Novel welding tool
By designing a new type of welding fixture with contoured grooves, positioning posts, and elastic clips, the problems of complex structure and low efficiency of existing PCB welding fixtures have been solved. This enables rapid placement and clamping, improves welding efficiency and quality, and is suitable for products of different thicknesses and sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LIKR AIRLINES AUTOMOBILE TECHNOLOGY CO LTD
- Filing Date
- 2025-03-19
- Publication Date
- 2026-05-19
AI Technical Summary
Existing PCB welding fixtures are complex in structure, difficult to operate, and have low welding efficiency, making it difficult to meet the flexibility and convenience requirements of the Industry 4.0 era.
A novel welding fixture was designed, comprising a base, support columns, top pressing components, and elastic components. Through structures such as contour grooves, positioning columns, elastic buckles, and isolation grids, it enables rapid placement and clamping of welded parts, prevents floating, and adapts to products of different thicknesses and dimensions.
It enables rapid placement and clamping of welded parts, ensuring welding quality, improving welding efficiency, and features a simple structure, easy operation, reduced production costs, and convenient maintenance.
Smart Images
Figure CN224254551U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a PCB board welding structure, and more specifically, to a novel welding fixture. Background Technology
[0002] With the advent of Industry 4.0 and the era of intelligent manufacturing, the flexibility and convenience of equipment have become increasingly important. For PCB welding fixtures, the fixtures should be easy to operate, efficient, and produce good welding quality; however, existing PCB fixtures are not only complex in structure but also difficult to operate, making them unsuitable for current production requirements.
[0003] For example, Chinese Patent Publication No. CN219402801U, published on July 25, 2023, describes a utility model entitled "Welding Fixture for Sampling Sheets of Soft-Pack Batteries." It includes a supporting component, a pressing component, and a driving device. The supporting component carries the busbar support and the sampling nickel sheet to be pressed together. The driving device is connected to the pressing component and drives it to press the sampling nickel sheet and the busbar support together. This solution provides pre-welding positioning of the sampling nickel sheet relative to the busbar support, thus avoiding problems such as weld penetration and incomplete welding caused by insufficient fit, and improving welding quality. However, this solution has a complex structure and is somewhat complicated to use. Although it ensures welding quality, its welding production efficiency is low. Utility Model Content
[0004] This invention overcomes the problems of complex structure and low efficiency of existing welding fixtures, and provides a new type of welding fixture. This solution has a simple structure, enabling rapid placement and clamping of the workpiece on the fixture, preventing the workpiece from floating during welding, and is easy to operate. It not only ensures welding quality but also improves welding efficiency.
[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a novel welding fixture, including a base, a placement groove on the base and support columns symmetrically arranged around the outer ring of the placement groove, a pressing assembly on the support columns, the pressing assembly including a cover plate and a cover plate buckle, the cover plate buckle being disposed on the support columns, and the cover plate being disposed on the support columns and arranged corresponding to the position of the cover plate buckle; an elastic component is provided on the side of the cover plate facing the placement groove. The placement groove is a product-contouring groove for placing the product to be welded, the support columns are mainly used to support the pressing assembly, and the pressing assembly is used to press and hold the product to be welded on the placement groove. Specifically, the cover plate buckle can press the cover plate tightly to prevent the cover plate from loosening, while the elastic component on the cover plate can press the product to be welded into the placement groove to prevent the product from floating and shifting during the welding process, thus affecting the welding quality.
[0006] Preferably, the elastic component includes a top pressure rod, the end of which passes through the cover plate away from the placement groove and has a first limiting portion, and the end of which is near the placement groove and has a second limiting portion. A first elastic element is provided on the top pressure rod and on the side of the pressure plate near the placement groove. The first limiting portion prevents the top pressure rod from falling through the cover plate, while the second limiting portion allows the first elastic element to be positioned on the top pressure rod and provide elasticity. When the top pressure rod presses against or contacts the product to be welded, the top pressure rod slides vertically on the cover plate and compresses the first elastic element, ensuring that the top pressure rod presses firmly against the product to be welded.
[0007] Preferably, the placement groove is provided with at least two sets of positioning posts. The positioning posts on the placement groove are used to position the product to be welded and limit the product from shaking around.
[0008] Preferably, the base is further provided with at least two sets of elastic buckles located on the outer ring of the placement groove. The elastic buckles are rotatably connected to the base and are provided with a first reset member. The elastic buckles are used to press the edges of the product to be welded, preventing the edges of the product to be welded from being uneven; the first reset member on the elastic buckle can cause the elastic buckle to reset, so that the elastic buckle automatically rotates to the surface of the product to be welded.
