Double-acting gradually-advancing type prestress plate four-axis pulse electromagnetic shape adjusting and nature adjusting device

Abstract

The invention discloses a double-acting gradually-advancing type prestress plate four-axis pulse electromagnetic shape adjusting and nature adjusting device. An electromagnetic coil is installed on a piston rod of a middle hinged shaft hydraulic cylinder, and the electromagnetic coil can have the movement of rotating around the axis of the electromagnetic coil, moving along the axis of the electromagnetic coil, moving along the Y axis of space and swinging by four degrees of freedom through a horizontally-moving and swing driving assembly. A plate feeding frame assembly is used for positioning a plate through a plate clamping assembly installed on the plate feeding frame assembly, and the plate can be driven to move along the X axis of the space. A flexible die and a frame pressing assembly are matched for bending and pre-loading the metal plate and bearing the pulse electromagnetic force generated during work of the electromagnetic coil. The movement that the plate gradually advances in the length direction of the plate and the movement that the electromagnetic coil gradually advances and adjusts the shape in the width direction of the plate can be sequentially executed alternately, the function of the pulse electromagnetic force generated by the electromagnetic coil on the whole curved surface of the plate is achieved through the cooperation of the two movements, and the shape adjusting function and the nature adjusting function are achieved on the metal plate having a certain initial prestress state.

Description

technical field [0001] The invention belongs to the field of metal plastic forming equipment, specifically, it is a four-axis device that can make a metal plate have a certain initial prestressed state, and use pulse electromagnetic force to gradually adjust its shape and tone. Background technique [0002] Large-scale aluminum alloy skins and integral wall panels can effectively meet the structural lightweight requirements in the aerospace field. They are also superior to small skin splicing structures in terms of strength and waviness, and are widely used in aircraft design. Large-scale skin and integral panel forming requires large-scale equipment corresponding to its size, and also puts forward higher requirements on the shape control ability of the forming equipment. Traditional forming equipment such as roll bending, gate pressing, and stretching can no longer meet the production requirements of large skins and integral panels. Large aircraft manufacturing companies su...

AI Technical Summary

Problems solved by technology

Due to the small size of the coil used, the forming force is small, the number of discharges is large, and the energy utilization rate is low

In addition, the relative position of the fixture is fixed, and the degree of adaptability and flexibility needs to be improved.

[0008] There are also some common deficiencies in the above-mentioned device:

[0009] 1) Prestress cannot be provided, and only the plate in the original zero stress state can be directly formed

[0010] 2) Large installation space

[0011] 3) Low space utilization

[0012] In summary, at present, there is no test device at home and abroad that can overcome the above shortcomings and conduct comprehensive research on the shape and properties of metal sheets based on pulsed electromagnetic force.

Images