| Autor: |
Zhang, Cheng, Liang, Guo Xing, Lv, Ming, Wang, Shi Ying |
| Zdroj: |
Key Engineering Materials; August 2014, Vol. 620 Issue: 1 p225-233, 9p |
| Abstrakt: |
Gear honing processing is a kind of processing method which belongs to the point-contact generating gear finishing. Its movement form is equivalent to a pair of gears transmission which the surface of the gear-honing-tool is adhered a layer of grinding grain. When it works in rolling processing, the contact-point between the workpiece and gear-honing-tool is moving. Then the moving point becomes a line in the space, and with the gear-honing-tool being in axial play, a standard flank of tooth is finished. Using the gear meshing principle, kinematics model of relative sliding velocity in the contact-point between the workpiece and tools is established, based on which the contact-line equation. and acceleration equation. at the contact-point are derived. The contact-line is solved in a given parameters of the workpiece and tool in MATLAB. The theoretical derivation and experimental results show that the speed in diverse along the direction of the tooth depth is the main reason for the roughness value and surface texture of workpiece. The acceleration of contact-line at the tooth flank is different, and it is leading reason that the processed workpiece gears appear profile distortion. Finally, the testing system is established for researching honing gear process. It is showed in the results that the acceleration difference can lead to the CBN abrasive falling away from gear honing tool, and even the "anti-cutting" phenomenon. |
| Databáze: |
Supplemental Index |
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