Welding clamping device for aluminum alloy reducing pipe
By designing a welding clamping device including disc seat, jaw, telescopic cylinder and auxiliary components, the problem of poor welding clamping effect of aluminum alloy reducer tube is solved, and higher clamping stability and welding accuracy are achieved.
Patent Information
- Application Number
- CN202421626775.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the prior art, the welding clamping effect of aluminum alloy reducer pipes is poor, resulting in low welding accuracy and unstable quality.
A welding clamping device including a disc seat, a jaw, a telescopic cylinder and an auxiliary member is designed. The claws slide in the radial direction of the disc seat, and the auxiliary members realize stable clamping and positioning of the aluminum alloy reducer tube through components such as baffle, torsion spring and buffer pad.
The clamping effect and stability of aluminum alloy reducer tubes are improved, the accuracy and quality of welding are enhanced, and the problems of clamping instability and thrust influence in the prior art are overcome.
Smart Images
Figure CN222873739U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding of aluminum alloy reducers, in particular to a welding clamping device for aluminum alloy reducers. Background Art
[0002] Aluminum alloy is a silvery white light metal. Aluminum alloy products have been widely used in aerospace, automobile manufacturing, mechanical processing, power equipment, shipbuilding and chemical industries due to their high temperature resistance, corrosion resistance, fatigue resistance, thermal conductivity and electrical conductivity. Aluminum alloy has excellent specific strength, specific modulus, fracture toughness, fatigue strength and stable corrosion resistance, which makes aluminum alloy have high processing plasticity and show high practicality in many fields. Especially in industries such as high-voltage power transmission and distribution and oil transportation, aluminum alloy products are widely used, mainly used to make aluminum alloy casings for insulating gases of metal-enclosed power transmission lines. In order to protect these transmission channels, aluminum alloy products are mainly in the form of pipelines to serve as protective casings for transmission channels.
[0003] In the process of laying aluminum alloy pipes, it is common to encounter situations where the diameter changes rapidly. Aluminum alloy reducers can achieve the conversion from a large pipe mouth to a small pipe mouth, making aluminum alloy reducers a widely used product for aluminum alloy products. When making aluminum alloy reducers, the diameter of one end of the aluminum alloy reducer must be larger than the diameter of the other end of the aluminum alloy reducer. At the same time, the middle part of the aluminum alloy reducer presents a trumpet-shaped structure. For this reason, the diameter of the aluminum alloy reducer needs to gradually decrease from one end of the aluminum alloy reducer to the other end of the aluminum alloy reducer. When welding aluminum alloy reducers, a clamp must be used to fix the aluminum alloy reducers. The three-jaw chuck is a widely used type of clamp. For the clamping of aluminum alloy reducers, the three jaws of the three-jaw chuck can move synchronously and equidistantly. In this way, in the process of clamping the aluminum alloy reducer, the three jaws of the three-jaw chuck perform the clamping operation synchronously, thereby locating the center of the aluminum alloy reducer to realize the automatic centering function, thereby simplifying the positioning difficulty of the aluminum alloy reducer and reducing the complexity of welding.
[0004] However, since the movement directions of the three jaws of the three-jaw chuck are respectively along the radial direction of the aluminum alloy reducer, when the three jaws clamp the aluminum alloy reducer, the pressure applied by the three jaws to the aluminum alloy reducer is also along the radial direction of the aluminum alloy reducer. At the same time, since the middle part of the aluminum alloy reducer presents a trumpet-shaped structure, the middle side wall of the aluminum alloy reducer also presents an inclined structure. In the process of the three-jaw chuck clamping the aluminum alloy reducer, the three jaws are easy to clamp the middle part of the aluminum alloy reducer, but since the direction in which the aluminum alloy reducer is subjected to pressure and the angle between the middle side wall are not perpendicular, according to the force principle of the aluminum alloy reducer, the part of the aluminum alloy reducer subjected to the pressure of the three jaws will be converted into the force to push the aluminum alloy reducer, thereby affecting the clamping effect of the aluminum alloy reducer, and then affecting the welding accuracy of the aluminum alloy reducer. Therefore, there is room for improvement in the clamping process of the aluminum alloy reducer, so as to meet the welding accuracy of the aluminum alloy reducer and improve the welding quality of the aluminum alloy reducer. Summary of the invention
[0005] In view of the deficiencies in the prior art, the utility model provides a welding clamping device for an aluminum alloy reducer which has good clamping effect, stable clamping, convenient clamping of the aluminum alloy reducer, and convenient clamping and positioning, and is used to overcome the defects in the prior art.
