WO2022044648A1

WO2022044648A1 - Crimping device

Info

Publication number: WO2022044648A1
Application number: PCT/JP2021/027554
Authority: WO
Inventors: 友朗小暮; 幹也櫻井; 洋之池谷; 誠司宍倉
Original assignee: タイコエレクトロニクスジャパン合同会社
Priority date: 2020-08-28
Filing date: 2021-07-26
Publication date: 2022-03-03
Also published as: JP2022039208A

Abstract

Provided is a crimping device that effectively presses down a coated electric wire that is crimped by an insulation barrel of a terminal, wherein formation of gaps toward the inside enclosed by the insulation barrel and the protrusion of the coating is inhibited.　The crimping device comprises crimpers 10, 30 supported by a ram 2, and an anvil 60 affixed to a base 3. Further, accompanying a descending operation of the ram 1, via the crimpers 10, 30 and the anvil 60, a tip part 81 where a wire is exposed and a neighboring coated part 82 of a coated electric wire 80 are crimped to a terminal 70. This crimping device comprises a wire depressor 20 and an insulation depressor 40. The wire depressor 20 and the insulation depressor 40 are, along with the crimpers 10, 30, supported by the ram 2, and accompanying the descending operation of the ram 2, the wire depressor 20 and the insulation depressor 40 press each of the tip part 81 and the coated part 82 of the coated electric wire 80 against the terminal 70.

Description

Crimping device

The present invention relates to a crimping device for crimping a coated wire to a terminal at the tip where the wire is exposed and the covered covered portion adjacent to the tip.

The crimping device is equipped with a crimper fixed to the ram and an anvil fixed to the base. The terminals crimped using this crimping device are formed with a wire barrel and an insulation barrel that open upward. When crimping the coated wire to the terminal, the terminal is placed on the anvil, and the tip and the covering of the coated wire are arranged on the wire barrel and the insulation barrel of the terminal. Then, as the ram descends, the wire barrel and the insulation barrel are plastically deformed by being sandwiched between the crimper and the anvil from above and below, so that the coated electric wire is crimped to the terminal.

In this crimping, if the coated wire placed on the terminal is floating from the terminal, a gap is formed inside surrounded by the terminal after crimping, or the coating is in a state of protruding from the enclosure of the terminal after crimping. , May cause quality deterioration. In particular, when the size of the insulation barrel is smaller than the size of the covering part, the covering part can enter the entrance of the insulation barrel but does not reach the bottom of the insulation barrel, and a gap is formed on the bottom side. There is an increased risk of being struck.

In recent years, the terminal arrangement has been required to have a narrower pitch, and the insulation barrel has also become smaller. Therefore, the covering portion having the same diameter as before is arranged in the smaller insulation barrel, and it is desired to solve the above-mentioned problem of quality deterioration.

Here, Patent Documents 1 to 5 propose a structure in which a covered electric wire is pressed against a terminal for crimping.

Patent Document 1 discloses a structure in which a wire at a tip portion is pressed by a member named an electric wire retainer.

Further, Patent Document 2 discloses a structure in which a covering portion is pressed by a member named an electric wire retainer.

Further, Patent Document 3 discloses a structure in which the terminals are pressed by an insertion member when the carrier connecting the terminals is cut to prevent the terminals from bending.

Further, Patent Document 4 discloses that the covering portion is pressed by the electric wire pressing portion.

Further, Patent Document 5 discloses a structure in which the position of the wire with respect to the wire barrel is adjusted by holding the electric wire and the wire is pushed into the wire barrel.

Japanese Unexamined Patent Publication No. 1995-50191 JP-A-1998-255949 Japanese Unexamined Patent Publication No. 2006-120423 Japanese Unexamined Patent Publication No. 2013-89554 Japanese Unexamined Patent Publication No. 7-50190

Even if the tip where the wire is exposed is pressed during crimping, the risk that the covering will not reach the bottom of the insulation barrel and a gap will be formed will not be eliminated.

