JP6973455B2 - Terminal holder and terminal crimping device - Google Patents

Description

The present invention relates to a technique for holding a terminal when crimping the terminal.

Terminals may be connected to the ends of wires in wire harnesses. The terminal is crimped to the electric wire by using, for example, the terminal crimping device described in Patent Document 1 or Patent Document 2.

In the terminal crimping device described in Patent Document 1, the terminal to be crimped is supplied in a chained manner in which a plurality of terminals are connected to a chain band (also referred to as a carrier or the like), and the terminal and the chain band are combined with the crimping operation. The disconnection operation is performed. At this time, in the terminal crimping device described in Patent Document 1, by interlocking the terminal feed mechanism and the crimping mechanism with one drive unit, it is possible to perform from supply of terminals to crimping and disconnection fully automatically. ..

On the other hand, the terminal crimping device described in Patent Document 2 is a manual crimping tool that manually supplies and crimps terminals. In this case, the terminals are manually supplied one by one.

Here, it is desired that the positioning accuracy between the terminal and the electric wire is high at the time of crimping the terminal. At this time, in the terminal crimping device described in Patent Document 1, it is possible to improve the positioning accuracy of the terminals on the feed mechanism side. On the other hand, when the manual crimping tool described in Patent Document 2 is supplied to the terminal crimping device by itself like the terminal to be crimped, in order to improve the positioning accuracy between the terminal and the electric wire, the terminal is used. It is conceivable that a part of the wire is held by the holding portion and the tip surface along the longitudinal direction of the terminal is pressed against the positioning portion while being crimped.

Japanese Unexamined Patent Publication No. 2014-211958 Japanese Unexamined Patent Publication No. 2005-190829

However, the terminals may be plastically deformed by the press during crimping and may extend in the longitudinal direction. In this case, if the tip surface along the longitudinal direction of the terminal is pressed against the positioning member, the positioning member may hinder the elongation and the terminal may be deformed into an unintended shape.

Therefore, an object of the present invention is to provide a technique capable of allowing the terminal to extend along the longitudinal direction at the time of crimping while making it possible to improve the positioning accuracy of the terminal.

In order to solve the above problem, the terminal holder according to the first aspect is a terminal holder that holds the terminal while positioning it at the time of crimping the terminal provided with the crimping portion to the electric wire, and is different from the crimping portion in the terminal. A substrate provided with a holding portion capable of holding a portion thereof and a tip surface held by the holding portion along the longitudinal direction of the terminal can be abutted against the substrate and can be moved closer to and separated from the holding portion. The substrate is provided with a positioned positioning portion, an urging portion for urging the positioning portion in a direction approaching the holding portion, and a retaining portion provided so as to be openable and closable with respect to the substrate, and the substrate is provided with a terminal. An accommodating recess and an urging member accommodating recess are formed, and a portion of the terminal different from the crimping portion can be accommodated in the terminal accommodating recess, and the urging portion is accommodated in the urging member accommodating recess. The retaining portion is provided so as to be hooked on the rear end portion of the terminal held by the holding portion in the closed state .

The terminal holder according to the second aspect is the terminal holder according to the first aspect, and the holding portion can individually hold a plurality of the terminals arranged in a direction intersecting the longitudinal direction.
The terminal crimping device according to the third aspect includes a terminal holder according to the first or second aspect, and a mold for sandwiching the terminal held by the terminal holder and crimping the electric wire.
The terminal crimping device according to the fourth aspect sandwiches and crimps the terminal held by the terminal holder to the electric wire by sandwiching the terminal holder holding the terminal while positioning the terminal at the time of crimping the terminal provided with the crimping portion to the electric wire. A support jig for mounting the mold and a support jig in a state of supporting the electric wire so that the end of the electric wire supported by the support jig is located at a position corresponding to the mold. The terminal holder includes a mounting portion, and the terminal holder includes a substrate provided with a holding portion capable of holding a portion of the terminal different from the crimping portion, and a tip along the longitudinal direction of the terminal held by the holding portion. It is provided with a positioning portion provided so as to be able to abut against a surface and to be movable away from the holding portion, and an urging portion for urging the positioning portion in a direction approaching the holding portion. A terminal accommodating recess and an urging member accommodating recess are formed in the substrate, and a portion of the terminal different from the crimping portion can be accommodated in the terminal accommodating recess, and the urging member accommodating recess is provided with the attachment. The power is settled .

The terminal crimping device according to the fifth aspect is the terminal crimping device according to the fourth aspect, and the support jig exposes a plurality of the electric wires covered with one sheath from the sheath. It can be supported so that the end portion is located at a position corresponding to the mold.

The terminal crimping device according to the sixth aspect is the terminal crimping device according to any one of the third to fifth aspects, and is input to an input unit into which an operator can input a force and the input unit. Further provided is a conversion unit that converts the force into a force that causes the upper and lower molds in the mold to move relative to each other in the approaching and separating directions.

The terminal crimping device according to the seventh aspect is the terminal crimping device according to the sixth aspect, and the input portion is formed so that the operator can hold it by hand and can be opened and closed. The conversion unit includes two rod-shaped handle portions formed, and the conversion unit converts the opening / closing operation of the two rod-shaped handle portions into relative movement of the upper mold and the lower mold in the approaching and separating directions.

The terminal crimping device according to the eighth aspect is the terminal crimping device according to any one of the third to fifth aspects, and further comprises a driving unit for moving the upper mold and the lower mold in the mold toward and away from each other. Be prepared.

The terminal crimping device according to the ninth aspect is the terminal crimping device according to the fourth or fifth aspect, further including a drive unit for moving the upper mold and the lower mold in the mold toward and away from each other, and supporting the terminal. A jig mounting portion is provided so as to be slidable in the longitudinal direction with respect to the upper die.

According to each aspect, when the terminal is set, a portion different from the crimping portion of the terminal is held by the holding portion, and the positioning portion is abutted against the tip surface of the terminal along the longitudinal direction, so that the terminal is raised with respect to the terminal holder. Positioning is possible with accuracy. Further, when the terminal pushes the positioning portion with the tip surface trying to extend in the longitudinal direction at the time of crimping the terminal, the positioning portion separates from the holding portion against the urging force of the urging portion. Therefore, the terminal can be extended in the longitudinal direction. From these, it is possible to allow the terminal to extend along the longitudinal direction at the time of crimping, while making it possible to improve the positioning accuracy of the terminal.

In particular, according to the second aspect, when the crimping operation of a plurality of terminals is simultaneously performed by one crimping device, the plurality of terminals crimped at the same time can be held while being positioned.

In particular, according to the sixth aspect, even in the case of a terminal crimping device operated by human power, it is possible to allow the terminal to extend along the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminal. can.

In particular, according to the seventh aspect, even when the terminal crimping device is a so-called hand tool type for hand-held work, the terminals are along the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminals. Can be tolerated.

According to the fourth aspect, it is possible to improve the positioning accuracy of the electric wire.

In particular, according to the eighth or ninth aspect, even in the case of a terminal crimping device operated by a drive unit, the terminal extends along the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminal. It can be tolerated.

In particular , according to the ninth aspect, when supplying the terminal to the terminal holder, the supply operation is facilitated by supplying the support jig mounting portion in a state of being moved in the longitudinal direction with respect to the upper mold.

This is an example of an electric wire with a terminal manufactured by a terminal crimping device. It is a front view which shows the terminal crimping apparatus which concerns on 1st Embodiment. It is a side view which shows the terminal crimping apparatus which concerns on 1st Embodiment. It is an enlarged front view which shows the terminal crimping apparatus which concerns on 1st Embodiment. It is an exploded perspective view which shows the terminal holder which concerns on 1st Embodiment. It is a top view which shows the terminal holder which concerns on 1st Embodiment. 6 is a cross-sectional view taken along the line VII-VII of FIG. It is an exploded perspective view which shows the support jig. It is explanatory drawing which shows the state which the terminal crimping apparatus is closed. It is sectional drawing which shows the state of the terminal holder after crimping. It is explanatory drawing which shows the state of the terminal holder before crimping. It is explanatory drawing which shows the state of the terminal holder after crimping. It is a side view which shows the terminal crimping apparatus which concerns on 2nd Embodiment. It is a top view which shows the terminal crimping apparatus which concerns on 2nd Embodiment. It is an exploded perspective view which shows the terminal holder which concerns on 2nd Embodiment. It is an exploded perspective view which shows the support jig. It is explanatory drawing which shows the state that the support jig mounting part was moved by a slide. It is explanatory drawing which shows the state that the support jig mounting part was moved by a slide.

