JP7582902B2 - Wire driving device - Google Patents

Description

The present invention relates to an electric wire driving device.

For example, in the crimping process in which a terminal is crimped to the end of an electric wire, the end of the electric wire is held by a jig. This jig has an electric wire holding groove, and the end of the electric wire is held by the jig by driving the end of the electric wire into the electric wire holding groove of the jig.

Patent document 1 discloses a device that uses a blade to push and hold an electric wire against a clip attached to an endless belt.

Japanese Patent Application Publication No. 5-242945

However, in the subsequent process of crimping the terminal onto the electric wire, precision is required in terms of the height and tip position of the electric wire held by the clip.

However, with the above device, it is difficult to position the tip of the electric wire and hold it in the clip, and there is a risk that the accuracy of crimping the terminal to the electric wire will decrease in the subsequent terminal crimping process. In addition, since the electric wires are pushed into the clip one by one, it is desirable to improve efficiency.

The present invention was made in consideration of the above-mentioned circumstances, and its purpose is to provide an electric wire driving device that can hold an electric wire in a jig accurately and efficiently.

In order to achieve the above-mentioned object, the electric wire driving device according to the present invention is characterized by the following (1) to (3).
(1) An electric wire driving device that drives an electric wire into a plurality of electric wire holding grooves of a jig that are formed at intervals along a longitudinal direction to hold the electric wire, the jig comprising:
a positioning member disposed on a side of the jig for positioning the ends of the plurality of electric wires and disposing them on the electric wire holding groove;
a driving member that moves toward the jig to drive the plurality of electric wires positioned by the positioning member into the electric wire holding grooves of the jig and hold them;
Equipped with
The positioning member is disposed on the side of the jig that is shifted in the extension direction of the electric wire holding groove relative to the driving member during movement of the driving member in the driving direction of the plurality of electric wires toward the jig, and does not face the driving member in the driving direction.
The wire driving device is characterized by the above.

(2) The driving member starts moving in the driving direction toward the jig from a position spaced apart from the plurality of electric wires positioned by the positioning member, and during the movement in the driving direction, the driving member comes into contact with the plurality of electric wires and then pushes the plurality of electric wires in the driving direction to drive the plurality of electric wires into the electric wire holding grooves;
the positioning member does not move from when the driving member starts to move in the driving direction until the driving member comes into contact with the plurality of electric wires, and moves in the driving direction in synchronization with the driving member after the driving member comes into contact with the plurality of electric wires .
4. The wire driving device according to claim 1,

(3) The positioning member includes a sensor that detects a tip position of each of the electric wires.
3. The wire driving device according to claim 1, wherein the wire driving device is a

According to the electric wire driving device configured as in (1) above, multiple electric wires whose tip positions have been aligned by the positioning member can be driven simultaneously into the electric wire holding grooves of the jig by the driving member, and can be held in a state where the driving height is uniform. In addition, since multiple electric wires can be driven and held in the jig simultaneously, the work time required to drive the electric wires can be significantly reduced. In other words, the electric wires can be held in the jig precisely and efficiently.

According to the electric wire driving device configured as in (2) above, the positioning member moves in the driving direction of the multiple electric wires in synchronization with the driving member. Therefore, multiple electric wires can be driven into the jig while maintaining the tip position, and the electric wires can be held in the jig with higher precision.

According to the electric wire driving device configured as in (3) above, by detecting the tip position of each electric wire with a sensor, it is possible to quickly determine whether the tips of multiple electric wires are aligned. This allows the tips of multiple electric wires to be positioned in a more highly aligned state.

The present invention provides a wire driving device that can hold a wire in a jig accurately and efficiently.

The present invention has been briefly described above. The details of the present invention will become clearer by reading the following description of the embodiment of the invention (hereinafter referred to as "embodiment") with reference to the attached drawings.

FIG. 1 is a schematic side view illustrating the configuration of an electric wire driving device according to the present embodiment. FIG. 2 is a perspective view of the wire driving device at a position where the wire is driven in. FIG. FIG. 3 is a perspective view illustrating the driving member. FIG. 4 is a process diagram for explaining the operation of driving the electric wires. FIG. 5 is a process diagram for explaining the operation of driving the electric wires. FIG. 6 is a process diagram for explaining the operation of driving the electric wires. FIG. 7 is a process diagram illustrating the wire driving operation. FIG. 8 is a process diagram illustrating the wire driving operation.

