Tool magazine use good or bad directly affects the efficiency of the machining center and machining capacity, CNC machining center tool magazine structure is more complex, and in the work of the frequent movement, there will be some common failures, so in the discovery of the machining center tool magazine should be inspected and repaired when there is a failure, otherwise it will cause the whole machine to stop working. The following is to talk to you about the machining center tool magazine common faults and solution methods and maintenance points of the tool magazine:

The main faults of CNC machining center tool magazine

There are 4 main faults of CNC machining center tool magazine: tool magazine can not rotate or rotation is not in place, tool change tool drop, tool plus not tighten the tool drop, tool magazine card knife.

1. Tool magazine can not rotate or rotation is not in place

Tool magazine can not rotate the reasons may be:

• coupling motor shaft and worm shaft coupling loose;

• inverter failure, should check the inverter input and output voltage is normal;

• plc no control output, may be the interface board in the relay failure;

• mechanical connection is too tight;

• grid voltage is too low;

2. Dropping the knife when exchanging tools

The spindle box does not return to the tool change point when changing tools or the tool change point drifts, and the robot starts pulling out the knife without being in place when grasping the knife, which will lead to the dropping of the knife when exchanging tools.

At this time, the spindle box should be re-moved, so that it returns to the position of the tool change point, reset the tool change point;

Or you didn't choose the right router bits.

Rico supplies various router bits, you can find many kinds of router bits for wood, metal, plastic, stones, etc.

3. Tool clamping is not tight to drop the knife

The reason may be that the clamping claw spring pressure is too small; or spring behind the nut is loose; or tool overweight; or the robot clamping lock does not work. Or the tool pocket failure, you need to change the tool pot.

Rico supplies many tool pot/pocket/sleeve.

4. Tool magazine appears Jamming knife

The main reason is that the spindle orientation angle is not correct, the orientation angle run is generally mostly due to impact, or spindle synchronized toothed belt problems, resulting in directional angle error, directional inaccuracy will also cause the tool magazine tool change abnormalities and other problems;

Tool change home position abnormality, if the vertical machining centers have been caused by misoperation and other collision accidents, the most likely cause of tool change home position is incorrect, manifested in the tool arm when changing the knife pulling, loading the knife rattling, and even lead to card knife, time will also be damaged tool arm.

Maintenance points of CNC machining center tool magazine

1. It is strictly prohibited to load overweight and long tools into the tool magazine to prevent the tool from dropping or colliding with the workpiece or fixture when the robot changes the tool.

2. Sequential tool selection must pay attention to the tool placed in the tool magazine in the correct order, and other tool selection should also pay attention to the tool to be replaced with the required tool is the same, to prevent changing the wrong tool to cause accidents.

3. manually loaded to the tool magazine on the knife, to ensure that loaded in place, loaded firmly, and check whether the locking device on the knife seat is reliable.

4. often check the zero position of the tool magazine back to the correct position, check the machine tool spindle back to change the position of the point in place, found that the problem should be adjusted in a timely manner, otherwise it can not complete the tool change action.

5. Pay attention to keep the tool shank and tool set clean.

6. When the machine is turned on, the tool magazine and the robot should be made to run empty first, to check whether the work of each part is normal, especially the travel switch and the solenoid valve can act normally. Check whether the pressure of the hydraulic system of the manipulator is normal, whether the locking of the tool in the manipulator is reliable, and should be dealt with in time when abnormalities are found.

There are many knowledge you can find in RicoCNC, please contact us if any questions.

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