SERDI Patent 1996

SERDI PATENTS 1996

| SERDI Patent 1980 | SERDI Patent 1996 | SERDI Patent 1999 |

Triple air-float automatic centering with built-in spindle motor
Patent # US 5.769.576 EUR 273.540.91.51

The patented Triple Air-Float Automotic Centering System combines the advantages of the original SERDI patented automatic centering with the new benefits of an additional air floatation and a built-in spindle motor.

This new design greatly reduces the number of parts free-floating during the centering sequence. The built-in spindle motor eliminates all pulleys, belts and transmission shafts. This results in minimal workhead inertia and maximum floatation for unmatched sensitivity and accuracy during the centering process. This is designed for today's super small valve guide, yet rugged enough to accommodate large heavy-duty applications.

The workhead free floating and moves rapidly across the entire surface of the upper machine bed. A, B, C, D.

Once the spindle aligns to the seat to be machined, the workhead is clamped onto the machine bed. The carbide pilot mounted in the spindle nose is lowered into the valve guide. 6.

Both sphere and sphere housing air floatation are activated. The free floating spindle automatically aligns into the valve guide. 1, 2, 3, 4, 5.

Only a few parts are free floating during the centering process. In addition the built-in spinle motor has no heavy or bulky outside transmission linkage not any kind of driving mechanism affecting the ultimate balance and sensitivity of the spindle.

This is the guarantee of perfect centering, everytime, even when valve guides are below 4mm/.16" diameter.