Patent ID: 11897039
Assignee: nan
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 15:
16. A dual operating tapping head, comprising:
a. a base with a cylindrical body, an upper neck bore and a lower cylindrical cavity with external threads;
b. a drive coupler axially, aliened with said base, said drive coupler includes a lower cylindrical body and an upper neck, said upper neck being inserted into said upper neck bore formed on said base and said lower cylindrical body being inserted into said lower cylindrical cavity formed on said base;
c. a drive sleeve coaxially aligned and affixed to said base, said drive sleeve includes center bore with a plurality of longitudinally aligned internal splines formed thereon;
d. a driver configured to slide axially into said center bore in said drive sleeve, said driver includes an upper region with a plurality of external splines configured to mesh with said internal splines in said drive sleeve thereby enabling said driver to move axially, inside said drive sleeve, said driver includes a lower cavity configured to receive the shaft of a tap and a lower region with external threads;
e. an adjustable clutch pack disposed between said base and said drive sleeve;
f. a clutch cover disposed over said adjustable clutch pack and attached to said base;
g. a retainer spring assembly connected at one end to said drive coupler and connected at an opposite end to said driver;
h. a drive cover extending over said driver and attaching to said clutch cover;
i. a lock nut configured to attach to said external threads on said driver to selectively attach a tap to said driver; and
j. at least one dog screw to selectively lock said drive coupler to said base.