| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball dimension gauge device easy to alter for use as either of two measuring instruments, that is, a contact-type three-dimensional coordinate measuring instrument and a noncontact-type three-dimensional coordinate measuring instrument, holding spherical bodies in such a manner that stress effect hardly acts thereon from the gauge body side, and having dimensional stability enhanced by preventing to the utmost such a situation that standard values change due to vibration or impact and also in time of alteration between a use as the contact-type three-dimensional coordinate measuring instrument and a use as the non-contact-type three-dimensional coordinate measuring instrument. SOLUTION: This ball dimension gauge device includes the gauge body 1 placed on a surface table of a three-dimensional coordinate measuring instrument and the plurality of spherical bodies G held on the gauge body 1. The spherical bodies G are formed out of magnetic material. The gauge device includes two kinds of spherical bodies G as the spherical bodies G, that is, contact-type spherical bodies G(a) used in the contact-type three-dimensional coordinate measuring instrument and noncontact-type spherical bodies G(b) used in the noncontact-type three-dimensional coordinate measuring instrument. To the gauge body 1, holding bodies 10 are annexed for magnetically holding any spherical bodies selected from among the contact-type and noncontact-type spherical bodies, each formed so as to have a permanent magnet. COPYRIGHT: (C)2008,JPO&INPIT
|
