Automatic welding and stamping production line for soft copper bars

Abstract

The invention discloses an automatic welding and stamping production line for a soft copper bar. The automatic welding and stamping production line comprises an automatic welding unit, an automatic stamping unit and a cooling device, the automatic welding unit comprises at least one set of automatic stacking and welding device. The automatic stacking and welding device comprises a copper strip automatic unwinding and cutting mechanism, a copper bar tidying and stacking mechanism, a conductive matching end welding mechanism and a copper bar turnover welding mechanism. The cooling device comprises a cooling box and a copper bar cooling clamp; the automatic punching unit comprises a conductive matching end punching mechanism, a copper bar punching turnover mechanism and a discharging mechanism. The automatic production requirements of punching, stacking and tidying, welding, cooling and punching during soft copper bar forming are met, and the production efficiency and the product percent of pass are remarkably improved. And through the three-direction matching material stacking and tidying design, the copper bar stacking and tidying degree is guaranteed, it is ensured that the welding quality is reliable and stable, and secondary tidying and milling work does not need to be conducted. And online cooling efficient hand changing can be achieved, and operation cooperation is efficient and stable.

Description

Technical Field

[0001] This invention relates to an automated welding and stamping production line for soft copper busbars, belonging to the technical field of soft copper busbar production lines. Background Technology

[0002] New energy vehicle battery modules need to be connected to each other. Due to the requirements of high current conduction and high vibration application environment, soft copper busbars have emerged as conductive connectors that can replace traditional rigid copper busbars and high-voltage cables.

[0003] When forming soft copper busbars, they are made of several thin copper sheets stacked together to form at least five layers of stacked structure. Then, they are formed by welding at both ends to form spaced conductive mating ends. Finally, locking holes need to be stamped on the conductive mating ends.

[0004] In the traditional soft copper busbar forming process design, a composite of multiple copper film materials is used for integral punching. Copper film materials have a certain degree of flexibility, and the punching process of multiple film materials will cause edge tilting and deformation, resulting in large edge errors of the stacked structure. During the later stages of the product, such as plastic wrapping and sleeve, the plastic wrapping and sleeve are easily damaged.

[0005] In addition, the composite structure requires welding, cooling and punching operations. The composite structure itself has uneven edges, the welding quality at the rear end cannot be guaranteed, and the locking hole position also has a large deviation. At the same time, cooling is required after welding. The traditional method is to drop it directly into the water tank. When punching is performed, it is necessary to pick it up from the water tank and then transfer it, which is very labor-intensive and time-consuming.

[0006] Currently, most soft copper busbar forming production lines use a design that separates welding and stamping. After welding and cooling, a second manual water filtration is required for turnover, which affects the production efficiency of soft copper busbars. In addition, some production processes with high requirements for soft copper busbars require additional milling processes due to edge errors, resulting in a longer production cycle. Furthermore, efficient turnover cannot be achieved during the punching operation at the back end, affecting production and market competitiveness. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of the prior art. In view of the problems of uneven edges of the stacked structure and the impact of transportation and turnover on product quality and production efficiency during welding and punching of traditional soft copper busbars, an automated welding and stamping production line for soft copper busbars is proposed.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automated welding and stamping production line for soft copper busbars includes an automated welding unit, an automated stamping unit, and a cooling device located between the automated welding unit and the automated stamping unit; The automated welding unit includes at least one set of automated stacking welding devices. Each automated stacking welding device includes an automatic copper strip unwinding and cutting mechanism, a copper busbar straightening and stacking mechanism, a conductive mating end welding mechanism, and a copper busbar turnover welding mechanism. The copper busbar straightening and stacking mechanism includes a copper busbar stacking carrier for receiving and stacking the copper strip from the automatic unwinding and cutting mechanism, and a copper busbar straightening group for straightening the stacked copper busbars on the stacking carrier. The straightening operation includes straightening the relative sidewalls and relative endwalls of the stacked copper busbars. The conductive mating end welding mechanism includes a welding station. The copper busbar turnover welding mechanism includes a copper busbar clamping and picking unit for clamping and rotating the copper busbars between the copper busbar stacking carrier and the welding station. The copper busbar clamping and picking unit has rotational and flipping displacement capabilities. The cooling device includes a cooling box and a copper busbar cooling clamp with rotational displacement located on top of the cooling box. When the copper busbar cooling clamp is rotating, the conductive mating end has an immersion displacement that is immersed in the cooling medium in the cooling box, and the copper busbar clamping and picking part has a hand-changing displacement that is relative to the copper busbar cooling clamp. The automated stamping unit includes a conductive mating end punching mechanism, a copper busbar stamping turnover mechanism, and an unloading mechanism. The conductive mating end punching mechanism includes a punching station. The copper busbar stamping turnover mechanism includes a copper busbar clamping and transfer part for clamping and rotating the copper busbar between the copper busbar cooling fixture and the punching station. The copper busbar clamping and transfer part has a rotational and flipping displacement. The unloading mechanism includes an unloading conveyor belt. The copper busbar clamping and transfer part has an unloading turnover displacement between the punching station and the unloading conveyor belt, or the unloading conveyor belt is provided with a finished product turnover unloading part for picking up finished products from the punching station and unloading them.

