CN105092611A - X-ray multi-purpose nondestructive flaw detection device and workpiece detection method thereof - Google Patents
X-ray multi-purpose nondestructive flaw detection device and workpiece detection method thereof Download PDFInfo
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- CN105092611A CN105092611A CN201510071923.0A CN201510071923A CN105092611A CN 105092611 A CN105092611 A CN 105092611A CN 201510071923 A CN201510071923 A CN 201510071923A CN 105092611 A CN105092611 A CN 105092611A
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Abstract
The present invention discloses an X-ray multi-purpose nondestructive flaw detection device and a workpiece detection method thereof. The structure of the device includes a protective lead room, an objective table set up in the protective lead room, a linear array detector, and an X-ray machine. The linear array detector and X-ray machine respectively have a motion mechanism capable of operating independently; the motion mechanism operating independently of the X-ray machine includes an X-ray machine transverse motion mechanism and an X-ray machine longitudinal motion mechanism; and the motion mechanism operating independently of the linear array detector includes a detector transverse motion mechanism, a detector longitudinal motion mechanism, a rotary chuck, a lifting mechanism and a translation mechanism, so that the device is compatible with CT (three-dimensional) detection and DR (planar) detection functions. In CT mode, high-resolution image files can be obtained for research and development or sampling operations; DR mode is applicable to mass workpiece detection with low detection precision requirement; thus, detection mode can be converted based on need to meet the needs of flat or three-dimensional imaging.
Description
Technical field
The present invention relates to field of non destructive testing technology, refer in particular to the multi-functional nondestructiving inspecting equipment of a kind of X ray and workpiece inspection method thereof.
Background technology
Existing X-ray equipment primary structure and principle: X ray transillumination workpiece, imaging detector receive and convert digital signal to and be sent to computing machine, then after being reduced into image by special software, carry out quality identification, analysis.But there is following defect due to the restriction of project organization in existing X-ray equipment:
1, functional mode is single: current X-ray equipment or stress CT (solid) function, stress DR (plane) function, the former can not deal with workpiece sensing in enormous quantities, the latter can not meet comparatively high measurement accuracy requirement again, and plant factor can not obtain more perfect embodiment.Therefore, generally, need configuration two kinds of X-ray apparatus, a kind of responsible CT function, a kind of responsible DR function, cause equipment purchase high cost, and floor area is larger.
2, accuracy of detection is not enough: X-ray equipment only configures a set of motion at present, range of application is wide in range not, comparatively limitation is had to the detection demand of different process method, detection accuracy and efficiency can not effectively be taken into account, not enough for welded structure Defect detection precision, also exist use duration partially short, safeguard and defect that replacement cost is higher.
3, need shielding house be built: X ray has certain nocuity, for avoiding causing damage to human body, need separately to build shielding house, X-ray equipment is placed in shielding house.This can increase construction cost without query, and X-ray equipment moves inconvenience, and all workpieces for measurement all need to remove in shielding house, take time and effort, and increase unnecessary burden.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its fundamental purpose is to provide the multi-functional nondestructiving inspecting equipment of a kind of X ray and workpiece inspection method thereof, compatible CT measuring ability and DR measuring ability, CT and DR shares protective lead room, building radiation shield room without the need to adding, making equipment arbitrarily can be arranged on any position, workshop; And installing respectively at same internal body can the motion of independent operating, runs, makes DR and CT power and energy organically combine, raising equipment performance depending on job requirements.
For achieving the above object, the present invention adopts following technical scheme:
The multi-functional nondestructiving inspecting equipment of a kind of X ray, comprises
One protective lead room, this protective lead room is configured with one can the protective lead door of open/close, is surrounded form airtight detection space by this protective lead room and protective lead door;
One objective table, this objective table can be located on the support platform bottom detection space sliding active, and described objective table is provided with the rotary chuck for putting workpiece, and this rotary chuck is connected with elevating mechanism and translation mechanism;
One linear array detector, this linear array detector is installed in the support platform below this objective table, and this linear array detector connects detector transverse motion mechanism, detector longitudinal motion mechanism;
One X-ray production apparatus, this X-ray production apparatus is installed on roof, the protective lead room internal face at detection space top, and this X-ray production apparatus is connected with X-ray production apparatus transverse motion mechanism, X-ray production apparatus longitudinal motion mechanism.
