Plasma welding device for low-speed power battery box production
By designing a plasma welding device with a rotating shaft, support, linear motor, and extraction mechanism, the problem of welding fume pollution was solved, achieving efficient fume purification and operator safety protection.
Patent Information
- Application Number
- CN202511787889.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-01-13
AI Technical Summary
Existing plasma welding equipment used in the production of low-speed power battery boxes generates fumes during the welding process that pollute the environment and endanger health, and the purification effect is poor.
A plasma welding device including a rotating shaft, a support, a linear motor, an exhaust mechanism, and protective components was designed. The exhaust mechanism absorbs and purifies the welding fumes, while the protective components shield the operator from strong light, thus achieving fume purification and operator protection during the welding process.
It effectively absorbs and purifies welding fumes, protects the health of operators, and improves welding efficiency and environmental protection.
Smart Images
Figure CN121315399A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of plasma welding devices, in particular to a plasma welding device for low-speed power battery box production. BACKGROUND
[0002] Under the background of rapid development of the low-speed electric vehicle industry, the structural strength, sealing performance and machining precision of the power battery box as a core bearing component directly affect the use safety and service life of the battery; the plasma welding has become a key processing technology in the production of the low-speed power battery box due to the advantages of energy concentration, good weld density and high welding efficiency, and is widely applied to the splicing and forming of the box plate.
[0003] However, the existing plasma welding device for low-speed power battery box production still has the following problems in actual application: a large amount of welding flue gas containing metal vapor, oxides and harmful gas is generated in the plasma welding process, if the flue gas is directly discharged, the surrounding environment will be polluted, and the operator will inhale the harmful flue gas, which seriously endangers the health of the operator; the existing device lacks a targeted flue gas collecting and purifying mechanism, or only adopts a simple air suction structure, and has the defects of dispersed suction force and low collecting efficiency, so that the harmful flue gas in the welding area cannot be quickly collected and treated, and the purifying effect is poor. SUMMARY
[0004] The application discloses a plasma welding device for low-speed power battery box production.
[0005] In order to achieve the above purpose, the application adopts the following technical scheme: A plasma welding device for low-speed power battery box production, comprising a workbench and a plasma welder arranged in the workbench, and further comprising: A rotating shaft is arranged on the top surface of the workbench, the rotating shaft is provided with a placing rack on the top and a gear two on the bottom; A support one is arranged on one side of the top surface of the workbench, the support one is provided with an electric push rod one, and the movable end of the electric push rod one is provided with a fixing mechanism for fixing the battery box plate; A support two is arranged on the other side of the top surface of the workbench, the support two is provided with a linear motor, the linear motor is provided with an electric push rod two, and the movable end of the electric push rod two is provided with a circular hollow plate, the circular hollow plate is provided with an ion welding head and a protection piece, and the circular hollow plate is provided with a gas hole one; A connecting shaft is arranged on the inner top surface of the workbench, the connecting shaft is provided with a gear one on the outer wall and an air suction mechanism arranged at the bottom of the connecting shaft; The electric telescopic rod is arranged on the inner wall of the workbench, and the movable end of the electric telescopic rod is provided with a driving mechanism for driving gear one and gear two.
[0006] Preferably, the driving mechanism comprises a rectangular frame arranged at the movable end of the electric telescopic rod, a connecting rod slidingly arranged in the rectangular frame, and a double-sided rack arranged at the bottom of the connecting rod, and the double-sided rack cooperates with the driving gear one and the gear two. A cylinder one is arranged on the top surface of the double-sided rack, and an adjusting assembly cooperating with the cylinder one is arranged on the top surface of the inner wall of the workbench.
[0007] Preferably, the adjusting assembly is composed of a plurality of adjusting members. The adjusting member comprises a meshing groove two opened on the top surface of the inner wall of the workbench, a lifting groove opened at the end of the meshing groove two, and a meshing groove one opened at the end of the lifting groove, and a return groove is opened at the end of the meshing groove one, and the return groove is in communication with the meshing groove two.
