External thread rapid detection tool, manufacturing method and using method thereof

Abstract

The invention discloses an external thread rapid detection tool, a manufacturing method and a using method thereof, wherein the rapid detection tool is manufactured by forming a straight edge notch in a rigid block body and further machining and forming a linear tooth groove matched and meshed with external threads. According to the detection tool, the situation that the axial length of the whole external threads needs to be traversed in a threaded connection mode in the traditional external thread detection process is changed, and the detection of the specification precision of the external thread can be rapidly completed only by intermittently adjusting the axial angle of a detected object and horizontally sliding the detected object and the detection tool. By applying the scheme of the quick detection tool, the problem that the detection operation is tedious due to the fact that the axial lengths of a round hole and an external thread of a traditional go-no go gauge are greatly different is solved, the machining difficulty is reduced, and the precision consistency of detection tools of the same specification can be improved; and in the actual use of the testing fixture, the abrasion rate of multiple meshing sliding can be greatly reduced, and the detection efficiency can be multiplied.

Description

technical field [0001] The invention relates to an industrial inspection tool, in particular to a tool for detecting high-precision screw teeth on the thread provided on the outer wall of a needle tube, and belongs to the field of mechanical application and manufacturing technology. Background technique [0002] At present, thread refers to a helical groove-shaped structure with a continuous convex part of a specific cross-section processed on the surface of a cylindrical object. In particular, it is widely used in home improvement plumbing products and various docking products that require high sealing performance. [0003] Taking pipe fittings as an example, there are two types of metal pipes and hard plastic pipes, and the production and processing processes are also different due to differences in materials. Therefore, there are different process emphases on the precision of the formed thread. For metal pipe fittings, in order to facilitate the installation and applica...

AI Technical Summary

Problems solved by technology

However, the service life of this type of inspection tool is very limited. After as few as ten or at most a hundred inspections, it will be scrapped due to severe wear and cannot be repaired and reused, which affects the large-scale production and product quality of pipe fittings to a certain extent. Inspection, can only rely on sampling individual inspection can not represent the overall quality of batch products

Moreover, the difficulty level of processing the detection groove with higher precision requirements on the inner wall of the round hole is extremely difficult, which virtually increases the cost of the detection operation; the round hole go-no-go gauge produced in different batches for the same detection object will also or There are more or less differences in precision, which cannot meet the consistency requirements of product quality inspection results

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