Method for adjusting rail seat and housing of rolling mill through laser tracker

Abstract

The invention relates to a method for adjusting rolling mill rail seats and memorial archways through a laser tracker, and belongs to the technical field of steel rolling equipment installation methods. According to the technical scheme, the method comprises the steps of extracting data, checking a datum point, carrying out inverted station arrangement, carrying out rail base rough adjustment and fine adjustment through a laser tracker, then measuring the perpendicularity of a rolling mill housing, adjusting the position of the housing according to measured data till the mounting standard is met, and then gradually locking a foundation bolt till the design value is met. The method has the beneficial effects that the vertical deviation data of the single memorial archway in the rolling line direction and the equipment line pay-off direction can be rapidly and accurately obtained, the dislocation difference value of the two memorial archways can be obtained, the precision can reach micron, the operation efficiency is improved, the repeated adjustment frequency is reduced, and the working efficiency is improved. Therefore, the installation operation of the rolling mill rail seat and the housing is accurately and efficiently completed, the operation efficiency is improved, and meanwhile the repeated adjustment frequency is reduced.

Description

Technical Field

[0001] The invention relates to a method for adjusting a rolling mill rail seat and a memorial arch using a laser tracker, and belongs to the technical field of steel rolling equipment installation methods. Background Art

[0002] For the installation of the hot rolling 1580 equipment, the task requires the equipment installation to be completed in the shortest possible time, not only 24-hour shift work but also improved work efficiency. In order to improve the installation accuracy and work efficiency of the rolling mill equipment, the rolling mill rail seat inspection elevation is about 0.1mm, the center line is controlled at 0.1mm, and the horizontal control is 0.03mm / m; the verticality of the single-piece rolling mill arch is less than 0.1mm, and the misalignment deviation of the two arches is less than 0.1mm.

[0003] The traditional precision detection method uses a total station to place points, and then hangs a line and combines manual measurement with a micrometer rod. The accuracy and efficiency of the measurement are low. The rolling mill rail seat installation site initially used a total station and prism combination method. Mark points below and hang the line with a wire rope; some surveyors use a micrometer rod to measure, which has a large workload for adjustment and poor reproducibility. At the same time, it is affected by the level of the measurement operator and the long interval between the two hanging line errors. The mill arch adjustment and the acceptance work after the adjustment are also faced with the same problems as before. Summary of the invention

[0004] The purpose of the present invention is to provide a method for adjusting the rail seat and arch of a rolling mill by using a laser tracker. By adopting the laser tracker for measurement, the vertical deviation data of a single arch along the rolling line direction and along the equipment line can be obtained quickly and accurately, and the misalignment difference between two arches can be obtained with an accuracy of microns. The operating efficiency is improved while the number of repeated adjustments is reduced, thereby accurately and efficiently completing the installation of the rail seat and arch of the rolling mill, improving the operating efficiency while reducing the number of repeated adjustments, and effectively solving the above-mentioned problems existing in the background technology.

[0005] The technical solution of the present invention is: a method for adjusting the rail seat and arch of a rolling mill by a laser tracker, comprising the following steps: S1. Extract data: Analyze the drawings, extract the data requirements for rolling mill installation, determine the acceptance method after installation and adjustment, and formulate the corresponding measurement and adjustment method according to the acceptance method; S2. Check the reference point: according to the reference points of the mill center line and rolling center line given by the wire laying personnel in the previous process, the reference points are checked using a laser tracker; S3. Layout of the reverse station: Use a laser tracker to measure the center line of the rolling mill and the center point of the rolling line, establish a measurement coordinate system, and arrange the reverse station on the operating side and the transmission side of the rolling mill; S4, rail seat rough adjustment and fine adjustment: after the rail seat slurry construction of the rolling mill is completed and meets the installation requirements, the rail seat is hoisted to the installation position by the plant crane, and the laser tracker is used for rough adjustment and fine adjustment; after the rail seat adjustment and positioning is completed, each arch of the rolling mill is seated one by one in the order of the transmission side first and the operating side later according to the rolling mill installation sequence of the established plan, the upper beam and the lower beam are connected, and then the verticality of the rolling mill arch is measured; S5. Organize rail seat acceptance: report to the project department and conduct acceptance work until it is qualified; S6. Arch installation adjustment: Verticality measurement includes two directions: rolling direction and mill direction. A laser tracker is used to simultaneously detect verticality in both directions, and to detect the misalignment error of the two arches of the mill in the rolling direction. The arch position is adjusted according to the measurement data until it meets the installation standards, and then the anchor bolts are gradually tightened until it meets the design value. S7. Organize the archway acceptance: report to the project department and carry out the acceptance work until it is qualified.

