CNC intelligent four-axis reverse deflection small diameter cylinder roll bending forming equipment

Abstract

The invention discloses numerical control intelligent four-axis reverse-deflection small-diameter cylinder roll bending forming equipment, and belongs to the technical field of forging machine manufacturing. Two upper roller deflection compensation control devices are arranged at the two ends of an upper roller, loading force can be applied to the two ends of the upper roller, and reverse deflection deformation is formed, so that during roll bending forming of a small-diameter cylinder, the deflection phenomenon, caused by the reaction force of a plate material, of the upper roller is eliminated, the problems of cylinder expansion caused by deflection, serious tolerance exceeding of the cylinder straightness and the like are solved, and automatic and precise roll bending forming of the cylinder with the relatively large long-diameter ratio is achieved; in addition, relative stability can be kept when an effective working section of the upper roller bears loading force in any direction,and the structural stability and safety are improved; and meanwhile, automatic control is used in cooperation, and the quality and the automation level of the small-diameter cylinder is effectively improved.

Description

technical field [0001] The invention relates to the technical field of forging machinery manufacturing, and more specifically relates to numerically controlled intelligent four-axis anti-bending small-diameter cylinder roll bending forming equipment. Background technique [0002] As the carrier of cylindrical roll bending, the plate rolling machine has played a great role. However, when the traditional two-roller, three-roller or four-roller plate bending machine rolls and forms a cylinder with a large aspect ratio (the ratio of length to diameter) (such as an oil pipeline), the rigidity of the upper roll is not enough, resulting in very Difficult roll forming or extremely poor forming accuracy. [0003] Chinese patent CN107262566A discloses "A Kind of Numerical Control Reverse Curved Small Diameter Flexible Roll Bending Machine", which includes a forming machine body and a CNC console. The forming machine body includes a base, left and right frames, a numerical control sys...

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Problems solved by technology

[0005] However, Chinese patent CN107262566A and Chinese patent CN107262566A both proposed "rewinding curvature compensation" and "reverse deformation method" to solve the problem of insufficient rigidity of the upper roller

However, in the process of use, the upper rollers of the above two methods can only bear the force in the vertical direction, and the load bearing capacity for forces from other directions is poor, which limits the stability to a certain extent. At the same time, the traditional plate rolling machine cannot be accurately rolled and formed. Small-diameter (longer-diameter ratio) cylinders are prone to "bulging" phenomenon, and the straightness of the cylinder is seriously out of tolerance.

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