Sheet part stamping/welding integrated manufacturing device

Abstract

The invention provides a sheet part stamping / welding integrated manufacturing device. The sheet part stamping / welding integrated manufacturing device comprises a concave die and a convex die; the concave die is fixed on a lower plate; the convex die is connected to an upper plate; the lower plate and the upper plate are connected together by use of a guide column and a guide sleeve; a plurality of first magnetorheological dampers are connected to the lower surface of a convex die fixed plate; a blank holder is connected to the lower ends of the first magnetorheological dampers; a plurality of second magnetorheological dampers are mounted on the lower part of the blank holder; the lower ends of the second magnetorheological dampers are connected with a spot-welding upper electrode; a plurality of stop-welding lower electrodes are mounted at the outer edge of the concave die; a first electromagnet is mounted in the central position of the concave die; more than two second electromagnets are mounted at the outer edge of the concave die; the mounting positions of the second electromagnets are all located in a circle determined on the basis of the center of the spot-welding lower electrode, and distributed alternately with the stop-welding lower electrodes. The sheet part stamping / welding integrated manufacturing device is integrated with stamping and welding; sheet parts machined by use of the device are low in resilience, low in consumed energy source and high in machining 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. technical background [0002] 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. [0003] 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 energy consu...

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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