A copper bar positioning and welding fixture

Abstract

The application provides a copper bar positioning and welding clamp, which comprises a pressing assembly, a feeding assembly and a lifting mechanism, wherein the pressing assembly comprises a pressing plate and the lifting mechanism which is used for lifting the pressing plate up and down; the feeding assembly comprises a profiling plate, a plurality of clamping mechanisms and a longitudinal horizontal moving mechanism, the plurality of clamping mechanisms are connected with the moving end of the longitudinal horizontal moving mechanism through a mounting plate; a plurality of profiling portions are arranged at the right end of the profiling plate; each profiling portion is provided with at least one clamping mechanism corresponding to clamping another part of the copper bar, each clamping mechanism comprises an inner top unit and an outer top unit; the inner top unit is arranged on the profiling plate, and the outer top unit is arranged on the side of the profiling portion which is away from the inner top unit; at least one copper nozzle structure is arranged above each clamping mechanism, and the copper nozzle structure is embedded in the pressing plate and penetrates through the pressing plate. The application can ensure that the combined copper bar is positioned accurately and clamped reliably during welding, and can avoid problems such as welding displacement and interlayer gap, can realize quick replacement of the clamp for various products, and can simultaneously weld multiple products at a time.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and in particular to a copper busbar positioning welding fixture. Background Technology

[0002] Currently, given the diverse specifications, large size differences, and high welding precision requirements of automotive copper busbars, there is an urgent need to design a welding fixture that is highly adaptable, accurately positioned, reliably clamped, and easy to operate. This fixture should be able to adapt to different specifications of automotive copper busbars, ensure consistent welding quality, and facilitate efficient processing of automotive copper busbars.

[0003] Existing copper busbar positioning and welding fixtures have the following defects: 1. Low positioning accuracy, unable to meet the welding requirements of combined copper busbars; 2. It is difficult to weld multiple products at the same time, resulting in low work efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a copper busbar positioning and welding fixture that ensures accurate positioning and reliable clamping of the assembled copper busbars during welding, avoids problems such as welding displacement and interlayer gaps, enables quick change of fixtures for various products, and allows for simultaneous welding of multiple products at once.

[0005] The embodiments of the present invention are achieved through the following technical solutions: A copper busbar positioning and welding fixture, comprising: The pressing assembly includes a pressure plate and a lifting mechanism that causes the pressure plate to move up and down. The feeding assembly includes a contour plate, several clamping mechanisms, and a longitudinal and horizontal moving mechanism. The clamping mechanisms are connected to the moving end of the longitudinal and horizontal moving mechanism via a mounting plate. The right end of the contour plate is provided with several contouring parts to support a portion of the copper busbar. Each contouring part is provided with at least one clamping mechanism to clamp another portion of the copper busbar. Each clamping mechanism includes an inner top unit and an outer top unit. The inner top unit is disposed on the contour plate, and the contouring parts are located between the inner top unit and the outer top unit. Each of the clamping mechanisms is provided with at least one copper nozzle structure above it, the copper nozzle structure being vertically continuous and embedded in the pressure plate.

[0006] According to a preferred embodiment, the inner top unit includes an inner top slider and an inner top clamping block disposed on the left side of the contouring part. The inner top slider is connected to the side wall of the contouring plate through an elastic element. The inner top slider includes a first inner top and a second inner top disposed from top to bottom. The outer top unit includes an outer top slide rail and an outer top slider that is slidably fitted on the outer top slide rail. The outer top slider extends toward the inner top unit and is provided with a first outer top and a second outer top. The first outer top is located above the second outer top, and an outer top locking member is provided on the outer top slider.

[0007] According to a preferred embodiment, the inner top clamping block includes a clamping arm and a clamping drive unit that causes the clamping arm to open or close. The clamping arm includes a first limiting arm and a second limiting arm. The sidewalls of the first limiting arm and the second limiting arm are provided with slots. When the first limiting arm and the second limiting arm are closed, the two slots are closed to form a limiting groove. The limiting groove is adapted to the shape and size of part of the top of the copper busbar. The first inner top is located between the first limiting arm and the second limiting arm.

[0008] According to a preferred embodiment, a return spring is connected between the first limiting arm and the second limiting arm, and the clamping drive unit causes the first limiting arm and the second limiting arm to swing through a pusher.

[0009] According to a preferred embodiment, the clamping drive unit is a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the pusher, and the first limiting arm and the second limiting arm are each provided with a roller at the end near the pusher. The cylinder causes the pusher to push the two rollers to rotate simultaneously, so as to ensure that the first limiting arm and the second limiting arm swing simultaneously.

[0010] According to a preferred embodiment, a plurality of the contoured parts are equidistantly distributed and do not interfere with each other.

[0011] According to a preferred embodiment, it further includes an air knife, which is disposed on one side of the longitudinal horizontal moving mechanism; Each of the copper nozzle structures is equipped with an air blowing tube.

[0012] According to a preferred embodiment, the contour plate is provided with positioning pins; The pressure plate has positioning holes that are adapted to the shape and size of the positioning pin.

[0013] According to a preferred embodiment, a limiting mechanism is provided on the side of the second inner top near the second outer top.

[0014] According to a preferred embodiment, it further includes a fixed frame, the longitudinal horizontal moving mechanism is horizontally disposed on the fixed frame, and the lifting mechanism is vertically disposed on the fixed frame and located outside the mounting plate; The fixing frame is also provided with a longitudinal guide rail, and the bottom of the mounting plate is provided with a longitudinal slider that matches the longitudinal guide rail; the fixing frame is provided with a longitudinal limiting component to limit the maximum horizontal displacement of the longitudinal slider.

[0015] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects: This invention enables universal compatibility with copper busbars of different specifications, ensuring accurate positioning and reliable clamping during welding, avoiding problems such as welding displacement and interlayer gaps. It allows for quick change of fixtures for various products and enables simultaneous welding of multiple products. It is compatible with automated welding production lines, simplifies the operation process, improves processing efficiency, ensures the welding quality of copper busbars, and meets the stringent requirements of new energy vehicles for the conductivity and structural strength of copper busbars.

[0016] The system is equipped with a contouring element and multiple clamping mechanisms. Each contouring element and corresponding clamping mechanism can support and fix two copper busbars together, ensuring precise positioning and high-quality welding. Each group consists of two copper busbars assembled and fixed for welding, allowing multiple groups of copper busbars to be positioned, installed, and welded simultaneously, greatly improving welding efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a copper busbar positioning and welding fixture provided in an embodiment of the present invention; Figure 2 This is a partial top view of the feeding assembly provided in an embodiment of the present invention; Figure 3 This is a partial side view cross-sectional structural diagram of the feeding assembly provided in an embodiment of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the feeding assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first copper busbar and the second copper busbar provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the mounting plate provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the limiting mechanism provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the contour plate provided in an embodiment of the present invention.

[0019] Icons: 1. Pressure plate; 2. Lifting mechanism; 3. Copying plate; 31. Copying part; 4. Longitudinal horizontal movement mechanism; 5. Copper nozzle structure; 6. Inner top slider; 61. First inner top; 62. Second inner top; 7. Inner top clamping block; 71. First limiting arm; 72. Second limiting arm; 73. Return spring; 74. Roller; 75. Limiting groove; 76. Clamping drive unit; 77. Pushing component; 8. Air knife; 9. Positioning pin; 10. Air blowing pipe; 11. Outer top slide rail; 12. Outer top slider; 13. First outer top; 14. Second outer top; 15. Outer top locking component; 16. Limiting mechanism; 17. Mounting plate; 18. Positioning block; A. First copper busbar; B. Second copper busbar. Detailed Implementation

[0020] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this invention.

[0022] 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. Example

[0023] Reference Figures 1 to 8 A copper busbar positioning and welding fixture includes: a pressing assembly, including a pressure plate 1 and a lifting mechanism 2 for moving the pressure plate 1 up and down; a feeding assembly, including a contour plate 3, several clamping mechanisms and a longitudinal horizontal moving mechanism 4, wherein the several clamping mechanisms are connected to the moving end of the longitudinal horizontal moving mechanism via a mounting plate 17; the right end of the contour plate 3 is provided with several contouring parts 31 to support a portion of the copper busbar (first copper busbar A); each contouring part 31 is provided with at least one corresponding clamping mechanism to clamp another portion of the copper busbar (second copper busbar B), and each clamping mechanism includes an inner top unit and an outer top unit; the inner top unit is provided on the contour plate 3, and the contouring parts 31 are located between the inner top unit and the outer top unit; Each clamping mechanism has at least one copper nozzle structure 5 above it, which runs vertically through the pressure plate 1.

[0024] According to a preferred embodiment, the inner top unit includes an inner top slider 6 and an inner top clamping block 7 disposed on the left side of the contouring part 31. The inner top slider 6 is connected to the side wall of the contouring plate 3 through an elastic member. The inner top slider 6 includes a first inner top 61 and a second inner top 62 disposed from top to bottom. The outer top unit includes an outer top slide rail 11 and an outer top slider 12 that is slidably fitted on the outer top slide rail 11. The outer top slider 12 extends toward the inner top unit and is provided with a first outer top 13 and a second outer top 14. The first outer top 13 is located above the second outer top 14. An outer top locking member 15 is provided on the outer top slider 12.

[0025] According to a preferred embodiment, the inner top clamping block 7 includes a clamping arm and a clamping drive unit 76 that causes the clamping arm to open or close. The clamping arm includes a first limiting arm 71 and a second limiting arm 72. The sidewalls of the first limiting arm 71 and the second limiting arm 72 are provided with slots. After the first limiting arm 71 and the second limiting arm 72 are closed, the two slots are closed to form a limiting groove 75. The limiting groove 75 is adapted to the shape and size of part of the top of the copper busbar. The first inner top 61 is located between the first limiting arm 71 and the second limiting arm 72.

[0026] According to a preferred embodiment, a return spring 73 is connected between the first limiting arm 71 and the second limiting arm 72. The clamping drive unit 76 causes the first limiting arm 71 and the second limiting arm 72 to swing through the pusher 77. The return spring 73 can keep the first limiting arm 71 and the second limiting arm 72 in a close-to-each-other state.

[0027] According to a preferred embodiment, the clamping drive unit 76 is a telescopic cylinder. The telescopic end of the telescopic cylinder is connected to the pusher 77. The first limiting arm 71 and the second limiting arm 72 are both provided with rollers 74 at the ends near the pusher 77. The cylinder causes the pusher 77 to push the two rollers 74 to rotate simultaneously, so as to ensure that the first limiting arm 71 and the second limiting arm 72 swing simultaneously.

[0028] According to a preferred embodiment, a plurality of contoured parts 31 are equidistantly distributed and do not interfere with each other.

[0029] According to a preferred embodiment, it also includes an air knife 8, which is disposed on one side of the longitudinal horizontal moving mechanism 4; Each copper nozzle structure 5 is equipped with an air blowing pipe 10.

[0030] According to a preferred embodiment, a positioning pin 9 is provided on the contour plate 3; The pressure plate 1 has positioning holes that are compatible with the shape and size of the positioning pin 9.

[0031] According to a preferred embodiment, a limiting mechanism 16 is provided on the side of the second inner top 62 near the second outer top 14.

[0032] According to a preferred embodiment, it also includes a fixed frame, with the longitudinal horizontal moving mechanism 4 horizontally arranged on the fixed frame, and the lifting mechanism 2 vertically arranged on the fixed frame and located on the outside of the mounting plate 17. The mounting bracket is also equipped with a longitudinal guide rail, and the bottom of the mounting plate 17 is equipped with a longitudinal slider that matches the longitudinal guide rail; the mounting bracket is equipped with a longitudinal limiting component to limit the maximum horizontal displacement of the longitudinal slider. The longitudinal horizontal movement mechanism 4 can adjust each combined copper busbar (the installed first copper busbar A and the second copper busbar B) to the area below the corresponding copper nozzle structure 5.

[0033] This invention enables universal compatibility with copper busbars of different specifications, ensuring accurate positioning and reliable clamping during welding, avoiding problems such as welding displacement and interlayer gaps. It allows for quick change of fixtures for various products and enables simultaneous welding of multiple products. It is compatible with automated welding production lines, simplifies the operation process, improves processing efficiency, ensures the welding quality of copper busbars, and meets the stringent requirements of new energy vehicles for the conductivity and structural strength of copper busbars.

[0034] The system is equipped with a contouring assembly having multiple contouring parts 31 and multiple clamping mechanisms. Each contouring part 31 and a corresponding clamping mechanism can support and fix two copper busbars together, ensuring precise positioning of the two copper busbars and guaranteeing high-quality welding. Each group consists of two copper busbars combined and fixed for welding, allowing multiple groups of copper busbars to be positioned, installed, and welded simultaneously, greatly improving welding efficiency. The two copper busbars mentioned above are the first copper busbar A and the second copper busbar B in this embodiment, as shown in the attached diagram. Figure 3 As shown in Figures A and B, the first inner top 61 presses the top left end of the first copper busbar A to the right, and the first outer top 13 presses the top right end of the first copper busbar A to the left; the second inner top 62 presses the top left end of the second copper busbar B to the right, and the second outer top 14 presses the right end of the second copper busbar B; (with attached...) Figure 3 Based on this, the left side is the direction from the outer top slider 12 toward the inner top slider 6, and similarly, the right side is the side from the inner top slider 6 toward the outer top slider 12. Specifically, in this embodiment, the first inner top 61 is located in the limiting groove 75 to limit the left side position of the first copper busbar A. The first limiting arm 71 and the second limiting arm 72 respectively limit the front and rear positions of the first copper busbar A to prevent the first copper busbar A from shifting. Specifically, when it is necessary to install the first copper busbar A and the second copper busbar B, the second copper busbar B is fitted onto the contour part 31 and the first copper busbar A is stacked on top of the second copper busbar B. The clamping arm and the outer top unit are used to clamp the first copper busbar A and the second copper busbar B. The outer top slider 12 can move horizontally back and forth along the outer top slide rail 11. When the outer top slider 12 is misaligned with the contour part 31, the second copper busbar B can be fitted onto the contour part 31. The first copper busbar A is placed in the limiting groove 75 and stacked on top of the second copper busbar B. After the first copper busbar A and the second copper busbar B are installed, the outer top slider 12 moves and presses the right side of the first copper busbar A and the second copper busbar B. Finally, the outer top slider 12 is locked by the outer top locking member 15. The outer top locking member 15 can be a pin.

[0035] The clamping drive unit 76 can be a telescopic cylinder, which can drive the pusher 77 to move left and right. The pusher 77 is set to be wider on the left and narrower on the right. When the pusher 77 moves to the right, it contacts and pushes the roller 74, thereby causing the first limiting arm 71 and the second limiting arm 72 to open or close to each other. In this embodiment, multiple clamping mechanisms, multiple contouring parts 31, and multiple copper nozzle structures 5 are provided to enable welding of multiple combined copper busbars. The clamping mechanisms are staggered to avoid mutual interference. Similarly, the multiple contouring parts 31 and multiple copper nozzle structures 5 are also staggered and can be linearly distributed to minimize mutual interference. Figure 2 As shown in the top view, multiple contoured sections 31 are arranged at equal intervals along diagonal lines. Springs are connected to the left side of each inner top slider 6 to maintain a rightward pressure. A limiting mechanism 16 can be located on the right side of the inner top slider 6, adjusting its maximum rightward displacement. The limiting mechanism 16 can be a detachable elastic element or a rigid structure, and is detachably fixed to the contoured plate 3. In this embodiment, a screw and a nut are selected as the adjustable limiting mechanism 16. The screw can move left and right through the threaded engagement of the nut and screw. The nut is fixed to the contoured plate 3, and the screw can move by rotating through the nut, allowing the left end of the screw to press against the inner top slider 6.

[0036] In this embodiment, two positioning blocks 18 can be selected. Two parallel positioning blocks 18 with a certain distance are embedded in the top surface of the mounting plate 17. The distance between the two positioning blocks 18 is the same as the bottom dimension of the second copper busbar B. The tops of the two positioning blocks 18 protrude from the surface of the mounting plate 17 to form positioning grooves. The bottom of the second copper busbar B is adapted to the shape and size of the positioning groove. The bottom of the second copper busbar B can pass horizontally through the positioning groove. The positioning groove is horizontally through the left and right sides. The bottom of the second copper busbar B can pass through the positioning groove from right to left and fit against the top surface of the mounting plate 17 to limit the front and rear position of the second copper busbar B. In addition, in another embodiment, one positioning block 18 can be selected. One positioning block 18 can be embedded in the top of the mounting plate 17. A horizontally through positioning groove is opened in the middle of the positioning block 18.

