CN114858042A - Automatic device and method for checking accuracy of plumb line system - Google Patents
Automatic device and method for checking accuracy of plumb line system Download PDFInfo
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- CN114858042A CN114858042A CN202210380053.5A CN202210380053A CN114858042A CN 114858042 A CN114858042 A CN 114858042A CN 202210380053 A CN202210380053 A CN 202210380053A CN 114858042 A CN114858042 A CN 114858042A
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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
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
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- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses an automatic device and a method for calibrating the accuracy of a plumb line system, wherein the automatic device comprises an operation bedplate, the operation bedplate is arranged on a plumb line coordinatograph, a guide groove is formed in the operation bedplate, a sliding block is arranged in the guide groove, a motor I is arranged on the sliding block, a strip measuring rod is arranged at the end part of the motor I, a motor II is arranged at the lower part of the strip measuring rod, a laser is arranged at the bottom of the motor II, an H-shaped contact line mechanism is arranged at the end part of the motor II, and the H-shaped contact line mechanism, the motor I and the motor II work in cooperation, so that the accurate displacement of a plumb line is given in the calibration process. According to the invention, the operation bedplate can be horizontally and stably placed at any position, a laser can be adopted for accurate orientation, the consistency of the moving direction and the vertical line coordinatograph is ensured, the positioning error is eliminated by adopting a linear motor, the zero disturbance of the initial value of the vertical line is ensured by adopting an H-shaped contact line mechanism, the whole structure is compact and small, the applicability is stronger, the adjustment and the control are easy, the working process is simple and clear, the working efficiency is improved, and the automatic calibration of the accuracy of the vertical line system is realized.
Description
Technical Field
The invention belongs to the technical field of dam safety monitoring system test evaluation, and particularly relates to an automatic device and method for checking accuracy of a vertical line system.
Background
The principle of the vertical line system as the most accurate and effective means for monitoring the horizontal deformation is that a vertical steel wire is used as a reference, and the displacement of a monitoring point relative to the steel wire is measured by a vertical line coordinate instrument of a telemetering sensor, so that the vertical line system is also the most main monitoring facility for the horizontal displacement and deflection of hydraulic buildings such as a hydroelectric station dam and the like, and plays an important role in the process of mastering the operation state of a dam body structure and finding the risk and hidden danger of the hydraulic buildings. However, in the actual operation process, due to factors such as artificial disturbance, environmental factor change, parameter setting error, monitoring equipment aging, sensor damage and the like, the vertical line system often causes the conditions of low accuracy of the monitoring result, data distortion and the like of the vertical line system, and in order to ensure the reliability of the final monitoring result, in the dam operation maintenance and regular inspection process, the accuracy test and evaluation are required to be regularly performed on the vertical line system in the hydropower station dam safety monitoring system, so that the observation result can truly and reliably reflect the actual operation behavior of the dam.
At present, a telemetering perpendicular coordinatograph of a perpendicular system mainly comprises a capacitance type and a photoelectric type CCD, and both adopt non-contact automatic displacement measurement equipment to measure displacement values of a perpendicular line in two directions of a plane X, Y. The requirements are defined by the latest specifications, the accuracy of the telemetering vertical line coordinatograph in the vertical line system needs to be tested regularly, and when the accuracy of the measured value is reduced and the requirements of dam safety monitoring cannot be met, maintenance, verification and reconstruction should be carried out in time. At present, in the accuracy test of the plumb line system, most of the available plumb line calibration frames and standard gauge blocks or dial gauges with certain specification and size are adopted, the standard gauge blocks or the dial gauges are combined by a magnetic gauge stand and then placed on a steel frame for fixing the plumb line coordinatograph, the plumb line is moved for a certain distance along the upstream and downstream (X direction) or left and right bank (Y direction) by the standard gauge blocks or the dial gauges, and then the absolute value of the difference between the display distance of the plumb line coordinatograph or the distance in the automatic acquisition system and the actual moving distance is compared to judge the accuracy of the plumb line system. However, the above-mentioned testing devices and methods adopted in the accuracy test of the plumb line system in the prior art have the following defects and shortcomings:
firstly, in the prior art, a plumb line calibration frame is combined with a standard gauge block or a dial indicator, and a magnetic gauge stand is assembled and fixed on a steel frame of a plumb line coordinator, so that the assembly and fixing mode is complex and has poor stability, overall sliding is easily caused in the test process, abnormal displacement is caused by touching a plumb line body, in addition, extreme inaccuracy of a given displacement value is directly caused, the requirements on operating personnel and field conditions are high, and large errors are easily generated in the test process; secondly, in the testing process, the direction of the given displacement is adjusted only by field staff through visual inspection, and has larger deviation with the actual directions of an X axis and a Y axis of the telemetering perpendicular line coordinatograph, so that accurate orientation cannot be realized, and the plane where two axial directions of the given displacement are located cannot be ensured to be parallel to the plane formed by two directions calibrated by the telemetering perpendicular line coordinatograph, so that certain system errors are inevitably brought; thirdly, the accuracy test of the perpendicular line system needs to successively verify the accuracy of measured values in four directions of two coordinate axes of the left and right bank directions and the upstream and downstream directions, and when the measured coordinate axes are converted, the prior art needs to select a proper position to re-assemble and lay equipment such as a perpendicular line calibration frame and a dial indicator through a magnetic gauge stand, which is troublesome and labor-consuming and has low efficiency; in addition, part of the field conditions can only arrange the testing device in one direction, and the other direction cannot be tested; fourthly, the existing device is easily affected by the field arrangement condition of the telemetering plumb line coordinatograph and the fixed steel frame thereof, when the space between the steel frame and the plumb line coordinatograph is limited, the testing device cannot be arranged, and the field test is inconvenient to carry out, under the condition, the testing device can only be arranged at the top of the fixed steel frame or other far positions, so that a certain distance exists between a given displacement point and a monitoring point of the telemetering plumb line coordinatograph, and a linear error is caused; fifth, there is no uniform flow in the current accuracy testing method for the perpendicular line system, and most of the evaluation methods simply adopt the difference between the data collected by the automatic system and the site given displacement for comparison and evaluation, and under the condition of large absolute value of deviation, the defects existing in the telemetering perpendicular line coordinatograph, the collection module or the automatic system cannot be distinguished.
