Failure analysis of machining center machine

It is inevitable that the machine breaks down. Here we provide the common problems and make relevant diagnosis reasons

1、 Emergency stop or over travel:

1. The emergency stop button is pressed;
2. The main shaft has over travel;

2、 Spindle retraction tool uncertainty:

1. The limit switch of knife clamping and loosening is “1” or “0”;
2. No oxygen pressure source phenomenon;

3、 Cutting fluid motor overload:

1. Cutting fluid motor failure;
2. Cutting fluid overload discharge fault or contact wiring error;

4、 Abnormal spindle:

1. Inverter fault or contact error.

5、 Abnormal tool life:

1. Tool life has expired.

6、 Low lubricating oil level:

1. There is too little oil in the lubricating oil tank.

7、 Controller battery abnormal:

1. The controller battery has no power.

8、 Motor overload:

1. ATC motor failure;
2. ATC overload discharge failure or contact wiring error.

9、 Working door open:

1. In automatic mode, the working door is opened;

10、 Incorrect ATC position:

1. The detector signal of ATC tool changing arm is “1” or “0” at the same time;
2. There is no pressure source phenomenon.

11、 The spindle is not at the second source point:

1. The tool change of the spindle is not on the tool change point;

12、 Spindle overheating:

1. The spindle cooler is abnormal.

13、 Spindle not positioned:

1. The spindle is not on the positioning point when changing tool.

14、 Spindle not at first source point:

1. The spindle is not on the first source point when taking tool.

15、 Return to source point:

1. Emergency stop action has been executed after startup.

16、 Spindle cannot rotate:

1. When the spindle is loose, the spindle cannot rotate.