Magnetic particle flaw detector capable of recycling magnetic suspension

Abstract

The utility model relates to the technical field of magnetic suspension recovery, and discloses a magnetic particle flaw detector capable of recycling magnetic suspension, which comprises a machine base and a machine head, an adsorption plate is arranged on the lower surface of an electrode disc of the machine head, a plurality of magnets are uniformly embedded in the adsorption plate, and the adsorption plate is adsorbed on the side surface of the machine head through the magnets. A corrugated pipe groove is fixed to the side edge of the adsorption plate, an abutting plate is fixed to the tail end of the corrugated pipe groove, air springs are fixedly connected between the two sides of the abutting plate and the two sides of the adsorption plate, and a spraying pipe is transversely arranged above the side edge of the machine head. According to the technical scheme provided by the utility model, the adsorption plate is adsorbed and fixed on the side surface of the machine head below the electrode disc in a magnetic adsorption manner, so that the corrugated pipe groove is formed below the electrode disc, and when the magnetic suspension is sprayed to carry out magnetic powder inspection work, redundant magnetic suspension can be collected through the corrugated pipe groove; after the flaw detection work is finished, the adsorption plate and the corrugated pipe groove can be taken down and are convenient to clean, so that impurities are prevented from being mixed into the collected magnetic suspension during long-term use.

Description

Technical Field

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

[0002] Magnetic particle testing is currently recognized by the non-destructive testing industry as an economical and feasible method for detecting surface and near-surface defects in ferromagnetic materials. It is based on the principle that after the ferromagnetic material and the workpiece are magnetized, the magnetic field lines on the surface and near the surface of the workpiece are locally distorted due to the existence of discontinuities, resulting in a leakage magnetic field. The magnetic particle applied to the surface of the workpiece is adsorbed to form magnetic marks that are visually visible under appropriate lighting, thereby indicating the location, shape and size of the defect.

[0003] During flaw detection, magnetic suspension is often sprayed onto the surface of workpieces. To recycle the magnetic suspension, existing magnetic particle inspection machines are equipped with a sump to collect and recycle the magnetic suspension. However, the sump is located in the base below the machine head, making it difficult to clean over long periods of use. This results in a high concentration of impurities in the collected magnetic suspension. Therefore, we propose a magnetic particle inspection machine that recycles the magnetic suspension. Utility Model Content

[0004] The purpose of the utility model is to provide a magnetic particle flaw detector that circulates magnetic suspension liquid. By utilizing magnetic attraction, an adsorption plate is adsorbed and fixed on the side surface of the machine head below the electrode disk, and a bellows groove is placed below the electrode disk. When the magnetic suspension liquid is sprayed for magnetic particle flaw detection, excess magnetic suspension liquid can be collected through the bellows groove. After the flaw detection work is completed, the adsorption plate and the bellows groove can be removed for easy cleaning, thereby avoiding impurities from mixing into the collected magnetic suspension liquid during long-term use, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic particle flaw detector for circulating magnetic suspension, comprising a machine base and a machine head, wherein the machine head is located on the side surface of the machine base, and the movable electrode box is located on the other side of the machine base surface; an adsorption plate is provided on the surface below the electrode disk of the machine head, and a plurality of magnets are evenly embedded inside the adsorption plate, and the adsorption plate is placed on the side surface of the machine head by adsorption of the magnets, and a bellows groove is fixed on the side of the adsorption plate, and an abutment plate is fixed on the end of the bellows groove, and gas springs are connected and fixed between both sides of the abutment plate and both sides of the adsorption plate; a spray pipe is horizontally arranged above the side of the machine head, and a plurality of spray holes connected to the interior of the spray pipe are evenly arranged on the bottom of the spray pipe.

[0006] By adopting the above technical solution, the adsorption plate is adsorbed and fixed on the side surface of the machine head below the electrode disk. After the electrode box is moved close to and clamped to lock the workpiece, when the magnetic suspension is sprayed, the excess can be collected by the bellows groove. After the work is completed, the adsorption plate and the bellows groove can be easily removed for cleaning.

