The Difference between Horizontal And Vertical Hobbing Machines

These are two common types of gear processing equipment, which differ in terms of processing principle, processing range and applicable occasions.

1. Processing principle:

- Horizontal gear hobbing machine's spindle is arranged horizontally, the workpiece is clamped on the worktable, relative motion is generated between the hob and the workpiece, and the gear is processed through the rotation and axial movement of the hob and the workpiece. This layout is more convenient for the processing of long shaft parts.

- Vertical hobbing machines have the spindle set vertically, the workpiece is fixed on a rotating table, and the hob is mounted on a tool holder that can be moved in the vertical direction. This layout is more suitable for the processing of gear parts with larger diameter and shorter length, and at the same time, it is more advantageous in the processing of some specific shapes of gears (such as internal gears).

2. Machining range:

- Horizontal hobbing machines are usually used to process straight and helical cylindrical gears, and can also process worm gears and other non-standard gears. Due to its structural characteristics, it is more specialized in dealing with longer shaft parts, such as gear shafts in transmissions.

- Vertical hobbing machines, on the other hand, are mainly used to process gears with larger diameters, including, but not limited to, cylindrical gears, bevel gears, worm gears and worm wheels. It is particularly suitable for processing internal gears, i.e. those gear types that need to be processed from the center outwards.

3. Applicable occasions:

- Horizontal hobbing machines, which excel at machining long shaft gears, are commonly used in automotive manufacturing, aerospace industries, etc., which often require the machining of longer gear shaft components.

- Vertical hobbing machines are widely used in industries such as wind power and heavy machinery manufacturing due to their ability to easily process large diameter gears and internal gears. In addition, vertical hobbing machines are suitable for precision machining.

The choice of which type of machine to use depends on factors such as the specific application requirements, the characteristics of the object to be machined, and the desired machining accuracy.

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