Circuit board defect detection device

Abstract

The utility model relates to the related technical field of circuit board detection, and discloses a circuit board defect detection device, which comprises a workbench; the detection mechanism is arranged above the workbench; the clamping device is configured below the detection mechanism; the adjusting devices are arranged on the two sides of the clamping device; the clamping device further comprises a supporting plate arranged on the upper surface of the workbench; the motor is fixedly arranged on the outer side of the supporting plate; the rotating shaft is arranged on an output shaft of the motor and is arranged between the two supporting plates; the clamping mechanism is arranged on the rotating shaft, an opening used in cooperation with the clamping mechanism is formed in the middle of the rotating shaft, and an installation opening matched with the opening in shape is formed in a fixing plate of the clamping device. The circuit board defect detection device provided by the utility model solves the problems that the existing equipment cannot be used for well carrying out fixed detection on circuit boards with different sizes and also cannot be used for carrying out overturning detection on the circuit boards, so that the applicability is poor.

Description

Technical Field

[0001] The utility model belongs to the technical field related to circuit board detection, and in particular relates to a circuit board defect detection device. Background Art

[0002] Due to the manufacturing process, defects such as short circuit, copper protrusion, open circuit, etc. are inevitable in the production process of circuit boards. These defects can be repaired by laser cutters, repair welding machines and other equipment. Therefore, it is necessary to accurately find the defect points on the circuit board during the production process. At present, the market generally uses circuit board defect detection devices to inspect the appearance of the circuit board, find and mark the position coordinates of the defect points. However, the existing circuit board defect detection devices all place the circuit board on the top of the conveyor belt for transmission, and then pass through the detection mechanism for detection. Since the circuit board is not limited, the circuit board may be offset during the detection process, thereby affecting the detection quality of the device for the circuit board.

[0003] The Chinese utility model patent with publication number CN212150377U discloses a circuit board defect detection device. By setting a first support block, a second support block, a first support plate, a second support plate and a positioning assembly, when in use, the user can pull the pull rod, and the abutment plate on one side of the slider can be driven to move under the driving action of the pull rod, and then the circuit board is placed on the top of the first support plate and the second support plate, and the pull rod is released, so that the abutment plate can be reset under the rebound action of the compression spring, and then the circuit board is fixed under the action of the first support block and the abutment plate, thereby ensuring the stability of the circuit board during the movement, and making the device more stable when detecting the circuit board, thereby ensuring the detection result of the device for the circuit board. However, the device still has some other problems. For example, the device cannot perform fixed detection on circuit boards of different sizes well, and cannot perform flip detection on circuit boards, and has poor applicability. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit board defect detection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the following technical solution is provided: a circuit board defect detection device, comprising:

[0006] Workbench;

[0007] A detection mechanism is arranged above the workbench;

[0008] A clamping device, arranged below the detection mechanism;

[0009] An adjusting device, arranged on both sides of the clamping device;

[0010] Wherein, the clamping device further comprises:

[0011] A support plate, arranged on the upper surface of the workbench;

[0012] A motor, fixedly arranged on the outer side of the support plate;

[0013] A rotating shaft, configured on the output shaft of the motor and disposed between the two support plates;

[0014] The clamping mechanism is arranged on the rotating shaft, an opening for use with the clamping mechanism is provided in the middle of the rotating shaft, and a mounting opening matching the shape of the opening is provided on the fixing plate of the clamping device.

[0015] In the above technical solution, further, the clamping mechanism includes:

[0016] The fixing openings are provided on both sides of the fixing plate, and the fixing openings on both sides are not connected;

[0017] A spring is disposed on the upper and lower surfaces inside the fixing port;

[0018] A clamping plate, disposed at the other end of the spring;

[0019] The sponge pad is arranged on the other side of the clamping plate.

[0020] In any of the above technical solutions, further, the adjustment device includes:

[0021] A crossbar is arranged on the upper surface of the workbench, and a through hole is opened on the crossbar to penetrate in the front-to-back direction;

[0022] A cylinder is disposed inside the through port, and an output shaft of the cylinder penetrates through the cross bar and is disposed upward;

[0023] The adjusting plate is arranged on the output shaft of the cylinder.

[0024] In any of the above technical solutions, further, the detection mechanism includes:

[0025] A support frame, arranged on the outer side of the support plate;

[0026] A detection plate is arranged above the support frame, and a visual camera is arranged on the surface of the detection plate on a side close to the clamping device;

[0027] The lighting lamp is arranged on the inner side of the supporting frame.

