Gear processing method six: milling gear processing

Gear processing method XNUMX: The relevant instructions for milling gear processing are as follows, for your reference and understanding, you can consult EP for free if you are unclear or related requirements.

Gear milling is a kind of forming method. Others include gear pull and profile grinding. Gear milling cutters are used to mill the tooth grooves of gears and racks on a milling machine.It uses a forming milling cutter that is completely consistent with the shape of the tooth to be cut to cut the tooth shape. This method has low processing efficiency and processing accuracy, and is suitable for single-piece small batch production and low-precision gear processing.Regarding the difference between forming method and forming method, if you are unclear, please click on the article "The difference between the forming method and the forming method"View related instructions.

Spur gearGear milling:

1. Check the tooth blank:

Check the size of the addendum circle; check the aperture size and the coaxiality of the inner hole and the outer circle; check the perpendicularity between the reference end face and the inner hole.

2. Installing the indexing head and indexing calculation:

Install the indexing head and tailstock, the installation method is the same as the milling spline shaft; the indexing calculation and adjustment of the indexing fork.

3. Clamping and adjusting the workpiece:

Use a special mandrel for clamping, and match the special mandrel with the inner hole of the workpiece; in single-piece production, if there is no special mandrel, use a mandrel with a shaft diameter smaller than the hole diameter to clamp the workpiece;

4. Selection and installation of milling cutters:

According to the data in the drawing, select the corresponding milling cutter.

5. Knife setting:

That is to center, so that the midpoint of the gear milling cutter passes through the axis of the workpiece.

6. Adjust the amount of milling:

7. Adjust the depth of the milling layer:

If the precision of the gear is not high, the surface roughness value is also large, and the modulus is small, the entire tooth depth can be milled at one time.

However, in order to ensure accurate tooth thickness dimensions and smaller surface roughness values, it is often done in two feeds for roughing and finishing milling.

When milling teeth, the uniformity of the teeth is guaranteed by the indexing head. Therefore, the indexing head with better accuracy (preferably new) or the indexing head with high accuracy should be selected.The tooth profile is mainly guaranteed by the profile of the milling cutter.More related content description orGear processingIf you need, you can seek help from EP technicians. Our company provides comprehensive solutions for professional one-to-one application scenarios!