JPH09260012A - Electric wire terminal processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically perform a series of work to fix a terminal to an end part of an electric wire by pulling out covering by respectively and separately cutting a conductor and the covering of the electric wire, and plastically deforming a terminal by inserting the terminal into the exposed conductor. SOLUTION: In an electric wire cutting skin peeling mechanism 4, an electric wire 2 is gripped by a gripping part 3a of an electric wire holding mechanism 3, and covering and a conductor of the electric wire 2 are respectively cut by covering cutting edges 4a and 4b and conductor cutting edges 4c and 4d. Next, the covering of an electric wire tip part is pulled out of the conductor by links 4h and 4i of the electric wire cutting skin peeling mechanism 4. The gripping part 3a gripping this electric wire 2 is rotated downward, and is moved to the terminal crimping mechanism 6 side. Here, one terminal 5 of a flexible belt material 7 guided to a terminal pulling-in mechanism 8 is opposed to the tip of the electric wire, and a terminal inserting mechanism 9 pulles out the terminal 5 from the flexible belt material 7, and inserts it into the conductor on the tip of the electric wire. A cylindrical part 5a of the terminal 5 is plastically deformed by a movable part of a terminal crimping mechanism 6, and the terminal 5 is fixed to a conductor of an electric wire end part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire end treatment device which can be used at a site where a control panel or the like is installed, and which can simultaneously strip a wire and crimp a terminal.

[0002]

2. Description of the Related Art An automatic stripping machine for electric wires and an automatic terminal crimping machine are being developed in manufacturing plants for distribution boards and control boards.

[0003]

However, at the installation work site of the panel, the projecting length of the core wire of the control cable, the power cable, etc. is measured in accordance with the actual product, and the work of cutting and peeling the wire is performed, and the manual operation is performed. It is necessary to crimp the terminals by hand using the terminal crimping machine. This is because large-scale wire stripping machines and automatic terminal crimping machines used in factories and the like cannot be used as they are in small installation sites. Accordingly, there has been a demand for a compact, lightweight, multifunctional electric wire terminal processing device that compactly cuts, peels, and automatically crimps terminals. Therefore, the present invention provides a compact electric wire terminal processing device including such a mechanism and capable of continuously driving them at an optimum timing.

[0004]

The electric wire end treatment apparatus of the present invention comprises an apparatus main body 1 and an electric wire gripping portion 3a which can be lifted and lowered between a wire cutting and peeling position b and a terminal crimping position c.
And an electric wire holding mechanism 3 that detachably grips the outer circumference of the end portion of the electric wire 2, and is provided in parallel at the wire peeling position b of the electric wire holding mechanism 3 in the insertion direction thereof. From the side, a pair of wire coating cutting blades 4a, 4 respectively
b and the core wire cutting blades 4c and 4d are arranged in parallel in this order, and at the terminal crimping position c of the electric wire holding mechanism 3, the electric wire cutting and peeling mechanism 4 is juxtaposed to the electric wire holding mechanism 3 and the terminal 5
The crimping of the terminal crimping mechanism 6 with the terminal crimping mechanism 6 that plastically deforms the outer periphery of the cylindrical portion 5a and crimps it onto the core wire 2a, and the flexible strip 7 in which a large number of the terminals 5 are removably juxtaposed. Terminal lead-in mechanism 8 leading to the vicinity of the portion 6a, terminal insertion mechanism 9 for removing the terminal 5 mounted on the flexible strip 7 and inserting the tubular portion 5a into the core wire 2a, and the wire holding mechanism. While holding the end of the electric wire 2 by 3,
After the end portion of the electric wire 2 is cut and peeled by the electric wire cutting and peeling mechanism 4, the electric wire gripping portion 3a of the electric wire holding mechanism 3 is rotated to the terminal crimping position c, and then by the terminal inserting mechanism 9. The tubular portion 5a of the terminal 5 is inserted into the core wire 2a at the tip of the electric wire 2, and then the terminal crimping mechanism 6 is inserted.
And a control mechanism 10 for controlling the outer circumference of the cylindrical portion 5a to be plastically deformed.

In the second aspect of the present invention, the control mechanism 10 in the first aspect of the invention has the following configuration. That is, a reversible screw shaft 13 which is connected to the drive motor 11 and is axially supported by the main body 1 at right angles to the electric wire insertion direction,
A driving bar 14 screwed to the screw shaft 13 and guided in the axial direction of the screw shaft 13 based on its rotation, and movable in parallel with the screw shaft 13 in the axial direction and / or in a direction intersecting with the screw shaft 13. Multiple drive rods 15a-
15h, and a driver 16 that engages or contacts with the driving bar 14 in a detachable manner to drive the drive rods, and any one or more of the drive rods has the wire holding mechanism. 3, a wire cutting and peeling mechanism 4, and a terminal crimping mechanism 6
And the terminal pull-in mechanism 8 and the terminal insertion mechanism 9.

