Combined magnetic particle flaw detector

Abstract

The utility model relates to the related technical field of magnetic particle flaw detectors, in particular to a combined magnetic particle flaw detector which comprises a flaw detector body, a connecting groove is formed in one side of the surface of the flaw detector body, a supporting plate is fixedly connected to one side of the flaw detector body, and a liquid storage tank is fixedly placed on the surface of the supporting plate. And a first conveying pump is connected to one side of the liquid storage tank through a pipeline, a connecting pipe is fixedly connected to one side of the first conveying pump, and a spray head is fixedly installed at one end of the connecting pipe. According to the combined magnetic particle flaw detector, the laser displacement sensor senses a workpiece, and then the electric sliding table drives the spray head to accurately reciprocate above the workpiece, so that the single spray head can spray a magnetic suspension, and the magnetic suspension can also be sprayed comprehensively, and the magnetic suspension covers the surface of the workpiece; the magnetic suspension can also be filtered and recycled through the material receiving box and then conveyed into the liquid storage box again through the second conveying pump.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic particle flaw detectors, and in particular to a combined magnetic particle flaw detector. Background Technology

[0002] Magnetic particle testing can detect defects such as cracks, hairline cracks, white spots, folds, and inclusions in ferromagnetic materials. It has high detection sensitivity and can intuitively display the location, shape, size, and severity of defects. It also has good repeatability in defect inspection. Magnetic particle testing machines are widely used in the inspection of various metal products, such as pipes, boilers, pressure vessels like spherical tanks, and curved and flat workpieces of various geometric shapes. Magnetic particle testing machines utilize the phenomenon of magnetic powder accumulating at defects to detect surface and near-surface defects. Therefore, magnetic particle testing machines are relatively flexible in use and can be designed with corresponding structures and appearances according to different workpiece structures, facilitating targeted inspection. For some pipe fitting materials, in order to facilitate comprehensive inspection, multiple modules are flexibly combined to achieve multi-directional, blind-angle inspection. Therefore, a modular magnetic particle testing machine is needed.

[0003] Existing combined magnetic particle flaw detectors generally require multiple nozzles to spray magnetic suspension during inspection. However, due to the large spraying range and the need to operate all nozzles simultaneously for comprehensive spraying, a large amount of magnetic suspension is consumed at once. Furthermore, the large diffusion range of the magnetic suspension results in a large area of ​​adsorption onto the surface of the magnetic particle flaw detector, leading to significant waste due to the lack of magnetic suspension recovery. Utility Model Content

[0004] The purpose of this invention is to provide a combined magnetic particle flaw detector to solve the problem mentioned in the background art. Existing combined magnetic particle flaw detectors generally require multiple nozzles to spray magnetic suspension during inspection. However, due to the large spraying range and the need to fully activate all nozzles for comprehensive spraying, a large amount of magnetic suspension is consumed at once. Furthermore, the large diffusion range of the magnetic suspension leads to its adsorption on the surface of the magnetic particle flaw detector, resulting in a lack of magnetic suspension recovery and significant waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined magnetic particle flaw detector, comprising a flaw detector, a connecting groove on one side of the flaw detector's surface, a support plate fixedly connected to one side of the flaw detector, a liquid storage tank fixedly placed on the surface of the support plate, a first delivery pump connected to one side of the liquid storage tank via a pipe, a connecting pipe fixedly connected to one side of the first delivery pump, a nozzle fixedly installed at one end of the connecting pipe, an electric slide fixedly installed on one side of the upper surface of the flaw detector, a fixed frame fixedly installed at one end of the electric slide, a laser displacement sensor fixedly installed on one side of the fixed frame, a receiving box fixedly installed at one end of the connecting groove, a precision filter fixedly installed on one side of the inner wall of the receiving box, a guide groove provided on the lower inner surface of the receiving box, a second delivery pump connected to one side of the receiving box via a pipe, a return pipe fixedly connected to one side of the second delivery pump, electrode boxes fixedly installed at both ends of the flaw detector, and a clamping mechanism provided at one end of each electrode box.

[0006] Preferably, a support frame is fixedly installed on the inner surface of the flaw detector, and a rolling ball is embedded in the slot at the top of the support frame. Sliding guide rails are provided on both sides of the inner wall of the flaw detector, and electrode disks are connected to both ends of the sliding guide rails.

[0007] Preferably, the inner lower surface of the flaw detector has a sloping structure, and the lower part is connected to the connecting groove. The fixing frame is fixedly connected to the connecting pipe, and the connecting pipe is made of a soft material.

[0008] Preferably, the guide channel has a sloping structure, and its lower part is connected to the pipe opening on one side of the receiving box. The pipe opening is connected to the second delivery pump through a pipe, and one end of the return pipe is connected to the liquid storage tank.

