Full-automatic pick-and-place equipment for PCB (Printed Circuit Board) test

Abstract

The invention relates to full-automatic taking and placing equipment for PCB testing. The full-automatic taking and placing equipment comprises a workbench, a feeding assembly, a testing assembly, a mechanical arm and a discharging assembly. The feeding assembly is arranged at one end of the workbench, the discharging assembly is arranged at the other end of the workbench, the feeding assembly, the workbench and the discharging assembly are located on the same central axis, and the mechanical arm is located on the workbench and located on the central axis. The number of the testing assemblies is at least four, every two of the four testing assemblies are arranged on the two sides of the central axis, and the testing assemblies abut against the workbench. The mechanical arm is adopted to replace manual work to feed and discharge the four groups of test assemblies, so that the feeding and discharging efficiency is improved, and the error rate is reduced. Four groups of test assemblies are arranged in the same equipment for testing simultaneously, so that the test efficiency of the full-automatic pick-and-place equipment for testing the PCB can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board pick-and-place equipment, and in particular to a fully automatic pick-and-place equipment for PCB board testing. Background Art

[0002] When testing existing PCB products, manual loading and unloading of materials is usually required, which is time-consuming and labor-intensive, resulting in low loading and unloading efficiency. In addition, the manual loading and unloading method may also result in the placement of unqualified products in the qualified area, resulting in a high error rate.

[0003] When manual material placement is used, due to the positional relationship between the test instruments and the production line equipment, as well as the low efficiency of manual material placement, one worker is usually only responsible for placing materials for one to two test instruments, resulting in low testing efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a fully automatic pick-and-place device for PCB board testing.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a fully automatic pick-and-place device for PCB board testing, comprising: a workbench, a loading component, a test component, a robotic arm and a discharging component; the loading component is arranged at one end of the workbench, the discharging component is arranged at the other end of the workbench, the loading component, the workbench and the discharging component are located on the same central axis, the robotic arm is located on the workbench, and the robotic arm is located on the central axis; the test component has at least four groups, and the four groups of the test components are respectively arranged on both sides of the central axis in pairs, and the test components are abutted against the workbench.

[0006] In one embodiment, the robotic arm includes: a motion axis assembly, a positioning camera and a suction cup assembly; the positioning camera and the suction cup assembly are arranged on one end of the motion axis assembly, and the other end of the motion axis assembly is arranged on the workbench.

[0007] In one embodiment, the motion axis assembly includes: a base, a first short axis, a second short axis, a third short axis, a first long axis, a second long axis and a rotating block; the base is fixedly disposed on the workbench, the first short axis is rotatably disposed on the base, the first short axis is rotatably connected to one end of the first long axis, the other end of the first long axis is rotatably connected to one end of the second long axis, the other end of the second long axis is rotatably connected to the second short axis, the second short axis is rotatably connected to the third short axis, the rotating block is rotatably disposed on the third short axis, and the rotating block is used to connect to the positioning camera and the suction cup assembly.

[0008] In one embodiment, the suction cup assembly has at least eight suction nozzles, and the eight suction nozzles are arranged in two rows, with four nozzles in each row, and the suction nozzles in each row are arranged at equal distances.

[0009] In one embodiment, the test assembly includes: at least two testers, a constant current power supply and a control cabinet; the constant current power supply is arranged in the control cabinet, and the two testers are stacked on the control cabinet, and the constant current power supply is used to power the testers.

[0010] In one embodiment, each of the testers is externally covered with a shielding box, and each of the testers has at least two test parts, the test parts are used to place PCB boards to be tested, and the test drawer is slidably arranged in the shielding box.

[0011] In one embodiment, the loading assembly includes: a support table, a first belt assembly, a first support assembly, a second support assembly, a first lifting assembly, a second lifting assembly and a transport cylinder assembly; the support table is located on the central axis, the first end of the first belt assembly is located on the support table, the second end of the first belt assembly is located on the workbench, the first support assembly is arranged on the first end of the first belt assembly, the second support assembly is arranged on the second end of the first belt assembly, the first support assembly is arranged on the support table, and the first support assembly is arranged at a position close to the first end of the first belt assembly, the second support assembly is arranged on the workbench, and the second support assembly is arranged at a position close to the second end of the first belt assembly, the transport cylinder assembly is arranged on the second support assembly, and the transport cylinder is used to transport the tested PCB board to the discharge assembly.

[0012] In one embodiment, the loading assembly also includes: two sets of fixing frames, the two fixing frames are respectively arranged on the first end and the second end of the belt assembly, each of the fixing frames is composed of four fixing rods, the fixing frames are used to fix the blister box for placing the PCB board, and each of the fixing rods is used to abut against the four corners of the blister box.

[0013] In one embodiment, the discharge assembly includes: a placement table, a lifting assembly, a clamping assembly and a second belt assembly; the placement table has an upper layer and a lower layer, the upper layer of the placement table is higher than the lower layer of the placement table, the clamping assembly is arranged on the upper layer of the placement table, the clamping assembly is used to clamp the PCB board transported from the loading assembly, the lifting assembly is arranged on the lower layer of the placement table, the lifting assembly is used to transport the PCB board located on the upper layer of the placement table to the lower layer of the placement table, the second belt assembly is arranged on the lower layer of the placement table, the second belt assembly is used to transport the PCB board out of the fully automatic pick-and-place equipment for PCB board testing.

[0014] In one embodiment, a failure zone is provided on the workbench, and the failure zone is used to place products that fail the test.

[0015] The beneficial effects of the present invention are as follows: the present invention provides a fully automatic pick-and-place device for PCB board testing, by arranging the loading component, the workbench and the unloading component on the same central axis, and arranging a mechanical arm on the central axis, so that the mechanical arm can be used for loading and unloading, and thus at least four groups of test components can be arranged on both sides of the central axis. The method of using a mechanical arm to replace manual loading and unloading of four groups of test components improves the efficiency of loading and unloading, and reduces the error rate. Arranging four groups of test components in the same device for testing at the same time can improve the test efficiency of the fully automatic pick-and-place device for PCB board testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a fully automatic pick-and-place device for PCB board testing in one embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a feeding assembly in one direction according to an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of a feeding assembly in another direction in one embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of a blanking component in one direction in one embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of a test component in one direction in one embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of a robotic arm in one direction according to an embodiment of the present invention.

[0023] In the attached drawings, 10, fully automatic pick-and-place equipment for PCB board testing; 100, workbench; 110, unqualified area; 200, feeding assembly; 210, support table; 220, first belt assembly; 230, first support assembly; 231, first cylinder; 232, first cross plate; 240, second support assembly; 241, second cylinder; 242, second cross plate; 250, first lifting assembly; 251, first stepping motor; 252, first linear bearing; 253, first support plate; 260, second lifting assembly; 261, second stepping motor; 262, second linear bearing; 263, second support plate; 270, transport gas Cylinder assembly; 271, rodless cylinder; 272, sliding plate; 280, fixed frame; 281, fixed rod; 300, test assembly; 310, control cabinet; 320, shielding box; 330, test section; 400, robotic arm; 410, motion axis assembly; 411, base; 412, first short axis; 413, second short axis; 414, third short axis; 415, first long axis; 416, second long axis; 417, rotating block; 420, positioning camera; 430, suction cup assembly; 431, suction nozzle; 500, discharging assembly; 510, placement table; 520, lifting assembly; 530, clamping assembly; 540, second belt assembly. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] In one embodiment, Figure 1 , Figure 3 , Figure 2 , Figure 4 and Figure 5 As shown, a fully automatic pick-and-place device 10 for PCB board testing includes: a workbench 100, a loading component 200, a test component 300, a robot arm 400 and a discharge component 500; the loading component 200 is arranged at one end of the workbench 100, and the discharge component 500 is arranged at the other end of the workbench 100, the loading component 200, the workbench 100 and the discharge component 500 are located on the same central axis, the robot arm 400 is located on the workbench 100, and the robot arm 400 is located on the central axis; there are at least four groups of the test components 300, and the four groups of the test components 300 are respectively arranged on both sides of the central axis in pairs, and the test components 300 are abutted against the workbench 100.

[0028] Specifically, by arranging the loading assembly 200, the workbench 100 and the discharging assembly 500 on the same central axis, and arranging the mechanical arm 400 on the central axis, the mechanical arm 400 can be used for loading and unloading, so at least four groups of the test assemblies 300 can be arranged on both sides of the central axis. The method of using the mechanical arm 400 to replace manual loading and unloading of four groups of the test assemblies 300 improves the efficiency of loading and unloading and reduces the error rate. Arranging four groups of test assemblies 300 in the same device for testing at the same time can improve the test efficiency of the fully automatic pick-and-place device 10 for PCB board testing.

[0029] In one embodiment, Figure 6 As shown, the robot arm 400 includes: a motion axis assembly 410, a positioning camera 420 and a suction cup assembly 430; the positioning camera 420 and the suction cup assembly 430 are arranged on one end of the motion axis assembly 410, and the other end of the motion axis assembly 410 is arranged on the workbench 100. Specifically, the suction cup assembly 430 is used to suck the PCB board to load and unload the test assembly 300. The positioning camera 420 is arranged on the motion axis assembly 410 next to the suction cup, and the positioning camera 420 is used to take pictures when the suction cup sucks the PCB board, thereby providing accurate positioning and suction for the suction cup, and improving the suction accuracy of the suction cup.

[0030] In order to enable the robot arm 400 to move flexibly on the workbench 100, in one embodiment, Figure 6As shown, the motion axis assembly 410 includes: a base 411, a first short axis 412, a second short axis 413, a third short axis 414, a first long axis 415, a second long axis 416 and a rotating block 417; the base 411 is fixedly set on the workbench 100, the first short axis 412 is rotatably set on the base 411, the first short axis 412 is rotatably connected to one end of the first long axis 415, the other end of the first long axis 415 is rotatably connected to one end of the second long axis 416, the other end of the second long axis 416 is rotatably connected to the second short axis 413, the second short axis 413 is rotatably connected to the third short axis 414, the rotating block 417 is rotatably set on the third short axis 414, and the rotating block 417 is used to connect with the positioning camera 420 and the suction cup assembly 430. Specifically, the motion axis assembly 410 has six movable connection parts, including: the connection part between the first short axis 412 and the base 411; the connection part between the first short axis 412 and the first long axis 415; the connection part between the first long axis 415 and the second long axis 416; the connection part between the second long axis 416 and the second short axis 413, the connection part between the second short axis 413 and the third short axis 414, and the connection part between the third short axis 414 and the rotating block 417. Through the above configuration, it can be ensured that the robot arm 400 can move flexibly on the workbench 100, so that the robot arm wall can directly move on the loading assembly 200, the testing assembly 300 and the unloading assembly 500, and then absorb and transport the PCB board.

[0031] In order to complete the loading and unloading of materials on a tester at one time, in one embodiment, Figure 6 As shown, the suction cup assembly 430 has at least eight suction nozzles 431, and the eight suction nozzles 431 are arranged in two rows, four in each row, and the suction nozzles 431 in each row are arranged at equal intervals. Specifically, two suction nozzles 431 are required to suck one PCB board, so eight suction nozzles 431 are set on the suction cup, which can suck four PCB boards at the same time. The tester in the test assembly 300 has two test stations, so each tester tests at most two PCB boards at a time. During the working process, the mechanical arm 400 first sucks two PCB boards to be tested to the tester, then sucks out the tested PCB boards on the tester, and then puts the two PCB boards to be tested into the tester for testing. Through the above method, loading and unloading can be completed on a tester at one time, without the need for the mechanical arm 400 to suck and transport multiple times, thereby improving efficiency.

[0032] In one embodiment, Figure 1 and Figure 5As shown, the test assembly 300 includes: at least two testers (blocked in the figure, not shown), a constant current power supply (blocked in the figure, not shown) and a control cabinet 310; the constant current power supply is arranged in the control cabinet 310, and the two testers are stacked on the control cabinet 310, and the constant current power supply is used to power the testers. Specifically, by stacking the two testers on the control cabinet 310, space can be saved, so that the fully automatic pick-and-place device 10 for PCB board testing can test multiple PCB boards at one time during operation, thereby improving the test efficiency. At the same time, the constant current power supply is arranged in the control cabinet 310, and the constant current power supply can provide a stable current for the tester, thereby protecting the tester.

[0033] In order to reduce the interference of external links on the tester when testing the PCB board, in one embodiment, Figure 5 As shown, each of the testers is provided with a shielding box 320 on the outside, and each of the testers has at least two test parts 330, and the test parts 330 are used to place the PCB board to be tested, and the test drawer is slidably arranged in the shielding box 320. Specifically, the shielding box 320 is a shielding body made of conductive or magnetic materials, which can limit the electromagnetic signal within a certain space, thereby realizing the processing of conduction and radiation. This feature enables the shielding box 320 to provide a non-interference test environment for the wireless PCB board. In the PCB board test, the shielding box 320 can absorb internal interference signals and shield the interference of external electromagnetic signals to ensure the accuracy and reliability of the test results. The shielding box 320 can not only protect the test environment from the influence of external electromagnetic interference, but also protect the test equipment and test personnel from the harm of electromagnetic radiation. In the test process assisted by the high-frequency transmitter, the shielding box 320 can significantly reduce the intensity of electromagnetic radiation to ensure the safety of the test equipment and test personnel.

[0034] In one embodiment, Figure 2 and Figure 3As shown, the loading assembly 200 includes: a support platform 210, a first belt assembly 220, a first support assembly 230, a second support assembly 240, a first lifting assembly 250, a second lifting assembly 260 and a transport cylinder assembly 270; the support platform 210 is located on the central axis, the first end of the first belt assembly 220 is located on the support platform 210, the second end of the first belt assembly 220 is located on the workbench 100, the first support assembly 230 is arranged on the first end of the first belt assembly 220, and the second support assembly 240 is arranged on the second end of the first belt assembly 220. The first support assembly 230 is disposed on the second end of the first belt assembly 220, the first support assembly 230 is disposed on the support table 210, and the first support assembly 230 is disposed at a position close to the first end of the first belt assembly 220, the second support assembly 240 is disposed on the workbench 100, and the second support assembly 240 is disposed at a position close to the second end of the first belt assembly 220, the transport cylinder assembly 270 is disposed on the second support assembly 240, and the transport cylinder is used to transport the tested PCB board to the discharge assembly 500.

[0035] In one embodiment, the loading assembly 200 is divided into three areas: a stacking area, a test area, and an empty tray area. Specifically, the stacking area is used to stack the PCB boards on the blister boxes to be tested, the test area is used to place the blister boxes loaded with the PCB boards being loaded, and the empty tray area is used to place empty blister boxes.

[0036] In this embodiment, if Figure 2 and Figure 3As shown, the stacking area is located on the support platform 210, and the first lifting assembly 250 and the first supporting assembly 230 are located in the stacking area. The first lifting assembly 250 includes: a first stepper motor 251, four first linear bearings 252 and a first supporting plate 253. The first stepper motor 251 is arranged on the support platform 210, and the four first linear bearings 252 are respectively arranged on the support platform 210 around the first stepper motor 251. The first supporting plate 253 is arranged on the four first linear bearings 252 and the first stepper motor 251. The first stepper motor 251 is used to drive the first supporting plate 253 to rise and fall, and the first linear bearing 252 is used to stabilize the first supporting plate 253 to rise and fall linearly. The first supporting assembly 230 includes: two first cylinders 231, and the first horizontal plates 232 are respectively arranged on the two first cylinders 231. The two first cylinders 231 are respectively arranged on both sides of the first belt assembly 220, and the two first cylinders 231 are used to drive the two first transverse plates 232 to approach or move away from the blister boxes placed in the stacking area, thereby controlling the two first transverse plates 232 to support the blister boxes. The PCB boards to be tested are stacked in the stacking area, and the PCB boards are loaded in blister boxes. When the blister box is placed in the stacking area, the first transverse plate 232 will support the blister box; the first stepper motor 251 drives the first support plate 253 to support the bottom blister box, and then the two first cylinders 231 drive the two first transverse plates 232 away from the blister box, so that the first transverse plate 232 no longer supports the blister box; the first stepper motor 251 drives the first support plate 253 to descend, thereby driving the blister box to descend; then the two first cylinders 231 drive the two first transverse plates 232 close to the blister box, so that the two first transverse plates 232 support the second to last blister box at the bottom; finally, the first stepper motor 251 lowers the bottom blister box to the first belt assembly 220, and the first belt assembly 220 transports the blister box from the stacking area to the testing area, thereby completing the loading operation.

[0037] In this embodiment, the empty tray area is located at one end of the loading assembly 200 on the workbench 100, and the test area is located between the empty tray area and the stacking area. Specifically, the blister box containing the PCB board to be tested passes through the test area from the stacking area and finally reaches the empty tray area. In the test area, the PCB board on the blister box will be sucked by the mechanical arm 400 onto the test assembly 300 for testing, and finally the remaining empty blister box will be transported to the empty tray area by the first transport assembly.

[0038] In this embodiment, if Figure 2 and Figure 3As shown, the second support assembly 240, the second lifting assembly 260 and the transport cylinder assembly 270 are arranged on the empty plate area of ​​the loading assembly 200. Specifically, the second lifting assembly 260 includes: a second stepper motor 261, two second linear bearings 262 and a second support plate 263, the second stepper motor 261 is arranged on the workbench 100, the two second linear bearings 262 are respectively arranged on the workbench 100 near the two ends of the second stepper motor 261, and the second support plate 263 is arranged on the second stepper motor 261 and the two second linear bearings 262. The transport cylinder assembly 270 includes: a rodless cylinder 271 and a sliding plate 272 arranged on the rodless cylinder 271, and the rodless cylinder 271 is arranged on the second support plate 263. The second support assembly 240 includes: two second cylinders 241, and the two second cylinders 241 are respectively provided with second cross plates 242. The two second cylinders 241 are respectively arranged on both sides of the first belt assembly 220, and the two second cylinders 241 are used to drive the two second transverse plates 242 to approach or move away from the blister box placed in the empty plate area, thereby controlling the two second transverse plates 242 to support the blister box.

[0039] In the above embodiment, if Figure 2 and Figure 3 As shown, during the process of transporting the empty blister box from the test area to the empty panel area, the second stepper motor 261 drives the second support plate 263, and the transport cylinder assembly 270 on the second support plate 263 lifts up the blister box moved to the empty panel area, and then drives the two second cross plates 242 to approach the blister box through the two second cylinders 241, so that the two cross plates support the blister box in the empty panel area. When the blister box needs to be transported out of the empty tray area, the second support plate 263 is driven by the second stepper motor 261, and the transport cylinder assembly 270 on the second support plate 263 supports the blister box at the bottom; then the two second cylinders 241 drive the two second transverse plates 242 away from the blister box, so that the second transverse plates 242 no longer support the blister box; the second stepper motor 261 drives the second support plate 263 to descend, thereby driving the blister box to descend, and then the two second cylinders 241 drive the two second transverse plates 242 to approach the stacking area, and then the two second transverse plates 242 are used to support the second to last blister box at the bottom, and then the first stepper motor 251 is used to lower the bottom blister box to a certain height, so that the bottom blister box is away from the second to last blister box at the bottom, and finally the rodless cylinder 271 and the sliding plate 272 are driven to transport the blister box to the unloading assembly, thereby completing the empty tray transportation operation.

[0040] In one embodiment, the first belt assembly 220 is an adjustable variable-pitch belt assembly. Specifically, the first belt assembly 220 includes: two belt racks and two belts. The two belt racks are arranged in parallel, and one end of the two belt racks is arranged on the support platform 210, and the other end of the two belt racks is arranged on the workbench 100. The two belts are rotatably arranged on the two belt racks respectively. The length of the belt rack can be telescopically adjusted, and the belt can also be correspondingly wrapped around the belt rack for tension adjustment. Through the above arrangement, the loading assembly 200 can adapt to equipment of different lengths.

[0041] In order to stably stack the blister boxes on the loading assembly 200, in one embodiment, Figure 2 and Figure 3 As shown, the feeding assembly 200 also includes: two groups of fixed frames 280, the two fixed frames 280 are respectively arranged on the first end and the second end of the belt assembly, each of the fixed frames 280 is composed of four fixed rods 281, the fixed frames 280 are used to fix the blister box for placing the PCB board, and each of the fixed rods 281 is used to abut against the four corners of the blister box. Specifically, one group of fixed frames 280 is arranged in the stacking area of ​​the feeding assembly 200, and the other group of fixed frames 280 is arranged in the empty plate area of ​​the feeding assembly 200. And the size of the area surrounded by the four fixed rods 281 of the fixed frame 280 is adapted to the area size of the blister plate. Through the above arrangement, it can be ensured that the blister box is stably stacked on the feeding assembly 200.

[0042] In the above embodiment, photoelectric sensors are disposed on the first supporting plate 253 and the sliding plate 272 , and the photoelectric sensors are used to test whether the blister box leaves the first supporting plate 253 and the sliding plate 272 .

[0043] In one embodiment, Figure 4 As shown, the discharging component 500 includes: a placement table 510, a lifting component 520, a clamping component 530 and a second belt component 540; the placement table 510 has an upper layer and a lower layer, the upper layer of the placement table 510 is higher than the lower layer of the placement table 510, the clamping component 530 is arranged on the upper layer of the placement table 510, and the clamping component 530 is used to clamp the PCB board transported from the loading component 200, the lifting component 520 is arranged on the lower layer of the placement table 510, and the lifting component 520 is used to transport the PCB board located on the upper layer of the placement table 510 to the lower layer of the placement table 510, and the second belt component 540 is arranged on the lower layer of the placement table 510, and the second belt component 540 is used to transport the PCB board out of the fully automatic pick-and-place device 10 for PCB board testing.

[0044] In this embodiment, the placement table 510 is located on the side of the workbench 100 away from the support table 210. The clamping assembly 530 is used to clamp and fix the empty blister box transported from the loading area. At this time, the clamped and fixed blister box is used to place the PCB board that has passed the test. When the blister box is full of PCB boards, the lifting assembly 520 will lift and support the blister box full of PCB boards, and then descend to a certain height, so as not to affect the next empty blister box to be clamped and fixed by the clamping assembly 530. After repeating the above operation for many times, when a certain number of blister boxes are stacked on the lifting assembly 520, the lifting assembly 520 will descend to the position of the second belt assembly 540 to place all the blister boxes on the second belt assembly 540, and then the blister box full of tested PCB boards will be transported to the fully automatic pick-and-place device 10 for PCB board testing through the second belt assembly 540, thereby completing the unloading operation.

[0045] In order to distinguish qualified PCB boards from unqualified PCB boards, in one embodiment, Figure 1 As shown, a non-conforming area 110 is provided on the workbench 100, and the non-conforming area 110 is used to place the products that fail the test. Specifically, a blister box is placed in the non-conforming area 110 to hold the non-conforming PCB boards. When the tester tests the non-conforming PCB boards, the mechanical arm 400 will suck the non-conforming PCB boards into the non-conforming area 110, so as to avoid the mixing of the qualified PCB boards and the non-conforming PCB boards.

[0046] Compared with the prior art, the present invention has at least the following advantages: by arranging the loading assembly 200, the workbench 100 and the discharging assembly 500 on the same central axis, and arranging the mechanical arm 400 on the central axis, the mechanical arm 400 can be used for loading and unloading, so at least four groups of test assemblies 300 can be arranged on both sides of the central axis. The use of the mechanical arm 400 to replace manual loading and unloading of the four groups of test assemblies 300 improves the efficiency of loading and unloading and reduces the error rate. Arranging four groups of test assemblies 300 in the same device for simultaneous testing can improve the test efficiency of the fully automatic pick-and-place device 10 for PCB board testing.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of this application shall be based on the attached claims.

Claims

1. A fully automatic pick-and-place device for PCB board testing, characterized in that: include: Workbench, loading assembly, testing assembly, robotic arm and unloading assembly; The loading assembly is arranged at one end of the workbench, the discharging assembly is arranged at the other end of the workbench, the loading assembly, the workbench and the discharging assembly are located on the same central axis, the robotic arm is located on the workbench, and the robotic arm is located on the central axis; There are at least four groups of the test components, and the four groups of the test components are arranged in pairs on both sides of the central axis, and the test components are in contact with the workbench.

