CN114130831B - Device and method for calibrating position of step pad on rolling mill - Google Patents
Device and method for calibrating position of step pad on rolling mill Download PDFInfo
- Publication number
- CN114130831B CN114130831B CN202111441779.7A CN202111441779A CN114130831B CN 114130831 B CN114130831 B CN 114130831B CN 202111441779 A CN202111441779 A CN 202111441779A CN 114130831 B CN114130831 B CN 114130831B
- Authority
- CN
- China
- Prior art keywords
- working position
- calibrating
- calibration
- step pad
- hydraulic cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The invention discloses a device and a method for calibrating the position of a step pad on a rolling mill, which are used for calibrating the working position of the step pad on the rolling mill. The calibrating device is provided with a first calibrating area and a second calibrating area which are symmetrical to each other, the first calibrating area is provided with an L-shaped handle, a calibrating block is arranged at the first end of the L-shaped handle, a handheld ring is arranged at the second end of the L-shaped handle, the L-shaped handle is provided with an anti-falling connecting rod, and the anti-falling connecting rod of the first calibrating area and the anti-falling connecting rod of the second calibrating area are fixed through a locating pin; the upper step backing plate adjusting part is provided with an L-shaped fixed frame, a driving hydraulic cylinder and a moving frame which are arranged on the rolling mill, and a calibration device is arranged between the driving hydraulic cylinder and the moving frame; the position of the step pad is calibrated, the problems that the calibration and verification of the position of the step pad on the hot rolling finishing mill group are difficult, the time is long, the calibration accuracy can reach within 1mm, the roller changing time is prolonged due to inaccurate calibration of the position of the step pad, and the production is influenced are effectively solved.
Description
Technical Field
The invention belongs to the technical field of step pad position positioning, and particularly relates to a device and a method for calibrating a step pad position on a rolling mill.
Background
The rolling system of the finishing mill unit of the hot rolling line F1-F7 mainly comprises an upper step backing plate, an HGC hydraulic cylinder 15, an upper supporting roller, a lower supporting roller, an upper working roller, a lower working roller and the like, wherein the supporting roller and the working roller are used by periodically grinding the working roller on a lower machine and then on the upper machine, and in order to compensate the change of gradually reduced roller diameter caused by repeated grinding, each rolling mill is provided with an upper step backing plate thickness adjusting device.
The upper step pad thickness adjusting device is composed of a driving hydraulic cylinder 6 with a displacement sensor, an L-shaped fixed frame 3, a movable frame 7, a first step pad 8, a second step pad 9, a third step pad 10 and the like, as shown in figure 1. The ladder backing plate has first level ladder backing plate 8, second level ladder backing plate 9, third level ladder backing plate 10 to constitute, in order to cooperate in addition to accomplish the change of work roll, backing roll, HGC pneumatic cylinder 15, goes up the ladder and fills up the device and totally has 5 stations, is first workstation 13, second workstation 12, third workstation 16, fourth workstation 17 and fifth workstation 11 respectively, wherein: the first working position 13 is a supporting roller replacement position, the second working position 12 is a working roller and HGC hydraulic cylinder 15 replacement position, the third working position 16, the fourth working position 17 and the fifth working position 11 are three steel rolling positions (step backing plates with proper thickness are selected according to the diameter of a roller system), 5 stations are driven by a driving hydraulic cylinder 6 to horizontally move a moving frame 7 to a central line of the working position, and the central line of the working position is positioned at the position of the second working position 12; after debugging and calibration, each position is transmitted to a displacement sensor of the driving hydraulic cylinder 6 by a control system to finish position positioning.
Because the dimensions of the width (179 mm) of the step pad, the center distance (180 mm) of the adjacent step pad, the distance (183 mm) between the first step pad 8 and the lug plate 14 on the moving frame, the width (170 mm) of the hanging lugs of the HGC hydraulic cylinder 15 and the like are basically approximate, and the relative height difference exists in the vertical direction, before each station is positioned, the HGC hydraulic cylinder 15 needs to move up and down, the moving frame 7 needs to move horizontally, if each station is positioned inaccurately in the horizontal direction, the hanging lugs on the HGC hydraulic cylinder 15 interfere with the lug plate 14 of the moving frame, the first step pad 8, the second step pad 9 and the third step pad 10, thereby leading to difficult roll replacement, prolonged roll replacement and influencing production.
Therefore, in order to ensure the positional accuracy of the 5 stations, it is necessary to periodically perform position calibration of the step pad device, particularly after maintenance and replacement of the drive cylinder 6, the displacement sensor, the step pad, and the like. However, the space of the position of the step pad device in the rolling mill is narrow, and the position size of the step pad device cannot be effectively observed and accurately measured, so that the conventional calibration and verification is time-consuming, labor-consuming and inaccurate.
