JPS59192443A - Indexing device - Google Patents
Indexing deviceInfo
- Publication number
- JPS59192443A JPS59192443A JP6302783A JP6302783A JPS59192443A JP S59192443 A JPS59192443 A JP S59192443A JP 6302783 A JP6302783 A JP 6302783A JP 6302783 A JP6302783 A JP 6302783A JP S59192443 A JPS59192443 A JP S59192443A
- Authority
- JP
- Japan
- Prior art keywords
- indexing
- force
- steel balls
- indexing table
- piston
- 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.)
- Granted
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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
- B23Q16/08—Indexing equipment having means for clamping the relatively movable parts together in the indexed position
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Positioning Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は鋼球を利用した割出盤の割出テーブル表面の傾
き精度を常に高精度に維持することを目的とする。DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to always maintain high inclination accuracy of the index table surface of an index table using steel balls.
従来一般に鋼球を利用した割出盤は第１図に示すように
同一ピッチ円上に多数の鋼球ｌを固着した一対の割出部
材２．３を互いに対向して設け、割出部材３は台４に装
着してあり、該台４に設け′たシリンダ孔８にピストン
７が上下摺動自在に嵌装している。このピストン７のロ
ッド７１の上端部に割出テーブル５が一体または別体に
固着してあり、この割出テーブル５に前記割出部材２が
図示の如く装着している。符号９はラック、１０はこの
ラックに噛合したピニオンである。Conventionally, as shown in FIG. 1, a conventional indexing machine using steel balls is provided with a pair of indexing members 2.3 facing each other, each having a large number of steel balls 1 fixed on the same pitch circle. is mounted on a stand 4, and a piston 7 is fitted into a cylinder hole 8 provided in the stand 4 so as to be vertically slidable. An indexing table 5 is fixed integrally or separately to the upper end of the rod 71 of the piston 7, and the indexing member 2 is attached to the indexing table 5 as shown. Reference numeral 9 is a rack, and 10 is a pinion meshed with this rack.
このような構造の従来例において、先づ下部シリンダ室
８１Ｖｃ加圧流体を供給し、ピストン７、割出テーブル
５および割出部材２を若干持ち上げた後、図示しない駆
動装置によってラック９を前後に動かしピニオン１０を
回動させてピストンロッド７１を所定量回動させ、加圧
流体の供給を上部シリンダ室８２ニ切換えると、ピスト
ン７、割出テーブル５および割出部材２が下降し、割出
部材２に固着した鋼球ｌと割出部材３に固着した鋼球ｌ
とが互いに噛合い、且つこの時自動求心作用が働らくの
で梢密な割出位置決めを行うことができる。In a conventional example of such a structure, first, pressurized fluid is supplied to the lower cylinder chamber 81Vc, and after the piston 7, indexing table 5, and indexing member 2 are slightly lifted, the rack 9 is moved back and forth by a drive device (not shown). When the moving pinion 10 is rotated to rotate the piston rod 71 by a predetermined amount and the supply of pressurized fluid is switched to the upper cylinder chamber 82, the piston 7, the indexing table 5, and the indexing member 2 descend, and the indexing Steel ball l fixed to member 2 and steel ball l fixed to indexing member 3
Since the two elements mesh with each other and an automatic centripetal action is activated at this time, precise indexing and positioning can be performed.
問題はこのあと更に加圧流体を上部シリンダ室８２に供
給して割出テーブル５を更に下方に大きな力で引張る必
要があることにある。これは割出テーブル５０表面５１
の負荷能力を増大し、上下左右力向の剛性及び捩り剛性
を増すために不可欠であ相変ないし傾きが狂ってしまう
から一定の精度を維持することができないのである。The problem is that it is then necessary to further supply pressurized fluid to the upper cylinder chamber 82 to pull the indexing table 5 further downward with a large force. This is the indexing table 50 surface 51
This is essential in order to increase the load capacity and increase the rigidity in the vertical, horizontal, horizontal, and torsional directions, as well as the torsional rigidity, but the constant accuracy cannot be maintained because the inclination or inclination will be out of order.
この発明は上記従来の問題を解消し、常に割出テーブル
表面の平相変、幼き等を高精度に維持し、然も負荷能力
が大きく、上下左右力向の剛性ないし捩り剛性の大きな
割出盤を提供することを目１、 的とするもので
ある。This invention solves the above-mentioned conventional problems, always maintains the flat phase change, smallness, etc. of the indexing table surface with high precision, and has a large load capacity, and has a large rigidity in the vertical and horizontal force directions or torsional rigidity. The first objective is to provide the board.
以下図示の実施例について説明すると、第２図に示した
ものは本発明の一実施例であるが、第１図の従来例と対
比させて画いてあり、且つ同機能の構成部品には同じ符
号を付しであるからそれらについては前述の構成説明を
引用するものとし、相違点についてのみ説明すると、台
４に設けたシリンダ孔８に受圧盤１１が装着してあり、
該受圧盤１１が割出テーブル５を支承するようになって
いる上記の実施例において、先づ下部シリンダ室８１に
流体圧を供給し、ピストン７、割出テーブル５を持ち上
げると、前記板ばね部材１２ニよって連結された割出部
材２が持ち上って鋼球１の噛合が外れる。この状態で図
示しない駆動源によってラック９を前後に動かしピニオ
ン１０を回動させてピストンロッド７１を所定量回動さ
せ、流体圧の供給を上部シリンダ室８２に切換えると、
ピストン７、割出テーブル５が下降する。この結果割出
部材２が板ばね部材１２によって下降し鋼球ｌが互いに
噛合って割出位置決めが行はれる。更にピストン７及び
割出テーブル５は下降し該割出テーブル５の下面が受圧
盤１１の上面に接触し、更に流体圧を上部シリンダ室８
２に供給し続けると上記接触面の血圧が所定の圧力に迄
高まり、割出テーブル５は所定の力でクランプされる。The embodiment shown in the drawings will be explained below. The one shown in FIG. 2 is an embodiment of the present invention, but it is drawn in contrast to the conventional example shown in FIG. Since they are labeled with reference numerals, the above-mentioned configuration description will be referred to, and only the differences will be explained.The pressure receiving plate 11 is attached to the cylinder hole 8 provided in the base 4,
In the above embodiment in which the pressure receiving plate 11 supports the indexing table 5, when fluid pressure is first supplied to the lower cylinder chamber 81 and the piston 7 and the indexing table 5 are lifted, the leaf spring The index member 2 connected by the member 12 is lifted up and the steel ball 1 is disengaged. In this state, when the rack 9 is moved back and forth by a drive source (not shown), the pinion 10 is rotated, the piston rod 71 is rotated by a predetermined amount, and the supply of fluid pressure is switched to the upper cylinder chamber 82.
The piston 7 and index table 5 descend. As a result, the indexing member 2 is lowered by the leaf spring member 12, and the steel balls 1 engage with each other to perform indexing and positioning. Further, the piston 7 and the index table 5 descend, and the lower surface of the index table 5 comes into contact with the upper surface of the pressure receiving plate 11, further transferring the fluid pressure to the upper cylinder chamber 8.
2, the blood pressure on the contact surface increases to a predetermined pressure, and the indexing table 5 is clamped with a predetermined force.
この時挿鋼球１も板ばね部材１２のばね常数に基く所定
の力で互いＫｍ合い、高い割出精度を維持することがで
きる。At this time, the inserted steel balls 1 also come into contact with each other Km with a predetermined force based on the spring constant of the plate spring member 12, and high indexing accuracy can be maintained.
鋼球にも割出テーブルにも無理な力が掛らず、従がって
割出精度及び割出テーブルの表面の平相変や剛性を向上
することができる。No unreasonable force is applied to either the steel ball or the indexing table, and therefore the indexing accuracy and the flat phase change and rigidity of the surface of the indexing table can be improved.
また上記割出テーブルの表面精度や剛性は受圧盤の表面
精度や剛性を上げることによって更に向上させることが
できる。Further, the surface precision and rigidity of the indexing table can be further improved by increasing the surface precision and rigidity of the pressure receiving plate.
尚作動流体としてエヤもしくは空圧油圧増圧変換器の作
動油を使用すると熱影響を少なくすることができ、上記
の各精度は一段と向上する。If air or the hydraulic oil of a pneumatic/hydraulic pressure booster converter is used as the working fluid, the thermal effect can be reduced, and the above-mentioned accuracy can be further improved.
第１図は従来の割出盤の構造を概略的に示した縦断面図
、第２図は本発明の一実施例を示す縦断面図である。
符号の説明FIG. 1 is a vertical sectional view schematically showing the structure of a conventional indexing board, and FIG. 2 is a vertical sectional view showing an embodiment of the present invention. Explanation of symbols
Claims (1)
を互いに対向して設け、上記鋼球を互いに噛合せて割出
位置決めを行う割出盤において、上記一対の割出部材の
中心に位置し該中心軸線方向にストローク可能の流体圧
シリンダと、該シリンダのピストンに装着した割出テー
ブルと、該割出テーブルと上記割出部材の一力とを連結
した板ばね部材と、割出時に上記割出テーブルを支承す
る受圧盤とを具備し、上記シリンダを作動させた時に上
記板ばね部材を介して前記一対の割出部材の鋼球な互い
に噛合せ、且つ上記割出テーブルを上記受圧盤に押し付
けてクランプすることを特徴とする割出盤。In an indexing machine in which a pair of indexing members having a large number of fixed steel balls are provided facing each other on the same pitch circle, and the steel balls are engaged with each other to determine the indexing position, the center of the pair of indexing members is a fluid pressure cylinder located at and movable in the direction of the central axis; an indexing table attached to the piston of the cylinder; a leaf spring member connecting the indexing table and one force of the indexing member; and a pressure receiving plate that supports the indexing table when the indexing table is released, and when the cylinder is actuated, the steel balls of the pair of indexing members engage with each other via the leaf spring member, and the indexing table is An indexing board characterized by being pressed against the pressure receiving board and clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6302783A JPS59192443A (en) | 1983-04-12 | 1983-04-12 | Indexing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6302783A JPS59192443A (en) | 1983-04-12 | 1983-04-12 | Indexing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59192443A true JPS59192443A (en) | 1984-10-31 |
| JPH0355261B2 JPH0355261B2 (en) | 1991-08-22 |
Family
ID=13217430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6302783A Granted JPS59192443A (en) | 1983-04-12 | 1983-04-12 | Indexing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59192443A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852428A (en) * | 1986-10-22 | 1989-08-01 | Fujii Seiko Limited | Indexing device |
| EP1300605A3 (en) * | 2001-10-05 | 2007-06-13 | Porta S.P.A. | Improved device for controlling the locking and unlocking movements of a rotary disk, with a ring gear system and apparatus including the device |
-
1983
- 1983-04-12 JP JP6302783A patent/JPS59192443A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852428A (en) * | 1986-10-22 | 1989-08-01 | Fujii Seiko Limited | Indexing device |
| WO1990008010A1 (en) * | 1986-10-22 | 1990-07-26 | Katutoshi Haga | Index device |
| EP1300605A3 (en) * | 2001-10-05 | 2007-06-13 | Porta S.P.A. | Improved device for controlling the locking and unlocking movements of a rotary disk, with a ring gear system and apparatus including the device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0355261B2 (en) | 1991-08-22 |
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