JP2777601B2 - NC lathe with sub spindle - Google Patents

NC lathe with sub spindle

Info

Publication number
JP2777601B2
JP2777601B2 JP1269451A JP26945189A JP2777601B2 JP 2777601 B2 JP2777601 B2 JP 2777601B2 JP 1269451 A JP1269451 A JP 1269451A JP 26945189 A JP26945189 A JP 26945189A JP 2777601 B2 JP2777601 B2 JP 2777601B2
Authority
JP
Japan
Prior art keywords
spindle
sub
axis direction
axis
lathe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP1269451A
Other languages
Japanese (ja)
Other versions
JPH03131401A (en
Inventor
康郎 杉本
和雄 一村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OOKUMA KK
Original Assignee
OOKUMA KK
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 OOKUMA KK filed Critical OOKUMA KK
Priority to JP1269451A priority Critical patent/JP2777601B2/en
Publication of JPH03131401A publication Critical patent/JPH03131401A/en
Application granted granted Critical
Publication of JP2777601B2 publication Critical patent/JP2777601B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Description

【発明の詳細な説明】 イ 産業上の利用分野 本発明は、ベッドの片端に固定された主軸台にメイン
スインドルを、又ベッドに沿ってＺ軸方向へ移動可能な
キャリッジにサブスピンドルを、それぞれ互いにワーク
保持面を対向させて備えたサブスピンドル付きNC旋盤に
関する。The present invention relates to a head spindle fixed to one end of a bed, a main spindle, a sub spindle to a carriage movable in the Z-axis direction along the bed, The present invention relates to an NC lathe with a sub-spindle provided with work holding surfaces facing each other.

ロ 従来技術 従来、サブスピンドル付きNC旋盤には、サブスピンド
ルをＺ軸方向へ移動可能とした機種、又そのＺ軸方向の
移動に加えてＸ軸へも移動可能とした機種が存在する。(B) Conventional technology Conventional NC lathes with a sub-spindle include a model in which the sub-spindle can be moved in the Z-axis direction, and a model in which the sub-spindle can be moved in the X-axis in addition to the movement in the Z-axis direction.

ハ 発明が解決しようとする課題 ワークは、全長に亘って同心加工するばかりでなく、
部分的に偏心加工することがあるし、ワークには、長手
方向に歪みを起こして軸心に狂いを生じているものがあ
る。C The problem to be solved by the invention The work is not only concentrically machined over its entire length,
The workpiece may be partially eccentrically processed, and some of the workpieces may be distorted in the longitudinal direction and have an irregular axis.

従来のサブスピンドル付きNC旋盤では、ワークの両端
部（正面と背面）の軸心が正確に一致していれば、スピ
ンドルへの取り付け、或いはスピンドル相互間の受け渡
しとも何等問題はないが、Ｙ軸方向に対して偏心した背
面部を有するワークでは、その背面を加工するためにス
ピンドル相互間の受け渡しができないし、ワークの端部
相互間の軸心にＹ軸方向のずれがある場合や、熱変位に
よりメインスピンドルの軸心がＹ軸方向へ移動している
状態では、両端部をスピンドルで支持して軸心に平行な
溝加工をすることが全くできなかった。In a conventional NC lathe with a sub-spindle, if the axes of both ends (front and back) of the work are exactly aligned, there is no problem with attachment to the spindle or transfer between spindles, but the Y axis In the case of a work having a back part eccentric to the direction, it cannot be transferred between spindles because the back face is machined. In a state where the axis of the main spindle is moving in the Y-axis direction due to the displacement, it was not possible at all to support the both ends with the spindle and to perform a groove processing parallel to the axis.

