CNC Machine Installation and Validation
Protomatic has recently added a Haas 5 Axis CNC milling machine to support the growing demand. Adding a new machine (new or used) requires a thorough installation process and validation testing prior to use. This is a brief outline of the process prior to use.
Precision Machine Level
Ball Bar Test
Installation of a
Machine Level- Typically machines are very accurately leveled with maximum error of 0.0005'' over 10" with various table positions.
Spindle Sweep- This checks the machine tool for tram (perpendicularity to the machine table). The spindle sweep using an indicator mounted to the spindle shaft is rotated with a 5'' radius. The error should be no larger than 0.0001''.
Lube System Verification- Verifies that machine lubrication system is operating correctly.
Compressed Air Check- Verifies that the system air is clean, dry and has correct pressure (PSI).
Ball Bar Test- This will test for the combination axis. This tests three orthogonal planes. The results are then recorded and posted on the machine confirming accuracy.
Environment- Confirm that the environment is maintaining a consistent temperature. This is critical for manufacturing consistent parts. Confirm that the machine is thermally stabilized and is conditioned to the average 76F environment.
Rotary Table Testing- We confirm that the rotary tables move like they are programmed. We correct for any error(s).
Test Part- Coolant is then added to the machine and a test part is manufactured. This demonstrates loaded conditions. Machine is ready for final verification.
Verification vs Validation
We are ready to Run!