Automatic PCB testing machine

Abstract

The utility model provides an automatic PCB testing machine, comprising a PCB testing feeding machine, a first material conveying assembly, at least two PCB testing machines, a second material conveying assembly and a PCB testing blanking machine which are arranged in sequence from front to back, the number of the PCB testing machines is at least two, a testing material conveying assembly is arranged between the plurality of PCB testing machines, the PCB testing machines comprise a testing machine workbench, and the testing machine workbench is provided with a plurality of material conveying assemblies. A multi-degree-of-freedom material transferring mechanical arm, a testing machine controller and at least two testing single bodies are arranged on the testing machine workbench, and the multiple testing single bodies are adjacently arranged around the testing machine workbench. According to the utility model, the problem of low testing efficiency of the PCB testing machine in the prior art can be solved, materials among the devices can be efficiently transported through the cooperation of the product structure, the first material transporting assembly, the testing material transporting assembly and the second material transporting assembly, the testing efficiency of the automatic PCB testing machine is improved, and the testing efficiency of the automatic PCB testing machine is improved. And the use experience of operators is improved, and the competitiveness of enterprises is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, and particularly relates to an automatic 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 feeds materials in cooperation with the loading machine and sequentially tests the PCB boards to be detected. There are many types of tests for PCB boards, and each type of test is further divided into multiple test items. In the existing testing process, different types of tests are usually independent testing devices. After the previous test workstation finishes the test, it is necessary to manually transfer the materials to the next test workstation, which results in poor continuity of the test, affects the overall test efficiency of PCB testing, cannot meet the needs of enterprises to improve economic benefits, and is not conducive to enhancing the competitiveness of enterprises. Content of the Utility Model

[0004] To solve the problems in the prior art, the utility model provides an automatic PCB board testing machine, which solves the problem of low testing efficiency existing in the prior art PCB board testing machine.

[0005] The automatic PCB board testing machine of the utility model includes a PCB testing loading machine, a first material transporting component, a PCB board testing machine, a second material transporting component, and a PCB testing unloading machine, which are arranged in sequence from front to back. The number of PCB board testing machines is at least two. A testing material transporting component is arranged between multiple PCB board testing machines. The PCB board testing machine includes a testing machine workbench, on which a multi-degree-of-freedom material transferring robotic arm, a testing machine controller, and at least two testing units are arranged. Multiple testing units are arranged adjacent to each other around the testing machine workbench.

[0006] The utility model is further improved. The first material transporting component includes a first material transporting carrier and a first material transporting conveyor belt. A product placement groove is arranged on the first material transporting carrier. The first material transporting conveyor belt can drive the first material transporting carrier to move linearly. The number of the first material transporting components is two, and the two material transporting components are arranged in parallel.

[0007] The present utility model is further improved. The number of PCB board testing machines is five, namely the first PCB board testing machine, the second PCB board testing machine, the third PCB board testing machine, the fourth PCB board testing machine, and the fifth PCB board testing machine. The number of testing material transporting components is the first testing material transporting component, the second testing material transporting component, the third testing material transporting component, the fourth testing material transporting component, and the fifth testing material transporting component. The two ends of the first testing material transporting component are respectively connected to the first PCB board testing machine and the second PCB board testing machine. The two ends of the second testing material transporting component are respectively connected to the first PCB board testing machine and the third PCB board testing machine. The two ends of the third testing material transporting component are respectively connected to the second PCB board testing machine and the fourth PCB board testing machine. The two ends of the fourth testing material transporting component are respectively connected to the third PCB board testing machine and the fifth testing material transporting component. The two ends of the fifth testing material transporting component are respectively connected to the fourth PCB board testing machine and the second material transporting component.

[0008] The present utility model is further improved. The number of the second material transporting components is two. The two second material transporting components are arranged in parallel, and one end of each of the two second material transporting components is installed on the fifth PCB board testing machine.

[0009] The present utility model is further improved. The two ends of the testing machine workbench are provided with a loading area and an unloading area. A multi-degree-of-freedom material transferring robotic arm is arranged between the loading area and the unloading area. The two sides of the multi-degree-of-freedom material transferring robotic arm are testing areas, and multiple testing units are arranged in the testing areas.

