Battery module welding device

Abstract

The utility model belongs to the technical field of battery module welding, and particularly relates to a battery module welding device which comprises a rotor seat. The middle part of the rotor seat is fixedly connected with a fixed plate; a lifting assembly is fixedly connected to the middle of the fixing plate. The side wall of the lifting assembly is slidably connected with a first fixing frame. The middle part of the first fixing frame is fixedly connected with a distance measuring displacement laser sensor; a paraxial locating camera is fixedly connected to the bottom of the first fixing frame; the side wall of the first fixing frame is fixedly connected with a welding galvanometer. The position change of the battery module can be accurately measured through the distance measurement displacement laser sensor, accurate image information can be provided through the paraxial positioning camera, high-precision positioning and measurement of the battery module in the welding process can be effectively improved, the accuracy and consistency of welding points of the battery module can be effectively improved, and the welding quality of the battery module is improved. Deviation and errors generated in the welding process are effectively reduced, and therefore the welding quality and efficiency of the battery module can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery module welding, in particular to a battery module welding device. Background Art

[0002] A battery module is an integral unit composed of multiple battery cells. A battery module usually consists of multiple battery cells, a battery management system, a battery protection circuit, and a connection area.

[0003] The main function of the battery module is to combine battery elevators, increase the total battery capacity and voltage output, and provide battery management and protection. The battery module can provide continuous, stable and high-quality energy for storing and releasing electricity in time to meet energy needs. Battery module welding is an important link in the battery production process, mainly connecting multiple battery cells, connecting plates, protection plates and other components into a complete battery module.

[0004] During the battery module welding process, there will be slight differences in the size and capacity of each battery cell, which can easily cause position deviations in the battery module during welding, resulting in reduced welding accuracy and quality.

[0005] To this end, the utility model provides a battery module welding device. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a battery module welding device described in the utility model includes a workbench; it is characterized in that: a linear motor shaft is installed on the top of the workbench; an electric lifting vehicle is installed in the middle of the workbench; a mover seat is installed in the middle of the linear motor shaft; a fixed plate is fixedly connected to the middle of the mover seat; a lifting assembly is fixedly connected to the middle of the fixed plate; a first fixed frame is slidably connected to the side wall of the lifting assembly; a ranging displacement laser sensor is fixedly connected to the middle of the first fixed frame; a paraxial positioning camera is fixedly connected to the bottom of the first fixed frame; a welding galvanometer is fixedly connected to the side wall of the first fixed frame; the position change of the battery module can be accurately measured by the ranging displacement laser sensor, and the paraxial positioning camera can provide accurate image information, which can effectively increase the high-precision positioning and measurement of the battery module during the welding process, effectively improve the accuracy and reliability of welding, effectively increase the accuracy and consistency of the welding points of the battery module, and effectively reduce the deviations and errors generated during the welding process, thereby improving the welding quality and efficiency of the battery module.

[0008] Preferably, a servo electric cylinder is fixedly connected to the middle of the fixed plate; the servo electric cylinder is fixedly connected near the top of the fixed plate; a slide rail is fixedly connected to the middle of the fixed plate; a second fixed frame is slidably connected to the middle of the slide rail; a pressure sensor is fixedly connected to the middle of the second fixed frame; a welding pressure head is fixedly connected to the side wall of the second fixed frame; the welding pressure head is fixedly connected near the bottom of the second fixed frame; the pressure sensor can effectively control the pressure of the welding pressure head on the battery module, effectively increase the stability of the position of the battery module during welding, effectively reduce the damage to the battery module caused by excessive pressure during battery module welding, effectively reduce the problem of extrusion or deformation of batteries or circuits inside the battery module, reduce the deviation caused by unstable fixation of the battery module due to too little pressure during battery module welding, and effectively improve the efficiency of battery module welding.

[0009] Preferably, two fixing blocks are fixedly connected in the middle of the second fixing frame; the two fixing blocks are threadedly connected; an exhaust pipe is installed in the middle of the two fixing blocks; through the exhaust pipe, a large amount of smoke and harmful gases generated in the process of welding the battery module can be effectively discharged, the smoke and harmful gases can be effectively reduced from being discharged into the working environment, the pollution of the working environment by smoke and harmful objects can be effectively reduced, the air quality of the working environment can be effectively increased, the smoke adhesion to equipment and tools can be effectively reduced, the damage and corrosion to the equipment caused by welding smoke can be effectively reduced, and the service life of the equipment can be effectively increased.

