Insulating rubber sheet voltage resistance detection device

Abstract

The utility model discloses an insulation rubber board voltage resistance detection device relates to insulation rubber board detection technical field, specifically is a kind of insulation rubber board voltage resistance detection device, including voltage resistance tester;Still include support cabinet, workstation, drive component, electrode component;The workstation is fixedly installed on support cabinet, and the voltage resistance tester is fixedly installed on workstation;The utility model is driven by setting multiple second silicone rubber pad and multiple second electrode, and drive component drives upper electrode assembly displacement along X axis direction, Y axis direction, Z axis direction, realizes the multi-point detection to insulation rubber board.Compared with prior art, this multi-point detection mode can detect multiple detection points simultaneously, significantly improve the detection efficiency, detection point position comprehensiveness.In addition, multi-point detection mode can comprehensively evaluate the voltage resistance performance of insulation rubber board, avoid the defect area that single-point detection can miss, thereby improve the accuracy and reliability of detection.

Description

Technical Field

[0001] This utility model relates to the field of insulating rubber sheet testing technology, specifically to an insulating rubber sheet withstand voltage testing device. Background Technology

[0002] In existing technologies, the voltage withstand performance testing of insulating rubber sheets is a crucial step in ensuring their safe use in substations, power plants, and distribution rooms. However, existing testing devices have many problems in practical applications. For example, invention patent number 202010312412.4 discloses an insulating rubber sheet voltage withstand testing device. This device can control the high voltage through a relay during testing, improving safety. Furthermore, after testing, the broken rubber sheet can be directly repaired, and the test can be repeated immediately after repair, saving time and manpower.

[0003] However, this device still has the following shortcomings in actual operation: Low detection efficiency: Existing detection devices can usually only perform single-point detection on the insulating rubber sheet, and cannot detect multiple detection points simultaneously, resulting in low detection efficiency. In actual production, the insulating rubber sheet is large in size and requires many detection points. Single-point detection cannot meet the needs of efficient detection, seriously affecting production efficiency. Insufficient detection accuracy: During the detection process, the thickness of the insulating rubber sheet varies at different locations, causing ineffective contact between the electrode and the insulating rubber sheet. The fixation and positioning of the insulating rubber sheet are not precise enough, which easily leads to unstable contact between the detection electrode and the insulating rubber sheet, thus affecting the accuracy of the detection results. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an insulating rubber sheet withstand voltage testing device, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an insulating rubber sheet withstand voltage testing device, comprising a withstand voltage tester; further comprising a support cabinet, a workbench, a driving component, and an electrode component; the workbench is fixedly mounted on the support cabinet, and the withstand voltage tester is fixedly mounted on the workbench; the electrode component comprises an upper electrode assembly and a lower electrode assembly, the lower electrode assembly comprising multiple second silicone rubber pads and multiple second electrodes, each second silicone rubber pad being fixedly mounted on the upper surface of the workbench, and each second electrode being embedded and fixedly mounted on the upper end of a second silicone rubber pad, the second electrodes being connected in series via wires; the upper electrode assembly comprises a solid insulating rod, a first silicone rubber pad, and a high-voltage electrode, the first silicone rubber pad being fixedly mounted on the lower end of the solid insulating rod, and the high-voltage electrode being embedded and fixedly mounted on the lower end of the first silicone rubber pad; the withstand voltage tester is electrically connected to the high-voltage electrode and the second electrode respectively; the driving component is fixedly mounted on the workbench, and the upper electrode assembly is fixedly mounted on the driving component; the driving component drives the upper electrode assembly to move along the X-axis, Y-axis, and Z-axis directions.

[0006] Optionally, a limiting frame is fixedly installed on the upper surface of the workbench. The limiting frame is U-shaped. Multiple support bars are fixedly installed on the upper surface of the workbench and inside the limiting frame. The support bars are arranged in parallel in sequence. Each of the second silicone rubber pads is located inside the limiting frame.

[0007] Optionally, the driving components include a Y-axis driving assembly, a Z-axis driving assembly, and two X-axis driving assemblies. Both X-axis driving assemblies are mounted on the worktable, and the two X-axis driving assemblies are located on both sides of the limiting frame.

