CN117629065B - A deep hole measuring device for nuclear power steam generator tube sheet - Google Patents
A deep hole measuring device for nuclear power steam generator tube sheet Download PDFInfo
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- CN117629065B CN117629065B CN202311581187.4A CN202311581187A CN117629065B CN 117629065 B CN117629065 B CN 117629065B CN 202311581187 A CN202311581187 A CN 202311581187A CN 117629065 B CN117629065 B CN 117629065B
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- 238000005259 measurement Methods 0.000 claims abstract description 102
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 27
- 230000007547 defect Effects 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 230000008859 change Effects 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
- G01B21/10—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 diameters
- G01B21/14—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 diameters internal diameters
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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
- G01B21/22—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 angles or tapers; for testing the alignment of axes
- G01B21/24—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 angles or tapers; for testing the alignment of axes for testing alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Health & Medical Sciences (AREA)
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a deep hole measuring device of a tube plate of a nuclear power steam generator, which comprises a tube plate mounting and posture adjusting assembly, a triaxial carrying measuring assembly, a deep hole and hole site measuring assembly and a control and data acquisition assembly, wherein the tube plate mounting and posture adjusting assembly is used for mounting a tube plate to be measured and realizing preliminary positioning of the tube plate and performing pitching and swaying adjustment so that a measured deep hole of the tube plate is parallel to the deep hole and hole site measuring assembly, the triaxial carrying measuring assembly is used for mounting the deep hole and hole site measuring assembly and realizing movement and measurement of horizontal and vertical positions of the deep hole and hole site measuring assembly, the deep hole and hole site measuring assembly is used for measuring deep hole parameters, and the control and data acquisition assembly is used for realizing movement control of the tube plate mounting and posture adjusting system, the triaxial carrying measuring assembly, the deep hole and hole site measuring assembly and acquisition and processing of measured data. The invention can realize automatic and efficient measurement of the aperture, straightness, position and the like of the tube plate of the nuclear power steam generator.
Description
Technical Field
The invention belongs to the field of metering detection in manufacturing industry, and particularly relates to a tube plate deep hole measuring device of a nuclear power steam generator.
Background
The tube plate of the steam generator is used for installing the U-shaped heat transfer tube, and in order to ensure the nondestructive passing and the service life of the U-shaped heat transfer tube, the position of the tube plate hole is required to be accurate, the hole size is strictly compounded, and the damage cannot occur. In order to process more than 1 ten thousand deep holes with the diameter of about 18mm and the depth of about 600mm on a heat dissipation tube plate, all the deep holes are required to be detected after the deep holes are processed, the inspection contents comprise parameters such as aperture diameter, straightness accuracy, perpendicularity/position accuracy and the like, the current aperture size of the deep holes is measured by a handheld gauge and a caliper gauge, the straightness/perpendicularity parameters are measured by a perpendicularity measuring tool consisting of a dial indicator and a pin shaft, the holes are measured by a laser tracker in cooperation with a pin seat, and due to the fact that the number of the holes is numerous, 6-10 days are required by adopting a manual detection means, the measurement efficiency is low, and in addition, the manual measurement is affected by manual factors, and traceability is poor.
In order to solve the problems of manual measurement, low efficiency and poor traceability of parameters such as aperture, straightness, verticality/position of a tube plate of a steam generator and the like, a deep hole measuring device for the tube plate of the nuclear power steam generator is needed.
Disclosure of Invention
The invention aims to provide a nuclear power steam generator tube plate deep hole measuring device which can realize automatic and efficient measurement of parameters such as aperture, straightness, position and the like of a nuclear power steam generator tube plate.