[0009] Preferably, the clamping mechanism includes a sleeve, a first synchronous wheel, a limiting ring, an electrode shaft, a limiting groove, a connecting sleeve, a cylinder, a connector, and a clamping plate. The sleeve is pierced through one side of the electrode box and connected to a bearing. One end of the sleeve is fixedly connected to the first synchronous wheel. The inner ring of the first synchronous wheel is fixedly installed with a limiting ring. One end of the limiting ring passes through the electrode shaft. The surface of the electrode shaft has a limiting groove that fits with the limiting ring. One end of the electrode shaft is fixedly installed with a connecting sleeve. A cylinder is fixedly installed on one side of the outer wall of the electrode box. The output end of the cylinder is fixedly connected to a connector. One end of the electrode shaft is fixedly installed with a clamping plate.

[0010] Preferably, one end of the connector is fitted into the slot of the connecting sleeve, forming a rotating structure.

[0011] Preferably, a drive motor is fixedly installed on one side of the inner wall of the electrode box, and a second synchronous pulley is fixedly connected to the output end of the drive motor. A synchronous belt connected to the first synchronous pulley is sleeved on one end of the second synchronous pulley.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This combined magnetic particle flaw detector can move the connecting pipe at one end of the fixed frame through the electric slide table. At the same time, the angle of the laser displacement sensor corresponds to the position of the center line of the clamping plate. When the workpiece is placed on the support frame and then rotated by the clamping plate, the laser displacement sensor senses the workpiece. Then, driven by the electric slide table, the nozzle is driven to perform precise reciprocating motion above the workpiece, so that a single nozzle can complete the spraying of magnetic suspension liquid. It can also spray comprehensively, so that the magnetic suspension liquid covers the surface of the workpiece. The magnetic suspension liquid can also be filtered and recycled through the receiving box and then transported back to the storage tank through the second delivery pump. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the flaw detector and the connecting groove of this utility model.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the receiving box of this utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the electrode box of this utility model;

[0017] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0018] In the diagram: 1. Flaw detector; 2. Support frame; 3. Ball bearing; 4. Sliding guide rail; 5. Electrode disc; 6. Connecting groove; 7. Support plate; 8. Storage tank; 9. First delivery pump; 10. Connecting pipe; 11. Nozzle; 12. Electric slide table; 13. Fixing frame; 14. Laser displacement sensor; 15. Receiving box; 16. Precision filter; 17. Guide channel; 18. Second delivery pump; 19. Return pipe; 20. Electrode box; 21. Clamping mechanism; 2101. Sleeve; 2102. First synchronous pulley; 2103. Limiting ring; 2104. Electrode shaft; 2105. Limiting groove; 2106. Connecting sleeve; 2107. Cylinder; 2108. Connector; 2109. Clamping plate; 22. Drive motor; 23. Second synchronous pulley; 24. Synchronous belt. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a combined magnetic particle flaw detector, including a flaw detector 1. A connecting groove 6 is formed on one side of the flaw detector 1. A support plate 7 is fixedly connected to one side of the flaw detector 1. A liquid storage tank 8 is fixedly placed on the surface of the support plate 7. A first delivery pump 9 is connected to one side of the liquid storage tank 8 via a pipe. A connecting pipe 10 is fixedly connected to one side of the first delivery pump 9. A nozzle 11 is fixedly installed at one end of the connecting pipe 10. An electric slide 12 is fixedly installed on one side of the upper surface of the flaw detector 1. A fixed bracket 13 is fixedly installed at one end of the machine. A laser displacement sensor 14 is fixedly installed on one side of the fixed bracket 13. A receiving box 15 is fixedly installed at one end of the connecting groove 6. A precision filter screen 16 is fixedly installed on one side of the inner wall of the receiving box 15. A guide groove 17 is provided on the lower inner surface of the receiving box 15. A second conveying pump 18 is connected to one side of the receiving box 15. A return pipe 19 is fixedly connected to one side of the second conveying pump 18. Electrode boxes 20 are fixedly installed at both ends of the flaw detector 1. A clamping mechanism 21 is provided at one end of the electrode box 20.

[0021] Furthermore, a support frame 2 is fixedly installed on the inner surface of the flaw detector 1. A rolling ball 3 is embedded in the slot at the top of the support frame 2. Sliding guide rails 4 are provided on both sides of the inner wall of the flaw detector 1. Electrode disks 5 are connected to both ends of the sliding guide rails 4. With the support frame 2 and the ball 3, the workpiece can be placed on the ball 3 of the support frame 2 during use. The support frame 2 supports the workpiece, and the ball 3 can rotate with the workpiece.

