Multi-station synchronous laser welding equipment

Abstract

The utility model discloses multi-station synchronous laser welding equipment, which belongs to the technical field of rotor welding equipment, and comprises a tool and a welding driving device, the tool comprises a plurality of rotatable roll shafts, the plurality of roll shafts are arranged at intervals to form placing stations, and one end of each roll shaft is connected with driving equipment; the welding driving device comprises an electric cylinder for driving the tool to move and a laser welding mechanism arranged on the upper side of the tool, the upper sides of the copper rings on the multiple stations are welded through the electric cylinder, after the upper sides are welded, rotors on all the stations rotate through the driving device and stop after rotating by 180 degrees, the lower side faces rotate to the upper sides, then laser welding is conducted, and the copper rings on the multiple stations are welded through the laser welding mechanism. The process is simple and time-consuming.

Description

Technical Field

[0001] This utility model relates to the technical field of rotor welding equipment, and in particular to a multi-station synchronous laser welding equipment. Background Technology

[0002] In electric motors and rotating machinery, the rotor, as a key component for energy conversion or transmission, is crucial for its structural stability and operational reliability. A rotor typically consists of core components such as a rotor shaft, iron core, and windings. To meet specific electrical performance, mechanical strength, or heat conduction requirements, copper rings are often installed on the rotor shaft. Copper rings have a wide range of applications, including but not limited to serving as short-circuit rings to eliminate vibrations caused by electromagnetic imbalances, as conductive rings to conduct current, and as heat dissipation rings to improve heat transfer efficiency. Traditionally, the rotor shaft and copper ring are fixed using an interference fit, achieving a tight fit through the interference between the copper ring and the rotor shaft. However, with the ever-increasing performance requirements of modern industry, traditional interference fit methods are no longer sufficient in certain application scenarios.

[0003] To overcome the limitations of traditional interference fit methods, the industry has begun to explore welding as a fixing method. Welding offers advantages such as high connection strength and stability, making it particularly suitable for applications requiring high connection strength and reliability. However, welding also has some drawbacks, especially when dealing with copper rings at multiple workstations. Traditional welding methods require welding each copper ring individually. This means that after welding the upper side of a copper ring, the copper ring or rotor shaft needs to be rotated to expose the lower side for welding. This process is not only tedious and time-consuming but can also introduce errors due to multiple rotations and positioning, affecting the accuracy and consistency of the welding. Utility Model Content

[0004] The purpose of this invention is to solve the problem mentioned in the background art of cumbersome and time-consuming multi-station copper ring welding, which increases production costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-station synchronous laser welding equipment includes a fixture and a welding drive device. The fixture includes multiple rotatable rollers, which are spaced apart to form placement stations. One end of each roller is connected to a drive device. The welding drive device includes an electric cylinder for driving the fixture to move and a laser welding mechanism disposed on the upper side of the fixture.

[0007] Preferably, two adjacent rollers are connected by a belt.

[0008] Preferably, the tooling further includes a base plate, on which two support plates are fixed, and the plurality of rollers are rotatably connected to the support plates.

[0009] Preferably, the driving device includes a drive motor and a support frame mounted on a base plate. Two drive wheels of the same height as the roller shaft are rotatably connected to the support frame. A drive wheel is connected to the output shaft of the drive motor. The drive wheel and the two drive wheels are connected by a toothed belt.

[0010] Preferably, a baffle plate is fixed to the upper end of the support plate near the support frame, and the baffle plate extends laterally to the upper side of the belt.

[0011] Preferably, an auxiliary plate is connected to the base plate, a cylinder is mounted on the auxiliary plate, and an abutment plate is fixed to the extended end of the cylinder.

[0012] Preferably, a conveyor belt for transporting rotors is provided on one side of the welding drive device.

[0013] Preferably, a support frame and an industrial robot are respectively provided on both sides of the tooling. A second cylinder is provided on the support frame. A suction component is connected to the extended end of the second cylinder and the end of the industrial robot. The suction component includes a frame. A telescopic cylinder is provided on the frame. A fixed plate is connected to the extended end of the telescopic cylinder. An electromagnet is provided on the lower side of the fixed plate. A suction groove for adsorbing the rotor core is opened on the lower side of the electromagnet. A slide rod is slidably connected to the fixed plate. The lower end of the slide rod is fixed to the electromagnet. A spring is sleeved on the slide rod. The two ends of the spring are respectively connected to the fixed plate and the electromagnet.

[0014] Preferably, a conveyor belt is provided below the cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The upper side of the copper rings at multiple stations is welded first by an electric cylinder. After the upper side is welded, the rotors at all stations are rotated by a drive device until they stop at 180°, so that the lower side rotates to the upper side for laser welding. The process is simple and time-saving.

[0017] The cylinder makes the abutment plate abut against the end of the rotor shaft, so that all the copper rings are on the same line, which facilitates welding by the welding mechanism. The electromagnet on the suction component makes it easy to pick up the iron cores of multiple rotors. The industrial robot, cylinder two and suction component enable automatic feeding and unloading of the welding equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the electric cylinder and tooling of this utility model.

