Precision Gear Milling Chucks

Every week exciting new projects are heading out the door, such as this Custom Diaphragm Chuck for milling precision gears.

Brief:

The customers work piece is a small precision gear that requires milling on one face, timed to existing geometry.

Challenge:

The outer diameter of this gear could not be touched so it needed to be gripped on the root diameter.

Solution:

A Northfield DPH-400 (.00050'' T.I.R.) 4” diameter diaphragm chuck was provided, with sub jaws, changeable inserts and stops for different sized work pieces.

• The inserts are wire cut to clear the major diameter and clamp on the root diameter.
• Changeable stop pads have timing pins, to orient the work pieces prior to clamping.
• The base stop has a ground indicating band for initial setup.
• The chucks “pull back” clamping action ensures the part is seated flat.

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