CN211785344U

CN211785344U - Novel scanning frame for TOFD detector

Info

Publication number: CN211785344U
Application number: CN202020393703.6U
Authority: CN
Inventors: 史兴东; 王军; 史会领
Original assignee: Nanjing Poly Engineering Detection Co ltd
Current assignee: Nanjing Poly Engineering Detection Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-10-27
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to a TOFD detector is with novel scanning frame belongs to the technical field that the welding seam detected, this scanning frame includes scanning frame body and sets up the detector on scanning frame body, scanning frame body is equipped with the fixed block along one side extension of its width direction, be equipped with the spout along its length direction on the lateral wall of fixed block, the spout slides in the spout and is connected with a plurality of sliders, the one end that the spout was kept away from to the slider is connected with the detector through the connecting piece, be equipped with the retaining member that is used for fixed slider on the roof of fixed block; the plurality of detectors are arranged on the scanning frame body in a row, so that a unique detection starting point can be conveniently determined, detection personnel can conveniently and rapidly determine the position of a welding seam damage point according to a detection map, and the detection efficiency is improved; and a plurality of detectors are utilized, so that the omnibearing detection of the welding line with larger thickness is facilitated, and the adaptability is good.

Description

Novel scanning frame for TOFD detector

Technical Field

The utility model belongs to the technical field of the technique that the welding seam detected and specifically relates to a TOFD detector is with novel scanning frame is related to.

Background

The ultrasonic diffraction time difference method (TOFD) is a working mode of adopting a transmitting probe and a receiving probe, the transmitting probe generates non-focused longitudinal wave beams and transmits the beams into a workpiece to be detected at a certain angle, wherein part of the beams are transmitted along the near surface and received by the receiving probe, and part of the beams are reflected by the bottom surface and received by the receiving probe, the receiving probe determines the position and the height of a weld defect by receiving diffraction signals of the tip of the defect and time difference thereof, the recordable detection process is expressed by a map form, the internal condition of a detected object is observed more intuitively, and the TOFD is a more novel ultrasonic flaw detection technology, and has higher detection rate and accurate defect quantitative accuracy. Therefore, when the TOFD scanning is carried out, a scanning frame in a certain form is needed to fix the TOFD detector, so that the probe can walk along a preset track on the surface of the workpiece, and the ultrasonic scanning of the detected object is realized.

At present, a chinese utility model with an authorized bulletin number of CN204903470U discloses a visual ultrasonic TOFD weld detecting system which can be used by one person, comprising an ultrasonic detecting scanning frame detecting and screen data displaying device, wherein the ultrasonic detecting scanning frame comprises a connecting bracket, a plurality of supporting wheel modules, a coding module and a plurality of probe detecting modules, the connecting bracket comprises two transverse sliding rods, a longitudinal sliding rod and two handles, each probe detecting module comprises a probe and a probe holder, each probe is mounted on a probe holder, and each probe holder is fixed on the transverse sliding rod respectively; the utility model discloses a realize single independent detection, convenient to use reduces the human cost.

The above prior art solutions have the following drawbacks: when a detection person detects a weld damage point by using the ultrasonic detection scanning frame in the prior art, the plurality of probe frames are respectively fixed on the two transverse sliding rods, so that the detection person cannot determine which transverse sliding rod has the detection starting point as the reference, ambiguity is easy to occur, the position of the weld damage point is difficult to determine according to a displayed atlas, and the detection efficiency of the weld detection system is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a TOFD detector is with novel scanning frame adopts the single mode that sets up a plurality of detectors, confirms only survey the starting point, makes things convenient for the measurement personnel according to the position of surveying the map short-term determination welding seam damage point.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a TOFD detector is with novel scanning frame, includes to scan the frame body and set up the detector on scanning the frame body, it extends along one side of its width direction and is equipped with the fixed block to scan the frame body, be equipped with the spout along its length direction on the lateral wall of fixed block, the slip is connected with a plurality of sliders in the spout, the one end that the spout was kept away from to the slider is connected with the detector through the connecting piece, be equipped with the retaining member that is used for fixed slider on the roof of fixed block.

