Circuit board visual inspection device

Abstract

The utility model belongs to the field of circuit board detection, specifically is a kind of circuit board visual inspection device, including visual inspection machine body;Visual inspection machine body is fixedly connected with rack, and the rack is equipped with conveyor belt, and the inside of visual inspection machine body is equipped with vision sensor, and the vision sensor is located above conveyor belt;The rack, conveyor belt and vision sensor are all provided with two, and the end of two the rack is fixedly connected with tray;The side surface of the rack is equipped with turnover mechanism;The turnover mechanism can grab circuit board and turn over circuit board, then circuit board is placed on another transmission belt, then follow transmission belt and move to tray, then the turnover mechanism grabs circuit board and turns over, then it is placed on another transmission belt, and the back of circuit board is detected by another transmission belt and vision sensor, to complete circuit board automatic double-sided detection, convenient for staff to use.

Description

Technical Field

[0001] This utility model relates to the field of circuit board inspection, specifically a circuit board visual inspection device. Background Technology

[0002] In current technologies, the visual inspection machine for circuit boards mainly consists of a worktable, a conveyor belt, a visual sensor, a supplementary light, and a host computer equipped with a visual inspection algorithm. The conveyor belt transports the circuit boards, and the visual sensor acquires a visual image of the top of the circuit board. The acquired visual image is then transmitted to the host computer, which performs visual inspection on the acquired visual image of the circuit board.

[0003] However, existing vision inspection machines have difficulty inspecting the pins on the back of the circuit board during use, resulting in poor inspection comprehensiveness. Therefore, a circuit board vision inspection device is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a circuit board visual inspection device.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The circuit board visual inspection device of this utility model includes a visual inspection machine body; a frame is fixedly connected to the visual inspection machine body, a conveyor belt is installed on the frame, and a visual sensor is installed inside the visual inspection machine body, the visual sensor being located above the conveyor belt; two frames, two conveyor belts, and two visual sensors are provided, and a support plate is fixedly connected to the ends of the two frames; a flipping mechanism is installed on the side of the frame; the flipping mechanism can grab the circuit board and flip it over, and then place the circuit board on another conveyor belt.

[0006] Preferably, the flipping mechanism includes a bracket, a first motor, a support arm, and two clamps. The bracket is fixed to the side of the visual inspection machine body, the first motor is fixed to the top of the bracket, and a rotating shaft is fixed to the output end of the first motor. The rotating shaft is rotatably connected to the bracket, and the rotating shaft is fixed to the middle of the support arm. The two clamps are installed at both ends of the support arm at positions corresponding to the conveyor belt.

[0007] Preferably, the clamp includes a second motor, a gear, two racks, and two seats; the second motor is fixedly connected to the support arm, the gear is fixedly connected to the output end of the second motor, the two seats are slidably connected to the support arm, the two racks are respectively fixedly connected to the two seats, the racks and the gear mesh with each other, and a clamping plate is fixedly connected to the seat.

[0008] Preferably, the base is provided with a sliding groove, and a slide rail is fixedly connected to the support arm at a position corresponding to the sliding groove, and the slide rail and the sliding groove are slidably connected.

[0009] Preferably, a support frame is fixedly connected to the side of the visual inspection machine body, and the support frame is rotatably connected to the end of the rotating shaft away from the first motor.

[0010] Preferably, a rubber pad is fixedly attached to the clamp.

[0011] The advantages of this utility model are: 1. This utility model, by setting up two frames, conveyor belts, vision sensors, and a flipping mechanism, relies on two conveyor belts, each with a vision sensor installed above it. The two conveyor belts run in opposite directions. The circuit board is first placed on one conveyor belt, and then the vision sensor above it acquires a visual image of the circuit board and transmits it to the host for inspection. Afterward, it moves along the conveyor belt to a tray, where the flipping mechanism grabs the circuit board, flips it over, and places it on the other conveyor belt. The other conveyor belt and the vision sensor then inspect the back of the circuit board, thus completing the automatic double-sided inspection of the circuit board, which is convenient for operators to use. 2. This utility model comprises a bracket, a first motor, a support arm, a second motor, a gear, a rack, a base, and a clamping plate. In use, the first motor is mounted on the bracket, which drives the rotating shaft and the support arm to rotate, thereby moving the clamping plate to transport the circuit board to another pallet and conveyor belt. When fixing, the second motor drives the gear to rotate, and two racks mesh on the gear. The two racks drive two bases to move, and the movement of the bases causes the clamping plate to move and clamp the circuit board. Both the first motor and the second motor are servo motors. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the conveyor belt structure of this utility model; Figure 3 This is a schematic diagram of the support arm structure of this utility model; Figure 4 This is a schematic diagram of the base structure of this utility model; Figure 5This is a schematic diagram of the structure of the clamping plate of this utility model.

