Printed circuit board assembly testing device and testing method

Abstract

The invention relates to the technical field of circuit testing, in particular to a printed circuit board assembly testing device and method, and the device comprises a probe plate assembly which is disposed on a framework assembly and is provided with a probe; the pressing plate assembly is located above the needle plate assembly. A PCBA board is placed on the carrier board assembly, and the carrier board assembly is in sliding connection with the framework assembly; the upper cover assembly is connected with the framework assembly; the printed circuit board assembly testing device has a first state in which the carrier plate assembly slides out of the upper cover assembly, a PCBA board is placed, and the code scanning assembly automatically scans a code to read information; in the second state, the carrier plate assembly slides to the interior of the upper cover assembly, the pressing plate assembly presses the carrier plate assembly, the PCBA board test point is in contact with the probe, and the test is carried out; in the third state, the pressing plate assembly moves upwards, the test points are separated from the probes, the carrier plate assembly slides out of the upper cover assembly, and the PCBA plate is taken down; according to the application, automatic testing of the PCBA board is realized, the testing efficiency is improved, and the testing quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit testing, and in particular to a printed circuit board assembly testing device and a testing method. Background Art

[0002] PCBA (Printed Circuit Board Assembly) refers to the assembly of printed circuit boards (PCB); it is an assembly technology that installs electronic components on the surface of printed circuit boards and then connects the electronic components with other components to form a circuit system. The PCBA board is composed of printed circuit boards and electronic components and is the core part of electronic products. In order to ensure the factory quality of the PCBA board, after the PCBA board is manufactured, the PCBA board needs to be loaded on the corresponding test fixture for software download and function testing. Most of the existing test devices are manual tests, with low test efficiency and it is difficult to guarantee the test quality of the PCBA board. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects that most of the existing devices for testing PCBA boards are manual tests, the test efficiency is low, and it is difficult to ensure the test quality of the PCBA boards.

[0004] In order to solve the above problems, the present invention provides an improved printed circuit board assembly test device, comprising:

[0005] Architecture components;

[0006] Scan code component;

[0007] A needle plate assembly is arranged on the framework assembly, and a probe is arranged on the needle plate assembly;

[0008] A pressure plate assembly, located above the needle plate assembly;

[0009] A carrier assembly, suitable for placing a PCBA board, wherein the carrier assembly is slidably connected to the framework assembly, and the height of the carrier assembly is located between the needle plate assembly and the pressure plate assembly;

[0010] An upper cover assembly is connected to the frame assembly, and the upper cover assembly is suitable for covering the pressing plate assembly, the needle plate assembly, and the carrier plate assembly inside;

[0011] The printed circuit board assembly test device has a first state in which the carrier assembly slides to the outside of the upper cover assembly, the PCBA board is placed, the code scanning assembly automatically scans the QR code information on the PCBA board and sends it back; and a second state in which the carrier assembly slides to above the needle plate assembly inside the upper cover assembly, the pressure plate assembly moves downward, and the carrier assembly is pressed down, so that the test points of the PCBA board contact with the corresponding probes for testing; and a third state in which the pressure plate assembly moves upward, the test points are separated from the probes, the carrier assembly slides to the outside of the upper cover assembly, and the PCBA board is removed.

[0012] Optionally, a plurality of PCBA boards are suitable for being placed on the carrier board assembly; and the code scanning assembly is suitable for simultaneously scanning and reading the two-dimensional code information on the plurality of PCBA boards.

[0013] Optionally, it also includes:

[0014] The sensor assembly is arranged on the carrier assembly, and the sensor assembly is suitable for detecting whether a PCBA board is placed on the carrier assembly and detecting whether the PCBA board is in a flat state.

[0015] Optionally, the code scanning component includes:

[0016] Barcode scanner, suitable for scanning and reading the QR code information on the PCBA board and transmitting it back;

[0017] A mounting plate, on which the barcode scanner is mounted;

[0018] A first rod member is horizontally arranged, and the mounting plate is mounted on the first rod member through a first clamping block;

[0019] A second rod member is horizontally arranged and is perpendicular to the first rod member; the second rod member is connected to the first rod member via a second clamping block;

[0020] The third rod is arranged in the vertical direction, and the third rod is perpendicular to the second rod; the third rod is connected to the second rod through a third clamp; size scale values ​​are marked on the second rod and the third rod; the code scanning assembly is suitable for adjusting the position of the code scanner by adjusting the clamping position of the first clamp, the second clamp and the third clamp.

[0021] Optionally, the code scanning component includes:

[0022] A manipulator, adapted to suck up the PCBA board through the suction cup in a first state and place it on the carrier assembly, and to remove the PCBA board through the suction cup in a third state;

[0023] The camera is arranged on the robot arm, and the camera is suitable for scanning and reading the two-dimensional code information on the PCBA board and transmitting it back.

[0024] Optionally, the architecture components include:

[0025] Base plate;

[0026] A first power member, the top end of which is connected to the pressing plate assembly, and the first power member is suitable for driving the pressing plate assembly to move up and down;

[0027] A slider is disposed on the bottom plate, and the slider is slidably connected to the carrier plate assembly;

[0028] A second power member is disposed on the bottom plate and connected to the carrier assembly, and the second power member is suitable for driving the carrier assembly to slide to the inside or outside of the upper cover assembly;

[0029] The buffer mechanism is arranged on the bottom plate, and the buffer mechanism is located at the extreme position of the carrier plate assembly inside the upper cover assembly.

