我们设计一种新型夹具,用来加工青铜材料的薄壁腔体(见图1)。采用的是石蜡浇注法,使工件和夹具形成一个精加工刚体,图2是精加工外圆的夹具示意图;图3是精加工内孔的夹具示意图。具体步骤如下:首先将工件如图1进行粗加工,两端定位止口加工成如图所示。再把夹具和工件按要求装配好,竖起后,将已熔化的石蜡从一个孔中灌入,另一个孔为出气孔。快要灌满时,速度要慢,待两孔均溢出石蜡溶液时,等候片刻。冷却凝固后,再补灌一些,一直到 We designed a new type of fixture to process the thin-walled cavity of bronze (see Figure 1). Using a paraffin casting method, the workpiece and the fixture to form a finishing rigid body, Figure 2 is a schematic view of the finishing outer cylindrical fixture; Figure 3 is a schematic diagram of the fixture bore hole. Specific steps are as follows: First, the workpiece as shown in Figure 1 roughing, both ends of the positioning process as shown. Then the fixture and the workpiece assembly as required, after erection, melted paraffin poured from one hole, the other hole for the vent. About filling, the speed is slow, until both holes overflow the paraffin solution, waiting a moment. After cooling and solidification, recharge some, until