US 11,892,815 B2
Diagnostic apparatus
Hiroyasu Asaoka, Yamanashi (JP); Atsushi Horiuchi, Yamanashi (JP); and Kenjirou Shimizu, Yamanashi (JP)
Assigned to FANUC CORPORATION, Yamanashi (JP)
Filed by FANUC CORPORATION, Yamanashi (JP)
Filed on Oct. 29, 2020, as Appl. No. 17/083,295.
Claims priority of application No. 2019-200916 (JP), filed on Nov. 5, 2019.
Prior Publication US 2021/0132579 A1, May 6, 2021
Int. Cl. G05B 19/4065 (2006.01); G07C 3/00 (2006.01); G06N 20/00 (2019.01); F16H 57/01 (2012.01); B29C 45/76 (2006.01)
CPC G05B 19/4065 (2013.01) [B29C 45/768 (2013.01); F16H 57/01 (2013.01); G06N 20/00 (2019.01); G07C 3/005 (2013.01); B29C 2945/76013 (2013.01); B29C 2945/76949 (2013.01); G05B 2219/33303 (2013.01); G05B 2219/45244 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A diagnostic apparatus that diagnoses a degree of wear of a belt that is provided in an industrial machine and transmits power, comprising: a control unit configured to control a diagnostic operation for driving the belt;
wherein the diagnostic operation comprises: (i) issuing a command causing the belt to be driven at a plurality of position of the belt or under or a plurality of conditions and (ii) issuing a command causing one or more sensors to acquire detection value data under the plurality of conditions;
a first tension calculation unit configured to perform, based on data obtained from the diagnostic operation, a calculation to estimate a first belt tension value that is a tension value of the belt when the belt is not worn; a second tension calculation unit configured to calculate a second belt tension value in a case where a tension reduction factor of the belt and a wear factor of the belt are included; and a third tension calculation unit configured to calculate the degree of wear of the belt based on the first belt tension value and the second belt tension value;
wherein the third tension calculation unit calculates the degree of wear in accordance with iterations of the diagnostic operation.