Automatic testing device for circuit board production

Abstract

The utility model discloses an automatic test device for circuit board production, comprising a test box, the top of which is provided with a bearing assembly; stacking frames are arranged on the two sides of the upper surface of the testing box, a transferring mechanism is arranged in an inner cavity of the bearing assembly, and a driving mechanism is arranged at one end of the transferring mechanism and comprises a pushing assembly arranged at one end of the transferring mechanism; the moving assembly is used for enabling the transfer mechanism to intermittently rotate along an arc-shaped route; the connecting block is arranged in the middle of the moving assembly; a testing mechanism is arranged in the middle of one side of the testing box. Through the arrangement mode that the stacking frame, the transferring mechanism and the driving mechanism are matched, stable testing can be conveniently carried out on the circuit boards, the circuit boards which are not detected and the circuit boards which are detected can be stacked respectively, consumption of manpower and resources is reduced, pressing damage to the circuit boards is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, in particular to an automatic testing device for circuit board production. Background Art

[0002] Circuit boards can be called printed circuit boards. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Automatic detection technology for circuit boards has been applied with the introduction of surface mounting technology for circuit boards, and has rapidly increased the packaging density of circuit boards. Currently, there are two common methods for detecting conventional circuit boards: the bed of nails test and the probe test.

[0003] Application No. 201921417992.2 discloses an automatic circuit board testing device, which works in conjunction with a test fixture, and includes a base, a plug-in assembly line, a pressure-bearing mechanism, a downward pressure mechanism, a stamping mechanism and a blocking mechanism; the plug-in assembly line is arranged on the base, the pressure-bearing mechanism is arranged between the two tracks of the plug-in assembly line, and the downward pressure mechanism is arranged above the pressure-bearing mechanism; blocking mechanisms are arranged at the input and output ends of the plug-in assembly line corresponding to the pressure-bearing mechanism; the stamping mechanism is arranged on the plug-in assembly line behind the pressure-bearing mechanism; through the above application settings, the circuit board is automatically loaded and unloaded from the pressure-bearing mechanism on the plug-in assembly line, and the assembly line operation is realized through the plug-in assembly line, and there is no need for the tester to perform repetitive mechanical work of placing and taking down the circuit board to the automatic circuit board testing device.

[0004] However, when testing the circuit boards, there is a need to place the produced circuit boards equidistantly on the plug-in assembly line one by one, and later the tested circuit boards need to be stacked one by one. If they are placed manually, it will consume a lot of manpower. If they are placed by a robot, the test device needs to be combined with another robot equipment to perform the test, which consumes a lot of resources. In addition, the pressing mechanism performs a direct pressing test on the circuit board. The pressing force is different from the gravity pressing of the circuit board. The circuit board is directly pressed down, resulting in no supporting space for the components on the circuit board, which is easy to cause the components on the circuit board to be crushed and damaged, resulting in a decrease in the test pass rate of the circuit board, affecting the practicality of the automatic testing device. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic testing device for circuit board production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic test device for circuit board production, comprising: a test box, a bearing assembly is arranged on the top of the test box;

[0007] Stacking racks are fixedly connected to both sides of the upper surface of the test box. The inner cavity of the bearing assembly is provided with a transfer mechanism for adsorbing and moving the circuit board in the up and down directions. A driving mechanism is provided at one end of the transfer mechanism, and the driving mechanism includes:

[0008] A pushing component, wherein the pushing component is arranged at one end of the transfer mechanism;

[0009] A moving assembly, the moving assembly is used to transfer the mechanism to intermittently rotate in an arc path;

[0010] A connecting block, the connecting block being arranged in the middle of the moving component;

[0011] A positioning pin is used for vertical connection between the connecting block and the pushing assembly. A testing mechanism is arranged in the middle of one side of the testing box.

[0012] Preferably, the bearing assembly comprises:

[0013] A carrying platform, the carrying platform is fixed above the top of the test box;

[0014] A controller is fixed on the upper surface of the supporting platform.

