A sliding contact line voltage withstanding test device

Abstract

The application relates to the technical field of trolley line test equipment, and relates to a trolley line voltage-withstanding test equipment which comprises a rack, a controller and a power supply module are integrated in the rack, a control panel is fixedly connected to the surface of the rack, a detection device is arranged on the rack tabletop, the detection device comprises an outer shell fixed on the rack tabletop, a supporting table for supporting a workpiece is slidably connected to the inner wall of the outer shell, a spring one is fixedly connected between the supporting table and the outer shell, a clamping assembly and a rotating assembly are arranged on the inner wall of the outer shell, a toothed plate one and a toothed plate two are fixedly connected to the surface of the supporting table, a driving assembly is arranged on the rotating assembly, and the driving assembly comprises a pneumatic cylinder fixed on the rotating assembly. The trolley line voltage-withstanding test equipment eliminates the high-voltage electric shock risk caused by traditional manual wiring and manual operation in the test area, fundamentally prevents high-voltage test safety accidents, and guarantees the personal safety of operators.

Description

Technical Field

[0001] This invention belongs to the technical field of sliding conductor test equipment, and specifically relates to a sliding conductor withstand voltage test equipment. Background Technology

[0002] The conductor rail withstand voltage testing equipment is a specialized electrical testing device designed for various types of mobile power supply conductor rails, including safety conductor rails, rigid conductor rails, seamless conductor rails, and tubular conductor rails. It is used to conduct insulation withstand voltage performance testing, insulation defect investigation, factory type testing, and periodic maintenance inspections. It is a core and essential testing device to ensure the safety of conductor rail power supply and prevent safety accidents such as leakage breakdown and short circuits. It is also a mandatory testing device for conductor rail factory inspection, project completion acceptance, and preventive maintenance.

[0003] In existing high-voltage insulation withstand voltage testing equipment for sliding contact lines, the preparation for testing generally relies on operators manually clamping high-voltage test clips to achieve electrical connection between the sliding contact line conductor and the withstand voltage testing equipment. During the operation, the operator needs to be in close contact with the high-voltage test area of ​​the sliding contact line. Because there is an equivalent capacitance between the conductor of the sliding contact line and the grounding structure, capacitive charges will remain inside the sliding contact line after the withstand voltage test is completed. These charges cannot be quickly discharged on their own. When the operator manually removes the test clips afterward, they are likely to come into contact with the live conductor, causing electric shock injuries and threatening the personal safety of the operator. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and reasonably designed sliding contact line withstand voltage testing device to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A sliding contact line withstand voltage testing device includes a frame, within which a controller and power supply module are integrated. The controller includes, but is not limited to, a PLC, a microcontroller, or other control module. A control panel is fixedly connected to the surface of the frame. A testing device is mounted on the frame platform. The testing device includes a housing fixed to the frame platform. A support platform for supporting a workpiece is slidably connected to the inner wall of the housing. A spring is fixedly connected between the support platform and the housing. A clamping assembly and a rotating assembly are provided on the inner wall of the housing. A toothed plate and a toothed plate are fixedly connected to the surface of the support platform. A driving assembly is provided on the rotating assembly. The drive assembly includes a miniature cylinder fixed to a rotating assembly. A push plate is fixedly connected to the piston rod of the miniature cylinder. Both ends of the push plate are rotatably connected to connecting rods. A wire clamp is rotatably connected to the end of the connecting rod away from the push plate. The wire clamp is connected to a controller via a wiring harness, so that the wire clamp can be energized and operated under the control of the controller. An optical axis and a photoelectric switch are fixedly connected to the rotating assembly. The wire clamp is slidably connected to the surface of the optical axis. The optical axis can guide the movement direction of the wire clamp, so that the wire clamp can move along the length of the optical axis under the action of the drive assembly and the connecting rods, thereby performing closing and unfolding movements.

[0006] As a further optimization of the present invention, the clamping assembly includes a linkage block rotatably mounted on the inner wall of the housing. A fixing plate is fixedly connected to one side of the linkage block, and a clamping block is fixedly connected to the end of the fixing plate opposite to the linkage block. A rubber pad is fixedly connected to the surface of the clamping block. The cooperation between the clamping block and the rubber pad allows the workpiece on the support platform to be clamped when the fixing plate moves from a horizontal to a vertical state. The end of the linkage block opposite to the fixing plate is an arc-shaped end, and a semi-circular gear tooth is provided on the outer circumferential surface of the arc-shaped end. The linkage block meshes with a gear plate through the gear tooth. When the workpiece is placed on the support platform, the support platform is compressed downward by the weight of the workpiece, and simultaneously drives the gear plate. The gear plate moves downward and meshes with the gear tooth of the linkage block. At this time, the linkage block drives the fixing plate around its rotation axis under the action of the gear plate. One end of the fixing plate is provided with a rounded corner to improve the smoothness of the fixing plate during rotation and avoid interference from the end of the fixing plate on its rotational movement.

