JPH02250704A - Work drive device - Google Patents
Work drive deviceInfo
- Publication number
- JPH02250704A JPH02250704A JP7288089A JP7288089A JPH02250704A JP H02250704 A JPH02250704 A JP H02250704A JP 7288089 A JP7288089 A JP 7288089A JP 7288089 A JP7288089 A JP 7288089A JP H02250704 A JPH02250704 A JP H02250704A
- Authority
- JP
- Japan
- Prior art keywords
- drive pin
- top end
- drive
- work
- 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
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ドライブピン駆動とドライビングセンタ駆動
とを切り換えて両センタ支持で工作物の支持加工を行う
ワークドライブ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a work drive device that supports and processes a workpiece by switching between drive pin drive and driving center drive to support both centers.
従来の技術
従来例えば第４図、第５図に示すように両端部に比較的
小径の中心穴を有し、両端部の外径加工を含む外径及び
端面加工を必要とする加工物Ｗのドライブ方法としては
、第４図のように両センタにて工作物Ｗを支持し、面板
１０１ に固着のドライブピン１０２により工作物を駆
動する方法と、第５図のように内径把持用チャック１０
３により主軸側小径中心穴を把持して工作物Ｗを駆動す
る方法が一般的であった。2. Description of the Related Art Conventionally, for example, as shown in FIGS. 4 and 5, a workpiece W has a relatively small diameter center hole at both ends and requires outer diameter and end face machining including outer diameter machining of both ends. As a driving method, as shown in FIG. 4, the workpiece W is supported at both centers and the workpiece is driven by a drive pin 102 fixed to the face plate 101, and as shown in FIG.
A common method was to drive the workpiece W by gripping the small-diameter central hole on the spindle side by using the small-diameter center hole of the spindle.
また特開昭６２−１７６７０２号で公知の技術に、ドラ
イブピンの係合可能なカウンタウェイトを持ったカウン
タシャフトに対しては、カウンタウェイトに係脱可能な
ドライブピンを備えたカウンタウェイト駆動装置により
駆動し、カウンタウェイトを持たず端面にピン穴を有す
るクランクシャフトに対しては、ピン穴に係合するピン
入用駆動装置により駆動するようにしたものがある。Furthermore, according to the technique known in Japanese Patent Application Laid-Open No. 62-176702, for a countershaft with a counterweight that can be engaged with a drive pin, a counterweight drive device that has a drive pin that can be engaged with and detached from the counterweight is used. Some crankshafts that are driven, have no counterweight, and have a pin hole in their end face are driven by a pin drive device that engages with the pin hole.
発明が解決しようとする課題
従来の技術で述べたもののうち前者においては、ドライ
ブピン１０２が邪魔をして主軸側小径部の外径及び端面
の加工ができず、ワンチャックでの加工範囲に制約があ
り、後者においては把持中心穴の前加工状態が、振れ、
真円度等加工精度を大きく左右し、−Ｓ的に高精度な加
工が難しいという問題点を有している。Problems to be Solved by the Invention In the former method, the drive pin 102 interferes with machining the outer diameter and end face of the small diameter portion on the spindle side, which limits the machining range with one chuck. In the latter case, the pre-machined state of the gripping center hole may run out,
This has the problem that it greatly affects machining accuracy such as roundness, and it is difficult to process with high accuracy due to -S.
また特開昭６２−１７６７０２号の技術は、ワンチャッ
クで全加工を行うものではないという問題点を有してい
る。Furthermore, the technique disclosed in JP-A-62-176702 has a problem in that the entire machining cannot be performed with one chuck.
本発明は、従来の技術の有するこのような問題点に鑑み
なされたものであり、その目的とするところはワンチャ
ックでの加工範囲に制約がなく、高精度加工ができるワ
ークドライブ装置を従供しようとするものである。The present invention was made in view of the above-mentioned problems of the conventional technology, and its purpose is to provide a workpiece drive device that can perform high-precision machining without any restrictions on the machining range with one chuck. This is what I am trying to do.
課題を解決するための手段
上記目的を達成するために、本発明におけるワークドラ
イブ装置は、主軸先端同心に固着の枠体に偏心かつ回転
中心線に対し平行で軸方向の出し入れ可能に設けられた
ドライブピンと、前記枠体先端に同心に取付けられたド
ライビングセンタと、該ドライブピンを出し入れする駆
動部材とを含んでなり、加工個所に合わせてドライブピ
ンを出し入れするものである。Means for Solving the Problems In order to achieve the above object, the work drive device of the present invention is provided with a frame body fixed concentrically to the tip of the main shaft, eccentrically parallel to the rotation center line, and capable of being moved in and out in the axial direction. The machine includes a drive pin, a driving center attached concentrically to the tip of the frame, and a drive member for moving the drive pin in and out, and moves the drive pin in and out according to the processing location.
