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

Abstract

The utility model relates to a full-automatic pick-and-place device for PCB testing. The full-automatic pick-and-place device 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 utility model relates to the technical field of PCB board taking and placing equipment, and particularly relates to a full-automatic taking and placing equipment for PCB board testing. BACKGROUND

[0002] The existing PCB board products need to be manually taken and placed during testing, and manual placement is time-consuming and laborious, resulting in low efficiency of feeding and discharging.

[0003] The manual taking and placing method has low efficiency due to the position relationship between the testing instrument and the production line equipment, and thus one worker can only be responsible for the feeding work of one to two testing instruments, which reduces the testing efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a full-automatic taking and placing equipment for PCB board testing.

[0005] The utility model discloses a full-automatic taking and placing equipment for PCB board testing, which comprises a workbench, a feeding assembly, a testing assembly, a mechanical arm and a discharging assembly.

[0006] In an embodiment, the mechanical arm comprises a motion shaft 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 shaft assembly, and the other end of the motion shaft assembly is arranged on the workbench.

[0007] In an embodiment, the motion shaft assembly comprises a base, a first short shaft, a second short shaft, a third short shaft, a first long shaft, a second long shaft and a rotating block; the base is fixedly arranged on the workbench, the first short shaft is rotatably arranged on the base, one end of the first long shaft is rotatably connected with the first short shaft, the other end of the first long shaft is rotatably connected with one end of the second long shaft, the other end of the second long shaft is rotatably connected with the second short shaft, the second short shaft is rotatably connected with the third short shaft, and the rotating block is rotatably arranged on the third short shaft.

[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 suction nozzles in each row, and the suction nozzles in each row are equidistantly spaced.

[0009] In one embodiment, the test assembly comprises 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; the constant current power supply is used to supply power to the testers.

[0010] In one embodiment, each tester is externally provided with a shielding box, and each tester has at least two test parts for placing the PCB to be tested; the test drawers are slidingly arranged in the shielding box.

[0011] In one embodiment, the feeding assembly comprises 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 transportation cylinder assembly; the support table is located on the center 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 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 close to the second end of the first belt assembly, the transportation cylinder assembly is arranged on the second support assembly, and the transportation cylinder is used to transport the tested PCB to the discharging assembly.

[0012] In one embodiment, the feeding assembly further comprises two groups of fixing frames, and the two fixing frames are arranged on the first end and the second end of the belt assembly respectively; each fixing frame is composed of four fixing rods, and the fixing frame is used to fix the blister box in which the PCB is placed; and each fixing rod is used to abut against four corners of the blister box.

[0013] In one embodiment, the discharging assembly comprises a placing table, a lifting assembly, a clamping assembly, and a second belt assembly; the placing table has an upper layer and a lower layer, the upper layer of the placing table is higher than the lower layer of the placing table, the clamping assembly is arranged on the upper layer of the placing table, the clamping assembly is used to clamp the PCB transported from the feeding assembly, the lifting assembly is arranged on the lower layer of the placing table, the lifting assembly is used to transport the PCB on the upper layer of the placing table to the lower layer of the placing table, and the second belt assembly is arranged on the lower layer of the placing table, and the second belt assembly is used to transport the PCB out of the full-automatic PCB testing device.

[0014] In one embodiment, the workbench is provided with an unqualified area for placing products that fail the test.

[0015] The full-automatic taking and placing equipment for PCB testing has the advantages that: the feeding assembly, the workbench and the discharging assembly are arranged on the same central axis, and the mechanical arm is arranged on the central axis, so that the mechanical arm can be used for feeding and discharging, and therefore at least four test assemblies can be arranged on the two sides of the central axis. The mechanical arm is used to replace manual feeding and discharging of the four test assemblies, the efficiency of feeding and discharging is improved, and the error rate is reduced. The four test assemblies are arranged in the same equipment to simultaneously perform testing, and the testing efficiency of the full-automatic taking and placing equipment for PCB testing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 FIG. 1 is a perspective view of a full-automatic taking and placing equipment for PCB testing according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a perspective view of a feeding assembly in one direction according to an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a perspective view of the feeding assembly in another direction according to an embodiment of the present application;

[0020] Figure 4 FIG. 4 is a perspective view of a discharging assembly in one direction according to an embodiment of the present application;

[0021] Figure 5 FIG. 5 is a perspective view of a test assembly in one direction according to an embodiment of the present application;

[0022] Figure 6 FIG. 6 is a perspective view of a mechanical arm in one direction according to an embodiment of the present application.

