Circuit board optical detection device

Abstract

The utility model relates to the technical field of circuit board optical detection, in particular to a circuit board optical detection device. The device comprises operating tables, bases are slidably connected to the two ends of the top ends of the operating tables, vertical plates are fixed to the ends, close to each other, of the top ends of the two bases, U-shaped frames are rotatably connected to the ends, close to each other, of the two vertical plates, and an adjusting mechanism used for driving the U-shaped frames to rotate by angles is arranged at the top end of one operating table. According to the optical detection device for the circuit board provided by the utility model, the circuit board is placed between the two U-shaped frames, the two U-shaped frames are driven to move according to the circuit boards with different lengths by sliding the two bases, and when the circuit board needs to be subjected to multi-angle detection, the U-shaped frames and the circuit board are driven by the adjusting mechanism to carry out angle adjustment, so that the detection accuracy is improved. Therefore, the circuit board detection convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection of circuit boards, in particular to an optical detection device for circuit boards. Background Art

[0002] Circuit boards are known by various names, including ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCBs, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, and printed circuit boards. Circuit boards miniaturize and visualize circuits, playing a vital role in the mass production of fixed circuits and optimizing the layout of electrical appliances. Optical inspection of circuit boards generally involves two methods: visual inspection and optical automated automated inspection (AOI). AOI uses a high-definition camera to quickly capture images and then compares them to the original document. This method can fundamentally address potential problems such as open circuits, short circuits, micro-open circuits, and micro-short circuits.

[0003] When using the above technology, it was found that the following technical problems exist in the existing technology: most of the existing circuit board optical inspection and fixing devices use bolts or clamps to fix the circuit board on the supporting plate and then cannot move, resulting in the circuit board being unable to be inspected at multiple angles during inspection. The limitations are large, and the existing technology usually uses manual angle rotation, and manual rotation of the angle will reduce the accuracy of the angle rotation. For this reason, we designed a circuit board optical inspection device to provide another technical solution to the above technical problems. Utility Model Content

[0004] Based on this, it is necessary to provide a circuit board optical inspection device to address the above technical problems. When in use, the circuit board is placed between two U-shaped frames, and then the two bases are slid to drive the two U-shaped frames to move according to circuit boards of different lengths. When the circuit board needs to be inspected at multiple angles, the U-shaped frames and the circuit board are driven to adjust the angle through the adjustment mechanism to improve the convenience of circuit board inspection.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A circuit board optical inspection device includes an operating table, both ends of the top of the operating table are slidably connected to a base, two vertical plates are fixed to the tops of the two bases and the ends close to each other, and two ends of the vertical plates close to each other are rotatably connected to a U-shaped frame, and the top of one of the operating tables is provided with an adjustment mechanism for driving the U-shaped frame to rotate at an angle.

[0007] As a preferred embodiment of the circuit board optical detection device provided by the utility model, the adjustment mechanism includes a servo motor, a worm and a worm wheel, wherein fixed blocks are fixed on both sides of the top of one of the bases, and the internal rotation of the fixed block is connected to the worm, and a servo motor is fixed on one side of one of the fixed blocks, the output end of the servo motor is fixed to the worm, the top of the worm is meshed with a worm wheel, and the inside of the worm wheel is fixed to one of the U-shaped frames.

[0008] As a preferred embodiment of the circuit board optical inspection device provided by the present invention, T-slots are provided on both sides of the top inner portion of the operating table, and the two ends of the inner side of the T-slots are respectively slidably connected to the base.

[0009] As a preferred embodiment of the circuit board optical inspection device provided by the present invention, a clamping mechanism for driving the two bases and the U-shaped frame for adjustment is provided at the top of the operating table, and the clamping mechanism includes a threaded rod, a transmission rod and a hand wheel. The top of the operating table is rotatably connected to the transmission rod, and threaded rods are fixed at both ends of the outer side of the transmission rod. The two threaded rods have opposite rotation directions, and a hand wheel is fixed at one end of the transmission rod.

[0010] As a preferred embodiment of the circuit board optical inspection device provided by the utility model, the clamping mechanism also includes a limit assembly, the limit assembly includes a limit block and a latch, the limit block is fixed at the top of the operating table and at one end of the hand wheel, a plurality of limit holes are opened inside the hand wheel, the limit block is slidably connected to the inside of the limit block with a latch, and one end of the latch is slidably connected to the limit hole.

