JP3023866B2 - Inversion and transfer method and device for wire with terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of reversing and transferring a terminal-equipped wire from a wire clip to another wire clip while reversing the wire with a predetermined angle in an automatic terminal crimping and insertion device. , And an apparatus for performing the method.

[0002]

2. Description of the Related Art A technique relating to an automatic terminal crimping / inserting device for fixing terminals to both ends of an electric wire and inserting the crimped terminals into a terminal accommodating chamber of a connector housing is disclosed in JP-A-5-2494.
There is a technique described in Japanese Patent Application Laid-Open No. 5 (1999) -2005. FIG. 10 is a schematic view of a transfer device of the automatic terminal crimping / inserting device. A second wire transfer device 2 is disposed downstream of the first wire transfer device 1.

[0003] In the first electric wire transport device 1, a plurality of electric wire clips 4 are provided at a predetermined pitch on two belt conveyors 3, and outside the two belt conveyors 3, a tip cutter 5 and a terminal are provided. Crimping machine 6, wire chuck 8 (Fig. 11
(A) is provided. The tip cutting machine 5 is a device for cutting to align the tip positions of the wires 9, the terminal crimping machine 6 is a device for crimping the terminals 10 to both ends of the cut wire 9, and the terminal reversing device 7 is
This is a device for inverting the direction of the terminal 10 by twisting the electric wire 9 by 180 degrees.

[0004] Transfer hands 11 are provided above the discharge ends of the two belt conveyors 3, respectively. The transfer hand 11 is movable vertically and horizontally, and is provided with a pair of openable and closable gripping claws 12 and a blade 13 projecting between the gripping claws 12 (see FIG. 12).

[0005] The second wire conveyor 2 has two belt conveyors 1 having a narrower interval than the two belt conveyors 3.
4, a plurality of electric wire clips 15 are provided at a predetermined pitch smaller than the arrangement interval of the electric wire clips 4. A connector housing 22 is positioned outside the two belt conveyors 3 of the second electric wire transport device 2.

The structure of the electric wire clip 4 is the electric wire clip 15
Therefore, if the electric wire clip 15 is described,
Holder 1 fixed to belt conveyor 14 with pins 28
Two pins 17 penetrate through 6, and the lower ends of the pair of holding arms 18 are pivotally attached to the pins 17, respectively. The pair of holding arms 18 that can be opened and closed are urged in a closing direction by a leaf spring (not shown). On the opposing surfaces of the pair of holding arms 18, an insertion inclined surface 19 is formed at the upper end, and an electric wire holding portion 20 is formed below the insertion inclined surface 19 (see FIG. 12).

When the connector housing 22 is a multi-pole connector housing having two upper and lower terminal receiving chambers, the upper and lower terminal receiving chambers are symmetrical. The wire 9 with one terminal 10 of the inserted terminals 10 is
The terminal 10 is turned upside down by 80 degrees. The wire 9 is transferred from the terminal reversing device 7 to the wire clip 15 of the second wire transport device 2 by the transfer hand 11, and when the wire clip 15 reaches the connector housing 22,
The terminal 10 is inserted into the connector housing 22 and locked.

Next, an operation of transferring the electric wire 9 twisted by 180 degrees by the terminal reversing device 7 from the first transfer device 1 to the second transfer device 2 by the transfer hand 11 is shown in FIG.
This will be described with reference to (A) to (E). The belt conveyor 3 rotates, and the wire clip 4 holding the end of the wire 9 with the terminal 10 moves rightward in FIG. 11A. When the pair of front and rear wire clips 4 reach the terminal reversing device 7 with the wire chuck 8 opened (FIG. 11A)
When the electric wire chuck 8 is closed to clamp the electric wire 9 and the terminal reversing device 7 rises, the electric wire 9 held by the electric wire clip 4 having a weak clamping force is transferred to the terminal reversing device 7 (see FIG. 4). FIG. 11B).