ニ 課題を解決するための手段 ワークの軸心にＹ軸方向のずれがある場合、サブスピ
ンドルがＸ軸方向へ移動可能な機種であればワークを90
度回転させてそのずれをＸ軸方向のずれに変更して対応
できるが、実際にはＸ軸方向へのずれをも含むことが多
いので、回転角度の割り出しが煩雑であったり、ワーク
の加工面と刃物の取り付け姿勢との位置関係で前記ずれ
方向の変更に制約を受けて対応が極めて困難となること
が多いし、メインスインドルの軸心が熱変位によりＹ軸
方向へ移動した場合は、全く対応する手段がなかった。D. Means for solving the problem When the axis of the work is displaced in the Y-axis direction, if the sub-spindle can move in the X-axis direction, the work is moved to 90
It is possible to deal with this by changing the deviation to the X-axis direction by rotating it by degrees, but in practice, it often includes the deviation in the X-axis direction, so it is complicated to calculate the rotation angle or work the workpiece. In many cases, it is extremely difficult to respond to the change in the shift direction due to the positional relationship between the surface and the mounting posture of the blade, and it is extremely difficult to deal with the change. If the axis of the main spindle is moved in the Y-axis direction due to thermal displacement, There was no corresponding means at all.

そこで本発明は、偏心方向、及びその偏心がワークの
形状、或はメインスピンドルの熱変位いずれに起因する
かの如何を問わず、ワークの受け渡し及び両端支持を可
能とするサブスピンドル付きNC旋盤であって、その構成
は、サブスピンドルを、キャリッジに対してＹ軸方向へ
移動及び所望位置で固定可能に取り付けたことにある。Therefore, the present invention provides an NC lathe with a sub-spindle capable of transferring and supporting both ends of a work regardless of the eccentric direction and whether the eccentricity is caused by the shape of the work or the thermal displacement of the main spindle. The configuration is that the sub spindle is attached to the carriage so as to be movable in the Y-axis direction and fixed at a desired position.

ホ 作用 ワークがＹ軸方向への偏心を伴う場合、及びメインス
ピンドルの軸心が熱変位によりＹ軸方向へ移動した場合
には、サブスピンドルをＹ軸方向へ移動して対応でき
る。(E) When the work involves eccentricity in the Y-axis direction, or when the axis of the main spindle moves in the Y-axis direction due to thermal displacement, the sub-spindle can be moved in the Y-axis direction.

ヘ 実施例 本発明に係るサブスピンドル付きNC旋盤の実施例を図
面に基いて説明する。F Examples An embodiment of an NC lathe with a sub-spindle according to the present invention will be described with reference to the drawings.

１はベッドで、このベッド１の片端には主軸台２が固
定され、その主軸台２にメインスピンドル３が取り付け
られ、そのメインスピンドル３にはチャック3aが装備さ
れている。A bed 1 has a headstock 2 fixed to one end of the bed 1, a main spindle 3 mounted on the headstock 2, and a chuck 3 a mounted on the main spindle 3.

ベッド面は長手方向の片側へ略45度傾斜し、ベッド上
にはキャリッジ４がそのベッド１に沿ってメインスピン
ドル３の方向（Ｚ軸方向）へ進退移動及びＸ軸方向（Ｚ
軸と直交し且つベッド面と平行方向）へ移動可能に設け
られている。The bed surface is inclined approximately 45 degrees to one side in the longitudinal direction, and the carriage 4 moves on the bed along the bed 1 in the direction of the main spindle 3 (Z-axis direction) and in the X-axis direction (Z-axis direction).
(In the direction perpendicular to the axis and parallel to the bed surface).

そしてそのキャリッジ４には、サブスピンドル５は、
キャリッジ４に対して前記Ｘ軸とＺ軸とに直交する方向
（Ｙ軸方向）へ移動可能に取り付けられ、そのサブスピ
ンドル５にもチャック5aが装備されている。And the sub spindle 5 on the carriage 4
The carriage 4 is mounted so as to be movable in a direction orthogonal to the X axis and the Z axis (Y axis direction), and the sub spindle 5 is also provided with a chuck 5a.

前記メインスピンドル３及びサブスピンドル５間のＸ
軸方向両側には、Ｘ軸及びＺ軸方向へ移動可能な刃物台
６、７が装備されており、一方の刃物台７は回転工具が
装着可能となっている。X between the main spindle 3 and the sub spindle 5
On both sides in the axial direction, there are provided tool rests 6 and 7 movable in the X-axis and Z-axis directions, and one of the tool rests 7 can be mounted with a rotary tool.

