JPH03256669A - Outer periphery polishing work jig for cylinder body with thin wall thickness - Google Patents
Outer periphery polishing work jig for cylinder body with thin wall thicknessInfo
- Publication number
- JPH03256669A JPH03256669A JP2052756A JP5275690A JPH03256669A JP H03256669 A JPH03256669 A JP H03256669A JP 2052756 A JP2052756 A JP 2052756A JP 5275690 A JP5275690 A JP 5275690A JP H03256669 A JPH03256669 A JP H03256669A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- pressure liquid
- peripheral surface
- jig
- pressure
- 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
- 238000005498 polishing Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract 2
- 239000007924 injection Substances 0.000 claims abstract 2
- 239000012530 fluid Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 abstract description 19
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Gripping On Spindles (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、薄肉円筒体の外周面を研磨する際に用いられ
るセンターレス研磨加工治具に関し、特に、外周に鍔を
有する薄肉円筒体外周面のセンターレス研磨加工用治具
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a centerless polishing jig used for polishing the outer circumferential surface of a thin-walled cylindrical body, and particularly to a centerless polishing jig used for polishing the outer circumferential surface of a thin-walled cylindrical body having a flange on the outer periphery. This is a jig for centerless polishing.
従来の技術
円筒形被加工物の外周面の研磨加工は、一般的にセンタ
ーレス研磨機で加工され、該被加工物の肉厚が１ｗ＊〜
１■−のような薄肉の場合には被加工物が軽量であるた
めに、研磨圧力が減少して研磨効率が減少するので長い
加工時間を要していた。Conventional technology Polishing of the outer peripheral surface of a cylindrical workpiece is generally performed using a centerless polishing machine, and when the thickness of the workpiece is 1w*~
In the case of a thin wall such as No. 1-, the workpiece is light, so the polishing pressure is reduced and the polishing efficiency is reduced, resulting in a long processing time.
また、外周部に鍔を有するシリンダライナやスリーブ等
のセンターレス研磨加工においては、研磨抵抗に起因す
る被加工物の変形量は鍔のある部分と無い部分とで異な
るため、被加工物の変形をあらかじめ見込んで研磨砥石
のドレスを調整するなどの段取りを必要としていた。In addition, in centerless polishing of cylinder liners, sleeves, etc. that have a flange on the outer periphery, the amount of deformation of the workpiece due to polishing resistance is different between the part with the flange and the part without the flange, so the deformation of the workpiece This required preparations such as adjusting the dress of the polishing stone in advance.
そのため、従来より第２図に示すような加工治具が用い
られていた。すなわち、鍔Ｆを有す、る薄肉円筒状の被
加工物Ａに鍔Ｓを有する円柱状の治具本体Ｊを嵌挿し、
円形蓋状の固定金具Ｃを該治具本体Ｊにポル）Ｂで緊締
することにより、鍔Ｓと固定金具Ｃとの間で被加工物Ａ
を挟圧保持し、被加工物Ａと治具本体Ｊとを一体化して
被加工物重量を増加させ、研磨圧力の増加を可能にして
研磨効率の低下を防止している。For this reason, a processing jig as shown in FIG. 2 has conventionally been used. That is, a cylindrical jig main body J having a flange S is inserted into a thin cylindrical workpiece A having a flange F,
By tightening the circular lid-shaped fixture C to the jig main body J with the bolt B, the workpiece A can be secured between the flange S and the fixture C.
The workpiece A and the jig main body J are integrated with each other to increase the weight of the workpiece, thereby making it possible to increase the polishing pressure and preventing a drop in polishing efficiency.
しかし、被加工物Ａの内径が円筒軸方向に沿ってばらつ
きがあるため、治具本体Ｊの外径を被加工物Ａの内径よ
りも小にして治具と被加工物との間に多少の隙間をもた
せているため、被加工物の外周面研磨精度の低下は避け
られなかった。However, since the inner diameter of the workpiece A varies along the cylindrical axis direction, the outer diameter of the jig body J is made smaller than the inner diameter of the workpiece A, so that there is a slight gap between the jig and the workpiece. Because of this gap, a decrease in the polishing accuracy of the outer peripheral surface of the workpiece was unavoidable.
