Welding device for lithium battery production

Abstract

The invention relates to the technical field of battery production and manufacturing, and discloses a welding device for lithium battery production, which comprises a heat conversion device, the heat conversion device comprises a laser heat absorption tube, a middle conductor block is welded on the back surface of the laser heat absorption tube, an electron circulation strip is welded on the side surface of the middle conductor block, and the electron circulation strip is welded on the side surface of the middle conductor block. A cold end semiconductor part is welded to one side of the middle conductor block, a storage battery panel is connected to the back face of the cold end semiconductor part through bolts, battery panel fixing foot pieces are welded to the top and the bottom of the storage battery panel correspondingly, and two current transmission lines are electrically connected to the two sides of the storage battery panel correspondingly; the middle of the bottom of the storage cell panel is electrically connected with a motor power supply line, and the problems that in the laser welding process of an existing laser welding device, the energy conversion efficiency of a laser device is usually low, more electric energy or other energy needs to be consumed during laser welding, and the production cost and energy consumption are increased are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production and manufacturing, and more specifically to a welding device for lithium battery production. Background Art

[0002] The welding device for lithium battery production is a device specially used for welding operations in the lithium battery manufacturing process. These devices combine a variety of technologies, including laser welding technology, resistance welding technology, ultrasonic welding technology, etc., to meet the welding needs of different links in the lithium battery production process. Among them, the laser welding device is one of the most common and important welding equipment in lithium battery production. It uses a high-energy laser beam to accurately weld the lithium battery's tabs, shells, sealing covers and other components. Laser welding has the advantages of fast speed, small heat-affected zone, and high weld quality. It is particularly suitable for lithium batteries, which have extremely high requirements for welding accuracy and quality. The working principle of the lithium battery laser welding device is to generate a high-energy laser beam through a laser and focus it on the welding part of the lithium battery. The energy density of the laser beam is extremely high. It can heat the material of the welding part to a molten state in a very short time, and then make the molten materials fuse with each other to form a strong weld by controlling the movement trajectory and speed of the laser beam. Laser welding can realize non-contact welding, with high weld precision and controllable weld size, and can achieve micro-level welding. Laser welding is fast and can weld several meters long welds per second. While ensuring quality, it improves production efficiency. In addition, a uniform molten pool will be formed during the laser welding process to ensure the strength of the weld. No harmful gases and wastewater will be generated during the laser welding process, which is beneficial to environmental protection. Laser welding can be applied to the welding of various materials, including metals such as steel, aluminum, copper, and positive and negative electrodes of batteries, etc. It has a wide range of applications.

[0003] Deficiencies of existing technology: During the laser welding process of existing laser welding devices, the energy conversion efficiency of the laser is usually low, generally less than 10%. This means that laser welding requires more electricity or other energy to produce the same welding effect, increasing production costs and energy consumption. In addition, during high-speed welding, laser welding will produce steam. If the steam cannot be discharged from the weld in time, it may remain inside the workpiece and form pores. The pores will reduce the strength and sealing of the weld joint and affect the welding quality. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding device for lithium battery production to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for lithium battery production, comprising a heat conversion device, characterized in that the heat conversion device comprises a laser heat absorption tube, an intermediate conductor block is welded on the back of the laser heat absorption tube, a cold end semiconductor component is welded on one side of the intermediate conductor block, a storage battery plate is bolted to the back of the cold end semiconductor component, a motor power supply line is electrically connected to the middle of the bottom of the storage battery plate, two current transmission lines are electrically connected to both sides of the storage battery plate, one end of the four current transmission lines is electrically connected to an electronic flow strip, one end of the motor power supply line is electrically connected to a steam elimination motor, and the front of the steam elimination motor is bolted to the steam elimination device, and the heat conversion A laser welding gun device is welded to the top of the device, a welding main frame device is slidably sleeved on the back of the laser welding gun device, a lifting plate device is threadedly connected to the top of the welding main frame device, the steam elimination device includes a fan protection shell, the inner rotating shaft on the back of the fan protection shell is connected to the motor shaft, a steam exhaust fan is welded to one end of the motor shaft, the laser welding gun device includes a light source generating element, the bottom bolt of the light source generating element is connected to a welding laser transmitting head, the side of the light source generating element is sleeved with a transverse slider, the welding main frame device includes main frame legs, the top of the main frame legs is welded with a component placement table board, the lifting plate device includes a medium connecting block, and four lifting and rotating rods are welded to the side of the medium connecting block.

