本厂在试验新产品时,遇到一薄壁、大径、长孔零件(见图1),曾因钻头参数没选好,影响生产。工人们按标准型麻花钻结构要求刃磨的钻头,只能加工十来个工件就出现侧刃烧伤、变形,甚至毁坏等现象。针对上述问题,进行了改革,刃磨出“三槽、四刃面顶形钻头”(图2),效果很好,每刃磨一次可加工三百个左右零件;工效高、出屑好,能保证质量。 When testing new products, the factory encountered a thin-walled, large diameter, long hole parts (see Figure 1), had not selected the bit parameters, affecting production. Workers according to the standard twist drill structure requires grinding bit, only to process 10 pieces of the workpiece appears side burn, deformation, and even destroyed the phenomenon. In response to the above problems, the reform has been carried out to sharpen the “three-slot, four-blade top bit” (Figure 2) with good results. Each mill can process about 300 parts at a time. To ensure quality.