基于NX平台的注射模随形冷却水道生成方法研究  

A method of conformal cooling channel generation in injection mould based on NX platform

作　　者：王乾[1] 侯斌魁[1] 黄志高[1] 张云[1] 

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《模具工业》2017年第8期35-41,47,共8页Die & Mould Industry

基　　金：广东省产学研合作项目(2014B090901062)

摘　　要：针对某些特殊零件传统冷却水道冷却效果不明显的问题,提出采用随形冷却水道冷却的方案。为了提高随形冷却水道的设计及制造效率,在NX平台上以零件轮廓截面为基础,利用小波光顺算法和最小二乘拟合算法,提出一种双螺旋随形冷却水道生成方法。其过程为:首先生成零件指定区域的等距离截面集合,然后偏置截面,最后在相邻层的截面上生成双螺旋水道中心线并优化。以汽车零件的随形冷却水道生成为例,验证该方法实用且有效。According to the cooling was not obvious in some special parts of the traditional cooling channel, the CCC eooling scheme was proposed. In order to improve the design and manufacture efficiency of CCC, a method of double helix CCC generating was present- ed by using the wavelet fairing algorithm and the least squares fitting algorithm based on the contour section of the parts on NX platform. Firstly generate a set of equidistant sec- tions of the specified area. Secondly offset the sections. Finally generate and optimize the double helical cooling centerline in the cross section of the adjacent layer. Taking the gen- eration of CCC for the automobile parts as an example, the results verified the method was functional and practical.

关 键 词：注射模 冷却系统 随形冷却水道 拟合 小波分解 光顺 

分 类 号：TG76[金属学及工艺—刀具与模具] TP391[自动化与计算机技术—计算机应用技术]