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

Claim 13:
14. 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;
said spindle body is being axially rotatably secured on a first clamping jaw element with a first clamping jaw, said nut element being co-rotationally fixedly secured on a second clamping jaw element with a second clamping jaw, said first clamping jaw forming said first clamping element, and said second clamping jaw forming said second clamping element;
said first clamping jaw is being movable toward said second clamping jaw by rotational actuation of said spindle body in a first rotational direction relative to said nut element by said mutually engaged engagement structures for clamping-in the object; and
said first clamping jaw being movable away from said second clamping jaw by rotational actuation of said spindle body in a second rotational direction opposed to the first rotational direction relative to said nut element by said mutually engaged engagement structures.