A circuit breaker testing device

Abstract

The application relates to the technical field of electric variable testing, and particularly provides a circuit breaker testing device. The circuit breaker testing device comprises a testing table, a material conveying assembly, an electric variable detection assembly, a rechecking assembly, a sorting assembly and a screening assembly. The application can comprehensively and variously detect and test the circuit breaker, so as to ensure product quality and safety, improve production efficiency, guarantee product quality and safety, and simultaneously improve the clamping force, the stability during clamping and transferring, and the synchronous cooling of the circuit breaker, so as to enhance the accuracy of subsequent circuit breaker detection. The rechecking assembly, the sorting assembly and the screening assembly are used to detect and sort the circuit breaker, so as to further improve the efficiency of the overall production line and the qualified rate of products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical variable testing, and particularly provides a circuit breaker testing device. BACKGROUND

[0002] The circuit breaker refers to a switching device capable of closing, carrying and opening the current under normal circuit conditions and capable of closing, carrying and opening the current under abnormal circuit conditions within a specified time. When a short circuit occurs, the circuit breaker can use the large current magnetic field generated by the short circuit to overcome the counterforce spring, and the tripping device pulls the operating mechanism to act, thereby completing the instantaneous tripping of the switch. Or when overload occurs, the current becomes larger, the heat generation increases, and the bimetallic strip deforms to a certain extent, thereby pushing the operating mechanism to complete the instantaneous tripping action of the switch.

[0003] However, in the field of circuit breaker testing today, first, different structural forms of circuit breaker testing equipment need to be used to realize the testing of the circuit breaker, and second, the existing integrated circuit breaker testing device requires many manual auxiliary steps, resulting in low testing accuracy, low efficiency, low intelligent level and high cost. SUMMARY

[0004] Therefore, it is necessary to provide a circuit breaker testing device to solve at least one technical problem in the background art.

[0005] A circuit breaker testing device, comprising a testing table, a feeding assembly, an electrical variable detection assembly, a re-inspection assembly, a distribution assembly and a screening assembly, a vibration table is arranged at one side wall end of the testing table, the feeding assembly comprises a vibrating disc, a feeding element and a conveying track, the bottom surface of the vibrating disc is fixedly installed on the top surface of the vibration table, the feeding element is installed on one end of the top surface of the testing table adjacent to the vibration table, and the length direction of the feeding element is perpendicular to the length direction of the testing table, the conveying track is fixedly installed on the top surface of the testing table, and the length direction of the conveying track is arranged in parallel with the length direction of the testing table, the electrical variable detection assembly is fixedly installed in the middle part of the testing table, and the electrical variable detection assembly is located directly above the middle part of the conveying track, and the distribution assembly and the screening assembly are fixedly installed on the top surface of the testing table away from the vibration table from left to right and are arranged adjacent to the conveying track.

[0006] As a further improvement of the present application, the feeding element comprises a feeding track, a feeding vertical plate, a reversing barrier, a feeding protrusion, a buffer table and two buffer columns, the feeding track is fixedly installed on the top surface of the test table adjacent to one end of the vibration table, and one end of the feeding track is connected with the output end of the vibration disc, and the other end of the feeding track is arranged adjacent to the input end of the conveying track, the bottom end of the feeding vertical plate is fixedly installed on the top surface of the test table adjacent to one end of the vibration table, one side wall of the reversing barrier is fixedly installed on the top of the side wall of the feeding vertical plate away from the vibration table, and the reversing barrier is located directly above the input end of the conveying track, the side wall of the feeding protrusion is fixedly installed on the end of the inner side wall of the reversing barrier, and the top surface of the feeding protrusion is recessed with buffer sliding holes on both sides away from one end of the vibration table, the bottom surface of the buffer table is fixedly installed on the middle part of the top surface of the feeding protrusion, and the side wall top of the buffer table away from the vibration table is provided with a buffer mounting block, the top surface of the buffer mounting block is recessed with mounting sliding holes at both ends, and two buffer columns are slidingly installed in the two mounting sliding holes, the middle part of the two buffer columns is slidingly installed in the two buffer sliding holes, the middle part of the outer circumferential wall of the two buffer columns is provided with a limiting ring, and the buffer spring is arranged between the top surface of the limiting ring and the bottom surface of the buffer mounting block, and a transmission device is arranged in the conveying track for conveying and transporting the circuit breaker entering the conveying track.

[0007] As a further improvement of the present application, the electric variable detection assembly comprises a detection frame, four guide columns, a cylinder mounting plate and an electric variable detector, the detection frame is fixedly installed on the middle part of the top surface of the test table, the bottom ends of the four guide columns are respectively fixedly installed at the four corner parts of the top surface of the detection frame, the bottom surface of the cylinder mounting plate is fixedly connected with the top ends of the four guide columns at the four corner parts, the top surface of the cylinder mounting plate is recessed with a cylinder mounting groove, a positioning cylinder is arranged in the cylinder mounting groove, the top surface of the electric variable detector is recessed with detection sliding holes at the four corner parts, the electric variable detector is slidingly installed in the four guide columns through the four detection sliding holes, the top surface of the electric variable detector is fixedly connected with the output shaft of the positioning cylinder, and the electric variable detector is located directly above the middle part of the conveying track.

[0008] As a further improvement of the application, the reinspection assembly comprises a reinspection mounting frame, a reinspection driving motor, a reinspection mounting plate, two reinspection elements and a shooting camera, the bottom surface of the reinspection mounting frame is fixedly installed on the top surface of the test table away from the vibration table and adjacent to the conveying track, the two side walls of the reinspection mounting frame are respectively provided with a first rotating hole, the top of the side wall of one side of the reinspection mounting frame is provided with an "L"-shaped motor mounting plate, the top of the side wall of one side of the motor mounting plate is provided with a second rotating hole, the reinspection driving motor is fixedly installed on the top of the outer side wall of the motor mounting plate, the middle part of the two side walls of the reinspection mounting plate is respectively provided with a reinspection rotating ring, the two reinspection rotating rings are respectively rotatably installed in the two first rotating holes, and the output shaft of the reinspection driving motor is fixedly connected with the outer side wall of one of the reinspection rotating rings through the second rotating hole, the top and bottom surfaces of the reinspection mounting plate are respectively provided with a reinspection mounting table, the two reinspection elements are respectively fixedly installed on the end of the two reinspection mounting tables in a circumferential array, the two sides of the reinspection mounting plate are respectively provided with a clamping element, one end of the two clamping elements is respectively fixedly installed on the top of the side wall of one side of the reinspection mounting plate or the bottom of the side wall of the other side, each clamping element comprises a plurality of clamping columns, one end of the plurality of clamping columns is fixedly installed on the side wall of the reinspection mounting plate along the length direction of the reinspection mounting plate, and the two side walls of each clamping column are respectively provided with a reinspection clamping groove, and the bottom surface of the shooting camera is fixedly installed on the top surface of the test table away from the vibration table and above the reinspection elements away from the conveying track.

[0009] As a further improvement of the application, each reinspection element comprises a first driving cylinder, a driving cylinder mounting plate, a second driving cylinder, a moving mounting plate, a pawl clamping box and a plurality of controllers, the bottom of the first driving cylinder is fixedly installed on the end of the reinspection mounting table, the inner side wall of the driving cylinder mounting plate is fixedly installed on the output shaft of the first driving cylinder, the side wall of the second driving cylinder is fixedly installed on the outer side wall of the driving cylinder mounting plate, the top surface of the moving mounting plate is fixedly installed on the output shaft of the second driving cylinder, the inner side wall of the pawl clamping box is fixedly installed on the outer side wall bottom of the moving mounting plate, and the plurality of controllers are arranged in the pawl clamping box along the length direction.

[0010] As a further improvement of the present application, a plurality of expansion flow holes are equidistantly and recessed in the middle of the top surface or the bottom surface of each pawl clamping box along the length direction, an end surface of each expansion flow hole is recessed with a flow guide hole, a plurality of flow distribution holes are equidistantly and recessed in the inner side wall of the pawl clamping box along the length direction, the plurality of flow distribution holes are respectively communicated with the plurality of flow guide holes, both ends of each flow distribution hole are respectively recessed with an inclined preset slot, a sliding cavity is recessed at the end of each inclined preset slot away from the flow distribution hole, a plurality of clamping slots are equidistantly and recessed on both sides of the surface of the pawl clamping box away from the expansion flow hole along the length direction, the bottom of each clamping slot is communicated with the sliding cavity, the top surface and the bottom surface of the end wall at both ends of each clamping slot are recessed with a rotating slot at the corner, a clamping shaft is rotatably arranged in the middle of the side wall of each clamping slot, torsion springs are arranged at both ends of the clamping shaft and connected with the side wall of the clamping slot, a pawl is arranged on each clamping shaft, and a distribution group is arranged at the top of each clamping slot, each distribution group comprises four triangular blocks arranged oppositely, the four triangular blocks are respectively located directly above the four corners of the top surface of the clamping slot, and a flow distribution triangular block is protruded at one end of each triangular block adjacent to the center of the clamping slot.

[0011] As a further improvement of the present application, each pawl comprises a mounting column and a clamping shear, the middle of the mounting column is fixedly installed in the clamping shaft, a limiting block is protruded on the bottom surface of the mounting column, a connecting block is protruded on the top surface of the mounting column, the top end of the connecting block is connected with the clamping shear, each clamping shear comprises two clamping shear handles and a mounting torsion spring, the middle of the mounting torsion spring is installed on the top of the connecting block, the middle of the two clamping shear handles is installed on both ends of the mounting torsion spring, and the middle of the side wall of the flow distribution triangular block is respectively abutted against the inner side wall bottom of the clamping shear handle and the side wall bottom of the connecting block, and a fixing block is protruded on the top of the inner side wall of each clamping shear handle.

[0012] As a further improvement of the present application, each controller comprises a flow guide column, two control sliding columns, two control rotating columns and two control sliding blocks, the flow guide column is made of magnetic material, the top end of the flow guide column is slidably installed on the top of the flow guide hole, the bottom surface of the flow guide column is recessed with a flow distribution surface on both sides, one end of each control sliding column is rotatably installed on both sides of the middle of the flow guide column, the middle of each control sliding column is located in the inclined preset slot, and the diameter of the control sliding column is smaller than the diameter of the inclined preset slot, the other end of each control sliding column is rotatably installed on the middle of the two control rotating columns, the control sliding block is slidably installed in the sliding cavity, and the side wall of the control sliding block is connected with the side wall of the limiting block, the inner middle of the control sliding block is recessed with a sliding slot, and the two ends of the control rotating column are slidably installed in the two side walls of the sliding slot.

[0013] As a further improvement of the present application, the sorting assembly comprises two sorting mounting tables, a sorting mounting plate, a plurality of sorting sliding plates, a plurality of sorting knife plates and a sorting guide plate, the bottom surfaces of the two sorting mounting tables are fixedly mounted on the top surface of the test table away from the vibration table and adjacent to the conveying track, the bottom surfaces of the two sorting mounting tables are connected to the top surfaces of the two sorting mounting tables respectively, the plurality of sorting sliding plates are slidably mounted on the top surface of the sorting mounting plate along the length direction, each of the four corner portions of the top surface of the sorting mounting plate is provided with a sliding column, the four corner portions of the bottom surface of each of the plurality of sorting knife plates are fixedly connected to the top surfaces of the four sliding columns, so that the sorting cavities are formed between the bottom surface of the sorting knife plate and the top surface of the sorting mounting plate, each of the sorting knife plates is provided with a sorting head on the side wall adjacent to the conveying track, one end of the top surface of one of the sorting knife plates is provided with a sorting rod, the other sorting knife plate is arranged opposite to the re-inspection assembly and is made of electromagnetic material, and is electrically connected to the second driving cylinder, and the magnetic poles of the electromagnetic material are the same as those of the flow guide column, one end of the bottom surface of the sorting guide plate is slidably mounted on one end of the top surface of the sorting mounting plate, the other end of the sorting guide plate is mounted on the other end of the sorting mounting plate through the plurality of sorting cavities, and a plurality of reset springs are arranged between the top surface of the sorting guide plate and the top surface of the sorting mounting plate along the length direction.

[0014] As a further improvement of the present application, the screening assembly comprises a defective product screening element and a substandard product screening element, the defective product screening element and the substandard product screening element are fixedly mounted on the top surface of the test table away from the vibration table, and the defective product screening element is arranged adjacent to the re-inspection assembly, the top portions of the defective product screening element and the substandard product screening element are provided with stripping mechanical claws, the middle portions and the bottom portions of the defective product screening element and the substandard product screening element are provided with slides and collection boxes, the stripping mechanical claws are located directly above the conveying track, and the stripping mechanical claws are used for sorting the circuit breakers in the conveying track according to the detection results of the re-inspection assembly and sending the circuit breakers into the slides, and then the circuit breakers fall into the collection boxes, and the top portion of the defective product screening element is further provided with a driven shifting rod, and one end of the driven shifting rod abuts against the top portion of the sorting rod.

[0015] The present application has the following advantages:

[0016] 1. The test table, the material conveying assembly, the electrical variable detection assembly and the re-inspection assembly are used to comprehensively detect and test the circuit breakers, so as to ensure the normal operation and safety of the circuit breakers. The vibration disc, the feeding track, the reversing blocking hook and other devices are cooperated to realize the smooth conveying and positioning of the circuit breakers. The use of the electrical variable detection assembly and the re-inspection assembly can perform dielectric test, short circuit test and re-inspection on the circuit breakers, so as to find and eliminate the abnormal circuit breakers, ensure the product quality and safety, improve the production efficiency, ensure the product quality and safety, and realize automatic production, improve the production efficiency and save the labor cost.

[0017] 2. The use of the re-inspection assembly for more detailed and comprehensive re-inspection of the circuit breaker to ensure that it meets the quality standards and improves the clamping force and stability during clamping and transferring. Through the coordinated action of the first drive cylinder, the second drive cylinder, the pawl clamping box, the pawl and other devices, the clamping and positioning of the circuit breaker can be realized, ensuring that it can be accurately processed during re-inspection, improving product quality, ensuring product safety, and achieving automated re-inspection.

[0018] 3. The use of the re-inspection assembly to make the clamping shear more tightly clamped in the circuit breaker during clamping and transferring to prevent loosening of the circuit breaker during rotation and start-stop of the pawl clamping box. At the same time, the pawl clamping box can also make multiple circuit breakers cool synchronously during rotation to the camera, so as to cool the increased temperature of the circuit breaker during dielectric testing and short-circuit testing, thereby enhancing the accuracy of subsequent circuit breaker re-inspection.

[0019] 4. The use of the re-inspection assembly, the distribution assembly and the screening assembly for multiple detection and sorting of the circuit breaker, effectively improving the quality and reliability of the product, using appearance detection and electrical variable re-inspection to further improve the efficiency of the overall production line and the pass rate of the product. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of an embodiment of the present application.

[0021] Figure 2 is a perspective view of the feed element in an embodiment of the present application.

[0022] Figure 3 is a perspective view of the electrical variable detection assembly in an embodiment of the present application.

[0023] Figure 4 is a perspective view of the re-inspection assembly in an embodiment of the present application.

[0024] Figure 5 is an internal view of the re-inspection assembly in an embodiment of the present application.

[0025] Figure 6 is Figure 5 is a partial enlarged view of position A in FIG.

[0026] Figure 7 is an internal view of the pawl clamping box in an embodiment of the present application.

[0027] Figure 8 is a perspective view of the controller in an embodiment of the present application.

[0028] Figure 9 is a perspective view of the distribution assembly in an embodiment of the present application.

[0029] Figure 10 Figure 1 is a perspective view of a defective product screening element in an embodiment of the present application.

[0030] Figure 1 is a perspective view of a defective product screening element in an embodiment of the present application.

[0031] 10, test table; 11, vibration table;

[0032] 20, feeding assembly; 21, vibration disc; 22, feeding element; 221, feeding track; 222, reversing hook; 223, feeding vertical plate; 224, feeding protrusion; 225, buffer table; 226, buffer column; 227, buffer sliding hole; 228, buffer mounting block; 229, mounting sliding hole; 220, limiting ring; 230, buffer spring; 23, conveying track;

[0033] 30, electrical variable detection assembly; 31, detection frame; 32, guide column; 33, cylinder mounting plate; 34, electrical variable detector; 35, positioning cylinder; 36, detection sliding hole;

[0034] 40, re-inspection assembly; 41, re-inspection mounting frame; 411, first rotating hole; 412, motor mounting plate; 42, re-inspection driving motor; 43, re-inspection mounting plate; 431, re-inspection rotating ring; 432, re-inspection mounting table; 433, clamping element; 434, clamping column; 435, re-inspection clamping groove; 44, re-inspection element; 441, first driving cylinder; 442, driving cylinder mounting plate; 443, second driving cylinder; 444, moving mounting plate; 45, pawl clamping box; 451, flow expansion hole; 452, flow guide hole; 453, flow distribution hole; 454, inclined preset groove; 455, sliding cavity; 456, clamping groove; 457, rotating groove; 458, clamping shaft; 46, pawl; 461, mounting column; 462, clamping scissors; 463, connecting block; 464, clamping scissors handle; 465, mounting torsional spring; 466, fixed block; 467, limiting block; 47, controller; 471, flow guide column; 472, control sliding column; 473, control rotating column; 474, control sliding block; 475, flow distribution surface; 476, sliding groove; 48, sorting group; 481, triangular block; 482, flow distribution triangular block; 49, shooting camera;

[0035] 50, sorting assembly; 51, sorting mounting table; 52, sorting mounting plate; 53, sorting sliding plate; 54, sorting cutter plate; 541, sorting cutter head; 55, sorting guide plate; 56, sliding column; 57, sorting cavity; 59, sorting rod;

[0036] 60, screening assembly; 61, defective product screening element; 62, substandard product screening element; 63, peeling mechanical pawl; 64, slide; 65, collection box; 66, driven pawl rod. DETAILED DESCRIPTION

[0037] For the purpose of promoting an understanding of the application, the application will be described in greater detail below with reference to the drawings. The preferred embodiments of the application are illustrated in the drawings. However, the application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0038] In the description of the present application, it should be noted that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing specific embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0040] Referring to Figures 1 to 10 A circuit breaker testing device, comprising a testing table 10, a feeding assembly 20, an electric variable detection assembly 30, a rechecking assembly 40, a sorting assembly 50 and a screening assembly 60, a vibration table 11 is arranged at one side wall end of the testing table 10, the feeding assembly 20 comprises a vibration disc 21, a feeding element 22 and a conveying track 23, the bottom surface of the vibration disc 21 is fixedly installed on the top surface of the vibration table 11, the feeding element 22 is installed on the top surface of the testing table 10 adjacent to one end of the vibration table 11, and the length direction of the feeding element 22 is perpendicular to the length direction of the testing table 10, the conveying track 23 is fixedly installed on the top surface of the testing table 10, and the length direction of the conveying track 23 is arranged in parallel with the length direction of the testing table 10, the electric variable detection assembly 30 is fixedly installed in the middle part of the testing table 10, and the electric variable detection assembly 30 is located directly above the middle part of the conveying track 23, the sorting assembly 50 and the screening assembly 60 are fixedly installed on the top surface of the testing table 10 away from the vibration table 11 and adjacent to the conveying track 23 from left to right in sequence.

[0041] Referring to Figure 1 , 2The feeding element 22 comprises a feeding track 221, a feeding vertical plate 223, a reversing hook 222, a feeding block 224, a buffer platform 225 and two buffer columns 226. The feeding track 221 is fixedly installed on the top surface of the test table 10 near one end of the vibration table 11, and one end of the feeding track 221 is connected with the output end of the vibration disc 21, and the other end of the feeding track 221 is arranged near the input end of the conveying track 23. The bottom end of the feeding vertical plate 223 is fixedly installed on the top surface of the test table 10 near one end of the vibration table 11. One side wall of the reversing hook 222 is fixedly installed on the top of the side wall of the feeding vertical plate 223 away from the vibration table 11, and the reversing hook 222 is located directly above the input end of the conveying track 23. The side wall of the feeding block 224 is fixedly installed on the end of the inner side wall of the reversing hook 222. The top surface of the feeding block 224 away from one end of the vibration table 11 is respectively penetrated with a buffer sliding hole 227. The bottom surface of the buffer platform 225 is fixedly installed on the middle part of the top surface of the feeding block 224. The buffer installation block 228 is protruded on the top of the side wall of the buffer platform 225 away from the vibration table 11. The top surface of the buffer installation block 228 is respectively penetrated with an installation sliding hole 229. The top part of the two buffer columns 226 is slidingly installed in the two installation sliding holes 229. The middle part of the two buffer columns 226 is slidingly installed in the two buffer sliding holes 227. The middle part of the outer circumferential wall of the two buffer columns 226 is protruded with a limiting ring 220. The buffer spring 230 is arranged between the top surface of the limiting ring 220 and the bottom surface of the buffer installation block 228. The conveying track 23 is provided with a transmission device for conveying and transporting the circuit breaker entering the conveying track 23.

[0042] Please refer to Figure 1 , 3 The electrical variable detection assembly 30 comprises a detection frame 31, four guide columns 32, a cylinder installation plate 33 and an electrical variable detector 34. The detection frame 31 is fixedly installed on the middle part of the top surface of the test table 10. The bottom end of the four guide columns 32 is respectively fixedly installed on the top surface of the four corner parts of the detection frame 31. The bottom surface of the cylinder installation plate 33 is respectively fixedly connected with the top end of the four guide columns 32 at the four corner parts. The top surface of the cylinder installation plate 33 is penetrated with a cylinder installation groove. The cylinder installation groove is provided with a positioning cylinder 35. The top surface of the electrical variable detector 34 is respectively penetrated with a detection sliding hole 36 at the four corner parts. The electrical variable detector 34 is slidingly installed in the four guide columns 32 through the four detection sliding holes 36. The top surface of the electrical variable detector 34 is fixedly connected with the output shaft of the positioning cylinder 35, and the electrical variable detector 34 is located directly above the middle part of the conveying track 23.

