JP6727190B2 - Machine tool and control device for this machine tool - Google Patents
Machine tool and control device for this machine tool Download PDFInfo
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- JP6727190B2 JP6727190B2 JP2017508312A JP2017508312A JP6727190B2 JP 6727190 B2 JP6727190 B2 JP 6727190B2 JP 2017508312 A JP2017508312 A JP 2017508312A JP 2017508312 A JP2017508312 A JP 2017508312A JP 6727190 B2 JP6727190 B2 JP 6727190B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/013—Control or regulation of feed movement
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Turning (AREA)
- Numerical Control (AREA)
- Automatic Control Of Machine Tools (AREA)
Description
本発明は、切削加工時の切屑を順次分断しながらワークの加工を行う工作機械及びこの工作機械の制御装置に関する。 The present invention relates to a machine tool for machining a workpiece while sequentially cutting chips during cutting and a control device for the machine tool.
従来、ワークを保持するワーク保持手段と、前記ワークを切削加工する切削工具を保持する刃物台と、前記ワーク保持手段と前記刃物台との相対移動によって、前記ワークに対して前記切削工具を所定の加工送り方向に送り動作させる送り手段と、前記切削工具が前記加工送り方向に沿って往復振動しながら加工送り方向に送られるように、前記ワーク保持手段と前記刃物台とを相対的に振動させる振動手段と、前記ワークと前記切削工具を相対的に回転させる回転手段とを備えた工作機械が知られている（例えば、特許文献１参照）。
この工作機械の制御装置は、前記回転手段と、前記送り手段と、前記振動手段とを駆動制御し、前記ワークと前記切削工具との相対回転と、前記ワークに対する前記切削工具の前記加工送り方向への前記往復振動を伴う送り動作とによって前記工作機械に、前記ワークの加工を実行させる。Conventionally, a work holding means for holding a work, a tool rest for holding a cutting tool for cutting the work, and a relative movement of the work holding means and the tool rest to determine the cutting tool with respect to the work. Of the feed means for feeding in the machining feed direction, and the work holding means and the tool rest relatively vibrate so that the cutting tool is fed in the machining feed direction while reciprocally vibrating along the machining feed direction. There is known a machine tool including a vibrating unit that causes the work and a rotating unit that relatively rotates the work and the cutting tool (for example, see Patent Document 1).
The control device of this machine tool drives and controls the rotating means, the feeding means, and the vibrating means, and the relative rotation between the work and the cutting tool, and the machining feed direction of the cutting tool with respect to the work. The machine tool is caused to perform machining of the workpiece by the feeding operation accompanied by the reciprocating vibration.
上述した従来の工作機械では、切削工具を加工送り方向に往復振動させながらワークを切削加工しているときに切削工具が常にワークと接触しているため、切削工具の刃先に負荷がかかる場合があった。 In the conventional machine tool described above, the cutting tool is always in contact with the work while the work is being machined while reciprocally vibrating the cutting tool in the machining feed direction, so that the cutting edge of the cutting tool may be loaded. there were.
そこで、本発明は、前述したような従来技術の問題を解決するものであって、すなわち、本発明の目的は、切屑を分断するとともに切削工具の負荷を軽減できる工作機械及びこの工作機械の制御装置を提供することである。 Therefore, the present invention is to solve the above-mentioned problems of the prior art, that is, an object of the present invention is to divide a chip and reduce the load of a cutting tool, and a control of this machine tool. It is to provide a device.
本請求項１に係る発明は、ワークを保持するワーク保持手段と、前記ワークを切削加工する切削工具を保持する刃物台と、前記ワーク保持手段と刃物台との相対移動によってワークに対して切削工具を所定の加工送り方向に送り動作させる送り手段と、前記ワーク保持手段と刃物台とを加工送り方向に沿って相対的に往復振動させる振動手段と、前記ワークと切削工具とを相対的に回転させる回転手段とを備え、前記往復振動の往動時の切削加工部分と、復動時の切削加工部分とを重複させて、前記切削工具を加工送り方向に沿って往復振動させる振動切削を行いながら加工送り方向に送るように、振動手段と回転手段とが連係して駆動制御され、前記ワークと前記切削工具との相対回転と、前記ワークに対する前記切削工具の前記加工送り方向への前記往復振動を伴う送り動作とによってワークの加工を実行させる工作機械であって、前記振動切削中の前記往動時と復動時の切削加工部分が重複する範囲の前記切削工具の送り区間内に、前記切削工具と前記ワークとを離間させた状態で、前記切削工具が送り動作される離間送り区間を設ける構成としたことにより、前述した課題を解決するものである。
In the invention according to claim 1, a work holding means for holding a work, a tool rest for holding a cutting tool for cutting the work, and cutting relative to the work by relative movement of the work holding means and the tool rest. A feeding means for feeding the tool in a predetermined machining feed direction, a vibrating means for relatively reciprocally vibrating the work holding means and the tool rest along the machining feed direction, and the work and the cutting tool relative to each other. And a rotating means for rotating, wherein the cutting processing portion at the time of forward movement of the reciprocating vibration and the cutting processing portion at the time of returning movement are overlapped, and vibration cutting is performed to cause the cutting tool to reciprocally vibrate along the processing feed direction. The vibration means and the rotation means are drive-controlled in cooperation with each other so as to feed in the machining feed direction while performing, relative rotation between the work and the cutting tool, and the machining tool in the machining feed direction with respect to the work. A machine tool for performing machining of a work by a feed operation accompanied by reciprocating vibration, wherein the machining section in the forward movement and the backward movement during the vibration cutting overlaps within the feed section of the cutting tool. The above-described problem is solved by providing a separation feed section in which the cutting tool is fed in a state where the cutting tool and the work are separated from each other.
本請求項２に係る発明は、請求項１に記載された工作機械の構成に加えて、前記切削工具と前記ワークとを、前記切削工具の切り込み方向に沿って移動させることによって、前記切削工具と前記ワークとの離間が行われる構成としたことにより、前述した課題をさらに解決するものである。 In addition to the configuration of the machine tool described in claim 1, the invention according to claim 2 moves the cutting tool and the workpiece along a cutting direction of the cutting tool, thereby cutting the cutting tool. The above-mentioned problems are further solved by adopting a configuration in which the work and the work are separated from each other.
