WO2008013313A1 - Tour automatique ayant une pluralité de porte-outil - Google Patents

Tour automatique ayant une pluralité de porte-outil Download PDF

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Publication number
WO2008013313A1
WO2008013313A1 PCT/JP2007/065110 JP2007065110W WO2008013313A1 WO 2008013313 A1 WO2008013313 A1 WO 2008013313A1 JP 2007065110 W JP2007065110 W JP 2007065110W WO 2008013313 A1 WO2008013313 A1 WO 2008013313A1
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WO
WIPO (PCT)
Prior art keywords
axis
tool
base
automatic lathe
swivel
Prior art date
Application number
PCT/JP2007/065110
Other languages
English (en)
Japanese (ja)
Inventor
Masahiko Watanabe
Atsushi Aoyagi
Original Assignee
Citizen Holdings 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 Citizen Holdings Co., Ltd. filed Critical Citizen Holdings Co., Ltd.
Priority to JP2008526851A priority Critical patent/JP4997240B2/ja
Publication of WO2008013313A1 publication Critical patent/WO2008013313A1/fr

Links

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
    • B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
    • B23B3/065—Arrangements for performing other machining operations, e.g. milling, drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B7/00—Automatic or semi-automatic turning-machines with a single working-spindle, e.g. controlled by cams; Equipment therefor; Features common to automatic and semi-automatic turning-machines with one or more working-spindles
    • B23B7/02—Automatic or semi-automatic machines for turning of stock
    • B23B7/06—Automatic or semi-automatic machines for turning of stock with sliding headstock
    • 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
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/48—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
    • B23Q1/4804—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs a single rotating pair followed perpendicularly by a single sliding pair
    • 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
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
    • B23Q39/021—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like
    • B23Q39/025—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with different working directions of toolheads on same workholder
    • B23Q39/026—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with different working directions of toolheads on same workholder simultaneous working of toolheads
    • 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
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/04—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps
    • B23Q39/048—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps the work holder of a work station transfers directly its workpiece to the work holder of a following work station
    • 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
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q2039/008—Machines of the lathe type

