WO2012035721A1 - Laser processing device and laser processing method - Google Patents

Laser processing device and laser processing method Download PDF

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Publication number
WO2012035721A1
WO2012035721A1 PCT/JP2011/004977 JP2011004977W WO2012035721A1 WO 2012035721 A1 WO2012035721 A1 WO 2012035721A1 JP 2011004977 W JP2011004977 W JP 2011004977W WO 2012035721 A1 WO2012035721 A1 WO 2012035721A1
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Prior art keywords
workpiece
laser processing
processing
laser
movable mounting
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Application number
PCT/JP2011/004977
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French (fr)
Japanese (ja)
Inventor
一知 小寺
杉山 勤
学 西原
義典 佐々木
櫻井 通雄
Original Assignee
パナソニック株式会社
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.)
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Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to JP2012513394A priority Critical patent/JP5691004B2/en
Priority to CN201180004593.3A priority patent/CN102639282B/en
Publication of WO2012035721A1 publication Critical patent/WO2012035721A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/083Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0853Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/082Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head

Definitions

  • the present invention relates to a laser processing apparatus that performs processing by irradiating a workpiece with a laser, and more particularly to a laser processing apparatus that performs through-hole processing (through-hole processing).
  • FIG. 10 is a side view showing the configuration of a workpiece placement portion of a first example of a laser processing apparatus according to the prior art.
  • a workpiece 811 is placed on the top of the divided mounting portion 821.
  • the divided mounting portions 821 have a structure that can be individually moved in the vertical direction, and are moved up and down by an elevation driving unit (not shown) such as an air cylinder.
  • the placement unit 821 At the time of blind hole processing, in the placement unit 821, all the suction units are in a raised state. Then, the work 811 is fixed by suction and processed using the entire surface of the mounting portion 821. At the time of through-hole processing, as shown in FIG. 10, laser processing is performed in a state where only the divided mounting portion 821 corresponding to the lower part of the portion 812 to be processed of the workpiece 811 is lowered. .
  • FIG. 11 is a perspective view showing the configuration of a second example of the laser processing apparatus according to the prior art.
  • the chuck 902 holds a thin plate-shaped workpiece 901 formed of a soft member at two opposing sides.
  • a tensile device 903 applies a tensile force to the workpiece 901 held by the chuck 902.
  • the workpiece 901 is held by the chuck 902 and the tension device 903.
  • the moving device 904 moves the workpiece 901.
  • the dust collector 905 is provided on the back side of the surface irradiated with the laser light so as to cover the entire processing area, and has a stop device 906 for stopping the gas flow inside the dust collector 905.
  • the two holding devices 907 respectively hold the side of the workpiece 901 in the direction perpendicular to the side on which the tensile force by the pulling device 903 acts.
  • the adjusting device 908 moves one of the holding devices 907 in a direction perpendicular to the tensile force.
  • the workpiece 901 is pulled by the holding device 903 and the holding device 907 to hold the flat surface while applying a tensile force to the workpiece 901. Then, the workpiece 901 is moved to the processing area while being held by the pulling device 903 and the holding device 907. Thereby, it is possible to perform the laser processing while maintaining a flat surface without contacting the back surface of the through hole processing portion of the workpiece 901 with the mounting portion (see, for example, Patent Document 2).
  • a resin film having a thickness of about 100 ⁇ m and a metal foil having a thickness of several tens of ⁇ m are to be processed.
  • the mounting portion is not damaged by the laser, in the case of a thin sheet-like or foil-like workpiece as described above, a depression is generated so that the corresponding portion may sag by its own weight.
  • the flatness of the processed portion is deteriorated. Deterioration of the flatness causes deviation of the focus of the laser and deviation of the processing position, which hinders precise processing. That is, desired precision processing can not be performed.
  • a flat surface is to be held by pulling two opposing sides of the workpiece.
  • stretching of the material occurs by pulling.
  • the processing position of the workpiece shifts or wrinkles occur, and precise processing is difficult as in the first example.
  • the present invention provides a laser processing apparatus and a laser processing method capable of performing high-precision laser processing even with a sheet-like workpiece having a very thin thickness.
  • a laser processing apparatus includes a processing head unit for laser processing a workpiece, and a mounting unit having a plurality of divided movable mounting units that vertically move up and down to hold the workpiece.
  • the laser processing method of the present invention is a laser processing method for processing a workpiece using the above-described laser processing apparatus, and when moving a processing area of the workpiece with a processing table, the upper surface suction device Method of raising and lowering the laser processing apparatus.
  • the laser processing method of the present invention is a laser processing method for processing a workpiece using the above-described laser processing apparatus, and when moving the processing area of the workpiece with a processing table, a plurality of movable
  • the laser processing method is to perform laser processing in a state in which the upper surface suction device disposed at least in the advancing direction of the processing area is lowered until all the processing area in which one of the mounting parts is lowered is completely laser processed. .
  • the laser processing method of the present invention is a laser processing method for processing a workpiece using the above-described laser processing apparatus, and when moving the processing area of the workpiece with a processing table, a plurality of movable The laser is performed with the upper surface suction device arranged at least in the advancing direction of the processing area being lowered until the laser processing is all done up to the processing area one before the processing area where one of the mounting parts is descending
  • the processing area which performs processing and finally performs laser processing is a laser processing method which performs laser processing in the state which raised the upper surface adsorption
  • the vicinity of the processing area of the workpiece is held above the top surface suction device.
  • FIG. 1 is a perspective view showing a schematic configuration of a laser processing apparatus according to an example of the first embodiment of the present invention.
  • FIG. 2 is a side view of the laser processing apparatus according to an example of the first embodiment of the present invention as viewed from the Y direction.
  • FIG. 3 is a side view of the laser processing apparatus according to an example of the first embodiment of the present invention as viewed from the X direction.
  • FIG. 4A is a side view showing an elevation state of the top adsorption device according to an example of Embodiment 1 of the present invention.
  • FIG. 4: B is a side view which shows the raising / lowering state of the upper surface adsorption
  • FIG. 1 is a perspective view showing a schematic configuration of a laser processing apparatus according to an example of the first embodiment of the present invention.
  • FIG. 2 is a side view of the laser processing apparatus according to an example of the first embodiment of the present invention as viewed
  • FIG. 5A is a side view showing a detailed configuration of the top adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 5B is a side view showing the detailed configuration of the top adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 6A is a side view showing the details of the different configuration of the top adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 6B is a side view showing the details of the different configuration of the top adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 7A is a view showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 7A is a view showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 7B is a diagram showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention.
  • FIG. 8A is a layout diagram showing an example of setting of a processing area of a workpiece according to Embodiment 2 of the present invention.
  • FIG. 8B is a layout view showing an example of setting of a processing area of a workpiece according to Embodiment 2 of the present invention.
  • FIG. 9A is a side view showing the upper and lower surface adsorption devices according to an example of Embodiment 2 of the present invention in different elevation states.
  • FIG. 9B is a side view showing the upper and lower surface adsorption devices according to an example of the second embodiment of the present invention in different elevation states.
  • FIG. 9C is a side view showing different lifting and lowering states of the top adsorption device according to an example of Embodiment 2 of the present invention.
  • FIG. 10 is a side view showing the configuration of the mounting unit of the laser processing apparatus according to the prior art.
  • FIG. 11 is a perspective view showing the holding state of the workpiece of the laser processing apparatus according to the prior art.
  • FIG. 1 is a perspective view showing a schematic configuration of a laser processing apparatus 100 according to an example of the first embodiment of the present invention.
  • 2 is a side view of the laser processing apparatus 100 as viewed in the Y direction
  • FIG. 3 is a side view of the laser processing apparatus 100 as viewed in the X direction.
  • a laser is oscillated inside and a laser 102 is emitted.
  • the emitted laser 102 can change its traveling direction by the mirror 103.
  • a collimator lens 104 for adjusting the beam diameter of the laser 102 is disposed.
  • a mask 105 for shaping the beam shape of the laser 102 that has passed through the collimator lens 104 and an iris 106 for suppressing miscellaneous light of the laser 102 that has passed through the mask 105 are disposed.
  • the laser 102 which has passed through the iris 106 is processed by the galvano X mirror 109 for swinging in the X-axis direction and the galvano Y mirror 110 for swinging the laser 102 reflected by the galvano X mirror 109 in the Y-axis direction. It is positioned at a desired position on the surface 111. Furthermore, the laser processing apparatus 100 is configured such that the laser 102 reflected by the galvano Y mirror 110 is condensed by the f ⁇ lens 107 and irradiated to the processing point of the workpiece 111.
  • a controller 108 is provided to control the galvano X mirror 109, the galvano Y mirror 110, and the laser oscillator 101.
  • a plurality of workpieces 111 are placed on a plurality of movable mounting portions 121 and an outer peripheral mounting portion 123.
  • the mounting portion 120 is configured of the movable mounting portion 121 and the outer peripheral mounting portion 123.
  • the movable placement portion 121 is provided with a plurality of placement portion suction holes 122, and the outer circumference placement portion 123 is also provided with an outer circumference suction hole 124.
  • the workpiece 111 is suctioned and held by vacuum suction from the lower part of the mounting unit 120 by the mounting unit suction holes 122 and the outer circumference suction holes 124.
  • the movable mounting portions 121 are supported by a pair of movable mounting portion elevating cylinders 125, respectively.
  • the movable mounting unit elevating cylinder 125 uses an air cylinder controlled by air pressure, and can individually move the movable mounting units 121 of the plurality of movable mounting units 121 independently. it can.
  • a space between the movable mounting portion 121 for holding the workpiece 111 and the processing table 115 is a lower dust collecting device 112 as shown in FIG. It has the function of collecting dust generated in the lower part.
  • an upper dust collecting apparatus 130 is installed on the laser irradiation surface side above the workpiece 111.
  • the upper dust collecting apparatus 130 is provided so as to surround the irradiation range of the laser 102 controlled by the galvano X mirror 109 and the galvano Y mirror 110.
  • the upper dust collecting apparatus 130 sucks the internal air from the holes provided in a part of the upper dust collecting apparatus 130 to collect and discharge the machining waste generated on the upper part of the workpiece 111 at the time of the laser processing.
  • the upper dust collecting device 130 is provided with a pair of upper surface suction devices 131 and 132 and a top suction device elevating cylinder 133 for moving the upper surface suction devices 131 and 132 up and down.
  • the upper surface suction device lifting and lowering cylinder 133 is configured to be able to vertically move the respective upper surface suction devices 131 and 132 independently using an air cylinder.
  • the configuration of the laser processing apparatus 100 according to the present embodiment will be described in more detail with reference to FIGS. 2 and 3.
  • the processing table 115 is composed of two large blocks of a Y table 116 and an X table 118.
  • the Y table 116 is configured to place the movable mounting portion 121, the outer peripheral mounting portion 123, the lower dust collecting device 112, and a set of components attached thereto, and to move in the Y direction.
  • the movement in the Y direction is performed by rotating the ball screw by driving the Y-axis moving motor 117 and sliding the Y table 116 for every set placed thereon.
  • the X-table 118 further mounts the Y-table 116 and the configuration set placed thereon, and is configured to move in the X direction.
  • the movement in the X direction is performed by rotating the ball screw by driving the X-axis moving motor 119 and sliding the X-table 118 together with the set placed thereon.
  • the directions of the galvano X mirror 109, the galvano Y mirror 110, and the laser 102 that reflect the laser 102 and control the irradiation position are made perpendicular to the surface of the workpiece 111 and collected.
  • the f ⁇ lens 107 that emits light is installed in the processing head unit 135.
  • the processing head portion 135 is attached to the Z-slider 136, and the Z-slider 136 is movable in the Z direction, that is, in the vertical direction by driving the Z-axis moving motor 137.
  • the Z-slider 136 and the Z-axis movement motor 137 are installed on the main body frame 140.
  • the upper dust collecting device 130 is also fixed to the main body frame 140. Therefore, the positional relationship between the upper dust collecting apparatus 130 and the apparatus main body is fixed.
  • the upper surface adsorption device lifting and lowering cylinder 133 is fixed to the upper surface dust collecting device 130, and can control the air pressure to move the upper surface adsorption devices 131 and 132 up and down.
  • the upper surface adsorption devices 131 and 132 are configured to be able to adsorb the workpiece 111 from the laser irradiation surface side of the workpiece 111, that is, the upper surface.
  • suction holes are provided on the surface in contact with the workpiece 111, and the workpiece 111 is configured to be able to be sucked from the top by performing vacuum suction.
  • the driving unit 150 for vertically moving the upper surface suction devices 131 and 132 up and down includes the upper surface suction device elevating cylinder, the Z slider 136 and the Z axis moving motor 137.
  • the evacuation of the mounting portion adsorption holes 122 and the outer periphery adsorption holes 124 is stopped to prevent the adsorption, and the movable mounting portion 121 and the upper surface adsorption device 131 , Raise all 132.
  • the mounting unit 120 is moved to the mounting position of the workpiece.
  • the mounting portion suction holes 122 and the outer peripheral suction holes 124 are evacuated to hold the lower surface of the workpiece 111 by suction.
  • the movement of the processing table is started in order to move the mounting unit 120 holding the workpiece 111 to the first processing area.
  • the movement of the processing head 135 at the origin position to the focal position is started.
  • the processing head unit 135 moves only along the Z-axis direction. Only for the movable mounting portion 121 on the lower surface of the first processing area, the vacuuming of the mounting portion suction holes 122 provided on the movable mounting portion 121 is switched to blow, and The suction holding is stopped and the movable mounting portion 121 is lowered. Perform these operations in parallel.
  • Each processing area is set within the scan range of the galvano mirror (galvano X mirror 109 and galvano Y mirror 110), and the positioning of the laser processing in the area is performed by controlling the galvano mirror.
  • the upper surface suction devices 131 and 132 are lowered to move the workpiece 111 Adhere to the surface.
  • FIG. 4A and FIG. 4B are side views showing the elevation state of the upper surface adsorption device according to an example of Embodiment 1 of the present invention.
  • FIG. 5A and FIG. 5B are side views showing the detailed configuration of the upper surface adsorption device according to an example of the first embodiment of the present invention.
  • 6A and 6B are side views showing the details of different configurations of the upper surface adsorption device according to an example of the first embodiment of the present invention.
  • the state shown in FIG. 4A is the state in which the upper surface suction devices 131 and 132 are raised
  • the state shown in FIG. 4B is the state in which the upper surface suction devices 131 and 132 are lowered and in close contact with the surface of the workpiece 111.
