CN117464204A - Laser cutting equipment and process - Google Patents

Laser cutting equipment and process Download PDF

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Publication number
CN117464204A
CN117464204A CN202311834388.0A CN202311834388A CN117464204A CN 117464204 A CN117464204 A CN 117464204A CN 202311834388 A CN202311834388 A CN 202311834388A CN 117464204 A CN117464204 A CN 117464204A
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CN
China
Prior art keywords
laser cutting
cover
piece
air inlet
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202311834388.0A
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Chinese (zh)
Other versions
CN117464204B (en
Inventor
夏国章
劳浩滨
肖学超
廖文毅
潘祥考
陈成强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Longxin Laser Intelligent Equipment Co ltd
Original Assignee
Guangdong Longxin Laser Intelligent Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Longxin Laser Intelligent Equipment Co ltd filed Critical Guangdong Longxin Laser Intelligent Equipment Co ltd
Priority to CN202311834388.0A priority Critical patent/CN117464204B/en
Publication of CN117464204A publication Critical patent/CN117464204A/en
Application granted granted Critical
Publication of CN117464204B publication Critical patent/CN117464204B/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/703—Cooling arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Abstract

The application provides a laser cutting equipment and technology relates to laser cutting technical field, and this laser cutting equipment includes air inlet mechanism, and air inlet mechanism includes ring cover, ring cover rotary driving piece, closing cap, axial driving piece, sealed pad and air inlet joint, and on the rotary drum was located in the ring cover rotation, ring cover rotary driving piece set firmly on the rotary drum to be connected with the ring cover, the closing cap was connected with the ring cover, and on the closing cap was located to the axial driving piece, on the closing cap was located to the sealing pad, air inlet joint rotated the intercommunication with the closing cap. When the pipe workpiece is cut, the rear end of the pipe workpiece is plugged through the second plugging piece, the front end of the pipe workpiece is plugged through the first plugging piece, the air inlet connector is communicated with the high-pressure air source, high-pressure air is introduced into the pipe workpiece through the high-pressure air source, air flows out of a cut by laser, and the cut is fully cooled and deslagged.

Description

Laser cutting equipment and process
Technical Field
The application relates to the technical field of laser cutting, in particular to laser cutting equipment and a laser cutting process.
Background
The laser cutting machine is a machine device which utilizes the energy released by a laser beam, and irradiates the laser beam on the surface of a workpiece to be processed so as to melt and evaporate the irradiated part of the workpiece, thereby achieving the purpose of cutting. When the laser cutting machine cuts the metal pipe, a small opening is cut on the metal pipe by the laser head, the pipe wall of the metal pipe is penetrated, then the metal pipe is cut along the small opening in a circular cutting way, and the metal pipe is cut off.
The laser cutting of metal pipes can generate heat rapidly in the processing process, and thermal diffusion of parts can generate thermal damage. The heat affected zone of the part jeopardizes the integrity of the part and the surface effect is poor, thereby reducing the quality of the cut.
In order to reduce the influence of a heat affected zone on the cutting quality of a part, a wet cutting process or a dry cutting process is generally adopted in the laser cutting process to cool the cutting area, when a pipe workpiece is processed by adopting the wet cutting process, the pipe is required to be completely immersed below the liquid level to cool the processed material, however, the pipe is completely immersed below the liquid level, and laser is required to pass through the liquid to contact the pipe during cutting so as to realize cutting, so that the cutting effect is affected. The dry cutting process is to blow auxiliary gas to the laser and material action area for removing slag and cooling the laser action area.
Under the situation of cutting requirements of special shapes, the pipe needs to be subjected to large incision treatment at the part of the circumference of the pipe, when the large incision treatment is performed, a small opening is cut on the metal pipe through the laser head, the pipe wall of the metal pipe is penetrated, then the metal pipe is subjected to circular cutting along the small opening, and the metal pipe is cut off. Because the incision is great, slag is more in the course of working, and auxiliary gas blows to laser and material action region from the tubular product outside in the dry cutting technology, consequently blow slag to incision department easily and cause the jam of certain degree, slag clearance mode is difficult to satisfy the requirement, influences the cooling effect of tubular product incision department simultaneously.
