Friction welding machine for dissimilar metal welding

Abstract

The utility model relates to the technical field of friction welding, and discloses a friction welding machine for dissimilar metal welding, which comprises a machine tool, the left side of the top of the machine tool is fixedly connected with a rack, the inside of the rack is fixedly connected with a motor, the output end of the motor is fixedly connected with a turntable, and the middle of the top of the machine tool is slidably connected with a supporting block. A clamping tool is slidably connected to the position, close to the middle, of the supporting block, an air cylinder is fixedly connected to the position, close to the edge, of the clamping tool, the outer wall of the air cylinder is slidably connected with the inner wall of the supporting block, and the right side of the supporting block communicates with an air pipe. A workpiece is placed in the supporting block, the air cylinder is pushed to move inwards through the air pipe, the motor is started, the motor drives the rotary disc to rotate, and the effects that heat and certain plastic deformation are generated through mutual friction of contact surfaces, then rotation is stopped, and meanwhile upsetting pressure is applied to complete welding are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to friction welding technical field especially uses a kind of friction welding machine for dissimilar metal welding. BACKGROUND

[0002] Friction welding machine is an advanced equipment for dissimilar metal welding, its working principle is to use the heat generated by the mutual friction of the contact end face of welding piece to make the end face reach the thermoplastic state, and then rapidly upset to complete welding. In the process of dissimilar metal welding, such as welding aluminum and steel, friction welding machine can effectively overcome the welding difficulties caused by the physical and chemical performance differences of the two metals. Because in the friction process, a thin mixed layer will be formed at the contact interface of the two metals under pressure and relative motion. This mixed layer helps the diffusion and combination of different metal atoms, enabling dissimilar metals to be firmly connected together. Moreover, friction welding machine does not require filler material, which is an advantage for dissimilar metal welding, avoiding welding defects caused by poor compatibility of filler material with the two dissimilar metals. Friction welding machine has many significant advantages in dissimilar metal welding. First, it can achieve high welding quality, enabling the welded joint of dissimilar metals to have good strength and sealing performance.

[0003] After searching, Chinese patent publication No. CN214489391U discloses a kind of metal piece welding assembly for pneumatic electric welding machine, including electric welding machine body, the front of electric welding machine body is respectively fixedly connected with upper welding arm and lower welding arm, the front of upper welding arm is fixedly connected with hydraulic cylinder, the bottom of hydraulic cylinder is fixedly connected with upper welding seat. The metal piece welding assembly for pneumatic electric welding machine, by setting support plate, support plate supports and places welding article, so that it is more convenient to operate welding article during welding, by setting screw rod and extrusion block, rotating screw rod drives extrusion block to fix welding article, so as to prevent welding article from moving, by setting rubber pad, rubber pad prevents extrusion block from causing hard extrusion when fixing welding article, the anti-skid line on the surface of rubber pad increases the friction of rubber pad on welding article, prevents welding article from moving after being fixed, so as to facilitate the welding of welding article. Although the device can prevent welding article from moving after being fixed, it is convenient for welding article, it cannot solve the problem of generating heat and certain plastic deformation by mutual friction of contact surface, and applying upset pressure to complete welding at the same time. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a kind of friction welding machine for dissimilar metal welding, to improve the problem that contact surface cannot generate heat and certain plastic deformation by mutual friction in prior art, and apply upset pressure to complete welding at the same time.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of friction welding machine for dissimilar metal welding, including lathe, the top left side of the lathe is fixedly connected with rack, the inside of the rack is fixedly connected with motor, the output of the motor is fixedly connected with carousel, the top middle of the lathe is slidably connected with support block, the support block is slidably connected with clamping tool near the middle, the clamping tool is fixedly connected with cylinder near the edge, the outer wall of the cylinder is slidably connected with the inner wall of support block, the right side of the support block is communicated with air pipe, the left side of the air pipe is communicated with baffle two, the left side of baffle two is fixedly connected with fixed rod near the middle, the outer wall of the fixed rod is slidably connected with the inside of support block, the top of the lathe is provided with moving mechanism, and the moving mechanism is used to adjust distance.

