通过压力角α与传动角γ的概念阐述了如何确定平面低副四杆机构中死点位置的新方法,以及死点和止点的区别。运用此方法能够简便快速地找到平面低副四杆机构的死点位置,并且便于计算机编程,较好地保证了机构的运动精度和传动质量要求,具有较强的实用性。 Through the concept of pressure angle α and transmission angle γ, a new method of how to determine the position of dead center in the plane low secondary four-bar linkage mechanism and the difference between dead point and dead center are described. Using this method, the dead center position of the low profile four-bar mechanism can be found easily and quickly, and it is convenient for computer programming to ensure the precision and transmission quality of the mechanism well, which is of great practicability.