Tapping head
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United States of America Patent
Stats
-
Nov 24, 1987
Grant Date -
N/A
app pub date -
Jun 25, 1985
filing date -
Jun 29, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tapper for loading a spindle of machine tools with a tap. The tapper proper has a shaft to be driven, which is supported under floating axially by means of a pair of springs the pressurizing direction of which are opposite to each other, built-in. Cutting oil is pressurized to be fed from the outside of the tapper proper through oil passages, respectively which are provided on the tapper proper and the shaft to be driven to a oil hole and, in that case, the oil passages are formed such that the resultant hydraulic pressure does not give rise to an action of breaking the floating state of the shaft to be driven.
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