Calibrating device for high-voltage switch tester

Abstract

The utility model provides a calibration device for a high-voltage switch tester. The calibration device comprises a base, and a first clamp, a synchronous transmission mechanism, a rotary test assembly, a second clamp and an operation table which are arranged on the base, a linear motor is arranged on the base; the first clamp is used for clamping the linear sensor and connecting a pull rod of the linear sensor with the output end of the synchronous motor; the synchronous transmission mechanism is used for converting linear displacement of the linear motor into rotary motion to form a rotary output end; the rotary test assembly has a test connection state in butt joint with the rotary output end; the second clamp is used for clamping the rotation sensor and enabling the rotation sensor to be aligned with the rotation output end; and a data acquisition module for acquiring displacement data and rotation angle data of the output end of the linear motor is arranged on the operation table. The high-voltage switch tester calibration device provided by the utility model has dual functions of linear displacement test calibration and rotation angle test calibration, and can improve the calibration efficiency and convenience of a high-voltage switch tester.

Description

Technical Field

[0001] This utility model belongs to the field of high voltage switch tester calibration technology, and specifically relates to a high voltage switch tester calibration device. Background Technology

[0002] High-voltage switches, rated at 3kV and above, are electrical appliances primarily used for opening and closing conductive circuits. Their installation and application must ensure safety and reliability; therefore, rigorous testing of their mechanical performance is essential during installation and commissioning. High-voltage switch testers are commonly used equipment for testing the mechanical performance of high-voltage switches. They primarily detect the mechanical action response of the high-voltage switch using displacement and rotation sensors. To ensure the accuracy of the test results, the high-voltage switch tester must be tested and calibrated before each use.

[0003] Currently, the calibration of high-voltage switch testers mainly involves comparing the displacement data of linear motors collected by the calibration device and the sensors of the high-voltage switch tester. Since the detection methods of linear sensors and rotary sensors are different, and the existing calibration devices have limited functions, two corresponding calibration devices are needed for linear displacement detection calibration and rotary angle detection calibration. These devices need to be replaced as needed during testing and calibration, which makes the testing and calibration work cumbersome and inconvenient. Utility Model Content

[0004] This utility model provides a calibration device for a high-voltage switch tester, which aims to enable a single calibration device to perform both linear displacement test calibration and rotation angle test calibration, thereby improving the calibration efficiency and convenience of the high-voltage switch tester.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a high-voltage switch tester calibration device, comprising:

[0006] The base is horizontally equipped with a linear motor, and the output end of the linear motor is equipped with a sensor adsorption plate.

[0007] The first clamp is mounted on the base and aligned with the linear motor axis. The first clamp is used to hold and fix the linear sensor of the high voltage switch tester.

[0008] A synchronous transmission mechanism is mounted on a base and located to the side of the linear motor. The synchronous transmission mechanism has a linear input end and a rotary output end, and the linear input end is connected to the output end of the linear motor.

[0009] A rotating test assembly is mounted on a base and axially aligned with the rotating output end. The rotating test assembly has a test connection state that is docked with the rotating output end, and a test standby state that is separated from the rotating output end.

[0010] The second clamp is mounted on the base and aligned axially with the rotating test assembly. The second clamp is used to hold and fix the rotating sensor of the high voltage switch tester.

[0011] The control panel, located on the base, is equipped with a data acquisition module. The data acquisition module is used to collect displacement data from the output end of the linear motor and rotation angle data from the rotation test component.

[0012] In one possible implementation, the synchronous transmission mechanism includes two synchronous pulleys and a synchronous belt fitted onto the two pulleys; wherein, the synchronous belt is provided with a connecting seat, which serves as a linear input end connected to the output end of a linear motor; and the axle of one of the synchronous pulleys forms a rotary output end.

[0013] In some embodiments, the rotation test assembly includes:

[0014] The slide is fixedly connected to the base;

[0015] The slider is slidably connected to the slide block along the axis of the rotating output end;

[0016] A rotating shaft is rotatably connected to the slider and axially aligned with the rotating output end;

[0017] The encoder is mounted on the rotating shaft and electrically connected to the data acquisition module.

[0018] The slider is used to drive the rotating shaft to move along the axial direction of the rotating output end to form a test connection state or a test standby state.

