Auxiliary clamping equipment for welding bellows

Abstract

The present invention discloses an auxiliary clamping device for welding bellows, and the present invention relates to the technical field of welding bellows. The auxiliary clamping device for welding bellows comprises a frame, a driving mechanism, and a fixing mechanism. The driving mechanism comprises a tripod and a first limiting ring. A roller is rotatably mounted on the edge of the surface of the first limiting ring, a slot is provided on the edge of the roller surface, a pushing assembly is installed in the middle of the bottom of the tripod, the fixing mechanism comprises a supporting leg and a second limiting ring, the second limiting ring and the first limiting ring are installed at the same height, a strip hole is provided on the side of the outer circular surface of the second limiting ring, an elastic clip is fixedly connected to the inner cavity of the second limiting ring and one end away from the strip hole, a U-shaped notch is provided in the middle of the surface of the elastic clip, an extrusion module is installed on the outer circular surface of the second limiting ring through the strip hole, thereby achieving the purpose of preventing deviation, accurately docking the bellows port, not prone to deviation, and overall stability.

Description

Technical Field

[0001] The invention relates to the technical field of welded bellows, in particular to auxiliary clamping equipment for welding bellows. Background Art

[0002] A bellows is a pipe used to transport fluids, gases, or other substances. It consists of a series of corrugated folds that give the pipe a certain degree of flexibility and extensibility. Bellows are widely used in construction, factory production, and instrumentation. Bellows mainly include metal bellows, corrugated expansion joints, corrugated heat exchange tubes, diaphragm boxes, and metal hoses. Metal bellows are mainly used to compensate for pipeline thermal deformation, reduce shock, and absorb pipeline settlement deformation. In some engineering applications, large-diameter corrugated pipes can be connected and repaired by circumferential welding due to their large diameter. When performing circumferential welding on large-diameter corrugated pipes, the welded bellows need to be clamped and fixed, and clamping equipment can be used.

[0003] At present, the auxiliary clamping equipment of traditional welding bellows welding processing is inconvenient to dock the large-diameter bellows ports to be welded, and as the equipment runs, it is easy to shift, resulting in uneven docking of the large-diameter bellows ports, affecting the welding quality and making it inconvenient to carry out batch welding processing. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] An auxiliary clamping device for welding bellows, comprising:

[0006] A frame, and a hydraulic cylinder fixedly mounted on a side of the frame surface;

[0007] A driving mechanism, which is used to limit the position of the corrugated pipe to be welded and apply driving force, and the driving mechanism is installed on the side of the top of the frame;

[0008] wherein the driving mechanism comprises a tripod and a first limiting ring, the bottom of the tripod being slidably installed between the side of the bottom of the frame and the edge of the top of the frame, the first limiting ring being fixedly connected to the top of the tripod, a roller being rotatably installed at the edge of the surface of the first limiting ring, a clamping groove being provided at the edge of the roller surface, and a pushing component being installed in the middle of the bottom of the tripod, the corrugated pipe to be welded is passed through the center of the first limiting ring, so that the corrugated pipe to be welded can be preliminarily limited, and the corrugated protrusion on the surface of the corrugated pipe to be welded is embedded in the inside of the clamping groove, and the clamping groove is evenly distributed at the edge of the roller surface, so that the corrugated pipe to be welded can be moved by the cooperation between the corrugated protrusion on the surface of the corrugated pipe and the clamping groove, so that the roller can roll, thereby the three rollers are evenly distributed on the surface of the corrugated pipe to be welded, so that the corrugated pipe to be welded is positioned, and it is not easy to be skewed or offset, which is conducive to the docking of the bellows ports;

[0009] A fixing mechanism, which is used to clamp the corrugated pipe material, and the frame fixing mechanism is installed in the middle of the top of the frame;

[0010] In which, the fixing mechanism includes a supporting leg and a second limiting ring, the bottom of the supporting leg is fixedly installed in the middle of the top of the frame, the second limiting ring is fixedly connected to the top of the supporting leg, and the second limiting ring and the first limiting ring are installed at the same height, a strip hole is provided at the side of the outer circular surface of the second limiting ring, the inner cavity of the second limiting ring and one end away from the strip hole are fixedly connected with an elastic clip, a U-shaped notch is provided in the middle of the surface of the elastic clip, the outer circular surface of the second limiting ring is installed with an extrusion module through the strip hole, and the supporting leg supports the second limiting ring, and the end of the corrugated pipe material to be welded is passed through the center of the second limiting ring, so that the corrugated pipe material can be preliminarily positioned, so that the corrugated pipe material is not easily offset, which is helpful for the subsequent fixation of the corrugated pipe material.

