Servo motor cable anti-pulling fixing device

By installing protective devices on the servo motor cable and utilizing the tensile force of the square ring block, sliding rod, and spring to buffer the cable, the problem of wear and breakage caused by concentrated force during frequent movement of the servo motor cable is solved, thereby improving the service life of the cable and the stability of the servo motor system.

CN224400816UActive Publication Date: 2026-06-23SHENZHEN QUANXINCHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN QUANXINCHENG TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Servo motor cables are prone to wear and tear or breakage of internal wires due to concentrated stress during frequent movement, which affects their service life and the stability and reliability of the servo motor system.

Method used

A servo motor cable anti-pull fixing device was designed. By installing square ring blocks, sliding rods and through-hole brackets on the cable, and using springs and portable mechanisms for limiting the movement, the pulling force of the cable is buffered, preventing the cable from breaking at the connection between the cable and the servo motor.

Benefits of technology

It enhances the cable's tensile strength, extends its service life, and improves the operational stability and reliability of the servo motor system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of servo motor cable anti-pulling fixing device, it is related to electrical engineering field, the utility model includes servo motor main body, the utility model can manually set the through hole frame on the outer surface of cable main body, until one side is abutted on the one side of square ring block, then the one end of sliding slot lever is installed and fixed on the one side of servo motor main body by means of easy-to-assemble mechanism, so in the use process of cable main body, if be pulled by external force, square ring block will be moved to one end, so as to pull through hole frame to one end in the inner wall of sliding slot lever, spring is stretched, then the reset effect of spring will buffer the tension of cable main body, to reach the effect of preventing cable main body and servo motor main body junction from being pulled, to enhance cable anti-pulling capacity and service life, improve the stability and reliability of servo motor main body system operation.
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Description

Technical Field

[0001] This utility model relates to the field of electrical engineering, and in particular to a servo motor cable anti-pull fixing device. Background Technology

[0002] Servo motor cables are used to connect servo motors to controllers, power supplies, and other related equipment. A servo motor is an electric motor that provides precise control.

[0003] In the context of the rapid development of industrial automation, the servo motor body is the core component for achieving precise motion control. When the servo motor body is running, the cable connecting it to the external equipment needs to frequently follow the movement of the servo motor body. During this process, the cable body will be subjected to a large tensile force, especially at the connection between the cable body and the servo motor body. The cable body is more prone to wear due to the concentrated force, and may even cause the internal wires to break, thereby reducing the service life of the cable and affecting the stability and reliability of the servo motor body system. Utility Model Content

[0004] The technical problem this utility model aims to solve is: In the context of the rapid development of industrial automation, the servo motor body is the core component for achieving precise motion control. When the servo motor body is running, the cable connecting it to external equipment needs to frequently follow the movement of the servo motor body. During this process, the cable body will be subjected to a large tensile force, especially at the connection between the cable body and the servo motor body. The cable body is more prone to wear due to the concentrated force, and may even lead to the breakage of internal wires, thereby reducing the service life of the cable and affecting the stability and reliability of the servo motor body system.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a servo motor cable anti-pull fixing device, including a servo motor body, a cable body is provided on one side of the servo motor body, and a protective device is provided between one side of the servo motor body and one end of the outer surface of the cable body. The protective device can achieve the effect of anti-pull protection for the cable body by installing a square ring block on the cable body, and then limiting the position of the square ring block by a sliding rod and a through hole frame in cooperation with a spring.

[0006] Preferably, the protective device includes a square ring block, wherein the inner wall of the square ring block is fixedly installed on the outer surface of the cable body; two sliding rods, one end of which is provided with a mounting mechanism between it and one side of the servo motor body; a through-hole frame, wherein both ends of the through-hole frame are slidably installed in the inner wall of the sliding rod, and the inner wall is fitted onto the outer surface of the cable body, one side of the through-hole frame abuts against one side of the square ring block, and the inner wall dimension is smaller than the outer surface dimension of the square ring block; and two springs, wherein both ends of the springs are fixedly installed on one side of the inner wall of the sliding rod and one side of the through-hole frame, respectively.

