JPH08264257A - Terminal crimping device and terminal crimping method - Google Patents

Abstract

(57) [Abstract] [Purpose] To save space by placing the terminal reel within the width of the device. [Structure] A crimper 3 fixed to a ram 4, a lever 9 for sending a lateral chain terminal 2 from the rear of the device to an anvil, and a lever 9
A first cam for driving the ram, and a shear blade 24 for disconnecting the terminal. The second cam 17 and the third cam for integrating the ram, and the second cam 17 connected to the shear blade 24.
And a rotatable anvil holder 6 having an anvil 5 and a terminal guide which is adjacent to the anvil and which can be raised and lowered, and a third cam which drives the anvil holder 6 and connects the rotating means to the anvil holder 90. Rotating lever 36 for rotating
With. The L-shaped link 21 of the lever 16 is connected to the shear blade, and rotates in the blade pushing-down direction when the ram rises. The terminal guide and anvil are adjacent to the shear blade at the initial position of the anvil holder at the top dead center of the ram,
It is located on the front side of the device at the 90 ° rotation position of the anvil holder at the bottom dead center of the ram.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention converts a vertical movement of a ram into a movement in a perpendicular direction by a cam so that a terminal feeding operation, a terminal disconnection operation, a 90 ° reversal operation of the terminal operation, and a terminal crimping operation can be performed within one cycle. The present invention relates to a terminal crimping device and a terminal crimping method.

[0002]

2. Description of the Related Art FIG. 14 is a front view showing a conventional terminal crimping device. This device 61 takes in the lateral chain terminal 2 (see FIG. 16) from the side (the lateral width direction of the device) and sends it out onto the anvil (lower mold) 5 by the feed lever 9 to form the shank 62.
The crimper (upper mold) 3 is lowered integrally with the ram 4 by the lowering operation of a cylinder (not shown) connected to the wire, and the electric wire is crimped and connected to the crimp portion 32 of the terminal 7 (FIG. 16) between the anvil 5 and the crimper 3. It is a thing.

The horizontal chain terminal 2 (FIG. 16) is formed by connecting a plurality of terminals 7 in parallel to a chain band 28. Each terminal 7 has a rear crimping portion 32 (a wire crimping piece 32a and a cover crimping piece 32).
It is connected to the chain band 28 via a small piece 63 at the rear end of b). The electric contact portion 7a is formed in front of each terminal 7, and in the terminal 7 having the spring tongue piece 7b inside the contact portion, the small piece 73 cannot be formed on the spring tongue piece 7b.
A vertical chain that connects terminals in series cannot be made, and a horizontal chain is essential.

In the device 61, the terminal feed lever 9
Is driven by a cam as the ram 4 moves up and down, and the claw portion 14 at the tip is
Is hooked on the feed hole 64 (FIG. 16) of the chain band 28 to feed the horizontal chain terminal 2 forward by one pitch. The chain band 28 is separated by the shear blade 24 almost simultaneously with the crimping of the terminal 7.

However, in the above-mentioned conventional apparatus 61, in order to take in the lateral chain terminal 2 from the side of the apparatus 1 as shown in FIG. 14, the reel 65 wound with the lateral chain terminal 2 is obliquely above the apparatus 61 or. It was necessary to position it below, and at least a space corresponding to the reel diameter larger than the lateral width of the device 61 was required. Therefore, when several crimping devices 61 are installed in parallel, an extra factory space is required.

Therefore, the arrangement of the terminal reel 65 as shown in FIG. 15 has been considered. That is, the reel 65 is attached to the crimping device 6
The horizontal chain terminal 2 is located at the rear of the device 1 and is twisted by 90 ° and is supplied to the device. However, this structure has a drawback that the terminal 7 is inclined with respect to the chain band 28 as shown in FIG. 16 or twisted as shown in FIG. When the terminal 7 is tilted or twisted, the terminal 7 is displaced with respect to the crimper 3 and supplied, causing a problem of crimping failure.

