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В.В. Додонов
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Инженерный журнал: наука и инновации
# 6·2016
Working accuracy enhancement
for machine tools with digital programming control
© V.V. Dodonov
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article is concerned with the problems of working error appearance on metal-cutting
machine tools with digital programming control. First, we demonstrate the calculated
and experimental data about a working accuracy, examine the causes of typical errors in
assemblies, gears and devices of the metal-cutting machine tools with digital program-
ming control and analyze their influence on the working accuracy. Then, we look at the
accuracy measurement production methods of the blanks machined with digital pro-
gramming control. These methods are used in mechanical assembly. Moreover, we dis-
cuss the working accuracy requirements depending on the accuracy requirements for the
operation of the products using these blanks. Next, we present data about the ratio of the
resultant error ultimate constituents in point-to-point and contour-cutting work. We also
give careful consideration to the problems of forming of technological reliability as the
feature which allows preserving the initial equipment precision and the working accura-
cy during the time. In addition, the article touches upon the possibilities of working accu-
racy improvement at the expense of control program correction and elementary errors
partial compensation use. Finally, we provide data about existed working accuracy en-
hancement methods used by domestic and foreign machine tool companies.
Keywords
: cutting machine tool with digital programming control, working accuracy,
control program correction, working errors compensation.
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