The Chinese patent, publication No. CN 203672345U, discloses a general calibration frame for accuracy field test of a perpendicular coordinatograph of a hydropower station, the device only improves the applicability of a fixed mounting base, and integrates the calibration frame with a displacement measuring device, thereby reducing the error caused by the independent fixation of the calibration frame and a dial indicator, not considering the abnormal error problem caused by various factors such as disturbance of a perpendicular line body, the accuracy of given displacement, the synchronism of a moving direction, displacement occurrence point deviation and the like, and also not considering how to improve the conversion efficiency of measurement coordinate axes, standardizing the measurement method and the like.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide an automatic device and method for checking the accuracy of a plumb line system.
In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:
the utility model provides an automation equipment for plumb line system accuracy check-up, including the operation platen that can carry out horizontal leveling, the detachable setting of operation platen is on perpendicular line coordinatograph, be provided with a plurality of guide way on the operation platen, be provided with along its reciprocating sliding's slider in the guide way, slider upper portion is provided with motor I, I tip of motor is provided with the strip measuring staff that can vertical reciprocating motion, strip measuring staff lower part is provided with motor II, II bottoms of motor set up the laser instrument, be used for sending the laser that the plumb line system crossed the line hole, II tip of motor are provided with H type touch line mechanism, one tip that H type touch line mechanism kept away from motor II is provided with plumb line system and crosses the line hole, H type touch line mechanism and motor I and II collaborative operations of motor realize giving accurate displacement to the plumb line in the check-up process in suitable position department.
Furthermore, the operation bedplate is arranged on the vertical line coordinatograph through a triangular base at the bottom of the operation bedplate, a plurality of foot spirals are uniformly arranged at the bottom of the operation bedplate, a circular level is arranged at the top of the operation bedplate, and N linear sliding rails are arranged on the operation bedplate to form N-1 guide grooves.
Furthermore, the triangular base is provided with a bolt hole, the operation bedplate is fixed on the triangular base through a bottom hole bolt penetrating through the bolt hole, a magnetic base is arranged in the bottom of the triangular base and connected with a handle switch, and the adsorption and separation of the operation bedplate and the vertical line coordinatograph are realized by rotating the handle switch.
Further, N is 3, the operation platen sets up three linear slide rails inwards at the equidistance from the left side edge, survey slide rail, middle slide rail and outside slide rail in proper order, survey slide rail and outside slide rail equal height and both are less than the height of middle slide rail, survey slide rail and middle slide rail formation inboard guide way, middle slide rail and outside slide rail formation outside guide way, the bottom that the slider is in the inboard guide way sets up the magnetism gauge stand, the bottom that the slider is in the outside guide way is hollow structure.
Furthermore, the positioning accuracy of the motor I and the motor II is higher than +/-10 mu m, the total stroke is 200-300mm, the linear moving speed of the motor is 2-5mm/s, and the motor I and the motor II are respectively connected with the control module and controlled by the control module.
Furthermore, the motor I is an X-direction linear motor, an X-direction linear motor stator of the X-direction linear motor is fixed on the upper portion of the sliding block, a cantilever sliding groove is formed in the end portion, close to the inner side end, of an X-direction linear motor rotor of the X-direction linear motor, and the strip-shaped measuring rod vertically reciprocates in the cantilever sliding groove.
Further, motor II is Y to linear electric motor, Y sets up the laser instrument to linear electric motor stator bottom to linear electric motor's Y, the laser instrument is directional laser instrument, Y sets up H type touch line mechanism to linear electric motor's Y to linear electric motor active cell tip, and electrically conductive copper sheet is arranged to H type touch line mechanism inboard, and with motor I and Y to linear electric motor cooperation work, electrically conductive copper sheet links to each other with control module, after H type touch line mechanism and plumb line contact circuit intercommunication to control module signals, through the motor stop motion of control module control corresponding direction.