Disclosure of Invention
The purpose of the application is to provide a laser cutting device and a laser cutting process, and when a large incision is needed to be processed at the part of the circumference of a pipe, a structural device and a processing method with high efficiency, slag removal and good cooling effect are provided.
In a first aspect, the present application provides a laser cutting device that adopts the following technical scheme:
a laser cutting apparatus comprising:
a frame;
the laser head is arranged on the frame;
the clamping mechanism comprises a first sliding seat, a first X-axis driving piece, an A-axis rotating assembly and a clamp, wherein the first X-axis driving piece is arranged on the rack and is connected with the first sliding seat, the A-axis rotating assembly is arranged on the first sliding seat, and the clamp is connected with the A-axis rotating assembly;
the air inlet mechanism comprises a first blocking piece, a second blocking piece and an air inlet joint, wherein the first blocking piece is used for blocking the front end of a pipe workpiece, the second blocking piece is used for blocking the rear end of the pipe workpiece, and the air inlet joint can be communicated with the inside of the pipe workpiece through the first blocking piece.
Through adopting above-mentioned technical scheme, when cutting the tubular product work piece, carry out the shutoff through the rear end of second shutoff piece to the tubular product work piece, the front end of rethread first shutoff piece to with air inlet connector and high pressure air supply intercommunication, through high pressure air supply to the inside high pressure gas that lets in of tubular product work piece, make the air current flow from laser cutting's incision outflow, carry out abundant cooling and scarfing cinder to the cutting part, thereby effectively improved cooling and scarfing cinder effect.
Optionally, the first plugging piece includes closing cap and sealing gasket, air inlet mechanism still includes axial drive piece, the closing cap is located in the frame, axial drive piece is located on the closing cap, axial drive piece is used for the drive the closing cap removes, sealing gasket locates on the closing cap, sealing gasket can with the tip butt of tubular product work piece, the air inlet joint with the closing cap rotates the intercommunication.
Through adopting above-mentioned technical scheme, when cutting the tubular product work piece, can drive the closing cap through axial drive piece and remove towards the front end of tubular product work piece, until the terminal surface butt of sealing washer and tubular product work piece to realize the shutoff to tubular product work piece front end.
Optionally, the pipe workpiece cooling device further comprises an axial blowing device, wherein the axial blowing device is arranged on the frame and is used for blowing air flow flowing along the axial direction of the pipe workpiece to the outer side of the pipe workpiece.
By adopting the technical scheme, the axial blowing device blows air flow flowing along the axial direction of the pipe workpiece to the outer side of the pipe workpiece, and the cutting slag blown out from the notch of the pipe workpiece is blown along the axial direction of the pipe workpiece, so that the cutting slag is prevented from being directly blown out from the notch and then being beaten on the laser head as much as possible.
Optionally, the laser cutting device further comprises a guiding mechanism, the guiding mechanism comprises a rotary drum, the air inlet mechanism further comprises a ring sleeve, the rotary drum is rotationally arranged on the frame, the ring sleeve is rotationally arranged on the rotary drum, and the sealing cover is connected with the ring sleeve.
Through adopting above-mentioned technical scheme, when carrying out laser cutting to tubular workpiece, pass the rotary drum with tubular workpiece, can play the effect of supporting spacing and direction to tubular workpiece through the rotary drum.
Optionally, the ring cover is provided with a rack, the sealing cover is provided with a guide hole, the sealing cover is slidably sleeved on the rack through the guide hole, the axial driving piece is a first motor, the first motor is fixedly arranged on the sealing cover, an output shaft of the first motor is provided with a driving gear, and the driving gear is meshed with the rack.
Through adopting above-mentioned technical scheme, can drive the drive gear through first motor and rotate, under the interact of drive gear and rack, can drive the closing cap and move towards the rotary cylinder to can drive the tip butt of sealed pad and tubular product work piece.
