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Digital coil shaping machine hydraulic control system

A technology of hydraulic control system and shaping machine, which is applied in electromechanical devices, mechanical equipment, manufacturing of motor generators, etc., can solve the problems of low control accuracy, poor control performance, small control range, etc., to improve control accuracy and eliminate linear deadlock. area problems, the effect of realizing large-scale system control

Inactive Publication Date: 2016-05-04
HEFEI HAIDE HYDRAULIC PRESS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a digital coil shaping machine hydraulic control system to solve the problems of the prior art coil shaping machine hydraulic control system with small control range, low control precision and poor control performance

Method used

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  • Digital coil shaping machine hydraulic control system

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Embodiment Construction

[0020] Such as figure 1 Shown. The hydraulic control system of the digital coil shaping machine includes an oil pump 2 driven by a motor 1. An oil outlet pipe is connected to the outlet of the oil pump 2. The oil outlet pipe of the oil pump 2 is connected to the oil inlet of an electromagnetic reversing valve 5. The electromagnetic reversing valve 5 has Double oil outlets and the double oil outlets of the electromagnetic reversing valve 5 are respectively connected with oil pipes. One of the oil pipes of the electromagnetic reversing valve 5 is connected to the upper part of the digital coil shaping machine oil cylinder 9, and the other oil pipe of the electromagnetic reversing valve 5 is connected to the digital coil shaping The lower part of the oil cylinder 9 also includes high and low pressure proportional servo valves 8 and 7 connected in parallel. After the high and low pressure proportional servo valves 8 and 7 are connected in parallel, they are connected to the oil pip...

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Abstract

The invention discloses a hydraulic control system of a digital large-range ultra-high precision coil trueing machine. The hydraulic control system of the digital large-range ultra-high precision coil trueing machine comprises an oil pump, an oil pipe on the outlet of the oil pump is communicated with an oil inlet of a solenoid directional valve, oil pipes on the double oil outlets of the solenoid directional valve are respectively communicated with an upper portion and a lower portion of the oil cylinder of the digital coil trueing machine, and a high-pressure proportional servo valve and a low-pressure proportional servo valve connected in parallel are connected with oil pipes communicated with the lower portion of the oil cylinder. The hydraulic control system of the digital large-range ultra-high precision coil trueing machine enables the control pressure of the hydraulic system to be adjustable between 3% to 100%. The error of the pressure control accuracy is + / - 0.02 MPA around a set value. The hydraulic control system of the digital large-range ultra-high precision coil trueing machine eliminates the problem of the linear dead zone of system elements, achieves large-range system control, and improves the control accuracy of the whole system.

Description

Technical field [0001] The invention relates to the field of coil shaping machines, in particular to a digital coil shaping machine hydraulic control system. Background technique [0002] The hydraulic control system of the hydraulic coil shaping machine is an important part of the whole shaping machine. The performance of this part determines the performance of the coil shaping machine. The traditional hydraulic control system design of the coil shaping machine has the following consensus defects: [0003] 1. The proportional valve used in the hydraulic control system of the traditional coil shaping machine is generally linear, and the initial linearity is generally about 15%-20%, which determines that the control range of the entire system is small and the system pressure control accuracy is not high. [0004] 2. There is generally only one proportional valve used in the hydraulic control system of the traditional coil shaping machine. One proportional valve is used to control the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00F15B11/02
Inventor 顾玉红肖培青
Owner HEFEI HAIDE HYDRAULIC PRESS
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