CN102411032B - Industrial scale ultrasonic automatic scanning and imaging detection device - Google Patents

Industrial scale ultrasonic automatic scanning and imaging detection device Download PDF

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Publication number
CN102411032B
CN102411032B CN 201110199057 CN201110199057A CN102411032B CN 102411032 B CN102411032 B CN 102411032B CN 201110199057 CN201110199057 CN 201110199057 CN 201110199057 A CN201110199057 A CN 201110199057A CN 102411032 B CN102411032 B CN 102411032B
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ultrasonic
scanning
unit
signal
control
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CN102411032A (en
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刘松平
郭恩明
刘菲菲
马志涛
谢富原
赵林
李维涛
孙岩
李乐刚
白金鹏
曹正华
孟秋杰
李冰
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AVIC Beijing Aeronautical Manufacturing Technology Research Institute
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AVIC Beijing Aeronautical Manufacturing Technology Research Institute
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Abstract

The invention belongs to a nondestructive detection technology and relates to an industrial scale ultrasonic automatic scanning and imaging detection device used for large-scale structures made of composite materials and metal materials in the fields of aviation, aerospace, electronics, weapons, ships, metallurgy, iron and steel, transportation, construction and the like. The detection device comprises an ultrasonic automatic scanning system, an ultrasonic automatic scanning control and imaging system and a multi-channel ultrasonic system. The design according to the invention adopts a multi-axis parallel numeric control upward floating type super-static steady scanning mechanism and an ultrasonic flexible self-adaptive tracking array acoustic scanning technology, thereby greatly improving the ultrasonic automatic scanning and imaging detection efficiency and the imaging quality of the large-scale structures, realizing the industrial scale high-efficient ultrasonic automatic scanning and imaging detection of the large-scale structures made of the composite materials and the like in different specifications and enabling the detection resolution and a surface blind zone to achieve 0.13mm; and when 20 channels are detected, the efficiency is improved by at least 50 times compared with the manual scanning detection efficiency, and is improved by 20 times compared with the traditional single-channel ultrasonic automatic scanning detection.

Description

A kind of ultrasonic automatic scanning imaging detection device of technical grade
Technical field
The invention belongs to Dynamic Non-Destruction Measurement, relate to a kind of ultrasonic automatic scanning imaging detection device of the technical grade for the field compound substances such as Aeronautics and Astronautics, electronics, weapons, boats and ships, metallurgy, iron and steel, traffic, building and metal material large scale structure.
Background technology
The large scale structures such as present compound substance mainly adopt the vertical compressional wave of impulse ultrasound to penetrate/reflection detection method, to detected part transmitting/receiving acoustic signals, realize defects detection by ultrasonic transducer.This detection method requires the acoustic signals of ultrasonic transducer emission to propagate along the detected location point normal orientation of part.Adopt manual and automatic two kinds of scan modes, realize detected part is scanned by mobile ultrasonic transducer, guarantee to realize that 100% covers detection.When manual scanning detects, mainly be based on the variation of ultrasonic A-display, carry out defect estimation by the testing staff; When autoscan detects, need by designing special scanning mechanism and digital control system, ultrasonic transducer is carried out real time position, attitude and connects in-plant control, make each detection position point normal direction of sound wave incident direction and detected part consistent, then by special signal processing technology and imaging technique, reproduce testing result with image mode.Scan control and track while scan generation method mainly contain three kinds of methods: teach programming, profiling are measured and the CAD digital-to-analogue.The autoscan checkout equipment mainly contains two large classes: penetration and reflective.The penetration ultrasonic detection equipment adopts the single channel detection mode; Reflective checkout equipment is take single channel as main.
Detect for large scale structure ultrasonic automatic scannings such as compound substances, existing ultrasonic automatic scanning design of testing device adopts the rigidity ultrasonic transducer as scanning acoustic elements transmitting/receiving acoustic signals, and transducer self is without any attitude and position adjustments adaptive ability.In the scanning process, when tested point position shape face normal direction changes, the attitude that need to realize transducer by digital control system and the motion of complexity and position adjustments, control.its outstanding deficiency is: because the large scale structures such as technique for aircraft composite almost do not have the microcosmic plane characteristic, in the autoscan process, need constantly attitude and the scanning position of real-time regulation and control transducer, can guarantee that just the incident sound wave line of propagation is consistent with the shape face direction of current location, realize transmitting and receiving of ultrasound detection signal, detected part shape face is more complicated, the attitude of transducer and position adjustments are complicated, technical costs is higher, numerical control and coordinate axis to equipment require higher, for wing class composite structure, usually need at least the complicated scanning mechanism of 5-6 axle interlock, could realize the adjusting of transducer attitude and position, technical costs and the maintenance cost of equipment are high, and this regulative mode, track while scan need to be first generated and scanning could be realized, engineering adaptability is poor.
Detect in order to realize that wing class compound substance isostructural 100% covers, existing ultrasonic automatic scanning checkout equipment, at first according to detected compound substance shape face construction geometry feature, by given defect detection requirement, generate track while scan according to incident acoustic beam orientation rule, then by ultrasonic detection equipment numerical control programming and scanning and searching mechanism, drive transducer and scan detection by the track while scan that generates.Existing ultrasonic scanning orbit generation method mainly contains 3 kinds: (a) teach programming; (b) profiling is measured; (c) utilize the CAD digital-to-analogue of detected part.its significant deficiency is: scan tracing efficient is very low, and engineering practicability is poor, and the large scale structures such as compound substance are after leaving mold tooling, and part is in free state, and its profile and theoretical model differ greatly, actual profiling measurement and teach programming, efficient is too low, and make mistakes in order to prevent, the part of wounding, must carry out to the track while scan that generates the teaching test, for example, large-scale composite material structure for a L (length) * W (wide), the track while scan M bar that needs generation, every track while scan needs the K that is of profiling and measurement point, M * L * W * K will be arranged, even at the wing class composite structure for 7000 * 3000mm, when Scanning step is 2mm, every track while scan is by average 20 unique points sampling, can 30000 point measurement taught points, its workload of measuring teaching is with poor efficiency very consuming time.
The large scale structure ultrasonic automatic scanning checkout equipments such as present wing class compound substance mainly adopt single channel to detect, and its outstanding deficiency is: detection efficiency is very low, and detected part is more complicated, and detection efficiency is lower.
In the ultrasonic automatic scanning process, require between transducer and detected part near stable distance, to obtain correct stable detection signal, prevent from simultaneously injuring in scanning process part.In existing checkout equipment, to there is no special closed-loop control near distance between transducer and detected piece surface.
The structure ultrasonic automatic scanning such as existing compound substance mechanism mainly adopts the section material framework structure, the detected vertical placement of part, its outstanding deficiency is: the rigidity of scanning mechanism is bad, the bilateral driving of the long stroke in x direction of scanning is difficulty synchronously, y direction large span deflection deformation is large, and the vibration of z scanning direction is large.
Existing ultrasonic automatic scanning imaging detection device, when the large scale structures such as detection compound substance, its outstanding deficiency is: it is low that large, the vertical detection resolution in blind area is detected on the surface.
The large scale structure ultrasonic automatic scannings such as present compound substance detect, realize the coupling of sound wave mainly with the water spray mode, its deficiency is: need special water spray and filtration unit, and detection signal be subject to spray water quality and clean level impact, and also often engineering site water reclaims filtration difficulty.
For the Non-Destructive Testing of the large scale structures such as compound substance, its outstanding deficiency is: need to carry out complicated loaded down with trivial details digital controlled tracing programming according to structures such as detected compound substances, detection efficiency is low, and engineering adaptability is poor, and technical costs is expensive, and imaging effect is poor.
Summary of the invention
The purpose of this invention is to provide that a kind of engineering adaptability is good, detection efficiency is high, technical costs is low and the ultrasonic automatic scanning imaging detection device of a kind of technical grade that imaging effect is good.
Technical solution of the present invention is
Checkout equipment comprises ultrasonic automatic scanning system, ultrasonic automatic scanning control and imaging system and channel ultrasonic system three parts, wherein, the ultrasonic automatic scanning system comprises Z-direction drive system, Z-direction scanning mechanism, Y-direction drive system, X-direction drive system, Y-direction scanning mechanism, X-direction scanning mechanism, X-direction supplemental support, X scanning mechanism column, part time job platform and ground; Ultrasonic automatic scanning is controlled with imaging system and is comprised: operator's console, ultrasonic signal process and Display control computer unit, XY scan control and imaging Display control computer unit, Z-direction apart from control and computer unit, live video monitor unit and electric operation panel area; The channel ultrasonic unit comprises that channel ultrasonic sends out/receive unit and ultrasonic adaptive tracing array energy transducer.
1.) ultrasonic automatic scanning system
1.1) the Z-direction scanning moving mechanism
The Z-direction scanning moving mechanism is comprised of Z-direction drive system and Z-direction scanning mechanism.Wherein, the Z-direction drive system comprises Z-direction servomotor, Z-direction reductor and Z-direction shaft coupling; The Z-direction scanning mechanism comprises mechanical stop under mechanical stop on Z-direction, Z-direction leading screw seat, Z-direction mount pad, Z-direction up stroke stop, Z-direction down stroke stop, Z-direction leading screw, Z-direction guideway, Z-direction ram, Z-direction, Z-direction coupling shaft and Z-direction machinery self-adaptation adjusting mechanism.
