Laser welding equipment for servo motor stator core

Abstract

The invention discloses laser welding equipment for a stator core of a servo motor, and relates to the field of servo motor machining, the laser welding equipment comprises a protective shell, a driving mechanism is mounted at the top end of the protective shell, a moving mechanism is connected to the output end of the driving mechanism, a welding mechanism is mounted at the output end of the moving mechanism, and the welding mechanism comprises a laser welder. An air sleeve is installed on the outer side of the laser welding device, an air exchange mechanism and an air supply ring are installed on the outer side of the air sleeve, and air exchange pipes are installed on the two sides of the air exchange mechanism. In the using process, the outer side of the stator iron core can be welded through the welding mechanism, airflow is divided through the ventilation mechanism in the welding process, most airflow is sprayed out through the air nozzles perpendicular to the welding portion, and therefore molten liquid in the molten pool is blown to the middle in the welding process, and the welding effect is improved. The melting pool is evenly distributed, the welding effect is improved, and a small part of airflow can be sprayed out through the air nozzles parallel to the welding position.

Description

Technical Field

[0001] The present invention relates to the field, and specifically to a laser welding device for a servo motor stator core. Background Art

[0002] A servo motor can control speed, and the position accuracy is very accurate. It can convert a voltage signal into torque and rotational speed to drive a control object. The rotational speed of the servo motor rotor is controlled by an input signal and can respond quickly. In an automatic control system, it is used as an actuator and has characteristics such as a small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. During the processing of the stator core in the servo motor, silicon steel sheets are formed by stamping, and the silicon steel sheets are bonded into a whole by glue, and finally welded after being pressed together.

[0003] The prior art, such as a motor stator core automatic laser welding device disclosed in Chinese Patent Publication No. CN115533305B, includes a bracket and a welding mechanism. The welding mechanism includes: A support seat, located on the bracket, for supporting the motor stator core; the support seat is rotatably connected to the bracket, and a first driving member is fixedly installed on the bottom side of the support seat for driving the support seat to drive the motor stator core to rotate; A chute, located on the bracket and on the side of the support seat. A vertical moving frame is installed inside the chute. An adjusting assembly is installed on one side of the moving frame for adjusting the position of the motor stator core on the support seat following the moving frame and cleaning the outside of the motor stator core; a welding assembly is installed on the other side of the moving frame; A driving assembly is installed inside the bracket and connected to the moving frame for moving the moving frame along the chute. A rotating assembly is installed between the moving frame and the inside of the bracket for rotating the moving frame to make the adjusting assembly or the welding assembly close to the motor stator core.

[0004] In the prior art during the welding process, in order to reduce the welding lines generated by welding, laser welding is usually used, and after welding, the welding part is cleaned by a grinding structure. However, the existing multiple groups of iron cores are usually composed of multiple groups of silicon steel sheets. During the welding process, multiple groups of silicon steel sheets are usually limited synchronously to prevent the silicon steel sheets from shifting. However, during welding, it is usually necessary to weld the symmetrical positions of the silicon steel sheets. During the welding process, the silicon steel sheets need to be rotated, and during the welding process, due to the arc structure on the outer wall of the silicon steel sheets, the welding molten pool is likely to flow outward, resulting in uneven distribution of the welded connection parts and affecting the welding effect. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a laser welding device for a servo motor stator core to solve the technical problems of inconvenient synchronous clamping and movement of silicon steel sheets and uneven distribution of welding parts during the welding process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser welding device for a servo motor stator core, comprising a protective shell, a driving mechanism is installed on the top of the protective shell, a moving mechanism is connected to the output end of the driving mechanism, and a welding mechanism is installed on the output end of the moving mechanism, the welding mechanism comprises a laser welder, a gas sleeve is installed on the outside of the laser welder, a ventilation mechanism and an air supply ring are installed on the outside of the gas sleeve, ventilation pipes are installed on both sides of the ventilation mechanism, an air intake valve is connected to the top of the ventilation mechanism, and the ventilation pipe extends A connector and a slotted pipe are installed inside the air supply ring, the connector is fixedly connected to the slotted pipe, the slotted pipe is located inside the air supply ring, four groups of air pipes are installed at the bottom end of the air supply ring, and the air pipes are evenly distributed at the bottom end of the air supply ring at 90 degrees, two groups of air pipes are perpendicular to the welding route of the welding mechanism, and the two groups of air pipes are connected to the slotted pipe, the bottom end of the air pipe is connected with an air nozzle, and a transmission mechanism is installed inside the protective shell below the moving mechanism, a stator core is installed above the transmission mechanism, and a rotating shaft is opened at both ends of the stator core.

[0007] By adopting the above technical solution, the stator core can be easily limited and moved, the stator core can be moved into the protective shell, and the stator core can be moved under the welding mechanism. The stator core is welded by the welding head. After welding, the stator core is driven to rotate by the transmission mechanism, and the other side of the stator core is welded and fixed.

[0008] The present invention is further configured as follows: a first motor is installed on the side of the protective shell, a moving screw is connected to the output end of the first motor, the moving mechanism is sleeved on the outside of the moving screw, a slot is provided at the top of the protective shell, the top of the moving mechanism is located on the outside of the protective shell through the slot, baffles are installed on both sides of the protective shell, a tray is installed on the side of the moving mechanism, a retaining ring is connected to the top of the tray, and the tray is transmission-connected to the moving screw through the retaining ring.

[0009] As a preferred embodiment, the screw rod can be easily driven to rotate by the first motor, thereby driving the moving mechanism to move, so as to weld the stator core.

[0010] The present invention is further configured such that a welding head is connected to the bottom end of the welding mechanism, an air suction ring is installed on the outer side of the welding head, and the air suction ring is connected to the air sleeve, and the air nozzle is aligned with the outer side of the welding head.

[0011] As a preferred embodiment, it is convenient to recycle the airflow generated during welding.

[0012] The present invention is further configured such that a driving motor is installed inside the ventilation mechanism, and a fan blade is connected to the output end of the driving motor. The driving motor is located at the connection position between the ventilation mechanism and the air sleeve, and the driving motor drives the airflow to be inhaled from the air sleeve into the interior of the ventilation mechanism.

[0013] Preferably, it is convenient to drive the airflow to flow, recycle the airflow, and reduce waste.

[0014] The present invention is further configured such that an air groove is connected to the top end of the air supply ring, the slotted pipe is located inside the air groove, a support frame is connected to the bottom end of the air supply ring, and the support frame fixes the air pipe.

[0015] Preferably, it can conveniently limit and support the air pipe to avoid the air pipe from bending.

[0016] The present invention is further configured such that the transmission mechanism is a transmission screw rod. A support frame is installed on the outer side of the transmission screw rod. Moving wheels are installed on both sides of the support frame. The moving wheels are in contact with the inner wall of the protective shell. A sleeper is installed at the top end of the protective shell. The sleeper supports the support frame. A threaded transmission sleeve is installed on the outer side of the transmission screw rod at the bottom end of the threaded transmission sleeve. The support frame is in transmission connection with the transmission screw rod through the threaded transmission sleeve. A clamping motor is installed at the top end of the support frame. A clamping screw rod is connected to the output end of the clamping motor. Support seats are symmetrically installed on the outer side of the clamping screw rod.

[0017] Preferably, it is convenient to clamp and limit the stator core through the support seat, and drive the stator core to move into the equipment through the transmission screw rod.

[0018] The present invention is further configured such that a limiting groove is opened at the top end of the support seat, and rotating motors are installed on the sides of the support seat. An output gear is connected to the output end of the rotating motor inside the rotating motor. A driven gear is in transmission connection above the output gear. A rotating disk is connected to the outer side of the driven gear. The rotating disk is located inside the limiting groove. A rubber pad is provided on the inner wall of the limiting groove.

