WO2020122834A1 - Laser cutting machine having centering unit - Google Patents

Laser cutting machine having centering unit Download PDF

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Publication number
WO2020122834A1
WO2020122834A1 PCT/TR2019/050767 TR2019050767W WO2020122834A1 WO 2020122834 A1 WO2020122834 A1 WO 2020122834A1 TR 2019050767 W TR2019050767 W TR 2019050767W WO 2020122834 A1 WO2020122834 A1 WO 2020122834A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
mirror
quadrangular profile
quadrangular
profile
Prior art date
Application number
PCT/TR2019/050767
Other languages
French (fr)
Inventor
Ugur KARANFIL
Ferudun SERIFOGLU
Original Assignee
Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi
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 Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi filed Critical Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi
Priority to EP19897039.4A priority Critical patent/EP3894127A4/en
Publication of WO2020122834A1 publication Critical patent/WO2020122834A1/en

Links

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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/042—Automatically aligning the laser beam

Definitions

  • the present invention relates to a laser cutting machine having a centering unit for providing precise cutting of quadrangular profiles.
  • Laser cutting is a technology where laser rays are used for cutting metal and similar materials.
  • high powered laser rays are guided to the work piece in a computer controlled manner, and thereby, the region, which is subjected to the rays, is melted, burnt or evaporated.
  • distortion may occur on the surface of the quadrangular profile part which will be cut by means of laser, inner bending may occur on the edge surfaces and similar surface problems may occur. Even though not frequently occurs in aluminum profiles, surface wastes frequently occur particularly on black sheets and on profiles with stainless material. Particularly in small-sized quadrangular profiles and in long-sized profiles, distortions occur. This leads to problems in regular cutting and in centering of the quadrangular profile arriving at the cutting area. Moreover, in sensitive parts which are desired to be cut, tolerance is exceeded. This leads to increase of discard proportions and production costs.
  • the present invention relates to a laser cutting machine, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide determination of distortion and inner bending faults existing on the surface thereof and accordingly to provide realization of the center adjustment of the cutting head during cutting of quadrangular profiles by means of laser.
  • Another object of the present invention is to decrease discard proportion formed during cutting and to increase production efficiency by realizing centering in a correct manner in quadrangular profiles with distortion and inner bending faults on the surface thereof.
  • the present invention relates to a laser cutting machine for providing cutting of a quadrangular profile and having a mirror which moves rotationally and which tightens and holds said quadrangular profile, at least one support arm which supports lifting of the quadrangular profile held by said mirror, a second mirror which provides fixation of the quadrangular profile, advanced by the mirror, at the section where cutting will be realized, and at least one cutting head realizing the cutting process.
  • the subject matter laser cutting machine comprises a centering unit having at least one sensor, at least one processor where the center measure, detected by said sensor, is transferred, and at least one control unit which adjusts the position of said cutting head according to the information transferred from said processor.
  • Figure 1 is a representative perspective view of the subject matter laser cutting machine.
  • Figure 2 is a representative perspective view of the part where the cutting head exists in the subject matter laser cutting machine.
  • Figure 3 is a representative schematic view of centering unit of the quadrangular profile in the subject matter laser cutting machine.
  • FIG. 1 a representative perspective view of the subject matter laser cutting machine (1 ) is given.
  • the present invention relates to a laser cutting machine (1 ) having a centering unit (50) in order to provide precise cutting of quadrangular profiles (2).
  • said laser cutting machine (1 ) there is a mirror (10) which compresses and holds the quadrangular profile (2), which is to be cut, from pluralities of points according to the edge dimensions.
  • At least one support arm (20) supports lifting of the quadrangular profile (2) held by said mirror (10).
  • the quadrangular profile (2) supported by said support arm (20) is advanced forwardly by the mirror (10) and is transferred to the part where cutting will be realized.
  • FIG 2 a representative perspective view of the part where the cutting head (40) exists in the subject matter laser cutting machine (1 ) is given.
  • the mirror (10) which is moving rotationally, compresses and holds the quadrangular profile (2) through pluralities of points according to the diameter and thickness of the quadrangular profile (2). This process provides easy advancing of the quadrangular profile (2) and is realized for preventing sliding during rotation.
  • the quadrangular profile (2) After lifting of the support arms (20) according to the dimensions of the quadrangular profile (2), the quadrangular profile (2), which is to be cut, passes through the second mirror (30) and is driven towards the area where the laser cutting head (40) exists.
  • at least one sensor (51 ) is provided for determining the center position of the quadrangular profile (2). By means of said sensor (51 ), the location of the center of the quadrangular profile (2), whose position changes because of the distortions which occur due to bending and similar reasons, is determined.
  • FIG. 3 a representative schematic view of centering unit (50) in the subject matter laser cutting machine (1 ) is given.
  • said centering unit (50) there is a processor (52) to which the center position of the quadrangular profile (2) detected by the sensor (51 ) is transferred.
  • Said processor (52) compares the center information of the quadrangular profile (2), transferred from the sensor (51 ), with the predetermined value and calculates the distance with respect to the center.
  • command is transferred to a control unit (53) for providing adjustment of the position of the cutting head (40) by the processor (52).
  • Said control unit (53) adjusts the position of the cutting head (40) according to the information received from the processor (52). Thanks to this, the most precise cuttings are realized even in quadrangular profiles (2) which are not regularly linear. Thanks to the instantaneous measurements, the same precision is provided during cutting of the quadrangular profile (2).

