Patent ID: 9498856
Filing Date: 2016-11-22
CPC Classification: B21B,B23P,B24B,C21D,F01D,Y02T

Claim Text:
1. A rolling tool device for compression rolling blade elements of a rotor area of a jet engine, comprising: a tool carrier which is connectable to a carrier spindle of a machine tool; a pliers mechanism including two lever arms connected to the tool carrier to be rotatable with respect to each other; a rolling area connected to each lever arm, with a distance between the two rolling areas being variable in dependence on a relative rotary movement between the two lever arms a driving unit connected to at least one of the lever arms for moving the at least one of the lever arms to alter the distance between the two rolling areas; a spacer device separate from the driving unit and connected to the at least one of the lever arms, the spacer device including a first element and a holding element, one of the first element and the holding element connected to the at least one of the lever arms and the other of the first element and the holding element connected to at least one chosen from the tool carrier and the other of the lever arms; the first element and the holding element positioned with respect to each other to form 1) a movement range where the first element and the holding element can move with respect to one another to allow the distance between the two rolling areas to be altered by the driving unit and 2) a stop position where one of the first element and the holding element limits further movement of the other of the first element and the fixed element to limit further reduction in the distance between the two rolling areas and thereby provide a minimum distance between the two rolling areas.