[0019] Preferably, the stator core can be limited through the rubber pad to improve the stability of the stator core.

[0020] The present invention is further configured such that the support seat is snap-fitted with the rotating shaft through the limiting groove. When the rotating motor rotates, it drives the output gear, the driven gear, and the rotating disk to rotate. The rotating disk drives the stator core to rotate through the rotating shaft.

[0021] Preferably, it is convenient to limit the stator core through the support seat, and drive the stator core to rotate through the rotating disk, which is convenient for adjusting the angle of the stator core.

[0022] The present invention is further configured such that the transmission mechanism is a conveyor belt, the conveyor belt is sleeved outside the protective housing, and the conveyor belt penetrates the protective housing. A plurality of U-shaped support bars are installed at the top of the conveyor belt. Every two groups of U-shaped support bars are symmetrically arranged inward. Grooves are formed inside the U-shaped support bars, and the U-shaped support bars are matched with the inner side of the stator core.

[0023] Preferably, it is convenient to drive the stator core into the device, and the stator core is limited by the U-shaped support bars.

[0024] The present invention is further configured such that four limiting cylinders are installed inside the protective housing, and each group of limiting cylinders is symmetrically arranged on both sides of the conveyor belt. A positioning frame is installed at the bottom end of the limiting cylinder, and a limiting rod is connected to the output end of the limiting cylinder. A limiting roller is installed on the outer wall of the limiting rod, and the limiting roller limits the stator core.

[0025] Preferably, during the welding process, the stator core can be fixedly limited by the limiting roller, improving stability.

[0026] The present invention is further configured such that the stator core is snap-connected to the conveyor belt through the U-shaped support bars. When the limiting roller limits the stator core, the conveyor belt runs, and the conveyor belt drives the stator core to rotate through the U-shaped support bars.

[0027] Preferably, during the limiting process, when the conveyor belt rotates, the U-shaped support bars will drive the stator core to rotate at this time, facilitating the adjustment of the angle of the stator core.

[0028] In summary, the present invention mainly has the following beneficial effects: Through the welding mechanism and the air exchange mechanism provided by the present invention, during use, the outer side of the stator core can be welded through the welding mechanism, and during the welding process, the airflow is shunted through the air exchange mechanism. Most of the airflow will be ejected through the nozzle perpendicular to the welding part, thereby blowing the molten liquid in the molten pool during the welding process towards the middle, making the molten pool evenly distributed and improving the welding effect. A small part of the airflow will be ejected through the nozzle parallel to the welding position, further improving the cooling effect.

[0029] Through the transmission mechanism provided by the present invention, during use, the stator core can be driven by the transmission mechanism to move into the protective housing, and during the welding process, the stator core is driven to rotate by the transmission mechanism, changing the angle of the rotor core, thereby facilitating the welding of different positions of the stator core and improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of the structure of the moving mechanism and the welding mechanism of the present invention; Figure 4 Schematic diagram of the structure of the ventilation mechanism of the present invention; Figure 5 Schematic sectional view of the ventilation mechanism of the present invention; Figure 6 Schematic diagram of the structure of the air supply ring of the present invention; Figure 7 Schematic sectional view of the structure of the air supply ring of the present invention; Figure 8 of the present invention Figure 7 Schematic diagram of the enlarged partial structure at A in; Figure 9 Schematic diagram of the structure of the transmission mechanism of the first embodiment of the present invention; Figure 10 Schematic diagram of the structure of the support frame of the first embodiment of the present invention; Figure 11 Schematic diagram of the structure of the support seat of the first embodiment of the present invention; Figure 12 Schematic diagram of the second embodiment of the present invention; Figure 13 Schematic diagram of the structure of the transmission mechanism of the second embodiment of the present invention; Figure 14 of the second embodiment of the present invention Figure 13 Schematic diagram of the enlarged partial structure at B in; Figure 15 Schematic diagram of the movement of multiple groups of stator cores in the second embodiment of the present invention.