Next, the terminal reversing device 7 rotates 180 degrees,
The gripper 12 is moved below the opened transfer hand 11.
Next, the transfer hand 11 is lowered to the position of the terminal reversing device 7, the gripping claws 12 are closed, and the wire 9 is gripped (FIG. 11).
(C)). At this time, the tip of the blade 13 is
Is in contact with

Next, the wire chuck 8 of the terminal reversing device 7 is opened, and then the transfer hand 11 is raised (FIG. 11D).
Therefore, the electric wire 9 is transferred to the transfer hand 11. The transfer hand 11 moves horizontally and reaches above the electric wire clip 15 of the belt conveyor 14 (see FIG. 11E). Next, the transfer hand 11 descends, and the electric wire 9 is pushed into the electric wire holding portion 20 of the holding arms 18 by the blade 13 (see FIG. 12).

Next, the gripper 12 is opened and the transfer hand 11 is opened.
Rises, moves horizontally, and returns to the old position shown in FIG. Thus, one cycle of the transfer operation of the electric wire 9 from the first transport device 1 to the second transport device 2 is completed. 1
In the case of the electric wire 9 which is not twisted by 80 degrees, the terminal reversing device 7
Does not rotate, but other transfer operations are the same as described above.

[0012]

In the transfer apparatus described above, the transfer of the wire 9 with the terminal 10 from the wire clip 18 to the wire clip 18 is performed via the terminal reversing device 7 and the transfer hand 11. Therefore, the operation is complicated and the time required for transfer is long. The pair of gripping claws 12 of the transfer hand 11 have a structure capable of rotating in the direction of arrow R in FIG.
The gripper 12 gripping the wire 9 with the terminal 10 is rotated by 180 degrees (see FIG. 14A), and then the wire clip 15 is pushed open by the blade 13 to transfer the wire 9 with the terminal 10 to the wire clip 15. This eliminates the need for the terminal reversing device 7 on the belt conveyor 14 and simplifies the transfer operation.

However, the orientation of the terminal accommodating chamber of the connector housing 22 is not limited to 0 ° and 180 °, but may be ± 90 °. Therefore, as shown in FIG.
Is rotated by 90 degrees, the gripping claws 12
14 and the wire clip 15 (FIG. 14).
(B)), the blade 13 is moved and the electric wire clip 1 is moved.
5 cannot be pushed open and the electric wire 9 cannot be inserted into the electric wire clip 15. An object of the present invention is to solve such a problem.

[0014]

In order to achieve the above object, a method for reversing and transferring an electric wire with a terminal according to the present invention comprises the steps of: holding a wire with a terminal between a pair of holding arms of a wire clip; A transfer hand having a terminal and a blade, approaching the electric wire clip for holding the electric wire with a terminal, opening the holding arm by the pressing force of the blade, and moving the pair of gripping claws to a position where the electric wire can be gripped. And close,
An electric wire with terminals is transferred to the transfer hand, and then a pair of gripping claws are rotated by a predetermined angle (angles include ± 90 degrees, 180 degrees, and 0 degrees), and an electric wire clip that does not pinch the electric wires with terminals. Approach the transfer hand, open the holding arm by the pressing force of the blade, move the pair of gripping claws to insert the terminal-equipped wire into the holding arm, and then retract the blade. The holding arm is closed, the electric wire with the terminal is transferred to the holding arm, the gripping claw is opened, and after returning the gripping claw to the old angle, the transfer hand is moved to the old position.

An apparatus used for the above-described method of reversing and transferring an electric wire comprises an electric wire clip having a pair of holding arms urged in a closing direction and having an inclined surface for insertion provided at an end thereof, and moving toward the end. An openable and rotatable blade, a pair of gripping claws provided with an opening through which the blade can pass, and a cutout recess intersecting the opening. And a transfer hand that can move in the separating direction.

The opening allows the blade to pass when the rotation angle of the pair of gripping claws is 180 degrees and 0 degree, and the notch recess allows the rotation angle of the pair of gripping claws to be ±.
The blade can be allowed to pass at 90 degrees.