Furthermore, the strip measuring rod is provided with a plurality of rows of positioning holes from top to bottom, two positioning holes are arranged in each row, two bolt through holes are arranged on the cantilever sliding groove, locking nuts are arranged, the positioning holes are matched with the bolt through holes, and the locking nuts penetrate through the bolt through holes and the positioning holes in the strip measuring rod from the outer side of the cantilever sliding groove to fix the strip measuring rod at a proper height.
Further, the laser instrument sets up and is close to H type touch line mechanism one side middle part at II fixed positions of motor, and the tip sets up laser switch, and the contained angle between laser axis and the horizontal plane is 30, and the laser instrument sends light and can reach perpendicular line system and cross line hole edge.
The invention also discloses a calibration method of the automation device for calibrating the accuracy of the perpendicular line system, which comprises the following steps:
step 1) selecting a proper position, placing a triangular base and an operation bedplate thereon on a vertical line coordinatograph, adjusting foot screws at the bottom of the operation bedplate, wherein at least three foot screws are in a stressed state, and adjusting a circular level so as to keep the operation bedplate in a horizontal stable state;
step 2) clamping the sliding block in the guide groove, adjusting the height of the strip measuring rod to change the height of the H-shaped contact line mechanism, fastening when the H-shaped contact line mechanism is adjusted to a position slightly higher than the height of the wire passing hole, and controlling X, Y the linear motor to enable the H-shaped contact line mechanism to be close to the edge of the wire passing hole through the control module;
step 3) turning on a laser switch, enabling a laser to emit laser rays to the upper edge of the wire passing hole, operating the X-direction linear motor to move forwards or backwards, observing whether the laser rays deviate on the upper edge of the wire passing hole, and if so, adjusting the position of the operation bedplate until the laser rays are kept on the upper edge of the wire passing hole and do not deviate in the process of moving forwards or backwards of the X-direction linear motor, so that the displacement generating direction is consistent with the actual directions of the X axis and the Y axis of the vertical line coordinate instrument;
step 4) adjusting the position of the H-shaped contact line mechanism to the linear motor by controlling X, Y to enable the vertical line to be located in one of two inner groove-shaped areas of the H-shaped contact line mechanism;
step 5) carrying out upstream and downstream direction displacement accuracy verification on a perpendicular line system:
the upstream direction and the downstream direction are Y directions and the downstream direction is positive, when the H-shaped contact line mechanism contacts a vertical line, the motor stops moving, an initial value of Y-direction displacement is tested, an average value is obtained, then the corresponding displacement of the vertical line is accurately given to the linear motor according to a specified stroke through control X, Y, the measured value of the change of the Y-direction displacement is tested, the average value is obtained, and finally the change B of the measured displacement of the Y-direction of the vertical line coordinatograph is calculated y (ii) a Repeating the step to check the accuracy of the displacement in the upstream direction;
step 6) carrying out the calibration of the displacement accuracy of the left bank and the right bank of the plumb line system:
the left bank and the right bank are in the X direction, the right bank is in the positive direction, the vertical line is placed in one of two groove type areas of the H-shaped contact line mechanism, the X-direction linear motor is controlled to move after the vertical line is in a free state and is stabilized, the action is performed according to the step 5), when the X-direction linear motor stops moving, the initial value of X-direction displacement is tested and the average value is obtained, then the corresponding displacement of the vertical line is accurately given to the linear motor according to the appointed travel by controlling X, Y, the measured value of the change of the X-direction displacement is tested and the average value is obtained, and finally the change B of the X-direction measured displacement of the vertical line coordinatograph is calculated x (ii) a Returning the H-shaped wire touching mechanism to the original position, operating the X-direction linear motor to place the vertical wire outside the H-shaped wire touching mechanism, combining the X-direction linear motor and the Y-direction linear motor to place the vertical wire in another groove-shaped area of the H-shaped wire touching mechanism, repeating the steps in opposite directions after the vertical wire is stabilized, and checking the displacement accuracy of the left bank and the right bank in the other direction;
step 7) respectively calculating X, Y the absolute value | delta of the difference between the measured displacement variation and the standard displacement according to the following formula x |、|δ y |：
Then, will | δ x |、|δ y I is compared with the limit difference mu required by the specification, when is delta x | or | δ y |>When mu is reached, the accuracy of the measuring point of the perpendicular line system does not meet the requirement, and when the value is delta x | and | δ y When all | is less than or equal to mu, the accuracy of the measuring point of the plumb line system meets the requirement.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention discloses an automatic device for checking the accuracy of a plumb line system, which has the advantages that a magnetic triangular base is arranged and is matched with an angle screw to ensure that an operation bedplate is in a horizontal state and is stably placed; the nested structure of the guide groove and the slide block is arranged, so that the device can flexibly move in a measuring range and overcome the defect of poor stability of the whole measuring device; the positioning laser is adopted for accurate orientation, so that the consistency of the moving direction and the vertical line coordinatograph is ensured; the characteristics of low-speed reciprocating motion and high positioning precision of the linear motor are utilized, and various direct or indirect positioning errors caused by human factors or superposition of measuring equipment in the displacement generation process are eliminated; the light special wire touching mechanism with the conductive copper sheet is arranged, so that zero disturbance of an initial value during a perpendicular line test is realized; the device has the advantages that the device is compact and small in overall structure, can be placed on a plumb line coordinator or a fixed support to work, is not limited by an operation space, greatly improves the applicability, has good follow-up property due to the matching of a line touching mechanism, positioning laser and a linear motor, is easy to adjust and control, and realizes the automatic verification of the accuracy of a plumb line system;
