A crack detection device

Abstract

The utility model relates to crack detection technical field provides a kind of crack detection device, including detection platform and detection mechanism;Detection platform is spaced apart and is provided with horizontal shift positioning structure, turnover positioning structure and pipeline positioning structure, first support seat and second support seat are respectively slidably assembled on horizontal shift positioning structure and turnover positioning structure, multiple plug-in holes are set up on pipeline positioning structure;Detection mechanism includes mounting bracket, moving seat, visual inspection component and the dismounting rod for installing probe, mounting bracket is fixed on detection platform, moving seat is slidably erected on mounting bracket, visual inspection component is connected on mounting bracket, lighting enhancement element is provided on visual inspection component, dismounting rod is detachably inserted on the side of visual inspection component and can be lifted relative to detection platform;The utility model solves the problem that the detection position of the device cannot be changed according to the depth of the pipeline, and has the advantages of simple structure and low manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of crack detection technology, and more specifically, to a crack detection device. Background Technology

[0002] In industrial production, aerospace, rail transportation, and energy equipment, pipelines and metal or composite material components are subjected to cyclic loads, corrosive environments, or extreme temperatures over long periods, making them prone to microscopic or macroscopic cracks. If these cracks are not detected in time, they can lead to sudden component fracture, causing serious safety accidents and economic losses. Therefore, non-destructive testing technology for cracks is crucial for ensuring structural safety and reliability.

[0003] In the prior art, such as the non-destructive municipal pipeline crack detection device disclosed in CN214094030U, the device includes a pipeline, with a first outer shell and a second outer shell arranged vertically on the outer wall of the pipeline, and the first outer shell and the second outer shell are fixedly connected by bolts. A chemical reactant is contained inside the second outer shell. A first through hole is opened at the right end of the first outer shell, and a sealing frame fixedly connected to the first outer shell is installed on the left side of the first through hole. A sliding plate is fixedly connected inside the first through hole, and a sliding rod is slidably mounted on the upper end of the sliding plate. The left ends of both the sliding plate and the sliding rod pass through the first through hole and extend into the inner cavity of the sealing frame. A first limiting block is fixedly connected to the left end of the sliding rod, and a slider is fixedly connected to the right end of the sliding rod, with the lower end of the slider contacting the upper end of the sliding plate. The above-mentioned detection device has the following defects during use: it cannot change the detection position of the device according to the depth of the pipeline, making it unable to move and detect on the pipeline, which easily leads to omissions in the detection results. Utility Model Content

[0004] Therefore, in order to solve the problem of not being able to change the detection position of the device according to the depth of the pipeline, this utility model provides a crack detection device, the specific technical solution of which is as follows:

[0005] A crack detection device includes a detection table and a detection mechanism. The detection table is provided with a transverse positioning structure, a flipping positioning structure, and a pipe positioning structure spaced apart. A first support and a second support are slidably mounted on the transverse positioning structure and the flipping positioning structure, respectively. The pipe positioning structure has multiple insertion holes. The detection mechanism includes a mounting frame, a movable seat, a vision inspection component, and a disassembly rod for mounting a probe. The mounting frame is fixed to the detection table. The movable seat is slidably mounted on the mounting frame. The vision inspection component is connected to the mounting frame and has an illumination enhancement element. The disassembly rod is detachably inserted into one side of the vision inspection component and can be raised and lowered relative to the detection table.

[0006] The aforementioned crack detection device, by providing a first support and a second support, offers installation positions for different types of workpieces to be inspected, and the workpieces can move as the first and second supports slide; by providing a insertion hole, it provides an installation position for the pipe to be inspected; by providing a visual inspection component, it is suitable for detecting relatively obvious cracks, facilitating direct observation of the surface of the object being tested by personnel; by providing a disassembly rod, it facilitates the installation and fixing of various probes, and the raising and lowering of the disassembly rod can drive the probe to reciprocate towards the workpiece or reciprocate into the pipe to be inspected, which helps to improve the accuracy of the inspection; by providing an illumination enhancement element, it focuses the dispersed light source to a specific point or area, thereby improving the energy density and illumination effect of the light source.

[0007] Furthermore, the transverse positioning structure includes a positioning plate and a first guide rail fixed on the testing table. The first support is slidably mounted on the first guide rail, and the positioning plate is threadedly installed on the top of the first support and used to place the part to be tested.

