Cylindrical workpiece fillet weld phased array ultrasonic detection scanning device

Abstract

The utility model provides a phased array ultrasonic detection scanning device for fillet welds of cylindrical workpieces, which belongs to the technical field of phased array ultrasonic detection scanning and comprises a transverse guide frame and a longitudinal guide frame which are rotatably connected with each other, a fastening component is arranged at the joint of the transverse guide frame and the longitudinal guide frame, a walking frame is slidably arranged on the outer wall of the longitudinal guide frame, and the transverse guide frame and the longitudinal guide frame are fixedly connected with each other. Magnetic attraction wheels are symmetrically and rotationally arranged on the walking frame, encoders in transmission connection with the magnetic attraction wheels are arranged on the outer side of the walking frame, a displacement frame is slidably arranged at the bottom of the transverse guide frame, a support is rotationally arranged at the bottom of the side, away from the longitudinal guide frame, of the displacement frame, the displacement frame slides at the bottom of the transverse guide frame, and a locking component is installed at the bottom of the displacement frame. The probe is fixed through the locking component, the probe transmits data to the phased array ultrasonic detector through the wire, the probe is adjusted to a proper position after being fixed according to the shape of a cylindrical workpiece, it is guaranteed that the probe can scan a weld joint, and therefore the detection accuracy of the weld joint is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of phased array ultrasonic detection, in particular to a cylindrical workpiece fillet joint phased array ultrasonic detection scanning device. BACKGROUND

[0002] At present, phased array ultrasonic detection technology has been widely applied to various weld defect detection. Among them, the fillet joint detection is more difficult and requires higher. Because the detection involves various diameter cylindrical fillet joint scanning, it is inconvenient to scan along the same circumference with the probe, and the existing cylindrical fillet joint is a handheld probe that continuously adjusts the probe angle to correct the walking deviation and complete the scanning.

[0003] The detection personnel put the scanning device with probe and encoder on the surface of the test piece to be detected, and push the scanning device along the circumferential direction of the fillet joint at a constant speed. Because the probe needs to be continuously adjusted to ensure that the walking track is along the same front end distance and the same circumferential track, and data is collected to form a map. Moreover, the encoder needs to be installed closely to the scanning frame. Because the probe scans on the bottom plane of the cylindrical workpiece, and the effective probe front end distance needs to be determined, the probe walking track is much smaller than the actual fillet joint circumference, which leads to the fact that the position collected by the encoder cannot correspond to the position of the weld, and there is a large error in the length.

[0004] Once the defect is found, the position needs to be calculated and judged according to the diameter difference between the probe and the encoder walking track, and the handheld probe scanning operation is time-consuming and low in efficiency. To this end, we propose a cylindrical workpiece fillet joint phased array ultrasonic detection scanning device.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background section of the present application, and therefore can include information that does not constitute prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at solving one of the technical problems existing in the prior art or related art. In order to solve the problem of cylindrical weld scanning in the above prior art, the utility model provides a cylindrical workpiece fillet joint phased array ultrasonic detection scanning device, which adopts a magnetic attraction ring moving structure combined with a weld scanning structure to improve the efficiency of cylindrical detection process. The specific technical scheme is as follows:

[0007] A kind of cylindrical workpiece fillet weld phased array ultrasonic detection scanning device, including transverse guide frame and longitudinal guide frame being connected with each other, the connecting place of the transverse guide frame with the longitudinal guide frame is provided with fastening component, the outer wall of the longitudinal guide frame is slidably provided with walking frame, the walking frame is symmetrically rotatably provided with magnetic attraction wheel, the outside of the walking frame is provided with encoder with the transmission connection of the magnetic attraction wheel, the bottom of the transverse guide frame is slidably provided with displacement frame, the side bottom of the displacement frame away from the longitudinal guide frame is rotatably provided with support, the support is provided with locking component, and the support is fixed by locking component with probe.

[0008] In the above technical scheme, the locking component includes a positioning member fixed to the side of the support away from the longitudinal guide frame, and a clamping member parallel to the positioning member is sleeved on the outside of the support, and a positioning member is arranged on the clamping member.

[0009] The positioning member includes a deformation groove opened on the side wall of the clamping member, and the deformation groove is located on the side close to the longitudinal guide frame, and a locking member is threadedly connected to the top of the clamping member, and the locking member is located above the deformation groove.

[0010] The side close to the support of the displacement frame is fixed with a threaded column, the support is sleeved on the outside of the threaded column, and a fastener is threadedly connected to the surface of the support.

