Welding components for round tube forming

Abstract

The present invention provides a welding assembly for round tube forming, which belongs to the technical field of round tube production equipment. It includes a frame, an upper roller module is arranged on the frame, a lower roller module and two side roller modules are arranged below and on both sides of the upper roller module, a lower roller body with a central axis parallel to the bottom surface is arranged in the lower roller module, and a side roller body with a central axis perpendicular to the bottom surface is arranged in the side roller module. The upper roller module cooperates with the side roller module to drive the second upper roller body seat to move horizontally, so that the weld on the pipe can be driven to align with the welding machine, the upper roller module and the lower roller module cooperate to drive the pipe to move in the vertical direction, so that the distance between the pipe weld and the welding machine can be adjusted, and the error between the weld and the welding machine can be corrected in time by timely adjusting the position between the pipe weld and the welding machine in the vertical and horizontal directions, so as to achieve the purpose of improving welding efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of round tube production equipment and relates to a welding assembly for round tube forming. Background Art

[0002] Round tube refers to steel with two ends open and a hollow concentric cross section, and a large ratio of length to circumference. It can be used for pipelines, thermal equipment, mechanical industry, petroleum geological drilling, containers, chemical industry and special purposes. Round tubes can be divided into seamless round tubes and welded round tubes according to the production method. At present, the production line of welded round tubes generally forms round tubes by continuous extrusion and deformation of the plate through multiple extrusion rollers, and finally connects the round tubes by welding. When welding round tubes, it is necessary to position the round tubes and shape the welds, so that the welding is accurate and the quality of the pipes can be improved. However, the equipment that can clamp and position the pipes and shape the welds in the existing technology has poor flexibility and cannot be adjusted in time during welding, which leads to reduced welding efficiency of the pipes. Summary of the invention

[0003] The object of the present invention is to provide a welding assembly for round tube forming in view of the above problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A welding assembly for round tube forming comprises a frame, an upper roller module is arranged on the frame, a lower roller module and two side roller modules are arranged below and on both sides of the upper roller module respectively, a lower roller body whose central axis is parallel to the bottom surface is arranged in the lower roller module, a side roller body whose central axis is perpendicular to the bottom surface is arranged in the side roller module, the central axes of the lower roller body and the side roller body are located in the same plane, the upper roller module comprises an upper roller body No. 1 which is staggered with the lower roller body and the side roller body, and an upper roller body No. 2 which is arranged directly above the lower roller body, and the upper roller body No. 1, the lower roller body and the two side roller bodies are combined to form a positioning cavity.

[0006] In the above-mentioned welding assembly for round tube forming, the upper roller module also includes an upper roller body seat No. 1 arranged on the frame, the upper roller body seat No. 1 is provided with an upper roller body shaft No. 1 whose axis center line is flush with the bottom surface, the upper roller body No. 1 is sleeved on the upper roller body shaft No. 1, a first bearing is respectively provided between the two ends of the upper roller body shaft and the upper roller body No. 1, and the two ends of the upper roller body shaft No. 1 are also respectively sleeved with an annular baffle No. 1 inserted into the upper roller body, the annular baffle No. 1 is connected to the upper roller body No. 1 by bolts, the inner end of the inner ring of the first bearing abuts against the upper roller body No. 1, and the outer end of the outer ring of the first bearing abuts against the annular baffle No. 1.

[0007] In the above-mentioned welding assembly for round tube forming, the upper roller module also includes a connecting block and a No. 2 upper roller body seat arranged on the frame, the No. 2 upper roller body seat and the connecting block are movably connected through a slider rail structure, and a translation mechanism capable of adjusting the horizontal position of the No. 2 upper roller body seat is provided between the No. 2 upper roller body seat and the connecting block, and two symmetrically arranged No. 2 upper roller bodies are provided on the No. 2 upper roller body seat, and a reserved gap is provided between the two No. 2 upper roller bodies, the No. 2 upper roller body is connected to the No. 2 upper roller body seat through a lower connecting seat, and the lower connecting seat is located on the outer end of the No. 2 upper roller body, and an independent driving mechanism capable of driving the No. 2 upper roller body to rise and fall in the vertical direction is provided between each No. 2 upper roller body and the No. 2 upper roller body seat;

[0008] The translation mechanism comprises a transverse slide rail arranged transversely on the connecting block, a limit slider slidably matched with the transverse slide rail is also arranged on the No. 2 upper roller body seat, a driving plate is also arranged on the connecting block, and a translation driving rod arranged transversely and threadedly connected to the driving plate is also arranged on the driving plate, the end of the translation driving rod passes through the driving plate and is rotationally connected to the No. 2 upper roller body seat, and a hand wheel is connected to the end of the translation driving rod away from the No. 2 upper roller body seat;

[0009] The independent driving mechanism comprises a turbine-worm mechanism arranged on the top of the No. 2 upper roller body seat, the lower end of the lifting worm in the turbine-worm mechanism is axially fixedly connected to the lower connecting seat for circumferential rotation, the lower connecting seat is L-shaped and arranged in the vertical stroke groove, the inner side of the lower connecting seat is provided with a lower positioning block fixedly connected to the No. 2 upper roller body seat, and a connecting structure is also provided between the No. 2 upper roller body seat and the lower connecting seat, the connecting structure comprises a connecting groove which is recessed inwardly and arranged on the top of the lower connecting seat, a lower connecting block with a T-shaped cross-section is inserted into the connecting groove, the top of the lower connecting block is axially fixedly connected to the lifting worm for circumferential rotation, and the lower connecting seat is also provided with a fixing pin shaft which passes through the side wall of the connecting groove and the lower connecting block in the horizontal direction and abuts against the side wall of the lower positioning block.

