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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12066809 B1

PDFFull Text
Date of Patent:
Aug. 20, 2024

Filed:

Sep. 09, 2021

Method for identifying critical error of worm gear machine and method for iteratively compensating critical error of worm gear machine

Applicant:

Chongqing University, Chongqing, CN;

Inventors:

Shilong Wang, Chongqing, CN;

Chi Ma, Chongqing, CN;

Sibao Wang, Chongqing, CN;

Dechao Heng, Chongqing, CN;

Lingwan Zeng, Chongqing, CN;

Yong Yang, Chongqing, CN;

Canhui Yang, Chongqing, CN;

Assignee:

CHONGQING UNIVERSITY, Chongqing, CN;

Attorneys:

Nath, Goldberg & Meyer

Joshua B. Goldberg

Primary Examiner:

Mohamed Charioui

Assistant Examiner:

Lynda Dinh

Int. Cl.
CPC ...
G05B 19/40 (2006.01); F16H 57/01 (2012.01); G05B 19/404 (2006.01); G05B 19/406 (2006.01); G06F 30/10 (2020.01); G06F 30/27 (2020.01); G06N 5/01 (2023.01); G06F 119/02 (2020.01);
U.S. Cl.
CPC ...
G05B 19/404 (2013.01); F16H 57/01 (2013.01); G05B 19/406 (2013.01); G06F 30/10 (2020.01); G06F 30/27 (2020.01); G06N 5/01 (2023.01); F16H 2057/012 (2013.01); G06F 2119/02 (2020.01);
Abstract

A method for identifying a critical error of a worm gear machine, step 1: obtaining an actual forward kinematic model Tand an ideal forward kinematic model Tfrom a coordinate system of a worm gear hob to a coordinate system of a worm gear, thereby establishing a geometric error-pose error model of the worm gear machine; step 2: regarding the geometric error-pose error model of the worm gear machine as a multi-input multi-output (MIMO) nonlinear system, and solving, by taking the geometric error of each motion axis of the worm gear machine as an input feature X, and a pose error between the worm gear hob and the worm gear as an output variable Y, an importance coefficient of each input feature with a random forest algorithm; and step 3: determining a critical error affecting a machining accuracy of the worm gear machine.

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Wang, Shilong. (2024). Method for identifying critical error of worm gear machine and method for iteratively compensating critical error of worm gear machine (U.S. Patent No. 12066809). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12066809

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