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WD130A卧式镗床是南京机床厂的大型重要设备,由捷克制造,70年代末进口。机床的X、Y、Z三轴的位移和速度均由电液伺服控制。本文将改造后的电液伺服系统的工作原理及有关要点作简要介绍。 1 电液伺服回路组成及工作原理机床的控制部分由三个独立的电液伺服回路组成,每个回路设计相同,分别控制机床的X、Y、Z轴运动。图1为单轴回路的系统框图。根据使用要求,系统应具有良好的速度控制功能,使之在机床切削运动时能抗切削力干扰,始终保
WD130A horizontal boring machine is a large-scale important equipment of Nanjing Machine Tool Plant, made by Czech Republic, imported in 70s. Machine X, Y, Z axis of displacement and speed by electro-hydraulic servo control. This article will transform the working principle of electro-hydraulic servo system and related points for a brief introduction. 1 Electro-hydraulic servo circuit composition and working principle The control part of the machine consists of three independent electro-hydraulic servo circuit, each circuit design the same, respectively, to control the machine X, Y, Z axis movement. Figure 1 shows the system block diagram of a single-axis circuit. According to the requirements, the system should have a good speed control function, so that when the machine tool cutting movement resistance to cutting force, and always Paul