Automatic clamping fixture for insulation piece pressure test

Abstract

The utility model discloses an automatic clamping fixture of insulating part pressure resistance test, including bottom plate and two mounting plates of fixed installation on bottom plate, two mounting plates are opposite setting, two mounting plates are fixed installation respectively on slide rail, two slide rails are provided with intermediate clamping mechanism, intermediate clamping mechanism includes clamping module that sets up respectively on two slide rails, the top fixed mounting of bottom plate has the frame body, the insulator that needs to carry out pressure resistance test is placed above the support subassembly, then through two external control system control cylinder of two clamping modules simultaneously to the middle clamping insulator, make the insulator be in the intermediate position, then through the lower pressure mechanism of above to the insulator on the support subassembly, can realize fixed clamping to the insulator, when the clamping module of two sides is retracted, can carry out power pressure resistance test to the two sides of insulator, whole process does not need manual fixing, and the automatic calibration clamping.

Description

Technical Field

[0001] This utility model relates to the field of withstand voltage testing technology for insulating components, and in particular to an automatic clamping fixture for withstand voltage testing of insulating components. Background Technology

[0002] Insulating components are fundamental elements in electrical systems that ensure safe operation. Their core function is to block unwanted current flow through high resistance, preventing short circuits or electric shocks. These components are commonly found in switchgear, transformers, motors, and other equipment. Materials include ceramics, rubber, and composite materials, and their performance must be balanced according to the application environment, considering insulation properties, mechanical strength, and temperature resistance. For example, high-voltage environments require materials with lower dielectric losses, while humid environments necessitate enhanced moisture resistance. The precision of their design directly impacts the stability and lifespan of the entire system.

[0003] Insulation withstand voltage testing is a crucial step in verifying the reliability of insulation components. It simulates extreme voltage conditions to detect whether the material will break down or experience partial discharge. During the test, the equipment gradually increases the voltage to several times the rated value and maintains this voltage for a period of time, observing whether the insulation component can withstand the pressure without permanent damage. This step not only identifies manufacturing defects but also assesses its ability to withstand voltage fluctuations during long-term operation, ensuring that the product meets international safety standards and providing dual protection for the stable operation of electrical systems.

[0004] Patent document CN205049611U discloses a capacitor inter-electrode withstand voltage test clamping device. This clamping device includes a fixing plate, fixing holes on the fixing plate, and a first fixing seat and a second fixing seat symmetrically arranged on the fixing plate. A cylindrical clamping component is mounted on the first fixing seat, and an inverted cylindrical clamping component with the same structure as the cylindrical clamping component is mounted on the second fixing seat. A soft rubber layer is attached to the inner wall of each cylindrical clamping component. The cylindrical clamping components include a large-sized, a medium-sized, and a small-sized cylindrical clamping component. The cylindrical clamping components are connected to the first fixing seat via connecting strips on the fixing seats, and the inverted cylindrical clamping components are connected to the second fixing seat via connecting strips and connecting springs sequentially arranged on the fixing seats. This utility model's capacitor inter-electrode withstand voltage test clamping device has a relatively simple structure, is convenient and practical, and is suitable for further promotion and application.

[0005] As in the prior art of the aforementioned patent, the clamp for the withstand voltage test has a relatively simple structure, consisting only of a clamping plate and a spring. The clamping plate holds the component to be tested by relying on the elastic force of the spring, and then the withstand voltage test is performed by applying voltage to both ends. However, this clamping method has poor stability and requires manual clamping. Components such as capacitors and insulators that need to be tested for withstand voltage are generally quite slender. When conducting withstand voltage tests, it is necessary to ensure the stability and horizontality of the components as much as possible. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide an automatic clamping fixture for withstand voltage testing of insulating components, so as to solve the above-mentioned shortcomings in the prior art.

[0007] Technical solution: An automatic clamping fixture for withstand voltage testing of insulating components includes a base plate and two mounting plates fixedly mounted on the base plate. The two mounting plates are arranged opposite each other, and slide rails are fixedly mounted on each of the two mounting plates. An intermediate clamping mechanism is provided on the two slide rails. The intermediate clamping mechanism includes clamping modules respectively mounted on the two slide rails. A frame is fixedly mounted on the top of the base plate. The frame is located in the middle of the two clamping modules and a pressing mechanism is provided on the frame. A support component is also provided between the two clamping modules.

