A soft mold auxiliary positioning mold
A technology of auxiliary positioning and soft mold, applied in the field of composite material molding, can solve the problems of poor molding accuracy, large deformation size gap, uneven expansion of composite materials, etc., to ensure the realization of the process, good manufacturability and operability, The effect of improving product accuracy
Active Publication Date: 2020-12-25
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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[0004] However, although silicone rubber can be used to better realize the molding of complex composite materials, silicone rubber will form elastic body characteristics during the expansion process, that is, the expansion of each part is very uneven, resulting in a very large difference in the deformation size of each part, making Composite materials have the problem of poor molding accuracy, so how to control the expansion force and expansion deformation is a crucial issue
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[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0038] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...
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Abstract
The invention provides a soft mold assisting positioning mold, which comprises a rigid outer mold, a rigid core mold, a soft mold and a positioning sliding assembly. The positioning sliding assembly comprises a plurality of sliding parts and a molded surface metal module; a first positioning hole, a second positioning hole and a third positioning hole which are opposite to the multiple sliding parts are machined in the molded surface metal module, the soft mold and the rigid core mold correspondingly; the molded surface metal module sleeves the multiple sliding parts through the first positioning hole in the molded surface metal module and is placed on the soft mold; the multiple sliding parts sequentially penetrate through the second positioning hole and the third positioning hole and arefixed to the rigid core mold; and during forming, the soft mold expands to push the molded surface metal module to slide on the sliding parts, and then a composite material is formed between the rigid outer mold and the molded surface metal module. The soft mold assisting positioning mold is controlled through assisting means, the positioning sliding assembly assists in forming of the soft mold,the soft mold provides expansive force, the sliding assembly is used for meeting the plane and limiting dimension requirements, and the forming precision of a product is improved greatly.
Description
technical field [0001] The invention provides a soft mold auxiliary positioning mold, which belongs to the technical field of composite material forming. Background technique [0002] At present, the forming of composite material structure basically adopts the method of integral forming and split forming machine. Among them, the advantage of integral molding is that each structural component can transmit load evenly, reduce the number of parts and assembly costs, but the more complex the composite material component is, the more difficult it is to design and manufacture the mold; Bonding, screwing, or riveting to form a whole can reduce the difficulty of forming, but the connection methods such as riveting and screwing will cause damage to the composite material structure, and the performance of the structural parts is lower than that of the integrally formed composite material structure. In addition, the RTM process can be used for complex overall molding processes, but th...
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IPC IPC(8): B29C33/30B29C70/44
Inventor 卢山汪东韩蕾江建英毕向军
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH