Quality Scheme

Interpretation of operational test of the machine using SPC method

  Setting – up sheet stipulates that each machine in assembly has to produce six parts of one spindle.

Three machined diameters of these parts are evaluated as well as three measures of length and cylindricality of the longest diameter.

The property of the machine as regards diameter is evaluated using static coefficient Cm.

 Measurement of lengths L1, L2, L3 is carried out with the help of dial indicator and with the accuracy of 0.002 mm. The magnitudes are loaded manually on keyboard into program PALSTAT.
 
 

Measurement of diameters D1, D2, D3 is carried out with the help of digital micrometer. The magnitudes are loaded through CDL – 02 bus  into programme PALSTAT where Cm is evaluated.

Particular magnitudes are saved in PALSTAT program formatted according to machine’s number.

Evaluation is carried out for each dimension independently using histogram and Cm coefficient of the property of the machine.

ZPS-CNC USA, Inc. 1225 Henri Dr. Wauconda, IL 60084
Phone: (847) 487-4353   fax: (847) 487-4352
e-mail: sales@zpsusa.com