基于Pro/E (Pro/ENGINEER)的二次开发平台,以煤炭系统常用的胎体式内凹型PDC钻头为例,在系统分析钻头结构特点和主要参数相关性的基础上,建立了钻头结构设计各参数相关性技术体系实体参数化设计模型.通过设计Ф65 mm胎体式内凹PDC钻头,验证了该模型能够快速、准确地利用参数变化完成钻头体的三维及二维结构图设计,从而大大提高了设计效率和质量,为钻头参数化设计提供了参考.%With the development and spreading of computer-aided design (CAD) technology, it is the trend to use three-dimensional design software for parameter design. Based on Pro / E (Pro/ENGINEER) strong secondary development platform, with the matrix concave PDC bits commonly used in the coal industry as example, on the basis of systematically analysis of the correlation of structural features and main parameters of concave bits, the paper has established technology system of the related parameters for structural design of bits. Design model of PDC bits was set up by using the relationship of Pro/E, parameters and program modules. The design was carried out by using Φ65 mm matrix PDC bits as real example. The results showed that the developed model can quickly and accurately draw three-dimensional and two-dimensional structural diagrams of bits, not only standardizing the designing flowchart, but also improving the quality and efficiency as well as reducing the error of drawings.
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