Magnetic powder spraying equipment for magnetic powder detection

Abstract

The utility model discloses magnetic powder spraying equipment for magnetic powder detection, which comprises a magnetic powder spraying table, a magnetic powder uniform dispersion adjusting mechanism is arranged on the front side of the magnetic powder spraying table, and the magnetic powder uniform dispersion adjusting mechanism comprises an outer support arm, a rotating lead screw, an adjusting sliding block, a sliding arm, a limiting plate and a clamping arm. In the process of spraying magnetic powder on a metal material, a motor controls a rotating lead screw to rotate, after the rotating lead screw rotates, two adjusting sliding blocks in threaded connection with the outer side of the rotating lead screw move on the surface of the magnetic powder spraying table through sliding arms and clamping arms, and in the moving process of the clamping arms, the magnetic powder is sprayed on the surface of the magnetic powder spraying table. The metal material located between the two clamping arms can pass to the lower side of the powder outlet spray head at a constant speed, when different positions of the metal material moving at the constant speed pass through the powder outlet spray head, magnetic powder can be evenly adsorbed to the surface of the metal material, and therefore the problem that at present, the magnetic powder is sprayed to different positions of the metal material and distributed unevenly is solved.

Description

Technical Field

[0001] The utility model relates to a spraying device, in particular to a magnetic powder spraying device for magnetic powder detection. Background Art

[0002] Magnetic particle testing is a non-destructive testing method, mainly used to detect defects such as cracks and flaws on the surface and near the surface of materials. When performing magnetic particle testing, the workpiece needs to be magnetized first to form a magnetic field on its surface. Then, the magnetic powder is evenly sprayed on the surface of the workpiece using a magnetic powder spraying device. The magnetic powder will gather at the defects of the workpiece due to the attraction of the magnetic field, thus forming a visible accumulation of magnetic powder. In this way, it is possible to determine whether there are defects on the surface of the workpiece by observing the distribution of the magnetic powder.

[0003] The prior art, for example, has an application number of CN201921766164.X, which discloses a magnetic powder detection device, and relates to a detection device technical field. The utility model includes a base and a frame, a discharge box is provided on the base, a mixing drum is provided on the frame, a discharge port of the mixing drum is connected to a feed port of the discharge box, a stirring device is provided at the upper end of the mixing drum, a discharge structure is provided at the lower end of the mixing drum, the discharge box includes a left box body, a right box body and a feeding pipeline, a left box body is provided at the left end of the feeding pipeline, a right box body is provided at the right end of the feeding pipeline, a feeding port of the feeding pipeline is connected to a discharge port of the discharge structure, and a discharge port of the feeding pipeline is connected to a magnetic powder discharge port. The utility model has a simple structure and is easy to operate. The magnetic powder is firstly fully and evenly stirred by the stirring drum. When the feeding pipeline enters the magnetic powder outlet, the first fan and the second fan blow the magnetic powder in the feeding pipeline through the ventilation holes on the third guide plate and the fourth guide plate to keep the magnetic powder in a uniform state.

[0004] Another existing technology is CN202320023244.6, a spraying device for magnetic particle detection of steel structure parent material

[0005] CN202122775921.3, a magnetic particle detection device that is easy to operate

[0006] CN202120616368.6, a new energy-saving and environmentally friendly magnetic particle detection equipment. However, the above typical and existing technologies still have certain problems when used:

[0007] When the current magnetic powder spraying equipment sprays magnetic powder to detect surface defects of metal materials, since metal materials usually have length, during the magnetic powder spraying process, it is necessary to adjust the position of the metal material so that the magnetic powder can be sprayed on different positions of the metal material. The above-mentioned comparative documents do not have relevant metal material position adjustment mechanisms. During the actual magnetic powder spraying process, the metal material needs to be manually moved. Since this method cannot control the moving speed of the metal material, when the speed is slow, it is easy to cause some magnetic powder to be sprayed too much. Conversely, less magnetic powder will be sprayed. Therefore, it is necessary to design a magnetic powder spraying equipment that can evenly spray magnetic powder on metal materials. Utility Model Content