[0009] Preferably, the elastic buckle is rotatably connected to the base via a fixed shaft. The fixed shaft has a third limiting portion, and a second elastic element is located on the fixed shaft on the side of the elastic buckle furthest from the base. The other side of the second elastic element abuts against the third limiting portion. The fixed shaft connects the elastic buckle and the base, while the second elastic element applies pressure to the elastic buckle. This ensures that the elastic buckle can press firmly against the product to be welded, and also allows the elastic buckle to adapt to products of different thicknesses and dimensions.
[0010] Preferably, the cover plate snap fastener includes a connecting part and a pressing part. The support column has a snap fastener groove arranged axially along the support column on the side away from the placement groove. The connecting part is located within the snap fastener groove, and the pressing part is located on the upper surface of the support column. The cover plate snap fastener is connected to the snap fastener groove of the support column through the connecting part, and the pressing part presses the cover plate tightly.
[0011] Preferably, the snap-fit groove is provided with a guide groove arranged along the axial direction of the support column. The connecting part is slidably and rotatably connected to the guide groove, and a second reset member is provided between the connecting part and the snap-fit groove. The guide groove allows the connecting part of the cover plate snap-fit to slide vertically, and the second reset member ensures that the cover plate snap-fit can apply a clamping force to the cover plate, ensuring the positioning effect of the cover plate; at the same time, the cover plate snap-fit and the snap-fit groove are rotatably connected, which facilitates the placement of the cover plate on the support column.
[0012] Preferably, the placement slot is also provided with an isolation barrier. The isolation barrier in the placement slot can prevent bridging during the soldering process and avoid bridging of pins on the PCB board.
[0013] Preferably, the cover plate has a top-pressing groove on the side away from the placement groove, and the top-pressing groove is aligned with the cover plate snap fastener position. The top-pressing groove on the cover plate can match the cover plate snap fastener, and when the cover plate snap fastener is pressed onto the top-pressing groove, it can also prevent the cover plate from moving horizontally, ensuring the positioning effect of the cover plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) It can realize the rapid placement and clamping of the welded parts on the tooling, and prevent the welded parts from floating up during the welding process; (2) It has a simple structure and simple operation, which not only ensures the welding quality, but also improves the welding efficiency; (3) It has better clamping and positioning effects, and can adapt to the clamping and positioning of products to be welded with different thicknesses and sizes; (4) It has lower production and manufacturing costs and is more convenient for later maintenance. Attached Figure Description
[0015] Figure 1 This is an exploded view of the present invention.
[0016] Figure 2 This is a schematic diagram of the structure on the base of this utility model.
[0017] Figure 3 This is a top view of the base of this utility model.
[0018] Figure 4 This is a schematic diagram of the arrangement of elastic components on the cover plate of this utility model.
[0019] Figure 5 This is a schematic diagram of one structure of the cover plate snap fastener of this utility model.
[0020] Figure 6 This is a schematic diagram of another structure of the cover plate snap fastener of this utility model.
[0021] In the diagram: 1. Base, 2. Placement slot, 3. Support column, 4. Cover plate, 5. Cover plate buckle, 5.1. Connecting part, 5.2. Pressing part, 6. Elastic component, 6.1. First limiting part, 6.2. Second limiting part, 6.3. Top pressure rod, 6.4. First elastic element, 7. Positioning column, 8. Elastic buckle, 9. Fixed shaft, 10. Third limiting part, 11. Second elastic element, 12. Buckle groove, 13. Guide groove, 14. Isolation fence, 15. Top pressure groove, 16. Product to be welded, 17. Positioning hole, 18. Toggle rod, 19. Guide surface. Detailed Implementation
[0022] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] Example 1: As Figures 1 to 5 The novel welding fixture shown includes a base 1, which is a rectangular thin plate structure. A placement groove 2 is provided on the upper surface of the base 1. Two sets of support columns 3 are arranged symmetrically about the placement groove 2 around the placement groove 2. A pressing assembly is arranged on the top of the support columns 3. The pressing assembly includes a cover plate 4 and a cover plate buckle 5. The cover plate 4 is independent of the support column 3 and is arranged on the upper surface of the support column 3. The cover plate buckle 5 is connected to the support column 3 and can press the cover plate 4 to prevent its position from changing. An elastic component 6 is also arranged at the bottom of the cover plate 4. The elastic component 6 can press the product 16 to be welded placed in the placement groove 2, so that the product 16 to be welded is pressed tightly in the placement groove 2, preventing the product 16 to be welded from floating up during the welding process.
