JPH05269604A - Support device of rotary shaft at machine tool - Google Patents
Support device of rotary shaft at machine toolInfo
- Publication number
- JPH05269604A JPH05269604A JP6453092A JP6453092A JPH05269604A JP H05269604 A JPH05269604 A JP H05269604A JP 6453092 A JP6453092 A JP 6453092A JP 6453092 A JP6453092 A JP 6453092A JP H05269604 A JPH05269604 A JP H05269604A
- Authority
- JP
- Japan
- Prior art keywords
- rotary shaft
- machine tool
- support device
- sleeve
- eccentricity
- 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
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
- B23B39/162—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles having gear transmissions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/004—Adjustable elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Turning (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、工作機械における回転
軸の支持装置にかかり、特に、複数の回転軸を持つ工作
機械の回転軸間の間隔調整を容易にした工作機械におけ
る回転軸の支持装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary shaft supporting device for a machine tool, and more particularly to a rotary shaft supporting device for a machine tool having a plurality of rotary shafts for facilitating adjustment of a distance between the rotary shafts. It relates to the device.
【0002】[0002]
【従来の技術】トランスファマシンにおいては、加工速
度、設置スペース、価格などの面から、各加工ステーシ
ョンにおける加工ユニットの多軸化が要求されている。
加工ユニットの多軸化により、たとえば、前工程で複数
の穴を同時に加工し、次工程で、前項程で加工された穴
を同時に仕上げることができる。2. Description of the Related Art In a transfer machine, multi-axis processing units at each processing station are required in view of processing speed, installation space, price, and the like.
By making the processing unit multi-axis, for example, a plurality of holes can be processed at the same time in the previous step, and the holes processed at the previous step can be simultaneously completed in the next step.
【0003】[0003]
【発明が解決しようとする課題】しかし、前工程の加工
ユニットに配置された回転軸の配置間隔と、次工程の加
工ユニットに配置された回転軸の配置間隔の誤差を、数
ミクロンメータ以下の高精度に一致させなければ高精度
の加工ができない。このため、高精度の加工を行なう加
工ユニットの加工、組立には、現実には不可能に近い加
工精度が要求される。However, the error between the arrangement interval of the rotary shafts arranged in the machining unit of the previous process and the arrangement interval of the rotary shafts arranged in the machining unit of the next process is set to within several micrometers. High-accuracy machining cannot be achieved unless they are matched with high accuracy. Therefore, processing and assembling of a processing unit that performs highly accurate processing requires processing accuracy that is almost impossible in reality.
【0004】本発明の目的は、上記の事情に鑑み、現実
に可能な加工精度で、回転軸間の間隔を容易に、かつ高
精度に調整できるようにした回転軸の支持装置を提供す
ることにある。In view of the above-mentioned circumstances, an object of the present invention is to provide a supporting device for rotating shafts, in which the distance between the rotating shafts can be adjusted easily and highly accurately with the machining accuracy that is actually possible. It is in.
【0005】[0005]
【課題を解決するための手段】上記の目的を達成するた
め、本発明においては、同じ偏心量を持ち、内外2重に
配置された一対のスリーブを設け、内側に配置されたス
リーブに転がり軸受を介して回転軸を支持するようにし
た。In order to achieve the above object, in the present invention, a pair of sleeves having the same eccentricity and arranged in double inside and outside are provided, and the rolling bearing is provided in the sleeve arranged inside. The rotating shaft is supported via the.
【0006】[0006]
【作用】そして、一対のスリーブを回転させることによ
り、回転軸の軸心位置を移動させ、回転軸の間隔を調整
する。By rotating the pair of sleeves, the axial center position of the rotary shaft is moved, and the interval between the rotary shafts is adjusted.
【0007】[0007]
【実施例】以下、本発明の一実施例を図1及び図2に基
づいて説明する。同図において、1はケーシング。2は
外スリーブで、ケーシング1に回転可能に支持され、そ
の軸心には、外周の軸心Aに対し、偏心量αの穴が形成
されている。3は内スリーブで、外スリーブ2に回転可
能に支持され、その軸心には、外周の軸心Bに対し、外
スリーブ2と同じ偏心量αの穴が形成されている。4は
回転軸で、内スリーブ3に転がり軸受5を介して回転可
能に支持されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, 1 is a casing. An outer sleeve 2 is rotatably supported by the casing 1 and has a shaft centered with a hole having an eccentricity α with respect to an outer peripheral shaft center A. Reference numeral 3 denotes an inner sleeve, which is rotatably supported by the outer sleeve 2. A hole having the same eccentricity α as the outer sleeve 2 with respect to the outer peripheral axis B is formed in the shaft center. A rotary shaft 4 is rotatably supported by the inner sleeve 3 via a rolling bearing 5.
