Friction stir welding tool

Abstract

The invention relates to the technical field of welding tools, in particular to a friction stir welding tool which comprises a connecting bottom plate, a tool disc is connected to the end face of the connecting bottom plate, adjustable fixing structures are connected to the connecting bottom plate and located on the periphery of the tool disc, and adjustable supporting structures are connected to the four corners of the bottom of the connecting bottom plate. A pneumatic edge pressing structure is connected to the position, located on one side of the tool disc, of the end face of the connecting bottom plate, the adjustable fixing structure comprises a driving motor, and the driving motor is connected to the side wall of the connecting bottom plate through a connecting base. Therefore, the driving motor in the adjustable fixing structure can be used for adjusting the fixing position of the product through the transmission structure, welding work of a welding tool on the initial fixing position of the product is facilitated, then the number of times of clamping the product is reduced, and the product welding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding tooling, and specifically to a friction stir welding tooling. Background Art

[0002] Friction stir welding uses frictional heat and plastic deformation heat as the welding heat source. A columnar or other shaped stirring pin with threads etc. extends into the part to be welded of the workpiece. Through the high-speed rotation of the stirring pin, it generates heat by frictional contact with the material of the welded workpiece, thereby raising the temperature of the connecting part material to the high-temperature plastic state. During the welding process, the rotating stirring head (mainly the shoulder) generates heat by frictional contact with the workpiece surface, causing strong plastic deformation of the material on the advancing side of the stirring head. As the stirring head moves, the high-temperature plastically deformed material undergoes plastic flow and flows into the cavity behind the stirring head, forming a complete weld seam under the axial pressure.

[0003] In the prior art, the fixing positions of friction stir welding tooling mostly adopt a fixed type, which is not convenient to change, resulting in difficulties in welding at the fixed positions of the product, and the need to replace the tooling multiple times. During welding, it is not very convenient to weld the product, affecting the welding efficiency of the product. At the same time, the tooling needs to be leveled before welding. When leveling the traditional tooling, workers need to insert pieces of paper at the four corners of the device for adjustment, making the adjustment of the device rather troublesome. When fixing the product, the existing work needs to be fixed by bolts, making it not very convenient to disassemble and assemble the product. To address the above problems, a friction stir welding tooling is required. Summary of the Invention

[0004] The purpose of the present invention is to provide a friction stir welding tooling to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A friction stir welding tooling, including a connecting base plate. A tooling plate is connected to the end surface of the connecting base plate. Around the tooling plate on the connecting base plate, there is an adjustable fixing structure capable of adjusting the fixing position of the product. At the four corners of the bottom of the connecting base plate, there is an adjustable support structure for leveling. On the end surface of the connecting base plate and on one side of the tooling plate, there is a pneumatic pressing structure for quickly positioning the product.

[0006] As a preferred solution of the present invention, the adjustable fixing structure includes a driving motor, which is connected to the side wall of the connecting bottom plate through a connecting seat. The driving end of the driving motor is connected with a driving rod through a coupling. A driven bevel gear is meshed and connected to the side wall of the driving rod through a driving bevel gear. A rotating rod is connected to the center of the driven bevel gear. A rotating gear is connected to the side wall of the rotating rod. A moving rack is meshed and connected to the side wall of the rotating gear. A moving connecting rod is connected to the side wall of the moving rack. A limiting sliding sleeve is connected to the side wall of the moving connecting rod. The limiting sliding sleeve is connected to the bottom of the connecting bottom plate through a connecting plate. Multiple groups of connecting connecting rods are connected to the side wall of the moving connecting rod. The other end of the connecting connecting rod is connected with a connecting rotating shaft. A rotating connecting rod is correspondingly arranged at the other end of the connecting connecting rod and opposite to the connecting rotating shaft. A rotating rotating shaft is connected to the end face of the rotating connecting rod. The other end of the rotating connecting rod is connected with a connecting rotating shaft. A connecting slider is connected to the end face of the connecting rotating shaft through a connecting plate. A connecting sliding rail is connected to the connecting slider. The connecting sliding rail is connected to the bottom of the connecting bottom plate through a connecting plate. A pressing plate cylinder is connected to the end face of the connecting slider through a connecting plate.