[0024] Specific examples Figure 5 As shown, each support column 3 is provided with a cover plate buckle 5. The cover plate buckle 5 includes a connecting part 5.1 and a pressing part 5.2. A buckle groove 12 is provided on the side of the support column 3 away from the placement groove 2. The buckle groove 12 is arranged in a vertical direction. The connecting part 5.1 of the cover plate buckle 5 is arranged in the buckle groove 12. In this embodiment, the bottom of the connecting part 5.1 of the cover plate buckle 5 is connected to the buckle groove 12 as a whole. The axial side of the connecting part 5.1 of the cover plate buckle 5 is not connected to the buckle groove 12. The cover plate buckle 5 is made of flexible material and can deform to a certain extent. The cover plate 4 is a rectangular thin plate structure. The pressing part 5.2 on the cover plate buckle 5 is slightly higher than the upper surface of the support column 3 and protrudes from the center position of the upper surface of the support column 3. The distance between the pressing part 5.2 and the upper surface of the support column 3 is adapted to the thickness of the cover plate 4. In this way, the pressing part 5.2 of the cover plate buckle 5 can press the cover plate 4 onto the support column 3. When it is necessary to place the cover plate 4 on the support column 3, the pressing part of the cover plate buckle 5 is moved away from the placement groove 2, so that the cover plate buckle 5 deforms. At this time, the distance between the tops of the two cover plate buckles 5 increases, and the cover plate 4 can be placed on the support column 3 between the two cover plate buckles 5. Then, the pressing part 5.2 of the cover plate buckle 5 is released, and the pressing part 5.2 resets to press the cover plate 4.
[0025] It should be noted that a guide surface 19 is also provided on the pressing part 5.2 of the cover plate buckle 5. The guide surface 19 is an inclined surface, which guides the downward movement of the cover plate 4 on the pressing part 5.2, which is beneficial for the cover plate 4 to be arranged on the support column 3. Therefore, the cover plate 4 can also be directly arranged on the guide surface 19 of the pressing part 5.2, and then the cover plate 4 is pressed down. Under the action of the guide surface 19, the cover plate 4 presses the pressing part 5.2 of the cover plate buckle 5 to both sides, so that the pressing part 5.2 moves to both sides until the cover plate 4 enters the gap between the pressing part 5.2 and the upper surface of the support column 3. Then the cover plate buckle 5 automatically resets and fastens the cover plate 4. Among them, a top pressure groove 15 is also provided on the upper surface of the cover plate 4. The size of the top pressure groove 15 is adapted to the size of the pressing part 5.2, and the position of the top pressure groove 15 corresponds to the position of the pressing part 5.2. When the cover plate 4 is arranged on the support column 3, the pressing part 5.2 and the top pressure groove 15 cooperate to effectively prevent the cover plate 4 from moving in the vertical and horizontal directions.
[0026] The elastic component 6 on the cover plate 4 includes a pressing rod 6.3 and a first elastic element 6.4. The pressing rod 6.3 extends through the cover plate 4, with a first limiting part 6.1 at its top and a second limiting part 6.2 at its bottom. The first limiting part 6.1 prevents the pressing rod 6.3 from falling off the cover plate 4. The first elastic element 6.4 is fitted onto the bottom of the pressing rod 6.3. Specifically, the first elastic element 6.4 is a circular spring structure. The bottom of the first elastic element 6.4 abuts against the second limiting part 6.2, and the top of the first elastic element 6.4 abuts against the lower surface of the cover plate 4. When the cover plate 4 is placed on the support column 3, the bottom of the pressing rod 6.3 (the second limiting part 6.2) in the elastic component 6 will press firmly against the upper surface of the product 16 to be welded, thereby compressing the product. In order to ensure that the top pressure rod 6.3 presses the product 16 to be welded, it is necessary to ensure that the first limiting part 6.1 on the top pressure rod 6.3 and the upper surface of the cover plate 4 are in a separated state.
[0027] The placement slot 2 on the base 1 is a contoured slot for the product 16 to be soldered, used to place the product 16 and achieve a preliminary positioning effect. At least two positioning posts 7 are arranged in the placement slot 2, located at two diagonal positions within the placement slot 2. The PCB board product 16 to be soldered is generally provided with positioning holes 17, which can cooperate with the positioning posts 7 to achieve good positioning of the product 16 to be soldered and prevent the product 16 to be soldered from shaking around.
