Friction stir welding equipment for producing and manufacturing automobile parts

Abstract

The invention discloses friction stir welding equipment for automobile part production and manufacturing, and relates to the technical field of automobile part production and manufacturing. Friction stir welding equipment for production and manufacturing of automobile parts comprises a support mechanism, the support mechanism comprises a bottom plate, stand columns are fixedly connected to the two sides of the upper surface of the bottom plate correspondingly, a middle shaft assembly used for being connected with the automobile parts in a sleeving mode is jointly erected at the upper ends of the two stand columns, and a main welding mechanism used for friction stir welding is arranged in the middle of the upper surface of the bottom plate; the main welding mechanism comprises a welding assembly and a base assembly, the welding assembly comprises a first motor, the output end of the first motor is fixedly connected with a stirring needle, the middle of the stirring needle is movably sleeved with a first shoulder shaft, a first spring wound around the stirring needle is arranged between the first shoulder shaft and the fixed end of the first motor, and the upper end of the first spring is fixedly connected with the first shoulder shaft. Friction stir welding equipment for producing and manufacturing automobile parts can smoothly weld polygonal deep cavities and cylindrical deep cavities, and the application range is widened.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component production and manufacturing, in particular to a friction stir welding device for automobile component production and manufacturing. Background Art

[0002] Friction stir welding refers to the use of heat generated by the friction between the high-speed rotating welding tool and the workpiece to partially melt the welded material. When the welding tool moves forward along the welding interface, the plasticized material flows from the front to the back of the welding tool under the action of the rotating friction of the welding tool, and forms a dense solid phase weld under the extrusion of the welding tool. As a solid phase connection technology, friction stir welding was invented by the British Welding Institute in 1991. Compared with traditional fusion welding, friction stir welding does not require the addition of welding wire or protective gas. The welding process is pollution-free, smoke-free, and radiation-free. The residual stress of the welded joint is low. 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 publication number CN112025079A discloses a deep cavity friction stir welding device for automobile motors, including a friction stir welding structure for performing deep cavity welding on automobile motors and a deep cavity fixing structure for fixing the deep cavity of automobile motors 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 protruding cylinder is arranged on the welding seat, the output end of the protruding cylinder is connected to a stirring motor, a stirring head is connected to the output shaft of the stirring motor, the output end of the protruding cylinder, the output end of the stirring motor and the stirring head are in the same straight line, and the stirring head is arranged along the radial direction of the rotating shaft and facing the welding seam; the present invention arranges a deep cavity fixing structure, and the friction stir welding structure is arranged on the deep cavity fixing structure. After the deep cavity fixing structure is fixed on the automobile motor, the friction stir welding structure is welded with the deep cavity fixing structure as a supporting point, and sufficient pressure can be applied to the welding seam to make the welding process proceed smoothly.

[0004] The above technical solution can only weld cylindrical deep cavities during deep cavity welding. When the shape of the cavity of an automobile part is polygonal, deep cavity welding using the above device requires real-time adjustment of the welding needle position, 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 the production of automobile parts to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a friction stir welding equipment for manufacturing automobile parts to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A friction stir welding equipment for manufacturing automobile parts, comprising a bracket mechanism, the bracket mechanism comprising a bottom plate, two sides of the upper surface of the bottom plate are respectively fixedly connected with columns, and the upper ends of the two columns are jointly provided with a central shaft assembly for sleeved automobile parts; A main welding mechanism for stir friction welding is provided in the middle of the upper surface of the bottom plate; First electric rails are respectively embedded on both sides of the middle portion of the upper surface of the bottom plate; The main welding mechanism includes a welding assembly and a base assembly; The welding assembly comprises a first motor, and a stirring needle is fixedly connected to the output end of the first motor; The middle part of the stirring needle is movably sleeved with a first shoulder shaft, a first spring wrapped around the stirring needle is arranged between the first shoulder shaft and the fixed end of 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; The upper end of the stirring needle is movably sleeved with a second shoulder shaft having a weld seam adaptation through a torsion spring, and one end of the second shoulder shaft is fixedly embedded with a magnetic part; The base assembly comprises a base fixedly connected to the bottom plate, the upper end of the base is fixedly connected to a second electric rail, the second electric rail is slidably plugged with an electric telescopic column, and the output end of the electric telescopic column is fixedly connected to a first motor; Clamping assemblies for fixing automobile parts are symmetrically arranged on both sides of the main welding mechanism.

[0007] As a preferred technical solution of the present invention, a slot is provided on the upper side of each of the pillars; The central axis assembly comprises a central axis, and two ends of the central axis are movably hinged with clamping columns adapted to clamping slots through torsion springs.

