JPS6374504A - Automatic lathe - Google Patents

Automatic lathe

Info

Publication number
JPS6374504A
JPS6374504A JP21553286A JP21553286A JPS6374504A JP S6374504 A JPS6374504 A JP S6374504A JP 21553286 A JP21553286 A JP 21553286A JP 21553286 A JP21553286 A JP 21553286A JP S6374504 A JPS6374504 A JP S6374504A
Authority
JP
Japan
Prior art keywords
spindle
machining
sub
main spindle
processing
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.)
Pending
Application number
JP21553286A
Other languages
Japanese (ja)
Inventor
Tomohiko Okitsu
興津 智彦
Hideo Kanbe
秀夫 神戸
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.)
Star Micronics Co Ltd
Original Assignee
Star Micronics 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 Star Micronics Co Ltd filed Critical Star Micronics Co Ltd
Priority to JP21553286A priority Critical patent/JPS6374504A/en
Publication of JPS6374504A publication Critical patent/JPS6374504A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To improve productivity by performing a back side machining of a component finished with a previous machining process on the side of a sub- spindle sliding in both parallel and vertical directions on the side opposite to a main spindle at the same time with a front side machining of a succeeding component on the side of the main spindle, CONSTITUTION:A component finished with a front side machining is cut off with a cutoff tool of a turret tool post 8 or 9 taking into consideration a margin for a back side machining. At the same time, a sub-spindle 20 is advanced by a servomotor 16 together with a slider 15 along a slide guide 14 to hold the component finished with the front side machining and they rotate synchronously with a main spindle 2 by means of a servomotor 21. Then, the sub-spindle 20, after receding together with the slider 15, slides perpendicularly to a main spindle center line by means of a servomotor 17, slides toward the main spindle center line by means of the servomotor 16 so that the back side machining of a portion yet to be machined of the component finished with the front side machining is performed with a tool 23 for the back side machining by means of a combination of both of the slide movements.

Description

【発明の詳細な説明】 (1)産業上の利用分野 本発明は、自動旋盤の構造改良に関するものである。[Detailed description of the invention] (1) Industrial application fields The present invention relates to structural improvements to automatic lathes.

(2)従来技術の欠点 従来、自動旋盤の旋削加工に於ては、例えば、第3図に
示す如(加工材40に対して、部品41のQll工を行
う場合、鍔部30を中心として、それより前の部分を表
加工用刃物33にて加工することを裏加工31、それよ
り後の部分の加工、この例においては表加工用刃物34
による加工を裏加工32という。
(2) Disadvantages of the Prior Art Conventionally, in turning processing using an automatic lathe, for example, as shown in FIG. , the processing of the part before that with the front processing cutter 33 is called the back processing 31, and the processing of the part after that, in this example, the front processing cutter 34
This processing is called back processing 32.

裏加工に於ては、加工形状により、重切削対応するため
刃物34の剛性が加工精度との兼合より必要上 となるが、この場合、刃物34の刃幅きが増す程、加工
点がガイドブツシュ35より離れるため、精度の高い加
工ができないという欠点があった。又、前記裏加工を表
加工用刃物により加工を行うこともてきるが、刃物の形
状が異なるため該刃物形状と該加工部品形状との兼合に
より刃物が加工材と干渉しないよう、別の刃物で前加工
を施す必要がある等、制御が複雑となり、又、結果とし
て精度を維持するためには重切削対応ができず加工範囲
が限定され、生産性の向上において問題となっていた。
In back machining, the rigidity of the blade 34 is required to cope with heavy cutting depending on the machining shape, in order to balance machining accuracy.In this case, as the width of the blade 34 increases, the processing point becomes Since it is separated from the guide bush 35, there is a drawback that highly accurate machining cannot be performed. Also, the back processing can be performed using a front processing cutter, but since the shape of the cutter is different, it is necessary to use a different tool to prevent the cutter from interfering with the workpiece due to the combination of the shape of the cutter and the shape of the workpiece. Control is complicated, such as the need for pre-processing with a cutter, and as a result, it is not possible to handle heavy cutting to maintain accuracy, which limits the processing range, which poses a problem in improving productivity.

