JPS58206304A - Spherical rotating center - Google Patents
Spherical rotating centerInfo
- Publication number
- JPS58206304A JPS58206304A JP9034482A JP9034482A JPS58206304A JP S58206304 A JPS58206304 A JP S58206304A JP 9034482 A JP9034482 A JP 9034482A JP 9034482 A JP9034482 A JP 9034482A JP S58206304 A JPS58206304 A JP S58206304A
- Authority
- JP
- Japan
- Prior art keywords
- support ball
- main body
- resin film
- storage section
- resin
- 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
- B23B23/00—Tailstocks; Centres
- B23B23/04—Live centres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2233/00—Details of centres or drivers
- B23B2233/08—Centres or drivers comprising a ball
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、研削盤、旋盤等において、筒状の液加ｌ二物
を支持する球形回転センタに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spherical rotation center for supporting a cylindrical liquid adder in a grinding machine, a lathe, or the like.
軸心に沿っ【穴の形成された筒状の被加工物の表面研削
や切削を精度良く行なうためには、ｉｔ ／ＩＩ＋ 、
［物を主１ｉＬ１１１とゾールストック間で振れを生じ
ることなく確実に支持する必要がある１第３図は従来の
筒状の被加工物の加に態様を示す図である。Along the axis [In order to accurately perform surface grinding and cutting of a cylindrical workpiece with a hole formed, it /II+,
[It is necessary to reliably support the object between the main 1iL 111 and the sole stock without causing runout 1 Fig. 3 is a diagram showing an additional aspect of a conventional cylindrical workpiece.
従来、そうしたａｌｌ王を行なう場ａ、第３図に示すよ
うに、枠骨ｌと呼ばれる加ｌ−用アダプタを液加ｌ二物
２に特別にＩＪｌｌ 、、１１形成された取付は穴２ｂ
Ｇ、： ｉ！！め込み、枠骨ｌにセンタ穴１ａを穿設
し、該センタ穴１ａを介して被加工物２を主軸５に装着
されたセンタ３及びテールストック９に装着された傘型
センタ２１によって支持する方法が用いられていたが、
この方法では、枠骨１及び取付は穴２ｂ等をいちいち加
工して準備する必要があり、極めて煩雑であった。しか
も、加１−が終了した後には枠骨１は不要となるために
、液加１−物２から枠骨ｌを抜き取る作業も必要となり
、作業効率が悪化する不都合があった。。Conventionally, when performing such an all-in-one operation, as shown in Fig. 3, an adapter for addition called a frame l is specially attached to the two objects 2, 11, and a mounting hole 2b is formed.
G: i! ! A center hole 1a is formed in the frame l, and the workpiece 2 is supported through the center hole 1a by the center 3 attached to the main shaft 5 and the umbrella-shaped center 21 attached to the tail stock 9. The method was used, but
In this method, it was necessary to prepare the frame rib 1 and the mounting hole 2b by machining each hole 2b, which was extremely complicated. Moreover, since the frame rib 1 is no longer needed after the addition 1- is completed, it is also necessary to remove the frame rib 1 from the liquid addition 1-material 2, which has the disadvantage of deteriorating work efficiency. .
本発明は、前述の欠点を解消すべく、枠骨を月１いるこ
となく高精度の加工が可能な球形回転センタを提供−ｆ
ることを目的とするものである。In order to eliminate the above-mentioned drawbacks, the present invention provides a spherical rotating center that is capable of high-precision machining without having to manually rotate the frame.
The purpose is to
即ち、本発明は、接続部分の形成された本体を有し、該
本体に支持球収納部を形成すると共に、間記収納部に低
＊擦係数含有する樹ｒ１ｈ膜をｆｉ ｌ、 ’Ｃ支持球
を転動自在に支持しで構成される。That is, the present invention has a main body in which a connecting portion is formed, a support ball storage part is formed in the main body, and a resin film containing a low coefficient of friction is applied to the intermediate storage part. It consists of a ball that is supported so that it can roll freely.
以ト、図１川に月くす実に例（こ仄さ、本発明を具体的
に説明する。Hereinafter, the present invention will be specifically explained using an example shown in FIG.
弔１図は本発明による球形回転センタを用いた研削盤の
一例を小す図、第２図は本発明による球形回転センタの
一実施例を示す断面図である。Fig. 1 is a miniature view of an example of a grinding machine using a spherical rotation center according to the present invention, and Fig. 2 is a sectional view showing an embodiment of the spherical rotation center according to the present invention.