[0028] In any of the above technical solutions, further, fixing holes are opened at corresponding positions of the clamping plate and the fixing plate, and the fixing holes are fixed by fixing bolts.

[0029] In any of the above technical solutions, further, the opening is configured to be rectangular, and the mounting opening is consistent with the rectangle of the opening.

[0030] In any of the above technical solutions, further, a nylon gasket is provided between the clamping plate and the sponge pad.

[0031] The beneficial effects of the utility model are:

[0032] 1. Support plates are arranged on the left and right sides of the upper surface of the workbench, a motor is fixedly arranged on the outer side of one of the support plates, the output shaft of the motor passes through the support plate and is fixedly connected to the rotating shaft, an opening is opened in the center of the rotating shaft, and the opening is arranged in a rectangular shape, so that the fixed plate of the clamping mechanism is fixed on the rotating shaft through a mounting opening that matches the rectangular shape of the opening, so that when the motor starts to drive the rotating shaft to rotate, it can drive the clamping mechanism to rotate, because the circuit board is fixed in the fixed opening of the clamping mechanism, the rotation of the clamping mechanism can drive the circuit board to flip over the front and back sides, so that it can detect whether the circuit board has defects from all directions, saving the time of manual flipping.

[0033] 2. By arranging adjustment devices on both sides of the clamping device, when the clamping mechanism fixes one side of the circuit board, the cylinder of the adjustment device changes the height of the adjustment plate so that the adjustment plate can just touch the other side of the circuit board. In this way, the left and right sides of the circuit board can be fixed, so that the circuit board to be tested can have good stability. At the same time, when the clamping mechanism flips over the adjustment plate that can change the height, the adjustment plate will not block the flipping of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the utility model;

[0035] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0036] Figure 3 It is a cross-sectional schematic diagram of the structure of the utility model from another angle;

[0037] Explanation of the reference numerals: 100, workbench; 200, detection mechanism; 210, support frame; 220, detection plate; 300, clamping device; 310, support plate; 320, motor; 330, rotating shaft; 331, opening; 340, clamping mechanism; 341, fixing plate; 342, mounting opening; 343, fixing opening; 344, spring; 345, clamping plate; 346, sponge pad; 347, fixing hole; 348, fixing bolt; 400, adjusting device; 410, cross bar; 420, through opening; 430, cylinder; 440, adjusting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] Embodiment 1:

[0041] like Figure 1-Figure 3 As shown, this embodiment provides a circuit board defect detection device, including:

[0042] Workbench 100;

[0043] The detection mechanism 200 is disposed above the workbench 100;

[0044] The clamping device 300 is disposed below the detection mechanism 200;

[0045] The adjusting device 400 is disposed on both sides of the clamping device 300;

[0046] The clamping device 300 further comprises:

[0047] A support plate 310 is disposed on the upper surface of the workbench 100;

[0048] The motor 320 is fixedly disposed on the outer side of the support plate 310;

[0049] The rotating shaft 330 is configured on the output shaft of the motor 320 and is disposed between the two supporting plates 310;

[0050] The clamping mechanism 340 is disposed on the rotating shaft 330 . An opening 331 for cooperating with the clamping mechanism 340 is provided in the middle of the rotating shaft 330 . An installation opening 342 matching the shape of the opening 331 is provided on the fixing plate 341 of the clamping device 300 .

[0051] In the present technical solution, in order to enable the same device to detect the two surfaces of the circuit board, a clamping device 300 is provided on the workbench 100, and the support plates 310 of the clamping device 300 are installed on the left and right sides of the workbench 100, and a motor 320 is fixed to the outer side of one of the support plates 310, and the output shaft of the motor 320 passes through the support plate 310 and is fixedly connected to the rotating shaft 330, and an opening 331 is provided in the middle of the rotating shaft 330, and a through installation opening 342 is provided on the fixed plate 341 of the clamping mechanism 340, and the installation opening 342 is connected with the rotating shaft 330 with the opening 331, and the clamping mechanism 340 can The detection mechanism 200 is provided above the clamping device 300, so that the detection mechanism 200 can detect whether the surface of the circuit board facing upward contains defects. The adjusting device 400 is arranged on the front and rear sides of the clamping device 300, so that when the clamping device 300 fixes the circuit board, the adjusting device 400 can fix the circuit board, thereby improving the stability of the circuit board fixation. When the rotating shaft 330 drives the rotation of the clamping mechanism 340, the upward detected surface of the circuit board can be changed, so that a device can detect whether there are defects on both surfaces of the circuit board without human intervention.

