Welding device for flat copper wires of motor stator

Abstract

The utility model relates to a welding device for flat copper wires of a motor stator, and belongs to the technical field of motor installation equipment. Comprising a workbench, a receding open groove is formed in the workbench, sliding rails are arranged on the portions, on the two sides of the receding open groove, of the workbench, a movable platform is installed on the sliding rails through sliding blocks, a rotating motor is fixedly installed at the position, corresponding to the receding open groove, below the movable platform through a motor installation base, and a rotating disc is fixedly installed on a transmission shaft of the rotating motor; a laser spot welding assembly is arranged on the workbench on one side of the sliding rail, and a driving mechanism is arranged on the workbench on the other side of the sliding rail and connected with the movable platform. According to the welding device for the motor stator flat copper wire, the manual labor amount is effectively reduced, the spot welding work efficiency is improved, and the problem that the connectivity of a motor circuit is affected by welding omission of the end led out of the flat copper wire is solved.

Description

Technical Field

[0001] The utility model relates to a welding device for flat copper wires of a motor stator, belonging to the technical field of motor installation equipment. Background Art

[0002] During the manufacturing process of the motor stator, hairpin-shaped flat copper wires need to be inserted into the wire slots of the motor stator core, and the lead wires of each two adjacent flat copper wires need to be welded to ensure the subsequent circuit connectivity of the motor.

[0003] At present, the welding work of the flat copper wire lead-out wires of the motor stator is mainly done by manual spot welding of the flat copper wire lead-out wires one by one using an electric welding gun. The manual spot welding method has low work efficiency and large manual labor. On the other hand, due to individual differences among workers, the ends of the flat copper wire lead-out wires are prone to welding leaks, which directly affects the circuit connectivity of the motor. Therefore, it is necessary to improve it. Summary of the Invention

[0004] The purpose of the utility model is to provide a device for welding flat copper wires of motor stators, which reduces manual labor, improves spot welding efficiency, and avoids welding leaks at the ends of the flat copper wires that affect the connectivity of the motor circuit.

[0005] The technical solution of the utility model is:

[0006] A welding device for flat copper wire of a motor stator includes a workbench, and is characterized in that: a clearance slot is provided on the workbench, slide rails are provided on the workbench on both sides of the clearance slot, a movable platform is installed on the slide rail via a slider, a rotating motor is fixedly installed at a position corresponding to the clearance slot below the movable platform via a motor mounting seat, a rotating disk is fixedly installed on the transmission shaft of the rotating motor, a laser spot welding assembly is installed on the workbench on one side of the slide rail, and a driving mechanism is installed on the workbench on the other side of the slide rail, and the driving mechanism is connected to the movable platform.

[0007] The movable platform is a rectangular plate, and a flange is provided at one end of the movable platform.

[0008] The laser spot welding assembly includes a laser spot welder, a support base, a vertical pole and a support cross bar. The support base is fixedly installed on the mobile platform. The vertical pole is fixedly inserted on the support base. The support cross bar is installed on the vertical pole through a connecting clamp. The laser spot welder is fixedly installed on the end of the support cross bar through the mounting base.

[0009] The rotating disk is cylindrical, an inner convex platform is provided on the inner circle of the rotating disk, and a plurality of limiting protrusions are provided on the edge of the rotating disk port.

[0010] The driving mechanism includes a screw mounting frame, a driving motor, a transmission screw, a screw nut and a connecting rod. The screw mounting frame is fixedly mounted on the workbench, a transmission screw is movably mounted in the screw mounting frame, a screw nut is threadedly mounted on the transmission screw, a slide is fixedly mounted on the circumference of the screw nut, the slide and the screw mounting frame are slidably connected, the slide is fixedly connected to the mobile platform through the connecting rod, a driving motor is fixedly mounted on the screw mounting frame at one end of the transmission screw, and a transmission shaft of the drive motor is fixedly connected to the transmission screw.

[0011] The beneficial effects of the present invention compared with the prior art are:

[0012] The motor stator flat copper wire welding device can form a limit on the motor stator core through the inner boss of the rotating disk, and the limiting boss of the rotating disk cooperates and engages with the card groove on the circumference of the motor stator core, thereby completing the placement of the motor stator core, and the transmission screw is driven by the driving motor to rotate, and the transmission screw cooperates with the screw nut, and under the limiting action of the slide, the slide can slide along one end of the transmission screw to the other end, and the slide drives the moving platform to slide synchronously through the connecting rod, so that the moving platform, the rotating disk, the rotating motor and the motor stator core are moved to the bottom of the laser spot welding assembly, and the laser spot welder of the laser spot welding assembly corresponds to one group of adjacent two flat copper wire lead-out wire ends of the motor stator core, and cooperates with the laser spot welder for intermittent spot welding under the intermittent rotation of the transmission shaft of the rotating motor, so as to realize the welding of all two adjacent flat copper wire lead-out wires on the motor stator core, and the moving platform drives the motor stator core to reset through the driving mechanism, so that the motor stator core is conveniently removed, thereby completing the welding work of the entire motor stator core. The welding device for the motor stator flat copper wire effectively reduces manual labor, improves spot welding efficiency, and avoids the problem of welding leaks at the ends of the flat copper wires that affect the connectivity of the motor circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the rotating disk in the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the motor stator core to be welded in the present invention.

