A tooling for machining motor rotors

CN224626482UActive Publication Date: 2026-08-11SHANGHAI HELMA MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]目前电机转子在生产制造过程中,需要对叠压的钢片进行焊接,从而在原本的固定基础上进行进一步的固定,以提高其整体的连接强度和稳定性,以避免后续在运行时,因振动、离心力等原因而导致松动,通常在焊接前,会用到专门的工装来对铁芯叠片进行支撑,并在焊接过程中对其进行转动,但是传统的工装在使用时,其适用范围较窄,不方便用户对工装进行灵活调整,从而适应更多规格的铁芯叠片

Benefits of technology

[0019] To accommodate various sizes of iron core laminations, this device features a specially designed, easily adjustable clamping structure. Users first place the stacked iron core laminations securely on the bracket. Then, they activate two electric telescopic rods to move the bracket longitudinally to the desired position. Next, they loosen the set screws on both sides and adjust the position of the movable parts so that the clamping blocks at the ends of the movable parts align with one end face of the iron core lamination. Afterward, they tighten the set screws to fix the position of the movable parts. Then, the user can activate control motor one via the control module. The rotation of the double-ended screw drives the two threaded sleeves to move closer together, causing the two sets of clamping blocks to move towards the iron core lamination until the clamping blocks are firmly clamped to the end face of the iron core lamination, achieving fixation. During welding, control motor two can be activated at any time to rotate the iron core lamination according to the welding progress. This structural design allows users to adjust the height of the bracket and the position of the clamping blocks, enabling the fixture to accommodate various sizes of iron core laminations. The design is reasonable and convenient to use.

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Abstract

This utility model provides a tooling for machining motor rotors. The tooling includes a support base, on the surface of which a clamping structure and a supporting structure are mounted. The clamping structure includes a double-ended screw, with both ends of the double-ended screw rotatably connected to the bottom surface of the support base. Threaded sleeves are threadedly connected to both sides of the double-ended screw surface. Connecting brackets are fixedly connected to the surfaces of both threaded sleeves. The ends of both connecting brackets away from the threaded sleeves extend to the upper side of the support base and are fixedly connected to a supporting member. A control motor is fixedly connected to one side wall of the support base, and the output end of the control motor is fixedly connected to one end of the double-ended screw. This utility model provides a tooling for machining motor rotors that allows users to flexibly adjust the tooling, enabling it to adapt to laminations of various core specifications.
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Description

Technical Field

[0001] This utility model relates to the field of motor rotor processing, and in particular to a tooling for motor rotor processing. Background Technology

[0002] The motor rotor is the core component that enables the rotational motion of a motor. It consists of a core of stacked silicon steel sheets, conductor windings, or permanent magnets, and is supported by bearings for rotation. It outputs torque through electromagnetic interaction with the stator magnetic field, realizing the conversion of electrical energy into mechanical energy. Among them, DC motor rotors contain armature windings and commutators to maintain the torque direction, induction motor rotors are divided into squirrel-cage and wound-rotor types, while synchronous motor rotors have permanent magnets or excitation windings. They are widely used in new energy vehicles, industrial equipment, and other fields. Cleanliness and other production details affect their performance and lifespan.

[0003] Currently, during the manufacturing process of motor rotors, the stacked steel sheets need to be welded to further secure them on the original fixed basis, thereby improving the overall connection strength and stability. This is to prevent loosening due to vibration, centrifugal force, etc. during subsequent operation. Usually, special tooling is used to support the iron core laminations before welding and to rotate them during the welding process. However, traditional tooling has a narrow range of applications and is not convenient for users to flexibly adjust the tooling to adapt to more specifications of iron core laminations.

[0004] Therefore, it is necessary to provide a new tooling for machining motor rotors to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a tooling for machining motor rotors that allows users to flexibly adjust the tooling, thereby enabling it to adapt to more specifications of iron core laminations.

