WO2023199416A1 - 複合加工機 - Google Patents

複合加工機 Download PDF

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Publication number
WO2023199416A1
WO2023199416A1 PCT/JP2022/017658 JP2022017658W WO2023199416A1 WO 2023199416 A1 WO2023199416 A1 WO 2023199416A1 JP 2022017658 W JP2022017658 W JP 2022017658W WO 2023199416 A1 WO2023199416 A1 WO 2023199416A1
Authority
WO
WIPO (PCT)
Prior art keywords
shutter
separation
turret
bed
expansion
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2022/017658
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English (en)
French (fr)
Japanese (ja)
Inventor
鈴木俊史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Corp
Original Assignee
Fuji Corp
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 Fuji Corp filed Critical Fuji Corp
Priority to JP2024515223A priority Critical patent/JPWO2023199416A1/ja
Priority to PCT/JP2022/017658 priority patent/WO2023199416A1/ja
Publication of WO2023199416A1 publication Critical patent/WO2023199416A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/16—Turret lathes for turning individually-chucked workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/30—Turning-machines with two or more working-spindles, e.g. in fixed arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards

Definitions

  • the present invention relates to a multi-tasking machine equipped with a separation shutter for separating spaces for a plurality of operations performed by a plurality of devices.
  • Patent Document 1 listed below also discloses such a bed machine tool.
  • This machine tool is a multi-tasking machine in which left and right headstocks are arranged on the same axis, and each headstock is provided with a chuck. The headstock on the left side is fixed to the bed, and the headstock on the right side can move on the same axis.
  • the bed is a slant type that slopes lower toward the front, and a composite tool rest is configured to move horizontally toward the rear of the fuselage.
  • a turret tool rest movable in the direction of the machining axis is arranged below the front side of the left and right headstocks. The workpiece gripped by the spindle is then machined by the tools of the turret and compound tool rest.
  • machining operations are performed on the workpiece gripped by the left and right headstocks using the tools of the turret and compound tool post. Therefore, when machining is performed in a single machining chamber in multiple working areas, chips and coolant flying off from one headstock may adhere to the chuck or workpiece in the other headstock, or to the tools in the turret. This may reduce machining accuracy. Therefore, in a multitasking machine, it is preferable that the processing in each work section be performed in separate partitioned spaces, but in the conventional example, there is a shutter that partitions between the automatic tool changer (ATC) and the complex tool rest. only existed. Therefore, a shutter is required to separate the inside of the machine into left and right widthwise separate processing chambers, but with a slant bed with an inclined front side, it is difficult to close off even the inclined portion.
  • ATC automatic tool changer
  • a multi-tasking machine includes a bed including a front inclined surface that is inclined toward the front, a plurality of working sections arranged in the width direction of the machine body of the bed, and a space between the plurality of working sections.
  • a separation shutter that is disposed on the bed and moves back and forth on the bed; and an expansion shutter that is rotatably attached to the separation shutter and expands below the separation shutter as the separation shutter moves forward.
  • the expansion shutter housed in the separation shutter, it is possible to make simple linear movement of the separation shutter and increase the area that blocks off the inside of the aircraft at the separation position, so that the front side tilt Even if the bed has a surface, the expansion shutter can also block the sloped portion of the bed that cannot be blocked by the separation shutter alone.
  • FIG. 1 is a perspective view showing the main structure of an embodiment of a multitasking machine.
  • FIG. 1 is a side view showing the main structure of an embodiment of a multitasking machine.
  • FIG. 3 is a perspective view showing a separation shutter and an expansion shutter.
  • FIG. 3 is a side view showing a separation shutter and an expansion shutter.
  • FIG. 4 is a sectional view taken along the line MM in FIG. 3 showing a separation shutter and an extended shutter.
  • FIG. 6 is a diagram showing changes in the state of the extended shutter.
  • FIG. 2 is a simplified front view showing the interior of the multitasking machine partitioned off by a separation shutter and an expansion shutter.
  • the multitasking machine of this embodiment is a machine tool that has the functions of both an NC lathe and a machining center.
  • 1 and 2 are a perspective view and a side view showing the main structure of the multitasking machine of this embodiment.
  • This multitasking machine 1 includes a first work spindle device 3 and a second work spindle device 4 that rotate a gripped workpiece W, and a first turret device 5 and a second workpiece spindle device 5 each having a plurality of tools T for machining the workpiece W.