[0007] As a preferred solution of the present invention, the adjustable support structure includes a fixed housing, which is connected to the four corners of the bottom of the connecting bottom plate. A rotating screw sleeve is connected to the side wall of the fixed housing. A shaft fixer is connected to the outer wall of the rotating screw sleeve on the side wall of the fixed housing. A rotating knob is connected to one end of the rotating screw sleeve. An adjusting screw rod is connected to the inner cavity of the rotating screw sleeve. The other end of the adjusting screw rod is connected with a connecting connecting plate. A connecting connecting shaft is connected to the side wall of the connecting connecting plate through a connecting plate. A rotating curved rod is connected to the side wall of the connecting connecting shaft. The other end of the rotating curved rod is connected with a connecting connecting shaft. A rotating bracket is connected to the side wall of the connecting connecting shaft. Rotating rotating rods are symmetrically connected to the side wall of the rotating bracket. A driving gear is connected to the rotating bracket. A driven gear is meshed and connected to the side wall of the driving gear. An connecting bracket is connected to the outer wall of the driven gear. Connecting rotating rods are symmetrically connected to the side wall of the connecting bracket. Rotating supporting rods are symmetrically connected to the bottoms of the rotating bracket and the connecting bracket. The other end of the rotating supporting rod is connected with a supporting connecting shaft. A supporting guide rail is connected to the supporting connecting shaft. A supporting plate is connected to the bottom of the supporting guide rail. Telescopic rods are symmetrically connected to the end face of the supporting plate. The end faces of the telescopic rods are connected to the side wall of the fixed housing through a connecting plate.

[0008] As a preferred embodiment of the present invention, the pneumatic blank-holding structure includes a connecting bracket, which is connected to the end face of the connecting bottom plate. A driving cylinder is connected in the connecting bracket. The driving end of the driving cylinder is connected with a wedge-shaped slider. A moving slide plate is connected to the side wall of the wedge-shaped slider. A limiting slide rail is provided on the end face of the connecting bracket corresponding to the moving slide plate. One end of the moving slide plate is connected with a positioning pressing plate. A limiting top plate is provided on the end face of the limiting slide rail corresponding to the wedge-shaped slider. Buffer pads are provided between the limiting slide rail and the limiting top plate and between the moving slide plate and the positioning pressing plate.

[0009] The driving motor is connected to the controller through a wire and the connection method is electrical connection. The driving rod is connected to the side wall of the connecting bottom plate through a bearing seat, and the connection method between the driving rod and the bearing seat is rotational connection. The rotating rod is connected to the bottom of the connecting bottom plate through a bearing seat, and the connection method between the rotating rod and the bearing seat is rotational connection.

[0010] As a preferred embodiment of the present invention, an engagement groove is provided on the limiting sliding sleeve corresponding to the moving connecting rod, and the connection method between the moving connecting rod and the engagement groove is sliding connection. A sliding groove is provided on the rotating connecting rod corresponding to the engagement rotating shaft, and the connection method between the engagement rotating shaft and the sliding groove is sliding connection.

[0011] The rotating rotating shaft is connected to the bottom of the connecting bottom plate through a bearing seat, and the connection method between the rotating rotating shaft and the bearing seat is rotational connection. A sliding groove is provided on the rotating connecting rod corresponding to the connecting rotating shaft, and the connection method between the connecting rotating shaft and the sliding groove is sliding connection. A sliding groove is provided on the connecting slider corresponding to the connecting slide rail, and the connection method between the connecting slide rail and the sliding groove is sliding connection.

[0012] As a preferred embodiment of the present invention, the driving end of the pressing plate cylinder is connected with a rotating pressing plate. The rotating screw sleeve is connected to the side wall of the fixed housing through a bearing seat, and the connection method between the rotating screw sleeve and the bearing seat is rotational connection.

[0013] The connection method between the rotating screw sleeve and the adjusting screw rod is threaded connection. A sliding groove is provided on the side wall of the fixed housing corresponding to the connecting link plate, and the connection method between the connecting link plate and the sliding groove is sliding connection. The connection method between the connecting link shaft and the rotating curved rod is rotational connection.

[0014] As a preferred embodiment of the present invention, the connection method between the rotating curved rod and the connecting link shaft is rotational connection. The rotating rotating rod is connected to the side wall of the fixed housing through a bearing seat, and the connection method between the rotating rotating rod and the bearing seat is rotational connection.

