US 12,365,038 B2
Pressure-medium-controlled countersinking tool with blade centering
Harry Studer, Balgach (CH)
Assigned to Heule Werkzeug AG, Balgach (CH)
Filed by Heule Werkzeug AG, Balgach (CH)
Filed on Dec. 16, 2021, as Appl. No. 17/553,336.
Claims priority of application No. 20215337 (EP), filed on Dec. 18, 2020.
Prior Publication US 2022/0193794 A1, Jun. 23, 2022
Int. Cl. B23B 51/10 (2006.01)
CPC B23B 51/102 (2013.01) [B23B 51/101 (2013.01); B23B 2270/025 (2013.01); B23B 2270/24 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pressure-medium-controlled countersinking tool with one or more machining blades which are arranged in a rotatably driven main body and which can be actuated in their pivot position by supplying a pressure medium, wherein the actuation of the at least one blade takes place via at least one piston-cylinder unit actuated by the pressure medium, wherein the at least one blade is pivotably mounted on a bearing bolt forming a pivot axis and can be extended from a blade window, wherein a centering device is arranged between the blade and the blade window of a blade housing at a radial distance from the pivot axis and within the pivot range of the at least one blade, the centering device comprises a centering groove arranged on the foot side on the underside of the blade, which in the cutting position is in positive engagement with a centering bolt on the housing side, and the centering bolt has a round profile and protrudes from a mounting bore with the upper part of its outer circumference and forms a complementary centering surface there for engaging the centering groove.