A stator lamination cooling deformation detection device

Abstract

The present invention discloses a stator lamination rubber encapsulation cooling deformation detection device, which relates to the field of stator laminations and includes a workbench and a frame. A groove is provided on the top of the workbench, and a drive disc is rotatably arranged in the groove. A placement plate is elastically provided on the top of the drive disc, and guide pillars are symmetrically arranged in the drive disc to cooperate with the placement plate. A claw is provided on the top of the drive disc, and an arc-shaped tooth block is connected to the drive disc at one end of the guide pillar. A fixed gear is provided in the interlayer of the workbench, and a turntable is rotatably provided on the top of the frame. The present invention drives the insertion rod at the bottom of the placement plate to slide downward under the action of the stator's own gravity, thereby causing the special-shaped gear to rotate inward and contact the outer wall of the stator. The position of the laser scanner body is adjusted by the arc-shaped tooth block and in cooperation with the transmission mechanism, ensuring that the stator as a whole is detected at different positions during the overall detection process.

Description

Technical Field

[0001] The present invention relates to the field of stator laminations, and in particular to a device for detecting deformation of stator laminations during cooling by rubber coating. Background Art

[0002] Stator lamination refers to the structure of the stator core formed by stacking multiple thin sheets (usually silicon steel sheets) in the stator component of an electric motor or generator. These sheets are usually produced by stamping, shearing or laser cutting, and then stacked in sequence to form the core part of the stator. Among them, the rubber coating of motor stator laminations is a key process in motor manufacturing, mainly used for the production of motor stator cores. Its purpose is to reduce eddy current losses during motor operation by rubber coating the surface of the stator core laminations, thereby improving the motor efficiency.

[0003] In the prior art, during the annealing treatment of the motor stator laminations, if the temperature is too high, the annealing time is too long, or there is uneven heating and cooling, the stator laminations may be deformed. Therefore, after the annealing treatment of the motor stator laminations, it is necessary to detect whether they are deformed. Most of them use laser scanning technology. During the detection process, the staff needs to limit the stator to ensure that the stator does not move during the scanning process. However, when facing a larger stator, the staff needs to use a clamping assembly to manually limit it. This process reduces the overall detection efficiency and increases the overall workload of the staff. In addition, during the detection process, the light in different areas will have a certain degree of impact on the laser scanner, thereby reducing the overall detection accuracy.

[0004] To sum up, when faced with larger stators, manual limit clamping by staff reduces the overall detection efficiency and increases the overall workload of staff. At the same time, during the detection process, light will have a certain degree of impact on the laser scanner, resulting in a reduction in overall detection accuracy. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a stator lamination rubber lamination cooling deformation detection device to solve the technical problems that the manual clamping method reduces the overall detection efficiency and increases the overall workload of the staff, and the light from different external areas leads to a decrease in the overall detection accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stator lamination rubber lamination cooling deformation detection device, comprising a workbench and a frame, wherein the frame is located on top of the workbench, a groove is formed on the top of the workbench, and a drive disk is rotatably arranged in the groove, a placement plate is elastically provided on the top of the drive disk, and guide posts that cooperate with the placement plate are symmetrically arranged inside the drive disk, and claws that cooperate with the guide posts are provided on both sides of the placement plate on the top of the drive disk;

[0007] One end of the guide column is connected to an arc-shaped tooth block through a driving disk, and a fixed gear meshing with the arc-shaped tooth block is rotatably provided on the side wall of the groove passing through the interlayer of the workbench. A turntable cooperating with the fixed gear is rotatably provided on the top of the frame, and a laser scanner body is provided at the bottom of the turntable.

[0008] By adopting the above technical solution, the insertion rod at the bottom of the placement plate is driven to slide downward under the action of the stator's own gravity, thereby causing the special-shaped gear to rotate inward and contact the outer wall of the stator. In this process, the stator is automatically clamped and the fixed gear is regularly driven to rotate by the arc-shaped tooth block, and the laser scanner body is driven to adjust its position in conjunction with the transmission mechanism. In this way, the laser scanner body will adjust its position by a certain angle every time the driving disk rotates one circle during the detection process, ensuring that the stator as a whole is detected at different positions during the overall detection process.

