Multi-station continuous hot stamping production line and method

Abstract

A production line sequentially includes a feeding platform, a feeding robot, a pressing unit, a conveying robot, a quenching device, a discharging robot, and a conveyor belt. The pressing unit includes a heating device, a die device, and at least one press used for mounting the die device. The heating device is used for wholly or partially heating the preformed blank to produce a hot blank, and the die device is used for stamping the hot blank, holding the hot blank at a certain pressure, and shaving and punching the hot blank, so as to produce a hot stamped part. The production line can continuously achieve rapid heating, stamping, pressure holding, shaving, punching, and quenching. Heating efficiency is improved, and a transferring process before stamping the hot blank is avoided.

Description

FIELD OF THE INVENTION[0001]The present disclosure relates generally to the technical field of hot stamping, and in particular, to a multi-station continuous hot stamping production line and a method of operating the same.BACKGROUND OF THE INVENTION[0002]Hot stamping is a new technology for forming light-weight and high-strength parts. It has advantages of being able to produce stamped parts having small springback ratio, good fittability and high dimensional accuracy. Use of stamped car parts made of light-weight and high-strength sheet materials can help to improve safety performance of cars and reduce weight of cars, thereby contributing to achievement of light weight of cars.[0003]In a traditional hot stamping process, a preformed blank made of a light-weight and high-strength sheet material is first heated to a hot stamping temperature; then the heated blank is rapidly transferred to a die, immediately stamped, held at a pressure, and quenched to complete a structural transform...

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