Everyone knows that the ball screw is a highly efficient and precise transmission element. Now it has its presence in the industry. It can almost be said that the use of screw has been seen everywhere. Because it has the advantages of high rigidity, no gap, synchronization, high sensitivity, simple maintenance, long life, etc., it is very suitable for the requirements of various industrial production equipment. But there are so many kinds of it, how do I choose the right screw? Let's take a look:
1. Model selection
The model mainly refers to the diameter and lead of the screw rod. According to the processing requirements, precision and technical requirements of the machine tool, the model that is definitely needed is initially determined. Finally, remember to check it. If the design meets the requirements, the final shape
2. Selection of lead screw precision
Because the precision parameters of the screw have a direct impact on the parts processed by the machine tool, it is generally only necessary to pass the accuracy verification if it meets the requirements. There is also a point that the screw is divided into 7 levels of accuracy, the highest is the first level, which decreases in order.
3. About the choice of screw support method
In the process of designing CNC machine tools, the support method of the screw rod usually chooses "fixed-support" or "fixed-fixed". The "fixed-support" support method is relatively easy to assemble, with better rigidity and high accuracy. It is mainly used in environments with medium speed, large stroke and heavier load; the "fixed-fixed" support method is relatively difficult to assemble. With good rigidity and high precision, it is often used under high speed, large stroke and heavy load environment.