[0008] Preferably, the protection member comprises a circular cylinder arranged on the circular hollow plate, an annular cavity is opened on the circular cylinder, an annular protection cylinder and a plurality of extrusion springs are slidingly arranged in the annular cavity, and notches are symmetrically opened on the annular protection cylinder.
[0009] Preferably, the fixing mechanism comprises a circular cover arranged at the movable end of the electric push rod one, and an annular box is rotatably arranged on the circular cover. A square block is arranged at the bottom of the annular box, the square block is symmetrically provided with the telescopic rod one and the telescopic rod two, and clamps are arranged on the bottom surfaces of the telescopic rod one and the telescopic rod two.
[0010] Preferably, sleeves are arranged at the movable ends of the telescopic rod one and the telescopic rod two, movable rods are symmetrically slidingly arranged at both ends of the sleeves, air guide boxes are arranged at the ends of the movable rods, air holes two are opened on the bottom surfaces of the air guide boxes, and the annular box and the air guide box are in communication through a corrugated pipe.
[0011] Preferably, an arc-shaped sealing plate is arranged on the bottom surface of the circular cover, and the arc-shaped sealing plate is in contact with the inner wall of the annular box.
[0012] Preferably, the air extraction mechanism comprises a sealing box arranged on the inner wall of the workbench, a piston slidingly arranged in the sealing box, and a connecting rod arranged on the piston. The sealing box and the circular cover are in communication through an air guide pipe one, the circular hollow plate and the air guide pipe one are in communication through an air guide pipe two, and a one-way air inlet valve is arranged on the outer wall of the air guide pipe one. The sealing box is further provided with an air guide pipe three, and a one-way air outlet valve is arranged on the air guide pipe three.
[0013] Preferably, the connecting shaft bottom is provided with a circular plate, the circular plate bottom edge is provided with a cylindrical two, the cylindrical two outer wall is slidably provided with an annular frame, and the annular frame is fixedly connected with the connecting rod.
[0014] Preferably, the air outlet end of the air guide pipe three is provided with an air purifier, and the air purifier is installed on the inner bottom surface of the workbench.
[0015] Therefore, the present application has the following beneficial effects: By using the air extraction mechanism, the harmful smoke generated during welding can be easily absorbed, so that the harmful smoke can be easily purified, which is beneficial to the protection of the surrounding environment; by mutual cooperation of the driving mechanism and the adjusting member, the reciprocating forward and backward movement of the double-sided rack is facilitated, the double-sided rack is switched back and forth with the gear two and the gear one, so that the rotation of the battery box plate and the absorption of the harmful gas are carried out in a certain order, which is beneficial to the welding of the battery box; 2、By using the protection member, the strong light generated during the welding of the plasma welding joint can be easily shielded, so as to avoid the eyes of the operator being damaged by the strong light, and also to facilitate the blocking of the splashing molten droplets, so as to avoid the phenomenon that the skin of the operator is burned and the workpiece is damaged by the splashing molten droplets, thereby facilitating the protection of the operator and the workpiece. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A structure schematic diagram of a front view angle is shown according to an embodiment of the present application; Figure 2 A structure schematic diagram of a front view angle is shown according to an embodiment of the present application; Figure 3 A structure schematic diagram of a driving mechanism first view angle is shown according to an embodiment of the present application; Figure 4 A structure schematic diagram of a driving mechanism second view angle is shown according to an embodiment of the present application; Figure 5 A sectional view of a sealing box is shown according to an embodiment of the present application; Figure 6 A structure schematic diagram of an adjusting assembly is shown according to an embodiment of the present application; Figure 7 A structure schematic diagram of a fixing mechanism first view angle is shown according to an embodiment of the present application; Figure 8 A structure schematic diagram of a fixing mechanism second view angle is shown according to an embodiment of the present application; Figure 9 A structure schematic diagram of a circular cover and an annular box connection is shown according to an embodiment of the present application; Figure 10 A structural schematic diagram of a protector provided by an embodiment of the present application is shown.
