A magnetic particle flaw detection device for aircraft parts

Abstract

The present invention discloses a magnetic particle flaw detection device for aircraft parts, and the present invention relates to the technical field of magnetic particle flaw detection equipment. Specifically, it comprises: a base, a flaw detection spraying device for spraying magnetic powder on parts is arranged above the base; a slide cylinder for cooperating with suction is arranged above the base, one end of the slide cylinder is connected to two cleaning boxes, the two cleaning boxes are distributed in a V shape, and the slide cylinder drives the cleaning boxes to rotate around the outside of the parts; a through groove is provided on the side where the two cleaning boxes are close to each other, and a cotton roller for cleaning the outer wall of the parts is arranged inside the through groove. The magnetic particle flaw detection device for aircraft parts can achieve the effects of flaw detection and automatic impurity cleaning by arranging structures such as a flaw detection spraying device, a cotton roller and a suction gap. At the same time, the suction gap is intermittently closed to enhance the suction inside the cleaning box, avoid impurities remaining on the cotton roller, and improve the use efficiency of the magnetic particle flaw detection device.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic particle flaw detection equipment, in particular to a magnetic particle flaw detection equipment for aircraft parts. Background Art

[0002] Magnetic particle inspection is a commonly used non-destructive testing method. It utilizes the difference in magnetic permeability between the surface and near-surface defects (such as cracks, slag inclusions, hairline, etc.) of steel products and the magnetic permeability of steel. After magnetization, the magnetic field at the discontinuities of these materials will be distorted, resulting in a leakage magnetic field on the surface of the workpiece where some magnetic flux leaks, thereby attracting magnetic powder to form magnetic powder accumulation magnetic marks at the defects. Under appropriate lighting conditions, the defect position and shape are revealed. By observing and interpreting the accumulation of these magnetic powders, magnetic particle inspection is achieved. Magnetic particle inspection equipment is needed in the processing of aircraft parts.

[0003] Some aircraft parts are placed in the workshop for a long time, and dust and other impurities are easily attached to their outer surfaces. In order to prevent the impurities from affecting the magnetic particle flaw detection, the outer surface of the parts needs to be cleaned before the flaw detection. The magnetic particle flaw detection equipment in the prior art has a relatively single function and can usually only perform magnetic particle flaw detection on parts. The operator is required to use additional tools to clean the parts, which increases the operator's workload. Especially for some cylindrical aircraft parts, the cleaning is cumbersome, which affects the efficiency of flaw detection. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a magnetic particle flaw detection device for aircraft parts, which specifically comprises: a base, above which is provided a flaw detection spraying device for spraying magnetic powder on the parts;

[0005] A slide cylinder for cooperating with suction is arranged above the base, one end of the slide cylinder is connected to two cleaning boxes, the two cleaning boxes are distributed in a V shape, and the slide cylinder drives the cleaning boxes to rotate around the outside of the component;

[0006] A through groove is provided on the side of the two cleaning boxes close to each other, and a cotton roller for cleaning the outer wall of the parts is arranged inside the through groove, and a suction gap is formed between the cotton roller and the inner wall of the through groove;

[0007] An inner groove is provided on the inner wall of the suction gap, a magnetic plate is slidably arranged inside the inner groove, a magnet is fixedly embedded inside the cotton roller, and the magnetic plate and the magnet are attracted to each other. When the magnet corresponds to the magnetic plate, the magnetic plate moves toward the cotton roller and closes the suction gap, the suction force inside the cleaning box is enhanced, and the residual impurities outside the cotton roller are sucked away. When the magnet and the magnetic plate are offset, the suction gap is opened.

[0008] Preferably, the through grooves are provided in plurality and the plurality of through grooves are evenly distributed.

[0009] Preferably, a through hole is provided on the cotton roller, and a rotating shaft is fixedly connected to the inside of the through hole. The rotating shaft is concentrically arranged with the cotton roller, and the rotating shaft is rotatably connected to the inner wall of the cleaning box. One end of the rotating shaft located outside the cleaning box is fixedly connected to the second gear, and two adjacent second gears on the same cleaning box are connected by a chain transmission. A second motor is fixedly connected to the outer wall of the cleaning box, and the corresponding rotating shaft is fixedly connected to the driving shaft of the second motor.

