Auxiliary mechanism of magnetic defect detector

Abstract

The utility model relates to the field of magnetic defect detectors, and discloses a magnetic defect detector auxiliary mechanism which comprises a workbench, a placing table is fixedly connected to the middle of the top end of the workbench, first sliding rods are fixedly connected to the front sides and the rear sides of the left end and the right end of the placing table, and moving blocks are slidably connected to the outer walls of the first sliding rods. Fixing rods are fixedly connected to the front side and the rear side of the top end of the moving block, groove frames are fixedly connected to the top ends of the fixing rods, a plurality of rolling wheels are rotationally connected to the inner walls of the opposite sides of the upper end and the lower end of each groove frame, a lifting assembly is fixedly connected to the rear side of the left end of the workbench, and a distance adjusting assembly is rotationally connected to the middle of the inner wall of the placing table. According to the utility model, the fatigue caused by long-time holding of the flaw detector by a worker can be reduced, and a workpiece can pass through the lower part of the flaw detector more stably when being pushed under the clamping of the groove frames on the two sides and the rollers, so that the accuracy is improved.

Description

Technical Field

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

[0002] Magnetic particle testing is a common non-destructive testing method used to detect surface welds and near-surface defects in metal materials. It detects defects based on the magnetization characteristics of magnetic materials under the action of a magnetic field. It usually uses the magnetic field of a magnetic particle detector to absorb magnetic particles and detect defects.

[0003] At present, some existing magnetic particle inspection processes still use manual handheld flaw detectors for operation. Although this method is simple, the flaw detector is generally heavy. Holding the flaw detector for a long time will cause arm soreness and fatigue. In addition, holding the flaw detector is unstable, which can easily affect the accuracy of the flaw detection results. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an auxiliary mechanism for a magnetic particle flaw detector, aiming to improve the problem of fatigue and instability of a handheld flaw detector.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an auxiliary mechanism of a magnetic particle flaw detector, including a workbench, a placing table is fixedly connected to the middle part of the top of the workbench, the first sliding rods are fixedly connected to the front and back sides of the left and right ends of the placing table, the outer walls of the first sliding rods are slidably connected to moving blocks, the front and back sides of the top of the moving block are fixedly connected to fixed rods, the tops of the fixed rods are fixedly connected to groove frames, the inner walls of the opposite sides of the upper and lower ends of the groove frames are rotatably connected to a plurality of rollers, a lifting assembly is fixedly connected to the rear side of the left end of the workbench, and a distance adjustment assembly is rotatably connected to the middle part of the inner wall of the placing table.

[0006] As a further description of the above technical solution:

[0007] The distance adjustment component comprises a rotating rod, both left and right ends of the rotating rod are fixedly connected with threaded rods, and the outer walls of the threaded rods are respectively threadedly connected to the middle parts of the inner walls of the moving blocks on the left and right sides.

[0008] As a further description of the above technical solution:

[0009] The lifting assembly comprises a support plate, a tooth plate is fixedly connected to the right end of the support plate, and a sliding frame is slidably connected to the outer wall of the support plate.

[0010] As a further description of the above technical solution:

[0011] A motor is fixedly connected to the right side of the rear end of the sliding frame, and a driving end of the motor penetrates the inner wall of the sliding frame and is fixedly connected to a driving rod.

[0012] As a further description of the above technical solution:

[0013] The front end of the driving rod is rotatably connected to the inner wall of the sliding frame, and the outer wall of the driving rod is fixedly connected with a gear.

[0014] As a further description of the above technical solution:

[0015] The left end of the outer diameter of the gear is meshed and connected to the right end of the toothed plate, and the front and rear sides of the right end of the sliding frame are fixedly connected to a second sliding rod.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the second slide bar is slidably connected with a slide block, and the bottom end of the slide block is fixedly connected with a flaw detector body.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the cooperation of the placement table, the moving block, the first slide bar, the rotating rod, the threaded rod, the groove frame and the roller can reduce the fatigue of the staff caused by the need to hold the flaw detector for a long time, and the clamping of the groove frames and the rollers on both sides can make the workpiece pass under the flaw detector more smoothly when pushed, thereby improving the accuracy.