[0006] The technical scheme adopted by the utility model is: a welding clamping device for an aluminum alloy reducer, comprising a disc seat and three clamping claws arranged on the disc seat and sliding along the radial direction of the disc seat, a support rotatably arranged on the disc seat, a telescopic cylinder arranged on the support, a round tube rotatably arranged on the telescopic rod of the telescopic cylinder, the round tube is sleeved in the disc seat, the center line of the disc seat and the center line of the round tube are located on the same axis, an auxiliary component is arranged at one end of the round tube away from the telescopic cylinder; the auxiliary component comprises a circular plate arranged at one end of the round tube away from the telescopic cylinder, a plurality of baffles hinged on one side of the circular plate close to the telescopic cylinder, and a torsion spring is arranged on the baffle, the two sides of the torsion spring are respectively connected with the baffle and the circular plate, the plurality of baffles are arranged on the outer side of the circular tube, and the plurality of baffles are evenly arranged on the side of the circular plate along the circumferential direction of the circular plate.
[0007] Preferably, the several baffles are respectively provided with fixing rods at one end close to the circular tube, and fixing plates are respectively provided on both sides of the fixing rods, the fixing plates are installed on the sides of the circular plates close to the telescopic cylinder, the fixing plates are in contact with the baffles, and sleeve holes are opened on the fixing plates, the fixing rods are movably sleeved on the sleeve holes, and fixing disks are respectively provided at both ends of the fixing rods, the torsion spring is located between the fixing plate and the fixing disk, the torsion spring is sleeved on the fixing rod, and the two sides of the torsion spring are respectively installed on the fixing plate and the fixed disk.
[0008] Preferably, a buffer pad is respectively provided at one end of the baffles away from the circular tube. The buffer pad adopts an arc-shaped plate structure made of elastic material. The buffer pad is installed on the end of the baffle away from the circular tube. The circular plate adopts a frustum plate structure. The diameter of the circular plate gradually increases in the direction from away from the telescopic cylinder to close to the telescopic cylinder.
[0009] Preferably, a screw is provided on one side of the circular plate close to the telescopic cylinder, the screw thread is sleeved in the circular tube, the side of the circular plate close to the telescopic cylinder is in contact with the circular tube, and slots are respectively provided on both sides of the circular plate.
[0010] Preferably, a circular groove is provided in the middle of the support, and the circular groove is opened along the end face away from the disc seat to the end face close to the disc seat. A support block is rotatably mounted in the circular groove, and one side of the support block is installed on the disc seat. Fixing holes are respectively provided on both sides of the support along the vertical direction.
[0011] Preferably, a support plate is provided on a side of the support away from the disc seat, one side of the support plate is mounted on the support, and the telescopic cylinder is mounted on the support plate.
[0012] Preferably, a tapered roller bearing is mounted on the telescopic rod of the telescopic cylinder, an annular groove is provided on the inner wall of the round tube, the outer ring of the tapered roller bearing is installed in the annular groove, and the inner ring of the tapered roller bearing is installed on the telescopic rod of the telescopic cylinder.
[0013] Preferably, the side walls of the three claws close to the circular tube all adopt a stage shape, the length of the claw close to the circular tube is not greater than the length of the claw away from the circular tube, and a limiting groove is provided on the side wall of the claw close to the circular tube, and the limiting groove extends along the corner of the claw toward the telescopic cylinder.
[0014] Preferably, a pad is provided on the limiting groove, the pad is a plate-shaped structure made of elastic material, and the pad is installed on the side wall of the claw close to the circular tube.
