Visual detection device for hole sites of circuit board
By introducing air suction ports, high-definition detectors and lighting lamps into the circuit board hole position visual inspection device, combined with an automated transmission mechanism, the problems of detection accuracy and anti-interference are solved, and efficient and accurate hole position detection is achieved.
Patent Information
- Application Number
- CN202423019613.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing visual inspection device for circuit board hole positions is not precise enough, dust adhesion causes a decrease in detection accuracy, the equipment operation is complex and has weak anti-interference capabilities.
Air suction ports are used to remove dust, high-definition detectors and lighting lamps are used to ensure a clean testing environment. Combined with automatic transmission mechanisms and clamping mechanisms, automatic calibration and testing are achieved.
It improves detection accuracy and positioning accuracy, reduces false detection and missed detection, enhances the equipment's anti-interference ability and ease of operation, and extends the equipment's life.
Smart Images
Figure CN223425931U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of visual detection of circuit board hole positions, in particular to a circuit board hole position visual detection device. Background Art
[0002] In the rapidly developing electronics industry, printed circuit boards (PCBs), as an important component of electronic equipment, have a quality and performance that is directly related to the stability and reliability of the entire product. With the development of multi-layer, high-density PCBs and the increasing demands of customers for electrical characteristics, how to efficiently inspect tiny holes on PCBs to ensure they meet design requirements has become a major challenge facing manufacturers. The increasing complexity and precision of PCBs have placed higher demands on PCB quality inspection.
[0003] The accuracy of some existing visual inspection devices is not high enough. Dust attached to the circuit board may block some holes, causing the visual inspection system to misjudge or miss detection, resulting in errors in hole detection and affecting product quality. Secondly, the operation of some equipment is complicated and requires professional training to use, resulting in high operating costs. In complex working environments, such as strong light, electromagnetic interference, etc., the stability of the visual inspection device is affected, and it is prone to problems such as false detection and missed detection. Utility Model Content
[0004] The utility model provides a circuit board hole position visual inspection device, which solves the problems of the existing circuit board hole position visual inspection device having low precision, reduced detection accuracy due to dust adhering to the circuit board, complex operation of the device and weak anti-interference ability.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A circuit board hole position visual inspection device comprises a base, a fixing frame is provided on the side of the base at one end, and a vertical plate is provided on the side of the base at the other end, the fixing frame is connected to the middle of the vertical plate by a boss, and the boss is provided with a connecting groove, a long wire rod is provided inside the groove, and a slider matching the long wire rod is provided at the bottom of the groove, and a first drive motor is provided above the fixing frame, the first drive motor and the long wire rod are engaged with each other through gears, a horizontal plate is provided below the slider, and a transmission mechanism is provided inside the horizontal plate, a U-shaped plate is provided below the horizontal plate, and a clamping mechanism is provided inside the U-shaped plate, a placement box is provided in the middle of the base, and a detection mechanism is provided inside the placement box, and a two-way conveyor is provided outside the placement box.
[0007] Preferably, the gear includes a driving gear and a driven gear, and the driving gear is installed at the output end of the first drive motor, and the driven gear is installed on the side of the long wire rod, and the driven gear is meshed and connected with the driving gear.
[0008] Preferably, the transmission mechanism includes a second drive motor, a main gear, a slave gear, a short screw rod, and a movable block, and a short screw rod is arranged inside the horizontal plate, a movable block matching the short screw rod is arranged under the horizontal plate, and a second drive motor is installed on the outside of the horizontal plate, a main gear is installed at the output end of the second drive motor, and a slave gear is arranged on the side of the short screw rod, and the main gear is meshed with the slave gear.
[0009] Preferably, the clamping mechanism includes an electric push rod, a splint, and a through hole, and the bottom of the movable block is connected to the U-shaped plate, an electric push rod is provided on the inner side of the top of the U-shaped plate, and a splint is provided below the electric push rod, the bottom of the U-shaped plate and the splint form a clamping structure, and a through hole is provided on the side of the U-shaped plate below the splint.
