Defect detection equipment and detection method for motor stator

Abstract

The invention belongs to the technical field of defect detection, and particularly relates to a defect detection device and method for a motor stator, and the device comprises a collection part, a mounting part, a control mechanism, an auxiliary mechanism, and a protection mechanism. The mounting part comprises a workbench, a control box and a supporting cylinder, the control box is arranged on the workbench, and the supporting cylinder is rotationally arranged on one side of the control box; the collecting part comprises a mounting cylinder, a collecting probe and a light supplementing lamp, the collecting probe is used for collecting internal defect image information of a motor stator of the water pump, and the collecting probe and the light supplementing lamp are arranged on the outer wall of the mounting cylinder, the axial end of the mounting cylinder and the outer wall of the supporting cylinder; the protection mechanism comprises an adapter ring, an arc-shaped plate and an elastic wiping layer, a cavity is formed in the adapter ring, and the adapter ring is rotationally mounted on the outer wall of the supporting cylinder; through the cooperation of the structure, the lens of the acquisition probe is wiped, after the inner wall of the stator of the water pump is cleaned, the surface of the acquisition probe is kept clean, the lens is protected, and the effect of checking the defect precision of the internal coating of the stator is kept.

Description

Technical Field

[0001] The present invention belongs to the technical field of defect detection, and specifically relates to a defect detection device and method for a motor stator. Background Art

[0002] In the maintenance and repair work of water pump equipment, the state of the internal insulation and corrosion-resistant coating of the motor stator of the water pump is directly related to the safety and performance of the equipment. Therefore, accurate detection of it is very crucial. The endoscope probe can directly collect the internal image information of the stator, and has the advantages of high visualization degree and fast detection efficiency, and has become the current mainstream detection method. Through the analysis of the collected images, technicians can intuitively judge whether there are defects such as cracks, wear, and corrosion in the stator, providing an important basis for the maintenance and replacement of the equipment.

[0003] However, the operating environment of the water pump is complex, and the inside of the stator of the water pump motor is usually attached with dirt such as oil stains, metal debris, and scale. During detection, in order to obtain clear images, it is necessary to blow and clean the dirt-covered area. However, during the blowing process, the splashing dirt is extremely likely to adhere to the surface of the lens of the endoscope probe, resulting in blurred images, shadows or light spots, seriously affecting the clarity and accuracy of image acquisition, and further interfering with the identification and judgment of defects, and even possibly causing misjudgment or missed judgment of defects.

[0004] Currently, for the treatment of dirt on the lens surface, the commonly used method is to directly wipe it with a wiping tool (such as a wiping cloth, sponge, etc.). When there are large dirt particles attached to the lens surface, these dirt will be squeezed between the wiping part and the lens during the wiping process, forming a rigid contact.

[0005] Since the surface of the endoscope probe lens is usually coated with a precision optical film layer and the material is relatively brittle, the frictional force generated by rigid extrusion is extremely likely to scratch the lens, resulting in a decline in the optical performance of the lens (such as a decrease in light transmittance and image distortion), and even causing the lens to be scrapped.

[0006] Therefore, the present invention provides a defect detection device and method for a motor stator. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0008] The technical solution adopted by the present invention to solve its technical problems is: A defect detection device for a motor stator according to the present invention includes a collection part, an installation part, a control mechanism, an auxiliary mechanism, and a protection mechanism;

[0009] The installation part includes a workbench, a control box, and a support cylinder. The control box is arranged on the workbench, and the support cylinder is rotatably arranged on one side of the control box;

[0010] The acquisition unit includes an installation cylinder, an acquisition probe, and a fill light. The acquisition probe is used to acquire image information of the coating defects inside the motor stator of the water pump. The acquisition probe and the fill light are both arranged on the outer wall of the installation cylinder. The axial end of the installation cylinder is connected to the outer wall of the support cylinder;

[0011] The protection mechanism includes an adapter ring, an arc-shaped plate, and an elastic wiping layer. A cavity is provided inside the adapter ring, and it is rotatably installed on the outer wall of the support cylinder;

[0012] The wiping layer is connected to the adapter ring through the arc-shaped plate. The outer wall of the wiping layer fits against the outer wall of the installation cylinder, and the side wall of the wiping layer is inclined;

[0013] The control mechanism is used to control the rotation of the adapter ring;

[0014] The protection mechanism is used to clean the inner wall of the motor stator of the water pump.

