Importance

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Abstract

There is provided a wheel lathe in which the wheelset center of wheels and a spindle center can be aligned in a simple structure without using a centering part for synchronous lowering from above, and the horizontal distance from the wheelset center is measured at the position of a point along the circumference of the wheel and away from the topmost point of the wheel, such as of a point on an external edge, by a displacement meter having a fixed height, whereby the appropriate required lifting amount (lifter-required displacement) is automatically computed and the wheels are raised to allow the spindle to be appropriately fixed on a consistent basis, the device to be simplified and otherwise improved, and significant reductions to be attained in assembly and adjustment man-hours. The wheel lathe includes a lifter control device (4) used to control the operation of a lifter device (3) for raising the wheel (1) and provided with external-edge position meters (5) for measuring a point on the external edge of the wheel (1) and a lifter-required displacement calculator (6) for computing the lifter-required displacement (H) from the measured value and a known dimensional value.

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First Claim