[0010] Preferably, the detection mechanism includes an air suction port, a light, and a detector, and an air suction port is provided on the inner side of the top of the placement box on one side, and the air suction port is externally connected to a suction fan to absorb dust.
[0011] Preferably, a lighting lamp is provided on the inner side of the top of the placement box on the other side, and a high-definition detector is provided on the bottom and inner sides of both ends of the placement box.
[0012] Preferably, the conveyor includes a support frame, an electric telescopic rod, and a push plate, and a group of conveyors for conveying in the opposite direction are arranged on the outside of the placement box, and a group of electric telescopic rods are arranged on the side of the conveyor on the inner side of the vertical plate, and a push plate is arranged on the top of the electric telescopic rod, the push plate matches the side through hole of the U-shaped plate, and the base and the bottom of the conveyor are both provided with a support frame.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The circuit board hole position visual inspection device is equipped with an air suction port on the inner side of the top of a placement box on one side. The air suction port is connected to a suction fan to absorb dust, and high-definition detectors are installed on the bottom and inner sides of the placement box to ensure recognition accuracy and positioning accuracy, improve data processing speed, avoid dust adhering to the circuit board, which may block part of the hole position and cause misjudgment or missed detection by the visual inspection system, and avoid dust accumulation that may cause wear of internal parts of the equipment, thereby extending the overall service life of the equipment.
[0015] 2. A light is installed on the inside of the top of the placement box to ensure the lighting conditions of the detection environment and reduce the interference of the external environment on the equipment. At the same time, the software algorithm can be optimized to maintain stable performance in complex environments, enhance anti-interference capabilities, and ensure the accuracy of equipment detection.
[0016] 3. The bottom of the U-shaped plate is clamped by the splint, and the second drive motor of the transmission mechanism drives it to move left and right. The long screw rod cooperates with the first drive motor to realize forward and backward movement monitoring. Finally, the bidirectional conveyor is used for sorting. The introduction of automation technology realizes the automatic calibration and automatic alarm functions of the visual inspection device. This can not only improve production efficiency, but also reduce problems such as false detection and missed detection caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the present utility model.
[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention.
[0019] Figure 3 It is an isometric structural diagram of the present invention.
[0020] Figure 4 This is a schematic structural diagram of the clamping mechanism of the present utility model.
[0021] Numbers in the figure: 1. Base; 2. Fixed frame; 3. Vertical plate; 4. Boss; 5. Groove; 6. Long screw; 7. Slider; 8. First drive motor; 9. Horizontal plate; 10. Conveyor; 11. U-shaped plate; 12. Placement box; 13. Driving gear; 14. Driven gear; 15. Second drive motor; 16. Main gear; 17. Slave gear; 18. Short screw; 19. Movable block; 20. Electric push rod; 21. Clamp; 22. Through hole; 23. Suction port; 24. Light; 25. Detector; 26. Support frame; 27. Electric telescopic rod; 28. Push plate. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0023] Reference Figures 1-4The utility model provides a technical solution: a circuit board hole position visual inspection device, comprising a base 1, a fixing frame 2 is provided on the side of the base 1 at one end, and a vertical plate 3 is provided on the side of the base 1 at the other end, the fixing frame 2 is connected to the middle of the vertical plate 3 through a boss 4, and a through groove 5 is provided inside the boss 4, a long wire rod 6 is provided inside the groove 5, and a slider 7 matching the long wire rod 6 is provided at the bottom of the groove 5, and a first drive motor 8 is provided above the fixing frame 2, the first drive motor 8 is connected to the long wire rod 6 through gear meshing, a horizontal plate 9 is provided below the slider 7, and a transmission mechanism is provided inside the horizontal plate 9, a U-shaped plate 11 is provided below the horizontal plate 9, and a U-shaped plate 11 is provided inside Clamping mechanism, a placement box 12 is provided in the middle of the base 1, and a detection mechanism is provided inside the placement box 12, a bidirectional conveyor 10 is provided outside the placement box 12, the conveyor 10 includes a support frame 26, an electric telescopic rod 27, and a push plate 28, and a group of conveyors 10 for conveying in the opposite direction are provided outside the placement box 12, and a group of electric telescopic rods 27 are provided on the side of the conveyors 10 on the inner side of the vertical plate 3, and a push plate 28 is provided on the top of the electric telescopic rod 27, the push plate 28 matches the side through hole 22 of the U-shaped plate 11, and support frames 26 are provided at the bottom of the base 1 and the conveyor 10, so as to realize automatic sorting, reduce problems such as false detection and missed detection caused by human factors, and make operation more convenient.
