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CN-121988972-A - Stable support type stainless steel pipe welding device and method

CN121988972ACN 121988972 ACN121988972 ACN 121988972ACN-121988972-A

Abstract

The invention relates to the technical field of steel pipe welding, in particular to a stable supporting type stainless steel pipe welding device and a stable supporting type stainless steel pipe welding method, which comprises a frame, wherein the top surface of the frame is provided with a workbench, one side of the top surface of the workbench is provided with a triaxial displacement mechanism, the execution end of the triaxial displacement mechanism is provided with a welding gun, the steel pipe clamping mechanisms are arranged on the left side and the right side of the top surface of the workbench, each steel pipe clamping mechanism comprises a carrying platform, the carrying platform is rotatably arranged on the workbench, clamping seats are arranged on the opposite sides of the top surface of the carrying platform, and a top pressing seat is movably arranged on the top surface of each clamping seat. According to the invention, the two steel pipe clamping mechanisms are both rotatably arranged on the workbench, so that the two steel pipes to be welded can be butted into a straight shape or a T shape, and the constraint requirements of the steel pipes under various welding working conditions are met.

Inventors

  • ZHONG SUTING
  • Gan Xinjin
  • HUANG HUIQING

Assignees

  • 广东益家管业有限公司

Dates

Publication Date
20260508
Application Date
20260402

Claims (10)

  1. 1. The utility model provides a stainless steel pipe welding set of steady rest type, includes the frame, the top surface of frame is equipped with the workstation, top surface one side of workstation is equipped with triaxial displacement mechanism, and the execution end of this triaxial displacement mechanism is equipped with welder, its characterized in that: steel pipe clamping mechanisms are arranged on the left side and the right side of the top surface of the workbench; The steel pipe clamping mechanism comprises a carrying platform which is rotatably arranged on the workbench, clamping seats are arranged on two opposite sides of the top surface of the carrying platform, a pressing top seat is movably arranged on the top surface of the clamping seat, the pressing top seat is in an inverted U shape and is internally used for allowing a steel pipe to be welded to pass through, and a pressing component used for pressing the steel pipe to be welded is further arranged on the top wall of the pressing top seat; The bearing rollers are respectively arranged on two opposite sides of the upper surface of the clamping seat and are rotationally connected with the clamping seat through adjusting components, and the rotating shafts of the bearing rollers are perpendicular to the axis direction of the bearing rollers; When the length direction of the carrying table is consistent with the length direction of the workbench, the axial direction of the carrying roller is consistent with the length direction of the workbench; when the length direction of the carrying platform is consistent with the length direction of the workbench, the adjusting assembly can drive the bearing roller to rotate, so that the bearing roller rotates to be parallel to the tangential direction of the steel pipe to be welded at the contact point.
  2. 2. The device for welding the stainless steel tube with the stable support type according to claim 1, wherein a main shaft is arranged at the center of the bottom surface of the carrying platform, penetrates through the working platform and is rotationally connected with the working platform through a bearing assembly, a servo motor is arranged on the bottom surface of the working platform, and an output shaft of the servo motor is fixedly connected with the main shaft coaxially through a coupler.
  3. 3. The welding device for the stable supporting type stainless steel tube of claim 1, wherein the upper surface of the clamping seat is concave inwards, and two bearing rollers on the upper surface of the clamping seat are located in the concave area.
  4. 4. The device for welding the stainless steel tube with the stable support type according to claim 1, wherein one end of the bottom of the jacking seat is hinged with the clamping seat, and the other end of the bottom of the jacking seat is clamped with the clamping seat.
  5. 5. The device for welding the stainless steel tube with the stable support type according to claim 1, wherein the pressing component comprises a pressing part movably arranged on the inner side of the pressing top seat and a pressing cylinder fixedly arranged on the top surface of the pressing top seat, the movable end of the pressing cylinder is fixedly connected with the pressing part, and universal balls are arranged on two sides of the bottom surface of the pressing part.
  6. 6. The device for welding the stainless steel tube with the stable support type according to claim 1, wherein the top surface of the clamping seat is provided with an installation cavity, the bearing roller is rotatably arranged on two sides of the inside of the installation cavity through an adjusting assembly, the adjusting assembly comprises a fixed block, a rotating shaft penetrates through the fixed block and is rotatably connected with the fixed block, the top end of the rotating shaft extends out of the installation cavity and is provided with a rotating seat, and the bearing roller is rotatably arranged in the corresponding rotating seat.
  7. 7. The device for welding the stainless steel tube with the stable support type according to claim 6, wherein a transverse shaft is rotatably arranged in the installation cavity, first bevel gears are symmetrically sleeved at two ends of the transverse shaft, second bevel gears are sleeved at the inner ends of the rotating shaft, and the first bevel gears are meshed with the corresponding second bevel gears.
  8. 8. The device for welding the stainless steel tube with the stable support type according to claim 7, wherein the bottom surface of the clamping seat penetrates through and rotates to form a driving shaft, the top end of the driving shaft stretches into the installation cavity and is provided with a worm, a worm wheel is fixedly sleeved outside the transverse shaft and meshed with the worm wheel, a driven gear is further arranged at the bottom end of the driving shaft, arc racks in one-to-one correspondence with the driven gears are arranged on the top surface of the workbench, and circle centers corresponding to the arc racks coincide with a rotating shaft of the carrying platform.
  9. 9. The welding device for the stable supporting type stainless steel tube of claim 1, wherein the bearing roller is dumbbell-shaped with two wide ends and a narrow middle, and an anti-slip rubber sleeve is wrapped outside the bearing roller.
  10. 10. A method for welding a stainless steel pipe, which is suitable for the stably supported stainless steel pipe welding device according to any one of claims 1 to 9, and is characterized by comprising the following steps: Respectively placing two steel pipes to be welded on two clamping seats on two carrying platforms; When two steel pipes are required to be welded into a linear shape, firstly aligning and attaching the end parts of the two steel pipes, then respectively covering a pressing top seat, and pressing the steel pipes through a pressing component; starting the triaxial displacement mechanism to drive the welding gun to move, welding by the welding gun, and enabling the welding gun to weld a complete circumferential welding path by slowly rotating the steel pipe by a worker; When two steel pipes need to be welded to be T-shaped, one of the carrying platforms is rotated to enable the two steel pipes to rotate by 90 degrees, then the positions of the steel pipes on the carrying platforms are finely adjusted to enable the welding spot positions of the two steel pipes to be just aligned with the positions of the other steel pipes, then the ends of the other steel pipes are abutted with the other steel pipes, a plurality of pressing top seats are respectively covered to fix and compress the steel pipes, and finally welding operation is carried out through a welding gun.