[0006] In step S2, 16 permanent reference points in the finishing mill area reserved by the civil engineering party are accepted before the equipment is installed, including two points in the rolling line direction, one at the entrance position and one at the exit position; one on the north and south sides of the seven rolling mills, and all reference points are checked with a laser tracker until all meet the requirements before starting the subsequent installation tasks.

[0007] In step S3, two groups of reverse station are arranged at appropriate positions on the operating side and the transmission side of the rolling mill. According to the reverse station arrangement principle, it is ensured that the reverse station covers the installation area of ​​the rolling mill and there is a height difference between the reverse stations. The south side is mainly used to measure the station. When there is an area that cannot be measured by the laser due to obstruction, the north side reverse station is enabled to perform measurement and adjustment.

[0008] In step S4, the steps of rough adjustment and fine adjustment of the rail seat are as follows: (41) Leveling and alignment, elevation control +0.3mm, center line control 1mm; (42) The M80 anchor bolts are pressurized to 20%, all inclined irons are padded, super-flat alignment is performed, the elevation is controlled at +0.25mm, the centerline is controlled at 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the level is controlled at 0.03mm / m; (43) The M80 anchor bolts are pressurized to 50%, the elevation is controlled at +0.2mm, the centerline is controlled at 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the horizontal control is 0.03mm / m; (44) The M100 anchor bolts are first pressurized to 20%, then to 50%, and the elevation is checked to +0.15mm, the centerline is controlled to 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the level is controlled to 0.03mm / m; (45) First pressurize the M80 anchor bolt to 70%, and the M100 anchor bolt to 70%, check the elevation +0.1mm, the center line control 0.1mm, the B1-B2 difference 0.03mm, the A1-A2 difference 0.05mm, and the horizontal control 0.03mm / m.

[0009] In the step (42), the M80 anchor bolts are pressurized to 20%, and the flat iron contact is checked to see if there is any gap. Otherwise, they are ground and chiseled, and the elevation, i.e., the positions of the four M100 bolts, are within 0.1 mm of each other. In step (43), check whether the flat iron contact is compacted and whether there is any gap. If the reading of the dial indicator of the M80 bolt preload 20%-50% does not change, it means that the pad iron is compacted. Otherwise, grind and chisel. The elevation, that is, the position of the four M100 bolts, is within 0.1 mm of each other. In step (44), check whether the flat iron contact is compacted and whether there is a gap. The pre-tightening force of the M100 bolt is 0-20%, and the elevation is reduced by 0.05mm. If the reading of the dial indicator does not change from 20% to 50%, it means that the pad iron is compacted. Otherwise, grind and chisel. The elevation, that is, the position of the four M100 bolts, is within 0.1mm of each other. In step (45), check whether the flat iron contact is compacted and whether there is any gap. If there is no change when the foundation is tightened and pressurized, it means that the shim is compacted. Otherwise, grind and chisel it. The elevation, that is, the position of the four M100 bolts, should be within 0.1 mm of each other.

[0010] In step S6, the verticality measurement and adjustment steps are as follows: after the single-piece rolling mill arch is installed on the rail seat, the arch verticality is adjusted, firstly the rolling direction, i.e., the X direction, is adjusted, and measuring points 1, 2, 3, and 4 are selected on the arch. The four measuring points are in the same plane in the design drawing. The Z value deviation between measuring point 1 and measuring point 3 and the Z value variation between measuring point 2 and measuring point 4 indicate the verticality of the arch in the Z direction; the deviation value is adjusted to meet the installation requirements, and the other arch is also adjusted using the same steps; Secondly, in the rolling mill direction, i.e., the Z direction, select measuring points A, B, C, and D on the single arch. The four measuring points are in the same plane in the design drawing. The X value deviation between measuring points A and C, and the deviation between measuring points B and D, indicate the verticality of the arch in the X direction. Adjust the deviation value to meet the installation requirements. The same steps are used to adjust the other arch. When the two arches of a rolling mill are installed on the rail seat, the X-axis deviation between measuring points A and B, and between measuring points C and D can reflect the misalignment of the two arches.