[0011] As a preferred embodiment of the circuit board optical detection device provided by the present invention, the U-shaped frame is slidably connected to a splint inside, and pull rods are fixed on both sides of the top of the splint. The top of the pull rod is slidably connected to the U-shaped frame, and a small spring is sleeved on the outside of the pull rod and located between the top of the splint and the U-shaped frame.

[0012] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

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

[0014] The utility model provides a circuit board optical inspection device, which drives the worm and worm wheel to rotate through the output end of the servo motor, so that the worm wheel drives one of the U-shaped frames to rotate, and the U-shaped frame drives the circuit board to adjust the angle of rotation, so as to improve the convenience of circuit board inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the threaded rod and the base of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the splint and the U-shaped frame of the utility model.

[0020] In the figure: 1. Operating table; 2. Threaded rod; 3. Vertical plate; 4. U-shaped frame; 5. T-slot; 6. Worm gear; 7. Servo motor; 8. Drive rod; 9. Worm; 10. Base; 11. Clamp; 12. Small spring; 13. Pull rod; 14. Limit block; 15. Latch; 16. Hand wheel. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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

[0025] Please refer to Figures 1-4A circuit board optical inspection device includes an operating table 1, with bases 10 slidably connected to both ends of the top of the operating table 1, vertical plates 3 fixed to the top ends of the two bases 10 that are close to each other, and U-shaped frames 4 rotatably connected to the ends of the two vertical plates 3 that are close to each other, and an adjustment mechanism for driving the U-shaped frame 4 to rotate at an angle is provided at the top of one of the operating tables 1;

[0026] When in use, the circuit board is placed between the two U-shaped frames 4, and then the two bases 10 are slid to drive the two U-shaped frames 4 to move according to the circuit boards of different lengths. When the circuit board needs to be inspected at multiple angles, the adjustment mechanism drives the U-shaped frames 4 and the circuit board to adjust the angle, so as to improve the convenience of circuit board inspection.

[0027] The adjustment mechanism includes a servo motor 7, a worm 9 and a worm wheel 6. A fixed block is fixed on both sides of the top of one of the bases 10. The inside of the fixed block is rotatably connected to the worm 9. A servo motor 7 is fixed to one side of one of the fixed blocks. The output end of the servo motor 7 is fixed to the worm 9. The top of the worm 9 is meshed with the worm wheel 6. The inside of the worm wheel 6 is fixed to one of the U-shaped frames 4.

[0028] The output end of the servo motor 7 drives the worm 9 and the worm wheel 6 to rotate, so that the worm wheel 6 drives one of the U-shaped frames 4 to rotate, and the U-shaped frame 4 drives the circuit board to adjust the angle of rotation;

[0029] T-slots 5 are provided on both sides of the top of the operating table 1. The two ends of the inner side of the T-slots 5 are slidably connected to the base 10 respectively. The T-slots 5 improve the sliding stability of the base 10, thereby improving the stability of the two U-shaped frames 4 in clamping the circuit board.

[0030] The top of the operating table 1 is provided with a clamping mechanism for driving the two bases 10 and the U-shaped frame 4 for adjustment. The clamping mechanism includes a threaded rod 2, a transmission rod 8 and a hand wheel 16. The top of the operating table 1 is rotatably connected to the transmission rod 8. Both ends of the outer side of the transmission rod 8 are fixed with threaded rods 2. The two threaded rods 2 rotate in opposite directions. A hand wheel 16 is fixed to one end of the transmission rod 8. By rotating the hand wheel 16, the transmission rod 8 and the threaded rod 2 are rotated, so that the threaded rod 2 drives the two bases 10 and the U-shaped frame 4 to adjust in the direction of approaching or moving away from each other, so as to facilitate clamping according to circuit boards of different lengths.

[0031] The clamping mechanism also includes a limit assembly, which includes a limit block 14 and a latch 15. The limit block 14 is fixed at the top of the operating table 1 and at one end of the hand wheel 16. The hand wheel 16 is provided with a plurality of limit holes. The limit block 14 is slidably connected to the inside of the limit block 14. One end of the latch 15 is slidably connected to the limit hole. When the two U-shaped frames 4 clamp the circuit board, loosening of the clamping is prevented. At this time, the latch 15 is slidably connected to the corresponding limit hole, which facilitates improving the stability of the U-shaped frame 4.

