Multi-station PCB testing machine

Abstract

The utility model provides a multi-station PCB (printed circuit board) testing machine which comprises a testing machine workbench, a finished product conveying module, a defective product conveying module, a multi-degree-of-freedom material rotating mechanical arm, a testing machine controller and at least two testing single bodies are arranged on the testing machine workbench, a feeding area and a discharging area are arranged on the testing machine workbench, and the finished product conveying module, the defective product conveying module, the multi-degree-of-freedom material rotating mechanical arm, the testing machine controller and the testing single bodies are arranged on the testing machine workbench. The finished product conveying module and the defective product conveying module are arranged in the discharging area. According to the utility model, the problem of low testing efficiency of a PCB testing machine in the prior art can be solved, by using the product structure, the plurality of testing monomers are adjacently arranged around the testing machine workbench, and materials to be tested are placed on the idle testing machine one by one through the multi-degree-of-freedom material rotating mechanical arm for testing, so that the testing efficiency is improved. According to the invention, a conventional multi-project integrated testing machine is prevented from being used for testing, the testing efficiency is improved, the automation level of equipment is ensured, the economic benefit of testing and the use experience of operators are improved, and the competitiveness of enterprises is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a multi-station PCB board testing machine. Background Art

[0002] With the progress of society and the development of technology, people's requirements for product quality are getting higher and higher. The PCB board, also known as the printed circuit board, is an important and indispensable component in electronic industrial products.

[0003] In order to ensure the ex-factory quality of PCB boards, testing is required before leaving the factory. The testing machine cooperates with the loading machine for loading, and sequentially tests the PCB boards to be detected. There are many existing testing types for PCB boards, and there are also multiple testing items in the same type of testing. In the existing same type of testing, a multi-item integrated testing machine is generally used. Only after the previous PCB board has completed multiple items of testing can the next PCB board be tested. The testing efficiency is low, and the testing waiting time is too long, which cannot meet the needs of enterprises to improve economic benefits and is not conducive to enhancing the competitiveness of enterprises. Summary of the Utility Model

[0004] To solve the problems in the prior art, the utility model provides a multi-station PCB board testing machine, which solves the problem of low testing efficiency in the prior art of PCB board testing machines.

[0005] A multi-station PCB board testing machine of the utility model includes a testing machine workbench, on which a finished product conveying module, a defective product conveying module, a multi-degree-of-freedom material transfer manipulator, a testing machine controller and testing units are arranged. The number of testing units is at least two, and multiple testing units are arranged adjacent to each other around the testing machine workbench. A loading area and an unloading area are arranged on the testing machine workbench. The finished product conveying module and the defective product conveying module are arranged in the unloading area. The multi-degree-of-freedom material transfer manipulator can transfer the materials in the loading area to different testing units for testing.

[0006] The utility model is further improved in that the loading area and the unloading area are respectively arranged at both ends of the testing machine workbench. The multi-degree-of-freedom material transfer manipulator is arranged between the loading area and the unloading area. The two sides of the multi-degree-of-freedom material transfer manipulator are testing areas, and multiple testing units are arranged in the testing areas.

[0007] The utility model is further improved in that the finished product conveying module includes a first finished product conveying component and a second finished product conveying component, which are arranged in parallel. The defective product conveying module is a defective product conveying component, which is arranged between the first finished product conveying component and the second finished product conveying component.

[0008] The present utility model is further improved. The first finished product conveying assembly and the second finished product conveying assembly both include a finished product conveying mounting frame and a finished product conveying pulley. The defective product conveying assembly includes a finished product conveying mounting frame, a defective product conveying pulley, and a material receiving controller. The material receiving controller is arranged at one end of the defective product conveying pulley away from the multi-degree-of-freedom material transfer robotic arm.

[0009] The present utility model is further improved. The test unit includes a test unit controller and at least two test stations. Test carriers are arranged on the test stations.

[0010] The present utility model is further improved and further includes a test unit locking assembly. The test unit locking assembly includes a connecting plate, a driving mounting frame, and a driving clamping member. The connecting plate is fixedly connected to the test unit. The driving mounting frame is fixedly arranged on the test machine workbench. A driving mounting position is arranged on the driving mounting frame for the cooperation of the driving clamping member to be installed. A connecting block is arranged on the connecting plate. The driving clamping member includes a driving cylinder and a clamping block. The clamping block is fixedly arranged on the driving cylinder. The driving cylinder can drive the clamping block to move linearly. A clamping hole that cooperates with the clamping block for clamping is arranged on the connecting block.