[0030] Optionally, the carrier board assembly includes:

[0031] A fixed plate, the bottom surface of which is provided with a slide rail, the slide rail is slidably connected to the slider; and the fixed plate is connected to the second power member;

[0032] A carrier body is suitable for placing the PCBA board, and the carrier body is located above the fixing plate; at least two alignment holes are provided on the carrier body along the diagonal direction; a third guide column corresponding to the position of the alignment hole is provided on the needle plate assembly, and the alignment hole and the third guide column are slidably matched, which is suitable for ensuring that the test point of the PCBA board corresponds to the corresponding probe position;

[0033] an elastic member, disposed between the fixing plate and the carrier body, the elastic member being adapted to apply an upward elastic restoring force to the carrier body in the third state;

[0034] A second guide post is vertically disposed on the fixing plate, and the carrier body is slidably connected to the second guide post;

[0035] At least one limiting member is disposed between the fixing plate and the carrier body, and the limiting member is suitable for limiting the maximum height of the carrier body's descent.

[0036] Optionally, the upper cover assembly includes:

[0037] An upper cover outer frame is arranged on the outer periphery;

[0038] The cover plate is located in the middle and is detachably connected to the upper cover outer frame. A handle is provided on the top surface of the cover plate.

[0039] Optionally, it also includes:

[0040] The bottom frame assembly is located below the frame assembly, and the edge of the bottom frame assembly is rotatably connected to the edge of the frame assembly. When the frame assembly is rotated to an inclined state, the frame assembly is supported by a support rod provided on the bottom frame assembly to maintain the inclined state of the frame assembly.

[0041] The present invention also provides a printed circuit board assembly test method, which uses the printed circuit board assembly test device, including:

[0042] The carrier assembly slides to the outside of the upper cover assembly, and the PCBA board is placed thereon. The code scanning assembly scans the QR code information on the PCBA board and transmits it back.

[0043] The carrier assembly slides to the top of the needle plate assembly inside the upper cover assembly, and the pressure plate assembly moves downward to press the carrier assembly, so that the test points of the PCBA board contact the corresponding probes for testing;

[0044] The pressure plate assembly moves upward, the test point is separated from the probe, the carrier assembly slides to the outside of the upper cover assembly, and the PCBA board is removed.

[0045] The above technical solution of the present invention has the following advantages compared with the prior art:

[0046] 1. The printed circuit board assembly test device provided by the present invention comprises: a framework component; a code scanning component; a needle plate component, which is arranged on the framework component, and a probe is arranged on the needle plate component; a pressure plate component, which is located above the needle plate component; a carrier plate component, which is suitable for placing a PCBA board, and the carrier plate component is slidably connected to the framework component, and the height of the carrier plate component is located between the needle plate component and the pressure plate component; an upper cover component, which is connected to the framework component, and the upper cover component is suitable for covering the pressure plate component, the needle plate component, and the carrier plate component inside; the printed circuit board assembly test device has a structure in which the carrier plate component slides to the upper cover component. The PCBA board is placed outside the component, and the scanning component automatically scans the QR code information on the PCBA board and sends it back in the first state; and the carrier board component slides to above the needle plate component inside the upper cover component, the pressure plate component moves downward, and the carrier board component is pressed down, so that the test point of the PCBA board contacts the corresponding probe for testing; and the pressure plate component moves upward, the test point is separated from the probe, the carrier board assembly slides to the outside of the upper cover assembly, and the PCBA board is removed in the third state; the present application adopts the above technical solution to realize automatic testing of the PCBA board, improve testing efficiency, and ensure the testing quality of the PCBA board.

[0047] 2. The present invention is suitable for placing multiple PCBA boards on the carrier assembly; the code scanning assembly is suitable for simultaneously scanning and reading the two-dimensional code information on multiple PCBA boards; the present application adopts the above technical solution to improve the testing efficiency by simultaneously scanning and reading the two-dimensional code information on multiple PCBA boards.

[0048] 3. The printed circuit board assembly test device provided by the present invention also includes: a sensor component, which is arranged on the carrier assembly, and the sensor component is suitable for detecting whether a PCBA board is placed on the carrier assembly and detecting whether the PCBA board is in a flat state; the present application adopts the above technical solution, and ensures that the PCBA board is in a flat state through the sensor component, and prevents the PCBA board from being crushed when the pressure plate assembly moves downward and presses down the carrier assembly, thereby ensuring the test quality.

[0049] 4. The barcode scanning assembly described in the present invention includes: a barcode scanner, suitable for scanning and reading the two-dimensional code information on the PCBA board, and transmitting it back; a mounting plate, on which the barcode scanner is mounted; a first rod, horizontally arranged, and the mounting plate is mounted on the first rod through a first clamp; a second rod, horizontally arranged, and the second rod is perpendicular to the first rod; the second rod is connected to the first rod through a second clamp; a third rod is arranged in a vertical direction, and the third rod is perpendicular to the second rod; the third rod is connected to the second rod through a third clamp; size scale values ​​are marked on the second rod and the third rod; the barcode scanning assembly is suitable for adjusting the position of the barcode scanner by adjusting the clamping positions of the first clamp, the second clamp and the third clamp; the present application adopts the above technical solution to facilitate the adjustment of the position of the barcode scanner to achieve the best scanning effect.

[0050] 5. The code scanning component of the present invention includes: a manipulator, which is suitable for sucking the PCBA board through the suction cup in the first state and placing it on the carrier assembly, and removing the PCBA board through the suction cup in the third state; a camera, which is arranged on the manipulator, and the camera is suitable for scanning the code to read the two-dimensional code information on the PCBA board and transmit it back; this application adopts the above technical solution, and through the cooperation of the manipulator, the test efficiency is further improved.