{First embodiment}
Hereinafter, the terminal holder according to the first embodiment and the terminal crimping device including the terminal holder will be described.

<Electric wire with terminal>
First, the electric wire 1 with a terminal manufactured by the terminal crimping device will be described first. FIG. 1 is an example of an electric wire 1 with a terminal manufactured by a terminal crimping device.

The electric wire 1 with a terminal includes the electric wire 3 and the terminal 7 crimped to the end of the electric wire 3. In this embodiment, two electric wires 3 are twisted to form a twisted electric wire 2. Further, in the present embodiment, an example will be described in which the electric wire 1 with a terminal includes a jacket 6 that covers the periphery of the twisted electric wire 2.

Each electric wire 3 includes a core wire 4 and an insulating coating 5 that covers the periphery of the core wire 4. The core wire 4 is formed of a conductive material such as copper or aluminum. The core wire 4 may be composed of one wire or a plurality of wires. When the core wire 4 is composed of a plurality of strands, the plurality of strands may or may not be twisted. The insulating coating 5 is formed by, for example, extruding an insulating material such as a resin (for example, polyethylene or polyvinyl chloride) around the core wire 4.

The jacket 6 is also called a sheath or the like, and is formed by extrusion molding around two electric wires 3 in which an insulating material such as resin (for example, polyethylene or polyvinyl chloride) is twisted.

The jacket 6 is peeled off at the end of the terminal-attached electric wire 1 and does not exist. Therefore, the two electric wires 3 are exposed at the end of the electric wire 1 with terminals. The insulating coating 5 is peeled off after being untwisted at the ends of the two exposed electric wires 3. As a result, the end portion of the core wire 4 is exposed. The terminal 7 is connected to the area including the exposed end of the core wire 4.

The terminal 7 includes a crimping portion 8 and a mating side connecting portion 9. The crimping portion 8 includes a core wire crimping portion 8a and a covering crimping portion 8b. Each crimping portion 8 includes a bottom portion and a crimping piece formed upright on the bottom portion. Then, each crimping portion 8 is pressed while being sandwiched by the mold of the terminal crimping device together with the portion of the electric wire 3 to be crimped (the core wire crimping portion 8a is the core wire 4 and the coated crimping portion 8b is the insulating coating 5). As a result, each crimping piece is crimped in a state in which the portion of the electric wire 3 to be crimped is involved, so that the terminal 7 and the electric wire 3 are connected. The mating side connection portion 9 may be formed in a male terminal shape or a female terminal shape, for example. Here, an example in which the mating side connection portion 9 is formed in the shape of a female terminal will be described. Therefore, the mating side connecting portion 9 has a box portion formed in a box shape. Inside the box, a contact portion that can be connected to the tab terminal on the other side inserted inside the box is formed.

The twisted electric wire 2 thus processed is incorporated in a wire harness mounted on a vehicle, and is used, for example, as a cable for high-speed communication conforming to an Ethernet (registered trademark) standard.

However, the electric wire 3 to be manufactured is not limited to the above. For example, there may be a case where one electric wire 3 exists alone. Further, for example, even when a plurality of electric wires 3 are provided, they may not be twisted together. Further, for example, there may be a case where the plurality of core wires 4 do not each have an independent insulating coating 5, and the plurality of core wires 4 share one insulating coating 5. Further, for example, the electric wire 3 may not include the jacket 6. Further, the terminal 7 is not limited to the above. For example, the crimping portion 8 of the terminal 7 may omit the covering crimping portion 8b and may be only the core wire crimping portion 8a.

<Terminal crimping device>
Next, a terminal crimping device for crimping the terminal 7 to the end of the electric wire 3 will be described. FIG. 2 is a front view showing the terminal crimping device 10 according to the first embodiment. FIG. 3 is a side view showing the terminal crimping device 10 according to the first embodiment. FIG. 4 is an enlarged front view showing the terminal crimping device 10 according to the first embodiment.

The terminal crimping device 10 includes a terminal holder 60 and a mold. This embodiment is an example in which the terminal crimping device 10 is a so-called manual crimping tool, and in particular, a so-called hand tool type in which an operator manually inputs a force related to crimping. Therefore, here, the terminal crimping device 10 further includes a hand tool main body 20. In the terminal crimping device 10, the terminal holder 60 and the mold are incorporated as a part of the upper unit 40 and the lower unit 50 attached to the hand tool main body 20.

First, the hand tool main body 20 will be described. The hand tool main body 20 includes an input unit 22 and a conversion unit 30.

The input unit 22 allows the operator to input force. Here, since the operator manually inputs the force, the input unit 22 includes two rod-shaped handle portions 23 and 24. The two rod-shaped handle portions 23 and 24 are formed so that the operator can grasp them by hand. Further, the two rod-shaped handle portions 23 and 24 are formed so that the operator can manually open and close them. Specifically, the rod-shaped handle portions 23 and 24 are formed in the shape of a long rod, and are rotatably connected by a rotating pin 26 at one end side. The operator can move the portion relative to the approaching / separating direction while grasping the portion on the other end side of the portion connected by the rotating pin 26. In the following, the state in which the other ends of the two rod-shaped handle portions 23 and 24 are separated from each other (the state shown in FIG. 2) is defined as the open state, and the state in which the other ends are close to each other (the state shown in FIG. 9) is defined as the closed state. At this time, the operator can close the two rod-shaped handle portions 23, 24 by inputting a force in a direction in which the other ends of the two rod-shaped handle portions 23, 24 in the open state approach each other. NS.

The conversion unit 30 converts the force input to the input unit 22 into a force that relatively moves the upper mold 42 and the lower mold 52 in the mold in the approaching and separating directions. In particular, here, the conversion unit 30 converts the opening / closing operation of the two rod-shaped handle portions 23 and 24 into relative movement of the upper mold 42 and the lower mold 52 in the approaching and separating directions. Specifically, the conversion unit 30 includes an upper frame 32, a lower frame 34, and a link 36.

In the upper frame 32, one end is rotatably supported by the rotation pin 33 at one end of the rod-shaped handle 23. The upper frame 32 is formed to be shorter than the rod-shaped handle portion 23. An upper unit 40 is attached to the other end side of the upper frame 32. The upper mold 42 in the mold is provided on the upper unit 40. As shown in FIG. 4, the tip portion of the upper die 42 projects toward the lower frame 34 with respect to the upper frame 32.

In the lower frame 34, one end is rotatably supported by the rotation pin 35 at one end of the rod-shaped handle 24. The lower frame 34 is formed to be shorter than the rod-shaped handle portion 24. A lower unit 50 is attached to the other end of the lower frame 34. The lower unit 50 is provided with a lower mold 52 in the mold. The tip of the lower mold 52 projects toward the upper frame 32 with respect to the lower frame 34.

The link 36 is a portion connecting the upper frame 32 and the lower frame 34. The link 36 is rotatably supported by the upper frame 32 by a rotating pin 37 on one end side. Further, the link 36 is rotatably supported by the lower frame 34 by the rotating pin 38 on the other end side. By providing the link 36, when the rod-shaped handle portions 23 and 24 are opened and closed, the postures of the upper frame 32 and the lower frame 34 are changed without changing the distance between the portions connected by the link 36. do.

More specifically, here, two rotation pins 33, 35 (points of action) that rotatably fasten the upper frame 32 and the lower frame 34, respectively, rotatably fasten the two rod-shaped handle portions 23, 24. It is located on the tip side of the rotation pin 26 (fulcrum) from the position gripped by the operator, that is, the position where the force is input (force point). Therefore, when the two rod-shaped handle portions 23 and 24 shift from the open state to the closed state, the two rotation pins 33 and 35 that rotatably hold the upper frame 32 and the lower frame 34 move apart from each other. At this time, the interval between the intermediate portions of the upper frame 32 and the lower frame 34 to which the links 36 are connected does not change. Therefore, the other ends of the upper frame 32 and the lower frame 34 are close to each other, so that the upper unit 40 having the upper mold 42 and the lower unit 50 having the lower mold 52 can move relative to each other. (See FIG. 9). Further, when the two rod-shaped handle portions 23 and 24 shift from the closed state to the open state, contrary to the above, the upper frame 32 and the lower frame 34 have one end portions approaching each other and the other end. The portions are separated from each other, so that the upper unit 40 including the upper mold 42 and the lower unit 50 including the lower mold 52 can be relatively moved in a direction in which they are separated from each other.