[0011] The present utility model is further improved. The number of connecting blocks is two, and the number of clamping blocks is also two. The two groups of connecting blocks are respectively arranged at both ends of the connecting plate. The two clamping blocks are respectively arranged at the rear end and the moving end of the driving cylinder. Displacement limiting grooves are arranged on both clamping blocks. Limiting rods that cooperate with the displacement limiting grooves of the two clamping blocks are respectively arranged on the driving mounting frame. The limiting rods are arranged in the displacement limiting grooves. The driving cylinder can cooperate with the limiting rods to control the two clamping blocks to be clamped into or away from the corresponding clamping holes.

[0012] The present utility model is further improved. The multi-degree-of-freedom material transfer robotic arm includes a robotic arm main body, a material picking module, and a test vision camera. The robotic arm main body is composed of a robotic arm mounting seat, a plurality of rotating shafts, and a plurality of swinging shafts.

[0013] The present utility model is further improved. The material picking module includes a material picking mounting frame and a plurality of material picking suction cup assemblies. The material picking suction cup assemblies are fixedly arranged on the material picking mounting frame. The material picking suction cup assembly includes a material picking suction cup lifting cylinder, a suction cup mounting plate, and a plurality of vacuum suction cups.

[0014] The present utility model is further improved. An equipment protection housing is arranged on the test machine workbench. The test machine controller includes a mounting arm, a display screen, and a control button assembly. The display screen and the control button assembly are fixedly arranged on the mounting arm. The mounting arm is fixedly arranged on the equipment protection housing.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a multi-station PCB board testing machine. With this structure, it can effectively solve the problem of low testing efficiency in the existing PCB board testing machines. By using this product structure, multiple testing units are arranged adjacent to each other around the testing machine workbench, and the materials to be tested are placed one by one in the idle testing machines through a multi-degree-of-freedom material transfer robotic arm, avoiding the traditional use of a multi-item integrated testing machine for testing, improving the testing efficiency, ensuring the automation level of the equipment, while also improving the economic benefits of testing and the operating experience of the operators, which is conducive to enhancing the competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the multi-station PCB board testing machine;

[0018] Figure 2 It is a schematic diagram of the structure of a single testing machine;

[0019] Figure 3 It is a schematic diagram of the internal structure of the multi-station PCB board testing machine;

[0020] Figure 4 It is a schematic diagram of the structure of a multi-degree-of-freedom material transfer robotic arm;

[0021] Figure 5 It is a schematic diagram of the structure of a testing unit locking assembly;

[0022] Figure 6 It is a schematic diagram of the structure of a clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs; the terms used in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model; the terms "including" and "having" and any variations thereof in the description and claims of the present utility model and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of the present utility model or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0024] References to "embodiments" in the present utility model mean that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present utility model. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an exclusive, independent, or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present utility model may be combined with other embodiments.

[0025] To enable those skilled in the art of this technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] As Figure 1-6 shown, a multi-station PCB board testing machine of the present utility model includes a testing machine workbench 1. A finished product feeding module, a defective product feeding module, a multi-degree-of-freedom material transfer robotic arm 2, a testing machine controller, and testing units are arranged on the testing machine workbench 1. The number of testing units is at least two, and multiple testing units are arranged adjacent to each other around the testing machine workbench 1. A loading area 101 and an unloading area 102 are arranged on the testing machine workbench 1, and the finished product feeding module and the defective product feeding module are arranged in the unloading area 102.

[0027] Through the arrangement of the multi-degree-of-freedom material transfer robotic arm 2, the materials in the loading area 101 can be effectively transferred to different testing units for testing, effectively reducing the waiting time for testing, and each testing unit conducts testing simultaneously.

[0028] Obviously, the items tested by multiple testing units can be the same or different. After the items are tested, the PCB board after testing a certain item is then moved to another testing unit for testing through the multi-degree-of-freedom material transfer robotic arm 2, which can be determined according to the testing requirements of customers. Multiple testing units conduct testing together, which can effectively avoid testing one by one using a multi-item integrated testing machine and improve the testing efficiency.

[0029] The loading area 101 and the unloading area 102 are respectively arranged at both ends of the testing machine workbench 1. The multi-degree-of-freedom material transfer robotic arm 2 is arranged between the loading area 101 and the unloading area 102. The two sides of the multi-degree-of-freedom material transfer robotic arm 2 are testing areas, and multiple testing units are arranged in the testing areas.

