Patent ID: 9610639
Date: 2017-04-04
CPC Classifications: B23B,Y10T

Claim:
1. A head unit for a stop holder for stabilizing a drilling machine during at least one of placement and machining of a component hole in at least one component that is arranged so as to be adjacent to, or in sections overlapping with, some other component, the head unit comprising: a tubular base body which by way of a rear assembly section is configured to be detachably attached to the stop holder, an axial tool space for leading through a tool chucked in the stop holder, and a front rest section arranged to rest on two of the adjacent components, the front rest section comprising a front projection that forms a second contact surface, which is displaced in an axial direction relative to a first contact surface of the front rest section; wherein one of the two adjacent components has a height displacement relative to the other of the two adjacent components in a region of the component hole to be processed; wherein the front projection is provided to compensate for the height displacement; wherein the second contact surface presses on the component which is located lower in the axial direction than the adjacent component; wherein the front rest section interacts with an adjustment element that forms a third contact surface that is adjustably positionable in the axial direction; wherein, in case the height displacement between the two adjacent components is smaller than the axial displacement between the first contact surface and the second contact surface on the front projection, the third contact surface is positionable at an axial displacement from the second contact surface smaller than the axial displacement between the first contact surface and the second contact surface; wherein in this case, the third contact surface acts as a contact and presses on the component which is located higher in the axial direction than the adjacent component instead of the first contact surface, in order to stabilize the head unit before processing the component hole.