A cable end crimping tool

By designing a cable end crimping tool with a snap-fit ​​assembly and elastic clamping plate, the problems of cumbersome mold replacement and offset slippage were solved, achieving efficient and stable cable end crimping and improving operational safety and accuracy.

CN224288847UActive Publication Date: 2026-05-26SHENZHEN FUJIAKANG CABLE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN FUJIAKANG CABLE CO LTD
Filing Date
2025-09-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing cable end crimping tools involve cumbersome, time-consuming, and labor-intensive mold changes when processing cable ends of different specifications. Furthermore, the molds are prone to shifting and sliding during the crimping process, affecting accuracy and increasing the risk of injury to operators.

Method used

A cable end crimping tool was designed, which uses a snap-fit ​​assembly to achieve quick disassembly and installation of the crimp connector. Combined with the clamping plate of the elastic assembly and the guide roller of the guide assembly, it ensures stable clamping of the mold and positioning of the cable, and is adaptable to cable ends of different sizes.

Benefits of technology

It improves the versatility and crimping accuracy of the tools, reduces the need for manual support, and lowers the safety risks for operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a cable end crimping tool, relating to the technical field of crimping tools. It includes a crimping pliers head with an installation mechanism for cable end crimping. The installation mechanism includes a positioning component, comprising a connecting block fixed to the front end of the crimping pliers head. This utility model achieves quick disassembly and installation of the crimping connector through a locking component, facilitating the replacement of crimping connectors of different specifications to accommodate different cable ends. Then, two sets of clamping plates in the elastic component, under the elastic force of a first spring and guided by a first telescopic rod, clamp and fix the crimping mold from both sides. Anti-slip grooves on the clamping plates increase friction with the crimping mold, preventing mold slippage during crimping. The spring clamping structure of the elastic component can adapt to crimping molds of different sizes, improving tool versatility, reducing manual support of the crimping mold, and avoiding accidental injury to workers during crimping.
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Description

Technical Field

[0001] This utility model relates to the field of crimping tools, specifically a cable end crimping tool. Background Technology

[0002] In the construction of power engineering, communication lines, and industrial equipment installation, the crimping of cable ends is a crucial step in ensuring the quality of line connections and safe operation. Cable end crimping requires the use of specialized tools to tightly press the cable conductor against the end piece, such as a terminal block or lug, to form a connection structure with excellent conductivity and reliable mechanical strength.

[0003] Existing crimping tools mostly use fixed installation or manual hand-held positioning of crimping dies. When it is necessary to process cable ends of different specifications, the die replacement operation is cumbersome, time-consuming and labor-intensive. Moreover, the die is prone to displacement and slippage during the crimping process, which not only affects the crimping accuracy, but also requires continuous manual support, increasing the risk of operators being accidentally injured by the tool. Therefore, this utility model provides a cable end crimping tool. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cable end crimping tool, which solves the problem that existing tools mostly use fixed installation or manual hand-held positioning methods for crimping molds. When different specifications of cable ends need to be processed, mold replacement is cumbersome, time-consuming and labor-intensive. Moreover, the mold is prone to displacement and slippage during the crimping process, which not only affects the crimping accuracy but also requires continuous manual support, increasing the risk of operators being accidentally injured by the tool.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable end crimping tool, comprising a crimping pliers head, wherein the crimping pliers head is provided with an installation mechanism for cable end crimping processing, the installation mechanism comprising:

[0006] The positioning component includes a connecting block fixed to the front end of the crimping pliers head, a crimping head connected by a snap-fit ​​component on the outer side of the connecting block, and a clamping plate connected by an elastic component inside the crimping head.

[0007] The guide assembly includes a support frame at the lower end of the crimping head, a mounting bracket at one end of the support frame, a guide roller shaft connected to the support assembly inside the mounting bracket, and a guide housing fixed to the side wall of the mounting bracket near the crimping head.

[0008] Preferably, the engaging assembly includes a connecting plate that is fitted to the upper end face of the connecting block, locking plates that are fixed to both sides of the connecting plate, bolts that are connected to the connecting block inside the locking plates, and a pressure joint that is fixedly connected to one end of the connecting plate.

[0009] Preferably, the elastic component includes a first spring disposed on both sides of the pressure joint, a clamping plate fixedly connected to the other end of the first spring, a first telescopic rod disposed on the inner ring of the first spring, and two sets of clamping plates disposed on the inner side of the pressure joint, with the two ends of the first telescopic rod fixedly connected to the clamping plate and the pressure joint respectively.

[0010] Preferably, the clamping surface of the clamping plate is uniformly provided with anti-slip grooves, and the inside of the crimping joint is embedded with a magnetic plate.

[0011] Preferably, the guide housing has a guide groove inside, and the guide groove has a conical structure.

[0012] Preferably, the support assembly includes a second spring disposed at the upper and lower ends inside the mounting bracket, the other end of the second spring being fixed to a connecting bracket, the guide roller shaft being rotatably connected inside the connecting bracket, and a second telescopic rod disposed on the inner ring of the second spring, the two ends of the second telescopic rod being fixedly connected to the connecting bracket and the mounting bracket respectively.

