Positioning and pressing device for laser micro-welding of copper-plated spring and substrate

Abstract

The present application relates to the technical field of welding, in particular to a positioning and pressing device for laser micro welding of copper-plated spring and substrate, mainly comprising a machine body, and further comprising: a positioning mechanism arranged above the machine body, a pressing mechanism arranged above the machine body, and a detection mechanism arranged above the machine body. When the pressing column is downwardly pressed against the copper-plated spring, the copper-plated spring generates a reverse force against the pressing column after the pressing column is in contact with and pressed against the copper-plated spring. The pressing column drives the circular plate to extrude the elastic member II, and the elastic force of the elastic member II gradually increases. The pressure is transmitted to the pressure detector through the circular block. When the pressure detector detects that the pressure rises to 10N, the electric push rod stops driving the pressing column to continue downward movement, so as to maintain a constant pressing force of 10N to continuously press the copper-plated spring. This can prevent the copper-plated spring from being deformed under pressure, so that the copper-plated spring and the substrate body are tightly attached, the welding point connection is firm and reliable, and the overall welding processing quality is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a positioning and clamping device for laser micro-welding of copper-plated spring sheets and substrates. Background Technology

[0002] Laser micro-welding of copper-plated spring contacts to substrates is a precision connection technology in the field of welding equipment manufacturing, using laser micro-welding to weld copper-plated spring contacts to substrates. It intelligently utilizes a high-energy focused laser beam to rapidly melt the copper plating layer of the spring contact and a localized portion of the substrate material within an extremely small spot size. After cooling, microscopic solder joints are formed, achieving mechanical fixation and electrical conductivity between the two. This process features low heat input and a narrow heat-affected zone, preventing burn-off of the spring contact plating and substrate deformation. It is suitable for operation in confined spaces, producing high-precision and consistent solder joints, ensuring that the elastic structure of the spring contact is not damaged by welding heat. It is widely used in connectors, battery modules, and precision electronic devices to meet the high-reliability conductivity and assembly requirements of micro-components.

[0003] When welding copper-plated springs to the substrate, a clamping device is needed to press and fix the copper-plated springs to the substrate to prevent the copper-plated springs from shifting or moving during the welding process, thereby improving the welding quality. However, the existing structure lacks an effective pressure detection method during the clamping operation, which can easily lead to excessive or insufficient clamping force. Excessive pressure can cause the copper-plated springs to deform under pressure, while insufficient pressure can result in poor workpiece adhesion, causing welding instability and ultimately reducing the reliability of the weld joint, directly affecting the overall welding process quality. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning and clamping device for laser micro-welding of copper-plated spring sheets and substrates, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A positioning and clamping device for laser micro-welding of copper-plated spring sheets and substrates includes: a body, a support frame mounted on the top surface of the body, a movable module one mounted on the side of the support frame, a laser welding machine mounted on the side of the movable module one, a fixture and a substrate body disposed above the body, and further includes: The positioning mechanism is located above the machine body. The positioning mechanism includes a concave frame that is slidably mounted on the top surface of the fixture. The top surface of the fixture is provided with a positioning groove. A motor is provided on one side of the concave frame. Two clamping plates are provided below the concave frame. The clamping mechanism is located above the machine body. The clamping mechanism includes a lifting plate located above the machine body. Two clamping bars are fixedly installed on the side of the lifting plate, and a clamping column is provided below the clamping bars. The testing mechanism is located above the machine body and includes a pressure detector located above the clamping column, with a circular block connected to the bottom of the pressure detector.

[0006] Preferably, a second movable module is fixedly installed on the top surface of the machine body. The top surface of the second movable module is fixedly connected to the bottom surface of the fixture. Two limiting shells are fixedly installed on the bottom surface of the fixture. Two limiting strips are fixedly installed on the top surface of the machine body. The outer wall of the limiting strips is slidably connected to the inner wall of the limiting shell. Multiple through holes are provided through the top surface of the base plate body.