  • the two turret devices 6 are opposed two-axis lathes arranged symmetrically.
  • the multitasking machine 1 is provided with a tool spindle device 2 at the center of the machine body for performing machining that is difficult to perform with a lathe.
  • the first and second workpiece spindle devices 3 and 4 (hereinafter referred to as workpiece spindle devices 3 and 4 when explaining the common configuration of both devices) have the same structure, and a spindle is rotatable in a cylindrical headstock 22.
  • a chuck mechanism 21 for gripping a workpiece W to be processed is assembled therein.
  • the rotation of the spindle motor 23 is transmitted to the spindle, and the workpiece W gripped by the chuck mechanism 21 is configured to be phased during machining and to be rotated at a predetermined speed.
  • the workpiece spindle devices 3 and 4 are configured such that a spindle stock 22 and a spindle motor 23 are mounted on a spindle slide 24, and the spindle slide 24 moves on a bed 7.
  • the slant-shaped bed 7 is formed with a front inclined surface 11 that slopes downward toward the front, and a main shaft slide 24 is provided thereon.
  • the direction parallel to the center line of the horizontal main axis in the machine body width direction is defined as the Z axis
  • two guide rails 25 are fixed to the front inclined surface 11 along the Z axis direction.
  • the work spindle devices 3 and 4 are configured such that a spindle slide 24 assembled to a guide rail 25 thereof is moved in the Z-axis direction by a Z-axis servo motor and a ball screw mechanism.
  • the first turret device 5 and the second turret device 6 select the appropriate tool from among the plurality of tools T (turret tools). It is selected by turning and indexing, and predetermined processing such as cutting is performed on the workpiece W.
  • a plurality of tools T are attached to a disk-shaped turret 27 at equal intervals in the circumferential direction, and an arbitrary tool T is moved to a machining position on the circumference by controlling the rotation of an indexing servo motor 28. It is configured so that it can be positioned.
  • the turret devices 5 and 6 move the turret 27 to the YL axis, which is on the XY plane perpendicular to the Z axis and has an angle of 45 degrees with respect to the horizontal and vertical directions. It is configured to move in the direction and the XL axis direction.
  • a YL-axis guide rail 31 is fixed to the rear inclined surface 12 of the bed 7, and a substantially triangular base slide 32 is assembled so as to be able to come into sliding contact with the turret. 27 is assembled in a slidable manner.
  • the base slide 32 and the turret 27 are configured to be able to reciprocate in the YL-axis direction or the XL-axis direction by a servo motor and a ball screw mechanism, respectively.
  • the tool spindle device 2 has a main spindle servo motor and a tool spindle built into the spindle head 35, and a tool mounting section provided at the lower end of the tool spindle device 2, which has a main spindle servo motor and a tool spindle built into the spindle head 35.
  • the tool T spindle head tool
  • the spindle head 35 is attached to the spindle slide 36 so as to rotate about a rotation axis parallel to the Y-axis, and is configured to transmit the rotation of the motor via a rotation transmission mechanism.
  • the tool spindle device 2 is configured to move the spindle head 35 so that a base slide 37 slides on the bed 7 along a horizontal guide rail in the Y-axis direction, and is provided on the front side of the base slide 37.
  • a main shaft slide 36 is attached to a vertical rail portion in the X-axis direction so as to be able to come into sliding contact therewith.
  • the base slide 37 and the main shaft slide 36 are configured to be able to reciprocate in the Y-axis direction or the X-axis direction by a servo motor and a ball screw mechanism, respectively.
  • the multitasking machine 1 is further provided with an automatic tool changer for exchanging tools with respect to the tool spindle device 2, and an automatic work transfer device for conveying the work W to the first work spindle device 3 and the second work spindle device 4. ing.
  • Such a multi-tasking machine 1 is entirely covered with a body cover, and the space inside the machine is partitioned off by two separation shutters 15, etc., as shown in FIG.
  • FIG. 7 is a simplified front view showing the interior of the multitasking machine 1 partitioned by separation shutters 15 and the like.
  • the interior of the multitasking machine 1 constitutes a wide space that allows each device to operate in the Z-axis direction, and is also divided into spaces corresponding to three different work sections.
  • the spaces corresponding to the three working sections in the multitasking machine 1 are a first machining chamber 10A for machining the workpiece W gripped by the first workpiece spindle device 3, and a space for machining the workpiece W gripped by the second workpiece spindle device 4. and a tool spindle space 10C in which tools are exchanged in the tool spindle device 2.
