JPS61152303A - Spindle height adjusting device for machine tool - Google Patents

Spindle height adjusting device for machine tool

Info

Publication number
JPS61152303A
JPS61152303A JP27525384A JP27525384A JPS61152303A JP S61152303 A JPS61152303 A JP S61152303A JP 27525384 A JP27525384 A JP 27525384A JP 27525384 A JP27525384 A JP 27525384A JP S61152303 A JPS61152303 A JP S61152303A
Authority
JP
Japan
Prior art keywords
spindle
machine tool
height
liner
adjustment
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
JP27525384A
Other languages
Japanese (ja)
Inventor
Koichiro Kitamura
北村　耕一郎
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.)
Kitamura Machinery Co Ltd
Original Assignee
Kitamura Machinery 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 Kitamura Machinery Co Ltd filed Critical Kitamura Machinery Co Ltd
Priority to JP27525384A priority Critical patent/JPS61152303A/en
Publication of JPS61152303A publication Critical patent/JPS61152303A/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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/34—Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements

Landscapes

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

Abstract

PURPOSE:To adjust the height of a spindle with high precision by setting an adjusting liner consisting of piezoelectric ceramics which generates displacement through the application of voltage between a head and a spindle housing. CONSTITUTION:When a spindle 3 receives the thermal influence and generates displacement, and a height difference of H is generated between the top edges of the right and left tools 8, said difference is detected in optical ways. A prescribed voltage is applied onto the right or the left side of an adjusting liner 4 consisting of piezoelectric ceramics on the basis of the detection signal, and the displacement corresponding to the amount H is provided for the liner 4, and automatic adjustment is performed until H becomes zero. Thus, height adjustment with high precision is permitted with the simple constitution at a low cost.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、電圧を印加することにより変位を引き起こす
ところの圧電セラミックを利用した工作機械のスピンド
ル高さ調整装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spindle height adjustment device for a machine tool that uses a piezoelectric ceramic that causes displacement by applying a voltage.

［従来の技術］ 工作機械のスピンドルは、回転速度の高速化に伴い発熱
し変位を生じる。この変位は、たとえば２スピンドル型
フライス盛の場合、左右のスピンドルの高さに差異をも
たらし工作精度に影響を及ぼす。かかる熱の影響をでき
るだけ軽減し所望の精度を確保するために、従来の場合
、スピンドルを冷却したり、ツールホルダーに手動で高
さを調整できる装置を組み込んだり、あるいは特願昭５
８−１５０３０１号のようにスピンドルハウジングをモ
ータにより駆動されるねじ軸に螺合せしめることにより
自動的に上下動するよう構成していた。[Prior Art] As the rotational speed increases, the spindle of a machine tool generates heat and causes displacement. For example, in the case of two-spindle type milling, this displacement causes a difference in the height of the left and right spindles, and affects machining accuracy. In order to reduce the effect of such heat as much as possible and ensure the desired accuracy, conventional methods include cooling the spindle, incorporating a device that allows manual height adjustment into the tool holder, or
As in No. 8-150301, the spindle housing is screwed onto a screw shaft driven by a motor so as to automatically move up and down.

［発明が解決しようとする問題点コ 従来のスピンドル高さ調整装置Ｃよ、上記のように構成
されていたので、構成がとかく複雑になる傾向を有し、
精度の向上やコスト低減を困難にするという問題点があ
った。[Problems to be Solved by the Invention] Since the conventional spindle height adjustment device C was configured as described above, the configuration tends to be complicated.
There was a problem in that it made it difficult to improve accuracy and reduce costs.

［問題点を解決するための手段］ 本発明に係る工作機械のスピンドル高・さ調整装置は、
電圧の印加によって変位を生じる圧電セラミックからな
る調整ライナをヘッドとスピンドルハウジングとの間に
介在させたものである。[Means for solving the problem] The spindle height/length adjustment device for a machine tool according to the present invention has the following features:
An adjustment liner made of piezoelectric ceramic that is displaced by the application of voltage is interposed between the head and the spindle housing.

［作　用］ 本発明装置では、調整ライナに必要に応じ適宜の電圧を
印加すれば、圧電セラミックからなる調整ライナの厚さ
が変位しスピンドルの高さを自動的に調整する。[Function] In the device of the present invention, when an appropriate voltage is applied to the adjustment liner as necessary, the thickness of the adjustment liner made of piezoelectric ceramic is displaced and the height of the spindle is automatically adjusted.

