Crankshaft forge piece turnover device of die forging press

Abstract

The invention discloses a crankshaft forge piece turnover device of a die forging press. A V-shaped supporting block is arranged on an upper platen of a rack; a cylinder is disposed on a lower platen, and a piston rod of the cylinder is connected with a top plate; an ejection V-shaped block is arranged on the top plate; guide columns and guide sleeves are symmetrically arranged on the two sides of the cylinder; and inductive switches, travel switches and electromagnetic directional valves on the cylinder air inlet pipe and the cylinder air outlet pipe are all connected with the operating platform. The device has the advantages that by adopting the device for overturning the hot crankshaft forge piece, the crankshaft can be efficiently and accurately overturned to the required position, the low efficiency of manual overturning operation is avoided, the operation safety is improved, the labor intensity of an operator is reduced, the working efficiency is improved, and it is guaranteed that a robot stably and accurately grabs the hot forge piece from the overturning frame and puts the forge piece into a correction cavity for shaping, so that the shaping quality and the size precision of the forge piece are improved.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a crankshaft positioning device. Background technique [0002] The production efficiency of large-scale die forging presses is high, the quality and dimensional accuracy of forgings produced are high, and the consistency is good; with the increasingly stringent quality requirements for crankshafts in the domestic and foreign main engine markets, the die forging of locomotive crankshafts is gradually being replaced by large-scale hot die forging pressure. machine production line instead. The production cycle of large die forging press forgings is as fast as 85-130 seconds per piece. The temperature of hot forgings after trimming is above 1000°C. The transportation of hot forgings between trimming and correction processes is quickly grasped by the respective robots. Take hot forgings; at the same time, on the one hand, in order to avoid deformation and bending of hot forgings, the flange ...

AI Technical Summary

Problems solved by technology

The production cycle of large die forging press forgings is as fast as 85-130 seconds per piece. The temperature of hot forgings after trimming is above 1000°C. The transportation of hot forgings between trimming and correction processes is quickly grasped by the respective robots. Take hot forgings; at the same time, on the one hand, in order to avoid deformation and bending of hot forgings, the flange end of the crankshaft is suspended for air cooling after correction, and the crankshaft correction cavity is arranged at 180° to the direction of the trimming mold cavity. On the other hand, after trimming, forgings need to print identifications such as serial numbers. Therefore, it is necessary to turn the crankshaft hot forgings to the position where the crankshaft is facing upwards between the trimming and calibration processes; Tool turning, due to the high temperature of the forging in the hot state, the operator needs to use the clamping tool to clamp the journal to turn over, the safety factor is low, the turning direction consistency is poor, and the manual speed is slow, which affects the accuracy of the robot in the calibration process Grab the forging and put it into the cavity of the calibration mold, so that the hot forging does not match the cavity of the calibration mold, which affects the shaping of the forging; at the same time, the inaccurate manual flip position also affects the quality of marking

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