Grinding machine gear processing process

Grinding machine gears are very common in transmission, including fine grinding technology, etc., so let's learn about the processing process of grinding machine gears together!

1. Forging blank

Hot forging is still a rough forging technology widely used in automobile gears. In recent years, this technique has been particularly suitable for making more complex stepped shaft blanks. Cross wedge rolling technology is widely used in shafting processing, which not only has high precision, but also has less processing volume and high production efficiency.

2. make a fire

The purpose of this process is to obtain a hardness suitable for subsequent gear cutting. The gear steel material used is usually 20CrMnTi. The normal fire is greatly affected by personnel, equipment and environment, which prepares the organization for heat treatment and effectively reduces the deformation of heat treatment. The thermal deformation is large and irregular, and the quality of the parts cannot be controlled. To this end, the isothermal normalizing technique is used. Practice has proved that the cooling speed and uniformity of the workpiece are difficult to control, the hardness difference is large, and the metallographic structure is uneven. Affecting metal cutting and heat treatment, the use of isothermal normalizing effectively changes the shortcomings of normal normalizing, and the product quality is stable and reliable.

3. Grinding machine gear turning processing

In order to meet the positioning requirements of high-precision grinding machine gear processing, the one-time chuck processing of the aperture, end face and outer diameter is completed at the same time to ensure the verticality requirements of the inner hole and end face. All gear blanks are processed by CNC lathes and mechanical chucks are used., No turning tool is required to regrind, which ensures the processing quality of subsequent gears. In addition, the high efficiency of CNC lathe processing also greatly reduces the number of equipment, and the small size of the large-scale production of tooth blanks. Therefore, the accuracy of gear blanks is improved, and the economy is good.

4. Hob and dentures

Grinding machine gear processing equipment still uses a large number of ordinary gear hobbing machines and gear shaper machines. With the development of coating technology, the recoating after hob and sharpening is very convenient. Easy to adjust and maintain, but low productivity. To complete a large capacity, it is necessary to produce multiple machines at the same time. Coated tools can greatly increase the service life, generally by more than 90%, effectively reducing the number of blade replacements and grinding time, and the effect is great.

5. Razor

Grinding machine gear radial shaving technology because of its high efficiency, easy to achieve the design of tooth profile and tooth profile dressing requirements, widely used in the production of a large number of automotive gears, the technology is mature, stable and reliable processing quality.

6. Heat Treatment

Grinding machine gears need carburizing and quenching, and stable and reliable heat treatment equipment is essential to ensure its good mechanical properties. For products that no longer need to be ground after heating, the continuous carburizing and quenching production line has achieved satisfactory heat treatment results.

7. Grinding processing

Grinding machine gear is mainly after heat treatment of the inner hole of the gear, end face, shaft diameter and other parts for finishing, improve dimensional accuracy, reduce shape tolerance.

The above is the grinding machine gear processing process, if you need to know more, you can contact us at any time!