Vehicle generator rotor fan blade ultrasonic welding tool
By designing ultrasonic welding tooling for vehicle generator rotor blades and using positioning pins and positioning gun sleeves to ensure vertical welding of the blades, the problem of skewed welding position is solved, and the welding quality and efficiency are improved.
Patent Information
- Application Number
- CN202422810024.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In the prior art, the welding between the rotor blades and the rotor frame of a vehicle generator has problems of deflection and instability, which affects the welding quality and consistency.
An ultrasonic welding tooling for vehicle generator rotor blades was designed, which includes a base plate, a positioning plate that can be raised and lowered, a positioning pin and a positioning holster. The positioning pin and the positioning holster ensure vertical welding of the blades, and a fixed and consistent welding position is achieved in combination with an ultrasonic welding gun.
It ensures that the ultrasonic welding gun is always in a vertical state, the welding position is fixed and not tilted, which improves the welding quality and efficiency, and the tensile strength of the weld point reaches 200N.
Smart Images
Figure CN223368457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an ultrasonic welding tool for a rotor blade of a vehicle generator. Background Art
[0002] Because vehicle generators operate continuously, the excitation windings and stator coils inside the generator are constantly energized. This current generates a significant amount of heat, so heat dissipation is essential to prevent overheating, which can damage components and reduce efficiency. Generators that utilize a dual-fan heat dissipation structure typically have two fan blades mounted on the rotor. When the generator is operating, the rotor shaft rotates, driving the fan blades to generate airflow. These blades face the outside of the generator, accelerating the discharge of high-temperature gases from the motor, thereby providing forced ventilation and cooling within the generator.
[0003] Therefore, the welding between the fan blades and the rotor frame of the generator is very important. Once the blades are not welded firmly and fall off, the blades will be broken quickly when the generator runs at high speed, causing damage to the rotor and failure of the generator.
[0004] Currently, ultrasonic welding is mostly used to weld the blades to the rotor frame, and the welding operation is completed by manually holding a welding torch. However, when welding with a manual hand-held welding torch, due to the lack of effective positioning of the rotor, the deviation of the welding torch or the rotor position will affect the welding effect, resulting in deviation of the welding position and uneven weld sizes, which affects the firmness and consistency of the welding. Utility Model Content
[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides an ultrasonic welding tool for vehicle generator rotor blades, which ensures vertical welding of the welding gun and non-deflection of the welding position.
[0006] The technical solution adopted by the utility model to solve its technical problems is: a vehicle generator rotor fan blade ultrasonic welding tool, which is used to weld and fix the connecting column of the rotor coil skeleton to the fan blade, and has a base plate, and a positioning plate that can be adjusted to rise and fall is provided above the base plate. Four through holes distributed in a rectangular shape and corresponding to the four connecting holes on the fan blade are opened on the positioning plate, and positioning pins are respectively provided in the through holes at both ends of the first diagonal of the rectangle, and a positioning gun sleeve is provided in a through hole on the second diagonal of the rectangle. The rotor to be welded is positioned between the positioning plate and the base plate, and the lower end of the positioning pin has a plug hole that is plugged into the connecting column. An ultrasonic welding gun for welding and fixing the fan blade to the connecting column is provided in the positioning gun sleeve.
[0007] In order to achieve the lifting and lowering adjustment of the positioning plate, cylinder seats are fixed at both ends of the base plate, and a lifting cylinder is installed on the cylinder seat. The piston rod end of the lifting cylinder is fixedly connected to the positioning plate to drive the positioning plate to lift and lower.
[0008] In order to realize the positioning and installation of the rotor, a positioning seat with an inner hole is fixed at the center position of the base plate, and the rear end shaft of the rotor is positioned and supported in the inner hole of the positioning seat.
[0009] Furthermore, in order to prevent the fan blades from tilting in plane, a compression sleeve is threadedly connected to the center position of the positioning plate, the front end shaft of the rotor extends into the inner hole of the compression sleeve, and the lower end of the compression sleeve presses the fan blades onto the claw pole plane of the coil frame.
[0010] The compression sleeve is connected with a locking nut, so that the compression sleeve is locked by the locking nut after the compression sleeve is adjusted into place.
[0011] The beneficial effect of the utility model is that the utility model arranges a positioning gun sleeve on the positioning plate, and prevents the fan blade plane from tilting by the positioning pin shaft, thereby ensuring that the ultrasonic welding gun is always in a vertical welding state, the welding position is fixed and consistent, and is not deflected or tilted, thereby improving the welding quality of the rotor fan blade. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0013] Figure 1 It is a structural diagram of the present utility model.
[0014] Figure 2 This is a schematic diagram of the position of the coil frame and the fan blade before welding.
[0015] Figure 3 It is a schematic diagram of the top structure of the positioning plate of the utility model.
