JPS58202703A - Machining device into oval shape - Google Patents
Machining device into oval shapeInfo
- Publication number
- JPS58202703A JPS58202703A JP8293082A JP8293082A JPS58202703A JP S58202703 A JPS58202703 A JP S58202703A JP 8293082 A JP8293082 A JP 8293082A JP 8293082 A JP8293082 A JP 8293082A JP S58202703 A JPS58202703 A JP S58202703A
- Authority
- JP
- Japan
- Prior art keywords
- center line
- tool
- spindle
- fixed
- cutting
- 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
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
- B23Q27/00—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass
- B23Q27/003—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass of conical non-circular section manufactured by an apparatus with a first rotational cutting vector and a second linear feed vector, intersecting the first vector
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はピストン等の円筒状の外周面を有する〃０工物
の外周面の軸方向に直角な断面状を、補出状に加工する
装置に関するものであるＯエンジンなどのピストンの熱
膨張による焼付きを防止するために、その円筒状外周面
の軸方向に直角な断面形状を楕円状に加工することが広
く行わｎている。従来のピストンの外周加工装置はカム
による倣い切削によっているため、カムに追従する速度
に限界があり、尚速切削は困難で、高速切削によって生
する鏡面仕上ができなかつｆｃ。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for machining a cross-sectional shape perpendicular to the axial direction of the outer circumferential surface of a zero workpiece having a cylindrical outer circumferential surface, such as a piston, into a supplementary shape. In order to prevent pistons from seizing due to thermal expansion, it is widely practiced to process the cross-sectional shape of the cylindrical outer circumferential surface perpendicular to the axial direction into an elliptical shape. Conventional piston peripheral machining equipment uses a cam to perform profile cutting, so there is a limit to the speed at which it can follow the cam, making it difficult to cut at high speeds, and the mirror finish produced by high-speed cutting cannot be achieved.
本発明はこのような従来の楕円加工装置の問題点を解決
することを目的とするもので、チャックに固定さ扛たピ
ストン等の加工物の中心線と高速回転するスピンドルの
先端に取付けらｎた回転バイトの中心線とを僅かな角度
θでもって傾斜させた状態で、バイトを超高速回転させ
て加工することにエフ、加工さ扛た外周の軸直角断面形
状を鏡面仕上に近い加工精度で所望の楕円形状に能率的
に仕上けることを可能とした楕円加工装置に関するもの
である。The purpose of the present invention is to solve the problems of the conventional ellipse machining device, and the present invention aims to solve the problems of the conventional ellipse machining device. The cutting tool is rotated at ultra-high speed while the center line of the rotating cutting tool is tilted at a slight angle θ, and the cutting tool is rotated at ultra-high speed. The present invention relates to an ellipse processing device that can efficiently finish a desired ellipse shape.
以下本発明の実施例を図面について説明すると、ペース
（１）上に載置さｎ−ｆｅ−Ｎ密静圧スピンドル（２）
に高速筺精度回転可能なスピンドル（３）が取付けら扛
スピンドノリ３）の先端には円筒状のバイトホルダ（４
）が固着さｎている。バイトホルダ（４）の先端に近く
、軸方向に僅かに偏位させて粗切削用バイト（５）と仕
上切削用バイト（６）か刃先をバイトホルダの内周面か
ら突出させて、バランスがとｎるようにほぼ対向させて
取付けらｎｌそｎぞｎ位置決め用セットホルト（７）
、（８）によって位置決めさｎている０スピンドル（３
）は駆動モータ（９）により１駆鋤モータのブーＩＪ（
ｉｆ）、図示しないベルト、スピンドル側のプ〜すαη
を経て冒速回転可能となっている。一方、ペース（１〕
上に揺動基準ヒンＱ４によりスピンドル（３）の軸線に
対して傾斜可能に取付けら′ｎたユニッ） Ｃ１ｌの摺
動台α◆には静圧スライドテーブルα１が摺動自在に載
置さｎ１スライドテーブル（１５に載置さｎたチャック
台ＯＱに固着さｎたチャックｑηによって被加工物であ
るピストンμｓが固定把持さｎている。スライドテーブ
ルＱうは摺動台αゆに取付けた早送り、切削送りの切換
可能なモータ（９）に直結さｆ′したホールねじ（７）
により、ピストン明及び固定チャックＱ力は軸方向に摺
動可能となっている。ユニット回転ｍα４はスピンドル
の中心線Ｑυと加工物の中ノＬ・線□□□の交点に）の
真下に設けらｎていて、加工物の楕円を決定するための
摺動台αゆの角度θを位置決めできるようになっている
。この傾斜角θは第３図において求めるべきピストンの
断面形状の楕円（ハ）の短軸ｑと長軸に）の比、短軸／
長軸＝ＣＯ８θとなる角度として求めらするＯ
本発明の加工装置で加工するには回転しない加工物たと
えはピストンＱ榎の中心線に対して、回転バイトの中心
線すなわちスピンドル（３）の中１シ・線を僅かの角度
θだけ傾け、その交点（財）を通るスピンドルの中心線
に直角な面上に仕上切削用バイト（６）が、刃先の位置
かあらかじめ計算して求めらｎた楕円（ハ）の長袖（７
）になるようにセットボルト（８）で位置決めする０次
に仕上代だけを考慮して前方、ＲＩＪち図において左方
に粗切削バイト（５）を位置決めしてセットホルト（７
）で固定する。そこでスライドチー７゛ルα→を右端に
後退させ、チャックＱ２５に加工物Ｃ１樽であるピスト
ンを固着し、駆動用モータ（９）によりスピンドル（３
）を冒速回転きせる。その状態で切１’ｌｌｊ ？由を
カニけながらスライドチー７゛ル（ハ）をもった鏡面状
の楕円筒を得ることができる。An embodiment of the present invention will be described below with reference to the drawings. An n-fe-N tight hydrostatic spindle (2) placed on a pace (1)
A cylindrical tool holder (4) is attached to the tip of the spindle (3) that can rotate with high speed and precision.
