Welding-following rolling device for friction stir additive manufacturing

Abstract

The invention relates to the technical field of friction stir welding additive manufacturing, in particular to a friction stir additive manufacturing follow-welding rolling device which comprises a stirring head, a circular ring is movably connected to the circumferential surface of the stirring head, mounting frames are fixedly connected to the circumferential surface of the circular ring, and a connecting assembly and a rolling assembly are arranged at the lower end of the mounting frame located on the right side. The mounting frame is connected with the rolling assembly through the connecting assembly; a limiting assembly is arranged at the upper end of the connecting assembly and used for preventing the rolling assembly from being separated from the connecting assembly. Angle conversion mechanisms are arranged on the two sides of the upper end of the connecting assembly; and a self-adaptive assembly is arranged at the lower end of the right mounting frame. By arranging the rolling assembly, the additive materials can be continuously rolled in the friction stir additive material adding process, in this way, the quality of welding seams between the additive materials can be improved, the bonding strength of the materials can be improved, and equipment parameters do not need to be adjusted according to specific materials during friction stir additive material adding.

Description

Technical Field

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

[0002] Additive manufacturing technology is a technology that uses a method of gradually accumulating materials to manufacture solid parts. Stir friction welding uses a special form of stirring head to be inserted into the part of the workpiece to be welded and rotate it at high speed. The heat generated by the friction between the high-speed rotating welding tool and the workpiece is used to partially melt the material to be welded. 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 force of the welding tool, and forms a dense solid phase weld under the extrusion of the welding tool. Additive manufacturing technology based on stir friction welding has been widely concerned in the industry due to its low cost and fast manufacturing speed.

[0003] In the process of additive manufacturing, in order to improve the bonding strength of additive materials, the parameters of the friction stir additive equipment, such as rotation speed, feed speed and welding pressure, can be adjusted to optimize the weld and welding quality between additive materials. However, these improvement measures often need to be adjusted according to the specific materials, and there is a lack of a universal solution to improve the quality of additive products. Therefore, it is necessary to design a friction stir additive manufacturing welding rolling device. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a friction stir additive manufacturing welding and rolling device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a friction stir additive manufacturing welding and rolling device, comprising a stirring head, a circular ring is movably connected to the circumferential surface of the stirring head, a mounting frame is fixedly connected to the circumferential surface of the circular ring, two mounting frames are provided, and are symmetrically distributed on both sides of the stirring head, a connecting component and a rolling component are provided at the lower end of the mounting frame located on the right side, the mounting frame is connected to the rolling component through the connecting component, and the rolling component moves with the stirring head;

[0006] A limiting component is provided at the upper end of the connecting component, and the limiting component is used to prevent the rolling component from being separated from the connecting component;

[0007] Angle conversion mechanisms are provided on both sides of the upper end of the connecting assembly, and the angle conversion mechanisms are used to change the placement angles of the rolling wheels on both sides of the rolling assembly;

[0008] An adaptive component is arranged at the lower end of the mounting frame on the right side, and two groups of the adaptive components are arranged. The adaptive components are used to ensure that the rolling component is always in contact with the additive material.

[0009] The connecting assembly includes a bearing seat, a rotating shaft, a swing rod, a connecting seat, a fixed shaft and a connecting plate. The lower end of the mounting frame located on the right side is fixedly connected to the bearing seat. Four bearing seats are provided, and the front and rear bearing seats form a group. The bearing seat is rotatably connected to the rotating shaft, the circumferential surface of the rotating shaft is fixedly connected to the swing rod, the lower end of the swing rod is rotatably connected to the fixed shaft, the end of the fixed shaft away from the swing rod is fixedly connected to the connecting seat, and the lower end of the connecting seat is fixedly connected to the connecting plate.

[0010] The rolling assembly includes a first mounting frame, a first rolling wheel, a second mounting frame, a second rolling wheel and a hinge. The first mounting frame is provided at the lower end of the connecting plate, the first mounting frame is rotatably connected to the first rolling wheel, the front and rear sides of the first mounting frame are rotatably connected to the second mounting frame through hinges, and the second mounting frame is rotatably connected to the second rolling wheel.

