A magnetic particle flaw detection device for forgings

Abstract

The present invention discloses a forging magnetic particle flaw detection device, which relates to the technical field of forging detection, including a base plate and a light shielding component, wherein the outer wall of the base plate is provided with a light shielding component, and the light shielding component includes an enclosure frame, an enclosure box, an oil pipe, a piston rod, a telescopic spring, a light shielding pin column and a memory foam head, and the outer wall of the enclosure frame is fixed with the enclosure box. In the forging magnetic particle flaw detection device, magnetic traces are clearly displayed under the illumination of fluorescent lamps. Since the fluorescent magnetic particle flaw detection is performed in the inner space of the U-shaped structure composed of the light shielding pin columns, the fluorescent magnetic traces cannot be weakened by strong external light, so as to ensure that the fluorescent magnetic traces are clearly displayed for observation, and each light shielding pin column and its upper and lower accessories are independent, so as to adapt to forgings with special-shaped structures in the detection surface, and the light shielding pin column with the U-shaped structure can prevent the fluorescent magnetic powder suspension from splashing outward, so as to prevent the fluorescent magnetic powder suspension from splashing onto personnel.

Description

Technical Field

[0001] The invention relates to the technical field of forging detection, in particular to a forging magnetic particle flaw detection device. Background Art

[0002] Magnetic particle inspection of forgings uses electromagnets to generate leakage magnetic fields at the surface defects of forgings. By evenly spraying magnetic powder on the surface of the forgings, the magnetic powder gathers in the leakage magnetic field to form magnetic marks that can be observed by the naked eye. By observing the shape and size of the magnetic layer, it can be clearly known whether the surface defects of the forgings are serious.

[0003] When the existing magnetic particle inspection technology is used to inspect the surface of forgings, fluorescent magnetic powder suspensions and fluorescent lamps are used to highlight the magnetic marks. The magnetic marks produced by the fluorescent magnetic powder suspension can be displayed in bright yellow-green under the action of fluorescent lamps. However, in actual use, the highlight display of the fluorescent magnetic powder suspension is easily affected by the brightness of the external ambient light. The brighter the ambient light, the easier it is to affect the display effect of the fluorescent magnetic marks, resulting in a reduction in the display effect of the fluorescent magnetic marks.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a forging magnetic particle flaw detection device is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a forging magnetic particle flaw detection device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical scheme: a forging magnetic particle flaw detection device, comprising a base plate and a shading assembly, the outer wall of the base plate is provided with a shading assembly, the shading assembly comprises an enclosure frame, an enclosure box, an oil pipe, a piston rod, a telescopic spring, a light-blocking needle column and a memory foam head, the outer wall of the enclosure frame is fixed with an enclosure box, and the interior of the enclosure box is evenly distributed with oil pipes, the interior of the oil pipe is penetrated by a piston rod, and the exterior of the piston rod is sleeved with a telescopic spring, the end of the piston rod away from the oil pipe passes through the bottom of the enclosure box and is fixedly connected to the light-blocking needle column, and the bottom of the light-blocking needle column is fixed with a memory foam head.

[0007] Furthermore, one end of the telescopic spring is fixedly connected to the circular convex plate in the middle of the piston rod, and the other end of the telescopic spring is fixedly connected to the end of the oil pipe.

[0008] Furthermore, the side surfaces of the light-blocking pin columns are fitted with each other, and the light-blocking pin columns are distributed below the enclosure box in a "mouth" shape.

[0009] Furthermore, a handle is fixed on the upper surface of the base plate, and a first magnetic arm is arranged on one side of the bottom of the base plate, and a second magnetic arm is arranged on the other side of the bottom of the base plate.

[0010] Furthermore, the bottom heights of the second magnetic arm and the first magnetic arm are lower than the bottom height of the enclosure box, and the lower portion of the outer wall of the enclosure box fits with the upper portion of the side surface of the light-blocking needle column, and the memory foam head has a flexible structure.

