Ultrasonic welding machine for lithium battery contact welding

Abstract

The invention discloses an ultrasonic welding machine for lithium battery contact welding, and relates to the technical field of ultrasonic welding, the ultrasonic welding machine comprises a base, a machine body is fixedly mounted at the top of the base, a first motor is fixedly mounted at the top of the machine body, a square block is slidably mounted in the machine body, and a welding head is fixedly mounted at the front part of the square block; a workbench is fixedly mounted at the top of the base, a clamping device is arranged at the top of the base, a protection device is arranged at the top of the workbench, a cooling device is arranged at the top of the base, and the clamping device comprises a first threaded rod, a first gear, a second gear, a second threaded rod, a third gear, a sleeve, a moving column, a push plate, a telescopic column and a clamping plate. The clamping rod begins to rotate to clamp the first threaded rod, so that the first threaded rod is difficult to rotate, it is ensured that the battery cannot be damaged due to continuous clamping, the battery is prevented from being damaged by clamping or pressing during welding, and battery faults caused by structural damage are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic welding, in particular to an ultrasonic welding machine for contact welding of lithium batteries. Background Art

[0002] The ultrasonic welding machine for lithium battery contact welding is a specially designed device that uses ultrasonic technology to efficiently weld battery contacts together.

[0003] The patent with patent announcement number CN218362668U relates to the field of ultrasonic welding technology. The patent discloses an ultrasonic spot welding machine, including a mounting base, a column arranged on the upper surface of the mounting base, and an ultrasonic welding head with a spot welding head. A movable plate is arranged on one side of the column on the upper surface of the base, and the movable plate is connected to a power mechanism inside the mounting base. A support plate is arranged on the outer side of the movable plate, and an open groove is opened on the lower surface of the support plate. Two first clamping plates are arranged on the inner side of the open groove of the support plate, and the inner surface of the first clamping plate abuts against the side surface of the movable plate. An adjusting bolt is arranged on the outer surface of the support plate, and the adjusting bolt passes through a threaded hole on the side surface of the support plate. The beneficial effect achieved by the patent is: by rotating the adjusting bolt connected to the first clamping plate, the position of the support plate and the lithium battery on the upper surface of the support plate is adjusted, so that the welding part is below the ultrasonic welding head, which greatly improves the welding efficiency.

[0004] In the above patent, the position of the support plate and the lithium battery on the upper surface of the support plate is adjusted by rotating the adjusting bolt connected to the first clamping plate, so that the welding part is located below the ultrasonic welding head, which greatly improves the welding efficiency. However, when using the clamping plate to clamp the battery, manual control of the clamping force may cause the battery to be damaged or leak under continuous clamping, resulting in danger when spot welding the battery. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an ultrasonic welding machine for lithium battery contact welding, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ultrasonic welding machine for contact welding of lithium batteries comprises a base, a body is fixedly installed on the top of the base, a No. 1 motor is fixedly installed on the top of the body, a block is slidably installed inside the body, a welding head is fixedly installed on the front of the block, a workbench is fixedly installed on the top of the base, a clamping device is arranged on the top of the base, a protective device is arranged on the top of the workbench, and a cooling device is arranged on the top of the base; Wherein, the clamping device includes a No. 1 threaded rod, a No. 1 gear, a No. 2 gear, a No. 2 threaded rod, a No. 3 gear, a sleeve, a movable column, a push plate, a telescopic column and a splint, wherein the No. 1 threaded rod is rotatably installed on the top of the base, the No. 1 gear is fixedly installed on the right side of the No. 1 threaded rod, the No. 2 gear is rotatably installed on the top of the base, the No. 2 threaded rod is rotatably installed on the top of the base, the No. 3 gear is fixedly installed on one end of the No. 2 threaded rod close to the No. 2 gear, the sleeve is threadedly connected to the No. 1 threaded rod, the movable column is fixedly installed on the top of the sleeve, the push plate is fixedly installed on the left side of the movable column, the telescopic column slides through the push plate, and the splint is fixedly installed on one end of the telescopic column away from the push plate, the No. 1 threaded rod rotates to drive the sleeve to start moving, the sleeve starts to drive the moving column to start moving, the moving column moves to drive the push plate to start moving, the push plate moves to drive the telescopic column to start moving, and the telescopic column moves to drive the splint to start moving.

