一、概况我厂生产的磨床台面手摇机构中常用的齿条,(普通型平面磨和内、外圆磨床均有一套手摇台面机构,由机械齿轮、齿条使工作台作纵向移动。)其齿条截面尺寸,主要有三种规格:18×30毫米、18×60毫米、18×85毫米(厚×宽),以前采取的工艺路线,用热轧45扁钢经割料,正火,龙刨刨四个面(见图1),车齿,铣两个端面,钻孔平括。采用这种热轧扁钢料切 First, the general situation I plant grinder commonly used hand-crank rack, (ordinary type and internal and external grinder have a hand-crank mechanism, the mechanical gear, rack make the table for longitudinal movement. ) The rack section size, there are three main specifications: 18 × 30 mm, 18 × 60 mm, 18 × 85 mm (thickness × width), the process before the adoption of hot-rolled 45 flat steel by cutting, normalizing , Four plane dragon planing plane (see Figure 1), car teeth, milling two facets, drilling flat. Using this hot-rolled flat steel material cut