Automatic laser welding equipment for aluminum alloy automobile battery shell

Abstract

The invention relates to the technical field of laser welding, in particular to automatic laser welding equipment for an aluminum alloy automobile battery shell. Comprising an equipment frame; a bottom plate is fixedly mounted on the equipment frame, and a conveying mechanism and a welding mechanism are arranged on the bottom plate; conveying, feeding and machining of the battery shells and conveying and discharging of the welded battery shells are achieved on the conveying mechanism, so that manual operation is reduced, the production and machining continuity of the battery shells is guaranteed, the two battery shells are welded at the same time, the welding and machining efficiency of the battery shells is improved, and the labor intensity of workers is reduced. The fixed battery shell is driven by the driving part to rotate, the welding assembly is driven by the guiding part to adjust the position left and right, continuous welding is guaranteed, the structure is simple, and the manufacturing and maintaining cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to automatic laser welding equipment for an aluminum alloy automobile battery shell. Background Art

[0002] The aluminum alloy automobile battery casing is an important component used to encapsulate and protect power batteries in new energy vehicles. It is mainly composed of a rectangular tube, a bottom cover and a cover plate. The bottom cover is usually embedded in the rectangular tube first and then fixed to the rectangular tube by laser welding. After the battery pack is placed in the rectangular tube, the cover plate is fixed to the other end of the rectangular tube in a detachable manner to seal it for subsequent disassembly and maintenance.

[0003] When welding the bottom cover to the rectangular tube, it is usually necessary to first fix the rectangular tube with a clamp on a rotating table, and then embed the bottom cover into the rectangular tube. The pressing plate then squeezes the bottom cover to make it fit tightly against the rotating table. After that, the rotating table drives the fixed rectangular tube and bottom cover to rotate, and the welding robot moves accordingly to perform welding processing on the battery casing.

[0004] However, the following problems currently exist in the welding process of the bottom cover of the battery casing: the existing welding method requires manual placement of the battery casing, which takes a long time to load and unload, and can only weld one battery casing at a time. Therefore, during the production process, the battery casing needs to be frequently disassembled and assembled, which affects the overall efficiency of the battery casing production and processing. Secondly, the manufacturing and maintenance costs of welding processing using welding robots are high. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides an automatic laser welding device for an aluminum alloy automobile battery casing to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: The embodiment of the present application provides an automatic laser welding device for aluminum alloy automobile battery casing, including an equipment frame; a base plate is fixedly installed on the equipment frame, and a conveying mechanism and a welding mechanism are arranged on the base plate.

[0007] The conveying mechanism includes a support assembly, and two groups of left-right symmetrical support assemblies are arranged on the upper end of the base plate. Each group of support assemblies is composed of two left-right symmetrical support plates. A plurality of rollers are installed between the two support plates in the same group so as to rotate evenly from front to back. Two adjacent rollers are connected by a No. 1 pulley mechanism. A connecting rod is fixedly connected between the two rollers that are opposite to each other in the two groups of support assemblies.

[0008] The welding mechanism includes an inverted shaped plate, an inverted shaped plate is fixedly installed on the upper end of the base plate and located between the two groups of support components, a telescopic cylinder is fixedly installed on the upper end of the inverted shaped plate, the telescopic section of the telescopic cylinder slides through the inverted shaped plate and then fixedly installed with a fixed plate, a slider corresponding to the support components is slidably installed on the lower end of the fixed plate, and a welding component is fixedly installed on the lower end of the slider.

[0009] The bottom plate is provided with fixing parts for fixing the rectangular tube at positions corresponding to the supporting components one by one, the fixing plate is provided with a pressing part for pressing down the battery housing to drive the fixing part to fix the rectangular tube, the pressing part is provided with a guide part for driving the welding assembly to move left and right to maintain the welding processing of the weld, and the bottom plate and the fixing plate are jointly provided with a driving part for driving the fixing part and the pressing part to move up and down and rotate.

