CN108896583A - A kind of detection device and method of D-ring weld seam - Google Patents
A kind of detection device and method of D-ring weld seam Download PDFInfo
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- CN108896583A CN108896583A CN201810455190.4A CN201810455190A CN108896583A CN 108896583 A CN108896583 A CN 108896583A CN 201810455190 A CN201810455190 A CN 201810455190A CN 108896583 A CN108896583 A CN 108896583A
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- weld seam
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Analysing Materials By The Use Of Radiation (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Abstract
The invention discloses the detection devices and method of a kind of D-ring weld seam, detection device includes D type guide rail, the one side of D type guide rail is equipped with x-ray source movement mechanism, another side is equipped with pieces of cloth mechanism, x-ray source movement mechanism includes the railcar that can be slided along D type guide rail, railcar is equipped with six axis robot, the palm end of six axis robot is equipped with X-ray production apparatus, pieces of cloth mechanism includes crawl frame, the bottom surface of crawl frame is equipped with climbing mechanism, climbing mechanism is equipped with encoder, and patch device and video probe are equipped in the middle part of the bottom surface of crawl frame, and the top surface of crawl frame is equipped with support wheel；Detection method include pieces of cloth, exposure and etc..The present invention optimizes ray detection technique, also has that radiation intensity is low simultaneously, egative film at image height advantage, meet vacuum chamber erecting bed radiation intensity require and RCC-MR specification in the quality requirement of egative film.
Description
Technical field
The present invention relates to technical field of nondestructive testing, and in particular to a kind of detection device and method of D-ring weld seam.
Background technique
Vacuum chamber based on the following fusion reactor is by several as shown in Figure 1, section is enclosed in the vacuum chamber sector 1 of D type shape
Around composition（Vacuum chamber sector shown in FIG. 1 is 22.5 °, and 16 vacuum chamber sectors constitute a vacuum chamber）, in conjunction with Fig. 2, very
Empty room sector 1 includes shell 11 and inner casing 12, bearing rib 13 is connected between shell 11 and inner casing 12, vacuum chamber sector 1 exists
When being combined into vacuum chamber, inevitably there is a certain error in processing and welding process, and in group in the process, these are missed
The size that the accumulation of difference will lead to vacuum chamber welding end surface is not able to satisfy the requirement of narrow gap welding, in order to reduce these errors pair
The influence of narrow gap welding increases compensation ring 14 between sectors, due to compensating the presence of ring 14,1 group of vacuum chamber sector
Clock synchronization will form D-ring weld seam 15 on inner casing 12（Such as two 22.5 ° of set of sectors at 45 ° of sector when, inner casing 12
On will form two pipeline narrow gap D-ring weld seams 15）.
According to the design and construction standard of vacuum chamber《Nuclear device mechanical component design and construction rule》（RCC-MR：2007）
Requirement, this twice D-ring weld seam must using ray carry out volumetric defects detection.
Existing ray detection method is applied to above-mentioned weld seam, and there are problems：
1. D-ring back of weld narrow space, cannot achieve artificial pieces of cloth.Existing mature automation pieces of cloth system is all base
It is designed in magnetic suck principle, and vacuum chamber raw material are ultra-low carbon austenitic stainless steel, it is non-magnetic, limit conventional cloth sheet devices
Application.
2. vacuum-chamber dimensions is huge, manual handling radiographic source carries out detection, and there are inefficiency, radiographic source installation and positioning
Difficult problem, while there is also high altitude operation, operating personnels to be exposed to ray environment because of maloperation for manual handling radiographic source
Risk.
3. the stainless steel structure for this bulky dimensions of vacuum chamber carries out field welding, the sensitivity of film work of existing maturation
Skill generally uses gamma ray projector, and this transillumination technology radiation intensity is big, and negative quality is low, and it is existing to be unable to satisfy vacuum chamber actual installation
To the quality requirement of egative film in field radiation intensity control standard and RCC-MR specification.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, providing one kind can be realized narrow space automation cloth
Piece reduces worker's operating risk, improves negative quality, finally realizes the height of D-ring weld seam on inner casing during vacuum chamber is formed a team
The detection device and method of precision, high efficiency and high quality.
