A method for measuring the size of a universal rolling mill window

Abstract

The invention discloses a method for measuring the size of a universal rolling mill window, which is used for measuring the size of the universal rolling mill window. The method uses a laser tracker to measure the size of the universal rolling mill window without locking the rolling mill. The invention solves the problem of difficulty in measuring the universal rolling mill, has high measuring efficiency, and has little impact on other maintenance work.

Description

Technical Field

[0001] The invention relates to the field of measurement technology, and in particular to a method for measuring the size of a universal rolling mill window. Background Art

[0002] The universal rolling mill has a special structure. When the operating side and the transmission side are locked, the internal space is small. However, the operating side of this rolling mill can be pulled out along the track as a whole during maintenance, which brings great difficulties to the measurement of the rolling mill arch. When the rolling mill is in a locked state, the internal space is small and there is no instrument installation point. When the operating side is pulled out, it is difficult to find the overall center line of the operating side and the transmission side. This invention was made to solve the measurement problem of this rolling mill.

[0003] Comparative Data 1: A method for online detection of spatial position and dimension accuracy of cold rolling mill window

[0004] An online detection method for the spatial position dimension accuracy of a cold rolling mill window belongs to the spatial position dimension measurement of metallurgical equipment, and particularly relates to the spatial position dimension detection of a rolling mill window. The method is characterized in that the detection is carried out by using a laser detection device, and the following methods are used: station setting, detection and establishment of the geoid, rolling production center line, rolling mill window coordinate system origin, and rack window lining plate surface detection and opening dimension accuracy analysis. The advantages are that the method has a novel concept, convenient equipment operation, less personnel, and high efficiency, and can accurately detect the spatial opening dimension of the rolling mill window lining plate; the spatial dimension accuracy status of the cold rolling mill window can be intuitively understood, the spatial dimension accuracy operating status and deterioration trend of the equipment can be mastered, the rolling mill precision management work level can be improved, the requirements of the rapid production rhythm of cold rolling can be met, and the smooth rolling production can be ensured. This method cannot be used for universal rolling mill detection.

[0005] Comparative Data 2: A method for measuring PC mill window size using a laser tracker

[0006] The present invention relates to a method for measuring the size of a PC rolling mill window using a laser tracker, and belongs to the technical field of steel rolling equipment management methods. The technical scheme of the present invention is: calculating the distance from the measuring point to the reference plane; calculating the archway spacing and the liner spacing according to the point-to-plane functional vector property and the spatial position relationship, that is, according to the distance between the laser tracker target mirror and the plane base used and the spatial position relationship between the radius of the laser tracker and the measured object; and comparing and calculating with the design value to obtain the deviation of the archway window size. The beneficial effect of the present invention is: only using the laser tracker to take points on the archway reference point and the liner, through SA software simulation and formula calculation, the archway window size and deviation can be obtained, the accuracy can reach microns, and the measurement time only needs 1.5 hours, which is 2.5 hours shorter than the measurement time of the traditional method, so as to accurately and efficiently measure the mill archway window size. This method cannot be used for universal rolling mill detection.

[0007] Comparative Data 3: A method for assembling a six-high rolling mill and detecting assembly accuracy using a laser tracker

[0008] The present invention relates to the technical field of rolling mill equipment detection, and in particular to a method for assembling a six-roll rolling mill and detecting assembly accuracy using a laser tracker. Level rulers, level gauges, squares, feeler gauges, etc. are used to assemble and roughly adjust the positions on the mill bottom plate and frame assembly that need to be adjusted and measured, and the accuracy is within 0.05mm / m. A laser tracker with an accuracy of 0.001mm is used for data detection. A target ball is placed at each position that needs to be measured, and the laser emitted by the host is shot onto the target ball and returned to the host. The return beam is received by the detection system and is used to measure the spatial position of the target and obtain spatial coordinate data. The detection method combining the laser tracker and the traditional measurement method is used to perform data detection on the assembly of the six-roll rolling mill, and the assembly rolling mill is adjusted for accuracy based on the surveyed data to meet the various accuracy requirements of the final rolling mill assembly, realize rapid assembly of the rolling mill, and obtain high-quality rolling mill assembly accuracy that meets the design requirements. This method cannot be used for universal rolling mill detection. Summary of the invention

[0009] The purpose of the present invention is to provide a method for measuring the size of a universal rolling mill window, which uses a laser tracker to measure the size of the universal rolling mill window without locking the rolling mill.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0011] The present invention provides a method for measuring the size of a universal rolling mill window, comprising:

[0012] Set up the laser tracker in a stable position, level and calibrate the instrument;

[0013] Measure the reference surface on the operating side and fit it into a surface respectively;

[0014] Measure the archway on the operating side and fit them into surfaces respectively; measure the reference surface on the transmission side in a point arrangement manner as shown in the figure and fit them into surfaces respectively;

