CN201569644U - Clamping device of manual ultrasonic detection probe of large-sized shaft class forged piece - Google Patents

Abstract

The utility model discloses a clamping device of a manual ultrasonic detection probe of a large-sized shaft class forged piece, which mainly comprises a push rod, a probe, a magnetic roller, an inner sleeve barrel, an outer sleeve barrel and a bottom sleeve barrel. When the device is used for carrying out detection, the entire device is more stably and forcefully adsorbed on a forged piece to be detected by the magnetic roller at the bottom of the device, the probe is accurately positioned under the function of spring force, and the probe better contacts with the piece to be detected simultaneously. In the entire detection process, the magnetic roller is controlled to drive the probe to move for detection by the free swing of a telescopic and adjustable connecting rod. By adopting the device to detect the large-sized shaft class forged piece, the speed of manual detection is greatly enhanced, the labor strength of the detection personnel is reduced, the favorable coupling of the probe and a detection interface of the forged piece can also be ensured, and the accuracy and the reliability of a detection result are ensured. The utility model has the characteristics of simple structure, strong versatility, lower cost and the like and can be widely used in the manual ultrasonic detection of small-lot large-sized shaft class forged pieces.

Description

The clamping device of the manual ultrasonic inspection probe of a kind of macrotype axes series forging

Technical field

The utility model relates to a kind of unit clamp of ultrasonic inspection probe, particularly a kind of clamping device of its detection probe when being used for the bigger axle class A of geometric unitA of diameter and carrying out manual Ultrasonic Detection.

Background technology

The macrotype axes series forging generally has shape singularity and quality requirements than characteristics such as height, and difficulty is bigger in moulding and quality assurance, also requires to carry out the quality that full ultrasonic inspection guarantees product in process of production.The size and the weight of macrotype axes series forging are all bigger simultaneously, if adopt the automatic ultrasonic detection system to detect, often need to design special large-scale clamping device and ultrasound acquisition system, cost is higher with respect to the production of short run, versatility is little, therefore in actual production still based on manual Ultrasonic Detection, promptly the macrotype axes series forging is detected by artificial directly hand-held detection probe, selection and request for utilization to detection probe are to carry out according to regulation in China's industry standard " heavy-duty machinery general technical specifications-forged steel pieces Non-Destructive Testing ", promptly adopt 2Mhz～2.5MHz on Tan Tou the selection principle, the normal probe of wafer diameter 10～30mm, the refraction angle of angle probe should be 35 °～70 °, and effective chip area of angle probe should be 20mm ²～625mm ²According to standard code, probe moves to rare 15% coincidence at every turn in the detection, to guarantee to finish the whole forging of complete scanning, and must not surpass 150mm/s during manual operations, the ultrasonic inspection probe of this regulation, with respect to whole forging, the probe wafer size is less, the testing staff needs hand hold transducer constantly to move detection back and forth according to standard code on whole detection faces during detection, to judge testing result simultaneously, when forging is big, be subjected to the restriction testing staff of brachium even the eminence of need standing just can finish detection, to guarantee that simultaneously each probe moves 15% and overlaps area, this often need tens in addition hundreds of just can finish the detection of whole forging.So not only increased the labour intensity of testing staff's work greatly, also can bring potential safety hazard, in addition owing to have now when manually detecting, probe tip is directly to contact with measured piece, cause the wearing and tearing of probe end face easily, also be difficult to contact force and coupling effect between assurance probe and the workpiece, cause the raising of False Rate.Therefore,, many disadvantageous human factors can be avoided,, the accuracy of testing result can also be effectively improved significantly improving detection efficiency simultaneously to manual ultrasonic probe design clamping device.

The utility model content

The purpose of this utility model is to provide the clamping device of the manual ultrasonic inspection probe of a kind of macrotype axes series forging.Shortcomings such as it can be by manually carrying out the detection of macrotype axes series forging fast, and the existing automatic ultrasonic of solution detects the high and manual Ultrasonic Detection inefficiency of cost, labour intensity is big, and is inaccurate.

The purpose of this utility model is achieved through the following technical solutions, and the clamping device of the manual ultrasonic inspection probe of macrotype axes series forging is characterized in that it is to be made of push rod, bolt, spring, probe and inside and outside and three sleeves in bottom; The straight bar section retractable of push rod, its jaw end are movably connected on the barrel of outer sleeve, have through hole on the top end cover of outer sleeve, and the barrel bottom surface is along circumferentially being provided with magnetic rollers; Inner sleeve inserts wherein from the top end cover hole of outer sleeve, the top coupling bolt of inner sleeve, and the diameter of bolt is provided with probe greater than outer sleeve top end cover through-hole diameter in the inner sleeve, and probe wire is drawn from the through hole of inner sleeve top bolt; The inner sleeve bottom connects bottom sleeves, and the bottom surface of bottom sleeves has and is used to the through hole of popping one's head in and detecting, and the bottom surface of bottom sleeves should exceed the magnetic rollers of outer sleeve bottom surface; Between the barrel of inside and outside sleeve spring is set, by outer sleeve top end cover and bottom sleeves upper surface with spring axial limiting between the barrel of inside and outside sleeve.

