A three-station transfer equipment for superplastic forming

Abstract

The invention relates to three-station transfer equipment for superplastic forming. The equipment is composed of a thermal insulation box A, a superplastic forming press and a thermal insulation box B, and is characterized in that the two thermal insulation boxes comprise box bodies, shielding racks and guide rails A; the superplastic forming press comprises furnace door fences, an upper platform, a lower platform A, a lower platform B and guide rails B; the thermal insulation box A (or the thermal insulation box B) is arranged in front of (or behind) the superplastic forming press; each box body can get close to or get away from the press along the guide rails A and can form a closed heating chamber with the lower platform A (or the lower platform B); the lower platform A (or the lower platform B) can move into a lower platform station of the press along the guide rails B or can move out of the front side (or the rear side) of the press; and the lower platform A and the lower platform B are utilized for alternately forming parts at the lower platform station and moving out for part picking, the thermal insulation A (or the thermal insulation box B) is used in cooperation for heating and preserving heat, and continuous lower mould production can be achieved in a hot-replacement mode. By adoption of the three-station transfer equipment, heat energy loss of the heating chambers can be reduced, lower moulds can be replaced in a hot state, energy is saved, emission is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a three-station transfer equipment for superplastic forming. Background technique [0002] Superplastic forming is a sheet metal forming technology that uses low energy and low pressure to obtain large deformation. The forming temperature of titanium alloy parts in the aerospace field can reach 950-980 °C. Superplastic forming equipment is generally between the press slider and the lower platform, through the side wall enclosure and the front and rear furnace doors to form a closed heating chamber, and insert the heating platform and forming mold into heating elements (such as heating pipes, etc.) to provide heat. . In actual production, each production cycle needs to open the furnace door to pick up the parts and place the blanks. At this time, the heat energy in the heating chamber is quickly dissipated. After the completion of picking up / discharging the furnace door, the temperature in the heating chamber will drop by at le...

AI Technical Summary

Problems solved by technology

In actual production, each production cycle needs to open the furnace door to pick up the parts and place the blanks. At this time, the heat energy in the heating chamber is quickly lost. After the completion of picking up / discharging, the furnace door is closed, and the temperature in the heating chamber will drop by at least 100-200°C , it is necessary to wait for the heating chamber to heat up again before continuing to form parts. Because the heating chamber has a large space, the heating process is very slow; in addition, although the upper mold of some similar parts forming molds is the same, only the lower mold is different, even if only the lower mold is replaced. It is also necessary to wait for the heating chamber to cool down completely before proceeding, and then slowly heat up from a lower temperature for at least ten hours to reach the superplastic forming temperature, which will undoubtedly greatly reduce production efficiency and is not conducive to energy saving and emission reduction

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