Title:
PROCESSING METHOD WITHOUT INTERMEDIATE-FREQUENCY ERROR UNDER MAGNETORHEOLOGICAL POLISHING MAGIC ANGLE-STEP
Document Type and Number:
WIPO Patent Application WO/2022/007084
Kind Code:
A1
Abstract:
A processing method without intermediate-frequency error under a magnetorheological polishing magic angle-step. The method comprises the steps of: firstly, performing measurement to obtain a magnetorheological removal function, and also determining the control precision of a machine tool; performing a two-dimensional Fourier transform on the removal function, performing compensation filtering on a spectrum on the basis of the control precision of the machine tool, and analyzing a corresponding step of the lowest amplitude point of the filtered two-dimensional spectrum in a magic angle direction; planning a grid path at a given step on the basis of adjusting the direction of a processing path or an attitude of a magnetorheological polishing wheel such that the included angle between the polishing wheel and the path is a magic angle; and finally, controlling the processing of the machine tool. By means of the method, no additional cost is needed; only the included angle between a removal function and a path, and a path step need to be changed to optimal values obtained by means of theoretical analysis; and the amplitude of a trajectory-like intermediate-frequency error can theoretically be far lower than that of other processing noises and thus disappear, such that processing without an intermediate frequency can be realized, and a low-frequency and high-frequency error of an element is not affected.
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Inventors:
WEI CHAOYANG (CN)
WAN SONGLIN (CN)
SHAO JIANDA (CN)
GU HAOJIN (CN)
WAN SONGLIN (CN)
SHAO JIANDA (CN)
GU HAOJIN (CN)
Application Number:
PCT/CN2020/107306
Publication Date:
January 13, 2022
Filing Date:
August 06, 2020
Export Citation:
Assignee:
SHANGHAI INST OPTICS & FINE MECH CAS (CN)
International Classes:
B24B1/00
Foreign References:
| CN111190386A | 2020-05-22 | |||
| CN102848287A | 2013-01-02 | |||
| CN101250029A | 2008-08-27 | |||
| CN110245317A | 2019-09-17 | |||
| CN109765839A | 2019-05-17 | |||
| US20060252354A1 | 2006-11-09 | |||
| CN101644915A | 2010-02-10 |
Attorney, Agent or Firm:
SHANGHAI HENGHUI INTELLECTUAL PROPERTY AGENCY (CN)
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