「実施例」 以下、本発明の一実施例を図により説明する。"Example" Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

図において、（１）は工作機械のヘッド、（２）はスピ
ンドル（３）をベアリング（図示せず）を介して回転自
在に軸支するスピンドルハウジング、（４）は圧電セラ
ミックからなる調整ライナで、ヘッド（１）とスピンド
ルハウジング（２）との間に介在されている。なお、ス
ピンドルハウジング（２）はフランジ（５）をボルト（
６）により調整ライナ（４）を介してヘッド（１）に固
定している。（７）はスピンドル（３）と自動的に脱着
するように構成されたツールホルダーで、エンドミル等
の工具（８）を装着している。In the figure, (1) is the head of the machine tool, (2) is the spindle housing that rotatably supports the spindle (3) via a bearing (not shown), and (4) is the adjustment liner made of piezoelectric ceramic. , is interposed between the head (1) and the spindle housing (2). In addition, the spindle housing (2) is attached to the flange (5) by bolts (
6) is fixed to the head (1) via the adjustment liner (4). (7) is a tool holder configured to be automatically attached to and detached from the spindle (3), on which a tool (8) such as an end mill is mounted.

したがって、スピンドル（３）が熱の影響を受けて変位
を生じ、図示のように、左右の工具（８）の先端間にＨ
の高さの差が生じた場合には、その差を例えば光学的に
検出し、左側又は右側の調整ライナ（４）にその検出信
号に基づき所要の電圧を印加しＨの量に相当する変位を
該調整ライナ（４）に与えＨが零になるまで自動調整す
るものである。Therefore, the spindle (3) is displaced under the influence of heat, and as shown in the figure, H is generated between the tips of the left and right tools (8).
If a difference in height occurs, the difference is detected optically, for example, and a required voltage is applied to the left or right adjustment liner (4) based on the detection signal, and a displacement corresponding to the amount of H is applied. is applied to the adjustment liner (4), and automatic adjustment is made until H becomes zero.

［発明の効果］ 以上のように本発明によれば、電圧を印加するだけで所
要の変位を生じる圧電セラミック製の調整ライナを工作
機械のヘッドとスピンドルハウジングとの間に介在せし
めたものであるから、きわめて簡潔な構成であり、安価
にでき、しかもその圧電セラミックにより高精度の高さ
調整ができるという効果がある。[Effects of the Invention] As described above, according to the present invention, a piezoelectric ceramic adjustment liner that generates the required displacement simply by applying a voltage is interposed between the machine tool head and the spindle housing. Therefore, it has an extremely simple structure and can be made at low cost, and the piezoelectric ceramic allows highly accurate height adjustment.

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

図は本発明の実施例の断面図である。 （１１：ヘッド、（２１ニスピンドルハウジング、（３
）：　スピンドル、（４１：調整ライナ。The figure is a sectional view of an embodiment of the invention. (11: Head, (21 Nissindle housing, (3
): Spindle, (41: Adjustment liner.

Claims (1)

【特許請求の範囲】[Claims] 工作機械のヘッドとスピンドルハウジングとの間に圧電
セラミックからなる調整ライナを介在せしめてなること
を特徴とする工作機械のスピンドル高さ調整装置。A spindle height adjustment device for a machine tool, characterized in that an adjustment liner made of piezoelectric ceramic is interposed between the head of the machine tool and the spindle housing.
JP27525384A 1984-12-25 1984-12-25 Spindle height adjusting device for machine tool Pending JPS61152303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27525384A JPS61152303A (en) 1984-12-25 1984-12-25 Spindle height adjusting device for machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27525384A JPS61152303A (en) 1984-12-25 1984-12-25 Spindle height adjusting device for machine tool

Publications (1)

Publication Number Publication Date
JPS61152303A true JPS61152303A (en) 1986-07-11

Family

ID=17552828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27525384A Pending JPS61152303A (en) 1984-12-25 1984-12-25 Spindle height adjusting device for machine tool

Country Status (1)

Country Link
JP (1) JPS61152303A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000037213A2 (en) * 1998-12-22 2000-06-29 Schwäbische Werkzeugmaschinen GmbH Machine tool with a piezoelectric position adjusting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59124546A (en) * 1982-12-28 1984-07-18 Hitachi Ltd Device for positioning body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59124546A (en) * 1982-12-28 1984-07-18 Hitachi Ltd Device for positioning body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000037213A2 (en) * 1998-12-22 2000-06-29 Schwäbische Werkzeugmaschinen GmbH Machine tool with a piezoelectric position adjusting device
WO2000037213A3 (en) * 1998-12-22 2000-10-26 Schwaebische Werkzeugmaschinen Machine tool with a piezoelectric position adjusting device

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