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

Abstract

The present invention relates to a laser cutting machine (1) for providing cutting of a quadrangular profile (2) and having a mirror (10) which moves rotationally and which tightens and holds said quadrangular profile (2), at least one support arm (20) which supports lifting of the quadrangular profile (2) held by said mirror (10), a second mirror (30) which provides fixation of the quadrangular profile (2), advanced by the mirror (10), at the section where cutting will be realized, and at least one cutting head (40) realizing the cutting process. As an improvement, in order to provide center adjustment of the quadrangular profile (2), the subject matter laser cutting machine (1) comprises a centering unit (50) having at least one sensor (51), at least one processor (52) where the center measure, detected by said sensor (51), is transferred, and at least one control unit (53) which adjusts the position of said cutting head (40) according to the information transferred from said processor (52).

Description

LASER CUTTING MACHINE HAVING CENTERING UNIT
TECHNICAL FIELD
The present invention relates to a laser cutting machine having a centering unit for providing precise cutting of quadrangular profiles.
PRIOR ART
Laser cutting is a technology where laser rays are used for cutting metal and similar materials. In this technology, high powered laser rays are guided to the work piece in a computer controlled manner, and thereby, the region, which is subjected to the rays, is melted, burnt or evaporated.
In the known state of the art, in pipe cutting machines, there is a predetermined distance between the second mirror and the cutting head. The mirror which moves rotationally in the cutting area compresses the profile part, which will be cut, according to the diameter and thickness thereof. This process provides the profile to be driven forwardly in an easier manner and prevents sliding of the profile during rotation. Driving of the profile to the area where the cutting head is provided can be provided by means of methods like drawing.
In pipe cutting machines, distortion may occur on the surface of the quadrangular profile part which will be cut by means of laser, inner bending may occur on the edge surfaces and similar surface problems may occur. Even though not frequently occurs in aluminum profiles, surface wastes frequently occur particularly on black sheets and on profiles with stainless material. Particularly in small-sized quadrangular profiles and in long-sized profiles, distortions occur. This leads to problems in regular cutting and in centering of the quadrangular profile arriving at the cutting area. Moreover, in sensitive parts which are desired to be cut, tolerance is exceeded. This leads to increase of discard proportions and production costs.
As a result, because of all of the abovementioned problems, an improvement is required in the related technical field. BRIEF DESCRIPTION OF THE INVENTION
The present invention relates to a laser cutting machine, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
An object of the present invention is to provide determination of distortion and inner bending faults existing on the surface thereof and accordingly to provide realization of the center adjustment of the cutting head during cutting of quadrangular profiles by means of laser.
Another object of the present invention is to decrease discard proportion formed during cutting and to increase production efficiency by realizing centering in a correct manner in quadrangular profiles with distortion and inner bending faults on the surface thereof.
In order to realize the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention relates to a laser cutting machine for providing cutting of a quadrangular profile and having a mirror which moves rotationally and which tightens and holds said quadrangular profile, at least one support arm which supports lifting of the quadrangular profile held by said mirror, a second mirror which provides fixation of the quadrangular profile, advanced by the mirror, at the section where cutting will be realized, and at least one cutting head realizing the cutting process. Accordingly, in order to provide center adjustment of the quadrangular profile, the subject matter laser cutting machine comprises a centering unit having at least one sensor, at least one processor where the center measure, detected by said sensor, is transferred, and at least one control unit which adjusts the position of said cutting head according to the information transferred from said processor. Thus, during cutting of quadrangular profiles by means of laser, the distortion and the inner bending faults existing on the surface are determined and accordingly, center adjustment of the cutting head is realized.
