A nickel sheet welding jig
By designing the clamping components and elastic claw structure of the nickel sheet welding fixture, the problem of difficulty in clamping the nickel sheet before welding was solved, achieving stable clamping of the nickel sheet and aluminum block, improving welding efficiency and equipment utilization, avoiding nickel sheet deformation, and enhancing welding quality and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU DESAY INTELLIGENT ENERGY STORAGE CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-07-14
Smart Images
Figure CN224488109U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of nickel sheet welding technology for energy storage batteries, and specifically relates to a nickel sheet welding fixture. Background Technology
[0002] In the energy storage battery industry, to reduce costs and overall weight, a combination of aluminum and nickel is currently being used as a conductive material to replace the extensive use of copper. Therefore, welding aluminum blocks to nickel sheets has become one of the commonly used welding processes in the battery industry.
[0003] In existing technologies, aluminum blocks and nickel sheets are typically clamped and fixed using fixtures before being welded together. However, before and after welding the aluminum blocks and nickel sheets, the thickness of the nickel sheets is difficult to control due to their often-formed thickness through punching and shearing processes, resulting in a large tolerance range. Furthermore, the design dimensions of the fixtures in the clamping direction often do not allow for excessive tolerance margins in order to control the clamping force.
[0004] During nickel sheet production, even if the thickness deviation is within acceptable limits, the produced nickel sheets may not be able to be clamped securely in the welding fixture, or the sheet may deform due to changes in the force point during clamping. This ultimately leads to poor welding, severely affecting the post-weld performance and service life. Summary of the Invention
[0005] To address the shortcomings of the prior art, this utility model provides a nickel sheet welding fixture. By having a clamping assembly abut against and press against the pressure block cover plate, the clamping claws are indirectly driven to abut against and clamp the nickel sheet onto the aluminum block. This improves the fixture's tolerance for nickel sheet thickness, ensures that the nickel sheet is clamped onto the aluminum block before welding, avoids nickel sheet deformation, and improves the loading and unloading efficiency before and after welding, as well as the utilization rate of the welding equipment.
[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects:
[0007] This utility model provides a nickel sheet welding fixture for clamping and fixing an aluminum block and a nickel sheet before welding, comprising:
[0008] The bracket positioning plate includes a defined installation space and clamping assemblies on both sides of the installation space laterally.
[0009] A fixed bracket is fixed within the installation space, abutting against and being clamped and fixed by the bracket positioning plate. The fixed bracket is provided with a receiving groove for fixing the aluminum block; and
[0010] A pressure block cover plate is disposed within the installation space and located on the side of the fixed bracket away from the bracket positioning plate. The pressure block cover plate is provided with a nickel sheet pressure block assembly on the side away from the fixed bracket.
[0011] The nickel sheet pressing assembly includes a pressing claw that can move elastically in the height direction, the pressing claw passing vertically through the pressing block cover plate; the clamping assembly abuts against and presses against the pressing block cover plate, so that the pressing claw abuts against and clamps the nickel sheet onto the aluminum block.
[0012] In some implementations, the nickel sheet pressing assembly includes a base, a guide post, an elastic element, and a limiting block. The base is fixed to the pressing cover plate, and a cantilever is provided on the side of the pressing cover plate opposite to the receiving groove. The guide post passes through the cantilever and is fixedly connected to the pressing claw and the limiting block at both ends, respectively. The elastic element is disposed between the pressing claw and the cantilever.
[0013] In some implementations, the nickel sheet pressing assembly further includes an adjustment kit, which includes a push-pull block and a socket. The socket is fixed to the base and disposed on the same side as the limiting block. The push-pull block passes through the socket and abuts against the limiting block. The push-pull block can drive the limiting block to move, causing the pressing claw to move closer to or away from the receiving groove.
[0014] In some implementations, the limiting block is equipped with a bearing, which is rotatably disposed within the limiting block. The end of the push-pull block that abuts against the limiting block is an insertion end, and the bearing is lifted by the insertion end, driving the limiting block to move.
[0015] In some implementations, the socket is further provided with a limiting stud, and the push-pull block is provided with a slot on the side facing the limiting stud. When the slot coincides with the position of the limiting stud, the push-pull block is limited and fixed by the limiting stud.
