Drive unit for rotary tools

Details Drive unit for rotary tools Drive unit for rotary tools

1986-03-07

1988-03-08

Bilinsky, Z. R.

Gear cutting, milling, or planing

Milling

With detachable or auxiliary cutter support to convert...

409215, 409233, B23C 526, B23C 700

Patent

active

047297000

ABSTRACT:
A drive unit for a rotary tool, which unit includes a housing, a drive shaft mounted in the housing for transferring rotational drive force from a rotary drive to the tool, and a clamping mechanism mounted in the housing for generating a tool clamping movement along the axis of the drive shaft. The drive shaft is a hollow shaft, the clamping mechanism includes a pull rod mounted in the drive shaft and coaxially positioned relative to the drive shaft, the pull rod being mounted to be axially displaceable and fixed against rotation relative to the drive shaft, and the unit further includes a blocking device operative between the drive shaft and the housing for permitting the drive shaft to rotate relative to the housing only when the drive shaft is coupled to the rotary drive.

REFERENCES:
patent: 3633457 (1972-01-01), Reebe et al.
patent: 3813782 (1974-06-01), Nilles et al.

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