JPS6044201A - Cam lathe - Google Patents

Cam lathe

Info

Publication number
JPS6044201A
JPS6044201A JP14940183A JP14940183A JPS6044201A JP S6044201 A JPS6044201 A JP S6044201A JP 14940183 A JP14940183 A JP 14940183A JP 14940183 A JP14940183 A JP 14940183A JP S6044201 A JPS6044201 A JP S6044201A
Authority
JP
Japan
Prior art keywords
cam
lathe
crown
small
spindle
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
JP14940183A
Other languages
Japanese (ja)
Inventor
Nobuaki Murakami
信明 村上
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP14940183A priority Critical patent/JPS6044201A/en
Publication of JPS6044201A publication Critical patent/JPS6044201A/en
Pending 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
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
    • B23Q35/109—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a continuously turning pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Copy Controls (AREA)
  • Turning (AREA)

Abstract

PURPOSE:To enable a small-sized spindle with small rigidity to be used in a cam lathe, so as to provide a small-sized lathe by introducing a pressure compensating mechanism on the anti-cam surface side of a crown cam. CONSTITUTION:The compensating pressure whose magnitude is determined by the shape of the cam surface of a compensating cam 11 and also by the initial displacement of a compensating spring 12, is applied to a crown cam 3 from the anti-cam surface side. Due to this pressure, the pressing force of a compressing spring 9 is cancelled out and accordingly, the force exerted from the crown cam 3 to a lathe spindle 4 becomes approximately zero all the time. Thus, a lathe spindle with low rigidity can be used as the lathe spindle 4. As a result, small- sized spindle 4 and its bearing mechanism can be employed and the construction of the lathe itself can be small-sized.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、例えばシリンダの局面全加工するために使用
するカム旋盤装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in a cam lathe device used, for example, for machining the entire surface of a cylinder.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来、この種の装置としで、例えば第１図に示す如きも
のがある。すなわち、この装置１は、液力ロエ物として
のシリンダＪｋチャ、ゾク２で挾持し、このチャック２
をクラウンカム３とともに旋盤主軸４に軸着してこの旋
盤上ｍ４に回転駆動することにより上記シリンダ１およ
びクラウンカム３を回転させている。−万、加工具とし
てのバイト５を切込台６に保持し、かつこの切込台６を
往復台７に取着している。そして、この往復台７に固定
したカムフォロγ８を圧縮はね９により上記クラウンカ
ム３のカム面に当接追従させ、これにより往復台７を矢
印Ａ方向に往復移動させてバイト５をシリンダｌの周面
に沿って軸方向に移動させ、シリンダ１周面の切削カロ
エを行なっている。なお、上記バイト５のシリンダ１周
面に対する切込み深さは、油圧機構により切込台６を移
動させることにより調整する。このような装置は、クラ
ウンカム３のカム形状を適宜選択することにより、比較
的容易に所望形状の加工を行なうことができ、非常に有
用である。Conventionally, there has been a device of this type, for example, as shown in FIG. That is, this device 1 is clamped by cylinders Jk and Zoku 2 as hydraulic parts, and this chuck 2
The cylinder 1 and the crown cam 3 are rotated by being pivotally mounted together with the crown cam 3 on the lathe main shaft 4 and rotationally driven onto the lathe top m4. - A cutting tool 5 as a processing tool is held on a cutting table 6, and this cutting table 6 is attached to a carriage 7. Then, the cam follower γ8 fixed to the carriage 7 is caused to contact and follow the cam surface of the crown cam 3 by means of the compression spring 9, thereby reciprocating the carriage 7 in the direction of arrow A and moving the cutting tool 5 to the cylinder l. It is moved in the axial direction along the circumferential surface to cut the circumferential surface of the cylinder 1. The cutting depth of the cutting tool 5 into the circumferential surface of the cylinder 1 is adjusted by moving the cutting table 6 using a hydraulic mechanism. Such a device is very useful because it can relatively easily process the crown cam 3 into a desired shape by appropriately selecting the cam shape.

