CN112658063B - Installation accuracy control method for roller box supporting roller of straightening machine - Google Patents
Installation accuracy control method for roller box supporting roller of straightening machine Download PDFInfo
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- CN112658063B CN112658063B CN202011303933.XA CN202011303933A CN112658063B CN 112658063 B CN112658063 B CN 112658063B CN 202011303933 A CN202011303933 A CN 202011303933A CN 112658063 B CN112658063 B CN 112658063B
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Abstract
The invention relates to a method for controlling the installation accuracy of a supporting roller of a roller box of a straightening machine, which belongs to the technical field of roller maintenance and comprises the following steps: determining a coordinate zero point; measuring to obtain coordinates (x 1, y1, z 1) and coordinates (x 2, y2, z 2), wherein x1 and x2 are coordinate values of the central points of the two ends of the root supporting roller in the axial direction of the root supporting roller respectively, y1 and y2 are coordinate values of the central points of the two ends of the root supporting roller in the radial direction of the root supporting roller respectively, and z1 and z2 are coordinate values of the central points of the two ends of the root supporting roller in the height direction respectively; respectively subtracting z1 and z2 from the zero point of the coordinate to obtain a first difference value and a second difference value; comparing the first difference value and the second difference value with a preset height deviation value; and when the first difference is larger than the first value, adjusting the installation height of the transmission side of the support roller, and when the second difference is larger than the first value, adjusting the installation height of the operation side of the support roller. By the method, higher mounting precision of the supporting roller can be ensured.
Description
Technical Field
The invention belongs to the technical field of roller maintenance, and particularly relates to a method for controlling the installation accuracy of a supporting roller of a roller box of a straightening machine.
Background
The hot straightening machine for the medium plate production line is important equipment for the production line, is arranged behind a rolling mill, and is used for straightening a steel plate to ensure that the plate shape meets the requirement of straightness, and the straightening temperature is generally 450-900 ℃. With the development of high-strength steel and other varieties of steel, the straightening force needs to be increased, and higher requirements are provided for the use of a straightening machine. The roller box is an important part of the hot straightening machine and comprises an upper roller box and a lower roller box, wherein the upper roller box is organized by two parts. The upper and lower roller boxes are composed of a base, 60 supporting roller assemblies (30 upper and lower roller boxes respectively) and 11 working roller assemblies. The working roll and the supporting roll need to be disassembled and assembled for maintenance, and when the disassembling and assembling times are more or the service life is long, the mounting precision of the supporting roll is not easy to guarantee.
Disclosure of Invention
The invention provides a method for controlling the installation accuracy of a supporting roller in a roller box of a straightening machine, which is used for solving the technical problem that the installation accuracy of the supporting roller in the roller box of the straightening machine is not easy to guarantee.
The invention is realized by the following technical scheme: a method for controlling the installation accuracy of a supporting roller of a roller box of a straightening machine comprises the following steps:
determining a coordinate zero point;
measuring to obtain coordinates (x 1, y1, z 1) of a central point of a transmission side of the support roll and coordinates (x 2, y2, z 2) of a central point of an operation side of the support roll, wherein x1 is a coordinate value of the central point of the transmission side of the support roll in the axial direction of the support roll, y1 is a coordinate value of the central point of the transmission side of the support roll in the radial direction of the support roll, z1 is a coordinate value of the central point of the transmission side of the support roll in the height direction of the support roll, x2 is a coordinate value of the central point of the operation side of the support roll in the axial direction of the support roll, y2 is a coordinate value of the central point of the operation side of the support roll in the radial direction of the support roll, and z2 is a coordinate value of the central point of the operation side of the support roll in the height direction of the support roll;
subtracting z1 from the zero point of the coordinate to obtain a first difference value, and subtracting z2 from the zero point of the coordinate to obtain a second difference value;
comparing the first difference value and the second difference value with a first value, wherein the first value is a preset height deviation value;
and when the first difference is larger than the first value, adjusting the mounting height of the transmission side of the supporting roller to enable the first difference to be smaller than or equal to the first value, and when the second difference is larger than the first value, adjusting the mounting height of the operation side of the supporting roller to enable the second difference to be smaller than or equal to the first value.