[0007] The effect achieved by the above components is as follows: By setting up a protective device, during the use of the servo motor body, it is usually connected to other external devices or power supplies through the cable body. To prevent breakage or damage at the connection between the cable body and the servo motor body during use, the through-hole bracket can be manually fitted onto the outer surface of the cable body until one side abuts against one side of the square ring block. Then, one end of the slide bar is installed and fixed to one side of the servo motor body using a portable mechanism. At this time, the initial state of the spring is contracted, and one end of the through-hole bracket is slidably stored in the inner wall of the slide bar. In this way, the connection between the cable body and the servo motor body is contracted a certain distance within the inner wall of the two sliding rods. During use, if the cable body is subjected to external pulling force, it will cause the square ring block to move to one end, thereby pulling the through-hole bracket within the inner wall of the sliding rod to one end. The spring is stretched, and its reset action buffers the tension on the cable body, thus achieving the effect of preventing pull at the connection between the cable body and the servo motor body. This enhances the cable's pull resistance and service life, and improves the stability and reliability of the servo motor system.

[0008] Preferably, a limiting ring block is fixedly installed on one side of the through-hole frame, wherein the square ring block is inserted into the inner wall of the limiting ring block.

[0009] The effect achieved by the above components is as follows: by setting a limiting ring block, when one side of the through hole frame abuts against one side of the square ring block, the limiting ring block on one side will be fitted onto the outer surface of the square ring block, so that the wire is not easy to shake in the inner wall of the through hole frame, reducing wear and improving service life.

[0010] Preferably, a support rod is fixedly installed on one side of the inner wall of the slide bar, wherein one end of the support rod passes through the inner wall of the spring and is slidably connected to the inner wall of one end of the through hole frame.

[0011] The effect achieved by the above components is that by setting support rods, the inner wall of the spring and the inner walls of both ends of the through-hole bracket can be supported and reinforced, making them more secure and less prone to damage during use.

[0012] Preferably, the length of the through-hole bracket when it slides to its maximum position on the inner wall of the slide bar away from the servo motor body is less than the length of the cable body between one side of the square ring block and one side of the servo motor body.

[0013] The effect achieved by the above components is that even after the through-hole bracket is stretched and slid to its maximum length, it is not easy to pull and damage the connection between the cable body and the servo motor body, thus improving the anti-pull protection effect.

[0014] Preferably, the casual clothing mechanism includes two recessed blocks, one side of which is symmetrically fixedly mounted on one side of the servo motor body. A slot is symmetrically formed on one side of the servo motor body, with one end of a sliding rod inserted into the inner wall of the slot; two circular grooved blocks, one side of which is fixedly mounted on one side of the sliding rod; two limiting rods, one end of which is rotatably mounted on one side of the circular grooved block and the other end inserted into the inner wall of the recessed block; and two torsion springs, the two ends of which are respectively fixedly mounted on one side of the inner wall of the circular grooved block and one side of the limiting rod.

[0015] The effect achieved by the above components is as follows: By setting up a convenient mounting mechanism, when the inner wall of the through-hole bracket is fitted onto the outer surface of the cable body and one side abuts against the side of the square ring block, the limiting rod is first rotated to a certain angle on the circular groove block, causing the torsion spring to deform. Then, one end of the sliding rod can be inserted into the inner wall of the slot. At this time, the limiting rod is released, and under the reset action of the torsion spring, it can be locked into the inner wall of the groove block for limitation and fixation. Thus, the sliding rod can be fixedly installed on one side of the servo motor body, so that it can protect the outer surface of one end of the cable body from pulling. Similarly, when it is necessary to replace the sliding rod and the through-hole bracket, the reverse operation can be performed to disassemble them for easy replacement and maintenance.

[0016] Preferably, a lever is fixedly installed on one side of the limiting rod, and the lever is disposed on the side of the limiting rod near the through hole frame.

[0017] The effect achieved by the above components is that by setting the lever, the contact area on one side of the limit rod can be increased, making it easier to manually rotate the limit rod and facilitating installation and disassembly.

[0018] Preferably, one end of the slide bar has a trapezoidal longitudinal section, and the trapezoidal end of the slide bar is located at the end away from the through hole frame.

[0019] The effect achieved by the above components is that by setting one end of the slide bar in a trapezoidal shape, the area of ​​one end of the slide bar can be reduced, so that it can be quickly aligned with the slot and inserted during installation, which facilitates installation.