  • FIG. 5A is a side view of a state in which the top adsorption devices 131 and 132 are lowered as viewed in the Y direction
  • FIG. 5B is a side view of the state in which the top adsorption devices 131 and 132 are lowered in the X direction.
  • a pair of upper surface adsorption device lifting and lowering cylinders 133 are fixed to the upper dust collecting device 130.
  • the upper surface adsorption device lifting and lowering cylinder 133 is constituted by an air cylinder, and by controlling the air pressure via the air tube 141, the upper surface adsorption devices 131 and 132 can be moved up and down.
  • the upper surface suction devices 131 and 132 are both lowered.
  • the upper surface adsorption devices 131 and 132 are provided with upper surface adsorption holes 142 so that the workpiece 111 can be adsorbed from the surface on the laser irradiation side of the workpiece 111, that is, the upper surface. After the upper surface adsorption devices 131 and 132 are lowered, the workpiece 111 is adsorbed from the upper surface by performing vacuum suction via the air tube 143.
  • suction apparatus 131,132 is provided in the perpendicular
  • the longitudinal direction of the upper surface suction devices 131 and 132 is the X axis direction
  • the longitudinal direction of the movable mounting portion 121 is the Y axis direction.
  • the size in the longitudinal direction of the upper surface suction devices 131 and 132 may be set to be slightly smaller than the width of one movable mounting portion 121. In this way, when the upper surface suction devices 131 and 132 are lowered, the workpiece 111 is not sandwiched between the movable mounting portion 121 and the upper surface suction devices 131 and 132 and deformed or damaged. The surface accuracy around the upper surface suction devices 131 and 132 on the upper surface of the workpiece 111 can be secured.
  • setting slightly small may be set in a range where the workpiece 111 is not damaged due to the driving accuracy of the laser processing apparatus 100 and the thickness and the variation of the workpiece 111.
  • the width of the movable mounting portion 121 is set to 50 mm
  • a range of 47 mm to 49 mm, in particular 48 mm may be set as a reference dimension.
  • suction apparatus 131,132 can also be set larger than the width
  • FIG. In this case, although it is necessary to raise the upper surface adsorption devices 131 and 132 every time the workpiece 111 moves, the upper surface adsorption devices 131 and 132 may be brought into contact with the workpiece 111 without precisely controlling the amount of descent. Lower it to start adsorption. Only in this way, it is possible to secure the surface accuracy around the upper surface suction devices 131 and 132 of the workpiece 111.
  • FIG. 7A and 7B are diagrams showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention.
  • the operation of the top adsorbers 131, 132 configured as in FIG. 5A, 5B or 6A, 6B is shown in FIG. 7A.
  • FIG. 7A shows the state of the workpiece 111 when the top adsorption devices 131 and 132 are not present.
  • the workpiece 111 is a sheet-like substrate having a thickness of 100 ⁇ m or less, in which a glass epoxy is sandwiched by a PET (polyethylene terephthalate) film.
  • the width of the movable mounting portion 121 is 50 mm
  • the amount of deformation is on the order of several tens of ⁇ m
  • the focal point shift in the Z-axis direction and the positions in the X-axis and Y-axis directions corresponding to this amount of deformation Deviation has a great effect on precise processing. That is, these focus shifts or misalignments hinder precise processing, resulting in processing defects.
  • the upper surface adsorption devices 131 and 132 adsorb the upper surface of the workpiece 111 in the vicinity of the processing area. Therefore, even if the movable mounting part 121 is absent in the said process area, a deformation
  • the galvano X mirror 109 and the galvano Y mirror 110 are controlled to start irradiation of the laser 102 at the hole processing position.
  • the evacuation of the upper surface adsorption holes 142 is stopped to stop the adsorption and holding of the workpiece 111.
  • the upper surface suction devices 131 and 132 are raised to return to the state shown in FIG. 4A.
  • the processing table 115 is moved in the Y direction in the present embodiment.
  • the procedure of a series of operations leading to the downward movement of the upper surface adsorption devices 131 and 132, adsorption, laser drilling, pause of adsorption, and the elevation of the upper surface adsorption devices 131 and 132 in the second processing area is as described above.
  • the process is repeated until all the processing area in which one movable mounting portion 121 is lowered has been subjected to the laser processing.
  • the vacuum suction of the upper surface suction holes 142 is stopped to hold the workpiece 111 by suction. Stop. Thereafter, the top adsorption devices 131 and 132 are raised to return to the state shown in FIG. 4A.
  • the following operation is started. First, movement of the processing table 115 in the X direction is started to move the mounting unit 120 to the next processing area.
  • the movable mounting portion 121 is raised while stopping the blow of the movable mounting portion 121 that has already been lowered.
  • the mounting portion suction holes 122 provided in the movable mounting portion 121 are evacuated to hold the workpiece 111 again by suction.
  • the evacuation of the mounting portion suction hole 122 provided in the movable mounting portion 121 at the position corresponding to the next processing area is switched to blow.
  • the movable mounting portion 121 at the relevant position is lowered. Perform these operations in parallel.
  • the upper surface suction devices 131 and 132 are lowered to be in close contact with the surface of the workpiece 111 and adsorption of the top surface of the workpiece 111 is started.
  • the galvano X mirror 109 and the galvano Y mirror 110 are controlled, and the irradiation of the laser 102 to the drilling position is started.
  • the above-described operation is repeated to process all of the predetermined processing area of the workpiece 111.
  • the evacuation of the upper surface adsorption holes 142 is stopped to stop the adsorption and holding of the workpiece 111.
  • the top adsorption devices 131 and 132 are raised to return to the state shown in FIG. 4A.
  • the following operation is started.
  • movement of the processing table 115 is started in order to start moving the workpiece 111 to the removal position.
  • the movement of the processing head unit 135 to the origin is started.
  • the movable mounting portion 121 is raised while stopping the blow of the movable mounting portion 121 that has already been lowered.
  • the mounting portion suction holes 122 provided in the movable mounting portion 121 are evacuated to hold the workpiece 111 again by suction. Perform these operations in parallel.
  • the laser processing apparatus 100 of the present invention includes the processing head unit 135, the placement unit 120, the processing table 115, the upper surface suction devices 131 and 132, and the drive unit 150.
  • the processing head unit 135 performs laser processing on the workpiece 111.
  • the placement unit 120 has a plurality of divided movable placement units 121 that move up and down and holds the workpiece 111.
  • the processing table 115 drives the placement unit 120 in the X direction and the Y direction.
  • the upper surface adsorption devices 131 and 132 are located above the workpiece 111 and adsorb the upper surface of the workpiece 111.
  • the drive unit 150 raises and lowers the upper surface suction devices 131 and 132 up and down.
  • a pair of upper surface suction devices 131 and 132 are provided, and are configured to be vertically driven to move up and down independently.
  • the longitudinal direction of the upper surface suction devices 131 and 132 is set to be perpendicular to the longitudinal direction of the movable mounting portion 121, and the size in the longitudinal direction of the upper surface suction devices 131 and 132 is the width of the movable mounting portion 121.
  • the configuration is set largely for
  • the upper surface suction devices 131 and 132 may be formed of an electrostatic chuck that sucks the workpiece 111 by applying a voltage.
  • suction holes are provided on the surfaces of the upper surface suction devices 131 and 132 in contact with the surface of the workpiece 111, and the workpiece 111 is adsorbed by the suctioned air pressure.
  • the movable mounting portion 121 at a position where the penetrated laser 102 can reach is positioned below the other mounting portions and removed from the focusing range of the laser 102.
  • the laser 102 is prevented from being damaged, and the other processing areas are held by suction.
  • the upper surface suction devices 131 and 132 are held upward in the vicinity of the processing area in which the movable mounting portion 121 is lowered. As a result, even with a very thin sheet-like workpiece 111 having a very small thickness, highly accurate laser processing with very low deflection can be performed.
  • the adsorption of the work piece 111 of the upper surface adsorption devices 131 and 132 is realized by evacuating, but can be realized by using different adsorption means.
  • an electrostatic chuck may be used.
  • the upper surface adsorption devices 131 and 132 are formed of a dielectric in which electrodes are embedded, and a voltage is applied to the electrodes, whereby a sheet as a workpiece can be adsorbed through the dielectric.
  • the dielectric any material having high withstand voltage and dielectric constant may be used.
  • ceramic materials such as silicon carbide, alumina, and aluminum nitride are excellent.
  • the electrostatic chuck has a response speed for adsorption / desorption that is significantly faster than adsorption by vacuum suction, and the overall processing time can be shortened by using the electrostatic chuck for the top surface adsorption devices 131 and 132.
  • the upper surface suction devices 131 and 132 are formed of an electrostatic chuck that sucks the workpiece 111 by applying a voltage.
  • the upper surface adsorption devices 131 and 132 may be formed of nitride film-treated stainless steel, and at least the surface in contact with the surface of the workpiece 111 may be polished.
  • the present embodiment is described using a diagram in which six movable mounting portions 121 are installed, the number of movable mounting portions 121 may be determined by design requirements such as the size of the laser processing apparatus 100. However, the present invention is not limited to this example.
  • the upper dust collecting device 130 is provided with a pair of upper surface suction devices 131 and 132 and a top suction device elevating cylinder 133 for moving the upper surface suction devices 131 and 132 up and down.
  • the upper surface suction device lifting cylinder 133 is configured to be able to move the upper surface suction devices 131 and 132 independently up and down by using an air cylinder.
  • FIG. 8A, 8B and 9A to 9C are layout diagrams showing an example of setting of a processing area of the workpiece 111 according to the second embodiment of the present invention.
  • FIG. 9A, FIG. 9B, and FIG. 9C are side views showing different lifting and lowering states of the top adsorption device according to one example of the second embodiment of the present invention.
  • FIGS. 8A and 8B show an example of allocation of the processing area of the workpiece 111, in which the numbers 1, 2,..., 48 are assigned in the order of processing. Although allocated in six rows in the Y direction, this corresponds to the number of divisions of the movable mounting portion 121.
  • the number of processing areas in the six rows and 48 is set for the convenience of description in the second embodiment, and is not limited to this number in actual processing.
  • the workpiece 111 is mounted on the apparatus, and the workpiece 111 is adsorbed and held, and the processing table 115 is moved. Only for the movable mounting portion 121 on the lower surface of the first processing area, the vacuum suction of the mounting portion suction hole 122 provided on the movable mounting portion 121 is switched to blow, and the suction of the lower surface of the workpiece 111 at the corresponding portion The operation of stopping the holding and lowering the movable mounting portion 121 is the same as that of the first embodiment described above.
  • FIG. 9A shows a state in which only the upper surface suction device 132 is in close contact with the surface of the workpiece 111. This corresponds to bringing only the upper surface suction device 132 on the side of the processing travel direction 144 into close contact with the workpiece 111.
  • the suction may be performed by vacuum suction via an air tube as in the first embodiment, or may be held by electrostatic force using an electrostatic chuck.
  • the upper surface adsorption device 132 adsorbs the upper surface of the workpiece 111 in the vicinity of the processing area, thereby preventing deformation of the workpiece 111 even in the absence of the movable mounting portion 121 in the processing area. can do.
  • the hole processing of the first processing area is the same as that of the first embodiment.
  • a different point is that even if all holes in the first processing area are completed, the adsorption holding of the workpiece 111 by the upper surface adsorption device 132 is not stopped and the upper surface adsorption device 132 is kept lowered. It is in.
  • the processing table 115 is moved in the Y direction in the present embodiment.
  • laser drilling is performed.
  • the upper surface suction device 132 is moved to the third processing area while being lowered. As described above, the process is repeated until all the area in which one movable mounting portion 121 is lowered is subjected to the laser processing.
  • the eighth processing area corresponds.
  • the following operation is started. First, movement of the processing table 115 in the X direction is started to move the mounting unit 120 to the next processing area. While stopping the blowout of the movable mounting portion 121 which has already been lowered, the movable mounting portion 121 is lifted, and when the lifting is completed, the mounting portion suction hole 122 provided in the movable mounting portion 121 is evacuated. , Adsorb and hold the workpiece 111 again. The evacuation of the mounting portion suction hole 122 provided in the movable mounting portion 121 at the position corresponding to the next processing area is switched to blow. When holding of the lower surface of the workpiece 111 at the portion is not performed, the movable mounting portion 121 at the portion is lowered. Perform these operations in parallel.
  • the same operation as in the first processing area is performed.
  • the above operation is repeated to process the entire predetermined processing area of the workpiece 111.
  • the adsorption holding of the workpiece 111 by the upper surface suction devices 131 and 132 is stopped. After that, both the top adsorption devices 131 and 132 are returned to the raised state.
  • the laser processing method of the present invention is a laser processing method for processing the workpiece 111 using the above-described laser processing apparatus 100, and the processing area of the workpiece 111 is moved by the processing table 115. And raising and lowering the upper surface adsorption devices 131 and 132.
  • the laser processing method of the present invention is a laser processing method for processing the workpiece 111 using the above-described laser processing apparatus 100, and the case where the processing area of the workpiece 111 is moved by the processing table 115 Think.
  • the upper surface suction devices 131 and 132 disposed at least in the advancing direction 144 of the processing area are lowered until all the processing area in which one of the plurality of movable mounting portions 121 is lowered has been laser processed. It is a laser processing method of performing laser processing in a fixed state.
  • the laser processing method of the present invention is a laser processing method for processing the workpiece 111 using the above-described laser processing apparatus 100, and considers a case where the processing area of the workpiece 111 is moved by the processing table .
  • the laser processing is performed in a state where the suction devices 131 and 132 are lowered.
  • the processing area which performs a laser processing at last is a laser processing method which performs a laser processing in the state which raised the upper surface adsorption
  • the upper surface suction is performed in the vicinity of the processing area where the movable mounting portion 121 is lowered while preventing damage by the penetrating laser 102. Either one of the devices 131 or 132 is held upwards. As a result, even with a sheet-like workpiece 111 having a very small thickness, high-precision processing with very low deflection can be performed.
  • one of the upper surface suction devices 131 and 132 is lowered to move the processing table 115 by moving the processing table 115 while holding the workpiece 111, thereby moving the processing area.
  • the upper surface suction devices 131 and 132 to be lowered are the top surface suction devices 131 and 132 in the traveling direction 144 of the processing area. Therefore, even if the upper surface suction devices 131 and 132 rub the surface of the workpiece 111, they do not damage the surface of the workpiece 111 because they are still unprocessed processing areas.