本請求項３に係る発明は、請求項１または請求項２に記載された工作機械の構成に加えて、前記離間送り区間が、前記往動時と復動時の切削加工部分とが重複する範囲の前記切削工具の送り区間の全体を占めるように設定される構成としたことにより、前述した課題をさらに解決するものである。 In the invention according to claim 3, in addition to the configuration of the machine tool according to claim 1 or claim 2, the separated feed section overlaps with a cutting portion during the forward movement and during the backward movement. The above-mentioned problem is further solved by adopting a configuration in which it is set so as to occupy the entire feed section of the cutting tool in the range.
本請求項４に係る発明は、ワークを保持するワーク保持手段と、前記ワークを切削加工する切削工具を保持する刃物台と、前記ワーク保持手段と刃物台との相対移動によってワークに対して切削工具を所定の加工送り方向に送り動作させる送り手段と、前記ワーク保持手段と刃物台とを加工送り方向に沿って相対的に往復振動させる振動手段と、前記ワークと切削工具とを相対的に回転させる回転手段とを備えた工作機械に設けられ、前記往復振動の往動時の切削加工部分と、復動時の切削加工部分とを重複させて、前記切削工具を加工送り方向に沿って往復振動させる振動切削を行いながら加工送り方向に送るように振動手段と回転手段とを連係して駆動制御し、前記ワークと前記切削工具との相対回転と、前記ワークに対する前記切削工具の前記加工送り方向への前記往復振動を伴う送り動作とによって、前記加工送り方向の往動時の切削加工部分と、復動時の切削加工部分とが重複するようにワークの加工を実行させる工作機械の制御装置であって、前記振動切削中の前記往動時と復動時の切削加工部分が重複する範囲の前記切削工具の送り区間内に、前記切削工具と前記ワークとを離間させた状態で、前記切削工具が送り動作される離間送り区間を設ける構成としたことにより、前述した課題を解決するものである。 In the invention according to claim 4, a work holding means for holding a work, a tool rest for holding a cutting tool for cutting the work, and cutting relative to the work by relative movement of the work holding means and the tool rest. A feeding means for feeding the tool in a predetermined machining feed direction, a vibrating means for relatively reciprocally vibrating the work holding means and the tool rest along the machining feed direction, and the work and the cutting tool relative to each other. The cutting tool is provided in a machine tool provided with a rotating means for rotating, and the cutting processing portion at the time of forward movement of the reciprocating vibration and the cutting processing portion at the time of returning movement are overlapped to move the cutting tool along the processing feed direction. Driving and controlling the vibrating means and the rotating means in cooperation with each other so as to feed in the machining feed direction while performing reciprocating vibration vibration cutting, relative rotation between the work and the cutting tool, and the machining of the cutting tool with respect to the work. A machine tool that performs machining of a workpiece by a feeding operation accompanied by the reciprocating vibration in the feeding direction so that a cutting portion in the forward movement in the machining feeding direction and a cutting portion in the backward movement overlap with each other. A control device, in a state in which the cutting tool and the work are separated from each other within the feed section of the cutting tool in a range in which the cutting portions during the forward movement and the backward movement during the vibration cutting overlap. The above-mentioned problem is solved by providing the separated feed section in which the cutting tool is fed.
本請求項１に係る発明の工作機械によれば、前記往動時と復動時の切削加工部分とが重複する範囲の前記切削工具の送り区間内に、前記切削工具と前記ワークとを離間させた状態で、前記切削工具が送り動作される離間送り区間が設けられ、該離間送り区間では前記切削工具とワークとが離間し、切削工具がワークに接触していないため、切屑を分断する切削加工を妨げることなく、切削工具の負荷を軽減することができる。 According to the machine tool of the invention according to claim 1, the cutting tool and the work are separated from each other within the feed section of the cutting tool in a range in which the cutting portions during the forward movement and the backward movement overlap. In this state, a separation feed section is provided in which the cutting tool is fed, and the cutting tool and the work are separated in the separation feed section, and the cutting tool is not in contact with the work, so that chips are divided. The load on the cutting tool can be reduced without disturbing the cutting process.
本請求項２に係る発明の工作機械によれば、請求項１に係る発明が奏する効果に加えて、前記切削工具と前記ワークとの離間を、前記切削工具と前記ワークとを、前記切削工具の切り込み方向に沿って移動させることによって容易に行うことができる。 According to the machine tool of the invention of claim 2, in addition to the effect of the invention of claim 1, the cutting tool and the work are separated from each other, the cutting tool and the work are separated from each other, It can be easily performed by moving along the cutting direction.
本請求項３に係る発明の工作機械によれば、請求項１または請求項２に係る発明が奏する効果に加えて、前記往動時と復動時の切削加工部分とが重複する範囲の前記切削工具の送り区間の全体に亘って切削工具がワークに接触しないため、ワーク加工面に対する前記切削工具と前記ワークとの接触による悪影響を防止することができる。 According to the machine tool of the invention according to claim 3, in addition to the effect achieved by the invention according to claim 1 or 2, in the range in which the cutting portions during the forward movement and the backward movement overlap each other. Since the cutting tool does not come into contact with the work over the entire feed section of the cutting tool, it is possible to prevent an adverse effect due to the contact between the cutting tool and the work on the work surface.
本請求項４に係る発明の工作機械の制御装置によれば、工作機械の制御装置において、請求項１に係る発明が奏する効果と同様の効果を得ることができる。 According to the machine tool control apparatus of the invention according to the fourth aspect, the same effect as that of the invention according to the first aspect can be obtained in the machine tool control apparatus.
本発明の工作機械及びこの工作機械の制御装置は、振動切削中の往動時と復動時の切削加工部分が重複する範囲の切削工具の送り区間内に、切削工具とワークとを離間させた状態で、切削工具が送り動作される離間送り区間を設ける構成としたことにより、切屑を分断するとともに切削工具がワークから離間している間は切削工具がワークに接触しないことによる切削工具の負荷を軽減するものであれば、その具体的な実施態様は、如何なるものであっても構わない。 A machine tool of the present invention and a control device for this machine tool separate a cutting tool and a workpiece in a cutting tool feed section in a range where cutting portions during forward movement and backward movement during vibration cutting overlap. In the state where the cutting tool is fed, the separated feed section is provided to cut the chips and prevent the cutting tool from coming into contact with the work while the cutting tool is separated from the work. Any specific embodiment may be used as long as it reduces the load.
図１は、本発明の第１実施例の制御装置Ｃを備えた工作機械１００の概略を示す図である。
工作機械１００は、回転手段としての主軸１１０と、刃物台としての切削工具台１３０Ａとを備えている。
主軸１１０の先端にはワーク保持手段としてのチャック１２０が設けられている。
チャック１２０を介して主軸１１０にワークＷが保持される。
主軸１１０は、図示しない主軸モータの動力によって回転駆動されるように主軸台１１０Ａに支持されている。FIG. 1 is a schematic diagram of a machine tool 100 including a control device C according to the first embodiment of the present invention.
