CN204374149U - A kind of ultrasonic no damage detection device for detecting metal bar - Google Patents
A kind of ultrasonic no damage detection device for detecting metal bar Download PDFInfo
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- CN204374149U CN204374149U CN201520062636.9U CN201520062636U CN204374149U CN 204374149 U CN204374149 U CN 204374149U CN 201520062636 U CN201520062636 U CN 201520062636U CN 204374149 U CN204374149 U CN 204374149U
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Abstract
The utility model discloses a kind of ultrasonic no damage detection device for detecting metal bar, belonging to ultrasonic no damage detection device technical field.This pick-up unit comprises: the first metal bar fixed part (1), the second metal bar fixed part (2), ultrasonic probe (5) and coupled water water supply installation (3); Described coupled water water supply installation comprises: casing (31), be positioned at the inner tank (32) of described casing (31) and be positioned at the inner water pump (34) of described casing (31), the water inlet (323) of described tank (32) is highly higher than the height of the water inlet (341) of described water pump (34), and the water delivering orifice (342) of described water pump (34) is communicated with the water inlet (323) of described tank (32).This pick-up unit provides a kind of new water coincidence mode---and the full immersion in local is micro-follows water coincidence, realizes fully coupling under the prerequisite few at coupled water consumption, device volume is little; This pick-up unit also achieves the quantification of metal bar defects detection, three dimensional stress, robotization.
Description
Technical field
The utility model belongs to ultrasonic no damage detection device technical field, particularly a kind of ultrasonic no damage detection device for detecting metal bar.
Background technology
Metal bar material particularly copper rod material is widely used in the field such as machine-building, electronic technology.If the inner existing defects of metal bar (as crackle, be mingled with, pore etc.), can affect the use of metal bar.Therefore, in order to avoid the generation of the wasting of resources and accident, usually need to carry out defects detection to metal bar, and ultrasonic no damage detection device is one of usual means for detecting metal bar inherent vice.Under normal circumstances, when utilizing ultrasonic nondestructive testing device to detect, need between ultrasonic probe and measured metal rod surface, to apply the agent of one deck ultrasonic wave-coupled as entrant sound medium, be used for getting rid of the air between probe and measured metal rod surface, ultrasonic wave energy is made effectively to import measured metal rod into, the detection faces of guarantee metal bar there are enough sound intensity transmission rates, to reach the object of detection.
At present, in conventional ultrasonic no damage detection device, usually adopt water as entrant sound medium, and adopt full immersion mode to detect.As shown in Figure 1, Fig. 1 is a kind of ultrasonic no damage detection device of full immersion mode, and this device comprises ultrasonic probe 5X and casing 32X, the open-top of casing 32X, the entirety of measured metal rod 4X is positioned at casing 32X, and ultrasonic probe 5X is positioned at above measured metal rod 4X.When carrying out Ultrasonic NDT, in casing 32X, holding enough coupled waters, making measured metal rod 4X and ultrasonic probe 5X be immersed in coupled water, to realize abundant coupling, and then defects detection being carried out to measured metal rod 4X.
Realizing in process of the present utility model, designer finds at least there is following problem in above-mentioned prior art:
Entirety due to measured metal rod 4X is positioned at casing 32X, and thus the volume of casing 32X is comparatively large, and needs the entirety of measured metal rod 4X to be all immersed in coupled water, so need a large amount of coupled waters in use.
Utility model content
For solving the problems of the technologies described above, the utility model embodiment provides a kind of volume little and the few ultrasonic no damage detection device for detecting metal bar of coupled water consumption.
Specifically, following technical scheme is comprised:
For detecting a ultrasonic no damage detection device for metal bar, this pick-up unit comprises:
First metal bar fixed part, the second metal bar fixed part arranged with described first metal bar fixed part subtend, the ultrasonic probe between described first metal bar fixed part and described second metal bar fixed part, and coupled water water supply installation;
Described coupled water water supply installation comprises: casing, is positioned at the tank of described box house and is positioned at the water pump of described box house;
Described casing have the first opening and the second opening;
Described tank have the 3rd opening and the 4th opening;
The water inlet of described water pump is near the bottom of described casing;
Wherein, the water inlet height of described tank is higher than the height of the water inlet of described water pump, and the water delivering orifice of described water pump is communicated with the water inlet of described tank;
Described ultrasonic probe is connected with described coupled water water supply installation through the second opening and the 4th opening.
