An automatic shaping and riveting integrated machine for motor stator core
By designing an integrated automatic shaping and riveting machine for motor stator cores, the automated production of motor stator cores has been realized, solving the problem of low efficiency in manual operation and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU WEIGUANG ELECTRONICS CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
Smart Images

Figure CN224538017U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor processing, and relates to motor stator core production equipment, and in particular to an automatic shaping and riveting integrated machine for motor stator cores. Background Technology
[0002] The motor structure includes a stator and a rotor. The stator is a fixed component, made of magnetically conductive material, with stator coils wound around it. An input current generates a periodically changing magnetic field, driving the rotor to rotate. For high-power motor stator cores, which are made of laminated iron sheets, the motor generates enormous torque during operation. This torque acts back onto the stator, easily causing deformation and damage. Therefore, for high-power laminated motor stator cores, shaping is required first, followed by riveting. Rivets are inserted axially into the stator core to strengthen its structure and enable it to withstand greater torque. Traditionally, this shaping and riveting process involves two steps: first, a pressing cylinder shapes the stator core, then rivets are manually inserted for positioning, and finally, a pressing cylinder forces the rivets in. Both steps require manual handling and rivet insertion, resulting in low efficiency and high labor intensity. Utility Model Content
[0003] The purpose of this invention is to solve the problem that the existing motor stator core shaping and riveting processes require manual labor, resulting in low efficiency and high labor intensity. The invention provides an automatic motor stator core shaping and riveting integrated machine that uses automatic positioning and transfer between the shaping and riveting processes, and an automatic riveting device after positioning to replace manual labor, thereby improving production efficiency, significantly reducing labor intensity, increasing product standardization, and improving yield.
[0004] The technical solution adopted by this utility model to solve its technical problem is: an automatic shaping and riveting integrated machine for motor stator cores, including a machine body, a stator core feeding slide is provided on one side of the machine body, a shaping station is provided at the end of the feeding slide, a shaping cylinder that can be pressed down is provided at the shaping station, a riveting turntable is provided on one side of the shaping station, a plurality of fixed supports for placing stator cores are evenly arranged around the circumference of the riveting turntable, a feeding station, a plurality of riveting stations, a riveting press station are arranged sequentially on the riveting turntable, a riveting press cylinder that moves up and down is provided at the riveting press station, a discharging station, and a transport robotic arm is provided between the shaping station and the feeding station.
[0005] This device features a shaping station at the end of the feeding chute. The shaping station uses a downward-pressing shaping cylinder to shape the stator core. After shaping, a push rod pushes the shaped stator core to one side, and then a robotic arm transports it to the fixed support platform of the riveting turntable. The subsequent riveting process is completed on the turntable station, with multiple riveting and pressing processes performed sequentially. Finally, the shaped and riveted stator core is output from the discharge station. This device is a fully automated integrated shaping and riveting machine. It can directly connect to stator core processing equipment via the feeding chute, replacing manual labor, improving production efficiency, significantly reducing labor intensity, increasing product standardization, and improving yield.
[0006] Preferably, the handling robotic arm includes a translation slider, which extends towards the stator core and is equipped with clamping arms that grip the stator core from both sides. Since the stator core is relatively heavy, the handling robotic arm uses a clamping and then translational method to ensure the stator core remains stable during handling.
[0007] Preferably, an adjustment station is provided between the forming station and the loading station. A rotating platform is provided at the adjustment station, and a laser positioning sensor is positioned above the rotating platform. The stator core has positioning holes corresponding to the laser positioning sensor. After forming, the stator core is first transported to the adjustment station. The rotating platform at the adjustment station rotates continuously. During rotation, the positioning sensor positions the positioning holes of the stator core. A stepper motor controls the rotating platform to stop at a standard position, ensuring that the stator core, after being positioned at the adjustment station, maintains a fixed circumferential position after being transported to the loading station, facilitating subsequent riveting positioning at the riveting station. During adjustment and positioning, the phase angle of the stepper motor when the laser positioning sensor aligns with the positioning hole is recorded. This recording is repeated multiple times as the rotating platform rotates, and cross-calibrated. Finally, based on the recorded stepper motor phase angle, the stepper motor is controlled to gradually decelerate until it stops at the recorded phase angle, avoiding sudden stops that could cause positional shifts due to the stator core's inertial rotation.
[0008] Preferably, a stepper motor is provided below the rotating platform.
[0009] Preferably, the transport robotic arms are provided in two sets, one set of transport robotic arms transports the stator core between the forming station and the adjusting station, and the other set of transport robotic arms transports the stator core between the adjusting station and the loading station.
