A test method for early troubleshooting of handling industrial robots

Abstract

The invention discloses an early failure removal testing method for a carrying industrial robot. The method overcomes the problem that a robot early failure removal test is long in time and relatively high in economic cost in the prior art. The early failure removal testing method for the industrial robot comprises the following steps: firstly, establishing a reliability model of a tested robot: 1) establishing an intensity function of the tested robot; and 2) adopting a maximum likelihood method to estimate unknown parameters in the intensity function of the tested robot; secondly, calculating the time inflection point of the tested robot from an early failure period to an accidental failure period: 1) calculating an experience failure function; 2) calculating pattern class functions V1 and V2; and 3) solving the time inflection point; thirdly, optimizing the testing time of the tested robot on the basis of solving the time inflection point; and fourthly, carrying out the whole machine early failure removal test of the tested robot: 1) setting preparation conditions before the test; 2) carrying out a functional test; 3) carrying out an idle operating test; 4) carrying out a whole machine load test; and 5) carrying out a whole machine precision and performance checking test.

Description

technical field [0001] The invention relates to a method for troubleshooting early failures of industrial robots, more precisely, the invention relates to a test method for early failures of handling industrial robots. Background technique [0002] At present, my country is vigorously developing industrial robots, and industrial robots are at the core of "Made in China 2025". With the rise of labor costs, the demographic dividend is gradually disappearing, and the substitution of machines is intensifying. Therefore, robots have good application prospects and a broad market. However, the development of industrial robots in my country is backward, and their reliability is far lower than that of similar foreign products. With the increase of the degree of freedom and the improvement of performance of industrial robots, their early failures are gradually increasing. Generally speaking, the failure intensity function curve of industrial robots conforms to the law of "bathtub cur...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of long early troubleshooting test time and high economic cost of robots existing in the prior art, and to provide an early troubleshooting test method for handling industrial robots

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