CN112276372A

CN112276372A - Laser cutting machine for pipeline machining and cutting method thereof

Info

Publication number: CN112276372A
Application number: CN202011117125.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhaoqing Zhongcai Electromechanical Technology Research and Development Co Ltd
Current assignee: Zhaoqing Zhongcai Electromechanical Technology Research and Development Co Ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-01-29

Abstract

The invention relates to the technical field of laser cutting, and discloses a laser cutting machine for pipeline machining and a cutting method thereof. The invention achieves the effect of synchronous cutting by the double laser cutter heads through the matching arrangement of the gear, the rotating table, the air blower and the nozzle, solves the problem of staggered openings caused by different irradiation time lengths of the upper and lower sections by laser beams in the cutting process in the prior art, achieves the effect of continuously blowing off metal slag attached to the inner wall of the pipeline through the matching arrangement of the nozzle, the air outlet pipe and the electromagnet, and solves the problem of large amount of burrs caused by cutting the section of the high-temperature gasification pipeline in the prior art.

Description

Laser cutting machine for pipeline machining and cutting method thereof

Technical Field

The invention relates to the technical field of laser cutting, in particular to a laser cutting machine for machining a pipeline and a cutting method thereof.

Background

With the rapid development of the modern mechanical industry, the requirements on the quality and the precision of pipeline cutting are continuously improved, the types of cutting machines are different, wherein the laser cutting machine has the fastest efficiency and the highest precision, and a workpiece after cutting can meet the requirements of various industrial production, so that the laser cutting machine is a mainstream product in the field of future instrument cutting and processing.

Most of the existing laser cutting machines use a single-side laser head to cut pipelines in a rotating way, and in the cutting process, as the section of the pipeline is in axial symmetry in any radial direction, laser beams can irradiate the edge of the cut section when irradiating the pipeline, so that the section finishing degree of the upper part and the lower part of the pipeline is different due to different lengths of time of the cut section irradiated by the laser beams, a large number of staggered openings are formed, and the cutting quality of the pipeline is greatly influenced; meanwhile, in the cutting process, as the metal pipeline is gasified at the cut part to generate a large amount of hot slag, the metal slag is attached to the section and the side wall of the pipeline to form burrs, and the normal installation and use of the pipeline are influenced.

Disclosure of Invention

Aiming at the defects of the prior art in the background art, the invention provides a laser cutting machine for pipeline machining and a cutting method thereof, which have the advantages of reducing the staggered joint of the cutting surface by synchronously cutting with double laser cutter heads and continuously introducing air flow to blow off slag, and solve the technical problems in the background art.

The invention provides the following technical scheme: the utility model provides a laser cutting machine for pipeline machining, includes the casing, the inside left end fixedly connected with anchor clamps of casing, the interior top of casing and the right-hand member fixedly connected with motor that is located anchor clamps, the output shaft lower extreme fixedly connected with carousel of motor, the inside of casing and the right side that is located the carousel rotate and are connected with the rotation platform, the left side fixedly connected with gear of rotation platform, the interior top of rotation platform and the equal fixedly connected with laser tool bit of interior bottom, the interior top of casing just is located the right side fixedly connected with electro-magnet of rotation platform, the lower extreme of electro-magnet just is located the casing bottom fixedly connected with case that gathers materials, the casing is equipped with the pipeline body along transversely running through, the outside left side of casing is equipped with air inlet mechanism, the outside right side of casing.

Preferably, the air inlet mechanism includes the air-blower, air-blower fixed connection is on the left of the upper end lateral wall of casing, air-blower left side through connection has the tuber pipe, the lower extreme of tuber pipe is equipped with raw material tank, raw material tank's left side through connection has the outlet duct, the other end fixedly connected with nozzle of outlet duct.

Preferably, the collecting mechanism comprises a material collecting opening, the upper end of the material collecting opening is connected with an air suction pipe in a penetrating manner, and the other end of the air suction pipe is fixedly connected to the air blower.

Preferably, the upper end surface of the turntable is provided with a single-side rack along the arc surface thereof, the number of the racks is one fourth of the number of the gear teeth, the diameter of the turntable is twice of the diameter of the gear, and the height value of the rack is equal to the vertical distance between the turntable and the gear.

