Key Technology Research Of Six-axis Denture Engraving Machine Automatic Programming System

Denture engraving machine automatic programming system is an important part of the the entire denture engraving machine, Automatic programming system will directly affect the quality and efficiency of CNC machining. Therefore, automatic programming system development is one of the most important part of the the entire denture engraving system. Now denture carved automatic programming system’s core technology is still foreign monopoly, it’s expensive to introduce the foreign denture repair equipment. Therefore, we must develop automatic programming system with independent property rights of denture engraving.Automatic programming system typically includes the model file read and display, Mathematical processing to generate machining tool, Machining simulation,Generate CNC machining. Based on the existing six-axis denture engraving machine, research the composition of the automatic programming system and the realization method of each module. Developed its matching automatic programming system. The main contents are as follows:1.The establishment of the denture model and equidistant surface technology. In the denture engraving automatic programming system, Need to read or modify the denture model, the data of the repair teeth is need to get. This article describes several denture model scanning method and scanned point cloud data surface reconstruction. Study the surface equidistant technology, programming simple surfaces equidistant.2.Tool path planning and discrete data. After denture model reads, it must be processed to the cutter location data to meet the accuracy requirements. This paper introduces the commonly used method of tool path generation and data discrete method. Determined the tool path and data discrete method in accordance with the shape of the denture and processing requirements for denture processing.3. Multi-axis linkage algorithm of the denture engraving machine and error analysis are given. Determine the4-axis linkage algorithm of the Six-axis denture engraving machine according to the machine features. Give the motion amount calculation method for each axis. Analysis the processing errors in the process of machining. And the error calculating formula is given.4.The development of automatic programming system for den*ure engraving machine. Determine the main structure of the denture engraving automatic programming system, details of each functional module, Developed a simple automatic programming system of the denture engraving machine, Basically realized the the main function of the denture engraving machine include data file read, Mathematical calculations to generate machining tool point, NC machining simulation and post-processing to generate the processing code.