Abstract
Ultraprecision machining is required in many advanced fields. To create precise parts for realizing their high performance, the whole machining process is usually conducted on the same ultraprecision machine tool to avoid setting errors by reducing setting operations. However, feed rate is relatively slow and machining efficiency is not so high compared to ordinary machine tools. Thus, the study aims to develop an efficient ultraprecision machining system including an industrial robot to avoid manual setting and to automate the setting operations. In this system, ultraprecision machining is conducted for the workpiece having a shape near the target shape, which is beforehand prepared by ordinary machine tools and is located on the machine table by means of an industrial robot. Since the setting errors of the roughly machined workpiece deteriorate machining accuracy, the differences from the ideal position and attitude are detected with a contact type of on-machine measurement device. Numerical control (NC) data is finally modified to compensate the identified workpiece setting errors to machine the target shape on an ultraprecision machine tool. From the experimental results, it is confirmed that the proposed system has the possibility to reduce time required in ultraprecision machining to create precise parts with high efficiency.
Highlights
Recent years, a functional surface with microstructure has been applied in many advanced fields such as optics, electronics, information technology, and biomedicine [1,2].In order to realize their high performance of these surface functions, the requirement of fabrication becomes stricter with the surface roughness and form-accuracy in nanometerorder [3,4]
Ultraprecision machining is conducted for the workpiece having a shape near the target shape, which is prepared beforehand by ordinary machine tools to reduce the machined volume of ultraprecision machining and to improve the machining efficiency
To detect the actual position and attitude of workpiece on ultraprecision machine To detect the actual position and attitude of workpiece on ultraprecision machine tool, a reference of workpiece is necessary for the usage of an on-machine measurement tool, a reference of workpiece is necessary for the usage of an on-machine measurement device
Summary
A functional surface with microstructure has been applied in many advanced fields such as optics, electronics, information technology, and biomedicine [1,2]. Ultraprecision machine tools have been developed to realize high positional accuracy and resolution, it is very difficult to create parts with the nanometric accuracy due to many slight errors such as machine tool configuration, tool contour, and setting operation. These errors must be clearly detected and completely compensated. Ultraprecision machining is conducted for the workpiece having a shape near the target shape, which is prepared beforehand by ordinary machine tools to reduce the machined volume of ultraprecision machining and to improve the machining efficiency This workpiece is located on the machine table by means of an industrial robot. It is confirmed that the proposed system has the possibility to reduce time required in ultraprecision machining to create precise parts with high efficiency
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