Specific embodiments of the present invention are described below with reference to the drawings.

Figure 1 is a schematic side view illustrating the configuration of the electric wire driving device according to this embodiment. Figure 2 is a perspective view of the electric wire driving position in the electric wire driving device.

As shown in FIG. 1, the electric wire driving device 100 according to this embodiment includes a jig holding mechanism 10, an electric wire positioning mechanism 30, and an electric wire driving mechanism 60.

The jig holding mechanism 10 includes a moving table 11, to which a jig 12 is attached and detached. As shown in FIG. 2, the jig 12 is formed in an elongated shape, and multiple electric wire holding portions 13 are arranged. An electric wire holding groove 14 that is open on the upper side is formed in the electric wire holding portion 13 of the jig 12, and the electric wire 1 is driven into the electric wire holding groove 14 from the upper side and held therein.

The moving table 11 also has an electric wire distribution section 17 with multiple electric wire distribution rods 16 standing upright. This electric wire distribution section 17 is provided along the jig 12 attached to the moving table 11, and the space between the pair of electric wire distribution rods 16 forms a distribution space 18. The electric wire 1 that is driven into the electric wire holding groove 14 in the electric wire holding section 13 of the jig 12 is inserted into this electric wire distribution space 18.

The moving table 11 on which the jig 12 is attached and detached is supported on a base 19 and is movable along the longitudinal direction of the jig 12. The jig holding mechanism 10 is provided with a moving mechanism (not shown) driven by, for example, a stepping motor, and the moving table 11 is moved by this moving mechanism. The moving table 11 moved by this moving mechanism is moved for each of the four wire holding parts 13 of the jig 12 to be attached.

The electric wire positioning mechanism 30 has a lifting mechanism 31 and an advance/retract mechanism 32. The advance/retract mechanism 32 is supported by the lifting mechanism 31 and is raised and lowered by the lifting mechanism 31. The advance/retract mechanism 32 has a positioning part 33, which is advanced and retracted relative to the jig 12 attached to the jig holding mechanism 10.

The positioning portion 33 has a positioning member 35. As shown in FIG. 2, the positioning member 35 has four electric wire insertion holes 36. The positioning member 35 is composed of a lower plate 37 and an upper plate 38, and the electric wire insertion holes 36 are provided between the lower plate 37 and the upper plate 38. The lower plate 37 has a protruding portion 40 that protrudes from the upper plate 38, and a tapered groove 41 that gradually narrows toward the electric wire insertion hole 36 is formed in the protruding portion 40.

The front side of the positioning member 35, which has the protruding portion 40 of the lower plate 37, is the wire insertion side, and the wire 1 can be inserted from this wire insertion side into the wire insertion hole 36. When inserting the wire 1 into the wire insertion hole 36, the wire 1 is guided by the tapered groove 41 of the protruding portion 40 and smoothly led into the wire insertion hole 36.

Four proximity sensors (sensors) 42 are provided on the rear side of the positioning member 35, opposite the wire insertion side. These proximity sensors 42 are each disposed at the opening of the wire insertion hole 36, and detect the wire 1 inserted into the wire insertion hole 36. In other words, these proximity sensors 42 can detect the presence or absence of the wire 1 in the wire insertion hole 36.

A pair of holes 45 are formed in the lower plate 37 and the upper plate 38 constituting the positioning member 35. These holes 45 are connected to the electric wire insertion hole 36. The positioning part 33 is provided with a pair of pressing rods 46 at positions corresponding to the holes 45 formed in the lower plate 37 and the upper plate 38 on the lower and upper sides of the positioning member 35. These pressing rods 46 are made of an elastic material such as urethane rubber, and can be advanced and retreated by a cylinder 47. The pressing rod 46 provided below the positioning member 35 is inserted and removed from the hole 45 formed in the lower plate 37 of the positioning member 35 by being advanced and retreated by the cylinder 47. When the pressing rod 46 is inserted into the hole 45 of the lower plate 37, the electric wire 1 inserted in the electric wire insertion hole 36 is clamped and held between the pressing rod 46 and the upper plate 38. A pressure rod 46 provided above the positioning member 35 is advanced and retreated by a cylinder 47, and is inserted and removed from a hole 45 formed in the upper plate 38 of the positioning member 35. When the pressure rod 46 is inserted into the hole 45 of the upper plate 38, the electric wire 1 inserted in the electric wire insertion hole 36 is clamped and held between the pressure rod 46 and the lower plate 37.