[0052] Embodiment 2:

[0053] This embodiment provides a circuit board defect detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] like Figure 1-Figure 3 As shown, in this embodiment, the clamping mechanism 340 includes:

[0055] The fixing openings 343 are opened on both sides of the fixing plate 341, and the fixing openings 343 on both sides are not connected;

[0056] Spring 344, disposed on the upper and lower surfaces inside the fixing opening 343;

[0057] A clamping plate 345 is disposed at the other end of the spring 344;

[0058] The sponge pad 346 is disposed on the other side of the clamping plate 345 .

[0059] In the present technical scheme, in order to fix the circuit board, fixing openings 343 are opened on the front and rear sides of the fixing plate 341 of the clamping mechanism 340, and the two fixing openings 343 are not connected, so that two circuit boards can be fixed at the same time, which can improve efficiency. The upper and lower internal surfaces of the fixing openings 343 are fixedly connected with one end of a spring 344, and the other end of the spring 344 is fixedly connected with a clamping plate 345. Because springs 344 are arranged on the upper and lower sides of a fixing opening 343, there are two clamping plates 345. A sponge pad 346 is fixedly connected to the side where the two clamping plates 345 are close to each other, and the circuit board is fixed in the middle of the sponge pad 346. The sponge pad 346 can protect the PCB of the circuit board from damage. The circuit board can be fixed by squeezing the clamping plate 345 and the sponge pad 346 by multiple upper and lower springs 344.

[0060] Embodiment 3:

[0061] This embodiment provides a circuit board defect detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0062] like Figure 1-Figure 3 As shown, in this embodiment, the adjustment device 400 includes:

[0063] The cross bar 410 is disposed on the upper surface of the workbench 100, and a through hole 420 is formed on the cross bar 410 and passes through in the front-to-back direction;

[0064] The cylinder 430 is disposed inside the through opening 420, and the output shaft of the cylinder 430 penetrates the cross bar 410 and is disposed upward;

[0065] The adjustment plate 440 is disposed on the output shaft of the cylinder 430 .

[0066] In the present technical solution, in order to ensure good stability of the circuit board after being fixed on one side by the clamping mechanism 340, an adjustment device 400 is provided. The cross bar 410 of the adjustment device 400 is fixed on the upper surface of the workbench 100 and the front and rear sides of the clamping device 300. A through hole 420 is provided in the middle of the cross bar 410 in the front and rear directions. A plurality of cylinders 430 are fixedly provided inside the through hole 420. The cylinders 430 are vertically provided and the output shafts of the cylinders 430 vertically penetrate the cross bar 410. An adjustment plate 440 is fixedly provided on the output shaft of the cylinders 430. When the cylinders 430 are adjusted When the position of plate 440 is adjusted to just contact the lower surface of the circuit board fixed by the clamping mechanism 340, the operation of cylinder 430 is stopped, so that the circuit board can be fixed in multiple directions and the circuit board can have good stability. At the same time, in order to be able to quickly stop the cylinder 430 after the adjustment plate 440 contacts the circuit board, a contact switch can be provided above the adjustment plate 440, and this contact quick-close can be embedded in the interior of the adjustment plate 440, so that the contact switch and the upper surface of the adjustment plate 440 can contact the circuit board at the same time and quickly shut down the operation of the cylinder 430.

[0067] Embodiment 4:

[0068] This embodiment provides a circuit board defect detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] like Figure 1-Figure 3 As shown, in this embodiment, the detection mechanism 200 includes:

[0070] The support frame 210 is disposed on the outer side of the support plate 310;

[0071] The detection plate 220 is disposed above the support frame 210, and a visual camera is provided on the surface of the detection plate 220 on a side close to the clamping device 300;

[0072] The lighting lamp is disposed on the inner side of the support frame 210 .

[0073] In the present technical solution, in order to facilitate the detection of whether the circuit board has defects, support frames 210 are fixedly arranged on the left and right sides of the clamping device 300, and a detection plate 220 is fixed in the middle of the two support frames 210. A plurality of visual cameras are arranged on the side of the detection plate 220 facing the clamping device 300 so as to detect defects on the detection surface of the circuit board in a timely manner. To this end, the device can adapt to dark environments and various environments with poor light sources. For this purpose, lighting lamps are arranged inside the two support frames 210 so that the condition of the circuit board to be detected can be fully captured by the visual camera.

[0074] Embodiment 5:

[0075] This embodiment provides a circuit board defect detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0076] like Figure 1-Figure 3 As shown, in this embodiment, fixing holes 347 are opened at corresponding positions of the clamping plate 345 and the fixing plate 341 , and the fixing holes 347 are fixed by fixing bolts 348 .

