采用气动技术驱动的送料机构代替传统的凸轮驱动间歇送料机构，在冲压机床中得到了广泛的应用。
To adopt pneumatic feeding mechanism to substitute traditional CAM intermittence drive feeding mechanism are widely applied in press machine.
凸轮机构控制巨型液压机分配阀芯时，在不同的升程阶段对凸轮理论工作曲线压力角有不同的要求。
During different lift range phases when a CAM controls the distribution spool of a giant hydraulic press, the CAM's requirement for the pressure Angle of its theoretical working profile is different.
某巨型水压机分配器的原有凸轮过渡曲线压力角过大，导套经常断裂。
The original profile of CAM in hydraulic press's distributor is not proper, its pressure Angle is excessive, so that the guide sleeve is broken.
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