[0016] In the figure: 1. Workbench; 2. Make way slot; 3. Slide rail; 4. Slider; 5. Moving platform; 6. Flange; 7. Rotating motor; 8. Rotating disk; 9. Inner boss; 10. Limiting protrusion; 11. Laser spot welder; 12. Support seat; 13. Vertical pole; 14. Support cross bar; 15. Connecting clamp; 16. Mounting seat; 17. Screw mounting bracket; 18. Driving motor; 19. Transmission screw; 20. Screw nut; 21. Connecting rod; 22. Slide; 23. Motor stator core; 24. Flat copper wire lead-out line; 25. Slot. DETAILED DESCRIPTION

[0017] As attached Figure 1-3 shown

[0018] The welding device for the flat copper wire of the motor stator includes a workbench 1, which is provided with a clearance slot 2, which is a long rectangular strip. Slide rails 3 are provided on the workbench 1 on both sides of the clearance slot 2, and sliders 4 are slidably installed on the slide rails 3. A movable platform 5 is fixedly installed on the slider 4. When working, the movable platform 5 can slide along the axial direction of the slide rail 3 through the slider 4.

[0019] The mobile platform 5 is a rectangular plate. A flange 6 is provided at one end of the mobile platform 5 . The flange 6 is a long rectangular body. During operation, the flange 6 and the laser spot welding assembly are used to position the mobile platform 5 .

[0020] A rotating motor 7 is fixedly installed at a position corresponding to the make way slot 2 below the mobile platform 5 through a motor mounting seat 16. The make way slot 2 makes way for the rotating motor 7. A rotating disk 8 is fixedly installed on the transmission shaft of the rotating motor 7. When working, the transmission shaft of the rotating motor 7 drives the rotating disk 8 to rotate.

[0021] The rotating disk 8 is cylindrical, and an inner boss 9 is provided on the inner circle of the rotating disk 8 . The inner boss 9 is used to limit the motor stator core 23 so that the motor stator core 23 can be placed inside the rotating disk 8 .

[0022] A plurality of limiting protrusions 10 are provided on the edge of the port of the rotating disk 8. The limiting protrusions 10 cooperate with the card slots 25 evenly distributed on the circumference of the motor stator core 23 to realize the positioning of the motor stator core 23, and at the same time facilitate the rotating disk 8 to drive the electronic core to rotate synchronously.

[0023] A laser spot welding assembly is installed on the workbench 1 on one side of the slide rail 3. The laser spot welding assembly includes a laser spot welder 11, a support seat 12, a vertical rod 13 and a support cross bar 14. The support seat 12 is a variable diameter cylindrical shape. The bottom end of the support seat 12 is fixedly mounted on the mobile platform 5 by bolts. The vertical rod 13 is fixedly inserted on the support seat 12. The vertical rod 13 is a long round rod. A connecting clamp 15 is fixedly mounted on the vertical rod 13. The connecting clamp 15 consists of a left connecting block, a right connecting block and a middle connecting block. The left connecting block, the right connecting block and the middle connecting block are rectangular blocks respectively. The left connecting block and the middle connecting block are connected to the vertical rod 1 A first slot 25 is provided at the corresponding position of the left connecting block 3. The cross section of the first slot 25 is circular. The left connecting block and the middle connecting block are fixedly connected by bolts. The first slot 25 is clamped with the vertical pole 13. A second slot 25 is provided at the corresponding position of the right connecting block and the middle connecting block and the support cross bar 14. The cross section of the second slot 25 is circular. The right connecting block and the middle connecting block are fixedly connected by bolts. The support cross bar 14 is clamped in the second slot 25. The end of the support cross bar 14 is fixedly installed with a laser spot welder 11 (model QCW) through the mounting seat 16. The laser spot welder 11 is a commercially available part.

[0024] A driving mechanism is installed on the workbench 1 on the other side of the slide rail 3, and the driving mechanism includes a screw mounting frame 17, a drive motor 18, a transmission screw 19, a screw nut 20 and a connecting rod 21. The screw mounting frame 17 is fixedly mounted on the workbench 1, and a transmission screw 19 is movably installed in the screw mounting frame 17 through a bearing seat. A screw nut 20 is threadedly mounted on the transmission screw 19, and a slide 22 is fixedly mounted on the circumference of the screw nut 20. The slide 22 is slidably connected to the screw mounting frame 17 through a keyway. The slide 22 is fixedly connected to the mobile platform 5 through a connecting rod 21. The cross-section of the connecting rod 21 is "L"-shaped. The connecting rod 21 is fixedly connected to the slide 22. When working, the slide 22 drives the mobile platform 5 to slide.

[0025] A drive motor 18 is fixedly mounted on the screw mounting bracket 17 at one end of the transmission screw 19 , and a transmission shaft of the drive motor 18 is fixedly connected to the transmission screw 19 . When working, the transmission shaft of the drive motor 18 drives the transmission screw 19 to rotate.