BRIEF DESCRIPTION OF THE FIGURES
Figure 1 is a representative perspective view of the subject matter laser cutting machine.
Figure 2 is a representative perspective view of the part where the cutting head exists in the subject matter laser cutting machine.
Figure 3 is a representative schematic view of centering unit of the quadrangular profile in the subject matter laser cutting machine. DETAILED DESCRIPTION OF THE INVENTION
In this detailed description, the subject matter laser cutting machine (1 ) is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.
In Figure 1 , a representative perspective view of the subject matter laser cutting machine (1 ) is given. The present invention relates to a laser cutting machine (1 ) having a centering unit (50) in order to provide precise cutting of quadrangular profiles (2). In said laser cutting machine (1 ), there is a mirror (10) which compresses and holds the quadrangular profile (2), which is to be cut, from pluralities of points according to the edge dimensions. At least one support arm (20) supports lifting of the quadrangular profile (2) held by said mirror (10). The quadrangular profile (2) supported by said support arm (20) is advanced forwardly by the mirror (10) and is transferred to the part where cutting will be realized. By means of a second mirror (30) positioned in the cutting area, the quadrangular profile (2), which is to be cut, is compressed and fixed. At least one centering unit (50) is provided for providing correct centering and regular cutting of the quadrangular profile (2) which is to be cut by means of at least one cutting head (40).
In Figure 2, a representative perspective view of the part where the cutting head (40) exists in the subject matter laser cutting machine (1 ) is given. In the laser cutting machine (1 ), the mirror (10), which is moving rotationally, compresses and holds the quadrangular profile (2) through pluralities of points according to the diameter and thickness of the quadrangular profile (2). This process provides easy advancing of the quadrangular profile (2) and is realized for preventing sliding during rotation. After lifting of the support arms (20) according to the dimensions of the quadrangular profile (2), the quadrangular profile (2), which is to be cut, passes through the second mirror (30) and is driven towards the area where the laser cutting head (40) exists. In this part, at least one sensor (51 ) is provided for determining the center position of the quadrangular profile (2). By means of said sensor (51 ), the location of the center of the quadrangular profile (2), whose position changes because of the distortions which occur due to bending and similar reasons, is determined.
In Figure 3, a representative schematic view of centering unit (50) in the subject matter laser cutting machine (1 ) is given. In said centering unit (50), there is a processor (52) to which the center position of the quadrangular profile (2) detected by the sensor (51 ) is transferred. Said processor (52) compares the center information of the quadrangular profile (2), transferred from the sensor (51 ), with the predetermined value and calculates the distance with respect to the center. Afterwards, command is transferred to a control unit (53) for providing adjustment of the position of the cutting head (40) by the processor (52). Said control unit (53) adjusts the position of the cutting head (40) according to the information received from the processor (52). Thanks to this, the most precise cuttings are realized even in quadrangular profiles (2) which are not regularly linear. Thanks to the instantaneous measurements, the same precision is provided during cutting of the quadrangular profile (2).
Thus, by means of realizing centering in a correct manner in quadrangular profiles (2) with distortion and inner bending faults on the surface thereof; the discard proportion, which occurs during cutting, decreases and the production efficiency increases.
The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.
REFERENCE NUMBERS
1 Laser cutting machine
2 Quadrangular profile
10 Mirror
20 Support arms 30 Second mirror 40 Cutting head 50 Centering unit 51 Sensor
52 Processor
53 Control unit

