Voice coil manufacturing system, coil heating device and auxiliary unit

The invention discloses a voice coil manufacturing system, a coil heating device and an auxiliary unit. The auxiliary unit comprises a base, a pressing and fixing piece and a limiting piece. The baseis provided with a positioning column arranged in a protruding mode. The pressing and fixing piece is movably or detachably arranged above the base and matched with the base to form a matching cavity,the positioning column is inserted into the matching cavity, and the side wall of the matching cavity is matched with the positioning column to form an annular containing groove; the limiting piece is movably or detachably arranged between the pressing and fixing piece and the base, and the limiting piece is provided with a first abutting and pressing body matched with the positioning column to form an abutting and pressing structure. The auxiliary unit can store at least two coils transferred from a winding machine or other equipment, and positioning between the coils is reliable. The coil heating device utilizes the