[0008] Furthermore, the flipping positioning structure includes a second guide rail and a flipping component. Both the second guide rail and the flipping component are fixed on the detection table. The flipping component is disposed on one end of the second guide rail and is used to flip the workpiece to be detected.

[0009] Furthermore, the flipping positioning structure also includes a feeding assembly disposed on the other end of the second guide rail. The feeding assembly includes a feeding frame and two first clamping members disposed opposite each other. The feeding frame and the two first clamping members are both fixed on the detection table. A stacking space is formed on the feeding frame for feeding and placing the workpiece to be tested. The two first clamping members cooperate to clamp the workpiece to be tested and control the lifting and lowering of the workpiece to be tested.

[0010] Furthermore, the first clamping component includes a first lifting cylinder, a second lifting cylinder, a clamping plate, and a support plate. The first lifting cylinder and the second lifting cylinder are installed at intervals on the testing table. The first lifting cylinder is drivenly connected to the clamping plate, and the second lifting cylinder is drivenly connected to the support plate. The clamping plate is located above the support plate. Two protruding strips are respectively provided on both sides of one end of the clamping plate, and a protruding block is provided on one end of the support plate. Both the protruding strips and the protruding block are used to abut against the testing component.

[0011] Furthermore, the flipping assembly includes two second clamping members and two flipping members arranged opposite to each other. The structure of the second clamping members is the same as that of the first clamping member. The flipping member includes a first transverse cylinder, a rotary motor, and a flipping chuck for clamping the workpiece to be tested. The first transverse cylinder is fixed on the testing table. A first transverse plate is driven and sleeved on the output end of the first transverse cylinder. The rotary motor is installed on the top of the transverse plate. The rotary motor is used to control the rotation of the flipping chuck.

[0012] Furthermore, the pipe positioning structure includes a second transverse cylinder, a second transverse plate, and a mounting base. The second transverse cylinder is fixed on the testing platform, and the second transverse plate is driven and sleeved on the output end of the second transverse cylinder. The mounting base is fixedly installed on the top of the second transverse plate, and a plurality of insertion holes are respectively spaced on the mounting base for inserting and placing the pipe to be tested.

[0013] Furthermore, the visual inspection component includes a connecting housing, a light source element, and a light source diffuser. The connecting housing is inserted into the movable base, the light source element is installed inside the connecting housing, the illumination enhancement element is sleeved on the bottom of the light source element, and the light source diffuser is connected to the bottom of the connecting housing. The light source diffuser is located above the transverse positioning structure, the flip positioning structure, and the pipe positioning structure.

[0014] Furthermore, the light source diffuser cover has a light-illuminating hole, and the light-emitting direction of the light source is towards the light-illuminating hole.

[0015] Furthermore, a third lifting cylinder is provided on one side of the outer wall of the connecting housing, and a lifting plate is drivenly connected to the output end of the third lifting cylinder. The lifting plate has a positioning hole for the disassembly rod to be inserted, and the bottom of the disassembly rod is detachably connected and fixed to the probe. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the crack detection device according to an embodiment of the present invention;

[0017] Figure 2 This is a second schematic diagram of the crack detection device according to an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0019] Figure 4 yes Figure 2 A magnified schematic diagram of the partial structure of B in the diagram;

[0020] Figure 5 yes Figure 2 A magnified schematic diagram of the structure of C in the middle;

[0021] Figure 6 This is a schematic diagram of the probe structure in a crack detection device according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Lateral positioning structure; 11. First guide rail; 2. Flipping positioning structure; 21. Second guide rail; 22. Flipping assembly; 221. Second clamping component; 222. Flipping component; 2221. First lateral cylinder; 2222. Rotary motor; 2223. Flipping chuck; 23. Feeding assembly; 231. Feeding rack; 232. First clamping component; 2321. First lifting cylinder; 2322. Second lifting cylinder; 2323. Clamping plate; 2324. Support plate; 3. Pipe positioning structure; 4. Mounting frame; 5. Moving seat; 6. Vision inspection assembly; 61. Illumination enhancement element; 62. Connecting housing; 63. Light source component; 64. Light source diffuser; 7. Disassembly rod; 8. Third lifting cylinder; 81. Lifting plate; 9. Probe; 91. Excitation magnetic core; 92. Detection magnetic core; 93. Excitation coil; 94. Detection coil. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0028] like Figures 1-3 As shown, a crack detection device according to one embodiment of the present invention includes a detection table and a detection mechanism. The detection table is provided with a transverse positioning structure 1, a flip positioning structure 2 and a pipe positioning structure 3 at intervals. A first support and a second support are slidably mounted on the transverse positioning structure 1 and the flip positioning structure 2, respectively. The pipe positioning structure 3 is provided with a plurality of insertion holes. The detection mechanism includes a mounting frame 4, a movable seat 5, a vision detection component 6 and a disassembly rod 7 for mounting a probe 9. The mounting frame 4 is fixed on the detection table. The movable seat 5 is slidably mounted on the mounting frame 4. The vision detection component 6 is connected to the mounting frame 4. The vision detection component 6 is provided with an illumination enhancement element 61. The disassembly rod 7 is detachably inserted into one side of the vision detection component 6 and can be raised and lowered relative to the detection table.