The Z-direction servomotor is connected with the Z-direction leading screw by the Z-direction reductor that is arranged on the Z-direction mount pad, and the upper end of Z-direction reductor is connected with the Z-direction servomotor, and the lower end of Z-direction reductor is connected with Z-direction shaft coupling upper end, and the lower end of Z-direction shaft coupling is connected with Z-direction screw mandrel upper end; The Z-direction screw mandrel is installed fixing by the Z-direction leading screw seat at two ends, Z-direction leading screw seat is connected with the Z-direction mount pad by screw; The Z-direction mount pad is fixed on the Z-direction supporting plate; The Z-direction supporting plate is connected with the Y-direction guideway by guide rail slide block; The Z-direction guideway is arranged on the Z-direction mount pad by threads/screws, and coaxial parallel with the Z-direction leading screw; The Z-direction ram is connected with the Z-direction leading screw by feed screw nut, and be arranged on the Z-direction guideway by sliding bearing, design and installation has mechanical stop under mechanical stop on Z-direction, Z-direction, Z-direction up stroke stop and Z-direction down stroke stop respectively at Z-direction ram two ends, Z-direction up stroke stop be connected with Z-direction down stroke stop connecting line and ultrasonic automatic scanning control with imaging system in operator's console on Z-direction be connected apart from control and interface end corresponding to computer unit; Z-direction coupling shaft one end is connected with the Z-direction ram, and the other end is connected with Z-direction machinery self-adaptation adjusting mechanism; The upper end of Z-direction machinery self-adaptation adjusting mechanism is connected with the Z-direction ram by nut/screw, and the lower end of Z-direction machinery self-adaptation adjusting mechanism is connected with ultrasonic adaptive tracing array energy transducer.
1.2) the Y-direction scanning moving mechanism
The Y-direction scanning moving mechanism is comprised of Y-direction drive system and Y-direction scanning mechanism.Wherein, the Y-direction drive system comprises Y-direction servomotor and Y-direction reductor; The Y-direction scanning mechanism comprises Y beam, Y-direction guideway, Z-direction supporting plate, Y-direction servomotor, Y-direction drive installation seat, Y-direction tooth bar, Y-direction gear, Y-direction range limiter, Y-direction impact damper and Y-direction mechanical stop.
The Y-direction servomotor is connected with Y-direction reductor upper end, Y-direction reductor lower end is arranged on Y-direction drive installation seat, Y-direction drive installation seat is connected with the Z-direction supporting plate, Y-direction servomotor power line be connected with scrambler respectively with ultrasonic automatic scanning control with imaging system in operator's console on interface end corresponding to XY scan control and imaging Display control computer unit be connected.
The two ends of Y beam are connected with Y corbel plate respectively, and Y corbel plate is connected with the X-direction guideway by slide block, and the Y-direction guideway is double sided slider bar, are arranged on the Y beam; The Y-direction tooth bar is arranged on the side of Y beam, and the Y-direction tooth bar is realized dynamically being connected by the rack and wheel interlock with the Y-direction gear, and the Y-direction gear is connected with the Y-direction reductor; Be designed with Y-direction range limiter, Y-direction impact damper and Y-direction mechanical stop at Y beam two ends, the Y-direction range limiter by its connecting line respectively with ultrasonic automatic scanning control with imaging system in operator's console on interface end corresponding to XY scan control and imaging Display control computer unit be connected.
1.3) the X-direction scanning moving mechanism
The X-direction scanning moving mechanism is comprised of X-direction drive system, X-direction scanning mechanism, X-direction supplemental support, part time job platform.Wherein, the X-direction drive system comprises X-direction servomotor and X-direction reductor, adopts bilateral drive form, each group of two parallel directions X of X-direction scanning mechanism; The X-direction scanning mechanism comprises Y corbel plate, X-direction drive installation seat, X-direction tooth bar, X-direction gear, grating scale, X-direction guideway, X beam, X-direction range limiter, X-direction impact damper and X-direction mechanical stop, adopts the bilateral Parallel Symmetric version of floating type.
The X-direction servomotor is connected with an end of X-direction reductor, the X-direction reductor is arranged on X-direction drive installation seat, the other end of X-direction reductor and X-direction gear, X-direction servomotor power line be connected with scrambler respectively with ultrasonic automatic scanning control with imaging system in operator's console on interface end corresponding to XY scan control and imaging Display control computer unit be connected; X-direction drive installation seat is arranged on Y corbel plate; The X-direction tooth bar is arranged on the X beam outside, and rack and pinion is realized dynamically connecting by the rack and wheel interlock, and grating scale is arranged on the upside of X beam, the interface end connection that the XY scan control in the output of grating scale coding and operator's console and imaging Display control computer unit are corresponding; The X-direction guideway adopts two guide rails, and the X-direction guideway is arranged on X beam upside, is connected with Y corbel plate by guide rail slide block.
The X beam is designed by two parallel steel design; be arranged on X scanning mechanism column upper end; and by the X-direction supplemental support, the X beam is connected with X scanning mechanism column; be designed with X-direction range limiter, X-direction impact damper and X-direction mechanical stop at X beam upside two ends; realize the protection of directions X extreme position mechanical protection and stroke limit, the X-direction range limiter by its connecting line respectively with operator's console in interface end corresponding to XY scan control and imaging Display control computer unit connect.
The X-direction supplemental support is positioned at below the X beam, is connected with X scanning mechanism column with the X beam respectively by nuts/bolts.
X scanning mechanism column adopts firm steel design design to process, the double parallel layout, adopt equidistant uniform, the upper end of each X scanning mechanism column is connected by nuts/bolts with the X beam, the lower end of each X scanning mechanism column is adopted and is drawn the top connection to be connected with ground, and the quantity of column can be determined according to the size of detected part.
The part time job platform adopts the aluminium section bar design to process, Combined frame structure, be divided into the two many groups of row, every group can be moved and lock on the rail on the ground basal surface by the roller with self-locking, the table top of every group of worktable all adopts the manufacturing of lightweight aluminium honeycomb sandwich construction to form, in mesa designs, soft froth bed is arranged, detected part is placed on worktable, can be according to the size combinations worktable of detected part.
Ground comprises X column pedestal, worktable slide rail and sewer, wherein X column pedestal adopts the pouring of melt pit reinforced concrete to form, be connected with the installed surface steel plate by pre-embedded bolt, according to X beam column layout, X scanning mechanism column adopts with each self-corresponding installed surface steel plate bolt and draws roof construction to be connected; The worktable slide rail adopts steel design, and four rows or arrange are pressed the pulley position of worktable below more, are connected and fixed by the ground pre-embedded bolt; Be designed with the recovery sewers in the inboard surrounding of X column pedestal, be used for the water of the moisture film coupling generation of recovery autoscan testing process, the coupling of design moisture film, water consumption is very little, need not water circulation filtering system.
2.) ultrasonic automatic scanning is controlled and imaging system
2.1) operator's console
Adopt fabricated structure, be divided into group, ultrasonic signal processes and Display control computer unit, XY scan control and imaging Display control computer unit, Z-direction apart from control and computer unit, live video monitor unit, electric operation panel area; Ultrasonic signal is processed and the Display control computer unit comprises ultrasonic signal digitized processing unit, signal I/O interface circuit and Computer display unit, the ultrasonic signal of sending out/receive unit 1 output port from channel ultrasonic is processed with ultrasonic signal respectively and the Display control computer unit is connected, realizes the ultrasonic signal demonstration of each sense channel and the setting of ultrasonic feature parameter.
2.2) XY scan control and imaging Display control computer unit
XY scan control and imaging Display control computer unit are comprised of X-axis and Y-axis servo control amplifier, numerical control unit, ultrasonic digital signal conversion unit, imaging Display control computer.
X-axis servo control amplifier and Y-axis servo control amplifier are supporting with X-direction servomotor and Y-direction servomotor respectively, are arranged in operator's console; Numerical control unit adopts open multi-axis numerical control system, realize the scanning motion control of X-axis and Y-axis, the numerical control main card is arranged on industrial computer inside, interface board is arranged in rack, both connect by signal cable, be connected the position feed back signal middle position data-interface connection of the cable by separately and corresponding numerical control unit respectively with the X-direction grating scale from the scrambler of X, Y and Z-direction alternating current generator, obtain position feed back signal; Be connected the spacing control interface connection in the cable by separately and corresponding numerical control unit respectively of stroke limit signal with the Y-direction range limiter from the X-direction range limiter.
Ultrasonic digital signal conversion unit carries out real-time digitization to the channel ultrasonic detection signal after pre-process and characteristic signal conversion to be processed; Described hyperchannel scanning ultrasound detection signal real-time digitization treatment step is, 1) parallel data unit frequency, channel setting and the self check of communicating by letter; 2) parallel data acquisition; 3) each channel data buffer memory/refresh; 4) data read request judgement; 5) as nothing request read data, repeating step 2)～4); (6) as the request read data, send data; 7) end of scan marking signal judgement; 8) as the end of scan, the end data collection; (8) do not finish repeating step 2 as scanning)～5).
The imaging Display control computer realizes that by computer programming XY autoscan detected parameters arranges and operation control, ultrasonic digital signal conversion and autoscan imaging detection, result demonstration, record; Described autoscan imaging testing process step is, 1) start moisture film coupling unit and channel ultrasonic unit; 2) scanning system communication, closed loop self check; 3) the detected characteristics parameter is set; 4) sense channel is selected and the parameter setting; 5) XYZ scanning system communication self check; 6) judgement Z-direction tracking mark signal; 7) as Z-direction tracking mark invalidating signal, press the step adjusting transducer Z-direction position of transducer Z-direction position adjustments; 8) as effective in Z-direction tracking mark signal, show with the parameter setting steps by the channel ultrasonic detection signal ultrasound parameter is set; 9) the XY sweep parameter is set: start point/end point, stepping, speed, sweep limit; 10) select the interpolation scan pattern; 11) the scanning flag signal is set; 12) begin scanning; 13) end of scan judgement; 14) as the end of scan, remove the scanning flag signal; 15) saving result; 16) finish; 17) do not finish repeating step 12 as scanning) and 13).
Described channel ultrasonic detection signal shows that the step with the parameter setting is, 1) ultrasound unit frequency, gain, sequential initialization and the self check of communicating by letter; 2) judge whether the Z-direction distance adjustment puts in place; 3) as not in place in the Z-direction distance adjustment, carry out the Z-direction distance adjustment; 4) put in place as the Z-direction distance adjustment, judge whether signal shows normal; 5) show normally as signal, the parameters such as each sense channel gain, gate, frequency are set; 6) preserve parameter; 7) finish; 8) as undesired in the signal demonstration, check ultrasound unit and parameter setting, transducer unit, moisture film coupling circuit, then repeating step 5)～7).