[0043] Please refer to Figure 1 and Figures 4-5The reinspection assembly 40 comprises a reinspection mounting frame 41, a reinspection driving motor 42, a reinspection mounting plate 43, two reinspection elements 44 and a shooting camera 49. The bottom surface of the reinspection mounting frame 41 is fixedly installed on the top surface of the test table 10 away from the vibration table 11 and adjacent to the conveying track 23. The two side walls of the reinspection mounting frame 41 are respectively provided with a first rotating hole 411. The top of the side wall of one side of the reinspection mounting frame 41 is provided with an L-shaped motor mounting plate 412. The top of the side wall of one side of the motor mounting plate 412 is provided with a second rotating hole. The reinspection driving motor 42 is fixedly installed on the top of the outer side wall of the motor mounting plate 412. The middle part of the two side walls of the reinspection mounting plate 43 is respectively provided with a reinspection rotating ring 431. The two reinspection rotating rings 431 are respectively rotatably installed in the two first rotating holes 411. The output shaft of the reinspection driving motor 42 is fixedly connected to the outer side wall of one of the reinspection rotating rings 431 through the second rotating hole. The top surface and the bottom surface of the reinspection mounting plate 43 are respectively provided with a reinspection mounting table 432. The two reinspection elements 44 are respectively fixedly installed on the ends of the two reinspection mounting tables 432 in a circumferential array. The two sides of the reinspection mounting plate 43 are respectively provided with a clamping element 433. One end of each clamping element 433 is fixedly installed on the top of the side wall of one side of the reinspection mounting plate 43 or the bottom of the side wall of the other side. Each clamping element 433 comprises a plurality of clamping columns 434. One end of each clamping column 434 is fixedly installed on the side wall of the reinspection mounting plate 43 along the length direction of the reinspection mounting plate 43. The two side walls of each clamping column 434 are respectively provided with a reinspection clamping groove 435. The bottom surface of the shooting camera 49 is fixedly installed on the top surface of the test table 10 away from the vibration table 11 and directly above the reinspection elements 44 away from the conveying track 23.

[0044] Please refer to Figures 4-5 Each reinspection element 44 comprises a first driving air cylinder 441, a driving air cylinder mounting plate 442, a second driving air cylinder 443, a moving mounting plate 444, a pawl clamping box 45 and a plurality of controllers 47. The bottom of the first driving air cylinder 441 is fixedly installed on the end of the reinspection mounting table 432. The inner side wall of the driving air cylinder mounting plate 442 is fixedly installed on the output shaft of the first driving air cylinder 441. The side wall of one side of the second driving air cylinder 443 is fixedly installed on the outer side wall of the driving air cylinder mounting plate 442. The top surface of the moving mounting plate 444 is fixedly installed on the output shaft of the second driving air cylinder 443. The inner side wall of the pawl clamping box 45 is fixedly installed on the outer side wall bottom of the moving mounting plate 444. The plurality of controllers 47 are arranged in the pawl clamping box 45 along the length direction.

[0045] Please refer to Figures 4-7, each of the plurality of flow expansion holes 451 is provided with a guide hole 452 at an end face thereof, the inner side wall of the pawl clamping box 45 is provided with a plurality of flow distribution holes 453 which are equidistantly spaced apart along a length direction and which are respectively communicated with the plurality of guide holes 452, each of the flow distribution holes 453 is provided with an inclined preset groove 454 at two ends thereof, each of the inclined preset grooves 454 is provided with a sliding cavity 455 at an end thereof away from the flow distribution hole 453, both sides of the pawl clamping box 45 away from the flow expansion holes 451 are provided with a plurality of clamping grooves 456 which are equidistantly spaced apart along the length direction, the bottom of each of the clamping grooves 456 is communicated with the sliding cavity 455, the top surface and the bottom surface of the end wall of each of the clamping grooves 456 are provided with a rotating groove 457 at a corner portion thereof, the clamping shaft 458 is rotatably arranged at the middle portion of the side wall of each of the clamping grooves 456, and the clamping shaft 458 is provided with a torsion spring at two ends thereof which is connected to the side wall of the clamping groove 456, each of the clamping shafts 458 is provided with a pawl 46, and the top portion of each of the clamping grooves 456 is provided with a distribution group 48, each of the distribution groups 48 comprises four triangular blocks 481 which are oppositely arranged, and the four triangular blocks 481 are respectively located directly above the four corner portions of the top surface of the clamping groove 456, and each of the triangular blocks 481 is provided with a flow distribution triangular block 482 at an end thereof adjacent to the center of the clamping groove 456.

[0046] Please refer to Figures 4-7 , each of the pawls 46 comprises a mounting column 461 and a clamping shear 462, the mounting column 461 is fixedly installed in the middle portion of the clamping shaft 458, the bottom surface of the mounting column 461 is provided with a limiting block 467, and the top surface of the mounting column 461 is provided with a connecting block 463, the top end of the connecting block 463 is connected to the clamping shear 462, each of the clamping shears 462 comprises two clamping shear handles 464 and a mounting torsion spring 465, the mounting torsion spring 465 is installed at the top portion of the connecting block 463, the two clamping shear handles 464 are installed at two ends of the mounting torsion spring 465, and the middle portions of the side walls of the flow distribution triangular block 482 are respectively abutted against the bottom portions of the inner side walls of the clamping shear handles 464 and the side wall of the connecting block 463, and the top portion of the inner side wall of each of the clamping shear handles 464 is provided with a fixing block 466.

[0047] Please refer to Figure 6 , 8Each controller 47 comprises a flow guide column 471 made of magnetic material, the flow guide column 471 is slidingly installed at the top of the flow guide hole 452, the bottom surface of the flow guide column 471 is recessed with two flow distribution surfaces 475 on both sides, two control sliding columns 472 are rotatably installed at the middle of the flow guide column 471 on both sides, the middle of the control sliding column 472 is located in the inclined preset slot 454, and the diameter of the control sliding column 472 is smaller than the diameter of the inclined preset slot 454, the other end of the control sliding column 472 is rotatably installed in the middle of the two control rotating columns 473, the control sliding block 474 is slidingly installed in the sliding cavity 455, and one side wall of the control sliding block 474 is connected with the side wall of the limiting block 467, the inner side of the control sliding block 474 is recessed with a sliding groove 476, and the two ends of the control rotating column 473 are slidingly installed in the side walls of the sliding groove 476 on both sides.

[0048] Please refer to Figure 1 , 9 The distribution assembly 50 comprises two distribution installation tables 51, a distribution installation plate 52, a plurality of distribution sliding plates 53, a plurality of distribution knife plates 54, and a distribution guide plate 55. The bottom surface of the two distribution installation tables 51 is fixedly installed on the top surface of the test table 10 away from the vibration table 11 and adjacent to the conveying track 23. The bottom surface of the distribution installation plate 52 is connected with the top surface of the two distribution installation tables 51 on both ends respectively. The plurality of distribution sliding plates 53 are slidingly installed on the top surface of the distribution installation plate 52 along the length direction. The top surface of each distribution installation plate 52 is protruded with a sliding column 56 at four corner parts respectively. The bottom surface of the plurality of distribution knife plates 54 is fixedly connected with the top surface of the four sliding columns 56 at four corner parts respectively, so that the distribution cavity 57 is formed between the bottom surface of the distribution knife plate 54 and the top surface of the distribution installation plate 52. Each distribution knife plate 54 is provided with a distribution knife head 541 on the side wall adjacent to the conveying track 23. One end of the top surface of one of the distribution knife plates 54 is protruded with a distribution rod 59. The other distribution knife plate 54 is arranged opposite to the re-inspection assembly 40 and is made of electromagnetic material. The other distribution knife plate 54 is electrically connected with the second driving cylinder 443. The magnetic pole of the electromagnetic material of the other distribution knife plate 54 is the same as that in the flow guide column 471. One end of the bottom surface of the distribution guide plate 55 is slidingly installed on one end of the top surface of the distribution installation plate 52. The other end of the distribution guide plate 55 is installed on the other end of the distribution installation plate 52 through the plurality of distribution cavities 57. A plurality of reset springs are arranged along the length direction between the top surface of the distribution guide plate 55 and the top surface of the distribution installation plate 52.

[0049] Please refer to Figure 1 , 10The screening assembly 60 includes a defective product screening element 61 and a substandard product screening element 62, both of which are fixedly installed on the top surface of the test table 10 away from the vibration table 11, and the defective product screening element 61 is arranged adjacent to the re-inspection assembly 40. The top of the defective product screening element 61 and the substandard product screening element 62 is provided with a stripping mechanical claw 63, and the middle and bottom of the defective product screening element 61 and the substandard product screening element 62 are provided with a slide 64 and a collection box 65. The stripping mechanical claw 63 is located directly above the conveying track 23, and is used to sort the circuit breakers in the conveying track 23 according to the detection results of the re-inspection assembly 40 and send them into the slide 64, and then fall into the collection box 65. The top of the defective product screening element 61 is further provided with a driven shifting rod 66, one end of which abuts against the top of the shifting rod 59.

[0050] For example, in an embodiment: when it is necessary to inspect the circuit breakers, a plurality of circuit breakers are placed into the vibration disc 21, and the vibration disc 21 is started, which positions and sends the plurality of circuit breakers into the feeding track 221 in parallel. When the plurality of circuit breakers in parallel move along the feeding track 221 to the end of the reversing hook 222, the top of the circuit breaker at the end of the feeding track 221 away from the vibration disc 21 will impact the top of the two buffer columns 226, so that the two buffer columns 226 are impacted to slide upward along the two buffer sliding holes 227 and compress the buffer springs 230, providing a buffer for the circuit breaker to reduce the conveying speed, and then the circuit breaker will be guided by the reversing hook 222 to fall smoothly into the top of the conveying track 23 adjacent to the vibration disc 21, and then follow the transmission of the conveying track 23 into the subsequent detection components for detection of the circuit breaker.

[0051] When the circuit breaker is conveyed to the electrical variable detection assembly 30 along the conveying track 23, the positioning cylinder 35 will be started, so that the output shaft of the positioning cylinder 35 extends, and the electrical variable detector 34 falls along the four guide columns 32 in parallel until the electrical needle interface on the electrical variable detector 34 is connected to the interface of the plurality of circuit breakers on the conveying track 23. Then the electrical variable detector 34 will be started to perform dielectric test and short circuit test on the circuit breaker, so that the knife switch in the normal circuit breaker will be tripped and closed, while the knife switch in the abnormal circuit breaker will remain open. Then the positioning cylinder 35 will be reversed to send the circuit breaker after dielectric test and short circuit test into the re-inspection assembly 40.

[0052] When the circuit breaker is sent into the re-inspection assembly 40, the first drive cylinder 441 will start, so that the output shaft of the first drive cylinder 441 extends, so that the drive cylinder mounting plate 442 follows to move to one end of the conveying track 23, until the pawl clamping box 45 is moved to above the conveying track 23, then the second drive cylinder 443 will start to extend, so that the moving mounting plate 444 follows to fall, and the pawl clamping box 45 synchronously follows to fall, so that the plurality of pawls 46 in the pawl clamping box 45 will follow to fall, when the plurality of pawls 46 falls, the bottom of the plurality of pawls 46 on both sides of the pawl clamping box 45 will abut against the top of the plurality of circuit breakers, and due to the continuous falling of the pawl clamping box 45, the pawls 46 will rotate open to the outside of the pawl clamping box 45 around the clamping shaft 458, when the pawls 46 are selectively opened to the outside, the clamping shears 462 will follow to move to the outside, since two diversion triangular blocks 482 are arranged on both sides of the clamping shears 462, and the side walls on both sides of the diversion triangular blocks 482 abut against the inside side wall bottom of the clamping shear handle 464 and the side wall bottom of one side of the connecting block 463 respectively, when the clamping shears 462 follow to move to the outside, due to the limitation of the diversion triangular blocks 482, the two clamping shear handles 464 will rotate open to both sides around the mounting torsional spring 465, until the inside side wall bottom of the clamping shear handle 464 and the side wall bottom of one side of the connecting block 463 abut against the outside end of the side walls on both sides of the triangular block 481, at this time, the two clamping shear handles 464 will be opened to the maximum amplitude, at this time, the top of the two pawls 46 will abut against the two ends of the circuit breaker, then the second drive cylinder 443 will be reversely started, so that the output shaft of the second drive cylinder 443 retracts, so that the pawl clamping box 45 will follow to move upwards, so that the two pawls 46 located at both ends of the circuit breaker will be selectively inward around the clamping shaft 458 under the action of the torsional spring, so as to clamp the circuit breaker, at the same time, the two clamping shear handles 464 will move to the inside of the mounting torsional spring 465 around the mounting torsional spring 465, so that the fixed block 466 in the clamping shear handle 464 will be clamped in the groove at both ends of the circuit breaker, further improving the clamping force and stability, then the first drive cylinder 441 will be reversely started for resetting, and the plurality of circuit breakers will be clamped between the re-inspection clamping grooves 435 of the plurality of clamping columns 434 by the plurality of pawls 46, further improving the stability, then the re-inspection drive motor 42 will be started, so that the re-inspection mounting plate 43 rotates around the first rotating hole 411, so that the re-inspection element 44 adjacent to the conveying track 23 will follow to rotate to directly below the shooting camera 49, so as to perform short-circuit re-measurement and appearance detection on the plurality of circuit breakers in the re-inspection element 44.

[0053] For example, in an embodiment: when the second drive cylinder 443 is activated in reverse, through the electrical connection, the one of the distribution blade 54 which is arranged opposite to the re-inspection assembly 40 will be activated to generate magnetism, and due to the magnetic poles of the electromagnetic material thereof being the same as the magnetic poles in the flow guide column 471, the flow guide column 471 adjacent to the transmission rail 23 will be attracted by the magnetic force to move upwards along the flow guide hole 452, so that the two control sliding columns 472 follow to move upwards, so that the two control rotating columns 473 follow to move outwards of the pawl clamping box 45, so that the two control sliding blocks 474 follow to move outwards of the pawl clamping box 45 along the sliding cavity 455, so that the limiting block 467 follows to move outwards of the pawl clamping box 45, so that the mounting column 461 further rotates around the clamping shaft 458, so that the clamping shear 462 is more tightly clamped in the circuit breaker, until the second drive cylinder 443 and the first drive cylinder 441 complete the resetting, at this time, the distribution blade 54 will be disconnected.

[0054] When the re-inspection drive motor 42 is activated, the re-inspection mounting plate 43 will rotate around the first rotating hole 411, so that the two re-inspection elements 44 follow to rotate, when the pawl clamping box 45 rotates, the surrounding gas will enter the pawl clamping box 45 through the plurality of flow expansion holes 451, so that uniform temperature airflow is formed in the flow expansion hole 451, the uniform temperature airflow will impact the flow guide column 471 along the flow guide hole 452, so that the flow guide column 471 moves along the flow guide hole 452 away from one end of the flow expansion hole 451, and then repeats the above action process, so that the clamping shear 462 is more tightly clamped in the circuit breaker, preventing loosening of the circuit breaker during rotation and start-stop of the pawl clamping box 45, at the same time, the pawl clamping box 45 clamps a plurality of circuit breakers to rotate to the shooting camera 49, which can also make the plurality of circuit breakers be synchronized to cool down during the process, to cool down the temperature of the circuit breaker increased during dielectric test and short circuit test, to enhance the accuracy of subsequent circuit breaker re-inspection.