[0019] For example, the rotary output end is provided with a first end face gear, and the end of the rotary shaft facing the rotary output end is provided with a second end face gear; wherein, when the slider drives the rotary shaft to move to the point where the second end face gear and the first end face gear are engaged, a test connection state is formed.

[0020] For example, the slide block is provided with a rack extending along its axial direction, the slider is rotatably connected to an adjusting rod, the adjusting rod is fitted with a drive gear, and the drive gear is meshed with the rack.

[0021] In some embodiments, the slide block is provided with a locking plate extending axially along the rotary output end, and the slider is provided with a limiting groove; wherein, the locking plate passes through the limiting groove and slides in cooperation with the limiting groove, and a locking screw is screwed onto the slider, one end of the locking screw passing through the limiting groove and abutting against the locking plate.

[0022] In one possible implementation, both the first clamp and the second clamp include:

[0023] A fixed base is fixedly connected to the base, and a guide groove is provided on the fixed base;

[0024] Two clamping arms are arranged opposite each other and are slidably connected to the guide groove;

[0025] The drive assembly is connected to the fixed base and is driven by the two clamping arms respectively, and is used to drive the two clamping arms to move synchronously closer or further away along the guide groove.

[0026] For example, the drive assembly includes a drive rod and a crank connected to one end of the drive rod. The drive rod is provided with a first threaded section and a second threaded section with opposite thread directions. The first threaded section and the second threaded section are respectively passed through two clamping arms and screwed into their respective clamping arms.

[0027] For example, a limiting ring groove is provided in the middle of the drive rod, and a limiting plate is provided on the fixed base. The limiting plate is located between the two clamping arms and is engaged with the limiting ring groove.

[0028] In some embodiments, a first housing is provided on the base, and the linear motor and synchronous transmission mechanism are both located inside the first housing; the rotation test assembly has a second housing.

[0029] The beneficial effects of the high-voltage switch tester calibration device provided by this utility model are as follows: Compared with the prior art, when calibrating the high-voltage switch tester for linear displacement testing, the linear sensor can be clamped and fixed in the first fixture, and the pull rod of the linear sensor can be connected to the sensor adsorption plate. Then, the linear motor is started, causing the output end of the linear motor to drive the sensor adsorption plate, which in turn drives the pull rod of the linear sensor to extend and obtain linear displacement. Then, the displacement data collected by the data acquisition module at the output end of the linear motor is compared and calibrated with the data fed back to the high-voltage switch tester by the linear sensor. When calibrating the high-voltage switch tester for rotation angle testing, the rotation testing component is used... Switching to test connection mode, the rotary sensor of the high-voltage switch is clamped and fixed using the second clamp. Then, the linear motor is started, and the linear motion at the output end of the linear motor is converted into the rotational motion at the output end using the synchronous transmission mechanism. The data acquisition module collects the rotation angle data of the rotating test component and compares it with the data fed back to the high-voltage switch tester by the rotary sensor for calibration. It can not only perform test calibration for linear displacement and rotation angle separately, but also perform test calibration for linear displacement and rotation angle simultaneously. Therefore, it has dual functions of linear displacement test calibration and rotation angle test calibration, which not only improves the convenience of test calibration operations of the high-voltage switch tester, but also helps to improve test calibration efficiency. Attached Figure Description

[0030] Figure 1 A three-dimensional structural schematic diagram of the calibration device for the high-voltage switch tester provided in this embodiment of the utility model;

[0031] Figure 2A three-dimensional structural schematic diagram of the high-voltage switch tester calibration device (with the first and second housings open) provided for an embodiment of this utility model;

[0032] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0033] Figure 4 This is a three-dimensional structural diagram of the rotating test assembly and the second fixture used in the embodiments of this utility model;

[0034] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point B;

[0035] Figure 6 This is a schematic diagram of the connection structure between the slide block and the slider used in the embodiment of this utility model.

