Tool head, in particular a facing-tool head
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United States of America Patent
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Nov 17, 1998
Grant Date -
N/A
app pub date -
Mar 8, 1996
filing date -
Sep 11, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a facing-tool head with a main body (10) which can be attached to a machine spindle, a work slide (14) which can be moved along the main body (10) essentially at right angles to the axis (12) of the spindle and which has a tool-holder with a fixing mechanism (26) to hold a tool in place, and a mechanism for adjusting the work slide (14). This adjustment mechanism includes a central, longitudinally movable adjusting rod (18) which passes through the hollow machine spindle (44) into the main body (10) and gearing means (20) which translate the longitudinal motion of the actuator rod into the transverse motion of the work slide (14). In order to ensure sufficient application of force between the adjusting rod (18) and the work slide (14), and hence suitable sliding characteristics and high adjustment precision, the invention proposes that the end of the adjusting rod (18) nearest the work slide is fitted with two off-center gear rods (20) mounted diametrically opposite each other in the main body (10) with their axes parallel to that of the main body, the gear rods having helical toothing (54) facing essentially in towards the interior of the main body and engaging with matching helical toothing (56) on the work slide (14) facing radially outwards.
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