在立式铣床上,把立铣头转到一定角度,利用不同直径的立铣刀,可加工出不同直径的内半球形的零件。加工原理如图1所示。工件固定在可回转的转台上,作匀速运动。刀具由立铣头带动,进行切削。刀具和工件之间作相对旋转运动。当铣刀(立铣头)倾斜为α角度,需加工的内半球直径为2R时,可根据下式计算出该选用的铣刀直径(见图2)。sinα=d/2R,d=1.414R如果本单位没有这一规格的立铣刀,则只能选用 In the vertical milling machine, turn the milling head to a certain angle, the use of different diameters of the end mill, can be processed into different hemispherical diameter of the parts. Processing principle shown in Figure 1. The workpiece is fixed on a swivel turntable for uniform movement. Cutting tool driven by the vertical milling, cutting. Relative rotation between the tool and the workpiece. When the milling cutter (milling head) is tilted at angle α and the diameter of the inner hemisphere to be machined is 2R, the diameter of the milling cutter to be used can be calculated according to the following formula (see Fig. 2). sinα = d / 2R, d = 1.414R If this unit does not have the end mill of this specification, you can only use