[0024] Reference Figure 1 The gears include a driving gear 13 and a driven gear 14 , and the driving gear 13 is installed at the output end of the first drive motor 8 , and the driven gear 14 is installed on the side of the filament rod 6 , and the driven gear 14 is meshed with the driving gear 13 .
[0025] Reference Figure 3 , Figure 4 The transmission mechanism includes a second drive motor 15, a main gear 16, a slave gear 17, a short screw rod 18, and a movable block 19. A short screw rod 18 is provided inside the horizontal plate 9, and a movable block 19 matching the short screw rod 18 is provided under the horizontal plate 9. The second drive motor 15 is installed on the outside of the horizontal plate 9, and the main gear 16 is installed at the output end of the second drive motor 15, and a slave gear 17 is provided on the side of the short screw rod 18. The main gear 16 is meshed with the slave gear 17, and automation is introduced to improve detection efficiency.
[0026] Reference Figure 4 The clamping mechanism includes an electric push rod 20, a splint 21, and a through hole 22, and the bottom of the movable block 19 is connected to the U-shaped plate 11. The electric push rod 20 is provided on the inner side of the top of the U-shaped plate 11, and the splint 21 is provided below the electric push rod 20. The bottom of the U-shaped plate 11 and the splint 21 form a clamping structure, and a through hole 22 is provided on the side of the U-shaped plate 11 below the splint 21 to ensure recognition accuracy and positioning accuracy and stability.
[0027] Reference Figure 1, Figure 2 The detection mechanism comprises a suction port 23, a light lamp 24 and a detector 25, one side of the top inner side of the placing box 12 is provided with the suction port 23, the suction port 23 is connected with a suction fan to suck dust, so as to avoid that dust adheres to the circuit board and possibly blocks some hole positions, resulting in that the visual detection system is misjudged or missed detection; the other side of the top inner side of the placing box 12 is provided with the light lamp 24, and the bottom and the inner sides of both ends of the placing box 12 are provided with the high-definition detector 25, so as to ensure the light conditions of the detection environment.
[0028] Specifically, in use, the circuit board hole visual detection device is first placed in a working site, then the circuit board to be detected is placed between the bottom of the U-shaped plate 11 and the clamping plate 21, and the U-shaped plate 11 is clamped by the electric push rod 20 arranged on the top inner side of the U-shaped plate 11.
[0029] When working, the first driving motor 8 arranged above the fixed frame 2 is started, the first driving motor 8 is connected with the long lead screw 6 through gear meshing, the first driving motor 8 drives the long lead screw 6 to realize the movement of the sliding block 7, the lower horizontal plate 9 and the clamping mechanism, and the clamping mechanism moves in the placing box 12, first, the suction port 23 arranged on the top inner side of the one side of the placing box 12 is connected with a suction fan to suck dust, so as to avoid that dust adheres to the circuit board and possibly blocks some hole positions, resulting in that the visual detection system is misjudged or missed detection, then the light lamp 24 arranged on the top inner side of the other side of the placing box 12 is used to ensure the light conditions of the detection environment, and then the high-definition detector 25 arranged on the bottom and the inner sides of both ends of the placing box 12 is used to realize accurate identification and positioning of the hole positions by using the high-resolution detector 25 and image processing technology.
