A punching/welding integrated manufacturing device for plate parts

Abstract

An integrated stamping / welding manufacturing device for plate parts, including a die and a punch, the die is fixed on the lower die, the punch is connected to the upper die, the lower die and the upper die are connected together through guide posts and guide sleeves, the punch A plurality of first magnetorheological dampers are connected to the lower surface of the mold fixing plate, and the lower end of the first magnetorheological dampers is connected to a binder ring, and the lower part of the binder ring is equipped with a plurality of second magnetorheological dampers. The lower end of the variable damper is connected to the spot welding upper electrode; the outer edge of the die is equipped with a plurality of spot welding lower electrodes, the center of the die is equipped with a first electromagnet, and more than two electromagnets are installed on the outer edge of the die. The second electromagnet, the installation position of the second electromagnet is all on the circle determined on the basis of the center of the spot welding lower electrode, and forms a phase distribution with the spot welding lower electrode. The present invention integrates punching / welding. The plate parts processed by the device have small springback, less energy consumption and high processing efficiency.

Description

technical field [0001] The invention relates to a high-strength plate forming and connecting device, in particular to a punching / welding integrated manufacturing device for plate parts. [0002] technical background [0003] High-strength plates are widely used in the automotive industry. The use of high-strength plates can reduce the weight of the car itself and realize the lightweight of the car, which is crucial to the development of the car. [0004] At present, the hot stamping method is mainly used in the industry to form high-strength steel plates. This method first heats the plate to the austenitic state, and then completes quenching in a mold with cooling channels to obtain the martensitic state. Ultra-high-strength steel parts. The high-strength steel plate after hot stamping has the characteristics of good plasticity, high forming limit and small springback. However, this method first heats the material and then cools it, which not only leads to huge waste of ener...

AI Technical Summary

Problems solved by technology

However, the main problem is that the springback of the sheet is difficult to control. Usually, the method of mold surface compensation can be used to control the forming accuracy, but there are differences in different batches of sheets, which increases the difficulty of springback control.

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