Large composite material winding body core mold device

Abstract

The invention relates to the technical field of composite material winding shell core molds, and particularly discloses a large composite material winding body core mold device. The large composite material winding body core mold device comprises a core shaft, an outer mold, a first bearing seat, a second bearing seat, a first self-aligning bearing and a second self-aligning bearing; the first self-aligning bearing and the second self-aligning bearing are both arranged on the core shaft; the first bearing seat and the second bearing seat are correspondingly arranged on the first self-aligningbearing and the second self-aligning bearing; the outer mold is connected with the core shaft through the first bearing seat, the second bearing seat, the first self-aligning bearing and the second self-aligning bearing, and the outer mold is connected with a driving device. According to the composite material winding shell core mold, the movement modes of all existing core molds are overturned, the supporting span of the outer mold is greatly reduced, the deflection problem of the core mold is successfully solved from the design source, deformation between the outer mold and the core shaft iscompletely isolated through the two self-aligning bearings, and deflection deformation or thermal expansion deformation of the core shaft does not affect the outer mold.

Description

technical field [0001] The invention relates to the technical field of composite material winding casing mandrels. Background technique [0002] The winding molding process is to wind the continuous fiber soaked in the resin glue solution on the mandrel according to certain rules, and then after curing and demoulding, the finished product is obtained. The core mold device used in the prior art is supported at both ends and rotated at both ends, and the rotating shaft is consistent with the supporting shaft. This kind of device has a simple structure and good precision when forming small and medium-sized composite material winding shells, so it is widely used. [0003] However, when winding a large composite material shell, 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 curing thermal expansion during use, resulting in product failure. Dimensions and performan...

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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