[0010] As a preferred embodiment, the fixed part includes a support plate, a support plate is arranged between two adjacent rollers, two left-right symmetrical material guide plates are arranged between the two support plates and above the rollers, two pillars are arranged at the lower ends of the material guide plates and at positions corresponding to the support plates, the lower ends of the pillars are fixedly connected to the corresponding upper ends of the support plates, and two left-right symmetrical No. 1 spline sleeves are rotatably installed on the upper end of the base plate, both ends of the No. 1 spline sleeve pass through the base plate, a No. 1 spline shaft is coaxially slidably installed on the No. 1 spline sleeve, the upper end of the No. 1 spline shaft passes through the No. 1 spline sleeve and is fixedly connected to the lower end of the support plate located in the middle, the left and right ends of the support plate are provided with external positioning parts for squeezing and fixing the outer wall of the rectangular tube, and the rearmost support plate and the frontmost support plate are provided with internal positioning parts for contacting and fixing the inner wall of the rectangular tube.

[0011] As a preferred solution, the pressing part includes a shaft rod, and shaft rods are rotatably mounted at positions on the fixing plate that correspond to and are coaxial with the No. 1 spline shaft, and a pressure plate is fixedly mounted on the lower end of the shaft rod after passing through the fixing plate.

[0012] As a preferred embodiment, the driving part includes a No. 2 spline shaft, and two No. 2 spline shafts are rotatably installed on the base plate, which are symmetrical and located between the two groups of supporting components. A No. 2 spline sleeve is rotatably installed at a position corresponding to the No. 2 spline shaft on the fixed plate. The upper end of the No. 2 spline shaft slides through the corresponding No. 2 spline sleeve and then rotates through the inverted plate. The No. 2 spline sleeve and the corresponding shaft rod, the No. 2 spline shaft and the corresponding No. 1 spline sleeve, and the two No. 2 spline sleeves are all connected through a No. 2 pulley mechanism. The fixed plate and the inverted plate are jointly provided with a linkage part for driving the fixed plate and the No. 1 spline shaft to move relative to each other, and the inverted plate is provided with an actuator component for driving the No. 2 spline shaft to rotate.

[0013] As a preferred embodiment, the guide part includes a rectangular plate, the upper end of the shaft rod passes through the fixed plate and is fixedly installed with the rectangular plate, the lower end of the rectangular plate is provided with a guide groove identical to the weld trajectory, the fixed plate is provided with a waist groove corresponding to the slider one by one, the upper end of the slider is rotatably installed with a guide column, and the upper end of the guide column movably passes through the corresponding waist groove to the corresponding guide groove.

[0014] As a preferred embodiment, the linkage member includes a spur gear, and a spur gear is rotatably installed between the two vertical sections of the inverted shaped plate. The opposite surfaces of the two vertical sections of the inverted shaped plate are slidably installed with racks meshing with the spur gears, and the two racks are respectively located on the left and right sides of the spur gear. The upper end of the rack on the left is fixedly connected to the lower end of the fixed plate, and the lower end of the rack on the right slides through the bottom plate and is fixedly installed with a connecting plate, and the lower end of the No. 1 spline shaft rotates through the connecting plate.

[0015] As a preferred solution, the external positioning member includes a notch, and the left and right ends of the support plate are both provided with a notch, and an extrusion plate is rotatably installed in the notch through a torsion spring rod, and the extrusion plate has a V-shaped structure.

[0016] As a preferred embodiment, the internal positioning member includes a groove, and two left-right symmetrical grooves are provided at the upper ends of the frontmost and rearmost support plates. A connecting rod is rotatably installed in the groove through an axle column, and a pressure roller that contacts the inner wall of the rectangular tube is rotatably installed on the upper end of the connecting rod away from the axle column. A turntable located above the connecting rod is fixedly installed on the axle column, and a push-pull member is provided in the groove for cooperating with the corresponding extrusion plate to drive the turntable to rotate.

[0017] As a preferred embodiment, the push-pull member includes a push-pull plate, and the push-pull plate is slidably installed in the groove left and right. A U-shaped groove is opened on the turntable, and a roller that slides through the U-shaped groove is rotatably installed on the upper end of the push-pull plate. A compression spring is fixedly installed between the end of the push-pull plate away from the corresponding extrusion plate and the inner wall of the groove, and a ball that contacts the extrusion plate is rollingly installed on the end of the push-pull plate away from the compression spring.

