Workpiece driving detection mechanism for eddy current flaw detection

Abstract

The utility model relates to the technical field of eddy current flaw detection, in particular to a workpiece driving detection mechanism for eddy current flaw detection, which comprises a workbench, a movable plate is clamped on the left side of the upper end of the workbench, the upper end of the movable plate is fixedly connected with a fixed frame, and a motor is fixedly mounted in the middle of the front surface of the fixed frame. The motor is fixedly connected with a rotating rod through a rotating shaft, the outer side of the rotating rod is connected to a second connecting rod through a first connecting rod, the other end of the second connecting rod is connected with a clamping plate through a third connecting rod, the right side of the upper end of the workbench is fixedly connected with a mounting frame, and a moving rod is inserted into the upper end of the mounting frame; the lower end of the moving rod is connected with a placing plate through a connecting sleeve, the right side of the upper end of the workbench is fixedly connected with a fixing rod, and the left side of the fixing rod is connected with an illuminating lamp. And the illuminating lamp can provide clear light rays to help an operator more accurately observe the surface of the workpiece, the position of the probe and a detection result.

Description

Technical Field

[0001] This utility model relates to the field of eddy current flaw detection technology, specifically a workpiece driving detection mechanism for eddy current flaw detection. Background Technology

[0002] Eddy current flaw detectors are commonly used in military, aviation, railway, and mining enterprises. They can be used in the field or on-site, and are multifunctional, highly practical, high-performance, and cost-effective instruments. They are widely used for online and offline flaw detection of various non-ferrous and ferrous metal pipes, bars, wires, and profiles. They have high detection sensitivity for defects in metal pipes, bars, wires, and profiles, such as surface cracks, hidden seams, slag inclusions, and open cracks.

[0003] The announcement number CN219737370U specifically relates to a workpiece driving detection mechanism for eddy current flaw detection, including a housing. A motor is detachably mounted on the left side of the bottom wall of the housing. The output end of the motor is locked with a lead screw via a coupling, and the other end of the lead screw is rotatably connected to the inner wall of the housing via a bearing. A connecting seat is threaded onto the outer wall of the lead screw. The top end of the connecting seat extends out of the housing and is provided with a connecting plate. A support seat is provided at the top end of the connecting plate. A workpiece clamping mechanism is provided at the right end of the support seat. A probe clamping mechanism is provided at the right side of the top end of the housing. This invention effectively replaces manual operation with mechanical drive, freeing up the user's hands and saving time and effort for batch testing. It also improves the automation level of eddy current testing technology and better meets actual testing needs. In the above-mentioned device, the workpiece driving detection mechanism is not equipped with a lighting lamp in eddy current testing. Eddy current testing usually requires operators to visually inspect the workpiece surface or probe position. If there is no lighting, the operator may not be able to clearly observe the workpiece condition, increasing the risk of misjudgment. In dim environments, tiny cracks, scratches or other defects on the workpiece surface may be overlooked, leading to inaccurate test results. Therefore, we propose a workpiece driving detection mechanism for eddy current testing to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a workpiece driving detection mechanism for eddy current flaw detection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a workpiece driving detection mechanism for eddy current flaw detection, comprising a worktable, a movable plate engaged on the upper left side of the worktable, a fixed frame fixedly connected to the upper end of the movable plate, a motor fixedly installed at the middle position of the front surface of the fixed frame, a rotating rod fixedly connected to the motor via a rotating shaft, and the outer side of the rotating rod connected to a second connecting rod via a first connecting rod, the other end of the second connecting rod connected to a clamping plate via a third connecting rod, a mounting frame fixedly connected to the upper right side of the worktable, a movable rod inserted into the upper end of the mounting frame, a placement plate connected to the lower end of the movable rod via a connecting sleeve, telescopic rods fixedly connected to both the front and rear ends of the mounting frame, a fixed rod fixedly connected to the upper right side of the worktable, and a lighting lamp connected to the left side of the fixed rod.

[0006] Preferably, the lower end of the movable plate is movably engaged in the worktable by a T-shaped locking block, and a T-shaped slot that cooperates with the T-shaped locking block is provided on the worktable.