[0007] According to the above technical solution, the clamping device also includes a card rod and a push block. The card rod is rotatably installed on the top of the push plate, and the push block is fixedly installed on the top of the clamp. When the clamp moves to clamp the battery, the clamp stops moving when it contacts the battery. As the moving column continues to move, the card rod continues to approach the push block, and then the push block blocks the movement of the card rod, and the card rod starts to rotate.

[0008] According to the above technical solution, the No. 1 gear is meshed with the No. 2 gear, the No. 2 gear is meshed with the No. 3 gear, and a No. 1 spring is provided between the push plate and the clamp plate. The meshing of the No. 1 gear and the No. 2 gear ensures that the No. 1 gear can drive the No. 2 gear to rotate while rotating, and the meshing of the No. 2 gear and the No. 3 gear ensures that the No. 2 gear can drive the No. 3 gear to rotate while rotating. The No. 1 spring is provided to ensure that the clamp plate can be reset in time.

[0009] According to the above technical scheme, the protective device includes a fixed rod, a slider, a baffle, a No. 1 fixed block, a scraper rod, a No. 2 fixed block and a connecting rod, the fixed rod is fixedly installed on the front of the moving column, the slider is fixedly installed on the front of the fixed rod, the baffle is slidably installed on the front of the slider, the No. 1 fixed block is fixedly installed on the top of the baffle, the scraper rod is slidably installed on the top of the workbench, the No. 2 fixed block is fixedly installed on the top of the scraper rod, the end of the connecting rod close to the scraper rod is rotatably installed between the two No. 2 fixed blocks, and the end of the connecting rod away from the scraper rod is rotatably installed on the two No. 1 fixed blocks, the movement of the fixed rod drives the slider to start moving in the slide groove opened on the baffle, the movement of the slider in the slide groove drives the baffle to start moving, and the baffle moves and rises.

[0010] According to the above technical solution, a slide groove is provided on the back of the baffle, and the top of the scraper rod is set as an inclined surface. The slide groove is provided to ensure that the baffle can move in a specified direction under the push of the slider, and the inclined surface is set to ensure that the scraper rod can be more convenient in scraping away dust and debris.

[0011] According to the above technical scheme, the cooling device includes a fixed column, a rotating block, a cylinder, a cylinder push plate, a cylinder push rod, a nozzle and a push rod. The fixed column is fixedly installed on the top of the base, the rotating block is rotatably installed on the top of the fixed column, the cylinder is fixedly installed on the top of the rotating block, the cylinder push plate is slidably installed on the inner wall of the cylinder, the cylinder push rod is fixedly installed on the back of the cylinder push plate, the nozzle is fixedly installed on the front of the cylinder, and the push rod is fixedly installed on the front of the block. Motor No. 1 drives the block to start moving, the movement of the block drives the welding head and the push rod to start moving, the push rod movement drives the cylinder push rod to start moving, and the cylinder push rod movement drives the cylinder push plate to start moving.

[0012] According to the above technical scheme, the cooling device also includes a No. 2 motor, a reciprocating screw, a moving block, a connecting rod and a rotating rod. The No. 2 motor is fixedly installed on the left side of the fixed column, the reciprocating screw is fixedly installed on the output end of the No. 2 motor, the moving block is slidably installed on the circumferential surface of the reciprocating screw, the connecting rod is rotatably installed in the front of the moving block, the end of the rotating rod close to the connecting rod is rotatably installed on the top of the connecting rod, and the end of the rotating rod away from the connecting rod is rotatably installed in the front of the rotating block. The No. 2 motor drives the reciprocating screw to start rotating, the rotation of the reciprocating screw drives the moving block to start moving, the movement of the moving block drives the connecting rod to start moving, the movement of the connecting rod drives the rotating rod to start moving, and the movement of the rotating rod drives the rotating block to start rotating.

[0013] According to the above technical solution, the side where the cylinder push rod and the push rod contact each other is set as an inclined surface, and a No. 2 spring is provided between the cylinder and the cylinder push plate. By setting the inclined surface, the cylinder push rod can move more smoothly when the push rod pushes the cylinder push rod, and by setting the No. 2 spring, it is ensured that the cylinder push plate can be reset in time under the action of the No. 2 spring.

[0014] The present invention provides an ultrasonic welding machine for lithium battery contact welding. It has the following beneficial effects: (1) This invention starts to move the push plate by moving the moving column, and clamps the battery to be spot welded by moving both sides together, which can effectively fix the battery, reduce uneven heat distribution caused by vibration or movement, provide stable support, and prevent the battery from moving or displacing during welding, thereby ensuring the precise docking of the welding point and improving the welding quality. At the same time, the clamping rod starts to rotate to clamp the No. 1 threaded rod to make it difficult to rotate, ensuring that the battery will not be damaged due to continuous clamping, preventing the battery from being clamped or crushed during welding, thereby protecting the integrity and performance of the battery and avoiding battery failure due to structural damage.

[0015] (2) This invention ensures the safety of workers when spot welding batteries by moving the baffle plate upward to shield the front of the welding machine, thereby improving safety and preventing workers from being injured when there is danger and no protection during spot welding. At the same time, the scraper rod starts to move by moving the No. 2 fixed block. The scraper rod moves to scrape away impurities and dust on the surface of the workbench, ensuring a clean working environment during spot welding, ensuring the normal operation of its components, and preventing welding problems due to equipment failure.

[0016] (3) This invention pushes the gas inside the cylinder by moving the cylinder push plate so that the gas is ejected from the nozzle at the front of the cylinder, cleaning the surface to be welded and ensuring that the welding surface is free of dust and other dirt, so as to avoid poor welding or poor contact, and avoid welding failure due to poor contact. At the same time, the cylinder is driven to rotate by the rotation of the turn block. The rotation of the cylinder will spray air at multiple angles, accelerate the air circulation around the spot welding environment, ensure that the ambient temperature is not too high during spot welding, and prevent the high temperature generated by ultrasonic welding. Improper control may cause overheating of battery contacts or other components, and even cause damage or short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the structure of the clamping device of the present invention; Figure 3 It is a schematic cross-sectional view of the structure of the protective device of the present invention; Figure 4 It is a schematic cross-sectional view of the structure of the cooling device of the present invention; Figure 5 It is a cross-sectional schematic diagram of the baffle and scraper rod structure of the present invention; Figure 6 It is a cross-sectional schematic diagram of the cylinder and the fixed column structure of the present invention; Figure 7 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A.

[0018] In the figure: 1, base; 2, machine body; 3, motor No. 1; 4, block; 5, welding head; 6, workbench; 701, threaded rod No. 1; 702, gear No. 1; 703, gear No. 2; 704, threaded rod No. 2; 705, gear No. 3; 706, sleeve; 707, moving column; 708, push plate; 709, telescopic column; 710, clamping plate; 711, clamping rod; 712, push block; 801, fixed rod; 802, slider; 803, baffle; 804, fixed block No. 1; 805, scraper rod; 806, fixed block No. 2; 807, connecting rod; 901, fixed column; 902, rotating block; 903, cylinder; 904, cylinder push plate; 905, cylinder push rod; 906, nozzle; 907, motor No. 2; 908, reciprocating screw; 909, moving block; 910, connecting rod; 911, rotating rod; 912, push rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 , one embodiment of the present invention is: an ultrasonic welding machine for contact welding of lithium batteries, comprising a base 1, a body 2 is fixedly installed on the top of the base 1, a No. 1 motor 3 is fixedly installed on the top of the body 2, a block 4 is slidably installed inside the body 2, a welding head 5 is fixedly installed on the front of the block 4, a workbench 6 is fixedly installed on the top of the base 1, and a clamping device is arranged on the top of the base 1; The clamping device includes a No. 1 threaded rod 701, a No. 1 gear 702, a No. 2 gear 703, a No. 2 threaded rod 704, a No. 3 gear 705, a sleeve 706, a movable column 707, a push plate 708, a telescopic column 709 and a clamping plate 710. The No. 1 threaded rod 701 is rotatably mounted on the top of the base 1, the No. 1 gear 702 is fixedly mounted on the right side of the No. 1 threaded rod 701, the No. 2 gear 703 is rotatably mounted on the top of the base 1, the No. 2 threaded rod 704 is rotatably mounted on the top of the base 1, the No. 3 gear 705 is fixedly mounted on one end of the No. 2 threaded rod 704 close to the No. 2 gear 703, and the sleeve 706 is connected to the No. 1 threaded rod 701. The threaded rod 701 is threadedly connected, the movable column 707 is fixedly installed on the top of the sleeve 706, the push plate 708 is fixedly installed on the left side of the movable column 707, the telescopic column 709 slides through the push plate 708, and the clamping plate 710 is fixedly installed on the end of the telescopic column 709 away from the push plate 708. The push plate 708 starts to move when the movable column 707 moves. The batteries that need to be spot welded are clamped when both sides move together, which can effectively fix the batteries, reduce uneven heat distribution caused by vibration or movement, provide stable support, and prevent the battery from moving or displacing during welding, thereby ensuring the precise docking of the welding points and improving the welding quality.

[0021] The clamping device also includes a clamping rod 711 and a push block 712. The clamping rod 711 is rotatably installed on the top of the push plate 708, and the push block 712 is fixedly installed on the top of the clamping plate 710. The clamping rod 711 starts to rotate to clamp the No. 1 threaded rod 701 to make it difficult to rotate, thereby ensuring that the battery will not be damaged due to continuous clamping, preventing the battery from being clamped or crushed during welding, thereby protecting the integrity and performance of the battery and avoiding battery failure due to structural damage.

[0022] The first gear 702 is meshed with the second gear 703, the second gear 703 is meshed with the third gear 705, and a first spring is provided between the push plate 708 and the clamping plate 710. The meshing of the first gear 702 and the second gear 703 ensures that the first gear 702 can drive the second gear 703 to rotate together when it rotates, and the meshing of the second gear 703 and the third gear 705 ensures that the second gear 703 can drive the third gear 705 to rotate together when it rotates. The provision of the first spring ensures that the clamping plate 710 can be reset in time.

