The utility model belongs to the technical field of
grinding machines, and particularly relates to a
grinding machine adjusting device which comprises a driving motor, a connecting rod installed at the output end of the driving motor, a
rotating disc installed at one end of the connecting rod, a small motor installed on one side of the
rotating disc, a rod
barrel fixedly connected to one side of the small motor, a sliding rod installed at one end of the rod
barrel in a sliding mode, and an
extrusion plate fixedly connected to one end of the sliding rod. A sleeve is fixedly connected to one side of the L-shaped plate, an
electrode plate is assembled on the inner wall of one side of the sleeve, a movable rod is slidably mounted at one end of the sleeve, an
electrode slice is mounted at one end of the movable rod, and a spring is fixedly connected between the
electrode slice and the sleeve; when the
grinding wheel is adjusted, a sliding rod on the rear side of the appropriate
grinding wheel is adjusted, an
extrusion plate extends out, a driving motor is started, a connecting rod, a
rotating disc and the
extrusion plate are driven to rotate, and when the extrusion plate extrudes a movable rod, the movable rod slides in a sleeve to drive an electrode slice to make contact with an electrode plate, and a control panel closes the driving motor; and the grinding wheels with different roughness degrees are replaced, so that the
machining requirements of different workpieces are met.