Device for removing residual scrap iron during cutting of front shaft section of rotor

Abstract

The invention discloses a device for removing residual scrap iron during cutting of a front shaft section of a rotor. The device comprises a support; the scrap iron blocking assembly is installed on the support, and the scrap iron blocking assembly is provided with a receding hole allowing the front shaft section of the rotor to be inserted therein; when the magnetic attraction assembly is combined with the scrap iron blocking assembly, scrap iron located on the surface of the front shaft section in the receding hole is transferred and attached to the hole wall face of the receding hole; and the driving assembly is used for driving the magnetic attraction assembly to be combined with or separated from the scrap iron blocking assembly and is fixed to the magnetic attraction assembly. According to the invention, residual scrap iron on the front shaft section of the rotor can be cleaned, and the situation that the machining precision of the rotor is influenced by interference of the scrap iron on the front shaft section when the front shaft section is clamped in the next working procedure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of machining of motor rotors, and particularly relates to a device for removing cutting residual iron chips from the front shaft section of a rotor. Background Art

[0002] ‌ A claw-pole rotor is a specially designed rotor structure, which is widely used in alternators. The main feature of the claw-pole rotor is that its stator core adopts an axial segmented design, and the left and right cooperate to form claw-shaped magnetic poles. This design enables the alternator to have advantages such as high torque density, simple structure, and low manufacturing cost. In a claw-pole rotor, as Figure 1 shown, the rotor shaft passes through the claw-shaped magnetic poles and is fixed to the claw-shaped magnetic poles 3. The claw-shaped magnetic poles 3 divide the rotor shaft into a front shaft section 1 and a rear shaft section 2. To make the claw-pole rotor of the alternator meet the graphic design requirements, it is necessary to perform turning machining on the circumferential surfaces of the front shaft section 1, the rear shaft section 2, and the claw-shaped magnetic poles 3. The machining sequence is as follows: 1. Turn the circumferential surface of the front shaft section 1 at the first turning station.

[0003] 2. The automatic truss picks up the claw-pole rotor located at the first turning station, and then transfers the claw-pole rotor to the second turning station through the automatic truss.

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

[0005] In the second turning station, the lathe clamps and positions the front shaft section 1 machined at the first turning station. Therefore, it is required that there be no iron chip residue on the surface of the front shaft section 1 after turning to avoid affecting the clamping accuracy of the claw-pole rotor at the second turning station. In the case of poor clamping accuracy, it will cause the machining accuracy of the rear shaft section 2 and the claw-shaped magnetic poles 3 to be affected, and in severe cases, it will cause the rotor to be scrapped. Since the workpiece is transferred by an automatic truss, there is currently no corresponding means to remove the residual iron chips on the front shaft section. Therefore, it is necessary to design a device to remove the residual iron chips on the front shaft section. Summary of the Invention

[0006] The present invention provides a device for removing cutting residual iron chips from the front shaft section of a rotor. The present invention can clean the residual iron chips on the front shaft section of the rotor, and avoid the influence of the iron chips on the front shaft section on the rotor machining accuracy during the clamping of the next process.

[0007] The technical solution for solving the above technical problems is as follows: A device for removing cutting residual iron chips from the front shaft section of a rotor, comprising: A support; The iron filings partition assembly is installed on the support, and a relief hole for inserting the front shaft section of the rotor is provided on the iron filings partition assembly; A magnetic attraction assembly that transfers and adheres the iron filings on the surface of the front shaft section located in the relief hole to the wall surface of the relief hole when combined with the iron filings partition assembly; A driving assembly that drives the magnetic attraction assembly to be combined with or separated from the iron filings partition assembly, and the driving assembly is fixed to the magnetic attraction assembly.

[0008] Further, the iron filings partition assembly includes: A support plate fixed to the support, and a first through hole is provided on the support plate; An outer cylinder, one end of the outer cylinder is fixed to the support plate, and the inner hole on the outer cylinder is matched with the first through hole; A first connecting plate fixed to the outer cylinder, and a second through hole is provided on the first connecting plate; An inner cylinder located inside the outer cylinder. After the inner cylinder is fixed to the first connecting plate, an annular cavity for cooperating with the magnetic attraction assembly is formed between the inner cylinder and the outer cylinder, and the inner hole of the inner cylinder is matched with the second through hole and forms the relief hole.

