A friction stir welding equipment for manufacturing automotive parts

Abstract

The present invention discloses a friction stir welding equipment for the production and manufacturing of automotive components, which relates to the technical field of automotive component production and manufacturing. A friction stir welding equipment for the production and manufacturing of automotive components includes a support mechanism. The support mechanism includes a bottom plate. On both sides of the upper surface of the bottom plate, columns are respectively fixedly connected. At the upper ends of the two columns, a central axis assembly for sleeving automotive components is jointly erected. In the middle of the upper surface of the bottom plate, a main welding mechanism for friction stir welding is provided. The main welding mechanism includes a welding assembly and a base assembly. The welding assembly includes a first motor. The output end of the first motor is fixedly connected with a stirring pin. A first shoulder shaft is movably sleeved in the middle of the stirring pin. A first spring wound around the stirring pin is arranged between the fixed end of the first shoulder shaft and the first motor. The upper end of the first spring is fixedly connected to the first shoulder shaft. A friction stir welding equipment for the production and manufacturing of automotive components can smoothly weld both polygonal and cylindrical deep cavities, improving the scope of use.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile component production and manufacturing, and specifically relates to a friction stir welding equipment for automobile component production and manufacturing. Background Technique

[0002] Friction stir welding refers to the process of locally melting the materials to be welded by the heat generated from the friction between a high-speed rotating welding tool and the workpiece. When the welding tool moves forward along the welding interface, the plasticized materials flow from the front of the welding tool to the rear under the rotational friction force of the welding tool, and a dense solid-phase weld seam is formed under the extrusion of the welding tool. As a solid-phase connection technology, friction stir welding was invented by the Welding Institute of the United Kingdom in 1991. Compared with traditional fusion welding, friction stir welding does not require adding welding wires or protective gases, has no pollution, no smoke, no radiation during the welding process, and has low residual stress in the welded joints. Therefore, it has a series of advantages such as high welding efficiency, small welding deformation, low energy consumption, simple equipment, and safe welding process.

[0003] The patent with the publication number of CN112025079A discloses a friction stir welding device for deep cavities of automobile motors, including a friction stir welding structure for deep cavity welding of automobile motors and a deep cavity fixing structure for fixing the deep cavity of the automobile motor during welding; the friction stir welding structure includes a rotating shaft extending into the inner cavity of the automobile motor, a rotating sleeve is arranged on the outer periphery of the rotating shaft through a bearing, a welding seat is arranged on the rotating sleeve, a telescopic cylinder is arranged on the welding seat, the output end of the telescopic cylinder is connected with a stirring motor, the output shaft of the stirring motor is connected with a stirring head, the output end of the telescopic cylinder, the output end of the stirring motor and the stirring head are on the same straight line, and the stirring head is arranged along the radial direction of the rotating shaft and faces the welding seam; by setting the deep cavity fixing structure and arranging the friction stir welding structure on the deep cavity fixing structure, after the deep cavity fixing structure is fixed on the automobile motor, the friction stir welding structure takes the deep cavity fixing structure as a support point for welding, and sufficient pressure can be applied to the welding seam to ensure the smooth progress of the welding process.

[0004] The above technical solution can only weld cylindrical deep cavities during deep cavity welding. When the cavity shape of the automobile component is polygonal, real-time adjustment of the position of the welding needle is required to perform deep cavity welding using the above device, which seriously affects the welding smoothness and further affects the welding quality. Therefore, there is an urgent need for a friction stir welding equipment for automobile component production and manufacturing to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a friction stir welding equipment for automobile component production and manufacturing to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A friction stir welding equipment for manufacturing automotive parts, including a support mechanism, the support mechanism includes a bottom plate, both sides of the upper surface of the bottom plate are respectively fixedly connected with columns, and a central axis component for sleeving automotive parts is jointly erected at the upper ends of the two columns;

[0007] A main welding mechanism for friction stir welding is arranged in the middle of the upper surface of the bottom plate;

[0008] First electric rails are respectively embedded on both sides of the middle of the upper surface of the bottom plate;

[0009] The main welding mechanism includes a welding component and a base component;

[0010] The welding component includes a first motor, and a stirring needle is fixedly connected to the output end of the first motor;

