Novel pipe interior positioning device

Abstract

The invention discloses a novel pipe interior positioning device, comprising a supporting pipe and positioning elements, wherein the supporting pipe is a hard alloy pipe and is provided with positioning holes, the positioning elements are inserted into the supporting pipe, a positioning pin is arranged at a position where each positioning element is connected with the supporting pipe, a pressing block is arranged beside each positioning pin, the positioning elements are connected with a control component, a lead screw is connected behind a hydraulic motor and connected with the positioning elements, and an electromagnetic valve is arranged between the lead screw and the hydraulic motor and is a pulse electromagnetic valve. The positioning device is accurate in positioning, the positioning elements closely cling to the pipe wall to prevent the positioning device from shifting to influence the inspection of the inner wall of a pipe, and the lead screw controls feeding of the positioning elements to ensure reasonable feeding and prevent cracks on the outer surfaces of the positioning elements due to a large feeding amount to influence the use of the positioning elements.

Description

technical field [0001] The invention relates to a positioning device, in particular to a novel internal positioning device for pipe fittings. Background technique [0002] Before the pipe fittings leave the factory, the inspection of the pipe fittings is required. When the pipe fittings are inspected, the inner wall of the pipe fittings needs to be inspected, so that the damage of the inner wall of the pipe fittings can be found in time, and the damage to the pipe fittings can be prevented from leaving the factory. This way of working will lead to insufficient inspection. At the same time, there will be certain safety hazards when personnel enter the pipe fittings, which will affect the personnel's health. There are also some pipe fittings that rely on one-sided inspection during inspection, which cannot be fully inspected. The inspection of the pipe fitting wall results in the omission of some corners, which makes the inspection of the pipe fittings not thorough enough, and...

AI Technical Summary

Problems solved by technology

[0002] Before the pipe fittings leave the factory, the inspection of the pipe fittings is required. When the pipe fittings are inspected, the inner wall of the pipe fittings needs to be inspected, so that the damage of the inner wall of the pipe fittings can be found in time, and the damage to the pipe fittings can be prevented from leaving the factory. This way of working will lead to insufficient inspection. At the same time, there will be certain safety hazards when personnel enter the pipe fittings, which will affect the personnel's health. There are also some pipe fittings that rely on one-sided inspection during inspection, which cannot be fully inspected. The inspection of the pipe wall results in the omission of some corners, which makes the inspection of the pipe fittings not thorough enough, and it is difficult to guarantee the factory quality of the pipe fittings in the whole range

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