A method for adjusting a U-shaped seat of a bending section of a continuous-casting machine support frame

Abstract

The application discloses a kind of continuous casting machine support frame bending section U type seat adjustment method, when detecting arc using laser tracker, the difference between detection value and design value can only reflect the adjustment amount of U type seat in horizontal and vertical directions, the adjustment amount measured by sample shaft is indirect, not the direct adjustment amount of plus-minus shim, which causes inconvenience for arc fine adjustment.In the past engineering, it is mainly adjusted several times by gradual method to meet the requirements.The application relates to a kind of continuous casting machine support frame bending section U type seat adjustment method, which is used for measuring the coordinate position of U type seat of continuous casting machine, and has the characteristics that the problem that U type seat needs to be repeatedly adjusted to ideal position by adding or subtracting shims during maintenance is solved, the amount of adding or subtracting shims is directly derived using geometric relationship, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of sports equipment, and in particular to a method for adjusting the U-shaped seat of the curved section of a continuous casting machine support frame. Background Technology

[0002] Currently, due to the complex interrelationships and structural characteristics of the sector sections in slab continuous casting machines, the difference between the detected and designed values ​​when using laser trackers to detect the arc shape only reflects the horizontal and vertical adjustment amounts of the U-shaped support. The adjustment amount measured through the sample shaft is indirect, not a direct adjustment amount obtained by adding or subtracting shims, which causes inconvenience for fine-tuning the arc shape. In previous projects, the requirements were mainly met through a gradual method of adjustments in several stages, but the efficiency of the gradual arc adjustment method is not high.

[0003] Comparative Data 1: This invention provides a method for calculating the coordinates of the roller trains in the continuous bending and straightening section of a slab continuous casting machine, including methods for calculating the coordinates of the roller trains in the bending section and the straightening section. These two methods first determine and calculate various parameters of the roller trains in the continuous bending and straightening sections of the slab continuous casting machine; then, based on the arc length and coordinate relationship between the starting point and tangent point trains on the bending or straightening section, a minimum optimization function is established, and solved using the simplex method to obtain the coordinates of each tangent point; finally, the coordinates of each roller train are obtained based on the coordinates of each tangent point. This method cannot be used to calculate the direct addition or subtraction of shims.

[0004] Comparative Data 2: A method for fine-tuning the arc shape of a slab continuous casting machine, belonging to the field of slab continuous casting technology. The fine-tuning steps are as follows: using CAD simulation to find the relationship between the amount of shims added or subtracted from the support of the sector segment and the arc shape change, and checking the original data; calculating the adjustment amount based on the measured original data and using a solver program; and comprehensively analyzing the theoretical results based on the measured original data and using a solver program, determining the final amount of shims to be added or subtracted, with the guiding principle of smooth transition of the sector segment, gap value approaching the theoretical value, and minimal adjustment parts. This method cannot be used to calculate the direct addition or subtraction adjustment amount of shims.

[0005] Comparative Data 3: This invention relates to a digital rapid adjustment method for the foundation frame of a slab continuous casting machine's sector segment, comprising the following steps: S1, importing design standard values; S2, installing and adjusting the support seats of the sector segment foundation frame; S3, installing the support of the "0" segment frame; S4, positioning the sector segment foundation frame; S5, adjusting the support of the "0" segment frame; S6, measuring the sector segment foundation frame; S7, fine-tuning the sector segment foundation frame; S8, grouting the support seats of the sector segment foundation frame. This invention uses a total station to collect the coordinate values ​​of the positioning plate (non-fixed side) and U-shaped seat (fixed side) of the support seat and sector segment foundation frame, and inputs them into the continuous casting installation foundation frame adjustment calculation software for comparison with the design standard values. It outputs the analyzed deviation values ​​and drawings, which visually represent the adjustment values ​​and directions, achieving rapid and precise adjustment. It cannot be used to calculate the direct addition or subtraction of shims. Summary of the Invention