Further, described pick-up unit also comprises coupled water water supply installation driver part; Described coupled water water supply installation driver part comprises the second stepper motor, slide unit and web joint; Described web joint and the second stepper motor are arranged on described slide unit, are connected between described coupled water water supply installation and slide unit by web joint.
Further, described slide unit is also provided with photoelectric control limit switch.
Further, described second metal bar fixed part comprises top, slide rail and slide block; Describedly toply be arranged on slide rail by slide block, described slide rail is parallel with described slide unit.
Further, described first metal bar fixed part comprises chuck and the first stepper motor, and described first stepper motor is connected with described chuck.
Further, described ultrasonic probe comprises the first ultrasonic probe and the second ultrasonic probe, described first ultrasonic probe and the second ultrasonic probe are relatively arranged on measured metal rod both sides, and the line of centres of described first ultrasonic probe and the second ultrasonic probe and measured metal rod central axis.
Further, described first ultrasonic probe and the second ultrasonic probe are have the ultrasonic probe launched ultrasound wave and receive ultrasound wave function, i.e. the ultrasonic probe of transceiver.
Further, the first water sealing structure and the second water sealing structure is provided with in described coupled water water supply installation; Described first water sealing structure to be enclosed within measured metal rod and to be positioned at tank outside, and described second water sealing structure to be enclosed within ultrasonic probe and to be positioned at tank inside.
Further, described water pump is provided with flow control valve.
Further, described tank is provided with gap, the height of described gap is higher than the height of the 3rd opening.
Further, in described coupled water water supply installation, be also provided with ultrasonic probe regulate gib screw.
Further, described pick-up unit also comprises base, and described first metal bar fixed part and the second metal bar fixed part are arranged on base.
The beneficial effect of the technical scheme that the utility model embodiment provides:
The ultrasonic no damage detection device that the utility model embodiment provides is when carrying out Ultrasonic NDT, measured metal rod is through the first opening on described casing and the 3rd opening on described tank, thus it is inner to realize one section of measured metal rod being placed in described tank, the coupled water being arranged in casing can be delivered to tank by water pump, coupled water submergence ultrasonic probe in tank and one section of measured metal rod, realize carrying out Ultrasonic NDT to this section of measured metal rod, and then by detecting multistage measured metal rod, the whole detection to measured metal rod can be realized.Due to each submergence one section of measured metal rod, so the small volume of casing, and coupled water consumption is few.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of full immersion water coincidence device in prior art;
Fig. 2 is the schematic diagram of the ultrasonic no damage detection device of the utility model embodiment;
Fig. 3 is the vertical view of the ultrasonic no damage detection device of Fig. 2;
Fig. 4 is the schematic diagram of the coupled water water supply installation of the utility model embodiment;
Fig. 5 is the sectional view in A-A face in Fig. 4;
Fig. 6 is the schematic diagram of ultrasonic probe and coupled water water supply installation annexation in the ultrasonic no damage detection device of the utility model embodiment;
Fig. 7 is the sectional view in A-A face in Fig. 6;
The schematic diagram of Fig. 8 for flowing to from the cross section signal coupled water shown in Fig. 4, wherein:
8a for coupled water is added in coupled water coupled water water supply installation casing,
8b is by coupled water suction water pump,
8c is that coupled water flows in tank through pump outlet,
8d is that the coupled water of tank flows back in casing from the space between measured metal rod and the 3rd opening;
The schematic diagram of Fig. 9 for flowing to from the cross section signal coupled water shown in Fig. 5, wherein:
9a for coupled water is added in coupled water coupled water water supply installation casing,
9b is by coupled water suction water pump,
9c is that coupled water flows in tank through pump outlet,
9d is that the coupled water of tank flows back in casing from the space between measured metal rod and the 3rd opening;
Figure 10 is the schematic flow sheet that signal metal bar defect three dimensional stress detects, wherein:
10a for detect a certain section initial state of measured metal rod,
10b detects after rotating a certain angle to measured metal rod,
10c detects after continuing to rotate a certain angle to measured metal rod,
10d gets back to initial state after measured metal rod rotates 180 °,
10e is after ultrasonic probe moves a certain distance along measured metal rod length direction, detects next section initial angle angle,
10f detects after rotating a certain angle to measured metal rod,
10g is the left view of 10b.
