Endoscope camera module T-shaped welding tool clamp

Abstract

The present application relates to camera module tool fixture technical field, specifically to a kind of endoscope camera module T type welding tool fixture, including front end plate fixed mechanism and rear end plate clamping mechanism, rear end plate clamping mechanism is perpendicular to front end plate fixed mechanism;The upper surface of the front end plate fixed mechanism is equipped with the first installation slot of accommodating front end plate, the left and right sides of the installation slot are equipped with first positioning column and first magnet;The rear end plate clamping mechanism includes positioning plate and clamping plate;The front side of the positioning plate is equipped with second installation slot;The left and right sides of the second installation slot are equipped with second positioning column and second magnet;The bottom surface of the positioning plate is respectively equipped with third magnet and first positioning hole;The front side of the clamping plate is equipped with empty slot;The left and right sides of the empty slot are respectively equipped with fourth magnet and second positioning hole.The present application can solve the problem that existing laser welding positioning fixture is difficult to meet T type plate fixing and pad welding positioning precision.

Description

Technical Field

[0001] This invention relates to the field of camera module tooling fixture technology, specifically to a T-shaped welding tooling fixture for an endoscope camera module. Background Technology

[0002] An endoscope is a medical instrument that enters the human body through various tubes to observe the internal condition of the body. Endoscopes can see lesions that cannot be detected by X-rays, making them extremely useful for doctors. For example, with the help of an endoscope, doctors can observe ulcers or tumors in the stomach and formulate the best treatment plan accordingly. With the rapid development of camera module technology, electronic endoscopes are now widely used in various clinical medical settings.

[0003] The tip of the electronic endoscope has a built-in miniature high-resolution CMOS image sensor chip. This CMOS image sensor chip is located on the front end plate of the T-shaped plate built into the tip of the electronic endoscope lens. Its function is to convert the acquired light signal into a MIPI signal, and then the chip on the rear end plate of the T-shaped plate converts the MIPI signal into an SLVS signal, thereby realizing the transmission of the acquired signal.

[0004] The specific structure is as follows: Figure 1 As shown, due to the extremely small size of the T-shaped board 300, the spacing between the pads on the printed circuit board (pad 303 on the front end board 301) and the pads (pads at the lower end of the rear end board 302) is extremely small. However, to ensure signal transmission quality, the soldering between pad 303 and the pads on the rear end board 302 must be high-precision. Generally, the spacing between the pads is 0.15–0.25 mm. Currently, laser solder ball welding machines are used to weld the T-shaped boards. However, traditional welding positioning fixtures are insufficient to meet the requirements for fixing these T-shaped boards and the precision of pad welding positioning. The welding operation is difficult, and it is hard to guarantee signal transmission quality after welding. Ultimately, this leads to poor image quality and low image clarity transmitted to the video monitor, affecting the doctor's accurate judgment of the patient's condition. Summary of the Invention

[0005] The purpose of this invention is to provide a T-shaped welding fixture for endoscope camera modules, which solves the problem that existing laser welding positioning fixtures cannot meet the requirements for T-shaped plate fixing and welding pad positioning accuracy.

[0006] To achieve the above objectives, a T-shaped welding fixture for an endoscope camera module is provided, including a front-end plate fixing mechanism and a rear-end plate clamping mechanism, wherein the rear-end plate clamping mechanism is perpendicular to the front-end plate fixing mechanism.

[0007] The upper surface of the front plate fixing mechanism is provided with a first mounting groove for accommodating the front plate and keeping the front plate in a horizontal position. The left and right sides of the first mounting groove of the front plate fixing mechanism are provided with a first positioning post and a first magnet.

[0008] The rear plate clamping mechanism includes a positioning plate and a clamping plate;

[0009] The front side of the positioning plate is provided with a second mounting groove that runs through its upper and lower sides and is used to accommodate the rear end plate and keep the rear end plate in a vertical position; the left and right sides of the second mounting groove are provided with a second positioning post and a second magnet; the bottom surfaces of both ends of the front side of the positioning plate are respectively provided with a third magnet that matches and engages with the first magnet, and a first positioning hole that matches and engages with the first positioning post.