[0015] The beneficial effects of the utility model are as follows: first, the utility model slides along the radial direction of the disc seat through the three claws provided, so as to clamp and position the aluminum alloy reducer. Since the rotation angle of the baffle is limited by the round tube and the round plate, when the aluminum alloy reducer is sleeved on the round tube along the direction close to the telescopic cylinder, several baffles rotate in the direction close to the round tube, and the movement of the aluminum alloy reducer is not limited, so that it is convenient to sleeve the aluminum alloy reducer on the round tube. After the aluminum alloy reducer passes through the baffle, the baffle is reset by the torsion spring. By controlling the telescopic cylinder to shorten, since the baffle is constrained by the round plate, the baffle squeezes the aluminum alloy reducer on the disc seat, so as to quickly clamp the aluminum alloy reducer, thereby overcoming the thrust of the three claws on the aluminum alloy reducer, so as to improve the clamping effect and clamping stability of the aluminum alloy reducer.
[0016] Secondly, the utility model sets a fixing rod on the baffle plate and installs a fixing plate on the circular plate, so that the baffle plate is hinged on the side of the circular plate, and the two sides of the torsion spring are respectively installed on the fixing plate and the fixing plate, so as to drive the fixing rod and the baffle plate to twist and reset, thereby facilitating the limiting of the aluminum alloy reducer, and further improving the stability of the aluminum alloy reducer clamping. In addition, the utility model prevents the baffle plate from scratching the aluminum alloy reducer by setting a buffer pad, so as to improve the stability of the aluminum alloy reducer clamping. The circular plate adopts a truncated cone plate structure, so as to guide the aluminum alloy reducer to be sleeved on the circular tube in the direction close to the telescopic cylinder, further simplifying the difficulty of the aluminum alloy reducer clamping.
[0017] Thirdly, the utility model sets a screw rod in a round tube and installs the screw rod on a round plate. By twisting the round plate, the screw rod is driven to rotate, so as to facilitate loading and unloading of the screw rod, thereby facilitating replacement and maintenance of the auxiliary components. A slot is provided on the round plate, so that when it is difficult to twist the round plate, a tool such as a screwdriver can be inserted into the slot to facilitate twisting the round plate with the help of the tool. In addition, the support block provided in the utility model facilitates rotational connection between the support and the disc seat, and a fixing hole is provided on the support block to facilitate fixing of the support. In addition, the utility model installs the telescopic cylinder on the side of the support away from the disc seat through the support plate provided, so as to facilitate control of the telescopic cylinder for telescopic operation.
[0018] In addition, the utility model provides a tapered roller bearing to enable a rotational connection between the round tube and the telescopic rod of the telescopic cylinder, and can withstand the axial load between the round tube and the telescopic rod of the telescopic cylinder, thereby protecting the reliability of welding and clamping of the aluminum alloy reducer. Moreover, the utility model adopts a stage shape through the side walls of the three clamping claws close to the round tube, and a limiting groove is provided on the side walls of the clamping claws close to the round tube, so as to facilitate the use of the clamping claws to clamp the aluminum alloy reducer, and the provided pad is used to prevent the clamping claws from clamping the aluminum alloy reducer, thereby improving the stability of the clamping claws clamping the aluminum alloy reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a first stereoscopic schematic diagram of the utility model.
[0020] Figure 2 It is a second stereoscopic schematic diagram of the utility model.
[0021] Figure 3 This is an assembly structure diagram of the telescopic cylinder and auxiliary components of the utility model.
[0022] Figure 4 for Figure 3 A magnified schematic diagram of center A.
[0023] Figure 5 This is a three-dimensional diagram of the installation of the circular plate and the screw in the utility model.