[0018] As a preferred solution, the actuator assembly includes a stepper motor, and the upper end of the inverted shaped plate is fixedly mounted with a stepper motor whose output shaft is fixedly connected to one of the second spline shafts.

[0019] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The conveying mechanism of the present invention realizes the conveying and feeding processing of the battery shell and the conveying and discharging of the battery shell after welding, so as to reduce manual operation and ensure the continuity of the production and processing of the battery shell, and welds two battery shells at the same time, thereby improving the efficiency of the welding processing of the battery shell. The fixed battery shell is driven to rotate by the driving part, and the welding assembly is driven to adjust its position left and right by the guide part to ensure the continuous welding process. The structure is simple and the manufacturing and maintenance costs are reduced.

[0020] 2. The conveying mechanism provided in the present invention is connected to the external feeding mechanism through an external sprocket mechanism, so that the battery casing is conveyed to the corresponding positions of the two support plates in the same group, and then separated from the roller shaft through the fixing part and fixedly rotated for welding processing. After welding is completed, it contacts the roller shaft again through the fixing part, and the welded battery casing is conveyed to the external feeding mechanism on the rear side through the rotation of the roller shaft for subsequent processing, while the outer feeding mechanism conveys the battery casing to be processed to the welding equipment for further welding processing, thereby reducing manual operation, ensuring the continuity of battery casing production and processing, and further improving the efficiency of battery casing processing.

[0021] 3. The fixing part and the pressing part provided in the present invention limit the up and down movement of the battery casing by squeezing the support plate and the pressing plate, and limit the movement of the rectangular tube in four directions of left, right, front and back by the external positioning part and the internal positioning part, thereby ensuring the stability during the welding process. The driving part drives the fixed battery casing to rotate, and the guiding part drives the welding assembly to move left and right to adjust the position, ensuring that the welding assembly is always opposite to the weld, thereby ensuring the quality of the battery casing welding, and the mechanical structure is simple and easy to repair and maintain, reducing downtime and maintenance costs.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the battery shell during welding processing of the present invention.

[0025] Figure 2 It is a schematic structural diagram of the linkage member of the present invention.

[0026] Figure 3 for Figure 2 A magnified view of the structure in Figure 2.

[0027] Figure 4 This is a diagram showing the changes before and after the fixing part of the present invention fixes the battery housing.

[0028] Figure 5 It is a structural schematic diagram of the fixing part of the present invention when fixing the battery casing.

[0029] Figure 6 It is a schematic structural diagram of the guide part of the present invention.

[0030] Figure numerals: 10, equipment frame; 11, bottom plate; 2, conveying mechanism; 20, support plate; 21, roller; 22, No. 1 pulley mechanism; 23, connecting rod; 3, welding mechanism; 30, inverted plate; 31, telescopic cylinder; 32, fixed plate; 33, slider; 34, welding assembly; 4, fixing part; 40, support plate; 41, guide plate; 42, support column; 43, No. 1 spline sleeve; 44, No. 1 spline shaft; 45, external positioning member; 450, extrusion plate; 46, internal positioning member Positioning member; 460, connecting rod; 461, pressure roller; 462, turntable; 5, push-pull member; 50, push-pull plate; 51, roller; 52, compression spring; 6, driving unit; 60, No. 2 spline shaft; 61, No. 2 spline sleeve; 62, No. 2 pulley mechanism; 63, stepping motor; 64, linkage member; 640, spur gear; 641, rack; 642, connecting plate; 7, pressing unit; 70, shaft; 71, pressure plate; 8, guiding unit; 80, rectangular plate; 81, guiding groove; 82, guide column. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] like Figure 1 As shown, an automatic laser welding device for aluminum alloy automobile battery shell includes an equipment frame 10; a bottom plate 11 is fixedly installed on the equipment frame 10, and a conveying mechanism 2 and a welding mechanism 3 are arranged on the bottom plate 11.

[0033] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the conveying mechanism 2 includes a support assembly, and two groups of left-right symmetrical support assemblies are arranged on the upper end of the base plate 11, each group of support assemblies is composed of two left-right symmetrical support plates 20, and a plurality of rollers 21 are installed between the two support plates 20 in the same group so as to rotate evenly from front to back, and two adjacent rollers 21 are connected by a No. 1 pulley mechanism 22, and a connecting rod 23 is fixedly connected between the two rollers 21 that are opposite to each other in the two groups of support assemblies.

[0034] like Figure 1 , Figure 2 and Figure 6As shown, the welding mechanism 3 includes an inverted shaped plate 30, and the inverted shaped plate 30 is fixedly installed at the upper end of the base plate 11 and located between the two groups of support components. A telescopic cylinder 31 is fixedly installed at the upper end of the inverted shaped plate 30, and the telescopic section of the telescopic cylinder 31 slides through the inverted shaped plate 30 and then fixedly installed with a fixed plate 32, and a slider 33 corresponding to the support component is slidably installed at the lower end of the fixed plate 32, and a welding component 34 is fixedly installed at the lower end of the slider 33. The welding component 34 adopts the existing laser welding technology, and its specific structure and working principle are not described in detail here.

[0035] like Figure 1 and Figure 2 As shown, the positions on the bottom plate 11 corresponding to the supporting assemblies are all provided with fixing parts 4 for fixing the rectangular tube, the fixing plate 32 is provided with a pressing part 7 for pressing down the battery housing to drive the fixing part 4 to fix the rectangular tube, the pressing part 7 is provided with a guide part 8 for driving the welding assembly 34 to move left and right to maintain the welding processing of the weld, and the bottom plate 11 and the fixing plate 32 are jointly provided with a driving part 6 for driving the fixing part 4 and the pressing part 7 to move up and down and rotate.

[0036] During specific operation, feeding mechanisms are provided at the positions corresponding to the support components on the front and rear sides of the equipment frame 10, and one of the roller shafts 21 is connected to the feeding mechanism through a sprocket mechanism. Then, the two feeding mechanisms located on the front side of the equipment frame 10 move the rectangular tube with the bottom cover installed to the roller shaft 21 on the corresponding support component. At the same time, the feeding mechanism drives the corresponding roller shaft 21 to rotate through the sprocket mechanism, and the rollers of the same group rotate synchronously through the No. 1 pulley mechanism 22, and the other group of rollers rotate synchronously through the connecting rod 23. The rotation of the roller shaft 21 moves the rectangular tube with the bottom cover to the corresponding position of the two support plates 20 of the same group.

[0037] Then the driving part 6 drives the pressing part 7 and the fixing part 4 to move toward the battery shell to fix the battery shell, and then the driving part 6 drives the two fixed battery shells to rotate synchronously again, and the welding assembly 34 moves left and right to adjust its position under the guidance of the guide part 8 to ensure that the welding assembly 34 is always opposite to the weld.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the fixing portion 4 includes a support plate 40, and a support plate 40 is arranged between two adjacent roller shafts 21. Two left-right symmetrical guide plates 41 are arranged between the two support plates 20 and above the roller shafts 21. Two pillars 42 are arranged at the lower ends of the guide plates 41 and at positions corresponding to the support plates 40 one by one. The lower ends of the pillars 42 are fixedly connected to the corresponding upper ends of the support plates 40. Two left-right symmetrical No. 1 spline sleeves 43 are rotatably installed on the upper end of the base plate 11. Both ends of the No. 1 spline sleeve 43 pass through the base plate 11. A No. 1 spline shaft 44 is coaxially slidably installed on the No. 1 spline sleeve 43. The upper end of the No. 1 spline shaft 44 passes through the No. 1 spline sleeve 43 and is fixedly connected to the lower end of the support plate 40 located in the middle. The left and right ends of the support plate 40 are provided with external positioning members 45 for squeezing and fixing the outer wall of the rectangular tube. The rearmost support plate 40 and the frontmost support plate 40 are provided with internal positioning members 46 for contacting and fixing the inner wall of the rectangular tube.

[0039] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the outer positioning member 45 includes a notch, and the left and right ends of the support plate 40 are both provided with a notch, and an extrusion plate 450 is rotatably installed in the notch through a torsion spring rod, and the extrusion plate 450 is a V-shaped structure.

[0040] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the inner positioning member 46 includes a groove, and two left-right symmetrical grooves are opened at the upper ends of the frontmost and rearmost support plates 40, in which a connecting rod 460 is rotatably installed through an axle column, and a pressure roller 461 that contacts the inner wall of the rectangular tube is rotatably installed at the upper end of the connecting rod 460 away from the axle column, and a turntable 462 located above the connecting rod 460 is fixedly installed on the axle column, and a push-pull member 5 is provided in the groove for cooperating with the corresponding extrusion plate 450 to drive the turntable 462 to rotate.

[0041] like Figure 2 , Figure 3 and Figure 5 As shown, the push-pull member 5 includes a push-pull plate 50, and the push-pull plate 50 is slidably installed in the groove left and right. A U-shaped groove is opened on the turntable 462, and a roller 51 that slides through the U-shaped groove is rotatably installed on the upper end of the push-pull plate 50. A compression spring 52 is fixedly installed between the end of the push-pull plate 50 away from the corresponding extrusion plate 450 and the inner wall of the groove, and a ball that contacts the extrusion plate 450 is rollingly installed on the end of the push-pull plate 50 away from the compression spring 52.

[0042] like Figure 1 and Figure 2As shown, the pressing part 7 includes a shaft rod 70, and the shaft rod 70 is rotatably mounted at positions on the fixing plate 32 that correspond to and are coaxial with the No. 1 spline shaft 44, and a pressing plate 71 is fixedly mounted on the lower end of the shaft rod 70 after passing through the fixing plate 32.

[0043] During specific operation, the telescopic cylinder 31 pushes the fixed plate 32 to move downward, and the fixed plate 32 drives the No. 1 spline shaft 44 to move upward through the driving part 6, and the No. 1 spline shaft 44 pushes the support plate 40 whose upper end surface is lower than the upper section of the roller shaft 21 in the initial state to move upward, and the upward-moving support plate 40 drives the remaining support plates 40 of the same group to move upward synchronously to be higher than the roller shaft 21 through the support pillar 42 and the guide plate 41, and pushes the rectangular tube to move upward and away from the roller shaft 21 through the squeezing plate 450, and at the same time, the fixed plate 32 drives the pressing plate 71 through the shaft 70 to contact the bottom cover on the rectangular tube, so as to push the rectangular tube to fit with the support plate 40, and the rectangular tube fits with the support plate 40 During the process, the corresponding end of the extrusion plate 450 will be pushed to rotate downward, and the other end of the extrusion plate 450 will contact the outer wall of the rectangular tube to limit the left and right movement of the rectangular tube. The rotation of the extrusion plate 450 will also push the push-pull plate 50 to move, and the push-pull plate 50 will drive the turntable 462 to rotate through the roller 51. The turntable 462 drives the pressure roller 461 to contact the front and rear inner walls of the rectangular tube through the shaft column and the connecting rod 460 to limit the front and rear movement of the rectangular tube. The up and down movement of the battery shell is limited by the extrusion of the support plate 40 and the pressure plate 71, and then the driving unit 6 drives the fixed battery shell to rotate, and at the same time the welding mechanism 3 performs welding processing on the rotating battery shell.

[0044] After welding is completed, the telescopic cylinder 31 pulls the fixed plate 32 to move upward to drive the pressing part 7 and the welding assembly 34 away from the battery casing, and the extrusion plate 450 rotates under the action of the torsion spring rod to release the resistance to the outer wall of the rectangular tube. The rotation and reset of the extrusion plate 450 will also release the resistance to the push-pull plate 50. The push-pull plate 50 is reset under the action of the compression spring 52, and drives the pressure roller 461 to rotate and reset in the groove. Then the fixed plate 32 drives the support plate 40 to move downward through the driving part 6, so that the rectangular tube is again fitted with the roller shaft 21, and then the support plate 40 continues to move downward to the upper horizontal section below the roller shaft 21 to achieve reset.