[0028] Elastic buckles 8 are also provided on the outer edge of the placement groove 2. Specifically, two sets of elastic buckles 8 are arranged symmetrically about the placement groove 2. The elastic buckles 8 and the base 1 are connected by a fixed shaft 9. Specifically, the bottom of the fixed shaft 9 is fixedly connected to the base 1, and the elastic buckles 8 are rotatably connected to the fixed shaft 9. A third limiting part 10 is provided on the top of the fixed shaft 9. A second elastic element 11 is provided between the third limiting part 10 and the elastic buckle 8, so that the second elastic element 11 can apply a downward pressing force to the elastic buckles 8. When the product to be welded 16 needs to be placed in the placement groove 2, the elastic buckles 8 are first rotated to a position outside the placement groove 2, so that the product to be welded 16 can be placed in the placement groove 2. Then, the elastic buckles 8 are rotated back to the area where the placement groove 2 is located and located on the upper surface of the product to be welded 16, so that the product to be welded 16 can be pressed tightly in the placement groove 2. With the top pressing effect of the elastic component 6, the problem of the product to be welded 16 floating during the welding process is effectively prevented.
[0029] In order to better rotate the elastic buckle 8, a lever 18 is arranged at the end of the elastic buckle 8 away from the fixed shaft 9. The lever 18 is arranged vertically. In order to reduce the operation of the elastic buckle 8, a first reset member (not shown in the figure) can also be arranged between the elastic buckle 8 and the base 1. Specifically, the first reset member can be a torsion spring. In this way, when the elastic buckle 8 is rotated to the outside of the placement groove 2, the elastic buckle 8 is released and the elastic buckle 8 can automatically reset and return to the area where the placement groove 2 is located.
[0030] It should also be noted that since the second elastic element 11 is located at the top of the elastic buckle 8, the second elastic element 11 can apply a downward force to the elastic buckle 8, so that the elastic buckle 8 presses the product to be welded 16 tightly. In addition, the position of the elastic buckle 8 can also be adjusted according to the thickness of the product to be welded 16. Specifically, the elastic buckle 8 is lifted upward to compress the second elastic element 11. After the product to be welded 16 is arranged, the elastic buckle 8 is released. Under the action of the second elastic element 11, the elastic buckle 8 will press tightly on the upper surface of the product to be welded 16.
[0031] An isolation barrier 14 is also arranged in the placement slot 2. The isolation barrier 14 needs to be arranged according to the pin position of the PCB board. The isolation barrier 14 can prevent bridging during the soldering process and avoid bridging of the pins on the PCB board.
[0032] Example 2: As Figures 1 to 4 as well as Figure 6The novel welding fixture shown includes a base 1, which is a rectangular thin plate structure. A placement groove 2 is provided on the upper surface of the base 1. Two sets of support columns 3 are arranged symmetrically about the placement groove 2 around the placement groove 2. A pressing assembly is arranged on the top of the support columns 3. The pressing assembly includes a cover plate 4 and a cover plate buckle 5. The cover plate 4 is independent of the support column 3 and is arranged on the upper surface of the support column 3. The cover plate buckle 5 is connected to the support column 3 and can press the cover plate 4 to prevent its position from changing. An elastic component 6 is also arranged at the bottom of the cover plate 4. The elastic component 6 can press the product 16 to be welded placed in the placement groove 2, so that the product 16 to be welded is pressed tightly in the placement groove 2, preventing the product 16 to be welded from floating up during the welding process.