[0011] Furthermore, a spray head is fixedly passed through the middle of the base plate, and a delivery pipe is connected to the side of the spray head. The delivery pipe is connected to a storage box through a pump body, and the storage box stores fluorescent magnetic powder suspension.

[0012] Furthermore, a fluorescent lamp is fixed on the bottom surface of the base plate on one side of the spray head, and a camera is fixed on the bottom surface of the base plate on the other side of the spray head.

[0013] Furthermore, a power supply line is fixed to one side of the handle, and the second magnetic arm and the first magnetic arm are connected to a power source through the power supply line, and the power source also supplies power to the fluorescent lamp and the camera through the power supply line.

[0014] Furthermore, one end of the oil pipe away from the light-blocking needle column is connected to an oil branch pipe, and the oil branch pipe is embedded in the interior of the enclosure box.

[0015] Furthermore, a transmission cleaning assembly is fixed to the inner wall of the enclosure frame, and the transmission cleaning assembly includes an oil collecting pipe, an elastic transmission rod, a connecting frame and a cleaning roller. The elastic transmission rod is passed through the interior of the oil collecting pipe, and the end of the elastic transmission rod is fixed with a connecting frame, and a cleaning roller is rotatably connected to the inner side of the connecting frame. The oil collecting pipe is connected to the oil branch pipe, and the transmission cleaning assembly also includes an electronic lock. The end of the oil collecting pipe is provided with an electronic lock outside the elastic transmission rod, and a pressure sensor is provided inside the oil collecting pipe.

[0016] The present invention provides a forging magnetic particle flaw detection device, which has the following beneficial effects:

[0017] 1. In the forging magnetic particle flaw detection device, magnetic traces are clearly displayed under the illumination of fluorescent light, and the magnetic traces are captured by a camera and remotely transmitted to a flat-panel display for observation. Since the fluorescent magnetic particle flaw detection is carried out in the U-shaped internal space composed of light-blocking needle columns, the fluorescent magnetic traces cannot be weakened by strong external light, so as to ensure that the fluorescent magnetic traces are clearly displayed for easy observation. Moreover, each light-blocking needle column and its upper and lower accessories are independent, so it is suitable for forgings with special-shaped structures on the detection surface. Moreover, the light-blocking needle column with the U-shaped structure can prevent the fluorescent magnetic powder suspension from splashing outward, so as to prevent the fluorescent magnetic powder suspension from splashing onto personnel.

[0018] 2. In the forging magnetic particle flaw detection device, when the piston rod is pressed into the oil tube under force, the oil inside the oil tube is squeezed, and the oil moves along the inside of the oil tube and is gathered into the oil collecting tube. The oil inside the oil collecting tube is gathered, causing the elastic transmission rod to extend, so that the elastic transmission rod carries the cleaning roller and rolls against the surface of the camera, thereby cleaning the surface of the camera lens when the fluorescent magnetic powder suspension is splashed on the surface of the camera lens to ensure the clarity of the transmitted image.

[0019] 3. In the forging magnetic particle flaw detection device, the pressure sensor inside the oil manifold monitors the internal pressure in real time. If the pressure does not reach the preset value or there is no liquid attached to the lens surface, the electronic lock locks the elastic transmission rod to prevent the elastic transmission rod from extending, thereby preventing the elastic transmission rod from extending insufficiently and blocking the camera lens surface to affect shooting. If the lens surface is attached with liquid and the pressure reaches the preset value, the electronic lock is unlocked, and the elastic transmission rod (extended) is attached to the camera surface through the cleaning roller and rolled to clean it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the top surface structure of a base plate of a forging magnetic particle flaw detection device of the present invention;

[0021] Figure 2 It is a schematic diagram of the bottom surface structure of a light-shielding needle column of a forging magnetic particle flaw detection device of the present invention;

[0022] Figure 3 This is a schematic diagram of the bottom surface structure of a base plate of a forging magnetic particle flaw detection device of the present invention;

[0023] Figure 4 It is a schematic diagram of the connection structure between the oil pipe and the piston rod of a forging magnetic particle flaw detection device of the present invention;

[0024] Figure 5 It is a schematic diagram of the separation structure of the piston rod and the oil pipe of a forging magnetic particle flaw detection device of the present invention;

[0025] Figure 6 A forging magnetic particle flaw detection device according to the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. base plate; 2. handle; 3. first magnetic arm; 4. second magnetic arm; 5. shading assembly; 501. enclosure frame; 502. enclosure box; 503. oil pipe; 504. piston rod; 505. telescopic spring; 506. light-shielding needle column; 507. memory foam head; 6. spray head; 7. delivery pipe; 8. fluorescent lamp; 9. camera; 10. power supply line; 11. oil branch pipe; 12. transmission cleaning assembly; 1201. oil collection pipe; 1202. elastic transmission rod; 1203. connecting frame; 1204. cleaning roller; 1205. electronic lock. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] like Figure 1-Figure 6 As shown, the present invention provides a technical solution: a forging magnetic particle flaw detection device, comprising a base plate 1 and a shading component 5, the outer wall of the base plate 1 is provided with the shading component 5, the shading component 5 comprises an enclosure frame 501, an enclosure box 502, an oil pipe 503, a piston rod 504, a telescopic spring 505, a light shielding needle column 506 and a memory foam head 507, the outer wall of the enclosure frame 501 is fixed with the enclosure box 502, and the interior of the enclosure box 502 is evenly distributed with oil pipes 503, and the interior of the oil pipes 503 A piston rod 504 is passed through, and a telescopic spring 505 is sleeved on the outside of the piston rod 504. The end of the piston rod 504 away from the oil pipe 503 passes through the bottom of the enclosure box 502 and is fixedly connected to a light-blocking needle column 506. A memory foam head 507 is fixed to the bottom of the light-blocking needle column 506. One end of the telescopic spring 505 is fixedly connected to the circular convex plate in the middle of the piston rod 504, and the other end of the telescopic spring 505 is fixedly connected to the end of the oil pipe 503. The sides of the light-blocking needle columns 506 fit each other, and The light-shielding needle column 506 is distributed in the shape of a "mouth" below the enclosure box 502. A handle 2 is fixed to the upper surface of the base plate 1, and a first magnetic arm 3 is arranged on one side of the bottom of the base plate 1, and a second magnetic arm 4 is arranged on the other side of the bottom of the base plate 1. The bottom heights of the second magnetic arm 4 and the first magnetic arm 3 are lower than the bottom height of the enclosure box 502, and the lower part of the outer wall of the enclosure box 502 fits with the upper part of the side of the light-shielding needle column 506. The memory foam head 507 is a flexible structure, and a spray nozzle 507 is fixed through the middle of the base plate 1. A spray head 6, and a delivery pipe 7 is connected to the side of the spray head 6, and the delivery pipe 7 is connected to a storage box through a pump body, and a fluorescent magnetic powder suspension is stored inside the storage box, a fluorescent lamp 8 is fixed to the bottom surface of the base plate 1 on one side of the spray head 6, and a camera 9 is fixed to the bottom surface of the base plate 1 on the other side of the spray head 6, a power supply line 10 is fixed to one side of the handle 2, and the second magnetic arm 4 and the first magnetic arm 3 are connected to a power supply through the power supply line 10, and the power supply also supplies power to the fluorescent lamp 8 and the camera 9 through the power supply line 10;

[0029] The specific operation is as follows. When using the forging magnetic particle flaw detection device, the handle 2 is manually held to vertically place the second magnetic arm 4 and the first magnetic arm 3 on the surface to be inspected of the workpiece to be inspected. At this time, the flexible memory cotton head 507 is subjected to force and is flattened. At the same time, the piston rod 504 and the light-blocking needle column 506 are forced to be lifted up so that the piston rod 504 is retracted into the oil pipe 503, and the telescopic spring 505 is compressed at the same time. Each light-blocking needle column 506 and its upper and lower accessories are independent. Therefore, when the surface to be inspected is a special-shaped structure, the elastic action of each light-blocking needle column 506 makes the second magnetic arm 4 and the first magnetic arm 3 vertically attached to the surface to be inspected, and each light-blocking needle column 506 is adapted to the characteristics to be inspected. The inner space of the U-shaped inner space formed by the light-blocking needle columns 506 is isolated from the external space, and the memory cotton head 507 is forced to be flattened to enhance the sealing effect between the bottom end of the light-blocking needle column 506 and the surface to be inspected of the workpiece;