[0011] The top of the displacement frame is fixed with a sliding block, and the bottom of the transverse guide frame is provided with a sliding groove, and the sliding block is slidably arranged in the sliding groove.

[0012] The fastening component includes a fastening bolt penetrating the connecting place of the transverse guide frame and the longitudinal guide frame, and a fastening nut is threadedly connected to the outside of the fastening bolt.

[0013] The walking frame is provided with a butt joint groove, and a positioning bolt penetrating the walking frame is provided to extend into the inner cavity of the butt joint groove, a guide block is threadedly connected to the outside of the positioning bolt and located in the inner cavity of the butt joint groove, and a guide groove is opened on the outer wall of the longitudinal guide frame, and the guide block is slidably arranged in the guide groove.

[0014] The transverse guide frame and the outer wall of the longitudinal guide frame are both provided with scale lines.

[0015] Compared with the prior art, the cylindrical workpiece fillet weld phased array ultrasonic detection scanning device has the following advantages:

[0016] I. Two driving magnetic wheels are clamped on the side wall of the cylindrical workpiece to be inspected, and the two magnetic wheels are magnetically attracted to the side wall at a fixed distance and angle according to different cylinder diameters. The magnetic wheels have a certain width and contact the pipe wall for adsorption, so that the driving part can walk along the circumferential trajectory of the cylinder side wall without horizontal deflection, and the front end distance between the probe and the corner weld of the workpiece to be inspected is not deflected.

[0017] II. The probe clamping part is connected and supported by the displacement frame, which can be adjusted to a fixed position on the transverse guide frame according to different cylinder diameters, and the magnetic adsorption of the magnetic wheel ensures that the probe is well coupled to the surface of the workpiece at different front end distances set for detection of different cylinder diameters, so that the scanning diameter remains unchanged and the circumferential direction is well coupled. Scanning of corner welds of different specifications of cylinders can be achieved.

[0018] III. The encoder is closely attached to the upper part of the driving wheel to complete the transmission, ensuring that the recorded data of the encoder corresponds to the circumference of the entire corner weld, and the count is collected, thereby completing the whole-circle scanning and recording of the corner weld by the scanning device, making the pattern acquisition of the cylindrical workpiece corner weld by the phased array ultrasonic detection more accurate, stable and convenient, and the non-destructive testing quality more accurate.

[0019] IV. According to the position of the corner weld of the cylindrical workpiece, the angle of the transverse guide frame is adjusted, and then the angle is fixed by the fastening member. The position of the transverse guide frame is adjusted according to the shape of the cylindrical workpiece, so that it can be applied to the scanning detection of cylindrical workpieces of different specifications.

[0020] V. According to the shape of the cylindrical workpiece, the probe is fixed and adjusted to the appropriate position to ensure that the probe is at the weld scanning position, thereby ensuring the accuracy of the weld detection.

[0021] VI. The probe is attached to the inner wall of the positioning member, then the clamping member is slid and clamped on the outer wall of the support towards the positioning member, and then the position of the clamping member is locked by the positioning member, so that the probe is fixed between the clamping member and the positioning member. The position of the clamping member is adjusted according to the specification of the probe, thereby ensuring the stability of the scanning process of the probe. The position of the clamping member can be adjusted according to the specification of the probe, so that it can be applied to probes of different specifications.

[0022] VII. According to the slope of the detection surface of the cylindrical workpiece, the outer support of the threaded column is rotated to adjust the position of the limiting member, ensuring the adhesion of the probe to the detection surface, thereby ensuring the accuracy of the weld detection result.

[0023] VIII. The recorded data angle of the encoder corresponds to the circumference of the corner weld, so the defect position can be directly determined without any calculation. The entire weld detection pattern can be scanned by walking along the cylinder wall once, making the pattern acquisition of the workpiece by the phased array ultrasonic detection more accurate, stable and convenient, and the non-destructive testing quality more accurate. Attached Figure Description

[0024] Fig. 1 This is a schematic diagram of the phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to the present invention.

[0025] Fig. 2 This is an exploded view of the structure of a phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to the present invention.