[0009] The present invention is further configured such that a stepping motor is provided at the bottom of the workbench, and an output end of the stepping motor is connected to a driving disk, wherein the stepping motor is used to drive the driving disk to rotate.

[0010] Preferably, the stepping motor allows the operator to adjust the rotation speed of the driving disc, thereby facilitating the detection of stators with different outer diameters and improving the overall practicality of the device.

[0011] The present invention is further configured such that an insertion rod cooperating with the guide column is provided at the bottom of the placement plate, wherein the contact surfaces of the insertion rod and the guide column are both arranged in an arc shape.

[0012] Preferably, when the placement plate slides downward under the action of the stator's own gravity, the bottom insertion rod will be driven to move downward, and the arc-shaped end faces of the insertion rod will squeeze the arc-shaped end faces of the guide pillars on both sides, thereby causing the guide pillars to slide to both sides.

[0013] The present invention is further configured such that a fixed tooth block is partially provided on the top of the guide column, and a special-shaped gear meshing with the fixed tooth block is connected to the bottom of the claw.

[0014] Preferably, when the guide column slides on both sides under the action of the insertion rod, the fixed tooth block will move accordingly, and under the engagement with the special-shaped gear, it will drive the claw to rotate at a certain angle, so that the end face of the claw contacts the outer wall of the stator.

[0015] The present invention is further configured such that the top of the fixed gear is connected to a rotating shaft, and the other end of the rotating shaft passes through the workbench and is connected to the top of the frame, the other end of the rotating shaft is connected to a transmission mechanism, and the other end of the transmission mechanism is connected to the turntable.

[0016] Preferably, when the fixed gear rotates a certain angle under the action of the arc-shaped tooth block, the transmission mechanism is driven to rotate under the action of the rotating shaft, thereby causing the turntable on the top of the frame to rotate accordingly, thereby realizing position adjustment of the laser scanner body.

[0017] The present invention is further configured such that the transmission mechanism includes a driving disk, a transmission belt and a driven disk, the driving disk and the driven disk are connected by a transmission belt, one end of the driving disk is connected to a rotating shaft, and one end of the driven disk is connected to the rotating disk.

[0018] Preferably, when the rotating shaft rotates through the fixed gear, the active disk at one end will be driven to rotate, and the driven disk will follow and rotate under the action of the transmission belt, thereby realizing that the driven disk will drive the rotating disk at the bottom end to rotate and adjust during the rotation of the fixed gear.

[0019] The present invention is further configured such that a mounting plate is provided on the inner wall of the frame, and one end of the rotating shaft passes through the mounting plate, and a reciprocating screw is provided on the part located inside the mounting plate, and a screw sleeve is slidingly provided on the outer wall of the reciprocating screw, and a dust removal component is detachably provided on one side of the screw sleeve.

[0020] Preferably, in the process of the driving disk driving the stator to rotate, the reciprocating screw will also rotate through the rotating shaft. During this process, the reciprocating screw will drive the dust removal assembly to move under the action of the screw sleeve, thereby adjusting the dust removal assembly to different positions on the mounting plate, effectively cleaning the dust on the stator, ensuring the uniformity of the laser beam emission of the laser scanner body, and further improving the accuracy of the detection of the laser scanner body.

[0021] The present invention is further configured such that a roller is rotatably provided on the inner side of one end of the clamping claw, and the outer wall of the roller is wrapped with a protective sleeve.

[0022] Preferably, when the end face of the claw contacts the outer wall of the stator, the roller converts the sliding friction between the claw and the stator into rolling friction, thereby making it easy for the staff to lift the stator in the vertical direction and to lift the stator after the subsequent inspection is completed. At the same time, the protective cover on the outer wall of the roller can prevent the roller from directly contacting the outer wall of the stator, effectively preventing the sliding roller from causing a certain degree of wear on the outer wall of the stator during lifting.

