JP2587889Y2 - Terminal crimping device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a terminal crimping device.
In particular, it relates to an end-feed type terminal crimping device used for crimping vertical chain terminals.

[0002]

2. Description of the Related Art In a terminal crimping device, a crimping portion of a crimp terminal is caulked by an anvil serving as a lower mold and a crimper serving as an upper mold. Conventionally, a terminal crimping device provided with such an anvil and a crimper is disclosed in Japanese Utility Model Application Laid-Open No. 4-55790.

FIG. 8 schematically shows a conventional end-feed type terminal crimping apparatus. In such a terminal crimping device, when the crimp terminal formed continuously in the vertical direction moves onto the convex portion 1a of the anvil 1 via the predetermined groove 3, the crimper 2 is moved into the concave portion 2a. And lowers so as to cover the convex portion 1a. Then, the crimped portion of the crimp terminal is crimped between the convex portion and the concave portion. put it here,
The continuously formed crimp terminal is wound around a reel (not shown) or the like, and is guided from the reel to the projection 1a of the anvil 1 through the inside of the groove 3.

[0004]

In the above-described conventional terminal crimping device, when the continuously formed crimping terminal has a potential meandering strain, the crimping terminal is linearly regulated in the groove 3, but the line is restricted. Since the distal end side is distorted in an oblique direction from the place where the groove 3 has exited, the crimped portion of the crimp terminal protrudes from the protrusion 1a of the anvil 1 which is linearly arranged with the groove 3 and descends from above. There is a problem that the crimper 2 is crushed as shown in FIG. 9 without entering the concave portion 2a.

The present invention has been made in view of the above problems, and has as its object to provide a terminal crimping apparatus capable of accurately caulking a crimp terminal by regulating the crimp terminal to a proper position on an anvil until immediately before crimping. I do.

[0006]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 is characterized in that the crimping terminal formed continuously in the vertical direction is crimped while caulking the end portion between the upper mold and the lower mold. In a terminal crimping device that cuts between terminals, a guide member is arranged at a tip end side of a cutting point with a width of the crimping terminal separated.

[0007] In the invention according to claim 2,
The terminal crimping device according to claim 1, wherein the guide member is movable in parallel with a moving direction of the upper die,
Further, it is configured to be held on the lower mold side while being urged toward the same mold side.

[0008]

In the invention according to claim 1 having the above-mentioned structure, even if the crimp terminal formed continuously has a potential meandering strain, the width of the crimp terminal is separated before the cutting point. Since the guide member is inserted between the guide members, the guide member contacts the guide member on both side surfaces and is held at a correct position.

Further, in the invention according to claim 2,
In the normal case, the crimp terminal protrudes high and makes it difficult for the crimp terminal to protrude from between the two guide members, but if the guide member comes into contact with the upper die when the upper die moves toward the lower die,
The guide member moves while being pushed by the upper mold and does not hinder the movement of the upper mold.

[0010]

As described above, according to the present invention, even when the crimp terminal formed continuously has a potential meandering strain, it is possible to hold the crimp terminal in the correct position between the upper mold and the lower mold. Thus, it is possible to provide a terminal crimping device capable of performing accurate crimping.

Further, according to the present invention, even when the upper mold and the lower mold approach each other at a short distance, the crimp terminal can be easily held at a correct position.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged perspective view of a peripheral portion of a lower die in a terminal crimping apparatus according to an embodiment of the present invention. FIG. 4 shows a crimp terminal 90 used in the present apparatus.
The crimp terminal 90 includes a caulked portion 91 and a contact portion 92 and is formed continuously in the vertical direction.

In FIG. 1, a lower mold 10 has a crimp terminal 90.
Of the contact portion 92 from below and the contact portion 9
The cutter 20 includes a cutter 20 for cutting a connection portion between the second crimp terminal 90 and the crimp portion 91 of the next crimp terminal 90 formed continuously, and an anvil 30 for holding the crimp portion 91 of the crimp terminal 90 from below. As shown in FIG. 2, the cutter 20 has a U-shaped vertical movement guide 21 having an upper opening, and a U-shaped storage space in which the vertical movement guide 21 can move up and down. And a vertical movement guide 2 in the storage space of the cutter body 22.
After the first housing 1 is stored from the front side, a spring 23 for urging the vertical movement guide 21 upward is provided in the storage space. A receiving blade 22a is formed on the rear side of the cutter body 22.

The anvil 30 has a convex portion 30a projecting upward and on which the caulking portion 91 of the crimp terminal 90 is placed. The anvil 30 and the cutter 20 are fixed to the terminal crimping device main body 40 by screws. . At this time, as shown in FIG. 3, the protrusion 30a of the anvil 30 and the opening of the vertical movement guide 21 in the cutter 20 and the terminal crimping device main body 4
The 0 groove 41 is arranged so as to be straight.

On the other hand, the upper die 50 includes a crimper 60 paired with the anvil 30, a shear blade 70 paired with the cutter 20, and a spacer 80 for holding both at a predetermined interval. . Here, the crimper 60 is formed with a concave portion 60a into which the convex portion 30a of the anvil 30 can be inserted with its opening facing downward. The spacer 80 has a first spacer 81 for escaping the stripper 42 for separating the crimp terminal 90 and the crimper 60 after crimping, and a second spacer 81 that comes into contact with the contact portion 92 of the crimp terminal 90 from above when crimping. And a spacer 82.

Next, the operation of the present embodiment having the above configuration will be described. FIG. 5 shows a state in which the upper die 50 is at the uppermost position.
Only one crimp terminal 90 introduced into the 0 groove 41 is sent out. In this feeding, one end of the crimp terminal 90 continuously formed exits the groove 41 and the crimped portion 91
Is performed so as to be on the convex portion 30a of the anvil 30. At this time, the contact portion 92 of the crimp terminal 90 is located between the U-shaped vertical guides 21 and It contacts the inner surfaces of both side walls of the opening.

