Five coordinates based on ultrasonic spindle gantry CNC milling machine

Based on ultrasonic spindle five coordinate gantry CNC milling machine reform - 2018 10 - 16 a, equipment reform outline 5 a3p machine tool is an aircraft factory in the 1990 s from the United States Cincinnati company introduces a high-speed five-axis milling planer. The original machine has six servo axis, a main shaft ( Electric spindle) , including gantry for double motor drive. Because the machine service life long, electrical components and CNC system serious aging, the machine tool reliability is reduced, frequent accident, can't normal use. In order to better and make full use of machine tools, exert the efficiency of the machine tool, according to the requirements of manufacturer, at the same time of upgrading of nc machine tools, increase ultrasonic spindle cutting function, to complete the paper honeycomb core material of various surface treatment, and development and ultrasonic spindle machining on CNC system corresponding system software, complete the pointed straight knife and circular knife two automatic measurement of different kinds of knives, switch, and real-time control. Second, the expanded function after transforming the function in the original machine, on the basis of the increase in the following functions: 1, have a combination of motorized spindle and ultrasonic machine tool spindle two kinds of processing mode; 2, ultrasonic spindle meet round knife rotation speed control, and has the pointed straight knife Angle position control function, and has 6 axis linkage function. 3, a round knife, pointed straight knife function of length and Angle automatically on the edge of the sword; 4, numerical control system to satisfy the real-time condition monitoring of the ultrasonic spindle machining, ultrasonic machining process and can be easily for the parameter calibration. Three, the retrofit scheme 1, domestic HNC - central China 848 c/M CNC system to upgrade the electrical control system, realize the ultrasonic spindle machining required 6 axis linkage function. In the numerical control system, the installation of motorized spindle and ultrasonic spindle two sets of different processing mode of system software, by turning to select the required processing mode. Choosing a motorized spindle machining, all meet the original machine tool processing function; Choosing ultrasonic spindle machining, satisfy the ultrasonic spindle of paper honeycomb core material processing requirements, and has pointed straight or circular knife switch and control function of two kinds of cutting tools, namely pointed straight knife position control and circular knife rotation speed control. 2, through the numerical control system of the R232 communication port 485 communication agreement with ultrasonic generator, ultrasonic machining process indicators should be brought into the numerical control system. Through the numerical control system of ultrasonic start-stop, fault handling, frequency, amplitude, voltage, current, power, temperature, such as the real-time control, in order to achieve the best effect of processing. And through the secondary development of software system, adding ultrasonic machining on CNC system interface, used for ultrasonic generator condition monitoring and parameter calibration. 3, incorporate the straight knife Angle control of ultrasonic spindle system control servo axis, with the function of the processing of complex curved surface. 4, with laser sensor used for ultrasonic straight benchmark for knife or circular knife. The Angle of the straight knife knife, tool Angle identification is realized by using sensor output analog signals. Sensor output analog signal transmitted analog input sub module to the numerical control system, in need of knife, the system first to obtain the minimum simulation tool in the blade position value, namely the tool in the sensor light blocking the least position, again through the smallest analog quantity to determine the cutting tool edge position coordinates. The whole process of knife by macro program to complete for the knife, in the process, only need to input the corresponding cutting tool, the system will automatically complete the tool length and Angle of the benchmark for the knife, and automatically set in the system and compensation. Four, the conclusion is based on ultrasonic spindle of CNC machine tools transformation, is a new exploration, and ultrasonic spindle in the domestic numerical control system of the application of a breakthrough. We will keep tracking and to master the various operation conditions and information, the continuous improvement of equipment processing performance, the optimization of system parameters, the development of the machine tool manufacturing again to make new contributions. Author introduction: Duan Yucheng ( 1963. 11 - - ） , male, hubei xiantao people, undergraduate, researcher level senior engineer, research direction in the numerical control processing equipment. Source: 'China science and technology expo 2018, 14