The role of the digital servo system is as follows

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The role of the digital servo system is as follows

Beitragvon jingwang123 am So 6. Nov 2022, 06:14

1) The sampling speed of the current loop will be increased, and the improvement of the current loop control will be added to reduce the motor temperature rise. In this way, not only the life of the motor can be extended, but also the heat transferred to the ball screw can be reduced, thereby improving the accuracy of the lead screw. In addition, the increased sampling speed can also increase the gain of the speed loop, which helps to improve the overall performance of the machine.
2) Since many new CNC use high-speed sequences to connect to servo loops, through the communication link, CNC can obtain more information about the operation of motors and drives. This improves the maintenance performance of the machine.
3) Continuous position feedback allows high-precision machining at high feeds. The acceleration of CNC computing speed makes the rate of position feedback a bottleneck that restricts the running speed of machine tools. In the traditional feedback method, the feedback speed is limited by the signal type as the sampling speed of the CNC and the external encoder of the electronic device changes. With serial feedback, this problem will be solved very well. Even when the machine is running at high speeds, precise feedback accuracy is achieved.
6. The working performance and popularity of linear motors have been significantly improved, so many machining centers have adopted this device. Some advanced technologies allow the linear motor on the machine to have a maximum output force of 15,500N and a maximum acceleration of 30g. The application of other advanced technologies has led to a reduction in size, weight and cooling efficiency. All these technological advances have given linear motors an advantage over rotating machines: higher add/deceleration; More accurate positioning control, higher rigidity; Higher reliability; Dynamic braking inside

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