The utility model is when detecting the macrotype axes series forging, the magnetic rollers of clamping device bottom can make whole device more effectively be adsorbed on the forging, make the spring between the bottom sleeves top extruding inside and outside sleeve wall, probe is under the reacting force of spring, all the time guarantee to have downward pressure, for make probe when detecting and measured piece be coupled better, improve the accuracy of testing result, the utility model also is provided with elastic film at the front end of probe, be marked with abundant glycerine in the film, to guarantee that probe end places glycerine fully, when forging (requires after mechanical property thermal treatment, the finishing capable Ultrasonic Detection of advancing that is shaped) during surface irregularity, by the elastic telescopic of membrane structure can guarantee to pop one's head in good coupling with member.The magnetic rollers of bottom of device also can play the telltale mark effect, it can freely swing by the connecting rod of scalable adjusting, the control magnetic rollers drives probe and moves detection, the location (forged shaft) of guaranteeing at every turn to pop one's head in axial and circumferential, make 15% overlapping of to guarantee well in the mobile testing process of each probe to stipulate in the industry standard

The utility model compared with prior art its remarkable advantage is: can guarantee that probe and forging detect the good coupling at interface, the variation of probe contact force can be controlled in the very little scope, guarantees effective contact area of probe simultaneously; Can significantly improve detection efficiency, Scanning speed can improve 1～1.5 times when guaranteeing the scanning positional precision, the effect of expansion link makes the testing staff not move around can finish long scanning apart from large piece, significantly reduce its labour intensity, make it can more be absorbed in the detection of defective waveform, guarantee to detect accuracy, this apparatus structure is simple simultaneously, highly versatile, lower cost is applicable to the quick manual Ultrasonic Detection of multiple macrotype axes series forging.

Concrete structure of the present utility model is provided by the following drawings and embodiment.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram of the clamping device of the manual ultrasonic inspection probe of macrotype axes series forging described in the utility model.

Fig. 2 is the polycrystalline substance synoptic diagram of the clamping device of the manual ultrasonic inspection probe of the utility model macrotype axes series forging.

Embodiment

Below in conjunction with accompanying drawing, concrete structure of the present utility model is described in further detail.

Referring to Fig. 1, Fig. 2, the clamping device of the manual ultrasonic inspection probe of making according to the utility model of macrotype axes series forging, it is mainly by push rod 1, bolt 3, inner sleeve 4, outer sleeve 5, spring 6 and pop one's head in and 7 form, the straight bar section retractable of push rod 1, its jaw end is movably connected on the barrel of outer sleeve 5, have through hole on the top end cover of outer sleeve 5, the barrel bottom surface is along circumferentially being provided with magnetic rollers 10; Inner sleeve 4 inserts wherein from the top end cover hole of outer sleeve 5, the top coupling bolt 3 of inner sleeve 4, the top diameter of bolt 3 is provided with probe 7 greater than outer sleeve 5 top end cover through-hole diameters in the inner sleeve 4, probe wire 2 is drawn from the through hole of inner sleeve 4 top bolts 3; Inner sleeve 4 bottoms connect bottom sleeves 8, and the bottom surface of bottom sleeves 8 has and is used to pop one's head in 7 through holes that detect, and the bottom surface of bottom sleeves 8 should exceed the magnetic rollers 10 of outer sleeve 5 bottom surfaces; Spring 6 is set between the barrel of inner sleeve 4 and outer sleeve 5, by outer sleeve 5 top end cover and bottom sleeves 8 upper surfaces with spring 6 axial limiting between the barrel of inside and outside sleeve.For guarantee to pop one's head in 7 and tested member between coupling effect, also be provided with elastic film 12 at the front end of probe 7, be fixed on bottom sleeves 8 inwalls before the probe 7 by two rubber bands 9 around the film 12.Fix film 12 by bottom sleeves 8 and the screw thread screwing force of inner sleeve 4 and the snap-in force of rubber band 9, abundant glycerine will be injected earlier in the film 12 during detection, 7 ends of guaranteeing to pop one's head in place glycerine fully, band through hole in the middle of the bolt 3, can adapt to the probe of differing heights like this, through hole is used to draw probe wire, when bolt 3 and inner sleeve 4 are tightened, pop one's head in that 7 ends are provided with rubber band 9 compacted, guarantee the sealing of its end.Totally four of magnetic rollers 10, assurance device is adsorbed in component surface reposefully.Cause frictional dissipation for preventing that film 12 and bottom sleeves 8 bottom surfaces from directly contacting with component surface, bottom surface in bottom sleeves 8 can be provided with contact salient point 11, this example is provided with 4 contact salient points 11 along circumferentially equidistant, and it cooperates 7 the adaptive effect that contacts of popping one's head in of playing with spring 6.The utility model is not when detecting, because bolt 3 top diameters are big than outer sleeve 5 apertures, thereby can prevent from inner sleeve 4, spring 6 and pop one's head in 7 to be scattered downwards, this moment, spring 6 was in relaxed state, when device contacts with member, magnetic rollers 10 can be adsorbed in component surface, contact salient point 11 is subjected to the power that component surface one makes progress, thereby compacted bolt 3, inner sleeve 4, probe 7 and 8 one the downward snap-in forces of bottom sleeves of giving of spring 6, so just can guarantee to pop one's head in 7 contacts with component surface preferably by film.

