CN112577399A - Rolling mill stand verticality measuring device and measuring method - Google Patents
Rolling mill stand verticality measuring device and measuring method Download PDFInfo
- Publication number
- CN112577399A CN112577399A CN202011371454.1A CN202011371454A CN112577399A CN 112577399 A CN112577399 A CN 112577399A CN 202011371454 A CN202011371454 A CN 202011371454A CN 112577399 A CN112577399 A CN 112577399A
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- fixed seat
- measuring
- perpendicularity
- inside micrometer
- micrometer
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/245—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing perpendicularity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
- G01B7/305—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes for testing perpendicularity
Abstract
The invention relates to the technical field of installation of a rolling stand, and provides a device for measuring the perpendicularity of the rolling stand, which comprises a theodolite and an inner micrometer; the two ends of the inside micrometer are respectively a measuring end and an installation end; the fixing seat is magnetically connected with the rack; the mounting end of the inside micrometer is connected with the fixed seat; the fixed seat is provided with a mounting surface back to the inner micrometer; the mounting surface is a plane which is perpendicular to the axial direction of the inside micrometer. The method for measuring the perpendicularity of the rolling mill stand is characterized in that the perpendicularity of the stand is measured by adopting a rolling mill stand perpendicularity measuring device. The verticality of the rack is measured by matching the theodolite with the internal micrometer, so that the measuring result is not influenced by environmental factors, the problem that the error of measured data is large due to the fact that a steel wire shakes in the prior art is solved, and the verticality accuracy of the rack is improved.
Description
Technical Field
The invention relates to the technical field of installation of rolling stands, in particular to a device and a method for measuring the perpendicularity of a rolling stand.
Background
In the installation process of a rolling mill frame, the perpendicularity of the rolling mill frame needs to be measured after the rolling mill frame is in place, and the traditional measuring method comprises the following steps: a steel support is fixed above the rack, a steel wire with the diameter of 0.5mm is hung on the steel support, a wire drop is hung at the lower end of the steel wire to keep the steel wire in a straightening state, and the distances from the steel wire to different positions on a reference surface of the rack are measured through an inside micrometer, so that the verticality of the rack is obtained. When the verticality of the rack is unqualified, the anchor bolt of the baseboard is loosened, and the verticality of the rack is adjusted by the base plate. However, the method for measuring the perpendicularity of the rack is greatly influenced by construction environment factors, and particularly in windy environments, the stability of a line drop is not enough, so that a steel wire shakes, the error of measured data is large, and the accuracy of the perpendicularity of the rack is influenced.
Disclosure of Invention
The invention aims to provide a device and a method for measuring the perpendicularity of a rolling mill stand, and improve the accuracy of the perpendicularity of the rolling mill stand.
The technical scheme adopted by the invention for solving the technical problems is as follows: the perpendicularity measuring device of the rolling mill stand comprises a theodolite and an inner micrometer; the two ends of the inside micrometer are respectively a measuring end and an installation end; the fixing seat is magnetically connected with the rack; the mounting end of the inside micrometer is connected with the fixed seat; the fixed seat is provided with a mounting surface back to the inner micrometer; the mounting surface is a plane which is perpendicular to the axial direction of the inside micrometer.
Furthermore, the mounting end of the inside micrometer is detachably connected with the fixing seat in a threaded connection mode.
Further, the fixing seat is a magnet.
Furthermore, the fixed seat is also provided with a fixed seat positioning surface; the fixing seat positioning surface is a plane perpendicular to the mounting surface.
Further, the fixed seat is cuboid or square; two surfaces of the fixing seat form a mounting surface and a fixing seat positioning surface.
The method for measuring the perpendicularity of the rolling mill frame adopts the device for measuring the perpendicularity of the rolling mill frame to measure the perpendicularity of the rolling mill frame and comprises the following steps:
s1, arranging a transverse datum line and a longitudinal datum line which are perpendicular to each other on the ground; erecting the theodolite on a transverse reference line or a longitudinal reference line, and adjusting the theodolite;
s2, connecting the fixed seat with the inside micrometer; attaching the mounting surface of the fixed seat to a frame datum plane on the frame, and magnetically connecting the fixed seat to a position A on the frame datum plane; rotating the inside micrometer, controlling the end face of the measuring end of the inside micrometer to align with a cross line in the lens of the theodolite, and reading a1 on the inside micrometer;
s3, moving the fixed seat downwards to a position B on the frame datum plane; wherein, the distance between the A position and the B position is L; rotating the inside micrometer, controlling the end face of the measuring end of the inside micrometer to align with a cross line in the lens of the theodolite, and reading a reading b1 on the inside micrometer; the verticality of the frame is
Further, in step S3, the distance L between positions a and B is greater than 1000 mm.