[0036] In the diagram: 10. Base; 11. Linear motor; 12. Sensor adsorption plate; 13. First housing; 20. First clamp; 21. Fixed base; 211. Guide groove; 212. Limiting plate; 22. Clamping arm; 23. Drive assembly; 231. Drive rod; 232. Crank handle; 2311. First threaded section; 2312. Second threaded section; 2313. Limiting ring groove; 30. Synchronous transmission mechanism; 31. Synchronous pulley; 32. Synchronous belt; 321, connecting seat; 33, first end face gear; 40, rotation test assembly; 41, slide; 411, rack; 412, locking plate; 42, slider; 421, adjusting rod; 422, drive gear; 423, limit slide groove; 424, locking screw; 43, rotating shaft; 431, second end face gear; 44, encoder; 45, second housing; 50, second clamp; 60, operating table; 61, display screen. Detailed Implementation

[0037] To make the technical problem to be solved, the technical solution, and the beneficial effects 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.

[0038] It should be noted that when an element is referred to as being "set on" or "connected to" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. 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" or "several" means two or more, unless otherwise explicitly specified.

[0039] Please also refer to Figures 1 to 6 The calibration device for a high-voltage switch tester provided by this utility model will now be described. The calibration device includes a base 10, a first clamp 20, a synchronous transmission mechanism 30, a rotating testing assembly 40, a second clamp 50, and an operating table 60. A linear motor 11 is horizontally mounted on the base 10, and a sensor adsorption plate 12 is provided at the output end of the linear motor 11. The first clamp 20 is mounted on the base 10 and axially aligned with the linear motor 11, and is used to clamp and fix the linear sensor of the high-voltage switch tester. The synchronous transmission mechanism 30 is mounted on the base 10 and located to the side of the linear motor 11. The synchronous transmission mechanism 30 has a linear input end and a rotary output end. The input end is connected to the output end of the linear motor 11; the rotation test assembly 40 is mounted on the base 10 and axially aligned with the rotation output end. The rotation test assembly 40 has a test connection state that is docked with the rotation output end, and a test standby state that is separated from the rotation output end; the second clamp 50 is mounted on the base 10 and axially aligned with the rotation test assembly 40. The second clamp 50 is used to clamp and fix the rotation sensor of the high voltage switch tester; the operating table 60 is mounted on the base 10 and is equipped with a data acquisition module. The data acquisition module is used to acquire the displacement data of the output end of the linear motor 11 and the rotation angle data of the rotation test assembly 40.

[0040] It should be noted that the linear sensor used in the high-voltage switch tester is a linear rod-type displacement sensor. In this embodiment, the first clamp 20 is used to fix and hold the body of the linear sensor, and the sensor adsorption plate 12 is used to connect the rod of the linear sensor. Furthermore, for the calibration of the high-voltage switch tester, the linear motor 11 offers higher testing accuracy. Therefore, whether for linear displacement testing calibration or rotation angle testing calibration, the linear motor 11 is typically used as the motion detection target. In this embodiment, the operating table 60 is equipped with a controller, the linear motor 11 is electrically connected to the controller, and the operating table 60 is equipped with control buttons.

[0041] The high-voltage switch tester calibration device provided in this embodiment is used as follows:

[0042] When calibrating the high-voltage switch tester for linear displacement testing, the linear sensor can be clamped and fixed in the first fixture 20, and the pull rod of the linear sensor can be connected to the sensor adsorption plate 12. Then, the linear motor 11 is started so that the output end of the linear motor 11 drives the sensor adsorption plate 12, which in turn drives the pull rod of the linear sensor to extend and obtain linear displacement. Then, the displacement data of the output end of the linear motor 11 collected by the data acquisition module is compared with the data fed back to the high-voltage switch tester by the linear sensor for calibration.

[0043] When calibrating the high-voltage switch tester by rotating angle testing, switch the rotating test component 40 to the test connection state, use the second clamp 50 to clamp and fix the rotating sensor of the high-voltage switch, then start the linear motor 11, and use the synchronous transmission mechanism 30 to convert the linear motion of the output end of the linear motor 11 into the rotational motion of the output end. The data acquisition module collects the rotation angle data of the rotating test component 40 and compares it with the data fed back to the high-voltage switch tester by the rotating sensor for calibration.