[0010] The present utility model is further improved. The PCB board testing machine further includes a defective product material transporting module. The defective product material transporting module is a defective product material transporting component, which includes a finished product material transporting mounting frame, a defective product material transporting pulley, and a material receiving controller. The material receiving controller is arranged at one end of the defective product material transporting pulley far away from the multi-degree-of-freedom material transferring robotic arm.

[0011] The present utility model is further improved. Both the PCB testing loading machine and the PCB testing unloading machine include a loading and unloading workbench, on which a tray loading and unloading mechanism, a multi-joint robotic arm, and a lower vision camera are arranged. The multi-joint robotic arm includes a rotating arm rotating seat, a material picking module, an upper vision camera, and a multi-joint rotating arm. The multi-joint rotating arm is composed of multiple rotating driving arms, and the multiple rotating driving arms are connected in sequence. The rear end of the multi-joint rotating arm is fixedly arranged on the rotating arm rotating seat, and a lifting mechanism is further arranged at the front end of the multi-joint rotating arm. The material picking module and the upper vision camera are fixedly arranged on the moving end of the lifting mechanism.

[0012] The present utility model is further improved. The PCB testing loading machine further includes a defective product unloading module, which includes a unloading mounting frame and a unloading pulley assembly installed on the unloading mounting frame.

[0013] The present utility model is further improved. The tray loading and unloading mechanism includes a loading and transporting platform, an unloading and transporting platform, and a tray transfer component. The loading and transporting platform includes a linear motion module for loading and a lifting component for loading. The linear motion module for loading includes a discharging end and a feeding end, and the lifting component for loading is arranged at the feeding end. The unloading and transporting platform includes a material receiving end and a discharging end, and the tray transfer component is arranged above the loading and transporting platform and the unloading and transporting platform. The tray transfer component can transfer the tray on the lifting component for loading to the unloading and transporting platform.

[0014] The present utility model is further improved. The PCB testing and unloading machine further includes a material spot-checking and storing component, which includes a storing mounting rack and a storing tray arranged in the storing mounting rack. A full-material inductor is arranged on the storing mounting rack.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides an automated PCB board testing machine. With this structure, it can effectively solve the problem of low testing efficiency in the existing PCB board testing machine. By using this product structure, the cooperation of the first transporting component, the testing transporting component, and the second transporting component can efficiently transport the materials between various devices, improve the testing efficiency of the automated PCB board testing machine, ensure the automation level of the device, and improve the operating experience of the operator, which is beneficial to enhancing the competitiveness of the enterprise. 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 drawings in the following description 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 automated PCB board testing machine;

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

[0019] Figure 3 It is Figure 2 A schematic diagram of another perspective structure;

[0020] Figure 4 It is a schematic diagram of the structure of the multi-joint manipulator;

[0021] Figure 5 It is a schematic diagram of the PCB board testing machine;

[0022] Figure 6 It is a schematic diagram of the internal structure of the PCB board testing machine;

[0023] Figure 7 Schematic diagram of the multi - degree - of - freedom material transfer robotic arm structure;

[0024] Figure 8 Schematic diagram of the test unit structure;

[0025] Figure 9 Schematic diagram of the PCB test blanking machine structure. Specific implementation manners

[0026] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs; the terms used in the description of the present utility model in the specification 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 specification and claims of the present utility model and the above - mentioned drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present utility model or the above - mentioned drawings are used to distinguish different objects, rather than to describe a specific order.

[0027] Referring to "embodiments" in the present utility model means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present utility model. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an exclusive, independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments.

[0028] In order to enable those skilled in the technical field 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 drawings.

[0029] As Figures 1-9 shown, an automated PCB board testing machine of the present utility model includes a PCB test loading machine 1, a first material transfer assembly 2, a PCB board testing machine, a second material transfer assembly 3, and a PCB test blanking machine 4 arranged in sequence from front to back. The number of PCB board testing machines is at least two, and a test material transfer assembly is arranged between multiple PCB board testing machines. The PCB board testing machine includes a testing machine workbench, on which a multi - degree - of - freedom material transfer robotic arm 51, a testing machine controller 52, and test units 22 are arranged. The number of test units 22 is at least two, and multiple test units 22 are arranged adjacent to each other around the testing machine workbench.

