The difference between gear hobbing machine and gear hobbing machine

Writer： admin Time：2024-06-18 14:17:41 Browse：82℃

There are significant differences between gear hobbing machines and gear hobbing machines in terms of machining principles, machining accuracy, and application fields

Processing principle: The gear shaping machine adopts the cutting principle and utilizes the reciprocating linear motion of the 

gear shaping cutter to achieve the main motion, which belongs to the scope of planing. The gear hobbing machine adopts the rolling principle and 

utilizes the rotation of the hob to achieve motion, which belongs to the scope of milling.

Machining accuracy: The machining accuracy of gear hobbing machines is usually higher than that of gear hobbing machines. 

During the gear hobbing process, the hob is a multi edged tool with a small amount of feed per cutting, and the cutting is a continuous process,

Therefore, the cutting process has a smaller impact force, is stable, and is easy to achieve higher gear surface accuracy.

 In contrast, the gear shaping cutter is a single edged tool, cutting is an intermittent process, and most of the cutting time is idle travel. The gear shaping cutter

After each cutting is completed, the tool must return to its original position in a way that reduces the frequency of cutting 

and results in a larger amount of cutting each time, leading to lower surface accuracy of the gear.

Application field: Gear hobbing machines are mainly used for processing internal gears, small pitch multi link gears, etc., 

suitable for manufacturing gears with low precision requirements, such as gears in mechanical equipment such as automobiles, motorcycles, tractors, etc.

Gear hobbing machines are suitable for processing large modulus and high-precision gears, mainly used for producing gears with high precision requirements, 

such as high-speed motors, worm gear reducers, large machinery, etc.

Cost: Gear hobbing machines have higher costs, while gear slotting machines are more economical.

In summary, gear hobbing machines and gear hobbing machines each have their own advantages and applicability. 

The choice of machine tool to use depends on specific machining requirements and gear accuracy requirements