ところが、このような従来の加工装置は、次のような欠
点があった。すなわち、クラウンカム３のカム面形状に
従って高精度の加工を行なうためには、カム面に対する
カムフォロア８の押圧力を太き（する必要がある。しか
るに、このようにクラウンカム３への押圧力音大きくす
ると、旋盤上ｌｌｌＩ４にカロわる力が増大し、この結
果旋盤主軸４の剛性を高めなければならず、これにより
旋盤主軸４およびその軸受機構の大形化を招いて装置が
大形で高価となる欠点があっｆ−０ 〔発明の目的〕 本発明は、剛性が小さく小形の主軸を使用可能とし、小
形で安価なカム旋盤装置を提供すること全目的とする。However, such conventional processing equipment has the following drawbacks. That is, in order to perform high-precision machining according to the cam surface shape of the crown cam 3, it is necessary to increase the pressing force of the cam follower 8 against the cam surface. If the size is increased, the force exerted on the lathe will increase, and as a result, the rigidity of the lathe main shaft 4 must be increased, which results in an increase in the size of the lathe main shaft 4 and its bearing mechanism, making the device large and expensive. OBJECTS OF THE INVENTION The overall object of the present invention is to provide a small and inexpensive cam lathe device that allows the use of a small main shaft with low rigidity.

〔発明の概要〕[Summary of the invention]

本発明は、上記目的を達成するために、クラウンカムの
反カム面側に圧力補償機構を設け、この機構により７１
１１１工部によるクラウンカムへの押し付は力を相殺す
る方向にクラウンカムの反カム面に押圧力を与え、これ
により主軸に加わる力を低減するようにしたものである
。In order to achieve the above object, the present invention provides a pressure compensation mechanism on the opposite cam surface side of the crown cam, and by this mechanism, 71
The pressing force applied to the crown cam by the 111 section is such that a pressing force is applied to the opposite cam surface of the crown cam in a direction that cancels out the force, thereby reducing the force applied to the main shaft.

〔発明の実施例〕[Embodiments of the invention]

第２図は、本発明の一実施例におけるカム旋盤装置の概
略構成図である。なお、同図において前記第１図と同一
部分には同一符号を付して詳しい説明は省略する。FIG. 2 is a schematic diagram of a cam lathe device according to an embodiment of the present invention. In this figure, the same parts as those in FIG. 1 are given the same reference numerals and detailed explanations will be omitted.

クラウンカム３の反カム面側には、圧力補償機構１０が
設けである。この圧力補償機構ＩＯは、クラウンカム３
の反カム面にこのカム３と一体に設けられた補償カム１
１と、この補償カムＩＩのカム面に所定の圧力で当接す
る補償ばね１２と力）ら構成されている。上記補償カム
Ｚ１のカム面形状（マ、次のように定められている。す
なわち、カムフォロア８による押し付けにより旋盤主軸
４に卯わる力Ｆｉま、 Ｆ　＝　ｋｔ＋　ｋｘ　＋　ｍ又 で表わされる。ただし、 ｋ：圧縮ばね９のばね定数 ｔ：初期ばね変位量 χ：クラウンカム３の主軸方向への変位量ｍ：往復台７
とこれに支持された各部の総重量 菫：クラウンカム３の主軸方向への〃口速度である。そ
して、補償ばね１２のばね定数ｆＫとすると、この補償
ばね１２によるクラウンカム３の主軸４への変位量ｙは
、 で表わされ、この変位量ｙに相当する起伏を補償カムＩ
Ｚのカム面に形成すればよいことになる０ また、補償はねＩ２の初期変位量りは、しｌ となるように設定する。A pressure compensation mechanism 10 is provided on the opposite side of the crown cam 3. This pressure compensation mechanism IO has a crown cam 3.
Compensation cam 1 is provided integrally with this cam 3 on the opposite cam surface of
1, a compensating spring 12 that contacts the cam surface of the compensating cam II with a predetermined pressure, and a force. The cam surface shape of the compensation cam Z1 is determined as follows. That is, the force Fi applied to the lathe main shaft 4 due to the pressing by the cam follower 8 is expressed as F = kt + kx + m. However, k: Spring constant of compression spring 9 t: Initial spring displacement amount χ: Displacement amount of crown cam 3 in the main axis direction m: Reciprocating table 7
and the total weight of each part supported by the crown cam 3. This is the mouth speed of the crown cam 3 in the main axis direction. Then, assuming that the spring constant fK of the compensation spring 12 is the displacement amount y of the crown cam 3 toward the main shaft 4 due to the compensation spring 12, the undulation corresponding to this displacement amount y is expressed by the compensation cam I
The initial displacement of the compensation spring I2 is set to be 1.