Mark in figure represents respectively:
1, the first metal bar fixed part, the 11, first stepper motor, 12, chuck;
2, the second metal bar fixed part, 21, slide rail, 22, slide block, 23, top;
3, coupled water water supply installation,
31, casing, the 311, first opening, the 312, second opening,
32, tank, the 321, the 3rd opening, the 322, the 4th opening, 323, tank water inlet,
33, flow control valve,
34, water pump, 341, water pump water inlet, 342, pump outlet,
35, the first water sealing structure, 36, gap,
37, ultrasonic probe regulates gib screw, the 38, second water sealing structure;
4, measured metal rod, 41, measured metal rod first end, 42, measured metal rod second end, 43, defect;
5, ultrasonic probe, the 51, first ultrasonic probe, the 52, second ultrasonic probe;
6, coupled water water supply installation driver part,
61, the second stepper motor, 62, slide unit, 63, web joint, 64, photoelectric control limit switch;
7, base;
The casing of 32X, prior art;
The measured metal rod of 4X, prior art;
The ultrasonic probe of 5X, prior art;
Distance bottom h1, defect lower surface to measured metal rod,
H2, defect upper surface to the distance at measured metal rod top,
The size of h3, defect,
The diameter of h4, measured metal rod.
Pore in Fig. 1, Fig. 4 ~ Fig. 9 represents coupled water.
Embodiment
For making the technical scheme of the utility model embodiment and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Refer to Fig. 2 ~ 7.The utility model embodiment provides a kind of ultrasonic no damage detection device for detecting metal bar, it comprises: the first metal bar fixed part 1, the the second metal bar fixed part 2 arranged with described first metal bar fixed part 1 subtend, the ultrasonic probe 5 between described first metal bar fixed part 1 and described second metal bar fixed part 2 and coupled water water supply installation 3; Described coupled water water supply installation 3 comprises: casing 31, is positioned at the tank 32 of described casing 31 inside and is positioned at the water pump 34 of described casing 31 inside; Described casing 31 have the first opening 311 and the second opening 312; Described tank 32 have the 3rd opening 321 and the 4th opening 322; The water inlet 341 of described water pump 34 is near the bottom of described casing 31; Wherein, the water inlet 323 of described tank 32 is highly higher than the height of the water inlet 341 of described water pump 34, and the water delivering orifice 342 of described water pump 34 is communicated with the water inlet 323 of described tank 32; Described ultrasonic probe 5 is connected with described coupled water water supply installation 3 through the second opening 312 and the 4th opening 322.
The principle of work of the ultrasonic no damage detection device of the utility model embodiment is as follows:
When carrying out Ultrasonic NDT, one end of measured metal rod 4 is fixed by the first metal bar fixed part 1, the other end of measured metal rod 4 is fixed by the second metal bar fixed part 2 through after the first opening 311 on described casing 31 and the 3rd opening 321 on described tank 32 successively, and described tank 32 is positioned at the inside of described casing 31 as the part of coupled water water supply installation 3, one section on the length direction of such measured metal rod 4 inside being located in described tank 32, now utilize water pump 34 to be delivered to by the coupled water in water tank 31 in tank 32 and make coupled water submergence by a section on the length direction of described measured metal rod 4, ultrasonic probe 5 is utilized to carry out Non-Destructive Testing to the measured metal rod 4 on this segment length direction.Repeat aforesaid operations, Non-Destructive Testing is carried out to the measured metal rod 4 on multiple lengths direction, the detection to measured metal rod 4 entirety can be realized.