[0015] Preferably, the transfer mechanism comprises:

[0016] A bearing rod, the bearing rod is rotatably arranged in the inner cavity of the bearing platform, and the pushing component and the moving component are both arranged at one end of the bearing rod;

[0017] A first electric telescopic rod, which is fixedly inserted into the other end of the bearing rod in a vertical direction;

[0018] A suction cup, the suction cup being fixedly connected to the telescopic end of the first electric telescopic rod;

[0019] A pneumatic assembly, wherein the pneumatic assembly is arranged at the other end of the bearing rod;

[0020] A rotating shaft, the rotating shaft is fixedly inserted into one end of the bearing rod;

[0021] A half gear is fixed to one end of the outer wall of the bearing rod.

[0022] Preferably, the pneumatic assembly comprises:

[0023] An air pump and an air pipe, wherein the air pump is fixed to the upper surface of the other end of the bearing rod, and the air pipe is fixed between the air pump and the suction cup.

[0024] Preferably, the top of the rotating shaft is rotatably connected to the other side of the supporting platform through a bearing, and the air pump is used for sucking and releasing the gas in the inner cavity of the suction cup.

[0025] Preferably, the moving component comprises:

[0026] A plurality of polished rods, both ends of which are parallel to each other and fixed on both sides of the bearing platform;

[0027] A movable plate, wherein the movable plate is slidably interlaced with the outer walls of the plurality of polished rods, and the connecting block is fixed at the middle of the movable plate;

[0028] A first gear block group, wherein the first gear block group is fixed to one end of the moving plate;

[0029] The second gear block group is fixed to the other end of the moving plate, and the first gear block group and the second gear block group are respectively meshed and connected with the outer wall of the half gear.

[0030] Preferably, the pushing assembly comprises:

[0031] A second electric telescopic rod, one end of which is fixed to one side of the bottom of the supporting platform;

[0032] A support frame, the support frame is fixed to the other end of the second electric telescopic rod; a push block, the push block is fixed to the telescopic end of the second electric telescopic rod.

[0033] Preferably, the bottom end of the support frame is fixedly connected to the upper surface of the test box, and the push block is slidably and interlacedly connected to the outer wall of the positioning pin.

[0034] Preferably, the testing mechanism comprises:

[0035] A test hole, the test hole being opened on the upper surface of the test box;

[0036] A test needle bed, the test needle bed is fixed to the top of the inner wall of the test box;

[0037] A rubber pad is fixed to the upper surface of the test box.

[0038] Preferably, the test needle bed is arranged in the inner cavity of the test hole, and the inner cavity of the rubber pad is relatively connected to the inner cavity of the test hole.

[0039] Technical effects and advantages of the utility model:

[0040] The utility model uses a testing mechanism to facilitate stable testing of circuit boards through the coordinated arrangement of a stacking rack, a transfer mechanism and a driving mechanism, and through the arrangement of the driving mechanism, untested circuit boards and tested circuit boards can be stacked separately, thereby reducing the consumption of manpower and resources, avoiding strong pressing of the circuit boards, reducing pressing damage on the circuit boards, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0042] Figure 2 It is a schematic diagram of the top structure of the load-bearing rod of the utility model.

[0043] Figure 3 It is a schematic diagram of the overall side sectional structure of the utility model.

[0044] Figure 4 It is a schematic diagram of the partial explosion structure at the load-bearing rod of the utility model.

[0045] Figure 5 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0046] Figure 6 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0047] In the figure: 1. test box; 2. load-bearing assembly; 21. load-bearing platform; 22. controller; 3. stacking rack; 4. transfer mechanism; 41. load-bearing rod; 42. first electric telescopic rod; 43. suction cup; 44. pneumatic assembly; 441. air pump; 442. air pipe; 45. rotating shaft; 46. half gear; 5. driving mechanism; 51. pushing assembly; 511. second electric telescopic rod; 512. supporting frame; 513. pushing block; 52. moving assembly; 521. light rod; 522. moving plate; 523. first gear block group; 524. second gear block group; 53. connecting block; 54. positioning pin; 6. testing mechanism; 61. testing hole; 62. testing needle bed; 63. rubber pad. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] The utility model provides Figure 1-6 The circuit board production automatic testing device shown includes: a test box 1, which is a rectangular box structure. A carrying component 2 is arranged on the top of the test box 1. The carrying component 2 includes: a carrying platform 21 and a controller 22. The carrying platform 21 is fixed above the top of the test box 1, and the controller 22 is fixed to the upper surface of the carrying platform 21. The carrying platform 21 is fixed by a rectangular plate and four supporting leg structures, which is convenient for supporting the top of the test box 1 and forming a protective space on the upper surface of the test box 1.