[0010] Preferably, one end of the magnetic plate away from the cotton roller is fixedly connected to a first spring, and one end of the first spring away from the magnetic plate is fixedly connected to the inner wall of the inner groove.

[0011] Preferably, a fixed sleeve is provided above the base, a rotating sleeve is rotatably provided on the fixed sleeve, the rotating sleeve is communicated with the fixed sleeve, a square groove is provided on the inner wall of the rotating sleeve, a square tube is fixedly connected to the inside of the square groove, the square tube is communicated with the rotating sleeve, the sliding tube is slidably provided inside the square tube, and the sliding tube passes through one end of the square tube away from the rotating sleeve.

[0012] Preferably, a second spring is provided inside the square tube, one end of the second spring is fixedly connected to the slide tube, and the other end of the second spring is fixedly connected to the inner wall of the square tube, and the return force of the second spring makes the cotton roller fit tightly to the outer wall of the component.

[0013] Preferably, a support plate is fixedly connected to the outer wall of the fixed sleeve, a first motor is fixedly connected to the side of the support plate close to the rotating sleeve, a first gear is fixedly connected to the driving shaft of the first motor, a gear ring is fixedly connected to the outer wall of the rotating sleeve, the first gear is meshingly connected to the gear ring, the first motor drives the first gear to rotate, since the first gear is meshingly connected to the gear ring, the gear ring drives the rotating sleeve to rotate, and the rotating sleeve can drive the two cleaning boxes to rotate around the outside of the component through the square cylinder and the sliding cylinder.

[0014] Preferably, both ends of the upper surface of the base are fixedly connected to a chassis, the flaw detection spraying device is fixedly connected between the tops of the two chassis, a fan is fixedly connected to one of the chassis, and the fan is connected and cooperated with the fixed sleeve.

[0015] Preferably, a guide rod is fixedly connected between the two chassis, a threaded rod is rotatably connected between the two chassis, a cross plate is fixedly connected to the outer ring of the rotating sleeve, a round hole cooperating with the guide rod is opened on the cross plate, a threaded hole cooperating with the threaded rod is opened on the cross plate, and a clamping part for fixing parts is arranged between the two chassis.

[0016] Preferably, the number of the magnets is two, and the two magnets are symmetrically distributed about the axis of the cotton roller.

[0017] The present invention provides a magnetic particle flaw detection device for aircraft parts. It has the following beneficial effects:

[0018] 1. The magnetic particle flaw detection equipment for aircraft parts can achieve the effects of flaw detection and automatic impurity cleaning by setting structures such as flaw detection spraying device, cotton roller and suction gap. At the same time, the suction gap is intermittently closed to enhance the suction force inside the cleaning box, avoid impurities remaining on the cotton roller, and improve the use efficiency of the magnetic particle flaw detection equipment.

[0019] 2. The magnetic particle flaw detection equipment for aircraft parts is equipped with structures such as cotton rollers and slide cylinders. The cotton rollers are fitted on the outer wall of the parts for rotation and cleaning, and impurities can be sucked through the suction gap. Since the suction gap is close to the cotton roller, the timeliness of suction is guaranteed to avoid the scattering of impurities.

[0020] 3. The magnetic particle inspection equipment for aircraft parts is equipped with structures such as magnets and magnetic plates. When the suction gap is closed, the suction force inside the slide tube, square tube and other structures is also enhanced to avoid blockage due to residual impurities and ensure the stability of subsequent suction.

[0021] 4. The magnetic particle flaw detection equipment for aircraft parts is provided with a fixed sleeve and a rotating sleeve, and the cleaning box can be connected with the fixed sleeve in the rotating state. Compared with the method of providing an external pipeline in the prior art, the operation is more flexible and there will be no pipeline entanglement.