[0023] In the drawings: 10, full-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 air cylinder; 232, first cross plate; 240, second support assembly; 241, second air cylinder; 242, second cross plate; 250, first jacking assembly; 251, first stepper motor; 252, first linear bearing; 253, first support plate; 260, second jacking assembly; 261, second stepper motor; 262, second linear bearing; 263, second support plate; 270, conveying air cylinder assembly; 271, rodless air cylinder; 272, sliding plate; 280, fixing frame; 281, fixing rod; 300, testing assembly; 310, control cabinet; 320, shielding box; 330, testing part; 400, mechanical arm; 410, motion shaft assembly; 411, base; 412, first short shaft; 413, second short shaft; 414, third short shaft; 415, first long shaft; 416, second long shaft; 417, rotating block; 420, positioning camera; 430, suction cup assembly; 431, suction nozzle; 500, discharging assembly; 510, placing table; 520, lifting assembly; 530, clamping assembly; 540, second belt assembly. DETAILED DESCRIPTION

[0024] For the purpose of facilitating the understanding of the present application, a more complete understanding of the present application can be had by reference to the following description and accompanying drawings. In the drawings, a preferred embodiment of the present application is disclosed. However, the present application can be realized in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will fully convey the scope of the application to those skilled in the art, and alternatives should be understood therefrom.

[0025] It is to be understood that where the terms "fixed" or "connected" are used herein, they can be directly connected, or there can be intervening elements. Where the terms "connected" or "coupled" are used herein, they can be directly connected, or there can be intervening elements. The terms "vertical", "horizontal", "left", "right" and similar terms are used herein for the purpose of explanation only and are not intended to limit the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "and / or" includes any and all combinations of one or more of the associated listed items.

[0027] In one embodiment, asFigure 1 , Figure 3 , Figure 2 , Figure 4 and Figure 5 As shown, a fully automated pick-and-place device 10 for PCB board testing includes: a workbench 100, a loading component 200, a testing component 300, a robotic arm 400, and an unloading component 500. The loading component 200 is disposed at one end of the workbench 100, and the unloading component 500 is disposed at the other end of the workbench 100. The loading component 200, the workbench 100, and the unloading component 500 are located on the same central axis. The robotic arm 400 is located on the workbench 100 and is located on the central axis. There are at least four sets of testing components 300, and the four sets of testing components 300 are respectively disposed in pairs on both sides of the central axis. The testing components 300 abut against the workbench 100.

[0028] Specifically, by arranging the loading component 200, the worktable 100, and the unloading component 500 on the same central axis, and by arranging the robotic arm 400 on the central axis, the robotic arm 400 can be used for loading and unloading. Therefore, at least four sets of test components 300 can be arranged on both sides of the central axis. Using the robotic arm 400 to replace manual loading and unloading of the four sets of test components 300 improves loading and unloading efficiency and reduces the error rate. Simultaneous testing of four sets of test components 300 in the same device improves the testing efficiency of the fully automatic pick-and-place device 10 for PCB board testing.

[0029] In one embodiment, such as Figure 6 As shown, the robotic 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 disposed on one end of the motion axis assembly 410, and the other end of the motion axis assembly 410 is disposed on the worktable 100. Specifically, the suction cup assembly 430 is used to pick up PCB boards for loading and unloading the test assembly 300. The positioning camera 420 is disposed on the motion axis assembly 410 next to the suction cup. The positioning camera 420 is used to capture images when the suction cup picks up the PCB board, thereby providing precise positioning and picking up of the suction cup, improving the picking accuracy of the suction cup.