2.3) Z-direction is apart from controlling and computer unit
Z-direction comprises Z axis servo control amplifier, numerical control unit, Z axis laser ranging unit and computing machine apart from control and computer unit, Z axis servo control amplifier and Z-direction servomotor coupling, the Z axis servo control amplifier is arranged in operator's console, be connected with line of codes by power line with Z-direction servomotor corresponding interface and be connected, the control end of Z axis servoamplifier is connected with the open cnc unit by interface circuit.
Numerical control unit adopts digital control system in open type, numerical control unit is arranged on industrial computer inside, numerical control unit is connected by signal cable with interface board, the position feed back signal of Z-direction encoder for servo motor is connected with position data interface in numerical control unit by cable, obtain position feed back signal, the cable that the stroke limit signal of being connected with Z-direction down stroke stop from Z-direction up stroke stop passes through separately respectively is connected with spacing control interface in numerical control unit, realizes Z-direction extreme limit of travel position control; By numerical control unit, ultrasonic adaptive tracing array energy transducer is regulated at the Z-direction move distance, or utilized the laser ranging signal that is arranged on ultrasonic adaptive tracing array energy transducer, carry out distance tracking in real time along Z-direction; The step that described transducer Z-direction move distance is regulated is, 1) Z-direction kinetic control system communication, closed loop, I initialization of variable; 2) judge whether the Z-direction distance is suitable; 3) need to arrange when moving the scope of moving; 4) move on to the scope of setting on Z-direction; The scope that moves down is set in the time of 5) need to moving down; 6) Z-direction moves down into the scope of setting; 7) the Z-direction move distance is set and regulates the end mark that puts in place; 8) finish the Z-direction position adjustments.
3.) channel ultrasonic system
the unit is sent out/receive by channel ultrasonic by the channel ultrasonic system and ultrasonic adaptive tracing array energy transducer forms, cellular installation is sent out/received to channel ultrasonic at an end of Y beam, the output terminal that the unit was sent out/received to channel ultrasonic control by shielded cable and ultrasonic automatic scanning that ultrasonic signal on operator's console with imaging system is processed and the Display control computer unit in accordingly interface be connected, the input end that the unit was sent out/received to channel ultrasonic connects by the signal shielding cable ultrasonic transducer corresponding with each sense channel in ultrasonic adaptive tracing array energy transducer, ultrasonic adaptive tracing array energy transducer is connected with Z-direction machinery self-adaptation adjusting mechanism by connecting interface.
Described live video monitor unit forms 4 road video monitoring systems by road CCD camera, 1 video separated screen device and 1 display, wherein, 2 road CCD cameras are arranged on respectively on X beam and Y beam, 2 the tunnel from ultrasonic adaptive tracing array energy transducer, at operator's console, field of detection different angles and ultrasonic transducer duty is monitored in real time.
Described electric operation panel area is comprised of X, Y, Z axis operation-control switch, coupling Water supply switch valve, device power supply (DPS), operating switch and pilot lamp, is positioned on operator's console, is used for operation control and the duty indication of equipment.
Described Z axis laser ranging unit is transformed by multichannel distance measuring signal numeral and interface circuit forms, wherein multichannel distance measuring signal numeral transforms the parallel integrated circuit board mode that adopts, be arranged on Z-direction apart from the computer slot in control and computer unit, by the pci bus visit data, interface circuit is arranged on operator's console inner relevant position, and Z axis laser ranging unit provides X, Y-direction laser ranging signal.
The advantage that the present invention has and beneficial effect, the present invention is directed to the large scale structure ultrasonic reflection method autoscan detection Liquified gas tankers such as compound substance, the method of the tracking of transducer self-adaptation shape face and position digital control scanning has been proposed, realized curved surface part adaptive tracing autoscan, reduce ultrasonic automatic scanning system complex degree and numerical control difficulty and technical costs, improved the engineering practicability of scanning checkout equipment.
The present invention is directed to existing ultrasonic automatic scanning checkout equipment curved surface scanning orbit generation method efficient hangs down and the poor wretched insufficiency that waits of engineering practicability, track while scan generation method based on self-adaptation shape face tracking ultrasound transducers has been proposed, need not to carry out track while scan programming and the profiling teaching of large amount of complex poor efficiency, the generation workload of its track while scan not as good as original ten thousand/, ultrasonic automatic scanning track formation efficiency is greatly improved, the technical grade detection that is particularly suitable for the large scale structures such as compound substance is used, and engineering practicability is stronger.
The present invention is directed to the large scale structure efficient ultrasonic autoscan imaging detections such as compound substance, ultrasonic flexible adaptive tracing array acoustic scanning technique is adopted in design, novel array ultrasonic area scanning method has been proposed, improved the scan area in the unit interval, make detection efficiency improve at least 15-20 doubly than conventional ultrasound automatic testing method, detect than Traditional Man and improve more than 50-80 times.
The present invention is directed in the large scale structure ultrasonic automatic scanning processes such as compound substance, approaching distance between transducer and detected part is controlled and the part requirement of shelter, closed loop control method based on the laser multiple point distance measurement has been proposed, ultrasonic adaptive array transducer is adopted in design, the contact range sweeps such as transducer have been realized, and the scanning in part edge of opening district, periphery edge and variation in thickness district, significantly improved the large scale structure autoscans such as compound substance have been covered sensing range.
The present invention is directed to the large scale structure ultrasonic automatic scanning imaging testing requirements such as compound substance, the super quiet light steady structure of floating type and the light inertia positive drive of many rails structure are adopted in design, overcome long travel synchronization drive difficult, the large span distortion is large and the prior art wretched insufficiency such as time flutter, for manufacturing and designing of the large scale structure ultrasonic automatic scanning detection systems such as compound substance provides technical grade scanning mechanism method for designing and version.
High-resolution ultrasound and transducer technology are adopted in design, but pair array scanning acoustic beam carries out covering arbitrarily combination, and the blind area is detected on the longitudinal frame of each sense channel and surface can reach single compound material laying layer thickness (approximately 0.13mm).
The moisture film coupling technique is adopted in design, and water consumption is little, need not to filter, to water quality without specific (special) requirements.
Description of drawings
Fig. 1 is the schematic diagram of efficient ultrasonic autoscan control of the present invention and imaging system;
Fig. 2 is that efficient ultrasonic autoscan of the present invention is controlled the schematic diagram that consists of with imaging system;
Fig. 3 is the schematic diagram that channel ultrasonic of the present invention system consists of;
Fig. 4 is the schematic diagram of Z-direction motion of the present invention;
Fig. 5 is the schematic diagram of Y-direction scanning mechanism of the present invention;
Fig. 6 is the schematic diagram of Y-direction position limitation protection of the present invention;
Fig. 7 is the schematic diagram of X-direction scanning mechanism of the present invention;
Fig. 8 is the schematic diagram of X-direction position limitation protection of the present invention;
Fig. 9 is the schematic diagram of Z-direction position adjustments flow process of the present invention;
Figure 10 is the schematic diagram of channel ultrasonic signal demonstration of the present invention and setting procedure;
Figure 11 is that channel ultrasonic of the present invention detects the schematic diagram that data are extracted flow process;
Figure 12 is that Z-direction distance of the present invention is from the schematic diagram of motion tracking control flow;
Figure 13 is the schematic diagram of autoscan imaging testing process of the present invention.
Embodiment
Following structure accompanying drawing elaborates to the present invention.The present invention is mainly controlled by ultrasonic automatic scanning system (Fig. 1), ultrasonic automatic scanning and forms with imaging system (Fig. 2) and channel ultrasonic system (Fig. 3) three parts.Wherein, the efficient ultrasonic automatic scanning system is comprised of Z-direction drive system 2, Z-direction motion 3, Y-direction drive system 4, X-direction drive system 5, Y-direction scanning mechanism 6, X-direction scanning mechanism 8, X-direction supplemental support 9, X scanning mechanism column 10, part time job platform 11 and ground 12; The efficient ultrasonic autoscan control with imaging system by operator's console 13, ultrasonic signal processes and Display control computer unit (14 and 15), XY scan control and imaging Display control computer unit 16, Z-direction apart from controlling and computer unit 17, live video monitor unit 18 and electric operation panel area 19 form; Unit 1 is sent out/receive by channel ultrasonic by the channel ultrasonic system and ultrasonic adaptive tracing array energy transducer 7 consists of n ultrasonic channel C h 1-Ch n
One, channel ultrasonic system
Unit 1 is sent out/receive by channel ultrasonic by the channel ultrasonic system and ultrasonic adaptive tracing array energy transducer 7 forms, and referring to Fig. 3, consists of n ultrasonic channel C h 1-Ch n
Unit 1 is sent out/received to one .1 channel ultrasonic
Can adopt UPower-1 series ultrasound unit that Beijing Aviation manufacturing engineering research institute produces to consist of channel ultrasonic and send out/receive the unit, also can commercially have the ultrasonic instrument of multi-channel function, consist of channel ultrasonic and send out/receive the unit.The end that unit 1 is arranged on Y beam 34 is sent out/received to channel ultrasonic, referring to Fig. 1.Ultrasonic signal on the output terminal that unit 1 was sent out/received to channel ultrasonic is controlled in operator's console 13 with imaging system by shielded cable and ultrasonic automatic scanning process and Display control computer unit (14,15) in accordingly interface be connected, referring to Fig. 3.the input end that unit 1 was sent out/received to channel ultrasonic connects by the signal shielding cable ultrasonic transducer corresponding with each sense channel in ultrasonic adaptive tracing array energy transducer 7, the denomination of invention of employing Beijing Aviation manufacturing engineering research institute application is " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5), realize the transmitting/receiving of ultrasound detection signal, the output signal that the unit was sent out/received to channel ultrasonic is processed by corresponding ultrasonic signal in signal-transmitting cable and operation cabinet 13 and Display control computer unit (14, 15) the Plays interface connects, referring to Fig. 2 and Fig. 3.
