CN104535653B - A kind of hole type parts inner hole defect phased array ultrasonic detection device - Google Patents
A kind of hole type parts inner hole defect phased array ultrasonic detection device Download PDFInfo
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- CN104535653B CN104535653B CN201510026362.2A CN201510026362A CN104535653B CN 104535653 B CN104535653 B CN 104535653B CN 201510026362 A CN201510026362 A CN 201510026362A CN 104535653 B CN104535653 B CN 104535653B
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Abstract
The invention discloses a kind of hole type parts inner hole defect phased array ultrasonic detection device, the phased array ultrasonic detection device includes：Probe locating device, phased array supersonic probe (7), signal processing apparatus, detection container (8), stand (9), the detection container (8) and the probe locating device are installed on the stand (9), and the probe locating device includes longitudinal sliding block (1), transverse slider (2), end slipway (3), transverse slipway (4), drive link (5), probe clip (6).The advantage of the invention is that, the supersonic detection device is detected using water seaoning to workpiece, avoid probe workpiece between because couplant defective coupling cause intensity of acoustic wave to reduce the problem of, improve the stability of system, reduce the influence of human factor, for some shapes it is special and meanwhile again be difficult determine test position hole type parts, such as gear, impeller, engine cylinder-body detection, there is provided a kind of new solution method.
Description
Technical field
The present invention relates to field of non destructive testing, and in particular to the phased array ultrasonic detection field of hole type parts.
Background technology
Engine cylinder-body is a part important in engine whole system, in work as a kind of typical hole type parts
Easily occurs the phenomenon of leak or oil leak in work, it is due to that cylinder body has crack defect the reason for these failures occur, due to it
Material is special, and directly it is changed, and cost is too high, does not meet the strategy of sustainable development, and it is carried out to remanufacture reparation then
Cost is largely saved.For the object clearly to be repaired, remanufacture repair before to cylinder body defect it is qualitative then
Seem particularly significant, therefore Non-Destructive Testing has played very big effect.
Five conventional big lossless detection methods mainly have Magnetic testing, EDDY CURRENT, Liquid penetrant testing, ray detection, ultrasound
Detection, these technical methods can complete the detection on the surface to workpiece, near surface and internal flaw, but their application
With limitation, it is difficult to be detected to complex component, with requirement more and more higher of the industrial circle to Non-Destructive Testing, phased array
Ultrasonic detecting technology starts to be applied to industrial detection from medical domain, and rapidly becomes a kind of efficient, quick detection method.
At present, phased array ultrasonic detection has been successfully applied to the complex components such as pipe welding seam, bent axle, turbine blade
Detection, in actually detected generally by couplant by probe, voussoir, workpiece link together to specific region carry out B
(S) scan, defective locations are determined by display image.But for engine cylinder-body, its is complicated, due to its table
The particularity of face shape, conventional phased array detection means, detection method can not all carry out comprehensive scanning to engine, especially
It is that the specific region of engine can not be scanned, or even probe can not be placed, this just ultrasound inspection to engine defect
Survey brings very big difficulty.
The content of the invention
In view of the above-mentioned problems, the present invention is desirable to provide a kind of hole type parts that can be used in carrying out engine Non-Destructive Testing
Endoporus phased array ultrasonic detection device, the device can carry out Non-Destructive Testing to the workpiece of various labyrinths, and can keep away
Exempt from the coupled problem brought between probe and workpiece by the uniformity of couplant, improve the stability of detecting system, reduce artificial
The influence of factor.The present invention for some special shapes and meanwhile again be difficult determine test position hole type parts, as gear, impeller,
Engine cylinder-body etc., there is provided a kind of new Non-Destructive Testing solves method.