[0023] The present invention is further configured such that a compression spring is connected to the bottom of the placement plate, and the other end of the compression spring is connected to the drive disk.

[0024] Preferably, when the staff hoist the stator to the top of the placement plate, the placement plate is driven to slide downward by the stator's own gravity. During this process, the compression spring at the bottom of the placement plate is in a compressed state. After the inspection is completed and the stator is hoisted away, the placement plate is reset by the reset action of the compression spring. At this time, the claw resets and rotates, which is consistent with the subsequent normal stator placement inspection.

[0025] The present invention is further configured such that the top of the placement plate is provided with a rough surface.

[0026] Preferably, the provision of the rough surface facilitates increasing the sliding friction between the placement plate and the stator, thereby preventing the stator from shifting in position when subjected to slight external vibrations.

[0027] In summary, the present invention mainly has the following beneficial effects:

[0028] The present invention elastically provides a placement plate on the top of the driving disk. By placing a large-sized stator to be inspected on the placement plate, the insertion rod at the bottom of the placement plate is driven to slide downward under the action of the stator's own gravity, thereby causing the guide column to slide to both sides. The fixed tooth block on the guide column drives the special-shaped gear at the bottom of the clamping claw to rotate, thereby causing the special-shaped gear to rotate inward and contact the outer wall of the stator. In this process, the stator's position limiting clamping work is automatically completed without manual clamping, thereby reducing the overall workload and improving the overall inspection efficiency.

[0029] The present invention provides a fixed gear through the groove of the workbench. When the guide column slides to one side, the arc-shaped tooth block at one end is driven to engage with the fixed gear. The stepping motor drives the driving disk to rotate, and the arc-shaped tooth block regularly drives the fixed gear to rotate, and cooperates with the transmission mechanism to drive the laser scanner body to adjust the position. In this way, every time the driving disk rotates one circle during the detection process, the laser scanner body will adjust the position of a certain angle, ensuring that the stator is detected at different positions during the overall detection process. The collected three-dimensional point cloud data will then be processed and reconstructed by computer software, effectively improving the accuracy of the overall detection.

[0030] The present invention is provided with a mounting plate on the inner side of the frame, and a reciprocating screw is provided on the part of the rotating shaft that passes through the mounting plate. When the driving disk drives the stator to rotate, the reciprocating screw will also rotate through the rotating shaft. During this process, the reciprocating screw will drive the dust removal component to move under the action of the screw sleeve, so as to adjust the dust removal component to different positions on the mounting plate, effectively clean the dust on the stator, ensure the uniformity of the laser beam emission of the laser scanner body, and further improve the accuracy of the detection of the laser scanner body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view of the present invention;

[0032] Figure 2 It is a schematic diagram of the framework structure of the present invention;

[0033] Figure 3 is a cross-sectional view of the workbench of the present invention;

[0034] Figure 4 This is a schematic diagram of the arc-shaped gear block structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the drive disk structure of the present invention;

[0036] Figure 6 It is a schematic diagram of the guide column structure of the present invention;

[0037] Figure 7 For the present invention Figure 3 A magnified view of middle A;

[0038] Figure 8 It is the front view of the present invention;

[0039] Figure 9 It is a schematic structural diagram of the dust removal mechanism of the present invention;

[0040] Figure 10 It is a schematic structural diagram of the transmission mechanism of the present invention;

[0041] Figure 11 For the present invention Figure 9 Enlarged view of middle B;

[0042] Figure 12 Schematic diagram of the structure of the third embodiment of the present invention.

[0043] Description of reference numerals:

[0044] 1. Workbench; 2. Frame; 3. Clamping claw; 4. Placement plate; 5. Rotating shaft; 6. Dust removal assembly; 7. Mounting plate; 8. Turntable; 9. Laser scanner body; 10. Groove; 11. Drive plate; 12. Fixed gear; 13. Guide column; 14. Insert rod; 15. Stepper motor; 16. Arc gear block; 17. Compression spring; 18. Special-shaped gear; 19. Fixed gear block; 20. Transmission mechanism; 21. Reciprocating screw; 22. Screw sleeve; 23. Roller. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0046] The following describes an embodiment of the present invention based on its overall structure.