[0008] As a further description of the above technical solution: the support component includes two fixing blocks, which are fixedly installed at the ends of the slide rail, and a fixing seat is provided at the top of the fixing blocks.

[0009] As a further description of the above technical solution: a support member is fixedly installed on the side wall of the fixed base near the middle of the base plate.

[0010] As a further description of the above technical solution: mounting members are fixedly installed on the sidewalls of the two fixed blocks away from their respective support members, and guide rails are fixedly installed on the mounting members.

[0011] As a further description of the above technical solution: buffer baffles are fixedly installed on the side of both fixed seats away from the guide rail.

[0012] As a further description of the above technical solution: the clamping module includes a first cylinder fixedly mounted on the mounting plate, a sliding block is drivenly mounted on the output end of the first cylinder, the sliding block is slidably connected to the slide rail, a top column is fixedly mounted on the sliding block, the top column is in contact with the semi-annular groove at the top of the fixed seat, and the two clamping modules are symmetrically arranged.

[0013] As a further description of the above technical solution: the pressing mechanism includes a second cylinder fixedly installed at the top of the frame, the output end of the second cylinder is connected to a pressing block, and the bottom end of the pressing block is also provided with a semi-annular groove.

[0014] As a further description of the above technical solution: buffer damping components are provided between the output ends of the two first cylinders and the sliding block.

[0015] Beneficial effects: The insulator to be tested for withstand voltage is placed on top of the support assembly. Then, two external control systems simultaneously control the cylinders of two clamping modules to clamp the insulator in the middle position. The insulator is then fixed and clamped by the pressing mechanism on the support assembly. After the clamping modules on both sides are removed, the withstand voltage test can be performed on both sides of the insulator. The entire process requires no manual fixing and the clamping is automatically calibrated. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the automatic clamping fixture for withstand voltage testing of insulating components proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the pressure block of this utility model when it moves downward;

[0019] Figure 4 This is a three-dimensional structural diagram of the present invention when the insulator is clamped and the side clamping block is retracted;

[0020] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Legend:

[0022] 1. Base plate; 2. Mounting plate; 3. Slide rail; 4. Sliding block; 5. Fixing block; 6. Fixing seat; 7. Support component; 8. First cylinder; 9. Buffer damping component; 10. Top column; 11. Mounting component; 12. Guide rail; 13. Buffer baffle; 14. Frame; 15. Second cylinder; 16. Pressure block; 17. Semi-circular groove; 18. Insulator. Detailed Implementation

[0023] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figure 1-5An automatic clamping fixture for withstand voltage testing of insulation components includes a base plate 1 and two mounting plates 2 fixedly mounted on the base plate 1. The two mounting plates 2 are arranged opposite each other. Slide rails 3 are fixedly mounted on each of the two mounting plates 2. An intermediate clamping mechanism is provided on each of the two slide rails 3. The intermediate clamping mechanism includes clamping modules respectively mounted on the two slide rails 3. A frame 14 is fixedly mounted on the top of the base plate 1. The frame 14 is positioned between the two clamping modules and has a pressing mechanism. The two clamping modules... A support assembly is also provided between them; the insulator 18 that needs to be tested for withstand voltage is placed on top of the support assembly, and then the cylinders of the two clamping modules are simultaneously controlled by two external control systems to clamp the insulator 18 in the middle, so that the insulator 18 is in the middle position. Then, the insulator 18 on the support assembly is fixedly clamped by the pressing mechanism above. At this time, after the clamping modules on both sides are removed, the withstand voltage test can be performed on both sides of the insulator 18. The entire process does not require manual fixation and the clamping is automatically calibrated.

[0025] As a preferred technical solution of this embodiment, the support component includes two fixing blocks 5, which are fixedly installed at the ends of the slide rail 3, and a fixing seat 6 is provided at the top of the fixing block 5; the fixing seat 6 is used to place the insulator 18 to be tested.

[0026] As a preferred technical solution in this embodiment, a support member 7 is fixedly installed on the side wall of the fixed base 6 near the middle of the base plate 1; the support member 7 can increase the support area of ​​the fixed base 6 and increase the stability of the insulation component.