The invention has the beneficial effects that:
according to the device for measuring the perpendicularity of the rolling mill stand, provided by the embodiment of the invention, the inner micrometer can be magnetically connected to the stand through the fixed seat without adopting other connecting devices through the fixed seat. Through setting up the axial installation face of perpendicular to inside micrometer on the fixing base, only need with the installation face of fixing base and the frame reference surface laminating in the frame, just can guarantee the axial perpendicular to frame reference surface of inside micrometer, and then just can accomplish the measurement work of frame straightness that hangs down under the cooperation of theodolite, solved among the prior art because the steel wire rocks and causes the great problem of measured data error, improved the straightness's of accuracy that hangs down of frame.
According to the method for measuring the perpendicularity of the rolling mill stand, provided by the embodiment of the invention, the perpendicularity of the stand can be measured through the matching of the theodolite and the inside micrometer, so that the measuring result is not influenced by environmental factors, the problem of large error of measured data caused by shaking of a steel wire in the prior art is solved, and the accuracy of the perpendicularity of the stand is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below; it is obvious that the drawings in the following description are only some embodiments described in the present invention, and that other drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a rolling mill stand perpendicularity measuring device according to an embodiment of the present invention when measuring the perpendicularity of the stand;
fig. 2 is a schematic structural diagram of the inside micrometer after being connected with the fixing seat in the embodiment of the invention.
The reference numbers in the figures are: 1-theodolite, 2-inside micrometer, 3-measuring end, 4-mounting end, 5-fixing seat, 6-mounting surface, 7-fixing seat positioning surface, 8-frame, 9-transverse datum line, 10-longitudinal datum line and 11-frame datum plane.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following further description is provided in conjunction with the accompanying drawings and examples. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. The embodiments and features of the embodiments of the invention may be combined with each other without conflict.
Referring to fig. 1 and 2, the device for measuring the perpendicularity of the rolling stand according to the embodiment of the invention includes a theodolite 1 and an inside micrometer 2; the two ends of the inside micrometer 2 are respectively a measuring end 3 and a mounting end 4; the device also comprises a fixed seat 5 which is magnetically connected with the frame 8; the mounting end 4 of the inside micrometer 2 is connected with the fixed seat 5; the fixed seat 5 is provided with a mounting surface 6 arranged back to the inner micrometer 2; the mounting surface 6 is a plane which is perpendicular to the axial direction of the inside micrometer 2.
According to the device for measuring the perpendicularity of the rolling mill stand provided by the embodiment of the invention, the inner micrometer 2 can be magnetically connected to the stand 8 through the fixing seat 5 by arranging the fixing seat 5 without adopting other connecting devices. Through set up 2 axial installation faces 6 of perpendicular to internal micrometer on fixing base 5, only need to laminate 6 of installation face of fixing base 5 with frame reference surface 11 on the frame 8, just can guarantee the axial perpendicular to frame reference surface 11 of internal micrometer 2, and then just can accomplish the straightness's of the measurement work of frame 8 under the cooperation of theodolite 1.
According to the device for measuring the perpendicularity of the rolling mill stand, provided by the embodiment of the invention, the mounting end 4 of the inside micrometer 2 is detachably connected with the fixed seat 5 in a threaded connection mode.
For example, the mounting end 4 of the inside micrometer 2 is provided with an external thread section, and the fixed seat 5 is provided with an internal thread hole matched with the external thread section; during the installation, in the internal thread hole on the installation end 4 wrong fixing base 5 with inside micrometer 2, and then link together inside micrometer 2's installation end 4 and fixing base 5 detachably.
For example, the mounting end 4 of the inside micrometer 2 is provided with an internal threaded hole, and the fixed seat 5 is provided with a threaded shaft matched with the internal threaded hole; during the installation, twist the threaded shaft on the fixing base 5 in the internal thread hole of the installation end 4 of the inside micrometer 2, and then connect the installation end 4 of the inside micrometer 2 with the fixing base 5 detachably together.
Of course, the mounting end 4 of the inside micrometer 2 and the fixing seat 5 may be connected by gluing, clamping, or by fastening members such as bolts, and are not limited in this respect.
According to the device for measuring the perpendicularity of the rolling mill stand provided by the embodiment of the invention, the fixed seat 5 and the stand 8 are connected in a magnetic manner.
For example, the fixing base 5 is a magnet. After the mounting surface 6 of the fixing seat 5 is attached to the surface of the rack 8, the fixing seat 5 is magnetically adsorbed on the rack 8.
