Cylindrical turning device suitable for large-diameter thermal deformation composite material part

Abstract

Nowadays, along with the increasing demands of the fields of aerospace, water and oil transportation engineering, urban drainage and the like on pressure-resistant and corrosion-resistant light-weight composite materials, the large-diameter composite material pipeline is widely applied and cannot meet the demand. Clamping of large-size and large-mass hollow parts has certain difficulty, and due to the fact that large-size key mass manufactured in a composite mode is uneven in density, the radial circle run-out error of pipe fittings is large. The run-out error can directly act on the rotating main shaft, and the requirements for the strength and rigidity of the main shaft are increased accordingly. In order to guarantee cutting safety, a chuck external supporting method is adopted to achieve clamping and power transmission of a large pipe fitting. The innovation point of the invention is that the synchronous operation of external support fixation, power rotation and transverse feed cutting of the large hollow pipe fitting is realized through one set of device. By means of the technical scheme, the machining efficiency is remarkably improved, the dangerous action of manually fastening a workpiece is not needed in the machining process, the workpiece is installed more firmly through the design of the externally-supported three-jaw chuck, and when clamping is unstable, the workpiece is prevented from flying out through the power shaft. Therefore, in the prior art, a novel technical scheme is urgently needed to achieve stable and safe cutting of the outer circle of the end of the large composite material pipeline piece.

Description

technical field [0001] The invention belongs to the technical field of turning, and in particular relates to an outer circle turning device suitable for large-diameter heat-deformed composite material parts. Background technique [0002] This year, with the increasing demand for anti-compression, corrosion-resistant and lightweight composite materials in aerospace, water and oil transportation projects, urban drainage and other fields, the application of composite material pipes with large diameters is widely in short supply. Among them, in the water and oil pipelines, the joints of the pipes need to be connected, so the ends of the composite pipes need to be cut on both sides of each pipe. For a composite material part with a diameter of more than 1 meter and a large thermal deformation, it is significantly difficult to cut the outer surface of the outer circle. Due to the generation of cutting heat, the deformation size of the large thermal deformation part is more difficu...

AI Technical Summary

Problems solved by technology

[0003] The clamping of large-size and high-mass hollow parts is difficult. Due to the uneven density of the large-scale key mass produced by compounding, the radial circular runout error of the pipe is relatively large.

Images