WO2023013681A1 - Laser processing machine - Google Patents

Laser processing machine Download PDF

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Publication number
WO2023013681A1
WO2023013681A1 PCT/JP2022/029817 JP2022029817W WO2023013681A1 WO 2023013681 A1 WO2023013681 A1 WO 2023013681A1 JP 2022029817 W JP2022029817 W JP 2022029817W WO 2023013681 A1 WO2023013681 A1 WO 2023013681A1
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WO
WIPO (PCT)
Prior art keywords
pallet
laser processing
processing machine
area
guard plate
Prior art date
Application number
PCT/JP2022/029817
Other languages
French (fr)
Japanese (ja)
Inventor
剛 岩松
Original Assignee
株式会社アマダ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社アマダ filed Critical 株式会社アマダ
Priority to CN202280054646.0A priority Critical patent/CN117858778A/en
Publication of WO2023013681A1 publication Critical patent/WO2023013681A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece

Definitions

  • This disclosure relates to a laser processing machine.
  • Patent Document 1 describes a clamping device provided with a first clamp and a second clamp that clamp a workpiece on a work table and move in the same direction in a laser processing machine. According to this clamping device, the laser processing area of the workpiece on the work table can be easily changed by moving the first clamp and the second clamp.
  • a laser processing machine is generally equipped with a pallet on which, for example, a so-called 4 ⁇ 8 (1219 mm ⁇ 2438 mm) standard-sized sheet metal can be placed, and a laser processing head is used to move the entire 4 ⁇ 8 standard-sized sheet metal placed on the pallet. Move the area two-dimensionally so that it can be processed.
  • the laser processing machine is also frequently used for processing a standard sheet metal of 4 ⁇ 4 (1219 mm ⁇ 1219 mm), which is half the size of 4 ⁇ 8, for example.
  • the laser processing machine mainly processes 4 ⁇ 4 standard-sized sheet metal, and the frequency of processing 4 ⁇ 8 standard-sized sheet metal is low. Therefore, users who mainly process 4 ⁇ 4 standard-sized sheet metal are demanding a space-saving laser processing machine.
  • a pallet having a size corresponding to a 4x4 standard-sized sheet metal is provided as a work table, and a 4x4 placed on the pallet by the clamping device.
  • a laser processing machine that grips eight standard-sized sheet metal and moves its position to substantially expand the processing area is also contemplated.
  • the sheet metal is thin, there is a risk that the portion of the sheet metal that protrudes from the pallet will be greatly bent due to its own weight, resulting in problems in processing. Therefore, it is desired that the laser processing machine is space-saving and capable of processing large-sized sheet metal.
  • One aspect of this embodiment has the following configuration. a base portion installed inside a reference installation area of an installation surface; a base portion disposed on the upper portion of the base portion; a pallet that moves in a horizontal first direction between a second position and a pallet movably provided inside an upper region of the base, the pallet moving between the first position and the second position; and a laser processing head that emits a laser beam toward the sheet metal placed on the pallet.
  • the workpiece placed on the pallet both when the pallet is at the first position and at the second position moved from the first position sheet metal can be laser processed.
  • the sheet metal to be processed can be laser-processed in a wider area than the processing area, and the sheet metal larger than the processing area can be processed, saving space.
  • FIG. 1 is a perspective view showing a normal state of a laser processing machine 91, which is an example of the laser processing machine according to this embodiment.
  • FIG. 2 is a perspective view of the pallet 7 of the laser processing machine 91 in the extended position.
  • FIG. 3 is a schematic front view showing the moving state of the pallet 7 of the laser processing machine 91.
  • FIG. 4A is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows the state where the pallet 7 is at the reference position.
  • FIG. 4B is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows a state in which the pallet 7 is in the extended position.
  • FIG. 4A is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows a state in which the pallet 7 is in the extended position.
  • FIG. 4A is a schematic diagram for explaining the position of the pallet 7 of
  • FIG. 5A is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is not moved.
  • FIG. 5B is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is moved.
  • FIG. 5C is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state of overload.
  • FIG. 6 is a cross-sectional view showing the recovery box 11 provided in the laser processing machine 91.
  • FIG. 7A is a first diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is erected.
  • FIG. 7A is a first diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is erected.
  • FIG. 7A is a first diagram
  • FIG. 7B is a second diagram for explaining the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is laid down.
  • FIG. 8 is a block diagram showing the configuration of the laser processing machine 91. As shown in FIG.
  • FIG. 1 is a perspective view showing a normal state of a laser processing machine 91, which is an example of the laser processing machine according to this embodiment.
  • the directions of up, down, left, right, front and back are defined by the directions of the arrows shown in FIG. Moreover, let the left-right direction be a 1st direction.
  • the laser processing machine 91 has a base portion 1 installed inside a reference installation region RV1 on the installation surface FL, and is arranged on the upper portion of the base portion 1, a first position, and a projection region RV2 with respect to the installation surface FL.
  • a pallet 7 movable in a first horizontal direction between a second position projecting outside the reference installation area and a pallet 7 provided movably inside the upper area of the base 1, the pallet 7 being the first and a laser processing head 55 that emits a laser beam toward the sheet metal placed on the pallet 7 at either the position of 1 or the second position.
  • the laser processing machine 91 includes a pair of front and rear side frames 2 and 3 , a carriage section 5 , a control device 81 including a control section CT, a laser oscillator 82 and an input section 83 .
  • the input unit 83 is used by the operator to input instructions and operating conditions for the control of the control unit CT.
  • the base part 1 is assembled in a substantially rectangular parallelepiped shape and installed on the installation surface FL.
  • a box-shaped control device 81 connected to the base portion 1 is arranged on the right side of the base portion 1 .
  • the side frames 2 and 3 are arranged parallel to the front and rear edges of the base 1, respectively.
  • the carriage portion 5 includes a pair of front and rear struts 51 and 52 , a carriage body portion 53 , a laser processing head 55 and a pallet connecting portion 6 .
  • the struts 51 and 52 are supported by the side frames 2 and 3, respectively, so as to be movable in the left-right direction.
  • the carriage main body 53 is a beam-shaped member that connects the upper ends of the columns 51 and 52 in the front-rear direction.
  • the side frame 2 has a carriage driving portion 21 that moves the support 51 in the left-right direction.
  • the laser processing head 55 is supported by the carriage body 53 so as to be movable in the front-rear direction.
  • the carriage body portion 53 has a head driving portion 531 that moves the laser processing head 55 in the front-rear direction.
  • the pallet 7 has a plurality of plate-like workpiece supports 71 (also referred to as skids) extending in the front-rear direction with saw-toothed support portions on top. More specifically, the pallet 7 has a frame 70 , a workpiece support group 71 ⁇ /b>G consisting of a plurality of workpiece supports 71 , and a plurality of free ball bearings 72 .
  • the frame 70 is a flat frame-shaped member that has a length in the left-right direction that is substantially the same as the length in the left-right direction of the combination of the base 1 and the control device 81, and is rectangular when viewed from above. In FIG. 1, the right edge of the frame 70 enters the gap between the control device 81 and the laser oscillator 82 spaced above the control device 81 .
  • a plurality of workpiece supports 71 are arranged side by side on the upper portion of the frame 70 so as to extend in the front-rear direction and are spaced apart in the left-right direction.
  • a group of multiple workpiece supports 71 is referred to as a workpiece support group 71G.
  • the work piece support group 71G is provided in an area where the entire 4 ⁇ 8 (1219 mm ⁇ 2438 mm) standard-sized sheet metal can be placed.
  • the frame 70 has a plurality of free ball bearings 72 between the workpiece supports 71 that move up and down between lower and upper positions with respect to the height position of the upper end of the workpiece support 71 .
  • a plurality of free ball bearings 72 can be manually moved up and down synchronously by a link mechanism (not shown).
  • the plurality of free ball bearings 72 are not limited to being manually moved, but may be automatically and synchronously moved up and down by the bearing drive section 721 (see FIG. 3) under the control of the control section CT.
  • a front edge of the frame 70 is provided with a plurality of clamps (not shown) for gripping the sheet metal.
  • a plurality of clamps grip a sheet metal placed on a workpiece support group 71G or supported by a plurality of free ball bearings 72 under the control of the controller CT.
  • the laser oscillator 82 is, for example, a fiber laser oscillator, generates a laser beam and supplies it to the laser processing head 55 .
  • the laser processing head 55 emits the supplied laser beam toward the pallet 7 below as a laser beam on the optical axis PL.
  • FIG. 8 is a block diagram showing the configuration of the laser processing machine 91.
  • the operations of the carriage driving section 21, the head driving section 531, and the laser oscillator 82 are controlled by the control section CT.
  • the laser processing machine 91 moves the laser processing head 55 two-dimensionally in the front-rear direction and the left-right direction with respect to the sheet metal placed on the pallet 7 to obtain a desired processing path. laser processing can be performed.
  • the moving distance of the carriage part 5 in the left-right direction is the left half of the workpiece support group 71G or a distance slightly larger than the left half. This distance is at least equal to the length of one side of a standard sheet metal of 4 ⁇ 4 (1219 mm ⁇ 1219 mm) (corresponding to the distance Lx1 described later).
  • the laser processing machine 91 can perform laser processing on the entire area of the 4 ⁇ 4 standard-sized sheet metal placed on the pallet 7 .
  • FIGS. 2 to 4B the laser processing machine 91 is movable between the overhang position, which is the second position where the pallet 7 is moved leftward from the reference position by a predetermined distance.
  • FIG. 2 is a perspective view of the pallet 7 of the laser processing machine 91 in the extended position.
  • FIG. 3 is a schematic front view showing the moving state of the pallet 7 of the laser processing machine 91.
  • FIG. 4A is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows the state where the pallet 7 is at the reference position.
  • FIG. 4B is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows a state in which the pallet 7 is in the extended position.
  • the laser processing machine 91 has a linear guide 76 for linearly moving the pallet 7.
  • the linear guide 76 includes a long rail 73 and two sliders 74 and 75 that engage with the rail 73 and move along the rail 73 .
  • a pair of rails 73 are attached to the front edge and the rear edge of the lower surface of the frame 70 of the pallet 7 so as to extend in the horizontal direction.
  • the sliders 74 and 75 engaged with the rail 73 are attached to the left half area of the base 1 so as to be spaced apart in the left-right direction.
  • the pallet 7 can be horizontally moved to the left in the first direction from the reference position with respect to the base 1 as indicated by an arrow DR3.
  • the maximum leftward movement distance of the pallet 7 from the reference position is equal to or longer than one side of the 4 ⁇ 4 standard-sized sheet metal (corresponding to the distance L7 described later).