[0006]

[Operation] The overall operation of the wire end treatment device of the present invention is shown in FIG.
And is as follows. The wire cutting and peeling mechanism 4 is sequentially driven from the upper step to the lower step within the frame of the chain line. Similarly, the terminal crimping mechanism 6 and the terminal inserting mechanism 9
Are also driven sequentially from the upper process to the lower process within the chain line frame. Further, the wire holding mechanism 3 is arranged at a position adjacent to the wire cutting and peeling mechanism 4 and the terminal crimping mechanism 6, and as shown in the plan view of the chain line and the side view shown on the right side thereof, the steps from the top step to the bottom step are sequentially performed. Up to the step, the whole is lifted up in response to the driving of the electric wire cutting and peeling mechanism 4 and the terminal crimping mechanism 6, and the electric wire gripping portion 3a detachably grips the electric wire 2. First, the end of the electric wire 2 is inserted at the position A1 in the uppermost stage of FIG. At this time, the wire gripping portion 3a of the wire holding mechanism 3 is in an open state. At the same time, the electric wire cutting and peeling mechanism 4 also has an open state between the electric wire coating cutting blades 4a and 4b and between the core wire cutting blades 4c and 4d. At the same time, the electric wire holding mechanism 3 is in a position rotated upward around the pin 3k. Next, in the step A2, the wire gripping portion 3a of the wire holding mechanism 3 is closed to hold the wire 2, and the core wire cutting blade 4c and the wire coating cutting blade 4a are also provided.
Moves toward the center of the electric wire 2 in the radial direction, and the tip of the electric wire 2 is cut by the core wire cutting blade 4c, and only the covering portion of the electric wire 2 is cut by the electric wire covering cutting blade 4a.

Next, in the step A3, the links 4h and 4i of the electric wire cutting and peeling mechanism 4 move to the left, and the coating at the tip of the electric wire 2 is pulled out from the core wire of the electric wire 2. Then B1
In the step of, the electric wire holding mechanism 3 rotates downward around the pin 3k while holding the outer circumference of the electric wire 2 by the electric wire holding portion 3a,
The wire gripping portion 3a moves to the terminal crimping mechanism 6 side. At this time, one terminal 5 of the flexible strip 7 guided to the terminal retracting mechanism 8 faces the tip of the electric wire 2. Then
In the process of B2, the movable part of the terminal crimping mechanism 6 moves slightly downward, and the terminal inserting mechanism 9 moves rightward,
The terminal 5 is pulled out from the flexible strip 7 and the tubular portion 5a is inserted into the core wire at the tip of the electric wire 2. Next, in the step B3, the movable portion of the terminal crimping mechanism 6 moves further downward to plastically deform the tubular portion 5a of the terminal 5 and fix the terminal 5 to the core wire at the end of the electric wire 2. Next, in step B4, the terminal crimping mechanism 6 is opened, and the electric wire gripping portion 3a of the electric wire holding mechanism 3 is opened, so that the electric wire 2 can be pulled out. Next, in the process of B5, the electric wire holding mechanism 3 rotates upward around the pin 3k while leaving the electric wire 2 and returns to the state of A1.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of an electric wire end treatment device of the present invention, and FIG. 2 is a schematic sectional view taken along line II-II of FIG.
3A and 3B are explanatory views of the electric wire holding mechanism 3 in the same apparatus, in which FIG. 3A is a perspective view of the internal structure thereof, FIG. 3B is a perspective view of a pair of holding mechanism main bodies 3b, and FIGS. FIG. 4 is a plan view of the electric wire cutting and peeling mechanism 4, and FIG. 5 is a front view of the same. Further, FIG. 6 is a left side view thereof, FIG. 7 is a front view of the terminal retracting mechanism 8, and FIG.
7 is an enlarged view of part VIII in FIG. 7, FIG. 9 is a plan view of the flexible strip 7 with the terminals 5 attached, FIG. 10 is an elevational view of the wire holding mechanism 3, and FIG. 11 is driving of the terminal pulling mechanism 8. FIG. In this device, as shown in FIGS. 1 and 2, an electric wire holding mechanism 3, an electric wire cutting and peeling mechanism 4, and a terminal crimping mechanism 6 (FIG. 2) are arranged at the left end of an elongated device body 1. The drive mechanism and the control mechanism are arranged at the center and the right end of the apparatus body 1. The electric wire holding mechanism 3 detachably holds the electric wire 2 and lifts up between the position of the electric wire cutting and peeling position b of the electric wire cutting and peeling mechanism 4 and the terminal crimping position c of the terminal crimping mechanism 6 in FIG. is there.

As shown in FIG. 3, the wire holding mechanism 3 has a wire holding portion 3a provided in a pair of holding mechanism bodies 3b. The electric wire gripping portion 3a has a pair of third links 3i that opens and closes around the pin 3j, and an electric wire holding groove 3n is formed in the opening and closing portion. The rear ends of the pair of third links 3i are pivotally attached to one ends of the pair of second links 3h via the pins 3j, and the other ends are attached to the pins 3 of the first link 3g.
It is pivotally connected via j. A gripper opening / closing lever 3c is pivotally attached to the first link 3g via a pin 3j. The wire gripping portion 3a is guided by the pin guide grooves 3e, 3f and the guide 3m of the holding mechanism body 3b. Further, although the holding mechanism main body 3b is not shown in the drawing in the supporting concave portion 3p formed on the outer surface of the central portion thereof, FIG.
One end of each pin 3k in FIG. 12 is fitted and the other end of each pin 3k is fixed to the main body. Then, the elevation lever 3d pivotally supported at the rear end of the holding mechanism body 3b shown in FIGS.
Of the supporting recess 3p by moving the
The holding mechanism main body 3b is configured to be raised and lowered around the. Further, by moving the gripper opening / closing lever 3c in the longitudinal direction thereof, the electric wire gripper 3a is formed so as to be openable / closable and movable in / out from the holding mechanism main body 3b.

The gripper opening / closing lever 3c and the holding mechanism main body 3b are connected to a drive rod, which will be described later, and the drive mechanism is controlled by a control mechanism including a drive motor, a screw shaft, an electric bar and a driver at optimum timing. Next, the electric wire cutting and peeling mechanism 4 is configured as shown in FIGS.
Are arranged in parallel. This wire cutting and peeling mechanism 4
A base 4m is fixed to a main body (not shown in the figure), and a horizontally movable block 4j is horizontally movably guided by a guide rail 4k which is integrated with the base 4m.
As shown in FIG. 6, a pair of wire coating cutting blades 4b and core wire cutting blades 4d are provided on the upper surface of the end of the horizontally movable block 4j so as to project therefrom. A lower end of a rotating block 4n is pivotally attached to the horizontally movable block 4j, an upper end thereof is pivotally attached to a horizontally movable block 4p, and the horizontally movable block 4p is guided horizontally by a guide rail 4q. The guide rail 4q is integral with the arm 4s, and the arm 4s is pivotally supported by the turning block 4t. Further, the rotating block 4t has a cutting lever 4f.
Is connected to the drive rod 15a through. The rotating block 4n rotates around the pin 4r by the movement of the drive rod 15a in the longitudinal direction, and cuts and peels the electric wire 2 held at the tip thereof. That is, the electric wire coating cutting blade 4a and the core wire cutting blade 4c are provided at the tip of the rotating block 4n.
And are projectingly provided, and cutting and peeling are performed between the electric wire coating cutting blade 4b and the core wire cutting blade 4d of the horizontal movable block 4j.

Next, the link 4 is attached to the horizontally movable block 4j.
The peeling lever 4g and the drive rod 15b are connected via i and 4h, and the horizontal movable block 4j is guided and moved by the guide rail 4k as the drive rod 15b moves in the longitudinal direction. Thereby, after the coating of the electric wire 2 is cut, the coating can be extracted from the electric wire 2. Next, the electric wire 2
As shown in FIGS. 7 to 11, the terminal 5 inserted at the tip of the is mounted in the insertion recess 7 b of the flexible strip 7 and guided by the terminal pulling mechanism 8. As shown in FIGS. 10 and 11, the flexible strip 7 is wound around the holding portion 8a, passes through the bottom of the apparatus main body 1, and is suspended around the outer circumference of the drawing drum 8b. The pull-in drum 8b is intermittently driven by an appropriate drive source at each pitch where the terminals 5 are mounted. Then, the terminal 5 is stopped at a position facing the tip of the electric wire 2. Therefore, the flexible strip 7 is provided with a small hole 7a, and the convex portion 8c provided on the drawing drum 8b is fitted into the small hole 7a to prevent slippage therebetween.

Next, the wire cutting and peeling mechanism 4 and the terminal crimping mechanism 6 are driven by moving the drive rods 15a and 15c shown in FIG. 2 in the longitudinal direction and rotating them around one end in the longitudinal direction. This drive rod 15a is slidably and rotatably guided in the longitudinal direction of the apparatus main body 1, and a driver element 16 is rotatably rotatably supported at the intermediate portion of each. A locking recess is provided at the upper end or the lower end of the driver element 16, and the locking recess engages with the driving bar 14 in a disengageable manner. Further, a roller is provided on the side opposite to the locking recess of the driver element 16, which is locked by the stopper 12 of the apparatus main body 1 to rotate the driver element 16, thereby engaging and disengaging the driving bar 14. It is something to do. The driving bar 14 is screwed onto a screw shaft 13 which is axially supported at the center of the apparatus main body 1, and is moved in the axial direction by the rotation of the screw shaft 13. The screw shaft 13 is connected to the drive motor 11 via a gear 11a, and the reversible rotation of the drive motor 11 causes the drive bar 14 to reciprocate in the axial direction.

The driving mechanism of the terminal crimping mechanism 6 is a driving bar 14
A roller 17 connected to the roller 17 and a drive rod 15c contacting the roller 17. The drive rod 15c has a cam surface on its upper surface, and its right end in the longitudinal direction is pivotally attached to the apparatus main body 1 and its left end is connected to the crimp portion 6a in FIG. 2 via three links. The drive rod 15c has a spring 18
As a result, one end thereof is biased upward, and the crimp portion 6a in FIG. Then, the driving bar 11 is rotated to move the driving bar 14 in its axial direction,
The drive rod 15c is rotated via the roller 17 to drive the terminal crimping mechanism 6. And drive rod 15a, drive rod
15c is driven in the axial direction and the vertical rotation direction at desired timing depending on the mounting position of the driver element 16, the disengaged position of the stopper 12 engaged and disengaged with the driver element 16 and the shape of the cam surface. The timing is matched with each step of the wire cutting and peeling mechanism 4 and the terminal crimping mechanism 6 in FIG.

Similarly, in the wire holding mechanism 3, the grip portion opening / closing lever 3c and the elevation lever 3d shown in FIG. 3 are connected to a drive rod (not shown). Then, the wire holding mechanism 3 is driven in association with the wire cutting and peeling mechanism 4 and the terminal crimping mechanism 6.

[0015]

According to the electric wire end treatment device of the present invention, the electric wire cutting and peeling mechanism 4 and the terminal crimping mechanism 6 are arranged in parallel to each other, and the device main body 1 is provided.
The wire gripping portion 3a of the wire holding mechanism 3 located in the vicinity of the wire holding mechanism 3 is located at the wire cutting and peeling position b and the terminal crimping position c.
Since it is formed so that it can be lifted up and down, the wire end stripped by the wire cutting and stripping mechanism 4 can be automatically supplied to the terminal crimping mechanism 6. Then, the terminal 5 of the flexible strip 7 guided to the terminal retracting mechanism 8 is inserted into the core wire 2 a of the electric wire 2 by the terminal inserting mechanism 9. Then, the terminal crimping mechanism 6 crimps and fixes the terminal 5 to the end portion of the electric wire 2. At this time, the control mechanism 10 controls the electric wire cutting and peeling mechanism 4, the terminal crimping mechanism 6, the electric wire holding mechanism 3, the terminal retracting mechanism 8 and the terminal inserting mechanism 9, and a series of operations for fixing the terminal to the end of the electric wire. Can be done automatically. In addition, since the arrangement position is rational and the structure is simple, the device can be made compact and the electric wire terminal processing device can be easily used at the control panel installation site or the like.

The apparatus of the second aspect of the present invention has a screw shaft 13 pivotally supported by the apparatus main body 1, a driving bar 14, and a plurality of drive rods, and a plurality of driver elements 16 for driving the respective drive rods 16. Engages or contacts the driving bar 14 in a freely detachable manner. Each drive rod has an electric wire holding mechanism 3, an electric wire cutting and peeling mechanism 4, a terminal crimping mechanism 6, a terminal retracting mechanism 8 and a terminal inserting mechanism 9.
Since it is connected to, the number of drive sources such as drive motors can be extremely small, and it can be a compact and lightweight device, and can be used even in a narrow place such as a control panel installation site. It will be possible.

[Brief description of drawings]

FIG. 1 is a plan view of an electric wire end treatment device of the present invention.

FIG. 2 is a schematic sectional view taken along the line II-II in FIG.

FIG. 3 is an explanatory diagram of an electric wire holding mechanism 3 according to the present invention.

