Guard bar upright straightener with uniform stress

• Main Authors: ZHANG HONGXIA, LI DAGANG, XU DEJIN
• Format: Patent
• Language: English
• Published: 14.01.2015
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The utility model discloses a guard bar upright straightener with uniform stress, which comprises a straightening mechanism, wherein the straightening mechanism comprises a straightening mold and a power mechanism, the power mechanism comprises a hydraulic oil cylinder provided with a piston rod and a thrust device, the thrust device is of a ball head structure and comprises an outer ball head and an inner ball head, an arc-shaped groove is formed in one face of the inner ball head, the other face, which is opposite to the arc-shaped groove, of the inner ball head is a plane, and the plane of the inner ball head is in contact with the straightening mold; the outer ball head is a sphere arranged in the arc-shaped groove of the inner ball head, the arc surface at one end of the outer ball head is in contact with the arc surface of the arc-shaped groove of the inner ball head, and the other end of the outer ball head is connected to the tail end of the piston rod. According to the guard bar upright straightener, forward stress of the straightening mold and the power mechanism is guaranteed, so that the straightening mold has uniform stress, the straightening effect is improved, meanwhile, the piston rod is protected from being damaged due to inclined force, and the service life of the straightener is prolonged.