1. Fault of CNC drilling machine spindle components

Common faults include: malfunction of automatic tightening drill handle device, malfunction of automatic transmission device, and unstable maintenance of spindle motion accuracy.

2. Faults in the feed transmission chain of CNC drilling machines

Its faults are generally manifested by a decrease in motion quality, such as a decrease in positioning precision, an increase in reverse clearance, crawling of the worktable during feed motion, and excessive bearing noise. This type of fault is usually eliminated by adjusting the pre tension of the motion pair, adjusting the loosening link, and adjusting the compensation link.

3. Fault of automatic tool change device (ATC) on CNC drilling machine

The failure of this device accounts for about 50%, manifested in: movement failure of the tool magazine; Excessive positioning error; The mechanical gripper handle is unstable, and the movement error of the robotic arm is too large, which will cause the tool changing action to get stuck and the entire machine to stop running.

4. Fault in the pressing of the travel switch used for position detection on CNC drilling machines

The main factors affecting the normal compression of the travel switch include changes in the motion characteristics of the moving parts, the reliability of the mechanical device of the compression travel switch, and the quality characteristics of the travel switch itself. Faults are eliminated by adjusting or replacing components.

5. Malfunction of CNC drilling machine accessories

The supporting accessories include faults in cutting fluid, chip removal device, guide rail protection, spindle cooling temperature control box, etc.