By adopting the technical scheme, in order to determine the only detection starting point, the plurality of detectors are arranged on the scanning frame body in a row, so that detection personnel can conveniently and quickly determine the position of a welding seam damage point according to the detection map, and the detection efficiency is improved; and a plurality of detectors are utilized, so that the omnibearing detection of the welding line with larger thickness on the pipeline to be detected is facilitated, and the adaptability is good.

The utility model discloses further set up to: the top wall of the detector is provided with an installation block, the connecting piece comprises a connecting rod, one end of the connecting rod is hinged to the side wall of the end, far away from the sliding groove, of the sliding block through a damping shaft, and the other end of the connecting rod is hinged to the side wall of the installation block through the damping shaft.

Through adopting above-mentioned technical scheme, because the surface of the pipeline that awaits measuring is the cambered surface, it is equipped with a plurality of detectors of single row on the frame to scan, the detector of keeping away from the welding seam needs to aim at the welding seam on the pipeline that awaits measuring and use, distance and angle between detector and the pipeline that awaits measuring need be adjusted to measurement personnel promptly, cooperation through slider and spout, make things convenient for measurement personnel to adjust the distance between detector and the pipeline that awaits measuring, cooperation through connecting rod and damping shaft, make things convenient for measurement personnel to adjust and stabilize the inclination of detector, pipeline and the welding seam of different thickness awaits measuring with the different diameters of adaptation.

The utility model discloses further set up to: the limiting block is arranged on the side wall of the sliding block, a limiting rod used for limiting the L shape of the connecting rod is arranged on the side wall of the limiting block, the limiting rod comprises a vertical rod and a horizontal rod, and the top wall of the horizontal rod is in lap joint with the bottom wall of the connecting rod.

Through adopting above-mentioned technical scheme, because the both ends of connecting rod are passed through the damping axle and are articulated mutually with slider and installation piece respectively, consider the bearing of connecting rod to the detector, in order to further keep the inclination of connecting rod, play support and spacing effect through the gag lever post to the connecting rod to guarantee the stability of detector in the use.

The utility model discloses further set up to: the vertical rod comprises a first vertical rod and a second vertical rod which are connected in a sliding mode inside and outside, the second vertical rod is hollow inside, a convex edge is arranged on the side wall of the first vertical rod, a groove matched with the convex edge in a sliding mode is formed in the inner side wall of the second vertical rod, a first waist-shaped through hole is formed in the side wall of the second vertical rod, and a first bolt penetrates through the first waist-shaped through hole to be connected with the first vertical rod in a threaded mode.

Through adopting above-mentioned technical scheme, when the diameter of the pipeline that awaits measuring is inconsistent, the testing personnel need adjust the angle between connecting rod and slider, in order to guarantee that the gag lever post supports and spacing effect to the connecting rod, set the gag lever post into inside and outside first gag lever post and the second gag lever post of sliding connection to it is fixed with the second gag lever post through first bolt, guarantee the stability that gag lever post and connecting rod are connected.

The utility model discloses further set up to: the shape of the longitudinal section of the sliding groove is T-shaped, and the shape of the longitudinal section of one end, extending into the sliding groove, of the sliding block is T-shaped.

Through adopting above-mentioned technical scheme, through the slider of T font and the cooperation of spout, promote the slider stability of roll adjustment process that slides, and then promote the stability of this scanning frame when using.

The utility model discloses further set up to: the side wall of one end, away from the sliding groove, of the sliding block is provided with an arc-shaped notch, and the groove wall of the arc-shaped notch is provided with an anti-skidding rubber pad.

Through adopting above-mentioned technical scheme, through the cooperation of circular arc notch and anti-skidding rubber pad, make things convenient for the manual detector slip to adjust to suitable position of examining.

