Electric heating smooth progressive forming device for magnesium alloy thin-wall workpiece

Abstract

The invention provides an electric heating smooth progressive forming device for a magnesium alloy thin-wall workpiece. The electric heating smooth progressive forming device for the magnesium alloy thin-wall workpiece comprises a magnesium alloy thin-wall workpiece clamp, an electric heating system, a tool head converter, a frequency modulation vibration system and two mutually symmetrical support frames, wherein a plurality of tool heads with different diameters are arranged under the tool head converter; the magnesium alloy thin-wall workpiece clamp comprises an electrifying clamp and a plurality of common clamps; the magnesium alloy thin-wall workpiece is fixed on the support frames through the electrifying clamp and the plurality of common clamps; the electric heating system comprisesa first direct-current power supply; the first direct-current power supply is electrically connected with the electrifying clamp and the tool heads, and an electrifying loop is further formed by thefirst direct-current power supply and the magnesium alloy thin-wall workpiece and is used for electrically heating the magnesium alloy thin-wall workpiece; the frequency modulation vibration system comprises a controller, a vibration generator, a temperature controller, a temperature sensor and a second direct current power supply for supplying electricity to the frequency modulation vibration system; the temperature sensor, the temperature controller and the controller are sequentially and electrically connected; the controller is in control connection with the vibration generator; and the vibration generator is connected with the tool head converter.

Description

technical field [0001] The invention relates to the technical field of forming magnesium alloy thin-walled parts, in particular to an electric heating smooth progressive forming device for magnesium alloy thin-walled parts. Background technique [0002] Existing magnesium alloy thin-wall parts are mostly formed by heating furnace, and the forming tool head is single. For example, the Chinese invention patent with the notification number CN108435903A discloses a "thermal vibration combined progressive forming device for magnesium alloy thin-walled parts and its forming process", which uses a heating box to heat magnesium alloy thin-walled parts. It is difficult to ensure a constant and uniform temperature of the entire magnesium alloy thin-walled part. In addition, the size of the tool head is single, which is not conducive to the force of the magnesium alloy when the forming is continued after each incremental feed is completed, which will cause stress concentration and ulti...

AI Technical Summary

Problems solved by technology

[0002] Existing magnesium alloy thin-wall parts are mostly formed by heating furnace, and the forming tool head is single

For example, the Chinese invention patent with the notification number CN108435903A discloses a "thermal vibration combined progressive forming device for magnesium alloy thin-walled parts and its forming process", which uses a heating box to heat magnesium alloy thin-walled parts. It is difficult to ensure the temperature of the entire magnesium alloy thin-walled parts is constant and uniform. In addition, the size of the tool head is single, which is not conducive to the force of the magnesium alloy when the forming is continued after each incremental feed is completed, which will cause stress concentration and ultimately affect the forming quality.

Images