[0031] Description of reference numerals: 1. Protective shell; 101. First motor; 102. Moving screw; 2. Moving mechanism; 201. Tray; 202. Snap ring; 3. Support frame; 301. Moving wheel; 302. Threaded transmission sleeve; 303. Clamping motor; 304. Clamping screw; 4. Sleeper; 5. Transmission mechanism; 501. Transmission screw; 502. Transmission belt; 503. U-shaped support bar; 6. Welding mechanism; 601. Laser welder; 602. Air sleeve; 603. Welding head; 604. Suction ring; 7. Stator core; 701. Rotating shaft; 8. Support base; 801. Limit groove; 802. Rotating motor; 803. Rubber pad; 804. Output gear; 805. Driven gear; 806. Rotating disk; 9. Ventilation mechanism; 901. Ventilation pipe; 902. Intake valve; 903. Connector; 904. Slotted pipe; 905. Fan blade; 906. Driving motor; 10. Air supply ring; 1001. Air pipe; 1002. Jet nozzle; 1003. Support frame; 11. Limit cylinder; 1101. Positioning frame; 1102. Limit rod; 1103. Limit roller. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0033] The embodiments of the present invention will be described below according to its overall structure. Embodiment 1

[0034] Please refer to Figures 1 to 8, including a protective shell 1, a first motor 101 is installed on the side of the protective shell 1, a moving screw 102 is connected to the output end of the first motor 101, a moving mechanism 2 is sleeved on the outside of the moving screw 102, a slot is opened at the top of the protective shell 1, the top of the moving mechanism 2 is located on the outside of the protective shell 1 through the slot, baffles are installed on both sides of the protective shell 1, a tray 201 is installed on the side of the moving mechanism 2, a clamping ring 202 is connected to the top of the tray 201, the tray 201 is connected to the moving screw 102 through the clamping ring 202, and a welding mechanism 6 is installed at the output end of the moving mechanism 2, the welding mechanism 6 includes a laser welder 601, and the stator core 7 can be welded by the laser welder 601, and the outer side of the laser welder 601 is installed There is an air sleeve 602, and a ventilation mechanism 9 and an air supply ring 10 are installed on the outside of the air sleeve 602. Ventilation pipes 901 are installed on both sides of the ventilation mechanism 9. The top of the ventilation mechanism 9 is connected with an air inlet valve 902. The ventilation pipe 901 extends to the inside of the air supply ring 10 and is installed with a connector 903 and a slotted pipe 904. The connector 903 and the slotted pipe 904 are fixedly connected. The slotted pipe 904 is located inside the air supply ring 10. A drive motor 906 is installed inside the ventilation mechanism 9, and a fan blade 905 is connected to the output end of the drive motor 906. The drive motor 906 is located at the connection position between the ventilation mechanism 9 and the air sleeve 602. The drive motor 906 drives the airflow to be sucked into the interior of the ventilation mechanism 9 from the air sleeve 602. Four sets of air pipes are installed at the bottom of the air supply ring 10 1001, and the air pipes 1001 are evenly distributed at the bottom of the air supply ring 10 at ninety degrees, the two groups of air pipes 1001 are perpendicular to the welding route of the welding mechanism 6, and the two groups of air pipes 1001 are connected to the slotted pipe 904, and the bottom of the air pipe 1001 is connected with an air nozzle 1002, which can start the ventilation mechanism 9 during welding, and the driving motor 906 in the ventilation mechanism 9 drives the fan blades 905 to rotate, and the fan blades 905 are driven, and the air inlet valve 902 is opened at this time, and the external inert gas is injected into the ventilation mechanism 9, and the air flow is injected into the air supply ring 10 along the air exchange pipe 901. When entering the air supply ring 1001, the slotted pipe 904 is aligned with the two groups of air pipes 1001, and most of the air flow is discharged through the two groups of air pipes 1001, and the two groups of air The tube 1001 is located on both sides of the stator core 7, and the bottom end of the welding mechanism 6 is connected to the welding head 603. The outer side of the welding head 603 is installed with an air suction ring 604, and the air suction ring 604 is connected to the air sleeve 602. The air nozzle 1002 is aligned with the outer side of the welding head 603 and the welding head 603, so that the molten pool generated during the welding process is blown toward the middle, so that the molten metal in the molten pool moves toward the middle, and the gravity offsets each other, so that the molten metal can be evenly distributed in the molten pool, avoiding uneven welding places, and part of the air flow will be discharged through the slotted tube 904, and part of the air flow will be discharged through the side of the slotted tube 904, and enter the direction perpendicular to the welding direction, so as to further cool the welding position and improve the cooling effect.And at this time, the cooling air flow will be recovered through the air suction ring 604, and the recovered air flow returns to the ventilation mechanism 9 through the air jacket 602, thereby realizing the recovery of inert gas and improving the gas utilization effect.