[0011] Preferably, the hydraulic cylinder is installed horizontally, and the telescopic end of the hydraulic cylinder is fixedly connected to the bottom of the tripod surface by screws, and the first limiting ring is installed directly above the tripod.

[0012] Preferably, there are three rollers, and the three rollers are evenly distributed along the circumferential direction of the axis of the second limiting ring, and the clamping grooves are evenly distributed at the edges of the roller surfaces.

[0013] Preferably, the pushing assembly includes a right-angled connecting plate, which is fixedly connected to the bottom of the tripod by bolts, and the bottom of the right-angled connecting plate is rotatably mounted on a cylindrical wheel, the top of the surface of the right-angled connecting plate is fixedly connected to a pushing cone, and the tip of the pushing cone faces the second limiting ring, and the bottom of the surface of the right-angled connecting plate is fixedly mounted with an inclined pressing force piece, and the inclined pressing force piece is installed below the pushing cone, and is fixedly mounted on the bottom of the tripod through the right-angled connecting plate, and the bottom of the outer circumference of the cylindrical wheel fits with the bottom of the inner cavity of the frame, so that the cylindrical wheel and the right-angled connecting plate can support the tripod, making the tripod and the first limiting ring more stable as a whole, and by extending the telescopic end of the hydraulic cylinder, the telescopic end of the hydraulic cylinder can apply a pushing force to the tripod, and by utilizing the rolling of the cylindrical wheel, the tripod is supported by rolling, which can promote the smooth movement of the tripod and the first limiting ring.

[0014] Preferably, there are two cylindrical wheels, and the two cylindrical wheels are evenly installed at the bottom of the right-angled connecting plate, and there are two inclined pressing force members, and the two inclined pressing force members are symmetrically installed along the right-angled connecting plate.

[0015] Preferably, there are three strip holes, and the three strip holes are evenly distributed on the outer circular surface of the second limiting ring, the elastic clips are evenly distributed in the inner cavity of the second limiting ring and away from one end of the strip holes, and the elastic clips are installed at an angle.

[0016] Preferably, the extrusion module includes a connecting ring, which is sleeved on the outer circular surface of the second limiting ring, and the inner side surface of the connecting ring is fixedly connected with a square sliding block, and the square sliding block is slidably installed between the bar hole and the second limiting ring. The end of the square sliding block away from the inner side surface of the second limiting ring is fixedly connected with the extrusion ring, and a return spring is fixedly connected between the surface of the square sliding block and the inner wall of the bar hole. The bottom of the outer circular surface of the connecting ring is fixedly connected with a bending rod, and a groove is provided at the bottom end of the bending rod. As the tripod is pushed to move by the telescopic end of the hydraulic cylinder, the tripod drives the right-angled connecting plate to move together, and the tip of the jacking cone can be used. When inserted into the interior of the groove, the bending rod is subjected to a pushing force, and the square sliding block can slide inside the strip hole, so that the connecting ring and the extrusion ring move together toward the direction close to the elastic clip, and the return spring is compressed, and the edge of the inner side of the extrusion ring fits with the surface of the elastic clip, so that the elastic clip is pressed by the extrusion ring. As the extrusion ring continues to move, the elastic clip is elastically bent, and the end of the elastic clip away from the inner wall of the second limiting ring can be embedded in the corrugated concave surface of the surface of the corrugated pipe material, so that the corrugated pipe material can be fixed and clamped, and it is not easy to loosen, and the interaction between the structures is fully utilized to connect the structures together.

[0017] Preferably, the extrusion ring is installed inside the second limiting ring, the extrusion ring and the connecting ring are concentric circles, and the reset spring is installed in the middle of the inner cavity of the strip hole.