[0010] In the above-mentioned welding assembly for round tube forming, two No. 2 upper roller shafts symmetrically arranged along the center line of the lower connecting seat are also provided in the lower connecting seat, the inner end of the No. 2 upper roller body is fixed to the inner end of the No. 2 upper roller body shaft by a pressure plate and screws, the outer end of the No. 2 upper roller body shaft is connected to the lower connecting seat and three second bearings are provided at the connection, the No. 2 upper roller body shaft is also sleeved with a top sleeve, the top sleeve and the No. 2 upper roller body shaft are circumferentially limited by a key structure, the inner end of the top sleeve abuts against the No. 2 upper roller body, the outer end of the top sleeve abuts against the inner end of the inner ring of the innermost second bearing, and the inner end of the innermost second bearing outer ring abuts Leaning on the lower connecting seat, each two second bearings are provided with an outer top ring and an inner top ring, the two ends of the outer top ring respectively rest on the outer rings of the two second bearings, and the two ends of the inner top ring respectively rest on the inner rings of the two second bearings, the No. 2 upper roller body shaft is also threaded with a screw nut, the inner end of the shaft nut rests on the outer end surface of the inner ring of the outermost second bearing through a blocking ring, the lower connecting seat is connected with a baffle plate by bolts, the baffle plate rests on the outer end surface of the outer ring of the outermost second bearing, the No. 2 upper roller body shaft is also provided with a No. 1 oil pipeline, and the outer end of the No. 1 oil pipeline is provided with a plug.

[0011] In the above-mentioned welding assembly for round tube forming, the frame is also provided with two columns symmetrically arranged along the frame, a cross beam is sleeved on the two columns, the connecting block is fixed on the side wall of the cross beam, the top of the cross beam is axially fixed and circumferentially rotatably connected with a vertically arranged No. 1 worm gear, the frame is also provided with a No. 1 driver, the No. 1 driver has a horizontally arranged and rotatable output shaft, the end of the output shaft of the No. 1 driver is connected to a turbine, the turbine is meshed with the No. 1 worm gear, the No. 1 upper roller seat and the connecting block are both connected to the cross beam.

[0012] In the above-mentioned welding assembly for round tube forming, the lower roller module also includes a lower roller seat arranged on the frame, and the lower roller seat is movably connected to the frame through a slider and slide rail structure, and the lower roller seat is provided with a lower roller body shaft whose axis center line is flush with the bottom surface, and the lower roller body is sleeved on the lower roller body shaft, and a third bearing is respectively provided between the two ends of the lower roller body shaft and the lower roller body, and the two ends of the lower roller body shaft are also respectively sleeved with a No. 2 annular baffle plate inserted into the lower roller body, and the No. 2 annular baffle plate is connected to the lower roller body by bolts, and the inner end of the inner ring of the third bearing abuts against the lower roller body, and the outer end of the outer ring of the third bearing abuts against the No. 2 annular baffle plate.

[0013] In the above-mentioned welding assembly for round tube forming, a No. 2 drive is also provided on the frame, and the No. 2 drive has a horizontally arranged and rotatable output shaft. A turbine is connected to the output shaft of the No. 2 drive, and the turbine is meshedly connected to a vertically arranged No. 2 worm gear, and the No. 2 worm gear is rotatably connected to the lower roller seat.

[0014] In the above-mentioned welding assembly for round tube forming, the side roller module also includes side roller seats fixedly connected to both sides of the lower roller seat, the side roller seat is provided with a side roller body shaft whose axis center line is flush with the bottom surface, the side roller body is sleeved on the side roller body shaft, and a fourth bearing is respectively provided between the two ends of the side roller body shaft and the side roller body, and the two ends of the side roller body shaft are also respectively sleeved with a No. 3 annular baffle plate inserted into the side roller body, the No. 3 annular baffle plate is connected to the side roller body by bolts, the inner end of the inner ring of the fourth bearing abuts against the side roller body, and the outer end of the outer ring of the fourth bearing abuts against the No. 3 annular baffle plate.

[0015] In the above-mentioned welding assembly for round tube forming, a No. 3 drive is also provided on the frame, and the No. 3 drive has a vertically arranged and rotatable output shaft. The output shaft of the No. 3 drive is connected with a turbine, and the turbine is meshingly connected with a horizontally arranged No. 3 worm gear, and the No. 3 worm gear is rotatably connected with the side roller seat.

[0016] In the above-mentioned welding assembly for round tube forming, the upper roller body No. 1, the upper roller body No. 2, the lower roller body and the two side roller bodies are all provided with annular arc surfaces, and the outer diameters of the upper roller body No. 1, the upper roller body No. 2, the lower roller body and the two side roller bodies gradually increase from the middle to the two ends.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. The positioning cavity formed by the No. 1 upper roller body in the upper roller module, the lower roller body in the lower roller module and the two side roller bodies in the two side roller modules can position the pipe. The staggered distribution of the No. 1 upper roller body and the lower roller body and the two side roller bodies can increase the distance for positioning the pipe, thereby improving the overall positioning effect of the pipe. The No. 2 upper roller body, the lower roller body and the two side roller bodies can shape the weld of the pipe. Secondly, the upper roller module cooperates with the side roller module to drive the No. 2 upper roller body seat to move horizontally, thereby driving the weld on the pipe to align with the welding machine. The upper roller module and the lower roller module cooperate to drive the pipe to move in the vertical direction, thereby adjusting the distance between the pipe weld and the welding machine. By timely adjusting the position between the pipe weld and the welding machine in the vertical and horizontal directions, the error between the weld and the welding machine can be corrected in time, thereby achieving the purpose of improving welding efficiency.

[0019] 2. The two symmetrically arranged No. 2 upper rollers on the No. 2 upper roller seat can shape the weld of the pipe. The size of the pipe weld can be adjusted by adjusting the reserved gap between the two No. 2 upper rollers. The translation mechanism can drive the No. 2 upper roller seat to move horizontally through the slider rail structure on the connecting block, so as to cooperate with the side roller module to drive the weld on the pipe to align with the welding machine. The independent driving mechanism can drive the No. 2 upper roller to rise and fall in the vertical direction, so as to cooperate with the lower roller module to timely adjust the distance between the pipe weld and the welding machine, so as to timely adjust the position between the pipe weld and the welding machine in the vertical and horizontal directions, thereby improving the welding efficiency.