[0030] Through the settings of the first material transporting component 2, the second material transporting component 3 and the test material transporting component, the PCB test loading machine 1 places the materials in the first material transporting component 2, and cooperates with the multi-degree-of-freedom material transferring robotic arm 51 to move the materials to the corresponding test unit 22 for testing. After the testing is completed, it cooperates with the second material transporting component 3 and the test material transporting component to transfer the tested products, which can effectively improve the continuity of testing, reduce the labor cost, and improve the testing efficiency.

[0031] Feeding areas and discharging areas are arranged at both ends of the test machine workbench. The multi-degree-of-freedom material transferring robotic arm 51 is arranged between the feeding area and the discharging area. The two sides of the multi-degree-of-freedom material transferring robotic arm 51 are test areas, and multiple test units 22 are arranged in the test areas.

[0032] Through this setting, it can be realized that there is no interference between the feeding area, the test area and the discharging area.

[0033] Through the setting of the multi-degree-of-freedom material transferring robotic arm 51, the materials in the feeding area can be effectively transferred to different test units 22 for testing, effectively reducing the waiting time for testing, and each test unit 22 conducts tests simultaneously.

[0034] Obviously, the test items among multiple test units 22 can be the same or different. After the test items are completed, the PCB board that has completed the test of this item is moved to another test unit 22 for testing through the multi-degree-of-freedom material transferring robotic arm 51, which can be determined according to the test requirements of the customer. Multiple test units 22 conduct tests together, which can effectively avoid using a multi-item integrated test machine to conduct tests one by one, and improve the testing efficiency.

[0035] The test unit 22 includes a test unit controller 221 and test stations 222. The number of test stations 222 is at least two, and test carriers are arranged on the test stations 222.

[0036] Through the setting of multiple test stations, it can cooperate with the multi-degree-of-freedom material transferring robotic arm 51 for loading materials.

[0037] The multi-degree-of-freedom material transferring robotic arm 51 includes a robotic arm main body 511, a test material picking module 512 and a test vision camera 513. The robotic arm main body 511 is composed of a robotic arm mounting seat, multiple rotating shafts and multiple swinging shafts.

[0038] The first material transporting component 2 includes a first material transporting carrier 201 and a first material transporting conveyor belt 202. Product placement grooves are arranged on the first material transporting carrier 201. The first material transporting conveyor belt 202 can drive the first material transporting carrier 201 to move in a straight line. The number of the first material transporting components 2 is two, and the two material transporting components are arranged in parallel.

[0039] With the arrangement of two first material transporting components 2, alternate feeding can be carried out, avoiding the mutual waiting between the moving feeding process of a single first material transporting component 2 and the process of placing the material to be tested into the first material transporting carrier 201, resulting in discontinuous feeding and effectively improving the material transporting efficiency.

[0040] There are five PCB board testing machines, namely the first PCB board testing machine 5, the second PCB board testing machine 6, the third PCB board testing machine 7, the fourth PCB board testing machine 8, and the fifth PCB board testing machine 9. The number of testing material transporting components is the first testing material transporting component 10, the second testing material transporting component 11, the third testing material transporting component 12, the fourth testing material transporting component 13, and the fifth testing material transporting component 14. The two ends of the first testing material transporting component 10 are respectively connected to the first PCB board testing machine 5 and the second PCB board testing machine 6. The two ends of the second testing material transporting component 11 are respectively connected to the first PCB board testing machine 5 and the third PCB board testing machine 7. The two ends of the third testing material transporting component 12 are respectively connected to the second PCB board testing machine 6 and the fourth PCB board testing machine 8. The two ends of the fourth testing material transporting component 13 are respectively connected to the third PCB board testing machine 7 and the fifth testing material transporting component 14. The two ends of the fifth testing material transporting component 14 are respectively connected to the fourth PCB board testing machine 8 and the second material transporting component 3.

[0041] With the arrangement of five PCB board testing machines, it can effectively cover the testing of various types of PCB boards, avoiding the problem of long waiting time due to a single device testing multiple types, resulting in testing congestion.

[0042] Among the five PCB board testing machines, there are three types of tests. The first PCB board testing machine 5 is used for MBT testing. Both the second PCB board testing machine 6 and the third PCB board testing machine 7 are used for CAL testing. Both the fourth PCB board testing machine 8 and the fifth PCB board testing machine 9 are used for RF testing.

