Research On Tire Mold CAD/CAM Technology Based On UG

Mold CAD/CAM technology is the base and important part of advanced manufacturing technology. It is developing to the direction of integration, network and intelligence. The title of this thesis is Research on Tire Mold CAD/CAM Technology Based on UG. First, the article simply presents the current status and development of mold CAD/CAM technology, then on the basis, choose UG of PC version as a platform, as per customer's 2D drawings, set up a 3D model of tire molds and generate NC programs for manufacturing, finally, analyze the manufacturing errors. All above work meet the requirement of the production. UG is a high-end software, which is the most advanced and integrated CAD/CAE/CAM software which object to the manufacturing industry. It has a powerful function in drafting, 3D modeling, mechanism analysis, manufacturing, photo and animation, verification etc. and has advanced development tools.Tire top and tread pattern are complicated 3D solids. Here in the thesis, by using Sketch and Revolve Body in Form feature of UG, an associated parameterized 3D model of tire top is set up. And by using of Extension, Swept of Free From Feature and UDF development function in UG, a precise 3D tread model is completed.The thesis analyzes the feature and method of different milling manufacturing type provided by UG and the process of generating NC programs. According to the feature of base model of tire molds and our CNC machines, choose Zig-Zag Surface to manufacture tire top and use Variable Contour manufacture tread grooves, create postprocessor files for different machines, customize operation templates and generate out 5 axes coordinates NC programs, and make verifications before engraving. Master models were manufactured on the 5 axes CNC machines. To improve the manufacturing precision, Error analysis in NC manufacturing is performed in the thesis, especially in 3 axis manufacturing. On this basis, an improving method is carried out which are useful in decreasing equipment investment and decreasing cost.