A bellows automatic welding equipment

Abstract

The present invention discloses an automatic bellows welding device, which belongs to the technical field of bellows welding equipment. The invention comprises a moving cylinder and a walking mechanism for pushing the moving cylinder to move in the bellows, a cylindrical bracket rotatably installed in the moving cylinder, a mounting seat fixed in the cylindrical bracket, a connecting plate slidably installed on the mounting seat along the length direction of the cylindrical bracket, a moving plate fixed on the bottom surface of the connecting plate, a rotating plate rotatably installed on one end of the moving plate away from the connecting plate, a guide rail 1 is installed on the side of the rotating plate away from the moving plate, a welding gun is slidably installed on the guide rail 1 along the length direction of the rotating plate, a cylinder 1 is hinged on the top surface of the moving plate, a piston rod end of the cylinder 1 is hinged to the side of the rotating plate, a cylinder 2 is fixed on the side of the rotating plate away from the cylinder 1, and the piston rod end of the cylinder 2 is fixedly connected to the welding gun; the automatic bellows welding device can realize an efficient and stable automated welding process, ensure stable welding quality and a high degree of automation.

Description

Technical Field

[0001] The invention belongs to the technical field of bellows welding equipment, and in particular relates to automatic bellows welding equipment. Background Art

[0002] As a crucial piping component, bellows are widely used in the petroleum, chemical, electric power, metallurgy, and construction industries, particularly in environments subject to high pressure, temperature fluctuations, and frequent vibration. Bellows play a vital role in various piping systems due to their excellent flexibility, corrosion resistance, and sealing properties. With the continuous advancement of industrialization, the demand for bellows is steadily increasing, and the market demand for high-quality, high-precision bellows is particularly prominent.

[0003] In the production process of corrugated pipes, welding technology is one of the key processes. Traditional corrugated pipe welding usually relies on manual operation or semi-automatic equipment. During manual welding, the operation process is cumbersome and prone to welding defects, such as uneven welds, insufficient strength at weld joints, unstable heat-affected zones in the welding area, etc., which affect the welding quality and efficiency of the corrugated pipes. Summary of the Invention

[0004] The purpose of the present invention is to provide a bellows automatic welding device with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The top surface of the movable plate is hinged with a cylinder first, and the end of the piston rod of the cylinder is hinged with the side of the movable plate, and the piston rod of the cylinder is hinged with the side of the movable plate, and the piston rod of the cylinder is fixed with a cylinder second on the side surface of the movable plate, and the piston rod of the cylinder is fixed with a cylinder second on the side surface of the movable plate

[0007] As a further optimization scheme of the present invention, the driving assembly includes a connecting block fixed to the side of the connecting plate, a horizontally arranged screw is rotatably installed on the mounting seat, the connecting block is sleeved on the outer periphery of the screw, the connecting block is matched with the screw thread transmission, a motor 1 is fixed on the mounting seat, the output end of the motor 1 is coaxially fixed with the screw, a horizontally arranged guide rail 2 is fixed on the mounting seat, and the connecting plate slides along the length direction of the screw through the guide rail 2.

[0008] As a further optimization scheme of the present invention, the rotating assembly includes a ring gear fixed to the inner circumference of the movable cylinder, the inner circumference of the cylindrical bracket is fixed with motor 2, the output end of motor 2 is coaxially fixed with a gear, and the gear and the ring gear are engaged with each other.

[0009] As a further optimization scheme of the present invention, the walking mechanism includes two connecting sleeves, the outer periphery of the connecting sleeve is provided with an abutting sleeve, the two connecting sleeves are respectively a first inner sleeve and a second inner sleeve, the two abutting sleeves are respectively a first outer sleeve and a second outer sleeve, the end face of the first outer sleeve is fixed with an annular plate 1, the end face of the first inner sleeve and the end face of the moving cylinder are fixedly connected to the side face of the annular plate 1, the end face of the second outer sleeve away from the first outer sleeve is fixed with an annular plate 2, the end face of the second inner sleeve is fixedly connected to the side face of the annular plate 2; the outer periphery of the abutting sleeve The surface can fit with the trough of the inner circumference of the bellows, the outer circumference of the first inner sleeve is sleeved and fixed with a circular ring 1, the outer circumference of the second inner sleeve is sleeved and fixed with a circular ring 2, two symmetrically arranged cylinders 3 are fixed between the circular ring 1 and the circular ring 2, the outer circumference of the connecting sleeve is provided with a plurality of blocks at equal intervals along its own circumference, the connecting sleeve is provided with a pushing component for pushing the block to slide along the radial direction of the connecting sleeve, the outer circumference of the abutting sleeve is provided with a through groove for passing the block, and the side of the block away from the connecting sleeve can fit with the trough and peak of the inner circumference of the bellows.

