Circuit board surface defect detection device

Abstract

The utility model relates to the technical field of detection devices, and discloses a circuit board surface defect detection device, which comprises a lower conveying frame and an upper conveying frame, the upper conveying frame is fixed on the top surface of the lower conveying frame, conveying belts are arranged in the lower conveying frame and the upper conveying frame, and driving rollers are sleeved in two ends of each conveying belt. The upper conveying frame and the lower conveying frame are arranged on the side edge of the upper conveying frame, supporting frames are fixed to the top face of the upper conveying frame and the top face, on the side edge of the upper conveying frame, of the lower conveying frame, and industrial cameras are arranged in the middles of the bottom faces of the supporting frames. According to the circuit board surface defect detection device, the circuit board is moved to the lower conveying frame and is overturned, so that the two surfaces of the circuit board can be detected, the problem that the circuit board is inconvenient to turn over and feed and discharge when an existing circuit board surface defect detection device is used is solved, the convenience during detection is greatly improved, and meanwhile, the detection completeness is also ensured.

Description

Technical Field

[0001] The utility model application relates to the technical field of detection devices, specifically a circuit board surface defect detection device. Background Art

[0002] A circuit board is a basic electronic device used to build and arrange circuit components with circuit diagrams. It connects electronic components together according to circuit principles through pre-designed conductive paths, thereby realizing the functions of electronic equipment. The circuit board carries electronic components and realizes electrical connections between them through components such as insulating board substrates, conductive patterns and pads. Its main functions include connection, support, signal transmission and heat dissipation.

[0003] When using the above technology, it was found that the following technical problems exist in the existing technology: Since the circuit of the circuit board is generally arranged on the surface of the board, in order to ensure the integrity of the circuit, the surface of the circuit board will be inspected for defects and the circuit boards with defects will be picked out. When the traditional inspection device inspects the circuit board, after the appearance inspection on one side is completed, the circuit board needs to be turned over before the other side is inspected. The loading and unloading of materials is also relatively inconvenient, resulting in a relatively cumbersome and inconvenient inspection operation. For this reason, we designed a circuit board surface defect detection device to provide another technical solution to the above technical problems. Utility Model Content

[0004] In order to solve the problem that the existing circuit board surface defect detection device is inconvenient to turn over the circuit board and load and unload the material during use, the utility model provides a circuit board surface defect detection device to solve the above problem.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0007] As a preferred embodiment of the circuit board surface defect detection device provided by the present invention, the length of the conveyor belt in the lower conveyor frame is greater than the length of the conveyor belt in the upper conveyor frame, and a guide rod is fixed to the top surface of the lower conveyor frame on the side of the unloading end of the conveyor belt.

[0008] Furthermore, the two support frames are both configured as an inverted U-shape that cooperates with the lower conveying frame and the upper conveying frame, and the thickness from the top surface of the conveyor belt to the top surface of the lower conveying frame or the upper conveying frame is greater than the thickness of the circuit board.

[0009] As a preferred embodiment of the circuit board surface defect detection device provided by the present invention, a guide plate is provided on the top surface of the conveyor belt outside the guide rod, and a support rod is rotatably sleeved on the bottom of the guide plate, and both ends of the support rod are fixed on the inner wall of the lower conveyor frame, a fixed plate is fixed on the inner wall of the lower conveyor frame below the guide plate, and a number of springs are fixed at equal distances between the top surface of the fixed plate and the bottom surface of the guide plate.

[0010] As a preferred embodiment of the circuit board surface defect detection device provided by the present invention, a buffer assembly is arranged inside the conveyor belt between the guide rod and the guide plate, the guide plate is arranged to be inclined downward toward the guide rod side, and both ends of the guide plate are arranged to be arc-shaped.

[0011] As a preferred embodiment of the circuit board surface defect detection device provided by the utility model, the buffer assembly includes a support plate, a supporting plate and two springs. A support plate is arranged inside the conveyor belt between the guide rod and the guide plate, and the front and rear ends of the support plate are fixed on the inner wall of the lower conveying frame. A supporting plate is slidingly arranged inside the lower conveying frame above the support plate, and a plurality of limiting slide bars are fixed on the bottom surface of the support plate. Each of the limiting slide bars is slidably inserted inside the support plate, and two springs are sleeved on each limiting slide bar on the bottom surface of the support plate, and both ends of the two springs are respectively fixed on the support plate and the limiting slide bar.

