JPS6017877A - Device for mounting terminal of coated wire - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal attachment device for a covered electric wire, which continuously performs the operations of stripping off the coating from both ends of a covered electric wire, twisting the exposed core wire, and fixing a terminal thereto.

Conventional terminal attachment devices for coated wires require stripping of the coating.

Work machines that carry out terminal installation work divided into core wire twisting, terminal fixing, inspection, etc. are arranged at equal pitches along the running direction of the conveyor. A large number of gripping tools are installed at equal pitches, and the terminals on both sides of one covered wire are gripped separately with two adjacent gripping tools. The gripping tools are attached to each working machine in sequence to perform each work.In order to be able to apply the gripping tools to short coated wires, the pitch of the gripping tools has to be adjusted. It is necessary to make the conveyor smaller, and the number of gripping tools attached to the conveyor increases significantly, resulting in a large weight, requiring a large amount of power to drive, making it more likely to break down, and having the drawbacks of increasing equipment costs. SUMMARY OF THE INVENTION An object of the present invention is to eliminate such drawbacks and provide a terminal attachment device that can be applied to short coated wires even though the number of gripping tools attached to the conveyor is small.

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

As shown in Fig. 1, a stripping machine A, a core twisting machine B, and a terminal fixing machine C are arranged along a horizontally elongated frame 1 at an equal pitch P1, and are erected at intervals on the upper surface of the frame 1. A timing belt 3 with a trapezoidal groove 4 connected to the lower surface is inserted between a pair of guide walls 2.2, and a number of gripping tools are mounted on the timing belt 3 with a small interval between the two pairs of gripping tools. P2
Further, they are attached so that the pitch as a pair is the same as the pitch P1.

The structure of each gripping tool will be explained based on FIG. 2. Grooves 5.5 corresponding to each other are formed in the inner surface of the guide wall 2.2,
An elongated base plate 6 is slidably supported by fitting tongue pieces 7.7 protruding from both front and rear ends into the groove 5.5, and a fixing piece fitted into the center of the trapezoidal groove 4 of the timing belt 3. A socket bolt 9 passing through the timing belt 3 from the bottom surface of the board 6 is screwed into the board 6 to fix the board 6 to the timing belt 3, and a guide groove 10 in the front and rear direction is formed in the center of the top surface of the board 6. A pair of left and right fingers 11.11 are supported by a shaft 12.12 on both sides so as to be freely openable and closable, and gripping portions 13.13 corresponding to each other are formed at the tips of the fingers 11.11 so as to protrude from one side, and each gripping portion 13.13 The corresponding inner surfaces of the projecting pieces 14 have V-grooves 15 formed at their tips and are fitted in an alternating manner.
．． 14 is formed, and one finger 11.11 is biased in the opening direction by the elastic expansion force of a compression coil spring 16 installed between them. The guide groove 10 is
An elongated actuating body 17 with a triangular cam 18 fixed to its surface is slidably fitted, and this actuating body 17 has pins 20 and 20 protruding from both sides of the base plate 6 at its rear end. The cam 18 is biased in the forward direction by the elastic force of the tension coil spring 22 installed between the bin 21.2I and the cam 18.
9 is engaged with a roller 23.23 pivotally supported on the upper surface of the rear end of 11 to close the finger 11.11 against the elastic expansion force of the coil spring 16. There is.

An air cylinder 24 is fixed horizontally on the opposite side of the terminal fixing device C of the frame 1, and a concave engagement member that slides back and forth on two sides of the frame 1 is attached to the tip of a piston rod 25 protruding from the front end of the air cylinder 24. The combination 26 is fixed and the actuating body 17
A roller 27 pivotally supported on the lower surface of the rear end is fitted into the engaging body 26.

Further, two sides of the frame 1 are covered with a cover 28 that rises from the rear surface and is bent horizontally, and only the gripping portion 13.13 at the tip of the finger 11.11 of each gripping tool is at the edge of the cover 28. It protrudes from its upper surface.