[0006] Furthermore, side connecting ears are welded on both sides of the laser heat absorption tube, heat conversion connecting rods are welded on the tops of the two side connecting ears, a wire feeding connecting rod is welded on one side of the side connecting ear, a vertical connecting block is welded on one end of the wire feeding connecting rod, the bottom bolts on one side of the vertical connecting block are connected to the outer protective shell of the conveyor belt, the internal rotating shaft of the outer protective shell of the conveyor belt is connected to the wire feeding device, the top bolts of the wire feeding device are connected to the welding wire clamp device, the side of the intermediate conductor block is welded with an electron flow strip, and the top and bottom of the storage battery panel are welded with battery panel fixing legs.

[0007] Furthermore, the back rotating shaft of the steam elimination motor is connected to a motor bevel gear, the side of the motor bevel gear is meshed with a transmission bevel gear, the middle rotating shaft of the transmission bevel gear is sleeved with a fulcrum fixing piece, one end of the fulcrum fixing piece is welded with a steam elimination motor, one end of the transmission bevel gear is meshed with a conveyor belt bevel gear, one end of the conveyor belt bevel gear is connected to a wire feeding device by a rotating shaft, the wire feeding device includes a power drum, the side of the power drum is sleeved with a wire feeding crawler, the inner side of one end of the wire feeding crawler is sleeved with a following drum, and the back of the power drum is welded with a conveyor belt bevel gear.

[0008] Furthermore, the welding wire clamp device includes a welding wire clamp main board, the top movable pin of the welding wire clamp main board is connected to a welding wire clamp secondary plate, the front rotating shaft of the welding wire clamp secondary plate is connected to a threaded rod, one end of the threaded rod is welded with a handheld rotating handle, and the bottom bolt of the welding wire clamp main board is connected to a track connecting plate.

[0009] Furthermore, a top shutter is welded on the top of the fan protective shell, a device welding block is welded on the front end of the top of the fan protective shell, and a steam elimination motor is bolted to the back of the fan protective shell.

[0010] Furthermore, the top of the light source generating element is electrically connected to a control signal transmission line, heat conversion connecting rods are welded to both ends of the bottom of the transverse slider, a welding device beam is slidably sleeved on the inner side of the transverse slider, and a heat conversion device is welded to the bottom of the two heat conversion connecting rods.

[0011] Furthermore, four slide rail support columns are welded to the top of the component placement table top, the tops of the four slide rail support columns are bolted to two longitudinal slide rails, the tops of the two longitudinal slide rails are slidably sleeved with a welding device beam, the top of the component placement table top is bolted to an external isolation shell, the top of the external isolation shell is bolted to a main control module, one end of the front of the external isolation shell is bolted to a welding point observation display screen, and the bottom end of the front end of the external isolation shell is bolted to a controller.

[0012] Furthermore, a threaded lifting rod is welded on the top of the medium connection block, a top rotating shaft of the threaded lifting rod is connected to a battery placement table, and a side thread of the threaded lifting rod is sleeved with a component placement table top.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention is provided with a heat conversion device to collect the heat lost during laser propagation through a semiconductor heat-conducting plate, and uses the thermoelectric conversion principle to convert the heat into electrical energy and store it in the battery plate for use by other components. This is conducive to solving the problem that in the laser welding process of existing laser welding devices, the energy conversion efficiency of the laser is usually low, and laser welding requires more electricity or other energy, which increases production costs and energy consumption.

[0015] 2. The present invention is provided with a steam elimination device, and the electric energy converted by the above-mentioned heat conversion device drives the motor, and the operation of the motor drives the fan blades to rotate, so as to blow the water vapor induced by the high temperature of the laser away from the welding workbench in time, which is helpful to avoid the problem that laser welding will generate steam during high-speed welding. If the steam cannot be discharged from the weld in time, it may remain in the workpiece and form pores, which will reduce the strength and sealing of the welded joint and affect the welding quality.

[0016] 3. The present invention is provided with a wire feeding device, and the motor driven by the electric energy converted by the heat conversion device indirectly drives the wire feeding mechanism. When the intensity of the welding laser increases, the electric energy converted by the heat conversion device increases, the power of the motor increases, and the speed of the corresponding wire feeding device increases, so that the wire feeding rate is proportional to the welding laser intensity, which is beneficial to avoid the problems of discontinuous welds, uneven weld width, excessive filling or subsidence of the weld, and deformed welds caused by the mismatch between the welding speed of the welding wire and the wire feeding speed or the instability of the wire feeding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the front structure of the heat conversion device of the present invention;

[0019] Figure 3 It is a schematic diagram of the side structure of the heat conversion device of the present invention;

[0020] Figure 4 It is a schematic diagram of the back structure of the heat conversion device of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the welding wire clamp device of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the wire feeding device of the present invention;

[0023] Figure 7 It is a schematic structural diagram of the steam elimination device of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the laser welding gun device of the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the welding main frame device of the present invention;

[0026] Fig.10 It is a schematic structural diagram of the lifting plate device of the present invention.