このように構成すれば、クラウンカム３には、反カム面
側から上記補償カム１１のカム面形状および補償ばね１
２の初期変位量りにより定まる補償圧力が印加されるた
め、この圧力により圧縮ばね９による押圧力が相殺され
て、クラウンカム３から旋盤主軸４に加わる力は常に権
＆零となる。したがって、旋盤主軸４は低剛性のもので
もよいことになり、この結果主軸４Ｊ３よびその軸受機
構は小形化され、装置全体の構造も小形化される。従来
装置では、例えば旋盤主軸４に７１［１わる力は約１０
〜２０　ｋｇであり、これに耐え得る主＃Ｉ軸受機借が
必要であったが、本実施例であれば比較的安価で高精度
の空気軸受等の使用が可能となり、その効果は極めて大
きい。With this configuration, the cam surface shape of the compensation cam 11 and the compensation spring 1 are attached to the crown cam 3 from the opposite cam surface side.
Since a compensation pressure determined by the initial displacement measurement 2 is applied, the pressing force by the compression spring 9 is canceled out by this pressure, and the force applied from the crown cam 3 to the lathe main shaft 4 is always equal to zero. Therefore, the lathe main shaft 4 may be of low rigidity, and as a result, the main shaft 4J3 and its bearing mechanism are downsized, and the structure of the entire apparatus is also downsized. In the conventional device, for example, a force of 71[1] applied to the lathe main shaft 4 is approximately 10
~20 kg, and it was necessary to borrow a main #I bearing that could withstand this weight, but with this example, it is possible to use a relatively inexpensive, high-precision air bearing, etc., and the effect is extremely large. .

また、主軸４の剛性を考慮することなく、クラウンカム
３には太きな力でカムフォロア８を押し付けることがで
きるようになるので、クラウンカム３のカム面に対する
カムフォロア８の密接度を高めることができるので、加
工精度をさらに高めることができる。Furthermore, since the cam follower 8 can be pressed against the crown cam 3 with a large force without considering the rigidity of the main shaft 4, the closeness of the cam follower 8 to the cam surface of the crown cam 3 can be increased. As a result, processing accuracy can be further improved.

なお、本発明は上記実施例に限定されるものではない。Note that the present invention is not limited to the above embodiments.

例えば、圧力補償機構（ま、第３図に示す如く補償ばね
１３の基端部１４を軸方向′（図中矢印Ｂ）に移動させ
ることにより、主軸ｙ　： に なる変位量に相当する圧力を発生させるようにしてもよ
い。For example, by moving the base end 14 of the compensation spring 13 in the axial direction' (arrow B in the figure) by moving the base end 14 of the compensation spring 13 as shown in FIG. It may be made to occur.

〔発明の効果〕〔Effect of the invention〕

以上詳述したように本発明によれば、クラウンカムの反
カム面側に圧力補償機構を設け、この機構により７Ｉ］
１工部によるクラウンカムへの押し付は力を相殺する方
向にクラウンカムの反カム面に押圧力を与え、これによ
り主軸に加わる力を・低減するようにしたものである。As described in detail above, according to the present invention, a pressure compensation mechanism is provided on the opposite cam surface side of the crown cam, and this mechanism enables 7I]
The pressing force applied to the crown cam by the first working part applies a pressing force to the opposite cam surface of the crown cam in a direction that cancels out the force, thereby reducing the force applied to the main shaft.

したがって本発明によれば、剛性が小さく小形の主軸を
使用可能とし、小形で安価なカム旋盤装置全提供するこ
とができる。Therefore, according to the present invention, it is possible to use a small main shaft with low rigidity, and it is possible to provide a small and inexpensive cam lathe device.