[0050] Furthermore, stacking racks 3 are fixedly connected to both sides of the upper surface of the test box 1. The size and shape of the stacking racks 3 are not restricted, which is convenient for stably carrying the circuit boards of fixed specifications produced, so that the circuit boards can be stably stacked together, and the components on the circuit boards are fixed structures, and the components on the circuit boards are generally metal structures. In the absence of external forces, the stacking of the circuit boards will not cause damage.

[0051] Furthermore, the inner cavity of the bearing assembly 2 is provided with a transfer mechanism 4 for adsorbing and moving the circuit board in the up and down directions. The transfer mechanism 4 includes: a bearing rod 41, a first electric telescopic rod 42, a suction cup 43, a pneumatic assembly 44, a rotating shaft 45 and a half gear 46. The bearing rod 41 is rotatably arranged in the inner cavity of the bearing platform 21. The pushing assembly 51 and the moving assembly 52 are both arranged at one end of the bearing rod 41. The first electric telescopic rod 42 is fixedly inserted in the other end of the bearing rod 41 in a vertical direction. The suction cup 43 is fixedly connected to the telescopic end of the first electric telescopic rod 42. The rotating shaft 45 is fixedly inserted in one end of the bearing rod 41. The top of the rotating shaft 45 is rotatably inserted and connected with the other side of the bearing platform 21 through a bearing. The half gear 46 is fixed to one end of the outer wall of the bearing rod 41. The pneumatic assembly 44 is arranged at the other end of the bearing rod 41. The pneumatic assembly 44 includes: an air pump 441 and an air pipe 442. The air pump 441 is fixed to the bearing On the upper surface of the other end of the carrying rod 41, the air pump 441 is a micro-suction integrated pump body, and the air pipe 442 is fixed between the air pump 441 and the suction cup 43. The air pump 441 is used to absorb and release the gas in the inner cavity of the suction cup 43. Through the meshing rotation of the half gear 46, the carrying rod 41 can be moved to the top of the stacking rack 3 of the untested circuit board, and the first electric telescopic rod 42 is controlled to make the suction cup 43 fit the circuit board on the top of the stacking rack 3. The air pump 441 is driven to discharge the gas in the suction cup 43 through the air pipe 442, so that the suction cup 43 can adsorb the circuit board. After the carrying rod 41 is moved to the testing mechanism 6 for testing, it is moved to the top of the stacking rack 3 for testing the circuit board, and the gas is returned to the inner cavity of the suction cup 43 by the reverse driving of the air pump 441, so that the suction of the suction cup 43 on the circuit board is released, so that the circuit board after the inspection can be stacked again in the inner cavity of the stacking rack 3 that has been inspected.

[0052] Furthermore, a driving mechanism 5 is provided at one end of the transfer mechanism 4, and the driving mechanism 5 includes: a pushing component 51, a moving component 52, a connecting block 53 and a positioning pin 54. The pushing component 51 is arranged at one end of the transfer mechanism 4, the moving component 52 is used for the transfer mechanism 4 to intermittently rotate in an arc path, the connecting block 53 is arranged in the middle of the moving component 52, and the positioning pin 54 is used for the vertical connection between the connecting block 53 and the pushing component 51. Through the positioning pin 54, the pushing component 51 can drive the moving component 52 to perform reciprocating movement.

