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Multi-hydraulic cushion control system for longitudinal beam hydraulic press

A technology of a control system and a hydraulic pad, which is applied in the field of hydraulic presses, can solve problems such as the inability to meet the actual needs of hydraulic presses, and achieve the effects of solving the problem of strength design, reducing the use cost, and being easy to press and form.

Inactive Publication Date: 2012-01-18
TIANJIN TIANDUAN PRESS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing control devices cannot meet the actual needs of hydraulic press work

Method used

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  • Multi-hydraulic cushion control system for longitudinal beam hydraulic press
  • Multi-hydraulic cushion control system for longitudinal beam hydraulic press

Examples

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Embodiment Construction

[0013] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0014] See figure 1 , the present invention includes several groups of hydraulic pads 1, hydraulic pad cylinders 2 for controlling their technological actions, and ejector cylinders 3 for controlling their jacking and retraction. The hydraulic pad cylinders 2 are connected through a proportional overflow valve and a filling valve 7 To the hydraulic cushion cylinder suction and discharge oil pipe 13, the filling valve 7 is connected to the hydraulic cushion cylinder control oil pipe 14, the inlet and outlet of the ejection cylinder 3 are connected to the ejection cylinder control oil pipe 15 at the same time, and its outlet is connected through the one-way valve 6 To the pipeline between the filling valve 7 and the oil suction and discharge pi...

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Abstract

The invention relates to a multi-hydraulic cushion control system for a longitudinal beam hydraulic press. The system comprises a plurality of groups of hydraulic cushions, a hydraulic cushion cylinder for controlling the plurality of groups of hydraulic cushions to produce process action, and a jacking cylinder for controlling to jack and return the plurality of groups of hydraulic cushions, wherein the hydraulic cushion cylinder is connected to a hydraulic cushion cylinder suction and delivery oil pipe by a liquid charging valve; the liquid charging valve is connected to a liquid charging valve control oil pipe; and the inlet and the outlet of the jacking cylinder are connected to a jacking cylinder control oil pipe at the same time. A C-type electromagnetic reversing valve and a one-way throttle valve are arranged between the liquid charging valve and the liquid charging valve control oil pipe, a J-type electromagnetic reversing valve and a double one-way throttle valve are arranged between the jacking cylinder and the jacking cylinder control oil pipe, the inlet of the double one-way throttle valve is connected with the outlet of the J-type electromagnetic reversing valve, one outlet of the double one-way throttle valve is connected with the inlet of the jacking cylinder, and the other outlet of the double one-way throttle valve is connected with the outlet of the jacking cylinder. By using the multi-hydraulic cushion control system, an optional combination of the plurality of groups of hydraulic cushions can be selected to work according to requirements, cost is lowered, and a complicated workpiece can be easily subjected to press forming.

Description

technical field [0001] The invention belongs to the technical field of hydraulic presses, and in particular relates to a multi-hydraulic cushion control system for longitudinal beam hydraulic presses, which is suitable for stretching process of large-tonnage and long-table automobile longitudinal beam plates, and has multiple groups of hydraulic cushions working in any combination. Background technique [0002] At present, hydraulic presses used in the automotive industry have various forms according to the pressing process requirements. The car chassis is an important car part that supports and installs the car engine and its components and assemblies to form the overall shape of the car, and receives the power of the engine to make the car move and ensure normal driving. Automobile longitudinal beam hydraulic press, which can realize functions such as stretching, bending and shaping of U-shaped longitudinal beams. The automobile longitudinal beam pressed by this press is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/20B30B15/16
Inventor 刘泽宇
Owner TIANJIN TIANDUAN PRESS CO LTD
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