Definitions

  • the present invention relates to a multi-function automatic lathe provided with a plurality of turrets that can be individually moved with respect to a spindle.
  • an automatic lathe represented by a numerical control (NC) lathe
  • a plurality of turrets are centrally mounted on a lathe, and the operations of these turrets are individually controlled to produce the same workpiece (ie, workpiece)
  • Multi-function automatic lathes that can perform different types of automatic machining (for example, external rounding and boring) simultaneously or in any order are known.
  • multi-function automatic lathe multiple types of tools such as bi-rods, drills, and mills are interchangeably mounted on multiple turrets, and turning, drilling, and milling are performed on workpieces held on the spindle.
  • Various proposals have been made to enable various machining processes such as cutting to be performed automatically and to process workpieces with complex and diverse shapes.
  • European Patent Application Publication No. 1 2 7 0 1 4 5 is a multi-function automatic lathe, in which a plurality of tools are arranged in parallel in addition to a general turret turret.
  • a tool post that can be mounted in an arrangement is provided, and this tool post can be swiveled around an axis parallel to a feed control axis (for example, referred to as the Y axis) that allows the tool selection operation to be performed by itself.
  • a feed control axis for example, referred to as the Y axis
  • the swivelable turret has a radial arrangement in which a plurality of tools are directed radially outwards around an axis parallel to a swivel control axis (for example, referred to as the B axis), and are arranged at a plurality of swivel index positions. Each can be installed.
  • the pivot axis of the swivelable tool post is located at the approximate center of the radial arrangement of the tool group with the cutting edges facing outwards.
  • the distance from the machining point to the turning center of the turret is relatively long, and as a result, there is a tendency that the moment torque applied to the turret drive unit by the cutting force during machining is increased. Therefore, in order to position and hold the tool post (that is, the tool) that improves machining accuracy with high accuracy, it is necessary to increase the output of the drive unit or equip the accessory such as a reducer or brake. As a result, there is concern that it will be difficult to reduce the overall dimensions of the automatic lathe.
  • the tool tips of the individual tools mounted on the turret that can be turned are located radially outward as viewed from the swivel axis of the turret.
  • the positional relationship between the feed table that supports the tool and the workpiece machining points of the individual tools on the tool post changes greatly according to the turning angle of the tool post. Therefore, each time the turret is turned as the machining process progresses, the feed operation stroke of the turret (that is, the feed table) for moving the tool to be used to the workpiece machining point becomes relatively large. There is concern that it will be difficult to reduce the overall dimensions of the lathe.
  • a turnable tool post is combined with a control axis (for example, Z axis) parallel to the rotation axis of the main axis and a control axis (for example, X axis) orthogonal to the rotation axis.
  • a control axis for example, Z axis
  • a control axis for example, X axis
  • An object of the present invention is to provide a multi-function automatic lathe equipped with a plurality of turrets that can be individually moved with respect to the main spindle, without reducing the versatile machining ability using various types of tools.
  • the aim is to provide a high-performance automatic lathe capable of reducing dimensions and ensuring a high level of tool positioning accuracy.
  • the present invention provides a lathe machine base, a main spindle, a plurality of tool rests mounted on the lathe base so as to be individually movable with respect to the main spindle, and the plurality of tool rests. And a swivel that supports a linear motion independently of each other under the control of different feed control axes, and the swivel is centered on an axis that intersects each linear motion direction of the plurality of tool rests.
  • Provide an automatic lathe installed on the lathe base so that it can turn under the control of a turning control axis.
  • the swivel base is specified with respect to the axis under the control of the turning control axis.
  • a specified slanted hole can be formed by simply moving the tool post with the specified tool in a linear feed operation under the control of its own feed control axis in an angled state. Therefore, during this type of machining operation, it is easy to control the feed operation of multiple tool rests, and only the feed mechanism deployed on one of the control axes needs to be operated. Positioning accuracy can be easily secured. Also, multiple turrets can be arranged with respect to the axis of the swivel.
  • the feed torque of each tool post on the swivel to reduce the moment torque applied to the swivel drive mechanism during machining or to move the tool used to the workpiece machining point stroke
  • the overall dimensions of the automatic lathe can be reduced without degrading the versatility of machining using various types of tools.
  • the axis of the swivel can be arranged substantially in front of the cutting edges of a plurality of tools mounted on the plurality of tool rests.
  • the workpiece machining point by each tool can be set as close as possible to the swivel axis of the swivel common to the plurality of tool rests. Therefore, the moment torque that is applied to the drive mechanism of the swivel base is reduced by the cutting resistance during the machining operation, and it is not necessary to increase the output of the drive mechanism and additional equipment such as speed reducers and brakes. Machining accuracy can be improved by positioning and holding the tool post (ie tool) with high accuracy.
  • the positional relationship between the reference point on the lathe machine that supports a plurality of turrets so as to be able to turn via the swivel and the workpiece machining point by each tool on each turret is that the swivel is swiveled. Therefore, when the swivel is swung as the machining process progresses, the feed stroke of each turret on the swivel to move the tool used to the workpiece machining point is It is possible to make the minimum amount of movement necessary to move forward from the retracted position. As a result, the overall dimensions of the automatic lathe can be effectively reduced.
  • the automatic lathe may be configured such that the axis of the swivel base is perpendicular to the rotation axis of the main shaft.
  • the plurality of tool rests can be supported on the swivel base so as to be linearly movable in different directions radially about the axis.
  • the plurality of turrets can include comb tooth turrets in which a plurality of tools are mounted in a parallel arrangement. This mouth, each of those turrets
  • the line motion direction can be perpendicular to the axis of the swivel and to the parallel direction of multiple tools.