[0011] The middle of the stirring needle is movably sleeved with a first shoulder shaft, and a first spring wound around the stirring needle is arranged between the fixed end of the first shoulder shaft and the first motor. The upper end of the first spring is fixedly connected to the first shoulder shaft, and the lower end of the first spring is fixedly connected to the stirring needle;

[0012] The upper end of the stirring needle is movably sleeved with a second shoulder shaft adapted to the weld seam through a torsion spring, and a magnetic part is fixedly embedded at one end of the second shoulder shaft;

[0013] The base component includes a base fixedly connected to the bottom plate. A second electric rail is fixedly connected to the upper end of the base. An electric telescopic column is slidably inserted into the second electric rail, and the output end of the electric telescopic column is fixedly connected to the first motor;

[0014] Clamping components for fixing automotive parts are symmetrically arranged on both sides of the main welding mechanism.

[0015] As a preferred technical solution of the present invention, a card slot is opened on the side of the upper end of each column;

[0016] The central axis component includes a central axis, and clamping columns adapted to be clamped in the card slots are movably hinged to both ends of the central axis through torsion springs.

[0017] Each clamping component includes a base mechanism and a runner mechanism;

[0018] The base mechanism includes a second motor, a gear is fixedly connected to the output end of the second motor, the fixed end of the second motor is fixedly connected with an L-shaped sliding column, and the lower end of the sliding column is slidably inserted into the first electric rail in a matching manner;

[0019] An adapter plate is fixedly connected to the upper side of the fixed end of the second motor, and an annular rail is fixedly connected to the upper end of the adapter plate;

[0020] The ring rail is sleeved on the central axis in a positive position.

[0021] As a preferred technical solution of the present invention, the rotating wheel mechanism comprises an annular rotating ring, and a row of holes are evenly and equidistantly formed on the surface of the rotating ring;

[0022] A first connecting ring is fixedly mounted on one end surface of the rotating ring, an annular gear ring is arranged on the side of the first connecting ring facing away from the rotating ring, and a second connecting ring is fixedly connected between the gear ring and the first connecting ring;

[0023] The swivel is sleeved on the central axis in a positive position;

[0024] The first connecting ring corresponds to the sliding plug-in ring rail, the second connecting ring fits the ring rail, and the gear ring meshes with the gear.

[0025] The adapter card on the rotating wheel mechanism is equipped with a clamping mechanism;

[0026] The clamping mechanism comprises a U-shaped clamp, the clamp is adapted to be plugged into a swivel, the end of the clamp is fitted into a first connecting ring, and a connector having a row of holes adapted to be screwed is inserted through the clamp;

[0027] An air pump is fixedly connected to one side of the fixing clamp facing the central axis, and both ends of the surface of the air pump are fixedly connected to air cylinders respectively;

[0028] The output end of the cylinder close to the inner end is fixedly connected with a straight first supporting plate, and the output end of the cylinder close to the outer end is fixedly connected with a bent second supporting plate.

[0029] As a preferred technical solution of the present invention, the first support plate and the second support plate are symmetrically fixed with fitting components on opposite surfaces thereof;

[0030] Each of the fitting components comprises a first clamping plate, one side of the first clamping plate is fixedly connected to a first clamping column in a columnar shape, and the side of the first clamping column facing away from the first clamping plate is fixedly connected to a clamping pad for fitting the automobile part;

[0031] The other two ends of the first clamping plate are respectively fixedly connected to side plates, and a cross bar and a sleeve shaft are fixedly connected between the two side plates;

[0032] The cross bar of the fitting assembly fixedly connected to the first support plate is embedded in the first support plate, and the cross bar of the fitting assembly fixedly connected to the second support plate is embedded in the second support plate.

[0033] On both sides of the sleeve shaft, there are movably connected side foot components for assisting in clamping automotive parts. Each side foot component includes a second clamping plate identical to the first clamping plate. On one side of the second clamping plate, there is a fixed connection of a second clamping column identical to the first clamping column. On the other side of the second clamping plate, there is a fixed connection of a small column, and at the end of the small column away from the second clamping plate, there is a fixed connection of a sleeve adapted to fit one end of the sleeve shaft.