Disclosure of Invention
The invention aims to provide a device and a method for calibrating the position of a step pad on a rolling mill.
The technical scheme adopted for solving the technical problems is as follows: the device comprises an upper step pad position calibration device and a calibration part, wherein the calibration part is provided with a first calibration area and a second calibration area which are symmetrical to each other, the first calibration area is provided with an L-shaped handle, a first end of the L-shaped handle is provided with a calibration block, a second end of the L-shaped handle is provided with a handheld ring, the L-shaped handle is provided with an anti-falling connecting rod, and the anti-falling connecting rod of the first calibration area and the anti-falling connecting rod of the second calibration area are fixed through a positioning pin; the upper step backing plate adjusting part is provided with an L-shaped fixed frame arranged on a mill housing, the driving hydraulic cylinder and the moving frame are arranged on the L-shaped fixed frame, and a calibration part is arranged between the inner side of the fixed frame and the moving frame.
Specifically, the upper step pad adjusting part is provided with a first step pad, a second step pad, a third step pad, a first working position, a second working position and a third working position.
Specifically, the rolling mill is provided with an upper supporting roller and an HGC hydraulic cylinder.
Specifically, the rolling mill is further provided with a fourth working position and a fifth working position.
A method for calibrating the position of a step pad on a rolling mill comprises the following steps:
1) The upper step pad adjusting part is adjusted to enable the fifth working position to be in a working state, a medium power source is stopped, a working ticket is transacted, the inner side of an L-shaped fixed frame on the transmission side of the step pad, the end part of a movable frame and the contact surface for placing a calibration block are cleaned up, and oiling and protecting are carried out;
2) On a ladder platform at the transmission side of the rolling mill, a calibration block is placed on the inner side of an L-shaped fixed frame and abuts against the end part, and a positioning pin is inserted in the middle position of an anti-falling connecting rod;
3) The adjusting part of the upper step backing plate is adjusted to enable the second working position to be in a working position, the upper supporting roller drives the HGC hydraulic cylinder to rise to a high position, the driving hydraulic cylinder slowly drives the movable frame to enable the first working position to be in a working position, the outer side of the end part of the movable frame just abuts against the calibration block, and no gap exists between the outer side of the end part of the movable frame, the calibration block and the inner side of the end part of the L-shaped fixed frame;
4) Calibrating the displacement of a displacement sensor of a driving hydraulic cylinder, and calibrating the displacement as the displacement of a working position of a first working position in a control system;
5) And operating the step pad to enable the second working position to be in a working position, stopping the power source and hanging the tag, disassembling the locating pin in the middle position of the anti-falling connecting rod of the calibration block, and removing the calibration block.
The invention has the following beneficial effects: according to the device and the method for calibrating the position of the step pad on the rolling mill, the position of the step pad is calibrated directly, the problems that the calibration and verification of the position of the step pad on a hot rolling finishing mill group are difficult, the time is long, the calibration accuracy can be within 1mm, the roller changing time is prolonged due to inaccurate calibration of the position of the step pad, and the production is influenced are effectively solved; the existing calibration can also be effectively verified.
Drawings
Fig. 1 is a schematic structural view of an upper step pad adjusting part.
Fig. 2 is a schematic structural view of the calibration part.
FIG. 3 is a side view of the calibration block.
Fig. 4 is a schematic structural view of the calibration part mounted on the upper step adjustment part.
In the figure: 1- "L" -shaped handle; 2-calibrating the block; 3- "L" shape fixed frame; 4-an anti-falling connecting rod; 5-locating pins; 6-driving a hydraulic cylinder; 7-moving the frame; 8-a first stage step pad; 9-a second step pad; 10-a third-stage ladder pad plate; 11-a fifth working position; 12-a second working position; 13-a first working position; 14-ear plates; 15-HGC hydraulic cylinders; 16-a third working position; 17-fourth working position; 18-a hand-held ring.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings.
2-4, the device for calibrating the position of the step pad on the rolling mill comprises calibration blocks 2, wherein the number of the calibration blocks 2 is 2, each calibration block 2 is provided with an L-shaped handle 1, telescopic anti-falling connecting rods 4 are arranged between the L-shaped handles 1, positioning pins 5 are inserted in the middle positions of the anti-falling connecting rods 4, the distance between the calibration blocks 2 is not changed, and the calibration blocks 2 are prevented from falling off; when the calibration block 2 is not used, the positioning pin 5 is pulled out, and the two calibration blocks can be stored separately. The single calibration block 2 is of a cuboid structure, the roughness of a machining surface is Ra6.3, the length is the size between the outer side of the movable frame 7 and the inner side of the L-shaped fixed frame 3 when the step pad device is at the first working position 13, the width is the single-side inner side width size of the L-shaped frame, and the height is about half of the height of the movable frame 7.