[0010] The clamping plate has a matching second mounting groove on its front side and a clearance groove for avoiding the electronic components on the rear end plate; the clearance groove has a fourth magnet matching the second magnet on its left and right sides, and a second positioning hole matching the second positioning post.

[0011] Furthermore, the first mounting groove is provided with a third positioning post that matches and engages with the positioning through hole on the front end plate.

[0012] Furthermore, the first mounting slot is provided with a board removal notch for picking up and placing the front-end board.

[0013] Furthermore, the depth of the first mounting groove is less than the thickness of the front end plate, and the bottom surface of the positioning plate is provided with a horizontal through groove.

[0014] Furthermore, the front end plate fixing mechanism has mounting holes at both ends for fixing the fixture as a whole onto the laser welding machine platform.

[0015] Furthermore, the upper surface of the front-end plate fixing mechanism is provided with two first mounting grooves, and the rear-end plate clamping mechanism is provided with two sets accordingly.

[0016] Principles and advantages:

[0017] 1. The front-end plate fixing mechanism and the rear-end plate clamping mechanism of this solution are set perpendicular to each other. By controlling the processing accuracy, the angle of the T-shaped plate can be kept within the control range, thereby reducing the difficulty of welding operations to a certain extent.

[0018] 2. Several magnets are installed between the rear plate clamping mechanism and the front plate fixing mechanism in this solution. The positioning plate and clamping plate in the rear plate clamping mechanism are clamped and fixed by the attraction of the magnets, which makes it very convenient for the installation, fixing and disassembly of the T-shaped plate. The operation is convenient, time-saving and labor-saving.

[0019] 3. This solution is equipped with several positioning posts and positioning holes to further control the processing precision. It can ensure that the front-end board pads and the rear-end board pads are accurately aligned. Combined with magnetic adsorption, it further reduces the difficulty of welding operations, thereby solving the problem that it is difficult to guarantee the signal transmission quality after welding, resulting in poor image quality and low image clarity transmitted to the video monitor, thus avoiding affecting the doctor's accurate judgment of the patient's condition.

[0020] 4. This solution requires no adjustment after the T-shaped plate is installed and fixed, making it suitable for mass production on laser welding machines. Attached Figure Description

[0021] Figure 1 A three-dimensional isometric view of a T-shaped plate in the prior art;

[0022] Figure 2 This is a three-dimensional axonometric view of a T-shaped welding fixture for an endoscope camera module according to an embodiment of the present invention;

[0023] Figure 3 for Figure 1 3D isometric view of the front end plate fixing mechanism;

[0024] Figure 4 for Figure 1 3D isometric view of the positioning plate in the front end plate fixing mechanism

[0025] Figure 5 for Figure 1 A three-dimensional isometric view of the clamping plate in the front end plate fixing mechanism. Detailed Implementation

[0026] The following detailed description illustrates the specific implementation method:

[0027] The reference numerals in the accompanying drawings include: front-end plate fixing mechanism 100, rear-end plate clamping mechanism 200, T-shaped plate 300, front-end plate 301, rear-end plate 302, solder pad 303, first mounting groove 101, third positioning post 102, vent hole 103, plate removal notch 104, first magnet 105, first positioning post 106, mounting hole 107, 210 positioning plate, second mounting groove 211, third magnet 212, first positioning hole 213, second positioning post 214, second magnet 215, clamping plate 220, clearance groove 221, fourth magnet 222, and second positioning hole 223.

[0028] Example

[0029] A T-shaped welding fixture for an endoscope camera module, basically as follows: Figures 2-5 As shown, it includes a front-end plate fixing mechanism 100 and a rear-end plate clamping mechanism 200, with the rear-end plate clamping mechanism 200 perpendicular to the front-end plate fixing mechanism 100.

[0030] The upper surface of the front-end plate fixing mechanism 100 is provided with a first mounting groove 101 to accommodate the front-end plate 301 and keep the front-end plate 301 in a horizontal position. A first positioning post 106 and a first magnet 105 are provided on both the left and right sides of the first mounting groove 101. In this embodiment, the front-end plate fixing mechanism 100 is a slender cuboid. The first positioning posts 106 and first magnets 105 are symmetrically arranged on the left and right sides of the first mounting groove 101. From left to right, the left side of the first mounting groove 101 contains the first magnet 105 and the first positioning post 106, and the right side of the first mounting groove 101 contains the first positioning post 106 and the first magnet 105. The first magnet 105 is a circular magnet, specifically a neodymium magnet, and is disposed in a blind hole on the upper surface of the front-end plate fixing mechanism 100. In other embodiments, the positions of the first positioning posts 106 and the first magnets 105 can be interchanged.

[0031] A ventilation hole 103 is provided at the center of the first mounting groove 101. Two third positioning posts 102 are provided on the diagonal of the first mounting groove 101, which match and engage with the positioning holes on the diagonal of the front end plate 301. The first mounting groove 101 is provided with a plate-removing notch 104 for removing and placing the front end plate 301. The plate-removing notch 104 is a horizontal strip-shaped channel that penetrates the front and rear sides of the front end plate fixing mechanism 100 and the center of the first mounting groove 101. Based on the top view angle of the front end plate fixing mechanism 100, the bottom surface of the plate-removing notch 104 is higher than the bottom surface of the first mounting groove 101.

[0032] The front end plate fixing mechanism 100 has mounting holes 107 at both ends for fixing the fixture as a whole on the laser welding machine platform.

[0033] The upper surface of the front-end plate fixing mechanism 100 is provided with two first mounting slots 101, and the rear-end plate clamping mechanism 200 is provided with two sets of corresponding slots. In other embodiments, one first mounting slot 101 or three or more first mounting slots 101 may be provided.

[0034] The rear plate clamping mechanism 200 includes a positioning plate 210 and a clamping plate 220;

[0035] The positioning plate 210 has a second mounting groove 211 extending through its upper and lower sides to accommodate the rear end plate 302 and maintain its vertical position. The second mounting groove 211 has a second positioning post 214 and a second magnet 215 on both its left and right sides. The bottom surfaces at both ends of the front side of the positioning plate 210 have a third magnet 212 that matches and engages with the first magnet 105, and a first positioning hole 213 that matches and engages with the first positioning post 106. In this embodiment, the positioning plate 210 is a long, narrow cuboid. The second positioning posts 214 and the second magnet 215 are symmetrically arranged on the left and right sides of the second mounting groove 211. From left to right, the left side of the second mounting groove 211 has the second positioning post 214 and the second magnet 215, and the right side has the second magnet 215 and the second positioning post 214. The second magnet 215 is a circular magnet, specifically a neodymium magnet, and is disposed in a blind hole on the front side of the positioning plate 210. In other embodiments, the positions of the second positioning post 214 and the second magnet 215 can be interchanged.

[0036] The clamping plate 220 has a second mounting groove 211 on its front side that matches and engages with it, and a clearance groove 221 for avoiding the electronic components on the rear end plate 302. The clearance groove 221 has a fourth magnet 222 on its left and right sides that matches and engages with the second magnet 215, and a second positioning hole 223 that matches and engages with the second positioning post 214.

[0037] The depth of the first mounting groove 101 is less than the thickness of the front end plate 301, and the bottom surface of the positioning plate 210 is provided with a horizontal through groove, similar to a U-shaped handle.

[0038] This solution can effectively fix the front end plate 301 and the rear end plate 302 of the T-shaped plate 300, preventing them from moving during the welding process. At the same time, the use of positioning posts and positioning holes can ensure the positioning accuracy of the pads 303, ensuring welding quality and reducing defects such as bridging and cold solder joints.