[0026] The welding device for the motor stator flat copper wire is provided with a program controller (model PLCS6-800), which is electrically connected to the laser spot welder 11, the rotating motor 7 and the drive motor 18. The program controller controls the laser spot welder 11, the rotating motor 7 and the drive motor 18 to operate in sequence and in an orderly manner.

[0027] When using the welding device for the motor stator flat copper wire, first, the lead wires of the flat copper wire on the motor stator core 23 to be welded are facing upwards, and then the motor stator core 23 is inserted into the rotating disk 8. The inner boss 9 of the rotating disk 8 can limit the motor stator core 23. The limiting protrusion 10 of the rotating disk 8 is engaged with the card groove 25 on the circumference of the motor stator core 23, thereby completing the placement of the motor stator core 23.

[0028] After the motor stator core 23 is placed, the drive motor 18 is started through the program controller, and the drive motor 18 drives the transmission screw 19 to rotate. The transmission screw 19 cooperates with the screw nut 20. Under the limiting action of the slide 22, the slide 22 slides from one end of the transmission screw 19 to the other end. At the same time, the slide 22 drives the moving platform 5 to slide synchronously through the connecting rod 21, so that the moving platform 5, the rotating disk 8, the rotating motor 7 and the motor stator core 23 slide from one end of the slide rail 3 to the other end. At this time, the motor stator core 23 moves to the bottom of the laser spot welding assembly, and the laser spot welder 11 of the laser spot welding assembly corresponds to one group of two adjacent flat copper wire lead-out wires 24 ends of the motor stator core 23. The program controller starts the laser spot welder 11, and the laser spot welder 11 welds the group of flat copper wires The ends of the lead wires 24 are welded. After the welding is completed, the program controller controls the intermittent rotation of the transmission shaft of the rotating motor 7 so that the next group of two adjacent flat copper wire lead wires 24 correspond to the laser spot welder 11. The program controller starts the laser spot welder 11 again for welding until all two adjacent flat copper wire lead wires 24 on the motor stator core 23 are welded. The program controller uses the driving mechanism to make the mobile platform 5 drive the motor stator core 23 to reset, making it convenient to remove the motor stator core 23 and replace the next motor stator core 23 to be welded, thereby completing the welding work of the entire motor stator core 23. The welding device for the motor stator flat copper wire effectively reduces manual labor, improves the efficiency of spot welding, and avoids the problem of welding leaks at the ends of the flat copper wires that affects the connectivity of the motor circuit.

Claims

1. A welding device for a motor stator flat copper wire, comprising a workbench (1), characterized in that: A clearance slot (2) is provided on the workbench (1), and slide rails (3) are provided on the workbench (1) on both sides of the clearance slot (2). A movable platform (5) is installed on the slide rail (3) through a slider (4). A rotating motor (7) is fixedly installed at a position corresponding to the clearance slot (2) below the movable platform (5) through a motor mounting seat (16). A rotating disk (8) is fixedly installed on the transmission shaft of the rotating motor (7). A laser spot welding assembly is installed on the workbench (1) on one side of the slide rail (3), and a driving mechanism is installed on the workbench (1) on the other side of the slide rail (3). The driving mechanism is connected to the movable platform (5).

2. The welding device for motor stator rectangular copper wire according to claim 1, characterized in that: The movable platform (5) is a rectangular plate, and a flange (6) is provided at one end of the movable platform (5).

3. The welding device for motor stator rectangular copper wire according to claim 1, characterized in that: The laser spot welding assembly comprises a laser spot welder (11), a support base (12), a vertical pole (13) and a support cross bar (14), wherein the support base (12) is fixedly mounted on the mobile platform (5), the vertical pole (13) is fixedly inserted into the support base (12), the vertical pole (13) is mounted on the support cross bar (14) via a connecting clamp (15), and the end of the support cross bar (14) is fixedly mounted with the laser spot welder (11) via a mounting base (16).

4. The welding device for motor stator rectangular copper wire according to claim 1, characterized in that: The rotating disk (8) is cylindrical, an inner boss (9) is provided on the inner circle of the rotating disk (8), and a plurality of position-limiting protrusions (10) are provided on the edge of the port of the rotating disk (8).

5. The welding device for motor stator rectangular copper wire according to claim 1, characterized in that: The driving mechanism includes a screw mounting frame (17), a driving motor (18), a transmission screw (19), a screw nut (20) and a connecting rod (21), the screw mounting frame (17) is fixedly mounted on the workbench (1), a transmission screw (19) is movably mounted in the screw mounting frame (17), a screw nut (20) is threadedly mounted on the transmission screw (19), a slide (22) is fixedly mounted on the circumference of the screw nut (20), the slide (22) is slidably connected to the screw mounting frame (17), the slide (22) is fixedly connected to the mobile platform (5) through the connecting rod (21), a driving motor (18) is fixedly mounted on the screw mounting frame (17) at one end of the transmission screw (19), and a transmission shaft of the driving motor (18) is fixedly connected to the transmission screw (19).

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