A curved surface adaptive detection device

Abstract

This utility model relates to a surface adaptive inspection device, including a probe assembly. The probe assembly includes a probe holder on which a probe is mounted. The surface adaptive inspection device also includes a chain assembly, which includes several chain links connected in sequence. The end of each chain link is hinged to an adjacent chain link. The bottom of each chain link is provided with a magnetic suction device and a caster wheel. The distance between the bottom of the caster wheel and the bottom surface of the chain link is greater than the distance between the bottom of the magnetic suction device and the bottom surface of the chain link. The probe holder is connected to the chain links of the chain assembly. This surface adaptive inspection device can perform efficient flaw detection on irregularly shaped workpieces.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to a surface adaptive detection device. Background Technology

[0002] Ultrasonic flaw detection devices are widely used in the inspection of workpieces. Chinese Patent CN218003329U discloses a compact ultrasonic scanning device for both plates and pipes. Magnetic rollers are mounted on both ends of the handle via magnetic wheel fixing frames, and the probe mounting bracket is mounted on the handle via a connecting beam. During scanning, the operator moves the probe along the handle, allowing it to move across the surface of the plate or pipe, thus achieving flaw detection.

[0003] This type of ultrasonic scanning device is mainly used for scanning and flaw detection of flat plates and circular pipes. However, in actual inspection, there are a large number of irregularly shaped workpieces with non-planar or cylindrical surfaces, such as the blades of large windmills and turbines, whose surfaces are irregularly twisted curved surfaces. When inspecting workpieces with similar surfaces, existing flat plate and pipe ultrasonic flaw detection devices are either completely unusable or have very poor performance and efficiency. Therefore, it is necessary to design a new ultrasonic testing device that can always maintain coupling with the surface of irregularly shaped workpieces, thereby achieving efficient flaw detection of irregularly shaped workpieces. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a surface adaptive inspection device that can perform efficient flaw detection on irregularly shaped workpieces.

[0005] The adaptive surface detection device of this utility model includes a probe assembly, which includes a probe holder on which a probe is mounted. The adaptive surface detection device also includes a plate chain assembly, which includes a plurality of chain links connected in sequence. The ends of each chain link are hinged to adjacent chain links. The bottom of each chain link is provided with a magnetic attraction device and a universal wheel. The distance between the bottom end of the universal wheel and the bottom surface of the chain link is greater than the distance between the bottom end of the magnetic attraction device and the bottom surface of the chain link. The probe holder is connected to the chain link of the plate chain assembly.

[0006] The advantage of this surface adaptive detection device is that it includes several chain links that are hinged together from end to end. The bottom of each chain link is equipped with a magnetic suction device and a universal wheel. The distance between the bottom of the universal wheel and the bottom surface of the chain link is greater than the distance between the magnetic suction device and the bottom surface of the chain link. The probe fixing frame is connected to the chain links of the chain plate assembly.

[0007] This type of surface adaptive inspection device, because the chain plate assembly is formed by several chain links hinged together, has a flexible and deformable plate chain structure as a whole. When the inspection device scans, the chain plate assembly can deform according to the surface of the workpiece being inspected, so that the probe on the probe holder can always maintain coupling with the workpiece being inspected, thereby achieving efficient flaw detection of workpieces with irregular surfaces.

[0008] Furthermore, in the curved surface adaptive detection device of this utility model, the bottom surface of the chain link is provided with a magnetic positioning groove, and the magnetic device is installed in the magnetic positioning groove.

[0009] The magnetic positioning groove enables the positioning and installation of the magnetic device.

[0010] Furthermore, in the curved surface adaptive detection device of this utility model, universal wheel positioning grooves are also provided on both sides of the magnetic positioning groove, and the universal wheel is installed in the universal wheel positioning groove.

[0011] The swivel wheel positioning groove makes it easier for operators to install the swivel wheels.

[0012] Furthermore, the curved surface adaptive detection device of this utility model also includes a torsion spring mounting component. The torsion spring mounting component includes a fixed part fixedly connected to the chain link, a movable part hinged to the fixed part, a hinge shaft connecting the fixed part and the movable part, and a torsion spring disposed on the hinge shaft. The end of the torsion spring is connected to the fixed part, and the middle part of the torsion spring is connected to the movable part. The probe fixing frame is hinged to the movable part, and the rotation axis of the probe fixing frame is perpendicular to the rotation axis of the movable part.

[0013] The torsion spring mounting bracket facilitates the connection between the probe holder and the chain plate assembly for the operator. At the same time, the torsion spring allows the probe holder to drive the probe to be tightly coupled to the surface of the workpiece under the torsion force of the torsion spring, and to hinge the probe holder to the movable part. This further improves the flexibility of the probe holder, thereby further improving the coupling effect between the probe and the workpiece.

[0014] Furthermore, in the curved surface adaptive detection device of this utility model, a limit pin is provided at the bottom end of the movable part.

[0015] The limit pin is designed to limit the rotation angle of the probe holder, preventing it from rotating too much and colliding with the surface of the plate.

[0016] In this embodiment, there are two limiting pins, which are located at the bottom end of the bottom wall of the movable part and symmetrically arranged on the left and right sides of the shaft hole, thereby achieving forward and reverse limiting of the probe holder. During installation, the probe holder is positioned above the two limiting pins.

[0017] Furthermore, in the curved surface adaptive detection device of this utility model, the probe fixing frame includes a frame body, which is hinged to the movable part via a rotating shaft, and a probe seat is provided at the other end of the frame body, and the probe is fixedly mounted on the probe seat.

[0018] The frame and probe mount design facilitates probe installation for operators.

[0019] Furthermore, the curved surface adaptive detection device of this utility model also includes an encoder assembly, which includes an encoder housing, an encoder connector hinged to the encoder housing, an encoder disposed inside the encoder housing, and a roller connected to the encoder input shaft. The end of the encoder connector is fixedly disposed on a chain link.

[0020] The encoder component is configured to detect the movement distance of the detection device.

[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following describes the embodiments of this utility model in detail. Attached Figure Description

[0022] Figure 1 This is a 3D view of the surface adaptive detection device.

[0023] Figure 2 This is a 3D view of the plate chain assembly.

[0024] Figure 3 It is a diagram showing the assembly of the chain links, magnetic closure, and casters.

[0025] Figure 4 It is a three-dimensional diagram of a link.

[0026] Figure 5 This is another three-dimensional view of the chain segment.

[0027] Figure 6 This is a 3D view of the probe assembly.

[0028] Figure 7 This is another 3D view of the probe assembly.

[0029] Figure 8 It is a diagram showing the assembly of the probe holder, probe base, and probe.

[0030] Figure 9 This is a 3D view of the torsion spring mounting component.

[0031] Figure 10 This is a 3D view of the encoder assembly.

[0032] Figure 11 This is a diagram showing the usage status of the surface adaptive detection device.

[0033] In the diagram, 1 is the probe holder, 2 is the probe, 3 is the chain assembly, 4 is the chain link, 5 is the magnetic suction device, 6 is the caster wheel, 7 is the positioning plate, 8 is the connecting plate, 9 is the magnetic positioning groove, 10 is the caster wheel positioning groove, 11 is the caster wheel housing, 12 is the caster wheel body, 13 is the torsion spring mounting part, 14 is the fixed part, 15 is the movable part, 16 is the hinge shaft, 17 is the torsion spring, 18 is the bottom arm, 19 is the connecting arm, 20 is the shaft hole, 21 is the frame, 22 is the probe seat, 23 is the encoder assembly, 24 is the encoder housing, 25 is the encoder connector, 26 is the roller, 27 is the spring, 28 is the connecting shaft, and 29 is the limit pin. Detailed Implementation

[0034] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0035] Example 1: See Figures 1 to 11 The surface adaptive detection device of this embodiment includes a probe assembly, which includes a probe holder 1 and a probe 2 mounted on the probe holder. The surface adaptive detection device also includes a plate chain assembly 3, which includes a plurality of chain links 4 connected in sequence. The ends of each chain link are respectively hinged to adjacent chain links. A magnetic suction device 5 and a universal wheel 6 are provided at the bottom of the chain link. The distance between the bottom end of the universal wheel and the bottom surface of the chain link is greater than the distance between the bottom end of the magnetic suction device and the bottom surface of the chain link. The probe holder is connected to the chain link of the plate chain assembly.

[0036] The curved surface adaptive detection device includes several chain links that are hinged together from end to end. A magnetic suction device and a universal wheel are installed at the bottom of the chain links. The distance between the bottom of the universal wheel and the bottom surface of the chain link is greater than the distance between the magnetic suction device and the bottom surface of the chain link. The probe fixing frame is connected to the chain links of the chain plate assembly.

[0037] This type of surface adaptive inspection device, because the chain plate assembly is formed by several chain links hinged together, has a flexible and deformable plate chain structure as a whole. When the inspection device scans, the chain plate assembly can deform according to the surface of the workpiece being inspected, so that the probe on the probe holder can always maintain coupling with the workpiece being inspected, thereby achieving efficient flaw detection of workpieces with irregular surfaces.

[0038] The probe holder is used to mount the probe for scanning and flaw detection of the sheet metal.

[0039] The plate chain assembly is used to mount the probe holder, thereby driving the probe holder and its probe to move along the workpiece surface, enabling continuous scanning of the workpiece surface. The links are connected by a hinge structure, which gives the entire plate chain assembly good flexibility and adaptability, allowing it to conform to workpiece surfaces of different shapes and curvatures.

[0040] The magnetic suction device is used to attach the entire detection device to the surface of the workpiece. At the same time, the universal wheels at the bottom can move the entire detection device flexibly on the workpiece surface with the assistance of the magnetic suction device, thereby improving the stability and efficiency of the detection process.

[0041] The distance between the bottom of the caster wheel and the bottom of the chain link is greater than the distance between the bottom of the magnetic suction device and the bottom of the chain link. This way, during scanning, the bottom of the caster wheel is closer to the surface of the workpiece, which allows the magnetic suction device to perform non-contact adsorption on the metal workpiece, thereby reducing friction between the detection device and the workpiece and improving the flexibility of the detection device's movement.

[0042] In this embodiment, two positioning plates 7 are symmetrically installed on one side of the chain link, and a connecting plate 8 is provided on the other side of the chain link. The connecting plate is located between the two positioning plates of the adjacent chain link and is connected to the positioning plate through a rotating shaft, thereby realizing the hinge between the adjacent chain links.

[0043] Preferably, the bottom surface of the chain link is provided with a magnetic positioning groove 9, and the magnetic device is installed in the magnetic positioning groove.

[0044] The magnetic positioning groove enables the positioning and installation of the magnetic device.

[0045] In practice, the magnetic positioning groove is a square groove that runs through the chain link along the width direction. The magnetic attraction device is preferably a rectangular magnet. Two rectangular magnets are fixedly installed in the square magnetic positioning groove by bolts. The bottom surface of the rectangular magnet is basically flush with the bottom surface of the chain link. This ensures that its bottom end is above the bottom end of the universal joint during scanning, thereby performing non-contact adsorption on the workpiece.

[0046] Preferably, universal wheel positioning grooves 10 are also provided on both sides of the magnetic positioning groove, and the universal wheel is installed in the universal wheel positioning groove.

[0047] The swivel wheel positioning groove makes it easier for operators to install the swivel wheels.

[0048] In this embodiment, the universal wheel positioning groove is a circular groove that is adapted to the cylindrical universal wheel housing 11. The top of the universal wheel housing is fixedly installed in the universal wheel positioning groove, and its bottom end protrudes from the surface of the chain link. The bottom end of the universal wheel body 12 extends out from the opening at the bottom end of the universal wheel housing, thereby ensuring that the bottom end of the universal wheel can contact the workpiece surface, while the magnetic suction device is separated from the workpiece surface. This not only enables the magnetic suction device to adsorb the plate, but also separates the magnetic suction device from the plate surface to reduce friction between it and the plate, making the detection device as a whole easier to move on the plate surface.

[0049] Meanwhile, the casters on both sides of the magnetic suction device ensure more stable movement of the plate chain assembly.

[0050] Preferably, the device also includes a torsion spring mounting component 13, which includes a fixed part 14 fixedly connected to the chain link, a movable part 15 hinged to the fixed part, a hinge shaft 16 connecting the fixed part and the movable part, and a torsion spring 17 disposed on the hinge shaft. The end of the torsion spring is connected to the fixed part, and the middle part of the torsion spring is connected to the movable part. The probe mounting bracket is hinged to the movable part, and the rotation axis of the probe mounting bracket is perpendicular to the rotation axis of the movable part.

[0051] The torsion spring mounting bracket facilitates the connection between the probe holder and the chain plate assembly for the operator. At the same time, the torsion spring allows the probe holder to drive the probe to be tightly coupled to the surface of the workpiece under the torsion force of the torsion spring, and to hinge the probe holder to the movable part. This further improves the flexibility of the probe holder, thereby further improving the coupling effect between the probe and the workpiece.

[0052] In this embodiment, both the fixed part and the movable part are U-shaped parts. The U-shaped part includes a bottom arm 18 and connecting arms 19 at both ends of the bottom wall. The fixed part is fixedly installed on one of the chain links of the chain plate assembly by bolts. The two ends of the hinge shaft pass through the connecting arms on both sides of the fixed part and the movable part, respectively, thereby realizing the hinge connection between the fixed part and the movable part.

[0053] A shaft hole 20 is provided on the bottom arm of the movable part. The rotating shaft connecting the movable part and the probe fixing frame is set in the shaft hole and is perpendicular to the aforementioned hinge shaft, thereby realizing the hinge connection between the probe fixing frame and the movable part.

[0054] The torsion spring is mounted on the hinge shaft, with its two ends respectively mounted on the inner wall of the fixed part. The U-shaped part formed by the bending of its middle part contacts the bottom arm of the movable part, thereby pressing the probe fixing frame and the probe on it against the surface of the plate.

[0055] Preferably, a limiting pin 29 is provided at the bottom end of the movable part.

[0056] The limit pin is designed to limit the rotation angle of the probe holder, preventing it from rotating too much and colliding with the surface of the plate.

[0057] In this embodiment, there are two limiting pins, which are located at the bottom end of the bottom wall of the movable part and symmetrically arranged on the left and right sides of the shaft hole, thereby achieving forward and reverse limiting of the probe holder. During installation, the probe holder is positioned above the two limiting pins.

[0058] Preferably, the probe mounting bracket includes a frame 21, which is hinged to the movable part via a pivot, and a probe seat 22 is provided at the other end of the frame, with the probe fixedly mounted on the probe seat.

[0059] The frame and probe mount design facilitates probe installation for operators.

[0060] Specifically, the frame is a U-shaped frame, the crossbeam of the U-shaped frame is connected to the movable part through a rotating shaft, the probe seat is fixed to the open end of the U-shaped frame with bolts, and the probe is fixed to the probe seat with bolts.

[0061] Preferably, the encoder assembly 23 is also included. The encoder assembly includes an encoder housing 24, an encoder connector 25 hinged to the encoder housing, an encoder disposed inside the encoder housing, and a roller 26 connected to the encoder input shaft. The end of the encoder connector is fixedly disposed on a chain link.

[0062] The encoder component is configured to detect the movement distance of the detection device.

[0063] The encoder housing is used to mount the encoder and rollers, preferably magnetic wheels, to fit against the workpiece surface and drive the encoder input shaft to rotate. The encoder connector connects the encoder housing and the plate chain assembly. A spring 27 can be installed between the connector and the encoder housing to ensure tight contact between the rollers on the encoder housing and the plate material. The spring can be wound around the connecting shaft 28 that connects the encoder housing and the encoder connector, with both ends of the spring contacting the encoder housing and the encoder connector respectively, thereby achieving tight contact between the rollers and the plate material and improving the detection accuracy of displacement detection.

[0064] During operation, the operator first places the plate chain assembly on the surface of the plate. The magnetic attraction device at the bottom of the chain link attracts the entire detection device to the surface of the plate. The universal wheel at the bottom of the chain link is in close contact with the plate, and the roller on the encoder housing is in close contact with the plate. The probe on the probe holder is tightly coupled to the plate. After that, the operator can drive the plate chain assembly to move along the surface of the plate manually or electrically. During the movement, the probe can perform flaw detection on the plate.

[0065] The above description is merely a preferred embodiment of this utility model, used to assist those skilled in the art in implementing the corresponding technical solutions, and is not intended to limit the scope of protection of this utility model. The scope of protection of this utility model is defined by the appended claims. It should be noted that, for those skilled in the art, several equivalent improvements and modifications can be made based on the technical solutions of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Furthermore, it should be understood that although this specification describes the embodiments as described above, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions of each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A curved surface self-adapting detection device, comprising a probe assembly, the probe assembly comprising a probe fixing frame (1) on which a probe (2) is arranged, characterized in that: The surface adaptive detection device further includes a plate chain assembly (3), which includes several chain links (4) connected in sequence. The ends of each chain link are respectively hinged to the adjacent chain links. A magnetic suction device (5) and a universal wheel (6) are provided at the bottom of the chain link. The distance between the bottom end of the universal wheel and the bottom surface of the chain link is greater than the distance between the bottom end of the magnetic suction device and the bottom surface of the chain link. The probe fixing frame is connected to the chain link of the plate chain assembly.

2. The curved surface adaptive detection device according to claim 1, characterized in that: The bottom surface of the chain link is provided with a magnetic positioning groove (9), and the magnetic device is installed in the magnetic positioning groove.

3. The curved surface adaptive detection device according to claim 2, characterized in that: The magnetic positioning groove is also provided with universal wheel positioning grooves (10) on both sides, and the universal wheel is installed in the universal wheel positioning groove.

4. The curved surface adaptive detection device according to claim 1, characterized in that: It also includes a torsion spring mounting component (13), which includes a fixed part (14) fixedly connected to the chain link, a movable part (15) hinged to the fixed part, a hinge shaft (16) connecting the fixed part and the movable part, and a torsion spring (17) disposed on the hinge shaft. The end of the torsion spring is connected to the fixed part, and the middle part of the torsion spring is connected to the movable part. The probe mounting bracket is hinged to the movable part, and the rotation axis of the probe mounting bracket is perpendicular to the rotation axis of the movable part.

5. The curved surface adaptive detection device according to claim 4, characterized in that: The bottom of the movable part is provided with a limit pin.

6. The curved surface adaptive detection device according to claim 4, characterized in that: The probe mounting bracket includes a frame (21), which is hinged to the movable part via a pivot. A probe seat (22) is provided at the other end of the frame, and the probe is fixedly mounted on the probe seat.

7. The curved surface adaptive detection device according to claim 1, wherein: It also includes an encoder assembly (23), which includes an encoder housing (24), an encoder connector (25) hinged to the encoder housing, an encoder disposed in the encoder housing, and a roller (26) connected to the encoder input shaft. The end of the encoder connector is fixedly disposed on a chain link.

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