Resistance welding machine for assembling automobile fan
By designing an eccentrically rotatable welding head and a three-axis moving platform, the problem that existing resistance welding machines cannot weld pins at different positions is solved, and efficient welding operations are achieved, reducing equipment complexity and manufacturing costs.
Patent Information
- Application Number
- CN202421655595.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The welding heads of existing resistance welding machines cannot rotate, resulting in the inability to weld the stator pins and welding pins at different locations, increasing the cost and complexity of equipment manufacturing.
A resistance welding machine for assembly of automobile fans was designed, using a three-axis moving platform and an eccentric connection welding head. The welding head was driven by the motor to rotate eccentrically, thereby achieving welding of the stator pins and welding pins at different positions.
The welding joints are efficiently welded to stator pins and welding pins at different locations, reducing equipment manufacturing costs and complexity and improving welding efficiency.
Smart Images
Figure CN223028691U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile fan assembly, and more specifically, to a resistance welding machine for automobile fan assembly. Background Art
[0002] When assembling an automobile fan, it is necessary to weld the stator and the PCB in the semi-finished motor together. Resistance welding is a commonly used welding method. Three stator pins for welding and fixing are provided on the stator, and the three are arranged at equal intervals along the circumferential direction of the stator edge. Three welding pins corresponding to the stator pins are provided on the PCB. The side walls of the three stator pins and the side walls of the three corresponding welding pins are abutted against each other. The resistance welding machine welds the stator pins and the welding pins together by welding the abutted side walls of the stator pins and the welding pins. At this time, the welding head of the resistance welding machine and the welding position need to form a working angle for welding, so the welding head and the welding position are inclined to each other.
[0003] When welding the stator pins and the welding pins at three different positions, it is necessary to rotate the welding head according to the welding position. However, the welding head of the existing resistance welding machine cannot rotate, resulting in the inability to weld the stator pins and the welding pins at different positions. This makes it necessary to use multiple welding heads in different directions when welding the stator pins and the welding pins at three different positions, which will increase the manufacturing cost of the equipment, make the equipment more complex, and larger in volume. Summary of the Utility Model
[0004] In view of the above-mentioned defects of the prior art, a resistance welding machine for automobile fan assembly is provided.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a resistance welding machine for automobile fan assembly, including a base, and further including a motor fixture for carrying the semi-finished motor. A conveying mechanism for driving the motor fixture to move is arranged on the base. A welding tooling is arranged on the base. The welding tooling includes a welding limit plate located directly above the conveying mechanism and a bracket for providing a supporting force to the welding limit plate. An opening for exposing the top welding position of the semi-finished motor is arranged on the welding limit plate. A jacking mechanism for jacking up the motor fixture is arranged on the base. The jacking mechanism is located directly below the opening. A three-axis moving platform is further arranged on the base. A welding mechanism for welding products is arranged on the three-axis moving platform. The welding mechanism includes a mounting plate, a welding head, and a motor. The mounting plate is mounted on the three-axis moving platform. The motor is arranged on the mounting plate. The welding head is eccentrically connected to the output shaft of the motor.
[0006] Preferably, the mounting plate includes a vertical portion and a horizontal portion. The vertical portion and the horizontal portion are combined to form a mounting plate with an L-shaped cross-section. The vertical portion is connected to the three-axis moving platform, and the motor is disposed at the top end of the horizontal portion. The output shaft of the motor passes through the bottom end of the horizontal portion and is connected to the welding head.
[0007] Preferably, the conveying mechanism includes a double-speed chain conveyor line and a carrier plate. The double-speed chain conveyor line is disposed at the top end of the base, the carrier plate is disposed on the double-speed chain conveyor line, the double-speed chain conveyor line is drivingly connected to the carrier plate, the motor fixture is disposed on the carrier plate, and a photoelectric sensor for detecting directly below the opening is further disposed on the base.
[0008] Preferably, the lifting mechanism includes a top plate and a cylinder for driving the top plate to lift. The top plate is located directly below the opening, the cylinder is disposed on the base, and the output shaft of the cylinder is connected to the top plate.
