A support mechanism for ultra-high-strength steel sheet thermoforming

Abstract

The invention relates to a panel veneer supporting mechanism for hot forming of a super-stiffness steel plate and belongs to the field of hot stamping forming of high-strength steel plates. The panel veneer supporting mechanism replaces panel veneer to be in direct contact with a die in an insulation point contact mode, heat losses are reduced as much as possible, magnetic force pins provide drawing force for the panel veneer to enable the bending degree of the panel veneer to be reduced, the forming precision is improved, and meanwhile the inclined portion of a guiding and positioning pin is used for fast and accurately guiding and positioning the panel veneer. The problem that the panel veneer is austenitized in a heating furnace in the hot forming process and then transferred onto the die, the heat is greatly lost before stamping, and therefore the temperature is not evenly distributed and finally the austenitized organization is not complete is solved. Meanwhile, due to the fact that the bending degree of the high-temperature panel veneer is large in stamping, the precision of the panel veneer is low after forming, the panel veneer is prevented from making contact with the die excessively early, and the problem that the bending degree of the high-temperature panel veneer is large is solved.

Description

technical field [0001] The patent of the invention relates to a support mechanism for hot-formed sheet material of ultra-high-strength steel plates, which belongs to the field of hot stamping forming of high-strength steel plates. Background technique [0002] With the shortage of international oil resources and the intensification of the greenhouse effect, global automobiles are beginning to move towards energy saving, emission reduction, safety and reliability. The fuel consumption of automobiles mainly depends on the displacement of the engine and the total quality of the automobile. To ensure the overall quality of the automobile Under the current situation, reducing the total mass of the car to reduce the output power of the car and thus reduce fuel consumption has become one of the effective ways to alleviate the energy crisis and reduce environmental pollution; lightweight materials can effectively reduce the weight of the car, such as high-strength steel, aluminum all...

AI Technical Summary

Problems solved by technology

[0005] The patent of this invention designs a support mechanism for ultra-high-strength steel sheet thermoforming, which belongs to the technical field of high-strength steel sheet thermoforming; the purpose of this invention is to solve the transfer of sheet metal after austenitization in the heating furnace during the thermoforming process To the mold, a large amount of heat is lost before stamping, resulting in uneven temperature distribution and incomplete austenitized structure. At the same time, due to the large degree of winding during stamping of high-temperature sheet metal, the precision after forming is low; in order to avoid sheet metal Premature contact with the mold reduces the problem of high-temperature sheet material winding. The invention designs a sheet material support mechanism so that the heated sheet material does not contact the mold before stamping, and reduces heat loss in the form of point contact , at the same time provide a stretching force to the sheet to reduce the winding degree of the sheet, thereby improving the accuracy

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