研削盤Ｉは、第１図にｌＪりずように、回転駆動自在な
主軸５が設けられた主軸台７及び、テールストツ９９ｔ
４−ｉしでおり、テールストック９は主軸５の軸心方向
である矢印Ａ 、 １３ ）ｊ向に移動固定自在に設け
られ°Ｃいる１、主軸５及びテールストック９には本発
明による球形回転センタＩＯが装着されており、テール
ストック９（ｔｉｌｌのセンタ１０は矢印Ａ 、 １３
”））向に突出後退自在に設＆）られ−（いるＹ回転
センｌ ｌ Ｏ、Ｉ ０間１．１ハ軸心）月ｔＪ１に穴
２Ｘ＋の穿設された披ｂｕ ＋：吻２が支持されでいる
。液加１〕物２の図中左端面には止め金２もが螺合し゛
（おり、止め金２ｃには主軸５に一端が固ｄさＪした回
し會２２の先端がｖｔ、行１１．ている また、アール
ストックリと上軸５１ｉｉＪには、回転駆動し１在に支
持されたと石１１等しり１：枝が矢印Ａ、Ｂ及び、矢印
Ａ 、 １３力向とは直角な矢印ｅ 、 Ｉ） Ｊｊ向
に移！Ｉｔ、ＩＪ駆動自在に設ＧＩられでいる１
ところで、球形回転センタＩＯは、第２図にｉｓニーｉ
ように、テールストック９及び主軸５等との接続を行な
う接続部であるテーバシャンク部１０ａの形成された本
体１ＯＬＪを有しており、本体１０ｂには半球形の支持
球収納部１０Ｃが形成されている１収納部ＩＯＣにはエ
ポキシ樹脂等の極めて低い摩擦係数をイｊ′ｒる樹脂膜
１０ｄを介しく゛高具球度の鋼製の支持球１２が転勤自
在に我人係合【７ており、支持球１２は、収納部１０Ｌ
の図中左端に螺合した支持枠１０ｅに、より収納ｆｌｌ
ｓ ｌ ＯＣ中から脱落しない、ｌ：うに保持され°（
いる、また、収納部１０ｃには注油１．１ Ｉ Ｏｆが
樹脂膜１０ｄを貝通ずる形で形成され−（い・５３．な
お、１０ｇ４ｊ樹脂膜１０ｄ）し成用の樹脂ｔＦ、人目
（゛あり、樹脂膜１ （Ｊ （Ｉは、支持球１２を収納
部１０ ｃ １．：嵌入させた状ｊ塵で、注入１１１０
ｇ１り樹脂を注入シフ′（凝固させ、史に支持球１２を
収り外して注油ＩＪ ｌ □ ｆ等ｆ機械）ＪＩＩ’
、−Ｅ Ｌ、で形成される。As shown in FIG. 1, the grinding machine I includes a headstock 7 provided with a spindle 5 that can be freely rotated, and a tail stock 99t.
4-i, the tail stock 9 is provided so as to be movable and fixed in the direction of the arrow A, 13), which is the axial direction of the main shaft 5. The rotation center IO is installed, and the tail stock 9 (till center 10 is indicated by arrow A, 13
It is installed so that it can freely protrude and retract in the direction of ``)) - (Y rotation sensor l l l O, I0 between 1.1 and 0 axis center). A stopper 2 is also screwed onto the left end surface of the liquid adder 1 and the object 2 in the figure. vt, line 11. In addition, the upper shaft 51iiJ has a rotary drive and is supported by a stone 11, etc. 1: Branches are arrows A, B, and arrow A, 13 What is the direction of force? Right-angled arrow e, I) Move in the Jj direction!It, IJ is installed so that it can be driven freely1.
As shown, the main body 1OLJ is formed with a Taber shank portion 10a which is a connecting portion for connecting with the tail stock 9, main shaft 5, etc., and a hemispherical support ball storage portion 10C is formed in the main body 10b. A support ball 12 made of steel with a high sphericity is removably engaged in the 1 storage part IOC through a resin film 10d made of epoxy resin or the like which has an extremely low coefficient of friction. , the support ball 12 is located in the storage section 10L.
The storage frame 10e is screwed onto the left end in the figure.
s l Does not fall out of the OC, l: held in place °(
In addition, in the storage part 10c, lubricant 1.1 IOf is formed in such a way that it passes through the resin film 10d. , the resin film 1 (J (I is the dust in which the support ball 12 is fitted into the storage part 10 c 1.), and the injection 1110
Inject the resin (solidify, remove the support ball 12 and lubricate it with the machine) JII'
, -E L,.
