An eccentric gear split crankshaft stroke adjustable servo press

Abstract

An eccentric gear split crankshaft stroke-adjustable servo press adopts a bilateral layout and is driven by two sets of symmetrical transmission systems. The unilateral transmission system includes a servo motor. The servo motor drives the first pinion to rotate, and the first pinion It meshes with the first large gear and drives it to rotate, so that the second pinion gear rotates, the second pinion drives the eccentric gear to rotate, and the eccentric gear drives the second transmission shaft to rotate, so that the connecting rod does reciprocating swing work, and drives the slider to do The up and down reciprocating linear motion completes the forging work. The different eccentric holes on the eccentric gear make the stroke length of the slider of the servo press adjustable, which broadens the process range of the servo press. The split crankshaft reduces the production cost of the crankshaft and reduces the The stress concentration at the transition of the crankshaft increases the bearing capacity of the press, reduces the moment of inertia of the rotating part, and reduces the size of the transmission part of the press.

Description

technical field [0001] The invention belongs to the technical field of presses for forging equipment, and in particular relates to an eccentric gear split crankshaft stroke-adjustable servo press. Background technique [0002] It is very troublesome to adjust the stroke length of the slider of the traditional mechanical press, and the stroke length of the slider of many mechanical presses is not even adjustable, which brings a lot of inconvenience to the actual forging work. When forging different workpieces, it is necessary to use different slider stroke lengths according to actual process requirements. Traditional mechanical presses are limited in process adaptability due to the inconvenience of slider stroke adjustment. [0003] The crankshaft on the traditional mechanical press is generally forged as a whole. In order to manufacture crankshafts of different sizes, it is necessary to manufacture molds of different specifications, resulting in very high cost. Moreover, thi...

AI Technical Summary

Problems solved by technology

[0002] It is very troublesome to adjust the stroke length of the slider of the traditional mechanical press, and the stroke length of the slider of many mechanical presses is not even adjustable, which brings a lot of inconvenience to the actual forging work

When forging different workpieces, it is necessary to use different slider stroke lengths according to the actual process requirements. Traditional mechanical presses are limited in process adaptability due to the inconvenience of slider stroke adjustment.

[0003] The crankshaft on the traditional mechanical press is generally forged as a whole. In order to manufacture crankshafts of different sizes, it is necessary to manufacture molds of different specifications, resulting in very high cost. Moreover, this integral crankshaft is prone to stress concentration at the transition point, which affects the use of the crankshaft. life

[0004] In addition, when the press adopts an ordinary gear reduction method (the first-stage gear reduction ratio is at most 7 to 9), the gears need to be made very large, resulting in a large volume, heavy weight, large inertia, and poor action sensitivity. Production High cost, large-scale gear cutting and processing costs are high, transmission efficiency is low, material consumption is large, energy waste is large, and it is not conducive to assembly and transportation, etc.

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