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CN-121972865-A - Steel structure welding positioner and method

CN121972865ACN 121972865 ACN121972865 ACN 121972865ACN-121972865-A

Abstract

The invention relates to a steel structure welding positioner and a method thereof, comprises a workbench, a driving clamping mechanism, a driven jacking mechanism and a welding gun pose adjusting mechanism. The driving clamping mechanism is arranged at one end of the workbench and used for clamping and driving the workpiece to rotate, the driven jacking mechanism and the driving clamping mechanism are oppositely arranged and realize centering and axial positioning of the workpiece through the slidable jacking device, and the welding gun pose adjusting mechanism is arranged on the workbench and used for clamping and accurately adjusting the spatial position and the pose of the welding gun. According to the invention, through the cooperative operation of uniform rotation of the workpiece and fixed positioning of the welding gun, the annular space welding seam is converted into planar continuous welding, so that the problem of unstable welding quality caused by insufficient centering precision and poor adjustment flexibility of the traditional positioner is effectively solved, and the welding precision, the automation degree and the operation efficiency are remarkably improved.

Inventors

  • CHEN XINBO
  • TIAN TAN
  • WANG MENG
  • YANG FAN
  • LIU JIAN
  • YANG ZHAO
  • LIU XIAOFENG
  • WANG CHONG
  • LOU XUAN

Assignees

  • 中交二公局第五工程有限公司

Dates

Publication Date
20260505
Application Date
20251222

Claims (10)

  1. 1. A steel structure weld locator, comprising: a work table (1); the driving clamping mechanism is arranged on the workbench (1) and is used for clamping a first end of a workpiece and driving the workpiece to rotate around the axis of the workpiece; The driven jacking mechanism is arranged on the workbench (1) and is used for jacking the second end of the workpiece so as to realize centering and axial positioning of the workpiece; and the welding gun pose adjusting mechanism is arranged on the workbench (1) and is used for clamping the welding gun and adjusting the position and the pose of the welding gun relative to the welding point of the workpiece.
  2. 2. The steel structure weld fixture of claim 1, wherein the drive clamping mechanism comprises: A first support plate (2) fixed to the table (1); a first fixed block (4) mounted on the first support plate (2); The motor (3) is arranged on the first fixed block (4), and the output end of the motor penetrates through the first supporting plate (2); and the pneumatic clamping disc (5) is arranged at the output end of the motor (3) so as to clamp the first end of the workpiece.
  3. 3. The steel structure weld locator of claim 2, wherein the driven tightening mechanism comprises: a fixing plate (18) fixed to the table (1); a third optical axis (19) having one end attached to the first support plate (2) and the other end attached to the fixing plate (18); The third sliding body (20) is sleeved on the third optical axis (19) in a sliding manner; And the jacking device is arranged on the third sliding body (20) and is used for jacking the second end of the workpiece and can move along the third optical axis (19) along with the third sliding body (20) so as to adjust the distance between the jacking device and the pneumatic clamping disc (5).
  4. 4. A steel structure welding positioner according to claim 3, wherein the tightening means comprises: a second support plate (16) fixedly mounted on top of the third slider (20); a push rod (17) penetrating and fixed to the second support plate (16); The cone (15) is arranged at the output end of the push rod (17), the central axis of the cone (15) coincides with the central axis of the pneumatic clamping disc (5), and the cone tip of the cone is arranged towards the pneumatic clamping disc (5) and is used for propping up and centering the second end of the workpiece.
  5. 5. The steel structure weld locator of claim 4, wherein the driven tightening mechanism further comprises: and a third screw (21) screwed into the third slider (20) and abutting against the third optical axis (19).
  6. 6. The steel structure weld locator of claim 1, wherein the gun pose adjustment mechanism comprises: The second fixing blocks (6), two second fixing blocks (6) are fixed on the workbench (1) at intervals; a first optical axis (7), both ends of which are respectively connected with the two second fixing blocks (6); The second sliding body (13) is sleeved on the first optical axis (7) in a sliding manner; and the welding gun clamping device is arranged on the second sliding body (13) and used for clamping the welding gun and can move along the first optical axis (7) along with the second sliding body (13) so as to adjust the relative position of the welding gun and the workpiece.
  7. 7. The steel structure weld locator of claim 6, wherein the welding gun clamping device comprises: a second optical axis (12) vertically installed on top of the second slider (13); The first sliding body (10) is sleeved on the second optical axis (12) in a sliding manner; a cylinder (9) one end of which is mounted on the first sliding body (10) and the other end of which is suspended; And the clamping block (8) is arranged at the suspension end of the cylinder (9) and is used for clamping the welding gun.
  8. 8. The steel structure weld locator of claim 7, wherein the gun pose adjustment mechanism further comprises: a first screw (11) screwed into the first slider (10) and abutting the cylinder (9); And a second screw (14) screwed into the second slider (13) and abutting against the first optical axis (7).
  9. 9. The steel structure weld locator of claim 1, further comprising slag collection means: The sliding chute (22) is arranged in the middle of the workbench (1), and the sliding chute (22) is of a concave structure with high two sides and low middle, and a third supporting plate (23), wherein the two third supporting plates (23) are fixed at the bottom of the workbench (1) and are positioned below the sliding chute (22); The box body (25) is supported on the two third supporting plates (23) in a drawable manner, and is positioned right below the sliding groove (22) to receive the falling welding slag.
  10. 10. A steel structure welding positioning method, characterized in that the steel structure welding positioning method using the steel structure welding positioner according to any one of claims 1 to 9 comprises: -providing the table (1); clamping a first end of the workpiece by the driving clamping mechanism and driving the workpiece to rotate around the axis of the workpiece; the driven propping mechanism is propped against and centers the second end of the workpiece, so that the workpiece can be stably and axially positioned in the rotating process; Clamping the welding gun through the welding gun pose adjusting mechanism, and adjusting the spatial position and the injection angle of the welding gun relative to a rotating workpiece to enable the welding gun to be aligned to a welding line; And starting the driving clamping mechanism to enable the workpiece to rotate at a constant speed, and simultaneously starting the welding gun to weld, so that each point on the annular welding seam is continuously welded when rotating to a preset top surface position.