  • FIG. 3 is a perspective view showing the separation shutter 15 and the like
  • FIG. 4 is a side view showing the separation shutter 15 and the like
  • 5 is a sectional view taken along the line MM in FIG. 3, showing the separation shutter 15 and the like. Note that since the two separation shutters 15 arranged symmetrically have the same configuration, only one will be shown and explained.
  • a shutter frame 51 is fixed to the bed 7 of the multitasking machine 1, and the separation shutter 15 is assembled to the shutter frame 51 so as to be movable in the longitudinal direction of the machine.
  • the U-shaped shutter frame 51 has a horizontal guide frame 52 in the Y-axis direction extending in the longitudinal direction of the aircraft fixed to its upper part, and two guide rollers 53 are attached to the upper side of the separation shutter 15. 52 so that it can roll.
  • a support bracket 54 is fixed to the horizontal plane part of the bed 7 so as to be positioned within the frame of the shutter frame 51, and two guide members 55 are fixed to the vertical support plate 61 in the Y-axis direction. It is fixed in two places.
  • a guide rail 56 is fixed to the separation shutter 15 side, and the guide rail 56 is fitted into two guide members 55 in a slidable manner. Therefore, the separation shutter 15 is supported by the guide rail 56 that slides on the lower side and the guide roller 53 that rolls on the upper side, and can move horizontally in the Y-axis direction while maintaining an upright posture. There is.
  • the separation shutter 15 has a hollow box shape as shown in FIG. 5, and has a guide rail 56 fixed to its inner surface. At the bottom of the separation shutter 15 where the guide rail 56 is located, a storage section 151 that extends in the width direction is formed throughout the length direction (Y-axis direction), and the support plate 61 enters from below through a slit cut in the bottom surface. ing. Further, in the housing portion 151, an air cylinder 58 is housed, which is attached to extend and contract in the Y-axis direction in order to move the separation shutter 15.
  • a supporting metal fitting 63 extending toward the rear of the fuselage is horizontally fixed to the support plate 61.
  • the head side end of the air cylinder 58 is fixed to the rear side end of the support fitting 63, and the rod side end is fixed to the support bracket 64 joined to the support plate 61.
  • the air cylinder 58 has a piston rod 581 that extends and contracts horizontally, and its distal end portion is connected to a connecting fitting 59 that is fixed inside the separation shutter 15 .
  • the separation shutter 15 is moved in the longitudinal direction of the aircraft by the expansion and contraction operation of the air cylinder 58, and can be switched between a retracted position shown by a solid line in FIG. 3 and a separation position shown by a dashed-dotted line (solid line in FIG. 4). .
  • an expansion shutter 16 is deployed so as to pop out from below.
  • the separation shutter 15 and the expansion shutter 16 are configured to increase the area for blocking the inside of the machine. This corresponds to the fact that the bed 7 of the multitasking machine 1 is of a slant type, and if only the rectangular separation shutter 15 is used, a gap will be created between the bed 7 and the overlapping front inclined surface 11 at the separation position.
  • the expansion shutter 16 closes the gap.
  • the expansion shutter 16 is formed in a shape that matches the shape of the telescopic cover 41 that covers the guide rail 25 of the front inclined surface 11 and is rotatable within the separation shutter 15.
  • the expansion shutter 16 is configured such that its end portion is pivotally supported by a horizontal rotation shaft fixed to the separation shutter 15 side, and moves integrally while rotating.
  • a guide rail 66 parallel to the Y axis is joined to the support plate 62 of the support bracket 54, and a roller 65 provided on the rotation axis of the expansion shutter 16 is rotatably inserted therein.
  • the U-shaped guide rail 66 is fixed horizontally so as to open toward the rotation axis, and the roller 65 is inserted into the guide rail 66 from the opening side and is configured to roll on the lower surface thereof.
  • a guide plate 67 is provided on the lower surface of the guide rail 66, and a portion of the expansion shutter 16 is slidably abutted thereon.
  • FIG. 6 is a diagram showing changes in the state of the extended shutter 16.
  • a guide plate 67 that guides the expansion shutter 16 has a curved portion 671 bent at approximately 90 degrees at its tip.
  • the expansion shutter 16 is made of a plate material of a predetermined thickness, and rotates when the part that slides on the guide plate 67 passes through its curved part 671, and changes from the storage state A to the intermediate state B (B1 and B2 in FIG. 4), and The state is designed to develop to the cutoff state C or change in the opposite direction.
  • the expansion shutter 16 has a blocking portion that greatly expands from a narrow rectangular portion on which the roller 65 is pivotally supported.
