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Off-line Calibration Robot Accuracy Method Based on CAE Simulation

A robot and precision technology, applied in the direction of instruments, special data processing applications, electrical digital data processing, etc., can solve the problems of high cost of software and hardware, affecting work efficiency, etc., and achieve the effect of improving absolute positioning accuracy and efficiency

Active Publication Date: 2018-06-15
SUZHOU BEISHUO INSPECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Online calibration of robot accuracy affects work efficiency, and the cost of software and hardware is high

Method used

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  • Off-line Calibration Robot Accuracy Method Based on CAE Simulation
  • Off-line Calibration Robot Accuracy Method Based on CAE Simulation
  • Off-line Calibration Robot Accuracy Method Based on CAE Simulation

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Embodiment Construction

[0020] Such as Figure 1~3 The CAE simulation-based off-line calibration robot accuracy method shown is different in that it includes the following steps:

[0021] Firstly, the loss assessment of robot prototype precision is carried out to obtain the source of precision loss. During this period, under the specified working conditions (that is, the specific working environment and load conditions of the robot), evaluate the source of the loss of accuracy of the online operation of the robot prototype. Specifically, due to the on-line measurement of the size of the automobile assembly, the repeat positioning accuracy of the robot is very high. However, the industrial site environment is harsh, and there are often vibration sources such as forging and impact around the production line. The robot is an open-loop cantilever system, and the overall or partial structure is easily affected by vibration. At the same time, the ambient temperature of the production line is constantly c...

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Abstract

The invention relates to a CAE simulation-based off-line calibration robot precision method, which is characterized in that the loss assessment is performed on the precision of the robot prototype to obtain the source of the precision loss. Through robot prototype CAE virtual simulation. To obtain the analysis results of related field variables or historical variables. And, through the physical test of the robot prototype, the analysis results of the relevant field variables or historical variables are obtained. Finally, the robot accuracy is correlated with offline data and dynamic compensation is realized. Thus, the repeated positioning accuracy of the robot can be ensured, and the absolute positioning accuracy of the robot can also be improved. Moreover, while reducing costs, the efficiency of robot operations is improved.

Description

technical field [0001] The invention relates to a method for off-line calibration of robot precision, in particular to a method for off-line calibration of robot precision based on CAE simulation. Background technique [0002] With the advent of the Industry 4.0 era, the application of industrial robots in my country is showing an inflection point. Robots can replace humans in operations. Traditional industrial robots are mainly used in material handling, welding, spraying, etc., and do not require high robot motion accuracy. Traditional industrial robots have been able to meet the needs of industrial applications. With the development of the machinery industry, especially the automobile and aerospace industries, the new requirements of robots in the industrial field are diversified, such as dimension measurement, special processing, etc., and the requirements for repeat positioning accuracy, absolute positioning accuracy or motion track accuracy of robots are getting highe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 张一丁卞大超宋孚群王岩刘铎王浩田张冬运张敏
Owner SUZHOU BEISHUO INSPECTION TECH CO LTD