Bending resilience performance testing device for electrical connection plug connector of electrical box

Abstract

The invention relates to the technical field of springback testing, and provides an electrical box electrical connection plug connector bending springback performance testing device, which comprises a driving module, a clamping assembly, a horizontal moving assembly, a pressure applying transmission mechanism, a testing reset mechanism and a displacement sensor, and is characterized in that the pressure applying transmission mechanism comprises a transmission assembly and a pressure applying assembly; the pressure applying assembly comprises a cam, a first profiling guide rail, a second profiling guide rail, a first steering guide rail and a second steering guide rail, the test reset mechanism comprises a movable jacking assembly, an inserting assembly and a pressing reset assembly, and the movable jacking assembly comprises a movable part, a transmission rod, a cross beam and a second reset spring. The plugging assembly comprises a first pressure-bearing rod, a third reset spring and a test plug, the pressing reset assembly comprises a second pressure-bearing rod, a fourth reset spring and a pressing block, and the purpose of judging whether the elastic reed is qualified or not is achieved by monitoring the position coordinates of the first pressure-bearing rod through a displacement sensor. The method has the characteristic that the bending resilience performance of the elastic reed is conveniently and intuitively judged.

Description

Technical Field

[0001] The invention relates to the technical field of rebound testing, in particular to a bending rebound performance testing device for an electrical connection connector of an electrical box. Background Art

[0002] Spring connectors are also called elastic connectors. As electrical connectors in electrical boxes, they have elastic properties and can absorb mechanical shocks to a certain extent. Fig.10 The one-to-two spring connector shown in the figure has an elastic spring installed inside. When the wire needs to be connected, the plug of the wire is inserted into the jack, and the plug of the wire is fixed in the jack by the elastic deformation of the elastic spring. When the plug of the wire needs to be unplugged, the elastic spring is separated from the plug of the wire by pressing a button with a tool. The bending resilience of the elastic spring determines whether the plug of the wire can be firmly plugged into the jack, and further determines the stability of the electrical connection. Before the spring connector leaves the factory, it needs to be subjected to a rebound test using a test equipment to evaluate the recovery ability and long-term stability of the elastic spring under stress.

[0003] After searching, the existing announcement number CN118225598B discloses a multifunctional electrical connection plug-in testing device, including a base, a support frame, an electric push rod, a fixed frame, a first slide, a first spring, a test block, etc. The base is connected to the support frame, and the support frame is connected to an electric push rod symmetrically arranged along the horizontal distribution of the support frame on the side away from the base, a fixed frame is provided between the electric push rods, the fixed frame is slidably connected to the first slide, a first spring is connected between the first slide and the bottom of the fixed frame, and the first slide is slidably connected to the test block that slides laterally along the first slide. The fixed frame and the test block are controlled to move downward by the electric push rod, so that the test block can extrude and bend the electrical connection plug-in, and then the test block is controlled to reset, so that people can check whether the electrical connection plug-in rebounds from the bent state, so as to determine the bending rebound performance of the electrical connection plug-in.

[0004] The above electrical connection plug-in component testing device has the following defects when used: on the one hand, the test can only be performed when the elastic spring is removed or detached from the spring connector, and the spring connector cannot be tested directly; on the other hand, when the internal elastic spring cannot be seen, the user cannot intuitively judge the bending and rebound performance of the elastic spring. Summary of the invention

[0005] The purpose of the present invention is to provide a bending resilience performance testing device for electrical connection connectors of an electrical box, aiming to solve the problem that the existing electrical connection connector testing device cannot automatically test the elastic spring inside the spring connector.

[0006] To achieve the above object, the present invention provides the following technical solution: a bending resilience performance testing device for an electrical connection connector of an electrical box, comprising a frame, a drive module, a clamping assembly, a displacement sensor and a control display panel, wherein the drive module, the control display panel and the clamping assembly are all connected to the frame, and further comprising: A horizontal moving assembly drivingly connected to the driving module, the horizontal moving assembly comprising a moving frame; A pressure transmission mechanism connected to the movable frame, the pressure transmission mechanism includes a transmission assembly and a pressure assembly, the pressure assembly includes a rotating shaft, a cam, a worm gear, a No. 1 profiling guide rail, a No. 2 profiling guide rail, a No. 1 steering guide rail and a No. 2 steering guide rail, the cam and the worm gear are both fixedly connected to the rotating shaft, the rotating shaft is connected to the surface of the movable frame, the driving module and the worm gear are both transmission-connected to the transmission assembly, the cam surface is provided with a No. 1 profiling guide rail and a No. 2 profiling guide rail at intervals along its own axial direction, a No. 1 steering guide rail and a No. 2 steering guide rail are cross-connected between the No. 1 profiling guide rail and the No. 2 profiling guide rail, and the No. 1 steering guide rail and the No. 2 steering guide rail are distributed on the side of the cam surface close to the rotating shaft; A test reset mechanism, the test reset mechanism comprises a movable top pressure assembly, a plug-in assembly and a press reset assembly, the movable top pressure assembly comprises a movable part, a transmission rod, a crossbeam and a No. 2 reset spring, the movable part is connected to one end of the transmission rod, the No. 1 contour guide rail, the No. 2 contour guide rail, the No. 1 steering guide rail and the No. 2 steering guide rail are all slidably connected to the movable part, the crossbeam is slidably connected to the mobile frame, the transmission rod passes through the crossbeam, and the No. 2 reset spring is movably sleeved on the surface of the transmission rod; The plug-in assembly comprises a first pressure-bearing rod, a No. 3 return spring and a test plug, wherein a test plug is arranged at one end of the first pressure-bearing rod, the No. 3 return spring is movably sleeved on the surface of the first pressure-bearing rod, and a displacement sensor is arranged at the first pressure-bearing rod; The press-reset assembly includes a second pressure rod, a No. 4 reset spring and a press block. A press block is arranged at one end of the second pressure rod. The No. 4 reset spring is movably sleeved on the surface of the second pressure rod. The first pressure rod and the second pressure rod are both slidably connected to the movable frame. The No. 1 contoured guide rail and the No. 2 contoured guide rail correspond to the positions of the first pressure rod and the second pressure rod respectively.

[0007] As a further solution of the present invention, the movable top pressure assembly also includes a first limiting ring, two of the first limiting rings are fixedly connected to the transmission rod, the two first limiting rings are symmetrically distributed on both sides of the crossbeam, the No. 2 return spring is connected between the first limiting ring and the crossbeam, the movable part includes a movable block and a rotating rod, the movable block is fixedly connected to the rotating rod, the rotating rod is rotatably connected to the first limiting ring, and the No. 1 contouring guide rail, the No. 2 contouring guide rail, the No. 1 steering guide rail and the No. 2 steering guide rail are all slidably connected to the movable block.

[0008] As a further solution of the present invention, the cross-section of the movable block is oblong or elliptical, the No. 1 contour guide rail and the No. 2 contour guide rail have the same size, the No. 1 steering guide rail and the No. 2 steering guide rail have the same size, and the width of the No. 1 contour guide rail is smaller than the width of the No. 1 steering guide rail.

[0009] As a further solution of the present invention, the transmission assembly includes a transmission shaft, a first transmission gear, a second limiting rib and a hollow worm, both ends of the transmission shaft are connected to the frame, the first transmission gear is fixedly connected to the transmission shaft, one side of the driving module is transmission connected to the first transmission gear, the hollow worm is movably sleeved on the surface of the transmission shaft, the worm wheel is transmission connected to the hollow worm, the surface of the transmission shaft and the inner wall of the hollow worm are respectively provided with a second limiting rib and a second limiting groove, and the second limiting rib is slidably connected to the second limiting groove.

[0010] As a further solution of the present invention, the horizontal movement assembly also includes a screw rod, a second transmission gear, a first limit hole, a second limit hole and a bracket, both ends of the screw rod are connected to the frame, the second transmission gear is fixedly connected to the screw rod, the other side of the driving module is transmission-connected to the second transmission gear, the surface of the moving frame is provided with a first limit hole and a second limit hole, the crossbeam is slidably connected in the first limit hole, the first pressure-bearing rod and the second pressure-bearing rod are respectively slidably connected in the two second limit holes, the bracket is fixedly connected to the surface of the moving frame, and the hollow worm is connected to the bracket.

[0011] As a further solution of the present invention, the driving module includes a driving motor, a driving rod, a first limiting rib, a limiting plate, a driving gear, a magnetic ring, an electromagnet, a No. 1 return spring and a fixed ring. The driving motor and the fixed ring are respectively fixedly connected to the outside and inside of the frame, the driving motor is fixedly connected to one end of the driving rod, the limiting plate is fixedly connected to the other end of the driving rod, the driving gear is movably sleeved on the surface of the driving rod, the surfaces of the fixing ring and the driving gear are respectively inlaid with electromagnets and magnetic rings, the No. 1 return spring is connected between the driving gear and the fixed ring, the surfaces of the driving rod and the driving gear are respectively provided with a first limiting rib and a first limiting groove, the first limiting rib is slidably connected to the first limiting groove, and the first transmission gear and the second transmission gear are both transmission-connected to the driving gear.

[0012] As a further solution of the present invention, the plug-in assembly also includes a second limiting ring, the two second limiting rings are fixedly connected to the first pressure rod, the No. 3 return spring is connected between the second limiting ring and the movable frame, and the displacement sensor is embedded in the surface of the second limiting ring.

[0013] As a further solution of the present invention, the press-reset assembly also includes a third limiting ring, the two third limiting rings are fixedly connected to the first pressure rod, the two second limiting rings and the third limiting ring are symmetrically distributed about the movable frame, and the No. 4 reset spring is connected between the third limiting ring and the movable frame.

[0014] As a further solution of the present invention, the clamping assembly includes a jig and a telescopic member, the telescopic member is embedded in the surface of the frame, the jig is fixedly connected to the telescopic member from below, and the jig is used to position and install the spring connector.

[0015] As a further solution of the present invention, the surface of the frame is fixedly connected to a limiting guide rail and a limiting column, the bracket is slidably connected in the limiting guide rail, and the fixture is movably sleeved on the surface of the limiting column.

[0016] The beneficial effects of the present invention are that, based on the movement mode of the cam controlling the movement of the test plug and the pressing block in sequence through the movable top pressure assembly, on the one hand, it can achieve the purpose of judging whether the elastic spring is qualified by monitoring the position coordinates of the first pressure rod at the corresponding time node by utilizing the displacement sensor, and on the other hand, it can achieve the purpose of automatically controlling the test plug to separate from the elastic spring by utilizing the pressing block to squeeze the button. The present invention has the characteristics of ingenious structural coordination, convenient and intuitive judgment of the bending and rebound performance of the elastic spring, and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention.

[0018] Figure 2 It is an exploded view of the present invention.

[0019] Figure 3 It is an exploded view of a driving module according to an embodiment of the present invention.

[0020] Figure 4 It is a three-dimensional diagram of a pressure transmission mechanism according to an embodiment of the present invention.

[0021] Figure 5 It is a partial enlarged view of the pressure-applying component according to an embodiment of the present invention.

[0022] Figure 6 This is a three-dimensional diagram of a test reset mechanism according to an embodiment of the present invention.

[0023] Figure 7 It is a three-dimensional diagram of a horizontal moving assembly according to an embodiment of the present invention.

[0024] Figure 8 It is a top view of the first transmission gear, the second transmission gear and the driving module according to an embodiment of the present invention.

[0025] Fig. 9It is an assembly diagram of the pressure transmission mechanism, the test reset mechanism and the horizontal movement component according to an embodiment of the present invention.

[0026] Fig.10 A three-dimensional diagram of a one-to-two spring connector.

[0027] Fig.11 It is a plan cross-sectional view of the present invention.

[0028] Fig.12 For the present invention Fig.11 A partial enlarged view of point a in the middle.

[0029] Reference numerals: 1-frame, 11-limiting guide rail, 12-limiting column; 2-driving module, 21-driving motor, 22-driving rod, 221-first limiting rib, 222-limiting plate, 23-driving gear, 24-magnetic ring, 25-electromagnet, 26-No. 1 return spring, 27-fixing ring; 3-pressure transmission mechanism, 31-transmission assembly, 311-transmission shaft, 312-first transmission gear, 313-second limiting rib, 314-hollow worm, 32-pressure assembly, 321-rotating shaft, 322-cam, 323-worm gear, 324-No. 1 profiling guide rail, 325-No. 2 profiling guide rail, 326-No. 1 steering guide rail, 327-No. 2 steering guide rail; 4-test reset mechanism, 41-mobile top pressure assembly, 411-movable part, 412-first limit ring, 413-transmission rod, 414-crossbeam, 415-No. 2 reset spring, 42-plug assembly, 421-first pressure rod, 422-second limit ring, 423-No. 3 reset spring, 424-test plug, 43-press reset assembly, 431-second pressure rod, 432-third limit ring, 433-No. 4 reset spring, 434-pressing block; 5-horizontal moving assembly, 51-screw rod, 52-second transmission gear, 53-moving frame, 54-first limiting hole, 55-second limiting hole, 56-bracket; 6-clamping assembly, 61-jig, 62-telescopic member; 7-Control display panel; 8-spring connector, 81-jack, 82-button, 83-elastic reed; 9- Displacement sensor. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] See also Figures 1 to 9 , Fig.11 and Fig.12 In one embodiment of the present invention, a bending resilience performance testing device for an electrical connection connector of an electrical box includes a frame 1, a drive module 2, a clamping assembly 6, a displacement sensor 9 and a control display panel 7, wherein the drive module 2, the control display panel 7 and the clamping assembly 6 are all connected to the frame 1, and the control display panel 7 is in communication connection with the displacement sensor 9, and further includes: A horizontal moving assembly 5 drivingly connected to the driving module 2, wherein the horizontal moving assembly 5 comprises a moving frame 53; The pressure transmission mechanism 3 connected to the mobile frame 53 includes a transmission component 31 and a pressure component 32. The pressure component 32 includes a rotating shaft 321, a cam 322, a worm gear 323, a first profiling guide rail 324, a second profiling guide rail 325, a first steering guide rail 326 and a second steering guide rail 327. The cam 322 and the worm gear 323 are both fixedly connected to the rotating shaft 321, and the rotating shaft 321 is connected to the surface of the mobile frame 53. Block 2 and worm gear 323 are both connected to transmission assembly 31. A first profiling guide rail 324 and a second profiling guide rail 325 are arranged on the surface of cam 322 along its own axis. A first steering guide rail 326 and a second steering guide rail 327 are arranged between the first profiling guide rail 324 and the second profiling guide rail 325. The first steering guide rail 326 and the second steering guide rail 327 are distributed on one side of the surface of cam 322 close to the rotating shaft 321. A test reset mechanism 4, wherein the test reset mechanism 4 comprises a movable top pressure component 41, a plug-in component 42 and a press reset component 43, wherein the movable top pressure component 41 comprises a movable part 411, a transmission rod 413, a crossbeam 414 and a No. 2 reset spring 415, wherein the movable part 411 is connected to one end of the transmission rod 413, the No. 1 contour guide rail 324, the No. 2 contour guide rail 325, the No. 1 steering guide rail 326 and the No. 2 steering guide rail 327 are all slidably connected to the movable part 411, the crossbeam 414 is slidably connected to the movable frame 53, the transmission rod 413 passes through the crossbeam 414, and the No. 2 reset spring 415 is movably sleeved on the surface of the transmission rod 413; The plug assembly 42 includes a first pressure-bearing rod 421, a third return spring 423 and a test plug 424. The test plug 424 is provided at one end of the first pressure-bearing rod 421. The third return spring 423 is movably sleeved on the surface of the first pressure-bearing rod 421. The first pressure-bearing rod 421 is provided with a displacement sensor 9. The press-reset assembly 43 includes a second pressure rod 431, a No. 4 return spring 433 and a press block 434. A press block 434 is provided at one end of the second pressure rod 431. The No. 4 return spring 433 is movably sleeved on the surface of the second pressure rod 431. The first pressure rod 421 and the second pressure rod 431 are both slidably connected to the movable frame 53. The No. 1 contoured guide rail 324 and the No. 2 contoured guide rail 325 correspond to the positions of the first pressure rod 421 and the second pressure rod 431 respectively.

[0033] See also Figure 1 and Fig.11 Furthermore, the clamping assembly 6 includes a jig 61 and a telescopic member 62, the telescopic member 62 is embedded in the surface of the frame 1, the jig 61 is fixedly connected to the telescopic member 62 below, and the jig 61 is used to position and install the spring connector 8.

[0034] See also Figure 1 and Fig.11 Furthermore, the surface of the frame 1 is fixedly connected to the limiting guide rail 11 and the limiting column 12, and the fixture 61 is movably sleeved on the surface of the limiting column 12.

[0035] In an embodiment of the present invention, the distance between the test plug 424 and the press block 434 is consistent with the distance between the jack and the button. In the initial state, since the No. 1 turning guide rail 326 and the No. 2 turning guide rail 327 are located directly below the rotating shaft 321, and the movable part 411 is located in the middle position of the cross-intersecting No. 1 turning guide rail 326 and the No. 2 turning guide rail 327, the transmission rod 413 is distributed in the middle position of the first pressure rod 421 and the second pressure rod 431, and the upward elastic force of the No. 3 return spring 423 and the No. 4 return spring 433 drives the test plug 424 and the press block 434 to be located at the position closest to the movable frame 53.

[0036] See also Figures 4 to 6 In one embodiment of the present invention, the movable top pressure assembly 41 also includes a first limiting ring 412, and the two first limiting rings 412 are fixedly connected to the transmission rod 413, and the two first limiting rings 412 are symmetrically distributed on both sides of the cross beam 414. The No. 2 return spring 415 is connected between the first limiting ring 412 and the cross beam 414. The movable part 411 includes a movable block and a rotating rod, and the movable block is fixedly connected to the rotating rod, and the rotating rod is rotatably connected to the first limiting ring 412. The No. 1 contouring guide rail 324, the No. 2 contouring guide rail 325, the No. 1 steering guide rail 326 and the No. 2 steering guide rail 327 are all slidably connected to the movable block.

[0037] See also Figures 4 to 6Furthermore, the cross-section of the movable block is an oblong or elliptical shape, the No. 1 contour guide 324 and the No. 2 contour guide 325 are of the same size, the No. 1 steering guide 326 and the No. 2 steering guide 327 are of the same size, and the width of the No. 1 contour guide 324 is smaller than the width of the No. 1 steering guide 326.