[0015] Preferably, an installation box is fixedly installed on the inner wall of the control box. A driving motor is fixedly installed on the outer wall of the installation box. The support cylinder extends to the inner wall of the installation box, and the driving motor controls the rotation of the support cylinder through a transmission member;

[0016] An air delivery pipe is provided on the inner wall of the support cylinder. A rotating pipe is installed on the outer wall of the air delivery pipe through a three-way valve. The rotating pipe is used to deliver gas into the adapter ring.

[0017] Preferably, the control mechanism includes a control motor, a gear ring, and a sealing ring;

[0018] The control motor is fixedly installed on the outer wall of the support cylinder. The gear ring is fixedly installed at the axial end of the adapter ring. A driving wheel meshing with the gear ring is fixedly installed at the output end of the control motor;

[0019] The sealing ring is rotatably arranged at the axial end of the adapter ring. One end of the rotating pipe is fixedly connected to the axial end of the sealing ring.

[0020] Preferably, a conical groove is provided on the side of the wiping layer close to the arc-shaped plate. A plurality of conical grooves are evenly provided along the outer wall of the wiping layer;

[0021] A communication groove is provided inside the arc-shaped plate. The position of the communication groove corresponds to that of the conical groove. The adapter ring delivers gas into the conical groove through the communication groove.

[0022] Preferably, a pressing ball is fixedly installed on the outer wall of the sealing ring. A plurality of pressing balls are evenly arranged in a ring along the axis of the sealing ring;

[0023] An enclosing ring for closing the communication groove is elastically installed on the inner wall of the adapter ring. A force-applying ball is fixedly installed on the outer wall of the enclosing ring.

[0024] Preferably, the protection mechanism includes an adapter cylinder, a sliding plug, and an extension pipe;

[0025] The adapter tube is fixedly installed on the outer wall of the mounting cylinder, the sliding plug is elastically installed on the inner wall of the adapter tube, and the outer wall of the sliding plug is in sliding fit with the inner wall of the adapter tube;

[0026] The extension tube is fixedly installed on the upper end face of the sliding plug, and its inner cavity is communicated with the inner cavity of the adapter tube. The inner cavity of the adapter tube is connected to the output end of a three-way valve arranged outside the air delivery pipe through a conduit.

[0027] Preferably, the upper end of the extension tube extends to the outer wall of the adapter tube and is fixedly installed with a mounting cover. The upper end of the mounting cover is fixedly installed with bristles, and the inner wall of the mounting cover is fixedly installed with a limiting rod;

[0028] An elastic tube is fixedly installed on the outer wall of the extension tube, and a counterweight ring is fixedly installed at one end of the elastic tube away from the extension tube.

[0029] Preferably, the bottom of the mounting cylinder has an arc-shaped notch, and a scraping plate is slidably arranged at the arc-shaped notch. The scraping plate is inclined;

[0030] The upper end of the scraping plate extends into the mounting cylinder and is fixedly installed with a support plate. The upper end of the support plate is connected to the inner wall of the mounting cylinder through an elastic member.

[0031] Preferably, a storage tank is detachably installed on the inner wall of the mounting cylinder. The bottom surface of the storage tank is slidably installed with a rigid tube through an elastic member, and a liquid drainage plate is fixedly installed at the bottom of the rigid tube;

[0032] A groove for inserting the rigid tube is formed on the outer wall of the support plate;

[0033] A support frame is fixedly installed on the inner wall of the storage tank, a flow blocking ring is fixedly installed on the inner wall of the rigid tube, a conical plug for closing the flow blocking ring is fixedly installed on the bottom surface of the support frame, and a guiding wire is fixedly installed at the bottom of the conical plug.

[0034] A method for defect detection of a motor stator, which uses the above-mentioned defect detection equipment for a motor stator, includes the following steps:

[0035] A1. First, debug the equipment to detect the clarity of the image information collected and fed back by the acquisition probe;

[0036] A2. Then control the movement of the motor stator of the water pump to be inspected until the mounting cylinder is located inside the stator, and then turn on the supplementary light;

[0037] A3. When the acquisition probe collects the defect image information of the inner wall of the motor stator of the water pump, simultaneously control the rotation of the mounting cylinder to adjust the acquisition area;

[0038] A4. The acquisition probe feeds back the collected image information to the display port. When a suspicious image is displayed on the display port, exhaust and clean through the extension tube.

