Non-contact impeller run-out detection system and method

Abstract

The invention discloses a non-contact impeller run-out detection system, which is provided with an impeller run-out detection device for fixing an impeller to be detected, a servo motor for driving the impeller to rotate is fixed on the impeller run-out detection device, the driving end of the servo motor is connected with a servo driver, the servo driver is connected with a PLC (Programmable Logic Controller), and the PLC is connected with the impeller run-out detection device. A laser distance sensor for acquiring distance data with the rotating surface of the impeller is arranged on the impeller run-out detection device, the laser distance sensor is connected with an industrial personal computer through a data acquisition card, and the industrial personal computer is communicated with a PLC (Programmable Logic Controller). The device can achieve the detection of the axial and radial circle run-out values of the impeller, and is used for detecting the parallelism of the surface contour of the impeller relative to the axis and the deformation of the surface of the welded impeller. Through a non-contact measurement method, mechanical wear caused by contact measurement of a common dial gauge and the like is avoided, and long-term use is facilitated. A data processing method based on datum reference is applied, a non-contact measurement mode is improved, and measurement errors caused by assembly errors are greatly reduced.

Description

technical field [0001] The invention relates to a non-contact detection system for circular runout shape and position tolerances of water pump impellers and the like, which can be extended and applied to the non-contact detection systems for circular runout shape and position tolerances of other rotary workpieces. Background technique [0002] In water pumps, mechanical transmission is essential. Structures such as water pump impellers are widely used as important transmission devices in power pumps. The relevant indicators of these structures will affect the operation and technical indicators of the water pump. The circular runout of the impeller is one of them. An important detection index. [0003] The commonly used means of detecting the runout in many factories is still to use the pointer dial indicator, and the operator watches the pointer on the dial indicator and records the change. In addition, in some factories, automatic detectors are used to detect the circular ...

AI Technical Summary

Problems solved by technology

[0004] The existing method is still to use the pointer-type dial gauge. The operator watches the pointer on the dial gauge and records the changes. The measurement results rely heavily on manual experience; although some contact detectors are less However, the mechanical wear caused by the long-term use of measuring instruments such as dial indicators will lead to a decrease in detection accuracy, which will eventually lead to inaccurate detection results, which will cause a large quality hidden danger to the quality inspection of impellers.

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