Simple fixing and clamping device of large-sized wallboard

Abstract

The invention discloses a simple fixing and clamping device of a large-sized wallboard. The height of suction cup devices is adjusted by the self weight of the wallboard, and all vacuum suction cups are in contact with the wallboard sufficiently. The height of adjusting springs of the fixing and clamping device can be adjusted automatically to adapt to a molded surface shape of a workpiece, and when the wallboard is sight, an external load can be conducted; the fixing and clamping device can increase and decrease the number of the suction cup devices for fixing and clamping a wallboard curved face with different sizes and different shapes, and the fixing and clamping device has good universality and good flexibility. An air compressor is connected with a vacuum generator, and the vacuum generator is connected with the suction cup devices through vacuum rubber pipes; by controlling the air exhaust of the air compressor, negative pressure is generated in the vacuum suction cups, the clamp force is formed, and the wallboard is sucked to the fixing and clamping device. When the processing of the wallboard is completed, the air compressor is controlled to make the negative pressure in the vacuum suction cups change into zero pressure or positive pressure, and the vacuum suction cups are departed from the wallboard automatically. The fixing and clamping device is simple in structure, good in compatibility and can adapt to part processing and forming of the wallboard of different curvature of surface changes.

Description

technical field [0001] The invention belongs to the technical field of forming sheet metal parts, and in particular relates to a simple holding device for a large wall plate. Background technique [0002] The integral panel is the most important part in the field of aerospace. It is not only an important part of the aerodynamic shape of the aircraft rocket, but also the main load-bearing component of the wing and fuselage. Therefore, the processing quality of the integral panel directly restricts the flight performance of the aerospace vehicle. Since the integral wallboard has the characteristics of large size and complex shape curvature, it is necessary to use a special clamping device to fix it in order to ensure the processing accuracy during the processing of the wallboard. [0003] The traditional vacuum fixture is within the range of 1m*1m, and the surface of the vacuum fixture is a planar structure, so it is not easy to clamp large curved surface structural parts. I...

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the deficiencies of the existing technology and overcome the problems that traditional fixtures can only clamp small planar structural parts, have poor compatibility, complex structures, and cannot adapt to changes in curvature of curved surfaces

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