[0029] The aforementioned crack detection device, by providing a first support and a second support, offers installation positions for different types of workpieces to be inspected, and the workpieces can move as the first and second supports slide; by providing a insertion hole, it provides an installation position for the pipe to be inspected; by providing a visual inspection component 6, it is suitable for detecting relatively obvious cracks, facilitating direct observation of the surface of the object being inspected by the operator; by providing a disassembly rod 7, it facilitates the installation and fixing of various probes 9, and the raising and lowering of the disassembly rod 7 can drive the probe 9 to reciprocate towards the workpiece or reciprocate into the pipe to be inspected, which helps to improve the accuracy of the inspection; by providing an illumination enhancement element 61, it focuses the dispersed light source to a specific point or area, thereby improving the energy density and illumination effect of the light source.

[0030] like Figure 1 and Figure 2 As shown, in one embodiment, the transverse positioning structure 1 includes a positioning plate and a first guide rail 11 fixed on the testing table. The first support is slidably mounted on the first guide rail 11, and the positioning plate is threadedly mounted on the top of the first support and used to place the workpiece to be tested.

[0031] like Figure 1 and Figure 2 As shown, in one embodiment, the flipping positioning structure 2 includes a second guide rail 21 and a flipping component 22. Both the second guide rail 21 and the flipping component 22 are fixed on the detection table. The flipping component 22 is disposed on one end of the second guide rail 21 and is used to flip the workpiece to be detected.

[0032] Specifically, the first guide rail 11 and the second guide rail 21 are both arranged in a horizontal direction, and they are spaced apart and arranged symmetrically.

[0033] like Figure 2 and Figure 4As shown, in one embodiment, the flipping positioning structure 2 further includes a feeding assembly 23 disposed on the other end of the second guide rail 21. The feeding assembly 23 includes a feeding rack 231 and two opposing first clamping members 232. The feeding rack 231 and the two first clamping members 232 are both fixed on the testing table. A stacking space is formed on the feeding rack 231 for placing the workpiece to be tested. The two first clamping members 232 cooperate to clamp the workpiece to be tested and control its lifting and lowering. The operator can feed the workpiece to be tested through the top of the feeding rack 231. The workpiece to be tested is fed in by gravity and enters the stacking space. The two first clamping members 232 cooperate to clamp the workpiece to be tested in the stacking space and can move it to the second support for placement.

[0034] like Figure 4 As shown, in one embodiment, the first clamping member 232 includes a first lifting cylinder 2321, a second lifting cylinder 2322, a clamping plate 2323, and a support plate 2324. The first lifting cylinder 2321 and the second lifting cylinder 2322 are installed at intervals on the testing table. The first lifting cylinder 2321 is operatively connected to the clamping plate 2323, and the second lifting cylinder 2322 is operatively connected to the support plate 2324. The clamping plate 2323 is located above the support plate 2324. Two protruding strips are respectively provided on both sides of one end of the clamping plate 2323, and a protrusion is provided on one end of the support plate 2324. Both the protruding strips and the protrusion are used to abut against the test piece. By providing the first lifting cylinder 2321 and the second lifting cylinder 2322, the height positions of the clamping plate 2323 and the support plate 2324 are adjusted respectively, thereby adjusting the clamping gap between the clamping plate 2323 and the support plate 2324, which is beneficial for adapting to test pieces of different thicknesses.