Description

Steel structure welding positioner and method Technical Field The invention belongs to the field of steel structure welding, and particularly relates to a steel structure welding positioner and a steel structure welding method. Background The steel structure is used as an engineering structure system which is formed by taking steel as a main bearing member and connecting the steel by means of welding, bolts or rivets, and the like, and has become an indispensable structural form in the fields of modern building, large-scale infrastructure, high-end equipment manufacturing and the like due to the excellent mechanical properties of materials and the advantages of structural combination. The reliability and the versatility of their application depend to a large extent on the quality of the connection between the components, in particular the weld. In the welding process of steel structures, a welding positioner is a key tool for ensuring that a member can be accurately fixed to a predetermined position and angle. However, conventional steel structure welding positioners generally have design limitations, and are often in the form of single, fixed structures. Such rigid structures lack the necessary flexibility and multi-dimensional precision adjustment capabilities, often resulting in difficult positioning of the steel structural members to be welded, and difficult realization and maintenance of high precision alignment in actual operation. The defect of positioning accuracy can directly influence the forming quality of welding seams, the assembly accuracy of components and the final connection strength, thereby becoming a disadvantageous factor for restricting the quality and the safety of the whole steel structure engineering. Disclosure of Invention The invention aims to provide a steel structure welding positioner and a method thereof, which are used for overcoming the technical defects. In order to solve the technical problems, the invention provides a steel structure welding positioner, which comprises: A work table; the driving clamping mechanism is arranged on the workbench and used for clamping the first end of the workpiece and driving the workpiece to rotate around the axis of the workpiece; the driven jacking mechanism is arranged on the workbench and is used for jacking the second end of the workpiece so as to realize centering and axial positioning of the workpiece; And the welding gun pose adjusting mechanism is arranged on the workbench and is used for clamping the welding gun and adjusting the position and the pose of the welding gun relative to the welding point of the workpiece. The steel structure welding positioner, the driving clamping mechanism comprises: The first supporting plate is fixed on the workbench; The first fixed block is arranged on the first supporting plate; The motor is arranged on the first fixed block, and the output end of the motor penetrates through the first supporting plate; And the pneumatic clamping disc is arranged at the output end of the motor to clamp the first end of the workpiece. According to a steel construction welding positioner, driven tight mechanism includes: The fixed plate is fixed on the workbench; A third optical axis, one end of which is mounted to the first support plate, and the other end of which is mounted to the fixing plate; the third sliding body is sleeved on the third optical axis in a sliding manner; And the jacking device is arranged on the third sliding body and is used for jacking the second end of the workpiece and can move along the third optical axis along with the third sliding body so as to adjust the distance between the jacking device and the pneumatic clamping disc. The steel structure welding positioner, the jacking device comprises: The second supporting plate is fixedly arranged at the top of the third sliding body; The push rod penetrates through and is fixed on the second supporting plate; The cone is arranged at the output end of the push rod, the central axis of the cone coincides with the central axis of the pneumatic clamping disc, and the cone tip of the cone faces the pneumatic clamping disc and is used for propping up and centering the second end of the workpiece. The steel structure welding positioner, the driven jacking mechanism further comprises: And the third screw is screwed in the third sliding body and abuts against the third optical axis. According to a steel construction welding positioner, welder position appearance adjustment mechanism includes: the second fixing blocks are fixed on the workbench at intervals; the two ends of the first optical axis are respectively connected with the two second fixed blocks; the second sliding body is sleeved on the first optical axis in a sliding manner; And the welding gun clamping device is arranged on the second sliding body, is used for clamping the welding gun and can move along the first optical axis along with the second sliding body so as to adjust the relativ