Straight edge chamfering device for section steel

The utility model discloses a profile steel straight edge chamfering device, and relates to the technical field of profile steel chamfering, the profile steel straight edge chamfering device comprises an operation table, the operation table is provided with an open groove convenient for a support jacking plate to slide up and down, the two sides of the open groove are respectively provided with a round hole, and the round holes are communicated with the open groove. The bottoms of the two circular holes are each fixedly provided with a threaded sleeve through a bolt, the inner sides of the two threaded sleeves are each connected with a threaded rod through threads, and the outer sides of the two threaded rods are each sleeved with a spring. According to the utility model, the straight edge clamping plate moves to the other side of a plate and clamps the plate, the adjusting cylinder is started and the fixed plate is pulled according to the required chamfering length, so that the sliding plate is driven to mov