[0034] The adjacent ends of the sleeves of the two side foot components are in contact. The opposite ends of the sleeves of the two side foot components are fixedly connected with a second spring, and the end of the second spring away from the sleeve is fixedly connected to the side plate correspondingly.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] (1) A friction stir welding equipment for manufacturing automotive parts enables the preliminary alignment of the automotive parts loaded on both sides through the central shaft assembly, facilitating subsequent clamping by the clamping assembly and improving the alignment convenience of the device.

[0037] (2) A friction stir welding equipment for manufacturing automotive parts adjusts the clamping position of the clamping mechanism by screwing the connecting piece into or out of the row of holes, so as to be able to adjust according to the shape of the deep cavity, improve the adjustability of the device, improve the use flexibility of the device, and make it suitable for various situations.

[0038] (3) A friction stir welding equipment for manufacturing automotive parts symmetrically arranges two fitting components on the clamping mechanism, so that when clamping the automotive parts, the clamping force is evenly distributed inside and outside, thus effectively protecting the automotive parts with a relatively thin thickness or low hardness and improving the protection performance of the device for automotive parts.

[0039] (4) A friction stir welding equipment for manufacturing automotive parts. Under the action of the second spring, the second clamping column on the side foot component will also fit to the surface of the automotive part. Thus, through the mobility of the side foot component, the clamping range of the fitting component can be increased, and the clamping stability of the device can be improved.

[0040] (5) A friction stir welding equipment for manufacturing automotive parts. When the cylinder on one side deflates and contracts, the cylinder on the other side can inflate and extend, exactly adapting to the movement direction of the fitting components on the inside and outside of the automotive part, enabling it to quickly clamp the automotive part and improving the operation efficiency of the device.

[0041] (6) A friction stir welding equipment for manufacturing automotive parts. The first shoulder shaft fits the automotive part from the outside of the weld, and the second shoulder shaft fits the automotive part from the inside of the weld. Through the arrangement of the second shoulder shaft and the first shoulder shaft, the weld can be fitted from both the inside and the outside simultaneously, improving the quality of the subsequent friction weld formation.

[0042] (7) A friction stir welding equipment for manufacturing automobile parts. By sliding an electric telescopic column in a second electric rail, the welding assembly is driven to weld the deep cavity in sections, enabling the device to weld both polygonal and cylindrical deep cavities smoothly, thus expanding the application range of the device.

[0043] A friction stir welding equipment for manufacturing automobile parts. By externally attracting a magnet to the automobile part, the magnetic part can be made to face the magnet, which can restore the orientation of the second shoulder shaft before entering the weld seam, enabling the welding assembly to smoothly move out from the final interface of the weld seam and improving the reusability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the working state of the present invention;

[0045] Figure 2 It is a schematic diagram of the structure of the present invention;

[0046] Figure 3 It is a schematic diagram of the bracket mechanism of the present invention;

[0047] Figure 4 It is of the present invention Figure 3 An enlarged schematic diagram of part A of the present invention;

[0048] Figure 5 It is of the present invention Figure 3 An enlarged schematic diagram of part B of the present invention;

[0049] Figure 6 It is a schematic diagram of the position of the main welding mechanism of the present invention;

[0050] Figure 7 It is a schematic diagram of the clamping assembly of the present invention;

[0051] Figure 8 It is a schematic diagram of the base mechanism of the present invention;

[0052] Figure 9 It is a schematic diagram of the runner mechanism of the present invention;

[0053] Figure 10 It is a schematic diagram of the clamping mechanism of the present invention;

[0054] Figure 11 It is a schematic diagram of the side foot assembly of the present invention.