[0008] The utility model aims to provide a magnetic powder spraying device for magnetic powder detection to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic powder spraying device for magnetic powder detection, comprising a magnetic powder spraying platform, a magnetic powder uniform dispersion adjustment mechanism is arranged on the front side of the magnetic powder spraying platform, the magnetic powder uniform dispersion adjustment mechanism comprises an outer support arm, a rotating screw, an adjustment slider, a sliding arm, a limit plate and a clamping arm, the outer support arm is fixedly connected to the front side of the magnetic powder spraying platform, a rotating screw is arranged on the front side of the outer support arm, and the rotating screw is rotatably connected to the outer support arm, the left and right sides of the rotating screw are both threadedly connected with adjustment sliders, and the upper surfaces of the two adjustment sliders are both fixedly connected with sliding A movable arm, the upper surfaces of the two sliding arms are slidably connected with a clamping arm, one end of the clamping arm away from the adjusting slider is slidably connected to the upper surface of the magnetic powder spraying platform, a motor is arranged on the outer side of the outer support arm, the output end of the motor is transmission-connected with the rotating lead screw, a limiting screw is arranged through the middle of the sliding arm, and the sliding arm is threadedly connected with the limiting screw, one end of the limiting screw away from the sliding arm is rotationally connected to the inner side of the limiting plate, the lower end of the limiting plate is fixedly connected to the upper surface of the sliding arm, a rotating ring is rotationally connected to the outer side of the limiting plate, and the rotating ring is transmission-connected with the limiting screw;

[0010] An anti-scattering mechanism is arranged above the clamping arm, and the anti-scattering mechanism comprises a fixed baffle and an electromagnetic sheet. The lower end of the fixed baffle is fixedly connected to the upper surface of the clamping arm, and a plurality of electromagnetic sheets are arranged inside the fixed baffle.

[0011] As a preferred technical solution of the utility model, a material limiting mechanism is arranged in the middle of the clamping arm, and the material limiting mechanism comprises an electromagnet ring, a damping telescopic rod, a limiting spring and a fixing ring, and the electromagnet ring is arranged on the inner side of the clamping arm.

[0012] As a preferred technical solution of the utility model, the outer side of the electromagnet ring is fixedly connected to the free end of the damping telescopic rod, the middle part of the damping telescopic rod passes through the clamping arm, and the fixed end of the damping telescopic rod is fixedly connected to the inner side of the fixing ring, and the fixing ring is fixedly connected to the outer side of the clamping arm.

[0013] As a preferred technical solution of the utility model, a limit spring is sleeved on the outer side of the damping telescopic rod, and two ends of the limit spring are respectively attached to the inner side of the fixing ring and the outer side of the electromagnet ring.

[0014] As a preferred technical solution of the utility model, a metal material is arranged between the two electromagnet rings.

[0015] As a preferred technical solution of the utility model, a rotating arm is rotatably connected to one side of the upper surface of the magnetic powder spraying platform, a magnetic powder box is fixedly connected to the end of the rotating arm away from the magnetic powder spraying platform, a powder discharge nozzle is fixedly connected to the lower surface of the magnetic powder box, a magnetic pump is arranged inside the magnetic powder box, and the powder discharge nozzle is connected to the output end of the magnetic pump in the magnetic powder box.

[0016] As a preferred technical solution of the utility model, an introduction slot is provided in the middle of the magnetic powder spraying platform, a magnetic powder storage box is provided below the introduction slot, and the magnetic powder storage box is provided on the lower surface of the magnetic powder spraying platform.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model sets a magnetic powder uniform dispersion adjustment mechanism. During the process of spraying magnetic powder on metal materials, the rotating screw is controlled by a motor to rotate. After the rotating screw rotates, two adjustment sliders threadedly connected to the outer side of the rotating screw move on the surface of the magnetic powder spraying platform through the sliding arm together with the clamping arm. During the movement of the clamping arm, the metal material located between the two clamping arms can pass to the lower side of the powder discharge nozzle at a uniform speed. When different positions of the metal material moving at a uniform speed pass the position of the powder discharge nozzle, the magnetic powder can be uniformly adsorbed on the surface of the metal material, thereby solving the problem of uneven distribution of magnetic powder sprayed on different positions of the metal material.