[0011] The limiting assembly includes a fixed block, a circular groove, a limiting rod, a handle, a movable disk, a spring, a limiting hole and a connecting rod, the upper end of the connecting plate is fixedly connected to the fixed block, a circular groove is arranged inside the fixed block, a movable disk is slidably connected inside the circular groove, a limiting rod is fixedly connected inside the movable disk, the upper and lower ends of the limiting rod both pass through the fixed block and are slidably connected to the fixed block, the upper end of the limiting rod is fixedly connected to the handle, a spring is arranged on the circumferential surface of the limiting rod, one end of the spring is fixedly connected to the movable disk, and the other end of the spring is fixedly connected to the inner wall of the circular groove; the upper end of the first mounting frame is fixedly connected to the connecting rod, the upper end surface of the connecting rod is provided with a limiting hole, and the limiting hole cooperates with the limiting rod.

[0012] Both sides of the upper end of the connection plate are fixedly connected to the limiting grooves, the limiting strips are slidably connected inside the limiting grooves, and the limiting strips are fixedly connected to the connection rods.

[0013] The lower end surface of the connecting plate is provided with a plug-in slot, a plug-in block is plugged into the plug-in slot, and the plug-in block is fixedly connected to the first installation frame; the end surface of the plug-in block is in the shape of a dovetail groove.

[0014] The angle conversion mechanism includes an L-shaped rod, a sliding hole, a sliding rod, a cylinder and a connecting block. The cylinders are fixedly connected to both sides of the upper end of the connecting plate, the protruding end of the cylinder is fixedly connected to the connecting block, and the sliding rod is fixedly connected to the right side of the connecting block; the upper end of the second mounting frame is fixedly connected to the L-shaped rod, and a sliding hole is opened on the side end surface of the L-shaped rod. The sliding rod is located inside the sliding hole and is slidably connected to the sliding hole.

[0015] The adaptive component includes a fixed seat, an end cover and a torsion spring. The lower end of the mounting frame located on the right side is fixedly connected to the fixed seat. The interior of the fixed seat is in the shape of a hollow cylindrical tube. The inner wall of the fixed seat is fixedly connected to a torsion spring, and the torsion spring is fixedly connected to the rotating shaft; both ends of the interior of the fixed seat are fixedly connected to end covers, and the end covers are rotatably connected to the rotating shaft.

[0016] The upper end surface of the mounting frame is provided with a mounting hole, and two mounting holes are provided.

[0017] The present invention has the following beneficial effects:

[0018] 1. Compared with the prior art, the present device is provided with a rolling assembly. When the stirring head is performing stir friction additive work, as the stirring head moves, the rolling assembly is also driven to move. As the rolling assembly moves, the additive can be continuously rolled during the process of stir friction additive. This can improve the quality of the welds between the additives and the bonding strength of the materials. When performing stir friction additive, there is no need to adjust the equipment parameters according to the specific material. The quality of the additive product can be improved by only moving the rolling assembly with the stirring head.

[0019] 2. Compared with the prior art, the present device is provided with an L-shaped rod, a sliding hole, a sliding rod, a cylinder and a connecting block. When the second installation frame needs to be converted from a horizontal state to a vertical state, the cylinder extends out, and with the cooperation of the connecting block, the sliding rod can be driven to slide inside the sliding hole. As the sliding rod moves, when the sliding rod passes over the hinge, the second installation frame rotates downward under the action of gravity. At the same time, with the cooperation of the sliding hole and the sliding rod, it is convenient for the second installation frame to be converted from a horizontal state to a vertical state. When the second installation frame is in a vertical state, the side of the additive can be rolled under the action of the second rolling wheel, so that the side of the additive is not easy to collapse, which is beneficial to improving the quality of the product.