[0030] Through this setting position, interference between the loading area 101, the unloading area 102, and the testing area can be effectively avoided, and the material transfer efficiency of the multi-degree-of-freedom material transfer robotic arm 2 can be effectively improved.

[0031] Six testing positions 103 are arranged in the testing area, and the number of testing units is also six, which are respectively arranged in the six testing positions 103.

[0032] The finished product material transporting module includes a first finished product material transporting component 3 and a second finished product material transporting component 4. The first finished product material transporting component 3 and the second finished product material transporting component 4 are arranged in parallel. The defective product material transporting module is a defective product material transporting component 5, and the defective product material transporting component 5 is arranged between the first finished product material transporting component 3 and the second finished product material transporting component 4.

[0033] Through the settings of the first finished product material transporting component 3 and the second finished product material transporting component 4, it is possible to effectively cooperate to transport the tested PCB boards to other types of testing machines, improving the testing efficiency of the entire testing process.

[0034] Both the first finished product material transporting component 3 and the second finished product material transporting component 4 include a finished product material transporting mounting frame and a finished product material transporting pulley. The defective product material transporting component 5 includes a finished product material transporting mounting frame, a defective product material transporting pulley, and a material collecting controller 501. The material collecting controller 501 is arranged at one end of the defective product material transporting pulley away from the multi-degree-of-freedom material transferring robotic arm 2.

[0035] Through the settings of the finished product material transporting pulley and the defective product material transporting pulley, it is possible to efficiently transport products. Through the setting of the material collecting controller 501, it is possible to collect the materials left by the defective product material transporting pulley, avoiding the situation that there are still materials left after closing the defective product material transporting pulley.

[0036] The test unit includes a test unit controller 6 and a test station 7. The number of test stations 7 is at least two, and test carriers are arranged on the test stations 7.

[0037] Through the settings of multiple test stations 7, it is possible to cooperate with the multi-degree-of-freedom material transferring robotic arm 2 for material placement.

[0038] This multi-station PCB board testing machine further includes a test unit locking component 8. The test unit locking component 8 includes a connecting plate 81, a driving mounting frame 82, and a driving clamping member. The connecting plate 81 is fixedly connected to the test unit. The driving mounting frame 82 is fixedly arranged on the testing machine workbench 1. A driving mounting position for cooperating with the driving clamping member is arranged on the driving mounting frame 82. A connecting block 811 is arranged on the connecting plate 81. The driving clamping member includes a driving cylinder 83 and a clamping block 84. The clamping block 84 is fixedly arranged on the driving cylinder 83. A clamping hole for cooperating with the clamping block 84 is arranged on the connecting block 811.

[0039] Through the setting of the driving cylinder 83, it is possible to effectively drive the clamping block 84 to move linearly, so that the clamping block 84 is inserted into the clamping hole to realize the clamping of the test unit to the testing machine workbench 1.

[0040] A proximity switch sensor is arranged on the driving mounting frame 82. When the connecting plate 81 moves to the specified position, the driving cylinder 83 is controlled to work.

[0041] There are two connecting blocks 811 and also two clamping blocks 84. The two groups of connecting blocks 811 are respectively arranged at both ends of the connecting plate 81, and the two clamping blocks 84 are respectively arranged at the rear end and the moving end of the driving cylinder 83. Displacement limiting grooves 841 are arranged on both of the two clamping blocks 84, and limiting rods that cooperate with the displacement limiting grooves 841 of the two clamping blocks 84 are respectively arranged on the driving mounting frame 82. The limiting rods are arranged in the displacement limiting grooves 841, and the driving cylinder 83 can cooperate with the limiting rods to control the two clamping blocks 84 to be inserted into or away from the corresponding clamping holes.

[0042] Through the arrangement of the two connecting blocks 811, while enabling the positioning of the connecting plate 81 and the driving mounting frame 82, the clamping stability between the two can be further improved.

[0043] After the connecting plate 81 moves to the designated position, the driving cylinder 83 operates, and the moving end of the driving cylinder 83 pushes the clamping block 84 on the moving end into the corresponding clamping hole.

[0044] Regarding the clamping process:

[0045] After the clamping block 84 moves to the designated position, the moving end of the driving cylinder 83 pushes the clamping block 84 on the moving end to move in the front-end direction until the clamping block 84 moves to the maximum distance, completing the clamping on one side. Due to the arrangement of the limiting rod and the displacement limiting groove 841, the movement of the clamping block 84 is restricted. When the moving end of the driving cylinder 83 continues to move, the driving cylinder 83 body moves towards the other end, and the rear end of the driving cylinder 83 moves towards the rear end, causing the clamping block 84 at the rear end to be inserted into the corresponding clamping hole, completing the clamping on both sides.

[0046] Regarding the process of the contact clamping state:

[0047] The moving end of the driving cylinder 83 retracts, and the clamping block 84 on the moving end will be pulled back. After being pulled back to the designated distance, the clamping block 84 completely disengages from the connecting plate 81. At the same time, the displacement limiting groove 841 on the clamping block 84 cooperates with the corresponding limiting rod, restricting the backward movement of the clamping block 84. At this time, when the moving end of the driving cylinder 83 continues to retract, the driving cylinder 83 body retracts towards the front end, and the driving cylinder 83 drives the clamping block 84 at the rear end to retract, causing the clamping block 84 at the rear end to withdraw from the corresponding clamping hole, completing the contact of the clamping state on both sides.

[0048] The multi-degree-of-freedom material transfer robotic arm 2 includes a robotic arm main body, a material picking module, and a test vision camera 9. The robotic arm main body is composed of a robotic arm mounting seat 10, a plurality of rotating shafts, and a plurality of swinging shafts.

[0049] Through the cooperation of the plurality of rotating shafts and the plurality of swinging shafts, the material transfer process of the robotic arm main body can be made more flexible and not easily affected by obstacles.

[0050] The number of rotating axes is three, namely the first rotating axis 11, the second rotating axis 14 and the third rotating axis 16. The number of swinging axes is also three, namely the first swinging axis 12, the second swinging axis 13 and the third swinging axis 15.

[0051] The first rotating axis 11 is fixedly arranged on the robotic arm mounting base 10. The moving end of the first rotating axis 11 is connected to the first swinging axis 12. The moving end of the first swinging axis 12 is connected to the second swinging axis 13. The moving end of the second swinging axis 13 is connected to the second rotating axis 14. The moving end of the third swinging axis 15 is connected to the second rotating axis 14. The moving end of the third rotating axis 16 is connected to the third swinging axis 15.

[0052] The material taking module includes a material taking mounting frame 17 and a plurality of material taking suction cup assemblies. The material taking suction cup assemblies are fixedly arranged on the material taking mounting frame 17. The material taking suction cup assembly includes a material taking suction cup lifting cylinder 18, a suction cup mounting plate 19 and a plurality of vacuum suction cups 20. The number of vacuum suction cups 20 is six, three are arranged at the left end of the suction cup mounting plate 19, and the other three are arranged at the right end of the suction cup mounting plate 19. One material taking suction cup assembly sucks two materials.

[0053] The number of material taking suction cup assemblies is three. Two material taking suction cup assemblies are used for taking and placing materials, and the other is responsible for taking away the tested materials while discharging materials.

[0054] An equipment protection housing 21 is arranged on the testing machine workbench 1. The testing machine controller includes a mounting arm 22, a display screen 23 and a control button assembly 24. The display screen 23 and the control button assembly 24 are fixedly arranged on the mounting arm 22, and the mounting arm 22 is fixedly arranged on the equipment protection housing 21.

[0055] The working process of this multi-station PCB board testing machine provided in this embodiment is as follows: The embodiment of the present utility model provides advantages of high testing continuity and high testing efficiency compared with the existing testing machines.

[0056] The testing machine is used in cooperation with a loading machine. The loading machine transports materials to the loading area 101.

[0057] The testing vision camera 9 takes pictures of the materials in the loading area 101. The multi-degree-of-freedom material transfer robotic arm 2 transfers the materials in the loading area 101. Among them, two material taking suction cup assemblies are filled with materials and suck four PCB boards to be detected, and the remaining one material taking suction cup assembly does not suck materials.

[0058] The materials are transferred to the loading place of the tested test unit. Before loading, the empty material taking suction cup assembly first takes out the tested PCB boards, and then puts the PCB boards to be detected into the testing station 7.

[0059] In this cycle, the material replacement for the test monomers of different projects is also carried out in the same way. After all the tests on this PCB board are completed, the finished products and defective products are respectively placed on the finished product conveying pulley or the defective product conveying pulley for discharging.

[0060] As can be seen from the above, the beneficial effects of the present utility model are as follows: By adopting its mechanism, it can effectively solve the problem of low test efficiency existing in the PCB board testing machine in the prior art. By using the product structure, multiple test monomers are arranged adjacent to the periphery of the testing machine workbench, and the materials to be tested are placed one by one on the idle testing machines through the multi-degree-of-freedom transfer manipulator for testing, avoiding the traditional use of a multi-project integrated testing machine for testing, improving the test efficiency, ensuring the automation level of the equipment, while improving the economic benefits of the test and the use experience of the operators, which is beneficial to improving the competitiveness of the enterprise.