[0016] In some implementations, the bracket positioning plate is provided with a rotating bracket along the longitudinal direction of the installation space, and the pressure block cover is rotatably mounted on the rotating bracket.
[0017] In some implementations, the bracket positioning plate is provided with positioning elements on the horizontal and vertical edges of the installation space, and the fixed bracket abuts against the positioning elements within the installation space.
[0018] In some implementations, the bracket positioning plate is provided with clamping push blocks on the lateral and longitudinal edges of the installation space, which push the fixed bracket toward the positioning member.
[0019] Furthermore, in the installation space, the bracket positioning plate is also provided with an aluminum block pad, which protrudes from the bottom of the installation space and abuts against the fixed bracket.
[0020] Furthermore, the aluminum pad is disposed on the side opposite to the receiving groove, and the nickel sheet coincides with the center of the aluminum pad in both the transverse and longitudinal directions.
[0021] In summary, this utility model has at least the following advantages:
[0022] 1. The nickel sheet welding fixture provided by this utility model has an aluminum block fixed in a receiving groove, and a fixing bracket fixed to a bracket positioning plate. A clamping assembly abuts against and presses against the pressure block cover plate, indirectly driving the elastically moving pressure claws to vertically press against the nickel sheet. This expands the allowable tolerance range for the nickel sheet thickness, ensuring that the aluminum block and nickel sheet are clamped before welding. Simultaneously, it ensures that the contact surface of the pressure claws is not at an angle to the nickel sheet when pressing against it, avoiding uneven force that could cause deformation of the nickel sheet.
[0023] 2. The nickel sheet welding fixture provided by this utility model first fixes aluminum blocks on a fixed bracket in batches, and then clamps all nickel sheets at once through the pressure block cover plate. While ensuring the clamping quality, it improves the loading and unloading efficiency of aluminum blocks and nickel sheets, and also increases the utilization rate of welding equipment. Attached Figure Description
[0024] Figure 1 This is an axonometric view of the nickel sheet welding fixture after assembly in Example 1.
[0025] Figure 2 This is an exploded view of the nickel sheet welding fixture of Example 1.
[0026] Figure 3 The image shown is an axonometric view of the nickel sheet pressing assembly in Example 1.
[0027] Figure 4 for Figure 3 AA sectional view.
[0028] Figure 5 for Figure 1 A partial sectional view at point B in the diagram.
[0029] Figure 6 This is an isometric view of the nickel sheet welding fixture with the pressure plate bracket in the open state, as shown in Example 2.
[0030] Figure 7 This is an axonometric view of the nickel sheet welding fixture in operation, as shown in Example 2.
[0031] Figure 8 This is a cross-sectional view of the nickel sheet welding fixture in Example 2, showing the center of the aluminum block pad.
[0032] Figure 9 This is an axonometric view of the nickel sheet welding fixture in operation, as shown in Example 3.
[0033] Marked in the image:
[0034] 100. Nickel sheet welding fixture;
[0035] 200. Aluminum block;
[0036] 300, nickel sheet;
[0037] 400, signal line;
[0038] 1. Bracket positioning plate; 11. Installation space; 12. Clamping assembly; 121. Clamping rod; 122. Top pressure head; 13. Rotating bracket; 14. Positioning component; 15. Clamping push block; 16. Aluminum block pad; 17. Handle.
[0039] 2. Fixed bracket; 21. Receiving slot;
[0040] 3. Pressing block cover plate; 31. Rotating shaft;
[0041] 4. Nickel sheet pressing block assembly, 41. Pressing claw, 42. Base, 43. Guide post, 44. Elastic element, 45. Limiting block, 451. Bearing, 46. Cantilever, 47. Adjustment kit, 471. Push-pull block, 4711. Slot, 4712. Insertion end, 472. Socket, 4721. Limiting stud;
[0042] X represents the horizontal direction; Y represents the vertical direction; and Z represents the vertical direction. Detailed Implementation
[0043] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.
[0044] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0045] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0047] For ease of understanding, it should be noted that the X-axis in the graph represents the horizontal direction, the Y-axis represents the vertical direction, and the Z-axis represents the vertical direction.