[0021] Figure 3 This is a schematic diagram of the roller of this utility model.

[0022] Figure 4 This is a schematic diagram of the drive device of this utility model.

[0023] Figure 5 This is a schematic diagram of the suction component of this utility model.

[0024] Figure 6 This is a schematic diagram of the fixing plate and electromagnet of this utility model.

[0025] Figure 7 This is a schematic diagram of the blocking plate and connecting plate of this utility model.

[0026] Drawing number descriptions: 1. Tooling; 11. Roller; 12. Belt; 13. Base plate; 131. Support plate; 14. Drive device; 141. Drive motor; 142. Support frame; 143. Drive wheel; 144. Drive wheel; 145. Toothed belt; 15. Baffle plate; 16. Auxiliary plate; 17. Cylinder 1; 18. Abutment plate; 2. Welding drive device; 21. Electric cylinder; 22. Laser welding mechanism; 3. Conveyor belt 1; 31. Baffle plate; 32. Connecting plate; 4. Support frame; 5. Industrial robot; 6. Cylinder 2; 7. Suction component; 71. Frame; 72. Telescopic cylinder; 73. Fixed plate; 74. Electromagnet; 75. Slide rod; 76. Spring; 8. Conveyor belt 2. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0029] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0030] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0031] Please see Figures 1-7 A multi-station synchronous laser welding device includes a fixture 1 and a welding drive device 2. The fixture 1 includes multiple rotatable rollers 11, which are spaced apart to form placement stations. Adjacent rollers 11 are connected by belts 12. Annular grooves for mounting the belts 12 are provided on the rollers 11. The fixture 1 also includes a base plate 13, on which two support plates 131 are fixed. The rollers 11 are rotatably connected to the support plates 131. One end of each roller 11 is connected to a drive device 14. The drive device 14 includes a drive motor 141 mounted on the base plate 13 and a support frame 142. Two drive wheels 143, at the same height as the rollers 11, are rotatably connected to the support frame 142. Each drive wheel 143 corresponds to the outermost roller 11. A drive wheel 144 is connected to the output shaft of a fixed drive motor 141. The drive wheel 144 and two drive wheels 143 are connected by a toothed belt 145. Both the drive wheel 143 and the drive wheel 144 have teeth that mesh with the toothed belt 145 (not shown in the diagram). The drive device 14 causes the roller shaft 11 to rotate, which in turn causes the rotor to rotate, allowing welding to be performed on the other side of the copper rings. A baffle plate 15 is fixed to the upper end of a support plate 131 near the support frame 142. The baffle plate 15 extends laterally to the upper side of the belt 12, covering the belt 12. An auxiliary plate 16 is connected to the base plate 13. A cylinder 17 is mounted on the auxiliary plate 16. An abutment plate 18 is fixed to the extended end of the cylinder 17. The abutment plate 18 abuts against the end of the rotor shaft, ensuring that all the copper rings are on the same line, facilitating welding by the welding mechanism.

[0032] The welding drive device 2 includes an electric cylinder 21 that drives the tooling 1 to move and a laser welding mechanism 22 that is set on the upper side of the tooling 1. The laser welding mechanism 22 is supported by the plate body. An extension plate is installed on the electric cylinder 21. The tooling 1 is on the extension plate. The electric cylinder 21 and the laser welding mechanism 22 are both existing technologies and will not be described in detail. A conveyor belt 3 for transporting the rotor is set on one side of the welding drive device 2. The conveyor belt 3 is used to transport the copper ring that has not yet been welded. The conveyor belt 3 is existing technology. A blocking plate 31 for blocking the rotor is set downstream of the conveyor belt 3 in the conveying direction. A connecting plate 32 is set between the blocking plate 31 and the conveyor belt 3. The connecting plate 32 supports the rotor to be on the same horizontal line.

[0033] The tooling 1 has a support frame 4 and an industrial robot 5 on each side. A second cylinder 6 is mounted on the support frame 4. A suction component 7 is connected to the extended end of the second cylinder 6 and the end of the industrial robot 5. The suction component 7 on the second cylinder 6 is slidably connected to the support frame 4 via a slider. The suction component 7 includes a frame 71, on which a telescopic cylinder 72 is mounted. The telescopic cylinder 72 is longitudinally arranged, and a fixing plate 73 is connected to the extended end of the telescopic cylinder 72. The fixing plate 73 is located inside the frame 71. An electromagnet 74 is mounted on the lower side of the fixing plate 73. When energized, the electromagnet 74 provides… Magnetic force is used to attract the rotor. Electromagnet 74 is existing technology. The lower side of electromagnet 74 has a groove for attracting the rotor core. A slide rod 75 is slidably connected to the fixed plate 73. The slide rod 75 passes through the fixed plate 73. There are two slide rods 75, located on both sides of the telescopic cylinder 72. The lower end of the slide rod 75 is fixed to the electromagnet 74. A spring 76 is sleeved on the slide rod 75. The two ends of the spring 76 are connected to the fixed plate 73 and the electromagnet 74, respectively. A conveyor belt 8 is set below the cylinder 6. The conveyor belt 8 is used to transport the welded copper ring.

