Positioning mechanism for grinding tile-shaped neodymium-iron-boron magnetic steel

The invention discloses a positioning mechanism for grinding tile-shaped neodymium-iron-boron magnetic steel. The positioning mechanism is characterized in that a first side surface positioning surface, a second side surface positioning surface and an arc-shaped positioning surface protruding upwards are arranged on a strip-shaped track; the arc-shaped positioning surface comprises a first arc-shaped surface, a second arc-shaped surface and a third arc-shaped surface which are sequentially connected from left to right; the height of the first arc-shaped surface is consistent from left to right; the height of the second arc-shaped surface is gradually increased from left to right; the height of the third arc-shaped surface is consistent from left to right; the height of the left end face ofthe second arc-shaped surface is smaller than the height of the first arc-shaped surface; the height of the right end face of the second arc-shaped surface is equal to the height of the third arc-shaped surface; and the leng