The invention provides a nuclear power steam generator tube plate deep hole measuring device, which comprises a tube plate mounting and posture adjusting assembly, a triaxial loading measuring assembly, a deep hole and hole site measuring assembly and a control and data acquisition assembly;
The tube plate mounting and posture adjusting assembly is used for mounting a tube plate to be measured, realizing preliminary positioning of the tube plate, and adjusting pitching and swaying so that a measured deep hole of the tube plate is parallel to the deep hole and hole site measuring assembly;
The triaxial carrying measurement assembly is used for installing the deep hole and hole site measurement assembly and realizing the movement and measurement of the horizontal and vertical positions of the deep hole and hole site measurement assembly;
the deep hole and hole site measurement assembly is used for measuring parameters of the deep hole;
the control and data acquisition component is used for realizing the motion control of the tube plate installation and posture adjustment system, the triaxial carrying measurement component, the deep hole and hole site measurement component and the acquisition and processing of measurement data.
Preferably, the installation and posture adjustment assembly comprises a heavy-duty supporting beam, a pitching shaft installation beam, a rotating disc, a rotary guide piece, a rotating fixed seat, an angle encoder installation shaft, an angle encoder, a deflection adjustment drive, a pitching ball seat installation supporting plate, a deflection guide installation plate, a bottom installation plate and a pitching drive;
The heavy-load support beam is provided with a local cylindrical surface and a local inclined surface support positioning surface, and is used for installing a tube plate and realizing preliminary positioning of the tube plate, two pitching shafts are installed on a pitching shaft installation beam and are used for providing pitching rotary positioning, the pitching shaft installation beam is installed on a rotary disc, and the rotary disc is installed on a rotary fixing seat through a rotary guide piece;
The static end of the angle encoder is arranged on the rotary fixing seat, the rotary end of the angle encoder is connected with the rotary disc through an angle encoder mounting shaft, the angle information of the rotary disc can be provided, an angle feedback quantity is provided for deflection adjustment, and a deflection adjustment drive is arranged on the bottom mounting plate and used for driving the heavy-load supporting beam to realize deflection adjustment;
the pitching drive is provided with a pitching ball seat, a pitching ball seat mounting support plate is used for supporting the pitching ball seat to realize pitching adjustment support, a deflection guide mounting plate is connected with a bottom mounting plate and used for releasing the change of radial displacement during pitching adjustment and deflection calibration, the pitching drive is arranged on a heavy-duty support beam, and the pitching ball seat is connected with the pitching ball seat mounting support plate through the pitching ball seat and used for realizing driving of pitching adjustment.
Preferably, the triaxial carrying measurement assembly comprises a transverse mounting seat, a transverse driving piece, a transverse guide rail and a measurement piece, a transverse movement sliding table, a vertical driving piece, a vertical movement sliding table and a mounting seat, a vertical guide rail and a measurement piece and a vertical mounting seat;
The transverse mounting seat is used for mounting a transverse guide rail, a measuring piece and a transverse driving piece, the transverse driving piece is used for driving the transverse movement sliding table, and the transverse guide rail and the measuring piece are used for realizing transverse guiding and position measurement of the deep hole and hole site measuring assembly;
The transverse driving piece is used for realizing transverse driving of the transverse movement sliding table, the vertical driving piece is installed in the vertical installation seat and used for driving the vertical movement sliding table and the installation seat, the vertical movement sliding table and the installation seat are used for installing the deep hole and hole site measurement assembly, and the vertical guide rail and the measurement piece are installed on the vertical installation seat and used for realizing guiding and position measurement of the vertical direction of the deep hole and hole site measurement assembly.
Preferably, the deep hole and hole site measurement assembly comprises an aperture and defect integrated measuring head, a CCD and illumination piece, a non-contact displacement sensor, a measuring rod guide seat, a measuring rod guide sleeve, a driving screw piece, a measuring rod guide rail and a measuring piece, a measuring rod mounting seat, a driving motor and an integrated mounting seat;
The measuring rod can stretch forwards and backwards, the aperture and defect integrated measuring head is used for realizing the integrated measurement of the diameter and the defect of the inner hole, the aperture and defect integrated measuring head is arranged on the measuring rod, the driving screw rod piece is used for realizing the driving of the front-back stretching of the measuring rod, the driving motor is arranged on the driving motor mounting seat and used for providing a rotating torque for the driving screw rod piece, and therefore the measuring rod mounting seat is driven to move forwards and backwards;
The measuring rod installation seat is used for installing a measuring rod, the measuring rod guide rail and the measuring piece are used for guiding and measuring the position of the measuring rod, the measuring rod guide seat is used for installing two measuring rod guide sleeves, and the front end of the measuring rod is guided through the two measuring rod guide sleeves and the measuring rod guide seat;
the CCD and the illumination piece are used for hole site measurement, the non-contact displacement sensor is used for distance measurement, and the integrated mounting seat is used for mounting the measuring rod guide rail and the measurement piece, the CCD and the illumination piece, the non-contact displacement sensor and the measuring rod guide seat.