[0015] As a preferred embodiment of the present invention, the connecting and rotating rod is connected to the side wall of the fixed housing through a bearing block, wherein the connecting and rotating rod is rotatably connected to the bearing block. A sliding groove is correspondingly formed on the supporting guide rail and corresponding to the supporting connecting shaft, and the supporting connecting shaft is slidably connected to the sliding groove.

[0016] As a preferred embodiment of the present invention, on the contact surface between the wedge-shaped slider and the moving slide plate, sliding grooves that are mutually inclined and guiding are correspondingly formed, and the wedge-shaped slider is slidably connected to the moving slide plate.

[0017] As a preferred embodiment of the present invention, a sliding groove is correspondingly formed on the limiting slide rail and corresponding to the moving slide plate, and the moving slide plate is slidably connected to the sliding groove. A sliding groove is correspondingly formed on the limiting slide rail and corresponding to the wedge-shaped slider, and the wedge-shaped slider is slidably connected to the sliding groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, by providing an adjustable fixing structure in the friction stir welding tooling, the driving motor in the adjustable fixing structure can adjust the fixing position of the product through the transmission structure, facilitating the welding work of the welding tool at the initial fixing position of the product, thereby reducing the number of times the product is clamped and improving the welding efficiency of the product.

[0019] In the present invention, by providing an adjustable support structure in the friction stir welding tooling, manually rotating the rotating screw sleeve in the adjustable support structure can adjust the height of the support plate through the transmission structure, and then adjust the height of each foot of the entire device, enabling the entire device to be in a horizontal state and making it more convenient to level the device.

[0020] In the present invention, by providing a pneumatic edge pressing structure in the friction stir welding tooling, the driving cylinder in the pneumatic edge pressing structure can quickly position the product through the transmission structure, making it more convenient to clamp the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the friction stir welding tooling of the present invention; Figure 2 is a structural schematic diagram of the adjustable fixing structure of the present invention; Figure 3 is Figure 2 a partial structural schematic diagram of Figure 4 is Figure 3 a partial structural schematic diagram of Figure 5 is a structural schematic diagram of the adjustable support structure of the present invention; Figure 6 isFigure 5 Partial structural schematic diagram; Figure 7 Structural schematic diagram of the pneumatic blank-holding structure of the present invention; Figure 8 is Figure 7 Schematic diagram of the separated structure of the moving slide plate and the wedge-shaped slider in

[0022] In the figure: 1. Connecting bottom plate; 2. Tooling plate; 3. Adjustable fixing structure; 4. Adjustable supporting structure; 5. Pneumatic blank-holding structure; 301. Driving motor; 302. Driving rod; 303. Driving bevel gear; 304. Driven bevel gear; 305. Rotating rod; 306. Rotating gear; 307. Moving rack; 308. Moving connecting rod; 309. Limit sliding sleeve; 310. Connecting link; 311. Connecting rotating shaft; 312. Rotating connecting rod; 313. Rotating rotating shaft; 314. Connecting rotating shaft; 315. Connecting slider; 316. Connecting slide rail; 317. Pressing plate cylinder; 401. Fixed housing; 402. Rotating screw sleeve; 403. Shaft fixator; 404. Rotating knob; 405. Adjusting screw rod; 406. Connecting link plate; 407. Connecting link shaft; 408. Rotating curved rod; 409. Connecting link shaft; 410. Rotating bracket; 411. Rotating rod; 412. Driving gear; 413. Driven gear; 414. Connecting bracket; 415. Connecting rotating rod; 416. Rotating support rod; 417. Supporting link shaft; 418. Supporting guide rail; 419. Supporting plate; 420. Telescopic rod; 501. Connecting bracket; 502. Driving cylinder; 503. Wedge-shaped slider; 504. Moving slide plate; 505. Limit slide rail; 506. Positioning pressing plate; 507. Limit top plate; 508. Buffer pad. Detailed implementation manners

[0023] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. 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 efforts shall fall within the protection scope of the present invention.

[0024] For the embodiment, please refer to Figure 1-8 , the present invention provides a technical solution: A friction stir welding tooling includes a connecting bottom plate 1, a tooling plate 2 is connected to the end surface of the connecting bottom plate 1, an adjustable fixing structure 3 capable of adjusting the fixing position of the product is connected to the connecting bottom plate 1 and around the tooling plate 2, adjustable supporting structures 4 for leveling are connected to the four corners at the bottom of the connecting bottom plate 1, and a pneumatic blank-holding structure 5 for quickly positioning the product is connected to the end surface of the connecting bottom plate 1 and on one side of the tooling plate 2; In this embodiment, refer toFigure 1 , Figure 2 , Figure 3 and Figure 4 , the adjustable fixing structure 3 includes a driving motor 301, the driving motor 301 is connected to the side wall of the connecting bottom plate 1 through a connecting seat, the driving end of the driving motor 301 is connected with a driving rod 302 through a coupling, a driven bevel gear 304 is meshed and connected to the side wall of the driving rod 302 through a driving bevel gear 303, a rotating rod 305 is connected to the center of the driven bevel gear 304, a rotating gear 306 is connected to the side wall of the rotating rod 305, a moving rack 307 is meshed and connected to the side wall of the rotating gear 306, a moving connecting rod 308 is connected to the side wall of the moving rack 307, a limiting sliding sleeve 309 is connected to the side wall of the moving connecting rod 308, the limiting sliding sleeve 309 is connected to the bottom of the connecting bottom plate 1 through a connecting plate, multiple connecting link rods 310 are connected to the side wall of the moving connecting rod 308, the other end of the connecting link rod 310 is connected with a connecting rotating shaft 311, a rotating connecting rod 312 is correspondingly arranged at the other end of the connecting link rod 310 and opposite to the connecting rotating shaft 311, a rotating shaft 313 is connected to the end surface of the rotating connecting rod 312, a connecting rotating shaft 314 is connected to the other end of the rotating connecting rod 312, a connecting slider 315 is connected to the end surface of the connecting rotating shaft 314 through a connecting plate, a connecting sliding rail 316 is connected to the connecting slider 315, the connecting sliding rail 316 is connected to the bottom of the connecting bottom plate 1 through a connecting plate, and a pressing plate cylinder 317 is connected to the end surface of the connecting slider 315 through a connecting plate; Based on the above structure and the connection relationship of the above structure, when the driving motor 301 is controlled to operate by the controller, when the driving end of the driving motor 301 rotates, it drives the driving rod 302, the driving bevel gear 303, the driven bevel gear 304, the rotating rod 305 and the rotating gear 306 to rotate in sequence. When the rotating gear 306 rotates, it drives the moving rack 307, the moving connecting rod 308 and the connecting link rod 310 to move on the limiting sliding sleeve 309. When the connecting link rod 310 moves, it moves on the side wall of the connecting sliding rail 316 through the connecting rotating shaft 311, the rotating connecting rod 312, the rotating shaft 313, the connecting rotating shaft 314 and the connecting slider 315. When the connecting slider 315 moves on the side wall of the connecting sliding rail 316, it drives the pressing plate cylinder 317 to move on the side wall of the connecting sliding rail 316, so as to adjust the position where the pressing plate cylinder 317 fixes the product; Further, the driving motor 301 is connected to the controller through a wire and the connection method is electrical connection, and the operation of the driving motor 301 can be controlled by the controller; Further, the driving rod 302 is connected to the side wall of the connecting bottom plate 1 through a bearing seat, wherein the connection mode between the driving rod 302 and the bearing seat is a rotational connection. The rotating rod 305 is connected to the bottom of the connecting bottom plate 1 through a bearing seat, wherein the connection mode between the rotating rod 305 and the bearing seat is a rotational connection. When the driving rod 302 rotates, it can drive the rotating rod 305 to rotate. An engagement groove is correspondingly formed on the limiting sliding sleeve 309 and corresponding to the moving connecting rod 308, wherein the connection mode between the moving connecting rod 308 and the engagement groove is a sliding connection. A sliding groove is correspondingly formed on the rotating connecting rod 312 and corresponding to the engagement rotating shaft 311, wherein the connection mode between the engagement rotating shaft 311 and the sliding groove is a sliding connection. The rotating shaft 313 is connected to the bottom of the connecting bottom plate 1 through a bearing seat, wherein the connection mode between the rotating shaft 313 and the bearing seat is a rotational connection. A sliding groove is correspondingly formed on the rotating connecting rod 312 and corresponding to the connecting rotating shaft 314, wherein the connection mode between the connecting rotating shaft 314 and the sliding groove is a sliding connection. A sliding groove is correspondingly formed on the connecting slider 315 and corresponding to the connecting sliding rail 316, wherein the connection mode between the connecting sliding rail 316 and the sliding groove is a sliding connection. The driving end of the pressing plate cylinder 317 is connected with a rotating pressing plate, which can drive the pressing plate cylinder 317 to move on the side wall of the connecting sliding rail 316; In this embodiment, refer to Figure 1 , Figure 5 and Figure 6 , the adjustable support structure 4 includes a fixed housing 401. The fixed housing 401 is connected to the four corners of the bottom of the connecting bottom plate 1. A rotating screw sleeve 402 is connected to the side wall of the fixed housing 401. A shaft fixator 403 is connected to the outer wall of the rotating screw sleeve 402 on the side wall of the fixed housing 401. One end of the rotating screw sleeve 402 is connected with a rotating knob 404. An adjusting screw rod 405 is connected to the inner cavity of the rotating screw sleeve 402. The other end of the adjusting screw rod 405 is connected with an engagement connecting plate 406. An engagement connecting shaft 407 is connected to the side wall of the engagement connecting plate 406 through a connecting plate. A rotating curved rod 408 is connected to the side wall of the engagement connecting shaft 407. The other end of the rotating curved rod 408 is connected with a connecting connecting shaft 409. A rotating bracket 410 is connected to the side wall of the connecting connecting shaft 409. Rotating rods 411 are symmetrically connected to the side wall of the rotating bracket 410. A driving gear 412 is connected to the rotating bracket 410. A driven gear 413 is meshed and connected to the side wall of the driving gear 412. An engagement bracket 414 is connected to the outer wall of the driven gear 413. Engagement rods 415 are symmetrically connected to the side wall of the engagement bracket 414. Rotating support rods 416 are symmetrically connected to the bottoms of the rotating bracket 410 and the engagement bracket 414. The other end of the rotating support rod 416 is connected with a support connecting shaft 417. A support guide rail 418 is connected to the support connecting shaft 417. A support plate 419 is connected to the bottom of the support guide rail 418. Telescopic rods 420 are symmetrically connected to the end face of the support plate 419. The end faces of the telescopic rods 420 are connected to the side wall of the fixed housing 401 through a connecting plate; Based on the above structure and the connection relationship of the above structure, by manually rotating the rotating sleeve 402, when the rotating sleeve 402 rotates, it drives the adjusting screw rod 405 and the connecting link plate 406 to move. When the connecting link plate 406 moves, through the connecting link shaft 407, the rotating curved rod 408, and the connecting link shaft 409, it drives the rotating bracket 410 and the driving gear 412 to rotate around the rotating rod 411. When the driving gear 412 rotates, it drives the driven gear 413 and the connecting bracket 414 to rotate around the connecting rod 415, thereby driving the two rotating support rods 416 and the supporting link shaft 417 to rotate in opposite directions, so as to adjust the height of the supporting plate 419, facilitating the leveling work of the entire device; Further, the rotating sleeve 402 is connected to the side wall of the fixed housing 401 through a bearing seat. The connection method between the rotating sleeve 402 and the bearing seat is a rotating connection, and the connection method between the rotating sleeve 402 and the adjusting screw rod 405 is a threaded connection. A sliding groove is correspondingly opened on the side wall of the fixed housing 401 and corresponding to the connecting link plate 406. The connection method between the connecting link plate 406 and the sliding groove is a sliding connection. The connection method between the connecting link shaft 407 and the rotating curved rod 408 is a rotating connection, and the connection method between the rotating curved rod 408 and the connecting link shaft 409 is a rotating connection. The rotating rod 411 is connected to the side wall of the fixed housing 401 through a bearing seat. The connection method between the rotating rod 411 and the bearing seat is a rotating connection. The connecting rod 415 is connected to the side wall of the fixed housing 401 through a bearing seat. The connection method between the connecting rod 415 and the bearing seat is a rotating connection. A sliding groove is correspondingly opened on the supporting guide rail 418 and corresponding to the supporting link shaft 417. The connection method between the supporting link shaft 417 and the sliding groove is a sliding connection. When the rotating sleeve 402 rotates, it can drive the supporting link shaft 417 to move on the supporting guide rail 418; In this embodiment, refer to Figure 1 、 Figure 7 and Figure 8 , the pneumatic blank holding structure 5 includes a connecting bracket 501. The connecting bracket 501 is connected to the end face of the connecting bottom plate 1. A driving cylinder 502 is connected in the connecting bracket 501. The driving end of the driving cylinder 502 is connected to a wedge-shaped slider 503. A moving slide plate 504 is connected to the side wall of the wedge-shaped slider 503. A limiting slide rail 505 is correspondingly arranged on the end face of the connecting bracket 501 and corresponding to the moving slide plate 504. One end of the moving slide plate 504 is connected to a positioning pressing plate 506. A limiting top plate 507 is correspondingly arranged on the end face of the limiting slide rail 505 and corresponding to the wedge-shaped slider 503. Buffer pads 508 are arranged between the limiting slide rail 505 and the limiting top plate 507 and between the moving slide plate 504 and the positioning pressing plate 506; Under the conditions of the above structure and the connection relationship of the above structure, the driving cylinder 502 is controlled by the controller to operate. When the driving end of the driving cylinder 502 moves upward, the wedge-shaped slider 503 is driven to move upward. When the wedge-shaped slider 503 moves upward, the moving slide plate 504 is driven to move in the limit slide rail 505, so that when the positioning pressure plate 506 is driven to move forward, the product is fixed. Further, on the contact surface between the wedge-shaped slider 503 and the moving slide plate 504, chutes that are inclined guides to each other are correspondingly provided. And the connection mode between the wedge-shaped slider 503 and the moving slide plate 504 is a sliding connection. On the limit slide rail 505, a chute is correspondingly provided with the moving slide plate 504. Among them, the connection mode between the moving slide plate 504 and the chute is a sliding connection. On the limit slide rail 505, a chute is correspondingly provided with the wedge-shaped slider 503. Among them, the connection mode between the wedge-shaped slider 503 and the chute is a sliding connection, which can drive the moving slide plate 504 to move forward.

