Universal mini manual lathe dividing head with chuck for mill
As one might expect from the name, the dividing head is all about dividing. Dividing is not about moving through a certain angle but is more about dividing a whole circle into a specific number of parts. The most obvious use of this is when gear cutting. The circle has to be divided by the number of teeth needed on the gear to be cut. (Of course, in reality, teeth are not cut – it is the space between them that is cut.) One tooth is cut then the workpiece is rotated by the required amount and then the next tooth is cut and so on till all of the teeth have been cut.
Most dividing heads have a built in indexing ring. This is fixed to the spindle. It has holes spaced round it and a pin mechanism to lock the spindle on any one of these holes. This form of indexing does not have to use the worm and worm wheel. These can be disengaged. The workpiece is free to rotate except where the indexing pin locks with the indexing plate. Of course the only numbers that can be divided by are numbers that divide into the number of holes on the indexing plate. But there are many times when this is useful.
The advantage of this is that it is much quicker than having to rotate the spindle using the worm and worm wheel. It is also possible to have the worm and wormwheel engaged and to turn it using the handle and then to lock the spindle using the indexing plate.
Whenever the spindle is locked using the pin and the indexing plate, the spindle does not need to be clamped.
Whereas a rotary table is always calibrated in degrees round its edge a dividing head never is
Universal Dividing Head
|Order No.||A||B||H||h||a||b||g||Spindle hole||N.W|
Number of holes dividing plate A,B,C
Universal dividing head Factory
BoRui Precision is dedicated to R&DProduction and Sales of machine tools accessories. Main products are collets, tool holders, precision vises, lathe chucks and others. BoRui owns all kinds of cnc machines of around 150 sets. There are more than 200 technical workers. The annual turnover exceeds 80 millions RMB. BoRui has become the lead enterprise in Chinese machine tools accessories industry.
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