Owing to only needing the measured metal rod 4 of submergence part to the detection of every section of measured metal rod 4, so the small volume of required casing 31, and coupled water consumption is few.
In order to make the principle of work of the ultrasonic no damage detection device of above-mentioned the utility model embodiment clearly, below in conjunction with Fig. 8 and Fig. 9, be further explained the flow direction of coupled water in testing process, wherein, coupled water flows to see the direction in Fig. 8 and Fig. 9 shown in arrow.
As shown in Figure 8 a, first coupled water is added in the casing 31 of coupled water water supply installation 3, now coupled water water level is higher than the water inlet 341 of water pump 34, but the 3rd opening 321 on the first opening 311 on the casing 31 that will pass lower than measured metal rod 4 and tank 32; Fig. 9 a is the sectional view in A-A face in Fig. 8 a.
As shown in Figure 8 b, start water pump 34, coupled water is drawn in water pump 34; Fig. 9 b is the sectional view in A-A face in Fig. 8 b.
As shown in Figure 8 c, after coupled water in water pump 34 is flowed out by water pump 34 water delivering orifice 342, flow in tank 32 by tank 32 water inlet 323, now in tank 32 water level of coupled water can submergence measured metal rod 4 and ultrasonic probe 5, to ensure carrying out smoothly of Ultrasonic Detection; Fig. 9 c is the sectional view in A-A face in Fig. 8 c.
As shown in figure 8d, owing to needing to carry out Non-Destructive Testing to the measured metal rod 4 on multiple lengths direction, therefore, measured metal rod 4 and there is relative motion between coupled water water supply installation 3 and ultrasonic probe 5, the first opening 311 on measured metal rod 4 and casing 31 and can not sealing completely between the 3rd opening 321 on tank 32.Therefore, in Ultrasonic Detection process, the coupled water in tank 32 can be flowed back in casing 31 by the space (because space is less, not illustrating in the drawings) between the 3rd opening 321 on measured metal rod 4 and tank 32.If the coupled water in tank 32 can not submergence measured metal rod 4 and ultrasonic probe 5, then need to utilize water pump 34 again in tank 32, to carry coupled water.Such coupled water just defines the circulation of " casing 31-water pump 34-tank 32-casing 31 ", by such circulation, measured metal rod 4 and ultrasonic probe 5 are immersed in coupled water all the time, make the state being in geo-stationary between coupled water and measured metal rod 4, ultrasonic probe 5.Therefore, the utility model embodiment, on the basis providing a kind of volume is little, coupled water consumption is few ultrasonic no damage detection device, additionally provides a kind of new water coincidence mode---and local is complete, and immersion is micro-follows water coincidence.Fig. 9 d is the sectional view in A-A face in Fig. 8 d.
In above-mentioned pick-up unit, the size of casing 31 and tank 32 does not have strict restriction, but in order to reach the object reducing device volume, as long as the size of tank 32 is more bigger than ultrasonic probe 5, as long as the size of water tank 31 can hold tank 32 and water pump 34.
In above-mentioned pick-up unit, the kind of water pump 34 does not have strict restriction yet, and because coupled water consumption is few, therefore, water pump 34 can be small-sized submersible pump.
In above-mentioned pick-up unit, carry out Non-Destructive Testing to the measured metal rod 4 on multiple lengths direction can be moved by the length direction of coupled water water supply installation 3 along measured metal rod 4 thus be driven connected ultrasonic probe 5 move along the length direction of measured metal rod 4 and realize, therefore above-mentioned pick-up unit also comprises coupled water water supply installation driver part 6; Described coupled water water supply installation driver part 6 comprises the second stepper motor 61, slide unit 62 and web joint 63; Described web joint 63 and the second stepper motor 61 are arranged on described slide unit 62, are connected between described coupled water water supply installation 3 and slide unit 62 by web joint 63.Wherein, the second stepper motor 61 moves on slide unit 62 by driving web joint 63, and then drives coupled water water supply installation 3 and ultrasonic probe 5 to move.Slide unit 62 is for guiding the direction of motion of web joint 63.
