Модернизация шпиндельного узла для повышения точности станка
11
Upgrade of spindle assembly to increase accuracy
of the machine
© S.N. Brichenkov, I.D. Sokolova
Kaluga Branch of Bauman Moscow State Technical University, Kaluga, 248000, Russia
The article considers one of the problem solutions of increasing processing accu-
racy of the products on metal-cutting machines. Spindle unit is one of the basic
elements that determines the accuracy and productivity of the processing. The
ways to improve the centering accuracy of different designs of vertical milling
machine spindle unit were identified. We reviewed double-seat design of base
model spindle, and introduced intermediate support in one design, in other ver-
sions replacement of bearings in a spindle unit support was carried out.
We made checking calculations of rigidity for all design versions. To this pur-
pose we made calculations of the spindle deflection caused by the resultant of
cutting forces for various design versions. In order to determine the resultant
cutting forces the modes of processing of heat-resistant steel were calculated. In
the result of the study we identified structural scheme that ensured the highest
precision processing.
Keywords:
spindle, accuracy, rigidity.
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Brichenkov S.N.
(b. 1991)
is a 5th year student of the Instrumental Equipment and
Technologies Department of Kaluga Branch of Bauman Moscow State Technical Univer-
sity. e-mail:
Sokolova I.D.
(b. 1963)
graduated from Kaluga Branch of Bauman Moscow Higher
Technical School in 1986. Ph.D., Assoc. Professor of the Instrumental Equipment and
Technologies Department of Kaluga Branch of Bauman Moscow State Technical
University. Research interests: increasing accuracy of machine spindle units.
e-mail:
