Optimization Research And Application Of Feed Speed In Five-axis Machining

In recent years, our five-axis CNC machining center is constantly increasing, and is based on the efficiency of NC programming software of its major three-dimensional programming speed, the major manufacturers began to use intelligent CNC machining techniques to process some of the impeller blades and other parts of complex surfaces to efficiently solve the low productivity and poor accuracy of the workpiece. Because the manufacturer according to their own conditions issues, capital, plant size, etc., there is a difference of five-axis CNC machining center purchased its structural dimensions, knives, rotary table mode, the machine nationality, etc., and these machines are equipped with different national production CNC system, and then use a variety of different CAM software for CNC programming, making the five-axis CNC programming technology, there are many problems, and among the most critical technical issues exist between different three-dimensional structure of different software and CNC machine tools a link from a certain role for five-axis CNC machine tools based on certain dimensional CAM software dedicated post-processor. How to make the five-axis CNC machining technology to play its absolute advantage in the manufacturing field, to solve their machine NC post-processing software development is imminent, and one for the five-axis machine tools, machine tool structure exercise is the key to solving the motion axis. Because of the multidimensional space sports practice tool and the workpiece, there are currently the major commercial post-processing software out of the NC code defects directly using this NC code, the accuracy and efficiency of the workpiece during machining of the issues that may affect. For commercial fully opaque nature of post-processing software, for advanced language JAVA Based on the major CAM software pre-processing documents out of the APT NC transcoding preparation, and this is not on the zero offset NC code, dynamic speed, 3D non-linear error compensation and machine tool error compensation control, badly in need of a suitable control algorithm on these issues, which is the usefulness of this thesis, which directly increased the five-axis machine tool post-processing software development.Based on the above post-processing problems in a paper(A-C) double turret axis CNC machining centers for the study, based on three-dimensional CAM software, using JAVA to write a five-axis machine tool post-processing software. First, the article analyzes the common characteristics of three-dimensional software source files cutter and impeller three-dimensional model based CAM software tool bit source files were extracted. Then for the structural characteristics VMC850 F axis CNC machining centers, which coordinate conversion tool to establish the mathematical model and a mathematical model for the zero offset, the dynamic speed, non-linear error compensation and other issues as well as 3D tool, out through the rear NC code and Matlab data map for nonlinearity error is verified. Based on three-dimensional software tool bit source files, use the advanced language JAVA axis post-processing software, which can not only convert the NC code, but also on a zero offset, the dynamic speed, non-linear error compensation and other issues as well as 3D tool were resolved, the software has also established a database of five-axis machine tool post-processing parameters. Finally complex surface parts- triage impeller toolpath planning, and use thereafter-processing software for post-processing, through Vericut simulation software to simulate the processing and VMC850 axis CNC machining centers actual processing, from the actual impeller parts Since then processed successfully verified the effectiveness of set-processing software.