在大量生产中,应用高生产率的夹具,可以降低产品成本和保证产品质量。现在介绍一种镗精密同心孔的双头夹具,供同志们参考:(一)工件要求工件是立达式精纺织中的主要零件之一——锭胆壳,镗孔的主要部分是(?)18_(-0.012)~(+0.015)×10.5公厘和(?)9_(-0)~(+0.022)×16公厘深的双头同心孔。这两个孔的同心度偏差应保持在0.025公厘以内。 In mass production, applying high productivity fixtures can reduce product costs and ensure product quality. Now introduce a double-head precision boring jig fixture for comrades reference: (A) the workpiece requirements The workpiece is one of the main parts Rieter worsted - spindle casing, the main part of the boring is (? ) 18 _ (- 0.012) ~ (+0.015) × 10.5 mm and (?) 9 _ (- 0) ~ (+0.022) × 16 mm deep double-headed concentric holes. Concentricity deviation between the two holes should be maintained within 0.025 mm.