[0012] As a preferred embodiment of the circuit board surface defect detection device provided by the utility model, a buffer pad is glued and fixed to the top surface of the support plate, and a slider that cooperates with the limiting slide rod is provided inside the support plate, and each of the limiting slide rods is configured as an inverted T-shape.

[0013] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0014] 1. Through the upper and lower conveyor flip structure combined with the industrial camera, after the inspection of one side of the circuit board is completed, the circuit board is moved to the lower conveyor rack under the drive of the upper conveyor rack and completed. The circuit board can be inspected on both sides. This solves the problem of the existing circuit board surface defect inspection device that the circuit board is inconvenient to flip over and load and unload during use, greatly improving the convenience of inspection while also ensuring the completeness of the inspection.

[0015] 2. Through the buffer assembly at the bottom, when the circuit board is flipped, the guide plate is used to guide the circuit board in advance, and the spring 1 is used for preliminary buffering. When the two ends of the circuit board fall on the conveyor belt of the lower conveyor rack in turn, the support plate, buffer pad and spring 2 at the bottom cooperate to further protect the circuit board and avoid damage to the circuit board during the inspection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a front view schematic diagram of the utility model;

[0018] Figure 2 This is a schematic back view of the structure of the present utility model;

[0019] Figure 3 It is a front cross-sectional schematic diagram of the present utility model;

[0020] Figure 4 This is a schematic diagram of the support plate structure of the present utility model.

[0021] The meanings of the reference numerals in the figure are: 1. Lower conveyor frame; 2. Upper conveyor frame; 3. Conveyor belt; 4. Drive roller; 5. Support frame; 6. Industrial camera; 7. Gear; 8. Rotating rod; 9. Belt; 10. Drive motor; 11. Guide rod; 12. Guide plate; 13. Fixed plate; 14. Spring 1; 15. Support rod; 16. Support plate; 17. Support plate; 18. Buffer rubber pad; 19. Limit slide bar; 20. Spring 2. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. Example

[0026] Reference Figure 1 、 Figure 2 and Figure 3 , a circuit board surface defect detection device includes a lower conveyor frame 1 and an upper conveyor frame 2, the upper conveyor frame 2 is fixed on the top surface of the lower conveyor frame 1, a conveyor belt 3 is provided inside the lower conveyor frame 1 and the upper conveyor frame 2, and transmission rollers 4 are sleeved inside the two ends of the conveyor belt 3, the top surface of the upper conveyor frame 2 and the top surface of the lower conveyor frame 1 on the side of the upper conveyor frame 2 are fixed with a support frame 5, and an industrial camera 6 is provided in the middle of the bottom surface of the support frame 5, a driving motor 10 is provided at one end of the rear side of the upper conveyor frame 2, and the transmission roller 4 at one end extends to the outside of the upper conveyor frame 2 and is fixed on the output end of the driving motor 10, the transmission roller 4 in the lower conveyor frame 1 extends to the outside of the rear side of the lower conveyor frame 1 and is fixed with a gear 7, and the side of the gear 7 is meshed with another gear 7, the other gear 7 is fixedly sleeved on the rotating rod 8, and the rotating rod 8 is rotatably connected to the rear side of the lower conveyor frame 1 through a bearing seat, and a transmission wheel is fixed on the output end of the driving motor 10 and the outer surface of the rotating rod 8, and the two transmission wheels are connected by a belt 9 for transmission;

