CN216750611U

CN216750611U - Jaw assembly of crimping pliers

Info

Publication number: CN216750611U
Application number: CN202220208627.6U
Authority: CN
Inventors: 王余宝
Original assignee: Zhejiang Dianjin New Material Technology Co ltd
Current assignee: Zhejiang Dianjin New Material Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-14
Anticipated expiration: 2032-01-24

Abstract

The application relates to the technical field of crimping pliers and discloses a jaw assembly of crimping pliers, which comprises a first pliers block and a second pliers block, wherein the first pliers block and the second pliers block respectively comprise an installation part and a crimping part, the installation part is arranged on the pliers body of the crimping pliers, the crimping part can be detachably connected to one side of the installation part, and when the first pliers block is abutted against the second pliers block, a crimping hole for a terminal to stretch into is formed between the crimping part of the first pliers block and the second pliers block. This application has the effect that can satisfy not unidimensional terminal crimping demand.

Description

Jaw assembly of crimping pliers

Technical Field

The application relates to the technical field of crimping pliers, in particular to a jaw assembly of crimping pliers.

Background

The crimping pliers are one of the common tools for crimping a terminal and a wire, and can generate pressure on the terminal coated outside the wire during working, so that the terminal deforms and clamps the wire, the tight connection between the wire and the terminal is realized, and the crimping pliers are widely applied to line construction and maintenance in the power industry.

In the related art, chinese patent No. CN211829485U discloses a crimping pliers, which comprises a jaw and a body engaged with the jaw, wherein the body comprises a fixed handle, a movable handle rotationally connected to the fixed handle, and a driving member for driving the movable handle to rotate. The jaw comprises a first clamp block arranged on the fixed handle and a second clamp block arranged on the movable handle, and a wire pressing hole for placing a terminal is formed when the first clamp block is meshed with the second clamp block.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the wire pressing hole formed by the jaw in the wire pressing pliers is constant in size, the wire pressing pliers can only be suitable for terminals with several specific sizes matched with the wire pressing hole, the crimping requirements of terminals with other sizes are difficult to meet, and the wire pressing pliers are to be improved.

SUMMERY OF THE UTILITY MODEL

In order to satisfy the crimping demand of different size terminals, this application provides a crimping pliers's subassembly of keeping silent.

The application provides a crimping pliers's subassembly of keeping silent adopts following technical scheme:

the utility model provides a crimping pliers's subassembly of keeping silent, includes first clamp splice and second clamp splice, first clamp splice, second clamp splice all include installation department and crimping portion, the installation department sets up on crimping pliers's pincers body, crimping portion can dismantle the one side of connection at the installation department, works as when first clamp splice and second clamp splice butt, be formed with the wire pressing hole that supplies the terminal to stretch into between the crimping portion of first clamp splice and second clamp splice.

Through adopting above-mentioned technical scheme, crimping portion can be dismantled with the installation department and be connected rather than fixed linking to each other, and during crimping unidimensional terminal, can correspond crimping portion assembly with the difference on the installation department to form and treat the line ball hole of crimping terminal size adaptation, the practicality is strong. When the line is constructed or overhauled, workers only need to carry installation parts with various sizes, and do not need to carry a plurality of line pressing pliers with line pressing holes with different sizes, and construction load is small.

Optionally, one side that crimping portion is close to the installation department is provided with the dovetail block, set up the dovetail that supplies the dovetail block to slide to stretch into on the installation department, the dovetail is the open end that supplies the dovetail block to slide to stretch into for blind end, the other end along self extending direction's one end, be equipped with between installation department and the crimping portion and be used for blockking the limit structure that the dovetail block shifted out the dovetail.

By adopting the technical scheme, when the crimping part and the installation part are connected, the dovetail block is only required to be slid into from the open end of the dovetail groove until the dovetail block is abutted against the closed end of the dovetail groove, and the dovetail block is blocked by the limiting structure to move out of the dovetail groove, so that the operation is simple and convenient.

Optionally, limit structure includes interference fit's stopper and spacing groove, the crimping portion has seted up the spout near the terminal surface of installation department, the extending direction perpendicular to forked tail piece's of spout length direction, the one end of stopper slides and sets up in the spout, the spacing groove is seted up at the installation department near the terminal surface of crimping portion, and the spacing groove intercommunication sets up the open end at the dovetail.