Preferably, the diameter of the outlet of the nozzle is smaller than the inner diameter of the pipeline body.

Preferably, the gear is sleeved on the pipeline body, and the diameter of the inner through hole of the gear is larger than the outer diameter of the pipeline body.

A cutting method of a laser cutting machine for processing pipelines comprises the following cutting steps:

clamping, namely clamping the pipeline body through a clamp so that the area to be cut of the pipeline body is aligned to a laser cutter head;

injecting gas, starting a blower to enable an air inlet mechanism to start working, blowing PPA particles in a raw material box into an inner channel of a pipeline body along a nozzle through an air pipe, and removing residual metal slag on the section of the pipeline body under the action of high-speed airflow;

cutting, namely starting a motor to enable a rotary table to rotate to drive a laser cutter head to rotate in the vertical direction, simultaneously cutting the upper part and the lower part of the pipeline body, slowing down the interference of opposite laser beams through PPA particles in a channel in the pipeline body, reducing cross section stagger and improving the cutting efficiency;

and fourthly, collecting, namely switching on a power supply of the electromagnet to enable the electromagnet to adsorb the metal slag generated in the cutting process, and guiding the PPA particles in the right collecting port collecting device into the raw material box along the air suction pipe and the air pipe.

The invention has the following beneficial effects:

1. according to the invention, the two laser cutter heads are rotated to cut the pipeline through the rotation of the motor, so that the processing efficiency is greatly improved, meanwhile, through the matched arrangement among the gear, the rotating table, the air blower and the nozzle, the synchronous cutting effect of the two laser cutter heads is achieved, and the problem of malposition caused by different lengths of time of irradiation of laser beams on the upper and lower sections in the cutting process in the prior art is solved.

2. According to the invention, PPA particles are driven by the blower to continuously flow in the channel in the pipeline, so that the interference between two opposite laser cutter heads is reduced, and meanwhile, through the matching arrangement of the nozzle, the air outlet pipe and the electromagnet, the effect of continuously blowing off metal slag attached to the inner wall of the pipeline is achieved, and the problem of a large amount of burrs generated by cutting the section of the high-temperature gasification pipeline in the prior art is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the turntable of the present invention;

FIG. 3 is a side view of the gear and the turntable of the present invention;

fig. 4 is a schematic perspective view of the turntable according to the present invention.