[0010] Preferably, the line connecting the forming station and the loading station is perpendicular to the feeding chute, and a loading push rod is provided on one side of the end of the feeding chute to push the stator core from the forming station to the loading preparation station. The handling robot arm clamps and moves the stator core from the loading preparation station.
[0011] Preferably, multiple riveting stations are arranged along the rotation direction of the riveting turntable, and each riveting station has a corresponding rivet hopper on its side. The outlet of the rivet hopper is located between the riveting stations and a riveting robot is installed.
[0012] Preferably, the rivets at the rivet hopper outlet are fed horizontally, the rivets on the stator core are riveted vertically, and the lower end of the riveting robot is provided with a swing gripper that can swing between the horizontal and vertical directions.
[0013] Preferably, a discharge chute is provided on one side of the discharge station, a handling robotic arm is provided between the discharge station and the discharge chute, and a discharge push rod is provided at the front end of the discharge chute.
[0014] Preferably, a finished product stacking platform is provided on the side of the rear end of the discharge chute, and a translation push rod is provided on the other side of the rear end of the discharge chute opposite to the finished product stacking platform. The width of the translation push rod is the same as the width of the finished product stacking platform. A lifting baffle is also provided between the finished product stacking platform and the discharge chute. A gantry frame is provided above the lifting baffle, and a lifting cylinder is provided above the gantry frame.
[0015] This invention utilizes automated equipment to complete the stator core shaping and riveting process, replacing manual labor, improving production efficiency, greatly reducing labor intensity, increasing product standardization, and improving yield. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a top view schematic diagram of this utility model.
[0019] In the diagram: 1. Feed chute, 2. Shaping station, 3. Positioning cylinder, 4. Shaping cylinder, 5. Feeding push rod, 6. Handling robot arm, 7. Adjustment station, 8. Feeding station, 9. First riveting station, 10. Second riveting station, 11. Press riveting station, 12. Press riveting cylinder, 13. Discharge chute, 14. Discharge push rod, 15. Stator core, 16. Translation push rod, 17. Finished product stacking platform, 18. Lifting baffle, 19. Lifting cylinder, 20. Riveting turntable, 21. Fixed support platform, 22. Feeding preparation position, 23. Laser positioning sensor, 24. Rotating support platform, 25. Rivet hopper, 26. Riveting robot arm, 27. Discharge station. Detailed Implementation
[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings.
[0021] Example: An automatic shaping and riveting machine for motor stator cores, such as... Figure 1 , 2 As shown, the device includes a machine body, with a stator core 15 feeding chute 1 on one side of the machine body. The front end of the feeding chute can connect to the stator core production and processing equipment. A shaping station 2 is provided at the end of the feeding chute 1. A positioning cylinder 3 is provided at the shaping station facing the stator core 15, which can adjust the positioning of the stator core entering the shaping station 2. A shaping cylinder 4 that can be pressed down is provided at the shaping station 2. A riveting turntable 20 is provided on one side of the shaping station. Several fixed bearings 21 for placing stator cores are evenly arranged around the circumference of the riveting turntable. The riveting turntable is sequentially provided with a feeding station 8, a primary riveting station 9, a secondary riveting station 10, a pressing riveting station 11, and a discharging station 27.
[0022] The line connecting the forming station 2 and the loading station 8 is perpendicular to the feeding chute 1. A loading push rod 5 is provided on one side of the end of the feeding chute 1 to push the stator core 15 from the forming station to the loading preparation station 22. An adjustment station 7 is centrally located between the loading preparation station 22 and the loading station 8, behind the forming station. Two sets of transport robotic arms 6 are provided. One set of transport robotic arms 6 transports the stator core 15 between the loading preparation station 22 and the adjustment station 7, behind the forming station. The other set of transport robotic arms transports the stator core between the adjustment station 7 and the loading station 8. The transport robotic arm 6 includes a translation slider, which extends towards the stator core and has clamping arms that grip the stator core from both sides. A rotating platform 24 is provided at the adjustment station 7. A laser positioning sensor 23 is provided above the rotating platform 24, and the stator core has positioning holes corresponding to the laser positioning sensor. The rotating platform 23 is controlled to rotate by a stepper motor located below it until it stops.
[0023] Both the primary riveting station 9 and the secondary riveting station 10 have corresponding rivet hoppers 25 on their sides. The outlets of the rivet hoppers are located between the riveting stations, and a riveting robot 26 is installed there. The rivets at the outlets of the rivet hoppers are fed out horizontally, and the rivets on the stator core are riveted vertically. The lower end of the riveting robot is equipped with a swing gripper that can swing between the horizontal and vertical directions.
[0024] A riveting cylinder 12 that moves up and down is provided at the riveting station 11.
[0025] A discharge chute 13 is provided on one side of the discharge station 27. A handling robotic arm 6 is provided between the discharge station 27 and the discharge chute. A discharge push rod 14 is provided at the front end of the discharge chute. A finished product stacking platform 17 is provided on the side of the rear end of the discharge chute 13. A translation push rod 16 is provided on the other side of the rear end of the discharge chute opposite to the finished product stacking platform. The width of the translation push rod is the same as the width of the finished product stacking platform. A lifting baffle 18 is also provided between the finished product stacking platform and the discharge chute. A gantry frame is provided above the lifting baffle. A lifting cylinder 20 is provided above the gantry frame.
[0026] This device features a shaping station at the end of the feeding chute. The shaping station uses a downward-pressing shaping cylinder to shape the stator core. After shaping, a push rod pushes the shaped stator core to one side, and then a robotic arm transports it to the fixed support platform of the riveting turntable. The subsequent riveting process is completed on the turntable station, involving multiple riveting and pressing processes. Finally, the shaped and riveted stator core is output from the discharge station. The stator core is discharged along the discharge chute and pushed to the finished product stacking platform for neat arrangement by a translational push rod at the rear end of the discharge chute.
[0027] This device can replace manual labor and complete the shaping, positioning, and riveting processes of the motor stator core in one integrated process. It not only saves labor but also standardizes the shaping and riveting processes, thereby improving the product yield.
Claims
1. An automatic shaping and riveting machine for motor stator cores, comprising a machine body, characterized in that: A stator core feeding chute is provided on one side of the machine body. A shaping station is provided at the end of the feeding chute. A shaping cylinder that can be pressed down is provided at the shaping station. A riveting turntable is provided on one side of the shaping station. Several fixed support platforms for placing stator cores are evenly arranged around the circumference of the riveting turntable. A feeding station, several riveting stations, a riveting press station, and a discharging station are arranged sequentially on the riveting turntable. A riveting press cylinder that can move up and down is provided at the riveting station. A handling robot arm is provided between the shaping station and the feeding station.
2. The automatic shaping and riveting machine for motor stator cores according to claim 1, characterized in that: The handling robotic arm includes a translation slider, which extends towards the stator core and is equipped with clamping arms that grip the stator core from both sides.
3. The automatic shaping and riveting integrated machine for motor stator cores according to claim 1, characterized in that: An adjustment station is provided between the shaping station and the loading station. A rotating platform is provided at the adjustment station. A laser positioning sensor is provided above the rotating platform. The stator core is provided with positioning holes corresponding to the laser positioning sensor.
4. The automatic shaping and riveting machine for motor stator cores according to claim 3, characterized in that: A stepper motor is installed below the rotating platform.
5. The automatic shaping and riveting integrated machine for motor stator cores according to claim 3, characterized in that: The transport robotic arms are configured in two sets. One set of transport robotic arms transports the stator core between the shaping station and the adjustment station, while the other set of transport robotic arms transports the stator core between the adjustment station and the loading station.
6. The automatic shaping and riveting integrated machine for motor stator cores according to claim 1, characterized in that: The line connecting the shaping station and the loading station is perpendicular to the feeding chute. A loading push rod is provided on one side of the end of the feeding chute to push the stator core from the shaping station to the loading preparation station. The handling robot arm clamps and moves the stator core from the loading preparation station.
7. The automatic shaping and riveting machine for motor stator cores according to claim 1, characterized in that: Multiple riveting stations are arranged along the rotation direction of the riveting turntable. Each riveting station has a corresponding rivet hopper on its side, and the outlet of the rivet hopper is located between the riveting stations, where a riveting robot is installed.
8. The automatic shaping and riveting machine for motor stator cores according to claim 7, characterized in that: The rivets at the rivet hopper outlet are fed horizontally, the rivets on the stator core are riveted vertically, and the lower end of the riveting robot is equipped with a swing gripper that can swing between the horizontal and vertical directions.
9. The automatic shaping and riveting machine for motor stator cores according to claim 1, characterized in that: A discharge chute is provided on one side of the discharge station, and a handling robotic arm is provided between the discharge station and the discharge chute. A discharge push rod is provided at the front end of the discharge chute.
10. The automatic shaping and riveting machine for motor stator cores according to claim 9, characterized in that: A finished product stacking platform is provided on the side of the rear end of the discharge chute. On the other side of the rear end of the discharge chute opposite to the finished product stacking platform, a translation push rod is provided. The width of the translation push rod is the same as the width of the finished product stacking platform. A lifting baffle is also provided between the finished product stacking platform and the discharge chute. A gantry frame is provided above the lifting baffle, and a lifting cylinder is provided above the gantry frame.