供氧面罩主体橡胶模主要零部件的制造

The Manufacture of Main Parts of the Rubber Mold for Oxygen Supply Mask

供氧面罩主体橡胶模主要零部件有凹模、中模和凸模,它们的形状均为复杂曲面,尺寸变化大且所形成的模腔间隙小。凹模和凸模的加工,均可以采用下料→刨→磨→镗→数铣→线切割→铣→钳工艺路线。除数铣需要按三维造型进行仿真加工之外,其它加工方法只要保证主要零部件平面间的垂直度和平行度即可。特殊的是中模,由于其整个形状除了具有一个较小的长方体之外,其余都是复杂的曲面。需要通过采用二类夹具完成对中模的定位和夹紧,在采用了模具相关零部件作为二类夹具后,才能运用中模三维造型在数铣上进行二次数铣工序完成对中模的加工。只有凹模、中模和凸模制造合格了,才能装配合格的橡胶模。

The main parts of the oxygen mask body rubber mold are punch, the middle mold and the punch, whose shape is a complex curved surface, the size change is big and the gap between the mold cavity is small. The machining of the punch and the punch can be used for cutting, planing, milling, boring, milling, wire cutting, milling, and clamp technique. Divisor milling machining simulation in 3D modeling and other processing methods as long as the guarantee between the main parts of the plane perpendicularity and parallelism can be. Special is the middle mold, because of its entire shape in addition to having a smaller rectangular body, the rest are complex surface. Needs through the use of two kinds of fixture on mold positioning and clamping, after the mold parts as a second type of fixture, can make use of the mold 3D modeling in the milling of quadratic milling process completed in mold processing. Only the punch, the middle mold and the punch are qualified to assemble the qualified rubber mould.