As a kind of preferred version, described rotary chuck comprises the first chuck and the second chuck, and this first chuck configures the first deck, this second chuck configures the second deck; The translation mechanism of described rotary chuck comprises the two translation slide rails be arranged on objective table, and be overlapped in the translatory slides between this two translations slide rail, described second deck is fixed on this translatory slides.
As a kind of preferred version, described elevating mechanism connects servomotor, and this servomotor is arranged on the first deck and the second deck.
As a kind of preferred version, described detector transverse motion mechanism comprises horizontal servomotor and by the horizontal slide rail of this horizontal driven by servomotor and horizontal concrete chute fit structure; Described detector longitudinal motion mechanism comprises servo longitudinal motor and the fit structure by the motor-driven longitudinal slide rail of this servo longitudinal and longitudinal chute.
As a kind of preferred version, described X-ray production apparatus transverse motion mechanism comprises horizontal servomotor and by the horizontal slide rail of this horizontal driven by servomotor and horizontal concrete chute fit structure; Described X-ray production apparatus longitudinal motion mechanism comprises servo longitudinal motor and the fit structure by the motor-driven longitudinal slide rail of this servo longitudinal and longitudinal chute.
As a kind of preferred version, the bottom of described objective table installs townhouse engaged wheel additional.
As a kind of preferred version, described objective table is by driven by servomotor.
As a kind of preferred version, the protective lead door in described protective lead room is upper and lower opening and closing structure.
A workpiece inspection method for the multi-functional nondestructiving inspecting equipment of X ray, the compatible CT of the multi-functional nondestructiving inspecting equipment of this X ray detects and DR measuring ability;
DR detects and comprises the following steps:
(1) first open detection protective lead door, objective table is outputed outside protective lead door;
(2) be laid on objective table by examined workpiece, tiling process notices that interval inspected object is not stacking;
(3) workpiece place after by stage movement in protective lead room, close protective lead door;
(4) ray is opened, and linear array detector and X-ray production apparatus are accurately controlled by servomotor, and moment maintenance aligns and is synchronized with the movement;
(5) by computer system simultaneous display detected image, and be stored in hard disc of computer;
(6) control the plumbous door of opening protection function after institute's placing articles on objective table has all scanned by imaging system and change a collection of examined workpiece;
CT measuring ability can not use with DR measuring ability simultaneously, and CT detects and comprises the following steps:
(1) open passage protective lead door during CT scan, manually by examined workpiece clamping on high-precision rotary chuck, promoted by elevating mechanism or the rotary chuck that declines to regulate the distance of workpiece for measurement, for adjusting focal length;
(2) protective lead door is closed after Focussing, start to scan, X-ray production apparatus and linear array detector keep motionless, the transversal scanning campaign of object is provided by high-precision flat moving mechanism, after run-down, rotary chuck scans after turning an angle again, until carry out data calculating by computing machine after having scanned.
(3) the whole Surface scan of examined workpiece complete after the plumbous door of opening protection function change next examined workpiece.
The present invention compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution, by arranging linear array detector, X-ray production apparatus, and this linear array detector and X-ray production apparatus have respectively can motion (namely corresponding to X-ray production apparatus X-ray production apparatus transverse motion mechanism, the X-ray production apparatus longitudinal motion mechanism of independent operating; The detector transverse motion mechanism corresponding to linear array detector, detector longitudinal motion mechanism, rotary chuck, elevating mechanism and translation mechanism), this hardware compatibility CT (solid) is detected and DR (plane) measuring ability.The image file of high-res can be obtained under CT pattern, be applicable to research and development or sampling observation operation.The lower workpiece sensing in enormous quantities of accuracy requirement is applicable under DR pattern.Thus, according to any transition detection pattern of needs, to meet plane or three-dimensional imaging demand, can obtain the High-precision image of research and development or sampling observation, can mass detection be met again.Functions of the equipments are comprehensive, change the limitation of Traditional x-ray defect-detecting equipment DR and CT function compatibility, reduce applying unit buys two complete equipments situation because of difference in functionality demand.