[0022] 5. The magnetic particle flaw detection equipment for aircraft parts has two cleaning boxes distributed in a V shape, which can be applied to circular tubular parts with different outer diameters, thereby improving the practicality of the magnetic particle flaw detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the magnetic particle flaw detection equipment for aircraft parts of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 3 It is a schematic diagram of the structure of the slide cylinder and the cleaning box of the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 It is a schematic diagram of the structure of the rotating sleeve and the cleaning box of the present invention;

[0028] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at C in the middle;

[0029] Figure 7 This is a schematic diagram of the cleaning box and cotton roller structure of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point D in the middle.

[0031] Fig. 9 It is a schematic diagram of the structure of the second motor and the cleaning box of the present invention.

[0032] In the figure: 1. base; 2. chassis; 3. flaw detection spraying device; 4. clamping part; 5. fixing sleeve; 6. rotating sleeve; 7. square groove; 8. square cylinder; 9. sliding cylinder; 10. cleaning box; 11. through groove; 12. rotating shaft; 13. suction gap; 14. inner groove; 15. magnetic plate; 16. first spring; 17. magnet; 18. cotton roller; 19. guide rod; 20. second spring; 21. threaded rod; 22. first gear; 23. gear ring; 24. support plate; 25. first motor; 26. second gear; 27. chain; 28. second motor; 29. ​​fan; 30. horizontal plate. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present 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.

[0034] like Figure 1-Figure 9 As shown, the present invention provides a technical solution: specifically comprising: a base 1, a flaw detection spray device 3 for spraying magnetic powder on parts is arranged above the base 1, both ends of the upper surface of the base 1 are fixedly connected to the chassis 2, and the flaw detection spray device 3 is fixedly connected between the tops of the two chassis 2.

[0035] The flaw detection spray device 3 includes a spray head, a magnetic powder box and other structures, and is externally connected to the factory's magnetic powder delivery pipeline. It can spray magnetic powder on parts to perform magnetic powder flaw detection and realize the function of flaw detection. The flaw detection spray device 3 is an existing common technology and will not be described in detail here.

[0036] A clamping member 4 for fixing parts is arranged between the two chassis 2. The clamping member 4 includes a structure such as a jacket, which can clamp and fix the parts from both ends. A motor (not shown in the figure) is arranged inside the chassis 2. The motor drives the parts to rotate through the clamping member 4, so as to facilitate comprehensive magnetic powder spraying of the parts.

[0037] Considering that some parts are placed in the workshop for a long time, dust and other impurities are easily attached to their outer surfaces. Before the flaw detection process, the outer surface of the parts needs to be cleaned to prevent impurities from affecting the magnetic particle flaw detection. Especially for some cylindrical aircraft parts, cleaning is cumbersome. In order to improve the efficiency of magnetic particle flaw detection, a slide 9 for cooperating with suction is provided above the base 1. One end of the slide 9 is connected to two cleaning boxes 10. The two cleaning boxes 10 are distributed in a V shape. The slide 9 drives the cleaning box 10 to rotate around the outside of the parts. Since the two cleaning boxes 10 are distributed in a V shape, they can be applied to cylindrical parts with different outer diameters, which improves the practicality of the magnetic particle flaw detection equipment. The magnetic particle flaw detection equipment is particularly suitable for cylindrical aircraft parts.

[0038] The two cleaning boxes 10 are provided with through slots 11 on the sides close to each other. The through slots 11 are provided in multiple numbers and are evenly distributed. A cotton roller 18 for cleaning the outer wall of the parts is provided inside the through slots 11. The cotton roller 18 is provided with a through hole. A rotating shaft 12 is fixedly connected inside the through hole. The rotating shaft 12 is concentrically arranged with the cotton roller 18 and is rotatably connected to the inner wall of the cleaning box 10.

[0039] During actual use, the cotton roller 18 is attached to the outer wall of the component, and the impurities on the outer surface of the component are cleaned during the rotation process.