  • the automatic lathe may further include a feed base that supports the swivel base so as to be turnable on the lathe base.
  • the feed base can be installed on the lathe machine base in a direction parallel to the axis of the swivel base and capable of linear operation under the control of a feed control axis different from the feed control axes of the plurality of tool rests.
  • the spindle is installed on the lathe machine base so that it can operate linearly under the control of a feed control axis that is different from the feed control axes of the plurality of turrets in a direction parallel to the axis of rotation of the spindle and perpendicular to the axis of the swivel base. be able to.
  • the automatic lathe may further include a guide bush positioned between the spindle and the plurality of tool rests.
  • the axis of the swivel base can be arranged close to the workpiece delivery end face of the guide bush.
  • the swivel base is installed on the lathe machine base so that it can operate in a straight line under the control of a feed control axis that is different from the feed control axes of multiple tool posts in a direction parallel to the axis of rotation of the spindle and perpendicular to the axis of the swivel base. Can be done.
  • the automatic lathe may further include a back spindle that can be disposed opposite the spindle.
  • the plurality of tool rests supported by the swivel base may include a back tool post that performs a machining operation on the back spindle.
  • FIG. 1 is a perspective view schematically showing the overall configuration of an automatic lathe according to an embodiment of the present invention.
  • Figure 2 is a schematic front view of the automatic lathe of Figure 1,
  • Fig. 3 is a schematic plan view of the automatic lathe of Fig. 1.
  • Fig. 4 is an enlarged perspective view of the main part of the automatic lathe of Fig. 1.
  • Fig. 5 is a diagram schematically showing an example of machining operations that can be performed by the automatic lathe of Fig. 1.
  • Fig. 6 is a diagram schematically showing another example of machining operations that can be performed by the automatic lathe of Fig. 1.
  • FIG. 7 is a diagram schematically showing still another example of machining operations that can be performed by the automatic lathe of FIG.
  • FIG. 8 is a diagram schematically showing still another example of machining operations that can be performed by the automatic lathe of FIG.
  • FIG. 9 is a diagram schematically showing still another example of machining operations that can be performed by the automatic lathe of FIG.
  • FIG. 10 is a diagram schematically showing still another example of machining operations that can be performed by the automatic lathe of FIG.
  • FIG. 11 is a perspective view schematically showing the overall configuration of an automatic lathe according to another embodiment of the present invention.
  • FIG. 12 is a perspective view schematically showing the overall configuration of an automatic lathe according to still another embodiment of the present invention.
  • FIGS. 1 to 4 are diagrams showing an automatic lathe 10 according to an embodiment of the present invention
  • FIGS. 5 to 10 are examples of various machining operations that can be performed by an automatic lathe 10.
  • FIG. Automatic lathe 1 0, 1 lathe machine Multiple turrets are centrally mounted on the platform, and different types of automatic machining (for example, external rounding and medium machining) are performed on workpieces held on the spindle by various tools such as pipes, drills, and millers mounted on each turret. It has a multi-functional structure that can be performed simultaneously or in any order.
  • Such a multifunctional automatic lathe 10 can have a control configuration as a numerical control (NC) lathe, for example.
  • NC numerical control
  • the number, arrangement, type, and the like of the spindle and the tool post included in the automatic lathe according to the present invention are not limited to the configuration of the illustrated embodiment.
  • the automatic lathe 10 is mounted on a lathe machine base 1 2, a lathe machine base 1 2, and a main spindle 14 having a rotation axis 1 4 a and a main spindle 14.
  • the first and second tool rests 1 8 and 2 0 are mounted on a lathe machine base 12 so as to be individually movable, and a plurality of tools 16 are mounted on each of them.
  • the automatic lathe 10 also has an optional additional mechanism with a rotation axis 2 2 a parallel to the rotation axis 14 of the spindle 14 and mounted on the lathe machine base 1 2 so that it can be placed opposite to the spindle 14 And a back tool post 2 4 which is mounted on a lathe machine base 1 2 so as to be movable with respect to the back spindle 2 2 and on which a plurality of tools 16 are mounted.
  • a lathe machine base 1 2 includes a main spindle 14, first and second tool rests 18, 20, a rear main spindle 2 2, and a rear tool rest 2 4, which are controlled by a plurality of control axes in a predetermined orthogonal three-axis coordinate system. It is movably supported under the control of
  • the main spindle 14 is the main (or front side) main spindle that grips and rotates the rod-shaped workpiece W supplied from the outside of the lathe, and its rotation axis 1 4 a is drawn from the installation floor of the lathe machine base 1 2 It is arranged horizontally as seen, and is rotatably incorporated in the headstock 26 via a bearing device (not shown).
  • the main shaft 14 has a hollow cylindrical structure, and a chuck (for example, a collet chuck) (not shown) capable of firmly gripping the workpiece W fed from the rear end side in the front end (right end in the figure) region. Is installed.
  • the headstock 26 is mounted on a spindle mounting portion 28 provided in one end region of the lathe machine base 12 in the longitudinal direction.
  • the spindle stock 26 is controlled under a feed control axis (referred to as Z1 axis) parallel to the rotation axis 14a of the spindle 14 in a predetermined orthogonal three-axis coordinate system.
  • a spindle drive mechanism (not shown) is installed.
  • the main shaft drive mechanism includes a Z 1 axis drive source (for example, an AC servo motor), a Z 1 axis guide member (for example, a slide guide), a feed screw device (for example, a pole screw), and the like. Therefore, the main spindle 14 reciprocates linearly with the headstock 2 6 over a predetermined feed stroke by the operation of the main spindle drive mechanism under the control of the Z 1 axis parallel to its own rotation axis 14 a. To do.
  • the headstock 26 further includes a rotation drive source (for example, a built-in AC servo motor) (not shown) that drives the spindle 14 to rotate.
  • the main shaft 14 can have a rotation control axis (referred to as C axis) around the rotation axis 14 a.
  • C axis rotation control axis
  • the desired turrets 1 8 and 2 0 are equipped at the desired positions on the end face and outer peripheral surface of the workpiece W gripped by the chuck by the C-axis positioning and indexing operation obtained by controlling the spindle rotation drive source. It is possible to perform various processes using the rotating tool.