[0011] The same coordinate system is used in the rough adjustment and fine adjustment of the rail seat of each rolling mill and the arch installation adjustment. The coordinate system is obtained according to the rolling line and the equipment line. The positive direction along the rolling line exit is the positive direction of X, the positive direction along the equipment line points to the south, and the positive direction of Y points upward.

[0012] The beneficial effects of the present invention are as follows: by adopting the laser tracker for measurement, not only can the vertical deviation data of a single arch along the rolling line direction and along the equipment line be obtained quickly and accurately, but also the misalignment difference between two arches can be obtained with an accuracy of microns, thereby improving the operating efficiency while reducing the number of repeated adjustments, thereby accurately and efficiently completing the installation of the rolling mill rail seat and arch, improving the operating efficiency while reducing the number of repeated adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a model diagram of the F4 rolling mill arch after installation in the embodiment of the present invention; Figure 2 This is a schematic diagram of the distribution of inverted stations for measuring the finishing mill area according to an embodiment of the present invention; Figure 3 It is a schematic diagram of a measuring coordinate system for installing a rail seat and a rolling mill arch according to the present invention; Figure 4 It is a schematic diagram of the size distribution for installation and acceptance of the rail seat in an embodiment of the present invention; Figure 5 Schematic diagram of the distribution of measuring points on both sides of the rolling line direction and the equipment line direction of the embodiment of the present invention; In the figure: rolling mill center line 1, rolling center line 2, west permanent reference point 3, east permanent reference point 4, south permanent reference point 5, north permanent reference point 6, transmission side 7, operation side 8, entrance 9, exit 10, north side reverse station one 11, north side reverse station two 12, north side reverse station three 13, north side reverse station four 14, north side reverse station five 15, north side reverse station six 16, north side reverse station seven 17, north side reverse station eight 18, north side reverse station nine 19, North side reverse station ten 110, south side reverse station one 21, south side reverse station two 22, south side reverse station three 23, south side reverse station four 24, south side reverse station five 25, south side reverse station six 26, south side reverse station seven 27, south side reverse station eight 28, south side reverse station nine 29, south side reverse station ten 210, south side reverse station eleven 211, equipment line direction 31, rolling line exit direction 32, measuring point one 41, measuring point two 42, measuring point three 43, measuring point four 44. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the invention implementation cases clearer, the technical solutions in the implementation cases of the present invention will be clearly and completely described below in conjunction with the drawings in the implementation cases. Obviously, the implementation cases described are only a small part of the implementation cases of the present invention, rather than all the implementation cases. Based on the implementation cases in the present invention, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] A method for adjusting a rolling mill rail seat and a roller arch using a laser tracker comprises the following steps: S1. Extract data: Analyze the drawings, extract the data requirements for rolling mill installation, determine the acceptance method after installation and adjustment, and formulate the corresponding measurement and adjustment method according to the acceptance method; S2. Check the reference point: according to the reference points of the mill center line and rolling center line given by the wire laying personnel in the previous process, the reference points are checked using a laser tracker; S3. Layout of the reverse station: Use a laser tracker to measure the center line of the rolling mill and the center point of the rolling line, establish a measurement coordinate system, and arrange the reverse station on the operating side and the transmission side of the rolling mill; S4, rail seat rough adjustment and fine adjustment: after the rail seat slurry construction of the rolling mill is completed and meets the installation requirements, the rail seat is hoisted to the installation position by the plant crane, and the laser tracker is used for rough adjustment and fine adjustment; after the rail seat adjustment and positioning is completed, each arch of the rolling mill is seated one by one in the order of the transmission side first and the operating side later according to the rolling mill installation sequence of the established plan, the upper beam and the lower beam are connected, and then the verticality of the rolling mill arch is measured; S5. Organize rail seat acceptance: report to the project department and conduct acceptance work until it is qualified; S6. Arch installation adjustment: Verticality measurement includes two directions: rolling direction and mill direction. A laser tracker is used to simultaneously detect verticality in both directions, and to detect the misalignment error of the two arches of the mill in the rolling direction. The arch position is adjusted according to the measurement data until it meets the installation standards, and then the anchor bolts are gradually tightened until it meets the design value. S7. Organize the archway acceptance: report to the project department and carry out the acceptance work until it is qualified.

[0016] In step S2, 16 permanent reference points in the finishing mill area reserved by the civil engineering party are accepted before the equipment is installed, including two points in the rolling line direction, one at the entrance position and one at the exit position; one on the north and south sides of the seven rolling mills, and all reference points are checked with a laser tracker until all meet the requirements before starting the subsequent installation tasks.