Therefore, when crimping, consider pressing the covering part. However, the member that presses the covering portion cannot be arranged at the same position as the insulation crimper that is in charge of crimping the covering portion in the longitudinal direction of the coated electric wire. For this reason, the covering portion may be bent at the position where the insulation barrel acts as a resistance to the presser, and the floating at the portion crimped by the insulation crimper may not be sufficiently eliminated.

In view of the above circumstances, an object of the present invention is to provide a crimping device that effectively presses the covering portion and suppresses the formation of the above-mentioned gaps and the protrusion of the coating.

The crimping device of the present invention that achieves the above object is
It has a crimper fixed to the ram and an anvil fixed to the base, and as the ram descends, the wire is exposed at the tip of the covered wire by the crimper and the anvil and at the tip thereof. A crimping device that crimps adjacent coverings to terminals.
It is characterized by being supported by the ram with a crimper and equipped with a wire depressor and an insulation depressor that press each of the tip and the covering to the terminal as the ram descends.

The crimping device of the present invention includes a wire depressor and an insulation depressor. Therefore, in crimping, both the tip portion and the covering portion are pressed against the terminal, and the portion of the covering portion sandwiched between them, which is actually crimped, is reliably pressed against the terminal.

Here, it is preferable that the wire depressor and the insulation depressor press each of the tip portion and the covering portion against the terminal prior to crimping by the crimper and the anvil.

By pressing the end portion and the covering portion against the terminal prior to crimping, the formation of the above-mentioned gap and the protrusion of the coating can be effectively suppressed.

Further, it is preferable that the wire depressor presses the tip portion against the terminal before the insulation depressor presses the covering portion against the terminal.

If the covering part is pressed first, there is a risk that bending will occur at the pressed part. Then, once the bending occurs, the tip portion where the wire is exposed is weaker than the covering portion, so that the bending may not be sufficiently eliminated even if the tip portion is pressed later. Therefore, by pressing the tip portion first, the occurrence of floating in the insulation barrel portion becomes more certain.

Further, in the crimping device of the present invention, the wire depressor has a first support portion supported by the ram, a first pressing portion for pressing against the terminal, and a first support portion and a first pressing portion. It has a first spring part that intervenes between them,
The insulation depressor has a second support portion supported by the ram, a second pressing portion that presses against the terminal, and a second spring portion that is interposed between the second support portion and the second pressing portion. It is preferable to have.

By interposing the first spring part or the second spring part, the tolerance of the dimensional error and the mounting position error of the wire depressor and the rational depressor is widened as compared with the structure without the first spring part or the second spring part. , The risk of damaging the covered wire is reduced.

Further, in the crimping device of the present invention,
The wire depressor has a first frame body provided with a first pressing portion, and the wire depressor has a first frame body.
The insulation depressor has a second frame provided with a second press.
It is preferable that the vertical dimension of the first pressing portion is longer than the vertical dimension of the second pressing portion.

By satisfying this relationship, the exposed tip of the wire is pressed before the covering.

Further, in the crimping device of the present invention, the vertical dimension between the center of the first through hole and the first pressing portion is the vertical dimension between the center of the second through hole and the second pressing portion. It is preferably longer than the dimensions.

By satisfying such a relationship, the exposed tip portion of the wire is surely pressed before the covering portion. Further / or, in the crimping device of the present invention, the vertical dimension between the center of the first through hole and the first pressing portion is the vertical dimension between the center of the second through hole and the second pressing portion. It is preferable that the dimension is longer than the dimension obtained by adding the difference in height between the upper surface of the tip portion and the upper surface of the covering portion of the coated electric wire arranged at the terminal.

By satisfying such a relationship (and therefore), the exposed tip of the wire is surely pressed before the covering.

In addition, the wire depressor
It has a first frame body provided with a first pressing portion, and has a first frame body.
The first support portion has a first insertion hole through which a shaft supported by the ram is inserted, and is arranged inside the first frame body away from the first frame body.
The first spring portion is arranged inside the first frame body and one end is fixed to the first frame body and the other end is fixed to the first support portion and extends while drawing a curve between one end and the other end. It preferably consists of a first leaf spring.

With this structure, for example, a wire depressor having a thickness of 0.5 mm or less and having a first spring portion can be realized.