[0045] like Figure 1 and Figure 2As shown, the driving part 6 includes a second spline shaft 60, two second spline shafts 60 symmetrically located between two sets of supporting components are rotatably mounted on the bottom plate 11, and second spline sleeves 61 are rotatably mounted at positions corresponding to the second spline shafts 60 on the fixed plate 32. The upper end of the second spline shaft 60 slides through the corresponding second spline sleeve 61 and then rotates through the inverted plate 30. The second spline sleeve 61 and the corresponding shaft rod 70, the second spline shaft 60 and the corresponding first spline sleeve 43 are connected. The two No. 1 spline sleeves 61 are connected to each other through a No. 2 pulley mechanism 62. The fixed plate 32 and the inverted plate 30 are jointly provided with a linkage member 64 for driving the fixed plate 32 and the No. 1 spline shaft 44 to move relative to each other. The inverted plate 30 is provided with an actuator component for driving the No. 2 spline shaft 60 to rotate, and the actuator component includes a stepper motor 63. The upper end of the inverted plate 30 is fixedly mounted with a stepper motor 63 whose output shaft is fixedly connected to one of the No. 2 spline shafts 60.

[0046] like Figure 2 and Figure 6 As shown, the linkage member 64 includes a spur gear 640, and a spur gear 640 is rotatably installed between the two vertical sections of the inverted shaped plate 30. Racks 641 meshing with the spur gear 640 are slidably installed on the opposite surfaces of the two vertical sections of the inverted shaped plate 30, and the two racks 641 are respectively located on the left and right sides of the spur gear 640. The upper end of the rack 641 on the left is fixedly connected to the lower end of the fixed plate 32, and the lower end of the rack 641 on the right slides through the bottom plate 11 and is fixedly installed with a connecting plate 642, and the lower end of the No. 1 spline shaft 44 rotates and penetrates the connecting plate 642.

[0047] like Figure 1 , Figure 2 and Figure 6 As shown, the guide portion 8 includes a rectangular plate 80, and the upper end of the shaft rod 70 passes through the fixed plate 32 and is fixedly installed with the rectangular plate 80. The lower end of the rectangular plate 80 is provided with a guide groove 81 which is the same as the weld trajectory. The fixed plate 32 is provided with a waist groove which corresponds to the slider 33 one by one. The upper end of the slider 33 is rotatably installed with a guide column 82, and the upper end of the guide column 82 is movable through the corresponding waist groove to the corresponding guide groove 81.

[0048] During specific operation, the telescopic cylinder 31 pushes the fixed plate 32 to move downward, and the fixed plate 32 drives the spur gear 640 to rotate through the corresponding rack 641, and the spur gear 640 drives another rack 641 to move upward, and the upward moving rack 641 pushes the No. 1 spline shaft 44 to move upward through the connecting plate 642, and fixes the battery casing through the cooperation of the fixing part 4 and the pressing part 7, and then the stepper motor 63 drives the corresponding No. 2 spline shaft 60 to rotate, and the No. 2 spline shaft 60 drives another No. 2 spline shaft 60 to rotate through the No. 2 pulley mechanism 62, and the two No. 2 spline shafts 60 drive the corresponding shaft rod 70 and the No. 1 spline shaft 44 to rotate synchronously through the corresponding No. 2 pulley mechanism 62, thereby driving the fixed battery casing to rotate.

[0049] The rotation of the shaft 70 also drives the rectangular plate 80 to rotate, and the rectangular plate 80 drives the welding assembly 34 to move left and right to adjust its position through the guide groove 81, the guide column 82 and the slider 33, so that the welding assembly 34 is always opposite to the weld to complete the welding process of the battery shell.

[0050] After welding is completed, the telescopic cylinder 31 pulls the fixed plate 32 to move upward, and the fixed plate 32 drives the support plate 40 to move downward through the fixing part 4, so that the fixing part 4 is lower than the upper horizontal section of the roller 21, and then the feeding mechanism continues to operate and drives the roller 21 to continue to rotate through the sprocket mechanism to move the welded battery shell to the feeding mechanism on the rear side of the equipment frame 10, while the feeding mechanism on the front side continues to move the battery shell to be processed to the roller 21 for welding, so as to reduce manual operation, ensure the continuity of processing, and improve the efficiency of battery shell welding.