[0015] Measure the transmission side arch and fit them into surfaces respectively;

[0016] The operation side reference surface is used to fit the operation side middle surface; the transmission side reference surface is used to fit the transmission side middle surface; the inlet operation side upper reference surface and the inlet operation side lower reference surface are averaged to form point a; the outlet operation side upper reference surface and the outlet operation side lower reference surface are averaged to form point b; point a and point b are connected to form a straight line A, and the intersection point c of straight line A and the operation side middle surface is found; the inlet transmission side upper reference surface and the inlet transmission side lower reference surface are averaged to form point d; the outlet transmission side upper reference surface and the outlet transmission side lower reference surface are averaged to form point e; point d and point e are connected to form a straight line B, and the intersection point f of straight line B and the transmission side middle surface is found;

[0017] Establish a first coordinate system: the first element is the intersection point c, and the second element is the mid-surface of the operating side; establish a second coordinate system: the first element is the intersection point f, and the second element is the mid-surface of the transmission side;

[0018] Activate the first established coordinate system and read out the centroid coordinate values ​​of the operating side arch respectively; activate the second established coordinate system and read out the centroid coordinate values ​​of the transmission side arch respectively; the centroid coordinate values ​​of the operating side arch and the centroid coordinate values ​​of the transmission side arch are the measured values ​​of the rolling mill arch.

[0019] Further, it specifically includes:

[0020] (1) Set up the laser tracker in a stable position, level and calibrate the instrument, and establish the geoid;

[0021] (2) measuring the reference surfaces on the operation side, including: the upper reference surface on the inlet operation side; the upper reference surface on the outlet operation side; the lower reference surface on the inlet operation side; and the lower reference surface on the outlet operation side, and fitting them into surfaces respectively;

[0022] (3) Measure the operation side arches, including: the upper arch on the entrance operation side, the upper arch on the exit operation side, the lower arch on the entrance operation side, and the lower arch on the exit operation side, and fit them into surfaces respectively;

[0023] (4) measuring the transmission side reference surfaces, including: the upper reference surface of the inlet transmission side, the upper reference surface of the outlet transmission side, the lower reference surface of the inlet transmission side, and the lower reference surface of the outlet transmission side, and fitting them into surfaces respectively;

[0024] (5) Measure the transmission side arches, including: the upper arch on the inlet transmission side, the upper arch on the outlet transmission side, the lower arch on the inlet transmission side, and the lower arch on the outlet transmission side, and fit them into surfaces respectively;

[0025] (6) using the upper reference surface of the inlet operation side, the upper reference surface of the outlet operation side, the lower reference surface of the inlet operation side, and the lower reference surface of the outlet operation side to fit into the middle surface of the operation side;

[0026] (7) using the upper reference surface on the inlet transmission side, the upper reference surface on the outlet transmission side, the lower reference surface on the inlet transmission side, and the lower reference surface on the outlet transmission side to fit into the transmission side middle surface;

[0027] (8) The points on the upper reference plane of the inlet operation side and the lower reference plane of the inlet operation side are averaged as point a; the points on the upper reference plane of the outlet operation side and the lower reference plane of the outlet operation side are averaged as point b; point a and point b are connected into a straight line A, and the intersection point c of the straight line A and the middle surface of the operation side is found;

[0028] (9) The points on the upper reference plane of the inlet transmission side and the lower reference plane of the inlet transmission side are averaged as point d; the points on the upper reference plane of the outlet transmission side and the lower reference plane of the outlet transmission side are averaged as point e; connect point d and point e into a straight line B, and find the intersection point f of the straight line B and the middle surface of the transmission side;

[0029] (10) Establishing a first coordinate system: the first element is the intersection point c, and the second element is the mid-surface of the operating side;

[0030] (11) Establish a second coordinate system: the first element is the intersection point f, and the second element is the middle surface of the transmission side;

[0031] (12) Activate the first established coordinate system and read out the centroid coordinates of the archway on the operating side:

[0032] The coordinates of the centroid of the upper archway on the entrance operation side are: y 2.1 ;

[0033] The centroid coordinates of the archway on the exit operation side are: 2.2 ;

[0034] The centroid coordinates of the lower archway on the entrance operation side are: y 2.3；

[0035] The centroid coordinates of the lower archway on the exit operation side are: y 2.4 ;

[0036] (13) Activate the established second coordinate system and read out the coordinates of the centroid of the transmission side archway:

[0037] The coordinates of the centroid of the archway on the inlet transmission side are: 4.1 ;

[0038] The coordinates of the centroid of the archway on the outlet transmission side are: y 4.2 ;

[0039] The coordinates of the center of mass of the lower archway on the inlet transmission side are: 4.3 ;

[0040] The coordinates of the center of mass of the lower archway on the outlet transmission side are: y 4.4 ;

[0041] (14)y 2.1 ,y 2.2 ,y 2.3 ,y 2.4 ,y 4.1 ,y 4.2 ,y 4.3 and 4.4 That is the measured value of the rolling mill arch.

[0042] Compared with the prior art, the beneficial technical effects of the present invention are:

[0043] The invention solves the problem of difficult measurement of a universal rolling mill, has high measurement efficiency and little impact on other maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Figure 1 A side view of the operation of a method for measuring the size of a universal rolling mill window;

[0046] Figure 2 A transmission side view of a method for measuring the size of a universal rolling mill window;

[0047] Figure 3 A method for measuring the size of a universal rolling mill window is provided, showing a measuring point view from the operating side;

[0048] Figure 4 A method for measuring the size of a universal rolling mill window is provided, which shows a transmission side measuring point view;

[0049] Explanation of the reference numerals: 1.1-upper reference plane of the inlet operating side; 1.2-upper reference plane of the outlet operating side; 1.3-lower reference plane of the inlet operating side; 1.4-lower reference plane of the outlet operating side; 2.1-upper archway of the inlet operating side; 2.2-upper archway of the outlet operating side; 2.3-lower archway of the inlet operating side; 2.4-lower archway of the outlet operating side; 3.1-upper reference plane of the inlet transmission side; 3.2-upper reference plane of the outlet transmission side; 3.3-lower reference plane of the inlet transmission side; 3.4-lower reference plane of the outlet transmission side; 4.1-upper archway of the inlet transmission side; 4.2-upper archway of the outlet transmission side; 4.3-lower archway of the inlet transmission side; 4.4-lower archway of the outlet transmission side; 5-middle surface of the operating side; 6-middle surface of the transmission side; 7-earth level. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1 , 2 , 3, and 4 further describe the implementation of the technical solution in detail in order to more clearly describe the structure and working principle of the ground gate.

[0051] A method for measuring the size of a universal rolling mill window, the specific implementation of the present invention is:

[0052] (1) Set up the laser tracker in a stable position, level and calibrate the instrument, and establish the geoid 7;

[0053] (2) Figure 3 The operation side reference surface 1 is measured by point arrangement, including: an upper reference surface 1.1 on the inlet operation side; an upper reference surface 1.2 on the outlet operation side; a lower reference surface 1.3 on the inlet operation side; and a lower reference surface 1.4 on the outlet operation side, and each of them is fitted into a surface;

[0054] (3) Figure 3 The operation side archway 2 is measured in a point distribution manner, including: an upper archway 2.1 on the inlet operation side, an upper archway 2.2 on the outlet operation side, a lower archway 2.3 on the inlet operation side and a lower archway 2.4 on the outlet operation side, and each of them is fitted into a surface;

[0055] (4) Figure 4 The transmission side reference surface 3 is measured by point arrangement, including: an inlet transmission side upper reference surface 3.1, an outlet transmission side upper reference surface 3.2, an inlet transmission side lower reference surface 3.3, and an outlet transmission side lower reference surface 3.4, and each is fitted into a surface;

[0056] (5) Figure 4 The transmission side arch 4 is measured by point arrangement, including: an upper arch 4.1 on the inlet transmission side, an upper arch 4.2 on the outlet transmission side, a lower arch 4.3 on the inlet transmission side, and a lower arch 4.4 on the outlet transmission side, and each of them is fitted into a surface;

[0057] (6) using the inlet operation side upper reference surface 1.1, the outlet operation side upper reference surface 1.2, the inlet operation side lower reference surface 1.3 and the outlet operation side lower reference surface 1.4 to fit into the operation side middle surface 5;

[0058] (7) The inlet transmission side upper reference surface 3.1, the outlet transmission side upper reference surface 3.2, the inlet transmission side lower reference surface 3.3 and the outlet transmission side lower reference surface 3.4 are fitted into the transmission side middle surface 6;

[0059] (8) The upper reference surface 1.1 on the inlet operation side and the lower reference surface 1.3 on the inlet operation side are averaged as point a; the upper reference surface 1.2 on the outlet operation side and the lower reference surface 1.4 on the outlet operation side are averaged as point b; point a and point b are connected into a straight line A, and the intersection point c of the straight line A and the operation side middle surface 5 is found;

[0060] (9) The upper reference surface 3.1 on the inlet transmission side and the lower reference surface 3.3 on the inlet transmission side are averaged to form point d; the upper reference surface 3.2 on the outlet transmission side and the lower reference surface 3.4 on the outlet transmission side are averaged to form point e; point d and point e are connected to form a straight line B, and the intersection point f of the straight line B and the transmission side middle surface 6 is found;

[0061] (10) Establish coordinate system 1: the first element is the intersection point c, and the second element is the operating side mid-surface 5;

[0062] (11) Establish coordinate system 2: the first element is the intersection point f, and the second element is the transmission side mid-surface 6;

[0063] (12) Activate and establish coordinate system 1, and read out the centroid coordinates of the operating side archway 2 respectively:

[0064] The centroid coordinates of the upper archway 2.1 on the entrance operation side are: 2.1 ;

[0065] The centroid coordinates of the archway 2.2 on the exit operation side are: y 2.2 ;

[0066] The coordinates of the center of mass of the lower archway 2.3 on the entrance operation side are: y 2.3；

[0067] The centroid coordinates of the lower archway 2.4 on the exit operation side are: y 2.4 .