[0055] In the figure: 1. Bracket mechanism; 101. Base plate; 102. Column; 103. Card slot; 104. Central axis; 105. Card post; 106. First electric rail; 2. Main welding mechanism; 201. First motor; 202. Stirring needle; 203. First shoulder shaft; 204. First spring; 205. Second shoulder shaft; 206. Magnetic part; 207. Base; 208. Second electric rail; 209. Electric telescopic column; 3. Base mechanism; 301. Second motor; 302. Gear; 303. Slide post; 304. Connecting plate; 305. Ring rail; 4. Runner mechanism; 401. Rotating ring; 402. Drain hole; 403. First connecting ring; 404. Tooth ring; 405. Second connecting ring; 5. Fixing and clamping mechanism; 501. Fixing and clamping; 502. Connecting piece; 503. Air pump; 504. Air cylinder; 505. First support plate; 506. Second support plate; 507. First clamping plate; 508. First clamping post; 509. Clamping pad; 510. Side plate; 511. Cross bar; 512. Sleeve shaft; 513. Second clamping plate; 514. Second clamping post; 515. Small post; 516. Sleeve; 517. Second spring. Detailed implementation mode

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0057] Embodiment: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , a friction stir welding equipment for manufacturing automobile parts, including a bracket mechanism 1, the bracket mechanism 1 includes a base plate 101, both sides of the upper surface of the base plate 101 are respectively fixedly connected with columns 102, and a central axis assembly for sleeving automobile parts is jointly installed at the upper ends of the two columns 102;

[0058] In the middle of the upper surface of the base plate 101, a main welding mechanism 2 for friction stir welding is arranged;

[0059] On both sides of the middle of the upper surface of the base plate 101, first electric rails 106 are respectively embedded;

[0060] The main welding mechanism 2 includes a welding component and a base component;

[0061] The welding component includes a first motor 201, and the output end of the first motor 201 is fixedly connected with a stirring needle 202;

[0062] The middle part of the stirring needle 202 is movably sleeved with a first shoulder shaft 203. A first spring 204 that winds around the stirring needle 202 is arranged between the fixed end of the first shoulder shaft 203 and the first motor 201. The upper end of the first spring 204 is fixedly connected to the first shoulder shaft 203, and the lower end of the first spring 204 is fixedly connected to the stirring needle 202;

[0063] The upper end of the stirring needle 202 is movably sleeved with a second shoulder shaft 205 adapted to the weld seam through a torsion spring. One end of the second shoulder shaft 205 is fixedly embedded with a magnetic part 206;

[0064] The base assembly includes a base 207 fixedly connected to the bottom plate 101. The upper end of the base 207 is fixedly connected with a second electric rail 208. An electric telescopic column 209 is slidably inserted into the second electric rail 208, and the output end of the electric telescopic column 209 is fixedly connected to the first motor 201;

[0065] Clamping assemblies for fixing automobile parts are symmetrically arranged on both sides of the main welding mechanism 2.

[0066] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8 , and a card slot 103 is formed on the upper edge side of each upright column 102;

[0067] The central axis assembly includes a central axis 104. Both ends of the central axis 104 are movably hinged with clamping posts 105 adapted to be clamped into the card slot 103 through torsion springs.

[0068] Each clamping assembly includes a base mechanism 3 and a runner mechanism 4;

[0069] The base mechanism 3 includes a second motor 301. The output end of the second motor 301 is fixedly connected with a gear 302. The fixed end of the second motor 301 is fixedly connected with an L-shaped sliding column 303. The lower end of the sliding column 303 is slidably inserted into the first electric rail 106 in a matching manner;

[0070] The upper side of the fixed end of the second motor 301 is fixedly connected with a connecting plate 304. The upper end of the connecting plate 304 is fixedly connected with an annular rail 305;

[0071] The annular rail 305 is correctly sleeved on the central axis 104.

[0072] Please refer to Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , and the runner mechanism 4 includes an annular rotating ring 401. The surface of the rotating ring 401 is evenly and equidistantly penetrated with row holes 402;

[0073] On one end face of the swivel ring 401, a first connecting ring 403 is fixedly clamped. On the side of the first connecting ring 403 facing away from the swivel ring 401, an annular toothed ring 404 is provided. A second connecting ring 405 is fixedly connected between the toothed ring 404 and the first connecting ring 403;

[0074] The swivel ring 401 is properly sleeved on the central shaft 104;

[0075] The first connecting ring 403 is correspondingly slidably inserted into the ring rail 305, the second connecting ring 405 is in contact with the ring rail 305, and the toothed ring 404 meshes with the gear 302.