Also, like this, the insulation depressor,
It has a second frame body provided with a second pressing portion, and has a second frame body.
The second support portion has a second insertion hole through which the shaft supported by the ram is inserted, and is arranged inside the second frame body away from the second frame body.
The second spring portion is arranged inside the second frame body and one end is fixed to the second frame body and the other end is fixed to the second support portion and extends while drawing a curve between one end and the other end. It preferably consists of a second leaf spring.
With this structure, for example, an insulation depressor having a thickness of 0.5 mm or less and having a second spring portion can be realized.

According to the above invention, a crimping device that suppresses the formation of gaps and the protrusion of the coating is realized.

It is an exploded perspective view of the main part of the crimping apparatus of this invention. It is a perspective view of the main part of the crimping apparatus of this invention in an assembled state. It is a plan view (A), a left side view (B), a front view (C), and a right side view (D) of the main part in an assembled state. 3 (B) is an enlarged view (A) of the portion of the region R1 shown by the dotted line, FIG. 3 (C) is an enlarged view (B) of the portion of the region R2 shown by the dotted line, and FIG. 3 (D) is shown by the dotted line. It is an enlarged view (C) of the part of the region R3. It is a perspective view of the subassembly in a state where the coated electric wire is pressed against a terminal by a wire depressor and an insulation depressor. 5A is a plan view (A), a left side view (B), a front view (C), and a right side view (D) of the subassembly in the state shown in FIG. FIG. 6 (B) is an enlarged view (A) of the portion of the region R4 shown by the dotted line, FIG. 6 (C) is an enlarged view of the portion of the region R5 shown by the dotted line (B), and FIG. 6 (D) is shown by the dotted line. It is an enlarged view (C) of the part of the region R6. In the enlarged cross-sectional view (A) of the portion of the region R5 shown in FIG. 6 (C) along the arrow AA shown in FIG. 6 (C), and the arrows BB shown in FIG. 6 (A). It is an enlarged sectional view (B) of the part of the region R5 shown in FIG. 6 (C) along. It is a perspective view of the subassembly in the raised state after crimping. 9 is a plan view (A), a left side view (B), a front view (C), and a right side view (D) of the subassembly in the state shown in FIG. 10 (B) is an enlarged view (A) of the portion of the region R7 shown by the dotted line, FIG. 10 (C) is an enlarged view (B) of the portion of the region R8 shown by the dotted line, and FIG. 10 (D) is shown by the dotted line. It is an enlarged view (C) of the part of the region R9. It is a schematic cross-sectional view of the part of the insulation barrel after crimping.

Hereinafter, embodiments of the present invention will be described.

FIG. 1 is an exploded perspective view of a main part of the crimping device of the present invention. FIG. 1 also shows terminals and covered wires.

Further, FIG. 2 is a perspective view of the main part of the crimping device of the present invention in an assembled state.

Further, FIG. 3 is a plan view (A), a left side view (B), a front view (C), and a right side view (D) of the main part in the assembled state.

Further, FIG. 4 shows an enlarged view (A) of the portion of the region R1 shown by the dotted line in FIG. 3 (B), an enlarged view (B) of the portion of the region R2 shown by the dotted line in FIG. It is an enlarged view (C) of the part of the region R3 shown by the dotted line in D).

FIG. 1 shows a wire crimper 10, a wire depressor 20, an insulation crimp 30, and an insulation depressor 40.

As shown in FIG. 4C, the terminal 70 is provided with a wire barrel 71 and an insulation barrel 72. The wire barrel 71 and the insulation barrel 72 of the terminal 70 are placed on the anvil 60. The anvil 60 is fixed on the base 3 shown by the alternate long and short dash line in FIG. Then, on the wire barrel 71 and the insulation barrel 72 of the terminal 70 arranged on the anvil 60, the end portion 81 of the coated electric wire 80 on which the wire is exposed and the covering portion 82 adjacent to the tip portion 81 thereof are provided. Be placed.

The wire crimper 10 invites the wire barrel 71 into the notch-shaped crimping portion 12 provided at the lower end thereof, plastically deforms it according to the shape of the crimping portion 12, and crimps the tip portion 81 of the coated electric wire 80 to the terminal 70. do.