Claims

1. A laser cutting machine (1 ) for providing cutting of a quadrangular profile (2) and having a mirror (10) which moves rotationally and which tightens and holds said quadrangular profile (2), at least one support arm (20) which supports lifting of the quadrangular profile (2) held by said mirror (10), a second mirror (30) which provides fixation of the quadrangular profile (2), advanced by the mirror (10), at the section where cutting will be realized, and at least one cutting head (40) realizing the cutting process, wherein in order to provide center adjustment of the quadrangular profile (2), the subject matter laser cutting machine (1 ) comprises a centering unit (50) having at least one sensor (51 ), at least one processor (52) where the center measure, detected by said sensor (51 ), is transferred, and at least one control unit (53) which adjusts the position of said cutting head (40) according to the information transferred from said processor (52).
PCT/TR2019/050767 2018-12-12 2019-09-17 Laser cutting machine having centering unit WO2020122834A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19897039.4A EP3894127A4 (en) 2018-12-12 2019-09-17 Laser cutting machine having centering unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/19177A TR201819177A2 (en) 2018-12-12 2018-12-12 LASER CUTTING MACHINE WITH CENTERING UNIT
TR2018/19177 2018-12-12

Publications (1)

Publication Number Publication Date
WO2020122834A1 true WO2020122834A1 (en) 2020-06-18

Family

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PCT/TR2019/050767 WO2020122834A1 (en) 2018-12-12 2019-09-17 Laser cutting machine having centering unit

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EP (1) EP3894127A4 (en)
TR (1) TR201819177A2 (en)
WO (1) WO2020122834A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096880A1 (en) * 1970-06-11 1972-03-03 Mitsubishi Electric Corp Laser beam machining appts - automatically adjusted using control beam passing through semi-transparent mirrors
WO2013073215A1 (en) 2011-11-17 2013-05-23 株式会社 アマダ Automatic programming device and automatic programming method for laser processing machine, and laser processing system
CN203018920U (en) * 2013-01-14 2013-06-26 昆山科德优激光设备有限公司 Laser pipe-cutting device
JP5272223B2 (en) 2008-12-01 2013-08-28 コマツ産機株式会社 Laser processing method for pipes
US20140103019A1 (en) 2011-05-12 2014-04-17 Adige S.P.A. Methods for scanning tubes on laser cutting machines
KR20140071532A (en) 2012-11-19 2014-06-12 주식회사 한광 Method for measuring bar-like workpieces radius of curvature of laser machining apparatus for machining bar-like workpieces
CN107442953A (en) 2017-09-14 2017-12-08 武汉唯拓光纤激光工程有限公司 A kind of compensation method of laser pipe cutter machining deviation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096880A1 (en) * 1970-06-11 1972-03-03 Mitsubishi Electric Corp Laser beam machining appts - automatically adjusted using control beam passing through semi-transparent mirrors
JP5272223B2 (en) 2008-12-01 2013-08-28 コマツ産機株式会社 Laser processing method for pipes
US20140103019A1 (en) 2011-05-12 2014-04-17 Adige S.P.A. Methods for scanning tubes on laser cutting machines
WO2013073215A1 (en) 2011-11-17 2013-05-23 株式会社 アマダ Automatic programming device and automatic programming method for laser processing machine, and laser processing system
KR20140071532A (en) 2012-11-19 2014-06-12 주식회사 한광 Method for measuring bar-like workpieces radius of curvature of laser machining apparatus for machining bar-like workpieces
CN203018920U (en) * 2013-01-14 2013-06-26 昆山科德优激光设备有限公司 Laser pipe-cutting device
CN107442953A (en) 2017-09-14 2017-12-08 武汉唯拓光纤激光工程有限公司 A kind of compensation method of laser pipe cutter machining deviation

Also Published As

Publication number Publication date
TR201819177A2 (en) 2019-01-21
EP3894127A4 (en) 2022-01-26
EP3894127A1 (en) 2021-10-20

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