本発明は、以ヒのような構成を有゛ｆ６ので、肢加［二
吻２をと４３１１によって一１闇シ１１１．をＨなう場
合には、球形回転センタ１０を、＃Ａ１図に小？−よう
に、主軸５及びゾールストック９にテ、（ンヤンク部１
０ ａ １−ｆｌしく装着し、テールストック９及びア
ールストック９に装着されたセンタｌＯｋ矢１：ｌＪ
Ａガ同に移動させで、岐加ｌ二物２を・ｈヒンタ１０，
１０間で、支持球１２のタト、ｊＨに露出ｊ７た部分と
披ａｌｌ ［物２の両端を、第２図にｉｌ＜ ’ｆ 、
ように、タラ１定の接触圧で当接係合させた形で支持す
る１、この際、液加１．物２の市め金２Ｃと回し金２２
を係合させ、Ｌ４１１Ｉｌｂの回転が回し金２２．１１
二め金２ｃを・介しで破卵に物２に伝達されるようにす
る。次にｔＦ曲１１１０ ｆがらオ・ｆルミスト８樹）
ｊ目１１λ１（Ｊｄと支旬球１２間に注入し１．ＬＩｌ
ｌｌＩＩｂ令・回転駆動させで肢加１．吻２を回転させ
ると共に、と石１１を回転させて研削加工を開始する。The present invention has the configuration as shown below, so by adding the two proboscises 2 and 4311, the 11 dark side 111. In case of H, the spherical rotation center 10 should be placed in the #A1 diagram. - As shown, attach the spindle 5 and the sole stock 9 to the yank part 1.
0 a 1-fl correctly installed, center lOk arrow 1: lJ attached to tail stock 9 and ear stock 9
A is moved to the same place, and Kika l two things 2, h hint 10,
Between 10 and 10, the part of support ball 12 exposed to jH and the both ends of object 2 are
As shown in FIG. Item 2 market money 2C and rotating money 22
When the rotation of L411Ilb is engaged, the rotation of L411Ilb is
The second metal 2c is used to transmit the broken egg to the object 2. Next is tF song 1110 f garao f lumist 8 tree)
j-th 11λ1 (injected between Jd and pericycle 12; 1.LIl
llIIb age: limb addition by rotational drive 1. Grinding is started by rotating the proboscis 2 and rotating the cutting stone 11.
すると、各センタｌｏの支持球１２も樹１１ｔｆ ＩＩ
Ｑ ｌ Ｏｄ トノｌ’ｕＪ −Ｃ’Ｍ 加、Ｌ’、
＋１２ ＋！：共に回転を開始し７、破加１１＊２はセ
ンタ１０゜ｌＵの本体１０ｂ 、ｌＯｂ間で支持される
。樹脂膜ＩＵｄは摩擦係数が極めて曵くがっ換１０ｄと
支（，１球１２間にはオイルミストによる油膜が形成さ
れるので、液加ｆ、吻２が＾速で回転しくも、支持球１
２が樹脂１０ｄ及び本体１０ｂに焼付くようなことはな
く、被加工物２は確実に支持される。また、回転する支
持球１２自体か本＃４−１Ｏｂに対してベアリング等の
機構部品を介することなく直接潤滑支持されるので、被
ｂ１１１：物２を回転支持した際に生じる振れが極め疋
−少なく、＾積度の加■二がロエ能となる５、史に、ｔ
ト曲目１０量から注入されたオイルミスト中の空気は、
支持枠１０ｅと支持球１２間の僅がな間隙から外部へ吹
き出すので、切粉、コミ寺の塵埃が支持球１２と樹脂膜
ｌυｄ間に＋ｉｔＪ記間隙から侵入ｆ′ることがなく、
そのためのシール機構も重要Ｃある。Then, the support ball 12 of each center lo is also tree 11tf II
Q l Od Tonol'uJ -C'M Add, L',
+12 +! : Both start rotating 7, and the fracture 11*2 is supported between the main bodies 10b and 1Ob at the center 10°lU. The resin film IUd has an extremely high coefficient of friction and an oil film is formed between the ball 10d and the support ball 12 due to oil mist.
2 will not burn onto the resin 10d and the main body 10b, and the workpiece 2 will be supported reliably. In addition, since the rotating support ball 12 itself is directly lubricated and supported by the object #4-1Ob without intervening mechanical parts such as bearings, the vibration that occurs when the object 2 is rotationally supported is extremely reduced. Fewer, the addition of ^ accumulation degree becomes Roe Noh 5, history, t
The air in the oil mist injected from the 10th volume of the
Since it is blown out from the small gap between the support frame 10e and the support ball 12, chips and dust from Komi-dera do not enter between the support ball 12 and the resin film lυd from the +itJ gap f'.