Specifically, the present invention provides a kind of hole type parts inner hole defect phased array ultrasonic detection device, it is characterised in that
The phased array ultrasonic detection device includes：Probe locating device, phased array supersonic probe, signal processing apparatus, detection container,
Stand, the detection container and the probe locating device are installed on the stand, and the probe locating device includes vertical
To sliding block, transverse slider, end slipway, transverse slipway, drive link, probe clip, the end slipway is fixed on described vertically
On frame, the longitudinal sliding block matches with the end slipway, is enclosed on the end slipway, and can be sliding along the longitudinal direction
Road is slided in vertical direction, and one end of the transverse slipway is horizontally fixed on the longitudinal sliding block, also, described laterally sliding
The transverse slider is installed, the transverse slider matches with the transverse slipway and can be on the transverse slipway on road
Level is slided, and one end of the drive link is arranged on the transverse slider, and the probe clip is arranged on the another of the drive link
On one end, the phased array supersonic probe is arranged on the probe clip, and the transverse slipway is suspended in above the detection container,
And the lower end of the drive link can extend into the detection container；There is ultrasound conductive medium in the detection container,
During the supersonic detection device work, the phased array supersonic probe and hole type parts to be measured are invaded and are situated between in the ultrasonic conducting
In matter, and phased array supersonic probe can be extend into the diameter parallel of the endoporus of the hole type parts to be measured it is described
In the endoporus of hole type parts.
In a kind of preferred implementation, the drive link is hollow structure, and the phased array supersonic probe passes through data
Connecting line is connected with the signal processing apparatus, and the hollow cavity of the data connecting line through the telescoping tube is connected to institute
State signal processing apparatus.
In another preferred implementation, the phased array supersonic probe is 180 ° of semicircle probes, and it has 32
Chip, the radius of the phased array supersonic probe are less than the internal bore radius of the hole type parts to be measured.
In another preferred implementation, one end of the drive link is fixed on the transverse slider by bearing,
And the drive link can 360 ° rotate to control the scanning range of phased array supersonic probe.
In another preferred implementation, the signal processing apparatus include phased array supersonic defectoscope and with the phase
Control the computer of battle array reflectoscope connection.
In another preferred implementation, the phased array supersonic defectoscope, there are 128 passages, can swash simultaneously
Send out 32 chips.
In another preferred implementation, signal processing apparatus can receive the output letter of the phased array supersonic probe
Number, carrying out flaw detection is carried out based on the output signal, and export corresponding testing result.
In another preferred implementation, in addition to the first stepper motor and the second stepper motor, first stepping
Motor is arranged on inside the longitudinal sliding block, and can drive longitudinal sliding block vertical sliding on the end slipway；
Second stepper motor is arranged on inside the transverse slider, and can drive the transverse slider in the transverse slipway
Upper horizontal slip.
In another preferred implementation, the phased array ultrasonic detection device also includes stepper motor driver, institute
State stepper motor driver respectively with first stepper motor and the second stepper motor to be connected, for driving described respectively
One stepper motor and the second stepper motor.
In another preferred implementation, first gear, the end slipway are connected with first stepper motor
On the first rack is installed, the first gear is matched with first rack and is engaged each other；Second stepper motor
On be connected with second gear, the second rack is installed, the second gear matches with second rack on the transverse slipway
And it is engaged each other.
In another preferred implementation, the phased array supersonic each wafer width of popping one's head in is 0.5~5mm, chip
Length is 10~20mm, and wafer gap is 0.1~0.5mm.Preferably, the width of the chip and the ratio of length are 1/8.This
The inventor of application has found that the ultrasonic signal quality obtained using the ratio will averagely be believed apparently higher than other ratios are used
Make an uproar than for common more than 2 times.
In another preferred implementation, in each scan period, the phased array supersonic probe is first along clockwise
Direction is rotated by 360 °, further along 360 degree of counterclockwise rotates.This is due to the rotation of ultrasonic probe when carrying out ultrasound detection
Transfer from a team to another and bring certain influence to testing result.Inventors herein have recognized that this influence is present with the direction of rotation of probe
Necessarily associate, in order to overcome this influence, the ultrasonic probe of the application when rotated, first rotates certain angle in first direction
Degree (360,720 etc. by that analogy, it is highly preferred that being 360*n+5 degree, signal can be subtracted into marginal portion in this case,
The influence of marginal portion can be eliminated.), then, equal angular is rotated in the opposite direction, then, pass through the processing in computer
Device, first time is scanned and scanned for the second time the signal in same position obtained and is overlapped averaging, is so obtained
Signal overcome the influence of rotation.
