Internal turning device and method for heat insulation layer of low-temperature pipeline

Abstract

The invention discloses an internal turning device and method for a low-temperature pipeline heat insulation layer, belongs to the field of cutting, and adopts a direct drive motor to drive a hollow main shaft to realize the rotary motion of a turning tool and shorten a transmission chain, so that the internal turning device has the characteristic of compact structure. The turning machining of the outer surface of the heat insulation layer of the pipeline is achieved in the movement mode that the pipeline is static and the inner turning machining device drives a tool to rotate around the pipeline; a cutter movement module capable of moving in the radial direction is provided, cutter symmetric design with different heights in the axis direction is adopted, and the rough machining, semi-finish machining and finish machining of the heat insulation layer of the variable-cross-section complex pipeline can be completed at a time. The device and the method have an obvious machining efficiency improvement effect, are high in pipeline structure change adaptability, and are beneficial to quickly improving the machining capacity of various complex low-temperature pipeline heat insulation layers, so that application and popularization are realized.

Description

technical field [0001] The invention relates to a turning processing device and method in a low temperature pipeline heat insulation layer, in particular to a turning processing device and method in a low temperature pipeline heat insulation layer with a compact structure, belonging to the field of cutting processing. Background technique [0002] Various low-temperature pipeline components covered with thermal insulation layer are widely used in hydrogen-oxygen propulsion systems. Layers are difficult to automate. At present, the heat insulation layer processing of such cryogenic pipelines is done manually, that is, the heat insulation layer of the pipeline is manually cut to the expected thickness with a special shaping tool, and then manually polished and smoothly transitioned to complete the product shape modification. [0003] Chinese patent CN111571330A discloses an automatic pipeline processing machine tool: both ends of the pipeline are clamped, driven to rotate by ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a turning processing device and method for the low temperature pipeline heat insulation layer, the main processing object is the low temperature pipeline heat insulation layer, the low temperature pipeline has complex The three-dimensional structure not only has high requirements for processing accuracy, but also has a significant demand for processing efficiency.

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