[0017] Legend: 1, workbench; 2, support I; 3, electric push rod I; 4, placing rack; 5, air guide pipe I; 6, electric push rod II; 7, plasma welding head; 8, linear motor; 9, support II; 10, circular hollow plate; 11, air guide pipe II; 12, electric telescopic rod; 13, circular plate; 14, sealed box; 15, air purifier; 16, air guide pipe III; 17, adjusting assembly; 1701, lifting groove; 1702, engagement groove I; 1703, engagement groove II; 1704, return groove; 18, piston; 19, annular frame; 20, rectangular frame; 21, connecting shaft; 22, gear I; 23, gear II; 24, rotating shaft; 25, double-sided rack; 26, cylinder I; 27, connecting rod; 28, cylinder II; 29, extrusion spring; 30, square block; 31, telescopic rod I; 32, telescopic rod II; 33, sleeve; 34, movable rod; 35, bellows; 36, air guide box; 37, circular cover; 38, clamp; 39, arc-shaped sealing plate; 40, circular cylinder; 41, annular protection cylinder; 42, annular box. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0019] Please refer to Figure 1 - Figure 10 The present application provides a technical solution: A low-speed power battery box production plasma welding device, comprising a workbench 1 and a plasma welder (as prior art) arranged in the workbench 1, further comprising: The rotating shaft 24 is arranged on the top surface of the workbench 1, the top of the rotating shaft 24 is provided with the placing rack 4, and the placing rack 4 is composed of a square plate and a bar-shaped rod, for supporting the plate material of the battery box; the bottom is provided with the gear II 23, for rotation of the rotating shaft 24, so as to facilitate rotation of the placing rack 4, and further facilitate rotation of the battery box plate material, thereby facilitating welding of the battery box.
[0020] The bracket one 2 is arranged on one side of the top surface of the workbench 1, and the electric push rod one 3 is arranged on the bracket one 2. The use of the electric push rod one 3 facilitates the lifting of the fixing mechanism, so as to facilitate the contact between the battery box plate and the placing rack 4. The movable end of the electric push rod one 3 is provided with a fixing mechanism for fixing the battery box plate. The use of the fixing mechanism facilitates the fixing of the plate of the battery box body, avoids the phenomenon of plate shaking during the welding of the battery box body, and is beneficial to the welding of the battery box body.
[0021] The bracket two 9 is arranged on the other side of the top surface of the workbench 1, and the linear motor 8 is arranged on the bracket two 9. The use of the linear motor 8 facilitates the lifting of the electric push rod two 6 and the circular hollow plate 10, so as to facilitate the lifting of the plasma welding head 7 and further facilitate the welding of the battery box body. The linear motor 8 is provided with the electric push rod two 6, which is used for the transverse movement of the plasma welding head 7. The movable end of the electric push rod two 6 is provided with the circular hollow plate 10, and the plasma welding head 7 and the protection member are arranged on the circular hollow plate 10. The plasma welding head 7 is connected with the plasma welder in the workbench 1. The use of the protection member facilitates the shielding of the strong light generated by the plasma welding head 7 during welding, avoids the damage of the strong light to the eyes of the operator, and also facilitates the blocking of the splashing molten droplets, avoids the phenomenon that the skin of the operator is burned and the workpiece is damaged by the splashing molten droplets, and thus facilitates the protection of the operator and the workpiece. The circular hollow plate 10 is provided with the air hole one, so as to facilitate the entry of the gas generated during welding into the circular hollow plate 10, and thus facilitate the purification of the harmful gas generated during welding and further facilitate the protection of the surrounding environment.
[0022] The connecting shaft 21 is rotatably arranged on the top surface in the workbench 1. The connecting shaft 21 is provided with the gear one 22 and the air extraction mechanism arranged at the bottom of the connecting shaft 21. The use of the air extraction mechanism facilitates the absorption of the harmful smoke generated during welding, so as to facilitate the purification of the harmful smoke and the protection of the surrounding environment.
[0023] The electric telescopic rod 12 is arranged on the inner wall of the workbench 1. The movable end of the electric telescopic rod 12 is provided with the driving mechanism for driving the gear one 22 and the gear two 23. The use of the driving mechanism facilitates the rotation of the gear one 22 and the gear two 23, so as to drive the rotation of the plate of the battery box body and drive the air extraction mechanism to work.
[0024] In the present application, the driving mechanism comprises the rectangular frame 20 arranged at the movable end of the electric telescopic rod 12, the connecting rod 27 slidably arranged in the rectangular frame 20, and the double-sided rack 25 arranged at the bottom of the connecting rod 27. The double-sided rack 25 cooperates with the driving gear one 22 and the gear two 23. The mutual cooperation of the rectangular frame 20 and the connecting rod 27 facilitates the reciprocating movement of the double-sided rack 25. The top surface of the double-sided rack 25 is provided with a cylinder I 26, and the inner top surface of the workbench 1 is provided with an adjusting assembly 17 matched with the cylinder I 26. Through the use of the adjusting assembly 17, the reciprocating forward and backward movement of the double-sided rack 25 is facilitated, the back and forth switching of the double-sided rack 25 and the gear II 23 and the gear I 22 is realized, and thus the rotation of the battery box plate and the absorption of harmful gas are realized.
[0025] In the present application, the adjusting assembly 17 is composed of multiple adjusting components; The adjusting component comprises a meshing groove II 1703 opened on the inner top surface of the workbench 1, a lifting groove 1701 opened at the end of the meshing groove II 1703, and a meshing groove I 1702 opened at the end of the lifting groove 1701. The end of the meshing groove I 1702 is provided with a return groove 1704, the return groove 1704 is communicated with the meshing groove II 1703, and the cylinder I 26 is slidingly arranged in the lifting groove 1701, the meshing groove I 1702, the meshing groove II 1703 and the return groove 1704. When the cylinder I 26 moves in the meshing groove II 1703, the double-sided rack 25 is engaged with the gear II 23, which drives the placement rack 4 to rotate. When the cylinder I 26 moves from one end to the other end of the meshing groove II 1703, the welding part of the battery box is just rotated in front of the plasma welding head 7. Then the cylinder I 26 enters the lifting groove 1701. At this time, the double-sided rack 25 is separated from the gear II 23. When the cylinder I 26 enters the meshing groove I 1702, the double-sided rack 25 is engaged with the gear I 22. Then the cylinder I 26 moves in the meshing groove I 1702, which drives the circular plate 13 to rotate. When the cylinder I 26 moves from one end to the other end of the meshing groove I 1702, the circular plate 13 is just rotated by 360°. Finally, the cylinder I 26 enters the meshing groove II 1703 through the return groove 1704, so that the double-sided rack 25 continues to engage with the gear II 23. By repeating the above operation, the double-sided rack 25 and the gear II 23 and the gear I 22 are engaged back and forth, which is beneficial to the welding of the battery box and the absorption of harmful smoke.
[0026] In the present application, the protection component comprises a circular cylinder 40 arranged on the circular hollow plate 10, an annular cavity is opened on the circular cylinder 40, an annular protection cylinder 41 and multiple extrusion springs 29 are slidingly arranged in the annular cavity, one end of the extrusion spring 29 is fixedly connected with the annular cavity, the other end is fixedly connected with the annular protection cylinder 41, and the annular protection cylinder 41 is extruded to reset the annular protection cylinder 41. The annular protection cylinder 41 is symmetrically provided with notches, which facilitates the contact between the annular protection cylinder 41 and the corner of the battery box.
[0027] In the present application, the fixing mechanism comprises a circular cover 37 arranged at the movable end of the electric push rod I 3 and an annular box 42 rotationally arranged on the circular cover 37. Through the rotationally arranged circular cover 37 and annular box 42, the rotation of the fixing mechanism is facilitated. The bottom of the annular box 42 is provided with a square block 30, and the square block 30 is symmetrically provided with an extension rod one 31 and an extension rod two 32, and the extension rod one 31 and the extension rod two 32 are both provided with locking bolts for fixing the extension rod one 31 and the extension rod two 32; the bottom surfaces of the extension rod one 31 and the extension rod two 32 are both provided with clamps 38, wherein the clamp 38 comprises a fixed plate fixed to the bottom surfaces of the extension rod one 31 and the extension rod two 32 and a movable plate slidingly arranged on the bottom surfaces of the extension rod one 31 and the extension rod two 32, a screw rod is rotatably arranged on the movable plate, one end of the screw rod is movably penetrated through the fixed plate and is threadedly connected with the fixed plate, and a handle is fixed to one end of the screw rod; the handle is rotated to drive the movable plate to move, so that the clamping force between the movable plate and the fixed plate is achieved to fix the battery box plate.
