Performance testing device for circuit breaker and frame circuit breaker

Abstract

The invention belongs to the technical field of circuit breaker performance testing, and particularly relates to a performance testing device for a circuit breaker and a frame circuit breaker, the performance testing device comprises a detection station, a conveying mechanism is arranged in the detection station, the frame circuit breaker is placed at the top of the conveying mechanism, and a centering mechanism is arranged at the top of the conveying mechanism. According to the invention, a fixed detection station is formed on the front side of the conveying mechanism through the detection table, and the conveying mechanism is matched with the transfer mechanism, so that the frame circuit breaker can move from the conveying mechanism to the fixed detection station for detection, and the frame circuit breaker in detection does not block other frame circuit breakers conveyed on the conveying mechanism; the conveying mechanism is ensured to have the conveying capacity all the time, the testing efficiency can be further improved, the conveying mechanism is matched with the transferring mechanism, the detected frame circuit breaker can be transferred to the conveying mechanism so that the detected frame circuit breaker can be conveyed to the next station, and the testing efficiency can be improved again.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker performance testing technology, and in particular to a performance testing device for circuit breakers and a frame circuit breaker. Background Technology

[0002] Circuit breakers are core devices in intelligent power distribution systems used for control and protection circuits. Common types include frame circuit breakers and molded case circuit breakers, which are widely used in industrial power distribution, building circuits, and electrical equipment safety protection scenarios. In the manufacturing of power distribution switch control equipment for intelligent power distribution systems and facilities, it is necessary to use circuit breaker performance testing equipment to perform performance tests on newly manufactured frame circuit breakers. The tests include withstand voltage testing, current characteristic testing, and mechanical wear testing, involving fault prediction and health management. Existing circuit breaker performance testing equipment is usually integrated into the continuous transport line system for mass production of circuit breakers, and its structure includes fixed testing equipment connected to the transport line. The system includes workstations, a vision alignment system, an electrical performance docking mechanism, a power supply docking mechanism, and a mechanical reciprocating mechanism. Multiple circuit breaker performance testing devices are configured along the transport route. During operation, the frame circuit breakers to be tested are manually calibrated and placed on pallets along the transport route. They are then continuously transported into each circuit breaker performance testing device. This system employs a linkage control logic between the transport line and multiple testing mechanisms. The testing system only starts synchronously after all circuit breaker performance testing devices have circuit breakers on board. The electrical performance docking mechanism connects the circuit breaker terminals to the testing circuit, and the power supply docking mechanism connects the circuit breaker terminals to the power supply, thus enabling the relevant testing to proceed.

[0003] However, the fixed testing stations of existing circuit breaker performance testing equipment are directly located on the conveyor line. In actual use, it is necessary to wait for all circuit breaker performance testing equipment to carry circuit breakers before testing can start. Circuit breakers under testing will block the conveyor line, and subsequent circuit breakers cannot be conveyed normally. This means that the testing process needs to frequently match the conveyor line's rhythm, resulting in a high proportion of idle waiting time, which greatly limits the testing efficiency. On the other hand, the inaccuracy rate of circuit breaker positions directly calibrated by humans is relatively high, and the subsequent visual alignment process is time-consuming, further extending the testing time of a single circuit breaker.

[0004] Therefore, we propose a performance testing device for circuit breakers and a frame circuit breaker. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings in the prior art, the present invention aims to provide a frame circuit breaker performance testing device that can achieve independent station testing, does not block continuous transport lines, eliminates the need for manual calibration, and quickly completes accurate positioning, thereby improving the testing efficiency of a single circuit breaker and reducing the dependence of the testing process on the transport line's delivery rhythm.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] A performance testing device for circuit breakers includes a testing station. Inside the testing station is a transport mechanism. A frame circuit breaker is placed on top of the transport mechanism. A centering mechanism is located on top of the transport mechanism to calibrate and fix the frame circuit breaker's position. A testing platform is located at the front of the transport mechanism. The top of the testing platform is a fixed workstation. A transfer mechanism is located at the front of the top of the testing platform, driving the frame circuit breaker to move between the transport mechanism and the testing platform. A crimping mechanism is located above the testing platform, connecting the frame circuit breaker to a testing circuit. A back-connection mechanism is located between the transfer mechanism and the crimping mechanism, connecting the frame circuit breaker to a power source. A reciprocating test mechanism is located in the middle of the back-connection mechanism, performing a mechanical wear test on the frame circuit breaker. An adapter mechanism is located at the bottom of the reciprocating test mechanism, driving the reciprocating test mechanism to move.

[0008] Preferably, the testing station includes an isolation shell. A controller is fixedly installed on the left side of the isolation shell at its front end. Observation windows are opened on both the left and right sides of the isolation shell, and the two observation windows are aligned with each other. The observation window on the left side of the isolation shell is located behind the controller. Fixing holes are opened on both the left and right sides of the isolation shell behind the observation windows, and the two fixing holes are aligned. A conveying mechanism is disposed through the fixing holes. The testing platform is fixedly installed on the bottom surface of the inner cavity of the isolation shell. The transfer mechanism and the back-connection mechanism are fixedly installed on the front side of the inner cavity of the isolation shell. The pressing mechanism is fixedly installed on the top surface of the inner cavity of the isolation shell. The adapter mechanism is fixedly installed between the front side of the testing platform and the front side of the inner cavity of the isolation shell.

[0009] Preferably, the conveying mechanism includes two support legs symmetrically arranged on the left and right sides of the isolation shell. A lower conveyor is fixedly installed between the two support legs at their bottom, and an upper conveyor is fixedly installed between the two support legs at their top. Both the lower and upper conveyors are segments of the conveying line. The lower and upper conveyors are inserted through two fixed through holes. A fixed base plate is fixedly connected to the bottom surface of the upper conveyor. The fixed base plate is located inside the isolation shell, and lifting cylinders are fixedly inserted at the four corners of the bottom surface of the fixed base plate. A lifting platform is fixedly connected to the top of the extension rod inside the lifting cylinder. A positioning strip located on the left side of the fixed base plate is fixedly connected to the bottom surface of the upper conveyor. A positioning cylinder is fixedly inserted into the middle of the bottom surface of the positioning strip. A limit switch is fixedly connected to the top of the extension rod inside the positioning cylinder. A transport pallet is placed on the top of the upper conveyor. A frame circuit breaker is placed on the top surface of the transport pallet. The transport pallet is compatible with the limit switch. After the limit switch moves upward under the drive of the positioning cylinder, it can stop the transport pallet. The lifting platform supports the transport pallet and moves upward under the drive of the lifting cylinder.

[0010] Preferably, the centering mechanism includes two clamping mechanisms stacked vertically without interfering with each other. One clamping mechanism is arranged along the left-right direction to calibrate and fix the deviation of the frame circuit breaker in the left-right direction, and the other clamping mechanism is arranged along the front-back direction to calibrate and fix the positional deviation of the frame circuit breaker in the front-back direction.

[0011] Preferably, the clamping mechanism includes a rectangular housing, which is fixedly connected to the edge of the top surface of the transport pallet. Two forward screws are symmetrically and movably inserted into the side of the rectangular housing facing the center of the top surface of the transport pallet. The forward screws are located at the ends of the rectangular housing. A reverse screw is fixedly connected to the end of the forward screw away from the rectangular housing. The forward screws and the reverse screws are symmetrical about the center surface of the transport pallet. The same rectangular strip is movably installed at the ends of the two reverse screws away from the forward screws. Clamping strips are threadedly installed between the two forward screws and between the two reverse screws. The two clamping strips are symmetrical about the center surface of the transport pallet. The end of the forward screw near the rectangular housing extends into the interior of the rectangular housing and is fixedly sleeved with a worm gear. An operating rod is rotatably installed between the two surfaces of the inner cavity of the rectangular housing. The operating rod is perpendicular to the forward screw. A worm gear is fixedly installed near the end of the operating rod and meshes with the worm gear. One end of the operating rod extends to the outside of the rectangular housing and is fixedly connected with a tool sleeve.