2) the invention also discloses a calibration method of the automatic device for calibrating the accuracy of the plumb line system, the method realizes the accuracy of displacement generation through the operation bedplate which can be horizontally leveled and the positioning laser, the operation process ensures the moving range and the measuring range of the calibration device, realizes unidirectional displacement and accurate orientation, the control logic of the linear motor and the contact line mechanism is clear, the contact line stop prompt prevents the disturbance of manual operation to the plumb line, and the reliability of the calibration result is ensured; the touch wire mechanism is controlled through the operation panel on the spot, the accuracy check in four directions can be completed at one time, the control logic is clear, the process is simple and clear, a check device is not required to be arranged again, the working efficiency is greatly improved, the displacement calculation and the standard displacement comparison are carried out by adopting the self-display reading on the external small instrument or the vertical line coordinatograph, and the misjudgment on the accuracy of the vertical line coordinatograph caused by the defects of the acquisition module or the automatic system is avoided; the invention can be widely applied to safety monitoring of the hydropower station dam, and can also be applied to deformation measurement of buildings such as high-rise buildings, underground caverns, nuclear power station containment vessels, bridges and the like.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic elevational cross-sectional view of the present invention;
FIG. 4 is a schematic left side cross-sectional view of the present invention;
FIG. 5 is a functional block diagram of the present invention;
FIG. 6 is a flow chart of the present invention;
the device comprises a 1-triangular base, a 101-magnetic base, a 102-bolt hole, a 103-bottom hole bolt, a 104-handle switch, a 2-foot screw, a 3-circular level gauge, a 4-operation bedplate, a 5-linear slide rail, a 501-inner measuring slide rail, a 502-middle slide rail, a 503-outer slide rail, a 6-guide groove, a 601-inner guide groove, a 602-outer guide groove, a 7-slide block, an 8-rotating handle, a 9-magnetic gauge stand, a 10-X-direction linear motor, a 1001-X-direction linear motor stator, a 1002-X-direction linear motor rotor, an 11-Y-direction linear motor, a 1101-Y-direction linear motor stator, a 1102-Y-direction linear motor rotor, a 12-cantilever slide groove, a 13-strip measuring rod, a 14-positioning hole, a positioning rod, a positioning, 15-locking nut, 16-directional laser, 17-laser switch, 18-H type contact line mechanism, 19-conductive copper sheet, 20-control module, 21-operation panel, 22-perpendicular line coordinate instrument, 24-perpendicular line and 25-line-passing hole.
Detailed Description
The present invention is described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the scope of the present invention can be clearly and clearly defined.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
As shown in fig. 1-6, an automatic device for checking the accuracy of a plumb line system comprises a triangular base 1, a work table 4, linear slide rails 5, a guide groove 6, a slide block 7, an X-direction linear motor 10, a Y-direction linear motor 11, a cantilever slide groove 12, a strip measuring rod 13, a lock nut 15, a directional laser 16, an H-shaped contact line mechanism 18, a conductive copper sheet 19, a control module 20, an operation panel 21, a plumb line 24 and a wire passing hole 25, wherein the automatic device takes the triangular base 1 and the work table 4 as a basic structure, the work table 4 is placed on a plumb line coordinatograph 22 or a fixed bracket thereof through the triangular base 1 at the bottom, eight foot screws 2 are uniformly arranged at the bottom of the work table 4, a circular level 3 is arranged at the top of the work table 4, the work table 4 is adjusted to a horizontal state and fixed through the foot screws 2 after the placement position is selected on site, the work table 4 is provided with three linear slide rails inwards at equal intervals from the left side edge, an inner side slide rail 501, a middle slide rail 502 and an outer side slide rail 503 are arranged in sequence to form a guide groove 6, a slide block 7 corresponding to the guide groove is arranged on the guide groove 6 in a nesting mode, an X-direction linear motor stator 1001 of an X-direction linear motor 10 is fixed on the upper portion of the slide block 7, the X-direction linear motor 10 adopts a T-shaped groove nesting slide rail structure, an X-direction linear motor rotor 1002 is of a rectangular groove nesting structure, a cantilever slide groove 12 is arranged at the inner side end portion of the X-direction linear motor rotor 1002, a rectangular hollow groove is arranged in the middle of the cantilever slide groove 12 and used for enabling a strip-shaped measuring rod 13 to move up and down, a Y-direction linear motor 11 is fixed at the lower end of the strip-shaped measuring rod 13, the Y-direction linear motor 11 adopts a rectangular nesting structure, a directional laser 16 is arranged at the bottom of a Y-direction linear motor stator 1101 and can emit light to a vertical line system line passing hole 25, an H-shaped contact line mechanism 18 is arranged at one end portion of the Y-direction linear motor rotor 1102, the inner side of the H-shaped contact line mechanism 18 is provided with a conductive copper sheet 19 which is matched with the X-direction linear motor 10 and the Y-direction linear motor 11 to work, accurate displacement is given to a vertical line at a proper position in the checking process, and an operation panel 21 of the whole automatic device is arranged at the outer end of the sliding block 7.