[0008] Optionally, the X-axis drive assembly includes a guide rod, a first lead screw, a first servo motor, a first sliding block, and two first support plates. Both first support plates are fixedly mounted on the upper surface of the worktable. The two ends of the guide rod are fixedly connected to the two first support plates, and the two ends of the first lead screw are rotatably connected to the two first support plates, with the guide rod parallel to the first lead screw. Both the guide rod and the first lead screw pass through the first sliding block, and the guide rod is slidably connected to the first sliding block. The first lead screw is threadedly connected to the first sliding block. The first servo motor is fixedly mounted on the worktable, and its output shaft is drively connected to one end of the first lead screw. The first sliding blocks in the two X-axis drive assemblies move synchronously.

[0009] Optionally, the Y-axis drive assembly includes a gantry, a second lead screw, a second sliding block, and a second servo motor. The gantry is fixedly mounted on the first sliding block in the two X-axis drive assemblies. The two ends of the second lead screw are rotatably connected to the two side columns of the gantry. The second servo motor is fixedly mounted on the gantry. The output shaft end of the second servo motor is drively connected to one end of the second lead screw. The second sliding block is fitted onto the outer side wall of the second lead screw and the two are threaded together. The second sliding block is slidably connected to the crossbeam of the gantry.

[0010] Optionally, the Z-axis drive assembly includes a servo electric cylinder, the servo electric cylinder being fixedly mounted on the second sliding block, and the solid insulating rod being fixedly mounted on the output shaft end of the servo electric cylinder.

[0011] Optionally, a control board is also included, which is installed inside the support cabinet and is connected to the pressure tester and the drive components for control.

[0012] (III) Beneficial Effects This utility model provides a device for testing the withstand voltage of insulating rubber sheets, which has the following advantages: 1. This invention achieves multi-point detection of insulating rubber sheets by setting multiple second silicone rubber pads and multiple second electrodes, and by driving the upper electrode assembly along the X-axis, Y-axis, and Z-axis directions using a driving component. Compared with existing technologies, this multi-point detection method can simultaneously detect multiple points, significantly improving detection efficiency and the comprehensiveness of detection points. In actual operation, through precise control of the driving component, the upper electrode assembly can quickly move to different detection points, reducing detection time. Furthermore, the multi-point detection method can comprehensively evaluate the voltage withstand performance of the insulating rubber sheet, avoiding defects that might be missed by single-point detection, thereby improving the accuracy and reliability of the detection.

[0013] 2. This invention utilizes a combination of a first silicone rubber pad and a second silicone rubber pad. The elastic deformation of the first silicone rubber pad ensures effective contact between the high-voltage electrode and the upper surface of the insulating rubber plate; the elastic deformation of the second silicone rubber pad ensures effective contact between the second electrode and the lower surface of the insulating rubber plate. This effectively avoids poor contact between the motor and the insulating rubber plate caused by inconsistent thickness at different detection points, greatly improving detection accuracy. Simultaneously, this precise positioning method effectively avoids positional deviations of the insulating rubber plate during the detection process, ensuring effective contact between the detection electrode and the insulating rubber plate, thereby improving detection accuracy. Furthermore, this invention also achieves multi-point detection of the insulating rubber plate by setting multiple second silicone rubber pads and second electrodes, further improving detection accuracy. In practical applications, this multi-point detection method can effectively detect minute cracks, impurities, and other defects in the insulating rubber plate, ensuring its safety in actual use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an insulating rubber sheet withstand voltage testing device according to the present invention, under the condition of conducting a withstand voltage test on the insulating rubber sheet. Figure 2 This is a three-dimensional structural diagram of an insulating rubber sheet withstand voltage testing device according to the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a three-dimensional structural diagram of the workbench in the voltage withstand device for insulating rubber sheets according to this utility model. Figure 5 This is a three-dimensional structural diagram of the driving component in the voltage withstand device for insulating rubber sheets according to this utility model. Figure 6 This is a three-dimensional structural diagram of the first lead screw in the voltage withstand device for insulating rubber sheets of this utility model; Figure 7 This is a three-dimensional structural diagram of the first silicone rubber pad in the voltage withstand device for insulating rubber sheets of this utility model. Figure 8 This is a cross-sectional view of the first silicone rubber in the voltage withstand device for insulating rubber sheets of this utility model.