[0010] Preferably, the middle part of the welding pressure head is slidably connected with multiple groups of sliding rods; the spacing between the multiple groups of sliding rods is equal; the end of the sliding rod is fixed with a spring; the end of the spring is fixed to the top of the welding pressure head; the sliding rod can effectively reduce the impact of the welding pressure head on the battery module during the pressure application process, effectively buffer the welding pressure head when pressing the battery module, effectively reduce the problem of damage to the battery module caused by the impact on the surface when pressing the battery module, and effectively fix the uneven surface of the battery module, which can increase the contact surface of the battery module and effectively increase the fixing effect of the battery module.

[0011] Preferably, a slider is slidably connected to the middle of the exhaust pipe; the middle of the slider is hollow; multiple groups of elastic plates are fixed to the top of the slider; the multiple groups of elastic plates are equidistantly distributed; an elastic cloth is fixed between two elastic plates close to each other; two groups of positioning blocks are fixed to the middle of the exhaust pipe; each group of positioning blocks is oppositely arranged; the slider can effectively remove the smoke and dust impurities adsorbed on the inner wall of the exhaust pipe due to long-term use of the exhaust pipe, effectively reduce the long-term accumulation of smoke and dust impurities on the inner wall of the exhaust pipe, and can effectively reduce the problem of blockage of the exhaust pipe caused by the accumulation of smoke and dust impurities, effectively reduce the blockage of the inner wall of the exhaust pipe that makes it difficult to clean, and can effectively reduce the blockage of the exhaust pipe by smoke and dust impurities that causes the welding smoke extraction effect to decrease.

[0012] Preferably, a collecting groove is provided on the top of the slider; the collecting groove is provided in the middle of the slider; the scraped smoke and dust impurities can be effectively collected through the collecting groove, effectively reducing the scattering of smoke and dust impurities after the inner wall of the exhaust pipe is cleaned, and the smoke and dust impurities can be quickly extracted in the collecting groove, which can effectively reduce the smoke and dust impurities from floating and hiding in the corners of the elastic plate and the elastic cloth, and effectively reduce the problem of smoke and dust impurities being difficult to clean.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The battery module welding device described in the utility model can accurately measure the position change of the battery module through the ranging displacement laser sensor, and can provide accurate image information through the side-axis positioning camera, which can effectively increase the high-precision positioning and measurement of the battery module during the welding process, can effectively improve the accuracy and reliability of welding, and can effectively increase the accuracy and consistency of the battery module welding points.

[0015] 2. The battery module welding device described in the utility model can effectively control the pressure of the welding pressure head on the battery module through the pressure sensor, effectively increase the stability of the battery module position during the welding process, and effectively reduce the damage to the battery module caused by excessive pressure during the battery module welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of a battery module welding device in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the workbench in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the electric lifting vehicle in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the linear motor shaft in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the servo electric cylinder in the utility model;

[0022] Figure 6 It is a structural schematic diagram of the lifting component in the utility model;

[0023] Figure 7 It is a structural schematic diagram of the slide bar in the utility model;

[0024] Figure 8 It is a structural schematic diagram of the slider in the utility model;

[0025] In the figure: 1. mover seat; 10. fixing plate; 11. lifting assembly; 12. first fixing frame; 13. ranging displacement laser sensor; 14. side-axis positioning camera; 15. welding galvanometer; 2. servo electric cylinder; 21. slide rail; 22. second fixing frame; 23. pressure sensor; 24. welding pressure head; 3. fixing block; 31. exhaust pipe; 4. sliding rod; 41. spring; 5. sliding block; 51. elastic plate; 52. elastic cloth; 53. positioning block; 6. collecting trough; 7. workbench; 71. linear motor shaft; 72. electric lifting vehicle. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figures 1 to 6 As shown, a battery module welding device described in an embodiment of the utility model includes a workbench 7; it is characterized in that: a linear motor shaft 71 is installed on the top of the workbench 7; an electric lifting vehicle 72 is installed in the middle of the workbench 7; a mover seat 1 is installed in the middle of the linear motor shaft 71; a fixed plate 10 is fixedly connected to the middle of the mover seat 1; a lifting assembly 11 is fixedly connected to the middle of the fixed plate 10; a first fixed frame 12 is slidably connected to the side wall of the lifting assembly 11; a ranging displacement laser sensor 13 is fixedly connected to the middle of the first fixed frame 12; a paraxial positioning camera 14 is fixedly connected to the bottom of the first fixed frame 12; a welding galvanometer 15 is fixedly connected to the side wall of the first fixed frame 12; when working, the mover seat 1 is installed in the middle of the linear motor shaft 71, the battery module is placed on the electric lifting vehicle 72, and the electric lifting The vehicle 72 is pushed into the workbench 7, and the height of the electric lifting vehicle 72 is adjusted. The welding position points of the battery module are scanned by the side-axis positioning camera 14, and the precise position of the welding point is measured, and the welding galvanometer 15 is guided to perform welding. The lifting assembly 11 is moved by the ranging displacement laser sensor 13 to adjust the welding height of the welding galvanometer 15. The ranging displacement laser sensor 13 can accurately measure the position change of the battery module, and the side-axis positioning camera 14 can provide accurate image information, which can effectively increase the high-precision positioning and measurement of the battery module during the welding process, effectively improve the accuracy and reliability of welding, effectively increase the accuracy and consistency of the battery module welding points, and effectively reduce the deviations and errors generated during the welding process, thereby improving the welding quality and efficiency of the battery module.

