? How is the process of processing the gearbox? - Yancheng XINLAN Precision Machinery Co., Ltd.

Yancheng XINLAN Precision Machinery Co., Ltd.

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How is the process of processing the gearbox?

Source: http://www.agricultural-gearbox.top/news594254.html时间:2021-04-17 09:55:00

Machining gearboxcrafting process:

1.Machining gearbox-Forging billet

Hot die forging is stillMachining gearThe blank forging process widely used in the box.In recent years, cross wedge rolling technology has been widely promoted in shaft machining.This technology is particularly suitable for making blanks for more complex stepped shafts. It not only has high precision, small subsequent machining allowances, but also high production efficiency.

2. Machining gearbox-normalizing

The purpose of the gear box processing technology is to obtain the hardness suitable for subsequent gear cutting and prepare the organization for the final heat treatment, so as to effectively reduce the heat treatment deformation.The material of gear steel used is usually 20CrMnTi. Generally, normalizing is affected by personnel, equipment and environment, which makes it difficult to control the cooling rate and uniformity of the workpiece, resulting in large differences in hardness and uneven metallographic structure. Affect metal cutting and final heat treatment, making thermal deformation large and irregular, and the quality of parts cannot be controlled.For this reason, the processing gearbox adopts isothermal normalizing process.Practice has proved that the use of isothermal normalizing has effectively changed the shortcomings of normal normalizing, and the product quality is stable and reliable.

3. Machining gearbox-turning processing

In order to meet the positioning requirements of high-precision machining gearboxes, all the gear blanks are processed by CNC lathes, and the turning tools are mechanically clamped without heavy grinding. This realizes the simultaneous completion of the hole diameter, end face and outer diameter processing in one clamping, which guarantees that The verticality requirements of the inner hole and the end face ensure the small size dispersion of the mass production of tooth blanks.Therefore, the precision of the gear blank is improved and the processing quality of the subsequent gears is ensured.In addition, the high efficiency of processing the gearbox also greatly reduces the number of equipment, and the economy is good.

4. Machining gearboxes-rolling and shaping gears

Common gear hobbing machines and gear shaping machines are still widely used for processing gears. Although it is easy to adjust and maintain, the production efficiency is low. If a large capacity is completed, multiple machines are required to produce at the same time.With the development of coating technology, the re-coating after sharpening of hobs and inserts is very convenient. Coated tools can significantly increase the service life, generally by more than 90%, which effectively reduces the number of tool changes. And sharpening time, the benefit is significant.

5. Machining gear box-shaving

Radial gear shaving technology is widely used in the production of high-volume automobile gears due to its high efficiency, easy realization of the modification requirements of the designed tooth profile and tooth direction.

6. Machining gearbox-heat treatment

Processing gearbox requires carburizing and quenching to ensure its good mechanical properties.For products that no longer undergo gear grinding after heating, stable and reliable heat treatment equipment is essential.


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