[0040] In order to realize the rotation of the cotton roller 18, a second gear 26 is fixedly connected to one end of the rotating shaft 12 located outside the cleaning box 10, and two adjacent second gears 26 on the same cleaning box 10 are connected by a chain 27. The second motor 28 is fixedly connected to the outer wall of the cleaning box 10, and the corresponding rotating shaft 12 is fixedly connected to the driving shaft of the second motor 28. Specifically, the second motor 28 drives the rotating shaft 12 fixedly connected to its driving shaft to rotate, and with the cooperation of the chain 27, multiple rotating shafts 12 are rotated synchronously, thereby rotating the cotton roller 18.

[0041] A fixed sleeve 5 is arranged above the base 1, a rotating sleeve 6 is rotatably arranged on the fixed sleeve 5, the rotating sleeve 6 is connected with the fixed sleeve 5, a square groove 7 is opened on the inner wall of the rotating sleeve 6, a square tube 8 is fixedly connected inside the square groove 7, and the square tube 8 is connected with the rotating sleeve 6. Figure 7 The side wall of the square tube 8 is provided with air holes, and the square tube 8 is connected with the rotating sleeve 6 through the air holes.

[0042] The slide cylinder 9 is slidably arranged inside the square cylinder 8, and the slide cylinder 9 passes through the end of the square cylinder 8 away from the rotating sleeve 6. During cleaning, the parts are fixed, and the rotating sleeve 6 rotates on the fixed sleeve 5. The rotating sleeve 6 can drive the two cleaning boxes 10 to rotate around the outside of the parts through the square cylinder 8 and the slide cylinder 9, and the cotton roller 18 is attached to the outer wall of the parts for rotating cleaning, thereby realizing the function of cleaning impurities; and in this process, the fixed sleeve 5 and the rotating sleeve 6 are always kept in a connected state, so that the cleaning box 10 is connected to the fixed sleeve 5 through the slide cylinder 9, the square cylinder 8, and the rotating sleeve 6. Compared with the method of setting an external pipeline in the prior art, the operation is more flexible, and there will be no pipeline entanglement and the like.

[0043] During flaw detection, the square tube 8, the rotating sleeve 6 and other structures are close to one of the chassis 2, which does not affect the spraying of magnetic powder on the parts.

[0044] In order to ensure the fit between the cotton roller 18 and the parts, a second spring 20 is provided inside the square tube 8, one end of the second spring 20 is fixedly connected to the slide tube 9, and the other end of the second spring 20 is fixedly connected to the inner wall of the square tube 8. When the cotton roller 18 fits the outer wall of the part, the slide tube 9 will be retracted into the inside of the square tube 8 and squeeze the second spring 20 to shrink. The restoring elastic force of the second spring 20 makes the cotton roller 18 fit closely to the outer wall of the part, thereby improving the cleaning effect.

[0045] A support plate 24 is fixedly connected to the outer wall of the fixed sleeve 5, and a first motor 25 is fixedly connected to the side of the support plate 24 close to the rotating sleeve 6. A first gear 22 is fixedly connected to the driving shaft of the first motor 25, and a gear ring 23 is fixedly connected to the outer wall of the rotating sleeve 6. The first gear 22 is meshed with the gear ring 23. Specifically, the first motor 25 drives the first gear 22 to rotate, and since the first gear 22 is meshed with the gear ring 23, the gear ring 23 drives the rotating sleeve 6 to rotate, and the rotating sleeve 6 can drive the two cleaning boxes 10 to rotate around the outside of the parts through the square cylinder 8 and the slide cylinder 9.

[0046] In order to achieve the suction treatment of impurities, a suction gap 13 is formed between the cotton roller 18 and the inner wall of the through groove 11. After the cotton roller 18 rotates and cleans, the impurities can be sucked through the suction gap 13, and the suction gap 13 is close to the cotton roller 18 to ensure the timeliness of suction and avoid the impurities from flying. A fan 29 is fixedly connected to one of the chassis 2, and the fan 29 is connected and matched with the fixed sleeve 5. The fan 29 and the fixed sleeve 5 are connected through a telescopic hose. The fan 29 is externally connected to the factory's centralized air treatment pipeline, and the sucked impurities are transported to the factory's centralized air treatment pipeline.