[0008] Each of the clamping assemblies comprises a base mechanism and a rotating wheel mechanism; The base mechanism comprises a second motor, the output end of the second motor is fixedly connected to a gear, the fixed end of the second motor is fixedly connected to an L-shaped sliding column, and the lower end of the sliding column is adapted to be slidably plugged into the first electric rail; A connecting plate is fixedly connected to the upper side of the fixed end of the second motor, and an annular ring rail is fixedly connected to the upper end of the connecting plate; The ring rail is sleeved on the central axis in a positive position.

[0009] 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; 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; The swivel is sleeved on the central axis in a positive position; 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.

[0010] The adapter card on the rotating wheel mechanism is equipped with a clamping mechanism; 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; 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; 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.

[0011] 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; 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; 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; 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.

[0012] Side foot assemblies for assisting in clamping automobile parts are movably connected on both sides of the sleeve shaft, and each of the side foot assemblies includes a second clamping plate identical to the first clamping plate, a second clamping column identical to the first clamping column is fixedly connected to one side of the second clamping plate, a small column is fixedly connected to the other side of the second clamping plate, and a sleeve adapted to one end of the sleeve shaft is fixedly connected to one end of the small column away from the second clamping plate; The ends of the sleeves of the two side foot assemblies that are close to each other are fitted together, and the ends of the sleeves of the two side foot assemblies that are away from each other are fixedly connected with a second spring, and the end of the second spring that is away from the sleeve is correspondingly fixedly connected to the side plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: A friction stir welding device for manufacturing automobile parts enables the automobile parts installed on both sides to be initially aligned through a central axis component, which is convenient for subsequent clamping through a clamping component and improves the convenience of device alignment.

[0014] A friction stir welding device for manufacturing automobile parts can adjust the clamping position of a clamping mechanism by screwing a connector in or out of a row of holes, thereby being able to adjust the shape of a deep cavity, thereby improving the adjustability of the device and the flexibility of use of the device, making it suitable for use in various situations.

[0015] A friction stir welding device for manufacturing automobile parts has two fitting components symmetrically arranged on a clamping mechanism, so that when clamping the automobile parts, the clamping force is uniform inside and outside, thereby effectively protecting automobile parts with thin thickness or low hardness and improving the protection performance of the device for automobile parts.

[0016] A friction stir welding device for manufacturing automobile parts. Under the action of a second spring, the second clamping column on the side foot assembly will also adhere to the surface of the automobile part. Through the mobility of the side foot assembly, the clamping range of the adhered assembly can be increased and the stability of the device clamping can be improved.

[0017] A friction stir welding device for the production of automobile parts. When the cylinder on one side is deflated and contracted, the cylinder on the other side can be inflated and extended, just matching the movement direction of the fitting components inside and outside the automobile parts, so that the automobile parts can be clamped quickly, improving the operating efficiency of the device.

[0018] A friction stir welding equipment for manufacturing automobile parts, wherein a first shoulder shaft is bonded to the automobile part from the outside of the weld, and a second shoulder shaft is bonded to the automobile part from the inside of the weld. By arranging the second shoulder shaft and the first shoulder shaft, the weld can be bonded from the inside and outside at the same time, thereby improving the quality of subsequent friction weld formation.

[0019] A friction stir welding device for manufacturing automobile parts drives a welding assembly to weld deep cavities in sections by sliding an electric telescopic column in a second electric rail. The device can smoothly weld both polygonal and cylindrical deep cavities, thereby increasing the application range of the device.

[0020] A friction stir welding device for manufacturing automobile parts can make a magnetic part face the magnet by placing an external attraction magnet on the automobile part, so that the second shoulder axis can restore the direction before entering the weld, so that the welding assembly can be smoothly removed from the final interface of the weld, thereby improving the reusability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the working state of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the support mechanism of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of point A; Figure 5 It is an enlarged schematic diagram of point A in FIG. B of the present invention; Figure 6 It is a schematic diagram of the position of the main welding mechanism of the present invention; Figure 7 It is a schematic diagram of the clamping assembly of the present invention; Figure 8 It is a schematic diagram of the base mechanism of the present invention; Fig. 9 It is a schematic diagram of the rotating wheel mechanism of the present invention; Fig.10 It is a schematic diagram of the clamping mechanism of the present invention; Fig.11 It is a schematic diagram of the side foot assembly of the present invention.