[0034] In operation, the industrial robot 5 moves the suction component 7 to the upper side of the conveyor belt 3. Then, the telescopic cylinder 72 is activated, lowering the electromagnet 74 via the fixed plate 73 until it directly contacts the rotor. The electromagnet 74 is then energized to attract multiple rotors. After attraction, the telescopic cylinder 72 raises the electromagnet 74, which, through the rotation of the industrial robot 5, moves the suction component 7 to the upper side of the tooling 1. The telescopic cylinder 72 then places it on the workstation. The electromagnet 74 is de-energized, the robot moves away, and the electric cylinder 21 is activated, moving the tooling 1. When the first rotor shaft and copper ring move below the laser welding mechanism 22, the laser welding mechanism 22 welds their upper sides. After welding, the electric cylinder 21 moves the second rotor shaft below the laser welding mechanism 22 for welding, continuing until the upper sides are completely welded. At this point, the drive motor 141 is activated, driving the drive wheel 143 and the drive wheel 144. After the toothed belt 145, the rollers 11 at both ends rotate. All rollers 11 rotate together through the belt 12, causing all rotors to rotate 180°. The rotor drives the rotor shaft and copper ring to rotate 180° together. Then, the electric cylinder 21 causes the fixture 1 to move in the opposite direction to weld one by one on the other side. The welding process is the same. After welding is completed, the fixture 1 stops at the initial position. The cylinder 26 extends to move the suction component 7 on it to the upper side of the fixture 1. Then, the telescopic cylinder 72 causes the electromagnet to move down until it directly contacts the rotor. Then, the electromagnet 74 is energized to attract multiple rotors. After attraction, the telescopic cylinder 72 causes the electromagnet 74 to rise. Then, the cylinder 26 resets the suction component 7 on it. Then, the telescopic cylinder 72 causes the electromagnet 74 to fall down, so that the rotor falls on the conveyor belt 28. The electromagnet 74 is de-energized, and the extended end of the telescopic cylinder 72 causes the electromagnet 74 to rise and reset.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A multi-station synchronous laser welding equipment, characterized in that, include: The tooling (1) includes a plurality of rotatable rollers (11), which are arranged at intervals to form a placement station, and one end of each roller (11) is connected to a drive device (14). The welding drive device (2) includes an electric cylinder (21) for driving the tooling (1) to move and a laser welding mechanism (22) disposed on the upper side of the tooling (1).

2. The multi-station synchronous laser welding equipment according to claim 1, characterized in that: Two adjacent rollers (11) are connected by a belt (12).

3. The multi-station synchronous laser welding equipment according to claim 1, characterized in that: The tooling (1) also includes a base plate (13), on which two support plates (131) are fixed, and multiple rollers (11) are rotatably connected to the support plates (131).

4. The multi-station synchronous laser welding equipment according to claim 3, characterized in that: The drive device (14) includes a drive motor (141) and a support frame (142) mounted on a base plate (13). Two drive wheels (143) of the same height as the roller shaft (11) are rotatably connected to the support frame (142). A drive wheel (144) is connected to the output shaft of the drive motor (141). The drive wheel (144) and the two drive wheels (143) are connected by a toothed belt (145).

5. A multi-station synchronous laser welding equipment according to claim 4, characterized in that: A baffle plate (15) is fixed at the upper end of the support plate (131) near the support frame (142), and the baffle plate (15) extends laterally to the upper side of the belt (12).

6. The multi-station synchronous laser welding equipment according to claim 3, characterized in that: An auxiliary plate (16) is connected to the base plate (13), and a cylinder (17) is installed on the auxiliary plate (16). An abutment plate (18) is fixed to the extended end of the cylinder (17).

7. The multi-station synchronous laser welding equipment according to claim 1, characterized in that: The welding drive device (2) is provided with a conveyor belt (3) for transporting rotors on one side.

8. A multi-station synchronous laser welding equipment according to claim 7, characterized in that: The tooling (1) is provided with a support frame (4) and an industrial robot (5) on both sides respectively. The support frame (4) is provided with a cylinder (6). The extended end of the cylinder (6) and the end of the industrial robot (5) are connected to a suction component (7). The suction component (7) includes a frame (71). The frame (71) is provided with a telescopic cylinder (72). The extended end of the telescopic cylinder (72) is connected to a fixed plate (73). An electromagnet (74) is provided on the lower side of the fixed plate (73). A suction groove for adsorbing the rotor core is opened on the lower side of the electromagnet (74). A slide rod (75) is slidably connected on the fixed plate (73). The lower end of the slide rod (75) is fixed to the electromagnet (74). A spring (76) is sleeved on the slide rod (75). The two ends of the spring (76) are connected to the fixed plate (73) and the electromagnet (74) respectively.

9. A multi-station synchronous laser welding equipment according to claim 8, characterized in that: A conveyor belt (8) is provided below the cylinder (6).

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