Research And Design Of Teaching Type CNC Engraving Machine And CNC System

CNC engraving machine plays an increasingly important role in the machinery, timber and other industries in terms of surface finish. The widespread use of CNC engraving machine makes professional CNC engraving substantial increase in demand for talent, but at this stage as a major force personnel training NC higher vocational colleges and universities, which are subject to ordinary human capacity training CNC engraving machine function is relatively simple, metal bed is difficult to observe the internal situation, expensive, complex maintenance and other issues, it makes a lot of higher education funding is not sufficient vocational schools unbearable. To solve this problem and make students can not only intuitive understanding of CNC engraving machine internal electrical components and principles of the movement, but also hands-on programming, operation of this engraving machine, machined parts model, developed for teaching needs transparent CNC engraving machine and numerical control system is very necessity. In this paper, the development of teaching CNC engraving machine feasibility and design ways of doing serious research. Firstly, an increase of CNC indexing approach can make CNC dividing head chuckcenter along the Cartesian coordinates X or Y axis, but also along the Z axis. This makes both CNC engraving machine engraving line, arc pattern on the plane, you can also head to the planar or cylindrical end face of the graphics processing, complete the ordinary CNC engraving machine extensions, extend the range of CNC training teaching. Studied the overall program design and development capabilities extend teachingand transparent CNC engraving machine to determine the mechanical drive components and complete major selection, clear to "PC+PCI-1750data acquisition and control card " model for hardware control section for analysis designed to determine the modular software development ideas, to design user-friendly software interface, complete the control circuit design and experimental platform made a successful experiment. The main analysis of CNC engraving machine CNC system design section. Meetsthe needs of this topic CNC system is developed programming structure and format, designed and developed corresponding program compiled modules. On the Windows platform using VC++6.0programming software, completed the program teaching the multifunctional CNC engraving machine CNC system software, complete linear interpolation, circular interpolation, linear and circular interpolation process integrated trajectory CNC software simulation of the preparation of the presentation. Studied the tool radius compensation function introduction, the main C functionanalysis tool compensation principle, linear, circular cutting edge radius compensation calculations.