Feed adaptation core drill

Details Feed adaptation core drill Feed adaptation core drill

2007-05-01

2007-05-01

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Processes

Bit detachable

C408S010000, C408S012000, C173S176000

Reexamination Certificate

active

10768772

ABSTRACT:
A process for controlling and a core drilling machine (1) having an electrical motor (2) for rotational drive of a core drill bit (3) having cutting edges (5) oriented axial to a work piece (4), a feeding means (6) for generating the feed of the core drill bit (3) against the work piece (4) and having a controller (7) for controlling, relative to a first one-to-one control parameter, detected by a sensor (8, 8′) for electrical power consumption (P) or torque (M). A force sensor (9, 9′) is connected to the controller (7) for detecting the contact pressing force (FN) of the core drill bit (3) as the second control parameter.

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European Search Report of EP 04 10 0371, dated May 11, 2004.

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