Patent ID: 11926020
Assignee: FRANZ HAIMER MASCHINENBAU KG
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A clamping apparatus for clamping-in an object, the clamping apparatus comprising:
first and second clamping elements defining a spacing therebetween;
a spindle body and a nut element to be screwed together by screwing actuation of at least one of said spindle body or said nut element to decrease said spacing for clamping-in an object disposed between said clamping elements;
said nut element having a receiving body and a plurality of roller bodies with a defined roller engagement structure, said roller bodies being axially rotatably secured on said receiving body and distributed on said nut element in a circumferential direction;
a plurality of engagement regions at least one of distributed or spaced apart from one another on said spindle body, each of said engagement regions having one respective spindle body engagement structure, said spindle body engagement structures of said spindle body being engaged by or configured to be engaged by said roller engagement structures of said roller bodies;
said nut element configured to be screwed to said spindle body by engagement of said engagement structures of said spindle body and of said roller bodies with one another;
each spindle body engagement region being assigned a receiving slot running in an axial direction, adjoining a respective spindle body engagement region in the circumferential direction, and having a contour adapted to said roller bodies;
said roller bodies of said nut element being disposed with a part region in said receiving slots in a defined rotational position of said nut element relative to said spindle body; and
upon said roller bodies being disposed in said receiving slots, said engagement structures of said spindle body and of said roller bodies being out of engagement, and said nut element being displaceable in the axial direction relative to said spindle body.