[0039] The installation and use method of a T-shaped welding fixture for an endoscope camera module is as follows:

[0040] Step 1: Fixing the front end plate 301. Place the front end plate 301 into the first mounting slot 101, and ensure that the two positioning through holes and the third positioning post 102 on the front end plate 301 fit tightly together to accurately fix the front end plate 301 onto the front end plate fixing mechanism 100;

[0041] Step 2: Fixing the rear end plate 302. Place the rear end plate 302 into the second mounting slot 211, and then cover the clamping plate 220 onto the positioning plate 210. The clamping plate 220 has two second positioning holes 223, which cooperate with the two second positioning posts 214 of the positioning plate 210 respectively, so as to achieve precise positioning. At the same time, the second magnet 215 on the positioning plate 210 and the fourth magnet 222 on the clamping plate 220 attract each other with opposite polarities, generating magnetic force to firmly fix the rear end plate 302 in the rear end plate clamping mechanism 200.

[0042] Step 3: T-shaped positioning and fixing of front end plate 301 and rear end plate 302. The first positioning hole 213 on the lower left side of positioning plate 210 is tightly fitted with the first positioning post 106 on the upper surface of front end plate fixing mechanism 100, so that the third magnet 212 of the first magnet 105 is aligned and opposite poles attract each other, generating magnetic force to firmly fix front end plate fixing mechanism 100 and rear end plate clamping mechanism 200.

[0043] Step 4: Welding. After the T-shaped plate 300 is assembled and positioned, the tooling fixture is placed into the laser welding machine. The two mounting holes 107 at both ends of the front plate fixing mechanism 100 are used to fix it to the machine platform. Laser solder ball welding technology is used to weld the T-shaped plate 300.

[0044] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A T-shaped welding fixture for an endoscope camera module, characterized in that: It includes a front-end plate fixing mechanism and a rear-end plate clamping mechanism, with the rear-end plate clamping mechanism perpendicular to the front-end plate fixing mechanism; The upper surface of the front plate fixing mechanism is provided with a first mounting groove for accommodating the front plate and keeping the front plate in a horizontal position. The left and right sides of the first mounting groove of the front plate fixing mechanism are provided with a first positioning post and a first magnet. The rear plate clamping mechanism includes a positioning plate and a clamping plate; The front side of the positioning plate is provided with a second mounting groove that runs through its upper and lower sides and is used to accommodate the rear end plate and keep the rear end plate in a vertical position; the left and right sides of the second mounting groove are provided with a second positioning post and a second magnet; the bottom surfaces of both ends of the front side of the positioning plate are respectively provided with a third magnet that matches and engages with the first magnet, and a first positioning hole that matches and engages with the first positioning post. The clamping plate has a matching second mounting groove on its front side and a clearance groove for avoiding the electronic components on the rear end plate; the clearance groove has a fourth magnet matching the second magnet on its left and right sides, and a second positioning hole matching the second positioning post.

2. The T-shaped welding fixture for an endoscope camera module according to claim 1, characterized in that: The first mounting groove is provided with a third positioning post that matches and engages with the positioning through hole on the front end plate.

3. The T-shaped welding fixture for an endoscope camera module according to claim 1, characterized in that: The first mounting slot is provided with a board removal notch for picking up and placing the front-end board.

4. An endoscopic camera module T-shaped welding tooling fixture according to claim 1, characterized in that: The depth of the first mounting groove is less than the thickness of the front end plate, and the bottom surface of the positioning plate is provided with a horizontal through groove.

5. The T-shaped welding fixture for an endoscope camera module according to claim 1, characterized in that: The front-end plate fixing mechanism has mounting holes at both ends for fixing the fixture as a whole onto the laser welding machine platform.

6. The T-shaped welding fixture for an endoscope camera module according to claim 1, characterized in that: The upper surface of the front-end plate fixing mechanism is provided with two first mounting slots, and the rear-end plate clamping mechanism is provided with two sets accordingly.

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