[0020] The beneficial effects of this utility model are:

[0021] By setting up a protective device, during the use of the servo motor body, it is usually connected to other external devices or power supplies through the cable body. To prevent breakage or damage at the connection between the cable body and the servo motor body during use, the through-hole bracket can be manually fitted onto the outer surface of the cable body until one side abuts against one side of the square ring block. Then, one end of the slide bar is installed and fixed to one side of the servo motor body using a portable mechanism. At this time, the spring is initially in a contracted state. The one end of the through-hole bracket is slidably stored in the inner wall of the slide bar. This allows the connection between the cable body and the servo motor body to contract a certain distance within the inner walls of the two slide bars. During the use of the cable body, if it is pulled by an external force, it will drive the square ring block to one end, thereby pulling the through-hole bracket to one end within the inner wall of the slide bar. The spring is stretched, and then the spring's reset action will buffer the tension on the cable body, thus achieving the effect of preventing pull at the connection between the cable body and the servo motor body. This enhances the cable's pull resistance and service life, and improves the stability and reliability of the servo motor body system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the servo motor body of this utility model;

[0024] Figure 3 for Figure 2 An enlarged 3D structural diagram at point A in the middle;

[0025] Figure 4 This is a three-dimensional structural diagram of the through-hole bracket of this utility model;

[0026] Figure 5 for Figure 4 A three-dimensional schematic diagram of a local structure.

[0027] Legend: 1. Servo motor body; 2. Protective device; 3. Cable body; 21. Square ring block; 22. Slide rod; 23. Spring; 24. Through hole frame; 25. Limiting ring block; 26. Portable mechanism; 261. Slot; 262. Groove block; 263. Round groove block; 264. Limiting rod; 265. Torsion spring; 266. Paddle; 27. Support rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] In this embodiment:

[0032] Reference Figure 1 The diagram shows a preferred embodiment of the present invention.

[0033] Figures 1-5 The servo motor cable anti-pull fixing device shown includes a servo motor body 1, a cable body 3 is provided on one side of the servo motor body 1, and a protective device 2 is provided between one side of the servo motor body 1 and one end of the outer surface of the cable body 3. The protective device 2 can achieve the effect of anti-pull protection for the cable body 3 by installing a square ring block 21 on the cable body 3, and then limiting the position of the square ring block 21 by a sliding rod 22 and a through hole frame 24 in conjunction with a spring 23.

[0034] Figures 1-5The protective device 2 shown includes a square ring block 21, wherein the inner wall of the square ring block 21 is fixedly installed on the outer surface of the cable body 3; two sliding rods 22, wherein a portable mechanism 26 is provided between one end of the sliding rod 22 and one side of the servo motor body 1; a through-hole frame 24, wherein both ends of the through-hole frame 24 are slidably installed in the inner wall of the sliding rod 22, and the inner wall is sleeved on the outer surface of the cable body 3, one side of the through-hole frame 24 abuts against one side of the square ring block 21, and the inner wall size is smaller than the outer surface size of the square ring block 21; and two springs 23, wherein both ends of the springs 23 are fixedly installed on one side of the inner wall of the sliding rod 22 and one side of the through-hole frame 24, respectively. By setting up the protective device 2, during the use of the servo motor body 1, it is usually connected to other external devices or power supplies through the cable body 3. To prevent breakage or damage at the connection between the cable body 3 and the servo motor body 1 during use, the through-hole bracket 24 can be manually fitted onto the outer surface of the cable body 3 until one side abuts against one side of the square ring block 21. Then, one end of the sliding rod 22 is fixed to one side of the servo motor body 1 using the portable mechanism 26. At this time, the spring 23 is initially in a contracted state, and one end of the through-hole bracket 24 is slidably stored in the inner wall of the sliding rod 22. This allows... This design causes the cable body 3 to contract slightly within the inner walls of the two sliding rods 22 at the connection point with the servo motor body 1. During use, if the cable body 3 is subjected to external pulling force, the square ring block 21 will move to one end, causing the through-hole bracket 24 to pull to one end within the inner walls of the sliding rods 22. The spring 23 will be stretched, and its reset action will buffer the tension on the cable body 3, thus preventing pulling at the connection point between the cable body 3 and the servo motor body 1. This enhances the cable's pull resistance and lifespan, and improves the stability and reliability of the servo motor body 1 system.

