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WO2018016004A1 - Structure de déplacement de rail et machine-outil équipée de celle-ci - Google Patents

Structure de déplacement de rail et machine-outil équipée de celle-ci Download PDF

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Publication number
WO2018016004A1
WO2018016004A1 PCT/JP2016/071167 JP2016071167W WO2018016004A1 WO 2018016004 A1 WO2018016004 A1 WO 2018016004A1 JP 2016071167 W JP2016071167 W JP 2016071167W WO 2018016004 A1 WO2018016004 A1 WO 2018016004A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
wheel
shape
traveling structure
moving
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/JP2016/071167
Other languages
English (en)
Japanese (ja)
Inventor
長井修
浅川和哉
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 Machine Manufacturing Co Ltd
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 Machine Manufacturing Co Ltd filed Critical Fuji Machine Manufacturing Co Ltd
Priority to PCT/JP2016/071167 priority Critical patent/WO2018016004A1/fr
Priority to JP2018528125A priority patent/JP6754431B2/ja
Publication of WO2018016004A1 publication Critical patent/WO2018016004A1/fr
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
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/40—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using ball, roller or wheel arrangements

Definitions

  • the present invention relates to a rail traveling structure in which a traveling table moves when a wheel rolls on a laid rail, and a machine tool including the rail traveling structure.
  • Patent Document 1 discloses a rail traveling structure in a work machine.
  • a lathe which is one of the working machines, has a lathe module that performs cutting work mounted on a base in a movable manner, and is entirely covered with a machine body cover.
  • the lathe module is configured on a movable bed having four wheels on the front, rear, left, and right, and two rails disposed on the base at predetermined intervals are laid on the base.
  • the two rails have different cross-sectional shapes, and the wheel shapes are also different on the left and right according to the rails.
  • one of the two rails has a chevron cross section, and the other has a rectangular cross section. Therefore, as for the wheel rolling on the rail, a V-shaped groove is formed on one of the left and right wheels, and a rectangular groove is formed on the other wheel.
  • a gap exists between the wheel having the rectangular groove and the rail in the rectangular groove of the wheel. Therefore, even if there is a displacement in the width direction between the wheel and the rail, the displacement is allowed by the gap.
  • positional deviation in the width direction is limited because the slopes on both sides are in contact with each other. Therefore, when the lathe module is moved on the base, excellent straightness is obtained by the action of the V-groove wheel side that restrains the width direction.
  • a movable lathe module requires wheels to stop on the rail, and is required to have not only straightness during movement but also vibration damping in a stopped state.
  • an object of the present invention is to provide a rail traveling structure with improved straightness during movement and vibration suppression in a stopped state, and a machine tool provided with the rail traveling structure, in order to solve such problems. .
  • the traveling platform including the wheel when a wheel rolls on the rail, the traveling platform including the wheel is moved along the rail, and the traveling platform is stopped at a predetermined position of the rail.
  • the shape of the rail is different between a moving part where the wheel rolls and a stop part where the wheel stops.
  • a rail is laid on a base, a machining module is mounted on a traveling platform having wheels that roll on the rail, and the machining platform is moved to move the machining platform.
  • the module can be moved and stopped at the work position, and the shape of the rail is different between a moving part where the wheel rolls and a stopping part where the wheel stops.
  • the rail for moving the traveling platform is constituted by the moving part and the stopping part, the straightness at the time of movement and the vibration damping characteristic at the time of stopping can be improved by the shape of each part. become.
  • FIG. 1 is a perspective view showing a structure inside a main body of a machining center.
  • This machining center 1 is arranged together with other machine tools such as a lathe to form a part of the processing machine line, and is configured compactly with other machine tools.
  • workpieces are transferred in order by an autoloader, and predetermined processing is executed in each machine tool.
  • the machining center 1 is a vertical type, and a machining module 2 that is a machine body is covered with a machine body cover (not shown), and a machining chamber for a sealed workpiece is formed inside the cover.
  • the processing module 2 is movable on the base 3 in the front-rear direction, and is assembled on a movable bed 4 having wheels.
  • the machine body longitudinal direction of the machining center 1 is the Y-axis direction
  • the machine body width direction is the X-axis direction
  • the machine body vertical direction is the Z-axis direction.
  • the machining module 2 is provided with a spindle head 5 for holding a tool at the front.
  • the spindle head 5 includes a spindle chuck 11 to which a tool such as a drill or an end mill is detachably attached, and a spindle motor 12 that rotates the tool held by the spindle chuck 11 is provided.