[0061] The above-described specific implementation manner is the preferred implementation manner of the present utility model, and does not limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to this specific implementation manner. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A multi-station PCB board testing machine, characterized by: The test machine workbench comprises a finished product transport module, a defective product transport module, a multi-degree-of-freedom material transfer robot, a test machine controller and a test unit. The number of the test units is at least two, and a plurality of test units are adjacently arranged around the test machine workbench. A loading area and a unloading area are arranged on the test machine workbench. The finished product transport module and the defective product transport module are arranged in the unloading area. The multi-degree-of-freedom material transfer robot can transfer the material in the loading area to different test units for testing.

2. The multi-station PCB board testing machine according to claim 1, characterized in that: The loading area and the unloading area are respectively arranged at two ends of the testing machine workbench, the multi-degree-of-freedom material transfer robot is arranged between the loading area and the unloading area, both sides of the multi-degree-of-freedom material transfer robot are testing areas, and multiple testing units are arranged in the testing areas.

3. The multi-station PCB board testing machine according to claim 2, characterized in that: The finished product transport module includes a first finished product transport component and a second finished product transport component, the first finished product transport component and the second finished product transport component are arranged in parallel, and the defective product transport module is a defective product transport component, and the defective product transport component is arranged between the first finished product transport component and the second finished product transport component.

4. The multi-station PCB board testing machine according to claim 3, characterized in that: The first finished product transport assembly and the second finished product transport assembly both include a finished product transport mounting frame and a finished product transport pulley, and the defective product transport assembly includes a finished product transport mounting frame, a defective product transport pulley and a material receiving controller, and the material receiving controller is arranged at one end of the defective product transport pulley away from the multi-degree-of-freedom material transfer robot arm.

5. The multi-station PCB board testing machine according to claim 1, characterized in that: The test unit includes a test unit controller and a test station. The number of the test stations is at least two, and a test carrier is arranged on the test station.

6. The multi-station PCB board testing machine according to claim 1, characterized in that: It also includes a test unit locking assembly, which includes a connecting plate, a drive mounting frame and a drive clamping piece. The connecting plate is fixedly connected to the test unit, the drive mounting frame is fixedly arranged on the test machine workbench, the drive mounting frame is provided with a drive mounting position that cooperates with the drive clamping piece, and the connecting plate is provided with a connecting block. The drive clamping piece includes a drive cylinder and a clamping block. The clamping block is fixedly arranged on the drive cylinder. The drive cylinder can drive the clamping block to move linearly, and the connecting block is provided with a clamping hole that cooperates with the clamping block.

7. The multi-station PCB board testing machine according to claim 6, characterized in that: There are two connecting blocks and two clamping blocks. Two groups of connecting blocks are respectively arranged at both ends of the connecting plate. Two clamping blocks are respectively arranged at the rear end of the driving cylinder and the moving end of the driving cylinder. Displacement limit grooves are arranged on the two clamping blocks. Limit rods cooperating with the displacement limit grooves of the two clamping blocks are respectively arranged on the driving mounting frame. The limit rods are arranged in the displacement limit grooves. The driving cylinder can cooperate with the limit rod to control the two clamping blocks to be clamped into or away from the corresponding clamping holes.

8. The multi-station PCB board testing machine according to any one of claims 1 to 7, characterized in that: The multi-degree-of-freedom material transfer robot arm comprises a robot arm body, a material picking module and a test visual camera. The robot arm body consists of a robot arm mounting base, multiple rotating axes and multiple swinging axes.

9. The multi-station PCB board testing machine according to claim 8, characterized in that: The material picking module comprises a material picking mounting frame and a plurality of material picking suction cup assemblies, wherein the material picking suction cup assemblies are fixedly arranged on the material picking mounting frame, and the material picking suction cup assemblies comprise a material picking suction cup lifting cylinder, a suction cup mounting plate and a plurality of vacuum suction cups.

10. The multi-station PCB board testing machine according to any one of claims 1 to 7, characterized in that: An equipment protection shell is arranged on the working table of the testing machine. The testing machine controller comprises a mounting arm, a display screen and a control button assembly. The display screen and the control button assembly are fixedly arranged on the mounting arm, and the mounting arm is fixedly arranged on the equipment protection shell.

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