Three problems should be paid attention to in gear forming hobbing

The three issues that should be paid attention to in gear forming hobbing are as follows, for reference and understanding.

1. In order to ensure the normal progress of forming hobbing, the forming hob is mounted on the cutter shaft, and there must be an installation angle relative to the workpiece.

The calculation formula of the installation angle is as follows:

2. In order to ensure the normal progress of forming hobbing, the position of the forming hob's fine-cutting teeth must be fixed at a specific position.

The following figure is a schematic diagram of the position of the fine cutting teeth when the hobbing timing instrument uses the arc tooth profile.

The position in picture a is the correct position, and the correct tooth profile can be rolled out. The position in picture b is not the correct position, and there is an error in the hobbing profile.

Therefore, when forming a hob-cutting workpiece, the position of the fine-cutting teeth must be strictly determined.

3. The cutting amount selection for forming hobbing can refer to the cutting amount during milling.

Do not use the cutting amount for ordinary hobbing, otherwise the machining accuracy will be reduced and the tool life will be reduced.

The above is the content sharing of 3 issues that should be paid attention to in gear forming hobbing, for reference, if you have more questions or relatedGear processingIf you need, you can consult EP for free.