CN114264729A - Online ultrasonic flaw detection equipment - Google Patents

Abstract

The utility model provides an online ultrasonic inspection equipment, relates to material surface quality detection technical field, including: a support base; one end of the lifting cavity is connected to the supporting base station, and a cavity opening is formed in one end, far away from the supporting base station, of the lifting cavity; a traction framework, one end of which is movably arranged in the lifting cavity through the cavity opening; the position detecting piece is arranged on the traction framework and used for pushing one end of the traction framework to penetrate into the lifting cavity when the position detecting piece is contacted with the bulge on the panel to be detected; the probe is arranged on the traction framework and is positioned at the downstream of the probe piece; when the triggering part triggers the induction part, the lifting cavity controls the traction framework to further penetrate into the lifting cavity; the invention can effectively prevent the probe from being damaged.

Description

Online ultrasonic flaw detection equipment

Technical Field

The invention relates to the technical field of material surface quality detection, in particular to online ultrasonic flaw detection equipment.

Background

The nondestructive inspection is an inspection method capable of inspecting the internal structure of an object to be inspected without damaging or affecting the usability of the object, and is generally performed by a chemical or physical inspection apparatus by detecting changes such as heat, sound, light, point, magnetism, and the like caused by abnormalities or defects in the internal structure of the material of the object to be inspected. Nondestructive testing mainly comprises ray inspection (RT), Ultrasonic Testing (UT), magnetic particle testing (MT) and liquid Penetration Testing (PT), wherein ultrasonic testing utilizes ultrasonic waves to detect flaws, an emission probe transmits the ultrasonic waves to the surface of a component through a coupling agent, the ultrasonic waves encounter different interfaces when propagating inside the component and have different reflection signals, and the defects inside the component can be inspected by utilizing the time difference of the transmission of the different reflection signals to the probe.

The instruments for ultrasonic testing are known as devices for moving the sensor relative to a fixed object, and also as devices for moving the object relative to a fixed sensor, which is generally better suited for detecting the flatness of the surface of a horizontally pushed metal sheet.

For example, chinese utility model patent with application number CN201621446998.9 discloses a flaw detection mechanism is visited on steel sheet ultrasonic automatic flaw detection equipment limit, and this mechanism includes the walking riser that can follow perpendicular to steel sheet advancing direction and remove, is equipped with the probe that can go up and down in perpendicular to steel sheet surface direction on the walking riser the one end of walking riser is equipped with the photoelectric sensor who is used for responding to the steel sheet position, the walking riser is with the help of pneumatic motor motion, the probe goes up and down with the help of the cylinder, photoelectric sensor is used for control pneumatic motor and cylinder. The mechanism is simple in structure, whether the steel plate is in place or not is detected through the photoelectric sensor, so that the pneumatic motor and the air cylinder are controlled to perform corresponding actions, the repetition precision is high, the side idler wheel rotates along with the translation of the steel plate, the stability and the reliability are good, parts have enough space to be maintained and replaced, the maintenance is convenient, and the failure rate is low.

The closer the ultrasonic probe is to the detection object, the higher the detection precision is, and in the technical scheme, the distance between the probe and the steel plate can be adjusted in a mode of lifting the probe so as to achieve a proper detection position; in actual detection, some steel sheets may have some relatively serious protrusions, for example, a protrusion effect caused by a welding seam, and the existence of these protruding welding seams or other protruding defects makes the probe easily collide with the protrusion when the probe is set too low, especially when the probe is set to be adhered to the surface of the steel sheet, so that the probe is damaged.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the online ultrasonic flaw detection equipment capable of automatically avoiding the large-scale defects on the steel plate, and the probe is effectively prevented from being damaged.

An on-line ultrasonic flaw detection apparatus comprising: a support base; one end of the lifting cavity is connected to the supporting base station, and a cavity opening is formed in one end, far away from the supporting base station, of the lifting cavity; a traction framework, one end of which is movably arranged in the lifting cavity through the cavity opening; the position detecting piece is arranged on the traction framework and used for pushing one end of the traction framework to penetrate into the lifting cavity when the position detecting piece is contacted with the bulge on the panel to be detected; the probe is arranged on the traction framework and is positioned at the downstream of the probe piece; the end part of the part, extending into the lifting cavity, of the traction framework is provided with a triggering part, the lifting cavity is internally provided with a sensing part, and when the triggering part triggers the sensing part, the lifting cavity controls the traction framework to further extend into the lifting cavity.