[0009] Preferably, the copper busbar stacking carrier includes a bearing wall for supporting the stacked copper busbars, a first side wall for limiting one side wall of the stacked copper busbars, and an end wall support wall for limiting one end wall of the stacked copper busbars. The copper busbar stacking carrier has rotational displacement. In the rotational displacement state of the copper busbar stacking carrier, the bearing wall has a horizontal material-bearing position and a vertical alignment position. In the alignment position, the end wall support wall is located at the bottom of the bearing wall. The copper busbar alignment assembly includes an alignment carrier having a horizontal relative displacement with the first side baffle, a second side baffle disposed on the alignment carrier, a first alignment end penetrating the second side baffle and having a horizontal reciprocating displacement toward the first side baffle, a second alignment end disposed on the copper busbar stacking carrier and having a linear reciprocating displacement toward the bearing wall, and a third alignment end for driving the end wall support wall to linearly displace along the direction of the relative end wall.

[0010] Preferably, the copper busbar alignment and stacking mechanism includes a mating side baffle that is relatively fixed in position to the material receiving station. In the material receiving station, the mating side baffle is arranged opposite to the first side baffle.

[0011] Preferably, the automated welding unit includes two sets of automated stacked welding devices, and the copper busbar alignment and stacking mechanism of the two sets of automated stacked welding devices shares the automatic unwinding and cutting mechanism of the copper strip.

[0012] Preferably, the copper busbar stacking carrier includes a bearing wall for supporting the stacked copper busbars, a first side wall for limiting one side wall of the stacked copper busbars, and an end wall support wall for limiting one end wall of the stacked copper busbars. The copper busbar stacking carrier has rotational displacement. In the rotational displacement state of the copper busbar stacking carrier, the bearing wall has a horizontal material-bearing position and a vertical alignment position. In the alignment position, the end wall support wall is located at the bottom of the bearing wall. The copper busbar alignment assembly includes an alignment carrier having a horizontal relative displacement with the first side baffle, a second side baffle disposed on the alignment carrier, a first alignment end penetrating the second side baffle and having a horizontal reciprocating displacement toward the first side baffle, a second alignment end disposed on the copper busbar stacking carrier and having a linear reciprocating displacement toward the bearing wall, and a third alignment end for driving the end wall support wall to linearly displace along the direction relative to the end wall. The alignment carriers of the two sets of automated stacking welding devices are fixed relative to each other, and a linkage carrier with linear displacement is provided between the two alignment carriers. The copper busbar stacking carriers corresponding to and cooperating with the alignment carriers are respectively provided on the two opposite walls of the linkage carrier. Any copper busbar stacking carrier has a cooperating displacement relative to the automatic unwinding and cutting mechanism of the copper strip under the displacement drive of the linkage carrier.

[0013] Preferably, the automated welding unit includes a finished welded copper busbar conveyor line equipped with a copper busbar carrier, the discharge end of the finished welded copper busbar conveyor line extends to the cooling device, and the finished welded copper busbar conveyor line is located within the turnover range of the copper busbar clamping and picking parts of the two sets of automated stacked welding devices; The copper busbar clamping and transfer unit has a turnover material displacement function between the welded finished copper busbar conveying line and the copper busbar cooling fixture.

[0014] Preferably, the automated stamping unit includes a copper busbar secondary positioning mechanism, which includes a horizontal steering carrier with rotational displacement, a copper busbar storage tank on the horizontal steering carrier, and a positioning protrusion at one end of the copper busbar storage tank; The copper busbar clamping and transfer unit has a turnover displacement between the copper busbar cooling clamp and the horizontal steering carrier, and a turnover displacement between the horizontal steering carrier and the punching station.

