How to distribute the precision of CNC cutting machine in solid wood processing equipment?

by:Gewinn     2020-03-08
As we all know, synchronous belts have certain tension. If they are used for a long time, they will more or less lead to a decrease in precision. The precision requirements for solid wood processing equipment and machines are appropriately strict. Therefore, all kinds of accessories must be reasonably distributed. 1. The work of numerical control cutting machine is generally heavy load and high precision: its characteristic is that the torque required to move the load often far exceeds the torque capacity of the servo motor itself. And through the reducer to do the servo motor output torque progress, can be useful to deal with this problem. 2. Progressive torque: the method of improving output torque may choose to directly increase the output torque of the servo motor, but this method is not only necessary to use valuable and high-power servo motors, the motor should also have a more robust structure. The increase of torque is proportional to the increase of control current. At the moment, relatively large drivers are selected, and the standards of power electronic components and related electromechanical equipment are increased, it will greatly increase the cost of the control system. 3. Add application power: in theory, improving the power of servo motor is also a way to improve the output torque. The power density of servo system can be doubled by adding twice the speed of servo motor, and there is no need to add the standard of control system components such as drives, that is, there is no need to add rated capital. This requires the distribution of planetary reducer to achieve the purpose of improving torque. Therefore, the development of high-power servo motors is necessary to allocate and use reducers instead of eliminating them. 4. Progress in application performance: it is understood that improper matching of load inertia is one of the biggest reasons for unstable servo control. With regard to the large load inertia, the inverse square ratio of the reduction ratio can be used to distribute the best equivalent load inertia to obtain the best control response. Therefore, from this point of view, the planetary reducer is the best match for the control Echo used by the servo.
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