[0044] It should be understood that when the rotation test assembly 40 is switched to the test connection state, the linear sensor can be clamped and fixed on the first clamp 20 and the pull rod of the linear sensor can be connected to the sensor adsorption plate 12. At the same time, the rotation sensor can be clamped and fixed on the second clamp 50. Then, the linear motor 11 is started. The data acquisition module can simultaneously acquire the linear displacement data of the output end of the linear motor 11 and the rotation angle data transmitted to the rotation test assembly 40 from the rotation output end, thereby enabling synchronous calibration of linear displacement and rotation angle.

[0045] Compared with the prior art, the high-voltage switch tester calibration device provided in this embodiment can not only perform separate tests and calibrations for linear displacement and rotation angle, but also perform simultaneous tests and calibrations for linear displacement and rotation angle. Therefore, it has dual functions of linear displacement test calibration and rotation angle test calibration, which not only improves the convenience of high-voltage switch tester test calibration operations, but also helps to improve test calibration efficiency.

[0046] As one specific embodiment of the aforementioned synchronous transmission mechanism 30, please refer to Figure 2 and Figure 3 The synchronous transmission mechanism 30 includes two synchronous pulleys 31 and a synchronous belt 32 sleeved on the two synchronous pulleys 31; wherein, the synchronous belt 32 is provided with a connecting seat 321, which serves as a linear input end connected to the output end of the linear motor 11; the axle of one of the synchronous pulleys 31 forms a rotary output end.

[0047] The output of the linear motor 11 drives the synchronous belt 32 through the connecting seat 321. The synchronous belt 32 drives the two synchronous pulleys 31 to rotate synchronously. Thus, the axle of either synchronous pulley 31 is used as the rotation output. The rotation test component 40 detects the rotation angle of the rotation output in the test connection state and feeds the rotation angle data back to the data acquisition module. The operating console 60 is equipped with a display screen 61 electrically connected to the data acquisition module to display the data (including rotation angle data and displacement data) acquired by the data acquisition module. At the same time, the rotation sensor detects the rotation angle data of the rotation output and feeds it back to the high-voltage switch tester. By comparing the two rotation angle data, it can be determined whether the high-voltage switch tester needs to be calibrated. Specifically, if the deviation of the two rotation angle data exceeds the set range, the high-voltage switch tester needs to be adjusted. After adjustment, the test is repeated until the rotation angle data deviation meets the requirements.

[0048] In some embodiments, see Figures 2 to 4 The aforementioned rotational test assembly 40 includes a slide 41, a slider 42, a rotating shaft 43, and an encoder 44. The slide 41 is fixedly connected to the base 10. The slider 42 is slidably connected to the slide 41 along the axial direction of the rotational output end. The rotating shaft 43 is rotatably connected to the slider 42 and aligned with the axial direction of the rotational output end. The encoder 44 is mounted on the rotating shaft 43 and electrically connected to the data acquisition module. The slider 42 is used to drive the rotating shaft 43 to move along the axial direction of the rotational output end to form a test connection state or a test standby state.

[0049] The top surface of the slide block 41 and the bottom surface of the slider 42 can be based on a T-shaped or dovetail sliding fit structure. By sliding the slider 42, the rotating shaft 43 can be moved closer to or away from the rotating output end. When the rotating shaft 43 is close to the rotating output end, the two can establish a coaxial transmission fit structure based on a coupling or engaging teeth. This causes the rotating output end to drive the rotating shaft 43 to rotate, and the encoder 44 installed on the rotating shaft 43 can detect the rotation angle data. After the rotation angle data is collected, the slider 42 can be slid to separate the rotating shaft 43 from the rotating output end to form a test standby state. This avoids the synchronous operation of the rotating shaft 43 when performing linear displacement test calibration alone, thereby reducing the energy consumption of the linear motor 11.

[0050] It should be noted that, as Figure 3 and Figure 4 As shown, the rotary output end is equipped with a first end face gear 33, and the end of the rotary shaft 43 facing the rotary output end is equipped with a second end face gear 431. A test connection state is formed when the slider 42 drives the rotary shaft 43 to move until the second end face gear 431 engages with the first end face gear 33. The engagement or disengagement of the first end face gear 33 and the second end face gear 431 achieves the transmission connection and interruption between the rotary output end and the rotary shaft 43. The structure is simple and the transmission is smooth. The test connection state and the test standby state can be achieved simply by sliding the slider 42, making operation convenient.