It is conceivable that the conversion unit 30 further includes a ratchet unit (not shown). The ratchet portion limits the operating direction of the rod-shaped handle portions 23, 24 by the operator from the open state to the closed state. As a result, it is possible to prevent a sudden transition from the closed state to the open state during crimping, and it is possible to suppress crimping defects.

At this time, it is conceivable that the conversion unit 30 further includes a ratchet unit release unit (not shown) that releases the operation of the ratchet unit. This makes it possible to shift from the closed state to the open state of the rod-shaped handle portions 23, 24 regulated by the ratchet portion. As the ratchet portion releasing portion, for example, in a state where the two rod-shaped handle portions 23 and 24 are closed and the crimping operation is completed, the operator further brings the two rod-shaped handle portions 23 and 24 closer to each other. It is conceivable that it is configured to operate by applying force. As a result, it is possible to prevent the ratchet portion release portion from interfering with the crimping operation. In this case, even when the operator applies a force in the direction of bringing the two rod-shaped handle portions 23, 24 closer to each other in order to operate the ratchet portion release portion in the state where the crimping operation is completed, the upper mold 42 and the lower It is preferable that the stopper portion 46 is provided so that the mold 52 does not come closer to the mold 52. The stopper portion 46 will be described later.

Further, at this time, it is conceivable that the conversion unit 30 further includes an urging unit (not shown) for urging the two rod-shaped handle units 23 and 24 in the open state. As a result, when the operation of the ratchet portion is released by the ratchet portion, the two rod-shaped handle portions 23 and 24 can be quickly returned to the open state.

However, the hand tool main body 20 may be capable of converting the force manually input by the operator into a force in the direction of moving the upper die 42 and the lower die 52 in close proximity to each other, and the configuration thereof is limited to the above. It's not a thing.

The upper unit 40 is provided on the upper frame 32. The upper unit 40 includes an upper mold 42 and an upper mold guide portion 44. Here, the tip of the upper frame 32 is divided into two branches, and a part of the upper mold 42 and the upper mold guide portion 44 is supported while being sandwiched between the upper mold 32 divided into two branches.

The upper mold 42 forms a mold for sandwiching the terminal 7 held by the terminal holder 60 together with the lower mold 52, which will be described later, and crimping the terminal 7 to the electric wire 3. The upper mold 42 is formed with a terminal deforming portion 43 that deforms the terminal 7 when the terminal 7 is sandwiched together with the lower mold 52. The upper mold 42 includes an upper mold 42a for a core wire crimping portion and an upper mold 42b for a coated crimping portion. The upper mold is formed in the shape of a rectangular plate, and recesses serving as terminal deformation portions 43 are formed at the lower ends in the elongated direction. The terminal deformed portion 43 in the core wire crimping portion upper mold 42a is formed in a shape corresponding to the core wire crimping portion 8a, and the terminal deformed portion 43 in the coated crimping portion upper mold 42b is formed in a shape corresponding to the coated crimping portion 8b. Will be done. Further, the upper mold 42 is supported by the upper frame 32 by being screwed to the upper frame 32 by using a through hole formed in the intermediate portion. Therefore, the upper mold 42 is removable and replaceable with respect to the upper frame 32. At this time, the upper die 42 may be supported so as to be movable in the elongated direction with respect to the upper frame 32 so that the crimping height can be adjusted. For example, the upper mold can move in the elongated direction with respect to the upper frame 32 because the through hole is a long hole. The movement of the upper die 42 along the longitudinal direction is performed, for example, by an adjustment unit (not shown).

The upper mold guide portion 44 is fixed to the upper frame 32. The upper mold guide portion 44 includes, for example, an intermediate portion overlapped with the upper mold 42 and both end portions 45 projecting on both sides of the intermediate portion. The middle portion is fixed to the upper frame 32 with the same screws as the screws for fixing the upper mold 42. Both end portions 45 are thickly formed and sandwich the upper mold 42 from both sides. As a result, the posture of the upper die 42 is stabilized. Further, as shown in FIG. 3, the lower portion 45a of both end portions 45 is formed thicker than the upper portion thereof, and is hooked on the upper frame 32 divided into two branches. As a result, the upper mold guide portion 44 is positioned (anti-rotated) with respect to the upper frame 32. Further, the adjusting portion is provided on the upper surface of the upper mold guide portion 44.

As the adjusting unit, for example, an adjusting screw may be used. More specifically, the adjusting portion includes a connecting plate portion that connects the upper surfaces of both end portions 45 of the upper mold 42, a screw that is passed through a through hole formed in the connecting plate portion, a nut that fastens the screw, and an upper mold. It is provided with an urging portion that urges the 42 upward (direction away from the lower mold 52). The urging portions are provided between both side portions of the upper die 42 and both end portions 45 of the upper die guide portion 44, respectively. The tip of the screw extending from the through hole of the connecting plate portion is in contact with the upper mold 42, and the position of the upper mold 42 with respect to the upper frame 32 can be adjusted by adjusting the length of the screw extending from the through hole. NS.

The lower unit 50 is provided on the lower frame 34. The lower unit 50 includes a lower mold 52, a terminal holder 60, and a support jig mounting portion 80, which are fixed to the lower frame 34. Here, the tip of the lower frame 34 is bifurcated, and a part of the lower mold 52 is sandwiched between the bifurcated lower frames 34. Further, the terminal holder 60 projects outward from one of the two-pronged lower frame 34. Further, the jig mounting portion projects outward from the other side of the lower frame 34 which is divided into two parts.

The lower mold 52 is arranged to face the upper mold 42. The lower mold 52 forms a mold for sandwiching the terminal 7 held by the terminal holder 60 together with the upper mold 42 and crimping the terminal 7 to the electric wire 3. The lower mold 52 includes a lower mold 52a for a core wire crimping portion and a lower mold 52b for a coated crimping portion. In the lower mold 52, the base end portion 53 is formed in a square plate shape, and the terminal support portion 54 that supports the terminal 7 in a manner of projecting upward (direction toward the upper mold 42) from the widthwise intermediate portion of the base end portion 53. Is formed. The terminal support portion 54 in the lower mold 52a for the core wire crimping portion is formed in a shape corresponding to the core wire crimping portion 8a, and the terminal support portion 54 in the lower mold 52b for the covering crimping portion is formed in a shape corresponding to the covering crimping portion 8b. Will be done. Further, each lower mold 52 is supported by the lower frame 34 by screwing the base end portion 53 to the lower frame 34 or the like. Therefore, each lower mold 52 is removable and replaceable with respect to the lower frame 34. Further, the protrusion 55 is formed so as to project upward (direction toward the upper mold 42) from both ends in the width direction of the base end portion 53. As shown in FIG. 3, the protrusion 55 is formed thicker than the base end portion 53 and is hooked on the lower frame 34 divided into two branches. As a result, the lower mold 52 is positioned (anti-rotated) with respect to the lower frame 34.

Here, as shown in FIGS. 3 and 4, a stopper portion 46 is provided so as to project from the lower surface of the lower portion of both end portions 45 of the upper mold guide portion 44. The stopper portion 46 is capable of adjusting the protrusion dimension from the lower portion of both end portions 45 of the upper mold guide portion 44. As a configuration that makes this possible, for example, a configuration with a screw screwed into a screw hole formed in the lower portion of both end portions 45 of the upper mold guide portion 44 and a nut screwed into the screw can be considered. The stopper portion 46 comes into contact with the upper surface of the protrusion 55 of the lower mold 52 when the crimping is completed, and suppresses the upper mold 42 and the lower mold 52 from approaching further. As a result, after the crimping is completed, even if further force is applied in the direction in which the two rod-shaped handle portions 23, 24 approach each other for the purpose of releasing the ratchet portion or unintentionally, the upper mold 42 and the lower mold 52 do so. The approach is suppressed.

