An automatic PCB panel splitting and testing system

Abstract

The present invention relates to an automatic board-splitting and testing system for PCB connected boards, belonging to the technical field of PCB board testing. It includes a testing chassis, a testing table arranged inside the testing chassis, and a PCB board placed on the testing table. Along the length direction of the testing table, there are successively arranged a folding test device for performing kinking and bending tests on the PCB board, a sliding device for connecting and transferring the PCB board, and a seismic resistance device for performing seismic resistance tests on the PCB board. The present invention has the advantages of being able to perform various types of synchronous tests on the PCB board, improving the testing efficiency and enhancing the convenience for operators.

Description

Technical Field

[0001] This application relates to the technical field of circuit detection, and particularly to an automatic board-splitting test system for PCB connected boards. Background Art

[0002] A PCB (printed circuit board), also known as a printed wiring board, is one of the important components in the electronics industry. Almost every electronic device, from small electronic watches and calculators to computers, communication electronic devices, and military weapon systems, as long as there are electronic components such as integrated circuits, printed boards are used to achieve electrical interconnection between various components. A printed wiring board consists of an insulating base plate, connecting wires, and pads for assembling and soldering electronic components, and has the dual functions of a conductive circuit and an insulating base plate. It can replace complex wiring to achieve electrical connection between components in the circuit, not only simplifying the assembly and soldering work of electronic products, reducing the wiring workload in the traditional way, and greatly reducing the labor intensity of workers; but also reducing the overall volume of the machine, lowering product costs, and improving the quality and reliability of electronic devices. Printed circuit boards have good product consistency and can be designed in a standardized manner, which is conducive to realizing mechanization and automation in the production process. Currently, printed circuit boards have been extremely widely used in electronic products, and in the process of manufacturing printed circuit boards, corresponding testing is also an essential link.

[0003] For example, in the existing Chinese patent with the publication number CN214373980U, it discloses a static bending test device for a PCB circuit board with a limiting structure, including a bottom plate, supporting legs symmetrically arranged on the left and right at the bottom of the bottom plate, a test box arranged in the middle of the top of the bottom plate, a limiting mechanism arranged in the lower part of the inner cavity of the test box, a PCB circuit board clamped and placed on the limiting mechanism, and an electric push rod arranged in the middle of the top of the test box. According to the existing technology, when in use, the circuit board is placed between two clamping plates, the turntable is manually rotated, and through the worm and gear transmission, the clamping plates approach each other to clamp the circuit board, and then the locking screw is rotated to press and position the circuit board. Then, the circuit board is connected through the wiring terminals on the left and right sides, so that the signal on-off display shows that the circuit board is normally powered on. Finally, the box door is closed, the electric push rod is started, and the bending head is pushed down to perform an extrusion and bending operation on the circuit board.

[0004] However, the above existing technology has the following technical defects:

[0005] Firstly, on the first hand, the above device can only perform extrusion and bending tests on PCB boards, and the test items for PCB boards are relatively single. If other tests are to be performed on PCB boards, such as kink tests and seismic tests, the PCB boards need to be transferred to other devices and retested, which is time-consuming and laborious and greatly increases the time required for testing.

[0006] On the other hand, when the above device performs an extrusion bending test on a PCB board, only one PCB board can be placed at a time. After the test is completed, the PCB board needs to be taken out, and then another PCB board needs to be placed in for testing again, which makes the test efficiency low and the operation is cumbersome and inconvenient.

[0007] Based on this, on the basis of the existing PCB circuit board static bending test device with a limiting structure, in order to overcome the above-mentioned technical defects, there is still room for improvement. Summary of the invention

[0008] In order to perform multiple types of simultaneous tests on PCB boards, improve test efficiency and enhance operator convenience, the present application provides a PCB continuous board automatic board separation test system.

[0009] The present application provides a PCB continuous board automatic board separation test system, which adopts the following technical solutions:

[0010] A PCB continuous board automatic board separation test system, comprising a test chassis, a test bench arranged in the test chassis, and a PCB board placed on the test bench, wherein the test bench is provided with a folding test device for performing kink and bending tests on the PCB board, a sliding device for connecting and transferring the PCB board, and an anti-seismic device for performing anti-seismic tests on the PCB board in sequence along the length direction of the test bench;

[0011] The folding measuring device is arranged on the test bench near the edge position, the test bench is provided with a placing bracket for supporting and installing, a board rack for placing PCB boards is slidably provided on the placing bracket, a sliding groove for the board rack to slide is provided on the placing bracket, a sliding cylinder for driving the board rack to slide up and down is installed on the placing bracket, a connecting block connected to the telescopic end of the sliding cylinder is fixedly installed on the side of the board rack facing the sliding cylinder, a moving mechanism for driving the PCB board to move is installed on the test bench between the placing bracket and the middle part of the test bench, and a testing mechanism for performing twisting and bending tests on the PCB board is arranged below the moving mechanism.

[0012] Preferably, the moving mechanism includes a mounting frame, a resistance block and a retractable rod, the mounting frame is fixedly arranged on the test bench between the placement bracket and the middle of the test bench, the resistance block is slidably arranged on the lower side of the mounting frame, and the mounting frame is provided with a translation groove for the resistance block to slide, the retractable rod is fixedly arranged on the lower side of the mounting frame by two rectangular solid blocks, and the retractable end is fixedly connected to the resistance block.