[0007]

SUMMARY OF THE INVENTION In view of the above points, the present invention can supply horizontal chain terminals without twisting by 90 °,
Moreover, it is an object of the present invention to provide a terminal crimping device and a terminal crimping method that do not take up a large space in the terminal reel.

[0008]

To achieve the above object, the present invention provides a ram that can be raised and lowered, a crimper fixed to the ram, an anvil for the crimper, and a lateral chain terminal on the anvil. In a terminal crimping device comprising a feed terminal feed lever, a first cam provided on the ram for driving the terminal feed lever, and a shear blade for separating the terminal from the lateral chain terminal, a second crimp device provided on the ram A cam and a third cam, a shear blade elevating lever that is connected to the shear blade and is driven by the second cam, and the anvil and the adjoining anvil can be moved up and down under spring bias. And a rotatable anvil holder having a terminal guide, and an anvil holder swiveling lever which is driven by the third cam and which is connected to a rotating means to rotate the anvil holder by 90 °. Basic to that. The shear blade elevating lever is composed of a straight first link and an L-shaped second link, and the tip end of the second link is connected to the shear blade so that the shear blade is pushed down when the ram is raised. The terminal feed lever is positioned so as to be capable of swinging in the front-rear direction behind a ram having a rotating structure or the crimper on the front side, the shear blade is positioned laterally of the anvil holder, and the terminal guide and anvil are provided. However, a structure is also effective in which it is adjacent to the shear blade at the initial position of the anvil holder at the top dead center of the ram and is located on the front side of the device at the 90 ° rotational position of the anvil holder at the bottom dead center of the ram. In addition, the horizontal chain terminal is fed onto the anvil by the terminal feed lever, the terminal is separated from the horizontal chain terminal by the shear blade, and crimping is performed between the anvil and the crimper that is located on the front side of the device and moves up and down integrally with the ram. In the terminal crimping method, the horizontal chain terminal is supplied from the back side of the device,
In the ascending step of the ram, the shear blade is operated by interlocking the ram integrated cam and the lever, and in the descending step of the ram, the anvil including the anvil is interlocked by the interlocking of the other ram integrated cam, the lever and the rotating means. A terminal crimping method is also adopted in which the holder is rotated 90 ° and the anvil is positioned in front of the device.

[0009]

Operation: As the ram moves up, the shear blade lifting lever is driven by the second cam. The lever for raising and lowering the shear blade pushes down the shear blade to disconnect the terminal from the lateral chain terminal. The terminal is placed on the terminal guide of the anvil holder. Then, as the ram descends, the lever for turning the anvil holder is driven by the third cam. The lever for turning the anvil holder causes the anvil holder to move 90 degrees by interlocking the rotating means.
° Rotate. The terminal on the anvil holder is located below the crimper, the anvil is located below the terminal, and the terminal is crimped when the ram descends.

[0010]

1 to 6 show an embodiment of a terminal crimping device according to the present invention. The terminal crimping device 1 takes in the lateral chain terminal 2 from the rear (back side) of the device 1 (see FIG.
2 shows a side view of the device 1, the front side of the device including the crimper (upper mold) 3 is located on the right side in the drawing), the ram 4
By interlocking the cam and lever using the lifting and lowering of the terminal, feeding the terminal, disconnecting the terminal 7 from the lateral chain terminal 2, reversing the anvil holder 6 supporting the anvil (lower die) 5 by 90 °, and Crimping is performed within one cycle of raising and lowering the ram 4. The crimping of the terminal 7 is performed by the anvil holder 6
When it rotates 90 ° toward the front of the device (Figs. 2, 5,
6) between the anvil 5 in the anvil holder 6 and the crimper 3.