[0076] A clamping mechanism 5 is adaptively clamped on the rotating wheel mechanism 4;

[0077] The clamping mechanism 5 includes a U-shaped clamp 501. The clamp 501 is adaptively inserted into the swivel ring 401. The end of the clamp 501 is in contact with the first connecting ring 403. A connecting member 502 adapted to be screwed into the row of holes 402 is inserted through the clamp 501;

[0078] On the side of the clamp 501 facing the central shaft 104, an air pump 503 is fixedly connected. At both ends of the surface of the air pump 503, air cylinders 504 are respectively and fixedly communicated;

[0079] The output end of the air cylinder 504 at the inner end is fixedly connected with a flat first support plate 505, and the output end of the air cylinder 504 at the outer end is fixedly connected with a bent second support plate 506.

[0080] On the opposite surfaces of the first support plate 505 and the second support plate 506, fitting components are symmetrically and fixedly connected respectively;

[0081] Each fitting component includes a first clamping plate 507. On one side of the first clamping plate 507, a cylindrical first clamping column 508 is fixedly connected. On the side of the first clamping column 508 facing away from the first clamping plate 507, a clamping pad 509 for fitting the automotive component is fixedly connected. Both the first clamping column 508 and the clamping pad 509 are made of rubber material;

[0082] On the other side of the first clamping plate 507, side plates 510 are respectively and fixedly connected at both ends. A cross bar 511 and a sleeve shaft 512 are fixedly connected between the two side plates 510;

[0083] The cross bar 511 of the fitting component fixedly connected to the first support plate 505 is embedded in the first support plate 505, and the cross bar 511 of the fitting component fixedly connected to the second support plate 506 is embedded in the second support plate 506.

[0084] On both sides of the sleeve shaft 512, there are edge foot components movably connected for assisting in clamping automotive components. Each edge foot component includes a second clamping plate 513 identical to the first clamping plate 507. On one side of the second clamping plate 513, there is a second clamping post 514 identical to the first clamping post 508 fixedly connected. On the other side of the second clamping plate 513, there is a small post 515 fixedly connected. At the end of the small post 515 far from the second clamping plate 513, there is a sleeve 516 adaptively mating with one end of the sleeve shaft 512.

[0085] The adjacent ends of the sleeves 516 of the two edge foot components are in contact. At the opposite ends of the sleeves 516 of the two edge foot components, there is a second spring 517 fixedly connected. The end of the second spring 517 far from the sleeve 516 is fixedly connected to the side plate 510 correspondingly.

[0086] The working principle of the present invention is as follows:

[0087] The central shaft 104 and the clamping post 105 are movably hinged through a torsion spring. After pulling out the clamping post 105 from the clamping groove 103, the two automotive components to be welded are respectively sleeved into the central shaft assembly from both sides. Subsequently, the clamping post 105 is inserted into the clamping groove 103 again for fixation. Through the central shaft assembly, the automotive components loaded on both sides are initially aligned, facilitating subsequent clamping by the clamping assembly and improving the alignment convenience of the device.

[0088] Clamp the automotive components from the opposite ends on both sides respectively. Select an appropriate number of clamping mechanisms 5 according to the shape of the automotive components and install them on the rotating ring 401. The clamping position of the clamping mechanism 5 can be adjusted by screwing the connecting piece 502 into or out of the row of holes 402, so as to be able to adjust according to the shape of the deep cavity, improve the adjustability of the device, improve the flexibility of use of the device, and make it adaptable to various situations.

[0089] Insert the automotive components to be welded between the two symmetrically arranged fitting components of the clamping mechanism 5. By symmetrically arranging two fitting components on the clamping mechanism 5, when clamping the automotive components, the clamping force is evenly distributed inside and outside, so as to effectively protect the automotive components with relatively thin thickness or low hardness and improve the protection performance of the device for automotive components.

[0090] Through the setting of the edge foot components on both sides of the fitting components, after the first clamping post 508 and the clamping pad 509 are in contact with the clamping position, under the action of the second spring 517, the second clamping post 514 on the edge foot component will also be in contact with the surface of the automotive component. Thus, through the mobility of the edge foot component, the clamping range of the fitting component can be increased, and the clamping stability of the device can be improved.