The terminal holder 60 is arranged on the tip end side of the terminal 7 supported by the lower mold 52 with respect to the lower mold 52. Hereinafter, the terminal holder 60 will be described in detail with reference to FIGS. 5 to 7. FIG. 5 is an exploded perspective view showing the terminal holder 60 according to the first embodiment. FIG. 6 is a plan view showing the terminal holder 60 according to the first embodiment. FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG.

The terminal holder 60 holds the terminal 7 while positioning it at the time of crimping the terminal 7 provided with the crimping portion 8 to the electric wire 3. Here, the terminal holder 60 can hold the two terminals 7 while positioning them side by side. Specifically, the terminal holder 60 includes a base 62, a lid portion 64, a positioning portion 68, an urging portion 70, and a retaining portion 72.

The substrate 62 is fixed to the lower frame 34. The substrate 62 is fixed to the lower frame 34, for example, by screwing the mounting portion 62a extending downward to the lower frame 34. The upper surface 62b of the substrate 62 located on the opposite side of the mounting portion 62a has a rectangular first flat surface 62c, a rectangular second flat surface 62d protruding outward from the first flat surface 62c, and a first surface. It is composed of a guide surface 62e which is one end edge of the flat surface 62c and whose one end edge of the upper surface 62b of the substrate 62 is chamfered. A recess 63 is formed on the upper surface 62b of the substrate 62.

The recess 63 is formed, for example, in a manner of being recessed in the normal direction of the first flat surface 62c. As the recess 63, a terminal accommodating recess 63a, a positioning portion accommodating recess 63b, and an urging portion accommodating recess 63c are formed here. Further, here, the rotation mechanism accommodating recess 63d is also formed as the recess 63.

The terminal accommodating recess 63a is formed so as to accommodate the mating side connection portion 9 in the terminal 7. Specifically, the terminal accommodating recess 63a is formed in the shape of a long square hole in the first direction along the direction in which the first flat surface 62c and the second flat surface 62d are aligned. One end of the terminal accommodating recess 63a in the first direction is open outward from the guide surface 62e. As a result, the crimping portion 8 can extend outward through the opening while the mating side connecting portion 9 is housed in the terminal accommodating recess 63a. Further, the other end of the terminal accommodating recess 63a in the first direction communicates with the positioning portion accommodating recess 63b. As a result, the tip of the terminal 7 housed in the terminal accommodating recess 63a can be pulled out to the positioning portion accommodating recess 63b.

In this embodiment, a plurality of (here, two) terminal accommodating recesses 63a are formed. The two terminal accommodating recesses 63a are formed side by side along a second direction intersecting the first direction in the spreading direction of the first flat surface 62c. Each of the two terminal accommodating recesses 63a can accommodate one mating side connection portion 9. The length dimension of the terminal accommodating recess 63a is set, for example, to be equal to or less than the length dimension of the mating side connecting portion 9 (here, slightly smaller than the length dimension of the mating side connecting portion 9). The width dimension of the terminal accommodating recess 63a is set to be, for example, the same as the width dimension of the mating side connecting portion 9 (here, slightly larger than the width dimension of the mating side connecting portion 9). Further, for example, the depth dimension of the terminal accommodating recess 63a is set to be about the same as the height dimension of the mating side connection portion 9 (here, slightly larger).

The positioning portion accommodating recess 63b is formed on the first flat surface 62c so as to accommodate the positioning portion 68. Here, the positioning portion accommodating recess 63b is formed in the shape of a rectangular hole long in the second direction. The length dimension (dimension along the second direction) of the positioning portion accommodating recess 63b is set to be larger than the length dimension of the positioning portion 68 (here, slightly larger than the length dimension of the positioning portion 68). .. The width dimension (dimension along the first direction) of the positioning portion accommodating recess 63b is set to be larger than the width dimension of the positioning portion 68. As a result, the positioning portion 68 can be moved in the width direction while being accommodated in the positioning portion accommodating recess 63b. The positioning portion accommodating recess 63b communicates with the terminal accommodating recess 63a in the intermediate portion in the length direction. Further, the positioning portion accommodating recess 63b communicates with the urging portion accommodating recess 63c on the opposite side of the terminal accommodating recess 63a in the intermediate portion in the length direction.

The urging portion accommodating recess 63c is formed so as to accommodate the urging portion 70. The urging portion accommodating recess 63c is formed in a shape corresponding to the urging portion 70. Here, since the compression coil spring is provided as the urging portion 70, the urging portion accommodating recess 63c is formed in a long groove shape in the first direction.

The rotation mechanism accommodating recess 63d is formed so as to accommodate a mechanism for rotating the retaining plate portion 73 in the retaining portion 72.

The lid portion 64 is formed in the shape of a rectangular plate. The lid portion 64 is fixed to the substrate 62 by, for example, a screw (not shown) or the like. The lid portion 64 covers the upper part of the terminal accommodating recess 63a. Therefore, here, the inner peripheral surface of the terminal accommodating recess 63a and the lower surface of the lid portion 64 can cover the periphery of the mating side connecting portion 9 in the terminal 7 from all sides. Here, the portion of the terminal 7 that covers the periphery of the mating connection portion 9 from all sides is a holding portion 66 that can hold a portion different from the crimping portion 8 of the terminal 7. Here, since a plurality (here, two) of the terminal accommodating recesses 63a are formed, the holding portion 66 can individually hold a plurality of (here, two) terminals 7 arranged in a direction intersecting the longitudinal direction. be.

The positioning portion 68 is provided so as to be able to abut against the tip surface of the terminal 7 held by the holding portion 66 along the longitudinal direction. Further, the positioning portion 68 is provided so as to be movable close to and separated from the holding portion 66. Here, the positioning portion 68 is formed in a rod shape and is housed in the positioning portion accommodating recess 63b. At this time, the positioning portion 68 is movable in the width direction with respect to the positioning portion accommodating recess 63b. As a result, the positioning unit 68 can be moved closer to and separated from the holding unit 66.

The urging unit 70 urges the positioning unit 68 in a direction approaching the holding unit 66. As described above, the urging portion 70 will be described here assuming that a compression coil spring is adopted. However, as the urging portion 70, another spring member such as a leaf spring or a member made of an elastic material such as rubber may be used. The urging portion 70 is housed in the urging portion accommodating recess 63c. At this time, the urging portion 70 is in a natural state or a compressed state in a state where the positioning portion 68 is closest to the holding portion 66 (here, the tip of the positioning portion 68 is in contact with the side surface of the positioning portion accommodating recess 63b). It should be.

The retaining portion 72 is a portion for preventing the terminal 7 held by the holding portion 66 from being pulled out. The pull-out portion includes a retaining plate portion 73 and an opening / closing operation portion 75.

The retaining plate portion 73 includes a wide portion 73a and a narrow portion 73b connected to the wide portion 73a. The wide portion 73a and the base end portion 73c of the narrow portion 73b are formed in a flat plate shape, and the tip end portion 73d of the narrow portion 73b is bent with respect to the base end portion 73c. The retaining plate portion 73 is rotatably supported by a rotating pin 74 with respect to the substrate 62. The retaining plate portion 73 is opened and closed by rotating with respect to the substrate 62. In the following, as shown by the solid line in FIG. 7, the retaining plate portion 73 is in a closed posture in which the terminal 7 can be retracted, and as shown in the virtual line in FIG. 7, it is in a posture rotated from the closed posture. The posture in which the terminal can be pulled out from the terminal accommodating recess 63a is defined as the open posture. In the closed posture, the base end portion 73c of the wide portion 73a and the narrow portion 73b is parallel to the upper surface 62b of the substrate 62, and the tip portion 73d of the narrow portion 73b closes at least a part of the opening of the terminal accommodating recess 63a. .. At this time, if the mating side connecting portion 9 of the terminal 7 is housed in the terminal accommodating recess 63a, the tip end portion 73d of the narrow portion 73b can be caught by the rear end portion of the mating side connecting portion 9, and thus the terminal 7 It is said that it is in a state where it is prevented from coming off. Further, in the open posture, the state in which the base end portion 73c of the wide portion 73a and the narrow portion 73b is separated from the upper surface 62b of the substrate 62 and the tip portion 73d of the narrow portion 73b closes the opening of the terminal accommodating recess 63a is released. Will be done. The rotatable angle of the retaining plate portion 73 with respect to the substrate 62 from the closed posture is such that the state in which the tip portion 73d of the narrow portion 73b of the retaining plate portion 73 closes the opening of the terminal accommodating recess 63a is released. If there is, it is not particularly limited.

