Clamp for porcelain insulator

By combining a servo motor-driven bidirectional screw and an infrared transmitter with a hydraulic cylinder detection component, automatic adjustment and real-time detection of porcelain insulator clamps are achieved. This solves the problems of insufficient manual adjustment and detection in existing technologies, and improves the ease of operation and welding quality of porcelain insulator clamps.

CN224457762UActive Publication Date: 2026-07-03JIANGXI XINHANG ELECTRIFICATION INSULATOR MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI XINHANG ELECTRIFICATION INSULATOR MFG
Filing Date
2025-06-27
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing porcelain insulator clamps require manual adjustment to accommodate insulators of different widths, which is cumbersome to operate and lacks material defect detection tools, affecting welding results and practicality.

Method used

The system employs a servo motor to drive a bidirectional screw and clamping assembly, automatically adjusting the clamping force. It also combines an infrared transmitter and a hydraulic cylinder to detect material defects, enabling automatic adaptation to the insulator width and real-time monitoring of the welding process.

Benefits of technology

It improves the stability and positioning accuracy of insulator clamping, ensures the stability of the welding process and the product qualification rate, and improves the detection coverage and efficiency through infrared scanning detection.

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Abstract

This application relates to the field of insulator clamp technology, and in particular to a porcelain insulator clamp, comprising a worktable, a servo motor, a bidirectional screw, a movable frame, and a clamping assembly. The servo motor is threadedly connected to one side of the worktable, and the inner side of the bidirectional screw is fixedly connected to the motor shaft of the servo motor via a coupling. The movable frame is threadedly fitted onto the outer side of the bidirectional screw. This porcelain insulator clamp allows for fine-tuning of the clamping force via an electric telescopic rod, preventing overpressure damage to the insulator. The arc-shaped clamp conforms to the insulator surface, increasing the contact area, preventing slippage or displacement, ensuring stability during welding, and automatically adapting to the insulator width, improving positioning accuracy and efficiency. Furthermore, infrared scanning analyzes the insulator surface condition, providing real-time feedback on defect information. Combined with a hydraulic cylinder-driven slider adjustment of the detection position, full-coverage scanning is ensured, guaranteeing a high product qualification rate.
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Description

Technical Field

[0001] This application relates to the field of insulator clamp technology, and in particular to a porcelain insulator clamp. Background Technology

[0002] Porcelain insulator clamps are key components in power systems used to fix, support, and protect porcelain insulators. Early clamps were mostly made of cast iron or ordinary carbon steel, which were prone to rust, heavy, and had a thermal expansion coefficient that did not match the porcelain body, which could lead to cracking of the porcelain body after long-term use.

[0003] A search revealed that CN218159832U discloses a porcelain insulator end clamp. After opening the upper and lower half clamps, one end of the porcelain insulator is placed between the upper and lower half clamps. Then, the upper and lower half clamps are closed, and the first pin is pulled to disengage one end from the second slot. At this time, the second pin, under the action of the second spring, is inserted into the first slot, thus adjusting the height of the upper and lower half clamps. Then, the handle is turned, and the handle drives the clamping plate to move towards the lower half clamp through the screw until the clamping plate and the lower half clamp fix the porcelain insulator. This design facilitates the clamping and fixing of porcelain insulators of different specifications.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and need to be improved: the device requires manual adjustment according to insulators of different widths, which is cumbersome to operate. Furthermore, the device lacks relevant testing tools to detect the degree of defects in the insulator material itself, thereby reducing the welding effect on the surface of the porcelain insulator and the weld joints, thus reducing its practicality. Utility Model Content

[0005] This application provides a porcelain insulator clamp to improve the following technical problems: the above-mentioned device requires manual adjustment according to insulators of different widths, which is troublesome to operate, and the device does not have relevant testing tools for the degree of defects in the insulator material itself, thereby reducing the welding effect of the porcelain insulator surface and weld joints, thus reducing its practicality.

[0006] This application provides a porcelain insulator clamp, which adopts the following technical solution:

[0007] A porcelain insulator clamp includes a worktable, a servo motor, a bidirectional screw, a movable frame, and a clamping assembly. The servo motor is threadedly connected to one side of the worktable. The inner side of the bidirectional screw is fixedly connected to the motor shaft of the servo motor via a coupling. The movable frame is threadedly sleeved on the outside of the bidirectional screw. The clamping assembly is fixedly connected to the top of the movable frame. Detection components are also provided on both sides of the top of the worktable.

[0008] The workbench serves as a basic support platform to ensure structural stability. The servo motor drives the bidirectional screw to rotate through programmed control, replacing manual adjustment to accommodate insulators of different widths. The bidirectional screw enables the clamping components on both sides to move synchronously and symmetrically, ensuring center positioning. The movable frame directly transmits power to the clamping components to complete clamping or releasing actions. The clamping components are fixed to the top of the movable frame and directly contact the insulators. The detection component is used for dynamic monitoring of material defects and the welding process.