[0006] Through the above technical scheme: the top left side of lathe is installed with rack by fixed connection, in the inside of rack, there is a motor fixed connection, the output of motor is fixedly connected with a carousel, in the top middle position of lathe, there is a support block slidably connected, so as to adjust position, the middle part of support block is slidably connected, so as to fix a clamping tool, the edge part of clamping tool is fixedly connected with a cylinder, the outer wall of cylinder is slidably connected with the inner wall of support block, to realize the telescopic action of cylinder, the right side of support block is communicated with an air pipe, the left side of air pipe is communicated with a baffle two, the left side of baffle two is fixedly connected with a fixed rod near the middle, the outer wall of fixed rod is slidably connected with the inside of support block, to adapt to different work requirements, the top of lathe is further provided with a moving mechanism, and the main function of the moving mechanism is to adjust distance, to ensure the accuracy and flexibility in processing.

[0007] As further description of the above technical scheme:

[0008] The moving mechanism includes slide rail, the bottom of the slide rail is fixedly connected with the top of the lathe near the middle, the left and right ends of the slide rail are fixedly connected with baffle one, a plurality of threaded holes are formed in the inside of the slide rail, the inner wall of the threaded hole is threadedly connected with bolt, the outer wall of the bolt is fixedly connected with fixed plate on the front side, the inside of the fixed plate is slidably connected with the top of the slide rail, a plurality of sliding grooves are formed in the bottom of the support block, and the inside of the sliding groove is slidably connected with the top of the slide rail.

[0009] Through the technical scheme, the moving mechanism comprises a sliding rail, the bottom of the sliding rail is fixedly connected to the top of the machine tool near the central position, in order to increase the stability of the structure, the left and right ends of the sliding rail are fixedly connected with the baffle one, in addition, a plurality of threaded holes are arranged in the sliding rail, the inner walls of the threaded holes are fixedly connected with the bolts in a threaded mode, in order to further strengthen the stability of the connection, the outer wall of the bolt is fixedly connected with the fixed plate, the inner part of the fixed plate is slidably connected with the top of the sliding rail, so as to ensure the flexible movement of the moving mechanism, meanwhile, a plurality of sliding grooves are arranged in the bottom of the supporting block, the inner parts of the sliding grooves are slidably connected with the top of the sliding rail, so that the supporting block can smoothly move on the sliding rail.

[0010] Further description of the technical scheme is as follows:

[0011] The top right side of the machine tool is fixedly connected with a side plate, the left side of the side plate is slidably connected with a top column, and the front side of the machine frame is fixedly connected with an operation screen.

[0012] Through the technical scheme, the top right side of the machine tool is connected with the side plate in a fixed connection mode, the side plate can slide in a specific direction, so as to facilitate the operator to adjust the position according to the needs, the left side of the side plate is slidably connected with the top column, thereby increasing the stability of the machine tool, in addition, the front side of the machine frame can also bear the operation screen, so that the operation of the machine tool is controlled.

[0013] Further description of the technical scheme is as follows:

[0014] The outer wall of the top column is slidably connected with a fixed ring one, and a circular groove one is arranged on the left side of the top column.

[0015] Through the technical scheme, a component, the fixed ring one, is slidably connected to the outer wall of the top column, in addition, a circular groove is arranged on the left side of the top column, which provides necessary space and guidance for the sliding of the component.

[0016] Further description of the technical scheme is as follows:

[0017] The bottom of the fixed ring one is fixedly connected with a connecting block, and the bottom of the connecting block is fixedly connected to the top right side of the machine tool near the middle.

[0018] Through the technical scheme, the bottom is fixedly connected with the connecting block, the bottom of the connecting block is fixedly connected to the top right side of the machine tool near the middle, so that a stable and firm connection between the machine tool and the connecting block is formed, thereby ensuring the stability and reliability of the whole device during operation, in addition, the connecting block is arranged on the top right side of the machine tool near the middle, so that the space can be effectively utilized, and the layout of the whole device is more compact and reasonable.

[0019] As a further description of the above technical solution:

[0020] The inner part of the rack is provided with a circular groove II, the inner part of the circular groove II is fixedly connected with the outer wall of the motor, and the right side of the motor is fixedly connected with a fixed ring II.

[0021] Through the above technical solution: the inner part of the rack is provided with a circular groove II, the shape of the groove II is perfectly matched with the outer wall of the motor, and the two are tightly combined through fixed connection, further, the right side of the motor is fixedly connected with a structure called a fixed ring, which not only plays a supporting and stabilizing role for the motor, but also its outer wall is tightly connected with the inner wall of the rack through fixed connection, ensuring the stability and durability of the whole device.

[0022] As a further description of the above technical solution:

[0023] The upper stop post is fixedly connected with the left upper end rear of the side plate at the other end.

[0024] Through the above technical solution: the right upper end rear of the rack is fixedly connected with an upper stop post, the upper stop post has specific functions and structural characteristics, and the other end of the upper stop post is fixedly connected with the left upper end rear of the side plate of the rack, which ensures that the upper stop post and the side plate have a stable structural relationship, thereby effectively preventing the lateral movement and inclination of the rack during use, and enhancing the stability and safety of the whole rack structure.

[0025] As a further description of the above technical solution:

[0026] The lower stop post is fixedly connected with the right lower end front of the side plate at the other end.

[0027] Through the above technical solution: the right lower end front of the rack is fixedly connected with a lower stop post, and the other end of the lower stop post is fixedly connected with the right lower end front of the side plate of the rack, so that the rack and the lower stop post form a stable structural relationship, ensuring the stability and durability of the whole rack.

[0028] The utility model has the advantages of:

[0029] 1. The utility model discloses a workpiece is placed in the inside of support block, at this time, the air pipe pushes the cylinder to move in the inside, at this time, the cylinder will push the clamping tool to move to the inside of support block, until the clamping tool clamps the workpiece tightly, and the fixed link will move to the inside on the support block, at this time, the jacks will workpiece and then, start the motor, at this time, the motor drives the rotating disc to rotate, at this time, the rotating disc will drive workpiece and then make its contact surface mutual friction generates heat and certain plastic deformation, realize the heat and certain plastic deformation that can be generated through the contact surface mutual friction, then stop rotating, and complete the role of welding while exerting the upsetting pressure.

[0030] 2. The utility model discloses when support block needs to move, at this time, the bolt is rotated and taken down, then moves support block, at this time, the sliding slot of support block lower extreme will move on the slide rail, when moving to the specified position, at this time, the bolt is rotated to the fixed plate, and is rotated into the threaded hole simultaneously, make can fix support block, and the both ends of slide rail have two baffle no. 1, prevent support block to move too much and cause to separate from the slide rail, realized when the distance of support block is too close and too far, can adjust the distance of support block through left and right movement. DRAWINGS

[0031] Figure 1 It is a front side perspective drawing of the friction welding machine for dissimilar metal welding that the utility model proposes;

[0032] Figure 2 It is a top view of the friction welding machine for dissimilar metal welding that the utility model proposes;

[0033] Figure 3 It is the slide rail partial structure split drawing of the friction welding machine for dissimilar metal welding that the utility model proposes;

[0034] Figure 4 It is the support block partial structure split drawing of the friction welding machine for dissimilar metal welding that the utility model proposes;

[0035] Figure 5 It is the frame partial structure split drawing of the friction welding machine for dissimilar metal welding that the utility model proposes;

[0036] Figure 6 It is the top column partial structure schematic diagram of the friction welding machine for dissimilar metal welding that the utility model proposes.

[0037] Legend:

[0038] 1, machine tool; 2, moving mechanism; 201, sliding rail; 202, threaded hole; 203, baffle one; 204, fixed plate; 205, bolt; 206, sliding groove; 3, rack; 4, motor; 5, rotating disc; 6, support block; 7, clamping tool; 8, air cylinder; 9, air pipe; 10, fixed rod; 11, baffle two; 12, side plate; 13, top column; 14, circular groove one; 15, fixed ring one; 16, connecting block; 17, circular groove two; 18, fixed ring two; 19, upper stop column; 20, operation screen; 21, lower stop column. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] Please refer to the drawings of the embodiments of the utility model Figure 4 , the drawings of the embodiments of the utility model Figure 5 and the drawings of the embodiments of the utility model Figure 6 , the utility model provides an embodiment: a friction welding machine for dissimilar metal welding, including machine tool 1, the top left side of machine tool 1 is fixedly connected with rack 3, the inside of rack 3 is fixedly connected with motor 4, which provides power source for the whole, the output end of motor 4 is fixedly connected with rotating disc 5, the top middle part of machine tool 1 is slidingly connected with support block 6, so that the whole connection is more stable, the middle part of support block 6 is slidingly connected with clamping tool 7, the edge of clamping tool 7 is fixedly connected with air cylinder 8, the outer wall of air cylinder 8 is slidingly connected with the inner wall of support block 6, so that air cylinder 8 can be pushed to move, the right side of support block 6 is communicated with air pipe 9, the left side of air pipe 9 is communicated with baffle two 11, which plays a shielding role, the left side of baffle two 11 is fixedly connected with fixed rod 10 near the middle, the outer wall of fixed rod 10 is slidingly connected with the inside of support block 6, which plays a fixed support role, the top of machine tool 1 is provided with moving mechanism 2, moving mechanism 2 is used to adjust the distance;

[0041] Specifically, the top left side of the machine tool 1 is provided with a rack 3 through fixed connection, and a motor 4 is fixedly connected in the rack 3, and the output end of the motor 4 is fixedly connected with a rotating disc 5. A supporting block 6 is slidingly connected to the middle of the top of the machine tool 1, so as to adjust the position. The middle part of the supporting block 6 is slidingly connected to fix a clamping tool 7. The edge part of the clamping tool 7 is fixedly connected with an air cylinder 8. The outer wall of the air cylinder 8 is slidingly connected with the inner wall of the supporting block 6, so as to realize the extension and retraction of the air cylinder 8. The right side of the supporting block 6 is communicated with a gas pipe 9, and the left side of the gas pipe 9 is communicated with a baffle 11. The middle part of the left side of the baffle 11 is fixedly connected with a fixed rod 10. The outer wall of the fixed rod 10 is slidingly connected with the inside of the supporting block 6, so as to adapt to different work requirements. The top of the machine tool 1 is also provided with a moving mechanism 2. The main function of the moving mechanism 2 is to adjust the distance to ensure the accuracy and flexibility in the processing.

[0042] Please refer to the accompanying Figure 1 , the accompanying Figure 2 and the accompanying Figure 3 , the moving mechanism 2 includes a slide rail 201, the bottom of the slide rail 201 is fixedly connected with the top of the machine tool 1 near the middle, and the left and right ends of the slide rail 201 are fixedly connected with baffles 203, which play a shielding role. A plurality of threaded holes 202 are formed in the inside of the slide rail 201, and the inner wall of the threaded hole 202 is threadedly connected with a bolt 205, so that the overall connection is more stable. The outer wall of the front side of the bolt 205 is fixedly connected with a fixed plate 204, and the inside of the fixed plate 204 is slidingly connected with the top of the slide rail 201, so that the overall fixation is more stable. A plurality of sliding grooves 206 are formed in the bottom of the supporting block 6, and the inside of the sliding groove 206 is slidingly connected with the top of the slide rail 201.

[0043] Specifically, the moving mechanism 2 includes a slide rail 201, the bottom of the slide rail 201 is fixedly connected with the top of the machine tool 1 near the center, and the left and right ends of the slide rail 201 are fixedly connected with baffles 203, which play a shielding role. A plurality of threaded holes 202 are formed in the inside of the slide rail 201, and the inner wall of the threaded hole 202 is threadedly connected with a bolt 205, so that the overall connection is more stable. The outer wall of the front side of the bolt 205 is fixedly connected with a fixed plate 204, and the inside of the fixed plate 204 is slidingly connected with the top of the slide rail 201, so that the overall fixation is more stable. A plurality of sliding grooves 206 are formed in the bottom of the supporting block 6, and the inside of the sliding groove 206 is slidingly connected with the top of the slide rail 201.

[0044] Please refer to the accompanying Figure 1 , the accompanying Figure 3 and the accompanying Figure 4A side plate 12 is fixedly connected to the top right side of the machine tool 1, and a top column 13 is slidably connected to the left side of the side plate 12 so as to hold the workpiece. An operation screen 20 is fixedly connected to the front side of the frame 3. A fixing ring 15 is slidably connected to the outer wall of the top column 13 so as to be operated. A circular groove 14 is opened on the left side of the top column 13. A connecting block 16 is fixedly connected to the bottom of the fixing ring 15. The bottom of the connecting block 16 is fixedly connected to the top right side of the machine tool 1 near the middle, so as to make the overall connection more stable.

[0045] Specifically, the top right side of the machine tool 1 is fixedly connected to the side plate 12. The side plate 12 can slide in a specific direction to allow the operator to adjust its position as needed. The left side of the side plate 12 is slidably connected to the top column 13, which increases the stability of the machine tool 1. In addition, the front part of the frame 3 can also support the operating screen 20 to control the operation of the machine tool 1. On the outer wall of the top column 13, there is a component fixing ring 15 that slides along its surface. In addition, a circular groove 14 is opened on the left side of the top column 13. This groove provides the necessary space and guidance for the sliding of the component fixing ring 15. The bottom of the fixing ring 15 is fixedly connected to the connecting block 16. The bottom of the connecting block 16 is fixedly connected to the top right side of the machine tool 1 near the middle, so that the fixing ring 15 and the machine tool 1 can form a stable and firm connection relationship, thereby ensuring the stability and reliability of the entire device during operation. In addition, placing the connecting block 16 on the top right side of the machine tool 1 near the middle can effectively utilize space, making the layout of the entire device more compact and reasonable.

[0046] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 The frame 3 has a circular groove 17 inside, which is fixedly connected to the outer wall of the motor 4. The right side of the motor 4 is fixedly connected to a fixing ring 18, which makes the overall connection more stable. The outer wall of the fixing ring 18 is fixedly connected to the inner wall of the frame 3. The upper right end of the frame 3 is fixedly connected to an upper stop post 19, which serves as a shield. The other end of the upper stop post 19 is fixedly connected to the upper left end of the side plate 12. The lower right end of the frame 3 is fixedly connected to a lower stop post 21. The other end of the lower stop post 21 is fixedly connected to the lower right end of the side plate 12, which makes the overall connection more stable.

[0047] Specific, the inside of the rack 3 is provided with a circular groove 17, the shape of the circular groove 17 and the outer wall of the motor 4 perfect fit, and through the fixed connection mode to combine the two closely together, further, the right side of the motor 4 is fixedly connected with a structure called fixed ring 18, this fixed ring 18 not only plays a supporting and stabilizing effect of the motor 4, but its outer wall is also closely connected with the inner wall of the rack 3 through the fixed connection mode, to ensure the stability and durability of the whole device, the upper end of the right side of the rack 3 is fixedly connected with an upper stop post 19, the upper stop post 19 has specific function and structure characteristics, the other end of the upper stop post 19 is fixedly connected with the left upper end of the side plate 12 of the rack 3, this connection mode ensures that the upper stop post 19 and the side plate 12 have a stable structure relationship, so as to effectively prevent the lateral movement and inclination of the rack 3 in the process of use, enhance the stability and safety of the whole structure of the rack 3, the lower end of the right side of the rack 3 is fixedly connected with a lower stop post 21, the other end of the lower stop post 21 is fixedly connected with the lower end of the right side of the side plate 12 of the rack 3, so that the rack 3 and the lower stop post 21 form a stable structure relationship, to ensure the stability and durability of the whole rack 3.

[0048] Working principle: first, the workpiece is placed in the inside of the support block 6, at this time the air cylinder 8 is pushed to move inside through the air pipe 9, at this time the air cylinder 8 will push the clamping tool 7 to move to the inside of the support block 6, until the clamping tool 7 tightly clamps the workpiece, at the same time the fixed rod 10 will move to the inside on the support block 6, at this time the workpiece is pushed by the top post 13, then start the motor 4, at this time the motor 4 drives the rotating disc 5 to rotate, at this time the rotating disc 5 will drive the workpiece to rotate, then make the contact surface friction each other to generate heat and certain plastic deformation, then when the welding is finished, the motor 4 is turned off, at this time the motor 4 drives the rotating disc 5 to stop, then the air cylinder 8 drives the clamping tool 7 to open outward along the support block 6, at the same time the top post 13 moves backward, then the workpiece can be taken down, which can generate heat and certain plastic deformation by friction between the contact surfaces, then stop rotating, at the same time apply the top forging pressure to complete the welding function;

