PCB (Printed Circuit Board) detection table

Abstract

The utility model discloses a PCB (printed circuit board) detection platform, which belongs to the technical field of PCB detection and comprises a casing and a visual detector, the casing is sequentially provided with a placing platform, a centering clamping component and a conveying belt from an input end to an output end, a pushing component is arranged in the placing platform, intermittent motors are arranged at the bottoms of the centering clamping component and the conveying belt, and the visual detector is arranged on the casing. And the visual detector is fixedly mounted at the bottom of the mounting frame. According to the utility model, the pushing assembly, the conveying belt and the centering and clamping assembly are arranged, the screw rod is driven by the pushing motor to rotate, the push block is driven by the screw rod to push the to-be-tested PCB on the placing table to a test area, and meanwhile, the reciprocating connecting rod is driven by the intermittent motor to rotate, so that the clamping plate moves from the two ends to the center and clamps the PCB, and the effect of centering and clamping the PCB is realized; and after the visual detector and the worker complete the test, the intermittent motor drives the clamping plate to reset and outputs the PCB through the conveying belt, so that the working efficiency is improved, and the function of simultaneously carrying out multiple tests is realized.

Description

Technical Field

[0001] This utility model relates to the field of PCB board testing technology, and in particular to a PCB board testing station. Background Technology

[0002] PCB boards, also known as printed circuit boards, are carriers for the electrical interconnection of electronic components. After production, PCB boards need to be inspected to screen for defective products, including defect detection and connectivity testing. In the defect detection step, machine vision inspection is gradually replacing traditional manual magnifying glass inspection.

[0003] The existing PCB board inspection station cannot support visual inspection and connectivity testing at the same time. After visual inspection, the PCB board needs to be manually removed for subsequent connectivity testing, which is a single function.

[0004] Existing PCB board testing stations require manual operation using fixtures to hold the PCB board during connectivity testing, resulting in low work efficiency.

[0005] To address these issues, a PCB board inspection station is proposed. Utility Model Content

[0006] The purpose of this invention is to solve the problems of existing PCB board inspection stations that cannot simultaneously support visual inspection and connectivity testing and require manual operation using fixtures to hold the PCB board, and to propose a PCB board inspection station.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A PCB board inspection station includes a housing and a vision detector. The input end of the housing is provided with a placement stage. The surface of the placement stage has a semi-open push groove. A push component is disposed in the push groove. A plug is fixedly connected to the open side of the push groove. A centering clamping component is disposed in the housing corresponding to the output end of the push component. A mounting frame is disposed in the housing corresponding to the centering clamping component. A conveyor belt is disposed in the housing corresponding to the output end of the centering clamping component. An intermittent motor is disposed at the bottom of the centering clamping component and the conveyor belt. The vision detector is fixedly mounted on the bottom of the mounting frame.

[0009] Preferably, a through hole is provided at the center of one side of the plug.

[0010] Preferably, the pushing assembly includes a limiting slide rod, a lead screw, and a push block. One end of the limiting slide rod is fixedly connected to the pushing groove, and the other end of the limiting slide rod is fixedly connected to one side of the plug. One end of the lead screw is rotatably connected to the pushing groove, and the other end of the lead screw passes through the through hole of the plug and is rotatably connected to a pushing motor. The two sides of the bottom of the push block are slidably connected to the slide rod, and the center of the bottom of the push block is threadedly connected to the lead screw.

[0011] Preferably, the centering clamping assembly includes a fixed plate and a partition plate. The two sides of the fixed plate are fixedly connected to the housing. A gear is rotatably connected to the center of the fixed plate. Multiple slide rails are fixedly connected to the two sides of the upper surface of the fixed plate. An active rack slider and a driven rack slider are slidably installed in the slide rails. A clamping plate is fixedly installed on the top of the active rack slider and the driven rack slider.

[0012] Preferably, the upper surface of the active rack slider is provided with a mounting groove, a connecting rod is fixedly connected in the mounting groove, and the bottom of the connecting rod passes through the active rack slider and the fixing plate and is fixedly connected to a reciprocating groove.

[0013] Preferably, through holes are formed at the bottom of the slide rail and on the surface of the fixing plate, which are aligned with the movement trajectory of the matching connecting rod.

[0014] Preferably, the two sides of the partition are fixedly connected to the housing, a rotating rod is rotatably connected to the partition corresponding to the reciprocating slide groove, a reciprocating connecting rod is fixedly connected to the top of the rotating rod, and a bevel gear is fixedly connected to the bottom of the rotating rod, the bevel gear meshing with the intermittent motor.