[0018] When the bellows is welded, the hydraulic cylinder is turned on again to work, and the telescopic end of the hydraulic cylinder is used to shrink so that the tripod is subjected to a pulling force. The ejecting cone can be driven out of the groove through the right-angled connecting plate, so that the pushing force on the bending rod disappears, and under the elastic force of the reset spring, the extrusion ring moves to the end away from the elastic clip, so that the extrusion force on the elastic clip disappears, and the elastic clip can be reset by its own elastic force, thereby loosening the bellows, which helps to unload the welded bellows and facilitates batch welding of the bellows.

[0019] The cam is fixedly mounted on the top of the U-shaped frame, and a V-shaped support plate is hinged on the top of the U-shaped frame and one end away from the U-shaped frame. The inner side of the V-shaped support plate is fixedly connected to a limiting card strip, and the end of the U-shaped frame away from the V-shaped support plate is fixedly connected to a strip force-bearing plate, which is installed just below the second limiting ring. A rotating rod is rotatably mounted on the end of the strip force-bearing plate away from the flat plate. The right-angled connecting plate drives the inclined pressing force piece to move toward the side close to the strip force plate, and the inclined teeth at the top of the inclined pressing force piece apply pressing force to the rotating rod, and combined with the rotational installation between the flat plate and the top of the U-shaped frame, the strip force plate drives the V-shaped lifting plate to rotate counterclockwise to adjust the angle, so that the V-shaped lifting plate can be lifted, so that the inner side surface of the V-shaped lifting plate fits with the bottom of the outer cylindrical surface of the corrugated pipe material, and the corrugated pipe material is lifted, so that the longer corrugated pipe material will not be bent and damaged, and the limiting card strip is embedded in the corrugated groove on the surface of the corrugated pipe material, so the corrugated pipe material can be positioned.

[0020] Preferably, the opening of the V-shaped lifting plate is upward, the limiting clips are evenly distributed on the inner side of the V-shaped lifting plate, and the strip-shaped force-bearing plate is installed at an angle.

[0021] The present invention provides an auxiliary clamping device for welding bellows, which has the following beneficial effects:

[0022] 1. The auxiliary clamping equipment for the welding processing of the welded bellows can initially limit the bellows to be welded by passing the bellows to be welded through the center of the first limiting ring, and the corrugated protrusions on the surface of the bellows to be welded are embedded into the inside of the slot, and the slots are evenly distributed on the edge of the roller surface. The bellows to be welded can be moved by cooperating between the corrugated protrusions on the surface of the bellows and the slots, so that the roller can roll, and the three rollers are evenly distributed on the surface of the bellows to be welded, so that the bellows to be welded can be positioned, which is not prone to skew and offset, and is conducive to the docking of the bellows ports.

[0023] 2. The auxiliary clamping equipment for the welding bellows utilizes the fit between the bottom of the outer circumference of the cylindrical wheel and the bottom of the inner cavity of the frame, so that the cylindrical wheel and the right-angled connecting plate can support the tripod, making the tripod and the first limiting ring more stable as a whole, and by extending the telescopic end of the hydraulic cylinder, a driving force can be applied to the tripod through the telescopic end of the hydraulic cylinder, and the rolling of the cylindrical wheel can be used to support the tripod in a rolling manner, which can promote the smooth movement of the tripod and the first limiting ring.

[0024] 3. The auxiliary clamping equipment for the welding bellows uses the support legs to support the second limiting ring, and passes the end of the bellows material to be welded through the center of the second limiting ring, so as to preliminarily position the bellows material, making it less likely for the bellows material to shift, which is helpful for subsequent fixation of the bellows material.

[0025] 4. The auxiliary clamping equipment for the welding processing of the welded bellows uses a top cone to push the bottom end of the bending rod, so that the connecting ring and the extrusion ring move together in the direction close to the elastic clip, and the inner edge of the extrusion ring fits with the surface of the elastic clip, so that the elastic clip is pressed by the extrusion ring. As the extrusion ring continues to move, the elastic clip is elastically bent, and the end of the elastic clip away from the inner wall of the second limiting ring can be embedded in the corrugated concave surface of the surface of the bellows material, so that the bellows material can be fixed and clamped, and it is not easy to loosen.