[0037] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A copper busbar positioning and welding fixture, characterized in that, include: The pressing assembly includes a pressure plate and a lifting mechanism that causes the pressure plate to move up and down. The feeding assembly includes a contour plate, several clamping mechanisms, and a longitudinal and horizontal moving mechanism. The clamping mechanisms are connected to the moving end of the longitudinal and horizontal moving mechanism via a mounting plate. The right end of the contour plate is provided with several contouring parts to support a portion of the copper busbar. Each contouring part is provided with at least one clamping mechanism to clamp another portion of the copper busbar. Each clamping mechanism includes an inner top unit and an outer top unit. The inner top unit is disposed on the contour plate, and the contouring parts are located between the inner top unit and the outer top unit. Each of the clamping mechanisms is provided with at least one copper nozzle structure above it, the copper nozzle structure being vertically continuous and embedded in the pressure plate.

2. The copper busbar positioning and welding fixture according to claim 1, characterized in that, The inner top unit includes an inner top slider and an inner top clamping block disposed on the left side of the contouring part. The inner top slider is connected to the side wall of the contouring plate through an elastic element. The inner top slider includes a first inner top and a second inner top disposed from top to bottom. The outer top unit includes an outer top slide rail and an outer top slider that is slidably fitted on the outer top slide rail. The outer top slider extends toward the inner top unit and is provided with a first outer top and a second outer top. The first outer top is located above the second outer top, and an outer top locking member is provided on the outer top slider.

3. The copper busbar positioning and welding fixture according to claim 2, characterized in that, The inner top clamping block includes a clamping arm and a clamping drive unit that causes the clamping arm to open or close. The clamping arm includes a first limiting arm and a second limiting arm. The sidewalls of the first limiting arm and the second limiting arm are provided with slots. When the first limiting arm and the second limiting arm are closed, the two slots are closed to form a limiting groove. The limiting groove is adapted to the shape and size of part of the top of the copper busbar. The first inner top is located between the first limiting arm and the second limiting arm.

4. The copper busbar positioning and welding fixture according to claim 3, characterized in that, A return spring is connected between the first limiting arm and the second limiting arm, and the clamping drive unit causes the first limiting arm and the second limiting arm to swing through the pusher.

5. The copper busbar positioning and welding fixture according to claim 4, characterized in that, The clamping drive unit is a telescopic cylinder. The telescopic end of the telescopic cylinder is connected to the pusher. The first limiting arm and the second limiting arm are both provided with rollers at the ends near the pusher. The cylinder causes the pusher to push the two rollers to rotate simultaneously, so as to ensure that the first limiting arm and the second limiting arm swing at the same time.

6. The copper busbar positioning and welding fixture according to claim 1, characterized in that, The aforementioned contouring parts are equidistantly distributed and do not interfere with each other.

7. The copper busbar positioning and welding fixture according to claim 1, characterized in that, It also includes an air knife, which is disposed on one side of the longitudinal horizontal moving mechanism; Each of the copper nozzle structures is equipped with an air blowing tube.

8. The copper busbar positioning and welding fixture according to claim 1, characterized in that, The contour plate is provided with positioning pins; The pressure plate has positioning holes that are adapted to the shape and size of the positioning pin.

9. The copper busbar positioning and welding fixture according to claim 2, characterized in that, A limit mechanism is provided on the side of the second inner top near the second outer top; The top surface of the mounting plate is embedded with a positioning block, the top of which protrudes from the surface of the mounting plate and forms a positioning groove.

10. The copper busbar positioning and welding fixture according to claim 1, characterized in that, It also includes a fixed frame, the longitudinal horizontal moving mechanism is horizontally mounted on the fixed frame, and the lifting mechanism is vertically mounted on the fixed frame and located outside the mounting plate; The fixing frame is also provided with a longitudinal guide rail, and the bottom of the mounting plate is provided with a longitudinal slider that matches the longitudinal guide rail; the fixing frame is provided with a longitudinal limiting component to limit the maximum horizontal displacement of the longitudinal slider.

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