[0030] Finally, if the circuit board is qualified, the movable block 19 matched with the short lead screw 18 is arranged below the horizontal plate 9, the second driving motor 15 drives the movable block 19 to move left and right through the main gear 16 and the driven gear 17, the qualified circuit board moves to the left through the movable block 19 connected with the clamping mechanism, and moves to a suitable position, the push plate 28 pushes the circuit board from the bottom of the U-shaped plate 11 and the clamping plate 21 to the left side of the conveyor 10 through the through hole 22 of the side surface of the U-shaped plate 11, and vice versa, the unqualified circuit board is pushed to the right side of the conveyor 10.
[0031] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A circuit board hole position visual inspection device, comprising a base (1), characterized in that: A fixing frame (2) is provided on the side of the base (1) at one end, and a vertical plate (3) is provided on the side of the base (1) at the other end, the fixing frame (2) is connected to the middle of the vertical plate (3) through a boss (4), and a through groove (5) is provided inside the boss (4), a long screw rod (6) is provided inside the groove (5), and a slider (7) matching the long screw rod (6) is provided at the bottom of the groove (5), and a first drive motor (8) is provided above the fixing frame (2). The first drive motor (8) is connected to the long screw rod (6) through gear meshing. A horizontal plate (9) is provided below the slider (7), and a transmission mechanism is provided inside the horizontal plate (9). A U-shaped plate (11) is provided below the horizontal plate (9), and a clamping mechanism is provided inside the U-shaped plate (11). A placement box (12) is provided in the middle of the base (1), and a detection mechanism is provided inside the placement box (12). A bidirectional conveyor (10) is provided outside the placement box (12).
2. The circuit board hole position visual inspection device according to claim 1, characterized in that: The gears include a driving gear (13) and a driven gear (14), and the output end of the first driving motor (8) is equipped with the driving gear (13), and the side of the filament rod (6) is equipped with the driven gear (14), and the driven gear (14) is meshed and connected with the driving gear (13).
3. The circuit board hole position visual inspection device according to claim 1, characterized in that: The transmission mechanism comprises a second drive motor (15), a main gear (16), a slave gear (17), a short screw rod (18), and a movable block (19), wherein the short screw rod (18) is arranged inside the transverse plate (9), and a movable block (19) matching the short screw rod (18) is arranged below the transverse plate (9), and the second drive motor (15) is installed on the outside of the transverse plate (9), the main gear (16) is installed at the output end of the second drive motor (15), and the slave gear (17) is arranged on the side of the short screw rod (18), and the main gear (16) is meshed with the slave gear (17).
4. The circuit board hole position visual inspection device according to claim 3, characterized in that: The clamping mechanism comprises an electric push rod (20), a clamping plate (21), and a through hole (22), and the bottom of the movable block (19) is connected to the U-shaped plate (11), the electric push rod (20) is arranged on the inner side of the top of the U-shaped plate (11), and the clamping plate (21) is arranged below the electric push rod (20), the bottom of the U-shaped plate (11) and the clamping plate (21) form a clamping structure, and the side of the U-shaped plate (11) is provided with a through hole (22) below the clamping plate (21).
5. The circuit board hole position visual inspection device according to claim 1, characterized in that: The detection mechanism comprises an air suction port (23), a light (24), and a detector (25), and an air suction port (23) is provided on the inner side of the top of the placement box (12) on one side, and the air suction port (23) is externally connected to a suction fan to absorb dust.
6. The circuit board hole position visual inspection device according to claim 5, characterized in that: A lighting lamp (24) is provided on the inner side of the top of the placement box (12) on the other side, and a high-definition detector (25) is provided on the bottom and inner sides of both ends of the placement box (12).
7. The circuit board hole position visual inspection device according to claim 1, characterized in that: The conveyor (10) includes a support frame (26), an electric telescopic rod (27), and a push plate (28), and a group of conveyors (10) for conveying in the opposite direction are arranged on the outside of the placement box (12), and a group of electric telescopic rods (27) are arranged on the side of the conveyor (10) on both sides, which are located on the inside of the vertical plate (3), and a push plate (28) is arranged on the top of the electric telescopic rod (27), and the push plate (28) matches the side through hole (22) of the U-shaped plate (11), and the base (1) and the bottom of the conveyor (10) are both provided with a support frame (26).