[0026] 5. The auxiliary clamping equipment for the welding processing of the welded bellows utilizes the telescopic end of the hydraulic cylinder to contract, so that the tripod is subjected to a pulling force, and the ejecting cone can be driven out from the inside of the groove through the right-angled connecting plate, so that the pushing force on the bending rod disappears, and under the elastic force of the reset spring, the extrusion ring moves to the end away from the elastic clip, so that the extrusion force on the elastic clip disappears, and the elastic clip can be reset by its own elastic force, thereby loosening the bellows, which helps to unload the welded bellows and facilitates batch welding processing of the bellows.

[0027] 6. The auxiliary clamping equipment for the welding processing of the welded bellows uses the inclined teeth at the top of the inclined pressing force piece to apply pressing pressure to the rotating rod, so that the strip force plate drives the V-shaped lifting plate to rotate counterclockwise to adjust the angle, and the V-shaped lifting plate can be lifted, so that the inner side of the V-shaped lifting plate fits with the bottom of the outer circular surface of the bellows material, and the bellows material is lifted, so that the longer bellows material will not be bent and damaged, and the limiting card strip is embedded in the corrugated groove on the surface of the bellows material, so the bellows material can be positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the auxiliary clamping equipment for welding bellows according to the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the auxiliary clamping device for welding bellows according to the present invention when viewed from above;

[0030] Figure 3 Schematic diagram of the connection structure between the driving mechanism and the frame of the present invention;

[0031] Figure 4 This is a schematic diagram of the overall structure of the propulsion assembly of the present invention;

[0032] Figure 5 It is a schematic diagram of the connection structure between the fixing mechanism and the frame of the present invention;

[0033] Figure 6 This is a schematic diagram of the overall structure of the fixing mechanism of the present invention;

[0034] Figure 7 This is a schematic diagram of the overall structure of the extrusion module of the present invention;

[0035] Figure 8 It is a schematic diagram of the connection structure between the lifting mechanism and the frame of the present invention.

[0036] In the figure: 1. frame; 2. hydraulic cylinder; 3. driving mechanism; 4. fixing mechanism; 5. lifting mechanism; 31. tripod; 32. first limiting ring; 33. roller; 34. slot; 35. pushing assembly; 351. right-angle connecting plate; 352. cylindrical wheel; 353. pushing cone; 354. tilting pressing force member; 41. supporting leg; 42. second limiting ring; 43. strip hole; 44. elastic snap-in piece; 45. U-shaped notch; 46. extrusion module; 461. connecting ring; 462. square sliding block; 463. extrusion ring; 464. return spring; 465. bending rod; 466. groove; 51. U-shaped frame; 52. flat plate; 53. V-shaped lifting plate; 54. limiting card strip; 55. strip force plate; 56. rotating rod. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution:

[0039] An auxiliary clamping device for welding bellows, comprising:

[0040] A frame 1, and a hydraulic cylinder 2 fixedly mounted on a side surface of the frame 1;

[0041] A driving mechanism 3, which is used to limit the position of the corrugated pipe to be welded and apply driving force. The driving mechanism 3 is installed on the side of the top of the frame 1;

[0042] The driving mechanism 3 includes a tripod 31 and a first limiting ring 32. The bottom of the tripod 31 is slidably installed between the side of the top of the frame 1. The first limiting ring 32 is fixedly connected to the top of the tripod 31. A roller 33 is rotatably installed on the edge of the surface of the first limiting ring 32. A card slot 34 is provided on the edge of the surface of the roller 33. A pushing component 35 is installed in the middle of the bottom of the tripod 31. When the staff passes the corrugated pipe to be welded through the center of the first limiting ring 32, the corrugated pipe to be welded can be initially limited. The corrugated protrusion on the surface of the corrugated pipe to be welded is embedded in the inside of the card slot 34, and the card slot 34 is evenly distributed on the edge of the surface of the roller 33. The corrugated protrusion on the surface of the corrugated pipe cooperates with the card slot 34 to move the corrugated pipe to be welded, so that the roller 33 rolls, thereby evenly distributing the three rollers 33 on the surface of the corrugated pipe to be welded to position the corrugated pipe to be welded.