[0048] Example 1:
[0049] Please see Figures 1-2 This embodiment provides a nickel sheet welding fixture 100 for fixing and clamping an aluminum block 200 and a nickel sheet 300 before welding. The nickel sheet welding fixture 100 includes a support positioning plate 1, a fixing bracket 2, and a pressure block cover plate 3. The aluminum block 200 to be welded is fixed in the fixing bracket 2, and then the fixing bracket 2 with the aluminum block 200 is fixed together with it to the support positioning plate 1. The pressure block cover plate 3 clamps the nickel sheet 300 onto the aluminum block 200, thereby achieving the clamping of the aluminum block 200 and the nickel sheet 300.
[0050] Specifically, the bracket positioning plate 1 is a plate-shaped structure, and its upper end surface in the height direction Z includes a defined installation space 11 and clamping components 12 on both sides of the installation space 11 in the horizontal direction X. The fixed bracket 2 is fixed in the installation space 11, abuts against the bracket positioning plate 1, and is clamped and fixed by the bracket positioning plate 1. On the side away from the bracket positioning plate 1, the fixed bracket 2 is provided with a receiving groove 21 for fixing the aluminum block 200. In the receiving groove 21, there is generally a structure or component for fixing and removing the aluminum block 200. The pressure block cover plate 3 is disposed in the installation space 11 and is located on the side of the fixed bracket 2 away from the bracket positioning plate 1, that is, on the upper side of the receiving groove 21. The pressure block cover plate 3 is provided with a nickel sheet pressure block assembly 4 on the side away from the fixed bracket 2.
[0051] The nickel sheet pressing assembly 4 serves as the actuator for pressing the nickel sheet 300 and includes a pressing claw 41 that moves elastically in the height direction Z. The pressing claw 41 is elastically disposed on the nickel sheet pressing assembly 4 and extends vertically through the pressing cover plate 3 into the receiving groove 21.
[0052] In use, one or more aluminum blocks 200 are fixed to the fixed bracket 2, thus defining the positions of the aluminum blocks 200 and the fixed bracket 2. The nickel sheet 300 can be fixed simultaneously with the aluminum blocks 200, or it can be placed on top of the aluminum blocks 200 in subsequent operations. In this embodiment, the welding of the aluminum blocks 200 and the nickel sheet 300 is used for signal acquisition. While the aluminum blocks 200 are fixed, the pre-welded signal line 400 and the nickel sheet 300 assembly can also be placed on the fixed bracket 2 and fixed to the fixed bracket 2 via the signal line 400, thereby pre-positioning the nickel sheet 300 to improve the loading efficiency of the fixture. Of course, the fixed bracket 2 also has a receiving groove for fixing the signal line 400; since the relevant structure is similar to the receiving groove 21 of the aluminum blocks 200, it will not be described in detail here.
[0053] A fixed bracket 2 with an aluminum block 200 and a nickel sheet 300 is placed in the installation space 11 and abuts against the bracket positioning plate 1. Then, a pressure block cover plate 3 is placed above the fixed bracket 2. The clamping assembly 12, located on the bracket positioning plate 1, is operated to abut against and press against the pressure block cover plate 3. Through force transmission, the pressure claw 41 abuts against and clamps the nickel sheet 300 onto the aluminum block 200. In this embodiment, the clamping assembly 12 is an elbow clamp. Rotating the clamping rod 121 of the elbow clamp causes the pressure head 122 of the elbow clamp to press against the pressure block cover plate 3, thereby achieving the pressing effect of the clamping assembly 12. In other embodiments, a cylinder and lever structure can also be used.
[0054] In actual production, the contact point between the pressure claw 41 and the nickel sheet 300 has a U-shaped structure for welding. The welding torch acts on the center of the U-shape, and the nickel sheet 300 is welded to the aluminum block 200 through resistance heat welding or other methods. Because the pressure claw 41 is elastically mounted on the nickel sheet clamping block assembly 4, when the nickel sheet 300 is pressed down, the clamping height can automatically and slightly adjust according to the actual thickness of the nickel sheet 300. Generally, the elastically mounted pressure claw 41 will not produce excessive mechanical changes within the thickness tolerance range of the nickel sheet 300, and such changes can even be ignored. That is, when the nickel sheet 300 is thin, the pressure claw 41 moves elastically and follows the nickel sheet 300 downwards, keeping the pressure claw 41 and the nickel sheet 300 in a clamped state; while when the nickel sheet 300 is thick, the pressure claw 41 can also be lifted by the nickel sheet 300, and the increased pressure is insufficient to cause damage to the nickel sheet 300.