In the electric wire positioning mechanism 30, the lifting mechanism 31 is provided with an upward position detection sensor 51 and a downward position detection sensor 52, and the advance/retract mechanism 32 is provided with an advance position detection sensor 53 and a retreat position detection sensor 54. The upward position detection sensor 51 detects that the advance/retract mechanism 32 has reached the upward position, and the descending position detection sensor 52 detects that the advance/retract mechanism 32 has reached the descending position. The forward position detection sensor 53 detects that the positioning unit 33 has reached the forward position on the jig holding mechanism 10 side, and the retreat position detection sensor 54 detects that the positioning unit 33 has left the jig holding mechanism 10 and reached the retreat position.

The wire driving mechanism 60 is equipped with a lifting cylinder 62 that moves a rod 61 forward and backward. This lifting cylinder 62 is supported by a frame 64 fixed to a support 63. The lifting cylinder 62 is positioned above a jig 12 that is attached to a moving table 11 of the jig holding mechanism 10, and the rod 61 extends toward the jig 12.

FIG. 3 is a perspective view illustrating the driving member.
As shown in Fig. 3, a driving member 65 is fixed to the tip of the rod 61 of the lifting cylinder 62. The driving member 65 has a fixed plate portion 66 fixed to the end of the rod 61, and a pair of pressing side plate portions 67 extending downward from both edges of the fixed plate portion 66. The pressing side plate portions 67 are disposed at a distance slightly wider than the width of the jig 12. The driving member 65 also has a plurality of partition walls 68 formed at intervals between the pressing side plate portions 67. As a result, the driving member 65 has a plurality of recesses 69 into which the electric wire holding portions 13 of the jig 12 can be fitted.

The electric wire driving mechanism 60 is provided with a lower limit position detection sensor 71, an intermediate position detection sensor 72, and an upper limit position detection sensor 73 on the lifting cylinder 62, which detect the height position of the driving member 65. The lower limit position detection sensor 71 detects that the driving member 65 has descended and reached a driving position where the electric wire 1 is driven into the jig 12. The intermediate position detection sensor 72 detects that the driving member 65 has reached an intermediate position directly above the jig 12. The upper limit position detection sensor 73 detects that the driving member 65 has ascended and reached a standby position above the jig 12.

The wire driving device 100 having the above configuration includes a control unit 80, which controls the operation of the jig holding mechanism 10, the wire positioning mechanism 30, and the wire driving mechanism 60. The control unit 80 is also connected to the proximity sensor 42, the raised position detection sensor 51, the lowered position detection sensor 52, the forward position detection sensor 53, and the retreated position detection sensor 54 of the wire positioning mechanism 30. The control unit 80 is also connected to the lower limit position detection sensor 71, the intermediate position detection sensor 72, and the upper limit position detection sensor 73 of the wire driving mechanism 60. Based on the detection signals from these sensors, the control unit 80 controls the operation of the jig holding mechanism 10, the wire positioning mechanism 30, and the wire driving mechanism 60, and drives and holds the wire 1 in the wire holding portion 13 of the jig 12.

Proximity sensors can be used as the upward position detection sensor 51, downward position detection sensor 52, forward position detection sensor 53, backward position detection sensor 54, lower limit position detection sensor 71, intermediate position detection sensor 72, and upper limit position detection sensor 73. Note that as these sensors, cylinder sensors in which a sensor that turns on/off by the magnetic force of a piston having a magnet is provided in a cylinder may also be used.

Next, the operation of driving the electric wire 1 into the jig 12 by the electric wire driving device 100 will be described.
Here, a case will be illustrated in which a pair of electric wires 1 is a shielded type twisted wire covered with an outer sheath, and the electric wires 1 exposed from both ends are held by a jig 12.
4 to 8 are work process diagrams each explaining the work of driving in the electric wires.