[0007] As a further optimization of the present invention, the rotating assembly includes an assembly frame rotatably mounted on the inner wall of the outer shell. A transmission block is fixedly connected to the inner wall of the assembly frame. Rotating shafts are fixedly connected to both sides of the assembly frame, and these shafts are rotatably connected to the inner wall of the outer shell. The rotating shafts determine the rotation axis of the assembly frame, allowing it to move along a designed rotation center. The end of the transmission block near the support platform is arc-shaped, and semi-circular gear teeth are provided on the outer circumferential surface of the arc-shaped end. The transmission block meshes with a gear plate two through these gear teeth. The engagement between the transmission block and the gear plate two allows the assembly frame to rotate when the support platform is pressed by a workpiece. One end of the assembly frame has a rounded corner, and the miniature cylinder is fixedly connected to the surface of the assembly frame. This allows the miniature cylinder to be rotated by the assembly frame. To avoid the movement of the miniature cylinder, the machine frame table has a square cavity adapted to the movement trajectory of the miniature cylinder. The piston rod of the miniature cylinder passes through the inner wall of the assembly frame. The push plate is slidably connected to the inner wall of the assembly frame, which can prevent the push plate from rotating when pushed by the miniature cylinder. The optical axis is fixedly connected to the side surface of the assembly frame. The first photoelectric switch is fixedly connected to the inner wall of the assembly frame. The detection end of the first photoelectric switch is adapted to the square hole of the assembly frame. The detection end of the first photoelectric switch is set at the square hole, so that when the first photoelectric switch is moved close to the workpiece by the assembly frame, it can detect whether the assembly frame is in place, thereby cooperating with the controller to control the operation of the thin-walled cylinder.

[0008] As a further optimization of the present invention, a slider is fixedly connected to the side surface of the support platform. The slider is slidably connected to the inner wall of the housing. The slider can constrain the movement distance of the support platform to ensure that the support platform always moves inside the housing. A guide frame is fixedly connected to the upper surface of the support platform. The opening of the guide frame is in the shape of an outwardly expanding horn from bottom to top. The horn of the guide frame can guide the workpiece during the placement process to ensure that the workpiece is placed centered on the support platform. A blocking block is fixedly connected to the end of the optical axis away from the assembly frame. The blocking block can block the end of the optical axis to limit the movement range of the wire clamp to the optical axis.

[0009] As a further optimization of the present invention, the frame is provided with a transfer device for moving workpieces. The transfer device includes a guide rail fixed to the surface of the frame body, a slide rail slidably connected to the surface of the guide rail, a motor fixedly connected to the upper surface of the slide rail on the right side, a gear fixedly connected to the output end of the motor, a groove extending along its length direction on the side surface of the guide rail, a plurality of transmission teeth fixedly connected to the inner wall of the groove, the plurality of transmission teeth being horizontally and equidistantly distributed along the length direction of the guide rail, the gear meshing with the transmission teeth, the gear being driven by the motor to cooperate with the transmission teeth to move the slide rail, a support frame fixedly connected to the side of the slide rail away from the guide rail, a thin-walled cylinder fixedly connected to the support frame, a gripper cylinder fixedly connected to the piston rod of the thin-walled cylinder, the thin-walled cylinder being able to drive the gripper cylinder to move in the vertical direction under the control of the controller, and a clamping frame fixedly connected to the gripper of the gripper cylinder.

[0010] As a further optimization of the present invention, a photoelectric switch two is fixedly connected to the frame body, and a shielding frame adapted to the photoelectric switch two is fixedly connected to the inner wall of the slide. The shielding frame is T-shaped. The cooperation between the shielding frame and the photoelectric switch two can control the motor to stop working when the slide moves into position, thereby limiting the position of the slide to the designed position. A limit frame is fixedly connected to the side of the piston rod of the thin-walled cylinder away from the gripper cylinder. The limit frame can restrict the workpiece held by the clamping frame from both the left and right ends of the workpiece, preventing the workpiece from moving in the left and right directions when it is held by the clamping frame.

[0011] As a further optimization of the present invention, the output end of the motor penetrates through the inner wall of the slide, the gear is located inside the slide, the slide is slidably connected to the surface of the frame, and the contact between the slide and the frame can further increase the force-bearing surface of the slide, thereby improving the load capacity of the slide. The number of thin-walled cylinders is multiple, and the multiple thin-walled cylinders are horizontally and equidistantly distributed along the length direction of the support frame.

