FR2388171A1 - Verin de support tout particulierement adapte au support d'un porte-outil de machine d'usinage, et notamment de machine de polissage - Google Patents
Verin de support tout particulierement adapte au support d'un porte-outil de machine d'usinage, et notamment de machine de polissageInfo
- Publication number
- FR2388171A1 FR2388171A1 FR7712035A FR7712035A FR2388171A1 FR 2388171 A1 FR2388171 A1 FR 2388171A1 FR 7712035 A FR7712035 A FR 7712035A FR 7712035 A FR7712035 A FR 7712035A FR 2388171 A1 FR2388171 A1 FR 2388171A1
- Authority
- FR
- France
- Prior art keywords
- piston
- cylinder
- supporting
- tool holder
- support cylinder
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Actuator (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Gripping On Spindles (AREA)
Abstract
Ce vérin comporte un cylindre 16 et un piston 18 délimitant entre eux une chambre 26 à volume variable, munie d'une entrée 27 et d'une sortie 28 de fluide de commande. Le piston 18 est percé de conduits radiaux 30 qui débouchent sur sa périphérie et sont, à l'extrémité opposée, en communication avec des conduits axiaux 32 ménages sur la surface extrême de la tige. L'ensemble des conduits 32 et 30 formant des passages de fuite, à débit contrôlé, créant des pertes de charge supérieures à celles dues à l'espace libre annulaire entre le piston et le cylindre. Des passages de fuite 44, 42 sont également prévus entre la tige du piston et le fond du cylindre.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7712035A FR2388171A1 (fr) | 1977-04-21 | 1977-04-21 | Verin de support tout particulierement adapte au support d'un porte-outil de machine d'usinage, et notamment de machine de polissage |
CA277,878A CA1066586A (fr) | 1977-04-21 | 1977-05-06 | Verin de support tout particulierement adapte au support d'un porte-outil de machine d'usinage, et notamment de machine de polissage |
IT67902/78A IT1107344B (it) | 1977-04-21 | 1978-04-20 | Martinetto di sopporto particolarmente per il protautensile di una macchina di lavorazione specialmente di politura |
US05/898,573 US4197786A (en) | 1977-04-21 | 1978-04-21 | Support jack more particularly adapted to support a tool holder of a machine tool and in particular of a polishing machine |
JP4758878A JPS5413092A (en) | 1977-04-21 | 1978-04-21 | Jack for supporting tool holder of working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7712035A FR2388171A1 (fr) | 1977-04-21 | 1977-04-21 | Verin de support tout particulierement adapte au support d'un porte-outil de machine d'usinage, et notamment de machine de polissage |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2388171A1 true FR2388171A1 (fr) | 1978-11-17 |
FR2388171B1 FR2388171B1 (fr) | 1981-10-30 |
Family
ID=9189728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7712035A Granted FR2388171A1 (fr) | 1977-04-21 | 1977-04-21 | Verin de support tout particulierement adapte au support d'un porte-outil de machine d'usinage, et notamment de machine de polissage |
Country Status (5)
Country | Link |
---|---|
US (1) | US4197786A (fr) |
JP (1) | JPS5413092A (fr) |
CA (1) | CA1066586A (fr) |
FR (1) | FR2388171A1 (fr) |
IT (1) | IT1107344B (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4304410A (en) * | 1979-09-20 | 1981-12-08 | Kobe, Inc. | Sealing structure for reciprocating pistons exposed to high pressure differentials |
GB2127340B (en) * | 1982-09-03 | 1986-02-26 | Macdonald & Company John | Apparatus for scabbling concrete |
US4637295A (en) * | 1985-04-09 | 1987-01-20 | Powers Frederick A | Pump seal with curved backup plate |
US4827672A (en) * | 1987-04-27 | 1989-05-09 | Buehler Ltd. | Abrasive cutting wheel system |
US5197371A (en) * | 1988-03-28 | 1993-03-30 | U.S. Philips Corporation | Force limiter and ultrasonic device provided with a force limiter |
US5293809A (en) * | 1988-03-28 | 1994-03-15 | U.S. Philips Corporation | Method of limiting a contact force |
US4945724A (en) * | 1989-01-26 | 1990-08-07 | Cincinnati Milacron Inc. | Apparatus for collecting hydraulic leakage fluid |
US6007310A (en) * | 1993-11-23 | 1999-12-28 | Sarcos, Lc | Volumetric pump with sterility seal |
US5931647A (en) * | 1993-11-23 | 1999-08-03 | Sarcos, Inc. | Volumetric pump with bi-directional piston seal |
US5632606A (en) * | 1993-11-23 | 1997-05-27 | Sarcos Group | Volumetric pump/valve |
GB0409687D0 (en) * | 2004-04-30 | 2004-06-02 | Leuven K U Res & Dev | Liquid seal |
US7353749B2 (en) * | 2005-04-15 | 2008-04-08 | Caterpillar Inc. | Piston retention apparatus and method |
US8991297B2 (en) | 2011-10-13 | 2015-03-31 | Honeywell International Inc. | Compressors with improved sealing assemblies |
CN111810469B (zh) * | 2020-06-04 | 2022-04-19 | 南京航空航天大学 | 一种磁致伸缩轴向双柱塞泵驱动的电静液作动器及其工作方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA558804A (fr) * | 1958-06-17 | T. Adams Donald | Dispositif etanche de piston | |
US17855A (en) * | 1857-07-21 | of same place | ||
US268684A (en) * | 1882-12-05 | Piston for engines | ||
US1524786A (en) * | 1923-04-30 | 1925-02-03 | Jean Marie Louis Philib Pierre | Explosion engine |
US2291243A (en) * | 1939-04-27 | 1942-07-28 | Siam | Pneumatic remote controlled release |
DE2100575C3 (de) * | 1971-01-07 | 1974-09-12 | A.Rohe Gmbh, 6050 Offenbach | Zählvorrichtung für Fahrzeuge |
US3663071A (en) * | 1971-04-23 | 1972-05-16 | W A Kates Co The | Pressure-balanced piston and the like |
US4026562A (en) * | 1974-06-05 | 1977-05-31 | Perkins Engines Limited | Seals |
-
1977
- 1977-04-21 FR FR7712035A patent/FR2388171A1/fr active Granted
- 1977-05-06 CA CA277,878A patent/CA1066586A/fr not_active Expired
-
1978
- 1978-04-20 IT IT67902/78A patent/IT1107344B/it active
- 1978-04-21 JP JP4758878A patent/JPS5413092A/ja active Granted
- 1978-04-21 US US05/898,573 patent/US4197786A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4197786A (en) | 1980-04-15 |
IT7867902A0 (it) | 1978-04-20 |
FR2388171B1 (fr) | 1981-10-30 |
CA1066586A (fr) | 1979-11-20 |
JPS5413092A (en) | 1979-01-31 |
IT1107344B (it) | 1985-11-25 |
JPS5624126B2 (fr) | 1981-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CA | Change of address | ||
CD | Change of name or company name | ||
TP | Transmission of property |