作用
ドライビングセンタと６押センタにより支持された工作
物に、ドライブビン先端を係合させて回転し、外径及び
端面等の加工を行い、ドライブピンを引っ込めて、ドラ
イビングセンタで工作物を回転して、ドライブピンの干
渉により加工できなかった個所の加工を行う。Operation The tip of the drive pin engages and rotates the workpiece supported by the driving center and the 6-push center to process the outer diameter and end face, and then the drive pin is retracted and the workpiece is rotated by the driving center. Then, machine the parts that could not be machined due to interference with the drive pin.
実施例
実施例について第１図を参照して説明する。公知のＮＣ
旋盤において、主軸台に複数の軸受により回転可能に軸
承される主軸ｌの先端同心に、ワークドライブ装置２の
枠体３が固着されている。Embodiment An embodiment will be explained with reference to FIG. Known NC
In the lathe, a frame 3 of a work drive device 2 is fixed concentrically to the tip of a main spindle l which is rotatably supported on a headstock by a plurality of bearings.
枠体３には回転中心線に対し偏心かつ平行に案内軸４が
嵌着されており、案内軸４の中心穴に、軸方向移動可能
にドライブピン５が嵌挿されている。A guide shaft 4 is fitted into the frame 3 eccentrically and parallel to the rotation center line, and a drive pin 5 is fitted into the center hole of the guide shaft 4 so as to be movable in the axial direction.
そして枠体３の主軸側の側板３ａ中心穴に、移動体６の
軸部６ａが嵌挿され、移動体６に軸部と平行に穿設され
た穴６ｂが案内軸４の外周に嵌合されており、移動体６
は案内軸４に沿って軸方向移動されるようになっている
。また枠体３内には両端部に長手方向の長大７ａ、７ｂ
を有するリンクレバー７が、枢支ピン８により枠体の回
転中心線に対する平行面上において旋回可能に枢支され
ており、リンクレバーの一方の長穴７ａは、移動体６先
端の偏心凸部６Ｃに植設されたピン９と係合され、他方
の長穴７ｂはドライブピン５に植設されたピン１０と係
合されている。そして移動体６は、主軸後端に設けられ
た図示しない回転シリンダに嵌挿されるピストンに直結
の連結棒１１とボルト１２により連結されており、回転
シリンダに供給される流体圧の切り換えにより軸方向移
動され、リンクレバー７を介してドライブピン５の先端
部が出し入れされるようになっている。更に枠体３の心
神金側の側＠３ｂの中心穴にドライビングセンタ１３が
嵌着されており、ドライビングセンタ１３の工作物に当
接するテーパ面に、円周上等間隔の回り止め用ｉｌｌ
１３ ａが刻設されており、フェイスドライビングセン
タ方式で工作物の駆動が可能となっている。一方心神ス
リーブ１４の先端テーバ穴に回転センタ】５が装着され
ており、工作物Ｗはドライビングセンタ１３と回転セン
タ１５によって支持されている。工作物Ｗは、大径部の
主軸側に軸方向の平面を有し、ドライブピンが押し出さ
れた状態で、この平面にドライブピン先端が係合して工
作物Ｗが駆動されるようになっており、ドライブピンが
引込まれた状態で、ドライビングセンタにより工作物Ｗ
の駆動が行われるようになっている。更にＮＣ制御でＸ
軸及びＺ軸方向に移動位置決め可能に設けられた図示し
ないタレント刃物台の工具取付ステーションに荒引バイ
トＴＩ、Ｔ２及び仕上バイトＴ３．Ｔ４がそれぞれ装着
されている。Then, the shaft portion 6a of the movable body 6 is fitted into the center hole of the side plate 3a on the main shaft side of the frame 3, and the hole 6b drilled in the movable body 6 parallel to the shaft portion is fitted into the outer periphery of the guide shaft 4. and moving object 6
is adapted to be moved in the axial direction along the guide shaft 4. In addition, inside the frame 3, there are long sides 7a and 7b in the longitudinal direction at both ends.
