Polymer diffusion welding equipment for steel-aluminum composite row

Abstract

This invention provides a polymer diffusion welding device for steel-aluminum composite bars, belonging to the field of welding equipment technology. It includes a machine body with a welding auxiliary assembly on one side. The welding auxiliary assembly consists of a fixing assembly and a feeding assembly. The feeding assembly includes a mounting plate fixedly connected to one side of the machine body. Multiple movable bolts are slidably connected to one side of the mounting plate, and a movable connecting plate is slidably connected to one side of the mounting plate on the outer side of the multiple movable bolts. This invention uses the welding auxiliary assembly to specifically fix and adapt multi-layer materials such as steel and aluminum, and can feed materials to the required dimensions, ensuring the neatness and welding accuracy of the welded metal materials. This results in a neat rectangular outline after welding, meeting the required welding length, thereby improving welding efficiency. Furthermore, this device has a low cost, meeting the demand for low-cost solutions.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a polymer diffusion welding device for steel-aluminum composite bars. Background Technology

[0002] Steel-aluminum composite bars are made of steel and aluminum, combining the advantages of both. The composite process typically utilizes polymer diffusion welding equipment. Polymer diffusion welding is a welding method that bonds polymer materials together through thermal diffusion. Its principle involves heating the polymer materials to be welded to a molten or softened state at high temperatures, causing the surface molecules to diffuse into each other and form a strong bond at the contact surface.

[0003] Currently, polymer diffusion welding equipment requires manual clamping and fixing of multiple layers of material to the welding end during welding. This method is inefficient, and manual feeding cannot accurately control the welding area. Some manufacturers use robotic arms to complete this operation, but this undoubtedly increases the cost of use significantly. Therefore, in order to address this problem, this application provides a polymer diffusion welding equipment for steel-aluminum composite bars to meet the requirements. Summary of the Invention

[0004] To address the technical problem that existing polymer diffusion welding equipment requires manual clamping and fixing of multiple layers of material to the welding end during welding, which is inefficient and makes it difficult to accurately control the welding area, some manufacturers use robotic arms to complete this operation, but this undoubtedly increases the cost of use significantly. This invention provides a polymer diffusion welding device for steel-aluminum composite bars.

[0005] The technical solutions provided by the embodiments of the present invention are as follows:

[0006] This invention provides a polymer diffusion welding device for steel-aluminum composite bars, comprising a machine body. A welding auxiliary assembly is disposed on one side of the machine body. The welding auxiliary assembly consists of a fixing assembly and a feeding assembly. The feeding assembly includes a mounting plate fixedly connected to one side of the machine body. Multiple movable bolts are slidably connected to one side of the mounting plate. A movable connecting plate is disposed on the outer side of the multiple movable bolts. The movable connecting plate is slidably connected to one side of the mounting plate. A cylindrical base is fixedly connected to the side of the movable connecting plate away from the mounting plate. An inner column is slidably connected to the inner side of the cylindrical base. An adjusting shaft is rotatably connected to the inner column of the cylindrical base, and the adjusting shaft is threadedly connected to the inner column. A sector-shaped base is fixedly connected to the top of the inner column, and a movable support is rotatably connected to the inner side of the sector-shaped base. A connecting base plate is fixedly connected to the top of the movable support. The fixing component is located on the top of the connecting base plate. Fixing bolts are rotatably connected to both sides of the fan-shaped base. Both fixing bolts are arranged in an abutment position with the movable support. A movable base plate is fixedly connected to the top of the connecting base plate. A fixing groove is opened on one side of the movable base plate. A supporting inclined plate is fixedly connected to one side of the inner column of the base. The end of the supporting inclined plate away from the inner column of the base is arranged in an arc shape. An elastic limiting block is provided at the bottom of the movable base plate. A scale plate column is fixedly connected to the inside of the movable base plate. A sliding sleeve block is slidably sleeved on the outside of the scale plate column. The sliding sleeve block is slidably connected to the inside of the movable base plate. A fastening bolt is provided inside the sliding sleeve block. A positioning block is fixedly connected to the bottom of the sliding sleeve block. The positioning block is slidably connected to the bottom of the movable base plate.

[0007] In a preferred embodiment, the fixing assembly includes a fixing base plate slidably connected to the inner side of the movable base plate, a base plate bolt fixedly connected to one side of the fixing base plate, the base plate bolt slidably connected to the inner side of the fixing groove, and limit posts fixedly connected to both ends of the fixing base plate, with a fixing pressure plate slidably connected to the outer side of the limit posts.