Preferably, the traction framework comprises a detection column and a telescopic column, one end of the telescopic column is arranged in the lifting cavity, the other end of the telescopic column is hinged to the detection column, the opposite end of the connection end of the detection column and the telescopic column is hinged to the support base, the position detection piece is arranged at the hinged position of the telescopic column and the detection column, and the probe is arranged on the detection column.

Preferably, in the above technical solution, the sensing portion is a magnetic induction area formed by a magnetic induction outer ring disposed outside the lifting cavity, the triggering portion is a magnetic induction inner ring disposed on the traction frame, and the magnetic induction outer ring and the magnetic induction inner ring are coaxially disposed.

Preferably, the probe is externally covered with a protective layer, and a lifting oblique angle is formed in the direction of the protective layer towards the probe piece.

Preferably, as above-mentioned technical scheme, the support base station includes leans on a cylinder, pillar, directional slide and supports and leans on the piece, support to lean on the piece fixed set up in pillar below, the pillar with directional slide sliding connection, just, lean on a cylinder set up in pillar top, lean on a cylinder with location slide cooperation control pillar is in the ascending motion of vertical direction.

Preferably, in the above technical solution, the abutting member and the positioning member are both wheel-shaped members capable of rotating around their central axes.

Preferably, as for the above technical solution, the end of the traction frame inserted into the lifting cavity is a piston, the piston is located in the lifting cavity, and the piston separates the interior of the lifting cavity into a rod cavity and a rodless cavity, wherein the traction frame is located in the rod cavity, and the lifting cavity further comprises a reversing air valve for controlling air pressure in the rod cavity.

Preferably, in the above technical solution, a limit portion is disposed on the magnetic induction outer ring, the magnetic induction outer ring is movably disposed on the lifting cavity, and the limit portion is configured to limit a position of the magnetic induction outer ring on an outer surface of the lifting cavity.

In summary, the invention has the following advantages:

1. the flaw detection equipment can detect large defects on the surface of the steel plate in advance, and can react to lift the probe in advance, so that the probe is prevented from touching the defects to cause damage;

2. furthermore, the whole structure is a stable triangular structure and has certain structural strength, but one side of the triangular structure is a telescopic rod type part with a contraction function, and the vertexes of the three sides of the triangular structure are hinged, so that when one side of the structure generates a surface with the length, the inner angle of the triangular structure can be pulled to change, and the effect of lifting the probe is achieved on the premise of stabilizing the structure;

3. furthermore, on the premise that the probe can avoid the large defects on the surface of the steel plate, the structure is attached to the surface of the steel plate to be detected as far as possible, and the detection precision is improved.

The benefits of further or other details will be discussed in the examples.

Drawings

FIG. 1 is a schematic diagram illustrating relative positions of structures in an initial state according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of relative positions of a structure when encountering a defect;

FIG. 3 is a schematic diagram of the relative position of the structure after rapid lifting;

FIG. 4 is an enlarged view of area A of FIG. 1;

fig. 5 is a schematic view of a defective steel plate.

Detailed Description

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.

The invention is further illustrated by the following examples:

the whole online ultrasonic flaw detection device mentioned in any embodiment of the present application is not moved, and can be used for detecting the quality of the surface of a steel plate transported on a roller conveyor (or other stably transported structures), please refer to fig. 5, in this embodiment, a protruding weld S-1 is formed on the detected steel plate S, and the steel plate S moves relative to the online ultrasonic flaw detection device, so as to detect the surface flatness, and the surface of the steel plate in the area near the weld S-1 does not need to detect the flatness, but it is necessary to ensure that the probe 5 does not touch the weld S-1 during detection.

