Rolling knife


Rolling tool is a type of cold extrusion forming tool, and cold extrusion processing is a chip free processing that applies a certain pressure to the surface of the workpiece through a certain form of rolling tool.


By utilizing the plastic deformation of metals at room temperature, the micro roughness of the workpiece surface is flattened to achieve the goal of changing the surface structure, mechanical properties, shape, and size. This method can achieve both finishing and surface strengthening of parts simultaneously.  


  

Spline rolling knife

Our spline rolling tool can process module m0.19~m2.0 according to the power of the rolling machine, with a pressure angle range of 20 °, 30 °, 37.5 °, and 45 °;


The highest processing accuracy can reach the national standard level 5, and the surface smoothness of the grinding tool is controlled at around Ra0.4.

Thread rolling knife

Our thread rolling tool can process various standard threads with a tooth pitch range of 0.5mm~8mm, and can also accept non-standard customization.

Alien rolling knife

Our special-shaped rolling knife can process a series of special structures such as tooth profile rolling, workpiece surface rolling, workpiece groove rolling, workpiece straightening, etc.

        

The use of rolling knives

Rolling knives are used in pairs. On the rolling mill, a pair of rolling knives with the same parameters are installed on the two main shafts of the rolling mill, and they rotate synchronously towards each other under the drive of the transmission mechanism to extrude the workpiece into shape.


Functionally similar to spline hobbing cutters and thread hobbing cutters. Mainly for cold extrusion processing of spline shafts with straight lines, diagonal lines, and worm gears.

duration

(Spline rolling tool used for workpiece processing)

The difference between rolling knife and grinding knife

When machining workpieces with rolling knives, it is necessary to adjust the synchronization of the two wheels to align the teeth


When machining workpieces with a gear hobbing tool, there is no need to align the teeth, which can save the debugging time of switching tools

When processing with a rolling knife, the size and cumulative error of the workpiece need to be fed into place through a moving wheel first, and then continuously rolled


The size of the teeth processed with a gear hobbing tool depends on the rigidity distance of the cutting tool, and is minimally affected by other factors

The processing stroke of rolling is not limited by the machine tool and is suitable for processing some large modulus spline parameters


The machining range of tooth rubbing is limited by the machine tool stroke, and it is suitable for machining small module spline parameters

Multi piece rolling knife, capable of processing multiple types of external teeth in one clamping, with higher processing efficiency than gear hobbing knives

Our rolling knife features

We use materials jointly developed with material manufacturers for our rolling knives, and have professional processing equipment to provide stable grinding for the machining process;


Each process strictly follows the operation manual, processes samples, and verifies tooth profiles through enlarged drawings, effectively controlling product accuracy;


A competent testing service team provides professional testing for product accuracy;

Reliable trial processing equipment ensures the best quality control for products leaving the factory.