  • the outer diameter shape of the expansion shutter 16 is such that a curved part 72 bent at approximately 90 degrees is formed from a straight part 71 of the rectangular part to the blocking part, and a corner part that slides into contact with the guide rail 66 via a straight acting part 73. It continues up to 74.
  • a matching part 75 corresponding to the shape of the telescopic cover 41 is formed next to the corner part 74, and an outer peripheral part 76 having a shape that does not increase the distance from the center position during rotation, and a rectangular part from the outer peripheral part 76 are formed.
  • the straight line section 77 that returns to is continuous.
  • the separation shutter 15 in the retracted position shown by the solid line in FIG. 3 has the extended shutter 16 in the retracted state A accommodated therein.
  • the inside of the multitasking machine 1 is used to process the workpiece W held by the first workpiece spindle device 3 or the second workpiece spindle device 4 using the tool spindle device 2, and to process the workpiece W gripped by the first workpiece spindle device 3 and the second workpiece spindle device 4. It becomes possible to transfer the workpiece W between the device 3 and the second workpiece spindle device 4.
  • a first machining chamber 10A, a second machining chamber 10B, and a tool spindle space 10C are configured, in which adjacent working sections are isolated from each other.
  • the expansion shutter 16 When the separation shutter 15 moves toward the front of the aircraft, the expansion shutter 16 begins to rotate when the corner portion 74 slides on the guide plate 67 and passes through the curved portion 671, changing from the stored state A in FIG. The state changes to state B (B1 and B2 in FIG. 4). The expansion shutter 16 gradually changes its inclination as the action portion 73 and the curved portion 72 slide against the curved portion 671, and then enters the blocking state C with the straight portion 71 following the straight line of the guide plate 67. Therefore, as shown in FIG. 4, the separation shutter 15 and the expansion shutter 16 partition the inside of the machine, so that the adjacent first machining chamber 10A and tool spindle space 10C, and the second machining chamber 10B and tool spindle space 10C are separated. and are in a state of separation where they are almost cut off.
  • the air cylinder 58 is contracted, and the separation shutter 15 is pulled by the piston rod 581 and slides toward the rear of the machine.
  • the expansion shutter 16 is also pulled toward the rear of the machine, and the curved portion 72 comes into sliding contact with the curved portion 671, and from there the rotation of the roller 65 about the rotation axis begins. That is, the expansion shutter 16 is tilted back by the action portion 73 slidingly contacting the curved portion 671 following the curved portion 72, and changes from the blocking state C to the intermediate state B.
  • the expansion shutter 16 is returned to the storage state A and stored in the separation shutter 15 by rotating so that the corner portion 74 comes into sliding contact with the flat surface of the guide plate 67.
  • the multi-tasking machine 1 of this embodiment by deploying the expansion shutter 16 housed in the separation shutter 15, it is possible to simply move the separation shutter 15 horizontally, while blocking the inside of the machine at the separation position.
  • the area can be increased.
  • the bed 7 is of a slant type in which the front inclined surface 11 is formed, adjacent beds can be separated from each other by the expansion shutter 16. Therefore, for example, even if machining is being performed on the second workpiece spindle device 4 side, the first workpiece spindle device 3 and the first turret device 5 in the first processing chamber 10A are stopped, and the tool exchange operation for the turret 27 is performed. be able to.
  • the expansion shutter 16 rotates according to its shape (curved portion 72, action portion 73) that slides against the curved portion 671 of the guide plate 67, the expansion shutter 16 can be easily configured even within the narrow separation shutter 15. 15, it is possible to change the state according to the movement position.
  • the multi-tasking machine 1 of this embodiment is separated into a first machining chamber 10A, a second machining chamber 10B, and a tool spindle space 10C by the separation shutter 15 and the expanded expansion shutter 16, and the inside of the machine is integrated into one space. This makes it possible to work between separate devices.
  • the multitasking machine is not limited to the configuration of the embodiment described above, and may be an opposed two-axis lathe excluding the tool spindle device 2, and may include only one set of the separation shutter 15 and the expansion shutter 16.
  • Second work spindle device 5 ... First turret device 6
  • Second turret device 7 ... Bed 8
  • Automatic tool change device 9 ...
  • Automatic work transfer Apparatus 10A First machining chamber 10B
  • Second machining chamber 10C Tool spindle space 11
  • Front side inclined surface 15 ...Separation shutter 41
  • Telescopic cover 16 ...Expansion shutter 51
  • Shutter frame 58 ...Air cylinder 67...Guide plate