[0027] The accompanying drawings are marked as follows: 1. heat conversion device; 101. laser heat absorption tube; 102. side connection ear; 103. wire feeding connecting rod; 104. vertical connection block; 105. outer protective shell of conveyor belt; 106. wire feeding device; 1061. power drum; 1062. wire feeding crawler; 1063. follow-up drum; 107. welding wire clamp device; 1071. welding wire clamp main board; 1072. welding wire clamp secondary board; 1 073, threaded rod; 1074, hand-held rotating handle; 1075, track connecting plate; 108, intermediate conductor block; 109, electronic circulation strip; 110, cold end semiconductor component; 111, storage battery board; 112, battery board fixing foot piece; 113, current transmission line; 114, motor power supply line; 115, steam elimination motor; 116, steam elimination device; 1161, fan protection shell; 1162, top shutter ; 1163, device welding block; 1164, motor shaft; 1165, steam exhaust fan; 117, motor bevel gear; 118, transmission bevel gear; 119, fulcrum fixing piece; 120, conveyor belt bevel gear; 2, laser welding gun device; 201, light source generating element; 202, welding laser emission head; 203, horizontal slider; 204, control signal transmission line; 205, heat conversion connecting rod; 3, welding main frame device; 301, main frame table leg; 302, component placement table; 303, slide rail support column; 304, longitudinal slide rail; 305, welding device crossbeam; 306, external isolation shell; 307, main control module; 308, welding point observation display screen; 309, controller; 4, lifting plate device; 401, medium connection block; 402, lifting and rotating rod; 403, threaded lifting rod; 404, battery placement table. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The welding device for lithium battery production involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0029] Reference Figures 1 to 10 The present invention provides a welding device for lithium battery production, including a heat conversion device 1, a laser welding gun device 2 is welded on the top of the heat conversion device 1, a welding main frame device 3 is slidably sleeved on the back of the laser welding gun device 2, and a lifting plate device 4 is threadedly connected to the top of the welding main frame device 3.

[0030] In a preferred embodiment, the heat conversion device 1 includes a laser heat absorption tube 101, both sides of the laser heat absorption tube 101 are welded with side connection ears 102, the tops of the two side connection ears 102 are welded with heat conversion connecting rods 205, one side of the side connection ear 102 is welded with a wire feeding connecting rod 103, one end of the wire feeding connecting rod 103 is welded with a vertical connecting block 104, the bottom of one side of the vertical connecting block 104 is bolted to a conveyor belt outer protective shell 105, the internal rotating shaft of the conveyor belt outer protective shell 105 is connected to a wire feeding device 106, the top of the wire feeding device 106 is bolted to a welding wire clamp device 107, the back of the laser heat absorption tube 101 is welded with an intermediate conductor block 108, the side of the intermediate conductor block 108 is welded with an electronic circulation strip 109, one side of the intermediate conductor block 108 is welded with a cold end semiconductor component 110, the back of the cold end semiconductor component 110 is bolted to a storage battery plate 111, the storage The top and bottom of the battery storage panel 111 are welded with battery panel fixing legs 112, and both sides of the battery storage panel 111 are electrically connected to two current transmission lines 113, and the middle of the bottom of the battery storage panel 111 is electrically connected to a motor power supply line 114, one end of the four current transmission lines 113 is electrically connected to an electronic flow bar 109, and one end of the motor power supply line 114 is electrically connected to a steam elimination motor 115, and the front bolt of the steam elimination motor 115 is connected to a steam elimination device 116, the back rotating shaft of the steam elimination motor 115 is connected with a motor bevel gear 117, the side of the motor bevel gear 117 is meshed with a transfer bevel gear 118, the middle rotating shaft of the transfer bevel gear 118 is sleeved with a fulcrum fixing piece 119, one end of the fulcrum fixing piece 119 is welded with the steam elimination motor 115, one end of the transfer bevel gear 118 is meshed with a conveyor belt bevel gear 120, and one end of the conveyor belt bevel gear 120 is connected to the wire feeding device 106 on its rotating shaft.

[0031] In this embodiment, it is necessary to specifically add that the laser heat absorption tube 101 is a heat conductor of the thermoelectric conversion device. The laser passes through the laser heat absorption tube 101, and the laser heat absorption tube 101 transfers the surrounding heat to the middle conductor block 108. The two ends of the middle conductor block 108 are the laser heat absorption tube 101 and the cold end semiconductor component 110. The temperature of the laser heat absorption tube 101 is much higher than that of the cold end semiconductor component 110. A temperature difference is formed at the two ends of the middle conductor block 108, and then an electric potential difference is formed. Electrons flow from high potential to low potential. The potential forms an electric current, and the current transmission line 113 transmits the electric current to the storage battery plate 111 for storage. The motor power supply line 114 connects the storage battery plate 111 and the steam elimination motor 115, so that the electric energy in the storage battery plate 111 drives the steam elimination motor 115 to operate. The steam elimination device 116 rotates under the drive of the steam elimination motor 115, and the wire feeding device 106 rotates by the power of the steam elimination motor 115 through the meshing relationship between the motor bevel gear 117, the transmission bevel gear 118 and the conveyor belt bevel gear 120.

[0032] In a preferred embodiment, the wire feeding device 106 includes a power drum 1061, a wire feeding track 1062 is sleeved on the side of the power drum 1061, a follower drum 1063 is sleeved on the inner side of one end of the wire feeding track 1062, and a conveyor belt bevel gear 120 is welded on the back of the power drum 1061.

[0033] In this embodiment, it should be specifically supplemented that the outer periphery of the wire feeding device 106 is sleeved with a conveyor belt outer protective shell 105 .

[0034] In a preferred embodiment, the welding wire clamp device 107 includes a welding wire clamp main board 1071, the top movable pin of the welding wire clamp main board 1071 is connected to a welding wire clamp secondary plate 1072, the front rotating shaft of the welding wire clamp secondary plate 1072 is connected to a threaded rod 1073, one end of the threaded rod 1073 is welded with a hand-held rotating handle 1074, and the bottom bolt of the welding wire clamp main board 1071 is connected to a track connecting plate 1075.

[0035] In this embodiment, it is specifically necessary to supplement that the front thread on the top of the welding wire clamp main plate 1071 is sleeved with the threaded rod 1073, and the threaded rod 1073 rotates and moves forward under the action of the thread to push the welding wire clamp secondary plate 1072 to clamp the welding rod.

[0036] In a preferred embodiment, the steam elimination device 116 includes a fan protective shell 1161, the back of the fan protective shell 1161 is bolted to the steam elimination motor 115, the top of the fan protective shell 1161 is welded with a top shutter 1162, the front end of the top of the fan protective shell 1161 is welded with a device welding block 1163, the inner shaft of the back of the fan protective shell 1161 is connected to the motor shaft 1164, and one end of the motor shaft 1164 is welded with a steam exhaust fan 1165.

[0037] In this embodiment, it should be specifically added that the motor shaft 1164 is formed integrally with the motor shaft of the steam elimination motor 115.

[0038] In a preferred embodiment, the laser welding gun device 2 includes a light source generating element 201, the bottom of which is bolted to a welding laser emitting head 202, the side of which is sleeved with a transverse slider 203, the top of which is electrically connected to a control signal transmission line 204, the inner side of which is slidably sleeved with a welding device crossbeam 305, both ends of the bottom of the transverse slider 203 are welded with heat conversion connecting rods 205, and the bottoms of the two heat conversion connecting rods 205 are welded with a heat conversion device 1.

[0039] In this embodiment, it should be specifically supplemented that the welding laser emitting head 202 is an emitting head of the welding laser, and the control signal transmission line 204 provides power for the laser generator.

[0040] In a preferred embodiment, the welded main frame device 3 includes a main frame table leg 301, a component placement table board 302 is welded to the top of the main frame table leg 301, four slide rail support columns 303 are welded to the top of the component placement table board 302, the tops of the four slide rail support columns 303 are bolted to two longitudinal slide rails 304, the tops of the two longitudinal slide rails 304 are slidably sleeved with a welding device crossbeam 305, the top of the component placement table board 302 is bolted to an external isolation shell 306, the top of the external isolation shell 306 is bolted to a main control module 307, one end of the front side of the external isolation shell 306 is bolted to a welding point observation display screen 308, and the bottom end of the front side of the external isolation shell 306 is bolted to a controller 309.

