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Full-closed loop electro-hydraulic servo plate bending machine

An electro-hydraulic servo and bending machine technology, applied in the field of bending machine devices, can solve the problems of energy waste, hydraulic oil overflow, etc., and achieve the effects of reducing energy consumption, reducing overflow, and reducing friction coefficient

Active Publication Date: 2015-02-04
SHANGHAI ACL CNC MACHINE TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the current electro-hydraulic CNC bending machines adopt the hydraulic control method of quantitative pump and PQ valve. It is an open-loop high-pressure overflow control method. of hydraulic oil is overflowed, causing energy waste

Method used

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Embodiment Construction

[0021] 1. The main structure and working principle of the fully closed-loop electro-hydraulic servo sheet metal bending machine

[0022] Such as Figure 1~2 As shown, the present invention includes: a fully closed-loop electro-hydraulic servo bending machine, including a frame 11, a main oil cylinder 13 located on both sides above the frame 11, a vertical plate 15 located at the lower part of the frame, and a vertical plate 15 located on the upper side A square mechanical deflection compensation workbench 14, a slide block 12 positioned above the vertical plate 15, and a numerical control system 17 located on the frame 11; also includes a hydraulic system 21, an electrical system 22 and a servo motor 18 connected to the numerical control system 17, And the oil pump 19 connected with the servo motor 18; the hydraulic system 21 is connected with the oil pump 19 and the oil cylinder 13; the cylinder piston rod of the oil cylinder 13 is connected with the slider 12;

[0023] When...

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Abstract

The invention relates to a full-closed loop electro-hydraulic servo plate bending machine which comprises a frame, master cylinders, a vertical plate, a mechanical deflection compensating workbench, a slide block and a numerical control system, wherein the master cylinders are located on the two sides above the frame; the vertical plate is located on the lower part of the frame; the mechanical deflection compensating workbench is located on a lateral side of the upper part of the vertical plate; the slide block is located above the vertical plate; the numerical control system is located on the frame; the full-closed loop electro-hydraulic servo plate bending machine is characterized by further comprising a hydraulic system and a servo motor which are connected with the numerical control system, and an oil pump which is connected with the servo motor; the hydraulic system is connected with the oil pump and the cylinder; a cylinder piston rod of the cylinder is connected with the slide block; a pressure value is closed-loop fed back to a servo driver by a machine tool; the system pressure is controlled by adjusting the rotating speed of the oil pump motor by the servo driver, so that the full-closed loop control is realized. The pressure of the hydraulic system is accurately closed-loop controlled by a servo system provided by the invention, so that the stability of the hydraulic pressure is ensured, the flow of the whole hydraulic system is subjected to accurate closed-loop control, and the overflow quantity is reduced.

Description

technical field [0001] The invention relates to a bending machine device, in particular to a fully closed-loop electro-hydraulic servo plate bending machine. Background technique [0002] For sheet metal parts manufacturers, power consumption is the main part of their production costs. The power consumption of the hydraulic sheet metal bending machine is mainly composed of ordinary three-phase asynchronous motor + quantitative pump, and the power consumption of the main motor accounts for about 70% of the power consumption of the whole bending machine, so reducing power consumption is the key to the bending machine The key to energy saving. [0003] Most of the current electro-hydraulic CNC bending machines adopt the hydraulic control method of quantitative pump and PQ valve. It is an open-loop high-pressure overflow control method. The hydraulic oil is overflowed, causing energy waste. Contents of the invention [0004] The purpose of the present invention is to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/00
CPCB21D5/004B21D5/0245
Inventor 陈文进王军军徐凯陈绪浩
Owner SHANGHAI ACL CNC MACHINE TOOL
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