  • a column 30 is erected in the center of the lathe machine table 12 in the longitudinal direction, adjacent to the spindle mounting portion 2 8, at a position shifted laterally from the rotation axis 14 a of the spindle 14.
  • the column 30 carries the feed base 3 2 so that it can move linearly in the vertical direction perpendicular to the spindle rotation axis 14 a on the front face (vertical face) 30 a close to the spindle 14.
  • the feed base 3 2 is a feed base drive mechanism installed in the column 30 under the control of a feed control axis (referred to as Y 1 axis) perpendicular to the Z 1 axis in a predetermined orthogonal three-axis coordinate system.
  • the feed base drive mechanism consists of a Y 1 axis drive source (eg, AC servo motor), a Y 1 axis guide member (eg, slide guide), and a feed screw assembly. (For example, a pole screw).
  • a Y 1 axis drive source eg, AC servo motor
  • a Y 1 axis guide member eg, slide guide
  • a feed screw assembly e.g, a pole screw
  • the feed base 32 includes a pair of arms 3 4 that extend horizontally from the front surface 30 a of the column 30 in a direction approaching the spindle rotation axis 14 a. These arms 3 4 are fixedly arranged on the feed base 32 so as to be sufficiently separated from each other in the vertical direction.
  • the swivel base 36 is a swivel base drive mechanism installed on the feed base 32 under the control of a swivel control axis (referred to as the B axis) parallel to the Y 1 axis in a predetermined orthogonal three-axis coordinate system. (Not shown), the reciprocating motion is performed over a predetermined angle range.
  • the swivel base drive mechanism includes a B-axis drive source (for example, an AC servo motor), a power transmission device (for example, a gear train), and the like.
  • the swivel base 36 is a prismatic member having a cross section of a substantially right triangle, and substantially flat tool rest support surfaces 3 8 and 40 are formed on each of a pair of side surfaces orthogonal to each other.
  • the swivel base 36 has a pair of turret support surfaces 3 8, 4 0 via a pair of arms 4 2 that are fixedly extended in a direction beyond the intersecting line of the turret support surfaces 3 8, 40. In a state where it is arranged in a vertical posture parallel to the turning axis 3 6 a, it is rotatably supported by the pair of arms 3 4 of the feed base 3 2.
  • the first tool post 18 8 force S is supported on one tool post supporting surface 3 8 of the swivel base 36 so that it can move linearly in the horizontal direction perpendicular to the swivel axis 3 6 a.
  • the first tool post 18 is a first tool post installed on the swivel base 3 6 under the control of the feed control axis (referred to as the XI axis) orthogonal to the Y 1 axis in a predetermined orthogonal three-axis coordinate system. Actuation of a drive mechanism (not shown) causes linear reciprocation over a predetermined feed stroke.
  • the first tool post The drive mechanism is configured to include an XI axis drive source (for example, AC surfamo), an XI axis plan member (for example, a slide guide), a feed screw device (for example, a ball screw), and the like.
  • the first tool post 18 is fixedly installed on a tool post table 44 that is movably supported by the swivel base 36 via the first tool post drive mechanism.
  • the first turret 18 has a comb-tooth turret configuration in which a plurality of tools 16 are mounted in a parallel arrangement.
  • various tools 16 such as a byte, a drill, and a miller are arranged in parallel in a vertical direction parallel to the swivel axis 3 6 a of the swivel base 3 6.
  • Each blade edge is fixedly held in a horizontal posture in which it faces the swivel axis 36a.
  • the first tool post 18 includes a first holding portion 1 8 A capable of holding a plurality of turning tools 1 6 A such as a byte in parallel arrangement, and a plurality of rotating tools 1 such as a milling cutter 1.
  • 6 B has a second holding section 18 B that can hold B in a parallel arrangement (see Figs. 2 and 4).
  • the second tool rest 20 is supported on the other tool rest supporting surface 40 of the swivel base 36 so as to be linearly movable in the horizontal direction perpendicular to the swivel axis 36 a.
  • the second tool post 20 is a swivel base 3 6 under the control of a feed control axis (referred to as X2 axis) orthogonal to both the Y1 axis and the X1 axis in a predetermined orthogonal three-axis coordinate system.
  • a second turret drive mechanism (not shown) installed on the machine moves back and forth linearly over a predetermined feed stroke.
  • the second turret drive mechanism includes an X 2 axis drive source (for example, AC surfamo), an X 2 axis guide member (for example, a slide guide), a feed screw device (for example, a pole screw), and the like.
  • the second tool post 20 is fixedly installed on a tool post table 46 that is movably supported by the swivel base 36 via a second tool post drive mechanism.
  • the second tool post 20 has a comb tooth post configuration in which a plurality of tools 16 are mounted in a parallel arrangement.
  • Comb tooth structure 2nd tool post 20 Various tools such as drills, drills, and millers 1 6 are arranged in parallel in the vertical direction parallel to the swivel axis 3 6 a of the swivel base 3 6, and the respective cutting edges are arranged in the swivel axis.
  • the second tool post 20 is, like the first tool post 18, a first holding unit that can hold a plurality of turning tools 16 A such as a byte in a parallel arrangement.
  • FIGS. 2 and 4 a second holding part 20 B capable of holding a plurality of rotary tools 16 B such as a milling cutter in parallel arrangement (see FIGS. 2 and 4).
  • the first and second tool rests 18, 20 are independent on the swivel base 36 under the control of different feed control axes (XI axis and X 2 axis).
  • the swivel base 3 6 swivels on the feed base 3 2 about the axis 3 6 a that intersects the linear movement directions of the first and second tool rests 1 8 and 20. It can be swiveled under the control of the control axis (B axis).
  • the feed base 3 2 is on the lathe machine base 1 2 in the direction parallel to the axis 3 6 a of the swivel base 3 6.
  • the linear movement can be performed under the control of the feed control axis (Y 1 axis) different from the feed control axes (XI axis and X 2 axis) of the bases 18 and 20.
  • the first turret 1 8 is fed with the desired tool 16 selected and indexed on the first turret 1 8 by the Y 1 axis feed operation of the feed base 3 2.
  • the swivel base 3 2 With the swivel base 3 2 on the B axis swivel movement of 6 6, it is placed at the desired facing angle with respect to the work W gripped by the main spindle 1 4, and in this state, the cutting edge of the tool 1 6 is placed on the swivel base 3 6
  • the workpiece W can be machined by the cooperation of the XI axis feed operation of the first tool post 1 8 and the Z 1 axis feed operation of the spindle 14 described above.
  • the second tool post 20 is the swivel base on the feed base 32 with the desired tool 16 selected and indexed on the second tool post 20 by the Y 1 axis feed operation of the feed base 32.
  • the workpiece W can be machined by the cooperation of the X 2 axis feed operation of the tool post 20 itself and the Z 1 axis feed operation of the spindle 14 described above. In this way, the workpiece W gripped by the spindle 14 can be simultaneously or selectively used by the desired tool 16 on the first tool post 18 and the desired tool 16 on the second tool post 20 ( (Alternatively) By using it, it can be processed into a desired shape.
