CN114719790A - Method for adjusting horizontal straightness of split equipment by using laser tracker - Google Patents
Method for adjusting horizontal straightness of split equipment by using laser tracker Download PDFInfo
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- 238000005259 measurement Methods 0.000 claims abstract description 25
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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
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
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Abstract
The invention discloses a method for adjusting the horizontal straightness of split equipment by using a laser tracker, which comprises the following steps: carrying out point taking measurement on the split equipment to obtain position data of a plurality of measuring points corresponding to the split equipment; fitting a datum line by using any two measuring points corresponding to the split equipment; establishing a coordinate system based on any measuring point, reference line and ground horizontal plane corresponding to the split equipment; reading coordinate values of other measuring points corresponding to the split equipment under the coordinate system; and a plurality of adjusting points are arranged on the split equipment, and the positions of the split equipment are adjusted by using the adjusting points, so that the straightness deviation values of the coordinate values of other measuring points corresponding to the split equipment meet the requirement. The invention does not need other auxiliary measuring tools, has high measuring precision and accurate and reliable equipment adjustment.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a method for adjusting the horizontal straightness of split equipment by using a laser tracker.
Background
At present, the straightness of split equipment is mainly measured by pulling a steel wire, and is influenced by the bending of the steel wire, the technical level of workers and the like, so that the adjustment requirement of precision equipment is difficult to meet.
The existing straightness measuring method of split equipment comprises the following steps:
(1) chinese patent CN202110741254.9 discloses a method for rapidly evaluating straightness in any direction by applying maximum entity requirements, which comprises the steps of firstly obtaining a measurement part measuring point set, establishing an analysis matrix, carrying out rank analysis on the analysis matrix and an amplification matrix thereof, carrying out rank comparison, and determining an optimizing direction; calculating motion vectors of the measuring points and the boundary; solving a new key point according to the pursuit problem, and updating the measuring point state set element; and optimizing, solving the actual size of the part at the moment, comparing the actual size with the maximum actual size of the entity, and judging the qualification of the straightness error in any direction based on the maximum entity requirement. The method has the problems of complicated operation steps and complicated technical means.
(2) Chinese patent CN202111040697.1 discloses a compensation adjustment method for straightness of a numerical control machine tool, which comprises the steps of building a parametric analysis model of the machine tool, carrying out multi-working-condition finite element analysis on the parametric analysis model of the machine tool in consideration of pose change, extracting key index response values of structural members when different design variables are taken, and fitting a deformation curve; and calculating an inverse deformation curve according to the deformation curve, mapping the inverse deformation curve in an original structural part machining program to generate a structural part compensation machining program, and performing inverse deformation machining on the structural part according to the compensation machining program so as to realize the straightness adjustment of the machine tool structural part. This method also has problems that the operation steps are complicated and the technical means are also complicated.
Disclosure of Invention
In view of the above, the invention provides a method for adjusting horizontal straightness of split equipment by using a laser tracker, which is used for straightness measurement of the split equipment, does not need other auxiliary measuring tools, and is high in measurement precision and accurate and reliable in equipment adjustment.
The invention provides a method for adjusting horizontal straightness of split equipment by using a laser tracker, which comprises the following steps: carrying out point taking measurement on the split equipment to obtain position data of a plurality of measuring points corresponding to the split equipment; fitting a datum line by using any two measuring points corresponding to the split equipment; establishing a coordinate system based on any measuring point, reference line and ground horizontal plane corresponding to the split equipment; reading coordinate values of other measuring points corresponding to the split equipment under the coordinate system; and a plurality of adjusting points are arranged on the split equipment, and the positions of the split equipment are adjusted by using the adjusting points, so that the straightness deviation values of the coordinate values of other measuring points corresponding to the split equipment meet the requirement.
Further, the split device comprises a first device and a second device, and the first device and the second device respectively comprise a first side and a second side which are oppositely arranged and a third side and a fourth side which are oppositely arranged.
