کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
805297 905132 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new formulation of laser step diagonal measurement—Three-dimensional case
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
A new formulation of laser step diagonal measurement—Three-dimensional case
چکیده انگلیسی

To ensure the motion accuracy of a machine tool over its entire three-dimensional workspace, it is important to evaluate all the volumetric errors associated with three linear axes including three linear displacement errors, six straightness errors and three squareness errors. The laser step diagonal measurement modifies the diagonal displacement measurement, described in the standard ISO 230-6, by executing a diagonal as a sequence of single-axis motions. It has been claimed that the step diagonal test enables the identification of all the volumetric error components by using a linear laser interferometer only. This paper first shows that the conventional formulation of step diagonal measurements is potentially subject to a significant estimation error caused by setup errors in mirror and laser directions. We then propose a new formulation of laser step diagonal measurement, in order to accurately identify three-dimensional volumetric errors even under the existence of setup errors. The effectiveness of the modified identification scheme is experimentally investigated by an application example of three-dimensional laser step diagonal measurements to a high-precision vertical machining center.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precision Engineering - Volume 34, Issue 3, July 2010, Pages 516–525
نویسندگان
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