[0055] For example, in an embodiment: when the circuit breaker is transferred to directly below the shooting camera 49, the appearance detection of the plurality of circuit breakers in the re-inspection element 44 is performed, and the short circuit re-inspection of the abnormal circuit breaker that keeps the handle switch in the open state in the electrical variable detector 34 detection is performed, after the re-inspection is completed, the re-inspection driving motor 42, the second driving cylinder 443 and the first driving cylinder 441 are continued to be started, so that the plurality of circuit breakers are sent back to the conveying track 23 and are subsequently driven, in the subsequent driving process, the sorting assembly 50 sorts the plurality of circuit breakers on the conveying track 23, when the sorting cutter head 541 abuts against the abnormal circuit breaker that is still in the open state of the handle switch, the handle switch moves the sorting cutter head 541 away from the shooting camera 49 side, so that the sorting cutter plate 54 moves, so that the sorting slide plate 53 moves, so that the sorting guide plate 55 moves, and then the plurality of sorting cutter plates 54 move, so that the sorting rod 59 moves, so that the sorting rod 59 no longer abuts against the driven sorting rod 66, and then the stripping mechanical claw 63 of the defective product screening element 61 is started, the abnormal circuit breaker that is still in the open state of the handle switch is sent into the slide 64 above the stripping mechanical claw 63 and falls into the collection box 65, and the defective product screening element 62 sorts the circuit breaker that has appearance defects or normal circuit breaker after short circuit re-inspection according to the shooting result of the shooting camera 49, enters the collection box 65 of the defective product screening element 62, and the circuit breaker that has normal appearance and is normal in the electrical variable detector 34 detection is sent out of the test device through the conveying track 23 away from the one end of the vibration table 11, and is collected into the warehouse, to complete the multiple detection and sorting of the circuit breaker sent into the test device.

[0056] The installation process is as follows: the bottom surface of the vibration disc 21 is fixedly installed on the top surface of the vibration table 11, the conveying track 23 is fixedly installed on the top surface of the test table 10, the feeding track 221 is fixedly installed on the top surface of the test table 10 adjacent to one end of the vibration table 11, one end of the feeding track 221 is connected with the output end of the vibration disc 21, the other end of the feeding track 221 is arranged adjacent to the input end of the conveying track 23, the bottom end of the feeding vertical plate 223 is fixedly installed on the top surface of the test table 10 adjacent to one end of the vibration table 11, one side wall of the reversing blocking hook 222 is fixedly installed on the top of the side wall away from the vibration table 11 of the feeding vertical plate 223, and the reversing blocking hook 222 is located directly above the input end of the conveying track 23, the side wall of the feeding protrusion 224 is fixedly installed on the inner side wall end of the reversing blocking hook 222, the bottom surface of the buffer table 225 is fixedly installed on the top surface of the feeding protrusion 224, the top parts of the two buffer columns 226 are slidingly installed in the two installation sliding holes 229, the middle parts of the two buffer columns 226 are slidingly installed in the two buffer sliding holes 227, the detection frame 31 is fixedly installed on the middle part of the top surface of the test table 10, the bottom ends of the four guide columns 32 are respectively fixedly installed at the four corner parts of the top surface of the detection frame 31, the bottom surface of the cylinder installation plate 33 is respectively fixedly connected with the top ends of the four guide columns 32, the electric variable detector 34 is slidingly installed in the four guide columns 32 through the four detection sliding holes 36, the top surface of the electric variable detector 34 is fixedly connected with the output shaft of the positioning cylinder 35, and the electric variable detector 34 is located directly above the middle part of the conveying track 23, the bottom surfaces of the re-inspection installation frames 41 are fixedly installed on the top surface of the test table 10 away from one end of the vibration table 11 and adjacent to the conveying track 23, the re-inspection driving motor 42 is fixedly installed on the top of the outer side wall of the motor installation plate 412, the two re-inspection rotating rings 431 are respectively rotatably installed in the two first rotating holes 411, and the output shaft of the re-inspection driving motor 42 is fixedly connected with the outer side wall of one of the re-inspection rotating rings 431 through the second rotating hole, a plurality of clamping columns 434 are fixedly installed on the side wall of the re-inspection installation plate 43 at equal intervals along the length direction of the re-inspection installation plate 43, the bottom surface of the shooting camera 49 is fixedly installed on the top surface of the test table 10 away from one end of the vibration table 11 and located directly above the re-inspection element 44 away from the conveying track 23, the bottom part of the first driving cylinder 441 is fixedly installed on the end part of the re-inspection installation table 432, the inner side wall of the driving cylinder installation plate 442 is fixedly installed on the output shaft of the first driving cylinder 441, one side wall of the second driving cylinder 443 is fixedly installed on the outer side wall of the driving cylinder installation plate 442, the top surface of the moving installation plate 444 is fixedly installed on the output shaft of the second driving cylinder 443, the inner side wall of the pawl clamping box 45 is fixedly installed on the bottom part of the outer side wall of the moving installation plate 444, the middle part of the installation column 461 is fixedly installed in the clamping shaft 458, the middle part of the installation torsional spring 465 is installed on the top part of the connecting block 463, the middle parts of the two clamping shear handles 464 are installed on the two ends of the installation torsional spring 465, and the middle parts of the two sides of the shunt triangular block 482 are respectively abutted on the inner side wall bottom part of the clamping shear handle 464 and the side wall bottom part of the connecting block 463.The top end of the flow guide column 471 is slidingly installed at the top of the flow guide hole 452, two control sliding columns 472 are rotatably installed at the middle of the flow guide column 471 on both sides, the other end of the two control sliding columns 472 is rotatably installed in the middle of the two control rotating columns 473, the control sliding block 474 is slidingly installed in the sliding cavity 455, and the side wall of the control sliding block 474 is connected with the side wall of the limiting block 467, the control rotating column 473 is slidingly installed in the sliding groove 476 on both sides, the bottom surface of the two separate installation tables 51 is fixedly installed on the top surface of the test table 10 away from the vibration table 11 and adjacent to the conveying track 23, the bottom surface of the two separate installation plates 52 is connected with the top surface of the two separate installation tables 51, a plurality of separate sliding plates 53 are slidingly installed on the top surface of the separate installation plate 52 along the length direction, the bottom surface of the separate guide plate 55 is slidingly installed at one end of the top surface of the separate installation plate 52, and the other end of the separate guide plate 55 is installed at the other end of the separate installation plate 52 through a plurality of separate cavities 57, the defective product screening element 61 and the substandard product screening element 62 are fixedly installed on the top surface of the test table 10 away from the vibration table 11, and the defective product screening element 61 is arranged adjacent to the reinspection assembly 40, and the end of the driven shifting rod 66 abuts against the top of the shifting rod 59.

[0057] The present application can realize:

[0058] 1. The test table 10, the material conveying assembly 20, the electric variable detection assembly 30 and the reinspection assembly 40 are used to comprehensively detect and test the circuit breaker, so as to ensure its normal operation and safety. Through the cooperation of the vibration disc 21, the feeding track 221, the reversing hook 222 and other equipment, the smooth conveying and positioning of the circuit breaker can be realized. The use of the electric variable detection assembly 30 and the reinspection assembly 40 can perform dielectric test, short circuit test and reinspection on the circuit breaker, so as to find and exclude abnormal circuit breakers, ensure product quality and safety, improve production efficiency, ensure product quality and safety, and realize automatic production, improve production efficiency and save labor cost.

[0059] 2. The reinspection assembly 40 is used to more carefully and comprehensively reinspect the circuit breaker, so as to ensure that it meets the quality standards and improves the clamping force and the stability during clamping and transferring. Through the cooperation of the first driving cylinder 441, the second driving cylinder 443, the claw clamping box 45, the claw 46 and other equipment, the clamping and positioning of the circuit breaker can be realized, so as to ensure that it can be accurately processed during the reinspection process, improve product quality, ensure product safety, and realize automatic reinspection.

[0060] 3. The use of the re-inspection assembly 40 enables the clamping shears 462 to be more tightly clamped in the circuit breaker to prevent loosening of the circuit breaker during rotation and starting and stopping of the pawl clamping box 45, and during rotation of the pawl clamping box 45 clamping multiple circuit breakers to the camera 49, the multiple circuit breakers can be simultaneously cooled to reduce the temperature of the circuit breaker during dielectric testing and short circuit testing, thereby enhancing the accuracy of subsequent circuit breaker re-inspection.

[0061] 4. The use of the re-inspection assembly 40, the sorting assembly 50 and the screening assembly 60 to perform multiple detection and sorting on the circuit breaker effectively improves the quality and reliability of the product, and the use of appearance detection and electrical variable re-inspection further improves the efficiency of the overall production line and the pass rate of the product.

[0062] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application. Therefore, the scope of protection of the patent of the present application should be subject to the appended claims.

Claims

1. A circuit breaker testing device characterized by: Including test platform (10), feed assembly (20), electric variable detection assembly (30), recheck assembly (40), distribution assembly (50) and screening assembly (60); The test platform (10) is provided with a vibrating table (11) at one side wall end; The feed assembly (20) includes a vibrating disc (21), a feeding element (22) and a conveying track (23), the bottom surface of the vibrating disc (21) is fixedly installed on the top surface of the vibrating table (11), the feeding element (22) is installed on the top surface of the test platform (10) adjacent to one end of the vibrating table (11), and the length direction of the feeding element (22) is perpendicular to the length direction of the test platform (10), the conveying track (23) is fixedly installed on the top surface of the test platform (10), and the length direction of the conveying track (23) is parallel to the length direction of the test platform (10); The electric variable detection assembly (30) is fixedly installed on the middle part of the test platform (10), and the electric variable detection assembly (30) is located directly above the middle part of the conveying track (23); The recheck assembly (40) and the screening assembly (60) are fixedly installed on the top surface of the test platform (10) away from the vibrating table (11) from left to right, and are both arranged adjacent to the conveying track (23), the distribution assembly (50) is fixedly installed on the top surface of the test platform (10) away from the vibrating table (11) and is arranged opposite to the recheck assembly (40) and the screening assembly (60), the recheck assembly (40) is used for short circuit rechecking and appearance detection on the circuit breaker after detection of the electric variable detection assembly (30), the distribution assembly (50) is used for identifying and positioning the circuit breaker after rechecking of the recheck assembly (40), and the screening assembly (60) is used for sorting and collecting the circuit breaker after rechecking of the recheck assembly (40). The feeding element (22) comprises a feeding track (221), a feeding vertical plate (223), a reversing hook (222), a feeding protrusion (224), a buffer platform (225) and two buffer columns (226), the feeding track (221) is fixedly installed on the top surface of the test table (10) near one end of the vibration table (11), and one end of the feeding track (221) is connected with the output end of the vibration disc (21), and the other end of the feeding track (221) is arranged near the input end of the conveying track (23), the bottom end of the feeding vertical plate (223) is fixedly installed on the top surface of the test table (10) near one end of the vibration table (11), one side wall of the reversing hook (222) is fixedly installed on the top of the side wall away from the vibration table (11) of the feeding vertical plate (223), and the reversing hook (222) is located directly above the input end of the conveying track (23), the side wall of the feeding protrusion (224) is fixedly installed on the end of the inner side wall of the reversing hook (222), and the top surface of the feeding protrusion (224) is recessed with buffer sliding holes (227) on both sides away from one end of the vibration table (11), the bottom surface of the buffer platform (225) is fixedly installed on the top surface of the feeding protrusion (224), the buffer installation block (228) is protruded on the top of the side wall away from the vibration table (11) of the buffer platform (225), the top surface of the buffer installation block (228) is recessed with installation sliding holes (229) on both ends, the top of the two buffer columns (226) is slidably installed in the two installation sliding holes (229), the middle of the two buffer columns (226) is slidably installed in the two buffer sliding holes (227), the middle of the outer circumferential wall of the two buffer columns (226) is protruded with a limiting ring (220), the top surface of the two limiting rings (220) and the bottom surface of the buffer installation block (228) are provided with buffer springs (230) between both ends, and the conveying track (23) is provided with a transmission device for conveying and transporting the circuit breaker entering the conveying track (23).

2. The circuit breaker testing device of claim 1, wherein: The electric variable detection assembly (30) comprises a detection frame (31), four guide columns (32), a cylinder mounting plate (33) and an electric variable detector (34), the detection frame (31) is fixedly installed on the top surface of the test table (10), the bottom ends of the four guide columns (32) are fixedly installed on the top surface of the detection frame (31) at four corner positions, the bottom surface of the cylinder mounting plate (33) is fixedly connected with the top ends of the four guide columns (32) at four corner positions, the top surface of the cylinder mounting plate (33) is recessed with a cylinder mounting groove, the cylinder mounting groove is provided with a positioning cylinder (35), the top surface of the electric variable detector (34) is recessed with detection sliding holes (36) at four corner positions, the electric variable detector (34) is slidably installed in the four guide columns (32) through the four detection sliding holes (36), the top surface of the electric variable detector (34) is fixedly connected with the output shaft of the positioning cylinder (35), and the electric variable detector (34) is located directly above the middle of the conveying track (23).

3. The circuit breaker testing device of claim 2, wherein: The reinspection assembly (40) comprises a reinspection mounting frame (41), a reinspection driving motor (42), a reinspection mounting plate (43), two reinspection elements (44) and a shooting camera (49), the bottom surface of the reinspection mounting frame (41) is fixedly installed on the top surface of the test table (10) away from the vibration table (11) and is arranged adjacent to the conveying track (23), the two side walls of the reinspection mounting frame (41) are respectively penetrated by the first rotating holes (411) arranged in recesses, the top of the one side wall of the reinspection mounting frame (41) is protrudingly provided with an "L"-shaped motor mounting plate (412), the top of the one side wall of the motor mounting plate (412) is penetrated by the second rotating hole arranged in a recess, the reinspection driving motor (42) is fixedly installed on the top of the outer side wall of the motor mounting plate (412), the middle parts of the two side walls of the reinspection mounting plate (43) are respectively protrudingly provided with reinspection rotating rings (431), the two reinspection rotating rings (431) are respectively rotatably installed in the two first rotating holes (411), and the output shaft of the reinspection driving motor (42) is fixedly connected with the outer side wall of one of the reinspection rotating rings (431) by penetrating through the second rotating hole, the top surface and the bottom surface of the reinspection mounting plate (43) are respectively protrudingly provided with reinspection mounting tables (432), the two reinspection elements (44) are respectively fixedly installed on the end parts of the two reinspection mounting tables (432) in a circumferential array, the two sides of the reinspection mounting plate (43) are respectively provided with clamping elements (433), one end of each of the two clamping elements (433) is fixedly installed on the top of the one side wall or the bottom of the other side wall of the reinspection mounting plate (43), each clamping element (433) comprises a plurality of clamping columns (434), one end of each of the plurality of clamping columns (434) is fixedly installed on the side wall of the reinspection mounting plate (43) at equal intervals along the length direction of the reinspection mounting plate (43), and the two side walls of each clamping column (434) are respectively recessed with reinspection clamping grooves (435), and the bottom surface of the shooting camera (49) is fixedly installed on the top surface of the test table (10) away from the vibration table (11) and directly above the reinspection elements (44) away from the conveying track (23).

