HOLE-SHAPE MEASURING APPARATUS AND HOLE-SHAPE MEASURING METHOD

摘要

A hole-shape measuring apparatus is provided with a hole-diameter measuring mechanism for measuring the diameter of a hole for a flat-head bolt, and a head-height measuring mechanism for measuring head height. The hole-diameter measuring mechanism has: a hole-diameter measuring rod configured in a manner such that the tip section thereof is inserted into a fixed part, and displacement occurs according to the diameter of the fixed part; and a hole-diameter measuring sensor for measuring the displacement by the hole-diameter measuring rod. The head-height measuring mechanism has: a head-height measuring rod configured in a manner such that the tip section thereof is inserted into a head part, and displacement occurs according to the head height; and a head-height measuring sensor for measuring the displacement by the head-height measuring rod. The hole-diameter measuring rod and the head-height measuring rod are positioned along the same axis.