Spring concentricity and verticality measuring meter and its measurement method

Abstract

The invention belongs to the technical field of image measurement, particularly relates to a measurement device for measuring concentricity and perpendicularity of a compression spring, which comprises a camera disposed on a cloud platform; a backlight plate disposed opposite to the camera for projecting uniform beam; a rotating base for fixing a spring to be measured; a cylinder and a cylinder head shaft for fixing the spring position and pressing the spring; a cloud platform for adjusting the viewing angle of the camera; and a computer for calculating and measuring the concentricity and perpendicularity of the spring according to the image signal collected by the camera. The invention also provides a method for measuring the concentricity and perpendicularity of the compression spring by utilizing the measurement device. The inventive measurement device can completely replace the measurement manner for measuring the concentricity and perpendicularity of a compression spring during compression spring production process by using an explorator or a contour projection measurement device, and realizes high speed online measurement and quality control of spring production. The inventive measurement device has good measurement accuracy and stability.

Description

technical field [0001] The invention belongs to the technical field of image measurement, and in particular relates to a measuring device and method for concentricity and perpendicularity of compression springs. Background technique [0002] Compression spring is an important component in mechanical structure. It is often sleeved on the bearing for compression movement, and the coordinated movement of the entire system is controlled through the close cooperation of the two. Good concentricity and verticality of the spring is the premise to ensure coordinated movement. If there is a deviation, the bearing will be worn, which will directly affect the service life of the bearing and the stability of the system. Therefore, the detection of the concentricity and verticality of the spring is compression An important link in the spring production process. [0003] Existing methods for detecting spring concentricity and verticality mainly use scales or standard block profiling met...

AI Technical Summary

Problems solved by technology

[0003] Existing methods for testing spring concentricity and verticality mainly use scales or standard block profiling methods, which are completely manual. Therefore, the measurement speed is low and the accuracy is difficult to guarantee, which cannot meet the needs of spring assembly line production

Others use a profile projection measuring instrument to enlarge and project the spring onto a screen with a two-dimensional scale, and solve these quantities through manual observation. Although the measurement accuracy is high, the image needs to be aligned and adjusted during measurement, and the measurement efficiency is low. For sampling inspection

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