[0006] To solve the above-mentioned technical problems, the present invention provides a tooling for machining motor rotors, comprising: a support base, wherein a clamping structure and a support structure are mounted on the surface of the support base, the clamping structure includes a double-ended screw, both ends of the double-ended screw are rotatably connected to the bottom surface of the support base, threaded sleeves are threadedly connected to both the left and right sides of the surface of the double-ended screw, connecting brackets are fixedly connected to the surfaces of the two threaded sleeves, and the ends of the two connecting brackets away from the threaded sleeves extend to the upper side of the support base and are fixedly connected to a support member, and a control motor is fixedly connected to one side wall surface of the support base, the output end of the control motor being fixedly connected to one end of the double-ended screw;

[0007] Vertical supports are fixedly connected to the top surfaces of both support members. Rotating shafts are rotatably connected to the top ends of both vertical supports. Rotating components are fixedly connected to the relatively close ends of the two rotating shafts. Several connecting arms evenly distributed around the axis are fixedly connected to the outer circumferential surface of the rotating components. Limiting components are fixedly connected to the ends of the connecting arms. Movable components are slidably connected to the surface of the limiting components. A clamping block is fixedly connected to the end of the movable component away from the rotating component. A set screw is threaded onto the surface of the limiting components. The pressing end of the set screw abuts against the surface of the movable component on the adjacent side. A second control motor is fixedly connected to the surface of one of the vertical support members. The output end of the second control motor is fixedly connected to the end of the rotating shaft on the adjacent side.

[0008] As a further embodiment of this utility model, the support base is fixedly connected to four corners at its bottom, and mounting holes are symmetrically opened on the surface of the support feet.

[0009] With the above technical solution, before using the device, the user can open holes corresponding to the mounting holes on the external base, and then use expansion bolts and expansion nuts to fix the legs.

[0010] As a further embodiment of this utility model, the bottom surfaces of the two support members are symmetrically fixedly connected with sliders, and the top surface of the support base is symmetrically fixedly connected with guide rails. The sliders, which are distributed in the front and back, are slidably connected to the guide rails on the adjacent side.

[0011] Through the above technical solution, this device is specially designed with an adjustable clamping structure to accommodate iron core laminations of various sizes. When using it, the user first places the stacked iron core laminations stably on the bracket, then activates the two electric telescopic rods to move the bracket longitudinally to the appropriate position. Next, the user loosens the set screws on both sides and adjusts the position of the movable parts so that the clamping blocks at the ends of the movable parts can align with one end face of the iron core lamination. Then, the user tightens the set screws to fix the position of the movable parts. Next, the user can activate control motor one through the control module, which drives the two threaded sleeves on the left and right sides to move towards each other through the rotation of the double-headed screw. This causes the two sets of clamping blocks to move towards the iron core lamination until the clamping blocks are clamped onto the end face of the iron core lamination, achieving fixation. During welding, control motor two can be activated at any time according to the welding progress to rotate the iron core lamination. This structural design allows the user to adjust the height of the bracket and the position of the clamping blocks, thus enabling the fixture to accommodate iron core laminations of various sizes. The structural design is reasonable and convenient to use.

[0012] As a further embodiment of this utility model, the support structure includes two electric telescopic rods arranged in a front-to-back pattern. Both electric telescopic rods are fixedly connected to the bottom surface of the support base. The telescopic ends of both electric telescopic rods penetrate the surface of the support base and are fixedly connected to a bracket, which is located on the upper side of the support base.

[0013] With the above technical solution, users can adjust the height of the bracket according to the size of the iron core laminations, so that multiple clamping blocks can be clamped on the end face of the laminations. When performing welding operations, users need to ensure that the welding points avoid the clamping positions of the clamping blocks, thereby avoiding welding errors.

[0014] As a further embodiment of this utility model, guide grooves are provided at both the front and rear ends of the bracket, and guide members are slidably connected inside the guide grooves. The bottom of the guide members is fixedly connected to the top surface of the support base.

[0015] By using the above technical solution and by setting guide components, the bracket can achieve more stable lifting and lowering under the drive of the electric telescopic rod.