[0009] Further, the magnetic attraction assembly includes a support sleeve and a magnet. The magnet is located inside the support sleeve and is matched with the support sleeve. When the magnet is combined with the iron filings partition assembly, the iron filings on the surface of the front shaft section located in the relief hole are transferred and adhered to the wall surface of the relief hole.

[0010] Further, the magnetic attraction assembly further includes a pressing block. A limiting plate is provided on the support sleeve, and the magnet is clamped between the limiting plate and the pressing block.

[0011] Further, the driving assembly includes a linear actuator and a second connecting plate. The linear actuator is installed on the support, the second connecting plate is fixed to the output end of the linear actuator, and the second connecting plate is also fixed to the magnetic attraction assembly.

[0012] Further, it further includes an automatic transfer mechanism for automatically transferring the rotor. The automatic transfer mechanism includes: A truss; A translation driving mechanism that moves horizontally along the truss, and the translation driving mechanism is connected to the truss; A lifting driving mechanism that moves up and down along the truss, and the lifting driving mechanism is fixed to the translation driving mechanism; A clamping assembly fixed to the lifting driving mechanism.

[0013] A controller, which is electrically connected to the translation driving mechanism, the lifting driving mechanism, and the clamping assembly respectively.

[0014] The present invention is applied to the automatic turning process of the generator rotor. After the front shaft section of the rotor is turned and taken out from the lathe, it is transferred to the next process for turning the rear shaft section and claw-shaped magnetic poles through an automatic transfer mechanism. Before the turning process, the automatic transfer mechanism first puts the front shaft section of the rotor into the clearance hole of the iron chip barrier component, and makes the magnetic attraction component cooperate with the iron chip barrier component. The magnetic force generated by the magnetic attraction component transfers the iron chips on the surface of the front shaft section and adheres to the wall surface of the clearance hole, thereby removing the iron chips on the surface of the front shaft section, so that the clamping accuracy is guaranteed when the front shaft section is clamped in the next processing process of the rear shaft section, avoiding poor product size caused by interference of iron chips on the front shaft section during the turning of the rear shaft section. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a three-dimensional diagram of the device for removing residual iron chips from cutting the rotor front shaft segment of the present invention.

[0017] Figure 3 This is a top view of the device for removing residual iron chips from cutting the rotor front shaft segment of the present invention.

[0018] Figure 4 A three-dimensional diagram of the chip barrier assembly.

[0019] Figure 5 A cross-sectional view of the chip barrier assembly.

[0020] Figure 6 A cross-sectional view of the support sleeve.

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

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

[0023] Symbols in the accompanying drawings: Front axle section 1, rear axle section 2, claw-shaped magnetic poles 3.

[0024] The support 11, the clearance hole 12, the support plate 13, the first through hole 13a, the outer cylinder 14, the first connecting plate 15, the second through hole 15a, the inner cylinder 16, the annular cavity 16a, the end cover 16b, the support sleeve 17, the limit plate 17a, the first clearance hole 17b, the connecting seat 17c, the magnet 18, the pressure block 19, the linear drive 20, the second connecting plate 21, the truss 22, the translation drive mechanism 23, the lifting drive mechanism 24, the clamping assembly 25, the connecting seat 25a, the rotating cylinder 25b, the first pneumatic clamp 25c, the second pneumatic clamp 25d, and the controller 26. DETAILED DESCRIPTION

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

[0026] As Figures 1 to 8 shown, a device for removing cutting residual iron chips from the front shaft section of a rotor of the present invention includes a support 11, an iron chip partition component, a magnetic attraction component, and a driving component. The following will describe each part and the relationship between them in detail.

[0027] The iron chip partition component is installed on the support 11. The support 11 includes an L-shaped seat 11a and a support plate 11b, and the support plate 11b is fixed to the L-shaped seat 11a.

[0028] The iron chip partition component is provided with a relief hole 12 for the insertion of the front shaft section 1 of the rotor. The iron chip partition component 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 is provided with a first through hole 13a. After one end of the outer cylinder 14 is fixed to the support plate 13, the inner hole on the outer cylinder 14 cooperates 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. 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 attraction component is formed between the inner cylinder 16 and the outer cylinder 14. After the magnetic attraction component passes through the first through hole 13a and enters the annular cavity 16a, the magnetic attraction component surrounds the inner cylinder 16. The inner cylinder 16 and the first connecting plate 15 can be integrally formed or fixed together by welding. The inner hole of the inner cylinder 16 cooperates with the second through hole 15a to form the relief hole 12, and 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 cover 16b is provided at one end of the inner cylinder 16. The end cover 16b closes the opening at one end of the inner cylinder 16. When the magnetic attraction component withdraws from the annular cavity 16a, the end cover 16b can block the iron chips adsorbed on the inner wall of the relief hole 12 to prevent the iron chips from being attracted by the magnetic attraction component to the outside of the relief hole 12 as the magnetic attraction component withdraws, so that the iron chips remain in the relief hole 12.