[0039] The beneficial effects of the present invention are as follows:

[0040] 1. In the present invention, by providing an adapter ring, an arc-shaped plate and an elastic wiping layer, the wiping layer is connected to the adapter ring through the arc-shaped plate, and the outer wall of the wiping layer is attached to the outer wall of the mounting cylinder. By rotating the adapter ring to drive the arc-shaped plate to rotate, the wiping layer rotates, which is used to wipe the lens of the acquisition probe. After cleaning the inner wall of the motor stator of the cleaning water pump, the surface of the acquisition probe is kept clean, preventing splashed dirt from adhering to the lens, resulting in blurred imaging, light spots or shadows, which affect the observation and judgment of details such as cracks, wear, and corrosion points on the inner wall of the stator. The side wall of the wiping layer is inclined;

[0041] 2. In the present invention, the side wall of the wiping layer is inclined. During wiping, as the arc-shaped plate rotates, the inclined side wall of the wiping layer first contacts the lens. By using the inclined corner of the wiping layer to push the larger dirt attached to the surface of the lens, as the wiping layer rotates, it first pushes away the larger particulate dirt on the lens and then performs the wiping operation, preventing the larger dirt from scratching the lens, achieving the effect of protecting the lens while maintaining the cleaning effect. By protecting the lens, the effect of maintaining the inspection defect accuracy is achieved;

[0042] 3. In the present invention, a communication groove is opened inside the arc-shaped plate, and the position of the communication groove corresponds to the conical groove. The adapter ring conveys gas into the conical groove through the communication groove. When the adapter ring exhausts air towards the communication groove, the gas flushes the wiping layer after passing through the conical groove, thereby realizing the cleaning of the wiping layer and improving the cleanliness of the wiping layer when wiping the lens again. The setting of the conical groove not only facilitates the fitting of the wiping layer to the lens, but also reduces the resistance of gas permeation when flushing the wiping layer, thereby improving the effect of flushing the wiping layer. With mutual promotion, the quality of the wiping layer wiping the lens is improved, and thus the quality of image information acquisition is maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0045] Figure 2 is a schematic installation diagram of the support cylinder in the present invention;

[0046] Figure 3 is a schematic installation diagram of the mounting cylinder in the present invention;

[0047] Figure 4 is a schematic installation diagram of the adapter ring in the present invention;

[0048] Figure 5 is a schematic internal structure diagram of the adapter cylinder in the present invention;

[0049] Figure 6 It is a schematic diagram of the internal structure of the installation cylinder in the present invention;

[0050] Figure 7 It is a schematic diagram of the installation of the rigid tube in the present invention;

[0051] Figure 8 It is a schematic diagram of the installation of the guiding wire in the present invention;

[0052] Figure 9 It is a schematic diagram of the installation of the sealing ring in the present invention;

[0053] Figure 10 It is a schematic diagram of the structure of the sealing ring in the present invention;

[0054] Figure 11 It is Figure 10 an enlarged view of the structure at position A in;

[0055] Figure 12 It is a flowchart of the defect detection method in the present invention.

[0056] In the figure: 1, workbench; 2, installation cylinder; 3, inspection table; 4, control box; 5, support cylinder; 6, adapter tube; 7, acquisition probe; 8, supplementary light; 9, adapter cylinder; 10, control motor; 11, installation box; 12, drive motor; 13, air delivery pipe; 14, installation cover; 15, brush hair; 16, adapter ring; 17, gear ring; 18, arc plate; 19, wiping layer; 20, limit rod; 21, counterweight ring; 22, elastic tube; 23, extension tube; 24, sliding plug; 25, storage tank; 26, liquid discharge plate; 27, support plate; 28, rigid tube; 29, support frame; 30, guiding wire; 31, conical plug; 32, flow blocking ring; 33, conical groove; 34, communication groove; 35, sealing ring; 36, sealing ring; 37, pressing ball; 38, force-applying ball; 39, scraping plate. Specific embodiments

[0057] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0058] As Figures 1 to 11 shown, a defect detection device for a motor stator according to the present invention includes an acquisition part, an installation part, a control mechanism, an auxiliary mechanism and a protection mechanism.

[0059] The installation part includes a workbench 1, a control box 4 and a support cylinder 5. The control box 4 is arranged on the workbench 1. Among them, an air pump is built in the control box 4, and a computer with a display is arranged outside for displaying image information and issuing execution instructions at the same time. The support cylinder 5 is rotatably arranged on one side of the control box 4 to provide support for the support cylinder 5.

