Magnetic defect detector

Abstract

The utility model discloses a magnetic defect detector, and relates to the technical field of magnetic defect detectors, the multi-head magnetic defect detector comprises a main body and also comprises a fixed cylinder arranged at the rear side of the main body, an adjusting assembly is arranged in the fixed cylinder, and the adjusting assembly comprises a threaded rod and a rotating valve; the connecting cylinder is arranged on the bottom surface of the main body and the threaded rod. Through the arrangement of the clamping assembly, when the probe is replaced, the two sets of connecting plates are pulled, at the moment, the connecting springs are in a stretched state, the connecting plates move to pull out the inserting columns from the interior of the connecting cylinder, and therefore the probe can be replaced, and when the probe is installed, the replaced probe is inserted into the connecting cylinder, the connecting plates are loosened, and the probe is replaced. The connecting spring drives the connecting plate to reset, and the inserting column is inserted into the connecting cylinder and the inserting hole in the surface of the probe, so that the probe is fixed, and the device can replace different probes according to different detection scenes and working types.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle flaw detectors, in particular to a magnetic particle flaw detector. Background Art

[0002] The magnetic particle detector is suitable for wet magnetic particle detection of surface and near-surface cracks and minor defects caused by casting, quenching, machining, fatigue and other factors on various small and medium-sized parts such as crankshafts, camshafts, spline shafts, etc. It is the preferred model for single-piece inspection, small-batch sampling and large-volume inspection.

[0003] The utility model patent with the announcement number CN220120765U discloses a magnetic particle flaw detector, which includes a main unit of the flaw detector, one end of a connecting line is connected to the main unit of the flaw detector, and the other end of the connecting line is connected to the probe, and a handle is fixed to the upper end face of the probe; it also includes: a rotating shaft, a bearing connected to the probe, and a fixed rod is also provided on the side of the probe, and a sliding rod is connected to the fixed rod, and a universal wheel is installed at the lower end of the sliding rod; a cross bar is fixed to the fixed rod, and a detection rod is vertically fixed to the lower end face of the cross bar. This multi-head magnetic particle flaw detector can facilitate the movement of the probe on the part through the rolling action of the universal wheel to achieve multi-point detection, and can effectively reduce the labor intensity of the user, making the device more convenient to use. By adjusting the position of the fixed rod, the distance between the two sets of detection rods can be adjusted, so that the detection range can be adjusted according to actual needs, thereby improving the adaptability of the device.

[0004] However, when the device is in use, it is not easy to replace the probe according to different detection scenarios and work types. Utility Model Content

[0005] The utility model provides a magnetic particle flaw detector to solve the existing problem that it is not easy to replace the probe according to different detection scenarios and work types during use.

[0006] The utility model provides the following technical solution: a magnetic particle flaw detector, comprising a main body, and also comprising: a fixed cylinder arranged at the rear side of the main body, an adjustment component being arranged inside the fixed cylinder, the adjustment component comprising a threaded rod and a rotary valve; a connecting cylinder arranged on the bottom surface of the main body and the threaded rod, two groups of the connecting cylinders having surfaces fixedly connected thereto with clamping components, the two groups of the clamping components each comprising two groups of telescopic columns, two groups of connecting springs, a connecting plate and several groups of plug-in columns; probes arranged inside the two groups of connecting cylinders, two groups of limit assemblies being arranged on surfaces of the two groups of probes, the four groups of limit assemblies each comprising a limit spring, a limit column and a pull plate.

[0007] As a preferred technical solution of the present invention, the threaded rod is arranged inside the fixed cylinder, and one end of the threaded rod is fixedly connected to the rotary valve.

[0008] As a preferred technical solution of the present invention, the two groups of telescopic columns are fixedly connected to the surfaces of the two groups of connecting tubes, the outer sides of the four groups of telescopic columns are sleeved with connecting springs, one end of the four groups of connecting springs is fixedly connected to two groups of connecting plates, and one side of the two groups of connecting plates is fixedly connected to several groups of plug-in columns.

[0009] As an optimal technical solution of the present invention, the four groups of limit springs are all arranged inside the probe, one end of the four groups of limit springs are fixedly connected to the limit column, and the surfaces of the four groups of limit columns are fixedly connected to a pull plate.

[0010] As a preferred technical solution of the present invention, a control button is provided on the bottom surface of the main body, and a display screen is provided on one side of the main body.

[0011] As a preferred technical solution of the present invention, a mounting plate is fixedly connected to one side of the main body, and an adjustment button is provided on the surface of the mounting plate.

[0012] As a preferred technical solution of the present invention, a lighting lamp is fixedly connected to one side of the bottom surface of the main body, and a control switch is provided on the top surface of the main body.

[0013] As a preferred technical solution of the present invention, a placement groove is provided on the surface of the main body, and a battery pack is fixedly connected to the interior of the placement groove.