Optionally, the air inlet mechanism further comprises a ring sleeve rotary driving piece, wherein the ring sleeve rotary driving piece is fixedly arranged on the rotary cylinder and connected with the ring sleeve, and the ring sleeve rotary driving piece is used for driving the ring sleeve to rotate around the axis of the rotary cylinder.
Through adopting above-mentioned technical scheme, can drive ring cover and rack through ring cover rotary driving piece and rotate to the position of adjustable rack avoids the cutting light path interference of rack and laser head.
Optionally, the air inlet mechanism further comprises a support and a linear driving piece, the support is slidably arranged in the sealing cover, the linear driving piece is fixedly arranged on the sealing cover and connected with the support, the linear driving piece is used for driving the support to move along the axial direction of the sealing cover, and the sealing gasket is rotationally connected with the support.
Through adopting above-mentioned technical scheme, after finishing cutting the pipe work piece through the laser head, can drive the closing cap through the axial drive piece and remove towards the direction of keeping away from the rotary drum, simultaneously remove towards the direction that is close to the rotary drum through sharp drive piece drive support to can release the cutting work piece from the closing cap in, accomplish the unloading of cutting work piece.
Optionally, an air pipe is arranged on the sealing cover, a sliding cylinder is arranged on the support, the sliding cylinder is inserted in the air pipe in a sliding manner, and the air pipe is communicated with the air inlet connector in a rotating manner.
Through adopting above-mentioned technical scheme, be equipped with the trachea on the closing cap, be equipped with the slide on the support, the slide is inserted and is located in the trachea, and the trachea rotates the intercommunication with the air inlet joint to make the high-pressure gas that comes from the air inlet joint get into in the tubular product work piece through trachea and slide.
Optionally, the guiding mechanism further includes a second slide and a second X-axis driving member, where the second X-axis driving member is disposed on the frame and connected to the second slide, and the second X-axis driving member is used to drive the second slide to move, and the rotating cylinder is rotationally disposed on the second slide.
Through adopting above-mentioned technical scheme, can drive the second slide through the second X axle driving piece and remove along the X axial direction of frame to can adjust the rotary drum in the ascending position of X axial, and then adjust the supporting position to the pipe work piece, in order to adapt to different cutting needs.
In a second aspect, the present application provides a laser cutting process that adopts the following technical scheme:
a laser cutting process, based on the laser cutting device, comprising the following steps:
step 1, clamping a pipe workpiece through a clamp, and enabling the pipe workpiece to pass through a rotary drum;
step 2, plugging the rear end of the pipe workpiece by using a second plugging piece, and driving the sealing cover to move towards the front end of the pipe workpiece by using an axial driving piece until the sealing gasket is abutted with the end face of the pipe workpiece;
and 3, communicating the air inlet joint with a high-pressure air source, carrying out laser cutting on a pipe workpiece positioned between the rotary cylinder and the sealing cover through the laser head, and simultaneously introducing high-pressure air into the pipe workpiece through the high-pressure air source to enable air flow to flow out from a cut by the laser, and cooling and deslagging the cut.
Through adopting above-mentioned technical scheme, when cutting the tubular product work piece, carry out the shutoff through the rear end of second shutoff piece to the tubular product work piece, the front end of rethread first shutoff piece to with air inlet connector and high pressure air supply intercommunication, through high pressure air supply to the inside high pressure gas that lets in of tubular product work piece, make the air current flow from laser cutting's incision outflow, carry out abundant cooling and scarfing cinder to the cutting part, thereby effectively improved cooling and scarfing cinder effect.