  • the rotation axis of the spindle head 5 that rotates the tool is in the vertical direction (Z-axis direction).
  • a work table 15 fixed to the rotating body 13 projects to the front side of the machine body, and a clamp mechanism for holding the work is provided on the upper surface of the work table 15.
  • the work table 15 is attached to a gantry 16 on the movable bed 4, and the spindle head 5 is attached to be movable in three axial directions by a machining drive unit configured on the gantry 16.
  • a tool magazine 6 storing a plurality of tools is provided between the gantry 16 and the machining drive unit, that is, between the work table 15 and the spindle head 5.
  • a plurality of tools are accommodated inside a box-shaped magazine body, and a tool table is sent out as the door is opened and closed, so that the tool can be exchanged with the spindle chuck 11.
  • a control device 7 for driving and controlling the spindle motor 12 and the drive motor of the rotating body 13 is mounted on the machining module 2 behind the movable bed 4.
  • the machining drive unit of the spindle head 5 moves the tool held by the spindle head 5 in the Z-axis direction, the X-axis drive mechanism for moving in the X-axis direction, and the Y-axis direction.
  • a Y-axis drive mechanism is provided.
  • the machining module 2 is designed so that the driving mechanisms in the three axial directions are arranged in the longitudinal direction of the machine body, and the width of the machine body is reduced.
  • the Y-axis slider 21 is mounted on the tool magazine 6 so as to be movable in the Y-axis direction
  • the X-axis slider 22 is placed in the X-axis with respect to the Y-axis slider 21. It is mounted movably in the direction.
  • a Z-axis slider 23 is mounted so as to be movable in the Z-axis direction with respect to the X-axis slider, and the spindle head 5 is mounted on the Z-axis slider 23.
  • Each of the Y-axis slider 21, the X-axis slider 22, and the Z-axis slider 23 is slidably fitted with a guide rail and a guide block, and is slidably assembled in each direction.
  • a nut fixed to each slider is screwed onto a screw shaft connected to the rotation shaft of the servo motor. Therefore, the rotation is converted into a linear motion by the drive control of each servo motor, and the Y-axis slider 21, the X-axis slider 22, and the Z-axis slider 23 move by a predetermined amount in each direction. Thereby, position control with respect to the workpiece
  • the processing machine line composed of a plurality of machine tools including the machining center 1 has a very compact design as a whole because the machine tools are arranged close to each other in the width direction.
  • the Y-axis slider 21, the X-axis slider 22, and the Z-axis slider 23 are arranged so as to overlap with each other in the Y-axis direction. It is getting smaller.
  • the compact machining center 1 is mounted so that its machining module 2 is adjacent to the machining module of another machine tool on one base 3.
  • the base 2 On the base 2, two sets of two rails 25 corresponding to the width of the processing module 2 or the processing module of another machine tool are laid. Accordingly, another processing module is mounted on the base 2 in proximity to the processing module 2. Then, the processing module 2 is configured so that the left first wheel 27 and the right second wheel 28 provided on the movable bed 4 roll on the two rails 25, thereby moving back and forth along the rails 25. It can be moved. Therefore, even if the machining center 1 is arranged close to the adjacent machine tool on the base 3, for example, the machining module 2 covered by the machine body cover is pulled out to the rear side of the base 3, and maintenance and Exchanges can be made.
  • the machining center 1 incorporates a rail traveling structure including two rails 25 and first and second wheels 27 and 28 of the movable bed 4.
  • this rail traveling structure as shown in FIG. 1, the first and second wheels 27 and 28 stop on the rail 25, and the machining module 2 is positioned at a fixed position on the base 2 for machining.
  • the processing module 2 can be moved in the front-rear direction from the stop position.
  • the rail running structure of this embodiment has taken into consideration the case where the processing module 2 moves on the rail 25 and the case where it is arranged at the processing position.
  • FIG. 2 is a perspective view showing the rail 25 constituting the rail traveling structure and the first wheel 27 mounted thereon.
  • the rail 25 includes a moving rail 31 on which the first wheels 27 roll and a stopping rail 33 on which the first wheels 27 stop arranged on the same straight line, thereby forming a single rail.
  • FIG. 1 shows a mounted state at the time of processing when the processing module 2 is stopped on the movable bed 4.
  • the illustrated rail 25 is a rail for stopping at the place where the first wheel 27 of the movable bed 4 is placed. There are 33, and the other portions are the rails 31 for movement.
  • the rail 25 for the first wheel 27 is shown here, the rail 25 for the second wheel 28 is also composed of a moving rail 31 and a stopping rail 33.
  • the processing module 2 in the stopped state shown in FIG. 1 is required to have a damping property against vibrations generated during processing so as not to reduce the processing accuracy of the machining center 1.
