A method of using a manual shape correction mold

Abstract

The invention provides a use method of a manual shape correction die. The manual shape correction die comprises a male die part, a female die part, a die holder, a connection base and a connection device. By arranging a sheet metal part in the male die part in a sleeved manner and applying a first external force to make a male die forming part conduct first rotary motion relative to a female die forming groove, the first external force can vertically transmit an external acting force required by punching to a bending deformation area of the sheet metal part through the first rotary motion, shape correction interference brought by the structure of the sheet metal part is avoided, and the generation of horizontal components is also avoided; and a series of good technical effects such as improvement of the production efficiency, reduction of the production cost, increase of the safety coefficient, further increase of the product percent of pass and elimination of noise pollution are further achieved, and the use method is very worthy of promotion in practical production.

Description

technical field [0001] The invention relates to the stamping field, in particular to a method for using a manual shape-calibrating die. Background technique [0002] Stamping processing is to form metal sheet blanks, profiles or pipes, etc. into sheet metal parts of the required shape according to the curvature or angle required by the design, and due to the material structure characteristics of the metal sheet itself, after the initial stamping, often there will be backlash. Due to the spring phenomenon, the sheet metal parts do not fully meet the design requirements. Therefore, in order to eliminate the springback, it is necessary to perform secondary or even multiple shape corrections on the sheet metal parts stamped and formed in the previous process. [0003] However, for some special-shaped sheet metal parts, such as sheet metal parts with mouth-shaped, barrel-shaped and other sealing structures, due to the structural characteristics of the sealing type sheet metal par...

AI Technical Summary

Problems solved by technology

[0005] When the generated horizontal component force acts on the sheet metal part, it cannot form an effective positioning of the sheet metal part, and it is easy to cause the deformation of the sheet metal part, and it is easy to cause the bending deformation area that has been corrected in other positions of the sheet metal part to recur Curvature and angle changes require repeated corrections by the operator, which greatly reduces production efficiency;

[0006] The oblique knocking method is very prone to misoperation, such as slippage of the special-shaped top block or incorrect knocking position of the hammer, resulting in the scrapping of sheet metal parts and safety accidents caused by the operator's own injury. The production qualification rate and operation The factor of safety is affected;

[0007] At the same time, in order to avoid the angle change of other bending deformation areas during correction, the operator must rely on the accumulation of production experience and his own operation skills to accurately control the angle and magnitude of the external force, so that the vertical component force can achieve the effect of shape correction and at the same time , the horizontal component force will not cause deformation to the sheet metal parts, which invisibly increases the requirements for the operator's operation skills (in actual operation, only technician-level workers with a certain number of years of production can be allowed to perform the shape correction work, and the number of years of production is not enough Apprentice-level workers cannot carry out this work), which increases production costs and cannot guarantee high production efficiency;

[0008] To sum up, for the sealing sheet metal parts, how to avoid the interference caused by its own structure, so that the external force required for the shape correction can act on the shape correction position vertically, and avoid the generation of horizontal component force, and then Avoiding a series of problems such as lower production efficiency, increased production cost, noise pollution, lower safety factor, and failure to further improve product qualification rate is an important problem that needs to be solved in the shape correction of sealing sheet metal parts.

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