  • FIG. 1 As one example, stainless steel is used as a base material, and after reducing the surface roughness by buffing, a nitride film treatment is performed. Furthermore, the surface in contact with the surface of the workpiece 111 is buffed to mirror finish. By doing so, the surface rubbing the surface of the workpiece 111 can be made hard and slippery and not cause wear.
  • the example is repeated until all the processing areas in which one movable mounting portion 121 is lowered are completely laser-processed while the upper surface suction devices 131 and 132 on the side of the advancing direction 144 are lowered. .
  • the adsorption holding of the workpiece 111 of the descending upper surface suction devices 131 and 132 is stopped. Thereafter, the workpiece 111 is held between the upper surface adsorbing devices 131 and 132 and the outer peripheral placement portion 123 by raising the lowered upper surface adsorbing devices 131 and 132 and moving to the next processing area. Can be prevented from being deformed or scratched.
  • the outer circumferential placement portion 123 holds the workpiece 111, surface accuracy can be ensured even if the upper surface suction devices 131 and 132 are raised.
  • the laser processing method described in the first embodiment and the laser processing method described in the second embodiment may be selected may be changed depending on the material and thickness of the workpiece.
  • the two upper surface suction devices 131 and 132 can be independently controlled to move up and down, it is possible to select a laser processing method.
  • the processing order of the processing area may be changed to always lower the upper surface suction device in the traveling direction.
  • the laser processing apparatus can realize high processing accuracy by maintaining the flatness of the workpiece while preventing damage to the placement portion in hole processing by laser, and performs laser processing to perform through-hole processing It is useful in an apparatus etc.
  • Reference Signs List 100 laser processing apparatus 101 laser oscillator 102 laser 103 mirror 104 collimator lens 105 mask 106 iris 107 f ⁇ lens 108 controller 109 galvano X mirror 110 galvano Y mirror 111 workpiece 112 lower dust collector 113 air flow 115 processing table 116 Y table 117 Y-axis movement motor 118 X table 119 X-axis movement motor 120 placement unit 121 movable placement unit 122 placement unit suction hole 123 outer circumference placement unit 124 outer circumference adsorption hole 125 movable placement unit elevating cylinder 130 upper dust collecting device 131, 132 Top surface suction device 133 Top surface suction device elevating cylinder 135 Processing head part 136 Z slider 137 Z axis movement motor 140 Body frame 141 Air tube 14 Top suction hole 143 air tube 144 traveling direction 150 driver

Abstract

This laser processing device (100) is provided with: a processing head section (135) which laser processes an item which is being processed; a mount section (120) which has a plurality of separated moveable mount sections (121) which rise and fall in the vertical direction, and which holds the item being processed; a processing table (115) which drives the mount section in the X and Y directions; an upper surface adhesion device (130) which is arranged above the item being processed and which adheres to the upper surface of the item being processed; and a drive unit (150) which drives the upper surface adhesion device so as to rise and fall in the vertical direction.

Description

レーザ加工装置およびレーザ加工方法Laser processing apparatus and laser processing method
 本発明は、レーザを被加工物に照射して加工を行うレーザ加工装置に関し、特にスルーホール加工(貫通穴加工)を行うレーザ加工装置に関する。 The present invention relates to a laser processing apparatus that performs processing by irradiating a workpiece with a laser, and more particularly to a laser processing apparatus that performs through-hole processing (through-hole processing).
 近年、部品の小型化、高集積化、複合モジュール化に伴い、それらの元となる基材の穴あけ加工もますます小径化し、従来の加工方法では、この小径化に対応することが困難になってきた。それらを解決し小径化に対応するために、レーザを用いた穴あけ加工が増えてきている。このレーザによる被加工物への穴あけ加工では、大きく分類して、被加工物に貫通穴を空けるスルーホール加工と、被加工物に非貫通穴を空けるブラインドホール加工の2種類がある。 In recent years, with the miniaturization of parts, high integration, and complex modularization, the diameter of the base material which is the origin of these parts is also increasingly reduced in diameter, and it becomes difficult to cope with the reduction in diameter by the conventional processing method. It has In order to solve them and to cope with the reduction in diameter, drilling using a laser is increasing. In this case, there are two types of drilling processing into a workpiece by laser, through hole processing in which a through hole is made in a workpiece and blind hole processing in which a non-through hole is made in a workpiece.
 図10は、従来技術に係るレーザ加工装置の第1例の被加工物載置部の構成を示す側面図である。 FIG. 10 is a side view showing the configuration of a workpiece placement portion of a first example of a laser processing apparatus according to the prior art.
 図10に示すように、被加工物811が、分割された載置部821の上部に載せられている。分割された載置部821は、個別に上下方向に動作可能な構造を持ち、エアシリンダ等の昇降駆動部(図示せず)により上下動作する。 As shown in FIG. 10, a workpiece 811 is placed on the top of the divided mounting portion 821. The divided mounting portions 821 have a structure that can be individually moved in the vertical direction, and are moved up and down by an elevation driving unit (not shown) such as an air cylinder.
 ブラインドホール加工時は、載置部821は、全ての吸着部が上昇した状態となる。そして、載置部821全面を使用して被加工物811を吸着固定し加工を行う。スルーホール加工時は、図10に示すように、被加工物811の加工の対象となっている部分812の下部に相当する分割された載置部821のみ下降させた状態でレーザ加工が行われる。 At the time of blind hole processing, in the placement unit 821, all the suction units are in a raised state. Then, the work 811 is fixed by suction and processed using the entire surface of the mounting portion 821. At the time of through-hole processing, as shown in FIG. 10, laser processing is performed in a state where only the divided mounting portion 821 corresponding to the lower part of the portion 812 to be processed of the workpiece 811 is lowered. .
 以上のように構成することで、被加工物811の平面度を維持しながら、スルーホール加工時のレーザによる載置部821の損傷を防止している(例えば、特許文献1を参照)。 By configuring as described above, damage to the mounting portion 821 by the laser at the time of through-hole processing is prevented while maintaining the flatness of the workpiece 811 (see, for example, Patent Document 1).
 図11は、従来技術に係るレーザ加工装置の第2例の構成を示す斜視図である。 FIG. 11 is a perspective view showing the configuration of a second example of the laser processing apparatus according to the prior art.
 図11に示すように、チャック902は軟質部材で形成された薄板形状の被加工物901を対抗する2辺で挟み持つ。引張装置903がチャック902によって挟持された被加工物901に引張力を与える。これらのチャック902と引張装置903で被加工物901を保持する。移動装置904は被加工物901を移動させる。集塵装置905は、レーザ光が照射される面の裏面側に複数の加工領域の全域にわたる大きさで設けられ、集塵装置905の内部にはガス流れを停止させる停止装置906を有する。2つの保持装置907は、引張装置903による引張力が働く辺と直角方向の被加工物901の辺をそれぞれ保持する。調整装置908は、保持装置907の一方を引張力と直角になる方向に移動させる。 As shown in FIG. 11, the chuck 902 holds a thin plate-shaped workpiece 901 formed of a soft member at two opposing sides. A tensile device 903 applies a tensile force to the workpiece 901 held by the chuck 902. The workpiece 901 is held by the chuck 902 and the tension device 903. The moving device 904 moves the workpiece 901. The dust collector 905 is provided on the back side of the surface irradiated with the laser light so as to cover the entire processing area, and has a stop device 906 for stopping the gas flow inside the dust collector 905. The two holding devices 907 respectively hold the side of the workpiece 901 in the direction perpendicular to the side on which the tensile force by the pulling device 903 acts. The adjusting device 908 moves one of the holding devices 907 in a direction perpendicular to the tensile force.
 以上のように構成することで、被加工物901に引張力を与えつつ、保持する引張装置903と保持装置907により被加工物901が引っ張られて平面を維持する。そして、被加工物901は、引張装置903と保持装置907に保持された状態で加工領域に移動される。これにより、被加工物901のスルーホール加工部位の裏面は載置部と触れることなく、平面を維持しつつレーザ加工を行なうことができる(例えば、特許文献2を参照)。 With the above-described configuration, the workpiece 901 is pulled by the holding device 903 and the holding device 907 to hold the flat surface while applying a tensile force to the workpiece 901. Then, the workpiece 901 is moved to the processing area while being held by the pulling device 903 and the holding device 907. Thereby, it is possible to perform the laser processing while maintaining a flat surface without contacting the back surface of the through hole processing portion of the workpiece 901 with the mounting portion (see, for example, Patent Document 2).
 近年、より精密な加工とさらなる高集積化のため、板状の被加工物の厚さもより薄く、加工が施される穴の径も小さくなってきた。例えば、100μm程度の厚さの樹脂フィルムや数十μmの厚さの金属箔が、その加工対象となっている。 In recent years, the thickness of plate-like workpieces has become thinner and the diameter of holes to be processed has also become smaller due to more precise processing and higher integration. For example, a resin film having a thickness of about 100 μm and a metal foil having a thickness of several tens of μm are to be processed.
 上述の第1例目の従来技術に係るレーザ加工装置の構成では、スルーホール加工時は、被加工物の加工の下部に相当する吸着部を下降させた状態でレーザ加工が行われるため、部分的とはいえ被加工物は平面を保持されていない。 In the configuration of the laser processing apparatus according to the first example of the prior art described above, at the time of through-hole processing, laser processing is performed in a state where the suction portion corresponding to the lower part of processing of the workpiece is lowered. However, the workpiece is not held flat.
 そのために、載置部にレーザによる損傷は与えないものの、上述のように厚さの薄いシート状あるいは箔状の被加工物の場合は、自重によって該当部分が垂れるようにくぼみが発生する。その結果、加工部分の平面度の悪化を生じる。平面度の悪化は、レーザの焦点のズレや加工位置のズレとなり精密な加工の妨げとなる。すなわち、所望の精密加工ができない。 For this reason, although the mounting portion is not damaged by the laser, in the case of a thin sheet-like or foil-like workpiece as described above, a depression is generated so that the corresponding portion may sag by its own weight. As a result, the flatness of the processed portion is deteriorated. Deterioration of the flatness causes deviation of the focus of the laser and deviation of the processing position, which hinders precise processing. That is, desired precision processing can not be performed.
 上述の第2例目の従来技術に係るレーザ加工装置の構成では、被加工物の対向する2辺を引っ張ることで平面を保持しようとするものである。上述のように厚さの薄いシート状あるいは箔状の被加工物の場合は、引っ張ることによる材質の伸びが発生する。その結果、被加工物の加工位置がズレたり、シワが発生したりし、第1例と同様に精密な加工が困難である。 In the configuration of the laser processing apparatus according to the second example of the prior art described above, a flat surface is to be held by pulling two opposing sides of the workpiece. As described above, in the case of a thin sheet-like or foil-like workpiece, stretching of the material occurs by pulling. As a result, the processing position of the workpiece shifts or wrinkles occur, and precise processing is difficult as in the first example.
国際公開第2009/001497号International Publication No. 2009/001497 特開2009-006356号公報JP, 2009-006356, A
 本発明は、厚さの非常に薄いシート状の被加工物であっても、精度の高いレーザ加工を行うことができるレーザ加工装置およびレーザ加工方法を提供する。 The present invention provides a laser processing apparatus and a laser processing method capable of performing high-precision laser processing even with a sheet-like workpiece having a very thin thickness.
 本発明のレーザ加工装置は、被加工物をレーザ加工する加工ヘッド部と、上下に昇降する分割された可動載置部を複数有して上記被加工物を保持する載置部と、上記載置部をX方向およびY方向に駆動する加工テーブルと、上記被加工物の上方に位置し上記被加工物の上面を吸着する上面吸着装置と、上記上面吸着装置を上下に昇降駆動する駆動部と、を備えた構成からなる。 A laser processing apparatus according to the present invention includes a processing head unit for laser processing a workpiece, and a mounting unit having a plurality of divided movable mounting units that vertically move up and down to hold the workpiece. A processing table for driving the mounting portion in the X direction and Y direction, an upper surface suction device positioned above the workpiece and suctioning the upper surface of the workpiece, and a drive unit for vertically moving the upper surface suction device up and down And consists of.
 この構成により、被加工物の加工エリア近傍を上面吸着装置の上方に保持することにより、厚さの非常に薄いシート状の被加工物であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。これにより、精度不良にともなう加工不良を低減することができる。 With this configuration, by holding the vicinity of the processing area of the workpiece above the upper surface suction device, even with a very thin sheet-like workpiece having a very thin thickness, high precision laser processing with very low deflection is also possible. It can be performed. As a result, it is possible to reduce processing defects associated with accuracy defects.
 また、本発明のレーザ加工方法は、上記記載のレーザ加工装置を用いて被加工物を加工するレーザ加工方法であって、被加工物の加工エリアを加工テーブルで移動する場合に、上面吸着装置を昇降させる工程を有する方法である。 Moreover, the laser processing method of the present invention is a laser processing method for processing a workpiece using the above-described laser processing apparatus, and when moving a processing area of the workpiece with a processing table, the upper surface suction device Method of raising and lowering the
 この方法により、厚さの非常に薄いシート状の被加工物であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 According to this method, it is possible to perform high-precision laser processing with very small deflection even for a sheet-like workpiece having a very thin thickness.
 また、本発明のレーザ加工方法は、上記記載のレーザ加工装置を用いて被加工物を加工するレーザ加工方法であって、被加工物の加工エリアを加工テーブルで移動する場合に、複数の可動載置部のうちの1つが下降している加工エリアをすべてレーザ加工し終わるまで、少なくとも加工エリアの進行方向に配置された上面吸着装置を下降させた状態でレーザ加工を行うレーザ加工方法である。 Moreover, the laser processing method of the present invention is a laser processing method for processing a workpiece using the above-described laser processing apparatus, and when moving the processing area of the workpiece with a processing table, a plurality of movable The laser processing method is to perform laser processing in a state in which the upper surface suction device disposed at least in the advancing direction of the processing area is lowered until all the processing area in which one of the mounting parts is lowered is completely laser processed. .
 この方法により、厚さの非常に薄いシート状の被加工物であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 According to this method, it is possible to perform high-precision laser processing with very small deflection even for a sheet-like workpiece having a very thin thickness.
