JPH0623140Y2 - Electric wire clamp mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an electric wire clamp mechanism used to clamp (tighten) an electric wire at a predetermined position.

[Prior Art] Conventionally, when a conductive contact or the like is collectively connected to the ends of a plurality of electric wires that have been cut to a predetermined length, the electric wires are placed at predetermined positions prior to the actual electric wire treatment process. A clamping process of clamping the electric wire is executed. An electric wire clamp mechanism is used in the clamping step.

The electric wire clamp mechanism includes comb teeth for clamping having a plurality of grooves that are slightly narrower than the outer diameter of the electric wire.
Clamping is performed by inserting the electric wires into the grooves of the comb teeth one by one at predetermined positions. At this time, it is necessary to manually clamp a plurality of electric wires that are collectively processed one by one.

By the way, in recent years, with the progress of miniaturization and high density of electronic devices, there is a demand for arranging and clamping a plurality of electric wires at intervals of about 2 mm or 1.25 mm.

[Problems to be solved by the device] However, the width of the comb tooth groove is constant, and
Since the wire is inserted into a groove that is a little narrower than the outer diameter of the wire, if the wire has a variation in outer diameter, the work of pushing the wire into the groove cannot be performed.

In addition, when the electric wire is removed from the comb teeth after the treatment process, the electric wire is unnecessarily distorted or pressed, which causes a problem that the electric wire is defective during the removing work.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electric wire clamp mechanism that can sequentially and surely clamp electric wires one by one and that can be removed without distorting or pressing the electric wires when they are released from the clamped state.

[Means for Solving the Problem] According to the present invention, in an electric wire clamp mechanism for clamping a plurality of electric wires one by one, a plurality of electric wire receivers for receiving the electric wires and a plurality of electric wire clamps for clamping the electric wires in pairs. , And an index cam for sequentially operating the clamp pieces by rotating in a predetermined direction. The index cam has a plurality of index cams for operating the clamp pieces on a peripheral surface facing the clamp pieces. Has a cam part,
An electric wire set position, an electric wire clamp position, and an electric wire take-out position are sequentially formed on the cam portion, and the electric wire set position and the electric wire clamp position are the rotation of the index cam in all the cam portions. The electric wire clamping mechanism is characterized in that the electric wire take-out positions are formed so as to be slightly shifted in the direction, and the electric wire take-out positions are in the same position in the rotational direction of the index cam in all the cam portions.

[Embodiment] FIGS. 1 and 2 show an electric wire clamp mechanism according to an embodiment of the present invention. This electric wire clamp mechanism includes a plurality of clamp pieces 1 arranged in a line in the horizontal direction, an electric wire receiver 2 facing the clamp pieces 1, and an index cam 3 for sequentially operating the clamp pieces 1. have.

An intermediate portion of the clamp piece 1 is rotatably held by a horizontal clamp shaft 5. The clamp shaft 5 is
Both ends are supported by two side plates 9 and 11 provided on the upper surface of the base plate 7. Two side plates 9, 11
Are connected to each other by a connecting plate 13 provided on the upper surface of the base plate 7.

The index cam 3 is provided with a horizontal cam shaft 15. The cam shaft 15 is rotatably supported at both ends by the side plates 9 and 11. A dial 17 is provided at an end portion of the cam shaft 15 protruding from one side plate 11.

One end 1a of the clamp piece 1 faces the peripheral surface of the index cam 3. The other end 1b of the clamp piece 1 faces the upper wire receiver 2. Clamp piece 1 and connecting plate 13
A spring 19 is provided between and. The spring 19 applies a preload to the clamp piece 1 so as to urge the other end 1b upward.

As shown in FIG. 3, the index cam 3 has a plurality of cam portions 21 that are adjacent to each other in the axial direction of the index cam 3 with an interval of a width W in the axial direction. The third
In the figure, the number of cam portions 21 is omitted and only three are shown. Actually, the cam portions 21 are arranged in parallel in the axial direction of the index cam 3 by the number of the clamp pieces 1. The cam portion 21 and the clamp piece 1 have a one-to-one correspondence.
The width W of the cam portion 21 corresponds to the plate thickness of one clamp piece 1. An electric wire set position 25, an electric wire clamp position 27, and an electric wire take-out position 29 are sequentially formed on the peripheral surface of each cam portion 21 in the direction opposite to the rotation direction.

