Automatic copper bar welding machine

Abstract

This invention relates to the field of welding processing technology, and in particular to an automatic copper busbar welding machine; it includes a frame and a base plate; a base is fixedly installed on the base plate, and an inclined plate is installed at an angle on the base plate. A worktable is provided on the inclined plate, and a shaping mechanism and a smoothing mechanism are provided on the worktable; the invention uses the inclined plate to allow the copper busbar to slide down to the limiting block under gravity to achieve coarse length positioning, and cooperates with the pushing part to perform fine length positioning. The pushing part drives the side pushing block to synchronously push the copper busbar to align in the width direction, and the lower pressing part drives the pressure plate to press the non-welding area, avoiding interlayer misalignment caused by the gripper's handling and transfer; at the same time, the upper electrode block descends to push the shaping block, so that the shaping block smooths the warped edge of the copper busbar end during the movement of the shaping block, eliminating interlayer gaps, and cooperates with the lower electrode block to complete the welding when the power is applied for heating, thereby ensuring the bonding quality, welding strength and conductivity of the weld interface.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, and in particular to an automatic copper busbar welding machine. Background Technology

[0002] Soft copper busbars, also known as copper foil flexible connectors or laminated flexible busbars, are a new type of conductive connector formed by laminating and welding multiple layers of copper foil. The two ends of the soft copper busbar are hard welded areas, while the middle section maintains a loosely laminated state of copper foil. It has both good conductivity and excellent flexibility, is bendable, vibration resistant, and can effectively absorb thermal expansion stress and mechanical vibration during equipment operation.

[0003] Polymer diffusion welding is the mainstream process for welding the ends of soft copper busbars. This technology achieves solid metallurgical bonding by allowing the atoms at the copper foil interface to diffuse into each other under high temperature and high pressure. The process flow is as follows: First, the operator stacks multiple layers of cut copper foil in a limiting groove, using the four side walls of the limiting groove to initially position the copper foil and align each layer horizontally. Then, the stacked copper busbar is removed as a whole by a robotic arm or manual clamping and moved to the welding station of the polymer diffusion welding machine, where it is placed between the upper and lower electrodes. Finally, the equipment applies high temperature and high pressure to the end area of ​​the copper busbar to complete the welding.

[0004] However, the following problems exist in the current soft copper busbar welding process: 1. For soft copper busbars with a small width, the contact area between the clamps and the copper busbar is limited, making it difficult to evenly transmit the clamping force to each layer of copper foil. This results in uneven stress within the stack, with each layer of copper foil maintaining its relative position only through natural friction. When the clamping force is unevenly distributed, relative sliding easily occurs, causing interlayer misalignment. After misalignment, the edges of each layer of the copper busbar are uneven, leading to poor interface bonding during subsequent welding, and a decrease in welding strength and dimensional accuracy.

[0005] 2. The clamping surface of the grippers has a limited width and uneven pressure distribution. The copper foil at the end edge is prone to bending upward or downward, forming a warped edge. This is because the edges of the stacked copper foil lack restraint. The clamping force acts on the middle of the stack, causing uneven force on the edges and bending. In the warped edge state, the ends of each layer of copper foil are not on the same plane and are wavy. During diffusion soldering, the pressure in the soldering area is used to press the warped copper foil back. However, the back pressure process will produce wrinkles or overlaps, further aggravating the interlayer misalignment, resulting in poor bonding of the soldering interface. Moreover, the warped edge increases the interlayer gap and the exposed area of ​​the copper foil edge. When the copper busbar is sent to the soldering station for high-temperature heating, the exposed copper foil surface at the warped edge quickly oxidizes to form a black oxide layer. The oxide layer hinders atomic diffusion, causing poor soldering or insufficient soldering strength. At the same time, it increases the contact resistance and affects the conductivity.