[0013] Preferably, the testing mechanism includes a support box, a lifting plate, a lifting cylinder, a rectangular clamp, a driving rack, a rubber strip, a resisting rod, a pressing spring, and a bending tester. The support box is symmetrically and slidably arranged on the test bench. A rectangular sliding groove for the support box to slide is formed on the test bench. The lifting plate is slidably arranged in the inner cavity of the test bench. A lifting sliding groove for the lifting plate to slide is formed on the test bench. The lifting cylinder is fixedly installed in the test bench, and its lifting end is fixedly connected to the lifting plate. The rectangular clamp is rotatably arranged inside the support box through a round tooth column. The driving rack is vertically slidably arranged in the support box and meshes with the round tooth column inside the support box. The lower end of the driving rack passes through the lower side of the support box and is limited and slid on the lifting plate. A vertical groove and a through hole for the driving rack to slide and penetrate are formed on the support box. A limiting sliding groove for the lower end of the driving rack to slide is formed on the lifting plate. The rubber strips are symmetrically fixed on the rectangular clamp. An inner groove for installing the rubber strip is formed on the rectangular clamp. The resisting rod is rotatably arranged on the rectangular clamp. One end of the pressing spring is fixedly arranged in the inner groove between the two rubber strips, and the other end is fixedly connected to the resisting rod. A spring hole communicating with the inner groove for installing the pressing spring is formed on the rectangular clamp. The bending tester is arranged between the two support boxes and can be used to perform a bending test on the PCB board.

[0014] Preferably, the bending tester includes a curved surface support rod, a resisting plate, an inclined rectangular block, a bidirectional lead screw, a bending motor, and a transmission belt. The curved surface support rods are symmetrically and fixedly arranged between the two support boxes. The resisting plate is slidably arranged between the two curved surface support rods, and its lower end passes through the test bench and extends into its inner cavity. A resisting sliding groove for the resisting plate to slide is formed on the curved surface support rod. A rectangular through hole for the resisting plate to penetrate is formed on the test bench. The inclined rectangular block is slidably arranged on the inner side wall of the upper part of the test bench through a U-shaped rod and is located below the resisting plate. A bidirectional sliding groove for the U-shaped rod to slide is formed on the inner side wall of the test bench. The bidirectional lead screw passes through the two support boxes and the inclined rectangular block and is rotatably arranged in the inner cavity of the test bench below the resisting plate. A lead screw hole one and a lead screw hole two for the bidirectional lead screw to penetrate and be adapted to it are formed on the support box and the inclined rectangular block respectively. The bending motor is fixedly arranged on the inner side wall of the test bench through a motor seat one. The transmission belt is sleeved on the bidirectional lead screw and the rotating end of the bending motor.

[0015] Preferably, the sliding device includes a support frame, an inclined plate, and side baffles. The support frame is symmetrically and fixedly arranged on the test bench on the side of the testing mechanism away from the placement bracket. The inclined plate is fixedly installed obliquely on the upper sides of the two support frames. The two side baffles are respectively fixedly arranged on both sides of the inclined plate.

[0016] Preferably, the anti-seismic device includes a vibration table, a vibration plate, a rotating column, a protruding column, a vibration motor, a linkage belt, a drive belt, an out-board mechanism, and a memory. The vibration table is fixedly arranged on the test bench on the side of the sliding device away from the folding device. A plurality of the vibration plates are slid up and down in the vibration table. Vibration chutes for the vibration plates to slide are provided on the vibration table. A plurality of the rotating columns are rotatably arranged in the vibration table below the vibration plates. A plurality of the protruding columns are respectively fixedly sleeved on the plurality of rotating columns. The vibration motor is fixedly arranged in the test bench below the vibration table through a second motor base. A plurality of the linkage belts are respectively sleeved on the plurality of rotating columns. The drive belt is sleeved on the rotating column and the rotating end of the vibration motor. Sleeve openings for the drive belt to penetrate and be sleeved are provided on both the test bench and the vibration table. The out-board mechanism is arranged on the vibration table for sending out the tested PCB board from the vibration table. The memory is arranged on the test bench for storing the tested PCB board.

[0017] Preferably, the out-board mechanism includes an out-board module, a blocking plate, a U-shaped connecting plate, and an out-board cylinder. The out-board module symmetrically penetrates and slides on the vibration table. Module chutes communicating with the vibration chutes for the out-board module to slide are provided on both the vibration table and the test bench. The blocking plate is slid on the inner side wall of the vibration table on the side away from the sliding device through two vertical rods, and the lower ends of the vertical rods are fixedly connected to the out-board module. A vertical chute communicating with the module chute for the vertical rod to slide is provided on the vibration table. A sliding outlet for the PCB board to slide out is provided on the side of the vibration table away from the sliding device. The U-shaped connecting plate is fixedly arranged on the lower sides of the two out-board modules. The out-board cylinder is fixedly arranged in the test bench, and the telescopic end is fixedly connected to the U-shaped connecting plate.

