The causes and solutions of spindle shaking in CNC drilling
In the operation of CNC drilling and milling machines, spindle shaking is a common problem, which can affect machining quality, reduce machining accuracy, and even damage workpieces and equipment. Especially on the CNC drilling and milling machine with movable beam gantry, the problem of spindle shaking is more prominent. This article will analyze and explore this problem from two aspects: causes and solutions, aiming to help operators better understand and solve this problem.
Reasons for spindle shaking:
1. Unstable tool installation: If the tool is not securely installed or the handle is damaged, it can cause the spindle to shake. In high-speed machining, the centrifugal force of the cutting tool can cause vibration of the spindle.
2. Wear of spindle bearings: After prolonged use, the spindle bearings may wear out, causing the spindle to shake. Especially when working under high loads and speeds, bearing wear is more severe.
3. Poor spindle cooling: The spindle generates a large amount of heat during high-speed operation. If the cooling is poor and the temperature is too high, it can cause the spindle to deform, resulting in shaking.
4. Unbalanced spindle installation: If the spindle installation is unbalanced or the bearing seat is incorrect, it will cause unstable spindle operation and produce shaking.
5. Improper tool selection: If the selected tool is not suitable for processing materials or process requirements, it will increase the load on the spindle and cause shaking.