The utility model discloses further set up to: the locking piece comprises a second bolt, a second waist-shaped through hole is formed in the side wall of the fixing block, and the second waist-shaped through hole is connected with the sliding block through threads.

By adopting the technical scheme, after the distance between each sliding block is adjusted by a detector according to the diameter of the pipeline and the thickness of the welding line, the sliding blocks are fixed on the fixed blocks by the second bolts, the structure is simple, and the stability of connection between the sliding blocks and the fixed blocks is ensured.

The utility model discloses further set up to: be equipped with the scale mark on the lateral wall of fixed block, be equipped with the indicator lever that is used for instructing the scale on the roof of slider, the lateral wall of indicator lever is laminated with the lateral wall of fixed block mutually.

Through adopting above-mentioned technical scheme, when the position of detection personnel adjustment slider that slides, through the cooperation of scale mark and instruction pole, make things convenient for detection personnel to carry out the mobile location to the slider fast to promote the installation effectiveness.

To sum up, the utility model discloses a beneficial technological effect does:

1. the detection efficiency is high: the plurality of detectors are arranged in a row on the scanning frame, and a unique detection starting point is determined, so that detection personnel can conveniently and rapidly determine the position of a welding seam damage point according to a detection map, and the detection efficiency is improved;

2. the adaptability is good: the welding lines with different thicknesses can be detected in an all-around manner by utilizing a plurality of detectors, and the adaptability is good; the two ends of the connecting rod are hinged to the side wall of the sliding block and the side wall of the mounting block respectively through the damping shafts, and the detector is guaranteed to be adaptive to pipelines to be tested and welding seams with different thicknesses, which are different in diameter, through the matching of the connecting rod and the limiting rod, and the adaptability is good.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the locking member, the connecting member, the slider, and the stopper in the present embodiment.

Fig. 3 is a schematic diagram of an explosive structure for embodying the stop lever in the present embodiment.

In the figure, 1, scanning a rack body; 2. a detector; 3. a fixed block; 4. a chute; 5. a slider; 6. a connecting member; 61. a connecting rod; 7. a locking member; 8. mounting blocks; 9. a damping shaft; 10. a limiting block; 11. a limiting rod; 111. a vertical rod; 1111. a first vertical rod; 1112. a second vertical rod; 112. a horizontal bar; 12. a rib; 13. a groove; 14. a first kidney-shaped perforation; 15. a first bolt; 16. a circular arc notch; 17. an anti-skid rubber pad; 18. a second bolt; 19. a second kidney-shaped perforation; 20. scale lines; 21. an indicator lever.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the scanning frame for the TOFD detector disclosed by the present invention is a novel scanning frame for conveniently detecting the position of a weld damage point according to a detection map by a detection person, so as to ensure detection efficiency, the scanning frame comprises a scanning frame body 1 and a detector 2 arranged on the scanning frame body 1, the detector 2 comprises a group of transmitting probes and receiving probes, the scanning frame is provided with a fixed block 3 extending along one side of the width direction, a sliding groove 4 is arranged on the side wall of the fixed block 3 along the length direction, a plurality of sliding blocks 5 are connected in the sliding groove 4 in a sliding manner, the sliding blocks 5 are preferably four, four detectors 2 can comprehensively detect the weld, one end of the sliding block 5 far away from the sliding groove 4 is connected with the detector 2 through a connecting piece 6, a locking piece 7 for fixing the sliding block 5 is arranged on the top wall of the fixed block 3, a scale mark 20 is arranged on the side wall of, an indicating rod 21 for indicating scales is arranged on the top wall of the sliding block 5, and the side wall of the indicating rod 21 is attached to the side wall of the fixed block 3; before a detector uses the scanning frame to detect, firstly sliding the sliding blocks 5 according to the diameter of a pipeline and the thickness of a welding seam, adjusting the distances of the four sliding blocks 5 through scales indicated by the indication rod 21, and then fixing the sliding blocks 5 in the fixed block 3 by utilizing the locking pieces 7; because only one row of setting of a plurality of detectors 2 is on the lateral wall of fixed block 3, be convenient for confirm only the detection starting point to make things convenient for the measurement personnel to confirm the position of welding seam damage point according to detecting the map fast, and then promote detection efficiency.