[0020] 3. Compared with the prior art, the present device is provided with a fixed seat, an end cover and a torsion spring. When in use, the rotating shaft rotates under the action of the torsion spring, and then the swing rod is driven to rotate downward, so that the first rolling wheel is always in contact with the additive surface. At the same time, under the action of the torsion spring, the contact pressure between the first rolling wheel and the additive surface can also be increased, which is beneficial to improve the bonding strength between the additive materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the overall first viewing angle of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the overall second viewing angle of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of part A in the middle;

[0024] Figure 4 It is a schematic diagram of the structure of the overall third viewing angle of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of part B;

[0026] Figure 6 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of part C in the middle;

[0028] Figure 8 For the present invention Figure 6 Enlarged view of part D in the middle;

[0029] Fig. 9 It is a structural schematic diagram of the rolling assembly of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the connecting plate of the present invention.

[0031] Legend: 1. Mixing head; 2. Circular ring; 3. Mounting frame; 301. Mounting hole; 4. Connecting assembly; 401. Bearing seat; 402. Rotating shaft; 403. Swinging rod; 404. Connecting seat; 405. Fixed shaft; 406. Connecting plate; 5. Adaptive assembly; 501. Fixed seat; 502. End cover; 503. Torsion spring; 6. Limiting assembly; 601. Fixed block; 602. Circular groove; 603. Limiting rod; 604. Handle; 605. Shifting assembly Moving plate; 606, spring; 607, limiting hole; 608, connecting rod; 7, angle conversion mechanism; 701, L-shaped rod; 702, sliding hole; 703, sliding rod; 704, cylinder; 705, connecting block; 8, rolling assembly; 801, first mounting frame; 802, first rolling wheel; 803, second mounting frame; 804, second rolling wheel; 805, hinge; 9, limiting strip; 10, plug-in block; 11, plug-in slot; 12, limiting slot. DETAILED DESCRIPTION

[0032] Reference Figure 1-10The present invention provides a friction stir additive manufacturing welding and rolling device, comprising a stirring head 1, a circular ring 2 is movably connected to the circumferential surface of the stirring head 1, a mounting frame 3 is fixedly connected to the circumferential surface of the circular ring 2, two mounting frames 3 are provided, and are symmetrically distributed on both sides of the stirring head 1, a connecting component 4 and a rolling component 8 are provided at the lower end of the mounting frame 3 located on the right side, the mounting frame 3 is connected to the rolling component 8 through the connecting component 4, and the rolling component 8 moves with the stirring head 1; a limiting component 6 is provided at the upper end of the connecting component 4, and the limiting component 6 is used to prevent the rolling component 8 from being separated from the connecting component 4; angle conversion mechanisms 7 are provided on both sides of the upper end of the connecting component 4, and the angle conversion mechanism 7 is used to change the placement angle of the rolling wheels on both sides of the rolling component 8; an adaptive component 5 is provided at the lower end of the mounting frame 3 located on the right side, and two groups of adaptive components 5 are provided, and the adaptive component 5 is used to make the rolling component 8 always in contact with the additive.

[0033] When in use, the stirring head 1 is passed through the ring 2, and the mounting frame 3 is installed on the additive end of the stir friction additive equipment, and then the rolling component 8 is installed on the connecting component 4 using the limiting component 6, so that as the stirring head 1 moves, the rolling component 8 can be driven to move, and as the rolling component 8 moves, the additive can be continuously rolled during the stir friction additive process, so that the quality of the welds between the additives and the bonding strength of the materials can be improved, so that when performing stir friction additive, there is no need to adjust the parameters of the equipment according to the specific material, and the quality of the additive product can be improved by only moving the rolling component 8 with the stirring head 1. At the same time, with the cooperation of the angle conversion mechanism 7, the rolling wheels on both sides can be in a vertical state, so that the side of the additive can be rolled, so that the side of the additive is not easy to collapse, which is beneficial to improving the quality of the product; in order to make the rolling component 8 always in contact with the surface of the additive, the cooperation of the adaptive component 5 makes it easier for the rolling component 8 to contact the surface of the additive.