[0038] See also Figure 6 and Fig.12 Furthermore, the plug-in assembly 42 also includes a second limiting ring 422, and the two second limiting rings 422 are fixedly connected to the first pressure rod 421, the No. 3 return spring 423 is connected between the second limiting ring 422 and the movable frame 53, and the displacement sensor 9 is embedded in the surface of the second limiting ring 422.

[0039] See also Figure 6 and Fig.12 Furthermore, the press-reset assembly 43 also includes a third limiting ring 432, the two third limiting rings 432 are fixedly connected to the first pressure rod 421, the two second limiting rings 422 and the third limiting ring 432 are symmetrically distributed about the movable frame 53, and the No. 4 reset spring 433 is connected between the third limiting ring 432 and the movable frame 53.

[0040] In the embodiment of the present invention, the maximum size of the movable block is consistent with the width of the No. 1 turning guide rail 326, and the minimum size of the movable block is consistent with the width of the No. 1 contour guide rail 324. When the movable block enters the No. 1 turning guide rail 326 from the No. 1 contour guide rail 324 or the No. 2 contour guide rail 325 enters the No. 2 turning guide rail 327, the movable block and the rotating rod are both rotated 90 degrees, and the No. 1 turning guide rail 326 and the No. 2 turning guide rail 327 can both drive the transmission rod 413 and the cross beam 414 to move horizontally along the first limiting hole through the movable block, so as to control the transmission rod 413 to be aligned with the first pressure rod 421 and the second pressure rod 431 in sequence.

[0041] See also Figure 4 , Figure 8 and Fig. 9 In one embodiment of the present invention, the transmission assembly 31 includes a transmission shaft 311, a first transmission gear 312, a second limiting rib 313 and a hollow worm 314, both ends of the transmission shaft 311 are connected to the frame 1, the first transmission gear 312 is fixedly connected to the transmission shaft 311, one side of the driving module 2 is transmission-connected to the first transmission gear 312, the hollow worm 314 is movably sleeved on the surface of the transmission shaft 311, the worm wheel 323 is transmission-connected to the hollow worm 314, the surface of the transmission shaft 311 and the inner wall of the hollow worm 314 are respectively provided with a second limiting rib 313 and a second limiting groove, and the second limiting rib 313 is slidably connected to the second limiting groove.

[0042] See also Figures 7 to 9 , Fig.11 Furthermore, the horizontal moving assembly 5 also includes a screw rod 51, a second transmission gear 52, a first limiting hole 54, a second limiting hole 55 and a bracket 56, both ends of the screw rod 51 are connected to the frame 1, the second transmission gear 52 is fixedly connected to the screw rod 51, the other side of the driving module 2 is transmission-connected to the second transmission gear 52, the surface of the moving frame 53 is provided with a first limiting hole 54 and a second limiting hole 55, the crossbeam 414 is slidably connected in the first limiting hole 54, the first pressure-bearing rod 421 and the second pressure-bearing rod 431 are respectively slidably connected in the two second limiting holes 55, the bracket 56 is fixedly connected to the surface of the moving frame 53, the hollow worm 314 is connected to the bracket 56, and the bracket 56 is slidably connected in the limiting guide rail 11.

[0043] See also Figure 3 and Figure 8 Further, the driving module 2 includes a driving motor 21, a driving rod 22, a first limiting rib 221, a limiting plate 222, a driving gear 23, a magnetic ring 24, an electromagnet 25, a first return spring 26 and a fixing ring 27, the driving motor 21 and the fixing ring 27 are respectively fixedly connected to the outside and inside of the frame 1, the driving motor 21 is fixedly connected to one end of the driving rod 22, the limiting plate 222 is fixedly connected to the other end of the driving rod 22, the driving gear 23 is movably sleeved on the surface of the driving rod 22, the surfaces of the fixing ring 27 and the driving gear 23 are respectively inlaid with the electromagnet 25 and the magnetic ring 24, the first return spring 26 is connected between the driving gear 23 and the fixing ring 27, the surfaces of the driving rod 22 and the driving gear 23 are respectively provided with a first limiting rib 221 and a first limiting groove, the first limiting rib 221 is slidably connected to the first limiting groove, and the first transmission gear 312 and the second transmission gear 52 are both transmission-connected to the driving gear 23.

[0044] In the embodiment of the present invention, when the control electromagnet 25 is energized, the electromagnet 25 after being energized is magnetically fitted with the magnetic ring 24, so the driving gear 23 is transmission-connected with the second transmission gear 52. When the control electromagnet 25 is de-energized, the electromagnet 25 after being de-energized loses its magnetic attraction to the magnetic ring 24. Therefore, the elastic force of the No. 1 reset spring 26 drives the driving gear 23 to move to a position fitted with the limit plate 222. Since the hollow worm 314 is connected to the bracket 56, the hollow worm 314 is movably sleeved on the surface of the transmission shaft 311. Therefore, when the lead screw 51 controls the movable frame 53 to move, the worm wheel 323, the hollow worm 314 and the transmission shaft 311 always maintain a transmission connection.