The insulation crimper 30 invites the insulation barrel 72 into the notch-shaped crimping portion 32 provided at the lower end thereof, plastically deforms it according to the shape of the crimping portion 32, and is adjacent to the tip portion 81 of the coated electric wire 80. The covering portion 82 is crimped to the terminal.

Here, the wire crimper 10 and the insulation crimper 30 in the present embodiment correspond to an example of the crimper according to the present invention in a configuration in which they are combined.

Further, the wire depressor 20 is arranged between the wire crimper 10 and the insulation crimper 30, and presses the tip portion 81 of the coated electric wire 80 against the terminal 70.

Further, the insulation depressor 40 is arranged at a position where the insulation crimper 30 is sandwiched between the insulation depressor 40 and the wire depressor 20, and the covering portion 82 of the coated electric wire 80 is pressed against the terminal 70.

Each of the wire crimp 10, the wire depressor 20, the insulation crimp 30, and the insulation depressor 40 is formed with through

holes

11,21,31,41 through which a support shaft (not shown) is inserted. Of these through

holes

11,21,31,41, only the through hole 31 of the insulation lymph 30 is a vertically long hole. An annular member 50 is fitted into the through hole 31 of the insulation lymph 30. The annular member 50 is formed with a circular through hole 51 having the same dimensions as the other through

holes

11,21,41. The thickness of the annulus member 50 is slightly thicker than the thickness of the insulation lymph 30. As a result, the insulation crimper 30 can move up and down relative to the wire depressor 20 and the insulation depressor 40 in a state of being sandwiched between the wire depressors 20 and the insulation depressors 40.

The wire crimp 10, the wire depressor 20, the insulation crimp 30, and the insulation depressor 40 are sequentially stacked in adjacent states as shown in FIGS. 2 and 3. Here, the set of the wire crimper 10, the wire depressor 20, the insulation crimper 30, and the insulation depressor 40 in the stacked state is referred to as a subassembly 1. A support shaft (not shown) is inserted through the through holes 11 to 51, and the subassembly 1 is fixed to the ram 2 whose outline is shown by the alternate long and short dash line in FIG. The ram 2 moves up and down in the direction indicated by the arrow UD, and when ascending, the terminal 70 and the covered electric wire 80 are arranged on the anvil 60, and crimping is performed by the descending operation.

The subassembly 1 often includes an element (not shown here) that cuts the carrier of the terminal at the time of crimping, but it is irrelevant to the theme of the present embodiment and is described here. Illustrations and explanations are omitted.

Here, the wire depressor 20 includes a window frame-shaped frame that borders the central space. At the lower end of the frame 22, a pressing portion 23 having a recessed shape and pressing the tip portion 81 of the covered electric wire 80 against the terminal 70 is provided. Further, the wire depressor 20 includes an annular support portion 24 in which the through hole 21 is formed. The support portion 24 is arranged inside the frame body 22 at a position away from the frame body 22. A support shaft (not shown) is inserted through the through hole 21 and has a role of supporting the wire depressor 20 by the ram 2.

Here, the through hole 21, the frame body 22, the pressing portion 23, and the supporting portion 24 of the wire depressor 20 are the first through hole, the first frame body, the first pressing portion, and the first, respectively, as referred to in the present invention. 1 Corresponds to each example of the support portion.

And further, this wire depressor 20 is equipped with a leaf spring 25. The leaf spring 25 is arranged inside the frame body 22, one end of which is fixed to the frame body 22 and the other end of which is fixed to the support portion 24, and extends while drawing a curve between one end and the other end. There is. The leaf spring 25 corresponds to an example of the first spring portion according to the present invention. When the wire depressor 20 descends with the support shaft inserted through the through hole 21, the descending force is transmitted from the support portion 24 to the pressing portion 23 via the leaf spring 25, and the coated electric wire is transmitted by the pressing portion 23. The tip 81 of the 80 is pressed against the terminal 70. By adopting such a shape, the wire depressor 20 realizes an extremely thin spring-like member such as 0.5 mm or less.

