Device and method for machining end part of pipe fitting, and application

Abstract

The invention discloses a device and a method for machining the end part of a pipe fitting, and an application. The device comprises a self-centering component and an internal adjustment component or / and an external adjustment component which are distributed separately along the same axis, wherein each of the internal adjustment component and the external adjustment component comprises a pluralityof adjustable supports which are uniformly distributed along the axis and rotary elements arranged on the supports; and with the automatic alignment of the self-centering component in the pipe fitting, the rotary elements of the internal adjustment component are outwards extensible in the radial direction of the adjustable supports, and the rotary elements of the external adjustment component areinwards extensible in the radial direction of the adjustable supports until the inner pipe wall or / and the outer pipe wall of the pipe fitting are clamped separately. The device disclosed by the invention is simple in structure and convenient to clamp, and the pipe fitting does not need to be moved during machining.

Description

technical field [0001] The invention relates to a pipe fitting end processing device, method and application. Background technique [0002] In the mechanical processing industry, it is often necessary to process pipe fittings. For example, before welding, the pipe fittings to be welded need to be polished to remove dirt such as oil and rust to avoid welding defects. Another example is when conducting nondestructive testing of drill pipes and steel pipes, it is necessary to clean and remove dust from the pipe body of the pipe fittings to prevent the mud from affecting the accuracy and integrity of the inspection; in addition, milling may be required for irregular pipe fittings, etc. . [0003] However, at present, the operation of pipe fittings in mechanical processing is mostly manual operation, using simple tools for grinding, cleaning or milling. This operation has the following problems: [0004] (1) Waste of manpower, large manpower investment, high requirements for th...

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Problems solved by technology

[0004] (1) Waste of manpower, large manpower investment, high requirements for the operation of some precision instruments, high requirements for the professional ability of personnel, and high training costs

At the same time, the success rate of pipe fittings processing mainly depends on the ability of the operator, resulting in unnecessary waste of pipe fittings raw materials;

[0005] (2) For heavy pipe fittings, it is inconvenient to move and rotate because it is too heavy, and it takes a long time for personnel to operate and the efficiency is low

[0006] Of course, with the advancement of science and technology, many parts for pipe fittings processing have appeared at present, but these parts have the following defects: the equipment is relatively huge, generally large processing equipment such as polishing machine tools or milling machines, for tubular parts, especially The pipe wall is relatively thin, and the pipe-shaped parts that require precise processing are not easy to operate and easily damage the pipe wall structure. For large-scale pipe-shaped parts, because the equipment is larger, it is difficult to move, so only the pipe-shaped parts can be moved, which increases the labor and labor during the handling process. Risk of damage to tubular components; existing large-scale processing equipment requires manual participation or intervention during operation, and it is difficult to reduce labor input. At the same time, there are risks to the personal safety of operators when operating large-scale processing equipment; for The operation of regular or irregular tubular parts requires additional alignment or self-centering devices to prevent uneven operations on the pipe wall, causing damage to the tubular parts and making them unusable; additional costs are required, and at the same time, the search for After positive or self-centering, large-scale processing equipment may not be able to adapt well, still causing misoperation

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