[0012] Preferably, the testing platform includes a concave plate, which is fixedly connected to the bottom surface of the inner cavity of the isolation shell. The rear side of the concave plate is fixedly connected to the front side of the upper conveyor and the lower conveyor. Two protrusions are symmetrically fixedly connected to the left and right ends of the top surface of the concave plate. The channel between the two protrusions is aligned with the stopped transport pallet. Chamfers are provided on the two sides of the two protrusions that are close to each other, located at their rear ends. A stop bar is fixedly connected to the top surface of the concave plate at its front end.

[0013] Preferably, the transfer mechanism includes a limiting strip and two transfer electric cylinders. The limiting strip is fixedly connected to the top surface of the upper conveyor and located on the rear side of the transport pallet. The front ends of the two transfer electric cylinders are fixedly installed on the front side of the inner cavity of the isolation shell. The two transfer electric cylinders are symmetrical about the center plane of the concave plate. The rear ends of the two transfer electric cylinders are fixedly connected to the same hollow flat box. The left end face of the hollow flat box is fixedly connected to a vent pipe. The vent pipe is located above the baffle strip and is connected to an external pneumatic system through a reversing valve. Five negative pressure suction cups are fixedly connected at equal intervals on the rear side of the vent pipe. The negative pressure suction cups correspond to the rectangular shell at the front end of the transport pallet.

[0014] Preferably, the pressing mechanism includes two telescopic rods, both of which are fixedly connected to the top surface of the inner cavity of the isolation shell. The bottom ends of the two telescopic rods are fixedly connected to the same positioning plate. Four guide pins are inserted at the four corners of the top surface of the positioning plate, which can move up and down. The bottom ends of the four guide pins are fixedly connected to the same buffer plate. Multiple annular airbags are stacked and sleeved on the outside of the guide pins, located between the positioning plate and the buffer plate. Multiple pressing joints are fixedly installed on the bottom surface of the buffer plate. A pressing cylinder is fixedly installed in the middle of the top surface of the positioning plate. The top end of the pressing cylinder is fixedly installed on the top surface of the inner cavity of the isolation shell.

[0015] Preferably, the back-connection mechanism includes a fixed horizontal plate, which is fixedly connected to the front side of the inner cavity of the isolation shell and located above the transfer electric cylinder. Two lifting cylinders are symmetrically fixedly installed on the top surface of the fixed horizontal plate, and the bottom ends of the two lifting cylinders are fixedly connected to the same lifting horizontal plate. Two concave tracks are symmetrically fixedly connected to the bottom surface of the lifting horizontal plate. An angle motor is fixedly installed on each of the two concave tracks on their two mutually distant surfaces. The output shaft of the angle motor extends into the concave track and is fixedly connected to a flipping block. A flipping shaft is fixedly connected to the other end face of the flipping block and is movably inserted into the other side of the concave track. An electric telescopic rod is fixedly connected to the rear side of the flipping block. A raised platform located at the rear end of the concave track is fixedly connected to the bottom surface of the inner cavity of the concave track. When the electric telescopic rod rests on the top surface of the raised platform, it is in a horizontal state. The rear ends of the two electric telescopic rods are fixedly installed with the same back-connection base plate, and four traversing rods are movably inserted into the back-connection base plate. The front end of the rod is fixedly connected to the same concave frame. The left and right sides of the inner cavity of the concave frame are provided with fixed slots. The top of the fixed slot is open. A plate is inserted into the fixed slot. Multiple rectangular sleeves are detachably installed on the plate. The rectangular sleeves are adapted to the power supply end on the rear side of the frame circuit breaker. A buffer pad is fixedly connected to the front end of the rectangular sleeve. A conductive vertical plate is provided between the upper and lower sides of the inner cavity of the rectangular sleeve. The upper and lower ends of the front side of the conductive vertical plate are fixedly connected to conductive elastic plates. The front ends of the two conductive elastic plates are fixedly connected to conductive inclined plates. The free ends of the two conductive inclined plates are in contact with each other and are inclined towards the conductive vertical plate. A docking short rail is fixedly connected to the middle of the rear side of the plate. A drive cylinder is fixedly installed in the middle of the rear side of the back-connecting base plate. A rod extends forward from the inside of the drive cylinder, passes through the back-connecting base plate, and is fixedly connected to a docking short block. The docking short block is inserted into the docking short rail and can only move up and down inside the docking short rail.

[0016] Preferably, the reciprocating test mechanism includes a mounting base, which is installed on the front side of the concave plate. A test screw located in the middle is rotatably mounted on the top surface of the mounting base. Four test slide rods are evenly distributed around the test screw. The bottom ends of the four test slide rods are fixedly connected to the top surface of the mounting base. The top ends of the four test slide rods are fixedly connected to the same test top plate. A test motor is fixedly mounted on the top surface of the test top plate. The output shaft of the test motor passes downward through the test top plate and is fixedly connected to the top end of the test screw. The four test slide rods are slidably sleeved with the same test slide plate. The test slide plate is threadedly sleeved on the outside of the test screw. A test lever arm is fixedly connected to the top surface of the test slide plate. The rear end of the test lever arm extends backward and is adapted to the operating handle on the frame circuit breaker.

[0017] Preferably, the adapter mechanism includes an adapter base plate. Right-angle members are fixedly connected to both ends of the front side of the adapter base plate. These right-angle members are bolted to the front side of the inner cavity of the isolation housing. Two adapter slide rods are symmetrically fixedly connected to the rear side of the adapter base plate. The rear ends of both adapter slide rods are fixedly connected to the front side of the concave plate via a straightening plate. Adapter sliders are slidably sleeved on the outside of each adapter slide rod. A common adapter movable plate is fixedly connected to the top surface of the two adapter sliders. Adapter wall plates are fixedly connected to both ends of the top surface of the adapter movable plate. Two adapter long rods are fixedly connected between the two adapter wall plates. The two adapter long rods are slidably inserted into the mounting base. The two adapter wall plates can be... A first adapter screw is rotatably inserted and located on the upper side of the middle position between two adapter rods. A mounting base is threadedly fitted onto the outside of the first adapter screw. The right end of the first adapter screw passes through the corresponding adapter wall plate and is fixedly connected to a first adapter motor. The first adapter motor is fixedly mounted on the corresponding adapter wall plate. A second adapter motor located in the middle is fixedly mounted on the front side of the adapter base plate. A second adapter screw is fixedly connected to the output shaft of the second adapter motor. The rear end of the second adapter screw passes through the adapter base plate and is movably fitted onto the front side of the concave plate. A drive block is threadedly fitted onto the outside of the second adapter screw. The top surface of the drive block is fixedly connected to the middle position of the bottom surface of the adapter moving plate.

[0018] Preferably, the adapter mechanism further includes a probe, which is fixedly connected to the rear side of the inner cavity of the isolation housing and points towards the space above the concave plate, with the central axis of the probe coinciding with the center plane of the concave plate.

[0019] Preferably, there are three probes, one of which points towards the concave plate, and the other two probes are symmetrically distributed on the left and right sides of this probe.

[0020] A frame circuit breaker is provided, wherein the top surface of the frame circuit breaker is provided with a terminal corresponding to and adapted to the crimp connector, the rear side of the frame circuit breaker is provided with a power supply terminal corresponding to and adapted to the rectangular bushing, the front side of the frame circuit breaker is provided with an operating handle corresponding to and adapted to the test lever arm, and the external dimensions of the frame circuit breaker are adapted to the clamping range of the centering mechanism and the fixed position of the testing table.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. This invention provides a calibration thrust to the frame circuit breaker through a centering mechanism. The calibration thrust drives the frame circuit breaker to twist and move on the transport pallet. Reversing the rotation allows the side of the frame circuit breaker with the operating handle to face forward, while moving it allows the frame circuit breaker to shift towards the center position on the transport pallet, thereby fixing the frame circuit breaker in a straight position at the center of the top surface of the transport pallet. Users only need to control the approximate orientation and position of the frame circuit breaker, and the calibration work is completed by the centering mechanism, eliminating errors caused by human operation. Subsequent use of a visual alignment system is not required, shortening the testing time of a single frame circuit breaker and helping to increase testing efficiency.

[0023] 2. This invention uses a testing platform to create a fixed testing station on the front of the transport mechanism. Through the cooperation of the transport mechanism and the transfer mechanism, the frame circuit breaker can be moved from the transport mechanism to the fixed testing station for testing. The frame circuit breaker under testing will not obstruct other frame circuit breakers being transported on the transport mechanism, ensuring that the transport mechanism always has transport capacity, which helps to further increase testing efficiency. The cooperation between the transport mechanism and the transfer mechanism can also transfer the tested frame circuit breaker to the transport mechanism so that the tested frame circuit breaker can be transported to the next station, which helps to increase testing efficiency again.

[0024] 3. This invention enables the terminals on the top of the frame circuit breaker at the fixed testing station to be connected to the test circuit via a crimping mechanism, and enables the power supply terminal on the back of the frame circuit breaker at the fixed testing station to be connected to the power supply via a back-connection mechanism. The back-connection mechanism is adaptable to changes in the position of the power supply terminal, offering good applicability. The reciprocating test mechanism performs mechanical wear tests on the operating handle of the frame circuit breaker at the fixed testing station. The cooperation between the reciprocating test mechanism and the adaptation mechanism allows for adaptation to changes in the position of the operating handle, thus adapting to different specifications and batches of frame circuit breakers, resulting in better applicability. It can meet diverse testing needs without replacing special components, significantly improving the equipment's versatility and adaptability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0027] Figure 3 For the present invention Figure 2 A three-dimensional structural diagram of the structure after the isolation shell has been removed from the Lieutenant General's enclosure;

[0028] Figure 4 For the present invention Figure 3 A schematic diagram of the three-dimensional structure viewed from below;

[0029] Figure 5 For the present invention Figure 3 A three-dimensional structural diagram of a center-to-center mechanism;

[0030] Figure 6 For the present invention Figure 5 A schematic diagram of the split structure of the China-to-China mechanism;

[0031] Figure 7 For the present invention Figure 6 A three-dimensional structural diagram of a rectangular shell viewed from below;

[0032] Figure 8 For the present invention Figure 3 A three-dimensional structural diagram of the transfer mechanism;

[0033] Figure 9 For the present invention Figure 3 A three-dimensional structural diagram of the intermediate pressure connection mechanism;

[0034] Figure 10 For the present invention Figure 3 A three-dimensional structural diagram of the back-connection mechanism;

[0035] Figure 11 For the present invention Figure 10 A three-dimensional structural diagram of the middle insert plate;

[0036] Figure 12 For the present invention Figure 11 A three-dimensional structural diagram of the rectangular sleeve;

[0037] Figure 13 For the present invention Figure 12 A three-dimensional structural diagram of the central conductive vertical plate;

[0038] Figure 14 For the present invention Figure 3 A three-dimensional structural diagram of the reciprocating test mechanism and the adapter mechanism.

[0039] In the diagram: 1. Testing station; 101. Isolation enclosure; 102. Controller; 103. Observation window; 104. Fixing perforation;

[0040] 2. Conveying mechanism; 201. Support leg; 202. Lower conveyor; 203. Upper conveyor; 204. Fixed base plate; 205. Lifting cylinder; 206. Lifting platform; 207. Positioning bar; 208. Positioning cylinder; 209. Limit switch; 210. Conveying pallet; 211. Frame circuit breaker;

[0041] 3. Centering mechanism; 301. Rectangular housing; 302. Forward screw; 303. Reverse screw; 304. Rectangular bar; 305. Clamping bar; 306. Worm gear; 307. Operating lever; 308. Tool sleeve; 309. Worm gear;

[0042] 4. Inspection table; 401. Concave plate; 402. Boss; 403. Chamfer; 404. Stop bar;

[0043] 5. Transfer mechanism; 501. Limiting strip; 502. Transfer electric cylinder; 503. Hollow flat box; 504. Vent pipe; 505. Negative pressure suction cup;

[0044] 6. Crimping mechanism; 601. Telescopic rod; 602. Positioning plate; 603. Guide pin; 604. Buffer plate; 605. Annular airbag; 606. Crimping joint; 607. Crimping cylinder;

[0045] 7. Back-connection mechanism; 701. Fixed horizontal plate; 702. Lifting cylinder; 703. Lifting horizontal plate; 704. Concave track; 705. Angle motor; 706. Tilting block; 707. Tilting shaft; 708. Electric telescopic rod; 709. Elevation platform; 710. Back-connection base plate; 711. Moving rod; 712. Concave frame; 713. Fixed slot; 714. Insert plate; 715. Rectangular sleeve; 716. Buffer pad; 717. Conductive vertical plate; 718. Conductive elastic plate; 719. Conductive inclined plate; 720. Docking short rail; 721. Drive cylinder; 722. Docking short block;

[0046] 8. Reciprocating test mechanism; 801. Mounting base; 802. Test screw; 803. Test slide bar; 804. Test slide plate; 805. Test lever arm; 806. Test top plate; 807. Test motor;

[0047] 9. Adaptor mechanism; 901. Adaptor base plate; 902. Right-angle component; 903. Adaptor slide bar; 904. Adaptor slider; 905. Adaptor moving plate; 906. Adaptor wall panel; 907. Adaptor long rod; 908. First adapter screw; 909. First adapter motor; 910. Second adapter motor; 911. Second adapter screw; 912. Drive block; 913. Straightening plate; 914. Probe head. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0049] In this embodiment, refer to Figure 1-14This solution provides a performance testing device for circuit breakers, comprising a testing station 1, an internal conveying mechanism 2, a frame circuit breaker 211 placed on top of the conveying mechanism 2, an alignment mechanism 3 on top of the conveying mechanism 2 for calibrating and fixing the position of the frame circuit breaker 211, a testing platform 4 on the front side of the conveying mechanism 2, a fixed workstation on top of the testing platform 4, a transfer mechanism 5 on the front side of the top of the testing platform 4 for driving the frame circuit breaker 211 to move between the conveying mechanism 2 and the testing platform 4, a crimping mechanism 6 above the testing platform 4 for connecting the frame circuit breaker 211 to the testing circuit, a back-connection mechanism 7 between the transfer mechanism 5 and the crimping mechanism 6 for connecting the frame circuit breaker 211 to the power supply, a reciprocating test mechanism 8 in the middle of the back-connection mechanism 7 for performing mechanical wear tests on the frame circuit breaker 211, and an adapter mechanism 9 at the bottom of the reciprocating test mechanism 8 for driving the reciprocating test mechanism 8 to move.

[0050] Please see Figure 1 , Figure 2 and Figure 3 The testing station 1 includes an isolation shell 101. A controller 102 is fixedly installed on the left side of the isolation shell 101, located at its front end. Observation windows 103 are opened on both the left and right sides of the isolation shell 101, and the two observation windows 103 are aligned with each other. The observation window 103 on the left side of the isolation shell 101 is located behind the controller 102. Fixing holes 104 are opened on both the left and right sides of the isolation shell 101, located behind the observation windows 103, and the two fixing holes 104 are aligned. The conveying mechanism 2 is installed through the fixing holes 104. The testing table 4 is fixedly installed on the bottom surface of the inner cavity of the isolation shell 101. The transfer mechanism 5 and the back-connecting mechanism 7 are fixedly installed on the front side of the inner cavity of the isolation shell 101. The pressing mechanism 6 is fixedly installed on the top surface of the inner cavity of the isolation shell 101. The adapter mechanism 9 is fixedly installed between the front side of the testing table 4 and the front side of the inner cavity of the isolation shell 101.

[0051] The controller 102 can be used to manually input data or to read data through a barcode scanning module.

[0052] Please see Figure 2 , Figure 3 and Figure 4The conveying mechanism 2 includes two support legs 201, which are symmetrically arranged on the left and right sides of the isolation housing 101. A lower conveyor 202 is fixedly installed between the two support legs 201 at their bottom, and an upper conveyor 203 is fixedly installed between the two support legs 201 at their top. Both the lower conveyor 202 and the upper conveyor 203 are sections of the conveying line. The lower conveyor 202 and the upper conveyor 203 are inserted through into two fixed through holes 104. A fixed base plate 204 is fixedly connected to the bottom surface of the upper conveyor 203. The fixed base plate 204 is located inside the isolation housing 101. Lifting cylinders 205 are fixedly inserted at the four corners of the bottom surface of the fixed base plate 204. A lifting platform 206 is fixedly connected to the top of the internal extension rod. A positioning strip 207 located on the left side of the fixed base plate 204 is fixedly connected to the bottom surface of the upper conveyor 203. A positioning cylinder 208 is fixedly inserted into the middle of the bottom surface of the positioning strip 207. A limit switch 209 is fixedly connected to the top of the internal extension rod of the positioning cylinder 208. A transport pallet 210 is placed on the top of the upper conveyor 203. A frame circuit breaker 211 is placed on the top surface of the transport pallet 210. The transport pallet 210 is compatible with the limit switch 209. After the limit switch 209 moves upward under the drive of the positioning cylinder 208, it can stop the transport pallet 210. The lifting platform 206 supports the transport pallet 210 and moves upward under the drive of the lifting cylinder 205.

[0053] After the lifting platform 206 lifts the transport pallet 210 upwards, the top surface of the lifting platform 206 is flush with the top surface of the concave plate 401.

[0054] Please see Figure 5 , Figure 6 and Figure 7 The centering mechanism 3 includes two clamping mechanisms, which are stacked one on top of the other and do not interfere with each other. One clamping mechanism is arranged along the left and right direction to calibrate and fix the deviation of the frame circuit breaker 211 in the left and right direction, and the other clamping mechanism is arranged along the front and back direction to calibrate and fix the positional deviation of the frame circuit breaker 211 in the front and back direction.

[0055] The clamping mechanism includes a rectangular housing 301, which is fixedly connected to the edge of the top surface of the transport pallet 210. Two forward screws 302 are symmetrically and movably inserted into the side of the rectangular housing 301 facing the center of the top surface of the transport pallet 210. The forward screws 302 are located at the ends of the rectangular housing 301. A reverse screw 303 is fixedly connected to the end of the forward screw 302 away from the rectangular housing 301. The forward screws 302 and the reverse screws 303 are symmetrical about the center surface of the transport pallet 210. The two ends of the reverse screws 303 away from the forward screws 302 are movably mounted with the same rectangular strip 304. The two forward screws 302 are positioned relative to each other. Clamping bars 305 are threadedly installed between the two reverse screws 303. The two clamping bars 305 are symmetrical about the center face of the transport pallet 210. The end of the forward screw 302 near the rectangular housing 301 extends into the interior of the rectangular housing 301 and is fixedly sleeved with a worm gear 306. An operating rod 307 is rotatably installed between the two surfaces of the inner cavity of the rectangular housing 301. The operating rod 307 is perpendicular to the forward screw 302. A worm gear 309 is fixedly installed near the end of the operating rod 307. The worm gear 309 meshes with the worm gear 306. One end of the operating rod 307 extends to the outside of the rectangular housing 301 and is fixedly connected to a tool sleeve 308.

[0056] Please see Figure 3 The testing platform 4 includes a concave plate 401, which is fixedly connected to the bottom surface of the inner cavity of the isolation shell 101. The rear side of the concave plate 401 is fixedly connected to the front side of the upper conveyor 203 and the lower conveyor 202. Two protrusions 402 are symmetrically fixedly connected to the left and right ends of the top surface of the concave plate 401. The channel between the two protrusions 402 is aligned with the stopped transport pallet 210. The two protrusions 402 are provided with chamfers 403 at their rear ends on their two sides that are close to each other. A baffle 404 at its front end is fixedly connected to the top surface of the concave plate 401.

[0057] Rotatable steel balls are evenly spaced on the top surfaces of the lifting platform 206, the transport pallet 210, and the concave plate 401 to reduce friction during movement.

[0058] Please see Figure 3 and Figure 8The transfer mechanism 5 includes a limiting strip 501 and two transfer electric cylinders 502. The limiting strip 501 is fixedly connected to the top surface of the upper conveyor 203 and located on the rear side of the transport pallet 210. The front ends of the two transfer electric cylinders 502 are fixedly installed on the front side of the inner cavity of the isolation shell 101. The two transfer electric cylinders 502 are symmetrical about the center plane of the concave plate 401. The rear ends of the two transfer electric cylinders 502 are fixedly connected to the same hollow flat box 503. The left end face of the hollow flat box 503 is fixedly connected to a vent pipe 504. The vent pipe 504 is located above the baffle 404. The vent pipe 504 is connected to an external pneumatic system through a reversing valve. Five negative pressure suction cups 505 are fixedly connected at equal intervals on the rear side of the vent pipe 504. The negative pressure suction cups 505 correspond to the rectangular shell 301 at the front end of the transport pallet 210.

[0059] Please see Figure 3 and Figure 9 The crimping mechanism 6 includes two telescopic rods 601, both of which are fixedly connected to the top surface of the inner cavity of the isolation shell 101. The bottom ends of the two telescopic rods 601 are fixedly connected to the same positioning plate 602. Four guide pins 603 are inserted at the four corners of the top surface of the positioning plate 602, which can move up and down. The bottom ends of the four guide pins 603 are fixedly connected to the same buffer plate 604. Multiple annular airbags 605 are stacked on the outside of the guide pins 603 and located between the positioning plate 602 and the buffer plate 604. Multiple crimping joints 606 are fixedly installed on the bottom surface of the buffer plate 604. A crimping cylinder 607 is fixedly installed in the middle of the top surface of the positioning plate 602. The top end of the crimping cylinder 607 is fixedly installed on the top surface of the inner cavity of the isolation shell 101.

[0060] Please see Figure 3 , Figure 10 , Figure 11 , Figure 12 and Figure 13The back-connection mechanism 7 includes a fixed horizontal plate 701, which is fixedly connected to the front side of the inner cavity of the isolation housing 101 and located above the transfer electric cylinder 502. Two lifting cylinders 702 are symmetrically fixedly installed on the top surface of the fixed horizontal plate 701. The bottom ends of the two lifting cylinders 702 are fixedly connected to the same lifting horizontal plate 703. Two concave rails 704 are symmetrically fixedly connected to the bottom surface of the lifting horizontal plate 703. Angle motors 705 are fixedly installed on the two mutually distant surfaces of the two concave rails 704. The output shafts of the angle motors 705 extend to the concave rails 704. 4. A flipping block 706 is fixedly connected inside the concave track 704. A flipping shaft 707 is fixedly connected to the other end face of the flipping block 706. The flipping shaft 707 is movably inserted into the other side of the concave track 704. An electric telescopic rod 708 is fixedly connected to the rear side of the flipping block 706. A raised platform 709 located at the rear end of the concave track 704 is fixedly connected to the bottom surface of the inner cavity. When the electric telescopic rod 708 rests on the top surface of the raised platform 709, it is in a horizontal state. The rear ends of the two electric telescopic rods 708 are fixedly installed with the same back-connecting base plate 710. Four moving rods 7 are movably inserted into the back-connecting base plate 710. 11. The front ends of the four moving rods 711 are fixedly connected to the same concave frame 712. The left and right sides of the inner cavity of the concave frame 712 are provided with fixing slots 713. The top of the fixing slot 713 is open. An insert plate 714 is inserted into the fixing slot 713. Multiple rectangular sleeves 715 are detachably installed on the insert plate 714. A buffer pad 716 is fixedly connected to the front end of each rectangular sleeve 715. A conductive vertical plate 717 is provided between the upper and lower surfaces of the inner cavity of the rectangular sleeve 715. Conductive elastic plates 718 are fixedly connected to the upper and lower ends of the front side of the conductive vertical plate 717. The front ends of the two conductive elastic plates 718 are fixedly connected to conductive inclined plates 719. The free ends of the two conductive inclined plates 719 are in contact with each other and are inclined towards the conductive vertical plate 717. The middle of the rear side of the insert plate 714 is fixedly connected to the docking short rail 720. The middle of the rear side of the back-connecting base plate 710 is fixedly installed with a driving cylinder 721. The rod extending from the inside of the driving cylinder 721 passes through the back-connecting base plate 710 and is fixedly connected to the docking short block 722. The docking short block 722 is inserted into the docking short rail 720 and can only move up and down inside the docking short rail 720.

[0061] Please see Figure 3 and Figure 14The reciprocating test mechanism 8 includes a mounting base 801, which is mounted on the front side of the concave plate 401. A test screw 802 located in the middle is rotatably mounted on the top surface of the mounting base 801. Four test slide rods 803 are evenly distributed around the test screw 802. The bottom ends of the four test slide rods 803 are fixedly connected to the top surface of the mounting base 801. The top ends of the four test slide rods 803 are fixedly connected to the same test top plate 806. A test motor 807 is fixedly mounted on the top surface of the test top plate 806. The output shaft of the test motor 807 passes downward through the test top plate 806 and is fixedly connected to the top end of the test screw 802. The same test slide plate 804 is slidably sleeved on the outside of the four test slide rods 803. The test slide plate 804 is threadedly sleeved on the outside of the test screw 802. A test lever arm 805 is fixedly connected on the top surface of the test slide plate 804. The rear end of the test lever arm 805 extends backward and is adapted to the operating handle on the frame circuit breaker 211.

[0062] Please see Figure 2 , Figure 3 and Figure 14 The adapter mechanism 9 includes an adapter base plate 901. Right-angle members 902 are fixedly connected to both ends of the front side of the adapter base plate 901. The right-angle members 902 are bolted to the front side of the inner cavity of the isolation housing 101. Two adapter slide rods 903 are symmetrically fixedly connected to the rear side of the adapter base plate 901. The rear ends of both adapter slide rods 903 are fixedly connected to the front side of the concave plate 401 via a straightening plate 913. An adapter slider 904 is slidably sleeved on the outside of each adapter slide rod 903. A single adapter moving plate 905 is fixedly connected to the top surface of each of the two adapter sliders 904. An adapter wall plate 906 is fixedly connected to both ends of the top surface of the adapter moving plate 905. Two adapter long rods 907 are fixedly connected between the two adapter wall plates 906. The two adapter long rods 907 are slidably inserted into the mounting base 801. The two adapter wall plates 906 are rotatable. A first adapter screw 908 is inserted into the upper side of the middle position of the two adapter rods 907. The mounting base 801 is threadedly sleeved on the outside of the first adapter screw 908. The right end of the first adapter screw 908 passes through the corresponding adapter wall plate 906 and is fixedly connected to the first adapter motor 909. The first adapter motor 909 is fixedly installed on the corresponding adapter wall plate 906. A second adapter motor 910 located in the middle is fixedly installed on the front side of the adapter base plate 901. A second adapter screw 911 is fixedly connected to the output shaft of the second adapter motor 910. The rear end of the second adapter screw 911 passes through the adapter base plate 901 and is movably sleeved on the front side of the concave plate 401. A drive block 912 is threadedly sleeved on the outside of the second adapter screw 911. The top surface of the drive block 912 is fixedly connected to the middle position of the bottom surface of the adapter moving plate 905.

[0063] The adapter mechanism 9 also includes a probe 914, which is fixedly connected to the rear side of the inner cavity of the isolation housing 101 and points to the space above the concave plate 401. The central axis of the probe 914 coincides with the center plane of the concave plate 401.

[0064] There are three probes 914. One probe 914 points to the concave plate 401, and the other two probes 914 are symmetrically distributed on the left and right sides of this probe 914.

[0065] The probe 914 pointing towards the concave plate 401 is the center probe 914, the probe 914 to the left of the center probe 914 is the outgoing probe 914, and the probe 914 to the right of the center probe 914 is the incoming probe 914.

[0066] All three probes 914 can directly detect whether there is a frame circuit breaker 211 on the top surface of the section of the transport mechanism 2 located inside the detection station 1.

[0067] Distance measuring probes are fixedly installed on the bottom surface of the fixed horizontal plate 701, the right end face of the mounting base 801, and the bottom surface of the test slide plate 804. The distance measuring probes are all electrically connected to the controller 102. The controller 102 uses the distance measuring probe on the bottom surface of the fixed horizontal plate 701 to detect the distance between the fixed horizontal plate 701 and the lifting horizontal plate 703, which is used to verify the vertical position of the rectangular sleeve 715. The controller 102 uses the distance measuring probe on the right end face of the mounting base 801 to detect the distance between the mounting base 801 and the right end adapter wall plate 906 of the adapter moving plate 905, which is used to verify the left and right position of the mounting base 801. The controller 102 uses the distance measuring probe on the bottom surface of the test slide plate 804 to detect the distance between the test slide plate 804 and the mounting base 801, which is used to verify the vertical position of the test lever arm 805.

[0068] Please see Figure 3 and Figure 5 A frame circuit breaker, wherein the top surface of the frame circuit breaker 211 is provided with a terminal corresponding to and adapted to the crimp connector 606, the rear side of the frame circuit breaker 211 is provided with a power supply terminal corresponding to and adapted to the rectangular bushing 715, the front side of the frame circuit breaker 211 is provided with an operating handle corresponding to and adapted to the test lever arm 805, and the external dimensions of the frame circuit breaker 211 are adapted to the clamping range of the centering mechanism 3 and the fixed position of the testing table 4.

[0069] Working principle

[0070] First, place the frame circuit breaker 211 on the top surface of the transport pallet 210. Then, operate the clamping mechanisms arranged at the front and rear. During operation, insert a tool into the tool sleeve 308 and drive it to rotate. Then, the tool sleeve 308 drives the two worm gears 309 to rotate via the operating rod 307. Afterward, the worm gears 309 drive the forward screw 302 to rotate through the meshing action between themselves and the worm gear 306. Then, the forward screw 302 drives the reverse screw 303 to rotate synchronously. Then, under the action of the threaded engagement, the forward screw 302 drives its external clamping bar 305 to move backward, while the reverse screw 303, under the action of the threaded engagement... The lower drive moves the external clamping bar 305 forward, then the two clamping bars 305 move synchronously towards each other, and then the clamping bar 305 contacts the frame circuit breaker 211 and applies a calibration force to it. Then the frame circuit breaker 211 twists and slides under the action of the clamping bar 305 until the two clamping bars 305 are clamped on the front and rear surfaces of the frame circuit breaker 211 respectively. Then the clamping mechanism arranged on the left and right is operated in the same way until the corresponding two clamping bars 305 are clamped on the left and right sides of the frame circuit breaker 211 respectively. Thus, the purpose of fixing the frame circuit breaker 211 to the middle of the top surface of the transport pallet 210 is achieved.

[0071] Then, the plug plate 714 is pulled out, and the plug plate 714 adapted to the power supply terminal on the rear side of the frame circuit breaker 211 is taken and inserted into the fixing slot 713. At the same time, the docking short block 722 is inserted into the docking short rail 720. Then, the vertical and left-right position information of the operating handle on the front side of the frame circuit breaker 211 and the vertical information of the power supply terminal are input into the controller 102. Then, the controller 102 controls the number of rotations of the output shaft of the test motor 807 according to the vertical position information. Then, the test motor 807 drives the test screw 802 to rotate. Then, the test slide plate 804 moves the test lever arm 805 downward under the action of the threaded engagement between it and the test screw 802. The controller 102 controls the vertical position of the test lever arm 805 by controlling the number of rotations of the output shaft of the test motor 807. 102 controls the number of rotations of the output shaft of the first adapter motor 909 according to the position information in the left and right directions. Then, the first adapter motor 909 rotates the first adapter screw 908. After that, the mounting base 801 moves the test lever arm 805 to the right through the test slide bar 803 and the test slide plate 804 under the action of the threaded engagement between it and the first adapter screw 908. The controller 102 controls the left and right position of the test lever arm 805 by controlling the number of rotations of the output shaft of the first adapter motor 909. Then, the controller 102 controls the position of the lifting horizontal plate 703 by controlling the extension of the lifting cylinder 702, and then controls the vertical position of the rectangular sleeve 715 when the electric telescopic pole 708 is in a horizontal state, so that the rectangular sleeve 715 is adapted to the power supply end. At this time, the bottom end of the test lever arm 805 is adapted to the position of the operating handle.

[0072] Then, the transport mechanism 2 moves the frame circuit breaker 211 to the left via the transport pallet 210. Next, the controller 102 uses the center probe 914 to detect whether the frame circuit breaker 211 is on the concave plate 401. If a frame circuit breaker 211 is being detected on the top of the concave plate 401, the controller 102 controls the positioning cylinder 208 to be in a shortened state. At this time, the limit switch 209 will not obstruct the movement of the transport pallet 210. If no frame circuit breaker 211 is being detected on the top of the concave plate 401, the controller 102 controls the positioning cylinder 208 to be in an extended state, and then the limit switch... Positioning cylinder 208 lifts pallet 209, then limit switch 209 stops pallet 210. Next, controller 102 controls lifting cylinder 205 to extend, which then lifts lifting platform 206 upwards. Lifting platform 206 then lifts pallet 210 upwards, separating pallet 210 from upper conveyor 203 and interrupting transmission between them. Pallet 210 then separates from limit switch 209. At the end of lifting cylinder 205's extension, the front side of pallet 210 aligns with the channel between the two bosses 402. Then, controller 102... The controller 102 controls the extension of the transfer electric cylinder 502. Then, the transfer electric cylinder 502, through the hollow flat box 503, presses the negative pressure suction cup 505 against the front side of the rectangular housing 301 at the front end of the transport pallet 210. The transport pallet 210 is prevented from moving backward by the limiting strip 501. Afterward, the negative pressure suction cup 505 adheres to the front side of the rectangular housing 301 at the front end of the transport pallet 210. Then, the controller 102 controls the extension of the transfer electric cylinder 502. Next, the transfer electric cylinder 502, through the suction action between the hollow flat box 503, the negative pressure suction cup 505, and the rectangular housing 301, and the centering mechanism... 3. Move forward with the transport pallet 210 and the frame circuit breaker 211. Then, the transport pallet 210 enters the channel between the two bosses 402. The channel between the two bosses 402 restricts the transport pallet 210 in the left and right directions. Then, the front side of the transport pallet 210 abuts against the rear side of the stop bar 404. Then, the negative pressure suction cup 505 pulls the rectangular housing 301 to press the transport pallet 210 against the rear side of the stop bar 404, restricting the transport pallet 210 in the front and back directions. This completes the work of transferring the frame circuit breaker 211 from the transport mechanism 2 to the testing table 4.

[0073] Then, controller 102 controls the extension of crimping cylinder 607. Crimping cylinder 607 then moves crimping connector 606 downwards via positioning plate 602, guide pin 603, annular airbag 605, and buffer plate 604. The bottom end of crimping connector 606 is then inserted into the terminal at the top of frame circuit breaker 211, achieving docking. Simultaneously, positioning plate 602 squeezes annular airbag 605, causing it to compress elastically. Buffer plate 604, under the elastic force of annular airbag 605, presses crimping connector 606 onto the terminal, preventing hard contact. Then, controller 102 controls the output shaft of angle motor 705 to rotate. Angle motor 705 then drives electric telescopic rod 708 downwards around the rotating shaft 707 via flipping block 706, until electric telescopic rod 708 contacts the raised platform 709. At this point, electric telescopic rod 708 is horizontal, and rectangular sleeve 715 is connected to the power supply terminal on the rear side of frame circuit breaker 211. After the rotation, the controller 102 controls the extension of the drive cylinder 721. Then, the drive cylinder 721 moves towards the power supply end through the insertion action between the docking short block 722 and the docking short rail 720, and the insertion plate 714 moves the rectangular sleeve 715. Then, the power supply end is inserted between the two conductive inclined plates 719 inside the corresponding rectangular sleeve 715. Then, the two conductive inclined plates 719 bend and deform outward. The power supply end passes through the gap between the two conductive inclined plates 719. Then, the end of the conductive inclined plate 719 abuts against the surface of the power supply end, completing the circuit docking. Then, the controller 102 controls the detection circuit to detect the frame circuit breaker 211. Then, the controller 102 controls the output shaft of the test motor 807 to run in both directions. In the forward direction, the test arm 805 presses down the operating handle. In the reverse direction, the test arm 805 gradually releases the operating handle. The operating handle automatically returns to its original position, and the mechanical wear test is performed on the frame circuit breaker 211.

[0074] After the test, the test motor 807, under the control of the controller 102, drives the test arm 805 to move upward to the adjusted position height. Then, the controller 102 controls the drive cylinder 721 to shorten, and then the rectangular sleeve 715 moves away from the power supply end. After that, the power supply end is pulled out of the rectangular sleeve 715. Then, the controller 102 controls the output shaft of the angle motor 705 to reverse. Then, the angle motor 705, through the flipping block 706, the electric telescopic rod 708, and the back-mounted base plate 710, carries the rectangular sleeve 715 and rotates it upward around the flipping shaft 707 until the rectangular sleeve 715 returns to its upward position. At this time, the controller 102 controls the angle motor 705 to stop. After that, when neither the incoming nor outgoing probe 914 detects the frame circuit breaker 211, it means that there is no frame circuit breaker 211 in the section of the transport mechanism 2 located in the isolation housing 101. At this time, the controller 102 then uses the lifting cylinder 2... 05 controls the lifting platform 206 to lift upwards. Then, the controller 102 controls the transfer electric cylinder 502 to extend. The transfer electric cylinder 502 then pushes the centering mechanism 3, the transport pallet 210, and the frame circuit breaker 211 onto the lifting platform 206 through the hollow flat box 503 and the negative pressure suction cup 505, until the rear side of the transport pallet 210 abuts against the front of the limit strip 501. Then, the controller 102 controls the reversing valve to act, breaking the vacuum inside the hollow flat box 503 and causing the suction force to disappear. After that, the controller 102 controls the lifting cylinder 205 to shorten. Then, the lifting platform 206, the transport pallet 210, the frame circuit breaker 211, and the centering mechanism 3 move downwards. Then, the transport pallet 210 returns to the upper conveyor 203. After that, the upper conveyor 203 drives the transport pallet 210 to move to the next process. The testing equipment along the way will not affect the forward movement of the frame circuit breaker 211.