[0030] After the U-shaped internal space is separated from the external space, strong external light cannot affect the U-shaped internal space. At this time, the power supply supplies power to the fluorescent lamp 8, the camera 9, the second magnetic arm 4, and the first magnetic arm 3 through the power supply line 10. The second magnetic arm 4 and the first magnetic arm 3 are attached to the surface of the forging to apply a magnetic field, and the fluorescent magnetic powder suspension is extracted by a water pump and sprayed toward the surface of the forging from the spray head 6. The discontinuities on the surface of the workpiece generate leakage magnetic fields and adsorb the fluorescent magnetic powder to produce obvious magnetic traces. The magnetic traces are clearly displayed under the illumination of the fluorescent lamp 8, and the magnetic traces are captured by the camera 9 and remotely transmitted to the flat panel display for observation. Since the fluorescent magnetic powder flaw detection is carried out in the U-shaped internal space composed of the light-blocking needle column 506, the strong external light cannot weaken the fluorescent magnetic traces, so as to ensure that the fluorescent magnetic traces are clearly displayed for observation.

[0031] Moreover, the fluorescent magnetic powder suspension is sprayed from the spray head 6 toward the forging surface in the U-shaped internal space, and the light-blocking needle column 506 of the U-shaped structure can prevent the fluorescent magnetic powder suspension from splashing outward to prevent the fluorescent magnetic powder suspension from splashing onto personnel.

[0032] like Figure 1-Figure 6As shown, one end of the oil pipe 503 away from the light-blocking needle column 506 is connected to the oil branch pipe 11, and the oil branch pipe 11 is embedded in the interior of the enclosure box 502, and the inner wall of the enclosure frame 501 is fixed with a transmission cleaning component 12, and the transmission cleaning component 12 includes an oil collection pipe 1201, an elastic transmission rod 1202, a connecting frame 1203 and a cleaning roller 1204, the interior of the oil collection pipe 1201 is penetrated by an elastic transmission rod 1202, and the end of the elastic transmission rod 1202 is fixed with a connecting frame 1203, the inner side of the connecting frame 1203 is rotatably connected with a cleaning roller 1204, the oil collection pipe 1201 is connected to the oil branch pipe 11, and the transmission cleaning component 12 also includes an electronic lock 1205, and the end of the oil collection pipe 1201 is provided with an electronic lock 1205 on the outside of the elastic transmission rod 1202, and the interior of the oil collection pipe 1201 is provided with a pressure sensor;

[0033] The specific operation is as follows: when the piston rod 504 is pressed into the oil pipe 503 under force, the oil in the oil pipe 503 is pushed, and the oil moves along the inside of the oil pipe 503 and is gathered into the oil collection pipe 1201. The oil in the oil collection pipe 1201 is gathered to cause the elastic transmission rod 1202 to extend, so that the elastic transmission rod 1202 carries the cleaning roller 1204 and rolls on the surface of the camera 9, thereby cleaning the surface of the camera 9 lens when the fluorescent magnetic powder suspension is splashed on the surface of the camera 9 to ensure the clarity of the transmitted image;

[0034] Among them, when the piston rod 504 is pressed into the oil tube 503 under force, the oil is pushed, and at the same time, the pressure sensor inside the oil collection pipe 1201 monitors its internal pressure in real time. If the pressure does not reach the preset value or there is no liquid attached to the lens surface, the electronic lock 1205 locks the elastic transmission rod 1202 to prevent the elastic transmission rod 1202 from extending, and the elastic transmission rod 1202 is an elastic telescopic rod, thereby preventing the elastic transmission rod 1202 from extending insufficiently and blocking the lens surface of the camera 9 to affect shooting. If the lens surface is attached to liquid and the pressure reaches the preset value, the electronic lock 1205 is unlocked, and at the same time, the elastic transmission rod 1202 extends and passes through the cleaning roller 1204 to roll on the surface of the camera 9 for cleaning.

