An Image-Based Circularity Detection Equipment

Abstract

The invention discloses an image-based roundness detection device, which comprises a base, a bracket, a collar one and a collar two, the base is arranged horizontally, and the two sides of the top surface of the base are vertically fixed with the The bracket, the middle part of the bracket is engaged with a compression assembly along the transverse direction. The beneficial effect is that: the present invention uses two symmetrically distributed compression components to respectively clamp the shaft centers at both ends of the shaft parts, and then drives the thimble down to compress the fixed shaft parts through the engagement of the threaded sleeve and the mounting plate. The outer circular surface and make the spring pre-tighten for a certain distance, and then drive the thimble at the bottom of the pressure rod to rotate around the outer circular surface of the shaft part by sliding the sliding rod and the guide rod two along the sliding ring groove and the guiding ring groove respectively. The thimble follows the contour of the outer circular surface of the shaft part and drives the marker pen to leave a measurement image of the roundness error of the shaft part on the sticker surface of the collar one.

Description

technical field [0001] The invention relates to the field of detection devices for shaft parts, in particular to an image-based roundness detection device. Background technique [0002] Roundness error is one of the frequently inspected items of shaft parts, but it is difficult to accurately measure the roundness error of parts. The roundness error is mostly measured by contact measurement. The commonly used measurement methods usually include: shaft center reference method, coordinate method, two-point method and three-point method, etc., but at present, when using the axis center reference method to measure the roundness error of the outer circular surface of shaft parts, it is impossible to accurately obtain the measurement image of the roundness error, resulting in The roundness error of such parts cannot be displayed intuitively during measurement, which ultimately makes it very inconvenient to record the measurement. Contents of the invention [0003] The purpose of...

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Problems solved by technology

[0002] Roundness error is one of the frequently inspected items of shaft parts, but it is difficult to accurately measure the roundness error of parts. The roundness error is mostly measured by contact measurement. The commonly used measurement methods usually include: shaft center reference method, coordinate method, two-point method and three-point method, etc., but at present, when using the axis center reference method to measure the roundness error of the outer circular surface of shaft parts, it is impossible to accurately obtain the measurement image of the roundness error, resulting in The roundness error of such parts cannot be displayed intuitively during measurement, which ultimately makes it very inconvenient to record the measurement

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