Revolution precision measuring device used for inner support type shafting and connected with hollow shafting

Abstract

The invention relates to a revolution precision measuring device used for an inner support type shafting and connected with a hollow shafting. The hollow shafting and a CCD autocollimator are included; the hollow shafting comprises a right bearing end cap, an angular contact bearing, a locking nut, an angle sensor, an outer framework, a platform body, a moment motor and a left bearing end cap; the right bearing end cap is connected with the revolution precision measuring device used for the inner support type shafting; and the revolution precision measuring device used for the inner support type shafting comprises a leveling support, one end of the support is provided with a flat mirror, the outside of the leveling support is provided with a groove, a socket head cap screw is arranged in the groove, the intermediate circumference of the leveling support is provided with four interlaced gaps so that the leveling support is elastic to certain extent, the socket head cap screw on the leveling support is adjusted to adjust the flat mirror so that the flat mirror is parallel with the CCD autocollimator, the other end of the leveling support is provided with an inner wedge-shaped sleeve, the inner wedge-shaped sleeve is in threaded connection with an outer wedge-shaped sleeve, and each of the outer and inner wedge-shaped sleeves is a thin-wall part in which a conical surface is included and four gap grooves are distributed uniformly in the circumference. The revolution precision measuring device is characterized by simple and compact structure, low cost and convenient operations, and especially suitable for the hollow shafting whose revolution precision is hard to measure.

Description

technical field [0001] The invention relates to an inner support type shaft system rotation precision measuring device connected with a hollow shaft system. Background technique [0002] The rotation accuracy of the hollow shaft system is mainly guaranteed by processing and assembly, but it is difficult to measure its specific indicators. At present, it is generally used to drill holes on the table body or the main shaft, and then fix the plane mirror on it. On the one hand, this method is not easy to operate. It is convenient and has a certain impact on the strength, stiffness and stability of the table body or the main shaft. On the other hand, the flat mirror cannot be adjusted, resulting in relatively high requirements for the installation accuracy of the flat mirror. The hollow shaft that cannot be drilled is not detected, mainly by assembly The experience and level of assembly of the technicians is guaranteed. Contents of the invention [0003] The object of the pre...

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Problems solved by technology

[0002] The rotation accuracy of the hollow shaft system is mainly guaranteed by processing and assembly, but it is difficult to measure its specific indicators. At present, it is generally used to drill holes on the table body or the main shaft, and then fix the plane mirror on it. On the one hand, this method is not easy to operate. It is convenient and has a certain impact on the strength, stiffness and stability of the table body or the main shaft. On the other hand, the flat mirror cannot be adjusted, resulting in relatively high requirements for the installation accuracy of the flat mirror. The hollow shaft that cannot be drilled is not detected, mainly by assembly Experience and assembly level guarantee of technicians

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