[0030] In order to enable the robotic arm 400 to move flexibly on the worktable 100, in one embodiment, such as Figure 6As shown, the motion shaft assembly 410 comprises a base 411, a first short shaft 412, a second short shaft 413, a third short shaft 414, a first long shaft 415, a second long shaft 416, and a rotating block 417; the base 411 is fixedly arranged on the workbench 100, the first short shaft 412 is rotatably arranged on the base 411, the first short shaft 412 is rotatably connected with one end of the first long shaft 415, the other end of the first long shaft 415 is rotatably connected with one end of the second long shaft 416, the other end of the second long shaft 416 is rotatably connected with the second short shaft 413, the second short shaft 413 is rotatably connected with the third short shaft 414, and the rotating block 417 is rotatably arranged on the third short shaft 414, and the rotating block 417 is used to be connected with the positioning camera 420 and the suction cup assembly 430. Specifically, the motion shaft assembly 410 has six movable connection positions, including the connection position of the first short shaft 412 and the base 411, the connection position of the first short shaft 412 and the first long shaft 415, the connection position of the first long shaft 415 and the second long shaft 416, the connection position of the second long shaft 416 and the second short shaft 413, the connection position of the second short shaft 413 and the third short shaft 414, and the connection position of the third short shaft 414 and the rotating block 417. Through the above arrangement, the mechanical arm 400 can move flexibly on the workbench 100, so that the mechanical arm can directly move on the feeding assembly 200, the testing assembly 300 and the discharging assembly 500, and then suck and transport the PCB boards.

[0031] In order to complete feeding and discharging on one testing instrument at a time, in an embodiment, as shown in 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 equidistantly arranged. Specifically, two suction nozzles 431 are needed to suck one PCB board, so eight suction nozzles 431 are arranged on the suction cup, which can simultaneously suck four PCB boards. The testing instrument in the testing assembly 300 has two testing stations, so each testing instrument can test at most two PCB boards at a time. In the working process, the mechanical arm 400 first sucks two PCB boards to be tested to the testing instrument, then sucks the tested PCB boards on the testing instrument, and then puts two PCB boards to be tested into the testing instrument for testing. Through the above method, feeding and discharging can be completed on one testing instrument at a time, without the need for the mechanical arm 400 to suck and transport multiple times, thereby improving the efficiency.

[0032] In an embodiment, as shown in Figure 1 and Figure 5As shown, the test assembly 300 comprises at least two testers (hidden and not shown), a constant current power supply (hidden and 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. The constant current power supply is used to supply power to the testers. Specifically, by stacking the two testers on the control cabinet 310, space can be saved, so that the full-automatic PCB board testing device 10 can test multiple PCB boards at a time during operation, thereby improving the testing efficiency. At the same time, the constant current power supply is arranged in the control cabinet 310, which can provide stable current for the testers, thereby protecting the testers.

[0033] In order to reduce the interference of external links on the testers when testing the PCB boards, in an embodiment, as shown in Figure 5 Each of the testers is externally provided with a shielding box 320. Each of the testers has at least two test parts 330 for placing the PCB boards to be tested. The test drawers are slidingly arranged in the shielding box 320. Specifically, the shielding box 320 is a shielding body made of conductive or magnetic material, which can limit electromagnetic signals in 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 wireless PCB boards. In PCB board testing, the shielding box 320 can absorb internal interference signals and shield external electromagnetic signal interference, ensuring the accuracy and reliability of the test results. The shielding box 320 not only protects the test environment from external electromagnetic interference, but also protects the test equipment and test personnel from electromagnetic radiation. In the test process assisted by a high-frequency transmitter, the shielding box 320 can significantly reduce the strength of electromagnetic radiation, ensuring the safety of the test equipment and test personnel.

[0034] In an embodiment, as shown in Figure 2 and Figure 3As shown, the feeding assembly 200 comprises a support table 210, a first belt assembly 220, a first support assembly 230, a second support assembly 240, a first jacking assembly 250, a second jacking assembly 260, and a transport cylinder assembly 270. The support table 210 is located on the center axis. The first end of the first belt assembly 220 is located on the support table 210, and 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. The second support assembly 240 is arranged on the second end of the first belt assembly 220. The first support assembly 230 is arranged on the support table 210 and is arranged close to the first end of the first belt assembly 220. The second support assembly 240 is arranged on the workbench 100 and is arranged close to the second end of the first belt assembly 220. The transport cylinder assembly 270 is arranged on the second support assembly 240, and the transport cylinder is used to transport the PCB board tested to the discharging assembly 500.

