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用冲模加工密如网状的电机端罩通风孔,是比较困难的,电机通风孔是由数十排8×8mm的方孔组成,孔之间相隔宽度只有2mm,模具孔的累积误差要求小于±0.05mm,如何设计,制造此类模具,我们在实践中成功地解决了这一难题,现介绍如下。一、模具的设计电机罩方孔冲模见图1,对于网状的方孔,用冲模加工,其凹模的排样或加工方式有多种,根据我们厂的加工设备,技术条件,所设计的凹模方孔排样见图2。
It is more difficult to process densely-shaped motor end cover vents with a die. The motor vents are composed of dozens of rows of square 8 × 8 mm square holes with a width of only 2 mm. The cumulative error of the die holes is less than ± 0.05mm, how to design and manufacture such mold, we have successfully solved this problem in practice, are introduced as follows. First, the mold design Motor cover square hole punch shown in Figure 1, for the mesh square hole, the use of die processing, the die of the nesting or processing methods have a variety, according to our factory processing equipment, technical conditions, the design See Figure 2 for the female square hole pattern.