[0022] In the figure: 1. bracket mechanism; 101. bottom plate; 102. column; 103. slot; 104. middle axis; 105. column; 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 column; 304. connecting plate; 305. ring rail; 4. Rotating wheel mechanism; 401, rotating ring; 402, row of holes; 403, first connecting ring; 404, gear ring; 405, second connecting ring; 5, clamping mechanism; 501, 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 column; 509, clamping pad; 510, side plate; 511, cross bar; 512, sleeve shaft; 513, second clamping plate; 514, second clamping column; 515, small column; 516, sleeve; 517, second spring. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6A friction stir welding device for manufacturing automobile parts comprises a support mechanism 1, the support mechanism 1 comprises a bottom plate 101, two sides of the upper surface of the bottom plate 101 are respectively fixedly connected with columns 102, and the upper ends of the two columns 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; First power rails 106 are respectively embedded on both sides of the middle of the upper surface of the bottom plate 101; The main welding mechanism 2 includes a welding assembly and a base assembly; The welding assembly includes a first motor 201, and a stirring needle 202 is fixedly connected to the output end of the first motor 201; The middle part of the stirring needle 202 is movably sleeved with a first shoulder shaft 203, and a first spring 204 wrapped around the stirring needle 202 is arranged 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 having a weld seam adaptation through a torsion spring, and one end of the second shoulder shaft 205 is fixedly embedded with a magnetic part 206; The base assembly includes a base 207 fixedly connected to the bottom plate 101, the upper end of the base 207 is fixedly connected to the second electric rail 208, the second electric rail 208 is slidably plugged with an electric telescopic column 209, and the output end of the electric telescopic column 209 is fixedly connected to the first motor 201; Clamping assemblies for fixing automobile parts are symmetrically arranged on both sides of the main welding mechanism 2 .

[0025] See also Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8 , a slot 103 is provided on the upper side of each column 102; The central axis assembly comprises a central axis 104 , and two ends of the central axis 104 are movably hinged with clamping columns 105 adapted to be clamped in the clamping slots 103 through torsion springs.

[0026] Each clamping assembly includes a base mechanism 3 and a rotating wheel mechanism 4; The base mechanism 3 includes 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 on the central axis 104 in a positive position.

[0027] See also Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The rotating wheel mechanism 4 includes an annular rotating ring 401, and a row of holes 402 are evenly and equidistantly formed on the surface of the rotating ring 401; A first connecting ring 403 is fixedly mounted on one end surface of the rotating ring 401, and an annular gear ring 404 is provided on the side of the first connecting ring 403 away from the rotating ring 401, and a second connecting ring 405 is fixedly connected between the gear ring 404 and the first connecting ring 403; The swivel 401 is sleeved on the central shaft 104 in a positive position; The first connecting ring 403 is slidably inserted into the ring rail 305 , the second connecting ring 405 is in contact with the ring rail 305 , and the gear ring 404 is meshed with the gear 302 .

[0028] The adapter card on the rotating wheel mechanism 4 is equipped with a clamping mechanism 5; The clamping mechanism 5 comprises a U-shaped clamp 501, the clamp 501 is adapted to be plugged into the swivel 401, the end of the clamp 501 is fitted into 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 clamp 501; The side of the fixing clamp 501 facing the central axis 104 is fixedly connected with an air pump 503, and both ends of the surface of the air pump 503 are fixedly connected with air cylinders 504 respectively; The output end of the cylinder 504 near the inner end is fixedly connected to a straight first supporting plate 505 , and the output end of the cylinder 504 near the outer end is fixedly connected to a bent second supporting plate 506 .

[0029] The first support plate 505 and the second support plate 506 are symmetrically fixed to the opposite surfaces thereof; Each fitting assembly includes a first clamping plate 507, a first clamping column 508 of a column shape is fixedly connected to one side of the first clamping plate 507, a clamping pad 509 for fitting the automobile part is fixedly connected to the side of the first clamping column 508 away from the first clamping plate 507, and both the first clamping column 508 and the clamping pad 509 are made of rubber material; 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 cross bar 511 of the laminating assembly fixedly connected to the first support plate 505 is embedded in the first support plate 505 , and the cross bar 511 of the laminating assembly fixedly connected to the second support plate 506 is embedded in the second support plate 506 .

[0030] Side foot assemblies for assisting in clamping automobile parts are movably connected to both sides of the sleeve shaft 512, and each side foot assembly includes a second clamping plate 513 identical to the first clamping plate 507, a second clamping column 514 identical to the first clamping column 508 is fixedly connected to one side of the second clamping plate 513, a small column 515 is 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 is 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 fit together, and the ends of the sleeves 516 of the two side foot assemblies that are away from each other are fixedly connected to the second spring 517 , and the ends of the second spring 517 that are away from the sleeves 516 are correspondingly fixedly connected to the side plate 510 .