[0035] In one embodiment, the feeding assembly 200 is divided into a stacking area, a testing area, and an empty tray area. Specifically, the stacking area is used to stack the PCB boards on the blister box to be tested. The testing area is used to place the blister box loaded with the PCB boards being fed. The empty tray area is used to place the empty blister box.

[0036] In this embodiment, as shown in FIG. 2, the feeding assembly 200 comprises a support table 210, a first belt assembly 220, a first support assembly 230, a second support assembly 240, a first jacking assembly 250, a second jacking assembly 260, and a transport cylinder assembly 270. Figure 2 and Figure 3As shown, the stacking area is located on the support table 210, and the first lifting assembly 250 and the first support assembly 230 are located in the stacking area. The first lifting assembly 250 comprises a first stepper motor 251, four first linear bearings 252, and a first support plate 253. The first stepper motor 251 is arranged on the support table 210, the four first linear bearings 252 are arranged on the support table 210 around the first stepper motor 251 respectively, and the first support 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 support plate 253 to lift, and the first linear bearings 252 are used to stabilize the first support plate 253 to lift linearly. The first support assembly 230 comprises two first air cylinders 231, and each of the two first air cylinders 231 is provided with a first horizontal plate 232. The two first air cylinders 231 are arranged on the two sides of the first belt assembly 220 respectively, and are used to drive the two first horizontal plates 232 to approach or move away from the blister box placed in the stacking area, so as to control the two first horizontal plates 232 to support the blister box. The stacking area is used to stack the PCB to be tested, and the PCB is loaded in the blister box. When the blister box is placed in the stacking area, the first horizontal plate 232 will support the blister box; the first stepper motor 251 drives the first support plate 253 to support the bottommost blister box, and then the two first air cylinders 231 drive the two first horizontal plates 232 to move away from the blister box, so that the first horizontal plate 232 does not support 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 air cylinders 231 drive the two first horizontal plates 232 to approach the blister box, so that the two first horizontal plates 232 support the second bottommost blister box; finally, the first stepper motor 251 drives the bottommost blister box to descend and is transported to the first belt assembly 220, and the first belt assembly 220 transports the blister box from the stacking area to the test area, thereby completing the feeding operation.

[0037] In the embodiment, the empty tray area is located at one end of the feeding 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 loaded with the PCB to be tested first passes through the test area and finally reaches the empty tray area. In the test area, the PCB on the blister box is sucked by the mechanical arm 400 to the test assembly 300 for testing, and finally the empty blister box is transported to the empty tray area by the first conveying assembly.

[0038] In the embodiment, as shown in Figure 2 and Figure 3As shown, the second support assembly 240, the second jacking assembly 260 and the transport cylinder assembly 270 are arranged on the empty tray area of the feeding assembly 200. Specifically, the second jacking assembly 260 comprises a second stepper motor 261 arranged on the workbench 100, two second linear bearings 262 arranged on the workbench 100 near the two ends of the second stepper motor 261 respectively, and a second support plate 263 arranged on the second stepper motor 261 and the two second linear bearings 262. The transport cylinder assembly 270 comprises a rodless cylinder 271 arranged on the second support plate 263 and a sliding plate 272 arranged on the rodless cylinder 271. The second support assembly 240 comprises two second cylinders 241, and each of the two second cylinders 241 is provided with a second cross plate 242. The two second cylinders 241 are arranged on the two sides of the first belt assembly 220 respectively, and are used to drive the two second cross plates 242 to move close to or away from the blister box placed on the empty tray area, so as to control the two second cross plates 242 to support the blister box.

[0039] In the above embodiment, as shown in Figure 2 and Figure 3 When the empty blister box is transported from the test area to the empty tray area, the second stepper motor 261 drives the second support plate 263, the transport cylinder assembly 270 on the second support plate 263 jacks up the blister box moved to the empty tray area, and then the two second cylinders 241 drive the two second cross plates 242 to move close to the blister box, so that the two cross plates support the blister box in the empty tray area. When the blister box needs to be transported out of the empty tray area, the second stepper motor 261 drives the second support plate 263, the transport cylinder assembly 270 on the second support plate 263 supports the bottommost blister box; then the two second cylinders 241 drive the two second cross plates 242 to move away from the blister box, so that the second cross plates 242 do not 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 cross plates 242 to move close to the stacking area, and then the two second cross plates 242 jack up and support the second bottommost blister box, and then the first stepper motor 251 drives the bottommost blister box to descend to a certain height, so that the bottommost blister box moves away from the second bottommost blister box, and finally the rodless cylinder 271 and the sliding plate 272 drive the blister box to the discharging assembly, thereby completing the transportation operation of the empty tray.