前記キャリッジ４は、上面のＸ軸方向片側（斜め下
方）にマウント部4aを有し、そのマウント部4aのＸ軸方
向片側面（斜め上方）には、サブスピンドル５の本体が
Ｙ軸方向へ摺動自在に取り付けられている。The carriage 4 has a mount 4a on one side (obliquely lower) in the X-axis direction on the upper surface, and the main body of the sub-spindle 5 extends in the Y-axis direction on one side (obliquely upper) in the X-axis direction of the mount 4a. It is slidably mounted.

両者はサブスピンドル５の本体側面に形成されたＴ型
溝に、マウント部4a側面に形成された前記Ｔ型溝に対応
する断面Ｔ字状の突条を嵌め込んだ状態に組み合わせ結
合されている。Both are combined and connected in a state where a T-shaped ridge corresponding to the T-shaped groove formed on the side surface of the mount portion 4a is fitted into a T-shaped groove formed on the side surface of the main body of the sub-spindle 5. .

又マウント部4aの側面には、そのマウント部4a内に組
み込まれたモータ8aと伝達機構8bを介して連結された送
りねじ（ボールねじ）８が、Ｙ軸方向に向けて回転可能
に支持されている。A feed screw (ball screw) 8 connected via a transmission mechanism 8b to a motor 8a incorporated in the mount 4a is supported on the side surface of the mount 4a so as to be rotatable in the Y-axis direction. ing.

一方サブスピンドル５の本体側面にねじ穴を有するブ
ラケット９が突設され、そのブラケット９のねじ孔には
前記送りねじ８が螺合せられ、それによってサブスピン
ドル５は、前記モータ８の回動によりＹ軸方向へねじ送
り作用で移動し、且つモータの停止でその位置に固定さ
れる。On the other hand, a bracket 9 having a screw hole is protruded from the side surface of the main body of the sub-spindle 5, and the feed screw 8 is screwed into the screw hole of the bracket 9, whereby the sub-spindle 5 is rotated by the rotation of the motor 8. It moves in the Y-axis direction by the screw feed action, and is fixed at that position when the motor stops.

このように形成されたサブスピンドル付きNC旋盤は、
メインスピンドル３に固定され、表部に対してＹ軸方向
へ偏心した加工部ｍを有するワークＭを、第４図ａ、ｂ
に示す如く、サブスピンドル５をＹ軸方向へのその偏心
量ε１分だけ移動させることによって、そのサブスピン
ドル５側へ受け渡しして背面加工をすることができる。NC lathe with sub spindle formed in this way,
A workpiece M having a processing portion m fixed to the main spindle 3 and eccentric in the Y-axis direction with respect to the front portion is shown in FIGS.
By moving the sub-spindle 5 by the amount of eccentricity ε1 in the Y-axis direction as shown in ( 1) , the sub-spindle 5 can be transferred to the sub-spindle 5 side for backside processing.

又長手方向に対して歪を起こし、軸心にＹ軸方向のず
れを生じているワークＭ′に対しては、第５図ａ、ｂに
示す如く、サブスピンドル５をＹ軸方向へその喰い違い
量ε２分だけ移動させれば支持可能となり、両端を支持
して軸心に平行な溝加工が可能となる。In addition, as shown in FIGS. 5a and 5b, the sub spindle 5 is eclipsed in the Y-axis direction with respect to the work M 'which is distorted in the longitudinal direction and has an axial center shifted in the Y-axis direction. supportable and it is moved by the difference amount epsilon 2 minutes, it is possible to parallel groove on the axis to support both ends.