[0051] Specifically, please refer to Figure 6 In this embodiment, the slide 41 is provided with a rack 411 extending along its axial direction, and an adjusting rod 421 is rotatably connected to the slider 42. A drive gear 422 is sleeved on the adjusting rod 421, and the drive gear 422 meshes with the rack 411. The rack 411 may be located at the center of the slide 41. The adjusting rod 421 passes through the slider 42 and is connected to the drive gear 422 that meshes with the rack 411. Thus, the slider 42 can be adjusted in position by rotating the adjusting rod 421, thereby completing the switching between the test connection state and the test standby state. The operation is simple and convenient. After the adjustment is in place, the meshing of the drive gear 422 and the rack 411 can also restrict the movement of the slider 42, thereby improving the meshing reliability between the first end face gear 33 and the second end face gear 431.

[0052] For some possible implementations, please refer to [link / reference]. Figure 6The slide block 41 is provided with a locking plate 412 extending axially along the output end of the rotation, and the slider 42 is provided with a limiting groove 423. The locking plate 412 passes through the limiting groove 423 and slides in cooperation with it. A locking screw 424 is screwed onto the slider 42, and one end of the locking screw 424 passes through the limiting groove 423 and abuts against the locking plate 412. The sliding of the locking plate 412 within the limiting groove 423 can improve the linear motion stability of the slider 42 on the slide block 41. Furthermore, the abutment of the locking plate 412 by the locking screw 424 can lock the position of the slider 42, preventing displacement of the slider 42 during the cornering test and thus avoiding meshing failure between the first end face gear 33 and the second end face gear 431, thereby improving the stability of the cornering test.

[0053] As an optional structure for the first clamp 20 and the second clamp 50 described above, please refer to Figure 4 Both the first clamp 20 and the second clamp 50 include a fixed base 21, two clamping arms 22, and a drive assembly 23. The fixed base 21 is fixedly connected to the base 10 and has a guide groove 211. The two clamping arms 22 are arranged opposite to each other and slidably connected to the guide groove 211. The drive assembly 23 is connected to the fixed base 21 and is drively connected to the two clamping arms 22 respectively, driving the two clamping arms 22 to move synchronously closer to or further away from the guide groove 211. By using the drive assembly 23 to drive the two clamping arms 22 to move relative to each other along the guide groove 211, the linear sensor can be clamped at the center of the first clamp 20, and the rotary sensor can be clamped at the center of the second clamp 50, thus ensuring the fixed position accuracy of the linear and rotary sensors and avoiding test result errors caused by installation position deviations.

[0054] Figure 4 An optional structural form of the aforementioned drive assembly 23 is shown. The drive assembly 23 includes a drive rod 231 and a crank handle 232 connected to one end of the drive rod 231. The drive rod 231 has a first threaded section 2311 and a second threaded section 2312 with opposite thread directions. The first threaded section 2311 and the second threaded section 2312 are respectively threaded through two clamping arms 22 and screwed into their respective clamping arms 22. Because the first threaded section 2311 and the second threaded section 2312 have different thread directions, when the drive rod 231 is rotated by the crank handle 232, it can drive the two clamping arms 22 to move synchronously relative to each other, thereby ensuring the installation position accuracy of the linear sensor and the rotary sensor. The structure is simple and the operation is convenient.

[0055] It should be noted that, as Figure 5As shown, a limiting annular groove 2313 is provided at the middle position of the drive rod 231, and a limiting clamping plate 212 is provided on the fixed base 21. The limiting clamping plate 212 is located between the two clamping arms 22 and is engaged with the limiting annular groove 2313. The engagement between the limiting clamping plate 212 and the limiting annular groove 2313 can prevent the drive rod 231 from axially moving, thereby ensuring the clamping and fixing position accuracy of the two clamping arms 22 for the linear sensor or the rotary sensor.

[0056] In some embodiments, please refer to Figure 1 The base 10 is provided with a first housing 13, in which the linear motor 11 and the synchronous transmission mechanism 30 are both located; the rotating test assembly 40 has a second housing 45. By providing the first housing 13, the linear motor 11 and the synchronous transmission mechanism 30, which are moving parts, are prevented from being exposed, thus providing protection and preventing operators from accidentally touching the moving parts and causing damage. Similarly, the second housing 45 can provide a protective cover for the rotating test assembly 40, thereby ensuring the operational safety of high-voltage switch testing and calibration.