The opening / closing operation unit 75 enables the opening / closing operation of the retaining unit 72. Here, the opening / closing operation unit 75 includes an operation dial 76 and two gears 77 and 78. The operation dial 76 is provided on the side surface of the substrate 62. The two gears 77 and 78 are housed in the rotation mechanism accommodating recess 63d in a state of being meshed with each other. The gear 77 is non-rotatably supported by a shaft connected to the operation dial 76, and the gear 78 is fixed to the retaining plate portion 73. A rotation pin 74 is passed through the gear 78. Then, when the operation dial 76 is turned, the gear 77 is turned. As a result, the gear 78 that meshes with the gear 77 rotates, and the retaining plate portion 73 to which the gear 78 is fixed rotates. It is preferable that the opening / closing operation unit 75 can maintain the retaining plate portion 73 in the open state. Further, it is preferable that the opening / closing operation unit 75 can keep the retaining plate portion 73 in a closed state.

The support jig mounting portion 80 can mount the support jig 90 that supports the electric wire 3 so that the end portion of the electric wire 3 supported by the support jig 90 is located at a position corresponding to the mold. The support jig mounting portion 80 is arranged on the side opposite to the terminal holder 60 with respect to the lower mold 52. Specifically, the support jig mounting portion 80 includes a stage 82 and a mounting portion 84.

The stage 82 is formed in the shape of a rectangular plate. The support jig 90 is placed on the upper surface of the stage 82. At this time, a recess 83 is formed on the upper surface of the stage 82. The concave portion 83 accommodates the convex portion 98 formed on the support jig 90. By fitting the convex portion 98 into the concave portion 83, the support jig mounting portion 80 and the support jig 90 are positioned. It is preferable that a plurality of the concave portions 83 and the convex portions 98 are formed. As a result, it is possible to prevent the support jig mounting portion 80 and the support jig 90 from rotating.

The mounting portions 84 are projected from both sides of the base end of the stage 82. The mounting portion 84 is overlapped with the protrusion 55 of the lower mold 52. Then, the support jig mounting portion 80 is fixed to the lower mold 52 by screwing the mounting portion 84 to the protrusion 55 or the like, and is thus fixed to the lower frame 34. However, the support jig mounting portion 80 may be directly fixed to the lower frame.

Here, the support jig 90 mounted on the support jig mounting portion 80 will be described with reference to FIG. FIG. 8 is an exploded perspective view showing the support jig 90.

The support jig 90 is a member that supports the electric wire 3 when crimping the terminal to the electric wire 3. Here, the twisted electric wire 2 is assumed as the electric wire 3, and the simultaneous crimping of two terminals is assumed as the crimping mode of the terminal 7, so that the support jig 90 positions the ends of the two electric wires 3 in the twisted electric wire 2. It can be held while holding. Specifically, the support jig 90 includes a first member 91 and a second member 94.

The first member 91 is a portion that partitions the tip of the twisted electric wire 2. The first member 91 has a rod-shaped portion 92 formed in a long rod shape and a protruding piece 93 provided at the tip of one end side of the rod-shaped portion 92 in a direction protruding in a direction intersecting the extending direction of the rod-shaped portion 92. include. The projecting piece 93 is formed with two groove portions 93a recessed from the tip end portion toward the base end side side by side. As a result, the tip of the protruding piece 93a is formed in a comb shape having three teeth. Each groove portion 93a is formed so that a portion of the electric wire 3 in which the insulating coating 5 exists can be inserted. Therefore, by inserting the ends of the two electric wires 3 into the groove portions 93a, the two electric wires 3 are partitioned and held. That is, here, the portion of the protruding piece 93 in which the two groove portions 93a are formed constitutes the partition portion. At this time, it is preferable that the width dimension of the groove portion 93a is set to a dimension that allows the electric wire 3 to be press-fitted. Thereby, even when the support jig 90 is used in a state where the groove portion 93a faces vertically downward, the state in which the partition portion holds the electric wire 3 can be more reliably maintained.

The second member 94 is a portion that holds an intermediate portion (here, a portion having a jacket 6) of the twisted electric wire 2. The second member 94 is formed in a long rectangular parallelepiped shape. Further, the second member 94 is formed so that the cross section cut along the plane orthogonal to the long direction is wide. A first groove 95 in which the first member 91 is accommodated is formed on one main surface of the second member 94. The width dimension of the first groove 95 is set to be about the same as the width dimension of the first member 91. Further, a second groove 96 in which the twisted electric wire 2 is accommodated and held is formed on the other main surface facing opposite to one main surface of the second member 94. Here, the first groove 95 and the second groove 96 are formed over the entire length of the second member 94, that is, from one end side edge portion to the other end side edge portion of the second member 94. ing. The width dimension of the second groove 96 is set to be about the same as the width dimension of the region where the jacket 6 exists in the twisted electric wire 2. Preferably, the width dimension of the second groove 96 is set to a dimension in which the portion of the twisted electric wire 2 where the jacket 6 exists can be press-fitted. As a result, the twisted electric wire 2 is less likely to fall off from the second groove 96 even when the second groove 96 is directed vertically downward.

The first member 91 and the second member 94 are united by a uniting mechanism unit. Here, screw holes 91a and 94a and screws are assumed as such a uniting mechanism portion. The screw holes 91a and 94a are formed in the first member 91 and the second member 94, respectively. The screw hole 91a formed in the first member 91 is formed in a manner of penetrating both side surfaces along the width direction at the base end portion of the rod-shaped portion 92. For example, two screw holes 91a are formed along the extending direction of the rod-shaped portion 92. The screw hole 94a formed in the second member 94 is formed so as to penetrate from the inner peripheral surface to the side surface of the first groove 95 along the width direction. Two screw holes 94a are also formed along the extending direction of the second member 94. Then, with the first member 91 housed in the first groove 95 and the positions of the two screw holes 91a and 94a aligned, the screws are tightened in the screw holes 91a and 94a to form the first member 91 and the second member 94. Are united. Further, when the screw is removed, the locking between the first member 91 and the second member 94 is released, and the first member 91 and the second member 94 are in a detachable state. Here, the screw hole 94a is formed as an elongated hole. As a result, the positions of the first member 91 and the second member 94 can be adjusted. However, the configuration of the coalescence mechanism is not limited to the above. For example, it may be a fitting structure of a convex portion and a concave portion, or it may be a locking mechanism such as a snap lock described later.

Further, the second member 94 is formed with a convex portion 98 for positioning the support jig mounting portion 80. The convex portion 98 is formed so as to project from the other main surface of the second member 94. The convex portion 98 is formed at a position avoiding the second groove 96 along the width direction of the second member 94. The convex portion 98 is formed between the two screw holes 94a along the long direction of the second member 94. For example, two convex portions 98 are formed at intervals along the width direction of the second member 94.

It is preferable that the support jig mounting portion 80 and the support jig 90 can be maintained in a mounted state in which the convex portion 98 is fitted in the concave portion 83. As the mounting state maintaining portion for maintaining the support jig mounting portion 80 and the support jig 90 in the mounted state, for example, a magnet can be used. In this case, for example, a permanent magnet that attracts each other is fixed to both the tip of the convex portion 98 and the bottom of the concave portion 83. Further, it is conceivable that the permanent magnet is fixed only to one of the tip of the convex portion 98 or the bottom of the concave portion 83, and the contact portion with the permanent magnet in the member on the other side is formed of a magnetic material such as stainless steel.

However, the configuration is not limited to the configuration in which a permanent magnet is used as the mounting state maintaining portion for maintaining the supporting jig mounting portion 80 and the supporting jig 90 in the mounted state, for example, by press-fitting the concave portion 83 and the convex portion 98. It may be present, or it may be configured by using, for example, a snap lock described later.

