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The Definition and Assessment of Bearing Part Form Error Based on GPS Standard

Author: XuHui
Tutor: LiJiShun
School: Henan University of Science and Technology
Course: Mechanical Manufacturing and Automation
Keywords: A new generation of GPS specification Bearing parts Shape error evaluation Fast geometric approximation algorithm
CLC: TH133.3
Type: Master's thesis
Year: 2011
Downloads: 53
Quote: 0
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Abstract


The shape of the error of the bearing parts bearing rotation accuracy important technical indicators . The first-generation GPS standard geometric definition of the product , there are many problems , can not meet the needs of the manufacturing sector , more scientific development and implementation of the new generation of GPS is imperative . Based on the next-generation GPS standard , bearing rotary body parts shape error as the main object of study , to explore the shape error description . Geometric characteristics of spatial straightness and cylindricity error , given the rapid geometric straightness and cylindricity evaluation approximation algorithm . The paper analyzes the basic definitions and theoretical framework of a new generation of GPS , and common bearings Rotary Parts norms based on a new generation of GPS standards . By contrast analysis, metrology based on the next - generation GPS standard to achieve a unified and standardized products throughout the production cycle , the configuration of the overall optimization of the resources of the entire production process , to provide a clear definition of geometric tolerances system , and thus help to improve product quality and reduce production costs. Papers fast geometry of the of spatial straightness and cylindricity error evaluation based on the next-generation GPS standard approximation algorithm and explores the solution process of the algorithm . Space straight line is in addition to the sphere outside the center of rotation of the rotary body parts and measurements assessed by reference elements of its space to determine the location and the error evaluation algorithm is a key issue that must be resolved in the shape error evaluation . Cylindrical its processing easy, relatively low processing costs , and has a relatively good overall performance , and widely used in the bearing roller and ferrule . Therefore, as an object of study selected spatial straightness and cylindricity . The comparison of the results given by the the algorithm assessment results and the coordinate measuring machine , proved that the algorithm can quickly and accurately solving spatial straightness and cylindricity error value . For of spatial straightness and cylindricity error evaluation provides a new practical algorithm , the algorithm principle to promote the assessment of the other shape error , error evaluation for other shapes provides a new way of thinking .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > Moving parts > Bearing
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