In addition, the present invention configures this independent protective lead room, the main mechanical components such as x-ray system and imaging system is all installed in plumbous room, long distance, visualized operation, and install protective lead door additional and make inner to form the detection space closed, during scanning operation, personnel are without the need to close to x-ray source, significantly reduce the possibility that operating personnel is subject to x radiation x injury.In addition, the design in this enclosed protective lead room makes checkout equipment build radiation shield room without the need to adding, and arbitrarily can be arranged on any position, workshop, Open architecture designs, facilitate workpiece to free in and out, efficiency be high, simple operation, the advantages such as reliability is high, easy to maintenance.
For more clearly setting forth architectural feature of the present invention and effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention analyse and observe state front view;
Fig. 2 is the cut-open view at A-A place in Fig. 1;
Fig. 3 is the cut-open view at B-B place in Fig. 1;
Fig. 4 is the right view of the embodiment of the present invention, and the protective lead door in figure is in opening-wide state.
Accompanying drawing identifier declaration:
10, protective lead room 11, protective lead door
12, support platform 20, objective table
21, townhouse engaged wheel 22, rotary chuck
221, the first chuck 222, second chuck
223, the first deck 224, second deck
23, elevating mechanism 24, translation mechanism
241, translation slide rail 242, translatory slides
30, linear array detector 31, detector transverse motion mechanism
32, detector longitudinal motion mechanism 40, X-ray production apparatus
41, X-ray production apparatus transverse motion mechanism 42, X-ray production apparatus longitudinal motion mechanism
Embodiment
Please refer to shown in Fig. 1 to Fig. 4, that show the concrete structure of the preferred embodiment of the present invention, it is the multi-functional nondestructiving inspecting equipment of a kind of X ray, the compatible CT (solid) of the multi-functional nondestructiving inspecting equipment of this X ray is detected and DR (plane) measuring ability, is specially adapted to multi items, in enormous quantities, small complex constitutional detail detection.Its structure includes protective lead room 10, is arranged at the objective table 20 in protective lead room 10, linear array detector 30, X-ray production apparatus 40.
Wherein, this protective lead room 10 is configured with one can the protective lead door 11 of open/close, is surrounded form airtight detection space by this protective lead room 10 and protective lead door 11.In the present embodiment, the protective lead door 11 in described protective lead room 10 is upper and lower opening and closing structure.This independent protective lead room 10 is configured by the present invention, the main mechanical components such as x-ray system and imaging system is all installed in protective lead room 10, long distance, visualized operation, and install protective lead door 11 additional and make inner to form the detection space closed, during scanning operation, personnel are without the need to close to x-ray source, significantly reduce the possibility that operating personnel is subject to x radiation x injury.In addition, the design in this enclosed protective lead room 10 makes checkout equipment build radiation shield room without the need to adding, and arbitrarily can be arranged on any position, workshop, Open architecture designs, facilitate workpiece to free in and out, efficiency be high, simple operation, the advantages such as reliability is high, easy to maintenance.
Described objective table 20 can be located on the support platform 12 bottom detection space sliding active.This objective table 20, by driven by servomotor, outputs protective lead door 11, workpiece loading and unloading.Install townhouse engaged wheel 21 additional in the bottom of objective table 20, the design of this townhouse engaged wheel 21 enables objective table 20 run through protective lead door 11 gap held stationary, and reliability is high.
Described objective table 20 is provided with the rotary chuck 22 for putting workpiece, and this rotary chuck 22 is connected with elevating mechanism 23 and translation mechanism 24.In the present embodiment, described rotary chuck 22 comprises the first chuck 221 and the second chuck 222, and this first chuck 221 configures the first deck 223, this second chuck 222 configures the second deck 224.The translation mechanism 24 of described rotary chuck 22 comprises the two translation slide rails 241 be arranged on objective table 20, be overlapped in translatory slides 242 between this two translations slide rail 241, and described second deck 224 is fixed on this translatory slides 242.By this, by regulating the distance of translatory slides 242 to adjust the spacing between first, second chuck 221,222, to adapt to the workpiece to be checked of different size dimension, the scope of application of workpiece to be checked is expanded; Moreover by rotating the multiaxial motion functions such as rotary chuck 22, inclination, multi-shaft interlocked, multiple degrees of freedom setting, obtains the best as required and analyses and observe image, can obtain multi-angle, all-around video.