[0020] 3. Turning the hand wheel can drive the driving rod to rotate, thereby cooperating with the driving plate to drive the No. 2 upper roller seat to move horizontally along the horizontal slide rail, so that the position between the weld on the pipe and the welding machine can be quickly adjusted to align the weld and the welding machine, thereby improving welding efficiency.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the front view provided by the present invention;

[0023] Figure 2 is a side view of the present invention;

[0024] Figure 3 is a top view of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the lower roller body and the side roller body;

[0026] Figure 5 It is a schematic diagram of the structure of the No. 2 upper roller;

[0027] Figure 6 It is a schematic diagram of the structure of the No. 1 upper roller.

[0028] In the figure, frame 1, upper roller module 2, side roller module 3, lower roller module 4, lower roller body 5, side roller body 6, No. 1 upper roller body 7, No. 2 upper roller body 8, positioning cavity 9, reserved gap 10, No. 1 upper roller body seat 11, No. 1 upper roller body shaft 12, first bearing 13, No. 1 annular baffle 14, No. 2 upper roller body seat 15, No. 2 upper roller body shaft 16, second bearing 17, top sleeve 18, outer top ring 19, inner top ring 20, screw nut 21, blocking ring 22, baffle 23, No. 1 oil pipeline 24, crossbeam 25, No. 1 worm 26, No. 1 driver 27, lower roller seat 28, lower roller body shaft 29, third bearing 3 0, No. 2 annular baffle 31, No. 2 driver 32, No. 2 worm 33, side roller seat 34, side roller body shaft 35, fourth bearing 36, No. 3 annular baffle 37, No. 3 driver 38, No. 3 worm 39, independent drive mechanism 101, translation mechanism 102, turbine worm mechanism 104, lifting worm 105, connecting structure 106, column 107, lower connecting seat 108, vertical stroke groove 109, lower positioning block 110, connecting groove 111, lower connecting block 112, fixing pin shaft 113, connecting block 114, drive plate 115, translation drive rod 116, hand wheel 117, pressure plate 120. DETAILED DESCRIPTION

[0029] like Figure 1-Figure 6 As shown, a welding assembly for round tube forming includes a frame 1, an upper roller module 2 is provided on the frame 1, a lower roller module 4 and two side roller modules 3 are respectively provided below and on both sides of the upper roller module 2, a lower roller body 5 whose central axis is parallel to the bottom surface is provided in the lower roller module 4, a side roller body 6 whose central axis is perpendicular to the bottom surface is provided in the side roller module 3, the central axes of the lower roller body 5 and the side roller body 6 are located in the same plane, the upper roller module 2 includes an upper roller body No. 1 7 which is staggered with the lower roller body 5 and the side roller body 6, and an upper roller body No. 2 8 which is arranged directly above the lower roller body 5, and the upper roller body No. 1 7, the lower roller body 5 and the two side roller bodies 6 are combined to form a positioning cavity 9.

[0030] In this embodiment, the positioning cavity 9 formed by the No. 1 upper roller body 7 in the upper roller module 2, the lower roller body 5 in the lower roller module 4 and the two side roller bodies 6 in the two side roller modules 3 can position the pipe. The staggered distribution of the No. 1 upper roller body 7 and the lower roller body 5 and the two side roller bodies 6 can increase the distance for positioning the pipe, thereby improving the overall positioning effect of the pipe. The No. 2 upper roller body 8, the lower roller body 5 and the two side roller bodies 6 cooperate to shape the weld of the pipe. Secondly, the upper roller module 2 cooperates with the side roller module to drive the No. 2 upper roller body seat 15 to move horizontally, thereby driving the weld on the pipe to align with the welding machine. The upper roller module 2 cooperates with the lower roller module to drive the pipe to move in the vertical direction, thereby adjusting the distance between the pipe weld and the welding machine. By timely adjusting the position between the pipe weld and the welding machine from the vertical and horizontal directions, the error between the weld and the welding machine can be corrected in time, thereby achieving the purpose of improving welding efficiency.

[0031] The upper roller module 2 also includes an upper roller body seat No. 1 11 arranged on the frame 1, and the upper roller body seat No. 1 1 is provided with an upper roller body shaft 12 whose axis line is flush with the bottom surface, and the upper roller body No. 1 7 is sleeved on the upper roller body shaft 12, and a first bearing 13 is respectively provided between the two ends of the upper roller body shaft 12 and the upper roller body 7, and the two ends of the upper roller body shaft 12 are also respectively sleeved with a No. 1 annular baffle 14 inserted into the upper roller body 7, and the No. 1 annular baffle 14 is connected to the upper roller body 7 by bolts, and the inner end of the inner ring of the first bearing 13 abuts against the upper roller body 7, and the outer end of the outer ring of the first bearing 13 abuts against the No. 1 annular baffle 14.

[0032] In this embodiment, combined with Figure 6 As shown, the two first bearings 13 abut against the No. 1 upper roller body 7 to limit the No. 1 upper roller body 7 and prevent it from loosening. The No. 1 annular baffle 14 can fix the first bearing 13. The No. 1 upper roller body 7 is connected by bolts to facilitate the disassembly and maintenance of the No. 1 upper roller body 7.

[0033] The upper roller module 2 also includes a connecting block 114 and a No. 2 upper roller body seat 15 arranged on the frame 1, the No. 2 upper roller body seat 15 and the connecting block 114 are movably connected through a slider and slide rail structure, and a translation mechanism 102 capable of adjusting the lateral horizontal position of the No. 2 upper roller body seat 15 is provided between the No. 2 upper roller body seat 15 and the connecting block 114, and two symmetrically arranged No. 2 upper roller bodies 8 are provided on the No. 2 upper roller body seat 15, and a reserved gap 10 is provided between the two No. 2 upper roller bodies 8, and the No. 2 upper roller body 8 is connected to the No. 2 upper roller body seat 15 through a lower connecting seat 108, and the lower connecting seat 108 is located on the outer end of the No. 2 upper roller body 8, and an independent driving mechanism 101 capable of driving the No. 2 upper roller body 8 to rise and fall in the vertical direction is provided between each No. 2 upper roller body 8 and the No. 2 upper roller body seat 15.