Referring to fig. 2, the sliding groove 4 is a sliding groove 4 with a longitudinal section in a T-shape, and the sliding block 5 with a longitudinal section in a T-shape is arranged at one end of the sliding block 5 extending into the sliding groove 4, so that the stability of the sliding block 5 during sliding and distance adjustment is improved.

Referring to fig. 2, the locking member 7 includes a second bolt 18, and a second kidney-shaped through hole 19 is formed in a side wall of the fixing block 3; after the detection personnel adjust the intervals of the four sliding blocks 5, the second bolt 18 is utilized to penetrate through the second waist-shaped through hole 19 and be in threaded connection with the sliding blocks 5, the structure is simple, and the sliding blocks 5 are conveniently fixed in the sliding grooves 4.

Referring to fig. 2, in order to facilitate the adjustment of the sliding block 5 by the inspector, an arc notch 16 is formed in a side wall of one end of the sliding block 5 away from the sliding chute 4, and an anti-skid rubber pad 17 is arranged on a groove wall of the arc notch 16.

Referring to fig. 2, a mounting block 8 is arranged on the top wall of the detector 2, the connecting member 6 includes a connecting rod 61, one end of the connecting rod 61 is hinged to the side wall of the end of the sliding block 5 far away from the sliding chute 4 through a damping shaft 9, and the other end of the connecting rod 61 is hinged to the side wall of the mounting block 8 through the damping shaft 9; because four sliders 5 are connected with four detectors 2 respectively, the bottom of two detectors 2 close to the welding seam is nearer apart from the pipeline, detector swing detector 2 to aim at the pipeline that awaits measuring after, connecting rod 61's inclination is great, keep away from the bottom of two detectors 2 of welding seam far away from the pipeline, detector swing detector 2 to aim at the pipeline that awaits measuring after, connecting rod 61's inclination is less, through connecting rod 61, make things convenient for detector to adjust four detectors 2's inclination, through damping axle 9, be favorable to keeping connecting rod 61's inclination, thereby guarantee to utilize this to sweep to examine the frame and examine the stability of examining time measuring.

Referring to fig. 2, a limiting block 10 is arranged on the side wall of the sliding block 5, an L-shaped limiting rod 11 for limiting the connecting rod 61 is arranged on the side wall of the limiting block 10, the limiting rod 11 comprises a vertical rod 111 and a horizontal rod 112, and the top wall of the horizontal rod 112 is overlapped with the bottom wall of the connecting rod 61; in consideration of the load bearing burden of the connecting rod 61 on the measuring instrument 2, and in order to further maintain the adjusted tilt angle of the connecting rod 61, the connecting rod 61 is further limited and supported by the limiting rod 11.

Referring to fig. 3, the vertical rod 111 includes a first vertical rod 1111 and a second vertical rod 1112 which are connected in an inner and outer sliding manner, the second vertical rod 1112 is hollow, a rib 12 is arranged on the side wall of the first vertical rod 1111, a groove 13 which is matched with the rib 12 in a sliding manner is arranged on the inner side wall of the second vertical rod 1112, and a first kidney-shaped through hole 14 is arranged on the side wall of the second vertical rod 1112; after the detection personnel adjusted connecting rod 61 to suitable inclination, according to the inclination of connecting rod 61 (fig. 2), after sliding first vertical pole 1111 to suitable length, utilize first bolt 15 to pass first waist shape perforation 14 and with second vertical pole 1112 threaded connection, guarantee that horizontal pole 112 plays stable support and spacing effect to connecting rod 61 to guarantee the stability of testing process.