[0024] Figure 6 It is a three-dimensional schematic diagram of the utility model for clamping an aluminum alloy reducer. DETAILED DESCRIPTION
[0025] like Figures 1 to 5 As shown, a welding clamping device for an aluminum alloy reducer comprises a disc seat 1 and three claws 2 arranged on the disc seat 1 and sliding in the radial direction of the disc seat 1, a support 3 is rotatably arranged on the disc seat 1, a telescopic cylinder 4 is arranged on the support 3, a round tube 5 is rotatably arranged on the telescopic rod of the telescopic cylinder 4, the round tube 5 is sleeved in the disc seat 1, the center line of the disc seat 1 and the center line of the round tube 5 are located on the same axis, and an auxiliary component is arranged at one end of the round tube 5 away from the telescopic cylinder 4; the auxiliary component comprises a circular plate 6 arranged at one end of the round tube 5 away from the telescopic cylinder 4, a plurality of baffles 7 hinged on one side of the circular plate 6 close to the telescopic cylinder 4, and a torsion spring 8 is arranged on the baffle 7, the two sides of the torsion spring 8 are respectively connected to the baffle 7 and the circular plate 6, the plurality of baffles 7 are arranged on the outer side of the circular tube 5, and the plurality of baffles 7 are evenly arranged on the side of the circular plate 6 along the circumferential direction of the circular plate 6. The three clamping claws 2 are used to clamp the aluminum alloy reducer, and the three clamping claws 2 are used to move synchronously and equidistantly along the radial direction of the disc seat 1 to clamp the aluminum alloy reducer on one side of the disc seat 1; the telescopic cylinder 4 is used to drive the auxiliary component to be telescopic, and the auxiliary component is used to assist in clamping the aluminum alloy reducer to prevent the aluminum alloy reducer from sliding during the welding process. Since the rotation angle of the baffle 7 is limited by the round tube 5 and the round plate 6, the aluminum alloy reducer is sleeved on the round tube 5 in the direction close to the telescopic cylinder 4. The aluminum alloy reducer squeezes the baffles 7 so that the baffles 7 rotate in the direction close to the round tube 5; after the aluminum alloy reducer passes through the baffle 7, the torsion spring 8 is used to reset the baffle 7 so that the baffle 7 contacts the round plate 6, and the telescopic cylinder 4 is controlled to be shortened. The baffle 7 is constrained by the round plate 6, so that the baffle 7 squeezes the aluminum alloy reducer on the disc seat 1, thereby quickly clamping the aluminum alloy reducer to meet the needs of aluminum alloy reducer welding. It should be noted that the driving rotation mechanism of the disc seat 1 is a common mechanism for machining. Through the motor and transmission assembly, it can drive the disc seat 1 to rotate around the center line of the disc seat 1 to meet the need of rotating the aluminum alloy reducer during welding.
[0026] In this embodiment, please refer to Figure 5, the several baffles 7 are respectively provided with fixing rods 9 at one end close to the round tube 5, and fixing plates 10 are respectively provided on both sides of the fixing rod 9. The fixing plate 10 is installed on the side of the round plate 6 close to the telescopic cylinder 4, and the fixing plate 10 is in contact with the baffle 7. A sleeve hole is opened on the fixing plate 10, and the fixing rod 9 is movably sleeved on the sleeve hole. Fixed disks 11 are respectively provided at both ends of the fixing rod 9, and the torsion spring 8 is located between the fixing plate 10 and the fixing disk 11. The torsion spring 8 is sleeved on the fixing rod 9, and the two sides of the torsion spring 8 are respectively installed on the fixing plate 10 and the fixing disk 11. The baffle 7 is hinged to the round plate 6 through the fixing plate 10, and the two sides of the torsion spring 8 are respectively installed on the fixing plate 10 and the fixing disk 11, so as to facilitate the fixing rod 9 and the baffle 7 to twist and reset, so as to facilitate the limiting of the aluminum alloy reducer and improve the stability of the aluminum alloy reducer clamping.
[0027] Specifically, a buffer pad 12 is respectively provided on one end of the several baffles 7 away from the circular tube 5. The buffer pad 12 adopts an arc-shaped plate structure made of elastic material. The buffer pad 12 is installed on the end of the baffle 7 away from the circular tube 5 to prevent the end of the baffle 7 away from the circular tube 5 from scratching the aluminum alloy reducer, so as to improve the stability of clamping the aluminum alloy reducer. The circular plate 6 adopts a truncated cone plate structure. The diameter of the circular plate 6 gradually increases in the direction away from the telescopic cylinder 4 to the direction close to the telescopic cylinder 4, so as to facilitate guiding the aluminum alloy reducer to be mounted on the circular tube 5 in the direction close to the telescopic cylinder 4.
