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Three-axis linkage control device and method for hydraulic system of powder press

A technology of hydraulic system and powder press, which is applied in the field of hydraulic control and can solve problems such as low precision and inability to run multiple axes simultaneously

Active Publication Date: 2017-06-30
QIANDONG RARE EARTH GRP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a three-axis linkage control device and method for the hydraulic system of a powder press to solve the problem of low precision and simultaneous operation of multiple axes

Method used

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  • Three-axis linkage control device and method for hydraulic system of powder press
  • Three-axis linkage control device and method for hydraulic system of powder press
  • Three-axis linkage control device and method for hydraulic system of powder press

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Embodiment Construction

[0022] see figure 1 , a three-axis linkage control device for the hydraulic system of a powder press, comprising: oil cylinder A, oil cylinder B, and oil cylinder C, which are controlled by A-axis, B-axis, and C-axis respectively, and the three axes can be linked; the control unit obtains the hydraulic system The current movement position and the current oil pressure; when the difference between the current movement position and the limit movement position of the hydraulic system is less than the position setting value, and the difference between the current oil pressure and the reference oil pressure is less than the pressure setting value, the control The unit controls the hydraulic system to stop moving, which can reduce the impact on the equipment when the device is running close to the limit movement position, and prevent collisions; the pressure sensor detects the current oil pressure of the oil cylinder; the position encoder detects the current movement position of the h...

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Abstract

The invention provides a three-shaft linkage control device of a hydraulic system of a powder pressing machine. The three-shaft linkage control device comprises a hydraulic driving unit, a control unit for obtaining the current movement position and the current oil pressure of the hydraulic system, a pressure sensor for detecting the current oil pressure of an oil cylinder and a position encoder for detecting the current movement position of the hydraulic system. When the difference value between the current movement position and the extreme movement position of the hydraulic system is smaller than a position set value and the difference value between the current oil pressure and the standard oil pressure is smaller than a pressure set value, the control unit controls the hydraulic system to stop moving. The problems that a hydraulic control system is often not high in accuracy and cannot conduct multi-shaft simultaneous operation are solved.

Description

technical field [0001] The invention belongs to the field of hydraulic control, and more specifically relates to a three-axis linkage control device and method for a hydraulic system of a powder press. Background technique [0002] Many construction machinery have a hydraulic control system, the hydraulic control system can include a hydraulic drive unit and the working parts driven by the hydraulic drive unit, the hydraulic system of the NdFeB press requires high-precision control, not only to control the pressure of the hydraulic system, but also to be precise The control speed, position. However, the hydraulic control system in the prior art is often not accurate enough, and cannot run multiple axes simultaneously. Contents of the invention [0003] The present invention aims to provide a three-axis linkage control device and method for a hydraulic system of a powder press, so as to solve the problems of low precision and inability to operate multiple axes simultaneous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/16B30B15/16B30B15/26
Inventor 龙厚炳邓聚金尹英槪林敏龚斌
Owner QIANDONG RARE EARTH GRP
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