论文部分内容阅读
针对螺旋类线材的推弯成形,提出了一种数控代码自动生成方法,并以曲线模型相对复杂的等节距圆锥螺旋弹簧为例进行着重阐述。该方法通过提取线材几何建模参数,并结合推弯模具的结构尺寸和运动形式,建立线材推弯成形的数学模型,推导出送料轴、推弯轴和转臂轴三轴间的联动关系,最后采用等间距直线逼近法生成线材零件的数控加工代码并进行加工生产。试验证明,该方法编程效率高,修改方便,且加工零件可以满足精度要求。
Aiming at the curve forming of helical wire, a method of automatic generation of numerical control code is proposed. The case of constant pitch pitch helical cone with complicated curve model is taken as an example. In this method, the mathematical model of wire bending forming is established by extracting geometric modeling parameters of wire rod and combining with the structural dimensions and motion forms of the bending die. The interaction between the feeding axis, the bending axis and the triaxial axis of the pivoting arm is deduced. Finally, the use of equal-pitch linear approximation method to generate wire parts CNC machining code and processing. The experiment proves that this method has the advantages of high programming efficiency, easy modification, and machining parts can meet the precision requirements.