DD282283A5 - METHOD AND DEVICE FOR MEASURING ROUND AND EQUIVALENTS, AND RECTANGULAR AND FLAT ROLLING GRADES - Google Patents

Abstract

The invention relates to a method and a device for measuring round and equivalent as well as rectangular and flat rolling stock sections for fine and medium-high rolling mills. According to the invention, the object is achieved by the fact that, in the method, the measurement values are formed from two partial measurements in two measurement planes, the receivers of one measurement plane interacting with the receivers of the other measurement plane. When setting up the method, the measuring planes are arranged at a variable distance parallel to each other in the transport direction of the rolling stock and the Meszachsen the one Meszebene and the Meszachsen the other Meszebene asymmetrically provided by a distance to a central Fuehrungsachse a Fuehrungsdurchmessers. FIG {procedures; Facility; Measure up; Walzgutquerschnitte; Meszachsen; Measuring plane, symmetrical; Distance, variable; master axis; Fuehrungsdurchmesser; Intersection}

Description

For this 1 page drawing

Field of application of the invention

The invention relates to a method and a device for measuring round and equivalent as well as rectangular and flat rolling stock sections for fine and medium-high rolling mills.

Characteristic of the known state of the art

According to the brochure "ORBIS" of the company Intergrated Photomatrix LDT, Great Britain, from 1986 a worship and a device for measuring round and equivalent as well as rectangular and flat rolling stock cross sections is known, whereby a measuring axis rotates around the rolling stock, whereby the electrical supply of the measuring head via sliding contacts The measurement is carried out spirally over the length of the rolling stock, the measured value being recorded by means of diode-line cameras, the disadvantage being that the measuring precision decreases as the rolling stock diameter increases.

? * Jhritte described, in the brochure "Dulas measuring system" of Bruno Richter, Germany, from löi'i i t a -..- "meres method unc ¹ a device for measuring round and equivalent and rectangular and flat Walzgutque. Here, a measuring axis pivots about the rolling stock up to an angle of 190 ". The rolling stock is scanned over the length in an oscillating manner. The measured value is recorded by a receiver with only one diode. It turns out that the measuring accuracy also decreases here with increasing rolling stock diameter.

Object of the invention

The aim of the invention is to maintain the accuracy of measurement regardless of the rolling stock diameter.

Explanation of the essence of the invention

The invention is based on the object, eh. To provide methods and a device that allows the measurement of the rolling diameter> 30mm.

(In accordance with the invention the object is achieved by the fact that in method dia measured values are formed from two partial measurements in two measuring planes, the receivers of one measuring plane interacting with the receivers of the other measuring plane.

In the device, the measuring planes are arranged at a variable distance parallel to one another in the transport direction of the rolling stock and the measuring axes of the one measurement plane and the measuring axes dor other measurement plane asymmetrically provided by a distance to a central guide axis of a guide diameter, wherein an intersection of the measuring axes of a measurement plane in one quadrant and an intersection of the measuring axes of the other measuring plane lies in another quadrant.

embodiment

The invention will be explained in more detail below using an exemplary embodiment. In the drawing, the invention is shown in principle.

The device consists of two separate measurement levels MEi and ME ₂ , which are arranged one behind the other in the transport direction of the rolling stock W. The two measurement levels ME, and ME ₂ are rigidly connected to each other and arranged parallel to each other. The distance A between the two measurement levels ME, and ME ₂ depends on the construction and is 20 to 150mm.

The measuring axes M _1x and M _{1y of} the measuring plane ME ₁ and the measuring axes M _2x and M _{2y of} the measuring plane ME ₂ are arranged asymmetrically about the distance X ₁ = x ₂ = Y ₁ = y ₂ to the central guide axis Z of the guide diameter D. This results in an asymmetrical arrangement of the intersections P ₁₂ and P ₂₂ to the intersections P _1. , And P ₂₁ . The intersections Pi _-2 and P ₂₂ are thus in different quadrants. The transmitters S _1x and S _1y and the receivers E _1x and E _1y are located on the measurement plane ME ₁ , the measurement axes H _1x and B _{1 v being arranged} at 90 ° to each other. The other transmitters S _2x and S _2y and the receivers E _2x and E _2y , on the other hand, are located on the measurement plane ME ₂ , the measurement axes H _2x and B _2y likewise being arranged at 90 ° to one another. The guide diameter D, the rolling stock diameter Wd and the distances X ₁ , x ₂ , Y ₁ and y ₂ are related. With the size of the measuring range. If the rolling stock W passes through the device, the rolling stock diameter in the measuring plane ME _{1 is} partially scanned by the respective measuring axes H _1x and B _1y . The guide diameter D plays the maximum limit of rolling material W moving in the axial and radial direction. The partial measurement results are stored electronically on an ongoing basis. The same scanning then takes place in the measuring plane ME _{2 of} the device with the measuring axes H _2x and B _2y . Also these Teilmeßergebnisse are constantly stored. The distance A between the measurement levels ME ₁ and ME ₂ plays no role in the Gesamtmeßgenauigkeit, especially as any distortions are electronically compensated. Both Teilmeßergebnisse the ME level ME ₁ and ME ₂ are assembled without loss of time to a total value for the respective technological parameters of the rolling stock W. This process is repeated continuously and proceeds in a continuous manner as long as the rolling stock W is in the device. The technical parameters of the rolling stock W; formed by the measurement levels ME ₁ and ME ₂ , formed by the pivoting of the device by means of electronic evaluation and displayed on a screen. By the invention it is possible to maintain the measuring accuracy independently of the rolling stock diameter.

Claims (2)

1. A method for measuring round and equivalents and rectangular and flat Walzgutquerschnitten, wherein the measurement is carried out in less than 90 ° perpendicular rigid measuring axes, characterized in that the measured values of two sub-measurements in two measuring planes (ME ₁ and MF. _Z) formed with the receivers (E _1x and E _2x ) _interacting with the receivers (E _1y and E y). 2. Device for measuring round and equivalent and rectangular and flat rolled material cross sections, in which the measuring axes or measurement plane are arranged rigidly at 90 ° perpendicular to each other, characterized in that the measurement planes (ME ₁ , ME ₂ ) at a variable distance (A) in parallel one behind the other in the transport direction of the rolling stock (W) are arranged and measuring axes (Hi _x , B _ly ) of the measuring plane (MEj) ^{ur |} d measuring axes (H _2x , B ₂ ^) of the measuring plane (ME ₂ ) asymmetrically by a distance (x, = x ₂ = Y ₁ = y ₂ ) to a central guide axis (Z) of a guide diameter (D) are provided, wherein a Intersection point (P ₁₂ ) of the measuring axes (H _2x , B _2y ) of the measurement plane (ME ₁ ) in a quadrant and an intersection point (P ₂₂ ) of the measuring axes (H _2x , B _2y ) of the measurement plane (ME ₂ ) lie in another quadrant ,