[0026] Fig. 3 This is a schematic diagram of the walking frame part of this utility model;

[0027] in, Figs. 1-3 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Longitudinal guide, 2-Longitudinal guide, 3-Probe, 4-Traveling frame, 6-Encoder, 7-Bracket, 8-Displacement frame, 9-Positioning component, 10-Snap-fit ​​component, 11-Deformation groove, 12-Locking component, 13-Magnetic suction wheel, 14-Support plate, 15-Locking bolt, 16-Scale line, 17-Fastening bolt, 18-Fastening nut, 19-Guide block, 20-Threaded post, 21-Fastener, 22-Slider, 23-Transmission wheel, 24-Matching groove, 25-Positioning bolt. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The following are specific implementation cases and appendices. Figs. 1-3 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0030] A phased array ultrasonic scanning device for inspecting fillet welds of cylindrical workpieces includes a transverse guide 1 and a longitudinal guide 2 rotatably connected to each other. A fastening member is provided at the connection between the transverse guide 1 and the longitudinal guide 2. Mounting holes are provided at the connecting ends of the transverse guide 1 and the longitudinal guide 2 via connecting members, allowing both the transverse guide 1 and the longitudinal guide 2 to be movably fitted onto the outside of a fastening bolt 17 through the mounting holes on the connecting members, enabling the transverse guide 1 and the longitudinal guide 2 to rotate around the fastening bolt 17. The rotation angle of the transverse guide 1 is adjusted according to the position of the fillet weld on the cylindrical workpiece, and then the angle is fixed by the fastening member. The position of the transverse guide 1 is adjusted according to the shape of the cylindrical workpiece, thus making it suitable for scanning and inspecting cylindrical workpieces of different specifications.

[0031] A traveling frame 4 is slidably mounted on the outer wall of the longitudinal guide frame 2, sliding against the outer wall of the longitudinal guide frame 2. Magnetic rollers 13 are symmetrically rotatably mounted on the traveling frame 4, and an encoder 6, which is drively connected to the magnetic rollers 13, is mounted on the outer side of the traveling frame 4. Two grooves are provided on the traveling frame 4, and a central shaft is rotatably mounted within each groove. The two magnetic rollers 13 are respectively sleeved on the outside of the two central shafts. A groove is formed on the circumferential outer wall of the magnetic rollers 13, and a magnet is embedded within the groove. This allows the magnetic rollers 13 to adhere to the outer wall of a cylindrical workpiece.

[0032] One of the magnetic rollers 13 has its central shaft extending to the outside of the traveling frame 4. A drive wheel 23 is movably fitted onto the outer wall of the traveling frame 4 via a central mounting hole, allowing the drive wheel 23 to rotate outside the traveling frame 4 along with one of the magnetic rollers 13. A mounting bearing is embedded in the outer wall of the traveling frame 4, and one end of a movable shaft is embedded outside the mounting bearing. A circular encoder 6 is fixedly fitted onto the outside of the movable shaft via a central mounting hole, allowing the encoder 6 to rotate on the outer wall of the traveling frame 4. The position of the movable shaft ensures that the outer wall of the encoder 6 is in contact with the outer wall of the drive wheel 23. When the magnetic roller 13 rotates, it drives the encoder 6 via the linked drive wheel 23.

[0033] The data transmitter 26 is fixedly attached to the surface of the traveling frame 4. The encoder 6 is rotatably mounted on the side wall of the data transmitter 26. A sensor enables the data transmitter 26 to record the number of rotations of the encoder 6 and the length of the travel path. One end of the data transmitter 26 is equipped with a data cable, the other end of which is electrically connected to the phased array ultrasonic testing instrument. The data from the encoder 6 is transmitted to the data transmitter 26 via the wire, and then transmitted to the phased array ultrasonic testing instrument. The weld seam is inspected by analyzing the pattern data on the phased array ultrasonic testing instrument.

[0034] A displacement frame 8 is slidably mounted on the bottom of the transverse guide frame 1. A support 7 is rotatably mounted on the bottom side of the displacement frame 8 away from the longitudinal guide frame 2. A locking component is mounted on the support 7, which secures the probe 3. The probe 3 and encoder 6 are connected to the phased array ultrasonic testing instrument via wires. The displacement frame 8 slides on the bottom of the transverse guide frame 1, and the locking component at the bottom of the displacement frame 8 secures the probe 3. The probe 3 transmits data to the phased array ultrasonic testing instrument via wires. Based on the shape of the cylindrical workpiece, the probe 3 is fixed and adjusted to a suitable position to ensure that the probe 3 is at the weld inspection point, thus ensuring the accuracy of the weld inspection.

[0035] The locking member comprises a positioning member 9 fixed to the bracket 7 away from the longitudinal guide frame 2, and a clamping member 10 parallel to the positioning member 9 is sleeved on the outer part of the bracket 7, and the clamping member 10 is provided with a positioning member. The positioning member 9 is fixedly installed on the surface of the bracket 7, and the positioning member 9 is fixed at a position close to the edge of the bracket 7. The clamping member 10 is movably sleeved on the outer part of the bracket 7 through the through hole penetrating the inner cavity opened transversely, the probe 3 electrically connected with the phased array ultrasonic detector is attached to the inner wall of the positioning member 9, then the clamping member 10 is slid on the outer wall of the bracket 7 towards the positioning member 9, so that the clamping member 10 is attached to the surface of the probe 3, and then the position of the clamping member 10 is locked through the positioning member, so that the probe 3 is fixed between the clamping member 10 and the positioning member 9.

[0036] The position of the clamping member 10 is adjusted according to the specification of the probe 3, and the stability of the probe scanning process is ensured. The position of the clamping member 10 can be adjusted according to the specification of the probe 3, and the probe 3 of different specifications can be applied.

[0037] It is worth noting that the positioning member comprises a deformation groove 11 opened on the side wall of the clamping member 10, and the deformation groove 11 is located on the side close to the longitudinal guide frame 2. The deformation groove 11 is opened on the side of the clamping member 10 facing the longitudinal guide frame 2 and extends into the sleeving hole. The two parts of the clamping member 10 can move relative to or away from each other through the deformation groove 11. The size of the sleeving hole is changed through the deformation groove 11. When the clamping member 10 is sleeved on the outer part of the bracket 7, the deformation groove 11 is enlarged, and then it is sleeved on the outer part of the bracket 7. Then slide on the bracket 7 towards the positioning member 9.

[0038] The top of the clamping member 10 is threadedly connected with a locking member 12, and the locking member 12 is located above the deformation groove 11. The locking member 12 can be a bolt extending to the inner wall bottom of the deformation groove 11. After the clamping member 10 is attached to the surface of the probe 3. Turn the locking member 12 on the inner wall bottom of the deformation groove 11. As the threaded connection part of the clamping member 10 makes the deformation groove 11 smaller, the clamping member 10 is fixed on the bracket 7, and the probe 3 is fixed.

[0039] In addition, the displacement frame 8 is fixed with a threaded column 20 on the side close to the bracket 7, and the bracket 7 is sleeved on the outer part of the threaded column 20. The threaded column 20 is fixed vertically at the center position of the surface of the displacement frame 8, and the bracket 7 is movably sleeved on the outer part of the threaded column 20 through the centrally opened mounting hole, so that the bracket 7 rotates around the threaded column 20 as the center. The outer part of the threaded column 20 is threadedly connected with a fastener 21 attached to the surface of the bracket 7. The fastener 21 can be a nut.

[0040] The bracket 7 is rotated on the outer part of the threaded column 20 according to the slope of the detection surface of the cylindrical workpiece, the position of the limiting member 9 is adjusted, the attachment of the probe 3 to the detection surface is ensured, and the accuracy of the welding seam detection result is ensured.

[0041] In addition, the top of the displacement frame 8 is fixedly connected with a sliding block 22, the bottom of the transverse guide frame 1 is provided with a sliding groove, and the sliding block 22 is slidingly arranged in the sliding groove. The bottom of the supporting plate 14 is threadedly connected with a locking bolt 15 extending into the sliding groove. After the displacement frame 8 is adjusted to a proper position, the locking bolt 15 is screwed, so that the position of the displacement frame 8 is locked.

[0042] The supporting plate 14 is fixedly installed on the top of the displacement frame 8, and the trapezoidal sliding block 22 is fixedly installed on the top of the supporting plate 14, so that the sliding block 22 is slidingly attached to the inner wall of the trapezoidal sliding groove, the stability of the position adjustment of the displacement frame 8 is ensured, the position deviation is avoided, and the accuracy of the position adjustment is improved.

[0043] Further, the fastening member comprises a fastening bolt 17 penetrating through the connecting position of the transverse guide frame 1 and the longitudinal guide frame 2, and a fastening nut 18 is threadedly connected to the outside of the fastening bolt 17. After the transverse guide frame 1 and the longitudinal guide frame 2 are adjusted to a proper angle, the fastening nut 18 is screwed on the outside of the fastening bolt 17, so that the position of the transverse guide frame 1 and the longitudinal guide frame 2 is locked.

[0044] The walking frame 4 is provided with a butt joint groove 24, and the walking frame 4 is provided with a positioning bolt 25 extending into the inner cavity of the butt joint groove 24, the outer part of the positioning bolt 25 is threadedly connected with a guide block 19 located in the inner cavity of the butt joint groove 24, the outer wall of the longitudinal guide frame 2 is provided with a guide groove, and the guide block 19 is slidingly arranged in the guide groove, the cross section of the guide block 19 and the guide groove are trapezoidal, the position of the walking frame 4 on the longitudinal guide frame 2 is adjusted through the sliding cooperation of the guide block 19 and the guide groove, and then the walking frame 4 is fixed through the positioning bolt 25, so that the walking frame 4 is adjusted to an accurate position.

[0045] The outer walls of the transverse guide frame 1 and the longitudinal guide frame 2 are provided with scale lines 16. The position can be more accurately adjusted through the scale lines 16, so that the accuracy of the weld phased array ultrasonic detection result is ensured.

[0046] The working principle of the cylindrical workpiece fillet weld phased array ultrasonic detection scanning device is as follows: first, coupling agent is brushed on the track of the probe 3 or the probe 3 is connected with a water coupling pipe, and then the probe 3 is fixed on the support 7.

[0047] Then, the support 7 is rotated on the outside of the threaded column 20 according to the slope of the detection surface, the position of the probe 3 is adjusted to be attached to the detection surface, and then the displacement frame 8 is slidingly adjusted on the transverse guide frame 1 to adjust the position of the probe 3. Then, the walking frame 4 is slidingly adjusted on the longitudinal guide frame 2 according to the position of the probe 3, and the magnetic attraction wheel 13 is adjusted to a proper position.

[0048] Afterwards, the magnetic wheel 13 is pushed on the outer wall of the cylindrical workpiece, so that the probe 3 scans and detects the weld, and the probe 3 transmits the scanned data to the phased array ultrasonic detector through the data line, and the data of the encoder 6 is transmitted to the data transmitter 26 through the wire, and the data is transmitted to the phased array ultrasonic detector through the data transmitter 26.

[0049] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, so that the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly included at least one of the features.

[0051] In the present application, unless otherwise specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specified, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0052] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A phased array ultrasonic inspection device for fillet welds of cylindrical workpieces, characterized in that: The device includes a transverse guide (1) and a longitudinal guide (2) that are rotatably connected to each other. A fastening member is provided at the connection between the transverse guide (1) and the longitudinal guide (2). A traveling frame (4) is slidably provided on the outer wall of the longitudinal guide (2). A magnetic chuck (13) is symmetrically rotatably provided on the traveling frame (4). An encoder (6) that is induced to be connected to the magnetic chuck (13) is provided on the outer side of the traveling frame (4). A displacement frame (8) is slidably provided at the bottom of the transverse guide (1). A bracket (7) is rotatably provided at the bottom of the side of the displacement frame (8) away from the longitudinal guide (2). A locking member is provided on the bracket (7), and the bracket (7) fixes the probe (3) by means of the locking member.

2. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 1, characterized in that: The locking component includes a positioning member (9) fixed to the side of the bracket (7) away from the longitudinal guide (2), and a snap-fit ​​member (10) parallel to the positioning member (9) is sleeved on the outside of the bracket (7), and the snap-fit ​​member (10) is provided with a positioning component.

3. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 2, characterized in that: The positioning component includes a deformation groove (11) formed on the side wall of the snap-fit ​​member (10), and the deformation groove (11) is located on the side close to the longitudinal guide (2). The top of the snap-fit ​​member (10) is threaded with a locking member (12), and the locking member (12) is located above the deformation groove (11).

4. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 1, characterized in that: The displacement frame (8) is fixedly connected to a threaded post (20) on the side near the bracket (7). The bracket (7) is sleeved on the outside of the threaded post (20). The threaded post (20) is threaded with fasteners (21) that fit against the surface of the bracket (7).

5. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 1, characterized in that: The top of the displacement frame (8) is fixed with a slider (22), and the bottom of the transverse guide frame (1) is provided with a sliding groove, and the slider (22) is slidably disposed inside the sliding groove.

6. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 1, characterized in that: The fastening component includes a fastening bolt (17) that passes through the connection between the transverse guide (1) and the longitudinal guide (2), and the fastening bolt (17) is externally threaded with a fastening nut (18).

7. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 1, characterized in that: The walking frame (4) is provided with a docking groove (24), and a positioning bolt (25) extending into the inner cavity of the docking groove (24) is provided through the walking frame (4). The external thread of the positioning bolt (25) is connected to a guide block (19) located in the inner cavity of the docking groove (24). A guide groove is provided on the outer wall of the longitudinal guide frame (2), and the guide block (19) is slidably disposed inside the guide groove.

8. The phased array ultrasonic inspection device for fillet welds of cylindrical workpieces according to claim 1, characterized in that: Both the transverse guide (1) and the longitudinal guide (2) have scale lines (16) on their outer walls.

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