Compression resistance detection device for PCB (Printed Circuit Board)

Abstract

The utility model relates to a PCB (printed circuit board) compression resistance detection device which comprises two stand frames, a detection table is mounted at the tops of the two stand frames, a first conveying belt and a second conveying belt are arranged on the front side and the rear side of the detection table respectively, and a detection electric cylinder is arranged at the top of the detection table and located between the first conveying belt and the second conveying belt. A pressing table and a connecting plate close to the pressing table are installed at the telescopic end of the detection electric cylinder, a CCD industrial camera is installed on the connecting plate, and the CCD industrial camera, an image processor and a PLC are arranged above the second conveying belt. When the compression resistance detection device for the PCB is used, the PCB is firstly placed on the first conveying belt and then conveyed to the detection table to be subjected to compression resistance detection, and after detection is completed, image information of the PCB is shot through the CCD industrial camera and transmitted to the image processor to be analyzed and judged whether the PCB is qualified or not; and then the PLC controls the driving unit to drive the two collecting boxes to move left and right according to the information of the image processor, so that classified collection of qualified products and unqualified products is realized, and the risk of classification errors is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board detection technical field, concretely is a kind of PCB circuit board compression detection device. BACKGROUND

[0002] In electronic manufacturing industry, PCB (printed circuit board) is as the basic component of electronic equipment, and its quality is directly related to the performance and reliability of final product, therefore, strict compression detection is indispensable to PCB circuit board in production process.

[0003] In prior art, when PCB circuit board is detected by compression, operator needs to manually adjust the position of collection box according to detection result, so as to collect qualified or unqualified PCB circuit board into corresponding collection box, and in the process of classification collection, excessive reliance on manual operation not only is inefficient, but also is easily affected by operator fatigue and negligence, so as to increase the risk of classification error, therefore, a kind of PCB circuit board compression detection device is particularly proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of PCB circuit board compression detection device to overcome the deficiencies in the prior art described above.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] A kind of PCB circuit board compression detection device, including two station frames, the top of two station frames is fixedly installed with detection table, the inside of detection table is fixedly installed with the first conveyor belt close to its back side and the second conveyor belt close to its front side, the top of detection table is provided with detection cylinder between the first conveyor belt and the second conveyor belt, the telescopic end of detection cylinder is fixedly installed with pressure table, the telescopic rod outside detection cylinder is fixedly installed with the connecting plate close to pressure table, the CCD industrial camera is fixedly installed on the connecting plate, the image processor electrically connected with CCD industrial camera and PLC controller electrically connected with image processor are arranged above the second conveyor belt, and automatic collection mechanism is arranged in front of the second conveyor belt.

[0007] The automatic collection mechanism includes side support plates fixedly installed on the front side of two station frames, the front side of the side support plate is fixedly installed with two support blocks, two support cross bars are fixedly installed between the two support blocks, the moving plate is slidably installed on the outside of two support cross bars, the right side of right side support block is provided with drive unit for driving the left and right movement of moving plate, the drive unit is electrically connected with PLC controller, and the top of moving plate is fixedly installed with two collection boxes, and the conveying end of two collection boxes is correspondingly arranged with the second conveyor belt.

[0008] The beneficial effects of the utility model are: when using, first, the PCB circuit board is placed on the first conveying belt, then is conveyed to the detection table to carry out compression resistance detection, after detection is completed, the circuit board information is shot by the CCD industrial camera, and is transmitted to the image processor to analyze the compression resistance performance, whether to judge, then according to the information of the image processor, the PLC controller controls the driving unit to drive two collection boxes to move left and right, ensures that the qualified and unqualified circuit boards are collected respectively, after the detection of the previous PCB circuit board is completed, the new PCB circuit board can be placed on the first conveying belt immediately, and the circuit board after detection is completed is pushed to the second conveying belt automatically, and a new round of compression resistance detection is started simultaneously, so repeated, the continuous conveying, compression resistance detection and classification collection operation of the PCB circuit board can be realized, and the whole process not only improves the detection efficiency, but also reduces the classification error risk.