The triangular base 1 is provided with a magnetic base 101 and a bolt hole 102, and a bottom hole bolt 103 is inserted into the bolt hole 102 to connect and fix the operation platen 4 to the triangular base 1 and then to place on the vertical coordinatograph 22 or its fixing bracket. The magnetic base 101 is arranged at the bottom of the triangular base 1 in a built-in mode, the magnetic base 101 is adsorbed and separated from the perpendicular coordinatograph 22 or the fixed support through the rotating handle switch 104, and the magnetic base 101 can be made of an existing magnetic gauge stand product.
The inner slide rail 501 and the outer slide rail 503 have the same height, both are 3cm, the middle slide rail 502 has the height of 8cm, and the three slide rails form an inner guide groove 601 and an outer guide groove 602 on the operation bedplate 4.
The strip measuring rod 13 is uniformly provided with six rows of positioning holes 14 from top to bottom, wherein each row is provided with two positioning holes, and the distance between every two positioning holes is 8 cm; two bolt through holes are arranged in parallel on the cantilever sliding groove 12 and are provided with locking nuts 15, the positioning holes 14 are matched with the bolt through holes, the locking nuts 15 penetrate through the bolt through holes and the positioning holes 14 on the strip measuring rod 13 from the outer side of the cantilever sliding groove 12 to be locked and fixed, the Y-direction linear motor 11 at the lower end of the strip measuring rod 13 is adjusted to a position slightly higher than the perpendicular line wire passing hole 25 on site, and then the locking nuts 15 are screwed to fix the strip measuring rod 13 at a proper height.
The X-direction linear motor 10 and the Y-direction linear motor 11 both adopt permanent magnet low-speed linear motors, the positioning accuracy is higher than +/-10 mu m, the total stroke is 200-300mm, and the linear moving speed of the motors is set to be 2-5mm/s in the measurement process.
The X-direction linear motor 10 and the Y-direction linear motor 11 are logically provided with a manual mode and an automatic mode, and corresponding buttons are arranged on the operation panel 21, wherein the manual mode comprises a forward mode and a backward mode and is used for adjusting the H-shaped contact line groove 18 to be close to a vertical line to a proper position; setting a direction selection button in the automatic mode: "+" - ", and a trip selection button: 5mm, 10mm, 20mm, 50 mm.
The directional laser 16 is arranged at the middle part of the fixed part of the Y-direction linear motor 11, which is close to the H-shaped contact line mechanism 18, the end part of the directional laser is provided with a laser switch 17, and the included angle of 30 degrees is formed between the laser central axis and the horizontal plane, so that when the Y-direction linear motor 11 is adjusted to a position slightly higher than the position of the line passing hole 25, the light emitted by the directional laser 16 can reach the edge of the line passing hole 25.
The H-shaped contact line mechanism 18 is integrally made of a light insulating material with certain hardness, such as hard plastic, hard rubber, an acrylic board and the like, two circles of narrow conductive copper sheets 19 are respectively arranged around the inner side and the outer side of the H-shaped contact line mechanism 18 and are used as a positive electrode and a negative electrode to be connected with the control module 20, when the H-shaped contact line mechanism 18 is in contact with a vertical line 24, a circuit is connected, a prompt sound is sent out, an instruction is sent out to the control module 20, the linear motor in the corresponding direction stops moving in a manual mode, and the next step of instruction waiting is carried out.