[0025] The working process of the present invention: When using the friction stir welding tooling, first manually rotate the rotating sleeve 402. When the rotating sleeve 402 rotates, the adjusting screw rod 405 and the connecting link plate 406 are driven to move. When the connecting link plate 406 moves, through the connecting link shaft 407, the rotating curved rod 408, and the connecting link shaft 409, the rotating bracket 410 and the driving gear 412 are driven to rotate around the rotating rod 411. When the driving gear 412 rotates, the driven gear 413 and the connecting bracket 414 are driven to rotate around the connecting rod 415, so as to drive the two groups of rotating support rods 416 and the support connecting shaft 417 to rotate in opposite directions, thereby adjusting the height of the support plate 419, and then adjusting the height of each foot of the friction stir welding tooling, so that the whole device can be in a horizontal state. After that, the driving cylinder 502 is controlled by the controller to operate. When the driving end of the driving cylinder 502 moves upward, the wedge-shaped slider 503 is driven to move upward. When the wedge-shaped slider 503 moves upward, the moving slide plate 504 is driven to move in the limit slide rail 505, so that when the positioning pressure plate 506 is driven to move forward, the product is fixed, and then the welding work of the product is carried out. After welding, the controller is used to control the operation of the driving motor 301. When the driving end of the driving motor 301 rotates, it drives the driving rod 302, the driving bevel gear 303, the driven bevel gear 304, the rotating rod 305 and the rotating gear 306 to rotate in sequence. When the rotating gear 306 rotates, it drives the moving rack 307, the moving connecting rod 308 and the connecting link 310 to move on the limiting sliding sleeve 309. When the connecting link 310 moves, it moves along the side wall of the connecting slide rail 316 through the connecting rotating shaft 311, the rotating connecting rod 312, the rotating rotating shaft 313, the connecting rotating shaft 314 and the connecting slider 315. When the connecting slider 315 moves along the side wall of the connecting slide rail 316, it drives the pressing plate cylinder 317 to move along the side wall of the connecting slide rail 316, thereby changing the position where the pressing plate cylinder 317 fixes the product and facilitating the welding work of the welding tool at the initial fixed position of the product.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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 tool, comprising a connecting base plate (1), characterized in that: The end surface of the connecting base plate (1) is connected to a tooling plate (2); an adjustable fixing structure (3) capable of adjusting the fixed position of the product is connected to the connecting base plate (1) and is located around the tooling plate (2); the four corners of the bottom of the connecting base plate (1) are connected to an adjustable support structure (4) for leveling; and a pneumatic edge pressing structure (5) for quickly positioning the product is connected to the end surface of the connecting base plate (1) and is located on one side of the tooling plate (2).

