Scholarly record

DESIGN CHANGE FUNCTION OF ROTARY TABLE OF A MACHINE TOOL

Ing. Martin Prochazka, Assoc. prof. Ing. Jiri Fries, Ph.D.

Abstract

Development of energy, nuclear, engineering, petrochemical and chemical industry requires very massive and large workpieces. Requirements for machining workpieces of these department is the necessary adapt to the design and construction of machine tools. Analyses were conducted to carry out the overhaul and modernization for heavy cutting machine SKODA W 200 HC with digital subtraction, turntable S 100 C from 0 to 360пїЅ, while the carrying capacity of the turntable 100 t. The complexity of the repairs consisted of meticulous technical preparation, and not only revamp facilities at full CNC control working axes (X, Y, Z, C, W), but especially innovate rotary table so that it can rotate around an eccentric workpiece selected axis. The turntable before repair did not get this structural change. This operator intervention is significantly increased offer machining heavy pieces up to 100 t. Output specification will publish a simple description of successive works, in particular structural element turntable - finish sluicing hydrostatic liquid, guaranteeing planeness clamping plate for: ? Diagram of the maximum cutting force during rotational movement of the table in the tangential direction depending on the distance of the force from the rotational axis of the table. ? Depending on the maximum weight of the workpiece on distance to centroid is the axis of rotation of the table.

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DOI resolver: doi.org/10.5593/sgem2017/13/s03.026

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