The difference between the servo system of CNC lathe processing

CNC machining is a high-precision and high-efficiency automatic machine tool machining method that uses digital information to control the displacement of parts and tools. In order to solve the problems of changing varieties, small batches, complex shapes and high precision of aerospace product parts, etc., it provides an effective way to achieve high-efficiency automatic processing. And CNC CNC lathe processing is divided into three servo systems: open-loop, closed-loop, and semi-closed-loop. Let's take a look.

1. Open loop: The machine tool has no feedback information from the position sensor. After the CNC lathe completes the part program, the digital command is transmitted to the servo system, so that the movable structure of the driving head bed is simple, economical and convenient, but the speed and accuracy are low, suitable for small and medium-sized machine tools with low precision requirements, mostly used for CNC retrofit of old machine tools.

2. Closed loop: The machine tool is equipped with a position detection device, which can directly measure the displacement of the workpiece with high precision, but the design and adjustment of the system are cumbersome and the structure Complicated and high cost, it is mainly used for high-precision drilling, ultra-precision milling machines, ultra-circular milling machines, machining centers, etc.

3. Semi-closed servo system: This CNC machine can measure the lead screw through the angle set on the feed screw or the end of the electronic head Rotate the angle to obtain accurate and rapid feedback information of the position information, so as to realize the accurate positioning of the position, such as CNC lathes, CNC milling machines, machining centers, etc.

Today's explanation is here first. The above is the whole content of today. I believe that everyone is also familiar with the open-loop, closed-loop and semi-closed-loop servo systems of CNC lathes. have a certain understanding of the difference. Thank you for your patience in reading. For more questions about CNC lathe processing, please call the service hotline in the upper right corner to contact us.