Screw element measuring device of the tube end, screw element and the measurement method screw element measurement system

摘要

The optical sensor 2, of the light leaked to the other side, by detecting the substantially parallel light to the thread groove A4, the first screw element is measured from the light source 21 to the tube axis. Also, by contacting the contact probe 31 of the contact sensor 3 to the thread flank surfaces A8, to detect the space coordinates of the contact probe 31 upon contact, the second screw element is measured. The second screw element and the detected first, respectively, and are synthesized by the processing means 4, screw element of the screw to be measured is calculated.