In addition, it is because when detecting hole type parts that why non-circular using the probe of semicircle the present invention is, pop one's head in
Need to be bonded hole wall as far as possible.If using the probe of other shapes, when probe is rotated or moved up and down, can bring in hole
The larger fluctuation of water, and semicircle probe is used, provide enough spaces for the backflow of water.
Beneficial effect
(1) present invention solves complex-shaped while is difficult to determine inspection again using the phased array supersonic probe of unique design
The problem of hole type parts inner hole defect detection difficult that location is put；(2) detection environment of the invention be in water avoid probe with
The problem of causing intensity of acoustic wave to reduce because of couplant defective coupling between workpiece, detect repeatability height, signal stabilization；(3) originally
Phased array supersonic probe is fixed at probe clip by invention, is controlled and popped one's head in by probe locating device, ensure that in detection process
The stability of probe, the influence of human factor is reduced, improve the reliability of detection.
Brief description of the drawings
Fig. 1 is the overall signal of the hole type parts inner wall defect phased array ultrasonic detection device of one embodiment of the invention
Figure；
Fig. 2 is the schematic top plan view of the phased array ultrasonic detection device in embodiment illustrated in fig. 1；
Fig. 3 is the schematic side view of the phased array ultrasonic detection device in embodiment illustrated in fig. 1；
Fig. 4 is the slideway of phased array ultrasonic detection device and sliding block operation principle schematic diagram in the embodiment；
Fig. 5 is the gear testing schematic diagram of phased array ultrasonic detection device in the embodiment；
Fig. 6 is the circumference linear array signal of the phased array supersonic probe of phased array ultrasonic detection device in the embodiment
Figure；
Fig. 7 is the scheme of installation that phased array ultrasonic detection device is popped one's head in the embodiment；
Wherein, the implication of reference is as follows in figure：
1：Longitudinal sliding block；2：Transverse slider；3：End slipway；4：Transverse slipway；5：Drive link；6：Probe clip；7：Probe；
8：Water tank；9：Stand；10：Wire；11：Signal processing apparatus；12：Stepper motor；13：Rack；14：Gear.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail：The present embodiment is only used for the specific of the present invention
Being described property of implementation illustrates, so that those skilled in the art more fully understand present disclosure, but the guarantor of the present invention
Shield scope is not limited to following embodiments, every technical solution of the present invention to be modified or equivalent substitution, without departing from this hair
The spirit and scope of bright technical scheme, it all should cover in the scope of the present invention.
Fig. 1-3 shows the main view, vertical view and left view view of the phased array ultrasonic detection device of the present embodiment.As schemed
Show, the phased array ultrasonic detection device includes：Longitudinal sliding block 1, transverse slider 2, end slipway 3, transverse slipway 4, drive link 5,
Probe clip 6, phased array supersonic probe 7, water tank 8, stand 9, signal processing apparatus 11, stepper motor 12, rack 13, gear 14.
Wherein, longitudinal sliding block 1, transverse slider 2, end slipway 3, transverse slipway 4, drive link 5, probe clip 6, stepper motor 12, rack
13rd, gear 14, it may be collectively referred to as probe locating device.In the present embodiment, signal processing apparatus 11 is using collection phased array supersonic
Defectoscope and special-purpose software are in the integrated computer of one.Or signal processing apparatus 11 can include discrete phased array supersonic
Defectoscope and the computer with ultrasonic signal processing ability.The phased array supersonic defectoscope used in the present embodiment has 128
Individual passage, 32 chips can be excited simultaneously.Conventional ultrasound detection and can be completed and complete phased array detection, connection probe
It is connected with the signal wire of defectoscope along drive link by transverse slider with integrated computer, special-purpose software and phased array defectoscope
The supporting processing that can preferably complete to flaw indication, display, testing result is accurate and visual, and (processing of ultrasonic signal is using normal
Advise software to carry out, I will not elaborate).
