Metal plate bending and locating method

Abstract

The invention discloses a metal plate bending and locating method and belongs to the technical field of location methods. The principle of the method includes utilizing at least two markers on a rotating device to move synchronously in the same direction with different walking displacements, making corresponding marks on the edge of a plate material piece corresponding to the markers and utilizing the identical method to make marks on the opposite side on the marked edge. A connection line of the marks on the two opposite sides is a press forming line. The metal plate bending and locating method changes the existing lateral locating method into a linear locating method, overcomes the shortcomings such as torsion, single side and excursion caused by error accumulation in the press forming process of the plate material piece, and conventionally resolves the problems of complex location adjustment, low efficiency and the like. The metal plate bending and locating method is low in use cost, remarkable in effect and strong in practicability.

Description

technical field [0001] The invention relates to the technical field of positioning methods, and is mainly applicable to sheet metal bending positioning methods. Background technique [0002] In my country's railway wagon manufacturing industry, there are a large number of bending and forming parts with high precision requirements; these parts are generally processed into flat blanks of a certain size by shearing machines or plasma cutting machines during production, and then molded or folded. The bending machine is bent and formed; therefore, factors such as the accuracy of the blanking equipment, the accuracy of the mold, and the accuracy of positioning will cause errors in the size of the accessories. One of the situations is that when the precision of the mold is stable and the bending adopts the conventional positioning method, the errors caused by the equipment accuracy and manual cutting operation during blanking will accumulate on the bent product, resulting in distort...

AI Technical Summary

Problems solved by technology

[0002] In my country's railway wagon manufacturing industry, there are a large number of bending and forming parts with high precision requirements; these parts are generally processed into flat blanks of a certain size by shearing machines or plasma cutting machines during production, and then molded or folded. The bending machine is bent and formed; therefore, the accuracy of the blanking equipment, the accuracy of the mold, the positioning accuracy and other factors will lead to errors in the size of the accessories

One of the situations is that when the precision of the mold is stable and the bending adopts the conventional positioning method, the errors caused by the equipment accuracy and manual cutting operation during blanking will accumulate on the bent product, resulting in distortion on the bent product , unilateral, offset and other defects; while using the ordinary adjustable bending positioning method, the positioning adjustment work will be complicated and inefficient due to the uncertainty of the previous process error

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