[0040] In one embodiment, the first belt assembly 220 is a variable pitch belt assembly. Specifically, the first belt assembly 220 includes two belt frames and two belts. The two belt frames are arranged in parallel, and one end of each of the two belt frames is arranged on the support table 210, and the other end of each of the two belt frames is arranged on the workbench 100. The two belts are arranged in rotation on the two belt frames, respectively. The length of the belt frame can be adjusted, and the tightness of the belt can also be adjusted accordingly. Through the above arrangement, the feeding assembly 200 can adapt to equipment of different lengths.

[0041] In order to stably stack the blister boxes on the feeding assembly 200, in one embodiment, as shown in Figure 2 and Figure 3 The feeding assembly 200 further includes two sets of fixing frames 280, and each of the two fixing frames 280 is arranged on the first end and the second end of the belt assembly, respectively. Each of the fixing frames 280 is composed of four fixing rods 281, and the fixing frame 280 is used for fixing the blister box in which the PCB is placed, and each of the fixing rods 281 is used for abutting against four corners of the blister box. Specifically, one set of fixing frames 280 is arranged in the stacking area of the feeding assembly 200, and the other set of fixing frames 280 is arranged in the empty tray area of the feeding assembly 200. The size of the area surrounded by the four fixing rods 281 of the fixing frame 280 is adapted to the size of the area of the blister tray. Through the above arrangement, the blister boxes can be stably stacked on the feeding assembly 200.

[0042] In the above embodiment, photoelectric sensors are arranged on the first support plate 253 and the sliding plate 272, and the photoelectric sensors are used for testing whether the blister box leaves the first support plate 253 and the sliding plate 272.

[0043] In one embodiment, as shown in Figure 4 The discharging assembly 500 includes a placement table 510, a lifting assembly 520, a clamping assembly 530, and a second belt assembly 540. The placement table 510 has an upper layer and a lower layer, and the upper layer of the placement table 510 is higher than the lower layer of the placement table 510. The clamping assembly 530 is arranged on the upper layer of the placement table 510, and the clamping assembly 530 is used for clamping the PCB transported from the feeding assembly 200. The lifting assembly 520 is arranged on the lower layer of the placement table 510, and the lifting assembly 520 is used for transporting the PCB on the upper layer of the placement table 510 to the lower layer of the placement table 510. The second belt assembly 540 is arranged on the lower layer of the placement table 510, and the second belt assembly 540 is used for transporting the PCB out of the full-automatic pick-and-place equipment 10 for PCB testing.

[0044] In the embodiment, the placing table 510 is located on the side of the workbench 100 away from the supporting table 210. The clamping assembly 530 is used to clamp and fix the empty suction plastic box transported from the feeding area. At this time, the clamped and fixed suction plastic box is used to place the qualified PCB board. When the suction plastic box is full of the PCB board, the lifting assembly 520 will lift and support the suction plastic box full of the PCB board, and then lower to a certain height, so as to not affect the next empty suction plastic box clamped and fixed by the clamping assembly 530. After repeating the above operation for many times, when the lifting assembly 520 is stacked with a certain number of suction plastic boxes, the lifting assembly 520 will be lowered to the position of the second belt assembly 540 to place all the suction plastic boxes on the second belt assembly 540, and then the second belt assembly 540 is used to transport the suction plastic box full of the qualified PCB board to the full-automatic taking and placing device 10 for PCB board test, so as to complete the discharging operation.