[0009] Preferably, a groove is formed on the top surface of the welding limit plate, and the opening is formed at the bottom of the groove.
[0010] Preferably, a welding fume suction cleaner is further disposed on the base. An air pipe is disposed on the welding fume suction cleaner, and one end of the air pipe away from the welding fume suction cleaner is disposed on one side of the welding head.
[0011] Preferably, support feet are disposed at the bottom end of the base.
[0012] Preferably, universal wheels are disposed at the bottom end of the base.
[0013] The beneficial effects of the present utility model are as follows: The conveying mechanism conveys the motor fixture loaded with the semi-finished motor to directly below the opening. The lifting mechanism lifts the motor fixture to make the semi-finished motor closer to the opening, facilitating welding. The three-axis moving platform drives the welding mechanism to move to different positions, and the motor drives the welding head to perform eccentric rotation, enabling the welding head to weld the stator pins and welding pins at different positions on the automotive fan. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic view of the overall left-side structure of an embodiment of the present utility model;
[0015] Figure 2 is an enlarged schematic view of area A in an embodiment of the present utility model Figure 1 in;
[0016] Figure 3 is a schematic view of the overall right-side structure of an embodiment of the present utility model;
[0017] Figure 4 is an embodiment of the present utility model Figure 3Schematic enlarged view of area B;
[0018] Figure 5 This is an embodiment of the present utility model Figure 3 Schematic enlarged view of area C;
[0019] Figure 6 Schematic view of the overall rear structure of an embodiment of the present utility model;
[0020] Figure 7 Schematic view of the jacking mechanism of an embodiment of the present utility model.
[0021] Reference numerals: 1 base, 2 conveying mechanism, 2 20 - speed chain conveyor lines, 21 carrier plate, 22 photoelectric sensor, 3 motor fixture, 4 welding limit plate, 40 groove, 41 opening, 5 jacking mechanism, 50 top plate, 51 cylinder, 6 three - axis moving platform, 7 welding mechanism, 70 mounting plate, 71 vertical part, 72 horizontal part, 73 welding head, 74 motor, 8 welding fume suction cleaner, 80 air pipe, 9 support feet, 90 universal wheels. Detailed implementation manners
[0022] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. In addition, the directional terms mentioned in the present utility model, for example, "up", "down", "front", "rear", "left", "right", "inside", "outside", etc., are only references to the directions in the attached drawings. The directional terms used are for better and clearer explanation and understanding of the present utility model, rather than indicating or implying the orientation that the present utility model must have. Therefore, it cannot be construed as a limitation to the present utility model.
[0023] An embodiment of the present utility model is as follows Figures 1 to 7As shown in the figure, a resistance welding machine for assembling an automotive fan includes a base 1, and further includes a motor fixture 3 for carrying a semi-finished motor. A conveying mechanism 2 for driving the motor fixture 3 to move is provided on the base 1. The conveying mechanism 2 is arranged at a position near the front side of the top of the base 1, and the conveying direction of the conveying mechanism 2 is the left-right direction. A welding tooling is provided on the base 1. The welding tooling includes a welding limit plate 4 located directly above the conveying mechanism 2 and a bracket for providing a supporting force to the welding limit plate 4. The bracket is composed of four support columns, and the four support columns are respectively located at the four corners of the bottom end of the welding limit plate 4. An opening 41 for exposing the top welding position of the semi-finished motor is provided on the welding limit plate 4. A jacking mechanism 5 for jacking up the motor fixture 3 is provided on the base 1. The jacking mechanism 5 is located directly below the opening 41. A three-axis moving platform 6 is further provided on the base 1. A welding mechanism 7 for welding products is provided on the three-axis moving platform 6. The welding mechanism 7 includes a mounting plate 70, a welding head 73 and a motor 74. The mounting plate 70 is mounted on the three-axis moving platform 6. The motor 74 is arranged on the mounting plate 70. The welding head 73 is eccentrically connected to the output shaft of the motor 74. The mounting plate 70 includes a vertical portion 71 and a horizontal portion 72. The vertical portion 71 and the horizontal portion 72 are combined to form a mounting plate 70 with an L-shaped cross-section. The vertical portion 71 is connected to the three-axis moving platform 6. The motor 74 is arranged at the top end of the horizontal portion 72. The output shaft of the motor 74 passes through the bottom end of the horizontal portion 72 and is connected to the welding head 73. The semi-finished motor to be welded is loaded onto the motor fixture 3, and then the motor fixture 3 carrying the semi-finished motor is conveyed to directly below the opening 41 through the conveying mechanism 2. The jacking mechanism 5 jacks up the motor fixture 3 to make the semi-finished motor closer to the opening 41, facilitating welding. The three-axis moving platform 6 drives the welding mechanism 7 to move to different positions, and the motor 74 drives the welding head 73 to rotate eccentrically, enabling the welding head 73 to weld the stator pins and welding pins at different positions on the automotive fan.