  • the laser processing machine 91 has improved processing accuracy in laser processing.
  • FIG. 2 shows a state in which the pallet 7 is in the extended position in the laser processing machine 91 .
  • the base 1 is installed within the reference installation area RV1.
  • An overhanging projection area RV2 which is a projection area of the overhanging portion of the pallet 7 onto the installation surface FL, overhangs from the reference installation area RV1.
  • the pallet 7 in the overhanging position has a portion corresponding to the overhang projection area RV2 protruding from the reference installation area RV1 directly facing the installation surface FL. It is designed to
  • the reference installation area RV1 is schematically shown in FIG. 3 as an area in which only the base portion 1 is installed. means the area necessary for
  • a first pallet sensor 31 and a second pallet sensor 32 are arranged on the surface of the inner surface of the side frame 3 facing the pallet 7 so as to be spaced apart in the left-right direction.
  • the first pallet sensor 31 and the second pallet sensor 32 are so-called proximity sensors.
  • both the first pallet sensor 31 and the second pallet sensor 32 are turned ON, and when the pallet 7 is at the extended position, both the first pallet sensor 31 and the second pallet sensor 32 are turned OFF.
  • the second pallet sensor 32 is OFF and the first pallet sensor 31 is ON.
  • a detection signal indicating ON/OFF of the first pallet sensor 31 and the second pallet sensor 32 is output to the controller CT (see FIG. 8).
  • the side frame 2 has a first pallet lock portion 22 and a second pallet lock portion 23 that prohibit movement and lock the position when the pallet 7 is at the reference position and the extended position.
  • the first pallet lock portion 22 and the second pallet lock portion 23 lock and unlock the pallet 7 with respect to the base portion 1, for example, by engagement of protrusions and recesses caused by the operation of solenoids.
  • the operations of the first pallet lock portion 22 and the second pallet lock portion 23 are controlled by the control portion CT (see FIG. 8).
  • a 4 ⁇ 8 standard-sized sheet metal W is positioned and placed as a work piece.
  • the laser processing machine 91 is such that when the pallet 7 is at the reference position, the right side portion of the pallet 7 enters between the laser oscillator 82 and the control device 81 (see FIG. 1) therebelow. there is
  • the carriage body 53 moves in the horizontal direction over a distance Lx1, as indicated by an arrow DR1.
  • the laser processing head 55 moves in the front-rear direction over a distance Ly1 with respect to the carriage main body 53 as indicated by an arrow DR2.
  • the laser processing machine 91 has a processable area (processing area) of the area AR1 of distance Lx1 ⁇ distance Ly1 indicated by hatching upward to the right, which roughly corresponds to the left half of the pallet 7 .
  • the laser processing machine 91 can move the pallet 7 leftward from the reference position by a maximum distance L7.
  • the distance L7 is shorter than the distance Lx1 by the distance La.
  • the workable area AR1 when the pallet 7 is at the reference position becomes an area ARW1 at the overhang position, and the area overlaps with the workable area AR1 at the overhang position by a distance La in the left-right direction. That is, even if the laser processing machine 91 is a space-saving device in which the processing area is set to a small area corresponding to a 4 ⁇ 4 standard-size sheet metal, processing can be performed by moving the pallet 7. By relatively expanding the area, it is possible to process a 4 ⁇ 8 standard-sized sheet metal.
  • the laser processing machine 91 moves together with the connection receiving portion 61 provided on the pallet 7 and the movement of the laser processing head 55 in the first direction, and is connected to the connection receiving portion 61 so as to be selectively in a connected state and a non-connected state.
  • a driving portion 62 is provided, and the pallet 7 is configured to move as the laser processing head 55 moves in the first direction by connecting the connecting driving portion 62 to the connecting receiving portion 61 .
  • FIG. 5A is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is not moved.
  • FIG. 5B is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is moved.
  • FIG. 5C is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state of overload.
  • the pallet connecting portion 6 is composed of a set of a connection receiving portion 61 and a connection driving portion 62 .
  • the connection receiving portion 61 is fixed to the frame 70 of the pallet 7 .
  • the connection receiving portion 61 has a pedestal 611 and a column portion 612 .
  • a receiving surface 613 which is the upper surface of the tip of the column portion 612, is formed as part of a cylindrical surface centered on a central axis CL61 extending in the front-rear direction.
  • the connection driving part 62 has a bracket 621 , a connection cylinder 622 , a moving post 624 and rollers 625 .
  • the bracket 621 is a plate-shaped member that is fixed to the carriage main body 53 and protrudes to the right.
  • the connecting cylinder 622 is fixed to the bracket 621, and moves vertically on a moving column 624 protruding downward from the lower end surface by its operation.
  • the operation of the connecting cylinder 622 is controlled by the controller CT (see FIGS. 1 and 2).
  • the roller 625 rotates around a longitudinally extending shaft member 626 provided at the lower end of the moving column 624 .
  • the radius of the outer peripheral surface of roller 625 is the same as or slightly smaller than the radius of receiving surface 613 .
  • the controller CT draws the moving column 624 of the connecting cylinder 622 upward, and the connecting receiving portion 61 and the connecting drive are engaged.
  • the part 62 is spaced apart. In this state, the carriage part 5 moves independently without interlocking with the pallet 7. - ⁇
  • the control unit CT (see FIGS. 1 and 2) connects Moving post 624 of cylinder 622 is pushed downward to bring roller 625 into contact with receiving surface 613 or into a recess in receiving surface 613 (see arrow DR4).
  • the carriage part 5 and the pallet 7 are connected via the pallet connecting part 6, and the pallet 7 moves together with the movement of the carriage part 5 in the horizontal direction.
  • control unit CT operates the carriage driving unit 21 to move the carriage unit 5 to the rightmost position.
  • the connection driving part 62 and the connection receiving part 61 can be connected.
  • the control part CT (see FIG. 1) operates the connection cylinder 622 to connect the connection driving part 62 to the connection receiving part 61.
  • the control unit CT activates the first lock cylinder 221 and the second lock cylinder 231 to unlock the pallet 7 so that the pallet 7 can be moved. It is operated to move the carriage part 5 to the leftmost position. Along with this movement, the pallet 7 integrated with the carriage portion 5 by the pallet connecting portion 6 also moves leftward, and the pallet 7 moves to the extended position.
  • the pallet connecting part 6 is automatically disconnected when overload occurs when the movement resistance of the pallet 7 exceeds a predetermined value.
  • the moving column 624 of the connecting drive part 62 is pushed downward by the pressure of the air supplied to operate the connecting cylinder 622 .
  • FIG. 5C shows a case where the pallet 7 does not move for some reason even if the carriage 5 moves rightward while the pallet connecting portion 6 is in the connected state.
  • the roller 625 rotates along the receiving surface 613 and pushes the moving column 624 upward against the air pressure. Roller 625 then rides over the raised end of receiving surface 613 as indicated by arrow DR5, and moving post 624 disengages from receiving surface 613. FIG. Thereby, the connection between the connection driving portion 62 and the connection receiving portion 61 is released.
  • one aspect of the present embodiment includes a base portion 1 (see FIG. 1) and a base portion 1 disposed on the top of the base portion 1 in a first position and a base portion, as shown in FIGS. 4A and 4B.
  • FIG. 6 is a cross-sectional view showing the recovery box 11 included in the laser processing machine 91.
  • FIG. FIG. 7A is a first diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is erected.
  • FIG. 7B is a second diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is laid down.
  • the base unit 1 of the laser processing machine 91 includes a recovery box 11 corresponding to the laser processing area AR1 by the laser processing head 55, and a guard plate 134 that closes the gap G between the pallet 7 and the recovery box 11. .
  • the laser processing machine 91 also includes a pallet guard plate 77 that closes the gap G when the pallet 7 is at the first position (reference position).
  • the guard plate 134 is configured to be inclined when the pallet 7 is at the first position (reference position), and stand up to close the gap G when the pallet 7 is at the second position (overhang position). ing.
  • a collection box 11 corresponding to the processing area is arranged on the base portion 1 of the laser processing machine 91 .
  • the recovery box 11 is a box for receiving dross, scraps, and the like that are generated during laser processing and dropped from the gap between the workpiece supports 71 , and is arranged below the pallet 7 .
  • the laser processing machine 91 is also equipped with a suction device (not shown) that sucks air.
  • the suction device sucks the air inside the collection box 11 and discharges it to the outside through a filter. Most of the scattered spatter caused by the laser processing is discharged to the outside through the recovery box 11 by air suction by the suction device.
  • the gap G between the pallet 7 and the collection box 11 is wide open, the particles will scatter from the space V11 inside the collection box 11 to the outside space through the gap G and adhere to the product, causing problems such as adhesion to the product. cause. Therefore, the laser processing machine 91 has a pallet guard plate 77 and a It has a spatter guard device 13 .
  • FIG. 7A is an enlarged view of the vicinity of the spatter guard device 13 in FIG. 6, and FIG. 7B is an enlarged view showing the same portion with the pallet 7 returned to the reference position.
  • the pallet 7 In FIG. 6 the pallet 7 is in the extended position. In this state, the gap G between the collection box 11 and the pallet 7 is substantially closed by the standing guard plate 134 of the spatter guard device 13 .
  • the pallet 7 has a guard supporter 78 extending downward at the right end in FIG. 7A.
  • the guard supporter 78 extends downward so as to overlap the standing guard plate 134 in the vertical direction.
  • the guard supporter 78 may be in contact with the erected guard plate 134 in the left-right direction, as shown in FIG. 7A, or may have a slight gap.
  • the guard supporter 78 is made of a metal plate material or a rubber plate material.
  • the spatter guard device 13 includes a guard cylinder 131, a rod 132, a fixing plate 133, a guard plate 134, a hinge 135 and a link plate 136.
  • the guard cylinder 131 is fixed to the upper portion of the shelf plate 12 arranged on the right side of the base portion 1 .
  • the guard cylinder 131 moves the rod 132 in and out (see arrow DR6) under the control of the controller CT (see FIG. 1).
  • One end of the link plate 136 is rotatably connected to the tip of the rod 132, and the other end of the link plate 136 is rotatably connected to the guard plate 134 (see arrow DR7). As shown in FIG.
  • the guard plate 134 is rotatable about the longitudinal axis with respect to the fixed plate 133 via the hinge 135 (see arrow DR9). With this configuration, as the guard cylinder 131 operates, the guard plate 134 pivots about the hinge 135 between the upright posture shown in FIG. 7A and the tilted posture shown in FIG. 7B.
  • the control unit CT (see FIG. 1) operates the guard cylinder 131 to bring the guard plate 134 into the standing posture when the pallet 7 is in the extended position.
  • the guard cylinder 131 is operated to make the angle between the guard plate 134 and the fixed plate 133 smaller than the upright posture.
  • the pallet guard plate 77 is attached to the bottom surface of the frame 70 of the pallet 7 . More specifically, the pallet guard plate 77 is attached in place of the guard plate 134 to close the gap G between the pallet 7 and the base 1 when the pallet 7 is at the reference position.
  • the controller CT uses the first pallet sensor 31 and the second pallet sensor to detect the erected posture and tilted posture of the guard plate 134 by operating the guard cylinder 131 (see FIGS. 7A and 7B). It is executed according to the position of the pallet 7 grasped by the detection information from 32.
  • the base 1 has a laser processing area AR1 (FIGS. 4A and 4B) in which the laser processing head 55 (see FIGS. 4A and 4B) can operate. 4B), the pallet guard plate 77 closing the gap G between the pallet 7 and the collection box 11 when the pallet 7 is at the first position, and the pallet 7 is positioned at the second position. and a guard plate 134 that closes the gap G when it is at the position of .
  • the laser processing machine 91 has a small possibility that the spatter generated by the laser processing scatters outside regardless of the position of the pallet 7, and the quality of the product is less likely to deteriorate.
  • the guard plate 134 is inclined when the pallet 7 is at the first position, and stands up to block the gap G when the pallet 7 is at the second position. Therefore, the guard plate 134 does not interfere with the movement of the pallet 7, and the gap G can be closed more widely when the pallet 7 is at the second position. As a result, the laser processing machine 91 has a smaller possibility that the spatter generated by the laser processing scatters outside regardless of the position of the pallet 7, and the quality of the product is less likely to deteriorate.
  • the gap G may be closed with the guard plate 134 regardless of whether the pallet 7 is in the first position or the second position.
  • the pallet guard plate 77 is not required.
  • the guard supporter 78 is provided at the pallet end shown in FIG.
  • the guard plate 134 is in an inclined posture when the pallet 7 is moved, and after the pallet movement and positioning, the pallet 7 is erected in a stopped state.
  • neither the pallet guard plate 77 nor the guard supporter 78 may be provided, and the gap G may be closed only by the guard plate 134 .
  • the guard plate 134 may be rotated between the tilted posture and the standing posture.
  • a member made of a flexible material such as a rubber plate may be attached to the tip of 134 to allow some interference between the member and the pallet 7, and the guard plate 134 may be fixed in the upright posture.
  • the laser processing machine 91 can process sheet metal that is larger than the processing area and saves space. For example, it is possible to process a 4 ⁇ 8 standard-sized sheet metal, while saving space.
  • the laser processing machine 91 is capable of processing not only 4 ⁇ 4 and 4 ⁇ 8 standard-sized sheet metal, but also 5 ⁇ 10 standard-sized sheet metal in a 5 ⁇ 5 processing area. , a 3 ⁇ 3 working area, and a 3 ⁇ 6 size sheet metal may be machined.
  • the laser processing machine 91 is not limited to one in which the pallet 7 is locked at two positions, the reference position and the extended position.
  • the pallet 7 may be lockable at three or more positions including the reference position and the extended position, or may be lockable at any position between the reference position and the extended position.

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

Abstract

This laser processing machine (91) comprises: a base part (1) that is installed inside of a reference installation region (RV1) of an installation surface (FL); a pallet (7) that is disposed on the top on the base part (1) and that moves in a horizontal first direction between a first location and a second location at which a projection region (RV2) juts outward of the reference installation region (RV1) relative to the installation surface (FL); and a processing head (55) that is provided so as to be movable inside of an upper region of the base part (1) and that emits a laser beam toward sheet metal (W) placed on the pallet (7) regardless of whether the pallet (7) is at the first location or the second location.

Description

レーザ加工機laser processing machine
　本開示は、レーザ加工機に関する。 This disclosure relates to a laser processing machine.
　特許文献１には、レーザ加工機において、ワークテーブル上の被加工物をクランプし同一方向に移動する第１クランプ及び第２クランプを備えたクランプ装置が記載されている。このクランプ装置によれば、ワークテーブル上の被加工物のレーザ加工領域を、第１クランプ及び第２クランプを移動させることで容易に変えることができる。 Patent Document 1 describes a clamping device provided with a first clamp and a second clamp that clamp a workpiece on a work table and move in the same direction in a laser processing machine. According to this clamping device, the laser processing area of the workpiece on the work table can be easily changed by moving the first clamp and the second clamp.
特開平８－３１８３８９号公報JP-A-8-318389
　レーザ加工機は、一般に、例えばいわゆる４×８（１２１９ｍｍ×２４３８ｍｍ）の定尺板金を載置できるパレットを装備し、レーザ加工ヘッドを、パレットに載置された４×８の定尺板金の全領域を加工可能に二次元移動させる。ところで、レーザ加工機は、例えば４×８の半分のサイズの４×４（１２１９ｍｍ×１２１９ｍｍ）の定尺板金の加工にも多用されている。使用者によっては、レーザ加工機で主として４×４の定尺板金の加工を行い、４×８の定尺板金を加工する頻度が少ない場合も多い。そのため、４×４の定尺板金を主に加工する使用者からは、レーザ加工機の省スペース化が要望されている。 A laser processing machine is generally equipped with a pallet on which, for example, a so-called 4×8 (1219 mm×2438 mm) standard-sized sheet metal can be placed, and a laser processing head is used to move the entire 4×8 standard-sized sheet metal placed on the pallet. Move the area two-dimensionally so that it can be processed. By the way, the laser processing machine is also frequently used for processing a standard sheet metal of 4×4 (1219 mm×1219 mm), which is half the size of 4×8, for example. Depending on the user, there are many cases where the laser processing machine mainly processes 4×4 standard-sized sheet metal, and the frequency of processing 4×8 standard-sized sheet metal is low. Therefore, users who mainly process 4×4 standard-sized sheet metal are demanding a space-saving laser processing machine.
　この要望に対し、特許文献１に記載されたクランプ装置を適用すれば、ワークテーブルとして４×４の定尺板金に相当するサイズのパレットを備え、クランプ装置によりパレット上に載置された４×８の定尺板金を把持してその位置を移動し、加工領域を実質的に拡張するレーザ加工機も検討される。しかしながら、板金が薄い場合には、板金のパレットから張り出した部分が自重で大きく撓むなどして加工に不具合が生じる虞がある。そのため、レーザ加工機は、省スペースでありながら、サイズの大きい板金の加工が可能であることが望まれている。 In response to this demand, if the clamping device described in Patent Document 1 is applied, a pallet having a size corresponding to a 4x4 standard-sized sheet metal is provided as a work table, and a 4x4 placed on the pallet by the clamping device. A laser processing machine that grips eight standard-sized sheet metal and moves its position to substantially expand the processing area is also contemplated. However, if the sheet metal is thin, there is a risk that the portion of the sheet metal that protrudes from the pallet will be greatly bent due to its own weight, resulting in problems in processing. Therefore, it is desired that the laser processing machine is space-saving and capable of processing large-sized sheet metal.
　本実施形態の一態様は、次の構成を有する。
　設置面の基準設置領域の内側に設置される基台部と、前記基台部の上部に配置され、第１の位置と、前記設置面に対し投影領域が前記基準設置領域の外側に張り出す第２の位置との間で水平の第１方向に移動するパレットと、前記基台部の上方領域の内側を移動可能に設けられ、前記パレットが前記第１の位置及び前記第２の位置のいずれにあっても前記パレットに載置された板金に向けレーザビームを射出するレーザ加工ヘッドと、を備えたレーザ加工機である。 One aspect of this embodiment has the following configuration.
a base portion installed inside a reference installation area of an installation surface; a base portion disposed on the upper portion of the base portion; a pallet that moves in a horizontal first direction between a second position and a pallet movably provided inside an upper region of the base, the pallet moving between the first position and the second position; and a laser processing head that emits a laser beam toward the sheet metal placed on the pallet.
　本実施形態の一態様のレーザ加工機によれば、パレットが第１の位置にあるときと第１の位置から移動した第２の位置にあるときとの両方でパレットに載置された加工対象の板金に対しレーザ加工できる。これにより、パレットが移動しない場合と比べて、加工対象の板金に対し加工領域よりも広い領域にレーザ加工をすることができ、加工領域よりも大きい板金の加工が可能で省スペースである。 According to the laser processing machine of one aspect of the present embodiment, the workpiece placed on the pallet both when the pallet is at the first position and at the second position moved from the first position sheet metal can be laser processed. As a result, compared to the case where the pallet does not move, the sheet metal to be processed can be laser-processed in a wider area than the processing area, and the sheet metal larger than the processing area can be processed, saving space.
　本実施形態の一態様によれば、加工領域よりも大きい板金の加工が可能で省スペースである。 According to one aspect of the present embodiment, it is possible to process sheet metal larger than the processing area, which saves space.
図１は、本実施形態に係るレーザ加工機の実施例であるレーザ加工機９１の通常状態を示す斜視図である。FIG. 1 is a perspective view showing a normal state of a laser processing machine 91, which is an example of the laser processing machine according to this embodiment. 図２は、レーザ加工機９１のパレット７が張り出し位置にある状態での斜視図である。FIG. 2 is a perspective view of the pallet 7 of the laser processing machine 91 in the extended position. 図３は、レーザ加工機９１のパレット７の移動状態を示す模式的前面図である。FIG. 3 is a schematic front view showing the moving state of the pallet 7 of the laser processing machine 91. As shown in FIG. 図４Ａは、レーザ加工機９１のパレット７の位置及び加工可能な領域ＡＲ１を説明するための模式図であり、パレット７が基準位置にある状態を示している。FIG. 4A is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows the state where the pallet 7 is at the reference position. 図４Ｂは、レーザ加工機９１のパレット７の位置及び加工可能な領域ＡＲ１を説明するための模式図であり、パレット７が張り出し位置にある状態を示している。FIG. 4B is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows a state in which the pallet 7 is in the extended position. 図５Ａは、レーザ加工機９１（図１参照）のパレット連結部６を示す前面図であり、パレット７を移動させないときの状態を示している。FIG. 5A is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is not moved. 図５Ｂは、レーザ加工機９１（図１参照）のパレット連結部６を示す前面図であり、パレット７を移動させるときの状態を示している。FIG. 5B is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is moved. 図５Ｃは、レーザ加工機９１（図１参照）のパレット連結部６を示す前面図であり、過負荷時の状態を示している。FIG. 5C is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state of overload. 図６は、レーザ加工機９１が備える回収ボックス１１を示す断面図である。FIG. 6 is a cross-sectional view showing the recovery box 11 provided in the laser processing machine 91. As shown in FIG. 図７Ａは、レーザ加工機９１が備えるスパッタガード装置１３の動作を説明する第１の図であり、ガードプレート１３４を立てた状態が示されている。FIG. 7A is a first diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is erected. 図７Ｂはレーザ加工機９１が備えるスパッタガード装置１３を説明する第２の図であり、ガードプレート１３４を伏せた状態が示されている。FIG. 7B is a second diagram for explaining the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is laid down. 図８は、レーザ加工機９１の構成を示すブロック図である。FIG. 8 is a block diagram showing the configuration of the laser processing machine 91. As shown in FIG.