<Operation>
Next, an example of a terminal crimping operation using the terminal crimping device 10 will be described.

First, the terminal 7 is set in the terminal holder 60 fixed to the terminal crimping device 10. Specifically, the two terminals 7 are inserted into the terminal accommodating recess 63a in a state where the opening / closing operation portion 75 is operated to open the retaining portion 72. Then, while abutting the tip surface of the terminal 7 against the positioning portion 68, the retaining portion 72 is closed and the tip of the retaining portion 72 is hooked on the rear end of the mating connection portion 9. As a result, the terminal 7 is positioned and set on the terminal crimping device 10 with high accuracy. That is, when the terminal 7 is set in the terminal holder 60, the crimping portion 8 extending from the mating side connecting portion 9 held in the terminal holder 60 of the terminals 7 is placed on the lower mold 52 or is placed on the lower mold. It will be located in a position slightly above the 52.

Next, the electric wire 3 is set in the terminal crimping device 10.

When setting the electric wire 3 in the terminal crimping device 10, first, the electric wire 3 is set in the support jig 90. Specifically, in the support jig 90, the first member 91 and the second member 94 are in a combined state in advance. In this state, the two electric wires 3 exposed at the tip of the twisted electric wire 2 are untwisted and then inserted into each groove portion 93a of the first member 91. Further, the intermediate portion of the twisted electric wire 2 is inserted into the second groove 96 of the second member 94. This completes the setting of the electric wire 3 on the support jig 90.

After the setting of the electric wire 3 on the support jig 90 is completed, the support jig 90 in which the electric wire 3 is set is attached to the terminal crimping device 10. Specifically, the convex portion 98 projecting from the lower surface of the second member 94 of the support jig 90 is housed in the concave portion 83 formed on the upper surface of the stage 82 of the support jig mounting portion 80. At this time, the support jig 90 and the support jig mounting portion 80 are fixed by a permanent magnet provided at at least one of the tip of the convex portion 98 and the bottom of the concave portion 83 as described above. When the support jig 90 on which the electric wire 3 is set is completely attached to the terminal crimping device 10, the setting of the electric wire 3 to the terminal crimping device 10 is completed. As a result, the end portion of the electric wire 3 is placed on the bottom portion of the crimping portion 8, or is positioned so as to float slightly upward with respect to the bottom portion within the range of being accommodated between the crimping pieces.

Therefore, when the setting of the terminal 7 and the electric wire 3 to the terminal crimping device 10 is completed, the crimping portion 8 of the terminal 7 is located between the upper die 42 and the lower die 52, and the bottom portion and the upper die 42 of the crimping portion 8 are located. The electric wire 3 is located between the two. When this state is reached, the operator starts the crimping operation.

Specifically, as shown in FIG. 9, the operator inputs the force in the direction of approaching each other while grasping the two rod-shaped handle portions 23 and 24. When the two rod-shaped handle portions 23 and 24 approach each other by this force, the tip portions of the upper frame 32 and the lower frame 34 approach each other, and the upper unit 40 and the lower unit 50 approach each other. As a result, the upper die 42 and the lower die 52 approach each other, and eventually the crimping portion 8 and the electric wire 3 are sandwiched and pressed to be deformed into a shape corresponding to the shape of the deformed portion of the crimping portion 8.

At the time of this deformation, when the terminal 7 tries to extend in the longitudinal direction, the tip surface of the terminal 7 presses the positioning portion 68. The positioning unit 68 receives this pressing force and moves away from the holding unit 66 against the urging force as shown in FIG. This makes it possible for the terminal 7 to extend in the longitudinal direction.

The operation of the positioning portion 68 before and after crimping is shown in FIGS. 11 and 12 in a plan view. That is, in the state before crimping, as shown in FIG. 11, the positioning portion 68 is in contact with the tip surface of the terminal 7 in a state of being close to the holding portion 66. Then, when the terminal 7 tries to extend in the longitudinal direction due to crimping, the tip surface of the terminal 7 presses the positioning portion 68. The positioning unit 68 receives this pressing force and resists the urging force, and moves away from the holding unit 66 as shown in FIG. The amount of movement of the positioning unit 68 depends on the amount of extension of the terminal 7. Therefore, it is preferable that the difference between the width dimension of the positioning portion accommodating recess 63b and the width dimension of the positioning portion 68 is set to be equal to or larger than the expected maximum elongation amount of the terminal 7. In FIG. 12, the two terminals 7 are similarly extended, but the amount of extension of the two terminals 7 may be different. In this case, only the terminal 7 having the larger elongation amount may press the positioning portion 68.

When the terminal crimping is completed, the electric wire 1 with a terminal is taken out. Specifically, the operator grips the two rod-shaped handle portions 23 and 24 and inputs further force in the direction of approaching each other. As a result, the ratchet portion is released, and the two rod-shaped handle portions 23, 24 shift to the open state. In this state, the support jig 90 in which the terminal-attached electric wire 1 is set is removed from the support jig mounting portion 80 while the retaining portion 72 of the terminal holder 60 is opened. Then, by removing the terminal-attached electric wire 1 from the support jig 90, the terminal-attached electric wire 1 as shown in FIG. 1 can be obtained.

According to the above aspect, when the terminal 7 is set, a portion different from the crimping portion 8 of the terminal 7 is held by the holding portion 66, and the positioning portion 68 is abutted against the tip surface of the terminal 7 along the longitudinal direction, whereby the terminal holder The terminal 7 can be positioned with high accuracy with respect to 60. Further, when the terminal 7 tries to extend in the longitudinal direction and the tip surface pushes the positioning portion 68 at the time of crimping the terminal 7, the positioning portion 68 separates from the holding portion 66 against the urging force of the urging portion 70. Therefore, the terminal 7 can extend in the longitudinal direction. From these, it is possible to allow the terminal 7 to extend along the longitudinal direction at the time of crimping, while making it possible to improve the positioning accuracy of the terminal 7.

Further, when the crimping operation of the two terminals 7 is performed simultaneously by one terminal crimping device 10, the terminal holder 60 can hold the two terminals 7 to be crimped at the same time while positioning them. In particular, when the crimping operation of the two terminals 7 is performed simultaneously by one terminal crimping device 10 and each terminal 7 is supplied as a single unit, the positioning mode along the longitudinal direction is to thrust into the positioning portion 68. The method of hitting is effective. Even in this case, if the terminal 7 tries to stretch when crimping the terminal 7, it can stretch against the urging force of the urging portion 70.

Further, even when the terminal crimping device 10 is a type operated by human power, particularly a so-called hand tool type in which work is performed by hand, the terminal 7 is placed in the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminal 7. It can be tolerated to stretch along.

Further, by supporting the electric wire 3 with the support jig 90, the positioning accuracy of the electric wire 3 along the longitudinal direction can be improved.

{Second embodiment}
Next, the terminal holder 160 according to the second embodiment and the terminal crimping device 110 including the terminal holder 160 will be described. FIG. 13 is a side view showing the terminal crimping device 110 according to the second embodiment. FIG. 14 is a plan view showing the terminal crimping device 110 according to the second embodiment. In the description of the present embodiment, the same components as those described so far are designated by the same reference numerals and the description thereof will be omitted.

This embodiment is an example in which the terminal crimping device 110 is driven by a drive unit. Therefore, here, the terminal crimping device 110 includes a driving main body 120 instead of the hand tool main body 20.

The drive main body 120 includes a frame 122 and a drive 130. Further, here, the drive main body 120 includes a stage 124 and a guide 126. In the terminal crimping device 110 according to the present embodiment, the terminal holder 160 and the mold are one component of the upper unit 140 and the lower unit 150 attached to the driving main body 120.

Driver 130 causes relative movement upper die 42 and the lower mold 1 52 toward and away from the direction in the mold. Here, the drive unit 130 includes a drive source 132 and a transmission mechanism. The drive source 132 is fixed to the frame 122. The drive source 132 is composed of an actuator such as a cylinder or a motor. Transmission mechanism, the driving force of the driving source 132 is transmitted to the upper die 42, reciprocates the upper die 42 relative to the lower mold 1 52. The transmission mechanism is composed of a ram member 134 connected to the upper unit 140, a cam mechanism (not shown) that is interposed between the ram member 134 and the drive source 132 and reciprocates the ram member 134.