Further, the step of performing point taking measurement on the split device includes: erecting a laser tracker, and leveling and calibrating the laser tracker; measuring points are selected on the first side and the second side of the first equipment and the second equipment respectively, and the measuring points on the first side and the second side of the first equipment and the second equipment are projected onto the ground horizontal plane to obtain a first measuring point and a second measuring point corresponding to the first side of the first equipment and a third measuring point and a fourth measuring point corresponding to the first side and the second side of the second equipment; and respectively measuring the position data of the first measuring point, the second measuring point, the third measuring point and the fourth measuring point by adopting a laser tracker.
Further, the fitting method of the reference line comprises the following steps: and fitting a datum line by using the position data of the first measuring point corresponding to the first side of the first equipment and the position data of the fourth measuring point corresponding to the second side of the second equipment.
Further, the method for establishing the coordinate system comprises the following steps: selecting a first measuring point corresponding to the first side of the first equipment or a fourth measuring point corresponding to the second side of the second equipment as a first element, selecting a reference line as a second element, and selecting a ground horizontal plane as a third element; and constructing a coordinate system based on the first measuring point corresponding to the first side of the first equipment or the fourth measuring point corresponding to the second side of the second equipment, the datum line and the ground horizontal plane.
Further, Y coordinate values Y1 and Y2 of a second measuring point corresponding to the second side of the first equipment and a third measuring point corresponding to the first side of the second equipment are read under the coordinate system.
Further, a first adjustment point is disposed on a third side of the first device, a second adjustment point is disposed on a third side of the second device, a third adjustment point is disposed on a fourth side of the first device, and a fourth adjustment point is disposed on a fourth side of the second device, respectively.
Further, the first adjusting point and the second adjusting point are arranged oppositely, and the third adjusting point and the fourth adjusting point are arranged oppositely.
Further, the step of adjusting the position of the split device by using the plurality of adjustment points to enable the linearity deviation value of the coordinate values of other measurement points corresponding to the split device to meet the requirement includes: and adjusting the positions of the first equipment and the second equipment through the first adjusting point, the second adjusting point, the third adjusting point and the fourth adjusting point until the Y1 and Y2 of the second measuring point corresponding to the second side of the first equipment and the third measuring point corresponding to the first side of the second equipment are adjusted to be zero, so that the deviation value of the Y1 and Y2 coordinates meets the requirement.
Firstly, respectively carrying out point taking measurement on two opposite sides of the split equipment through the laser tracker, projecting the measurement points to the ground horizontal plane to obtain projected measurement points, and fitting a datum line by using position data of the measurement points; establishing a coordinate system based on the position data of the reference line and the measuring point; reading the Y coordinate value of the lower measuring point of the coordinate system; and adjusting the Y values of the measuring points to zero through the adjusting points, and repeatedly carrying out measurement and adjustment for multiple times until the Y value deviation values of the two measuring points on the split equipment meet the requirements, thereby realizing the adjustment of the horizontal straightness of the split equipment. The method does not need other auxiliary measuring tools, and has high measuring precision and accurate and reliable equipment adjustment.
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For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
FIG. 1 is a flow chart of a method for adjusting horizontal straightness of equipment by using a laser tracker according to the present invention;
fig. 2 is a schematic structural view of the split apparatus.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 is a flow chart of a method for adjusting the horizontal straightness of equipment by using a laser tracker. Firstly, respectively carrying out point taking measurement on two opposite sides of split equipment through the laser tracker, projecting measurement points to the ground horizontal plane to obtain projected measurement points, and fitting a datum line by using position data of the measurement points; establishing a coordinate system based on the position data of the reference line and the measuring point; reading a Y coordinate value of a measuring point of the split equipment under the coordinate system; and adjusting the Y value of the measuring point of the split equipment through the adjusting point.
The method for adjusting the horizontal straightness of the split device by using the laser tracker according to the present embodiment will be described in detail by taking the split device including the first device and the second device as an example.
Referring to fig. 1, the method for adjusting the horizontal straightness of the split device by using the laser tracker comprises the following steps:
and S100, respectively carrying out point taking measurement on the first equipment and the second equipment by adopting a laser tracker to obtain position data of a plurality of measuring points corresponding to the first equipment and the second equipment.