[0077] In the present technical solution, in order to ensure that the circuit board can be stably fixed in the fixing opening 343 when being flipped, fixing holes 347 are opened at corresponding positions of the clamping plate 345 and the fixing plate 341. By using the fixing bolts 348 in conjunction with the fixing holes 347, the circuit board can be stably fixed between the upper and lower clamping plates 345, thereby facilitating the stable flipping of the circuit board.

[0078] Embodiment 6:

[0079] This embodiment provides a circuit board defect detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] like Figure 2 and Figure 3 As shown, in this embodiment, the opening 331 is configured to be rectangular, and the installation opening 342 is consistent with the rectangle of the opening 331 .

[0081] In the present technical solution, in order to prevent slippage between the fixed plate 341 and the rotating shaft 330 when the rotating shaft 330 rotates, the opening 331 on the rotating shaft 330 is set to a rectangle, and the shape of the mounting opening 342 is also set to a rectangle that matches the opening 331. In this way, the mounting opening 342 of the fixed plate 341 can match the remaining shape of the rotating shaft 330, ensuring that when the rotating shaft 330 rotates, the fixed plate 341 also rotates with the rotating shaft 330.

[0082] Embodiment 7:

[0083] This embodiment provides a circuit board defect detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0084] like Figure 2 and Figure 3 As shown, in this embodiment, a nylon gasket is further provided between the clamping plate 345 and the sponge pad 346 .

[0085] In the present technical solution, in order to prevent the fixing bolt 348 from directly contacting the circuit board after squeezing the sponge pad 346 when reinforcing the circuit board, a layer of nylon gasket is arranged between the clamping plate 345 and the sponge pad 346. In this way, when the fixing bolt 348 and the fixing hole 347 on the clamping plate 345 are turned, it can be ensured that the fixing bolt 348 will not break through the sponge pad 346 and thus cause damage to the circuit board.

[0086] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A circuit board defect detection device, characterized in that: include: Workbench(100); A detection mechanism (200) is arranged above the workbench (100); A clamping device (300) is arranged below the detection mechanism (200); An adjusting device (400) is arranged on both sides of the clamping device (300); Wherein, the clamping device (300) further comprises: A support plate (310) is disposed on the upper surface of the workbench (100); A motor (320) is fixedly arranged on the outer side of the support plate (310); A rotating shaft (330) is arranged on the output shaft of the motor (320) and is disposed between the two support plates (310); The clamping mechanism (340) is arranged on the rotating shaft (330), an opening (331) for use with the clamping mechanism (340) is provided in the middle of the rotating shaft (330), and a mounting opening (342) matching the shape of the opening (331) is provided on the fixing plate (341) of the clamping device (300).

2. The circuit board defect detection device according to claim 1, characterized in that: The clamping mechanism (340) comprises: The fixing openings (343) are opened on two sides of the fixing plate (341), and the fixing openings (343) on the two sides are not connected; A spring (344) is disposed on the upper and lower surfaces inside the fixing opening (343); A clamping plate (345) is disposed at the other end of the spring (344); The sponge pad (346) is disposed on the other side of the clamping plate (345).

3. The circuit board defect detection device according to claim 2, characterized in that: The adjustment device (400) comprises: A cross bar (410) is disposed on the upper surface of the workbench (100), and a through hole (420) is formed on the cross bar (410) and passes through in the front-to-back direction; A cylinder (430) is disposed inside the through port (420), and an output shaft of the cylinder (430) penetrates through the cross bar (410) and is disposed upward; The adjustment plate (440) is arranged on the output shaft of the cylinder (430).

4. The circuit board defect detection device according to claim 1, characterized in that: The detection mechanism (200) comprises: A support frame (210) is arranged on the outer side of the support plate (310); A detection plate (220) is arranged above the support frame (210), and a visual camera is provided on the surface of the detection plate (220) on a side close to the clamping device (300); The lighting lamp is arranged on the inner side of the support frame (210).

5. The circuit board defect detection device according to claim 2, characterized in that: The clamping plate (345) and the fixing plate (341) are provided with fixing holes (347) at positions corresponding to each other, and the fixing holes (347) are fixed by fixing bolts (348).

6. The circuit board defect detection device according to claim 1, characterized in that: The opening (331) is configured to be rectangular, and the installation opening (342) matches the rectangle of the opening (331).

7. The circuit board defect detection device according to claim 2, characterized in that: A nylon gasket is also provided between the clamping plate (345) and the sponge pad (346).

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