[0091] The fitting components on the inner and outer sides of the automotive parts are clamped by adjusting the cylinders 504 through the air pump 503, and the two cylinders 504 are connected through the air pump 503. Thus, when the cylinder 504 on one side deflates and contracts, the cylinder 504 on the other side can inflate and extend, exactly adapting to the movement direction of the fitting components on the inner and outer sides of the automotive parts, enabling it to quickly clamp the automotive parts and improving the operation efficiency of the device.

[0092] After clamping the automotive parts on both sides, the base mechanism 3 slides along the first electric rail 106 to align the automotive parts on both sides. Subsequently, the electric telescopic column 209 is activated to extend, inserting the stirring needle 202 into the reserved weld seams of the automotive parts on both sides. The first shoulder shaft 203 fits against the automotive parts from the outside of the weld seam, and the second shoulder shaft 205 fits against the automotive parts from the inside of the weld seam. Through the settings of the second shoulder shaft 205 and the first shoulder shaft 203, it is possible to fit the weld seam from both the inside and the outside simultaneously, improving the quality of the subsequent friction weld seam formation.

[0093] When the deep cavity of the automotive part to be welded is cylindrical, the welding machine assembly is inserted into the weld seam, and the second motor 301 is activated to drive the gear 302 to rotate. Through the meshing action, the toothed ring 404 rotates, and then the clamping of the automotive part by the clamping mechanism 5 on the rotating ring 401 drives it to rotate, enabling smooth welding of the automotive part by the welding assembly. When the deep cavity of the automotive part to be welded is polygonal, the straight section of the polygonal deep cavity is rotated to a state parallel to the second electric rail 208, and the electric telescopic column 209 is slid within the second electric rail 208 to drive the welding assembly to weld the deep cavity in segments. The device can smoothly weld both polygonal and cylindrical deep cavities, expanding the application range of the device.

[0094] By embedding a magnetic part 206 on the second shoulder shaft 205, after the second shoulder shaft 205 enters the deep cavity, it rotates following the second shoulder shaft 205 driven by the rotation of the stirring needle 202. When the welding assembly needs to be removed, by attracting a magnet outside the automotive part, the magnetic part 206 can be made to face the magnet, enabling the second shoulder shaft 205 to return to its orientation before entering the weld seam, thus allowing the welding assembly to smoothly move out from the final interface of the weld seam and improving the reusability of the device.

[0095] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A friction stir welding device for manufacturing automobile parts, comprising a support mechanism (1), the support mechanism (1) comprising a base plate (101), two sides of the upper surface of the base plate (101) are respectively fixedly connected with upright posts (102), and the upper ends of the two upright posts (102) are jointly provided with a central shaft assembly for sleeved automobile parts; A main welding mechanism (2) for friction stir welding is provided in the middle of the upper surface of the bottom plate (101); Features: First power rails (106) are respectively embedded on both sides of the middle portion of the upper surface of the bottom plate (101); The main welding mechanism (2) comprises a welding assembly and a base assembly; The welding assembly comprises a first motor (201), and a stirring needle (202) is fixedly connected to the output end of the first motor (201); A first shoulder shaft (203) is movably sleeved in the middle of the stirring needle (202); a first spring (204) wound around the stirring needle (202) is provided between the first shoulder shaft (203) and the fixed end of the first motor (201); the upper end of the first spring (204) is fixedly connected to the first shoulder shaft (203), and the lower end of the first spring (204) is fixedly connected to the stirring needle (202); The upper end of the stirring needle (202) is movably sleeved with a second shoulder shaft (205) adapted to the weld seam via a torsion spring, and one end of the second shoulder shaft (205) is fixedly embedded with a magnetic part (206); The base assembly comprises a base (207) fixedly connected to the bottom plate (101); the upper end of the base (207) is fixedly connected to a second electric rail (208); the second electric rail (208) is slidably plugged with an electric telescopic column (209); the output end of the electric telescopic column (209) is fixedly connected to a first motor (201); Clamping assemblies for fixing automobile parts are symmetrically arranged on both sides of the main welding mechanism (2); A slot (103) is provided on the upper side of each of the upright posts (102); The central axis assembly comprises a central axis (104), and both ends of the central axis (104) are movably hinged with clamping columns (105) adapted to fit the clamping slots (103) via torsion springs; Each of the clamping assemblies comprises a base mechanism (3) and a rotating wheel mechanism (4); The base mechanism (3) comprises a second motor (301), the output end of the second motor (301) is fixedly connected to a gear (302), the fixed end of the second motor (301) is fixedly connected to an L-shaped sliding column (303), and the lower end of the sliding column (303) is adapted to be slidably plugged into the first electric rail (106); A connecting plate (304) is fixedly connected to the upper side of the fixed end of the second motor (301), and an annular ring rail (305) is fixedly connected to the upper end of the connecting plate (304); The annular rail (305) is sleeved in a symmetrical position with the central axis (104).