[0034] In this embodiment, combined with Figure 1-Figure 3 , Figure 5 As shown, the two symmetrically arranged No. 2 upper roller bodies 8 on the No. 2 upper roller body seat 15 can shape the weld of the pipe, and the size of the weld of the pipe can be adjusted by adjusting the size of the reserved gap 10 between the two No. 2 upper roller bodies 8. The translation mechanism 102 can drive the No. 2 upper roller body seat 15 to move horizontally through the slider and rail structure on the connecting block 114, so as to cooperate with the side roller module to drive the weld on the pipe to be aligned with the welding machine. The independent driving mechanism 101 can drive the No. 2 upper roller body 8 to rise and fall in the vertical direction, so as to cooperate with the lower roller module to timely adjust the distance between the pipe weld and the welding machine, so as to timely adjust the position between the pipe weld and the welding machine from the vertical and horizontal directions, thereby improving the welding efficiency.

[0035] The translation mechanism 102 includes a transverse slide rail arranged horizontally on the connecting block 114, and a limit slider slidingly matched with the transverse slide rail is also arranged on the No. 2 upper roller body seat 15. A driving plate 115 is also arranged on the connecting block 114, and a translation driving rod 116 arranged horizontally and threadedly connected to the driving plate 115 is also arranged on the driving plate 115. The end of the translation driving rod 116 passes through the driving plate 115 and is rotationally connected to the No. 2 upper roller body seat 15. The end of the translation driving rod 116 away from the No. 2 upper roller body seat 15 is connected to a hand wheel 117.

[0036] In this embodiment, combined with Figure 1-Figure 3 , Figure 5 As shown, rotating the hand wheel 117 can drive the driving rod 116 to rotate, thereby cooperating with the driving plate 115 to drive the second upper roller seat 15 to move horizontally along the horizontal slide rail, so that the position between the weld on the pipe and the welding machine can be quickly adjusted to align the weld and the welding machine, thereby improving welding efficiency.

[0037] The independent driving mechanism 101 includes a worm gear mechanism 104 disposed on the top of the second upper roller body seat 15 , and the lower end of the lifting worm 105 in the worm gear mechanism 104 is axially fixedly connected to the lower connecting seat 108 in a circumferentially rotatable manner.

[0038] In this embodiment, combined with Figure 5 As shown, the turbine worm mechanism 104 includes a lifting worm 105 driven by a servo motor. The servo motor is connected to the lifting worm 105 through a turbine. The servo motor can drive the lower connecting seat 108 to rise and fall vertically through the lifting worm 105, thereby driving the second upper roller 8 to rise and fall vertically, adjusting the position between the pipe weld and the welding machine, thereby improving welding efficiency.

[0039] The lower connecting seat 108 is L-shaped and is arranged in a vertical travel groove 109 . A lower positioning block 110 fixedly connected to the second upper roller seat 15 is provided on the inner side of the lower connecting seat 108 . A connecting structure 106 is also provided between the second upper roller seat 15 and the lower connecting seat 108 .

[0040] In this embodiment, combined with Figure 5 As shown, the lower positioning block on the second upper roller body seat 15 cooperates with the vertical travel groove 109 to limit the lower connecting seat 108 to prevent the lower connecting seat from deviating during movement.

[0041] The connecting structure 106 includes an inwardly recessed connecting groove 111 arranged at the top of the lower connecting seat 108, and a lower connecting block 112 with a T-shaped cross-section is inserted into the connecting groove 111. The top of the lower connecting block 112 is axially fixedly connected to the lifting worm 105 for circumferential rotation. The lower connecting seat 108 is also provided with a fixed pin shaft 113 which passes through the side wall of the connecting groove 111 and the lower connecting block 112 in the transverse direction and abuts against the side wall of the lower positioning block 110.

[0042] In this embodiment, combined with Figure 5 As shown, when the lifting worm 105 rotates, it can drive the lower connecting block 112 to lift vertically, thereby driving the second upper roller body 8 to lift vertically, adjusting the position between the pipe weld and the welding machine, and improving the welding efficiency. The fixed pin shaft 113 can fix the lower connecting block 112 and the lower connecting seat 108. The fixing of the fixed pin shaft can facilitate the disassembly and maintenance of the lower connecting seat.

[0043] The lower connecting seat 108 is also provided with two No. 2 upper roller shafts 16 symmetrically arranged along the center line of the lower connecting seat 108. The inner end of the No. 2 upper roller 8 is fixed to the inner end of the No. 2 upper roller shaft 16 by a pressure plate 120 and screws. The outer end of the No. 2 upper roller shaft 16 is connected to the lower connecting seat 108 and three second bearings 17 are provided at the connection.

[0044] In this embodiment, combined with Figure 5 As shown, the inner end of the No. 2 upper roller body 8 is fixed to the No. 2 upper roller body shaft 16 by a pressing plate 120 and screws, so that the No. 2 upper roller body 8 can be easily disassembled and repaired.

[0045] A pressure plate groove is provided on the inner side of the No. 2 upper roller body 8, and the pressure plate 120 is inserted into the pressure plate groove and the outer wall of the pressure plate 120 abuts against the inner wall of the pressure plate groove. The screws pass through the pressure plate 120 and are inserted into the No. 2 upper roller body shaft 16 to fix the pressure plate 120 and the No. 2 upper roller body shaft 16, thereby fixing the inner end of the No. 2 upper roller body 8 and the inner end of the No. 2 upper roller body shaft 16.