[0018] Preferably, the memory includes a board storage drawer and a drawer handle. The board storage drawer is slid on the test bench on the side of the vibration table away from the sliding device. A drawer opening for the board storage drawer to slide is provided on the test bench. A board storage opening communicating with the inner cavity of the board storage drawer is provided on the upper side of the test bench. The drawer handle is fixedly installed on the board storage drawer.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. To improve the test efficiency and enhance the convenience of the operator, the present application can put multiple PCB boards to be tested into the test chassis at one time to facilitate the synchronous testing of various types of PCB boards, thereby improving the test efficiency. The tested PCB boards can be centrally collected in the memory, so as to facilitate the operator to centrally take out the tested PCB boards;

[0021] 2. The mobile mechanism in this application can transfer the PCB board previously placed on the board rack to the testing mechanism. First, the testing mechanism can perform a rotational kinking test on the PCB board. After the test is completed, the bending tester installed in the testing mechanism can continue to perform a bending test on the PCB board. This can not only measure the bending toughness of the PCB board, but also measure whether the components soldered on the PCB board are firmly welded and whether the components soldered on the PCB board will fall off when subjected to bending.

[0022] 3. Finally, through the cooperation of the mobile mechanism and the sliding device, the PCB board that has completed the kinking and bending tests can be sent to the anti-seismic device to test the anti-seismic performance of the PCB board to further test whether the components soldered on the PCB board are firmly welded and qualified and whether they will easily fall off due to vibration. When performing the anti-seismic test on this PCB board, the mobile mechanism can continue to transfer another PCB board to be tested to the testing mechanism for kinking and bending tests, so as to achieve multiple types of synchronous tests on the PCB board and improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall schematic diagram of this application Figure 1 。

[0024] Figure 2 is the overall schematic diagram of this application Figure 2 。

[0025] Figure 3 is the schematic diagram of the folding test device.

[0026] Figure 4 is the schematic diagram of the mobile mechanism (viewed from bottom to top).

[0027] Figure 5 is the cross-section of the testing mechanism Figure 1 。

[0028] Figure 6 is the cross-section of the testing mechanism Figure 2 。

[0029] Figure 7 is the cross-section of the bending tester Figure 1 。

[0030] Figure 8 is the cross-section of the bending tester Figure 2 (viewed from bottom to top).

[0031] Figure 9 is the schematic diagram of the sliding device and the memory.

[0032] Figure 10 is the cross-sectional view of the anti-seismic device.

[0033] Figure 11 is the cross-section of the board output mechanismFigure 1 。

[0034] Figure 12 It is a cross-section of the board output mechanism Figure 2 (Viewed from bottom to top).

[0035] Description of reference numerals: 1. Test chassis; 11. Test bench; 12. PCB board; 2. Bending test device; 3. Sliding and feeding device; 4. Anti-seismic device; 21. Placing bracket; 22. Board placing rack; 211. Sliding groove; 23. Sliding cylinder; 24. Connecting block; 5. Moving mechanism; 6. Testing mechanism; 51. Mounting frame; 52. Contact block; 53. Retractable rod; 511. Translation groove; 54. Rectangular fixing block; 61. Support box; 62. Lifting plate; 63. Lifting cylinder; 64. Rectangular clamping block; 65. Driving rack; 66. Rubber strip; 67. Contact rod; 68. Tightening spring; 7. Bending tester; 111. Rectangular sliding groove; 112. Lifting sliding groove; 69. Circular tooth column; 611. Vertical groove; 612. Penetrating hole; 621. Limit sliding groove; 641. Inner groove; 642. Spring hole; 71. Curved surface support rod; 72. Contact plate; 73. Inclined surface rectangular block; 74. Bi-directional lead screw; 75. Bending motor; 76. Transmission belt; 711. Contact sliding groove; 113. Rectangular through hole; 77. U-shaped rod; 114. Bi-directional sliding groove; 613. Lead screw hole one; 731. Lead screw hole two; 78. Motor base one; 31. Support frame; 32. Inclined plate; 33. Side baffle; 41. Vibration table; 42. Vibration plate; 43. Rotating column; 44. Protruding column; 45. Vibration motor; 46. Linkage belt; 47. Driving belt; 8. Board output mechanism; 9. Memory; 411. Vibration sliding groove; 48. Motor base two; 412. Sleeve opening; 81. Board output module; 82. Blocking plate; 83. U-shaped connecting plate; 84. Board output cylinder; 413. Module sliding groove; 85. Vertical rod; 414. Vertical groove; 415. Sliding outlet; 91. Board storage drawer; 92. Drawer handle; 115. Drawer opening; 116. Board storage opening. Detailed implementation manners

[0036] The following further elaborates on this application in conjunction with the attached Figure 1-12 drawings for a more detailed description.

[0037] The embodiment of the present application discloses an automatic board-splitting and testing system for PCB connected boards, which can perform various types of synchronous tests on the PCB board 12, improve the testing efficiency and enhance the convenience for operators; the present application provides an automatic board-splitting and testing system for PCB connected boards, including a testing chassis 1, a testing table 11 arranged in the testing chassis 1, and a PCB board 12 placed on the testing table 11. Along the length direction of the testing table 11, a folding test device 2 for performing kinking and bending tests on the PCB board 12, a sliding device 3 for connecting and transferring the PCB board 12, and a seismic resistance device 4 for performing seismic resistance tests on the PCB board 12 are sequentially arranged on the testing table 11. First, the PCB boards 12 to be tested are sequentially placed on the folding test device 2 for kinking and bending tests. After the tests are completed, the PCB boards 12 are transferred to the seismic resistance device 4 by the sliding device 3 for the final seismic resistance test.