[0051] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic laser welding device for aluminum alloy automobile battery housing, comprising a device frame (10); characterized in that: A bottom plate (11) is fixedly mounted on the equipment frame (10), and a conveying mechanism (2) and a welding mechanism (3) are arranged on the bottom plate (11); wherein: The conveying mechanism (2) comprises a support assembly, wherein two groups of left-right symmetrical support assemblies are arranged at the upper end of the bottom plate (11), each group of support assemblies is composed of two left-right symmetrical support plates (20), a plurality of rollers (21) are evenly rotated from front to back between the two support plates (20) in the same group, two adjacent rollers (21) are connected by a first pulley mechanism (22), and a connecting rod (23) is fixedly connected between two rollers (21) that are opposite to each other in the two groups of support assemblies; The welding mechanism (3) comprises an inverted shaped plate (30), the inverted shaped plate (30) is fixedly installed at the upper end of the bottom plate (11) and located between the two groups of support components, a telescopic cylinder (31) is fixedly installed at the upper end of the inverted shaped plate (30), a telescopic section of the telescopic cylinder (31) slides through the inverted shaped plate (30) and then a fixed plate (32) is fixedly installed, a slider (33) corresponding to the support components is slidably installed at the lower end of the fixed plate (32), and a welding component (34) is fixedly installed at the lower end of the slider (33); The bottom plate (11) is provided with fixing parts (4) for fixing the rectangular tube at positions corresponding to the supporting components, the fixing plate (32) is provided with a pressing part (7) for pressing down the battery housing to drive the fixing part (4), the pressing part (7) is provided with a guide part (8) for driving the welding component (34) to maintain the welding process of the weld, and the bottom plate (11) and the fixing plate (32) are jointly provided with a driving part (6) for driving the fixing part (4) and the pressing part (7) to move up and down and rotate.

2. The automatic laser welding equipment for aluminum alloy automobile battery shell according to claim 1 is characterized in that: The fixing part (4) comprises a supporting plate (40), each supporting plate (40) is arranged between two adjacent roller shafts (21), two left-right symmetrical material guide plates (41) are arranged between the two support plates (20) and above the roller shafts (21), two pillars (42) are arranged at the lower ends of the material guide plates (41) and at positions corresponding to the supporting plates (40), the lower ends of the pillars (42) are fixedly connected to the upper ends of the corresponding supporting plates (40), and two left-right symmetrical No. 1 spline sleeves (43) are rotatably installed at the upper end of the bottom plate (11). Both ends of the No. 1 spline sleeve (43) penetrate the bottom plate (11), and a No. 1 spline shaft (44) is coaxially slidably mounted on the No. 1 spline sleeve (43). The upper end of the No. 1 spline shaft (44) penetrates the No. 1 spline sleeve (43) and is fixedly connected to the lower end of the support plate (40) located in the middle. The left and right ends of the support plate (40) are both provided with external positioning members (45) for pressing and fixing the outer wall of the rectangular tube, and the rearmost support plate (40) and the frontmost support plate (40) are both provided with internal positioning members (46) for contacting and fixing the inner wall of the rectangular tube.

3. The automatic laser welding equipment for aluminum alloy automobile battery shell according to claim 2 is characterized in that: The pressing part (7) comprises a shaft (70), and the shaft (70) is rotatably mounted at positions on the fixing plate (32) that correspond to and are coaxial with the No. 1 spline shaft (44), and a pressing plate (71) is fixedly mounted after the lower end of the shaft (70) passes through the fixing plate (32).

