Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates

Abstract

The invention relates to a die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates and comprises the steps of: in dependence on the die forging weight of a petroleum drilling machine elevator movable wing plate, selecting a rectangular billet with a weight 15 percentage more than that of the forging, placing the billet to a furnace to heat to a starting forging temperature; placing the billet to a shaping mode cavity of a hammer forging die, forging once or more than once until the up and down mold surfaces are closed; placing the forged and shaped forging to the female die cutting edge of a cut off die, starting a trimming press, placing a punch on the forging to be cut, pushing the forging to be cut into the female die to resect flashes; the resected forging falling into the die holder bottom and being pushed into material frames. The invention has the advantages that the forging die and cut off die designed can reduce the initial allowance of die forgings to a weight only about 15.4 percent of that of the forgings, which can substantially save material fee, labour and energy; besides the invention has a novel, simple and unique structure design and a good die forging effect.

Description

technical field [0001] The invention relates to a die forging process specially used for manufacturing the forging of the movable wing plate of an elevator of an oil drilling rig, and belongs to the field of die forging process manufacturing. Background technique [0002] <Wing plate> is an important part of the oil drilling rig elevator parts, forged from alloy structural steel (42CrMo) (see attached Figure 3-1~3-3 ). Due to the particularity and complexity of the part structure, the traditional forging process only simplifies the part into a simple hexahedron. Its shortcoming is that the forging weight of a part weighing about 55 kg after machining is as high as 149 kg ( See attached Figure 4-1~4-2 ), the weight of the forging blank is 2.7 times the weight of the part, not only the utilization rate of raw materials is low, but also the machining efficiency is low and the energy consumption is high. Contents of the invention [0003] Design purpose: To avoid the...

AI Technical Summary

Problems solved by technology

Due to the particularity and complexity of the part structure, the traditional forging process only simplifies the part into a simple hexahedron. Its shortcoming is that the forging weight of a part weighing about 55 kg after machining is as high as 149 kg ( See attached Figure 4-1~4-2 ), the weight of the forging blank is 2.7 times the weight of the part, not only the utilization rate of raw materials is low, but also the machining efficiency is low and the energy consumption is high

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