Contact-type reliability test bed capable of conducting mixed loading on electric main shaft

A hybrid loading, electro-spindle technology, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as simple functions, large gaps, and inability to change failure modes, reducing friction, preventing loose effect

Active Publication Date: 2014-08-27
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two basic principles that must be followed in the reliability test: one is that the failure mode cannot be changed, and the other is that the failure mechanism cannot be changed
At present, there are some test benches about the reliability of electric spindles in China, but most of them have simple functions, and can only conduct idling experiments or simple single-direction loading tests on electric spindles, and the simulated working conditions are far from the real working conditions.

Method used

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  • Contact-type reliability test bed capable of conducting mixed loading on electric main shaft
  • Contact-type reliability test bed capable of conducting mixed loading on electric main shaft
  • Contact-type reliability test bed capable of conducting mixed loading on electric main shaft

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Embodiment Construction

[0032] refer to Figure 1 to Figure 11 As shown, the present invention is composed of an electric spindle 11, an electric spindle support part, a torque loading part, a connecting shaft unit 6, a radial force electromagnetic loading device 4, an axial force electromagnetic loading device 9 and a swing arm device 7, wherein the electric spindle 11. The axis lines of the connecting shaft unit 6 and the electromagnetic power dynamometer 3 are coaxial, the radial force electromagnetic loading device 4 and the axis line of the connecting shaft unit 6 are perpendicular to each other, and the axial force electromagnetic loading device 9 and the connection The axis lines of the shaft unit 6 are parallel to each other;

[0033] The supporting part of the electric spindle is composed of a clamping device 8, a spindle base 13, a base support block 12, bolts and T-shaped nuts. The electric spindle 11 is fixedly connected to the clamping device 8 by bolts. The main shaft base 13 can adjus...

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Abstract

The invention discloses a contact-type reliability test bed capable of conducting mixed loading on an electric main shaft. The test bed is composed of the electric main shaft, a connecting shaft unit, a torque loading device, a radial force electromagnetic loading device, an axial force electromagnetic loading device and a swing arm device. The test bed can load an axial force, a radial force and a torque on the electric main shaft at the same time, control the magnitudes of the three forces in a coordinate mode to simulate cutting forces in different magnitudes and different directions, really and reliably simulate the cutting forces of the electric shaft in practical working conditions, and provide a test foundation for reliability acceleration tests of the electric shaft.

Description

technical field [0001] The invention relates to a reliability device of an electric spindle, more precisely, the present invention relates to a reliability test bench for mixed dynamic loading on the electric spindle by means of an electromagnet and an electric dynamometer. Background technique [0002] The machining center is an indispensable strategic manufacturing equipment for a country. The quality of the machining center directly reflects the country's technical level and comprehensive national strength, and the reliability of a machining center directly reflects the quality of the machine tool. Central reliability research is very necessary. The electric spindle is an important key functional part of the machining center, and its reliability level is closely related to the reliability level of the whole machine tool. In order to improve the reliability of the whole machine, it is of great significance to study the reliability of the electric spindle deeply. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 陈菲杨兆军王松杨川贵谭壮杜大伟黎刚刚杨超朱光
Owner JILIN UNIV
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