A welding processing device for battery module processing and its operation method

Abstract

The present invention discloses a welding processing device for battery module processing and an operation method thereof, which relates to the technical field of battery module welding, and solves the problem that the position of the battery module pole and bus is difficult to calibrate when welding, and it is easy to deviate and shake during the welding process, which affects the conductive performance of the battery module after welding. At the same time, it solves the problem that the contact part between the pole and the bus is easy to produce empty packs when welding the battery module. The welding processing device for battery module processing includes an equipment box group, a battery conveying and lifting assembly, a laser cleaning welding mechanism and a control panel. In the present invention, the telescopic movement of the down-pressing part and the annular body can squeeze the bus on the one hand, and on the other hand, the hollow part inside the annular body is located on the outside of the pole and fits the edge of the pole, ensuring that the laser beam is more concentrated during the laser welding process, avoiding the generation of empty packs in the laser welding parts of the two, and further improving the conductive performance of the battery module.

Description

Technical Field

[0001] The present invention relates to the technical field of battery module welding, and in particular to a welding processing device for battery module processing and an operating method thereof. Background Art

[0002] A battery module is a battery assembly that is connected in series, parallel, or series-parallel and has only one pair of positive and negative output terminals. It is mainly used in equipment such as forklifts and sweeping robots. When manufacturing and processing battery modules, it is necessary to weld the poles (positive and negative poles) of multiple battery cells inside the battery module to the busbars to achieve a conductive connection in series, parallel, or series-parallel.

[0003] The existing Chinese patent application with publication number CN117066686A discloses a battery module double-sided welding device, including a conveyor line, a fixing device, a busbar welding and pressing device and a laser welding device; the conveyor line is used to carry the battery module placed laterally and convey it to the welding station; the fixing device fixes the battery module located at the welding station; two sets of busbar welding and pressing devices are relatively arranged on both sides of the welding station to press the busbars at both ends of the battery module; each set of busbar welding and pressing devices is provided with a plurality of welding heads, which are arranged one by one opposite to the plurality of poles on the battery module, and each welding head is provided with a through hole penetrating along the axial direction; two sets of laser welding devices are arranged on both sides of the conveyor line; the laser output by the laser welding device can pass through the through hole corresponding to the busbar welding and pressing device to realize the welding of the busbar; this invention, through multiple sets of laser heads, can simultaneously weld the busbars at both ends of the battery module, which is not only convenient to operate, but also improves the welding quality and welding efficiency.

[0004] However, the battery module welding device has the following defects when used:

[0005] 1. When the existing battery module welding device laser welds the poles and busbars of multiple groups of single cells, the busbar is set at the top of the battery pole part. When the traditional laser module (including the laser head, etc.) emits a laser beam for laser welding, the area where the laser beam is emitted covers the pole at the bottom of the busbar and is relatively scattered, which can easily lead to the formation of a hollow package in the part where the outer side of the pole contacts the busbar. At the same time, the position of the busbar in the welding state is difficult to calibrate, and it is easy to shift and shake during the welding process, causing the position of the weld to change multiple times, affecting the conductive performance of the battery module after welding;

[0006] 2. When the existing battery module welding device welds the pole and busbar of the battery module, the pole part of the battery module will adhere to the surface and absorb some dirt, oxides, etc. due to various processing processes. These dirt, oxides, etc. will seriously affect the conductivity and service life of the battery module when the busbar is subsequently welded to the outside of the pole. Summary of the invention

[0007] The object of the present invention is to provide a welding processing device for battery module processing and an operating method thereof to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The present invention provides a welding processing device for battery module processing, comprising an equipment box group, a battery conveying and lifting assembly, a laser cleaning and welding mechanism and a control panel. The top of the equipment box group is provided with a battery conveying and lifting assembly, the battery conveying and lifting assembly conveys the battery module to the bottom of the laser cleaning and welding mechanism, and the laser cleaning and welding mechanism is used to perform laser cleaning and welding operations. The laser cleaning and welding mechanism is installed on the outer side of the top of the equipment box group.

[0010] The laser cleaning and welding mechanism comprises:

[0011] An equipment rack, the equipment rack is installed on the outside of the top of the equipment box group, and two groups are provided, and one side of the two groups of equipment racks is connected to a control panel through a bracket;

[0012] A laser cleaning component, which is arranged at the inner top of a group of the equipment racks and performs laser cleaning operations on multiple groups of poles of the battery module, and multiple groups of laser cleaning modules are installed on the side of the laser cleaning component;

[0013] A laser welding assembly is installed on the inner top of another group of the equipment racks, and the busbar welding operation is performed on the battery module through a laser welding module installed on the side. The laser welding assembly is arranged on the side of the laser cleaning assembly, and a telescopic correction assembly is arranged on the outside of the laser welding assembly. The telescopic correction assembly squeezes the busbar to the top of the battery module pole.