[0010] As a further optimization scheme of the present invention, the pushing assembly includes a pushing ring sleeved on the outer circumference of the connecting sleeve, the pushing ring is rotatably connected to the connecting sleeve, and several arc-shaped plates are fixed on the side of the pushing ring close to the blocking block, the arc-shaped plates correspond to the blocking blocks one by one, and the side of the blocking block is provided with a makeshift groove for passing the arc-shaped plates, a stop block is fixed at one end of the arc-shaped plate, and the distance between the side of the arc-shaped plate away from the stop block and the connecting sleeve gradually decreases, and a cylinder four is fixed on the inner circumference of the abutting sleeve, and a push rod is hinged at the end of the piston rod of the cylinder four, and the push rod is rotatably connected to the pushing ring.

[0011] As a further optimization scheme of the present invention, a guide rod is fixed to the side of the clamping block close to the connecting sleeve, and a guide groove for passing the guide rod is provided on the outer circumference of the connecting sleeve. A spring is sleeved on the outer circumference of the guide rod, and one end of the spring is fixedly connected to the outer circumference of the connecting sleeve, and the other end of the spring is fixedly connected to the side of the clamping block.

[0012] As a further optimization scheme of the present invention, a fitting groove is provided on the outer circumference of the first outer sleeve, and a fitting ring is fixed to the end face of the second outer sleeve close to the first outer sleeve, and the fitting ring can be inserted into the fitting groove, and the inner circumference of the fitting ring is fitted with the outer circumference of the fitting groove. The outer circumference of the first outer sleeve is provided with a plurality of slots connected to the fitting groove, and the side of the fitting ring close to the first outer sleeve is fixed with a plurality of inserts, and the inserts can be inserted into the slots.

[0013] As a further optimization solution of the present invention, a ventilation sleeve is fixedly provided on the inner circumference of the annular plate 2, the end surface of the ventilation sleeve can abut against the end surface of the movable cylinder, and a fan is installed in the ventilation sleeve.

[0014] The beneficial effects of the present invention are: the moving cylinder is driven by the walking mechanism to move to the welding position in the corrugated pipe, the moving plate is pushed to move by the driving assembly, and the cooperation of cylinder one and cylinder two enables the welding gun to automatically adjust to the optimal welding angle and move along the radial direction of the corrugated pipe for welding, thereby realizing an efficient and stable automated welding process, ensuring stable welding quality and a high degree of automation, and reducing manual operation and possible errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a cross-sectional view of the movable cylinder of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the drive assembly of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the rotating assembly of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the walking mechanism of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the second outer sleeve of the present invention;

[0021] Figure 7 It is a structural schematic diagram of the first outer sleeve of the present invention.

[0022] In the figure: 1. Moving cylinder; 11. Cylindrical bracket; 111. Support ring; 112. Support plate; 113. Limit block; 114. Limit groove; 12. Mounting seat; 13. Connecting plate; 14. Limiting ring; 2. Moving plate; 21. Rotating plate; 22. Guide rail 1; 23. Welding gun; 24. Cylinder 1; 25. Cylinder 2; 3. Driving assembly; 31. Connecting block; 32. Lead screw; 33. Motor 1; 34. Guide rail 2; 4. Rotating assembly; 41. Gear ring; 42. Motor 2; 43. Gear; 5. Traveling mechanism; 51. Connecting sleeve; 511. First inner sleeve; 5111. Ring 1; 51 2. Second inner sleeve; 5121. Circular ring 2; 52. Abutting sleeve; 521. First outer sleeve; 5211. Annular plate 1; 5212. Fitting groove; 5213. Slot; 522. Second outer sleeve; 5221. Annular plate 2; 5222. Fitting ring; 5223. Insert; 53. Cylinder 3; 54. Block; 541. Giving groove; 55. Through groove; 56. Guide rod; 57. Guide groove; 58. Spring; 6. Pushing assembly; 61. Pushing ring; 62. Arc plate; 621. Stopper; 63. Cylinder 4; 64. Pushing rod; 7. Ventilation sleeve; 71. Fan; 72. Annular groove. DETAILED DESCRIPTION