[0016] As a further embodiment of this utility model, a control module is fixedly connected to the surface of one of the support legs, and the electric telescopic rod, control motor one, and control motor two are all electrically connected to the control module.

[0017] The above technical solution, by setting up a control module, allows users to easily control various electrical components in the structure, thereby better securing the rotor core laminations.

[0018] Compared with related technologies, the tooling for machining motor rotors provided by this utility model has the following advantages:

[0019] To accommodate various sizes of iron core laminations, this device features a specially designed, easily adjustable clamping structure. Users first place the stacked iron core laminations securely on the bracket. Then, they activate two electric telescopic rods to move the bracket longitudinally to the desired position. Next, they loosen the set screws on both sides and adjust the position of the movable parts so that the clamping blocks at the ends of the movable parts align with one end face of the iron core lamination. Afterward, they tighten the set screws to fix the position of the movable parts. Then, the user can activate control motor one via the control module. The rotation of the double-ended screw drives the two threaded sleeves to move closer together, causing the two sets of clamping blocks to move towards the iron core lamination until the clamping blocks are firmly clamped to the end face of the iron core lamination, achieving fixation. During welding, control motor two can be activated at any time to rotate the iron core lamination according to the welding progress. This structural design allows users to adjust the height of the bracket and the position of the clamping blocks, enabling the fixture to accommodate various sizes of iron core laminations. The design is reasonable and convenient to use. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a tooling for machining an electric motor rotor according to the present invention;

[0022] Figure 2 This is a partial structural diagram of a tooling for machining an electric motor rotor according to the present invention. Figure 1 ;

[0023] Figure 3 This is a partial structural diagram of a tooling for machining an electric motor rotor according to the present invention. Figure 2 ;

[0024] Figure 4 This is a partial structural cross-sectional view of a tooling for machining an electric motor rotor according to the present invention.

[0025] Explanation of key symbols:

[0026] 1. Support base; 2. Clamping structure; 3. Support structure; 4. Support leg; 5. Control module; 6. Control motor one; 7. Control motor two; 8. Set screw; 9. Double-ended screw; 10. Threaded sleeve; 11. Connecting frame; 12. Mounting hole; 13. Electric telescopic rod; 14. Bracket; 15. Guide component; 16. Guide rail; 17. Slider; 18. Support component; 19. Limiting component; 20. Moving component; 21. Clamping block; 22. Vertical support; 23. Rotating component. Detailed Implementation

[0027] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a tooling for machining an electric motor rotor according to the present invention; Figure 2 This is a partial structural diagram of a tooling for machining an electric motor rotor according to the present invention. Figure 1 ; Figure 3 This is a partial structural diagram of a tooling for machining an electric motor rotor according to the present invention. Figure 2 ; Figure 4 This is a partial sectional view of a tooling for machining an electric motor rotor according to the present invention. The tooling for machining an electric motor rotor includes:

[0028] Support base 1, with clamping structure 2 and support structure 3 mounted on its surface. Clamping structure 2 includes a double-ended screw 9, with both ends of the double-ended screw 9 rotatably connected to the bottom surface of support base 1. Threaded sleeves 10 are threadedly connected to both sides of the surface of the double-ended screw 9. Connecting brackets 11 are fixedly connected to the surfaces of the two threaded sleeves 10. The ends of the two connecting brackets 11 away from the threaded sleeves 10 extend to the upper side of support base 1 and are fixedly connected to support members 18. A control motor 6 is fixedly connected to one side wall surface of support base 1. The output end of the control motor 6 is fixedly connected to one end of the double-ended screw 9.

[0029] Vertical supports 22 are fixedly connected to the top surfaces of the two support members 18. Rotating shafts are rotatably connected to the top ends of the two vertical supports 22. Rotating members 23 are fixedly connected to the relatively close ends of the two rotating shafts. Several connecting arms evenly distributed around the axis are fixedly connected to the outer circumferential surface of the rotating members 23. Limiting members 19 are fixedly connected to the ends of the connecting arms. Movable members 20 are slidably connected to the surface of the limiting members 19. A clamping block 21 is fixedly connected to the end of the movable members 20 away from the rotating members 23. A set screw 8 is threadedly connected to the surface of the limiting members 19. The pressing end of the set screw 8 abuts against the surface of the movable member 20 on the adjacent side. A control motor 22 is fixedly connected to the surface of one vertical support 22. The output end of the control motor 22 is fixedly connected to the end of the rotating shaft on the adjacent side.