[0013] Beneficial effects

[0014] This utility model provides a cable end crimping tool. Compared with the prior art, it has the following advantages:

[0015] Firstly, this utility model enables quick disassembly and installation of the crimp connector through the snap-fit ​​assembly, facilitating the replacement of crimp connectors of different specifications to adapt to different cable ends. Then, under the elastic force of the first spring, the two sets of clamping plates in the elastic assembly, in conjunction with the guide of the first telescopic rod, clamp and fix the crimping mold from both sides. The anti-slip grooves on the clamping plates increase the friction with the crimping mold, preventing the mold from sliding during the crimping process. The spring clamping structure of the elastic assembly can adapt to crimping molds of different sizes, improving tool versatility, reducing manual support of the crimping mold, and avoiding accidental injury to workers during crimping.

[0016] Secondly, in this invention, the cable passes between the guide rollers inside the mounting bracket and through the conical guide groove inside the guide housing to achieve cable positioning. The second spring in the support assembly applies pressure to the guide rollers through the connecting bracket, causing the upper and lower sets of guide rollers to clamp the cable, ensuring the stability of the cable during crimping and reducing the need for manual support of the other end of the cable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the crimp connector structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the mounting bracket of this utility model.

[0021] In the diagram: 1. Crimping pliers head; 2. Connecting block; 201. Connecting plate; 202. Locking plate; 203. Bolt; 3. Crimping connector; 301. Magnet plate; 302. First spring; 303. First telescopic rod; 304. Clamping plate; 305. Anti-slip groove; 4. Support frame; 401. Mounting bracket; 402. Guide housing; 403. Guide groove; 5. Second spring; 501. Second telescopic rod; 502. Connecting bracket; 503. Guide roller shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution: a cable end crimping tool, including a crimping pliers head 1, the crimping pliers head 1 being provided with an installation mechanism for cable end crimping processing, the installation mechanism including:

[0024] The positioning component includes a connecting block 2 fixed at the front end of the crimping pliers head 1, a crimping head 3 connected by a snap-fit ​​component on the outer side of the connecting block 2, and a clamping plate 304 connected by an elastic component inside the crimping head 3.

[0025] The guide assembly includes a support frame 4 at the lower end of the crimping head 1, a mounting bracket 401 at one end of the support frame 4, a guide roller 503 connected by the support assembly inside the mounting bracket 401, and a guide housing 402 fixed to one side wall of the mounting bracket 401 near the crimping head 3.

[0026] In a preferred embodiment, the engaging assembly includes a connecting plate 201 that is attached to the upper surface of the connecting block 2. Locking plates 202 are fixed to both sides of the connecting plate 201. Bolts 203 are provided inside the locking plates 202 and connected to the connecting block 2. A crimp connector 3 is fixedly connected to one end of the connecting plate 201 and is used for disassembling and installing the crimp connector 3. During installation, the connecting plate 201 at one end of the crimp connector 3 is attached to the upper surface of the connecting block 2, and the two locking plates 202 are aligned with the side walls of the connecting block 2. Then, the bolts 203 are passed through the locking plates 202 and screwed into the threaded holes of the connecting block 2 to achieve quick fixing of the crimp connector 3. During disassembly, the crimp connector 3 and the connecting block 2 are separated by unscrewing the bolts 203 in the opposite direction.

[0027] In a preferred embodiment, the elastic component includes a first spring 302 disposed on both sides of the crimp connector 3, a clamping plate 304 fixedly connected to the other end of the first spring 302, a first telescopic rod 303 disposed on the inner ring of the first spring 302, two sets of clamping plates 304 disposed on the inner side of the crimp connector 3, the two ends of the first telescopic rod 303 being fixedly connected to the clamping plate 304 and the crimp connector 3 respectively, the clamping surface of the clamping plate 304 being uniformly provided with anti-slip grooves 305, and a magnet plate 301 embedded inside the crimp connector 3 for positioning the crimping mold of the cable end. When the cable end is inserted into the crimp connector 3, the magnet plate 301 adsorbs the metal crimping mold, achieving initial positioning.

[0028] The two sets of clamping plates 304 in the elastic component, under the elastic force of the first spring 302 and with the guidance of the first telescopic rod 303, clamp and fix the pressing mold from both sides. The anti-slip grooves 305 on the clamping plates 304 increase the friction with the pressing mold and prevent the mold from sliding during the pressing process. The spring clamping structure of the elastic component can adapt to pressing molds of different sizes and improve the versatility of the tool.

[0029] The magnetic plate 301 and the anti-slip groove 305 work together to increase the friction between the clamping plate 304 and the pressing mold.

[0030] Furthermore, the first telescopic rod 303 ensures the stable movement of the clamping plate 304 and avoids clamping deviation caused by spring deformation.

[0031] In a preferred embodiment, a guide groove 403 is provided inside the guide housing 402. The guide groove 403 has a conical structure. The support assembly includes a second spring 5 disposed at the upper and lower ends inside the mounting bracket 401. The other end of the second spring 5 is fixed to a connecting bracket 502. The guide roller shaft 503 is located inside the connecting bracket 502 and is rotatably connected. A second telescopic rod 501 is disposed in the inner ring of the second spring 5. The two ends of the second telescopic rod 501 are fixedly connected to the connecting bracket 502 and the mounting bracket 401, respectively. It is used to pass the cable through the guide roller shaft 503 and the guide groove 403, support one side of the cable, and press the other end through the pressing mold. The cable passes between the guide roller shafts 503 inside the mounting bracket 401 and through the conical guide groove 403 inside the guide housing 402 to achieve cable positioning. The second spring 5 in the support assembly applies pressure to the guide roller shaft 503 through the connecting bracket 502, so that the upper and lower sets of guide roller shafts 503 clamp the cable.

[0032] The second telescopic rod 501 ensures the stability of the movement direction of the guide roller shaft 503. When the cable passes through, the guide roller shaft 503 rotates with the movement of the cable.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] When using this cable end crimping tool, first install the crimp connector 3 by using the snap-fit ​​assembly, attach the connecting plate 201 at one end of the crimp connector 3 to the upper surface of the connecting block 2, align the locking plates 202 on both sides with the side walls of the connecting block 2, and fix the crimp connector 3 by passing the bolts 203 through the locking plates 202 and screwing them into the threaded holes of the connecting block 2.

[0035] Next, the cable end is crimped. The cable first passes between the guide rollers 503 in the mounting bracket 401, and then passes through the conical guide groove 403 inside the guide housing 402 to achieve initial positioning. The second spring 5 in the support assembly applies pressure to the guide rollers 503 through the connecting bracket 502, so that the upper and lower guide rollers 503 clamp the cable. The second telescopic rod 501 ensures the stable movement of the guide rollers 503. When the cable passes through the guide assembly, the guide rollers 503 rotate with the movement of the cable.

[0036] Subsequently, the cable end is inserted into the crimp connector 3, and the crimping mold is placed inside the crimp connector 3. Initial positioning is achieved by the attraction of the magnetic plate 301. At the same time, the two sets of clamping plates 304 in the elastic component, under the elastic force of the first spring 302 and with the guidance of the first telescopic rod 303, clamp and fix the crimping mold from both sides. The anti-slip grooves 305 on the clamping plates 304 increase the friction with the crimping mold to prevent the mold from sliding during the crimping process. Finally, one end of the cable is supported and positioned by the guide component, and the other end reaches the crimping position. The crimping operation is completed by the crimping mold. If the crimp connector 3 needs to be replaced, the crimp connector 3 and the connecting block 2 can be separated by unscrewing the bolt 203 in the opposite direction.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable end crimping tool, comprising crimping pliers (1), characterized in that: The crimping pliers (1) are provided with a mounting mechanism for cable end crimping processing. The mounting mechanism includes: The positioning component includes a connecting block (2) fixed at the front end of a crimping pliers head (1), a crimping head (3) connected by a snap-fit ​​component is provided on the outside of the connecting block (2), and a clamping plate (304) connected by an elastic component is provided inside the crimping head (3). The guide assembly includes a support frame (4) at the lower end of the crimping pliers (1), a mounting bracket (401) at one end of the support frame (4), a guide roller (503) connected by the support assembly inside the mounting bracket (401), and a guide housing (402) fixed on the side wall of the mounting bracket (401) near the crimping head (3).

2. The cable end crimping tool according to claim 1, characterized in that: The engaging assembly includes a connecting plate (201) that is attached to the upper surface of the connecting block (2). Locking plates (202) are fixed on both sides of the connecting plate (201). Bolts (203) are provided inside the locking plates (202) and connected to the connecting block (2). The crimping head (3) is fixedly connected to one end of the connecting plate (201).

3. The cable end crimping tool according to claim 1, characterized in that: The elastic component includes a first spring (302) arranged on both sides of the crimp connector (3), and a clamp (304) fixedly connected to the other end of the first spring (302). The inner ring of the first spring (302) is provided with a first telescopic rod (303). The clamp (304) is provided with two sets of clamps on the inner side of the crimp connector (3). The two ends of the first telescopic rod (303) are fixedly connected to the clamp (304) and the crimp connector (3) respectively.

4. The cable end crimping tool according to claim 1, characterized in that: The clamping surface of the clamping plate (304) is uniformly provided with anti-slip grooves (305), and the inside of the crimping joint (3) is inlaid with a magnet plate (301).

5. A cable end crimping tool according to claim 1, characterized in that: The guide housing (402) has a guide groove (403) inside, and the guide groove (403) has a cone-shaped structure.

6. A cable end crimping tool according to claim 1, characterized in that: The support assembly includes a second spring (5) disposed at the upper and lower ends inside the mounting bracket (401). The other end of the second spring (5) is fixed to a connecting bracket (502). The guide roller shaft (503) is located inside the connecting bracket (502) and is rotatably connected. The inner ring of the second spring (5) is provided with a second telescopic rod (501). The two ends of the second telescopic rod (501) are fixedly connected to the connecting bracket (502) and the mounting bracket (401) respectively.