Driven big swing angle flexible positioning and holding device

Abstract

The invention discloses a driven big swing angle flexible positioning and holding device which comprises an actuating cylinder, a moving shaft and a swinging head, wherein the moving shaft rotates and moves in the actuating cylinder; the swinging head is arranged at the top end of the moving shaft; a bottom plate for fixing the integral driven big swing angle flexible positioning and holding device and a moving shaft locking device are arranged on the actuating cylinder; a swing resetting device and a sucker are arranged on the swinging head; an air pipe for the sucker passes through the moving shaft, the swinging head, a short shaft and a through hole in a sucker seat to be connected with the sucker; four bolts with positioning taper holes are arranged on the sucker and are used as positioning device of the driven big swing angle flexible positioning and holding device; and a moving shaft resetting device is respectively arranged on the actuating cylinder and the swinging head and is used for guiding the moving shaft to return to an initial state when the moving shaft is reset. In the invention, the moving shaft can freely move and rotate along the Z-axis direction and can be accurately positioned with the help of auxiliary equipment; and the sucker can swing at a large swing angle and can be freely reset so as to implement a self-adaptive flexible positioning and holding function for different skins.

Description

technical field [0001] The invention relates to a passive large swing angle flexible positioning and holding device, which is a positioning and holding device for automatic drilling and riveting of aircraft skins. Background technique [0002] Aircraft skin, as a key part of the aircraft's aerodynamic shape, has complex shapes, large size ranges, low stiffness, and small production batches. The traditional processing method is to fix the skin on a rigid fixture, and then perform drilling and riveting. The work is labor-intensive, the drilling accuracy is low, and the riveting quality is poor. In recent years, in order to achieve precise and efficient drilling and riveting of the skin and improve manufacturing quality, foreign aircraft manufacturers have gradually adopted the CNC drilling and riveting process based on flexible tooling. Since the early 1990s, flexible tooling developed by foreign companies has been used by aircraft manufacturers such as Boeing, Airbus, and Mc...

AI Technical Summary

Problems solved by technology

Due to structural limitations, the maximum swing angle of the universal ball suction cup is 45°, which cannot absorb some large-curvature skins

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