[0027] As a preferred technical solution of this embodiment, an installation component 11 is fixedly installed on the side wall of the two fixed blocks 5 away from their respective support components 7, and a guide rail 12 is fixedly installed on the installation component 11; the insulator 18 to be tested is placed on the guide rail 12, and the insulator 18 can naturally roll downward to the position to be clamped.

[0028] As a preferred technical solution in this embodiment, buffer baffles 13 are fixedly installed on the side of each of the two fixed seats 6 away from the guide rail 12; the buffer baffles 13 can buffer and block the rolling insulators 18 to prevent them from rushing out of the fixed seats 6.

[0029] As a preferred technical solution of this embodiment, the clamping module includes a first cylinder 8 fixedly installed on the mounting plate 2. A sliding block 4 is drivenly installed at the output end of the first cylinder 8. The sliding block 4 is slidably connected to the slide rail 3. A top column 10 is fixedly installed on the sliding block 4. The top column 10 is in contact with the semi-annular groove 17 at the top of the fixed seat 6. The two clamping modules are symmetrically arranged. The first cylinder 8 can push the sliding block 4 to slide on the slide rail 3, further realizing the clamping of the top columns 10 on both sides towards the middle, and clamping the insulator 18 in the middle.

[0030] As a preferred technical solution of this embodiment, the pressing mechanism includes a second cylinder 15 fixedly installed at the top of the frame 14. The output end of the second cylinder 15 is connected to a pressing block 16. The bottom end of the pressing block 16 is also provided with a semi-annular groove 17. The second cylinder 15 presses the pressing block 16 downward, which can press the insulator 18 below into the interior of the semi-annular groove 17 at the bottom end of the pressing block 16.

[0031] As a preferred technical solution of this embodiment, a buffer damping element 9 is provided between the output end of the two first cylinders 8 and the sliding block 4. The buffer damping element 9 can achieve a buffering effect during the process of the first cylinder 8 pushing the sliding block 4 so that the top column 10 on the sliding block 4 clamps the middle insulator 18, and prevent the insulator 18 from being damaged by excessively rigid clamping.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic clamping fixture for withstand voltage testing of insulating components, comprising a base plate (1) and two mounting plates (2) fixedly mounted on the base plate (1), the two mounting plates (2) being arranged opposite to each other, and slide rails (3) being fixedly mounted on each of the two mounting plates (2), characterized in that, An intermediate clamping mechanism is provided on the two slide rails (3). The intermediate clamping mechanism includes clamping modules respectively provided on the two slide rails (3). A frame (14) is fixedly installed on the top of the base plate (1). The frame (14) is located in the middle of the two clamping modules. A pressing mechanism is provided on the frame (14). A support component is also provided between the two clamping modules.

2. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 1, characterized in that, The support assembly includes two fixing blocks (5), which are fixedly installed at the ends of the slide rail (3), and a fixing seat (6) is provided at the top of the fixing blocks (5).

3. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 2, characterized in that, The fixed base (6) is fixedly installed with a support member (7) on the side wall near the middle of the base plate (1).

4. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 2, characterized in that, Mounting members (11) are fixedly installed on the sidewalls of the two fixing blocks (5) away from their respective support members (7), and guide rails (12) are fixedly installed on the mounting members (11).

5. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 2, characterized in that, Both of the two fixed seats (6) are fixedly installed with buffer baffles (13) on the side away from the guide rail (12).

6. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 1, characterized in that, The clamping module includes a first cylinder (8) fixedly installed on the mounting plate (2). The output end of the first cylinder (8) is driven to install a sliding block (4). The sliding block (4) is slidably connected to the slide rail (3). A top column (10) is fixedly installed on the sliding block (4). The top column (10) is connected to the semi-annular groove (17) at the top of the fixed seat (6). The two clamping modules are symmetrically arranged.

7. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 1, characterized in that, The pressing mechanism includes a second cylinder (15) fixedly installed at the top of the frame (14). The output end of the second cylinder (15) is connected to a pressure block (16), and the bottom end of the pressure block (16) is also provided with a semi-annular groove (17).

8. The automatic clamping fixture for withstand voltage testing of insulating components according to claim 6, characterized in that, A buffer damping element (9) is provided between the output end of each of the two first cylinders (8) and the sliding block (4).

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