As can be seen from Figure 1 water tank 8 is positioned on stand 9, and end slipway 3 is vertically fixed on the side of stand 9,
Longitudinal sliding block 1 is enclosed on end slipway 3, is matched with end slipway 3.Referring to Fig. 3, there is a tooth-arranging strip on the side of vertical slideway
13, rack is uniformly arranged from top to bottom, and gear 14 is arranged on longitudinal sliding block 1 by bearing, can be rotated relative to sliding block.One
Individual stepper motor 12 and gear 14 be fixed together can drive gear 14 rotate.Rack 13 and gear 14 are engaged each other, so as to
When gear 14 when being rotated by, can drive longitudinal sliding block 1 to move up and down in stepper motor.
As illustrated in fig. 1 and 2, one end of transverse slipway 4 is horizontally fixed on longitudinal sliding block 3, because longitudinal sliding block 1 is with indulging
It is fitted close to slideway 3, the keep level of transverse slipway 4 can be ensured.Transverse slider 2, transverse slider are installed on transverse slipway 4
2 are enclosed on transverse slipway 4, are matched with transverse slipway 4.And another stepper motor 12 and tooth are installed on transverse slider 2
14 are taken turns, another rack 13 is installed on transverse slipway 4, the rack and pinion 14 also occlusion matching each other, the energy of stepper motor 12
Enough drive gears 14 rotate, and when gear 14 rotates by the snap-in force with rack 13, can drive transverse slider 2 relative to horizontal stroke
Slided to slideway 4 is horizontal.The cooperation between gear 14 and rack 13 is depicted in Fig. 4 in more detail.
With continued reference to Fig. 1-3, the upper end of drive link 5 is vertically mounted on transverse slider 2, and probe clip 6 is arranged on transmission
On the lower end of bar 5.Phased array supersonic probe 7 is arranged on probe clip 6, and transverse slipway 4 is suspended in the top of water tank 8, and drive link 5
Lower end can extend into water tank 8.Ultrasound conductive medium is housed in water tank 8, in the present embodiment, is situated between using water as conduction
Matter.When supersonic detection device works, phased array supersonic probe 7 and hole type parts to be measured (are the cylinder of engine in the present embodiment
Body or perforated gear) invade in ultrasound conductive medium.
Fig. 5 shows the situation detected to perforated gear.The hole of hole type parts is placed upwards, some hole is entered
During row detection, first by the elevated height of longitudinal sliding block to highest, the position of transverse slider is then adjusted, visits phased array supersonic
Gaging hole is treated in first 7 alignment, then reduces the height of longitudinal sliding block so that phased array supersonic probe 7 can be with hole type parts to be measured
It extend into the endoporus of hole type parts to the diameter parallel of endoporus.
The one end of drive link 5 can be removably secured on transverse slider 2 by bearing, so that drive link 5 can
360 ° rotate to control the scanning range of phased array supersonic probe 7.I.e., it is possible to phased array is driven to surpass by the rotation of drive link 5
Sonic probe 7 rotates relative to hole type parts, carries out ultrasonic scanning.In the present embodiment, drive link 5 is hollow structure, phased array
Ultrasonic probe 7 is connected by data connecting line with signal processing apparatus, and the hollow cavity of data connecting line through drive link connects
It is connected to signal processing apparatus.Therefore, the signal of ultrasonic scanning can be transferred back in signal processing apparatus by data connecting line, letter
The waveform of number processing unit based on ultrasound echo signal carries out carrying out flaw detection.
Fig. 6 then shows the side structure schematic view of probe, in order to clearly represent the pass between each chip
It is to draw whole chips in Fig. 6, simply schematically draw a part.