A calibration method of an automatic device for calibrating the accuracy of a plumb line system comprises the following steps:
step 1) selecting a proper position, placing a triangular base 1 on a vertical coordinatograph 22 or a platform of a fixed support, opening a handle switch 104 to fix the triangular base 1, connecting an operation bedplate 4 with the triangular base 1 through a bottom hole bolt 103, adjusting foot screws 2 at the bottom of the operation bedplate 4, wherein at least three foot screws 2 are in a stress state, adjusting air bubbles of a circular level 3 to be in the middle, and keeping the operation bedplate 4 in a horizontal stable state on the vertical coordinatograph 22 or the platform of the fixed support;
step 2) clamping the integral structures of the sliding block 7, the motor and the like in the guide groove 6 between the linear slide rails 5, adjusting the height of the strip measuring rod 13, fixing the H-shaped contact line mechanism 18 by using a lock nut 15 when the H-shaped contact line mechanism 18 moves to a position slightly higher than the height of the wire passing hole 25, selecting a manual mode in the operation panel 21, and controlling X, Y to enable the H-shaped contact line mechanism 18 to be close to the edge of the wire passing hole 25 through the forward and backward keys;
step 3) turning on the laser switch 17, controlling the linear motor to enable the directional laser 16 to emit light to the upper edge of the wire passing hole 25, operating the X-direction linear motor 10 to move forwards or backwards, observing whether the laser light deviates on the upper edge of the wire passing hole 25, loosening the bottom hole bolt 103 if the deviation occurs, integrally rotating the operation bedplate 4 to perform fine adjustment and then continuing observation until the laser light keeps on the upper edge of the wire passing hole 25 and does not deviate in the moving forwards or backwards process of the X-direction linear motor 10, which indicates that the displacement generating direction is consistent with the actual directions of the X axis and the Y axis of the perpendicular line coordinate instrument 22, and then fastening the bottom hole bolt 103 to perform the next operation;
step 4) selecting a manual mode in the operation panel 21, and adjusting the H-shaped antenna mechanism 18 to the linear motor through the forward and backward key control X, Y so that the vertical line 24 is located in one of two inner groove-shaped areas of the H-shaped antenna mechanism 18;
step 5) carrying out upstream and downstream direction displacement accuracy verification on a perpendicular line system:
the upstream direction and the downstream direction are Y directions and positive directions; the manual mode of the Y-direction linear motor 11 is selected on the operation panel 21, the direction is selected to be "+", and when the H-shaped wire touching mechanism 18 touches the vertical line 24, the linear motor automatically stops and gives a prompt sound. At the moment, a small external instrument or a vertical line coordinatograph is adopted to display the reading, and the initial value b of the Y-direction displacement is measured and read five times continuously y1 ～b y5 And calculating the average value B y0 (ii) a Selecting an automatic mode on the operation panel 21, and selecting corresponding stroke A from 5mm, 10mm, 20mm and 50mm according to the test requirements y After the linear motor accurately gives the corresponding displacement of the vertical line 24 according to the designated stroke, the measured value b of the change of the Y-direction displacement is read out five times continuously again y6 ～b y10 Then, the average value B is obtained y1 Calculating the variation B of the displacement measured in the Y direction of the vertical line coordinatograph y ＝B y1 -B y0 ；
Switching to a manual mode on the operation panel 21, retracting the H-shaped wire touching mechanism 18 to the original position, repeating the operation according to the opposite direction (the direction is selected as minus) after the vertical line 24 is stabilized, and checking the displacement accuracy in the upstream direction;
step 6) carrying out the calibration of the displacement accuracy of the left bank and the right bank of the plumb line system:
the left bank and the right bank are in the X direction, and the right bank is positive; after the vertical line 24 is placed in one of the two slot-shaped regions of the H-shaped wire contacting mechanism 18 and is stabilized in a free state, the X-direction linear motor 10 is operated in a manual mode, and the direction is selected as the case may be (when the vertical line is in the right slot-shaped region, "+" is selected to verify the alignment to the right bank, and when the vertical line is in the left slot-shaped region, "+" is selected to select"-" verify displacability to the left bank); according to the step 5), after the X-direction linear motor 10 stops and gives out a prompt tone, firstly measuring the initial value b of the X-direction displacement of the perpendicular line x1 ～b x5 Then, the average value B is obtained x0 Switching automatic mode selection Stroke A x Given the corresponding displacement of the perpendicular line 24, the measured value b after the change of the X-direction displacement is measured x6 ～b x10 Calculating a mean value B x1 And the X-direction measured displacement variation B x ＝B x1 -B x0 ；
The H-touch mechanism 18 is retracted to the home position, the X-direction linear motor 10 is operated in the manual mode to place the vertical line outside the H-touch mechanism, and the X-direction and Y-direction linear motors are combined to place the vertical line in another slot-shaped region of the H-touch mechanism 18. After the perpendicular line 24 is stabilized, repeating the operation in the opposite direction, and checking the displacement accuracy of the left bank and the right bank in the other direction;
step 7) respectively calculating X, Y difference absolute values | delta of the measured displacement variation and the standard displacement according to the following formula x |、|δ y |：
And compared with the limit difference mu required by the specification when the delta is x | or | δ y |>When mu is reached, the accuracy of the measuring point of the perpendicular line system does not meet the requirement, and when the value is delta x | and | δ y When all | is less than or equal to mu, the accuracy of the measuring point of the plumb line system meets the requirement.
The parts or structures of the invention which are not described in detail can be the same as those in the prior art or the existing products, and are not described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an automation equipment for plumb line system accuracy check-up, a serial communication port, including the operation platen that can carry out horizontal leveling, the operation platen is detachable to be set up on perpendicular line coordinatograph, be provided with a plurality of guide way on the operation platen, be provided with along its reciprocating sliding's slider in the guide way, slider upper portion is provided with motor I, but I tip of motor is provided with vertical reciprocating motion's strip measuring staff, strip measuring staff lower part is provided with motor II, II bottoms of motor set up the laser instrument, be used for sending the laser of directive perpendicular line system cross the line hole, II tips of motor are provided with H type touch line mechanism, one tip that H type touch line mechanism kept away from motor II is provided with perpendicular line system and crosses the line hole, H type touch line mechanism and motor I and II collaborative work, realize giving accurate displacement to the perpendicular line in the check-up process in suitable position department.
2. The automated apparatus for the accuracy verification of a plumb line system according to claim 1, wherein the operation platen is disposed on the plumb line coordinator through a triangular base at the bottom of the operation platen, a plurality of foot screws are uniformly arranged at the bottom of the operation platen, a circular level is disposed at the top of the operation platen, and N linear slide rails are disposed on the operation platen to form N-1 guide grooves.
