六连杆机构在机械压力机中应用很广,按结构特点可分为二类: 1.双曲柄型; 2.曲柄摇杆型。图1为双曲柄型六连杆机构。当主动曲柄R作等角速旋转时,通过连杆A使从动曲柄R′作变速运动。滑块位移方向线一般通过主动曲柄和从动曲柄旋转中心的连线D,与滑块连接的主连杆E与从动曲柄R′的C杆相连接。合理 Six-bar linkage in the mechanical press is widely used, according to the characteristics of the structure can be divided into two categories: 1. Double crank type; 2. Crank rocker type. Figure 1 is a double-crank type six-bar linkage. When the active crank R rotates at an equal angular speed, the driven crank R ’is made to move through the connecting rod A at a variable speed. The direction of displacement of the slider is generally connected to the main link E connected to the slider and the C link of the driven crank R ’by the connection D of the center of rotation of the active crank and the driven crank. reasonable