[0009] In one feasible technical solution of this application, the clamping assembly includes an electric telescopic rod, a push rod, and an arc-shaped clamping plate. The output end of the electric telescopic rod is fixedly connected to one end of the push rod, the outer side of the push rod is fixedly connected to the middle of the protruding end of the arc-shaped clamping plate, and the concave end of the arc-shaped clamping plate abuts against the surface of the external insulator.

[0010] In one feasible technical solution of this application, the detection component includes a support frame, a hollow frame, and an infrared emitter. The hollow frame is fixedly connected to the opposite side surface of the support frame, and the infrared emitter is movably connected to the outside of the hollow frame.

[0011] In one feasible technical solution of this application, the hollow frame is further provided with a hydraulic cylinder, a drive rod and a slider. The piston end of the hydraulic cylinder is fixedly connected to one end of the drive rod, and the slider is fixedly connected to the top of the drive rod.

[0012] In one feasible technical solution of this application, a signal receiver is also provided on the side of the support frame near the infrared transmitter.

[0013] In one feasible technical solution of this application, the bottom of the movable frame is provided with a threaded groove that is adapted to the size of the bidirectional screw.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This device allows for fine-tuning of the clamping force via an electric telescopic rod, preventing overpressure damage to the insulator. The arc-shaped clamping plate conforms to the insulator surface, increasing the contact area, preventing slippage or displacement, and ensuring stability during welding. It can also automatically adapt to the width of the insulator, improving positioning accuracy and efficiency. On the other hand, it analyzes the surface condition of the insulator through infrared scanning, providing real-time feedback on defect information. Combined with the hydraulic cylinder-driven slider adjustment, it ensures full-coverage scanning and guarantees a high product qualification rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the porcelain insulator clamp according to an embodiment of this application.

[0018] Figure 2 This is a distribution diagram of the infrared emitters in the embodiments of this application.

[0019] Figure 3 This is a cross-sectional view of the inner side of the bottom of the hollow frame in an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the clamping component in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 11. Workbench; 12. Servo motor; 13. Bidirectional screw; 14. Movable frame; 15. Clamping assembly; 151. Electric telescopic rod; 152. Push rod; 153. Arc-shaped clamping plate; 2. Detection assembly; 21. Support frame; 22. Hollow frame; 23. Infrared transmitter; 3. Hydraulic cylinder; 4. Drive rod; 5. Slider; 6. Signal receiver; 7. Threaded groove. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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, they should not be construed as limitations on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a porcelain insulator clamp. (Refer to...) Figures 1 to 4 The porcelain insulator clamp includes a workbench 11, a servo motor 12, a bidirectional screw 13, a movable frame 14, and a clamping assembly 15. The servo motor 12 is threadedly connected to one side of the workbench 11. The inner side of the bidirectional screw 13 is fixedly connected to the motor shaft of the servo motor 12 through a coupling. The movable frame 14 is threadedly sleeved on the outside of the bidirectional screw 13. The clamping assembly 15 is fixedly connected to the top of the movable frame 14. Detection assemblies 2 are also provided on both sides of the top of the workbench 11.

[0029] The workbench 11 serves as a basic support platform to ensure structural stability. The servo motor 12 drives the bidirectional screw 13 to rotate through programmed control, replacing manual adjustment to accommodate insulators of different widths. The bidirectional screw 13 enables the clamping components 15 on both sides to move synchronously and symmetrically to ensure center positioning. The movable frame 14 directly transmits power to the clamping components 15 to complete the clamping or releasing action. The clamping components 15 are fixed to the top of the movable frame 14 and directly contact the insulator. The detection component 2 is used for dynamic monitoring of material defects and the welding process.

[0030] The clamping assembly 15 includes an electric telescopic rod 151, a push rod 152, and an arc-shaped clamping plate 153. The output end of the electric telescopic rod 151 is fixedly connected to one end of the push rod 152. The outer side of the push rod 152 is fixedly connected to the middle of the protruding end of the arc-shaped clamping plate 153. The concave end of the arc-shaped clamping plate 153 abuts against the surface of the outer insulator.

[0031] The servo motors 12 on both sides are started by the control terminal. The servo motors 12 drive the bidirectional screw 13 to rotate. Since the movable frame 14 is always embedded inside the worktable 11, the worktable 11 hinders the rotation of the movable frame 14. With the screw cooperation between the built-in threaded groove 7 and the threaded surface of the bidirectional screw 13, the two sets of movable frames 14 can drive the top arc-shaped clamp 153 to expand or retract.

[0032] The detection component 2 includes a support frame 21, a hollow frame 22, and an infrared emitter 23. The hollow frame 22 is fixedly connected to the opposite side surface of the support frame 21, and the infrared emitter 23 is movably connected to the outside of the hollow frame 22.

[0033] The detection component 2 monitors the temperature and forming status of the weld joint in real time, and triggers an alarm or automatically corrects the welding parameters if abnormal data is detected.

[0034] The hollow frame 22 is also equipped with a hydraulic cylinder 3, a drive rod 4 and a slider 5. The piston end of the hydraulic cylinder 3 is fixedly connected to one end of the drive rod 4, and the slider 5 is fixedly connected to the top of the drive rod 4.

