Scheme and measure of improving measure precision in die part processing
It improved the accuracy from the aspects of die blank scanning accuracy,the tempera-ture control of the die measurement room after processing,and the clamping support.Firstly,aim-ing at the mismatch between the laser scanning blank data and the programming data,a method was adopted to improve the blank pattern matching accuracy.The point cloud data of the scanned structure and profile were meshed,and the distance between the center and the point cloud data inside the unit was calculated by equipartition of the minimum outer envelope unit,and the mean d and standard deviation m were used for discrimination and processing.Secondly,the test room was set up the temperature and the constant temperature control scheme.Finally,in the die detec-tion support mode,the influence distribution of die weight on its deformation under different sup-port modes was obtained through simulation,and the measurement deformation error caused by its own weight could be eliminated to the greatest extent by compensation,which significantly im-proved the manufacturing accuracy of the mould.
NETL
NSTL
万方数据
维普