[0016] In the diagram: 1. Workbench; 2. Support cabinet; 3. Insulating rubber sheet; 4. Withstand voltage tester; 5. X-axis drive assembly; 501. First support plate; 502. Guide rod; 503. First lead screw; 504. First servo motor; 505. First sliding block; 6. Y-axis drive assembly; 601. Gantry frame; 602. Second lead screw; 603. Second sliding block; 604. Second servo motor; 7. Z-axis drive assembly; 8. Solid insulating rod; 9. First silicone rubber pad; 10. High voltage electrode; 11. Second silicone rubber pad; 12. Second electrode; 13. Limiting frame; 14. Support bar. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying anything.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0019] Please see Figures 1 to 8 This utility model provides a technical solution: an insulating rubber sheet withstand voltage testing device, including a withstand voltage tester 4. The device also includes a support cabinet 2, a worktable 1, a drive component, and electrode components. Furthermore, the device includes a control board installed inside the support cabinet 2, which is electrically connected to the withstand voltage tester 4 and the drive component. The worktable 1 is fixedly mounted on the support cabinet 2, and the withstand voltage tester 4 is fixedly mounted on the worktable 1. The worktable 1 is made of solid insulating material.

[0020] The electrode components include an upper electrode assembly and a lower electrode assembly. The lower electrode assembly includes multiple second silicone rubber pads 11 and multiple second electrodes 12. Each second silicone rubber pad 11 is fixedly installed on the upper surface of the workbench 1. Each second electrode 12 is embedded and fixedly installed on the upper end of a second silicone rubber pad 11. Each second electrode 12 is connected in series with wires.

[0021] The upper electrode assembly includes a solid insulating rod 8, a first silicone rubber pad 9, and a high-voltage electrode 10. The first silicone rubber pad 9 is fixedly installed at the lower end of the solid insulating rod 8, and the high-voltage electrode 10 is embedded and fixedly installed at the lower end of the first silicone rubber pad 9. The withstand voltage tester 4 is electrically connected to the high-voltage electrode 10 and the second electrode 12, respectively.

[0022] The drive unit is fixedly mounted on the worktable 1, and the upper electrode assembly is fixedly mounted on the drive unit. The drive unit drives the upper electrode assembly to move along the X-axis, Y-axis, and Z-axis.

[0023] The control board includes, but is not limited to, a programmable logic controller (PLC). The control board contains internal software programs such as logic control programs and timing control programs to meet the control needs for starting and stopping the drive components and the withstand voltage tester 4, to meet the automation control needs of the drive components, and to meet the adjustment needs of the control parameters of the drive components and the withstand voltage tester 4. The control process and principle of the control board for the drive components and the withstand voltage tester 4 are existing technologies and will not be elaborated further. The withstand voltage tester 4 is used to test the withstand voltage of the insulating rubber sheet 3. The withstand voltage tester 4 includes, but is not limited to, one of the GMC-IHT2000 withstand voltage tester or the China Susu SD-50 withstand voltage tester. The functions of the withstand voltage tester 4 are: 1. The withstand voltage tester 4 can generate high voltage. The withstand voltage tester 4 uses an internal boost circuit to increase the lower input voltage (usually mains voltage) to the required test voltage level. For the insulating rubber sheet 3, the test voltage may be set in the range of several kilovolts or even higher, depending on its intended use and relevant safety standards. This high voltage is precisely applied between the high-voltage electrode 10 and the second electrode 12 located on both sides of the insulating rubber sheet 3 to simulate the high-voltage working environment it may encounter in actual use, thereby verifying the insulation capability of the insulating rubber sheet 3. II. Monitoring insulation performance, including leakage current detection and breakdown detection. Leakage current detection: During the application of high voltage, the withstand voltage tester 4 monitors the leakage current through the insulating rubber sheet 3 in real time. Under normal circumstances, the leakage current of a good insulating rubber sheet 3 should be very small, typically in the microampere level or even smaller. If the leakage current exceeds the set threshold (Note: In this technical solution, due to the significant differences in withstand voltage test standard data for insulating rubber sheets 3 of different thicknesses and compositions, resulting in significant differences in their threshold, parameter range, and other values, detailed descriptions of threshold, parameter range, and other values ​​are not provided), this may indicate a defect in the insulation performance of the insulating rubber sheet 3, such as internal impurities, micro-cracks, or surface contamination leading to current leakage. Breakdown detection: The withstand voltage tester 4 can detect whether the insulating rubber sheet 3 has broken down. When the insulating rubber sheet 3 cannot withstand the applied high voltage, a breakdown will occur, at which point the current will increase sharply. The withstand voltage tester 4 can quickly identify this current change and will usually trigger an alarm or automatically cut off the power supply to prevent equipment damage and ensure the safety of operators. In this way, it is possible to accurately determine whether the insulation strength of the insulating rubber sheet 3 meets the requirements under a specific voltage.

