What are the common failures of 5-axis machining centres?

What are the common failures of 5-axis machining centres?

5-axis machining centre is a kind of high-precision and high-efficiency CNC machining equipment, which is widely used in mould making, aerospace, automotive parts and other industries. However, due to long time operation, wear and tear and improper use, 5-axis machining centre will also encounter some common failures. This article will introduce some common failures and countermeasures.

First of all, the spindle failure of 5-axis machining centre is one of the most common problems. The spindle is the core component of the machine, which is used to drive the tool to rotate and cut. Common spindle failures include the following: high spindle temperature, damaged spindle bearings, spindle stalling, etc. To solve these problems, firstly, the spindle temperature should be checked regularly to ensure that it is within the normal range; secondly, the spindle bearings should be replaced regularly to reduce the failures caused by damaged bearings; lastly, the spindle should be cleaned and lubricated regularly to prevent the phenomenon of hysteresis.

Secondly, the servo system of the five-axis linkage machining centre may also fail. The servo system is used to control the movement and position of each axis, and if it fails, it will lead to a decrease in machining accuracy or not work properly. Common servo system failures include: servo motor failure, servo controller failure, sensor failure and so on. For servo motor failure, it can be solved by replacing the motor or repairing the motor; for servo controller failure, it is necessary to replace the controller or repair; for sensor failure, it is necessary to clean or replace the sensor.

In addition, the tooling system of the five-axis linkage machining centre is also a common failure point. The tooling system is responsible for tool selection, addition and cutting operation. Common tooling system failures include the following: tool wear, loose tools, and tool collisions. Solutions to these failures include: checking tool wear regularly and replacing them in a timely manner; ensuring the reliability of the tool clamping device to avoid tool loosening; and setting appropriate process parameters to avoid damage caused by tool collisions.

Finally, the control system of the five-axis linkage machining centre may also fail. The control system is the "brain" of the machining centre, used to command the work of various components. Common control system failures are the following: program errors, communication failures, control panel failures and so on. To solve these failures, you need to carefully check the program code, repair errors; check the connection line and communication equipment to ensure that communication is normal; repair or replace the faulty control panel.

In short, five-axis linkage machining centres often encounter some faults during long operation. Understanding these common failures and taking appropriate countermeasures can effectively avoid the impact of failures on processing efficiency and quality. Of course, regular maintenance and repair is also the key to prevent failure.