For example, the fixing seat 5 includes a mounting block and a magnet, the mounting block is connected with the mounting end 4 of the inside micrometer 2, the mounting block is provided with a mounting surface 6 perpendicular to the axial direction of the inside micrometer 2, the mounting surface 6 is provided with at least one groove, a magnet is fixed in each groove, and the surface of the magnet is flush with the mounting surface 6. After the mounting surface 6 of the mounting block is attached to the surface of the rack 8, the mounting block is attracted to the rack 8 through a magnet.
According to the device for measuring the perpendicularity of the rolling mill stand provided by the embodiment of the invention, the fixed seat 5 is also provided with a fixed seat positioning surface 7; the fixing seat positioning surface 7 is a plane perpendicular to the mounting surface 6. Through setting up fixing base locating surface 7, when fixing base 5 shift position on frame reference surface 11, can use fixing base locating surface 7 on the fixing base 5 as the measuring basis, through measuring the distance that this fixing base locating surface 7 removed, reach the purpose of accurate control fixing base 5 displacement.
In the device for measuring the perpendicularity of the rolling mill stand provided by the embodiment of the invention, the fixed seat 5 is in a cuboid shape or a square shape; two surfaces of the fixed seat 5 form a mounting surface 6 and a fixed seat positioning surface 7. Of course, the fixing seat 5 may have other shapes, and is not limited in particular.
The method for measuring the perpendicularity of the rolling mill stand provided by the embodiment of the invention adopts the rolling mill stand perpendicularity measuring device to measure the perpendicularity of the stand 8, and comprises the following steps:
s1, arranging a transverse datum line 9 and a longitudinal datum line 10 which are perpendicular to each other on the ground; erecting the theodolite 1 on a transverse datum line 9 or a longitudinal datum line 10, and adjusting the theodolite 1;
s2, connecting the fixed seat 5 with the inside micrometer 2; attaching the mounting surface 6 of the fixed seat 5 to a frame reference surface 11 on the frame 8, and magnetically connecting the fixed seat 5 to a position A on the frame reference surface 11; rotating the inside micrometer 2, controlling the end surface of the measuring end 3 of the inside micrometer 2 to align with a cross line in the lens of the theodolite 1, and reading a1 on the inside micrometer 2;
s3, moving the fixed seat 5 downwards to a position B on the frame reference surface 11; wherein, the distance between the A position and the B position is L; rotating the inside micrometer 2, controlling the end surface of the measuring end 3 of the inside micrometer 2 to align with a cross line in the lens of the theodolite 1, and reading a reading b1 on the inside micrometer 2; the perpendicularity of the frame 8 is
In step S1, the transverse reference line 9 is disposed parallel to the transverse center line of the rack 8, and the longitudinal reference line 10 is disposed parallel to the longitudinal center line of the rack 8. The theodolite 1 is erected on the transverse datum line 9 or the longitudinal datum line 10, and the position of the theodolite 1 is adjusted, so that the vertical axis of a cross line in a lens of the theodolite 1 is coplanar with the datum line, and the erection and adjustment work of the theodolite 1 is completed.
In step S2, the frame 8 has a plurality of finished frame reference surfaces 11, and the frame reference surfaces 11 are vertically arranged planes. When the gantry 8 is in position, the part of the gantry reference plane 11 is parallel to the transverse reference line 9 and the part of the gantry reference plane 11 is parallel to the longitudinal reference line 10. After the fixing seat 5 is magnetically connected to the frame reference surface 11, the fixing seat positioning surface 7 on the fixing seat 5 is controlled to be in a horizontal state, and the position of the fixing seat 5 is accurately positioned through the fixing seat positioning surface 7.
In step S3, in order to improve the accuracy of the verticality of the frame 8, the distance between the position a and the position B on the frame 8 should be as long as possible, and preferably, the distance L between the position a and the position B is greater than 1000 mm.
The length of the inside micrometer 2 is set according to the distance between the frame reference surface 11 and the transverse reference line 9 or the longitudinal reference line 10 parallel to the frame reference surface 11. Preferably, after the frame 8 is in place, the distance between the frame reference surface 11 and the transverse reference line 9 or the longitudinal reference line 10 parallel to the frame reference surface 11 is 200-300mm, so that the inside micrometer 2 with the length of 200-300mm can be selected.
In steps S2 and S3, before the inside micrometer 2 is rotated, a reflector is provided at the measuring end 3 of the inside micrometer 2, and a flashlight is used to irradiate the reflector. Can increase the luminance of the measuring end 3 department of inside micrometer 2 like this to solve the problem that reading difficulty and error are great under the darker condition of light, thereby avoid reading error to the straightness's of 8 squareness's of frame influence.
According to the method for measuring the perpendicularity of the rolling mill stand, provided by the embodiment of the invention, the perpendicularity of the stand 8 can be measured through the matching of the theodolite 1 and the inside micrometer 2, so that the measuring result is not influenced by environmental factors, the problem of large error of measured data caused by shaking of a steel wire in the prior art is solved, and the accuracy of the perpendicularity of the stand is improved.