（実施例）
　本実施形態に係るレーザ加工機を、実施例のレーザ加工機９１（図１参照）によって説明する。図１は、本実施形態に係るレーザ加工機の実施例であるレーザ加工機９１の通常状態を示す斜視図である。上下左右前後の各方向を図１に示される矢印の方向で規定する。また、左右方向を第１方向とする。 (Example)
A laser processing machine according to the present embodiment will be described with reference to a laser processing machine 91 (see FIG. 1) of an example. FIG. 1 is a perspective view showing a normal state of a laser processing machine 91, which is an example of the laser processing machine according to this embodiment. The directions of up, down, left, right, front and back are defined by the directions of the arrows shown in FIG. Moreover, let the left-right direction be a 1st direction.
　レーザ加工機９１は、設置面ＦＬの基準設置領域ＲＶ１の内側に設置される基台部１と、基台部１の上部に配置され、第１の位置と、設置面ＦＬに対し投影領域ＲＶ２が基準設置領域の外側に張り出す第２の位置との間で水平の第１方向に移動するパレット７と、基台部１の上方領域の内側を移動可能に設けられ、パレット７が第１の位置及び第２の位置のいずれにあってもパレット７に載置された板金に向けレーザビームを射出するレーザ加工ヘッド５５と、を備えている。 The laser processing machine 91 has a base portion 1 installed inside a reference installation region RV1 on the installation surface FL, and is arranged on the upper portion of the base portion 1, a first position, and a projection region RV2 with respect to the installation surface FL. A pallet 7 movable in a first horizontal direction between a second position projecting outside the reference installation area and a pallet 7 provided movably inside the upper area of the base 1, the pallet 7 being the first and a laser processing head 55 that emits a laser beam toward the sheet metal placed on the pallet 7 at either the position of 1 or the second position.
　さらに、レーザ加工機９１は、前後一対のサイドフレーム２、３、キャレッジ部５、制御部ＣＴを含む制御装置８１、レーザ発振器８２、及び入力部８３を有して構成されている。入力部８３は、制御部ＣＴの制御についての指示及び動作条件等を作業者が入力するためのものである。 Furthermore, the laser processing machine 91 includes a pair of front and rear side frames 2 and 3 , a carriage section 5 , a control device 81 including a control section CT, a laser oscillator 82 and an input section 83 . The input unit 83 is used by the operator to input instructions and operating conditions for the control of the control unit CT.
　基台部１は、概ね直方体状に組まれて設置面ＦＬに設置される。基台部１の右方には、基台部１に連結されて箱状の制御装置８１が配置されている。サイドフレーム２、３は、基台部１の前縁部及び後縁部それぞれ平行に配置される。キャレッジ部５は、前後一対の支柱５１、５２、キャレッジ本体部５３、レーザ加工ヘッド５５、パレット連結部６を備えている。支柱５１、５２は、それぞれサイドフレーム２、３によって左右方向に移動可能に支持されている。キャレッジ本体部５３は支柱５１、５２の上端部を前後方向に連結する梁状部材である。サイドフレーム２は、支柱５１を左右方向に移動させるキャレッジ駆動部２１を有する。 The base part 1 is assembled in a substantially rectangular parallelepiped shape and installed on the installation surface FL. A box-shaped control device 81 connected to the base portion 1 is arranged on the right side of the base portion 1 . The side frames 2 and 3 are arranged parallel to the front and rear edges of the base 1, respectively. The carriage portion 5 includes a pair of front and rear struts 51 and 52 , a carriage body portion 53 , a laser processing head 55 and a pallet connecting portion 6 . The struts 51 and 52 are supported by the side frames 2 and 3, respectively, so as to be movable in the left-right direction. The carriage main body 53 is a beam-shaped member that connects the upper ends of the columns 51 and 52 in the front-rear direction. The side frame 2 has a carriage driving portion 21 that moves the support 51 in the left-right direction.
　レーザ加工ヘッド５５は、キャレッジ本体部５３によって前後方向に移動可能に支持されている。キャレッジ本体部５３は、レーザ加工ヘッド５５を前後方向に移動させるヘッド駆動部５３１を有する。パレット７は、鋸刃状の支持部を上部にして前後方向に延びる板状のワークピースサポート（Workpiece Support）７１（スキッドとも言う）を複数有している。より詳細には、パレット７は、枠体７０、複数のワークピースサポート７１からなるワークピースサポート群７１Ｇ、及び複数のフリーボールベアリング７２を有する。 The laser processing head 55 is supported by the carriage body 53 so as to be movable in the front-rear direction. The carriage body portion 53 has a head driving portion 531 that moves the laser processing head 55 in the front-rear direction. The pallet 7 has a plurality of plate-like workpiece supports 71 (also referred to as skids) extending in the front-rear direction with saw-toothed support portions on top. More specifically, the pallet 7 has a frame 70 , a workpiece support group 71</b>G consisting of a plurality of workpiece supports 71 , and a plurality of free ball bearings 72 .
　枠体７０は、基台部１と制御装置８１とを合わせた左右方向の長さとほぼ同じ左右方向の長さを有し、上面視が長方形の扁平の枠状部材である。図１において、枠体７０の右縁部は、制御装置８１と制御装置８１の上方に離隔配置されたレーザ発振器８２との間の隙間に進入している。枠体７０の上部には、ワークピースサポート７１の複数枚が、前後方向に延びる立ち姿勢で左右方向に離隔して並設されている。複数枚のワークピースサポート７１の群をワークピースサポート群７１Ｇと称する。枠体７０において、ワークピースサポート群７１Ｇは、例えば４×８（１２１９ｍｍ×２４３８ｍｍ）の定尺板金の全体を載置可能な領域で設けられている。 The frame 70 is a flat frame-shaped member that has a length in the left-right direction that is substantially the same as the length in the left-right direction of the combination of the base 1 and the control device 81, and is rectangular when viewed from above. In FIG. 1, the right edge of the frame 70 enters the gap between the control device 81 and the laser oscillator 82 spaced above the control device 81 . A plurality of workpiece supports 71 are arranged side by side on the upper portion of the frame 70 so as to extend in the front-rear direction and are spaced apart in the left-right direction. A group of multiple workpiece supports 71 is referred to as a workpiece support group 71G. In the frame 70, the work piece support group 71G is provided in an area where the entire 4×8 (1219 mm×2438 mm) standard-sized sheet metal can be placed.
　枠体７０は、ワークピースサポート７１の間に、ワークピースサポート７１の上端の高さ位置に対する下方位置と上方位置との間で昇降する複数のフリーボールベアリング７２を有する。複数のフリーボールベアリング７２は、不図示のリンク機構により、手動で同期昇降できる。複数のフリーボールベアリング７２は、手動に限らず、ベアリング駆動部７２１（図３参照）によって制御部ＣＴの制御の下、自動で同期昇降させてもよい。 The frame 70 has a plurality of free ball bearings 72 between the workpiece supports 71 that move up and down between lower and upper positions with respect to the height position of the upper end of the workpiece support 71 . A plurality of free ball bearings 72 can be manually moved up and down synchronously by a link mechanism (not shown). The plurality of free ball bearings 72 are not limited to being manually moved, but may be automatically and synchronously moved up and down by the bearing drive section 721 (see FIG. 3) under the control of the control section CT.
　枠体７０の前縁部には、板金を把持する複数のクランプ（不図示）が備えられている。複数のクランプは、ワークピースサポート群７１Ｇに載置された、又は複数のフリーボールベアリング７２に支持された板金を、制御部ＣＴの制御の下で把持する。 A front edge of the frame 70 is provided with a plurality of clamps (not shown) for gripping the sheet metal. A plurality of clamps grip a sheet metal placed on a workpiece support group 71G or supported by a plurality of free ball bearings 72 under the control of the controller CT.
　レーザ発振器８２は、例えばファイバレーザ発振器であり、レーザビームを生成してレーザ加工ヘッド５５に供給する。レーザ加工ヘッド５５は、供給されたレーザビームを光軸ＰＬのレーザビームとして下方のパレット７に向け射出する。 The laser oscillator 82 is, for example, a fiber laser oscillator, generates a laser beam and supplies it to the laser processing head 55 . The laser processing head 55 emits the supplied laser beam toward the pallet 7 below as a laser beam on the optical axis PL.
　図８は、レーザ加工機９１の構成を示すブロック図である。図８に示されるように、キャレッジ駆動部２１、ヘッド駆動部５３１、及びレーザ発振器８２の動作は、制御部ＣＴによって制御される。これにより、図１に示されるように、レーザ加工機９１は、パレット７に載置された板金に対し、レーザ加工ヘッド５５を前後方向及び左右方向に２次元的に移動させて所望の加工経路でレーザ加工を行うことができる。 FIG. 8 is a block diagram showing the configuration of the laser processing machine 91. As shown in FIG. As shown in FIG. 8, the operations of the carriage driving section 21, the head driving section 531, and the laser oscillator 82 are controlled by the control section CT. As a result, as shown in FIG. 1, the laser processing machine 91 moves the laser processing head 55 two-dimensionally in the front-rear direction and the left-right direction with respect to the sheet metal placed on the pallet 7 to obtain a desired processing path. laser processing can be performed.
　キャレッジ部５の左右方向の移動距離は、ワークピースサポート群７１Ｇの左側の半分又は左側の半分より少し大きい距離である。この距離は、少なくとも４×４（１２１９ｍｍ×１２１９ｍｍ）の定尺板金の一辺の長さ以上である（後述する距離Ｌｘ１に相当する）。このように、レーザ加工機９１は、パレット７に載置した４×４の定尺板金の全領域に対し、レーザ加工できる。 The moving distance of the carriage part 5 in the left-right direction is the left half of the workpiece support group 71G or a distance slightly larger than the left half. This distance is at least equal to the length of one side of a standard sheet metal of 4×4 (1219 mm×1219 mm) (corresponding to the distance Lx1 described later). In this manner, the laser processing machine 91 can perform laser processing on the entire area of the 4×4 standard-sized sheet metal placed on the pallet 7 .