[0020] 2. In the utility model, through the cooperation of the support plate, the tooth plate, the sliding frame, the motor, the driving rod, the gear, the second sliding rod and the slider, the flaw detector can be adjusted in height and left and right position according to the position of the weld of the workpiece, and the hand-held operation is reduced, thereby improving the practicality and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an auxiliary mechanism of a magnetic particle flaw detector proposed by the utility model;

[0022] Figure 2 A cross-sectional view of a placement table for an auxiliary mechanism of a magnetic particle flaw detector proposed by the utility model;

[0023] Figure 3 A half-section diagram of a sliding frame of an auxiliary mechanism of a magnetic particle flaw detector proposed by the utility model.

[0024] Legend:

[0025] 1. Workbench; 2. Placement table; 3. Moving block; 4. First slide bar; 5. Gear; 6. Threaded rod; 7. Groove frame; 8. Roller; 9. Second slide bar; 10. Flaw detector body; 11. Sliding block; 12. Tooth plate; 13. Sliding frame; 14. Support plate; 15. Rotating rod; 16. Fixed rod; 17. Motor; 18. Driving rod. DETAILED DESCRIPTION

[0026] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0028] Reference Figure 1-3 The utility model provides an embodiment of an auxiliary mechanism for a magnetic particle flaw detector, comprising a workbench 1, a placing table 2 is fixedly connected to the middle part of the top of the workbench 1, the placing table 2 is used to place the workpiece and provide stability, the left and right ends of the placing table 2 are fixedly connected to the front and back sides thereof, the outer wall of the first slide bar 4 is slidably connected to a moving block 3, the moving block 3 can slide back and forth on the outer wall of the first slide bar 4 to adjust the spacing between the opposite ends, the front and back sides of the top of the moving block 3 are fixedly connected to a fixing rod 16, the top of the fixing rod 16 is fixedly connected to a groove frame 7, the inner wall of the upper and lower ends of the groove frame 7 is rotatably connected to a plurality of rollers 8, and a plurality of rollers 8 are installed on the groove frame 7, which can reduce the friction of the workpiece when it moves between the groove frames 7, and can reduce the pushing force required by the staff, the rear side of the left end of the workbench 1 is fixedly connected to a lifting assembly, and the middle part of the inner wall of the placing table 2 is rotatably connected to a distance adjustment assembly.

[0029] The distance adjustment component includes a rotating rod 15, and the left and right ends of the rotating rod 15 are fixedly connected with threaded rods 6. The threads on the surfaces of the threaded rods 6 on both sides are in opposite directions. The outer walls of the threaded rods 6 are respectively threadedly connected to the middle of the inner walls of the left and right moving blocks 3. The welded workpiece is placed on the placement table 2 and magnetic powder is sprayed on the weld. Then, the threaded rod 6 on either side is rotated, so that the moving block 3 slides inward along the outer wall of the first sliding rod 4 along the threads on the surface of the threaded rod 6, and the rollers 8 are clamped on both sides of the workpiece. Through the clamping of the groove frames 7 and the rollers 8 on both sides, the workpiece passes more smoothly under the flaw detector when pushed, thereby improving accuracy.

[0030] The lifting assembly includes a support plate 14, the right end of the support plate 14 is fixedly connected to a toothed plate 12, the outer wall of the support plate 14 is slidably connected to a sliding frame 13, a motor 17 is fixedly connected to the right side of the rear end of the sliding frame 13, the driving end of the motor 17 passes through the inner wall of the sliding frame 13 and is fixedly connected to a driving rod 18, the front end of the driving rod 18 is rotatably connected to the inner wall of the sliding frame 13, the outer wall of the driving rod 18 is fixedly connected to a gear 5, the left end of the outer diameter of the gear 5 is meshed and connected to the right end of the toothed plate 12, and the motor 17 is started, so that the driving rod 18 drives the gear 5 to rotate and meshes and rolls downward on the surface of the toothed plate 12, so as to adjust the optimal operating distance between the flaw detector body 10 and the workpiece, and the second sliding rod 9 is fixedly connected to the front and rear sides of the right end of the sliding frame 13.

