WO2013057998A1 - レーザ加工機 - Google Patents
レーザ加工機 Download PDFInfo
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- WO2013057998A1 WO2013057998A1 PCT/JP2012/068979 JP2012068979W WO2013057998A1 WO 2013057998 A1 WO2013057998 A1 WO 2013057998A1 JP 2012068979 W JP2012068979 W JP 2012068979W WO 2013057998 A1 WO2013057998 A1 WO 2013057998A1
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- laser beam
- irradiation position
- optical axis
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- target irradiation
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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
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
-
- 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
- B23K26/042—Automatically aligning 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0665—Shaping the laser beam, e.g. by masks or multi-focusing by beam condensation on the workpiece, e.g. for focusing
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
-
- 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
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
Definitions
- the present invention relates to a laser processing machine that performs processing by irradiating an arbitrary portion of a workpiece with a laser beam.
- a test pattern is laser-processed on a test piece, and then this is observed with a microscope to measure the error between the test pattern and the actually formed pattern, and a correction amount that reduces that error. was added to the command value for the galvano scanner.
- An object of the present invention is to provide a laser processing machine that can easily calibrate an error in a laser beam irradiation position.
- a laser beam machine is for performing processing by irradiating a workpiece with a laser beam, and directing a laser beam oscillated from a laser oscillator toward a predetermined surface on which the workpiece is disposed.
- a camera sensor that captures an image of the surrounding area, an image captured by the camera sensor, and a target irradiation position commanded to the optical axis operation mechanism on the predetermined surface and an optical axis position of the actual laser beam.
- An error calibration mechanism for detecting an error, and based on the error, the optical axis operation for irradiating the target irradiation position with a laser beam during processing It is possible to determine a correction amount of the command to be given to the structure.
- the laser processing machine is a laser processing machine for irradiating a workpiece with a laser beam, and processing the laser beam oscillated from a laser oscillator.
- a mirror that reflects toward the surface, an optical axis operation mechanism that positions the optical axis of the laser beam to a desired target irradiation position on the predetermined surface by changing the direction of the mirror, a target irradiation position on the predetermined surface, and The target irradiation position instructed to the optical axis operation mechanism on the predetermined surface with reference to the peripheral region and a camera sensor that captures the light spot of the laser beam irradiated on the predetermined surface and an image captured by the camera sensor And an error calibration mechanism that detects an error between the position of the optical axis of the actual laser beam and the laser beam during processing based on the error. It can be of determining the correction amount of the command to be given to the optical axis operation mechanism in order to irradiate the target irradiation position.
- a beam splitter is arranged on the optical path between the laser oscillator and the mirror, and the target irradiation position on the predetermined surface and the surrounding area are imaged by the camera sensor via the mirror and the beam splitter.
- the optical axis of the camera sensor can be brought as close as possible to the optical axis of the laser beam, and both can be superimposed.
- the degree of freedom in designing the camera sensor is increased.
- a grid pattern provided on the predetermined plane and indicating a position coordinate of each location on the predetermined plane is imaged by the camera sensor, and the error calibration mechanism detects the error based on the grid pattern appearing in the captured image. If so, it is possible to accurately detect an error between the target irradiation position on the predetermined surface and the position of the optical axis of the actually irradiated laser beam.
- the error calibration mechanism is imaged by the camera sensor and an irradiation position command unit that commands the optical axis operation mechanism to position the optical axis of the laser beam at the target irradiation position on the predetermined surface.
- An error detection unit that calculates an error between the target irradiation position on the predetermined surface with reference to the image and the position of the optical axis of the actual laser beam, and the target irradiation position at the time of processing based on the error calculated by the error detection unit
- a correction amount storage unit that determines and stores a correction amount of a command to be given to the optical axis operation mechanism in order to irradiate the optical axis.
- the perspective view which shows the laser beam machine which concerns on one Embodiment of this invention The perspective view which shows the laser irradiation apparatus of the laser processing machine.
- the flowchart which shows the procedure of the process which the laser beam machine performs at the time of a process operation The perspective view which shows the laser beam machine which concerns on one Embodiment of this invention.