Through adopting above-mentioned technical scheme, the forked tail piece moves to the blind end butt back with the dovetail, slides the stopper to the one side that is close to the spacing groove for stopper and spacing groove interference fit, stopper this moment support and keep out the one side that is close to the dovetail open end at the forked tail piece, play and block that the forked tail piece removes the dovetail, improve crimping portion and installation department and be connected the effect of stability.

Optionally, one end of the limiting block, which is close to the limiting groove, is provided with a guide inclined plane.

Through adopting above-mentioned technical scheme, the effect that the direction inclined plane played the direction when the stopper stretches into the spacing groove helps improving the grafting efficiency of stopper and spacing groove to improve the assembly efficiency of crimping portion and installation department.

Optionally, a through hole is formed in a groove wall of the limiting groove, and the through hole and the guide inclined plane are located on the same side of the limiting block; when the limiting block extends into the limiting groove, the through hole is communicated with the guide inclined plane.

Through adopting above-mentioned technical scheme, behind the stopper embedding spacing groove, operating personnel can stretch into the member through hole and with the contact of direction inclined plane to with the stopper to keeping away from one side ejection in spacing groove, in order to avoid stopper and spacing groove joint tension and influence the split of crimping portion and installation department.

Optionally, an elastic clamping block is arranged on the side wall of the limiting block, and a clamping groove in interference fit with the clamping block is formed in the groove wall of the sliding groove; when the clamping block is embedded into the clamping groove, the limiting block does not exceed the sliding groove.

By adopting the technical scheme, before the crimping part and the mounting part are assembled and disassembled, the clamping block and the clamping groove can be in interference fit, so that the limiting block is clamped in the sliding groove, and the dovetail groove is prevented from being moved in or out due to the fact that the limiting block is exposed.

Optionally, the widths of the limiting block and the sliding groove are gradually reduced from the closed end to the open end of the dovetail groove, and one side of the sliding groove, which is far away from the closed end of the dovetail groove, is communicated with the side wall of the crimping part.

Through adopting above-mentioned technical scheme, can only follow the extending direction removal of spout when the stopper stretches into the spout, help stopper and spacing groove to align, fixture block and draw-in groove to align. One side of spout switches on with the outside of crimping portion, has the effect that makes things convenient for operating personnel to remove the stopper in the outside.

Optionally, a pressing block is arranged on the pressing part of the first clamp block, a pressing groove for the pressing block to stretch into is formed in the pressing part of the second clamp block, when the first clamp block is abutted against the second clamp block, the pressing block stretches into the pressing groove and forms the pressing line hole, and a concave arc surface is arranged at one end, close to the pressing groove, of the pressing block.

Through adopting above-mentioned technical scheme, the crimping pliers during operation puts into the indent of second pincers piece with the terminal earlier, makes first pincers piece turn to again with second pincers piece butt, and the briquetting can stretch into the indent and extrude the terminal for the terminal deformation compresses tightly the wire of wearing to establish in the terminal, thereby realizes the crimping of terminal and wire. The setting of concave cambered surface can effectively increase the area of contact of briquetting and terminal, improves the briquetting and to the effect of pressing of terminal.

Optionally, transition steps are arranged on the groove walls of the pressing block and the pressing groove.

Through adopting above-mentioned technical scheme, when the briquetting stretched into the indent, the terminal atress can produce the deformation of different degrees in transition ladder department to make the wire receive the squeezing action of different degrees, help improving the joint strength of terminal and wire.

Optionally, a fixing rib is integrally formed on a groove wall of the pressure groove, and one end of the fixing rib, which is close to the opening of the pressure groove, is a tip.

Through adopting above-mentioned technical scheme, during the crimping terminal, the pointed end of fixed arris can imbed in the lateral wall of terminal for the lateral wall of terminal is inside sunken and produce the deformation of certain degree, thereby further improves the joint strength of terminal and wire.

In summary, the present application includes at least one of the following beneficial technical effects:

when the terminals with different sizes are crimped, different crimping parts can be correspondingly assembled on the installation part to form wire pressing holes matched with the sizes of the terminals, so that crimping requirements of the terminals with different sizes are met, and the terminal crimping device is high in practicability;

when the crimping part and the mounting part are connected, the dovetail block is moved into the dovetail groove, and then the limiting block is in interference fit with the limiting groove, so that the limiting block blocks the dovetail block from being moved out of the dovetail groove, and the operation is simple and convenient; the clamping block is matched with the clamping groove to position the limiting block in the sliding groove so as to prevent the limiting block from being exposed to influence the disassembly and the assembly of the crimping part and the mounting part;

when first pincers piece and second pincers piece meshing, the briquetting can produce pressure to the terminal that lies in the indent for the terminal deformation compresses tightly the wire, and the most advanced of fixed arris can block into the lateral wall of terminal this moment, so that the terminal is local invaginated and further compress tightly the wire, thereby improves the connection stability of terminal and wire.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an exploded schematic view of an embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of a second jaw of the embodiment of the present application when the crimping portion is separated from the mounting portion.