[0045] Working principle: S100, during the test, firstly, the spring connector 8 is positioned and installed in the fixture 61, and then the telescopic member 62 is used to adjust the longitudinal position of the spring connector 8, and then the electromagnet 25 is controlled to be energized. Since the electromagnet 25 after being energized is magnetically attached to the magnetic ring 24, the driving gear 23 moves along the driving rod 22 to a position in transmission connection with the second transmission gear 52, and then the driving motor 21 controls the driving gear 23, the second transmission gear 52 and the screw rod 51 to rotate through the driving rod 22, and the rotating screw rod 51 controls the moving frame 53, the pressure transmission mechanism 3 and the test reset mechanism 4 to move toward a position close to the spring connector 8, until the test plug 424 and the pressing block 434 are aligned with the jack 81 and the release button 82 respectively and stop; S200, then control the electromagnet 25 to cut off the power. Since the electromagnet 25 loses the magnetic attraction to the magnetic ring 24 after the power is cut off, the elastic force of the No. 1 reset spring 26 drives the driving gear 23 to move to a position where it fits with the limiting plate 222. At this time, the first transmission gear 312 is connected to the driving gear 23. Then, the driving motor 21 is used to control the transmission shaft 311 to rotate. The rotating transmission shaft 311 drives the hollow worm 314, the worm wheel 323 and the cam 322 to rotate synchronously through the second limiting rib 313. The rotating cam 322 drives the movable part 411 to rotate from the No. 1 The guide rail 326 enters the second contoured guide rail 325, thereby driving the crossbeam 414 to move along the first limiting hole 54, thereby aligning the transmission rod 413 and the first pressure-bearing rod 421, and as the cam 322 rotates, the movable part 411 sliding in the second contoured guide rail 325 drives the transmission rod 413, the first pressure-bearing rod 421 and the test plug 424 to move in a direction away from the rotating shaft 321. When the cam 322 rotates 180 degrees, the test plug 424 is fully inserted into the socket 81, and the elastic deformation of the elastic spring 83 is used to clamp the test plug 424.

[0046] S300, method for judging the bending resilience performance of the elastic spring piece 83: continue to use the driving motor 21 to control the cam 322 to rotate 180 degrees, so that the movable part 411 can be driven along the second steering guide rail 327 to be located again in the middle position of the cross-intersecting No. 1 steering guide rail 326 and No. 2 steering guide rail 327, and the elastic force of the No. 2 return spring 415 drives the transmission rod 413 to move in the direction away from the transmission rod 413. When the bending resilience performance of the elastic spring piece 83 meets the conditions or is qualified, the static friction force generated by the elastic force of the elastic spring piece 83 is greater than the upward elastic force of the No. 3 return spring 423. This test plug 424 remains stationary in the socket 81; when the bending rebound performance of the elastic spring 83 does not meet the conditions or is unqualified, the static friction force generated by the elastic force of the elastic spring 83 is less than the upward elastic force of the No. 3 reset spring 423. Therefore, the first pressure rod 421 and the test plug 424 will rise and reset synchronously with the transmission rod 413. The displacement sensor 9 embedded in the second limit ring 422 monitors the position coordinates of the first pressure rod 421 at the corresponding time node to determine whether the test plug 424 is stationary, and then to determine whether the elastic spring 83 at that location is qualified.

[0047] S400, a method for removing the test plug 424 when the bending resilience performance of the elastic spring sheet 83 is qualified: continue to use the drive motor 21 to control the cam 322 to rotate 180 degrees, so as to drive the movable part 411 along the No. 2 steering guide rail 327 to enter the middle position of the No. 1 contour guide rail 324. During this process, the transmission rod 413 first moves horizontally to a position aligned with the second pressure-bearing rod 431, and then controls the pressing block 434 to squeeze the button 82 by squeezing the second pressure-bearing rod 431 downward. The squeezed button 82 is separated from the test plug 424 by squeezing the elastic spring sheet 83. The test plug 424 automatically separates from the socket 81 under the elastic force of the No. 3 reset spring 423. The purpose of controlling the pressing block 434 to rise and reset is achieved by continuing to control the cam 322 to rotate 180 degrees, and at this time, the transmission rod 413 is also reset to a position between the first pressure-bearing rod 421 and the second pressure-bearing rod 431.

[0048] Reference Fig.10 In the one-in-two spring connector 8, since two rows of jacks 81 and buttons 82 are symmetrically arranged on the surface of the spring connector 8, the cam 322 and the test reset mechanism 4 are symmetrically arranged in two groups. When it is necessary to test another group of elastic springs 83 in the same row, the test plug 424 and the pressing block 434 are respectively aligned with the other group of jacks 81 and the release button 82 using the method of step S100, and the test is performed using the methods of steps S200, S300 and S400.

[0049] In summary, (1) based on the movement mode of the cam 322 controlling the movement of the test plug 424 and the pressing block 434 in sequence through the movable pressing assembly 41, on the one hand, the displacement sensor 9 can be used to monitor the position coordinates of the first pressure rod 421 at the corresponding time node to achieve the purpose of judging whether the elastic spring 83 is qualified, and on the other hand, the pressing block 434 can be used to squeeze the button 82 to achieve the purpose of automatically controlling the test plug 424 to separate from the elastic spring 83. The system has the characteristics of ingenious structural coordination, intuitive judgment of the bending and rebound performance of the elastic spring 83, and convenient operation.

[0050] (2) By utilizing the structural design in which the driving module 2, the horizontal moving component 5, the transmission component 31 and the pressure component 32 cooperate with each other, when the driving module 2 moves the test plug 424 and the pressing block 434 to align with the multiple groups of jacks 81 and buttons 82 respectively, the worm gear 323, the transmission shaft 311 and the hollow worm 314 always maintain a transmission connection, which is convenient for controlling the test plug 424 and the pressing block 434 to test the multiple groups of elastic springs 83. The system has the characteristics of ingenious structural coordination, automated testing and high work efficiency.

[0051] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the main purpose of the invention.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bending resilience performance testing device for an electrical connection connector of an electrical box, comprising a frame (1), a drive module (2), a clamping assembly (6), a displacement sensor (9) and a control display panel (7), wherein the drive module (2), the control display panel (7) and the clamping assembly (6) are all connected to the frame (1), and characterized in that: Also includes: A horizontal moving assembly (5) drivingly connected to the driving module (2), the horizontal moving assembly (5) comprising a moving frame (53); A pressure transmission mechanism (3) connected to a movable frame (53), the pressure transmission mechanism (3) comprising a transmission assembly (31) and a pressure assembly (32), the pressure assembly (32) comprising a rotating shaft (321), a cam (322), a worm gear (323), a first contour guide rail (324), a second contour guide rail (325), a first steering guide rail (326) and a second steering guide rail (327), the cam (322) and the worm gear (323) are both fixedly connected to the rotating shaft (321), the rotating shaft (321) is connected to the surface of the movable frame (53), and the The driving module (2) and the worm gear (323) are both connected to the transmission assembly (31) in a transmission manner. A first profiling guide rail (324) and a second profiling guide rail (325) are arranged on the surface of the cam (322) along the axis direction thereof at intervals. A first steering guide rail (326) and a second steering guide rail (327) connected in a cross manner are arranged between the first profiling guide rail (324) and the second profiling guide rail (325). The first steering guide rail (326) and the second steering guide rail (327) are distributed on one side of the surface of the cam (322) close to the rotating shaft (321). A test reset mechanism (4), the test reset mechanism (4) comprising a movable top pressure component (41), a plug-in component (42) and a press reset component (43), the movable top pressure component (41) comprising a movable part (411), a transmission rod (413), a crossbeam (414) and a No. 2 reset spring (415), the movable part (411) being connected to one end of the transmission rod (413), the No. 1 contour guide rail (324), the No. 2 contour guide rail (325), the No. 1 steering guide rail (326) and the No. 2 steering guide rail (327) being all slidably connected to the movable part (411), the crossbeam (414) being slidably connected to the movable frame (53), the transmission rod (413) passing through the crossbeam (414), and the No. 2 reset spring (415) being movably sleeved on the surface of the transmission rod (413); The plug-in assembly (42) comprises a first pressure-bearing rod (421), a No. 3 return spring (423) and a test plug (424); the test plug (424) is arranged at one end of the first pressure-bearing rod (421); the No. 3 return spring (423) is movably sleeved on the surface of the first pressure-bearing rod (421); and a displacement sensor (9) is arranged at the first pressure-bearing rod (421); The press-reset assembly (43) includes a second pressure-bearing rod (431), a No. 4 reset spring (433) and a press block (434). A press block (434) is provided at one end of the second pressure-bearing rod (431). The No. 4 reset spring (433) is movably sleeved on the surface of the second pressure-bearing rod (431). The first pressure-bearing rod (421) and the second pressure-bearing rod (431) are both slidably connected to the movable frame (53). The No. 1 contoured guide rail (324) and the No. 2 contoured guide rail (325) correspond to the positions of the first pressure-bearing rod (421) and the second pressure-bearing rod (431), respectively.

2. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 1, characterized in that: The movable top pressure assembly (41) also includes a first limiting ring (412), the two first limiting rings (412) are fixedly connected to the transmission rod (413), the two first limiting rings (412) are symmetrically distributed on both sides of the cross beam (414), the second return spring (415) is connected between the first limiting ring (412) and the cross beam (414), the movable part (411) includes a movable block and a rotating rod, the movable block is fixedly connected to the rotating rod, the rotating rod is rotatably connected to the first limiting ring (412), and the first contour guide rail (324), the second contour guide rail (325), the first steering guide rail (326) and the second steering guide rail (327) are all slidably connected to the movable block.

3. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 2, characterized in that: The cross section of the movable block is an oblong or elliptical shape, the first contour guide rail (324) and the second contour guide rail (325) have the same size, the first turning guide rail (326) and the second turning guide rail (327) have the same size, and the width of the first contour guide rail (324) is smaller than the width of the first turning guide rail (326).

4. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 1, characterized in that: The transmission assembly (31) comprises a transmission shaft (311), a first transmission gear (312), a second limiting rib (313) and a hollow worm (314); both ends of the transmission shaft (311) are connected to the frame (1); the first transmission gear (312) is fixedly connected to the transmission shaft (311); one side of the drive module (2) is transmission-connected to the first transmission gear (312); the hollow worm (314) is movably sleeved on the surface of the transmission shaft (311); the worm wheel (323) is transmission-connected to the hollow worm (314); the surface of the transmission shaft (311) and the inner wall of the hollow worm (314) are respectively provided with a second limiting rib (313) and a second limiting groove; the second limiting rib (313) is slidably connected to the second limiting groove.

5. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 4, characterized in that: The horizontal moving assembly (5) further comprises a screw rod (51), a second transmission gear (52), a first limiting hole (54), a second limiting hole (55) and a bracket (56); both ends of the screw rod (51) are connected to the frame (1); the second transmission gear (52) is fixedly connected to the screw rod (51); the other side of the driving module (2) is transmission-connected to the second transmission gear (52); the surface of the moving frame (53) is provided with a first limiting hole (54) and a second limiting hole (55); the crossbeam (414) is slidably connected in the first limiting hole (54); the first pressure-bearing rod (421) and the second pressure-bearing rod (431) are respectively slidably connected in the two second limiting holes (55); the bracket (56) is fixedly connected to the surface of the moving frame (53); and the hollow worm (314) is connected to the bracket (56).

6. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 5, characterized in that: The driving module (2) comprises a driving motor (21), a driving rod (22), a first limiting rib (221), a limiting plate (222), a driving gear (23), a magnetic ring (24), an electromagnet (25), a first reset spring (26) and a fixing ring (27); the driving motor (21) and the fixing ring (27) are respectively fixedly connected to the outside and inside of the frame (1); the driving motor (21) is fixedly connected to one end of the driving rod (22); the limiting plate (222) is fixedly connected to the other end of the driving rod (22); and the driving gear (23) is movable. The drive rod (22) is sleeved on the surface of the drive rod (22); the surfaces of the fixed ring (27) and the drive gear (23) are respectively inlaid with an electromagnet (25) and a magnetic ring (24); the first return spring (26) is connected between the drive gear (23) and the fixed ring (27); the surfaces of the drive rod (22) and the drive gear (23) are respectively provided with a first limiting rib (221) and a first limiting groove; the first limiting rib (221) is slidably connected to the first limiting groove; the first transmission gear (312) and the second transmission gear (52) are both transmission-connected to the drive gear (23).

7. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 2, characterized in that: The plug-in assembly (42) further comprises a second limiting ring (422), the two second limiting rings (422) are both fixedly connected to the first pressure-bearing rod (421), the third return spring (423) is connected between the second limiting ring (422) and the movable frame (53), and the displacement sensor (9) is embedded in the surface of the second limiting ring (422).

8. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 7, characterized in that: The push-reset assembly (43) further comprises a third limiting ring (432), the two third limiting rings (432) are both fixedly connected to the first pressure-bearing rod (421), the two second limiting rings (422) and the third limiting ring (432) are both symmetrically distributed about the movable frame (53), and the No. 4 reset spring (433) is connected between the third limiting rings (432) and the movable frame (53).

9. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 5, characterized in that: The clamping assembly (6) comprises a jig (61) and a telescopic member (62); the telescopic member (62) is embedded in the surface of the frame (1); the lower part of the jig (61) is fixedly connected to the telescopic member (62); and the jig (61) is used to position and install the spring connector (8).

10. A bending resilience performance testing device for electrical connection connectors of an electrical box according to claim 9, characterized in that: The surface of the frame (1) is fixedly connected to a limiting guide rail (11) and a limiting column (12); the bracket (56) is slidably connected in the limiting guide rail (11); and the fixture (61) is movably sleeved on the surface of the limiting column (12).

Images