[0023] When the present embodiment is working: the battery to be spot welded is placed on the top of the workbench 6, and then the No. 1 threaded rod 701 is rotated, the No. 1 threaded rod 701 rotates to drive the sleeve 706 to start moving, the sleeve 706 starts to drive the moving column 707 to start moving, the moving column 707 moves to drive the push plate 708 to start moving, the push plate 708 moves to drive the telescopic column 709 to start moving, the telescopic column 709 moves to drive the clamping plate 710 to start moving, and at the same time, the No. 1 threaded rod 701 rotates to drive the No. 1 gear 702 to start rotating, the No. 1 gear 702 rotates to drive the No. 2 gear 703 to start rotating, the No. 2 gear 703 rotates to drive the No. 3 gear 705 to start rotating, the No. 3 gear 705 rotates to drive the No. 2 threaded rod 704 to start rotating, the No. 2 threaded rod 704 rotates to drive the same structure as above Moving together, the batteries that need to be spot welded are clamped when both sides move together, which can effectively fix the batteries, reduce uneven heat distribution caused by vibration or movement, provide stable support, and prevent the battery from moving or displacing during welding, thereby ensuring the precise docking of the welding points and improving the welding quality. At the same time, when the clamp 710 moves to clamp the battery, it stops moving when the clamp 710 contacts the battery. As the moving column 707 continues to move, the clamp rod 711 continues to approach the push block 712, and then the push block 712 blocks the movement of the clamp rod 711. The clamp rod 711 starts to rotate and clamps the No. 1 threaded rod 701 to make it difficult to rotate, ensuring that the battery will not be damaged due to continuous clamping, preventing the battery from being clamped or crushed during welding, thereby protecting the integrity and performance of the battery and avoiding battery failure caused by structural damage.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a protective device is provided on the top of the workbench 6, and a cooling device is provided on the top of the base 1. The protective device includes a fixed rod 801, a slider 802, a baffle 803, a first fixed block 804, a scraper rod 805, a second fixed block 806 and a connecting rod 807. The fixed rod 801 is fixedly installed in front of the moving column 707, the slider 802 is fixedly installed in front of the fixed rod 801, the baffle 803 is slidably installed in front of the slider 802, and the first fixed block 804 is fixedly installed on the baffle 80 3, the scraper rod 805 is slidably installed on the top of the workbench 6, the second fixed block 806 is fixedly installed on the top of the scraper rod 805, the end of the connecting rod 807 close to the scraper rod 805 is rotatably installed between the two second fixed blocks 806, and the end of the connecting rod 807 away from the scraper rod 805 is rotatably installed on the two first fixed blocks 804, and the baffle plate 803 moves up to shield the front of the welding machine to ensure the safety of the workers when spot welding the battery, improve the safety, and prevent the workers from being injured when there is no protection when spot welding.

[0025] A slide groove is provided on the back of the baffle 803, and the top of the scraper rod 805 is set as an inclined surface. The slide groove ensures that the baffle 803 can move in a specified direction under the push of the slider 802, and the inclined surface ensures that the scraper rod 805 can be more convenient in scraping dust and debris.

[0026] The cooling device includes a fixed column 901, a rotating block 902, a cylinder 903, a cylinder push plate 904, a cylinder push rod 905, a nozzle 906 and a push rod 912. The fixed column 901 is fixedly installed on the top of the base 1, the rotating block 902 is rotatably installed on the top of the fixed column 901, the cylinder 903 is fixedly installed on the top of the rotating block 902, the cylinder push plate 904 is slidably installed on the inner wall of the cylinder 903, the cylinder push rod 905 is fixedly installed on the back of the cylinder push plate 904, the nozzle 906 is fixedly installed on the front of the cylinder 903, and the push rod 912 is fixedly installed on the front of the block 4. The cylinder push plate 904 is moved to push the gas inside the cylinder 903 so that the gas is ejected from the nozzle 906 at the front of the cylinder 903, and the surface to be welded is cleaned to ensure that the welding surface is free of dust and other dirt to avoid poor welding or poor contact, and avoid welding failure due to poor contact.

[0027] The cooling device also includes a No. 2 motor 907, a reciprocating screw 908, a moving block 909, a connecting rod 910 and a rotating rod 911. The No. 2 motor 907 is fixedly installed on the left side of the fixed column 901, the reciprocating screw 908 is fixedly installed on the output end of the No. 2 motor 907, the moving block 909 is slidably installed on the circumferential surface of the reciprocating screw 908, the connecting rod 910 is rotatably installed in front of the moving block 909, the end of the rotating rod 911 close to the connecting rod 910 is rotatably installed on the top of the connecting rod 910, and the end of the rotating rod 911 away from the connecting rod 910 is rotatably installed in front of the rotating block 902. The rotation of the rotating block 902 drives the cylinder 903 to start rotating. The rotation of the cylinder 903 will spray air at multiple angles to accelerate the air circulation around the spot welding environment, ensure that the ambient temperature will not be too high during spot welding, and prevent the high temperature generated by ultrasonic welding. Improper control may cause overheating of battery contacts or other components, and even cause damage or short circuit.