In the present embodiment, as shown in Figure 5 and Figure 6, phased array supersonic probe 7 is using 180 ° of semicircle probes, phased array
The radius of ultrasonic probe 7 is less than the internal bore radius of hole type parts to be measured.Specifically, probe uses piezoelectric chip, the row of chip
Row mode is circumference linear array, and chip number can be chosen between 16~64 and (32 chips be chosen in the present embodiment), brilliant
Piece width is 0.5~5mm, and chip length is 10~20mm, and wafer gap is 0.1~0.5mm, can realize sound wave deflection and
Focus on, the requirement of water seaoning detection can be met, the size of its radius is related to the circular cylinder radius of detected cylinder body, than cylinder body cylinder
Radius is smaller, the placement popped one's head in detection as shown in figure 5, gap be present between probe 7 and examined workpiece 12, in gap using water as
Medium.
In the present embodiment, the material of stand 9 is stainless steel, and its size is 1.5 × 1.0 × 0.1 (m), dead weight
It disclosure satisfy that the requirement of detection.Longitudinal sliding block 1, transverse slider 2, end slipway 3, transverse slipway 4, biography in probe locating device
Material is that thermal coefficient of expansion is low, resistant to elevated temperatures metal material used by lever 5 and probe clip 6.Preferably, the longitudinal direction is sliding
Road length is 1.5m.Preferably, the transverse slipway length is 1m.
Stepper motor 12 built in longitudinal sliding block and transverse slider difference, the rotation of stepper motor pass through stepping electricity by computer
Machine driver control, it can realize and be precisely located, as shown in figure 4, stepper motor band moving gear 14 rotates, gear 14 and slideway
In rack 13 engage, gear 14 on rack 13 rotate can the movement with movable slider, so as to adjust the specific position of probe
Put.
The material of the drive link is stainless steel, and its operation principle is as shown in fig. 7, one end of drive link is fixed on horizontal cunning
In the bearing of block, and it is limited by snap ring and moved up and down, two stepper motors are controlled by computer, pass through nibbling between gear
Close and power is transmitted to drive link, so that drive rod rotation.
As shown in fig. 7, the material of the probe clip is stainless steel, its one end is fixed on drive link 5, there is one at the other end
Rectangular recess 20, insert probe bracket 21 in groove 20 in detection fixes probe by fixing nut 22.
The detection means of the present invention is placed or is fixed on stand at work, by water tank, then by engine to be measured
Cylinder body is placed in water tank, is rotated the dedicated probe matched with the hole in cylinder body, is fixed on probe clip, according to tested work
The size of part endoporus, the position of probe and scanning range are determined by adjusting transverse slider, longitudinal sliding block and drive link,
After probe is fixed, cylinder body is detected using water seaoning, during detection can up and down, left and right adjustment probe completion pair
The detection of cylinder body, signal is handled and analyzed by signal processing apparatus.
Although the principle of the present invention is described in detail above in conjunction with the preferred embodiments of the present invention, this area skill
Art personnel are it should be understood that above-described embodiment is only the explanation to the exemplary implementation of the present invention, not to present invention bag
Restriction containing scope.Details in embodiment is simultaneously not meant to limit the scope of the invention, in the spirit without departing substantially from the present invention and
In the case of scope, any equivalent transformation based on technical solution of the present invention, simple replacement etc. are obvious to be changed, and is all fallen within
Within the scope of the present invention.