[0028] In the application, the movable ends of the extension rod one 31 and the extension rod two 32 are both provided with sleeves 33, the sleeves 33 are symmetrically slidingly provided with movable rods 34 at two ends, the movable rods 34 are provided with gas guide boxes 36 at end portions, the gas guide boxes 36 are provided with gas holes two at bottom surfaces, and the annular box 42 is communicated with the gas guide boxes 36 through corrugated pipes 35; the position of the gas guide box 36 is adjusted by moving the movable ends of the extension rod one 31 and the extension rod two 32, so that the gas guide box 36 is always located above the welding area, and the harmful smoke is further conveniently absorbed.
[0029] In the application, the bottom surface of the circular cover 37 is provided with an arc-shaped sealing plate 39, and the arc-shaped sealing plate 39 is in contact with the inner wall of the annular box 42; by using the arc-shaped sealing plate 39, the other three corrugated pipes 35 are conveniently blocked, the gas guide box 36 at the top surface of the welding area is opened, the suction force is not too dispersed, and the absorption of the harmful gas is facilitated.
[0030] In the application, the air extraction mechanism comprises a sealing box 14 arranged on the inner wall of the workbench 1, a piston 18 slidingly arranged in the sealing box 14 and a connecting rod 27 arranged on the piston 18. The sealing box 14 is communicated with the circular cover 37 through a gas guide pipe one 5, the circular hollow plate 10 is communicated with the gas guide pipe one 5 through a gas guide pipe two 11, and the outer wall of the gas guide pipe one 5 is provided with a one-way air inlet valve; the gas outside can only enter the sealing box 14 from the gas guide pipe one 5, and the gas in the sealing box 14 cannot flow out from the gas guide pipe one 5. The sealing box 14 is also provided with a gas guide pipe three 16, and the gas guide pipe three 16 is provided with a one-way air outlet valve; the gas in the sealing box 14 can only flow out from the gas guide pipe three 16, and the gas outside cannot enter the sealing box 14 from the gas guide pipe three 16.
[0031] In this invention, a circular plate 13 is provided at the bottom of the connecting shaft 21, and a cylinder 28 is provided at the bottom edge of the circular plate 13. An annular frame 19 is slidably provided on the outer wall of the cylinder 28, and the annular frame 19 is fixedly connected to the connecting rod 27. Through the mutual cooperation of the circular plate 13, the cylinder 28 and the annular frame 19, the piston 18 can be moved back and forth, thereby realizing the collection of harmful smoke and facilitating the purification of harmful smoke.
[0032] In this invention, the air outlet of the air duct 16 is equipped with an air purifier 15 (which is the prior art), and the air purifier 15 is installed on the bottom surface of the workbench 1. By using the air purifier 15, it is convenient to purify the harmful gases generated during welding, thereby facilitating the protection of the surrounding environment.