一方、裏加工時において加工材先端部がたわまないよう
に保持することも考えられるが、装置が複雑で、加工制
御も複雑となり、精度上の効果はあるものの生産性、コ
スト面において問題があった。
On the other hand, it is possible to hold the tip of the workpiece so that it does not bend during back processing, but the equipment is complicated and the processing control is also complicated, and although it is effective in terms of accuracy, it poses problems in terms of productivity and cost. was there.

(3)発明の目的 本発明は、前記欠点を除去するものであり、その目的と
するところは加工部品の裏加工と裏加工とを加工工程上
切離し、且、互いの刃物が干渉し合うことなく、同時に
加工を行うことができる構成とすることにより、生産性
向上をはかること、更には、裏加工用の刃物の剛性を表
加工用刃物と同等の剛性をもたし、精度を落すことなく
重切削を可能とする等、加工範囲を拡大することにある
(3) Purpose of the Invention The present invention is intended to eliminate the above-mentioned drawbacks, and its purpose is to separate the back processing and back processing of a processed part in the processing process, and to prevent the blades from interfering with each other. To improve productivity by creating a configuration that allows processing to be performed at the same time without having to perform processing at the same time.Furthermore, the rigidity of the cutter for back processing is equivalent to that of the cutter for front processing, so that accuracy is not reduced. The aim is to expand the range of machining, such as making heavy cutting possible.

(4)発明の概要 そして、具体的にはメインスピンドルと先端部がガイド
ブツシュにて支持された加工材に対して進退摺動するタ
レット刃物台との間の相対的な駆動制御により加工材に
対して裏加工を行うと共に、前記ガイドブツシュと対向
する側に主軸中心線と平行に進退摺動するサブスピンド
ルを有し、該サブスピンドルにより前記裏加工終了の加
工部品を把持すると共に、前記裏加工用の刃物を有する
タレット刃物台の駆動に対して干渉することな(、表加
工用刃物台との間の相対的な駆動制御により裏加工を行
う構成とし、メインスピンドル側における次部品の裏加
工と同時に、前の前加工終了部品の裏加工をサブスピン
ドル側にて行う構成としたことにより目的を達成したも
のである。
(4) Outline of the invention And, specifically, the workpiece is processed by controlling the relative drive between the main spindle and the turret tool post, which slides forward and backward with respect to the workpiece, the tip of which is supported by a guide bush. It has a sub-spindle on the side facing the guide bushing that slides back and forth parallel to the spindle center line, and the sub-spindle grips the workpiece that has been finished with the back-machining, The configuration is such that back machining is performed by relative drive control between the turret tool post and the front machining tool post without interfering with the drive of the turret tool rest having the cutter for back machining, and This objective has been achieved by configuring the sub-spindle side to perform back processing of the previously pre-processed part at the same time as the back processing.

(5)実施例の説明 以下、本発明の実施例を図面に基づいて説明する。(5) Description of examples Embodiments of the present invention will be described below based on the drawings.