[0075] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A performance testing device for circuit breakers, comprising a testing station (1), characterized in that, The testing station (1) is equipped with a conveying mechanism (2). The frame circuit breaker (211) is placed on top of the conveying mechanism (2). The top of the conveying mechanism (2) is equipped with a centering mechanism (3). The centering mechanism (3) calibrates and fixes the position of the frame circuit breaker (211). A testing platform (4) is provided on the front side of the conveying mechanism (2). The top of the testing platform (4) is a fixed workstation. A transfer mechanism (5) is provided on the front side of the top of the testing platform (4). The transfer mechanism (5) drives the frame circuit breaker (211) between the conveying mechanism (2) and the testing platform. (4) Move between, and a crimping mechanism (6) is provided above the test platform (4). The crimping mechanism (6) connects the frame circuit breaker (211) to the test circuit. A back connection mechanism (7) is provided between the transfer mechanism (5) and the crimping mechanism (6). The back connection mechanism (7) connects the frame circuit breaker (211) to the power supply. A reciprocating test mechanism (8) is provided in the middle of the back connection mechanism (7). The reciprocating test mechanism (8) performs a mechanical wear test on the frame circuit breaker (211). An adapter mechanism (9) is provided at the bottom of the reciprocating test mechanism (8).

2. The performance testing device for circuit breakers according to claim 1, characterized in that, The testing station (1) includes an isolation shell (101). A controller (102) is fixedly installed on the left side of the isolation shell (101) at its front end. Observation windows (103) are opened on both the left and right sides of the isolation shell (101). The two observation windows (103) are aligned with each other. The observation window (103) on the left side of the isolation shell (101) is located behind the controller (102). Fixing perforations ( ) are opened on both the left and right sides of the isolation shell (101) behind the observation windows (103). 104), two fixed holes (104) are aligned, the conveying mechanism (2) is installed through the fixed hole (104), the testing table (4) is fixedly installed on the bottom surface of the inner cavity of the isolation shell (101), the transfer mechanism (5) and the back connection mechanism (7) are fixedly installed on the front side of the inner cavity of the isolation shell (101), the pressing mechanism (6) is fixedly installed on the top surface of the inner cavity of the isolation shell (101), and the adapter mechanism (9) is fixedly installed between the front side of the testing table (4) and the front side of the inner cavity of the isolation shell (101); The crimping mechanism (6) includes two telescopic rods (601), both of which are fixedly connected to the top surface of the inner cavity of the isolation shell (101). The bottom ends of the two telescopic rods (601) are fixedly connected to the same positioning plate (602). Four guide pins (603) are inserted at the four corners of the top surface of the positioning plate (602), which can move up and down. The bottom ends of the four guide pins (603) are fixedly connected to the same buffer plate (604). Multiple annular airbags (605) are stacked on the outside of the guide pins (603) and located between the positioning plate (602) and the buffer plate (604). Multiple crimping joints (606) are fixedly installed on the bottom surface of the buffer plate (604). A crimping cylinder (607) is fixedly installed in the middle of the top surface of the positioning plate (602). The top end of the crimping cylinder (607) is fixedly installed on the top surface of the inner cavity of the isolation shell (101).

3. The performance testing device for circuit breakers according to claim 2, characterized in that, The conveying mechanism (2) includes two support legs (201), which are symmetrically arranged on the left and right sides of the isolation shell (101). A lower conveyor (202) is fixedly installed between the two support legs (201) at their bottom, and an upper conveyor (203) is fixedly installed between the two support legs (201) at their top. Both the lower conveyor (202) and the upper conveyor (203) are sections of the conveying line. The lower conveyor (202) and the upper conveyor (203) are inserted through two fixed through holes (104). A fixed base plate (204) is fixedly connected to the bottom surface of the upper conveyor (203). The fixed base plate (204) is located inside the isolation shell (101). Lifting cylinders (205) are fixedly inserted at the four corners of the bottom surface of the fixed base plate (204). A lifting platform (206) is fixedly connected to the top of the internal extension rod. A positioning strip (207) located on the left side of the fixed base plate (204) is fixedly connected to the bottom surface of the upper conveyor (203). A positioning cylinder (208) is fixedly inserted in the middle of the bottom surface of the positioning strip (207). A limit switch (209) is fixedly connected to the top of the internal extension rod of the positioning cylinder (208). A transport pallet (210) is placed on the top of the upper conveyor (203). A frame circuit breaker (211) is placed on the top surface of the transport pallet (210). The transport pallet (210) is compatible with the limit switch (209). The limit switch (209) can stop the transport pallet (210) after moving upward under the drive of the positioning cylinder (208). The lifting platform (206) supports the transport pallet (210) and moves upward under the drive of the lifting cylinder (205).

4. The performance testing device for a circuit breaker according to claim 3, characterized in that, The centering mechanism (3) includes two clamping mechanisms. The two clamping mechanisms are stacked on top of each other and will not interfere with each other. One clamping mechanism is arranged along the left and right direction to calibrate and fix the deviation of the frame circuit breaker (211) in the left and right direction. The other clamping mechanism is arranged along the front and back direction to calibrate and fix the positional deviation of the frame circuit breaker (211) in the front and back direction. The clamping mechanism includes a rectangular housing (301), which is fixedly connected to the edge of the top surface of the transport pallet (210). Two forward screws (302) are symmetrically and movably inserted into the side of the rectangular housing (301) facing the center of the top surface of the transport pallet (210). The forward screws (302) are located at the ends of the rectangular housing (301). A reverse screw (303) is fixedly connected to the end of the forward screw (302) away from the rectangular housing (301). The forward screws (302) and reverse screws (303) are symmetrical about the center surface of the transport pallet (210). A rectangular strip (304) is movably installed at both ends of the two reverse screws (303) away from the forward screws (302). The two forward screws (302) are positioned relative to each other. Two opposing screws (303) are threaded together and clamping bars (305) are installed between them. The two clamping bars (305) are symmetrical about the center face of the transport pallet (210). The end of the forward screw (302) near the rectangular housing (301) extends into the interior of the rectangular housing (301) and is fixedly sleeved with a worm gear (306). An operating rod (307) is rotatably installed between two surfaces of the inner cavity of the rectangular housing (301). The operating rod (307) is perpendicular to the forward screw (302). A worm gear (309) is fixedly installed near the end of the operating rod (307). The worm gear (309) meshes with the worm gear (306). One end of the operating rod (307) extends into the exterior of the rectangular housing (301) and is fixedly connected with a tool sleeve (308).

5. The performance testing device for a circuit breaker according to claim 4, characterized in that, The testing platform (4) includes a concave plate (401), which is fixedly connected to the bottom surface of the inner cavity of the isolation shell (101). The rear side of the concave plate (401) is fixedly connected to the front side of the upper conveyor (203) and the lower conveyor (202). Two protrusions (402) are symmetrically fixedly connected to the left and right ends of the top surface of the concave plate (401). The channel between the two protrusions (402) is aligned with the stopped transport pallet (210). The two protrusions (402) are provided with chamfers (403) at their rear ends on their two sides that are close to each other. A baffle (404) at its front end is fixedly connected to the top surface of the concave plate (401).

