Universal dividing head
Dividing head is mounted on a milling machine for the workpiece is divided into equal parts of any machine tool accessories. The use of sub-degree scale ring and the cursor, pins and sub-dial and switch gear, to be installed at the top card from time to time into the chuck on the workpiece at any angle, can be circular

Arbitrarily divided into equal parts, auxiliary machine tool using a variety of different shapes for various trench is versatile gear ﹑ ﹑ ﹑ helical gears Archimedes spiral cam and other processing work. Universal dividing head is also equipped with a round table, the workpiece can be directly secured to the work

For the stage, also available mounted on the bench fixture fastening, multi-faceted process to complete the workpiece.
Universal dividing head features:
Universal dividing head is the main types of milling attachment is an indispensable tool, it can be installed on top or between the workpiece on the chuck or at any angle into equal portions (2 equal portions 210 equal portions), the trench can be , spur gear and other processes. Universal dividing the

Heart is a simple type of universal indexing Center and can be used directly, then between the indexing method for indexing and close-up of the spiral process, including, without accessories, but the whole structure and dividing head and tailstock Wanli who is to the same type.
1, using the worm changes and Quadrant, resulting in easy indexing worm, the design features;
2, spindle, worm and senior Department of independence just wood, the base surface hardening and accurate, durable;
3, lathe tailstock is a dovetail design firm but adjustable to achieve proper alignment;
4, worm gear, worm reduction rate of 40:1, the unit with the two sides of the dividing plate provided;
5, A surface indexing of 24,25,28,30,34,37,39,41,42 and 43;
6, B side as 46,47,49,51,53,54,57,58,59,62 and 66;
7, the worm changes, 24,28,32,38,40,44,48,56,64,72,86 and 100 can provide a wide range of other gear;
8, each dividing head to provide a complete central axis, a quarter of the worm gear rack to change the instrument, the worm changes the component. Turning tail and sub-dial and so on.

Universal dividing head structure
Universal dividing head equipped with accessories:
Last ride a
Jack 1
Rotary 2
Flange 1
Universal dividing head indexing categories:
Direct indexing
360 ° on the spindle can be used dial the indexing of the workpiece, or decile, dividing a value of 1 °.
Precision Indexing
Can make use of indexing plate (2), A, B, C, D four sides of the workpiece through flexible handle decile (decile 2 equal portions to 210), this indexing method most widely in use. Positioning handle the transfer number n can be determined according to different needs
Universal dividing head of the function:
1) so that the workpiece around its own axis of division (ranging from decile or points). Such as six, gears, splines, and so sub-parts.
2) relative to the workpiece axis milling machine table table tie it at the desired angle (horizontal, vertical or inclined). Therefore, it can process different angles of slope.
3) In the spiral groove or cam milling, in line with continuous table movement to the workpiece rotation.
Universal dividing head structure:
Dividing head base that has the rotating body, dividing head spindle in the vertical plane with the rotating body within the 90 ° and down 10 ° range of rotation. Spindle nose often with three-jaw chuck or top. Pull out the indexing pins, turn the handle, by tooth

Ratio of 1 / 1 spur gear drive, worm drive rotation, but also by the number of teeth of the worm by the deputy for the 1:40 drive, drive spindle indexing, see in-kind or flip chart. When dividing head rotation handle a turn, the worm can turn the spindle drive

1 / 40 turn. Required to turn the handle then dividing the number of revolutions n is:
1:40 = 1 / z: n
n = 40 / z
Universal dividing head indexing method:
Simple indexing method. For example, indexing z = 35. Each sub-degrees of rotation of the handle turn:
n = 40 / z = 40/35 = 1 and 1 / 7
That is one per division, need to turn the handle 1 1 / 8 turn. This 1 / 7 turn is controlled by sub-dial, usually dividing head with two sub-dial. Rotary has many rings on both sides of the hole, loop holes are not so different, but at the same hole on the pitch circle is relative

And so on. The first piece of positive sub-dial the number of ring holes were 24,25,28,30,34,37; negative for 38,39,41,42,43, positive second sub-dial the number of ring holes were 46,47,49,51,53,534; negative were 57,

58,59,62,66.
Simple indexing, the indexing plate stationary. At this point the indexing plate on the pins pulled out, adjust the number of holes 7 of the multiple holes on the circle, now available 8,42,49. If you choose 42 holes, that is 1 / 7 = 6 / 42. Therefore, sub-degrees, the handle turned a

Turn, and then along the holes on a circle of 42 holes turned six hole spacing.
Number of holes in order to avoid the tedious and time to ensure that the number of holes turned the handle, reliable, scalable indexing plate-shaped clip on the two points the angle between the desire to make it equal to the number of points of the hole spacing, so in turn sub-degrees can be accurate.