Example (b):

an online ultrasonic flaw detection device, please refer to fig. 1-4, includes a supporting base 1, a lifting cavity 2, a traction mechanism 3, a probe 4 and a probe 5, wherein the supporting base 1 is integrally fixed with the ground in a bracket manner, or fixed on a wall surface, the lifting cavity 2 is a cylindrical member having a cavity therein, one end of the lifting cavity 2 is connected to the supporting base 1, and one end of the lifting cavity 2 away from the supporting base 1 is provided with a cavity opening; the traction mechanism 3 is composed of two straight rods which are respectively a telescopic column 32 and a detection column 31, wherein one part of one end of the telescopic column 32 is arranged in the lifting cavity 2 through a cavity opening of the lifting cavity 2, the other end of the telescopic column 32 is fixedly connected with the detection column 31, the detection piece 4 is arranged at the joint of the telescopic column 32 and the detection column 31, the detection piece 4 is of a wheel-shaped structure capable of rotating around the central axis of the detection piece 4, and the probe 5 is arranged on the detection column 31 and is positioned at the downstream of the detection piece 4; the end part of the part, extending into the lifting cavity 2, of the traction framework 3 is provided with a triggering part a-1, the lifting cavity 2 is internally provided with a sensing part a-2, and when the triggering part a-1 triggers the sensing part a-2, the lifting cavity 2 controls the traction framework 3 to further extend into the lifting cavity 2.

Preferably, the lifting cavity 2 adopts a single-acting spring return cylinder, the end of the part of the traction mechanism 3 extending into the lifting cavity 2 is a piston 33, the piston 33 divides the lifting cavity 2 into a rod cavity 21 and a rodless cavity 22, and the traction framework 3 is partially positioned in the rod cavity 21; the top end of the piston 33 is provided with a magnetic induction inner ring 61, the magnetic induction inner ring 61 is used as a trigger part a-1 of the embodiment, an annular magnetic induction outer ring 62 is sleeved outside the lifting cavity 2, an inner ring of the magnetic induction outer ring 62 forms a magnetic induction area which is positioned inside the lifting cavity 2, the magnetic induction area is an induction part a-2 of the embodiment, the magnetic induction outer ring 62 and the magnetic induction inner ring 61 are coaxially arranged, in an initial state, the magnetic induction inner ring 61 does not contact the magnetic induction area of the magnetic induction outer ring 62, namely, a gap is reserved between the magnetic induction outer ring 62 and the magnetic induction inner ring 61, and only when the magnetic induction inner ring 61 is lifted, the magnetic induction inner ring 61 can contact the magnetic induction area of the magnetic induction outer ring 62 to generate electromagnetic induction; the electromagnetic induction effect between the magnetic induction inner ring 61 and the magnetic induction outer ring 62 is mainly used for controlling a reversing air valve 7 which is also arranged on the lifting cavity 2, the reversing air valve 7 is an electromagnetic induction air valve, when electromagnetic induction occurs between the magnetic induction inner ring 61 and the magnetic induction outer ring 62, the electromagnetic reversing air valve acts, compressed air is injected into the rod cavity 21, and the piston 33 drives the traction mechanism 3 to further go deep into the lifting cavity 2 due to the air pressure difference formed between the rod cavity 21 and the rodless cavity 22.

Based on the above arrangement, when the wheel-shaped position detecting member 4 passes through the weld seam S-1 on the steel plate S, referring to the positional relationship in fig. 2, the position detecting member 4 drives the telescopic rod 32 to be lifted upwards and further into the lifting chamber 2, the gap between the magnetic induction inner ring 61 and the magnetic induction outer ring 62 is gradually reduced, if the weld seam S-1 is high enough (the height may damage the probe 5 located at the downstream of the position detecting member 4 in the further advancing process of the steel plate S), the electromagnetic induction triggers, the electromagnetic reversing air valve acts, the compressed air is injected into the rod chamber 21, the telescopic rod 32 and the position detecting member 4 are driven to be further lifted, the associated detecting column 31 and the probe 5 located on the detecting column 31 are lifted upwards, and the probe is prevented from touching the weld seam S-1 to cause damage, and the positional relationship is shown in fig. 3.