[0008] In a preferred embodiment, a limiting horizontal shaft is fixedly connected to one side of the fixed base plate, and an adjusting screw shaft is rotatably connected to the side of the fixed base plate away from the limiting horizontal shaft. Sliding bases are slidably connected to both sides of the fixed base plate. The sliding base on the side closer to the limiting horizontal shaft is slidably sleeved on the outside of the limiting horizontal shaft, and the sliding base on the side closer to the adjusting screw shaft is threadedly sleeved on the outside of the adjusting screw shaft.

[0009] In a preferred embodiment, vertical studs are fixedly connected to the top of the sliding bases on both sides, and movable pressure brackets are slidably connected to the outer side of the vertical studs. The movable pressure brackets are slidably connected to the outer side of the fixed pressure plate, and a fixing nut is threadedly connected to the outer side of the vertical studs.

[0010] In a preferred embodiment, a fixed side plate is fixedly connected to one side of the sliding base, an extension base plate is rotatably connected inside the fixed side plate, and a transmission component is fixedly connected to one side of the extension base plate.

[0011] In a preferred embodiment, a connecting column is fixedly connected to the bottom of the transmission component, a transmission connecting rod is rotatably connected to the bottom end of the connecting column, and a push-pull handle is fixedly connected to one side of the transmission connecting rod.

[0012] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following:

[0013] This invention, through the multi-directional adjustment of the feeding component, can fully adapt to different polymer diffusion welding equipment and different welding end faces. Its low installation difficulty and low operating cost make it easy to widely use. The angle adjustment of the movable substrate can ensure that the welding surface of the steel and aluminum materials is in an absolutely square outline during welding, thereby avoiding the problem of welding surface tilting caused by manual clamping welding, thus improving the accuracy and welding quality during actual welding.

[0014] The feeding distance of steel and aluminum materials is determined by the positioning block in the feeding component, so that the welding area of ​​steel and aluminum materials can meet the required welding size. This can replace the manual clamping welding method, greatly improve the welding accuracy, ensure the welding area meets the requirements, and guarantee the welding quality. The adjustable position of the positioning block can flexibly adjust the welding length of steel and aluminum materials as needed. The manual operation position is far away from the welding end face of the equipment body, thus ensuring the safety of the operator.

[0015] This invention, by setting up fixing components, can fix metal materials such as steel and aluminum on four sides, ensuring the neatness of the metal materials and making them have a neat rectangular outline after welding. The setting of the long dimensions of the fixing base plate and the fixing pressure plate, and the sliding setting of multiple fixing side plates can meet the needs of materials with different widths. Moreover, the fixing components are set to two, which can fix multiple nodes when the length of the metal material is long, ensuring the stability of the metal material.

[0016] By extending the base plate, the lowest horizontal plane of the steel-aluminum welding end can be limited. This allows the steel-aluminum material to be directly moved to the top of the welding end face of the equipment body during feeding. This avoids the situation where multi-layered materials such as steel and aluminum cannot be directly fed into the top of the lower end face of the equipment body due to their layered state before welding. This makes the operation more convenient for workers. After feeding the steel-aluminum material, pulling the push-pull handle can cause the extended base plate to flip and move towards the fixed base plate, thereby separating it from the lower end face of the equipment body, and then welding of the steel-aluminum material can be performed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of a polymer diffusion welding device used for steel-aluminum composite bars;

[0019] Figure 2 A schematic diagram of the side structure of a polymer diffusion welding device used for steel-aluminum composite bars;

[0020] Figure 3 for Figure 2 Enlarged view of the A-section structure;

[0021] Figure 4 A three-dimensional structural diagram of the welding auxiliary components;

[0022] Figure 5 This is a schematic diagram of the front structure of the welding auxiliary components;

[0023] Figure 6 for Figure 5 Enlarged view of the structure of section B;

[0024] Figure 7 for Figure 5 Enlarged view of the C-section structure;

[0025] Figure 8 A schematic diagram of the top structure of the fan-shaped base and the movable support;

[0026] Figure 9 This is a three-dimensional structural diagram of the fixed component.

