Increasing the Efficiency of Gear Teeth Grinding by Copying Using Management of the Cutting Depth

When grinding gear teeth by copying, the profile cutting depth becomes uneven despite stable machining allowance. This reduces the efficiency of the process. The differences in the actual cutting depths for the involute tooth profile, while decreasing, are copied on the machined working surface of the tooth. Machining errors appear due to the technological inheritance of the process. The uneven cutting depth distribution along the tooth profile causes the uneven wear of the abrasive wheel and other shortcomings resulting from this. To improve grinding conditions and quality of the machined teeth it is important to ensure stability of the actual cutting depth by controlling influencing factors. Increasing the inclination of the tooth when grinding, creates conditions for a relatively uniform distribution of the profile cutting depth. A mathematical model is developed to determine the ordinal number of the tooth inclined in relation to the vertical plane of symmetry and providing efficient grinding along the whole profile. Based on the analysis of the proposed model, the authors show ways of ensuring relatively even distribution of the profile cutting depth.

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