[0047] First embodiment:

[0048] See also Figures 1-10 The stator lamination rubber lamination cooling deformation detection device shown in the figure includes a workbench 1, a frame 2, a limiting mechanism, a detection mechanism and a sliding mechanism. A groove 10 is opened on the top of the workbench 1, and a driving disk 11 is rotatably set in the groove 10, and a placement plate 4 is elastically set on the top of the driving disk 11. The staff hoist the large-sized stator to be detected to the top of the placement plate 4, and then the placement plate 4 is driven to slide downward under the action of the stator's own gravity. Since the bottom of the placement plate 4 is provided with a plug rod 14 that cooperates with the guide column 13, the contact surface of the plug rod 14 and the guide column 13 are both arc-shaped. When the placement plate 4 slides downward under the action of the stator's own gravity, the plug rod 14 at the bottom will be driven to move downward, and the arc-shaped end surface of the plug rod 14 will be squeezed against the arc-shaped end surface of the guide columns 13 on both sides, thereby causing the guide columns 13 to slide to both sides;

[0049] The top of the driving disc 11 is provided with claws 3 on both sides of the placing plate 4, which cooperate with the guide posts 13. The top of the guide post 13 is partially provided with a fixed tooth block 19, and the bottom of the claw 3 is connected with a special-shaped gear 18 meshing with the fixed tooth block 19. When the guide post 13 slides on both sides under the action of the insertion rod 14, the fixed tooth block 19 will follow and move, and under the engagement with the special-shaped gear 18, it drives the claw 3 to rotate at a certain angle, so that the end face of the claw 3 contacts the outer wall of the stator. In this process, the stator limit clamping work is completed automatically without manual clamping, which reduces the overall workload and improves the overall detection efficiency. At the same time, the output end of the stepping motor 15 is connected to the driving disc 11. Under the action of the stepping motor 15, it is convenient for the staff to adjust the rotation rate of the driving disc 11, so as to facilitate the detection of stators with different outer diameters.

[0050] One end of the guide column 13 can pass through the driving disk 11 and is connected to an arc-shaped tooth block 16. A fixed gear 12 that meshes with the arc-shaped tooth block 16 is rotatably provided on the side wall of the groove 10 in the interlayer of the workbench 1. When the stator is hoisted to the top of the placement plate 4, the guide column 13 will slide to both sides through the insertion rod 14. During this process, the arc-shaped tooth block 16 at one end of the guide column 13 will mesh with the fixed gear 12. When the stepping motor 15 drives the driving disk 11 to rotate, the arc-shaped tooth block 16 will regularly drive the fixed gear 12 to rotate. Since a rotating shaft 5 is connected to the top of the fixed gear 12, and the other end of the rotating shaft 5 is connected to a transmission mechanism 20, and the other end of the transmission mechanism 20 is connected to the turntable 8, a laser scanner body 9 is provided at the bottom of the turntable 8;

[0051] When the fixed gear 12 rotates at a certain angle under the action of the arc-shaped tooth block 16, the transmission mechanism 20 is driven to rotate under the action of the rotating shaft 5, thereby causing the turntable 8 at the top of the frame 2 to rotate accordingly, thereby adjusting the position of the laser scanner body 9. In this way, every time the drive disk 11 rotates one circle during the detection process, the laser scanner body 9 will adjust its position at a certain angle, ensuring that the stator as a whole is detected at different positions during the overall detection process. The collected three-dimensional point cloud data will then be processed and reconstructed through computer software, effectively improving the accuracy of the overall detection.

[0052] In the above embodiment, please refer to Figure 10, wherein the transmission mechanism 20 includes a driving disc, a transmission belt and a driven disc. The driving disc and the driven disc are connected by a transmission belt. A rotating shaft 5 is connected to one end of the driving disc, and one end of the driven disc is connected to the turntable 8. When the rotating shaft 5 rotates through the fixed gear 12, it will drive the driving disc at one end to rotate, and the driven disc will follow the rotation under the action of the transmission belt, thereby realizing that the driven disc will drive the turntable 8 at the bottom to rotate and adjust during the rotation of the fixed gear 12.