Therefore, the crimp terminal 9 at the portion that has exited the groove 41
0 is also regulated so as to be arranged on a straight line as in the case of being in the groove 41. Since the groove 41, the opening of the vertical movement guide 21, and the projection 30 a of the anvil 30 are linearly arranged, when the contact portion 92 is linearly regulated by the vertical movement guide 21, the vertical Staking section 9 without moving guide 21
1 is also accurately arranged on the projection 30a of the anvil 30.

When the upper die 50 descends, the concave portion 60a of the crimper 60 descends toward the convex portion 30a of the anvil 30.
Since 1 is accurately arranged on the convex portion 30a, the caulking portion 91 enters the concave portion 60a, and the end of the electric wire C is crimped between the convex portion 30a and the concave portion 60a.

As the crimper 60 descends, the spacer 80 also descends. The second spacer 82 is formed so as to contact the upper surface of the contact portion 92 at the lowermost position, and contacts the upper surface of the vertical movement guide 21 before contacting the contact portion 92. Incidentally, the vertical movement guide 21 is held so as to be vertically movable within the storage space of the cutter body 22.
It is urged by a spring 23 to protrude upward. Therefore, even if the second spacer 82 descends on the vertical guide 21, the vertical guide 21 descends as the second spacer 82 descends. Then, at the lowermost position, the second spacer 82 is in contact with the contact portion 9
2Abuts on the upper surface to prevent twisting and distortion during crimping.

FIG. 6 shows a state in which the upper mold 50 has been lowered to the lowermost position. As shown in the figure, the vertical movement guide 21 is pushed down by the lower surface of the second spacer 82 and is lowered. In this embodiment, the vertical movement guide 21 is configured to move up and down as described above. However, in the case of the type that does not require the function of holding the crimp terminal 90 to the contact portion 92 by the second spacer 82, The vertical movement guide 21 may be a fixed type that does not move up and down. On the other hand, the first spacer 81
Are disposed so as to escape from the stripper 42, and the lower surface of the first spacer 81 is located a minute distance above the stripper 42. The shear blade 70 is provided on the receiving blade 2 formed on the rear side of the cutter body 22.
2a so as to contact the crimp terminals 9 inside and outside the groove 41.
Cut 0. The cutting position is a cutting point.

Thereafter, when the upper die 50 rises, the crimp terminal 90 rises while the crimped portion 91 of the crimp terminal 90 is held in the concave portion 60a of the crimper 60.
2 and comes off the crimper 60. Thus, one step of the crimping operation of the electric wire C is completed. In the above-described embodiment, the contact portion 92 of the crimp terminal 90 is held by the vertical movement guide member 21 of the cutter 20. However, the caulking portion 91 may be held. FIG. 7 shows the structure of an anvil 30 according to another embodiment. In the anvil 30, storage grooves 30b1 and 30b2 are formed on both side surfaces of the protrusion 30a in parallel with the protrusion 30a, and vertically movable guides 31a and 31b capable of moving up and down are formed in the respective storage grooves 30b1 and 30b2. Is housed.
Each vertical movement guide 31a, 31b is a spring 3
Although it is urged upward at 2, it is retained at a predetermined step.

In such a configuration, the continuously formed crimp terminal 90 is sent out by the feed mechanism, and the swaged portion 91 of the crimp terminal 90 that has exited the groove 41 moves onto the protrusion 30 a of the anvil 30. The vertical movement guides 31a and 31b projecting on both sides of the protrusion 30a restrict the position of the protrusion 30a to a middle position. Then, when the crimp terminal 60 is crimped between the anvil 30 and the crimper 60, the vertical movement guides 31a, 31b are pushed into the storage grooves 30b1, 30b2 in conjunction with the lowering operation of the anvil 30. Become. Therefore, each crimping terminal 90 is provided on both sides of the caulking portion 91 immediately before crimping with the protrusions 30 a of the anvil 30.
Since it is regulated to the upper regular position, more accurate crimping can be expected than in the above embodiment.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view around a lower mold in a terminal crimping apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of a cutter body.

FIG. 3 is a top view showing an arrangement state of an anvil, a cutter, and a main body.

FIG. 4 is a perspective view of a crimp terminal.

FIG. 5 is a side view when the upper die is at an uppermost position.

FIG. 6 is a side view when the lower mold is at a lowermost position.

FIG. 7 is a perspective view of an anvil according to another embodiment.

FIG. 8 is a partial perspective view of a conventional terminal crimping device.

FIG. 9 is a perspective view showing a defective state of the crimp terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Lower mold 20 ... Cutter 21 ... Vertical movement guide 22 ... Cutter body 23 ... Spring 30 ... Anvil 30a ... Convex part 30b1, 30b2 ... Storage groove 31a, 31b ... Vertical movement guide 32 ... Spring 40 ... Terminal crimping apparatus main body 50 ... Upper die 60 ... Crimper 70 ... Shear blade 90 ... Crimping terminal

Claims (2)

(57) [Scope of request for utility model registration] In a terminal crimping device for cutting between crimp terminals while crimping the extreme end portion of a crimp terminal formed continuously in the longitudinal direction between an upper die and a lower die, the crimp terminal is located closer to the tip side than the cutting point. A terminal crimping device, wherein a guide member is disposed across the width of the terminal. 2. The terminal crimping device according to claim 1, wherein the guide member is movable in a direction parallel to a moving direction of the upper die, and is urged toward the upper die. A terminal crimping device characterized by being held on a lower mold side.