[0017]

Function: Inversion of the terminal-attached electric wire constructed as described above,
A method of transferring the terminal-equipped electric wire by the transfer device will be described. Move closer to the tip of the arm. Next, the blade is pressed against the tip of the holding arm, the holding arm is opened, the pair of gripping claws are moved to a position where the electric wire with the terminal can be grasped, closed, the electric wire with the terminal is grasped, and then separated from the holding arm. I do.
Thus, the electric wire with terminal is transferred to the transfer hand from the holding arm.

The pair of gripping claws are rotated by a predetermined angle (at this time, the blade can pass through the opening or the cutout), and the transfer hand is moved to the tip of the holding arm of the wire clip to which the wire is to be transferred. approach. The blade is pressed against the tip of the holding arm to open the holding arm, and the pair of gripping claws are moved to insert the electric wire with terminal into the holding arm. Next, the pair of gripping claws are opened to complete the transfer of the electric wire with the terminal, the pair of gripping claws are returned to the old angle, and the transfer hand is moved to the old position.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a main part of a transfer hand 25 and an electric wire clip 15, and FIG. FIG. 3 is a side view of the transfer hand 25. FIG. In FIG. 3, two slide rails 28 are fixed to the upper surface of a gantry 27 installed in parallel with the belt conveyors 3 and 14. A nut 32 screwed to a screw shaft 31 of a driving device 30 provided on the gantry 27 is fixed to a main body 29 slidably provided on the slide rail 28. 29 moves from the end of the belt conveyor 3 to the end of the belt conveyor 14.

A rotary driving device 33 such as a pulse motor is fixed to a rear wall surface (left wall surface in FIG. 3) of the elevating member 50 which is provided to be vertically movable with respect to the main body 29, and an output shaft 33a of the rotary driving device 33. , A timing pulley 34 is fixed (see FIGS. 1 and 3). Bearings 36 are fitted to both ends of a horizontal hole 35 passing through the elevating member 50, and a shaft 37 of the transfer hand 25 is rotatably supported on the bearing 36. A pulley support portion 38 and a disk support portion 39 are provided on the left side of the shaft portion 37 of the transfer hand 25 so as to extend therefrom.
A timing belt 41 is wound around the timing pulleys 34 and 40.

On the right side of the shaft portion 36 of the transfer hand 25, an opening / closing device 42 for opening and closing the gripping claws 26 is provided. At the approximate center in the width direction of the pair of gripping claws 26, a rectangular opening 43 penetrating vertically in FIGS. 1 and 2 is provided. The size of the width L ₁ and the length L ₂ of the opening 43 is determined by the pair of gripping claws 26.
Is dimensioned so that a blade 45 that moves up and down by a driving device 44 such as a cylinder can pass through when the is closed (see FIG. 2). The gripping claw 26 is provided with a claw 47 extending downward and forward and rearward of the opening 43.

At the lower portion of the gripping claw 26, a notch concave portion 46 that crosses the opening 43 at substantially right angles is formed. The length L ₃ of the cutout recess 46 is substantially equal to the length L ₂ of the opening 43, and the length L ₄ in the up-down direction allows the blade 45 that moves up and down to pass when the shaft 36 rotates 90 degrees. Dimensions (see FIG. 2).

The shape of the wire clips 15 and 4 is the same as that of the conventional example, and a pin 17 for pivotally connecting the lower ends of the pair of holding arms 16 is provided on a holder 16 provided on the belt conveyors 14 and 3. Then, an insertion inclined surface 19 is formed on the inner surface of the distal end portion of the holding arm 16. The tip of the blade 45 is formed in a forked shape, and when the blade 45 descends, the tip of the forked presses the insertion inclined surface 19 and opens the holding arm 16 as in the conventional example.

The disk support 39 has slits (or small holes)
Are fixed to each other, and a sensor 49 for detecting a slit (or a small hole) of the disk 48 is provided at a lower end portion of the elevating member 50. This sensor 49 is provided for the gripper 2
6 for detecting the rotation angles (± 90 degrees, 180 degrees, 0 degrees).