[0053] Specifically, the moving assembly 52 includes: a plurality of light rods 521, a moving plate 522, a first tooth block group 523 and a second tooth block group 524. The two ends of the plurality of light rods 521 are parallel and fixed to the two sides of the bearing platform 21. The moving plate 522 is slidably connected with the outer walls of the plurality of light rods 521. The light rods 521 facilitate the position of the moving plate 522. The connecting block 53 is fixed to the middle part of the moving plate 522. The first tooth block group 523 is fixed to one end of the moving plate 522. The second tooth block group 524 is fixed to the first end of the moving plate 522. 524 is fixed to the other end of the movable plate 522, and the first tooth block group 523 and the second tooth block group 524 are respectively meshed and connected with the outer wall of the half gear 46. By moving the connecting block 53, the movable plate 522 moves, so that the first tooth block group 523 and the second tooth block group 524 can be intermittently meshed with the half gear 46, so as to facilitate the rotation of the half gear 46 at intervals, and through the reciprocating motion of the movable plate 522, the supporting rod 41 can stably reciprocate around the rotating shaft 45 as the axis.

[0054] Specifically, the pushing assembly 51 includes: a second electric telescopic rod 511, a support frame 512 and a pushing block 513. One end of the second electric telescopic rod 511 is fixed to one side of the bottom of the supporting platform 21, the support frame 512 is fixed to the other end of the second electric telescopic rod 511, and the pushing block 513 is fixed to the telescopic end of the second electric telescopic rod 511. The bottom end of the support frame 512 is fixedly connected to the upper surface of the test box 1. The support frame 512 facilitates the stability of the position of the second electric telescopic rod 511. The pushing block 513 is slidably and interlacedly connected with the outer wall of the positioning pin 54. Through the drive of the second electric telescopic rod 511, the positioning pin 54 pushes and pulls the moving plate 522 on the connecting block 53 back and forth, so that the moving plate 522 can be stably moved on the light rod 521.

[0055] Furthermore, a test mechanism 6 is provided in the middle of one side of the test box 1, and the test mechanism 6 includes: a test hole 61, a test needle bed 62 and a rubber pad 63. The test hole 61 is opened on the upper surface of the test box 1, and the test needle bed 62 is fixed to the top of the inner wall of the test box 1. The controller 22 is electrically connected to the test needle bed 62, the first electric telescopic rod 42, the second electric telescopic rod 511 and the air pump 441 through an external power supply, so that the test needle bed 62, the first electric telescopic rod 42, the second electric telescopic rod 511 and the air pump 441 can be driven and controlled respectively by the controller 22. The test needle bed 62 is provided in the inner cavity of the test hole 61, and the rubber pad 63 is fixed. On the upper surface of the test box 1, the inner cavity of the rubber pad 63 is relatively connected to the inner cavity of the test hole 61. By driving the first electric telescopic rod 42, the circuit board adsorbed by the suction cup 43 can be moved to the inner cavity of the test hole 61. Through the rubber pad 63, the peripheral non-component part of the circuit board can be tightly fitted with the upper surface of the rubber pad 63, so that the components on the lower surface of the circuit board can be stably in the inner cavity of the test hole 61, and the test components on the circuit board can contact the probe on the test needle bed 62, so that the test needle bed 62 can perform circuit testing on the circuit board, thereby improving the simplicity and stability of the test, reducing the pressure loss on the circuit board, and improving the practicality of the device.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit board production automatic testing device, comprising: A test box (1), wherein a bearing assembly (2) is arranged on the top of the test box (1); The invention is characterized in that: both sides of the upper surface of the test box (1) are fixedly connected with stacking racks (3); the inner cavity of the bearing assembly (2) is provided with a transfer mechanism (4) for adsorbing and moving the circuit board in the up and down directions; one end of the transfer mechanism (4) is provided with a driving mechanism (5), and the driving mechanism (5) comprises: A pushing component (51), wherein the pushing component (51) is arranged at one end of the transfer mechanism (4); A moving assembly (52), the moving assembly (52) is used to transfer the mechanism (4) to intermittently rotate in an arc path; A connecting block (53), wherein the connecting block (53) is arranged in the middle of the moving component (52); A positioning pin (54) is used for vertically connecting the connecting block (53) and the pushing assembly (51). A testing mechanism (6) is provided in the middle of one side of the testing box (1).

