Circuit board welding spot optical detection device

Abstract

The utility model relates to the technical field of circuit board welding spots, and discloses an optical detection device for circuit board welding spots, which is characterized in that the interiors of telescopic pipes on two sides are connected with first springs, the bottoms of the telescopic pipes on two sides are connected with a bottom plate, the four ends of the top of the bottom plate are connected with toothed plates, the toothed plates are meshed with gears, and the toothed plates are connected with the first springs. According to the optical detection device for the circuit board welding spots, a circuit board needing to be detected is placed on the workbench, and at the moment, the handles on the two sides are held to enable the tooth plates on the two sides to move downwards until the fixing blocks on the two sides are popped out from the interiors of the tooth plates. And when the tooth plates move downwards, the gears rotate, so that the rotating shafts on the two sides are driven to rotate, the fixing plates on the two sides rotate by 90 degrees to fix the circuit board placed in the workbench, and at the moment, the tooth plates on the two sides are matched with the telescopic pipes on the two sides to fix the position of the circuit board.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board solder joint technology, specifically an optical inspection device for circuit board solder joints. Background Technology

[0002] An optical inspection device for circuit board solder joints is a device used to inspect the quality of solder joints on circuit boards. It is mainly used for quality control in the electronic manufacturing process. It uses optical imaging technology to perform high-precision inspection of solder joints, ensuring that the shape, size, and position of the solder joints meet design requirements and avoiding defects such as cold solder joints, missing solder joints, and solder joint misalignment. However, some inspection devices often need to fix the circuit board to be inspected when inspecting it. Most devices fix the circuit board by using a corresponding clamping plate. This fixing method usually involves repeatedly rotating a threaded tube to control the position of the clamping plate. However, the threaded tube is prone to wear after repeated rotations and needs to be replaced, which is inconvenient for operators to fix the circuit board. Therefore, this method needs to be improved. Utility Model Content

[0003] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides an optical inspection device for circuit board solder joints. This device effectively solves the problem that circuit board solder joint optical inspection devices are used to inspect the quality of solder joints on circuit boards, primarily for quality control in the electronic manufacturing process. It uses optical imaging technology to perform high-precision inspection of solder joints, ensuring that the shape, size, and position of the solder joints meet design requirements and avoiding defects such as cold solder joints, missing solder joints, and solder joint misalignment. However, some inspection devices often require fixing the circuit board during inspection. Most devices fix the circuit board using clamping plates, which typically involve repeatedly rotating a threaded tube to control the position of the clamping plate. This threaded tube is prone to wear after repeated rotations and needs replacement, making it inconvenient for workers to fix the circuit board.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an optical inspection device for circuit board solder joints, comprising a worktable, a rotating shaft, and a fixing plate, wherein the rotating shafts on both sides are connected to both sides of the inner cavity of the worktable, and the fixing plates on both sides are connected to the outer walls of the rotating shafts on both sides. A fixing component is provided inside the worktable, and an inspection component is provided at the top of the inner cavity of the worktable.

[0005] The fixing assembly includes gears, with both gears connected to the outer walls of the two rotating shafts. Telescopic tubes are connected to both sides of the bottom of the worktable, and first springs are connected inside each telescopic tube. A base plate is connected to the bottom of each telescopic tube, and toothed plates are connected to the four ends of the top of the base plate. The toothed plates mesh with the gears. Second springs are connected to both sides of the inner cavity of the worktable, and top plates are connected to the tops of the second springs. Third springs are connected inside each toothed plate, and a fixing block is connected to one side of each third spring. Push plates are connected to both sides of the outer wall of the worktable, and handles are connected to the front sides of the toothed plates on both front ends.

[0006] Preferably, the bottom of the two fixing plates and the top of the two top plates are connected to anti-slip pads.

[0007] Preferably, both sides of the top of the workbench are connected to mounting shafts, the outer walls of both mounting shafts are connected to fourth springs, the outer walls of both mounting shafts are connected to clamps, and the clamps are connected to the fourth springs.

[0008] Preferably, pulleys are connected to both sides of the outer wall of the base plate, and both pulleys are in contact with the inner wall of the workbench.

[0009] Preferably, all four ends of the top of the inner cavity of the worktable are connected to limit rods, and one end of the limit rod is located inside the toothed plate.

[0010] Preferably, the inspection assembly includes a threaded tube connected to the top of the inner cavity of the workbench, a motor mounted on the inner wall of the workbench, the drive end of the motor connected to the threaded tube, a mounting base connected to the outer wall of the threaded tube, an optical inspection equipment body mounted at the bottom of the mounting base, and a parameter input device connected to the right side of the workbench.

[0011] Preferably, lighting strips are connected to both sides of the bottom of the mounting base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Place the circuit board to be tested on the workbench, then hold the handles on both sides and move the toothed plates downwards until the fixing blocks on both sides pop out from inside. As the toothed plates move downwards, the gears rotate, which in turn drives the rotating shafts on both sides to rotate, causing the fixing plates on both sides to rotate 90 degrees to fix the circuit board placed on the workbench. At this time, the toothed plates on both sides cooperate with the telescopic tubes on both sides to fix its position.