[0023] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Reference Figure 1 、 Figure 2 and Figure 3 The automatic bellows welding equipment includes a movable drum 1 and a traveling mechanism 5 for moving the movable drum 1 within the bellows. The movable drum 1 is coaxially arranged with the bellows. A cylindrical bracket 11 is rotatably mounted within the movable drum 1, and a rotating assembly 4 is provided within the movable drum 1 for driving the cylindrical bracket 11 to rotate. A mounting base 12 is fixed within the cylindrical bracket 11, and a connecting plate 13 is slidably mounted on the mounting base 12 along the length of the cylindrical bracket 11. The mounting base 12 is provided with a driving assembly 3 for driving the connecting plate 13 to move.

[0025] Reference Figure 3The bottom surface of the connecting plate 13 is fixed to the movable plate 2. A rotating plate 21 is rotatably mounted on the end of the movable plate 2 facing away from the connecting plate 13. A guide rail 1 22 is mounted on the side of the rotating plate 21 facing away from the movable plate 2. A welding gun 23 is slidably mounted on the guide rail 1 22 along the length of the rotating plate 21. A cylinder 1 24 is hingedly mounted on the top surface of the movable plate 2. The end of the piston rod of cylinder 1 24 is hingedly connected to the side of the rotating plate 21. A cylinder 2 25 is fixed to the side of the rotating plate 21 facing away from cylinder 1 24. The end of the piston rod of cylinder 25 is fixedly connected to the welding gun 23.

[0026] The traveling mechanism 5 is used to drive the moving cylinder 1 to move to the welding position in the corrugated pipe, and then the driving component 3 is used to push the moving plate 2 to move to the outside of the moving cylinder 1, and the cylinder 1 24 is started. The cylinder 1 24 pushes the rotating plate 21 to rotate upward, so that the welding gun 23 is in a vertical state, and then the cylinder 2 25 is started. The cylinder 2 25 drives the welding gun 23 to move along the radial direction of the corrugated pipe, so that the welding gun 23 can weld the corrugated pipe, realizing an efficient and stable automated welding process, ensuring stable welding quality and a high degree of automation, and reducing manual operation and possible errors.

[0027] Reference Figure 3 The drive assembly 3 includes a connecting block 31 fixed to the side of the connecting plate 13. A horizontally disposed lead screw 32 is rotatably mounted on the mounting base 12. The connecting block 31 is sleeved around the outer periphery of the lead screw 32, and the connecting block 31 and the lead screw 32 engage in a threaded engagement. A motor 1 33 is fixed to the mounting base 12, and the output end of the motor 1 33 is coaxially fixed to the lead screw 32. A horizontally disposed guide rail 2 34 is fixed to the mounting base 12, and the connecting plate 13 slides along the length of the lead screw 32 via the guide rail 2 34.

[0028] Start motor 1 33, which drives the lead screw 32 to rotate. The lead screw 32 drives the movable plate 2 to move along the length direction of the movable cylinder 1 through the connecting block 31 and the connecting plate 13, so that the movable plate 2 can move smoothly along the length direction of the movable cylinder 1, pushing the welding gun 23 to move to the outside of the movable cylinder 1, making it easier for the welding gun 23 to be deployed and facilitating the welding operation.

[0029] Reference Figure 2 、 Figure 3 and Figure 4 The cylindrical bracket 11 includes two supporting rings 111, and a plurality of supporting plates 112 are fixed between the two supporting rings 111. A limit ring 14 is fixed to the inner circumference of the movable cylinder 1, and a plurality of limit blocks 113 are fixed to the outer circumference of the supporting ring 111. The side of the limit block 113 away from the supporting ring 111 is provided with a limit groove 114 for passing through the limit ring 14. The rotating assembly 4 includes a ring gear 41 fixed to the inner circumference of the movable cylinder 1, and a motor 2 42 is fixed to the inner circumference of the cylindrical bracket 11. A gear 43 is coaxially fixed to the output end of the motor 2 42, and the gear 43 and the ring gear 41 are meshed with each other.

[0030] Start the second motor 42, which drives the gear 43 to rotate. The gear 43 engages with the ring gear 41, thereby driving the cylindrical bracket 11 to rotate stably and accurately, and driving the welding gun 23 to rotate, thereby achieving comprehensive welding of the bellows by the welding gun 23, improving the flexibility during the welding process, and ensuring the accuracy of welding.

[0031] Reference Figure 5 The walking mechanism 5 includes two connecting sleeves 51, with an abutting sleeve 52 sleeved around the outer periphery of the connecting sleeve 51. The two connecting sleeves 51 are respectively a first inner sleeve 511 and a second inner sleeve 512, and the two abutting sleeves 52 are respectively a first outer sleeve 521 and a second outer sleeve 522. An annular plate 1 5211 is fixed to the end face of the first outer sleeve 521. The end face of the first inner sleeve 511 and the end face of the moving cylinder 1 are both fixedly connected to the side face of the annular plate 1 5211. An annular plate 2 5221 is fixed to the end face of the second outer sleeve 522 away from the first outer sleeve 521. The end face of the second inner sleeve 512 is fixedly connected to the side face of the annular plate 2 5221.

[0032] Reference Figure 2 and Figure 6 A ventilation sleeve 7 is fixedly mounted on the inner circumference of annular plate 2 5221, and a fan 71 is installed within the ventilation sleeve 7. An annular groove 72 is formed on the end of the ventilation sleeve 7 near the movable cylinder 1, and the inner circumference of the movable cylinder 1 mates with the outer circumference of the annular groove 72. The bellows welding process produces toxic and harmful gases. Fan 71 accelerates the exhaust of these gases while providing effective ventilation and heat dissipation for the movable cylinder 1, preventing overheating that could affect the welding process.

[0033] Reference Figure 5 The outer circumference of the abutting sleeve 52 is capable of fitting into the troughs of the inner circumference of the bellows. A first ring 5111 is sleeved and fixed onto the outer circumference of the first inner sleeve 511, and a second ring 5121 is sleeved and fixed onto the outer circumference of the second inner sleeve 512. Two symmetrically arranged cylinders 53 are fixed between the first and second rings 5111, 5121. The outer circumference of the connecting sleeve 51 is provided with a plurality of clamping blocks 54 spaced evenly along its circumference. The connecting sleeve 51 is provided with a pushing assembly 6 for pushing the clamping blocks 54 to slide radially along the connecting sleeve 51. The outer circumference of the abutting sleeve 52 is provided with a through slot 55 for the clamping blocks 54 to pass through. The side of the clamping blocks 54 facing away from the connecting sleeve 51 is capable of fitting into the troughs and peaks of the inner circumference of the bellows.

[0034] First, put the two abutment sleeves 52 into the bellows, and the outer circumference of the abutment sleeve 52 fits with the trough of the inner circumference of the bellows, so that the abutment sleeve 52 and the bellows are coaxially arranged. Then use the pushing component 6 to move the block 54 on the second inner sleeve 512 in the direction away from the second inner sleeve 512, so that the block 54 is engaged with the bellows, and the position of the second outer sleeve 522 remains unchanged; then start the cylinder 3 53, and the cylinder 3 53 pushes the ring 1 5111 to move in the direction away from the ring 2 5121, and the ring 1 5111 drives The first inner sleeve 511 moves. After the first inner sleeve 511 moves a certain distance, the pushing assembly 6 is used to engage the block 54 on the first inner sleeve 511 with the bellows, and the position of the first outer sleeve 521 remains unchanged; then the cylinder three 53 is started to make the ring two 5121 move toward the direction close to the ring one 5111, thereby driving the second outer sleeve 522 to move in the bellows. After the second outer sleeve 522 stops moving, the first inner sleeve 511 is moved again, and this cycle is repeated, thereby achieving smooth movement of the welding gun 23 in the bellows.

[0035] Reference Figure 7 A guide rod 56 is fixed to the side of the block 54 near the connecting sleeve 51, and a guide groove 57 is provided on the outer circumference of the connecting sleeve 51 for passing the guide rod 56. A spring 58 is sleeved on the outer circumference of the guide rod 56, one end of the spring 58 is fixedly connected to the outer circumference of the connecting sleeve 51, and the other end of the spring 58 is fixedly connected to the side of the block 54. The pushing assembly 6 includes a pushing ring 61 sleeved on the outer circumference of the connecting sleeve 51, and the pushing ring 61 is rotatably connected to the connecting sleeve 51. A plurality of arc-shaped plates 62 are fixed to the side of the pushing ring 61 near the block 54, and the arc-shaped plates 62 correspond to the block 54 one by one. A clearance groove 541 is provided on the side of the block 54 for passing the arc-shaped plates 62, and a stopper 621 is fixed to one end of the arc-shaped plate 62. The distance between the side of the arc-shaped plate 62 away from the stopper 621 and the connecting sleeve 51 gradually decreases. A cylinder 4 63 is fixed to the inner circumference of the abutment sleeve 52 , and a push rod 64 is hinged to the end of the piston rod of the cylinder 4 63 , and the push rod 64 is rotatably connected to the push ring 61 .

