Measurement of Helical Gear Using Coordinate Measuring Machine
| Autor: | Kazumasa Kawasaki, Zongxian Liu, Hisashi Tamura |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Pitch error
Engineering Engineering drawing business.industry Mechanical Engineering Mathematical analysis Tooth surface Value (computer science) Function (mathematics) Physics::Classical Physics Coordinate-measuring machine Industrial and Manufacturing Engineering Pressure angle Mechanics of Materials business Spiral |
| Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C. 63:572-578 |
| ISSN: | 1884-8354 0387-5024 |
| DOI: | 10.1299/kikaic.63.572 |
| Popis: | A method for inspecting a helical gear using a coordinate measuring machine (CMM) is proposed. In the method, the coordinates of a large number of points on the tooth surface of the gear are measured at random using a CMM. The method is based on the idea that the pitch error, profile error, pressure angle error, and spiral angle error can be calculated from the measured coordinates because the information on various errors of the gear is included in the measured coordinates. For calculation of each error, the tooth surface is described as a function of each error item and then the values for the items are estimated from all of the measured coordinates by the method of least squares. The difference between the estimated value for the item and the corresponding design value is the error of the item. From the results of experiments, it is clarified that each error of a helical gear can be estimated using a widespread CMM instead of a specially designed measuring machine for gears. |
| Databáze: | OpenAIRE |
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