[0055] Secondly, the clamping force of the clamping assembly 12 is indirectly transmitted to the clamping claw 41 through the clamping block cover plate 3, thereby ensuring that no matter what the actual thickness of the nickel sheet 300 is, the clamping claw 41 always applies pressure in a direction perpendicular to the nickel sheet 300, effectively avoiding the situation where the thickness of the nickel sheet 300 changes and causes the clamping claw 41 and the nickel sheet 300 to form an angle, resulting in the nickel sheet 300 being crushed or bent.
[0056] In addition, the aluminum blocks 200 can be fixed in batches by the fixing bracket 2, and multiple nickel sheet clamping assemblies 4 are set on the clamping cover plate 3 to clamp multiple sets of nickel sheets 300 and aluminum blocks 200 at the same time, improving the loading and unloading efficiency before and after welding. As for the welding equipment, since it can perform welding at multiple points at the same time, the utilization rate of the welding equipment is also effectively improved.
[0057] In some embodiments, the nickel sheet pressing assembly 4 includes a base 42, a guide post 43, an elastic element 44, and a limiting block 45. For example... Figure 3 As shown, the base 42 is fixed to the pressure block cover plate 3, and a cantilever 46 is provided on the side of the pressure block cover plate 3 opposite to the receiving groove 21. In some embodiments, the cantilever 46 is arranged parallel to the pressure block cover plate 3, and the guide post 43 passes through the cantilever 46, is perpendicular to the pressure block cover plate 3, and a pressure claw 41 and a limiting block 45 are fixedly connected to both ends of the guide post 43, respectively. An elastic element 44 is disposed between the pressure claw 41 and the cantilever 46. The pressure claw 41 and the limiting block 45 are disposed on both sides of the cantilever 46, and the elastic element 44 is in a pre-compression state. When the aluminum block 200 and the nickel sheet 300 are not installed, the pressure claw 41 will extend into the receiving groove 21 and be lower than the theoretical contact surface position between the nickel sheet 300 and the aluminum block 200. This ensures that the nickel sheet 300 can still be pressed tightly when it is thin. The pre-compression elastic element 44 is a part that realizes the elastic movement of the pressure claw 41. In this embodiment, the elastic element 44 is a cylindrical spring, which is wound around the outside of the guide post 43. Two guide posts 43 are provided to prevent rotational offset caused by the clamping jaws. In other embodiments, the guide post 43 can also be a square column, and the cantilever 46 has a through hole matching the guide post 43; in this case, a single guide post 43 can achieve the anti-deflection effect.
[0058] In a further embodiment, the nickel sheet clamping block assembly 4 also includes an adjustment kit 47, which includes a push-pull block 471 and a socket 472. The socket 472 is fixed to the base 42 and is disposed on the same side as the limiting block 45. The push-pull block 471 passes through the socket 472 and abuts against the limiting block 45. Under the action of external force, the push-pull block 471 can continue to push the limiting block 45 to move and lift the limiting block 45 away from the cantilever 46, thereby driving the limiting block 45 to move upward. The clamping claw 41 at the other end of the guide post 43 also moves accordingly, thereby allowing the clamping claw 41 to move closer to or further away from the receiving groove 21. After setting the push-pull block 471 and the socket 472, by adjusting the position of the push-pull block 471, the clamping claw 41 can be adapted to aluminum blocks 200 and nickel sheets 300 of different thicknesses and sizes, or the clamping situation can be finely adjusted due to assembly problems.
[0059] Furthermore, in Figure 3 Based on the above, refer to Figure 4 The limiting block 45 is equipped with a bearing 451, which is rotatably disposed within the limiting block 45. The end of the push-pull block 471 that abuts against the limiting block 45 is the insertion end 4712. When the insertion end 4712 abuts against the limiting block 45, it directly abuts against the outer ring of the bearing 451. In this embodiment, the insertion end 4712 is an inclined surface facing the limiting block 45. In other embodiments, the insertion end 4712 can also be set as an arc surface, etc. After the bearing 451 abuts against the insertion end 4712 and is pushed up, the limiting block 45 is driven to move away from the cantilever 46. The bearing 451 and the insertion end 4712 significantly reduce the friction between the push-pull block 471 and the limiting block 45, and also optimize the force distribution between the two, making it smoother and easier for the operator to adjust the push-pull block 471.
[0060] In other embodiments, the socket 472 is further provided with a limiting stud 4721, and the push-pull block 471 has a slot 4711 on the side facing the limiting stud 4721. When the slot 4711 coincides with the limiting stud 4721, the push-pull block 471 is limited and fixed by the limiting stud 4721. In this embodiment, the limiting stud 4721 is located on the side of the plug away from the base 42, while the slot 4711 is located on the side opposite to the limiting stud 4721. The limiting stud 4721 can be a ball-head plunger or a set screw. By setting the limiting stud 4721 and the slot 4711, the position of the push-pull block 471 is fixed, thereby ensuring that the pressure claw 41 is located in the theoretically designed position. This improves the ease of operation of the push-pull rod. In other embodiments, the limiting stud 4721 may also be provided on the side of the socket 472, and the slot 4711 may also be provided on the side of the push-pull block 471.
[0061] exist Figures 1-4 Based on this, please refer to Figure 5In the longitudinal direction Y of the installation space 11, the bracket positioning plate 1 is provided with a rotating bracket 13, and the pressure block cover plate 3 is rotatably mounted on the rotating bracket 13. In this embodiment, there are two pressure block cover plates 3, and the rotating brackets 13 are respectively arranged on both sides of the longitudinal direction Y of the bracket positioning plate 1. The pressure block cover plate 3 is provided with a rotating shaft 31 on the side of the longitudinal direction Y. Through the cooperation of the rotating shaft 31 and the rotating bracket 13, the pressure block cover plate 3 is rotatably mounted on the rotating bracket 13. Of course, in other embodiments, standard parts such as hinges can also be used to achieve the rotation setting. The specific structure needs to be selected according to the actual size, weight and other parameters of the pressure block cover plate 3, which will not be described in detail here.
[0062] In summary, the nickel sheet welding fixture provided by this utility model has an aluminum block fixed in a receiving groove, and a fixing bracket fixed to a bracket positioning plate. The clamping assembly abuts against and presses against the pressure block cover plate, indirectly driving the elastically moving pressure claws to vertically press against the nickel sheet. This expands the allowable tolerance range for the nickel sheet thickness, ensuring that the aluminum block and nickel sheet are clamped before welding. Simultaneously, it also ensures that the contact surface of the pressure claws is not at an angle to the nickel sheet when pressing against it, avoiding uneven force that could cause deformation of the nickel sheet.
[0063] In addition, the nickel sheet welding fixture provided by this utility model first fixes aluminum blocks on a fixed bracket in batches, and then clamps all nickel sheets at once through the pressure block cover plate. While ensuring the clamping quality, it improves the loading and unloading efficiency of aluminum blocks and nickel sheets, and also increases the utilization rate of welding equipment.
[0064] Example 2:
[0065] This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-5 Based on the above, refer to Figures 6-8 This embodiment differs from Embodiment 1 in that, on the horizontal (X) and vertical (Y) edges of the installation space 11, the bracket positioning plate 1 is provided with positioning elements 14, and the fixed bracket 2 abuts against the positioning elements 14 within the installation space 11. By abutting against the positioning elements 14, the fixed bracket 2 achieves rapid positioning. To ensure both speed and accuracy, positioning elements 14 can be provided on two adjacent edges to quickly determine the accurate position in both spatial dimensions. Combined with the abutment between the fixed bracket 2 and the bracket positioning plate 1 in the vertical (Z) direction, the relative position of the fixed bracket 2 on the bracket positioning plate 1 is completely determined.
[0066] Furthermore, on the horizontal X and vertical Y edges of the installation space 11, the bracket positioning plate 1 is provided with clamping push blocks 15 opposite to the positioning member 14. The clamping push blocks 15 push the fixed bracket 2 toward the positioning member 14. After the clamping push blocks 15 are provided, when the fixed bracket 2 is installed in the installation space 11, after the accurate position with the positioning member 14 is determined, the other side of the fixed bracket 2 is pressed into the clamping push blocks 15. This ensures that the position of the aluminum block 200 remains unchanged throughout the entire process from before the pressure claw 41 presses the nickel sheet 300 until the welding is completed. This avoids the situation where the welding point position of the aluminum block 200 and the nickel sheet 300 shifts due to the handling of the nickel sheet welding fixture 100 or due to vibration.
[0067] In practical applications, the clamping push block 15 can be a set of components, generally equipped with springs, guides, and other accessories to achieve the final pushing action. Of course, the clamping push block 15 can also have other structures, as there are many possible implementation methods, which will not be elaborated here.
[0068] In some embodiments, to ensure effective contact between the fixed bracket 2 and the bracket positioning plate 1, the bracket positioning plate 1 is further provided with an aluminum block 16 on the installation space 11. The aluminum block 16 protrudes from the bottom of the installation space 11 and abuts against the fixed bracket 2. Through the aluminum block 16, the contact between the bracket positioning plate 1 and the fixed bracket 2 is achieved through multiple dispersed small planes, effectively avoiding the situation where some stress-bearing positions are suspended due to differences in the flatness of the contact surfaces between the bracket positioning plate 1 and the fixed bracket 2, which would ultimately affect the welding effect of the aluminum block 200 and the nickel sheet 300. At the same time, the use of small plane contact provides more suspension space between the bracket positioning plate 1 and the fixed bracket 2, effectively reducing the overall weight of the nickel sheet welding fixture 100 and providing conditions for heat dissipation during subsequent welding.
[0069] In this embodiment, the aluminum block pad 16 is positioned on the opposite side of the receiving groove 21, ensuring that the nickel sheet 300 and aluminum block 200 do not experience displacement in the height direction Z when external welding equipment applies welding force to them. This is especially important for automated welding equipment, where the height coordinates are fixed. Displacement in the height direction Z during welding can lead to poor weld strength. To further improve welding stability, the centers of the nickel sheet 300 and aluminum block pad 16 coincide in both the horizontal (X) and vertical (Y) directions. Since welding typically involves applying pressure to the center of the nickel sheet 300 through the center of the pressure claw 41, and the center of the aluminum block pad 16 is the most stable point under stress during actual installation, coinciding centers reduce the likelihood of shaking during use due to production deviations in the nickel sheet welding fixture 100, which could ultimately affect the welding effect of the aluminum block 200 and nickel sheet 300.
[0070] In summary, the nickel sheet welding fixture provided in this embodiment improves the positioning efficiency and stability of the fixed bracket by setting positioning components and other structures on the bracket positioning plate, thus ensuring the final welding quality of the aluminum block and nickel sheet.
[0071] Example 3:
[0072] This embodiment, based on Embodiments 1 and 2 above, provides a nickel sheet welding fixture 100. Please refer to... Figures 1-8 Based on this, refer to Figure 9 The difference lies in that the nickel sheet welding fixture 100 in this embodiment also includes handles 17. Handles 17 are mounted on the bracket positioning plate 1 and are located on both sides where the clamping assembly 12 is provided. By providing handles 17, the bracket positioning plate 1 can be easily moved as a whole, loaded and unloaded on the work platform, and rotated during the process of fixing the aluminum block 200 and the nickel sheet 300. Furthermore, by providing handles 17, the size of the bracket positioning plate 1 can be reduced, eliminating the need for side allowances to assist in disassembly, thereby reducing the overall weight of the nickel sheet welding fixture 100.
[0073] To further reduce the weight of the nickel sheet welding fixture 100 and meet the needs of batch welding, the fixing bracket 2 can be a plastic part formed by injection molding, and the structure for fixing the aluminum block 200 can also be integrally molded onto the fixing bracket 2 by injection molding. Of course, if the process allows, the fixing bracket 2 can also be manufactured using 3D printing technology to meet the needs of small-batch production.
[0074] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.
Claims
1. A nickel sheet welding fixture for clamping and fixing an aluminum block (200) and a nickel sheet (300) before welding, characterized in that, include: The bracket positioning plate (1) includes a defined installation space (11) and clamping assemblies (12) on both sides of the installation space (11) laterally (X). A fixed bracket (2) is fixed within the installation space (11), abutting against the bracket positioning plate (1) and being clamped and fixed by the bracket positioning plate (1). The fixed bracket (2) is provided with a receiving groove (21) for fixing the aluminum block (200); and The pressure block cover plate (3) is disposed in the installation space (11) and located on the side of the fixed bracket (2) away from the bracket positioning plate (1). The pressure block cover plate (3) is provided with a nickel sheet pressure block assembly (4) on the side away from the fixed bracket (2). The nickel sheet pressing assembly (4) includes a pressing claw (41) that can move elastically in the height direction (Z), the pressing claw (41) passing vertically through the pressing block cover plate (3); the clamping assembly (12) abuts against and presses against the pressing block cover plate (3), so that the pressing claw (41) abuts against and clamps the nickel sheet (300) onto the aluminum block (200).
2. The nickel sheet welding fixture according to claim 1, characterized in that, The nickel sheet pressing assembly (4) includes a base (42), a guide post (43), an elastic element (44), and a limiting block (45). The base (42) is fixed on the pressing cover plate (3), and a cantilever (46) is provided on the side of the pressing cover plate (3) opposite to the receiving groove (21). The guide post (43) passes through the cantilever (46) and is fixedly connected to the pressing claw (41) and the limiting block (45) at both ends respectively. The elastic element (44) is disposed between the pressing claw (41) and the cantilever (46).
3. The nickel sheet welding fixture according to claim 2, characterized in that, The nickel sheet pressing assembly (4) also includes an adjustment kit (47), which includes a push-pull block (471) and a socket (472). The socket (472) is fixed to the base (42) and is disposed on the same side as the limiting block (45). The push-pull block (471) passes through the socket (472) and abuts against the limiting block (45). The push-pull block (471) can drive the limiting block (45) to move, causing the pressing claw (41) to move closer to or away from the receiving groove (21).
4. The nickel sheet welding fixture according to claim 3, characterized in that, The limiting block (45) is provided with a bearing (451), which is rotatably disposed inside the limiting block (45). The end of the push-pull block (471) that abuts against the limiting block (45) is an insertion end (4712). The bearing (451) is lifted by the insertion end (4712), driving the limiting block (45) to move.
5. The nickel sheet welding fixture according to claim 3, characterized in that, The socket (472) is also provided with a limiting stud (4721). The push-pull block (471) has a slot (4711) on the side facing the limiting stud (4721). When the slot (4711) coincides with the limiting stud (4721), the push-pull block (471) is limited and fixed by the limiting stud (4721).
6. The nickel sheet welding fixture according to claim 1, characterized in that, In the longitudinal direction (Y) of the installation space (11), the bracket positioning plate (1) is provided with a rotating bracket (13), and the pressure block cover plate (3) is rotatably mounted on the rotating bracket (13).
7. The nickel sheet welding fixture according to claim 1, characterized in that, On the horizontal (X) and vertical (Y) edges of the installation space (11), the bracket positioning plate (1) is provided with positioning elements (14), and the fixed bracket (2) abuts against the positioning elements (14) within the installation space (11).
8. The nickel sheet welding fixture according to claim 7, characterized in that, On the horizontal (X) and vertical (Y) edges of the installation space (11), the bracket positioning plate (1) is provided with a clamping push block (15) opposite to the positioning member (14), and the clamping push block (15) pushes the fixed bracket (2) toward the positioning member (14).
9. The nickel sheet welding fixture according to any one of claims 7-8, characterized in that, In the installation space (11), the bracket positioning plate (1) is also provided with an aluminum block pad (16), which protrudes from the bottom of the installation space (11) and abuts against the fixed bracket (2).
10. The nickel sheet welding fixture according to claim 9, characterized in that, The aluminum block pad (16) is located on the opposite side of the receiving groove (21), and the nickel sheet (300) coincides with the center of the aluminum block pad (16) in the transverse (X) and longitudinal (Y) directions.