[0014] As a preferred embodiment of the present invention, the battery transport lifting assembly includes:

[0015] The bottom support is installed at the edge of the top of the equipment box group by screws, and the top support is fixed with two sets of conveying slide rails, and the outer side of the conveying slide rails is provided with a conveying electric slider,

[0016] There are four groups of conveying electric sliders, and the tops of the four groups of conveying electric sliders are mounted with support plates by screws;

[0017] The inner concave plate is arranged at the center of the inner support plate, and multiple groups of induction pillars are installed at the angles on the top of the inner concave plate, and the top of the induction pillars supports a module placement plate,

[0018] The top support of the module placement plate is fixed with a battery module, and the bottom of the module placement plate is installed with a battery lifting assembly extending to the bottom of the support plate.

[0019] As a preferred embodiment of the present invention, the battery lifting assembly includes:

[0020] An inner cylinder, the inner cylinder is installed inside the support plate and extends to the bottom of the support plate, and a first motor is installed at the bottom of the inner cylinder;

[0021] A reciprocating screw rod is connected to the output end of the first motor and is rotatably connected to the inner bottom of the inner cylinder. The outer side of the reciprocating screw rod is connected to a lifting shaft rod through a ball bearing.

[0022] The lifting shaft rod is arranged to penetrate the inner column, and the top is installed at the center of the bottom of the module placement plate.

[0023] As a preferred solution of the present invention, the control panel is electrically connected to the key module, and the key module is installed on the side of the equipment rack.

[0024] Wherein, a side of the equipment frame close to the key module is rotatably connected with a movable door plate, and the movable door plate is arranged on the top of the key module.

[0025] As a preferred embodiment of the present invention, the laser cleaning component comprises:

[0026] A first longitudinal slide rail, wherein the first longitudinal slide rail is installed at the inner top of a group of the equipment racks, and two groups are provided, and first longitudinal electric sliders are provided at the bottoms of the two groups of the first longitudinal slide rails;

[0027] A transverse beam, wherein the transverse beam is installed at the bottom of the two groups of the first longitudinal electric sliders by screws, and multiple groups of first vertical slide rails are installed at the bottom of the transverse beam by screws, and the first vertical electric sliders are arranged on the sides of the first vertical slide rails;

[0028] A mounting component is mounted on the side of the first vertical electric slider by screws, and multiple groups of laser cleaning modules are fixedly mounted inside the mounting component, and multiple groups of laser cleaning modules arranged inside a group of the mounting components are electrically connected to a group of power modules through wires,

[0029] Wherein, the power module is installed on the outer side of the first vertical slide rail.

[0030] As a preferred embodiment of the present invention, the laser welding assembly comprises:

[0031] A second longitudinal slide rail, wherein the second longitudinal slide rail is installed at the inner top of another group of the equipment racks, and two groups are provided, and second longitudinal electric sliders are provided at the bottom of the two groups of the second longitudinal slide rails;

[0032] A mounting block, wherein the mounting block is mounted on the bottom of the second longitudinal electric slider by means of screws, and a transverse slide rail is fixedly mounted between the two groups of the mounting blocks, and a transverse electric slider is disposed at the bottom of the transverse slide rail;

[0033] A second vertical slide rail is installed at the bottom of the horizontal electric slider, and a second vertical electric slider is arranged on the side. A clamp is installed on the side of the second vertical electric slider by screws, and a laser welding module is installed inside the clamp.

[0034] As a preferred solution of the present invention, the laser welding module is electrically connected to another set of power modules installed on the outside of the second vertical slide rail, and telescopic correction components are installed on the left and right sides of the fixture.

[0035] Wherein, the telescopic correction component extends to the bottom of the laser welding module.

[0036] As a preferred embodiment of the present invention, the telescopic correction component includes:

[0037] An external frame, which is installed on the left and right sides of the clamp by screws, and is hollow inside. Vertical grooves are provided on the left and right sides of the external frame, and an extension rod slidably connected to the inside of the external frame is provided inside the vertical groove.

[0038] Wherein, the extension rod extends to the outside of the external frame;

[0039] A telescopic cylinder, the telescopic cylinder is installed on the side of the external frame, and the output end of the telescopic cylinder is connected to an extension rod;

[0040] A pressing piece is installed at the bottom of the extension rod by screws and is installed between the two groups of extension rods. A ring body is arranged at the center of the pressing piece. The center of the ring body is arranged to be hollow and is in the same vertical plane as the laser beam emitting part of the laser welding module.

[0041] As a preferred solution of the present invention, the pressing member is located at the bottom of the second vertical slide rail, and multiple groups of pressing balls are installed inside.

