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1. (WO1991007246) ELECTRODE HOLDER FOR DISCHARGE MACHINING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007246 International Application No.: PCT/JP1990/001511
Publication Date: 30.05.1991 International Filing Date: 20.11.1990
IPC:
B23H 7/26 (2006.01) ,F16C 17/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
H
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
7
Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
26
Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
17
Sliding-contact bearings for exclusively rotary movement
Applicants:
SODICK CO., LTD. [JP/JP]; 5-1, Shinyokohama 1-chome Kouhoku-ku Yokohama-shi Kanagawa 222, JP (AllExceptUS)
MURAYAMA, Shinichi [JP/JP]; JP (UsOnly)
Inventors:
MURAYAMA, Shinichi; JP
Agent:
KAWAKUBO, Shinichi; Room 202, New Life Shinjuku-sanbankan Bldg. 16-10, Tomihisacho Shinjuku-ku Tokyo 162, JP
Priority Data:
1/30356022.11.1989JP
Title (EN) ELECTRODE HOLDER FOR DISCHARGE MACHINING
(FR) PORTE-ELECTRODE POUR USINAGE PAR PROCEDE ELECTROLYTIQUE
Abstract:
(EN) An electrode holder for discharge machining for holding a thin rotary shaft for an electrode at the axis of rotation, provided with a plurality of guide means disposed inside a case and coming into sliding contact with the outer periphery of the shaft for centering the shaft; a liquid stored in the case; and means for solidifying this liquid. Since a solid bearing formed by solidifying the liquid guides the rotary shaft, the play between the rotary shaft and the guide means resulting from the limit of mechanical accuracy can be absorbed and a holder with low heat buildup can be obtained.
(FR) Sont décrits un porte-électrode pour usinage par procédé électrolytique, destiné à porter un arbre rotatif mince pour une électrode au niveau de l'axe de rotation, pourvu d'une pluralité de moyens de guidage disposés à l'intérieur d'un récipient et venant en contact de glissement avec la périphérie extérieure de l'arbre en vue de son centrage; un liquide stocké dans le récipient; et des moyens pour solidifier ce liquide. Puisqu'un coussinet solide formé par la solidification du liquide guide l'arbre rotatif, le jeu entre ce dernier et les moyens de guidage, résultant des limites de la précision mécanique, peut être absorbé, et on obtient ainsi un porte-électrode à faible développement de chaleur.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)