Bending machine of medium thin wall diameter

Bending machine of medium thin wall diameter relates to the structure of bending machine, and including the horizontal stand, at two active roller seats of the top of horizontal stand fixed connectionand a stand, two active roller seat symmetries set up the left and right sides at the stand, all support the active roller through the driving shaft on every active roller seat, two driving shafts lie in the coplanar, and two driving shafts are connected with a set of drive arrangement, connect lifting unit on the stand, lifting unit's lower extreme passes through the universal connection head and connects the return idler seat, supports the return idler through the driven shaft on the return idler seat, and the return idler is located the top of two active rollers, driven shaft and two driving shaft parallel arrangement, the return idler is the same with two active roller structures, all includes wheel body, radially sets up the arc recess on wheel body's outer periphery. The utility model discloses surpass phi