[0043] The hydraulic cylinder 2 is installed horizontally, and the telescopic end of the hydraulic cylinder 2 is fixedly connected to the bottom of the surface of the tripod 31 by screws, and the first limiting ring 32 is installed just above the tripod 31.

[0044] There are three rollers 33 , and the three rollers 33 are evenly distributed along the circumferential direction of the axis of the second limiting ring 42 , and the clamping grooves 34 are evenly distributed on the edges of the surfaces of the rollers 33 .

[0045] The pushing assembly 35 includes a right-angled connecting plate 351, which is fixedly connected to the bottom of the tripod 31 by bolts. A cylindrical wheel 352 is installed on the bottom of the right-angled connecting plate 351 in a rolling manner. A top-moving cone 353 is fixedly connected to the top of the surface of the right-angled connecting plate 351, and the tip of the top-moving cone 353 faces the second limiting ring 42. A tilted pressing member 354 is fixedly installed on the bottom of the surface of the right-angled connecting plate 351, and the tilted pressing member 354 is installed below the top-moving cone 353 and is fixedly installed through the right-angled connecting plate 351. At the bottom of the tripod 31, and by utilizing the fit between the bottom of the outer circumferential surface of the cylindrical wheel 352 and the bottom of the inner cavity of the frame 1, the cylindrical wheel 352 and the right-angled connecting plate 351 can support the tripod 31, making the tripod 31 and the first limiting ring 32 more stable as a whole, and by extending the telescopic end of the hydraulic cylinder 2, a driving force can be applied to the tripod 31 through the telescopic end of the hydraulic cylinder 2, and by utilizing the rolling of the cylindrical wheel 352, the tripod 31 is supported by rolling, which can promote the smooth movement of the tripod 31 and the first limiting ring 32.

[0046] There are two cylindrical wheels 352 , and the two cylindrical wheels 352 are evenly installed at the bottom of the right-angled connecting plate 351 . There are two inclined pressing force members 354 , and the two inclined pressing force members 354 are symmetrically installed along the right-angled connecting plate 351 .

[0047] The second embodiment, based on the first embodiment, see Figures 1 to 7 As shown:

[0048] The fixing mechanism 4 is used to clamp the corrugated pipe material. The fixing mechanism 4 is installed in the middle of the top of the frame 1;

[0049] Among them, the fixing mechanism 4 includes a support leg 41 and a second limiting ring 42. The bottom of the support leg 41 is fixedly installed in the middle of the top of the frame 1. The second limiting ring 42 is fixedly connected to the top of the support leg 41, and the second limiting ring 42 and the first limiting ring 32 are installed at the same height. A strip hole 43 is provided on the side of the outer circular surface of the second limiting ring 42. The inner cavity of the second limiting ring 42 and one end away from the strip hole 43 are fixedly connected with an elastic clip 44. A U-shaped notch 45 is provided in the middle of the surface of the elastic clip 44. The outer circular surface of the second limiting ring 42 is installed with an extrusion module 46 through the strip hole 43. The support leg 41 supports the second limiting ring 42, and the end of the corrugated tube material to be welded passes through the center of the second limiting ring 42, so as to preliminarily position the corrugated tube material.

[0050] There are three strip holes 43 , which are evenly distributed on the outer surface of the second limiting ring 42 . The elastic clips 44 are evenly distributed in the inner cavity of the second limiting ring 42 and at one end away from the strip holes 43 . The elastic clips 44 are installed at an angle.

