Multipurpose coating and plating layer laser measuring arm

Abstract

The invention discloses a multipurpose coating and plating layer thickness measuring arm which comprises a measuring system, a clutch device, a transmission system and a rotation device. The measuring system adopts a laser probe to measure the thickness of a coating and plating layer on a measured surface, the clutch device is used for achieving separation and meshing of the measuring system and the transmission system, the transmission system is used for driving the laser probe of the measuring system to rotate a certain angle, and the rotation device is used for achieving switchover of the measuring system between a general working mode and a special working mode. The measuring accuracy of the measuring arm is influenced by the laser probe and the transmission device together. The multipurpose coating and plating layer laser measuring arm has the advantages of being convenient to operate and high in efficiency. Measurement of parts of various specifications can be achieved on one device.

Description

technical field [0001] The invention relates to an automatic detection platform for coating thickness, in particular to a multi-purpose coating laser measuring arm, which is used for measuring the coating thickness of objects, especially the coating thickness inside long rotary parts. Background technique [0002] In order to meet certain requirements, most industrial products need to add a coating on their surface, and whether the thickness of the coating is uniform or not affects the appearance and service life of the product. For more precise products, it may be due to the coating of a certain part. The unqualified thickness will reduce its accuracy or lose its use value. Therefore, the coating thickness measurement system must have the characteristics of high precision and high efficiency. [0003] At present, most of the existing coating thickness gauges are simple thickness gauges, which have simple thickness measurement structure, convenient operation and low cost, a...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing coating thickness gauges are simple thickness gauges, which have simple thickness measurement structure, convenient operation and low cost, and can be used to measure the coating thickness of various shapes of parts. The disadvantages are: the measurement accuracy is not high, And the measurement requires manual participation, limited to short-term detection, not suitable for rapid detection of the coating thickness of batch precision parts, and there are operational difficulties in measuring the coating thickness of the multi-sided inner wall of cylindrical parts

In addition, there are some special-purpose imported thickness measuring equipment. The thickness measuring structure adopts the method of combining the measuring arm and the workbench. When working, the probe head rotates and the workpiece moves forward in a straight line. The advantage of this method is that the number of instrument channels is small, and the industrial computer The consumption is small, and the cost of the equipment measurement part is low. The disadvantages are: the mechanical design is difficult, the machining accuracy is high, the signal pickup technology is complicated, and the machining cost is high.

[0004] At present, there are several types of non-contact measurement methods for the coating thickness: 1. The thickness measurement method of the electric quantity method, which has the advantage of being convenient and quick, and can realize real-time measurement of the coating thickness, but the disadvantage is that the measurement accuracy is not high

2. The electrolytic method for thickness measurement has the advantages of accurate measurement, no influence of body materials, and good reproducibility, but this method requires electrolyte, the area of ​​the work site is large, the measurement coating is limited to metal materials, and the work efficiency is low. insufficient

3. Magnetic thickness measurement. The magnetic thickness measurement instrument has the advantages of high sensitivity, wide measurement range, light instrument, and simple operation; its disadvantage is that it is easily affected by various interference factors and has a narrow application range.

4. Ultrasonic thickness measurement. The ultrasonic thickness gauge has the advantages of non-contact and can adapt to high temperature environments, but it has the disadvantages of low energy conversion efficiency of the probe, large device size and heavy weight.

Images