This paper stated the application of parallel link mechanism in modern machine tools , set up the error analysis as to parallel link mechanism in the virtucal - axis machine tool , derived the double triangular error equations of parallel link mechanicsm in its horizontal posture , analyzed the linearity and non - singularity of the error equations , thus giving the normal splution to the horizontal posture error . the error distribution law is simulated as to the center line in the workplace , and the error distribution curves are drawn as well
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