[0036] Start cylinder four 63, which drives the push ring 61 to rotate through the push rod 64, and the push ring 61 drives the arc plate 62 to rotate. The arc plate 62 drives the block 54 to slide radially along the connecting sleeve 51 through the clearance groove 541, thereby realizing the engagement and separation of the block 54 and the bellows.

[0037] Reference Figure 6 and Figure 7The outer circumference of the first outer sleeve 521 is provided with a fitting groove 5212. A fitting ring 5222 is fixed to the end surface of the second outer sleeve 522 near the first outer sleeve 521. The fitting ring 5222 can be inserted into the fitting groove 5212, and the inner circumference of the fitting ring 5222 fits the outer circumference of the fitting groove 5212. The outer circumference of the first outer sleeve 521 is provided with a plurality of slots 5213 connected to the fitting groove 5212. A plurality of inserts 5223 are fixed to the side surface of the fitting ring 5222 near the first outer sleeve 521. The inserts 5223 can be inserted into the slots 5213.

[0038] When the first outer sleeve 521 is displaced relative to the second outer sleeve 522 , the insert 5223 is displaced in the slot 5213 , thereby ensuring a tight connection between the first outer sleeve 521 and the second outer sleeve 522 , thereby enhancing the overall stability of the device.

[0039] The implementation principle of the automatic bellows welding equipment in the embodiment of the present application is: the moving cylinder 1 is driven by the walking mechanism 5 to move to the welding position in the bellows, and the moving plate 2 is pushed to move by the driving component 3. Combined with the cooperation of cylinder 1 24 and cylinder 2 25, the welding gun 23 can automatically adjust to the optimal welding angle and move along the radial direction of the bellows for welding, thereby realizing an efficient and stable automated welding process, ensuring stable welding quality and a high degree of automation, and reducing manual operation and possible errors.

[0040] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A bellows automatic welding device, characterized by: The invention comprises a moving cylinder (1) and a walking mechanism (5) for pushing the moving cylinder (1) to move in a bellows, wherein the moving cylinder (1) is coaxially arranged with the bellows, a cylindrical bracket (11) is rotatably installed in the moving cylinder (1), a rotating assembly (4) for driving the cylindrical bracket (11) to rotate is arranged in the moving cylinder (1), a mounting seat (12) is fixed in the cylindrical bracket (11), a connecting plate (13) is slidably installed on the mounting seat (12) along the length direction of the cylindrical bracket (11), a driving assembly (3) for driving the connecting plate (13) to move is arranged on the mounting seat (12), and a bottom surface of the connecting plate (13) is fixed with a A movable plate (2), wherein a rotating plate (21) is rotatably mounted on one end of the movable plate (2) away from the connecting plate (13), a guide rail (22) is mounted on the side of the rotating plate (21) away from the movable plate (2), a welding gun (23) is slidably mounted on the guide rail (22) along the length direction of the rotating plate (21), a cylinder (24) is hingedly mounted on the top surface of the movable plate (2), a piston rod end of the cylinder (24) is hingedly mounted on the side of the rotating plate (21), a cylinder (25) is fixed on the side of the rotating plate (21) away from the cylinder (24), and a piston rod end of the cylinder (25) is fixedly connected to the welding gun (23); The walking mechanism (5) includes two connecting sleeves (51), the outer periphery of the connecting sleeve (51) is provided with an abutting sleeve (52), the two connecting sleeves (51) are respectively a first inner sleeve (511) and a second inner sleeve (512), the two abutting sleeves (52) are respectively a first outer sleeve (521) and a second outer sleeve (522), the end face of the first outer sleeve (521) is fixed with an annular plate 1 (5211), the end face of the first inner sleeve (511) and the end face of the moving cylinder (1) are both fixedly connected to the side face of the annular plate 1 (5211), the end face of the second outer sleeve (522) away from the first outer sleeve (521) is fixed with an annular plate 2 (5221), the end face of the second inner sleeve (512) is fixedly connected to the side face of the annular plate 2 (5221); the abutting sleeve (52) is The outer peripheral surface can fit with the trough of the inner peripheral surface of the bellows. The outer peripheral surface of the first inner sleeve (511) is sleeved and fixed with a circular ring 1 (5111), and the outer peripheral surface of the second inner sleeve (512) is sleeved and fixed with a circular ring 2 (5121). Two symmetrically arranged cylinders 3 (53) are fixed between the circular ring 1 (5111) and the circular ring 2 (5121). The outer peripheral surface of the connecting sleeve (51) is provided with a plurality of blocks (54) at equal intervals along its own circumference. The connecting sleeve (51) is provided with a pushing component (6) for pushing the blocks (54) to slide along the radial direction of the connecting sleeve (51). The outer peripheral surface of the abutting sleeve (52) is provided with a through groove (55) for penetrating the blocks (54). The side of the blocks (54) away from the connecting sleeve (51) can fit with the troughs and peaks of the inner peripheral surface of the bellows.