The one side of a kind of detection device of D-ring weld seam, including D type guide rail, D type guide rail is equipped with x-ray source movement mechanism,
Another side is equipped with pieces of cloth mechanism, and x-ray source movement mechanism includes the railcar that can be slided along D type guide rail, and railcar is equipped with six
Axis robot, the palm end of six axis robot are equipped with X-ray production apparatus, and pieces of cloth mechanism includes crawl frame, and the bottom surface of crawl frame is equipped with
Climbing mechanism, climbing mechanism are equipped with encoder, are equipped with patch device and video probe, the top of crawl frame in the middle part of the bottom surface of crawl frame
Face is equipped with support wheel.
It is further described as to above-mentioned technical proposal：
The climbing mechanism includes driven wheel, and driven wheel is engaged on the driving wheel of inchworm motor output shaft, and driven wheel two sides are same
Axis is equipped with crawling wheel, and encoder is arranged on the driven wheel.
It is further described as to above-mentioned technical proposal：
The patch device includes rhombus expansion brackets, and placement head is fixed on the bottom of rhombus expansion brackets.
A kind of detection method of D-ring weld seam, using the detection device of above-mentioned D-ring weld seam to vacuum chamber set of sectors clock synchronization
It is formed by D-ring weld seam with compensation ring to be detected, the vacuum chamber sector includes shell and inner casing, the detection method
Include the following steps：
（1）, prepare：Including being marked in the pieces of cloth location point of D-ring weld seam surfaces externally and internally, pre-exposure ray film, along inner casing spread
If the working performance of D type guide rail, test x-ray source movement mechanism and pieces of cloth mechanism；
（2）, pieces of cloth：Pieces of cloth mechanism is sent into the interlayer of shell and inner casing by the channel reserved from design, control pieces of cloth mechanism fortune
It is dynamic, the coarse positioning to pieces of cloth location point is realized using encoder, realizes the precise positioning to pieces of cloth location point using video probe,
Patch device is discharged after precise positioning, so that film is close to D-ring root of weld arrangement, is completed pieces of cloth；
（3）, exposure：Railcar movement is controlled, X-ray production apparatus is transported to designated position, control six axis robot fortune along D type guide rail
It is dynamic, so that X-ray production apparatus is gone out the surface of the vertical D-ring weld seam of beam mouth, using single wall list shadow transillumination technology, selects suitable parameters, complete
Exposure；
（4）, recycling：Control railcar moves to the reserved outlet of design, completes egative film recycling；
（5）, post-processing：Film processing and egative film evaluation work are completed according to operating instruction.
It is further described as to above-mentioned technical proposal：
The X-ray production apparatus is D3006 Portable X-ray machine.
The present invention is applied in combination by D type guide rail, x-ray source movement mechanism with pieces of cloth mechanism, compared with prior art,
Optimize ray detection technique, also have that radiation intensity is low simultaneously, egative film meets vacuum chamber peace at the advantage of image height
The quality requirement in radiation intensity requirement and RCC-MR specification to egative film is filled, answering based on the following fusion reactor is particularly suitable for
Shell weld seam carries out online X-ray automatic detection in miscellaneous profile double-layer vacuum room, in addition has high degree of automation, may be implemented
It the advantages of remote control, reduces high altitude operation, operating personnel is exposed to the risk of ray environment because of maloperation, and improves
Detection efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is use state diagram of the invention；
Fig. 2 is pieces of cloth mechanism and inside and outside shell assembling structure schematic diagram in the present invention；
Fig. 3 is the assembling structure schematic diagram of D type guide rail and x-ray source movement mechanism in the present invention；
Fig. 4 is the structural schematic diagram of pieces of cloth mechanism in the present invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to Fig. 1, a kind of detection device of D-ring weld seam provided by the invention, including D type guide rail 2, the one of D type guide rail 2
Face is equipped with x-ray source movement mechanism 3, and another side is equipped with pieces of cloth mechanism 4, and in conjunction with Fig. 2 and Fig. 3, x-ray source movement mechanism 3 includes
The railcar 31 that can be slided along D type guide rail 2, railcar 31 are equipped with six axis robot 32（Six axis robot is the prior art, is
A kind of rotation using x, y, z axis and the mobile manipulator operated, it can be achieved that any direction crawl blowing）, six axis machines
The palm end of tool hand 32 is equipped with X-ray production apparatus 33, and in conjunction with Fig. 4, pieces of cloth mechanism 4 includes crawl frame 41, and the bottom surface of crawl frame 41 is set
There is climbing mechanism 42, climbing mechanism 42 is equipped with encoder, is equipped with patch device 43 and video probe in the middle part of the bottom surface of crawl frame 41
44, the top surface of crawl frame 41 is equipped with support wheel 45.