[0051] 6. The carrier assembly of the present invention comprises: a fixed plate, the bottom surface of which is provided with a slide rail, the slide rail is slidably connected to the slider; and the fixed plate is connected to the second power member; a carrier body, suitable for placing the PCBA board, and the carrier body is located above the fixed plate; at least two alignment holes are provided on the carrier body along the diagonal direction; a third guide column corresponding to the position of the alignment hole is provided on the needle plate assembly, and the alignment hole and the third guide column are slidably matched, suitable for ensuring that the test point of the PCBA board corresponds to the corresponding probe position; an elastic member is arranged between the fixed plate and the carrier body, and the elastic member is suitable for moving toward the carrier in the third state The board body applies an upward elastic restoring force; the second guide column is vertically arranged on the fixed plate, and the carrier body is slidably connected to the second guide column; at least one limiter is arranged between the fixed plate and the carrier body, and the limiter is suitable for limiting the maximum height of the carrier body's descent; the present application adopts the above technical solution, by setting the second guide column and the limiter, the carrier body can move up and down stably within a limited height range; and by setting the elastic member, the carrier body can rebound quickly to improve work efficiency; and, by cooperating with the third guide column through the alignment hole, the test point of the PCBA board is accurately contacted with the corresponding probe to ensure the test quality.

[0052] 7. The upper cover assembly described in the present invention includes: an upper cover outer frame, which is arranged on the outer periphery; a cover plate, which is located in the middle, and the cover plate is detachably connected to the upper cover outer frame, and a handle is provided on the top surface of the cover plate; the present application adopts the above technical solution, and the cover plate and the upper cover outer frame are detachably connected, which is easy to disassemble, convenient for maintaining the devices inside the upper cover assembly and replacing the pressure plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 It is a schematic diagram of the three-dimensional structure of the printed circuit board assembly test device provided in the first embodiment of the present invention;

[0055] Figure 2 It is a partial three-dimensional structural schematic diagram of the printed circuit board assembly test device provided in the first embodiment of the present invention;

[0056] Figure 3 It is a schematic diagram of the three-dimensional structure of the carrier assembly provided in the first embodiment of the present invention;

[0057] Figure 4 It is a partial three-dimensional structural schematic diagram of the carrier board assembly provided in the first embodiment of the present invention;

[0058] Figure 5 It is a three-dimensional structural schematic diagram of a drawer door panel assembly provided in the first embodiment of the present invention;

[0059] Figure 6 It is a schematic diagram of the three-dimensional structure of the needle plate assembly provided in the first embodiment of the present invention;

[0060] Figure 7 A schematic diagram of the three-dimensional structure of the architecture component provided in the first embodiment of the present invention;

[0061] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressing plate assembly provided in the first embodiment of the present invention;

[0062] Fig. 9 It is a schematic diagram of the three-dimensional structure of the bottom frame assembly provided in the first embodiment of the present invention;

[0063] Fig.10 It is a schematic diagram of the three-dimensional structure of the upper cover assembly provided in the first embodiment of the present invention;

[0064] Fig.11 This is a schematic diagram of the three-dimensional structure of the code scanning component provided in the first embodiment of the present invention;

[0065] Fig.12 Schematic diagram of the three-dimensional structure of the second mounting block provided in the first embodiment of the present invention Figure 1 ;

[0066] Fig.13 Schematic diagram of the three-dimensional structure of the second mounting block provided in the first embodiment of the present invention Figure 2 ;

[0067] Fig.14 Schematic diagram of the three-dimensional structure of the adjustment block provided in the first embodiment of the present invention Figure 1 ;

[0068] Fig.15 Schematic diagram of the three-dimensional structure of the adjustment block provided in the first embodiment of the present invention Figure 2 ;

[0069] Fig.16 It is a schematic diagram of the three-dimensional structure of the sensor assembly provided in the first embodiment of the present invention;

[0070] Fig.17 Schematic diagram of the three-dimensional structure of the anti-pressure mechanism provided in the first embodiment of the present invention Figure 1 ;

[0071] Fig.18Schematic diagram of the three-dimensional structure of the anti-pressure mechanism provided in the first embodiment of the present invention Figure 2 ;

[0072] Fig.19 It is a schematic diagram of the three-dimensional structure of the printed circuit board assembly test device provided in the second embodiment of the present invention.

[0073] Description of reference numerals:

[0074] 1. Carrier assembly; 2. Drawer door assembly; 3. Needle plate assembly; 4. Framework assembly; 5. Pressing plate assembly; 6. Bottom frame assembly; 7. Upper cover assembly; 8. Scanning barcode assembly; 9. L-shaped connector; 10. Elastic column; 11. First mounting block; 12. Carrier body; 13. Connecting block; 14. Second guide column; 15. Stopper; 16. Fixed plate; 17. Second mounting block; 18. Linear pressure block; 19. Adjustment block; 20. Reflective sensor; 21. Rotating shaft; 22. Door panel; 23. Switch; 24. Door handle; 25. Needle plate; 26. Guard plate; 27. Probe; 28. Column; 29. ​​Third guide column; 30. Support block; 31. Bottom plate; 32. Buffer; 33. First guide column; 34. First power member; 35. Slider; 36. Slide rail; 37. Fixed block; 38. Upper pressing plate; 39. Linear bearing; 4 0. Second power member; 41. Third mounting block; 42. Heightening block; 43. Upper pressure plate; 44. Upper loading plate; 45. L-shaped support block; 46. Bottom frame body; 47. Handle; 48. Luggage buckle; 49. Anti-pressure mechanism; 50. Emergency stop switch; 51. Controller assembly; 52. Cooling fan; 53. Rear panel; 54. Upper cover frame; 55. Handle; 56. Cover plate; 57. Upper cover handle; 58. Speed ​​regulating valve ; 59. pressure regulating valve; 60. barcode scanner; 61. mounting plate; 62. first rod; 63. first clamp; 64. second rod; 65. alignment hole; 66. mounting surface; 67. wire groove; 68. first strip hole; 69. through hole; 70. fixing seat; 71. rotating member; 72. button; 73. second clamp; 74. third rod; 75. second strip hole; 76. third clamp; 77. fourth clamp. DETAILED DESCRIPTION