The one ultrasonic adaptive tracing array energy transducer 7 of .2
It is " ultrasonic adaptive tracing scanning array transducer " (application number 201110053880.5) that ultrasonic adaptive tracing array energy transducer 7 adopts denomination of invention, ultrasonic adaptive tracing array energy transducer 7 is connected with Z-direction machinery self-adaptation adjusting mechanism 33 by connecting interface, referring to Fig. 3 and Fig. 4.
size and detection efficiency requirement according to detected material structure, can match the ultrasonic adaptive tracing array energy transducer of different passages, unit and the tracking of shape surface self-adaption are sent out/received to the channel ultrasonic signal that is used for the autoscan testing process, each transducer unit can both independently carry out attitude according to tested point position and connect in-plant self-adaptation regulating in ground, consistent with the check point locality at its place with the sound beam direction that guarantees each passage transducer array emission, realize normal transmission and the reception of acoustic signals, form and cover sound field, realize the scanning of large tracts of land acoustic beam, improve effective area of detection in the unit interval, improve detection efficiency.In the autoscan process, ultrasonic adaptive tracing array energy transducer 7 carries out attitude and connects in-plant self-adaptation according to detected part shape face regulating, do not need to carry out special numerical control programming and control and the track while scan teaching, transducer face detects the blind area and longitudinal frame can reach single compound material laying layer thickness (approximately 0.13mm); Transducer self has certain self-adaptation climbing function, and in the autoscan process, in ultrasonic adaptive tracing array energy transducer 7, each transducer array can automatically be ascended and be detected part edge and open region, detects and can not affect autoscan; Ultrasonic adaptive tracing array energy transducer 7 self has the coupling of hyperchannel moisture film and forms device and function, only needing that peripheral supply channel is pulled sheath along the pipe of X, Y, Z axis is connected to its interface and gets final product, control by external electromagnetic valve and feed water valve for current and output, can form the coupling moisture film at detected piece surface by ultrasonic adaptive tracing array energy transducer 7, realize the coupling of sound wave, and not needing special water filtration design, water consumption is also very little.
Two, ultrasonic automatic scanning system
The ultrasonic automatic scanning system is comprised of Z-direction scanning moving mechanism, Y-direction scanning moving mechanism and X-direction scanning moving mechanism.Wherein, the Z-direction scanning moving mechanism comprises Z-direction drive system 2 and Z-direction scanning mechanism 3; The Y-direction scanning moving mechanism comprises Y-direction drive system 4 and Y-direction scanning mechanism 6; The X-direction scanning moving mechanism comprises X-direction drive system 5, X-direction scanning mechanism 8, X-direction supplemental support 9, X scanning mechanism column 10 and part time job platform 11.
Two .1Z are to scanning moving mechanism
The Z-direction scanning moving mechanism is comprised of Z-direction drive system 2 and Z-direction scanning mechanism 3.Wherein, Z-direction drive system 2 comprises Z-direction servomotor 20, Z-direction reductor 21 and Z-direction shaft coupling 22; Z-direction scanning mechanism 3 comprises mechanical stop 31 under mechanical stop 23 on Z-direction, Z-direction leading screw seat 24, Z-direction mount pad 25, Z-direction up stroke stop 26, Z-direction down stroke stop 27, Z-direction leading screw 28, Z-direction guideway 29, Z-direction ram 30, Z-direction, Z-direction coupling shaft 32 and Z-direction machinery self-adaptation adjusting mechanism 33, referring to Fig. 4.
Z-direction servomotor 20: adopt AC servo motor, be connected with the Z-direction reductor 21 on being arranged on Z-direction mount pad 25, the scrambler of Z-direction servomotor 20 is used for the Z-direction distance adjustment of ultrasonic adaptive tracing array energy transducer 7, referring to Fig. 4 as Z-direction movement position feedback.The denomination of invention of employing Beijing Aviation manufacturing engineering research institute application is " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5), with servomotor 20 power lines be connected with scrambler respectively with operator's console 13 in Z-direction connect apart from the interface end of controlling and computer unit 17 is corresponding, referring to Fig. 2.
Z-direction reductor 21: the upper end is connected with Z-direction servomotor 29, and its lower end is connected with shaft coupling 22;
Connect shaft coupling 22: its upper end is connected with reductor 21, and its lower end is connected with screw mandrel 28 upper ends;
Leading screw seat 24: each at two of leading screw 24, be connected with Z axis mount pad 25 by threads/screws respectively, be used for fixedly leading screw 28;
Z axis mount pad 25: be connected with Z axis supporting plate 36 by threads/screws;
Z-direction up stroke stop 26: adopt commercially available mechanical stroke switch, be arranged on Z axis mount pad 25, Z-direction up stroke stop 26 by connecting line and ultrasonic automatic scanning control with imaging system in operator's console 13 on Z-direction be connected apart from control and interface end corresponding to computer unit 17, provide the Z-direction up stroke spacing control signal;
Z-direction down stroke stop 27: adopt commercially available mechanical stroke switch, be arranged on Z axis mount pad 25, Z-direction down stroke stop 27 by connecting line and ultrasonic automatic scanning control with imaging system in operator's console 13 under Z-direction be connected apart from control and interface end corresponding to computer unit 17, provide the Z-direction down stroke spacing control signal;
Leading screw 28: by up and down leading screw seat 24, be arranged on Z axis mount pad 25;
Guideway 29: be arranged on Z axis mount pad 25 by threads/screws, and coaxial parallel with leading screw 28;
Z-direction ram 30: be connected with leading screw 28 by feed screw nut, and be arranged on guideway 29 by sliding bearing;
Under Z-direction, mechanical stop 31: be arranged on the two ends up and down of Z-direction ram 30, Z-direction limit of sports record position mechanical protection is provided;
Coupling shaft 32: the upper end is connected with Z-direction ram 30 by nut/screw, and the lower end is connected with mechanical self-adaptation adjusting mechanism 33 by nut/screw;
Machinery self-adaptation adjusting mechanism 33: the upper end is connected with Z-direction ram 32 by nut/screw, and the lower end is connected with ultrasonic adaptive tracing array energy transducer 7 by nut/screw interface.
Two .2Y are to scanning moving mechanism
The Y-direction scanning moving mechanism is comprised of Y-direction drive system 4 and Y-direction scanning mechanism 6.Wherein, Y-direction drive system 4 comprises Y-direction servomotor 37 and Y-direction reductor 38; Y-direction scanning mechanism 6 comprises Y beam 34, Y-direction guideway 35, Z-direction supporting plate 36, Y-direction servomotor 37, Y-direction drive installation seat 39, Y-direction tooth bar 40, Y-direction gear 41, Y-direction range limiter 42, Y-direction impact damper 43 and Y-direction mechanical stop 44.
Y beam 34: adopt the lightweight steel construction, form according to ultralight steady rigid design manufacturing, its two ends are connected with Y corbel plate 47 respectively by nut/screw, referring to Fig. 7; The Y beam length can be according to detected design of part size design, and its formation scope is the Y-direction sweep limit, referring to Fig. 1 and Fig. 5;
Guideway 35: adopt double sided slider bar, be arranged on Y beam 34, its length can be according to detected design of part size design, and its formation scope is the Y-direction sweep limit, referring to Fig. 1 and Fig. 5;
Z axis supporting plate (36): design by steel design, its lower end is connected with Y-direction guideway 35 by guide rail slide block, and its upper end is connected with Z-direction mount pad 25 by nut/screw, referring to Fig. 4;
Servomotor 37: drive Y-direction scanning, adopt AC servo motor, be connected with Y-direction reductor 38 upper ends, referring to Fig. 4.Y-direction servomotor 37 power lines be connected with scrambler respectively with ultrasonic automatic scanning control with imaging system in operator's console 13 on interface end corresponding to XY scan control and imaging Display control computer unit 16 be connected, the scrambler of Y-direction servomotor 37 is as Y-direction scanning motion position feedback, and the Y-direction sweep limit that is used for ultrasonic adaptive tracing array energy transducer 7 is controlled;
Y-direction reductor 38: by SMIF with nut/being threaded is arranged on Y-direction drive installation seat 39, Y-direction reductor 38 upper ends are connected with Y-direction servomotor 37, referring to Fig. 5.
Y-direction drive installation seat 39: the screw thread of being connected with nut by SMIF is connected with Z axis supporting plate 36, referring to Fig. 5;
Y-direction tooth bar 40: Y beam 34 sides are installed, and its length can be according to detected design of part size design, and its formation scope is the Y-direction sweep limit, referring to Fig. 1 and Fig. 5.
Y-direction gear 41: be connected with Y-direction reductor 38, be connected with the dynamic of Y-direction tooth bar 40 by rack and wheel interlock realization, referring to Fig. 5.
Y-direction range limiter 42: adopt commercially available mechanical type to form switch, be arranged on the two ends of Y beam 34, by connecting line and ultrasonic automatic scanning control with imaging system in operator's console 13 on Y-direction be connected apart from control and interface end corresponding to computer unit 16, provide the Y-direction up stroke spacing control signal;
Y-direction impact damper 43: be connected with Y-direction mechanical stop 44 1 ends, form Y-direction limit of sports record position mechanical protection buffering;
Y-direction mechanical stop 44: be arranged on the two ends of Y beam 34, an end is connected with Y-direction impact damper 43, and Y-direction limit of sports record position mechanical protection is provided;
Two .3X are to scanning moving mechanism
The X-direction scanning moving mechanism is comprised of X-direction drive system 5, X-direction scanning mechanism 8, X-direction supplemental support 9, X scanning mechanism column 10, part time job platform 11 and ground 12, adopts the super quiet light steady structure of floating type and the light inertia rigid design of many rails.