Also in the upper unit 140, the upper mold 42 is guided by the upper mold guide portion (not shown) similar to the upper mold guide portion 44. On the upper surface of the upper die 42, the side surface of the adjusting shaft of the adjustable the adjustment portion the position of the upper die 42 relative to the lower mold 1 52 are abut. The side surface of the adjustment shaft is formed in a spiral shape whose diameter gradually changes with respect to the center, for example. Thus, by rotating the adjusting shaft, be capable of adjusting the distance between the center and the upper surface of the upper die 42 of the adjusting shaft, with it, it is possible to adjust the position of the upper die 42 relative to the lower mold 1 52.

The stage 124 is formed in the shape of a square plate and is fixed to the frame 122. The stage 124 is located below the upper unit 140. The lower unit 150 is supported on the upper surface of the stage 124. A guide portion 126 is fixed to the upper surface of the stage 124.

The lower unit 150 includes a lower mold 152, a terminal holder 160, and a support jig mounting portion 180. Of the lower unit 150, the support jig mounting portion 180 is provided so as to be slidable in the longitudinal direction of the electric wire 3 with respect to the upper die 42. Here, the support jig mounting portion 180 will be described as being integrally connected to the lower mold 152 and the terminal holder 160. Therefore, here, the lower die 152 and the terminal holder 160 are integrated with the support jig mounting portion 180 and can be slidably moved in the longitudinal direction of the electric wire 3 with respect to the upper die 42. However, it is not an essential configuration that the terminal holder 160 can slide and move in the longitudinal direction of the electric wire 3 with respect to the upper die 42. Further, it is not essential that the lower die 152 can slide and move in the longitudinal direction of the electric wire 3 with respect to the upper die 42.

As shown in FIG. 15, the main change in the terminal holder 160 is that the substrate 162 is formed in a substantially rectangular parallelepiped shape so that it can be easily placed on the stage 124. Further, on the upper surface 162b of the substrate 162, a third flat surface 162e that is recessed from the first flat surface 62c is formed instead of the chamfered inclined guide surface 62e.

The main change of the lower mold 152 is that the protrusion 55 is formed in an omitted shape.

Further, the support jig mounting portion 180 is formed in a shape such that two rectangular parallelepipeds 181a and 181b having different sizes are arranged side by side, and the support jig 190 is supported on the upper surface of the large rectangular parallelepiped 181a. The lower mold 1 52 is connected to the tip of a small cuboid 181b. At this time, a convex portion 183 that fits in the concave portion 198 formed in the support jig 190 is projected on the upper surface of the large rectangular parallelepiped 181a. The convex portion 183 and the concave portion 198 are for positioning the support jig 190 and the support jig mounting portion 180 in place of the convex portion 98 and the concave portion 83. In the example shown in FIG. 18, two convex portions 183 and two concave portions 198 are provided along the longitudinal direction of the electric wire 3. However, two convex portions 183 and two concave portions 198 may be provided along the width direction of the electric wire 3. Further, the support jig mounting unit 180 includes an operation unit 185 that is operated by an operator when the support jig mounting unit 180 is moved. The operation unit 185 is formed, for example, in the shape of a U-shaped rod, and projects from the side surface of a large rectangular parallelepiped 181a.

At this time, the support jig 90 and the support jig mounting portion 80 were fixed by using a magnet, but here, the support jig 190 and the support jig mounting portion 180 are the lock portion 186 and the lock receiver. It is fixed by the part 199. One of the lock portion 186 and the lock receiving portion 199 is fixed to the support jig 90, and the other is fixed to the support jig mounting portion 80. For example, as the lock portion 186 and the lock receiving portion 199, it is conceivable to adopt a lock mechanism such as a so-called snap lock.

FIG. 16 is an exploded perspective view showing the support jig 190. The main change of the support jig 190 mounted on the support jig mounting portion 180 is that the second member 194 is longer than the second member 94. At this time, the first groove 195 is different from the first groove 9 5, extends only to a position in the longitudinal direction intermediate portion of the second member 194. Second groove 1 96 extends over the entire from one end of the second member 1 94 like the second groove 96 to the other. The recess 198 instead protrusion 98 is formed in the second member 1 94, as described above. Here, the recess 198 is formed in the shape of a through hole, but may be formed with a bottom. Furthermore, the lock receiving portion 199 is formed in the second member 1 94.

The guide portion 126 regulates the movement of the support jig mounting portion 180, and here, the movement of the lower unit 150 including the support jig mounting portion 180 and moving integrally. In particular, here, the guide portion 126 regulates the moving direction of the lower unit 150 in one direction. The lower unit 150 is supported so as to be reciprocally movable between the first position and the second position in the direction. The first position is a position where the lower mold 152 is located directly below the upper mold 42, as shown in FIGS. 13 and 14. The crimping operation is performed with the lower unit 150 in this position. The second position is the position where the lower mold 152 is separated from the upper mold 42, as shown in FIGS. 17 and 18. With the lower unit 150 in this position, it is preferable that the terminal 7 is set with respect to the terminal holder 160 and the support jig 190 supporting the electric wire 3 is set with respect to the support jig mounting portion 180. As a result, it is possible to prevent the upper unit 140, particularly the upper mold 42, from getting in the way when the terminal 7 is set and the support jig 190 that supports the electric wire 3 is set. The guide portion 126 is formed in a U shape here and is fixed to the upper surface of the stage 124.

<Operation>
Next, an example of the terminal 7 crimping operation using the terminal crimping device 110 will be described.

First, as shown in FIGS. 17 and 18, the lower unit 150 is pulled out to the second position. In this state, the terminal 7 is set in the terminal holder 160 fixed to the terminal crimping device 110. Specifically, the two terminals 7 are inserted into the terminal accommodating recess 63a in a state where the opening / closing operation portion 75 is operated to open the retaining portion 72. Then, while abutting the tip surface of the terminal 7 against the positioning portion 68, the retaining portion 72 is closed and the tip of the retaining portion 72 is hooked on the rear end of the mating connection portion 9. As a result, the terminal 7 is positioned and set on the terminal crimping device 110 with high accuracy. That is, when the terminal 7 is set in the terminal holder 160, the crimping portion 8 extending from the mating side connecting portion 9 held in the terminal holder 160 among the terminals 7 is placed on the lower mold 152 or is placed on the lower mold. It will be located in a position slightly above the 152.

Next, the electric wire 3 is set in the terminal crimping device 110.

When setting the electric wire 3 in the terminal crimping device 110, first, the electric wire 3 is set in the support jig 190. Specifically, in the support jig 190, the first member 91 and the second member 194 are in a combined state in advance. In this state, the two electric wires 3 exposed at the tip of the twisted electric wire 2 are untwisted and then inserted into each groove portion 93a of the first member 91. Further, the intermediate portion of the twisted electric wire 2 is inserted into the second groove 196 of the second member 194. This completes the setting of the electric wire 3 on the support jig 190.

After the setting of the electric wire 3 on the support jig 190 is completed, the support jig 190 in which the electric wire 3 is set is attached to the terminal crimping device 110. Specifically, the convex portion 183 projecting from the upper surface of the support jig mounting portion 180 is housed in the concave portion 198 formed in the second member 194 of the support jig 190. As a result, the end portion of the electric wire 3 is placed on the bottom portion of the crimping portion 8, or is positioned so as to float slightly upward with respect to the bottom portion within the range of being accommodated between the crimping pieces. In this state, the lock portion 186 provided on the support jig mounting portion 180 is locked to the lock receiving portion 199 provided on the second member 194. This completes the setting of the support jig 190.

After setting the terminal 7 in the terminal holder 160 and mounting the support jig 190 in which the electric wire 3 is set on the support jig mounting portion 180, the lower unit 150 is pushed into the first position. This completes the setting of the terminal 7 and the electric wire 3 on the terminal crimping device 110. In this state, the crimping portion 8 of the terminal 7 is located between the upper die 42 and the lower die 152, and the electric wire 3 is located between the bottom portion of the crimping portion 8 and the upper die 42. In this state, the operator drives the drive unit 130 to start the crimping operation.