[0027] Specifically, the length of the conveyor belt 3 in the lower conveyor frame 1 is greater than the length of the conveyor belt 3 in the upper conveyor frame 2. A guide rod 11 is fixed to the top surface of the lower conveyor frame 1 on the side of the unloading end of the conveyor belt 3. The two support frames 5 are both set to an inverted U-shape that cooperates with the lower conveyor frame 1 and the upper conveyor frame 2. The thickness between the top surface of the conveyor belt 3 and the top surface of the lower conveyor frame 1 or the upper conveyor frame 2 is greater than the thickness of the circuit board, ensuring that the circuit board can move under the drive of the conveyor belt 3. A guide plate 12 is provided on the top surface of the conveyor belt 3 outside the guide rod 11. The guide rod 1 A buffer assembly is provided inside the conveyor belt 3 between 1 and the guide plate 12. The guide plate 12 is arranged to be inclined downward toward the guide rod 11, and both ends of the guide plate 12 are arranged to be arc-shaped, which can better guide and protect the circuit board. A support rod 15 is rotatably sleeved on the bottom of the guide plate 12, and both ends of the support rod 15 are fixed to the inner wall of the lower conveyor rack 1. A fixing plate 13 is fixed to the inner wall of the lower conveyor rack 1 below the guide plate 12, and a number of springs 14 are fixed equidistantly between the top surface of the fixing plate 13 and the bottom surface of the guide plate 12. Example

[0028] Refer to the figure Figure 3 and Figure 4 As shown, the buffer assembly includes a support plate 16, a supporting plate 17 and a second spring 20. The support plate 16 is provided inside the conveyor belt 3 between the guide rod 11 and the guide plate 12, and the front and rear ends of the support plate 16 are fixed to the inner wall of the lower conveyor frame 1. A supporting plate 17 is slidably provided inside the lower conveyor frame 1 above the support plate 16, and a plurality of limiting slide bars 19 are fixed to the bottom surface of the supporting plate 17. Each limiting slide bar 19 is slidably inserted into the support plate 16. A second spring 20 is sleeved on each limiting slide bar 19 on the bottom surface of the support plate 16, and both ends of the second spring 20 are respectively fixed to the support plate 16 and the limiting slide bar 19;

[0029] Specifically, a buffer rubber pad 18 is glued and fixed to the top surface of the support plate 17 to protect the end of the circuit board when the circuit board falls on the conveyor belt 3 below. A slider that cooperates with the limiting slide bar 19 is provided inside the support plate 16. Each limiting slide bar 19 is set to an inverted T shape to prevent the support plate 17 from separating from the support plate 16.

[0030] The use process of the circuit board surface defect detection device provided by the utility model is as follows:

[0031] Working principle: When it is necessary to perform surface defect inspection on the circuit board, turn on the drive motor 10, so that the drive motor 10 drives the upper conveyor belt 3 to move toward the guide rod 11 side. At this time, the belt 9 drives the rotating rod 8 to rotate, and the rotating rod 8 drives the transmission roller 4 in the lower conveyor frame 1 to rotate in the opposite direction through the gear 7, which can drive the conveyor belt 3 in the lower conveyor frame 1 to move away from the conveyor belt 3. The circuit board is placed from the loading end of the conveyor belt 3 to the middle of the upper surface of the conveyor belt 3 of the upper conveyor frame 2. Driven by the conveyor belt 3, the circuit board moves to the bottom of the upper industrial camera 6, and is photographed by the industrial camera 6 for surface comparison inspection. After the inspection is completed, the conveyor belt 3 drives the circuit board to continue to move to the end, and gradually moves out to one end and falls on the lower conveyor frame 1, under the guidance of the guide rod 11, the circuit board is tilted. At this time, under the reverse rotation of the conveyor belt 3 below, the circuit board rotates in the opposite direction with the guide rod 11 as the support. After rotating to flipping, it falls on the guide plate 12, so that the guide plate 12 rotates and compresses the spring 14 under the support of the support rod 15, so that the circuit board can be buffered and protected. At this time, the conveyor belt 3 drives the circuit board to continue moving until the other end of the circuit board falls on the lower conveyor rack 1. When both ends fall on the lower conveyor rack 1, the impact force acts on the buffer rubber pad 18, and the supporting plate 17 drives the limit slide bar 19 to stretch the spring 20 downward, so that the buffer rubber pad 18 and the spring 2 20 can absorb part of the impact force, thereby further protecting the circuit board.

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A circuit board surface defect detection device, characterized by: The utility model comprises a lower conveying frame (1) and an upper conveying frame (2), wherein the upper conveying frame (2) is fixed on the top surface of the lower conveying frame (1), a conveying belt (3) is arranged inside the lower conveying frame (1) and the upper conveying frame (2), and a transmission roller (4) is sleeved inside both ends of the conveying belt (3), a support frame (5) is fixed on the top surface of the upper conveying frame (2) and the top surface of the lower conveying frame (1) on the side of the upper conveying frame (2), and an industrial camera (6) is arranged in the middle of the bottom surface of the support frame (5), a driving motor (10) is arranged at one end of the rear side of the upper conveying frame (2), and the transmission roller (4) at one end is sleeved inside the conveying belt (3), and a driving motor (10) is arranged at one end of the rear side of the upper conveying frame (2). ) extends to the outside of the upper conveyor frame (2) and is fixed on the output end of the driving motor (10), the transmission roller (4) in the lower conveyor frame (1) extends to the outside of the rear side of the lower conveyor frame (1) and is fixed with a gear (7), and the side of the gear (7) is meshed with another gear (7), and the other gear (7) is fixedly sleeved on the rotating rod (8), and the rotating rod (8) is rotatably connected to the rear side of the lower conveyor frame (1) through a bearing seat, and the output end of the driving motor (10) and the outer surface of the rotating rod (8) are both fixed with a transmission wheel, and the two transmission wheels are connected by a belt (9).

2. The circuit board surface defect detection device according to claim 1, characterized in that: The length of the conveyor belt (3) in the lower conveyor frame (1) is greater than the length of the conveyor belt (3) in the upper conveyor frame (2), and a guide rod (11) is fixed to the top surface of the lower conveyor frame (1) on the side of the unloading end of the conveyor belt (3).

3. The circuit board surface defect detection device according to claim 1, characterized in that: The two support frames (5) are both configured as an inverted U-shape that cooperates with the lower conveying frame (1) and the upper conveying frame (2), and the thickness between the top surface of the conveyor belt (3) and the top surface of the lower conveying frame (1) or the upper conveying frame (2) is greater than the thickness of the circuit board.

4. The circuit board surface defect detection device according to claim 2, characterized in that: A guide plate (12) is provided on the top surface of the conveyor belt (3) outside the guide rod (11), and a support rod (15) is rotatably sleeved on the bottom of the guide plate (12), and both ends of the support rod (15) are fixed on the inner wall of the lower conveyor frame (1), and a fixed plate (13) is fixed on the inner wall of the lower conveyor frame (1) below the guide plate (12), and a plurality of springs (14) are fixed at equal distances between the top surface of the fixed plate (13) and the bottom surface of the guide plate (12).

5. The circuit board surface defect detection device according to claim 4, characterized in that: A buffer assembly is provided inside the conveyor belt (3) between the guide rod (11) and the guide plate (12). The guide plate (12) is arranged to be tilted downward toward the guide rod (11), and both ends of the guide plate (12) are arranged to be arc-shaped.

6. The circuit board surface defect detection device according to claim 5, characterized in that: The buffer assembly includes a support plate (16), a supporting plate (17) and a second spring (20). A support plate (16) is provided inside the conveyor belt (3) between the guide rod (11) and the guide plate (12), and the front and rear ends of the support plate (16) are fixed on the inner wall of the lower conveyor frame (1). A support plate (17) is slidably provided inside the lower conveyor frame (1) above the support plate (16), and a plurality of limiting slide bars (19) are fixed on the bottom surface of the support plate (17). Each of the limiting slide bars (19) is slidably inserted inside the support plate (16). A second spring (20) is sleeved on each limiting slide bar (19) on the bottom surface of the support plate (16), and both ends of the second spring (20) are respectively fixed on the support plate (16) and the limiting slide bar (19).

7. The circuit board surface defect detection device according to claim 6, characterized in that: A buffer rubber pad (18) is glued and fixed to the top surface of the support plate (17), and a slider that cooperates with the limiting slide rod (19) is provided inside the support plate (16), and each of the limiting slide rods (19) is configured as an inverted T-shape.

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