  • Second turrets 18 and 20 are installed.
  • the swivel base 3 6 is moved to the axis 3 6 under the B axis control.
  • the first or second tool post 1 8, 2 0 fitted with the specified tool 16 is placed under the control of its own feed control axis (XI axis or X 2 axis) in a state of being arranged at the specified angle with respect to a.
  • the specified diagonal hole can be formed simply by moving it linearly. Therefore, during this type of machining operation, the feed operation control of the first and second tool rests 18 and 20 becomes easy, and only the feed mechanism (turret drive mechanism) provided on one of the control axes operates. Therefore, a high level positioning accuracy of the tool 16 can be easily secured.
  • the swivel axis 3 6 a of the swivel base 36 is connected to the cutting edges of a plurality of tools 16 mounted on the first and second tool rests 18, 20.
  • a machine configuration that is arranged substantially forward can be easily realized. According to such a configuration, the workpiece machining point by each tool 16 is set as close as possible to the common pivot axis 3 6 a of the first and second tool rests 18, 20. be able to. Therefore, the moment torque applied to the drive mechanism of the swivel base 36 is reduced by the cutting resistance during the machining operation, and the output of the drive mechanism is increased and accessories such as reducers and brakes are added. Without the need for additional equipment, the first and second tool rests 18 and 20 (that is, the tool 16) can be positioned and held with high accuracy to improve the machining accuracy. As a result, the overall dimensions of the automatic lathe 10 can be effectively reduced.
  • the swivel base 3 on the lathe machine base 1 2 The positional relationship between the workpiece machining point by the feed table 3 2 that supports the two turrets 1 8 and 20 through the 6 and the individual tools 1 6 on the turrets 1 8 and 20 is Even if the swivel base 3 6 turns, there will be no substantial change. Therefore, when the swivel base 3 6 is swung as the machining process progresses, each tool post 1 8, 20 on the swivel base 3 6 is moved to move the tool 16 to the workpiece machining point.
  • the motion stroke can be the minimum amount of movement required to advance from the retracted position. As a result, the overall dimensions of the automatic lathe 10 can be effectively reduced.
  • the automatic lathe 10 is configured so that the first and second tool rests 18 and 20 that can be individually moved with respect to the spindle 14 are used to work the workpiece W. It is possible to effectively reduce the overall dimensions of the automatic lathe 10 while maintaining the versatility of applying various machining to the tool. .
  • the automatic lathe 10 employs a configuration in which the swivel axis 36 a of the swivel base 36 is orthogonal to the rotation axis 14 a of the main shaft 14. Therefore, in at least one of the first and second tool rests 18, 20, the rotary tool 16 B has its own rotation axis (ie, tool.axis) as the swivel axis 3 6 of the swivel base 3 6.
  • the rotary tool 16 B has its own rotation axis (ie, tool.axis) as the swivel axis 3 6 of the swivel base 3 6.
  • the first tool rest 18 and the second tool rest 20 are radially different from each other on the swivel base 36 and the swivel axis 36a.
  • a configuration that supports linear movement in the direction (XI axis and X 2 axis) is adopted.
  • each of the first and second tool rests 1 8 and 2 0 can be replaced with a plurality of tools 1 6 Are configured as comb tooth turrets mounted in parallel, and the linear motion direction of each turret 18 and 20 on the swivel base 36 is perpendicular to the swivel axis 3 6 a and a plurality of tools 1 The direction perpendicular to the 6 parallel directions is set.
  • various types of tools 16 required by the machining program are mounted on the first and second tool rests 1 8 and 20 in advance, and each tool rest 1 8 and 2 0 according to the machining program can be used as desired. Since the tool 16 can be selected quickly and the machining operation can be performed, the cycle time can be effectively reduced.
  • the automatic lathe 10 is configured so that the feed base 3 2 that supports the swivel base 3 6 so as to be capable of swiveling on the lathe machine base 1 2 is arranged in a direction parallel to the swivel axis 3 6 a.
  • the second tool post 1 8 and 20 are installed on a lathe table 1 2 so that they can move linearly under the control of the feed control axis (Y 1 axis) different from the feed control axes (X 1 axis, X 2 axis). ing. Therefore, the desired tool 16 can be easily selected from the first and second tool rests 18 and 20 by the Y 1 axis feed operation of the feed base 3 2.
  • the main spindle 14 is parallel to the main spindle rotational axis 14 a in a direction perpendicular to the pivot axis 3 6 a of the swivel base 36 and the first and second tool rests 1 8 , 20 feed control axes (XI axis, X 2 axes) and Adopts a configuration that is installed on a lathe table 1 2 so that it can operate linearly under the control of different feed control axes (Z 1 axis). Therefore, the workpiece W can be processed in various ways by cooperating with the Z 1 axis feed operation of the main spindle 14 and the XI axis or X 2 axis feed operations of the first or second tool post 18 8, 20. it can.
  • a guide bush 48 located between the main shaft 14 and the first and second tool rests 18, 20.
  • the guide bush 48 is supported by a second column 50 extending so as to intervene between both arms 3 4 of the feed base 3 2 from the spindle mounting portion 28 that carries the spindle base 26.
  • the main shaft 14 is arranged coaxially with the rotation axis 14 a.
  • the guide bush 48 supports the work area at the tip of the workpiece W gripped by the main spindle 14 so as to center and support it so that no vibration occurs during the machining operation.
  • the guide bush 48 can have a known structure of either a fixed guide bush or a rotary guide bush. In this case, the swivel axis 36 a of the swivel base 36 is disposed close to the workpiece sending end face 48 a (FIG. 3) of the guide bush 48.
  • the automatic lathe 10 includes the back spindle 2 2 that can be disposed opposite to the spindle 14 and the back tool post 24 that moves with respect to the back spindle 2 2.
  • the rear spindle 2 2 is an auxiliary spindle that rotates by gripping a partly processed workpiece (not shown) passed from the front spindle 14 and turning the rotary axis 2 2 a. It is arranged horizontally when viewed from the installation floor of the machine base 12 and is rotatably incorporated in the rear headstock 52 via a bearing device (not shown).
  • the back main shaft 2 2 has a hollow cylindrical structure, and a chuck (for example, a collet chuck) that can firmly hold a workpiece fed from the main shaft 14 (or the guide bush 48) opposed to the front end region of the rear main shaft 2 2. (Not shown) is installed
  • the rear spindle stock 5 2 is mounted on the rear spindle mounting portion 5 4 provided on the opposite side of the spindle mounting portion 28 on the lathe machine base 12.
