Optimization Method for Processing Small Step Swing Shearing Parts

Abstract

An optimization method for processing small-step swing cutting parts provided by the present invention includes the following steps: S1. Determine the maximum feeding speed, the maximum swing cutting speed, and the maximum stacking speed, and control the swing cutting mechanism to work at the maximum feeding speed, the maximum swing cutting speed, and the maximum stacking speed; S2. Determine the center of gravity of the steel plate to be processed, determine the center line in the length direction of the middle conveyor belt among the three parallel conveyor belts of the swing cutting mechanism, and place the steel plate to be processed on the three conveyor belts, and the vertical projection of the center line in the length direction of the middle conveyor belt on the steel plate to be processed passes through the center of gravity of the steel plate to be processed; S3. On the basis of step S2, adjust the horizontal positions of the two conveyor belts other than the middle conveyor belt among the three parallel conveyor belts of the swing cutting mechanism so that the frictional forces between the three conveyor belts and the steel plate to be processed are equal; S4. Set the set value of the steel plate to be processed in the controller of the swing cutting mechanism to 300 mm, and control the swing cutting mechanism to work.

Description

Technical Field

[0001] The present invention relates to a method for processing steel plates, and particularly to an optimization method for processing small-step swing shear parts. Background Art

[0002] In the steel field, the produced steel plates need to be cut by a swing shear mechanism to form regular steel plates. In the prior art, since the shapes and sizes of the processed steel plate products are different, the swing shear mechanism cannot match different processed steel plates during processing, resulting in the processed steel plates not being able to obtain the steel plates of the final target specifications.

[0003] Therefore, in order to solve the above technical problems, it is urgent to propose a new technical means. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an optimization method for processing small-step swing shear parts, which can adapt to the swing shear mechanism processing of steel plates to be cut and processed with different shapes and different size specifications, thereby effectively improving production efficiency and ensuring the qualification rate of the final product.

[0005] An optimization method for processing small-step swing shear parts provided by the present invention includes the following steps:

[0006] S1. Determine the maximum feeding speed, the maximum swing shear speed, and the maximum stacking speed, and control the swing shear mechanism to work according to the maximum feeding speed, the maximum swing shear speed, and the maximum stacking speed;

[0007] S2. Determine the center of gravity of the steel plate to be processed, determine the center line in the length direction of the middle conveyor belt among the three parallel conveyor belts of the swing shear mechanism, and place the steel plate to be processed on the three conveyor belts, and the vertical projection of the center line in the length direction of the middle conveyor belt on the steel plate to be processed passes through the center of gravity of the steel plate to be processed;

[0008] S3. On the basis of step S2, adjust the horizontal positions of the two conveyor belts except the middle conveyor belt among the three parallel conveyor belts of the swing shear mechanism so that the frictional forces between the three conveyor belts and the steel plate to be processed are equal;

[0009] S4. Set the set value of the steel plate to be processed in the controller of the swing shear mechanism to 300 mm, and control the swing shear mechanism to work.

[0010] Further, in step S1, the maximum feeding speed is determined according to the following method:

[0011] y1 = a1x1 + b1, where y1 is the maximum feeding speed, x1 represents the feeding length during processing, and a1 and b1 are the calculation coefficients of the maximum feeding speed.

[0012] Further, in step S1, the maximum swing shear speed is determined according to the following method:

[0013] y2 = a2x2 + b2; where y2 is the maximum swing shear speed, x2 represents the swing angle of the swing shear, and a2 and b2 are the calculation coefficients of the maximum swing shear speed. When x2 ≤ 30°, a2 and b2 are respectively taken as a 21 and b 21 , when 30° < x2 ≤ 60°, a2 and b2 are respectively taken as a 22 and b 22 ; when x2 > 60°, a2 and b2 are respectively taken as a 23 and b 23 .

[0014] Further, in step S1, the maximum stacking speed is determined according to the following method:

[0015] y3 = a3x3 + b3; where: y3 is the maximum stacking speed, x3 represents the demagnetization position of the magnetic stacking mechanism, and a2 and b2 are the calculation coefficients of the maximum stacking speed.

[0016] Further, in step S2, the centroid of the steel plate to be processed is determined according to the following method:

[0017] Set at least 3 test points at different positions on the edge of the steel plate to be processed;

[0018] Hang the steel plate to be processed with a thin string at the test point, and then draw a straight line on the steel plate that passes through the test point and is parallel to the extension direction of the thin string;

[0019] Take the intersection point of the straight lines passing through 3 different test points as the centroid of the steel plate.

[0020] Advantages of the present invention: Through the present invention, it is possible to adapt to steel plates of different shapes and different size specifications to be processed by a swing shear mechanism, thereby effectively improving production efficiency and ensuring the qualification rate of the final product. Description of the Drawings

[0021] The present invention will be further described below in conjunction with the drawings and embodiments:

[0022] Figure 1 is a flowchart of the present invention. Detailed Embodiments

[0023] The following further details the present invention:

[0024] A small-step swing shear part processing optimization method provided by the present invention includes the following steps:

[0025] S1. Determine the maximum feeding speed, the maximum swing shearing speed, and the maximum stacking speed, and control the swing shearing mechanism to operate at the maximum feeding speed, the maximum swing shearing speed, and the maximum stacking speed;

[0026] S2. Determine the center of gravity of the steel plate to be processed, determine the center line in the length direction of the middle conveyor belt among the three parallel conveyor belts of the swing shearing mechanism, and place the steel plate to be processed on the three conveyor belts, and the vertical projection of the center line in the length direction of the middle conveyor belt on the steel plate passes through the center of gravity of the steel plate;

[0027] S3. On the basis of step S2, adjust the horizontal positions of the two conveyor belts other than the middle conveyor belt among the three parallel conveyor belts of the swing shearing mechanism so that the frictional forces between the three conveyor belts and the steel plate to be processed are equal;

[0028] S4. Set the set value of the steel plate to be processed in the controller of the swing shearing mechanism to 300 mm, and control the swing shearing mechanism to operate; By the above method, it can adapt to steel plates to be cut and processed with different shapes and different size specifications for swing shearing mechanism processing, thereby effectively improving production efficiency and ensuring the qualification rate of the final product.