[0046] The second upper roller shaft 16 is also provided with a top sleeve 18, and the top sleeve 18 and the second upper roller shaft 16 are circumferentially limited by a key structure, the inner end of the top sleeve 18 abuts against the second upper roller 8, the outer end of the top sleeve 18 abuts against the inner end of the inner ring of the innermost second bearing 17, and the inner end of the outer ring of the innermost second bearing 17 abuts against the lower connecting seat 108, and each of the two second bearings 17 is provided with an outer top ring 19 and an inner top ring 20, and the two ends of the outer top ring 19 are divided into The two ends of the inner top ring 20 respectively abut against the inner rings of the two second bearings 17, and the two ends of the inner top ring 20 respectively abut against the inner rings of the two second bearings 17. The second upper roller shaft 16 is also threaded with a screw nut 21, and the inner end of the shaft nut 21 abuts against the outer end surface of the inner ring of the outermost second bearing 17 through a blocking ring 22. The lower connecting seat 108 is connected with a baffle plate 23 by bolts, and the baffle plate 23 abuts against the outer end surface of the outer ring of the outermost second bearing 17. The second upper roller shaft 16 is also provided with a first oil pipeline 24, and the outer end of the first oil pipeline 24 is provided with a plug.

[0047] In this embodiment, combined with Figure 5 As shown, the top sleeve 18 which is circumferentially limited with the No. 2 upper roller shaft 16 by a key structure can cooperate with the pressure plate 120 to limit the No. 2 upper roller shaft to prevent it from sliding left and right, the outer top ring 19 and the inner top ring 20 can limit the distance between the two left bearings, and can also cooperate with the top sleeve, blocking ring and baffle 23 to limit the three second bearings to prevent the bearings from loosening, the No. 1 oil pipeline 24 can facilitate oiling of the bearings, and the detachable setting of the plug can also facilitate installation and disassembly.

[0048] The frame 1 is also provided with two columns 107 symmetrically arranged along the frame 1, and a crossbeam 25 is sleeved on the two columns 107. The connecting block 114 is fixed on the side wall of the crossbeam 25. The top of the crossbeam 25 is axially fixed and circumferentially rotatably connected with a vertically arranged No. 1 worm gear 26. The frame 1 is also provided with a No. 1 driver 27, and the No. 1 driver 27 has a horizontally arranged and rotatable output shaft. The output shaft end of the No. 1 driver 27 is connected to a turbine, which is meshed with the No. 1 worm gear 26. The No. 1 upper roller seat 11 and the connecting block 114 are both connected to the crossbeam 25.

[0049] In this embodiment, combined with Figure 1-Figure 3 As shown, the crossbeam 25 is sleeved on the column, and the column can limit the crossbeam 25. The No. 1 driver 27 can drive the No. 1 worm 26 to rotate through the turbine. The No. 1 worm 26 can drive the crossbeam 25 to rise and fall in the vertical direction, thereby driving the No. 1 upper roller body and the No. 2 upper roller body to rise and fall synchronously, so that the No. 1 upper roller body and the No. 2 upper roller body can cooperate with the lower roller module to drive the pipe to move up and down.

[0050] The lower roller module 4 also includes a lower roller seat 28 arranged on the frame 1. The lower roller seat 28 shown is movably connected to the frame 1 through a slider rail structure. The lower roller seat 28 is provided with a lower roller body shaft 29 whose axis center line is flush with the bottom surface. The lower roller body 5 is sleeved on the lower roller body shaft 29. A third bearing 30 is respectively provided between the two ends of the lower roller body shaft 29 and the lower roller body 5. The two ends of the lower roller body shaft 29 are also respectively sleeved with a second annular baffle 31 inserted into the lower roller body 5. The second annular baffle 31 is connected to the lower roller body 5 by bolts. The inner end of the inner ring of the third bearing 30 abuts against the lower roller body 5, and the outer end of the outer ring of the third bearing 30 abuts against the second annular baffle 31.

[0051] In this embodiment, combined with Figure 4 As shown, the slider rail structure includes a slide rail arranged horizontally on the frame 1 and a slider arranged at the bottom of the lower roller seat 28 and slidingly cooperating with the slide rail. When the side roller module cooperates with the translation mechanism to drive the pipe to move horizontally, it can drive the lower roller seat 28 to move horizontally along the slide rail. The two third bearings 30 abut against the lower roller body 5 to limit the lower roller body 5 to prevent it from loosening. The No. 2 annular baffle plate 31 can fix the third bearing 30. The No. 2 annular baffle plate 31 is connected by bolts to facilitate the disassembly and maintenance of the lower roller body 5.

[0052] The frame 1 is also provided with a No. 2 driver 32, which has a horizontally arranged and rotatable output shaft. The output shaft of the No. 2 driver 32 is connected with a turbine, which is meshedly connected with a vertically arranged No. 2 worm 33. The No. 2 worm 33 is rotatably connected to the lower roller seat 28.

[0053] In this embodiment, combined with Figure 1-Figure 6 As shown, the No. 2 driver 32 can drive the No. 2 worm gear 33 to rotate through the turbine, and the No. 2 worm gear 33 can drive the lower roller seat 28 to rise and fall in the vertical direction, thereby cooperating with the upper roller module to drive the pipe to rise and fall synchronously. The movement of the lower roller seat 28 can also drive the side roller module 3 to move up and down, thereby driving the pipe to move up and down.

[0054] The side roller module 3 also includes a side roller seat 34 fixedly connected to both sides of the lower roller seat 28. The side roller seat 34 is provided with a side roller body shaft 35 whose axis center line is flush with the bottom surface. The side roller body 3 is sleeved on the side roller body shaft 35. A fourth bearing 36 is respectively provided between the two ends of the side roller body shaft 35 and the side roller body 3. The two ends of the side roller body shaft 35 are also respectively sleeved with a third annular baffle 37 inserted into the side roller body 3. The third annular baffle 37 is connected to the side roller body 3 by bolts. The inner end of the inner ring of the fourth bearing 36 abuts against the side roller body 3, and the outer end of the outer ring of the fourth bearing 36 abuts against the third annular baffle 37.