[0022] Furthermore, the inner lower surface of the flaw detector 1 has a sloping structure, and the lower part is connected to the connecting groove 6. The fixed frame 13 is fixedly connected to the connecting pipe 10, and the connecting pipe 10 is made of soft material. Through the setting of the connecting groove 6, when the magnetic suspension drips onto the inner lower surface of the flaw detector 1, due to the sloping angle of the lower surface, the magnetic suspension will flow along the sloping angle to the connecting groove 6, so that the magnetic suspension can enter the receiving box 15 more quickly.

[0023] Furthermore, the guide channel 17 has a sloping structure, and its lower part is connected to the pipe opening on one side of the receiving box 15. The pipe opening is connected to the second delivery pump 18 through a pipe. One end of the return pipe 19 is connected to the liquid storage tank 8. With the setting of the receiving box 15, when the magnetic suspension enters the receiving box 15, it is filtered by a specific precision filter 16. After the magnetic suspension passes through the precision filter 16, it will also flow quickly to the side close to the second delivery pump 18 due to the sloping structure of the guide channel 17, so that the second delivery pump 18 can recover the magnetic suspension.

[0024] Furthermore, the clamping mechanism 21 includes a sleeve 2101, a first synchronous pulley 2102, a limiting ring 2103, an electrode shaft 2104, a limiting groove 2105, a connecting sleeve 2106, a cylinder 2107, a connector 2108, and a clamping plate 2109. The sleeve 2101 is connected to one side of the electrode box 20 via a bearing. One end of the sleeve 2101 is fixedly connected to the first synchronous pulley 2102. The inner ring of the first synchronous pulley 2102 is fixedly installed with a limiting ring 2103. One end of the limiting ring 2103 passes through the electrode shaft 2104. The surface of the electrode shaft 2104 has a limiting groove 2105 that fits against the limiting ring 2103. One end of the electrode shaft 2104 is fixedly installed with a connecting sleeve 2106. A cylinder 2107 is fixedly installed on one side of the outer wall of the electrode box 20. 107. A connector 2108 is fixedly connected to the output end of the cylinder 2107. A clamping plate 2109 is fixedly installed at one end of the electrode shaft 2104. Through the arrangement of the sleeve 2101, the first synchronous wheel 2102, the limiting ring 2103, the electrode shaft 2104, the limiting groove 2105, the connecting sleeve 2106, the cylinder 2107, the connector 2108, and the clamping plate 2109, in use, the corresponding support frame 2 is installed according to the size of the workpiece. After the workpiece is placed, the cylinder 2107 pushes the electrode shaft 2104, which drives the clamping plate 2109 to clamp the workpiece from both sides. Then, driven by the drive motor 22, the electrode shaft 2104 can be rotated, thereby driving the workpiece to rotate, which facilitates comprehensive coverage and detection of the magnetic suspension liquid.

[0025] Furthermore, one end of the connector 2108 is fitted into the slot of the connecting sleeve 2106, forming a rotating structure. With the connection 2108, while the drive motor 22 rotates, the connecting sleeve 2106 will rotate on the outer ring of the connector 2108, and the cylinder 2107 remains stationary.

[0026] Furthermore, a drive motor 22 is fixedly installed on one side of the inner wall of the electrode box 20. The output end of the drive motor 22 is fixedly connected to a second synchronous pulley 23. One end of the second synchronous pulley 23 is fitted with a synchronous belt 24 connected to the first synchronous pulley 2102. Through the setting of the drive motor 22, the output shaft of the drive motor 22 is fixedly connected to the second synchronous pulley 23 through it, and one end of the output shaft is connected to the bearing at the corresponding slot of the electrode box 20.

[0027] Working principle: First, when a workpiece needs to be inspected, the workpiece is placed above the support frame 2, in contact with the ball bearings 3. Then, on one side of the electrode box 20, the cylinder 2107 pushes the electrode shaft 2104 and the clamping plate 2109 to move towards both ends of the workpiece and clamp them. Subsequently, the electric slide table 12 drives the fixed frame 13 to move, while the laser displacement sensor 14 senses the surface of the workpiece, thereby driving the nozzle 11 to move according to the length of the workpiece. Next, the first delivery pump 9 delivers the magnetic suspension liquid in the storage tank 8 to the connecting pipe 10, and then sprays it downwards onto the surface of the workpiece through the nozzle 11. Driven by the electric slide table 12, it sprays back and forth. Then, the drive motor 22 drives the synchronous belt 24 at one end of the second synchronous pulley 23 to rotate, and the second synchronous belt 24 drives the first synchronous pulley. When 2102 rotates, the limiting ring 2103 of the inner ring of the first synchronous wheel 2102 and the limiting groove 2105 of the electrode shaft 2104 come into contact, causing the first synchronous wheel 2102 to drive the electrode shaft 2104 to rotate. The electrode shaft 2104 drives the workpiece to rotate through the clamping plate 2109. The workpiece is supported by the rotatable ball bearing 3. During the rotation of the workpiece, the surface is evenly covered with magnetic suspension liquid. When the magnetic suspension liquid drips onto the lower inner surface of the flaw detector 1, it will flow quickly into the receiving box 15. After being filtered by the precision filter screen 16, it flows through the guide channel 17 to the opening on one side of the receiving box 15. Then, the magnetic suspension liquid is transported to the storage tank 8 through the return pipe 19 by the second delivery pump 18. Then, through the movement of the electrode disk 5, the electrode disk 5 generates a magnetic field through the current to magnetize the workpiece and detect defects on the surface of the workpiece.