[0015] Preferably, the punching station includes a punching support base, and the punching support base is provided with a punching loading chamber and a pick-up and put-down clearance space connected to the punching loading chamber; The outer periphery of the punching loading chamber is provided with side wall positioning barriers and end wall positioning barriers, and the punching support base is provided with at least one clamping and locking part that has horizontal linear displacement and cooperates with the side wall positioning barriers.

[0016] Preferably, the finished product turnover unloading section includes a displacement slide with linear displacement toward the punching station, which is disposed on the unloading conveyor belt, and a copper busbar unloading clamp disposed on the displacement slide.

[0017] Preferably, the automatic unwinding and cutting mechanism for copper strip includes an unwinding frame, a strip traction seat with linear reciprocating motion, a copper strip cutting section disposed on the strip traction seat, and an inclined discharge guide section located at the discharge end of the copper strip cutting section.

[0018] The beneficial effects of this invention are mainly reflected in: 1. It meets the automated production needs of soft copper busbar punching, stacking and arranging, welding, cooling and punching, and significantly improves production efficiency and product qualification rate.

[0019] 2. The three-way matching stacking and straightening design ensures the straightness of the copper busbar stacking, guaranteeing reliable and stable welding quality, and eliminating the need for secondary straightening and milling operations.

[0020] 3. It can achieve efficient online cooling and handover, and its operation is efficient and stable.

[0021] 4. The sequential punching process, combined with the design of feeding positioning and secondary feeding turnover positioning, ensures the punching and forming accuracy, while the unloading operation is also relatively efficient and smooth. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the automated welding and stamping production line for soft copper busbars of the present invention.

[0023] Figure 2 This is a side view of the automated welding and stamping production line for soft copper busbars according to the present invention.

[0024] Figure 3This is a top view of the automated welding and stamping production line for soft copper busbars according to the present invention.

[0025] Figure 4 This is a schematic diagram of the automated welding unit and cooling device in the automated welding and stamping production line for soft copper busbars of the present invention.

[0026] Figure 5 This is a schematic diagram of the automated stacking welding device in the automated welding and stamping production line for soft copper busbars of the present invention.

[0027] Figure 6 This is a schematic diagram of the automatic unwinding and cutting mechanism for copper strip and the copper busbar straightening and stacking mechanism in the automated welding and stamping production line for soft copper busbars of the present invention.

[0028] Figure 7 This is a schematic diagram of the material traction seat in the automated welding and stamping production line for soft copper busbars of the present invention.

[0029] Figure 8 This is a schematic diagram of the copper busbar alignment and stacking mechanism in the automated welding and stamping production line for soft copper busbars of the present invention.

[0030] Figure 9 This is a schematic diagram of a preferred embodiment of the copper busbar alignment and stacking mechanism in the automated welding and stamping production line of the present invention.

[0031] Figure 10 This is a schematic diagram of another perspective of the preferred embodiment of the copper busbar alignment and stacking mechanism in the automated welding and stamping production line of the soft copper busbar of the present invention.

[0032] Figure 11 This is a schematic diagram of the automated stamping unit in the automated welding and stamping production line for soft copper busbars of the present invention.

[0033] Figure 12 This is a schematic diagram of the unloading mechanism in the automated welding and stamping production line for soft copper busbars of the present invention.

[0034] Figure 13 This is a schematic diagram of the structure of the soft copper busbar of the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0037] This invention provides an automated welding and stamping production line for soft copper busbars, such as... Figures 1 to 12 As shown, it includes an automated welding unit 100, an automated stamping unit 200, and a cooling device 300 located between the automated welding unit and the automated stamping unit.

[0038] like Figure 13 As shown, the soft copper busbar 400 includes a side wall 410, an end wall 420, and a welded conductive mating end 430. The conductive mating end 430 has a punch 440. The automated welding unit 100 is used to weld the conductive mating end 30 after the copper busbars are stacked. After being cooled by the cooling device 300, it enters the automated stamping unit 200 to form the punch 440.

[0039] Specifically, the automated welding unit 100 includes at least one set of automated stacking welding devices 1, which includes an automatic unwinding and cutting mechanism for copper strips 2, a copper busbar straightening and stacking mechanism 3, a conductive mating end welding mechanism 4, and a copper busbar turnover welding mechanism 5.

[0040] The copper busbar straightening and stacking mechanism 3 includes a copper busbar stacking carrier 31 for receiving and stacking the copper strip from the automatic unwinding and cutting mechanism 2, and a copper busbar straightening group 32 for straightening the stacked copper busbars on the copper busbar stacking carrier 31. The straightening operation includes straightening the opposite sidewalls 410 and the opposite endwalls 420 of the stacked copper busbars. The conductive mating end welding mechanism 4 includes a welding station 40. The copper busbar turnover welding mechanism 5 includes a copper busbar clamping and picking part 50 for clamping and rotating the copper busbars between the copper busbar stacking carrier and the welding station. The copper busbar clamping and picking part has rotational and flipping displacement.

[0041] The cooling device 300 includes a cooling box 310 and a copper busbar cooling clamp 320 with rotational displacement located on top of the cooling box 310. When the copper busbar cooling clamp is rotating, the conductive mating end has an immersion displacement that is immersed in the cooling medium in the cooling box. The copper busbar clamping and picking part 50 has a hand-changing displacement that is matched with the copper busbar cooling clamp 320.

[0042] The automated stamping unit 200 includes a conductive mating end punching mechanism 6, a copper busbar stamping turnover mechanism 7, and an unloading mechanism 8. The conductive mating end punching mechanism 6 includes a punching station 60. The copper busbar stamping turnover mechanism 7 includes a copper busbar clamping and transfer part 70 for clamping and rotating the copper busbar between the copper busbar cooling fixture 320 and the punching station 60. The copper busbar clamping and transfer part 70 has a rotational and flipping displacement. The unloading mechanism 8 includes an unloading conveyor belt 80. The copper busbar clamping and transfer part has an unloading turnover displacement between the punching station and the unloading conveyor belt, or the unloading conveyor belt is provided with a finished product turnover unloading part 81 for picking up finished products from the punching station 60 and unloading them.

[0043] Detailed implementation process and principle explanation: During the automated welding and stamping of soft copper busbars 400, the automatic unwinding and cutting mechanism 2 of the copper strip feeds the copper strip and cuts it into copper busbar layers of the same size and specifications.

[0044] The copper busbar alignment and stacking mechanism 3 receives the copper busbar layers through the copper busbar stacking carrier 31, and the copper busbar layers are formed on the copper busbar stacking carrier 31 as follows: Figure 13 In the multi-layer stacked structure shown, when the stacked copper busbars meet the layer requirements, the copper busbar straightening group 32 performs a straightening operation. The straightening includes straightening the relative sidewalls 410 and the relative endwalls 420, so that the relative sidewalls 410 and the relative endwalls 420 of the stacked copper busbars are flush, ensuring the straightness of the stacked copper busbars.

[0045] After the stacked copper busbars are arranged, they are picked up by the copper busbar clamping and picking part 50 of the copper busbar turnover welding mechanism 5. After picking up, one end is placed on the welding station 40 for welding and fixing of the conductive mating end 430. Then, the copper busbar clamping and picking part 50 is rotated to change direction, so that the other conductive mating end 430 is welded and formed.

[0046] After the soft copper busbar is formed, it is at a high temperature. At this time, it is picked up by the copper busbar clamping and picking part 50 and then placed on the copper busbar cooling fixture 320 of the cooling device 300. The copper busbar cooling fixture 320 rotates so that the two conductive mating ends 430 are respectively immersed in the cooling medium of the cooling box 310 for cooling. After both conductive mating ends 430 are cooled, it is rotated. At this time, the soft copper busbar is in a horizontal state.

[0047] The copper busbar stamping turnover mechanism 7 of the automated stamping unit 200 picks up the current soft copper busbar from the hand, and the copper busbar clamping and transfer part 70 picks up the soft copper busbar on the copper busbar cooling fixture 320 and places it on the punching station 60 for stamping. Generally, two punches 440 are formed simultaneously. However, due to the characteristics of the layered structure, simultaneous punching will cause a certain accuracy deviation. In this case, a two-step forming process design is adopted. That is, one punch 440 is formed first, and then the copper busbar clamping and transfer part 70 picks it up and reverses its position to form another punch 440. This improves the forming accuracy.

[0048] After the soft copper busbar is welded and stamped, the finished product is picked up by the copper busbar clamping and transfer part 70 and placed on the unloading conveyor belt 80, or it is picked up and unloaded by the finished product turnover unloading part 81.