2. The automatic bellows welding equipment according to claim 1, characterized in that: The driving assembly (3) includes a connecting block (31) fixed to the side of the connecting plate (13); a horizontally arranged lead screw (32) is rotatably mounted on the mounting seat (12); the connecting block (31) is sleeved on the outer periphery of the lead screw (32); the connecting block (31) and the lead screw (32) are threadedly engaged; a motor (33) is fixed on the mounting seat (12); the output end of the motor (33) is coaxially fixed with the lead screw (32); a horizontally arranged guide rail (34) is fixed on the mounting seat (12); and the connecting plate (13) slides along the length direction of the lead screw (32) through the guide rail (34).

3. The automatic bellows welding equipment according to claim 1, characterized in that: The rotating assembly (4) includes a gear ring (41) fixed to the inner circumference of the moving cylinder (1), a second motor (42) is fixed to the inner circumference of the cylindrical bracket (11), a gear (43) is coaxially fixed to the output end of the second motor (42), and the gear (43) and the gear ring (41) are meshed with each other.

4. The automatic bellows welding equipment according to claim 1, characterized in that: The pushing assembly (6) includes a pushing ring (61) sleeved on the outer peripheral surface of the connecting sleeve (51), the pushing ring (61) is rotatably connected to the connecting sleeve (51), a plurality of arc-shaped plates (62) are fixed on the side of the pushing ring (61) close to the clamping block (54), the arc-shaped plates (62) correspond to the clamping block (54) one by one, and a clearance groove (541) for passing the arc-shaped plates (62) is opened on the side of the clamping block (54), a stopper (621) is fixed on one end of the arc-shaped plate (62), and the distance between the side of the arc-shaped plate (62) away from the stopper (621) and the connecting sleeve (51) gradually decreases, and a cylinder four (63) is fixed on the inner peripheral surface of the abutting sleeve (52), and a pushing rod (64) is hinged at the end of the piston rod of the cylinder four (63), and the pushing rod (64) is rotatably connected to the pushing ring (61).

5. The automatic bellows welding equipment according to claim 1, characterized in that: A guide rod (56) is fixed to the side of the clamping block (54) close to the connecting sleeve (51); a guide groove (57) for passing the guide rod (56) is provided on the outer peripheral surface of the connecting sleeve (51); a spring (58) is sleeved on the outer peripheral surface of the guide rod (56); one end of the spring (58) is fixedly connected to the outer peripheral surface of the connecting sleeve (51), and the other end of the spring (58) is fixedly connected to the side of the clamping block (54).

6. The automatic bellows welding equipment according to claim 1, characterized in that: The outer circumference of the first outer sleeve (521) is provided with a fitting groove (5212), and the second outer sleeve (522) is fixed with a fitting ring (5222) near the end face of the first outer sleeve (521), and the fitting ring (5222) can be inserted into the fitting groove (5212), and the inner circumference of the fitting ring (5222) is fitted with the outer circumference of the fitting groove (5212). The outer circumference of the first outer sleeve (521) is provided with a plurality of slots (5213) connected to the fitting groove (5212), and the side of the fitting ring (5222) near the first outer sleeve (521) is fixed with a plurality of inserts (5223), and the inserts (5223) can be inserted into the slots (5213).

7. The automatic bellows welding equipment according to claim 1, characterized in that: A ventilation sleeve (7) is fixedly provided on the inner circumference of the annular plate 2 (5221), and the end face of the ventilation sleeve (7) can abut against the end face of the movable cylinder (1). A fan (71) is installed in the ventilation sleeve (7).

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