An Improved Approach for the Acceleration and Deceleration of Industrial Robots and CNC Machine Tools

2006 ◽  
Author(s):  
Cui Jing ◽  
Chu ZhongYi
Keyword(s):  
Machine Tools ◽  
Industrial Robots ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Acceleration And Deceleration

Control of Machine Tools and Robots

1986 ◽  
Vol 39 (9) ◽  
pp. 1331-1338 ◽  
Author(s):  
Yoram Koren
Keyword(s):  
Machine Tools ◽  
Degrees Of Freedom ◽  
Feedback Loop ◽  
Control Structure ◽  
Industrial Robots ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Control Schemes ◽  
Position Feedback ◽  
Recent Developments

The principal control structure of CNC machine tools and industrial robots is similar, since in both systems each axis of motion is separately controlled with a position feedback loop. Nevertheless, the control of robots is more complex, since they include more degrees of freedom and the motion of each joint is not independent of other joints. This paper compares the conventional control schemes of both systems, and summarizes recent developments in adaptive control of machine tools and robots.

scholarly journals The Use of Response Surface Methodology to Optimize Parameter Adjustments in CNC Machine Tools

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Shao-Hsien Chen ◽  
Wern-Dare Jehng ◽  
Yen-Sheng Chen
Keyword(s):  
Regression Analysis ◽  
Response Surface ◽  
Machine Tools ◽  
Cnc Machine Tools ◽  
Contour Plot ◽  
Machining Accuracy ◽  
Analysis Method ◽  
Cnc Machine ◽  
Acceleration And Deceleration ◽  
Feed Axis

This paper mainly covers a research intended to improve the circular accuracy of CNC machine tools and the adjustment and analysis of the main controller parameters applied to improve accuracy. In this study, controller analysis software was used to detect the adjustment status of the servo parameters of the feed axis. According to the FANUC parameter manual, the parameter address, frequency, response measurements, and the one-fourth corner acceleration and deceleration measurements of the machine tools were adjusted. The experimental design (DOE) was adopted in this study for taking circular measurements and engaging in the planning and selection of important parameter data. The Minitab R15 software was adopted to predict the experimental data analysis, while the seminormal probability map, Plato, and analysis of variance (ANOVA) were adopted to determine the impacts of the significant parameter factors and the interactions among them. Additionally, based on the response surface map and contour plot, the optimal values were obtained. In addition, comparison and verification were conducted through the Taguchi method, regression analysis to improved machining accuracy and efficiency. The unadjusted error was 7.8 μm; through the regression analysis method, the error was 5.8 μm and through the Taguchi analysis method, the error was 6.4 μm.

scholarly journals Industrial Robot Positioning Performance Measured on Inclined and Parallel Planes by Double Ballbar

2021 ◽  
Vol 11 (4) ◽  
pp. 1777
Author(s):  
Ivan Kuric ◽  
Vladimír Tlach ◽  
Milan Sága ◽  
Miroslav Císar ◽  
Ivan Zajačko
Keyword(s):  
Machine Tools ◽  
Industrial Robot ◽  
Industrial Robots ◽  
Cnc Machine Tools ◽  
Circular Path ◽  
Robot Arm ◽  
Cnc Machine ◽  
Positional Analysis ◽  
Polar Graph ◽  
Robot Positioning

Renishaw Ballbar QC20–W is primarily intended for diagnostics of CNC machine tools, but it is also used in connection with industrial robots. In the case of standard measurement, when the measuring plane is parallel to the robot base, not all robot joints move. The purpose of the experiments of the present article was to verify the hypothesis of the motion of all the robot joints when the desired circular path is placed on an inclined plane. In the first part of the conducted experiments is established hypothesis is confirmed, through positional analysis on a simulation model of the robot. They are then carried out practical measurements being evaluated the influence of individual robot joints to deform the circular path, shown as a polar graph. As a result, it is found that in the case of the robot used, changing the configuration of the robot arm has the greatest effect on changing the shape of the polar graph.

scholarly journals Primary deviations geometrical parameters multilink mechanical systems industrial robots and CNC machine tools.

2014 ◽  
Vol 2014 (4) ◽  
pp. 46-51
Author(s):  
Олег Крахмалев ◽  
Oleg Krakhmalev
Keyword(s):  
Machine Tools ◽  
Mechanical Systems ◽  
Industrial Robots ◽  
Cnc Machine Tools ◽  
Geometrical Parameters ◽  
Cnc Machine

The construction of a model of the deviations of geometrical parameters of the links mechanisms of industrial robots and CNC machine tools.

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