Protocol for machine tool volumetric verification using commercial laser tracker

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• 作者：Sergio Aguado ; Jorge Santolaria…
• 关键词：Laser tracker ; Volumetric verification ; Non ; geometrical errors ; Volumetric error ; Geometrical errors
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2014
• 出版时间：October 2014
• 年：2014
• 卷：75
• 期：1-4
• 页码：425-444
• 全文大小：5,453 KB
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• 作者单位：Sergio Aguado (1)
  Jorge Santolaria (1)
  David Samper (1)
  Juan José Aguilar (1)
  
  1. Design and Manufacturing Engineering Department, Universidad de Zaragoza, María de Luna, 3, 50018, Zaragoza, Spain
  
• ISSN：1433-3015

文摘

This paper presents a protocol as the preliminary phase of the volumetric verification of geometric errors in a real machine tool using a commercial laser tracker as the measurement system. The final error admissible in machine tool verification is defined as a range by the verification protocol presented in this paper. To obtain it, an independent study of the various sources of error that affect the machine tool’s accuracy was conducted. These errors are the tracking error, the repeatability error, the backlash of each axe, the heating time and the non-geometric errors of the machine. Furthermore, the thermal influence and errors from the measuring system are studied. For all of these errors, different calculation and measurement methods are used by performing a series of real tests on a three lineal-axis milling machine. In this paper, the different techniques that determine the errors of any machine tool are presented in a verification protocol. Depending on the influence of these sources of error obtained by applying the verification protocol to the volumetric error, the protocol determines the adequacy and scope of the volumetric verification process performed.