2. The friction stir welding equipment for manufacturing automobile parts according to claim 1, characterized in that: The rotating wheel mechanism (4) comprises an annular rotating ring (401), and a surface of the rotating ring (401) is evenly and equidistantly penetrated with rows of holes (402); A first connecting ring (403) is fixedly mounted on one end surface of the rotating ring (401); an annular toothed ring (404) is provided on the side of the first connecting ring (403) facing away from the rotating ring (401); and a second connecting ring (405) is fixedly connected between the toothed ring (404) and the first connecting ring (403); The rotating ring (401) is sleeved in a right position with the central shaft (104); The first connecting ring (403) corresponds to the sliding plug-in ring rail (305), the second connecting ring (405) fits the ring rail (305), and the gear ring (404) meshes with the gear (302).

3. The friction stir welding equipment for manufacturing automobile parts according to claim 2, characterized in that: The rotating wheel mechanism (4) is equipped with a clamping mechanism (5) on the adapter card; The fixing clamp mechanism (5) comprises a U-shaped fixing clamp (501), the fixing clamp (501) is adapted to be plugged into the swivel (401), the end of the fixing clamp (501) is in contact with the first connecting ring (403), and a connecting piece (502) adapted to be plugged into the threaded row of holes (402) is inserted through the fixing clamp (501); An air pump (503) is fixedly connected to one side of the fixing clamp (501) facing the central axis (104), and both ends of the surface of the air pump (503) are respectively fixedly connected to air cylinders (504); The output end of the cylinder (504) close to the inner end is fixedly connected to a straight first support plate (505), and the output end of the cylinder (504) close to the outer end is fixedly connected to a bent second support plate (506).

4. The friction stir welding equipment for manufacturing automobile parts according to claim 3, characterized in that: The first support plate (505) and the second support plate (506) are symmetrically fixedly connected to the opposite surfaces thereof; Each of the fitting components comprises a first clamping plate (507), one side of the first clamping plate (507) being fixedly connected to a first clamping column (508) in a columnar shape, and a clamping pad (509) for fitting an automobile component being fixedly connected to a side of the first clamping column (508) facing away from the first clamping plate (507); The other two ends of the first clamping plate (507) are respectively fixedly connected to side plates (510), and a cross bar (511) and a sleeve shaft (512) are fixedly connected between the two side plates (510); The crossbar (511) of the laminating assembly fixedly connected to the first support plate (505) is embedded in the first support plate (505), and the crossbar (511) of the laminating assembly fixedly connected to the second support plate (506) is embedded in the second support plate (506).

5. The friction stir welding equipment for manufacturing automobile parts according to claim 4, characterized in that: Side foot assemblies for assisting in clamping automobile parts are movably connected to both sides of the sleeve shaft (512), each of the side foot assemblies comprising a second clamping plate (513) identical to the first clamping plate (507), a second clamping column (514) identical to the first clamping column (508) being fixedly connected to one side of the second clamping plate (513), a small column (515) being fixedly connected to the other side of the second clamping plate (513), and a sleeve (516) adapted to one end of the sleeve shaft (512) being fixedly connected to one end of the small column (515) away from the second clamping plate (513); The ends of the sleeves (516) of the two side foot assemblies that are close to each other are fitted together, and the ends of the sleeves (516) of the two side foot assemblies that are away from each other are fixedly connected to a second spring (517), and the end of the second spring (517) that is away from the sleeve (516) is correspondingly fixedly connected to the side plate (510).

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