[0009] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0010] Further, the top of the detection table is fixedly installed with top frames close to the left and right sides thereof, the top of two top frames is fixedly installed with vertical plates close to the front sides thereof, the top of the vertical plate is fixedly installed with an installation crosspiece, the detection cylinder is fixedly installed on the installation crosspiece, and the image processor and the PLC controller are both fixed to the top of the installation crosspiece.

[0011] Further, the driving unit comprises a servo motor fixedly installed on the right side of the right side supporting block, the servo motor is electrically connected with the PLC controller, the output end of the servo motor is fixedly installed with a threaded rod penetrating into the inside of the moving plate, the threaded rod is rotatably installed between the two supporting blocks and is screwedly installed in the inside of the moving plate.

[0012] Further, the front side of the second conveying belt is fixedly installed with a guide table, and the guide table is inclined to the direction of the collection box.

[0013] Further, the inner bottom wall and the front side inner wall of the two collection boxes are both fixedly installed with sponge pads.

[0014] Further, the top of the detection table is fixedly installed with a detection switch, and the detection switch is electrically connected with the detection cylinder. ACCURACY

[0015] Figure 1 It is one perspective structural schematic view of the utility model PCB circuit board compression resistance detection device.

[0016] Figure 2 It is another perspective structural schematic view of the utility model PCB circuit board compression resistance detection device.

[0017] Figure 3This is a schematic diagram of the exploded structure of the PCB circuit board compression testing device of this utility model;

[0018] Figure 4 A schematic diagram showing the connection between the supporting crossbar and the movable plate structure;

[0019] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Stand; 2. Inspection table; 3. Conveyor belt No. 1; 4. Conveyor belt No. 2; 5. Inspection electric cylinder; 6. Press table; 7. Connecting plate; 8. CCD industrial camera; 9. Processor; 10. PLC controller; 11. Side support plate; 12. Support block; 13. Support crossbar; 14. Moving plate; 15. Collection box; 16. Top frame; 17. Vertical plate; 18. Mounting crossbar; 19. Servo motor; 20. Threaded rod; 21. Guide table; 22. Sponge pad; 23. Inspection switch. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] Example 1, such as Figures 1-5 As shown, a PCB circuit board pressure testing device includes two stands 1. A testing platform 2 is fixedly installed on the top of the two stands 1. A first conveyor belt 3 near its rear and a second conveyor belt 4 near its front are fixedly installed inside the testing platform 2. A testing cylinder 5 is set on the top of the testing platform 2 between the first conveyor belt 3 and the second conveyor belt 4. A pressure plate 6 is fixedly installed on the telescopic end of the testing cylinder 5. A connecting plate 7 near the pressure plate 6 is fixedly installed on the outside of the telescopic rod of the testing cylinder 5. A CCD industrial camera 8 is fixedly installed on the connecting plate 7. An image processor 9 electrically connected to the CCD industrial camera 8 and a PLC controller 10 electrically connected to the image processor 9 are set above the second conveyor belt 4. An automatic collection mechanism is set in front of the second conveyor belt 4.

[0024] Specifically, the automatic collection mechanism includes side support plates 11 fixedly installed on the front side of the two station frames 1. Two support blocks 12 are fixedly installed on the front side of the side support plates 11. Two support crossbars 13 are fixedly installed between the two support blocks 12. A movable plate 14 is slidably installed on the outside of the two support crossbars 13. A drive unit for driving the movable plate 14 to move left and right is provided on the right side of the right support block 12. The drive unit is electrically connected to the PLC controller 10. Two collection boxes 15 are fixedly installed on the top of the movable plate 14. Both collection boxes 15 correspond to the conveying end of the second conveyor belt 4.

[0025] In use, the operation process is as follows: first, the PCB circuit board to be detected is directly placed on the top of the first conveying belt 3, then the first conveying belt 3 is started to work, the PCB circuit board is conveyed to the top of the detection table 2, then the detection cylinder 5 is started to extend to push the pressure table 6 to descend, the PCB circuit board on the top of the detection table 2 is subjected to pressure resistance detection, after the detection is completed, the detection cylinder 5 is retracted, at the same time, the CCD industrial camera 8 is started to shoot the detailed information on the top of the PCB circuit board, and the information is transmitted to the image processor 9, after the image processor 9 receives the picture shot by the CCD industrial camera 8, the pressure resistance performance of the PCB circuit board is analyzed through the built-in algorithm to judge whether it is qualified, after the analysis is completed, the image processor 9 transmits the qualified or unqualified information to the PLC controller 10, according to the received information, the PLC controller 10 controls the driving unit to drive the moving plate 14 to move the two collection boxes 15 left or right to ensure that the two collection boxes 15 can accurately receive the qualified or unqualified PCB circuit boards conveyed out by the second conveying belt 4, after the above steps are completed, new PCB circuit boards can be placed on the top of the first conveying belt 3 again, with the continuous operation of the first conveying belt 3, the new PCB circuit boards are conveyed to the top of the detection table 2, in the process, the new PCB circuit boards will naturally push the PCB circuit boards on the detection table 2 that have completed the detection to the top of the second conveying belt 4, then the second conveying belt 4 is started to convey the PCB circuit boards that have completed the detection to the direction of the two collection boxes 15, at the same time, the new PCB circuit boards on the detection table 2 begin the new detection process, this whole set of process not only significantly improves the detection efficiency, but also effectively reduces the risk of classification error due to the use of automatic control and accurate classification mechanism.

[0026] Embodiment 2, as shown in Figures 1-3 , this embodiment is a further improvement based on embodiment 1, which is as follows:

[0027] The top of the detection table 2 is fixedly installed with top frames 16 close to the left and right sides thereof, the top of each top frame 16 is fixedly installed with a vertical plate 17 close to the front side thereof, the top of the vertical plate 17 is fixedly installed with a mounting cross frame 18, the detection cylinder 5 is fixedly installed on the mounting cross frame 18, and the image processor 9 and the PLC controller 10 are both fixed to the top of the mounting cross frame 18.

[0028] In this way, the vertical plate 17 is supported on the top of the detection table 2 by the two top frames 16, and the detection cylinder 5 is supported and fixed above the detection table 2 by the mounting cross frame 18 installed on the top of the vertical plate 17.

[0029] Embodiment 3, as shown in Figures 1-4As shown in the figure, the embodiment is further improved on the basis of example 1, which is as follows:

[0030] The driving unit includes a servo motor 19 fixedly installed on the right side of the right support block 12, the servo motor 19 is electrically connected with the PLC controller 10, and the output end of the servo motor 19 is fixedly installed with a threaded rod 20 penetrating into the inside of the moving plate 14, the threaded rod 20 is rotatably installed between the two support blocks 12 and is screwedly installed in the inside of the moving plate 14.

[0031] In this way, by controlling the servo motor 19 to drive forward and reverse through the PLC controller 10, the servo motor 19 drives the threaded rod 20 to rotate forward and reverse in the inside of the moving plate 14, which can force the moving plate 14 to move left and right with the two collecting boxes 15, when the collecting box 15 at the right end moves to the lower side of the second conveying belt 4, it can receive qualified PCB circuit boards, and when the collecting box 15 at the left end moves to the lower side of the second conveying belt 4, it can receive unqualified PCB circuit boards.

[0032] Example 4, as shown in the figure, the embodiment is further improved on the basis of example 1, which is as follows: Figure 1

[0033] The front of the second conveying belt 4 is fixedly installed with a guide table 21, and the guide table 21 is inclined to the direction of the collecting box 15.

[0034] In this way, by installing the guide table 21, the PCB circuit boards conveyed by the second conveying belt 4 can be smoothly guided into the inside of the collecting box 15.

[0035] Example 5, as shown in the figure, the embodiment is further improved on the basis of example 1, which is as follows: Figures 2-3

[0036] The inner bottom wall and the front inner wall of the two collecting boxes 15 are fixedly installed with sponge pads 22.

[0037] In this way, by installing the sponge pad 22, the impact of the PCB circuit board on the inner wall of the collecting box 15 can be alleviated, so as to protect the PCB circuit board.

[0038] Example 6, as shown in the figure, the embodiment is further improved on the basis of example 1, which is as follows: Figure 2

[0039] The top of the detection table 2 is fixedly installed with a detection switch 23, and the detection switch 23 is electrically connected with the detection cylinder 5.

[0040] In this way, by installing the detection switch 23, the detection cylinder 5 can be conveniently controlled to start.

[0041] ​​​Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A PCB circuit board compression detection device, comprising two station frames (1), the top of the two station frames (1) is fixedly provided with a detection table (2), characterized in that: The inside of the detection table (2) is fixedly installed with a first conveying belt (3) close to the rear side and a second conveying belt (4) close to the front side, the top of the detection table (2) is provided with a detection cylinder (5) between the first conveying belt (3) and the second conveying belt (4), the telescopic end of the detection cylinder (5) is fixedly installed with a pressing table (6), the outside of the telescopic rod of the detection cylinder (5) is fixedly installed with a connecting plate (7) close to the pressing table (6), the CCD industrial camera (8) is fixedly installed on the connecting plate (7), the top of the second conveying belt (4) is provided with an image processor (9) electrically connected with the CCD industrial camera (8) and a PLC controller (10) electrically connected with the image processor (9), and the front of the second conveying belt (4) is provided with an automatic collecting mechanism. The automatic collecting mechanism comprises side support plates (11) fixedly installed on the front sides of the two station frames (1), the front sides of the side support plates (11) are fixedly installed with two support blocks (12), two support cross rods (13) are fixedly installed between the two support blocks (12), and the outside of the two support cross rods (13) is slidably installed with a moving plate (14). The right side of the right support block (12) is provided with a driving unit for driving the moving plate (14) to move leftward and rightward, the driving unit is electrically connected with the PLC controller (10), and the top of the moving plate (14) is fixedly installed with two collecting boxes (15) corresponding to the conveying end of the second conveying belt (4).

2. The PCB circuit board pressure resistance detection device according to claim 1, characterized in that: The top of the detection table (2) is fixedly installed with top frames (16) close to the left and right sides, the top of the two top frames (16) is fixedly installed with vertical plates (17) close to the front sides, the top of each vertical plate (17) is fixedly installed with a mounting cross frame (18), the detection cylinder (5) is fixedly installed on the mounting cross frame (18), and the image processor (9) and the PLC controller (10) are both fixedly installed on the top of the mounting cross frame (18).

3. The PCB circuit board pressure resistance detection device according to claim 1, characterized in that: The driving unit comprises a servo motor (19) fixedly installed on the right side of the right support block (12), the servo motor (19) is electrically connected with the PLC controller (10), the output end of the servo motor (19) is fixedly installed with a threaded rod (20) penetrating into the inside of the moving plate (14), the threaded rod (20) is rotatably installed between the two support blocks (12) and is threadedly installed in the inside of the moving plate (14).

4. The PCB circuit board pressure resistance detection device according to claim 1, characterized in that: The front side of the second conveying belt (4) is fixedly installed with a guide table (21), and the guide table (21) is inclined to the direction of the collecting box (15).

5. The PCB circuit board pressure resistance detection device according to claim 1, characterized in that: The inner bottom wall and the front inner wall of each collecting box (15) are both fixedly installed with a sponge pad (22).

6. The PCB circuit board pressure resistance detection device according to claim 1, characterized in that: The top of the detection table (2) is fixedly installed with a detection switch (23), and the detection switch (23) is electrically connected with the detection cylinder (5).

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