Further, in order to better implement the present invention, the method further includes:
obtaining a third difference value by subtracting y1 and y 2;
comparing the third difference value with a second value, wherein the second value is a preset horizontal deviation value;
and when the third difference is larger than the second value, adjusting the mounting position of the transmission side or the operation side of the support roller in the radial direction of the support roller so that the third difference is smaller than or equal to the second value.
Further, in order to better implement the present invention, the first value ranges from 0.04mm to 0.06mm.
Further, in order to better implement the present invention, the first value is 0.05mm.
Further, in order to better implement the present invention, the second value ranges from 0.04mm to 0.06mm.
Further, in order to better implement the present invention, the second value is 0.05mm.
Further, in order to better implement the present invention, the method of measuring the coordinates of the center point of the support roller and the center point of the operation side is to measure using a laser tracker.
Further, in order to better realize the invention, the roller box comprises an upper roller box, the upper roller box comprises a first box and a second box which are connected, and N supporting rollers are respectively arranged in the first box and the second box;
a backing roll that is located transmission side edge angle department in the first box is first roller, and the coordinate zero point setting when measuring backing roll transmission side central point coordinate and operation side central point coordinate in the first box is in first roller transmission side central point department.
Further, in order to better realize the invention, the roller box comprises an upper roller box, the upper roller box comprises a first box and a second box which are connected, and N supporting rollers are respectively arranged in the first box and the second box;
and a supporting roller positioned at the corner of the transmission side edge in the second box is a second roller, and a coordinate zero point when the coordinate of the central point of the transmission side of the supporting roller in the second box and the coordinate of the central point of the operation side are measured is arranged at the central point of the transmission side of the second roller.
Further, in order to better realize the invention, the roller box comprises a lower roller box, wherein N short rollers and N long rollers are arranged in the lower roller box;
and a supporting roller which is positioned at the transmission side and is close to the outlet side in the lower roller box is a third roller, and a coordinate zero point when the coordinate of the central point of the transmission side of the supporting roller in the lower roller box and the coordinate of the central point of the operation side are measured is arranged at the central point of the transmission side of the third roller.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for controlling the installation accuracy of a supporting roller of a roller box of a straightening machine, which comprises the following steps: determining a coordinate zero point; measuring to obtain coordinates (x 1, y1, z 1) of a central point of a transmission side of the supporting roll and coordinates (x 2, y2, z 2) of a central point of an operation side of the root supporting roll, wherein x1 is a coordinate value of the central point of the transmission side of the root supporting roll in the axial direction of the root supporting roll, y1 is a coordinate value of the central point of the transmission side of the root supporting roll in the radial direction of the root supporting roll, z1 is a coordinate value of the central point of the transmission side of the root supporting roll in the height direction of the root supporting roll, x2 is a coordinate value of the central point of the operation side of the root supporting roll in the axial direction of the root supporting roll, y2 is a coordinate value of the central point of the operation side of the root supporting roll in the radial direction of the root supporting roll, and z2 is a coordinate value of the central point of the operation side of the root supporting roll in the height direction of the root supporting roll; obtaining a first difference value by subtracting z1 from the zero point of the coordinate, and obtaining a second difference value by subtracting z2 from the zero point of the coordinate; comparing the first difference value and the second difference value with a first value, wherein the first value is a preset height deviation value; and when the first difference is larger than the first value, adjusting the mounting height of the transmission side of the support roller to enable the first difference to be smaller than or equal to the first value, and when the second difference is larger than the first value, adjusting the mounting height of the operation side of the support roller to enable the second difference to be smaller than or equal to the first value. By the method, the height deviation value of the two ends of the transmission side and the operation side of the support roller relative to the zero point, namely a first difference value and a second difference value, can be determined, according to the comparison between the first difference value and the first value and the second difference value, the deviation of the two ends of the support roller relative to the zero point in the height direction can be known, when the first difference value is larger than the first value, the fact that one end of the transmission side of the support roller is tilted or sunk to be too high relative to the zero point is indicated, at the moment, the installation height of the transmission side of the support roller is adjusted, when the second difference value is larger than the first value, the fact that one end of the operation side of the support roller is tilted or sunk to be too high relative to the zero point is indicated, at the moment, the installation height of the operation side of the support roller is adjusted, so that the difference between the two ends of the support roller and the zero point is within a range specified by the first value, so that the height difference between the two ends of the support roller is reduced, the inclination degree of the support roller in the height direction in the height range in the height direction is also reduced, so that all the support rollers can be installed in a higher plane, and the installation accuracy of the support roller is also provided, when all the support roller is higher than the installation accuracy in the installation plane.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of an upper roll cassette in the present application;
fig. 2 is a schematic view of the structure of the lower roll cassette in the present application.