そこで、第３図に示すような治具を用いて第２図で説明
した治具の欠点を解決しているが、第３図における円錐
形治具本体Ｊ′の軸端に円錐形固定金具Ｃ′を被嵌し、
治具Ｊ′の円錐面と固定金具Ｃ′の円錐面との間に割コ
レットＥを環状に架設し、該治具本体Ｊ′を被加工物Ａ
に嵌挿したのち、固定金具Ｃ′をポルトＢで治具本体Ｊ
′の軸端に緊締することによって固定金具Ｃ′を治具本
体Ｊ′側に移動させ、治具と固定金具の円錐面によって
割コレントＥを外側方に拡開させて被加工物Ａの内周面
に押接することにより治具と被加工物を一体化させてい
た。Therefore, a jig as shown in FIG. 3 is used to solve the drawbacks of the jig explained in FIG. C' is fitted,
A split collet E is installed in an annular manner between the conical surface of the jig J' and the conical surface of the fixture C', and the jig main body J' is attached to the workpiece A.
After inserting it into the jig body J, attach the fixing bracket C' with the port B.
By tightening the shaft end of the fixture C', the fixture C' is moved toward the jig main body J', and the conical surface of the jig and the fixture causes the split current E to expand outward, and the inside of the workpiece A is moved. The jig and workpiece were integrated by pressing against the peripheral surface.
したがって、割コレッ）Ｈの外周面と被加工物の内周面
とが隙間なく密接するので、第２図に示す治具の欠点は
解消されたが、被加工物が薄肉であると、割コレン）Ｈ
の分割数に応して被加工物Ａが多角柱状に変形して外周
面研磨精度が得られないという欠点を有している。Therefore, the outer circumferential surface of the splitting collet (H) and the inner circumferential surface of the workpiece are in close contact with each other without any gaps, so the drawbacks of the jig shown in Fig. 2 have been solved, but if the workpiece is thin, the splitting Collen)H
This method has the disadvantage that the workpiece A deforms into a polygonal column shape depending on the number of divisions, making it impossible to obtain polishing accuracy on the outer circumferential surface.
発明が解決しようとする課題
上述した２つの従来技術において、前者は研磨抵抗に起
因する被加工物の変形があり、後者は被加工物と治具の
固定に伴う被加工物の変形があって、いづれも充分な研
磨加工精度が得られない欠点を有している。Problems to be Solved by the Invention In the two conventional techniques mentioned above, the former involves deformation of the workpiece due to polishing resistance, and the latter involves deformation of the workpiece due to fixation of the workpiece and jig. Both have the disadvantage that sufficient polishing precision cannot be obtained.
そこで、本発明は、被加工物の内周面に均一な圧力を作
用させて被加工物と治具を一体化させ、且つ被加工物の
変形を防止して外周面研磨加工精度を向上させたもので
ある。Therefore, the present invention applies uniform pressure to the inner peripheral surface of the workpiece to integrate the workpiece and the jig, prevents deformation of the workpiece, and improves the accuracy of polishing the outer peripheral surface. It is something that
ＩＩＩ！を解決するための手段
本発明は、センターレス加工用治具の円形外周面に多数
の環状凹溝を密に凹設し、夫々の凹溝に弾性シールリン
グを嵌装するとともに、該凹溝の底部に圧液供給孔を設
け、該圧液供給孔と治具の中心部に設けた圧液封入室と
を半径方向放射状の圧液供給通路で連通し、圧液封入室
の圧液注入口に圧液封止弁を設けたものである。III! Means for Solving the Problems The present invention provides a jig for centerless machining, in which a large number of annular grooves are closely formed on the circular outer peripheral surface, an elastic seal ring is fitted in each groove, and the grooves are A pressure liquid supply hole is provided at the bottom of the jig, and the pressure liquid supply hole and a pressure liquid sealing chamber provided in the center of the jig are communicated through a radially radial pressure liquid supply passage. A pressure liquid sealing valve is provided at the inlet.
作 用
円形外周面を有する治具本体を薄肉円筒体の被加工物内
周面に嵌装し、圧液注入口より圧液を圧液封入室内に供
給すると、該圧液は圧液供給通路を経て夫々の環状凹溝
内に送られるから、弾性シールリングは延伸拡間し、被
加工物の内周面に圧接して被加工物を治具本体と一体に
保持する。Operation: When the jig main body having a circular outer peripheral surface is fitted onto the inner peripheral surface of a thin-walled cylindrical workpiece and pressurized liquid is supplied from the pressurized liquid inlet into the pressurized liquid sealing chamber, the pressurized liquid flows into the pressurized liquid supply passage. As the elastic seal rings are fed into the respective annular grooves, the elastic seal rings are stretched and expanded, and press against the inner circumferential surface of the workpiece to hold the workpiece integrally with the jig main body.
