| 摘要 |
A measuring and sensing head (6, 30, 50) is moved under computer control in engagement with right and left flanks of gears. These may be internal or external gears. The head is moved in a tangential direction with respect to the base circle of the gear and, in accordance with the invention, additionally in a radial direction with respect to the axis (3) of the gear (2), in such a manner that, when setting right and left flanks, respectively, of a gear tooth, the paths of the measuring and sensing head form straight lines which intersect at intersection points (43, 53) outside of the base circle (32, 52) of the gear. The movement of the sensing head is controlled by a computer (C) in accordance with an involute mathematical function following the involute curve of gear teeth. Other curves, similar to an involute curve, may be controlled by the computer. The range of movement in tangential direction with respect to the gear is thereby substantially reduced and interference of the measuring or sensing head with an edge of the tooth is prevented.
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