[0027] The attached diagram is labeled as follows: 1. Mounting plate; 2. Movable bolt; 3. Movable connecting plate; 4. Cylindrical base; 5. Inner column of the base; 6. Adjusting shaft column; 7. Sector-shaped base; 8. Movable support; 9. Connecting base plate; 10. Fixing bolt; 11. Movable base plate; 12. Supporting inclined plate; 13. Elastic limiting block; 14. Scale plate column; 15. Sliding sleeve block; 16. Fastening bolt; 17. Positioning block; 18. Fixed base plate; 19. Limiting column; 20. Fixed pressure plate; 21. Limiting horizontal shaft; 22. Adjusting screw shaft; 23. Sliding base; 24. Vertical stud; 25. Movable pressure frame; 26. Fixing nut; 27. Fixed side plate; 28. Extending base plate; 29. ​​Transmission component; 30. Connecting column; 31. Transmission connecting rod; 32. Push-pull handle; 33. Equipment body; 34. Fixing groove; 35. Base plate bolt.

[0028] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0029] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0030] like Figures 1 to 9 As shown, an embodiment of the present invention provides a polymer diffusion welding device for steel-aluminum composite bars, including a device body 33, and a welding auxiliary component is provided on one side of the device body 33. The welding auxiliary component consists of a fixing component and a feeding component.

[0031] The feeding assembly includes a mounting plate 1 fixedly connected to one side of the equipment body 33. Two symmetrical sliding grooves are opened on one side of the mounting plate 1. The end faces of the two sliding grooves are T-shaped. The two ends of the two sliding grooves are respectively set to penetrate the top and bottom of the mounting plate 1. Two movable bolts 2 are slidably connected to the inner side of each sliding groove. The movable bolts 2 are composed of bolts and nuts. A movable connecting plate 3 is provided on the outer side of the multiple movable bolts 2. The movable connecting plate 3 is slidably connected to one side of the mounting plate 1. A cylindrical base 4 is fixedly connected to the side of the movable connecting plate 3 away from the mounting plate 1. An inner column 5 is slidably connected to the inner side of the cylindrical base 4. An adjusting shaft 6 is rotatably connected to the inside of the cylindrical base 4. The adjusting shaft 6 and the inner column 5 are threadedly connected.

[0032] A fan-shaped base 7 is fixedly connected to the top of the inner column 5 of the base. The two ends of the fan-shaped base 7 are set in a fan shape. A movable support 8 is rotatably connected to the inner side of the fan-shaped base 7. A connecting base plate 9 is fixedly connected to the top of the movable support 8. Fixing bolts 10 are rotatably connected to both sides of the fan-shaped base 7. Both fixing bolts 10 are set in an abutting position with the movable support 8. The end of the fixing bolt 10 that contacts the movable support 8 is set in an arc shape. A movable base plate 11 is fixedly connected to the top of the connecting base plate 9. A fixing groove 34 is opened on one side of the movable base plate 11.

[0033] It should be noted that the mounting plate 1 is fixed to one side of the welding end of the equipment body 33 by bolts. The fixing position of the equipment body 33 can be selected as needed. The fixing method is to connect the mounting plate 1 with bolts made at the corresponding position of the equipment body 33. This installation method requires little modification to the equipment body 33, is easy to modify, and the installation position can be flexibly selected to meet different welding equipment and various installation requirements.

[0034] The movable bolt 2 can slide a long distance on one side of the mounting plate 1. After the device is installed, the overall position of other components except the mounting plate 1 can be adjusted as needed to meet the position adjustment requirements during actual use. At the same time, the height of the inner column 5 of the base can be adjusted by rotating the adjusting shaft 6, so that the adjusting shaft 6 drives the inner column 5 of the base to rise or fall. This allows the fixing components to be adjusted according to the height requirements of different equipment and different welding ends, so that the steel and aluminum materials to be welded can be kept at the same level as the lower end face of the welding end, thus enabling the horizontal conveying of metal materials during subsequent feeding.

[0035] Meanwhile, the angle of the movable support 8 can be adjusted by the fixing bolts 10 on both sides. When the angle of the movable support 8 needs to be adjusted, the fixing bolts 10 on both sides are loosened to allow the movable support 8 to rotate and adjust. After the adjustment is completed, the fixing bolts 10 on both sides are tightened to abut against the sides of the movable support 8 to fix the movable support 8. Since the fixing components and the movable base plate 11 are both set on the top of the connecting base plate 9, the fixed steel and aluminum materials can be adjusted at the same time when the angle of the movable support 8 is adjusted. This allows the steel and aluminum materials and the welding end to be in a mutually perpendicular state, thereby ensuring that the welding surface has a square outline during welding and avoiding the situation where the welding surface is tilted due to the welding end not being parallel to the side of the equipment body 33.