[0049] In one specific embodiment, such as Figures 8 to 10 As shown, the copper busbar stacking carrier 31 includes a bearing wall 311 for supporting the stacked copper busbars, a first side wall 312 for limiting one side wall of the stacked copper busbars, and an end wall support wall 313 for limiting one end wall of the stacked copper busbars. The copper busbar stacking carrier 31 has rotational displacement. In the rotational displacement state of the copper busbar stacking carrier, the bearing wall 311 has a horizontal material-bearing position and a vertical alignment position. In the alignment position, the end wall support wall 313 is located at the bottom of the bearing wall 311.

[0050] The copper busbar alignment assembly 32 includes an alignment carrier 320 having a horizontal relative displacement with the first side baffle, a second side baffle 321 disposed on the alignment carrier, a first alignment end 322 penetrating the second side baffle and having a horizontal reciprocating displacement toward the first side baffle, a second alignment end 323 disposed on the copper busbar stacking carrier and having a linear reciprocating displacement toward the bearing wall, and a third alignment end 324 for driving the end wall support wall to linearly displace along the direction of the relative end wall.

[0051] Detailed implementation process and principle explanation: When the copper busbar stacking carrier 31 receives the copper busbar layers, the carrier wall 311 is in a horizontal material receiving position. At this time, the copper strip automatic unwinding and cutting mechanism 2 delivers the material onto the carrier wall 311, and is blocked and limited by the first side baffle wall 312 and the end wall support wall 313, so that the copper busbar layers are stacked sequentially on the carrier wall 311. After the stacking is completed, the second straightening end 323 moves toward the first side baffle wall 312, thereby clamping the stacked copper busbar.

[0052] During the straightening operation, the copper busbar stacking carrier 31 rotates and shifts to a straightening position where the supporting wall 311 is vertical. At this point, the stacked copper busbar is vertical, and its stacking direction is limited between the supporting wall 311 and the second straightening end 323. The bottom is supported by the end wall support wall 313 on the third straightening end 324, and the two side walls are limited between the first side baffle wall 312 and the second side baffle wall 321. During straightening, the third straightening end 324 straightens the end wall by moving up and down, and straightens the side wall by moving horizontally back and forth on the first straightening end 322. The relative back and forth movement of the second straightening end towards the supporting wall 311 is used to prevent the copper busbar from deforming. At the same time, the first straightening end and the second straightening end make cross-contact contact with the copper busbar, and the third straightening end 324 straightens independently by moving up and down, thus meeting the straightening requirements.

[0053] To explain in more detail, during the alignment operation, the first and second alignment ends first confine the vertical copper busbars to a limited space, thus providing a fitting gap. At this time, the third alignment end performs frequent lifting and lowering operations, and the end wall support wall 313 aligns the end wall. After alignment is completed, the first and second alignment ends perform cross-type reciprocating alignment operations. Finally, after the first alignment end is in place, the second alignment end performs crimping and locking.

[0054] After the sorting is completed, the straightening carrier 320 separates from the first side wall, thus providing a picking space. The carrier wall 311 and the second straightening end are respectively equipped with clearance slots. The copper busbar clamping and picking part 50 can clamp the copper busbar through the clearance slots. After it is picked up and fixed, the copper busbar stack carrier 31 releases the copper busbar.

[0055] In one specific embodiment, the copper busbar alignment and stacking mechanism 3 includes a mating side baffle 33 that is relatively fixed in position to the material receiving station. When the material receiving station is in position, the mating side baffle is arranged opposite to the first side baffle.

[0056] By cooperating with the design of the side baffle 33, the material receiving station can form a relative side baffle limit with the first side baffle, ensuring reliable material receiving and preventing the copper busbar from falling after being stacked high.

[0057] In one specific embodiment, such as Figures 1 to 4 As shown, the automated welding unit 100 includes two sets of automated stacked welding devices 1, such as... Figure 3 , Figure 4 , Figure 9 , Figure 10 As shown, the copper busbar straightening and stacking mechanism 3 of the two sets of automated stacking welding devices 1 share the automatic unwinding and cutting mechanism 2 of copper strip.

[0058] Two automated stacked welding devices 1 are used to meet the speed matching requirements with the stamping station, that is, to achieve a two-to-one process operation coordination, which satisfies the automation efficiency and equipment utilization rate. In addition, the shared automatic unwinding and cutting mechanism 2 of copper strip can reduce equipment costs and is also more convenient to lay out.