[0007] Preferably, a locking bolt is inserted into the upper end of the front surface of the worktable, and the other end of the locking bolt is inserted into the T-shaped block. Locking grooves that cooperate with the locking bolt are evenly distributed on the worktable.

[0008] Preferably, the rotating rod is rotatably connected to the fixed frame, both ends of the first connecting rod are rotatably connected to the rotating rod and the second connecting rod, the other end of the second connecting rod is rotatably connected to the third connecting rod, the two sets of clamping plates are distributed opposite each other, and the side of the two sets of clamping plates that are close to each other is provided with an arc-shaped structure.

[0009] Preferably, the outer surface of the movable rod is uniformly provided with threaded grooves, and the movable rod is threadedly inserted into the mounting frame.

[0010] Preferably, a placement plate is fixedly connected to the lower inner end of the mounting frame, and the two sets of placement plates are arranged in an arc shape on the side that is close to each other. Rubber protrusions are evenly distributed on the side that is close to each other of the two sets of placement plates, and the lower ends of the two sets of telescopic rods are fixedly connected to the placement plate.

[0011] Preferably, the fixing rod is configured in an L-shape, and a lighting lamp is installed on the left side of the fixing rod via a ball joint.

[0012] This utility model provides a workpiece driving detection mechanism for eddy current flaw detection, which has the following beneficial effects:

[0013] The device is equipped with a fixed frame, a rotating rod, a first connecting rod, a second connecting rod, a third connecting rod, and a clamping plate. The motor can be opened, and the motor drives the rotating rod to rotate via the rotating shaft. The rotating rod drives the clamping plate to move in opposite directions via the first connecting rod, the second connecting rod, and the third connecting rod, which clamps and fixes the detector, making it more convenient to perform testing work.

[0014] Equipped with a fixed rod and a light, the light can be turned on to illuminate the workpieces on the placement plate. The light provides clear illumination, helping operators to more accurately observe the workpiece surface, probe position, and test results, avoiding misjudgments or missed detections due to insufficient light. Under sufficient light, tiny cracks, scratches, or other defects on the workpiece surface are more easily identified, improving the accuracy and reliability of the test. Attached image description:

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0017] Figure 2 This is a front sectional view of the fixed frame of this utility model.

[0018] Figure 3 This is an exploded structural diagram of the rotating rod and clamping plate of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the mounting frame and the movable rod of this utility model.

[0020] In the diagram: 1. Workbench; 2. Movable plate; 3. Fixed frame; 4. Motor; 5. Rotating rod; 6. First connecting rod; 7. Second connecting rod; 8. Third connecting rod; 9. Clamping plate; 10. Mounting frame; 11. Placement plate; 12. Movable rod; 13. Connecting sleeve; 14. Telescopic rod; 15. Fixed rod; 16. Lighting lamp. Detailed implementation method:

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a workpiece driving detection mechanism for eddy current flaw detection, including a worktable 1, a movable plate 2 engaged on the upper left side of the worktable 1, and a fixed frame 3 fixedly connected to the upper end of the movable plate 2, and a motor 4 fixedly installed at the middle position of the front surface of the fixed frame 3, the motor 4 being fixedly connected to a rotating rod 5 via a rotating shaft, and the outer side of the rotating rod 5 being connected to a second connecting rod 7 via a first connecting rod 6, the other end of the second connecting rod 7 being connected to a clamping plate 9 via a third connecting rod 8, a mounting frame 10 fixedly connected to the upper right side of the worktable 1, and a movable rod 12 inserted into the upper end of the mounting frame 10, the lower end of the movable rod 12 being connected to a placement plate 11 via a connecting sleeve 13, telescopic rods 14 being fixedly connected to both the front and rear ends of the mounting frame 10, a fixed rod 15 fixedly connected to the upper right side of the worktable 1, and a lighting lamp 16 connected to the left side of the fixed rod 15.