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

第１図は従来におけるカム旋盤装置の概略構成図、第２
図は本発明の一実施例におけるカム旋盤装置の概略構成
図、第３図は本発明の他の実施例におけるカム旋盤装置
の主要部分を示す概略構成図であるｄ ｌ・・・シリンダ、２・・・チャック、３・・・クラウ
ンカム、４・・・旋盤主軸、５・・・バイト、６・・・
切込台、７・・・往復台、８・・・カムフォロア、９・
・・圧縮ばね。 １０・・・圧力補償機構、Ｉｌ・・・補償カム、ｒ２゜
１３・・・補償ばね、１４・・・基端部。 出願人代理人　弁理士　鈴　江　武　彦カ１図 浄２図 叫 矛３図 ７１Ｊ　ｅ５Figure 1 is a schematic configuration diagram of a conventional cam lathe device;
The figure is a schematic configuration diagram of a cam lathe device according to an embodiment of the present invention, and FIG. 3 is a schematic configuration diagram showing the main parts of a cam lathe device according to another embodiment of the present invention. ...Chuck, 3...Crown cam, 4...Lathe spindle, 5...Bite, 6...
Cutting table, 7... Reciprocating table, 8... Cam follower, 9.
・Compression spring. DESCRIPTION OF SYMBOLS 10... Pressure compensation mechanism, Il... Compensation cam, r2°13... Compensation spring, 14... Base end part. Applicant's agent Patent attorney Suzue Takehiko Ka1 Figure 2 Figure 3 Figure 71J e5

Claims (1)

【特許請求の範囲】[Claims] 被ＪＪＯ工物を取着した旋盤主軸にクラウンカムを軸清
し、このクラウンカムのカム面に工Ｊｌｆ支持した加工
部を当接させてこのカム面の起伏に追従してならい加工
を行ｆＳうカム族で）：１装置において、前記クラウン
カムの反力ｌ・面に、前記加工部によるクラウンカムへ
の当接圧力を相殺する方向に圧力金印７Ｊｎする圧力補
償機構を設けたことを特徴とするカム旋盤装置。A crown cam is installed on the main spindle of the lathe on which the JJO workpiece is attached, and the machining part supported by the machine Jlf is brought into contact with the cam surface of this crown cam, and the machining is performed by following the ups and downs of this cam surface fS In the U-cam family): 1 device, a pressure compensation mechanism is provided on the reaction force l surface of the crown cam to apply pressure in a direction that offsets the contact pressure on the crown cam by the processed part. Features of the cam lathe device.
JP14940183A 1983-08-16 1983-08-16 Cam lathe Pending JPS6044201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14940183A JPS6044201A (en) 1983-08-16 1983-08-16 Cam lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14940183A JPS6044201A (en) 1983-08-16 1983-08-16 Cam lathe

Publications (1)

Publication Number Publication Date
JPS6044201A true JPS6044201A (en) 1985-03-09

Family

ID=15474319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14940183A Pending JPS6044201A (en) 1983-08-16 1983-08-16 Cam lathe

Country Status (1)

Country Link
JP (1) JPS6044201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419576A (en) * 1987-07-14 1989-01-23 Kowa Spinning Flexible disk managing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419576A (en) * 1987-07-14 1989-01-23 Kowa Spinning Flexible disk managing device

Similar Documents

Publication Publication Date Title
US4388027A (en) Process for milling long workpieces
CN207953285U (en) A kind of working table combined clamp of CNC machining centers
JPS6044201A (en) Cam lathe
JPH1190822A (en) Work rest device
JPH0120021Y2 (en)
JPS55112758A (en) Plane surface grinder
JPS5621031A (en) Radial clearance gauge for cylindrical roller bearing
JPH0523893B2 (en)
CN220783108U (en) CNC equipment processing scale adjusts structure
SE8405580D0 (en) DEVICE FOR GRINDING OF PLAN SURFACES AT THE WORK PIECE
GB785548A (en) Improvements in and relating to milling machines
ES245513U (en) Rotary cutting tool
JPS6020801A (en) Machining device of cylinder
JP3037811U (en) Inspection jig for regrinding end mills with a desktop grinder
JPS6331884Y2 (en)
JPS604680Y2 (en) Fabric polishing device
JPS5940562B2 (en) Centering device for workpiece materials in machine tools
JPS6035526Y2 (en) Outer diameter floating diaphragm chuck
GB1042492A (en) A machine tool for working toothed wheels by means of a toothed tool, comprising a device for measuring the forces acting on the toothed tool or toothed wheel
JPH0351094Y2 (en)
JPS6393556A (en) Rotary surface grinder
GB911217A (en) Gear honing machine
JPH0239737Y2 (en)
JPH05228793A (en) Working method for accurate thin wall cylinder
SU884877A1 (en) Apparatus for simultaneous working of two inner chamfers