[0042] Wherein, a bus is fixedly pressed down at the bottom of the plurality of groups of downward pressing spheres, and a gap is left between the annular body and the bus.

[0043] The present invention also provides a method for manufacturing a welding processing device for battery module processing, including the welding processing device for battery module processing, comprising the following steps:

[0044] S1. First, the assembled battery module is placed on the top of the battery conveying and lifting assembly, and the battery module is sequentially transferred to the bottom of the laser cleaning assembly and the laser welding assembly through the battery conveying and lifting assembly, and the laser cleaning of the internal poles of the battery module and the welding of the poles and busbars after cleaning are respectively performed;

[0045] S2. When cleaning the pole part of the battery module, multiple groups of laser cleaning modules are used to perform laser cleaning on a row of multiple poles in a manner of operating simultaneously, which can improve the cleaning effect of the poles while ensuring the cleaning efficiency of the poles, and prevent dirt, oxides, etc. from adhering to the poles of the battery module;

[0046] S3. After the battery module pole part is cleaned, a corresponding number of busbars are placed and assembled on the outside of the pole by means of mechanical gripper transportation, so as to facilitate the subsequent welding operation of the two by laser welding assembly;

[0047] S4. When welding the battery module poles and busbars, the telescopic correction assembly operates to press down the busbars to ensure that the busbars will not deviate or shake during the welding process, thereby improving the welding accuracy. At the same time, the hollow part inside the telescopic correction assembly facilitates the penetration of the laser beam emitted by the laser welding module, limits the range of laser welding and improves the effect of laser welding, thus achieving better welding of battery module poles and busbars.

[0048] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0049] 1. In the welding processing device for battery module processing and its operation method, after the cleaning of the pole part of the battery module is completed, the cleaned pole and the bus need to be welded. At this time, the second vertical electric slider, the clamp and the laser welding module can be lifted and moved on the side of the second vertical slide rail, so that the laser welding module is close to the bus for laser welding operation. At the same time, when the clamp is lifted and moved, it cooperates with the telescopic cylinder to drive the telescopic movement of the down-pressing piece, the down-pressing sphere and the annular body, which can squeeze the bus to be welded, ensuring that the bus will not shift or shake during laser welding. The hollow part inside the annular body is located on the outside of the pole and fits the edge of the pole, ensuring that the laser beam is more concentrated during the laser welding process, improving the quality of laser welding between the pole and the bus, and no empty bag will be generated in the laser welding part of the two, further improving the conductivity of the battery module after welding;

[0050] 2. In the welding processing device and its operation method for battery module processing, before laser welding the poles and busbars of the battery module, the laser cleaning module can emit a laser beam to perform laser cleaning on the poles, which can effectively prevent the outer side from adhering or adsorbing dirt and oxides while ensuring the cleaning effect of the poles, thereby improving the conductivity of the poles and busbars after the subsequent welding is completed. At the same time, the top row of poles of the battery module can be laser cleaned at one time, further improving the efficiency of cleaning the poles of the battery module, thereby improving the efficiency of the entire battery module processing;

[0051] 3. In the welding processing device for battery module processing and its operation method, when the battery module is laser cleaned and welded, the battery module set and installed on the top of the module placement plate can be automatically transferred to the bottom of the laser cleaning module and the laser welding module for laser cleaning and welding operations. At the same time, during the laser cleaning and welding process, the battery module installed on the top of the module placement plate can be lifted and moved by the first motor driving the reciprocating screw rod and the lifting shaft rod at the output end to move the cleaning and welding position of the pole to one side of the camera end, ensuring that the processing flow of the battery module pole and bus can be recorded and photographed in real time, realizing automated battery module production and processing operations;

[0052] 4. In the welding processing device for battery module processing and its operation method, after laser cleaning and welding of the poles of the battery module, the upwardly moved module placement plate and battery module need to be returned to the initial position. At this time, it can be achieved through the rotation operation of the first motor, and the operation is simple and convenient. And after moving to the initial position, the induction pillar will sense the squeezing force and start the conveying electric slider to operate to realize the conveying operation, so as to avoid collision with the equipment frame or shaking and damage of the battery module during the subsequent conveying process due to failure to return to the original position or a short descending distance, thereby improving the safety of automated operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0054] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0056] Figure 2 It is a schematic structural diagram of the overall main view of the present invention;

[0057] Figure 3 It is a schematic structural diagram of the overall cross-section of the present invention;

[0058] Figure 4 It is a structural schematic diagram of the main view of the connection between the equipment box group and the battery conveying and lifting assembly of the present invention;

[0059] Figure 5 It is a structural schematic diagram of the side view of the connection between the equipment box group and the battery conveying and lifting assembly of the present invention;

[0060] Figure 6 It is a schematic diagram of the structure of the support plate and the battery lifting assembly connected with the explosion of the present invention;

[0061] Figure 7 It is a schematic structural diagram of the cross-section of the equipment frame of the present invention connected with the laser cleaning component;

[0062] Figure 8 It is a schematic diagram of the structure of the laser cleaning assembly of the present invention;

[0063] Fig. 9 The present invention Figure 8 Schematic diagram of the structure of the enlarged area A in the middle;

[0064] Fig.10 It is a schematic structural diagram of the connection between the laser welding assembly and the telescopic correction assembly of the present invention;

[0065] Fig.11 It is a structural schematic diagram of the connection between the second vertical slide rail and the telescopic correction assembly of the present invention;

[0066] Fig.12 It is a schematic diagram of the structure of the connection explosion of the clamp and the telescopic correction component of the present invention;

[0067] In the figure:

[0068] 10. Equipment box group;

[0069] 20. Battery conveying lifting assembly; 201. Bottom support; 202. Conveying slide rail; 203. Conveying electric slider; 204. Support plate; 205. Inner concave plate; 206. Induction support; 207. Module placement plate; 208. Battery lifting assembly; 2081. Inner cylinder; 2082. First motor; 2083. Reciprocating screw rod; 2084. Lifting shaft rod;

[0070] 30. Laser cleaning welding mechanism; 40. Control panel; 400. Key module; 50. Equipment rack; 500. Movable door panel; 5001. Camera terminal;

[0071] 60. Laser cleaning assembly; 600. Laser cleaning module; 601. First longitudinal slider; 602. First longitudinal electric slider; 603. Transverse beam; 604. First vertical slide rail; 605. First vertical electric slider; 606. Mounting component; 607. Power module;

[0072] 70, laser welding assembly; 700, laser welding module; 701, second longitudinal slide rail; 702, second longitudinal electric slider; 703, mounting block; 704, transverse slide rail; 705, transverse electric slider; 706, second vertical slide rail; 707, second vertical electric slider; 708, fixture;

[0073] 80. Telescopic correction assembly; 801. External frame; 802. Vertical groove; 803. Extension rod; 804. Telescopic cylinder; 805. Down-pressing piece; 8051. Down-pressing ball; 806. Ring body. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0075] See also Figure 1-Figure 12A welding processing device for battery module processing includes an equipment box group 10, a battery conveying and lifting assembly 20, a laser cleaning and welding mechanism 30 and a control panel 40. The battery conveying and lifting assembly 20 is arranged on the top of the equipment box group 10. The battery conveying and lifting assembly 20 conveys the battery module to the bottom of the laser cleaning and welding mechanism 30, and the laser cleaning and welding operation is performed by the laser cleaning and welding mechanism 30. The laser cleaning and welding mechanism 30 is installed on the outer side of the top of the equipment box group 10. The laser cleaning and welding mechanism 30 includes an equipment rack 50. The equipment rack 50 is installed on the outer side of the top of the equipment box group 10, and two groups are arranged. One side of the two groups of equipment racks 50 is connected by a bracket. There is a control panel 40; a laser cleaning component 60, which is arranged on the inner top of a group of equipment racks 50 and performs laser cleaning operations on multiple groups of poles of the battery module, and multiple groups of laser cleaning modules 600 are installed on the side of the laser cleaning component 60; a laser welding component 70, which is installed on the inner top of another group of equipment racks 50, and performs bus welding operations on the battery module through the laser welding module 700 installed on the side, and the laser welding component 70 is arranged on the side of the laser cleaning component 60, and a telescopic correction component 80 is arranged on the outer side of the laser welding component 70, and the telescopic correction component 80 squeezes the bus to the top of the battery module pole.

[0076] The above working principle: when welding the pole part and the busbar of the battery module, first place the pre-processed battery module on the top of the battery conveying and lifting assembly 20, and move it to the bottom of the laser cleaning assembly 60 and the laser welding assembly 70 through the conveying of the battery conveying and lifting assembly 20. At this time, when the battery module moves to the bottom of the laser cleaning assembly 60, the laser cleaning assembly 60 can be operated, and the efficiency of laser cleaning of multiple poles inside the battery module is improved through multiple groups of laser cleaning modules 600, and the effect of cleaning the poles is further improved through laser cleaning, so as to avoid dirt and oxides adhering to the surface of the poles from affecting the conductive performance during subsequent welding. At the same time, after the cleaning is completed, the battery module will be transferred to the outside of the equipment rack 50. At this time, the robot grabs the corresponding busbar and assembles it to the top of the pole, and transmits it to the bottom of the laser welding assembly 70 through the design of the battery conveying and lifting assembly 20. When the welding operation is performed on the bottom of the laser welding assembly 70, the telescopic correction assembly 80 can be operated to squeeze the busbar set at the bottom to ensure that the busbar and the pole will not deviate or shake during welding. At the same time, the telescopic correction assembly 80 can limit the emitted laser beam part and focus on welding the outer side of the connection part of the pole and the busbar, avoiding the generation of empty packing during welding, and further improving the conductivity of the pole and the busbar after laser welding.

[0077] In the present invention, a camera end 5001 is provided on one side of the inner wall of the equipment rack 50 for recording and photographing the process of laser cleaning and welding of the battery module.

[0078] Specific reference Figure 4 , Figure 5 and Figure 6 The battery conveying and lifting assembly 20 includes a bottom support 201, which is installed at the edge of the top of the equipment box group 10 by screws, and the top support is fixed with two groups of conveying slide rails 202, and the outer side of the conveying slide rail 202 is provided with a conveying electric slider 203, wherein four groups of conveying electric sliders 203 are provided, and the tops of the four groups of conveying electric sliders 203 are fixed with a support plate 204 by screws; an inner concave plate 205, the inner concave plate 205 is arranged at the center of the support plate 204, and a plurality of groups of induction pillars 206 are installed at the angle of the top of the inner concave plate 205, and the top of the induction pillar 206 is supported by a module placement plate 207, wherein the top support of the module placement plate 207 is fixed with a battery module, and the bottom of the module placement plate 207 is installed with a battery lifting assembly 208 extending to the bottom of the support plate 204.

[0079] In the welding processing device for battery module processing of the present invention, the bottom support 201 can support the fixed conveying slide 202. The battery module placed on the top of the module placement plate 207 can be adjusted by telescopic movement of the conveying electric slider 203 on the outside of the conveying slide 202 to perform subsequent laser cleaning and welding operations. The design of multiple sets of sensing supports 206 can sense and detect the lifting and lowering movement of the module placement plate 207 and the battery module on its top, ensuring that after laser cleaning and welding, the module placement plate 207 and the battery module can return to the initial position and finally move to the bottom of the conveying slide 202.

[0080] Specific reference Figure 6 The battery lifting assembly 208 includes an inner cylinder 2081, which is installed inside the support plate 204 and extends to the bottom of the support plate 204. A first motor 2082 is installed at the bottom of the inner cylinder 2081; a reciprocating screw 2083, which is connected to the output end of the first motor 2082 and is rotatably connected to the inner bottom of the inner cylinder 2081. The outer side of the reciprocating screw 2083 is connected to a lifting shaft 2084 through a ball bearing, wherein the lifting shaft 2084 is arranged to penetrate the inner cylinder 2081, and the top is installed at the center of the bottom of the module placement plate 207.

[0081] In the welding processing device for processing battery modules of the present invention, when the battery module is laser cleaned and welded, the control panel 40 can start the first motor 2082 to operate, driving the reciprocating screw 2083 connected to the output end of the first motor 2082 to rotate, and the reciprocating screw 2083 will drive the lifting shaft 2084 connected to its outer side through the ball bearing to move up and down when rotating, thereby adjusting the position height of the battery module supported by the module placement plate 207 at the top of the lifting shaft 2084.

[0082] Specific reference Figure 7 The control panel 40 and the key module 400 are electrically connected, and the key module 400 is installed on the side of the equipment rack 50, wherein a movable door panel 500 is rotatably connected to one side of the equipment rack 50 close to the key module 400, and the movable door panel 500 is arranged on the top of the key module 400.

[0083] In the welding processing device for battery module processing of the present invention, the key module 400 can be operated and programmed to realize automated battery module laser cleaning and welding operations. The movable door panel 500 can be opened in case of misoperation, which is convenient for timely replacement and repair.

[0084] Specific reference Figure 8 and Fig. 9 The laser cleaning assembly 60 includes a first longitudinal slide rail 601, which is installed on the inner top of a group of equipment racks 50, and is provided with two groups. The bottom of the two groups of first longitudinal slide rails 601 is provided with a first longitudinal electric slider 602; a transverse beam 603, which is installed on the bottom of the two groups of first longitudinal electric sliders 602 by screws, and the bottom of the transverse beam 603 is provided with multiple groups of first vertical slide rails 604 by screws, and the side of the first vertical slide rail 604 is provided with a first vertical electric slider 605; a mounting component 606, which is installed on the side of the first vertical electric slider 605 by screws, and multiple groups of laser cleaning modules 600 are installed and fixed inside, and the multiple groups of laser cleaning modules 600 arranged inside a group of mounting components 606 are electrically connected to a group of power modules 607 through wires, wherein the power module 607 is installed on the outside of the first vertical slide rail 604.

[0085] In the welding processing device for processing battery modules of the present invention, when laser cleaning is performed on the pole part of the battery module, the first vertical electric slider 605 can be lifted and moved on the side of the first vertical slide rail 604, driving the multiple groups of laser cleaning modules 600 installed on the side of the first vertical electric slider 605 through the mounting component 606 to be lifted and moved, ensuring that the laser cleaning module 600 can be close to the pole part and generate a laser beam to perform a laser cleaning operation. After laser cleaning of a row of poles is completed, the laser cleaning module 600 can adjust the position by moving the first longitudinal electric slider 602 at the bottom of the first longitudinal slide rail 601, so as to facilitate the movement of multiple groups of laser cleaning modules 600 to the top of another battery module pole to perform a laser cleaning operation on the pole.

[0086] Specific reference Fig.10 and Fig.11 The laser welding assembly 70 includes a second longitudinal slide rail 701, which is installed on the inner top of another set of equipment racks 50, and is provided with two sets. The bottom of the two sets of second longitudinal slide rails 701 is provided with a second longitudinal electric slider 702; a mounting block 703, which is installed on the bottom of the second longitudinal electric slider 702 by screws, and a transverse slide rail 704 is installed and fixed between the two sets of mounting blocks 703, and a transverse electric slider 705 is provided at the bottom of the transverse slide rail 704; a second vertical slide rail 706, which is installed on the bottom of the transverse electric slider 705, and a second vertical electric slider 707 is provided on the side, and a clamp 708 is installed on the side of the second vertical electric slider 707 by screws, and the laser welding module 700 is installed inside the clamp 708.

[0087] In this embodiment, the laser welding module 700 is electrically connected to another group of power modules 607 installed on the outside of the second vertical slide rail 706, and telescopic correction components 80 are installed on the left and right sides of the clamp 708, wherein the telescopic correction component 80 extends to the bottom of the laser welding module 700, and can be driven to move synchronously by the lifting and lowering movement of the clamp 708, so as to facilitate the bus that the bottom of the telescopic correction component 80 contacts tightly against the top of the pole.

[0088] In the welding processing device for battery module processing of the present invention, when laser welding is performed on the busbar and the pole, the laser welding module 700 can emit a laser beam to perform laser welding. The second vertical electric slider 707 can slide on the side of the second vertical slide rail 706, so that the laser welding module 700 can approach the busbar for laser welding; the horizontal electric slider 705 can move at the bottom of the horizontal slide rail 704, so that it can move to another row of poles for laser welding; the second longitudinal electric slider 702 can slide at the bottom of the second longitudinal slide rail 701, so that it can move to another row of poles for laser welding.

[0089] Specific reference Fig.11 and Fig.12 The telescopic correction component 80 includes an external frame 801, which is installed on the left and right sides of the clamp 708 by screws, and the interior is set to be hollow. Vertical grooves 802 are opened on the left and right sides of the external frame 801, and the interior of the vertical groove 802 is provided with an extension rod 803 slidably connected to the inside of the external frame 801, wherein the extension rod 803 extends to the outside of the external frame 801; a telescopic cylinder 804, which is installed on the side of the external frame 801, and the output end of the telescopic cylinder 804 is connected to the extension rod 803; a pressing piece 805, which is installed on the bottom of the extension rod 803 by screws and is installed between the two groups of extension rods 803, and a ring body 806 is set at the center of the pressing piece 805, and the center of the ring body 806 is set to be hollow and is in the same vertical plane as the laser beam emitting part of the laser welding module 700.

[0090] In this embodiment, the pressing member 805 is located at the bottom of the second vertical slide rail 706, and multiple groups of pressing balls 8051 are installed inside, wherein the busbar is fixed to the bottom of the multiple groups of pressing balls 8051, and there is a gap between the annular body 806 and the busbar. The busbar can be squeezed by the design of the pressing balls 8051 to ensure that the busbar and the pole will not be offset or misaligned during laser welding. The gap between the annular body 806 and the busbar facilitates heat dissipation during laser beam welding.

[0091] In the welding processing device for processing battery modules of the present invention, when laser welding is performed on the pole and the bus, the telescopic cylinder 804 can be operated to drive the extension rod 803 connected to its output end to telescopically move, so that the pressing member 805 installed at the bottom of the extension rod 803 can approach the bus and squeeze the bus. The middle ring body 806 of the pressing member 805 is located on the outside of the pole, ensuring that the laser beam welding area is more concentrated, reducing the occurrence of empty packs at the connection between the bus and the pole during welding, and improving the conductivity of the battery module after welding.