[0007] Preferably, the inner wall of the positioning groove is slidably connected to the outer wall of the substrate body, a positioning post is fixedly installed on the inner wall of the positioning groove, the outer wall of the positioning post is slidably connected to the inner wall of the positioning groove, and two grooves are provided on the inner wall of the positioning groove.

[0008] Preferably, the top surface of the fixture is provided with two T-shaped grooves, and a T-shaped block is slidably installed on the inner wall of the T-shaped groove. Two support columns are fixedly installed on the side of the T-shaped block. One end of the support column slides through the T-shaped groove and extends into the groove. A clamping plate is fixedly installed on one end of the support column, and an L-shaped plate is fixedly installed on the top surface of the clamping plate.

[0009] Preferably, the concave frame is provided with two inclined grooves, the inner wall of the inclined grooves is slidably connected to the outer wall of the adjusting column, two T-shaped blocks are fixedly installed on the bottom surface of the concave frame, and two T-shaped grooves are provided on the top surface of the fixture. The outer wall of the T-shaped blocks is slidably connected to the inner wall of the T-shaped grooves, and the side of the T-shaped blocks is elastically connected to the inner wall of one side of the T-shaped grooves through an elastic element.

[0010] Preferably, the fixture has a through groove on its side, a fixed frame is fixedly installed on the bottom surface of the fixture, a base is fixedly installed on the inner wall of the fixed frame, the top surface of the base is fixedly connected to the bottom surface of the motor, a turntable is fixedly installed on the outer wall of the motor output rod, a protrusion is fixedly installed on the outer wall of the turntable, and the outer wall of the protrusion is slidably connected to the side of the concave frame.

[0011] Preferably, a fixing block is fixedly installed on the upper end of the motor output rod, and an electric telescopic rod is fixedly installed on the side of the fixing block, with one end of the electric telescopic rod fixedly connected to the side of the connecting block.

[0012] Preferably, an electric push rod is fixedly installed through the fixed block, the lower end of the electric push rod is fixedly connected to the top surface of the lifting plate, and multiple limit rods are fixedly installed on the top surface of the lifting plate. The upper end of the limit rod slides through the bottom surface of the connecting block and extends to the top of the connecting block.

[0013] Preferably, a cavity is provided through the side of the clamping strip, the inner wall of the cavity is fixedly connected to the top surface of the pressure detector, the upper end of the clamping column slides through the bottom surface of the clamping strip and is fixedly installed with a circular plate, and multiple limiting posts are slidably installed on the circular plate and the circular block, with both ends of the limiting posts fixedly connected to the inner wall of the cavity.

