CHUCK

PURPOSE:To enable a position of an attracting portion to be changed correspondingly to the shape and working portion of a workpiece without limiting the working portion by providing movably and fixedly a plurality of vacuum adsorbing portions for holding the workpiece in a chuck body. CONSTITUTION:A...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KANAMARU TOSHIMI, KINUGAWA KAZUNARI, SHIGA TOMOYA, IKEGAMI KENZOU
Format:	Patent
Sprache:	eng
Schlagworte:	COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING HAND TOOLS MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MANIPULATORS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To enable a position of an attracting portion to be changed correspondingly to the shape and working portion of a workpiece without limiting the working portion by providing movably and fixedly a plurality of vacuum adsorbing portions for holding the workpiece in a chuck body. CONSTITUTION:A chuck body 11 is formed radially with dovetail grooves 14. vacuum attracting portions 12a-12d are fromed on the respective under surfaces with projections to be inserted into the dovetail grooves 14 respectively which guide the athracting portion 12a-12d. A lock screw is vertically threaded into the dovetail 14 to abut against the projection on the under surface of the vacuum attracting portions 12a-12d and fix said portions 12a-12d to the chuck body 11. The vacuum attracting portions 12a-12d are located correspondingly to the shape of a workpiece 24 and the working portion of a tool 25 to hold the workpiece 24. The vacuum attracting portions 12a-12d may be replaced by electromagnetic attracting portions if necessary.