[0092] See also Figure 1-Figure 12 , an operating method of a welding processing device for battery module processing, comprising the following steps:

[0093] S1. First, the assembled battery module is placed on the top of the battery conveying and lifting assembly 20, and the battery module is sequentially transferred to the bottom of the laser cleaning assembly 60 and the laser welding assembly 70 through the battery conveying and lifting assembly 20, and the laser cleaning of the internal poles of the battery module and the welding of the poles and busbars after cleaning are respectively performed;

[0094] S2. When cleaning the poles of the battery module, multiple groups of laser cleaning modules 600 are used to perform laser cleaning on a row of multiple poles in a manner of operating simultaneously, which can improve the cleaning effect of the poles while ensuring the cleaning efficiency of the poles, and prevent dirt, oxides, etc. from adhering to the poles of the battery module;

[0095] S3. After the battery module pole part is cleaned, a corresponding number of busbars are placed and assembled on the outside of the pole by means of mechanical gripper grabbing and transportation, so as to facilitate the subsequent welding operation of the two by laser welding assembly 70;

[0096] S4. When welding the battery module pole and busbar, the telescopic correction component 80 operates to press down the busbar to ensure that the busbar does not deviate or shake during the welding process, thereby improving the welding accuracy. At the same time, the hollow part inside the telescopic correction component 80 facilitates the penetration of the laser beam emitted by the laser welding module 700, limits the range of laser welding and improves the effect of laser welding, thereby achieving a better effect of welding the battery module pole and busbar.

[0097] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding processing device for battery module processing, comprising an equipment box group (10), a battery conveying and lifting assembly (20), a laser cleaning and welding mechanism (30) and a control panel (40), characterized in that: A battery conveying and lifting assembly (20) is provided on the top of the equipment box group (10), and the battery conveying and lifting assembly (20) conveys the battery module to the bottom of the laser cleaning and welding mechanism (30), and performs laser cleaning and welding operations through the laser cleaning and welding mechanism (30). The laser cleaning and welding mechanism (30) is installed on the outside of the top of the equipment box group (10). The laser cleaning welding mechanism (30) comprises: Equipment racks (50), the equipment racks (50) being installed on the outside of the top of the equipment box group (10), and two groups are provided, and one side of the two groups of equipment racks (50) is connected to a control panel (40) via a bracket; A laser cleaning component (60), the laser cleaning component (60) being arranged at the inner top of a group of the equipment racks (50) and performing a laser cleaning operation on multiple groups of poles of a battery module, and multiple groups of laser cleaning modules (600) being installed on the side of the laser cleaning component (60); A laser welding assembly (70), the laser welding assembly (70) being mounted on the inner top of another set of the equipment racks (50), and performing busbar welding operations on the battery module through a laser welding module (700) mounted on the side, the laser welding assembly (70) being arranged on the side of the laser cleaning assembly (60), a telescopic correction assembly (80) being arranged on the outside of the laser welding assembly (70), the telescopic correction assembly (80) squeezing the busbar to the top of the battery module pole, The laser welding assembly (70) comprises a second vertical slide rail (706) and a clamp (708); The telescopic correction component (80) comprises: An external frame (801), the external frame (801) is mounted on the left and right sides of the clamp (708) by means of screws, and the interior is arranged to be hollow, the left and right sides of the external frame (801) are provided with vertical grooves (802), and the interior of the vertical grooves (802) is provided with extension rods (803) slidably connected to the interior of the external frame (801), Wherein, the extension rod (803) extends to the outside of the external frame (801); A telescopic cylinder (804), the telescopic cylinder (804) being mounted on a side of the external frame (801), the output end of the telescopic cylinder (804) being connected to an extension rod (803); A pressing piece (805), the pressing piece (805) being mounted on the bottom of the extension rod (803) by means of screws and being mounted between two groups of the extension rods (803); a ring body (806) being arranged at the center of the pressing piece (805); the center of the ring body (806) being arranged to be hollow and being located in the same vertical plane as the laser beam emitting portion of the laser welding module (700); The pressing member (805) is located at the bottom of the second vertical slide rail (706), and has multiple groups of pressing balls (8051) installed therein. A bus is fixedly pressed down at the bottom of the plurality of groups of downward pressing balls (8051), and a gap is left between the annular body (806) and the bus.

2. A welding processing device for battery module processing according to claim 1, characterized in that: The battery transport and lifting assembly (20) comprises: A bottom support (201), wherein the bottom support (201) is mounted on the edge of the top of the equipment box group (10) by means of screws, and two sets of conveying slide rails (202) are fixed to the top support, and a conveying electric slide rail (203) is arranged on the outer side of the conveying slide rail (202). There are four groups of the conveying electric sliders (203), and the tops of the four groups of the conveying electric sliders (203) are mounted with support plates (204) via screws; An inner concave plate (205), the inner concave plate (205) being arranged at the center of the support plate (204), a plurality of sets of sensing pillars (206) being installed at the angles at the top of the inner concave plate (205), the tops of the sensing pillars (206) supporting a module placement plate (207), The top support of the module placement plate (207) is fixed with a battery module, and the bottom of the module placement plate (207) is installed with a battery lifting assembly (208) extending to the bottom of the support plate (204).