2. A friction stir welding tool according to claim 1, characterized in that: The adjustable fixing structure (3) comprises a driving motor (301), the driving motor (301) being connected to the side wall of the connecting base plate (1) via a connecting seat, the driving end of the driving motor (301) being connected to a driving rod (302) via a coupling, the side wall of the driving rod (302) being meshedly connected to a driven bevel gear (304) via a driving bevel gear (303), the center of the driven bevel gear (304) being connected to a rotating rod (305), the side wall of the rotating rod (305) being connected to a rotating gear (306), the side wall of the rotating gear (306) being meshedly connected to a moving rack (307), the side wall of the moving rack (307) being connected to a moving connecting rod (308), the side wall of the moving connecting rod (308) being connected to a limiting sleeve (309), the limiting sleeve (309) being connected via a connecting plate At the bottom of the connecting base plate (1), a plurality of connecting links (310) are connected to the side wall of the moving connecting rod (308), the other end of the connecting link (310) is connected to a connecting shaft (311), the other end of the connecting link (310) is provided with a rotating link (312) corresponding to the connecting shaft (311), the end surface of the rotating link (312) is connected to a rotating shaft (313), the other end of the rotating link (312) is connected to a connecting shaft (314), the end surface of the connecting shaft (314) is connected to a connecting slider (315) via a connecting plate, the connecting slider (315) is connected to a connecting rail (316), the connecting rail (316) is connected to the bottom of the connecting base plate (1) via a connecting plate, and the end surface of the connecting slider (315) is connected to a pressing plate cylinder (317) via a connecting plate.