[0024] In this technical solution, the second silicone rubber pads 11 are arranged in a rectangular array, and the second electrodes 12 are mounted on the respective second silicone rubber pads 11. During implementation, an insulating rubber plate 3 is laid on each of the second silicone rubber pads 11, providing support from below. The second silicone rubber pads 11 are made of low-hardness silicone rubber material, preferably high-temperature vulcanized silicone rubber with a Shore hardness of 40-60A, possessing both a breakdown voltage of 25-35kV / mm and soft elasticity. The second silicone rubber pads 11 provide elastic support for each second electrode 12, allowing the second electrode 12 to adhere tightly to the lower surface of the insulating rubber plate 3, ensuring effective contact between the second electrode 12 and the insulating rubber plate 3. Even when the thickness of the insulating rubber plate 3 varies at different detection points, the elastic deformation of the second silicone rubber pads 11 ensures effective contact between the second electrode 12 and the insulating rubber plate 3. The arrangement of multiple second electrodes 12 enables multi-point withstand voltage testing of the insulating rubber plate 3.

[0025] The driving component is used to drive the upper electrode assembly to move along the X-axis, Y-axis, and Z-axis, thereby moving the upper electrode assembly to different detection points on the upper surface of the insulating rubber plate 3. Each detection point where the upper electrode assembly moves sequentially corresponds to the position of each second electrode 12. The solid insulating rod 8 is made of solid insulating material. The first silicone rubber pad 9 is made of low-hardness silicone rubber material, preferably high-temperature vulcanized silicone rubber with a Shore hardness of 40-60A, possessing both a breakdown voltage of 25-35kV / mm and soft elasticity. The first silicone rubber pad 9 provides elastic support for each high-voltage electrode 10, allowing the high-voltage electrode 10 to adhere tightly to the upper surface of the insulating rubber plate 3, ensuring effective contact between the high-voltage electrode 10 and the insulating rubber plate 3. Even when the thickness of the insulating rubber plate 3 varies at different detection points, the elastic deformation of the first silicone rubber pad 9 also ensures effective contact between the high-voltage electrode 10 and the insulating rubber plate 3.

[0026] In actual implementation, an insulating rubber sheet 3 is laid on each of the second silicone rubber pads 11, with the lower surface of the insulating rubber sheet 3 abutting against the second electrode 12. The control board activates the drive component, which moves the upper electrode assembly, bringing the high-voltage electrode 10 in the upper electrode assembly into contact with the upper surface of the insulating rubber sheet 3, with the high-voltage electrode 10 corresponding vertically to one of the second electrodes 12. Subsequently, the control board activates the withstand voltage tester 4, which generates a high voltage and applies it between the high-voltage electrode 10 and the second electrode 12 located on both sides of the insulating rubber sheet 3, simulating the high-voltage working environment that may be encountered during actual use, thereby verifying the insulation capability of the insulating rubber sheet 3. After completing the withstand voltage test at one test point, the drive component moves the upper electrode assembly, causing the high-voltage electrode 10 to move to a new position for the next test point, until all test points on the insulating rubber sheet 3 have completed the withstand voltage test.

[0027] Specifically, a limit frame 13 is fixedly installed on the upper surface of the workbench 1. The limit frame 13 is U-shaped. Multiple support bars 14 are fixedly installed on the upper surface of the workbench 1 and inside the limit frame 13. The support bars 14 are arranged in parallel in sequence. Each second silicone rubber pad 11 is located inside the limit frame 13.