[0055] In this embodiment, combined with Figure 4As shown, the side roller seat 34 is fixedly connected to the lower roller seat 28, so that when the lower roller seat 28 moves, the side roller body on the side roller seat 34 can be driven to move up and down, and the two fourth bearings 36 abut against the side roller body 3 to limit the side roller body 3 and prevent it from loosening. The No. 3 annular baffle plate 37 can fix the fourth bearing 36, and the No. 3 annular baffle plate 37 can be conveniently disassembled and maintained by bolt connection to facilitate the side roller body 3.

[0056] The frame 1 is also provided with a No. 3 driver 38, which has a vertically arranged and rotatable output shaft. The output shaft of the No. 3 driver 38 is connected with a turbine, which is meshedly connected with a horizontally arranged No. 3 worm gear 39. The No. 3 worm gear 39 is rotatably connected to the side roller seat 34.

[0057] In this embodiment, combined with Figure 1-Figure 6 As shown, the third driver 38 can drive the third worm 39 to rotate through the turbine, and the third worm 39 can drive the lower roller seat 28 and the side roller seat 34 to move laterally, thereby cooperating with the translation mechanism to drive the pipe to move synchronously.

[0058] The No. 1 upper roller body 7, the No. 2 upper roller body 8, the lower roller body 5 and the two side roller bodies 6 are all provided with annular arc surfaces, and the outer diameters of the No. 1 upper roller body 7, the No. 2 upper roller body 8, the lower roller body 5 and the two side roller bodies 6 gradually increase from the middle to the two ends.

[0059] In this embodiment, combined with Figure 1-Figure 6 As shown, the annular arc surface is matched with the pipe and can position the pipe and shape the weld.

[0060] The working principle of the present invention is: the positioning cavity 9 formed by the No. 1 upper roller body 7 in the upper roller module 2, the lower roller body 5 in the lower roller module 4 and the two side roller bodies 6 in the two side roller modules 3 can position the pipe, the staggered distribution of the No. 1 upper roller body 7 and the lower roller body 5 and the two side roller bodies 6 can increase the distance for positioning the pipe, thereby improving the overall positioning effect of the pipe, the No. 2 upper roller body 8, the lower roller body 5 and the two side roller bodies 6 cooperate to shape the weld of the pipe, secondly, the upper roller module 2 cooperates with the side roller module to drive the No. 2 upper roller body seat 15 to move horizontally, thereby driving the weld on the pipe to align with the welding machine, and the upper roller module 2 cooperates with the lower roller module to drive the pipe to move in the vertical direction, thereby adjusting the distance between the pipe weld and the welding machine. By timely adjusting the position between the pipe weld and the welding machine in the vertical and horizontal directions, the error between the weld and the welding machine can be corrected in time to achieve the purpose of improving welding efficiency. The two symmetrically arranged No. 2 upper roller bodies 8 on the No. 2 upper roller body seat 15 can shape the weld of the pipe. By adjusting the size of the reserved gap 10 between the two No. 2 upper roller bodies 8, the size of the pipe weld can be adjusted. The translation mechanism 102 can drive the No. 2 upper roller body seat 15 to move horizontally through the slider rail structure on the connecting block 114, so as to cooperate with the side roller module to drive the weld on the pipe to align with the welding machine. The independent driving mechanism 101 can drive the No. 2 upper roller body 8 to rise and fall in the vertical direction, so as to cooperate with the lower roller module to timely adjust the distance between the pipe weld and the welding machine, so as to The position between the pipe weld and the welding machine can be adjusted in time from the vertical and horizontal directions to improve the welding efficiency. Turning the hand wheel 117 can drive the driving rod 116 to rotate, thereby cooperating with the driving plate 115 to drive the No. 2 upper roller body seat 15 to move horizontally along the horizontal slide rail, so that the position between the weld on the pipe and the welding machine can be quickly adjusted to align the weld and the welding machine, thereby improving the welding efficiency. The turbine worm mechanism 104 includes a lifting worm 105 driven by a servo motor. The servo motor is connected to the lifting worm 105 through a turbine. The servo motor can drive the lower connecting seat 108 to rise and fall vertically through the lifting worm 105, thereby driving the No. 2 upper roller body 8 to rise and fall vertically, and the position between the pipe weld and the welding machine is improved. The No. 2 upper roller body seat 15 The lower positioning block cooperates with the vertical stroke groove 109 to limit the lower connecting seat 108 to prevent the lower connecting seat from shifting during movement. When the lifting worm 105 rotates, it can drive the lower connecting block 112 to rise and fall vertically, thereby driving the No. 2 upper roller body 8 to rise and fall vertically, adjusting the position between the pipe weld and the welding machine to improve welding efficiency. The fixed pin 113 can fix the lower connecting block 112 and the lower connecting seat 108. The fixed pin fixation can facilitate the disassembly and maintenance of the lower connecting seat. The crossbeam 25 is sleeved on the column, and the column can limit the crossbeam 25. The No. 1 driver 27 can drive the No. 1 worm 26 to rotate through the turbine. The No. 1 worm 26 can drive the crossbeam 25 to rise and fall in the vertical direction, thereby driving the No. 1 upper roller body and the No. 2 upper roller body to rise and fall synchronously.The No. 1 upper roller body and the No. 2 upper roller body can cooperate with the lower roller module to drive the pipe to move up and down. The slider slide rail structure includes a slide rail arranged horizontally on the frame 1 and a slider arranged at the bottom of the lower roller seat 28 and slidingly cooperating with the slide rail. When the side roller module cooperates with the translation mechanism to drive the pipe to move horizontally, it can drive the lower roller seat 28 to move horizontally along the slide rail. The two third bearings 30 abut against the lower roller body 5 to limit the lower roller body 5 to prevent it from loosening. The No. 2 annular baffle plate 31 can fix the third bearing 30. The No. 2 annular baffle plate 31 is connected by bolts to facilitate the disassembly and maintenance of the lower roller body 5. The No. 2 driver 32 can drive the No. 2 worm 33 to rotate through the turbine. The No. 2 worm 33 can drive the lower roller seat 28 to rise and fall in the vertical direction so as to Cooperating with the upper roller module to drive the pipe to rise and fall synchronously, the movement of the lower roller seat 28 can also drive the side roller module 3 to move up and down, thereby driving the pipe to move up and down. The side roller seat 34 is fixedly connected to the lower roller seat 28, so that when the lower roller seat 28 moves, the side roller body on the side roller seat 34 can be driven to move up and down. The two fourth bearings 36 abut against the side roller body 3 to limit the side roller body 3 to prevent it from loosening. The third annular baffle 37 can fix the fourth bearing 36. The third annular baffle 37 is connected by bolts to facilitate the disassembly and maintenance of the side roller body 3. The third driver 38 can drive the third worm 39 to rotate through the turbine. The third worm 39 can drive the lower roller seat 28 and the side roller seat 34 to move horizontally, thereby cooperating with the translation mechanism to drive the pipe to move synchronously.