6. The performance testing device for a circuit breaker according to claim 5, characterized in that, The transfer mechanism (5) includes a limiting strip (501) and two transfer electric cylinders (502). The limiting strip (501) is fixedly connected to the top surface of the upper conveyor (203) and located on the rear side of the transport pallet (210). The front ends of the two transfer electric cylinders (502) are fixedly installed on the front side of the inner cavity of the isolation shell (101). The two transfer electric cylinders (502) are symmetrical about the center plane of the concave plate (401). The two transfer electric cylinders (502) have... The rear end is fixedly connected to the same hollow flat box (503). The left end face of the hollow flat box (503) is fixedly connected to a vent pipe (504). The vent pipe (504) is located above the baffle (404). The vent pipe (504) is connected to the external pneumatic system through a reversing valve. Five negative pressure suction cups (505) are fixedly connected at equal intervals on the rear side of the vent pipe (504). The negative pressure suction cups (505) correspond to the rectangular shell (301) at the front end of the transport pallet (210).

7. The performance testing device for a circuit breaker according to claim 6, characterized in that, The back-connection mechanism (7) includes a fixed horizontal plate (701), which is fixedly connected to the front side of the inner cavity of the isolation shell (101) and located above the transfer electric cylinder (502). Two lifting cylinders (702) are fixedly installed symmetrically on the top surface of the fixed horizontal plate (701). The bottom ends of the two lifting cylinders (702) are fixedly connected to the same lifting horizontal plate (703). Two concave rails (704) are fixedly connected symmetrically on the bottom surface of the lifting horizontal plate (703). Angle motors (705) are fixedly installed on the two mutually distant surfaces of the two concave rails (704). The output shaft of the angle motors (705) extends to the concave rails (704). 4) An internal rotating block (706) is fixedly connected to the rotating block (706). A rotating shaft (707) is fixedly connected to the other end face of the rotating block (706). The rotating shaft (707) is movably inserted into the other side of the concave track (704). An electric telescopic rod (708) is fixedly connected to the rear side of the rotating block (706). A raised platform (709) located at its rear end is fixedly connected to the bottom surface of the inner cavity of the concave track (704). When the electric telescopic rod (708) falls on the top surface of the raised platform (709), it is in a horizontal state. The rear ends of the two electric telescopic rods (708) are fixedly installed with the same back-connecting base plate (710). Four moving rods (708) are movably inserted into the back-connecting base plate (710). 11) The front ends of the four moving rods (711) are fixedly connected to the same concave frame (712). The left and right sides of the inner cavity of the concave frame (712) are provided with fixed slots (713). The top of the fixed slot (713) is open. A plug plate (714) is inserted into the fixed slot (713). Multiple rectangular sleeves (715) are detachably installed on the plug plate (714). The front end of the rectangular sleeve (715) is fixedly connected to a buffer pad (716). A conductive vertical plate (717) is provided between the upper and lower sides of the inner cavity of the rectangular sleeve (715). The upper and lower ends of the front side of the conductive vertical plate (717) are fixedly connected to conductive elastic plates (718). The front ends of the two conductive elastic plates (718) are fixedly connected to conductive inclined plates (719). The free ends of the two conductive inclined plates (719) are in contact with each other and are inclined towards the conductive vertical plate (717). The middle of the rear side of the insert plate (714) is fixedly connected to a docking short rail (720). The middle of the rear side of the back-connecting base plate (710) is fixedly installed with a driving cylinder (721). The rod extending from the inside of the driving cylinder (721) passes through the back-connecting base plate (710) and is fixedly connected to a docking short block (722). The docking short block (722) is inserted into the docking short rail (720). The docking short block (722) can only move up and down inside the docking short rail (720).

8. The performance testing device for a circuit breaker according to claim 7, characterized in that, The reciprocating test mechanism (8) includes a mounting base (801), which is installed on the front side of the concave plate (401). A test screw (802) located in the middle is rotatably mounted on the top surface of the mounting base (801). Four test slides (803) are evenly distributed around the test screw (802). The bottom ends of the four test slides (803) are fixedly connected to the top surface of the mounting base (801). The top ends of the four test slides (803) are fixedly connected to the same test top plate (806). The top surface of the test top plate (806) is... A test motor (807) is fixedly installed. The output shaft of the test motor (807) passes through the test top plate (806) downward and is fixedly connected to the top of the test screw (802). The four test slides (803) are slidably sleeved with the same test slide plate (804). The test slide plate (804) is threadedly sleeved on the outside of the test screw (802). A test lever arm (805) is fixedly connected to the top surface of the test slide plate (804). The rear end of the test lever arm (805) extends backward and is adapted to the operating handle on the frame circuit breaker (211).

9. A performance testing device for a circuit breaker according to claim 8, characterized in that, The adapter mechanism (9) includes an adapter base plate (901). Right-angle members (902) are fixedly connected to both ends of the front side of the adapter base plate (901). The right-angle members (902) are bolted to the front side of the inner cavity of the isolation shell (101). Two adapter slide rods (903) are symmetrically fixedly connected to the rear side of the adapter base plate (901). The rear ends of both adapter slide rods (903) are fixedly connected to the front side of the concave plate (401) via a straightening plate (913). Each adapter slider (903) has an adapter slide block (904) slidably sleeved on its exterior. The top surfaces of the two adapter slide blocks (904) are fixedly connected to the same adapter moving plate (905). The left and right ends of the top surface of the adapter moving plate (905) are fixedly connected to adapter wall plates (906). Two adapter long rods (907) are fixedly connected between the two adapter wall plates (906). The two adapter long rods (907) are slidably inserted into the mounting base (801). The two adapter wall plates (906) are rotatable. The first adapter screw (908) is inserted into the rotating part. The first adapter screw (908) is located on the upper side of the middle position of the two adapter rods (907). The mounting base (801) is threadedly fitted onto the outside of the first adapter screw (908). The right end of the first adapter screw (908) passes through the corresponding adapter wall plate (906) and is fixedly connected to the first adapter motor (909). The first adapter motor (909) is fixedly installed on the corresponding adapter wall plate (906). The adapter base plate (901) A second adapter motor (910) located in the middle is fixedly installed on the front side. A second adapter screw (911) is fixedly connected to the output shaft of the second adapter motor (910). The rear end of the second adapter screw (911) passes through the adapter base plate (901) and is movably sleeved on the front side of the concave plate (401). A drive block (912) is threaded onto the outside of the second adapter screw (911). The top surface of the drive block (912) is fixedly connected to the middle position of the bottom surface of the adapter moving plate (905). The adapter (9) also includes a probe (914), which is fixedly connected to the rear side of the inner cavity of the isolation shell (101) and points to the space above the concave plate (401). The central axis of the probe (914) coincides with the central surface of the concave plate (401). There are three probes (914), one probe (914) points to the concave plate (401), and the other two probes (914) are symmetrically distributed on the left and right sides of this probe (914).

10. A frame circuit breaker, characterized in that, The frame circuit breaker (211) is adapted to the performance testing device for circuit breakers according to any one of claims 1-9. The top surface of the frame circuit breaker (211) is provided with a terminal corresponding to and adapted to the crimp connector (606). The rear side of the frame circuit breaker (211) is provided with a power supply terminal corresponding to and adapted to the rectangular bushing (715). The front side of the frame circuit breaker (211) is provided with an operating handle corresponding to and adapted to the test lever arm (805). The external dimensions of the frame circuit breaker (211) are adapted to the clamping range of the centering mechanism (3) and the fixed position of the testing table (4).

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