[0053] In the above embodiment, please refer to Figure 6 A compression spring 17 is connected to the bottom of the placement plate 4, and the other end of the compression spring 17 is connected to the drive disk 11. When the staff hoist the stator to the top of the placement plate 4, the placement plate 4 is driven to slide downward by the gravity of the stator itself. During this process, the compression spring 17 at the bottom of the placement plate 4 is in a compressed state. After the inspection is completed and the stator is hoisted and removed, the placement plate 4 is reset by the resetting action of the compression spring 17. At this time, the claw 3 resets and rotates, and the normal placement inspection of the subsequent stator is carried out.

[0054] Second embodiment:

[0055] See also Figure 9 and Figure 11 The stator lamination rubber coating cooling deformation detection device shown has an overall structure similar to that of Example 1, wherein a mounting plate 7 is provided on the inner wall of the frame 2, and one end of the rotating shaft 5 passes through the mounting plate 7, and a reciprocating screw 21 is provided on the part located inside the mounting plate 7, and a screw sleeve 22 is slidingly provided on the outer wall of the reciprocating screw 21, and a dust removal assembly 6 is detachably provided on one side of the screw sleeve 22. In the process of the driving disc 11 driving the stator to rotate, the reciprocating screw 21 will also rotate through the rotating shaft 5. In this process, the reciprocating screw 21 will drive the dust removal assembly 6 to move under the action of the screw sleeve 22, and the dust on the stator is cleaned by rotating the dust removal blades on the dust removal assembly 6. In this way, the dust removal assembly 6 can be adjusted to different positions on the mounting plate 7, and the dust on the stator can be effectively cleaned, thereby ensuring the uniformity of the laser beam emission of the laser scanner body 9 and further improving the detection accuracy of the laser scanner body 9. The specific working principle of the dust removal assembly 6 belongs to the prior art for those skilled in the art, so it is not elaborated in detail in this application.

[0056] The third embodiment:

[0057] See also Figure 12The stator lamination rubber-coated cooling deformation detection device shown is based on the second embodiment, in which a roller 23 is rotatably provided on the inner side of one end of the clamping claw 3, and the outer wall of the roller 23 is wrapped with a protective cover. When the end face of the clamping claw 3 contacts the outer wall of the stator, the roller 23 converts the sliding friction between the clamping claw 3 and the stator into rolling friction, thereby facilitating the staff to easily lift the stator in the vertical direction and facilitate the lifting of the stator after the subsequent inspection is completed. At the same time, the protective cover on the outer wall of the roller 23 can prevent the roller 23 from directly contacting the outer wall of the stator, effectively preventing the sliding roller 23 from causing a certain degree of wear on the outer wall of the stator during lifting.

[0058] The present invention works specifically as follows: when in use, the large-sized stator to be inspected is hoisted onto the placement plate 4 on the top of the driving disk 11, and the placement plate 4 is driven downward by the action of the stator's own gravity. During this process, the insertion rod 14 at the bottom of the placement plate 4 will slide down and squeeze the guide posts 13 on both sides. At this time, the guide posts 13 slide to both sides under the action of the insertion rod 14. Since fixed tooth blocks 19 are partially provided on the guide posts 13, the fixed tooth blocks 19 will mesh with the special-shaped gears 18 at the bottom ends of the clamping claws 3 during the sliding process to both sides. During this process, the clamping claws 3 are flipped at a certain angle and contacted with the outer wall of their stators, thereby realizing the limited clamping of the stator by the clamping claws 3, and then the driving disk 11 is driven to rotate by the stepping motor 15, and the laser scanner body 9 is used to scan and inspect the entire stator, which reduces the overall workload and improves the overall inspection efficiency.

