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12VE230ZC柴油机气缸体主轴承孔,在精镗孔后,按设计要求在各挡孔的径向两侧边修磨几丝(见图1)。以前此道工序是用风动砂轮手工修磨,效率低,表面粗糙度大,不能保证加工要求,为此设计了专用磨夹具,把风动磨头(见图2)安装在主轴承孔内。以件1上的φ205外圆及端面F与C向缺口定位,底座两侧缺口对准φ205孔一侧的齿形。各齿齿形用成形刀精刨加工,获得的位置度很准。然后用偏正轮压板压紧在主轴承孔端面上。加工时,转动件9,可沿件1上的导柱轴线作旋转运动和上下滑动,以使砂轮对孔的两侧分别磨出两曲面。磨头径向进给尺寸的控制由件11来调节,调整
12VE230ZC diesel engine main bearing hole in the cylinder bore, after fine boring, according to the design requirements in each radial hole on both sides of grinding a few wires (see Figure 1). Previously, this procedure was manually grinding with a pneumatic grinding wheel, which was inefficient and had a large surface roughness. Therefore, a special grinding fixture was designed and the pneumatic grinding head (see Figure 2) was installed in the main bearing hole . Piece 1 on the φ205 cylindrical and end face F and C to the notch positioning, notches on both sides of the base alignment φ205 side of the tooth profile. The shape of the teeth with a forming knife fine planing process, access to the location of a very accurate. Then use the positive wheel pressure plate pressed in the main bearing hole end face. During processing, the rotating member 9 can rotate along the axis of the guide column on the member 1 and slide up and down so that two sides of the hole are respectively polished by the grinding wheel by two curved surfaces. Grinding head radial feed size control by 11 to adjust