[0041] In this embodiment, it is specifically necessary to supplement that the top bolts of the two slide rail support columns 303 at the same end of the top of the slide rail support column 303 are connected to a longitudinal slide rail 304, and slide grooves are provided on the front and back of the welding device crossbeam 305. The weld point observation display screen 308 and the controller 309 are located at one end of the external isolation shell 306, and the weld point observation display screen 308 displays the trajectory of the welding point in real time.

[0042] In a preferred embodiment, the lifting plate device 4 includes a medium connecting block 401, four lifting rotating rods 402 are welded on the side of the medium connecting block 401, a threaded lifting rod 403 is welded on the top of the medium connecting block 401, the top rotating shaft of the threaded lifting rod 403 is connected to a battery placement table 404, and the side of the threaded lifting rod 403 is threadedly sleeved with a component placement table top 302.

[0043] In this embodiment, it should be specifically supplemented that a threaded lifting rod 403 has a side surface provided with a thread, and the threaded lifting rod 403 is lifted by rotating through the thread.

[0044] The working principle of the present invention is as follows: the laser passes through the laser heat absorption tube 101, and the laser heat absorption tube 101 transfers the surrounding heat to the middle conductor block 108. The two ends of the middle conductor block 108 are the laser heat absorption tube 101 and the cold end semiconductor component 110 respectively. The temperature of the laser heat absorption tube 101 is much higher than that of the cold end semiconductor component 110. A temperature difference is formed at the two ends of the middle conductor block 108, and then a potential difference is formed. Electrons flow from high potential to low potential to form a current. The current transmission line 113 transmits the current to the storage battery plate 111 for storage. This device collects the heat lost during the laser propagation process through the semiconductor heat conduction plate, and uses the thermoelectric conversion principle to convert the heat into electrical energy and store it in the battery plate for use by other components. This is conducive to solving the problem that in the laser welding process of the existing laser welding device, the energy conversion efficiency of the laser is usually low, and laser welding needs to consume more electricity or other energy, which increases the production cost and energy consumption. The motor power supply line 114 connects the storage battery plate 111 with the steam elimination motor 115, so that the electricity in the storage battery plate 111 The steam elimination motor 115 can be driven to operate. The motor shaft 1164 rotates under the drive of the steam elimination motor 115, so that the steam exhaust fan 1165 rotates to generate wind force, and the water vapor induced by the high temperature of the laser is blown away from the welding workbench in time, which is beneficial to avoid the problem that laser welding will generate steam during high-speed welding. If these steam cannot be discharged from the weld in time, they may remain inside the workpiece and form pores. The pores will reduce the strength and sealing of the welded joint, affecting the welding quality. The wire feeding device 106 rotates by the power of the steam elimination motor 115 through the meshing relationship between the motor bevel gear 117, the transmission bevel gear 118 and the conveyor belt bevel gear 120. When the intensity of the welding laser increases, the electric energy converted by the heat conversion device increases, the power of the motor increases, and the corresponding wire feeding device speed increases, so that the wire feeding rate is proportional to the welding laser intensity, which is beneficial to avoid the problems of discontinuous welds, uneven weld widths, excessive filling or subsidence of welds, and deformed welds caused by the mismatch between the welding speed of the welding wire and the wire feeding speed or the instability of the wire feeding mechanism.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for lithium battery production, comprising a heat conversion device (1), It is characterized in that The heat conversion device (1) comprises a laser heat absorption tube (101), the back of the laser heat absorption tube (101) is welded with an intermediate conductor block (108), one side of the intermediate conductor block (108) is welded with a cold end semiconductor component (110), the back of the cold end semiconductor component (110) is bolted to a storage battery plate (111), the middle of the bottom of the storage battery plate (111) is electrically connected to a motor power supply line (114), both sides of the storage battery plate (111) are electrically connected to two current transmission lines (113), one end of the four current transmission lines (113) is electrically connected to an electronic circulation strip (109), one end of the motor power supply line (114) is electrically connected to a steam elimination motor (115), the front of the steam elimination motor (115) is bolted to a steam elimination device (116), the top of the heat conversion device (1) is welded with a laser welding gun device (2), the back of the laser welding gun device (2) is slidably sleeved The invention discloses a welding main frame device (3), wherein the top of the welding main frame device (3) is threadedly connected to a lifting plate device (4), wherein the steam elimination device (116) comprises a fan protection shell (1161), wherein the inner rotating shaft on the back of the fan protection shell (1161) is connected to a motor rotating shaft (1164), wherein one end of the motor rotating shaft (1164) is welded with a steam exhaust fan (1165), and wherein the laser welding gun device (2) comprises a light source generating element (201), wherein the light source generating element The bottom of the component (201) is bolted with a welding laser emitting head (202), the side of the light source generating element (201) is sleeved with a transverse slider (203), the welding main frame device (3) includes a main frame table leg (301), the top of the main frame table leg (301) is welded with a component placement table board (302), and the lifting plate device (4) includes a medium connection block (401), and the side of the medium connection block (401) is welded with four lifting and rotating rods (402).