Preferably, the transverse guide rail and the measuring piece, the vertical guide rail and the measuring piece, and the measuring rod guide rail and the measuring piece all adopt grating scales to carry out the position measurement of the deep hole and hole site measuring assembly.
Preferably, the parameters of the deep hole comprise the diameter size, straightness and position of the deep hole.
According to the nuclear power steam generator tube plate deep hole measuring device, the parameters such as the aperture, the straightness and the position degree of the nuclear power steam generator tube plate can be automatically and efficiently measured.
Drawings
For a clearer description of the technical solutions of the present invention, the following description will be given with reference to the attached drawings used in the description of the embodiments of the present invention, it being obvious that the attached drawings in the following description are only some embodiments of the present invention, and that other attached drawings can be obtained by those skilled in the art without the need of inventive effort:
FIG. 1 is a schematic structural view of a nuclear power steam generator tube sheet deep hole measurement device according to one embodiment of the invention;
FIG. 2 is a schematic view of the tube sheet mounting and attitude adjustment assembly of one embodiment of the present invention;
FIG. 3 is a schematic diagram of a three-axis load cell assembly according to one embodiment of the invention;
FIG. 4 is a schematic view of a deep hole and hole site measurement assembly according to one embodiment of the present invention;
In the figure, a 1-tube plate mounting and posture adjusting assembly, a 2-triaxial carrying measuring assembly, a 3-deep hole and hole site measuring assembly and a 4-control and data acquisition assembly are shown;
101-heavy load supporting beams, 102-pitching shafts, 103-pitching shaft mounting beams, 104-rotating disks, 105-rotating guide members, 106-rotating fixed seats, 107-angle encoder mounting shafts, 108-angle encoders, 109-yaw adjustment drives, 110-pitching ball seat mounting support plates, 111-yaw guide mounting plates, 112-bottom mounting plates and 113-pitching drives;
201-transverse mounting base, 202-transverse driving piece, 203-transverse guide rail and measuring piece, 204-transverse movement sliding table, 205-vertical driving piece, 206-vertical movement sliding table and mounting base, 207-vertical guide rail and measuring piece, 208-vertical mounting base;
301-aperture and defect integrated measuring head, 302-CCD and illuminating part, 303-non-contact displacement sensor, 304-measuring rod guide seat, 305-measuring rod guide sleeve, 306-driving screw rod part, 307-measuring rod guide rail, measuring part, 308-measuring rod, 309-measuring rod mounting seat, 310-driving motor mounting seat, 311-driving motor and 312-integrated mounting seat.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a nuclear power steam generator tube plate deep hole measuring device which is applied to automatic measurement of parameters such as diameter size, straightness and position of a nuclear power steam generator tube plate deep hole. As shown in fig. 1, the tube plate deep hole measuring device of the nuclear steam generator in the embodiment of the invention comprises a tube plate mounting and posture adjusting assembly 1, a triaxial loading measuring assembly 2, a deep hole and hole site measuring assembly 3 and a control and data acquisition assembly 4.
The tube plate mounting and posture adjusting assembly 1 is used for mounting a tube plate to realize preliminary positioning of the tube plate, and pitch and yaw adjustment is carried out according to the preliminary measurement result, so that the measured deep hole of the tube plate is parallel to the deep hole and hole position measuring assembly 3, and a foundation is laid for measuring the hole position and the inner size of the deep hole of the tube plate. The triaxial carrying and measuring assembly 2 is used for installing the deep hole and hole site measuring assembly 3 and realizing the movement and measurement of the horizontal and vertical positions of the deep hole and hole site measuring assembly 3. The deep hole and hole site measuring assembly 3 is used for measuring parameters of the deep hole and realizing the collection of attitude data of the deep hole, the hole site and the tube plate. The control and data acquisition component 4 is used for realizing the motion control of the tube plate installation and posture adjustment system 1, the triaxial carrying measurement component 2 and the deep hole and hole site measurement component 3 and the acquisition and processing of measurement data.
