面向刀具序列的模具型腔高效加工策略

High performance strategy for die cavity machining oriented to tool sequence

为了实现模具型腔的高效加工,提出了一种面向刀具序列的模具型腔高效加工策略。在该策略中,刀具选用圆弧角铣刀和球头刀。按照优先选用圆弧角铣刀和大直径刀具的原则,根据建立的最大可行刀具数字化加工几何模型,确定了刀具序列中每把刀所对应的加工区域和实际加工中每把刀只切除所对应的加工区域。应用该策略可以避免加工特征的识别,同时克服了高速加工刀具刚性差的缺点。验证了加工策略,证明该加工策略对模具型腔的高效加工具有较高的实用价值。

To realize highly effective machining for die cavity, a relevant superior strategy oriented to tool sequence was proposed in which an ordered series of toroidal cutters and ball cutters sorted by diameter size were optimally selected. Based on the established machining geometry model grounded on the largest access tool, individual cutting areas pertinent to each cutter were consequently calculated, and each cutter only dealt with its corresponding area in practice. Using this proposed strategy, the machining feature recognition during machining process could be avoided and the poor rigidity of cutter used in high speed machining could also be overcome. Combining with an illustrative example, the advanced machining strategy further proved to be effective for highly effective machining of die cavity.