Auxiliary device for exact boring of holes in surfaces of wide workpieces with drilling bush in fixture, has fixture of drilling bush, which is pivoted in ring shaped circular base plate in rotating and ascertainable way

摘要

The device has a fixture of a drilling bush, which is pivoted in a ring shaped circular base plate (2) in a rotating and ascertainable way. The circular base is located at the outside edge. A circulating nut (15) is connected to a connecting unit in rotating and ascertainable manner. The connecting unit has a nut for shifting and ascertaining the receiver of a guide rail (22) and/or a handle (14b). The drilling bush has multiple different drill diameters lying on a circular line and is brought by the rotation of drilling bush in the working position of bore channels. An independent claim is also included for the profile components of the fiber-reinforced plastic profile frame with a load-bearing element.