The implementation principle of the embodiment is as follows: when a detector detects the welding seam of the pipeline to be detected by using the scanning frame, the positions of the four sliding blocks 5 are firstly adjusted in a sliding manner according to the diameter of the pipeline and the thickness of the welding seam, and then the sliding blocks 5 are fixed in the sliding grooves 4 by screwing the second bolts 18 through the second kidney-shaped through holes 19 and the sliding blocks 5; the connecting rod 61 or the swing detector 2 is rotated, the inclination angle of the connecting rod 61 is adjusted, the first vertical rod 1111 is slid, the first bolt 15 is screwed with the first vertical rod 1111 through the first kidney-shaped through hole 14, and the horizontal rod 112 is ensured to stably support the connecting rod 61, so that the stability of the detection process of the scanning frame is ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a TOFD detector is with novel scanning frame, includes scanning frame body (1) and sets up detector (2) on scanning frame body (1), its characterized in that: sweep and look into frame body (1) and extend along its width direction's one side and be equipped with fixed block (3), be equipped with spout (4) along its length direction on the lateral wall of fixed block (3), spout (4) internal slipping is connected with a plurality of slider (5), the one end that spout (4) were kept away from in slider (5) is connected with detector (2) through connecting piece (6), be equipped with retaining member (7) that are used for fixed sliding block (5) on the roof of fixed block (3).

2. The TOFD detector of claim 1, wherein the scanning frame is characterized in that: be equipped with installation piece (8) on the roof of detector (2), connecting piece (6) include connecting rod (61), the one end of connecting rod (61) is passed through damping axle (9) and is articulated on the lateral wall of the one end of keeping away from spout (4) in slider (5), the other end of connecting rod (61) passes through damping axle (9) and articulates on the lateral wall of installation piece (8).

3. The TOFD detector of claim 2, wherein the scanning frame is characterized in that: be equipped with stopper (10) on the lateral wall of slider (5), be equipped with on the lateral wall of stopper (10) and be used for carrying out spacing L shape gag lever post (11) to connecting rod (61), gag lever post (11) include vertical pole (111) and horizon bar (112), the roof of horizon bar (112) overlaps mutually with the diapire of connecting rod (61).

4. The TOFD detector of claim 3, wherein the scanning frame is characterized in that: vertical pole (111) slide first vertical pole (1111) and second vertical pole (1112) of connecting including inside and outside, the inside cavity of second vertical pole (1112), be equipped with on the lateral wall of first vertical pole (1111) bead (12), be equipped with on the inside wall of second vertical pole (1112) and slide complex recess (13) with bead (12), be equipped with first waist shape perforation (14) on the lateral wall of second vertical pole (1112), utilize first bolt (15) to pass first waist shape perforation (14) and first vertical pole (1111) threaded connection.

5. The TOFD detector of claim 1, wherein the scanning frame is characterized in that: the shape of the longitudinal section of the sliding groove (4) is T-shaped, and the shape of the longitudinal section of one end, extending into the sliding groove (4), of the sliding block (5) is T-shaped.

6. The TOFD detector of claim 5, wherein the scanning frame is characterized in that: the side wall of one end, far away from the sliding groove (4), of the sliding block (5) is provided with an arc-shaped groove opening (16), and the groove wall of the arc-shaped groove opening (16) is provided with an anti-skidding rubber pad (17).

7. The TOFD detector of claim 1, wherein the scanning frame is characterized in that: the locking piece (7) comprises a second bolt (18), a second waist-shaped through hole (19) is formed in the side wall of the fixing block (3), and the second waist-shaped through hole (19) is in threaded connection with the sliding block (5).

8. The TOFD detector of claim 1, wherein the scanning frame is characterized in that: be equipped with scale mark (20) on the lateral wall of fixed block (3), be equipped with on the roof of slider (5) and be used for instructing indicator lever (21) of scale, the lateral wall of indicator lever (21) is laminated with the lateral wall of fixed block (3) mutually.