Next, the method of inverting and transferring the electric wire with terminals provided as described above, using a transfer device, will be described with reference to FIGS. It will be described in the order of delivery. The pair of gripping claws 26 are in a standby state in which the opening 43 faces up and down and the blade 45 can pass through the opening 43, and is stopped at a standby position above the wire clip 4 of the belt conveyor 3.

In order to transfer the electric wire 9 with the terminal 10 held between the electric wire clips 4 of the belt conveyor 3 to the transfer hand 25, first, the transfer in the standby state by the lateral movement of the main body 29 and the lowering of the elevating member 50. The mounting hand 25 is moved closer to the tip of the holding arm 18 holding the electric wire 9 with the terminal 10 (FIG. 4).
(A)). Next, the blade 45 is driven by the driving device 44.
Is lowered and pressed against the insertion inclined surface 19 of the holding arm 18 to open the holding arm 18 (see FIG. 4B).

The lifting member 50 lowers the pair of gripping claws 26 to the position where the electric wires 9 are received (see FIG. 5A). When the pair of gripping claws 26 are raised by the member 50 (see FIG. 5B), and then the blade 45 is raised, the holding arm 18 is closed (see FIG. 5C). Thus, the electric wire 9 with the terminal 10 is transferred from the holding arm 18 to the transfer hand 25.

Next, the terminal 1 gripped by the transfer hand 25
The operation of transferring the 0-attached electric wire 9 to the holding arm 18 of the electric wire clip 15 without inverting (while the rotation angle is 0 degree) will be described. While holding the transfer hand 25 in the same manner as in the standby state, with the opening 43 facing up and down,
(See FIG. 6A). Next, the blade 45 is lowered to push the insertion inclined surface 19 of the holding arm 18 to open the holding arm 18 (see FIG. 6B).

The pair of gripping claws 26 are lowered to the wire transfer position (see FIG. 6C), and the blade 45 is raised to close the pair of holding arms 18 (see FIG. 6D). Next, when the pair of gripping claws 26 are opened and raised, the electric wire 9 with the terminal 10 is transferred to the holding arm 18 of the electric wire clip 15 (FIG. 6).
(E)).

When the electric wire 9 with the terminal 10 is turned 180 degrees and transferred to the holding arm 18 of the electric wire clip 15, the opening 43 of the gripping claw 26 after the turning is vertically oriented. It can be transferred in the same way as when it is not. That is, the transfer hand 25 that has been inverted by 180 degrees is made to approach the holding arm 18 (see FIG. 7A), the blade 45 is lowered to open the holding arm 18 (see FIG. 7B), and the gripper 26 is released. Descend to the wire delivery position (see FIG. 7 (C)),
The blade 45 is raised to close the pair of holding arms 18 (see FIG. 6D). When the orientation of the gripping claws 26 is returned to the standby state after raising the pair of gripping claws 26, the state shown in FIG.

When the terminal accommodating chamber of the connector housing is in a posture rotated by 90 degrees, the electric wire 9 with the terminal 10 is
It is turned over by 0 degrees and transferred to the holding arm 18 of the wire clip 15. That is, the transfer hand 25 turned 90 degrees is approached to the holding arm 18 (see FIG. 8A), the blade 45 is lowered to open the holding arm 18 (see FIG. 8B),
6 is lowered to the electric wire transfer position (see FIG. 8C), and the blade 45 is raised to close the pair of holding arms 18 (see FIG. 8D). Then, after raising the pair of gripping claws 26, the orientation of the gripping claws 26 is returned to the standby state,
The state shown in FIG.

When the electric wire 9 with the terminal 10 is turned 90 degrees in the opposite direction and transferred to the holding arm 18 of the wire clip 15, the transfer hand 25 is moved closer to the holding arm 18 (FIG. 9).
(See FIG. 9A), the blade 45 is lowered to open the holding arm 18 (see FIG. 9B), the gripper 26 is lowered to the wire transfer position (see FIG. 9C), and the blade 45 is raised. When the pair of gripping claws 26 are closed (see FIG. 9D) and the pair of gripping claws 26 are lifted and the orientation of the gripping claws 26 is returned to the standby state, the state shown in FIG. 6E is obtained. .

