JPH097728A - Simplified terminal crimp device - Google Patents

Abstract

PURPOSE: To crimp various kinds of terminals and electric wires in a simple constitution by feeding each terminal to an anvil via a cam, crimping piled-up electric cables into contact with each terminal, and cutting off the electric cables and the like. CONSTITUTION: When a cam 6 is retreated, a slider 20 is moved up and down, and a bell crank 32 is thereby rocked. A carrier 13 is driven by a feeding pawl 36 while being interlocked with the rocking motion so as to allow each terminal 12 to be fed to an anvil 3. Electric cables 11 are piled up over the terminal 12, and when the cam 6 is then driven, a clipper 5 is lowered down, the terminal 12 is pressed in contact with the electric cables 11 so as to be fixed thereto, simultaneously, cutting force is applied thereto, and the terminal 12 is thereby separated from the carrier. This constitution thereby allows the simplified terminal crimp device to be available, which can flexibly cope with the various kinds of terminals and electric cables, and can press the electric cables in contact with the terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a device for crimping a terminal to the end of an electric wire.

[0002]

2. Description of the Related Art In the process of mass production, a series of processing steps such as cutting an electric wire, peeling a coating, and crimping a terminal are automated. However, since automation as described above is rather inefficient for products of high-mix low-volume production, a semi-automatic simple terminal crimping device that can handle various products is desired.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a simple terminal crimping device which can flexibly deal with various terminals and electric wires by a terminal crimping mechanism having a simple structure.

[0004]

According to the above object, the present invention not only automates the supply of terminals and the crimping operation of terminals, but also does not automate the steps such as cutting of wires and removal of coatings that change depending on various applications. Therefore, the electric wire is supplied by the worker, and the crimping process of the terminal to the electric wire can be flexibly dealt with for various products.

That is, the simple type terminal crimping device of the present invention is a mechanism for crimping a terminal to an end of an electric wire, which has a slit for guiding a terminal, which is provided below a frame, and which can be displaced up and down. An anvil that receives the terminal to be crimped near the cutter, a slider provided above the cutter and the anvil that is movable up and down with respect to the slider guide of the frame and biased upward, and a roller follower at the top, A crimper fixed to a slider and provided to face the cutter and anvil, a cam that is provided so as to advance and retreat with respect to a frame and abuts on the roller follower, drive means that is attached to the frame and that causes the cam to advance and retract, and a frame. It is attached so that it can swing freely with respect to the vertical movement of the slider. And a feed claw that is rotatably attached to the bell crank and is urged in a direction to hold down the carrier integrated with the terminal and feeds the terminals one by one onto the anvil by the swing motion of the bell crank. are doing.

[0006]

When the cam advances and retracts, the slider moves up and down, which causes the bell crank to perform an oscillating motion.
In conjunction with this, the feed pawl drives the carrier to feed the terminal onto the crimping position or anvil. In this state, the worker puts the electric wire of a predetermined length on the terminal on the anvil, drives the cam, and lowers the crimper. At this time, the crimper crimps the terminal to fix the terminal to the electric wire, and also applies a cutting force to the cutter to separate the crimped terminal from the carrier. In this way, the terminal is fixed to the end of the electric wire.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2, 3 and 4 show the structure of a simplified terminal crimping device 1 of the present invention. Simple type terminal crimping device 1
Is assembled by a frame 2 and has an anvil 3, a cutter 4, a crimper 5 and a cam 6 as main parts. The anvil 3 is fixed on a base 7 fixed to the front side of the frame 2. On the front side of the anvil 3, the cutter 4 is rotatably supported by a horizontal hinge pin 8 at one end with respect to the base 7, and is held in a substantially horizontal state by a compression spring 9 at the other end. ing. On the upper surface of this cutter 4,
A recess 10 for positioning the electric wire 11 during crimping
Is formed, and the carrier 1 is integrated with the terminal 12 on the back side.
A horizontal slit 15 is formed in order to guide 3.