[0045] In order to distinguish the qualified PCB board from the unqualified PCB board, in an embodiment, as shown in the figure, the workbench 100 is provided with an unqualified area 110 for placing the unqualified product. Specifically, the unqualified area 110 is provided with a suction plastic box for placing the unqualified PCB board. When the tester tests the unqualified PCB board, the mechanical arm 400 will suck the unqualified PCB board to the unqualified area 110, so as to avoid mixing the qualified PCB board with the unqualified PCB board. Figure 1

[0046] Compared with the prior art, the utility model has at least the following advantages: by setting the feeding assembly 200, the workbench 100 and the discharging assembly 500 on the same central axis, and setting the mechanical arm 400 on the central axis, the mechanical arm 400 can be used for feeding and discharging, so at least four test assemblies 300 can be arranged on the two sides of the central axis. The mechanical arm 400 is used to replace manual feeding and discharging of the four test assemblies 300, so as to improve the feeding and discharging efficiency and reduce the error rate. By setting four test assemblies 300 in the same device to simultaneously test, the test efficiency of the full-automatic taking and placing device 10 for PCB board test can be improved.

[0047] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0048] ​The above-mentioned embodiments only express several embodiments of the application, which are described in a more specific and detailed manner, but should not be understood as a limitation to the scope of the utility model patent. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the application, which all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A fully automatic pick-and-place apparatus for PCB board testing, characterized by, The utility model relates to a kind of PCB test equipment, including: Workbench, feeding assembly, test assembly, mechanical arm and discharge assembly; The feeding assembly is arranged at one end of the workbench, the discharge assembly is arranged at the other end of the workbench, the feeding assembly, the workbench and the discharge assembly are located on the same central axis, the mechanical arm is located on the workbench, and the mechanical arm is located on the central axis; The test assembly has at least four groups, and four groups of the test assembly are arranged on both sides of the central axis respectively, and the test assembly is in contact with the workbench.

2. The full-automatic pick-and-place device for PCB testing according to claim 1, characterized in that, The mechanical arm includes a motion shaft 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 shaft assembly, and the other end of the motion shaft assembly is arranged on the workbench.

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

4. The full-automatic pick-and-place apparatus for PCB testing according to claim 2, wherein, The suction cup assembly has at least eight suction nozzles, and the eight suction nozzles are arranged in two rows, four in each row, and the suction nozzles in each row are equidistantly arranged.

5. The full-automatic pick-and-place apparatus for PCB testing according to claim 1, wherein, 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; the constant-current power supply is used to supply power to the testers.

6. The full-automatic pick-and-place apparatus for PCB testing according to claim 5, wherein, Each tester is externally provided with a shielding box, and each tester has at least two test parts for placing PCBs to be tested; the test drawers are slidably arranged in the shielding box.

7. The full-automatic pick-and-place apparatus for PCB testing according to claim 1, wherein, The feeding assembly includes a support table, a first belt assembly, a first support assembly, a second support assembly, a first jacking assembly, a second jacking assembly and a transportation 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 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 close to the second end of the first belt assembly; the transportation cylinder assembly is arranged on the second support assembly, and the transportation cylinder is used to transport the tested PCBs to the discharge assembly.

8. The fully automatic pick-and-place apparatus for testing PCBs according to claim 7, characterized in that, The feeding assembly further comprises two groups of fixing frames, the two fixing frames are respectively arranged on the first end and the second end of the belt assembly, each fixing frame is composed of four fixing rods, the fixing frame is used for fixing a blister box in which a PCB is placed, and each fixing rod is used for abutting against four corners of the blister box.

9. The full-automatic pick-and-place apparatus for PCB testing according to claim 1, wherein, The discharging assembly comprises a placing table, a lifting assembly, a clamping assembly and a second belt assembly; the placing table has an upper layer and a lower layer, the upper layer of the placing table is higher than the lower layer of the placing table, the clamping assembly is arranged on the upper layer of the placing table, the clamping assembly is used for clamping the PCB transported from the feeding assembly, the lifting assembly is arranged on the lower layer of the placing table, the lifting assembly is used for transporting the PCB on the upper layer of the placing table to the lower layer of the placing table, and the second belt assembly is arranged on the lower layer of the placing table, and the second belt assembly is used for transporting the PCB out of the full-automatic taking and placing equipment for PCB testing.

10. A full-automatic pick-and-place apparatus for PCB testing according to any one of claims 1-9, characterized in that, An unqualified area is arranged on the workbench, and the unqualified area is used for placing products that fail to pass the test.

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