In FIGS. 1 and 2, the terminal feed lever 9 provided on the frame 8 on the outer side of the ram is swung forward and backward by the first cam 10 (FIG. 2) as the ram 4 descends. The first cam 10 is provided integrally with the ram, and drives the terminal feed lever 9 via a cam follower 11 and a shaft 12 connected to the follower 11. The terminal feed lever 9 has an intermediate pin 15
It is swingably supported by and is urged by a tension spring 13 so that the tip claw portion 14 side is located rearward as shown in FIG.

In FIGS. 1 and 2, a shear blade elevating lever 16 for disconnecting a terminal is swingably provided on a frame 8 outside the ram. The shear blade raising / lowering lever 16 is driven by a second cam 17 exposed on the outside of the ram. Like the first cam 10, the second cam 17 has a mountain portion 17a protruding rearward, and the mountain portion 1
And a skirt portion 17b extending upward from 7a.

Further, the shear blade lifting lever 16
Has a cam follower 18 for the second cam 17 at one end and is connected to a straight first link 20 having an intermediate portion supported by a pin 19 and a pin 22 at the other end of the first link 20,
The intermediate bent portion is composed of an L-shaped second link 21 supported by a pin 23. The distal end 21a of the second link 21
Is a shear blade 24 by an engaging means such as a pin (not shown).
It is connected to. The tip end of the first link 20 is biased by a spring 25 toward the cam 17.

At the top dead center position of the ram 4 in FIG. 1, the cam follower 18 is located at the peak of the second cam 17, the first link 20 is vertically positioned downward, and the tip end 21a of the second link 21 is shear. It is located horizontally below the blade 24. Further, when the ram 4 in FIG. 2 is in the lowered state, the cam follower 18 is located at the hem portion 17b of the second cam 17, and the first link 20 swings backward on the pin 22 side due to the spring bias, and accordingly, the second link 21. Is rotated and the tip end 21a is lifted obliquely upward from the horizontal state of FIG. Then, as described below, the shear blade 24 is pulled up by the upward rotation of the second link 21, and the shear blade 24 is pushed down by the downward rotation of the second link 21 to disconnect the terminal 7.

The shear blade 24 is located on one side (lateral side) of the apparatus 1 as shown in FIGS. 1 and 2, and is supported by the outer blade 26 and biased upward by the spring 27 as shown in FIGS. , Can be slid up and down. As shown in FIG. 7, the second link 21 is rotatably supported by the outer blade 26 by a pin 23. As shown in FIG. 8, the shear blade 24 has a horizontal groove 29 through which the chain band 28 of the horizontal chain terminal 2 is inserted, and the blade portion 30 is formed at the tip of the groove 29 at a right angle.

A terminal guide 31 can be positioned adjacent to the side (inside) of the shear blade 24. The terminal guide 31 is provided on the anvil holder 6, and the anvil holder 6 can be turned by 90 ° together with the terminal guide 31. The terminal guide 31 is located below the shear blade 24 at the top dead center, and has a conductor crimping piece 32 a (FIG. 8) and a covering crimping piece 32.
It has a groove 33 capable of supporting the crimping portion 32 of the terminal 7 including b and a blade portion 34 (FIG. 9) facing the blade portion 30 and perpendicular to the tip of the terminal guide. Then, the rotation of the second link 21 lowers the shear blade 24 as shown in FIG. 9, and the chain band 28 is sheared by the sliding contact between the two blade portions 30 and 34.

That is, when the ram 4 in FIG. 2 is lowered,
As shown in FIG. 8, the shear blade 24 is located at the top dead center, and the chain band 28 of the horizontal chain terminal 2 is inserted into the groove 29. In this state, the terminal guide 31 is positioned 90 ° in phase with the shear blade 24. Then, as the ram 4 in FIG. 1 rises,
The shear blade 24 is pushed down by the second link 21,
At the same time when the chain strip 28 is cut, the terminal 7 is connected to the terminal guide 3
It is set on 1. In FIG. 7, reference numeral 5 indicates the anvil when the ram is raised. Crimp part 3 of terminal 7 on anvil 5
2 can be located.

