Non-contact type online roll profile curve measuring device and method

Abstract

The invention relates to the field of roll profile curve measurement, in particular to an online roll profile curve measuring device and an online roll profile curve measuring method. The non-contact type online roll profile curve measuring device comprises a reference surface, a measuring platform, a slide rail, a sliding block, a first sliding block probe, a second sliding block probe, a third sliding block probe and a slide rail probe. The reference surface and the slide rail are arranged on the measuring platform. The sliding block is arranged on the slide rail. The first sliding block probe is arranged on one side close to a roll. The non-contact type online roll profile curve measuring method comprises the steps of: first, positioning the measuring platform; then measuring, and calculating the correction by using the reference surface; and finally, obtaining the roll profile curve by moving the sliding block on the slide rail and repeating the steps in each measuring position. According to the non-contact type online roll profile curve measuring device and the non-contact type online roll profile curve measuring method provided by the invention, through correction of the reference surface, error caused by vibration of a sensor on the slide rail of the measuring platform is compensated. The roll profile curve can be still measured accurately under server environment in the field.

Description

technical field [0001] The invention relates to the field of roll shape curve measurement, in particular to an online roll shape curve measurement device and method. Background technique [0002] There are two types of measuring the roll shape curve of the roll: contact type and non-contact type. The contact type is to touch the sensor probe to the surface of the roll. displacement between locations. If the position of the probe is stationary, then the roll curve is known. One advantage of contact measurement is that the relative vibration between the sensor head and the roll is zero, and this part of the error is eliminated. But it also has disadvantages: the probe wears a lot and scratches the surface of the roll. This problem is especially prominent if the roll speed is high. In order to correct the error caused by the fact that the probe is not perpendicular to the surface of the measured body, the design of the mechanical arm behind the probe is relatively complicat...

AI Technical Summary

Problems solved by technology

But it also has disadvantages: the probe wears a lot and scratches the surface of the roll

The reason is that the environment of the rolling mill is harsh, especially due to the large vibration of the rolls, a relatively static installation point for the measurement platform cannot be found, and the sensor cannot vibrate completely synchronously with the measurement platform

Images