[0059] In one specific embodiment, such as Figure 9 and Figure 10 As shown, the alignment carriers 320 of the two sets of automated stacking welding devices 1 are fixed relative to each other. A linkage carrier 34 with linear displacement is provided between the two alignment carriers. Copper busbar stacking carriers 31 corresponding to the alignment carriers are provided on the two opposite walls of the linkage carrier 34. Any copper busbar stacking carrier has a matching displacement relative to the automatic unwinding and cutting mechanism of copper strip under the displacement drive of the linkage carrier.

[0060] That is, the linkage carrier 34 is used to realize the simultaneous mounting of two copper busbar stacked carriers 31, and the displacement switching of the linkage carrier 34 is used to realize the alignment and cooperation of their respective material bearing positions.

[0061] In one specific embodiment, the automated welding unit 100 includes a finished welded copper busbar conveyor line 12 equipped with a copper busbar carrier 11. The discharge end of the finished welded copper busbar conveyor line extends to the cooling device 300. The finished welded copper busbar conveyor line is located within the turnover range of the copper busbar clamping and picking parts of two sets of automated stacked welding devices.

[0062] The copper busbar clamping and transfer unit has the ability to move turnover material between the finished welded copper busbar conveying line and the copper busbar cooling fixture.

[0063] Detailed implementation process and principle explanation: The finished copper busbar conveyor line 12 is used to achieve shared operation with the cooling device 300. Each automated stacking welding device 1 unloads and transfers material onto the copper busbar carrier 11 through the copper busbar clamping and picking unit.

[0064] The copper busbar clamping and transfer section is used to pick up and put down materials between the finished copper busbar conveyor line 12 and the cooling device 300. This design makes the material turnover operation more efficient and smooth.

[0065] In one specific embodiment, such as Figure 11 and Figure 12 As shown, the automated stamping unit 200 includes a copper busbar secondary positioning mechanism 9, which includes a horizontal steering carrier 91 with rotational displacement. The horizontal steering carrier is provided with a copper busbar storage tank 92, and one end of the copper busbar storage tank is provided with a positioning protrusion 920.

[0066] The copper busbar clamping and transfer unit 70 has a turnover displacement between the copper busbar cooling clamp and the horizontal steering carrier, and a turnover displacement between the horizontal steering carrier and the punching station.

[0067] Specifically, the soft copper busbar has a certain degree of self-weight and flexible deformation. In order to ensure the processing accuracy of the two punches, a method of changing hands and direction for shaping is adopted. That is, after one punch is formed, the copper busbar clamping and transfer part 70 picks it up and places it horizontally on the horizontal turning carrier 91. It is positioned by the positioning protrusion 920, and then rotates 180° horizontally to turn and feed material. The copper busbar clamping and transfer part 70 picks up the material on it and then feeds and punches.

[0068] In one specific embodiment, such as Figure 12 As shown, the punching station 60 includes a punching support base 61, a punching loading chamber 62 and a pick-up and drop-off space 63 connected to the punching loading chamber.

[0069] The outer periphery of the punching loading chamber 62 is provided with a side wall positioning baffle 621 and an end wall positioning baffle 622. The punching support base 61 is provided with at least one clamping and locking part 610 that has horizontal linear displacement and cooperates with the side wall positioning baffle.

[0070] Detailed implementation process and principle explanation: During the punching operation, the copper busbar clamping and transfer unit 70 releases or picks up the material through the pick-up and drop clearance space 63. When releasing the material, the material is limited by the side wall positioning sidebar 621 and the end wall positioning sidebar 622, and is clamped and locked by the clamping and locking unit 610, thus ensuring the accuracy of the feeding position.

[0071] In one specific embodiment, the finished product turnover unloading unit 81 includes a displacement slide 811 disposed on the unloading conveyor belt and having linear displacement toward the punching station, and a copper busbar unloading clamp 812 disposed on the displacement slide.

[0072] Specifically, the copper busbar unloading fixture 812 picks up products from the punching station 60 through the pick-and-place clearance space 63. It also has lifting displacement for detaching from the punching station 60 and lowering the height of the placed materials.

[0073] In addition, the finished product turnover unloading section 81 is mainly used to undertake the turnover steps of the copper busbar clamping and transfer section 70, so that the copper busbar clamping and transfer section 70 can have sufficient time to place and pick up the cooled workpiece, thus significantly improving the overall operation and turnover efficiency.