[0049] When the support block 6 needs to move, at this time the bolt 205 is rotated and taken off, then the support block 6 is moved, at this time the sliding groove 206 at the lower end of the support block 6 will move on the slide rail 201, when it moves to the specified position, at this time the bolt 205 is rotated into the fixed plate 204, at the same time it is rotated into the threaded hole 202, so that the support block 6 can be fixed, at the same time the two ends of the slide rail 201 have two baffles 203, which prevent the support block 6 from moving too far and causing it to separate from the slide rail 201, which realizes the function of adjusting the distance of the support block 6 by moving left and right when the distance of the support block 6 is too close or too far.

[0050] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A friction welding machine for dissimilar metal welding, comprising a machine tool (1), characterized in that: The left side of the top of the machine tool (1) is fixedly connected with a rack (3), the inside of the rack (3) is fixedly connected with a motor (4), the output end of the motor (4) is fixedly connected with a rotating disc (5), the middle of the top of the machine tool (1) is slidably connected with a supporting block (6), the middle of the supporting block (6) is slidably connected with a clamping tool (7), the edge of the clamping tool (7) is fixedly connected with an air cylinder (8), the outer wall of the air cylinder (8) is slidably connected with the inner wall of the supporting block (6), the right side of the supporting block (6) is communicated with an air pipe (9), the left side of the air pipe (9) is communicated with a baffle two (11), the middle of the left side of the baffle two (11) is fixedly connected with a fixed rod (10), the outer wall of the fixed rod (10) is slidably connected with the inside of the supporting block (6), the top of the machine tool (1) is provided with a moving mechanism (2), and the moving mechanism (2) is used for adjusting the distance.

2. A friction welding machine for welding dissimilar metals as claimed in claim 1, wherein: The moving mechanism (2) comprises a sliding rail (201), the bottom of the sliding rail (201) is fixedly connected with the middle of the top of the machine tool (1), the left and right ends of the sliding rail (201) are fixedly connected with baffles (203), a plurality of threaded holes (202) are formed in the inside of the sliding rail (201), the inner wall of the threaded hole (202) is threadedly connected with a bolt (205), the outer wall of the front side of the bolt (205) is fixedly connected with a fixed plate (204), the inside of the fixed plate (204) is slidably connected with the top of the sliding rail (201), and a plurality of sliding grooves (206) are formed in the bottom of the supporting block (6). The inside of the sliding groove (206) is slidably connected with the top of the sliding rail (201).

3. The friction welding machine for dissimilar metal welding according to claim 1, characterized by: The right side of the top of the machine tool (1) is fixedly connected with a side plate (12), the left side of the side plate (12) is slidably connected with a top column (13), and the front side of the rack (3) is fixedly connected with an operation screen (20).

4. A friction welding machine for welding dissimilar metals as defined in claim 3, characterized in that: The outer wall of the top column (13) is slidably connected with a fixed ring one (15), and a circular groove one (14) is formed in the left side of the top column (13).

5. A friction welding machine for welding dissimilar metals as defined in claim 4, wherein: The bottom of the fixed ring one (15) is fixedly connected with a connecting block (16), and the bottom of the connecting block (16) is fixedly connected with the middle of the right side of the top of the machine tool (1).

6. A friction welding machine for welding dissimilar metals as defined in claim 1, wherein: A circular groove two (17) is formed in the inside of the rack (3), the inside of the circular groove two (17) is fixedly connected with the outer wall of the motor (4), the right side of the motor (4) is fixedly connected with a fixed ring two (18), and the outer wall of the fixed ring two (18) is fixedly connected with the inner wall of the rack (3).

7. The friction welding machine for dissimilar metal welding according to claim 1, characterized by: The upper end of the right side of the rack (3) is fixedly connected with an upper baffle column (19), and the other end of the upper baffle column (19) is fixedly connected with the upper end of the left side of the side plate (12).

8. The friction welding machine for dissimilar metal welding according to claim 1, characterized by: The lower end of the right side of the rack (3) is fixedly connected with a lower baffle column (21), and the other end of the lower baffle column (21) is fixedly connected with the lower end of the right side of the side plate (12).

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