[0028] Please refer again Figures 3 to 5 A screw 13 is provided on the side of the circular plate 6 close to the telescopic cylinder 4. The screw 13 is threadedly sleeved in the circular tube 5. The diameter of the screw 13 coincides with the inner diameter of the circular tube 5. The side of the circular plate 6 close to the telescopic cylinder 4 is in contact with the circular tube 5. Slots 14 are respectively provided on both sides of the circular plate 6. By twisting the circular plate 6, the screw 13 is driven to rotate, so as to facilitate the loading and unloading of the screw 13, thereby facilitating the replacement and maintenance of the auxiliary components. It should be noted that when the screw 13 is twisted too tight, that is, when it is difficult to twist the circular plate 6, a tool such as a screwdriver is inserted into the slot 14 so that the circular plate 6 can be twisted with the help of the tool.
[0029] Please refer again Figure 2A circular groove 15 is provided in the middle of the support 3, and the circular groove 15 is provided along the end face away from the disc seat 1 to the end face close to the disc seat 1. A support block 16 is rotatably mounted in the circular groove 15, and a support hole is provided on the support block 16. The circular tube 5 is mounted in the support hole. A fixed bearing is provided between the support block 16 and the circular groove 15. The support block 16 is rotatably connected to the circular groove 15 through the fixed bearing. The outer ring of the fixed bearing is mounted on the circular groove, and the inner ring of the fixed bearing is mounted on the support block 16. One side of the support block 16 is mounted on the disc seat 1. Fixing holes 17 are respectively provided on both sides of the support 3 along the vertical direction, and bolts are mounted in the fixing holes 17 to fix the support 3, thereby facilitating the fixed assembly of the utility model.
[0030] In this embodiment, a support plate 18 is provided on the side of the support 3 away from the disc seat 1, one side of the support plate 18 is installed on the support 3, and the telescopic cylinder 4 is installed on the support plate 18, so that the telescopic cylinder 4 is installed on the side of the support 3 away from the disc seat 1.
[0031] Please refer again Figure 3 and 4 The telescopic rod of the telescopic cylinder 4 is provided with a tapered roller bearing 19, and an annular groove 20 is provided on the inner wall of the round tube 5. The outer ring of the tapered roller bearing 19 is installed in the annular groove 20, and the inner ring of the tapered roller bearing 19 is installed on the telescopic rod of the telescopic cylinder 4, thereby realizing the rotation connection between the round tube 5 and the telescopic cylinder 4. When the baffle 7 squeezes the aluminum alloy reducer onto the disc seat 1, the round tube 5 and the telescopic rod of the telescopic cylinder 4 are subjected to axial loads. For this reason, the bearings assembled between the round tube 5 and the telescopic cylinder 4 need to withstand the axial load and withstand the axial The bearings for carrying loads include tapered roller bearings 19 and angular contact ball bearings. The structures of tapered roller bearings 19 and angular contact ball bearings are different. The rolling element of angular contact ball bearings is a ball, while the rolling element of tapered roller bearings 19 is a roller. Therefore, angular contact ball bearings are point contact, which makes the angular contact ball bearings bear less load, but the angular contact ball bearings can withstand higher speeds; tapered roller bearings 19 are line contact, which makes the tapered roller bearings 19 bear a larger load, but the speed of the tapered roller bearings 19 is not as good as that of angular contact ball bearings. For the welding process of aluminum alloy reducers, the aluminum alloy reducers rotate slowly, so tapered roller bearings 19 are suitable for welding clamping needs.
[0032] In this embodiment, the side walls of the three claws 2 close to the circular tube 5 all adopt a stage shape, the length of the side of the claw 2 close to the circular tube 5 is not greater than the length of the side of the claw 2 away from the circular tube 5, and a limiting groove 21 is provided on the side wall of the claw 2 close to the circular tube 5. The limiting groove 21 extends along the corner of the claw 2 toward the direction of the telescopic cylinder 4. By inserting one end of the aluminum alloy reducer into the limiting groove 21, one end of the aluminum alloy reducer contacts the groove wall of the limiting groove 21, thereby limiting one end of the aluminum alloy reducer, so as to facilitate the use of the three claws 2 to clamp the aluminum alloy reducer.
[0033] Specifically, a pad 22 is provided on the limiting groove 21. The pad 22 is a plate structure made of elastic material. The pad 22 is installed on the side wall of the clamping claw 2 close to the round tube 5 to prevent the clamping claw 2 from clamping the aluminum alloy reducer, thereby improving the stability of clamping the aluminum alloy reducer.