In addition, a limit part is arranged on the magnetic induction outer ring 62, the magnetic induction outer ring 62 is movably arranged on the lifting cavity 2, the limit part comprises a threaded through hole formed in the magnetic induction outer ring 62 and a positioning bolt, and the positioning bolt positions the magnetic induction outer ring 62 on the lifting cavity 2 through the threaded through hole of the magnetic induction outer ring 62; the arrangement mode enables the magnetic induction outer ring 62 to have certain position adjusting capacity, so that the initial gap between the magnetic induction outer ring 62 and the magnetic induction inner ring 61 can be adjusted.

Specifically, one end of the telescopic column 32 is disposed inside the lifting cavity 2, the other end of the telescopic column 32 is hinged to the detection column 31, and the opposite end of the connection end of the detection column 31 and the telescopic column 32 is hinged to the support base 1. Since the detection column 31, the support base 1, the telescopic column 32 and the lifting cavity 2 are hinged to each other in this embodiment, the above four structures can be regarded as a deformable triangle structure, when the telescopic column 32 is retracted into the lifting cavity 2, the lengths of the triangle structures at the sections of the telescopic column 32 and the lifting cavity 2 are gradually reduced, one side of the triangle structure is reduced, and the other two sides are not changed, and since three vertexes of the triangle structure are hinged structures, when one side is deformed, the whole triangle structure can maintain the balance of the triangle structure by changing the inner angle number, and in this embodiment, the support base 1 is a fixed structure, so that the detection column 31 is driven to move upwards when the telescopic column 32 is retracted, and since the other end of the detection column 31 is hinged and fixed, the reaction is relatively fixed with the connecting end of the supporting base station 1 on the detection column 31, the hinged end of the detection column 31 and the hinged end of the telescopic column 32 move upwards, and a single-side tilting effect is achieved, so that the detection part 4, the detection column 31 and the probe 5 arranged on the detection column 31 are kept away from the welding seam S-1.

More specifically, the supporting base 1 includes a leaning cylinder 11, a base column 12, a directional sliding seat 13 and a leaning piece 14; the abutting piece 14 is arranged below the base column 12 and is a wheel-shaped piece identical to the position detecting piece 4; directional slide 13 is directional guide rail, foundation 12 is movably set up on directional slide 13, the top of foundation 12 is connected with leans on a cylinder 11, wherein lean on a cylinder 11 and directional slide 13 and all fix through the support, lean on under a cylinder 11's the effect, foundation 12 is through the removal about carrying out of directional slide 13's direction, the main function of the aforesaid setting is, when the steel to the different board thicknesses, the height of self can be adjusted as required to the online ultrasonic inspection equipment of this embodiment, make self press close to the steel that awaits measuring as far as possible, make ultrasonic probe's detection precision more accurate.

As preferredly, the outside cladding of probe 5 has the protective sheath, and the material of protective sheath is polytetrafluoroethylene, and probe 5 has seted up oblique angle 51 towards the juncture of the terminal surface of position detection piece 4 and protective sheath ground, and oblique angle 51's function is: when the welding seam S-1 encountered by the detecting part 4 is small, the welding seam S-1 can not lift the magnetic induction inner 61 ring to the magnetic induction area of the magnetic induction outer ring 62 when lifting the detecting part 4, the electromagnetic reversing air valve can not be triggered, the welding seam is better to be processed at the welding seam position to be smooth, the electromagnetic reversing air valve can not be triggered by the detecting part 4 without being influenced by the triggering of the electromagnetic reversing air valve, but the electromagnetic reversing air valve can not be triggered by the detecting part 4, but the protective sleeve of the probe 5 can be touched by the welding seam, the bevel 51 of the protective sleeve provides a guiding function at the moment, the probe 5 is lifted by the welding seam under the guiding of the bevel 51, the tilting fulcrum of the detecting column 31 is a hinged point with the supporting base 1, the same welding seam protrusion amount passes through the detecting part 4 and the bevel 51, the lifting amount of the detecting column 31 far away from the tilting fulcrum end is different, and the probe 5 is closer to the tilting fulcrum than the detecting part 4, the lifting amount of the bevel 51 is higher, so that when the bevel 51 passes through, the amount of the telescopic column 32 entering the lifting cavity 2 is larger than the amount when the telescopic column passes through the position detecting piece 4, and the secondary lifting can trigger the electromagnetic reversing air valve, so that the telescopic column 32 drives the detecting column 31 to be further lifted, and the probe 5 avoids the welding line.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. An online ultrasonic flaw detection device is characterized by comprising:

a support base (1);

one end of the lifting cavity (2) is connected to the supporting base station (1), and a cavity opening is formed in one end, far away from the supporting base station (1), of the lifting cavity (2);

a traction framework (3), one end of which is movably arranged in the lifting cavity (2) through the cavity opening;

the position detecting piece (4) is arranged on the traction framework (3) and used for pushing one end of the traction framework (3) to penetrate into the lifting cavity (2) when the position detecting piece contacts with the bulge on the panel to be detected;

the probe (5) is arranged on the traction framework (3) and is positioned at the downstream of the probe part (4);

the end part of the part, extending into the lifting cavity (2), of the traction framework (3) is provided with a triggering part (a-1), an induction part (a-2) is arranged in the lifting cavity (2), and when the induction part (a-2) is triggered by the triggering part (a-1), the lifting cavity (2) controls the traction framework (3) to further extend into the lifting cavity (2).

2. The on-line ultrasonic flaw detection apparatus according to claim 1, characterized in that: draw framework (3) including surveying post (31) and flexible post (32), flexible post (32) one end set up in lifting cavity (2), the other end of flexible post (32) with survey post (31) and articulated mutually, survey post (31) with the looks remote site of flexible post (32) link with it is articulated mutually to support base station (1), it sets up in to visit a position spare (4) flexible post (32) with the articulated department of surveying post (31), probe (5) set up in on surveying post (31).

3. The on-line ultrasonic testing apparatus according to claim 1 or 2, characterized in that: the induction part (a-2) is a magnetic induction area formed by a magnetic induction outer ring (62) arranged outside the lifting cavity (2), the trigger part (a-1) is a magnetic induction inner ring (61) arranged on the traction frame (3), and the magnetic induction outer ring (62) and the magnetic induction inner ring (61) are coaxially arranged.

4. The on-line ultrasonic flaw detection apparatus according to claim 1, characterized in that: the outside cladding of probe (4) has the protective layer, just the protective layer orientation the direction of detecting the piece has seted up lifting oblique angle (51).

5. The on-line ultrasonic flaw detection apparatus according to claim 1, characterized in that: support base station (1) including leaning on a cylinder (11), foundation column (12), directional slide (13) and support and lean on a (14), support to lean on a (14) fixed set up in foundation column (12) below, foundation column (12) with directional slide (13) sliding connection, just, lean on a cylinder (11) set up in foundation column (12) top, lean on a cylinder (11) with location slide (13) cooperation control foundation column (12) is at the ascending motion of vertical side.

6. The on-line ultrasonic testing apparatus according to claim 5, characterized in that: the abutting part (14) and the detecting part (4) are both wheel-shaped parts capable of rotating around the central axis of the abutting part and the detecting part.

7. The on-line ultrasonic flaw detection apparatus according to claim 1, characterized in that: draw framework (3) to go in the tip of lifting cavity (2) part is piston (33), piston (33) are located lifting cavity (2), just, piston (33) will lifting cavity (2) are inside to be separated into and have pole chamber (21) and no pole chamber (22), wherein, draw framework (3) part to be located there is pole chamber (21) in, lifting cavity (2) still include switching-over pneumatic valve (7), switching-over pneumatic valve (7) control have the atmospheric pressure in pole chamber (21).

8. The on-line ultrasonic flaw detection apparatus according to claim 3, characterized in that: the magnetic induction outer ring (62) is provided with a limiting part, the magnetic induction outer ring (62) is movably arranged on the lifting cavity (2), and the limiting part is used for limiting the position of the magnetic induction outer ring (62) on the outer surface of the lifting cavity (2).

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