Tool assembly having a replaceable tool head

Details Tool assembly having a replaceable tool head Tool assembly having a replaceable tool head

1985-02-27

1986-10-07

Husar, Francis S.

Turning

Severing or cut-off

Interrelated means for tool infeed and circumrotation

82 36R, 408239A, B23B 2900

Patent

active

046152440

ABSTRACT:
A tool assembly includes a tool holder, a tool head and a clamping arrangement for rapidly releasably tightening the tool head to the tool holder. The clamping arrangement includes a clamping bar having a longitudinal axis and being received in the tool holder and a clamping piston connected to the clamping bar for displacement therewith. The clamping piston has first and second wedge faces arranged symmetrically to the bar axis and each defining therewith a first acute angle of at least 45.degree.. The clamping arrangement further has first and second cams movable in a direction of motion perpendicular to the bar axis. Each cam has a camming face constituted at least in part by a surface defining, with the direction of motion of the cams, a second acute angle equalling the difference between 90.degree. and the first acute angle. Further, a mechanism is provided for displacing the cams towards or away from one another for effecting, by camming action between the wedge faces and the camming faces, longitudinal displacements of the clamping piston and the clamping bar.

REFERENCES:
patent: 2374919 (1945-05-01), Bruseth
patent: 3380326 (1968-04-01), Waddy
patent: 4406195 (1983-09-01), Kruger et al.

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