Grinding machine for bearing rings

Abstract

A bearing ring grinding machine comprising a grinding unit arranged to provide machining quality with micron-size tolerances and a reduced grinding cycle period. To this end, the grinding unit (13) comprises a fixed plate (13a) on which are mounted a loader (14c) and a sliding carriage (20) arranged to move horizontally in the direction of the double arrow A. A sliding carriage (20) stopper (21),in the loader (14c), holds the inferior ring (100) applied against the plate (13a) and maintained between two lateral channels. The fixed plate (13a) has a passage opening for a rotatable spindle (22)equipped with a magnetizable socket (23) to support a ring during machining and two adjustable support stops (24, 25) for automatically positioning the rotating ring on the socket (23). At first, thesliding carriage (20) releases the passage for a ring (100) to be grinded toward the magnetizable socket (23) of the rotatable spindle (22), through a magnetic carrier tape (14b) in order to, at a second moment, maintain the ring (100) against the two stops (24, 25) during their machining and in order to, at a third moment, transfer the grinded ring (100) from the support position toward an automatic discharge device (15).

Description

technical field [0001] [01] The present invention relates to a machine tool for grinding bearing rings, comprising a machine frame, an automatic feeding device, a grinding unit, an automatic unloading device for grinding bearing rings, an electrical cabinet and a control unit The grinding unit comprises: a rotating spindle equipped with a magnetizable sleeve for supporting the ferrule during machining, and two adjustable support stops for automatically positioning the rotating ferrule on the sleeve on the barrel. Background technique [0002] [02] Bearing ring grinding machines, either ball bearings or roller bearings, must work in a fully automatic manner and are therefore usually dedicated to this function. Their equipment conforms to the dimensions of the relevant bearings and the individual specifications of the bearings correspond to certain equipment. The decisive parameters required for bearing ring grinding are cycle time, machining accuracy and the duration of the...

AI Technical Summary

Problems solved by technology

Grinding wheels wear very quickly, and in some cases, research into reducing cycle times has resulted in increased part movement speeds, which can lead to too sudden contact between the part to be machined and the machined wheel, resulting in premature wear, Even the damage of the grinding wheel

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