[0043] With the interval material transporting method of the first testing material transporting component 10, the second testing material transporting component 11, the third testing material transporting component 12, the fourth testing material transporting component 13, and the fifth testing material transporting component 14, due to the long testing duration of CAL testing and RF testing, the interval material transporting method can enable two devices of the same type to carry out feeding work respectively and conduct testing simultaneously, making reasonable use of the testing time and effectively improving the testing efficiency.

[0044] The number of the second material transporting components 3 is two. The two second material transporting components 3 are arranged in parallel, and one end of each of the two second material transporting components 3 is installed on the fifth PCB board testing machine 9.

[0045] With the arrangement of two second material transporting components 3, it can effectively cooperate with the fourth testing material transporting component 13 and the fifth testing material transporting component 14 for discharging.

[0046] The PCB board testing machine further includes a defective product conveying module 15. The defective product conveying module 15 is a defective product conveying component, which includes a finished product conveying mounting frame, a defective product conveying pulley, and a receiving controller 151. The receiving controller 151 is arranged at one end of the defective product conveying pulley away from the multi-degree-of-freedom transfer manipulator 51.

[0047] Through the setting of the defective product conveying module 15, the defective products of each type of test can be automatically and efficiently processed.

[0048] Both the PCB testing loading machine 1 and the PCB testing unloading machine 4 include a loading and unloading workbench, on which a tray loading and unloading mechanism, a multi-joint manipulator 21, and a lower vision camera 20 are arranged. The multi-joint manipulator 21 includes a rotating arm rotating seat 211, a material taking module 213, an upper vision camera 212, and a multi-joint rotating arm 214. The multi-joint rotating arm 214 is composed of multiple rotating driving arms, and the multiple rotating driving arms are connected in sequence. The rear end of the multi-joint rotating arm 214 is fixedly arranged on the rotating arm rotating seat 211, and a lifting mechanism is further arranged at the front end of the multi-joint rotating arm 214. The material taking module 213 and the upper vision camera 212 are fixedly arranged on the moving end of the lifting mechanism.

[0049] Through the setting of the upper vision camera 212, the multi-joint rotating arm 214 can grasp materials more accurately. Through the setting of the lower vision camera 20, the lower end face of the PCB board can be photographed and identified to determine whether there are defective products. When defective products are detected, they are placed on the defective product unloading module for unloading.

[0050] The PCB testing loading machine 1 further includes a defective product unloading module, which includes a unloading mounting frame and a unloading pulley assembly arranged on the unloading mounting frame.

[0051] Through the setting of the defective product module, the detected defective products can be automatically unloaded, improving the unloading efficiency.

[0052] The tray loading and unloading mechanism includes a loading conveying platform 16, a unloading conveying platform 17, and a tray transfer component 18. The loading conveying platform 16 includes a loading linear motion module and a loading lifting component. The loading linear motion module includes a discharging end and a feeding end, and the loading lifting component is arranged at the feeding end. The unloading conveying platform 17 includes a material receiving end and a unloading end, and the tray transfer component 18 is arranged above the loading conveying platform 16 and the unloading conveying platform 17. The tray transfer component 18 can transfer the tray on the loading lifting component to the unloading conveying platform 17.

[0053] Through the setting of the tray loading and unloading mechanism, the materials can be loaded and unloaded orderly, and the tray can be automatically transferred through the tray transfer component 18, improving the automation level of the equipment.

[0054] The PCB testing and blanking machine 4 further includes a material spot-check storage component 19. The material spot-check storage component 19 includes a storage mounting frame and a storage tray arranged in the storage mounting frame. A full-material inductor and a full-material alarm are arranged on the storage mounting frame.

[0055] Through the material spot-check storage component 19, it is convenient to collect the spot-checked materials. After the PCB testing and blanking machine 4 discharges a specified quantity of materials, the multi-joint manipulator 21 is controlled to take the next material as the spot-check object and place it in the storage tray. When the full-material inductor senses that the storage tray is full, the full-material alarm reminds the user to re-enter this material from the PCB feeding machine 1 into this automated PCB board testing machine for re-detection.

[0056] The working process of this automated PCB board testing machine provided in this embodiment is as follows: The embodiment of the present utility model provides an advantage of high testing continuity and high testing efficiency compared with the existing testing machines.

[0057] For the feeding process:

[0058] First, manually place the materials on the trays. The trays are stacked up and down on the feeding and transporting platform 16.

[0059] The feeding and transporting platform 16 feeds the materials and transports them to the feeding end. The upper vision camera 212 on the multi-joint manipulator 21 takes pictures to record the relative positions of the PCBs to be detected in the trays.

[0060] After the shooting is completed, the material is picked up. When the material picking module 213 is full of materials, it moves above the lower vision camera 20. The lower vision camera 20 cooperates with the lower end surface of the PCB to be detected to check whether there are defective products. When defective products are detected, it moves to the defective product blanking module for defective product blanking.

[0061] When the detected products are normal products, they move above the first transporting carrier 201, and the materials are placed one by one in different product placement slots. The first transporting conveyor belt 202 transports the materials to the feeding area of the first PCB board testing machine 5.

[0062] When the materials in the trays are taken out, the tray transfer component 18 transfers the empty trays to the blanking and transporting platform 17 for the blanking process of the empty trays.

[0063] After the empty trays are taken away, the feeding lifting component rises a specified distance to prepare for the material picking of the multi-joint manipulator 21.

[0064] For the testing process:

[0065] The multi-degree-of-freedom transfer robotic arm 51 of the first PCB board testing machine 5 picks up the materials in the feeding area, and the picked-up materials are placed one by one in the testing units 22 for detection.

[0066] After the first PCB board testing machine 5 finishes the test, the defective materials detected in the test are placed on the defective material conveying module 15 for discharging defective materials.

[0067] For the products that pass the inspection, they are evenly distributed onto the first test material conveying component 10 and the second test material conveying component 11 for material conveyance.

[0068] Or the materials are distributed according to the inspection completion status of the second PCB board testing machine 6 and the third PCB board testing machine 7.

[0069] After the second PCB board testing machine 6 finishes the test, the defective materials detected in the test are placed on the defective material conveying module 15 for discharging defective materials.

[0070] For the products that pass the inspection, they are placed on the third test material conveying component 12 for material conveyance.

[0071] The fourth PCB board testing machine 8 tests the materials transported by the third test material conveying component 12.

[0072] After the fourth PCB board testing machine 8 finishes the test, the defective materials detected in the test are placed on the defective material conveying module 15 for discharging defective materials.

[0073] For the products that pass the inspection, they are placed on the fifth test material conveying component 14 for material conveyance, and the fifth test material conveying component 14 cooperates with the second material conveying component 3 to discharge the products that have completed the inspection.

[0074] After the third PCB board testing machine 7 finishes the test, the defective materials detected in the test are placed on the defective material conveying module 15 for discharging defective materials.

[0075] For the products that pass the inspection, they are placed on the fourth test material conveying component 13 for material conveyance.

[0076] After receiving the materials from the fourth test material conveying component 13, the fifth PCB board testing machine 9 conducts a test.

[0077] After the test is completed, the multi-degree-of-freedom material transfer robotic arm 51 of the fifth PCB board testing machine 9 places the defective materials detected in the test on the defective material conveying module 15 for discharging defective materials.

[0078] The products that pass the inspection are placed on another second material conveying component 3 for discharging the products that have completed the inspection.

[0079] Regarding the material discharging process:

[0080] The loading and conveying platform 16 of the PCB testing and discharging machine 4 loads empty trays, the loading lifting component lifts the empty trays, and the multi-joint robotic arm 21 of the PCB testing and discharging machine 4 sucks the materials on the two second material conveying components 3 and places them into the empty trays one by one.

[0081] When the empty tray is full of materials, the tray transfer component 18 transfers the tray to the discharging and conveying platform 17 for automatic discharging.

[0082] After the full tray is transferred, the loading lifting component of the loading and conveying platform 16 controls the empty tray to rise to a specified height to prepare for discharging by the multi-joint manipulator 21 of the PCB testing and discharging machine 4.

[0083] The test process is completed in sequence and cyclically.

[0084] As can be seen from the above, the beneficial effects of the present utility model are as follows: By adopting its mechanism, the problem of low testing efficiency existing in the PCB board testing machine in the prior art can be effectively solved. Through the use of the product structure and the cooperation of the first conveying component 2, the testing conveying component, and the second conveying component 3, the materials between various devices can be efficiently transported, improving the testing efficiency of the automated PCB board testing machine. While ensuring the automation level of the device, the user experience of the operator is improved, which is beneficial to enhancing the competitiveness of the enterprise.

