A large-scale composite winding body mandrel device

Abstract

The invention relates to the technical field of composite material winding shell mandrels, and specifically discloses a large-scale composite material winding body mandrel device, including: a mandrel, an outer mold, a first bearing seat, a second bearing seat, and a first self-aligning bearing , the second self-aligning bearing; the first self-aligning bearing and the second self-aligning bearing are arranged on the mandrel; the first bearing seat and the second bearing seat are respectively arranged on the first self-aligning bearing and the second self-aligning bearing; The outer mold is connected with the core shaft through the first bearing seat and the second bearing seat, the first self-aligning bearing and the second self-aligning bearing, and the outer mold is connected with the driving device. The mandrel of the composite material winding shell provided by the present invention overturns the movement mode of all existing mandrels, greatly reduces the supporting span of the outer mold, and successfully solves the deflection problem of the mandrel from the design source. Two adjustments are adopted The core bearing completely isolates the deformation between the outer mold and the mandrel, and the deflection deformation or thermal expansion deformation of the mandrel will not have any influence on the outer mold.

Description

technical field [0001] The invention relates to the technical field of composite material winding shell mandrels. Background technique [0002] The winding molding process is to wind the continuous fibers soaked in the resin glue on the core mold according to a certain rule, and then solidify and demould to obtain the product. The core mold device used in the prior art is supported at both ends and rotated at both ends, and the rotating shaft is the same as the support shaft. This device has a simple structure and good precision when forming small and medium-sized composite materials wrapped around a shell, so it is widely used. [0003] However, when the large-scale composite material shell is wound, due to the large size and heavy weight of the mandrel body, the mandrel used in the prior art has problems such as large deflection of the mandrel itself and large amount of curing thermal expansion during use, which leads to the failure of the product. The size and performanc...

AI Technical Summary

Problems solved by technology

This mode subverts the movement mode of all existing core molds. This mode greatly reduces the supporting span of the outer mold and successfully solves the deflection problem of the core mold from the design source. Two self-aligning bearings are used to connect the outer mold with the The deformation between the mandrels is completely isolated, and the deflection deformation or thermal expansion deformation of the mandrels will not have any influence on the outer mold

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