Further, the insulation depressor 40 also has a structure substantially similar to that of the wire depressor 20 except for detailed differences in shape. That is, the insulation depressor 40 also includes a frame body 42 having a pressing portion 43 at the lower end portion. The pressing portion 43 presses the covering portion 82 of the coated electric wire 80 against the terminal 70.

Further, the insulation depressor 40 includes an annular support portion 44 in which a through hole 41 is formed and a through hole 41 is formed inside the frame 42 and is arranged at a position away from the frame 42. ing. A support shaft is inserted through the through hole 414, and has a role of supporting the insulation depressor 40 by the ram 2.

Here, the through hole 41, the frame body 42, the pressing portion 43, and the supporting portion 44 of the insulation depressor 40 are the second through hole, the second frame body, and the second pressing portion, respectively, as referred to in the present invention. It corresponds to each example of the second support part.

And further, this insulation depressor 40 is equipped with a leaf spring 45. The leaf spring 45 is arranged inside the frame body 42, one end thereof is fixed to the frame body 42 and the other end portion is fixed to the support portion 44, and the leaf spring 45 extends while drawing a curve between the one end and the other end. There is. This leaf spring 25 corresponds to an example of the second spring portion referred to in the present invention. When the insulation depressor 40 descends with the support shaft inserted through the through hole 41, the descending force is transmitted from the support portion 44 to the pressing portion 43 via the leaf spring 45, and is covered by the pressing portion 43. The covering portion 82 of the electric wire 80 is pressed against the terminal 70. By adopting such a shape, the insulation depressor 40 realizes an extremely thin spring-like member such as 0.5 mm or less.

Here, the wire depressor 20 and the insulation depressor 40 move up and down while being supported by the ram 2 by the same support shaft together with the wire crimper 10 and the insulation crimp 30. Then, the wire depressor 20 and the insulation depressor 40 come into contact with the tip end 81 and the covering portion 82 of the coated electric wire 80 before the crimping by the wire crimp 10 and the insulation crimp 30 starts in the scene where the ram 2 descends. And press them against the terminal 70. Then, the wire crimper 10 and the insulation crimper 30 press the coated electric wire 80 in the state where the tip portion 81 and the covering portion 82 are pressed against the terminal 70 to the terminal 70.

Next, the wire depressor 20 and the insulation depressor 40 are compared.

Both the wire depressor 20 and the insulation depressor 40 descend according to the descending motion of the ram 2.

The wire is exposed at the tip 81 of the covered electric wire 80. Therefore, the upper surface of the tip portion 81 is located at a position lower than the upper surface of the covering portion 82. However, the pressing portion 23 of the wire depressor 20 is lower than the pressing portion 43 of the insulation depressor 40 beyond the difference in height between the tip portion 81 of the coated electric wire 80 and the covering portion 82. There is. Therefore, when the ram 2 descends, the tip portion 81 of the coated electric wire 80 is pressed against the wire depressor 20 first, and then the coated portion 82 of the coated electric wire 80 is pressed against the insulation depressor 40. By being pressed in this order, bending of the covering portion 82 of the coated electric wire 80 at the portion pressed against the insulation depressor 40 is prevented, and the covering portion 82 is crimped by the insulation barrel 30. The portion is securely pressed against the terminal 70.

In this embodiment, the wire depressor 20 is used to press the tip 81 of the coated electric wire 80 against the wire depressor 20 first, and then press the covering portion 82 of the coated electric wire 80 against the insulation depressor 40. When the dimensions of the frame body 22 of No. 22 and the frame body 42 of the insulation depressor 40 in the vertical direction (directions of arrows UD shown in FIG. 2) are compared, the wire depressor 20 has a longer dimension.

Further, in one embodiment, the dimension between the wire depressor 20 through hole 21 and the lower end pressing portion 23 is larger than that of the through hole 41 of the insulation depressor 40 and the lower end pressing portion 43. The dimension between them is longer.

Further, since the wire is exposed at the tip portion 81 of the covered electric wire 80, the upper surface of the tip portion 81 is at a position lower than the upper surface of the covered portion 82. In each of the embodiments of the present disclosure, this is also taken into consideration. That is, in the case of the above-described embodiment, the vertical dimension between the center of the through hole 21 of the wire depressor 20 and the pressing portion 23 is the center of the through hole 41 of the insulation depressor 40 and the pressing portion 43. It is further longer than the dimension in the vertical direction between the above and the dimension obtained by adding the difference in height between the upper surface of the tip portion 81 and the upper surface of the covering portion 82 of the coated wire 80 arranged at the terminal 70.

