The invention relates to the technical field of band saw blade
machining, in particular to a band saw blade rough
grinding device which comprises a
workbench and double-shaft moving machines symmetrically installed on the
workbench,
grinding machines are installed on
moving parts of the double-shaft moving machines and used for
grinding a
welding seam of a band saw blade, and an electric clamp located between the grinding machines is installed on the
workbench. The grinding machines on the upper side and the lower side are started firstly to
grind the two sides of a weld joint of the band saw blade, after the two sides of the weld joint are ground, the electric clamp is started to loosen the band saw blade, the band saw blade is pulled to rotate by 180 degrees, and the
welding position of the band saw blade makes contact with the
abrasive belt; then an electric screw is started to enable a triangular plate to move downwards to limit the front side of the back grinding position of the band saw blade, then a driving motor is started to enable an
abrasive belt to rotate to
grind the back of the band saw blade, in this way, the phenomenon that the band saw blade moves forwards to affect the grinding effect can be prevented, and the band saw blade can be prevented from being damaged; and therefore, the grinding effect and safety are improved.