[0031] The outer wall of the second slide bar 9 is slidably connected with a slider 11, and the bottom end of the slider 11 is fixedly connected with a flaw detector body 10. The position of the flaw detector body 10 and the weld is adjusted by sliding the slider 11 left and right. The flaw detector body 10 can adjust the height and left and right position according to the position of the workpiece weld, and reduce hand-held operation, thereby improving the practicality and flexibility of the device. During detection, it is necessary to first spray magnetic powder at the detection position of the workpiece. The flaw detector body 10 generates sufficient magnetic field strength to form an observable magnetic powder broadband on the workpiece being detected, and the magnetic powder around the defect will form a specific pattern, such as linear, circular or dotted.

[0032] Working principle: First, place the welded workpiece on the placement table 2 and spray magnetic powder on the weld, then rotate the threaded rod 6 on either side so that the moving block 3 slides inward along the thread on the surface of the threaded rod 6 on the outer wall of the first slide rod 4 and the roller 8 is clamped against both sides of the workpiece, then start the motor 17 so that the drive rod 18 drives the gear 5 to rotate and mesh and roll downward on the surface of the tooth plate 12, so as to adjust the optimal operating distance between the flaw detector body 10 and the workpiece, and the position of the flaw detector body 10 and the weld can be adjusted by sliding the slider 11 left and right, then start the flaw detector body 10 and slowly push the workpiece at the same time and make the workpiece easier to push under the rolling of the roller 8, and the flaw detector body 10 will detect flaws at the weld of the workpiece to detect whether there are cracks.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic particle flaw detector auxiliary mechanism, comprising a workbench (1), characterized in that: The middle part of the top of the workbench (1) is fixedly connected to a placing platform (2); the left and right ends and the front and rear sides of the placing platform (2) are fixedly connected to first sliding rods (4); the outer wall of the first sliding rod (4) is slidably connected to a moving block (3); the front and rear sides of the top of the moving block (3) are fixedly connected to a fixing rod (16); the top of the fixing rod (16) is fixedly connected to a groove frame (7); the inner wall of the groove frame (7) on the opposite side of the upper and lower ends is rotatably connected to a plurality of rollers (8); the rear side of the left end of the workbench (1) is fixedly connected to a lifting assembly; the middle part of the inner wall of the placing platform (2) is rotatably connected to a distance adjustment assembly.

2. The auxiliary mechanism of a magnetic particle flaw detector according to claim 1, characterized in that: The distance adjustment assembly comprises a rotating rod (15), the left and right ends of the rotating rod (15) are fixedly connected to threaded rods (6), and the outer walls of the threaded rods (6) are respectively threadedly connected to the middle parts of the inner walls of the left and right moving blocks (3).

3. The auxiliary mechanism of a magnetic particle flaw detector according to claim 1, characterized in that: The lifting assembly comprises a support plate (14), the right end of the support plate (14) is fixedly connected to a tooth plate (12), and the outer wall of the support plate (14) is slidably connected to a sliding frame (13).

4. The auxiliary mechanism of a magnetic particle flaw detector according to claim 3, characterized in that: A motor (17) is fixedly connected to the right side of the rear end of the sliding frame (13); a driving end of the motor (17) penetrates the inner wall of the sliding frame (13) and is fixedly connected to a driving rod (18).

5. The auxiliary mechanism of a magnetic particle flaw detector according to claim 4, characterized in that: The front end of the driving rod (18) is rotatably connected to the inner wall of the sliding frame (13), and the outer wall of the driving rod (18) is fixedly connected to a gear (5).

6. The auxiliary mechanism of a magnetic particle flaw detector according to claim 5, characterized in that: The left end of the outer diameter of the gear (5) is meshedly connected to the right end of the toothed plate (12), and the front and rear sides of the right end of the sliding frame (13) are fixedly connected to a second sliding rod (9).

7. The auxiliary mechanism of a magnetic particle flaw detector according to claim 6, characterized in that: The outer wall of the second sliding rod (9) is slidably connected to a sliding block (11), and the bottom end of the sliding block (11) is fixedly connected to a flaw detector body (10).

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