[0016] In the figure: 1. Base plate, 2. Positioning plate, 3. Through hole, 4. Positioning pin, 5. Positioning gun holster, 6. Ultrasonic welding gun, 7. Cylinder seat, 8. Lifting cylinder, 9. Positioning seat, 10. Pressing sleeve, 11. Locking nut, 12. Rotor, 13. Coil skeleton, 14. Connecting column, 15. Fan blade, 16. Claw pole. DETAILED DESCRIPTION
[0017] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0018] like Figures 1 to 3The ultrasonic welding tool for a vehicle generator rotor blade is shown, which is used to weld and fix the connecting column 14 of the coil skeleton 13 of the rotor 12 to the blade 15; the rotor 12 includes a claw pole 16 and a coil skeleton 13 frame, the coil skeleton 13 has four connecting columns 14, and the blade 15 has four connecting holes corresponding to the connecting columns 14.
[0019] The welding tooling includes a base plate 1, a positioning plate 2 arranged above the base plate 1, and cylinder seats 7 are fixed at both ends of the base plate 1. A lifting cylinder 8 is installed on the cylinder seat 7. The piston rod end of the lifting cylinder 8 is fixedly connected to the positioning plate 2 to drive the positioning plate 2 to rise and fall.
[0020] The rotor 12 to be welded is positioned between the positioning plate 2 and the base plate 1. Specifically, a positioning seat 9 with an inner hole is fixed at the center of the base plate 1. The rear end of the rotor 12 is positioned and supported within the inner hole of the positioning seat 9. A vertically adjustable compression sleeve 10 is threadedly connected to the center of the positioning plate 2. The front end of the rotor 12 extends into the inner hole of the compression sleeve 10. The lower end of the compression sleeve 10 presses the fan blades 15 against the claw poles 16 of the coil bobbin 13. A locking nut 11 is also connected to the compression sleeve 10 on the bottom surface of the positioning plate 2. After the compression sleeve 10 is adjusted into place, the locking nut 11 is tightened to lock the compression sleeve 10.
[0021] The positioning plate 2 is provided with four through holes 3, which are distributed in a rectangular shape and correspond to the positions of the four connecting holes on the fan blade 15. A positioning pin shaft 4 is respectively provided in the through holes 3 at both ends of the first diagonal of the rectangle, and the lower end of the positioning pin shaft 4 has a plug-in hole for plugging with the connecting column 14; and a positioning gun sleeve 5 is provided in a through hole 3 on the second diagonal of the rectangle, and an ultrasonic welding gun 6 for welding and fixing the fan blade 15 to the connecting column 14 is provided in the positioning gun sleeve 5.
[0022] After the first screw thread is tightened, the second screw thread is tightened, and the second screw thread is tightened. When the second screw thread is tightened, the second screw thread is tightened, and the second screw thread is tightened.
[0023] The utility model provides a positioning gun sleeve 5 on the positioning plate 2, and the positioning pin shaft 4 prevents the plane of the fan blade 15 from tilting, thereby ensuring that the ultrasonic welding gun 6 is always in a vertical welding state, the welding position is fixed and consistent, and the tensile strength of the welding point is ≥200N, thereby improving the welding quality and work efficiency.
[0024] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. An ultrasonic welding tool for a vehicle generator rotor blade, used for welding and fixing a connecting column (14) of a coil frame (13) of a rotor (12) to a blade (15), comprising a base plate (1), and characterized by: A positioning plate (2) that can be raised and lowered is provided above the base plate (1), and four through holes (3) distributed in a rectangular shape and corresponding to the four connecting holes on the fan blade (15) are provided on the positioning plate (2). Positioning pins (4) are provided in the through holes (3) at both ends of the first diagonal of the rectangle, and a positioning gun sleeve (5) is provided in a through hole (3) on the second diagonal of the rectangle. The rotor (12) to be welded is positioned between the positioning plate (2) and the base plate (1), and the lower end of the positioning pin (4) has a plug-in hole that is plugged into the connecting column (14). An ultrasonic welding gun (6) for welding and fixing the fan blade (15) and the connecting column (14) is provided in the positioning gun sleeve (5).
2. The ultrasonic welding tool for a vehicle generator rotor blade according to claim 1, characterized in that: Cylinder seats (7) are fixed at both ends of the base plate (1), and a lifting cylinder (8) is installed on the cylinder seat (7). The piston rod end of the lifting cylinder (8) is fixedly connected to the positioning plate (2) to drive the positioning plate (2) to rise and fall.
3. The ultrasonic welding tool for a vehicle generator rotor blade according to claim 1, characterized in that: A positioning seat (9) with an inner hole is fixed at the center of the base plate (1), and the rear end shaft of the rotor (12) is positioned and supported in the inner hole of the positioning seat (9).
4. The ultrasonic welding tool for a vehicle generator rotor blade according to claim 3, characterized in that: The center position of the positioning plate (2) is threadedly connected with a compression sleeve (10), the front end shaft of the rotor (12) extends into the inner hole of the compression sleeve (10), and the lower end of the compression sleeve (10) presses the fan blade (15) onto the claw pole (16) plane of the coil frame (13).
5. The ultrasonic welding tool for a vehicle generator rotor blade according to claim 4, characterized in that: The compression sleeve (10) is connected to a locking nut (11) for locking the compression sleeve (10) after the compression sleeve (10) is adjusted into place.