Spline mandrel cylinder winding forming die and preparation method thereof

Abstract

The invention discloses a spline mandrel barrel winding forming mold and a preparation method thereof in the technical field of mechanical forming, the spline mandrel barrel winding forming mold comprises a shell plate, a frame assembly is fixedly connected to the inner wall of the shell plate through bolts, the frame assembly is composed of a frame outer ring, a supporting rod and a frame inner ring, and the frame outer ring is fixedly connected to the inner wall of the shell plate through bolts; the two frame outer rings are fixedly connected through second connecting blocks, supporting rods are fixedly connected into the frame outer rings through bolts, the ends, away from the frame outer rings, of the supporting rods are fixedly connected with frame inner rings through bolts, the two frame inner rings are fixedly connected through first connecting blocks, and spline shaft cores are movably connected into the frame inner rings. The structure is simple, the product precision can be improved only through simple operation, and the effect of avoiding the die removal risk after the product is cured is achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical forming, in particular to a spline mandrel cylindrical body winding forming die. Background technique [0002] Structural forming of large cylindrical products generally adopts winding forming molds. Winding molding needs to meet the requirements that the composite material is wound on the mold surface according to a certain rule under the predetermined molding control conditions, and after curing, demoulding, and obtaining the specified shape; the current winding molding mold parts are difficult to process, high in cost, and poor in assembly accuracy. The assembled mold surface often has defects such as step difference and large seam, so the mold surface is often repaired with one-time fragile and fusible materials (such as gypsum, paraffin, etc.), but the repair and repair agent The curing period is too long. [0003] When the composite material is wound, the mold needs to bear various load...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a spline mandrel barrel winding molding mold to solve the thermal expansion and contraction of each part of the mold when the product is heated and solidified, and the poor matching accuracy of each part. The mold is often damaged when the mold is disassembled. Unable to disassemble, leading to the problem of scrapping the product

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