JPS608382Y2 - continuous crimping machine - Google Patents

Description

[Detailed description of the invention] This invention consists of a plurality of groups of crimp electrical connectors arranged side by side at a certain interval with the wire end insertion openings in a certain direction and in a parallel position, integrated into a band shape through a plate material. a device for intermittently conveying the connected crimp electrical connector strips sequentially along the juxtaposition direction of the group of crimp electrical connectors at a constant pitch corresponding to the constant interval; A movable die that crimps the crimping electrical connection tool that has been conveyed and supplied by reciprocating movement when the conveyance device is stopped, and a cam that is capable of reciprocating and driving the movable die in a direction perpendicular to the direction of the reciprocating movement of the movable die. The present invention relates to a continuous crimping machine that is configured to move back and forth in conjunction with the crimping machine.

In conventional continuous crimping machines of this type, the cam and the driving fluid pressure cylinder for the cam were connected, and the two were linked so that the cam reciprocated as the fluid pressure cylinder expanded and contracted. The relative position of the cam with respect to the movable die changes due to not only errors in the assembly of the cam, but also errors in the assembly of the fluid pressure cylinder, so the movable die can be operated reliably and accurately to prevent defective products. Not currently occurring,
In other words, in order to perform the desired continuous crimping work with a high yield, the fluid pressure cylinder must also be assembled with great precision, and the assembly as a whole is disadvantageous in terms of work.

In view of this point, the present invention has an object to improve the assembly work so that it can be carried out advantageously.

In the continuous crimping machine according to the present invention, the drive mechanism for the cam includes a fluid pressure cylinder for driving the cam in the forward movement direction, and an attached fluid pressure cylinder for the backward movement direction. The present invention is characterized in that it is configured by providing a spring for biasing the device.

In other words, instead of using a fluid pressure cylinder to drive the cam in both directions, the cylinder drives only the forward movement, which requires a considerable amount of force to achieve the desired crimping. Since the backward movement that does not occur is performed by the elastic force of the spring, when the cam is linked to the fluid pressure cylinder, there is no need to connect the two so that they move together in both reciprocating directions. It is only necessary to interlock the two in contact so that the cam can be pushed forward by the fluid pressure cylinder. Therefore, the required precision for assembling the fluid pressure cylinder is relatively low, and as a result, the desired result is achieved as a whole. We have now achieved an advantageous assembly structure that allows continuous crimping work to be carried out with good yield.

Hereinafter, an embodiment of the present invention will be described based on the drawings. As shown in FIG. This is a continuous crimping machine that targets a crimp terminal band 3 formed by integrally connecting adjacent terminals in a group of terminals 1 (an example of a crimp electrical connector) in a band shape via a plate 2, and this is a continuous crimping machine that The band 3 is attached to the terminal 1 while the terminal 1 is in a horizontal position.
A device 4 that intermittently conveys the groups sequentially along the juxtaposed direction at a constant pitch corresponding to the above-mentioned constant interval, and a device 4 that is capable of reciprocating in the vertical direction and that moves downward when the conveying device 4 is stopped. , a movable die 6 that cuts and separates the terminals 1 conveyed unit by unit via the conveyance device 4 from the plate material 2 in cooperation with the fixed die 5, and crimps them; and the movable die 6 and the conveyance device. 4 and a drive device 7.
8 are assembled to the main body 9.

As shown in FIG. 2, the terminal 1 has a structure in which a metal conductive terminal member 1B is inserted and held in the opening at one end of a synthetic resin insulating sleeve IA, and as shown in FIG. The terminal member IB is electrically and mechanically crushed to the wire end a by being plastically crushed in the diametrical direction while the wire end a is inserted from the other end side opening of the sleeve IA. The sleeve IA is mechanically connected to the wire end a, and the plate material 2 is integrally molded with the sleeve IA.

The conveyance device 4 includes a guide rail 4A on which the terminal strip 3 is placed and slidingly guided to the crimping section, and a ratchet feeding mechanism 4a.
By rotating intermittently at a constant pitch through the guide rail 4A, the recess 4b formed on the outer circumference of the terminal
A rotating body 4B that moves the terminal strip 3 by engaging with the terminal strip 3 is provided.

The driving device 7 for the movable die 6 moves the movable die 6 from a first position P1 where the supply terminal 1 is held between the fixed die 5 and a crimping action second position P2 to supply the terminal to the crimping section. The device is sequentially moved to the third permissible position P3 and the first position P1, and is specifically configured as follows.

In other words, it can be driven back and forth in the lateral direction, and by forward movement,
Vertical posture member 11 connected to the holding member 10 of the movable die 6
The upper end is pressed to move the movable die 6 from the first position P1 to the second position P2, that is, the movable die 6 is crimped and moved, and by the return movement, the pressure is released and the movable die 6 is moved to the third position P3. a cam 12 that allows the movement of the cam 12; each time the cam 12 moves backward in conjunction with the cam 12, it reciprocates once with the vertical posture member 11 serving as its piston rod;
The forward operation moves the movable die 6 from the second position P2 to the third position P3 with air pressure and internal spring 14 pressure, and the backward operation moves the movable die 6 to the third position P3.
An air cylinder 15 for moving from position P3 to first position P□ is provided.

Incidentally, the vertical posture member 11A on which the cam 12 acts is constituted by a roller.

The cam 12 is a movable frame 1 supported by the main body 9 so as to be movable along a fixed path via a group of rollers 17.
The drive mechanism of this cam 12 fixes to the main body 9 an air cylinder 13 that presses and moves the movable frame 18 in its forward movement direction, and also provides a space between the movable frame 18 and the main body 9. A spring 14 is interposed therebetween to bias the movable frame 18 in the backward direction.

The drive mechanism 8 of the conveying device 4 is attached to the holding member 10,
This moves from the second position P2 to the first position P1 and then to the third position P.
3, and when moving from the first position P1 to the third position P3, the ratchet feeding mechanism 4a is operated to feed forward, and when moving from the third position P3 to the first position P1, By providing a cam groove 16 for returning the ratchet feed mechanism 4a, the movable die 6
The drive mechanism 7 is also used for both purposes.

The main body 9 is configured so that it can be placed in an inclined position facing forward and upward in order to facilitate the insertion of the wire end a into the terminal 1 held between the dies 5 and 6. There is.

[Brief explanation of the drawing]

The drawings show an embodiment of the continuous crimping machine according to the present invention, in which Fig. 1 is a perspective view of a crimp terminal band, Fig. 2 is a longitudinal cross-sectional view showing the crimp terminal in a state before crimping, and Fig. 3 is a crimping terminal of the crimp terminal. A vertical sectional view showing the rear state, FIGS. 4 to 6 are partially cutaway front views showing the operation, and FIG. 7 is a partially cutaway side view. 1...Crimp electrical connection tool, 2...Plate material,
3... Crimp electrical connector band, 4... Conveying device, 6... Movable die, 12... Cam, 13... Fluid Pressure cylinder, 14...
·spring.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ A plurality of crimped electrical connectors 1 are arranged side by side at regular intervals with their electric wire end insertion openings in a parallel orientation in a constant direction. A crimp electrical connector band 3 which is integrally connected in a band shape through the crimp electrical connector 1 and
... A device 4 that intermittently conveys the crimping electrical connectors 1 in units of units by this conveying device 4, which sequentially conveys them at a constant pitch corresponding to the above-mentioned constant intervals along the direction in which the groups are juxtaposed.
and a movable die 6 which is crimped by reciprocating movement when the conveyance device 4 is stopped, and this movable die 6 is linked to a cam 12 that can be driven and reciprocated in a direction perpendicular to the direction of reciprocating movement of the movable die 6. In a continuous crimping machine configured for reciprocating movement, the drive mechanism for the cam 12 includes a fluid pressure cylinder 13 for driving the cam 12 in its forward movement direction, and a backward movement direction for the cam 12. A continuous crimping machine characterized in that it is equipped with a spring 14 for biasing the crimping machine. (2) The continuous crimping machine according to claim (2), wherein the cam 12 is supported movably along a fixed path via a group of rollers 17.