有时工件上的孔距很近,无法在钻模体上安置标准导套,现介绍下面几种近距离孔之钻模设计的简便方法,以供参考。 1.削边导套:如图1所示,把标准导套之两边磨平而装入钻模体内。图1中(a)不宜太薄,一般均为≥2.5公厘。 2.插销式回转导套:孔间较近而图1之a又在2.5公厘以下者,则采用图 Sometimes the hole spacing on the workpiece is very close, can not be placed on the mandrel body standard guide sleeve, are introduced below several short hole drill mode design for easy reference. 1. Cut edge guide sleeve: As shown in Figure 1, the standard guide sleeve polished on both sides and into the drill body. Figure 1 (a) should not be too thin, are generally ≥ 2.5 mm. 2. Pin-type Slewing Rings: Close to the hole between Figure 1 a and 2.5 mm below, the use of Figure