What does the PCB industry run out test mean? What are the test methods and functions?
The test is the main performance of the spindle drilling machine detection, its process capability, simple, dynamic test rotor spindle swing (Center), test method, to the use of the RUN-OUT instrument, the standard PIN into the spindle, the spindle speed open, into the RUN-OUT instrument, it will display the speed the value of RUN-OUT, the general control in the 10um, but when the 90 thousand turn around, the spindle has a resonance point, there will be the phenomenon of high! More than this value will need to replace or repair the spindle chuck!
The dynamic accuracy is less than 40um, and the drilling deviation of the drill head is tested when drilling
RUN out measurement refers to the measurement of spindle deflection, check the spindle at each of the speed generated by the pendulum is too large, the general production of the spindle placed in less than 10 preferred! The test method is very simple, first remove the spindle foot into standard PIN in the spindle, dynamic RUN OUT machine is placed on the bed every axis at the origin, in the RUN OUT on the back of a positioning tenon and table positioning, will reduce the spindle height to standard PIN RUN OUT insertion hole (testing machine don't insert too deep or plug), open the main shaft fixed number of crooked idling, see RUN OUT display data!
