Electric spindle temperature measuring device based on surface acoustic wave
A surface acoustic wave and temperature measurement technology, which is applied in the direction of measuring devices, thermometers with physical/chemical changes, thermometers, etc., can solve limitations and other problems, achieve compact structure, overcome wiring difficulties, and have high precision and sensitivity.
Active Publication Date: 2014-09-24
ZHEJIANG UNIV
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Problems solved by technology
Addresses many of the limitations of existing measurement techniques
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[0045] Below in conjunction with each accompanying drawing, the present invention is described in detail.
[0046] Such as figure 1 , 2 As shown, the electric spindle includes a housing composed of a housing body 4, a front end cover 2 and a rear end cover 5, a rotating shaft 1 disposed in the electric spindle housing, and an annular mounting seat 8 fixed to the front end cover and located on the periphery of the rotating shaft. .
[0047] Such as figure 1 , shown in 2, a surface acoustic wave-based electrical spindle temperature measurement device, including:
[0048]The annular guide groove 9 is arranged on the side wall opposite to the rotating shaft of the mounting seat, and the annular guide groove has a conductive material layer;
[0049] The surface acoustic wave temperature sensor 10 is fixed on the rotating shaft, and the signal output end of the surface acoustic wave temperature sensor is slidingly fitted with the annular guide groove and is in contact with the c...
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The invention discloses an electric spindle temperature measuring device based on the surface acoustic wave. The electric spindle temperature measuring device mainly comprises an annular guide groove which is arranged in an electric spindle housing and which is provided with a conductive material layer; a surface acoustic wave temperature sensor which is fixedly arranged on a rotation shaft, and of which the signal output end is in sliding fit with the annular guide groove and is contacted with the conductive material layer; an antenna, of which one end extends to the annular guide groove and is contacted with the conductive material layer and the other end extends out of the housing; and an inquiry-end antenna which is arranged outside the housing and is cooperative with the antenna to carry out signal transmission. Through the antennas, the annular guide groove and slide contacts in sliding fit with the conductive material layer, temperature signals detected by a sensor sensitive element are transmitted outside the housing, thereby solving the problem that electromagnetic signals are hard to be transmitted through the closed metal housing; and temperature of the rotation shaft of the electric spindle can be monitored in a wireless, passive and long-acting manner.
Description
technical field [0001] The invention relates to the field of temperature measurement of machine tool spindles, in particular to a wireless passive temperature measurement device for machine tool electric spindles. Background technique [0002] The electric spindle is a new technology that integrates the machine tool spindle and the spindle motor in the field of CNC machine tools in recent years. The main drive system of the high-speed CNC machine tool cancels the pulley drive and gear drive. The main shaft of the machine tool is directly driven by the built-in motor, so that the length of the main transmission chain of the machine tool is shortened to zero, and the "zero transmission" of the machine tool is realized. This type of transmission structure in which the spindle motor and the machine tool spindle are "integrated into one" makes the spindle components relatively independent from the transmission system and the overall structure of the machine tool, so it can be ma...
Claims
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Login to View More IPC IPC(8): G01K11/22G08C17/02
Inventor 姚鑫骅栾丛丛傅建中曾庆辉陈秋月
Owner ZHEJIANG UNIV