In summary, the present application includes at least one of the following beneficial technical effects:
when cutting tubular product work piece through the laser cutting equipment of this application, carry out the centre gripping to tubular product work piece through anchor clamps, and pass the rotary drum with tubular product work piece, use the one end of second shutoff piece to carry out the shutoff towards tubular product work piece, rethread axial drive piece drive closing cap removes towards tubular product work piece's the other end, until sealed terminal surface butt of filling up and tubular product work piece, connect air inlet and high pressure air supply intercommunication next, carry out laser cutting through the tubular product work piece that the laser head is located between rotary drum and the closing cap, simultaneously let in high pressure gas to tubular product work piece inside through the high pressure air supply, make the air current follow laser cutting's incision outflow, cool off and scarfing cinder to the cutting edge, thereby effectively improved cooling and scarfing cinder effect.
Drawings
Fig. 1 is a schematic structural diagram of a laser cutting device according to an embodiment of the present application;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is a partially enlarged schematic illustration of portion B of FIG. 1;
FIG. 4 is an enlarged schematic view of a portion C of FIG. 3;
fig. 5 is a cross-sectional view of an air intake mechanism in an embodiment of the present application.
Reference numerals illustrate:
10. a frame; 11. an X-axis guide rail; 20. a laser head;
30. a clamping mechanism; 31. a first slider; 32. a first X-axis driving member;
33. an A-axis rotating assembly; 331. an A-axis rotating sleeve; 3313. a gear ring; 332. an A-axis rotation driving piece;
34. a clamp;
40. a guide mechanism; 41. a second slider; 42. a second X-axis driving member; 43. a rotary drum;
50. an air inlet mechanism; 51. a ring sleeve; 511. a rack; 512. a driven gear; 52. a collar rotary drive member; 521. a drive gear;
53. a cover; 531. a guide hole; 532. an air pipe; 54. an axial drive member; 541. a drive gear; 55. a sealing gasket; 56. an air inlet joint; 58. a support; 581. a slide cylinder; 59. a linear driving member; 591. a piston rod;
90. a Y-axis moving assembly; 100. a Z-axis movement assembly;
110. a B-axis rotating assembly; 120. a clamping jaw; 130. and (3) a riding wheel.
Detailed Description
The present application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses laser cutting equipment and a laser cutting process.
Referring to fig. 1, 2 and 3, a laser cutting apparatus includes a frame 10, a laser head 20, a clamping mechanism 30, a guiding mechanism 40, an air intake mechanism 50, a Y-axis moving assembly 90, a Z-axis moving assembly 100, a B-axis rotating assembly 110 and an axial blowing device, wherein the laser head 20 is disposed on the frame 10, and in an alternative embodiment, the specific connection relationship between the laser head 20 and the frame 10 is as follows:
the Y-axis moving assembly 90 is arranged on the frame 10, and the Y-axis moving assembly 90 can adopt a linear screw rod module or a gear rack linear module; the Z-axis moving assembly 100 is connected with the Y-axis moving assembly 90, the Z-axis moving assembly 100 can be driven to move along the Y-axis through the Y-axis moving assembly 90, and the Z-axis moving assembly 100 can adopt a linear screw rod module or a gear rack linear module; the B-axis rotating assembly 110 is connected with the Z-axis moving assembly 100, and the B-axis rotating assembly 110 can adopt a gear pair rotary driving module; the laser head 20 is connected with the B-axis rotating assembly 110, and the laser head 20 can be driven to rotate through the B-axis rotating assembly 110.
Referring to fig. 1 and 2, the clamping mechanism 30 includes a first slide 31, a first X-axis driving member 32, an a-axis rotating assembly 33, and a fixture 34, the frame 10 is provided with an X-axis guide rail 11 and a riding wheel 130, the first slide 31 is slidably disposed on the X-axis guide rail 11, the first X-axis driving member 32 is disposed on the frame 10 and connected to the first slide 31, the a-axis rotating assembly 33 is disposed on the first slide 31, and the fixture 34 is connected to the a-axis rotating assembly 33.
