4 major features of small modulus gear shaper cutters (for reference)

The 4 major features of small modulus gear shaper cutters are explained as follows, for reference and understanding.

1. The gear shaper is essentially a variable gear

It has a certain indexing cylinder, and the pressure angle on the indexing cylinder is standard.In order to obtain the relief angle and side angle of the tooth tip, and the tooth profile that does not affect the machining after sharpening, the shape of the modified gear is made in different sections perpendicular to the axis of the gear shaper, and has different modification coefficients, see Figure.

2. Gear-shaped straight tooth shaper cutter

The small-modulus gear shaping cutter adopts gear-shaped straight gear shaping cutter with simple structure and convenient manufacturing.

3. The minimum displacement coefficient must be determined

Since the number of teeth of the small-modulus gear shaper is more than that of the ordinary gear shaper, the undercutting problem of the gear shaper itself is generally not considered, so the minimum modification coefficient of the gear shaper can be made smaller, thereby increasing the number of teeth. The thickness of the tooth part of the tooth cutter.

But too thick thickness will be unfavorable for processing, so the minimum modification coefficient is selected according to the method of processing tool, rather than considering the undercutting of the gear shaper itself.Generally, the thickness of the small module gear shaper cutter is 6-10mm.

4. The maximum displacement coefficient must be determined

The larger the modification coefficient, the more durable the gear shaper tool, but the tip of the tooth will become sharp and the tool strength will be lower.gearInterference of transition curves will occur during meshing.Generally, the distance between the original cross section and the front end face is 3m.