[0024] Further improvements, such as Figure 2 , such as Figure 5 and Figure 7As shown in the figure, the conveying mechanism 2 includes a double-speed chain conveyor line 20 and a bearing plate 21. The double-speed chain conveyor line 20 is arranged at the top end of the base 1 and extends in the left-right direction. A plurality of bearing plates 21 are provided, and the plurality of bearing plates 21 are arranged on the double-speed chain conveyor line 20. The double-speed chain conveyor line 20 is drivingly connected to the bearing plate 21. The motor fixture 3 is arranged on the bearing plate 21, and two motor fixtures 3 are arranged on each bearing plate 21. Two openings 41 are arranged on the welding limit plate 4 at intervals in the left-right direction. A photoelectric sensor 22 for detecting directly below the opening 41 is further arranged on the base 1. Each photoelectric sensor 22 includes a laser emitter and a laser receiver. The laser emitter and the laser receiver are correspondingly arranged on the front and rear sides directly below each opening 41. The laser emitter is installed on the front side wall of the double-speed chain conveyor line 20 through a bracket, and the laser receiver is installed on the rear side wall of the double-speed chain conveyor line 20 through a bracket. The lifting mechanism 5 includes a top plate 50 and a cylinder 51 for driving the top plate 50 to lift. The cylinder 51 is arranged at the top end of the base 1. The output shaft of the cylinder is connected to the top plate 50. Limiting blocks are arranged on the left and right sides of the top end of the top plate 50. The limiting blocks are rectangular parallelepiped structures extending in the front-rear direction. The two limiting blocks can prevent the bearing plate 21 from moving when the bearing plate 21 is lifted. Installation grooves for installing the cylinder 51 are arranged at the middle positions on the front and rear sides of the double-speed chain conveyor line 20 at the top end of the base 1. The installation grooves are located at the middle positions between the two openings 41. The cylinder 51 is installed in the installation groove. The output shaft of the cylinder 51 faces upward and is connected to the center of the bottom end of the top plate 50. When the photoelectric sensor 22 detects that the two products to be welded correspondingly move directly below the two openings 41, the double-speed chain conveyor line 20 stops moving the bearing plate 21. At this time, the cylinder 51 drives the top plate 50 to rise, and the top plate 50 lifts the bearing plate 21, that is, the cylinder 51 lifts the motor fixture 3 through the bearing plate 21, so that the products to be welded on the motor fixture 3 are close to the corresponding openings 41 for welding convenience.
[0025] Further improvement, as Figure 1 and Figure 2 shown in the figure, two grooves 40 are arranged on the top surface of the welding limit plate 4, and the two openings 41 are correspondingly arranged at the bottom of the grooves 40 to avoid the movement and eccentric rotation of the welding head 73 in the three-axis directions during welding through the grooves 40.