[0012] As a further optimization of the present invention, a discharge device for grounding and discharging residual charge on the workpiece after inspection is provided on the frame table. The discharge device includes a support platform fixed on the frame table, a U-shaped plate fixedly connected to the inner wall of the support platform, a load-bearing plate slidably connected to the inner wall of the U-shaped plate, and a second spring fixedly connected between the load-bearing plate and the U-shaped plate. The second spring can apply a preload to the load-bearing plate, so that the load-bearing plate can maintain its stability in a non-stressed state. A connecting shaft is fixedly connected to the side surface of the load-bearing plate, and a partition is fixedly connected to the end of the connecting shaft opposite to the load-bearing plate. A contact plate for contacting the end of the workpiece is fixedly connected to the surface of the partition. Both the partition and the support platform are made of insulating material, thereby preventing residual charge on the workpiece from being discharged to the frame through them. A circular groove is opened on the side of the contact plate opposite to the partition. A conductive wire is fixedly connected to the inner wall of the circular groove. The conductive wire is connected to the grounding end of the frame, so that it can cooperate with the contact plate that contacts the workpiece to discharge the residual charge on the workpiece to the grounding wire.

[0013] As a further optimization of the present invention, the connecting shaft slides through the surface of the U-shaped plate, and the second spring is sleeved on the connecting shaft. By sleeved on the connecting shaft, the connecting shaft can guide the deformation direction of the second spring during deformation, so as to avoid bending of the second spring during deformation. A protective shell is fixedly connected to the surface of the contact plate, and the conductive wire passes through the shell of the protective shell. The protective shell is fixedly connected to the surface of the partition. The protective shell is made of insulating material, which, while cooperating with the partition to protect the contact plate, can reduce the exposed area of ​​the contact plate, thereby ensuring the safety of the contact plate during use.

[0014] The beneficial effects of this invention are as follows: 1. By integrating a transfer device and a testing device within the frame, a fully isolated withstand voltage testing system of "manual feeding - automatic transfer - automatic wiring and testing" is constructed. When operators perform withstand voltage testing on the sliding contact line, they only need to place the workpiece in the safe placement area outside the high-voltage testing area. The equipment can then automatically transfer the sliding contact line to the testing station via the transfer device. The testing device automatically completes the connection of the high-voltage test line and the entire withstand voltage testing process. The entire process does not require operators to enter the high-voltage testing area, thus achieving physical isolation between operators and high-voltage live parts from the source. This design eliminates the risk of high-voltage electric shock caused by traditional manual wiring and manual entry into the testing area, fundamentally preventing high-voltage testing safety accidents and ensuring the personal safety of operators.

[0015] 2. By integrating a discharge device within the frame, a safe residual charge discharge system is constructed for the entire high-voltage testing process. The equipment can automatically discharge the sliding contact line at two points: before and after the withstand voltage test. This completely discharges the residual static charge and residual voltage on the sliding contact line conductor, ensuring that the workpiece is always in a zero-potential safe state when the operator handles the sliding contact line. This design eliminates the risk of electric shock caused by residual voltage from the residual charge on the sliding contact line after high-voltage testing at its source. It eliminates the need for manual discharge operations, avoiding the risk of operational oversights during manual discharge and significantly improving the safety of the testing operation. Structurally, it protects the personal safety of the operator and fully meets the safety production requirements for high-voltage testing operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention with the frame in the open state; Figure 3 This is the present invention. Figure 1 Rear view diagram; Figure 4 This is the present invention. Figure 1 The diagram on the right; Figure 5 This is a schematic diagram of the workpiece detection state according to the present invention; Figure 6 This is a schematic diagram of the connection structure between the outer shell and the support platform of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the connection structure between the assembly frame and the transmission block of the present invention; Figure 9 This is a schematic diagram of the connection structure between the miniature cylinder and the push plate of the present invention; Figure 10 This is a schematic diagram of the outer casing of the present invention; Figure 11 This is a schematic diagram of the transfer device of the present invention; Figure 12 This is a schematic diagram of the connection structure between the motor and the gear of the present invention; Figure 13 This is a schematic diagram of the state of the photoelectric switch two triggered by the shielding frame of the present invention; Figure 14 This is a schematic diagram of the discharge device of the present invention.

[0017] In the diagram: 1. Frame; 2. Control panel; 3. Detection device; 31. Housing; 32. Support platform; 33. Spring 1; 34. Slider; 35. Clamping assembly; 351. Linkage block; 352. Fixing plate; 353. Clamping block; 354. Rubber pad; 36. Toothed plate 1; 37. Rotating assembly; 371. Assembly frame; 372. Transmission block; 373. Rotating shaft; 38. Toothed plate 2; 39. Drive assembly; 391. Miniature cylinder; 392. Push plate; 310. Connecting rod; 311. Wire clamp; 312. Optical axis; 313. Photoelectric switch one; 314. Guide frame; 4. Transfer device; 41. Guide rail; 42. Slide carriage; 43. Motor; 44. Gear; 45. Photoelectric switch two; 46. Shielding frame; 47. Support frame; 48. Thin-walled cylinder; 49. Gripper cylinder; 410. Clamping frame; 411. Limiting frame; 5. Discharge device; 51. Bearing platform; 52. U-shaped plate; 53. Load plate; 54. Connecting shaft; 55. Spring two; 56. Partition plate; 57. Contact plate; 58. Protective shell; 59. Conductive wire; 6. Workpiece. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example: Please refer to Figures 1-14A sliding contact line withstand voltage testing device includes a frame 1, which integrates a controller and a power supply module. The controller includes, but is not limited to, a PLC, a microcontroller, or other control modules. A control panel 2 is fixedly connected to the surface of the frame 1. A testing device 3 is mounted on the table of the frame 1. The testing device 3 includes a housing 31 fixed to the table of the frame 1. A support platform 32 for supporting a workpiece 6 is slidably connected to the inner wall of the housing 31. A spring 33 is fixedly connected between the support platform 32 and the housing 31. A clamping assembly 35 and a rotating assembly 37 are provided on the inner wall of the housing 31. A toothed plate 36 and a toothed plate 38 are fixedly connected to the surface of the support platform 32. A driving assembly 39 is provided on the rotating assembly 37. The driving assembly 39 includes components fixed to the rotating assembly 35. The miniature cylinder 391 on the 7 has a push plate 392 fixedly connected to its piston rod. Both ends of the push plate 392 are rotatably connected to connecting rods 310. The end of the connecting rod 310 away from the push plate 392 is rotatably connected to a wire clamp 311. The wire clamp 311 is connected to the controller through a wire harness, so that the wire clamp 311 can be energized and work under the control of the controller. The rotating assembly 37 has an optical axis 312 and a photoelectric switch 313 fixedly connected to it. The wire clamp 311 is slidably connected to the surface of the optical axis 312. The optical axis 312 can guide the movement direction of the wire clamp 311, so that the wire clamp 311 can move along the length of the optical axis 312 under the action of the drive assembly 39 and the connecting rod 310, thereby performing closing and unfolding movements.

[0020] Please see Figures 5-10 The clamping assembly 35 includes a linkage block 351 rotatably mounted on the inner wall of the housing 31. A fixing plate 352 is fixedly connected to one side of the linkage block 351. A clamping block 353 is fixedly connected to the end of the fixing plate 352 opposite to the linkage block 351. A rubber pad 354 is fixedly connected to the surface of the clamping block 353. The cooperation between the clamping block 353 and the rubber pad 354 allows the workpiece 6 on the support platform 32 to be clamped when the fixing plate 352 moves from a horizontal to a vertical position. The end of the linkage block 351 opposite to the fixing plate 352 is an arc-shaped end, and a certain feature is provided on the outer circumferential surface of the arc-shaped end. The linkage block 351 engages with the gear plate 36 via the gear teeth. When the workpiece 6 is placed on the support platform 32, the support platform 32 is compressed downward by the weight of the workpiece 6, and simultaneously drives the gear plate 36. The gear plate 36 moves downward and engages with the gear teeth of the linkage block 351. At this time, the linkage block 351 drives the fixed plate 352 around its rotation axis 373 under the action of the gear plate 36. One end of the fixed plate 352 is provided with a rounded corner to improve the smoothness of the fixed plate 352 during rotation and avoid interference to its rotational movement caused by the end of the fixed plate 352.

[0021] Please see Figures 5-10The rotating assembly 37 includes an assembly frame 371 rotatably mounted on the inner wall of the outer casing 31. A transmission block 372 is fixedly connected to the inner wall of the assembly frame 371. Rotating shafts 373 are fixedly connected to both sides of the assembly frame 371, and are rotatably connected to the inner wall of the outer casing 31. The rotating shafts 373 determine the direction of rotation of the assembly frame 371, allowing the assembly frame 371 to move along a designed rotation center. The end of the transmission block 372 near the support platform 32 is an arc-shaped end, with semi-circular gear teeth on its outer circumferential surface. The transmission block 372 meshes with a gear plate 38 through these gear teeth. The engagement between the transmission block 372 and the gear plate 38 allows the assembly frame 371 to rotate when the support platform 32 is pressed by the workpiece 6. One end of the assembly frame 371 has a rounded corner. A miniature cylinder 391 is fixedly connected to the surface of the assembly frame 371, allowing the miniature cylinder 391 to rotate. 91 can be rotated by the assembly frame 371. In order to avoid the movement of the micro cylinder 391, the table surface of the frame 1 is provided with a square cavity adapted to the movement trajectory of the micro cylinder 391. The piston rod of the micro cylinder 391 passes through the inner wall of the assembly frame 371. The push plate 392 is slidably connected to the inner wall of the assembly frame 371, which can prevent the push plate 392 from rotating when pushed by the micro cylinder 391. The optical axis 312 is fixedly connected to the side surface of the assembly frame 371. The photoelectric switch 313 is fixedly connected to the inner wall of the assembly frame 371. The detection end of the photoelectric switch 313 is adapted to the square hole of the assembly frame 371. The detection end of the photoelectric switch 313 is set at the square hole, so that when the photoelectric switch 313 is driven by the assembly frame 371 to approach the workpiece 6, it can detect whether the assembly frame 371 is in place, thereby cooperating with the controller to control the thin-walled cylinder 48 to work.

[0022] Please see Figures 5-10 A slider 34 is fixedly connected to the side surface of the support platform 32. The slider 34 is slidably connected to the inner wall of the housing 31. The slider 34 can constrain the movement distance of the support platform 32 to ensure that the support platform 32 always moves inside the housing 31. A guide frame 314 is fixedly connected to the upper surface of the support platform 32. The opening of the guide frame 314 is in the shape of an outwardly expanding horn mouth from bottom to top. The horn mouth of the guide frame 314 can guide the workpiece 6 during the placement process to ensure that the workpiece 6 is placed centered on the support platform 32. A blocking block is fixedly connected to the end of the optical axis 312 away from the assembly frame 371. The blocking block can block the end of the optical axis 312 to limit the movement range of the wire clamp 311 to the optical axis 312.

[0023] Please see Figures 11-13The frame 1 is equipped with a transfer device 4 for moving the workpiece 6. The transfer device 4 includes a guide rail 41 fixed to the surface of the frame 1. A carriage 42 is slidably connected to the surface of the guide rail 41. A motor 43 is fixedly connected to the upper surface of the right carriage 42. A gear 44 is fixedly connected to the output end of the motor 43. A groove extending along the length direction is formed on the side surface of the guide rail 41. Multiple transmission teeth are fixedly connected to the inner wall of the groove. The multiple transmission teeth are horizontally and equidistantly distributed along the length direction of the guide rail 41. Gear 44 meshes with transmission gear. Under the drive of motor 43, gear 44 can cooperate with transmission gear to move slide 42. A support frame 47 is fixedly connected to the side of slide 42 away from guide rail 41. A thin-walled cylinder 48 is fixedly connected to the support frame 47. A gripper cylinder 49 is fixedly connected to the piston rod of thin-walled cylinder 48. Thin-walled cylinder 48 can drive gripper cylinder 49 to move in the vertical direction under the control of controller. A clamping frame 410 is fixedly connected to the gripper of gripper cylinder 49.

[0024] Please see Figures 11-13 A photoelectric switch 45 is fixedly connected to the frame 1. A shielding frame 46 adapted to the photoelectric switch 45 is fixedly connected to the inner wall of the slide 42. The shielding frame 46 is T-shaped. The cooperation between the shielding frame 46 and the photoelectric switch 45 can control the motor 43 to stop working when the slide 42 moves into position, thereby limiting the position of the slide 42 to the designed position. A limit frame 411 is fixedly connected to the side of the piston rod of the thin-walled cylinder 48 away from the gripper cylinder 49. The limit frame 411 can restrict the workpiece 6 held by the clamping frame 410 from the left and right ends of the workpiece 6, preventing the workpiece 6 from moving in the left and right directions when it is clamped by the clamping frame 410.

[0025] Please see Figures 11-13 The output end of the motor 43 passes through the inner wall of the slide 42, the gear 44 is located inside the slide 42, the slide 42 is slidably connected to the surface of the frame 1, the contact between the slide 42 and the frame 1 can further increase the force-bearing surface of the slide 42, thereby improving the load capacity of the slide 42. There are multiple thin-walled cylinders 48, and the multiple thin-walled cylinders 48 are horizontally and equidistantly distributed along the length direction of the support frame 47.