A kind of detection method of D-ring weld seam, using the detection device of above-mentioned D-ring weld seam to vacuum chamber set of sectors clock synchronization
It is formed by D-ring weld seam with compensation ring to be detected, the vacuum chamber sector 1 includes shell 11 and inner casing 12, the detection
Method includes the following steps：
（1）, prepare：Including being marked in the pieces of cloth location point of D-ring weld seam surfaces externally and internally, pre-exposure ray film, along inner casing 12
It is laid with the working performance of D type guide rail 2, test x-ray source movement mechanism 3 and pieces of cloth mechanism 4；
（2）, pieces of cloth：Pieces of cloth mechanism 4 is sent into the interlayer of shell 11 and inner casing 12 by the channel reserved from design, controls pieces of cloth machine
Structure 4 moves, and realizes the coarse positioning to pieces of cloth location point using encoder, realizes the essence to pieces of cloth location point using video probe 44
Certainly position discharges patch device 43 after precise positioning, so that film is close to D-ring root of weld arrangement, completes pieces of cloth；
（3）, exposure：It controls railcar 31 to move, X-ray production apparatus 33 is transported to designated position along D type guide rail 2, controls six axis machines
Tool hand 32 moves, and X-ray production apparatus 33 is made to go out the surface of the vertical D-ring weld seam of beam mouth, and using single wall list shadow transillumination technology, selection is suitable
Parameter completes exposure；
（4）, recycling：Control railcar 31 moves to the reserved outlet of design, completes egative film recycling；
（5）, post-processing：Film processing and egative film evaluation work are completed according to operating instruction.
Embodiment 1
As the optimization explanation to above-mentioned technical proposal：
Climbing mechanism 42 includes driven wheel 411, and driven wheel 411 is engaged on the driving wheel of inchworm motor output shaft, driven wheel 411
Two sides are coaxially provided with crawling wheel 412, and encoder is arranged on driven wheel 411.Purpose is that it is possible to more accurate and quickly real
Now to the coarse positioning of pieces of cloth location point.
Embodiment 2
As the optimization explanation to above-mentioned technical proposal：
Patch device 43 includes rhombus expansion brackets 431, and placement head 432 is fixed on the bottom of rhombus expansion brackets 431.Purpose is, energy
Enough ensure the stability of patch device stretching structure and the rapidity of contraction.
Embodiment 3
Vacuum chamber sector is 22.5 °, and 16 vacuum chamber sectors constitute a vacuum chamber, and the high about 11m in vacuum chamber sector, width are about
6m, thickness about 4m, weight are about 65t, and two 22.5 ° of set of sectors are to the twice D-ring weld seam back at 45 ° of sectors, on inner casing
Face is inside and outside shell spacing 180-280mm, and two sides width is fixed as 300mm, and the D-shaped of maximum height 11m closes the detection in narrow space
Method citing：
It is described that detection method includes the following steps：
Prepare：Eye-catching label is carried out using marking pen in D-ring weld seam surfaces externally and internally before weldering, guarantees that interior external labeling is parallel；Film
Using customization specification vacuum-packed AGFA D4 grade fine grained film, using pre-exposure technology by welding seam No, film making day
The negative informations such as phase are exposed on film in advance, and the film back side adds the shielding of 1mm stereotype by scattered rays；Debug x-ray source fitness machine
D type guide rail 2 is laid on inner casing 12 by structure 3, completes railcar 31, six axis robot 32 and X-ray production apparatus 33（It is portable, model
D3006）Installation And Test, adjust 33 centre distance D-ring welding seam distance 600mm of X-ray production apparatus, by its back side leading plate shield
Back, the pre-exposure ray film of scattering require to be installed on the patch device 43 of pieces of cloth mechanism 4 according to the rules, test pieces of cloth mechanism 4；
Pieces of cloth：The channel pieces of cloth mechanism 4 reserved from design is sent into inside and outside shell interlayer, and control pieces of cloth mechanism 4 moves, and is equipped with and is climbed
Row mechanism 42, the dependence of the crawl frame 41 self power system of idler wheel 45 overcome frictional force to realize the narrow space of D-shaped（Inside and outside shell interlayer）
In up and down motion, coarse positioning is realized by the encoder on climbing mechanism 42 during the motion, is supervised by video probe 44
It controls D-ring back of weld and presets pieces of cloth point realization precise positioning, discharge patch device 43, film is made to be close to D-ring root of weld portion, complete
Root of weld pieces of cloth；