[0061] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0062] Although this article uses more frame 1, upper roller module 2, side roller module 3, lower roller module 4, lower roller body 5, side roller body 6, No. 1 upper roller body 7, No. 2 upper roller body 8, positioning cavity 9, reserved gap 10, No. 1 upper roller body seat 11, No. 1 upper roller body shaft 12, first bearing 13, No. 1 annular baffle 14, No. 2 upper roller body seat 15, No. 2 upper roller body shaft 16, second bearing 17, top sleeve 18, outer top ring 19, inner top ring 20, screw nut 21, blocking ring 22, baffle 23, No. 1 oil pipeline 24, crossbeam 25, No. 1 worm 26, No. 1 driver 27, lower roller seat 28, lower roller body shaft 29, third bearing 30, No. 2 annular The terms baffle 31, No. 2 driver 32, No. 2 worm 33, side roller seat 34, side roller body shaft 35, fourth bearing 36, No. 3 annular baffle 37, No. 3 driver 38, No. 3 worm 39, independent drive mechanism 101, translation mechanism 102, worm gear mechanism 104, lifting worm 105, connection structure 106, column 107, lower connection seat 108, vertical travel groove 109, lower positioning block 110, connection groove 111, lower connection block 112, fixed pin 113, connection block 114, drive plate 115, translation drive rod 116, hand wheel 117, pressure plate 120, etc., but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention, and interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A welding assembly for forming a round tube, comprising a frame (1), characterized in that: An upper roller module (2) is provided on the frame (1), a lower roller module (4) and two side roller modules (3) are provided below and on both sides of the upper roller module (2), a lower roller body (5) having a central axis parallel to the bottom surface is provided in the lower roller module (4), a side roller body (6) having a central axis perpendicular to the bottom surface is provided in the side roller module (3), the central axes of the lower roller body (5) and the side roller body (6) are located in the same plane, the upper roller module (2) comprises an upper roller body (7) arranged offset from the lower roller body (5) and the side roller body (6), and an upper roller body (8) arranged directly above the lower roller body (5), the upper roller body (7), the lower roller body (5) and the two side roller bodies (6) are combined to form a positioning cavity (9); The upper roller module (2) further comprises an upper roller seat (11) arranged on the frame (1), the upper roller seat (11) being provided with an upper roller shaft (12) whose axis line is flush with the bottom surface, the upper roller (7) being sleeved on the upper roller shaft (12), a first bearing (13) being provided between each end of the upper roller shaft (12) and the upper roller (7), and an annular baffle (14) being inserted into the upper roller (7) being sleeved on each end of the upper roller shaft (12), the annular baffle (14) being connected to the upper roller (7) by bolts, the inner end of the inner ring of the first bearing (13) being in contact with the upper roller (7), and the outer end of the outer ring of the first bearing (13) being in contact with the annular baffle (14); The upper roller module (2) further comprises a connecting block (114) and a second upper roller seat (15) arranged on the frame (1); the second upper roller seat (15) and the connecting block (114) are movably connected via a slider rail structure; a translation mechanism (102) capable of adjusting the horizontal position of the second upper roller seat (15) is provided between the second upper roller seat (15) and the connecting block (114); and two symmetrical A No. 2 upper roller body (8) is provided, a reserved gap (10) is provided between two No. 2 upper roller bodies (8), the No. 2 upper roller body (8) is connected to the No. 2 upper roller body seat (15) via a lower connecting seat (108), and the lower connecting seat (108) is located on the outer end of the No. 2 upper roller body (8), and an independent driving mechanism (101) capable of driving the No. 2 upper roller body (8) to rise and fall in a vertical direction is provided between each No. 2 upper roller body (8) and the No. 2 upper roller body seat (15); The translation mechanism (102) comprises a transverse slide rail arranged transversely on the connecting block (114); a limit slide block slidably matched with the transverse slide rail is also arranged on the second upper roller body seat (15); a driving plate (115) is also arranged on the connecting block (114); a translation driving rod (116) is also arranged transversely on the driving plate (115) and is threadedly connected to the driving plate (115); an end of the translation driving rod (116) passes through the driving plate (115) and is rotatably connected to the second upper roller body seat (15); and a hand wheel (117) is connected to the end of the translation driving rod (116) away from the second upper roller body seat (15); The independent driving mechanism (101) comprises a turbine worm mechanism (104) arranged on the top of the second upper roller body seat (15); the lower end of the lifting worm (105) in the turbine worm mechanism (104) is axially fixedly connected to the lower connecting seat (108) for circumferential rotation; the lower connecting seat (108) is L-shaped and arranged in the vertical stroke groove (109); the inner side of the lower connecting seat (108) is provided with a lower positioning block (110) fixedly connected to the second upper roller body seat (15); the second upper roller body seat (15) and the lower connecting seat (108) A connecting structure (106) is also provided between the two connecting members, the connecting structure (106) comprising a connecting groove (111) which is recessed inwardly and is arranged at the top of the lower connecting seat (108); a lower connecting block (112) having a T-shaped cross section is inserted into the connecting groove (111); the top of the lower connecting block (112) is axially fixedly connected to the lifting worm (105) for circumferential rotation; the lower connecting seat (108) is also provided with a fixing pin (113) which passes through the side wall of the connecting groove (111) and the lower connecting block (112) in the transverse direction and abuts against the side wall of the lower positioning block (110); The lower roller module (4) further comprises a lower roller seat (28) arranged on the frame (1), wherein the lower roller seat (28) is movably connected to the frame (1) via a slider rail structure, and the lower roller seat (28) is provided with a lower roller body shaft (29) whose axis line is flush with the bottom surface, and the lower roller body (5) is sleeved on the lower roller body shaft (29), and a third bearing (30) is respectively provided between the two ends of the lower roller body shaft (29) and the lower roller body (5), and the two ends of the lower roller body shaft (29) are also respectively sleeved with a second annular baffle (31) inserted into the lower roller body (5), and the second annular baffle (31) is connected to the lower roller body (5) via bolts, and the inner end of the inner ring of the third bearing (30) abuts against the lower roller body (5), and the outer end of the outer ring of the third bearing (30) abuts against the second annular baffle (31); The No. 1 upper roller body (7), the No. 2 upper roller body (8), the lower roller body (5) and the two side roller bodies (6) are all provided with annular arc surfaces, and the outer diameters of the No. 1 upper roller body (7), the No. 2 upper roller body (8), the lower roller body (5) and the two side roller bodies (6) gradually increase from the middle to the two ends.

2. The welding assembly for round tube forming according to claim 1, characterized in that: The lower connecting seat (108) is further provided with two No. 2 upper roller shafts (16) symmetrically arranged along the center line of the lower connecting seat (108); the inner end of the No. 2 upper roller (8) is fixed to the inner end of the No. 2 upper roller shaft (16) by a pressure plate (120) and a screw; the outer end of the No. 2 upper roller shaft (16) is connected to the lower connecting seat (108) and three second bearings (17) are provided at the connection; the No. 2 upper roller shaft (16) is further sleeved with a top sleeve (18); the top sleeve (18) and the No. 2 upper roller shaft (16) are circumferentially limited by a key structure; the inner end of the top sleeve (18) abuts against the No. 2 upper roller (8); the outer end of the top sleeve (18) abuts against the inner end of the inner ring of the innermost second bearing (17); and the inner end of the outer ring of the innermost second bearing (17) abuts against the lower connecting seat (108). Each of the two second bearings (17) is provided with an outer top ring (19) and an inner top ring (20), the two ends of the outer top ring (19) respectively abut against the outer rings of the two second bearings (17), and the two ends of the inner top ring (20) respectively abut against the inner rings of the two second bearings (17). The second upper roller shaft (16) is also threaded with a screw nut (21), the inner end of the screw nut (21) abuts against the outer end surface of the inner ring of the outermost second bearing (17) through a blocking ring (22). The lower connecting seat (108) is connected with a baffle plate (23) by bolts, and the baffle plate (23) abuts against the outer end surface of the outer ring of the outermost second bearing (17). The second upper roller shaft (16) is also provided with a first oil pipeline (24), and the outer end of the first oil pipeline (24) is provided with a plug.

3. The welding assembly for round tube forming according to claim 2, characterized in that: The frame (1) is also provided with two columns (107) symmetrically arranged along the frame (1), and a crossbeam (25) is sleeved on the two columns (107). The connecting block (114) is fixed on the side wall of the crossbeam (25). The top of the crossbeam (25) is axially fixed and circumferentially rotatably connected to a vertically arranged No. 1 worm gear (26). The frame (1) is also provided with a No. 1 driver (27). The No. 1 driver (27) has a horizontally arranged and rotatable output shaft. The output shaft end of the No. 1 driver (27) is connected to a turbine, which is meshed with the No. 1 worm gear (26). The No. 1 upper roller body seat (11) and the connecting block (114) are both connected to the crossbeam (25).

4. The welding assembly for round tube forming according to claim 1, characterized in that: The frame (1) is also provided with a second driver (32), the second driver (32) having a horizontally arranged and rotatable output shaft, the output shaft of the second driver (32) being connected to a turbine, the turbine being meshingly connected to a vertically arranged second worm gear (33), the second worm gear (33) being rotatably connected to the lower roller seat (28).

5. The welding assembly for round tube forming according to claim 1, characterized in that: The side roller module (3) further comprises a side roller seat (34) fixedly connected to both sides of the lower roller seat (28); the side roller seat (34) is provided with a side roller body shaft (35) whose axis line is flush with the bottom surface; the side roller body (6) is sleeved on the side roller body shaft (35); a fourth bearing (36) is respectively provided between the two ends of the side roller body shaft (35) and the side roller body (6); the two ends of the side roller body shaft (35) are also sleeved with a third annular baffle (37) inserted into the side roller body (6); the third annular baffle (37) is connected to the side roller body (6) by bolts; the inner end of the inner ring of the fourth bearing (36) abuts against the side roller body (6); and the outer end of the outer ring of the fourth bearing (36) abuts against the third annular baffle (37).

6. The welding assembly for round tube forming according to claim 5, characterized in that: The frame (1) is also provided with a third driver (38), the third driver (38) having a vertically arranged and rotatable output shaft, the output shaft of the third driver (38) being connected to a turbine, the turbine being meshingly connected to a horizontally arranged third worm gear (39), the third worm gear (39) being rotatably connected to the side roller seat (34).

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