[0047] During actual use, the first motor 25 drives the first gear 22 to rotate. Since the first gear 22 is meshed with the ring gear 23, the ring gear 23 drives the rotating sleeve 6 to rotate. The rotating sleeve 6 can drive the two cleaning boxes 10 to rotate around the outside of the component through the square cylinder 8 and the slide cylinder 9. With the cooperation of the second motor 28 and other structures, the cotton roller 18 is attached to the outer wall of the component for rotation and cleaning. During this process, the cleaning box 10 is always connected with the fixed sleeve 5 through the slide cylinder 9, the square cylinder 8, and the rotating sleeve 6. The fan 29 absorbs impurities in time through the fixed sleeve 5, the rotating sleeve 6, the square cylinder 8, the slide cylinder 9, the cleaning box 10 and the suction gap 13, thereby realizing the function of impurity suction.

[0048] Except for the position on one side of the suction gap 13 , the cotton roller 18 can fit with the inner walls of the other three sides of the through groove 11 to ensure the wind effect at the suction gap 13 .

[0049] Considering that when the cotton roller 18 is attached to the outer wall of the component for rotation cleaning, impurities are easily attached to the outside of the cotton roller 18. Although some impurities can be sucked away during the suction of the fan 29, they are easy to remain. In order to achieve the treatment of the residual impurities and avoid the residual impurities from causing wear to the components during the subsequent rotation cleaning process, an inner groove 14 is provided on the inner wall of the suction gap 13. A magnetic plate 15 is slidably provided inside the inner groove 14. The end of the magnetic plate 15 away from the cotton roller 18 is fixedly connected to the first spring 16, and the end of the first spring 16 away from the magnetic plate 15 is fixedly connected to the inner wall of the inner groove 14. A magnet 17 is fixedly embedded inside the cotton roller 18, and the magnetic plate 15 and the magnet 17 are attracted to cooperate.

[0050] The second motor 28 drives the rotating shaft 12 fixedly connected to the driving shaft to rotate, and with the cooperation of the chain 27, multiple rotating shafts 12 rotate synchronously, thereby causing the cotton roller 18 to rotate, and the cotton roller 18 drives the magnet 17 to rotate synchronously, referring to Figure 8 , the cotton roller 18 and the magnet 17 rotate counterclockwise. When the magnet 17 corresponds to the magnetic plate 15, the magnetic plate 15 and the magnet 17 are attracted to each other. Under the action of the attraction force, the magnetic plate 15 moves toward the cotton roller 18 and closes the suction gap 13. All suction gaps 13 are closed, and the suction force inside the cleaning box 10 is enhanced. The residual impurities on the outer wall of the cotton roller 18 located inside the cleaning box 10 are quickly sucked away, achieving the cleaning effect of the cotton roller 18. In this process, the cotton roller 18 can stop rotating temporarily. In addition, the suction force inside the structures such as the slide 9 and the square cylinder 8 is also enhanced to avoid blockage due to residual impurities and ensure the stability of subsequent suction.

[0051] Then the cotton roller 18 and the magnet 17 continue to rotate. When the magnet 17 is offset from the magnetic plate 15, the resetting elastic force of the first spring 16 causes the magnetic plate 15 to quickly reset, and the suction gap 13 opens to continue cleaning the external impurities.

[0052] The number of magnets 17 is two, and the two magnets 17 are symmetrically distributed about the axis of the cotton roller 18 , which can ensure that impurities remaining on all parts of the outer wall of the cotton roller 18 are sucked out.

[0053] As the cotton roller 18 continues to rotate, the suction gap 13 is intermittently closed, thereby enhancing the suction force inside the cleaning box 10, efficiently processing the residual impurities, and preventing the residual impurities from causing wear to the components during the subsequent rotation and cleaning process.

[0054] By arranging structures such as the flaw detection spray device 3, the cotton roller 18 and the suction gap 13, the effects of flaw detection and automatic impurity cleaning can be achieved. At the same time, the suction gap 13 is intermittently closed to avoid impurities remaining on the cotton roller 18, thereby improving the use efficiency of the magnetic particle flaw detection equipment.

