锻压技术

大螺旋角内螺纹铜管滚珠旋压工艺设计平台

英文标题：Design platform of ball spinning process for inner-screw copper tube with big helix angle

作者：孟艳敏刘劲松

分类号：TG335.7

出版年,卷(期):页码：2015,40(6):67-70

摘要：

大螺旋角内螺纹铜管滚珠旋压成形模具设计是一个复杂过程，目前还没有系统精确的计算方法。介绍了一种逆推法：根据螺纹管规格，从定径模开始，从后往前依次推算出钢球、滚压环、螺纹芯头、减径模、管坯等参数值，采用该方法建立成形工艺设计平台，进行大螺旋角内螺纹铜管的成形模具智能化设计。采用面向对象的程序设计方法，对Φ7 mm×0.24 mm×0.15 mm 规格的大螺旋角内螺纹铜管成形工艺进行设计，获得了成形模具及成形工艺参数。将获得的参数应用于实际生产，得到的成品内螺纹铜管件的齿形参数良好，没有齿形缺陷，符合产品技术要求。

It is a complicated ball spinning process to design the forming dies of inner-screw copper tube with big helix angle. At present there is no accurate calculation method for the system. A design platform of forming process was built and the intelligent design of the forming die was realized by an inverse method based on the standard of the inner-screw copper tube from the die with fixed diameter to deduce the reference data of ball diameter, rolling ring, thread core, reduce diameter die and tube billet. The forming process of inner-screw copper tube Φ7 mm×0.24 mm×0.15 mm with big helix angle was designed by object-oriented program design method, and the forming die and forming process parameters were obtained. The above optimized data were used in the production successfully to gain the good parameters of tooth shape tube without the tooth shape defect and meet its technical requirements.

基金项目：

国家自然科学基金资助项目(50474059)

孟艳敏(1967-),女,硕士,讲师,工程师

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