[0014] Preferably, a guide post one is fixedly installed on the bottom surface of the circular block, and a guide post two is fixedly installed on the top surface of the circular plate. An elastic element two is movably installed on the outer wall of the guide post one and the outer wall of the guide post two, and the two ends of the elastic element two abut against the surfaces of the circular block and the circular plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention uses an electric push rod to move a lifting plate, a pressing bar, and a pressing column downwards to press the copper-plated spring sheet. When the pressing column contacts and presses the copper-plated spring sheet, the copper-plated spring sheet generates a reverse force on the pressing column. The pressing column then drives the circular plate to squeeze the elastic element two. The elastic force of the elastic element two gradually increases and further acts on the circular block. The circular block transmits the pressure to the pressure detector. When the pressure detector detects that the pressure has risen to 10N, the electric push rod immediately stops driving the pressing column to continue to move downwards, thereby maintaining a constant pressing force of 10N on the copper-plated spring sheet. During the laser welding process of the copper-plated spring sheet, this pressure can prevent the copper-plated spring sheet from being deformed by pressure and can also make the copper-plated spring sheet fit tightly with the substrate body, ensuring that the weld connection is firm and reliable, and effectively improving the overall welding process quality. By starting the motor to drive the fixed block to rotate, the electric telescopic rod, connecting block and lower clamping column are rotated and adjusted to a suitable working angle. Then, the electric telescopic rod is started, driving the connecting block and clamping column to move directly above the copper-plated spring sheet. Then, the electric push rod is started, driving the lifting plate and clamping bar to drive the clamping column to feed downward. The working space is reserved between the two sets of clamping columns. While the clamping column clamps and positions the copper-plated spring sheet, it can be used for laser welding machine to perform welding, avoiding interference of the clamping structure with the optical path, effectively improving the welding alignment accuracy and the welding quality of the finished product. The initial positioning of the substrate body is achieved by setting the positioning groove and positioning post, which can limit the horizontal displacement of the substrate body and ensure the stability of the placement state. When the motor drives the turntable to rotate at a set angle, the protrusion on the turntable rotates and moves away from the concave frame, releasing the support and abutment constraint on the concave frame. At this time, the elastic element one releases the elastic force to push the T-block two and the concave frame to move. The inclined groove of the concave frame drives the adjusting post to slide. The adjusting post drives the T-block one and the support post to move synchronously. The support post drives the clamping plate and the L-shaped plate to move. The clamping plates on both sides realize the lateral clamping of the substrate body. The L-shaped plate limits the top surface of the substrate body. The combination of multiple positioning clamps effectively avoids the substrate body from shaking during the welding operation, ensures the welding alignment accuracy between the copper-plated spring and the substrate body, and significantly improves the welding processing quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the three-dimensional structure of the limiting shell of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded view of the three-dimensional structure of the concave frame of the present invention; Figure 5 For the present invention Figure 4Enlarged view at point B in the middle; Figure 6 This is a schematic cross-sectional view of the three-dimensional structure of the fixture of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the clamping strip of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the circular plate of the present invention; Figure 9 This is an exploded view of the three-dimensional structure of the clamping column of the present invention.

[0017] In the picture: 1. Body; 101. Support frame; 102. Moving module one; 103. Laser welding machine; 104. Moving module two; 105. Fixture; 106. Limiting shell; 107. Limiting strip; 108. Base plate body; 109. Through hole; 2. Positioning mechanism; 201. Positioning groove; 202. Positioning column; 203. Groove body; 204. T-slot one; 205. T-block one; 206. Support column; 207. Clamping plate; 208. L-shaped plate; 209. Adjusting column; 210. Concave frame; 211. Inclined groove; 212. T-block two; 213. T-slot two; 214. Elastic element one; 215. Fixing frame; 216. Base; 217. Motor; 218. Turntable; 219. Protrusion; 220. Through groove; 3. Clamping mechanism; 301. Fixing block; 302. Electric telescopic rod; 303. Connecting block; 304. Electric push rod; 305. Lifting plate; 306. Limiting rod; 307. Clamping strip; 308. Clamping column; 4. Testing mechanism; 401. Cavity; 402. Circular plate; 403. Circular block; 404. Limiting post; 405. Pressure detector; 406. Guide post one; 407. Guide post two; 408. Elastic element two. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figures 1-9As shown, this application provides a positioning and clamping device for laser micro-welding of copper-plated spring sheets and substrates, including: a body 1, a support frame 101 mounted on the top surface of the body 1, a moving module 102 mounted on the side of the support frame 101, a laser welding machine 103 mounted on the side of the moving module 102, the moving module 102 being able to drive the laser welding machine 103 to move along the X-axis and Z-axis, and a fixture 105 and a substrate body 108 disposed above the body 1.

[0021] Specifically, such as Figures 1-2 As shown, a second movable module 104 is fixedly installed on the top surface of the body 1. The top surface of the second movable module 104 is fixedly connected to the bottom surface of the fixture 105. Two limiting shells 106 are fixedly installed on the bottom surface of the fixture 105. Two limiting strips 107 are fixedly installed on the top surface of the body 1. The outer wall of the limiting strip 107 is slidably connected to the inner wall of the limiting shell 106. Multiple through holes 109 are provided through the top surface of the base plate body 108.