[0028] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined magnetic particle flaw detector, comprising a flaw detector (1), characterized in that: A connecting groove (6) is provided on one side of the surface of the flaw detector (1). A support plate (7) is fixedly connected to one side of the flaw detector (1). A liquid storage tank (8) is fixedly placed on the surface of the support plate (7). A first delivery pump (9) is connected to one side of the liquid storage tank (8). A connecting pipe (10) is fixedly connected to one side of the first delivery pump (9). A nozzle (11) is fixedly installed at one end of the connecting pipe (10). An electric slide (12) is fixedly installed on one side of the upper surface of the flaw detector (1). A fixing frame (13) is fixedly installed at one end of the electric slide (12). A laser displacement sensor (14) is fixedly installed on one side of the (13) and a receiving box (15) is fixedly installed at one end of the connecting groove (6). A precision filter screen (16) is fixedly installed on one side of the inner wall of the receiving box (15). A guide groove (17) is provided on the lower inner surface of the receiving box (15). A second conveying pump (18) is connected to one side of the receiving box (15). A return pipe (19) is fixedly connected to one side of the second conveying pump (18). Electrode boxes (20) are fixedly installed at both ends of the flaw detector (1). A clamping mechanism (21) is provided at one end of the electrode box (20).

2. The combined magnetic particle flaw detector according to claim 1, characterized in that: The inner surface of the flaw detector (1) is fixedly mounted with a support frame (2), and a rolling ball (3) is embedded in the slot at the top of the support frame (2). The inner walls of the flaw detector (1) are provided with sliding guide rails (4), and both ends of the sliding guide rails (4) are connected to electrode disks (5).

3. The combined magnetic particle flaw detector according to claim 1, characterized in that: The inner lower surface of the flaw detector (1) has a sloping structure and is connected to the connecting groove (6) at its lower part. The fixing frame (13) is fixedly connected to the connecting pipe (10), and the connecting pipe (10) is made of soft material.

4. A combined magnetic particle flaw detector according to claim 1, characterized in that: The guide channel (17) has a sloping structure, and its lower part is connected to the pipe opening on one side of the receiving box (15). The pipe opening is connected to the second delivery pump (18) through a pipe. One end of the return pipe (19) is connected to the liquid storage tank (8).

5. A combined magnetic particle flaw detector according to claim 1, characterized in that: The clamping mechanism (21) includes a sleeve (2101), a first synchronous pulley (2102), a limiting ring (2103), an electrode shaft (2104), a limiting groove (2105), a connecting sleeve (2106), a cylinder (2107), a connector (2108), and a clamping plate (2109). The sleeve (2101) is pierced through and bearing-connected to one side of the electrode box (20). One end of the sleeve (2101) is fixedly connected to the first synchronous pulley (2102), and a limiting ring is fixedly installed on the inner ring of the first synchronous pulley (2102). 2103), one end of the limiting ring (2103) is penetrated by an electrode shaft (2104), the surface of the electrode shaft (2104) is provided with a limiting groove (2105) that fits with the limiting ring (2103), one end of the electrode shaft (2104) is fixedly installed with a connecting sleeve (2106), one side of the outer wall of the electrode box (20) is fixedly installed with a cylinder (2107), the output end of the cylinder (2107) is fixedly connected with a connector (2108), and one end of the electrode shaft (2104) is fixedly installed with a clamping plate (2109).

6. A combined magnetic particle flaw detector according to claim 5, characterized in that: One end of the connector (2108) is fitted into the slot of the connecting sleeve (2106) and forms a rotating structure.

7. A combined magnetic particle flaw detector according to claim 1, characterized in that: A drive motor (22) is fixedly installed on one side of the inner wall of the electrode box (20). The output end of the drive motor (22) is fixedly connected to a second synchronous pulley (23). One end of the second synchronous pulley (23) is fitted with a synchronous belt (24) that is connected to the first synchronous pulley (2102).

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