Method and apparatus for setting up tools, work pieces and simil

Details Method and apparatus for setting up tools, work pieces and simil Method and apparatus for setting up tools, work pieces and simil

1978-12-20

1981-01-13

Vlachos, Leonidas

Turning

Severing or cut-off

Automatic and/or triggered control

279 2A, 407 31, 409234, B23B 3140

Patent

active

042442486

ABSTRACT:
The invention relates to a method and an apparatus for setting up tools, work pieces and similar (11, 12, 19) on a rotatable spindle (10) by means of a clamp bushing comprising a double walled sleeve (2, 3) which is closed at both ends and which has at one end a fixed radially outwards directed collar (5) and at the opposite end means (6-9) for axially securing the tools or similar (11, 12, 19) on the clamp bushing, and in which the bushing is formed with means (16, 17) for providing a pressure in a recess (4) formed between the outer wall (2) and the inner wall (3) of the bushing and for releasing the pressure from said recess. One or more tools or similar having center bores fitting the outer dimension of the bushing are slipped onto the bushing, whereupon the axial locking means (6-9) are mounted at the outer end thereof in order to secure the tools in the axial direction on the bushing sleeve, and the bushing sleeve together with the tools or similar are slipped onto a rotatable spindle (10), and a pressure medium inside the recess (4) of the bushing sleeve is pressurized, whereby the two walls (2, 3) of the sleeve are subjected to a radially inwards and outwards directed pressure providing some expansion outwards and inwards respectively of the said walls, whereby the sleeve (2, 3), the rotatable spindle (10) and the tool or tools (11, 12, 19) are interconnected as a coherent unit which can easily be handled.

REFERENCES:
patent: 436223 (1890-09-01), Evely
patent: 1465240 (1923-08-01), Schurr
patent: 3242818 (1966-03-01), Kastler

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