In the figure:
1, mounting a roller box; 11-a first cartridge; 12-a second cartridge;
2-a lower roller box;
3-a first roller;
4-second roll
5-third roll.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the method for controlling the installation accuracy of the supporting roller in the roller box of the straightening machine is used for solving the technical problem that the installation accuracy of the supporting roller in the roller box of the straightening machine is not easy to guarantee.
The method for controlling the installation accuracy of the supporting roller of the roller box of the straightening machine comprises the following steps:
and determining a coordinate zero point.
It should be noted that the roller box of the straightener actually comprises an upper roller box 1 and a lower roller box 2, wherein the upper roller box 1 comprises a first box 11 and a second box 12 which are connected, a plurality of supporting rollers are installed in the first box 11 and the second box 12, a gap between two adjacent supporting rollers is overlapped with a working roller, N short rollers and N long rollers are installed in the lower roller box 2, and the short rollers and the long rollers are supporting rollers.
The zero point of the coordinate determined when the mounting accuracy of the supporting rollers in the first box 11 is controlled is set at the central point of the transmission side of the first roller 3, and the first roller 3 is one supporting roller positioned at the corner of the transmission side in the first box 11.
The zero point of the coordinate determined when the mounting accuracy of the supporting rollers in the second box 12 is controlled is set at the center point of the transmission side of the second roller 4, and the second roller 4 is a supporting roller positioned at the corner of the transmission side in the second box 12.
The coordinate zero point determined when the mounting accuracy of the supporting rollers in the lower roller box 2 is controlled is arranged at the central point of the transmission side of the third roller 5, and the third roller 5 is the supporting roller which is positioned at the transmission side and is close to the outlet in the lower roller box 2.
The measurement results in the coordinates (x 1, y1, z 1) of the central point of the transmission side of the support roller and the coordinates (x 2, y2, z 2) of the central point of the operation side of the support roller. Wherein, x1 is the coordinate value of the central point of the transmission side of the root support roll in the axial direction of the root support roll, y1 is the coordinate value of the central point of the transmission side of the root support roll in the radial direction of the root support roll, z1 is the coordinate value of the central point of the transmission side of the root support roll in the height direction, x2 is the coordinate value of the central point of the operation side of the root support roll in the axial direction of the root support roll, y2 is the coordinate value of the central point of the operation side of the root support roll in the radial direction of the root, and z2 is the coordinate value of the central point of the operation side of the root support roll in the height direction.
As a preferred embodiment of this embodiment, in this embodiment, the coordinates of the center point on the transmission side and the coordinates of the center point on the operation side of the support roller are obtained by using a laser tracker, and the measurement accuracy is high.
And subtracting z1 from the zero point of the coordinate to obtain a first difference value, and subtracting z2 from the zero point of the coordinate to obtain a second difference value. In this way, the relative height between the two ends of the supporting roller and the coordinate zero point can be known.
Comparing both the first difference and the second difference to a first value. In this step, the first value is a preset standard value of the height deviation value, and as an implementation manner of this embodiment, the value of the first value ranges from 0.04mm to 0.06mm. Most preferably, the first value is 0.05mm.