[0035] In summary, when using the forging magnetic particle flaw detection device, firstly, when using the forging magnetic particle flaw detection device, manually hold the handle 2 to vertically place the second magnetic arm 4 and the first magnetic arm 3 on the surface to be detected of the workpiece to be detected. At this time, the flexible memory cotton head 507 is pressed and flattened, and at the same time, the piston rod 504 and the light-blocking needle column 506 are forced to be lifted up so that the piston rod 504 is retracted into the oil pipe 503, and the telescopic spring 505 is compressed at the same time, and each light-blocking needle column 506 and its upper and lower accessories are independent. Therefore, when the surface to be detected is a special-shaped structure, the elastic action of each light-blocking needle column 506 makes the second magnetic arm 4 and the first magnetic arm 3 vertically attached to the surface to be detected, and each light-blocking needle column 506 is adapted to the characteristics to be detected, and the inner space of the U-shaped shape formed by the light-blocking needle column 506 is isolated from the external space;

[0036] After the U-shaped internal space is separated from the external space, strong external light cannot affect the U-shaped internal space. At this time, the power supply supplies power to the fluorescent lamp 8, the camera 9, the second magnetic arm 4, and the first magnetic arm 3 through the power supply line 10. The second magnetic arm 4 and the first magnetic arm 3 are attached to the surface of the forging to apply a magnetic field, and the fluorescent magnetic powder suspension is extracted by a water pump and sprayed toward the surface of the forging from the spray head 6. The discontinuities on the surface of the workpiece generate leakage magnetic fields and adsorb the fluorescent magnetic powder to produce obvious magnetic traces. The magnetic traces are clearly displayed under the illumination of the fluorescent lamp 8, and the magnetic traces are captured by the camera 9 and remotely transmitted to the flat panel display for observation. Since the fluorescent magnetic powder flaw detection is carried out in the U-shaped internal space composed of the light-blocking needle column 506, the strong external light cannot weaken the fluorescent magnetic traces, so as to ensure that the fluorescent magnetic traces are clearly displayed for observation.

[0037] When the piston rod 504 is pressed into the oil pipe 503 under force, the oil in the oil pipe 503 is pushed, and the oil moves along the inside of the oil pipe 503 and is gathered into the oil collection pipe 1201. The oil in the oil collection pipe 1201 is gathered to cause the elastic transmission rod 1202 to extend, so that the elastic transmission rod 1202 carries the cleaning roller 1204 and rolls on the surface of the camera 9, thereby cleaning the lens surface of the camera 9 when the fluorescent magnetic powder suspension is splashed on the lens surface of the camera 9;

[0038] Among them, when the piston rod 504 is pressed into the oil tube 503 under force, the oil is pushed, and at the same time, the pressure sensor inside the oil collection pipe 1201 monitors its internal pressure in real time. If the pressure does not reach the preset value or there is no liquid attached to the lens surface, the electronic lock 1205 locks the elastic transmission rod 1202 to prevent the elastic transmission rod 1202 from extending, and the elastic transmission rod 1202 is an elastic telescopic rod, thereby preventing the elastic transmission rod 1202 from extending insufficiently and blocking the lens surface of the camera 9 to affect shooting. If the lens surface is attached to liquid and the pressure reaches the preset value, the electronic lock 1205 is unlocked, and at the same time, the elastic transmission rod 1202 extends and passes through the cleaning roller 1204 to roll on the surface of the camera 9 for cleaning.