The sealing mechanism for this is also important.
／ｆお１．ｌ：、述の実施例は、本発明による球形回転
ヒンタｌＯ／！−研削盤６に用いた場合について述べた
が、センタ］０は研削盤６に限らず旋盤等に用いること
も当然川面である、。/f1. l:, the described embodiment is a spherical rotating hinter lO/! according to the invention. - Although the case where it is used in the grinding machine 6 has been described, the center] 0 can of course be used not only in the grinding machine 6 but also in lathes and the like.
以上説明したように、本発明によれは、支持球１２を促
持球収納部１０ Ｃに低Ｍ捺係数からなる樹脂膜１０ｔ
ｌケ介して転勤自在に支持したので、繭状の′ｅ１．Ｊ
Ｊ＋＋王物２を挫骨ｌ中物２ｌを取（・１けるための特
別な取ｔ−ｒけ穴２ｂ等を用いることなく支持しつつ揚
れの少ない高精度の加Ｉ−がＩＪ［能となるばかりか、
支持球１２は披ａｕ １１物２の端部に押圧され゛（い
るだけなので、従来のように液加１：物２に対する挫骨
ｌの脱ｎ作業等の余分な作業も不要となり、作業効率の
大幅な向にに寄芋し優る。。As explained above, according to the present invention, the resin film 10t having a low M printing coefficient is attached to the ball storage portion 10C for holding the supporting balls 12.
The cocoon-like 'e1. J
The high-precision addition I- with little uplift while supporting the J++ King 2 without using a special mounting hole 2b for inserting the IJ [No. Not only that, but
Since the support ball 12 is pressed against the end of the object 2, there is no need for extra work such as adding liquid to the object 2 and removing the contusion l from the object 2, which is required in the past, and this improves work efficiency. It's a huge improvement.
第１図は本発明による球形回転センタを用いた６）［削
盤の−・例を７ｊ＜す図、第２図は本発明によ６＃Ｃ）
し回転１！ンタの−・実施間を小り断面図、第３図は従
来の筒状の被り＋＋ ｉ’、 物の加ｌ−態様を７１＜
４図である１゜
１０・・・・・・・球形回転センタ
１０．１・・・・・・接続部分（デーパシ翫・ンク部）
１０ｂ・・・・・・本 体
１０ｃ・・・・・・支持球収納部
ｌ Ｑ （１・・・・・・樹脂膜
１２・・・・・・・・・支持球
特許出願人 株式会社１１１崎鉄玉所代理人 弁理士
相１１ｊ伸二
（ばか１名）Fig. 1 shows an example of a grinding machine using a spherical rotating center according to the present invention, and Fig. 2 shows an example of a grinding machine using a spherical rotating center according to the present invention.
Rotation 1! Fig. 3 shows the conventional cylindrical overlap ++i', and the addition mode of the object is 71<
Figure 4 shows 1゜10... Spherical rotation center 10.1... Connecting part (data transfer rod/link part)
10b...Main body 10c...Support ball storage part l Q (1...Resin film 12...Support ball patent applicant Co., Ltd. 111 Sakitetsu Tamadokoro Patent Attorney Shinji Ai11j (one idiot)
Claims (1)
部を形成すると共に、ｉｉＪ記収納部に低摩擦係数を有
する樹脂膜を介して支持球を転勤自在に支持して構成し
た球形回転センタ。A spherical shape having a main body formed with a connecting part, a support ball storage part formed in the main body, and a support ball removably supported in the storage part iiJ through a resin film having a low coefficient of friction. rotation center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9034482A JPS58206304A (en) | 1982-05-27 | 1982-05-27 | Spherical rotating center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9034482A JPS58206304A (en) | 1982-05-27 | 1982-05-27 | Spherical rotating center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58206304A true JPS58206304A (en) | 1983-12-01 |
Family
ID=13995907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9034482A Pending JPS58206304A (en) | 1982-05-27 | 1982-05-27 | Spherical rotating center |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58206304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101309183B1 (en) * | 2010-12-17 | 2013-09-23 | 두산중공업 주식회사 | Apparatus for preventing pivot motions of rotor |
| JP2021037603A (en) * | 2019-09-05 | 2021-03-11 | ジヤトコ株式会社 | Live center and grinding device |
-
1982
- 1982-05-27 JP JP9034482A patent/JPS58206304A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101309183B1 (en) * | 2010-12-17 | 2013-09-23 | 두산중공업 주식회사 | Apparatus for preventing pivot motions of rotor |
| JP2021037603A (en) * | 2019-09-05 | 2021-03-11 | ジヤトコ株式会社 | Live center and grinding device |
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