The elevating mechanism 23 of described rotary chuck 22 connects servomotor, and this servomotor is arranged on the first deck 223 and the second deck 224, promoted by elevating mechanism 23 or the rotary chuck 22 that declines to regulate the distance of workpiece for measurement, for adjusting focal length.The present embodiment adopts driven by servomotor elevating mechanism 23, and control accuracy is higher.
Described linear array detector 30 is installed in the support platform 12 below this objective table 20, and this linear array detector 30 is connected with detector transverse motion mechanism 31, detector longitudinal motion mechanism 32.In the present embodiment, as a kind of preferred version, described detector transverse motion mechanism 31 comprises horizontal servomotor and is connected on horizontal slide rail and the horizontal concrete chute fit structure of this horizontal servomotor; Described detector longitudinal motion mechanism 32 comprises servo longitudinal motor and is connected on longitudinal slide rail of this servo longitudinal motor and the fit structure of longitudinal chute.Be there is by driven by servomotor the advantage of high precision control.
Described X-ray production apparatus 40 is installed on roof, protective lead room 10 internal face at detection space top, and X-ray production apparatus 40 is connected with X-ray production apparatus transverse motion mechanism 41, X-ray production apparatus longitudinal motion mechanism 42.In the present embodiment, as a kind of preferred version, described X-ray production apparatus transverse motion mechanism 41 comprises horizontal servomotor and is connected on horizontal slide rail and the horizontal concrete chute fit structure of this horizontal servomotor; Described X-ray production apparatus longitudinal motion mechanism 42 comprises servo longitudinal motor and is connected on longitudinal slide rail of this servo longitudinal motor and the fit structure of longitudinal chute.Be there is by driven by servomotor the advantage of high precision control.In addition, adopt high tolerance x-ray system, current/voltage is adjustable, to adapt to unlike material, density workpiece.
In summary, this linear array detector 30 and X-ray production apparatus 40 have respectively can the motion of independent operating, and corresponding CT or DR detects demand respectively; Run depending on job requirements, DR and CT power and energy is organically combined, improve equipment performance.
The multi-functional nondestructiving inspecting equipment of X ray of the present invention, can obtain the image file of high-res under CT pattern, is applicable to research and development or sampling observation operation; The lower workpiece sensing in enormous quantities of accuracy requirement is applicable under DR pattern.Thus, according to any transition detection pattern of needs, to meet plane (DR) or three-dimensional (CT) imaging demand, can obtain the High-precision image of research and development or sampling observation, can mass detection be met again; Make functions of the equipments comprehensive, change the limitation of Traditional x-ray defect-detecting equipment DR and CT function compatibility, reduce applying unit buys two complete equipments situation because of difference in functionality demand.
Wherein, DR detects and comprises the following steps:
1. first open and detect protective lead door 11, objective table 20 is outputed outside protective lead door 11;
2. be laid in by examined workpiece on objective table 20, tiling process notices that interval inspected object is not stacking;
3. objective table 20 moves in protective lead room 10 after placing by workpiece, closes protective lead door 11;
4. ray is opened, and linear array detector 30 and X-ray production apparatus 40 are accurately controlled by servomotor, and moment maintenance aligns and is synchronized with the movement;
5. by computer system simultaneous display detected image, and be stored in hard disc of computer;
6. control the plumbous door 11 of opening protection function after institute's placing articles on objective table 20 has all scanned by imaging system and change a collection of examined workpiece;
7, computer system increases weld defect grade automatic discrimination program, meets welding detection demand.