2. The circuit board production automatic testing device according to claim 1, characterized in that: The bearing assembly (2) comprises: A carrying platform (21), wherein the carrying platform (21) is fixed above the top of the test box (1); A controller (22), wherein the controller (22) is fixed on the upper surface of the supporting platform (21).

3. The automatic testing device for circuit board production according to claim 2, characterized in that: The transfer mechanism (4) comprises: A bearing rod (41), the bearing rod (41) being rotatably disposed in the inner cavity of the bearing platform (21), and the pushing component (51) and the moving component (52) being both disposed at one end of the bearing rod (41); A first electric telescopic rod (42), the first electric telescopic rod (42) being fixedly inserted into the other end of the bearing rod (41) in a vertical direction; A suction cup (43), wherein the suction cup (43) is fixedly connected to the telescopic end of the first electric telescopic rod (42); A pneumatic assembly (44), wherein the pneumatic assembly (44) is arranged at the other end of the bearing rod (41); A rotating shaft (45), wherein the rotating shaft (45) is fixedly inserted into one end of the bearing rod (41); A half gear (46) is fixed to one end of the outer wall of the bearing rod (41).

4. The circuit board production automatic testing device according to claim 3, characterized in that: The pneumatic assembly (44) comprises: An air pump (441) and an air pipe (442), wherein the air pump (441) is fixed to the upper surface of the other end of the bearing rod (41), and the air pipe (442) is fixed between the air pump (441) and the suction cup (43).

5. The automatic testing device for circuit board production according to claim 4, characterized in that: The top of the rotating shaft (45) is rotatably connected to the other side of the supporting platform (21) through a bearing, and the air pump (441) is used to suck and release the gas in the inner cavity of the suction cup (43).

6. The circuit board production automatic testing device according to claim 3, characterized in that: The moving assembly (52) comprises: A plurality of polished rods (521), the two ends of the plurality of polished rods (521) being in a parallel state and fixed on both sides of the bearing platform (21); a movable plate (522), the movable plate (522) being slidably interlaced with the outer walls of the plurality of polished rods (521), and the connecting block (53) being fixed on the middle part of the movable plate (522); A first tooth block group (523), wherein the first tooth block group (523) is fixed to one end of the moving plate (522); The second gear block group (524) is fixed to the other end of the movable plate (522), and the first gear block group (523) and the second gear block group (524) are respectively meshed and connected with the outer wall of the half gear (46).

7. The circuit board production automatic testing device according to claim 6, characterized in that: The pushing assembly (51) comprises: A second electric telescopic rod (511), one end of the second electric telescopic rod (511) being fixed to one side of the bottom of the supporting platform (21); A support frame (512), wherein the support frame (512) is fixed to the other end of the second electric telescopic rod (511); A pushing block (513), wherein the pushing block (513) is fixed to the telescopic end of the second electric telescopic rod (511).

8. The circuit board production automatic testing device according to claim 7, characterized in that: The bottom end of the support frame (512) is fixedly connected to the upper surface of the test box (1), and the pushing block (513) is slidably and interlacedly connected to the outer wall of the positioning pin (54).

9. The circuit board production automatic testing device according to claim 2, characterized in that: The testing mechanism (6) comprises: A test hole (61), wherein the test hole (61) is opened on the upper surface of the test box (1); A test needle bed (62), wherein the test needle bed (62) is fixed to the top of the inner wall of the test box (1); A rubber pad (63), wherein the rubber pad (63) is fixed to the upper surface of the test box (1).

10. The circuit board production automatic testing device according to claim 9, characterized in that: The test needle bed (62) is arranged in the inner cavity of the test hole (61), and the inner cavity of the rubber pad (63) is arranged to be relatively connected with the inner cavity of the test hole (61).

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