 また、本発明のレーザ加工方法は、上記記載のレーザ加工装置を用いて被加工物を加工するレーザ加工方法であって、被加工物の加工エリアを加工テーブルで移動する場合に、複数の可動載置部のうちの1つが下降している加工エリアの1つ手前の加工エリアまでをすべてレーザ加工し終わるまで、少なくとも加工エリアの進行方向に配置された上面吸着装置を下降させた状態でレーザ加工を行い、最後にレーザ加工を行う加工エリアは、上面吸着装置を上昇させた状態でレーザ加工を行うレーザ加工方法である。 Moreover, the laser processing method of the present invention is a laser processing method for processing a workpiece using the above-described laser processing apparatus, and when moving the processing area of the workpiece with a processing table, a plurality of movable The laser is performed with the upper surface suction device arranged at least in the advancing direction of the processing area being lowered until the laser processing is all done up to the processing area one before the processing area where one of the mounting parts is descending The processing area which performs processing and finally performs laser processing is a laser processing method which performs laser processing in the state which raised the upper surface adsorption | suction apparatus.
 この方法により、厚さの非常に薄いシート状の被加工物であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 According to this method, it is possible to perform high-precision laser processing with very small deflection even for a sheet-like workpiece having a very thin thickness.
 このような構成または方法とすることで、被加工物の加工エリア近傍を上面吸着装置の上方に保持する。これにより、厚さの非常に薄いシート状の被加工物であっても、たわみも非常に少ない精度の高いレーザ加工が行うことができ、精度不良にともなう加工不良を低減することができる。 With such a configuration or method, the vicinity of the processing area of the workpiece is held above the top surface suction device. As a result, even in the case of a very thin sheet-like workpiece having a very thin thickness, it is possible to perform laser processing with high accuracy with very low deflection, and to reduce processing defects associated with accuracy defects.
図1は、本発明の実施の形態1の一例に係るレーザ加工装置の概略構成を示す斜視図である。FIG. 1 is a perspective view showing a schematic configuration of a laser processing apparatus according to an example of the first embodiment of the present invention. 図2は、本発明の実施の形態1の一例に係るレーザ加工装置をY方向から見た側面図である。FIG. 2 is a side view of the laser processing apparatus according to an example of the first embodiment of the present invention as viewed from the Y direction. 図3は、本発明の実施の形態1の一例に係るレーザ加工装置をX方向から見た側面図である。FIG. 3 is a side view of the laser processing apparatus according to an example of the first embodiment of the present invention as viewed from the X direction. 図4Aは、本発明の実施の形態1の一例に係る上面吸着装置の昇降状態を示す側面図である。FIG. 4A is a side view showing an elevation state of the top adsorption device according to an example of Embodiment 1 of the present invention. 図4Bは、本発明の実施の形態1の一例に係る上面吸着装置の昇降状態を示す側面図である。FIG. 4: B is a side view which shows the raising / lowering state of the upper surface adsorption | suction apparatus based on an example of Embodiment 1 of this invention. 図5Aは、本発明の実施の形態1の一例に係る上面吸着装置の詳細な構成を示す側面図である。FIG. 5A is a side view showing a detailed configuration of the top adsorption device according to an example of the first embodiment of the present invention. 図5Bは、本発明の実施の形態1の一例に係る上面吸着装置の詳細な構成を示す側面図である。FIG. 5B is a side view showing the detailed configuration of the top adsorption device according to an example of the first embodiment of the present invention. 図6Aは、本発明の実施の形態1の一例に係る上面吸着装置の異なる構成の詳細を示す側面図である。FIG. 6A is a side view showing the details of the different configuration of the top adsorption device according to an example of the first embodiment of the present invention. 図6Bは、本発明の実施の形態1の一例に係る上面吸着装置の異なる構成の詳細を示す側面図である。FIG. 6B is a side view showing the details of the different configuration of the top adsorption device according to an example of the first embodiment of the present invention. 図7Aは、本発明の実施の形態1の一例に係る上面吸着装置の上面吸着の効果を示す図である。FIG. 7A is a view showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention. 図7Bは、本発明の実施の形態1の一例に係る上面吸着装置の上面吸着の効果を示す図である。FIG. 7B is a diagram showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention. 図8Aは、本発明の実施の形態2に係る被加工物の加工エリアの設定の一例を示す配置図である。FIG. 8A is a layout diagram showing an example of setting of a processing area of a workpiece according to Embodiment 2 of the present invention. 図8Bは、本発明の実施の形態2に係る被加工物の加工エリアの設定の一例を示す配置図である。FIG. 8B is a layout view showing an example of setting of a processing area of a workpiece according to Embodiment 2 of the present invention. 図9Aは、本発明の実施の形態2の一例に係る上面吸着装置の異なる昇降状態を示す側面図である。FIG. 9A is a side view showing the upper and lower surface adsorption devices according to an example of Embodiment 2 of the present invention in different elevation states. 図9Bは、本発明の実施の形態2の一例に係る上面吸着装置の異なる昇降状態を示す側面図である。FIG. 9B is a side view showing the upper and lower surface adsorption devices according to an example of the second embodiment of the present invention in different elevation states. 図9Cは、本発明の実施の形態2の一例に係る上面吸着装置の異なる昇降状態を示す側面図である。FIG. 9C is a side view showing different lifting and lowering states of the top adsorption device according to an example of Embodiment 2 of the present invention. 図10は、従来技術に係るレーザ加工装置の載置部の構成を示す側面図である。FIG. 10 is a side view showing the configuration of the mounting unit of the laser processing apparatus according to the prior art. 図11は、従来技術に係るレーザ加工装置の被加工物の保持状態を示す斜視図である。FIG. 11 is a perspective view showing the holding state of the workpiece of the laser processing apparatus according to the prior art.
 以下、本発明の実施の形態について、図面を参照しながら説明する。以下の図面においては、同じ構成要素については同じ符号を付しているので説明を省略する場合がある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same components are denoted by the same reference numerals, and the description may be omitted.
 (実施の形態1)
 図1は本発明の実施の形態1の一例に係るレーザ加工装置100の概略構成を示す斜視図である。図2はレーザ加工装置100をY方向から見た側面図、図3は同様にX方向から見た側面図である。
Embodiment 1
FIG. 1 is a perspective view showing a schematic configuration of a laser processing apparatus 100 according to an example of the first embodiment of the present invention. 2 is a side view of the laser processing apparatus 100 as viewed in the Y direction, and FIG. 3 is a side view of the laser processing apparatus 100 as viewed in the X direction.
 図1に示すように、レーザ発振器101は、内部でレーザが発振されレーザ102を射出する。射出されたレーザ102はミラー103で進行方向を変えられる。ミラー103で進行方向を変えたレーザ102の進行方向には、レーザ102のビーム径を調整するためのコリメータレンズ104を配置している。さらにコリメータレンズ104を通過したレーザ102のビーム形状を整形するためのマスク105と、このマスク105を通過したレーザ102の雑光を抑えるためのアイリス106を配置する。 As shown in FIG. 1, in the laser oscillator 101, a laser is oscillated inside and a laser 102 is emitted. The emitted laser 102 can change its traveling direction by the mirror 103. In the traveling direction of the laser 102 whose traveling direction has been changed by the mirror 103, a collimator lens 104 for adjusting the beam diameter of the laser 102 is disposed. Furthermore, a mask 105 for shaping the beam shape of the laser 102 that has passed through the collimator lens 104 and an iris 106 for suppressing miscellaneous light of the laser 102 that has passed through the mask 105 are disposed.
 アイリス106を通過したレーザ102は、X軸方向に振るためのガルバノXミラー109と、ガルバノXミラー109で反射されたレーザ102をY軸方向に振るためのガルバノYミラー110とにより、被加工物111上の照射したい位置に位置決めされる。さらに、ガルバノYミラー110で反射したレーザ102が、fθレンズ107で集光され、被加工物111の加工点に照射されるようにレーザ加工装置100を構成する。 The laser 102 which has passed through the iris 106 is processed by the galvano X mirror 109 for swinging in the X-axis direction and the galvano Y mirror 110 for swinging the laser 102 reflected by the galvano X mirror 109 in the Y-axis direction. It is positioned at a desired position on the surface 111. Furthermore, the laser processing apparatus 100 is configured such that the laser 102 reflected by the galvano Y mirror 110 is condensed by the fθ lens 107 and irradiated to the processing point of the workpiece 111.
 そして、これらガルバノXミラー109、ガルバノYミラー110およびレーザ発振器101を制御する制御コントローラ108が設けられている。 A controller 108 is provided to control the galvano X mirror 109, the galvano Y mirror 110, and the laser oscillator 101.
 被加工物111は複数個設けられた可動載置部121と外周載置部123上に置かれている。この可動載置部121と外周載置部123から載置部120は構成されている。可動載置部121には複数の載置部吸着孔122が設けられ、また、外周載置部123にも外周吸着孔124が設けられている。被加工物111は、載置部吸着孔122と外周吸着孔124により載置部120の下部から真空引きすることにより吸着保持される。 A plurality of workpieces 111 are placed on a plurality of movable mounting portions 121 and an outer peripheral mounting portion 123. The mounting portion 120 is configured of the movable mounting portion 121 and the outer peripheral mounting portion 123. The movable placement portion 121 is provided with a plurality of placement portion suction holes 122, and the outer circumference placement portion 123 is also provided with an outer circumference suction hole 124. The workpiece 111 is suctioned and held by vacuum suction from the lower part of the mounting unit 120 by the mounting unit suction holes 122 and the outer circumference suction holes 124.
 可動載置部121は、それぞれ1対の可動載置部昇降シリンダ125によって支持されている。可動載置部昇降シリンダ125は、本実施の形態では空気圧により制御されるエアシリンダを用いており、複数の可動載置部121のうちの個々の可動載置部121を独立に上下させることができる。 The movable mounting portions 121 are supported by a pair of movable mounting portion elevating cylinders 125, respectively. In the present embodiment, the movable mounting unit elevating cylinder 125 uses an air cylinder controlled by air pressure, and can individually move the movable mounting units 121 of the plurality of movable mounting units 121 independently. it can.
 被加工物111を保持する可動載置部121と加工テーブル115との間の空間は、図2に示すように下部吸塵装置112となっており、空気流113によってレーザ加工時に被加工物111の下部に発生する加工屑を集塵する機能を有している。 A space between the movable mounting portion 121 for holding the workpiece 111 and the processing table 115 is a lower dust collecting device 112 as shown in FIG. It has the function of collecting dust generated in the lower part.
 また、被加工物111の上方のレーザ照射面側には上部吸塵装置130が設置されている。上部吸塵装置130は、ガルバノXミラー109とガルバノYミラー110とによって制御されるレーザ102の照射範囲を囲うように設けられている。上部吸塵装置130は、その一部に設けられた穴より内部の空気を吸引することで、レーザ加工の際に被加工物111の上部に発生する加工屑を集塵・排出する。 Further, an upper dust collecting apparatus 130 is installed on the laser irradiation surface side above the workpiece 111. The upper dust collecting apparatus 130 is provided so as to surround the irradiation range of the laser 102 controlled by the galvano X mirror 109 and the galvano Y mirror 110. The upper dust collecting apparatus 130 sucks the internal air from the holes provided in a part of the upper dust collecting apparatus 130 to collect and discharge the machining waste generated on the upper part of the workpiece 111 at the time of the laser processing.
 上部吸塵装置130には、1対の上面吸着装置131、132と、それぞれの上面吸着装置131、132を上下させる上面吸着装置昇降シリンダ133が取り付けられている。本実施の形態では、上面吸着装置昇降シリンダ133にはエアシリンダを用いて個々の上面吸着装置131、132を独立に上下させることができるように構成している。 The upper dust collecting device 130 is provided with a pair of upper surface suction devices 131 and 132 and a top suction device elevating cylinder 133 for moving the upper surface suction devices 131 and 132 up and down. In the present embodiment, the upper surface suction device lifting and lowering cylinder 133 is configured to be able to vertically move the respective upper surface suction devices 131 and 132 independently using an air cylinder.
 本実施の形態にかかるレーザ加工装置100の構成について、図2と図3を用いてさらに詳細に説明する。 The configuration of the laser processing apparatus 100 according to the present embodiment will be described in more detail with reference to FIGS. 2 and 3.
 まず、図2に示すように、加工テーブル115は、Yテーブル116とXテーブル118の大きく2つのブロックより構成されている。 First, as shown in FIG. 2, the processing table 115 is composed of two large blocks of a Y table 116 and an X table 118.
 Yテーブル116は、可動載置部121、外周載置部123、下部吸塵装置112、および、これらに付随する一式の構成を載置し、Y方向に可動するように構成されている。Y方向の移動には、Y軸移動モータ117を駆動することでボールねじを回転させ、そこに載置されているもの一式ごとYテーブル116をスライドさせることで行われる。 The Y table 116 is configured to place the movable mounting portion 121, the outer peripheral mounting portion 123, the lower dust collecting device 112, and a set of components attached thereto, and to move in the Y direction. The movement in the Y direction is performed by rotating the ball screw by driving the Y-axis moving motor 117 and sliding the Y table 116 for every set placed thereon.
 Xテーブル118は、Yテーブル116とそれに載置されている構成一式をさらに載置し、X方向に可動するように構成されている。X方向の移動には、X軸移動モータ119を駆動することでボールねじを回転させ、そこに載置されているもの一式ごとXテーブル118をスライドさせることで行われる。 The X-table 118 further mounts the Y-table 116 and the configuration set placed thereon, and is configured to move in the X direction. The movement in the X direction is performed by rotating the ball screw by driving the X-axis moving motor 119 and sliding the X-table 118 together with the set placed thereon.
 次に、図3に示すように、レーザ102を反射し照射位置を制御するガルバノXミラー109、ガルバノYミラー110、およびレーザ102の方向を被加工物111の面に対し垂直方向にすると共に集光するfθレンズ107は、加工ヘッド部135に設置されている。 Next, as shown in FIG. 3, the directions of the galvano X mirror 109, the galvano Y mirror 110, and the laser 102 that reflect the laser 102 and control the irradiation position are made perpendicular to the surface of the workpiece 111 and collected. The fθ lens 107 that emits light is installed in the processing head unit 135.
 加工ヘッド部135はZスライダ136に取り付けられており、Zスライダ136は、Z軸移動モータ137を駆動することでZ方向、すなわち上下方向に可動となっている。Zスライダ136およびZ軸移動モータ137は本体フレーム140に設置されている。 The processing head portion 135 is attached to the Z-slider 136, and the Z-slider 136 is movable in the Z direction, that is, in the vertical direction by driving the Z-axis moving motor 137. The Z-slider 136 and the Z-axis movement motor 137 are installed on the main body frame 140.