[0074] In one specific embodiment, such as Figure 6 and Figure 7 As shown, the automatic unwinding and cutting mechanism 2 for copper strip includes an unwinding rack 21, a strip traction seat 22 with linear reciprocating motion, a copper strip cutting section 23 disposed on the strip traction seat, and an inclined discharge guide section 24 located at the discharge end of the copper strip cutting section.

[0075] Specifically, the copper strip is unwound by the unwinding rack 21, and its free end is pulled back and forth by the strip traction seat 22. The strip is cut at equal intervals by the copper strip cutting part 23, and the cut copper busbar is guided out by the inclined discharge guide part 24.

[0076] The automatic unwinding and cutting mechanism 2 for copper strip is an automated equidistant punching and feeding device for strip, which is a commonly used device in the machining field. It will not be described in detail here. Any mechanism that satisfies the automatic punching and feeding of copper busbar stacking carrier 31 is within the protection scope of this case.

[0077] The above description demonstrates that the system meets the automated production requirements for soft copper busbar punching, stacking, welding, cooling, and punching, significantly improving both production efficiency and product qualification rate. The three-way compliant stacking design ensures the neatness of the copper busbar stacking, guaranteeing reliable and stable welding quality without the need for secondary milling. It enables efficient online cooling and manual changeover, resulting in highly efficient and stable operation. The sequential punching process, combined with loading positioning and secondary loading turnover positioning, ensures punching accuracy while also providing efficient and smooth unloading.

[0078] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0079] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. The soft copper bar automatic welding and stamping production line, characterized in that: comprising an automatic welding unit, an automatic stamping unit, and a cooling device between the automatic welding unit and the automatic stamping unit; the automatic welding unit comprises at least one set of automatic stacking welding device, the automatic stacking welding device comprises a copper material belt automatic unwinding and cutting mechanism, a copper bar alignment and stacking mechanism, a conductive adapter end welding mechanism, and a copper bar turnover welding mechanism; the copper bar alignment and stacking mechanism comprises a copper bar stacking carrier for receiving the discharged material of the copper material belt automatic unwinding and cutting mechanism for stacking, a copper bar alignment group for alignment work on the stacked copper bar on the copper bar stacking carrier, the alignment work including alignment of the opposite side walls and opposite end walls of the stacked copper bar, the conductive adapter end welding mechanism comprises a welding station, and the copper bar turnover welding mechanism comprises a copper bar clamping and picking-up part for copper bar clamping and turnover between the copper bar stacking carrier and the welding station, the copper bar clamping and picking-up part has a rotary and overturning displacement; the cooling device comprises a cooling box and a copper bar cooling clamp with a rotary displacement on the top of the cooling box, in the rotary state of the copper bar cooling clamp, the conductive adapter end has an immersion displacement immersed in the cooling medium of the cooling box, and the copper bar clamping and picking-up part has a hand-over displacement matched with the copper bar cooling clamp; the automatic stamping unit comprises a conductive adapter end punching mechanism, a copper bar stamping turnover mechanism, and a discharge mechanism, the conductive adapter end punching mechanism comprises a punching station, the copper bar stamping turnover mechanism comprises a copper bar clamping and transferring part for copper bar clamping and turnover between the copper bar cooling clamp and the punching station, the copper bar clamping and transferring part has a rotary and overturning displacement, and the discharge mechanism comprises a discharge conveyor belt, the copper bar clamping and transferring part has a discharge turnover displacement between the punching station and the discharge conveyor belt or a finished product turnover and discharge part is arranged on the discharge conveyor belt for picking up the finished product on the punching station.

2. The soft copper bar automatic welding and stamping production line according to claim 1, characterized in that: the copper bar stacking carrier comprises a bearing wall for supporting the stacked copper bar, a first side blocking wall for limiting one side wall of the stacked copper bar, and an end wall supporting wall for limiting one end wall of the stacked copper bar, the copper bar stacking carrier has a rotary displacement, in the rotary displacement state of the copper bar stacking carrier, the bearing wall has a horizontal material receiving station and a vertical alignment station, and in the alignment station, the end wall supporting wall is located at the bottom of the bearing wall; the copper bar alignment group comprises an alignment seat having a horizontal relative displacement with the first side blocking wall, a second side blocking wall arranged on the alignment seat and a first alignment end penetrating through the second side blocking wall and having a horizontal reciprocating displacement towards the first side blocking wall, a second alignment end arranged on the copper bar stacking carrier and having a linear reciprocating displacement towards the bearing wall, and a third alignment end for driving the end wall supporting wall to linearly displace in the opposite end wall direction. ​ 3. The soft copper bar automatic welding and punching production line according to claim 2, characterized in that: the copper bar alignment and stacking mechanism comprises a matching edge blocking wall fixed relative to the position of the material receiving station, and the matching edge blocking wall is arranged opposite to the first side blocking wall when the material receiving station.