[0006] The purpose of this invention is to provide a method for adjusting the U-shaped seat of the support frame of a continuous casting machine, which is used for measuring the coordinate position of the U-shaped seat of the continuous casting machine. Its feature is that it solves the problem of repeatedly adding or subtracting shims during maintenance to adjust the U-shaped seat to the ideal position. The amount of shim addition or subtraction is directly derived by using geometric relationships, thereby improving maintenance efficiency.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This invention discloses a method for adjusting the U-shaped seat of the support frame of a continuous casting machine, comprising: setting up a laser tracker, leveling, calibrating, and establishing a horizontal ground plane; measuring the position of the reference control point and establishing a coordinate system using the reference control line; placing the measuring dummy shaft on the U-shaped seat and measuring the actual position of the dummy shaft using the laser tracker until all U-shaped seats of the casting machine are measured; fitting the axis of the actual dummy shaft position from the laser tracker measurement software, fitting the midpoint position of the axis, and recording the coordinate value of the midpoint of the axis of the actual dummy shaft position; determining the coordinate value of the midpoint of the axis of the designed dummy shaft position by referring to the drawings, and calculating the adjustment amount of adding or subtracting shims; determining the tangential and radial adjustment directions; adding or subtracting shims in the radial and tangential directions according to the calculated adjustment amount and adjustment direction.

[0009] Furthermore, after the adjustment is completed, readjust the U-shaped seat according to the above steps. If it is not adjusted properly, measure and adjust it again according to the above steps.

[0010] Furthermore, the specific steps include the following:

[0011] ① Set up the laser tracker, level, calibrate, and establish the earth's horizontal plane;

[0012] ② Measure the position of the reference control point, establish a coordinate system using the reference control line, with the origin (8) as the design center point of the arc, the X direction as the horizontal direction, i.e. the casting flow direction, and the Y direction as the vertical direction;

[0013] ③ Place the measuring dummy shaft on the U-shaped seat, check that it is in close contact with the U-shaped seat, and then use a laser tracker to measure the position of the actual measuring dummy shaft until all U-shaped seats of the casting machine have been measured.

[0014] ④ Fit the axis of the measured pseudo-axis position from the laser tracker measurement software, fit the midpoint position of the axis, and record the coordinates (X2, Y2) of the midpoint of the measured pseudo-axis position axis.

[0015] ⑤ Determine the coordinates (X1, Y1) of the midpoint of the design dummy axis by referring to the drawings, and calculate the adjustment amount for adding or subtracting shims:

[0016] The slope of line 1 is:

[0017] The equation of line 1 is: y = K1x;

[0018] The slope of line 2 is:

[0019] The intercept of line 2 is: B2 = Y1 - K2X1;

[0020] The equation of line 2 is: y = K2x + B2;

[0021] Horizontal shim adjustment amount:

[0022] Vertical shim adjustment amount:

[0023] Where: K1 is the slope of line 1;

[0024] K2 is the slope of line 2;

[0025] B2 is the intercept of line 2;

[0026] L represents the tangential shim adjustment amount;

[0027] D represents the radial shim adjustment amount;

[0028] X1 is the coordinate value of the casting flow direction at the midpoint of the design dummy shaft position axis;

[0029] Y1 is the vertical coordinate value of the midpoint of the design dummy axis position axis;

[0030] X2 is the coordinate value of the casting flow direction at the midpoint of the actual dummy shaft position axis;

[0031] Y2 is the vertical coordinate value of the midpoint of the measured pseudo-axis position axis;

[0032] ⑥ Determine the tangential and radial adjustment directions, and the specific determination method is as follows:

[0033] if Adjust the U-shaped seat in the opposite direction of the tangent;

[0034] if Adjust the U-shaped seat towards the tangential direction;

[0035] if The U-shaped seat does not need to be adjusted in the tangential direction;

[0036] If (Y2) 2 +x2 2 )>(Y1 2 +x1 2 Add shims at the radial adjustment shim position;

[0037] If (Y2) 2 +x2 2 ) < (Y1) 2 +x1 2 ), reduce the shim at the radial adjustment shim position;

[0038] If (Y2) 2 +x2 2 )=(Y1 2 +x1 2 No adjustment is made radially;

[0039] ⑦ Based on the adjustment amount and direction calculated in steps ⑤ and ⑥, add or subtract shims at the positions of the radial and tangential adjustment shims.