The machine tool 100 includes a spindle 110 as a rotating means and a cutting tool stand 130A as a tool rest.
A chuck 120 as a work holding means is provided at the tip of the main shaft 110.
The work W is held on the spindle 110 via the chuck 120.
The spindle 110 is supported by a headstock 110A so as to be rotationally driven by the power of a spindle motor (not shown).
主軸台１１０Ａは、工作機械１００のベッド側に、Ｚ軸方向送り機構１６０によって主軸１１０の軸線方向となるＺ軸方向に移動自在に搭載されている。
主軸１１０は、主軸台１１０Ａを介してＺ軸方向送り機構１６０によって、前記Ｚ軸方向に移動する。
Ｚ軸方向送り機構１６０は、主軸１１０をＺ軸方向に移動させる主軸移動機構を構成している。The headstock 110A is mounted on the bed side of the machine tool 100 by a Z-axis feed mechanism 160 so as to be movable in the Z-axis direction, which is the axial direction of the spindle 110.
The spindle 110 is moved in the Z-axis direction by the Z-axis feed mechanism 160 via the headstock 110A.
The Z-axis feed mechanism 160 constitutes a spindle moving mechanism that moves the spindle 110 in the Z-axis direction.
Ｚ軸方向送り機構１６０は、前記ベッド等のＺ軸方向送り機構１６０の固定側と一体的なベース１６１と、ベース１６１に設けられたＺ軸方向に延びるＺ軸方向ガイドレール１６２とを備えている。
Ｚ軸方向ガイドレール１６２に、Ｚ軸方向ガイド１６４を介してＺ軸方向送りテーブル１６３がスライド自在に支持されている。
Ｚ軸方向送りテーブル１６３側にリニアサーボモータ１６５の可動子１６５ａが設けられ、ベース１６１側にリニアサーボモータ１６５の固定子１６５ｂが設けられている。The Z-axis feed mechanism 160 includes a base 161 that is integral with the fixed side of the Z-axis feed mechanism 160 such as the bed, and a Z-axis guide rail 162 provided on the base 161 and extending in the Z-axis direction. There is.
A Z-axis feed table 163 is slidably supported on the Z-axis guide rail 162 via a Z-axis guide 164.
A mover 165a of the linear servo motor 165 is provided on the Z-axis direction feed table 163 side, and a stator 165b of the linear servo motor 165 is provided on the base 161 side.
Ｚ軸方向送りテーブル１６３に主軸台１１０Ａが搭載され、リニアサーボモータ１６５の駆動によってＺ軸方向送りテーブル１６３が、Ｚ軸方向に移動駆動される。
Ｚ軸方向送りテーブル１６３の移動によって主軸台１１０ＡがＺ軸方向に移動し、主軸１１０のＺ軸方向への移動が行われる。The headstock 110A is mounted on the Z-axis direction feed table 163, and the Z-axis direction feed table 163 is moved and driven in the Z-axis direction by driving the linear servomotor 165.
The headstock 110A moves in the Z-axis direction by the movement of the Z-axis direction feed table 163, and the spindle 110 moves in the Z-axis direction.
切削工具台１３０Ａには、ワークＷを旋削加工するバイト等の切削工具１３０が装着されている。
切削工具台１３０Ａは、工作機械１００のベッド側に、Ｘ軸方向送り機構１５０及び図示しないＹ軸方向送り機構によって、前記Ｚ軸方向に直交するＸ軸方向と、前記Ｚ軸方向及びＸ軸方向に直交するＹ軸方向とに移動自在に設けられている。
Ｘ軸方向送り機構１５０とＹ軸方向送り機構とによって、切削工具台１３０Ａを主軸１１０に対して前記Ｘ軸方向及びＹ軸方向に移動させる刃物台移動機構が構成されている。A cutting tool 130 such as a cutting tool for turning the work W is mounted on the cutting tool base 130A.
The cutting tool base 130A is provided on the bed side of the machine tool 100 by the X-axis direction feed mechanism 150 and a Y-axis direction feed mechanism (not shown), the X-axis direction orthogonal to the Z-axis direction, the Z-axis direction and the X-axis direction. It is provided so as to be movable in the Y-axis direction orthogonal to.
The X-axis direction feed mechanism 150 and the Y-axis direction feed mechanism constitute a tool rest moving mechanism that moves the cutting tool rest 130A in the X-axis direction and the Y-axis direction with respect to the spindle 110.
Ｘ軸方向送り機構１５０は、Ｘ軸方向送り機構１５０の固定側と一体的なベース１５１と、ベース１５１に設けられたＸ軸方向に延びるＸ軸方向ガイドレール１５２とを備えている。
Ｘ軸方向ガイドレール１５２に、Ｘ軸方向ガイド１５４を介してＸ軸方向送りテーブル１５３がスライド自在に支持されている。The X-axis direction feed mechanism 150 includes a base 151 that is integral with the fixed side of the X-axis direction feed mechanism 150, and an X-axis direction guide rail 152 provided on the base 151 and extending in the X-axis direction.
An X-axis direction feed table 153 is slidably supported by an X-axis direction guide rail 152 via an X-axis direction guide 154.
Ｘ軸方向送りテーブル１５３側にリニアサーボモータ１５５の可動子１５５ａが設けられ、ベース１５１側にリニアサーボモータ１５５の固定子１５５ｂが設けられている。
リニアサーボモータ１５５の駆動によってＸ軸方向送りテーブル１５３が、Ｘ軸方向に移動駆動される。
なお、Ｙ軸方向送り機構は、Ｘ軸方向送り機構１５０をＹ軸方向に配置したものであり、Ｘ軸方向送り機構１５０と同様の構造であるため、構造についての詳細な説明は割愛する。A mover 155a of the linear servo motor 155 is provided on the X-axis direction feed table 153 side, and a stator 155b of the linear servo motor 155 is provided on the base 151 side.
By driving the linear servo motor 155, the X-axis direction feed table 153 is moved and driven in the X-axis direction.
Note that the Y-axis direction feed mechanism has the X-axis direction feed mechanism 150 arranged in the Y-axis direction and has the same structure as the X-axis direction feed mechanism 150, and therefore a detailed description of the structure is omitted.