[0022] In this embodiment: the second moving module 104 is driven by a motor and a screw, which drives the fixture 105 to move along the Y axis. The limiting strip 107 limits the limiting shell 106, making the movement of the limiting shell 106 and the fixture 105 more stable.

[0023] The positioning mechanism 2 is located above the body 1. The positioning mechanism 2 includes a concave frame 210 that is slidably mounted on the top surface of the fixture 105. The top surface of the fixture 105 is provided with a positioning groove 201. A motor 217 is provided on one side of the concave frame 210. Two clamping plates 207 are provided below the concave frame 210. Specifically, such as Figure 4 As shown, the inner wall of the positioning groove 201 is slidably connected to the outer wall of the substrate body 108, and a positioning post 202 is fixedly installed on the inner wall of the positioning groove 201. The outer wall of the positioning post 202 is slidably connected to the inner wall of the positioning groove 201, and two grooves 203 are provided on the inner wall of the positioning groove 201.

[0024] In this embodiment: the positioning groove 201 and positioning post 202 are used to initially position the substrate body 108, which can limit the horizontal displacement of the substrate body 108 and ensure the stability of the placement state.

[0025] Specifically, such as Figures 4-6 As shown, the top surface of the fixture 105 is provided with two T-shaped grooves 204. A T-shaped block 205 is slidably installed on the inner wall of the T-shaped groove 204. Two support columns 206 are fixedly installed on the side of the T-shaped block 205. One end of the support column 206 slides through the T-shaped groove 204 and extends into the interior of the groove 203. A clamping plate 207 is fixedly installed on one end of the support column 206. An L-shaped plate 208 is fixedly installed on the top surface of the clamping plate 207.

[0026] In this embodiment: the T-shaped groove 204 limits the T-shaped block 205, making the movement of the T-shaped block 205, support column 206, clamping plate 207 and L-shaped plate 208 more stable. The clamping plates 207 on both sides achieve lateral clamping of the substrate body 108, and the L-shaped plate 208 limits and constrains the top surface of the substrate body 108. The combination of multiple positioning clamps effectively avoids the substrate body 108 from shaking during the welding operation, ensures the welding alignment accuracy between the copper-plated spring and the substrate body 108, and significantly improves the welding processing quality.

[0027] Specifically, such as Figures 4-5 As shown, the concave frame 210 is provided with two inclined grooves 211. The inner wall of the inclined groove 211 is slidably connected to the outer wall of the adjusting column 209. Two T-shaped blocks 212 are fixedly installed on the bottom surface of the concave frame 210. Two T-shaped grooves 213 are provided on the top surface of the fixture 105. The outer wall of the T-shaped block 212 is slidably connected to the inner wall of the T-shaped groove 213. The side of the T-shaped block 212 is elastically connected to the inner wall of one side of the T-shaped groove 213 through an elastic element 214.

[0028] In this embodiment: the T-shaped groove 213 limits the movement of the T-shaped block 212, making the movement of the T-shaped block 212 and the concave frame 210 more stable. When the concave frame 210 moves, the adjusting column 209 moves through the inclined groove 211, which in turn drives the clamping plate 207 to open and close. The elastic element 214 applies elastic force to the T-shaped block 212.

[0029] Specifically, such as Figures 4-7 As shown, a through groove 220 is provided on the side of the fixture 105, a fixed frame 215 is fixedly installed on the bottom surface of the fixture 105, a base 216 is fixedly installed on the inner wall of the fixed frame 215, the top surface of the base 216 is fixedly connected to the bottom surface of the motor 217, a turntable 218 is fixedly installed on the outer wall of the output rod of the motor 217, a protrusion 219 is fixedly installed on the outer wall of the turntable 218, and the outer wall of the protrusion 219 is slidably connected to the side of the concave frame 210.

[0030] In this embodiment: when the turntable 218 is rotated by the motor 217, the protrusion 219 on the turntable 218 rotates. When the protrusion 219 moves away from the concave frame 210, the elastic element 214 pushes the T-shaped block 212 and the concave frame 210 to move. The inclined groove 211 drives the adjusting column 209 and the clamping plate 207 to move and clamp and fix the substrate body 108. When the protrusion 219 abuts against the concave frame 210, the concave frame 210 moves in the opposite direction. At this time, the clamping plate 207 is opened.