[0028] like Figure 1 and Figure 5As shown, a servo electric cylinder 2 is fixedly connected to the middle of the fixed plate 10; the servo electric cylinder 2 is fixedly connected to a position close to the top of the fixed plate 10; a slide rail 21 is fixedly connected to the middle of the fixed plate 10; a second fixed frame 22 is slidably connected to the middle of the slide rail 21; a pressure sensor 23 is fixedly connected to the middle of the second fixed frame 22; a welding pressure head 24 is fixedly connected to the side wall of the second fixed frame 22; the welding pressure head 24 is fixedly connected to a position close to the bottom of the second fixed frame 22; when working, a suitable welding pressure head 24 is installed at the bottom of the second fixed frame 22. During the welding of the battery module, the output end of the servo electric cylinder 2 is pressed downward after the servo electric cylinder 2 is turned on, and the output end of the servo electric cylinder 2 is connected to the second fixed frame 22. The top of the battery module is in contact, so that the second fixing frame 22 slides in the middle of the slide rail 21, and the welding pressure head 24 is used to press the battery module through the second fixing frame 22. The pressing force is set and monitored by the pressure sensor 23. The pressure of the welding pressure head 24 on the battery module can be effectively controlled by the pressure sensor 23, which effectively increases the stability of the position of the battery module during welding, can effectively reduce the damage to the battery module caused by excessive pressure during the welding of the battery module, effectively reduce the problem of extrusion or deformation of the battery or circuit inside the battery module, reduce the deviation caused by unstable fixation of the battery module due to too little pressure during the welding of the battery module, and effectively improve the efficiency of battery module welding.

[0029] like Figure 1 and Figure 5 As shown, two fixing blocks 3 are fixedly connected to the middle of the second fixing frame 22; the two fixing blocks 3 are threadedly connected; an exhaust pipe 31 is installed in the middle of the two fixing blocks 3; when working, the fixing block 3 is placed in the middle of the two exhaust pipes 31, the two fixing blocks 3 are connected by bolts, the exhaust pipe 31 is fixed by the fixing block 3, one end of the exhaust pipe 31 is connected to the pipe of the smoke extraction and dust removal purifier, and the other end of the exhaust pipe 31 is set at the corresponding welding position. When the battery module is welded, the welding area is smoked by the smoke extraction and dust removal purifier, and a large amount of smoke and harmful gases generated in the process of welding the battery module can be effectively removed through the exhaust pipe 31, effectively reducing the exhaust of smoke and harmful gases into the working environment, effectively reducing the pollution of the working environment by smoke and harmful objects, effectively increasing the air quality of the working environment, effectively reducing the adhesion of smoke to equipment and tools, effectively reducing the damage and corrosion of equipment by welding smoke, and effectively increasing the service life of the equipment.

[0030] like Figure 7As shown, the middle part of the welding pressure head 24 is slidably connected with multiple groups of sliding bars 4; the spacing between the multiple groups of sliding bars 4 is equal; the end of the sliding bar 4 is fixedly connected to the spring 41; the end of the spring 41 is fixedly connected to the top of the welding pressure head 24; during operation, when the welding pressure head 24 is used to press the welding position of the battery module, the bottom end of the spring 41 first contacts the battery module, and in the process of pressing the welding pressure head 24 downward, the sliding bar 4 slides upward in the middle part of the welding pressure head 24, and the spring 41 generates elastic stretching when the sliding bar 4 slides upward. When the welding pressure head 24 finishes applying pressure to the battery module, the sliding bar 4 is reset by elastic contraction of the spring 41, and the sliding bar 4 can effectively reduce the impact generated by the welding pressure head 24 on the battery module during the pressure application process, effectively buffer the welding pressure head 24 when pressing the battery module, effectively reduce the problem of damage to the battery module caused by the impact on the surface when pressing the battery module, and effectively fix the uneven surface of the battery module, which can increase the contact surface of the battery module and effectively increase the fixing effect of the battery module.

[0031] like Figure 8 As shown, a slider 5 is slidably connected to the middle of the exhaust pipe 31; the middle of the slider 5 is hollow; multiple groups of elastic plates 51 are fixedly connected to the top of the slider 5; the multiple groups of elastic plates 51 are equidistantly distributed; an elastic cloth 52 is fixedly connected between two elastic plates 51 close to each other; two groups of positioning blocks 53 are fixedly connected to the middle of the exhaust pipe 31; each group of positioning blocks 53 is arranged oppositely; when the smoke and dust purifier is working, when the airflow passes through the middle of the slider 5 and blows to the multiple groups of elastic plates 51, the multiple groups of elastic plates 51 are elastically opened toward the side wall of the exhaust pipe 31 by the wind force of the airflow, and the elastic plates 51 are used to make The elastic cloth 52 is elastically stretched, and at the same time, the airflow lifts the slider 5 to slide to the top of the exhaust pipe 31, and the smoke adsorbed on the inner wall of the exhaust pipe 31 is scraped off by the top of the slider 5, and the slider 5 is limited by two sets of positioning blocks 53. The slider 5 can effectively remove the smoke impurities adsorbed on the inner wall of the exhaust pipe 31 due to long-term use of the exhaust pipe 31, and effectively reduce the long-term accumulation of smoke impurities on the inner wall of the exhaust pipe 31, which can effectively reduce the blockage of the exhaust pipe 31 caused by the accumulation of smoke impurities, effectively reduce the blockage of the inner wall of the exhaust pipe 31 that makes it difficult to clean, and can effectively reduce the blockage of the exhaust pipe 31 by smoke impurities that causes the welding smoke extraction effect to decrease.

[0032] like Figure 8As shown, a collecting groove 6 is provided on the top of the slider 5; the collecting groove 6 is provided in the middle of the slider 5; when working, the smoke and dust impurities adsorbed on the inner wall of the exhaust pipe 31 are scraped off during the sliding of the slider 5, and the scraped smoke and dust impurities enter the collecting groove 6, and the smoke and dust impurities are collected by the collecting groove 6. The scraped smoke and dust impurities can be effectively collected by the collecting groove 6, which effectively reduces the scattering of smoke and dust impurities after the inner wall of the exhaust pipe 31 is cleaned, and can make the smoke and dust impurities quickly be extracted in the collecting groove 6, which can effectively reduce the smoke and dust impurities from floating and hiding in the corners of the elastic plate 51 and the elastic cloth 52, and effectively reduce the problem of smoke and dust impurities being difficult to clean.