[0036] In summary, the multi-directional adjustment of the feeding component can fully adapt to different polymer diffusion welding equipment and different welding end faces. The low installation difficulty and low operating cost make this application easy to widely use. In particular, the angle adjustment of the movable base plate 11 can ensure that the welding surface of the steel and aluminum materials is in an absolutely square outline during welding, thereby avoiding the problem of welding surface tilting caused by manual clamping welding, thus improving the accuracy and welding quality during actual welding.

[0037] A support inclined plate 12 is fixedly connected to one side of the inner column 5 of the base. The end of the support inclined plate 12 away from the inner column 5 of the base is set with an arc-shaped profile. An elastic limiting block 13 is provided at the bottom of the movable base plate 11. An elastic element is set between the elastic limiting block 13 and the movable base plate 11. When the elastic element contracts, the elastic limiting block 13 can contract inward to the inside of the movable base plate 11. A scale plate column 14 is fixedly connected inside the movable base plate 11. A scale ruler is provided at the top of the scale plate column 14. A sliding sleeve block 15 is slidably sleeved on the outside of the scale plate column 14. The sliding sleeve block 15 is slidably connected to the inside of the movable base plate 11. A fastening bolt 16 is provided inside the sliding sleeve block 15. A positioning block 17 is fixedly connected to the bottom of the sliding sleeve block 15. The positioning block 17 is slidably connected to the bottom of the movable base plate 11.

[0038] It should be noted that the movable base plate 11 is further supported by the supporting inclined plate 12 to improve the overall stability of the movable base plate 11. After the steel and aluminum materials are fixed by the fixing components, the movable base plate 11 is pushed towards the equipment body 33 until the supporting inclined plate 12 contacts the elastic limiting block 13. At this time, the end of the steel and aluminum material to be welded is close to the welding end face of the equipment body 33. The position of the elastic limiting block 13 is set according to the actual size of the equipment. When the supporting inclined plate 12 contacts the elastic limiting block 13, the steel and aluminum material is close to the welding end face of the equipment body 33. At this time, the positioning of the steel and aluminum material is completed.

[0039] During welding, the movable base plate 11 is pushed with force, and the elastic limiting block 13 is pressed by the supporting inclined plate 12, causing the elastic limiting block 13 to contract and rise, allowing the movable base plate 11 to continue sliding. The sliding stops when the supporting inclined plate 12 is blocked by the positioning block 17. At this point, the steel and aluminum material extends into the upper and lower welding end faces of the equipment body 33, extending a distance equal to the required welding surface length. This allows for more precise welding of the steel and aluminum material, ensuring the welding surface meets the required dimensions. These welding dimensions can be adjusted by adjusting the position of the positioning block 17. The specific adjustment method is as follows: The method involves loosening the fastening bolt 16 to allow the sliding sleeve 15 to slide on the outside of the scale plate column 14. The distance is determined according to the scale on the top of the scale plate column 14. After the positioning block 17 stops at the required distance, the fastening bolt 16 is tightened to fix it. This allows the welding area of ​​the steel and aluminum materials to meet the required welding size, thereby replacing the manual clamping welding method, greatly improving the welding accuracy, ensuring that the welding area meets the requirements, guaranteeing the welding quality, and keeping the manual operation position away from the welding end face of the equipment body 33, thus ensuring the safety of the operator.

[0040] Furthermore, the fixing assembly includes a fixing base plate 18 slidably connected to the inner side of the movable base plate 11. A base plate bolt 35 is fixedly connected to one side of the fixing base plate 18, and the base plate bolt 35 is slidably connected to the inner side of the fixing groove 34. The fixing base plate 18 can slide inside the fixing groove 34. The fixing base plate 18 is fixed by tightening the base plate bolt 35. Limiting posts 19 are fixedly connected to both ends of the fixing base plate 18. A fixing pressure plate 20 is slidably connected to the outer side of the limiting posts 19. The limiting posts 19 limit the fixing pressure plate 20, so that the fixing pressure plate 20 can only slide up and down. A limiting horizontal shaft 21 is fixedly connected to one side of the fixing base plate 18. An adjusting screw shaft 22 is rotatably connected to the side of the fixing base plate 18 away from the limiting horizontal shaft 21. Two screw shafts with opposite rotation directions are provided at both ends of the adjusting screw shaft 22. The spiral grooves are respectively engaged with the sliding bases 23 at both ends of the fixed base plate 18, so that when the adjusting screw shaft 22 is rotated, the sliding bases 23 at both ends can be brought closer or further apart. The fixed base plate 18 has sliding bases 23 slidably connected to both sides. The sliding base 23 on the side closer to the limiting horizontal shaft 21 is slidably sleeved on the outside of the limiting horizontal shaft 21, and the sliding base 23 on the side closer to the adjusting screw shaft 22 is threadedly sleeved on the outside of the adjusting screw shaft 22. The top of the sliding bases 23 on both sides is fixedly connected with vertical studs 24. The outside of the vertical studs 24 is slidably connected with movable pressure brackets 25. The movable pressure brackets 25 are slidably connected to the outside of the fixed pressure plate 20. The outside of the vertical studs 24 is threadedly connected with fixed nuts 26. The side of the sliding base 23 is fixedly connected with a fixed side plate 27.