  • the rear spindle mounting portion 5 4 carries a feed base 5 6 that can move linearly in the vertical direction perpendicular to the rotation axis 2 2 a of the rear spindle 2 2, and the rear spindle base 5 2 It is supported so that it can move linearly in the horizontal direction parallel to the back spindle rotation axis 2 2 a.
  • the back spindle mounting part 5 4 and the feed base 5 6 include a back spindle base 5 2, a feed control axis (referred to as Y 2 axis) that is orthogonal to the back spindle rotation axis 2 2 a in a predetermined orthogonal three-axis coordinate system.
  • the back spindle drive mechanism (not shown) that moves linearly under control along the feed control axis (referred to as Z 2 axis) parallel to back spindle rotation axis 2 2 a ) Is installed.
  • the back spindle drive mechanism consists of a Y 2 axis drive source (eg, AC support motor), a Z 2 axis drive source (eg, AC servo motor), a Y 2 axis guide member (eg, slide guide), a Z 2 axis guide member ( For example, a slide guide), a feed screw device (for example, a pole screw) and the like are included.
  • the back spindle 22 is controlled over the predetermined feed stroke by the operation of the back spindle drive mechanism under the control of the Y 2 axis orthogonal to its own rotation axis 2 2 a and the parallel Z 2 axis. , Back It moves linearly with the headstock 5 2.
  • the rear tool post 24 is fixed together with the first tool post 1 8 to the tool post table 4 4 movably supported by one of the tool post support surfaces 3 8 of the swivel base 36 and the first tool post 1 8. Installed on the back side. Therefore, the back tool post 24 is synchronized with the feed operation of the first tool post 18 under the control of the X1 axis in a predetermined orthogonal three-axis coordinate system, and passes over a predetermined feed operation stroke. Reciprocates linearly.
  • the back tool post 24 has a comb-tooth tool post configuration in which a plurality of tools 16 are mounted in a parallel arrangement. In the illustrated embodiment, the back tool post 24 has various rotary tools such as milling cutters.
  • the blades 36 are fixedly held in a horizontal posture in parallel with the pivot axis 36a of the base 36 in a horizontal direction in which each blade edge is separated from the pivot axis 36a (see FIGS. 2 and 4).
  • the rear turret 2 4 is connected to the rear turret 2 4 by at least one of the Y 1 axis feed operation of the feed base 3 2 and the feed base for the rear spindle 2 2 5 6 Y 2 axis feed operation 2 4.
  • the desired tool 16 selected and indexed in step 1 is placed at an opposing angle parallel to the workpiece axis with respect to the workpiece gripped by the back spindle 2 2 by the B-axis turning operation of the turning table 3 6 on the feed table 3 2.
  • the tool tip of the tool 16 is moved in cooperation with the XI axis feed operation of the back tool post 2 4 itself on the swivel base 3 6 and the Y 2 axis and Z 2 axis feed operations of the back spindle 2 2.
  • By machining it is possible to perform machining operations on the workpiece.
  • the workpiece gripped by the back spindle 22 can be machined into a desired shape by a desired tool 16 on the back tool post 24.
  • This back surface machining can be performed simultaneously with the desired tool 16 on the first and second tool rests 18, 20 while machining the workpiece W gripped on the spindle 14.
  • the rear tool post 24 may be fixedly installed together with the second tool post 20 on the tool post table 46 that is movably supported on the other tool post support surface 40 of the swivel base 36. it can.
  • the swivel base 3 6 is placed at a position that is 90 ° different from the swivel position in Fig. 5, and the turning tool 1 6 A on the first tool post 1 8 with respect to the workpiece W Can be performed simultaneously with external turning (external rounding, etc.) using, and end face secondary machining (end face drilling, etc.) using the rotary tool 16 B on the second tool post 20.
  • Side turning (rotary drilling etc.) using rotary tool 1 6 B on the first tool post 18 at the same turning position, and internal turning using the turning tool 1 6 A on the second tool post 20 Processing (boring, etc.) can be performed simultaneously.
  • the swivel base 3 6 is arranged at the same position as the swivel position of FIG. 6, and the rotary tool 1 6 B on the first tool post 18 is used against the workpiece W.
  • the secondary side machining (cross drilling, etc.) and the secondary end face machining (end drilling, etc.) using the rotary tool 16 B on the second tool post 20 can be performed simultaneously.
  • the turning table 3 6 is arranged at an intermediate position between the respective turning positions in FIGS. 5 and 6, and the turning tool on the first tool post 18 with respect to the workpiece W.
  • External turning (external rounding, etc.) using 16 A and external turning (external rounding, etc.) using the turning tool 16 A on the second tool post 20 can be performed simultaneously.
  • the workpiece machining point of the two turning tools 16 A is slightly shifted in the workpiece axis direction, so that the outer peripheral surface of the workpiece is roughly machined by one turning tool 16 A and the other turning tool 1 6 Finishing the outer peripheral surface of the workpiece with A (for example, called a balance cut), which is effective for shortening the cycle time.
  • the swivel base 3 6 is set to the specified turning angle.
  • the workpiece W can be subjected to oblique hole machining using the rotating tool 16 B on the first or second tool post 18, 20.
  • the swivel base 3 6 is swung and fed under the B-axis control.
  • the workpiece W can be chamfered or rounded using the rotary tool 16 B on the first or second tool post 18, 20.
  • the first and second tool rests 18 and 20 are fed independently of each other on the swivel base 36 so that the machining operations of the two tools 16 can be performed. It can be carried out smoothly without affecting each other. Further, as described above, at the swivel position of the swivel base 3 6 as shown in FIGS. 5 to 7, the tool 16 on the back tool post 2 4 is used in parallel with the above-described machining operation on the work W. The desired back machining can be performed on the work gripped by the back spindle 22.
  • a machine configuration can be adopted in which a headstock 26 containing a main spindle 14 is fixedly installed on a lathe machine base 12 and the guide bush 48 is omitted.
  • the swivel base 3 6 supporting the first and second tool rests 18, 20 is provided for each of the feed base 3 2 and the column 30.
  • a feed control axis for example, Z 3 axis
  • a swivel base having tool post support surfaces that intersect at various angles is adopted, It is also possible to configure the tool post so that it can be fed in directions intersecting at various angles on the tool support surface.
  • the number of turrets installed on the swivel, tool holding type, etc. Is optional.
  • the lathe machine base 12 can be equipped with other tool rests such as an evening tool post, a control device such as an NC device, an operation panel, a tool magazine, an automatic tool changer, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