- the laser processing machine 0 of the present embodiment includes an installation table 4 that supports a workpiece to be processed, and a laser irradiation device that irradiates a laser beam L toward the workpiece. 1 and can perform laser processing on an arbitrary portion of the workpiece.
- the installation table 4 supports the workpiece during laser processing.
- a grid pattern that suggests the position coordinates of each location on the surface is provided on the upper surface of the installation table 4 that is a predetermined surface on which the workpiece is placed.
- the form of the grid pattern is not uniquely limited, in the example shown in FIG. 6, an infinite number of points (for example, 1 mm intervals) along the x-axis direction and the y-axis direction orthogonal to the x-axis (for example, 1 mm) (Circle with a diameter of 0.5 mm) 41 is attached.
- a grid or the like may be attached to the upper surface of the installation table 4 as a grid pattern.
- the installation base 4 may be immovable with respect to the laser irradiation apparatus 1 or may be relatively displaceable along the x-axis direction and / or the y-axis direction with respect to the laser irradiation apparatus 1. In the latter case, the installation table 4 may be supported on the XY stage. However, the installation table 4 is fixed at a predetermined reference position during calibration. The installation table 4 is not displaced during the calibration.
- the laser irradiation apparatus 1 includes a laser oscillator (not shown), galvano scanners 11 and 12 that scan a laser beam L oscillated from the laser oscillator, and a condensing light that condenses the laser beam L. And a lens 13.
- the galvano scanners 11 and 12 rotate the mirrors 112 and 122 that reflect the laser beam L by means of servo motors or stepping motors 111 and 121 that are optical axis operation mechanisms. By changing the direction of the mirrors 112 and 122, the optical axis of the beam L can be displaced.
- both an X-axis galvano scanner 11 that changes the optical axis of the beam L in the X-axis direction and a Y-axis galvano scanner 12 that changes the optical axis of the beam L in the Y-axis direction are provided.
- the irradiation position of the beam L on the upper surface of 4 can be controlled in two dimensions in the x-axis direction and the y-axis direction.
- the condenser lens 13 is, for example, an F ⁇ lens.
- the irradiation position of the laser beam L irradiated on the upper surface of the installation table 4 is affected by rotational positioning errors of the galvano scanners 11 and 12.
- optical distortion due to the condenser lens 13 also occurs.
- the error in the irradiation position of the laser beam L tends to increase as the distance from the center of the scanning range of the galvano scanners 11 and 12 increases.
- the state is schematically shown by reference symbol A in FIG.
- the control device 5 serving as an error calibration mechanism for controlling the galvano scanners 11 and 12 includes a processor 5a, a main memory 5b, an auxiliary storage device 5c, an I / O interface 5d, etc., and these are the controller 5e. It is controlled by (system controller, I / O controller, etc.) and operates in cooperation.
- the auxiliary storage device 5c is a flash memory, a hard disk drive, or the like.
- the I / O interface 5d may include a servo driver (servo controller).
- the program to be executed by the control device 5 is stored in the auxiliary storage device 5c, and is read into the main memory 5b and decoded by the processor 5a when the program is executed. And the control apparatus 5 follows the program, and the irradiation position command part 51, the image acquisition part 52, the calibration position data storage part 53, the error detection part 54, the correction amount storage part 55, and the processing position data storage part shown in FIG. 56 and a function as the processing time control unit 57.
- the irradiation position command unit 51 instructs the laser irradiation apparatus 1 to irradiate the target irradiation position with the laser beam L.
- the irradiation position command unit 51 inputs a control signal corresponding to the coordinates to the galvano scanners 11 and 12 in order to irradiate the laser beam L to the (x, y) coordinates of the target irradiation position on the upper surface of the installation table 4.
- the angle of 112,122 is operated.
- the image acquisition unit 52 receives and acquires an image captured by the camera sensor 2, and temporarily stores it in a required storage area of the main memory 5b or the auxiliary storage device 5c.