Terminal 7 set on terminal guide 31
As the ram 4 descends, the third cam 35
The lever 36, the rack 37, and the pinion 38 cooperate with each other to rotate the anvil holder 6 so that the anvil holder 6 is inverted by 90 ° and positioned on the front side of the apparatus 1. 3 and 5 show the side surface on the opposite side to FIGS.

In FIGS. 3 and 5, the ram 4 is provided with a third cam 35 having a rearwardly facing mountain portion 35a, and an anvil holder which is straight with respect to the third cam 35 via a cam follower 40 and a horizontal shaft 41. A turning lever 36 is provided. The swiveling lever 36 has an intermediate portion swingably supported by a pin 43, one end connected to a shaft 41 by a pin 42, the other end connected to a rack 37 by a pin 44, and a spring 45 for urging in a cam direction. It is possible to swing back and forth. The rack 37 extends forward and meshes with a pinion gear 38 that is integral with the anvil holder 6. The rack 37
And the pinion 38 constitute a rotating means.

At the top dead center position of the ram shown in FIG. 3, the cam follower 40 is located at the top of the third cam 35, the lever 36 and the rack 37 are located forward, and the anvil holder 6 has its terminals as shown in FIG. The guide 31 is located on the shear blade side. Then, as the ram 4 in FIG. 5 descends, the cam follower 40 is positioned at the hem portion 35b of the third cam 35, the lever 36 swings backward, the rack 37 is pulled backward, and the pinion 38 rotates. Then, as shown in FIG. 6, the anvil holder 6 rotates 90 °, and the terminal guide 31 is located on the front side of the apparatus. In FIGS. 4 and 6, the horizontal chain terminal 2 is supplied from the rear of the device 1 toward the shear blade 24.

As shown in FIG. 10, the anvil holder 6 is mounted on the base frame 46 via a bearing 47, and the rotating shaft 4 is provided.
It is rotatably supported by 8. A pinion 38 is concentrically provided on the rotary shaft 48 below the anvil holder 6, and the rotary shaft 48, the pinion 38, and the anvil holder 6 are provided.
And are fixed together by bolts 49. The anvil holder 6 includes a holder base 50 for support and a bolt 51 (see FIG. 1).
1), the holder base 50 is the anvil holder 6
It can be rotated together with.

As shown in FIGS. 10 to 12, the anvil holder 6 is provided with a pair of the terminal guides 31 urged upward by springs 52 so as to be slidable in the vertical direction. Figure 11
As described above, the interval between the terminal receiving portions 31a formed to project above the pair of terminal guides 31 is formed to be slightly wider than the anvil 5, and the anvil 5 is positioned between the pair of terminal receiving portions 31a so that the anvil 5 can enter. At the top dead center position of the terminal guide 31 in FIG. 11, the tip of the anvil 5 is located below the terminal receiving portion 31a.

The crimp portion 32 of the terminal 7 is set between the pair of terminal guides 31 as shown in FIGS. 11 and 13, and the electric contact portion 7a of the terminal 7 extends to the vicinity of the rotation center of the anvil holder 6. Then, as the crimper 3 descends, the terminal guide 31
Is pushed by the tip of the crimper 3 and slides downward to escape, and between the crimper 3 and the anvil 5, the crimping portion 3 of the terminal 7 is
An electric wire 53 is crimp-connected to 2. The crimped electric wire with terminal is taken out of the apparatus 1 by means not shown. Then, the cycle of FIGS. 1, 2, 3 and 5 is repeated.

