| Simulation for machining has attracted wide attention for its features of highlyintegrated and supporting for agile manufacturing. It turned into the hot spot of researchin technology circles and enterprise circles.As an effective way to solve the issue ofchangeable varieties,small quantities,complex shape,high accuracy in products,NCmachining may still have mistakes which will lend to machining failure. Therefor,It isvery meaningful to develop a simulation software to verify the NC code validity beforemachining and keep the data transmission stable.Based on the windows platform, the software was developed by using Visual C +6.0,OpenGL 3D graphics system and the principle of serial communication. Thefunctions of the software are including detection and editing of NC code, reading of theSTL model, the dynamic display of tool paths, the interference of numerical controlmachining and the transterof NC data. The details are as followed:1)A method of dynamic simulation for tool path was proposed base on OpenGL. Itallows users to do interactive such as rotate,pan,zoom and suspension which is usefulfor multi-directional observation process workpiece.2)The STL model was introduced as a processing object data model. First, theinterference between the workpiece and tool was generally judged by observing the mixedimage of the STL model and tool paths. Then, the exact interference was determinedthrough the comparison between the shortest distance from the processing tool to theworkpiece surface and the tool radius cutting tool.3)The function of serial communication was developed by using the CSerialPortclass. The intuitionistic and stable transfer for NC data was realized.
|
PDF Full Text Request