 また、上部吸塵装置130も本体フレーム140に固定されている。そのため上部吸塵装置130は装置本体との位置関係は固定されている。上面吸着装置昇降シリンダ133は上部吸塵装置130に固定され、空気圧を制御することで上面吸着装置131、132を上下させることができる。 In addition, the upper dust collecting device 130 is also fixed to the main body frame 140. Therefore, the positional relationship between the upper dust collecting apparatus 130 and the apparatus main body is fixed. The upper surface adsorption device lifting and lowering cylinder 133 is fixed to the upper surface dust collecting device 130, and can control the air pressure to move the upper surface adsorption devices 131 and 132 up and down.
 上面吸着装置131、132は、被加工物111のレーザ照射面側、すなわち上面から被加工物111を吸着可能なように構成している。例えば、本実施の形態では、被加工物111に接する面に吸着孔を設け、真空引きを行うことで被加工物111を上面から吸着可能に構成している。また、上面吸着装置131、132を上下に昇降駆動する駆動部150は、上面吸着装置昇降シリンダ、Zスライダ136およびZ軸移動モータ137を有している。 The upper surface adsorption devices 131 and 132 are configured to be able to adsorb the workpiece 111 from the laser irradiation surface side of the workpiece 111, that is, the upper surface. For example, in the present embodiment, suction holes are provided on the surface in contact with the workpiece 111, and the workpiece 111 is configured to be able to be sucked from the top by performing vacuum suction. The driving unit 150 for vertically moving the upper surface suction devices 131 and 132 up and down includes the upper surface suction device elevating cylinder, the Z slider 136 and the Z axis moving motor 137.
 以上のように構成されたレーザ加工装置100の動作について説明する。 The operation of the laser processing apparatus 100 configured as described above will be described.
 被加工物111をレーザ加工装置100に搭載するにあたり、まず、載置部吸着孔122と外周吸着孔124の真空引きを止めて吸着していない状態にし、可動載置部121と上面吸着装置131、132を全て上昇させる。そして、加工テーブル115を移動させることで載置部120を被加工物の搭載位置まで移動させる。 In mounting the workpiece 111 on the laser processing apparatus 100, first, the evacuation of the mounting portion adsorption holes 122 and the outer periphery adsorption holes 124 is stopped to prevent the adsorption, and the movable mounting portion 121 and the upper surface adsorption device 131 , Raise all 132. Then, by moving the processing table 115, the mounting unit 120 is moved to the mounting position of the workpiece.
 被加工物111を載置部120上に搭載した後、載置部吸着孔122と外周吸着孔124を真空引きして被加工物111の下面を吸着保持する。 After the workpiece 111 is mounted on the mounting portion 120, the mounting portion suction holes 122 and the outer peripheral suction holes 124 are evacuated to hold the lower surface of the workpiece 111 by suction.
 被加工物111の保持が完了したのち以下の動作を開始する。被加工物111を保持した載置部120を第1の加工エリアに移動させるべく加工テーブルの移動を開始する。原点位置にある加工ヘッド部135を焦点位置への移動を開始する。ここで、加工ヘッド部135は、Z軸方向に沿ってのみ移動する。第1の加工エリアの下面にある可動載置部121のみ、当該可動載置部121に設けられた載置部吸着孔122の真空引きをブローに切り換え、当該部位の被加工物111の下面の吸着保持を止め、当該可動載置部121を下降する。これらの動作を並行して行う。 After the holding of the workpiece 111 is completed, the following operation is started. The movement of the processing table is started in order to move the mounting unit 120 holding the workpiece 111 to the first processing area. The movement of the processing head 135 at the origin position to the focal position is started. Here, the processing head unit 135 moves only along the Z-axis direction. Only for the movable mounting portion 121 on the lower surface of the first processing area, the vacuuming of the mounting portion suction holes 122 provided on the movable mounting portion 121 is switched to blow, and The suction holding is stopped and the movable mounting portion 121 is lowered. Perform these operations in parallel.
 なお、個々の加工エリアはガルバノミラー(ガルバノXミラー109およびガルバノYミラー110)のスキャン範囲内に設定されており、当該エリア内のレーザ加工の位置決めはガルバノミラーを制御することで行われる。 Each processing area is set within the scan range of the galvano mirror (galvano X mirror 109 and galvano Y mirror 110), and the positioning of the laser processing in the area is performed by controlling the galvano mirror.
 以上の動作が完了し、加工ヘッド部135と上部吸塵装置130のある位置に被加工物111の第1の加工エリアが到着したのち、上面吸着装置131、132を下降させ、被加工物111の表面に密着させる。 After the above operation is completed and the first processing area of the workpiece 111 arrives at the position where the processing head portion 135 and the upper dust collecting device 130 are located, the upper surface suction devices 131 and 132 are lowered to move the workpiece 111 Adhere to the surface.
 図4A、図4Bは、本発明の実施の形態1の一例に係る上面吸着装置の昇降状態を示す側面図である。図5A、図5Bは、本発明の実施の形態1の一例に係る上面吸着装置の詳細な構成を示す側面図である。図6A、図6Bは、本発明の実施の形態1の一例に係る上面吸着装置の異なる構成の詳細を示す側面図である。 FIG. 4A and FIG. 4B are side views showing the elevation state of the upper surface adsorption device according to an example of Embodiment 1 of the present invention. FIG. 5A and FIG. 5B are side views showing the detailed configuration of the upper surface adsorption device according to an example of the first embodiment of the present invention. 6A and 6B are side views showing the details of different configurations of the upper surface adsorption device according to an example of the first embodiment of the present invention.
 図4Aに示す状態が、上面吸着装置131、132が上昇した状態、図4Bに示す状態が、上面吸着装置131、132が下降し被加工物111の表面に密着させた状態である。 The state shown in FIG. 4A is the state in which the upper surface suction devices 131 and 132 are raised, and the state shown in FIG. 4B is the state in which the upper surface suction devices 131 and 132 are lowered and in close contact with the surface of the workpiece 111.
 上面吸着装置131、132が図4Bに示すごとく下降した状態になったら、被加工物111の上面の吸着を開始する。その詳細な構成と動作を図5に示す。 When the upper surface adsorption devices 131 and 132 are lowered as shown in FIG. 4B, adsorption of the upper surface of the workpiece 111 is started. The detailed configuration and operation are shown in FIG.
 図5Aは、上面吸着装置131、132が下降した状態をY方向より見た側面図、図5Bは、上面吸着装置131、132が下降した状態をX方向より見た側面図である。それぞれ1対設けられた上面吸着装置昇降シリンダ133は、上部吸塵装置130に固定されている。上面吸着装置昇降シリンダ133はエアシリンダで構成され、エアチューブ141を介して空気圧を制御することで上面吸着装置131、132を上下させることができる。ここでは上面吸着装置131、132とも下降させた状態を示す。 FIG. 5A is a side view of a state in which the top adsorption devices 131 and 132 are lowered as viewed in the Y direction, and FIG. 5B is a side view of the state in which the top adsorption devices 131 and 132 are lowered in the X direction. A pair of upper surface adsorption device lifting and lowering cylinders 133 are fixed to the upper dust collecting device 130. The upper surface adsorption device lifting and lowering cylinder 133 is constituted by an air cylinder, and by controlling the air pressure via the air tube 141, the upper surface adsorption devices 131 and 132 can be moved up and down. Here, the upper surface suction devices 131 and 132 are both lowered.
 上面吸着装置131、132は、被加工物111のレーザ照射側の面、すなわち上面から被加工物111を吸着可能なように上面吸着孔142が設けられている。上面吸着装置131、132を下降させた後、エアチューブ143を介して真空引きを行うことで被加工物111を上面から吸着する。 The upper surface adsorption devices 131 and 132 are provided with upper surface adsorption holes 142 so that the workpiece 111 can be adsorbed from the surface on the laser irradiation side of the workpiece 111, that is, the upper surface. After the upper surface adsorption devices 131 and 132 are lowered, the workpiece 111 is adsorbed from the upper surface by performing vacuum suction via the air tube 143.
 図5Aに示すように、上面吸着装置131、132の外形の長手方向を可動載置部121の長手方向に対し垂直の方向に設けておく。本実施の形態においては上面吸着装置131、132の長手方向はX軸方向、可動載置部121の長手方向はY軸方向としている。 As shown to FIG. 5A, the longitudinal direction of the external shape of the upper surface adsorption | suction apparatus 131,132 is provided in the perpendicular | vertical direction with respect to the longitudinal direction of the movable mounting part 121. FIG. In the present embodiment, the longitudinal direction of the upper surface suction devices 131 and 132 is the X axis direction, and the longitudinal direction of the movable mounting portion 121 is the Y axis direction.
 そして、上面吸着装置131、132の長手方向の大きさは、ひとつの可動載置部121の幅より少しだけ小さく設定しておくと良い。こうすれば、上面吸着装置131、132が下降した際、被加工物111が可動載置部121と上面吸着装置131、132との間に挟まれて変形したり、傷ついたりすることなく、被加工物111の上面の上面吸着装置131、132周辺の面精度を確保することができる。 The size in the longitudinal direction of the upper surface suction devices 131 and 132 may be set to be slightly smaller than the width of one movable mounting portion 121. In this way, when the upper surface suction devices 131 and 132 are lowered, the workpiece 111 is not sandwiched between the movable mounting portion 121 and the upper surface suction devices 131 and 132 and deformed or damaged. The surface accuracy around the upper surface suction devices 131 and 132 on the upper surface of the workpiece 111 can be secured.
 ここで、少しだけ小さい設定とは、レーザ加工装置100の駆動精度と被加工物111の厚さやそのバラツキから被加工物111を傷つけることのない範囲で設定すればよい。例えば、可動載置部121の幅が50mmの設定であれば、47mmから49mmまでの範囲、特には48mmを基準寸法として設定すると良い。 Here, setting slightly small may be set in a range where the workpiece 111 is not damaged due to the driving accuracy of the laser processing apparatus 100 and the thickness and the variation of the workpiece 111. For example, if the width of the movable mounting portion 121 is set to 50 mm, a range of 47 mm to 49 mm, in particular 48 mm, may be set as a reference dimension.
 あるいは、図6A、図6Bに示すように、上面吸着装置131、132の長手方向の大きさを、可動載置部121の幅より大きく設定しておくこともできる。こうすれば、被加工物111の移動ごとに上面吸着装置131、132を上昇させる必要はあるが、上面吸着装置131、132の下降量を精密に制御せずとも、被加工物111に接するまで下降させて吸着を開始する。このようにするだけで、被加工物111の上面吸着装置131、132周辺の面精度を確保することができる。 Or as shown to FIG. 6A and FIG. 6B, the magnitude | size of the longitudinal direction of the upper surface adsorption | suction apparatus 131,132 can also be set larger than the width | variety of the movable mounting part 121. FIG. In this case, although it is necessary to raise the upper surface adsorption devices 131 and 132 every time the workpiece 111 moves, the upper surface adsorption devices 131 and 132 may be brought into contact with the workpiece 111 without precisely controlling the amount of descent. Lower it to start adsorption. Only in this way, it is possible to secure the surface accuracy around the upper surface suction devices 131 and 132 of the workpiece 111.
 図7A、図7Bは、本発明の実施の形態1の一例に係る上面吸着装置の上面吸着の効果を示す図である。図5A、図5Bまたは図6A、図6Bのように構成した上面吸着装置131、132の作用を図7Aに示す。図7Aは当該上面吸着装置131、132がない場合の被加工物111の状態を示す。たとえば、被加工物111が、ガラスエポキシをPET(ポリエチレンテレフタレート)フィルムで挟み込んだ厚さ100μm以下のシート状の基板である場合を考える。この場合に可動載置部121の幅が50mmとすると、その変形量が数十μmのオーダになり、この変形量に対応したZ軸方向の焦点のずれとX軸方向およびY軸方向の位置ずれは、精密な加工に対し大きな影響を与える。すなわち、これらの焦点のずれまたは位置ずれは、精密な加工の妨げとなり、加工不良を生じる。 7A and 7B are diagrams showing the effect of upper surface adsorption of the upper surface adsorption device according to an example of the first embodiment of the present invention. The operation of the top adsorbers 131, 132 configured as in FIG. 5A, 5B or 6A, 6B is shown in FIG. 7A. FIG. 7A shows the state of the workpiece 111 when the top adsorption devices 131 and 132 are not present. For example, consider a case where the workpiece 111 is a sheet-like substrate having a thickness of 100 μm or less, in which a glass epoxy is sandwiched by a PET (polyethylene terephthalate) film. In this case, if the width of the movable mounting portion 121 is 50 mm, the amount of deformation is on the order of several tens of μm, and the focal point shift in the Z-axis direction and the positions in the X-axis and Y-axis directions corresponding to this amount of deformation Deviation has a great effect on precise processing. That is, these focus shifts or misalignments hinder precise processing, resulting in processing defects.
 しかしながら、本発明のレーザ加工装置100であれば、図7Bに示すごとく、上面吸着装置131、132が加工エリア近傍で被加工物111の上面を吸着する。これにより、当該加工エリアに可動載置部121が不在であっても被加工物111の変形を防止することができる。 However, in the case of the laser processing apparatus 100 according to the present invention, as shown in FIG. 7B, the upper surface adsorption devices 131 and 132 adsorb the upper surface of the workpiece 111 in the vicinity of the processing area. Thereby, even if the movable mounting part 121 is absent in the said process area, a deformation | transformation of the to-be-processed object 111 can be prevented.
 以上のように、第1の加工エリアにおける準備が整った後、ガルバノXミラー109とガルバノYミラー110を制御し、穴加工位置にレーザ102の照射を開始する。所定のレーザの照射が完了し、第1の加工エリア内の全ての穴加工が完了したら、上面吸着孔142の真空引きを止めて被加工物111の吸着保持を止める。その後、上面吸着装置131、132上昇させ、図4Aに示す状態に戻す。 As described above, after the preparation in the first processing area is completed, the galvano X mirror 109 and the galvano Y mirror 110 are controlled to start irradiation of the laser 102 at the hole processing position. When the irradiation of the predetermined laser is completed and all the holes in the first processing area are completed, the evacuation of the upper surface adsorption holes 142 is stopped to stop the adsorption and holding of the workpiece 111. Thereafter, the upper surface suction devices 131 and 132 are raised to return to the state shown in FIG. 4A.