For the wire driving device 100 in a standby state, the jig 12 is attached to the moving table 11 of the jig holding mechanism unit 10 (see Figure 1).

As shown in FIG. 4, a pair of electric wires 1 on one end of the twisted wire are inserted into the electric wire insertion hole 36 of the positioning member 35 until their tips abut. When the electric wires 1 are inserted into the electric wire insertion hole 36 and the proximity sensor 42 detects the electric wires 1, the cylinder 47 inserts the pressing rod 46 into the hole 45 of the positioning member 35, and the electric wires 1 inserted into the electric wire insertion hole 36 are held. Similarly, a pair of electric wires 1 on the other end of the twisted wire are inserted into the electric wire insertion hole 36 of the positioning member 35 until their tips abut. Then, the electric wires 1 inserted into the electric wire insertion hole 36 are detected by the proximity sensor 42, and the cylinder 47 inserts the pressing rod 46 into the hole 45 of the positioning member 35, and the electric wires 1 inserted into the electric wire insertion hole 36 are held.

When the four electric wires 1 are inserted into the electric wire insertion holes 36 of the positioning member 35 and the electric wires 1 are detected by all the proximity sensors 42, the start button (not shown) is pressed to start the driving operation. Note that the driving operation may be automatically started by the control unit 80 when the electric wires 1 are detected by all the proximity sensors 42.

As shown in FIG. 5, when the driving operation is started, the lifting cylinder 62 of the electric wire driving mechanism 60 is driven, and based on the detection signal from the intermediate position detection sensor 72, the driving member 65 is positioned at the intermediate position directly above the jig 12, and the driving member 65 is brought into contact with the electric wire 1.

As shown in FIG. 6, the lifting cylinder 62 of the electric wire driving mechanism 60 and the lifting mechanism 31 of the electric wire positioning mechanism 30 are driven in synchronous with each other, so that the driving member 65 descends toward the driving position, which is the lowest position, and the positioning member 35 descends together with the driving member 65. At this time, the lifting cylinder 62 and the lifting mechanism 31 descend to the lowest position detected by the lowered position detection sensor 52 and the lowered position detection sensor 71.

Then, the driving member 65 presses the electric wire 1 down toward the jig 12, and the electric wire holding portion 13 of the jig 12 fits into the recess 69 of the driving member 65. As a result, each electric wire 1 is driven to a specified height position into the electric wire holding groove 14 of the electric wire holding portion 13 of the jig 12 with the tip position positioned and aligned by the positioning member 35.

The cylinder 47 is driven to pull the pressure rod 46 out of the hole 45 in the positioning member 35, and the electric wire 1 is released from the positioning member 35.

In this state, as shown in FIG. 7, the advance/retract mechanism 32 of the electric wire positioning mechanism 30 is driven until it is detected by the retracted position detection sensor 54, so that the positioning member 35 moves to the retracted position.

As shown in FIG. 8, the lifting cylinder 62 of the electric wire driving mechanism 60 is driven until it is detected by the upper limit position detection sensor 73, and the driving member 65 is positioned in the standby position, which is the upper limit position. Also, the lifting mechanism 31 of the electric wire positioning mechanism 30 is driven until it is detected by the raised position detection sensor 51, and the positioning member 35 is positioned in the raised position.

Furthermore, as the moving table 11 of the jig holding mechanism 10 moves, the four wire holding parts 13 holding the wires 1 in the jig 12 move out of the driving work position, and the four adjacent wire holding parts 13 are positioned in the driving work position.

The advance/retract mechanism 32 of the electric wire positioning mechanism 30 is driven to position the positioning member 35 in the forward position, and the machine is in a standby state for the next operation of driving the electric wire 1 (see FIG. 1).

The above wire driving operation is repeated until the specified number of wires 1 are driven into the jig 12, after which the jig 12 is removed from the moving table 11 of the jig holding mechanism unit 10.

As described above, according to the electric wire driving device 100 of this embodiment, multiple electric wires 1 whose tip positions have been aligned by the positioning member 35 can be driven simultaneously into the electric wire holding groove 14 of the jig 12 by the driving member 65, and can be held in a state where the driving height is uniform. In addition, since multiple electric wires 1 can be driven and held in the jig 12 simultaneously, the work time for driving the electric wires 1 can be significantly reduced. In other words, the electric wires 1 can be held in the jig 12 precisely and efficiently.

