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Hydraulic parallel driving system for fore-and-aft lifting of forging manipulator

A technology for forging manipulators and hydraulic systems, applied in forging/pressing/hammer devices, forging/pressing/hammering machinery, mechanical equipment, etc., to achieve good motion stability and avoid changes in mechanical stress

Inactive Publication Date: 2011-07-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a parallel drive hydraulic system for the front and rear lifts of the forging manipulator, with the purpose of solving the synchronous drive problem of the front and rear lift systems of the existing forging manipulator

Method used

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  • Hydraulic parallel driving system for fore-and-aft lifting of forging manipulator
  • Hydraulic parallel driving system for fore-and-aft lifting of forging manipulator

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Embodiment Construction

[0017] figure 1 A forging manipulator is given a front and rear lifting parallel drive hydraulic system, which consists of asymmetric proportional servo valve 2-1, symmetrical proportional servo valve 2-2, upper cavity safety valve 3-1, lower cavity safety valve 3-2, upper cavity Chamber check valve 4-1, lower chamber check valve 4-2, upper chamber stop valve 5-1, lower chamber stop valve 5-2, left rear lift cylinder 6-1, right rear lift cylinder 6-2, left front Lift cylinder 6-3, right front lift cylinder 6-4 form.

[0018] The P port of the asymmetric proportional servo valve 2-1 is respectively connected to the oil supply port 1 and the P port of the symmetrical proportional servo valve 2-2; the A port of the asymmetrical proportional servo valve 2-1 is respectively connected to the symmetrical proportional servo valve 2- A port of 2, lower chamber safety valve 3-2 inlet, lower chamber one-way valve 4-2 outlet, lower chamber stop valve 5-2 inlet, left front lifting cylinde...

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Abstract

The invention discloses a hydraulic parallel driving system for fore-and-aft lifting of a forging manipulator. The P port of a nonsymmetrical proportional servo valve (2-1) is respectively connected with an oil supply port (1) of an oil source and the P port of a symmetrical proportional servo valve (2-2); the A port of the nonsymmetrical proportional servo valve (2-1) is respectively connected with the A port of the symmetrical proportional servo valve (2-2), the inlet of a lower cavity safety valve (3-2) and the like; the B port of the nonsymmetrical proportional servo valve (2-1) is respectively connected with the inlet of an upper cavity safety valve (3-1), the outlet of an upper cavity one-way valve (4-1), the inlet of an upper cavity cut-off valve (5-1) and the like; the B port of the symmetrical proportional servo valve (2-2) is plugged; an oil return port (7) of the oil source is respectively connected with the T port of the nonsymmetrical proportional servo valve (2-1), the T port of the symmetrical proportional servo valve (2-2), and the like; and the top ends of the piston rods of four lift cylinders are mechanically consolidated. The hydraulic parallel driving system disclosed by the invention can solve the problem of synchronous driving of fore-and-aft lifting systems of the existing forging manipulator.

Description

technical field [0001] The invention relates to a multi-cylinder parallel drive hydraulic system, in particular to a forward and backward lifting parallel drive hydraulic system of a forging manipulator. Background technique [0002] The free forging forging manipulator is used to grab the forging workpiece and perform certain actions, and it is used in conjunction with the press to improve forging efficiency. Generally speaking, the manipulator can realize the vertical, horizontal, front and rear, pitch, side swing and other movements of the forged workpiece. Among them, for the manipulator whose front and rear lifting systems are consolidated and driven in parallel, the lifting system controls the vertical lifting of the workpiece 1. The pitching system controls the pitching motion of the workpiece (refer to the Chinese invention patent whose application number is 200910055222.2). [0003] At present, the lifting hydraulic system of the manipulator with the above structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/10F15B11/22
Inventor 周华侯交义傅新杨华勇
Owner ZHEJIANG UNIV
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