[0030] like Figure 1-4 As shown, support legs 4 are fixedly connected to the four corners of the bottom of the support base 1, and mounting holes 12 are symmetrically opened on the surface of the support legs 4.

[0031] Before using the device, the user can drill holes corresponding to the mounting holes 12 on the external base, and then use expansion bolts and expansion nuts to fix the support legs 4.

[0032] like Figure 1-4 As shown, sliders 17 are symmetrically fixedly connected to the bottom surfaces of the two support members 18, and guide rails 16 are symmetrically fixedly connected to the top surface of the support base 1. The sliders 17, which are distributed in the front and back, are slidably connected to the guide rails 16 on the adjacent side.

[0033] To accommodate iron core laminations of various sizes, the device features a specially designed, easily adjustable clamping structure 2. During use, the user first places the stacked iron core laminations stably on the bracket 14. Then, the two electric telescopic rods 13 are activated to move the bracket 14 longitudinally to the appropriate position. Next, the set screws 8 on both sides are loosened, and the position of the movable part 20 is adjusted so that the clamping block 21 at the end of the movable part 20 aligns with one end face of the iron core lamination. The set screws 8 are then tightened to fix the position of the movable part 20. Finally, the user can activate the device via the control module 5. The first control motor 6 drives the two threaded sleeves 10 to move towards each other through the rotation of the double-headed screw 9. This causes the two sets of clamping blocks 21 to move towards the iron core laminations until the clamping blocks 21 are clamped on the end faces of the iron core laminations, thus achieving fixation. During the welding process, the second control motor 7 can be started at any time according to the welding progress to drive the iron core laminations to rotate. The above structural design allows the user to adjust the height of the bracket 14 and the position of the clamping blocks 21, so that the tooling can adapt to iron core laminations of various sizes. The structural design is reasonable and convenient to use.

[0034] like Figure 1-4 As shown, the support structure 3 includes an electric telescopic rod 13. There are two electric telescopic rods 13 arranged in a front-to-back pattern. Both electric telescopic rods 13 are fixedly connected to the bottom surface of the support base 1. The telescopic ends of both electric telescopic rods 13 penetrate the surface of the support base 1 and are fixedly connected to a bracket 14. The bracket 14 is located on the upper side of the support base 1.

[0035] Users can adjust the height of the bracket 14 according to the size of the iron core laminations so that multiple clamping blocks 21 can be clamped on the end face of the laminations. When performing welding operations, users need to ensure that the welding points avoid the clamping positions of the clamping blocks 21 to avoid welding errors.

[0036] like Figure 1-4 As shown, guide grooves are provided at both the front and rear ends of the bracket 14, and guide members 15 are slidably connected inside the guide grooves. The bottom of the guide member 15 is fixedly connected to the top surface of the support base 1.

[0037] By setting the guide component 15, the bracket 14 can achieve more stable lifting and lowering under the drive of the electric telescopic rod 13.

[0038] like Figure 1-4 As shown, a control module 5 is fixedly connected to the surface of one side of the support leg 4. The electric telescopic rod 13, the first control motor 6, and the second control motor 7 are all electrically connected to the control module 5.

[0039] By setting up control module 5, users can easily control various electrical components in the structure, thereby better securing the rotor core laminations.