Description of reference numerals:

1. a first clamp block; 11. briquetting; 111. a concave arc surface; 2. a second clamp block; 21. an installation part; 211. mounting holes; 212. a dovetail groove; 213. a closed end; 214. an open end; 22. a crimping part; 221. a dovetail block; 222. a chute; 223. a card slot; 23. pressing a groove; 231. fixing the edge; 3. a wire pressing hole; 4. a transition step; 5. a limiting structure; 51. a limiting block; 511. anti-skid lines; 512. a guide slope; 513. a clamping block; 52. a limiting groove; 521. a through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a jaw assembly of crimping pliers.

Referring to fig. 1 and 2, the jaw assembly of the crimping pliers comprises a first pliers block 1 and a second pliers block 2 which are made by adopting a powder metallurgy process, the first pliers block 1 and the second pliers block 2 respectively comprise a mounting part 21 and a crimping part 22 which are detachably connected, a mounting hole 211 is formed in the mounting part 21, and the mounting hole 211 can be extended into a connecting piece such as a pin or a bolt which is matched with the mounting hole 211 so as to connect the mounting part 21 to the body of the crimping pliers. The pliers body comprises a fixed handle and a movable handle which are hinged to each other, and after the pliers body is assembled in place, the first pliers block 1 is connected to the movable handle of the pliers body, and the second pliers block 2 is connected to the fixed handle of the pliers body. When the crimping pliers work, the movable handle can drive the second pliers block 2 to move towards the first pliers block 1, so that the first pliers block 1 is abutted and meshed with the second pliers block 2.

Referring to fig. 1 and 2, a plurality of pressing blocks 11 are integrally formed on one side of the pressing part 22 of the first clamp block 1 away from the installation part 21, pressing grooves 23 equal to the pressing blocks 11 in number are formed in the end face of the pressing part 22 of the second clamp block 2 away from the installation part 21, and each pressing groove 23 can be respectively used for the pressing blocks 11 adjacent to the pressing groove 23 to extend into. When the first clamp block 1 is engaged with the second clamp block 2, the pressing block 11 is embedded into the pressing groove 23 adjacent to the pressing block, so that a pressing line hole 3 for a terminal to extend into is formed. The present embodiment shows the structure of the three pressing grooves 23, and the three pressing grooves 23 are different in size, so that the crimping pliers can crimp terminals of three different sizes. In other embodiments, other numbers of indentations 23 may be provided.

Referring to fig. 1 and 2, when the terminal is pressed, the terminal with the wire inserted therein is inserted into the pressure groove 23, and then the pressing block 11 is moved toward the pressure groove 23 to gradually press the terminal, so that the terminal is deformed and the wire is pressed. In order to increase the contact area between the press block 11 and the terminal, the end face of the press block 11 close to the press groove 23 in the embodiment is a concave arc surface 111, and the concave arc surface 111 can abut against the circumferential side wall of the terminal, so that the crimping effect of the press block 11 on the terminal is improved.

Referring to fig. 2, transition steps 4 are disposed on the walls of the pressing block 11 and the pressing groove 23, so that the surface of the terminal can form a step shape when the terminal is pressed, thereby preventing the wire from moving relative to the terminal in a direction parallel to the insertion direction of the wire. The groove wall of the pressing groove 23 is integrally formed with a fixing rib 231, the length direction of the fixing rib 231 is parallel to the length direction of the pressing groove 23, and the end of the fixing rib 231 close to the opening of the pressing groove 23 is a tip. The tip of the fixing rib 231 can extend into the circumferential side wall of the terminal when the terminal is crimped, so that the side wall of the terminal is recessed and presses the wire, the wire is prevented from rotating circumferentially relative to the terminal, and the connection strength of the terminal and the wire is further improved.