Specifically, the operator drives the drive unit 130 by turning on the crimping start switch or the like. At this time, the drive unit 130 is configured to drive one round trip, that is, one cycle. More specifically, for example, the ram member 134 is stopped near the top dead center, and when the crimp start switch is turned on, the ram member 134 receives the driving force of the drive source 132 and descends toward the bottom dead center. The upper die 42 comes into contact with the crimping portion 8 of the terminal 7 while the ram member 134 is shifting from the top dead center to the bottom dead center. As the transition of the ram member 134 progresses, the deformation of the crimping portion 8 progresses. When the ram member 134 reaches the bottom dead center, the crimping portion 8 and the electric wire 3 are pressed by the upper die 42 and the lower die 152, and the crimping portion 8 is deformed into a desired shape.

At the time of this deformation, when the terminal 7 tries to extend in the longitudinal direction, the tip surface of the terminal 7 presses the positioning portion 68. The positioning unit 68 receives this pressing force and moves away from the holding unit 66 against the urging force. This makes it possible for the terminal 7 to extend in the longitudinal direction. The elongation of the terminal 7 is the same as that of the terminal crimping device 10.

The ram member 134 that has reached the bottom dead center shifts toward the top dead center as it is. Then, the drive of the drive unit 130 is stopped in a state where the ram member 134 reaches the top dead center.

When the drive of the drive unit 130 is stopped, the electric wire 1 with a terminal is taken out. Specifically, the operator pulls out the lower unit 150 to the second position. In this state, while opening the retaining portion 72 of the terminal holder 160, the support jig 190 in which the electric wire with terminal 1 is set is removed from the support jig mounting portion 180. Then, by removing the terminal-attached electric wire 1 from the support jig 190, the terminal-attached electric wire 1 as shown in FIG. 1 can be obtained.

According to this aspect, even in the case of the terminal crimping device 110 operated by the drive unit 130, it is possible to improve the positioning accuracy of the terminal 7 and allow the terminal 7 to extend along the longitudinal direction at the time of crimping. Can be done.

Further, by supporting the electric wire 3 at the time of crimping by the support jig 190, the positioning accuracy of the electric wire 3 can be improved.

Further, since the support jig mounting portion 180 is slidable, particularly here, the lower unit 150 is slidable, so that the terminal 7 can be manually supplied to the terminal holder 160. By supplying the tool mounting portion 180 in a state of being moved in the longitudinal direction with respect to the upper mold 42, the supply work becomes easy.

{Modification example}
So far, the terminal holders 60 and 160 have been described as holding the two terminals 7, but this is not an essential configuration. For example, the terminal holders 60 and 160 may hold one terminal 7. In this case, one electric wire 3 to be crimped from the terminal 7 may be present alone, or a plurality of electric wires 3 may be integrally present as in the twisted electric wire 2 described above. When the terminal holders 60 and 160 hold one terminal 7 and a plurality of electric wires 3 to be crimped are integrally present, naturally, the terminals 7 are crimped one by one to the plurality of electric wires 3 in order. Will be done. Further, for example, the terminal holders 60 and 160 may hold three or more terminals 7.

Further, although it has been described so far that the holding portion 66 is configured to surround the periphery of the terminal 7, this is not an essential configuration. For example, the holding portion may be a chuck portion capable of chucking the terminal 7. Further, even when the holding portion surrounds the periphery of the terminal 7, the lid portion 64 may be omitted and configured to surround three sides.

Further, although it has been described so far that one positioning portion 68 can be abutted against the tips of a plurality of terminals 7, this is not an essential configuration. For example, a plurality of positioning portions that can be abutted against the tip of one terminal 7 may be provided.

It should be noted that the configurations described in the above embodiments and the modifications can be appropriately combined as long as they do not conflict with each other.

Although the present invention has been described in detail as described above, the above description is an example in all aspects, and the present invention is not limited thereto. It is understood that innumerable variations not illustrated can be assumed without departing from the scope of the present invention.

1 Wire with terminal 2 Twisted wire 3 Wire 4 Core wire 5 Insulation coating 6 Jacket 7 Terminal 8 Crimping part 8a Core wire crimping part 8b Covered crimping part 9 Mating side connection part 10, 110 Terminal crimping device 22 Input part 23, 24 Rod-shaped handle part 30 Conversion part 32 Upper frame 34 Lower frame 36 Link 40, 140 Upper unit 42 Upper mold 43 Terminal deformation part 50, 150 Lower unit 52, 152 Lower mold 60, 160 Terminal holder 62, 162 Base 63 Recess 63a Terminal storage recess 63b Positioning part accommodating recess 63c Erasing part accommodating recess 64 Lid part 66 Holding part 68 Positioning part 70 Erasing part 72 Unlocking part 73 Unlocking plate part 80, 180 Support jig mounting part 90, 190 Wire support jig 91 First member 94 , 194 2nd member 95, 195 1st groove 96, 196 2nd groove

Claims (9)

A terminal holder that holds the terminal while positioning it when crimping the terminal with the crimping part to the electric wire.
A substrate provided with a holding portion capable of holding a portion of the terminal different from the crimping portion,
A positioning portion provided so as to be able to abut against the tip surface of the terminal held by the holding portion along the longitudinal direction and to be able to move closer to and away from the holding portion.
An urging unit that urges the positioning unit in a direction approaching the holding unit,
A retaining portion provided so as to be openable and closable with respect to the substrate,
Equipped with
The substrate is formed with a terminal accommodating recess and an urging member accommodating recess.
A portion of the terminal different from the crimping portion can be accommodated in the terminal accommodating recess.
The urging portion is housed in the urging member accommodating recess .
The retaining portion is a terminal holder provided so as to be hooked on the rear end portion of the terminal held by the holding portion in the closed state. The terminal holder according to claim 1.
The holding portion is a terminal holder capable of individually holding a plurality of the terminals arranged in a direction intersecting the longitudinal direction. The terminal holder according to claim 1 or 2,
A mold for sandwiching the terminal held by the terminal holder and crimping it to the electric wire, and
A terminal crimping device. A terminal holder that holds the terminal while positioning it when crimping the terminal with the crimping part to the electric wire.
A mold for sandwiching the terminal held by the terminal holder and crimping it to the electric wire, and
A support jig mounting portion capable of mounting the support jig in a state of supporting the electric wire so that the end portion of the wire supported by the support jig is located at a position corresponding to the mold .
Equipped with
The terminal holder is
A substrate provided with a holding portion capable of holding a portion of the terminal different from the crimping portion,
A positioning portion provided so as to be able to abut against the tip surface of the terminal held by the holding portion along the longitudinal direction and to be able to move closer to and away from the holding portion.
An urging unit that urges the positioning unit in a direction approaching the holding unit,
Equipped with
The substrate is formed with a terminal accommodating recess and an urging member accommodating recess.
A portion of the terminal different from the crimping portion can be accommodated in the terminal accommodating recess.
A terminal crimping device in which the urging portion is housed in the urging member accommodating recess. The terminal crimping device according to claim 4.
The support jig is a terminal crimping device capable of supporting a plurality of the electric wires covered with one sheath so that each end exposed from the sheath is located at a position corresponding to the mold. The terminal crimping device according to any one of claims 3 to 5.
An input section where the operator can input force, and
A conversion unit that converts the force input to the input unit into a force that relatively moves the upper and lower molds in the mold in the approaching and separating directions.
Further equipped with a terminal crimping device. The terminal crimping device according to claim 6.
The input portion includes two rod-shaped handle portions formed so as to be able to be grasped by an operator and to be opened and closed.
The conversion unit is a terminal crimping device that converts the opening / closing operation of the two rod-shaped handle portions into relative movement of the upper mold and the lower mold in the approaching and separating directions. The terminal crimping device according to any one of claims 3 to 5.
A terminal crimping device further comprising a drive unit for moving the upper mold and the lower mold in the mold toward and away from each other. The terminal crimping device according to claim 4 or 5.
Further provided with a drive unit for moving the upper mold and the lower mold in the mold toward and apart from each other.
A terminal crimping device in which the support jig mounting portion is provided so as to be slidable in the longitudinal direction with respect to the upper mold.

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