[0033] Specific examples Figure 6 As shown, each support column 3 is provided with a cover plate buckle 5. The cover plate buckle 5 includes a connecting part 5.1 and a pressing part 5.2. A buckle groove 12 is provided on the side of the support column 3 away from the placement groove 2. The buckle groove 12 is arranged vertically. Guide grooves 13 are arranged on both sides of the axial direction of the buckle groove 12. Cylindrical guide blocks (not shown in the figure) are provided on both sides of the connecting part 5.1 of the cover plate buckle 5. The guide blocks can slide and rotate in the guide groove 13. Thus, the cover plate buckle 5 can move vertically in the buckle groove 12 and can also rotate relative to the support column 3. It should be noted that a third reset member (not shown in the figure) is also provided between the connecting part 5.1 and the guide groove 13. The third reset member applies a pulling force to the cover plate buckle 5 and enables the cover plate buckle 5 to be located at the bottom of the buckle groove 12. The cover plate 4 is a rectangular thin plate structure. The clamping part 5.1 on the cover plate buckle 5 can be tightly attached to the upper surface of the support column 3 or maintain a certain distance. When the cover plate 4 needs to be placed, simply lift the cover plate buckle 5 upwards so that the clamping part 5.2 on the cover plate buckle 5 is higher than the upper surface of the support column 3 and the distance between the clamping part 5.2 and the upper surface of the support column 3 is adapted to the thickness of the cover plate 4. Then rotate the cover plate buckle 5 so that the clamping part 5.2 of the cover plate buckle 5 is away from the upper surface of the support column 3. In this way, the cover plate 4 can be placed on the two support columns 3. Then release the cover plate buckle 5. Under the action of the second reset member, the cover plate buckle 5 moves downwards while the clamping part 5.2 rotates towards the upper surface of the support column 3 until the cover plate buckle 5 is fully reset. In this way, the clamping part 5.2 of the cover plate buckle 5 can press the cover plate 4 tightly onto the support column 3. The clamping part protrudes from the center position of the upper surface of the support column 3. This approach allows the cover plate buckle 5 to press against cover plates 4 of different thicknesses, thus improving the applicability of the solution.
[0034] It should be noted that a guide surface 19 is also provided on the pressing part 5.2 of the cover plate buckle 5. The guide surface 19 is an inclined surface, which guides the downward movement of the cover plate 4 on the pressing part 5.2, which is beneficial for the cover plate 4 to be arranged on the support column 3. Therefore, the cover plate 4 can also be directly arranged on the guide surface 19 of the pressing part 5.2, and then the cover plate 4 is pressed down. Under the action of the guide surface 19, the cover plate 4 presses the pressing part 5.2 of the cover plate buckle 5 to both sides, so that the pressing part 5.2 moves to both sides. Then the pressing part 5.2 is raised, so that the cover plate 4 enters the gap between the pressing part 5.2 and the upper surface of the support column 3. Then the cover plate buckle 5 automatically resets and fastens the cover plate 4. Among them, a top pressure groove 15 is also provided on the upper surface of the cover plate 4. The size of the top pressure groove 15 is adapted to the size of the pressing part 5.2, and the position of the top pressure groove 15 corresponds to the position of the pressing part 5.2. When the cover plate 4 is arranged on the support column 3, the pressing part 5.2 and the top pressure groove 15 cooperate to effectively prevent the cover plate 4 from moving in the vertical and horizontal directions.
[0035] The elastic component 6 on the cover plate 4 includes a pressing rod 6.3 and a first elastic element 6.4. The pressing rod 6.3 extends through the cover plate 4, with a first limiting part 6.1 at its top and a second limiting part 6.2 at its bottom. The first limiting part 6.1 prevents the pressing rod 6.3 from falling off the cover plate 4. The first elastic element 6.4 is fitted onto the bottom of the pressing rod 6.3. Specifically, the first elastic element 6.4 is a circular spring structure. The bottom of the first elastic element 6.4 abuts against the second limiting part 6.2, and the top of the first elastic element 6.4 abuts against the lower surface of the cover plate 4. When the cover plate 4 is placed on the support column 3, the bottom of the pressing rod 6.3 (the second limiting part 6.2) in the elastic component 6 will press firmly against the upper surface of the product 16 to be welded, thereby compressing the product. In order to ensure that the top pressure rod 6.3 presses the product 16 to be welded, it is necessary to ensure that the first limiting part 6.1 on the top pressure rod 6.3 and the upper surface of the cover plate 4 are in a separated state.
[0036] The placement slot 2 on the base 1 is a contoured slot for the product 16 to be soldered, used to place the product 16 and achieve a preliminary positioning effect. At least two positioning posts 7 are arranged in the placement slot 2, located at two diagonal positions within the placement slot 2. The PCB board product 16 to be soldered is generally provided with positioning holes 17, which can cooperate with the positioning posts 7 to achieve good positioning of the product 16 to be soldered and prevent the product 16 to be soldered from shaking around.
