Gear tester
AssigneeMaag Gear-Wheel & Machine Company Limited
InventorPeter Bloch
Life of this patent
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Abstract
A gear tooth profile testing apparatus has a pair of displaceable measuring devices, one of which is movably mounted on an adjustable base plate and has the other device movably mounted on it. A probe mounted on said other device has biassing means urging it against the profile under test. Drive means displace one of the devices, which transmits signals of relative movements between the two devices to a computer. The computer receives from the other device signals of its movements relative to the base plate. The computer compares these measurements of probe movement with reference values to evaluate deviations in the measured profile.
Claims7
Gear tooth profile testing apparatus comprising a probe for engagement with a gear tooth flank, a first displaceable mounting on which the probe is securable and a second displaceable mounting on which said first mounting is supported, and a base on which said second mounting is supported, the first and second mountings having different directions of displacement, biassing means connected to at least one of said mountings for holding the probe against said tooth flank and driving means for displacement of one of said mountings and thereby for movement of the probe along said flank, respective measuring devices sensing the displacement of the two mountings for measuring respective components of the relative movement between the probe and the tooth flank, and means for transmitting respective series of measurement signals from said devices, one of said series of signals representing the relative movement between the two mountings with the tooth flank stationary and the other of said series of signals representing the movement of one of the mountings relative to a fixed point, comparison means receiving said measurement signals and means for supplying reference signal values to said comparison means, said comparison means determining the difference between the reference signal values and the actual signal values from the measuring devices.
Dependencies are inferred from the claim text.