[0055] In order to realize the movement of the rotating sleeve 6, the fixed sleeve 5 and other structures along the axial length direction of the parts, a guide rod 19 is fixedly connected between the two chassis 2, a threaded rod 21 is rotatably connected between the two chassis 2, a cross plate 30 is fixedly connected to the outer ring of the rotating sleeve 6, a round hole matching with the guide rod 19 is opened on the cross plate 30, a threaded hole matching with the threaded rod 21 is opened on the cross plate 30, and a motor (not shown in the figure) is arranged inside the chassis 2 for matching with the threaded rod 21. When the threaded rod 21 rotates, since the threaded hole matching with the threaded rod 21 is opened on the cross plate 30, and with the cooperation of the guide rod 19 and other structures, the cross plate 30 drives the rotating sleeve 6, the fixed sleeve 5 and other structures to move, so as to realize the comprehensive cleaning of the parts.

[0056] Working principle: The cotton roller 18 is attached to the outer wall of the component, and the second motor 28 is started. The second motor 28 drives the rotating shaft 12 fixedly connected to its driving shaft to rotate. With the cooperation of the chain 27, multiple rotating shafts 12 are rotated synchronously, so that the cotton roller 18 rotates, and the cotton roller 18 is attached to the outer wall of the component for rotation and cleaning. At the same time, the first motor 25 drives the first gear 22 to rotate. Since the first gear 22 is meshed and connected with the ring gear 23, the ring gear 23 drives the rotating sleeve 6 to rotate. The rotating sleeve 6 can drive the two cleaning boxes 10 to rotate around the outside of the component through the square tube 8 and the slide tube 9. In this process, the cleaning box 10 is always connected with the fixed sleeve 5 through the slide tube 9, the square tube 8, and the rotating sleeve 6. The fan 29 sucks away impurities in time through the fixed sleeve 5, the rotating sleeve 6, the square tube 8, the slide tube 9, the cleaning box 10 and the suction gap 13.

[0057] The cotton roller 18 drives the magnet 17 to rotate synchronously. When the magnet 17 corresponds to the magnetic plate 15, the magnetic plate 15 and the magnet 17 are attracted to each other. Under the action of the attraction force, the magnetic plate 15 moves toward the cotton roller 18 and closes the suction gap 13. All suction gaps 13 are closed, and the suction force inside the cleaning box 10 is enhanced. The residual impurities on the outer wall of the cotton roller 18 located inside the cleaning box 10 are quickly sucked away, achieving the cleaning effect of the cotton roller 18. In addition, the suction force inside the structures such as the slide tube 9 and the square tube 8 is also enhanced to avoid blockage due to residual impurities and ensure the stability of subsequent suction.

[0058] After the cleaning is completed, the square tube 8, the rotating sleeve 6 and other structures are close to one of the chassis 2, which does not affect the spraying of magnetic powder on the parts.

[0059] The flaw detection spraying device 3 sprays magnetic powder on the parts to perform magnetic particle flaw detection.