[0032] The U-shaped frame 4 is internally slidably connected to a splint 11, and pull rods 13 are fixed on both sides of the top of the splint 11. The top of the pull rod 13 is slidably connected to the U-shaped frame 4, and a small spring 12 is sleeved on the outside of the pull rod 13 and located between the top of the splint 11 and the U-shaped frame 4. The elasticity of the small spring 12 drives the splint 11 to apply pressure to the circuit board, and the elastic force of the small spring 12 is small and cannot cause damage to the circuit board. The small spring 12 effectively drives the splint 11 to limit the circuit board to prevent it from falling off during angular rotation.

[0033] The use process of the circuit board optical inspection device provided by the utility model is as follows: when in use, the circuit board is placed between the two U-shaped frames 4, and the transmission rod 8 and the threaded rod 2 are rotated by turning the hand wheel 16, so that the threaded rod 2 drives the two bases 10 and the U-shaped frames 4 to move closer to each other to clamp the circuit board, so as to facilitate clamping circuit boards of different lengths. Then, the latch 15 is slidably connected with the corresponding limiting hole to facilitate improving the stability of the U-shaped frame 4 in fixing the circuit board;

[0034] The output end of the servo motor 7 drives the worm 9 and the worm wheel 6 to rotate, so that the worm wheel 6 drives one of the U-shaped frames 4 to rotate, and the U-shaped frame 4 drives the circuit board to adjust the angle of rotation, so as to improve the convenience of circuit board detection.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous 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 optical detection device, characterized in that: The invention comprises an operating table (1), wherein both ends of the top of the operating table (1) are slidably connected to a base (10), and vertical plates (3) are fixed to the tops of the two bases (10) and the ends close to each other, and the ends of the two vertical plates (3) close to each other are rotatably connected to a U-shaped frame (4), and an adjustment mechanism for driving the U-shaped frame (4) to rotate at an angle is provided at the top of one of the operating tables (1).

2. The circuit board optical detection device according to claim 1, characterized in that: The regulating mechanism comprises a servo motor (7), a worm (9) and a worm wheel (6), wherein a fixing block is fixed on both sides of the top of one of the bases (10), the interior of the fixing block is rotatably connected to the worm (9), a servo motor (7) is fixed on one side of one of the fixing blocks, the output end of the servo motor (7) is fixed to the worm (9), the top end of the worm (9) is meshedly connected to the worm wheel (6), and the interior of the worm wheel (6) is fixed to one of the U-shaped frames (4).

3. The circuit board optical detection device according to claim 2, characterized in that: T-shaped slots (5) are provided on both sides of the top of the operating table (1), and the two ends of the inner side of the T-shaped slots (5) are respectively slidably connected to the base (10).

4. The circuit board optical inspection device according to claim 2, characterized in that: The top of the operating table (1) is provided with a clamping mechanism for driving the two bases (10) and the U-shaped frame (4) for adjustment, the clamping mechanism comprising a threaded rod (2), a transmission rod (8) and a hand wheel (16), the top of the operating table (1) is rotatably connected to the transmission rod (8), the two ends of the outer side of the transmission rod (8) are fixed with threaded rods (2), the two threaded rods (2) have opposite rotation directions, and one end of the transmission rod (8) is fixed with a hand wheel (16).

5. The circuit board optical inspection device according to claim 4, characterized in that: The clamping mechanism further comprises a limiting assembly, the limiting assembly comprising a limiting block (14) and a latch (15), the limiting block (14) being fixed at the top of the operating table (1) and at one end of the hand wheel (16), a plurality of limiting holes being provided inside the hand wheel (16), the limiting block (14) being slidably connected to the latch (15), and one end of the latch (15) being slidably connected to the limiting hole.

6. The circuit board optical inspection device according to claim 5, characterized in that: The U-shaped frame (4) is internally slidably connected to a clamping plate (11), and pull rods (13) are fixed on both sides of the top of the clamping plate (11). The top of the pull rod (13) is slidably connected to the U-shaped frame (4), and a small spring (12) is sleeved on the outside of the pull rod (13) and located between the top of the clamping plate (11) and the U-shaped frame (4).

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