[0034] The connecting assembly 4 includes a bearing seat 401, a rotating shaft 402, a swing rod 403, a connecting seat 404, a fixed shaft 405 and a connecting plate 406. The lower end of the mounting frame 3 on the right side is fixedly connected with a bearing seat 401. There are four bearing seats 401, and the front and rear bearing seats 401 form a group. The rotating shaft 402 is rotatably connected inside the bearing seat 401. The circumferential surface of the rotating shaft 402 is fixedly connected with a swing rod 403. The lower end of the swing rod 403 is rotatably connected with a fixed shaft 405. The end of the fixed shaft 405 away from the swing rod 403 is fixedly connected with a connecting seat 404. The lower end of the connecting seat 404 is fixedly connected with a connecting plate 406. During operation, since two swing rods 403 are provided on each side and the two swing rods 403 are parallel to each other, it is convenient for the rolling assembly 8 to always be parallel to the surface of the additive material, which is conducive to a smoother surface of the additive material.

[0035] The rolling assembly 8 includes a first mounting frame 801, a first rolling wheel 802, a second mounting frame 803, a second rolling wheel 804 and a hinge 805. The first mounting frame 801 is provided at the lower end of the connecting plate 406. The first rolling wheel 802 is rotatably connected inside the first mounting frame 801. The front and rear sides of the first mounting frame 801 are rotatably connected to the second mounting frame 803 through the hinge 805. The second rolling wheel 804 is rotatably connected inside the second mounting frame 803. When working, as the stirring head 1 moves, it can bring The first installation frame 801 is moved, and then the first rolling wheel 802 is driven to move. Under the action of the first rolling wheel 802, the surface of the additive material can be rolled. At the same time, the movement of the first installation frame 801 also drives the second installation frame 803 to move under the action of the hinge 805. When the second installation frame 803 is in a horizontal state, the second rolling wheel 804 rolls the surface of the additive material. When the second installation frame 803 is in a vertical state, the second rolling wheel 804 rolls the side of the additive material.

[0036] The limiting component 6 includes a fixed block 601, a circular groove 602, a limiting rod 603, a handle 604, a movable disk 605, a spring 606, a limiting hole 607 and a connecting rod 608. The upper end of the connecting plate 406 is fixedly connected to the fixed block 601, a circular groove 602 is arranged inside the fixed block 601, a movable disk 605 is slidably connected inside the circular groove 602, a limiting rod 603 is fixedly connected inside the movable disk 605, both upper and lower ends of the limiting rod 603 pass through the fixed block 601, and are slidably connected to the fixed block 601, the upper end of the limiting rod 603 is fixedly connected to the handle 604, a spring 606 is arranged on the circumferential surface of the limiting rod 603, one end of the spring 606 is fixedly connected to the movable disk 605, and the other end of the spring 606 is fixedly connected to the inner wall of the circular groove 602; the upper end of the first installation frame 801 is fixedly connected to the connecting rod 608, and the upper end surface of the connecting rod 608 is provided with a limiting hole 607, and the limiting hole 607 cooperates with the limiting rod 603. When working, when installing the rolling assembly 8, pulling the handle 604 upwards will drive the limiting rod 603 to be stored in the circular groove 602. At the same time, the upward movement of the limiting rod 603 will also compress the spring 606 with the cooperation of the movable plate 605, and the compressed spring 606 is conducive to the resetting of the limiting rod 603; after the limiting rod 603 is stored in the circular groove 602, the connecting rod 608 is installed to the lower end of the limiting rod 603, and the limiting rod 603 corresponds to the limiting hole 607, and then the handle 604 is released. Then, under the action of the compressed spring 606, the limiting rod 603 can be driven to reset, so that the limiting rod 603 is inserted into the limiting hole 607, thus realizing the limitation of the connecting rod 608, so that the rolling assembly 8 is installed on the connecting plate 406, effectively preventing the rolling assembly 8 from being separated from the connecting plate 406, making it more convenient and quick to install the rolling assembly 8, which is conducive to later replacement.

[0037] Both sides of the upper end of the connecting plate 406 are fixedly connected to the limiting groove 12, and the limiting strip 9 is slidably connected inside the limiting groove 12. The limiting strip 9 is fixedly connected to the connecting rod 608. When working, by setting the limiting groove 12 and the limiting strip 9, the installation position of the connecting rod 608 can be limited, thereby facilitating the correspondence between the limiting rod 603 and the limiting hole 607.

[0038] A plug-in groove 11 is provided on the lower end face of the connecting plate 406, and a plug-in block 10 is plugged into the plug-in groove 11, and the plug-in block 10 is fixedly connected to the first mounting frame 801; the end face of the plug-in block 10 is in the shape of a dovetail groove, and during operation, when the rolling assembly 8 is installed, the rolling assembly 8 can be initially connected to the connecting plate 406 with the cooperation of the plug-in block 10 and the plug-in groove 11, which is conducive to later fixation.

[0039] The angle conversion mechanism 7 includes an L-shaped rod 701, a sliding hole 702, a sliding rod 703, a cylinder 704 and a connecting block 705. The cylinder 704 is fixedly connected to both sides of the upper end of the connecting plate 406. The protruding end of the cylinder 704 is fixedly connected to the connecting block 705. The sliding rod 703 is fixedly connected to the right side of the connecting block 705. The upper end of the second installation frame 803 is fixedly connected to the L-shaped rod 701. The side end surface of the L-shaped rod 701 is provided with a sliding hole 702. The sliding rod 703 is located inside the sliding hole 702 and is slidably connected to the sliding hole 702. When working, when it is necessary to convert the second installation frame 803 from a horizontal state to a vertical state, the cylinder 704 During the extension work, the slide bar 703 can be driven to slide inside the slide hole 702 with the cooperation of the connecting block 705. As the slide bar 703 moves, when the slide bar 703 passes over the hinge 805, the second mounting frame 803 rotates downward under the action of gravity. At the same time, with the cooperation of the slide hole 702 and the slide bar 703, it is convenient for the second mounting frame 803 to be converted from a horizontal state to a vertical state. When the second mounting frame 803 is in a vertical state, the side of the additive can be rolled under the action of the second rolling wheel 804, so that the side of the additive is not easy to collapse, which is beneficial to improving the quality of the product.

[0040] The adaptive component 5 includes a fixed seat 501, an end cover 502 and a torsion spring 503. The lower end of the mounting frame 3 on the right side is fixedly connected to the fixed seat 501. The interior of the fixed seat 501 is in the shape of a hollow cylindrical tube. The inner wall of the fixed seat 501 is fixedly connected to the torsion spring 503, and the torsion spring 503 is fixedly connected to the rotating shaft 402; both ends of the interior of the fixed seat 501 are fixedly connected to the end covers 502, and the end covers 502 are rotatably connected to the rotating shaft 402. When working, under the action of the torsion spring 503, the rotating shaft 402 is rotated, and at this time, the swing rod 403 is driven to rotate downward, so that the first rolling wheel 802 is always in contact with the additive surface. At the same time, under the action of the torsion spring 503, the contact pressure between the first rolling wheel 802 and the additive surface can also be increased, which is beneficial to improve the bonding strength between the additive materials.

[0041] The upper end surface of the mounting frame 3 is provided with a mounting hole 301 , and two mounting holes 301 are provided. During operation, the mounting frame 3 can be conveniently fixed on the friction stir additive device by the mounting holes 301 .