X-direction drive system 5 adopts bilateral drive form by X-direction servomotor 45 and X-direction reductor 46, each group of two parallel directions X of X-direction scanning mechanism 8:
X-direction servomotor 45: adopt servomotor, the mechanical interface with X-direction reductor 46 by its standard and nut/be threaded, each group of two parallel directions X, adopt bilateral driving, referring to Fig. 1 and Fig. 6;
X-direction reductor 46: the mechanical interface by its standard and nut/be threaded, be arranged on X-direction drive installation plate, an end of X-direction reductor 46 is connected with X-direction servomotor 45, each group of two parallel directions X, adopts bilateral driving, referring to Fig. 1 and Fig. 6.
X-direction scanning mechanism 8 comprises that Y corbel plate 47, X-direction drive installation seat 48, X-direction tooth bar 49, X-direction gear 50, grating scale 51, X-direction guideway 52, X beam 53, X-direction range limiter 54, X-direction impact damper 55 and X-direction mechanical stop 56 form.Adopt the bilateral Parallel Symmetric version of floating type:
Y corbel plate 47: adopt the design of steel slab construction to process, each group of two parallel directions X, be connected with Y beam 34 by nuts/bolts, be connected with X-direction guideway 52 by slide block simultaneously, referring to Fig. 1 and Fig. 5;
X-direction drive installation seat 48: adopt steel structure to design, be arranged on Y corbel plate 47;
X-direction tooth bar 49: be arranged on X beam 53 outsides, each group of two parallel directions X, referring to Fig. 1 and Fig. 6, X-direction tooth bar length can determine according to the size design of the detected design of part of reality, and its effective travel is the directions X sweep limit, referring to Fig. 1;
X-direction gear 50: be arranged on X-direction reductor 46 output shafts, referring to Fig. 1 and Fig. 6;
Grating scale 51: be arranged on X beam 53 tops, be used for the scanning of feedback ultrasonic transducer and detect the directions X position, each group of two parallel directions X, referring to Fig. 1 and Fig. 6, its effective travel is the directions X sweep limit, referring to Fig. 1.The output of grating scale 51 is as X-direction scanning position close-loop feedback, and the X-direction scanning position that is used for ultrasonic adaptive tracing array energy transducer is controlled, referring to Fig. 1 and Fig. 6; Adopting the denomination of invention of Beijing Aviation manufacturing engineering research institute application be " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5), with grating scale 51 coding outputs respectively with operator's console 13 in interface end connection corresponding to XY scan control and imaging Display control computer unit 16;
X-direction guideway 52: adopt two guide rails, be arranged on X beam 53 tops, be connected with Y corbel plate 47 by guide rail slide block, respectively one group of two parallel directions X, referring to Fig. 1 and Fig. 6, its effective travel is the directions X sweep limit, referring to Fig. 1;
X beam 53: designed by two parallel steel design, be arranged on X scanning mechanism column 10 upper ends, and by X-direction supplemental support 9, X beam 53 is connected with X scanning mechanism column 10, referring to Fig. 1;
X-direction range limiter 54: adopt commercially available mechanical type to form switch, be arranged on the two ends of X beam 53, referring to Fig. 1 and Fig. 8, by connecting line and ultrasonic automatic scanning control with imaging system in operator's console 13 on X-direction be connected apart from control and interface end corresponding to computer unit 16, X-direction stroke limit control signal is provided;
X-direction impact damper 55: be connected with X-direction mechanical stop 56 1 ends, form X-direction limit of sports record position mechanical protection buffering, referring to Fig. 8;
X-direction mechanical stop 56: be arranged on the two ends of X beam 53, an end is connected with X-direction impact damper 55, provides X-direction limit of sports record position mechanical protection, referring to Fig. 8.
X-direction supplemental support 9: each column of position is along X beam 53 length direction both sides, is connected with X scanning mechanism column with X beam 53 respectively by the nuts/bolts interface to be connected, and forms supplemental support and stabilization, referring to Fig. 1.
X scanning mechanism column 10: adopt firm steel design design to process, the double parallel layout, adopt equidistant uniform, each column upper end is connected by nuts/bolts with X beam 53, the lower end is adopted and is drawn the top connection to be connected with ground 12, the quantity of column can be determined according to the size of detected part, referring to Fig. 1.
Part time job platform 11: adopt the aluminium section bar design to process, Combined frame structure, be divided into the two many groups of row, every group by moving and lock on the rail on ground 12 bottom surfaces with the roller of self-locking, the table top of every group of worktable all adopts the manufacturing of lightweight aluminium honeycomb sandwich construction to form, and in mesa designs, soft froth bed is arranged, and detected part is placed on worktable, can be according to the size combinations worktable of detected part, referring to Fig. 1.
Ground 12: comprise X column pedestal, worktable slide rail and sewer, referring to Fig. 1.Wherein, X column pedestal adopts the pouring of melt pit reinforced concrete to form, and is connected with the installed surface steel plate by pre-embedded bolt, and according to X beam column 10 layouts, X scanning mechanism column 10 adopts with each self-corresponding installed surface steel plate bolt and draws roof construction to be connected; The worktable slide rail adopts steel design, and four rows or arrange are pressed the pulley position of worktable below more, are connected and fixed by the ground pre-embedded bolt; Be designed with the recovery sewers in the inboard surrounding of X column pedestal, be used for the water of the moisture film coupling generation of recovery autoscan testing process.
Three, ultrasonic automatic scanning is controlled and imaging system
Ultrasonic automatic scanning control processed by operator's console 13, ultrasonic signal with imaging system and Display control computer unit 14 and 15, XY scan control and imaging Display control computer unit 16, Z-direction apart from controlling and computer unit 17, live video monitor unit 18 and electric operation panel area 19 form.
Three .1 operator's console 13
Adopt the sheet metal structural design and processing to form, fabricated structure, the mobile installation, be divided into 5 groups, referring to Fig. 2, be respectively used to install ultrasonic signal is processed and Display control computer unit 14 and 15, XY scan control and imaging Display control computer unit 16, Z-direction apart from controlling and computer unit 17, live video monitor unit 18, electric operation panel area 19 and all motor electrical control device and power of alterating and direct current converter unit etc.Adopt the 380V working power, AC 220V, AC 200V, DC+5V, DC+12V/-12V, the output of DC+24V multiple power supplies are provided.
Three .2 ultrasonic signals are processed and Display control computer unit 14 and 15
Several parts such as ultrasonic signal digitized processing unit, signal I/O interface circuit, Computer display unit form.The ultrasonic signal of sending out/receive unit 1 from channel ultrasonic is connected with the Computer display unit respectively by I/O interface separately, realizes the ultrasonic signal demonstration of each sense channel and the setting of ultrasonic feature parameter.Adopt the denomination of invention of application to carry out pre-process and the characteristic signal conversion of detection signal for " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5).
Three .3XY scan control and imaging Display control computer unit 16
XY scan control and imaging Display control computer unit 16 are comprised of X-axis and Y-axis servo control amplifier and Y-axis servo control amplifier, numerical control unit, ultrasonic digital signal conversion unit, imaging Display control computer.
X and Y-axis servo control amplifier: X-axis servo control amplifier and Y-axis servo control amplifier are supporting with X-direction servomotor 45 and Y-direction servomotor 37 respectively, be arranged in operator's console 13, connect for respectively alternating current generator (37,45) by power line, X is connected control end and is connected with open multi-axis numerical control unit by interface circuit with the Y-axis servoamplifier, on the computer programming basis, controlled the motion of motor by numerical control unit, thus by XYZ separately Scan Architecture complete ultrasonic transducer the scanning of detected part detected.
Numerical control unit: adopt open multi-axis numerical control system, realize the scanning motion control of X and Y-axis, the numerical control main card is arranged on industrial computer inside, interface board is arranged in rack, both connect by signal cable, be connected 37,45 from X with the Y-direction motor) the middle position data-interface connection of the cable by separately and corresponding numerical control unit respectively of the scrambler position feedback of being connected with grating scale, the formation position feed back signal; The position feedback of being connected with the X-direction grating scale from the scrambler of X, Y and Z-direction alternating current generator (45,37,20) is the middle position data-interface connection of the cable by separately and corresponding numerical control unit respectively, obtains position feed back signal; The stroke limit signal of being connected with the Y-direction range limiter from X-direction range limiter 54 spacing control interface connection in the cable by separately and corresponding numerical control unit respectively realizes the extreme limit of travel position control.
Ultrasonic digital signal conversion unit: adopting the denomination of invention of Beijing Aviation manufacturing engineering research institute application is " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5), adopt multi-channel parallel conversion regime and plate card type structure, ultrasonic digital signal conversion unit is arranged on computer-internal base plate PCI slot by pci interface, can be configured according to the quantity of sense channel, the channel ultrasonic detection signal after pre-process and characteristic signal conversion is carried out low-cost digital processing real-time.
The imaging Display control computer: adopt industrial computer as the thing station of open cnc unit and ultrasonic digital signal conversion unit, by computer programming realize XY autoscan detected parameters arrange with operation control, ultrasonic digital signal conversion and testing result imaging demonstration, record etc.The imaging that the ultrasonic automatic interpolation scan imaging method of many acoustic beams of employing Beijing Aviation manufacturing engineering research institute invention is carried out testing result shows.
Three .4Z control and computer unit 17 to distance
Formed by major parts such as Z axis servo control amplifier, numerical control unit, Z axis laser ranging unit and computing machines.
Z axis servo control amplifier: with Z-direction servomotor 20 couplings, the Z axis servo control amplifier is arranged in operator's console 13, be connected with line of codes by power line with Z-direction servomotor 20 corresponding interfaces and be connected, the control end of servoamplifier is connected with the open cnc unit by interface circuit.
numerical control unit: adopt open integrated circuit board digital control system, numerical control unit is arranged on industrial computer inside, interface board is arranged on the position of operator's console 13 inner correspondences, numerical control unit is connected by signal cable with interface board, position feed back signal from Z-direction servomotor 20 scramblers is connected with the middle position data-interface of numerical control unit by cable, obtain position feed back signal, the cable that the stroke limit signal of being connected with Z-direction down stroke stop from Z-direction up stroke stop 26 passes through separately respectively is connected with spacing control interface in numerical control unit, realize Z-direction extreme limit of travel position control.Ultrasonic adaptive tracing array energy transducer 7 is regulated at the Z-direction move distance on the computer programming basis by numerical control unit, also can be used to from the laser ranging signal, carry out in real time distance and follow the tracks of.