図１においては、図示しないＹ軸方向送り機構を介してＸ軸方向送り機構１５０を前記ベッド側に搭載し、Ｘ軸方向送りテーブル１５３に切削工具台１３０Ａが搭載されている。
切削工具台１３０Ａは、Ｘ軸方向送りテーブル１５３の移動駆動によってＸ軸方向に移動し、Ｙ軸方向送り機構が、Ｙ軸方向に対して、Ｘ軸方向送り機構１５０と同様の動作をすることによって、Ｙ軸方向に移動する。In FIG. 1, an X-axis direction feed mechanism 150 is mounted on the bed side via a Y-axis direction feed mechanism (not shown), and a cutting tool base 130A is mounted on an X-axis direction feed table 153.
The cutting tool base 130A moves in the X-axis direction by the movement drive of the X-axis direction feed table 153, and the Y-axis direction feed mechanism performs the same operation as the X-axis direction feed mechanism 150 in the Y-axis direction. Moves in the Y-axis direction.
なお、図示しないＹ軸方向送り機構を、Ｘ軸方向送り機構１５０を介して前記ベッド側に搭載し、Ｙ軸方向送り機構側に切削工具台１３０Ａを搭載してもよく、Ｙ軸方向送り機構とＸ軸方向送り機構１５０とによって切削工具台１３０ＡをＸ軸方向及びＹ軸方向に移動させる構造は従来公知であるため、詳細な説明及び図示は割愛する。 A Y-axis feed mechanism (not shown) may be mounted on the bed side via the X-axis feed mechanism 150, and the cutting tool table 130A may be mounted on the Y-axis feed mechanism side. Since the structure for moving the cutting tool table 130A in the X-axis direction and the Y-axis direction by the X-axis direction feed mechanism 150 and the X-axis direction feed mechanism 150 is conventionally known, detailed description and illustration thereof will be omitted.
前記刃物台移動機構（Ｘ軸方向送り機構１５０とＹ軸方向送り機構）と前記主軸移動機構（Ｚ軸方向送り機構１６０）とが協動し、Ｘ軸方向送り機構１５０とＹ軸方向送り機構によるＸ軸方向とＹ軸方向への切削工具台１３０Ａの移動と、Ｚ軸方向送り機構１６０による主軸台１１０Ａ（主軸１１０）のＺ軸方向への移動によって、切削工具台１３０Ａに装着されている切削工具１３０は、ワークＷに対して相対的に任意の加工送り方向に送られる。 The tool post moving mechanism (the X-axis direction feed mechanism 150 and the Y-axis direction feed mechanism) and the main-axis moving mechanism (Z-axis direction feed mechanism 160) cooperate to form the X-axis direction feed mechanism 150 and the Y-axis direction feed mechanism. The cutting tool base 130A is mounted on the cutting tool base 130A by the movement of the cutting tool base 130A in the X-axis direction and the Y-axis direction and the movement of the headstock 110A (main shaft 110) in the Z-axis direction by the Z-axis feed mechanism 160. The cutting tool 130 is fed relative to the work W in an arbitrary machining feed direction.
前記主軸移動機構と前記刃物台移動機構とから構成される送り手段により、切削工具１３０を、ワークＷに対して相対的に任意の加工送り方向に送ることによって、図２に示すように、ワークＷは、前記切削工具１３０により任意の形状に切削加工される。 As shown in FIG. 2, by feeding the cutting tool 130 in an arbitrary machining feed direction relative to the work W by a feed means composed of the spindle moving mechanism and the tool rest moving mechanism, as shown in FIG. The W is cut into an arbitrary shape by the cutting tool 130.
なお、本実施形態においては、主軸台１１０Ａと切削工具台１３０Ａの両方を移動するように構成しているが、主軸台１１０Ａを工作機械１００のベッド側に移動しないように固定し、刃物台移動機構を、切削工具台１３０ＡをＸ軸方向、Ｙ軸方向、Ｚ軸方向に移動させるように構成してもよい。
この場合、前記送り手段が、切削工具台１３０ＡをＸ軸方向、Ｙ軸方向、Ｚ軸方向に移動させる刃物台移動機構から構成され、固定的に位置決めされて回転駆動される主軸１１０に対して、切削工具台１３０Ａを移動させることによって、前記切削工具１３０をワークＷに対して加工送り動作させることができる。In the present embodiment, both the headstock 110A and the cutting tool base 130A are configured to move, but the headstock 110A is fixed so as not to move to the bed side of the machine tool 100, and the tool rest movement is performed. The mechanism may be configured to move the cutting tool base 130A in the X-axis direction, the Y-axis direction, and the Z-axis direction.
In this case, the feeding means includes a tool rest moving mechanism that moves the cutting tool base 130A in the X-axis direction, the Y-axis direction, and the Z-axis direction, and is fixedly positioned with respect to the main shaft 110 that is rotationally driven. By moving the cutting tool base 130A, the cutting tool 130 can be processed and fed to the work W.
また、切削工具台１３０Ａを工作機械１００のベッド側に移動しないように固定し、主軸移動機構を、主軸台１１０ＡをＸ軸方向、Ｙ軸方向、Ｚ軸方向に移動させるように構成してもよい。
この場合、前記送り手段が、主軸台１１０ＡをＸ軸方向、Ｙ軸方向、Ｚ軸方向に移動させる主軸台移動機構から構成され、固定的に位置決めされる切削工具台１３０Ａに対して、主軸台１１０Ａを移動させることによって、前記切削工具１３０をワークＷに対して加工送り動作させることができる。
また、本実施例では、切削工具１３０に対してワークＷを回転させる構成としたが、ワークＷに対して切削工具１３０を回転させる構成としてもよい。Further, the cutting tool base 130A is fixed so as not to move to the bed side of the machine tool 100, and the spindle moving mechanism is configured to move the spindle stock 110A in the X-axis direction, the Y-axis direction, and the Z-axis direction. Good.
In this case, the feeding means includes a headstock moving mechanism that moves the headstock 110A in the X-axis direction, the Y-axis direction, and the Z-axis direction, and the headstock is different from the headstock of the cutting tool stand 130A that is fixedly positioned. By moving 110A, the cutting tool 130 can be operated to feed the work W.
Further, in the present embodiment, the work W is rotated with respect to the cutting tool 130, but the cutting tool 130 may be rotated with respect to the work W.
主軸１１０の回転、Ｚ軸方向送り機構１６０、Ｘ軸方向送り機構１５０、Ｙ軸方向送り機構は、制御装置Ｃが有する制御部Ｃ１によって駆動制御される。
制御部Ｃ１は、各送り機構を振動手段として、各々対応する移動方向に沿って往復振動させながら、主軸台１１０Ａ又は切削工具台１３０Ａを各々の方向に移動させるように制御している。The rotation of the main shaft 110, the Z-axis direction feed mechanism 160, the X-axis direction feed mechanism 150, and the Y-axis direction feed mechanism are drive-controlled by a controller C1 included in the controller C.
The control unit C1 controls each feed mechanism as a vibrating means to move the headstock 110A or the cutting tool base 130A in each direction while reciprocally vibrating along the corresponding movement direction.
各送り機構は、制御部Ｃ１の制御により、図３に示すように、主軸１１０又は切削工具台１３０Ａを、１回の往復振動において、所定の前進量だけ前進（往動）移動してから所定の後退量だけ後退（復動）移動し、その差の進行量だけ各移動方向に移動させ、協動してワークＷに対して前記切削工具１３０を前記加工送り方向に送る。 Under the control of the controller C1, each feed mechanism moves the spindle 110 or the cutting tool base 130A forward (forward) by a predetermined forward amount in one reciprocating vibration, and then moves the predetermined amount. By a backward movement amount (backward movement), and a moving amount of the difference is moved in each movement direction, and the cutting tool 130 is fed to the work W in the machining feed direction in cooperation with each other.
工作機械１００は、Ｚ軸方向送り機構１６０、Ｘ軸方向送り機構１５０、Ｙ軸方向送り機構により、切削工具１３０が前記加工送り方向に沿った往復振動しながら、主軸１回転分、すなわち、主軸位相０°から３６０°まで変化したときの前記進行量の合計を送り量として、加工送り方向に送られることによって、ワークＷの加工を行う。 In the machine tool 100, the Z-axis direction feed mechanism 160, the X-axis direction feed mechanism 150, and the Y-axis direction feed mechanism cause the cutting tool 130 to oscillate reciprocally along the machining feed direction, while the spindle rotates one revolution, that is, the spindle. The workpiece W is machined by being fed in the machining feed direction with the total amount of progress when the phase changes from 0° to 360° as the feed amount.
ワークＷが回転した状態で、主軸台１１０Ａ（主軸１１０）又は切削工具台１３０Ａ（切削工具１３０）が、往復振動しながら移動し、切削工具１３０によって、ワークＷを所定の形状に外形切削加工する場合、ワークＷの周面は、図４に示すように、正弦曲線状に切削される。
なお、正弦曲線状の波形の谷を通過する仮想線（１点鎖線）において、主軸位相０°から３６０°まで変化したときの位置の変化量が、前記送り量を示す。
図４に示されるように、ワークＷの１回転当たりの主軸台１１０Ａ（主軸１１０）又は切削工具台１３０Ａの振動数Ｎが、３．５回（振動数Ｎ＝３．５）を例に説明する。In the state where the work W is rotated, the headstock 110A (spindle 110) or the cutting tool base 130A (cutting tool 130) moves while reciprocally oscillating, and the work W is contour-cut into a predetermined shape by the cutting tool 130. In this case, the peripheral surface of the work W is cut into a sinusoidal shape as shown in FIG.
In the imaginary line (one-dot chain line) passing through the valley of the sinusoidal waveform, the amount of change in position when the spindle phase changes from 0° to 360° indicates the feed amount.
As shown in FIG. 4, the vibration frequency N of the headstock 110A (spindle 110) or the cutting tool base 130A per rotation of the work W is 3.5 times (frequency N=3.5) as an example. To do.
この場合、ｎ＋１回転目（ｎは１以上の整数）の切削工具１３０により旋削されるワーク周面形状の位相の谷の最低点（切削工具１３０によって送り方向に最も切削された点となる点線波形グラフの山の頂点）の位置が、ｎ回転目の切削工具１３０により旋削された形状の位相の谷の最低点（実線波形グラフの山の頂点）の位置に対して、主軸位相方向（グラフの横軸方向）でずれる。 In this case, the lowest point of the valley of the phase of the work peripheral surface shape to be turned by the cutting tool 130 at the (n+1)th rotation (n is an integer of 1 or more) (the dotted line waveform that is the point most cut in the feed direction by the cutting tool 130). The position of the peak of the peak of the graph is relative to the position of the lowest point of the valley of the phase of the shape turned by the cutting tool 130 at the n-th rotation (the peak of the peak of the solid waveform graph) in the main axis phase direction (of the graph). It shifts in the horizontal axis direction).
これにより、切削工具１３０の往動時の切削加工部分と、復動時の切削加工部分とが一部重複し、ワーク周面のｎ＋１回転目の切削部分に、ｎ回転目に切削済みの部分が含まれ、振動切削中に加工送り方向において切削工具１３０が、ワークＷの切削済みの部分となる加工済み面上を通過することによってワークＷを切削しない空振り動作が生じる。
切削加工時にワークＷから生じる切屑は、前記空振り動作によって順次分断される。
工作機械１００は、切削工具１３０の切削送り方向に沿った前記往復振動によって切屑を分断しながら、ワークＷの外形切削加工を円滑に行うことができる。As a result, a part of the cutting tool 130 when the cutting tool moves forward and a part of the cutting tool when returning part partially overlaps with each other. During the vibration cutting, the cutting tool 130 passes over the machined surface, which is the machined part of the work W, in the machining feed direction, so that the idling motion of not cutting the work W occurs.
The chips generated from the work W during cutting are sequentially divided by the idling operation.
The machine tool 100 can smoothly perform the outer shape cutting process of the work W while dividing the chips by the reciprocating vibration along the cutting feed direction of the cutting tool 130.
切削工具１３０の前記往復振動によって切屑を順次分断する場合、ワーク周面のｎ＋１回転目の切削部分に、ｎ回転目に切削済みの部分が含まれていればよい。
言い換えると、ワーク周面のｎ＋１回転目（ｎは１以上の整数）における復動時の切削工具１３０の軌跡が、ワーク周面のｎ回転目における切削工具１３０の軌跡まで到達すればよい。
図４に示されるように、ｎ＋１回転目とｎ回転目のワークＷにおける切削工具１３０により旋削される形状の位相を必ずしも１８０°反転させる必要はない。When the chips are sequentially divided by the reciprocating vibration of the cutting tool 130, the cutting portion at the (n+1)th rotation of the work peripheral surface may include the portion already cut at the nth rotation.
In other words, the trajectory of the cutting tool 130 at the time of the n+1th rotation (n is an integer of 1 or more) of the work peripheral surface at the time of the backward movement should reach the trajectory of the cutting tool 130 at the nth rotation of the workpiece peripheral surface.
