Hot stamping mould with temperature measuring system

Abstract

The invention discloses a hot stamping mould with a temperature measuring system. The hot stamping mould comprises a concave mould, a convex mould, a plate support and positioning device, a mould built-in cooling system, a mould built-in temperature measuring system and an external temperature recording device, and is characterized in that: the concave mould and convex mould are provided with a molded surface corresponding to the workpiece shape respectively; cooling pipelines are staggered in the concave mould and convex mould, and connected with a water inlet and a water outlet through a diversion groove; and multiple thermocouples are pre-embedded on specific positions on the surface of the concave mould as well as on the surface and inside of the convex mould, and connected with the multi-channel temperature recording device. The hot stamping mould disclosed by the invention realizes full-period temperature monitoring, can directly judge and predict the product quality according to a temperature curve so as to eliminate unqualified products immediately, shortens the inspection cycle and lowers the production cost.

Description

technical field [0001] The invention relates to the technical field of hot stamping forming, in particular to a hot stamping die, and to a hot stamping die with a temperature measuring system. Background technique [0002] Hot stamping technology is to heat ultra-high-strength steel plate above the austenitization temperature and fully keep it warm, and quickly form it in the forming and quenching integrated mold to obtain high-strength martensitic structure, so as to obtain high forming precision and high strength. Hot Stamping. In the die, the steel plate undergoes deformation and heat treatment at the same time, and the two processes are mutually induced and alternately superimposed, so the hot stamping die is the key to realizing the hot stamping technology. Deformation is guaranteed by mold structure design, and key forming parameters such as plate deformation and thinning can be obtained through mold design and comparative measurement before and after sheet forming; m...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a mold that can solve the quenching problem of ultra-high-strength steel plate hot stamping forming, and can monitor and measure the temperature change rate of the mold and the sheet at the same time, so as to solve the problem that the existing hot stamping die is difficult to monitor and measure the mold and the plate. The temperature change rate of the material during the forming and quenching process, as well as the difficulty in judging and evaluating the completion rate of the microstructure transformation caused by the temperature change rate and the low-cost elimination of unqualified products and other technical problems

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