Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1974-10-04
1976-11-02
Meister, J. M.
Chucks or sockets
With fluid-pressure actuator
Socket type
279 1ME, 408240, B23B 3130
Patent
active
039892603
ABSTRACT:
Tool holder for use with machine tools, the tool holder having two aligned cylindrical bores of different diameters, separated by a circumferential groove, which is in communication with a hole through the body of the tool holder through which hydraulic fluid can be supplied. The cylindrical shank of the tool has correspondingly two cylindrical surfaces of different diameters with conical shoulders, one of which is in the end of the shank, while the other connects the cylindrical surfaces. The relaxed diameters of both stepped holes in the tool holder are smaller than the diameters of both cylindrical surfaces of the cylindrical shaft of the tool, the tool shank being press fitted into the tool holder. The advantages of the sectional tool unit according to the present invention are that the need of fastening elements is eliminated, while the mounting surfaces of the tool shank and the tool holder are very effectively engaged and can be machined with a high precision which determines the precision of the tool unit as a whole.
The invention also relates to the methods of assembly and disassembly of the tool and tool holder.
REFERENCES:
patent: 2942891 (1960-06-01), Zale
patent: 2963298 (1960-12-01), Better et al.
patent: 3516681 (1970-06-01), Cox et al.
patent: 3592482 (1971-07-01), Better et al.
IBM Technical Disclosure Bulletin, vol. 10, No. 9, Feb. 1968, Tool Holder Ass'y. J. A. Ditson.
Baliev Nikolay Vassilev
Tchobanov Konstantin Kirilov
Zarvenkov Alexander Yordanov
Zonkov Simeon Dontchev
Briggs W. R.
DSO "ZMM"
Meister J. M.
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