In the above-described embodiment, by satisfying such a dimensional relationship (also), it is ensured that the tip portion 81 of the coated electric wire 80 is pressed first, and then the coated portion 82 of the coated electric wire 80 is pressed. It has been realized.

Follow the above crimping operation while referring to the drawing.

FIG. 5 is a perspective view of the subassembly in a state where the covered electric wire is pressed against the terminal by the wire depressor and the insulation depressor.

Further, FIG. 6 is a plan view (A), a left side view (B), a front view (C), and a right side view (D) of the subassembly in the state shown in FIG.

Further, FIG. 7 is an enlarged view (A) of the portion of the region R4 shown by the dotted line in FIG. 6 (B), an enlarged view (B) of the portion of the region R5 shown by the dotted line in FIG. 6 (C), and FIG. It is an enlarged view (C) of the part of the region R6 shown by the dotted line in D).

Further, FIG. 8 is shown in an enlarged cross-sectional view (A) and FIG. 6 (A) of the portion of the region R5 shown in FIG. 6 (C) along the arrow AA shown in FIG. 6 (C). FIG. 6 (C) along the arrow BB
It is sectional drawing (B) of the part of the region R5 shown in). However, in FIG. 8B, the side surface of the terminal and the covered electric wire is shown instead of the cross section.

From the state shown in FIGS. 1 to 4 in which the ram 2 is in the raised position, the ram 2 is lowered to reach the state shown in FIGS. 5 to 8. In this state, the wire barrel 71 and the insulation barrel 72 of the terminal 70 shown in FIG. 8 maintain the shape before crimping. That is, in this state, crimping has not yet started. However, the wire depressor 20 and the insulation depressor 40 are pressed against the tip portion 81 and the covering portion 82 of the coated electric wire 80, respectively. As described above, the pressing order is such that the wire depressor 20 is pressed against the tip 81 first, followed by the insulation depressor 40 against the covering 82.

The ram 2 further descends via the states shown in FIGS. 5 to 8, crimping is performed, and the ram 2 rises after crimping.

FIG. 9 is a perspective view of the subassembly in an elevated state after crimping.

Further, FIG. 10 is a plan view (A), a left side view (B), a front view (C), and a right side view (D) of the subassembly in the state shown in FIG.

11 is an enlarged view (A) of the portion of the region R7 shown by the dotted line in FIG. 10 (B), an enlarged view (B) of the portion of the region R8 shown by the dotted line in FIG. 10 (C), and FIG. 10 (B). It is an enlarged view (C) of the part of the region R9 shown by the dotted line in C).

The state after crimping is shown here. That is, here, as shown in FIGS. 11B and 11C, the insulation barrel 72 of the terminal 70 has a rounded shape after crimping.

In the crimping device of the present embodiment, crimping is executed according to the above steps.

FIG. 12 is a schematic cross-sectional view of the portion of the insulation barrel after crimping. Here, FIG. 12A is a schematic view in the case of using a crimping device not provided with a wire depressor and an insulation depressor, and corresponds to a comparative example to be compared with the present invention. Further, FIG. 12B is a schematic view when the crimping device of the present embodiment provided with the wire depressor and the insulation depressor is used, and corresponds to the embodiment of the present invention.

The coated electric wire 80 has a wire 83 and a coating 84 surrounding the wire 83.

In the case of the comparative example shown in FIG. 12 (A), a gap S is formed in the inner lower portion of the wire barrel 72 after crimping, and a part 84a of the coating 84 protrudes from the wire barrel 72.

On the other hand, in the case of the comparative example shown in FIG. 12B, almost no void is formed inside the wire barrel 72, and the protrusion of the coating 84 is suppressed. As described above, the crimping device of the present embodiment includes the wire depressor 20 and the insulation depressor 40, thereby improving the quality of crimping.

