Transportable compact correction device in particular for polishing calendering cylinders

A corrective grinding device (1) intended to machine, by abrasion, a surface to be ground (2A) of a part of revolution (2) which has a main central axis (X2) and which is mounted with the ability to rotate on a frame (3) about the main central axis (X2), the device comprising:

• a base (5) which is provided with coupling members (6, 7, 8) making it possible to fix the base (5) on the frame (3);
• a machining head (10) which comprises an abrasive belt (11) which is guided along a belt path (12) defined by a plurality of wheels (13, 14, 15) carried by the machining head (10), the plurality of wheels including an applicator wheel (13) intended to press the abrasive belt (11) against the surface to be ground (2A) in a penetration direction (Y10) which is transverse to the main central axis (X2), the machining head (10) also comprising a belt-driving motor (16) of which a stator (17) is fixed to the machining head (10) and which is arranged to drive the abrasive belt (11) in motion along the belt path (12);
• and
• a head movement system (23) which makes it possible to move the machining head (10) on the base (5) in a feed direction (X10) which is transverse to the penetration direction (Y10), so that the machining head (10) can, along the main central axis (X2), cover a useful feed stroke (L10),
• wherein, in orthogonal projection in a base plane (P10) defined by the feed direction (X10) and the penetration direction (Y10), a projected surface of the abrasive belt (11) which is in the belt path (12) overlaps a projected surface of the stator (17) of the belt-driving motor (16).