Analysis on the Quality of Milling Pins of Spur Gears

The analysis of the quality problems of spur gear milling processing are as follows, for reference and understanding. For unclear places or related requirements, please contact EP Gear BrandFree consultation.

Spur gearAnalysis of the causes of 5 major quality problems in milling processing:

XNUMX. Wrong number of teeth:

The indexing calculation is wrong, or the indexing fork is used improperly and the wrong orifice circle is selected.

XNUMX. The number of teeth is not right, the tooth thickness is not equal or the tooth pitch error is out of tolerance:

1. The indexing head is operated incorrectly, if the indexing fork is not used correctly; the handle is not evenly rotated in one direction; when the indexing handle is accidentally rotated too much, the gap between the indexing head and worm pair is not eliminated.

2. The workpiece is not well calibrated, resulting in excessive radial runout of the workpiece.

XNUMX. Sleepy teeth:

The milling cutter is not centered.

XNUMX. Tooth height and tooth thickness are not accurate:

1. The depth of the milling layer is adjusted incorrectly.

2. Wrong choice of milling cutter modulus or tool number.

XNUMX. Tooth surface roughness value is too large:

1. The milling cutter is blunt or the milling amount is selected too large.

2. The spindle of the machine tool is loose or the iron plug of the worktable is too loose, so the machine tool vibrates greatly during milling.

3. The indexing head spindle is not tightened during milling, so the workpiece vibrates greatly during milling.

4. The workpiece is unstable in clamping or the milling cutter is not installed well, and there is a swing difference.