) is fixed. Close to the tip of the tool holder (4), slightly deviated in the axial direction so that the cutting edges of the rough cutting tool (5) and the finishing tool (6) protrude from the inner peripheral surface of the tool holder to maintain balance. The positioning set holders (7) are installed so that they are almost facing each other.
, (8) is positioned by the n0 spindle (3
) is driven by the drive motor (9) to drive the 1-drive plow motor Boo IJ (
if), belt (not shown), spindle side push αη
After that, it is possible to rotate at high speed. On the other hand, pace (1)
A static pressure slide table α1 is slidably placed on the sliding table α◆ of C1l (a unit mounted on the top of the unit so as to be tiltable with respect to the axis of the spindle (3) by a swing reference hinge Q4). A piston μs, which is a workpiece, is fixedly gripped by a chuck qη fixed to a chuck stand OQ placed on a slide table (15). , a hole screw (7) directly connected to a motor (9) that can switch the cutting feed.
This allows the piston light and the fixed chuck Q force to slide in the axial direction. The unit rotation mα4 is installed directly below the intersection of the center line Qυ of the spindle and the center line of the workpiece It is possible to position θ. This inclination angle θ is the ratio of the short axis q to the long axis of the ellipse (c) of the cross-sectional shape of the piston to be determined in Fig. 3, and the short axis /
Obtained as the angle such that long axis = CO8θ 1. Tilt the line by a slight angle θ, and place the finish cutting tool (6) on a plane perpendicular to the center line of the spindle that passes through the intersection of the lines, and calculate the position of the cutting edge in advance. Oval (C) long sleeves (7
) Position the rough cutting tool (5) with the set bolt (8) to the front, taking only the finishing allowance into consideration, and position the rough cutting tool (5) to the left in the RIJ diagram.
) to fix it. Therefore, the slide tool 7゛el α→ is retreated to the right end, the piston, which is the barrel of workpiece C1, is fixed to the chuck Q25, and the spindle (3) is driven by the drive motor (9).
) can be rotated at high speed. Can you cut it in that state? By understanding the reason, it is possible to obtain a mirror-like elliptical cylinder with a slide jaw (c).
本発明は上述のように加工物ｖｂ定し、加工物の中心線
と回転バイトの中心線を僅力・の角度θだけ傾けること
により幾何学的に加工さｎた外周の軸直角断面形状を楕
円とすることができ、高速切削ができるので、加工物の
外周面を鏡面状に仕上けることができる０しかも粗切削
用と仕上切削用のバイトを対向させて取付けであるので
バランスかとｎ１高能率、尚精度に所望の楕円形状に容
易に加工することかできるのである。The present invention defines the workpiece vb as described above, and by tilting the centerline of the workpiece and the centerline of the rotating tool by a slight angle θ, the cross-sectional shape perpendicular to the axis of the outer periphery is geometrically machined. It can be made into an ellipse, and high-speed cutting is possible, so the outer circumferential surface of the workpiece can be finished to a mirror-like finish.In addition, the tools for rough cutting and finishing cutting are installed facing each other, so the balance and n1 height can be improved. It can be easily processed into a desired elliptical shape with efficiency and accuracy.
図面は本発明の一笑施例を示し、第１図は一部を切欠い
た平面図、第２図は正面図、第３図は加工物の断面形状
の説明図である。
ｉｌ＋・・・ペース（３Ｊ・・・スピンドル（４）・・
・バイトホルダ （５）・・・粗切削用バイト（６）
・・・仕上切削用バイト αＪ・・・ユニットｑう・・
・スライドテーブル αη・・・１ｈ定チヤツクＣ１ｌ
・・・加工物 （ハ）・・・スピンドルの中
心線磐・・・加工物の中心線 （社）・・・交 点（ハ
）・・・楕 円 （ハ）・・・短 径に）・・
・長 径
代理人弁理士 河 内 潤 ニ
特開昭５８−２０２７０３（４）
第３図The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway plan view, FIG. 2 is a front view, and FIG. 3 is an explanatory diagram of the cross-sectional shape of a workpiece. il+...Pace (3J...Spindle (4)...
