A device and method for automatically detecting the roundness and/or cylindricity of a sliding bearing

Abstract

The invention discloses a device and method for automatically detecting the roundness and / or cylindricity of a sliding bearing. The device comprises a horizontal movement device and a position adjustment device; the position adjustment device is provided with a rotary element which can be in insertion connection with the sliding bearing and can rotate; the horizontal movement device is provided with a sensor mounting seat which can move along the axial direction of the sliding bearing and is matched with the sliding bearing; the sensor mounting seat is provided with a centre determining devicefor determining the consistency of the center of the sensor mounting seat and the center of the sliding bearing; the sensor mounting seat is further provided with at least five displacement sensors;and a plane formed by three of the at least five displacement sensors is perpendicular to the axis direction of the sliding bearing, and the other two displacement sensors and two of the three displacement sensors are arranged side by side along the axial direction of the sliding bearing. With the device and method of the invention adopted, the machining precision of bearings of different sizes can be automatically detected, and the roundness and cylindricity of the bearings can be accurately calculated.

Description

technical field [0001] The invention relates to the field of component surface quality detection, in particular to a device and method for automatically detecting the roundness and / or cylindricity of a sliding bearing. Background technique [0002] Sliding bearings are the key basic components that support the rotation of the spindle through liquid, gas and other media. Under high-speed and high-precision working conditions, a small fit clearance is required to improve the running accuracy of the spindle. The machining error of the bearing directly affects the rotation accuracy of the spindle and the performance of the rotating equipment. [0003] The surface topography produced during the manufacturing process is a key factor in determining the machining quality of plain bearings. The key to the measurement accuracy is the circumferential sampling density and the axial sampling frequency. Due to the narrow space inside the sliding bearing, it is difficult to measure. Sta...

AI Technical Summary

Problems solved by technology

For bearings with high precision requirements, the calculation results of this method are not very accurate

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