Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1991-06-14
1993-04-20
Howell, Daniel W.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
192 51, 192108, 408 56, 408134, 408139, 470181, 470198, B23G 300
Patent
active
052036510
ABSTRACT:
A tapping attachment for driving a tapping spindle constructed to be adapted for both direct drive and reverse drive of the spindle. The drive of the spindle is by way of a resiliently mounted dog ring having rigid radially extending drive dogs, extending radially outwardly and inwardly from a drive ring. The driving dogs are rigid, having slanting sides to accommodate clutching engagement and disengagement. Clutching engagement and disengagement occur as a result of relative axial movement as between the attachment and the drive spindle. The drive spindle has a central bore in which is provided an insert member having an axial bore which is connected to a flexible tube within the bore of the spindle, which accommodates relative axial movement, the flexible tube communicating with a similar bore in a tap itself. These bores provide a channel for continuously supplying coolant to the machine and to the spindle itself. In high pressure coolant applications the invention provides a rigid conduit tube together with back pressure relief arrangements.
REFERENCES:
patent: 1381197 (1921-06-01), John
patent: 4277209 (1981-07-01), Benjamin et al.
patent: 4396317 (1983-08-01), Staron et al.
patent: 4740116 (1988-04-01), Wellach
patent: 4812089 (1989-03-01), Petrie
Evanns Joseph R.
Howell Daniel W.
Tapmatic Corporation
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