[0040] Furthermore, it also includes: ⑧ After the adjustment is completed, readjust the U-shaped seat according to the above steps. If it is not adjusted properly, measure and adjust it again according to the above steps.

[0041] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0042] This invention directly derives the amount of gaskets to be added or subtracted using geometric relationships, thereby improving maintenance efficiency. Attached Figure Description

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] Figure 1 A structural oblique view of a method for adjusting the U-shaped seat of the curved section of a continuous casting machine support frame;

[0045] Figure 2 A structural side view of a method for adjusting the U-shaped seat of the curved section of a continuous casting machine support frame;

[0046] Figure 3 A schematic diagram illustrating the coordinate system establishment and data analysis for a method of adjusting the U-shaped seat of the curved section of a continuous casting machine support frame;

[0047] Figure 4 This is a schematic diagram illustrating the adjustment direction of a method for adjusting the U-shaped seat of the curved section of a continuous casting machine support frame.

[0048] Explanation of reference numerals in the attached diagram: 1-U-shaped seat, 2-base, 3-radial adjustment shim, 4-tangential adjustment shim, 5-fastening bolt, 6-designed dummy shaft position, 7-actually measured dummy shaft position, 8-origin of measurement coordinates. Detailed Implementation

[0049] The implementation of the technical solution will be described in further detail below with reference to the accompanying drawings, so as to more clearly explain its structure and working principle.

[0050] As attached Figure 1 , 2 As shown in Figures 3 and 4, this invention is a method for adjusting the U-shaped seat of the curved section of the support frame of a continuous casting machine. The specific implementation of this invention is as follows:

[0051] ① Set up the laser tracker, level, calibrate, and establish the earth's horizontal plane;

[0052] ② Measure the position of the reference control points and establish a coordinate system using the reference control lines. The coordinate system is established as follows: Figure 3 As shown, the origin 8 is the design center point of the arc, the X direction is the horizontal direction (i.e. the casting flow direction), and the Y direction is the vertical direction;

[0053] ③ Place the measuring dummy shaft on the U-shaped seat 1, check that it is in close contact with the U-shaped seat 1, and then use a laser tracker to measure the actual position 7 of the dummy shaft until all U-shaped seats 1 of the casting machine have been measured.

[0054] ④ Fit the axis of the measured pseudo-axis position 7 from the laser tracker measurement software, fit the midpoint position of the axis, and record the coordinate value (X2, Y2) of the midpoint of the axis of the measured pseudo-axis position 7;

[0055] ⑤ Determine the coordinates (X1, Y1) of the midpoint of axis 6 by referring to the drawings, and calculate the adjustment amount for adding or subtracting shims:

[0056] The slope of line 1 is:

[0057] The equation of line 1 is: y = K1x;

[0058] The slope of line 2 is:

[0059] The intercept of line 2 is: B2 = Y1 - K2X1;

[0060] The equation of line 2 is: y = K2x + B2;

[0061] Horizontal shim adjustment amount:

[0062] Vertical shim adjustment amount:

[0063] Where: K1 is the slope of line 1;

[0064] K2 is the slope of line 2;

[0065] B2 is the intercept of line 2;

[0066] L represents the tangential shim adjustment amount;

[0067] D represents the radial shim adjustment amount;

[0068] X1 is the coordinate value of the casting flow direction at the midpoint of the design dummy shaft position 6 axis;

[0069] Y1 is the vertical coordinate value of the midpoint of the design dummy axis position 6 axis;

[0070] X2 is the measured coordinate value of the casting flow direction at the midpoint of axis 7, which is the actual position of the dummy shaft.

[0071] Y2 is the vertical coordinate value of the midpoint of the measured pseudo-axis position 7 axis.

[0072] ⑥ Determine the tangential and radial adjustment directions, and the specific determination method is as follows:

[0073] if like Figure 4 As shown, the U-shaped seat is adjusted in the opposite direction to the tangent;

[0074] if like Figure 4 As shown, the U-shaped seat is adjusted in the tangential direction;

[0075] if like Figure 4 As shown, the U-shaped seat is not adjusted in the tangential direction;

[0076] If (Y2) 2 +x2 2 )>(Y1 2 +x1 2 Add a shim at position 3 of the radial adjustment shim;

[0077] If (Y2) 2 +x2 2 ) < (Y1) 2 +x1 2 ), reduce the shim at position 3 of the radial adjustment shim;

[0078] If (Y2) 2 +x2 2 )=(Y1 2 +x1 2 No adjustment is made radially;

[0079] ⑦ Based on the adjustment amount and direction calculated in steps ⑤ and ⑥, add or subtract shims at the positions of radial adjustment shim 3 and tangential adjustment shim 4;

[0080] ⑧ After the adjustment is completed, readjust the U-shaped seat according to the above steps. If it is not adjusted properly, repeat the above steps to measure and adjust it again.

[0081] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for adjusting the U-shaped seat of the curved section of a continuous casting machine support frame, characterized in that, Specifically, the steps include the following: ① Set up the laser tracker, level, calibrate, and establish the earth's horizontal plane; ② Measure the position of the reference control point, establish a coordinate system using the reference control line, with the origin (8) as the design center point of the arc, the X direction as the horizontal direction, i.e. the casting flow direction, and the Y direction as the vertical direction; ③ Place the measuring dummy shaft on the U-shaped seat (1), check that it is in close contact with the U-shaped seat (1), and then use a laser tracker to measure the actual position of the dummy shaft (7) until all U-shaped seats (1) of the casting machine are measured; ④ Fit the axis of the measured pseudo-axis position (7) from the laser tracker measurement software, fit the midpoint position of the axis, and record the coordinates (X2, Y2) of the midpoint of the measured pseudo-axis position (7). ⑤ Determine the design dummy axis position by referring to the drawings (6) and the coordinates of the midpoint of the axis (X1, Y1), and calculate the adjustment amount of adding or subtracting shims: The slope of line 1 is: ; The equation of line 1 is: ; The slope of line 2 is: ; The intercept of line 2 is: ; The equation of line 2 is: ; Horizontal shim adjustment amount: ; Vertical shim adjustment amount: ; Where: K1 is the slope of line 1; K2 is the slope of line 2; B2 is the intercept of line 2; L represents the tangential shim adjustment amount; D represents the radial shim adjustment amount; X1 is the coordinate value of the casting flow direction at the midpoint of the design dummy shaft position (6) axis; Y1 is the coordinate value of the vertical direction of the midpoint of the design pseudo-axis position (6) axis; X2 is the coordinate value of the casting flow direction at the midpoint of the measured dummy axis position (7); Y2 is the vertical coordinate value of the midpoint of the measured pseudo-axis position (7) axis; ⑥ Determine the tangential and radial adjustment directions, and the specific determination method is as follows: if Adjust the U-shaped seat in the opposite direction of the tangent; if Adjust the U-shaped seat towards the tangential direction; if The U-shaped seat is not adjusted in the tangential direction; if Add a shim at the position of the radial adjustment shim (3); if Reduce the shim at the position of radial adjustment shim (3); if No adjustment is made in the radial direction; ⑦ Based on the adjustment amount and adjustment direction calculated in steps ⑤ and ⑥, add or subtract shims at the positions of radial adjustment shims (3) and tangential adjustment shims (4).

2. The method for adjusting the U-shaped seat of the curved section of the continuous casting machine support frame according to claim 1, characterized in that, Also includes: ⑧ After the adjustment is completed, readjust the U-shaped seat according to the above steps. If it is not adjusted properly, repeat the above steps to measure and adjust it again.

Images