A threaded hole measuring device and method with positioning function

By combining a threaded hole positioning component with multiple positioning mechanisms, the problems of cumbersome operation and insufficient accuracy when measuring threaded holes with go and no-go gauges are solved, and the precise positioning of the probe and the threaded hole and high-precision measurement are achieved.

CN117824556BActive Publication Date: 2026-06-16CRRC QINGDAO SIFANG CO LTD
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Patent Information

Application Number
CN202410038978.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-10
Publication Date
2026-06-16
Estimated Expiration
2044-01-10

AI Technical Summary

Technical Problem

In the existing technology, the operation of go and no-go gauges for measuring threaded holes is cumbersome and the accuracy is insufficient. The positioning deviation between the probe and the threaded hole affects the measurement accuracy.

Method used

A threaded hole measuring device with positioning function was designed. Through the coordinated action of the threaded hole positioning component, slider, fixed plate and hydraulic piston component, the probe is automatically positioned and moved stably in the threaded hole. Combined with the height positioning mechanism, angle adjustment mechanism and auxiliary limit mechanism, the measurement accuracy is ensured.

Benefits of technology

It achieves precise positioning of the probe and the threaded hole, avoids measurement deviation, improves the accuracy and stability of threaded hole measurement, and simplifies the operation process.

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Abstract

The application discloses a threaded hole measuring device with a positioning function and a method, relates to the threaded hole measuring technical field, and comprises a detection main body provided with a measuring needle, and symmetrical fixing plates are arranged on the two sides of the detection main body and are slidably connected with sliding blocks; the sliding blocks are penetrated by first movable rods, the outer sides of the first movable rods are provided with first elastic members, and the first movable rods are connected with threaded hole positioning assemblies; the threaded hole positioning assembly is provided with a positioning rod, and is used for moving the positioning rod to be attached to the inner wall of a threaded hole during pressing the detection main body. The threaded hole measuring device can realize automatic positioning of the measuring needle and the threaded hole and improve the measuring precision.
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