Exposure：It controls railcar 312 to move, X-ray production apparatus 33 is transported to designated position along D type guide rail 2, controls six axis robot
32 movements, X-ray production apparatus 33 go out the vertical D-ring face of weld of beam mouth, and beam mouth adds 1mm copper to filter grenz ray out, improve line matter.It exposes
Optical parameter is：Focal length 600mm, voltage 290kV, electric current 5mA, time 8min；
Recycling：Control pieces of cloth mechanism 4 moves to the reserved outlet of design, removes film, completes egative film recycling；
Post-processing：Film processing and egative film evaluation work are completed in strict accordance with operating instruction.21 ± 1 DEG C of development temperature of control is shown
It the shadow time 5-6 minutes, is fixed 10-12 minutes, rinses 15-20 minutes.Using the dry film of drying box, control drying box temperature is not
More than 50 DEG C.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of detection device of D-ring weld seam, it is characterised in that：Including D type guide rail, the one side of D type guide rail is equipped with x-ray source
Movement mechanism, another side are equipped with pieces of cloth mechanism, and x-ray source movement mechanism includes the railcar that can be slided along D type guide rail, railcar
It is equipped with six axis robot, the palm end of six axis robot is equipped with X-ray production apparatus, and pieces of cloth mechanism includes crawl frame, crawl frame
Bottom surface is equipped with climbing mechanism, and climbing mechanism is equipped with encoder, is equipped with patch device and video probe in the middle part of the bottom surface of crawl frame, climbs
The top surface of row frame is equipped with support wheel.
2. the detection device of D-ring weld seam according to claim 1, it is characterised in that：The climbing mechanism includes driven
Wheel, driven wheel are engaged on the driving wheel of inchworm motor output shaft, and driven wheel two sides are coaxially provided with crawling wheel, and encoder setting exists
On driven wheel.
3. the detection device of D-ring weld seam according to claim 1, it is characterised in that：The patch device includes that diamond shape is stretched
Contracting frame, placement head are fixed on the bottom of rhombus expansion brackets.
4. a kind of detection method of D-ring weld seam, using above-mentioned D-ring weld seam detection device to vacuum chamber set of sectors clock synchronization with
Compensation ring is formed by D-ring weld seam and is detected, and the vacuum chamber sector includes shell and inner casing, it is characterised in that：Including
Following steps：
（1）, prepare：Including being marked in the pieces of cloth location point of D-ring weld seam surfaces externally and internally, pre-exposure ray film, along inner casing spread
If the working performance of D type guide rail, test x-ray source movement mechanism and pieces of cloth mechanism；
（2）, pieces of cloth：Pieces of cloth mechanism is sent into the interlayer of shell and inner casing by the channel reserved from design, control pieces of cloth mechanism fortune
It is dynamic, the coarse positioning to pieces of cloth location point is realized using encoder, realizes the precise positioning to pieces of cloth location point using video probe,
Patch device is discharged after precise positioning, so that film is close to D-ring root of weld arrangement, is completed pieces of cloth；
（3）, exposure：Railcar movement is controlled, X-ray production apparatus is transported to designated position, control six axis robot fortune along D type guide rail
It is dynamic, so that X-ray production apparatus is gone out the surface of the vertical D-ring weld seam of beam mouth, using single wall list shadow transillumination technology, selects suitable parameters, complete
Exposure；
（4）, recycling：Control railcar moves to the reserved outlet of design, completes egative film recycling；
（5）, post-processing：Film processing and egative film evaluation work are completed according to operating instruction.
5. the detection method of D-ring weld seam according to claim 4, it is characterised in that：The X-ray production apparatus be D3006 just
Take Formula X X-ray machine X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455190.4A CN108896583A (en) | 2018-05-14 | 2018-05-14 | A kind of detection device and method of D-ring weld seam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455190.4A CN108896583A (en) | 2018-05-14 | 2018-05-14 | A kind of detection device and method of D-ring weld seam |
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| CN108896583A true CN108896583A (en) | 2018-11-27 |
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| CN201810455190.4A Pending CN108896583A (en) | 2018-05-14 | 2018-05-14 | A kind of detection device and method of D-ring weld seam |
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Application publication date: 20181127 |