第1図は本発明自動旋盤の概略構成を示す平面図、第2
図は第1図の正面図である。2は裏加工用の公知のメイ
ンスピンドルであり、サーボモータ23の駆動回転によ
りスピンドルが回転すると共に、加工材を把持するチャ
ック開閉機構を有し構成し、サーボモータ3の回転制御
によるボールネジ4の回転制御にて、主軸軸方向に摺動
自在に配設され、これらユニットが本体1上に搭載して
なる。5は前記主軸と同心に本体に固定したがイドブソ
ノユユニット、8.9は主軸中心線に対して対称位置に
配設したタレット刃物台であり、タレット刃物台8はサ
ーボモータ6の回転制御によるボール不ジアの回転制御
にて主軸中心に向って進退摺動すると共に、タレット刃
物台9は前記刃物台8と同様にサーボモータ10の回転
制御によるボールネジ11の回転制御にて主軸中心に向
って進退摺動できるよう配設されている。12.13は
前記タレット刃物台8.9の刃物を選択するための割出
し用アクチュエータである。そして、タレット刃物台8
.9の刃物割出し選択とタレット刃物台8.9の主軸中
心に対する進退摺動制御とメインスピンドル2の進退摺
動制御による加工材と刃物との間の係合作用にて裏加工
が行われる。20は前記ガイドブツシュユニット5と相
対向する側に配設された裏加工用のサブスピンドルであ
り、前記メインスピンドル2の主軸中心線と平行に本体
上に形成された摺動ガイド部14上を摺動自在に配設し
たスライダー15を介し摺動自在に配設してなり、サー
ボモータ16の回転制御によるボールネジ18の回転制
御にてメインスピンドル2に対して前記スライダー15
と一体に進退摺動できるよう形成されている。又、該サ
ブスピンドル20は前記スライダーI5上をサーボモー
タ17の回転制御によるボールネジ19の回転制御にて
サブスピンドル20の主軸中心線に対して直交する方向
に摺動できるよう形成している。21はサブスピンドル
20を駆動回転させるためのサーボモータであり、前記
メインスピンドル2と同様、公知の回転駆動機構を有す
ると共に、裏加工完了と共に加工部品を把持するための
チャック開閉機構を有している。22は前記メインスピ
ンドル2と対向する側の本体1上に前記タレット刃物台
8.9の摺動に対して干渉しない位置に配設された刃物
台であり、加工部品形状に基づいた表加工用刃物23が
セットされている。
Fig. 1 is a plan view showing the schematic configuration of the automatic lathe of the present invention;
The figure is a front view of FIG. 1. Reference numeral 2 designates a known main spindle for back processing, which is rotated by the drive rotation of a servo motor 23 and has a chuck opening/closing mechanism for gripping the workpiece. These units are mounted on the main body 1 and are arranged to be slidable in the direction of the spindle axis under rotation control. Reference numeral 5 denotes an ID sonoyu unit fixed to the main body concentrically with the main shaft, 8.9 is a turret tool rest arranged symmetrically with respect to the center line of the main shaft, and turret tool rest 8 is used to control the rotation of the servo motor 6. The turret tool rest 9 slides back and forth toward the center of the main spindle under the rotational control of the ball locking mechanism, and similarly to the tool rest 8, the turret tool rest 9 moves toward the center of the main shaft under the rotational control of the ball screw 11 through the rotational control of the servo motor 10. It is arranged so that it can slide forward and backward. 12.13 is an indexing actuator for selecting the cutter of the turret tool rest 8.9. And turret tool rest 8
.. Back processing is performed by the engagement action between the workpiece and the cutter due to the blade index selection at 9, the forward/backward sliding control of the turret tool rest 8.9 with respect to the main axis center, and the forward/backward sliding control of the main spindle 2. Reference numeral 20 denotes a sub-spindle for back processing disposed on the side facing the guide bushing unit 5, and is provided on the sliding guide portion 14 formed on the main body parallel to the center line of the main axis of the main spindle 2. The slider 15 is slidably arranged on the main spindle 2 by controlling the rotation of the ball screw 18 by controlling the rotation of the servo motor 16.
It is formed so that it can slide forward and backward in unison with the Further, the sub-spindle 20 is configured to be able to slide on the slider I5 in a direction perpendicular to the center line of the main axis of the sub-spindle 20 by controlling the rotation of the ball screw 19 by controlling the rotation of the servo motor 17. Reference numeral 21 denotes a servo motor for driving and rotating the sub-spindle 20, and like the main spindle 2, it has a known rotary drive mechanism and also has a chuck opening/closing mechanism for gripping the workpiece when the back processing is completed. There is. A turret 22 is disposed on the main body 1 on the side facing the main spindle 2 at a position that does not interfere with the sliding of the turret turret 8.9, and is used for surface machining based on the shape of the workpiece. A knife 23 is set.