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
PCT/JP2022/017658 2022-04-13 2022-04-13 複合加工機 Ceased WO2023199416A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024515223A JPWO2023199416A1 (enrdf_load_stackoverflow) 2022-04-13 2022-04-13
PCT/JP2022/017658 WO2023199416A1 (ja) 2022-04-13 2022-04-13 複合加工機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/017658 WO2023199416A1 (ja) 2022-04-13 2022-04-13 複合加工機

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WO2023199416A1 true WO2023199416A1 (ja) 2023-10-19

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0215242U (enrdf_load_stackoverflow) * 1988-07-05 1990-01-30
JPH0419036A (ja) * 1990-05-09 1992-01-23 Yamazaki Mazak Corp 複合加工工作機械及び該工作機械の制御方法
JPH0685750U (ja) * 1993-05-20 1994-12-13 村田機械株式会社 ２軸旋盤のセンタ仕切装置
JPH10530A (ja) * 1996-06-10 1998-01-06 Okuma Mach Works Ltd 並列２主軸旋盤の切削空間仕切装置
JP2000107904A (ja) * 1998-10-06 2000-04-18 Murata Mach Ltd 対向２軸旋盤
WO2001030522A1 (fr) * 1999-10-28 2001-05-03 Nakamura-Tome Precision Industry Co., Ltd. Tour combine a commande numerique
JP2003231035A (ja) * 2002-02-08 2003-08-19 Murata Mach Ltd 工作機械
JP2006346806A (ja) * 2005-06-15 2006-12-28 Nippei Toyama Corp 工作機械のシャッタ装置
JP2015051481A (ja) * 2013-09-06 2015-03-19 オークマ株式会社 並列２主軸旋盤

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0215242U (enrdf_load_stackoverflow) * 1988-07-05 1990-01-30
JPH0419036A (ja) * 1990-05-09 1992-01-23 Yamazaki Mazak Corp 複合加工工作機械及び該工作機械の制御方法
JPH0685750U (ja) * 1993-05-20 1994-12-13 村田機械株式会社 ２軸旋盤のセンタ仕切装置
JPH10530A (ja) * 1996-06-10 1998-01-06 Okuma Mach Works Ltd 並列２主軸旋盤の切削空間仕切装置
JP2000107904A (ja) * 1998-10-06 2000-04-18 Murata Mach Ltd 対向２軸旋盤
WO2001030522A1 (fr) * 1999-10-28 2001-05-03 Nakamura-Tome Precision Industry Co., Ltd. Tour combine a commande numerique
JP2003231035A (ja) * 2002-02-08 2003-08-19 Murata Mach Ltd 工作機械
JP2006346806A (ja) * 2005-06-15 2006-12-28 Nippei Toyama Corp 工作機械のシャッタ装置
JP2015051481A (ja) * 2013-09-06 2015-03-19 オークマ株式会社 並列２主軸旋盤

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