[0035] like Figure 2 and Figure 5As shown, in one embodiment, the flipping assembly 22 includes two second clamping members 221 and two flipping members 222 arranged opposite to each other. The structure of the second clamping members 221 is the same as that of the first clamping member 232. The flipping member 222 includes a first transverse cylinder 2221, a rotary motor 2222, and a flipping chuck 2223 for clamping the workpiece to be tested. The first transverse cylinder 2221 is fixed on the testing table. A first transverse plate is driven sleeved on the output end of the first transverse cylinder 2221. A rotary motor 2222 is installed on the top of the transverse plate. The rotary motor 2222 is used to control the rotation of the flipping chuck 2223. Thus, by providing a first transverse cylinder 2221, the position of the first transverse plate is moved, thereby adjusting the clamping position of the flipping chuck 2223 so that it abuts against the surface of the workpiece to be inspected; by providing a rotary motor 2222, the rotary motor 2222 controls the rotation state of the flipping chuck 2223, thereby using the rotation of the flipping chuck 2223 to complete the flipping or angle adjustment of the workpiece to be inspected, which facilitates the improvement of the accuracy of subsequent crack detection.

[0036] In one embodiment, the pipe positioning structure 3 includes a second transverse cylinder, a second transverse plate, and a mounting base. The second transverse cylinder is fixed to the testing platform, and the second transverse plate is drivenly connected to the output end of the second transverse cylinder. The mounting base is fixedly installed on the top of the second transverse plate, and multiple insertion holes are spaced apart on the mounting base for inserting and placing the pipe to be tested. By providing the second transverse cylinder, the movement of the second transverse plate is controlled, thereby controlling the position movement of the mounting base and adjusting the testing position of the pipe to be tested on the mounting base. This facilitates subsequent crack detection operations.

[0037] like Figures 1-3 As shown, in one embodiment, the visual inspection component 6 includes a connecting housing 62, a light source 63, and a light source diffuser 64. The connecting housing 62 is inserted into the movable base 5. The light source 63 is installed inside the connecting housing 62. An illumination enhancement element 61 is sleeved on the bottom of the light source 63. The light source diffuser 64 is connected to the bottom of the connecting housing 62 and is located above the transverse positioning structure 1, the flip positioning structure 2, and the pipe positioning structure 3. The illumination enhancement element 61 can focus the light emitted by the light source 63 into a strong beam, improving the brightness and range of the illumination, while also optimizing the light distribution for more uniform illumination. The light source diffuser 64 can scatter the light more evenly, reducing local overbrightness and improving the aesthetics and comfort of the lighting effect.

[0038] Preferably, the illumination enhancement element 61 is a condenser lens.

[0039] In one embodiment, a light-emitting hole is provided on the light-emitting diffuser 64, and the light-emitting direction of the light source 63 is towards the light-emitting hole.

[0040] like Figure 3 As shown, in one embodiment, a third lifting cylinder 8 is provided on one side of the outer wall of the housing 62. A lifting plate 81 is drivenly connected to the output end of the third lifting cylinder 8. The lifting plate 81 has a positioning hole for the insertion of the disassembly rod 7. The bottom of the disassembly rod 7 is detachably connected and fixed to the probe 9. By providing the third lifting cylinder 8, the lifting plate 81 can be driven to move up and down, thereby controlling the up and down movement of the disassembly rod 7. This allows the probe 9 to reciprocate to approach the workpiece to be inspected or reciprocate to enter the inside of the pipe to be inspected, which is beneficial for crack detection operations.

[0041] like Figure 6 As shown, preferably, the probe 9 includes an excitation magnetic core 91 and multiple detection magnetic cores 92. One end of the excitation magnetic core 91 is detachably inserted into the disassembly / removal rod 7, and the other end of the excitation magnetic core 91 is connected to the multiple detection magnetic cores 92. An excitation coil 93 is wound on the excitation magnetic core 91, and a detection coil 94 is wound on the detection magnetic cores 92. After being powered on, the excitation magnetic core 91 and the detection magnetic cores 92 simultaneously excite and detect the magnetic field, performing a rapid scan of the inside of the workpiece or pipe to be tested. Differential detection can then be performed using the multiple detection magnetic cores 92, effectively improving the detection speed, sensitivity, and accuracy.

[0042] like Figure 6 As shown, specifically, there are 4 detection magnetic cores 92. The 4 detection magnetic cores 92 are evenly and symmetrically distributed on a plane with the excitation magnetic core 91 as the central axis. Adjacent detection magnetic cores 92 are perpendicular to each other, and the planes formed by the excitation magnetic core 91 and the detection magnetic cores 92 are perpendicular to each other.

[0043] The probe 9 mentioned above is an eddy current detection probe that uses the eddy current method for crack detection.