[0031] The working principle of the present invention is as follows: The central axis 104 and the clamping column 105 are movably hinged by a torsion spring. After the clamping column 105 is pulled out of the clamping slot 103, the two automobile parts to be welded are respectively inserted into the central axis assembly from both sides, and then the clamping column 105 is inserted into the clamping slot 103 and re-fixed. The automobile parts installed on both sides are initially aligned through the central axis assembly, which is convenient for subsequent clamping by the clamping assembly, thereby improving the convenience of device alignment.

[0032] The automobile parts on both sides are clamped from the opposite ends thereof, and a suitable number of clamping mechanisms 5 are selected according to the shape of the automobile parts and clamped on the swivel 401. The clamping position of the clamping mechanism 5 can be adjusted by screwing the connecting piece 502 in or out of the row hole 402, so that the shape of the deep cavity can be adjusted, thereby improving the adjustability of the device and the flexibility of use of the device, so that it can be adapted to various situations.

[0033] The automobile parts to be welded are inserted between the two symmetrical fitting components of the clamping mechanism 5. By symmetrically arranging the two fitting components on the clamping mechanism 5, when the automobile parts are clamped, the clamping force is uniform inside and outside, thereby effectively protecting automobile parts with thin thickness or low hardness, and improving the protection performance of the device for automobile parts.

[0034] By setting the side foot assemblies on both sides of the fitting assembly, after the first clamping column 508 and the clamping pad 509 are fitted in the clamping position, the second clamping column 514 on the side foot assembly will also fit to the surface of the automobile part under the action of the second spring 517, thereby increasing the clamping range of the fitting assembly and improving the clamping stability of the device through the mobility of the side foot assembly.

[0035] The fitting components on the inside and outside of the automobile parts are clamped by adjusting the cylinder 504 through the air pump 503, and the two cylinders 504 are connected through the air pump 503, so that when the cylinder 504 on one side is deflated and contracted, the cylinder 504 on the other side can be inflated and extended, just adapting to the movement direction of the fitting components on the inside and outside of the automobile parts, so that it can quickly clamp the automobile parts and improve the operating efficiency of the device.

[0036] After the automobile parts on both sides are clamped, the base mechanism 3 is slid along the first electric rail 106 to drive the automobile parts on both sides to align, and then the electric telescopic column 209 is started to extend, and the stirring needle 202 is inserted into the welds reserved for the automobile parts on both sides. The first shoulder shaft 203 fits the automobile part from the outside of the weld, and the second shoulder shaft 205 fits the automobile part from the inside of the weld. Through the arrangement of the second shoulder shaft 205 and the first shoulder shaft 203, the weld can be fitted from the inside and outside at the same time, thereby improving the quality of subsequent friction weld formation.

[0037] When the deep cavity of the automobile part to be welded is cylindrical, the welding machine assembly is inserted into the weld, and the second motor 301 is started to drive the gear 302 to rotate, and the gear ring 404 is rotated through meshing, and then the automobile part is clamped and driven to rotate by the clamping mechanism 5 on the rotating ring 401, so that the automobile part can be smoothly welded by the welding assembly. When the deep cavity of the automobile 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 welding assembly is driven to weld the deep cavity in sections by sliding the electric telescopic column 209 in the second electric rail 208. The device can smoothly weld both polygonal and cylindrical deep cavities, thereby improving the scope of use of the device.

[0038] A magnetic part 206 is embedded on the second shoulder shaft 205. After the second shoulder shaft 205 enters the deep cavity, it rotates along with the second shoulder shaft 205 driven by the rotation of the stirring needle 202. When the welding assembly needs to be removed, the magnetic part 206 can be directed toward the magnet by attaching an external attraction magnet to the automobile part. In this way, the second shoulder shaft 205 can restore its orientation before entering the weld, so that the welding assembly can be smoothly removed from the final interface of the weld, thereby improving the reusability of the device.

[0039] 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. 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) having a weld seam adaptation 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).

2. The friction stir welding equipment for manufacturing automobile parts according to claim 1, characterized in that: 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.

3. The friction stir welding equipment for manufacturing automobile parts according to claim 2, characterized in that: 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).

4. The friction stir welding equipment for manufacturing automobile parts according to claim 3, 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).

5. The friction stir welding equipment for manufacturing automobile parts according to claim 4, 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).

6. The friction stir welding equipment for manufacturing automobile parts according to claim 5, 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).

7. The friction stir welding equipment for manufacturing automobile parts according to claim 6, 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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