As shown in FIG. 4, the phase of the shape to be turned by the cutting tool 130 on the work W at the n+1th rotation and the work at the nth rotation does not necessarily need to be inverted by 180°.
例えば、振動数Ｎは、１．１や１．２５、２．６、３．７５等とすることができる。
ワークＷの１回転で１回より少ない振動（０＜振動数Ｎ＜１．０）を行うように設定することもできる。
この場合、１振動に対して１回転以上主軸１１０が回転する。For example, the frequency N can be 1.1, 1.25, 2.6, 3.75, or the like.
It is also possible to set such that one rotation of the work W causes less than one vibration (0<frequency N<1.0).
In this case, the main shaft 110 rotates for one rotation or more for one vibration.
工作機械１００において、制御部Ｃ１による動作指令は、所定の指令時間単位毎で行われる。
主軸台１１０Ａ（主軸１１０）又は切削工具台１３０Ａ（切削工具１３０）の往復振動は、前記指令時間単位に基づく所定の周波数で動作が可能となる。
例えば、制御部Ｃ１によって１秒間に２５０回の指令を送ることが可能な工作機械１００の場合、制御部Ｃ１による動作指令は、１÷２５０＝４（ｍｓ）周期（指令時間単位毎）で行われる。In the machine tool 100, the operation command from the control unit C1 is issued for each predetermined command time unit.
The reciprocating vibration of the headstock 110A (spindle 110) or the cutting tool base 130A (cutting tool 130) can be operated at a predetermined frequency based on the command time unit.
For example, in the case of the machine tool 100 capable of sending a command 250 times per second by the control unit C1, the operation command by the control unit C1 is performed in 1÷250=4 (ms) cycle (each command time unit). Be seen.
本実施例の制御部Ｃ１は、ワークＷに対して所定の切り込み量での振動切削中の空振り動作中に、切り込み方向に沿って切削工具１３０がワークＷの加工済み面であるワーク加工面Ｗ１から離間するように往復振動させる。
例えば、加工送り方向がＺ軸方向の場合、空振り動作中にワーク径方向であるＸ軸方向において切削工具１３０がワークＷの加工済み面であるワーク加工面Ｗ１から離間するように往復振動させる。
すなわち、前記往動時と復動時の切削加工部分が重複する範囲の切削工具１３０の送り区間Ｓ内に、切削工具１３０とワークＷとを離間させた状態で、切削工具１３０が送り動作される離間送り区間を設けるように構成されている。The control unit C1 of the present embodiment, the workpiece machining surface W1 which is the machined surface of the workpiece W by the cutting tool 130 along the cutting direction during the idling operation during the vibration cutting with a predetermined cutting amount with respect to the workpiece W. It is reciprocally oscillated so as to be separated from.
For example, when the machining feed direction is the Z-axis direction, the cutting tool 130 is reciprocally oscillated in the X-axis direction, which is the radial direction of the workpiece, so as to separate from the workpiece machining surface W1 that is the machined surface of the workpiece W during the idling operation.
That is, the cutting tool 130 is fed in the feeding section S of the cutting tool 130 in a range where the cutting portions in the forward movement and in the backward movement overlap, with the cutting tool 130 and the work W being separated from each other. It is configured to provide a separate feed section.
図５に示されるように、往復振動の復動時に切削工具１３０が送り区間Ｓ内に位置する矢印Ａ３の終了端から、制御部Ｃ１が、切削工具１３０を、矢印Ａ４のように送り区間Ｓの空振り動作の範囲内で切り込み方向に沿ってワーク加工面Ｗ１から離間する方向へ移動させて、ワークＷから所定の距離を離間させ、矢印Ａ１のように切り込み方向に沿ってワーク加工面Ｗ１に向かって切削工具１３０の刃先１３１が所定の切り込み量を切り込む位置に移動させ、前記送り区間Ｓの経路上の所定の位置でワーク加工面Ｗ１に接触させる。
矢印Ａ１の終了端で切削工具１３０がワーク加工面Ｗ１に接すると、制御部Ｃ１は、矢印Ａ２のように切削工具１３０を前記送り区間Ｓの経路上を移動させて、ワークＷに対する相対的な加工送り方向への往復振動を継続させ、ワーク未加工箇所Ｗ２の切削を継続させる。
このように、矢印Ａ１〜矢印Ａ４に示す動作を繰り返すように制御部Ｃ１が振動手段を制御する。As shown in FIG. 5, from the end of the arrow A3 where the cutting tool 130 is located in the feed section S when the reciprocating vibration is returned, the control unit C1 moves the cutting tool 130 to the feed section S as indicated by the arrow A4. Within the range of the idling motion of the workpiece along the cutting direction in a direction away from the work surface W1 to separate a predetermined distance from the work W, and along the cutting direction as shown by arrow A1 to the work surface W1. The cutting edge 131 of the cutting tool 130 is moved toward a position where a predetermined cutting amount is cut, and is brought into contact with the work surface W1 at a predetermined position on the path of the feed section S.
When the cutting tool 130 comes into contact with the workpiece machining surface W1 at the end end of the arrow A1, the control unit C1 moves the cutting tool 130 on the path of the feed section S as indicated by an arrow A2 to move the workpiece relative to the workpiece W. Reciprocating vibration in the machining feed direction is continued to continue cutting the workpiece unmachined portion W2.
In this way, the control unit C1 controls the vibrating means so as to repeat the operations shown by the arrows A1 to A4.
空振り動作の間に切削工具１３０がワークＷから離間する矢印Ａ４の開始端から、ワークＷに対する離間が完了する矢印Ａ１の終了端（矢印Ａ２の開始端）までの動作区間である前記離間送り区間は切削工具１３０の刃先１３１がワークＷに接触しない。
その結果、切削工具１３０の刃先１３１への負荷を軽減することができる。
さらに、切削工具１３０の刃先１３１とワークＷとの間に切削油が容易に入ることができるため、切削油の効果を高めることが可能となる。
切削工具１３０の接触位置となる矢印Ａ１の終了端を、送り区間Ｓの経路の両端の間とし、切削工具１３０の刃先１３１がすでに加工したワーク加工面Ｗ１の位置から切削を開始するように設定することによって、ワーク加工面Ｗ１に前回の加工によって生じた凸部を切削することができ、ワーク加工面Ｗ１の表面粗さを改善することができる。The separation feed section which is an operation section from the start end of the arrow A4 where the cutting tool 130 separates from the work W during the idling operation to the end end of arrow A1 (start end of arrow A2) where separation of the work W is completed. The cutting edge 131 of the cutting tool 130 does not contact the work W.