[0026] Further improvement, as Figure 6 and Figure 7As shown in the figure, a fume extractor 8 is also provided on the base 1. A bracket is provided at a position near the right rear of the top end of the base 1, and the fume extractor 8 is arranged on the bracket. An air pipe 80 is provided on the fume extractor 8, and one end of the air pipe 80 away from the fume extractor 8 is arranged on one side of the welding head 73. The fume extractor 8 absorbs the welding fume generated during the welding of the welding head 73 through the air pipe 80, which can effectively ensure the physical health of the staff and also protect the environment.
[0027] For further improvement, as Figure 1 and Figure 3 shown in the figure, four supporting feet 9 are provided at the bottom end of the base 1, and four universal wheels 90 are also provided at the bottom end of the base 1. The four supporting feet 9 are correspondingly arranged at the four corners of the bottom end of the base 1. The supporting feet 9 make the welding machine work more stably. The four universal wheels 90 are also correspondingly arranged at the four corners of the bottom end of the base 1. Each universal wheel 90 is located on one side of the corresponding supporting foot 9 close to the middle in the front-rear direction of the base 1. Each universal wheel 90 is arranged at an interval from the corresponding supporting foot 9. The height of the universal wheel 90 is less than the height of the supporting foot 9. The four supporting feet 9 can be detachably connected to the bottom end of the base 1 or the height of the four supporting feet 9 can be adjusted. When the four supporting feet 9 are detachably connected to the bottom end of the base 1, the four supporting feet 9 can be removed and the universal wheels 90 can be used to move the welding machine. When the height of the four supporting feet 9 can be adjusted, the height of the supporting feet 9 is adjusted to be less than the height of the universal wheels 90, and the universal wheels 90 can be used to move the welding machine.
[0028] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present utility model.
Claims
1. A resistance welding machine for assembling a car fan, comprising a base, characterized in that: It also includes a motor fixture carrying a semi-finished motor, wherein the base is provided with a conveying mechanism for driving the motor fixture to move; the base is provided with a welding tool; the welding tool includes a welding limit plate located directly above the conveying mechanism and a bracket that provides support for the welding limit plate; the welding limit plate is provided with an opening for exposing the top welding position of the semi-finished motor; the base is provided with a lifting mechanism for lifting the motor fixture, and the lifting mechanism is located directly below the opening; the base is also provided with a three-axis mobile platform; the three-axis mobile platform is provided with a welding mechanism for welding products; the welding mechanism includes a mounting plate, a welding head and a motor; the mounting plate is installed on the three-axis mobile platform; the motor is arranged on the mounting plate; the welding head is eccentrically connected to the output shaft of the motor.
2. A resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: The mounting plate comprises a vertical portion and a horizontal portion; the vertical portion and the horizontal portion are combined into a mounting plate having an L-shaped cross-section; the vertical portion is connected to a three-axis movable platform; the motor is arranged at the top end of the horizontal portion; the output shaft of the motor passes through the bottom end of the horizontal portion and is connected to a welding head.
3. A resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: The conveying mechanism includes a double-speed chain conveyor line and a supporting plate; the double-speed chain conveyor line is arranged on the top of the base; the supporting plate is arranged on the double-speed chain conveyor line; the double-speed chain conveyor line is drivingly connected to the supporting plate; the motor fixture is arranged on the supporting plate; and a photoelectric sensor is also arranged on the base just below the detection opening.
4. A resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: The lifting mechanism comprises a top plate and a cylinder for driving the top plate to rise and fall; the top plate is located directly below the opening; the cylinder is arranged on a base; and the output shaft of the cylinder is connected to the top plate.
5. The resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: A groove is arranged on the top surface of the welding limit plate; and the opening is arranged at the bottom of the groove.
6. The resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: A welding smoke collector is also arranged on the base; an air pipe is arranged on the welding smoke collector; and one end of the air pipe away from the welding smoke collector is arranged on one side of the welding head.
7. The resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: The bottom end of the base is provided with a supporting foot.
8. The resistance welding machine for assembling an automobile fan according to claim 1, characterized in that: The bottom end of the base is provided with a universal wheel.