[0028] The side where the cylinder push rod 905 and the push rod 912 contact each other is set as an inclined surface, and a No. 2 spring is provided between the cylinder 903 and the cylinder push plate 904. By setting the inclined surface, the push rod 912 can push the cylinder push rod 905 more smoothly. By setting the No. 2 spring, it is ensured that the cylinder push plate 904 can be reset in time under the action of the No. 2 spring.

[0029] When the present embodiment is working, when the movable column 707 moves, it drives the fixed rod 801 to start moving, and the fixed rod 801 moves to drive the slider 802 to start moving in the chute provided on the baffle 803, and the slider 802 moves in the chute to drive the baffle 803 to start moving, and the baffle 803 moves up to block the front of the welding machine to ensure the safety of the staff when spot welding the battery, improve the safety, and prevent the staff from being injured when there is danger and no protection during spot welding. At the same time, when the baffle 803 moves up to block, it drives the No. 1 fixed block 804 to start moving, and the No. 1 fixed block 804 moves to drive the connecting rod 807 to start moving, and the connecting rod 807 moves to pull the No. 2 fixed block 806 to start moving, and the No. 2 fixed block 806 moves to drive the scraper rod 805 to start moving, and the scraper rod 805 moves to scrape away the impurities and dust on the surface of the workbench 6 to ensure a clean working environment during spot welding, ensure the normal operation of its components, and prevent welding problems due to equipment failure.

[0030] After the above work is completed, start the No. 1 motor 3, so that the No. 1 motor 3 drives the block 4 to start moving, the movement of the block 4 drives the welding head 5 and the push rod 912 to start moving, the push rod 912 moves to push the cylinder push rod 905 to start moving, the cylinder push rod 905 moves to push the cylinder push plate 904 to start moving, the cylinder push plate 904 moves to push the gas inside the cylinder 903 so that the gas is ejected from the nozzle 906 at the front of the cylinder 903, clean the surface to be welded and ensure that there is no dust and other dirt on the welding surface to avoid poor welding or poor contact, and avoid welding failure due to poor contact. At the same time, start the No. 2 motor 907, so that the No. 2 motor 907 can be welded. The motor 907 drives the reciprocating screw rod 908 to start rotating. The rotation of the reciprocating screw rod 908 drives the moving block 909 to start moving. The movement of the moving block 909 drives the connecting rod 910 to start moving. The movement of the connecting rod 910 drives the rotating rod 911 to start moving. The movement of the rotating rod 911 drives the rotating block 902 to start rotating. The rotation of the rotating block 902 drives the cylinder 903 to start rotating. The rotation of the cylinder 903 will spray air at multiple angles to accelerate the air circulation around the spot welding environment, ensure that the ambient temperature will not be too high during spot welding, and prevent the high temperature generated by ultrasonic welding. Improper control may cause overheating of the battery contacts or other components, and even cause damage or short circuit.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic welding machine for lithium battery contact welding, comprising a base (1), characterized in that: A body (2) is fixedly mounted on the top of the base (1), a No. 1 motor (3) is fixedly mounted on the top of the body (2), a block (4) is slidably mounted inside the body (2), a welding head (5) is fixedly mounted on the front of the block (4), a workbench (6) is fixedly mounted on the top of the base (1), a clamping device is provided on the top of the base (1), a protective device is provided on the top of the workbench (6), and a cooling device is provided on the top of the base (1); The clamping device comprises a No. 1 threaded rod (701), a No. 1 gear (702), a No. 2 gear (703), a No. 2 threaded rod (704), a No. 3 gear (705), a sleeve (706), a movable column (707), a push plate (708), a telescopic column (709) and a clamping plate (710), wherein the No. 1 threaded rod (701) is rotatably mounted on the top of the base (1), the No. 1 gear (702) is fixedly mounted on the right side of the No. 1 threaded rod (701), the No. 2 gear (703) is rotatably mounted on the top of the base (1), and the No. 2 threaded rod (704) is rotatably mounted on the top of the base (1), the third gear (705) is fixedly mounted on one end of the second threaded rod (704) close to the second gear (703), the sleeve (706) is threadedly connected to the first threaded rod (701), the movable column (707) is fixedly mounted on the top of the sleeve (706), the push plate (708) is fixedly mounted on the left side of the movable column (707), the telescopic column (709) slides through the push plate (708), and the clamping plate (710) is fixedly mounted on one end of the telescopic column (709) away from the push plate (708).

2. The ultrasonic welding machine for lithium battery contact welding according to claim 1, characterized in that: The clamping device further comprises a clamping rod (711) and a push block (712), wherein the clamping rod (711) is rotatably mounted on the top of the push plate (708), and the push block (712) is fixedly mounted on the top of the clamping plate (710).

3. The ultrasonic welding machine for lithium battery contact welding according to claim 2, characterized in that: The first gear (702) meshes with the second gear (703), the second gear (703) meshes with the third gear (705), and a first spring is provided between the push plate (708) and the clamping plate (710).

4. The ultrasonic welding machine for lithium battery contact welding according to claim 3, characterized in that: The protective device comprises a fixed rod (801), a slider (802), a baffle (803), a first fixed block (804), a scraper rod (805), a second fixed block (806) and a connecting rod (807), wherein the fixed rod (801) is fixedly mounted on the front of a movable column (707), the slider (802) is fixedly mounted on the front of the fixed rod (801), the baffle (803) is slidably mounted on the front of the slider (802), the first fixed block (804) is fixedly mounted on the top of the baffle (803), the scraper rod (805) is slidably mounted on the top of a workbench (6), the second fixed block (806) is fixedly mounted on the top of the scraper rod (805), one end of the connecting rod (807) close to the scraper rod (805) is rotatably mounted between two second fixed blocks (806), and one end of the connecting rod (807) away from the scraper rod (805) is rotatably mounted on two first fixed blocks (804).

5. The ultrasonic welding machine for lithium battery contact welding according to claim 4, characterized in that: A sliding groove is provided on the back of the baffle (803), and the top of the scraper rod (805) is arranged as an inclined surface.

6. The ultrasonic welding machine for lithium battery contact welding according to claim 5, characterized in that: The cooling device comprises a fixed column (901), a rotating block (902), a cylinder (903), a cylinder push plate (904), a cylinder push rod (905), a nozzle (906) and a push rod (912), wherein the fixed column (901) is fixedly mounted on the top of the base (1), the rotating block (902) is rotatably mounted on the top of the fixed column (901), the cylinder (903) is fixedly mounted on the top of the rotating block (902), the cylinder push plate (904) is slidably mounted on the inner wall of the cylinder (903), the cylinder push rod (905) is fixedly mounted on the back of the cylinder push plate (904), the nozzle (906) is fixedly mounted on the front of the cylinder (903), and the push rod (912) is fixedly mounted on the front of the block (4).

7. The ultrasonic welding machine for lithium battery contact welding according to claim 6, characterized in that: The cooling device further comprises a No. 2 motor (907), a reciprocating screw (908), a moving block (909), a connecting rod (910) and a rotating rod (911), wherein the No. 2 motor (907) is fixedly mounted on the left side of the fixed column (901), the reciprocating screw (908) is fixedly mounted on the output end of the No. 2 motor (907), the moving block (909) is slidably mounted on the circumferential surface of the reciprocating screw (908), the connecting rod (910) is rotatably mounted on the front of the moving block (909), one end of the rotating rod (911) close to the connecting rod (910) is rotatably mounted on the top of the connecting rod (910), and one end of the rotating rod (911) away from the connecting rod (910) is rotatably mounted on the front of the rotating block (902).

8. The ultrasonic welding machine for lithium battery contact welding according to claim 7, characterized in that: The surface where the cylinder push rod (905) and the push rod (912) contact each other is set as an inclined surface, and a No. 2 spring is provided between the cylinder (903) and the cylinder push plate (904).

Images