[0059] In addition, an arc-shaped tooth block 16 is provided at one end of the guide column 13. When the guide column 13 slides on both sides under the action of the insertion rod 14, the arc-shaped tooth block 16 will slide out of the drive disk 11 and engage with the fixed gear 12 protruding from the groove 10. When the drive disk 11 is driven to rotate by the stepping motor 15, the arc-shaped tooth block 16 will also rotate with the drive disk 11. In this process, each time the drive disk 11 rotates one circle, the arc-shaped tooth block 16 will drive the fixed gear 12 to rotate a certain angle, and with the cooperation of the fixed gear 12 and the transmission mechanism 20, the laser scanner body 9 is driven to adjust the position of a certain angle, ensuring that the stator as a whole is detected at different positions during the overall detection process. (Since the working principle of the laser scanner relies on the emission of laser beams and the reception of reflected signals, when the detection angle of the laser scanner changes, the laser signal reflected by the target surface will also change. Especially in the case of low-reflective materials or certain special surfaces, the change in reflection angle may affect the signal strength received by the laser receiver, thereby affecting the accuracy of the data. Therefore, the light at different angles of the laser scanner body 9 will affect the detection results. In order to improve the accuracy of the overall detection, it is necessary to scan the outer wall of its stator as a whole at different positions.) The collected three-dimensional point cloud data will then be processed and reconstructed through computer software, effectively improving the accuracy of the overall detection.

[0060] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A stator lamination cooling deformation detection device, comprising a workbench and a frame, wherein the frame is located on top of the workbench, characterized in that: The top of the workbench is provided with a groove, and a driving disk is rotatably arranged in the groove, the top of the driving disk is elastically provided with a placement plate, and guide pillars cooperating with the placement plate are symmetrically arranged in the driving disk, the top of the driving disk is provided with claws cooperating with the guide pillars on both sides of the placement plate, and the bottom of the placement plate is provided with an insertion rod cooperating with the guide pillar, wherein the contact surface of the insertion rod and the guide pillar is both arranged in an arc shape, the top of the guide pillar is partially provided with a fixed tooth block, and the bottom of the claw is connected to a special-shaped gear meshing with the fixed tooth block; One end of the guide column can pass through the driving disk and be connected to an arc-shaped tooth block. A fixed gear that meshes with the arc-shaped tooth block is rotatably provided in the interlayer of the workbench and passes through the side wall of the groove. The top of the fixed gear is connected to a rotating shaft, and the other end of the rotating shaft passes through the workbench and is connected to the top of the frame. The other end of the rotating shaft is connected to a transmission mechanism, and the other end of the transmission mechanism is connected to the turntable. The laser scanner body is provided at the bottom of the turntable. The inner wall of the frame is provided with a mounting plate, and one end of the rotating shaft passes through the mounting plate. At the same time, a reciprocating screw is provided on the part located inside the mounting plate. A screw sleeve is slidingly provided on the outer wall of the reciprocating screw, and a dust removal component is detachably provided on one side of the screw sleeve.

2. The stator lamination cooling deformation detection device according to claim 1, characterized in that: A stepper motor is provided at the bottom of the workbench, and an output end of the stepper motor is connected to a driving disk, wherein the stepper motor is used to drive the driving disk to rotate.

3. The stator lamination cooling deformation detection device according to claim 1, characterized in that: The transmission mechanism includes a driving disc, a transmission belt and a driven disc. The driving disc and the driven disc are connected by a transmission belt. One end of the driving disc is connected to a rotating shaft, and one end of the driven disc is connected to the rotating disc.

4. The stator lamination cooling deformation detection device according to claim 1, characterized in that: A roller is rotatably provided on the inner side of one end of the clamping claw, and a protective cover is wrapped around the outer wall of the roller.

5. The stator lamination cooling deformation detection device according to claim 1, characterized in that: The bottom of the placement plate is connected with a compression spring, and the other end of the compression spring is connected with the driving disk.

6. The stator lamination cooling deformation detection device according to claim 1, characterized in that: The top of the placement plate is provided with a rough surface.

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