As shown in fig. 2, the tube plate mounting and posture adjustment assembly 1 includes a heavy-duty support beam 101, a pitch axis 102, a pitch axis mounting beam 103, a rotating disk 104, a slewing guide 105, a rotating mount 106, an angle encoder mounting shaft 107, an angle encoder 108, a yaw adjustment drive 109, a pitch head mount mounting support plate 110, a yaw guide mounting plate 111, a bottom mounting plate 112, and a pitch drive 113.
The heavy-load supporting beam 101 is used for installing a tube plate to be tested to realize the preliminary positioning, and for stabilizing the supporting target, the local cylindrical surface and the local inclined surface support the positioning surface, the whole frame structure and the local cylindrical surface and the local inclined surface support scheme are adopted, the supporting stress is homogenized, and the supporting surface is prevented from being damaged. Two pitch axles 102 are mounted on a pitch axle mounting beam 103 for providing pitch slewing positioning. The pitching axis mounting beam 103 is mounted on the rotary disk 104, and the rotary disk 104 is mounted on the rotary fixing base 106 through the rotary guide 105, and is used for providing deflection support. The static end of the angle encoder 108 is arranged on the rotary fixing seat 106 through the mounting disc, and the rotary end of the angle encoder 108 is connected with the rotary disc 104 through the angle encoder mounting shaft 107, so that the angle information of the rotary disc 104 can be provided, and the angle feedback quantity can be provided for deflection adjustment. The yaw adjustment drive 109 is mounted on the bottom mounting plate 112 for driving the heavy-duty support beam 101 to adjust the yaw. The pitching ball seat mounting support plate 110 is used for mounting a ball seat mounted on the pitching drive 113 to realize pitching adjustment support. The yaw guide mounting plate 111 is connected with the bottom mounting plate 112, and the yaw guide mounting plate 111 is used for mounting a yaw guide rail and a slider for connecting the guide rail mounted on the bottom mounting plate 112 at the same time, and is used for releasing the change of radial displacement during pitch adjustment and yaw calibration. Pitch drive 113 is mounted on heavy duty support beam 101 and is connected to pitch ball mount mounting support plate 110 via a ball mount for pitch adjustment drive.
Preferably, the yaw adjustment drive 109 and the pitch drive 113 in the tube plate installation and posture adjustment system 1 can be driven by a finished product turbine worm screw lifter, and self-locking is realized while providing yaw and pitch driving forces.
As shown in fig. 3, the triaxial carrying measurement assembly 2 includes a transverse mounting seat 201, a transverse driving member 202, a transverse guide rail and measurement member 203, a transverse movement sliding table 204, a vertical driving member 205, a vertical movement sliding table and mounting seat 206, a vertical guide rail and measurement member 207, a vertical mounting seat 208, and other components. The transverse installation seat 201 is used for installing a transverse guide rail, a measuring piece 203 and a transverse driving piece 202, adopts a hollow structure, the bottom is connected with a foundation, the top machining surface is used for installing a guide rail, the driving of a transverse movement sliding table 204 is realized through the transverse driving piece 202, and meanwhile, the positioning measurement of the transverse position is realized through the transverse guide rail, a grating ruler of the measuring piece 203 and the like. The transverse driving piece 202 adopts a lead screw driving mode or a gear-rack driving mode to realize the transverse driving of the transverse movement sliding table 204. A vertical drive 205 is mounted within the vertical mount 208 for driving the vertical movement sled and mount 206. The vertical movement sliding table and the mounting seat 206 are used for mounting the deep hole and hole site measurement assembly 3, and the vertical direction guiding and position measurement of the deep hole and hole site measurement assembly 3 are realized by mounting the vertical guide rail and the measurement piece 207 on the vertical mounting seat 208.