更に、熱変位によりメインスピンドルの軸心がＹ軸方
向へ移動してスピンドル相互間の芯高に喰い違いがある
場合も、第６図ａ、ｂに示すと同様、にサブスピンドル
５をＹ軸方向へその移動量ε３分だけ移動させてワーク
Ｍを支持すれば、軸心に平行な溝形成が可能となる。Further, when the axis of the main spindle moves in the Y-axis direction due to thermal displacement and there is a discrepancy in the center height between the spindles, the sub-spindle 5 is moved in the Y-axis direction as shown in FIGS. if moved by the movement amount epsilon 3 minutes in the direction supporting the workpiece M, it is possible to parallel grooves formed in the axial center.

上記サブスピンドルのＹ軸方向移動制御は、加工形状
に適応するNCプログラムに基づいて実行されたり、偏心
量を自動的に測定して適宜修正される。The sub-spindle movement control in the Y-axis direction is executed based on an NC program adapted to the machining shape, or is corrected as appropriate by automatically measuring the amount of eccentricity.

尚上記説明におけるＹ軸方向のずれはＹ軸方向成分を
意味し、変位方向はＹ軸方向のみでなく、Ｘ軸方向にも
存在する可能性があることを確認しておく。Note that the displacement in the Y-axis direction in the above description means the component in the Y-axis direction, and it is confirmed that the displacement direction may exist not only in the Y-axis direction but also in the X-axis direction.

実施例のサブスピンドル付きNC旋盤の両スピンドル
は、Ｚ軸方向に加えてＸ軸とＹ軸の両方向に対して移動
可能であるが、Ｘ軸方向に移動できない機種とすること
もでき、又サブスピンドルは単独回転、メインスピンド
ルと同期回転のいずれでも、或はいずれかを選択でき
る。Both spindles of the NC lathe with a sub-spindle of the embodiment can be moved in both the X-axis and Y-axis directions in addition to the Z-axis direction. The spindle can be either a single rotation, a main spindle and a synchronous rotation, or any one of them.

更にはサブスピンドルをＹ軸方向へ移動する手段とし
ては、送りねじを利用したモータ制御以外に、ラックと
ピンオンを利用する機構を採用したり、モータ停止時に
作動する固定手段を別途設けたり、移動及び固定作動を
手動操作可能としても差し支えない。Further, as means for moving the sub-spindle in the Y-axis direction, in addition to the motor control using the feed screw, a mechanism using a rack and a pin-on may be adopted, or a fixing means that operates when the motor is stopped may be provided separately. Alternatively, the fixing operation may be manually operated.

更に刃物台の数も実施例に限定するものでなく、全て
の刃物台に回転工具を取り付け可能とすることもでき
る。Further, the number of tool rests is not limited to the embodiment, and a rotary tool can be attached to all tool rests.

ト 効果 本発明によれば、軸心がＹ軸方向へ偏位した偏心部を
有するワークに対して、サブスピンドルをその偏心分だ
けＹ軸方向へ移動することにより、偏心部を背面加工す
るためにメインスピンドルからサブスピンドルへのワー
ク受け渡しが可能となるし、ワークの軸心が狂っている
場合や、特に熱変位によりメインスピンドルの軸心が移
動して両端部相互間の軸心が一致しない場合でも、ワー
クを両端支持して軸心に平行な溝加工が可能となる。Effect According to the present invention, for a workpiece having an eccentric portion whose axis is deviated in the Y-axis direction, the sub-spindle is moved in the Y-axis direction by the amount of the eccentricity, thereby processing the back surface of the eccentric portion. Work can be transferred from the main spindle to the sub-spindle, and when the axis of the work is out of alignment, or especially when the axis of the main spindle moves due to thermal displacement, the axis between both ends does not match Even in this case, it is possible to support both ends of the work and perform groove processing parallel to the axis.