In above-mentioned pick-up unit, slide unit 62 is also provided with photoelectric control limit switch 64, for limiting the moving range of described web joint 63.The quantity of photoelectric control limit switch 64 includes but not limited to 2, and the length range that their position can be tested according to measured metal rod 4 regulates.Such as, when arranging two photoelectric control limit switches 64, the starting and ending position that measured metal rod 4 is tested can be arranged on respectively, by limiting the moving range of web joint 63 and then controlling the moving range of coupled water water supply installation 3 and ultrasonic probe 5.
In above-mentioned pick-up unit, second metal bar fixed part 2 can comprise top 23, slide rail 21 and slide block 22, wherein top 23 except playing the effect of fixing measured metal rod second end 42, can also ensure the right alignment of measured metal rod 4 by cooperatively interacting with the first metal bar fixed part 1, namely the center of top 23 will overlap with the central shaft of measured metal rod 4 with the line at the center of chuck 12.Top 23 are arranged on slide rail 21 by slide block 22, and slide rail 21 is parallel with slide unit 62, and slide block 22 can slide on slide rail 21, thus drive top 23 to move on slide rail 21, according to the length of measured metal rod 4, regulate the distance between top 23 and chuck 12, measured metal rod 4 is fixed.
In above-mentioned pick-up unit, described first metal bar fixed part 1 can comprise chuck 12 and the first stepper motor 11, wherein the first stepper motor 11 is connected with described chuck 12, measured metal rod first end 41 fixed by chuck 12, first stepper motor 11 can rotate by drive chuck 12, and then drives measured metal rod 4 to rotate around its central axis.
By measured metal rod 4 around its central axis rotate and ultrasonic probe 5 to move along the length direction of measured metal rod 4 can realize robotization to measured metal rod 4 defect, three dimensional stress, quantification detect.Concrete principle is: detect the two-dimentional radial section of multiple measured metal rod 4 successively, again the position relationship of measured metal rod 4 length direction corresponding with it for the profile of the radial section of described multiple two dimension is passed through data processing software, thus obtain 3-D view.
In above-mentioned pick-up unit, the quantity of described ultrasonic probe 5 does not have considered critical, wherein, a kind of preferred scheme is for arranging two ultrasonic probes, i.e. the first ultrasonic probe 51 and the second ultrasonic probe 52, described first ultrasonic probe 51 and the second ultrasonic probe 52 are relatively arranged on measured metal rod 4 both sides, and described first ultrasonic probe 51 and the line of centres of the second ultrasonic probe 52 and the central axis of measured metal rod 4.
In above-mentioned pick-up unit, the type of described ultrasonic probe 5 does not also strictly limit, and the ultrasonic probe can received for single-shot list also can be the ultrasonic probe of transceiver, namely has the ultrasonic probe launched ultrasound wave and receive ultrasound wave function.Preferred scheme is the ultrasonic probe that the first ultrasonic probe 51 and the second ultrasonic probe 52 are transceiver, cooperatively interacting like this by the two, when measured metal rod 4 relative starting position can be made to rotate 180 °, just complete and the complete cycle of measured metal rod 4 one circumference 360 ° is scanned, improve detection efficiency.
Shown in Figure 10 is a flow process specifically utilizing above-mentioned detection device to detect measured metal rod 4 defect.
Before Ultrasonic Detection starts, first ultrasonic no damage detection device is assembled according to shown in Fig. 2 and Fig. 3, measured metal rod first end 41 clamps by chuck 12, measured metal rod second end 42 is fixed by top 23 through after the first opening 311 on the casing 31 of coupled water water supply installation 3 and the 3rd opening 321 on tank 32, and the first ultrasonic probe 51 and the second ultrasonic probe 52 are through the second opening 312 on casing 31 and the 4th opening 322 on tank 32.Be connected with slide unit 62 by web joint 63 by coupled water water supply installation 3, be connected by chuck 12 with the first stepper motor 11, web joint 63 is connected with the second stepper motor 61.After described ultrasonic no damage detection device assembling, start to detect measured metal rod 4 according to the flow process shown in Figure 10 a ~ 10f.