[0017] In step S3, two groups of reverse station are arranged at appropriate positions on the operating side and the transmission side of the rolling mill. According to the reverse station arrangement principle, it is ensured that the reverse station covers the installation area of ​​the rolling mill and there is a height difference between the reverse stations. The south side is mainly used to measure the station. When there is an area that cannot be measured by the laser due to obstruction, the north side reverse station is enabled to perform measurement and adjustment.

[0018] In step S4, the steps of rough adjustment and fine adjustment of the rail seat are as follows: (41) Leveling and alignment, elevation control +0.3mm, center line control 1mm; (42) The M80 anchor bolts are pressurized to 20%, all inclined irons are padded, super-flat alignment is performed, the elevation is controlled at +0.25mm, the centerline is controlled at 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the level is controlled at 0.03mm / m; (43) The M80 anchor bolts are pressurized to 50%, the elevation is controlled at +0.2mm, the centerline is controlled at 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the horizontal control is 0.03mm / m; (44) The M100 anchor bolts are first pressurized to 20%, then to 50%, and the elevation is checked to +0.15mm, the centerline is controlled to 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the level is controlled to 0.03mm / m; (45) First pressurize the M80 anchor bolt to 70%, and the M100 anchor bolt to 70%, check the elevation +0.1mm, the center line control 0.1mm, the B1-B2 difference 0.03mm, the A1-A2 difference 0.05mm, and the horizontal control 0.03mm / m.

[0019] In the step (42), the M80 anchor bolts are pressurized to 20%, and the flat iron contact is checked to see if there is any gap. Otherwise, they are ground and chiseled, and the elevation, i.e., the positions of the four M100 bolts, are within 0.1 mm of each other. In step (43), check whether the flat iron contact is compacted and whether there is any gap. If the reading of the dial indicator of the M80 bolt preload 20%-50% does not change, it means that the pad iron is compacted. Otherwise, grind and chisel. The elevation, that is, the position of the four M100 bolts, is within 0.1 mm of each other. In step (44), check whether the flat iron contact is compacted and whether there is a gap. The pre-tightening force of the M100 bolt is 0-20%, and the elevation is reduced by 0.05mm. If the reading of the dial indicator does not change from 20% to 50%, it means that the pad iron is compacted. Otherwise, grind and chisel. The elevation, that is, the position of the four M100 bolts, is within 0.1mm of each other. In step (45), check whether the flat iron contact is compacted and whether there is any gap. If there is no change when the foundation is tightened and pressurized, it means that the shim is compacted. Otherwise, grind and chisel it. The elevation, that is, the position of the four M100 bolts, should be within 0.1 mm of each other.

[0020] In step S6, the verticality measurement and adjustment steps are as follows: after the single-piece rolling mill arch is installed on the rail seat, the arch verticality is adjusted, firstly the rolling direction, i.e., the X direction, is adjusted, and measuring points 1, 2, 3, and 4 are selected on the arch. The four measuring points are in the same plane in the design drawing. The Z value deviation between measuring point 1 and measuring point 3 and the Z value variation between measuring point 2 and measuring point 4 indicate the verticality of the arch in the Z direction; the deviation value is adjusted to meet the installation requirements, and the other arch is also adjusted using the same steps; Secondly, in the rolling mill direction, i.e., the Z direction, select measuring points A, B, C, and D on the single arch. The four measuring points are in the same plane in the design drawing. The X value deviation between measuring points A and C, and the deviation between measuring points B and D, indicate the verticality of the arch in the X direction. Adjust the deviation value to meet the installation requirements. The same steps are used to adjust the other arch. When the two arches of a rolling mill are installed on the rail seat, the X-axis deviation between measuring points A and B, and between measuring points C and D can reflect the misalignment of the two arches.

[0021] The same coordinate system is used in the rough adjustment and fine adjustment of the rail seat of each rolling mill and the arch installation adjustment. The coordinate system is obtained according to the rolling line and the equipment line. The positive direction along the rolling line exit is the positive direction of X, the positive direction along the equipment line points to the south, and the positive direction of Y points upward. Example

[0022] 1. According to the reference points of the given mill center line and rolling center line made by the layout personnel of the previous process, the reference points are calibrated using a laser tracker. The current mill installation sequence is based on the intersection of the mill center line and the rolling line of the 4th mill, i.e., F4 mill, as the installation reference for the entire mill area.