[0075] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0076] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0077] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0079] When testing PCBA boards, manual code scanning is generally used, and only one QR code can be scanned at a time, which has low test efficiency. In addition, during the test, if the PCBA board is not laid flat, it is easy to damage the PCBA board when it is pressed down, and the test quality is low. In addition, without the cooperation of the robot, the test efficiency is low.

[0080] Due to the above reasons, the present application proposes an improved printed circuit board assembly test device.

[0081] Implementation Method 1

[0082] like Figures 1 to 18 A specific embodiment of the printed circuit board assembly test device shown includes: a framework component 4, a code scanning component 8, a needle plate component 3, a pressure plate component 5, a carrier board component 1, an upper cover component 7, a sensor component, a bottom frame component 6 and a drawer door panel component 2.

[0083] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the needle plate assembly 3 is arranged on the framework assembly 4, and a probe 27 is provided on the needle plate assembly 3. The pressure plate assembly 5 is located above the needle plate assembly 3. The carrier assembly 1 is suitable for placing a PCBA board, and the carrier assembly 1 is slidably connected to the framework assembly 4, and the height of the carrier assembly 1 is located between the needle plate assembly 3 and the pressure plate assembly 5. The upper cover assembly 7 is connected to the framework assembly 4, and specifically, the upper cover assembly 7 is connected to a plurality of fixing blocks 37 arranged along the periphery of the framework assembly 4 by screw threads. And the upper cover assembly 7 is suitable for covering the pressure plate assembly 5, the needle plate assembly 3, and the carrier assembly 1 inside. The printed circuit board assembly test device has a first state in which the carrier assembly 1 slides to the outside of the upper cover assembly 7, the PCBA board is placed, the code scanning assembly 8 scans the code to read the two-dimensional code information on the PCBA board, and sends it back; and has a second state in which the carrier assembly 1 slides to above the needle plate assembly 3 inside the upper cover assembly 7, the pressure plate assembly 5 moves downward, and the carrier assembly 1 is pressed down, so that the test point of the PCBA board contacts the corresponding probe 27 for testing; and has a third state in which the pressure plate assembly 5 moves upward, the test point is separated from the probe 27, the carrier assembly 1 slides to the outside of the upper cover assembly 7, and the PCBA board is removed.

[0084] Furthermore, the carrier assembly 1 is suitable for placing multiple PCBA boards; the code scanning assembly 8 is suitable for simultaneously scanning and reading the two-dimensional code information on multiple PCBA boards.

[0085] like Figure 3 , Figure 4 , Figures 12 to 16As shown, the sensor assembly is arranged on the carrier assembly 1, and the sensor assembly is suitable for detecting whether the carrier assembly 1 is placed with a PCBA board and whether the PCBA board is in a flat state. The sensor assembly is two groups symmetrically arranged on both sides of the PCBA board, and the sensor assembly can be adjusted along the Y direction and the Z direction. The Y direction is the sliding direction of the carrier assembly 1, and the Z direction is the vertical direction. The two groups of sensor assemblies can be used to detect whether the carrier assembly 1 is placed with a PCBA board and whether the PCBA board is in a flat state. The sensor assembly includes: a second mounting block 17, a wire pressure block 18, an adjustment block 19 and a reflective sensor 20. The second mounting block 17 is provided with a horizontal mounting surface 66, and the reflective sensor 20 is fixed on the mounting surface 66. Two first strip holes 68 along the vertical direction are arranged at intervals on one side of the second mounting block 17, and a wire groove 67 is provided between the two first strip holes 68. The wire pressure block 18 is arranged on the wire groove 67. The adjustment block 19 is provided with a second strip hole 75 arranged along the Y direction and two through holes 69 adapted to the position of the first strip hole 68; the adjustment block 19 is fixed to the carrier assembly 1 by a first fastener passing through the second strip hole 75, and the adjustment block 19 is connected to the second mounting block 17 by two second fasteners passing through the two through holes 69 and the two first strip holes 68. The position of the reflective sensor 20 in the Y direction is adjusted by adjusting the relative position of the first fastener and the second strip hole 75, and the position of the reflective sensor 20 in the Z direction is adjusted by adjusting the positions of the two second fasteners and the two first strip holes 68.

[0086] like Fig.11 As shown, the code scanning assembly 8 includes: a code scanner 60, a mounting plate 61, a first rod 62, a second rod 64, and a third rod 74. The code scanner 60 is suitable for scanning and reading the two-dimensional code information on the PCBA board, and transmitting it back. The code scanner 60 is installed on the mounting plate 61. The first rod 62 is arranged horizontally, and the mounting plate 61 is installed on the first rod 62 through a first clamping block 63. The second rod 64 is arranged horizontally, and the second rod 64 is perpendicular to the first rod 62; the second rod 64 is connected to the first rod 62 through a second clamping block 73. The third rod 74 is arranged in the vertical direction and is perpendicular to the second rod 64; the third rod 74 is connected to the second rod 64 through a third clamp 76; the second rod 64 and the third rod 74 are marked with size scale values; the code scanning assembly 8 is suitable for adjusting the position of the code scanner 60 by adjusting the clamping position of the first clamp 63, the second clamp 73 and the third clamp 76. The third rod 74 of the code scanning assembly 8 is installed on the upper cover assembly 7 through a fourth clamp 77.