[0023] The lower end of the movable plate 2 is movably engaged in the worktable 1 via a T-shaped locking block. The worktable 1 has a T-shaped slot that mates with the T-shaped locking block. A locking bolt is inserted into the upper part of the front surface of the worktable 1, and the other end of the locking bolt is inserted into the T-shaped locking block. Locking slots that mate with the locking bolts are evenly distributed on the worktable 1. The movable plate 2 is movably engaged in the T-shaped slots of the worktable 1 via the T-shaped locking block, which enables quick installation and disassembly. At the same time, it ensures that the position of the movable plate 2 is accurate and avoids processing errors caused by installation deviations. The shape design of the T-shaped locking block can effectively prevent the movable plate 2 from rotating or tilting during installation, improving the reliability of assembly. After the locking bolt inserted into the upper part of the front surface of the worktable 1 is inserted into the T-shaped locking block, it is fixed by the locking slot, ensuring that the movable plate 2 will not loosen or fall off due to vibration or external force during operation. The multiple locking slots evenly distributed on the worktable 1 can select different locking positions as needed to adapt to the stability requirements under different working conditions.

[0024] Rotating rod 5 is rotatably connected to fixed frame 3. Both ends of the first connecting rod 6 are rotatably connected to rotating rod 5 and second connecting rod 7. The other end of the second connecting rod 7 is rotatably connected to third connecting rod 8. Two sets of clamping plates 9 are distributed opposite each other. The sides of the two sets of clamping plates 9 that are close to each other are set with an arc-shaped structure. The arc-shaped structure of the clamping plates 9 can better fit the surface of the workpiece, especially the circular or curved workpiece, and provide a more uniform contact force, avoiding deformation or damage to the detector due to excessive local force. The two sets of clamping plates 9 are distributed opposite each other and are linked by the connecting rod mechanism to achieve symmetrical clamping, ensuring that the detector is clamped during the clamping process. To maintain stability and reduce the risk of displacement or tilting, the linkage design of rotating rod 5, first connecting rod 6, second connecting rod 7 and third connecting rod 8 allows operators to easily adjust the opening and closing degree of clamping plate 9, quickly adapting to workpieces of different sizes. The linkage mechanism composed of rotating rod 5, first connecting rod 6, second connecting rod 7 and third connecting rod 8 can evenly transmit the clamping force to the two sets of clamping plates 9, avoiding excessive force on one side that could lead to structural deformation or damage. The combination of the arc-shaped clamping plate 9 and the linkage mechanism can achieve a uniform distribution of clamping force, avoiding workpiece deformation or clamping failure due to localized force concentration.

[0025] The outer surface of the movable rod 12 is uniformly provided with threaded grooves. The movable rod 12 is threadedly inserted into the mounting frame 10. The lower end of the mounting frame 10 is fixedly connected to a placement plate 11, and both sets of placement plates 11 have an arc-shaped structure on their adjacent sides. Rubber protrusions are evenly distributed on the adjacent sides of both sets of placement plates 11. The lower ends of both sets of telescopic rods 14 are fixedly connected to the placement plate 11. The threaded grooves on the outer surface of the movable rod 12 are threaded with the mounting frame 10, allowing the movable rod 12 to be precisely adjusted up and down by rotation, meeting the clamping requirements of workpieces of different heights. The threaded connection has high friction and stability, ensuring that the movable rod 12 will not loosen due to vibration or external force after adjustment, thus ensuring the reliability of the clamping system. The two sets of placement plates 11 are arranged in an arc shape on the side closest to each other, which can better fit the surface of the workpiece (especially circular or curved workpieces), provide uniform support force, and avoid excessive local force that could cause workpiece deformation or damage. The rubber ridges evenly distributed on the placement plates 11 can increase the friction with the workpiece and prevent the workpiece from sliding. At the same time, the elasticity of the rubber material can buffer the clamping force and protect the workpiece surface from scratches or indentations. The height of the placement plates 11 can be easily adjusted by rotating the moving rod 12 to accommodate workpieces of different sizes. In addition, the modular design of the placement plates 11 and the telescopic rod 14 makes them easy to disassemble and replace, which is convenient for maintenance. The telescopic rod 14 makes the placement plates 11 more stable when moving.

[0026] The fixing rod 15 is designed in an L-shape. A lighting lamp 16 is mounted on the left side of the fixing rod 15 via a universal ball joint. The universal ball joint allows the lighting lamp 16 to rotate and tilt freely in multiple directions, making it convenient for operators to adjust the lighting angle as needed and ensuring that the light accurately covers the inspection area. During the inspection process, the shape, position, or inspection angle of the workpiece may change continuously. The flexibility of the universal ball joint allows for quick adjustment of the lighting direction to meet the lighting needs of different scenarios. By adjusting the angle of the lighting lamp 16, inspection errors caused by insufficient light or shadow obstruction can be avoided, improving the accuracy of eddy current flaw detection. The adjustment function of the universal ball joint allows the lighting lamp 16 to be quickly aligned with the workpiece part to be inspected, reducing operation time and improving inspection efficiency.