As shown in FIG. 5, the terminals 12 are formed at predetermined intervals with respect to the carrier 13, and the carrier 13
Enter the inside of the slit 15 at the part of
While being pressed down, it is supplied to the crimping position with a predetermined drawing resistance. The brake 16 is swingably supported by a pin 17 which is horizontal with respect to the upper part of the cutter 4, and is adapted to come into contact with the upper surface of the carrier 13 at a tip end portion thereof with a predetermined pressure by a pulling spring 18. A guide plate 19 is attached to the frame 2 on the front side of the cutter 4.

The crimper 5 is opposed to the anvil 3 in the vertical direction to apply a crimping force to the terminal 12 and a cutting force to the cutter 4, so that the crimper 5 is provided above the anvil 3 and the cutter 4. It is supported by a slider 20 so as to be vertically movable. That is,
The slider 20 is supported so as to be vertically movable with respect to a slider guide 21 attached to the front surface of the frame 2, is urged upward by the left and right pulling springs 22, and is further horizontal roller pins 24 and a roller follower 23 corresponding to the cam 6. Is equipped with. Crimper 5
The height adjuster is vertically movable with respect to the slider 20 by a square groove or the like, and the height adjuster 25 and the slider 20 are rotatably fixed to the crimper 5 by a scaled male screw. The height adjust 26, which is a female screw that is fixed and screwed to the height adjuster 25, can accommodate the thickness of the electric wire 11 and the size of the terminal 12.

Further, the cam 6 is provided in such a manner that it can slide on the lower surface of the oiles plate 27 fixed to the upper part of the frame 2, and the joint of the driving means 29 by the air cylinder fixed to the rear part of the frame 2. It is connected to 30. In order to lower the crimper 5, the lower surface of the cam 6 has a cam surface 2 of about 40 degrees with respect to the horizontal plane.
8a, the cam surface 28b inclined by about 5 degrees with respect to the horizontal plane for bending the terminal 12 by the crimper 5, and 0 to the horizontal plane for completely crimping the terminal 12
The cam surfaces 28c each having an inclination angle of about 1 degree are formed. A danger prevention cover 38 is attached to a position corresponding to the forward position of the cam 6.

The feed adjuster 31 is attached to the slider 20 in a positionally adjustable manner.
Is a notch portion and engages with a follower roller 33 attached to one end of the bell crank 32. The bell crank 32 is fixed to the frame 2 by a fulcrum pin 34 at an intermediate position, a feed claw 36 is rotatably supported by a pin 35 at the other end, and a tip end of the feed claw 36 is held by a pulling spring 37. 13 are engaged with feed holes 14 formed at regular intervals.

The simple type terminal crimping device 1 having the above structure operates as follows when crimping. First, the carrier 13 of the terminal 12 is housed in the slit 15 and
Are positioned on the anvil 3. In this state, the worker applies the electric wire 11 having a predetermined length and the coating of the tip removed onto the terminal 12 on the anvil 3 to drive the driving means 2
9 is operated to move the cam 6 from the retracted position to the forward direction. When the cam 6 moves from the retracted position to the forward direction,
The slider 20 and the crimper 5 integrated with the slider 20 descend toward the terminal 12 on the anvil 3, bend the U-shaped terminal 12 inward, and crimp the electric wire 11 while holding it.

During the crimping process, the cutter 4 sinks against the compression spring 9 to guide the terminal 12 onto the anvil 3. Before the crimping of the terminal 12 is completed, the crimper 5 moves the cutter 4 in the depressed position.
A cutting force is applied to the terminal 12 to separate the crimped terminal 12 from the carrier 13. When crimping the terminal 12 and the terminal 12
The greatest force is required to disconnect the carrier from the carrier 13. Therefore, as described above, the cam surface 2 of the cam 6
8b and 28c apply a large force downward,
It has a gentle inclination angle.