[0006] Therefore, for soft copper busbars with narrow widths, interlayer misalignment and edge warping are prone to occur when the clamps hold them, leading to poor bonding at the welding interface and high-temperature oxidation, which affects the welding strength and conductivity. This is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of the above problems, the present invention provides an automatic copper busbar welding machine to solve the aforementioned technical problems.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automatic copper busbar welding machine, comprising a frame and a base plate; a base is fixedly installed on the base plate, an inclined plate is inclinedly installed on the base plate, a worktable is provided on the inclined plate, and a shaping mechanism and a leveling mechanism are provided on the worktable.

[0009] As a preferred embodiment, an upper electrode block is slidably mounted above the worktable, and a lower electrode block is embedded in the worktable.

[0010] As a preferred embodiment, the shaping mechanism includes two sets of sliding components slidably mounted on the upper part of the worktable. Each set of sliding components consists of multiple side push blocks. A pressure plate is slidably provided above the worktable. Two limit blocks are slidably provided on the worktable. A pressing part is provided on the support plate. A pushing part and a squeezing part are provided on the inclined plate.

[0011] As a preferred embodiment, the leveling mechanism includes two L-shaped plates that are slidably mounted on the worktable. A shaping block is movably provided between the two L-shaped plates. Guide post one and guide post two are fixedly installed at both ends of the shaping block. Guide groove one and guide groove two are respectively provided on the L-shaped plates to slide and cooperate with guide post one and guide post two. A reset part is provided on the L-shaped plates.

[0012] As a preferred solution, the copper electrode is placed on the worktable and slides down to the right limit block for coarse positioning by gravity. The pushing part pushes the left limit block for fine positioning. The pushing part drives the side pushing block to align the width synchronously. The pressing part drives the pressure plate to press the non-welding area. The upper electrode block descends and pushes to flatten the warped edge at the end and then fits together. The upper electrode block continues to descend and applies pressure through the shaping block, and cooperates with the lower electrode block to be heated and welded.

[0013] As a preferred embodiment, the pushing part includes two slide blocks slidably mounted on the inclined plate. A connecting plate is fixedly mounted on the side push block in each set of sliding components. The opposite sides of the two connecting plates are fixedly connected to the corresponding slide blocks. A rectangular frame is fixedly mounted on the inclined plate. A cylinder two is fixedly mounted at the front end of the rectangular frame. The telescopic section of the cylinder two slides through the rectangular frame and is fixedly connected to the corresponding slide block.

[0014] As a preferred embodiment, a linkage is provided between the two slides. The linkage includes a spur gear rotatably mounted on an inclined plate. The spur gear meshes with two racks, which are located on the left and right sides of the spur gear, respectively. The two racks are fixedly connected to their respective slides.

[0015] As a preferred embodiment, a pair of pillars located on the right side of the inclined plate are fixedly installed on the base. A support plate is fixedly installed on the upper end of the pillars. A cylinder is fixedly installed on the support plate. The telescopic section of the cylinder slides through the support plate and is fixedly connected to the upper pole block.

[0016] As a preferred embodiment, the reset part includes a slider, with sliders fixedly installed on the opposite ends of the two guide posts, and fixed seats located on the left side of the sliders fixedly installed on the opposite ends of the two L-shaped plates, with reset springs provided between the fixed seats and the corresponding sliders.

[0017] As a preferred embodiment, a pair of slide rods are fixedly installed at the lower end of the L-shaped plate. The slide rods slide through the worktable, and each slide rod is fitted with a compression spring. The upper and lower ends of the compression springs are fixedly connected to the corresponding L-shaped plate and the worktable, respectively.

[0018] As a preferred embodiment, the pushing part includes two cylinders three fixedly installed at the left and right ends of the rectangular frame. The telescopic section of the cylinder three slides through the rectangular frame and is fixedly connected to the corresponding limiting block.

[0019] As a preferred embodiment, the pressing part includes a cylinder four fixedly installed on the support plate, and the telescopic section of the cylinder four slides through the support plate and is fixedly connected to the upper end of the pressure plate.

[0020] As a preferred embodiment, the first guide groove is inclined to the right from top to bottom, and the second guide groove is parallel to the worktable.