[0035] Please refer to Figures 9 to 11 , a transmission mechanism 5 is installed below the moving mechanism 2 inside the protective shell 1, a stator core 7 is installed above the transmission mechanism 5, rotating shafts 701 are provided at both ends of the stator core 7, the transmission mechanism 5 is a transmission screw 501, a support frame 3 is installed outside the transmission screw 501, moving wheels 301 are installed on both sides of the support frame 3, the moving wheels 301 are in contact with the inner wall of the protective shell 1, and a sleeper 4 is installed at the top of the protective shell 1, and the sleeper 4 supports the support frame 3. A threaded transmission sleeve 302 is installed outside the transmission screw 501 at the bottom end of the threaded transmission sleeve 302. The support frame 3 is in transmission connection with the transmission screw 501 through the threaded transmission sleeve 302. A clamping motor 303 is installed at the top end of the support frame 3. The output end of the clamping motor 303 is connected to a clamping screw 304. Support seats 8 are symmetrically installed outside the clamping screw 304. A limiting groove 801 is provided at the top end of the support seat 8. Rotating motors 802 are installed on the sides of the support seat 8. The output end of the rotating motor 802 is connected to an output gear 804 inside the rotating motor 802. A driven gear 805 is in transmission connection above the output gear 804. A rotating disk 806 is connected to the outside of the driven gear 805. The rotating disk 806 is located inside the limiting groove 801. A rubber pad 803 is provided on the inner wall of the limiting groove 801. The support seat 8 is in snap connection with the rotating shaft 701 through the limiting groove 801. When the rotating motor 802 rotates, it drives the output gear 804, the driven gear 805 and the rotating disk 806 to rotate. The rotating disk 806 drives the stator core 7 to rotate through the rotating shaft 701. Start the clamping motor 303 to drive the clamping screw 304 to rotate. The clamping screw 304 drives the support seat 8 to move inward to limit the stator core 7. At this time, the limiting groove 801 limits the end of the rotating shaft 701 to realize the installation of the stator core 7. Subsequently, the support frame 3 is driven by the transmission screw 501 to move into the protective shell 1 and be located below the welding mechanism 6. Start the moving mechanism 2 to push the welding mechanism 6 downward so that the welding mechanism 6 is located above the stator core 7, which can conveniently drive the stator core 7 to move into the equipment.

[0036] In the above embodiment, specifically, please refer to Figure 4 and Figure 6 , an air groove is connected to the top end of the air supply ring 10. The slotted pipe 904 is located inside the air groove. A support frame 1003 is connected to the bottom end of the air supply ring 10. The support frame 1003 fixes the air pipe 1001.

