一马力风马达机体(以下简称机体)的四配气孔的中心线为四条空间一般位置直线,相互既不平行,也不垂直。因此,四配气孔的钻削成为机体加工工艺中的关键工序之一。有些单位采用“样机对刀”的办法,即将一成品机体画好腰线和端面十字线,在立铣(或万能铣)上,一端用分度头夹住,另一端用顶尖顶住, A horsepower motor body (hereinafter referred to as the body) of the four holes with the center line of the general location of four straight lines, neither parallel nor vertical. Therefore, the four-hole drilling has become one of the key processes in the machining process. Some units use the “prototype knife” approach, that is, a finished body draws a good waist line and the end of the cross line, in the vertical milling (or universal milling), one end of the indexing grip, the other end with a top to withstand,