  • the rail traveling structure of the present embodiment has a configuration corresponding to the request with respect to the rail 25 and the first and second wheels 27 and 28.
  • FIG. 3 and 4 are cross-sectional views perpendicular to the Y-axis direction showing the rail 25 and the movable bed 4.
  • the first and second wheels 27 and 28 are on the moving rail 31.
  • FIG. 4 shows the case where the first and second wheels 27 and 28 are on the stopping rail 33.
  • FIG. 5 is a partially enlarged sectional view showing the moving rail 31 and the first wheel 27, and
  • FIG. 6 is a partially enlarged sectional view showing the moving rail 31 and the second wheel 28.
  • the moving rail 31 constituting the rail 25 has a trapezoidal cross section when viewed in the longitudinal direction of the portion protruding upward, and spreads at the left and right sides of the upper surface portion 311 which is a plane.
  • An inclined surface portion 312 is formed.
  • the 1st wheel 27 is formed with the V-shaped groove
  • the second wheel 28 has a rectangular groove 281 having a surface in contact with the upper surface portion 311 formed in a circumferential shape.
  • the second wheel 28 rolling on the moving rail 31 is provided with a gap 285 between the inner surface of the rectangular groove 281 and the moving rail 31, and relative displacement in the left-right width direction is allowed. Therefore, the movable bed 4 that moves on the base 3 can be straightly moved by the first wheel 27 that rolls on one moving rail 31, and the second wheel 28 that rolls on the other moving rail 31. Assembling errors and dimensional tolerances in the width direction are absorbed.
  • the moving rail 31 on the second wheel 28 side functions as a support rail that supports the movement of the movable bed 4, whereas the moving rail 31 on the first wheel 27 side is the reference rail.
  • the circumferential surfaces of the first wheel 27 and the second wheel 28 are formed with V-shaped grooves 271 or rectangular grooves 281 and tapered surfaces 272 and 282 which are inclined so that the diameter on the outer surface side is smaller than the inner surface side. Is formed. Specifically, the circumferential surfaces of the first wheel 27 and the second wheel 28 are tapered so that the diameter decreases from the inner side to the outer side of the movable bed 4 in the vehicle body width direction.
  • a V-shaped groove 271 or a rectangular groove 281 is formed in an intermediate portion in the axial direction of the surface.
  • the tapered surfaces 272 and 282 have a shape corresponding to the stop rail 33. That is, the stop rail 33 is formed with a tapered surface 331 having the same angle as the tapered surfaces 272 and 282 of the first wheel 27 and the second wheel 28 as shown in FIG.
  • the two rails 25 are formed symmetrically, and the tapered surfaces 331 located on the left and right are inclined so as to be lowered toward the middle direction of the two rails 25, that is, toward the inside of the movable bed 4.
  • the tapered surfaces 331 and 282 of the first wheel 27 and the second wheel 28 are applied to the tapered surface 331 of the stopping rail 33.
  • the reaction force of the load on the movable bed 4 is transferred from the stop rail 33 to the first wheel 27 and the second wheel 28.
  • the movable bed 4 acts toward the inner side in the vehicle body width direction. That is, the movable bed 4 is disposed so as to be supported from both the left and right sides via the first wheel 27 and the second wheel 28. Therefore, in this embodiment, the load applied downward acts as a force that restrains the first wheel 27 and the second wheel 28 from the left and right sides, and the vibration damping performance of the processing module 2 on the movable bed 4 is enhanced. ing.
  • the base 3 is provided with a device for applying a load downward to the movable bed 4.
  • the movable bed 4 is formed with a funnel-shaped slot portion 41 penetrating in the front-rear direction and protruding from the base 3.
  • a retracting rod 42 is inserted.
  • the pulling rod 42 has an inverted triangular hooking portion 421 formed at the top thereof inserted into the slot portion 41.
  • the rail 25 for moving the movable bed 4 is constituted by the moving rail 31 and the stopping rail 33, it is possible to improve both the straightness at the time of moving and the vibration damping performance at the time of stopping. it can. Since the first wheel 27 and the second wheel 28 have portions corresponding to both the moving rail 31 and the stopping rail 33 formed on the circumferential surface, the moving rail 31 and the stopping rail 33 are provided. The 1st wheel 27 and the 2nd wheel 28 can be rolled smoothly on one rail 25 consisting of. In addition, when the first wheel 27 and the second wheel 28 roll the pair of left and right rails 25, the first wheel 27 and the second wheel 28 exhibit different functions on the left and right sides. Since the trapezoidal shape is provided, the pair of left and right rails 25 can be made the same.
  • the first wheel 27 is attached to the left side of the movable bed 4 and the second wheel 28 is attached to the right side.
  • the attachment positions of the first wheel 27 and the second wheel 28 are reversed left and right. It may be.
  • the rail traveling structure incorporated in the machining center 1 has been described.
  • the rail traveling structure may be used other than a machine tool.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Machine Tool Units (AREA)
  • Multi-Process Working Machines And Systems (AREA)