[0041] An extension base plate 28 is rotatably connected inside the fixed side plate 27. The extension base plate 28 is made of a thin and hard metal material. A transmission component 29 is fixedly connected to one side of the extension base plate 28. A connecting column 30 is fixedly connected to the bottom of the transmission component 29. A transmission link 31 is rotatably connected to the bottom end of the connecting column 30. The length of the transmission link 31 can be stretched, so that the extension base plate 28 can move with the fixed side plate 27. A push-pull handle 32 is fixedly connected to one side of the transmission link 31. Rotatable joints are provided at both ends of the transmission link 31. The two joints are respectively connected to the connecting columns 30 on both sides.

[0042] It should be noted that, when fixing materials such as steel and aluminum, the materials are placed on the top of the fixed base plate 18 and the bottom of the fixed pressure plate 20. By rotating the adjusting screw 22, the movable pressure brackets 25 at both ends are brought closer together under the drive of the sliding base 23. This causes the fixed side plates 27 at both ends to come closer together to clamp and limit the two sides of the steel and aluminum materials, ensuring that the two sides of the steel and aluminum materials are on the same plane and ensuring the neatness of the materials after welding. By rotating multiple fixing nuts 26, the fixed pressure plate 20 presses down and fixes the steel and aluminum materials, thus completing the fixation of the steel and aluminum materials and making them have a neat rectangular outline after welding. The longer dimensions of the fixed base plate 18 and the fixed pressure plate 20, and the sliding arrangement of multiple fixed side plates 27, can meet the needs of materials of different widths. Moreover, the two fixing components can be used to fix multiple nodes when the metal material is long, ensuring the stability of the metal material.

[0043] When clamping and fixing the side of the steel and aluminum material, the movement of the fixed side plate 27 can simultaneously drive the extension base plate 28 to move. Since the extension base plate 28 protrudes inward to the fixed side plate 27, it can be positioned at the bottom of the steel and aluminum material and at the top of the extension base plate 28. Since the extension base plate 28 is in contact with the top of the lower welding end face of the equipment body 33, the steel and aluminum material can be directly moved to the top of the lower welding end face of the equipment body 33 during feeding, as shown in the movable connecting plate 3. This avoids the situation where multi-layer materials such as steel and aluminum are in a layered state before welding and cannot be directly fed into the top of the lower end face of the equipment body 33, making the operation more convenient for workers. After the feeding of the steel and aluminum material is completed, by pulling the push-pull handle 32, the extension base plate 28 can be flipped and moved towards the fixed base plate 18 under the drive of the transmission link 31 to the transmission component 29, thereby separating it from the lower end face of the equipment body 33, and then the steel and aluminum material can be welded.

[0044] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following:

[0045] In this invention, by setting up multi-directional adjustment of the feeding component, it can fully adapt to different polymer diffusion welding equipment and different welding end faces. The low installation difficulty and usage cost make this application easy to widely use. In particular, the angle adjustment of the movable substrate can ensure that the welding surface of the steel and aluminum materials is in an absolutely square outline when welding, thereby avoiding the problem of welding surface tilting caused by manual clamping welding, thus improving the accuracy and welding quality during actual welding.

[0046] The feeding distance of steel and aluminum materials is determined by the positioning block in the feeding component, so that the welding area of ​​steel and aluminum materials can meet the required welding size. This can replace the manual clamping welding method, greatly improve the welding accuracy, ensure the welding area meets the requirements, and guarantee the welding quality. The adjustable position of the positioning block can flexibly adjust the welding length of steel and aluminum materials as needed. The manual operation position is far away from the welding end face of the equipment body, thus ensuring the safety of the operator.

