How to measure the size of 304 stainless steel honed tube

- Jun 24, 2019-

304 stainless steel honed tube is normal. We need to use vernier caliper and spiral micrometer when measuring the size. This can measure the positive and negative of the thick wall honing pipe to reach the number of wires. According to the different technical requirements of the manufacturer, the thick wall honing pipe length measuring system There are a variety of length measurement methods. There are mainly the following:

 

1, the grating rule length

 

The basic principle is that two fixed length grating scales are respectively arranged on the outer sides of the stainless steel honing pipe. The rodless cylinder is used to drive the grating ruler to the two ends of the thick wall honing pipe, and the length of the stainless steel honing pipe is measured by the interference phenomenon of light.

The feature is high accuracy.

 

2, camera length measurement.

 

The camera length measurement is the use of image processing to measure the length of the stainless steel honing tube. The principle is to install a series of photoelectric switches at equal distances on one section of the thick-wall honing pipe conveyor roller, and to add light sources and cameras to the other segment. When the thick wall honing pipe passes through this area, the length of the thick wall honing pipe can be determined according to the position of the photoelectric switch on the screen taken by the camera.


The feature is that on-line measurement can be realized, and the thick-walled honing pipe can obtain the length data when passing through the length measuring area without interval.

 

3, encoder length measurement

 

The principle is to install an encoder at the cylinder, use the cylinder to push the thick wall honing pipe to move on the roller table, and install a series of photoelectric switches at the same distance on the other side. When the thick wall honing pipe is pushed by the cylinder to the photoelectric switch, From the recorded encoder readings, the stroke of the cylinder is converted so that the length of the thick wall honing pipe can be calculated.

 

It is characterized by the need to raise the thick-walled honing pipe during length measurement.

 

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