Then, wire a with resin coating C around the core wire is
It is placed on the cover 28 by bending it in the same shape as the letter A, and at a mounting position (not shown) on the left side of FIG. 1, open the pair of gripping tools, the fingers 11. 1
3.13, each gripper is gripped separately, and by the intermittent running of the timing belt 3, they are sequentially transferred to the right in Figure 14. , D on the front side in the running direction interacts with each working machine A, B, and C, and when each work of lining up the end of the electric wire a gripped by this is completed, the timing bell 1 to 3 is The gripping tool forming a shape moves by a distance P2 of D, and the rear gripping tool is made to correspond to each work machine, and when the work on the end of the electric wire a gripped by this is completed,
next.

The distance P3 between two adjacent pairs of adjacent pairs, i.e.
The front gripper of one pair of grippers, D, is moved to the next work machine 1. Correspondingly, the operations of stripping the coating, twisting the core wire, fixing the terminal, and inspecting the right side of FIG. 1 were performed in sequence.11. Ru.

Note 1. In the position of the terminal fixing device C, when the roller 27 pivotally supported by the actuating body 17 fits into the engaging body 26, the piston rod 25 of the air cylinder 24 contracts, the actuating body 17 retreats, and the fingers 11.11 is compression coil spring 1
It opens due to the elasticity of 6 and the grip on the end of wire a is released, and 1
It is re-grasped by a transfer device (not shown) and transferred to the terminal fixing machine C located at a position apart from the frame 1, and after the work is completed, it is returned to the gripping tool and the fingers 11.11 are fixed by the extension of the piston rod 25. It is designed to be closed and grasped again, and the same opening and closing is performed in the inspection device (not shown), the mounting position, and the removing position.

- As specifically explained by the examples described in .

The working machines of the present invention, which carry out separate terminal installation operations such as stripping the wire, twisting the core wire, fixing the terminal, and inspecting the wire, are arranged at equal pitches along the running direction of the conveyor, and terminals on both sides of a single covered wire are arranged at equal pitches along the running direction of the conveyor. A plurality of pairs of gripping tools, each consisting of two gripping tools, each of which grips the The conveyor is moved intermittently between each pair of gripping tools and the distance between two adjacent pairs of gripping tools. The gist is that each work is carried out in sequence with each work machine, and it can be applied to short electric wires by reducing the distance between the two gripping tools in a pair. is possible,
However, the number of gripping tools attached to the conveyor can be reduced, making it lightweight, improving durability, and reducing equipment costs.

4 l of the drawing,! DESCRIPTION OF THE PREFERRED EMBODIMENTS The accompanying drawings show an embodiment of the present invention, with FIG. 1 being a partially cutaway plan view showing an overview, and FIG. 2 being a partially cut away enlarged perspective view.

A: Cover stripping machine B: Core wire twisting machine C: Terminal fixing machine D
: Gripping tool 3: Timing belt 11: Finger Applicant: CKD Co., Ltd. Applicant: Sumitomo Electric Industries Co., Ltd. Applicant: Tokai Electric Cable Co., Ltd. Representative Patent attorney Hiroshi Noguchi 8- ---395- Continuation of page 1! 72) Inventor: Miwa Shinsho, Tokai Electric Cable Co., Ltd. Yokkaichi Office, 1-14, Nishisuehiro-cho, Yokkaichi City, 2010 - Inventor: Yoshinobu Ota, Tokai Electric Cable Co., Ltd., Yokkaichi Office, 1-14, Nishisuehiro-cho, Yokkaichi City (Ha) ) Applicant: Sumitomo Electric Co., Ltd. 5-5 Kitahama, Higashi-ku, Osaka City

Claims (1)

[Claims] Work machines that carry out separate terminal installation tasks such as stripping the wire, twisting the core wire, fixing the terminal, and inspecting the wire are arranged at equal pitches along the running direction of the conveyor, and the terminals on both sides of a single covered wire are separately attached. A large number of pairs of gripping tools, two of which are to be gripped, are arranged so that the interval between the two pairs of gripping tools is smaller than the arrangement pitch of the working machine, and the pitch of the pair is the same as the arrangement pitch. Attach it to a conveyor, and make the conveyor
Each work is carried out by alternately moving the gripping tools intermittently at intervals of two pairs of the gripping tools and at intervals of two adjacent gripping tools between adjacent pairs, and making each gripping tool correspond to each of the work machines in sequence. A terminal attachment device for a covered electric wire, characterized in that it is configured to perform