[0068] (13) Activate and establish coordinate system 2, and read out the centroid coordinates of the transmission side archway 4 as follows:

[0069] The coordinates of the center of mass of the upper arch 4.1 on the inlet transmission side are: 4.1 ;

[0070] The coordinates of the centroid of the arch 4.2 on the outlet transmission side are: y 4.2 ;

[0071] The coordinates of the center of mass of the lower archway 4.3 on the inlet transmission side are: 4.3 ;

[0072] The coordinates of the center of mass of the lower arch 4.4 on the outlet transmission side are: y 4.4 .

[0073] (14)y 2.1 ,y 2.2 ,y 2.3 ,y 2.4 ,y 4.1 ,y 4.2 ,y 4.3 and 4.4 That is the measured value of the rolling mill arch.

[0074] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A method for measuring the size of a universal rolling mill window, characterized in that: Specifically include: (1) Set up the laser tracker in a stable position, level and calibrate the instrument, and establish the geoid; (2) Measure the reference surfaces on the operating side, including: the upper reference surface on the inlet operating side; the upper reference surface on the outlet operating side; the lower reference surface on the inlet operating side; and the lower reference surface on the outlet operating side, and fit them into surfaces respectively; (3) Measure the operation side archways, including: the upper archway on the entrance operation side, the upper archway on the exit operation side, the lower archway on the entrance operation side, and the lower archway on the exit operation side, and fit them into surfaces respectively; (4) Measure the transmission side reference surface, including: the upper reference surface of the inlet transmission side, the upper reference surface of the outlet transmission side, the lower reference surface of the inlet transmission side, and the lower reference surface of the outlet transmission side, and fit them into surfaces respectively; (5) Measure the transmission side arches, including: the upper arch on the inlet transmission side, the upper arch on the outlet transmission side, the lower arch on the inlet transmission side, and the lower arch on the outlet transmission side, and fit them into surfaces respectively; (6) Using the upper reference plane of the inlet operation side, the upper reference plane of the outlet operation side, the lower reference plane of the inlet operation side and the lower reference plane of the outlet operation side to fit the operation side mid-plane; (7) The upper reference surface of the inlet transmission side, the upper reference surface of the outlet transmission side, the lower reference surface of the inlet transmission side and the lower reference surface of the outlet transmission side are used to fit the transmission side mid-surface; (8) Average the points of the upper reference plane on the inlet operation side and the lower reference plane on the inlet operation side to form point a; average the points of the upper reference plane on the outlet operation side and the lower reference plane on the outlet operation side to form point b; connect point a and point b into a straight line A, and find the intersection point c of straight line A and the middle surface of the operation side; (9) Average the points of the upper reference plane on the inlet transmission side and the lower reference plane on the inlet transmission side to form point d; average the points of the upper reference plane on the outlet transmission side and the lower reference plane on the outlet transmission side to form point e; connect point d and point e to form a straight line B, and find the intersection point f of the straight line B and the transmission side mid-surface; (10) Establish the first coordinate system: the first element is the intersection point c, and the second element is the mid-plane of the operating side; (11) Establish the second coordinate system: the first element is the intersection point f, and the second element is the middle surface of the transmission side; (12) Activate the first established coordinate system and read out the coordinates of the center of mass of the archway on the operating side: The coordinates of the center of mass of the upper archway on the entrance operation side are: y 2.1 ; The coordinates of the centroid of the archway on the exit operation side are: y 2.2 ; The coordinates of the center of mass of the lower archway on the entrance operation side are: y 2.3； The coordinates of the centroid of the lower archway on the exit operation side are: y 2.4 ; (13) Activate the established second coordinate system and read out the coordinates of the center of mass of the transmission side archway: The coordinates of the center of mass of the archway on the inlet transmission side are: y 4.1 ; The coordinates of the center of mass of the archway on the outlet transmission side are: y 4.2 ; The coordinates of the center of mass of the lower archway on the inlet transmission side are: 4.3 ; The coordinates of the center of mass of the lower archway on the outlet transmission side are: y 4.4 ; (14) y 2.1 、y 2.2 、y 2.3 、y 2.4 、y 4.1 、y 4.2 、y 4.3 and y 4.4 This is the measured value of the rolling mill arch.

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