[0031] The clamping mechanism 3 is located above the body 1. The clamping mechanism 3 includes a lifting plate 305 located above the body 1. Two clamping strips 307 are fixedly installed on the side of the lifting plate 305. A clamping column 308 is provided below the clamping strips 307. Specifically, such as Figure 7 As shown, a fixing block 301 is fixedly installed on the upper end of the output rod of motor 217, and an electric telescopic rod 302 is fixedly installed on the side of the fixing block 301. One end of the electric telescopic rod 302 is fixedly connected to the side of the connecting block 303.

[0032] In this embodiment: the position of the clamping column 308 can be adjusted by the motor 217 and the electric telescopic rod 302, so that the clamping column 308 is accurately positioned above the copper-plated spring sheet, which facilitates precise clamping of the copper-plated spring sheet.

[0033] Specifically, such as Figure 7 As shown, an electric push rod 304 is fixedly installed on the fixed block 301. The lower end of the electric push rod 304 is fixedly connected to the top surface of the lifting plate 305. Multiple limit rods 306 are fixedly installed on the top surface of the lifting plate 305. The upper end of the limit rod 306 slides through the bottom surface of the connecting block 303 and extends to the top of the connecting block 303.

[0034] In this embodiment: the electric push rod 304 drives the lifting plate 305 to move, which in turn drives the pressing strip 307 and the pressing column 308 to move. The pressing column 308 presses and fixes the copper-plated spring sheet, thereby improving the welding quality.

[0035] The detection mechanism 4 is located above the body 1. The detection mechanism 4 includes a pressure detector 405 located above the clamping column 308. A circular block 403 is connected to the bottom surface of the pressure detector 405.

[0036] Specifically, such as Figures 8-9 As shown, a cavity 401 is provided through the side of the clamping strip 307. The inner wall of the cavity 401 is fixedly connected to the top surface of the pressure detector 405. The upper end of the clamping column 308 slides through the bottom surface of the clamping strip 307 and is fixedly installed with a circular plate 402. Multiple limiting posts 404 are slidably installed on the circular plate 402 and the circular block 403. The two ends of the limiting posts 404 are fixedly connected to the inner wall of the cavity 401.

[0037] In this embodiment: the limiting post 404 limits the circular plate 402 and the circular block 403, making the pressing post 308 and the circular plate 402 move more stably and less prone to deviation.

[0038] Specifically, such as Figures 8-9 As shown, a guide post 406 is fixedly installed on the bottom surface of the circular block 403, and a guide post 407 is fixedly installed on the top surface of the circular plate 402. An elastic element 408 is movably installed on the outer wall of the guide post 406 and the outer wall of the guide post 407. The two ends of the elastic element 408 abut against the surfaces of the circular block 403 and the circular plate 402.

[0039] In this embodiment: after the clamping column 308 contacts and presses against the copper-plated spring sheet, the copper-plated spring sheet will generate a reverse force on the clamping column 308. The clamping column 308 then drives the circular plate 402 to squeeze the elastic element 408. The elastic force of the elastic element 408 gradually increases and further acts on the circular block 403. The circular block 403 transmits the pressure to the pressure detector 405. When the pressure detector 405 detects that the pressure has risen to 10N, the electric push rod 304 immediately stops driving the clamping column 308 to continue to descend, thereby maintaining a constant clamping force of 10N to continuously press the copper-plated spring sheet. During the laser welding process of the copper-plated spring sheet, this pressure can prevent the copper-plated spring sheet from being deformed by pressure and can also make the copper-plated spring sheet fit tightly with the substrate body, ensuring that the weld connection is firm and reliable, and effectively improving the overall welding process quality.