[0051] The extrusion module 46 includes a connecting ring 461, which is sleeved on the outer cylindrical surface of the second limiting ring 42. The inner side surface of the connecting ring 461 is fixedly connected with a square sliding block 462. The square sliding block 462 is slidably installed between the second limiting ring 42 through the bar hole 43. The end of the square sliding block 462 away from the inner side surface of the second limiting ring 42 is fixedly connected with the extrusion ring 463. A return spring 464 is fixedly connected between the surface of the square sliding block 462 and the inner wall of the bar hole 43. The bottom of the outer cylindrical surface of the connecting ring 461 is fixedly connected with a bending rod 465. The bottom end of the bending rod 465 is provided with a groove 466. As the tripod 31 is pushed to move by the telescopic end of the hydraulic cylinder 2, the tripod 31 drives the right-angle connecting plate 351 to move together , the tip of the pushing cone 353 can be inserted into the interior of the groove 466, so that the bending rod 465 is subjected to a pushing force, and the square sliding block 462 can slide inside the strip hole 43, so that the connecting ring 461 and the extrusion ring 463 move together toward the direction close to the elastic clip 44, and the return spring 464 is compressed, and the edge of the inner side of the extrusion ring 463 fits with the surface of the elastic clip 44, so that the elastic clip 44 is pressed by the extrusion ring 463. As the extrusion ring 463 continues to move, the elastic clip 44 is elastically bent, and the end of the elastic clip 44 away from the inner wall of the second limiting ring 42 can be embedded in the corrugated concave surface of the surface of the bellows material, so that the bellows material can be fixed and clamped.

[0052] The extrusion ring 463 is installed inside the second limiting ring 42 . The extrusion ring 463 and the connecting ring 461 are concentric circles. The return spring 464 is installed in the middle of the inner cavity of the strip hole 43 .

[0053] When the bellows is welded, the hydraulic cylinder 2 is turned on again to work, and the telescopic end of the hydraulic cylinder 2 is used to shrink, so that the tripod 31 is subjected to a pulling force, and the ejecting cone 353 can be driven out from the inside of the groove 466 through the right-angled connecting plate 351, so that the pushing force on the bending rod 465 disappears, and under the elastic force of the reset spring 464, the extrusion ring 463 moves to the end away from the elastic clip 44, so that the extrusion force on the elastic clip 44 disappears, and the elastic clip 44 can be reset by its own elastic force, thereby loosening the bellows and unloading the welded bellows.

[0054] The third embodiment, based on the first and second embodiments, see Figures 1 to 8 As shown:

[0055] The inner cavity of the frame 1 and one end away from the hydraulic cylinder 2 is equipped with a lifting mechanism 5, which includes a U-shaped frame 51. The bottom of the U-shaped frame 51 is fixedly connected to the bottom of the inner cavity of the frame 1. A flat plate 52 is rotatably installed on the top of the U-shaped frame 51. A V-shaped lifting plate 53 is hinged on the top of the flat plate 52 and one end away from the U-shaped frame 51. The inner side of the V-shaped lifting plate 53 is fixedly connected to a limiting card strip 54. The end of the U-shaped frame 51 away from the V-shaped lifting plate 53 is fixedly connected to a strip force plate 55. The strip force plate 55 is installed just below the second limiting ring 42. A rotating rod 56 is rollingly installed on the end of the strip force plate 55 away from the flat plate 52, which drives the inclined pressing force member 354 to approach the strip force plate 55 through the right-angled connecting plate 351. The strip-shaped force-bearing plate 55 drives the V-shaped lifting plate 53 to rotate counterclockwise to adjust the angle, so that the V-shaped lifting plate 53 can be lifted, so that the inner side surface of the V-shaped lifting plate 53 fits with the bottom of the outer circular surface of the corrugated pipe material, and the corrugated pipe material is lifted, so that the longer corrugated pipe material will not be bent and damaged, and the limiting card strip 54 is embedded in the corrugated groove on the surface of the corrugated pipe material, so that the corrugated pipe material can be positioned.

[0056] The opening of the V-shaped lifting plate 53 faces upward, the limiting clips 54 are evenly distributed on the inner side surface of the V-shaped lifting plate 53 , and the strip-shaped force-bearing plate 55 is installed at an angle.

[0057] When in use, the support leg 41 supports the second limiting ring 42. At this time, the staff passes the end of the corrugated pipe material to be welded through the center of the second limiting ring 42 to perform preliminary positioning of the corrugated pipe material.