[0033]

Since the present invention is configured as described above, when the electric wire with terminals is inverted from the electric wire clip and transferred to the electric wire clip, the electric wire with the terminal is directly passed without passing through the conventional terminal inverting device. Can be inverted and transferred by the transfer hand. Further, even if the reversing angle of the terminal-equipped electric wire includes ± 90 ° in addition to 0 ° and 180 °, the reversing hand can be used by the transfer hand.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a transfer hand and an electric wire clip.

FIG. 2 is a perspective view showing the shape of a pair of gripping claws.

FIG. 3 is a side view of the transfer hand.

FIGS. 4 (A) and 4 (B) are front views of main parts for explaining a first half operation at the time of receiving an electric wire.

5 (A) to 5 (C) are main part front views for explaining the latter half operation when receiving an electric wire.

FIGS. 6A to 6E are main part front views for explaining a transfer operation without inversion.

FIGS. 7A to 7D are front views of a main part illustrating a 180-degree reverse transfer operation.

8 (A) to 8 (D) are front views of main parts for explaining a 90-degree reversal transfer operation. FIG.

FIGS. 9A to 9D are main part front views for explaining the 90 ° reverse transfer operation in the opposite direction.

FIG. 10 is a perspective view of an automatic terminal crimping / inserting device provided with the terminal reversing / transferring device of the present invention.

FIGS. 11A to 11E are explanatory views of a conventional transfer operation.

FIG. 12 is a schematic diagram illustrating electric wire transfer between a transfer hand and an electric wire clip.

FIG. 13 is a perspective view (schematic diagram) illustrating a transfer hand having an inversion function.

FIG. 14 is a schematic diagram illustrating a problem of ± 90 ° reverse transfer in the transfer hand of FIG. 13;

[Explanation of symbols]

 4, 15 Wire clip 9 Wire 10 Terminal 13 Blade 18 Clamping arm 19 Insertion inclined surface 25 Transfer hand 26 Gripping claw 29 Main body 30 Drive device 33 Rotation drive device 42 Opening / closing device 43 Opening 44 Drive device 45 Blade 46 Notch recess

Claims (3)

(57) [Claims] An electric wire with a terminal is sandwiched between a pair of clamping arms of an electric wire clip, a transfer hand having a pair of gripping claws and a blade is brought close to the electric wire clip which clamps the electric wire with a terminal, and Opening the holding arm by pressing force,
The pair of gripping claws are moved to a position where the wire can be gripped and closed, and the terminal-equipped wire is transferred to the transfer hand. Next, the pair of gripping claws are set at a predetermined angle (the angle is ± 90 degrees, 18
(Including 0 °, 0 °), the transfer hand approaches the wire clip that does not pinch the wire with the terminal, the holding arm is opened by the pressing force of the blade, and the pair of gripping claws are moved. Insert the terminal-equipped wire into the holding arm, then retract the blade to close the holding arm, transfer the terminal-equipped wire to the holding arm, open the gripping claw, and release the gripping claw. A method of reversing and transferring an electric wire with terminals, wherein the transfer hand is moved to an old position after returning to a previous position. 2. An electric wire clip provided with an insertion inclined surface at the tip of a pair of holding arms urged in a closing direction, a blade provided movably toward the tip, openable / closable and rotatable. A hand provided with an opening through which the blade can pass and a pair of gripping claws provided with a cutout recess intersecting the opening, and a transfer hand movable in a direction of coming and coming from the electric wire clip. For reversing and transferring electric wires with terminals. 3. The opening allows the blade to pass when the rotation angle of the pair of gripping claws is 180 degrees and 0 degree, and the notch recess allows the rotation angle of the pair of gripping claws to be adjusted. 3. The apparatus according to claim 2, wherein the blade is able to pass when the angle is ± 90 degrees.