[0044] In another embodiment, the probe is a magnetic particle testing probe, an ultrasonic testing probe, or a radiographic testing probe, etc. The above probe types and their detection principles are all existing technologies, and their specific structures or technical effects will not be elaborated upon here.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A crack detection device, characterized in that, include: The testing platform is provided with a transverse positioning structure, a flip positioning structure and a pipe positioning structure at intervals. The transverse positioning structure and the flip positioning structure are respectively slidably equipped with a first support and a second support. The pipe positioning structure is provided with a plurality of insertion holes. The testing mechanism includes a mounting frame, a movable seat, a vision testing component, and a mounting rod for mounting a probe. The mounting frame is fixed on the testing table, the movable seat is slidably mounted on the mounting frame, the vision testing component is connected to the mounting frame, the vision testing component is provided with an illumination enhancement element, and the mounting rod is detachably inserted into one side of the vision testing component and can be raised and lowered relative to the testing table.

2. The crack detection device according to claim 1, characterized in that, The transverse positioning structure includes a positioning plate and a first guide rail fixed on the testing table. The first support is slidably mounted on the first guide rail. The positioning plate is threaded onto the top of the first support and is used to place the part to be tested.

3. The crack detection device according to claim 1, characterized in that, The flipping positioning structure includes a second guide rail and a flipping component. Both the second guide rail and the flipping component are fixed on the detection table. The flipping component is disposed on one end of the second guide rail and is used to flip the workpiece to be detected.

4. The crack detection device according to claim 3, characterized in that, The flipping positioning structure also includes a feeding assembly disposed on the other end of the second guide rail. The feeding assembly includes a feeding frame and two first clamping members disposed opposite each other. The feeding frame and the two first clamping members are fixed on the detection table. A stacking space is formed on the feeding frame for feeding and placing the workpiece to be tested. The two first clamping members cooperate to clamp the workpiece to be tested and control the lifting and lowering of the workpiece to be tested.

5. The crack detection device according to claim 4, characterized in that, The first clamping component includes a first lifting cylinder, a second lifting cylinder, a clamping plate, and a support plate. The first lifting cylinder and the second lifting cylinder are installed at intervals on the testing table. The first lifting cylinder is drivenly connected to the clamping plate, and the second lifting cylinder is drivenly connected to the support plate. The clamping plate is located above the support plate. Two protruding strips are respectively provided on both sides of one end of the clamping plate, and a protruding block is provided on one end of the support plate. The protruding strips and the protruding block are used to abut against the testing component.

6. The crack detection device according to claim 5, characterized in that, The flipping assembly includes two second clamping members and two flipping members arranged opposite to each other. The structure of the second clamping members is the same as that of the first clamping members. The flipping member includes a first transverse cylinder, a rotary motor, and a flipping chuck for clamping the workpiece to be tested. The first transverse cylinder is fixed on the testing table. A first transverse plate is driven and sleeved on the output end of the first transverse cylinder. The rotary motor is installed on the top of the transverse plate and is used to control the rotation of the flipping chuck.

7. The crack detection device according to claim 1, characterized in that, The pipeline positioning structure includes a second transverse cylinder, a second transverse plate, and a mounting base. The second transverse cylinder is fixed on the testing platform. The second transverse plate is driven and sleeved on the output end of the second transverse cylinder. The mounting base is fixedly installed on the top of the second transverse plate. A plurality of insertion holes are respectively opened at intervals on the mounting base and are used for inserting and placing the pipeline to be tested.

8. The crack detection device according to claim 1, characterized in that, The visual inspection component includes a connecting housing, a light source element, and a light source diffuser. The connecting housing is inserted into the movable base, the light source element is installed inside the connecting housing, the illumination enhancement element is sleeved on the bottom of the light source element, and the light source diffuser is connected to the bottom of the connecting housing. The light source diffuser is located above the transverse positioning structure, the flip positioning structure, and the pipe positioning structure.

9. The crack detection device according to claim 8, characterized in that, The light source diffuser has a light-illuminating hole, and the light-emitting direction of the light source is towards the light-illuminating hole.

10. The crack detection device according to claim 9, characterized in that, A third lifting cylinder is provided on one side of the outer wall of the connecting housing. A lifting plate is drivenly connected to the output end of the third lifting cylinder. A positioning hole is provided on the lifting plate for the disassembly rod to be inserted. The bottom of the disassembly rod is detachably connected and fixed to the probe.

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