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图示钻模可确保矩形条料制件上的孔位总是保持在制件宽度的对称线上,而不管其宽度尺寸的变化。尽管其这种变化不是无限的,但它的变化范围,却也足够一般制件的用途了。比如本文所示的钻模,就曾用于宽度尺寸为16～22mm 的制件,而获得了满意的效果。该钻模由一块底座、一块钻模板、一副钻套、两个固紧螺钉和三个定位销组成。定位销2、4与钻套3的布置,一定要在一条中心线上,且2、4的中心一定要在距离钻
The illustrated drill ensures that the holes in the rectangular strip of material always remain symmetrical about the width of the part, regardless of changes in its width. Although this change is not unlimited, its scope of change is sufficient for the use of general parts. Such as the model shown in this article, once used for the width of 16 ~ 22mm parts, and obtained satisfactory results. The die consists of a base, a drilling template, a drill sleeve, two fastening screws and three positioning pins. Positioning pin 2,4 and 3 sets of drilling, must be in a centerline, and the center of 2,4 must be in the distance from the drill