[0039] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A forging magnetic particle flaw detection device, comprising a base plate (1) and a light shielding component (5), characterized in that: The outer wall of the base plate (1) is provided with a shading assembly (5), the shading assembly (5) comprising an enclosure frame (501), an enclosure box (502), an oil pipe (503), a piston rod (504), a telescopic spring (505), a light-shielding needle column (506) and a memory foam head (507), the outer wall of the enclosure frame (501) is fixed with the enclosure box (502), and the oil pipes (503) are evenly distributed inside the enclosure box (502), and the oil pipes (503) are arranged on the outer wall of the enclosure frame (501). 03) is penetrated by a piston rod (504), and a telescopic spring (505) is sleeved on the outside of the piston rod (504); one end of the piston rod (504) away from the oil pipe (503) passes through the bottom of the enclosure box (502) and is fixedly connected to a light-blocking needle column (506); a memory foam head (507) is fixed to the bottom of the light-blocking needle column (506); one end of the oil pipe (503) away from the light-blocking needle column (506) is connected to an oil branch pipe (11), and the oil The liquid branch pipe (11) is embedded in the interior of the enclosure box (502); a transmission cleaning assembly (12) is fixed to the inner wall of the enclosure frame (501); the transmission cleaning assembly (12) comprises an oil collection pipe (1201), an elastic transmission rod (1202), a connecting frame (1203) and a cleaning roller (1204); an elastic transmission rod (1202) is passed through the interior of the oil collection pipe (1201), and a connecting rod (1203) is fixed at the end of the elastic transmission rod (1202). The connecting frame (1203) is rotatably connected to a cleaning roller (1204) on the inner side of the connecting frame (1203); the oil collecting pipe (1201) is connected to the oil branch pipe (11); the transmission cleaning component (12) further comprises an electronic lock (1205); an end of the oil collecting pipe (1201) is provided with an electronic lock (1205) outside the elastic transmission rod (1202); and a pressure sensor is provided inside the oil collecting pipe (1201).

2. A forging magnetic particle flaw detection device according to claim 1, characterized in that: One end of the telescopic spring (505) is fixedly connected to the circular convex plate in the middle of the piston rod (504), and the other end of the telescopic spring (505) is fixedly connected to the end of the oil pipe (503).

3. A forging magnetic particle flaw detection device according to claim 1, characterized in that: The side surfaces of the light-blocking needle columns (506) are fitted together, and the light-blocking needle columns (506) are distributed below the enclosure box (502) in a "mouth" shape.

4. A forging magnetic particle flaw detection device according to claim 1, characterized in that: A handle (2) is fixed on the upper surface of the base plate (1), a first magnetic arm (3) is arranged on one side of the bottom of the base plate (1), and a second magnetic arm (4) is arranged on the other side of the bottom of the base plate (1).

5. A forging magnetic particle flaw detection device according to claim 4, characterized in that: The bottom heights of the second magnetic arm (4) and the first magnetic arm (3) are lower than the bottom height of the enclosure box (502), and the lower portion of the outer wall of the enclosure box (502) fits with the upper portion of the side surface of the light-blocking needle column (506), and the memory foam head (507) is a flexible structure.

6. A forging magnetic particle flaw detection device according to claim 1, characterized in that: A spray head (6) is fixedly passed through the middle of the base plate (1), and a delivery pipe (7) is connected to the side of the spray head (6). The delivery pipe (7) is connected to a storage box through a pump body, and fluorescent magnetic powder suspension is stored inside the storage box.

7. A forging magnetic particle flaw detection device according to claim 6, characterized in that: A fluorescent lamp (8) is fixed on one side of the spray head (6) to the bottom surface of the base plate (1), and a camera (9) is fixed on the other side of the spray head (6) to the bottom surface of the base plate (1).

8. A forging magnetic particle flaw detection device according to claim 4, characterized in that: A power supply line (10) is fixed to one side of the grip (2), and the second magnetic arm (4) and the first magnetic arm (3) are connected to a power source via the power supply line (10), and the power source also supplies power to the fluorescent lamp (8) and the camera (9) via the power supply line (10).

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