 次に第2の加工エリアに移動するために、加工テーブル115を本実施の形態ではY方向に移動させる。第2の加工エリアで上面吸着装置131、132の下降、吸着、レーザ穴加工、吸着の休止、上面吸着装置131、132の上昇に至る一連の動作の手順は上述のとおりである。以上のようにして、ひとつの可動載置部121が下降している加工エリアをすべてレーザ加工し終わるまで繰り返す。 Next, in order to move to the second processing area, the processing table 115 is moved in the Y direction in the present embodiment. The procedure of a series of operations leading to the downward movement of the upper surface adsorption devices 131 and 132, adsorption, laser drilling, pause of adsorption, and the elevation of the upper surface adsorption devices 131 and 132 in the second processing area is as described above. As described above, the process is repeated until all the processing area in which one movable mounting portion 121 is lowered has been subjected to the laser processing.
 複数の可動載置部121のうちの1つの可動載置部121が下降している加工エリアすべてのレーザ加工をし終わったら、上面吸着孔142の真空引きを止めて被加工物111の吸着保持を止める。その後、上面吸着装置131、132を上昇させ、図4Aに示す状態に戻す。 After completion of the laser processing of the entire processing area in which one of the movable mounting portions 121 of the plurality of movable mounting portions 121 is lowered, the vacuum suction of the upper surface suction holes 142 is stopped to hold the workpiece 111 by suction. Stop. Thereafter, the top adsorption devices 131 and 132 are raised to return to the state shown in FIG. 4A.
 上面吸着装置131、132が図4Aに示す上昇した状態になったら、以下の動作を開始する。まず、載置部120を次の加工エリアに移動すべく、加工テーブル115をX方向に移動開始する。すでに下降していた可動載置部121のブローを止めながら、当該可動載置部121を上昇させる。上昇が完了したら当該可動載置部121に設けた載置部吸着孔122を真空引きして、被加工物111を再び吸着保持する。次の加工エリアに対応する位置の可動載置部121に設けた載置部吸着孔122の真空引きをブローに切り換える。当該箇所の被加工物111の下面の保持がされなくなったら、当該箇所の可動載置部121を下降する。これらの動作を並行して行う。 When the top adsorption devices 131 and 132 are in the raised state shown in FIG. 4A, the following operation is started. First, movement of the processing table 115 in the X direction is started to move the mounting unit 120 to the next processing area. The movable mounting portion 121 is raised while stopping the blow of the movable mounting portion 121 that has already been lowered. When the lifting is completed, the mounting portion suction holes 122 provided in the movable mounting portion 121 are evacuated to hold the workpiece 111 again by suction. The evacuation of the mounting portion suction hole 122 provided in the movable mounting portion 121 at the position corresponding to the next processing area is switched to blow. When holding of the lower surface of the workpiece 111 at the relevant position is not performed, the movable mounting portion 121 at the relevant position is lowered. Perform these operations in parallel.
 そして、被加工物111が加工エリアに到着したのち、上面吸着装置131、132を下降させ、被加工物111の表面に密着させ、被加工物111の上面の吸着を開始する。 Then, after the workpiece 111 arrives at the processing area, the upper surface suction devices 131 and 132 are lowered to be in close contact with the surface of the workpiece 111 and adsorption of the top surface of the workpiece 111 is started.
 以上のように、当該加工エリアにおける準備が整った後、ガルバノXミラー109とガルバノYミラー110を制御し、穴加工位置にレーザ102の照射を開始する。 As described above, after the preparation in the processing area is completed, the galvano X mirror 109 and the galvano Y mirror 110 are controlled, and the irradiation of the laser 102 to the drilling position is started.
 上述の動作を繰り返し、被加工物111の所定の加工エリアすべての加工を行う。所定の加工エリアのすべての加工が完了したら、上面吸着孔142の真空引きを止めて被加工物111の吸着保持を止める。その後、上面吸着装置131、132を上昇させ、図4Aに示す状態に戻す。 The above-described operation is repeated to process all of the predetermined processing area of the workpiece 111. When all the processing in the predetermined processing area is completed, the evacuation of the upper surface adsorption holes 142 is stopped to stop the adsorption and holding of the workpiece 111. Thereafter, the top adsorption devices 131 and 132 are raised to return to the state shown in FIG. 4A.
 上面吸着装置131、132が図4Aに示す上昇した状態になったら、以下の動作を開始する。まず、被加工物111を取り出し位置に移動を開始すべく、加工テーブル115の移動を開始する。加工ヘッド部135の原点への移動を開始する。すでに下降していた可動載置部121のブローを止めながら、当該可動載置部121を上昇させる。上昇が完了したら当該可動載置部121に設けた載置部吸着孔122を真空引きして、被加工物111を再び吸着保持する。これらの動作を並行して行う。 When the top adsorption devices 131 and 132 are in the raised state shown in FIG. 4A, the following operation is started. First, movement of the processing table 115 is started in order to start moving the workpiece 111 to the removal position. The movement of the processing head unit 135 to the origin is started. The movable mounting portion 121 is raised while stopping the blow of the movable mounting portion 121 that has already been lowered. When the lifting is completed, the mounting portion suction holes 122 provided in the movable mounting portion 121 are evacuated to hold the workpiece 111 again by suction. Perform these operations in parallel.
 上述の全ての動作が完了したら、すべての載置部吸着孔122とすべての外周吸着孔124の真空引きを止める。そして、被加工物111の吸着保持がされなくなるのを確認し、被加工物111の取出装置(図示せず)が載置部120から被加工物111を取出す。 When all the operations described above are completed, the evacuation of all the mounting portion suction holes 122 and all the outer circumference suction holes 124 is stopped. Then, it is confirmed that suction holding of the workpiece 111 is not performed, and a device (not shown) for removing the workpiece 111 takes out the workpiece 111 from the placement unit 120.
 すなわち、本発明のレーザ加工装置100は、加工ヘッド部135と、載置部120と、加工テーブル115と、上面吸着装置131、132と、駆動部150と、を備えている。ここで、加工ヘッド部135は、被加工物111をレーザ加工する。載置部120は、上下に昇降する分割された可動載置部121を複数有して被加工物111を保持する。加工テーブル115は、載置部120をX方向およびY方向に駆動する。上面吸着装置131、132は、被加工物111の上方に位置し被加工物111の上面を吸着する。駆動部150は、上面吸着装置131、132を上下に昇降駆動する。 That is, the laser processing apparatus 100 of the present invention includes the processing head unit 135, the placement unit 120, the processing table 115, the upper surface suction devices 131 and 132, and the drive unit 150. Here, the processing head unit 135 performs laser processing on the workpiece 111. The placement unit 120 has a plurality of divided movable placement units 121 that move up and down and holds the workpiece 111. The processing table 115 drives the placement unit 120 in the X direction and the Y direction. The upper surface adsorption devices 131 and 132 are located above the workpiece 111 and adsorb the upper surface of the workpiece 111. The drive unit 150 raises and lowers the upper surface suction devices 131 and 132 up and down.
 この構成により、被加工物111の加工エリア近傍を上面吸着装置131、132の上方に保持することにより、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。これにより、精度不良にともなう加工不良を低減することができる。 With this configuration, by holding the vicinity of the processing area of the workpiece 111 above the upper surface suction devices 131 and 132, even a very thin sheet-like workpiece 111 with very small thickness is also extremely small. Highly accurate laser processing can be performed. As a result, it is possible to reduce processing defects associated with accuracy defects.
 また、上面吸着装置131、132を一対設け、それぞれを独立して上下に昇降駆動するように構成している。 In addition, a pair of upper surface suction devices 131 and 132 are provided, and are configured to be vertically driven to move up and down independently.
 この構成により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 With this configuration, it is possible to perform highly precise laser processing with very small deflection even with a sheet-like workpiece 111 having a very small thickness.
 また、上面吸着装置131、132の長手方向は、可動載置部121の長手方向と垂直となるように設置し、上面吸着装置131、132の長手方向の大きさを可動載置部121の幅に対して大きく設定した構成としている。 The longitudinal direction of the upper surface suction devices 131 and 132 is set to be perpendicular to the longitudinal direction of the movable mounting portion 121, and the size in the longitudinal direction of the upper surface suction devices 131 and 132 is the width of the movable mounting portion 121. The configuration is set largely for
 この構成により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 With this configuration, it is possible to perform highly precise laser processing with very small deflection even with a sheet-like workpiece 111 having a very small thickness.
 また、上面吸着装置131、132が、電圧を印加することにより被加工物111を吸着する静電チャックで形成されている構成としてもよい。 In addition, the upper surface suction devices 131 and 132 may be formed of an electrostatic chuck that sucks the workpiece 111 by applying a voltage.
 この構成により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 With this configuration, it is possible to perform highly precise laser processing with very small deflection even with a sheet-like workpiece 111 having a very small thickness.
 また、上面吸着装置131、132の被加工物111の表面に接する面に吸着孔を設け、吸引する空気圧によって被加工物111を吸着する構成としている。 Further, suction holes are provided on the surfaces of the upper surface suction devices 131 and 132 in contact with the surface of the workpiece 111, and the workpiece 111 is adsorbed by the suctioned air pressure.
 この構成により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 With this configuration, it is possible to perform highly precise laser processing with very small deflection even with a sheet-like workpiece 111 having a very small thickness.
 以上のように、本発明のレーザ加工装置100では、貫通したレーザ102が到達し得る位置の可動載置部121を他の載置部より下部に位置させてレーザ102の集光範囲から外す。これにより、レーザ102による損傷を受けないようにし、その他の加工エリアについては吸着保持される。それと共に、可動載置部121が下降している加工エリア近傍を上面吸着装置131、132が上方に保持される。これにより、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工が行えるものである。 As described above, in the laser processing apparatus 100 of the present invention, the movable mounting portion 121 at a position where the penetrated laser 102 can reach is positioned below the other mounting portions and removed from the focusing range of the laser 102. As a result, the laser 102 is prevented from being damaged, and the other processing areas are held by suction. At the same time, the upper surface suction devices 131 and 132 are held upward in the vicinity of the processing area in which the movable mounting portion 121 is lowered. As a result, even with a very thin sheet-like workpiece 111 having a very small thickness, highly accurate laser processing with very low deflection can be performed.
 これは、被加工物111の加工エリア近傍で上下から挟みこむように吸着保持可能な構成であれば格別の効果を奏することができる。上面吸着装置131、132と載置部120を可動載置部121に分割したレーザ加工装置100と組み合わせることで、より高い効果を奏することができるものである。 This can produce a remarkable effect as long as it can be held by suction so as to be sandwiched from above and below in the vicinity of the processing area of the workpiece 111. By combining the upper surface suction devices 131 and 132 and the mounting unit 120 with the laser processing apparatus 100 divided into the movable mounting units 121, higher effects can be achieved.
 なお、本実施の形態において上面吸着装置131、132の被加工物111の吸着を真空引きすることで実現する例を示したが、異なる吸着手段を用いても実現できる。たとえば、静電チャックを用いても良い。これは、電極を埋め込んだ誘電体で上面吸着装置131、132を形成し、当該電極に電圧を印加することで、誘電体を通して被加工物であるシートを吸着することができる。誘電体としては、絶縁耐圧と誘電率がともに高いものであればよく、例えば、炭化シリコン、アルミナ、窒化アルミなどセラミック系の材質が優れている。静電チャックは真空引きによる吸着に比べ、吸着・脱離の応答速度が著しく早く、静電チャックを上面吸着装置131、132に用いることで、全体の加工時間の短縮を図ることができる。 In the present embodiment, an example is shown in which the adsorption of the work piece 111 of the upper surface adsorption devices 131 and 132 is realized by evacuating, but can be realized by using different adsorption means. For example, an electrostatic chuck may be used. In this method, the upper surface adsorption devices 131 and 132 are formed of a dielectric in which electrodes are embedded, and a voltage is applied to the electrodes, whereby a sheet as a workpiece can be adsorbed through the dielectric. As the dielectric, any material having high withstand voltage and dielectric constant may be used. For example, ceramic materials such as silicon carbide, alumina, and aluminum nitride are excellent. The electrostatic chuck has a response speed for adsorption / desorption that is significantly faster than adsorption by vacuum suction, and the overall processing time can be shortened by using the electrostatic chuck for the top surface adsorption devices 131 and 132.
 すなわち、上面吸着装置131、132が、電圧を印加することにより被加工物111を吸着する静電チャックで形成されている構成としている。 That is, the upper surface suction devices 131 and 132 are formed of an electrostatic chuck that sucks the workpiece 111 by applying a voltage.
 この構成により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 With this configuration, it is possible to perform highly precise laser processing with very small deflection even with a sheet-like workpiece 111 having a very small thickness.
 また、上面吸着装置131、132が、窒化膜処理をしたステンレスで形成され、少なくとも被加工物111の表面に接する面が研磨されている構成としてもよい。 In addition, the upper surface adsorption devices 131 and 132 may be formed of nitride film-treated stainless steel, and at least the surface in contact with the surface of the workpiece 111 may be polished.
 この構成により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 With this configuration, it is possible to perform highly precise laser processing with very small deflection even with a sheet-like workpiece 111 having a very small thickness.
 また、本実施の形態においては可動載置部121を6つ設置した図を用いて説明を行ったが、可動載置部121の数はレーザ加工装置100の大きさ等の設計要件で決定すればよく、この例に限定されるものではない。 Further, although the present embodiment is described using a diagram in which six movable mounting portions 121 are installed, the number of movable mounting portions 121 may be determined by design requirements such as the size of the laser processing apparatus 100. However, the present invention is not limited to this example.
 (実施の形態2)
 次に、本発明のレーザ加工装置100を用いた加工方法の異なる一例を説明する。図1、図2、及び、図3に示すレーザ加工装置100の構成は上述の実施の形態1と同じである。同様に、上部吸塵装置130には、1対の上面吸着装置131、132と、それぞれの上面吸着装置131、132を上下させる上面吸着装置昇降シリンダ133が取り付けられている。本実施の形態2では上面吸着装置昇降シリンダ133にはエアシリンダを用いて個々の上面吸着装置131、132を独立に上下させることができるように構成している。
Second Embodiment
Next, another example of the processing method using the laser processing apparatus 100 of the present invention will be described. The configuration of the laser processing apparatus 100 shown in FIGS. 1, 2 and 3 is the same as that of the first embodiment described above. Similarly, the upper dust collecting device 130 is provided with a pair of upper surface suction devices 131 and 132 and a top suction device elevating cylinder 133 for moving the upper surface suction devices 131 and 132 up and down. In the second embodiment, the upper surface suction device lifting cylinder 133 is configured to be able to move the upper surface suction devices 131 and 132 independently up and down by using an air cylinder.
