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CN-121988897-A - Pipe laser cutting device, laser pipe cutting machine and pipe cutting method

CN121988897ACN 121988897 ACN121988897 ACN 121988897ACN-121988897-A

Abstract

The invention provides a pipe laser cutting device, a laser pipe cutting machine and a pipe cutting method, and relates to the field of laser cutting, wherein the pipe laser cutting device comprises a cutting assembly and a movable seat, the movable seat can move along the X direction through an X-axis servo driving assembly, and the pipe laser cutting device also comprises a Z-axis movable plate, wherein the Z-axis movable plate is arranged on the movable seat in a lifting manner through the Z-axis servo driving assembly; the Y-axis moving plate is movably arranged on the Z-axis moving plate along the Y direction through a Y-axis servo driving assembly, the swinging seat is arranged on the Y-axis moving plate, the swinging seat is rotatably arranged on the Y-axis moving plate through a rotation driving assembly, the rotation axis of the swinging seat is parallel to the Y axis, the cutting assembly is arranged on the swinging seat, and the Y-axis moving plate, the moving seat and the Z-axis moving plate can synchronously move to realize oblique cutting on a rotating pipe. The groove cutting precision can be improved.

Inventors

  • LI WEICHAO
  • LU SHIQIANG
  • Guo Fangjia
  • TAN LIANG

Assignees

  • 济南邦德激光股份有限公司

Dates

Publication Date
20260508
Application Date
20260129

Claims (10)

  1. 1. The utility model provides a tubular product laser cutting device, includes cutting assembly (107) and removes seat (101), it can follow X through X axle servo drive assembly and remove to remove seat (101), its characterized in that still includes: a Z-axis moving plate (105), wherein the Z-axis moving plate (105) is arranged on the moving seat (101) in a lifting manner through a Z-axis servo driving assembly; a Y-axis moving plate (108), wherein the Y-axis moving plate (108) is movably arranged on the Z-axis moving plate (105) along the Y direction through a Y-axis servo driving assembly; The swinging seat (106) is arranged on the Y-axis moving plate (108), the swinging seat (106) is rotationally arranged on the Y-axis moving plate (108) through a rotation driving assembly, the rotation axis of the swinging seat (106) is parallel to the Y-axis, and the cutting assembly (107) is arranged on the swinging seat (106); The Y-axis moving plate (108), the moving seat (101) and the Z-axis moving plate (105) can synchronously move, and oblique cutting is achieved on the rotating pipe.
  2. 2. The pipe laser cutting device according to claim 1, wherein the Z-axis servo driving assembly comprises a Z-axis motor (104) and a Z-axis screw (109), the Z-axis motor (104) is disposed on the movable base (101), the Z-axis screw (109) is rotatably disposed on the movable base (101) and is disposed along the Z-direction, and the Z-axis screw (109) is connected with the Z-axis movable plate (105) through a Z-axis screw.
  3. 3. The pipe laser cutting apparatus as claimed in claim 2, wherein the Y-axis servo drive assembly comprises a Y-axis motor and a Y-axis screw (110), the Y-axis motor being disposed on the Y-axis moving plate (108), the Y-axis screw (110) being rotatably disposed on the Y-axis moving plate (108) and disposed in a Y-direction, the Y-axis screw (110) being connected to the Z-axis moving plate (105) by a Y-axis screw.
  4. 4. A pipe laser cutting apparatus according to claim 3, wherein the X-axis servo drive assembly comprises an X-axis motor (102), the X-axis motor (102) being arranged on the moving base (101), the X-axis motor (102) being connected with an X-axis gear (111), the X-axis gear (111) being capable of meshing with a rack on the machine bed (5).
  5. 5. The pipe laser cutting apparatus as claimed in claim 1, wherein the cutting assembly (107) comprises a laser cutting head, the nozzle head of which is located on the axis of rotation of the oscillating seat (106).
  6. 6. The utility model provides a laser pipe cutting machine, includes lathe bed (5), be provided with back chuck subassembly (2) and preceding chuck subassembly (3) on lathe bed (5), back chuck subassembly (2) are in along X to moving ground setting on lathe bed (5), preceding chuck subassembly (3) rotationally set up on lathe bed (5), its characterized in that still includes tubular product laser cutting device according to claim 5, movable seat (101) are in along X to moving ground setting on lathe bed (5).
  7. 7. The laser pipe cutting machine according to claim 6, further comprising a pulling assembly (6), wherein the pulling assembly (6) is located in front of the front chuck assembly (3) along the pipe discharging direction, the pulling assembly (6) comprises a pulling seat (601), the pulling seat (601) is movably arranged on the machine body (5) along the X direction, a lifting seat (602) is movably arranged on the pulling seat (601) along the Z axis, a clamping module (603) is arranged on the lifting seat (602), and the clamping module (603) can clamp the pipe.
  8. 8. The laser pipe cutting machine according to claim 7, further comprising a pipe support assembly (7), wherein the pipe support assembly (7) is located between the front chuck assembly (3) and the material pulling assembly (6), the pipe support assembly (7) comprises a sliding plate (702), the sliding plate (702) is movably arranged on the lathe bed (5) along an X axis, a supporting frame (703) is arranged on the sliding plate (702) in a lifting manner, and a material turning supporting plate (701) is arranged on the supporting frame (703) in a turning manner.
  9. 9. The laser pipe cutting machine according to claim 8, wherein the pipe supporting assembly (7) further comprises a mounting frame (709), the mounting frame (709) is arranged on the supporting frame (703) and is close to the front chuck assembly (3), a lifting frame (705) is arranged on the mounting frame (709) in a lifting mode, two limiting columns (706) are arranged at the top of the lifting frame (705), the two limiting columns (706) can move in the Y direction in the opposite direction and in the back direction, and the two limiting columns (706) can clamp a pipe to be processed.
  10. 10. A method for cutting a pipe, characterized in that the laser pipe cutting machine according to claim 9 is used, comprising the steps of: S01, according to the groove angle requirement, the swinging seat (106) rotates to a set position; S02, when the pipe to be processed is a square pipe and needs to be cut in a rotating mode, the front chuck assembly (3) rotates, the cutting assembly (107) continuously performs laser cutting, meanwhile, the Z-axis moving plate (105) moves along the Z axis, the Y-axis moving plate (108) moves along the Y axis, the moving seat (101) moves along the X axis, when the pipe to be processed is a circular pipe and needs to be cut in a rotating mode, the front chuck assembly (3) rotates, the cutting assembly (107) performs laser cutting, the Y-axis moving plate (108) moves along the Y axis, the moving seat (101) moves along the X axis, and when the pipe to be processed is a square pipe and does not need to be cut in a rotating mode, the cutting assembly (107) performs laser cutting, the Y-axis moving plate (108) moves along the Y axis, and the moving seat (101) moves along the X axis; S03, when the remaining pipe to be processed meets the length of zero tailing processing, the front chuck assembly (3) or the rear chuck assembly (2) is used for independently clamping the remaining pipe to be processed, and the cutting assembly (107) is used for carrying out laser processing; And S04, after the processing is finished, the material pulling assembly (6) moves to a position close to the front chuck assembly (3), after the clamping module (603) clamps the pipe, the material pulling assembly (6) moves reversely until the tail part of the pipe is positioned on the upper part of the material turning support plate (701), the clamping module (603) releases the clamping, the pipe falls onto the material turning support plate (701), and the material turning support plate (701) turns over to perform blanking.

Description

Pipe laser cutting device, laser pipe cutting machine and pipe cutting method Technical Field The invention relates to the field of laser cutting, in particular to a pipe laser cutting device, a laser pipe cutting machine and a pipe cutting method. Background The groove is a groove which is formed by machining and assembling a part to be welded of a welding piece into a certain geometric shape, and is mainly used for welding workpieces to ensure welding strength. In the related technology of pipe laser groove processing, a back chuck component on a machine tool is used for accurately clamping a pipe and driving the pipe to carry out servo feeding motion along the axis direction, namely the X direction, a movable seat capable of carrying out servo motion along the transverse direction perpendicular to the axis of the pipe, namely the Y direction, is arranged on a portal frame, a mounting beam is arranged on the movable seat, a cutting component is arranged on the mounting beam and can move along the Z axis, meanwhile, the cutting component is also integrated with an A/C shaft (or similar structure) rotating head capable of precisely swinging and used for adjusting the angle of groove cutting, and when the groove is processed, the X direction movement of the back chuck component, the Y direction movement of the movable seat on a cross beam and the Z direction movement of the cutting head are controlled by a control system, so that the laser cutting processing of the pipe groove is realized. When the technical scheme is adopted, on one hand, the machining precision is influenced by a rear chuck and a Y-axis transmission system of a portal frame, when the rear chuck reciprocates in a long stroke, errors such as positioning errors, reverse clearances and the like exist in the rear chuck, the errors can be directly superimposed on a final tool tip track with transmission errors on the portal frame, so that machining errors are caused, on the other hand, when an elongated pipe is clamped and driven to move at a high speed or a variable speed in an X direction by the rear chuck, obvious bending deformation and shaking are easily generated at an overhanging section due to poor rigidity of the elongated pipe, the laser focus is deviated from a preset relative position and angle relation of the surface of the pipe, and groove track distortion, uneven incision angles and even cutting failure are caused. Disclosure of Invention In order to solve the technical problem that the groove cutting precision is poor in the prior art, the invention provides a pipe laser cutting device, a laser pipe cutting machine and a pipe cutting method, which can improve the groove cutting precision. The invention provides a pipe laser cutting device which comprises a cutting assembly, a moving seat, a Z-axis moving plate, a Y-axis moving plate and a swinging seat, wherein the moving seat can move along the X direction through an X-axis servo driving assembly, the Z-axis moving plate is arranged on the moving seat in a lifting mode through the Z-axis servo driving assembly, the Y-axis moving plate is arranged on the Z-axis moving plate in a moving mode along the Y direction through the Y-axis servo driving assembly, the swinging seat is arranged on the Y-axis moving plate, the swinging seat is rotationally arranged on the Y-axis moving plate through a rotation driving assembly, the rotation axis of the swinging seat is parallel to the Y axis, the cutting assembly is arranged on the swinging seat, and the Y-axis moving plate, the moving seat and the Z-axis moving plate can synchronously move to realize oblique cutting on a rotating pipe. According to the invention, the cutting assembly is arranged on the frame which can move along the Y axis, the Z axis and the swinging seat (around the Y axis) in multiple degrees of freedom, and the Y axis moving plate, the moving seat and the Z axis moving plate synchronously move, so that oblique cutting of a pipe in rotation is realized. Further, the Z-axis servo driving assembly comprises a Z-axis motor and a Z-axis screw rod, the Z-axis motor is arranged on the movable seat, the Z-axis screw rod is rotationally arranged on the movable seat and arranged along the Z direction, and the Z-axis screw rod is connected with the Z-axis movable plate through a Z-axis screw nut. Further, the Y-axis servo driving assembly comprises a Y-axis motor and a Y-axis screw rod, the Y-axis motor is arranged on the Y-axis moving plate, the Y-axis screw rod is rotationally arranged on the Y-axis moving plate and arranged along the Y direction, and the Y-axis screw rod is connected with the Z-axis moving plate through a Y-axis screw nut. Further, the X-axis servo driving assembly comprises an X-axis motor, the X-axis motor is arranged on the movable seat, the X-axis motor is connected with a gear, and the gear can be meshed with a rack on the lathe bed. Further, the cutting assembly comprises a laser cutting head, and a nozzl