As shown in Figure 10 a: the driving circuit of the second stepper motor 61 sends gating pulse, second stepper motor 61 rotates corresponding angle, web joint 63 is driven to move corresponding distance along measured metal rod 4 length direction on slide unit 62, the coupled water water supply installation 3 be connected to web joint 63 also along with mobile corresponding distance, thus makes the first ultrasonic probe 51 and the second ultrasonic probe 52 be positioned at a certain section place of measured metal rod 4.Then the driving circuit of the first stepper motor 11 sends gating pulse, and the first stepper motor 11 rotates corresponding angle, and drive chuck 12 to rotate corresponding angle, measured metal rod 4 also rotates respective angles around its central axis thereupon.Now, second ultrasonic probe 52 of transceiver starts to transmit and receive ultrasonic signal, first ultrasonic probe 51 is in halted state, record the second ultrasonic probe 52 transmit and after mistiming t1 between echoed signal, measured metal rod 4 keeps original position motionless, first ultrasonic probe 51 of transceiver starts to transmit and receive ultrasonic signal, and the second ultrasonic probe 52 is in halted state, records transmitting and mistiming t2 between echoed signal of the first ultrasonic probe 51.As shown in Figure 10 g, according to ultrasonic propagation rule, utilize programmed algorithm to calculate defect 43 size of measured metal rod 4 in this position, computing method are as follows:
(1) according to the second ultrasonic probe 52 transmit and mistiming t1 between echoed signal calculates distance h1 bottom defect 43 lower surface to measured metal rod 4, h1=v × t1/2 (wherein v is the velocity of propagation of ultrasound wave in measured metal rod 4, lower same);
(2) according to the first ultrasonic probe 51 transmit and mistiming t2 between echoed signal calculates the distance h2 of defect 43 upper surface to measured metal rod 4 top, h2=v × t2/2;
(3) defect 43 size h3 is calculated, h3=h4-h1-h2 according to the diameter h4 of measured metal rod 4.
After completing the detection to the position shown in Figure 10 a, first ultrasonic probe 51 and the second ultrasonic probe 52 invariant position, measured metal rod 4 arrives the position shown in Figure 10 b around its central axis rotation angle, according to above-mentioned flaw size computing method, calculate the size of the defect 43 of this position of measured metal rod 4.Measured metal rod 4 continues to rotate to the position shown in Figure 10 c, and calculates the size of the defect 43 of this position.After measured metal rod 4 relative starting position rotates 180 °, coordinated by the first ultrasonic probe 51 and the second ultrasonic probe 52 and the complete cycle of measured metal rod 4 one circumference 360 ° has been scanned.Induction and conclusion measured metal rod 4 is time difference value of surveying when same position, be supplied to defect magnitude calculation to use, according to the technology general knowledge of this area, algorithm process is carried out to gained time difference data, try to achieve probe and launch ultrasound wave and the distance between corresponding transmission point in measured metal rod 4 surperficial joining to defect, calculate defect value, obtain the two-dimentional radial section defect profile that measured metal rod 4 quantizes.
After completing scanning to a section, the first stepper motor 11 drives measured metal rod 4 to rotate back into reference position (Figure 10 d).The driving circuit of the second stepper motor 61 sends gating pulse again, second stepper motor 61 rotates corresponding angle, web joint 63 is driven to move corresponding distance along measured metal rod 4 length direction on slide unit 62, the coupled water water supply installation 3 be connected to web joint 63 is also along with mobile corresponding distance, thus make the first ultrasonic probe 51 and the second ultrasonic probe 52 be positioned at next section place (Figure 10 e) of measured metal rod 4, after completing the detection of position shown in Figure 10 e, measured metal rod 4 rotates an angle, arrives the position shown in Figure 10 f.Repeat above-mentioned circular scan and data handling procedure, obtain the two-dimentional radial section defect profile of another measured metal rod 4.The position relationship of measured metal rod 4 length direction corresponding with it for the radial section profile of multiple two dimension is passed through data processing software, analyze the 3 D defects image obtaining whole measured metal rod 4, thus realize three dimensional stress, the quantification of measured metal rod 4 defects detection.
