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位置检测元件是数控机床的重要组成部分,检测元件采用直接或间接的方法将数控机床的执行机构或工作台等设备的速度和位移检测出来,并发出反馈信号,与数控系统发出的信号指令相比较,构成闭环(半闭环)系统,补偿执行机构的位置误差,从而提高数控机床加工精度。本文阐述了数控机床检测元件的日常维护及注意事项,通过长期实践总结积累了位置检测元件常见的故障及维修实例。
The position detection element is an important part of the CNC machine tool. The detection element uses the direct or indirect method to detect the speed and displacement of the equipment of the CNC machine tool, such as the work implement or workbench, and sends the feedback signal to the signal command phase Compared to constitute a closed-loop (semi-closed-loop) system to compensate for the position of the actuator error, thereby enhancing the machining accuracy of CNC machine tools. This article describes the routine maintenance and precautions of CNC machine tool inspection components, and accumulates the common faults and repair cases of the position detection components through long-term practice.