A surge arrester detection pipeline

Abstract

This invention relates to the technical field of surge arrester testing, and particularly to a surge arrester testing production line, comprising at least one testing fixture and multiple testing units arranged sequentially along the production line. The testing fixture supports the surge arrester and is movable along the production line. The testing fixture is equipped with a high-voltage input conductive plate and a low-voltage input conductive plate. Each testing unit includes a movable testing probe, and the movement of the testing probe causes it to contact or disconnect from the high-voltage and low-voltage input conductive plates. By arranging each testing unit along the production line and sequentially electrically connecting or disconnecting the testing probes of each unit from the surge arrester, continuous testing of multiple electrical performance characteristics can be achieved, thereby improving the testing efficiency of the surge arrester. Furthermore, the point-to-surface contact between the testing probes and the high-voltage and low-voltage input conductive plates greatly improves the convenience and accuracy of the electrical connection.

Description

Technical Field

[0001] This invention relates to the technical field of surge arrester testing, and in particular to a surge arrester testing production line. Background Technology

[0002] In existing technologies, when performing multiple electrical performance tests, it is necessary to manually connect the testing unit corresponding to a certain test item to the surge arrester for testing, and then disconnect the surge arrester from the testing unit after the test is completed before proceeding to the next test item. The entire process is relatively fragmented and involves many steps. Different testing equipment is set up in different locations, requiring manual relocation of the surge arrester multiple times, and manual wiring and disconnection are also required multiple times. This makes it impossible to achieve assembly line operation, resulting in low testing efficiency. Summary of the Invention

[0003] To at least partially solve the aforementioned problems in the prior art, the present invention provides a surge arrester testing production line.

[0004] A surge arrester testing production line includes multiple testing units and at least one testing fixture. The multiple testing units are used to test one of multiple electrical performance parameters of the surge arrester. The multiple testing units are arranged sequentially along the production line. The testing fixture is used to support the surge arrester and can move along the production line.

[0005] The testing fixture is provided with a support for supporting the surge arrester, a high-voltage input conductive sheet and a low-voltage input conductive sheet, as well as a conductive sheet for electrical connection between the surge arrester and the high-voltage input conductive sheet and the low-voltage input conductive sheet;

[0006] The detection unit includes a movable detection probe, which includes a high-voltage contact probe and a low-voltage contact probe. The movement of the detection probe causes the high-voltage contact probe and the low-voltage contact probe to contact or detach from the high-voltage input conductive sheet and the low-voltage input conductive sheet, respectively.

[0007] Optionally, the detection unit includes a motion driving component for driving the detection probe to move;

[0008] The moving drive assembly includes a moving cylinder and a connecting bracket, the detection probe is disposed on the connecting bracket, and the moving cylinder is used to drive the connecting bracket to move; or...

[0009] The motion drive assembly includes a motion motor, a lead screw, and a nut slider. The motion motor drives the lead screw to rotate, the nut slider is configured to slide along the lead screw, and the detection probe is disposed on the nut slider.

[0010] Optionally, the production line is provided with a stop unit, which is used to stop the testing fixture;

[0011] The stop unit includes a stop drive assembly and a stop member. The stop drive assembly includes a stop cylinder, a connecting frame, and a hinge seat. The stop member is disposed at one end of the connecting frame, and the other end of the connecting frame is hinged to the hinge seat. The stop cylinder is connected to the connecting frame to drive the connecting frame to rotate around the hinge point, so that the stop member switches between a stop position and a non-stop position.

[0012] Optionally, one end of the connecting frame includes a roller bracket, and the blocking member consists of two stopping rollers mounted on the roller bracket.

[0013] Optionally, the production line is further provided with a clamping unit, which is used to clamp the surge arrester onto or remove it from the testing fixture.

[0014] The gripping unit includes a robotic arm, a gripping drive assembly, and gripping components. The gripping components include a first gripping component and a second gripping component disposed opposite to each other for gripping a surge arrester. The gripping drive assembly includes a gripping cylinder. The second gripping component is fixedly disposed relative to the gripping cylinder. The output end of the gripping cylinder is fixedly connected to the first gripping component to drive the first gripping component and the second gripping component to close or open. The gripping drive assembly is connected to the robotic arm.

[0015] Optionally, the clamping unit further includes a movable slide rail, and there are two clamping drive components and two clamping members, which are slidably connected to the movable slide rail. The movable slide rail is provided with anti-collision limiting components.

[0016] Optionally, the assembly line includes a first double-speed conveyor belt, a second double-speed conveyor belt, a first arc-shaped roller conveyor, and a second arc-shaped roller conveyor. The first double-speed conveyor belt and the second double-speed conveyor belt are arranged in parallel, and the first arc-shaped roller conveyor and the second arc-shaped roller conveyor are respectively spliced ​​to both ends of the first double-speed conveyor belt and the second double-speed conveyor belt.

[0017] Optionally, anti-collision limit blocks are provided at both ends of the detection fixture along the moving direction.

[0018] Optionally, the testing fixture is provided with a plurality of auxiliary guide wheels, which are respectively arranged on both sides of the testing fixture to assist the testing fixture in being transported along the production line.

[0019] Optionally, the plurality of detection units include at least two of the following: a power frequency test module, a partial discharge detection module, a residual voltage detection module, a DC detection module, and a discharge module.

[0020] Beneficial Technical Effects: In a surge arrester testing production line of the present invention, at least one testing fixture and multiple testing units are provided. The multiple testing units are arranged sequentially along the production line. The testing fixture supports the surge arrester and can move along the production line. Each testing unit includes a movable testing probe. The movement of the testing probe electrically connects or disconnects the testing probe from the surge arrester. When the surge arrester needs to be tested, it is placed on the testing fixture. When the testing fixture is transported to one of the testing units via the production line, the testing probe is moved, electrically connecting the testing probe to the surge arrester on the testing fixture, thereby enabling the testing unit to perform corresponding electrical performance tests on the surge arrester. After the test is completed, the testing probe is moved again, disconnecting the testing probe from the surge arrester. Through a scientifically designed and rationally configured production line and testing fixture, the problems of scattered testing of multiple electrical performance of surge arresters, cumbersome manual wiring and disconnection, low testing efficiency, and insufficient connection accuracy in existing technologies have been solved. At the same time, the adaptability, convenience, reliability, safety, and equipment stability of the testing are taken into account. Specifically, the structural design of the testing fixture enables it to adapt to various specifications and types of surge arresters. The support components on the fixture can be adapted to the size and shape of the surge arrester to ensure that the position of the surge arrester is fixed during the testing process and avoid testing deviations caused by unstable support. The design of the high-voltage input conductive plate, low-voltage input conductive plate, and conductive components on the fixture can achieve reliable electrical connection with the electrodes of different types of surge arresters without the need to change the fixture or adjust the conductive structure. This greatly expands the scope of testing application, reduces equipment investment costs, and improves equipment utilization.

[0021] Meanwhile, this invention constructs an integrated testing mode that combines tooling support, continuous conveying, and sequential testing by arranging multiple testing units sequentially along the production line and using testing fixtures that can move along the production line. This changes the decentralized operation process in the prior art. The operator only needs to place the surge arrester to be tested on the testing fixture once, without repeated wiring. The testing fixture will then be automatically conveyed along the production line, passing through each testing unit in sequence. The testing probe of each testing unit will automatically move and dock with the conductive structure on the fixture. After the test is completed, it will automatically disconnect. This realizes continuous and streamlined operation of multiple electrical performance tests, effectively reducing the number of manual wiring and disconnection times, avoiding time waste, and greatly improving testing efficiency.

[0022] In addition, the electrical connection structure design of the testing fixture and the testing unit solves the problems of poor contact and wiring errors that are easy to occur in traditional manual wiring. It simplifies the testing preparation work and reduces the difficulty of operation. The high-voltage contact probe and the low-voltage contact probe of the testing unit are precisely connected to the conductive sheet on the fixture through the moving drive component. The point-to-surface contact method ensures uniform contact and stable pressure, reduces contact resistance, avoids test data deviation, improves test accuracy and convenience, and reduces the probability of operational errors.

[0023] In summary, this invention, through the collaborative design of the production line and testing fixtures, achieves a comprehensive improvement in testing adaptability, convenience, accuracy, and safety. It can efficiently and accurately complete multiple electrical performance tests of surge arresters of various specifications and types, providing an efficient and reliable solution for the factory quality inspection of surge arresters, and has significant practical value and promotional significance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a surge arrester testing production line according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the moving drive component structure of the detection unit according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the moving drive component structure of the detection unit according to another embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a surge arrester testing fixture according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the interaction between a gapped surge arrester and a testing fixture according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of a gapped surge arrester according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the coupling between a cable-connected surge arrester and a testing fixture according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the first support groove according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the second support groove according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the elastic support structure according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the structure of a cable clamp according to an embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the structure of a stop unit according to an embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram of the gripping unit according to an embodiment of the present invention;

[0037] Figure 14This is a schematic diagram of the clamping unit structure for removing the surge arrester according to an embodiment of the present invention. Detailed Implementation

[0038] The following reference Figures 1-14 This invention describes a surge arrester testing production line.

[0039] Surge arresters typically include ordinary surge arresters, gap surge arresters, and cable surge arresters. In addition, gap surge arresters have a high-voltage electrode rod 291 and a discharge gap rod 292 mounted on their body. Cable surge arresters have cables connected to their body.

[0040] like Figures 1-14 As shown, this embodiment of the invention provides a surge arrester testing line, including multiple testing units 31 and at least one testing fixture 2. The multiple testing units 31 are respectively used to test one of multiple electrical performance parameters of the surge arrester, and the multiple testing units 31 are arranged sequentially along the production line. The testing fixture 2 is used to support the surge arrester and can move along the production line. The testing fixture is provided with a support member for supporting the surge arrester, a high-voltage input conductive plate 221 and a low-voltage input conductive plate 222, and conductive components (including but not limited to the testing electrodes, wires, cable clamps, etc. described below) for electrical connection between the surge arrester and the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222. The testing unit 31 includes a movable testing probe 3, which includes a high-voltage contact probe and a low-voltage contact probe. The movement of the testing probe 3 causes the high-voltage contact probe and the low-voltage contact probe to contact or detach from the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222, respectively.

[0041] The detection unit 31 also includes a motion drive component and a detection module. The motion drive component is used to drive the detection probe 3 to move.

[0042] Multiple testing modules are various testing devices, each used to test different electrical performance characteristics of the surge arrester. One end of the testing probe 3 is connected to the output terminal of the testing device, while the other end is a free end. The testing probe 3 can be electrically connected to or disconnected from the testing fixture 2 under the drive of the moving drive mechanism.

[0043] A surge arrester is placed on the testing fixture 2. When the testing fixture 2 is conveyed to one of the testing units 31 via the assembly line, the testing probe 3 is moved to electrically connect with the surge arrester, allowing the testing unit 31 to perform corresponding electrical performance tests on the surge arrester. After the test is completed, the testing probe 3 is moved again to disconnect from the surge arrester. Using this method, the testing fixture 2, containing the surge arrester, is sequentially conveyed to each testing unit 31 via the assembly line, enabling the testing of multiple electrical performance parameters. By arranging each testing unit 31 along the assembly line and sequentially electrically connecting or disconnecting the testing probes 3 of each testing unit 31 with the surge arrester, continuous testing of multiple electrical performance parameters can be achieved, thereby improving the testing efficiency of the surge arrester. Furthermore, the testing fixture 2 is equipped with a high-voltage input conductive plate 221 and a low-voltage input conductive plate 222 for electrical connection with the testing probe 3. Because the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222 have relatively large contact surfaces, the testing probe 3 makes point-to-surface contact with the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222, which greatly improves the convenience and accuracy of the electrical connection between the testing probe 3 and the surge arrester. This is especially beneficial for scenarios where electrical testing is automatically performed using testing machines (such as testing unit 31).

[0044] In some embodiments of the present invention, the multiple detection modules include at least two of the following: a power frequency test module, a partial discharge detection module, a residual voltage detection module, a DC detection module, and a discharge module. The power frequency test module, partial discharge detection module, residual voltage detection module, DC detection module, and discharge module are respectively used to detect the power frequency reference voltage, partial discharge, residual voltage impulse, DC reference voltage, and leakage current of the surge arrester, and to discharge the surge arrester after testing. In a specific example, the power frequency test module, partial discharge detection module, residual voltage detection module, DC detection module, and discharge module are arranged sequentially along the conveyor belt direction.

[0045] In some embodiments of the present invention, the above-mentioned detection module may specifically be a power frequency test transformer, a partial discharge detector, an impulse voltage generator, an integrated DC high voltage power supply, and a discharge grounding device.

[0046] In some embodiments of the present invention, the detection unit 31 further includes leads 33, and the detection probes 3 are electrically connected to the corresponding detection modules via the leads 33. Optionally, the leads 33 are high-voltage copper busbars.

[0047] In some embodiments of the present invention, the motion drive assembly includes a motion cylinder 34 and a connecting bracket 35. The detection probe 3 is disposed on the connecting bracket 35, and the motion cylinder 34 drives the connecting bracket 35 to move, thereby moving the detection probe 3. Optionally, the connecting bracket 35 is a connecting plate.

[0048] In other embodiments of the invention, the motion drive assembly includes a motion motor 36, a lead screw 37, and a nut slider 38. A detection probe 3 is disposed on the nut slider 38. The motion motor 36 drives the lead screw 37 to rotate, and the nut slider 38 is configured to slide along the lead screw 37, thereby moving the detection probe 3.

[0049] In some embodiments of the present invention, the detection unit 31 further includes a protective cover 32, which covers the production line at the detection unit 31 to form a relatively enclosed detection space and improve safety. Optionally, each detection unit 31 is provided with a corresponding protective cover 32.

[0050] In some embodiments of the present invention, the testing fixture 2 includes a support member for supporting the surge arrester and a high-voltage input conductive plate 221 and a low-voltage input conductive plate 222 for electrically connecting the surge arrester and the testing probe 3. The testing probe 3 includes a high-voltage contact probe and a low-voltage contact probe, which are respectively connected to the high-voltage output terminal and the low-voltage output terminal of the corresponding testing module. The testing probe 3 moves to contact the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222, thereby realizing the electrical connection between the surge arrester and the testing probe 3. The testing fixture 2 is also provided with testing electrodes for electrically connecting the surge arrester with the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222.

[0051] In some embodiments of the present invention, the testing fixture includes a first testing bracket 211, a second testing bracket 212 (i.e., the support member described above), a high-voltage input conductive sheet 221, a low-voltage input conductive sheet 222, a first high-voltage end testing electrode 231, a low-voltage end testing electrode 232, and a second high-voltage end testing electrode 233. The first testing bracket 211 and the second testing bracket 212 are arranged opposite to each other. The first testing bracket 211 and the second testing bracket 212 are used to support the two ends of the surge arrester, respectively. The distance between the first testing bracket 211 and the second testing bracket 212 is adjustable. The first high-voltage end testing electrode 231 and the low-voltage end testing electrode 232 are respectively disposed on the first testing bracket 211 and the second testing bracket 212. The second high-voltage end testing electrode 233 is located below the horizontal line connecting the first high-voltage end testing electrode 231 and the low-voltage end testing electrode 232. The high-voltage input conductive sheet 221 is located on one side of the first testing bracket 211, and the low-voltage input conductive sheet 222 is located on one side of the second testing bracket 212. The high-voltage input conductive sheet 221 is also equipped with a cable clamp.

[0052] When testing a surge arrester, if it is a standard surge arrester, its two ends are supported on the first high-voltage end detection electrode 231 and the low-voltage end detection electrode 232, respectively. Then, the first high-voltage end detection electrode 231 is electrically connected to the high-voltage input conductive plate 221 via a wire, and the low-voltage end detection electrode 232 is electrically connected to the low-voltage input conductive plate 222 via a wire, thus forming the surge arrester testing circuit. If the surge arrester is a gapped surge arrester, its two ends are supported on the first high-voltage end detection electrode 231 and the low-voltage end detection electrode 232, respectively. The high-voltage electrode rod 291 of the surge arrester abuts against the second high-voltage end detection electrode 233. Then, the low-voltage end detection electrode 232 is electrically connected to the low-voltage input conductive plate 222 via a wire, and the second high-voltage end detection electrode 233 is electrically connected to the high-voltage input conductive plate 221 via a wire, thus forming the surge arrester testing circuit. In this case, the first high-voltage end detection electrode 231 is not connected to the testing circuit. If the surge arrester is a cable-operated surge arrester, its two ends are supported on the first high-voltage end detection electrode 231 and the low-voltage end detection electrode 232, respectively. Then, the low-voltage end detection electrode 232 is electrically connected to the low-voltage input conductive plate 222 through a wire, and the surge arrester's cable is electrically connected to the high-voltage input conductive plate 221 through a cable clamp, thus forming the surge arrester detection circuit. Finally, the high-voltage input conductive plate 221 and the low-voltage input conductive plate 222 are electrically connected to each detection unit 31 through the detection probe 3 to realize the detection of various electrical performance of the surge arrester.

[0053] The testing fixture provided in this embodiment of the invention integrates a high-voltage input conductive plate 221, a low-voltage input conductive plate 222, a first high-voltage end detection electrode 231, a low-voltage end detection electrode 232, a second high-voltage end detection electrode 233, and a cable clamp. By changing the electrical connection methods between these electrical components and with the surge arrester, it can be applied to the testing of ordinary surge arresters, surge arresters with gaps, and surge arresters with cables. Furthermore, the spacing between the first testing bracket 211 and the second testing bracket 212 is adjustable, making it suitable for testing surge arresters of different specifications and types. In summary, this testing fixture has a wide range of applications in the field of surge arrester testing.

[0054] In some embodiments of the present invention, a first support groove is provided on the top of the first detection bracket 211, and a first high-voltage end detection electrode 231 is located in the first support groove. The first high-voltage end detection electrode 231 is connected to a first terminal 241, which extends outward from one side of the first detection bracket 211. The first terminal 241 is used for electrical connection with the high-voltage input conductive sheet 221.

[0055] By setting the first terminal 241 and extending the first terminal 241 outward from one side of the first detection bracket 211, it is convenient to achieve electrical connection between the first high-voltage end detection electrode 231 and the high-voltage input conductive sheet 221.

[0056] In some embodiments of the present invention, the first support groove is a through groove with a receiving groove at its bottom perpendicular to the through groove direction. A first arc-shaped groove 213 and a second arc-shaped groove 214 are respectively provided on both sides of the receiving groove. The first high-voltage end detection electrode 231 is accommodated in the receiving groove and has a central recess 215 communicating with the first arc-shaped groove 213 and the second arc-shaped groove 214. Another through groove 216 is provided on the side wall of the first support groove near the high-voltage input conductive sheet 221. The first terminal 241 is disposed in this other through groove 216 and is detachably connected to the first high-voltage end detection electrode 231, for example, by plugging in. This design effectively achieves a good fit between the shape of the first support groove and the end of the supported surge arrester, ensuring not only stable support for the surge arrester but also making the electrical connection between the surge arrester and the first high-voltage end detection electrode 231 very simple and reliable.

[0057] In some embodiments of the present invention, a second support groove is provided on the top of the second detection bracket 212, and the low-voltage end detection electrode 232 is located in the second support groove. The low-voltage end detection electrode 232 is connected to a second terminal 242, which extends outward from one side of the second detection bracket 212. The second terminal 242 is used for electrical connection with the low-voltage input conductive sheet 222.

[0058] By setting a second terminal 242 and extending the second terminal 242 outward from one side of the second detection bracket 212, it is convenient to achieve electrical connection between the low-voltage end detection electrode 232 and the low-voltage input conductive sheet 222.

[0059] In some embodiments of the present invention, the second support groove is a blind groove with a recessed groove 217 at the bottom. The low-voltage end detection electrode 232 has horizontal portions on both sides and a recessed portion in the middle. The recessed portion is located in the recessed groove 217. The side wall of the second support groove near the low-voltage input conductive sheet 222 is provided with a through hole for the second terminal 242 to pass through. This part of the design well realizes the shape adaptation of the second support groove to the end of the supported surge arrester, which not only ensures the stable support of the surge arrester, but also makes the electrical connection between the surge arrester and the low-voltage end detection electrode 232 very simple and reliable.

[0060] In some embodiments of the present invention, the testing fixture further includes a first support 223 and a second support 224, with a high-voltage input conductive sheet 221 mounted on the first support 223 and a low-voltage input conductive sheet 222 mounted on the second support 224.

[0061] In some embodiments of the present invention, the testing fixture includes an elastic support structure 25 for supporting the second high-voltage end testing electrode 233, for adapting to a surge arrester with a gap that has a high-voltage electrode rod 291 of different lengths.

[0062] In some embodiments of the present invention, the elastic support structure 25 includes an upper pressure plate 251, a lower pressure plate 252, a guide rod 253, and a return spring 254. The lower pressure plate 252 is fixedly disposed, and the second high-voltage end detection electrode 233 is fixedly connected to the upper pressure plate 251. One end of the guide rod 253 is fixed to one of the upper pressure plate 251 and the lower pressure plate 252, and the other end of the guide rod 253 passes through the other of the upper pressure plate 251 and the lower pressure plate 252. The return spring 254 is sleeved on the guide rod 253 and supported between the upper pressure plate 251 and the lower pressure plate 252.

[0063] Taking an example where one end of the guide rod 253 is fixed to the upper pressure plate 251, and the other end of the guide rod 253 passes through the lower pressure plate 252, the following explanation is provided. When the high-voltage electrode rod of the gap-type surge arrester is placed on the second high-voltage end detection electrode 233, under the weight of the gap-type surge arrester itself, the second high-voltage end detection electrode 233 will press the upper pressure plate 251 down along the guide rod 253 to provide extension space for the high-voltage electrode rod. At the same time, the guide rod 253 will also move down, and the return spring 254 will be compressed between the upper pressure plate 251 and the lower pressure plate 252. When the gap-type surge arrester is removed from the detection fixture, the second high-voltage end detection electrode 233 will return to its initial position under the action of the return spring 254.

[0064] In some embodiments of the present invention, the detection fixture includes two support platforms arranged opposite to each other. Two lower pressure plates 252 are included, each lower pressure plate 252 including an upper horizontal segment and a lower horizontal segment that are staggered vertically, connected by an intermediate segment. The two upper horizontal segments are respectively fixed to the two support platforms. An upper pressure plate 251 includes two upper horizontal segments and one lower horizontal segment located on the same horizontal plane. The two upper horizontal segments located on the same horizontal plane are respectively connected to the lower horizontal segment through an intermediate segment. Two return springs 254 are included, each supported between the upper horizontal segments of the two upper pressure plates 251 and the lower horizontal segments of the two lower pressure plates 252. A second high-voltage end detection electrode 233 is located between the two support platforms and is fixedly connected to the lower horizontal segment of the upper pressure plate 251.

[0065] In some embodiments of the present invention, two support platforms are disposed on the first detection bracket 211 or the second detection bracket 212.

[0066] In some embodiments of the present invention, the second high-voltage end detection electrode 233 is a spherical groove contact electrode. Since the bottom end of the high-voltage electrode rod 291 of the gap arrester is spherical, it facilitates the positioning and connection of the high-voltage electrode rod of the gap arrester with the second high-voltage end detection electrode 233 when the gap arrester is placed on the first detection bracket 211 and the second detection bracket 212.

[0067] In some embodiments of the present invention, when the second high-voltage end detection electrode 233 is connected to the high-voltage input electrode wire, the wire is fixedly connected to the second high-voltage end detection electrode 233 through the wire clamping terminal.

[0068] In some embodiments of the present invention, a clearance space 293 is provided on the first detection bracket 211. When the gapped surge arrester is supported on the first detection bracket 211 and the second detection bracket 212, the high-voltage electrode rod 291 of the gapped surge arrester is placed on the second high-voltage end detection electrode 233, and the discharge gap rod 292 of the gapped surge arrester is located in the clearance space 293.

[0069] In some embodiments of the present invention, the cable clamp includes a quick clamp 26, which includes a handle 261, a linkage mechanism 262 and a pressure bar 263 connected in sequence.

[0070] When it is necessary to connect the cable with the surge arrester to the high-voltage input conductive plate 221 using the cable clamp, the handle 261 is turned, and the lever 263 is raised through the linkage mechanism 262. Then, the cable with the surge arrester is placed under the lever 263. Then, the handle 261 is turned in the opposite direction, and the lever 263 is driven down through the linkage mechanism 262 until the end of the cable makes reliable contact with the high-voltage input conductive plate 221, thereby realizing the connection between the cable with the surge arrester and the high-voltage input conductive plate 221.

[0071] In some embodiments of the present invention, the pressure rod 263 includes an insulating post 2631 and a clamping head 2632 disposed at the bottom of the insulating post 2631. The clamping head 2632 is made of conductive material and is used to clamp the cable with the cable arrester onto the high-voltage input conductive plate 221.

[0072] In some embodiments of the present invention, the high-voltage input conductive sheet 221 and the low-voltage input conductive sheet 222 are respectively connected to a third terminal 243 and a fourth terminal 244. The third terminal 243 is used for electrical connection to the first high-voltage end detection electrode 231 or the second high-voltage end detection electrode 233. The fourth terminal 244 is used for electrical connection to the low-voltage end detection electrode 232. Further, the third terminal 243 is used for connection to the first terminal 241 or the crimp terminal, and the fourth terminal 244 is used for connection to the second terminal 242.

[0073] By setting the first terminal 241, the second terminal 242, the third terminal 243, the fourth terminal 244, and the wire clamping terminal, the electrical connection between the first high-voltage end detection electrode 231, the low-voltage end detection electrode 232, the second high-voltage end detection electrode 233, the high-voltage input conductive plate 221, and the low-voltage input conductive plate 222 is facilitated.

[0074] In some embodiments of the present invention, at least one of the first detection bracket 211 and the second detection bracket 212 is disposed on the adjusting slide rail 271. By disposing of the adjusting slide rail 271, the first detection bracket 211 and the second detection bracket 212 can be slid, thereby adjusting the distance between the first detection bracket 211 and the second detection bracket 212.

[0075] In some embodiments of the present invention, at least one of the first detection bracket 211 and the second detection bracket 212 is provided with a sliding groove 272, and at least one of the first detection bracket 211 and the second detection bracket 212 slides with the adjusting slide rail 271 through the sliding groove 272 to achieve adjustable spacing.

[0076] In some embodiments of the present invention, the testing fixture further includes a base 27, and a first testing bracket 211, a second testing bracket 212, a high-voltage input conductive sheet 221 and a low-voltage input conductive sheet 222 are all disposed on the base 27.

[0077] In some embodiments of the present invention, the testing fixture further includes a base 27, an adjusting slide rail 271 disposed on the base 27, and a positioning plate 273 disposed on at least one of the first testing bracket 211 and the second testing bracket 212, the positioning plate 273 having an elongated hole 274. Multiple threaded holes are formed along the adjusting slide rail 271 on the base 27, and a limiting bolt 275 passes through the elongated hole 274. Through the cooperation of the limiting bolt 275 and the threaded hole, at least one of the first testing bracket 211 and the second testing bracket 212 is fixed when it slides to a specific position on the adjusting slide rail 271.

[0078] In some embodiments of the present invention, a leveling component is provided on the base 27. The leveling component includes leveling feet provided at the four corners of the base 27 to achieve horizontal leveling of the base 27.

[0079] In some embodiments of the present invention, anti-collision limiting blocks 23 are respectively provided at both ends of the detection fixture 2 along the moving direction. Specifically, the anti-collision limiting blocks 23 are provided on the base 27. During the movement of the detection fixture 2, the anti-collision limiting blocks 23 can prevent the detection fixture 2 from directly colliding with the outside world, such as with the detection fixtures 2 in front and behind, thereby reducing collision damage to the detection fixture 2 itself.

[0080] In some embodiments of the present invention, the testing fixture 2 is provided with a plurality of auxiliary guide wheels 24, which are respectively disposed on both sides of the testing fixture 2 to assist the testing fixture 2 in being conveyed along the assembly line. Specifically, the plurality of auxiliary guide wheels 24 are disposed on the base 27.

[0081] When the inspection fixture 2 moves on the production line, its two sides may come into contact with the side wall of the production line, resulting in sliding friction. By setting the auxiliary guide wheel 24, the sliding friction between the inspection fixture 2 and the side wall of the production line is changed into rolling friction, thus reducing the friction force.

[0082] In some embodiments of the present invention, a stop unit 4 is provided on the production line, and the stop unit 4 is used for the stop detection fixture 2.

[0083] In some embodiments of the present invention, the stop unit 4 includes a stop drive assembly and a stop member, wherein the stop drive assembly is used to drive the stop member to move.

[0084] In some embodiments of the present invention, the stop drive assembly includes a stop cylinder 41, a connecting frame 42, and a hinge seat 43. A stop member is disposed at one end of the connecting frame 42, and the other end of the connecting frame 42 is hinged to the hinge seat 43. The stop cylinder 41 is used to drive the stop member to rotate via the connecting frame 42, so as to switch it between a stop position and a non-stop position.

[0085] When the inspection fixture 2 moves to the stop position 4, the stop cylinder 41 drives the blocking component to rotate to a position higher than the bottom of the inspection fixture 2, so that the blocking component can prevent the inspection fixture 2 from moving further, thereby achieving the stop function.

[0086] In some embodiments of the present invention, one end of the connecting frame 42 includes a roller bracket, and the blocking element consists of two stopping rollers 44 mounted on the roller bracket. Specifically, at least a portion of the production line includes two parallel guide rails. The two sides of the inspection fixture 2 travel along the guide rails, and the stopping unit is installed between the two guide rails. The stopping rollers 44 can switch between a stopping position and a non-stopping position. When the inspection fixture 2 needs to be stopped, the stopping rollers 44 are driven by the stopping drive to rotate around the hinge point to a position higher than the bottom of the inspection fixture 2, that is, extending upward from between the two guide rails to reach the stopping position. The stopping rollers 44 can then prevent the inspection fixture 2 from continuing to move, thus achieving the stopping function. When the inspection fixture 2 needs to continue moving, the stopping drive is driven by the stopping drive to rotate around the hinge point to a position where the stopping rollers 44 are flush with the bottom of the inspection fixture 2. The inspection fixture 2 can then be conveyed through rolling friction with the stopping rollers 44. At this time, the stopping rollers 44 serve to assist in the conveying of the inspection fixture 2.

[0087] In some embodiments of the present invention, the stop unit 4 further includes a sensor that senses and detects the position of the tooling 2 for controlling the action of the stop unit 4.

[0088] In some embodiments of the present invention, the sensing element includes a sensing sensor 45 and a mounting bracket 46, wherein the sensing sensor 45 is disposed on the mounting bracket 46.

[0089] In some embodiments of the present invention, a clamping unit 5 is also provided on the production line, which is used to clamp the surge arrester onto or remove it from the testing fixture 2.

[0090] In some embodiments of the present invention, the clamping unit 5 includes a clamping drive assembly and a clamping member. The clamping member is used to clamp and fix the surge arrester, and the clamping drive assembly is used to drive the clamping member to move. The clamping unit 5 also includes a robotic arm, and the clamping drive assembly is connected to the robotic arm. The angle and position of the clamping member are adjusted by the cooperation between the robotic arm and the clamping drive assembly to facilitate the clamping and releasing of the surge arrester.

[0091] In some embodiments of the present invention, the clamping member includes a first clamping member 511 and a second clamping member 512 disposed opposite to each other. The first clamping member 511 and the second clamping member 512 are arranged in a ring-shaped structure. The clamping drive assembly is used to drive the first clamping member 511 and the second clamping member 512 to close or open, so as to achieve the clamping or releasing of the surge arrester.

[0092] In some embodiments of the present invention, the gripping drive assembly includes a gripping cylinder 52, a second gripper 512 fixedly disposed relative to the gripping cylinder 52, and a first gripper 511 fixedly connected to the output end of the gripping cylinder 52 so that when the output end of the gripping cylinder 52 moves, the first gripper 511 and the second gripper 512 are driven to close or open, and the gripping drive assembly is connected to the robotic arm.

[0093] In some embodiments of the present invention, the clamping unit 5 further includes a movable slide rail 53, and two clamping drive components and clamping members are slidably connected to the movable slide rail 53 to adjust the distance between the two clamping members. Specifically, this can be achieved by connecting the clamping member to a slider in the slide groove of the movable slide rail 53 using a connecting plate or connecting bracket, or other conventional methods, which will not be elaborated here. In addition, an anti-collision limiting component 51 can be provided on the movable slide rail 53 to prevent the surge arrester from colliding with the movable slide rail 53 and being damaged.

[0094] In some embodiments of the present invention, a barcode scanning unit 6 is also provided on the production line. The barcode scanning unit 6 is used to identify the testing fixture 2 and the surge arrester. Specifically, the nameplates on the testing fixture 2 and the surge arrester are scanned and identified to obtain relevant information about the testing fixture 2 and the surge arrester.

[0095] Furthermore, the scanning unit 6 can be an automatic scanner or a manual scanner.

[0096] In some embodiments of the present invention, a start-stop control unit is also provided on the production line. The start-stop control unit is used to control the start and stop of the production line so that the testing fixture stays at the clamping unit, thereby facilitating the placement of the surge arrester on the testing fixture or the removal of the surge arrester from the testing fixture.

[0097] In some embodiments of the present invention, the start / stop control unit includes a delay switch, which stops the operation of the production line after a preset delay following triggering.

[0098] In some embodiments of the present invention, the assembly line includes a first high-speed conveyor belt 17, a second high-speed conveyor belt 19, a first arc-shaped roller conveyor 16, and a second arc-shaped roller conveyor 18. The first high-speed conveyor belt 17 and the second high-speed conveyor belt 19 are arranged in parallel. The first arc-shaped roller conveyor 16 and the second arc-shaped roller conveyor 18 are respectively spliced ​​to the two ends of the first high-speed conveyor belt 17 and the second high-speed conveyor belt 19.

[0099] In some embodiments of the present invention, the start-stop control unit can independently control the start and stop of the first double-speed conveyor belt 17, the second double-speed conveyor belt 19, the first arc-shaped roller line 16, and the second arc-shaped roller line 18.

[0100] In some embodiments of the present invention, the production line further includes a detection control console 7, which is electrically connected to the detection unit 31, the stop unit 4, the gripping unit 5, the barcode scanning unit 6, and the start / stop control unit to control the operation of the stop unit 4, the gripping unit 5, the barcode scanning unit 6, and the start / stop control unit, and to store all data information involved in the detection process.

[0101] In some embodiments of the present invention, the production line also includes a safety enclosure 8, and the above-mentioned detection module and detection control console 7 are both set inside the safety enclosure 8 to ensure that the detection process is isolated from the outside world and to ensure the safety of outside personnel.

[0102] In some embodiments of the present invention, the production line includes a loading area 11, a unloading area 12, a detection area 13, a waiting area 14, and a barcode scanning area 15.

[0103] In some embodiments of the present invention, the feeding area 11 is disposed on the first arc-shaped roller conveyor 16, the detection area 13 is disposed on the first double-speed conveyor belt 17, the unloading area 12 is disposed on the second arc-shaped roller conveyor 18, and the waiting area 14 and the scanning area 15 are disposed on the second double-speed conveyor belt 19.