Abstract

L'invention concerne une structure de déplacement sur rail qui permet d'améliorer la stabilité de déplacement en ligne droite en mouvement tout en possédant une capacité d'amortissement des vibrations en étant au repos ; et une machine-outil équipée de la structure de déplacement de sur rail. La structure de déplacement sur rail est configurée de telle sorte qu'une plate-forme de déplacement (4) équipée de roues (27, 28) est déplacée le long de rails (25) tandis que les roues (27, 28) roulent sur les rails (25), et elle est mise à l'arrêt à une position prescrite sur les rails (25). Les rails (25) sont configurés de telle sorte qu'une portion de déplacement (31) sur laquelle roulent les roues (27, 28) est réalisée dans une forme différente de celle d'une portion d'arrêt (33) au niveau de laquelle les roues (27, 28) sont mises à l'arrêt.
PCT/JP2016/071167 2016-07-19 2016-07-19 Structure de déplacement de rail et machine-outil équipée de celle-ci Ceased WO2018016004A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/071167 WO2018016004A1 (fr) 2016-07-19 2016-07-19 Structure de déplacement de rail et machine-outil équipée de celle-ci
JP2018528125A JP6754431B2 (ja) 2016-07-19 2016-07-19 レール走行構造およびそのレール走行構造を備えた工作機械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/071167 WO2018016004A1 (fr) 2016-07-19 2016-07-19 Structure de déplacement de rail et machine-outil équipée de celle-ci

Publications (1)

Publication Number Publication Date
WO2018016004A1 true WO2018016004A1 (fr) 2018-01-25

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PCT/JP2016/071167 Ceased WO2018016004A1 (fr) 2016-07-19 2016-07-19 Structure de déplacement de rail et machine-outil équipée de celle-ci

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JP (1) JP6754431B2 (fr)
WO (1) WO2018016004A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109108695A (zh) * 2018-10-29 2019-01-01 苏州市职业大学 一种三轴加工中心加工斜面孔的夹具
CN110355580A (zh) * 2019-08-09 2019-10-22 合肥嗡匠机械有限公司 一种可移动式数控机床及地铺轨道

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03270844A (ja) * 1990-03-20 1991-12-03 Nippon Seiko Kk スライドテーブル機構
JPH0740198A (ja) * 1993-07-15 1995-02-10 Okuma Mach Works Ltd ダブルｖ案内面の形状修正方法及び形状測定装置
JP2002321124A (ja) * 2001-04-25 2002-11-05 Sumitomo Heavy Ind Ltd 作業台車の位置決め装置
WO2016063410A1 (fr) * 2014-10-24 2016-04-28 富士機械製造株式会社 Système de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03270844A (ja) * 1990-03-20 1991-12-03 Nippon Seiko Kk スライドテーブル機構
JPH0740198A (ja) * 1993-07-15 1995-02-10 Okuma Mach Works Ltd ダブルｖ案内面の形状修正方法及び形状測定装置
JP2002321124A (ja) * 2001-04-25 2002-11-05 Sumitomo Heavy Ind Ltd 作業台車の位置決め装置
WO2016063410A1 (fr) * 2014-10-24 2016-04-28 富士機械製造株式会社 Système de fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109108695A (zh) * 2018-10-29 2019-01-01 苏州市职业大学 一种三轴加工中心加工斜面孔的夹具
CN109108695B (zh) * 2018-10-29 2024-03-26 苏州市职业大学 一种三轴加工中心加工斜面孔的夹具
CN110355580A (zh) * 2019-08-09 2019-10-22 合肥嗡匠机械有限公司 一种可移动式数控机床及地铺轨道

Also Published As

Publication number Publication date
JP6754431B2 (ja) 2020-09-09
JPWO2018016004A1 (ja) 2019-05-09

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