[0040] Specifically, the solution is as follows: The basic plate 108 is placed in the positioning groove 201. The positioning post 202 and the through hole 109 cooperate to position the substrate body 108. The moving module 102 is activated, moving the fixture 105 and the substrate body 108 below the laser welding machine 103. The motor 217 is activated. When the motor 217 drives the turntable 218 and the protrusion 219 to rotate at a small angle, the protrusion 219 rotates and moves away from the concave frame 210, releasing the support and contact constraint on the concave frame 210. At this time, the elastic element 214 releases its elastic force, pushing the T-block 212 and the concave frame 210 to move. The inclined groove 211 of the concave frame 210 is driven to adjust... The column 209 slides, and the adjusting column 209 drives the T-block 205 and the support column 206 to move synchronously. The support column 206 drives the clamping plate 207 and the L-shaped plate 208 to move. The clamping plates 207 on both sides achieve lateral clamping of the substrate body 108, and the L-shaped plate 208 limits and constrains the top surface of the substrate body 108. The multi-positioning clamping works together to effectively prevent the substrate body 108 from shaking during the welding operation. The motor 217 continues to drive the fixing block 301 to rotate, driving the electric telescopic rod 302, the connecting block 303 and the lower pressing column 308 to rotate and adjust to a suitable working angle. Then, the electric telescopic rod 302 is started to drive... The connecting block 303, along with the clamping column 308, is moved to directly above the copper-plated spring sheet. Then, the electric push rod 304 is activated, driving the lifting plate 305 and the clamping bar 307 to push the clamping column 308 downward. A working space is reserved between the two sets of clamping columns 308. While the clamping column 308 clamps the positioning copper-plated spring sheet, the copper-plated spring sheet exerts a reverse force on the clamping column 308. The clamping column 308 then drives the circular plate 402 to squeeze the elastic element 408. The elastic force of the elastic element 408 gradually increases and further acts on the circular block 403. The circular block 403 transmits the pressure to the pressure detector 405. When the pressure detector 405 detects the pressure... When the force rises to 10N, the electric push rod 304 immediately stops driving the clamping column 308 to continue descending, thereby maintaining a constant clamping force of 10N to continuously press the copper-plated spring sheet. This pressure can prevent the copper-plated spring sheet from being deformed by pressure and can also make the copper-plated spring sheet fit tightly with the substrate body 108. The moving module 102 is opened, driving the laser welding machine 103 to weld the copper-plated spring sheet and the substrate body 108. After the welding is completed, the motor 217 drives the turntable 218 and the protrusion 219 to rotate to the initial position, and the clamping column 308 rotates to the initial position. The clamping plate 207 is opened, and the welded copper-plated spring sheet and the substrate body 108 can be removed.

[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0042] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A positioning and clamping device for laser micro-welding of copper-plated spring sheets to substrates, comprising: The machine body (1) has a support frame (101) mounted on its top surface, a movable module (102) mounted on the side of the support frame (101), a laser welding machine (103) mounted on the side of the movable module (102), and a fixture (105) and a substrate body (108) disposed above the machine body (1). The machine body is characterized by further comprising: Positioning mechanism (2), the positioning mechanism (2) is located above the body (1), the positioning mechanism (2) includes a concave frame (210) slidably mounted on the top surface of the fixture (105), the top surface of the fixture (105) is provided with a positioning groove (201), a motor (217) is provided on one side of the concave frame (210), and two clamping plates (207) are provided below the concave frame (210); A pressing mechanism (3) is provided above the machine body (1). The pressing mechanism (3) includes a lifting plate (305) located above the machine body (1). Two pressing strips (307) are fixedly installed on the side of the lifting plate (305). A pressing column (308) is provided below the pressing strips (307). The detection mechanism (4) is located above the body (1). The detection mechanism (4) includes a pressure detector (405) located above the pressing column (308). A round block (403) is connected to the bottom surface of the pressure detector (405).

2. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 1, characterized in that, The top surface of the body (1) is fixedly installed with a second movable module (104). The top surface of the second movable module (104) is fixedly connected to the bottom surface of the fixture (105). The bottom surface of the fixture (105) is fixedly installed with two limiting shells (106). The top surface of the body (1) is fixedly installed with two limiting strips (107). The outer wall of the limiting strip (107) is slidably connected to the inner wall of the limiting shell (106). The top surface of the substrate body (108) is provided with multiple through holes (109).

3. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 1, characterized in that, The inner wall of the positioning groove (201) is slidably connected to the outer wall of the substrate body (108). A positioning post (202) is fixedly installed on the inner wall of the positioning groove (201). The outer wall of the positioning post (202) is slidably connected to the inner wall of the positioning groove (201). Two grooves (203) are provided on the inner wall of the positioning groove (201).

4. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 3, characterized in that, The fixture (105) has two T-shaped grooves (204) on its top surface. A T-shaped block (205) is slidably installed on the inner wall of the T-shaped groove (204). Two support columns (206) are fixedly installed on the side of the T-shaped block (205). One end of the support column (206) slides through the T-shaped groove (204) and extends into the groove body (203). A clamping plate (207) is fixedly installed on one end of the support column (206). An L-shaped plate (208) is fixedly installed on the top surface of the clamping plate (207).

5. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 4, characterized in that, The concave frame (210) is provided with two inclined grooves (211). The inner wall of the inclined groove (211) is slidably connected to the outer wall of the adjusting column (209). Two T-shaped blocks (212) are fixedly installed on the bottom surface of the concave frame (210). Two T-shaped grooves (213) are provided on the top surface of the fixture (105). The outer wall of the T-shaped block (212) is slidably connected to the inner wall of the T-shaped groove (213). The side of the T-shaped block (212) is elastically connected to the inner wall of one side of the T-shaped groove (213) through an elastic element (214).

6. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 5, characterized in that, The fixture (105) has a through groove (220) on its side. A fixed frame (215) is fixedly installed on the bottom surface of the fixture (105). A base (216) is fixedly installed on the inner wall of the fixed frame (215). The top surface of the base (216) is fixedly connected to the bottom surface of the motor (217). A turntable (218) is fixedly installed on the outer wall of the output rod of the motor (217). A protrusion (219) is fixedly installed on the outer wall of the turntable (218). The outer wall of the protrusion (219) is slidably connected to the side of the concave frame (210).

7. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 1, characterized in that, A fixing block (301) is fixedly installed on the upper end of the output rod of the motor (217), and an electric telescopic rod (302) is fixedly installed on the side of the fixing block (301). One end of the electric telescopic rod (302) is fixedly connected to the side of the connecting block (303).

8. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 7, characterized in that, An electric push rod (304) is fixedly installed on the fixed block (301). The lower end of the electric push rod (304) is fixedly connected to the top surface of the lifting plate (305). A plurality of limiting rods (306) are fixedly installed on the top surface of the lifting plate (305). The upper end of the limiting rod (306) slides through the bottom surface of the connecting block (303) and extends to the top of the connecting block (303).

9. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 1, characterized in that, A cavity (401) is provided through the side of the clamping strip (307). The inner wall of the cavity (401) is fixedly connected to the top surface of the pressure detector (405). The upper end of the clamping column (308) slides through the bottom surface of the clamping strip (307) and is fixedly installed with a circular plate (402). Multiple limiting columns (404) are slidably installed on the circular plate (402) and the circular block (403). The two ends of the limiting columns (404) are fixedly connected to the inner wall of the cavity (401).

10. The positioning and clamping device for laser micro-welding of copper-plated spring sheet and substrate according to claim 9, characterized in that, The bottom surface of the circular block (403) is fixedly equipped with a guide post one (406), and the top surface of the circular plate (402) is fixedly equipped with a guide post two (407). The outer walls of the guide post one (406) and the outer walls of the guide post two (407) are movably equipped with an elastic element two (408). The two ends of the elastic element two (408) abut against the surfaces of the circular block (403) and the circular plate (402).

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