在机械加工生产中,经常迂到对板类零件如板形件、方块件、铰链螺钉和短轴零件(图1)钻孔,对于单件小批量生产,一般采用划线后钻孔。为了保证质量,提高工作效率,设计制造了如图2所示板类零件可调钻模,它满足了一部分板类零件的钻孔。工件在定位压板上定位,以前端支板定程,采用左右螺杆转动,带动前后活动钳口自 In machining, it is common practice to drill holes in plate-type parts such as plate, box, hinge, and short-axis parts (Figure 1). For single-lot small-batch production, scribing holes are generally used. In order to ensure the quality and improve work efficiency, design and manufacture of plate parts shown in Figure 2 adjustable drill, which meets the part of the board parts drilling. Positioning of the workpiece in the positioning plate to the front end of the plate stroke, the use of left and right screw rotation, the front and rear drive jaw