【0008】このような構成であるから、ケーシング1
に回転軸4を組付けた後、回転軸4の間隔を測定する。
そして、間隔の調整が必要なときには、外スリーブ2と
内スリーブ3を回転させて、間隔の調整を行なう。この
とき、回転軸4の軸心は外スリーブ2の外周の軸心Aを
中心とする半径α(偏心量)の円C内の任意の位置へ移
動させることができる。Due to such a structure, the casing 1
After assembling the rotary shaft 4 to the, the distance between the rotary shafts 4 is measured.
Then, when the spacing needs to be adjusted, the outer sleeve 2 and the inner sleeve 3 are rotated to adjust the spacing. At this time, the axis of the rotary shaft 4 can be moved to an arbitrary position within a circle C having a radius α (amount of eccentricity) centered on the axis A of the outer circumference of the outer sleeve 2.
【0009】したがって、ケーシング1、内スリーブ
2、外スリーブ3、回転軸4および転がり軸受5が、現
実に可能な加工精度であっても、回転軸4の間隔をより
高精度に調整できる。Therefore, even if the casing 1, the inner sleeve 2, the outer sleeve 3, the rotary shaft 4 and the rolling bearing 5 have a practically possible processing accuracy, the interval between the rotary shafts 4 can be adjusted with higher accuracy.
【0010】[0010]
【発明の効果】以上述べた如く、本発明によれば、同じ
偏心量を持ち、内外2重に配置された一対のスリーブを
設け、内側に配置されたスリーブに転がり軸受を介して
回転軸を支持するようにしたので、多軸加工ユニットの
回転軸の間隔を高精度に設定することが容易にできる。As described above, according to the present invention, a pair of sleeves having the same amount of eccentricity and arranged inside and outside are provided, and the rotary shaft is mounted on the sleeves arranged inside through a rolling bearing. Since the support is provided, it is possible to easily set the interval between the rotary shafts of the multi-axis machining unit with high accuracy.
【図1】本発明による一対のスリーブと回転軸の関係を
示す正面断面図。FIG. 1 is a front sectional view showing a relationship between a pair of sleeves and a rotating shaft according to the present invention.
【図2】本発明による回転軸の支持状態を示す側面断面
図。FIG. 2 is a side sectional view showing a supporting state of a rotating shaft according to the present invention.
2・・スリーブ、 3・・スリーブ、4・・
回転軸、 5・・転がり軸受、α・・偏心
量。2 ・ ・ Sleeve, 3 ・ ・ Sleeve, 4 ・ ・
Rotating shaft, 5 ・ ・ Rolling bearing, α ・ ・ Eccentricity.
Claims (1)
一対のスリーブを設け、内側に配置されたスリーブに転
がり軸受を介して回転軸を支持するようにしたことを特
徴とする工作機械における回転軸の支持装置。1. A work characterized in that a pair of sleeves having the same amount of eccentricity and arranged in double inside and outside are provided, and the rotating shaft is supported on the sleeves arranged inside by rolling bearings. Supporting devices for rotating shafts in machines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6453092A JPH05269604A (en) | 1992-03-23 | 1992-03-23 | Support device of rotary shaft at machine tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6453092A JPH05269604A (en) | 1992-03-23 | 1992-03-23 | Support device of rotary shaft at machine tool |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05269604A true JPH05269604A (en) | 1993-10-19 |
Family
ID=13260872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6453092A Pending JPH05269604A (en) | 1992-03-23 | 1992-03-23 | Support device of rotary shaft at machine tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05269604A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2749201A1 (en) * | 1996-06-04 | 1997-12-05 | Peugeot | DEVICE FOR ADJUSTING THE POSITION OF A MACHINING PIN OR SIMILAR ON A SUPPORT RELATIVELY TO A REFERENCE ELEMENT OF THIS SUPPORT |
US7258514B2 (en) * | 2003-06-28 | 2007-08-21 | Witzig & Frank Gmbh | Machine tool comprising parallel tool spindles that can be repositioned in relation to one another |
US20100028094A1 (en) * | 2006-12-27 | 2010-02-04 | Nsk Ltd. | Spindle device, machining center including the spindle device, and method for assembling the spindle device |
-
1992
- 1992-03-23 JP JP6453092A patent/JPH05269604A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2749201A1 (en) * | 1996-06-04 | 1997-12-05 | Peugeot | DEVICE FOR ADJUSTING THE POSITION OF A MACHINING PIN OR SIMILAR ON A SUPPORT RELATIVELY TO A REFERENCE ELEMENT OF THIS SUPPORT |
EP0811448A1 (en) * | 1996-06-04 | 1997-12-10 | Automobiles Peugeot | Adjusting device for the position of a working spindle |
US7258514B2 (en) * | 2003-06-28 | 2007-08-21 | Witzig & Frank Gmbh | Machine tool comprising parallel tool spindles that can be repositioned in relation to one another |
US20100028094A1 (en) * | 2006-12-27 | 2010-02-04 | Nsk Ltd. | Spindle device, machining center including the spindle device, and method for assembling the spindle device |
US8641338B2 (en) * | 2006-12-27 | 2014-02-04 | Nsk Ltd. | Spindle device, machining center including the spindle device, and method for assembling the spindle device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20010206 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20060220 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20060221 |