4. The soft copper bar automatic welding and punching production line according to any one of claims 1-3, characterized in that: the automatic welding unit comprises two sets of the automatic stacking and welding device, and the copper bar alignment and stacking mechanisms of the two sets of the automatic stacking and welding device share the copper material strip automatic unwinding and cutting mechanism.

5. The soft copper bar automatic welding and punching production line according to claim 4, characterized in that: the copper bar stacking carrier comprises a bearing wall for supporting the stacked copper bar, a first side blocking wall for limiting one side wall of the stacked copper bar, and an end wall supporting wall for limiting one end wall of the stacked copper bar, the copper bar stacking carrier has rotary displacement, the bearing wall has a horizontal material receiving station and a vertical alignment station in the rotary displacement state of the copper bar stacking carrier, and the end wall supporting wall is located at the bottom of the bearing wall in the alignment station; the copper bar alignment group comprises an alignment carrier seat having horizontal reciprocal displacement relative to the first side blocking wall, a second side blocking wall arranged on the alignment carrier seat, a first alignment end penetrating the second side blocking wall and having horizontal reciprocal displacement towards the first side blocking wall, a second alignment end arranged on the copper bar stacking carrier and having linear reciprocal displacement towards the bearing wall, and a third alignment end for driving the end wall supporting wall to linearly displace along the opposite end wall direction; the alignment carrier seats of the two sets of the automatic stacking and welding device are fixed relative to each other, a linkage carrier seat having linear displacement is arranged between the two alignment carrier seats, the two opposite walls of the linkage carrier seat are respectively provided with the copper bar stacking carrier corresponding to the alignment carrier seat, and any copper bar stacking carrier has matching displacement relative to the copper material strip automatic unwinding and cutting mechanism under the displacement driving of the linkage carrier seat.

6. The soft copper bar automatic welding and punching production line according to claim 4, characterized in that: the automatic welding unit comprises a welded product copper bar conveying line having a copper bar carrier, the discharge end of the welded product copper bar conveying line extends to the cooling device, and the welded product copper bar conveying line is located within the turnover range of the copper bar clamping and picking part of the two sets of the automatic stacking and welding device; the copper bar clamping and transfer part has a turnover material displacement between the welded product copper bar conveying line and the copper bar cooling clamp.

7. The soft copper bar automatic welding and punching production line according to claim 1, characterized in that: the automatic punching unit comprises a copper bar secondary positioning mechanism, the copper bar secondary positioning mechanism comprises a horizontal turning carrier having rotary displacement, the horizontal turning carrier is provided with a copper bar storage tank, and one end of the copper bar storage tank is provided with a positioning protrusion; the copper bar clamping and transfer part has a turnover displacement between the copper bar cooling clamp and the horizontal turning carrier, and a turnover displacement between the horizontal turning carrier and the punching station.

8. The soft copper bar automatic welding and punching production line according to claim 7, characterized in that: the punching station comprises a punching support base, a punching loading slot chamber is arranged on the punching support base, and a taking and placing avoiding space is arranged in communication with the punching loading slot chamber; a side wall positioning edge stopper and an end wall positioning edge stopper are arranged on the outer periphery of the punching loading slot chamber, and at least one clamping locking part with horizontal linear displacement is arranged on the punching support base and matched with the side wall positioning edge stopper.

9. The soft copper bar automatic welding and punching production line according to claim 1, characterized in that: the finished product circulation and unloading part comprises a displacement slide table with linear displacement towards the punching station and arranged on the unloading conveying belt, and a copper bar unloading clamp arranged on the displacement slide table.

10. The soft copper bar automatic welding and punching production line according to claim 1, characterized in that: the copper material belt automatic unwinding and cutting mechanism comprises an unwinding material rack, a material belt traction seat with linear reciprocating displacement, a copper material belt cutting part arranged on the material belt traction seat, and an inclined material outlet guide part arranged at the material outlet end of the copper material belt cutting part.

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