3. The automatic device for checking the accuracy of the plumb line system according to claim 2, wherein the triangular base is provided with a bolt hole, the operation platen is fixed on the triangular base through a bottom hole bolt penetrating through the bolt hole, a magnetic base is arranged in the bottom of the triangular base, the magnetic base is connected with the handle switch, and the magnetic base is connected with the vertical line coordinatograph and separated from the vertical line coordinatograph through rotating the handle switch.
4. The automatic device for checking the accuracy of a plumb line system according to claim 2, wherein N is 3, the operation platform plate is provided with three linear slide rails at equal intervals inwards from the left edge, and the three linear slide rails are sequentially an inner slide rail, a middle slide rail and an outer slide rail, the inner slide rail and the outer slide rail are equal in height and both are lower than the middle slide rail, the inner slide rail and the middle slide rail form an inner guide groove, the middle slide rail and the outer slide rail form an outer guide groove, the bottom of the slider in the inner guide groove is provided with a magnetic gauge stand, and the bottom of the slider in the outer guide groove is of a hollow structure.
5. The automation device for the accuracy verification of the plumb line system as claimed in claim 1, wherein the positioning accuracy of the motor i and the motor ii is higher than ± 10 μm, the total stroke is 200 and 300mm, the linear moving speed of the motor is 2-5mm/s, and the motor i and the motor ii are respectively connected to and controlled by the control module.
6. The automation device for the accuracy verification of the perpendicular line system as claimed in claim 5, wherein the motor I is an X-direction linear motor, an X-direction linear motor stator of the X-direction linear motor is fixed on the upper portion of the sliding block, a cantilever sliding groove is arranged at the inner side end portion of an X-direction linear motor rotor of the X-direction linear motor, and the strip-shaped measuring rod vertically reciprocates in the cantilever sliding groove.
7. The automatic device for checking the accuracy of a plumb line system according to claim 1, wherein the motor ii is a Y-direction linear motor, a laser is disposed at the bottom of a stator of the Y-direction linear motor, the laser is a directional laser, an H-type contact mechanism is disposed at an end of a mover of the Y-direction linear motor, a conductive copper sheet is disposed inside the H-type contact mechanism and cooperates with the motors i and the Y-direction linear motor, the conductive copper sheet is connected with the control module, when the H-type contact mechanism contacts with a plumb line, the H-type contact mechanism is electrically connected to the control module, and the control module controls the motors in corresponding directions to stop moving.
8. The automated apparatus for calibrating the accuracy of a plumb line system of claim 1, wherein the strip-shaped measuring stick is provided with a plurality of rows of positioning holes from top to bottom, two holes are provided in each row, two bolt through holes are provided on the cantilever runner, and a locking nut is provided, the positioning holes are matched with the bolt through holes, and the locking nut passes through the bolt through holes and the positioning holes on the strip-shaped measuring stick from the outer side of the cantilever runner to fix the strip-shaped measuring stick at a proper height.
9. The automation device for the accuracy verification of the perpendicular line system as claimed in claim 1, wherein the laser is arranged at the middle part of one side of the motor II fixed part close to the H-shaped wire touching mechanism, the end part of the laser is provided with a laser switch, the included angle between the central axis of the laser and the horizontal plane is 30 degrees, and the light emitted by the laser can reach the edge of the wire passing hole of the perpendicular line system.
10. A verification method for an automated device for the verification of the accuracy of a plumb line system according to any one of claims 1 to 9, comprising the steps of:
step 1) selecting a proper position, placing a triangular base and an operation bedplate thereon on a vertical line coordinatograph, adjusting foot screws at the bottom of the operation bedplate, wherein at least three foot screws are in a stressed state, and adjusting a circular level so as to keep the operation bedplate in a horizontal stable state;
step 2) clamping the sliding block in the guide groove, adjusting the height of the strip measuring rod to change the height of the H-shaped contact line mechanism, fastening when the H-shaped contact line mechanism is adjusted to a position slightly higher than the height of the wire passing hole, and controlling X, Y the linear motor to enable the H-shaped contact line mechanism to be close to the edge of the wire passing hole through the control module;
step 3) turning on a laser switch, enabling a laser to emit laser rays to the upper edge of the wire passing hole, operating the X-direction linear motor to move forwards or backwards, observing whether the laser rays deviate on the upper edge of the wire passing hole, and if so, adjusting the position of the operation bedplate until the laser rays are kept on the upper edge of the wire passing hole and do not deviate in the moving forwards or backwards process of the X-direction linear motor, so that the displacement generating direction is consistent with the actual directions of the X axis and the Y axis of the vertical line coordinatograph;
step 4) adjusting the position of the H-shaped contact line mechanism to the linear motor by controlling X, Y to enable the vertical line to be located in one of two inner groove-shaped areas of the H-shaped contact line mechanism;
