WO2018101584A1 - Machine de gravure au laser dotée d'une fonction d'alimentation et de focalisation automatique - Google Patents

Machine de gravure au laser dotée d'une fonction d'alimentation et de focalisation automatique Download PDF

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Publication number
WO2018101584A1
WO2018101584A1 PCT/KR2017/010112 KR2017010112W WO2018101584A1 WO 2018101584 A1 WO2018101584 A1 WO 2018101584A1 KR 2017010112 W KR2017010112 W KR 2017010112W WO 2018101584 A1 WO2018101584 A1 WO 2018101584A1
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WO
WIPO (PCT)
Prior art keywords
unit
laser
focusing
processing
fixing jig
Prior art date
Application number
PCT/KR2017/010112
Other languages
English (en)
Korean (ko)
Inventor
주재성
호범석
Original Assignee
주식회사 알이디테크놀로지
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
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Publication of WO2018101584A1 publication Critical patent/WO2018101584A1/fr

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    • 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
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • 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
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
    • 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
    • B23K26/046—Automatically focusing the laser beam
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • 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
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/359—Working by laser beam, e.g. welding, cutting or boring for surface treatment by providing a line or line pattern, e.g. a dotted break initiation line
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles

Definitions

  • the present invention relates to a laser engraver, and in detail, the automatic supply that can increase the process speed, processing precision and convenience even if a large number of processing materials are processed by performing a height measurement and automatic focusing of the laser to the material automatically supplied by the conveyor method And a laser engraver having a focusing function.
  • a laser engraver is a device that generates letters, symbols, patterns, or pictures with a laser beam on various materials such as wood, plastic, metal, stone, or glass.
  • the material is fixed with a vice so that the material does not shake during processing.
  • accurate alignment of the material with respect to the position of the laser module is required.
  • the work efficiency is very low.
  • the focusing length which is an important factor in the processing using laser, to input the height measurement result of the material directly, There was discomfort.
  • a method of supplying the material through an automatic supply means such as a conveyor method is also used.However, when the work is finished, the fixing means for fixing the material and the focusing length for the processing are initialized and then the work is performed. There was still inconvenience such as resetting to the value accordingly.
  • the present invention was created to solve the above problems, an object of the present invention is to perform an automatic continuous supply and processing of the material, to measure the height of the input material using the camera and to perform automatic focusing of the laser. It is to provide a laser engraver with automatic feeding and focusing function to increase the processing speed, processing precision and convenience when processing a variety of processing materials.
  • the present invention is a laser engraver having a laser oscillator and an optical system comprising a laser module unit for emitting a laser beam for processing, and a first transfer unit for moving the laser module unit in the XY axis direction according to a control signal.
  • a second transfer unit configured to output a display laser in addition to the processing laser, and to adjust a focusing position by moving the laser module unit in the Z-axis direction according to a control signal;
  • Fixing jig unit for temporarily fixing the workpiece;
  • a conveyor unit having a plurality of coupling belts having a plurality of coupling parts detachable from the fixing jig at a predetermined interval, and a driven roller and a driving roller rotating the conveyor belt in one direction;
  • a camera unit photographing a spot formed on a workpiece through the laser for processing;
  • a first calculation unit for analyzing the image photographed by the camera unit and calculating a height of a target material and a focusing value of the laser module unit by analyzing a spot position of a display laser formed by classifying a material not installed, a reference material, and a processed material;
  • a control unit which receives power and controls the laser module unit and the first transfer unit and performs processing, and controls the second transfer unit by reflecting the focusing value;
  • the second operation unit for analyzing the image taken by the camera unit to calculate the correction value for the reference position by photographing the position of the workpiece according to the machining position; Further comprising, the control unit may be configured to align and transfer the target material by controlling the conveyor to reflect the correction value.
  • the coupling portion protrudes upward, but the upper portion is made of a first coupling projection of the expanded shape, the fixing jig portion is coupled to the second coupling projection to the first coupling projection on the lower side, the second by an external operation
  • the coupling protrusion may be provided to move away from the first coupling protrusion.
  • control unit is located on the rear side of the conveyor portion and the fixing jig coupled to the conveyor belt is transferred to the operation unit for operating the separation unit, the fixing jig is separated from the conveyor belt and the seating portion and the seating portion is extended
  • FIG. 2 is a conceptual diagram illustrating a focusing algorithm according to the present invention
  • FIG. 3 is a cross-sectional view showing a removable structure of the fixing jig unit according to another embodiment of the present invention.
  • Figure 4 is a partial perspective view showing a recovery structure of the fixing jig portion according to another embodiment of the present invention.
  • FIG. 5 is a block diagram showing a configuration and a connection relationship according to a preferred embodiment of the present invention.
  • the present invention is basically the laser module unit 110, the first transfer unit 120, the second transfer unit 130, the fixed jig unit 140 and And a main configuration of the conveyor unit 150, the camera unit 160, and the control unit 180.
  • the laser module unit 110 is basically a laser oscillator for generating a laser and an optical system configured to emit a laser generated by the laser oscillator to the material side is a configuration of a conventional laser module for emitting a laser beam for processing.
  • the first transfer part 120 is installed on the stationary body 101 located above the workpiece and moves the laser module 110 in the X-axis and Y-axis directions according to an input control signal. It is provided with a bar (Bar) formed in the X-axis and Y-axis direction and the two motor module is formed to move along the bar, such as the structure of the galvano scan head. Since the configuration of the laser module unit 110 and the first transfer unit 120 is a known configuration used in the existing laser processing apparatus, a detailed description thereof will be omitted in order to prevent the object of the invention from being blurred.
  • the laser module unit 110 is configured to output a laser with a relatively weak output of a level that does not cause damage to the material in addition to the processing laser for processing the material.
  • the laser module unit 110 is provided with a switching unit 111 to use the same oscillator and optical system to control the output of the laser to selectively output the processing laser and the display laser, or the level of the laser pointer weak output
  • a switching unit 111 to use the same oscillator and optical system to control the output of the laser to selectively output the processing laser and the display laser, or the level of the laser pointer weak output
  • the second transfer unit 130 is configured to adjust the focusing position by moving the laser module unit 110 in the Z-axis direction according to a control signal.
  • the height of the laser module unit 110 is adjusted through an electric step motor and a gear, for example, a rack and a pinion gear.
  • the various engraving processing including engraving is made, it is important to adjust the focusing position of the laser corresponding to the processing depth.
  • the Z-axis position control of the laser module unit 110 through the second transfer unit 130 capable of precise control.
  • the fixing jig unit 140 is literally a jig for fixing the workpiece. It is composed of various shapes according to the shape of the workpiece, and is temporarily fixed to prevent shaking during laser processing of the workpiece. Processed materials can be a variety of accessories, as well as a variety of stationery and souvenirs such as keys, stamps, pens, lighters. In addition, in the case of a large amount of processing, the fixing jig is made in the form of a dedicated jig that can be temporarily fixed by making it suitable for the processing material.
  • the fixing jig portion can be made in the form of a universal jig that can be fixed in response to various forms.
  • the accompanying drawings show a fixing jig unit 140 capable of fixing a processing material having a length such as a spoon or a pen, the present invention may be applied to various types of custom-made or commercially available dedicated / universal jigs, without being limited thereto. .
  • a conveyor belt 151 and a driven roller 154 and a driving roller 155 for rotating the conveyor belt 151 in one direction are provided as the conveyor system is adopted for automatic supply of a plurality of materials.
  • One conveyor unit 150 is provided.
  • the driven roller 154 and the driving roller 155 are installed at both ends of the inner side of the conveyor belt 151 to support and rotate the conveyor belt 151, and the driving motor 157 to the driving roller 155. Is connected.
  • the fixing jig unit 140 is placed on the conveyor belt 151 and the processing of the conveyance and the material is made, and in order to prevent sagging of the conveyor belt 151 in the middle part, a separate additional roller or plate-shaped support ( 156 is provided inside the conveyor belt.
  • the structure of the conveyor unit 150 is not significantly different from a conventional conveyor, but a plurality of coupling portions 152 to which the fixing jig unit 140 is detached to the conveyor belt 151 above the conveyor belt 151 are formed at regular intervals and stacked. The movement of the fixed jig unit 140 is prevented during movement and laser processing and precise processing is made.
  • the camera unit 160 is installed together with the laser module unit 110 and the stationary body 101 on which the first transfer unit 120 is formed, including the position of the processing material located on the lower side of the processing material through the processing laser. The spot formed in the picture is taken.
  • control unit 180 is basically a power corresponding to the MCU is configured to receive a control command by the control command, including the laser module unit 110 and the switching unit 111, the first transfer unit 120 and the second transfer unit
  • the controller 130 and the camera unit 160 are controlled, and include a first operator 181 and a second operator 182.
  • the first operation unit 181 is configured to analyze the image photographed by the camera unit 160, and photographs the spot positions of the laser for display formed by classifying the material non-installation state, reference material installation state, and processing material installation state, respectively. And save it.
  • the height of the target material and the focusing value of the laser module unit 110 are calculated through comparative analysis of each stored image and the newly photographed image.
  • FIG. 2 is a conceptual diagram illustrating a focusing algorithm according to the present invention.
  • the display laser is substantially displayed at the point A of the screen photographed corresponding to the upper surface of the conveyor belt.
  • the reference material may be a material having a separate unit dimension for focusing value calculation criteria or, in some cases, a fixed jig unit 140 in which a processed material is not installed, and outputs a display laser.
  • the display laser is displayed at the D point corresponding to the position.
  • the controller 180 controls the second transfer unit 130 by reflecting the focusing value when outputting the laser for processing through the laser module unit 110 so that the laser processing is performed at an accurate depth.
  • the first transfer unit 120 controls the first transfer unit 120 to be made a piece of the desired pattern.
  • an object of the present invention is to In order to prevent blurring, a detailed description thereof will be omitted.
  • the camera unit 160 may be utilized for alignment of the workpiece before processing, in addition to the above-described focusing value calculation.
  • the controller 180 further includes a second operation unit 182 that analyzes the image photographed by the camera unit 160 and photographs the position of the workpiece according to the machining position to calculate a correction value for the reference position. Done.
  • the processing material is disposed at the correct position under the laser module unit 110, accurate processing can be performed, and the processing is fixed to the fixing jig unit 140 and the coupling unit 152 by controlling the driving motor 157.
  • the supply situation is photographed through the camera unit 160. In this case, a correction value for the difference between the preset reference position and the position detected through the current shooting is calculated.
  • the controller 180 is configured to align the material in the correct position by controlling the conveyor unit 150, that is, the driving motor 157, in consideration of the correction value.
  • the coupling unit 152 is configured in a plurality of protrusions protruding upwards.
  • a plurality of grooves corresponding to the protrusion may be formed under the fixing jig unit 140 to limit the movement of the front, rear, left and right.
  • the thickness of the fixing jig unit 140 may be configured in various ways depending on the size of the material to be processed. What is needed is a way to achieve this.
  • FIG. 3 is a cross-sectional view illustrating a detachable structure of a fixing jig part according to another exemplary embodiment of the present invention, wherein the coupling part 152 protrudes upward and has a first coupling protrusion 153 having an extended shape.
  • the first coupling protrusion 153 may be formed in various forms, and in the accompanying drawings, the upper ends of the pair of first coupling protrusions 153 are bent inward to show an expanded shape.
  • the fixing jig unit 140 has a second coupling protrusion 141 fastened to the first coupling protrusion 153 at a lower side thereof, and the second coupling protrusion 141 moves within a predetermined range. And it is configured in the space formed under the fixing jig portion 140 so that the fastening and separation for the first coupling protrusion 153 can be made.
  • the fixing jig unit 140 is protruded to the left and right outer side to separate from the first coupling protrusion 153 by moving the second coupling protrusion 141 by the operation, that is, the pressurizing portion 142 is formed
  • a spring 143 is provided to act to maintain the coupling state of the second coupling protrusion 141 with the first coupling protrusion 153.
  • the worker installs the fixing jig 140 to the coupling part 152 of the conveyor belt 151 while pressing the separating part 142, and releases the pressure of the separating part 142 to release the spring ( Through the action of 143, the second coupling protrusion 141 moves and is firmly fixed while maintaining the coupling state with the first coupling protrusion 153.
  • Figure 4 is a partial perspective view showing a recovery structure of the fixing jig portion according to another embodiment of the present invention, through the detachable structure of the fixing jig portion 140 described above, and easily remove the fixing jig portion 140 in a state where the processing is completed and The structure of the collection part which can be recovered is shown.
  • the recovery unit is located above the rear portion of the conveyor unit 150 from which the fixed jig unit 140 is finished, the operation unit 171 and the seating unit 172 and the slide unit 173 in detail configuration, The stack 174 is provided.
  • the operation unit 171 operates the separation unit 142 as the fixed jig unit 140 coupled to the conveyor belt 151 is transferred, ie, presses the first coupling protrusion 153 and the second coupling protrusion 141. In a configuration to release the coupling state of the), it is fixedly installed to be able to contact both sides of the fixed jig portion 140 to move.
  • the fixing jig unit 140 moves together with the conveyor belt 151 and the separating unit 142 and the operating unit 171 are provided so that the separating unit 142 protruding on both sides may be pressed against the operating unit 171. It is preferable to form inclined surfaces at the contact portions on one or both sides of the substrate.
  • the seating part 172 is a contact portion of the conveyor belt 151 and the fixing jig 140 as the fixing jig unit 140 moving together with the conveyor belt 151 is disassembled by the operation unit 171.
  • the inclined surface can be formed so that the contact portion of the conveyor belt 151 and the fixing jig portion 140 can be easily dug.
  • the slide portion 173 extends to the rear side of the seating portion 172 and is a rail-shaped structure for slidingly moving the fixing jig portion 140 seated separately from the conveyor belt 151 to the rear side.
  • the movable jig unit 140 includes a stacking unit 174 on which the movable jig unit 140 is stacked, and is configured to easily collect and recover the fixed jig unit 140 where the finished material is fixed. .

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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

L'invention concerne une machine à graver au laser dotée d'une fonction d'alimentation et de focalisation automatique, ladite machine effectuant une mesure de hauteur et une focalisation laser automatique pour un matériau acheminé automatiquement par transporteur, de sorte à accroître la vitesse de traitement, la précision d'usinage et l'aspect pratique, même lorsqu'une pluralité de pièces à travailler diverses sont usinées.
PCT/KR2017/010112 2016-11-29 2017-09-15 Machine de gravure au laser dotée d'une fonction d'alimentation et de focalisation automatique WO2018101584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0160079 2016-11-29
KR1020160160079A KR101938812B1 (ko) 2016-11-29 2016-11-29 자동 공급 및 포커싱 기능을 갖는 레이저 조각기

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WO2018101584A1 true WO2018101584A1 (fr) 2018-06-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109604889A (zh) * 2018-12-20 2019-04-12 昆山吉纳尔车料有限公司 一种脚踏车脚踏杆自动焊接装置及其焊接方法
CN112846499A (zh) * 2020-12-29 2021-05-28 武汉华工激光工程有限责任公司 玻璃与金属封装的超快激光焊接方法以及系统
WO2021116176A1 (fr) * 2019-12-10 2021-06-17 Michael Strasser Dispositif et procédé d'usinage de surface d'une pièce, notamment d'une plaque en pierre naturelle

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CN109108471A (zh) * 2018-07-16 2019-01-01 朴贞实 一种箱包的打标装置
CN109732212A (zh) * 2019-01-31 2019-05-10 中国地质大学（武汉） 一种基于视觉伺服的二维激光雕刻机
CN112077458B (zh) * 2020-08-17 2022-04-01 东莞理工学院 一种可自动上料具有废料收集功能的激光切割机

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109604889A (zh) * 2018-12-20 2019-04-12 昆山吉纳尔车料有限公司 一种脚踏车脚踏杆自动焊接装置及其焊接方法
WO2021116176A1 (fr) * 2019-12-10 2021-06-17 Michael Strasser Dispositif et procédé d'usinage de surface d'une pièce, notamment d'une plaque en pierre naturelle
CN112846499A (zh) * 2020-12-29 2021-05-28 武汉华工激光工程有限责任公司 玻璃与金属封装的超快激光焊接方法以及系统

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KR20180060516A (ko) 2018-06-07

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