In above-mentioned pick-up unit, in described coupled water water supply installation 3, first water sealing structure 35 and the second water sealing structure 38 can also be set; Described first water sealing structure 35 is enclosed within measured metal rod and to be positioned at tank 32 outside, can prevent coupled water from flowing out casing 31 along measured metal rod 4; Described second water sealing structure 38 is enclosed within ultrasonic probe 5 and to be positioned at tank 32 inner, can prevent coupled water from flowing out casing 31 along measured metal rod 4.First water sealing structure 35 quantity includes but not limited to 2, and the quantity of the second water sealing structure 38 is determined by the quantity of ultrasonic probe 5.First water sealing structure 35 and the second water sealing structure 38 can adopt to foam the water stop gel ring that silicon rubber is made.
In above-mentioned pick-up unit, described water pump 34 is provided with flow control valve 33.Flow control valve 33 may be used for regulating coupled water to enter the speed of tank 32.The speed that coupled water flows out tank 32 is then relevant with the seal degree between the 3rd opening 321 on measured metal rod 4 and tank 32, therefore, can controlling coupled water by flow control valve 33, to enter the speed of tank 32 consistent with the coupled water rate of outflow, reaches the state of mobile equilibrium.
In above-mentioned pick-up unit, can also arrange gap 36 on described tank 32, the height of described gap 36 is higher than the height of described 3rd opening 321.If the feed rate due to water pump 34 is greater than the coupled water rate of outflow and causes water level in tank 32 to raise, after making water level reach the position of gap 36, coupled water flows out from gap 36 to be got back in casing 31, prevents coupled water from overflowing from tank 32 coboundary.
In above-mentioned pick-up unit, in described coupled water water supply installation 3, be also provided with ultrasonic probe regulate gib screw 37, when the diameter of measured metal rod 4 changes, the position readjusting ultrasonic probe 5 is needed also to regulate gib screw 37 to retighten by probe.Ultrasonic probe regulates the quantity of gib screw to include but not limited to 2, and the quantity according to ultrasonic probe 5 is arranged.
In above-mentioned pick-up unit, described pick-up unit can also comprise base 7, can the first metal bar fixed part 1 and the second metal bar fixed part 2 be arranged on base 7, just can realize moving integrally of above-mentioned ultrasonic no damage detection device by movable base plate 7.
In sum, the utility model embodiment on the one hand provide a kind of new water coincidence mode for the ultrasonic no damage detection device detecting metal bar---local is complete to be immersed and micro-ly follows water coincidence, under the prerequisite little at device volume, coupled water consumption is few, make coupled water and ultrasonic probe and metal bar be in relative static conditions, realize fully being coupled; Achieve the quantification of metal bar defects detection, three dimensional stress, robotization on the other hand.
The above is only understand the technical solution of the utility model for the ease of those skilled in the art, not in order to limit the utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. for detecting a ultrasonic no damage detection device for metal bar, it is characterized in that, comprising:
First metal bar fixed part (1), the the second metal bar fixed part (2) arranged with described first metal bar fixed part (1) subtend, is positioned at the ultrasonic probe (5) between described first metal bar fixed part (1) and described second metal bar fixed part (2) and coupled water water supply installation (3);
Described coupled water water supply installation (3) comprising: casing (31), is positioned at the inner tank (32) of described casing (31) and is positioned at the inner water pump (34) of described casing (31);
Described casing (31) have the first opening (311) and the second opening (312);
Described tank (32) have the 3rd opening (321) and the 4th opening (322);
The water inlet (341) of described water pump (34) is near the bottom of described casing (31);
Wherein, the water inlet (323) of described tank (32) is highly higher than the height of the water inlet (341) of described water pump (34), and the water delivering orifice (342) of described water pump (34) is communicated with the water inlet (323) of described tank (32);
Described ultrasonic probe (5) is connected with described coupled water water supply installation (3) through the second opening (312) and the 4th opening (322).
