If alignment of your punch press deteriorates to the point where tools dull too rapidly or workpiece quality is unacceptable, here are things you can check and fix:

1. Examine tool loading equipment for wear and damage. Adjust where possible. Replace where necessary. Clean and lubricate linkages.
2. Examine tool receptacles. Clean so that tools seat accurately and rigidly. Restore damaged or worn components. Check keys and keyways for proper clearance.
3. Keep your machine manual handy and refer to it regularly.