[0014] Compared with the existing technology, the utility model provides a magnetic particle flaw detector with the following beneficial effects:

[0015] The multi-head magnetic particle flaw detector is provided with a snap-on assembly. When replacing the probe, the two sets of connecting plates are pulled. At this time, the connecting spring is in a stretched state, and the connecting plate moves to draw the plug-in column out from the inside of the connecting tube, so that the probe can be replaced. During installation, the replaced probe is inserted into the inside of the connecting tube, the connecting plate is loosened, and the connecting spring drives the connecting plate to reset. The plug-in column is inserted into the plug-in hole on the surface of the connecting tube and the probe, thereby fixing the probe, so that the device can replace different probes according to different detection scenarios and work types.

[0016] The multi-head magnetic particle flaw detector, through the setting of the adjustment component, rotates the rotary valve during use. The rotation of the rotary valve drives the threaded rod to rotate. The rotation of the threaded rod causes one set of connecting cylinders to move on the threaded rod, so that the device can adjust the distance between the two sets of probes. When inspecting workpieces of different diameters, the operator can quickly adjust the spacing between the probes without having to replace the entire flaw detector or use additional tools, thereby improving the work efficiency of the staff.

[0017] The multi-head magnetic particle flaw detector is provided with a limit assembly. When in use, the pull plate is pulled, and the movement of the pull plate drives the limit column to move, and the limit column is pulled out from the plug hole on the surface of the probe. At this time, the limit spring is in a stretched state, and the probe is rotated to a suitable position. The pull plate is released, and the limit spring drives the limit column to reset, and the limit column fixes it, so that the probe can adjust its angle according to the detection requirements, so that the device can detect defects at different angles on both sides of the weld, thereby improving the comprehensiveness of the flaw detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0022] In the figure: 1. Main body; 2. Fixed cylinder; 3. Adjustment assembly; 301. Threaded rod; 302. Rotary valve; 4. Connecting cylinder; 5. Clamping assembly; 501. Telescopic column; 502. Connecting spring; 503. Connecting plate; 504. Plug-in column; 6. Probe; 7. Limiting assembly; 701. Limiting spring; 702. Limiting column; 703. Pull plate; 8. Control button; 9. Display screen; 10. Mounting plate; 11. Adjustment button; 12. Light; 13. Control switch; 14. Battery pack. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-4The utility model discloses a magnetic particle flaw detector, including a main body 1, and also including: a fixed cylinder 2 arranged at the rear side of the main body 1, an adjusting component 3 is arranged inside the fixed cylinder 2, and the adjusting component 3 includes a threaded rod 301 and a rotary valve 302; a connecting cylinder 4 arranged on the bottom surface of the main body 1 and the threaded rod 301, and the surfaces of two groups of connecting cylinders 4 are fixedly connected with a clamping component 5, and the two groups of clamping components 5 each include two groups of telescopic columns 501, two groups of connecting springs 502, a connecting plate 503 and a plurality of groups of plug-in columns 504; a probe 6 arranged inside the two groups of connecting cylinders 4, and the surfaces of the two groups of probes 6 are provided with two groups of limit assemblies 7, and the four groups of limit assemblies 7 each include a limit spring 701, a limit column 702 and a pull plate 703.

[0025] Specifically, the threaded rod 301 is disposed inside the fixed cylinder 2 , and one end of the threaded rod 301 is fixedly connected to the rotary valve 302 .

[0026] In this embodiment, when in use, the rotary valve 302 is rotated, and the rotation of the rotary valve 302 causes the threaded rod 301 to rotate, thereby adjusting the position of the probe 6 so that it can adapt to workpieces of different sizes.

[0027] Specifically, the two groups of telescopic columns 501 are fixedly connected to the surfaces of the two groups of connecting tubes 4, the outer sides of the four groups of telescopic columns 501 are sleeved with connecting springs 502, one end of the four groups of connecting springs 502 is fixedly connected to the two groups of connecting plates 503, and one side of the two groups of connecting plates 503 is fixedly connected to several groups of plug-in columns 504.

[0028] In this embodiment, the plug-in column 504 is used to limit the probe 6. When replacing, the connecting plate 503 is used to drive the plug-in column 504 to move, so that the plug-in column 504 can be pulled out from the inside of the connecting tube 4, thereby replacing the probe 6. The connecting spring 502 is used to drive the plug-in column 504 to reset, so that the replaced probe 6 can be fixed.

[0029] Specifically, the four groups of limit springs 701 are all arranged inside the probe 6 , one end of the four groups of limit springs 701 are fixedly connected to the limit pillars 702 , and the surfaces of the four groups of limit pillars 702 are fixedly connected to the pull plates 703 .

[0030] In this embodiment, the pull plate 703 is pulled, and the pull plate 703 pulls out the limiting column 702 from the inside of the limiting hole, rotates the probe 6, rotates the probe 6 to the appropriate position, releases the pull plate 703, and the limiting spring 701 drives the pull plate 703 to reset, thereby fixing the adjusted probe 6.

[0031] Specifically, a control button 8 is provided on the bottom surface of the main body 1 , and a display screen 9 is provided on one side of the main body 1 .

[0032] Specifically, a mounting plate 10 is fixedly connected to one side of the main body 1 , and an adjustment button 11 is provided on the surface of the mounting plate 10 .