【図面の簡単な説明】[Brief description of the drawings]

図面は本発明に係るサブスピンドル付きNC旋盤を示した
もので、第１図は要部を示す斜視図、第２図はキャリッ
ジに取り付けられたサブスピンドルを示す平面図、第３
図は同側面図、第４図ａ、ｂは偏心加工部を有するワー
クの受け渡し工程を示す説明図、第５図ａ、ｂは両端部
間において軸心がずれたワークに、軸心と平行な溝を形
成する工程の説明図、第６図ａ、ｂは熱変位によりメイ
ンスピンドルの軸心が移動した場合、ワークに軸心と平
行な溝を形成する工程の説明図である。 １……ベッド、２……主軸台、３……メインスピンド
ル、3a……チャック、４……キャリッジ、4a……マウン
ト部、５……サブスピンドル、5a……チャック、６、７
……刃物台、８……送りねじ、8a……モータ、8b……伝
達機構、９……ブラケット、Ｍ、Ｍ′……ワーク、ｍ…
…偏心加工部、ε１……偏心量、ε２……喰い違い量、
ε３……移動量。The drawings show an NC lathe with a sub-spindle according to the present invention. FIG. 1 is a perspective view showing a main part, FIG. 2 is a plan view showing a sub-spindle mounted on a carriage, FIG.
The figures are the same side views, FIGS. 4a and 4b are explanatory views showing a process of transferring a work having an eccentric portion, and FIGS. 5a and 5b are parallel to the work with a work whose center is shifted between both ends. FIGS. 6A and 6B are explanatory views of a step of forming a groove which is parallel to the axis of the main spindle when the axis of the main spindle is moved by thermal displacement. DESCRIPTION OF SYMBOLS 1 ... Bed, 2 ... Headstock, 3 ... Main spindle, 3a ... Chuck, 4 ... Carriage, 4a ... Mounting part, 5 ... Sub spindle, 5a ... Chuck, 6, 7
… Tool post, 8… Feed screw, 8a …… Motor, 8b …… Transmission mechanism, 9… Bracket, M, M '…… Work, m…
… Eccentric processed part, ε 1 … eccentric amount, ε 2 … offset amount,
ε 3 ... movement amount.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】ベッドの片端に固定された主軸台にメイン
スピンドルを、又ベッドに沿ってＺ軸方向へ移動可能な
キャリッジにサブスピンドルを、それぞれ互いにワーク
保持面を対向させて備えたサブスピンドル付きNC旋盤に
あって、前記サブスピンドルを、キャリッジに対してＹ
軸方向へ移動及び所望位置で固定可能に取り付けたサブ
スピンドル付きNC旋盤。1. A sub-spindle comprising: a main spindle on a headstock fixed to one end of a bed; a sub-spindle on a carriage movable in the Z-axis direction along the bed; NC lathe with the sub spindle, Y
NC lathe with sub-spindle mounted so that it can be moved in the axial direction and fixed at the desired position.
JP1269451A 1989-10-17 1989-10-17 NC lathe with sub spindle Expired - Fee Related JP2777601B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1269451A JP2777601B2 (en) 1989-10-17 1989-10-17 NC lathe with sub spindle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1269451A JP2777601B2 (en) 1989-10-17 1989-10-17 NC lathe with sub spindle

Publications (2)

Publication Number Publication Date
JPH03131401A JPH03131401A (en) 1991-06-05
JP2777601B2 true JP2777601B2 (en) 1998-07-23

Family

ID=17472615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1269451A Expired - Fee Related JP2777601B2 (en) 1989-10-17 1989-10-17 NC lathe with sub spindle

Country Status (1)

Country Link
JP (1) JP2777601B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101430825B1 (en) * 2012-10-31 2014-08-14 현대위아 주식회사 lathe having auxiliary tool table

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331033C1 (en) * 1993-09-13 1995-03-09 Grundig Ag Test device for parting control on automatic bar turning machines
JP4393898B2 (en) * 2004-03-15 2010-01-06 ヤマザキマザック株式会社 Vertical machine tools and combinations of vertical machine tools
CN108080655A (en) * 2016-11-23 2018-05-29 东莞泽鑫数控机床有限公司 A kind of double spindle Lathes of row-knife oblique lathe bed

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01149202U (en) * 1988-04-06 1989-10-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101430825B1 (en) * 2012-10-31 2014-08-14 현대위아 주식회사 lathe having auxiliary tool table

Also Published As

Publication number Publication date
JPH03131401A (en) 1991-06-05

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