As a result, the load on the cutting edge 131 of the cutting tool 130 can be reduced.
Furthermore, since the cutting oil can easily enter between the cutting edge 131 of the cutting tool 130 and the work W, the effect of the cutting oil can be enhanced.
The end of the arrow A1, which is the contact position of the cutting tool 130, is set between both ends of the path of the feed section S, and the cutting edge of the cutting tool 130 is set to start cutting from the position of the already machined work surface W1. By doing so, it is possible to cut the convex portion generated by the previous machining on the work surface W1 and improve the surface roughness of the work surface W1.
第２実施例では、図６に示すように、往復振動の復動時に切削工具１３０が送り区間Ｓ内に位置する矢印Ｂ２の終了端から、制御部Ｃ１が、切削工具１３０を、矢印Ｂ３のように切り込み方向に沿ってワーク加工面Ｗ１から離間する方向へ移動させて、ワークＷから所定の距離を離間させ、矢印Ｂ１のように送り区間Ｓの経路及び切り込み方向に沿ってワーク加工面Ｗ１に向かって、切削工具１３０の刃先１３１が所定の切り込み量を切り込む位置に移動させ、前記送り区間Ｓの終了端の位置でワーク加工面Ｗ１に接触させる。
矢印Ｂ１の終了端で切削工具１３０がワーク加工面Ｗ１に接すると、制御部Ｃ１が、切削工具１３０のワークＷに対する相対的な加工送り方向への往復振動を継続させ、ワーク未加工箇所Ｗ２の切削を継続させる。In the second embodiment, as shown in FIG. 6, the control unit C1 moves the cutting tool 130 to the arrow B3 from the end end of the arrow B2 where the cutting tool 130 is located in the feed section S when the reciprocating vibration is returned. Is moved in a direction away from the work surface W1 along the cutting direction so as to be separated from the work W by a predetermined distance, and along the path of the feed section S and the cutting direction W1 along the cutting direction as indicated by an arrow B1. Toward, the cutting edge 131 of the cutting tool 130 is moved to a position where a predetermined cutting amount is cut, and is brought into contact with the work surface W1 at the position of the end end of the feed section S.
When the cutting tool 130 contacts the workpiece machining surface W1 at the end end of the arrow B1, the control unit C1 continues the reciprocating vibration of the cutting tool 130 in the machining feed direction relative to the workpiece W, and causes the workpiece unmachined portion W2 to move. Continue cutting.
このように、矢印Ｂ１〜矢印Ｂ３に示す動作を繰り返すように制御部Ｃ１が振動手段を制御する。
本実施例では、矢印Ｂ３、矢印Ｂ１の動作区間が、前記離間送り区間である。
本実施例の動作は、第１実施例の動作と比べて、第１実施例の矢印Ａ２の動作がないため、空振り動作中の切削工具１３０とワーク加工面Ｗ１との接触時間を短縮することができ、切削工具１３０の刃先１３１の負荷軽減の向上を図ることができる。In this way, the control unit C1 controls the vibrating means so as to repeat the operations shown by the arrows B1 to B3.
In this embodiment, the operation section indicated by the arrow B3 and the arrow B1 is the separated feed section.
The operation of the present embodiment does not have the operation of the arrow A2 of the first embodiment as compared with the operation of the first embodiment, and therefore the contact time between the cutting tool 130 and the work surface W1 during the idling operation is shortened. Therefore, the load on the cutting edge 131 of the cutting tool 130 can be reduced.
切削工具１３０のワーク加工面Ｗ１から離間する方向へ移動は、前記両実施例に示される矢印Ａ４または矢印Ｂ３のように送り区間Ｓの経路に沿って行うことができる他、第３実施例である図７に示すように、往復振動の復動時に切削工具１３０が送り区間Ｓ内に位置する矢印Ｄ２の終了端から、矢印Ｄ３のように送り区間Ｓの経路に無関係に切り込み方向に沿って行わせることができる。
切削工具１３０がワークＷから所定の距離を離間した後、矢印Ｄ１のように切削工具１３０を、切り込み方向に沿ってワーク加工面Ｗ１に向かって、切削工具１３０の刃先１３１が所定の切り込み量を切り込む位置に移動させ、前記送り区間Ｓの終了端の位置でワーク加工面Ｗ１に接触させる。
矢印Ｄ１の終了端で切削工具１３０がワーク加工面Ｗ１に接すると、制御部Ｃ１が、切削工具１３０のワークＷに対する相対的な加工送り方向への往復振動を継続させ、ワーク未加工箇所Ｗ２の切削を継続させる。The movement of the cutting tool 130 in the direction away from the workpiece processing surface W1 can be performed along the path of the feed section S as shown by the arrow A4 or the arrow B3 shown in the both embodiments, and in the third embodiment. As shown in FIG. 7, when the reciprocating vibration is returned, the cutting tool 130 is located in the feed section S from the end end of the arrow D2 along the cutting direction regardless of the route of the feed section S as indicated by the arrow D3. Can be done.
After the cutting tool 130 is separated from the work W by a predetermined distance, the cutting tool 130 is moved along the cutting direction toward the work processing surface W1 as indicated by an arrow D1, and the cutting edge 131 of the cutting tool 130 makes a predetermined cut amount. The workpiece is moved to the cutting position and brought into contact with the work surface W1 at the position of the end of the feed section S.
When the cutting tool 130 comes into contact with the workpiece machining surface W1 at the end end of the arrow D1, the control unit C1 continues the reciprocating vibration of the cutting tool 130 in the machining feed direction relative to the workpiece W, and the workpiece unmachined portion W2 Continue cutting.
このように、矢印Ｄ１〜矢印Ｄ３に示す動作を繰り返すように制御部Ｃ１が振動手段を制御する。
本実施例では、矢印Ｄ３、矢印Ｄ１の動作区間が、前記離間送り区間である。
本実施例では、第１実施例の動作および第２実施例の動作と比べて、空振り動作中の加工送り方向の移動量が少なくなるとともに移動時間が短くなる。In this way, the control unit C1 controls the vibrating means so as to repeat the operations shown by the arrows D1 to D3.
In this embodiment, the operation section indicated by the arrow D3 and the arrow D1 is the separated feed section.
In this embodiment, as compared with the operation of the first embodiment and the operation of the second embodiment, the movement amount in the machining feed direction during the idling operation is smaller and the movement time is shorter.