[0014] 2. After the circuit board is tested, push the two push plates inward to make the two fixing blocks re-enter the interior of the two toothed plates. At this time, the first spring on both sides rebounds, causing the two toothed plates to rise and reset, and the two fixing plates to rotate 90 degrees and open automatically, making it easy for the staff to take out the tested circuit board. The staff can fix or remove the circuit board without performing any additional operations.

[0015] 3. When inspecting the circuit board, the inspection parameters are set through the parameter input device, and the motor is started to move the optical inspection equipment body directly above the solder joint. The solder joint can then be inspected, avoiding missed inspections and eliminating the need for manual inspection, thus avoiding the problems of missed and incorrect inspections. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the fixing plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the top plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing block structure of this utility model.

[0022] In the diagram: 100, worktable; 200, rotating shaft; 201, fixed plate; 202, gear; 203, telescopic tube; 204, first spring; 205, base plate; 206, toothed plate; 207, second spring; 208, top plate; 209, third spring; 210, fixed block; 211, push plate; 212, mounting shaft; 213, fourth spring; 214, clamping plate; 215, pulley; 216, limit rod; 217, handle; 300, threaded tube; 301, motor; 302, mounting base; 303, optical inspection equipment body; 304, parameter input device; 305, lighting strip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 An optical inspection device for circuit board solder joints includes a worktable 100, a rotating shaft 200, and a fixing plate 201. The rotating shafts 200 on both sides are rotatably connected to the two sides of the inner cavity of the worktable 100, and the fixing plates 201 on both sides are fixedly connected to the outer walls of the rotating shafts 200 on both sides. A fixing component is provided inside the worktable 100, and an inspection component is provided on the top of the inner cavity of the worktable 100.

[0025] The fixed assembly includes gears 202, with both gears 202 fixedly connected to the outer walls of the two rotating shafts 200. Telescopic tubes 203 are fixedly connected to both sides of the bottom of the worktable 100. First springs 204 are fixedly connected inside each telescopic tube 203. A base plate 205 is fixedly connected to the bottom of each telescopic tube 203. Toothed plates 206 are fixedly connected to the four ends of the top of the base plate 205. The toothed plates 206 mesh with the gears 202, thereby driving the rotating shafts 200 when the toothed plates 206 move up and down. The worktable 100 rotates, and second springs 207 are fixedly connected to both sides of the inner cavity. Top plates 208 are fixedly connected to the top of the second springs 207 on both sides. Thus, when fixing the circuit board, the cooperation between the top plates 208 and the second springs 207 can automatically adapt to circuit boards of different thicknesses. Third springs 209 are fixedly connected to the inside of the toothed plates 206 on both sides. Fixing blocks 210 are fixedly connected to one side of the third springs 209 on both sides. Push plates 211 are movably connected to both sides of the outer wall of the worktable 100. Handles 217 are fixedly connected to the front sides of the toothed plates 206 on both sides. By placing the circuit board to be tested on the workbench 100, the handles 217 are held to move the toothed plates 206 downwards until the fixing blocks 210 pop out from inside. During the downward movement of the toothed plates 206, the gears 202 rotate, thereby driving the rotating shafts 200 on both sides to rotate, causing the fixing plates 201 on both sides to rotate 90 degrees to fix the circuit board placed in the workbench 100. At this time, the toothed plates 206 on both sides cooperate with the telescopic tubes 203 on both sides to fix its position. After the circuit board is tested, the push plates 211 on both sides are pushed inward to make the fixing blocks 210 on both sides re-enter the interior of the toothed plates 206 on both sides. At this time, the first springs 204 on both sides rebound, causing the toothed plates 206 on both sides to rise and reset, and the fixing plates 201 on both sides to rotate 90 degrees and open automatically, making it easy for the staff to take out the tested circuit board. The staff can fix or remove the circuit board without additional operation.

[0026] Anti-slip pads are fixedly connected to the bottom of the two side fixing plates 201 and the top of the two side top plates 208, so that the circuit board can be fixed more firmly.

[0027] The top of the workbench 100 is fixedly connected to two sides of the mounting shaft 212. The outer wall of the mounting shaft 212 on both sides is fitted with a fourth spring 213. The outer wall of the mounting shaft 212 on both sides is movably connected to a clamping plate 214. The clamping plate 214 on both sides is connected to the fourth spring 213 on both sides. By placing the circuit board in the middle of the clamping plate 214 on both sides, the fourth spring 213 on both sides pulls the clamping plate 214 on both sides to move towards the center, clamping the circuit board and preventing the circuit board from being placed off-center.

[0028] Both sides of the outer wall of the base plate 205 are fixedly connected to pulleys 215, and both pulleys 215 are in contact with the inner wall of the worktable 100, so that the base plate 205 can move up and down more smoothly.

[0029] Limiting rods 216 are fixedly connected to the four ends of the top of the inner cavity of the worktable 100. One end of the limiting rod 216 is located inside the toothed plate 206, which makes the movement of the toothed plate 206 more stable and prevents misalignment.

[0030] The inspection assembly includes a threaded tube 300, which is rotatably connected to the top of the inner cavity of the workbench 100. A motor 301 is fixedly installed on the inner wall of the workbench 100, and the transmission end of the motor 301 is connected to the threaded tube 300. A mounting base 302 is screwed onto the outer wall of the threaded tube 300, and an optical inspection equipment body 303 is fixedly installed at the bottom of the mounting base 302. A parameter input device 304 is fixedly connected to the right side of the workbench 100. When inspecting the circuit board, the inspection parameters are set through the parameter input device 304, and the motor 301 is started to move the optical inspection equipment body 303 directly above the solder joint, so that the solder joint can be inspected, avoiding missed inspections. This eliminates the need for manual inspection and avoids the problems of missed and incorrect inspections.

[0031] Lighting strips 305 are fixedly connected to both sides of the bottom of the mounting base 302, which can provide illumination for the detection position and make the detection results more accurate.

[0032] Working principle: By placing the circuit board to be tested on the worktable 100, the handles 217 on both sides are held to move the toothed plates 206 downwards until the fixing blocks 210 on both sides pop out from their interior. During the downward movement of the toothed plates 206, the gears 202 rotate, thereby driving the rotating shafts 200 on both sides to rotate, causing the fixing plates 201 on both sides to rotate 90 degrees to fix the circuit board placed in the worktable 100. At this time, the toothed plates 206 on both sides cooperate with the telescopic tubes 203 on both sides to fix its position. After the circuit board is tested, the push plates 211 on both sides are pushed inwards to move the fixing blocks 210 on both sides. The device re-enters the interior of the toothed plates 206 on both sides. At this time, the first springs 204 on both sides rebound, causing the toothed plates 206 on both sides to rise and reset. This causes the fixing plates 201 on both sides to rotate 90 degrees and open automatically, making it easy for staff to remove the circuit board after inspection. This allows staff to fix or remove the circuit board without additional operation. When inspecting the circuit board, the inspection parameters are set through the parameter input device 304, and the motor 301 is started to move the optical inspection device body 303 directly above the solder joint, so that the solder joint can be inspected, avoiding missed inspections. This eliminates the need for manual inspection and avoids the problems of missed and incorrect inspections.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical inspection device for circuit board solder joints, comprising a worktable (100), a rotating shaft (200), and a fixing plate (201), characterized in that: The two rotating shafts (200) on both sides are connected to the two sides of the inner cavity of the worktable (100), and the two fixing plates (201) on both sides are connected to the outer walls of the two rotating shafts (200). The worktable (100) is provided with a fixing component inside, and an inspection component is provided at the top of the inner cavity of the worktable (100). The fixing component includes gears (202), with both gears (202) connected to the outer walls of the two rotating shafts (200) on both sides. Telescopic tubes (203) are connected to both sides of the bottom of the worktable (100), and first springs (204) are connected inside each telescopic tube (203). A base plate (205) is connected to the bottom of each telescopic tube (203), and toothed plates (206) are connected to the four ends of the top of the base plate (205). The toothed plates (206) are connected to the gears (202). 02) Engagement, with a second spring (207) connected to both sides of the inner cavity of the worktable (100), a top plate (208) connected to the top of the second spring (207) on both sides, a third spring (209) connected to the inside of the toothed plates (206) on both sides, a fixing block (210) connected to one side of the third spring (209) on both sides, a push plate (211) connected to both sides of the outer wall of the worktable (100), and a handle (217) connected to the front side of the toothed plates (206) on both sides of the front end.

2. The optical inspection device for circuit board solder joints according to claim 1, characterized in that: Anti-slip pads are connected to the bottom of the fixing plates (201) on both sides and the top of the top plates (208) on both sides.

3. The optical inspection device for circuit board solder joints according to claim 1, characterized in that: The workbench (100) has mounting shafts (212) connected to both sides of its top. The outer walls of the mounting shafts (212) on both sides are connected to fourth springs (213). The outer walls of the mounting shafts (212) on both sides are connected to clamps (214). The clamps (214) on both sides are connected to the fourth springs (213) on both sides.

4. The optical inspection device for circuit board solder joints according to claim 1, characterized in that: Both sides of the outer wall of the base plate (205) are connected to pulleys (215), and both pulleys (215) are in contact with the inner wall of the worktable (100).

5. The optical inspection device for circuit board solder joints according to claim 1, characterized in that: The top of the inner cavity of the worktable (100) is connected to four limit rods (216), one end of which is located inside the toothed plate (206).

6. The optical inspection device for circuit board solder joints according to claim 1, characterized in that: The inspection assembly includes a threaded tube (300) connected to the top of the inner cavity of the workbench (100). A motor (301) is installed on the inner wall of the workbench (100), and the transmission end of the motor (301) is connected to the threaded tube (300). A mounting base (302) is connected to the outer wall of the threaded tube (300), and an optical inspection equipment body (303) is installed at the bottom of the mounting base (302). A parameter input device (304) is connected to the right side of the workbench (100).

7. The optical inspection device for circuit board solder joints according to claim 6, characterized in that: Lighting strips (305) are connected to both sides of the bottom of the mounting base (302).

Images