- the camera sensor 2 images the target irradiation position on the upper surface of the installation table 4 and its surrounding area and / or the light spot of the laser beam L actually irradiated on the upper surface of the installation table 4. The arrangement of the camera sensor 2 will be described later.
- the calibration position data storage unit 53 stores calibration position data.
- the laser beam L is irradiated toward a plurality of points in the XY plane coordinate system on the upper surface of the installation table 4, an error of the irradiation position at each point is detected, and correction for each point is performed. Determine the amount.
- error detection and correction amount determination are performed for 6000 to 7000 points scattered on the upper surface of the installation table 4, and the (x, y) coordinates of each of the 6000 to 7000 points are determined. It is stored as calibration position data.
- the error detection unit 54 acquires an error between the target irradiation position of the laser beam L and the actual irradiation position.
- the error detection unit 54 reads out the calibration position data to obtain the (x, y) coordinates of the target irradiation position of the laser beam L, and sends a control signal corresponding to the target coordinates via the irradiation position command unit 51. Input to the scanners 11 and 12. Then, referring to the image acquired by the image acquisition unit 52, as shown in FIG. 6, the coordinates of the calibration position data, that is, the target irradiation position coordinates T (x T , y commanded to the galvano scanners 11 and 12).
- the correction amount storage unit 55 determines a correction amount of a command to be given to the laser irradiation apparatus 1 to irradiate the target irradiation position during processing.
- the target irradiation position coordinates (x T , y T ), the x-axis direction error ⁇ x, and the y-axis direction error ⁇ y are substituted into predetermined function expressions, and the control signal x given to the galvano scanners 11, 12 is set.
- the axial direction correction amount and the y-axis direction correction amount are calculated, and the correction amounts are stored in the main memory 5b or the auxiliary storage device 5c in association with the previous target coordinates (x T , y T ).
- the machining position data storage unit 56 stores machining position data.
- the processing position data storage unit 56 includes CAD data or the like that defines which part of the workpiece is irradiated with the laser beam L, or (x, y) coordinates of a plurality of points that are irradiated with the laser beam L during processing. Stored as machining position data.
- the processing control unit 57 controls the laser irradiation apparatus 1 so as to irradiate the laser beam L to the irradiation position specified by the processing position data.
- the processing control unit 57 reads the processing position data, knows the (x, y) coordinates of the target irradiation position of the laser beam L, and reads the correction amount associated with the target coordinates.
- the correction amount directly connected to the target coordinates is not stored in the correction amount storage unit 55, a plurality of correction amounts associated with a plurality of coordinates close to the target coordinates are read out, and an appropriate correction amount is obtained by their interpolation. Calculate.
- a control signal corresponding to a coordinate obtained by adding a correction amount to the target coordinate is input to the galvano scanners 11 and 12 via the irradiation position command unit 51.
- the original target irradiation position is correctly irradiated with the laser beam L.
- the camera sensor 2 is, for example, a CCD sensor or a CMOS sensor.
- the camera sensor 2 images the target irradiation position on the upper surface of the installation table 4 and the surrounding area, which are reflected on the mirrors 112 and 122 of the galvano scanners 11 and 12.
- an optical module including a beam splitter 3 typified by a half mirror is disposed on the optical path between the laser oscillator and the mirror 122, and the light is collected from the installation table 4 side.
- a beam splitter 3 separates a part of the light beam guided through the lens 13 and the mirrors 112 and 122 (including the grid pattern in the peripheral region of the target irradiation position on the upper surface of the installation table 4 and the light spot of the laser beam L). Then, the light is incident on the camera sensor 2 through the imaging lens 7 to pick up an image of the light flux.
- the transmission plate 6 that is interposed between the beam splitter 3 and the mirror 122 and transmits the beam L is an optical path cancellation window that cancels out the displacement of the optical axis due to the refraction of the laser beam L that transmits the beam splitter 3.
- the beam splitter 3 and the window 6 paired therewith must be removed from the optical path during laser processing.
- the beam splitter 3 and the window 6 are unitized, and an automatic or manual drive device for moving the unit is provided, and the unit is inserted into the optical path between the laser oscillator and the mirror 122 during calibration. It is preferable to perform an advance / retreat operation for retracting the unit from the optical path during laser processing.