[0023] 2. Use a laser tracker to measure the center line and rolling line center point of the F4 rolling mill, establish a measurement coordinate system, and arrange two groups of counter-points at appropriate positions on the operation side and transmission side of the rolling mill, preferably 8-10 counter-points in each group. According to the counter-point layout principle, try to ensure that the counter-points cover the mill installation area, and there should be a height difference between the counter-points.

[0024] 3. After the mill rail seat (equipment rail seat) slurry construction is completed and meets the installation requirements, the rail seat is hoisted to the installation position by the plant crane and roughly adjusted using a laser tracker. In the subsequent measurement and adjustment, the inclined iron hanging line of the rail seat is leveled and aligned, the rail seat elevation is measured using a level, and the remaining rail seat horizontal dimensions and arch dimensions are measured and adjusted using a laser tracker.

[0025] 4. Rail seat adjustment: 1). Leveling and alignment: Each rolling mill rail seat has four sets of inclined irons; the elevation of each set is controlled at about +0.3mm, and the center line is controlled at about 1mm.

[0026] 2). Pressurize the M80 anchor bolts to 20%, pad all the inclined irons, align the super flatness, and control the elevation to about +0.25mm. To measure and adjust the horizontal dimensions of the rolling mill rail seat, first establish the measurement coordinate system for the rail seat and the rolling mill arch installation. Figure 3 As shown, the centerline is controlled at 0.1mm (B1-B2 difference 0.03mm, A1-A2 difference 0.05mm), and the horizontal control is 0.03mm / m.

[0027] Note: Check whether the flat iron contact is compacted and whether there is any gap, grind and chisel; the elevation (position of 4 M100 bolts) should be within 0.1mm of each other.

[0028] 3). The M80 anchor bolts are pressurized to 50%, the elevation is controlled at about +0.2mm, the center line is controlled at 0.1mm (B1-B2 difference 0.03mm, A1-A2 difference 0.05mm), and the level is controlled at 0.03mm / m.

[0029] Note: Check whether the flat iron contact is compacted and whether there is any gap (the M80 bolt preload 20%-50% dial indicator reading has no change, indicating that the shim is compacted), grind and chisel; the elevation (4 M100 bolt positions) should be within 0.1mm of each other.

[0030] 4). First pressurize the M100 anchor bolt to 20%, then pressurize to 50%, check the elevation to about +0.15mm, control the center line to 0.1mm (B1-B2 difference 0.03mm, A1-A2 difference 0.05mm), and control the level to 0.03mm / m.

[0031] Note: Check whether the flat iron contact is compacted and whether there is any gap (M100 bolt preload 0-20% (elevation drops 0.05mm), 20%-50% dial indicator reading has no change, indicating that the pad is compacted), grind and chisel; the elevation (4 M100 bolt positions) should be within 0.1mm of each other.

[0032] 5). First pressurize the M80 anchor bolts to 70%, and the M100 anchor bolts to 70%, check the elevation to about +0.1mm, control the center line to 0.1mm (B1-B2 difference 0.03mm, A1-A2 difference 0.05mm), and control the level to 0.03mm / m.

[0033] Note: Check whether the flat iron contact is compacted and whether there is any gap (there is 100% no change when the foundation is tightened and pressurized), grind and chisel; the elevation (position of 4 M100 bolts) should be within 0.1mm of each other.

[0034] 5. After the rail seat is adjusted and positioned, it is inspected and the size distribution is inspected. Figure 4 After each rolling mill rail seat is accepted, each mill arch is seated one by one in the order of transmission side first and operation side later according to the established mill installation sequence, the upper and lower beams are connected, and then the verticality of the mill arch is measured.

[0035] 6. Verticality measurement is divided into rolling direction and rolling mill direction. Using a laser tracker, you can select a suitable location on the construction site and perform verticality detection in two directions at the same time. It can also detect the misalignment error of the two arches of the rolling mill in the rolling direction.

[0036] 1). Verticality measurement is divided into rolling direction and rolling mill direction. Using a laser tracker, a suitable position can be selected on the construction site to perform verticality detection in two directions at the same time. It can also detect the misalignment error of the two arches of the rolling mill in the rolling direction.