以上、もが成の本発明自動旋盤において次に動作作用に
ついて説明する。
The operation of the automatic lathe according to the present invention will now be described.

部品の裏加工が完了すると共に、タレット刃物台8又は
9にセットされた突切り刃物により裏加工長分を見込ん
だ所定位置にて加工部品が切落される。この切落し工程
においてメインスピンドル2と相対向する位置に位置決
め駆動制御されたサブスピンドル20がサーボモータ1
6の駆動により摺動ガイド部14を摺動ガイドとしてス
ライダー15と一体に前進摺動し裏加工部品を把持する
。なお、この時はいうまでもなく、サブスピンドル20
の回転はサーボモータ21の回転制御によりメインスピ
ンドル2の回転と同期回転している。切落し工程が完了
するとサブスピンドル2oはサーボモータ16の駆動に
よりスライダー15と一体に後退摺動する。
When the back machining of the part is completed, the part to be machined is cut off at a predetermined position, taking into account the back machining length, by a cutting blade set on the turret tool rest 8 or 9. In this cutting process, the sub-spindle 20, which is positioned and driven to face the main spindle 2, is driven by the servo motor 1.
6, the sliding guide portion 14 is used as a sliding guide to slide forward together with the slider 15 to grip the back-processed part. At this time, it goes without saying that the sub spindle 20
The rotation is synchronous with the rotation of the main spindle 2 under rotation control of the servo motor 21. When the cutting process is completed, the sub-spindle 2o is driven by the servo motor 16 to slide backward together with the slider 15.

後退摺動完了すると、サーボモータ17の回転制御によ
りサブスピンドル20を主軸中心線と直交する方向へス
ライダー15上を摺動制御すると共に、前記サーボモー
タ16の回転制御による主軸中心線方向への摺動による
組合せ制御により表加工用刃物23に対し、表加工終了
部品の未加工部を係合作用せしめることにより裏加工が
行われる。この裏加工時においては、いうまでもなく、
前記メインスピンドル2とツインタレット刃物台8.9
との間の駆動制御に基づき、次部品の裏加工が同時に行
われている。
When the backward sliding is completed, the sub-spindle 20 is controlled to slide on the slider 15 in the direction orthogonal to the spindle center line by the rotation control of the servo motor 17, and the slide in the direction of the spindle center line is controlled by the rotation control of the servo motor 16. Back processing is performed by engaging the front processing cutter 23 with the unprocessed portion of the front processing completed part through dynamic combination control. Needless to say, during this back processing,
The main spindle 2 and twin turret tool rest 8.9
Based on the drive control between the two parts, the back processing of the next part is being performed at the same time.

なお、本実施例においては、ツインタレット自動旋盤に
本発明を適用し、加工能力を最大限に発揮できる主軸摺
動タイプ自動旋盤について説明したが、主軸固定タイプ
自動旋盤、例えば、タレット刃物台とガイドブツシュと
が主軸軸方向に摺動制御できるよう構成された自動旋盤
等にも適用でき、又、サブスピンドルにおける主軸中心
線に対刃物も、その部品形状により任意にセットされる
が、これら組合せ変形は本発明の要旨を変更するもので
はなく、部品の加工において、裏加工と裏加工とを互い
に干渉することなく同時加工することにある。なお、孔
あけ加工、キー溝加工等の2次加工についてもいうまで
もなく、その加工部品形状に基づく、2次加工位置によ
り裏加工工程、でも精度をおとすことなく剛性のある刃
物を使用しての重切削が可能となるため、加工部品形状
に対する種々の制約がなくなり加工範囲が広くなり、且
、裏加工と裏加工とを互いに干渉することのない構成と
したため、裏加工においてはツインタレット刃物台の機
能をフルに生かした加工ができると共に、裏加工におい
ては前記の如く機能を有するため、生産性向上をはかる
ことができる。
In this example, the present invention was applied to a twin-turret automatic lathe, and a sliding-spindle type automatic lathe that can maximize machining capacity was described. It can also be applied to automatic lathes etc. that are configured so that the guide bush can be controlled to slide in the direction of the spindle axis, and the counter-cutting tool can also be set arbitrarily at the center line of the spindle in the sub-spindle depending on the shape of the part. The combination deformation does not change the gist of the present invention, and the purpose is to perform back processing and back processing simultaneously without interfering with each other in processing parts. It goes without saying that secondary machining such as drilling and keyway machining may also be performed, but depending on the position of the secondary machining based on the shape of the processed part, a rigid blade may be used without sacrificing accuracy. Since heavy cutting is possible with all the parts, various restrictions on the shape of the machined parts are eliminated, and the machining range is widened.In addition, the back machining and back machining are configured so that they do not interfere with each other, so twin turrets are used for back machining. In addition to being able to perform machining that makes full use of the functions of the tool post, productivity can be improved because it has the above-mentioned functions in back machining.