[0060] Among them, a sample delivery table 3 driven by an electric slide rail is provided at the upper end of the workbench 1. A fixture for clamping the motor stator of the water pump is provided on the sample delivery table 3. Before inspection, first fix the motor stator of the water pump to the sample delivery table 3. It should be noted that after the motor stator of the water pump is fixed, the axis of the motor stator of the water pump needs to coincide with the axis of the support cylinder 5.

[0061] The acquisition part includes an installation cylinder 2, an acquisition probe 7 and a supplementary light 8. The acquisition probe 7 is used to acquire image information of the coating defects inside the motor stator of the water pump. Among them, the acquisition probe 7 is an endoscope high-definition probe that can be purchased on the market, with an internal information interaction chip. After being connected to a computer, the image information acquired by the acquisition probe 7 is displayed on the computer monitor. The staff can penetrate the monitor to know the situation of the coating defects (such as scratches, cracks, etc.) inside the motor stator of the water pump.

[0062] Both the acquisition probe 7 and the supplementary light 8 are arranged on the outer wall of the installation cylinder 2. The axial end of the installation cylinder 2 is connected to the outer wall of the support cylinder 5. Then, the sample delivery table 3 controls the movement of the motor stator of the water pump until the installation cylinder 2 is located inside the motor stator of the water pump, so as to start acquiring image information of the coating inside the motor stator of the water pump, achieving the effect of detecting coating defects inside the motor stator of the water pump.

[0063] The protection mechanism is used to clean the inner wall of the motor stator of the water pump. When there is dirt inside the motor stator of the water pump, it will block the coating on the inner wall of the motor stator of the water pump. In order to acquire image information under the dirt and avoid missed detection, at this time, it is necessary to clean the dirt through the protection mechanism to expose the inner wall of the motor stator of the water pump under the dirt.

[0064] The protection mechanism includes an adapter ring 16, an arc-shaped plate 18 and an elastic wiping layer 19. A cavity is provided inside the adapter ring 16, and it is rotatably installed on the outer wall of the support cylinder 5. Exhaust holes are provided on the outer wall of the adapter ring 16. After injecting air into the adapter ring 16, the air is exhausted through the exhaust holes.

[0065] The wiping layer 19 is connected to the adapter ring 16 through the arc-shaped plate 18. The outer wall of the wiping layer 19 is attached to the outer wall of the installation cylinder 2. (In this embodiment, the material and composition of the wiping layer 19 are selected as follows: the outside is a suede glasses cloth, and an elastic sponge is sewn inside.) By rotating the adapter ring 16 to drive the arc-shaped plate 18 to rotate, the wiping layer 19 is rotated to wipe the lens of the acquisition probe 7. Thus, after cleaning the inner wall of the motor stator of the water pump, the surface of the acquisition probe 7 is kept clean, preventing splashed dirt from adhering to the lens, resulting in blurred imaging, light spots or shadows, which affect the observation and judgment of details such as cracks, wear, and corrosion points on the inner wall coating of the stator. At the same time, it ensures uniform light transmission or reflection, making the acquired image have clear edges and true colors, facilitating accurate measurement of defect sizes and judgment of defect types such as linear cracks and non-metallic attachments through image analysis software.

[0066] The side wall of the wiping layer 19 is inclined. The two sides of the wiping layer 19 are supported by hemming and sewing with suede glasses cloth. During wiping, as the arc-shaped plate 18 rotates, the inclined side wall of the wiping layer 19 first contacts the lens, and the larger dirt attached to the lens surface is pushed by the corners of the inclined wiping layer 19. As the wiping layer 19 rotates, it first pushes away the larger particulate dirt on the lens and then performs the wiping operation, preventing the larger dirt from scratching the lens, achieving the cleaning effect while protecting the lens, and maintaining the inspection defect accuracy effect by protecting the lens.

[0067] The control mechanism is used to control the rotation of the adapter ring 16 and serves as the power source for the wiping layer 19 to wipe the lens.

[0068] The inner wall of the control box 4 is fixedly installed with an installation box 11. The outer wall of the installation box 11 is fixedly installed with a driving motor 12. The installation box 11 provides installation and support for the driving motor 12, and the rotation of the driving motor 12 is controlled by a computer.

[0069] The support cylinder 5 extends to the inner wall of the installation box 11, and the driving motor 12 controls the rotation of the support cylinder 5 through a transmission member. A mutually meshing worm gear and worm are rotatably installed inside the installation box 11. The output shaft of the driving motor 12 is fixedly connected to the worm. The support cylinder 5 passes through the worm from the axial end of the worm gear and is fixedly connected to the worm gear. The driving motor 12 controls the rotation of the support cylinder 5 through the cooperation of the worm gear and worm, thereby driving the installation cylinder 2 to rotate, driving the acquisition probe 7 and the supplementary light 8 to rotate, and collecting images of the coatings at different positions inside the motor stator of the water pump.

