| 摘要 |
PROBLEM TO BE SOLVED: To automatically proceed a rational grinding process by improving the matching technique for a body material 1d having a hole with a needle material 2d, and to secure the contra-positional relation between the body member and the needle member ground for matching. SOLUTION: An inner peripheral surface grinding mechanism 10 and an outer peripheral surface grinding mechanism 11 are totally controlled by a total automatic control device 12. Especially, a measurement value (an arrow (j)) by an inner diameter measurer 10c of the inner peripheral surface grinding mechanism 10 is input to the total automatic control device 12, and the total automatic control device 12 gives the dimension command signal (an arrow (k)) for grinding the periphery of the needle material 2d into a dimension matching with the described measurement value (j) to the outer peripheral surface grinding mechanism 11.
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