G70 XI00.YI20.R200.ZIS0.WI0.H55.B72.,where G70 is the name of the subpro- gram; X and Y are coordinates of measurement along the X and Y axes in the coordinate system of measurement; R is the plane of rapid feed of MH along axis Z in the coordinate system of measurement; Z is the coordinate of calculated measured surface position in the corrected coordinate system; W is the amount of possible deviation of the measured workpiece surface; H is the corrected coordinate system of the workpiece; B is the table position during mea- surement relative to its zero position.
The macrocommand for calling the subprogram for automatic basing on plane XOY along the hole is as follows:
The value of eSD on the rate of MH travel and time for interrogation of measuring gauges by the NC system (thls time can be taken as 8-16 msec).It follows from this that the maxi- mum rate of travel should be selected in the 5-8 mm/min range to ensure that the value of esp lies in the 1-2 Dm range.Certificate data from the zero-MH makers show that e m does
not exceed 1 m.During investigations,values of the errors e and esn were found to be higher than esp and e m by an order of magnitude.For instance,the positioning error of the machine IR-500 PMF4 as per certificate data is 0.015 mm,while esn fluctuates in the 0.01- 0.02 mm range.By accounting for the obtained data,the random component of error of zero- type MH eMH can be taken in the 0.02-0.025 mm range.
XI00 G70.YI20.R200.ZIS0.WI0.H55.B72.,那里的名称是G70 subpro -克;X和Y坐标的测量是沿X轴和Y轴坐标的测量系统中,R是飞机的快速饲料的MH轴线上的Z坐标系统的测量,计算Z是坐标的测量表面位置的坐标系统;W是纠正偏差的数量可能测量工件表面的改正;H坐标系,工件的位置;B表是在surement mea——相对于零的位置.
这macrocommand致电本子程序为自动基于飞机沿孔XOY如下:
可持续发展教育的价值率的MH旅行和时间讯问计量仪表的数控系统(thls时间可作为术msec).从这个,它遵循相应的速度-妈妈旅行应该被选择在5 - 8毫米/分钟范围,以确保专业英语(esp)的价值在于1 - 2 Dm范围.zero-MH制造商证书的数据表明,e m都是不一样的