Present embodiment is provided with 4 magnetic rollers 10 in outer sleeve 5 bottoms along circumferentially equidistant, see shown in Figure 2, magnetic rollers 10 lines of centres are just in time through probe 7 centers up and down, therefore center point that can directly above magnetic roller 10 in the process that detects is reference, assurance the pop one's head in repeatability of 7 positions 15% and the integrality of whole scanning.As being example with certain large-scale wind electricity main-axis forging, this forging contains 1510mm, 660mm, the axle that three sections diameters of 600mm do not wait, its length is respectively 280mm, 475mm, 1105mm, adopt the method for manual detection, in conjunction with the digital reflectoscope of CUD2080, frequency probe 2.5MHz, probe diameter is 20mm, since the bigger needs of forging diameter repeatedly back and forth scanning just can finish the detection of whole forging, be difficult to guarantee the coincidence factor of scanning in the testing process, adopt ultrasonic inspection probe clamping device of the present utility model, after finishing the probe clamping, with the automatic type of alarm of ultrasound measuring instrument furnishing, coat paste as couplant on the forging surface, the end of axle is a bit as the scanning starting point, with roller B, starting point is aimed in the center of D, regulate by the length of flexible push rod 1 vertically, just can finish 660mm, the detection of two sections axles of 600mm, for the bigger 1510mm section of radius, whole probe and to install relative forging less, can along the circumferential direction divide two semi-circumferences to carry out the manually-operated scanning this moment.In the process of whole scanning, the testing staff need not walk up and down, only need the axial or circumferential position of each regulating device to guarantee 15% scanning coincidence factor, and the contact force at probe and detection interface changes less, improve detection efficiency greatly, prevented testing staff's omission by the automatic warning function of detecting instrument.For the flat-type member, can along dull and stereotyped length direction back and forth scanning get final product.

Claims (3)

1. the clamping device of the manual ultrasonic inspection probe of macrotype axes series forging is characterized in that it is to be made of push rod [1], bolt [3], spring [6], probe [7], inner sleeve [4], outer sleeve [5] and bottom sleeves [8]; The straight bar section retractable of push rod [1], its jaw end are movably connected on the barrel of outer sleeve [5], have through hole on the top end cover of outer sleeve [5], and the barrel bottom surface is along circumferentially being provided with magnetic rollers [10]; Inner sleeve [4] inserts wherein from the top end cover hole of outer sleeve [5], the top coupling bolt [3] of inner sleeve [4], the diameter of bolt [3] is greater than outer sleeve [5] top end cover through-hole diameter, probe [7] is set in the inner sleeve [4], and probe wire [2] is drawn from the through hole of inner sleeve [4] top bolt [3]; Inner sleeve [4] bottom connects bottom sleeves [8], and the bottom surface of bottom sleeves [8] has and is used for the through hole that probe [7] detects, and the bottom surface of bottom sleeves [8] should exceed the magnetic rollers [10] of outer sleeve [5] bottom surface; Spring [6] is set between the barrel of inner sleeve [4] and outer sleeve [5], by outer sleeve [5] top end cover and bottom sleeves [8] upper surface with spring [6] axial limiting between the barrel of inner sleeve [4] and outer sleeve [5].

2. according to the clamping device of the manual ultrasonic inspection probe of the described macrotype axes series forging of claim 1, the front end that it is characterized in that probe [7] is provided for guaranteeing the elastic film [12] of coupling effect between probe [7] and the tested member, and folding by two rubber bands [9] all around of film [12] is fixed on preceding bottom sleeves [8] inwall of probe [7].

3. according to the clamping device of the manual ultrasonic inspection probe of the described macrotype axes series forging of claim 1, it is characterized in that bottom sleeves [8] circumferentially is provided with the contact salient point [11] of antifriction loss along the barrel bottom surface.

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