[0058] The staff will pass the bellows to be welded through the center of the first limiting ring 32, so as to preliminarily limit the position of the bellows to be welded, and the corrugated protrusions on the surface of the bellows to be welded are embedded in the inside of the clamping groove 34, and the clamping groove 34 is evenly distributed on the edge of the surface of the roller 33. The corrugated protrusions on the surface of the bellows can be matched with the clamping groove 34, so that the bellows to be welded can be moved, so that the roller 33 can be rolled, so that the three rollers 33 are evenly distributed on the surface of the bellows to be welded, and the bellows to be welded can be positioned;

[0059] The right-angled connecting plate 351 is fixed to the bottom of the tripod 31, and the bottom of the outer circumference of the cylindrical wheel 352 fits in with the bottom of the inner cavity of the frame 1, so that the cylindrical wheel 352 and the right-angled connecting plate 351 can support the tripod 31, making the tripod 31 and the first limiting ring 32 more stable as a whole. When the telescopic end of the hydraulic cylinder 2 is extended, a driving force can be applied to the tripod 31 through the telescopic end of the hydraulic cylinder 2, and the cylindrical wheel 352 rolls, so that the tripod 31 is supported by rolling, which can promote the smooth movement of the tripod 31 and the first limiting ring 32.

[0060] At the same time, as the tripod 31 is pushed and moved by the telescopic end of the hydraulic cylinder 2, the tripod 31 drives the right-angled connecting plate 351 to move together, and the tip of the pushing cone 353 can be inserted into the inside of the groove 466, so that the bending rod 465 is pushed and the square sliding block 462 can slide inside the strip hole 43, so that the connecting ring 461 and the extrusion ring 463 move together in the direction close to the elastic clamping piece 44, and the return spring 464 is compressed, and the edge of the inner side of the extrusion ring 463 fits the surface of the elastic clamping piece 44, so that the elastic clamping piece 44 is pressed by the extrusion ring 463. As the extrusion ring 463 continues to move, the elastic clamping piece 44 is elastically bent, and the end of the elastic clamping piece 44 away from the inner wall of the second limiting ring 42 is embedded in the corrugated concave surface of the surface of the bellows material, so that the bellows material can be fixed and clamped;

[0061] The right-angled connecting plate 351 drives the inclined pressing member 354 to move toward the side close to the strip-shaped force-bearing plate 55. The inclined teeth at the top of the inclined pressing member 354 apply pressing force to the rotating rod 56. In combination with the rotatable installation between the flat plate 52 and the top of the U-shaped frame 51, the strip-shaped force-bearing plate 55 drives the V-shaped lifting plate 53 to rotate counterclockwise to adjust the angle, so that the V-shaped lifting plate 53 can be raised, so that the inner side surface of the V-shaped lifting plate 53 fits with the bottom of the outer circular surface of the corrugated pipe material, and the corrugated pipe material is lifted, so that the longer corrugated pipe material will not be bent or damaged. The limiting card strip 54 is embedded in the corrugated groove on the surface of the corrugated pipe material, so that the corrugated pipe material can be positioned, and the bellows can be welded around the port where the bellows are connected by external equipment.