[0057] 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 calibration device for a high-voltage switch tester, characterized in that, include: A linear motor is horizontally mounted on the base, and a sensor adsorption plate is provided at the output end of the linear motor; The first clamp is disposed on the base and aligned axially with the linear motor. The first clamp is used to clamp and fix the linear sensor of the high voltage switch tester. A synchronous transmission mechanism is provided on the base and located to the side of the linear motor. The synchronous transmission mechanism has a linear input end and a rotary output end, and the linear input end is connected to the output end of the linear motor. A rotating test assembly is disposed on the base and axially aligned with the rotating output end. The rotating test assembly has a test connection state that is docked with the rotating output end, and a test standby state that is separated from the rotating output end. The second clamp is disposed on the base and axially aligned with the rotating test assembly. The second clamp is used to hold and fix the rotating sensor of the high voltage switch tester. An operating platform is mounted on the base and equipped with a data acquisition module. The data acquisition module is used to collect displacement data from the output end of the linear motor and rotation angle data from the rotation test component.

2. The high-voltage switch tester calibration device as described in claim 1, characterized in that, The synchronous transmission mechanism includes two synchronous pulleys and a synchronous belt sleeved on the two synchronous pulleys; wherein, the synchronous belt is provided with a connecting seat, which serves as the linear input end and is connected to the output end of the linear motor; the axle of one of the synchronous pulleys forms the rotary output end.

3. The high-voltage switch tester calibration device as described in claim 2, characterized in that, The rotation test component includes: A slide block is fixedly connected to the base; The slider is slidably connected to the slide block along the axial direction of the rotary output end; A rotating shaft is rotatably connected to the slider and axially aligned with the rotating output end; An encoder is mounted on the rotating shaft and electrically connected to the data acquisition module; The slider is used to drive the rotating shaft to move along the axial direction of the rotating output end to form the test connection state or the test standby state.

4. The high-voltage switch tester calibration device as described in claim 3, characterized in that, The rotary output end is provided with a first end face gear, and the end of the rotary shaft facing the rotary output end is provided with a second end face gear; wherein, the test connection state is formed when the slider drives the rotary shaft to move to the point where the second end face gear and the first end face gear are engaged.

5. The high-voltage switch tester calibration device as described in claim 3, characterized in that, The slide block is provided with a rack extending along its axial direction, and an adjusting rod is rotatably connected to the slider. A drive gear is sleeved on the adjusting rod, and the drive gear meshes with the rack.

6. The high-voltage switch tester calibration device as described in claim 3, characterized in that, The slide block is provided with a locking plate extending axially along the rotary output end, and the slider is provided with a limiting groove; wherein, the locking plate passes through the limiting groove and slides in cooperation with the limiting groove, and a locking screw is screwed onto the slider, one end of the locking screw passing through the limiting groove and abutting against the locking plate.

7. The high-voltage switch tester calibration device as described in claim 1, characterized in that, Both the first clamp and the second clamp include: A fixed base is fixedly connected to the base, and the fixed base is provided with a guide groove; Two clamping arms are arranged opposite to each other and are slidably connected to the guide groove; A drive assembly is connected to the fixed base and is driven to drive the two clamping arms to move synchronously closer to or further away from the guide groove.

8. The high-voltage switch tester calibration device as described in claim 7, characterized in that, The drive assembly includes a drive rod and a crank connected to one end of the drive rod. The drive rod is provided with a first threaded section and a second threaded section with opposite thread directions. The first threaded section and the second threaded section are respectively passed through the two clamping arms and screwed into their respective clamping arms.

9. The high-voltage switch tester calibration device as described in claim 8, characterized in that, The drive rod is provided with a limiting ring groove in the middle position, and the fixed base is provided with a limiting plate. The limiting plate is located between the two clamping arms and is engaged with the limiting ring groove.

10. The calibration device for a high-voltage switch tester as described in any one of claims 1-9, characterized in that, The base is provided with a first housing, and the linear motor and the synchronous transmission mechanism are both located inside the first housing; the rotation test assembly has a second housing.

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