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Noncontact type automatic detection method and device for drum-shaped workpiece shape and position dimension

A technology for automatic detection devices and cylindrical workpieces, which is applied to measuring devices, instruments, and the use of ultrasonic/sonic/infrasonic waves, etc., can solve the problems of low product qualification rate, reduce scrap rate, improve efficiency, and facilitate use.

Inactive Publication Date: 2007-11-28
HARBIN INST OF TECH
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low product qualification rate caused by human factors affecting the detection accuracy of the tube wall of the cylindrical workpiece during the processing process, the invention provides a high-precision non-contact automatic detection of the shape, position and size of the cylindrical workpiece Method and device

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  • Noncontact type automatic detection method and device for drum-shaped workpiece shape and position dimension
  • Noncontact type automatic detection method and device for drum-shaped workpiece shape and position dimension
  • Noncontact type automatic detection method and device for drum-shaped workpiece shape and position dimension

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Embodiment Construction

[0017] The automatic detection method of the shape, position and size of the non-contact cylindrical workpiece in this embodiment is as follows:

[0018] Step 1: Determine the reference point of the measurement, and mark the position z of the section to be measured on the outer surface of the workpiece to be measured 1 to z n , and then perform step 2;

[0019] Step 2: Control the measured workpiece to rotate at a constant speed, and at the same time make the encoder rotate synchronously with the measured workpiece, and then perform step 3;

[0020] Step 3: Continuously and evenly spray the ultrasonic coupling agent onto the surface of the workpiece to realize ultrasonic coupling; then perform step 4;

[0021] Step 4: Adjust the position of the ultrasonic probe so that the extension line of the central axis of the ultrasonic probe intersects the central axis of the workpiece to be measured, so that the ultrasonic waves emitted by the ultrasonic probe are incident perpendicul...

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Abstract

The invention relates to a non-contacting automatic measuring method for shape and position dimension of cylinder part and the device. The problem that because measuring accuracy for part pipe wall is influenced by human factor in process for cylinder part production qualification ratio is low. The method is that the measuring base point is determined and multiple measuring sections on the outer surface of measuring part are labeled; measuring part is fixed on the chuck of lathe and it is controlled to rotate in constant speed; ultrasonic coupling medium sprays to measured surface continuously and evenly; ultrasonic probe is adjusted to aim at multiple measuring sections so that ultrasonic emitted by said ultrasonic probe rips into measuring surface vertically; according information collected by encoder rotating angle of measuring section, corresponding surface information and wall thickness information is measured and recorded; outer surface information and wall thickness information of multiple measuring sections are stated and analyzed. The measuring method and the device in invention can be widely applied in measuring and machining process of prior cylinder part.

Description

technical field [0001] The automatic detection method and device for the shape, position and size of a cylindrical workpiece relate to the processing measurement control method and device for cylindrical workpieces and similar products. Background technique [0002] Most of the cylindrical workpiece and its similar products need to be cast and machined to achieve the final size requirements, during which heat treatment and stabilization are also required. During the processing of so many processes, deformation is inevitable. In the process, being able to accurately detect the shape and size of the workpiece is an important factor to ensure the yield of the processed product. In the existing processing of cylindrical workpieces, the control of the shape and size of the workpiece is mostly performed by the processing technicians who manually measure the multi-point wall thickness values, and then determine the processing adjustment method and the calculation of the machining a...

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Application Information

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IPC IPC(8): G01B17/00G01B17/02G01B17/06
Inventor 刚铁盛朝阳林俊杰袁媛
Owner HARBIN INST OF TECH
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