そこで、圧液封止弁を閉じて図示しない圧液供給源と切
り離すと、治具本体に一体的に保持された被加工物は、
センターレス研磨機に運ばれて外周面の研磨を行うが、
多数のシールリングは被加工物に圧接しているから、治
具に隙間なく保持されるので研磨抵抗による変形が発生
せず、しかも、夫々のシールリングの間隔が密に設けら
れているので、被加工物に凹凸変形を生しさせないので
、被加工物の外周面を均一に研磨加工することができる
。Therefore, when the pressure fluid sealing valve is closed and the pressure fluid supply source (not shown) is disconnected, the workpiece that is integrally held in the jig body is
It is transported to a centerless polishing machine and the outer peripheral surface is polished.
Since many seal rings are in pressure contact with the workpiece, they are held in the jig without any gaps, so deformation due to polishing resistance does not occur, and since the seal rings are closely spaced, Since uneven deformation is not caused on the workpiece, the outer peripheral surface of the workpiece can be uniformly polished.
実 施 例
第１図は本発明の断面図であって、薄肉円筒体の被加工
物１には円形外周面を有する治具本体２が嵌挿され、治
具本体２の外周面には多数の環状凹溝３，３・・・が間
隔を密にして凹設され、該夫々の環状凹溝３，３・・・
には環状の弾性シールリング４．４・・・が密に嵌装さ
れている。Embodiment FIG. 1 is a cross-sectional view of the present invention, in which a jig main body 2 having a circular outer peripheral surface is fitted into a thin-walled cylindrical workpiece 1. The annular grooves 3, 3... are recessed with close intervals, and the respective annular grooves 3, 3...
An annular elastic seal ring 4.4 is tightly fitted into the ring.
また、夫々の環状凹溝３．３・・・の底部には圧液供給
孔５．５・・・が開孔し、夫々の圧液供給孔５５・・・
は治具本体２の中心部に設けた圧液封入室６に圧液供給
通路７，７・・・で連通し、該夫々の圧液供給通路７．
７・・・は半径方向放射状に穿設されている。Moreover, pressure liquid supply holes 5.5... are opened at the bottoms of the respective annular grooves 3.3..., and the respective pressure liquid supply holes 55...
communicates with the pressurized liquid chamber 6 provided in the center of the jig body 2 through pressurized liquid supply passages 7, 7, . . . , and the respective pressurized liquid supply passages 7.
7... are bored radially in the radial direction.
そして、圧液封入室６の圧液注入口８には圧液封止弁（
図示せず）が設けられている。A pressure liquid sealing valve (
(not shown) is provided.
弾性シールリングは延伸性を有するゴム、合成樹脂等の
材料でつくられているが、その他公知の材料でも差支え
ない。The elastic seal ring is made of extensible rubber, synthetic resin, or other materials, but other known materials may also be used.
発明の効果
薄肉円筒体の被加工物内周面には圧液により延伸拡間し
た多数の弾性シールリングが押接されるから、該内周面
の内径にばらつきがあっても、シールリングの弾性変形
によりそのばらつきに順応して内周面にシールリングが
圧接されるので、シールリングと被加工物の内周面とに
隙間を生ずるおそれなく治具本体と被加工物とが一体的
に保持され、且つ、シールリングはその間隔を密にして
多数設けられていから、シールリングの圧接によって被
加工物の周面に凹凸変形が生ずるおそれなく、したがっ
て、研磨抵抗による被加工物の変形は発生せず、被加工
物の研磨加工精度を著しく向上させることができ、治具
に対する被加工物の装脱も簡単容易に行われる等、すぐ
れた効果を有するものである。Effects of the Invention Since a large number of elastic seal rings stretched and expanded by pressure fluid are pressed against the inner peripheral surface of the workpiece, which is a thin-walled cylindrical body, even if the inner diameter of the inner peripheral surface varies, the seal rings are Since the seal ring is pressed against the inner circumferential surface by elastic deformation and adapts to the variations, the jig body and the workpiece can be integrated into one piece without the risk of creating a gap between the seal ring and the inner circumferential surface of the workpiece. In addition, since a large number of seal rings are provided with close intervals, there is no risk of uneven deformation on the circumferential surface of the workpiece due to pressure contact of the seal rings, and therefore, deformation of the workpiece due to polishing resistance is prevented. The polishing accuracy of the workpiece can be significantly improved without any occurrence of polishing, and the workpiece can be easily loaded and removed from the jig, which has excellent effects.