Claims (9)
- A kind of 1. hole type parts inner hole defect phased array ultrasonic detection device, it is characterised in that the phased array ultrasonic detection dress Put including：Probe locating device, phased array supersonic probe (7), signal processing apparatus, detection container (8), stand (9), the spy Xylometer (8) and the probe locating device are installed on the stand (9), and the probe locating device includes longitudinal sliding block (1), transverse slider (2), end slipway (3), transverse slipway (4), drive link (5), probe clip (6), the end slipway (3) are perpendicular Directly it is fixed on the stand (9), the longitudinal sliding block (1) matches with the end slipway (3), is enclosed on the end slipway (3) on, and can be slided along the end slipway (3) in vertical direction, one end of the transverse slipway (4) is flatly solid It is scheduled on the longitudinal sliding block (3), also, the transverse slider (2) is installed on the transverse slipway (4), it is described laterally sliding Block (2) is matched with the transverse slipway (4) and horizontal on the transverse slipway (4) can slided, the drive link (5) One end is arranged on the transverse slider (2), and the probe clip (6) is arranged on the other end of the drive link (5), the phase Battle array ultrasonic probe (7) is controlled to be arranged on the probe clip (6), the transverse slipway (4) is suspended in above the detection container (8), And the lower end of the drive link (5) can extend into the detection container (8)；In the detection container (8) there is ultrasound to pass Medium is led, when the supersonic detection device works, the phased array supersonic probe (7) and hole type parts to be measured are invaded in institute State in ultrasound conductive medium, and phased array supersonic probe (7) can be with the axis of the endoporus of the hole type parts to be measured Abreast it extend into the endoporus of the hole type parts, in each scan period, the phased array supersonic probe (7) is first along suitable Clockwise is rotated by 360 °, and further along 360 degree of counterclockwise rotates, then, first time scanning and second of scanning are obtained The signal in same position be overlapped averaging, to overcome the influence of rotation, the phased array supersonic defectoscope (10), With 128 passages, 32 chips can be excited simultaneously, each wafer width is 0.5~5mm, and chip length is 10~20mm, Wafer gap is 0.1~0.5mm, and the width of the chip and the ratio of length are 1/8.
- 2. hole type parts inner hole defect phased array ultrasonic detection device according to claim 1, it is characterised in that the biography Lever (5) is hollow structure, and the phased array supersonic probe (7) is connected by data connecting line with the signal processing apparatus Connect, the hollow cavity of the data connecting line through the drive link (5) is connected to the signal processing apparatus.
- 3. hole type parts inner hole defect phased array ultrasonic detection device according to claim 1, it is characterised in that the phase It is 180 ° of semicircle probes to control battle array ultrasonic probe (7), has 32 chips, and the radius of the phased array supersonic probe (7) is less than The internal bore radius of the hole type parts to be measured.
- 4. hole type parts inner hole defect phased array ultrasonic detection device according to claim 1, it is characterised in that the biography One end of lever (5) is fixed on the transverse slider (2) by bearing, and the drive link (5) can 360 ° rotate with Control the scanning range of the phased array supersonic probe (7).
- 5. hole type parts inner hole defect phased array ultrasonic detection device according to claim 1, it is characterised in that the letter Number processing unit includes phased array supersonic defectoscope (10) and the computer (11) being connected with the phased array supersonic defectoscope.
- 6. hole type parts inner hole defect phased array ultrasonic detection device according to claim 1, it is characterised in that at signal Reason device can receive the output signal of the phased array supersonic probe (7), and carrying out flaw detection is carried out based on the output signal, and And the corresponding testing result of output.
- 7. hole type parts inner hole defect phased array ultrasonic detection device according to claim 1, it is characterised in that also include First stepper motor and the second stepper motor, first stepper motor are arranged on the longitudinal sliding block (1) inside, and can Drive the longitudinal sliding block (1) vertical sliding on the end slipway (3)；Second stepper motor is arranged on the transverse direction Sliding block (2) is internal, and can drive the transverse slider (2) is horizontal on the transverse slipway (4) to slide.
- 8. hole type parts inner hole defect phased array ultrasonic detection device according to claim 7, it is characterised in that the phase Control battle array supersonic detection device also includes stepper motor driver, the stepper motor driver respectively with first stepper motor It is connected with the second stepper motor, for driving first stepper motor and the second stepper motor respectively.
- 9. hole type parts inner hole defect phased array ultrasonic detection device according to claim 8, it is characterised in that described First gear is connected with one stepper motor, the first rack is installed on the end slipway, the first gear and described the One rack is matched and is engaged each other；Second gear is connected with second stepper motor, is provided with the transverse slipway Second rack, the second gear are matched with second rack and are engaged each other.
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| CN108196029A (en) * | 2018-03-02 | 2018-06-22 | 绵阳金泰机械设备制造有限公司 | A kind of metal parts defect detecting system and restorative procedure |
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