[0070] An air delivery pipe 13 is arranged on the inner wall of the support cylinder 5, and one end of the air delivery pipe 13 is connected to the output end of the air pump inside the control box 4.

[0071] A rotary joint pipe 6 is installed on the outer wall of the air delivery pipe 13 through a three-way valve. The rotary joint pipe 6 is used to deliver gas into the adapter ring 16. After the gas is delivered into the adapter ring 16, the gas is discharged through the exhaust holes, thereby blowing the wiping layer 19, cleaning the adhered dirt on the wiping layer 19, maintaining the next cleaning quality, and facilitating reuse.

[0072] As a preferred embodiment of the present invention, the control mechanism includes a control motor 10, a gear ring 17, and a sealing ring 35. Among them, the rotation of the control motor 10 is controlled by a computer.

[0073] The control motor 10 is fixedly installed on the outer wall of the support cylinder 5. The gear ring 17 is fixedly connected to the axial end of the adapter ring 16. The output end of the control motor 10 is fixedly installed with a driving wheel meshing with the gear ring 17, and the driving wheel is a gear meshing with the gear ring 17.

[0074] The driving wheel is controlled to rotate by controlling the motor 10 , thereby controlling the adapter ring 16 to rotate through the gear ring 17 , so as to control the arc plate 18 and the wiping layer 19 to rotate.

[0075] The sealing ring 35 is rotatably arranged at the axial end of the adapter ring 16, one end of the adapter tube 6 is fixedly connected to the axial end of the sealing ring 35, and the radial outer wall of the sealing ring 35 is connected to the adapter ring 16 via a sealing bearing, wherein the adapter tube 6 is a hard copper tube, and when the adapter ring 16 rotates, the connection between the adapter tube 6 and the adapter ring 16 is maintained, and at the same time, the position of the sealing ring 35 is kept fixed, so as to facilitate the delivery of gas toward the inside of the adapter ring 16.

[0076] A conical groove 33 is provided on one side of the wiping layer 19 close to the arc plate 18, and a plurality of conical grooves 33 are evenly provided along the outer wall of the wiping layer 19, thereby forming a cavity inside the wiping layer 19. When the elastic wiping layer 19 is connected to the arc plate 18 through the cavity, the pressure contacting the lens will be converted into compression deformation of the cavity, so that the wiping layer 19 can more flexibly fit the curved surface of the lens (such as a spherical surface or an arc surface), thereby further improving the wiping and cleaning effect and maintaining the quality of the collected image.

[0077] A connecting groove 34 is provided inside the arc plate 18, and the position of the connecting groove 34 corresponds to the conical groove 33. The adapter ring 16 transports gas to the conical groove 33 through the connecting groove 34. When the adapter ring 16 exhausts gas toward the connecting groove 34, the gas passes through the conical groove 33 and then recoils against the wiping layer 19, thereby cleaning the wiping layer 19 and improving the cleanliness of the wiping layer 19 when wiping the lens again.

[0078] In this embodiment, the setting of the conical groove 33 not only facilitates the fitting of the wiping layer 19 to the lens, but also reduces the resistance to gas transmission when the wiping layer 19 is recoiled, thereby improving the effect of the recoiled wiping layer 19, and mutually promoting the improvement of the quality of the wiping layer 19 wiping the lens, thereby maintaining the quality of image information acquisition.

[0079] A pressing ball 37 is fixedly mounted on the outer wall of the sealing ring 35 . A plurality of pressing balls 37 are evenly arranged in a ring shape along the axis of the sealing ring 35 . The sealing ring 35 provides a support position for the pressing balls 37 to be installed.

[0080] A closing ring 36 for closing the connecting groove 34 is elastically mounted on the inner wall of the adapter ring 16, and a force ball 38 is fixedly mounted on the outer wall of the closing ring 36. When the adapter ring 16 rotates, the pressure ball 37 and the force ball 38 slide alternately, thereby controlling the reciprocating sliding of the closing ring 36 through cooperation with the elastic force, and adjusting the flow aperture of the connecting groove 34 and the gas delivery velocity of the connecting groove 34 through reciprocating adjustment. By reciprocatingly adjusting the recoil gas velocity, a pulse-type recoil cleaning is formed, thereby improving the quality of the wiping layer 19.