Description

Stable support type stainless steel pipe welding device and method Technical Field The invention relates to the technical field of steel pipe welding, in particular to a stable supporting type stainless steel pipe welding device and method. Background In the stainless steel pipe welding process, the traditional operation mode has a simple flow, but has a plurality of limitations in practical application. For example, chinese patent publication No. CN216325977U discloses a welding seam welding device for welding steel pipes, which mainly comprises two steel pipe support tables, a ring, a welding gun and other components. The device restrains the steel pipe through two steel pipe tables, has easy and simple to handle, convenient to use's advantage. However, in many engineering scenarios, such as the construction of a rack structure, a heat exchanger or a complex pipe network, it is often necessary to weld two steel pipes in a "T-shape". Through deep analysis, the existing welding tool (the structure shown in the patent) is mainly designed for coaxial line butt joint, and the clamping mechanism of the existing welding tool can only carry out unidirectional or radial constraint on the outer wall of the pipe body. When facing T font welding operating mode, because two steel pipes axis mutually perpendicular that wait to weld, consequently, current clamping tool is difficult to carry out the centre gripping to two mutually perpendicular's steel pipes simultaneously fixed, also traditional welding frock is difficult to satisfy under multiple operating mode simultaneously promptly, realizes the stable constraint demand to the stainless steel pipe. Therefore, we propose a stable support type stainless steel tube welding device and method to solve the above-mentioned drawbacks well. Disclosure of Invention The invention aims to provide a stable supporting type stainless steel pipe welding device and a method, which are used for solving the problems in the background technology. The invention is realized by the following technical scheme that the stable supporting type stainless steel pipe welding device comprises a frame, wherein a workbench is arranged on the top surface of the frame, a triaxial displacement mechanism is arranged on one side of the top surface of the workbench, a welding gun is arranged at the execution end of the triaxial displacement mechanism, and steel pipe clamping mechanisms are arranged on the left side and the right side of the top surface of the workbench; The steel pipe clamping mechanism comprises a carrying platform which is rotatably arranged on the workbench, clamping seats are arranged on two opposite sides of the top surface of the carrying platform, a pressing top seat is movably arranged on the top surface of the clamping seat, the pressing top seat is in an inverted U shape and is internally used for allowing a steel pipe to be welded to pass through, and a pressing component used for pressing the steel pipe to be welded is further arranged on the top wall of the pressing top seat; The bearing rollers are respectively arranged on two opposite sides of the upper surface of the clamping seat and are rotationally connected with the clamping seat through adjusting components, and the rotating shafts of the bearing rollers are perpendicular to the axis direction of the bearing rollers; When the length direction of the carrying table is consistent with the length direction of the workbench, the axial direction of the carrying roller is consistent with the length direction of the workbench; when the length direction of the carrying platform is consistent with the length direction of the workbench, the adjusting assembly can drive the bearing roller to rotate, so that the bearing roller rotates to be parallel to the tangential direction of the steel pipe to be welded at the contact point. Optionally, a main shaft is arranged at the center of the bottom surface of the carrying platform, penetrates through the working platform and is rotationally connected with the working platform, a servo motor is arranged on the bottom surface of the working platform, and an output shaft of the servo motor is coaxially and fixedly connected with the main shaft. The upper surface of the clamping seat is inwards concave, and two bearing rollers on the upper surface of the clamping seat are both positioned in the concave area. One end of the bottom of the jacking seat is hinged with the clamping seat, and the other end of the bottom of the jacking seat is clamped with the clamping seat. Optionally, the subassembly that pushes down includes the activity and sets up in pushing down the portion of pushing down the footstock inboard and the fixed cylinder that pushes down that sets up in pushing down the footstock top surface, the expansion end and the portion fixed connection that pushes down of pushing down of cylinder, the bottom surface both sides of pushing down the portion all are equipped with the univer