In an alternative embodiment, the specific structure of the a-axis rotating assembly 33, and the specific connection relationship with the clamp 34, are as follows:
the a-axis rotating assembly 33 includes an a-axis rotating sleeve 331 and an a-axis rotating driving member 332, the a-axis rotating sleeve 331 is rotatably disposed on the first slide seat 31, the a-axis rotating driving member 332 is fixedly disposed on the first slide seat 31 and connected with the a-axis rotating sleeve 331, the a-axis rotating driving member 332 may adopt an a-axis rotating driving motor, a main gear is disposed on an output shaft of the a-axis rotating driving motor, a gear ring 3313 is disposed on the a-axis rotating sleeve 331, and the main gear is meshed with the gear ring 3313.
The clamp 34 is detachably connected with the a-axis rotating sleeve 331 so as to replace a new clamp, thereby adapting to the clamping requirements of pipe workpieces with different cross-sectional shapes, and in the embodiment, the clamp 34 can adopt a self-centering chuck.
When the pipe workpiece is required to be cut by laser, the pipe workpiece passes through the A-axis rotating sleeve 331 and the clamp 34, the pipe workpiece can be clamped by the clamp 34, the pipe workpiece is supported by the riding wheel 130, the A-axis rotating sleeve 331 can be driven to rotate by the A-axis rotating assembly 33, and therefore the pipe workpiece rotates around the A-axis in the cutting process, the A-axis is the axis of the A-axis rotating sleeve 331, and in the embodiment, the axis of the A-axis rotating sleeve 331 is parallel to the X-axis. The first slide 31 can be driven to move along the X axis by the first X axis driving piece 32, so that the feeding amount of the pipe workpiece in the X axis direction in the cutting process is realized.
Referring to fig. 3 and 4, the guiding mechanism 40 includes a second slide 41, a second X-axis driving member 42, a rotating cylinder 43, a clamping jaw 120, and a clamping jaw driving member, where the second slide 41 is slidably disposed on the X-axis guide rail 11, and the second X-axis driving member 42 is disposed on the frame 10 and connected to the second slide 41, and in this embodiment, the second X-axis driving member 42 may be an X-axis linear hydraulic cylinder module. The rotary drum 43 is rotatably provided on the second slider 41. The second slide 41 is driven to move along the X-axis by the second X-axis driving member 42, so that the position of the rotary drum 43 relative to the laser head 20 in the X-axis direction is adjusted to adapt to different cutting requirements.
When the pipe workpiece is required to be cut by laser, the pipe workpiece is clamped by the clamp 34, and simultaneously passes through the rotary drum 43, and the rotary drum 43 plays a role in supporting, limiting and guiding the pipe workpiece.
The jaw driving members are fixedly arranged on the second sliding seat 41, the jaws 120 are arranged in pairs, the jaw driving members are connected with the pairs of jaws 120, and the jaw driving members are used for driving the pairs of jaws 120 to move oppositely or back to each other, and in this embodiment, the jaw driving members can adopt jaw driving cylinders. When the length of the pipe workpiece subjected to cutting processing is short, and the pipe workpiece is not required to be rotated during cutting, the clamping jaw driving piece can only drive the paired clamping jaws 120 to move oppositely, so that the pipe workpiece is clamped and fixed, and the clamping mechanism 30 is not required to clamp the pipe workpiece, so that the clamping efficiency is improved.
During the cutting process, the first X-axis driving member 32 can drive the pipe workpiece to move along the X-axis direction, the a-axis rotating member 33 can drive the pipe workpiece to rotate around the a-axis, and the Y-axis moving member 90, the Z-axis moving member 100 and the B-axis rotating member 110 can respectively drive the laser head 20 to move along the Y-axis and the Z-axis and rotate around the B-axis, so that the laser cutting of the pipe workpiece is realized.
Referring to fig. 4 and 5, the air intake mechanism 50 includes a first blocking member, a second blocking member, a collar 51, a collar rotation driving member 52, an axial driving member 54, an air intake joint 56, a support 58, and a linear driving member 59, the collar 51 is rotatably provided on the rotary drum 43, the collar rotation driving member 52 is fixedly provided on the rotary drum 43 and connected to the collar 51, and the collar 51 is rotatable about the axis of the rotary drum 43 by the collar rotation driving member 52.
In an alternative embodiment, the specific configuration of the collar rotary drive 52, and the specific connection relationship with the collar 51, is as follows: the ring rotating driving member 52 may be a ring rotating driving motor, the output shaft of the ring rotating driving motor is provided with a driving gear 521, the ring 51 is provided with a driven gear 512, and the driving gear 521 is meshed with the driven gear 512.
The first plugging member is used for plugging the front end of the pipe workpiece, and the second plugging member is used for plugging the rear end of the pipe workpiece, in this embodiment, the end of the pipe workpiece, which is close to the laser head 20, is the front end, and the end of the pipe workpiece, which is far away from the laser head 20, is the rear end.
The air inlet connector 56 can be communicated with the inside of the pipe workpiece through a first blocking piece, the first blocking piece comprises a blocking cover 53 and a sealing gasket 55, the blocking cover 53 is connected with the annular sleeve 51, the axial driving piece 54 is arranged on the blocking cover 53, and the blocking cover 53 can be driven to move along the axial direction of the rotary cylinder 43 through the axial driving piece 54 so as to drive the blocking cover 53 to be close to or far away from the rotary cylinder 43. In an alternative embodiment, the specific configuration of the axial driver 54, and the specific connection relationship with the cover 53, is as follows: the ring cover 51 is provided with a rack 511, the sealing cover 53 is provided with a guide hole 531, the sealing cover 53 is sleeved on the rack 511 in a sliding way through the guide hole 531, the axial driving piece 54 is a first motor, the first motor is fixedly arranged on the sealing cover 53, an output shaft of the first motor is provided with a driving gear 541, and the driving gear 541 is meshed with the rack 511.
The gasket 55 is disposed on the cover 53, the gasket 55 can abut against an end of the pipe work, and in an alternative embodiment, the gasket 55 is connected to the cover 53 in the following manner: the support 58 is slidably disposed in the cover 53, and the linear driving member 59 is fixedly disposed on the cover 53 and connected to the support 58, and the sealing pad 55 is rotatably connected to the support 58. In this embodiment, the linear driving member 59 may be a linear driving cylinder, and a piston rod 591 of the linear driving cylinder is fixedly connected to the support 58.
An air inlet fitting 56 is in rotational communication with the cover 53, the air inlet fitting 56 being adapted for communication with a high pressure air supply, in an alternative embodiment, the air inlet fitting 56 is in specific communication with the cover 53 as follows: the cover 53 is provided with an air pipe 532, the support 58 is provided with a sliding cylinder 581, the sliding cylinder 581 is inserted into the air pipe 532 in a sliding manner, and the air pipe 532 is in rotary communication with the air inlet connector 56.
The axial blowing device is arranged on the frame 10, and is used for blowing air flow flowing along the axial direction of the pipe workpiece to the outer side of the pipe workpiece, and the axial blowing device can adopt an axial flow fan.
The embodiment of the application also discloses a laser cutting process.