[0029] In this embodiment, in step S1, the maximum feeding speed is determined according to the following method:

[0030] y1 = a1x1 + b1, where y1 is the maximum feeding speed, x1 represents the feeding length during processing, and a1 and b1 are the calculation coefficients of the maximum feeding speed, and the calculation coefficients are obtained through existing empirical formulas or simulation by MATLAB software.

[0031] In step S1, the maximum swing shearing speed is determined according to the following method:

[0032] y2 = a2x2 + b2; where y2 is the maximum swing shearing speed, x2 represents the swing angle of the swing shearing, and a2 and b2 are the calculation coefficients of the maximum swing shearing speed. Among them, when x2 ≤ 30°, a2 and b2 take values of a 21 and b 21 , when 30° < x2 ≤ 60°, a2 and b2 take values of a 22 and b 22 ; when x2 > 60°, a2 and b2 take values of a 23 and b 23 , that is to say: at different swing angles of the swing shearing, its calculation coefficients are different. Among them, each calculation coefficient is determined through MATLAB simulation software or existing empirical formulas.

[0033] In step S1, the maximum stacking speed is determined according to the following method:

[0034] y3 = a3x3 + b3; where: y3 is the maximum stacking speed, x3 represents the demagnetization position of the magnetic stacking mechanism, and a2 and b2 are the calculation coefficients of the maximum stacking speed, which are determined by MATLAB simulation software or existing empirical formulas; in the above, each maximum speed will generate several values in the calculation formula. Since each calculation equation is a linear equation, when determining the maximum value, a set number of points are taken on the curve of each equation, and then the average value is used as the final result.

[0035] In this embodiment, in step S2, the centroid of the steel plate to be processed is determined according to the following method:

[0036] Set at least 3 test points at different positions on the edge of the steel plate to be processed;

[0037] Hang the steel plate to be processed with a thin string at the test point, and then draw a straight line on the steel plate that passes through the test point and is parallel to the extension direction of the thin string;

[0038] Take the intersection point of the straight lines passing through 3 different test points as the centroid of the steel plate.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An optimization method for processing small-step swing cutting parts, characterized in that: It includes the following steps: S1. Determine the maximum feeding speed, the maximum swing shearing speed, and the maximum stacking speed, and control the swing shearing mechanism to work according to the maximum feeding speed, the maximum swing shearing speed, and the maximum stacking speed; S2. Determine the center of gravity of the steel plate to be processed, determine the center line in the length direction of the middle conveyor belt among the three parallel conveyor belts of the swing shearing mechanism, and place the steel plate to be processed on the three conveyor belts, and the vertical projection of the center line in the length direction of the middle conveyor belt on the steel plate to be processed passes through the center of gravity of the steel plate to be processed; S3. On the basis of step S2, adjust the horizontal positions of the two conveyor belts other than the middle conveyor belt among the three parallel conveyor belts of the swing shearing mechanism so that the frictional forces between the three conveyor belts and the steel plate to be processed are equal; S4. Set the set value of the steel plate to be processed in the controller of the swing shearing mechanism to 300 mm, and control the swing shearing mechanism to work.

2. The optimized method for processing small-step swing cutting parts according to claim 1, characterized in that: In step S1, the maximum feeding speed is determined according to the following method: y1 = a1x1 + b1, where y1 is the maximum feeding speed, x1 represents the feeding length during processing, and a1 and b1 are the calculation coefficients of the maximum feeding speed.

3. The optimized method for processing small-step swing shearing parts according to claim 1, characterized in that: In step S1, the maximum swing shearing speed is determined according to the following method: y2 = a2x2 + b2; where, y2 is the maximum swing shear speed, x2 represents the swing angle of the swing shear, a2 and b2 are the calculation coefficients of the maximum swing shear speed. Among them, when x2 ≤ 30°, a2 and b2 are respectively taken as a 21 and b 21 , when 30° < x2 ≤ 60°, a2 and b2 are respectively taken as a 22 and b 22 ; when x2 > 60°, a2 and b2 are respectively taken as a 23 and b 23 .

4. The optimized method for processing small-step swing cutting parts according to claim 1, wherein: In step S1, the maximum stacking speed is determined according to the following method: y3 = a3x3 + b3; where: y3 is the maximum stacking speed, x3 represents the demagnetization position of the magnetic stacking mechanism, and a2 and b2 are the calculation coefficients of the maximum stacking speed.

5. The optimized processing method for small-step swing cutting parts according to claim 1, characterized in that: In step S2, the center of gravity of the steel plate to be processed is determined according to the following method: Set at least 3 test points at different positions on the edge of the steel plate to be processed; Hang the steel plate to be processed with a thin string at the test points, and then draw a straight line on the steel plate to be processed that passes through the test points and is parallel to the extension direction of the thin string; Take the intersection point of the straight lines passing through the 3 different test points as the center of gravity of the steel plate.

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