[0035] Figures 1-5A limiting ring block 25 is fixedly installed on one side of the through-hole bracket 24, wherein a square ring block 21 is inserted into the inner wall of the limiting ring block 25. By setting the limiting ring block 25, when one side of the through-hole bracket 24 abuts against one side of the square ring block 21, the limiting ring block 25 on one side will be fitted onto the outer surface of the square ring block 21, making it less likely for the wire to shake in the inner wall of the through-hole bracket 24, reducing wear and improving service life. A support rod 27 is fixedly installed on one side of the inner wall of the sliding rod 22, wherein one end of the support rod 27 passes through the inner wall of the spring 23 and slides to connect with the inner wall of one end of the through-hole bracket 24. By setting the support rod 27, the inner wall of the spring 23 and the inner walls of both ends of the through-hole bracket 24 can be supported and reinforced, making them more stable and less prone to damage during use. When the through-hole bracket 24 slides to its maximum position away from the servo motor body 1 within the inner wall of the slide bar 22, its length is less than the length of the cable body 3 between one side of the square ring block 21 and the other side of the servo motor body 1. This ensures that even after the through-hole bracket 24 is stretched and slid to its maximum length, the connection between the cable body 3 and the servo motor body 1 is less likely to be pulled and damaged, thus improving the anti-pull protection effect.

[0036] Figures 1-5 The casual clothing mechanism 26 shown includes two recessed blocks 262, one side of which is symmetrically fixedly mounted on one side of the servo motor body 1. A slot 261 is symmetrically opened on one side of the servo motor body 1, with one end of a sliding rod 22 inserted into the inner wall of the slot 261; two circular slotted blocks 263, one side of which is fixedly mounted on one side of the sliding rod 22; two limiting rods 264, one end of which is rotatably mounted on one side of the circular slotted block 263, and the other end inserted into and abutting against the inner wall of the recessed block 262; and two torsion springs 265, the two ends of which are respectively fixedly mounted on one side of the inner wall of the circular slotted block 263 and one side of the limiting rod 264. By setting up the portable mechanism 26, when the inner wall of the through hole bracket 24 is fitted onto the outer surface of the cable body 3 and one side abuts against the side of the square ring block 21, the limiting rod 264 is first rotated to a certain angle on the circular groove block 263, causing the torsion spring 265 to deform. Then, one end of the sliding rod 22 can be inserted into the inner wall of the slot 261. At this time, the limiting rod 264 is released, and under the reset action of the torsion spring 265, it can be locked into the inner wall of the groove block 262 for limiting and fixing. Thus, the sliding rod 22 can be fixedly installed on one side of the servo motor body 1, so that it can protect the outer surface of one end of the cable body 3 from pulling. Similarly, when it is necessary to replace the sliding rod 22 and the through hole bracket 24, the opposite operation can be performed to disassemble them for easy replacement and maintenance.

[0037] Figures 1-5A lever 266 is fixedly installed on one side of the limiting rod 264, and the lever 266 is located on the side of the limiting rod 264 near the through hole bracket 24. By setting the lever 266, the contact area on one side of the limiting rod 264 can be increased, making it easier to manually rotate the limiting rod 264, and facilitating installation and disassembly. One end of the sliding rod 22 has a trapezoidal longitudinal section, and this trapezoidal end of the sliding rod 22 is located at the end away from the through hole bracket 24. By setting one end of the sliding rod 22 to a trapezoidal shape, the area of ​​one end of the sliding rod 22 can be reduced, allowing it to be quickly aligned with the slot 261 and inserted during installation, thus facilitating installation.