[0062] When the bellows is welded, the hydraulic cylinder 2 is turned on again to work, and the telescopic end of the hydraulic cylinder 2 is used to shrink, so that the tripod 31 is subjected to a pulling force, and the ejecting cone 353 can be driven out from the inside of the groove 466 through the right-angled connecting plate 351, so that the pushing force on the bending rod 465 disappears, and under the elastic force of the reset spring 464, the extrusion ring 463 moves to the end away from the elastic clip 44, so that the extrusion force on the elastic clip 44 disappears, and the elastic clip 44 can be reset by its own elastic force, thereby loosening the bellows and unloading the welded bellows.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary clamping device for welding bellows, characterized in that: include: A frame, and a hydraulic cylinder fixedly mounted on a side of the frame surface; A driving mechanism, which is used to limit the position of the corrugated pipe to be welded and apply driving force, and is installed on the side of the top of the frame; Wherein, the driving mechanism includes a tripod and a first limiting ring, which are slidably installed between the bottom of the tripod and the side of the top of the frame, the first limiting ring is fixedly connected to the top of the tripod, a roller is rotatably installed at the edge of the surface of the first limiting ring, a slot is provided at the edge of the roller surface, and a pushing assembly is installed in the middle of the bottom of the tripod; the pushing assembly includes a right-angled connecting plate, which is fixedly connected to the bottom of the tripod by bolts, a cylindrical wheel is rotatably installed at the bottom of the right-angled connecting plate, a jacking cone is fixedly connected to the top of the surface of the right-angled connecting plate, and the tip of the jacking cone faces the second limiting ring, and an inclined pressing force piece is fixedly installed at the bottom of the surface of the right-angled connecting plate, and the inclined pressing force piece is installed below the jacking cone; A fixing mechanism, which is used to clamp the corrugated pipe material and is installed in the middle of the top of the frame; Among them, the fixing mechanism includes a supporting leg and a second limiting ring, the bottom of the supporting leg is fixedly installed in the middle of the top of the frame, the second limiting ring is fixedly connected to the top of the supporting leg, and the second limiting ring and the first limiting ring are installed at the same height, a strip hole is opened on the side of the outer circular surface of the second limiting ring, an elastic clip is fixedly connected to the inner cavity of the second limiting ring and one end away from the strip hole, a U-shaped notch is opened in the middle of the surface of the elastic clip, and an extrusion module is installed on the outer circular surface of the second limiting ring through the strip hole; The extrusion module includes a connecting ring, which is sleeved on the outer circular surface of the second limiting ring. The inner side of the connecting ring is fixedly connected to a square sliding block, which is slidably installed between the square sliding block and the second limiting ring through the strip hole. The end of the square sliding block away from the inner side of the second limiting ring is fixedly connected to the extrusion ring. A return spring is fixedly connected between the surface of the square sliding block and the inner wall of the strip hole. The bottom of the outer circular surface of the connecting ring is fixedly connected to a bending rod, and a groove is provided at the bottom end of the bending rod. The telescopic end of the hydraulic cylinder is fixedly connected to the bottom of the tripod surface by a screw, and a lifting mechanism is installed at the inner cavity of the frame and at one end away from the hydraulic cylinder. The lifting mechanism includes a U-shaped frame, and the bottom of the U-shaped frame is fixedly connected to the bottom of the inner cavity of the frame. A flat plate is rotatably installed on the top of the U-shaped frame, and a V-shaped lifting plate is hinged on the top of the flat plate and at one end away from the U-shaped frame. The inner side surface of the V-shaped lifting plate is fixedly connected to a limiting strip, and a strip force-bearing plate is fixedly connected to the end of the U-shaped frame away from the V-shaped lifting plate. The strip force-bearing plate is installed directly below the second limiting ring, and a rotating rod is rotatably installed on the end of the strip force-bearing plate away from the flat plate.

2. The auxiliary clamping device for welding bellows according to claim 1, characterized in that: The hydraulic cylinder is installed horizontally, and the first limiting ring is installed just above the tripod.

3. The auxiliary clamping device for welding bellows according to claim 1, characterized in that: There are three rollers, and the three rollers are evenly distributed along the circumferential direction of the axis of the second limiting ring, and the clamping grooves are evenly distributed on the edges of the roller surfaces.

4. The auxiliary clamping device for welding bellows according to claim 3, characterized in that: There are two cylindrical wheels, and the two cylindrical wheels are evenly installed on the bottom of the right-angled connecting plate. There are two inclined pressing force pieces, and the two inclined pressing force pieces are symmetrically installed along the right-angled connecting plate.

5. The auxiliary clamping device for welding bellows according to claim 1, characterized in that: There are three strip holes, and the three strip holes are evenly distributed on the outer surface of the second limiting ring. The elastic clamping pieces are evenly distributed in the inner cavity of the second limiting ring and away from one end of the strip holes, and the elastic clamping pieces are installed obliquely.

6. The auxiliary clamping device for welding bellows according to claim 5, characterized in that: The extrusion ring is installed inside the second limiting ring, the extrusion ring and the connecting ring are concentric circles, and the reset spring is installed in the middle of the inner cavity of the strip hole.

7. The auxiliary clamping device for welding bellows according to claim 1, characterized in that: The opening of the V-shaped lifting plate is upward, the limiting clips are evenly distributed on the inner side of the V-shaped lifting plate, and the strip-shaped force-bearing plate is installed obliquely.

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