Importance

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Abstract

The apparatus comprises a saw blade holder (24), a grinding slide (30) which carries a profiled grinding wheel (38) and is movable to and fro in a strokewise manner with respect to the saw blade holder (24), and a feed slide (40). At the feed slide (40) a feed finger (48) can be moved from an inoperative position into a driving position in which it engages after a return motion of the feed slide (40) behind a tooth (12) of a saw blade (10) driving same during the next feed motion. The feed finger (48) can be rendered stationary in its inoperative position during dressing intervals. A dressing tool (50) is arranged at the feed slide (40) in such a manner that it can be moved in the dressing intervals from an inoperative position into a dressing position. The grinding slide (30) and the feed slide (40) are assigned a control system which can be switched from a grinding mode in which the motions of the two slides are coordinated corresponding to the profile of the saw toothing to a dressing mode in which the motions of the two slides are coordinated corresponding to the profile of the grinding wheel (38). This simplifies the dressing operation of the grinding wheel (38) and shortens the time required for each dressing operation.

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First Claim