[0028] Each support bar 14 is used to assist in supporting the insulating rubber sheet 3. The height of the support bar 14 is less than or equal to the height of the second silicone rubber pad 11 after compression deformation. The limiting frame 13 is used to limit and block the edge of the insulating rubber sheet 3, so that the insulating rubber sheet 3 is in a fixed position.

[0029] Specifically, the driving components include a Y-axis driving assembly 6, a Z-axis driving assembly 7, and two X-axis driving assemblies 5. The two X-axis driving assemblies 5 are both mounted on the worktable 1, and the two X-axis driving assemblies 5 are located on both sides of the limiting frame 13.

[0030] The Z-axis drive assembly 7 drives the upper electrode assembly longitudinally, thereby adjusting its height. The Y-axis drive assembly 6 drives the Z-axis drive assembly 7 laterally along the Y-axis, thereby adjusting the upper electrode assembly's position in the Y-axis direction. Two X-axis drive assemblies 5 operate synchronously. These two X-axis drive assemblies 5 synchronously drive the Y-axis drive assembly 6 laterally along the X-axis, thereby adjusting the upper electrode assembly's position in the X-axis direction.

[0031] Specifically, the X-axis drive assembly 5 includes a guide rod 502, a first lead screw 503, a first servo motor 504, a first sliding block 505, and two first support plates 501. Both first support plates 501 are fixedly mounted on the upper surface of the worktable 1. The two ends of the guide rod 502 are fixedly connected to the two first support plates 501 respectively, and the two ends of the first lead screw 503 are rotatably connected to the two first support plates 501 respectively. The guide rod 502 and the first lead screw 503 are parallel. Both the guide rod 502 and the first lead screw 503 pass through the first sliding block 505, and the guide rod 502 is slidably connected to the first sliding block 505. The first lead screw 503 is threadedly connected to the first sliding block 505. The first servo motor 504 is fixedly mounted on the worktable 1, and the output shaft end of the first servo motor 504 is drively connected to one end of the first lead screw 503. The first sliding blocks 505 in the two X-axis drive assemblies 5 move synchronously.

[0032] The control board is electrically connected to the first servo motor 504 in each of the two X-axis drive assemblies 5. The control board synchronously controls the start and stop of the two first servo motors 504. After the first servo motor 504 starts, it drives the first lead screw 503 to rotate, and the lead screw 503 drives the first sliding block 505, which is threaded to it, to slide. When the two X-axis drive assemblies 5 operate synchronously, the two first servo motors 504 operate synchronously, thereby enabling the two first sliding blocks 505 to slide synchronously.

[0033] Specifically, the Y-axis drive assembly 6 includes a gantry 601, a second lead screw 602, a second sliding block 603, and a second servo motor 604. The gantry 601 is fixedly mounted on the first sliding block 505 in the two X-axis drive assemblies 5. The two ends of the second lead screw 602 are rotatably connected to the two side columns of the gantry 601. The second servo motor 604 is fixedly mounted on the gantry 601. The output shaft end of the second servo motor 604 is drively connected to one end of the second lead screw 602. The second sliding block 603 is fitted on the outer side wall of the second lead screw 602 and the two are threaded together. The second sliding block 603 is slidably connected to the crossbeam of the gantry 601.

[0034] In this system, the first sliding block 505 in the two X-axis drive assemblies 5 moves synchronously, driving the gantry 601 to move. The control board is electrically connected to the second servo motor 604, and controls the start and stop of the second servo motor 604. After the second servo motor 604 starts, it drives the second lead screw 602 to rotate, and the second lead screw 602 pushes the second sliding block 603, which is threadedly connected to it, to slide.

[0035] Specifically, the Z-axis drive assembly 7 includes a servo electric cylinder, which is fixedly mounted on the second sliding block 603, and a solid insulating rod 8 is fixedly mounted on the output shaft end of the servo electric cylinder.