[0033] Working principle: When using this invention, the center position of the battery box plate is first placed between the movable plate and the fixed plate. Then, the handle is turned to drive the lead screw to rotate, thereby moving the movable plate. The battery box plate is fixed by the clamping force between the movable plate and the fixed plate. Then, the movable ends of the telescopic rod 31 and the telescopic rod 32 are adjusted to assemble the battery box plate together. Finally, the telescopic rod 31 and the telescopic rod 32 are fixed by locking bolts. Then, the battery box plate is moved to the top surface of the placement rack 4 by the electric push rod 3. Then, the electric telescopic rod 12 is opened. The extension of the movable end of the electric telescopic rod 12 drives the rectangular frame 20 to move, which in turn drives the connecting rod 27 to move, thereby driving the double-sided rack 25 to move. At this time, the cylinder 26 moves in the meshing groove 1703 on the side near the fixed end of the electric telescopic rod 12, thereby driving the gear 23 to rotate, which in turn drives the rotating shaft 24 to rotate, further driving the placement frame 4 to rotate, causing the battery box plate to rotate. When the cylinder 26 moves to the junction of the meshing groove 1703 and the lifting groove 1701, the junction of the battery box plate is exactly aligned with the plasma welding head 7. Then, the linear motor 8 moves the plasma welding head 7 to the top of the junction of the battery box plate, and the electric push rod 6 makes the plasma welding head 7 contact the junction of the battery box plate, and the notch of the annular protective cylinder 41 fits with the junction of the battery box plate. Then, the linear motor 8 drives the plasma welding head 7 to move from top to bottom, thereby realizing the welding of the battery box. During the welding of the battery box, the cylinder 26 moves along the lifting groove 1701 into the meshing groove 1702. When the cylinder 26 moves to the junction of the meshing groove 1702 and the lifting groove 1701, the double-sided rack 25 meshes with the gear 23. Then, the cylinder 26 moves along the meshing groove 1702, which drives the gear 22 to rotate, thereby driving the connecting shaft 21 to rotate, which in turn drives the circular plate 13 to rotate. The rotation of the circular plate 13 drives the cylinder 28 to rotate, which in turn drives the annular frame 19 to reciprocate, thereby driving the connecting rod 27 to reciprocate, and further driving the piston 18 to reciprocate. When piston 18 is pushed into sealed box 14, the gas inside sealed box 14 will enter air purifier 15 through air guide pipe 3 16, and the air purifier 15 will purify the harmful fumes. When piston 18 is pulled back out of sealed box 14, suction will be generated on the bottom surface of air guide box 36 above the welding area of battery box and in circular hollow plate 10, so that the harmful fumes generated by welding will enter sealed box 14 through air guide pipe 1 5 and air guide pipe 2 11, so as to collect the harmful fumes and prevent the harmful fumes from escaping, thereby facilitating the protection of the surrounding environment. When the cylinder 26 moves from the junction of the engagement groove 1702 and the lifting groove 1701 to the junction of the engagement groove 1702 and the return groove 1704, the circular plate 13 rotates 360° and the cylinder 26 moves back and forth in the engagement groove 1702 until a gap in the battery box is welded. After the welding of one gap in the battery box is completed, the movable end of the electric push rod 26 retracts, driving the plasma welding head 7 to reset. Then, the cylinder 26 returns to the second meshing groove 2 1703 along the return groove 1704. When the cylinder 26 moves to the junction of the meshing groove 2 1703 and the return groove 1704, the double-sided rack 25 meshes with the gear 23. Repeat the above steps until the four vertical seams of the battery box are welded. Finally, turn the handle to separate the fixed plate and the movable plate, releasing the battery box from its fixation and allowing the battery box to be unloaded.
[0034] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A plasma welding apparatus for producing low-speed power battery casings, comprising a worktable (1) and a plasma welder disposed within the worktable (1), characterized in that, Also includes: Rotating shaft (24), the rotating shaft (24) is rotatably mounted on the top surface of the workbench (1), the top of the rotating shaft (24) is provided with a placement rack (4), and the bottom is provided with a gear two (23); Support 1 (2), the support 1 (2) is set on one side of the top surface of the workbench (1), the support 1 (2) is provided with electric push rod 1 (3), the movable end of the electric push rod 1 (3) is provided with a fixing mechanism for fixing the battery box plate; Support 2 (9) is set on the other side of the top surface of the workbench (1). A linear motor (8) is provided on the support 2 (9). An electric push rod 2 (6) is provided on the linear motor (8). A circular hollow plate (10) is provided at the movable end of the electric push rod 2 (6). A plasma welding head (7) and a protective component are installed on the circular hollow plate (10). A vent hole 1 is opened on the circular hollow plate (10). A connecting shaft (21) is rotatably mounted on the inner top surface of the workbench (1). A gear (22) and an air extraction mechanism are provided on the outer wall of the connecting shaft (21). An electric telescopic rod (12) is provided on the inner wall of the workbench (1). The movable end of the electric telescopic rod (12) is provided with a drive mechanism for driving gear one (22) and gear two (23).
