Establishment and Realization of Intelligent Integrated Grinding and Measuring Workcell for Blade Edges

摘要

In the aeronautical engineering, leading and trailing edges are the most important parts of a blade surface, whose machining accuracy and shape conformity may exert a crucial influence on the aerodynamic property of the whole blade. Therefore, it urgently needs to execute the manufacturing of blade edges in the manner of high precision, efficiency and consistency, The purpose of this research is to study and establish an intelligent integrated grinding and measuring workcell for blade edges, which could be utilized to derive the desired blade edges so as to serve as a major solution for the final process of those precision-forged blade edges. Based on the design concept of intelligent manufacturing, the workcell contains such subsystems as on-line measuring subsystem, industrial robot subsystem, flexible grinding subsystem, loading/unloading subsystem and intelligent expert subsystem etc. In the actual application, the blade edges are rapidly measured by the on-line measuring subsystem to establish the removal allowance model firstly. And then, under the coordination and control of the intelligent expert subsystem, the industrial robot subsystem holds the blade and executes the grinding motion and station transfer. Finally, the blade edges are ginded adaptively on the flexible grinding subsystem. As a result, the automatic manufacturing process of "measuring-grinding-measuring" of blade edges is realized, which shows the intelligence of the manufacturing workcell obviously. Also, the grinding and measuring process of blade edges are executed on the system to verify its precision and feasibility. As the experimental results show, the precision and efficiency of the system can meet the requirements of the modern production of blades, which manifests the huge practical significance and application value of the system.