第１図は本発明の断面図を示し、第２図および第３図は
夫々従来例の断面を示すものである。
１・・・薄肉円筒状の被加工物
２・・・治具本体
４・・・弾性シールリング
６・・・圧液封入室
８・・・圧液注入口
３・：・環状凹溝
５・・・圧液供給孔
７・・・圧液供給通路
第２図
第３図FIG. 1 shows a sectional view of the present invention, and FIGS. 2 and 3 each show a sectional view of a conventional example. 1... Thin cylindrical workpiece 2... Jig body 4... Elastic seal ring 6... Pressure liquid sealing chamber 8... Pressure liquid inlet 3... Annular groove 5... ...Pressure liquid supply hole 7...Pressure liquid supply passage Fig. 2 Fig. 3
Claims (1)
環状凹溝を密に設け、該凹溝の夫々に弾性シールリング
を嵌装するとともに、該凹溝の夫々の底部に圧液供給孔
を設け、中心部に設けた圧液封入室と前記夫々の圧液供
給孔とを半径方向放射状の圧液供給通路で連通し、圧液
封入室の圧液注入口に圧液封止弁を設けた薄肉円筒体の
外周研磨加工治具。A large number of annular grooves are densely provided in the circumferential direction of the circular outer circumferential surface to be fitted into the thin-walled cylindrical body, an elastic seal ring is fitted in each of the grooves, and a pressure liquid is installed at the bottom of each groove. A supply hole is provided, and the pressure fluid filling chamber provided in the center and each of the pressure fluid supply holes are communicated through a radial pressure fluid supply passage, and the pressure fluid is sealed in the pressure fluid injection port of the pressure fluid filling chamber. A jig for polishing the outer periphery of a thin-walled cylindrical body equipped with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2052756A JPH03256669A (en) | 1990-03-06 | 1990-03-06 | Outer periphery polishing work jig for cylinder body with thin wall thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2052756A JPH03256669A (en) | 1990-03-06 | 1990-03-06 | Outer periphery polishing work jig for cylinder body with thin wall thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03256669A true JPH03256669A (en) | 1991-11-15 |
Family
ID=12923736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2052756A Pending JPH03256669A (en) | 1990-03-06 | 1990-03-06 | Outer periphery polishing work jig for cylinder body with thin wall thickness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03256669A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010042488A (en) * | 2008-08-15 | 2010-02-25 | Mori Seiki Co Ltd | Workpiece receiver and grinding machine including the same |
| CN102794611A (en) * | 2012-08-27 | 2012-11-28 | 沈阳航天新乐有限责任公司 | High-precision thin part processing method and auxiliary tool equipment thereof |
| CN104551068A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
| CN111716162A (en) * | 2019-10-20 | 2020-09-29 | 中国航发南方工业有限公司 | Thin-wall hollow slender shaft part grinding deformation control method |
| CN111730421A (en) * | 2019-10-20 | 2020-10-02 | 中国航发南方工业有限公司 | Device for controlling grinding deformation of thin-wall hollow slender shaft |
| CN112372532A (en) * | 2020-10-30 | 2021-02-19 | 常德鑫睿新材料有限公司 | Pneumatic clamp for preventing metal part from deforming |
-
1990
- 1990-03-06 JP JP2052756A patent/JPH03256669A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010042488A (en) * | 2008-08-15 | 2010-02-25 | Mori Seiki Co Ltd | Workpiece receiver and grinding machine including the same |
| CN102794611A (en) * | 2012-08-27 | 2012-11-28 | 沈阳航天新乐有限责任公司 | High-precision thin part processing method and auxiliary tool equipment thereof |
| CN104551068A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
| CN111716162A (en) * | 2019-10-20 | 2020-09-29 | 中国航发南方工业有限公司 | Thin-wall hollow slender shaft part grinding deformation control method |
| CN111730421A (en) * | 2019-10-20 | 2020-10-02 | 中国航发南方工业有限公司 | Device for controlling grinding deformation of thin-wall hollow slender shaft |
| CN111730421B (en) * | 2019-10-20 | 2021-08-06 | 中国航发南方工业有限公司 | Device for controlling grinding deformation of thin-wall hollow slender shaft |
| CN112372532A (en) * | 2020-10-30 | 2021-02-19 | 常德鑫睿新材料有限公司 | Pneumatic clamp for preventing metal part from deforming |
| WO2022088488A1 (en) * | 2020-10-30 | 2022-05-05 | 常德鑫睿新材料有限公司 | Pneumatic clamp for preventing metal part from deforming |
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