Z axis laser ranging unit: formed by the conversion of multichannel distance measuring signal numeral and interface circuit, wherein multichannel distance measuring signal numeral transforms the parallel integrated circuit board mode that adopts, be arranged on Z-direction apart from the computer slot in control and computer unit 17, by the pci bus visit data, interface circuit is arranged on operator's console 13 inner relevant position.4 tunnel laser ranging signal and the standard interfaces that provide on ultrasonic adaptive tracing array energy transducer 7 are provided, are connected with Z axis laser ranging unit interface circuit corresponding ports by cable, Z axis laser ranging unit provides X, Y-direction laser ranging signal.
Computing machine: adopt industrial computer as the thing station of open cnc unit and Z axis laser ranging unit, realize that by computer programming ultrasonic adaptive tracing array energy transducer 7 moves and the distance that scans in testing process is followed the tracks of along the distance of Z-direction.
Three .5 live video monitor units 18
Form 4 road video monitoring systems by 4 road CCD cameras, 1 video separated screen device and 1 display, wherein 2 road CCD cameras are arranged on respectively on X beam 53 and Y beam 34,2 the tunnel from ultrasonic adaptive tracing array energy transducer 7, at operator's console, field of detection different angles and ultrasonic transducer duty is monitored in real time.
Three .6 electric operation panel areas 19
Formed by the operating switch such as X, Y, Z axis operation-control switch, coupling Water supply switch valve, device power supply (DPS) and pilot lamp, be positioned at operating table surface, be used for operation control and the duty indication of equipment.
During detection,
(1) detected placing part: select the combination of part time job platform 11 and put the district according to detected part dimension and shape, will be detected part and be placed on part time job platform 11 selection zone position.
(2) device power loads: by the action button of the electric operation panel area 19 in operator's console 13, to the loading that powers on of equipment each several part, and enter computer operation interface separately.
(3) transducer Z-direction position adjustments: utilize Z-direction apart from the operation interface of controlling and computer unit 17 forms by programming, control Z-direction drive system 2 and Z-direction motion 3 thereof, thereby drive the ultrasonic adaptive tracing array energy transducer 7 that is attached thereto, by presetting or the Z-direction position of requirement, ultrasonic adaptive tracing array energy transducer 7 is moved to the Z-direction correct position.The step of described transducer Z-direction position adjustments is, 1) Z-direction kinetic control system communication, closed loop, I initialization of variable; 2) judge whether the Z-direction distance is suitable; 3) need to arrange when moving the scope of moving; 4) move on to the scope of setting on Z-direction; The scope that moves down is set in the time of 5) need to moving down; 6) Z-direction moves down into the scope of setting; 7) the Z-direction position adjustments end mark zInPos that puts in place is set; 8) finish the Z-direction position adjustments, referring to Fig. 9.
(4) formation of Ultrasonic Detection passage: adopting the denomination of invention of Beijing Aviation manufacturing engineering research institute application is " ultrasonic adaptive tracing scanning array transducer " (application number 201110053880.5), by sending out/receive ultrasonic adaptive tracing array energy transducer 7 each array element in 1 pair of unit and carry out acoustic wave excitation/reception being attached thereto the channel ultrasonic that connects, form sense channel, it can be 1 Ultrasonic Detection passage, can be also a plurality of sense channels, can select and combination of channels by part detected according to reality.
(5) the channel ultrasonic detection signal shows and the parameter setting: utilize the operation interface that ultrasonic signal is processed and Display control computer unit (14 and 15) programming forms, by sending out/receive ultrasonic adaptive tracing array energy transducer 7 each array element in 1 pair of unit and carry out acoustic wave excitation/receptions, detection signal demonstration and detected parameters setting being attached thereto the channel ultrasonic that connects.Described channel ultrasonic detection signal shows that the step with the parameter setting is, 1) ultrasound unit frequency, gain, sequential initialization and the self check of communicating by letter; 2) judge whether the Z-direction distance adjustment puts in place; 3) as not in place in the Z-direction distance adjustment, carry out the Z-direction distance adjustment; 4) put in place as the Z-direction distance adjustment, judge whether signal shows normal; 5) show normally as signal, the parameters such as each sense channel gain, gate, frequency are set; 6) preserve parameter; 7) finish; 8) as undesired in the signal demonstration, check ultrasound unit and parameter setting, transducer unit, moisture film coupling circuit, then repeating step 5)～7), referring to Figure 10.
(6) face scanning probe beamforming and control: adopt ultrasonic adaptive tracing array energy transducer and the acoustic beam thereof of the invention of Beijing Aviation manufacturing engineering research institute to cover rule, sending out/receive unit 1 by channel ultrasonic realizes mode of operation and the duty of ultrasonic adaptive tracing array energy transducer 7 each array element are selected, form face scanning probe acoustic beam in detected part, improve unit interval interscan area.
(7) hyperchannel scanning ultrasound detection signal extracts: adopting the denomination of invention of Beijing Aviation manufacturing engineering research institute application is " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5), utilize the operation interface that ultrasonic signal is processed and Display control computer unit (14 and 15) programming forms, by sending out/receive ultrasonic adaptive tracing array energy transducer 7 each array element in 1 pair of unit and carry out acoustic wave excitation/reception being attached thereto the channel ultrasonic that connects, detection signal shows and the detected parameters setting, after detected parameters and characteristic signal conversion and pre-process, channel ultrasonic is sent out/is received unit 1 and receives ultrasonic feature signal from ultrasonic adaptive tracing array energy transducer 7 each sense channels, send ultrasonic digital signal conversion unit and the computing machine of XY in scan control and the computer unit 16 by its connecting line and transmission method, the ultrasound detection signal of each passage in extract real-time transducer scanning process, being used for automated imaging shows and analyzes.Described hyperchannel scanning ultrasound detection signal extraction step is, 1) parallel data unit frequency, channel setting and the self check of communicating by letter; 2) parallel data acquisition; 3) each channel data buffer memory/refresh; 4) data read request judgement; 5) as nothing request read data, repeating step 2)～4); 6) as the request read data, send data; 7) end of scan marking signal ScanOff judgement; 8) as the end of scan, the end data collection; 8) do not finish repeating step 2 as scanning)～5), referring to Figure 11.
(8) the supersonic array transducer Z-direction is apart from following the tracks of and controlling: adopting the denomination of invention of Beijing Aviation manufacturing engineering research institute application is " ultrasonic adaptive tracing scanning array transducer " (application number 201110053880.5), utilization is arranged on the multi-path laser distance measuring sensor on transducer, by the Z-direction that is attached thereto apart from control and computer unit 17 in Z axis laser ranging unit, the distance measuring signal of the laser sensor in Real-time Obtaining autoscan process, regulate during according to the laser ranging fructufy, utilize Z-direction to pass through programming apart from control and computer unit 17, control Z-direction drive system 2 and Z-direction motion 3 thereof, the ultrasonic adaptive tracing array energy transducer 7 that drive is attached thereto, by presetting or the Z-direction following range of requirement, ultrasonic adaptive tracing array energy transducer 7 is adjusted to the Z-direction preposition automatically, realize the macroscopic view of the Z-direction between ultrasonic adaptive tracing array energy transducer 7 and piece surface distance adjustment in the autoscan process.The self checks such as described supersonic array transducer Z-direction apart from following the tracks of with the control method process step is, 1) communication, closed loop; 2) judge whether Z-direction adjustment marks signal zInPos puts in place; 3) as not in place in the Z-direction adjusting, wait for; 4) adjusting puts in place as Z-direction, obtains Z-direction reference point h 05) select Z-direction following range Δ h; 6) judgement scanning flag signal ScanOff; 7) as there is no the scanning flag signal; 8) interrupt judgement; 9) as interrupting, remove Z-direction tracking mark signal zInPos; 10) finish; 11) as not interrupting, repeating step 6); 8) if any the scanning flag signal, Z-direction adjustment marks signal zInPos is set; 9) carry out current location transducer Z-direction distance adjustment; 10) judgement scanning flag signal ScanOff is effectively no; 11) as effective in scanning flag signal ScanOff, repeating step 9); 12) as invalid in scanning flag signal ScanOff, execution in step 9) and 10), shown in Figure 12.
(9) hyperchannel autoscan process transducer adaptive tracing: adopting the denomination of invention of Beijing Aviation manufacturing engineering research institute application is " ultrasonic adaptive tracing scanning array transducer " (application number 201110053880.5), himself has shape surface self-adaption ability, in array, each transducer unit can carry out Adaptive Attitude and contact distance adjustment according to detected part shape face, need not to carry out the track while scan that profiling or the ultralow efficient manner such as teaching or CAD programming are obtained each detection position point and scan line.