3. A friction stir welding tool according to claim 2, characterized in that: The adjustable support structure (4) comprises a fixed shell (401), the fixed shell (401) being connected to the four corners of the bottom of the connecting base plate (1), a rotating screw sleeve (402) being connected to the side wall of the fixed shell (401), a shaft fixer (403) being connected to the side wall of the fixed shell (401) and located on the outer wall of the rotating screw sleeve (402), a rotating knob (404) being connected to one end of the rotating screw sleeve (402), an adjusting screw rod (405) being connected to the inner cavity of the rotating screw sleeve (402), a connecting connecting plate (406) being connected to the other end of the adjusting screw rod (405), a connecting shaft (407) being connected to the side wall of the connecting connecting plate (406) via the connecting plate, a rotating bent rod (408) being connected to the side wall of the connecting shaft (407), a connecting shaft (409) being connected to the other end of the rotating bent rod (408), a connecting shaft (409) being connected to the side wall of the connecting shaft (409), a rotating bracket (410) being connected to the side wall of the connecting shaft (409), ), a rotating rod (411) is symmetrically connected to the side wall of the rotating bracket (410), a driving gear (412) is connected in the rotating bracket (410), a driven gear (413) is meshedly connected to the side wall of the driving gear (412), a connecting bracket (414) is connected to the outer wall of the driven gear (413), a connecting rod (415) is symmetrically connected to the side wall of the connecting bracket (414), a rotating support rod (416) is symmetrically connected to the bottom of the rotating bracket (410) and the connecting bracket (414), the other end of the rotating support rod (416) is connected to a supporting shaft (417), a supporting guide rail (418) is connected to the supporting shaft (417), a supporting plate (419) is connected to the bottom of the supporting guide rail (418), and a telescopic rod (420) is symmetrically connected to the end surface of the support plate (419), and the end surface of the telescopic rod (420) is connected to the side wall of the fixed housing (401) through a connecting plate.

