Development of a Laser–Guided Deep–Hole Measuring System

Abstract

Until now, the autocollimation principle has been applied to the system to measure accuracies of a deep hole, and its accuracies have been evaluated. The measuring unit is installed in the front end of a laser–guided probe. The hole accuracies are measured by scanning the hole wall spirally. In this paper, using the basic experimental equipment that installs the jig with the measurement unit, both roundness and rotation angle of the main spindle are measured and discussed concerning measuring accuracies.