更には、裏加工・裏加工の他、2次加工についても、そ
の形状、位置により、効率のよい条件に基づく加工がで
きる等実用上の効果大である。
Furthermore, in addition to back processing and back processing, secondary processing can also be performed based on efficient conditions depending on the shape and position, which has great practical effects.

【図面の簡単な説明】[Brief explanation of the drawing]

Claims (1)

【特許請求の範囲】[Claims] 加工材を中心として、加工材に対して進退摺動制御でき
るよう配設されたツインタレット刃物台、及び、加工材
の先端支持を行うためのガイドブッシュを有する自動旋
盤において、前記タレット刃物台は、表加工用刃物を有
し、表加工を行うと共に、前記ガイドブッシュと相対向
する位置に前記表加工終了部品を把持するためのチャッ
ク開閉機構と回転駆動機構を有したサブスピンドルを有
し、該サブスピンドルは、前記表加工を行うメインスピ
ンドル主軸中心線と平行に進退摺動できるよう配設して
なり、一方、前記タレット刃物台の摺動に対して干渉し
ない位置には裏加工用刃物台を有すると共に、前記サブ
スピンドル、もしくは、前記裏加工用の刃物台の少くと
も一方が主軸中心線とは直交する方向に摺動制御できる
よう構成してなることを特徴とする自動旋盤。
In an automatic lathe having a twin turret tool rest arranged so as to be able to control the forward and backward sliding relative to the workpiece, and a guide bush for supporting the tip of the workpiece, the turret tool rest is , having a surface machining cutter, performing surface machining, and having a sub-spindle having a chuck opening/closing mechanism and a rotation drive mechanism for gripping the surface-machined part at a position opposite to the guide bush; The sub-spindle is arranged so that it can slide back and forth parallel to the center line of the main spindle of the main spindle that performs the surface machining, while a back-machining cutter is located at a position that does not interfere with the sliding movement of the turret tool rest. 1. An automatic lathe comprising a stand and configured such that at least one of the sub-spindle or the back-machining turret can be controlled to slide in a direction perpendicular to a spindle centerline.
JP21553286A 1986-09-12 1986-09-12 Automatic lathe Pending JPS6374504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21553286A JPS6374504A (en) 1986-09-12 1986-09-12 Automatic lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21553286A JPS6374504A (en) 1986-09-12 1986-09-12 Automatic lathe

Publications (1)

Publication Number Publication Date
JPS6374504A true JPS6374504A (en) 1988-04-05

Family

ID=16673987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21553286A Pending JPS6374504A (en) 1986-09-12 1986-09-12 Automatic lathe

Country Status (1)

Country Link
JP (1) JPS6374504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02232102A (en) * 1989-03-01 1990-09-14 Star Micronics Co Ltd Remainder machining in nc lathe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02232102A (en) * 1989-03-01 1990-09-14 Star Micronics Co Ltd Remainder machining in nc lathe

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