The electric wire take-out position 29 is a position where all the cam portions 21 coincide with each other in the rotation direction, and is a portion where the dimension of the index cam 3 in the radial direction is the largest. The wire set position 25 and the wire clamp position 27 are the wire extraction position 29.
It is a portion having a smaller radial dimension. Further, the wire clamp position 27 is smaller than the wire set position 25 in the radial direction. The electric wire set position 25 and the electric wire clamp position 27 are formed in all the cam portions 21 while being slightly shifted in the rotation direction of the index cam 3.

When the electric wire 23 is set, the other end 1b of the clamp piece 1 is pushed up by the preload of the spring 19, and as a result, the one end 1a of the clamp piece 1 is in contact with the electric wire setting position 25 of the index cam 3. In this state, the positional relationship between the other end 1b of the clamp piece 1 and the electric wire receiver 2 is such that there is an interval such that the electric wire 23 can be inserted between the V groove 31 of the clamp piece 1 and the electric wire receiver 2 as shown in FIG. is doing. The position of the electric wire 23 is determined by the V groove 31 of the clamp piece 1 and the electric wire receiver 2.
It is specified only in the left-right and up-down directions along the paper surface of FIG. As a result, since the electric wire 23 can be freely inserted and removed in the direction of arrow A in FIG. 2, it is possible to easily set the electric wire 23 at a predetermined position.

After setting the electric wire 23, the dial 17 rotates the index cam 3 in a predetermined direction (direction of arrow B in FIG. 3) by a predetermined angle, and the clamp position 27 of the index cam 3 is applied to the one end 1a of the clamp piece 1. . As a result, the other end 1b of the clamp piece 1 is pushed up toward the electric wire receiver 2 by the preload of the spring 19, and the first electric wire 23 is clamped as shown in FIG.

Similarly, the work of setting and clamping the second and subsequent electric wires 23 is performed while rotating the index cam 3 in a predetermined direction by a predetermined angle. Thus, the electric wires 23 can be reliably clamped one by one by sequentially rotating the dial 17. After finishing all the clamping work, a predetermined process is applied to the tip portions of all the electric wires 23.

After the specified processing is completed, the index cam 3
Rotate in a predetermined direction, and step (slope) 3 shown in Fig. 3
One end 1a of the clamp piece 1 hits 3 and the other ends 1b of all the clamp pieces 1 are rotated in a direction in which the spring 19 is compressed. When one end 1a of the clamp pieces 1 reaches the electric wire take-out position 29 of the cam portion 21, the other ends 1b of all the clamp pieces 1 are
Are largely separated from the electric wire receiver 2 as shown in FIG. In this state, the electric wire 23 is moved in the left-right direction along the paper surface in FIG.
It can be easily taken out from the groove 31. Therefore, there is no risk of stress on the treated electric wire 23.

[Effect of the Invention] As described in the above embodiments, according to the electric wire clamp mechanism of the present invention, the clamp pieces that can be independently operated are sequentially operated for each electric wire, so that the supplied electric wire is removed. You can securely clamp each book. After the wire is processed, the index cam performs a series of operations to open the clamp all together to ensure good operability and to take out the wire without giving anxious stress to the wire. You can

[Brief description of drawings]

1 is a front view showing an embodiment of an electric wire clamping mechanism of the present invention, FIG. 2 is a side sectional view of FIG. 1, FIG. 3 is a perspective view showing an index cam of FIG. 1, and FIGS. FIG. 6 shows a wire clamping process, FIG. 4 is a positional relationship diagram showing a wire setting time, FIG. 5 is a positional relationship diagram at the time of wire clamping, and FIG.
The figure is a positional relationship diagram showing when the electric wire is taken out. 1; Clamp piece, 2; Electric wire receiver, 3; Index cam, 5; Clamp shaft, 7; Base plate, 1
9; spring, 25; electric wire set position, 27; electric wire clamp position, 29; electric wire take-out position, 33; step portion.

Claims (1)

[Scope of utility model registration request] 1. An electric wire clamp mechanism for clamping a plurality of electric wires one by one, and an electric wire receiver for receiving the electric wire,
It has a plurality of clamp pieces that pair with the electric wire receiver and clamps the electric wire, and an index cam for sequentially operating the clamp pieces by rotating in a predetermined direction. The index cam has a circumference facing the clamp piece. The surface has a plurality of cam portions for operating the clamp pieces, and an electric wire set position, an electric wire clamp position, and an electric wire take-out position are sequentially formed on the cam portion. The electric wire clamp positions are formed so as to be slightly shifted in all the cam portions in the rotation direction of the index cam, and the electric wire take-out positions are the same in all the cam portions in the rotation direction of the index cam. The electric wire clamp mechanism is characterized in that