Introduction of gear profile cutting process

Profiling method is a commonly used method in gear machining at present. This cutting method includes milling method and broaching method. Next, we will introduce the profile cutting process of sprocket in detail.



1. First place the machined sprocket on the scale plate, and the sprocket is fixed by pressing plate and bolt on the mandrel. The ring gear surface must be flat.



2. At any position on the machined gear ring, cut the tooth profile with a depth of 4-5mm less than the designed tooth profile according to the template tooth profile, and then measure the perpendicularity of its tooth surface with a square.



3. Measure the distance H between the cut tooth profile depth and the machined shaft hole edge.



4. Calculate the machining depth B. B=Measured dimension - the distance between the edge of the shaft hole and the edge of the diameter of the indexing circle.



5. Adjust the connecting rod size of the cutting machine, that is, extend a deepening amount on the basis of the original size, and cut according to the template after adjustment.



6. After cutting a tooth, use a dial to index. After cutting three teeth, measure the in-position distance on the same side across the teeth, and move one tooth in the same way after cutting the fourth tooth, and so on.



7. If the difference between the measured dimensions is large or the width of the tooth top is large, the wider part can be cut and welded on another tooth surface for trimming.



8. The cut tooth surface is polished with a hand grinding wheel and then quenched.