Referring to fig. 2 and 3, dovetail blocks 221 are integrally formed on both sides of the crimping portion 22 of the first and second blocks 1 and 2 close to the mounting portion 21, a dovetail groove 212 into which the dovetail block 221 slidably extends is formed on an end surface of the mounting portion 21 close to the crimping portion 22, an extending direction of the dovetail groove 212 is parallel to a length direction of the dovetail block 221, and both ends of the dovetail block 221 and the dovetail groove 212 close to the crimping portion 22 are small ends. One end of the dovetail groove 212 in the extending direction thereof is a closed end 213, and the other end thereof is an open end 214, and the dovetail block 221 can extend into the dovetail groove 212 along the open end 214 of the dovetail groove 212, so that the crimping part 22 and the mounting part 21 can be spliced.

Referring to fig. 2 and 3, in order to prevent the dovetail block 221 from moving out of the dovetail groove 212, a limiting structure 5 is disposed between the mounting portion 21 and the crimping portion 22, the limiting structure 5 includes a limiting block 51 and a limiting groove 52, which are in interference fit, and the limiting block 51 in this embodiment is made of a material capable of generating elastic deformation, such as PVC plastic. The end surface of the crimping part 22 close to the mounting part 21 is provided with a sliding groove 222 corresponding to the open end 214 of the dovetail groove 212, the extending direction of the sliding groove 222 is perpendicular to the length direction of the dovetail block 221, and one end of the limiting block 51 far away from the mounting part 21 is arranged in the sliding groove 222 in a sliding manner. The retainer groove 52 is opened on the end surface of the mounting portion 21 near the crimping portion 22, and the retainer groove 52 communicates with the open end 214 of the dovetail groove 212. After the dovetail block 221 is moved to abut against the closed end 213 of the dovetail groove 212, the operator can move the limiting block 51 to be in interference fit with the limiting groove 52, so that the limiting block 51 is used for blocking the dovetail block 221 from moving out of the dovetail groove 212.

Referring to fig. 2 and 3, the cross sections of the limiting block 51, the limiting groove 52 and the sliding groove 222 are all set to be trapezoidal, and the width of each trapezoid gradually decreases from the closed end 213 to the open end 214 of the dovetail groove 212, so that the limiting block 51 is difficult to move out of the sliding groove 222 or the limiting groove 52 from the closed end 213 to the open end 214 of the dovetail groove 212. In order to facilitate the operator to push the stopper 51, the side of the stopper 51 away from the closed end 213 of the dovetail groove 212 is provided with the anti-slip threads 511, the side of the sliding groove 222 away from the closed end 213 of the dovetail groove 212 is communicated with the outer wall of the press-connecting part 22, and when the press-connecting part 22 and the mounting part 21 are assembled and disassembled, the operator can directly push the stopper 51 by hand at the outside, so that the operation is simple and convenient.

Referring to fig. 2 and 3, in order to facilitate the insertion of the stopper 51 into the stopper groove 52, a guide inclined plane 512 is disposed at one end of the stopper 51 close to the stopper groove 52, and the guide inclined plane 512 can reduce the width of the proximal end of the stopper 51 and the stopper 51, and plays a role in guiding when the stopper 51 is inserted into the stopper groove 52. The wall of the limiting groove 52 away from the closed end 213 of the dovetail groove 212 is provided with a through hole 521, and the guide inclined surface 512 of the through hole 521 is located on the same side of the limiting block 51, so that when the limiting block 51 extends into the limiting groove 52, the through hole 521 can be communicated with the guide inclined surface 512, so that an operator can extend a rod into the through hole 521, and the rod is in contact with the guide inclined surface 512 and pushes the limiting block 51 to the side away from the limiting groove 52.

Referring to fig. 2 and 3, in order to prevent the limiting block 51 from being exposed to affect the dovetail block 221 moving into or out of the dovetail groove 212, a fixture block 513 is integrally formed on one side of the limiting block 51 away from the limiting groove 52, the fixture block 513 is made of the same material as the limiting block 51, and a clamping groove 223 in interference fit with the fixture block 513 is formed in the bottom wall of the sliding groove 222. When the latch 513 is inserted into the slot 223, the stopper 51 is received in the sliding groove 222 and is not exposed, and the assembling and disassembling of the press-connecting part 22 and the mounting part 21 are not affected.