[0037] In use, first, the support frame 3 fixes the stator core 7. Place the stator core 7 above the support frame 3. Start the clamping motor 303 to drive the clamping screw 304 to rotate. The clamping screw 304 drives the support seat 8 to move inward to limit the stator core 7. At this time, the limit groove 801 limits the end of the rotating shaft 701, realizing the installation of the stator core 7. Subsequently, drive the support frame 3 to move into the protective shell 1 through the transmission screw 501 and position it below the welding mechanism 6. Start the moving mechanism 2 to push the welding mechanism 6 downward so that the welding mechanism 6 is located above the stator core 7. Then start the first motor 101. The first motor 101 drives the entire moving mechanism 2 to move above the stator core 7. The welding head 603 welds the outer wall of the stator core 7 at this time. During the welding process, start the ventilation mechanism 9. The drive motor 906 in the ventilation mechanism 9 drives the fan blade 905 to rotate. The fan blade 905 drives, and at this time, open the intake valve 902 to inject external inert gas into the ventilation mechanism 9. The air flow is injected into the air supply ring 10 through the ventilation pipe 901. When entering the air supply ring 10, the slotted pipe 904 aligns with the two groups of air pipes 1001. Most of the air flow is discharged through these two groups of air pipes 1001. These two groups of air pipes 1001 are located on both sides of the stator core 7 and align with the welding head 603. Thus, the molten pool generated during welding is blown towards the middle, causing the molten metal in the molten pool to move towards the middle and counteracting the gravity, so that the molten metal can be evenly distributed in the molten pool, avoiding uneven welding areas. And part of the air flow will be discharged through the slotted pipe 904, and part of the air flow will be discharged from the side of the slotted pipe 904 and enter the direction perpendicular to the welding direction to further cool the welding position, improving the cooling effect. At this time, the cooling air flow is recovered through the suction ring 604, and the recovered air flow returns to the ventilation mechanism 9 through the air sleeve 602, thus realizing the recovery of inert gas and improving the gas usage effect; When the welding is completed and it is necessary to weld other positions of the stator core 7, start the rotation motor 802. The rotation motor 802 drives the output gear 804 to rotate. The output gear 804 drives the driven gear 805 to rotate. The driven gear 805 drives the rotating disk 806 to rotate. The rotating disk 806 drives the stator core 7 to rotate, thereby adjusting the angle of the stator core 7. Then reverse-start the first motor 101 to drive the moving mechanism 2 to move in the reverse direction, so that the welding head 603 welds another surface of the stator core 7 again, improving the welding effect; When all welding of the stator core 7 is completed, turn off the welding mechanism 6 at this time. Start the transmission screw 501 to drive the support frame 3 to move outward until the welded stator core 7 is moved outside the protective shell 1, improving the welding effect Embodiment 2

[0038] Please refer to Figures 12 to 15, which is the second embodiment of the present application. The specific difference from the first embodiment lies in the different transmission mechanism 5. The specific situation is as follows: The transmission mechanism 5 is a conveyor belt 502. The conveyor belt 502 is sleeved on the outside of the protective shell 1 and passes through the protective shell 1. A plurality of U-shaped support bars 503 are installed at the top of the conveyor belt 502. Every two groups of U-shaped support bars 503 are symmetrically arranged inward. Grooves are opened inside the U-shaped support bars 503, and the U-shaped support bars 503 are matched with the inner side of the stator core 7. Four limit cylinders 11 are installed inside the protective shell 1, and each group of limit cylinders 11 is symmetrically arranged on both sides of the conveyor belt 502. A positioning frame 1101 is installed at the bottom of the limit cylinder 11, and the output end of the limit cylinder 11 is connected with a limit rod 1102. A limit roller 1103 is installed on the outer wall of the limit rod 1102. The limit roller 1103 limits the stator core 7. The stator core 7 is clamped and connected with the conveyor belt 502 through the U-shaped support bars 503. When the limit roller 1103 limits the stator core 7, the conveyor belt 502 runs, and the conveyor belt 502 drives the stator core 7 to rotate through the U-shaped support bars 503.

