Motor housing welding tool
The fixing mechanism consisting of the first and second turntables, combined with the rubber pads of the slide bar and clamping plate, solves the problem of loosening during the welding process of the motor housing, achieving stable clamping and precise welding, and improving the ease of use and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING HONGDA ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-19
AI Technical Summary
In existing motor housing welding fixtures, the limiting plate clamps are not secure enough, causing the motor housing to loosen during the welding process and affecting welding accuracy.
The device employs a fixing mechanism consisting of a first turntable and a second turntable, combined with a slide bar and a clamping plate. The clamping plate is equipped with a rubber pad, and the clamping plate moves synchronously through a motor drive. This increases friction to fix the motor housing, and the device's stability and flexibility are improved through a lifting mechanism and auxiliary rollers.
It achieves a stable clamping of the motor housing, reduces loosening, improves welding accuracy and ease of use of the equipment, and enhances the height adjustment and protection functions of the equipment.
Smart Images

Figure CN224373276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor housing welding technology, specifically a motor housing welding fixture. Background Technology
[0002] Motor housing welding is one of the key processes in motor manufacturing. It is mainly used to connect the various components of the motor housing (such as the housing, end cover, flange, etc.) into a whole by welding. The welding quality directly affects the motor's sealing performance, strength and service life.
[0003] Upon investigation, a Chinese utility model patent discloses a welding fixture for motor housing (publication number: CN220480718U), which includes a worktable, a connecting block fixedly connected to the upper side of the worktable, a welding head fixedly connected to the lower side of the connecting block, a placement platform provided on the upper side of the worktable, a cylinder fixedly connected to the upper side of the placement platform, a limit plate fixedly connected to the output shaft of the cylinder, and a lifting mechanism provided on the lower side of the worktable, the lifting mechanism including a base plate provided on the lower side of the worktable.
[0004] In the aforementioned patent, after the motor housing is placed on the placement platform, two cylinders are activated to drive two limiting plates to move toward the motor housing, thereby fixing the motor housing. However, using two limiting plates to fix the motor housing may result in the motor housing becoming loose during the welding process due to insufficient clamping, which in turn affects the welding accuracy.
[0005] Therefore, this utility model provides a welding fixture for motor housing to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This utility model provides a welding fixture for motor housing, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for motor housing, including a work plate, a welding machine is provided on the top of the work plate, a rotating groove is provided on the work plate, a fixing mechanism is provided inside the rotating groove, and a lifting mechanism is provided at the bottom of the work plate.
[0010] The fixing mechanism includes a first turntable, the side surface of which is in contact with the inner wall of the groove. A second turntable is rotatably connected to the bottom of the first turntable. A sliding groove is formed on the first turntable, and an extrusion groove is formed on the second turntable. A slide bar is slidably connected inside the sliding groove. A first connecting post is fixedly connected to the bottom of the slide bar and extends into the interior of the extrusion groove. A second connecting post is fixedly connected to the top of the slide bar and extends into the top of the first turntable. A clamping plate is fixedly connected to the top of the second connecting post, and a rubber pad is fixedly connected to the inner wall of the clamping plate.
[0011] As a preferred technical solution of this application, a connecting strip is fixedly connected to the bottom of the first turntable, a toothed disc is fixedly connected to the end of the connecting strip away from the first turntable, a first motor is fixedly connected to the top of the toothed disc, and the output end of the first motor is fixedly connected to the bottom of the second turntable.
[0012] As a preferred technical solution of this application, a second motor is fixedly connected to the bottom of the working plate, and a gear is fixedly connected to the output end of the second motor, the gear meshing with the gear plate.
[0013] As a preferred technical solution of this application, a limiting ring is fixedly connected to the top of the first turntable, the bottom of the limiting ring is in contact with the top of the work plate, an auxiliary frame is fixedly connected to the bottom of the work plate, an auxiliary groove is provided on the upper part of the auxiliary frame, and several rollers are rotatably connected inside the auxiliary groove, and the side surface of each roller is in contact with the side surface of the first turntable.
[0014] As a preferred technical solution of this application, the lifting mechanism includes an electric push rod, the movable end of which is fixedly connected to a lifting plate, and the top of the lifting plate is fixedly connected to a support column, the top of which is fixedly connected to the bottom of the working plate.
[0015] As a preferred technical solution of this application, the bottom end of the electric push rod is fitted with an anti-slip sleeve, and a protective frame is fixedly connected between the working plate and the lifting plate.
