Magneto-rheological supporting device and method for spherical crown thin-wall part

Abstract

The invention provides a magnetorheological supporting device and method for a spherical crown thin-wall part, and belongs to the technical field of clamping of thin-wall parts. The magnetorheological supporting device is composed of spherical array excitation equipment, a pouring module and a control module, magnetorheological fluid is made to be attached to the spherical crown piece through the pouring module, the control module is adopted to control the spherical array excitation equipment to generate a magnetic field, the magnetorheological fluid is excited and solidified, and supporting of the spherical crown piece is achieved. The magnetorheological fluid is adopted as a supporting medium, the flow characteristic of the magnetorheological fluid is excellent, and the magnetorheological fluid has good adaptability to the complex profile of the spherical crown piece; the six-prismatic-table electro-permanent magnet array is densely arranged on the spherical surface, the magnetic field intensity is high, the magnetic field continuity is good, and the supporting performance of the magnetorheological fluid is guaranteed; the intensity / area of the spherical magnetic field is automatically adjusted based on a PC + HMI + PLC control system, so that the magnetorheological support layout is rapidly redistributed, the adaptability to complex loads is good, and the automation level is high; and meanwhile, environmental protection is achieved, cost is low, and flexible, efficient and reliable supporting of the spherical crown piece is achieved.

Description

technical field [0001] The invention belongs to the technical field of clamping of thin-walled parts, and relates to a magneto-rheological support device and method for spherical-capped thin-walled parts. Background technique [0002] There is a kind of spherical thin-walled parts in major equipment in the fields of aerospace and nuclear engineering, such as rocket propellant storage tank heads, high-temperature gas-cooled reactor fuel spherical shells, etc., which have strict dimensional accuracy requirements during processing, such as ribs Width, groove depth, wall thickness, etc. However, the rigidity of the thin-walled spherical cap is poor, and the high-speed material removal process can easily induce deformation and vibration, resulting in a decrease in dimensional accuracy, which in turn affects service performance. It is necessary to introduce reliable supports from the outside to strengthen the rigidity of the spherical cap; The blank of the crown is generally form...

AI Technical Summary

Problems solved by technology

However, the fixture can only support the edge of the part, and the part still has a large area of ​​unsupported area, which is insufficient in rigidity, causing deformation and vibration

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