　図１に示される、基台部１及び制御装置８１の上方に跨って位置するパレット７の位置を第１の位置である基準位置とする。 Let the position of the pallet 7 positioned over the base 1 and the control device 81 shown in FIG. 1 be the reference position, which is the first position.
　図２～図４Ｂに示されるように、レーザ加工機９１は、パレット７が基準位置から左方へ所定の距離移動した第２の位置である張り出し位置との間で移動可能となっている。図２は、レーザ加工機９１のパレット７が張り出し位置にある状態での斜視図である。図３は、レーザ加工機９１のパレット７の移動状態を示す模式的前面図である。図４Ａは、レーザ加工機９１のパレット７の位置及び加工可能な領域ＡＲ１を説明するための模式図であり、パレット７が基準位置にある状態を示している。図４Ｂは、レーザ加工機９１のパレット７の位置及び加工可能な領域ＡＲ１を説明するための模式図であり、パレット７が張り出し位置にある状態を示している。 As shown in FIGS. 2 to 4B, the laser processing machine 91 is movable between the overhang position, which is the second position where the pallet 7 is moved leftward from the reference position by a predetermined distance. FIG. 2 is a perspective view of the pallet 7 of the laser processing machine 91 in the extended position. FIG. 3 is a schematic front view showing the moving state of the pallet 7 of the laser processing machine 91. As shown in FIG. FIG. 4A is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows the state where the pallet 7 is at the reference position. FIG. 4B is a schematic diagram for explaining the position of the pallet 7 of the laser processing machine 91 and the processable area AR1, and shows a state in which the pallet 7 is in the extended position.
　図３に示されるように、レーザ加工機９１は、パレット７を直動させるリニアガイド７６を有する。リニアガイド７６は、長尺のレール７３と、レール７３に係合してレール７３に沿って移動する二つのスライダ７４及びスライダ７５を含んで構成されている。レーザ加工機９１において、レール７３は、パレット７の枠体７０の下面の前縁と後縁とにそれぞれ左右方向に延びる姿勢で一対取り付けられている。レール７３に係合したスライダ７４及びスライダ７５は、基台部１の左半分の領域に、左右方向に離隔して取り付けられている。これにより、パレット７は、基台部１に対し、矢印ＤＲ３に示されるように基準位置から第１方向における水平の左方向に移動可能となっている。パレット７の基準位置からの左方への最大移動距離は、４×４の定尺板金の一辺以上である（後述する距離Ｌ７に相当する）。 As shown in FIG. 3, the laser processing machine 91 has a linear guide 76 for linearly moving the pallet 7. The linear guide 76 includes a long rail 73 and two sliders 74 and 75 that engage with the rail 73 and move along the rail 73 . In the laser processing machine 91 , a pair of rails 73 are attached to the front edge and the rear edge of the lower surface of the frame 70 of the pallet 7 so as to extend in the horizontal direction. The sliders 74 and 75 engaged with the rail 73 are attached to the left half area of the base 1 so as to be spaced apart in the left-right direction. As a result, the pallet 7 can be horizontally moved to the left in the first direction from the reference position with respect to the base 1 as indicated by an arrow DR3. The maximum leftward movement distance of the pallet 7 from the reference position is equal to or longer than one side of the 4×4 standard-sized sheet metal (corresponding to the distance L7 described later).
　リニアガイド７６のレール７３がパレット７の枠体７０側に取り付けられていることで、枠体７０の曲げ剛性が向上している。これにより、レーザ加工機９１はレーザ加工における加工精度が向上している。 By attaching the rails 73 of the linear guide 76 to the frame 70 side of the pallet 7, the bending rigidity of the frame 70 is improved. As a result, the laser processing machine 91 has improved processing accuracy in laser processing.
　パレット７が左方に最大距離移動した位置を張り出し位置とする。図２は、レーザ加工機９１において、パレット７が張り出し位置にある状態が示されている。図３に示されるように、パレット７が基準位置にあるときのレーザ加工機９１の設置面ＦＬへの設置領域を基準設置領域ＲＶ１とすると、基台部１は、基準設置領域ＲＶ１内に設置される。パレット７における張り出した部分の設置面ＦＬへの投影領域である張り出し投影領域ＲＶ２は、基準設置領域ＲＶ１から張り出している。すなわち、設置面ＦＬにレーザ加工機９１以外の物を置いていない状態で、張り出し位置にあるパレット７は、基準設置領域ＲＶ１からはみ出した張り出し投影領域ＲＶ２に対応する部分が設置面ＦＬと直接対向するようになっている。基準設置領域ＲＶ１は、図３では、基台部１のみが設置される領域として模式的に示されているが、図１に示されるような制御装置８１を含めたレーザ加工機９１を設置するために必要な領域を意味する。 The position where the pallet 7 has moved the maximum distance to the left is the overhang position. FIG. 2 shows a state in which the pallet 7 is in the extended position in the laser processing machine 91 . As shown in FIG. 3, when the installation area of the laser processing machine 91 on the installation surface FL when the pallet 7 is in the reference position is defined as a reference installation area RV1, the base 1 is installed within the reference installation area RV1. be done. An overhanging projection area RV2, which is a projection area of the overhanging portion of the pallet 7 onto the installation surface FL, overhangs from the reference installation area RV1. That is, in a state in which nothing other than the laser processing machine 91 is placed on the installation surface FL, the pallet 7 in the overhanging position has a portion corresponding to the overhang projection area RV2 protruding from the reference installation area RV1 directly facing the installation surface FL. It is designed to The reference installation area RV1 is schematically shown in FIG. 3 as an area in which only the base portion 1 is installed. means the area necessary for
　図２に示されるように、サイドフレーム３の内面のパレット７と対向する面には、左右方向に離隔して第１パレットセンサ３１及び第２パレットセンサ３２が配置されている。第１パレットセンサ３１及び第２パレットセンサ３２は、いわゆる近接センサである。パレット７が基準位置にあるとき、第１パレットセンサ３１及び第２パレットセンサ３２は共にＯＮとなり、パレット７が張り出し位置にあるときに第１パレットセンサ３１及び第２パレットセンサ３２は共にＯＦＦとなる。パレット７が基準位置と張り出し位置との間の中間にあるとき、第２パレットセンサ３２がＯＦＦで第１パレットセンサ３１がＯＮとなる。第１パレットセンサ３１及び第２パレットセンサ３２のＯＮ／ＯＦＦを示す検出信号は、制御部ＣＴに向け出力される（図８参照）。 As shown in FIG. 2, a first pallet sensor 31 and a second pallet sensor 32 are arranged on the surface of the inner surface of the side frame 3 facing the pallet 7 so as to be spaced apart in the left-right direction. The first pallet sensor 31 and the second pallet sensor 32 are so-called proximity sensors. When the pallet 7 is at the reference position, both the first pallet sensor 31 and the second pallet sensor 32 are turned ON, and when the pallet 7 is at the extended position, both the first pallet sensor 31 and the second pallet sensor 32 are turned OFF. . When the pallet 7 is in the middle between the reference position and the extended position, the second pallet sensor 32 is OFF and the first pallet sensor 31 is ON. A detection signal indicating ON/OFF of the first pallet sensor 31 and the second pallet sensor 32 is output to the controller CT (see FIG. 8).
　サイドフレーム２には、パレット７が基準位置及び張り出し位置にあるときに移動を禁止して位置をロックする第１パレットロック部２２及び第２パレットロック部２３を有する。第１パレットロック部２２及び第２パレットロック部２３は、例えば、ソレノイドの動作による凹凸嵌合によってパレット７の基台部１に対するロック及びロック解除を行う。第１パレットロック部２２及び第２パレットロック部２３の動作は、制御部ＣＴによって制御される（図８参照）。 The side frame 2 has a first pallet lock portion 22 and a second pallet lock portion 23 that prohibit movement and lock the position when the pallet 7 is at the reference position and the extended position. The first pallet lock portion 22 and the second pallet lock portion 23 lock and unlock the pallet 7 with respect to the base portion 1, for example, by engagement of protrusions and recesses caused by the operation of solenoids. The operations of the first pallet lock portion 22 and the second pallet lock portion 23 are controlled by the control portion CT (see FIG. 8).
　次に、パレット７の移動と、パレット７に載置された加工対象の板金Ｗの加工領域について、図４Ａ及び図４Ｂを参照して説明する。 Next, the movement of the pallet 7 and the processing area of the sheet metal W to be processed placed on the pallet 7 will be described with reference to FIGS. 4A and 4B.
　図４Ａにおいて、パレット７の上には、ワークピースとして例えば４×８の定尺の板金Ｗが位置決め載置されている。レーザ加工機９１は、既述のように、パレット７が基準位置にあるときに、パレット７の右側部分がレーザ発振器８２とその下の制御装置８１（図１参照）との間に進入している。 In FIG. 4A, on the pallet 7, for example, a 4×8 standard-sized sheet metal W is positioned and placed as a work piece. As described above, the laser processing machine 91 is such that when the pallet 7 is at the reference position, the right side portion of the pallet 7 enters between the laser oscillator 82 and the control device 81 (see FIG. 1) therebelow. there is
　図４Ａに示されるように、キャレッジ本体部５３は、矢印ＤＲ１に示されるように、左右方向に距離Ｌｘ１の領域を移動する。また、レーザ加工ヘッド５５は、キャレッジ本体部５３に対し、矢印ＤＲ２に示されるように前後方向に距離Ｌｙ１の領域を移動する。これにより、レーザ加工機９１は、パレット７の左半分に概ね相当する、右上がりのハッチングで示された距離Ｌｘ１×距離Ｌｙ１の領域ＡＲ１が加工可能領域（加工領域）となっている。 As shown in FIG. 4A, the carriage body 53 moves in the horizontal direction over a distance Lx1, as indicated by an arrow DR1. In addition, the laser processing head 55 moves in the front-rear direction over a distance Ly1 with respect to the carriage main body 53 as indicated by an arrow DR2. As a result, the laser processing machine 91 has a processable area (processing area) of the area AR1 of distance Lx1×distance Ly1 indicated by hatching upward to the right, which roughly corresponds to the left half of the pallet 7 .
　図４Ｂに示されるように、レーザ加工機９１は、パレット７を基準位置から左方に最大で距離Ｌ７だけ移動可能となっている。距離Ｌ７は、距離Ｌｘ１よりも距離Ｌａだけ短い。これにより、パレット７が基準位置にあるときの加工可能な領域ＡＲ１は、張り出し位置で領域ＡＲＷ１となり、張り出し位置での加工可能な領域ＡＲ１と左右方向に距離Ｌａの幅で領域が重なる。すなわち、レーザ加工機９１は、加工可能な領域が４×４の定尺板金相当の小さい領域に設定された省スペースな装置であっても、パレット７を移動させて加工することで加工可能な領域を相対的に拡張して４×８の定尺板金の加工が可能になっている。 As shown in FIG. 4B, the laser processing machine 91 can move the pallet 7 leftward from the reference position by a maximum distance L7. The distance L7 is shorter than the distance Lx1 by the distance La. As a result, the workable area AR1 when the pallet 7 is at the reference position becomes an area ARW1 at the overhang position, and the area overlaps with the workable area AR1 at the overhang position by a distance La in the left-right direction. That is, even if the laser processing machine 91 is a space-saving device in which the processing area is set to a small area corresponding to a 4×4 standard-size sheet metal, processing can be performed by moving the pallet 7. By relatively expanding the area, it is possible to process a 4×8 standard-sized sheet metal.
　レーザ加工機９１は、パレット７に設けられた連結受容部６１と、レーザ加工ヘッド５５の第１方向の移動と共に移動し、連結受容部６１に対し選択的に連結状態と非連結状態となり得る連結駆動部６２と、を備え、連結駆動部６２が連結受容部６１に対し連結状態とされることで、レーザ加工ヘッド５５の第１方向の移動に伴いパレット７が移動するよう構成されている。 The laser processing machine 91 moves together with the connection receiving portion 61 provided on the pallet 7 and the movement of the laser processing head 55 in the first direction, and is connected to the connection receiving portion 61 so as to be selectively in a connected state and a non-connected state. A driving portion 62 is provided, and the pallet 7 is configured to move as the laser processing head 55 moves in the first direction by connecting the connecting driving portion 62 to the connecting receiving portion 61 .
　図２に示されるように、パレット７は、第１パレットロック部２２及び第２パレットロック部２３のロックを解除した状態で、手動により基準位置と張り出し位置との間で移動可能である。また、次に図５Ａ～図５Ｃを参照して説明するように、パレット連結部６によって、キャレッジ部５の移動に同期させて移動させてもよい。図５Ａは、レーザ加工機９１（図１参照）のパレット連結部６を示す前面図であり、パレット７を移動させないときの状態を示している。図５Ｂは、レーザ加工機９１（図１参照）のパレット連結部６を示す前面図であり、パレット７を移動させるときの状態を示している。図５Ｃは、レーザ加工機９１（図１参照）のパレット連結部６を示す前面図であり、過負荷時の状態を示している。 As shown in FIG. 2, the pallet 7 can be manually moved between the reference position and the extended position with the first pallet lock portion 22 and the second pallet lock portion 23 unlocked. Further, as will be described below with reference to FIGS. 5A to 5C, the pallet connecting portion 6 may be moved in synchronization with the movement of the carriage portion 5. FIG. FIG. 5A is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is not moved. FIG. 5B is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state when the pallet 7 is moved. FIG. 5C is a front view showing the pallet connecting portion 6 of the laser processing machine 91 (see FIG. 1), showing a state of overload.
　パレット連結部６は、連結受容部６１と連結駆動部６２との組からなる。連結受容部６１は、パレット７の枠体７０に固定されている。連結受容部６１は、台座６１１と柱部６１２とを有する。柱部６１２の先端の上面である受容面６１３は、図５Ａに示されるように、前後方向に延びる中心軸線ＣＬ６１を中心とする円筒面の一部として形成されている。連結駆動部６２は、ブラケット６２１、連結シリンダ６２２、移動柱６２４、及びローラ６２５を有する。 The pallet connecting portion 6 is composed of a set of a connection receiving portion 61 and a connection driving portion 62 . The connection receiving portion 61 is fixed to the frame 70 of the pallet 7 . The connection receiving portion 61 has a pedestal 611 and a column portion 612 . As shown in FIG. 5A, a receiving surface 613, which is the upper surface of the tip of the column portion 612, is formed as part of a cylindrical surface centered on a central axis CL61 extending in the front-rear direction. The connection driving part 62 has a bracket 621 , a connection cylinder 622 , a moving post 624 and rollers 625 .
　ブラケット６２１は、キャレッジ本体部５３に固定されて右方に張り出した板状部材である。連結シリンダ６２２は、ブラケット６２１に固定され、動作によって下端面から下方に突出した移動柱６２４を上下方向に移動する。連結シリンダ６２２の動作は制御部ＣＴ（図１及び図２参照）によって制御される。図５Ａに示されるように、ローラ６２５は、移動柱６２４の下端に設けられた前後方向に延びる軸部材６２６を中心として回転する。ローラ６２５の外周面の半径は、受容面６１３の半径と同じか、わずかに小さい。 The bracket 621 is a plate-shaped member that is fixed to the carriage main body 53 and protrudes to the right. The connecting cylinder 622 is fixed to the bracket 621, and moves vertically on a moving column 624 protruding downward from the lower end surface by its operation. The operation of the connecting cylinder 622 is controlled by the controller CT (see FIGS. 1 and 2). As shown in FIG. 5A, the roller 625 rotates around a longitudinally extending shaft member 626 provided at the lower end of the moving column 624 . The radius of the outer peripheral surface of roller 625 is the same as or slightly smaller than the radius of receiving surface 613 .
　パレット７を移動させないときには、図５Ａに示されるように、制御部ＣＴ（図１及び図２参照）は、連結シリンダ６２２の移動柱６２４を上方に引き込んだ状態とし、連結受容部６１と連結駆動部６２とを離間させる。この状態で、キャレッジ部５は、パレット７と連動せずに独立して移動する。 When the pallet 7 is not to be moved, as shown in FIG. 5A, the controller CT (see FIGS. 1 and 2) draws the moving column 624 of the connecting cylinder 622 upward, and the connecting receiving portion 61 and the connecting drive are engaged. The part 62 is spaced apart. In this state, the carriage part 5 moves independently without interlocking with the pallet 7. - 特許庁
　図５Ｂに示されるように、パレット７を、基準位置から張り出し位置へ移動させる際、及び張り出し位置から基準位置に戻す移動をさせる際に、制御部ＣＴ（図１及び図２参照）は、連結シリンダ６２２の移動柱６２４を下方に押し出して、ローラ６２５を受容面６１３と接触させる又は受容面６１３の凹みの中に進入させる（矢印ＤＲ４参照）。この状態で、キャレッジ部５とパレット７とはパレット連結部６を介して連結し、キャレッジ部５の左右方向の移動に連動してパレット７も一体的に移動する。 As shown in FIG. 5B, when the pallet 7 is moved from the reference position to the extended position and when it is moved back from the extended position to the reference position, the control unit CT (see FIGS. 1 and 2) connects Moving post 624 of cylinder 622 is pushed downward to bring roller 625 into contact with receiving surface 613 or into a recess in receiving surface 613 (see arrow DR4). In this state, the carriage part 5 and the pallet 7 are connected via the pallet connecting part 6, and the pallet 7 moves together with the movement of the carriage part 5 in the horizontal direction.
　具体的には、図１に示されるように、制御部ＣＴは、キャレッジ駆動部２１を動作させてキャレッジ部５を最右位置に移動する。キャレッジ部５が最右位置にあり、パレット７が基準位置にある状態で、連結駆動部６２と連結受容部６１とは連結可能である。 Specifically, as shown in FIG. 1, the control unit CT operates the carriage driving unit 21 to move the carriage unit 5 to the rightmost position. With the carriage part 5 at the rightmost position and the pallet 7 at the reference position, the connection driving part 62 and the connection receiving part 61 can be connected.
　図５Ｂに示されるように、制御部ＣＴ（図１参照）は、連結シリンダ６２２を動作させて連結駆動部６２を連結受容部６１に連結させる。次いで、図１に示されるように、制御部ＣＴは、第１ロックシリンダ２２１及び第２ロックシリンダ２３１を動作させてパレット７のロックを解除しパレット７を移動可能としたら、キャレッジ駆動部２１を動作させてキャレッジ部５を最左位置に移動する。この移動に伴い、パレット連結部６によりキャレッジ部５と一体化したパレット７も左方に移動し、パレット７は張り出し位置に移動する。 As shown in FIG. 5B, the control part CT (see FIG. 1) operates the connection cylinder 622 to connect the connection driving part 62 to the connection receiving part 61. As shown in FIG. Next, as shown in FIG. 1, the control unit CT activates the first lock cylinder 221 and the second lock cylinder 231 to unlock the pallet 7 so that the pallet 7 can be moved. It is operated to move the carriage part 5 to the leftmost position. Along with this movement, the pallet 7 integrated with the carriage portion 5 by the pallet connecting portion 6 also moves leftward, and the pallet 7 moves to the extended position.
　図５Ｃに示されるように、パレット連結部６は、パレット７の移動抵抗が所定値よりも大きくなった過負荷時に、自動的に連結が解除されるようになっている。連結駆動部６２の移動柱６２４は、連結シリンダ６２２の動作のために供給されるエアの圧力によって下方に押されている。パレット連結部６が連結状態でキャレッジ部５が例えば右方向に移動しても、パレット７が何らかの理由で移動しない場合が図５Ｃに示されている。 As shown in FIG. 5C, the pallet connecting part 6 is automatically disconnected when overload occurs when the movement resistance of the pallet 7 exceeds a predetermined value. The moving column 624 of the connecting drive part 62 is pushed downward by the pressure of the air supplied to operate the connecting cylinder 622 . FIG. 5C shows a case where the pallet 7 does not move for some reason even if the carriage 5 moves rightward while the pallet connecting portion 6 is in the connected state.
　図５Ｃに示されるように、ローラ６２５は、受容面６１３に沿って回転しながら移動柱６２４自体を、エアの圧力に抗して上方に押し上げる。そして、ローラ６２５は、矢印ＤＲ５に示されるように受容面６１３の高くなっている端部を乗り越え、移動柱６２４は受容面６１３から離脱する。これにより、連結駆動部６２と連結受容部６１との連結が解除されるようになっている。 As shown in FIG. 5C, the roller 625 rotates along the receiving surface 613 and pushes the moving column 624 upward against the air pressure. Roller 625 then rides over the raised end of receiving surface 613 as indicated by arrow DR5, and moving post 624 disengages from receiving surface 613. FIG. Thereby, the connection between the connection driving portion 62 and the connection receiving portion 61 is released.
