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CN-121988919-A - Auxiliary supporting device for pipe cutting, laser pipe cutting machine and working method of auxiliary supporting device

CN121988919ACN 121988919 ACN121988919 ACN 121988919ACN-121988919-A

Abstract

The invention provides an auxiliary supporting device for pipe cutting, a laser pipe cutting machine and a working method thereof, and relates to the field of laser cutting, wherein the auxiliary supporting device for pipe cutting comprises a sliding plate and a supporting plate, wherein the supporting plate is arranged on the sliding plate in a lifting manner; the support limiting assembly is arranged on the support plate and comprises two limiting rollers which are arranged oppositely, the limiting rollers are movably arranged on the support plate, the two limiting rollers can move oppositely and oppositely at the same time, and the two limiting rollers can clamp the two sides of the pipe to be processed, which extend out of the front chuck assembly. The invention can greatly ensure the cutting precision of finer pipes.

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. Auxiliary supporting device for pipe cutting, comprising a slide plate (108), characterized in that it further comprises: a support plate (114), wherein the support plate (114) is arranged on the sliding plate (108) in a lifting manner; Support spacing subassembly (102), support spacing subassembly (102) set up in backup pad (114), support spacing subassembly (102) including two spacing roller (111) of relative setting, spacing roller (111) set up with moving in backup pad (114), two spacing roller (111) can be simultaneously in opposite directions and reverse movement, and two spacing roller (111) can the centre gripping be in the both sides of the tubular product of waiting to process of stretching out preceding chuck assembly (6).
  2. 2. The auxiliary supporting device for pipe cutting according to claim 1, wherein a limiting groove (113) is horizontally arranged on the outer surface of the limiting roller (111), the cross section of the limiting groove (113) is of a semicircular structure, and the limiting groove (113) can be attached to the outer circular surface of the pipe.
  3. 3. The auxiliary supporting device for pipe cutting according to claim 2, wherein the limit roller (111) is rotatably arranged at the top of the supporting plate (114) and can be locked, and a plurality of limit grooves (113) are arranged on the outer surface of the limit roller (111), and the diameters of different limit grooves (113) are different.
  4. 4. The auxiliary supporting device for pipe cutting according to claim 1, wherein a supporting frame (107) is arranged on the sliding plate (108) in a lifting manner, a material turning support plate (109) is arranged on the supporting frame (107) in a turning manner, and the material turning support plate (109) is arranged in front of the supporting and limiting assembly (102) along the discharging direction.
  5. 5. The auxiliary supporting device for pipe cutting according to claim 4, wherein the supporting plate (114) is provided at the rear end of the supporting frame (107) in a lifting manner.
  6. 6. The utility model provides a laser pipe cutting machine, includes lathe bed (2) and cutting subassembly (5), be provided with back chuck subassembly (4) and preceding chuck subassembly (6) on lathe bed (2), back chuck subassembly (4) with cutting subassembly (5) are movably set up on lathe bed (2), its characterized in that still includes tubular product cutting auxiliary stay device (1) according to claim 5, slide (108) are movably set up along the X axle on lathe bed (2), along the ejection of compact direction, slide (108) are located preceding chuck subassembly (6) front portion.
  7. 7. The laser pipe cutting machine according to claim 6, further comprising a loading support device (3), wherein the loading support device (3) is disposed between the rear chuck assembly (4) and the front chuck assembly (6), the loading support device (3) comprises a plurality of loading support assemblies (301), the loading support assemblies (301) comprise bases (311), the bases (311) are disposed on the lathe bed (2), support bases (309) are disposed on the bases (311) in a lifting manner, two centering rollers (307) are disposed on top of the support bases (309) in an opposite manner, the two centering rollers (307) are disposed on the support bases (309) in a movable manner, and the two centering rollers (307) can move in the same direction and in opposite directions at the same time.
  8. 8. The laser pipe cutting machine according to claim 7, wherein the feeding support device (3) further comprises a driving motor (306) and a plurality of driving plates (302), the driving plates (302) comprise driving surfaces, the driving surfaces are obliquely arranged, the driving plates (302) are movably arranged on the machine body (2) and located on one side of the base (311), the driving plates (302) are connected through a pull rod (303), the driving motor (306) is connected with a driving screw (313), the driving screw (313) is horizontally and rotatably arranged on the machine body (2), driving screws (313) are provided with driving nuts (314), the driving nuts (314) are connected with the adjacent driving plates (302), lifting cylinders (312) are vertically arranged on the base (311), piston rods of the lifting cylinders (312) are connected with the supporting seat (309), rollers (310) are rotatably arranged on the supporting seat (309), and the rollers (310) are located below the driving plates (302) and can generate friction with the driving surfaces.
  9. 9. The laser pipe cutting machine according to claim 8, wherein the cutting assembly (5) comprises a movable seat (501), the movable seat (501) is movably arranged on the machine body (2), a lifting plate (502) is arranged on the movable seat (501) in a lifting manner, a translation plate (503) is arranged on the lifting plate (502) in a horizontal movement manner, the translation plate (503) is perpendicular to the movement direction of the movable seat (501), and a laser cutting head (504) is arranged on the translation plate (503).
  10. 10. A method of operating a laser pipe cutter according to claim 9, comprising the steps of: S01, placing a pipe to be cut between two centering rollers (307) of the feeding supporting device (3), and adjusting the height and the position of the centering rollers (307) to enable the axis of the pipe to be processed to be consistent with the axis of the rear chuck assembly (4); S02, clamping and fixing the in-place pipe by the front chuck assembly (6) and the rear chuck assembly (4), moving the pipe cutting auxiliary supporting device (1) to a set position in front of the front chuck assembly (6) to enable a pipe section extending out of the front chuck assembly (6) to be clamped between the two limit rollers (111), and turning the material turning support plate (109) to a horizontal state to support the pipe; s03, the laser cutting head (504) moves under the synergistic effect of the movable seat (501), the lifting plate (502) and/or the translation plate (503) to cut the pipe; S04, after the cut pipe falls onto the material turning support plate (109), the material turning support plate (109) is turned over to perform blanking.