[0040] The working principle of the tooling for machining an electric motor rotor provided by this utility model is as follows:

[0041] To accommodate iron core laminations of various sizes, the device features a specially designed, easily adjustable clamping structure 2. During use, the user first places the stacked iron core laminations stably on the bracket 14. Then, the two electric telescopic rods 13 are activated to move the bracket 14 longitudinally to the appropriate position. Next, the set screws 8 on both sides are loosened, and the position of the movable part 20 is adjusted so that the clamping block 21 at the end of the movable part 20 aligns with one end face of the iron core lamination. The set screws 8 are then tightened to fix the position of the movable part 20. Finally, the user can activate the device via the control module 5. The first control motor 6 drives the two threaded sleeves 10 to move towards each other through the rotation of the double-headed screw 9. This causes the two sets of clamping blocks 21 to move towards the iron core laminations until the clamping blocks 21 are clamped on the end faces of the iron core laminations, thus achieving fixation. During the welding process, the second control motor 7 can be started at any time according to the welding progress to drive the iron core laminations to rotate. The above structural design allows the user to adjust the height of the bracket 14 and the position of the clamping blocks 21, so that the tooling can adapt to iron core laminations of various sizes. The structural design is reasonable and convenient to use.

[0042] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0043] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A tooling fixture for machining an electric motor rotor, characterized in that, The system includes a support base (1), on which a clamping structure (2) and a support structure (3) are mounted. The clamping structure (2) includes a double-ended screw (9), the two ends of which are rotatably connected to the bottom surface of the support base (1). Threaded sleeves (10) are threadedly connected to both sides of the surface of the double-ended screw (9). Connecting brackets (11) are fixedly connected to the surfaces of the two threaded sleeves (10). The ends of the two connecting brackets (11) away from the threaded sleeves (10) extend to the upper side of the support base (1) and are fixedly connected to a support member (18). A control motor (6) is fixedly connected to one side wall surface of the support base (1). The output end of the control motor (6) is fixedly connected to one end of the double-ended screw (9). The top surfaces of the two support members (18) are fixedly connected to vertical supports (22), the top ends of the two vertical supports (22) are rotatably connected to rotating shafts, the relatively close ends of the two rotating shafts are fixedly connected to rotating members (23), the outer circumferential surface of the rotating members (23) is fixedly connected to several connecting arms evenly distributed around the axis, the ends of the connecting arms are fixedly connected to limiting members (19), the surface of the limiting members (19) is slidably connected to movable members (20), the end of the movable members (20) away from the rotating members (23) is fixedly connected to a clamping block (21), the surface of the limiting members (19) is threadedly connected to a set screw (8), the pressing end of the set screw (8) abuts against the surface of the movable member (20) on the adjacent side, the surface of the vertical support (22) on one side is fixedly connected to a control motor (7), the output end of the control motor (7) is fixedly connected to the end of the rotating shaft on the adjacent side.

2. The tooling for machining a motor rotor as described in claim 1, characterized in that, The support base (1) is fixedly connected to four corners of the bottom with feet (4), and mounting holes (12) are symmetrically opened on the surface of the feet (4).

3. The tooling for machining a motor rotor as described in claim 2, characterized in that, The bottom surfaces of the two support members (18) are symmetrically connected with sliders (17), and the top surfaces of the support base (1) are symmetrically connected with guide rails (16). The sliders (17) distributed in the front and back are slidably connected to the guide rails (16) on the adjacent side.

4. The tooling for machining a motor rotor as described in claim 3, characterized in that, The support structure (3) includes an electric telescopic rod (13). There are two electric telescopic rods (13) arranged in a front-to-back pattern. Both electric telescopic rods (13) are fixedly connected to the bottom surface of the support base (1). The telescopic ends of both electric telescopic rods (13) penetrate the surface of the support base (1) and are fixedly connected to a bracket (14). The bracket (14) is located on the upper side of the support base (1).

5. The tooling for machining a motor rotor as described in claim 4, characterized in that, The bracket (14) has guide grooves at both the front and rear ends. A guide member (15) is slidably connected inside the guide groove. The bottom of the guide member (15) is fixedly connected to the top surface of the support base (1).

6. The tooling for machining an electric motor rotor as described in claim 5, characterized in that, A control module (5) is fixedly connected to the surface of the support leg (4) on one side. The electric telescopic rod (13), control motor one (6) and control motor two (7) are all electrically connected to the control module (5).