When the verticality of the frame 8 is unqualified, the anchor bolt of the baseboard is loosened, and the verticality of the frame 8 is adjusted by the base plate. Meanwhile, a frame-type level meter is adopted to measure the levelness of the rack 8, and when the verticality and the levelness of the rack 8 meet the requirements, the fine adjustment work of the rack 8 is completed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The perpendicularity measuring device of the rolling mill stand comprises a theodolite (1) and an inner micrometer (2); the two ends of the inside micrometer (2) are respectively a measuring end (3) and a mounting end (4); the device is characterized by also comprising a fixed seat (5) which is magnetically connected with the frame (8); the mounting end (4) of the inside micrometer (2) is connected with the fixed seat (5); the fixed seat (5) is provided with a mounting surface (6) which is back to the inner micrometer (2); the mounting surface (6) is a plane which is perpendicular to the axial direction of the inside micrometer (2).
2. Mill stand squareness measurement device according to claim 1, characterized in that the mounting end (4) of the inside micrometer (2) is removably connected with the fixed seat (5) by means of a threaded connection.
3. Mill stand squareness measuring device according to claim 1, characterized in that said fixed seat (5) is a magnet.
4. Mill stand squareness measuring device according to claim 1, 2 or 3, characterized in that said fixed seat (5) is also provided with a fixed seat positioning surface (7); the fixing seat positioning surface (7) is a plane perpendicular to the mounting surface (6).
5. Rolling mill stand squareness measuring device according to claim 4, characterized in that said fixed seat (5) is rectangular parallelepiped or square; two surfaces of the fixed seat (5) form a mounting surface (6) and a fixed seat positioning surface (7).
6. Method for measuring the perpendicularity of a rolling stand, characterized in that the perpendicularity of the stand (8) is measured using a device for measuring the perpendicularity of a rolling stand according to any one of claims 1 to 5, comprising the steps of:
s1, arranging a transverse datum line (9) and a longitudinal datum line (10) which are perpendicular to each other on the ground; erecting the theodolite (1) on a transverse datum line (9) or a longitudinal datum line (10), and adjusting the theodolite (1);
s2, connecting the fixed seat (5) with the inside micrometer (2); attaching the mounting surface (6) of the fixed seat (5) to a frame reference surface (11) on the frame (8), and magnetically connecting the fixed seat (5) to a position A on the frame reference surface (11); rotating the inside micrometer (2), controlling the end surface of the measuring end (3) of the inside micrometer (2) to align with a cross line in a lens of the theodolite (1), and reading a1 on the inside micrometer (2);
s3, moving the fixed seat (5) downwards to a position B on the frame datum plane (11); wherein, the distance between the A position and the B position is L; rotating the inside micrometer (2), controlling the end surface of the measuring end (3) of the inside micrometer (2) to align with a cross line in a lens of the theodolite (1), and reading a reading b1 on the inside micrometer (2); the perpendicularity of the frame (8) is
7. Method for measuring the perpendicularity of a rolling stand according to claim 6, wherein in step S3, the distance L between the points A and B is greater than 1000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011371454.1A CN112577399A (en) | 2020-11-30 | 2020-11-30 | Rolling mill stand verticality measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011371454.1A CN112577399A (en) | 2020-11-30 | 2020-11-30 | Rolling mill stand verticality measuring device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577399A true CN112577399A (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011371454.1A Pending CN112577399A (en) | 2020-11-30 | 2020-11-30 | Rolling mill stand verticality measuring device and measuring method |
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| Country | Link |
|---|---|
| CN (1) | CN112577399A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB548513A (en) * | 1941-08-25 | 1942-10-13 | Cooke Troughton & Simms Ltd | Improvements in or relating to theodolites and other angle measuring instruments |
| CN102240680A (en) * | 2011-05-06 | 2011-11-16 | 天津二十冶建设有限公司 | Method for adjusting verticality of rolling mill |
| CN107234138A (en) * | 2017-06-30 | 2017-10-10 | 攀钢集团工程技术有限公司 | Mill housing aligning method |
-
2020
- 2020-11-30 CN CN202011371454.1A patent/CN112577399A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB548513A (en) * | 1941-08-25 | 1942-10-13 | Cooke Troughton & Simms Ltd | Improvements in or relating to theodolites and other angle measuring instruments |
| CN102240680A (en) * | 2011-05-06 | 2011-11-16 | 天津二十冶建设有限公司 | Method for adjusting verticality of rolling mill |
| CN107234138A (en) * | 2017-06-30 | 2017-10-10 | 攀钢集团工程技术有限公司 | Mill housing aligning method |
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Application publication date: 20210330 |