[0087] like Figure 1 , Figure 2 and Figure 7 As shown, the framework assembly 4 includes: a base plate 31, a first power member 34, a first guide column 33, a slider 35, a second power member 40 and a buffer mechanism. The top of the first power member 34 is connected to the pressure plate assembly 5, and the first power member 34 is suitable for driving the pressure plate assembly 5 to rise and fall. Further, the first power member 34 is two symmetrical left and right, and a pad block 42 is provided at the top of the first power member 34, and an upper pressure plate 38 is fixedly connected to the top surface of the two pad blocks 42; the first guide column 33 is vertically arranged on the base plate 31, and the upper pressure plate 38 is slidably connected to the first guide column 33 through a linear bearing 39; specifically, the linear bearing 39 can be a T-type linear bearing, and the lower surface of the T-shaped portion of the T-type linear bearing is fitted and connected to the top surface of the upper pressure plate 38. The top surface of the upper pressure plate 38 is connected to the pressure plate assembly 5. The first guide columns 33 are four distributed on the periphery. The slider 35 is arranged on the bottom plate 31, and the slider 35 is slidably connected to the carrier assembly 1. There are two sliders 35 arranged at intervals. The second power member 40 is arranged on the bottom plate 31, and the second power member 40 is connected to the carrier assembly 1, and the second power member 40 is suitable for driving the carrier assembly 1 to slide to the inside or outside of the upper cover assembly 7. The buffer mechanism is arranged on the bottom plate 31, and the buffer mechanism is located at the extreme position of the carrier assembly 1 inside the upper cover assembly 7 to reduce the speed of the carrier assembly 1 in place and limit the position of the carrier assembly 1 entering the inside of the upper cover assembly 7. Specifically, the buffer mechanism is two groups arranged near the middle part of the bottom plate 31, and each group of buffer mechanisms includes: a third mounting block 41 fixedly arranged on the bottom plate 31 and a buffer 32 fixed on the third mounting block 41.

[0088] Specifically, the first power member 34 and the second power member 40 are both cylinders; the first power member 34 and the second power member 40 are both provided with in-position sensing sensors, and the in-position sensing sensors are used for outputting signals to form an automated operation test.

[0089] like Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the carrier assembly 1 includes: a fixed plate 16, a carrier body 12, an elastic member, a second guide column 14 and at least one stopper 15. The bottom surface of the fixed plate 16 is provided with a slide rail 36, and the slide rail 36 is slidably connected with the slider 35; the slide rail 36 is two mutually parallel slide rails arranged in the front-back direction, and the slide rail 36 is connected to the bottom surface of the fixed plate 16 through the first mounting block 11. The fixed plate 16 is connected to the second power member 40, specifically, the fixed plate 16 is connected to the second power member 40 through the L-shaped connecting member 9 arranged on the side wall, so that the carrier assembly 1 can move forward and backward along the sliding direction, forming a drawer-type entry and exit structure. The carrier body 12 is suitable for placing the PCBA board, and the carrier body 12 is located above the fixed plate 16; at least two alignment holes 65 are provided on the carrier body 12 in the diagonal direction; a third guide column 29 corresponding to the position of the alignment hole 65 is provided on the needle plate assembly 3, and the alignment hole 65 and the third guide column 29 are slidably matched, which is suitable for ensuring that the test point of the PCBA board corresponds to the position of the corresponding probe 27, and the alignment hole 65 is a precision-machined alignment hole. The elastic member is arranged between the fixed plate 16 and the carrier body 12, and the elastic member is suitable for applying an upward elastic restoring force to the carrier body 12 in the third state. Specifically, the elastic member is an elastic column 10, and the elastic column 10 is four and distributed along the periphery. The second guide column 14 is vertically arranged on the fixed plate 16, and the carrier body 12 is slidably connected to the second guide column 14, and specifically, the second guide column 14 is four and distributed along the periphery. The limiter 15 is disposed between the fixing plate 16 and the carrier body 12, and is suitable for limiting the maximum height of the carrier body 12. Specifically, the limiter 15 is four equal-height screws threadedly connected to the bottom surface of the carrier body 12 and arranged at the top angle.

[0090] like Fig. 9 and Fig.10As shown, the upper cover assembly 7 includes: an upper cover outer frame 54 and a cover plate 56. The upper cover outer frame 54 is arranged on the periphery. The cover plate 56 is located in the middle, and the cover plate 56 is detachably connected to the upper cover outer frame 54. Specifically, the cover plate 56 and the upper cover outer frame 54 are in a clearance sliding fit, which is easy to disassemble, and convenient for maintaining the components inside the upper cover assembly 7 and replacing the pressure plate assembly 5. A handle 55 is provided on the top surface of the cover plate 56. An upper cover handle 57, a speed regulating valve 58 and a pressure regulating valve 59 are provided on the side wall of the upper cover outer frame 54. The air inlet of each cylinder is connected to the speed regulating valve 58 connected to it, and the speed regulating valve 58 controls the movement speed of the cylinder by adjusting the air intake speed. One end of the pressure regulating valve 59 is connected to the air intake pipe joint arranged on the rear panel 53, and the other end of the pressure regulating valve 59 is connected to the solenoid valve; the pressure regulating valve 59 is used to adjust the working air pressure of the entire printed circuit board assembly test device.

[0091] like Fig. 9 and Fig.10As shown, the bottom frame assembly 6 is located below the frame assembly 4, and the edge of the bottom frame assembly 6 is rotatably connected to the edge of the frame assembly 4, and specifically, the edge of the bottom frame assembly 6 and the edge of the frame assembly 4 can be connected by a hinge. When the frame assembly 4 is rotated to a tilted state, the frame assembly 4 is supported by a support rod provided on the bottom frame assembly 6 to maintain the tilted state of the frame assembly 4, thereby facilitating the maintenance of the components in the bottom frame assembly 6. The bottom frame assembly 6 includes: a bottom frame body 46; the bottom frame body 46 is a cavity with an upper opening; an anti-pressure mechanism 49 and an emergency stop switch 50 are provided on the front wall of the bottom frame body 46; the emergency stop switch 50 is connected to an external main power supply, and the emergency stop switch 50 is used to directly disconnect the power supply to the printed circuit board assembly test device. A handle 47 and a bag buckle 48 are provided on the outside of the left and right side walls of the bottom frame body 46; the handle 47 is suitable for taking; the bag buckle 48 is suitable for cooperating with the corresponding buckling structure on the upper cover outer frame 54 to connect the upper cover assembly 7 and the bottom frame assembly 6 to protect the components inside the upper cover assembly 7 and the bottom frame assembly 6. A controller assembly 51 is installed in the bottom frame assembly 6; the controller assembly 51 belongs to the action logic control part; the controller assembly 51 is connected to the electromagnetic sensor signal provided on the solenoid valve and the cylinder; the controller assembly is used to control the operation of the solenoid valve and receive the signal of the electromagnetic sensor; the electromagnetic sensor includes: the in-place sensing sensor. A cooling fan 52 is installed on the left and right side walls of the bottom frame assembly 6, and the cooling fan 52 is suitable for dissipating the heat in the bottom frame assembly 6 to avoid the accumulated high temperature affecting the operating speed and stability of the components in the bottom frame assembly 6. A rear panel 53 is installed on the rear side of the bottom frame assembly 6, and an air intake pipe joint, a power line interface, and a communication interface are installed on the rear panel 53. The air intake pipe joint is connected to the air intake pipe, the power line interface is connected to the external main power supply, and the communication interface is connected to the external computer signal.

[0092] like Fig.17 and Fig.18 As shown, the anti-pressure mechanism 49 includes: a rotating shaft 21, a fixed seat 70 and a rotating member 71; the fixed seat 70 is fixed inside the front wall of the bottom frame body 46, the rotating shaft 21 is fixed to the front wall of the bottom frame body 46 and the fixed seat 70, and the rotating member 71 is rotatably connected to the rotating shaft 21; a torsion spring is provided between the fixed seat 70 and the rotating member 71. Fig.17 As shown, when the frame assembly 4 is in a flat state, the rotating member 71 is in a horizontal state. When the frame assembly 4 is rotated to an inclined state, as shown in FIG. Fig.18 As shown, the rotating member 71 rotates to a vertical state to support the frame assembly 4. The torsion spring is suitable for providing a force to rotate the rotating member 71 from a horizontal state to a vertical state.

[0093] like Figure 3 and Figure 5 As shown, the drawer door panel assembly 2 is connected to the connection block 13 provided at the front end of the carrier assembly 1, and the drawer door panel assembly 2 includes: a door panel 22; the door panel 22 is used to protect the carrier assembly 1; a switch 23, a door handle 24 and a button 72 are provided on the outer wall of the door panel 22. The door handle 24 is suitable for pulling. The switch 23 and the button 72 are both connected to the controller assembly 51, and the switch 23 and the button 72 are both used to manually start the test.

[0094] like Figure 7 and Figure 8 As shown, the pressure plate assembly 5 includes: an upper pressure plate 43, which is fixed to the top surface of the upper pressure plate 38 by two L-shaped support blocks 45 installed symmetrically with screws, so as to facilitate the replacement of the pressure plate assembly 5. An upper loading plate 44 is fixedly connected to the bottom surface of the upper pressure plate 43.

[0095] like Figure 3 , Figure 6 and Figure 7 As shown, the needle plate assembly 3 includes: a needle plate 25, a guard plate 26, a column 28 and a support block 30. The two support blocks 30 are fixed symmetrically on the left and right sides of the middle of the front end of the bottom plate 31. Two columns 28 are symmetrically installed on the upper surfaces of the two support blocks 30. The tops of the four columns 28 are fastened to the bottom surface of the needle plate 25 by screws. A probe 27 and a guard plate 26 are installed in the middle part of the upper surface of the needle plate 25. The probe 27 extends through the guard plate 26; and two third guide columns 29 are installed in the vertical direction at the diagonal position in the middle of the needle plate 25. The third guide column 29 is used to cooperate with the alignment hole 65. During the test, the carrier body 12 moves along the third guide column 29, so that the probe 27 can smoothly pass through the probe avoidance hole on the carrier body 12 and contact the test point on the PCBA board.

[0096] Implementation Method 2

[0097] like Fig.19 As shown, the code scanning component 8 includes: a manipulator and a camera. The manipulator is suitable for sucking the PCBA board through the suction cup in the first state and placing it on the carrier assembly 1, and removing the PCBA board through the suction cup in the third state. The camera is set on the manipulator, and the camera is suitable for scanning and reading the QR code information on the PCBA board and transmitting it back. Other technical solutions are the same as the first embodiment.

[0098] The present invention also provides a printed circuit board assembly test method, which uses the printed circuit board assembly test device and comprises the following steps:

[0099] The carrier assembly 1 slides to the outside of the upper cover assembly 7, and the PCBA board is placed thereon. The code scanning assembly 8 scans and reads the QR code information on the PCBA board and transmits it back.

[0100] The carrier assembly 1 slides to above the needle plate assembly 3 inside the upper cover assembly 7, and the pressure plate assembly 5 moves downward to press the carrier assembly 1, so that the test points of the PCBA board contact with the corresponding probes 27 for testing.

[0101] The pressure plate assembly 5 moves upward, the test point is separated from the probe 27, the carrier assembly 1 slides to the outside of the upper cover assembly 7, and the PCBA board is removed.

[0102] Specifically, the test steps of the printed circuit board assembly test method corresponding to the first embodiment are briefly described as follows: manually press the open button 72; the second power member 40 pushes the carrier assembly 1 to the outside of the upper cover assembly 7, and manually places and positions the PCBA board on the carrier body 12, and the PCBA board can be a single board or a connected board; manually press the double start button; the double start button is a switch 23 and a button 72; the use of a double start button can be safe and prevent mistakes, that is, when both hands press the switch 23 and the button 72 at the same time, it is prevented that one hand operates the product and the other hand presses the switch, causing dangerous accidents such as pinching. The reflective sensor 20 is used to detect whether there is a PCBA board on the carrier body 12 and whether the PCBA board is placed flat; the barcode scanner 60 starts scanning and reads the two-dimensional code information on the PCBA board. After the return, the second power member 40 drives the carrier assembly 1 and the PCBA board placed on the carrier assembly 1 to move to the bottom of the pressure plate assembly 5, and the first in-position sensing sensor on the second power member 40 senses the in-position; the first power members 34 on both sides of the framework assembly 4 drive the pressure plate assembly 5 to move vertically downward, so that the carrier body 12 and the PCBA board move downward until the carrier body 12 and the PCBA board are pressed tightly, so that the probe 27 on the needle plate assembly 3 is in contact with the test point on the PCBA board. The touch sensor 32 at the bottom of the first power member 34 senses that the probe 27 is in place; the second power member 40 drives the carrier assembly 1 and the PCBA board placed on the carrier assembly 1 to move outside the upper cover assembly 7; the PCBA board is manually taken out and placed in the unqualified area or the qualified area according to the test results.

[0103] Specifically, the test steps of the printed circuit board assembly test method corresponding to the second implementation mode are briefly described as follows: use the central control software to control the camera on the manipulator to start scanning, read the two-dimensional code information on the PCBA board, and send it back; the central control software controls the suction cup of the manipulator to suck up the PCBA board and place it on the carrier body 12; the central control software controls the reflective sensors 20 on both sides of the PCBA board to detect whether there is a PCBA board on the carrier body 12 and whether the PCBA board is placed flat; the central control software sends an instruction, and the second power member 40 drives the carrier assembly 1 and the PCBA board placed on the carrier assembly 1 to move to the bottom of the pressure plate assembly 5, and the first in-position sensing sensor on the second power member 40 senses the position; the first power members 34 on both sides of the framework assembly 4 drive the pressure plate assembly 5 to move vertically downward, so that the carrier body 12 and the PCBA board move downward until The carrier body 12 and the PCBA board are pressed tightly, so that the probe 27 on the needle plate assembly 3 contacts the test point on the PCBA board, and the second in-place sensing sensor at the bottom of the first power member 34 senses in-place; start the test, which generally includes: download or function test; after the test is completed, the first power members 34 on both sides of the framework assembly 4 drive the pressure plate assembly 5 to move vertically upward, and at the same time, the carrier body 12 and the PCBA board rebound upward, so that the probe 27 is separated from the test point on the PCBA board, and the third in-place sensing sensor at the top of the first power member 34 senses in-place; the second power member 40 drives the carrier assembly 1 and the PCBA board placed on the carrier assembly 1 to move outside the upper cover assembly 7; the central control software controls the suction cup of the manipulator to absorb the tested PCBA board, and places the PCBA board in the unqualified area or the qualified area according to the test results.

[0104] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A printed circuit board assembly test device, characterized in that: include: Architecture components (4); Scan code component (8); A needle plate assembly (3) is arranged on the framework assembly (4), and a probe (27) is arranged on the needle plate assembly (3); A pressure plate assembly (5), located above the needle plate assembly (3); A carrier assembly (1) is suitable for placing a PCBA board, the carrier assembly (1) is slidably connected to the framework assembly (4), and the height of the carrier assembly (1) is located between the needle plate assembly (3) and the pressure plate assembly (5); An upper cover assembly (7) is connected to the frame assembly (4), and the upper cover assembly (7) is suitable for covering the pressure plate assembly (5), the needle plate assembly (3), and the carrier plate assembly (1) inside; The printed circuit board assembly test device has a first state in which the carrier assembly (1) slides to the outside of the upper cover assembly (7), the PCBA board is placed, and the code scanning assembly (8) automatically scans and reads the two-dimensional code information on the PCBA board and transmits it back; a second state in which the carrier assembly (1) slides to above the needle plate assembly (3) inside the upper cover assembly (7), the pressure plate assembly (5) moves downward, and the carrier assembly (1) is pressed downward, so that the test point of the PCBA board contacts the corresponding probe (27) to perform the test; and a third state in which the pressure plate assembly (5) moves upward, the test point is separated from the probe (27), the carrier assembly (1) slides to the outside of the upper cover assembly (7), and the PCBA board is removed.