[0104] In some embodiments of the present invention, multiple detection units 31 are sequentially arranged in the detection area 13. Multiple stop units 4 are provided, respectively located at the entrance of the waiting area, the exit of the waiting area, the scanning position of the scanning area, the entrance of the unloading area, and at each detection unit 31. Multiple scanning units 6 are provided, respectively located in the scanning area 15, the loading area 11, and at each detection unit 31. Multiple gripping units 5 are provided, respectively located in the loading area 11 and the unloading area 12. Multiple delay switches are provided, respectively located at the entrance of the loading area and the entrance of the unloading area.

[0105] The stop unit 4 at the entrance of the waiting area is used to stop the inspection fixture 2 in the unloading area 12. The stop unit 4 at the exit of the waiting area is used to stop the inspection fixture 2 in the waiting area 14. The stop unit 4 at the barcode scanning position of the barcode scanning area 15 is used to stop the inspection fixture 2 at the barcode scanning position of the barcode scanning area 15. The stop unit 4 at the entrance of the unloading area is used to stop the completed surge arrester and the corresponding inspection fixture 2 in the inspection area 13. The stop unit 4 at each inspection unit 31 is used to stop the inspection fixture 2 at each inspection unit 31. The barcode scanning unit 6 in the barcode scanning area 15 is used to identify the empty inspection fixture 2, the barcode scanning unit 6 in the loading area 11 is used to identify the surge arrester in the loading area 11, and the barcode scanning unit 6 at each inspection unit 31 is used to re-identify the inspection fixture 2 before the inspection unit 31 starts working. The clamping unit 5 in the loading area 11 is used to clamp the surge arrester onto the testing fixture 2 that is conveyed to the loading area 11. The clamping unit 5 in the unloading area 12 is used to clamp the surge arrester that has completed testing and is conveyed to the unloading area 12 from the testing fixture 2. The time delay switch at the entrance of the loading area and the time delay switch at the entrance of the unloading area are used to precisely stop the testing fixture 2 at the clamping unit in the loading area 11 and the clamping unit in the unloading area 12, respectively.

[0106] In some embodiments of the present invention, the scanning unit 6 in the scanning area 15 and the scanning unit 6 at each detection unit 31 are automatic scanners, while the scanning unit 6 in the loading area 11 is a manual scanner. Since the nameplate on the detection fixture 2 is convenient for automatic scanning, while the nameplate on the surge arrester is not, the scanning unit 6 for scanning the nameplate on the surge arrester is set as a manual scanner, which is manually scanned and identified by the operator in the loading area 11.

[0107] The following is an exemplary description of the operation process of the surge arrester testing line provided in this embodiment of the invention: When multiple electrical performance tests are required on the surge arrester, the testing fixture 2 enters the scanning area 15 from the unloading area 12 via the waiting area 14. When the empty testing fixture 2 is transported to the scanning position of the scanning area 15, the stop unit 4 of the scanning position of the scanning area 15 detects the testing fixture 2 and feeds a signal back to the testing control console 7. The testing control console 7 controls the stop unit 4 of the scanning position of the scanning area 15 to move, so as to accurately stop the testing fixture 2 at the scanning position of the scanning area 15. Then, the scanning unit 6 of the scanning area 15 is used to identify the nameplate on the empty testing fixture 2 and store the scanning result in the testing control console 7. By setting the stop unit 4 at the scanning position of the scanning area 15, the subsequent scanning unit 6 can complete accurate scanning. After scanning is completed, the detection control console 7 controls the stop unit 4 of the scanning position in the scanning area 15 to continue conveying the empty detection fixture 2 to the loading area 11. When the empty detection fixture 2 is conveyed to the delay switch position at the entrance of the loading area, the delay switch controls the first arc-shaped roller conveyor 16 to stop after a preset time, thereby accurately stopping the empty detection fixture 2 at the clamping unit 5 of the loading area 11. Then, the clamping unit 5 of the loading area 11 is used to place the surge arrester on the detection fixture 2. By setting a delay switch at the entrance of the loading area, the detection fixture 2 is stopped at the same position in the loading area 11, which facilitates the subsequent clamping unit 5 of the loading area 11 to accurately place the surge arrester on the detection fixture 2. Afterwards, the scanning unit 6 of the loading area 11 is used to identify the nameplate on the surge arrester and transmits the scanning result to the detection control console 7, which is then associated with and stored with the previously stored nameplate scanning result on the detection fixture 2. Then, the detection control console 7 controls the first arc-shaped roller conveyor 16 to start, continuing to transport the detection fixture 2 to the detection area 13. When the detection fixture 2 is transported to each detection unit 31, the stop unit 4 at each detection unit 31 detects the detection fixture 2 and sends a signal back to the detection control console 7. The detection control console 7 then controls the stop unit 4 at each detection unit 31 to stop the detection fixture 2 precisely at each detection unit 31. Then, the scanning unit 6 at each detection unit 31 scans the nameplate on the detection fixture 2 again and transmits the scan result to the detection control console 7. Next, the scan result of the scanning unit 6 at each detection unit 31 is compared with the previously stored scan result of the nameplate on the detection fixture 2. The detection results of each detection unit 31 are associated and stored with the detection fixture 2 and the corresponding surge arrester that have the same comparison result, so as to realize the correspondence between the detection result and the surge arrester, which is convenient for subsequent viewing. Before each detection unit 31 performs its tests, it is necessary to determine whether there are any associated nameplate scan results stored in the detection console 7. If not, it indicates that the detection fixture 2 may be entering each detection unit 31 unloaded. In this case, each detection unit 31 will not operate to prevent damage to the detection fixture 2 and the detection unit 31.Finally, the tested surge arresters, along with the testing fixture 2, are conveyed to the unloading area 12. A time-delay switch at the entrance of the unloading area stops the second arc-shaped roller conveyor 18 after a preset time, precisely positioning the testing fixture 2 at the gripping unit 5 in the unloading area 12. The gripping unit 5 then uses the unloading area 12 to remove the tested surge arresters from the testing fixture 2. By setting a time-delay switch at the entrance of the unloading area, the testing fixture 2 and the tested surge arresters are positioned at the same location in the unloading area 12, facilitating precise removal of the surge arresters from the testing fixture 2 by the gripping unit 5 in the unloading area 12. Additionally, if the detection control console 7 detects that the stop unit 4 at the scanning position of the scanning area 15 is still not open, and if the stop unit 4 at the entrance of the waiting area detects that a predetermined number of detection fixtures 2 have been conveyed into the waiting area 14, and the stop unit 4 at the exit of the waiting area detects that a detection fixture 2 has arrived, then the detection control console 7 controls the stop unit 4 at the exit of the waiting area to activate, stopping the detection fixture 2 in the waiting area 14 to prevent the detection fixtures 2 from being squeezed and stacked in the scanning area 15. Simultaneously, the stop unit 4 at the entrance of the waiting area also activates when it detects that a detection fixture 2 has arrived, stopping the detection fixture 2 in the unloading area to prevent the detection fixture 2 from continuing to be conveyed into the waiting area 14, causing the detection fixtures 2 in the waiting area 14 to be squeezed and stacked. Similarly, the stop unit 4 at the entrance of the unloading area also activates, stopping the detection fixture 2 in the detection area 13 to prevent the detection fixture 2 from continuing to be conveyed into the unloading area 12, causing the detection fixtures 2 in the unloading area 12 to be squeezed and stacked.