CT measuring ability can not use with DR measuring ability simultaneously, has relatively independent mechanism and detect accurately during use CT measuring ability.CT detects and comprises the following steps:
1.CT scanning time open passage protective lead door 11, manually by examined workpiece clamping on high-precision rotary chuck 22, promoted by elevating mechanism 23 or the rotary chuck 22 that declines to regulate the distance of workpiece for measurement, for adjusting focal length;
2. close protective lead door 11 after Focussing, start to scan, X-ray production apparatus 40 and linear array detector 30 keep motionless, the transversal scanning campaign of object is provided by high-precision flat moving mechanism 24, after run-down, rotary chuck 22 scans after turning an angle again, until carry out data calculating by computing machine after having scanned;
3. the whole Surface scan of examined workpiece complete after the plumbous door 11 of opening protection function change next examined workpiece;
4, computer system increases weld defect grade automatic discrimination program, meets welding detection demand.
By this, under DR pattern, workpiece can be positioned in work piece platform, simple and fast, improving sweep efficiency, also can add clamping jig, to adapt to the demand such as shape, scanning angle of different workpieces; Under CT pattern, CT motion possesses the multiaxial motion functions such as rotation, inclination, multi-shaft interlocked, multiple degrees of freedom setting, obtains the best as required and analyses and observe image, make it to obtain multi-angle, all-around video.
In sum, design focal point of the present invention is:
First, by arranging linear array detector 30, X-ray production apparatus 40, and this linear array detector 30 and X-ray production apparatus 40 have respectively can the motion of independent operating (wherein, the motion of independent operating corresponding to X-ray production apparatus 40 refers to X-ray production apparatus transverse motion mechanism 41 and X-ray production apparatus longitudinal motion mechanism 42; The motion of the independent operating corresponding to linear array detector 30 refers to detector transverse motion mechanism 31, detector longitudinal motion mechanism 32, rotary chuck 22, elevating mechanism 23 and translation mechanism 24), this hardware compatibility CT (solid) is detected and DR (plane) measuring ability.The image file of high-res can be obtained under CT pattern, be applicable to research and development or sampling observation operation.The lower workpiece sensing in enormous quantities of accuracy requirement is applicable under DR pattern.Thus, according to any transition detection pattern of needs, to meet plane or three-dimensional imaging demand, can obtain the High-precision image of research and development or sampling observation, can mass detection be met again.These functions of the equipments are comprehensive, change the limitation of Traditional x-ray defect-detecting equipment DR and CT function compatibility, reduce applying unit buys two complete equipments situation because of difference in functionality demand.
Second, the present invention configures this independent protective lead room 10, the main mechanical components such as x-ray system and imaging system is all installed in protective lead room, long distance, visualized operation, and install protective lead door 11 additional and make inner to form the detection space closed, during scanning operation, personnel are without the need to close to x-ray source, significantly reduce the possibility that operating personnel is subject to x radiation x injury.In addition, the design in this enclosed protective lead room 10 makes checkout equipment build radiation shield room without the need to adding, and arbitrarily can be arranged on any position, workshop, Open architecture designs, facilitate workpiece to free in and out, efficiency be high, simple operation, the advantages such as reliability is high, easy to maintenance.
3rd, objective table 20 advances/releases protective lead door 11 to put the mode of workpiece, very simple and convenient, improving sweep efficiency, in addition, bottom due to objective table 20 installs townhouse engaged wheel 21 additional, and the design of this townhouse engaged wheel 21 enables objective table 20 run through protective lead door 11 gap held stationary, and reliability is high.
Four, because X-ray production apparatus transverse motion mechanism 41, X-ray production apparatus longitudinal motion mechanism 42, detector transverse motion mechanism 31, detector longitudinal motion mechanism 32, elevating mechanism 23, translation mechanism 24 and objective table 20 are by driven by servomotor, there is high precision control, each motion is run more steady, thus detect precisely.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. the multi-functional nondestructiving inspecting equipment of X ray, is characterized in that: comprise
One protective lead room, this protective lead room is configured with one can the protective lead door of open/close, is surrounded form airtight detection space by this protective lead room and protective lead door;
One objective table, this objective table can be located on the support platform bottom detection space sliding active, and described objective table is provided with the rotary chuck for putting workpiece, and this rotary chuck is connected with elevating mechanism and translation mechanism;
One linear array detector, this linear array detector is installed in the support platform below this objective table, and this linear array detector connects detector transverse motion mechanism, detector longitudinal motion mechanism;
One X-ray production apparatus, this X-ray production apparatus is installed on roof, the protective lead room internal face at detection space top, and this X-ray production apparatus is connected with X-ray production apparatus transverse motion mechanism, X-ray production apparatus longitudinal motion mechanism.
