JPH0215276Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a wire insertion device.

Wire insertion devices are known in the art for inserting electric wires into corresponding wire receiving grooves of electrical terminals arranged in a row in an electrical connector.

This known wire insertion device generally places the tip of a wire fixed on a wire support by a wire clamp onto a corresponding electrical terminal in an electrical connector, and inserts the wire into a wire fixed to a vertically movable press ram. The electric terminal is configured to be press-fitted into the electric wire receiving groove of the electric terminal by means of a tool. This electric wire insertion device is suitable for an electric connector configured to take out an electric wire press-fitted into an electric terminal horizontally from the connection part to the outside of the electric connector, but it is suitable for an electric wire that extends horizontally from the electric wire connection part in the electric wire insertion direction. When applied to an electrical connector configured to be bent and then taken out from the electrical connector, the following problems arise.

That is, as shown in FIG.
The tip of the electric wire W, which is fixed by the electric wire clamp 2 on top, is placed on the corresponding electric terminal 4 in the electric connector 3, and then inserted into the corresponding electric wire receiving groove of the electric terminal 4 using the electric wire insertion tool 5. When you press the wire W
Since the rising portion 6 is generated in the wire receiving groove, the wire portion partially inserted into the wire receiving groove is pulled backward, resulting in deformation of the electrical terminal and a problem in that a safe electrical connection cannot be achieved.

This invention was created in view of the above problems.
It is an object of the present invention to provide a wire insertion device that guarantees reliable electrical connection even in an electrical connector configured to take out wires in a direction parallel to the wire insertion direction.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 2 to 6.

FIG. 2 shows a front view of the wire insertion device 10 of the present invention.
FIG. 3 shows a side view of the device.

The wire insertion device 10 includes an electrical connector holding device 11 that includes a bench press 12 and a wire clamping device 57.
The bench press includes a press frame having an upper arm portion 12a, a lower arm portion 12b, and a vertical neck portion 12c. A cylindrical ram 13 is slidably attached to the upper arm portion 12a, and the ram is reciprocated by a ram lever 14 through a suitable mechanism. Cylindrical ram 1
A tool support block 15 is fixed to the lower end of the tool support block 3, and a tool mounting block 16 is fixed to the tool support block 15 by a stator 17. As shown in FIG. 4, the tool mounting block 16 has a rectangular protrusion 18 on the front and a pair of legs 19 on both sides.
A wire insertion tool 20 is fixed to the protrusion 18 by a stator 23, and a pair of elongated guide blocks 22 that form a guide groove 21 between each leg 19 are fixed to both sides of the wire insertion tool 20. It is fixed by child 24. Furthermore, a cam surface 2 is provided on the rear surface of each leg 19.
A linear cam 26 having a diameter of 5 and a lower portion protruding downward from the lower end surface of the leg portion 19 is fixed. A pair of cylindrical bodies 27 are integrally formed at the rear portion of the support block 15 and extend vertically downward.
Each cylinder 27 has within it a hole 28 extending through the support block 15. A guide pin 29 that extends vertically upward from the base 30 on the lower arm portion 12b is fitted into each hole 28.

A forwardly extending bottom plate 31 is fixed to the front part of the base 30, and the electrical connector holding device 11 is placed on the bottom plate 31.

The electrical connector holding device 11 is attached to the base slider 3
4 (FIG. 5), the base slider 34 can slide on the bottom plate 31 along the guide groove 32 of the bottom plate 31. The base slider 34 integrally has an electrical connector mounting base 35 with a vertical wall 36 at the end on the side of the base 30, and also has a vertical plate 37 at the end opposite to the electrical connector mounting base 35. There is. Also on the base slider 34 is a slider block 3 which is guided along a pair of L-shaped guide rails 38 (FIG. 2) provided on both longitudinal sides of the base slider 34 and is slidable on the base slider 34.
9 is placed. A pair of blind holes 40 opening toward the vertical plate 37 are formed in the slider block 39, and a shaft 41 extending toward the blind holes 40 is formed on the surface of the vertical plate 37 facing each blind hole 40.
(Fig. 5) is provided. Vertical plate 37
A pair of springs 42 are disposed between the shaft 41 and the bottom wall 40a of the blind hole 40 through the shaft 41 and the blind hole 40, and constantly bias the slider block 39 toward the connector mounting base. One end of a lever 43 is pivotally attached to the center of the front surface of the slider block 39, and the other end is attached to a notch recess 4 formed in the center of the vertical plate 37.
5 and extends forward. The lever 43 is provided with a hook 44 which can be engaged with a notched recess 45 in the vertical plate.

A small block 46 is arranged on the slider block 39 and is fixed to the slider block 39 by a stator (not shown). small block 46
A plate 4 is provided with a wire matching blade 47 at the rear end of the plate 4.
8 and a connector pressing block 49 are integrally fixed, and a pair of parallel shafts 50 fixed to the small block extend from the front end.

On the upper surface of the small block 46, a wire support plate 51,
Clamp plate 58, actuation lever 59 and connection means 6
A wire clamping device 57 consisting of 0 is mounted.

Wire support plate 5 located on the top surface of the small block 46
1 can be slid on the small block 46 by means of guiding means. The guide means includes a pair of plate members 52 (FIG. 2) with an L-shaped cross section fixed to both sides of the wire support plate 51 and guide grooves 53 formed on both sides of the small block 46. be done.

A pair of brackets 54 each having a through hole are fixed to the front end surface of the wire support plate 51, and a shaft 50 passes through each through hole and projects forward. A stopper 55 is attached to each protruding free end of the shaft 50.
is fixed to prevent the bracket 54 from moving forward. A spring 56 is disposed on each shaft 50 between each bracket 54 and the small block 46, and constantly urges the wire support plate 51 forward through the bracket 54.

The pair of guide plate members 52 of the wire support plate 51 extend rearward from the front end of the wire support plate 51 to the rear end thereof and beyond the connector mounting base 35, and are pivoted to a shaft 61 at the inner side of each free end thereof. 62. Each roller 62 is located within the movement path of the linear cam 26 at a wire insertion position, which will be described later, and engages with the linear cam 26.

The clamp plate 58 on the wire support plate 51 is made of a rigid plate 58a made of metal or the like and an elastic plate 5 made of rubber or the like having a high coefficient of friction.
8b, and by actuating the lever 59, the wire support plate 51 is moved from the closed position via the connecting means 60.
It can be rotated to a closed position away from the opening.

A shock absorber 63 (FIG. 3) having a ball 64 is fixed on the base 30 of the lower arm portion 12b, and the ball 64 is urged to protrude outward by a spring (not shown). The buffer 63 elastically abuts against the vertical wall 36 of the electrical connector mounting table 35 when the electrical connector is moved to the wire insertion position, so that the electrical connector 100 on the mounting table 35 is approximately connected to the wire insertion tool 20. Position it within the movement path.

Next, the operation of the wire insertion device of the present invention will be explained. The electrical connector placement device 11 shown in FIG.
to the wire clamp device 57, and also to the electrical connector 1
00 on the electrical connector mounting base 35, the electrical connector placement device 11 is moved to the standard position, ie, the position in front of the bottom plate 31. For this movement, the lever 43 is
When pulled in the direction, the front end of the base slider 34 abuts against a stopper (not shown) provided on the guide groove 32 of the bottom plate 31. From this ready position of the electrical connector placement device 11, the lever 4 is further removed.
3 in the direction of arrow A against the elastic force of the spring 42 to reach the position shown by the broken line in FIG. A suitable space is formed between the upper small block 46 and the vertical wall 36 of the electrical connector mounting base 35 to allow the electrical connector 100 to be set on the electrical connector mounting base 35. In this state, set the electrical connector 100 and connect the hook 44 of the lever 43 and the notch recess 45.
When the slider block 39 is disengaged from the connector, the elastic force of the spring 42 returns the slider block 39 to its original position, so that the connector pressing block 49 of the small block 46 presses the electrical connector 100 toward the vertical wall 36, and as a result, The electrical connector 100 is fixed at a predetermined position on the mounting table 35. Next, the clamp plate 58 is moved to the open position by the operating lever 59 in order to fix the electric wire 101 on the electric wire support plate 51;
After the wire 101 is placed on the wire support plate 51, it is moved to the closed position again by the lever 59 and fixed by a locking device (not shown). As a result, the electric wire 101 is firmly fixed between the electric wire support plate 51 and the clamp plate 58. Each tip of the electric wire 101 fixed to the electric wire clamp device is connected to an electric connector 100 by a wire matching blade 47.
on corresponding electrical terminals (not shown) disposed in a row within.

After the above preparations are completed, the electrical connector placement device 11
is moved to the wire insertion position, that is, the position shown in FIG.

Turn the ram lever 14 counterclockwise (in Figure 3)
When the cylindrical ram 13 is rotated, the cylindrical ram 13 descends and the wire insertion tool 20 fixed to the tool support block 15 moves toward the electrical connector 100. At this time, the guide groove 22 formed by the tool mounting block 16 and the guide block 22 is connected to the electrical connector mounting base 35.
The wire inserter 20 is precisely guided onto the electrical connector 100. At the same time as the wire insertion tool 20 begins to press fit each wire into the corresponding receiving groove of the electrical terminal, each cam surface 25 of the linear cam 26 begins to engage with the roller 61, respectively. Due to the engagement between the linear cam 26 and the roller 61, the wire support plate 51 fixed to the plate member 52 moves over the small block 46 in the direction of arrow B (FIG. 7) against the elastic force of the spring 56.
to slide. As a result, the electric wire located between the clamp plate 58 and the electrical connector 100 is loosened in a loop shape, and the electric wire that is being press-fitted is not pulled toward the clamp plate 58 but is press-fitted into the corresponding receiving groove of the electric terminal. Ru.

When the ram lever 14 is returned to its original position after the press-fitting of the wire is completed, the ram 13 and therefore the wire insertion tool 2
0 and the linear cam 26 are raised, and the wire support plate 51 is returned to its original position by the action of the spring 56, completing one work step.

As mentioned above, the present invention is configured so that when an electric wire is press-fitted into the electrical terminal of an electrical connector, a loop-shaped slack is formed at the rear part of the electric wire to be press-fitted, so that the part of the electric wire to be press-fitted is is not pulled backwards, so that the electrical terminals are not deformed and a reliable electrical contact is ensured.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the wire insertion process using a conventional wire insertion device, Fig. 2 is a front view of the wire insertion device of the present invention, Fig. 3 is a side view of the same, and Fig. 4 is a diagram of the tool mounting block portion. Perspective view, Figure 5 is - of Figure 2.
A line sectional view, FIG. 6 is a - line sectional view of FIG. 2,
FIG. 7 is a sectional view similar to FIG. 5 showing the operating state when the electric wire is inserted. DESCRIPTION OF SYMBOLS 11... Electrical connector holding device, 13... Ram, 20... Electric wire insertion tool, 26... Straight cam, 5
7...Electric wire clamp device, 62...Roller, 10
0...Electrical connector, 101...Electric wire.

Claims (1)

[Scope of utility model registration request] A wire insertion device for inserting wires into corresponding wire receiving portions of electrical terminals arranged in a row in an electrical connector, comprising: a ram that reciprocates within a frame; a wire insertion tool attached to the ram; a linear cam mounted on the ram and extending parallel to the wire insertion tool; a connector holding device; a wire clamping device movably mounted on the connector holding device to fix and hold the electric wire disposed on the electrical connector; and the wire clamp so as to be positioned within the movement path of the linear cam. consisting of a roller attached to the device;
When the wire insertion tool moves toward the electrical connector and inserts the wire into the wire receiving portion, the linear cam engages the roller to direct the wire clamping device toward the electrical connector. An electric wire insertion device characterized in that the electric wire insertion device is moved to form a slack in the electric wire portion between the electric wire clamp device and the electrical connector.