[0019] 2. The utility model is provided with an anti-splashing mechanism. When magnetic powder is sprayed on the surface of metal materials through the powder discharge nozzle via the magnetic pump, as the amount of magnetic powder on the surface of the metal materials increases, some magnetic powder may not be adsorbed on the surface of the metal materials. The scattered magnetic powder is blocked by the fixed baffle and adsorbed on the surfaces of multiple electromagnetic sheets on the inner side of the fixed baffle, so as to prevent the scattered magnetic powder from floating on the outside of the magnetic powder spraying platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the rear structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model from an oblique downward perspective;

[0023] Figure 4 It is a structural schematic diagram of the magnetic powder uniform dispersion adjustment mechanism in the utility model.

[0024] In the figure: 1. Magnetic powder spraying station; 2. Magnetic powder box; 3. Magnetic powder scattering adjustment mechanism; 301. Outer support arm; 302. Rotating screw; 303. Motor; 304. Adjusting slider; 305. Sliding arm; 306. Limiting plate; 307. Limiting screw; 308. Rotating ring; 309. Clamping arm; 4. Anti-scattering mechanism; 401. Fixed baffle; 402. Electromagnetic sheet; 5. Magnetic powder storage box; 6. Inlet slot; 7. Material limiting mechanism; 701. Electromagnetic ring; 702. Damping telescopic rod; 703. Limiting spring; 704. Fixed ring; 8. Rotating arm; 9. Powder discharge nozzle; 10. Metal material. DETAILED DESCRIPTION

[0025] The following will be combined with 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 in 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.

[0026] See also Figure 1-4 The utility model provides a technical solution for magnetic powder spraying equipment for magnetic powder detection:

[0027] Embodiment 1:

[0028] according to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a magnetic powder spraying device for magnetic powder detection includes a magnetic powder spraying platform 1, a magnetic powder uniform dispersion adjustment mechanism 3 is arranged on the front side of the magnetic powder spraying platform 1, and the magnetic powder uniform dispersion adjustment mechanism 3 includes an outer support arm 301, a rotating screw 302, an adjustment slider 304, a sliding arm 305, a limit plate 306 and a clamping arm 309, the outer support arm 301 is fixedly connected to the front side of the magnetic powder spraying platform 1, a rotating screw 302 is arranged on the front side of the outer support arm 301, and the rotating screw 302 is rotatably connected to the outer support arm 301, the left and right sides of the rotating screw 302 are both threadedly connected with the adjustment slider 304, the upper surfaces of the two adjustment sliders 304 are both fixedly connected with the sliding arms 305, the upper surfaces of the two sliding arms 305 are both slidably connected with the clamping arms 309, and the end of the clamping arm 309 away from the adjustment slider 304 is slidably connected to the upper surface of the magnetic powder spraying platform 1 A motor 303 is arranged on the outside of the outer support arm 301, and the output end of the motor 303 is transmission connected to the rotating screw 302, and a limiting screw 307 is arranged through the middle of the sliding arm 305, and the sliding arm 305 is threadedly connected to the limiting screw 307, and the end of the limiting screw 307 away from the sliding arm 305 is rotatably connected to the inner side of the limiting plate 306, and the lower end of the limiting plate 306 is fixedly connected to the upper surface of the sliding arm 305, and a rotating ring 308 is rotatably connected to the outer side of the limiting plate 306, and the rotating ring 308 is transmission connected to the limiting screw 307. By twisting the rotating ring 308 to rotate the limiting screw 307, the distance between the clamping arm 309 and the limiting plate 306 can be adjusted, so that it is suitable for metal materials 10 of different lengths. It should be noted that the metal material 10 is specifically a magnetic material, such as iron, nickel, cobalt, etc.