A method for calibrating the position of a step pad on a rolling mill comprises the following steps:
1) The upper step pad adjusting part is adjusted to enable the fifth working position to be in a working state, a medium power source is stopped, a working ticket is transacted, the inner side of an L-shaped fixed frame on the transmission side of the step pad, the end part of a movable frame and the contact surface for placing a calibration block are cleaned up, and oiling and protecting are carried out;
2) On a ladder platform at the transmission side of the rolling mill, a calibration block is placed on the inner side of an L-shaped fixed frame and abuts against the end part, and a positioning pin is inserted in the middle position of an anti-falling connecting rod;
3) The adjusting part of the upper step backing plate is adjusted to enable the second working position to be in a working position, the upper supporting roller drives the HGC hydraulic cylinder to rise to a high position, the driving hydraulic cylinder slowly drives the movable frame to enable the first working position to be in a working position, the outer side of the end part of the movable frame just abuts against the calibration block, and no gap exists between the outer side of the end part of the movable frame, the calibration block and the inner side of the end part of the L-shaped fixed frame;
4) Calibrating the displacement of a displacement sensor of a driving hydraulic cylinder, and calibrating the displacement as the displacement of a working position of a first working position in a control system;
5) And operating the step pad to enable the second working position to be in a working position, stopping the power source and hanging the tag, disassembling the locating pin in the middle position of the anti-falling connecting rod of the calibration block, and removing the calibration block.
(6) An operator completes one-time working roll changing and rolling mill calibration action flow according to the working roll changing flow, and the calibration accuracy is verified;
(7) The implementation of the safety operation rules is strictly executed during the calibration period, and relevant medium power sources and operation ticket procedures are transacted, so that the operation safety during the calibration period is ensured.
The present invention is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present invention can fall within the scope of the present invention if the present invention has the same or similar technical solutions.
The technology, shape, and construction parts of the present invention, which are not described in detail, are known in the art.
Claims (2)
1. The device is characterized by comprising an upper step pad adjusting part and a calibrating part, wherein the calibrating part is provided with a first calibrating area and a second calibrating area which are symmetrical to each other, the first calibrating area is provided with an L-shaped handle, a calibrating block is arranged at the first end of the L-shaped handle, a handheld ring is arranged at the second end of the L-shaped handle, an anti-falling connecting rod is arranged at the L-shaped handle, and the anti-falling connecting rod of the first calibrating area and the anti-falling connecting rod of the second calibrating area are fixed through a locating pin; the upper step backing plate adjusting part is provided with an L-shaped fixed frame arranged on a mill housing, the driving hydraulic cylinder and the moving frame are arranged on the L-shaped fixed frame, and a calibration part is arranged between the inner side of the fixed frame and the moving frame;
the upper step base plate adjusting part is provided with a first step base plate, a second step base plate, a third step base plate, a first working position, a second working position and a third working position, wherein the first working position (13) is a support roller replacing position, the second working position (12) is a working roller and HGC hydraulic cylinder replacing position, and the third working position is a steel rolling position;
the rolling mill is provided with an upper supporting roller and an HGC hydraulic cylinder;
the upper step backing plate adjusting part is also provided with a fourth working position and a fifth working position, and the fourth working position and the fifth working position are steel rolling positions.
2. The calibration method based on the device for calibrating the position of the step pad on the rolling mill of claim 1 is characterized by comprising the following steps:
1) The upper step pad adjusting part is adjusted to enable the fifth working position to be in a working state, a medium power source is stopped, a working ticket is transacted, the inner side of an L-shaped fixed frame on the transmission side of the step pad, the end part of a movable frame and the contact surface for placing a calibration block are cleaned up, and oiling and protecting are carried out;
2) On a ladder platform at the transmission side of the rolling mill, a calibration block is placed on the inner side of an L-shaped fixed frame and abuts against the end part, and a positioning pin is inserted in the middle position of an anti-falling connecting rod;
3) The adjusting part of the upper step backing plate is adjusted to enable the second working position to be in a working position, the upper supporting roller drives the HGC hydraulic cylinder to rise to a high position, the driving hydraulic cylinder slowly drives the movable frame to enable the first working position to be in a working position, the outer side of the end part of the movable frame just abuts against the calibration block, and no gap exists between the outer side of the end part of the movable frame, the calibration block and the inner side of the end part of the L-shaped fixed frame;