[0081] As a preferred embodiment of the present invention, the protection mechanism includes an adapter tube 9, a sliding plug 24, and an extension tube 23.

[0082] The adapter tube 9 is fixedly installed on the outer wall of the installation tube 2. The sliding plug 24 is elastically installed on the inner wall of the adapter tube 9, and the outer wall of the sliding plug 24 is in sliding fit with the inner wall of the adapter tube 9. By adjusting the air pressure in the inner cavity of the adapter tube 9, the sliding of the sliding plug 24 is controlled. A spring is arranged above the sliding plug 24, and the other end of the spring is fixedly connected to the inner wall of the adapter tube 9.

[0083] The extension tube 23 is fixedly installed on the upper end face of the sliding plug 24, and its inner cavity is communicated with the inner cavity of the adapter tube 9. The inner cavity of the adapter tube 9 is connected to the output end of a three-way valve arranged outside the air delivery pipe 13 through a conduit. When it is necessary to clean the dirt inside the motor stator of the water pump, an air pump is connected to the adapter tube 9. At this time, the air pressure inside the adapter tube 9 increases, and the extension tube 23 slides outwards, so as to approach the inner wall of the motor stator of the water pump and start blowing and cleaning.

[0084] The upper end of the extension tube 23 extends to the outer wall of the adapter tube 9, and an installation cover 14 is fixedly installed. A brush 15 is fixedly installed at the upper end of the installation cover 14. When the extension tube 23 exhausts air, the brush 15 vibrates to sweep the dirt, improving the effect of cleaning the inside of the motor stator of the water pump, and further maintaining the accuracy of the collected image information.

[0085] A limiting rod 20 is fixedly installed on the inner wall of the installation cover 14. The limiting rod 20 is provided to prevent the installation cover 14 from completely fitting with the inner wall of the motor stator of the water pump.

[0086] An elastic tube 22 is fixedly installed on the outer wall of the extension tube 23. A counterweight ring 21 is fixedly installed at one end of the elastic tube 22 away from the extension tube 23. When the extension tube 23 exhausts air, due to the reaction force of the gas, the counterweight ring 21 swings, adjusting the exhaust angle, thereby disturbing the vibration of the brush 15 and improving the cleaning effect. At the same time, the counterweight ring 21 is made of wear-resistant alloy material to reduce the friction loss during swinging.

[0087] As a preferred embodiment of the present invention, the bottom of the installation tube 2 has an arc-shaped notch. A scraping plate 39 is slidably arranged at the arc-shaped notch. The scraping plate 39 is inclined. After wiping the lens, rotate the arc-shaped plate 18 until the wiping layer 19 is located at the arc-shaped notch outside the installation tube 2 (it should be noted that all the operations of the recoil wiping layer 19 mentioned above need to be carried out at the arc-shaped notch). When the arc-shaped plate 18 rotates to the arc-shaped notch, the outer wall of the wiping layer 19 is scraped by the scraping plate 39, cooperating with the recoil cleaning, further improving the cleanliness of the surface of the wiping layer 19 and the effect of re-wiping and cleaning, and being used to maintain the accuracy of the collection by the collection probe 7.

[0088] The upper end of the scraper plate 39 extends to the interior of the mounting tube 2 and is fixedly installed with a support plate 27. The upper end of the support plate 27 is connected to the inner wall of the mounting tube 2 through an elastic member. The support plate 27 is connected to the inner wall of the mounting tube 2, thereby realizing the elastic connection of the scraper plate 39. Compared with the rigid connection between the scraper plate 39 and the mounting tube 2, it can reduce the damage to the wiping layer 19 during scraping and increase the service life of the wiping layer 19.

[0089] A storage tank 25 is detachably mounted on the inner wall of the mounting tube 2. A detachable end cap is disposed on the upper portion of the storage tank 25. The inner cavity is used to store cleaning liquid (alcohol is selected), and an air pressure balance port is disposed at the end cap.

[0090] A hard tube 28 is slidably installed on the bottom surface of the storage tank 25 through an elastic member. The hard tube 28 is located at one end of the storage tank 25 and is provided with a spring connected to the inner wall of the storage tank 25 on the outside. A drainage plate 26 is fixedly installed on the bottom of the hard tube 28. The inner cavity of the storage tank 25 is connected to the drainage plate 26 through the hard tube 28, and the cleaning liquid drips downward through the drainage plate 26.