[0034] The method of using this product is as follows: Figures 1 to 6 As shown, first, the size of the aluminum alloy reducer to be welded is measured to determine that the minimum radius of the aluminum alloy reducer is not less than the radius of the circular plate 6, and the minimum radius of the aluminum alloy reducer is not greater than the center distance from the buffer pad 12 to the circular plate 6, and the burrs on the aluminum alloy reducer and the particles adsorbed on the outer wall of the aluminum alloy reducer are processed to ensure the accuracy of the clamping of the three claws 2. Then, the telescopic cylinder 4 is controlled to extend, and the processed aluminum alloy reducer is sleeved on the circular tube 5 in the direction close to the telescopic cylinder 4, and the aluminum alloy reducer is placed on the disc seat 1. After the aluminum alloy reducer passes through the baffle 7, the baffle 7 is reset by the torsion spring 8 so that the baffle 7 contacts the circular plate 6. Then, the telescopic cylinder 4 is controlled to shorten, and the baffle 7 is constrained by the circular plate 6, so that the baffle 7 squeezes the aluminum alloy reducer onto the disc seat 1, and then the three claws 2 are controlled to slide synchronously toward the center of the disc seat 1, so that the three claws 2 clamp the aluminum alloy reducer, thereby completing the clamping of the aluminum alloy reducer.
[0035] After welding is completed, the aluminum alloy reducer needs to be removed from this product. First, the three claws 2 are controlled to slide synchronously away from the center of the disc seat 1, and the telescopic cylinder 4 is controlled to extend, thereby releasing the clamping of the aluminum alloy reducer. Then, a straight pipe is used to be sleeved on the auxiliary component so that a plurality of extrusion baffles 7 are all located in the straight pipe, and the diameter of the straight pipe is not greater than the minimum diameter of the reducer. The aluminum alloy reducer is moved so that the aluminum alloy reducer passes through the straight pipe, thereby removing the aluminum alloy reducer. Finally, the straight pipe is removed from the auxiliary component to complete the removal of the aluminum alloy reducer. It should be noted that, during the process of removing the straight tube from the auxiliary component, the baffle 7 is squeezed by the torsion spring 8 and contacts the inner wall of the straight tube. In order to avoid excessive friction between the straight tube and the baffle 7, the inner wall of the straight tube is kept smooth. Before using the clamping aluminum alloy reducer, the straight tube should be tried out, that is, the straight tube is put on the auxiliary component and removed from the auxiliary component to meet the requirements of use.
[0036] Through this embodiment, the three clamping claws 2 are set to slide along the radial direction of the disc seat 1, so as to clamp and position the aluminum alloy reducer. Since the rotation angle of the baffle 7 is limited by the round tube 5 and the circular plate 6, when the aluminum alloy reducer is sleeved on the round tube 5 along the direction close to the telescopic cylinder 4, several baffles 7 rotate in the direction close to the round tube 5, and the movement of the aluminum alloy reducer is not limited, so that the aluminum alloy reducer is conveniently sleeved on the round tube 5. After the aluminum alloy reducer passes through the baffle 7, the baffle 7 is reset by the torsion spring 8. By controlling the telescopic cylinder 4 to shorten, since the baffle 7 is constrained by the circular plate 6, the baffle 7 squeezes the aluminum alloy reducer on the disc seat 1, so as to quickly clamp the aluminum alloy reducer, thereby overcoming the thrust of the three clamping claws 2 on the aluminum alloy reducer, so as to improve the clamping effect and clamping stability of the aluminum alloy reducer.
[0037] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A welding clamping device for an aluminum alloy reducer, comprising a disc seat (1) and three clamping claws (2) arranged on the disc seat (1) and sliding along the radial direction of the disc seat (1), characterized in that: The disc seat (1) is rotatably provided with a support (3), a telescopic cylinder (4) is provided on the support (3), a round tube (5) is rotatably provided on the telescopic rod of the telescopic cylinder (4), the round tube (5) is sleeved in the disc seat (1), the center line of the disc seat (1) and the center line of the round tube (5) are located on the same axis, and an auxiliary component is provided at one end of the round tube (5) away from the telescopic cylinder (4); The auxiliary component comprises a circular plate (6) arranged at one end of the circular tube (5) away from the telescopic cylinder (4), a plurality of baffles (7) hingedly connected to a side of the circular plate (6) close to the telescopic cylinder (4), and a torsion spring (8) arranged on the baffle (7), the two sides of the torsion spring (8) being respectively connected to the baffle (7) and the circular plate (6), the plurality of baffles (7) being arranged on the outer side of the circular tube (5), and the plurality of baffles (7) being evenly arranged on the side surface of the circular plate (6) along the circumferential direction of the circular plate (6).