When the first difference is larger than the first value, the tilting or sinking height of the transmission side of the support roller is more than the standard, at this time, the mounting height of the transmission side of the support roller needs to be adjusted so that the first difference is smaller than or equal to the first value, such as increasing or decreasing the shims, when the second difference is larger than the first value, the tilting or sinking height of the operation side of the support roller is more than the standard, and at this time, the mounting height of the operation side of the support roller is adjusted so that the second difference is smaller than or equal to the first value, such as increasing or decreasing the shims.
By the method, the height difference of two ends of the support roller can be reduced when the support roller is installed, the situation that one end of a transmission side or one end of an operation side tilts or sinks to an overlarge degree when the support roller is installed is avoided, namely the support roller is prevented from inclining in the height direction, the levelness of the support roller after being installed is better, and when the heights of two ends of the support roller relative to a zero point are within ranges, the levelness of the support roller is also within a specified range.
As a more preferable embodiment of this embodiment, the method for controlling the installation accuracy of the supporting roller of the roller box of the leveler provided in this embodiment further includes:
and (3) subtracting y1 and y2 to obtain a third difference value. When the third difference is equal to 0, it indicates that the coordinates of the two ends of the root support shaft in the radial direction are the same, that is, the root support shaft is not inclined in the radial direction; when the third difference is greater than or less than 0, it indicates that the support shaft is inclined in the radial direction thereof.
And comparing the absolute value of the third difference with a second value, wherein the second value is a standard value of a preset horizontal deviation value. I.e. the absolute value of the obtained third difference is compared with the standard value. As an implementation manner of this embodiment, the range of the second value in this embodiment is 0.04mm to 0.06mm, and as a best implementation manner of this embodiment, the second value in this embodiment is 0.05mm.
When the absolute value of the third difference is greater than the second value, it indicates that the angle at which the root support roller is inclined in the radial direction is too large, and at this time, it is necessary to adjust the mounting position of the transmission side or the operation side of the root support roller in the radial direction so that the absolute value of the third difference is smaller than or equal to the second value, that is, the angle at which the root support roller is inclined in the radial direction is not too large, so that the absolute value of the third difference falls within a predetermined range, and when the angles at which all the support rollers are inclined in the radial direction fall within the predetermined range, it indicates that the parallelism of all the support rollers is good, so that the mounting accuracy of the support rollers can be better ensured.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A method for controlling the installation accuracy of a supporting roller of a roller box of a straightening machine is characterized by comprising the following steps:
determining a coordinate zero point;
measuring to obtain coordinates (x 1, y1, z 1) of a central point of a transmission side of the support roll and coordinates (x 2, y2, z 2) of a central point of an operation side of the support roll, wherein x1 is a coordinate value of the central point of the transmission side of the support roll in the axial direction of the support roll, y1 is a coordinate value of the central point of the transmission side of the support roll in the radial direction of the support roll, z1 is a coordinate value of the central point of the transmission side of the support roll in the height direction of the support roll, x2 is a coordinate value of the central point of the operation side of the support roll in the axial direction of the support roll, y2 is a coordinate value of the central point of the operation side of the support roll in the radial direction of the support roll, and z2 is a coordinate value of the central point of the operation side of the support roll in the height direction of the support roll;
obtaining a first difference value by subtracting z1 from the zero point of the coordinate, and obtaining a second difference value by subtracting z2 from the zero point of the coordinate;
comparing the first difference value and the second difference value with a first value, wherein the first value is a preset height deviation value;
when the first difference is larger than the first value, adjusting the installation height of the transmission side of the supporting roller to enable the first difference to be smaller than or equal to the first value, and when the second difference is larger than the first value, adjusting the installation height of the operation side of the supporting roller to enable the second difference to be smaller than or equal to the first value;
obtaining a third difference value by subtracting y1 and y 2;
comparing the third difference value with a second value, wherein the second value is a preset horizontal deviation value;
when the third difference is larger than the second value, adjusting the mounting position of the transmission side or the operation side of the support roller in the radial direction of the support roller so that the third difference is smaller than or equal to the second value;
the roller box of the straightening machine comprises an upper roller box and a lower roller box, wherein the upper roller box comprises a first box and a second box which are connected, and N supporting rollers are arranged in the first box and the second box;
the roller box comprises a lower roller box, and N short rollers and N long rollers are arranged in the lower roller box;
the determining the coordinate zero point comprises:
a supporting roller positioned at the corner of the transmission side edge in the first box is a first roller, and a coordinate zero point when the coordinate of the central point of the transmission side of the supporting roller in the first box and the coordinate of the central point of the operation side are measured is arranged at the central point of the transmission side of the first roller;
a supporting roller positioned at the corner of the transmission side edge in the second box is a second roller, and a coordinate zero point when the coordinate of the central point of the transmission side of the supporting roller in the second box and the coordinate of the central point of the operation side are measured is arranged at the central point of the transmission side of the second roller;
and a supporting roller which is positioned at the transmission side and is close to the outlet side in the lower roller box is a third roller, and a coordinate zero point when the coordinate of the central point of the transmission side of the supporting roller in the lower roller box and the coordinate of the central point of the operation side are measured is arranged at the central point of the transmission side of the third roller.
