Device and method for determining a total pitch deviation of an annular product
US11274941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Nov 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2218/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A total pitch deviation measurement device that determines a total pitch deviation of an annular product having at least a magnetic ring. The device providing a frame; a pallet conveyor fixed to the frame and designed to support the rotor positioning bearing unit; a spindle unit mounted in translation compared to the frame along a vertical axis, the spindle unit including a spindle shaft, a motor driving the spindle shaft, and an encoder connected to the spindle shaft; the spindle shaft having a free lower end having a tapered shape that fits into a bore of the annular product; a sensor fixed to the frame that measures a magnetic field signal at a position of the magnetic ring and transmits the signal measured to an control unit that determines the total pitch deviation of the annular product. Also, a method for carrying out the function of the intended device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.