・Bite holder (5)...Rough cutting tool (6)
... Finish cutting tool αJ... Unit q...
・Slide table αη...1h constant chuck C1l
... Workpiece (C) ... Center line of the spindle (Iwa) ... Center line of the workpiece (C) ... Intersection (C) ... Ellipse (C) ... Minor axis)・・・
・Long diameter patent attorney Jun Kawauchi 2 Japanese Patent Publication No. 58-202703 (4) Figure 3
Claims (1)
ドルの先端しこ内周（８）に粗切削用バイトと仕上切削
用バイトをほぼ対向させて突設した円筒状のバイトホル
タを固着し、ベース上にスピンドルの中心線に対して傾
斜可能に取付けら扛たユニット上に、加工物の固定チャ
ックの軸方向に摺動可能に載置さ７″したフライトテー
ブル上に固着さｎた加工物の固定チャックとを具え、ス
ピンドルの中心線と固定チャックに固定された加工物の
中上・線を楕円の短径／長径−Ｃｏｓθとなる僅かの傾
斜角θで交わらせ、仕上切削用バイトをスピンドルの中
上・勝と固定チャックの中心線との叉点を含むスピンド
ルの中心線に直角な平面上に位置させて、固定チャック
ｅＣ軸力向の切込み送！ｌｌを与えて切削することを特
命とするピストン等の円筒面の楕円加工装置A cylindrical tool holder is fixed on the inner periphery (8) of the tip of the spindle, which is remounted on the base and rotates fL, with a tool tool for rough cutting and a tool tool for finishing cutting projected almost opposite each other. The unit was mounted on the base so that it could be tilted with respect to the center line of the spindle, and was fixed on a 7" flight table that was slidably mounted in the axial direction of the workpiece fixing chuck. The center line of the spindle and the upper middle line of the workpiece fixed to the fixed chuck intersect at a slight angle of inclination θ, which is the short axis/long axis of the ellipse - Cos θ, for finishing cutting. Position the cutting tool on a plane perpendicular to the center line of the spindle that includes the intersection of the upper center of the spindle and the center line of the fixed chuck, and cut by applying cutting feed in the direction of the fixed chuck eC axis force. Oval processing equipment for cylindrical surfaces such as pistons with special mission
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8293082A JPS58202703A (en) | 1982-05-17 | 1982-05-17 | Machining device into oval shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8293082A JPS58202703A (en) | 1982-05-17 | 1982-05-17 | Machining device into oval shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58202703A true JPS58202703A (en) | 1983-11-26 |
Family
ID=13787946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8293082A Pending JPS58202703A (en) | 1982-05-17 | 1982-05-17 | Machining device into oval shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58202703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586476A (en) * | 1994-05-10 | 1996-12-24 | Mannesmann Aktiengesellschaft | Process and device for machining bars, tubes or tube blanks |
| JP2008100290A (en) * | 2006-10-17 | 2008-05-01 | Jtekt Corp | Method for machining shaft-like member |
-
1982
- 1982-05-17 JP JP8293082A patent/JPS58202703A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5586476A (en) * | 1994-05-10 | 1996-12-24 | Mannesmann Aktiengesellschaft | Process and device for machining bars, tubes or tube blanks |
| JP2008100290A (en) * | 2006-10-17 | 2008-05-01 | Jtekt Corp | Method for machining shaft-like member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4336478B2 (en) | Lathe processing method | |
| JP4027856B2 (en) | Machine Tools | |
| US4242837A (en) | Fine grinding apparatus | |
| JPS58202703A (en) | Machining device into oval shape | |
| JPS5848286B2 (en) | Setsusaku Kakousouchi | |
| JPS609602A (en) | Attachment for composite machining | |
| US2470097A (en) | Radius forming device | |
| JP2001525260A (en) | Tool fixing device for drive tool spindle of machine tool adjusted steplessly | |
| JPS5929363B2 (en) | lathe | |
| JP2020082278A (en) | Machine tool and cutting method | |
| JP2843004B2 (en) | Work positioning jig | |
| US4092902A (en) | Lathe attachment for generating spherical surfaces | |
| US3557647A (en) | Auxiliary apparatus for elliptical turning of a workpiece on a multiple spindle chucking machine | |
| JPS58155104A (en) | Spherical surface machining device | |
| US1430730A (en) | Center-forming device | |
| JP3699387B2 (en) | Drilling device for a workpiece having a hole at a position eccentric from the shaft center | |
| SU1079364A1 (en) | Turning lathe centre | |
| JP2758075B2 (en) | Round surface processing machine | |
| JPS5942211A (en) | Crank shaft mirror | |
| JPH061281Y2 (en) | Check | |
| JPS6210011Y2 (en) | ||
| JP3784694B2 (en) | Crankshaft half body machining method | |
| JPS58109261A (en) | Processing device of circular-arc groove for rolling ball | |
| JPS6112083Y2 (en) | ||
| JP2002321102A (en) | Method for elliptic cutting of work piece using lathe |