2. the multi-functional nondestructiving inspecting equipment of X ray according to claim 1, is characterized in that: described rotary chuck comprises the first chuck and the second chuck, and this first chuck configures the first deck, this second chuck configures the second deck; The translation mechanism of described rotary chuck comprises the two translation slide rails be arranged on objective table, and be overlapped in the translatory slides between this two translations slide rail, described second deck is fixed on this translatory slides.
3. the multi-functional nondestructiving inspecting equipment of X ray according to claim 2, is characterized in that: described elevating mechanism connects servomotor, and this servomotor is arranged on the first deck and the second deck.
4. the multi-functional nondestructiving inspecting equipment of X ray according to claim 1, is characterized in that: described detector transverse motion mechanism comprises horizontal servomotor and by the horizontal slide rail of this horizontal driven by servomotor and horizontal concrete chute fit structure; Described detector longitudinal motion mechanism comprises servo longitudinal motor and the fit structure by the motor-driven longitudinal slide rail of this servo longitudinal and longitudinal chute.
5. the multi-functional nondestructiving inspecting equipment of X ray according to claim 1, is characterized in that: described X-ray production apparatus transverse motion mechanism comprises horizontal servomotor and by the horizontal slide rail of this horizontal driven by servomotor and horizontal concrete chute fit structure; Described X-ray production apparatus longitudinal motion mechanism comprises servo longitudinal motor and the fit structure by the motor-driven longitudinal slide rail of this servo longitudinal and longitudinal chute.
6. the multi-functional nondestructiving inspecting equipment of X ray according to claim 1, is characterized in that: the bottom of described objective table installs townhouse engaged wheel additional.
7. the multi-functional nondestructiving inspecting equipment of X ray according to claim 1, is characterized in that: described objective table is by driven by servomotor.
8. the multi-functional nondestructiving inspecting equipment of X ray according to claim 1, is characterized in that: the protective lead door in described protective lead room is upper and lower opening and closing structure.
9. a workpiece inspection method for the multi-functional nondestructiving inspecting equipment of X ray, is characterized in that: the compatible CT of the multi-functional nondestructiving inspecting equipment of this X ray detects and DR measuring ability;
DR detects and comprises the following steps:
(1) first open detection protective lead door, objective table is outputed outside protective lead door;
(2) be laid on objective table by examined workpiece, tiling process notices that interval inspected object is not stacking;
(3) workpiece place after by stage movement in protective lead room, close protective lead door;
(4) ray is opened, and linear array detector and X-ray production apparatus are accurately controlled by servomotor, and moment maintenance aligns and is synchronized with the movement;
(5) by computer system simultaneous display detected image, and be stored in hard disc of computer;
(6) control the plumbous door of opening protection function after institute's placing articles on objective table has all scanned by imaging system and change a collection of examined workpiece;
CT measuring ability can not use with DR measuring ability simultaneously, and CT detects and comprises the following steps:
(1) open passage protective lead door during CT scan, manually by examined workpiece clamping on high-precision rotary chuck, promoted by elevating mechanism or the rotary chuck that declines to regulate the distance of workpiece for measurement, for adjusting focal length;
(2) protective lead door is closed after Focussing, start to scan, X-ray production apparatus and linear array detector keep motionless, the transversal scanning campaign of object is provided by high-precision flat moving mechanism, after run-down, rotary chuck scans after turning an angle again, until carry out data calculating by computing machine after having scanned.
(3) the whole Surface scan of examined workpiece complete after the plumbous door of opening protection function change next examined workpiece.
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