[0031] When the magnetic attraction component is combined with the iron chip partition component, the iron chips on the surface of the front shaft section 1 located in the relief hole 12 are transferred and adhered to the wall surface of the relief hole 12. In the present invention, the magnetic attraction component includes a support sleeve 17 and a magnet 18. The support sleeve 17 is a cylinder, 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 chip partition component, the iron chips on the surface of the front shaft section 1 located in the relief hole 12 are transferred and adhered to the wall surface of the relief hole 12. The magnet 18 is annular, and the magnetic force of the magnet 18 generates a suction force on the iron chips on the surface of the front shaft section 1, causing the iron chips on the circumferential surface of the front shaft section 1 to transfer to the magnet 18. Since the inner cylinder 16 is spaced between the magnet 18 and the front shaft section 1, when the iron chips transfer to the magnet 18, they can only adhere to the wall surface of the relief hole 12 under the action of the magnetic force.

[0032] Since the magnet 18 is located inside the support sleeve 17, when the support sleeve 17 moves, it is necessary to make the magnet 18 move integrally with the support sleeve 17, that is, there should be no relative movement between the magnet 18 and the support sleeve 17. Therefore, it is necessary to make the magnet 18 and the support sleeve 17 become one body. In this embodiment, the preferred method is: the magnetic attraction component further includes a pressing block 19. The support sleeve 17 is provided with a limiting plate 17a. The limiting plate 17a is located at one end of the support sleeve 17, and the limiting plate 17a is provided with a first relief hole 17b when combined with the iron chip partition component. The magnet 18 is clamped between the limiting plate 17a and the pressing block 19, that is, an axial force is applied to the pressing block 19 to make the pressing block 19 move towards the inside of the support sleeve 17. The pressing block 19 generates a thrust on the magnet 18, and finally the magnet 18 is clamped between the limiting plate 17a and the pressing block 19. In addition to the above pressing method, the magnet 18 and the limiting plate 17a can also be fastened with screws.

[0033] As the front shaft section 1 is inserted into the relief hole 12 multiple times to remove the iron chips on the surface of the front shaft section 1, the iron chips adhered to the inner wall surface of the relief hole 12 will increase. Therefore, it is necessary to clean the iron chips on the inner wall surface of the relief hole 12. Due to the existence of the magnetic force of the magnet 18, the iron chips adhered to the wall surface of the relief hole 12 are in a holding state. Therefore, the primary task of cleaning the iron chips is to remove the magnetic force generated by the magnet 18 on the iron chips. Therefore, in this embodiment, a driving component is provided. The driving component is fixed to the magnetic attraction component. Through the driving component, the magnetic attraction component can be combined with the iron chip partition component, or the magnetic attraction component can be separated from the iron chip partition component through the driving component, so as to select whether to generate magnetic force on the iron chips as needed.

[0034] In this embodiment, the driving component includes a linear driver 20 and a second connecting plate 21. The linear driver 20 is installed on the support 11, the second connecting plate 21 is fixed to the output end of the linear driver 20, and the second connecting plate 21 is also fixed to the magnetic attraction component. The linear driver 20 includes a support base and a linear driving component. The linear driving component is fixed on the support base. The linear driving component can be a cylinder, a hydraulic cylinder, an 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 plays a limiting role on the pressing block 19, so that the magnet 18 is stably clamped between the limiting plate 17a and the pressing block 19.

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

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

[0037] The clamping component 25 is fixed to the lifting driving mechanism 24. In this embodiment, the clamping component 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 driving 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. 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 is preferably 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 corresponding operations.