[0035] A signal receiver 6 is also provided on the side of the support frame 21 near the infrared transmitter 23.

[0036] The hydraulic cylinder 3 inside the drive hollow frame 22 pushes the drive rod 4 with its piston end. The drive rod 4 pushes the slider 5. The slider 5 moves the infrared emitter 23 on the outside up and down along the inner wall of the groove. It uses the infrared radiation energy of the material surface to detect defects in the material. The signal is fed back to the control loop through the signal receiver 6 and imaged.

[0037] The bottom of the movable frame 14 has a threaded groove 7 that matches the size of the bidirectional screw 13.

[0038] The general process of using the porcelain insulator clamp in this embodiment is as follows:

[0039] The porcelain insulator to be processed is placed in the center of the workbench 11, ensuring it is in the initial clamping area. The insulator width parameter is input into the control terminal, and the servo motor 12 drives the bidirectional screw 13 to rotate via the coupling. The bidirectional screw 13 drives the movable frames 14 on both sides to move synchronously towards the center or outward along the threaded groove 7, so that the clamping assembly 15 is initially aligned with both sides of the insulator. The electric telescopic rod 151 in the clamping assembly 15 pushes the push rod 152, so that the concave surface of the arc-shaped clamping plate 153 fits against the outer surface of the insulator. The clamping force is fed back by the sensor, and the system automatically adjusts the telescopic amount to ensure a stable clamping without damaging the insulator. During the inspection process, the hydraulic cylinder 3 pushes the drive rod 4, which drives the slider 5 and the infrared transmitter 23 to move along the hollow frame 22 to scan the surface of the insulator. The infrared transmitter 23 emits a detection signal, and the signal receiver 6 collects the reflected data to analyze defects such as surface cracks and pores. After welding is completed, the servo motor 12 reverses, the bidirectional screw 13 drives the movable frame 14 to move outward, the clamping assembly 15 releases the insulator, and then the finished product can be removed.

[0040] The beneficial technical effects of the porcelain insulator clamps in this application are roughly as follows:

[0041] This device allows for fine-tuning of the clamping force via an electric telescopic rod 151, preventing overpressure damage to the insulator. The arc-shaped clamping plate 153 fits snugly against the insulator surface, increasing the contact area, preventing slippage or displacement, ensuring stability during welding, and automatically adapting to the insulator width to improve positioning accuracy and efficiency. On the other hand, infrared scanning analyzes the insulator surface condition, providing real-time feedback on defect information. Combined with the hydraulic cylinder 3 driving the slider 5 to adjust the detection position, it ensures full-coverage scanning and guarantees a high product qualification rate.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A porcelain insulator holder characterized in that, The device includes a worktable (11), a servo motor (12), a bidirectional screw (13), a movable frame (14), and a clamping assembly (15). The servo motor (12) is threaded to one side of the worktable (11). The inner side of the bidirectional screw (13) is fixedly connected to the motor shaft of the servo motor (12) through a coupling. The movable frame (14) is threaded onto the outside of the bidirectional screw (13). The clamping assembly (15) is fixedly connected to the top of the movable frame (14). Detection assemblies (2) are also provided on both sides of the top of the worktable (11). The workbench (11) serves as a basic support platform to ensure structural stability. The servo motor (12) drives the bidirectional screw (13) to rotate through programmed control, replacing manual adjustment to adapt to insulators of different widths. The bidirectional screw (13) enables the clamping components (15) on both sides to move synchronously and symmetrically to ensure center positioning. The movable frame (14) directly transmits power to the clamping components (15) to complete clamping or releasing actions. The clamping components (15) are fixed to the top of the movable frame (14) and directly contact the insulator. The detection component (2) is used for dynamic monitoring of material defects and welding processes.

2. The porcelain insulator holder according to claim 1, characterized in that The clamping assembly (15) includes an electric telescopic rod (151), a push rod (152), and an arc-shaped clamping plate (153). The output end of the electric telescopic rod (151) is fixedly connected to one end of the push rod (152). The outer side of the push rod (152) is fixedly connected to the middle of the protruding end of the arc-shaped clamping plate (153). The concave end of the arc-shaped clamping plate (153) abuts against the surface of the outer insulator.

3. The porcelain insulator holder according to claim 1, wherein The detection component (2) includes a support frame (21), a hollow frame (22) and an infrared emitter (23). The hollow frame (22) is fixedly connected to the opposite side surface of the support frame (21), and the infrared emitter (23) is movably connected to the outside of the hollow frame (22).

4. The porcelain insulator holder according to claim 3, wherein The hollow frame (22) is also equipped with a hydraulic cylinder (3), a drive rod (4) and a slider (5). The piston end of the hydraulic cylinder (3) is fixedly connected to one end of the drive rod (4), and the slider (5) is fixedly connected to the top of the drive rod (4).

5. The porcelain insulator clamp according to claim 3, characterized in that, A signal receiver (6) is also provided on the side of the support frame (21) near the infrared transmitter (23).

6. The porcelain insulator holder according to claim 1, wherein The bottom of the movable frame (14) is provided with a threaded groove (7) that is adapted to the size of the bidirectional screw (13).