[0007] Optionally, a rubber pad is fixed to the outer surface of the adsorption plate, and the adsorption plate is in contact with the outer surface of the machine head through the rubber pad.

[0008] By adopting the above technical solution, when the adsorption plate contacts the outer surface of the machine head through the rubber pad, it has a protective effect on the outer surface of the machine head and has a good anti-slip effect.

[0009] Optionally, the spray pipe is placed above the side of the machine head through a support rod support, and the support rod support is fixed to the side above the machine head.

[0010] Optionally, a liquid inlet pipe is connected to the side end of the spray pipe, and the liquid inlet pipe is communicated with the interior of the spray pipe.

[0011] By adopting the above technical solution, the supply equipment of the magnetic suspension liquid is connected with the spray pipe through the liquid inlet pipe.

[0012] Optionally, a hose is connected to the bottom of the bellows groove, and the hose is communicated with the interior of the bellows groove.

[0013] By adopting the above technical solution, the magnetic suspension collected by the bellows groove can be collected into a container through a hose.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The technical solution of the present application utilizes magnetic attraction to adsorb and fix the adsorption plate on the side surface of the machine head below the electrode disk, so that the bellows groove is placed below the electrode disk. When the magnetic suspension is sprayed for magnetic particle inspection, the excess magnetic suspension can be collected through the bellows groove. After the inspection is completed, the adsorption plate and the bellows groove can be removed for easy cleaning, thereby avoiding impurities from mixing into the collected magnetic suspension during long-term use.

[0016] 2. The technical solution of the present application is to place a bellows groove that can be bent or unfolded between the adsorption plate and the abutment plate, and use a gas spring to stretch the bellows groove. The movable electrode box of the flaw detector has different abutment effects on the abutment plate according to the size of the workpiece and the distance between the machine head, so that the bellows groove can always be unfolded and adapted to workpieces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the magnetic particle flaw detector used in the magnetic suspension circulation of the utility model;

[0019] Figure 2This is a schematic diagram of the cross-sectional structure of the adsorption plate of the magnetic particle flaw detector used in the magnetic suspension circulation of the utility model.

[0020] In the figure: 1. Machine base; 2. Machine head; 21. Electrode disk; 3. Adsorption plate; 31. Bellows groove; 311. Hose; 32. Abutment plate; 33. Gas spring; 34. Magnet; 35. Rubber pad; 4. Spray pipe; 41. Support rod; 42. Liquid inlet pipe. DETAILED DESCRIPTION

[0021] See also Figure 1-2 The utility model provides a technical solution: a magnetic particle flaw detector for circulating magnetic suspension, comprising a machine base 1 and a machine head 2, the machine head 2 being located on the side of the surface of the machine base 1, the movable electrode box being located on the other side of the surface of the machine base 1, the side of the machine head 2 and the side of the movable electrode box being provided with electrode disks 21, the workpiece to be tested being placed between the electrode disk 21 of the machine head 2 and the electrode disk 21 of the movable electrode box and being locked.

[0022] A spray pipe 4 is horizontally arranged above the side of the machine head 2. The spray pipe 4 is supported by a support rod 41 and placed above the side of the machine head 2. The support rod 41 is fixed to the side above the machine head 2. The side end of the spray pipe 4 is connected to a liquid inlet pipe 42. The liquid inlet pipe 42 is connected to the interior of the spray pipe 4. A plurality of spray holes connected to the interior are evenly arranged at the bottom of the spray pipe 4. The magnetic suspension is connected to the spray pipe 4 through the liquid inlet pipe 42. The magnetic suspension enters the spray pipe 4 and is then sprayed from the evenly distributed spray holes at the bottom of the spray pipe 4 to the surface of the workpiece. After that, magnetic particle inspection can be carried out.