Description

Auxiliary supporting device for pipe cutting, laser pipe cutting machine and working method of auxiliary supporting device Technical Field The invention relates to the field of laser cutting, in particular to an auxiliary supporting device for pipe cutting, a laser pipe cutting machine and a working method of the auxiliary supporting device. Background The laser pipe cutting machine is used for carrying out non-contact thermal cutting on metal pipes such as carbon steel, stainless steel, aluminum alloy and the like by focusing high-energy laser beams into tiny light spots, and precisely controlling the movement of laser tracks and pipes through a numerical control system under the cooperation of blowing slag by auxiliary gas, so that cutting, perforating, slotting and special-shaped contour machining can be efficiently completed, and the laser pipe cutting machine is suitable for pipes with various cross sections such as round pipes, square pipes, special-shaped pipes and the like. In the related art, the laser pipe cutting machine comprises a machine body, a moving mechanism, a follow-up clamping mechanism, a supporting mechanism and the like, wherein the follow-up clamping mechanism and the supporting mechanism are respectively arranged in the machine body, the follow-up clamping mechanism comprises a first mounting plate connected with the machine body, a lifting assembly arranged on the side wall of the first mounting plate and a butt clamping assembly connected with the lifting assembly, lifting or lowering of the butt clamping assembly is achieved through the lifting assembly, a rear chuck is avoided, the pipe fitting is clamped when the butt clamping assembly is arranged, the pipe fitting is clamped when the pipe fitting is machined, the follow-up clamping is achieved when the pipe fitting rotates, moves forwards or moves backwards, supporting of the pipe fitting is achieved through the supporting mechanism, clamping and supporting effects of the pipe fitting are guaranteed, pipe fitting shaking are avoided, and machining precision of the pipe fitting is improved. By adopting the technical scheme, for the pipe with smaller pipe diameter, the rigidity of the pipe is weaker during cutting, on one hand, high-pressure gas blows the pipe to shake when the surface of the pipe during cutting, so that the cutting precision is affected, on the other hand, the sagging phenomenon can occur after the thin pipe stretches out of the front chuck assembly, the chuck rotates to cause the pipe to swing, and the cutting precision is difficult to guarantee. Disclosure of Invention In order to solve the technical problem that the precision is difficult to guarantee when the laser pipe cutting machine cuts finer pipes in the prior art, the invention provides the auxiliary supporting device for pipe cutting, the laser pipe cutting machine and the working method thereof, and the precision of cutting finer pipes can be greatly guaranteed. The invention provides an auxiliary supporting device for pipe cutting, which comprises a sliding plate, a supporting plate and a supporting limiting assembly, wherein the supporting plate is arranged on the sliding plate in a lifting mode, the supporting limiting assembly is arranged on the supporting plate, the supporting limiting assembly comprises two limiting rollers which are oppositely arranged, the limiting rollers are movably arranged on the supporting plate, the two limiting rollers can move oppositely and reversely at the same time, and the two limiting rollers can clamp two sides of a pipe to be processed, which extends out of a front chuck assembly. According to the invention, the liftable support plate is arranged on the slide plate, and the pair of limiting rollers capable of moving in opposite directions or in opposite directions are arranged on the support plate, so that the clamping and limiting of the thin pipe extending out of the front chuck assembly are realized, the thin pipe is effectively lifted during cutting, and the shaking and the offset of the thin pipe caused by high-pressure gas blowing and sagging swing are restrained, so that the clamping stability and the cutting precision of the pipe are remarkably improved. Further, a limit groove is horizontally arranged on the outer surface of the limit roller, the cross section of the limit groove is of a semicircular structure, and the limit groove can be attached to the outer circular surface of the pipe. According to the invention, the semicircular limiting groove is used for changing the limiting contact from line contact to arc-shaped surface contact, so that tubules with different diameters can be better attached, the contact area is increased, the stress is uniform, the radial runout and the deflection of the tubular product are more effectively limited, meanwhile, the structure can provide stable guiding and supporting, meanwhile, the local stress concentration and the surface scratch of the tubular product ar