(10) the ultrasonic efficient autoscan imaging of detected part detects: after completing above-mentioned adjusting and arranging, utilize XY to scan control and computer unit 16, carry out the numerical control unit programming, by X-direction drive system 5 and X-direction scanning mechanism 8 thereof, 7 pairs of detected parts of ultrasonic adaptive tracing array energy transducer that drive is attached thereto detect along directions X scanning or stepping, by Y-direction drive system 4 and Y-direction scanning mechanism 6 thereof, 7 pairs of detected parts of ultrasonic adaptive tracing array energy transducer that drive is attached thereto carry out stepping or scanning detection along Y-direction scanning, the automatic interpolation scanning that realizes multitude of different ways detects, in the autoscan process, utilize ultrasonic digital signal conversion unit and imaging Display control computer in xy scan control and computer unit 16, the denomination of invention of employing Beijing Aviation manufacturing engineering research institute application is " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5), ultrasound data by each passage of programming Real-time Obtaining, the ultrasonic automatic interpolation scan imaging method of many acoustic beams of employing Beijing Aviation manufacturing engineering research institute invention is carried out the testing result imaging and is shown.Described autoscan imaging testing process step is, 1) start moisture film coupling unit and channel ultrasonic unit; 2) scanning system communication, closed loop self check; 3) the detected characteristics parameter is set; 4) sense channel is selected and the parameter setting; 5) XYZ scanning system communication self check; 6) judgement Z-direction tracking mark signal zInPos; 7) transducer Z-direction position adjustments; 8) as effective in Z-direction tracking mark signal zInPos, ultrasonic multi-channel detection signal shows and the parameter setting; 9) the XY sweep parameter is set: start point/end point, stepping, speed, sweep limit; 10) select the interpolation scan pattern; 11) scanning flag signal InScan is set; 12) begin scanning; 13) end of scan judgement; 14) as the end of scan, remove the ScanOff marker; 15) saving result; 16) remove scanning flag signal InScan; 17) finish; 18) do not finish repeating step 12 as scanning) and 13), referring to Figure 13.
(11) because the denomination of invention that adopts Beijing Aviation manufacturing engineering research application is " ultrasonic adaptive tracing scanning array transducer " (application number 201110053880.5), in array, each transducer unit can carry out Adaptive Attitude and contact distance adjustment according to detected part shape face, therefore, need not to carry out the track while scan that the ultralow efficient manner such as profiling or teaching are obtained each detection position point and scan line, only needing to detect track while scan by XY programmes and the parameter such as stepping amount is set, can realize the isostructural autoscan of wing class compound substance, greatly improved the track while scan formation efficiency, lower scanning mechanism and controlled difficult point and technical costs, face scanning acoustic beam by ultrasonic adaptive tracing array energy transducer 7 forms has improved unit interval interscan area of detection greatly, and detection efficiency is greatly improved, when 20 passage, detection efficiency improves 15-20 doubly at least than traditional single channel, improves more than 50-80 times than manual detection, the blind area is detected on detection resolution and surface can reach 0.13mm, adopted simultaneously the denomination of invention that the Beijing Aviation manufacturing engineering is applied for to be " a kind of channel ultrasonic pulse signal parallel synchronous acquisition method " (application number 201110171425.5) and " a kind of many acoustic beams ultrasonic automatic scanning formation method (application number 201110171424.0) ", can realize that the high-quality efficient ultrasonic autoscan of various thickening engineering structures is detected as the picture detection.

Claims (4)

1. the ultrasonic hyperchannel autoscan imaging detection device of a technical grade, it is characterized in that, checkout equipment comprises ultrasonic automatic scanning system, ultrasonic automatic scanning control and imaging system and channel ultrasonic system three parts, wherein, the ultrasonic automatic scanning system comprises Z-direction drive system (2), Z-direction scanning mechanism (3), Y-direction drive system (4), X-direction drive system (5), Y-direction scanning mechanism (6), X-direction scanning mechanism (8), X-direction supplemental support (9), X scanning mechanism column (10), part time job platform (11) and ground (12); Ultrasonic automatic scanning is controlled with imaging system and comprised: operator's console (13), ultrasonic signal processing and Display control computer unit (14 and 15), XY scan control and imaging Display control computer unit (16), Z-direction are apart from controlling and computer unit (17), live video monitor unit (18) and electric operation panel area (19); The channel ultrasonic system comprises that channel ultrasonic sends out/receive unit (1) and ultrasonic adaptive tracing array energy transducer (7);
1.) ultrasonic automatic scanning system
1.1) the Z-direction scanning moving mechanism
The Z-direction scanning moving mechanism is comprised of Z-direction drive system (2) and Z-direction scanning mechanism (3), and wherein, Z-direction drive system (2) comprises Z-direction servomotor (20), Z-direction reductor (21) and Z-direction shaft coupling (22); Z-direction scanning mechanism (3) comprises mechanical stop (31) under mechanical stop on Z-direction (23), Z-direction leading screw seat (24), Z-direction mount pad (25), Z-direction up stroke stop (26), Z-direction down stroke stop (27), Z-direction leading screw (28), Z-direction guideway (29), Z-direction ram (30), Z-direction, Z-direction coupling shaft (32) and Z-direction machinery self-adaptation adjusting mechanism (33);
Z-direction servomotor (20) is connected with Z-direction leading screw (28) by the Z-direction reductor (21) that is arranged on Z-direction mount pad (25), the upper end of Z-direction reductor (21) is connected with Z-direction servomotor (20), the lower end of Z-direction reductor (21) is connected with Z-direction shaft coupling (22) upper end, and the lower end of Z-direction shaft coupling (22) is connected with Z-direction leading screw (28) upper end, Z-direction leading screw (28) is installed fixing by the Z-direction leading screw seat (24) at two ends, Z-direction leading screw seat (24) is connected with Z-direction mount pad (25) by screw, Z-direction mount pad (25) is fixed on Z-direction supporting plate (36), Z-direction supporting plate (36) is connected with Y-direction guideway (35) by guide rail slide block, Z-direction guideway (29) is arranged on Z-direction mount pad (25) by threads/screws, and coaxial parallel with Z-direction leading screw (28), Z-direction ram (30) is connected with Z-direction leading screw (28) by feed screw nut, and be arranged on Z-direction guideway (29) by sliding bearing, design and installation has mechanical stop on Z-direction (23) respectively at Z-direction ram (30) two ends, mechanical stop under Z-direction (31), Z-direction up stroke stop (26) and Z-direction down stroke stop (27), Z-direction up stroke stop (26) is connected 27 with Z-direction down stroke stop) by connecting line and ultrasonic automatic scanning control with imaging system in operator's console (13) on Z-direction be connected apart from control and interface end corresponding to computer unit (17), Z-direction coupling shaft (32) one ends are connected with Z-direction ram (30), and the other end is connected with Z-direction machinery self-adaptation adjusting mechanism (33), the upper end of Z-direction machinery self-adaptation adjusting mechanism (33) is connected with Z-direction ram (30) by nut/screw, and the lower end of Z-direction machinery self-adaptation adjusting mechanism (33) is connected with ultrasonic adaptive tracing array energy transducer (7),
1.2) the Y-direction scanning moving mechanism
The Y-direction scanning moving mechanism is comprised of Y-direction drive system (4) and Y-direction scanning mechanism (6), and wherein, Y-direction drive system (4) comprises Y-direction servomotor (37) and Y-direction reductor (38); Y-direction scanning mechanism (6) comprises Y beam (34), Y-direction guideway (35), Z-direction supporting plate (36), Y-direction servomotor (37), Y-direction drive installation seat (39), Y-direction tooth bar (40), Y-direction gear (41), Y-direction range limiter (42), Y-direction impact damper (43) and Y-direction mechanical stop (44);
Y-direction servomotor (37) is connected with Y-direction reductor (38) upper end, Y-direction reductor (38) lower end is arranged on Y-direction drive installation seat (39), Y-direction drive installation seat (39) is connected with Z-direction supporting plate (36), Y-direction servomotor (37) power line be connected with scrambler respectively with ultrasonic automatic scanning control with imaging system in operator's console (13) on interface end corresponding to XY scan control and imaging Display control computer unit (16) be connected;
The two ends of Y beam (34) are connected with Y corbel plate (47) respectively, and Y corbel plate (47) is connected with X-direction guideway (52) by slide block, and Y-direction guideway (35) is double sided slider bar, are arranged on Y beam (34); Y-direction tooth bar (40) is arranged on the side of Y beam (34), and Y-direction tooth bar (40) is realized dynamically being connected by the rack and wheel interlock with Y-direction gear (41), and Y-direction gear (41) is connected with Y-direction reductor (38); Be designed with Y-direction range limiter (42), Y-direction impact damper (43) and Y-direction mechanical stop (44) at Y beam (34) two ends, Y-direction range limiter (42) by its connecting line respectively with ultrasonic automatic scanning control with imaging system in operator's console (13) on interface end corresponding to XY scan control and imaging Display control computer unit (16) be connected;
1.3) the X-direction scanning moving mechanism
The X-direction scanning moving mechanism is comprised of X-direction drive system (5), X-direction scanning mechanism (8), X-direction supplemental support (9), part time job platform (11), wherein, X-direction drive system (5) comprises X-direction servomotor (45) and X-direction reductor (46), adopt bilateral drive form, each group of two parallel directions X of X-direction scanning mechanism (8); X-direction scanning mechanism (8) comprises Y corbel plate (47), X-direction drive installation seat (48), X-direction tooth bar (49), X-direction gear (50), grating scale (51), X-direction guideway (52), X beam (53), X-direction range limiter (54), X-direction impact damper (55) and X-direction mechanical stop (56), adopts the bilateral Parallel Symmetric version of floating type;
X-direction servomotor (45) is connected with an end of X-direction reductor (46), X-direction reductor (46) is arranged on X-direction drive installation seat (48), the other end of X-direction reductor (46) and X-direction gear (50), X-direction servomotor (45) power line be connected with scrambler respectively with ultrasonic automatic scanning control with imaging system in operator's console (13) on interface end corresponding to XY scan control and imaging Display control computer unit (16) be connected; X-direction drive installation seat (48) is arranged on Y corbel plate (47); X-direction tooth bar (49) is arranged on outside X beam (53), tooth bar (49) and gear (50) interlock, grating scale (51) is arranged on the upside of X beam (53), the interface end connection that the XY scan control in grating scale (51) coding output and operator's console and imaging Display control computer unit (16) are corresponding; X-direction guideway (52) adopts two guide rails, and X-direction guideway (52) is arranged on X beam (53) upside, is connected with Y corbel plate (47) by guide rail slide block;