In the figure: 1. a housing; 2. a clamp; 3. a motor; 4. a turntable; 5. a rotating table; 6. a gear; 7. a laser cutter head; 8. an electromagnet; 9. a material collecting box; 10. a material collecting port; 11. an air intake duct; 12. a blower; 13. an air duct; 14. a raw material tank; 15. an air outlet pipe; 16. a nozzle; 17. a pipe body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a laser cutting machine for pipeline processing comprises a housing 1, a clamp 2 is fixedly connected to the left end of the interior of the housing 1, a pipeline body 17 is clamped by the clamp 2, a motor 3 is fixedly connected to the inner top of the housing 1 and the right end of the clamp 2, a turntable 4 is fixedly connected to the lower end of the output shaft of the motor 3, a rotary table 5 is rotatably connected to the right side of the turntable 4 and the interior of the housing 1, a gear 6 is fixedly connected to the left side of the rotary table 5, a laser cutter head 7 is fixedly connected to the inner top and the inner bottom of the rotary table 5, air is sucked to mix air with PPA particles, the air is introduced into the inner wall of the pipeline body 17 through a nozzle 16, the motor 3 rotates to drive the turntable 4 to rotate, a rack arranged on the turntable 4 rotates along with the rack, the rotary table 5 is driven to turn over along the vertical direction through the meshing between the, casing 1's interior top just is located the right side fixedly connected with electro-magnet 8 of revolving stage 5, electro-magnet 8's lower extreme just is located casing 1 bottom fixedly connected with case 9 that gathers materials, the back is accomplished in the cutting, electro-magnet 8 can the inside metal slag of adsorption equipment, the realization is with the separation of PPA granule and metal slag, the pipeline body 17 that takes out the cutting completion this moment breaks off electro-magnet 8's power, the metal particle that adsorbs on the polar plate can fall to gather materials inside case 9, realize garbage collection, casing 1 is equipped with pipeline body 17 along transversely running through, casing 1's outside left side is equipped with air inlet mechanism, casing 1's outside right side is equipped with collects the mechanism. Air inlet mechanism includes air-blower 12, air-blower 12 fixed connection is on the left of the upper end lateral wall of casing 1, air-blower 12 left side through connection has tuber pipe 13, the lower extreme of tuber pipe 13 is equipped with raw material tank 14, raw material tank 14's left side through connection has outlet duct 15, the other end fixedly connected with nozzle 16 of outlet duct 15, when laser tool bit 7 cuts the upper end pipeline, because opposite laser beam is mutual interference, the high velocity air and the mixed PPA granule reflection laser beam of inner wall through pipeline body 17, make unilateral laser only shine pipeline one side, when the rack of carousel 4 meshes with gear 6, revolving stage 5 rotates with 180 degrees intermittence, in order to satisfy two side laser tool bit 7 to the comprehensive cutting of pipeline body 17. The collecting mechanism comprises a material collecting opening 10, PPA particles in the collecting device are collected by the material collecting opening 10 and are guided into a raw material box 14 through an air suction pipe 11, the upper end of the material collecting opening 10 is connected with the air suction pipe 11 in a penetrating mode, and the other end of the air suction pipe 11 is fixedly connected to an air blower 12. The upper end surface of carousel 4 is provided with the unilateral rack along its cambered surface, and the rack number is the fourth of the number of teeth of gear 6, and the diameter of carousel 4 is the twice of gear 6 diameter, when guaranteeing that carousel 4 rotates the round, the rack drives gear 6 and forms 180 degrees upsets, and the height value of rack equals the perpendicular distance of carousel 4 and gear 6 for rack and gear 6 intermeshing form the transmission. The diameter of the nozzle 16 at the exit is smaller than the inner diameter of the pipe body 17 so that the gas and the mixed PPA particles are introduced into the inner passage of the pipe body 17. The gear 6 is sleeved on the pipeline body 17, and the diameter of the inner through hole of the gear 6 is larger than the outer diameter of the pipeline body 17, so that the pipeline body 17 can penetrate through the center of the gear 6.

firstly, clamping, namely clamping the pipeline body 17 through the clamp 2 so that the area to be cut of the pipeline body 17 is aligned to the laser cutter head 7;

injecting gas, starting a blower 12 to enable an air inlet mechanism to start working, blowing PPA particles in a raw material box 14 into an inner channel of a pipeline body 17 through an air pipe 13 along a nozzle 15, and removing residual metal slag on the section of the pipeline body 17 under the action of high-speed air flow;

cutting, namely starting the motor 3 to enable the turntable 4 to rotate to drive the laser cutter head 7 to rotate along the vertical direction, simultaneously cutting the upper part and the lower part of the pipeline body 17, slowing down the interference of opposite laser beams through PPA particles in a channel in the pipeline body 17, reducing the cross section stagger and improving the cutting efficiency;

fourthly, collecting, switching on the power supply of the electromagnet 8 to enable the electromagnet to adsorb the metal slag generated in the cutting process, and guiding the PPA particles in the collecting device at the right collecting port 10 into the raw material box 14 along the air suction pipe 11 and the air pipe 13