2. pick-up unit according to claim 1, is characterized in that, described pick-up unit also comprises coupled water water supply installation driver part (6);
Described coupled water water supply installation driver part (6) comprises the second stepper motor (61), slide unit (62) and web joint (63); Described web joint (63) and the second stepper motor (61) are arranged on described slide unit (62), are connected between described coupled water water supply installation (3) and slide unit (62) by web joint (63).
3. pick-up unit according to claim 2, is characterized in that, described slide unit (62) is also provided with photoelectric control limit switch (64).
4. pick-up unit according to claim 2, is characterized in that, described second metal bar fixed part (2) comprises top (23), slide rail (21) and slide block (22);
Described top (23) are arranged on slide rail (21) by slide block (22), and described slide rail (21) is parallel with described slide unit (62).
5. pick-up unit according to claim 1, it is characterized in that, described first metal bar fixed part (1) comprises chuck (12) and the first stepper motor (11), and described first stepper motor (11) is connected with described chuck (12).
6. pick-up unit according to claim 1, it is characterized in that, described ultrasonic probe (5) comprises the first ultrasonic probe (51) and the second ultrasonic probe (52), described first ultrasonic probe (51) and the second ultrasonic probe (52) are relatively arranged on measured metal rod both sides, and the line of centres of described first ultrasonic probe (51) and the second ultrasonic probe (52) and the central axis of measured metal rod.
7. pick-up unit according to claim 6, is characterized in that, described first ultrasonic probe (51) and the second ultrasonic probe (52) are for having the ultrasonic probe launched ultrasound wave and receive ultrasound wave function.
8. pick-up unit according to claim 1, is characterized in that, is provided with the first water sealing structure (35) and the second water sealing structure (38) in described coupled water water supply installation (3); Described first water sealing structure (35) is enclosed within measured metal rod and to be positioned at tank (32) outside, and described second water sealing structure (38) is enclosed within that ultrasonic probe (5) is upper and to be positioned at tank (32) inner.
9. pick-up unit according to claim 1, is characterized in that, described water pump (34) is provided with flow control valve (33).
10. pick-up unit according to claim 1, is characterized in that, described tank (32) is provided with gap (36), and the height of described gap (36) is higher than the height of the 3rd opening (321).
11. pick-up units according to claim 1, is characterized in that, be also provided with ultrasonic probe and regulate gib screw (37) in described coupled water water supply installation (3).
12. pick-up units according to claim 1, it is characterized in that, described pick-up unit also comprises base (7), and described first metal bar fixed part (1) and the second metal bar fixed part (2) are arranged on base (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520062636.9U CN204374149U (en) | 2015-01-29 | 2015-01-29 | A kind of ultrasonic no damage detection device for detecting metal bar |
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| CN201520062636.9U CN204374149U (en) | 2015-01-29 | 2015-01-29 | A kind of ultrasonic no damage detection device for detecting metal bar |
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| CN204374149U true CN204374149U (en) | 2015-06-03 |
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| CN201520062636.9U Expired - Fee Related CN204374149U (en) | 2015-01-29 | 2015-01-29 | A kind of ultrasonic no damage detection device for detecting metal bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535654A (en) * | 2015-01-29 | 2015-04-22 | 太原工业学院 | Ultrasonic non-destructive detection device for detecting metal rod |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535654A (en) * | 2015-01-29 | 2015-04-22 | 太原工业学院 | Ultrasonic non-destructive detection device for detecting metal rod |
| CN104535654B (en) * | 2015-01-29 | 2017-06-16 | 太原工业学院 | A kind of ultrasonic no damage detection device for detecting metal bar |
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