Cutting and polishing integrated device for metal plate machining with double-surface polishing function

The invention discloses a cutting and polishing integrated device for metal plate machining with a double-surface polishing function. The device comprises a device outer shell, a working plate, a groove and a through groove; a support plate is mounted on the left side of the device outer shell; a first motor is fixed on the outer side of the support plate; cross bars are mounted under the first motor; rollers are arranged under the cross bars; the device outer shell is mounted on the outer side of the working plate; and a manual extension rod is fixed in the device outer shell. The cutting andpolishing integrated device for metal plate machining with the double-surface polishing function is provided with the cross bars and the rollers; three sets of the cross bars and the rollers are provided; the first motor drives a driving gear to rotate, so that the cross bars and the rollers are driven to preferably rotate; and through rotation of the three sets of the cross bars and the rollers,metal plate workpieces ar