A link lever 7 is pivotably supported by a pivot pin 8 on a plane parallel to the rotation center line of the frame body, and one elongated hole 7a of the link lever is connected to an eccentric convex portion at the tip of the moving body 6. The other long hole 7b is engaged with a pin 9 implanted in the drive pin 5, and the other long hole 7b is engaged with a pin 10 implanted in the drive pin 5. The movable body 6 is connected by a connecting rod 11 and a bolt 12 that are directly connected to a piston that is fitted into a rotating cylinder (not shown) provided at the rear end of the main shaft. The tip of the drive pin 5 is moved in and out through the link lever 7. Further, a driving center 13 is fitted into the center hole of the side @ 3b on the Shinshinkin side of the frame 3, and anti-rotation illuminations are provided at equal intervals on the circumference on the tapered surface of the driving center 13 that comes into contact with the workpiece.
13a is engraved, making it possible to drive the workpiece using the face driving center method. On the other hand, a rotation center 5 is attached to the tapered hole at the tip of the Shinshin sleeve 14, and the workpiece W is supported by the driving center 13 and the rotation center 15. The workpiece W has an axial plane on the main shaft side of the large diameter part, and when the drive pin is pushed out, the tip of the drive pin engages with this plane and the workpiece W is driven. With the drive pin retracted, the workpiece W is moved by the driving center.
is now being driven. Furthermore, with NC control
Roughing tools TI, T2 and finishing tools T3. T4 is attached to each.
続いて本実施例の作用について主として第２図第３図を
参照して説明する。今ワークドライブ装置２先端のドラ
イビングセンタ１３と、心神スリーブ１４先端の回転セ
ンタ１５により工作物Ｗが支持されている。主軸後端に
設けられた回転シリンダに供給される圧油が切り換えら
れ、連結棒１１を介して移動体６が後退し、リンクレバ
ー７を介してドライブピン５が押し出され、ドライブピ
ン先端部が工作物Ｗの大径部の軸方向の平面に係合可能
となる０次いで主軸ｌが回転されて工作物Ｗがドライブ
ピン５によって回転される。そして所定の退避位置にお
いてタレット刃物台が旋回し、荒引バイトＴ２が切削位
置に割出され、タレット刃物台のＸ軸及びＺ軸方向の移
動で、大径部の外径及び端面の荒引切削加工が行われる
。次いでタレット刃物台が所定の退避位置に移動し、再
びタレット刃物台が旋回して、仕上バイトＴ４が割出さ
れ、タレット刃物台のＸ軸及びＺ軸方向の移動で荒引加
工済の大径部の外径及び端面の仕上切削加工が行われる
。次いで再びタレット刃物台が所定の退避位置に移動し
て、荒引バイトＴｌが割出され、心神台側の小径部の外
周と端面の荒引切削加工が行われ、引続いて仕上パイ）
Ｔ３が割出されて荒引加工の終わった小径部の外周と端
面の仕上切削加工が行われる。Next, the operation of this embodiment will be explained with reference mainly to FIGS. 2, 3, and 3. The workpiece W is now supported by the driving center 13 at the tip of the work drive device 2 and the rotation center 15 at the tip of the Shinshin sleeve 14. The pressure oil supplied to the rotating cylinder provided at the rear end of the main shaft is switched, the movable body 6 is moved backward via the connecting rod 11, the drive pin 5 is pushed out via the link lever 7, and the tip of the drive pin is The workpiece W is rotated by the drive pin 5 as the main shaft I is then rotated so as to be able to engage with the axial plane of the large diameter portion of the workpiece W. Then, the turret tool rest rotates at a predetermined retracted position, the rough cutting tool T2 is indexed to the cutting position, and by moving the turret tool rest in the X-axis and Z-axis directions, rough cutting of the outer diameter and end face of the large diameter part is performed. Cutting is performed. Next, the turret tool post moves to a predetermined retracted position, the turret tool post rotates again, the finishing tool T4 is indexed, and the rough-machined large diameter is moved by moving the turret tool post in the X-axis and Z-axis directions. Finish cutting is performed on the outer diameter and end face of the section. Next, the turret tool rest moves to the predetermined retracted position again, the rough cutting tool Tl is indexed, and rough cutting of the outer periphery and end face of the small diameter part on the Shinshin stand side is performed, followed by the finishing pie)
After T3 is determined, finish cutting is performed on the outer periphery and end face of the small diameter portion that has been rough cut.
次いで圧油が切り換えられて移動体６が前進され、リン
クレバー７を介してドライブピン５が後退し、工作物Ｗ
はドライビングセンタ１３によって回転されるようにな
り、荒引バイトＴ２が再び割出されて、主軸側小径部外
径及び端面の荒引切削加工がドライビングセンタの駆動
伝達能力の範囲内で行われ、引続き仕上パイ）Ｔ４が割
出されて荒引の終わった小径部外径及び端面の仕上切削
加工が行われる。Next, the pressure oil is switched and the movable body 6 is moved forward, and the drive pin 5 is retreated via the link lever 7, and the workpiece W is moved forward.
is now rotated by the driving center 13, the rough cutting tool T2 is indexed again, and rough cutting of the outer diameter and end face of the small diameter part on the main shaft side is performed within the range of the drive transmission capacity of the driving center, Subsequently, T4 (finishing pie) is indexed and finishing cutting is performed on the outer diameter and end face of the small diameter part that has been roughly cut.