[0029] During specific use, the utility model provides a magnetic powder spraying device for magnetic powder detection. During the process of spraying magnetic powder on metal material 10, the rotation of rotating screw 302 is controlled by motor 303. After the rotating screw 302 rotates, two adjustment sliders 304 threadedly connected to the outer side of rotating screw 302 are moved on the surface of magnetic powder spraying platform 1 through sliding arm 305 together with clamping arm 309. During the movement of clamping arm 309, metal material 10 located between two clamping arms 309 can pass to the lower side of powder discharge nozzle 9 at a uniform speed. When different positions of metal material 10 moving at a uniform speed pass the position of powder discharge nozzle 9, the magnetic powder can be evenly adsorbed on the surface of metal material 10, thereby solving the problem of uneven distribution of magnetic powder sprayed on different positions of metal material 10.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment, Figure 1 and Figure 2As shown, an anti-scattering mechanism 4 is arranged above the clamping arm 309, and the anti-scattering mechanism 4 includes a fixed baffle 401 and an electromagnetic sheet 402. The lower end of the fixed baffle 401 is fixedly connected to the upper surface of the clamping arm 309, and a plurality of electromagnetic sheets 402 are arranged on the inner side of the fixed baffle 401. The electromagnetic sheets 402 have the same working principle as the electromagnet ring 701. A material limiting mechanism 7 is arranged in the middle of the clamping arm 309, and the material limiting mechanism 7 includes an electromagnet ring 701, a damping telescopic rod 702, a limiting spring 703 and a fixed ring 704. The electromagnet ring 701 is arranged on the inner side of the clamping arm 309, and the outer side of the electromagnet ring 701 is fixedly connected to the damping telescopic rod 70 2, the middle part of the damping telescopic rod 702 passes through the clamping arm 309, and the fixed end of the damping telescopic rod 702 is fixedly connected to the inner side of the fixing ring 704, and the fixing ring 704 is fixedly connected to the outer side of the clamping arm 309. A limit spring 703 is sleeved on the outer side of the damping telescopic rod 702, and the two ends of the limit spring 703 are respectively attached to the inner side of the fixing ring 704 and the outer side of the electromagnet ring 701. When the metal material 10 is fixed inside the two clamping arms 309 by the material limiting mechanism 7, a magnetic field is generated by the coil in the electromagnet ring 701. Due to the magnetic field generated by the electromagnet ring 701, the metal material 10 will be magnetized. The metal material 10 is magnetized. After that, it will absorb magnetic powder. If there are defects on the surface of the metal material 10, the magnetic powder will gather at the defect of the workpiece and the magnetic powder area at other positions of the metal material 10 will have an obvious amplitude change, so that it is convenient for users to judge whether the metal material 10 has defects. The metal material 10 is arranged between the two electromagnet rings 701, and the inner side of the electromagnet ring 701 is provided with a groove for inserting the metal material 10 into the electromagnet ring 701. One side of the upper surface of the magnetic powder spraying station 1 is rotatably connected with a rotating arm 8, and the end of the rotating arm 8 away from the magnetic powder spraying station 1 is fixedly connected with a magnetic powder box 2, and the lower surface of the magnetic powder box 2 is fixedly connected with a powder discharge nozzle 9, and one side of the magnetic powder box 2 is provided with Sealed door. When the magnetic powder is insufficient, the sealed door can be opened to add magnetic powder into the magnetic powder box 2. A magnetic pump is arranged inside the magnetic powder box 2, and the powder discharge nozzle 9 is connected to the output end of the magnetic pump in the magnetic powder box 2. An inlet groove 6 is provided in the middle of the magnetic powder spraying platform 1, and a magnetic powder storage box 5 is provided below the inlet groove 6. The magnetic powder storage box 5 is arranged on the lower surface of the magnetic powder spraying platform 1. After the magnetic powder detection of the metal material 10, the electromagnet ring 701 is powered off, and the metal material 10 is waited for to be demagnetized. The magnetic powder adsorbed on the outside of the metal material 10 falls into the inlet groove 6 due to gravity, and falls into the magnetic powder storage box 5 through the inlet groove 6, thereby achieving the collection effect after the magnetic powder detection.

[0032] During specific use, the utility model is a magnetic powder spraying device for magnetic powder detection. When the magnetic powder is sprayed on the surface of a metal material 10 through a powder discharge nozzle 9 via a magnetic pump, as the amount of magnetic powder on the surface of the metal material 10 increases, some magnetic powder may not be adsorbed on the surface of the metal material 10. The scattered magnetic powder is blocked by a fixed baffle 401 and adsorbed on the surfaces of multiple electromagnetic sheets 402 on the inner side of the fixed baffle 401, so as to prevent the scattered magnetic powder from floating on the outside of the magnetic powder spraying platform 1.

[0033] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

Claims

1. A magnetic powder spraying device for magnetic powder testing, comprising a magnetic powder spraying station (1), characterized in that: The magnetic powder spraying platform (1) is provided with a magnetic powder uniform dispersion adjustment mechanism (3) at the front side, and the magnetic powder uniform dispersion adjustment mechanism (3) comprises an outer support arm (301), a rotating lead screw (302), an adjustment slider (304), a sliding arm (305), a limit plate (306) and a clamping arm (309). The outer support arm (301) is fixedly connected to the front side of the magnetic powder spraying platform (1). The outer support arm (301) is provided with a rotating lead screw (302) at the front side, and the rotating lead screw (302) is rotatably connected to the outer support arm (301). The left and right sides of the rotating lead screw (302) are both threadedly connected with the adjustment sliders (304). The upper surfaces of the two adjustment sliders (304) are both fixedly connected with the sliding arms (305), and the upper surfaces of the two sliding arms (305) are both slidably connected with the clamping arms (309). , one end of the clamping arm (309) away from the adjusting slider (304) is slidably connected to the upper surface of the magnetic powder spraying platform (1), a motor (303) is arranged on the outer side of the outer support arm (301), the output end of the motor (303) is transmission-connected to the rotating screw (302), a limiting screw (307) is arranged through the middle of the sliding arm (305), and the sliding arm (305) is threadedly connected to the limiting screw (307), one end of the limiting screw (307) away from the sliding arm (305) is rotationally connected to the inner side of the limiting plate (306), the lower end of the limiting plate (306) is fixedly connected to the upper surface of the sliding arm (305), the outer side of the limiting plate (306) is rotationally connected to a rotating ring (308), and the rotating ring (308) is transmission-connected to the limiting screw (307); An anti-scattering mechanism (4) is arranged above the clamping arm (309), and the anti-scattering mechanism (4) comprises a fixed baffle (401) and an electromagnetic sheet (402), the lower end of the fixed baffle (401) is fixedly connected to the upper surface of the clamping arm (309), and a plurality of electromagnetic sheets (402) are arranged inside the fixed baffle (401).

2. The magnetic powder spraying device for magnetic powder detection according to claim 1, characterized in that: A material limiting mechanism (7) is arranged in the middle of the clamping arm (309), and the material limiting mechanism (7) comprises an electromagnet ring (701), a damping telescopic rod (702), a limiting spring (703) and a fixing ring (704), and the electromagnet ring (701) is arranged on the inner side of the clamping arm (309).

3. The magnetic powder spraying device for magnetic powder detection according to claim 2, characterized in that: The outer side of the electromagnet ring (701) is fixedly connected to the free end of the damping telescopic rod (702), the middle part of the damping telescopic rod (702) passes through the clamping arm (309), and the fixed end of the damping telescopic rod (702) is fixedly connected to the inner side of the fixing ring (704), and the fixing ring (704) is fixedly connected to the outer side of the clamping arm (309).

4. The magnetic powder spraying device for magnetic powder detection according to claim 2, characterized in that: A limit spring (703) is sleeved on the outer side of the damping telescopic rod (702), and two ends of the limit spring (703) are respectively attached to the inner side of the fixing ring (704) and the outer side of the electromagnet ring (701).

5. The magnetic powder spraying device for magnetic powder detection according to claim 2, characterized in that: A metal material (10) is arranged between the two electromagnet rings (701).

6. The magnetic powder spraying device for magnetic powder detection according to claim 1, characterized in that: A rotating arm (8) is rotatably connected to one side of the upper surface of the magnetic powder spraying platform (1); an end of the rotating arm (8) away from the magnetic powder spraying platform (1) is fixedly connected to a magnetic powder box (2); a powder discharge nozzle (9) is fixedly connected to the lower surface of the magnetic powder box (2); a magnetic pump is arranged inside the magnetic powder box (2), and the powder discharge nozzle (9) is connected to an output end of the magnetic pump in the magnetic powder box (2).

7. The magnetic powder spraying device for magnetic powder detection according to claim 1, characterized in that: An introduction slot (6) is provided in the middle of the magnetic powder spraying platform (1), a magnetic powder storage box (5) is provided below the introduction slot (6), and the magnetic powder storage box (5) is provided on the lower surface of the magnetic powder spraying platform (1).

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