4. The circuit breaker testing device of claim 3, wherein: Each reinspection element (44) comprises a first driving air cylinder (441), a driving air cylinder mounting plate (442), a second driving air cylinder (443), a moving mounting plate (444), a pawl clamping box (45) and a plurality of controllers (47), the bottom of the first driving air cylinder (441) is fixedly installed on the end part of the reinspection mounting table (432), the inner side wall of the driving air cylinder mounting plate (442) is fixedly installed on the output shaft of the first driving air cylinder (441), the one side wall of the second driving air cylinder (443) is fixedly installed on the outer side wall of the driving air cylinder mounting plate (442), the top surface of the moving mounting plate (444) is fixedly installed on the output shaft of the second driving air cylinder (443), the inner side wall of the pawl clamping box (45) is fixedly installed on the bottom of the outer side wall of the moving mounting plate (444), and the plurality of controllers (47) are arranged in the pawl clamping box (45) at intervals along the length direction.

5. The circuit breaker testing device of claim 4, wherein: The middle part of the top surface or the bottom surface of each said claw clamping box (45) is recessed with a plurality of flow expansion holes (451) equidistantly spaced along the length direction, the end surface of each flow expansion hole (451) is recessed with a flow guide hole (452), the inner side wall of the claw clamping box (45) is recessed with a plurality of flow distribution holes (453) equidistantly spaced along the length direction, the plurality of flow distribution holes (453) are respectively communicated with the plurality of flow guide holes (452), the two ends of each flow distribution hole (453) are respectively recessed with an inclined preset slot (454), the end away from the flow distribution hole (453) of each inclined preset slot (454) is recessed with a sliding cavity (455), the two sides of the side away from the flow expansion hole (451) of the claw clamping box (45) are recessed with a plurality of clamping grooves (456) equidistantly along the length direction, the bottom of each clamping groove (456) is communicated with the sliding cavity (455), the top surface and the bottom surface of the end wall of each clamping groove (456) are recessed with a rotating groove (457) at the corner, the middle part of the side wall of each clamping groove (456) is rotatably provided with a clamping shaft (458), and the two ends of the clamping shaft (458) are provided with torsional springs connected with the side wall of the clamping groove (456), each clamping shaft (458) is provided with a claw (46), and each clamping groove (456) is provided with a distribution group (48), each distribution group (48) includes four triangular blocks (481) oppositely arranged, and the four triangular blocks (481) are respectively located above the four corners of the top surface of the clamping groove (456), and each triangular block (481) is protruded with a flow distribution triangular block (482) adjacent to one end of the clamping groove (456).

6. The circuit breaker testing device of claim 5, wherein: Each said claw (46) includes a mounting column (461) and a clamping shear (462), the middle part of the mounting column (461) is fixedly installed in the clamping shaft (458), the bottom surface of the mounting column (461) is protruded with a limiting block (467), the top surface of the mounting column (461) is protruded with a connecting block (463), the top end of the connecting block (463) is connected with the clamping shear (462), each clamping shear (462) includes two clamping shear handles (464) and an installation torsional spring (465), the middle part of the installation torsional spring (465) is installed on the top of the connecting block (463), the middle part of the two clamping shear handles (464) is installed on the two ends of the installation torsional spring (465), and the middle part of the two side walls of the flow distribution triangular block (482) is respectively abutted to the bottom of the inner side wall of the clamping shear handle (464) and the bottom of the side wall of the connecting block (463), and the top of the inner side wall of each clamping shear handle (464) is protruded with a fixed block (466).

7. The circuit breaker testing device of claim 6, wherein: Each of the controllers (47) comprises a flow guide column (471), two control sliding columns (472), two control rotating columns (473) and two control sliding blocks (474), the flow guide column (471) is made of magnetic material, the top end of the flow guide column (471) is slidingly installed on the top of the flow guide hole (452), the bottom surface of the flow guide column (471) is recessed with a flow distribution surface (475) on both sides, one end of each of the two control sliding columns (472) is rotatably installed on the two sides of the middle part of the flow guide column (471), the middle part of the two control sliding columns (472) is located in the inclined preset slot (454), and the diameter of the control sliding column (472) is smaller than the diameter of the inclined preset slot (454), the other end of the two control sliding columns (472) is rotatably installed in the middle part of the two control rotating columns (473), the control sliding block (474) is slidingly installed in the sliding cavity (455), one side wall of the control sliding block (474) is connected with the side wall of the limiting block (467), the inner side of the control sliding block (474) is recessed with a sliding groove (476), and the two ends of the control rotating column (473) are slidingly installed in the side walls of the sliding groove (476) on both sides.

8. The circuit breaker testing device of claim 7, wherein: The distribution assembly (50) comprises two distribution mounting tables (51), a distribution mounting plate (52), a plurality of distribution sliding plates (53), a plurality of distribution cutter plates (54) and a distribution guide plate (55), the bottom surfaces of the two distribution mounting tables (51) are fixedly installed on the top surface of the test table (10) away from one end of the vibration table (11) and adjacent to the conveying track (23), the bottom surfaces of the two distribution mounting tables (51) are connected with the top surfaces of the two distribution mounting tables (51), respectively, a plurality of distribution sliding plates (53) are slidingly installed on the top surface of the distribution mounting plate (52) along the length direction, sliding columns (56) are protruded at the four corner portions of the top surface of each distribution mounting plate (52), respectively, the bottom surfaces of a plurality of distribution cutter plates (54) are fixedly connected with the top surfaces of the four sliding columns (56) at the four corner portions, respectively, so that the distribution cavities (57) are formed between the bottom surfaces of the distribution cutter plates (54) and the top surface of the distribution mounting plate (52), each of the distribution cutter plates (54) is provided with a distribution cutter head (541) on the side wall adjacent to the conveying track (23), one end of the top surface of one of the distribution cutter plates (54) is protruded with a distribution rod (59), the other distribution cutter plate (54) is arranged opposite to the reinspection assembly (40) and is made of electromagnetic material, and is electrically connected with the second driving cylinder (443), and the magnetic poles of the electromagnetic material are the same as those in the flow guide column (471), one end of the bottom surface of the distribution guide plate (55) is slidingly installed on one end of the top surface of the distribution mounting plate (52), the other end of the distribution guide plate (55) penetrates through a plurality of distribution cavities (57) and is installed on the other end of the distribution mounting plate (52), and a plurality of reset springs are arranged between the top surface of the distribution guide plate (55) and the top surface of the distribution mounting plate (52) along the length direction.

9. The circuit breaker testing device of claim 8, wherein: The screening assembly (60) comprises a defective product screening element (61) and a substandard product screening element (62), both of which are fixedly installed on the top surface of the test table (10) away from the vibration table (11), and the defective product screening element (61) is arranged adjacent to the rechecking assembly (40); the top of the defective product screening element (61) and the substandard product screening element (62) is provided with a stripping mechanical claw (63); the middle and bottom of the defective product screening element (61) and the substandard product screening element (62) are provided with a slide (64) and a collection box (65); the stripping mechanical claw (63) is located directly above the conveying track (23); the stripping mechanical claw (63) is used for sorting the circuit breaker in the conveying track (23) according to the detection result of the rechecking assembly (40) and sending it into the slide (64), and then falling into the collection box (65); the top of the defective product screening element (61) is further provided with a driven shifting rod (66), one end of the driven shifting rod (66) abutting against the top of the shifting rod (59).

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