A high-precision method for in-situ measurement of the runout of a rotating body
A measuring method and technology of revolving body, applied in the direction of measuring devices, instruments, etc., can solve the problems of limited accuracy of runout information, inability to separate the rotation error of the machine tool spindle, etc.
Active Publication Date: 2017-06-27
浙江金点玩具有限公司
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Problems solved by technology
[0006] In order to overcome the shortcomings of the prior art that the rotation error of the machine tool spindle cannot be separated and the accuracy of the runout information obtained is limited, the present invention provides a high-precision rotary body runout in-situ measurement that can separate the rotation error of the machine tool spindle and provide high-precision runout information method
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Embodiment Construction
[0055] With reference to accompanying drawing, further illustrate the present invention:
[0056] An in-situ measurement method for the runout of a high-precision rotary body, comprising the following steps:
[0057] 1) Stop the measured shaft and install laser displacement sensors, eddy current sensors and Hall sensors respectively, such as figure 1 As shown, the laser displacement sensor, eddy current sensor and Hall sensor are respectively aligned with the measured axis, the laser displacement sensor and the eddy current sensor are located on the same circle, which is coaxial with the measured rotating body, and the eddy current sensor has 3 One, the Hall sensor is set on one of the eddy current sensors; the laser displacement sensor, the eddy current sensor and the Hall sensor are respectively connected to the processor; a mark that can be recognized by the Hall sensor is installed on the measured shaft;
[0058] 2), such as figure 2 As shown, the position of each senso...
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A method for measuring the runout of a high-precision rotary body in-situ, comprising the following steps: stopping the shaft to be measured, installing a laser displacement sensor, an eddy current sensor and a Hall sensor, and installing a mark that can be recognized by the Hall sensor on the shaft to be measured ; Use the first eddy current sensor equipped with a Hall sensor as a reference to adjust the position of each sensor; adsorb 4 magnets on the surface of the measured shaft, and the magnetic steel serves as a mark that the Hall sensor can recognize; the measured shaft starts to rotate, After the speed is stable, collect the periodic pulse signal output by the Hall sensor; adjust the measured shaft to an appropriate speed; obtain the signals measured by each eddy current sensor; find the comprehensive runout error, and find the runout of the measured workpiece on the measurement section . The invention has the advantages of being able to separate the rotation error of the main shaft of the machine tool and provide high-precision gyration of the gyratory with high-precision jitter information.
Description
technical field [0001] The invention relates to an in-situ measurement method of a revolving body. [0002] technical background [0003] Eddy current sensors are currently widely used in industrial automation systems, which have the advantages of non-contact measurement, high linearity, high resolution, and low requirements for the measurement environment. In industrial automation systems, eddy current sensors are often used to detect the vibration information of rotary equipment, so as to achieve the purpose of real-time monitoring of equipment status. Electrical runout characterizes the inhomogeneity of the electromagnetic properties of the surface material of the revolving body parts, and mechanical runout characterizes the circumferential geometric shape error of the revolving body. The sum of electrical runout and mechanical runout is called total runout. The integrated beating signal will be mixed into the signal monitored by the eddy current sensor, which will affect...
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IPC IPC(8): G01B21/00
Inventor 叶晓平游张平杨将新刘鸣洲
Owner 浙江金点玩具有限公司