The use method (working principle) of the invention is as follows: firstly, putting a pipeline body 17 to be processed, keeping a clamp 2 to clamp the pipeline body 17, sequentially starting a motor 3, an electromagnet 8, a laser tool bit 7 and a blower 12, sucking air to mix gas and PPA particles, leading the gas into the inner wall of the pipeline body 17 through a nozzle 16, driving a rotary table 4 to rotate by the rotation of the motor 3, driving a rack arranged on the rotary table 4 to rotate along with the rack, driving a rotary table 5 to turn over along the vertical direction through the meshing between the rack and a gear 6, realizing that the laser tool bit 7 rotates along the circumferential direction of the pipeline to achieve a cutting effect, when the upper end pipeline is cut by the laser tool bit 7, reflecting laser beams by high-speed airflow passing through the inner wall of the pipeline body 17 and the mixed PPA particles due to mutual interference of opposite laser beams, enabling single-side laser to irradiate one side of the pipeline, and when the rack of the rotary table 4 is meshed with the gear 6, in order to satisfy two side laser tool bits 7 to the comprehensive cutting of pipeline body 17, be located the PPA granule in the collection device of collection mouth 10 on pipeline body 17 right side, carry nozzle 16 through breathing pipe 11 and realize the recovery to the raw materials, the cutting is accomplished the back, electro-magnet 8 can the inside metal slag of adsorption equipment, the realization is with the separation of PPA granule and metal slag, the pipeline body 17 that takes out the cutting completion this moment breaks off the power of electro-magnet 8, the metal granule of absorption on the polar plate can fall inside collection box 9, realize garbage collection, partial not in time refrigerated melting granule adhesion is at pipeline body 17's inner wall, do not influence the planarization of fracture.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a laser cutting machine for pipeline machining, includes casing (1), its characterized in that: the automatic feeding device is characterized in that a clamp (2) is fixedly connected to the left end inside the shell (1), a motor (3) is fixedly connected to the right end of the clamp (2) and located at the top inside the shell (1), a turntable (4) is fixedly connected to the lower end of an output shaft of the motor (3), a rotating table (5) is rotatably connected to the right side of the turntable (4) and located inside the shell (1), a gear (6) is fixedly connected to the left side of the rotating table (5), a laser tool bit (7) is fixedly connected to the top inside and the bottom inside the rotating table (5), an electromagnet (8) is fixedly connected to the right side of the rotating table (5) and located at the top inside the shell (1), a material collecting box (9) is fixedly connected to the bottom inside the shell (1), a pipeline body (17) is arranged on the shell (1) in a transverse penetrating manner, and an air inlet mechanism is arranged on the left outside the, the right side of the outside of the shell (1) is provided with a collecting mechanism.

2. The laser cutting machine for machining a pipe according to claim 1, wherein: air inlet mechanism includes air-blower (12), air-blower (12) fixed connection is on the left of the upper end lateral wall of casing (1), air-blower (12) left side through connection has tuber pipe (13), the lower extreme of tuber pipe (13) is equipped with former feed tank (14), the left side through connection of former feed tank (14) has outlet duct (15), other end fixedly connected with nozzle (16) of outlet duct (15).

3. The laser cutting machine for machining a pipe according to claim 1, wherein: the collecting mechanism comprises a material collecting opening (10), the upper end of the material collecting opening (10) is connected with an air suction pipe (11) in a penetrating mode, and the other end of the air suction pipe (11) is fixedly connected to an air blower (12).

4. The laser cutting machine for machining a pipe according to claim 1, wherein: the upper end surface of carousel (4) is provided with the unilateral rack along its cambered surface, the rack number is the fourth of gear (6) number of teeth, just the diameter of carousel (4) is the twice of gear (6) diameter, the height value of rack equals the perpendicular distance of carousel (4) and gear (6).

5. The laser cutting machine for machining a pipe according to claim 1, wherein: the diameter of the air outlet of the nozzle (16) is smaller than the inner diameter of the pipeline body (17).

6. The laser cutting machine for machining a pipe according to claim 1, wherein: the gear (6) is sleeved on the pipeline body (17), and the diameter of the inner through hole of the gear (6) is larger than the outer diameter of the pipeline body (17).

7. A cutting method of a laser cutting machine for processing pipelines comprises the following cutting steps:

firstly, clamping, namely clamping a pipeline body (17) through a clamp (2) so that a to-be-cut area of the pipeline body (17) is aligned to a laser cutter head (7);

injecting gas, starting a blower (12) to enable an air inlet mechanism to start working, blowing PPA particles in a raw material box (14) into an inner channel of a pipeline body (17) along a nozzle (15) through an air pipe (13), and removing residual metal slag on the section of the pipeline body (17) under the action of high-speed air flow;

cutting, namely starting the motor (3) to enable the turntable (4) to rotate to drive the laser cutter head (7) to rotate along the vertical direction, simultaneously cutting the upper part and the lower part of the pipeline body (17), slowing down the interference of opposite laser beams through PPA particles in a channel in the pipeline body (17), reducing cross section stagger and improving the cutting efficiency;

and fourthly, collecting, namely switching on the power supply of the electromagnet (8) to enable the electromagnet to adsorb the metal slag generated in the cutting process, and guiding the PPA particles in the collecting device at the right collecting port (10) into the raw material box (14) along the air suction pipe (11) and the air pipe (13).