 図8A、図8B、図9Aから図9Cは、本発明の実施の形態2に係る被加工物111の加工エリアの設定の一例を示す配置図である。図9A、図9B、図9Cは、本発明の実施の形態2の一例に係る上面吸着装置の異なる昇降状態を示す側面図である。 8A, 8B and 9A to 9C are layout diagrams showing an example of setting of a processing area of the workpiece 111 according to the second embodiment of the present invention. FIG. 9A, FIG. 9B, and FIG. 9C are side views showing different lifting and lowering states of the top adsorption device according to one example of the second embodiment of the present invention.
 図8A、図8Bは、被加工物111の加工エリアの割り振りの一例を示し、加工の順に1、2、・・・、48の番号をふっている。Y方向に6列に割り振っているが、これは可動載置部121の分割本数に対応するものである。なお、この6列や48という加工エリア数は、本実施の形態2において説明の便宜上設定したもので、実際の加工においてこの数に限定されるものではない。 FIGS. 8A and 8B show an example of allocation of the processing area of the workpiece 111, in which the numbers 1, 2,..., 48 are assigned in the order of processing. Although allocated in six rows in the Y direction, this corresponds to the number of divisions of the movable mounting portion 121. The number of processing areas in the six rows and 48 is set for the convenience of description in the second embodiment, and is not limited to this number in actual processing.
 以上のように構成されたレーザ加工装置100の動作について説明する。 The operation of the laser processing apparatus 100 configured as described above will be described.
 被加工物111を装置に搭載し、被加工物111を吸着保持し、加工テーブル115を移動する。第1の加工エリアの下面にある可動載置部121のみ、当該可動載置部121に設けられた載置部吸着孔122の真空引きをブローに切り換え、当該部位の被加工物111下面の吸着保持を止め、当該可動載置部121を下降するまでの動作は上述の実施の形態1と同じである。 The workpiece 111 is mounted on the apparatus, and the workpiece 111 is adsorbed and held, and the processing table 115 is moved. Only for the movable mounting portion 121 on the lower surface of the first processing area, the vacuum suction of the mounting portion suction hole 122 provided on the movable mounting portion 121 is switched to blow, and the suction of the lower surface of the workpiece 111 at the corresponding portion The operation of stopping the holding and lowering the movable mounting portion 121 is the same as that of the first embodiment described above.
 異なる点は、以上の動作が完了し、加工ヘッド部135と上部吸塵装置130の配置された位置に被加工物111の第1の加工エリアが到着したのち、上面吸着装置を下降させる場合に、第2の加工エリア側に設置している上面吸着装置132のみを下降させ、被加工物111の表面に密着させるところにある。図9Aにその上面吸着装置132のみ被加工物111の表面に密着させる状態を示している。これは、加工の進行方向144側の上面吸着装置132のみを被加工物111に密着させることに相当する。 The difference is that when the above operation is completed and the first processing area of the workpiece 111 arrives at the position where the processing head portion 135 and the upper dust collecting device 130 are disposed, the upper surface suction device is lowered. Only the upper surface suction device 132 installed on the second processing area side is lowered to be in close contact with the surface of the workpiece 111. FIG. 9A shows a state in which only the upper surface suction device 132 is in close contact with the surface of the workpiece 111. This corresponds to bringing only the upper surface suction device 132 on the side of the processing travel direction 144 into close contact with the workpiece 111.
 上面吸着装置132が図9Aに示すごとく下降した状態になったら、被加工物111の上面の吸着を開始する。吸着に関しては、実施の形態1と同じくエアチューブを介して真空引きによって行ってもよいし、静電チャックを用いで静電力によって吸着しても良い。 When the upper surface adsorption device 132 is lowered as shown in FIG. 9A, adsorption of the upper surface of the workpiece 111 is started. The suction may be performed by vacuum suction via an air tube as in the first embodiment, or may be held by electrostatic force using an electrostatic chuck.
 実施の形態1と同じく、上面吸着装置132が加工エリア近傍で被加工物111の上面を吸着することで、当該加工エリアに可動載置部121不在であっても被加工物111の変形を防止することができる。 As in the first embodiment, the upper surface adsorption device 132 adsorbs the upper surface of the workpiece 111 in the vicinity of the processing area, thereby preventing deformation of the workpiece 111 even in the absence of the movable mounting portion 121 in the processing area. can do.
 以降、第1の加工エリアの穴加工については実施の形態1と同じである。異なる点は、第1の加工エリア内の全ての穴加工が完了しても、上面吸着装置132による被加工物111の吸着保持を止めず、上面吸着装置132を下降させたままにしておくところにある。 Thereafter, the hole processing of the first processing area is the same as that of the first embodiment. A different point is that even if all holes in the first processing area are completed, the adsorption holding of the workpiece 111 by the upper surface adsorption device 132 is not stopped and the upper surface adsorption device 132 is kept lowered. It is in.
 次に第2の加工エリアに移動するために、加工テーブル115を本実施の形態ではY方向に移動させる。第2の加工エリアに位置決めされた後、直ちにレーザ穴加工を行う。第2の加工エリア内の全ての穴加工が完了すると、上面吸着装置132を下降させたまま第3の加工エリアに移動する。以上のようにして、ひとつの可動載置部121が下降しているエリアをすべてレーザ加工し終わるまで繰り返す。本実施の形態では、第8の加工エリアが該当する。 Next, in order to move to the second processing area, the processing table 115 is moved in the Y direction in the present embodiment. Immediately after positioning in the second processing area, laser drilling is performed. When all the holes in the second processing area are completed, the upper surface suction device 132 is moved to the third processing area while being lowered. As described above, the process is repeated until all the area in which one movable mounting portion 121 is lowered is subjected to the laser processing. In the present embodiment, the eighth processing area corresponds.
 第8の加工エリアすべてのレーザ加工をし終わったら、上面吸着装置132の被加工物111の吸着保持を止める。その後、上面吸着装置132上昇させ、図9Bに示す状態に戻す。 When the laser processing of all the eighth processing areas is completed, the adsorption holding of the workpiece 111 of the upper surface suction device 132 is stopped. Thereafter, the upper surface suction device 132 is raised to return to the state shown in FIG. 9B.
 上面吸着装置131、132が図9Bに示す上昇した状態になったら、以下の動作を開始する。まず、載置部120を次の加工エリアに移動すべく、加工テーブル115をX方向に移動開始する。すでに下降していた可動載置部121のブロー止めながら、当該可動載置部121を上昇して、上昇が完了したら当該可動載置部121に設けた載置部吸着孔122を真空引きして、被加工物111を再び吸着保持する。次の加工エリアに対応する位置の可動載置部121に設けた載置部吸着孔122の真空引きをブローに切り換える。当該箇所の被加工物111下面の保持がされなくなったら、当該箇所の可動載置部121を下降する。これらの動作を並行して行う。 When the top adsorption devices 131 and 132 are in the raised state shown in FIG. 9B, the following operation is started. First, movement of the processing table 115 in the X direction is started to move the mounting unit 120 to the next processing area. While stopping the blowout of the movable mounting portion 121 which has already been lowered, the movable mounting portion 121 is lifted, and when the lifting is completed, the mounting portion suction hole 122 provided in the movable mounting portion 121 is evacuated. , Adsorb and hold the workpiece 111 again. The evacuation of the mounting portion suction hole 122 provided in the movable mounting portion 121 at the position corresponding to the next processing area is switched to blow. When holding of the lower surface of the workpiece 111 at the portion is not performed, the movable mounting portion 121 at the portion is lowered. Perform these operations in parallel.
 そして、被加工物111が第9の加工エリアに到着したのち、次は上面吸着装置131のみを下降させ、被加工物111の表面に密着させ、被加工物111の上面の吸着を開始する。この状態を図9Cに示す。第1の加工エリアの場合と下降させる上面吸着装置131は異なるが、加工の進行方向144側の上面吸着装置131のみを被加工物に密着させる点では一致する。 Then, after the workpiece 111 arrives at the ninth processing area, next, only the upper surface adsorption device 131 is lowered to be in close contact with the surface of the workpiece 111 and adsorption of the upper surface of the workpiece 111 is started. This state is shown in FIG. 9C. Although the case of the first processing area is different from the upper surface adsorption device 131 to be lowered, they coincide in that only the upper surface adsorption device 131 on the processing advancing direction 144 side is brought into close contact with the workpiece.
 ひとつの可動載置部121が下降している加工エリア、本図においては第9の加工エリアから第16の加工エリアまでを全てレーザ加工し終わるまで上面吸着装置131を下降させた状態でレーザ加工を繰り返す。 Laser processing in a state in which the upper surface suction device 131 is lowered until all the laser processing from the processing area in which one movable mounting portion 121 is lowered, from the 9th processing area to the 16th processing area in FIG. repeat.
 次に、第17の加工エリアに移動してからは、第1の加工エリアの時と同じ動作を行う。以上の動作を繰り返し、被加工物111の所定の加工エリア全ての加工を行う。所定の加工エリアの全ての加工が完了したら、上面吸着装置131、132による被加工物111の吸着保持を止める。その後、上面吸着装置131、132ともに上昇させた状態に戻す。 Next, after moving to the seventeenth processing area, the same operation as in the first processing area is performed. The above operation is repeated to process the entire predetermined processing area of the workpiece 111. When all the processing in the predetermined processing area is completed, the adsorption holding of the workpiece 111 by the upper surface suction devices 131 and 132 is stopped. After that, both the top adsorption devices 131 and 132 are returned to the raised state.
 以降、加工テーブル115の移動、加工ヘッド部135の原点復帰、載置部120の被加工物111の保持の停止、載置部120から被加工物111を取出しまで、実施の形態1と同じ動作である。 Thereafter, the same operations as in the first embodiment are performed until the movement of the processing table 115, the return of the origin of the processing head unit 135, the stopping of the holding of the workpiece 111 by the placement unit 120, and the removal of the workpiece 111 from the placement unit 120. It is.
 すなわち、本発明のレーザ加工方法は、上記記載のレーザ加工装置100を用いて被加工物111を加工するレーザ加工方法であって、被加工物111の加工エリアを加工テーブル115で移動する場合に、上面吸着装置131、132を昇降させる工程を有する方法である。 That is, the laser processing method of the present invention is a laser processing method for processing the workpiece 111 using the above-described laser processing apparatus 100, and the processing area of the workpiece 111 is moved by the processing table 115. And raising and lowering the upper surface adsorption devices 131 and 132.
 この方法により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 According to this method, it is possible to perform high-precision laser processing with very small deflection even with a very thin sheet-like workpiece 111 having a small thickness.
 また、本発明のレーザ加工方法は、上記記載のレーザ加工装置100を用いて被加工物111を加工するレーザ加工方法であって、被加工物111の加工エリアを加工テーブル115で移動する場合を考える。この場合に、複数の可動載置部121のうちの1つが下降している加工エリアをすべてレーザ加工し終わるまで、少なくとも加工エリアの進行方向144に配置された上面吸着装置131、132を下降させた状態でレーザ加工を行うレーザ加工方法である。 Further, the laser processing method of the present invention is a laser processing method for processing the workpiece 111 using the above-described laser processing apparatus 100, and the case where the processing area of the workpiece 111 is moved by the processing table 115 Think. In this case, the upper surface suction devices 131 and 132 disposed at least in the advancing direction 144 of the processing area are lowered until all the processing area in which one of the plurality of movable mounting portions 121 is lowered has been laser processed. It is a laser processing method of performing laser processing in a fixed state.
 この方法により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 According to this method, it is possible to perform high-precision laser processing with very small deflection even with a very thin sheet-like workpiece 111 having a small thickness.
 また、本発明のレーザ加工方法は、上記記載のレーザ加工装置100を用いて被加工物111を加工するレーザ加工方法であって、被加工物111の加工エリアを加工テーブルで移動する場合を考える。この場合に、複数の可動載置部121のうちの1つが下降している加工エリアの1つ手前の加工エリアまでをすべてレーザ加工し終わるまで、少なくとも加工エリアの進行方向144に配置された上面吸着装置131、132を下降させた状態でレーザ加工を行う。そして、最後にレーザ加工を行う加工エリアは、上面吸着装置131、132を上昇させた状態でレーザ加工を行うレーザ加工方法である。 The laser processing method of the present invention is a laser processing method for processing the workpiece 111 using the above-described laser processing apparatus 100, and considers a case where the processing area of the workpiece 111 is moved by the processing table . In this case, the upper surface arranged at least in the advancing direction 144 of the processing area until all the laser processing is performed up to the processing area one before the processing area where one of the plurality of movable mounting parts 121 is descending The laser processing is performed in a state where the suction devices 131 and 132 are lowered. And the processing area which performs a laser processing at last is a laser processing method which performs a laser processing in the state which raised the upper surface adsorption | suction apparatus 131,132.
 この方法により、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高いレーザ加工を行うことができる。 According to this method, it is possible to perform high-precision laser processing with very small deflection even with a very thin sheet-like workpiece 111 having a small thickness.
 以上のように、本実施の形態にかかるレーザ加工装置100およびレーザ加工方法によれば、貫通したレーザ102による損傷を防止しながら、可動載置部121が下降している加工エリア近傍を上面吸着装置131または132のどちらか一方が上方に保持する。これにより、厚さの非常に薄いシート状の被加工物111であっても、たわみも非常に少ない精度の高い加工が行えるものである。 As described above, according to the laser processing apparatus 100 and the laser processing method according to the present embodiment, the upper surface suction is performed in the vicinity of the processing area where the movable mounting portion 121 is lowered while preventing damage by the penetrating laser 102. Either one of the devices 131 or 132 is held upwards. As a result, even with a sheet-like workpiece 111 having a very small thickness, high-precision processing with very low deflection can be performed.
 さらには、上面吸着装置131、132の昇降という動作の回数が非常に少なくできるので、加工時間の短縮を図ることができる。 Furthermore, since the number of operations for raising and lowering the upper surface suction devices 131 and 132 can be extremely reduced, the processing time can be shortened.
 なお、本実施の形態において上面吸着装置131、132の一方を下降させ被加工物111を吸着したまま加工テーブル115を移動することで加工エリアを移動する。この時に、下降させる上面吸着装置131、132は加工エリアの進行方向144の上面吸着装置131、132である。したがって、上面吸着装置131、132が被加工物111の表面を擦ることになっても、そこはまだ未加工の加工エリアであるので、被加工物111の表面にダメージを与えることはない。 In the present embodiment, one of the upper surface suction devices 131 and 132 is lowered to move the processing table 115 by moving the processing table 115 while holding the workpiece 111, thereby moving the processing area. At this time, the upper surface suction devices 131 and 132 to be lowered are the top surface suction devices 131 and 132 in the traveling direction 144 of the processing area. Therefore, even if the upper surface suction devices 131 and 132 rub the surface of the workpiece 111, they do not damage the surface of the workpiece 111 because they are still unprocessed processing areas.