[0039] During the use of the second embodiment, first place the stator core 7 above the conveyor belt 502 and clamp it with the grooves of the stator core 7 through the symmetrically arranged U-shaped support bars 503, so as to limit and fix the stator core 7. Then start the conveyor belt 502 to drive the stator core 7 into the protective shell 1. When it moves below the welding mechanism 6, start the limit cylinder 11. The limit cylinder 11 pushes the limit rod 1102 and the limit roller 1103 to move to the outside of the stator core 7, so as to limit the stator core 7. Then start the welding mechanism 6 to weld the outside of the stator core 7. After welding, it is necessary to adjust the angle of the stator core 7. At this time, place a new stator core 7 on the conveyor belt 502, and then start the conveyor belt 502 again. At this time, the stator core 7 clamped by the limit roller 1103 will be driven by the U-shaped support bars 503 to rotate, so as to drive the stator core 7 to rotate between the limit rollers 1103, adjust the angle of the stator core 7, and move the new stator core 7 into the protective shell 1, improving the use efficiency; Subsequently, the welding mechanism 6 is used to weld other positions of the stator core 7. After welding, the welded conveyor belt 502 is driven by the conveyor belt 502 to move to the outside.

[0040] Although embodiments of the present invention have been shown and described, the specific embodiments are merely explanations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations that do not make a creative contribution to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A laser welding device for a servo motor stator core, comprising a protective shell (1), characterized in that: A driving mechanism is installed at the top of the protective shell (1); the output end of the driving mechanism is connected to the moving mechanism (2); and the output end of the moving mechanism (2) is installed with a welding mechanism (6); the welding mechanism (6) comprises a laser welder (601); an air sleeve (602) is installed on the outside of the laser welder (601); a ventilation mechanism (9) and an air supply ring (10) are installed on the outside of the air sleeve (602); ventilation pipes (901) are installed on both sides of the ventilation mechanism (9); the top of the ventilation mechanism (9) is connected to an air inlet valve (902); the ventilation pipe (901) extends to the inside of the air supply ring (10) and is installed with a connector (903) and a slotted pipe (904); the connector (903) and the slotted pipe (904) are connected to the slotted pipe (904); The slotted tube (904) is fixedly connected, the slotted tube (904) is located inside the air supply ring (10), four groups of air pipes (1001) are installed at the bottom end of the air supply ring (10), and the air pipes (1001) are evenly distributed at 90 degrees at the bottom end of the air supply ring (10), two groups of air pipes (1001) are perpendicular to the welding route of the welding mechanism (6), and the two groups of air pipes (1001) are connected to the slotted tube (904), and the bottom end of the air pipe (1001) is connected to an air nozzle (1002), and a transmission mechanism (5) is installed inside the protective shell (1) below the moving mechanism (2), and a stator core (7) is installed above the transmission mechanism (5), and a rotating shaft (701) is opened at both ends of the stator core (7).

2. The laser welding device for a servo motor stator core according to claim 1, characterized in that: A first motor (101) is installed on the side of the protective shell (1); the output end of the first motor (101) is connected to a moving screw (102); the moving mechanism (2) is sleeved on the outside of the moving screw (102); a slot is provided at the top of the protective shell (1); the top of the moving mechanism (2) is located on the outside of the protective shell (1) through the slot; baffles are installed on both sides of the protective shell (1).

3. A laser welding device for a servo motor stator core according to claim 2, characterized in that: A tray (201) is installed on the side of the moving mechanism (2), a clamping ring (202) is connected to the top of the tray (201), and the tray (201) is drivingly connected to the moving screw rod (102) via the clamping ring (202).

4. A laser welding device for a servo motor stator core according to claim 1, characterized in that: The bottom end of the welding mechanism (6) is connected to a welding head (603), an air suction ring (604) is installed on the outside of the welding head (603), and the air suction ring (604) is connected to the air sleeve (602), and the air nozzle (1002) is aligned with the outside of the welding head (603).