L'invention concerne un tour automatique (10) comportant une base de tour (12), une broche (14), une pluralité de porte-outil (18, 20) montés sur la base de tour, de telle sorte qu'ils peuvent devenir mobiles individuellement par rapport à la broche, et un chariot pivotant (36) pour supporter les porte-outil, de telle sorte que les porte-outil peuvent se déplacer linéairement indépendamment les uns des autres tout en étant commandés par des axes de commande d'alimentation différents les uns des autres. Le chariot pivotant est monté sur la base de tour, de telle sorte qu'il peut pivoter sur un axe (36a) coupant les directions de travail linéaires individuelles des porte-outil tout en étant commandé sur un axe de commande pivotant (B).
PCT/JP2007/065110 2006-07-27 2007-07-26 Tour automatique ayant une pluralité de porte-outil WO2008013313A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008526851A JP4997240B2 (ja) 2006-07-27 2007-07-26 複数の刃物台を備える自動旋盤

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JP2006-204758 2006-07-27
JP2006204758 2006-07-27

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Publication Number Publication Date
WO2008013313A1 true WO2008013313A1 (fr) 2008-01-31

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PCT/JP2007/065110 WO2008013313A1 (fr) 2006-07-27 2007-07-26 Tour automatique ayant une pluralité de porte-outil

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JP (1) JP4997240B2 (fr)
WO (1) WO2008013313A1 (fr)

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WO2011001517A1 (fr) * 2009-06-30 2011-01-06 ヤマザキマザック株式会社 Tour de travail composite
DE102010054099A1 (de) * 2010-12-10 2012-06-14 Marina Deitert Bearbeitungsvorrichtung
JP2013139066A (ja) * 2012-01-04 2013-07-18 Ihi Corp インペラ製造装置及びインペラの製造方法
JP2014037043A (ja) * 2012-08-20 2014-02-27 Star Micronics Co Ltd 刃物台を備えた工作機械
CN104136159A (zh) * 2012-03-26 2014-11-05 西铁城控股株式会社 机床
CN105108494A (zh) * 2015-09-12 2015-12-02 浙江特普机床制造有限公司 轮毂加工专用车床
CN105643712A (zh) * 2014-11-10 2016-06-08 佛山道格科技有限公司 一种塑胶容器打孔设备
CN105904216A (zh) * 2016-05-25 2016-08-31 张玲玲 一种高精度多轴数控机床
EP3064297A1 (fr) * 2015-03-03 2016-09-07 Tornos SA Equipement à accessoire amovible et ensemble pour tour d'usinage, et tour d'usinage à commande numérique
WO2018042832A1 (fr) * 2016-08-31 2018-03-08 シチズン時計株式会社 Machine-outil
JP2018039072A (ja) * 2016-08-31 2018-03-15 シチズン時計株式会社 工作機械
CN108817970A (zh) * 2018-09-14 2018-11-16 山东瀚业机械有限公司 一种轴类零件加工中心
EP3616836A1 (fr) * 2018-09-03 2020-03-04 AFW Holding GmbH Dispositif d'usinage destiné à l'usinage par enlèvement de copeaux d'une pièce à usiner
JP2020082300A (ja) * 2018-11-28 2020-06-04 シチズン時計株式会社 工作機械
CN112935809A (zh) * 2021-01-18 2021-06-11 深圳市正工精密五金塑胶有限公司 一种复合式自动车床