 また、かかるレーザ加工方法を実施する場合に、上面吸着装置131、132の材質と表面処理を、被加工物111の表面を擦ることに適切なものにするとよい。その一例をあげると、基材としてステンレスを用い、バフ研磨で表面粗さを小さくした後、窒化膜処理を行う。さらに、被加工物111の表面に触れる面をバフ研磨し、鏡面仕上げをする。このようにすることで、被加工物111の表面を擦る面が、固くて滑りやすく、かつ、摩耗を生じないようにすることができる。 Moreover, when implementing this laser processing method, it is good to make the material and surface treatment of the upper surface adsorption | suction apparatuses 131 and 132 suitable for rubbing the surface of the to-be-processed object 111. FIG. As one example, stainless steel is used as a base material, and after reducing the surface roughness by buffing, a nitride film treatment is performed. Furthermore, the surface in contact with the surface of the workpiece 111 is buffed to mirror finish. By doing so, the surface rubbing the surface of the workpiece 111 can be made hard and slippery and not cause wear.
 なお、本実施の形態において、進行方向144側の上面吸着装置131、132が下降した状態でひとつの可動載置部121が下降している加工エリアをすべてレーザ加工し終わるまで繰り返す例を示した。しかしながら、1つ前の加工エリアのレーザ加工が終了したら、下降している上面吸着装置131、132の被加工物111の吸着保持を止める。その後、下降している上面吸着装置131、132を上昇させてから次の加工エリアに移動することで被加工物111が上面吸着装置131、132と外周載置部123との間に挟まれて、変形したり、傷がついたりすることを防止できる。この時、外周載置部123が被加工物111を保持するため、上面吸着装置131、132が上昇していても面精度を確保することができる。 In the present embodiment, the example is repeated until all the processing areas in which one movable mounting portion 121 is lowered are completely laser-processed while the upper surface suction devices 131 and 132 on the side of the advancing direction 144 are lowered. . However, when the laser processing of the previous processing area is completed, the adsorption holding of the workpiece 111 of the descending upper surface suction devices 131 and 132 is stopped. Thereafter, the workpiece 111 is held between the upper surface adsorbing devices 131 and 132 and the outer peripheral placement portion 123 by raising the lowered upper surface adsorbing devices 131 and 132 and moving to the next processing area. Can be prevented from being deformed or scratched. At this time, since the outer circumferential placement portion 123 holds the workpiece 111, surface accuracy can be ensured even if the upper surface suction devices 131 and 132 are raised.
 なお、実施の形態1で説明したレーザ加工方法か、実施の形態2で説明したレーザ加工方法かのどちらを選択するかは、被加工物の材質や厚みによって変更しても良い。本発明のレーザ加工装置100では、2つの上面吸着装置131、132を独立して昇降の制御が可能に構成しているので、レーザ加工方法の選択は可能である。 Note that which of the laser processing method described in the first embodiment and the laser processing method described in the second embodiment may be selected may be changed depending on the material and thickness of the workpiece. In the laser processing apparatus 100 of the present invention, since the two upper surface suction devices 131 and 132 can be independently controlled to move up and down, it is possible to select a laser processing method.
 また、上面吸着装置を1対ではなく1つのみ設けたとしても、加工エリアの加工順を変更し、常に進行方向の上面吸着装置を下降させるようにすればよい。 Further, even if only one upper surface suction device is provided instead of one pair, the processing order of the processing area may be changed to always lower the upper surface suction device in the traveling direction.
 本発明に係るレーザ加工装置は、レーザによる穴加工において載置部の損傷を防止しつつ被加工物の平面度を保持して高い加工精度を実現できるものであり、スルーホール加工を行うレーザ加工装置等において有用である。 The laser processing apparatus according to the present invention can realize high processing accuracy by maintaining the flatness of the workpiece while preventing damage to the placement portion in hole processing by laser, and performs laser processing to perform through-hole processing It is useful in an apparatus etc.
 100  レーザ加工装置
 101  レーザ発振器
 102  レーザ
 103  ミラー
 104  コリメータレンズ
 105  マスク
 106  アイリス
 107  fθレンズ
 108  制御コントローラ
 109  ガルバノXミラー
 110  ガルバノYミラー
 111  被加工物
 112  下部吸塵装置
 113  空気流
 115  加工テーブル
 116  Yテーブル
 117  Y軸移動モータ
 118  Xテーブル
 119  X軸移動モータ
 120  載置部
 121  可動載置部
 122  載置部吸着孔
 123  外周載置部
 124  外周吸着孔
 125  可動載置部昇降シリンダ
 130  上部吸塵装置
 131,132  上面吸着装置
 133  上面吸着装置昇降シリンダ
 135  加工ヘッド部
 136  Zスライダ
 137  Z軸移動モータ
 140  本体フレーム
 141  エアチューブ
 142  上面吸着孔
 143  エアチューブ
 144  進行方向
 150  駆動部
Reference Signs List 100 laser processing apparatus 101 laser oscillator 102 laser 103 mirror 104 collimator lens 105 mask 106 iris 107 fθ lens 108 controller 109 galvano X mirror 110 galvano Y mirror 111 workpiece 112 lower dust collector 113 air flow 115 processing table 116 Y table 117 Y-axis movement motor 118 X table 119 X-axis movement motor 120 placement unit 121 movable placement unit 122 placement unit suction hole 123 outer circumference placement unit 124 outer circumference adsorption hole 125 movable placement unit elevating cylinder 130 upper dust collecting device 131, 132 Top surface suction device 133 Top surface suction device elevating cylinder 135 Processing head part 136 Z slider 137 Z axis movement motor 140 Body frame 141 Air tube 14 Top suction hole 143 air tube 144 traveling direction 150 driver

Claims (9)

  1. 被加工物をレーザ加工する加工ヘッド部と、
    上下に昇降する分割された可動載置部を複数有して前記被加工物を保持する載置部と、
    前記載置部をX方向およびY方向に駆動する加工テーブルと、
    前記被加工物の上方に位置し前記被加工物の上面を吸着する上面吸着装置と、
    前記上面吸着装置を上下に昇降駆動する駆動部と、を
    備えたレーザ加工装置。
    A processing head unit for laser processing a workpiece;
    A mounting unit that holds a plurality of divided movable mounting units that move up and down and holds the workpiece;
    A processing table for driving the placement unit in the X direction and the Y direction;
    An upper surface adsorption device located above the workpiece and adsorbing the upper surface of the workpiece;
    And a driving unit configured to vertically drive the upper surface suction device up and down.
  2. 前記上面吸着装置を一対設け、それぞれを独立して上下に昇降駆動するように構成した請求項1に記載のレーザ加工装置。 The laser processing apparatus according to claim 1, wherein a pair of the upper surface suction devices is provided and each is driven to move up and down independently.
  3. 前記上面吸着装置の長手方向は、前記可動載置部の長手方向と垂直となるように設置し、前記上面吸着装置の長手方向の大きさを前記可動載置部の幅に対して大きく設定した請求項1に記載のレーザ加工装置。 The longitudinal direction of the upper surface suction device is set to be perpendicular to the longitudinal direction of the movable mounting portion, and the size in the longitudinal direction of the upper surface suction device is set larger than the width of the movable mounting portion The laser processing apparatus according to claim 1.
  4. 前記上面吸着装置が、電圧を印加することにより前記被加工物を吸着する静電チャックで形成されている請求項1から3のいずれか1項に記載のレーザ加工装置。 The laser processing apparatus according to any one of claims 1 to 3, wherein the upper surface adsorption device is formed of an electrostatic chuck that adsorbs the workpiece by applying a voltage.
  5. 前記上面吸着装置の前記被加工物の表面に接する面に吸着孔を設け、吸引する空気圧によって前記被加工物を吸着する請求項1から3のいずれか1項に記載のレーザ加工装置。 The laser processing apparatus according to any one of claims 1 to 3, wherein an adsorption hole is provided on a surface of the upper surface adsorption device in contact with the surface of the workpiece, and the workpiece is adsorbed by the suctioned air pressure.
  6. 前記上面吸着装置が、窒化膜処理をしたステンレスで形成され、少なくとも前記被加工物の表面に接する面が研磨されている請求項5に記載のレーザ加工装置。 The laser processing apparatus according to claim 5, wherein the upper surface adsorption device is formed of a nitride film-treated stainless steel, and at least a surface in contact with the surface of the workpiece is polished.
  7. 請求項1から6のいずれか1項に記載のレーザ加工装置を用いて被加工物を加工するレーザ加工方法であって、
    前記被加工物の加工エリアを加工テーブルで移動する場合に、前記上面吸着装置を昇降させる工程を有するレーザ加工方法。
    It is a laser processing method which processes a to-be-processed object using the laser processing apparatus of any one of Claim 1 to 6, Comprising:
    The laser processing method which has the process of raising / lowering the said upper surface adsorption | suction apparatus, when moving the processing area of the said to-be-processed object by a processing table.
  8. 請求項1から6のいずれか1項に記載のレーザ加工装置を用いて被加工物を加工するレーザ加工方法であって、
    前記被加工物の加工エリアを加工テーブルで移動する場合に、複数の可動載置部のうちの1つが下降している加工エリアをすべてレーザ加工し終わるまで、少なくとも加工エリアの進行方向に配置された上面吸着装置を下降させた状態でレーザ加工を行うレーザ加工方法。
    It is a laser processing method which processes a to-be-processed object using the laser processing apparatus of any one of Claim 1 to 6, Comprising:
    When moving the processing area of the workpiece with the processing table, the processing area is arranged at least in the advancing direction of the processing area until all of the processing area in which one of the plurality of movable mounting parts descends is completely laser processed. The laser processing method which performs laser processing in the state which lowered the upper surface adsorption device.
  9. 請求項1から6のいずれか1項に記載のレーザ加工装置を用いて被加工物を加工するレーザ加工方法であって、
    前記被加工物の加工エリアを前記加工テーブルで移動する場合に、複数の可動載置部のうちの1つが下降している加工エリアの1つ手前の加工エリアまでをすべてレーザ加工し終わるまで、少なくとも加工エリアの進行方向に配置された上面吸着装置を下降させた状態でレーザ加工を行い、最後にレーザ加工を行う加工エリアは、前記上面吸着装置を上昇させた状態でレーザ加工を行うレーザ加工方法。
    It is a laser processing method which processes a to-be-processed object using the laser processing apparatus of any one of Claim 1 to 6, Comprising:
    When moving the processing area of the workpiece with the processing table, the laser processing is performed up to the processing area one before the processing area in which one of the plurality of movable mounting parts is lowered, Laser processing is performed in a state in which the upper surface suction device arranged at least in the advancing direction of the processing area is lowered, and the laser processing is performed in a state in which the upper surface suction device is raised. Method.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8815747B2 (en) 2010-06-03 2014-08-26 Micron Technology, Inc. Methods of forming patterns on substrates

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104096979B (en) * 2014-06-20 2016-01-20 西安交通大学 A kind of laser processing technology auxiliary based on electrostatic field and processing unit (plant) thereof
DE102017213364A1 (en) * 2017-08-02 2019-02-07 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Function unit for a machining head, machining head and functional element

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63224893A (en) * 1987-03-16 1988-09-19 Yamazaki Mazak Corp Laser beam machine
JPS6427792A (en) * 1987-07-22 1989-01-30 Fujitsu Ltd Laser beam machining method and machine
JPH02160192A (en) * 1988-12-12 1990-06-20 Amada Co Ltd Hot cutting and working device
JPH11254166A (en) * 1997-12-25 1999-09-21 Matsushita Electric Ind Co Ltd Machining device and its method
JP2005019529A (en) * 2003-06-24 2005-01-20 Sumitomo Heavy Ind Ltd System of removing static electricity from suction table and laser processing machine
JP2007160375A (en) * 2005-12-15 2007-06-28 Nippei Toyama Corp Workpiece transporting apparatus for laser beam machine
WO2008084642A1 (en) * 2006-12-22 2008-07-17 Panasonic Corporation Laser processing apparatus and laser processing method using the same
JP2008212941A (en) * 2007-02-28 2008-09-18 Sumitomo Heavy Ind Ltd Laser beam machining apparatus and its control method
JP2009166930A (en) * 2008-01-15 2009-07-30 Murata Mach Ltd Plate material conveying device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US303902A (en) * 1884-08-19 Harrow
US6090330A (en) * 1997-02-06 2000-07-18 Matsushita Electric Industrial Co., Ltd. Laser processing method
GB2332637B (en) * 1997-12-25 2000-03-08 Matsushita Electric Ind Co Ltd Apparatus and method for processing
JP4947146B2 (en) * 2007-06-28 2012-06-06 パナソニック株式会社 Laser processing equipment
WO2009084489A1 (en) * 2007-12-28 2009-07-09 Mitsuboshi Diamond Industrial Co., Ltd. Laser working apparatus, and laser working method
JP2010162586A (en) * 2009-01-19 2010-07-29 Toray Eng Co Ltd Laser beam machining method and laser beam machining apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63224893A (en) * 1987-03-16 1988-09-19 Yamazaki Mazak Corp Laser beam machine
JPS6427792A (en) * 1987-07-22 1989-01-30 Fujitsu Ltd Laser beam machining method and machine
JPH02160192A (en) * 1988-12-12 1990-06-20 Amada Co Ltd Hot cutting and working device
JPH11254166A (en) * 1997-12-25 1999-09-21 Matsushita Electric Ind Co Ltd Machining device and its method
JP2005019529A (en) * 2003-06-24 2005-01-20 Sumitomo Heavy Ind Ltd System of removing static electricity from suction table and laser processing machine
JP2007160375A (en) * 2005-12-15 2007-06-28 Nippei Toyama Corp Workpiece transporting apparatus for laser beam machine
WO2008084642A1 (en) * 2006-12-22 2008-07-17 Panasonic Corporation Laser processing apparatus and laser processing method using the same
JP2008212941A (en) * 2007-02-28 2008-09-18 Sumitomo Heavy Ind Ltd Laser beam machining apparatus and its control method
JP2009166930A (en) * 2008-01-15 2009-07-30 Murata Mach Ltd Plate material conveying device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8815747B2 (en) 2010-06-03 2014-08-26 Micron Technology, Inc. Methods of forming patterns on substrates

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JPWO2012035721A1 (en) 2014-01-20
TW201223678A (en) 2012-06-16

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