A device for removing residual iron filings from the front shaft section of a rotor.

Abstract

This utility model discloses a device for removing residual iron filings from the front shaft section of a rotor, comprising: a support; an iron filings blocking assembly mounted on the support, the iron filings blocking assembly having a clearance hole for the insertion of the front shaft section of the rotor; a magnetic suction assembly that, when engaged with the iron filings blocking assembly, transfers iron filings on the surface of the front shaft section located in the clearance hole and adheres to the wall of the clearance hole; and a driving assembly that drives the magnetic suction assembly to engage or disengage from the iron filings blocking assembly, the driving assembly being fixed to the magnetic suction assembly. This utility model can clean residual iron filings on the front shaft section of the rotor, preventing interference from iron filings on the front shaft section during the next process clamping the front shaft section from affecting the rotor machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor machining technology, specifically to a device for removing residual iron filings from the front shaft section of a rotor. Background Technology

[0002] Claw-pole rotors are a specially designed rotor structure widely used in AC generators. The main characteristic of claw-pole rotors is their stator core, which employs an axially segmented design, with the left and right segments fitting together to form claw-shaped magnetic poles. This design gives the AC generator advantages such as high torque density, simple structure, and low manufacturing cost. In claw-pole rotors, such as... Figure 1 As shown, the rotor shaft passes through the claw-shaped magnetic poles 3 and is fixed to them. The claw-shaped magnetic poles 3 divide the rotor shaft into a front shaft section 1 and a rear shaft section 2. To ensure that the AC generator claw-pole rotor meets the graphic design requirements, the circumferential surfaces of the front shaft section 1, the rear shaft section 2, and the claw-shaped magnetic poles 3 of the rotor shaft need to be machined. The machining sequence is as follows: 1. The circumferential surface of the front axle section 1 is machined at the first turning station.

[0003] 2. The automatic gantry removes the claw pole rotor located at the first turning station, and then transfers the claw pole rotor to the second turning station via the automatic gantry.

[0004] 3. After the claw pole rotor is clamped in the second turning station, the circumferential surfaces of the rear shaft section 2 and the claw-shaped magnetic pole 3 are turned in the second turning station.

[0005] In the second turning station, the lathe clamps and positions the front shaft section 1 after it has been machined in the first turning station. Therefore, it is required that there be no iron filings left on the surface of the front shaft section 1 after turning, so as to avoid affecting the clamping accuracy of the claw pole rotor at the second turning station. If the clamping accuracy is not good, the machining accuracy of the rear shaft section 2 and the claw-shaped magnetic pole 3 will be affected. In severe cases, it will lead to rotor damage. Since the workpiece is transferred by an automatic gantry, there is currently no corresponding means to remove the iron filings remaining on the front shaft section. Therefore, it is necessary to design a device to remove the iron filings remaining on the front shaft section. Summary of the Invention

[0006] This invention provides a device for removing residual iron filings from the front shaft section of a rotor. This invention can clean the residual iron filings on the front shaft section of the rotor, and avoid interference from the iron filings on the front shaft section during the next process of clamping the front shaft section, which would affect the rotor machining accuracy.

[0007] The technical solutions to the above technical problems are as follows: A device for removing residual iron filings from the front shaft section of a rotor includes: Support; The chip blocking assembly is mounted on a support and has clearance holes for the insertion of the front shaft section of the rotor. When combined with the chip blocking assembly, the chip on the surface of the front axle section located in the relief hole is transferred and attached to the magnetic suction assembly on the wall of the relief hole. A drive assembly that causes the magnetic attraction component to engage or disengage from the iron filings blocking component, wherein the drive assembly is fixed to the magnetic attraction component.

[0008] Furthermore, the chip blocking assembly includes: A support plate is fixed to the support, and a first through hole is provided on the support plate. The outer cylinder body, after one end of the outer cylinder body is fixed to the support plate, the inner hole on the outer cylinder body matches the first through hole; The first connecting plate is fixed to the outer cylinder, and the first connecting plate is provided with a second through hole; The inner cylinder is located inside the outer cylinder. After the inner cylinder is fixed to the first connecting plate, an annular cavity is formed between the inner cylinder and the outer cylinder for cooperating with the magnetic suction assembly. The inner hole of the inner cylinder cooperates with the second through hole to form the clearance hole.

[0009] Furthermore, the magnetic suction assembly includes a support sleeve and a magnet. The magnet is located inside the support sleeve and cooperates with the support sleeve. When the magnet is combined with the iron filings blocking assembly, the iron filings on the surface of the front axle section located in the relief hole are transferred and attached to the wall surface of the relief hole.

[0010] Furthermore, the magnetic suction assembly also includes a pressure block, and the support sleeve is provided with a limiting plate, with the magnet being clamped between the limiting plate and the pressure block.

[0011] Furthermore, the drive assembly includes a linear driver and a second connecting plate. The linear driver is mounted on the support, and the second connecting plate is fixed to the output end of the linear driver. The second connecting plate is also fixed to the magnetic attraction assembly.

[0012] Furthermore, it also includes an automatic transfer mechanism for automatically transferring the rotor, the automatic transfer mechanism comprising: truss; A translation drive mechanism that moves laterally along the truss, and the translation drive mechanism is connected to the truss; A lifting drive mechanism that moves along the vertical direction of the truss, and the lifting drive mechanism is fixed on the translation drive mechanism; The clamping assembly is fixed to the lifting drive mechanism.

[0013] The controller is electrically connected to the translation drive mechanism, the lifting drive mechanism, and the clamping assembly.

[0014] This invention is applied to the automatic turning process of generator rotors. After the front shaft section of the rotor is turned and removed from the lathe, it is transferred to the next process for turning the rear shaft section and claw-shaped magnetic poles via an automatic transfer mechanism. Before turning the rear shaft section and claw-shaped magnetic poles, the automatic transfer mechanism first puts the front shaft section of the rotor into the clearance hole of the chip blocking assembly, and makes the magnetic attraction assembly cooperate with the chip blocking assembly. Through the magnetic force generated by the magnetic attraction assembly, the chips on the surface of the front shaft section are transferred and attached to the wall of the clearance hole, thereby removing the chips from the surface of the front shaft section. This ensures the clamping accuracy when clamping the front shaft section in the next machining process of the rear shaft section and avoids product dimensional defects caused by interference from the chips on the front shaft section during the machining of the rear shaft section. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the motor rotor.

[0016] Figure 2 This is a perspective view of the device for removing residual iron filings from the front shaft section of the rotor according to this utility model.

[0017] Figure 3 This is a top view of the device for removing residual iron filings from the front shaft section of the rotor according to this utility model.

[0018] Figure 4 A 3D view of the metal scrap barrier assembly.

[0019] Figure 5 This is a cross-sectional view of the metal scrap barrier assembly.

[0020] Figure 6 This is a sectional view of the support sleeve.

[0021] Figure 7 This is a structural diagram of the truss, translation drive mechanism, and lifting drive mechanism.

[0022] Figure 8 for Figure 7 Enlarged view of part P in the image.

[0023] Labels in the attached diagram: Front axle section 1, rear axle section 2, claw-shaped magnetic pole 3.

[0024] Support 11, clearance hole 12, support plate 13 with first through hole 13a, outer cylinder 14, first connecting plate 15, second through hole 15a, inner cylinder 16, annular cavity 16a, end cap 16b, support sleeve 17, limit plate 17a, first clearance hole 17b, connecting seat 17c, magnet 18, pressure block 19, linear actuator 20, second connecting plate 21, truss 22, translation drive mechanism 23, lifting drive mechanism 24, clamping assembly 25, connecting seat 25a, rotary cylinder 25b, first pneumatic gripper 25c, second pneumatic gripper 25d, controller 26. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 8 As shown, the present invention discloses a device for removing residual iron filings from the front shaft section of a rotor, comprising a support 11, an iron filings blocking assembly, a magnetic suction assembly, and a drive assembly. The following is a detailed description of each part and the relationship between them.

[0027] The scrap block assembly is installed on the support 11, which includes an L-shaped seat 11a and a support plate 11b, with the support plate 11b fixed to the L-shaped seat 11a.

[0028] The scrap metal baffle assembly has a clearance hole 12 for inserting the front shaft section 1 of the rotor. The scrap metal baffle assembly includes a support plate 13, an outer cylinder 14, a first connecting plate 15, and an inner cylinder 16. The support plate 13 is fixed to the support 11. The support plate 13 is L-shaped and is fixed to the L-shaped seat 11a by screws. The support plate 13 has a first through hole 13a. After one end of the outer cylinder 14 is fixed to the support plate 13, the inner hole of the outer cylinder 14 mates with the first through hole 13a. The outer cylinder 14 and the support plate 13 can be integrally formed or fixed together by welding.

[0029] The first connecting plate 15 is fixed to the outer cylinder 14, and the first connecting plate 15 is provided with a second through hole 15a. The inner cylinder 16 is located inside the outer cylinder 14. After the inner cylinder 16 is fixed to the first connecting plate 15, an annular cavity 16a is formed between the inner cylinder 16 and the outer cylinder 14 for cooperating with the magnetic suction assembly. After the magnetic suction assembly passes through the first through hole 13a and enters the annular cavity 16a, the magnetic suction assembly surrounds the inner cylinder 16. The inner cylinder 16 and the first connecting plate 15 can be integrally formed, or they can be fixed together by welding. After the inner hole of the inner cylinder 16 mates with the second through hole 15a, the clearance hole 12 is formed. The front shaft section 1 of the rotating shaft passes through the second through hole 15a and enters the inner hole of the inner cylinder 16.

[0030] In this embodiment, an end cap 16b is provided at one end of the inner cylinder 16. The end cap 16b closes the opening at one end of the inner cylinder 16. When the magnetic suction assembly exits the annular cavity 16a, the end cap 16b can block the iron filings adsorbed on the inner wall of the relief hole 12, so as to prevent the iron filings from being attracted to the outside of the relief hole 12 by the magnetic suction assembly as it exits, thus leaving the iron filings inside the relief hole 12.

[0031] When the magnetic attraction component is combined with the iron filings blocking component, the iron filings on the surface of the front axle section 1 in the clearance hole 12 are transferred and adhered to the wall surface of the clearance hole 12. In this invention, the magnetic attraction component includes a support sleeve 17 and a magnet 18. The support sleeve 17 is a cylindrical body, and the magnet 18 is located inside the support sleeve 17 and cooperates with the support sleeve 17. When the magnet 18 is combined with the iron filings blocking component, the iron filings on the surface of the front axle section 1 in the clearance hole 12 are transferred and adhered to the wall surface of the clearance hole 12. The magnet 18 is annular, and the magnetic force of the magnet 18 generates an attraction force on the iron filings on the surface of the front axle section 1, causing the iron filings on the circumference of the front axle section 1 to transfer to the magnet 18. Since the inner cylinder 16 is spaced between the magnet 18 and the front axle section 1, when the iron filings are transferred to the magnet 18, they can only adhere to the wall surface of the clearance hole 12 under the action of magnetic force.

[0032] Since the magnet 18 is located inside the support sleeve 17, when the support sleeve 17 moves, the magnet 18 needs to move as a whole with the support sleeve 17. That is, the magnet 18 cannot move relative to the support sleeve 17. Therefore, the magnet 18 and the support sleeve 17 need to be integrated. In this embodiment, the preferred method is that the magnetic attraction assembly also includes a pressure block 19. The support sleeve 17 is provided with a limiting plate 17a, which is located at one end of the support sleeve 17. The limiting plate 17a is provided with a first clearance hole 17b when combined with the iron filings blocking assembly. The magnet 18 is clamped between the limiting plate 17a and the pressure block 19. That is, an axial force is applied to the pressure block 19, causing the pressure block 19 to move into the support sleeve 17. The pressure block 19 generates a pushing force on the magnet 18, and finally the magnet 18 is clamped between the limiting plate 17a and the pressure block 19. In addition to the above-mentioned clamping method, screws can also be used to fasten the magnet 18 and the limiting plate 17a.

[0033] As the front axle section 1 is repeatedly inserted into the relief hole 12 to remove iron filings from its surface, the amount of iron filings adhering to the inner wall of the relief hole 12 will increase. Therefore, it is necessary to clean the iron filings on the inner wall of the relief hole 12. Due to the presence of the magnetic force of the magnet 18, the iron filings adhering to the wall of the relief hole 12 are kept in a fixed state. Therefore, the first step in cleaning the iron filings is to remove the magnetic force generated by the magnet 18 on the iron filings. Therefore, in this embodiment, a driving component is provided. The driving component is fixed to the magnetic component. The driving component can be used to combine the magnetic component with the iron filings blocking component, or it can be used to separate the magnetic component from the iron filings blocking component, so as to select whether to generate a magnetic force on the iron filings as needed.

[0034] In this embodiment, the driving assembly includes a linear driver 20 and a second connecting plate 21. The linear driver 20 is mounted on the support 11, and the second connecting plate 21 is fixed to the output end of the linear driver 20. The second connecting plate 21 is also fixed to the magnetic attraction assembly. The linear driver 20 includes a support base and a linear driving component. The linear driving component is fixed on the support base and can be a cylinder, hydraulic cylinder, electric cylinder, etc. The linear driving component is fixed to the second connecting plate 21. A connecting seat 17c is provided at the other end of the support sleeve 17. The second connecting plate 21 and the connecting seat 17c on the support sleeve 17 are fastened together by fasteners. After the second connecting plate 21 and the connecting seat 17c are fastened, the connecting plate 21 limits the pressure block 19, thereby stably clamping the magnet 18 between the limiting plate 17a and the pressure block 19.

[0035] This embodiment also includes an automatic transfer mechanism for automatically transferring the rotor. The automatic transfer mechanism includes a truss 22, a translation drive mechanism 23, a lifting drive mechanism 24, a clamping assembly 25, and a controller 26. The translation drive mechanism 23 moves laterally along the truss 22 and is connected to the truss 22. The truss 22 is provided with a first slide rail. The translation drive mechanism 23 includes a first slide block, a first reduction motor, a gear, and a rack. The first slide block is slidably engaged with the first slide rail. The first reduction motor is fixed on the first slide block. The gear is fixed to the output end of the first reduction motor. The rack is fixed on the truss 22 and meshes with the rack. When the first reduction motor drives the gear to rotate, the translation drive mechanism 23 moves laterally along the truss 22 through the meshing action of the gear and the rack.

[0036] The lifting drive mechanism 24 moves vertically along the truss 22 and is mounted on the translation drive mechanism 23. When the translation drive mechanism 23 moves laterally along the truss 22, the lifting drive mechanism 24 moves laterally along the truss 22 along with the translation drive mechanism 23. The lifting drive mechanism 24 includes a mounting base and a lifting driver. The mounting base is fixed to the first slide in the translation drive mechanism 23, and the lifting driver is connected to the mounting base. The lifting driver can be a cylinder, a hydraulic cylinder, an electric linear module, etc.

[0037] The clamping assembly 25 is fixed to the lifting drive mechanism 24. In this embodiment, the clamping assembly 25 includes a connecting seat 25a, a rotary cylinder 25b, a first pneumatic gripper 25c, and a second pneumatic gripper 25d. The connecting seat 25a is fixed to the power output end of the lifting drive mechanism 24, the rotary cylinder 25b is fixed to the connecting seat 25a, the first pneumatic gripper 25c is fixed to one end of the rotary cylinder 25b, and the second pneumatic gripper 25d is fixed to the other end of the rotary cylinder 25b. Both the first pneumatic gripper 25c and the second pneumatic gripper 25d are used to clamp the rotor.

[0038] The controller 26 preferably uses a PLC, and is electrically connected to the translation drive mechanism 23, the lifting drive mechanism 24, and the clamping assembly 25. The controller 26 outputs control signals to the translation drive mechanism 23, the lifting drive mechanism 24, and the clamping assembly 25, respectively, so that the translation drive mechanism 23, the lifting drive mechanism 24, and the clamping assembly 25 perform their respective operations.

[0039] The working process of this utility model is as follows: S1, the controller 26 controls the lifting drive mechanism 24 to work and drive the clamping assembly 25 to descend in order to feed the rotor that has completed the turning of the front shaft section 1. After the clamping assembly 25 reaches the required position, the controller 26 controls the first pneumatic gripper 25c to clamp the claw-shaped magnetic pole 3 of the rotor. Then the controller 26 controls the lifting drive mechanism 24 to work and drive the clamping assembly 25 to rise, and the clamping assembly 25 lifts the rotor.

[0040] S2, when the clamping assembly 25 rises to the required position, the controller 26 controls the lifting drive mechanism 24 to stop working and controls the translation drive mechanism 23 to work. The translation drive mechanism 23 moves laterally along the truss 22. When the clamping assembly 25 holding the rotor is above the rotor front shaft section cutting residual iron filings removal device of this utility model, the controller 26 controls the translation drive mechanism 23 to stop working and controls the lifting drive mechanism 24 to work to drive the clamping assembly 25 to descend. When it descends to the point where the front shaft section 1 is aligned with the clearance hole 12, the controller 26 controls the lifting drive mechanism 24 to stop working. Subsequently, the controller 26 controls the translation drive mechanism 23 to work and the translation drive mechanism 23 moves laterally along the truss 22, so that the front shaft section 1 enters the clearance hole 12 and reaches the required position. Then, the controller 26 controls the translation drive mechanism 23 to stop working, so that the rotor is kept in the current position and the front shaft section 1 is kept in the clearance hole 12.

[0041] S3, the controller 26 controls the linear driver 20 to work. The linear driver 20 drives the support sleeve 17 to feed into the annular cavity 16a through the second connecting plate 21, so that the support sleeve 17 enters the annular cavity 16a. Since the magnet 18 is installed inside the support sleeve 17, after the magnet 18 enters the annular cavity 16a along with the support sleeve 17, the magnet 18 surrounds the inner cylinder 16. Under the magnetic force of the magnet 18, the iron filings on the surface of the front axle section 1 are transferred and attached to the hole wall of the relief hole 12, thereby removing the iron filings on the surface of the front axle section 1.

[0042] S4, the controller 26 controls the translation drive mechanism 23 to work. The translation drive mechanism 23 moves laterally backward along the truss 22, causing the front axle section 1 to exit the clearance hole 12. When the translation drive mechanism 23 moves to the required position, the controller 26 controls the translation drive mechanism 23 to stop working. Then the controller 26 controls the lifting drive mechanism 24 to work, driving the clamping assembly 25 to rise. After the clamping assembly 25 lifts the rotor to the required position, the controller 26 controls the lifting drive mechanism 24 to stop working. Then the controller 26 controls the translation drive mechanism 23 to work. The translation drive mechanism 23 moves laterally along the truss 22 to above the lathe used for machining the rear axle section 2 and then stops working. Then the controller 26 controls the lifting drive mechanism 24 to work. The lifting drive mechanism 24 drives the clamping assembly 25 to descend with the rotor to the required position.

