When the number of divisions is large,, you can use a simple dividing method of steel processing milling machine. Before the dividing, engage the worm and the worm gear, fix the dividing plate 7 with the locking screw 9 so that it can not be rotated and adjust the latch J to align it with the hole of the selected dividing plate. When dividing, pull out the latch J, turn the handle K, drive the dividing the head spindle to the desired dividing position, and then reinsert the plug into the dividing hole.
Set the workpiece to be equal to the score Z, that is, each time the division of the head of the spindle should be turned 1 / Z turn. By the transmission system can be seen, the handle each time the degree of rotation should be:
The above formula can be written as follows
(q is the number of holes in the selected hole; p is the number of holes that the pin 10 should turn over the hole of the q hole.)
Example: In the FW125 milling machine indexing head on the dividing, the degree of division Z = 32;
The fraction in the upper form is simplified into the simplest integer, which is 1 / 4, and then the numerator and denominator are multiplied by the same integer, so that the denominator is the number of holes in the hole, 16 or 24, 36, etc. on the dial.In this case, the dividing handle should be turned one full turn, then turn the 4 hole spacing between the 16 holes, or turn the 6 holes apart on the 24 hole.
To ensure that the dividing is correct, the angle of the dividing fork 5 should be adjusted so that its inner edge contains (p + 1) holes in the holes of the q holes so that the identification pin 10 should be turned the hole spacing, to prevent the operation of the error. The above is the simple dividing method of mill machine.