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Sliding block deviation correction mechanism of hydraulic press

A hydraulic press and deviation correction technology, applied in the direction of presses, manufacturing tools, etc., can solve the problems of large system flow, complex structure, low precision, etc., and achieve the effect of simple system structure, fast response speed, and reduced energy consumption of the host

Inactive Publication Date: 2012-02-01
HUZHOU MACHINE TOOL WORKS
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Problems solved by technology

The above-mentioned structure has high processing precision and complex structure; the functional parts of anti-eccentric load are shared with the main system, the system has large flow rate, low precision and slow response; it can only avoid the damage of functional parts caused by eccentric load, but cannot fundamentally solve the problem

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  • Sliding block deviation correction mechanism of hydraulic press
  • Sliding block deviation correction mechanism of hydraulic press
  • Sliding block deviation correction mechanism of hydraulic press

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Embodiment approach

[0018] refer to figure 1 , using a double-cylinder form of correction mechanism, the correction mechanism is suitable for the slider 3 action surface of the long distance is greater than the width of the situation. Its specific structure: the slider 3 of the hydraulic machine is connected with a group of correction cylinders, the first correction cylinder 4 and the second correction cylinder 5 are connected to the left and right ends of the slider 3 with the main oil cylinder 2 as the center according to the symmetrical structure, the first correction cylinder The lower chamber of the cylinder 4 is connected with the upper chamber of the second deviation-correcting cylinder 5, the upper chamber of the first deviation-correcting cylinder 4 and the lower chamber of the second deviation-correcting cylinder 5 respectively through pipelines, and both pipelines are connected and controlled by the controller The proportional servo valve 6, the proportional servo valve 6 is connected ...

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Abstract

The invention discloses a sliding block deviation correction mechanism of a hydraulic press, the center of a sliding block of the hydraulic press is connected with a main oil cylinder controlled by a main hydraulic system, the deviation correction mechanism comprises at least one group of deviation correction cylinders, each group of the deviation correction cylinders comprises a first deviation correction cylinder and a second deviation correction cylinder, and the first deviation correction cylinder and the second deviation correction cylinder are connected on the sliding block according to the symmetrical structure by taking the main oil cylinder as the center; the lower cavity of the first deviation correction cylinder and the upper cavity of the second deviation correction cylinder, as well as the upper cavity of the first deviation correction cylinder and the lower cavity of the second deviation correction cylinder, are respectively communicated through pipelines, and the two pipelines are connected into a proportional servo valve controlled by a controller; and displacement sensors are correspondingly arranged at the parts connected with the deviation correction cylinders on the sliding block, and the controller is used for adjusting the opening degree and the direction of the proportional servo valve according to the displacement comparative value between the two displacement sensors corresponding to the deviation correction cylinders in the same group.

Description

technical field [0001] The invention relates to an automatic control technology of a hydraulic press, in particular to a sliding block correction mechanism of a hydraulic press. Background technique [0002] In modern industrial production, the stretching manufacturing method is suitable for plate parts of various materials and processed into various shapes, such as cylindrical, spherical, conical and other special-shaped parts. For relatively simple symmetrical parts, the deformation force is also symmetrical during the stretching deformation process; but for more complex parts, the deformation force is asymmetrical during the stretching deformation process, and an eccentric load moment is formed during compression. It not only affects the processing accuracy of the workpiece, but also reduces the service life of the hydraulic press and the oil cylinder. [0003] At present, there are many methods in the industry to solve the problem of anti-eccentric load moment of the hy...

Claims

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Application Information

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IPC IPC(8): B30B15/16
Inventor 吴佳森华强
Owner HUZHOU MACHINE TOOL WORKS
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