[0021] As a preferred embodiment, a ceramic roller is rotatably mounted on the shaping block.

[0022] The above-mentioned one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, the present invention uses an inclined plate to make the copper busbar slide down to the limiting block by gravity to achieve coarse length positioning, and cooperates with the pushing part to perform fine length positioning. The pushing part drives the side pushing block to push the copper busbar in the width direction to align synchronously, and the pressing part drives the pressure plate to press the non-welding area, avoiding interlayer misalignment caused by the gripper holding and transporting; at the same time, the upper electrode block descends to push the shaping block, so that the shaping block smooths the warped edge of the copper busbar end during the movement, eliminates interlayer gaps, and cooperates with the lower electrode block to complete the welding when the power is applied for heating, thereby ensuring the bonding quality, welding strength and conductivity of the welding interface.

[0023] Second, this invention solves the problem of interlayer misalignment caused by small contact area and uneven pressure of the grippers by using the pushing part to drive the side pushing block to synchronously push the copper busbar in the width direction and the pressing part to drive the pressure plate to press the non-welding area. This ensures that the edges of each layer of copper foil are neat before welding, thereby improving the bonding quality and dimensional accuracy of the welding interface.

[0024] Third, this invention uses the descending upper electrode block to push the shaping block, and guide post one and guide post two slide along guide groove one and guide groove two, so that the shaping block smooths out the warped edge at the end of the copper busbar during the movement process, and then fits and presses against the upper electrode block and the copper busbar, eliminating edge bending and interlayer gaps, avoiding wrinkles or overlaps of the warped edge during welding pressure, and reducing the exposed area of ​​the copper foil, thereby preventing high-temperature oxidation and ensuring welding strength and conductivity.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the pushing part of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the worktable of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure between the side pusher block and the copper busbar of the present invention;

[0031] Figure 5 This is a schematic diagram of the linkage mechanism of the present invention;

[0032] Figure 6 This is a schematic diagram of the smoothing mechanism of the present invention;

[0033] Figure 7 This is a structural diagram of the shaping block in its initial state according to the present invention.

[0034] Reference numerals: 10. Frame; 11. Base plate; 12. Inclined plate; 13. Worktable; 14. Upper pole block; 15. Lower pole block; 16. Support column; 17. Support plate; 18. Cylinder 1; 2. Shaping mechanism; 20. Side push block; 21. Pressure plate; 210. Cylinder 4; 22. Limiting block; 220. Cylinder 3; 4. Pushing part; 40. Slide seat; 41. Connecting plate; 42. Rectangular frame; 43. Cylinder 2; 5. Linkage part; 50. Spur gear; 51. Rack; 3. Leveling mechanism; 30. L-shaped plate; 300. Slide rod; 301. Compression spring; 31. Shaping block; 310. Ceramic roller; 32. Guide post 1; 33. Guide post 2; 34. Guide groove 1; 35. Guide groove 2; 6. Reset part; 60. Slider; 61. Fixed seat; 62. Reset spring. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, an automatic copper busbar welding machine includes a frame 10 and a base plate 11 mounted thereon; a base is fixedly mounted on the base plate 11, and an inclined plate 12 is inclined from left to right and downward on the base. A worktable 13 is provided on the inclined plate 12, and a shaping mechanism 2 and a smoothing mechanism 3 are provided on the worktable 13.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, an upper electrode block 14 is slidably disposed above the workbench 13, and a lower electrode block 15 is embedded in the workbench 13 at a position corresponding to the upper electrode block 14. A pair of support columns 16 located on the right side of the inclined plate 12 are fixedly installed on the base, and a support plate 17 is fixedly installed on the upper end of the support columns 16. A cylinder 18 is fixedly installed on the support plate 17, and the telescopic section of the cylinder 18 slides through the support plate 17 and is fixedly connected to the upper electrode block 14.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the shaping mechanism 2 includes two sets of sliding components slidably mounted on the upper end of the worktable 13. Each set of sliding components consists of multiple side push blocks 20. A pressure plate 21 is slidably disposed above the worktable 13 between the two sets of sliding components. The pressure plate 21 has slots that correspond one-to-one with the side push blocks 20. Two left and right distributed limiting blocks 22 are slidably disposed on the worktable 13. A pressing part is disposed on the support plate 17. A pushing part 4 and a squeezing part are disposed on the inclined plate 12.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the smoothing mechanism 3 includes two L-shaped plates 30 slidably mounted on the workbench 13. A shaping block 31 is movably arranged between the two L-shaped plates 30. Guide posts 1 32 and 2 33 are fixedly installed at both ends of the shaping block 31. Guide posts 1 32 and 2 33 are located on the left and right sides respectively. Guide grooves 1 34 and 2 35 corresponding to guide posts 1 32 and 2 33 are opened on the L-shaped plates 30 respectively. Guide posts 1 32 and 2 33 slide through the corresponding guide grooves 1 34 and 2 35 respectively. A reset part 6 is provided on the L-shaped plates 30. Only the upper electrode block 14, lower electrode block 15 and shaping block 31 are made of conductive and heat-conducting materials.

[0040] like Figure 1 and Figure 2 As shown, the pressing part includes a cylinder 210 fixedly installed on the support plate 17. The telescopic section of the cylinder 210 slides through the support plate 17 and is fixedly connected to the upper end of the pressure plate 21.

[0041] like Figure 1 and Figure 2 As shown, the pushing part includes two cylinders 220 fixedly installed at the left and right ends of the rectangular frame 42. The telescopic section of the cylinder 220 slides through the rectangular frame 42 and is fixedly connected to the corresponding limiting block 22.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, in specific operations, this embodiment is used to weld soft copper busbars that are narrow and short in length. These soft copper busbars are made of multiple layers of copper foil, and both ends need to be welded into hard areas while the middle section remains flexible.

[0043] First, the pre-stacked copper foil is placed on the worktable 13 on the inclined plate 12 by a robotic arm or manually. Since the inclined plate 12 is tilted from left to right and downward, the copper foil slides automatically to the right by its own weight until its right end abuts against the limit block 22 on the right side, thus achieving preliminary positioning in the length direction. The tilt angle is moderate, and the sliding process is smooth, avoiding misalignment between copper foil layers due to impact.

[0044] Next, the pushing part is activated, and the cylinder 3 220 on the left side of the rectangular frame 42 extends, pushing the left limit block 22 to move. It gently pushes the end of the copper busbar from the left, so that the right limit block 22 of the copper busbar is tightly attached, achieving complete alignment of the copper busbar in the length direction. Since the pushing direction is consistent with the component of gravity along the inclined plane, the required pushing force is very small and will not cause interlayer slippage.

[0045] Then, the pusher 4 is activated, which moves all the side pushers 20 in the same group along the worktable 13 toward the center. The side pushers 20 on both sides contact the edge of the copper busbar from different positions, pushing the copper busbar in the width direction to make the two sides flush.

[0046] After the copper busbar is aligned in both length and width directions, the pressing part is activated. The telescopic section of cylinder 210 drives the pressure plate 21 to move downward. The slot on the pressure plate 21 avoids the side push block 20, so that the pressure plate 21 can directly press the non-welded area of ​​the copper busbar. The pressing force is moderate, which can fix the position of the copper busbar without damaging the copper foil.

[0047] After positioning and fixing, the ends are smoothed. Cylinder 18 drives the upper electrode block 14 to descend. The lower end of the upper electrode block 14 first contacts the shaping block 31 of the smoothing mechanism 3. The shaping block 31 slides with the guide groove 34 and guide groove 35 on the L-shaped plate 30 through guide post 1 32 and guide post 2 33 respectively. As the upper electrode block 14 moves down, the shaping block 31 is kept in parallel with the worktable 13 and attached to the upper electrode block 14. During the movement of the shaping block 31, it rolls and contacts the edge of the copper busbar end, flattening any possible warped edges, so that the ends of each layer of copper foil are tightly attached and the gaps between layers are eliminated.