なお、前記実施例２及び３において、矢印Ｂ２またはＤ２の終了端（矢印Ｂ３またはＤ３の開始端）を送り区間Ｓの開始端に一致させることによって、前記離間送り区間が、前記送り区間Ｓの全体を占めるようにすることもできる。 In the second and third embodiments, by making the end end of the arrow B2 or D2 (start end of the arrow B3 or D3) coincide with the start end of the feed section S, the separated feed section can be set to the feed section S It can be made to occupy the whole.
１００ ・・・ 工作機械
１１０ ・・・ 主軸
１１０Ａ・・・ 主軸台
１２０ ・・・ チャック
１３０ ・・・ 切削工具
１３０Ａ・・・ 切削工具台
１３１ ・・・ 刃先
１５０ ・・・ Ｘ軸方向送り機構
１５１ ・・・ ベース
１５２ ・・・ Ｘ軸方向ガイドレール
１５３ ・・・ Ｘ軸方向送りテーブル
１５４ ・・・ Ｘ軸方向ガイド
１５５ ・・・ リニアサーボモータ
１５５ａ・・・ 可動子
１５５ｂ・・・ 固定子
１６０ ・・・ Ｚ軸方向送り機構
１６１ ・・・ ベース
１６２ ・・・ Ｚ軸方向ガイドレール
１６３ ・・・ Ｚ軸方向送りテーブル
１６４ ・・・ Ｚ軸方向ガイド
１６５ ・・・ リニアサーボモータ
１６５ａ・・・ 可動子
１６５ｂ・・・ 固定子
Ｃ ・・・ 制御装置
Ｃ１ ・・・ 制御部
Ｗ ・・・ ワーク
Ｗ１ ・・・ ワーク加工面
Ｗ２ ・・・ ワーク未加工箇所100 ・・・ Machine tool 110 ・・・ Spindle 110A ・・・ Spindle stock 120 ・・・ Chuck 130 ・・・ Cutting tool 130A ・・・ Cutting tool base 131 ・・・ Blade tip 150 ・・・ X-axis direction feed mechanism 151・・・ Base 152 ・・・ X axis direction guide rail 153 ・・・ X axis direction feed table 154 ・・・ X axis direction guide 155 ・・・ Linear servo motor 155a ・・・ Mover 155b ・・・ Stator 160・・・ Z axis direction feed mechanism 161 ・・・ Base 162 ・・・ Z axis direction guide rail 163 ・・・ Z axis direction feed table 164 ・・・ Z axis direction guide 165 ・・・ Linear servo motor 165a ・・・Mover 165b... Stator C... Control device C1... Control unit W... Workpiece W1... Workpiece machining surface W2... Workpiece unmachined part
Claims (4)
前記往復振動の往動時の切削加工部分と、復動時の切削加工部分とを重複させて、前記切削工具を加工送り方向に沿って往復振動させる振動切削を行いながら加工送り方向に送るように、振動手段と回転手段とが連係して駆動制御され、
前記ワークと前記切削工具との相対回転と、前記ワークに対する前記切削工具の前記加工送り方向への前記往復振動を伴う送り動作とによってワークの加工を実行させる工作機械であって、
前記振動切削中の前記往動時と復動時の切削加工部分が重複する範囲の前記切削工具の送り区間内に、前記切削工具と前記ワークとを離間させた状態で、前記切削工具が送り動作される離間送り区間を設ける構成とした工作機械。 A work holding means for holding a work, a tool rest for holding a cutting tool for cutting the work, and a relative movement of the work holding means and the tool rest to feed the cutting tool in a predetermined machining feed direction. A feed means for operating, a vibrating means for relatively reciprocally vibrating the work holding means and the tool rest along a machining feed direction, and a rotating means for relatively rotating the work and the cutting tool,
The cutting part during the forward movement of the reciprocating vibration and the cutting part during the backward movement are overlapped, and the cutting tool is fed in the machining feeding direction while performing the vibration cutting in which the cutting tool reciprocally vibrates along the machining feeding direction. In addition, the vibrating means and the rotating means are linked and drive-controlled,
A machine tool which executes machining of a workpiece by relative rotation between the workpiece and the cutting tool, and a feed operation involving the reciprocating vibration of the cutting tool in the machining feed direction with respect to the workpiece,
In the feed section of the cutting tool in the range where the cutting portions during the forward movement and the backward movement during the vibration cutting overlap, the cutting tool is fed while the cutting tool and the work are separated from each other. A machine tool configured to provide a separated feed section to be operated.
前記往復振動の往動時の切削加工部分と、復動時の切削加工部分とを重複させて、前記切削工具を加工送り方向に沿って往復振動させる振動切削を行いながら加工送り方向に送るように振動手段と回転手段とを連係して駆動制御し、
前記ワークと前記切削工具との相対回転と、前記ワークに対する前記切削工具の前記加工送り方向への前記往復振動を伴う送り動作とによって、前記加工送り方向の往動時の切削加工部分と、復動時の切削加工部分とが重複するようにワークの加工を実行させる工作機械の制御装置であって、
前記振動切削中の前記往動時と復動時の切削加工部分が重複する範囲の前記切削工具の送り区間内に、前記切削工具と前記ワークとを離間させた状態で、前記切削工具が送り動作される離間送り区間を設ける構成とした工作機械の制御装置。
A work holding means for holding a work, a tool rest for holding a cutting tool for cutting the work, and a relative movement of the work holding means and the tool rest to feed the cutting tool in a predetermined machining feed direction. Work including a feed means for operating, a vibrating means for relatively reciprocally vibrating the work holding means and the tool rest in the machining feed direction, and a rotating means for relatively rotating the work and the cutting tool Installed on the machine,
The cutting part during the forward movement of the reciprocating vibration and the cutting part during the backward movement are overlapped, and the cutting tool is fed in the machining feeding direction while performing the vibration cutting in which the cutting tool reciprocally vibrates along the machining feeding direction. In order to drive and control the vibration means and the rotation means in cooperation with each other,
By the relative rotation between the work and the cutting tool, and the feeding operation involving the reciprocating vibration of the cutting tool in the machining feed direction with respect to the work, a cutting portion at the time of forward movement in the machining feed direction, A control device for a machine tool that executes machining of a work so that a cutting portion during movement overlaps,
In the feed section of the cutting tool in the range where the cutting portions during the forward movement and the backward movement during the vibration cutting overlap, the cutting tool is fed while the cutting tool and the work are separated from each other. A machine tool control device configured to provide a separated feed section to be operated.
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