[0026] Please see Figure 1 , Figure 2 and Figure 14The machine frame 1 is equipped with a discharge device 5 for grounding and discharging residual charge on the workpiece 6 after inspection. The discharge device 5 includes a support platform 51 fixed to the machine frame 1. A U-shaped plate 52 is fixedly connected to the inner wall of the support platform 51. A load-bearing plate 53 is slidably connected to the inner wall of the U-shaped plate 52. A second spring 55 is fixedly connected between the load-bearing plate 53 and the U-shaped plate 52. The second spring 55 can apply a preload to the load-bearing plate 53, so that the load-bearing plate 53 can maintain its stability in the non-stressed state. A connecting shaft is fixedly connected to the side surface of the load-bearing plate 53. 54. A partition plate 56 is fixedly connected to one end of the connecting shaft 54 ​​away from the load plate 53. A contact plate 57 for contacting the end of the workpiece 6 is fixedly connected to the surface of the partition plate 56. Both the partition plate 56 and the support platform 51 are made of insulating material to prevent residual charge on the workpiece 6 from being discharged to the frame 1 through both. A circular groove is opened on the side of the contact plate 57 away from the partition plate 56. A conductive wire 59 is fixedly connected to the inner wall of the circular groove. The conductive wire 59 is connected to the grounding end of the frame 1 so that it can cooperate with the contact plate 57 for contacting the workpiece 6 to discharge residual charge on the workpiece 6 to the grounding wire.

[0027] Please see Figure 14 The connecting shaft 54 ​​slides through the surface of the U-shaped plate 52. The second spring 55 is sleeved on the connecting shaft 54. By sleeved on the connecting shaft 54, the connecting shaft 54 ​​can guide the deformation direction of the second spring 55 during deformation, so as to avoid bending of the second spring 55 during deformation. A protective shell 58 is fixedly connected to the surface of the contact plate 57. The conductive wire 59 passes through the shell of the protective shell 58. The protective shell 58 is fixedly connected to the surface of the partition 56. The protective shell 58 is made of insulating material. While protecting the contact plate 57 in conjunction with the partition 56, it can reduce the exposed area of ​​the contact plate 57, thereby ensuring the safety of the contact plate 57 during use.

[0028] It should be noted that, when using this type of sliding contact line withstand voltage testing equipment, the protective door of the frame 1 is opened, and the workpiece 6 to be tested is placed on the support platform 51 of the discharge station. During the lowering process of the workpiece 6, the two end faces are pressed down along the guide slope of the contact plate 57, pushing the contact plate 57, the partition plate 56 and the connecting shaft 54 ​​to move outward, compressing the second spring 55. When the bottom surface of the workpiece 6 is completely on the platform 51, the second spring 55 rebounds and pushes the contact plate 57 to elastically press the two end faces of the workpiece 6, achieving self-adaptive contact. After placement, the protective door is closed, and the contact plate 57 is connected to the grounding terminal through the conductive wire 59 to pre-discharge the residual static electricity on the surface of the workpiece 6. After the protective door is fully closed, the test program is started via control panel 2. The controller controls the transfer device 4 to operate, the thin-walled cylinder 48 extends and drives the gripper cylinder 49 to descend to its position. The gripper cylinder 49 drives the clamping frame 410 to clamp the workpiece 6. At the same time, the limit frame 411 restricts the lateral movement of the workpiece 6 from both sides. Then the thin-walled cylinder 48 retracts and lifts the workpiece 6. The motor 43 starts and drives the gear 44 to rotate. Through the meshing with the transmission gear of the guide rail 41, the slide 42 moves along the guide rail 41 towards the detection workpiece. When the slide 42 moves, the shield 46 on the slide 42 moves synchronously toward the photoelectric switch 45 on the detection station side; when the shield 46 moves to the detection position of the photoelectric switch 45 on the detection station, the controller controls the motor 43 to stop, the slide 42 and the support frame 47 stop precisely above the detection station, the thin-walled cylinder 48 extends to drive the workpiece 6 to fall down, the workpiece 6 falls to the surface of the support platform 32 in the center under the guidance of the flared mouth of the guide frame 314, the gripper cylinder 49 releases and resets, and the thin-walled cylinder 48 drives the gripper to lift and avoid; The workpiece 6 presses down on the support 32 to compress the spring 33, which simultaneously drives the toothed plate 36 and toothed plate 38 to move vertically downward. The toothed plate 36 meshes with the half-circular gear teeth of the linkage block 351, causing the fixing plate 352 and clamping block 353 to flip inward. The rubber pad 354 elastically presses the side wall of the workpiece 6, completing the automatic centering and clamping of the workpiece 6. The toothed plate 38 meshes with the half-circular gear teeth of the transmission block 372, causing the assembly frame 371 to flip towards the workpiece 6. The micro cylinder 391, wire clamp 311 and photoelectric switch 313 rotate synchronously with the assembly frame 371 to their positions. When the assembly frame 371 rotates to the vertical position, the photoelectric switch 313 is triggered. The controller controls the micro cylinder 391 to retract and pull the push plate 392. Through the connecting rod 310, the wire clamps on both sides move towards each other along the optical axis 312, clamping the conductive end faces at both ends of the workpiece 6. After clamping and docking are completed, the controller controls the power supply module to output the test voltage of the set parameters, which is applied to both ends of the workpiece 6 through the wire clamp 311 to carry out the withstand voltage test. The pass standard of the test refers to the existing test standard. After the test is completed, the power supply module gradually reduces the voltage to zero, the micro cylinder 391 extends to push the push plate 392, and drives the wire clamps 311 on both sides to open and detach from the workpiece 6. After the test voltage drops to zero, the controller controls the transfer device 4 to repeat the clamping action, lifting the workpiece 6 from the support platform 32. During the process of the workpiece 6 leaving the support platform 32, the spring 33 rebounds and pushes the support platform 32 to reset upward, driving the toothed plate 36 and toothed plate 38 to move upward synchronously. Through the meshing of the gear teeth, the linkage block 351 and the transmission block 372 are driven to rotate in the opposite direction. The clamping assembly 35 and the rotating assembly 37 are automatically reset synchronously, avoiding the lifting and transfer path of the workpiece 6. The transfer device 4 moves the workpiece 6 back to the discharge station. The shielding frame 46 on the slide 42 triggers the photoelectric switch of the loading position and controls the motor 43 to stop and position. The thin-walled cylinder 48 moves down and cooperates with the gripper cylinder 49 and the clamping frame 410 to place the workpiece 6 on the support table 51. During this process, the second spring 55 pushes the contact plate 57 to elastically press the two ends of the workpiece 6 again. The high voltage charge remaining from the test is completely discharged to the grounding end through the conductive line 59 to ensure the electrical safety of the unloading operation. By integrating a transfer device 4 and a testing device 3 within the frame 1, a fully isolated withstand voltage testing system of "manual feeding - automatic transfer - automatic wiring test" is constructed. When operators perform withstand voltage tests on the sliding contact line, they only need to place the workpiece 6 in the safe placement area outside the high-voltage test area. The equipment can then automatically transfer the sliding contact line to the test station via the transfer device 4. The testing device 3 automatically completes the connection of the high-voltage test line and the entire withstand voltage test process. Throughout the entire process, operators do not need to enter the high-voltage test area, thus achieving physical isolation between operators and high-voltage live parts from the source. This design eliminates the risk of high-voltage electric shock caused by traditional manual wiring and manual entry into the test area, fundamentally preventing the occurrence of high-voltage test safety accidents and ensuring the personal safety of operators.