A laser cutting process, based on the laser cutting apparatus disclosed in the present embodiment, includes the steps of:
step 1, a pipe workpiece passes through an A-axis rotating sleeve 331 and a clamp 34, the pipe workpiece is clamped by the clamp 34, and the pipe workpiece passes through a rotating cylinder 43;
step 2, plugging the rear end of the pipe workpiece by using a second plugging piece, wherein the second plugging piece can adopt an end plate, and the end plate can be connected with the rear end of the pipe workpiece in a flange connection mode and is sealed by a rubber pad;
then, the sealing cover 53 is driven to move towards the front end of the pipe workpiece by the axial driving piece 54 until the sealing gasket 55 is abutted with the end face of the pipe workpiece;
step 3, communicating an air inlet joint 56 with a high-pressure air source, carrying out laser cutting on a pipe workpiece positioned between the rotary cylinder 43 and the sealing cover 53 through the laser head 20, cutting a small opening on the metal pipe through the laser head 20 when cutting the metal pipe, penetrating the pipe wall of the metal pipe, and carrying out circular cutting on the metal pipe along the small opening to cut the metal pipe;
when the metal pipe is cut, high-pressure gas is introduced into the pipe workpiece through a high-pressure gas source, so that gas flow flows out of the cut by the laser, and the cut is cooled and slag is removed; simultaneously, the air flow flowing along the axial direction of the pipe workpiece is blown to the outer side of the pipe workpiece through the axial blowing device, and the cutting slag blown out from the notch of the pipe workpiece is blown along the axial direction of the pipe workpiece, so that the cutting slag is prevented from being directly blown out from the notch and then is hit on the laser head 20;
during the cutting process, the pipe workpiece can be driven to rotate around the axis A through the axis A rotating component 33, and the sealing pad 55 can synchronously rotate along with the pipe workpiece when the pipe workpiece rotates around the axis A due to the fact that the sealing pad 55 is in rotary connection with the support 58. The ring cover 51 and the rack 511 can be driven to rotate by the ring cover rotary driving piece 52, so that the position of the rack 511 can be adjusted, and interference between the rack 511 and a cutting light path of the laser head 20 is avoided.
And 4, after the pipe workpiece positioned between the rotary drum 43 and the sealing cover 53 is cut by the laser head 20, driving the sealing cover 53 to move in a direction away from the rotary drum 43 by the axial driving piece 54, and simultaneously driving the support 58 to move in a direction close to the rotary drum 43 by the linear driving piece 59, so as to push out the cut workpiece from the sealing cover 53, thereby completing the blanking of the cut workpiece.
The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A laser cutting apparatus, comprising:
a frame (10);
the laser head (20) is arranged on the frame (10);
the clamping mechanism (30), the clamping mechanism (30) comprises a first sliding seat (31), a first X-axis driving piece (32), an A-axis rotating assembly (33) and a clamp (34), the first X-axis driving piece (32) is arranged on the frame (10) and connected with the first sliding seat (31), the A-axis rotating assembly (33) is arranged on the first sliding seat (31), and the clamp (34) is connected with the A-axis rotating assembly (33);
the air inlet mechanism (50), air inlet mechanism (50) include first shutoff piece, second shutoff piece and air inlet joint (56), first shutoff piece is used for carrying out the shutoff to the front end of tubular product work piece, the second shutoff piece is used for carrying out the shutoff to the rear end of tubular product work piece, air inlet joint (56) can pass through first shutoff piece and the inside intercommunication of tubular product work piece.
2. The laser cutting device according to claim 1, wherein the first blocking member comprises a cover (53) and a sealing gasket (55), the air inlet mechanism (50) further comprises an axial driving member (54), the cover (53) is arranged on the frame (10), the axial driving member (54) is arranged on the cover (53), the axial driving member (54) is used for driving the cover (53) to move, the sealing gasket (55) is arranged on the cover (53), the sealing gasket (55) can be abutted with the end part of a pipe workpiece, and the air inlet joint (56) is in rotary communication with the cover (53).
3. A laser cutting apparatus according to claim 1, further comprising axial blowing means provided on the frame (10) for blowing an air flow flowing axially along the pipe work to the outside of the pipe work.
4. A laser cutting device according to claim 2, further comprising a guiding mechanism (40), said guiding mechanism (40) comprising a rotary drum (43), said air inlet mechanism (50) further comprising a collar (51), said rotary drum (43) being rotatably arranged on said frame (10), said collar (51) being rotatably arranged on said rotary drum (43), said cover (53) being connected to said collar (51).
5. The laser cutting device according to claim 4, wherein the ring sleeve (51) is provided with a rack (511), the sealing cover (53) is provided with a guide hole (531), the sealing cover (53) is slidably sleeved on the rack (511) through the guide hole (531), the axial driving piece (54) is a first motor, the first motor is fixedly arranged on the sealing cover (53), an output shaft of the first motor is provided with a driving gear (541), and the driving gear (541) is meshed with the rack (511).