4. The automatic laser welding equipment for aluminum alloy automobile battery shell according to claim 3 is characterized in that: The driving part (6) comprises a second spline shaft (60), two second spline shafts (60) are rotatably mounted on the bottom plate (11) and are symmetrical with each other and are located between the two groups of supporting components, and second spline sleeves (61) are rotatably mounted on the fixed plate (32) at positions corresponding to the second spline shafts (60), and the upper end of the second spline shaft (60) slides through the corresponding second spline sleeve (61) and then rotates through the inverted plate (30), and the second spline sleeve (61) and the corresponding The corresponding shafts (70), the No. 2 spline shaft (60) and the corresponding No. 1 spline sleeve (43), and the two No. 2 spline sleeves (61) are all connected by a No. 2 pulley mechanism (62). The fixed plate (32) and the inverted plate (30) are provided with a linkage member (64) for driving the fixed plate (32) and the No. 1 spline shaft (44) to move relative to each other. The inverted plate (30) is provided with an actuator assembly for driving the No. 2 spline shaft (60) to rotate.

5. The automatic laser welding equipment for aluminum alloy automobile battery shell according to claim 3 is characterized in that: The guide portion (8) comprises a rectangular plate (80), the upper end of the shaft rod (70) passes through the fixed plate (32) and is fixedly mounted with the rectangular plate (80), the lower end of the rectangular plate (80) is provided with a guide groove (81) identical to the welding seam track, the fixed plate (32) is provided with a waist groove corresponding to the slider (33) one by one, the upper end of the slider (33) is rotatably mounted with a guide column (82), and the upper end of the guide column (82) is movable through the corresponding waist groove to the corresponding guide groove (81).

6. The automatic laser welding equipment for aluminum alloy automobile battery housing according to claim 4 is characterized in that: The linkage member (64) comprises a spur gear (640), a spur gear (640) is rotatably installed between the two vertical sections of the inverted shaped plate (30), and racks (641) meshing with the spur gear (640) are slidably installed on the opposite surfaces of the two vertical sections of the inverted shaped plate (30) up and down, and the two racks (641) are respectively located on the left and right sides of the spur gear (640), the upper end of the rack (641) located on the left is fixedly connected to the lower end of the fixed plate (32), and the lower end of the rack (641) located on the right slides through the bottom plate (11) and is fixedly installed with a connecting plate (642), and the lower end of the No. 1 spline shaft (44) rotates through the connecting plate (642).

7. The automatic laser welding equipment for aluminum alloy automobile battery housing according to claim 2 is characterized in that: The outer positioning member (45) comprises a notch, and the left and right ends of the support plate (40) are both provided with a notch, and an extrusion plate (450) is rotatably installed in the notch through a torsion spring rod, and the extrusion plate (450) is in a V-shaped structure.

8. The automatic laser welding equipment for aluminum alloy automobile battery housing according to claim 7 is characterized in that: The inner positioning member (46) includes a groove, and two left-right symmetrical grooves are provided at the upper ends of the frontmost and rearmost support plates (40), in which a connecting rod (460) is rotatably installed via an axle column, and a pressure roller (461) that contacts the inner wall of the rectangular tube is rotatably installed at the upper end of the connecting rod (460) away from the axle column, and a turntable (462) located above the connecting rod (460) is fixedly installed on the axle column, and a push-pull member (5) is provided in the groove for cooperating with the corresponding extrusion plate (450) to drive the turntable (462) to rotate.

9. The automatic laser welding equipment for aluminum alloy automobile battery housing according to claim 8 is characterized in that: The push-pull member (5) includes a push-pull plate (50), and the push-pull plate (50) is slidably installed in the groove to the left and right. A U-shaped groove is opened on the turntable (462), and a roller (51) that slides through the U-shaped groove is rotatably installed on the upper end of the push-pull plate (50). A compression spring (52) is fixedly installed between the end of the push-pull plate (50) away from the corresponding extrusion plate (450) and the inner wall of the groove, and a ball that contacts the extrusion plate (450) is rollingly installed on the end of the push-pull plate (50) away from the compression spring (52).

10. The automatic laser welding equipment for aluminum alloy automobile battery shell according to claim 4 is characterized in that: The actuator assembly comprises a stepper motor (63), and the upper end of the inverted shaped plate (30) is fixedly mounted with a stepper motor (63) whose output shaft is fixedly connected to one of the second spline shafts (60).

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