- the calibration of the irradiation position of the laser beam L is performed before the laser processing operation.
- a procedure of processing executed by the control device 5 during calibration is shown in the flowchart of FIG.
- the control device 5 reads the coordinates of the target irradiation position included in the stored calibration position data (step S1), and positions the optical axis of the laser beam L at the read coordinates to mirrors 112 of the galvano scanners 11 and 12. , 122 are operated (step S2).
- the laser is oscillated from the laser oscillator to irradiate the upper surface of the installation table 4 with the laser beam L (step S3), and the target irradiation position on the upper surface of the installation table 4 and the surrounding area and the surface are irradiated.
- the light spot (that is, the reflected light) of the laser beam L is imaged by the camera sensor 2 (step S4).
- the grid pattern in the peripheral area of the target irradiation position and the light spot of the laser beam L may be photographed at one time and stored in one image.
- the grid pattern in the peripheral area of the image is photographed, and then the laser is irradiated (without moving the mirrors 112 and 122), and the light spot appearing on the upper surface of the installation table 4 is photographed twice with a time difference. To obtain two images.
- an error between the XY coordinates where the laser beam L is actually sensed and the target XY coordinates is acquired from the captured one or two images via the beam detection sensor 2 (step S5).
- the grid pattern 41 attached to the upper surface of the installation table 4 is imaged together with a light spot indicating the actual irradiation point of the laser beam L on the upper surface of the installation table 4. . Since the grid pattern 41 is a reference representing the XY coordinates on the upper surface of the installation table 4, the light spot L shown in the image and the grid pattern around the light spot L (or close to the light spot L).
- the position coordinates (x L , y L ) of the light spot L can be calculated by calculating the distance on the image with respect to 41.
- the difference between the calculated coordinates (x L , y L ) of the light spot L and the coordinates (x T , y T ) of the target irradiation position T is the error ( ⁇ x, ⁇ y) to be acquired in step S5. .
- step S6 the correction amount is determined based on the acquired error
- step S7 the set of the determined correction amount and the target XY coordinates is stored.
- the control device 5 repeats the above steps S1 to S7 until the correction amount is determined for all the XY coordinates included in the calibration position data (step S8).
- the workpiece is set on the setting table 4 and the setting table 4 is returned to the origin position by controlling the XY stage.
- a procedure of processing executed by the control device 5 at the time of machining is shown in the flowchart of FIG.
- the control device 5 reads the XY coordinates defined by the stored processing position data (step S9), and calculates the correction amount of the command for the galvano scanners 11 and 12 when the target XY coordinates are irradiated with the laser beam L. Read or acquire by interpolation (step S10).
- a control signal corresponding to a coordinate obtained by adding a correction amount to the target XY coordinate is input to the galvano scanners 11 and 12, and the galvano scanners 11 and 12 are operated (step S11). Then, the laser beam L is irradiated (step S12). The control device 5 repeats the above steps S9 to S12 until laser processing is performed on the necessary XY coordinates defined in the processing position data (step S13).
- a laser processing machine for performing processing by irradiating a workpiece with a laser beam L, the laser beam L oscillated from a laser oscillator being placed on a predetermined surface (installation table) 4 and the optical axis operation mechanism for positioning the optical axis of the laser beam L to a desired target irradiation position on the predetermined plane by changing the direction of the mirrors 112 and 122.
- An error calibration mechanism 5 for detecting an error between the target irradiation position commanded to the optical axis operation mechanisms 111 and 121 and the actual optical axis position of the laser beam L;
- a laser processing machine that can determine a correction amount of a command to be given to the optical axis operation mechanisms 111 and 121 to irradiate the target irradiation position with the laser beam L at the time of processing is configured. .
- a laser processing machine for performing processing by irradiating the workpiece with the laser beam L, the laser beam L oscillated from the laser oscillator being applied to a predetermined surface on which the workpiece is disposed.
