关键词: 加工中心, 在线检测, 复合式检测, 检测定位, 计算机辅助设计

Abstract: The traditional on-line contact inspection method was characterized by single mode and low efficiency and it was difficult to realize fast and automatic inspecting localization for workpiece with complex feature structure.Aiming at these problems,an innovative on-line composite design scheme for machining center was presented.According to the principles of non-contact and contact inspection,a composite inspecting equipment was designed,which could be integrated in the machining library.Furthermore,by extracting non-contract features of inspecting data and matching with Computer Aided Design (CAD) of workpiece,the automatic inspecting localization for workpiece was implemented.Based on the proposed composite inspecting process,different inspecting modes were employed to satisfy the inspecting accuracy demands for different features of workpiece,which significantly improved the on-line inspecting efficiency.Taking the three-hole workpiece as a composite inspecting example,satisfactory inspecting results for different features of workpiece were provided.Results showed that the design plan of composite inspection was valid and feasible.

Key words: machining center, online inspection, composite inspection, inspection localization, computer aided design