6. The laser cutting apparatus as set forth in claim 4, wherein the air intake mechanism (50) further comprises a collar rotary driving member (52), the collar rotary driving member (52) being fixedly disposed on the rotary drum (43) and connected to the collar (51), the collar rotary driving member (52) being configured to drive the collar (51) to rotate about the axis of the rotary drum (43).
7. The laser cutting device according to claim 4, wherein the air intake mechanism (50) further comprises a support (58) and a linear driving member (59), the support (58) is slidably disposed in the cover (53), the linear driving member (59) is fixedly disposed on the cover (53) and connected to the support (58), the linear driving member (59) is used for driving the support (58) to move along an axial direction of the cover (53), and the sealing pad (55) is rotationally connected to the support (58).
8. A laser cutting device according to claim 7, wherein the cover (53) is provided with an air tube (532), the support (58) is provided with a slide tube (581), the slide tube (581) is slidably inserted into the air tube (532), and the air tube (532) is in rotational communication with the air inlet connector (56).
9. A laser cutting device according to claim 4, wherein the guiding mechanism (40) further comprises a second slide (41) and a second X-axis driving member (42), the second X-axis driving member (42) is provided on the frame (10) and connected to the second slide (41), the second X-axis driving member (42) is used for driving the second slide (41) to move, and the rotating cylinder (43) is rotatably provided on the second slide (41).
10. A laser cutting process, characterized in that it is based on the laser cutting device according to claim 4 and comprises the following steps:
step 1, clamping a pipe workpiece through a clamp (34), and enabling the pipe workpiece to pass through a rotary drum (43);
step 2, blocking the rear end of the pipe workpiece by using a second blocking piece, and driving the sealing cover (53) to move towards the front end of the pipe workpiece by using an axial driving piece (54) until the sealing gasket (55) is abutted with the end face of the pipe workpiece;
and 3, communicating an air inlet joint (56) with a high-pressure air source, carrying out laser cutting on a pipe workpiece positioned between the rotary cylinder (43) and the sealing cover (53) through the laser head (20), and simultaneously introducing high-pressure air into the pipe workpiece through the high-pressure air source to enable air flow to flow out from a cut by the laser, and cooling and deslagging the cut.
CN202311834388.0A 2023-12-28 2023-12-28 Laser cutting equipment and process Active CN117464204B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107738035A (en) * 2017-10-31 2018-02-27 苏州天弘激光股份有限公司 The laser cutting machine that a kind of light-wall pipe for online tuber is cut
CN212239718U (en) * 2020-04-21 2020-12-29 山东泰立化工设备有限公司 Heat exchanger tube head welding device
CN212350979U (en) * 2020-09-30 2021-01-15 上海电气核电设备有限公司 Welding protection device for thin-walled tube
CN113084442A (en) * 2021-04-29 2021-07-09 中国化学工程第十三建设有限公司 Pipeline welding auxiliary fixtures
CN217019068U (en) * 2022-03-09 2022-07-22 宏晟激光技术(佛山)有限公司 Precise laser pipe cutting machine
CN218695037U (en) * 2022-09-29 2023-03-24 佛山市南海区镁克德机器人科技有限公司 Laser pipe cutting machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107738035A (en) * 2017-10-31 2018-02-27 苏州天弘激光股份有限公司 The laser cutting machine that a kind of light-wall pipe for online tuber is cut
CN212239718U (en) * 2020-04-21 2020-12-29 山东泰立化工设备有限公司 Heat exchanger tube head welding device
CN212350979U (en) * 2020-09-30 2021-01-15 上海电气核电设备有限公司 Welding protection device for thin-walled tube
CN113084442A (en) * 2021-04-29 2021-07-09 中国化学工程第十三建设有限公司 Pipeline welding auxiliary fixtures
CN217019068U (en) * 2022-03-09 2022-07-22 宏晟激光技术(佛山)有限公司 Precise laser pipe cutting machine
CN218695037U (en) * 2022-09-29 2023-03-24 佛山市南海区镁克德机器人科技有限公司 Laser pipe cutting machine

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