2. The method for controlling the installation accuracy of the supporting roller of the roller box of the straightening machine according to claim 1, characterized by comprising the following steps of: the first value ranges from 0.04mm to 0.06mm.
3. The installation accuracy control method of the roller box supporting roller of the straightening machine as claimed in claim 2, characterized in that: the first value takes the value of 0.05mm.
4. The method for controlling the installation accuracy of the supporting roller of the roller box of the straightening machine according to claim 1, characterized by comprising the following steps of: the value range of the second value is 0.04mm to 0.06mm.
5. The installation accuracy control method for the roller box supporting roller of the straightening machine as claimed in claim 4, characterized in that: the value of the second value is 0.05mm.
6. The installation accuracy control method of the supporting roller of the roller box of the straightening machine as claimed in any one of claims 1 to 5, wherein the installation accuracy control method comprises the following steps: the method for obtaining the coordinates of the central point of the transmission side and the coordinates of the central point of the operation side of the support roller by measurement is to use a laser tracker for measurement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011303933.XA CN112658063B (en) | 2020-11-19 | 2020-11-19 | Installation accuracy control method for roller box supporting roller of straightening machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011303933.XA CN112658063B (en) | 2020-11-19 | 2020-11-19 | Installation accuracy control method for roller box supporting roller of straightening machine |
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| CN112658063B true CN112658063B (en) | 2023-02-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101247901A (en) * | 2005-08-26 | 2008-08-20 | Sms迪马格股份公司 | Method for thickness regulation during a hot-rolling process |
| CN100518975C (en) * | 2007-08-07 | 2009-07-29 | 攀枝花新钢钒股份有限公司 | On-line roll changing roll gap calibration method for strip steel of rolling mill |
| DE102009039501A1 (en) * | 2009-08-31 | 2011-03-03 | Sms Siemag Ag | Method for adjusting the rolls of a roll stand and roll stand |
| CN103252385B (en) * | 2012-02-21 | 2014-11-05 | 山西太钢不锈钢股份有限公司 | Reeler pinch roll precision adjusting method |
| CN103372576B (en) * | 2012-04-13 | 2015-06-24 | 上海梅山钢铁股份有限公司 | Temper mill push-up cylinder roll gap control device and roll gap synchronous control method |
| CN103586310B (en) * | 2012-08-13 | 2015-09-23 | 宝山钢铁股份有限公司 | Straightener calibration method |
| KR101435754B1 (en) * | 2013-06-21 | 2014-08-28 | (주) 일광메탈포밍 | Residual stress relieving apparatus |
| CN203791406U (en) * | 2014-04-25 | 2014-08-27 | 武汉钢铁(集团)公司 | Cold-rolling strip steel tension straightening machine roller box |
| CN110449471B (en) * | 2019-07-17 | 2021-05-28 | 首钢京唐钢铁联合有限责任公司 | Method for detecting parallel relation of rollers |
| CN111633397A (en) * | 2020-06-10 | 2020-09-08 | 五冶集团上海有限公司 | Furnace roller correction method for vertical annealing furnace |
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