FIG. 4 is a plan view of an electric wire cutting and peeling mechanism 4 of the present invention.

FIG. 5 is a front view of the same.

FIG. 6 is a left side view of the same.

FIG. 7 is a front view of a terminal retracting mechanism 8 that guides the flexible strip 7.

FIG. 8 is an enlarged view of part VIII in FIG.

FIG. 9 is a plan view of the flexible strip material 7 to which the terminals 5 are attached.

FIG. 10 is a front explanatory view showing a raised state of the electric wire holding mechanism 3 and a guide path of the flexible strip 7.

FIG. 11 is a side view of the same.

FIG. 12 is an explanatory diagram of each step of the electric wire terminal processing device.

[Explanation of symbols]

 1 Device body 1a Handle 2 Electric wire 2a Core wire 3 Electric wire holding mechanism 3a Electric wire gripping part b Electric wire cutting and peeling position c Terminal crimping position 3b Holding mechanism main body 3c Gripping part opening / closing lever 3d Depression lever 3e, 3f Pin guide groove 3g 1st link 3h 2nd link 3i 3rd link 3j pin 3k pin 3m guide 3n groove part 3p supporting recess 4 wire cutting and peeling mechanism 4a, 4b wire coating cutting blade 4c, 4d core wire cutting blade 4f cutting lever 4g peeling lever 4h, 4i link 4j, 4p Horizontal movable block 4k, 4q Guide rail 4m Base 4n Rotating block 4r Pin 4s Arm 4t Rotating block 5 Terminal 5a Cylindrical part 6 Terminal crimping mechanism 6a Crimping part 7 Flexible strip 7a Small hole 7b Inserting concave part 8 terminal drawing mechanism 8a reel 8b drawing drum 8c convex portion 9 terminal insertion Structure 10 control mechanism 11 for driving the motor 11a gear 12 stopper 13 screw shaft 14 driving bar 15a~15c driving rod 16 drive element 17 roller 18 spring

Claims (2)

[Claims] 1. An apparatus main body 1 and an electric wire gripping portion 3a are attached to the apparatus main body 1 so as to be elevated between a wire cutting and peeling position b and a terminal crimping position c, and an outer periphery of an end portion of an electric wire 2 is detachably gripped. Wire holding mechanism 3 and a pair of wire coating cutting blades 4a and 4b and a core wire that are provided in parallel at the wire peeling position b of the wire holding mechanism 3 in the insertion direction, and that are paired from the wire holding mechanism 3 side. Electric wire cutting and peeling mechanism 4 in which cutting blades 4c and 4d are arranged in parallel in order
And a terminal crimping mechanism 6 which is juxtaposed with the electric wire holding mechanism 3 at the terminal crimping position c of the electric wire holding mechanism 3 and plastically deforms the outer periphery of the tubular portion 5a of the terminal 5 to crimp it onto the core wire 2a. , A flexible strip 7 in which a large number of the terminals 5 are detachably arranged in parallel
A terminal retracting mechanism 8 that guides the terminal 5 to the vicinity of the crimping portion 6a of the terminal crimping mechanism 6 and the terminal 5 attached to the flexible strip 7 and insert the tubular portion 5a into the core wire 2a. Mechanism 9 and the electric wire holding mechanism 3 holds the end of the electric wire 2, and after the electric wire 2 end is cut and peeled by the electric wire cutting and peeling mechanism 4, the electric wire holding mechanism 3 holds the electric wire. The portion 3a is rotated to the terminal crimping position c, then the tubular portion 5a of the terminal 5 is inserted into the core wire 2a at the tip of the electric wire 2 by the terminal inserting mechanism 9, and then the terminal crimping mechanism 6 is inserted.
An electric wire end treatment device comprising: a control mechanism 10 for controlling the outer periphery of the tubular portion 5a to plastically deform. 2. The control mechanism 10 according to claim 1,
A screw shaft 13 which is connected to a driving motor 11 and which is reciprocally rotated by the main body 1 orthogonally to the wire insertion direction.
A driving bar 14 which is screwed to the screw shaft 13 and guided in the axial direction of the screw shaft 13 based on its rotation;
Or multiple drive rods 15 that can move in the direction intersecting with them
a to 15h and a driver element 16 that engages or contacts with the driving bar 14 in a detachable manner to drive the respective drive rods, and one or more of the drive rods are respectively connected to the electric wires. An electric wire end treatment device connected to a holding mechanism 3, an electric wire cutting and peeling mechanism 4, a terminal crimping mechanism 6, a terminal retracting mechanism 8, and a terminal inserting mechanism 9.