[0023] An adsorption plate 3 is provided on the lower surface of the electrode disk 21 of the machine head 2. A plurality of magnets 34 are evenly embedded in the adsorption plate 3. A rubber pad 35 is fixed to the outer surface of the adsorption plate 3. Under the magnetic attraction of the magnet 34, the adsorption plate 3 is adsorbed and attached to the side surface of the machine head 2 through the magnet 34. The adsorption plate 3 is in contact with the outer surface of the machine head 2 through the rubber pad 35. A bellows groove 31 is fixed on the side of the adsorption plate 3. A stop plate 32 is fixed on the right end of the bellows groove 31. Both sides of the stop plate 32 are in contact with the adsorption plate 3. Gas springs 33 are connected and fixed between both sides of 3. When the electrode box moves closer to the left, it will contact the right surface of the abutment plate 32 and compress to the left, so that the bellows groove 31 is compressed to the left and is supported by the gas spring 33 to maintain the expanded state. It is placed under the workpiece to receive and collect the excess magnetic suspension sprayed. The bottom of the bellows groove 31 is connected to a hose 311, which is connected to the inside of the bellows groove 31. The collected magnetic suspension can be guided from the hose 311 for discharge and collection.

[0024] When in use, the supply device of magnetic suspension is connected to the spray pipe 4 through the liquid inlet pipe 42, so that the workpiece to be tested is placed between the electrode disk 21 of the flaw detector head 2 and the electrode disk 21 of the mobile electrode box and is clamped and fixed. When the mobile electrode box approaches the head 2, it will abut against the surface of the abutment plate 32, and under the support of the gas spring 33, it will produce a certain compression effect on the bellows groove 31, so that the bellows groove 31 is in an expanded state and placed just below the workpiece. Then the supply device of magnetic suspension is used to supply magnetic suspension to the spray pipe 4. When the suspension is sprayed from the spray pipe 4 toward the workpiece below, the excess magnetic suspension will fall into the bellows groove 31 and be collected, and will be discharged through the hose 311 to achieve the purpose of recycling. After each flaw detection, the adsorption plate 3 can overcome the magnetic attraction and be removed from the side of the machine head 2. Then the bellows groove 31 and the hose 311 can be cleaned. After cleaning and drying, the adsorption plate 3 is again adsorbed by the magnet 34 and pressed against the surface of the machine head 2 through the rubber pad 35 for next use.

Claims

1. A magnetic particle flaw detector for circulating magnetic suspension, comprising a base (1) and a head (2), characterized in that: The machine head (2) is located on the side of the surface of the machine base (1), and the movable electrode box is located on the other side of the surface of the machine base (1); An adsorption plate (3) is provided on the lower surface of the electrode disk (21) of the machine head (2), and a plurality of magnets (34) are uniformly embedded in the adsorption plate (3). The adsorption plate (3) is adsorbed and placed on the side surface of the machine head (2) by the magnets (34). A bellows groove (31) is fixed to the side of the adsorption plate (3), and a support plate (32) is fixed to the end of the bellows groove (31). Gas springs (33) are connected and fixed between both sides of the support plate (32) and both sides of the adsorption plate (3); A spray pipe (4) is transversely arranged above the side of the machine head (2), and a plurality of spray holes communicating with the interior of the spray pipe (4) are evenly arranged at the bottom of the spray pipe (4).

2. The magnetic particle flaw detector for circulating magnetic suspension according to claim 1, characterized in that: A rubber pad (35) is fixedly attached to the outer surface of the adsorption plate (3), and the adsorption plate (3) contacts the outer surface of the machine head (2) through the rubber pad (35).

3. The magnetic particle flaw detector for circulating magnetic suspension according to claim 1, characterized in that: The spray pipe (4) is supported by a support rod (41) and is placed above the side of the machine head (2). The support rod (41) is supported and fixed to the side above the machine head (2).

4. The magnetic particle flaw detector for circulating magnetic suspension according to claim 1, characterized in that: The side end of the spray pipe (4) is connected to a liquid inlet pipe (42), and the liquid inlet pipe (42) is communicated with the interior of the spray pipe (4).

5. The magnetic particle flaw detector for circulating magnetic suspension according to claim 1, characterized in that: The bottom of the bellows groove (31) is connected to a hose (311), and the hose (311) is communicated with the interior of the bellows groove (31).

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