Customised precision large spline shafts details:
There are many processing methods for spline shafts. DAYUE mainly uses cutting methods such as hobbing, milling and grinding, and also uses plastic deformation processing methods such as cold beating and cold rolling.
1, hobbing method: using spline hobbing in the
Spline Shaft milling machine or hobbing machine according to the method of processing, this method of productivity and accuracy are high, suitable for mass production.
2, milling method: in the universal milling machine with a special forming milling cutter directly milled out the contour between the teeth, using the indexing head to divide the tooth by tooth milling; if you do not use the forming milling cutter, you can also use two disc milling cutter at the same time milling a tooth on both sides, after milling good tooth by tooth and then use a disc milling cutter on the bottom diameter for slight trimming. The productivity and accuracy of the milling method are low, and it is mainly used in small batches of single-piece production to process the outer diameter of the centered
Spline shaft and the rough machining before hardening.
3、Grinding method: The spline tooth side and bottom diameter are ground on the spline grinding machine with a shaped wheel, which is suitable for machining hardened spline shafts or spline shafts with higher accuracy requirements, especially those centred on the inner diameter.
4. Cold beating method: On special machines. Symmetrically arranged on the outside of the workpiece circumference of the two hitting head, with the workpiece indexing rotary motion and axial feed for a constant speed ratio of high-speed rotation, the workpiece each turn 1 tooth, hitting the head of the forming hitting wheel on the workpiece teeth groove part of the hammering 1, in the hitting wheel high-speed, high-energy movement under continuous hammering, the workpiece surface plastic deformation into spline.
The accuracy of cold beating is between milling and grinding, and the efficiency is about 5 times higher than milling.
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