尚加工順序は上述の順に限定されるものではなく例えば
加工精度等の問題で全仕上切削加工をドライビングセン
タ駆動で行うことも可能であることは当然である。Note that the machining order is not limited to the above-mentioned order, and it is of course possible to perform all finishing cutting by driving the driving center due to problems such as machining accuracy.
発明の効果
本発明は上述のとおり構成されているので、次に記載す
る効果を奏する。Effects of the Invention Since the present invention is configured as described above, it produces the following effects.
先端にドライビングセンタを備え、駆動部材により出し
入れ可能なドライブピンを有するワークドライブ装置を
主軸先端に嵌着して、ドライブピン駆動で加工不能な個
所をドライビングセンタ駆動で加工するようになしたの
で、加工範囲の拡大と高精度加工が可能となり、ワンチ
ャックで全加工を行うことができる。A work drive device equipped with a driving center at the tip and a drive pin that can be taken in and out by a drive member is fitted onto the tip of the spindle, and parts that cannot be machined by driving the drive pin can be machined by driving the driving center. Expanding the machining range and performing high-precision machining is possible, and all machining can be done with one chuck.
第１図はワークドライブ装置の断面図、第２図はドライ
ブピンによる加工個所を表す本実施例の作用の説明図、
第３図はドライビングセンタによる加工個所を表す本実
施例の作用の説明図、第４図は従来の技術説明用でドラ
イブピン駆動による加工個所を表す図、第５図は従来の
技術説明用で、内径チャック把持による加工個所を表す
図である。
ｌ・・主軸 ３・・枠体 ５・・ドライブピン １
３・・ドライビングセンタ
第４図
第５図Fig. 1 is a sectional view of the work drive device, Fig. 2 is an explanatory diagram of the operation of this embodiment showing the processing location by the drive pin,
Fig. 3 is an explanatory diagram of the operation of this embodiment, showing a part to be machined by the driving center, Fig. 4 is a diagram for explaining the conventional technique and is a diagram showing a part to be machined by drive pin drive, and Fig. 5 is for explaining the conventional technique. , is a diagram illustrating a processing location by gripping an inner diameter chuck. l...Main shaft 3...Frame 5...Drive pin 1
3. Driving center Figure 4 Figure 5
Claims (1)
中心線に対し平行で軸方向の出し入れ可能に設けられた
ドライブピン（５）と、前記枠体先端に同心に取付けら
れたドライビングセンタ（１３）と、該ドライブピンを
出し入れする駆動部材（６、７、１１、１２）とを含ん
でなり、加工個所に合わせてドライブピンを出し入れす
ることを特徴とするワークドライブ装置。(1) A drive pin (5) is installed eccentrically and parallel to the rotational center line in a frame body (3) that is fixed concentrically to the tip of the main shaft and can be moved in and out in the axial direction, and a drive pin (5) is attached concentrically to the tip of the frame body A work drive device comprising a driving center (13) and drive members (6, 7, 11, 12) for moving the drive pins in and out, and moving the drive pins in and out according to the processing location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7288089A JPH02250704A (en) | 1989-03-24 | 1989-03-24 | Work drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7288089A JPH02250704A (en) | 1989-03-24 | 1989-03-24 | Work drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02250704A true JPH02250704A (en) | 1990-10-08 |
Family
ID=13502092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7288089A Pending JPH02250704A (en) | 1989-03-24 | 1989-03-24 | Work drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02250704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014151386A (en) * | 2013-02-07 | 2014-08-25 | Murata Mach Ltd | Lathe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035524U (en) * | 1983-08-16 | 1985-03-11 | 日新電機株式会社 | capacitor device |
| JPS62176702A (en) * | 1986-01-30 | 1987-08-03 | Toyoda Mach Works Ltd | Device for rotatably driving workpiece |
-
1989
- 1989-03-24 JP JP7288089A patent/JPH02250704A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035524U (en) * | 1983-08-16 | 1985-03-11 | 日新電機株式会社 | capacitor device |
| JPS62176702A (en) * | 1986-01-30 | 1987-08-03 | Toyoda Mach Works Ltd | Device for rotatably driving workpiece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014151386A (en) * | 2013-02-07 | 2014-08-25 | Murata Mach Ltd | Lathe |
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