[0029] Among them, the controller, power supply module, control panel 2, miniature cylinder 391, photoelectric switch 1 313, motor 43, photoelectric switch 2 45, thin-walled cylinder 48 and gripper cylinder 49 integrated in the frame 1 are all existing technologies, and their working and control principles will not be elaborated here. For the connection parts between the parts, welding, bolt fixing, interference fit and other connection methods can be selected according to the requirements of the connection position of the parts. In addition, for the parts in different positions, the materials suitable for their working environment can be selected according to the working conditions and requirements.

[0030] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A sliding contact line withstand voltage testing device, comprising a frame (1), characterized in that: A control panel (2) is fixedly connected to the surface of the frame (1). A detection device (3) is provided on the table of the frame (1). The detection device (3) includes a housing (31) fixed to the table of the frame (1). A support platform (32) is slidably connected to the inner wall of the housing (31). A spring (33) is fixedly connected between the support platform (32) and the housing (31). A clamping assembly (35) and a rotating assembly (37) are provided on the inner wall of the housing (31). A toothed plate (36) and a toothed plate (38) are fixedly connected to the surface of the support platform (32). The rotating assembly (37) is... 7) A drive assembly (39) is provided. The drive assembly (39) includes a miniature cylinder (391) fixed on the rotating assembly (37). A push plate (392) is fixedly connected to the piston rod of the miniature cylinder (391). Both ends of the push plate (392) are rotatably connected to a connecting rod (310). A wire clamp (311) is rotatably connected to the end of the connecting rod (310) away from the push plate (392). An optical axis (312) and a photoelectric switch (313) are fixedly connected on the rotating assembly (37). The wire clamp (311) is slidably connected to the surface of the optical axis (312).

2. The sliding contact line withstand voltage testing device according to claim 1, characterized in that: The clamping assembly (35) includes a linkage block (351) rotatably mounted on the inner wall of the outer shell (31). A fixing plate (352) is fixedly connected to one side of the linkage block (351). A clamping block (353) is fixedly connected to one end of the fixing plate (352) away from the linkage block (351). A rubber pad (354) is fixedly connected to the surface of the clamping block (353). The end of the linkage block (351) away from the fixing plate (352) is an arc-shaped end. Half-circumferential teeth are provided on the outer circumferential surface of the arc-shaped end. The linkage block (351) meshes with a toothed plate (36) through the teeth. One end of the fixing plate (352) is provided with a rounded corner.