[0108] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A surge arrester testing production line, characterized in that, It includes multiple detection units (31) and at least one detection fixture (2). The multiple detection units (31) are used to test one of the multiple electrical performances of the surge arrester. The multiple detection units (31) are arranged sequentially along the production line. The detection fixture (2) is used to support the surge arrester and can move along the production line. The testing fixture (2) is provided with a support for supporting the surge arrester, a high-voltage input conductive sheet (221) and a low-voltage input conductive sheet (222), as well as a conductive part for electrically connecting the surge arrester with the high-voltage input conductive sheet (221) and the low-voltage input conductive sheet (222); The detection unit (31) includes a movable detection probe (3), which includes a high-voltage contact probe and a low-voltage contact probe. The movement of the detection probe (3) causes the high-voltage contact probe and the low-voltage contact probe to contact or detach from the high-voltage input conductive sheet (221) and the low-voltage input conductive sheet (222), respectively.

2. The surge arrester testing production line according to claim 1, characterized in that, The detection unit (31) includes a motion driving component, which is used to drive the detection probe (3) to move; wherein, The moving drive assembly includes a moving cylinder (34) and a connecting bracket (35). The detection probe (3) is disposed on the connecting bracket (35), and the moving cylinder (34) is used to drive the connecting bracket (35) to move; or, The moving drive assembly includes a moving motor (36), a lead screw (37), and a nut slider (38). The moving motor (36) is used to drive the lead screw (37) to rotate. The nut slider (38) is configured to slide along the lead screw (37). The detection probe (3) is disposed on the nut slider (38).

3. The surge arrester testing production line according to claim 1, characterized in that, The production line is equipped with a stop unit (4), which is used to stop the detection tool (2). The stop unit (4) includes a stop drive assembly and a stop member. The stop drive assembly includes a stop cylinder (41), a connecting frame (42), and a hinge seat (43). The stop member is disposed at one end of the connecting frame (42), and the other end of the connecting frame (42) is hinged to the hinge seat (43). The stop cylinder (41) is connected to the connecting frame (42) to drive the connecting frame (42) to rotate around the hinge point, so that the stop member switches between the stop position and the non-stop position.

4. The surge arrester testing production line according to claim 3, characterized in that, One end of the connecting frame (42) includes a roller bracket, and the blocking element consists of two stop rollers (44) mounted on the roller bracket.

5. The surge arrester testing production line according to claim 1, characterized in that, The production line is also provided with a clamping unit (5), which is used to clamp the surge arrester onto the testing fixture (2) or to clamp it off from the testing fixture (2); The gripping unit (5) includes a robotic arm, a gripping drive assembly, and a gripping member. The gripping member includes a first gripping member (511) and a second gripping member (512) arranged opposite to each other for gripping a surge arrester. The gripping drive assembly includes a gripping cylinder (52). The second gripping member (512) is fixedly arranged relative to the gripping cylinder (52). The output end of the gripping cylinder (52) is fixedly connected to the first gripping member (511) to drive the first gripping member (511) and the second gripping member (512) to close or open. The gripping drive assembly is connected to the robotic arm.

6. The surge arrester testing production line according to claim 5, characterized in that, The clamping unit (5) further includes a movable slide rail (53). There are two clamping drive components and two clamping members, which are slidably connected to the movable slide rail (53). The movable slide rail (53) is provided with anti-collision limiting members (51).

7. The surge arrester testing production line according to claim 1, characterized in that, The assembly line includes a first double-speed conveyor belt (17), a second double-speed conveyor belt (19), a first arc-shaped roller line (16), and a second arc-shaped roller line (18). The first double-speed conveyor belt (17) and the second double-speed conveyor belt (19) are arranged in parallel, and the first arc-shaped roller line (16) and the second arc-shaped roller line (18) are respectively spliced ​​at both ends of the first double-speed conveyor belt (17) and the second double-speed conveyor belt (19).

8. The surge arrester testing production line according to claim 1, characterized in that, The detection fixture (2) is provided with anti-collision limit blocks (23) at both ends along the moving direction.

9. The surge arrester testing production line according to claim 1, characterized in that, The testing fixture (2) is provided with a plurality of auxiliary guide wheels (24), which are respectively arranged on both sides of the testing fixture (2) to assist the testing fixture (2) in being transported along the assembly line.

10. The surge arrester testing production line according to any one of claims 1-9, characterized in that, The plurality of detection units (31) include at least two of the following: power frequency test module, partial discharge detection module, residual voltage detection module, DC detection module, and discharge module.

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