Fig. 2 is a schematic structural view of the split apparatus. As shown in fig. 2, the split device includes a first device 1 and a second device 2, and the first device 1 and the second device 2 include a first side and a second side disposed opposite to each other, and a third side and a fourth side disposed opposite to each other, respectively.
In this embodiment, the specific implementation manner of step S100 is as follows:
and S101, erecting a laser tracker, and leveling and calibrating the laser tracker.
S102, measuring points are selected on the first side and the second side of the first device 1 and the second device 3 respectively, the measuring points on the first side and the second side of the first device 1 and the second device 3 are projected onto the ground level 3, and a first measuring point 4 corresponding to the first side of the first device 1, a second measuring point 5 corresponding to the second side of the first device 1, a third measuring point 6 corresponding to the first side of the second device 2 and a fourth measuring point 7 corresponding to the second side of the second device 2 are obtained. The first measuring point 4 and the second measuring point 5 are arranged oppositely, and the third measuring point 6 and the fourth measuring point 7 are arranged oppositely.
And S103, respectively measuring the position data of the first measuring point 4, the second measuring point 5, the third measuring point 6 and the fourth measuring point 7 by adopting a laser tracker.
And S200, fitting a datum line by using the position data of a measuring point corresponding to the first equipment 1 and the second equipment 3.
In the present exemplary embodiment, a reference line 10 is fitted using the position data of the first measuring point 4 on the first side of the first device 1 and the position data of the fourth measuring point 7 on the second side of the second device 2.
And S300, establishing a coordinate system based on a measuring point, a reference line and a ground horizontal plane corresponding to the first equipment 1 or the second equipment 3.
In the embodiment, the coordinate system is established to comprise three elements, wherein the first element is a first measuring point 4 corresponding to the first side of the first device 1 or a fourth measuring point 7 corresponding to the second side of the second device 3, the second element is a reference line 10, and the third element is a ground horizontal plane 3. A coordinate system is constructed on the basis of the first measuring point 4 on the first device 1 or the fourth measuring point 7 on the second device 3, the reference line 10 and the ground level 3.
And S400, reading coordinate values of other measuring points corresponding to the first equipment 1 and the second equipment 3 in the coordinate system.
Based on the coordinate system established in step S300, the Y coordinate values of the second measuring point 5 corresponding to the second side of the first device 1 and the third measuring point 6 corresponding to the first side of the second device 3 are read under the coordinate system as Y1 and Y2, respectively.
S500, respectively arranging a plurality of adjusting points on the first equipment and the second equipment, and respectively adjusting and zeroing Y values in coordinate values of other measuring points corresponding to the first equipment and the second equipment through the plurality of adjusting points.
A first set point 8 is arranged on a third side of the first device 1, a second set point 9 is arranged on a third side of the second device 2, a third set point 11 is arranged on a fourth side of the first device 1 and a fourth set point 12 is arranged on a fourth side of the second device 2, respectively. Wherein, the first adjusting point 8 and the second adjusting point 11 are arranged oppositely, and the third adjusting point 11 and the fourth adjusting point 12 are arranged oppositely.
The positions of the first device 1 and the second device 2 are adjusted through the first adjusting point 8, the second adjusting point 9, the third adjusting point 11 and the fourth adjusting point 12, and Y1 and Y2 of the second measuring point 5 corresponding to the second side of the first device 1 and the third measuring point 6 corresponding to the first side of the second device 3 are adjusted to be zero respectively.
And S600, repeating the steps, measuring and adjusting for multiple times until the deviation values of Y1 and Y2 meet the requirements, and adjusting the horizontal straightness of the split equipment.