[0014] In the diagram: 11. Visual inspection machine body; 12. Frame; 13. Conveyor belt; 14. Visual sensor; 15. Pallet; 21. Support; 22. First motor; 23. Support arm; 31. Second motor; 32. Gear; 33. Rack; 34. Seat; 35. Clamping plate; 41. Slide rail; 42. Slide groove; 5. Support frame; 6. Rubber pad. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0016] Specific implementation examples are given below.

[0017] Please see Figure 1-5 As shown, a circuit board visual inspection device includes a visual inspection machine body 11; a frame 12 is fixedly connected to the visual inspection machine body 11, a conveyor belt 13 is installed on the frame 12, and a visual sensor 14 is installed inside the visual inspection machine body 11, the visual sensor 14 being located above the conveyor belt 13; two frames 12, two conveyor belts 13, and two visual sensors 14 are provided, and a support plate 15 is fixedly connected to the ends of the two frames 12; a flipping mechanism is installed on the side of the frame 12; the flipping mechanism can grasp the circuit board and flip it over, and then place the circuit board on another conveyor belt; In use, two conveyor belts 13 are set up, and a vision sensor 14 is installed above each conveyor belt 13. The two conveyor belts run in opposite directions. The circuit board is first placed on one conveyor belt 13, and then the vision sensor 14 above it acquires a visual image of the circuit board and transmits it to the host for inspection. After that, it moves with the conveyor belt to the tray 15, and then the flipping mechanism grabs the circuit board and flips it over. Then it is placed on the other conveyor belt, and the other conveyor belt and the vision sensor 14 are used to inspect the back of the circuit board. This completes the automatic double-sided inspection of the circuit board, which is convenient for operators to use.

[0018] Furthermore, such as Figure 1-5As shown, the flipping mechanism includes a bracket 21, a first motor 22, a support arm 23, and two clamps. The bracket 21 is fixed to the side of the visual inspection machine body 11. The first motor 22 is fixed to the top of the bracket 21. A rotating shaft is fixed to the output end of the first motor 22. The rotating shaft is rotatably connected to the bracket 21. The rotating shaft is fixed to the middle of the support arm 23. The two clamps are installed at both ends of the support arm 23 at positions corresponding to the conveyor belt 13. The clamps include a second motor 31, a gear 32, two racks 33, and two seats 34. The second motor 31 is fixed to the support arm 23. The gear 32 is fixed to the output end of the second motor 31. The two seats 34 are slidably connected to the support arm 23. The two racks 33 are respectively fixed to the two seats 34. The racks 33 and the gear 32 mesh with each other. A clamping plate 35 is fixed to the seat 34. In use, a first motor 22 is installed on the bracket 21. The first motor 22 drives the rotating shaft and the support arm 23 to rotate, thereby driving the clamping plate 35 to move, so that the circuit board is transported to another pallet 15 and the conveyor belt 13. When fixing, the second motor 31 drives the gear 32 to rotate. Two racks 33 mesh on the gear 32. The two racks 33 drive the two seats 34 to move. The movement of the seats 34 drives the clamping plate 35 to move and clamp the circuit board. Both the first motor 22 and the second motor 31 are servo motors.

[0019] Furthermore, such as Figure 1-5 As shown, a sliding groove 42 is provided on the seat 34, and a slide rail 41 is fixedly connected to the support arm 23 at a position corresponding to the sliding groove 42. The slide rail 41 and the sliding groove 42 are slidably connected. A support frame 5 is fixedly connected to the side of the visual inspection machine body 11. The support frame 5 is rotatably connected to the end of the rotating shaft away from the first motor 22. A rubber pad 6 is fixedly connected to the clamping plate 35. In use, the base 34 is provided with a groove 42, and the support arm 23 is fixed with a slide rail 41 connected to the groove 42. This guides the movement of the base 34 and improves stability. The support frame 5 is installed at the other end of the shaft to improve the stability of the shaft support. The rubber pad 6 is provided to protect the circuit board.