[0043] S5. If it is necessary to clean the iron filings on the inner wall of the clearance hole 12, the iron filings attached to the wall of the clearance hole 12 are kept in place due to the magnetic force of the magnet 18. Therefore, the first step in cleaning the iron filings on the inner wall of the clearance hole 12 is to remove the magnetic force generated by the magnet 18 on the iron filings. At this time, the linear driver 20 is controlled by the controller 26. The linear driver 20 drives the support sleeve 17 to exit the annular cavity 16a through the second connecting plate 21. The magnet 18 exits the annular cavity 16a along with the support sleeve 17. In the absence of magnetic force around the inner cylinder 16, the iron filings on the inner wall of the clearance hole 12 fall into the inner cylinder 16. A vacuum cleaner is used in conjunction with the clearance hole 12 to suck out the iron filings that have fallen into the inner cylinder 16.

Claims

1. A device for removing residual iron filings from the front shaft section of a rotor, characterized in that, include: Support (11); Iron chip baffle assembly, the iron chip baffle assembly is mounted on the support (11), and the iron chip baffle assembly is provided with a clearance hole (12) for the rotor front shaft section (1) to be inserted. When combined with the chip blocking assembly, the chips on the surface of the front axle section (1) located in the relief hole (12) are transferred and attached to the magnetic suction assembly on the wall of the relief hole (12). A drive assembly that causes the magnetic attraction component to engage or disengage from the iron filings blocking component, wherein the drive assembly is fixed to the magnetic attraction component.

2. The device for removing residual iron filings from the front shaft section of a rotor according to claim 1, characterized in that, The scrap blocking assembly includes: Support plate (13) is fixed to support (11), and a first through hole (13a) is provided on support plate (13). The outer cylinder (14) is fixed to the support plate (13) at one end, and the inner hole on the outer cylinder (14) is engaged with the first through hole (13a). The first connecting plate (15) is fixed to the outer cylinder (14), and the first connecting plate (15) is provided with a second through hole (15a). The inner cylinder (16) is located inside the outer cylinder (14). After the inner cylinder (16) is fixed to the first connecting plate (15), an annular cavity (16a) for cooperating with the magnetic suction assembly is formed between the inner cylinder (16) and the outer cylinder (14). The inner hole of the inner cylinder (16) cooperates with the second through hole (15a) to form the clearance hole (12).

3. The device for removing residual iron filings from the front shaft section of a rotor according to claim 1, characterized in that, The magnetic suction assembly includes a support sleeve (17) and a magnet (18). The magnet (18) is located inside the support sleeve (17) and cooperates with the support sleeve (17). When the magnet (18) is combined with the iron filings blocking assembly, the iron filings on the surface of the front axle section (1) in the relief hole (12) are transferred and attached to the wall surface of the relief hole (12).

4. The device for removing residual iron filings from the front shaft section of a rotor according to claim 3, characterized in that, The magnetic suction assembly also includes a pressure block (19), and a limiting plate (17a) is provided on the support sleeve (17). The magnet (18) is sandwiched between the limiting plate (17a) and the pressure block (19).

5. The device for removing residual iron filings from the front shaft section of a rotor according to claim 1, characterized in that, The drive assembly includes a linear driver (20) and a second connecting plate (21). The linear driver (20) is mounted on the support (11). The second connecting plate (21) is fixed to the output end of the linear driver (20) and is also fixed to the magnetic suction assembly.

6. A device for removing residual iron filings from the front shaft section of a rotor according to any one of claims 1-5, characterized in that, It also includes an automatic transfer mechanism for automatically transferring the rotor, the automatic transfer mechanism comprising: Truss (22); A translation drive mechanism (23) that moves laterally along the truss (22) is connected to the truss (22); A lifting drive mechanism (24) that moves up and down along the truss (22) is mounted on a translation drive mechanism (23); The clamping assembly (25) is fixed to the lifting drive mechanism (24); The controller (26) is electrically connected to the translation drive mechanism (23), the lifting drive mechanism (24), and the clamping assembly (25), respectively.

Images