2. A fully automatic pick-and-place device for PCB board testing according to claim 1, characterized in that: The robotic arm comprises: a motion axis assembly, a positioning camera and a suction cup assembly; the positioning camera and the suction cup assembly are arranged on one end of the motion axis assembly, and the other end of the motion axis assembly is arranged on the workbench.

3. A fully automatic pick-and-place device for PCB board testing according to claim 2, characterized in that: The motion axis assembly includes: a base, a first short axis, a second short axis, a third short axis, a first long axis, a second long axis and a rotating block; the base is fixedly arranged on the workbench, the first short axis is rotatably arranged on the base, the first short axis is rotatably connected to one end of the first long axis, the other end of the first long axis is rotatably connected to one end of the second long axis, the other end of the second long axis is rotatably connected to the second short axis, the second short axis is rotatably connected to the third short axis, the rotating block is rotatably arranged on the third short axis, and the rotating block is used to connect to the positioning camera and the suction cup assembly.

4. The fully automatic pick-and-place device for PCB board testing according to claim 2, characterized in that: The suction cup assembly is provided with at least eight suction nozzles, and the eight suction nozzles are arranged in two rows, with four nozzles in each row, and the suction nozzles in each row are arranged at equal distances.

5. The fully automatic pick-and-place device for PCB board testing according to claim 1, characterized in that: The test assembly includes: at least two testers, a constant current power supply and a control cabinet; the constant current power supply is arranged in the control cabinet, and the two testers are stacked on the control cabinet, and the constant current power supply is used to supply power to the testers.

6. The fully automatic pick-and-place device for PCB board testing according to claim 5, characterized in that: Each of the testers is provided with a shielding box on the outside. Each of the testers has at least two test parts. The test parts are used to place PCB boards to be tested. The test drawer is slidably arranged in the shielding box.

7. The fully automatic pick-and-place device for PCB board testing according to claim 1, characterized in that: The loading assembly includes: a support table, a first belt assembly, a first support assembly, a second support assembly, a first lifting assembly, a second lifting assembly and a transport cylinder assembly; the support table is located on the central axis, the first end of the first belt assembly is located on the support table, the second end of the first belt assembly is located on the workbench, the first support assembly is arranged on the first end of the first belt assembly, the second support assembly is arranged on the second end of the first belt assembly, the first support assembly is arranged on the support table, and the first support assembly is arranged at a position close to the first end of the first belt assembly, the second support assembly is arranged on the workbench, and the second support assembly is arranged at a position close to the second end of the first belt assembly, the transport cylinder assembly is arranged on the second support assembly, and the transport cylinder is used to transport the tested PCB board to the discharge assembly.

8. The fully automatic pick-and-place device for PCB board testing according to claim 7, characterized in that: The feeding assembly also includes: two sets of fixing frames, the two fixing frames are respectively arranged on the first end and the second end of the belt assembly, each of the fixing frames is composed of four fixing rods, the fixing frames are used to fix the blister box for placing the PCB board, and each of the fixing rods is used to abut against the four corners of the blister box.

9. The fully automatic pick-and-place device for PCB board testing according to claim 1, characterized in that: The unloading assembly includes: a placement table, a lifting assembly, a clamping assembly and a second belt assembly; the placement table has an upper layer and a lower layer, the upper layer of the placement table is higher than the lower layer of the placement table, the clamping assembly is arranged on the upper layer of the placement table, and the clamping assembly is used to clamp the PCB board transported from the loading assembly, the lifting assembly is arranged on the lower layer of the placement table, and the lifting assembly is used to transport the PCB board located on the upper layer of the placement table to the lower layer of the placement table, and the second belt assembly is arranged on the lower layer of the placement table, and the second belt assembly is used to transport the PCB board out of the fully automatic pick-and-place equipment for PCB board testing.

10. A fully automatic pick-and-place device for PCB board testing according to any one of claims 1 to 9, characterized in that: The workbench is provided with a non-conforming area, and the non-conforming area is used for placing products that fail the test.

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