Flexible fixture device for machining aviation complex thin-walled parts and fabrication method of flexible fixture device

Abstract

The invention provides a flexible fixture device for machining aviation complex thin-walled parts and a fabrication method of the flexible fixture device. The flexible fixture device is characterized by comprising a plurality of fixture module structures, according to the fixture module structures, universal joints are installed at the tops of pistons, the multiple pistons are fixedly arranged in a fixture box body, one side of the fixture box body is provided with detection devices, the box corners are provided with an assistant supporting rod and machining reference zero-position marks, the box body wall is provided with an electromagnetic locking device and hand-actuated electromagnets, liquids are stored in the fixture box body, and liquids in piston cavities and the liquids in the fixture box body are circulated, and fixture modules are formed. The fabrication method comprises the following steps that firstly, the universal joints are installed on piston rods, the pistons are installed on the fixture box body, the assistant supporting rod is installed at one of the box corners, the detection devices are installed on the side faces of the fixture box body, then the flexible fixture modules are assembled, and the multiple flexible fixture modules which are of the same shapes as those of the thin-walled parts are assembled into the fixture device with the universal joints being in high-low transition and the edges being staggered. The flexible fixture device is simple in structure, convenient to operate, low in fabrication cost and high in interchangeability and modularization degree and has certain degrees of automation characteristics, and by means of the flexible fixture device and the fabrication method of the flexible fixture device, the production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of processing and manufacturing, and relates to a design, manufacture and use method of a flexible clamping device used in the processing of aviation complex thin-walled parts. Background technique [0002] Aviation industry is a strategic industry of national economy and national defense construction, and it is a concentrated expression of a country's industrial technology. The role of the aircraft skin is to maintain the shape of the aircraft so that it has good aerodynamic characteristics. Aircraft skin is a typical thin-walled part, with complex structure, low relative rigidity, large machining allowance, poor workmanship, and easy deformation due to force during processing. [0003] Traditional thin-wall parts assembly tooling mostly adopts rigid structure, and the assembly mode adopts one-to-one mode, that is, one component corresponds to one frame, so a large number of tooling needs to be designed and manufact...

AI Technical Summary

Problems solved by technology

At the same time, with the emergence of more and more new parts, new requirements are put forward for the performance and structure of the fixture. The old assembly tooling can no longer meet the assembly requirements. A simple structure, strong adaptability and high flexibility is needed. New flexible fixture

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