摘要
先对模具型芯的结构进行分析,并区分型芯上的成型面、分型面、流道、推杆孔、斜顶孔、定位凸台等结构,为了设计合理的刀路,将推杆孔、斜顶孔等不需要用数控铣床切削的孔位封堵。根据型芯的结构,先用“型腔铣”命令编写粗加工刀路,再用“剩余铣”命令编写残余刀路,然后用“等高铣”命令编写半精加工刀路。在编写粗加工和半精加工刀路时,可以将各种结构合在一起编程,但在编写精加工刀路时,应针对不同的结构编写不同的精加工刀路:对曲面编写平行铣刀路;对斜面编写等高切削刀路;对根部小圆角编写清根刀路;对流道用成形刀按外形刀路往复切削。
The structure of the mould core was analyzed first,and distinguished moulding surface,parting level,flow channel,ejector pin hole,inclined ejector hole,positioning convex.In order to design a reasonable cutting path,the ejector pin hole,inclined ejector hole and other holes that do not need to be cut by CNC milling machine were blocked.According to the core structure,the rough cutting path was written by cavity milling command,the residual cutting path was written by residual milling command,and the semi-finishing command was written by equi-height milling command.When writing roughing and semi-finishing cutting paths,various structures could be mixed together to program,but when writing finishing cutting paths,different finishing cutting paths should be written for different structures.For surfaces,parallel milling paths should be writ-ten,for bevel surface,equal height cutting tool path should be written,for the small round corner of the root,root cleaning tool path should be written,for the flow path,the forming tool to cut re-ciprocally according to the contour path was used.
作者
苏吉阳
SU Jiyang(Xiamen Technician College,Xiamen 361100,China)
出处
《模具工业》
2024年第9期57-61,共5页
Die & Mould Industry
关键词
塑料模
型芯
UG
数控铣编程
粗加工
精加工
plastic mould
core
UG
NC milling programming
roughing
finishing