[0047] This invention, by setting up fixing components, can fix metal materials such as steel and aluminum on four sides, ensuring the neatness of the metal materials and making them have a neat rectangular outline after welding. The setting of the long dimensions of the fixing base plate and the fixing pressure plate, and the sliding setting of multiple fixing side plates can meet the needs of materials with different widths. Moreover, the fixing components are set to two, which can fix multiple nodes when the length of the metal material is long, ensuring the stability of the metal material.

[0048] By extending the base plate, the lowest horizontal plane of the steel-aluminum welding end can be limited. This allows the steel-aluminum material to be directly moved to the top of the welding end face of the equipment body during feeding. This avoids the situation where multi-layered materials such as steel and aluminum cannot be directly fed into the top of the lower end face of the equipment body due to their layered state before welding. This makes the operation more convenient for workers. After feeding the steel-aluminum material, pulling the push-pull handle can cause the extended base plate to flip and move towards the fixed base plate, thereby separating it from the lower end face of the equipment body, and then welding of the steel-aluminum material can be performed.

[0049] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0050] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A polymer diffusion welding device for steel-aluminum composite bars, comprising a device body, characterized in that, A welding auxiliary assembly is provided on one side of the equipment body. This assembly consists of a fixing component and a feeding component. The feeding component includes a mounting plate fixedly connected to one side of the equipment body. Multiple movable bolts are slidably connected to one side of the mounting plate. A movable connecting plate is provided on the outer side of the multiple movable bolts. The movable connecting plate is slidably connected to one side of the mounting plate. A cylindrical base is fixedly connected to the side of the movable connecting plate away from the mounting plate. An inner column is slidably connected to the inner side of the cylindrical base. An adjusting shaft is rotatably connected inside the cylindrical base. The adjusting shaft and the inner column are threadedly connected. A fan-shaped base is fixedly connected to the top of the column. A movable support is rotatably connected to the inner side of the fan-shaped base. A connecting base plate is fixedly connected to the top of the movable support. A fixing assembly is located on the top of the connecting base plate. Fixing bolts are rotatably connected to both sides of the fan-shaped base, and both fixing bolts are arranged in an abutting position against the movable support. A movable base plate is fixedly connected to the top of the connecting base plate. A fixing groove is opened on one side of the movable base plate. A supporting inclined plate is fixedly connected to one side of the inner column of the base. The end of the supporting inclined plate away from the inner column of the base has an arc-shaped profile. An elastic limiting block is provided at the bottom of the movable base plate. A scale plate column is fixedly connected to the movable base plate. A sliding sleeve block is slidably sleeved on the outer side of the scale plate column. The sliding sleeve block is slidably connected to the inner side of the movable base plate. A fastening bolt is provided inside the sliding sleeve block. A positioning block is fixedly connected to the bottom of the sliding sleeve block. The positioning block is slidably connected to the bottom of the movable base plate. The fixing assembly includes a fixing base plate slidably connected to the inner side of the movable base plate. A base plate bolt is fixedly connected to one side of the fixing base plate. The base plate bolt is slidably connected to the inner side of the fixing groove. Limiting posts are fixedly connected to both ends of the fixing base plate. A fixing pressure plate is slidably connected to the outer side of the limiting post. A fixing plate is fixed to one side of the fixing base plate. A limiting horizontal axis is connected. An adjusting screw is rotatably connected to the side of the fixed base plate away from the limiting horizontal axis. Sliding bases are slidably connected to both sides of the fixed base plate. The sliding base on the side closer to the limiting horizontal axis is slidably sleeved on the outside of the limiting horizontal axis, and the sliding base on the side closer to the adjusting screw is threadedly sleeved on the outside of the adjusting screw. A fixed side plate is fixedly connected to one side of the sliding base. An extension base plate is rotatably connected inside the fixed side plate. A transmission component is fixedly connected to one side of the extension base plate. A connecting column is fixedly connected to the bottom of the transmission component. A transmission connecting rod is rotatably connected to the bottom end of the connecting column. A push-pull handle is fixedly connected to one side of the transmission connecting rod.

2. The polymer diffusion welding equipment for steel-aluminum composite bars according to claim 1, characterized in that, Both sides of the sliding base are fixedly connected to the top of a vertical stud, and a movable pressure frame is slidably connected to the outside of the vertical stud. The movable pressure frame is slidably connected to the outside of the fixed pressure plate, and a fixed nut is threadedly connected to the outside of the vertical stud.

Images