Intelligent surface detection and core drilling start

US10583582B2 · kind B2 · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Tobias Drexl · Weil, DE
• Andreas Hartig · Augsburg, DE
• Thomas Schmalholz · Kaufbeuren, DE
• Bernhard Link · Schwabbruck, DE
• Goran Golubovic · Munich, DE

Key dates

• Filing date: Apr 22, 2016
• Grant date: Mar 10, 2020
• Expiry date: Jul 15, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23B2270/54
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A control method for a core drill and a feed device for driving the core drill along a machine holding device, including the method steps: moving the core drill in a first direction; detecting the surface position of a material based on reaching a threshold value for at least one feed device parameter as a first reference value; moving the core drill in a second direction; operating the core drill in a tapping mode; moving the core drill in the first direction; detecting the surface position of a material based on reaching a threshold value for at least one corresponding drilling parameter as a second reference value; activating a water supply; and activating a regulating and control unit for adapting at least one drilling parameter as a function of at least one parameter of the feed device. A feed device for driving a core drill along a machine holding device for the use of the method, a core drill for the use of the method, as well as a core drilling system including a core drill and a feed device for driving the core drill along a machine holding device for the use of the method.