2. The plasma welding apparatus for producing low-speed power battery casings according to claim 1, characterized in that, The drive mechanism includes a rectangular frame (20) disposed at the movable end of the electric telescopic rod (12), a connecting rod (27) slidably disposed within the rectangular frame (20), and a double-sided rack (25) disposed at the bottom of the connecting rod (27), and the double-sided rack (25) cooperates with drive gear one (22) and gear two (23); The top surface of the double-sided rack (25) is provided with a cylinder (26), and the inner top surface of the worktable (1) is provided with an adjustment component (17) that cooperates with the cylinder (26).
3. The plasma welding apparatus for producing low-speed power battery casings according to claim 2, characterized in that, The adjustment assembly (17) consists of multiple sets of adjustment components; The adjusting component includes a second meshing groove (1703) on the inner top surface of the workbench (1), a lifting groove (1701) at the end of the second meshing groove (1703), and a first meshing groove (1702) at the end of the lifting groove (1701). A return groove (1704) is provided at the end of the first meshing groove (1702), and the return groove (1704) is connected to the second meshing groove (1703).
4. The plasma welding apparatus for producing low-speed power battery casings according to claim 1, characterized in that, The protective component includes a circular cylinder (40) disposed on a circular hollow plate (10). An annular cavity is provided on the circular cylinder (40). An annular protective cylinder (41) and a plurality of compression springs (29) are slidably disposed in the annular cavity. Notches are symmetrically provided on the annular protective cylinder (41).
5. The plasma welding apparatus for producing low-speed power battery casings according to claim 4, characterized in that, The fixing mechanism includes a circular cover (37) disposed at the movable end of the electric push rod (3) and an annular box (42) rotatably disposed on the circular cover (37). The bottom of the annular box (42) is provided with a square block (30), and telescopic rod one (31) and telescopic rod two (32) are symmetrically provided on the square block (30). Clamps (38) are provided on the bottom surface of telescopic rod one (31) and telescopic rod two (32).
6. The plasma welding apparatus for producing low-speed power battery casings according to claim 5, characterized in that, Both the telescopic rod one (31) and the telescopic rod two (32) are provided with sleeves (33). The sleeves (33) are symmetrically slidably provided with movable rods (34) at both ends. The movable rods (34) are provided with air guide boxes (36) at their ends. The bottom surface of the air guide boxes (36) is provided with air holes two. The annular box (42) and the air guide boxes (36) are connected by a corrugated pipe (35).
7. The plasma welding apparatus for producing low-speed power battery casings according to claim 6, characterized in that, The circular cover (37) has an arc-shaped sealing plate (39) on its bottom surface, and the arc-shaped sealing plate (39) is in contact with the inner wall of the annular box (42).
8. The plasma welding apparatus for producing low-speed power battery casings according to claim 7, characterized in that, The air extraction mechanism includes a sealing box (14) disposed on the inner wall of the workbench (1), a piston (18) slidably disposed in the sealing box (14), and a connecting rod (27) disposed on the piston (18). The sealed box (14) and the circular cover (37) are connected by an air guide pipe (5), and the circular hollow plate (10) and the air guide pipe (5) are connected by an air guide pipe (11). A one-way air inlet valve is provided on the outer wall of the air guide pipe (5). The sealed box (14) is also provided with a third air guide pipe (16), and the third air guide pipe (16) is provided with a one-way air outlet valve.
9. The plasma welding apparatus for producing low-speed power battery casings according to claim 8, characterized in that, The bottom of the connecting shaft (21) is provided with a circular plate (13), and a cylindrical second (28) is provided at the bottom edge of the circular plate (13). An annular frame (19) is slidably provided on the outer wall of the cylindrical second (28), and the annular frame (19) is fixedly connected to the connecting rod (27).
10. The plasma welding apparatus for producing low-speed power battery casings according to claim 9, characterized in that, The air outlet of the air duct three (16) is provided with an air purifier (15), and the air purifier (15) is installed on the bottom surface of the workbench (1).