If there is a tailstock failure or the friction plate is stuck in a CNC vertical lathe, the following are some countermeasures:
Tailstock failure:

1. Check the tailstock device: Check whether the tailstock device of the CNC vertical lathe is installed and adjusted correctly to ensure that the position and clamping capacity of the CNC vertical lathe tailstock are normal.
2. Check the lubrication system: Ensure that the lubrication system of the tailstock of the CNC vertical lathe is working properly and that the lubricant is sufficient. If it is found that the CNC vertical lathe is poorly lubricated, clean it in time and add an appropriate amount of lubricant.
3. Check the tailstock pressure: Confirm whether the pressure of the tailstock of the CNC vertical lathe is correct. Too high or too low may cause malfunction. Make corresponding adjustments according to the operation manual of the CNC vertical lathe.

The friction plate is stuck:

1. Stop inspection: Stop the machine tool immediately, cut off the power supply, and ensure safe operation. Avoid further damage to the machine or personal injury.
2. Cleaning and lubrication: Check the reason why the friction plate is stuck. It may be caused by dirt or impurities. Clean the stuck part and lubricate the mechanical parts with an appropriate amount of lubricant.
3. Check mechanical components: Check whether the mechanical components where the friction plate is located, such as movable shafts, sliding bearings, etc., are operating normally and whether there is abnormal wear or damage.
4. Contact maintenance personnel: If the problem still cannot be solved after cleaning and lubrication, it is recommended to contact professional CNC maintenance personnel for inspection and maintenance.

Note: Safety is always the first consideration when dealing with faults of CNC vertical lathes. Ensure operators wear personal protective equipment and follow relevant operating procedures and maintenance procedures. For machine tool fault repair, it is best to have it handled by experienced professional maintenance personnel to ensure the safety of the operation and the accuracy of the effect.