[0085] The above-described specific implementation manners are the preferred implementation manners of the present utility model, and do 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. An automated PCB board testing machine, characterized in that: The invention comprises a PCB test loader, a first material transport component, a PCB board tester, a second material transport component and a PCB test unloader which are arranged in sequence from front to back. The number of the PCB board testers is at least two, and a test material transport component is arranged between the multiple PCB board testers. The PCB board tester comprises a tester workbench, and a multi-degree-of-freedom material transfer mechanical arm, a tester controller and a test unit are arranged on the tester workbench. The number of the test units is at least two, and the multiple test units are adjacently arranged around the tester workbench.

2. The automatic PCB board testing machine according to claim 1, characterized in that: The first material transport component includes a first material transport carrier and a first material transport conveyor belt. The first material transport carrier is provided with a product placement slot. The first material transport conveyor belt can drive the first material transport carrier to move linearly. The number of the first material transport components is two, and the two material transport components are arranged in parallel.

3. The automatic PCB board testing machine according to claim 1, characterized in that: The number of the PCB board testers is five, and the five PCB board testers are respectively a first PCB board tester, a second PCB board tester, a third PCB board tester, a fourth PCB board tester and a fifth PCB board tester. The number of the test conveying components is a first test conveying component, a second test conveying component, a third test conveying component, a fourth test conveying component and a fifth test conveying component. Both ends of the first test conveying component are respectively connected to the first PCB board tester and the second PCB board tester, both ends of the second test conveying component are respectively connected to the first PCB board tester and the third PCB board tester, both ends of the third test conveying component are respectively connected to the second PCB board tester and the fourth PCB board tester, both ends of the fourth test conveying component are respectively connected to the third PCB board tester and the fifth test conveying component, and both ends of the fifth test conveying component are respectively connected to the fourth PCB board tester and the second conveying component.

4. The automatic PCB board testing machine according to claim 3, characterized in that: The number of the second material transport components is two, the two second material transport components are arranged in parallel, and one end of the two second material transport components is installed on the fifth PCB board testing machine.

5. The automatic PCB board testing machine according to claim 1, characterized in that: A loading area and a unloading area are arranged at both 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 test areas, and multiple test units are arranged in the test areas.

6. The automatic PCB board testing machine according to claim 1, characterized in that: The PCB board testing machine also includes a defective material transport module, which is a defective material transport component. The defective material transport component includes a finished product transport mounting frame, a defective material transport pulley and a material receiving controller. The material receiving controller is arranged at one end of the defective material transport pulley away from the multi-degree-of-freedom material transfer robot arm.

7. The automatic PCB board testing machine according to any one of claims 1 to 6, characterized in that: The PCB test loading machine and the PCB test unloading machine both include loading and unloading workbenches, on which are disposed a tray loading and unloading mechanism, a multi-joint manipulator, and a lower visual camera, the multi-joint manipulator including a rotating arm base, a material picking module, an upper visual camera, and a multi-joint rotating arm, the multi-joint rotating arm consisting of a plurality of rotating driving arms, which are sequentially connected, the rear end of the multi-joint rotating arm being fixedly disposed on the rotating arm base, the front end of the multi-joint rotating arm being further disposed with a lifting mechanism, the material picking module and the upper visual camera being fixedly disposed on the moving end of the lifting mechanism.

8. The automatic PCB board testing machine according to claim 7, characterized in that: The PCB test feeder also includes a defective product unloading module, and the defective product unloading module includes an unloading mounting frame and an unloading pulley assembly installed on the unloading mounting frame.

9. The automatic PCB board testing machine according to claim 7, characterized in that: The pallet loading and unloading mechanism includes a loading and transporting platform, a unloading and transporting platform and a pallet transferring assembly. The loading and transporting platform includes a loading linear motion module and a loading lifting assembly. The loading linear motion module includes a discharge end and a feeding end. The loading lifting assembly is arranged at the feeding end. The unloading and transporting platform includes a receiving end and a unloading end. The pallet transferring assembly is arranged above the loading and transporting platform and the unloading and transporting platform. The pallet transferring assembly can transfer the pallet on the loading and transporting assembly to the unloading and transporting platform.

10. The automatic PCB board testing machine according to claim 7, characterized in that: The PCB test blanking machine also includes a material random inspection storage component, which includes a material storage mounting frame and a storage tray arranged in the material storage mounting frame, and a full material sensor is arranged on the material storage mounting frame.

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