Preferably, the rotary guide member 105 in the triaxial carrier measuring assembly 2 may be a finished rotary support member, so as to improve integration and realize axial and radial guiding. The transverse guide rail and the measuring piece 203, the vertical guide rail and the measuring piece 207 in the triaxial loading measuring assembly 2 all adopt grating scales to carry out displacement position measurement so as to realize accurate measurement of the positions of the deep hole and hole site measuring assembly 3.
As shown in fig. 4, the deep hole and hole site measurement assembly 3 includes an aperture and defect integrated probe 301, a CCD and illumination member 302, a non-contact displacement sensor 303, a spindle guide 304, a spindle guide sleeve 305, a driving screw member 306, a spindle guide rail and measurement member 307, a spindle 308, a spindle mount 309, a driving motor mount 310, a driving motor 311, and an integrated mount 312. The aperture and defect integrated measuring head 301 is formed by fixedly connecting a miniature CCD and a miniature diameter measuring sensor, and is used for realizing the integrated measurement of the diameter of an inner hole and defects. The aperture and defect integrated stylus 301 is mounted on a stylus 308. In order to solve the problem of bending deformation of the measuring rod 308, the measuring rod 308 is guided and position-measured by the measuring rod guide rail and the measuring piece 307 after being driven by the rear end, the front end guide is formed by the two measuring rod guide sleeves 305 and the measuring rod guide seat 304, the movement vibration caused by the cantilever beam structure of the guiding rod is prevented by a double-guide scheme, and meanwhile, the inner hole diameter measurement is ensured to be accurate after the guide is stable. The measuring rod guide seat 304 is used for installing two measuring rod guide sleeves 305 to guide a measuring rod 308. The driving screw member 306 is used for driving the spindle 308 to extend back and forth, and is realized by motor driving in a screw driving screw nut mode. The driving motor 311 is mounted on the driving motor mounting base 310, and is used for providing a rotation torque for driving the screw rod 306 through a coupling, so as to drive the spindle mounting base 309 integrally mounted with the screw rod nut to move back and forth. The CCD and the illuminating piece 302 are used as hole position measuring sensors for hole position measurement, and the noncontact displacement sensor 303 is used as an attitude adjustment feedback ranging sensor for distance measurement. The integrated mounting seat 312 is respectively provided with a measuring rod guide rail and a measuring part 307, a CCD and an illuminating part 302, a non-contact displacement sensor 303 and a measuring rod guide seat 304 to realize the integrated connection of parts in the deep hole and hole site measuring assembly 3.
Preferably, the measuring rod guide rail and the measuring part 307 in the deep hole and hole position measuring assembly 3 adopt a grating ruler to perform position measurement, so as to realize accurate measurement of the diameter position of the deep hole. The non-contact displacement sensor 303 in the deep hole and hole site measurement assembly 3 adopts a triangulation displacement sensor to realize real-time displacement measurement, and meanwhile, the deflection pitching adjustment measurement precision is improved, the adjustment efficiency is improved, and the cost is reduced.
The control and data acquisition assembly 4 comprises an image data acquisition card, an industrial personal computer and a controller and is used for realizing the acquisition and motion control of the data of the tube plate installation and posture adjustment system 1, the triaxial carrying measurement assembly 2 and the deep hole and hole site measurement assembly 3 and realizing the measurement data processing.