[0016] (III) Beneficial Effects
[0017] This utility model has a simple structure and is easy to use. Through the arrangement of the first turntable, the second turntable, the slide bar, the clamping plate and the rubber pad, multiple arc-shaped clamping plates can move synchronously, thereby fixing the motor housing. The presence of the rubber pad can increase the friction, so that the clamping plate can firmly fix the motor housing and reduce the possibility of the motor housing becoming loose. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a welding fixture for an electric motor housing;
[0019] Figure 2 This is a schematic diagram of the installation of the first turntable in a welding fixture for an electric motor housing;
[0020] Figure 3 This is a schematic diagram of the installation of the second turntable in a welding fixture for an electric motor housing;
[0021] Figure 4 This is a cross-sectional view of the working plate in a welding fixture for an electric motor housing;
[0022] Figure 5 This is a cross-sectional view of the first turntable in a welding fixture for an electric motor housing;
[0023] Figure 6 for Figure 2 Enlarged view of point A in the image.
[0024] In the picture:
[0025] 1. Working plate; 2. Welding machine; 3. Rotary groove; 4. First turntable; 5. Second turntable; 6. First connecting column; 7. Sliding bar; 8. Second connecting column; 9. Clamping plate; 10. Sliding groove; 11. Extrusion groove; 12. Limiting ring; 13. Connecting bar; 14. Gear plate; 15. First motor; 16. Second motor; 17. Gear; 18. Auxiliary frame; 19. Auxiliary groove; 20. Roller; 21. Support column; 22. Lifting plate; 23. Electric push rod; 24. Anti-slip sleeve; 25. Protective frame; 26. Rubber pad. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] This utility model provides a welding fixture, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, it includes a work plate 1, a welder 2 is provided on the top of the work plate 1, a rotating groove 3 is provided on the work plate 1, a fixing mechanism is provided inside the rotating groove 3, and a lifting mechanism is provided at the bottom of the work plate 1.
[0028] The fixing mechanism includes a first turntable 4, the side surface of which is in contact with the inner wall of the rotating groove 3. A second turntable 5 is rotatably connected to the bottom of the first turntable 4. A sliding groove 10 is provided on the first turntable 4, and an extrusion groove 11 is provided on the second turntable 5. A slide bar 7 is slidably connected inside the sliding groove 10. A first connecting post 6 is fixedly connected to the bottom of the slide bar 7 and extends into the interior of the extrusion groove 11. A second connecting post 8 is fixedly connected to the top of the slide bar 7 and extends into the top of the first turntable 4. A clamping plate 9 is fixedly connected to the top of the second connecting post 8, and a rubber pad 26 is fixedly connected to the inner wall of the clamping plate 9.
[0029] A connecting strip 13 is fixedly connected to the bottom of the first turntable 4. A toothed disc 14 is fixedly connected to the end of the connecting strip 13 away from the first turntable 4. A first motor 15 is fixedly connected to the top of the toothed disc 14. The output end of the first motor 15 is fixedly connected to the bottom of the second turntable 5.
[0030] After the first motor 15 is started, the output end of the first motor 15 directly drives the second turntable 5 to rotate. When the second turntable 5 rotates, the inner wall of the extrusion groove 11 will squeeze the first connecting post 6, thereby forcing the first connecting post 6 to drive the slide bar 7 to move inside the slide groove 10. When the slide bar 7 moves, it can drive the clamping plate 9 to move through the second connecting post 8. The clamping plate 9 is set to fix the motor housing. Multiple clamping plates 9 are arranged in a circular array. Each clamping plate 9 is provided with a corresponding first connecting post 6, slide bar 7 and second connecting post 8. Therefore, all clamping plates 9 can move synchronously, thereby fixing the motor housing.
[0031] The clamping plate 9 is arc-shaped. This design is to increase the contact area between the clamping plate 9 and the motor housing. In addition, a rubber pad 26 is fixed to the inner wall of each clamping plate 9. When the clamping plate 9 fixes the motor housing, the rubber pad 26 can buffer the two, reducing the possibility of wear and deformation of the motor housing. On the other hand, it can increase the friction between the two, so that the clamping plate 9 can firmly fix the motor housing.
[0032] Furthermore, to facilitate welding of other parts of the motor housing by workers, such as... Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, a second motor 16 is fixedly connected to the bottom of the working plate 1, and a gear 17 is fixedly connected to the output end of the second motor 16. The gear 17 meshes with the gear plate 14.
[0033] The top of the first turntable 4 is fixedly connected to a limiting ring 12, the bottom of the limiting ring 12 is in contact with the top of the working plate 1, and the bottom of the working plate 1 is fixedly connected to an auxiliary frame 18. An auxiliary groove 19 is provided on the upper part of the auxiliary frame 18, and several rollers 20 are rotatably connected inside the auxiliary groove 19. The side surface of each roller 20 is in contact with the side surface of the first turntable 4.
[0034] The gear plate 14 is integrated with the first turntable 4 via the connecting strip 13. When other parts of the motor housing need to be welded, the second motor 16 can be started. The output end of the second motor 16 can directly drive the gear 17 to rotate. When the gear 17 rotates, it can drive the gear plate 14 to rotate, thereby causing the first turntable 4 to rotate with the motor housing, so that the workers can weld other parts of the motor housing.
[0035] The setting of the limiting ring 12 reduces the possibility of the first turntable 4 falling off the rotating groove 3. When the first turntable 4 rotates, the roller 20 will also rotate due to friction to assist the first turntable 4 in rotating, effectively reducing the friction force when the first turntable 4 rotates and improving the smoothness of the first turntable 4 rotation.
[0036] It should be noted that, in order to achieve adjustable height of the equipment, such as Figure 1 , Figure 2 and Figure 4 As shown, the lifting mechanism includes an electric push rod 23, the movable end of which is fixedly connected to a lifting plate 22, and the top of the lifting plate 22 is fixedly connected to a support column 21, the top of which is fixedly connected to the bottom of the working plate 1.
[0037] The bottom end of the electric push rod 23 is fitted with an anti-slip sleeve 24, and a protective frame 25 is fixedly connected between the working plate 1 and the lifting plate 22.
[0038] Four electric push rods 23 are provided, which are distributed at the four corners of the bottom of the lifting plate 22 and can work synchronously. When the electric push rods 23 are working, their movable ends can directly drive the lifting plate 22 to move. When the lifting plate 22 moves, it can drive the working plate 1 to move, thereby realizing the height adjustment of the equipment. When using the equipment, the operator can adjust it according to his own height.
[0039] The anti-slip sleeve 24 increases the friction between the equipment and the ground, improving the stability of the equipment during use. It also protects the electric push rod 23 and helps extend its service life. The protective frame 25 encloses the gear plate 14, the first motor 15, the second motor 16, and the gear 17 inside itself, providing effective protection for the staff.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A motor housing welding fixture comprising a work plate (1), characterized in that: The top of the work plate (1) is provided with a welding device (2), the work plate (1) is provided with a rotating groove (3), the interior of the rotating groove (3) is provided with a fixing mechanism, and the bottom of the work plate (1) is provided with a lifting mechanism. The fixing mechanism includes a first turntable (4), the side surface of which is in contact with the inner wall of the rotating groove (3), a second turntable (5) is rotatably connected to the bottom of the first turntable (4), a sliding groove (10) is provided on the first turntable (4), and an extrusion groove (11) is provided on the second turntable (5). A slide bar (7) is slidably connected inside the sliding groove (10), a first connecting post (6) is fixedly connected to the bottom of the slide bar (7), the first connecting post (6) extends into the interior of the extrusion groove (11), a second connecting post (8) is fixedly connected to the top of the slide bar (7), the second connecting post (8) extends into the top of the first turntable (4), a clamping plate (9) is fixedly connected to the top of the second connecting post (8), and a rubber pad (26) is fixedly connected to the inner wall of the clamping plate (9).
2. A motor housing welding fixture according to claim 1, wherein: A connecting strip (13) is fixedly connected to the bottom of the first turntable (4). A toothed disc (14) is fixedly connected to the end of the connecting strip (13) away from the first turntable (4). A first motor (15) is fixedly connected to the top of the toothed disc (14). The output end of the first motor (15) is fixedly connected to the bottom of the second turntable (5).
3. A motor housing welding fixture as set forth in claim 1 wherein: The bottom of the working plate (1) is fixedly connected to a second motor (16), and the output end of the second motor (16) is fixedly connected to a gear (17), which meshes with the gear plate (14).
4. A motor housing welding fixture as set forth in claim 3 wherein: A limiting ring (12) is fixedly connected to the top of the first turntable (4). The bottom of the limiting ring (12) is in contact with the top of the working plate (1). An auxiliary frame (18) is fixedly connected to the bottom of the working plate (1). An auxiliary groove (19) is provided on the upper part of the auxiliary frame (18). Several rollers (20) are rotatably connected inside the auxiliary groove (19). The side surface of each roller (20) is in contact with the side surface of the first turntable (4).
5. The welding fixture for a motor housing according to claim 1, characterized in that: The lifting mechanism includes an electric push rod (23), the movable end of which is fixedly connected to a lifting plate (22), the top of which is fixedly connected to a support column (21), and the top of the support column (21) is fixedly connected to the bottom of the working plate (1).
6. The welding fixture for a motor housing according to claim 5, characterized in that: The bottom end of the electric push rod (23) is fitted with an anti-slip sleeve (24), and a protective frame (25) is fixedly connected between the working plate (1) and the lifting plate (22).
Citation Information
Patent Citations
Motor shell welding tool
CN220480718U