[0060] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A magnetic particle flaw detection device for aircraft parts, specifically comprising: The base (1) is characterized in that a flaw detection spraying device (3) for spraying magnetic powder on parts is arranged above the base (1); A slide cylinder (9) for cooperating with suction is arranged above the base (1); one end of the slide cylinder (9) is connected to two cleaning boxes (10); the two cleaning boxes (10) are arranged in a V shape; the slide cylinder (9) drives the cleaning boxes (10) to rotate around the outside of the component; A through groove (11) is provided on one side of the two cleaning boxes (10) close to each other, a cotton roller (18) for cleaning the outer wall of the parts is arranged inside the through groove (11), and a suction gap (13) is formed between the cotton roller (18) and the inner wall of the through groove (11); An inner groove (14) is provided on the inner wall of the suction gap (13), a magnetic plate (15) is slidably provided inside the inner groove (14), a magnet (17) is fixedly embedded inside the cotton roller (18), the magnetic plate (15) and the magnet (17) are attracted to each other, when the magnet (17) corresponds to the magnetic plate (15), the magnetic plate (15) moves toward the cotton roller (18) and closes the suction gap (13), the suction force inside the cleaning box (10) is enhanced, and the residual impurities outside the cotton roller (18) are sucked away, and when the magnet (17) and the magnetic plate (15) are offset, the suction gap (13) is opened; The cotton roller (18) is provided with a through hole, and a rotating shaft (12) is fixedly connected inside the through hole. The rotating shaft (12) and the cotton roller (18) are arranged concentrically, and the rotating shaft (12) is rotatably connected to the inner wall of the cleaning box (10). One end of the rotating shaft (12) located outside the cleaning box (10) is fixedly connected to a second gear (26). Two adjacent second gears (26) on the same cleaning box (10) are connected by a chain (27). The outer wall of the cleaning box (10) is fixedly connected to a second motor (28), and the corresponding rotating shaft (12) is fixedly connected to a drive shaft of the second motor (28); A fixed sleeve (5) is arranged above the base (1), a rotating sleeve (6) is rotatably arranged on the fixed sleeve (5), the rotating sleeve (6) is communicated with the fixed sleeve (5), a square groove (7) is opened on the inner wall of the rotating sleeve (6), a square cylinder (8) is fixedly connected inside the square groove (7), the square cylinder (8) is communicated with the rotating sleeve (6), the sliding cylinder (9) is slidably arranged inside the square cylinder (8), and the sliding cylinder (9) passes through one end of the square cylinder (8) away from the rotating sleeve (6).

2. The magnetic particle flaw detection equipment for aircraft parts according to claim 1, characterized in that: The through grooves (11) are arranged in a plurality, and the plurality of through grooves (11) are evenly distributed.

3. The magnetic particle flaw detection equipment for aircraft parts according to claim 1, characterized in that: One end of the magnetic plate (15) away from the cotton roller (18) is fixedly connected to a first spring (16); and one end of the first spring (16) away from the magnetic plate (15) is fixedly connected to the inner wall of the inner groove (14).

4. The magnetic particle flaw detection equipment for aircraft parts according to claim 1, characterized in that: A second spring (20) is arranged inside the square tube (8), one end of the second spring (20) is fixedly connected to the slide tube (9), and the other end of the second spring (20) is fixedly connected to the inner wall of the square tube (8).

5. The magnetic particle flaw detection equipment for aircraft parts according to claim 1, characterized in that: A support plate (24) is fixedly connected to the outer wall of the fixed sleeve (5); a first motor (25) is fixedly connected to a side of the support plate (24) close to the rotating sleeve (6); a first gear (22) is fixedly connected to the drive shaft of the first motor (25); a gear ring (23) is fixedly connected to the outer wall of the rotating sleeve (6); and the first gear (22) is meshingly connected to the gear ring (23).

6. The magnetic particle flaw detection equipment for aircraft parts according to claim 1, characterized in that: Both ends of the upper surface of the base (1) are fixedly connected to a chassis (2), the flaw detection spraying device (3) is fixedly connected between the tops of the two chassis (2), a fan (29) is fixedly connected to one of the chassis (2), and the fan (29) is in communication with the fixed sleeve (5).

7. The magnetic particle flaw detection equipment for aircraft parts according to claim 6, characterized in that: A guide rod (19) is fixedly connected between the two chassis (2), a threaded rod (21) is rotatably connected between the two chassis (2), a transverse plate (30) is fixedly connected to the outer ring of the rotating sleeve (6), a round hole is formed on the transverse plate (30) to match the guide rod (19), a threaded hole is formed on the transverse plate (30) to match the threaded rod (21), and a clamping member (4) for fixing parts is provided between the two chassis (2).

8. The magnetic particle flaw detection equipment for aircraft parts according to claim 1, characterized in that: The magnets (17) are arranged in two numbers, and the two magnets (17) are symmetrically distributed about the axis of the cotton roller (18).

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