Firstly, respectively carrying out point taking measurement on two opposite sides of the split equipment through the laser tracker, projecting the measurement points to the ground horizontal plane to obtain projected measurement points, and fitting a datum line by using position data of the measurement points; establishing a coordinate system based on the position data of the reference line and the measuring point; reading the Y coordinate value of the lower measuring point of the coordinate system; and adjusting the Y values of the measuring points to zero through the adjusting points, and repeatedly carrying out measurement and adjustment for multiple times until the Y value deviation values of the two measuring points on the split equipment meet the requirements, thereby realizing the adjustment of the horizontal straightness of the split equipment. The method does not need other auxiliary measuring tools, and has high measuring precision and accurate and reliable equipment adjustment.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for adjusting horizontal straightness of split equipment by using a laser tracker is characterized by comprising the following steps:
carrying out point taking measurement on the split equipment to obtain position data of a plurality of measuring points corresponding to the split equipment;
fitting a datum line by using any two measuring points corresponding to the split equipment;
establishing a coordinate system based on any measuring point, reference line and ground horizontal plane corresponding to the split equipment;
reading coordinate values of other measuring points corresponding to the split equipment under the coordinate system;
and a plurality of adjusting points are arranged on the split equipment, and the positions of the split equipment are adjusted by using the adjusting points, so that the straightness deviation values of the coordinate values of other measuring points corresponding to the split equipment meet the requirement.
2. The method of adjusting horizontal straightness using a laser tracker according to claim 1, wherein the split device comprises a first device and a second device comprising first and second oppositely disposed sides and third and fourth oppositely disposed sides, respectively.
3. The method for adjusting the horizontal straightness of the split equipment using the laser tracker of claim 2, wherein the step of taking the point measurement of the split equipment comprises:
erecting a laser tracker, and leveling and calibrating the laser tracker;
measuring points are selected on the first side and the second side of the first equipment and the second equipment respectively, and the measuring points on the first side and the second side of the first equipment and the second equipment are projected onto the ground horizontal plane to obtain a first measuring point and a second measuring point corresponding to the first side of the first equipment and a third measuring point and a fourth measuring point corresponding to the first side and the second side of the second equipment;
and respectively measuring the position data of the first measuring point, the second measuring point, the third measuring point and the fourth measuring point by adopting a laser tracker.
4. The method for adjusting the horizontal straightness of the split equipment using the laser tracker according to claim 3, wherein the method for fitting the reference line comprises:
and fitting a datum line by using the position data of the first measuring point corresponding to the first side of the first equipment and the position data of the fourth measuring point corresponding to the second side of the second equipment.
5. The method for adjusting the horizontal straightness of the split equipment by using the laser tracker according to claim 3, wherein the coordinate system is established by:
selecting a first measuring point corresponding to the first side of the first equipment or a fourth measuring point corresponding to the second side of the second equipment as a first element, selecting a reference line as a second element, and selecting a ground horizontal plane as a third element;
and constructing a coordinate system based on the first measuring point corresponding to the first side of the first equipment or the fourth measuring point corresponding to the second side of the second equipment, the datum line and the ground horizontal plane.
6. The method for adjusting the horizontal straightness of the split device by using the laser tracker as claimed in claim 5, wherein Y-coordinate values Y1 and Y2 of a second measuring point corresponding to the second side of the first device and a third measuring point corresponding to the first side of the second device are read under the coordinate system.
7. The method for adjusting the horizontal straightness of the split device using the laser tracker according to claim 6, wherein a first adjustment point is provided on a third side of the first device, a second adjustment point is provided on a third side of the second device, a third adjustment point is provided on a fourth side of the first device, and a fourth adjustment point is provided on a fourth side of the second device, respectively.
8. The method for adjusting the horizontal straightness of a split device using a laser tracker according to claim 7, wherein the first adjustment point and the second adjustment point are oppositely arranged, and the third adjustment point and the fourth adjustment point are oppositely arranged.
9. The method for adjusting the horizontal straightness of the split equipment by using the laser tracker according to claim 7, wherein the step of adjusting the position of the split equipment by using a plurality of adjustment points so that the straightness deviation value of the coordinate values of other measurement points corresponding to the split equipment meets the requirement comprises the following steps:
and adjusting the positions of the first equipment and the second equipment through the first adjusting point, the second adjusting point, the third adjusting point and the fourth adjusting point until the Y1 and Y2 of the second measuring point corresponding to the second side of the first equipment and the third measuring point corresponding to the first side of the second equipment are adjusted to be zero, so that the deviation value of the Y1 and Y2 coordinates meets the requirement.
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