[0037] 2) If Figure 5 , after the single-piece rolling mill arch is installed on the rail seat, adjust the arch verticality: first, in the rolling direction (X direction), select measuring points 1, 2, 3, and 4 on the arch (the measuring points are in the same plane in the design drawing), the Z value deviation between measuring points 1 and 3, and the Z value variation between measuring points 2 and 4 indicate the verticality of the arch in the Z direction; adjust the deviation value to meet the installation requirements. The same steps are used to adjust the other arch.

[0038] 3) Secondly, in the rolling mill direction (Z direction), select measuring points A, B, C, and D on the single arch (the measuring points are in the same plane in the design drawing), and the X value deviation between measuring points A and C, and the deviation between measuring points B and D, which indicate the verticality of the arch in the X direction. Adjust the deviation value to meet the installation requirements. The same steps are used to adjust the other arch.

[0039] like Figure 5 When the two arches of a rolling mill are installed on the rail seat, the X-axis deviation between measuring points A and B, and between measuring points C and D can reflect the misalignment of the two arches.

[0040] Adjust the arch position according to the measured data until it meets the installation standards, and then gradually tighten the anchor bolts until it meets the design value.

[0041] The above is the installation method of F4 rolling mill arch. According to this scheme, other rolling mills are installed step by step, and finally the installation of the rolling mill train is completed, and finally the rolling mill equipment and piping installation are entered.

[0042] The method of the present invention perfectly combines theory and practice, is easy to operate, and has significant effects. It is at the leading level in the same industry at home and abroad. Its successful implementation meets the requirements of high efficiency and high precision of the operation task, improves the operation efficiency and reduces the number of repeated adjustments. Its theory and method have wide promotion value in the installation, maintenance and adjustment of other hot rolling equipment.

[0043] The present invention is to solve the problems of tight time, heavy workload and poor efficiency in the current rolling mill installation operation, and to develop a new installation and adjustment method. The present invention can improve the installation accuracy and operation efficiency of production equipment for rolling mill installation. By adopting the newly developed laser tracker measurement and adjustment method, the installation accuracy of the rolling mill equipment can reach the micron level, so as to accurately and efficiently complete the installation of the rolling mill rail seat and archway, effectively solving the above-mentioned problems existing in the background technology.

Claims

1. A method for adjusting the rail seat and arch of a rolling mill using a laser tracker. Features The following steps are involved: S1. Extract data: Analyze the drawings, extract the data requirements for rolling mill installation, determine the acceptance method after installation and adjustment, and formulate the corresponding measurement and adjustment method according to the acceptance method; S2. Check the reference point: according to the reference points of the mill center line and rolling center line given by the wire laying personnel in the previous process, the reference points are checked using a laser tracker; S3. Layout of the reverse station: Use a laser tracker to measure the center line of the rolling mill and the center point of the rolling line, establish a measurement coordinate system, and arrange the reverse station on the operating side and the transmission side of the rolling mill; S4, rail seat rough adjustment and fine adjustment: after the rail seat slurry construction of the rolling mill is completed and meets the installation requirements, the rail seat is hoisted to the installation position by the plant crane, and the laser tracker is used for rough adjustment and fine adjustment; after the rail seat adjustment and positioning is completed, each arch of the rolling mill is seated one by one in the order of the transmission side first and the operating side later according to the rolling mill installation sequence of the established plan, the upper beam and the lower beam are connected, and then the verticality of the rolling mill arch is measured; S5. Organize rail seat acceptance: report to the project department and conduct acceptance work until it is qualified; S6. Arch installation adjustment: Verticality measurement includes two directions: rolling direction and mill direction. A laser tracker is used to simultaneously detect verticality in both directions, and to detect the misalignment error of the two arches of the mill in the rolling direction. The arch position is adjusted according to the measurement data until it meets the installation standards, and then the anchor bolts are gradually tightened until it meets the design value. S7. Organize the archway acceptance: report to the project department and carry out the acceptance work until it is qualified.

2. A method for adjusting the rail seat and arch of a rolling mill using a laser tracker according to claim 1, Features: In step S2, 16 permanent reference points in the finishing mill area reserved by the civil engineering party are accepted before the equipment is installed, including two points in the rolling line direction, one at the entrance position and one at the exit position; one on the north and south sides of the seven rolling mills, and all reference points are checked with a laser tracker until all meet the requirements before starting the subsequent installation tasks.

