Patent ID: 7192223

Claim:
A servo motor tapping unit for in die installations, comprising: a servo motor having an output shaft; a housing affixed to said servo motor and receiving said servo motor output shaft; a hub rotatably mounted in said housing and rotationally driven by said servo motor output shaft; a tap holder pitch adapter assembly slidably received in said hub with a rotational connection therebetween, said assembly including a tap holder for releasably securing a tap thereon projecting from one side of said housing, and a pitch adapter comprising a rotary threaded element rotated by said hub and a fixed threaded element arranged to advance or retract said tap holder upon rotation thereof in correspondence to the pitch of a tap held therein; a cover piece detachably attached to an external part of said housing on an opposite side from said one side of said housing to be removable therefrom, said cover piece holding and forming a part of said tap holder pitch adapter assembly, whereby said tap holder pitch adapter assembly is slidably removable from said opposite side of said housing with said cover piece remaining attached to said tap holder pitch adapter assembly upon detachment of said cover piece from said housing without disassembling the tap holder pitch adapter assembly.