[0020] Furthermore, such as Figure 1-5 As shown, the flipping mechanism is a multi-axis robotic arm. In this embodiment, the multi-axis robotic arm is used to grab a circuit board on one conveyor belt 13 and flip the circuit board to place it on another conveyor belt 13.

[0021] Working principle: In use, two conveyor belts 13 are set up, and a vision sensor 14 is installed above each conveyor belt 13. The two conveyor belts run in opposite directions. The circuit board is first placed on one conveyor belt 13, and then the vision sensor 14 above it acquires a visual image of the circuit board and transmits it to the host for inspection. After that, it moves with the conveyor belt to the tray 15, and then the flipping mechanism grabs the circuit board and flips it over, and then places it on the other conveyor belt. The other conveyor belt and the vision sensor 14 are used to inspect the back of the circuit board, thus completing the automatic double-sided inspection of the circuit board, which is convenient for operators to use. In use, a first motor 22 is installed on the bracket 21. The first motor 22 drives the rotating shaft and the support arm 23 to rotate, thereby driving the clamp. The plate 35 moves to transport the circuit board onto another pallet 15 and the conveyor belt 13. When fixed, the second motor 31 drives the gear 32 to rotate. Two racks 33 mesh on the gear 32. The two racks 33 drive the two seats 34 to move. The movement of the seats 34 drives the clamping plate 35 to move and clamp the circuit board. The first motor 22 and the second motor 31 are both servo motors. In use, the slide groove 42 is opened on the seat 34, and the slide rail 41 connected to the slide groove 42 is fixed on the support arm 23. This guides the movement of the seat 34 and improves stability. The support frame 5 is installed at the other end of the rotating shaft to improve the stability of the rotating shaft support. The rubber pad 6 is set to protect the circuit board.

[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A circuit board visual inspection device, comprising a visual inspection machine body (11); a frame (12) is fixedly connected to the visual inspection machine body (11), a conveyor belt (13) is installed on the frame (12), and a visual sensor (14) is installed inside the visual inspection machine body (11), the visual sensor (14) being located above the conveyor belt (13); characterized in that: Two of each of the frame (12), conveyor belt (13) and vision sensor (14) are provided, and a support plate (15) is fixed to the end of each of the two frames (12). The side of the frame (12) is equipped with a flipping mechanism; the flipping mechanism can grab the circuit board and flip it over, and then place the circuit board on another conveyor belt.

2. The circuit board visual inspection device according to claim 1, characterized in that: The flipping mechanism includes a bracket (21), a first motor (22), a support arm (23), and two clamps. The bracket (21) is fixed to the side of the visual inspection machine body (11). The first motor (22) is fixed to the top of the bracket (21). A rotating shaft is fixed to the output end of the first motor (22). The rotating shaft is rotatably connected to the bracket (21). The rotating shaft is fixed to the middle of the support arm (23). The two clamps are installed at the two ends of the support arm (23) at positions corresponding to the conveyor belt (13).

3. The circuit board visual inspection device according to claim 2, characterized in that: The clamp includes a second motor (31), a gear (32), two racks (33) and two seats (34); the second motor (31) is fixed to the support arm (23), the gear (32) is fixed to the output end of the second motor (31), the two seats (34) are slidably connected to the support arm (23), the two racks (33) are respectively fixed to the two seats (34), the racks (33) and the gear (32) mesh with each other, and a clamping plate (35) is fixed on the seat (34).

4. The circuit board visual inspection device according to claim 3, characterized in that: The seat (34) is provided with a sliding groove (42), and a slide rail (41) is fixedly connected to the support arm (23) at the position corresponding to the sliding groove (42). The slide rail (41) and the sliding groove (42) are slidably connected.

5. The circuit board visual inspection device according to claim 4, characterized in that: A support frame (5) is fixedly connected to the side of the main body (11) of the vision inspection machine, and the support frame (5) is rotatably connected to the end of the rotating shaft away from the first motor (22).

6. The circuit board visual inspection device according to claim 5, characterized in that: A rubber pad (6) is fixed to the clamp (35).

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