The working method of the nuclear power steam generator tube plate deep hole measuring device provided by the embodiment of the invention comprises the following steps:
Before the tube sheet is measured, the device of the invention is in an initial state, i.e. the vertical mounting 208 of the triaxial carrier measuring assembly 2 is at one end and the measuring rod 308 in the deep hole and hole site measuring assembly 3 is in a retracted state. The detected tube plate is hoisted to the heavy-load supporting beam 101 of the installation and posture adjustment assembly 1 through hoisting equipment, and the primary positioning of the tube plate can be realized because the heavy-load supporting beam 101 is provided with a local cylindrical surface and a local inclined surface supporting and positioning surface. The accurate adjustment program needs to be executed after the preliminary positioning of the tube plate to be measured, and the accurate pitching deflection amount needs to be acquired before the preliminary positioning, therefore, firstly, the transverse driving piece 202 is controlled to drive the transverse movement sliding table 204 arranged on the guide rail of the transverse installation seat 201 to drive the transverse movement of the vertical installation seat 208 arranged on the transverse movement sliding table 204 by a manual control adjustment method, the vertical driving piece 205 is controlled to drive the vertical movement sliding table arranged on the vertical installation seat 208 and the installation seat 206 to vertically move under the guidance of the vertical guide rail and the measuring piece 207, and further the deep hole and hole site measuring assembly 3 is driven to move to the upper, lower, left and right positions of the front end of the tube plate, and simultaneously, the deep hole and hole site measuring assembly 3 position is measured in the upper, lower, left and right positions through the transverse guide rail and the measuring piece 203 and the vertical guide rail and the measuring piece 207. The pitch adjustment amount and the yaw adjustment amount can be calculated by acquiring the distance by the non-contact displacement sensor 303 mounted on the deep hole and hole site measurement assembly 3 and by data of four distance values, up, down, left and right positions. After the pitching adjustment amount is obtained, the pitching ball seat is driven to move by a pitching drive 113 arranged on the heavy-duty supporting beam 101, and further the pitching adjustment of the heavy-duty supporting beam 101 around two pitching shafts 102 arranged on the pitching shaft mounting beam 103 is realized by the reaction force of the pitching ball seat mounting supporting plate 110. With the yaw adjustment amount, the heavy-duty support beam 101 is driven to perform yaw adjustment about the slewing support by a yaw adjustment drive 109 mounted on the bottom mounting plate 112. Since both pitch and yaw adjustments involve equal diameter requirements, the change in radial displacement during pitch and yaw alignment is released by mounting yaw guide rails on yaw guide mounting plate 111 and a slider for simultaneously connecting the rails mounted on bottom mounting plate 112. The feedback quantity of pitching adjustment is directly obtained through the motor driving quantity of pitching drive 113, the feedback quantity of swaying adjustment is obtained through an angle encoder 108 arranged on a rotary fixing seat 106, pitching and swaying adjustment are carried out on the four positions up, down, left and right again after being in place, whether the four distance values are within an allowable range is checked, if not, the process is repeated, and if not, measurement is started at the allowable position.
The start of measurement requires defining a transverse and a longitudinal coordinate system, for which purpose the CCD and the illumination assembly 302 in the deep hole and hole position measuring assembly 3 are used to measure the holes of the leftmost and rightmost tube plates respectively by manual control, and based on the holes, a coordinate system is established to align with the holes on the model, thereby providing a positioning basis for all hole position measurement. Based on the CCD and the illumination component 302, the position degree measurement of the end face hole can be performed, and the hole internal size and defect measurement needs to be performed by penetrating the hole diameter and defect integrated measuring head 301 into the deep hole, therefore, firstly, the CCD and the illumination component 302 are used for calculating the hole position, determining the center of the hole position, and then, the three-axis carrying measurement component 2 is adjusted to automatically adjust the positions of the deep hole and hole position measurement component 3, so that the center of the hole diameter and defect integrated measuring head 301 can be positioned at the center of the measured hole, and further, the deep hole measurement can be performed. The deep hole measurement process is that a driving motor 311 arranged on a driving motor mounting seat 310 drives a driving screw rod piece 306 to realize the driving of the front-back extension of a measuring rod 308, in order to solve the difficult problem of bending deformation of the measuring rod 308, the measuring rod 308 is guided and displacement measured through a measuring rod guide rail and a measuring piece 307 after being driven by a rear end, the front end consisting of two measuring rod guide sleeves 305 and a measuring rod guide seat 304 is guided, the movement vibration caused by a cantilever beam structure of the guide rod is prevented through a double-guide scheme, and meanwhile, the accuracy of inner hole diameter measurement is ensured after the guiding is stable. The measuring can be started after the hole diameter and defect integrated measuring head 301 installed in front of the measuring rod enters the hole, the diameter size of the inner hole, the defect image and the deep distance of the probe can be collected while the movement is controlled by the control and data acquisition assembly 4, and further, deep hole point cloud data can be constructed, and measurement of the inner diameter and straightness of the deep hole can be carried out based on the deep hole point cloud data. After the measurement is completed, the subsequent hole measurement is carried out, and the rest hole positions can be obtained through a model after the alignment of a coordinate system, so that automatic measurement can be realized, the measurement efficiency can be greatly improved, and the acquired inner hole data simultaneously comprise the inner hole diameter and the defects, so that the digital processing analysis and the positioning of the defects can be realized.
