型材下料的切断模有单刃和双刃切断模。采用单刃切断模,坯料的精度较差。对精度要求较高的零部件,单刃切断模很难满足要求。采用双刃切断模可以提高坯料的精度,但由于型材截面形状、大小不同,所需下料毛坯的长度也不同,所以往往一种截面或一种长度就需要一副切断模。为节省模具及费用,我们设计了一种如图所示的多用型材切断模。 Profile cutting the cutting mold with single-edged and double-edged cutting die. The use of single-blade cutting die, the accuracy of the blank is poor. For precision parts, single-edged cutting die is difficult to meet the requirements. The use of double-edged cutting die can improve the accuracy of the blank, but because of cross-sectional shape and size of the blank, the length of the blanks required are different, so often a cross-section or a length of the need for a split die. To save molds and costs, we designed a multi-purpose profile cutting die as shown.