[0033] In this embodiment, the adjustment button 11 is used to adjust the efficiency of the device, and the mounting plate 10 is used to place the adjustment button 11 .

[0034] Specifically, a lighting lamp 12 is fixedly connected to one side of the bottom surface of the main body 1 , and a control switch 13 is provided on the top surface of the main body 1 .

[0035] Specifically, a placement groove is provided on the surface of the main body 1 , and the battery pack 14 is fixedly connected inside the placement groove.

[0036] The working principle and usage process of the present invention are as follows: when in use, the rotary valve 302 is rotated, and the rotation of the rotary valve 302 drives the threaded rod 301 to rotate. The rotation of the threaded rod 301 causes one set of connecting tubes 4 to move on the threaded rod 301, so that the device can adjust the distance between the two sets of probes 6. When inspecting workpieces of different diameters, the operator can quickly adjust the spacing between the probes 6 without having to replace the entire flaw detector or use additional tools, thereby improving the work efficiency of the operator;

[0037] When replacing the probe 6, pull the two sets of connecting plates 503. At this time, the connecting spring 502 is in a stretched state, and the connecting plate 503 moves to pull the plug-in column 504 out of the interior of the connecting tube 4, so that the probe 6 can be replaced. When installing, insert the replaced probe 6 into the interior of the connecting tube 4, loosen the connecting plate 503, and the connecting spring 502 drives the connecting plate 503 to reset. The plug-in column 504 is inserted into the plug-in hole on the surface of the connecting tube 4 and the probe 6, thereby fixing the probe 6, so that the device can replace different probes 6 according to different detection scenarios and working types.

[0038] When in use, pull the pull plate 703, the pull plate 703 moves and drives the limit column 702 to move, and the limit column 702 is pulled out from the plug hole on the surface of the probe 6. At this time, the limit spring 701 is in a stretched state, rotate the probe 6, rotate the probe 6 to a suitable position, release the pull plate 703, the limit spring 701 drives the limit column 702 to reset, and the limit column 702 fixes it, so that the probe 6 can adjust its angle according to the detection requirements, so that the device can detect defects at different angles on both sides of the weld, thereby improving the comprehensiveness of the flaw detection.

[0039] In summary, the multi-head magnetic particle flaw detector can not only adjust the distance and angle of the probe 6 but also replace it through the arrangement of the adjustment component 3, the clamping component 5 and the limit component 7.

[0040] It should be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic particle flaw detector, comprising a main body (1), characterized in that: Also includes: A fixed cylinder (2) is provided at the rear side of the main body (1), wherein an adjustment assembly (3) is provided inside the fixed cylinder (2), and the adjustment assembly (3) includes a threaded rod (301) and a rotary valve (302); A connecting tube (4) is provided on the bottom surface of the main body (1) and the threaded rod (301), and the surfaces of the two groups of connecting tubes (4) are fixedly connected with a clamping assembly (5), and the two groups of clamping assemblies (5) each include two groups of telescopic columns (501), two groups of connecting springs (502), a connecting plate (503) and a plurality of groups of plug-in columns (504); The probes (6) are arranged inside the two groups of connecting tubes (4), and the surfaces of the two groups of probes (6) are provided with two groups of limit assemblies (7). The four groups of limit assemblies (7) each include a limit spring (701), a limit column (702) and a pull plate (703).

2. A magnetic particle flaw detector according to claim 1, characterized in that: The threaded rod (301) is arranged inside the fixed cylinder (2), and one end of the threaded rod (301) is fixedly connected to a rotary valve (302).

3. A magnetic particle flaw detector according to claim 1, characterized in that: The two groups of telescopic columns (501) are fixedly connected to the surfaces of the two groups of connecting tubes (4); the outer sides of the four groups of telescopic columns (501) are sleeved with connecting springs (502); one end of the four groups of connecting springs (502) is fixedly connected to the two groups of connecting plates (503); and one side of the two groups of connecting plates (503) is fixedly connected to a plurality of groups of plug-in columns (504).

4. The magnetic particle flaw detector according to claim 1, characterized in that: The four groups of limit springs (701) are all arranged inside the probe (6), one end of the four groups of limit springs (701) is fixedly connected to the limit column (702), and the surface of the four groups of limit columns (702) is fixedly connected to the pull plate (703).

5. The magnetic particle flaw detector according to claim 1, characterized in that: A control button (8) is provided on the bottom surface of the main body (1), and a display screen (9) is provided on one side of the main body (1).

6. The magnetic particle flaw detector according to claim 1, characterized in that: A mounting plate (10) is fixedly connected to one side of the main body (1), and an adjustment button (11) is provided on the surface of the mounting plate (10).

7. The magnetic particle flaw detector according to claim 1, characterized in that: A lighting lamp (12) is fixedly connected to one side of the bottom surface of the main body (1), and a control switch (13) is provided on the top surface of the main body (1).

8. The magnetic particle flaw detector according to claim 1, characterized in that: A placement groove is provided on the surface of the main body (1), and a battery pack (14) is fixedly connected inside the placement groove.

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