Stamping method for automobile crankshaft signal panel

Abstract

A stamping method for an automobile crankshaft signal panel includes the working procedures: blanking, punching, rolling grooves, stamping a large signal hole, stamping a small signal hole, deep drawing a flanging, trimming burrs, shaping, shearing sides and the like. By the aid of the stamping method for the automobile crankshaft signal panel, complicated panel bodies with multi-hole structures and cover parts can be manufactured by the aid of a stamping process, fewer working procedures are needed, time and labor are saved, automatic mass production is facilitated, production efficiency is improved, production cost is reduced, and the stamping method effectively solves the problems that when traditional thin-walled annular three-dimensional blanks are stamped, as irregular metal on the surfaces of materials flows, stress states at positions are inconsistent, deformation distribution is uneven, holes deform after complicated structural parts are deep-drawn, the panel bodies easily crack, wrinkle and deform and the like. The stamping method has the advantages of high material use ratio, short production cycle, small forming force, high part accuracy, simplicity in operation and control, small environmental pollution and the like, and can be applied to mass production of automobile parts.

Description

technical field [0001] The invention relates to a processing method for vehicle components, in particular to a stamping forming method for a crankshaft signal plate of an automobile. Background technique [0002] Existing thin-walled disc-shaped and cover-like parts, such as automobile crankshaft signal discs, are composed of the signal disc chassis and the side rings of the signal disc connected together, and the bottom surface of the disc is a perforated structure (including central positioning holes and installation hole), the side ring is distributed with large signal holes and small square signal holes with small spacing. Due to the height H of the side ring and the small distance D between the holes, it brings great difficulties to the processing. At present, there is no ideal processing method for this kind of thin-walled disc-shaped and cover parts at home and abroad. The traditional processing methods can only adopt: material preparation, blanking, stamping, deburri...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the irregular metal flow on the surface of the material during forming, the stress state is inconsistent everywhere, and the deformation distribution is uneven, which makes the signal plate easy to deform;

[0005] 2. Drilling is troublesome, turning processing is difficult to locate, the precision of parts is low, and defects such as wrinkles and cracks are prone to occur;

[0006] 3. There are many processes, cumbersome and complicated, low material utilization rate, long production cycle, low efficiency, high cost, and cannot meet the requirements of mass production;

[0007] 4. In order to overcome the above defects, in production practice, it is necessary to rely on the experience of the designer, through repeated mold testing and repair, and adjust the process parameters to remedy, but even so, the above defects still cannot be eliminated fundamentally

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