3. A method for adjusting the rail seat and arch of a laser tracker rolling mill according to claim 1, Features: In step S3, two groups of reverse station are arranged at appropriate positions on the operating side and the transmission side of the rolling mill. According to the reverse station arrangement principle, it is ensured that the reverse station covers the installation area of ​​the rolling mill and there is a height difference between the reverse stations. The south side is mainly used to measure the station. When there is an area that cannot be measured by the laser due to obstruction, the north side reverse station is enabled to perform measurement and adjustment.

4. A method for adjusting the rail seat and arch of a rolling mill using a laser tracker according to claim 1, Features: In step S4, the steps of rough adjustment and fine adjustment of the rail seat are as follows: (41) Leveling and alignment, elevation control +0.3mm, center line control 1mm; (42) The M80 anchor bolts are pressurized to 20%, all inclined irons are padded, super-flat alignment is performed, the elevation is controlled at +0.25mm, the centerline is controlled at 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the level is controlled at 0.03mm / m; (43) The M80 anchor bolts are pressurized to 50%, the elevation is controlled at +0.2mm, the centerline is controlled at 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the horizontal control is 0.03mm / m; (44) The M100 anchor bolts are first pressurized to 20%, then to 50%, and the elevation is checked to +0.15mm, the centerline is controlled to 0.1mm, the B1-B2 difference is 0.03mm, the A1-A2 difference is 0.05mm, and the level is controlled to 0.03mm / m; (45) First pressurize the M80 anchor bolt to 70%, and the M100 anchor bolt to 70%, check the elevation +0.1mm, the center line control 0.1mm, the B1-B2 difference 0.03mm, the A1-A2 difference 0.05mm, and the horizontal control 0.03mm / m.

5. A method for adjusting the rail seat and arch of a laser tracker rolling mill according to claim 4, Features: In the step (42), the M80 anchor bolts are pressurized to 20%, and the flat iron contact is checked to see if there is any gap. Otherwise, they are ground and chiseled, and the elevation, i.e., the positions of the four M100 bolts, are within 0.1 mm of each other. In step (43), check whether the flat iron contact is compacted and whether there is any gap. If the reading of the dial indicator of the M80 bolt preload 20%-50% does not change, it means that the pad iron is compacted. Otherwise, grind and chisel. The elevation, that is, the position of the four M100 bolts, is within 0.1 mm of each other. In step (44), check whether the flat iron contact is compacted and whether there is a gap. The pre-tightening force of the M100 bolt is 0-20%, and the elevation is reduced by 0.05mm. If the reading of the dial indicator does not change from 20% to 50%, it means that the pad iron is compacted. Otherwise, grind and chisel. The elevation, that is, the position of the four M100 bolts, is within 0.1mm of each other. In step (45), check whether the flat iron contact is compacted and whether there is any gap. If there is no change when the foundation is tightened and pressurized, it means that the shim is compacted. Otherwise, grind and chisel it. The elevation, that is, the position of the four M100 bolts, should be within 0.1 mm of each other.

6. A method for adjusting the rail seat and arch of a rolling mill using a laser tracker according to claim 1, Features: In step S6, the verticality measurement and adjustment steps are as follows: after the single-piece rolling mill arch is installed on the rail seat, the arch verticality is adjusted, firstly the rolling direction, i.e., the X direction, is adjusted, and measuring points 1, 2, 3, and 4 are selected on the arch. The four measuring points are in the same plane in the design drawing. The Z value deviation between measuring point 1 and measuring point 3 and the Z value variation between measuring point 2 and measuring point 4 indicate the verticality of the arch in the Z direction; the deviation value is adjusted to meet the installation requirements, and the other arch is also adjusted using the same steps; Secondly, in the rolling mill direction, i.e., the Z direction, select measuring points A, B, C, and D on the single arch. The four measuring points are in the same plane in the design drawing. The X value deviation between measuring points A and C, and the deviation between measuring points B and D, indicate the verticality of the arch in the X direction. Adjust the deviation value to meet the installation requirements. The same steps are used to adjust the other arch. When the two arches of a rolling mill are installed on the rail seat, the X-axis deviation between measuring points A and B, and between measuring points C and D can reflect the misalignment of the two arches.

7. A method for adjusting the rail seat and arch of a rolling mill using a laser tracker according to claim 1, Features: The same coordinate system is used in the rough adjustment and fine adjustment of the rail seat of each rolling mill and the arch installation adjustment. The coordinate system is obtained according to the rolling line and the equipment line. The positive direction along the rolling line exit is the positive direction of X, the positive direction along the equipment line points to the south, and the positive direction of Y points upward.

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