[0048] The upper electrode block 14 continues to descend, applying welding pressure to the end of the copper busbar through the shaping block 31 and the L-shaped plate 30. The upper electrode block 14, the lower electrode block 15, and the shaping block 31 are all conductive and heat-conducting materials. The welding current is conducted to the end of the copper busbar through the upper electrode block 14, the shaping block 31, and the L-shaped plate 30, so that the end is rapidly heated to the temperature required for polymer diffusion welding. Under high temperature and high pressure, the atoms at the copper foil interface diffuse into each other to form a solid metallurgical bond. After holding at the temperature for an appropriate time, the welding of the first end of the copper busbar is completed.

[0049] After welding, the heating power is turned off, and the pressure of the upper electrode block 14 is maintained or reduced to the holding pressure to allow the welded area to cool under constraint, reducing warping deformation. Once the temperature drops to a safe range, cylinder 18 drives the upper electrode block 14 to reset, and the shaping block 31 and L-shaped plate 30 return to their initial positions. The lower pressing part lifts the pressure plate 21, and the pushing part and the shifting part 4 reset.

[0050] Manually or with a robotic arm, the copper busbar is removed from the worktable 13, its orientation is changed so that the unwelded end faces the welding area, and it is placed back on the worktable 13. The above steps of positioning, fixing, smoothing, welding, and cooling are repeated to complete the welding of the second end.

[0051] Finally, the copper busbar was removed, and the welded areas at both ends became dense hard areas, while the middle section remained soft. The entire welding process sequentially completed gravity coarse positioning, length pushing fine positioning, width side pushing flushing, non-welded area clamping, end smoothing and compaction, electric welding, and pressure holding and cooling. This effectively solved the problems of clamping misalignment, edge warping, and high-temperature oxidation caused by the small size of narrow and short soft copper busbars, and realized automated welding of both ends sequentially.

[0052] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the pushing part 4 includes two slide blocks 40 slidably mounted on the inclined plate 12. A connecting plate 41 is fixedly mounted on the side push block 20 in each set of sliding components. The opposite sides of the two connecting plates 41 are fixedly connected to the corresponding slide blocks 40. A rectangular frame 42 is fixedly mounted on the inclined plate 12. A cylinder 43 is fixedly mounted at the front end of the rectangular frame 42. The telescopic section of the cylinder 43 slides through the rectangular frame 42 and is fixedly connected to the corresponding slide block 40.

[0053] like Figure 4 and Figure 5 As shown, a linkage part 5 is provided between the two slides 40. The linkage part 5 includes a spur gear 50 rotatably mounted on the inclined plate 12. The spur gear 50 meshes with two racks 51. The two racks 51 are located on the left and right sides of the spur gear 50, respectively, and the two racks 51 are fixedly connected to the corresponding slides 40.

[0054] like Figures 1 to 5 As shown, during specific operation, after the copper busbar is placed on the inclined plate 12 and its initial length positioning is completed, the shaping mechanism 2 starts working. The cylinder 43 on the inclined plate 12 is activated, and its extension section pushes a corresponding slide block 40 to move. The slide block 40, through the connecting plate 41 fixedly connected to it, drives all the side push blocks 20 in the same group to slide along the groove on the worktable 13 towards the copper busbar. At the same time, the movement of the slide block 40 is transmitted to the slide block 40 on the other side through the linkage part 5. The two slide blocks 40 are respectively fixedly connected to a rack 51. The two racks 51 mesh with the spur gear 50 in the middle. When one rack 51 moves with the slide block 40, the spur gear 50 rotates and drives the other rack 51 to move in the opposite direction, so that the slide block 40 on the other side, its connecting plate 41, and the side push blocks 20 move towards the copper busbar synchronously. The side push blocks 20 on both sides contact the edge of the copper busbar from different positions.

