高速电主轴的综合测量和评价体系

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RESEARCH ARTICLE
Dashuai ZHOU， Liangsheng WU， Yichuan XIAO
Comprehensive measurement and evaluation system of highspeed
motorized spindle
© Higher Education Press and Springer-Verlag Berlin Heidelberg 2011
Abstract Reducing the manufacturing time is the trend
of high-precision manufacturing， and the precision of a
work-piece is very important for manufacturing industry.
The high-speed motorized spindle is the most critical part
and becoming more widely used in the machine tool at
present， and its precision may affect the overall performance
of high-speed cutting. Most of the studies on highspeed
cutting are focused on the cutting force， the vibration
of the spindle and effects of the spindles thermal
deformations; hence， how to roundly measure and
objectively evaluate high-speed spindle is an imminence
question of it because the comprehensive dynamic properties
and evaluation system of spindles directly affect the
cutting ability of the whole machine tool before they are
manufactured. This paper presents a comprehensive
measurement and evaluation system of high-speed motorized
spindle， which reflects the overall performance of
motorized spindle and bases on international standard.
Keywords high-speed motorized spindle， comprehensive
prope rties， evaluation system
1 Introduction
A typical high-speed motorized spindle system for
machine tool is shown in Fig. 1. It consists of the tool，
tool holder， spindle shaft， bearings， pulley， clamping unit，
and the housing attached to the machine tool. All the above
units are directly driven by brushless motors， and the
spindle shaft is supported by angular contact bearings. For
a very high-speed spindle， as illustrated in Fig. 2， the motor
is usually seated inside the spindle housing for better
balance [1–3]， and its current speed can reach top of 60000
rev/min. At the same time， high powers are required to
deliver the required speed and torque at the high-speed
range， and the speed effects have to be considered in the
design of high-speed spindles.
High-speed motorized spindle is one of the most
important techniques of the super precise machine tool.
Temperature rise， speed control loading characteristics，
precision maintenance， vibration intensity， and rotation
error are not only the key demand of motorized spindles
capability but also an important index to evaluate its
performance. At the same time， how to measure and
Received September 12， 2010; accepted December 20， 2010
Dashuai ZHOU， Liangsheng WU (✉)， Yichuan XIAO
College of Mechanical Engineering & Applied Electronic Technology，
Beijing University of Technology， Beijing 100124， China
E-mail: wulsh###bjut.edu.cn
Dashuai ZHOU
College of Mechanical Engineering Technology， Jiamusi University，
Jiamusi 154007， China
Fig. 1 A spindle system
Fig. 2 High-speed motorized spindle
Front. Mech. Eng. 2011， 6(2): 263–269
DOI 10.1007/s11465-011-0217-z