[0015] Preferably, a driven wheel is fixedly connected to one side of the input end of the conveyor belt, a drive wheel is fixedly installed in the middle of the intermittent motor shaft, and a transmission belt is provided between the drive wheel and the driven wheel.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up a pushing component, a conveyor belt, and a centering clamping component, uses a pushing motor to drive a lead screw to rotate, which in turn drives a pusher block to push the PCB board to be tested on the test platform to the test area. At the same time, an intermittent motor drives a reciprocating linkage to rotate, which in turn drives the active rack and pinion slider and the driven rack and pinion slider to slide synchronously under the action of gears. This causes the clamping plate to move from both ends to the center and clamp the PCB board, thus achieving the function of centering and clamping the PCB board. After the vision detector and the worker complete the test, the intermittent motor drives the clamping plate to reset and outputs the PCB board through the conveyor belt. This realizes the function of simultaneously performing visual inspection and connectivity testing, improving work efficiency. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of a PCB board testing station proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a PCB board testing station proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a pusher component in a PCB board testing station proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the centering clamping component and conveyor belt of a PCB board inspection table proposed in this utility model;

[0022] Figure 5 This is a structural assembly diagram of a PCB board inspection table centering clamping component proposed in this utility model;

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0024] Figure 7 This is a structural assembly diagram of an active rack and pinion slider in a PCB board testing station proposed in this utility model.

[0025] In the diagram: 1. Housing; 2. Vision detector; 3. Placement platform; 4. Push chute; 5. Plug; 6. Mounting frame; 7. Conveyor belt; 8. Intermittent motor; 9. Limiting slide bar; 10. Lead screw; 11. Push block; 12. Push motor; 13. Fixing plate; 14. Partition plate; 15. Gear; 16. Slide rail; 17. Driving rack and pinion slider; 18. Driven rack and pinion slider; 19. Clamping plate; 20. Mounting slot; 21. Connecting rod; 22. Reciprocating chute; 23. Rotating rod; 24. Reciprocating connecting rod; 25. Bevel gear; 26. Driven wheel; 27. Drive wheel; 28. Transmission belt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1-7A PCB board inspection station includes a housing 1 and a vision detector 2. The input end of the housing 1 is provided with a placement stage 3. The surface of the placement stage 3 is provided with a semi-open push slide 4. A push component is provided in the push slide 4. A plug 5 is fixedly connected to the open side of the push slide 4. A centering clamping component is provided in the housing 1 at the output end corresponding to the push component. A mounting frame 6 is provided in the housing 1 at the center of the centering clamping component. A conveyor belt 7 is provided in the housing 1 at the output end corresponding to the centering clamping component. An intermittent motor 8 is provided at the bottom of the centering clamping component and the conveyor belt 7. The vision detector 2 is fixedly installed at the bottom of the mounting frame 6.

[0028] Furthermore, a through hole is provided at the center of one side of the plug 5 to support the lead screw 10 for connecting to the motor.

[0029] Furthermore, the pushing assembly includes a limiting slide bar 9, a lead screw 10, and a push block 11. One end of the limiting slide bar 9 is fixedly connected to the pushing groove 4, and the other end of the limiting slide bar 9 is fixedly connected to one side of the plug 5. One end of the lead screw 10 is rotatably connected to the pushing groove 4, and the other end of the lead screw 10 is rotatably connected to the pushing motor 12 through the through hole of the plug 5. The two sides of the bottom of the push block 11 are slidably connected to the slide bar, and the center of the bottom of the push block 11 is threadedly connected to the lead screw 10.

[0030] A further advantage of the above is that when the worker is loading the PCB board, he only needs to place the PCB board on the surface of the placement table 3, and then the push motor 12 and the lead screw 10 drive the push block 11 to transport the PCB board to the working area of ​​the centering and clamping assembly for centering and clamping, without the need for the worker to manually clamp and align it.

[0031] Furthermore, the centering clamping assembly includes a fixed plate 13 and a partition plate 14. The two sides of the fixed plate 13 are fixedly connected to the housing. A gear 15 is rotatably connected to the center of the fixed plate 13. Multiple slide rails 16 are fixedly connected to both sides of the upper surface of the fixed plate 13. An active rack slider 17 and a driven rack slider 18 are slidably installed in the slide rails 16. A clamping plate 19 is fixedly installed on the top of the active rack slider 17 and the driven rack slider 18. A mounting groove 20 is opened on the upper surface of the active rack slider 17. A clamping plate 19 is fixed in the mounting groove 20. A connecting rod 21 is connected, and the bottom of the connecting rod 21 passes through the active rack slider 17 and the fixed plate 13 and is fixedly connected to a reciprocating slide groove 22. The bottom of the slide rail 16 and the surface of the fixed plate 13 are opened with through holes that match the movement trajectory of the connecting rod 21. The two sides of the partition plate 14 are fixedly connected to the housing. A rotating rod 23 is rotatably connected to the partition plate 14 at the reciprocating slide groove 22. A reciprocating connecting rod 24 is fixedly connected to the top of the rotating rod 23. A bevel tooth 25 is fixedly connected to the bottom of the rotating rod 23. The bevel tooth 25 meshes with the intermittent motor 8.

[0032] The further advantage of the above is that the intermittent motor 8 drives the reciprocating connecting rod 24 to rotate, causing the clamping plate 19 to move from both ends to the center and clamp the PCB board, thus achieving the function of centering and clamping the PCB board. After the vision detector 2 and the worker complete the test, the intermittent motor 8 drives the clamping plate 19 to reset and outputs the PCB board through the conveyor belt 7, which improves the testing efficiency.

[0033] Furthermore, a driven wheel 26 is fixedly connected to one side of the input end of the conveyor belt 7, a drive wheel 27 is fixedly installed in the middle of the shaft of the intermittent motor 8, and a transmission belt 28 is provided between the drive wheel 27 and the driven wheel 26.

[0034] When this utility model is used, the PCB board is placed on the surface of the placement platform 3. The push motor 12 drives the lead screw 10 to rotate, and the lead screw 10 drives the push block 11 to slide along the limit rod in the mounting groove 20. The push block 11 pushes the PCB board to be tested on the surface of the placement platform 3 to the test area. At the same time, the intermittent motor 8 drives the rotating rod 23 through the bevel gear 25 to drive the reciprocating connecting rod 24 to rotate, and drives the driven wheel 26 to rotate through the drive wheel 27 and the transmission belt 28, thereby driving the conveyor belt 7 to run.

[0035] While the reciprocating connecting rod 24 rotates within the reciprocating slide groove 22, it pushes the active rack slider 17 to slide within the slide rail 16. As the active rack slider 17 slides, it drives the gear 15 to rotate. The gear 15 drives the driven rack slider 18 to slide synchronously with the active rack slider 17, thereby causing the clamping plate 19 to move from both ends toward the center and clamp the PCB board. This achieves the functions of centering and clamping the PCB board. At this time, the gap motor stops running, and the visual detector 2 performs defect detection on the PCB board. The worker performs a connectivity test on the PCB board, thus realizing the function of simultaneously performing visual inspection and connectivity test.

[0036] After the test is completed, the intermittent motor 8 drives the reciprocating linkage 24 to continue rotating. The reciprocating linkage 24 drives the active rack slider 17 and the driven rack slider 18 to move in opposite directions, thereby releasing the clamping plate 19 from the PCB board. The PCB board after being released from the clamping is output along the conveyor belt 7, which improves the detection efficiency.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A PCB board inspection station, comprising a housing (1) and a vision detector (2), characterized in that, The input end of the housing (1) is provided with a placement platform (3). The surface of the placement platform (3) is provided with a semi-open push slide (4). A push component is provided in the push slide (4). A plug (5) is fixedly connected to the open side of the push slide (4). A centering clamping component is provided in the housing (1) at the output end of the push component. A mounting frame (6) is provided in the housing (1) at the center of the centering clamping component. A conveyor belt (7) is provided in the housing (1) at the output end of the centering clamping component. An intermittent motor (8) is provided at the bottom of the centering clamping component and the conveyor belt (7). The vision detector (2) is fixedly installed at the bottom of the mounting frame (6).

2. The PCB board inspection station according to claim 1, characterized in that: A through hole is provided at the center of one side of the plug (5).

3. The PCB board inspection station according to claim 1, characterized in that: The pushing assembly includes a limiting slide rod (9), a lead screw (10), and a push block (11). One end of the limiting slide rod (9) is fixedly connected to the pushing groove (4), and the other end of the limiting slide rod (9) is fixedly connected to one side of the plug (5). One end of the lead screw (10) is rotatably connected to the pushing groove (4), and the other end of the lead screw (10) is rotatably connected to the pushing motor (12) through the through hole of the plug (5). The two sides of the bottom of the push block (11) are slidably connected to the slide rod, and the center of the bottom of the push block (11) is threadedly connected to the lead screw (10).

4. A PCB board inspection station according to claim 1, characterized in that: The centering clamping assembly includes a fixed plate (13) and a partition plate (14). The two sides of the fixed plate (13) are fixedly connected to the housing. A gear (15) is rotatably connected to the center of the fixed plate (13). Multiple slide rails (16) are fixedly connected to the two sides of the upper surface of the fixed plate (13). An active rack slider (17) and a driven rack slider (18) are slidably installed in the slide rails (16). A clamping plate (19) is fixedly installed on the top of the active rack slider (17) and the driven rack slider (18).

5. A PCB board inspection station according to claim 4, characterized in that: The upper surface of the active rack slider (17) is provided with an installation groove (20), and a connecting rod (21) is fixedly connected in the installation groove (20). The bottom of the connecting rod (21) passes through the active rack slider (17) and the fixing plate (13) and is fixedly connected to a reciprocating groove (22).

6. A PCB board inspection station according to claim 5, characterized in that: The bottom of the slide rail (16) and the surface of the fixing plate (13) have through holes for the movement trajectory of the matching connecting rod (21).

7. A PCB board inspection station according to claim 6, characterized in that: The two sides of the partition (14) are fixedly connected to the housing. The partition (14) is rotatably connected to the reciprocating slide groove (22) with a rotating rod (23). The top of the rotating rod (23) is fixedly connected to a reciprocating connecting rod (24). The bottom of the rotating rod (23) is fixedly connected to a bevel tooth (25). The bevel tooth (25) meshes with the intermittent motor (8).

8. A PCB board inspection station according to claim 1, characterized in that: A driven wheel (26) is fixedly connected to one side of the input end of the conveyor belt (7), a drive wheel (27) is fixedly installed in the middle of the shaft of the intermittent motor (8), and a transmission belt (28) is provided between the drive wheel (27) and the driven wheel (26).

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