The nuclear power steam generator tube plate deep hole measuring device provided by the embodiment of the invention has the following beneficial effects:
1. According to the invention, the non-contact displacement sensor 303 arranged on the deep hole and hole site measuring assembly 3 can be driven by the triaxial carrying measuring assembly 2, so that the quick measurement of the deflection and the posture of the tube plate end can be realized, and the tube plate mounting and posture adjusting assembly 1 can realize the quick alignment of the tube plate and the integral measuring device according to the measurement results of the deflection and the posture, thereby improving the measuring efficiency and providing a position reference for automatic measurement.
2. The deep hole and hole site measuring assembly 3 is integrally provided with the hole diameter and defect integrated measuring head 301, the CCD and the illuminating part 302, the data acquisition of the hole diameter and the defect can be realized through the hole diameter and defect integrated measuring head 301, the rapid measurement of the hole site can be realized through the CCD and the illuminating part 302, the synchronous acquisition of the size inside the hole, the defect data and the hole site data can be realized through synchronous acquisition, the measurement automation is realized, the measurement time is shortened to be within 10 hours, the measurement efficiency is greatly improved, and the problem of poor traceability of manual measurement is solved.
3. The invention improves the depth of deep hole measurement by the measuring rod 308 arranged on the deep hole and hole position measuring assembly 3.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (4)
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| CN202311581187.4A CN117629065B (en) | 2023-11-24 | 2023-11-24 | A deep hole measuring device for nuclear power steam generator tube sheet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311581187.4A CN117629065B (en) | 2023-11-24 | 2023-11-24 | A deep hole measuring device for nuclear power steam generator tube sheet |
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| CN117629065B true CN117629065B (en) | 2025-02-28 |
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| CN1354356A (en) * | 2001-12-27 | 2002-06-19 | 中国测试技术研究院 | Portable orifice-plate automatic measuring instrument |
| CN109099859A (en) * | 2018-09-26 | 2018-12-28 | 中国科学院上海光学精密机械研究所 | Optical elements of large caliber surface defect apparatus for measuring three-dimensional profile and method |
| CN114719752A (en) * | 2022-04-11 | 2022-07-08 | 中国科学院光电技术研究所 | Method for measuring geometric parameters of precision part based on universal tool microscope and measuring head |
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| CN114812428B (en) * | 2021-01-21 | 2023-09-01 | 中国科学院上海光学精密机械研究所 | Planar surface sub-aperture splicing interferometry device and measurement method |
| JP2022127750A (en) * | 2021-02-22 | 2022-09-01 | 株式会社エスト | Tube plate measuring device |
| CN113970299B (en) * | 2021-10-14 | 2024-11-12 | 中国航空工业集团公司北京长城计量测试技术研究所 | A device for high-precision vertical measurement of the outline of a slender part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354356A (en) * | 2001-12-27 | 2002-06-19 | 中国测试技术研究院 | Portable orifice-plate automatic measuring instrument |
| CN109099859A (en) * | 2018-09-26 | 2018-12-28 | 中国科学院上海光学精密机械研究所 | Optical elements of large caliber surface defect apparatus for measuring three-dimensional profile and method |
| CN114719752A (en) * | 2022-04-11 | 2022-07-08 | 中国科学院光电技术研究所 | Method for measuring geometric parameters of precision part based on universal tool microscope and measuring head |
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