[0055] Due to the staggered distribution of the sliding grooves of the two sets of sliding components, the side push blocks 20 can apply force evenly from multiple points to push the copper busbars in the width direction, making the two sides of each layer of copper foil flush. The linkage part 5 ensures that the moving distance of the left and right side push blocks 20 is equal and the action is synchronized, avoiding the copper busbars from deflection or interlayer misalignment due to uneven pushing force on one side. After the side push blocks 20 move into place, they remain in position until the subsequent pressure plate 21 passes through the slot and presses the non-welded area of ​​the copper busbar. Only then will the side push blocks 20 be reset under the action of the cylinder 43. This shaping mechanism 2 achieves high-precision and synchronous alignment of narrow and short soft copper busbars in the width direction through the staggered distribution of the side push blocks 20 and the linkage structure of the gear rack 51.

[0056] like Figure 1 , Figure 2 and Figure 7 As shown, the reset part 6 includes a slider 60. The slider 60 is fixedly installed on the opposite ends of the two guide posts 33. The fixed seats 61 located on the left side of the slider 60 are fixedly installed on the opposite ends of the two L-shaped plates 30. A reset spring 62 is provided between the fixed seat 61 and the corresponding slider 60.

[0057] like Figure 2 , Figure 3 and Figure 7 As shown, a pair of slide rods 300 are fixedly installed at the lower end of the L-shaped plate 30. The slide rods 300 slide through the worktable 13. Each slide rod 300 is fitted with a compression spring 301. The upper and lower ends of the compression spring 301 are fixedly connected to the corresponding L-shaped plate 30 and the worktable 13, respectively.

[0058] like Figure 2 and Figure 7 As shown, the first guide groove 34 is inclined to the right from top to bottom, and the second guide groove 35 is parallel to the worktable 13.

[0059] like Figure 6 and Figure 7 As shown, a ceramic roller 310 is rotatably mounted on the shaping block 31.

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, during actual operation, after the copper busbar is positioned and clamped, the leveling mechanism 3 begins to work. The upper electrode block 14 descends under the drive of cylinder 18, and its lower end first contacts the shaping block 31. Since the guide groove 34 is inclined to the right from top to bottom, and the guide groove 35 is parallel to the worktable 13, when the upper electrode block 14 pushes the shaping block 31 downward, the guide post 32 slides along the inclined guide groove 34, and the guide post 33 slides along the horizontal guide groove 35, forcing the shaping block 31 to move downward. During the movement, it gradually rotates from an inclined state to a position parallel to the worktable 13. The slider 60 at the end of the guide post 33 moves with the shaping block 31, and the reset spring 62 connected to it is stretched. At this time, the slide rod 300 fixed at the lower end of the L-shaped plate 30 slides through the worktable 13. The compression spring 301 sleeved on the slide rod 300 provides an upward support force to the L-shaped plate 30. Therefore, in the initial stage of the upper pole block 14 pressing down, the L-shaped plate 30 does not move down. It only slides when the shaping block 31 is parallel to the worktable 13.

[0061] During the movement of the shaping block 31, the ceramic roller 310 rolls and contacts the edge of the copper busbar, flattening any warped edges and ensuring that the ends of each layer of copper foil are tightly attached. At the same time, the rolling action of the ceramic roller 310 reduces friction with the copper foil, avoids scratching the surface of the copper busbar, and ensures the flatness and surface quality after smoothing.

[0062] When the lower surface of the upper electrode block 14 is fully in contact with the upper surface of the shaping block 31, the upper electrode block 14 continues to descend. At this time, the supporting force of the compression spring 301 is insufficient to resist the pressure of the upper electrode block 14, and the L-shaped plate 30 moves downward along the slide bar 300 to apply the required pressure to the copper busbar.

[0063] After welding, the upper electrode block 14 is lifted, and the compression spring 301 pushes the L-shaped plate 30 to return to its original position. At the same time, the return spring 62 contracts, pulling the slider 60 and the second guide post 33 to slide in the opposite direction along the second guide groove 35, which drives the shaping block 31 to return to its initial position. The smoothing mechanism 3 uses the guide groove with a combination of inclination and horizontality to realize the horizontal downward pressing of the shaping block 31 and the rolling smoothing of the ceramic roller 310. The reset part 6 cooperates with the compression spring 301 to ensure that the automatic return is completed after the action is completed, effectively eliminating the warping defect at the end of the narrow and short soft copper busbar.