[0038] Referring Figures 1 to 3 As shown, the folding test device 2 is arranged at a position close to the edge on the testing table 11. A placement bracket 21 for supporting and installing is provided on the testing table 11. A board placement rack 22 for placing the PCB board 12 is slidably arranged on the placement bracket 21. The PCB boards 12 to be tested can be sequentially stacked and placed on the board placement rack 22; a sliding groove 211 for the board placement rack 22 to slide is formed on the placement bracket 21. A sliding cylinder 23 for driving the board placement rack 22 to slide up and down is installed on the placement bracket 21. A connection block 24 connected to the telescopic end of the sliding cylinder 23 is fixedly installed on one side of the board placement rack 22 facing the sliding cylinder 23. A moving mechanism 5 for driving the PCB board 12 to move is installed between the placement bracket 21 and the middle of the testing table 11 on the testing table 11. A testing mechanism 6 for performing kinking and bending tests on the PCB board 12 is arranged below the moving mechanism 5.

[0039] First, the placement bracket 21 can be taken out to facilitate placing the devices to be tested, that is, the PCB boards 12, sequentially on the board placement rack 22 in a stacked manner. After the PCB boards 12 are placed, the placement bracket 21 is placed at the designated position on the testing table 11. Corresponding limit blocks are provided on the testing table 11. The placement bracket 21 can be placed within the limit area. Subsequently, the topmost PCB board 12 is transferred to the testing mechanism 6 by the moving mechanism 5. After the kinking and bending tests on the PCB board 12 are completed, the moving mechanism 5 is started again to transfer this PCB board 12 to the sliding device 3. Finally, after the moving mechanism 5 is reset, the sliding cylinder 23 is started to drive the board placement rack 22 to rise, so that another PCB board 12 to be tested rises to the position of the previously topmost PCB board 12, and so on to realize the kinking and bending tests on the PCB boards 12 placed on the board placement rack 22.

[0040] Referring Figure 3 and Figure 4As shown, since it is necessary to move the PCB board 12, a moving mechanism 5 for driving the PCB board 12 to move is provided on the folding device 2, and the moving mechanism 5 includes a mounting frame 51, a resistance block 52 and a retracting rod 53; the mounting frame 51 is fixedly arranged on the test bench 11 between the placement bracket 21 and the middle of the test bench 11, and the resistance block 52 is slidably arranged on the lower side of the mounting frame 51, and a translation groove 511 for the resistance block 52 to slide is opened on the mounting frame 51, and the retracting rod 53 is fixedly arranged on the lower side of the mounting frame 51 through two rectangular solid blocks 54, and the retracting end is fixedly connected to the resistance block 52; when the retracting rod 53 is retracted, it can drive the resistance block 52 to move toward the middle of the test bench 11, and the resistance block 52 will resist the PCB board 12 to be tested placed on the board rack 22 during the process of moving toward the middle of the test bench 11, thereby achieving the effect of transferring the PCB board 12 from the board rack 22 to the test mechanism 6 below the moving mechanism 5.

[0041] Reference Figure 5 and Figure 6 As shown, in order to perform a kink test on the PCB board 12, the test mechanism 6 includes a support box 61, a lifting plate 62, a lifting cylinder 63, a rectangular clamp 64, a driving rack 65, a rubber strip 66, a contact rod 67, a tightening spring 68 and a bending tester 7; the support box 61 is symmetrically slidably arranged on the test table 11, and a rectangular slide groove 111 for the support box 61 to slide is opened on the test table 11. Dovetail blocks are fixedly installed on both sides of the support box 61, and the dovetail blocks are limited and slid in the rectangular slide groove 111 to realize The supporting box 61 can slide within the rectangular groove 111 when subjected to force; the lifting plate 62 is slidably arranged in the inner cavity of the test bench 11, and a lifting groove 112 for sliding the lifting plate 62 is provided on the test bench 11. The lifting cylinder 63 is fixedly installed in the test bench 11, and the lifting end is fixedly connected to the lifting plate 62. The rectangular clamp 64 is rotatably arranged on the inner side of the supporting box 61 through the spherical tooth column 69. One end of the spherical tooth column 69 is in the supporting box 61, and the other end penetrates the supporting box 61 and is fixedly connected to the rectangular clamp 64.

[0042] The driving rack 65 is vertically slidably arranged in the support box 61 and meshes with the round gear column 69 in the support box 61, and the lower end of the driving rack 65 passes through the lower side of the support box 61 and slides on the lifting plate 62. It should be noted that the driving racks 65 in the two support boxes 61 are meshed with the round gear column 69 in different directions, so that when the two driving racks 65 are forced to move upward, they can respectively drive the two round gear columns 69 to rotate in different directions, thereby driving the two rectangular clamping blocks 64 to rotate in different directions; the support box 61 is provided with a vertical groove 611 and a penetration hole 612 for the driving rack 65 to slide and penetrate, and the lifting plate 62 is provided with a limiting slide groove 621 for the lower end of the driving rack 65 to slide, and a dovetail block is fixedly installed at the lower end of the driving rack 65. Sliding in the limiting slide groove 621, the driving rack 65 can slide on the lifting plate 62 under force, and at the same time, when the lifting plate 62 is forced to move up and down, it can synchronously drive the driving rack 65 to slide up and down in the support box 61; the rubber strip 66 is symmetrically fixed on the rectangular clamping block 64, and the rectangular clamping block 64 is provided with an inner groove 641 for installing the rubber strip 66. The resistance rod 67 is rotatably set on the rectangular clamping block 64, and one end of the tightening spring 68 is fixed in the inner groove 641 between the two rubber strips 66, and the other end is fixedly connected to the resistance rod 67. The rectangular clamping block 64 is provided with a spring hole 642 that is connected to the inner groove 641 for installing the tightening spring 68. The bending tester 7 is arranged between the two support boxes 61 and can be used to perform a bending test on the PCB board 12.

[0043] When the PCB board 12 is resisted by the resisting block 52 and slides toward the test mechanism 6, it will be inserted into the inner groove 641 and be located between the two rubber strips 66. When the PCB board 12 is inserted into the inner groove 641, it will resist the resisting rod 67, driving the resisting rod 67 to rotate into the inner groove 641 between the two rubber strips 66 and finally be completely located in the inner groove 641. Due to the presence of the resisting spring 68, the resisting rod 67 always has a clamping force on both sides of the PCB board 12, so that the PCB board 12 is not easy to fall off in the inner groove 641. Then start The lifting cylinder 63 drives the lifting plate 62 to rise, so as to form an upward driving force on the two driving racks 65. When the two driving racks 65 move upward at the same time, the two rectangular clamping blocks 64 can be driven to rotate in different directions through the round tooth column 69, that is, the PCB board 12 between the two rectangular clamping blocks 64 can be rotated and twisted, thereby realizing a rotation and twisting test of the PCB board 12. Since the PCB board 12 is between the rubber strips 66, the rectangular clamping blocks 64 will not cause damage to the PCB board 12 when they rotate.

[0044] Reference Figure 7 and Figure 8As shown, since the PCB board 12 still needs to be bent and tested, a bending tester 7 is still provided in the testing mechanism 6. The bending tester 7 includes a curved surface support rod 71, a contact plate 72, an inclined surface rectangular block 73, a bidirectional lead screw 74, a bending motor 75 and a transmission belt 76. The curved surface support rod 71 is symmetrically and fixedly arranged between the two support boxes 61. The contact plate 72 is slidably arranged between the two curved surface support rods 71, and the lower end extends through the test bench 11 into its inner cavity. It should be noted that the upper part of the contact plate 72 is made of rubber material, and the contact plate 72 will not damage the PCB board 12 when it moves upward under force and comes into contact with it. A contact sliding groove 711 for the contact plate 72 to slide is formed on the curved surface support rod 71, and a rectangular through hole 113 for the contact plate 72 to penetrate is formed on the test bench 11. The inclined surface rectangular block 73 is slidably arranged on the inner side wall of the upper part of the test bench 11 through a U-shaped rod 77 and is located below the contact plate 72. A bidirectional sliding groove 114 for the U-shaped rod 77 to slide is formed on the inner side wall of the test bench 11. The inclined surface rectangular block 73 can slide on the inner side wall of the upper part of the test bench 11 when it is stressed. Since it is located below the contact plate 72 and both the lower end of the contact plate 72 and the inclined surface rectangular block 73 are provided with inclined guiding surfaces, when the inclined surface rectangular block 73 moves downward under force and comes into contact with the contact plate 72, it will push the contact plate 72 upward, forming an upward driving force on the contact plate 72.

[0045] The bidirectional lead screw 74 penetrates through the two support boxes 61 and the inclined surface rectangular block 73 and is rotatably arranged in the inner cavity of the test bench 11 below the contact plate 72. Screw holes one 613 and screw holes two 731 for the bidirectional lead screw 74 to penetrate and be adapted to are formed on the support boxes 61 and the inclined surface rectangular block 73. When the bidirectional lead screw 74 rotates under force, it can drive the inclined surface rectangular block 73 to slide on the inner side wall of the upper part of the test bench 11, and the two support boxes 61 will move towards each other. When the bidirectional lead screw 74 rotates in the reverse direction, it will drive the support boxes 61 and the inclined surface rectangular block 73 to return to their initial positions. The bending motor 75 is fixedly arranged on the inner side wall of the test bench 11 through a motor base one 78, and the transmission belt 76 is sleeved on the rotating ends of the bidirectional lead screw 74 and the bending motor 75.

[0046] After the kink test of the PCB board 12 is completed and the rectangular clamp block 64 returns to the initial horizontal position, the bending motor 75 is started to drive the bidirectional lead screw 74 to rotate through the transmission belt 76, so as to drive the inclined surface rectangular block 73 to move downward below the abutting plate 72, forming an upward driving force on the abutting plate 72. The upper end of the abutting plate 72 will abut against the lower side of the PCB board 12, so that the PCB board 12 will be bent. When the bidirectional lead screw 74 rotates, the two support boxes 61 will move towards each other to further squeeze the bent PCB board 12, making the bending deformation of the PCB board 12 further increase, so as to realize the bending test of the PCB board 12. After the test is completed, the bending motor 75 drives the bidirectional lead screw 74 to rotate back through the transmission belt 76, that is, to drive the support box 61 and the inclined surface rectangular block 73 to return to the initial position. At this time, the abutting plate 72 is no longer abutted by the inclined surface rectangular block 73 and will also slide downward and reset.