[0038] Working principle: During the use of the servo motor body 1, it is usually connected to other external devices or power supplies through the cable body 3. To prevent breakage or damage at the connection between the cable body 3 and the servo motor body 1 during use, when the inner wall of the through-hole bracket 24 is fitted onto the outer surface of the cable body 3 and one side abuts against one side of the square ring block 21, the limiting rod 264 is first rotated to a certain angle on the circular groove block 263, causing the torsion spring 265 to deform. Then, one end of the sliding rod 22 can be inserted into the inner wall of the slot 261. At this time, the limiting rod 264 is released, and under the reset action of the torsion spring 265, it can be locked into the inner wall of the groove block 262 for limitation and fixation. Thus, the sliding rod 22 can be fixedly installed on one side of the servo motor body 1. From the side, the initial state of spring 23 is contracted, which slides one end of the through-hole bracket 24 into the inner wall of the slide bar 22. This allows the connection between the cable body 3 and the servo motor body 1 to contract a certain distance within the inner wall of the two slide bars 22. During the use of the cable body 3, if it is pulled by an external force, it will drive the square ring block 21 to move to one end, thereby pulling the through-hole bracket 24 to one end within the inner wall of the slide bar 22. The spring 23 is stretched open, and then the restoring action of the spring 23 will buffer the tension of the cable body 3, thereby achieving the effect of preventing the cable body 3 from being pulled at the connection between the servo motor body 1, enhancing the cable's anti-pull capability and service life, and improving the stability and reliability of the servo motor body 1 system operation. When the pulling force on the cable body 3 is removed, the spring 23 will drive the through hole frame 24 to reset and retract into the inner wall of the slide bar 22, thereby squeezing and pushing the square ring block 21 to move towards the servo motor body 1, causing the end of the cable body 3 close to the servo motor body 1 to retract and fold up, providing buffer space for the next pulling.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A servo motor cable anti-pull fixing device, comprising a servo motor body (1), characterized in that: A cable body (3) is provided on one side of the servo motor body (1). A protective device (2) is provided between one side of the servo motor body (1) and the outer surface of one end of the cable body (3). The protective device (2) is used to limit the position of the square ring block (21) by installing a square ring block (21) on the cable body (3) and by using a sliding rod (22) and a through hole frame (24) in conjunction with a spring (23).

2. The servo motor cable anti-pull fixing device according to claim 1, characterized in that: The protective device (2) includes a square ring block (21), wherein the inner wall of the square ring block (21) is fixedly installed on the outer surface of the cable body (3); Two sliding rods (22), with a portable mechanism (26) provided between one end of the sliding rod (22) and one side of the servo motor body (1); Through hole frame (24), wherein the two ends of the through hole frame (24) are respectively slidably installed in the inner wall of the slide bar (22), and the inner wall is sleeved on the outer surface of the cable body (3). One side of the through hole frame (24) abuts against one side of the square ring block (21), and the inner wall size is smaller than the outer surface size of the square ring block (21). Two springs (23) are fixedly installed at both ends on one side of the inner wall of the slide bar (22) and one side of the through hole bracket (24).

3. The servo motor cable anti-pull fixing device according to claim 2, characterized in that: A limiting ring block (25) is fixedly installed on one side of the through-hole frame (24), wherein a square ring block (21) is inserted into the inner wall of the limiting ring block (25).

4. The servo motor cable anti-pull fixing device according to claim 2, characterized in that: A support rod (27) is fixedly installed on one side of the inner wall of the slide bar (22), wherein one end of the support rod (27) passes through the inner wall of the spring (23) and is slidably connected to the inner wall of one end of the through hole frame (24).

5. The servo motor cable anti-pull fixing device according to claim 2, characterized in that: The length of the through-hole bracket (24) when it slides to its maximum position in the inner wall of the slide bar (22) away from the servo motor body (1) is less than the length of the cable body (3) between one side of the square ring block (21) and one side of the servo motor body (1).

6. The servo motor cable anti-pull fixing device according to claim 2, characterized in that: The casual clothing mechanism (26) includes two groove blocks (262), one side of which is symmetrically fixed on one side of the servo motor body (1). The servo motor body (1) has symmetrical slots (261) on one side, and one end of the sliding rod (22) is inserted into the inner wall of the slot (261). Two circular groove blocks (263), one side of which is fixedly mounted on one side of the sliding rod (22); Two limiting rods (264), one end of which is rotatably mounted on one side of the circular groove block (263), and the other end is inserted into and abuts against the inner wall of the recessed block (262); Two torsion springs (265) are fixedly installed at both ends on one side of the inner wall of the circular groove block (263) and one side of the limiting rod (264), respectively.

7. The servo motor cable anti-pull fixing device according to claim 6, characterized in that: A lever (266) is fixedly installed on one side of the limiting rod (264), and the lever (266) is located on the side of the limiting rod (264) near the through hole frame (24).

8. The servo motor cable anti-pull fixing device according to claim 2, characterized in that: The longitudinal section of one end of the slide bar (22) is trapezoidal, and the trapezoidal end of the slide bar (22) is located at the end away from the through hole frame (24).