3. The sliding contact line withstand voltage testing device according to claim 2, characterized in that: The rotating assembly (37) includes an assembly frame (371) rotatably mounted on the inner wall of the outer shell (31). A transmission block (372) is fixedly connected to the inner wall of the assembly frame (371). A rotating shaft (373) is fixedly connected to both sides of the assembly frame (371). The rotating shaft (373) is rotatably connected to the inner wall of the outer shell (31). The end of the transmission block (372) near the support platform (32) is an arc-shaped end. Half-circumferential gear teeth are provided on the outer circumferential surface of the arc-shaped end. The transmission block (372) meshes with the gear plate (38) through the gear teeth. One end of the mounting bracket (371) is rounded. The miniature cylinder (391) is fixedly connected to the surface of the mounting bracket (371). The piston rod of the miniature cylinder (391) passes through the inner wall of the mounting bracket (371). The push plate (392) is slidably connected to the inner wall of the mounting bracket (371). The optical axis (312) is fixedly connected to the side surface of the mounting bracket (371). The photoelectric switch (313) is fixedly connected to the inner wall of the mounting bracket (371). The detection end of the photoelectric switch (313) is adapted to the square hole of the mounting bracket (371).

4. The sliding contact line withstand voltage testing device according to claim 3, characterized in that: A slider (34) is fixedly connected to the side surface of the support (32). The slider (34) is slidably connected to the inner wall of the outer shell (31). A guide frame (314) is fixedly connected to the upper surface of the support (32). The opening of the guide frame (314) is in the shape of a flared mouth that expands outward from bottom to top. A block is fixedly connected to the end of the optical axis (312) that is away from the assembly frame (371).

5. The conductor rail withstand voltage testing device according to claim 1, characterized in that: The frame (1) is provided with a transfer device (4). The transfer device (4) includes a guide rail (41) fixed on the surface of the frame (1). A slide (42) is slidably connected to the surface of the guide rail (41). A motor (43) is fixedly connected to the upper surface of the slide (42) on the right side. A gear (44) is fixedly connected to the output end of the motor (43). A groove extending along its length is opened on the side surface of the guide rail (41). Multiple transmission teeth are fixedly connected to the inner wall of the groove. The multiple transmission teeth are horizontally and equidistantly distributed along the length of the guide rail (41). The gear (44) meshes with the transmission teeth. A support frame (47) is fixedly connected to the side of the slide (42) away from the guide rail (41). A thin-walled cylinder (48) is fixedly connected to the support frame (47). A gripper cylinder (49) is fixedly connected to the piston rod of the thin-walled cylinder (48). A clamping frame (410) is fixedly connected to the gripper of the gripper cylinder (49).

6. The conductor rail withstand voltage testing device according to claim 5, characterized in that: The frame (1) is fixedly connected to a photoelectric switch (45), and the inner wall of the slide (42) is fixedly connected to a shield (46) adapted to the photoelectric switch (45). The shield (46) is T-shaped, and the piston rod of the thin-walled cylinder (48) is fixedly connected to a limit frame (411) on the side away from the gripper cylinder (49).

7. The conductor rail withstand voltage testing device according to claim 5, characterized in that: The output end of the motor (43) passes through the inner wall of the slide (42), the gear (44) is located inside the slide (42), the slide (42) is slidably connected to the surface of the frame (1), and there are multiple thin-walled cylinders (48), which are horizontally and equidistantly distributed along the length of the support frame (47).

8. The conductor rail withstand voltage testing device according to claim 1, characterized in that: A discharge device (5) is provided on the table surface of the frame (1). The discharge device (5) includes a support platform (51) fixed on the table surface of the frame (1). A U-shaped plate (52) is fixedly connected to the inner wall of the support platform (51). A load-bearing plate (53) is slidably connected to the inner wall of the U-shaped plate (52). A spring (55) is fixedly connected between the load-bearing plate (53) and the U-shaped plate (52). A connecting shaft (54) is fixedly connected to the side surface of the load-bearing plate (53). A partition plate (56) is fixedly connected to the end of the connecting shaft (54) away from the load-bearing plate (53). A contact plate (57) is fixedly connected to the surface of the partition plate (56). A circular groove is opened on the side of the contact plate (57) away from the partition plate (56). A conductive wire (59) is fixedly connected to the inner wall of the circular groove.

9. The sliding contact line withstand voltage testing device according to claim 8, characterized in that: The connecting shaft (54) slides through the surface of the U-shaped plate (52), the second spring (55) is sleeved on the connecting shaft (54), the surface of the contact plate (57) is fixedly connected to the protective shell (58), the conductive wire (59) passes through the shell of the protective shell (58), and the protective shell (58) is fixedly connected to the surface of the partition plate (56).

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