[0047] Refer to Figure 9 As shown, it is a schematic structural diagram of the sliding device 3 in this embodiment. The sliding device 3 includes a support frame 31, an inclined plate 32 and side baffles 33; the support frame 31 is symmetrically and fixedly arranged on the test bench 11 on the side of the test mechanism 6 away from the placement bracket 21, the inclined plate 32 is fixedly installed obliquely on the upper sides of the two support frames 31, and the two side baffles 33 are respectively fixedly arranged on both sides of the inclined plate 32; after the bending test of the PCB board 12 is completed, the retraction rod 53 is started again to move the PCB board 12 towards the sliding device 3 through the abutting block 52, and then the retraction rod 53 drives the abutting block 52 to reset. The sliding cylinder 23 drives the plate placing frame 22 to rise to push the next PCB board 12 to be tested to the designated position, so as to realize the kink and bending tests of the PCB board 12 reciprocally; when the PCB board 12 that has completed the kink and bending tests is moved onto the sliding device 3, it will fall on the inclined plate 32 and slide to the shock-resistant device 4 through the inclined surface.

[0048] Refer to Figure 10As shown, in order to test the seismic performance of the PCB board 12 and further test whether the devices soldered on the PCB board 12 are firmly qualified, the seismic device 4 includes a vibration table 41, a vibration plate 42, a rotating column 43, a protruding column 44, a vibration motor 45, a linkage belt 46, a drive belt 47, a board output mechanism 8 and a memory 9; the vibration table 41 is fixedly arranged on the test bench 11 on the side of the sliding device 3 away from the folding test device 2. It should be noted that in this embodiment, preferably ten vibration plates 42 slide up and down in the vibration table 41. A vibration chute 411 for the vibration plate 42 to slide is opened on the vibration table 41. Ten rotating columns 43, which are the same in number as the vibration plates 42, are respectively rotatably arranged in the vibration table 41 below the ten vibration plates 42. Ten protruding columns 44, which are the same in number as the rotating columns 43, are respectively fixedly sleeved on the ten rotating columns 43. It should be noted that the protruding parts of the ten protruding columns 44 are all in different initial positions; the vibration motor 45 is fixedly arranged in the test bench 11 below the vibration table 41 through a motor base two 48. In this embodiment, preferably nine linkage belts 46 are respectively sleeved on the ten rotating columns 43. Two rotating columns 43 are in a group and are sleeved by one linkage belt 46 to achieve the effect that when one of the rotating columns 43 is stressed and rotates, the other nine rotating columns 43 rotate synchronously.

[0049] The drive belt 47 is sleeved on the rotating column 43 and the rotating end of the vibration motor 45. The drive belt 47 is sleeved on one of the rotating columns 43 to connect it with the rotating end of the vibration motor 45. That is, due to the existence of the linkage belt 46 and the drive belt 47, when the vibration motor 45 rotates, it can drive the ten rotating columns 43 to rotate simultaneously; through holes for the drive belt 47 to penetrate and be sleeved are opened on both the test bench 11 and the vibration table 41. The board output mechanism 8 is arranged on the vibration table 41 to send out the tested PCB board 12 from the vibration table 41, and the memory 9 is arranged on the test bench 11 to store the tested PCB board 12.

[0050] When the PCB board 12 slides into the seismic device 4, it will fall on the vibration plate 42 in the vibration table 41. Subsequently, the vibration motor 45 is started to drive the rotating column 43 to rotate. At this time, the protruding column 44 fixedly sleeved on the rotating column 43 also rotates synchronously. The protruding part on the protruding column 44 will intermittently contact the vibration plate 42 above, forming an effect of pushing the vibration plate 42 upward. Since the initial positions of the protruding parts of the protruding column 44 are all different, the ten vibration plates 42 will slide up and down in the vibration table 41 at different frequencies, so as to achieve the effect of vibrating the PCB board 12 and testing whether the devices soldered on the PCB board 12 will break away from the PCB board 12 during vibration, that is, further testing whether the devices soldered on the PCB board 12 are firmly qualified.

[0051] Refer to Figures 10 to 12As shown in the figure, since it is necessary to take out the tested PCB board 12, an out-board mechanism 8 is provided in the anti-seismic device 4 for the convenience of the operator to take it out. The out-board mechanism 8 includes an out-board module 81, a blocking plate 82, a U-shaped connecting plate 83, and an out-board cylinder 84. The out-board module 81 symmetrically penetrates and slides on the vibration table 41. Module chutes 413 communicating with the vibration chute 411 for the out-board module 81 to slide are provided on both the vibration table 41 and the test table 11. The out-board module 81 is trapezoidally arranged. When the out-board module 81 is forced to slide upward, it can push ten vibration plates 42 to rise by different distances respectively, and finally the ten vibration plates 42 are arranged in a stepped shape, that is, the PCB board 12 on the vibration plate 42 will slide due to the inclined stepped shape of the vibration plate 42. The blocking plate 82 is slidably arranged on the inner side wall of the vibration table 41 far from the sliding device 3 through two vertical rods 85, and the lower ends of the vertical rods 85 are fixedly connected to the out-board module 81. When the out-board module 81 is forced to rise, it will synchronously drive the blocking plate 82 upward. A vertical chute 414 communicating with the module chute 413 for the vertical rod 85 to slide is provided on the vibration table 41. A sliding outlet 415 for the PCB board 12 to slide out is provided on the side of the vibration table 41 far from the sliding device 3. When the PCB board 12 slides due to the inclined stepped shape of the vibration plate 42, it will slide out of the vibration table 41 through the sliding outlet 415. The U-shaped connecting plate 83 is fixedly arranged on the lower sides of the two out-board modules 81. The U-shaped connecting plate 83 is located in the inner cavity of the test table 11, and the upper side of the U-shaped connecting plate 83 is fixedly connected to the lower sides of the two out-board modules 81. The out-board cylinder 84 is fixedly arranged in the test table 11, and the telescopic end is fixedly connected to the U-shaped connecting plate 83.

[0052] After the vibration test of the PCB board 12 is completed, the out-board cylinder 84 is started to drive the two out-board modules 81 to rise through the U-shaped connecting plate 83, so that the vibration plates 42 are arranged in a stepped shape. At this time, the sliding outlet 415 is also in an open state, and the PCB board 12 can slide out of the vibration table 41 through the sliding outlet 415, thereby realizing the effect of the PCB board 12 sliding out of the vibration table 41 for out-boarding.

[0053] Looking back Figure 9 As shown in the figure, the structure of the memory 9 in this embodiment is schematically shown. The memory 9 includes a storage board drawer 91 and a drawer handle 92. The storage board drawer 91 slides on the test table 11 on the side of the vibration table 41 far from the sliding device 3. A drawer opening 115 for the storage board drawer 91 to slide is provided on the test table 11. A storage board opening 116 communicating with the inner cavity of the storage board drawer 91 is provided on the upper side of the test table 11. The drawer handle 92 is fixedly installed on the storage board drawer 91. The PCB board 12 that slides out of the vibration table 41 will fall into the storage board drawer 91 through the storage board opening 116 for centralized collection. The drawer handle 92 can facilitate the operator to pull out the storage board drawer 91 and conveniently take out the tested PCB board 12 centrally collected in the storage board drawer 91.

[0054] The implementation principle of this embodiment is as follows:

[0055] (1) Placing the device: First, the placement bracket 21 can be taken out to facilitate placing the device to be tested, that is, the PCB board 12, on the board placement rack 22 in a stacked manner. After the PCB board 12 is placed, the placement bracket 21 is placed at the designated position on the test bench 11. There are corresponding limit blocks on the test bench 11, and the placement bracket 21 can be placed within the limit area;

[0056] (2) Testing bending: Subsequently, through the moving mechanism 5, the PCB board 12 to be tested previously placed on the board placement rack 22 can be transferred to the testing mechanism 6. The testing mechanism 6 can perform torsion and bending tests on the PCB board 12. After the test is completed, the PCB board 12 can be sent to the anti-vibration device 4 through the cooperation of the moving mechanism 5 and the sliding device 3;

[0057] (3) Vibration test: After the PCB board 12 slides onto the vibration plate 42 in the vibration table 41, the vibration motor 45 is started, and the PCB board 12 can be vibration-tested in the vibration table 41 to further test whether the components soldered on the PCB board 12 are firm;

[0058] (4) Removing the device: After the vibration test is completed, through the board discharging mechanism 8, the PCB board 12 in the vibration table 41 can be discharged from the vibration table 41 through the sliding outlet 415 opened on the side of the vibration table 41. Finally, it falls into the storage board drawer 91 through the storage board opening 116. After a whole batch of PCB boards 12 are tested, the operator can pull out the storage board drawer 91 to take out the PCB boards 12 stored centrally.

[0059] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic splitting and testing system for PCB connected boards, comprising a testing chassis, a testing table arranged inside the testing chassis, and a PCB board placed on the testing table, characterized in that: A folding and bending test device for performing folding and bending tests on a PCB board, a sliding device for connecting and transferring the PCB board, and a seismic resistance device for performing seismic resistance tests on the PCB board are sequentially arranged along the length direction of the test bench on the test bench; The folding and bending test device is arranged at a position close to the edge on the test bench. A placement bracket for support and installation is provided on the test bench. A board placement frame for placing the PCB board is slidably arranged on the placement bracket. A sliding groove for the board placement frame to slide is formed on the placement bracket. A sliding cylinder for driving the board placement frame to slide up and down is installed on the placement bracket. A connection block connected to the telescopic end of the sliding cylinder is fixedly installed on one side of the board placement frame facing the sliding cylinder. A moving mechanism for driving the PCB board to move is installed between the placement bracket and the middle of the test bench on the test bench. A test mechanism for performing folding and bending tests on the PCB board is arranged below the moving mechanism; The test mechanism includes a support box, a lifting plate, a lifting cylinder, a rectangular clamp, a driving rack, a rubber strip, a resisting rod, a tightening spring, and a bending tester. The support box is symmetrically and slidably arranged on the test bench. A rectangular sliding groove for the support box to slide is formed on the test bench. The lifting plate is slidably arranged in the inner cavity of the test bench. A lifting sliding groove for the lifting plate to slide is formed on the test bench. The lifting cylinder is fixedly installed in the test bench, and the lifting end is fixedly connected to the lifting plate. The rectangular clamp is rotatably arranged inside the support box through a circular tooth column. The driving rack is vertically slidably arranged inside the support box and meshes with the circular tooth column inside the support box. The lower end of the driving rack passes through the lower side of the support box and is limited and slid on the lifting plate. A vertical groove and a through hole for the driving rack to slide and penetrate are formed on the support box. A limiting sliding groove for the lower end of the driving rack to slide is formed on the lifting plate. The rubber strips are symmetrically fixedly arranged on the rectangular clamp. Inner grooves for installing the rubber strips are formed on the rectangular clamp. The resisting rod is rotatably arranged on the rectangular clamp. One end of the tightening spring is fixedly arranged in the inner groove between the two rubber strips, and the other end is fixedly connected to the resisting rod. A spring hole communicating with the inner groove for installing the tightening spring is formed on the rectangular clamp. The bending tester is arranged between the two support boxes and can be used for performing bending tests on the PCB board; The bending tester includes a curved surface support rod, a contact plate, an inclined surface rectangular block, a bidirectional lead screw, a bending motor, and a transmission belt. The curved surface support rods are symmetrically and fixedly arranged between two support boxes. The contact plate is slidably arranged between the two curved surface support rods, and its lower end passes through the test bench and extends into its inner cavity. A contact sliding groove for the contact plate to slide is formed on the curved surface support rod. A rectangular through hole for the contact plate to penetrate is formed on the test bench. The inclined surface rectangular block is slidably arranged on the inner side wall of the test bench through a U-shaped rod and is located below the contact plate. A bidirectional sliding groove for the U-shaped rod to slide is formed on the inner side wall of the test bench. The bidirectional lead screw penetrates through the two support boxes and the inclined surface rectangular block and is rotatably arranged in the inner cavity of the test bench below the contact plate. Screw holes one and two for the bidirectional lead screw to penetrate and be adapted to are formed on the support box and the inclined surface rectangular block. The bending motor is fixedly arranged on the inner side wall of the test bench through a motor base one. The transmission belt is sleeved on the bidirectional lead screw and the rotating end of the bending motor.

2. The automatic board splitting and testing system for PCB connected boards according to claim 1, wherein: The moving mechanism includes a mounting frame, a contact block, and a retractable rod. The contact block is slidably arranged on the lower side of the mounting frame. A translation groove for the contact block to slide is formed on the mounting frame. The retractable rod is fixedly arranged on the lower side of the mounting frame through two rectangular fixing blocks, and its retractable end is fixedly connected to the contact block.

3. The automatic board-splitting and testing system for PCB connected boards according to claim 1, wherein: The sliding device includes a support frame, an inclined plate, and side baffles. The support frames are symmetrically and fixedly arranged on the test bench on the side of the test mechanism away from the placement bracket. The inclined plate is fixedly installed obliquely on the upper sides of the two support frames. The two side baffles are respectively fixedly arranged on both sides of the inclined plate.

4. A PCB connecting board automatic board splitting and testing system according to claim 1, characterized in that: The anti-seismic device includes a vibration table, a vibration plate, a rotating column, a protruding column, a vibration motor, a linkage belt, a driving belt, a plate discharging mechanism, and a memory. The vibration table is fixedly arranged on the test bench on the side of the sliding device away from the folding and testing device. A plurality of vibration plates slide up and down in the vibration table. A vibration sliding groove for the vibration plates to slide is formed on the vibration table. A plurality of rotating columns are rotatably arranged in the vibration table below the vibration plates. A plurality of protruding columns are respectively fixedly sleeved on the plurality of rotating columns. The vibration motor is fixedly arranged in the test bench below the vibration table through a motor base two. A plurality of linkage belts are respectively sleeved on the plurality of rotating columns. The driving belt is sleeved on the rotating column and the rotating end of the vibration motor. A sleeve opening for the driving belt to penetrate and be sleeved is formed on both the test bench and the vibration table. The plate discharging mechanism is arranged on the vibration table for sending out the tested PCB board from the vibration table. The memory is arranged on the test bench for storing the tested PCB board.

5. The automatic panel cutting and testing system for PCB connecting panels according to claim 4, wherein: The plate output mechanism includes a plate output module, a blocking plate, a U-shaped connecting plate, and a plate output cylinder. The plate output module symmetrically penetrates and slides on the vibration table. Module chutes communicating with the vibration chute for the plate output module to slide are provided on both the vibration table and the test table. The blocking plate is slidably arranged on the inner side wall of the vibration table on the side away from the sliding and feeding device through two vertical rods, and the lower ends of the vertical rods are fixedly connected to the plate output module. The vibration table is provided with a vertical chute communicating with the module chute for the vertical rods to slide. A sliding outlet for the PCB board to slide out is provided on the side of the vibration table away from the sliding and feeding device. The U-shaped connecting plate is fixedly arranged on the lower sides of the two plate output modules. The plate output cylinder is fixedly arranged in the test table, and its telescopic end is fixedly connected to the U-shaped connecting plate.

6. The automatic panel cutting and testing system for PCB connected panels according to claim 4, wherein: The memory includes a plate storage drawer and a drawer handle. The plate storage drawer is slidably arranged on the test table on the side of the vibration table away from the sliding and feeding device. A drawer opening for the plate storage drawer to slide is provided on the test table. A plate storage opening communicating with the inner cavity of the plate storage drawer is provided on the upper side of the test table. The drawer handle is fixedly installed on the plate storage drawer.

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