　上述のように本実施形態の一態様は、図４Ａ及び図４Ｂに示されるように、基台部１（図１参照）と、基台部１の上部に配置され、第１の位置と基台部１から第１の位置よりも張り出した第２の位置との間で移動するパレット７と、パレット７が第１の位置及び第２の位置のいずれにあってもパレット７に向けレーザビームを射出してパレット７に載置された板金Ｗにレーザ加工を行うレーザ加工ヘッド５５と、を備えている。これにより、この一態様は、加工領域ＡＲ１よりも大きい板金Ｗの加工が可能で省スペースである。 As described above, one aspect of the present embodiment includes a base portion 1 (see FIG. 1) and a base portion 1 disposed on the top of the base portion 1 in a first position and a base portion, as shown in FIGS. 4A and 4B. A pallet 7 moving between a second position overhanging the first position from the platform 1 and a laser beam directed at the pallet 7 regardless of whether the pallet 7 is in the first position or the second position. and a laser processing head 55 for performing laser processing on the sheet metal W placed on the pallet 7 by injecting the laser processing head 55 . Accordingly, this one aspect can process a sheet metal W larger than the processing area AR1 and save space.
　図６は、レーザ加工機９１が備える回収ボックス１１を示す断面図である。図７Ａは、レーザ加工機９１が備えるスパッタガード装置１３の動作を説明する第１の図であり、ガードプレート１３４を立てた状態が示されている。図７Ｂはレーザ加工機９１が備えるスパッタガード装置１３の動作を説明する第２の図であり、ガードプレート１３４を伏せた状態が示されている。 FIG. 6 is a cross-sectional view showing the recovery box 11 included in the laser processing machine 91. FIG. FIG. 7A is a first diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is erected. FIG. 7B is a second diagram for explaining the operation of the spatter guard device 13 provided in the laser processing machine 91, and shows a state in which the guard plate 134 is laid down.
　レーザ加工機９１の基台部１は、レーザ加工ヘッド５５によるレーザ加工領域ＡＲ１に対応する回収ボックス１１を備え、パレット７と回収ボックス１１との間の隙間Ｇを塞ぐガードプレート１３４を備えている。また、レーザ加工機９１は、パレット７が第１の位置（基準位置）にあるときに隙間Ｇを塞ぐパレットガードプレート７７を備えている。 The base unit 1 of the laser processing machine 91 includes a recovery box 11 corresponding to the laser processing area AR1 by the laser processing head 55, and a guard plate 134 that closes the gap G between the pallet 7 and the recovery box 11. . The laser processing machine 91 also includes a pallet guard plate 77 that closes the gap G when the pallet 7 is at the first position (reference position).
　ガードプレート１３４は、パレット７が第１の位置（基準位置）にあるときに傾斜姿勢とされ、パレット７が第２の位置（張り出し位置）にあるときに起立して隙間Ｇを塞ぐよう構成されている。 The guard plate 134 is configured to be inclined when the pallet 7 is at the first position (reference position), and stand up to close the gap G when the pallet 7 is at the second position (overhang position). ing.
　図６、図７Ａ、及び図７Ｂに示されるように、レーザ加工機９１の基台部１には、加工領域に対応する回収ボックス１１が配置されている。回収ボックス１１は、レーザ加工において生じてワークピースサポート７１間の隙間から落下したドロス及びスクラップなどを受けるボックスであり、パレット７の下方に配置される。 As shown in FIGS. 6, 7A, and 7B, a collection box 11 corresponding to the processing area is arranged on the base portion 1 of the laser processing machine 91 . The recovery box 11 is a box for receiving dross, scraps, and the like that are generated during laser processing and dropped from the gap between the workpiece supports 71 , and is arranged below the pallet 7 .
　また、レーザ加工機９１には、空気を吸引する吸引装置（不図示）も備えられている。吸引装置は、回収ボックス１１の内部の空気を吸引しフィルタを通して外部へ排出するようになっている。この吸引装置による空気吸引により、レーザ加工で生じ飛散したスパッタも、多くは回収ボックス１１を通して外部へ排出される。しかしながら、パレット７と回収ボックス１１との間の隙間Ｇが大きく開口していると、回収ボックス１１の内部の空間Ｖ１１からその隙間Ｇを通して外部空間へ飛散し、製品に付着するなどして不具合の原因となる。そこで、レーザ加工機９１は、パレット７が基準位置及び張り出し位置のいずれの位置にあってもパレット７と回収ボックス１１との間の隙間Ｇに大きな開口が生じないように、パレットガードプレート７７及びスパッタガード装置１３を有している。 The laser processing machine 91 is also equipped with a suction device (not shown) that sucks air. The suction device sucks the air inside the collection box 11 and discharges it to the outside through a filter. Most of the scattered spatter caused by the laser processing is discharged to the outside through the recovery box 11 by air suction by the suction device. However, if the gap G between the pallet 7 and the collection box 11 is wide open, the particles will scatter from the space V11 inside the collection box 11 to the outside space through the gap G and adhere to the product, causing problems such as adhesion to the product. cause. Therefore, the laser processing machine 91 has a pallet guard plate 77 and a It has a spatter guard device 13 .
　図６におけるスパッタガード装置１３の近傍の拡大図が図７Ａであり、パレット７が基準位置に戻った状態の同じ部分を示す拡大図が図７Ｂである。図６において、パレット７は張り出し位置にある。この状態で、回収ボックス１１とパレット７との間の隙間Ｇは、スパッタガード装置１３の起立したガードプレート１３４によって概ね塞がれている。また、図６及び図７Ａに示されるように、パレット７は、図７Ａにおける右端部に下方に延出するガードサポータ７８を有する。ガードサポータ７８は、起立したガードプレート１３４に対し、上下方向において重なる部分が生じるように下方に延出している。また、ガードサポータ７８は、左右方向については、図７Ａに示されるように、起立したガードプレート１３４と接していてもよいし、わずかに隙間が生じるようになっていてもよい。ガードサポータ７８は、金属板材或いはゴム板材で形成される。 FIG. 7A is an enlarged view of the vicinity of the spatter guard device 13 in FIG. 6, and FIG. 7B is an enlarged view showing the same portion with the pallet 7 returned to the reference position. In FIG. 6 the pallet 7 is in the extended position. In this state, the gap G between the collection box 11 and the pallet 7 is substantially closed by the standing guard plate 134 of the spatter guard device 13 . Also, as shown in FIGS. 6 and 7A, the pallet 7 has a guard supporter 78 extending downward at the right end in FIG. 7A. The guard supporter 78 extends downward so as to overlap the standing guard plate 134 in the vertical direction. In addition, the guard supporter 78 may be in contact with the erected guard plate 134 in the left-right direction, as shown in FIG. 7A, or may have a slight gap. The guard supporter 78 is made of a metal plate material or a rubber plate material.
　スパッタガード装置１３は、ガードシリンダ１３１、ロッド１３２、固定プレート１３３、ガードプレート１３４、ヒンジ１３５、及びリンクプレート１３６を含んで構成されている。ガードシリンダ１３１は、基台部１の右方に配置されている棚板１２の上部に固定されている。ガードシリンダ１３１は、制御部ＣＴ(図１参照)の制御の下、ロッド１３２を出し入れする（矢印ＤＲ６参照）。ロッド１３２の先端には、リンクプレート１３６の一端側が回動可能に連結され、リンクプレート１３６の他端側は、ガードプレート１３４に回動可能（矢印ＤＲ７参照）に連結されている。図７Ｂに示されるように、ガードプレート１３４は、ヒンジ１３５を介して固定プレート１３３に対し前後方向の軸線まわりに回動可能となっている（矢印ＤＲ９参照）。この構成により、ガードシリンダ１３１の動作に伴い、ガードプレート１３４は、ヒンジ１３５を支点として図７Ａに示される起立姿勢と図７Ｂに示される傾斜姿勢との間で回動する。 The spatter guard device 13 includes a guard cylinder 131, a rod 132, a fixing plate 133, a guard plate 134, a hinge 135 and a link plate 136. The guard cylinder 131 is fixed to the upper portion of the shelf plate 12 arranged on the right side of the base portion 1 . The guard cylinder 131 moves the rod 132 in and out (see arrow DR6) under the control of the controller CT (see FIG. 1). One end of the link plate 136 is rotatably connected to the tip of the rod 132, and the other end of the link plate 136 is rotatably connected to the guard plate 134 (see arrow DR7). As shown in FIG. 7B, the guard plate 134 is rotatable about the longitudinal axis with respect to the fixed plate 133 via the hinge 135 (see arrow DR9). With this configuration, as the guard cylinder 131 operates, the guard plate 134 pivots about the hinge 135 between the upright posture shown in FIG. 7A and the tilted posture shown in FIG. 7B.
　図７Ａに示されるように、制御部ＣＴ（図１参照）は、パレット７が張り出し位置にあるときガードシリンダ１３１を動作させてガードプレート１３４を起立姿勢にする。また、図７Ｂに示されるように、パレット７が基準位置にあるとき、ガードシリンダ１３１を動作させてガードプレート１３４を固定プレート１３３とのなす角度が起立姿勢よりも小さい傾斜姿勢とする。一方、パレットガードプレート７７は、パレット７の枠体７０の下面に取り付けられている。より詳細には、パレットガードプレート７７は、パレット７が基準位置にあるとき、ガードプレート１３４の替わりにパレット７と基台部１との間の隙間Ｇを塞ぐ位置に取り付けられている。 As shown in FIG. 7A, the control unit CT (see FIG. 1) operates the guard cylinder 131 to bring the guard plate 134 into the standing posture when the pallet 7 is in the extended position. Further, as shown in FIG. 7B, when the pallet 7 is at the reference position, the guard cylinder 131 is operated to make the angle between the guard plate 134 and the fixed plate 133 smaller than the upright posture. On the other hand, the pallet guard plate 77 is attached to the bottom surface of the frame 70 of the pallet 7 . More specifically, the pallet guard plate 77 is attached in place of the guard plate 134 to close the gap G between the pallet 7 and the base 1 when the pallet 7 is at the reference position.
　図２に示されるように、制御部ＣＴは、ガードシリンダ１３１（図７Ａ及び図７Ｂ参照）を動作させて行うガードプレート１３４の起立姿勢及び傾斜姿勢を、第１パレットセンサ３１及び第２パレットセンサ３２からの検出情報で把握されるパレット７の位置に応じて実行する。 As shown in FIG. 2, the controller CT uses the first pallet sensor 31 and the second pallet sensor to detect the erected posture and tilted posture of the guard plate 134 by operating the guard cylinder 131 (see FIGS. 7A and 7B). It is executed according to the position of the pallet 7 grasped by the detection information from 32.
