| 摘要 |
PURPOSE:To measure the inside diameter completely automatically, by inserting a contact provided on the tip of a fixed arm and a moving arm into a measuring hole of an object to be inspected by the movement of an object placing plate, and measuring the inside diameter by a moving extent of the moving arm. CONSTITUTION:A moving arm 7 is placed so as to be opposed to a fixed arm 5 of a supporting base 2, and to their tips, contacts 6, 10 are fitted. The arm is energized to the right by a weight 13, etc., but usually the contacts 6, 10 are made to press-contact with it by a piston rod 18. An object placing plate 22 in the center is provided so that it can be moved up and down, and in the X axis and Y axis directions by a prescribed mechanism. When executing the measurement, an object to be measured 15 is supplied to the object placing plate 22, and after that, it is moved, the contacts 6, 10 are inserted into the inside of a hole, the arm 7 is moved to the right by reduction of the rod 18, and the contacts 6, 10 are made to press-contact with the inside. The moving extent of the arm 7 is detected by a detector 8 and the inside diameter is measured. Therefore, the operation from setting to measurement can be executed automatically by a control device. |
