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The Problem

DiPaolo Machine Tools was approached to re-manufacture their travelling column milling machine. The customer had experienced issues with the machine since it was delivered.

  • Overall rigidity of the machine
  • Rigidity of the spindle resulting which limited cutting capacity and productivity
  • Reliability of the Automatic tool changer

 

The Solution

  • DiPaolo proposed that a full re-manufacture was needed including:
  • Conversion of the Tychoway bearing guiding system to Turcite B Slydway on boxway guiding system
  • A new spindle cartridge with bigger bearings
  • A new cam-driven ATC

Approach

The machine was removed from production and shipped to DiPaolo’s main workshop.  There the machine was completely dismantled and rebuilt from the ground up.

After a thorough engineering analysis, it was deemed that the original headstock wouldn’t be suitable to rebuild.  A new casting was designed and built to house a new SETCO Spindle. The spindle characteristics were HSK 100 taper, 5400 RPM and mist lubrication.

As the machine assembly was being finalized, a completely new electrical installation was fitted to the machine featuring a Siemens 840Dsl CNC control, motors, and drives.

Result

Eight months after the start of the project the machine was returned to the customer.  In 3 weeks the machine was put into production with 98% up-time and higher productivity than when the machine was installed.