In this embodiment, the wire depressor 20 and the insulation depressor 40 having the shapes shown in FIG. 1 are adopted. However, the wire depressor and the insulation depressor are not limited to those having the shapes shown here, as long as the tip portion 81 and the covering portion 82 of the coated electric wire 80 can be effectively pressed against the terminal 70. Further, the wire depressor and the insulation depressor may press the tip portion 81 and the covering portion 82 of the coated electric wire 80 against the terminal 70 without interposing a spring portion.

1 Subassembly (crimping device)
2 Ram 3 Base 10 Wire Cryptom (Cryptom)
11 Through hole 12 Pressure contact part 20 Wire depressor 21 Through hole 22 Frame body 23 Pushing part 24 Support part 25 Leaf spring (spring part)
30 Insulation Crypto (Crypto)
31 Through hole 32 Pressure welding part 40 Insulation depressor 41 Through hole 42 Frame body 43 Pushing part 44 Support part 45 Leaf spring 50 Circular member 51 Through hole 60 Anvil 70 Terminal 71 Wire barrel 72 Insulation barrel 80 Coated wire 81 Tip Part 82 Covered part 83 Wire 84 Covered

Claims

The crimper (10) fixed to the ram (2) and the anvil (60) fixed to the base are provided, and the covered electric wire (80) formed by the crimper and the anvil as the ram descends. , A crimping device (1) for crimping a tip portion (81) with an exposed wire (83) and a coated portion (82) adjacent to the tip portion to be crimped to a terminal (70). ,
The ram is provided with a wire depressor (20) and an insulation depressor (40) that are supported together with the crim and press each of the tip portion and the covering portion against the terminal as the ram descends. A crimping device characterized by.
The crimping according to claim 1, wherein the wire depressor and the insulation depressor press each of the tip portion and the covering portion against the terminal prior to crimping by the crimper and the anvil. Device.
The crimping device according to claim 2, wherein the wire depressor presses the tip portion against the terminal before the insulation depressor presses the covering portion against the terminal.
The wire depressor has a first support portion (24) supported by the ram, a first pressing portion (23) that presses against the terminal, the first support portion, and the first pressing portion. It has a first spring portion (25) intervening between the two.
The insulation depressor has a second support portion (44) supported by the ram, a second pressing portion (43) that presses against the terminal, the second support portion, and the second pressing portion. The crimping device according to any one of claims 1 to 3, further comprising a second spring portion (25) interposed between the portions.
The wire depressor has a first frame body (22) provided with the first pressing portion.
The insulation depressor has a second frame body (42) provided with the second pressing portion.
The crimping device according to claim 4, wherein the vertical dimension of the first pressing portion is longer than the vertical dimension of the second pressing portion.
The vertical dimension between the center of the first through hole and the first pressing portion is longer than the vertical dimension between the center of the second through hole and the second pressing portion. The crimping device according to claim 4 or 5.
The vertical dimension between the center of the first through hole and the first pressing portion is the vertical dimension between the center of the second through hole and the second pressing portion, and further, the above. The crimping device according to claim 6, wherein the covered electric wire arranged at the terminal is further longer than the dimension including the difference in height between the upper surface of the tip portion and the upper surface of the coated portion.
The wire depressor
It has a first frame body (22) provided with the first pressing portion, and has a first frame body (22).
The first support portion has a first insertion hole (21) through which a shaft supported by the ram is inserted, and is arranged inside the first frame body away from the first frame body.
The first spring portion is arranged inside the first frame body, one end thereof is fixed to the first frame body, and the other end is fixed to the first support portion, and between the one end and the other end. The crimping device according to claim 4, further comprising a first leaf spring that extends while drawing a curve.
The insulation depressor
It has a second frame body (42) provided with the second pressing portion, and has a second frame body (42).
The second support portion has a second insertion hole through which a shaft supported by the ram is inserted, and is arranged inside the second frame body away from the second frame body.
The second spring portion is arranged inside the second frame body, one end thereof is fixed to the second frame body, and the other end is fixed to the second support portion, and between the one end and the other end. The crimping device according to claim 4 or 8, wherein the crimping device comprises a second leaf spring that extends while drawing a curve.