5. The laser welding device for a servo motor stator core according to claim 1, wherein: A drive motor (906) is installed inside the ventilation mechanism (9), and the output end of the drive motor (906) is connected to a fan blade (905). The drive motor (906) is located at the connection position between the ventilation mechanism (9) and the air sleeve (602), and the drive motor (906) drives the airflow to be sucked from the air sleeve (602) into the interior of the ventilation mechanism (9).

6. The laser welding device for a servo motor stator core according to claim 5, characterized in that: The top end of the air supply ring (10) is connected to an air groove, the slotted tube (904) is located inside the air groove, and the bottom end of the air supply ring (10) is connected to a support frame (1003), and the support frame (1003) fixes the air pipe (1001).

7. A laser welding device for a servo motor stator core according to claim 1, characterized in that: The transmission mechanism (5) is a transmission screw (501). A support frame (3) is installed on the outer side of the transmission screw (501). Moving wheels (301) are installed on both sides of the support frame (3). The moving wheels (301) are in contact with the inner wall of the protective shell (1). A sleeper (4) is installed at the top of the protective shell (1). The sleeper (4) supports the support frame (3). A threaded transmission sleeve (302) is installed at the bottom of the support frame (3) on the outer side of the transmission screw (501). The support frame (3) is in transmission connection with the transmission screw (501) through the threaded transmission sleeve (302). A clamping motor (303) is installed at the top of the support frame (3). The output end of the clamping motor (303) is connected to a clamping screw (304). Support seats (8) are symmetrically installed on the outer side of the clamping screw (304).

8. A laser welding device for a servo motor stator core according to claim 7, characterized in that: A limiting groove (801) is opened at the top of the support seat (8). Rotating motors (802) are installed on the sides of the support seat (8). The output end of the rotating motor (802) is connected to an output gear (804) inside the rotating motor (802). A driven gear (805) is in transmission connection above the output gear (804). A rotating disc (806) is connected to the outer side of the driven gear (805). The rotating disc (806) is located inside the limiting groove (801). A rubber pad (803) is opened on the inner wall of the limiting groove (801).

9. A laser welding device for a servo motor stator core according to claim 8, characterized in that: The support seat (8) is snap-fitted with a rotating shaft (701) through the limiting groove (801). When the rotating motor (802) rotates, it drives the output gear (804), the driven gear (805), and the rotating disc (806) to rotate. The rotating disc (806) drives the stator core (7) to rotate through the rotating shaft (701).

10. A laser welding device for a servo motor stator core according to claim 1, characterized in that: The transmission mechanism (5) is a conveyor belt (502). The conveyor belt (502) is sleeved on the outer side of the protective shell (1). The conveyor belt (502) penetrates the protective shell (1). A plurality of U-shaped support bars (503) are installed at the top of the conveyor belt (502). Every two groups of U-shaped support bars (503) are symmetrically arranged inward. Grooves are opened inside the U-shaped support bars (503). The U-shaped support bars (503) are matched with the inner side of the stator core (7).

11. A laser welding device for a servo motor stator core according to claim 10, characterized in that: Four limiting cylinders (11) are installed inside the protective shell (1). Each group of limiting cylinders (11) is symmetrically arranged on both sides of the conveyor belt (502). A positioning frame (1101) is installed at the bottom of the limiting cylinder (11). The output end of the limiting cylinder (11) is connected to a limiting rod (1102). A limiting roller (1103) is installed on the outer wall of the limiting rod (1102). The limiting roller (1103) limits the stator core (7).

12. A laser welding device for a servo motor stator core according to claim 11, characterized in that: The stator core (7) is snap-fitted with the conveyor belt (502) through the U-shaped support bars (503). When the limiting roller (1103) limits the stator core (7), the conveyor belt (502) runs. The conveyor belt (502) drives the stator core (7) to rotate through the U-shaped support bars (503).

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