[0064] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0065] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic copper busbar welding machine, comprising a frame and a base plate; characterized in that: A base is fixedly installed on the base plate, an inclined plate is installed on the base at an angle, a worktable is provided on the inclined plate, and a shaping mechanism and a leveling mechanism are provided on the worktable; An upper electrode block is slidably mounted above the worktable, and a lower electrode block is embedded in the worktable. The shaping mechanism includes two sets of sliding components that are slidably mounted on the upper part of the worktable. Each set of sliding components consists of multiple side push blocks. A pressure plate is slidably mounted above the worktable. Two limit blocks are slidably mounted on the worktable. A pressing part is provided on the support plate. A pushing part and a squeezing part are provided on the inclined plate. The smoothing mechanism includes two L-shaped plates that are slidably mounted on the worktable. A shaping block is movably provided between the two L-shaped plates. Guide post one and guide post two are fixedly installed at both ends of the shaping block. Guide groove one and guide groove two are respectively provided on the L-shaped plates, which are slidably engaged with guide post one and guide post two. Guide groove one is inclined from top to bottom and to the right. Guide groove two is parallel to the worktable. A reset part is provided on the L-shaped plate. The pushing part includes two slide blocks that are slidably mounted on the inclined plate. A connecting plate is fixedly mounted on the side push block in each set of sliding components. The opposite sides of the two connecting plates are fixedly connected to the corresponding slide blocks. A rectangular frame is fixedly mounted on the inclined plate. A cylinder two is fixedly mounted at the front end of the rectangular frame. The telescopic section of the cylinder two slides through the rectangular frame and is fixedly connected to the corresponding slide block. A linkage is provided between the two slides. The linkage includes a spur gear rotatably mounted on an inclined plate. The spur gear meshes with two racks, which are located on the left and right sides of the spur gear, respectively. The two racks are fixedly connected to the corresponding slides. The reset part includes a slider, and sliders are fixedly installed on the opposite ends of the two guide posts. Fixed seats located on the left side of the sliders are fixedly installed on the opposite ends of the two L-shaped plates. A reset spring is provided between the fixed seat and the corresponding slider. A pair of slide rods are fixedly installed at the lower end of the L-shaped plate. The slide rods slide through the worktable. Each slide rod is fitted with a compression spring. The upper and lower ends of the compression springs are fixedly connected to the corresponding L-shaped plate and the worktable, respectively. After the copper electrode is placed on the worktable, it slides down to the right limit block for coarse positioning by gravity. The pushing part pushes the left limit block for fine positioning. The pushing part drives the side pushing block to align the width synchronously. The pressing part drives the pressure plate to press the non-welding area. The upper electrode block descends and pushes to flatten the warped edge at the end and then fits. The upper electrode block continues to descend and applies pressure through the shaping block, and cooperates with the lower electrode block to be heated and welded.

2. The automatic copper busbar welding machine according to claim 1, characterized in that: A pair of pillars located on the right side of the inclined plate are fixedly installed on the base. A support plate is fixedly installed on the upper end of the pillars. A cylinder is fixedly installed on the support plate. The telescopic section of the cylinder slides through the support plate and is fixedly connected to the upper pole block.

3. The automatic copper busbar welding machine according to claim 1, characterized in that: The pushing part includes two cylinders three fixedly installed at the left and right ends of the rectangular frame. The telescopic section of the cylinder three slides through the rectangular frame and is fixedly connected to the corresponding limiting block.

4. The automatic copper busbar welding machine according to claim 1, characterized in that: The pressing part includes a cylinder four that is fixedly installed on the support plate. The telescopic section of the cylinder four slides through the support plate and is fixedly connected to the upper end of the pressure plate.

5. The automatic copper busbar welding machine according to claim 1, characterized in that: A ceramic roller is rotatably mounted on the shaping block.

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