When the slider 20 descends, in conjunction with this, the bell crank 32 rotates clockwise in FIG. 1 to retract the feed pawl 36, and the tip of the feed claw 36 is fed to the next feed hole. We are engaged in 14 Therefore, when the slider 20 completes the crimping operation and rises, the bell crank 32 rotates counterclockwise to advance the feed pawl 36 by a predetermined amount, that is, the inter-terminal pitch. The terminal 12 to be crimped is guided to the position of the anvil 3 to prepare for the next crimping operation.

[0015]

Other Embodiments In the above embodiment, the moving direction of the cam 6 is set in the front-back direction when viewed from the front, and the width of the entire apparatus when viewed from the front is reduced. On the other hand, the one in FIG.
The cam 6 and its driving means 29 are set in the width direction, that is, the left-right direction when viewed from the front, and the depth dimension of the device is suppressed to be small. Those of these embodiments are to be carried out appropriately depending on the space where the device is to be installed.

[0016]

According to the present invention, the following effects can be obtained. Since the movement of the cutter and the movement of the crimper are interlocked, and the crimping operation and the terminal cutting operation are performed in a time-synchronized state, the crimping operation and the cutting operation are performed in order, and therefore those operations are performed. Be certain. Further, since the crimping operation and the terminal supplying operation are performed on the apparatus side, the operator only needs to supply the electric wire, so that it is possible to quickly cope with electric wires of various sizes. In addition, since it is possible to handle various things only by processing the wire side, it is easy to use and is suitable for wire processing for high-mix low-volume production. Since the terminal crimping operation and the terminal supplying operation are interlocked with each other, a troublesome terminal supplying operation is not required and workability is improved. The crimping mechanism, the cutting mechanism, and the terminal supply mechanism are interlocked with each other, and are driven by one drive source, which are reasonably arranged with respect to the frame, so that the entire device can be simplified and assembled as a small device. To be

[Brief description of drawings]

FIG. 1 is a front view of a simplified terminal crimping device of the present invention.

FIG. 2 is a side view of the simplified terminal crimping device of the present invention.

FIG. 3 is a side view of the simplified terminal crimping device of the present invention during crimping operation.

FIG. 4 is an enlarged cross-sectional view of a main part of the crimping mechanism.

FIG. 5 is a plan view of a terminal integrated with a carrier.

FIG. 6 is a front view of a simplified terminal crimping device according to another embodiment.

[Explanation of symbols]

 1 Simple type terminal crimping device 2 Frame 3 Anvil 4 Cutter 5 Crimper 6 Cam 11 Electric wire 12 Terminal 13 Carrier 15 Slit 20 Slider 21 Slider guide 23 Roller follower 29 Drive means 32 Bell crank 36 Feed claw

Claims (1)

[Claims] 1. A cutter (15), which is provided below a frame (2) and has a slit (15) for guiding a terminal, which is vertically movable as a mechanism for crimping a terminal (12) to an end of an electric wire (11). 4), the anvil (3) that receives the terminal (12) to be crimped near the cutter (4), and the frame (2) above the cutter (4) and the anvil (3).
A slider guide (21) which is vertically movable and biased upward and has a roller follower (23) on the upper part, and a cutter (4) fixed to the slider (20). ) And a crimper (5) provided facing the anvil (3),
A cam (6) provided so as to be movable back and forth with respect to the frame (2) and in contact with the roller follower (23), a drive means (29) attached to the frame (2) for moving the cam (6) forward and backward, and a frame. A bell crank (32) which is swingably attached to (2) and swings in conjunction with the vertical movement of the slider (20);
2) is rotatably attached to the terminal (12) and is urged in a direction to press the carrier (13) integral with the terminal (12), and the swing motion of the bell crank (32) causes the terminals (12) to be anvil (3) one by one. ) Feeding pawl (36)
And a simplified terminal crimping device (1).