[0027] Working principle: Pull out the locking bolt on the workbench 1, move the moving plate 2 to the appropriate position through the T-shaped locking block, and then insert the locking bolt into the T-shaped locking block to lock it. Place the detector on one side where the two sets of clamping plates 9 are close to each other. Turn on the motor 4. The motor 4 drives the two sets of clamping plates 9 to move closer to each other through the first connecting rod 6, the second connecting rod 7 and the third connecting rod 8. The detector is clamped and fixed by the clamping plates 9. Place the workpiece on the placement plate 11. By rotating the moving rod 12, the moving rod 12 drives the other end of the placement plate 11 to move through the connecting sleeve 13, so that the placement plate 11 abuts against the workpiece and clamps the workpiece. Turn on the lighting lamp 16, and the workpiece can be detected by the detector.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A workpiece driving inspection mechanism for eddy current flaw detection, comprising a worktable (1), characterized in that: The upper left side of the workbench (1) is fitted with a movable plate (2), and the upper end of the movable plate (2) is fixedly connected to a fixed frame (3). A motor (4) is fixedly installed in the middle of the front surface of the fixed frame (3). The motor (4) is fixedly connected to a rotating rod (5) through a rotating shaft. The outer side of the rotating rod (5) is connected to a second connecting rod (7) through a first connecting rod (6). The other end of the second connecting rod (7) is connected to a clamping plate (9) through a third connecting rod (8). The upper right side of the workbench (1) is fixedly connected to an installation frame (10), and a movable rod (12) is inserted into the upper end of the installation frame (10). The lower end of the movable rod (12) is connected to a placement plate (11) through a connecting sleeve (13). Telescopic rods (14) are fixedly connected to both the front and rear ends of the installation frame (10). A fixed rod (15) is fixedly connected to the upper right side of the workbench (1), and a lighting lamp (16) is connected to the left side of the fixed rod (15).

2. The workpiece driving detection mechanism for eddy current flaw detection according to claim 1, characterized in that: The lower end of the movable plate (2) is movably engaged in the workbench (1) by a T-shaped card block, and the workbench (1) is provided with a T-shaped card slot that cooperates with the T-shaped card block.

3. The workpiece driving detection mechanism for eddy current flaw detection according to claim 2, characterized in that: The front surface of the workbench (1) is provided with a locking bolt at the upper end, and the other end of the locking bolt is inserted into a T-shaped block. The workbench (1) is provided with locking grooves that cooperate with the locking bolt.

4. The workpiece driving detection mechanism for eddy current flaw detection according to claim 1, characterized in that: The rotating rod (5) is rotatably connected to the fixed frame (3). Both ends of the first connecting rod (6) are rotatably connected to the rotating rod (5) and the second connecting rod (7). The other end of the second connecting rod (7) is rotatably connected to the third connecting rod (8). The two sets of clamping plates (9) are distributed opposite each other. The side of the two sets of clamping plates (9) that are close to each other is set with an arc-shaped structure.

5. The workpiece driving detection mechanism for eddy current flaw detection according to claim 1, characterized in that: The outer surface of the movable rod (12) is uniformly provided with threaded grooves, and the movable rod (12) is threadedly inserted into the mounting frame (10).

6. The workpiece driving detection mechanism for eddy current flaw detection according to claim 1, characterized in that: The lower end of the mounting frame (10) is fixedly connected to a placement plate (11), and the two sets of placement plates (11) are arranged in an arc shape on the side that is close to each other. Rubber ridges are evenly distributed on the side that is close to each other, and the lower ends of the two sets of telescopic rods (14) are fixedly connected to the placement plate (11).

7. The workpiece driving detection mechanism for eddy current flaw detection according to claim 1, characterized in that: The fixing rod (15) is configured in an L-shape, and a lighting lamp (16) is installed on the left side of the fixing rod (15) via a ball joint.

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