Optimal selection of feed electric drives for boring machines (original) (raw)
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This paper examines the main requirements for the electric drive systems of a class of boring machines with digital program control. On this basis, a methodology for choice of the spindle drives is offered. The algorithm takes into account the specific features of the technological processes, the treated materials, the tools used and their wear, as well as the mechanical gear types. The experimental studies of the implemented electric drives for the spindle are presented and discussed. The research carried out and the results obtained can be used in the development of such drives for the studied class of machine tools.
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This paper deals with some problems in the modernization of a type of machine tools with multi–coordinate drive systems. The basic requirements to the drives of each coordinate axis and the spindle are presented. Using the analysis carried out, a practical approach to appropriate selection of the respective drives is applied. The methodology offered is illustrated with some examples for choice of drives with direct current and alternating current motors. Some experimental research of cases with different feed and spindle drives are described and discussed. Better capabilities of the modernized machines for processing more complex workpieces are achieved, at a relatively low price. This research and the obtained results can be used in the design and tuning of electric drives for the considered type of machines with numerical program control.
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This paper presents an approach for automated selection of tools for turning and boring operations. A prototype is presented that considers all toolholder and insert parameters in the selection process. The design offers flexibility, expandability, and the capability of selecting tools from any tool manufacturer. The resulting software system could be used by a machine manufacturer, a tool consultant, or a shop-floor engineer to modify existing tooling on the machine, recommend new tooling for a product, and solve tool-related problems.