[0042] Working principle: When in use, the stirring head 1 is passed through the ring 2, and the mounting frame 3 is installed on the additive end of the stir friction additive device, and then the handle 604 is pulled upward, which will drive the limiting rod 603 to be stored in the circular groove 602. At the same time, the upward movement of the limiting rod 603 also compresses the spring 606 with the cooperation of the moving plate 605, and the compressed spring 606 is conducive to the reset of the limiting rod 603; after the limiting rod 603 is stored in the circular groove 602, the connecting rod 608 is installed under the limiting rod 603. The limiting rod 603 is aligned with the limiting hole 607, and then the handle 604 is released. Then, the limiting rod 603 can be driven to reset under the action of the compression spring 606, so that the limiting rod 603 is inserted into the limiting hole 607, so that the connection rod 608 is limited, so that the rolling assembly 8 is installed on the connecting plate 406. After the rolling assembly 8 is installed, the first installation frame 801 can be driven to move with the movement of the mixing head 1, and then the first rolling wheel 802 can be driven to move. The first rolling wheel 802 can roll the surface of the additive material under the action of the first rolling wheel 802. At the same time, the movement of the first mounting frame 801 also drives the second mounting frame 803 to move under the action of the hinge 805. When the second mounting frame 803 is in a horizontal state, the second rolling wheel 804 also rolls the surface of the additive material. When the second mounting frame 803 needs to be converted from a horizontal state to a vertical state, the cylinder 704 extends out, and with the cooperation of the connecting block 705, the sliding rod 703 can be driven in the sliding hole 702. The second mounting frame 803 slides as the sliding rod 703 moves. When the sliding rod 703 passes over the hinge 805, the second mounting frame 803 rotates downward under the action of gravity. At the same time, with the cooperation of the sliding hole 702 and the sliding rod 703, it is convenient for the second mounting frame 803 to be converted from a horizontal state to a vertical state. When the second mounting frame 803 is in the vertical state, the side of the additive can be rolled under the action of the second rolling wheel 804, so that the side of the additive is not easy to collapse, which is beneficial to improving the quality of the product.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A friction stir additive manufacturing welding and rolling device, comprising a stirring head (1), characterized in that: The circumferential surface of the mixing head (1) is movably connected to a circular ring (2), and the circumferential surface of the circular ring (2) is fixedly connected to a mounting frame (3). Two mounting frames (3) are provided and are symmetrically distributed on both sides of the mixing head (1). A connecting component (4) and a rolling component (8) are provided at the lower end of the mounting frame (3) located on the right side. The mounting frame (3) is connected to the rolling component (8) via the connecting component (4), and the rolling component (8) moves together with the mixing head (1); A limiting component (6) is provided at the upper end of the connecting component (4), and the limiting component (6) is used to prevent the rolling component (8) from being separated from the connecting component (4); Angle conversion mechanisms (7) are provided on both sides of the upper end of the connecting assembly (4), and the angle conversion mechanisms (7) are used to change the placement angles of the rolling wheels on both sides of the rolling assembly (8); An adaptive component (5) is arranged at the lower end of the mounting frame (3) located on the right side. Two groups of the adaptive components (5) are arranged. The adaptive components (5) are used to ensure that the rolling component (8) is always in contact with the additive material.

2. A friction stir additive manufacturing welding and rolling device according to claim 1, characterized in that: The connecting assembly (4) comprises a bearing seat (401), a rotating shaft (402), a swing rod (403), a connecting seat (404), a fixed shaft (405) and a connecting plate (406). The lower end of the mounting frame (3) located on the right side is fixedly connected to the bearing seat (401). Four bearing seats (401) are provided, and the front and rear bearing seats (401) form a group. The bearing seat (401) is rotatably connected to the rotating shaft (402). The circumferential surface of the rotating shaft (402) is fixedly connected to the swing rod (403). The lower end of the swing rod (403) is rotatably connected to the fixed shaft (405). The end of the fixed shaft (405) away from the swing rod (403) is fixedly connected to the connecting seat (404). The lower end of the connecting seat (404) is fixedly connected to the connecting plate (406).