The implementation principle of the jaw assembly of the crimping pliers in the embodiment of the application is as follows: when the press-connection part 22 and the installation part 21 are assembled, the dovetail block 221 firstly extends from the open end 214 of the dovetail groove 212 until the dovetail block 221 abuts against the closed end 213 of the dovetail groove 212, and then the limiting block 51 is embedded into the limiting groove 52 to block the dovetail block 221 from moving out of the dovetail groove 212, so that the connection between the press-connection part 22 and the installation part 21 is realized. When the crimping part 22 and the mounting part 21 are detached, the stopper 51 is moved out of the stopper groove 52, the fixture block 513 is inserted into the fixture groove 223, and the dovetail block 221 is moved out of the dovetail groove 212. When crimping different size terminal, can correspond and change different crimping portion 22 on installation department 21 to the line ball hole 3 of shaping and terminal size adaptation, thereby make the crimping pincers can satisfy the crimping demand of not unidimensional terminal, the practicality is strong.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a crimping pliers's subassembly of keeping silent, includes first clamp block (1) and second clamp block (2), its characterized in that: first clamp splice (1), second clamp splice (2) all include installation department (21) and crimping portion (22), installation department (21) set up on the pincers of crimping pliers, crimping portion (22) can dismantle the one side of connecting in installation department (21), works as when first clamp splice (1) and second clamp splice (2) butt, be formed with between crimping portion (22) of first clamp splice (1) and second clamp splice (2) and supply the terminal to stretch into crimp hole (3).

2. The jaw assembly of a crimping pliers, as claimed in claim 1, wherein: one side that crimping portion (22) are close to installation department (21) is provided with dovetail block (221), offer dovetail (212) that supply dovetail block (221) to slide and stretch into on installation department (21), open end (214) that blind end (213), the other end stretched into for supplying dovetail block (221) to slide are followed to dovetail (212) along the one end of self extending direction, be equipped with between installation department (21) and crimping portion (22) and be used for blockking limiting structure (5) that dovetail block (221) shifted out dovetail (212).

3. The jaw assembly of a crimping pliers as claimed in claim 2, wherein: spacing structure (5) include interference fit's stopper (51) and spacing groove (52), the terminal surface that crimping portion (22) are close to installation department (21) has seted up spout (222), the extending direction perpendicular to forked tail piece (221) of spout (222) length direction, the one end of stopper (51) slides and sets up in spout (222), spacing groove (52) are seted up in installation department (21) and are close to the terminal surface of crimping portion (22), and spacing groove (52) intercommunication sets up open end (214) at dovetail (212).

4. The jaw assembly of a crimping pliers as claimed in claim 3, wherein: one end of the limiting block (51) close to the limiting groove (52) is provided with a guide inclined plane (512).

5. The jaw assembly of a crimping pliers according to claim 4, wherein: a through hole (521) is formed in the groove wall of the limiting groove (52), and the through hole (521) and the guide inclined plane (512) are located on the same side of the limiting block (51); when the limiting block (51) extends into the limiting groove (52), the through hole (521) is communicated with the guide inclined plane (512).

6. The jaw assembly of a crimping pliers as claimed in claim 3, wherein: an elastic clamping block (513) is arranged on the side wall of the limiting block (51), and a clamping groove (223) in interference fit with the clamping block (513) is formed in the groove wall of the sliding groove (222); when the clamping block (513) is embedded into the clamping groove (223), the limiting block (51) does not exceed the sliding groove (222).

7. The jaw assembly of a crimping pliers as claimed in claim 3, wherein: the widths of the limiting block (51) and the sliding groove (222) are gradually reduced from the closed end (213) to the open end (214) of the dovetail groove (212), and one side, away from the closed end (213) of the dovetail groove (212), of the sliding groove (222) is communicated with the side wall of the pressing part (22).

8. The jaw assembly of a crimping pliers, as claimed in claim 1, wherein: be provided with briquetting (11) on crimping portion (22) of first pincers piece (1), offer indent (23) that supply briquetting (11) to stretch into on crimping portion (22) of second pincers piece (2), work as when first pincers piece (1) and second pincers piece (2) butt, indent (23) and formation are stretched into in briquetting (11) indent (3), the one end that briquetting (11) are close to indent (23) is equipped with concave arc face (111).

9. The jaw assembly of a crimping pliers as claimed in claim 8, wherein: transition steps (4) are arranged on the groove walls of the pressing block (11) and the pressing groove (23).

10. The jaw assembly of a crimping pliers as claimed in claim 8, wherein: a fixing edge (231) is integrally formed on the groove wall of the pressing groove (23), and one end, close to the opening of the pressing groove (23), of the fixing edge (231) is a tip.