[0036] The second sliding block 603, during its sliding displacement, drives the servo electric cylinder to move along the length of the second lead screw 602. The control board is electrically connected to the servo electric cylinder and controls its start and stop. After the servo electric cylinder starts, its output shaft pushes the solid insulating rod 8 to move up and down. The solid insulating rod 8, through the first silicone rubber pad 9, drives the high-voltage electrode 10 to move up and down.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An insulation rubber plate voltage resistance detection device, comprising a voltage resistance tester (4); characterized in that: It also includes a support cabinet (2), a workbench (1), a drive component, and an electrode component; the workbench (1) is fixedly mounted on the support cabinet (2), and the withstand pressure tester (4) is fixedly mounted on the workbench (1); The electrode components include an upper electrode assembly and a lower electrode assembly. The lower electrode assembly includes multiple second silicone rubber pads (11) and multiple second electrodes (12). Each second silicone rubber pad (11) is fixedly installed on the upper surface of the workbench (1). Each second electrode (12) is embedded and fixedly installed on the upper end of a second silicone rubber pad (11). Each second electrode (12) is connected in series with wires. The upper electrode assembly includes a solid insulating rod (8), a first silicone rubber pad (9), and a high-voltage electrode (10). The first silicone rubber pad (9) is fixedly installed on the lower end of the solid insulating rod (8). The high-voltage electrode (10) is embedded and fixedly installed on the lower end of the first silicone rubber pad (9). The withstand voltage tester (4) is electrically connected to the high-voltage electrode (10) and the second electrode (12) respectively. The driving component is fixedly installed on the worktable (1), and the upper electrode assembly is fixedly installed on the driving component; the driving component drives the upper electrode assembly to move along the X-axis, Y-axis and Z-axis directions.

2. The device for detecting the voltage resistance of an insulated rubber sheet according to claim 1, characterized in that: A limiting frame (13) is fixedly installed on the upper surface of the workbench (1). The limiting frame (13) is U-shaped. Multiple support bars (14) are fixedly installed on the upper surface of the workbench (1) and inside the limiting frame (13). Each of the support bars (14) is arranged in parallel. Each of the second silicone rubber pads (11) is located inside the limiting frame (13).

3. The device for detecting the voltage resistance of an insulated rubber sheet according to claim 2, characterized in that: The driving components include a Y-axis driving assembly (6), a Z-axis driving assembly (7), and two X-axis driving assemblies (5). The two X-axis driving assemblies (5) are both mounted on the worktable (1), and the two X-axis driving assemblies (5) are located on both sides of the limiting frame (13).

4. The insulating rubber sheet withstand voltage testing device according to claim 3, characterized in that: The X-axis drive assembly (5) includes a guide rod (502), a first lead screw (503), a first servo motor (504), a first sliding block (505), and two first support plates (501). Both first support plates (501) are fixedly mounted on the upper surface of the worktable (1). The two ends of the guide rod (502) are fixedly connected to the two first support plates (501), and the two ends of the first lead screw (503) are rotatably connected to the two first support plates (501). The guide rod (502) and the first lead screw (504) are connected in series. 3) Parallel; the guide rod (502) and the first lead screw (503) both pass through the first sliding block (505), the guide rod (502) and the first sliding block (505) are slidably connected, and the first lead screw (503) and the first sliding block (505) are threadedly connected; the first servo motor (504) is fixedly installed on the worktable (1), and the output shaft end of the first servo motor (504) is connected to one end of the first lead screw (503) for transmission; the first sliding blocks (505) in the two X-axis drive assemblies (5) move synchronously.

5. The insulating rubber sheet withstand voltage testing device according to claim 4, characterized in that: The Y-axis drive assembly (6) includes a gantry (601), a second lead screw (602), a second sliding block (603), and a second servo motor (604). The gantry (601) is fixedly mounted on the first sliding block (505) in the two X-axis drive assemblies (5). The two ends of the second lead screw (602) are rotatably connected to the two side columns of the gantry (601). The second servo motor (604) is fixedly mounted on the gantry (601). The output shaft end of the second servo motor (604) is drively connected to one end of the second lead screw (602). The second sliding block (603) is fitted on the outer side wall of the second lead screw (602) and the two are threadedly connected. The second sliding block (603) is slidably connected to the crossbeam of the gantry (601).

6. The insulating rubber sheet withstand voltage testing device according to claim 5, characterized in that: The Z-axis drive assembly (7) includes a servo electric cylinder, which is fixedly mounted on the second sliding block (603), and the solid insulating rod (8) is fixedly mounted on the output shaft end of the servo electric cylinder.

7. The insulating rubber sheet withstand voltage testing device according to claim 1, characterized in that: It also includes a control board, which is installed in the support cabinet (2) and is connected to the pressure tester (4) and the drive components for control.

Images