4) Calibrating the displacement of a displacement sensor of a driving hydraulic cylinder, and calibrating the displacement as the displacement of a working position of a first working position in a control system;
5) And operating the step pad to enable the second working position to be in a working position, stopping the power source and hanging the tag, disassembling the locating pin in the middle position of the anti-falling connecting rod of the calibration block, and removing the calibration block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441779.7A CN114130831B (en) | 2021-11-30 | 2021-11-30 | Device and method for calibrating position of step pad on rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441779.7A CN114130831B (en) | 2021-11-30 | 2021-11-30 | Device and method for calibrating position of step pad on rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114130831A CN114130831A (en) | 2022-03-04 |
| CN114130831B true CN114130831B (en) | 2023-05-09 |
Family
ID=80389930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111441779.7A Active CN114130831B (en) | 2021-11-30 | 2021-11-30 | Device and method for calibrating position of step pad on rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114130831B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860650Y (en) * | 2005-12-01 | 2007-01-24 | 中国第二重型机械集团公司 | Rolling line height mark regulator of rolling mill |
| RU2340416C1 (en) * | 2007-06-04 | 2008-12-10 | Государственное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" | Method of stepped rolling |
| CN201172064Y (en) * | 2007-12-26 | 2008-12-31 | 宝山钢铁股份有限公司 | Height adjustment device of finish rolling line |
| CN101733286B (en) * | 2008-11-04 | 2012-10-03 | 上海重型机器厂有限公司 | Device for adjusting rolling line level of medium plate mill and adjusting method thereof |
| CN202461122U (en) * | 2012-02-24 | 2012-10-03 | 新疆八一钢铁股份有限公司 | Stepped pad stage-number indicator of medium and heavy plate four-high mill |
| CN205085169U (en) * | 2014-09-18 | 2016-03-16 | 北京首钢冷轧薄板有限公司 | Draw quick -witted clearning between rolls demarcation instrument of rectifying |
| CN105251785B (en) * | 2015-11-20 | 2018-03-16 | 武汉钢铁有限公司 | A kind of milling train downstairs pad position device for fast detecting and method |
| CN107008754B (en) * | 2016-01-27 | 2018-08-03 | 鞍钢股份有限公司 | A kind of roughing mill step pad failure fast roll changing method |
| CN107626743B (en) * | 2016-07-18 | 2019-02-26 | 鞍钢股份有限公司 | A kind of Hot Line finish rolling step pad automatic positioning method |
| CN207308584U (en) * | 2017-09-28 | 2018-05-04 | 安阳钢铁股份有限公司 | A kind of step pad scale for being exclusively used in step pad adjusting apparatus |
| CN107790502A (en) * | 2017-10-16 | 2018-03-13 | 辽宁科技大学 | A kind of complete six rollers cold continuous rolling frame roll line adjustment control method |
| CN111790758B (en) * | 2020-05-29 | 2022-07-15 | 首钢京唐钢铁联合有限责任公司 | Calibration method and automatic roll changing control method for lower step pad of finishing mill |
-
2021
- 2021-11-30 CN CN202111441779.7A patent/CN114130831B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114130831A (en) | 2022-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104399916A (en) | Offline rapid arc-aligning method for movable segment of arc-shaped billet continuous casting machine | |
| CN114130831B (en) | Device and method for calibrating position of step pad on rolling mill | |
| CN111822551A (en) | Overhauling device and overhauling method | |
| KR20120017646A (en) | Apparatus for adjusting roll gap | |
| CN112476699A (en) | Medium density fiberboard sweeping device | |
| CN208164035U (en) | A kind of high-precision ceramic tile cutting device | |
| CN103170594A (en) | Locating and regulating system of withdrawal and straightening machine | |
| CN114178495B (en) | Automatic centering detection device for continuous casting crystallizer and application method of automatic centering detection device | |
| CN113118223B (en) | Method for adjusting rolling center line of bar and wire continuous rolling mill set | |
| CN213812142U (en) | Wheel set measuring machine | |
| CN213021406U (en) | Measure device of steel pipe straightness | |
| CN211071290U (en) | Automatic edge purging device of strip steel rolling temper mill | |
| KR101207739B1 (en) | Apparatus for adjusting gap of rolling rolls | |
| KR200266910Y1 (en) | shaft deformation auto measure device | |
| CN220879985U (en) | Positioning device for roller system of leveling machine | |
| CN113399480A (en) | Gap bridge device for large-size bar production and operation method thereof | |
| CN112108537A (en) | Method for quickly calibrating zero position of straightening machine | |
| CN217276015U (en) | Novel automatic measuring system for outer diameter and run-out of roller | |
| CN215998190U (en) | Horizontal downward-regulating hard limiting device for head falling frame | |
| CN115178718B (en) | Square billet continuous casting production line and production process thereof | |
| CN216126315U (en) | Novel rolling width gauge | |
| CN210254811U (en) | Auxiliary device for butt welding of thick plates | |
| KR100805560B1 (en) | Apparatus for surface shape processing of pinch roll by using air pressure gap | |
| CN220387472U (en) | Rolling mill collar roller misalignment height measurement device | |
| KR100306591B1 (en) | Apparatus for automatic measuring of gaps between edger rolls by using air pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |