Tool

Details Tool Tool

1995-04-10

1998-01-13

Smith, Scott A.

Tool driving or impacting

Impacting devices

With means for rotating tool

279 193, B23B 3102, B25D 1708

Patent

active

057069034

ABSTRACT:
A device on machine tools for transmitting a rotational and/or percussive movement to a tool (22) has two or three rotational drivers (14) which are arranged so as to be symmetrical with respect to rotation. The rotational drivers (14) are stepped and flank parts (16) extending radially to the center axis (15) alternate with guide portions (17) extending along a cylindrical outer surface. Locking members (20) which engage in depressions (28) at the tool (22) are arranged in the region of the rotational drivers (14) for the axial locking of the tools (10). With the tool holder (10) according to the invention, tool shafts having diameters between 8 and 12 mm can be clamped without converting or modifying the tool shafts. Good true running characteristics can be achieved in spite of the stationary rotational drivers (14).

REFERENCES:
patent: 3916435 (1975-10-01), Camplin
patent: 4107949 (1978-08-01), Wanner et al.
patent: 4123074 (1978-10-01), Wanner
patent: 4131165 (1978-12-01), Wanner et al.
patent: 4206820 (1980-06-01), Bailey et al.
patent: 4691929 (1987-09-01), Neumaier et al.
patent: 5340245 (1994-08-01), Bloechle et al.
patent: 5346340 (1994-09-01), Runge
Patent Abstracts of Japan vol. 16, No. 227 (E-1207) May 26, 1992.

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