2. A welding device for lithium battery production according to claim 1, Features: Side connection ears (102) are welded on both sides of the laser heat absorption tube (101), and heat conversion connecting rods (205) are welded on the tops of the two side connection ears (102). A wire feeding connecting rod (103) is welded on one side of the side connection ear (102), and a vertical connection block (104) is welded on one end of the wire feeding connecting rod (103). The bottom of one side of the vertical connection block (104) is bolted to a conveyor belt outer protective shell (105), and the internal rotating shaft of the conveyor belt outer protective shell (105) is connected to a wire feeding device (106), and the top of the wire feeding device (106) is bolted to a welding wire clamp device (107). The side of the intermediate conductor block (108) is welded with an electron circulation strip (109), and the top and bottom of the storage battery plate (111) are welded with battery plate fixing legs (112).

3. A welding device for lithium battery production according to claim 1, Features: The back rotating shaft of the steam elimination motor (115) is connected to a motor bevel gear (117), the side of the motor bevel gear (117) is meshed with a transmission bevel gear (118), the middle rotating shaft of the transmission bevel gear (118) is sleeved with a fulcrum fixing piece (119), one end of the fulcrum fixing piece (119) is welded with the steam elimination motor (115), and one end of the transmission bevel gear (118) is meshed with a conveyor belt bevel gear (120), a rotating shaft at one end of the conveyor belt bevel gear (120) is connected to a wire feeding device (106), and the wire feeding device (106) includes a power drum (1061), a wire feeding crawler (1062) is sleeved on the side of the power drum (1061), a follower drum (1063) is sleeved on the inner side of one end of the wire feeding crawler (1062), and a conveyor belt bevel gear (120) is welded on the back of the power drum (1061).

4. A welding device for lithium battery production according to claim 2, Features: The welding wire clamp device (107) comprises a welding wire clamp main board (1071), the top movable pin of the welding wire clamp main board (1071) is connected to a welding wire clamp secondary board (1072), the front rotating shaft of the welding wire clamp secondary board (1072) is connected to a threaded rod (1073), one end of the threaded rod (1073) is welded with a hand-held rotating handle (1074), and the bottom bolt of the welding wire clamp main board (1071) is connected to a track connecting plate (1075).

5. A welding device for lithium battery production according to claim 1, Features: A top shutter (1162) is welded to the top of the fan protection shell (1161), a device welding block (1163) is welded to the front end of the top of the fan protection shell (1161), and a steam elimination motor (115) is bolted to the back of the fan protection shell (1161).

6. A welding device for lithium battery production according to claim 1, Features: The top of the light source generating element (201) is electrically connected to a control signal transmission line (204), both ends of the bottom of the transverse slider (203) are welded with heat conversion connecting rods (205), the inner side of the transverse slider (203) is slidably sleeved with a welding device crossbeam (305), and the bottoms of the two heat conversion connecting rods (205) are welded with heat conversion devices (1).

7. A welding device for lithium battery production according to claim 1, Features: Four slide rail support columns (303) are welded to the top of the component placement table top (302), the tops of the four slide rail support columns (303) are bolted to two longitudinal slide rails (304), the tops of the two longitudinal slide rails (304) are slidably sleeved with a welding device crossbeam (305), the top of the component placement table top (302) is bolted to an external isolation shell (306), the top of the external isolation shell (306) is bolted to a main control module (307), one end of the front of the external isolation shell (306) is bolted to a welding point observation display screen (308), and the bottom end of the front end of the external isolation shell (306) is bolted to a controller (309).

8. A welding device for lithium battery production according to claim 1, Features: A threaded lifting rod (403) is welded on the top of the medium connection block (401), a top rotating shaft of the threaded lifting rod (403) is connected to a battery placement table (404), and a component placement table plate (302) is threadedly sleeved on the side of the threaded lifting rod (403).

Images