Real-time detection device of roundness of deep hole

Abstract

The invention, which belongs to the field of roundness detection of a deep hole, specifically relates to a real-time detection device of roundness of a deep hole so that a problem that the detection accuracy is reduced substantially because of the radial run-out error during the detection process according to the existing deep hole roundness detection process can be solved. The real-time detectiondevice comprises a front centering structure, a rear centering structure, and a detection structure. The front centering structure and the rear centering structure are arranged at the two ends of thedetection structure. According to the detection structure, a plurality of displacement sensors are installed at a sensor mounting ring. The front centering structure and the hole wall of the deep hole are in rolling contact to adapt to an aperture change of the deep hole so as to realize overlapping of the center line of the front end of the detection device with the axis of the deep hole. The rear centering structure and the hole wall of the deep hole are in a relative still or relative sliding state. With the laser displacement sensor, the detection accuracy is high; a motor is arranged anda computer is used for computing, so that the detection precision is high. Besides, self-centering, self-adaptive, and real-time roundness displaying functions for the hole are realized; and non-destructive automatic detection of the roundness of the deep hole is completed. The device based on the simple principle is easy to promote and apply.

Description

technical field [0001] The invention belongs to the field of roundness detection of deep holes, and in particular relates to a real-time detection device for roundness of deep holes. Background technique [0002] With the rapid development of modern science and technology and modern industry, deep hole parts have been widely used in various industries. At the same time, in some fields, the mechanical system puts forward higher requirements on the accuracy of deep hole parts, and the shape and position errors of mechanical parts largely reflect their machining accuracy. Among them, the roundness error refers to the variation of the actual circle of any positive section of the measured cylindrical surface relative to the ideal circle, which is the basis for the evaluation of many other shape and position errors. For rotating parts or the rotating surface of parts, there are many detection methods for outer diameter with high precision, but relatively few high-precision detect...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of radial runout error in the detection process of the existing deep hole roundness detection method, which greatly reduces the detection accuracy, the present invention provides a deep hole roundness real-time detection device

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