[0091] The outer wall of the support plate 27 is provided with a groove for the hard tube 28 to be inserted into, and the outer wall of the hard tube 28 is provided with an annular plate for the support plate 27 to press against.

[0092] A support frame 29 is fixedly installed on the inner wall of the storage tank 25, a baffle ring 32 is fixedly installed on the inner wall of the hard tube 28, and a conical plug 31 for closing the baffle ring 32 is fixedly installed on the bottom surface of the support frame 29. When the arc plate 18 rotates to the arc notch, the wiping layer 19 presses the scraping plate 39 to make the hard tube 28 and the baffle ring 32 slide upward until the baffle ring 32 and the conical plug 31 are separated. At this time, the hard tube 28 is turned on to realize automatic discharge of the cleaning liquid. After the cleaning liquid is discharged, on the one hand, the wiping layer 19 can be cleaned, and on the other hand, after the wiping layer 19 is wetted, the wet wiping layer 19 can wipe the lens to improve the cleaning quality and at the same time can play a lubricating effect, protect the lens, and improve the quality of collected image information.

[0093] In order to control the discharge amount of the cleaning liquid, the aperture of the through holes for the flow of the cleaning liquid in the hard tube 28 and the drainage plate 26 needs to be reduced as much as possible. In order to prevent the cleaning liquid from being unable to be discharged due to the tension of the cleaning liquid, a guide wire 30 is fixedly installed at the bottom of the conical plug 31. When the hard tube 28 is lifted, the guide wire 30 slides inside the hard tube 28 with the hard tube 28 as a reference, thereby destroying the tension balance and maintaining smooth drainage.

[0094] like Figure 12 As shown, a defect detection method for a motor stator is provided, the method adopts the above-mentioned defect detection device for a motor stator, and comprises the following steps:

[0095] A1. First, debug the device and detect the clarity of the image information collected and fed back by the acquisition probe 7;

[0096] A2. Then, control the movement of the motor stator of the water pump to be inspected until the installation cylinder 2 is located inside the stator. At this time, turn on the supplementary light 8;

[0097] A3. When the acquisition probe 7 collects the defect image information of the inner wall of the motor stator of the water pump, simultaneously control the rotation of the installation cylinder 2 to adjust the acquisition area;

[0098] A4. The acquisition probe 7 feeds the collected image information back to the display port. When the display port shows a suspicious image, exhaust and clean through the extension pipe 23.

[0099] The above front, back, left, right, up, and down are all based on the Figure 1 in the accompanying drawings of the specification. Taking the perspective of the person observing as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0100] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0101] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A defect detection device for a motor stator, characterized in that: It includes a collection part, an installation part, a control mechanism, an auxiliary mechanism and a protection mechanism; The installation part includes a workbench (1), a control box (4) and a support cylinder (5). The control box (4) is arranged on the workbench (1), and the support cylinder (5) is rotatably arranged on one side of the control box (4); The collection part includes an installation cylinder (2), a collection probe (7) and a supplementary light (8). The collection probe (7) is used to collect image information of coating defects inside the motor stator of the water pump. The collection probe (7) and the supplementary light (8) are both arranged on the outer wall of the installation cylinder (2). The axial end of the installation cylinder (2) is connected to the outer wall of the support cylinder (5); The protection mechanism includes an adapter ring (16), an arc-shaped plate (18) and an elastic wiping layer (19). The adapter ring (16) has a cavity inside and is rotatably installed on the outer wall of the support cylinder (5); The wiping layer (19) is connected to the adapter ring (16) through the arc-shaped plate (18). The outer wall of the wiping layer (19) is attached to the outer wall of the installation cylinder (2), and the side wall of the wiping layer (19) is inclined; The control mechanism is used to control the rotation of the adapter ring (16); The protection mechanism is used to clean the inner wall of the motor stator of the water pump.

2. The defect detection device for a motor stator according to claim 1, characterized in that: An installation box (11) is fixedly installed on the inner wall of the control box (4). A driving motor (12) is fixedly installed on the outer wall of the installation box (11). The support cylinder (5) extends into the inner wall of the installation box (11), and the driving motor (12) controls the rotation of the support cylinder (5) through a transmission member; An air delivery pipe (13) is arranged on the inner wall of the support cylinder (5). A transfer pipe (6) is installed on the outer wall of the air delivery pipe (13) through a three-way valve. The transfer pipe (6) is used to deliver gas into the adapter ring (16).

3. The defect detection device for a motor stator according to claim 2, characterized in that: The control mechanism includes a control motor (10), a gear ring (17) and a sealing ring (35); The control motor (10) is fixedly installed on the outer wall of the support cylinder (5). The gear ring (17) is fixedly connected to the axial end of the adapter ring (16). A driving wheel meshing with the gear ring (17) is fixedly installed at the output end of the control motor (10); The sealing ring (35) is rotatably arranged at the axial end of the adapter ring (16). One end of the transfer pipe (6) is fixedly connected to the axial end of the sealing ring (35).

4. A defect detection device for a motor stator according to claim 3, characterized in that: A conical groove (33) is formed on the side of the wiping layer (19) close to the arc-shaped plate (18). A plurality of conical grooves (33) are evenly formed along the outer wall of the wiping layer (19); A communication groove (34) is formed inside the arc-shaped plate (18). The position of the communication groove (34) corresponds to that of the conical groove (33). The adapter ring (16) delivers gas into the conical groove (33) through the communication groove (34).

5. The defect detection device for a motor stator according to claim 4, characterized in that: A pressing ball (37) is fixedly installed on the outer wall of the sealing ring (35). A plurality of pressing balls (37) are evenly arranged in a ring along the axis of the sealing ring (35); A closing ring (36) for closing the communication groove (34) is elastically installed on the inner wall of the adapter ring (16). A force-applying ball (38) is fixedly installed on the outer wall of the closing ring (36).

6. The defect detection device for a motor stator according to claim 2, characterized in that: The protection mechanism includes an adapter tube (9), a sliding plug (24) and an extension tube (23); The adapter tube (9) is fixedly installed on the outer wall of the installation tube (2), the sliding plug (24) is elastically installed on the inner wall of the adapter tube (9), and the outer wall of the sliding plug (24) is slidably attached to the inner wall of the adapter tube (9); The extension tube (23) is fixedly installed on the upper end face of the sliding plug (24), and its inner cavity is communicated with the inner cavity of the adapter tube (9). The inner cavity of the adapter tube (9) is connected to the output end of a three-way valve arranged outside the air delivery pipe (13) through a conduit.

7. The defect detection device for a motor stator according to claim 6, characterized in that: The upper end of the extension tube (23) extends to the outer wall of the adapter tube (9) and is fixedly installed with a mounting cover (14). The upper end of the mounting cover (14) is fixedly installed with bristles (15), and a limiting rod (20) is fixedly installed on the inner wall of the mounting cover (14); An elastic tube (22) is fixedly installed on the outer wall of the extension tube (23), and a counterweight ring (21) is fixedly installed at one end of the elastic tube (22) away from the extension tube (23).

8. The defect detection device for a motor stator according to claim 5, characterized in that: The bottom of the installation tube (2) has an arc-shaped notch, and a scraping plate (39) is slidably arranged at the arc-shaped notch, and the scraping plate (39) is inclined; The upper end of the scraping plate (39) extends into the installation tube (2) and is fixedly installed with a support plate (27). The upper end of the support plate (27) is connected to the inner wall of the installation tube (2) through an elastic member.

9. A defect detection device for a motor stator according to claim 8, characterized in that: A storage tank (25) is detachably installed on the inner wall of the installation tube (2). The bottom surface of the storage tank (25) is slidably installed with a rigid tube (28) through an elastic member, and a liquid discharge plate (26) is fixedly installed at the bottom of the rigid tube (28); A groove for inserting the rigid tube (28) is formed in the outer wall of the support plate (27); A support frame (29) is fixedly installed on the inner wall of the storage tank (25). A flow blocking ring (32) is fixedly installed on the inner wall of the rigid tube (28). A conical plug (31) for closing the flow blocking ring (32) is fixedly installed on the bottom surface of the support frame (29), and a guiding wire (30) is fixedly installed at the bottom of the conical plug (31).

10. A method for defect detection of a motor stator, which uses the defect detection device for a motor stator described in claim 9, characterized in that: It includes the following steps: A1. First, debug the equipment and detect the clarity of the image information collected and fed back by the acquisition probe (7); A2. Then control the movement of the motor stator of the water pump to be inspected until the installation tube (2) is located inside the stator. At this time, turn on the supplementary light (8); A3. When the acquisition probe (7) collects the image information of the inner wall defects of the motor stator of the water pump, at the same time, control the installation tube (2) to rotate to adjust the acquisition area; A4. The acquisition probe (7) feeds back the collected image information to the display port. When the display port shows a suspicious image, exhaust and clean through the extension tube (23).

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