[0024]

As described above, according to the present invention, since the terminal separated from the horizontal chain terminal can be rotated by 90 ° and crimped on the front side of the apparatus, the horizontal chain terminal can be viewed from the side of the apparatus. Instead, it can be taken in from the rear, so that the terminal reel can be arranged in the rear of the device with the reel radial direction and the device front-back direction aligned, and the wire reel does not protrude beyond the front width dimension of the device. . As a result, a plurality of terminal crimping devices can be placed close to each other and installed in parallel, thus saving space in the factory.
Further, since the horizontal chain terminal is not twisted, the terminal is surely supplied onto the anvil without tilting or twisting, and reliable terminal crimping is performed.

[Brief description of drawings]

FIG. 1 is a left side view showing a terminal crimping device according to the present invention.

FIG. 2 is a left side view when the ram is descending.

FIG. 3 is a right side view of the terminal crimping device.

FIG. 4 is a plan view corresponding to FIG.

FIG. 5 is a right side view of the terminal crimping device when the ram is descending.

FIG. 6 is a plan view corresponding to FIG.

FIG. 7 is a front view showing a shear blade.

FIG. 8 is a side view showing the shear blade.

FIG. 9 is a side view showing a state where the shear blade is pushed down.

FIG. 10 is a side view showing the anvil holder.

FIG. 11 is a front view showing the anvil holder.

FIG. 12 is a front view of the crimper pushing down the terminal guide.

FIG. 13 is a plan view showing an anvil holder.

FIG. 14 is a front view showing a conventional terminal crimping device.

FIG. 15 is a plan view showing another conventional example.

FIG. 16 is a plan view showing a lateral chain terminal.

FIG. 17 is a rear view of the horizontal chain terminal.

[Explanation of symbols]

 2 Horizontal chained terminal 3 Crimper 4 Ram 5 Anvil 6 Anvil holder 7 Terminal 9 Terminal feed lever 10 First cam 16 Shear blade lifting lever 17 Second cam 24 Shear blade 31 Terminal guide 35 Third cam 37 Rack 36 For rotating anvil holder Lever 38 Pinion

Claims (4)

[Claims] 1. A vertically movable ram, a crimper fixed to the ram, an anvil for the crimper, a terminal feed lever for sending a lateral chain terminal on the anvil, and a terminal feed lever provided on the ram. In a terminal crimping device equipped with a first cam for driving and a shear blade for separating the terminal from the lateral chain terminal, a second cam and a third cam provided on the ram, and the first cam connected to the shear blade. A sheer blade lifting lever driven by two cams, a rotatable anvil holder having the anvil and a terminal guide which is adjacent to the anvil and is vertically movable under spring bias. A terminal crimping device, comprising: an anvil holder turning lever that is driven by three cams and that is connected to a turning means to turn the anvil holder by 90 °. 2. The shear blade elevating lever is composed of a straight first link and an L-shaped second link, and the tip end of the second link is connected to the shear blade, and the shear blade when the ram is raised. The terminal crimping device according to claim 1, wherein the terminal crimping device rotates in a pushing-down direction. 3. The terminal feed lever is located behind the ram having the crimper on the front side so as to be swingable in the front-rear direction,
The shear blade is located on the side of the anvil holder, the terminal guide and the anvil are adjacent to the shear blade at the initial position of the anvil holder at the top dead center of the ram, and the anvil holder rotates 90 ° at the bottom dead center of the ram. The terminal crimping device according to claim 1 or 2, wherein the terminal crimping device is located on the front side of the device. 4. A horizontal chain terminal is fed onto the anvil by a terminal feed lever, and the terminal is separated from the horizontal chain terminal by a shear blade, and the anvil and a crimper located on the front side of the device and moving up and down integrally with the ram. In the terminal crimping method of crimping between terminals, the lateral chain terminals are supplied from the back side of the device, and in the step of raising the ram, the shear blade is operated in conjunction with the ram integrated cam and lever, and in the step of lowering the ram. A terminal crimping method characterized in that the anvil holder including the anvil is rotated by 90 ° by interlocking the other ram-integrated cam, the lever and the rotating means to position the anvil in front of the apparatus.