X beam (53) is designed by two parallel steel design, be arranged on X scanning mechanism column (10) upper end, and by X-direction supplemental support (9), X beam (53) is connected with X scanning mechanism column (10), be designed with X-direction range limiter (54) at X beam (53) upside two ends, X-direction impact damper (55) and X-direction mechanical stop (56), realize the protection of directions X extreme position mechanical protection and stroke limit, X-direction range limiter (54) by its connecting line respectively with operator's console in the connection of interface end corresponding to XY scan control and imaging Display control computer unit (16),
X-direction supplemental support (9) is positioned at below X beam (53), is connected 10 with X beam (53) with X scanning mechanism column respectively by nuts/bolts) be connected;
X scanning mechanism column (10) adopts firm steel design design to process, the double parallel layout, adopt equidistant uniform, the upper end of each X scanning mechanism column (10) is connected by nuts/bolts with X beam (53), the lower end of each X scanning mechanism column (10) is adopted and is drawn the top connection to be connected with ground (12), and the quantity of column can be determined according to the size of detected part;
Part time job platform (11) adopts the aluminium section bar design to process, Combined frame structure, be divided into the two many groups of row, every group by moving and lock on the rail on ground (12) bottom surface with the roller of self-locking, the table top of every group of worktable all adopts the manufacturing of lightweight aluminium honeycomb sandwich construction to form, in mesa designs, soft froth bed is arranged, detected part is placed on worktable, can be according to the size combinations worktable of detected part;
Ground (12) comprises X column pedestal, worktable slide rail and sewer, wherein X column pedestal adopts the pouring of melt pit reinforced concrete to form, be connected with the installed surface steel plate by pre-embedded bolt, according to X scanning mechanism column (10) layout, X scanning mechanism column (10) adopts with each self-corresponding installed surface steel plate bolt and draws roof construction to be connected; The worktable slide rail adopts steel design, and four rows or arrange are pressed the pulley position of worktable below more, are connected and fixed by the ground pre-embedded bolt; Be designed with the recovery sewers in the inboard surrounding of X column pedestal, be used for the water of the moisture film coupling generation of recovery autoscan testing process;
2.) ultrasonic automatic scanning is controlled and imaging system
2.1) operator's console (13)
Adopt fabricated structure, be divided into 5 groups, ultrasonic signal processes and Display control computer unit (14 and 15), XY scan control and imaging Display control computer unit (16), Z-direction apart from controlling and computer unit (17), live video monitor unit (18), electric operation panel area (19); Ultrasonic signal is processed and Display control computer unit (14 and 15) comprises ultrasonic signal digitized processing unit, signal I/O interface circuit and Computer display unit, the ultrasonic signal of sending out/receive unit (1) output port from channel ultrasonic processes with ultrasonic signal respectively and Display control computer unit (14 with are connected) are connected, realizes the ultrasonic signal demonstration of each sense channel and the setting of ultrasonic feature parameter; 2.2) XY scan control and imaging Display control computer unit (16)
XY scan control and imaging Display control computer unit (16) are comprised of X-axis and Y-axis servo control amplifier, numerical control unit, ultrasonic digital signal conversion unit, imaging Display control computer;
X-axis servo control amplifier and Y-axis servo control amplifier are supporting with X-direction servomotor (45) and Y-direction servomotor (37) respectively, are arranged in operator's console (13); Numerical control unit adopts open multi-axis numerical control system, realize the scanning motion control of X-axis and Y-axis, the numerical control main card is arranged on industrial computer inside, interface board is arranged in rack, both connect by signal cable, scrambler from X, Y and Z-direction alternating current generator (45,37,20) is connected 51 with the X-direction grating scale) the position feed back signal middle position data-interface connection of the cable by separately and corresponding numerical control unit respectively, obtain position feed back signal; Be connected 42 from X-direction range limiter (54) with the Y-direction range limiter) the spacing control interface connection in the cable by separately and corresponding numerical control unit respectively of stroke limit signal;
Ultrasonic digital signal conversion unit carries out real-time digitization to the channel ultrasonic detection signal after pre-process and characteristic signal conversion to be processed; Described hyperchannel scanning ultrasound detection signal real-time digitization treatment step is, 1) parallel data unit frequency, channel setting and the self check of communicating by letter; 2) parallel data acquisition; 3) each channel data buffer memory/refresh; 4) data read request judgement; 5) as nothing request read data, repeating step 2)～4); 6) as the request read data, send data; 7) end of scan marking signal judgement; 8) as the end of scan, the end data collection; 9) do not finish repeating step 2 as scanning)～5);
The imaging Display control computer realizes that by computer programming XY autoscan detected parameters arranges and operation control, ultrasonic digital signal conversion and autoscan imaging detection, result demonstration, record;
Autoscan imaging testing process step is, 1) start moisture film coupling unit and channel ultrasonic system; 2) scanning system communication, closed loop self check; 3) the detected characteristics parameter is set; 4) sense channel is selected and the parameter setting; 5) XYZ scanning system communication self check; 6) judgement Z-direction tracking mark signal; 7) as Z-direction tracking mark invalidating signal, press the step adjusting transducer Z-direction position of transducer Z-direction position adjustments; 8) as effective in Z-direction tracking mark signal, show with the parameter setting steps by the channel ultrasonic detection signal ultrasound parameter is set; 9) the XY sweep parameter is set: start point/end point, stepping, speed, sweep limit; 10) select the interpolation scan pattern; 11) the scanning flag signal is set; 12) begin scanning; 13) end of scan judgement; 14) as the end of scan, remove the scanning flag signal; 15) saving result; 16) finish; 17) do not finish repeating step 12 as scanning) and 13);
The channel ultrasonic detection signal shows that the step with the parameter setting is, 1) ultrasound unit frequency, gain, sequential initialization and the self check of communicating by letter; 2) judge whether the Z-direction distance adjustment puts in place; 3) as not in place in the Z-direction distance adjustment, carry out the Z-direction distance adjustment; 4) put in place as the Z-direction distance adjustment, judge whether signal shows normal; 5) show normally as signal, the parameters such as each sense channel gain, gate, frequency are set; 6) preserve parameter; 7) finish; 8) as undesired in the signal demonstration, check ultrasound unit and parameter setting, transducer unit, moisture film coupling circuit, then repeating step 5)～7);
2.3) Z-direction is apart from controlling and computer unit (17)
Z-direction comprises Z axis servo control amplifier, numerical control unit, Z axis laser ranging unit and computing machine apart from control and computer unit (17), Z axis servo control amplifier and Z-direction servomotor (20) coupling, the Z axis servo control amplifier is arranged in operator's console (13), be connected with line of codes by power line with Z-direction servomotor (20) corresponding interface and be connected, the control end of Z axis servoamplifier is connected with the open cnc unit by interface circuit;
Numerical control unit adopts digital control system in open type, numerical control unit is arranged on industrial computer inside, numerical control unit is connected by signal cable with interface board, the position feed back signal of Z-direction servomotor (20) scrambler is connected with position data interface in numerical control unit by cable, obtain position feed back signal, be connected 27 from Z-direction up stroke stop (26) with Z-direction down stroke stop) the stroke limit signal respectively the cable by separately be connected with spacing control interface in numerical control unit, realize Z-direction extreme limit of travel position control; By numerical control unit, ultrasonic adaptive tracing array energy transducer (7) is regulated at the Z-direction move distance, or utilized the laser ranging signal that is arranged on ultrasonic adaptive tracing array energy transducer (7), carry out distance tracking in real time along Z-direction; The step that described transducer Z-direction move distance is regulated is, 1) Z-direction kinetic control system communication, closed loop, I initialization of variable; 2) judge whether the Z-direction distance is suitable; 3) need to arrange when moving the scope of moving; 4) move on to the scope of setting on Z-direction; The scope that moves down is set in the time of 5) need to moving down; 6) Z-direction moves down into the scope of setting; 7) the Z-direction move distance is set and regulates the end mark that puts in place; 8) finish the Z-direction position adjustments;
3.) channel ultrasonic system
unit (1) is sent out/receive by channel ultrasonic by the channel ultrasonic system and ultrasonic adaptive tracing array energy transducer (7) forms, the end that unit (1) is arranged on Y beam (34) is sent out/received to channel ultrasonic, the output terminal that unit (1) was sent out/received to channel ultrasonic controls by shielded cable and ultrasonic automatic scanning that ultrasonic signal on operator's console (13) with imaging system is processed and Display control computer unit (14, 15) in, corresponding interface connects, the input end that unit (1) was sent out/received to channel ultrasonic connects by the signal shielding cable ultrasonic transducer corresponding with each sense channel in ultrasonic adaptive tracing array energy transducer (7), ultrasonic adaptive tracing array energy transducer (7) is connected with Z-direction machinery self-adaptation adjusting mechanism (33) by connecting interface.
2. the ultrasonic hyperchannel autoscan imaging detection device of a kind of technical grade according to claim 1, it is characterized in that, described live video monitor unit (18) forms 4 road video monitoring systems by 4 road CCD cameras, 1 video separated screen device and 1 display, wherein, 2 road CCD cameras are arranged on respectively on X beam (53) and Y beam (34), 2 road CCD cameras monitor field of detection different angles and ultrasonic transducer duty at operator's console in real time from ultrasonic adaptive tracing array energy transducer (7).
3. the ultrasonic hyperchannel autoscan imaging detection device of a kind of technical grade according to claim 1, it is characterized in that, described electric operation panel area (19) is comprised of X, Y, Z axis operation-control switch, coupling Water supply switch valve, device power supply (DPS), operating switch and pilot lamp, be positioned on operator's console, be used for operation control and the duty indication of equipment.
4. the ultrasonic hyperchannel autoscan imaging detection device of a kind of technical grade according to claim 1, it is characterized in that, described Z axis laser ranging unit is transformed by multichannel distance measuring signal numeral and interface circuit forms, wherein multichannel distance measuring signal numeral transforms the parallel integrated circuit board mode that adopts, be arranged on Z-direction apart from the computer slot in control and computer unit (17), by the pci bus visit data, interface circuit is arranged on operator's console (13) inner relevant position, and Z axis laser ranging unit provides X, Y-direction laser ranging signal.
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