2. The printed circuit board assembly test device according to claim 1, characterized in that: The carrier board component (1) is suitable for placing a plurality of PCBA boards; the code scanning component (8) is suitable for simultaneously scanning and reading the two-dimensional code information on the plurality of PCBA boards.

3. The printed circuit board assembly test device according to claim 1, characterized in that: Also includes: A sensor component is arranged on the carrier component (1), and the sensor component is suitable for detecting whether a PCBA board is placed on the carrier component (1) and detecting whether the PCBA board is in a flat state.

4. The printed circuit board assembly test device according to any one of claims 1 to 3, characterized in that: The code scanning component (8) comprises: A code scanner (60), adapted to scan and read the two-dimensional code information on the PCBA board and transmit it back; A mounting plate (61), the barcode scanner (60) being mounted on the mounting plate (61); A first rod (62) is arranged horizontally, and the mounting plate (61) is mounted on the first rod (62) via a first clamping block (63); The second rod (64) is arranged horizontally, and the second rod (64) is perpendicular to the first rod (62); the second rod (64) is connected to the first rod (62) via a second clamping block (73); The third rod (74) is arranged in a vertical direction, and the third rod (74) is perpendicular to the second rod (64); the third rod (74) is connected to the second rod (64) through a third clamp (76); size scale values ​​are marked on the second rod (64) and the third rod (74); the code scanning assembly (8) is suitable for adjusting the position of the code scanner (60) by adjusting the clamping positions of the first clamp (63), the second clamp (73) and the third clamp (76).

5. The printed circuit board assembly test device according to any one of claims 1 to 3, characterized in that: The code scanning component (8) comprises: A robot arm, adapted to suck up a PCBA board through a suction cup in a first state and place the board on the carrier assembly (1), and to remove the PCBA board through the suction cup in a third state; The camera is arranged on the robot arm, and the camera is suitable for scanning and reading the two-dimensional code information on the PCBA board and transmitting it back.

6. The printed circuit board assembly test device according to any one of claims 1 to 3, characterized in that: The architecture component (4) comprises: Bottom plate (31); A first power member (34), the top end of which is connected to the pressure plate assembly (5), and the first power member (34) is suitable for driving the pressure plate assembly (5) to move up and down; A slider (35) is disposed on the bottom plate (31), and the slider (35) is slidably connected to the carrier plate assembly (1); A second power member (40) is disposed on the bottom plate (31), and the second power member (40) is connected to the carrier assembly (1), and the second power member (40) is suitable for driving the carrier assembly (1) to slide to the inside or outside of the upper cover assembly (7); A buffer mechanism is arranged on the bottom plate (31), and the buffer mechanism is located at the extreme position of the carrier plate assembly (1) inside the upper cover assembly (7).

7. The printed circuit board assembly test device according to claim 6, characterized in that: The carrier assembly (1) comprises: A fixed plate (16) has a slide rail (36) on its bottom surface, wherein the slide rail (36) is slidably connected to the slider (35); and the fixed plate (16) is connected to a second power member (40); A carrier body (12) is suitable for placing the PCBA board, and the carrier body (12) is located above the fixing plate (16); at least two alignment holes (65) are provided on the carrier body (12) along the diagonal direction; a third guide column (29) corresponding to the position of the alignment hole (65) is provided on the needle plate assembly (3), and the alignment hole (65) and the third guide column (29) are slidably matched, which is suitable for ensuring that the test point of the PCBA board corresponds to the position of the corresponding probe (27); an elastic member, disposed between the fixing plate (16) and the carrier body (12), the elastic member being suitable for applying an upward elastic restoring force to the carrier body (12) in the third state; A second guide column (14) is vertically arranged on the fixing plate (16), and the carrier body (12) is slidably connected to the second guide column (14); At least one limiting member (15) is arranged between the fixing plate (16) and the carrier body (12), and the limiting member (15) is suitable for limiting the maximum height of the carrier body (12) when it descends.

8. The printed circuit board assembly test device according to any one of claims 1 to 3, characterized in that: The upper cover assembly (7) comprises: An upper cover outer frame (54) is arranged on the outer periphery; A cover plate (56) is located in the middle, and the cover plate (56) is detachably connected to the upper cover outer frame (54), and a handle (55) is provided on the top surface of the cover plate (56).

9. The printed circuit board assembly test device according to any one of claims 1 to 3, characterized in that: Also includes: The bottom frame assembly (6) is located below the frame assembly (4), and the edge of the bottom frame assembly (6) is rotatably connected to the edge of the frame assembly (4). When the frame assembly (4) is rotated to an inclined state, the frame assembly (4) is supported by a support rod provided on the bottom frame assembly (6) to maintain the inclined state of the frame assembly (4).

10. A printed circuit board assembly test method, using the printed circuit board assembly test device according to any one of claims 1 to 9, characterized in that: include: The carrier assembly (1) slides to the outside of the upper cover assembly (7) to place the PCBA board, and the code scanning assembly (8) scans and reads the QR code information on the PCBA board and transmits it back; The carrier assembly (1) slides to the top of the needle plate assembly (3) inside the upper cover assembly (7), and the pressure plate assembly (5) moves downward to press the carrier assembly (1) downward, so that the test points of the PCBA board contact with the corresponding probes (27) to perform the test; The pressure plate assembly (5) moves upward, the test point is disengaged from the probe (27), the carrier assembly (1) slides to the outside of the upper cover assembly (7), and the PCBA board is removed.

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