[0033] During operation, the mover seat 1 is installed in the middle of the linear motor shaft 71, the battery module is placed on the electric lift 72, the electric lift 72 is pushed into the workbench 7, the height of the electric lift 72 is adjusted, the battery module welding position point is scanned by the side-axis positioning camera 14, the precise position of the welding point is measured, and the welding galvanometer 15 is guided to perform welding, the lifting assembly 11 is moved by the ranging displacement laser sensor 13 to adjust the welding height of the welding galvanometer 15, and a suitable welding pressure head 24 is installed at the bottom of the second fixing frame 22, and the battery module is welded. During the process, after the servo electric cylinder 2 is turned on, the output end is pressed downward, and the output end of the servo electric cylinder 2 contacts the top of the second fixing frame 22, so that the second fixing frame 22 slides in the middle of the slide rail 21, and the welding pressure head 24 presses the battery module through the second fixing frame 22, and the pressing force is set and monitored by the pressure sensor 23, and the fixing block 3 is placed in the middle of the two exhaust pipes 31, and the two fixing blocks 3 are connected by bolts, and the exhaust pipe 31 is fixed by the fixing block 3, and one end of the exhaust pipe 31 is connected to the smoke and dust purifier pipeline, and the other end of the exhaust pipe 31 is connected to the smoke and dust purifier pipeline. Set at the corresponding welding position, when the battery module is welded, the welding area is smoked by the smoke and dust purifier, and when the welding position of the battery module is pressed by the welding pressure head 24, the bottom end of the spring 41 first contacts the battery module, and the sliding rod 4 slides upward in the middle of the welding pressure head 24 during the process of pressing downward. When the sliding rod 4 slides upward, the spring 41 is elastically stretched. When the welding pressure head 24 stops applying pressure to the battery module, the sliding rod 4 is reset by elastic contraction of the spring 41. When the smoke and dust purifier is smoking through the exhaust pipe 31 When the airflow passes through the middle of the slider 5 and blows toward the multiple groups of elastic plates 51, the multiple groups of elastic plates 51 are elastically opened toward the side walls of the exhaust pipe 31 by the wind force of the airflow, and the elastic cloth 52 is elastically stretched by the elastic plates 51. At the same time, the airflow lifts the slider 5 to slide toward the top of the exhaust pipe 31, and the smoke and dust adsorbed on the inner wall of the exhaust pipe 31 is scraped off by the top of the slider 5. The slider 5 is limited by the two groups of positioning blocks 53. During the sliding process of the slider 5, the smoke and dust impurities adsorbed on the inner wall of the exhaust pipe 31 are scraped off, and the scraped smoke and dust impurities enter the inside of the collecting tank 6, and the smoke and dust impurities are collected by the inside of the collecting tank 6.

[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A battery module welding device, comprising a workbench (7); characterized in that: A linear motor shaft (71) is installed on the top of the workbench (7); an electric lifting vehicle (72) is installed in the middle of the workbench (7); a mover seat (1) is installed in the middle of the linear motor shaft (71); a fixed plate (10) is fixedly connected to the middle of the mover seat (1); a lifting assembly (11) is fixedly connected to the middle of the fixed plate (10); a first fixed frame (12) is slidably connected to the side wall of the lifting assembly (11); a ranging displacement laser sensor (13) is fixedly connected to the middle of the first fixed frame (12); a paraxial positioning camera (14) is fixedly connected to the bottom of the first fixed frame (12); and a welding galvanometer (15) is fixedly connected to the side wall of the first fixed frame (12).

2. A battery module welding device according to claim 1, characterized in that: A servo electric cylinder (2) is fixedly connected to the middle of the fixed plate (10); the servo electric cylinder (2) is fixedly connected near the top of the fixed plate (10); a slide rail (21) is fixedly connected to the middle of the fixed plate (10); a second fixed frame (22) is slidably connected to the middle of the slide rail (21); a pressure sensor (23) is fixedly connected to the middle of the second fixed frame (22); a welding pressure head (24) is fixedly connected to the side wall of the second fixed frame (22); the welding pressure head (24) is fixedly connected near the bottom of the second fixed frame (22).

3. A battery module welding device according to claim 2, characterized in that: Two fixing blocks (3) are fixedly connected to the middle of the second fixing frame (22); the two fixing blocks (3) are threadedly connected; and an exhaust pipe (31) is installed in the middle of the two fixing blocks (3).

4. A battery module welding device according to claim 3, characterized in that: The middle part of the welding pressure head (24) is slidably connected to a plurality of groups of sliding rods (4); the spacing between the plurality of groups of sliding rods (4) is equal; the end of the sliding rod (4) is fixedly connected to a spring (41); the end of the spring (41) is fixedly connected to the top of the welding pressure head (24).

5. A battery module welding device according to claim 4, characterized in that: The middle of the air exhaust pipe (31) is slidably connected to a slider (5); the middle of the slider (5) is hollow; the top of the slider (5) is fixedly connected to a plurality of groups of elastic plates (51); the plurality of groups of elastic plates (51) are equidistantly distributed; an elastic cloth (52) is fixedly connected between two elastic plates (51) that are close to each other; two groups of positioning blocks (53) are fixedly connected to the middle of the air exhaust pipe (31); and each group of positioning blocks (53) is arranged opposite to each other.

6. A battery module welding device according to claim 5, characterized in that: The top of the slider (5) is provided with a collecting groove (6), and the collecting groove (6) is provided in the middle of the slider (5).

Images