In addition, the positioning member 35 moves in the driving direction of the multiple electric wires 1 in synchronization with the driving member 65. Therefore, the multiple electric wires 1 can be driven into the jig 12 while maintaining the tip position, and the electric wires 1 can be held with higher precision relative to the jig 12.

In addition, by detecting the tip position of each electric wire 1 with the proximity sensor 42, it is possible to quickly determine whether the tips of the multiple electric wires 1 are aligned. This allows the tips of the multiple electric wires 1 to be positioned in a more highly aligned state.

In the above embodiment, a pair of wires 1 each exposed at both ends of a twisted wire is driven into the jig 12 at the same time, but the type of wire driven into the jig 12 is not limited to a twisted wire.

The present invention is not limited to the above-described embodiment, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary as long as they can achieve the present invention, and are not limited.

Here, the features of the electric wire driving device according to the embodiment of the present invention described above will be briefly summarized and listed below in [1] to [3].
[1] An electric wire driving device (100) for driving an electric wire (1) into a plurality of electric wire holding grooves (14) of a jig (12) formed at intervals along a longitudinal direction thereof, the jig comprising:
a positioning member (35) arranged on the side of the jig (12) for positioning the ends of the multiple electric wires (1) and arranging them on the electric wire holding grooves (14);
a driving member (65) that moves toward the jig (12) to drive the plurality of electric wires (1) positioned by the positioning member (35) into the electric wire holding grooves (14) of the jig (12) and hold them;
Equipped with
The wire driving device is characterized by the above.

[2] The positioning member (35) moves in a driving direction of the plurality of electric wires (1) in synchronization with the driving member (65).
The wire driving device according to [1] above.

[3] The positioning member (35) includes a sensor (proximity sensor 42) for detecting the tip position of each of the electric wires (1).
The wire driving device according to the above [1] or [2],

REFERENCE SIGNS LIST 1 Electric wire 10 Jig holding mechanism 11 Moving table 12 Jig 13 Electric wire holding portion 14 Electric wire holding groove 31 Lifting mechanism 32 Advance/retreat mechanism 33 Positioning portion 35 Positioning member 36 Electric wire insertion hole 41 Tapered groove 42 Proximity sensor (sensor)
46 Pressing rod 47 Cylinder 51 Ascending position detection sensor 52 Descending position detection sensor 53 Forward position detection sensor 54 Retracted position detection sensor 62 Lifting cylinder 65 Driving member 67 Pressing side plate portion 68 Partition wall 69 Recess 71 Lower limit position detection sensor 72 Intermediate position detection sensor 73 Upper limit position detection sensor 80 Control unit 100 Electric wire driving device

Claims (3)

A wire driving device that drives an electric wire into a wire holding groove of a jig having a plurality of wire holding grooves formed at intervals along a longitudinal direction thereof,
a positioning member disposed on a side of the jig for positioning the ends of the plurality of electric wires and disposing them on the electric wire holding groove;
a driving member that moves toward the jig to drive the plurality of electric wires positioned by the positioning member into the electric wire holding grooves of the jig and hold them;
Equipped with
The positioning member is disposed on the side of the jig that is shifted in the extension direction of the electric wire holding groove relative to the driving member during movement of the driving member in the driving direction of the plurality of electric wires toward the jig, and does not face the driving member in the driving direction.
The wire driving device is characterized by the above. the driving member starts moving in the driving direction toward the jig from a position spaced apart from the plurality of electric wires positioned by the positioning member, and during the movement in the driving direction, the driving member comes into contact with the plurality of electric wires and then pushes the plurality of electric wires in the driving direction to drive them into the electric wire holding grooves;
the positioning member does not move from when the driving member starts to move in the driving direction until the driving member comes into contact with the plurality of electric wires, and moves in the driving direction in synchronization with the driving member after the driving member comes into contact with the plurality of electric wires .
2. The wire driving device according to claim 1. The positioning member includes a sensor for detecting a tip position of each of the electric wires.
3. The wire driving device according to claim 1 or 2.

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