2. The welding clamping device for the aluminum alloy reducer according to claim 1 is characterized in that: The plurality of baffles (7) are respectively provided with fixing rods (9) at one end close to the circular tube (5), and fixing plates (10) are respectively provided on both sides of the fixing rods (9). The fixing plates (10) are mounted on the side of the circular plate (6) close to the telescopic cylinder (4), and the fixing plates (10) are in contact with the baffles (7). A sleeve hole is provided on the fixing plate (10), and the fixing rods (9) are movably sleeved on the sleeve hole. Fixing plates (11) are respectively provided at both ends of the fixing rods (9), and a torsion spring (8) is located between the fixing plate (10) and the fixing plate (11). The torsion spring (8) is sleeved on the fixing rod (9), and the two sides of the torsion spring (8) are respectively mounted on the fixing plate (10) and the fixing plate (11).
3. The welding clamping device for the aluminum alloy reducer according to claim 1 is characterized in that: A buffer pad (12) is provided at one end of each of the plurality of baffles (7) away from the circular tube (5). The buffer pad (12) is an arc-shaped plate structure made of elastic material. The buffer pad (12) is mounted on one end of the baffle (7) away from the circular tube (5). The circular plate (6) is a truncated cone plate structure. The diameter of the circular plate (6) gradually increases in a direction away from the telescopic cylinder (4) to a direction close to the telescopic cylinder (4).
4. The welding clamping device for the aluminum alloy reducer according to claim 1 is characterized in that: A screw rod (13) is provided on the side of the circular plate (6) close to the telescopic cylinder (4), and the screw rod (13) is threadedly sleeved in the circular tube (5). The side of the circular plate (6) close to the telescopic cylinder (4) is in contact with the circular tube (5), and slots (14) are respectively provided on both sides of the circular plate (6).
5. The welding clamping device for the aluminum alloy reducer according to claim 1, characterized in that: A circular groove (15) is provided in the middle of the support (3), and the circular groove (15) is provided along the end surface away from the disc seat (1) to the end surface close to the disc seat (1). A support block (16) is rotatably mounted in the circular groove (15), and one side of the support block (16) is mounted on the disc seat (1). Both sides of the support (3) are provided with fixing holes (17) along the vertical direction.
6. The welding clamping device for the aluminum alloy reducer according to claim 1, characterized in that: A support plate (18) is provided on the side of the support (3) away from the disc seat (1), one side of the support plate (18) is mounted on the support (3), and the telescopic cylinder (4) is mounted on the support plate (18).
7. The welding clamping device for aluminum alloy reducer according to claim 1, characterized in that: A tapered roller bearing (19) is mounted on the telescopic rod of the telescopic cylinder (4), an annular groove (20) is formed on the inner wall of the circular tube (5), an outer ring of the tapered roller bearing (19) is mounted in the annular groove (20), and an inner ring of the tapered roller bearing (19) is mounted on the telescopic rod of the telescopic cylinder (4).
8. The welding clamping device for aluminum alloy reducer according to claim 1, characterized in that: The side walls of the three clamping claws (2) close to the circular tube (5) are all in a step shape, the length of the side of the clamping claw (2) close to the circular tube (5) is not greater than the length of the side of the clamping claw (2) away from the circular tube (5), and a limiting groove (21) is provided on the side wall of the clamping claw (2) close to the circular tube (5), and the limiting groove (21) extends along the corner of the clamping claw (2) towards the telescopic cylinder (4).
9. The welding clamping device for the aluminum alloy reducer according to claim 8, characterized in that: A backing plate (22) is provided on the limiting groove (21). The backing plate (22) is a plate-shaped structure made of elastic material. The backing plate (22) is installed on the side wall of the clamping claw (2) close to the circular tube (5).