Quick-change chuck

Details Quick-change chuck Quick-change chuck

1984-05-16

1985-10-15

Meister, James M.

Cutting by use of rotating axially moving tool

Tool or tool-support with torque-applying spline

10 89F, 10141H, 408239R, B23G 300

Patent

active

045471053

ABSTRACT:
A quick-change chuck for holding a tap of a tap drill comprises a member connectable to the spindle of the drill and a chuck head for holding the tool. The chuck is further provided with the device for an axial compensation for a difference between the spindle stroke and the pitch of the thread of the tap drill. This device includes a compression-responsive device which makes possible an axial compensation in the case of the compression force directed towards the spindle-receiving member, and a separate independent tension-responsive device which makes possible an axial compensation when a tension force acts on the chuck in the direction away from the spindle-receiving member. Each axial compensation device includes axially displaceable balls positioned in axial cylindrical passages provided in the spindle-receiving member and the chuck head, respectively.

REFERENCES:
patent: 3751051 (1973-08-01), Schmidt
patent: 4274768 (1981-06-01), Kato

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