Pressure pin unloading device and method for die adjustment of hot die forging press

Abstract

The invention relates to high-end equipment manufacturing industry, in particular to a pressure pin unloading device and method for die adjustment of a hot die forging press. A clamping rod is locked and loosened through a locking air cylinder and a disc spring, and the state of the clamping rod is detected through a sensor; the pressure pin is lifted upwards in a balanced and stable mode by injecting a high-pressure gas into the friction face of a sliding block, the purpose of a relieving part of gravity and rotating torque of the pressure pin is achieved, and the purpose of unloading is achieved. The PLC is fully utilized to realize rotation of the pressure pin and locking and loosening detection and PLC control interlocking, so that the problems that a copper sleeve is quickly worn, and a bevel gear pair, a worm pair and a coupler spline are twisted off and damaged due to the fact that the rotation torque of the pressure pin is too large when the die-filling height of the sliding block is adjusted through hot die forging are solved; and the problem that driving accidents in a pressure pin locking state are possibly caused by the fact that a pressure pin clamping lock of the hot die forging press and an automatic production line of the hot die forging press is tight, loose and free of detection control is solved, and the transmission precision, reliability and production efficiency of the hot die forging press and the automatic production line of the hot die forging press are effectively improved.

Description

Technical field: [0001] The invention relates to the technical field of high-end equipment manufacturing industry, in particular to a pressure pin unloading device and method for mold adjustment of a hot forging press. Background technique: [0002] Hot die forging presses and their automated production lines, as representative products of key breakthroughs in the high-end equipment manufacturing industry, are increasingly widely used in China due to their advantages of "precision, high efficiency, green and energy saving". Such as Figure 8 As shown, it is a structural schematic diagram of the existing hot die forging press. When the height of the slider is adjusted, the motor drives the rolling friction of the eccentric part of the pressure pin through the cross universal coupling, the meshing of the bevel gear pair and the meshing of the worm pair, and then Realize the adjustment of the mold loading height of the slider. After adjustment, the balance piston rod rises upw...

AI Technical Summary

Problems solved by technology

[0003] However, since the pressure pin bears the nominal force, the slider, the upper mold and the connecting rod, the weight is relatively heavy, and the reaction force of the balance bar is superimposed, resulting in a very large static rotational moment of the driving pressure pin, which aggravates the rapid wear of the copper sleeve and the umbrella Damage to gears, worms, and couplings

In addition, because there is no detection and control device on the existing hot die forging press, there may even be a problem of driving under the locked state of the pressure pin, resulting in damage to the transmission connector, and may also cause the motor to burn out due to overload

In addition, in order to ensure the rotation of the pressure pin, a certain gap is reserved in the transmission structure of the pressure pin, which reduces the transmission accuracy of the hot touch forging press.

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