3. A welding processing device for battery module processing according to claim 2, characterized in that: The battery lifting assembly (208) comprises: An inner column (2081), the inner column (2081) being mounted inside the support plate (204) and extending to the bottom of the support plate (204), and a first motor (2082) being mounted at the bottom of the inner column (2081); a reciprocating screw rod (2083), the reciprocating screw rod (2083) being connected to the output end of the first motor (2082) and being rotatably connected to the inner bottom of the inner cylinder (2081); the outer side of the reciprocating screw rod (2083) being connected to a lifting shaft rod (2084) via a ball bearing, The lifting shaft (2084) is arranged to pass through the inner column (2081), and the top is installed at the center of the bottom of the module placement plate (207).

4. A welding processing device for battery module processing according to claim 1, characterized in that: The control panel (40) is electrically connected to the key module (400), and the key module (400) is installed on a side of the equipment rack (50). Wherein, a movable door plate (500) is rotatably connected to a side of the equipment rack (50) close to the key module (400), and the movable door plate (500) is arranged on the top of the key module (400).

5. A welding processing device for battery module processing according to claim 1, characterized in that: The laser cleaning component (60) comprises: A first longitudinal slide rail (601), the first longitudinal slide rail (601) being installed on the inner top of a group of the equipment racks (50), and two groups are provided, and a first longitudinal electric slider (602) is provided at the bottom of the two groups of the first longitudinal slide rails (601); A transverse beam (603), the transverse beam (603) being mounted on the bottom of the two groups of the first longitudinal electric sliders (602) by means of screws, a plurality of groups of first vertical slide rails (604) being mounted on the bottom of the transverse beam (603) by means of screws, and a first vertical electric slider (605) being arranged on the side of the first vertical slide rail (604); A mounting component (606), wherein the mounting component (606) is mounted on a side surface of the first vertical electric slider (605) by means of screws, and a plurality of groups of the laser cleaning modules (600) are mounted and fixed inside the mounting component (606), and a plurality of groups of the laser cleaning modules (600) arranged inside a group of the mounting components (606) are electrically connected to a group of power modules (607) by means of wires, Wherein, the power module (607) is installed on the outside of the first vertical slide rail (604).

6. A welding device for battery module processing according to claim 5, characterized in that: The laser welding assembly (70) further comprises: A second longitudinal slide rail (701), the second longitudinal slide rail (701) being installed on the inner top of another set of the equipment racks (50), and two sets of the second longitudinal slide rails (701) are provided, and a second longitudinal electric slider (702) is provided at the bottom of the two sets of the second longitudinal slide rails (701); A mounting block (703) is mounted on the bottom of the second longitudinal electric slider (702) by means of screws, and a transverse slide rail (704) is fixedly mounted between the two groups of the mounting blocks (703), and a transverse electric slider (705) is arranged at the bottom of the transverse slide rail (704). The second vertical slide rail (706) is installed at the bottom of the horizontal electric slider (705), and a second vertical electric slider (707) is arranged on the side, a clamp (708) is installed on the side of the second vertical electric slider (707) by screws, and a laser welding module (700) is installed inside the clamp (708).

7. A welding device for battery module processing according to claim 6, characterized in that: The laser welding module (700) is electrically connected to another group of power modules (607) installed outside the second vertical slide rail (706), and telescopic correction components (80) are installed on the left and right sides of the clamp (708). Wherein, the telescopic correction component (80) extends to below the laser welding module (700).

8. An operating method of a welding device for processing a battery module, for a welding device for processing a battery module according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, firstly placing the assembled battery module on the top of the battery conveying and lifting assembly (20), and sequentially transferring the battery module to the bottom of the laser cleaning assembly (60) and the laser welding assembly (70) through the battery conveying and lifting assembly (20), and laser cleaning the internal poles of the battery module and welding the poles and busbars after cleaning respectively; S2. When cleaning the poles of the battery module, multiple groups of laser cleaning modules (600) are used to simultaneously operate to perform laser cleaning on a row of multiple poles, thereby ensuring the efficiency of pole cleaning and improving the effect of pole cleaning, thereby preventing dirt and oxides from adhering to the poles of the battery module; S3, after the battery module pole part is cleaned, a corresponding number of bus bars are placed and assembled on the outside of the pole by means of mechanical gripper transportation, so as to facilitate the subsequent welding operation of the two by means of laser welding assembly (70); S4. When welding the battery module pole and bus, the telescopic correction component (80) operates to press down the bus to ensure that the bus does not deviate or shake during the welding process, thereby improving the welding accuracy. At the same time, the hollow portion inside the telescopic correction component (80) facilitates the penetration of the laser beam emitted by the laser welding module (700), limits the range of laser welding and improves the effect of laser welding, thereby achieving a better battery module pole and bus welding operation.

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