step 5) carrying out upstream and downstream direction displacement accuracy verification on a perpendicular line system:
the upstream direction and the downstream direction are Y directions and the downstream direction is positive, when the H-shaped contact line mechanism contacts a vertical line, the motor stops moving, an initial value of Y-direction displacement is tested, an average value is obtained, then the corresponding displacement of the vertical line is accurately given to the linear motor according to a specified stroke through control X, Y, the measured value of the change of the Y-direction displacement is tested, the average value is obtained, and finally the change B of the measured displacement of the Y-direction of the vertical line coordinatograph is calculated y (ii) a Repeating the step to check the accuracy of the displacement in the upstream direction;
step 6) carrying out the calibration of the displacement accuracy of the left bank and the right bank of the plumb line system:
setting the left and right banks as X direction and the right bank as positive, placing the vertical line in one of two groove-shaped regions of H-shaped contact line mechanism to make it in free state and stable, controlling X-direction linear motor to move according to step 5), when the X-direction linear motor stops moving, testing X-direction displacement initial value and calculating average value, then accurately setting corresponding displacement of vertical line according to appointed travel by means of control X, Y, testing X-direction displacement variation post-measuring value and calculating average value, finally calculating variation B of X-direction measured displacement of vertical line coordinatograph x (ii) a Returning the H-shaped wire touching mechanism to the original position, operating the X-direction linear motor to place the vertical wire outside the H-shaped wire touching mechanism, combining the X-direction linear motor and the Y-direction linear motor to place the vertical wire in another groove-shaped area of the H-shaped wire touching mechanism, repeating the steps in opposite directions after the vertical wire is stabilized, and checking the displacement accuracy of the left bank and the right bank in the other direction;
step 7) respectively calculating X, Y difference absolute values | delta of the measured displacement variation and the standard displacement according to the following formula x |、|δ y |：
Then, | δ x |、|δ y I is compared with the limit difference mu required by the specification, when is delta x | or | δ y |>When mu is reached, the accuracy of the measuring point of the perpendicular line system does not meet the requirement, and when the value is delta x | and | δ y When all | is less than or equal to mu, the accuracy of the measuring point of the plumb line system meets the requirement.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210380053.5A CN114858042A (en) | 2022-04-12 | 2022-04-12 | Automatic device and method for checking accuracy of plumb line system |
| PCT/CN2022/131791 WO2023197597A1 (en) | 2022-04-12 | 2022-11-14 | Automation apparatus for verifying accuracy of pendulum system, and method |
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| CN202210380053.5A CN114858042A (en) | 2022-04-12 | 2022-04-12 | Automatic device and method for checking accuracy of plumb line system |
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| CN202210380053.5A Pending CN114858042A (en) | 2022-04-12 | 2022-04-12 | Automatic device and method for checking accuracy of plumb line system |
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| WO (1) | WO2023197597A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116182692A (en) * | 2023-02-24 | 2023-05-30 | 中国长江电力股份有限公司 | Timing automatic wire pulling device and wire pulling method for telemetering plumb line coordinatograph |
| WO2023197597A1 (en) * | 2022-04-12 | 2023-10-19 | 西安热工研究院有限公司 | Automation apparatus for verifying accuracy of pendulum system, and method |
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|---|---|---|---|---|
| US4448528A (en) * | 1981-12-07 | 1984-05-15 | Mcmanus Acie J | Portable laser vertical collimator and plumb line indicator |
| CN2319787Y (en) * | 1998-01-22 | 1999-05-19 | 美华科技(南京)激光制品有限公司 | Laser rotary vertical cross plumb level gauge |
| CN109974678B (en) * | 2019-04-24 | 2021-08-24 | 西安昂科光电有限公司 | Ultrahigh-precision horizontal line calibration device |
| CN112713728B (en) * | 2020-12-30 | 2022-03-25 | 广西桂冠电力股份有限公司 | Alignment correction method for main shaft of three bearings of suspension type unit |
| CN112945273B (en) * | 2021-02-03 | 2023-11-24 | 江苏信息职业技术学院 | On-spot calibrating device of plumb line coordinatometer |
| CN113267172A (en) * | 2021-05-12 | 2021-08-17 | 中核核电运行管理有限公司 | Photoelectric type plumb line coordinatograph detection device and detection method |
| CN114858042A (en) * | 2022-04-12 | 2022-08-05 | 西安热工研究院有限公司 | Automatic device and method for checking accuracy of plumb line system |
-
2022
- 2022-04-12 CN CN202210380053.5A patent/CN114858042A/en active Pending
- 2022-11-14 WO PCT/CN2022/131791 patent/WO2023197597A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023197597A1 (en) * | 2022-04-12 | 2023-10-19 | 西安热工研究院有限公司 | Automation apparatus for verifying accuracy of pendulum system, and method |
| CN116182692A (en) * | 2023-02-24 | 2023-05-30 | 中国长江电力股份有限公司 | Timing automatic wire pulling device and wire pulling method for telemetering plumb line coordinatograph |
| CN116182692B (en) * | 2023-02-24 | 2024-03-12 | 中国长江电力股份有限公司 | Timing automatic wire pulling device and wire pulling method for telemetering plumb line coordinatograph |
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| WO2023197597A1 (en) | 2023-10-19 |
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