　上述のように本実施形態の一態様は、図６に示されるように、基台部１は、レーザ加工ヘッド５５（図４Ａ及び図４Ｂ参照）が動作可能なレーザ加工領域ＡＲ１（図４Ａ及び図４Ｂ参照）に対応して回収ボックス１１を備え、パレット７が第１の位置にあるときにパレット７と回収ボックス１１との間の隙間Ｇを塞ぐパレットガードプレート７７と、パレット７が第２の位置にあるときに隙間Ｇを塞ぐガードプレート１３４とを備えている。これにより、レーザ加工機９１は、パレット７の位置によらずレーザ加工で生じたスパッタが外部に飛散する可能性が小さく、製品の品質低下が生じにくい。 As described above, in one aspect of the present embodiment, as shown in FIG. 6, the base 1 has a laser processing area AR1 (FIGS. 4A and 4B) in which the laser processing head 55 (see FIGS. 4A and 4B) can operate. 4B), the pallet guard plate 77 closing the gap G between the pallet 7 and the collection box 11 when the pallet 7 is at the first position, and the pallet 7 is positioned at the second position. and a guard plate 134 that closes the gap G when it is at the position of . As a result, the laser processing machine 91 has a small possibility that the spatter generated by the laser processing scatters outside regardless of the position of the pallet 7, and the quality of the product is less likely to deteriorate.
　また、ガードプレート１３４は、パレット７が第１の位置にあるときに傾斜姿勢とされ、パレット７が第２の位置にあるときに起立して隙間Ｇを塞ぐようになっている。そのため、ガードプレート１３４がパレット７の移動に干渉せず、パレット７が第２の位置にあるときに隙間Ｇをより広く塞ぐことができる。これにより、レーザ加工機９１は、パレット７の位置によらずレーザ加工で生じたスパッタが外部に飛散する可能性がより小さく、製品の品質低下がより生じにくくなっている。 Also, the guard plate 134 is inclined when the pallet 7 is at the first position, and stands up to block the gap G when the pallet 7 is at the second position. Therefore, the guard plate 134 does not interfere with the movement of the pallet 7, and the gap G can be closed more widely when the pallet 7 is at the second position. As a result, the laser processing machine 91 has a smaller possibility that the spatter generated by the laser processing scatters outside regardless of the position of the pallet 7, and the quality of the product is less likely to deteriorate.
　また、パレット７が第１の位置及び第２の位置のいずれの位置にあっても、隙間Ｇをガードプレート１３４で塞ぐようにしてもよい。この場合、パレットガードプレート７７は不要とする。また、ガードサポータ７８は、図７Ａに示されるパレット端部と、パレットガードプレート７７が取り付けられている位置にパレットガードプレート７７の替わりに備えるものとする。 Further, the gap G may be closed with the guard plate 134 regardless of whether the pallet 7 is in the first position or the second position. In this case, the pallet guard plate 77 is not required. Also, the guard supporter 78 is provided at the pallet end shown in FIG.
　また、ガードプレート１３４はパレット７の移動の際は傾斜姿勢とし、パレット移動位置決め後、パレット７が停止した状態で起立させる。また、パレットガードプレート７７及びガードサポータ７８の何れも設けず、隙間Ｇをガードプレート１３４のみで塞ぐようにしてもよい。この場合、ガードプレート１３４を、傾斜姿勢と起立姿勢との間で回動させてもよいが、ガードプレート１３４の起立姿勢における高さをパレット７と干渉しない高さに設定するか、或いはガードプレート１３４の先端にゴム板材などの柔軟性を有する材料で形成した部材を取り付け、その部材とパレット７との多少の干渉を許容する構造にして、ガードプレート１３４を起立姿勢に固定してもよい。 In addition, the guard plate 134 is in an inclined posture when the pallet 7 is moved, and after the pallet movement and positioning, the pallet 7 is erected in a stopped state. Alternatively, neither the pallet guard plate 77 nor the guard supporter 78 may be provided, and the gap G may be closed only by the guard plate 134 . In this case, the guard plate 134 may be rotated between the tilted posture and the standing posture. A member made of a flexible material such as a rubber plate may be attached to the tip of 134 to allow some interference between the member and the pallet 7, and the guard plate 134 may be fixed in the upright posture.
　上述のように、レーザ加工機９１は、加工領域よりも大きい板金の加工が可能で省スペースである。例えば４×８の定尺板金の加工が可能でありながら省スペース化が図れる。レーザ加工機９１は、加工対象が、４×４、４×８サイズの定尺板金であるものに限らず、５×５の加工領域で、５×１０サイズの定尺板金が加工可能、或いは、３×３の加工領域で、３×６サイズの定尺板金が加工可能なものであってもよい。 As described above, the laser processing machine 91 can process sheet metal that is larger than the processing area and saves space. For example, it is possible to process a 4×8 standard-sized sheet metal, while saving space. The laser processing machine 91 is capable of processing not only 4×4 and 4×8 standard-sized sheet metal, but also 5×10 standard-sized sheet metal in a 5×5 processing area. , a 3×3 working area, and a 3×6 size sheet metal may be machined.
　本開示の実施例は、上述した構成に限定されるものではなく、本開示の要旨を逸脱しない範囲において変形例としてもよい。 The embodiments of the present disclosure are not limited to the configurations described above, and modifications may be made without departing from the gist of the present disclosure.
　レーザ加工機９１は、パレット７が基準位置と張り出し位置との２ヶ所でロックされるものに限定されない。パレット７が基準位置と張り出し位置を含む３ヶ所以上でロックできるようになっていてもよく、基準位置と張り出し位置との間の任意の位置でロック可能
であってもよい。 The laser processing machine 91 is not limited to one in which the pallet 7 is locked at two positions, the reference position and the extended position. The pallet 7 may be lockable at three or more positions including the reference position and the extended position, or may be lockable at any position between the reference position and the extended position.
　本願の開示は、２０２１年８月６日に出願された特願２０２１－１３０１９４号に記載の主題と関連しており、それら全ての開示内容は引用によりここに援用される。
  The disclosure of the present application relates to the subject matter described in Japanese Patent Application No. 2021-130194 filed on August 6, 2021, the entire disclosure of which is incorporated herein by reference.

Claims (5)

  1. 　設置面の基準設置領域の内側に設置される基台部と、
    　前記基台部の上部に配置され、第１の位置と、前記設置面に対し投影領域が前記基準設置領域の外側に張り出す第２の位置との間で水平の第１方向に移動するパレットと、
    　前記基台部の上方領域の内側を移動可能に設けられ、前記パレットが前記第１の位置及び前記第２の位置のいずれにあっても前記パレットに載置された板金に向けレーザビームを射出するレーザ加工ヘッドと、を備えた
    レーザ加工機。     a base portion installed inside the reference installation area of the installation surface;
    A pallet that is placed on top of the base and moves in a horizontal first direction between a first position and a second position where the projection area extends outside the reference installation area with respect to the installation surface. and,
    A laser beam is emitted toward the sheet metal placed on the pallet regardless of whether the pallet is at the first position or the second position. A laser processing machine comprising: a laser processing head that
  2. 　前記パレットに設けられた連結受容部と、
    　前記レーザ加工ヘッドの前記第１方向の移動と共に移動し、前記連結受容部に対し選択的に連結状態と非連結状態となり得る連結駆動部と、
    を備え、
    　前記連結駆動部が前記連結受容部に対し前記連結状態とされることで、前記レーザ加工ヘッドの前記第１方向の移動に伴い前記パレットが移動する
    請求項１記載のレーザ加工機。     a connection receiver provided on the pallet;
    a coupling drive that moves with the movement of the laser processing head in the first direction and can be selectively brought into a coupled state and a non-coupled state with respect to the coupling receiver;
    with
    2. The laser processing machine according to claim 1, wherein said pallet moves as said laser processing head moves in said first direction by said connection driving portion being in said connection state with respect to said connection receiving portion.
  3. 　前記基台部は、前記レーザ加工ヘッドによるレーザ加工領域に対応する回収ボックスを備え、前記パレットと前記回収ボックスとの間の隙間を塞ぐガードプレートを備えた
    請求項１又は請求項２記載のレーザ加工機。     3. The laser according to claim 1, wherein the base unit includes a collection box corresponding to a laser processing area by the laser processing head, and a guard plate that closes a gap between the pallet and the collection box. Processing machine.
  4. 　前記パレットが前記第１の位置にあるときに前記隙間を塞ぐパレットガードプレートを備えた
    請求項３記載のレーザ加工機。     4. The laser processing machine according to claim 3, further comprising a pallet guard plate that closes the gap when the pallet is at the first position.
  5. 　前記ガードプレートは、前記パレットが前記第１の位置にあるときに傾斜姿勢とされ、前記パレットが前記第２の位置にあるときに起立して前記隙間を塞ぐ
    請求項３又は請求項４記載のレーザ加工機。     5. The guard plate according to claim 3 or 4, wherein said guard plate is inclined when said pallet is at said first position, and stands up to close said gap when said pallet is at said second position. Laser processing machine.
PCT/JP2022/029817 2021-08-06 2022-08-03 Laser processing machine WO2023013681A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280054646.0A CN117858778A (en) 2021-08-06 2022-08-03 Laser processing machine

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Application Number Priority Date Filing Date Title
JP2021-130194 2021-08-06
JP2021130194A JP2023024106A (en) 2021-08-06 2021-08-06 laser processing machine

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127189A (en) * 1987-11-12 1989-05-19 Toyoda Mach Works Ltd Laser beam machine provided with dust collector
JPH0216291U (en) * 1988-07-20 1990-02-01
JPH0498389U (en) * 1991-02-01 1992-08-25
JPH0732185A (en) * 1993-07-14 1995-02-03 Shibuya Kogyo Co Ltd Laser beam machine
JP2017109285A (en) * 2015-12-18 2017-06-22 村田機械株式会社 Workpiece conveyance system, laser processing system, and workpiece conveyance method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127189A (en) * 1987-11-12 1989-05-19 Toyoda Mach Works Ltd Laser beam machine provided with dust collector
JPH0216291U (en) * 1988-07-20 1990-02-01
JPH0498389U (en) * 1991-02-01 1992-08-25
JPH0732185A (en) * 1993-07-14 1995-02-03 Shibuya Kogyo Co Ltd Laser beam machine
JP2017109285A (en) * 2015-12-18 2017-06-22 村田機械株式会社 Workpiece conveyance system, laser processing system, and workpiece conveyance method

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