[0037] Elastic buckles 8 are also provided on the outer edge of the placement groove 2. Specifically, two sets of elastic buckles 8 are arranged symmetrically about the placement groove 2. The elastic buckles 8 and the base 1 are connected by a fixed shaft 9. Specifically, the bottom of the fixed shaft 9 is fixedly connected to the base 1, and the elastic buckles 8 are rotatably connected to the fixed shaft 9. A third limiting part 10 is provided on the top of the fixed shaft 9. A second elastic element 11 is provided between the third limiting part 10 and the elastic buckle 8, so that the second elastic element 11 can apply a downward pressing force to the elastic buckles 8. When the product to be welded 16 needs to be placed in the placement groove 2, the elastic buckles 8 are first rotated to a position outside the placement groove 2, so that the product to be welded 16 can be placed in the placement groove 2. Then, the elastic buckles 8 are rotated back to the area where the placement groove 2 is located and located on the upper surface of the product to be welded 16, so that the product to be welded 16 can be pressed tightly in the placement groove 2. With the top pressing effect of the elastic component 6, the problem of the product to be welded 16 floating during the welding process is effectively prevented.
[0038] In order to better rotate the elastic buckle 8, a lever 18 is arranged at the end of the elastic buckle 8 away from the fixed shaft 9. The lever 18 is arranged vertically. In order to reduce the operation of the elastic buckle 8, a first reset member (not shown in the figure) can also be arranged between the elastic buckle 8 and the base 1. Specifically, the first reset member can be a torsion spring. In this way, when the elastic buckle 8 is rotated to the outside of the placement groove 2, the elastic buckle 8 is released and the elastic buckle 8 can automatically reset and return to the area where the placement groove 2 is located.
[0039] It should also be noted that since the second elastic element 11 is located at the top of the elastic buckle 8, the second elastic element 11 can apply a downward force to the elastic buckle 8, so that the elastic buckle 8 presses the product to be welded 16 tightly. In addition, the position of the elastic buckle 8 can also be adjusted according to the thickness of the product to be welded 16. Specifically, the elastic buckle 8 is lifted upward to compress the second elastic element 11. After the product to be welded 16 is arranged, the elastic buckle 8 is released. Under the action of the second elastic element 11, the elastic buckle 8 will press tightly on the upper surface of the product to be welded 16.
[0040] An isolation barrier 14 is also arranged in the placement slot 2. The isolation barrier 14 needs to be arranged according to the pin position of the PCB board. The isolation barrier 14 can prevent bridging during the soldering process and avoid bridging of the pins on the PCB board.
Claims
1. A novel welding fixture, characterized in that, The device includes a base, on which a placement groove is provided and at least two sets of support columns are provided on the outer ring of the placement groove. A pressing assembly is provided on the support column. The pressing assembly includes a cover plate and a cover plate buckle. The cover plate buckle is provided on the support column. The cover plate is provided on the support column and is arranged corresponding to the position of the cover plate buckle. An elastic component is provided on the side of the cover plate facing the placement groove.
2. The novel welding fixture according to claim 1, characterized in that, The elastic component includes a top pressure rod, the end of which passes through the cover plate away from the placement groove and is provided with a first limiting part, the end of which is provided with a second limiting part near the placement groove, and a first elastic element is provided on the top pressure rod and on the side of the cover plate near the placement groove.
3. The novel welding fixture according to claim 1, characterized in that, The placement slot is equipped with at least two sets of positioning posts.
4. The novel welding fixture according to claim 1, characterized in that, At least two sets of elastic buckles are provided on the base and on the outer ring of the placement groove. The elastic buckles are rotatably connected to the base and are provided with a first reset member.
5. The novel welding fixture according to claim 4, characterized in that, The elastic buckle is rotatably connected to the base via a fixed shaft. A third limiting part is provided on the fixed shaft. A second elastic element is provided on the fixed shaft on the side of the elastic buckle away from the base. The other side of the second elastic element abuts against the third limiting part.
6. The novel welding fixture according to claim 1, characterized in that, The cover plate buckle includes a connecting part and a pressing part. The support column has a buckle groove arranged along the axial direction of the support column on the side away from the placement groove. The connecting part is located in the buckle groove, and the pressing part is located on the upper surface of the support column.
7. A novel welding fixture according to claim 6, characterized in that, The snap-fit groove is provided with a guide groove arranged along the axial direction of the support column. The connecting part is slidably and rotatably connected to the guide groove. A second reset member is provided between the connecting part and the snap-fit groove.
8. A novel welding fixture according to any one of claims 1 to 7, characterized in that, The placement slot is also equipped with an isolation fence.
9. A novel welding fixture according to any one of claims 1 to 7, characterized in that, The cover plate has a top pressing groove on the side away from the placement groove, and the top pressing groove is aligned with the pressing position of the cover plate.