Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Black Decker Inc.

Alber, Bernd

Andreas Jacubasch

Hans-Joachim Bayer

Reinhard Plietsch

Christian W Frey

Helge-Björn Kuntze

Helge Bjorn Kuntze

Herbert Rother

Christan Frey

Disclosed is an optimizing method for regulating the operating state of a guided machine tool having a tool rotating at a certain speed and subjected to a percussion frequency during a boring action, in which the tool, subjected in addition to a force, is driven into an object of a given material. The method includes, determination of the parameters characterizing the actual operating state of the machine tool; conduction of an adaptive process analysis based on the determined parameters in order to obtain parameter-specific, relevant characteristics; evaluation of the parameter-specific, relevant characteristics within the framework of a logical decision-making process in order to obtain information characterizing the actual operating state; selection of known reference data of the utilized tool describing the operating state and of the to-be-machined material according to a given quality criterion; determination of an optimum operating point for the machine tool determinable by the rotational speed and percussion frequency by comparison of the information characterizing the actual operating state with the selected reference data; and regulation of the machine tool regarding the rotational speed and percussion frequency based on the determined optimum operating point.

Optimizing method for regulating the operating state of a guided machine tool comprising a rotating percussion tool during a boring process

Control apparatus for a horizontal boring tool is described which drives a boring lance via boring rods. The tool includes an input interface for receiving actual values of controlled variables of the horizontal boring tool, and an output unit for issuing control signals for controlling the horizontal boring tool. Between the input interface and the output unit is provided a fuzzy control unit which determines the control signals for activation of the horizontal boring tool from the actual values of the controlled variables and the desired values for the controlled variables by fuzzy logic while taking into account heuristic process values. The control apparatus permits automatic operation of the horizontal boring tool with good course steering and high precision.

Control means for a horizontal boring tool

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Karlsruhe, Germany

Andreas Jacubasch