3. A friction stir additive manufacturing welding and rolling device according to claim 2, characterized in that: The rolling assembly (8) comprises a first mounting frame (801), a first rolling wheel (802), a second mounting frame (803), a second rolling wheel (804) and a hinge (805); the first mounting frame (801) is arranged at the lower end of the connecting plate (406); the first mounting frame (801) is rotatably connected to the first rolling wheel (802); the first mounting frame (801) is rotatably connected to the second mounting frame (803) at both the front and rear sides via hinges (805); the second mounting frame (803) is rotatably connected to the second rolling wheel (804) at the inside.

4. A friction stir additive manufacturing welding and rolling device according to claim 3, characterized in that: The limiting assembly (6) comprises a fixed block (601), a circular groove (602), a limiting rod (603), a handle (604), a movable plate (605), a spring (606), a limiting hole (607) and a connecting rod (608); the upper end of the connecting plate (406) is fixedly connected to the fixed block (601); a circular groove (602) is provided inside the fixed block (601); the movable plate (605) is slidably connected inside the circular groove (602); the limiting rod (603) is fixedly connected inside the movable plate (605); the limiting rod (603) is passed through the fixed block (601) at both the upper and lower ends. The limiting rod (603) is fixedly connected to the movable plate (605) and is slidably connected to the fixed block (601); the upper end of the limiting rod (603) is fixedly connected to a handle (604); the circumferential surface of the limiting rod (603) is provided with a spring (606); one end of the spring (606) is fixedly connected to the movable plate (605); the other end of the spring (606) is fixedly connected to the inner wall of the circular groove (602); the upper end of the first installation frame (801) is fixedly connected to a connecting rod (608); the upper end surface of the connecting rod (608) is provided with a limiting hole (607); the limiting hole (607) cooperates with the limiting rod (603).

5. The friction stir additive manufacturing welding and rolling device according to claim 4, characterized in that: Both sides of the upper end of the connection plate (406) are fixedly connected to the limiting groove (12), the limiting groove (12) is slidably connected to the limiting strip (9), and the limiting strip (9) is fixedly connected to the connection rod (608).

6. The friction stir additive manufacturing welding and rolling device according to claim 4, characterized in that: The lower end surface of the connection plate (406) is provided with a plug-in slot (11), a plug-in block (10) is plugged into the plug-in slot (11), and the plug-in block (10) is fixedly connected to the first installation frame (801); the end surface of the plug-in block (10) is in the shape of a dovetail groove.

7. The friction stir additive manufacturing welding and rolling device according to claim 4, characterized in that: The angle conversion mechanism (7) comprises an L-shaped rod (701), a sliding hole (702), a sliding rod (703), a cylinder (704) and a connecting block (705); both sides of the upper end of the connecting plate (406) are fixedly connected to the cylinder (704); the extended end of the cylinder (704) is fixedly connected to the connecting block (705); the right side of the connecting block (705) is fixedly connected to the sliding rod (703); the upper end of the second installation frame (803) is fixedly connected to the L-shaped rod (701); the side end surface of the L-shaped rod (701) is provided with a sliding hole (702); the sliding rod (703) is located inside the sliding hole (702) and is slidably connected to the sliding hole (702).

8. The friction stir additive manufacturing welding and rolling device according to claim 2, characterized in that: The adaptive component (5) comprises a fixed seat (501), an end cover (502) and a torsion spring (503); the lower end of the mounting frame (3) located on the right side is fixedly connected to the fixed seat (501); the interior of the fixed seat (501) is in the shape of a hollow cylindrical tube; the inner wall of the fixed seat (501) is fixedly connected to the torsion spring (503); the torsion spring (503) is fixedly connected to the rotating shaft (402); both ends of the interior of the fixed seat (501) are fixedly connected to the end covers (502); the end covers (502) are rotatably connected to the rotating shaft (402).

9. The friction stir additive manufacturing welding and rolling device according to claim 1, characterized in that: The upper end surface of the mounting frame (3) is provided with a mounting hole (301), and two mounting holes (301) are provided.

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