- the irradiation position of the beam L and its error can be directly measured by the camera sensor 2, and the irradiation position can be easily calibrated without taking the trouble of observing the pattern formed on the test piece with a microscope. Can be done. Moreover, it is not necessary to prepare a high-precision microscope on site.
- a beam splitter 3 is arranged on the optical path between the laser oscillator and the mirror 122, and the laser beam L oscillated from the laser oscillator is transmitted through the beam splitter 3 and then passed through the mirrors 122 and 112.
- the target sensor is directed toward the predetermined plane, and the target irradiation position on the predetermined plane and its surrounding area are imaged by the camera sensor 2 through the mirror 122 and the beam splitter 3 together with the light spot of the laser beam L irradiated on the predetermined plane. Therefore, the camera sensor 2 is kept stationary regardless of how the target irradiation position of the laser beam L, that is, the angles of the mirrors 112 and 122 are changed. Therefore, calibration can be performed stably over a wide range on a predetermined surface.
- a grid pattern provided on the predetermined plane and indicating a position coordinate of each location on the predetermined plane is imaged by the camera sensor 2, and the error calibration mechanism 5 detects the error on the basis of the grid pattern appearing in the captured image. Therefore, the coordinate detection accuracy of the irradiation position of the actual beam L on the predetermined surface is high, and accurate calibration is possible.
- the error calibration mechanism 5 includes an irradiation position command unit 51 that instructs the optical axis operation mechanisms 111 and 121 to position the optical axis of the laser beam L at a target irradiation position on the predetermined surface, and the camera sensor 2. Based on the error calculated by the error detection unit 54, an error detection unit 54 that calculates an error between the target irradiation position on the predetermined surface and the position of the optical axis of the actual laser beam L with reference to the image captured by And a correction amount storage unit 55 for determining and storing a correction amount of a command to be given to the optical axis operation mechanisms 111 and 121 in order to irradiate the target irradiation position at the time of processing, and automatically performs calibration without human power. Therefore, it can be performed in a short time.
- the present invention is not limited to the embodiment described in detail above.
- the laser beam L is irradiated during calibration, and the light spot and the grid pattern 41 in the peripheral area are photographed by the camera sensor 2.
- the position (pixel coordinates in the image) irradiated with the laser beam L in the captured image is constantly constant. In other words, if the pixel at a specific position in the captured image can always be regarded as the position irradiated with the laser beam L, the grid pattern can be obtained without irradiating the laser beam L.
- the beam splitter 3 and the window 6 are used to image the target irradiation position reflected on the mirror 122 and the surrounding area, but the camera sensor 2 itself is driven without using the beam splitter 3 or the like. It is also possible to move forward and backward through the optical path to interrupt the optical path. In this case, the camera sensor 2 is inserted into the optical path between the laser oscillator and the mirror 122 during calibration, and the camera sensor 2 is retracted from the optical path during laser processing.
- the target irradiation position on the upper surface of the installation table 4 and the surrounding area may be directly imaged without using the mirror 122.
- the present invention can be used as a processing machine that performs processing by irradiating an arbitrary portion of a workpiece with a laser beam.
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Abstract
Description
1…レーザ照射装置
111、121…光軸操作機構
112、122…ミラー
2…カメラセンサ
3…ビームスプリッタ
4…所定面
5…誤差較正機構
L…レーザビーム
Claims (5)
- レーザビームを被加工物に照射して加工を施すためのレーザ加工機であって、
レーザ発振器から発振されるレーザビームを被加工物が配置される所定面に向けて反射させるミラーと、
前記ミラーの方向を変化させることによりレーザビームの光軸を前記所定面における所望の目標照射位置へと位置づける光軸操作機構と、
前記ミラーに映る、前記所定面における目標照射位置及びその周辺の領域を撮像するカメラセンサと、
前記カメラセンサにより撮像した画像を参照し、前記所定面における前記光軸操作機構に指令した目標照射位置と実際のレーザビームの光軸の位置との誤差を検出する誤差較正機構とを具備し、
前記誤差に基づき、加工時にレーザビームをその目標照射位置に照射するために前記光軸操作機構に与えるべき指令の補正量を決定することができるレーザ加工機。 - レーザビームを被加工物に照射して加工を施すためのレーザ加工機であって、
レーザ発振器から発振されるレーザビームを被加工物が配置される所定面に向けて反射させるミラーと、
前記ミラーの方向を変化させることによりレーザビームの光軸を前記所定面における所望の目標照射位置へと位置づける光軸操作機構と、
前記所定面における目標照射位置及びその周辺の領域、並びに当該所定面に照射したレーザビームの光点を撮像するカメラセンサと、
前記カメラセンサにより撮像した画像を参照し、前記所定面における前記光軸操作機構に指令した目標照射位置と実際のレーザビームの光軸の位置との誤差を検出する誤差較正機構とを具備し、
前記誤差に基づき、加工時にレーザビームをその目標照射位置に照射するために前記光軸操作機構に与えるべき指令の補正量を決定することができるレーザ加工機。 - 前記レーザ発振器と前記ミラーとの間の光路上にビームスプリッタを配置し、
前記所定面における目標照射位置及びその周辺の領域を前記ミラー及び前記ビームスプリッタを介して前記カメラセンサで撮像する請求項1または2記載のレーザ加工機。 - 前記所定面に設けられ当該所定面上の各箇所の位置座標を示唆するグリッドパターンを前記カメラセンサで撮像し、
撮像した画像に現れるグリッドパターンを基準として前記誤差較正機構が前記誤差の検出を行う請求項1、2または3記載のレーザ加工機。 - 前記誤差較正機構が、
前記光軸操作機構に対してレーザビームの光軸を前記所定面における目標照射位置に位置づけるための指令を行う照射位置指令部と、
前記カメラセンサで撮像した画像を参照して前記所定面における目標照射位置と実際のレーザビームの光軸の位置との誤差を算出する誤差検出部と、
前記誤差検出部で算出した誤差に基づき、加工時にその目標照射位置に照射するために前記光軸操作機構に与えるべき指令の補正量を決定して記憶する補正量記憶部と
を備えている請求項1、2、3または4記載のレーザ加工機。
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Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014098690A (ja) * | 2012-10-16 | 2014-05-29 | Canon Inc | 校正装置、校正方法及び計測装置 |
EP2833159A1 (de) * | 2013-07-30 | 2015-02-04 | HILTI Aktiengesellschaft | Verfahren zum Kalibrieren eines Messgerätes |
DE102013217126B4 (de) | 2013-08-28 | 2015-09-03 | Trumpf Laser- Und Systemtechnik Gmbh | Verfahren zum Feststellen von Abweichungen einer Ist-Lage eines Laserbearbeitungskopfes von einer Soll-Lage, Laserbearbeitungsmaschine und Computerprogrammprodukt |
GB201317974D0 (en) * | 2013-09-19 | 2013-11-27 | Materialise Nv | System and method for calibrating a laser scanning system |
US10618131B2 (en) * | 2014-06-05 | 2020-04-14 | Nlight, Inc. | Laser patterning skew correction |
US9914985B2 (en) * | 2014-09-09 | 2018-03-13 | G.C. Laser Systems, Inc. | Laser ablation and processing methods and systems |
US11458539B2 (en) | 2014-11-24 | 2022-10-04 | Additive Industries B.V. | Apparatus for producing an object by means of additive manufacturing |
JP6561283B2 (ja) * | 2014-12-22 | 2019-08-21 | 株式会社ワークステーション | レーザー加工機 |
US9837783B2 (en) | 2015-01-26 | 2017-12-05 | Nlight, Inc. | High-power, single-mode fiber sources |
US10050404B2 (en) | 2015-03-26 | 2018-08-14 | Nlight, Inc. | Fiber source with cascaded gain stages and/or multimode delivery fiber with low splice loss |
EP3978184A1 (en) | 2015-11-23 | 2022-04-06 | NLIGHT, Inc. | Method and apparatus for fine-scale temporal control for laser beam material processing |
US11179807B2 (en) | 2015-11-23 | 2021-11-23 | Nlight, Inc. | Fine-scale temporal control for laser material processing |
CN108698164B (zh) * | 2016-01-19 | 2021-01-29 | 恩耐公司 | 处理3d激光扫描仪系统中的校准数据的方法 |
JP6601285B2 (ja) * | 2016-03-15 | 2019-11-06 | オムロン株式会社 | レーザ加工システムおよび加工制御方法 |
US10423015B2 (en) | 2016-09-29 | 2019-09-24 | Nlight, Inc. | Adjustable beam characteristics |
DE102016222186B3 (de) | 2016-11-11 | 2018-04-12 | Trumpf Laser- Und Systemtechnik Gmbh | Verfahren zum Kalibrieren zweier Scannereinrichtungen jeweils zur Positionierung eines Laserstrahls in einem Bearbeitungsfeld und Bearbeitungsmaschine zum Herstellen von dreidimensionalen Bauteilen durch Bestrahlen von Pulverschichten |
US11173548B2 (en) | 2017-04-04 | 2021-11-16 | Nlight, Inc. | Optical fiducial generation for galvanometric scanner calibration |
JP6469167B2 (ja) | 2017-05-16 | 2019-02-13 | ファナック株式会社 | レーザ加工装置 |
CN107248375A (zh) * | 2017-07-20 | 2017-10-13 | 武汉华星光电半导体显示技术有限公司 | 用于刻号机的识别号补值方法及系统 |
DE102017213511A1 (de) | 2017-08-03 | 2019-02-07 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Verfahren zur Lasermaterialbearbeitung und Lasermaschine |
WO2019089323A1 (en) * | 2017-10-30 | 2019-05-09 | Materialise Nv | Calibration of scanning systems |
JP7008942B2 (ja) | 2017-12-21 | 2022-01-25 | 株式会社安川電機 | 較正方法及び較正装置 |
JP6905670B2 (ja) * | 2018-01-26 | 2021-07-21 | トヨタ自動車株式会社 | レーザー溶接方法 |
EP3527319B1 (en) | 2018-02-19 | 2020-07-15 | IAI Industrial systems B.V. | Laser engraver with calibration system |
CN109483047B (zh) * | 2018-11-15 | 2019-12-31 | 中国科学院西安光学精密机械研究所 | 一种激光光束终端指向检测与校正方法及激光加工装置 |
KR20200091994A (ko) | 2019-01-23 | 2020-08-03 | 삼성디스플레이 주식회사 | 레이저 가공 장치 및 레이저 가공 장치의 오차 보정 방법 |
DE102019116214A1 (de) * | 2019-06-14 | 2020-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Referenzierung und Kalibrierung einer Laseranlage |
JP7303053B2 (ja) * | 2019-07-17 | 2023-07-04 | ファナック株式会社 | 調整補助具及びレーザ溶接装置 |
JP7270216B2 (ja) | 2019-08-23 | 2023-05-10 | パナソニックIpマネジメント株式会社 | レーザ加工装置、レーザ加工方法、および補正データ生成方法 |
US11969823B2 (en) * | 2020-04-16 | 2024-04-30 | Panasonic Intellectual Property Management Co., Ltd. | Laser processing apparatus and laser processing method |
CN111872545B (zh) * | 2020-07-22 | 2022-05-06 | 江苏亚威艾欧斯激光科技有限公司 | 一种用于晶片标记的激光设备 |
CN112846485B (zh) * | 2020-12-31 | 2022-11-04 | 武汉华工激光工程有限责任公司 | 激光加工的监测方法、装置及激光加工设备 |
CN113379837B (zh) * | 2021-06-30 | 2024-09-10 | 深圳中科飞测科技股份有限公司 | 检测设备的角度校正方法、设备及计算机可读存储介质 |
KR102676175B1 (ko) * | 2022-10-31 | 2024-06-17 | 한국공학대학교산학협력단 | 갈바노 스캐너를 포함하는 레이저 장치 및 갈바노 스캐너의 제어 명령 결정 방법 |
CN116423084B (zh) * | 2023-06-02 | 2023-09-15 | 武汉船舶职业技术学院 | 无需附加设备的2d振镜自动校正方法及系统 |
KR102661118B1 (ko) | 2023-08-11 | 2024-04-26 | 함정수 | 레이저 가공기 냉각계통 세척방법 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002542042A (ja) * | 1999-04-27 | 2002-12-10 | ジーエスアイ ルモニクス インコーポレイテッド | レーザ校正装置及び方法 |
JP2008068270A (ja) | 2006-09-12 | 2008-03-27 | Disco Abrasive Syst Ltd | レーザー加工装置 |
JP2009006339A (ja) * | 2007-06-27 | 2009-01-15 | Sumitomo Heavy Ind Ltd | レーザ加工装置、及び、レーザ加工方法 |
JP2009516586A (ja) * | 2005-11-22 | 2009-04-23 | コーニング インコーポレイテッド | ハニカム基体用の施栓マスクを製造するための装置、システムおよび方法 |
JP2009297726A (ja) | 2008-06-10 | 2009-12-24 | Kataoka Seisakusho:Kk | レーザ加工機 |
JP2011031248A (ja) * | 2009-07-29 | 2011-02-17 | Sumitomo Heavy Ind Ltd | レーザ加工装置及びレーザ加工方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4769523A (en) * | 1985-03-08 | 1988-09-06 | Nippon Kogaku K.K. | Laser processing apparatus |
US4918284A (en) * | 1988-10-14 | 1990-04-17 | Teradyne Laser Systems, Inc. | Calibrating laser trimming apparatus |
DE10131610C1 (de) * | 2001-06-29 | 2003-02-20 | Siemens Dematic Ag | Verfahren zur Kalibrierung des optischen Systems einer Lasermaschine zur Bearbeitung von elektrischen Schaltungssubstraten |
US6621060B1 (en) * | 2002-03-29 | 2003-09-16 | Photonics Research Ontario | Autofocus feedback positioning system for laser processing |
JP5201311B2 (ja) | 2007-03-28 | 2013-06-05 | 富士電機株式会社 | レーザ加工方法および装置 |
TW201000243A (en) | 2008-04-11 | 2010-01-01 | Applied Materials Inc | Dynamic scribe alignment for laser scribing, welding or any patterning system |
WO2010005394A1 (en) | 2008-07-11 | 2010-01-14 | Aem Singapore Pte Ltd | Laser processing system and method |
KR101026010B1 (ko) * | 2008-08-13 | 2011-03-30 | 삼성전기주식회사 | 레이저 가공장치 및 레이저 가공방법 |
JP5288987B2 (ja) | 2008-10-21 | 2013-09-11 | 三菱電機株式会社 | レーザ加工装置 |
-
2011
- 2011-10-21 JP JP2011232180A patent/JP5385356B2/ja active Active
-
2012
- 2012-07-26 US US13/814,227 patent/US9492889B2/en active Active
- 2012-07-26 WO PCT/JP2012/068979 patent/WO2013057998A1/ja active Application Filing
- 2012-07-26 EP EP12820842.8A patent/EP2769800B1/en active Active
- 2012-07-26 KR KR1020137004678A patent/KR101429866B1/ko active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002542042A (ja) * | 1999-04-27 | 2002-12-10 | ジーエスアイ ルモニクス インコーポレイテッド | レーザ校正装置及び方法 |
JP2009516586A (ja) * | 2005-11-22 | 2009-04-23 | コーニング インコーポレイテッド | ハニカム基体用の施栓マスクを製造するための装置、システムおよび方法 |
JP2008068270A (ja) | 2006-09-12 | 2008-03-27 | Disco Abrasive Syst Ltd | レーザー加工装置 |
JP2009006339A (ja) * | 2007-06-27 | 2009-01-15 | Sumitomo Heavy Ind Ltd | レーザ加工装置、及び、レーザ加工方法 |
JP2009297726A (ja) | 2008-06-10 | 2009-12-24 | Kataoka Seisakusho:Kk | レーザ加工機 |
JP2011031248A (ja) * | 2009-07-29 | 2011-02-17 | Sumitomo Heavy Ind Ltd | レーザ加工装置及びレーザ加工方法 |
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