4. A friction stir welding tool according to claim 3, characterized in that: The pneumatic edge pressing structure (5) comprises a connecting bracket (501), the connecting bracket (501) is connected to the end surface of the connecting bottom plate (1), a driving cylinder (502) is connected in the connecting bracket (501), a driving end of the driving cylinder (502) is connected to a wedge-shaped slider (503), a moving slider (504) is connected to the side wall of the wedge-shaped slider (503), a limiting slide rail (505) is arranged on the end surface of the connecting bracket (501) and corresponds to the moving slider (504), one end of the moving slider (504) is connected to a positioning plate (506), a limiting top plate (507) is arranged on the end surface of the limiting slide rail (505) and corresponds to the wedge-shaped slider (503), and a buffer pad (508) is arranged between the limiting slide rail (505) and the limiting top plate (507) and between the moving slider (504) and the positioning plate (506).

5. A friction stir welding tool according to claim 4, characterized in that: The driving motor (301) is connected to the controller via a wire and the connection is in an electrical connection manner; the driving rod (302) is connected to the side wall of the connecting base plate (1) via a bearing seat, wherein the driving rod (302) and the bearing seat are connected in a rotational manner; the rotating rod (305) is connected to the bottom of the connecting base plate (1) via the bearing seat, wherein the rotating rod (305) and the bearing seat are connected in a rotational manner; A connecting groove is formed on the limiting sliding sleeve (309) and corresponds to the moving connecting rod (308), wherein the moving connecting rod (308) and the connecting groove are connected in a sliding manner. A sliding groove is formed on the rotating connecting rod (312) and corresponds to the connecting rotating shaft (311), wherein the connecting rotating shaft (311) and the sliding groove are connected in a sliding manner.

6. A friction stir welding tool according to claim 4, characterized in that: The rotating shaft (313) is connected to the bottom of the connecting base plate (1) via a bearing seat, wherein the rotating shaft (313) and the bearing seat are connected in a rotating manner, a sliding groove is provided on the rotating connecting rod (312) and corresponds to the connecting shaft (314), wherein the connecting shaft (314) and the sliding groove are connected in a sliding manner, and a sliding groove is provided on the connecting slider (315) and corresponds to the connecting slide rail (316), wherein the connecting slide rail (316) and the sliding groove are connected in a sliding manner; The driving end of the pressure plate cylinder (317) is connected to a rotating pressure plate, and the rotating screw sleeve (402) is connected to the side wall of the fixed housing (401) via a bearing seat, wherein the rotating screw sleeve (402) and the bearing seat are connected in a rotating manner.

7. A friction stir welding tool according to claim 4, characterized in that: The rotating screw sleeve (402) and the adjusting screw rod (405) are connected by threaded connection, and a sliding groove is provided on the side wall of the fixed housing (401) and corresponds to the connecting plate (406), wherein the connecting plate (406) and the sliding groove are connected by sliding connection, and the connecting shaft (407) and the rotating curved rod (408) are connected by rotation connection; The rotating curved rod (408) is connected to the connecting shaft (409) in a rotating manner, and the rotating rotating rod (411) is connected to the side wall of the fixed housing (401) via a bearing seat, wherein the rotating rotating rod (411) is connected to the bearing seat in a rotating manner.

8. A friction stir welding tool according to claim 4, characterized in that: The connecting rotating rod (415) is connected to the side wall of the fixed housing (401) via a bearing seat, wherein the connecting rotating rod (415) and the bearing seat are connected in a rotational manner, and a slide groove is provided on the support guide rail (418) and corresponding to the support coupling (417), wherein the support coupling (417) and the slide groove are connected in a sliding manner.

9. A friction stir welding tool according to claim 4, characterized in that: The contact surfaces of the wedge-shaped sliding block (503) and the movable sliding block (504) are provided with corresponding sliding grooves which are inclined to guide each other, and the connection mode between the wedge-shaped sliding block (503) and the movable sliding block (504) is a sliding connection.

10. A friction stir welding tool according to claim 4, characterized in that: A slide groove is provided on the limiting slide rail (505) and corresponds to the movable slide plate (504), wherein the movable slide plate (504) is connected to the slide groove by sliding connection; a slide groove is provided on the limiting slide rail (505) and corresponds to the wedge-shaped slide block (503), wherein the wedge-shaped slide block (503) is connected to the slide groove by sliding connection.

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