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CN108526892A (zh) * 2018-04-09 2018-09-14 广东赛纳德智能装备有限公司 一种双动平衡加工设备

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US8887360B2 (en) 2009-06-30 2014-11-18 Yamazaki Mazak Corporation Composite working lathe
EP2450134A1 (fr) * 2009-06-30 2012-05-09 Yamazaki Mazak Corporation Tour de travail composite
JP5026599B2 (ja) * 2009-06-30 2012-09-12 ヤマザキマザック株式会社 複合加工旋盤
EP2450134A4 (fr) * 2009-06-30 2013-11-13 Yamazaki Mazak Corp Tour de travail composite
CN102448643B (zh) * 2009-06-30 2013-12-11 山崎马扎克公司 复合加工车床
WO2011001517A1 (fr) * 2009-06-30 2011-01-06 ヤマザキマザック株式会社 Tour de travail composite
DE102010054099A1 (de) * 2010-12-10 2012-06-14 Marina Deitert Bearbeitungsvorrichtung
JP2013139066A (ja) * 2012-01-04 2013-07-18 Ihi Corp インペラ製造装置及びインペラの製造方法
CN104136159A (zh) * 2012-03-26 2014-11-05 西铁城控股株式会社 机床
CN104136159B (zh) * 2012-03-26 2016-04-06 西铁城控股株式会社 机床
JP2014037043A (ja) * 2012-08-20 2014-02-27 Star Micronics Co Ltd 刃物台を備えた工作機械
CN105643712A (zh) * 2014-11-10 2016-06-08 佛山道格科技有限公司 一种塑胶容器打孔设备
US10099293B2 (en) 2015-03-03 2018-10-16 Tornos Sa Equipment with a detachable accessory and assembly for a machining lathe, and machining lathe with digital control
CN105935885B (zh) * 2015-03-03 2020-10-09 托尔诺斯有限公司 加工车床的带可拆卸附件的设备和组件及数控加工车床
EP3064297A1 (fr) * 2015-03-03 2016-09-07 Tornos SA Equipement à accessoire amovible et ensemble pour tour d'usinage, et tour d'usinage à commande numérique
CN105935885A (zh) * 2015-03-03 2016-09-14 托尔诺斯有限公司 加工车床的带可拆卸附件的设备和组件及数控加工车床
CN105108494A (zh) * 2015-09-12 2015-12-02 浙江特普机床制造有限公司 轮毂加工专用车床
CN105904216B (zh) * 2016-05-25 2017-10-20 张玲玲 一种高精度多轴数控机床
CN105904216A (zh) * 2016-05-25 2016-08-31 张玲玲 一种高精度多轴数控机床
US10946450B2 (en) 2016-08-31 2021-03-16 Citizen Watch Co., Ltd. Machine tool
CN109641278A (zh) * 2016-08-31 2019-04-16 西铁城时计株式会社 机床
WO2018042832A1 (fr) * 2016-08-31 2018-03-08 シチズン時計株式会社 Machine-outil
US10894292B2 (en) 2016-08-31 2021-01-19 Citizen Watch Co., Ltd. Machine tool
JP2018039072A (ja) * 2016-08-31 2018-03-15 シチズン時計株式会社 工作機械
EP3616836A1 (fr) * 2018-09-03 2020-03-04 AFW Holding GmbH Dispositif d'usinage destiné à l'usinage par enlèvement de copeaux d'une pièce à usiner
WO2020048892A1 (fr) * 2018-09-03 2020-03-12 Afw Holding Gmbh Dispositif d'usinage servant à usiner par enlèvement de copeaux une pièce
CN113272099A (zh) * 2018-09-03 2021-08-17 Afw控股有限公司 用于加工工件的加工设备
CN108817970A (zh) * 2018-09-14 2018-11-16 山东瀚业机械有限公司 一种轴类零件加工中心
CN108817970B (zh) * 2018-09-14 2024-06-11 山东瀚业机械有限公司 一种轴类零件加工中心
JP2020082300A (ja) * 2018-11-28 2020-06-04 シチズン時計株式会社 工作機械
JP7140651B2 (ja) 2018-11-28 2022-09-21 シチズン時計株式会社 工作機械
CN112935809A (zh) * 2021-01-18 2021-06-11 深圳市正工精密五金塑胶有限公司 一种复合式自动车床

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