[0039] The working process of the present invention is as follows: S1, the controller 26 controls the lifting drive mechanism 24 to drive the clamping assembly 25 to descend to feed the rotor that has completed the turning of the front axle segment 1. After the clamping assembly 25 reaches the required position, the controller 26 controls the first pneumatic clamp 25c to clamp the claw-shaped magnetic pole 3 of the rotor. Then the controller 26 controls the lifting drive mechanism 24 to 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, the controller 26 controls the translation drive mechanism 23 to work, and the translation drive mechanism 23 moves laterally along the truss 22. When the clamping assembly 25 holding the rotor is located above the device for removing residual iron chips from the rotor front shaft segment cutting of the present invention, the controller 26 controls the translation drive mechanism 23 to stop working, and the controller 26 controls the lifting drive mechanism 24 to drive the clamping assembly 25 down. When it descends to the position where the front shaft segment 1 is aligned with the clearance hole 12, the controller 26 controls the lifting drive mechanism 24 to stop working, and then 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 segment 1 enters the clearance hole 12 and reaches the required position. The controller 26 controls the translation drive mechanism 23 to stop working, so that the rotor remains in the current position and the front shaft segment 1 remains in the clearance hole 12.

[0041] S3, the controller 26 controls the linear drive 20 to work, and the linear drive 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 in the support sleeve 17, after the magnet 18 enters the annular cavity 16a together 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 shaft segment 1 are transferred and attached to the wall surface of the hole 12, thereby removing the iron filings on the surface of the front shaft segment 1.

[0042] S4, the controller 26 controls the translation drive mechanism 23 to work, and the translation drive mechanism 23 retreats laterally along the truss 22, so that the front axle segment 1 exits the clearance hole 12. When the translation drive mechanism 23 retreats to the required position, the controller 26 stops the translation drive mechanism 23, and then the controller 26 controls the lifting drive mechanism 24 to work and drive 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, and the translation drive mechanism 23 advances laterally along the truss 22 to above the lathe for processing the rear axle segment 2 and stops working. Then the controller 26 controls the lifting drive mechanism 24 to work, and the lifting drive mechanism 24 drives the clamping assembly 25 to descend to the required position with the rotor.

[0043] S5. If it is necessary to clean the iron filings on the inner wall of the clearance hole 12, due to the magnetic force of the magnet 18, the iron filings attached to the wall of the clearance hole 12 are kept in a maintained state. Therefore, the first task of 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 drive 20 is controlled by the controller 26. The linear drive 20 drives the support sleeve 17 to withdraw from the annular cavity 16a through the second connecting plate 21. The magnet 18 withdraws from the annular cavity 16a together 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 fall into the inner cylinder 16.

Claims

1. A device for removing cutting residual iron chips from the front shaft section of a rotor, characterized in that, Comprising: A support (11); An iron filings partition assembly, which is installed on the support (11) and is provided with a relief hole (12) for the front shaft section (1) of the rotor to be inserted; A magnetic attraction assembly that, when combined with the iron filings partition assembly, transfers the iron filings on the surface of the front shaft section (1) located in the relief hole (12) and adheres them to the wall surface of the relief hole (12); A driving assembly that drives the magnetic attraction assembly to be combined with or separated from the iron filings partition assembly, and the driving assembly is fixed to the magnetic attraction assembly.

2. The chip removal device for the cutting residue of the front shaft section of the rotor according to claim 1, wherein, The iron filings partition assembly includes: A support plate (13), the support plate (13) is fixed to the support (11), and the support plate (13) is provided with a first through hole (13a); An outer cylinder (14), after one end of the outer cylinder (14) is fixed to the support plate (13), the inner hole on the outer cylinder (14) cooperates with the first through hole (13a); A first connecting plate (15), 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); An inner cylinder (16), 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 attraction assembly is formed between the inner cylinder (16) and the outer cylinder (14), and the inner hole of the inner cylinder (16) cooperates with the second through hole (15a) and forms the relief hole (12).

3. The chip removal device for the cutting residue of the front shaft section of the rotor according to claim 1, wherein, The magnetic attraction 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), and when the magnet (18) is combined with the iron filings partition assembly, the iron filings on the surface of the front shaft section (1) located in the relief hole (12) are transferred and adhered to the wall surface of the relief hole (12).

4. The chip removal device for the cutting residue of the front shaft section of the rotor according to claim 3, characterized in that, The magnetic attraction assembly further includes a pressing block (19), a limiting plate (17a) is provided on the support sleeve (17), and the magnet (18) is clamped between the limiting plate (17a) and the pressing block (19).

5. The chip removal device for the cutting residue of the front shaft section of the rotor according to claim 1, wherein, The driving assembly includes a linear actuator (20) and a second connecting plate (21), the linear actuator (20) is installed on the support (11), the second connecting plate (21) is fixed to the output end of the linear actuator (20), and the second connecting plate (21) is also fixed to the magnetic attraction assembly.

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

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