Automatic riveting press for motor core stator and riveting method thereof

Abstract

The application discloses an automatic riveting press for motor iron core stator, comprising a rack, the rack is provided with a feeding mechanism, a main cylinder pressing mechanism, a pushing mechanism and a PLC controller; the feeding mechanism, the main cylinder pressing mechanism and the pushing mechanism are sequentially enclosed into a door frame structure and are respectively electrically connected with the PCL controller, so that the feeding, pressing and pushing processes are continuously and circularly automatically riveted and pressed according to preset timing and interlocking logic. The automatic riveting press for motor iron core stator shortens the workpiece circulation path, reduces the processing site and positioning error, and effectively improves the riveting precision and production efficiency. The application also discloses a riveting method of the automatic riveting press for motor iron core stator, which is simple in flow, clear in logic, reliable in control, can be directly adapted to the existing production line, low in modification difficulty, small in investment, quick in effect and easy to popularize.

Description

Technical Field

[0001] This invention relates to the technical field of motor core stator processing equipment, and in particular to an automatic riveting machine and riveting method for motor core stators, specifically applicable to the automated riveting processing of stator cores for small and medium-sized motors. Background Technology

[0002] In the manufacturing process of motor stator cores, riveting is a crucial step that determines the structural strength, dimensional accuracy, stacking coefficient, and overall motor performance of the core. Traditional stator core riveting production generally employs a semi-mechanized approach involving manual feeding, positioning, press control, and unloading. This method suffers from low production efficiency, inconsistent riveting depth, easy workpiece misalignment, high labor intensity, and high safety risks for operators, making it difficult to meet the requirements of large-scale, standardized production.

[0003] With the widespread adoption of automation technology in the motor manufacturing industry, automated or semi-automated riveting equipment is gradually replacing traditional manual operations. However, currently available automated stator core riveting equipment still generally suffers from numerous technical defects:

[0004] 1. The feeding mechanism relies on a forced pushing mechanism, which has a complex structure and high energy consumption;

[0005] 2. The workstation layout often adopts a rotary or decentralized layout, resulting in long workpiece flow paths and poor positioning accuracy;

[0006] 3. The lack of strict timing interlock control between the actuators can easily lead to malfunctions such as pressing before the material is fed in place or pushing the material before pressing is completed.

[0007] 4. The equipment's safety protection mechanism is inadequate, which can easily lead to risks such as fingers being pinched or molds being damaged.

[0008] 5. The overall level of automation is insufficient, making it difficult to achieve stable, continuous, standardized, and highly consistent stator core riveting production.

[0009] To address the aforementioned issues, the industry has proposed various automated riveting technology solutions. Among them, the patent technology with publication number CN102363195A, entitled "An Automatic Riveting Device for Motor Stator Cores," includes a punch press, a rotary lower die, an upper die riveting mechanism, and a PLC control system. It achieves multi-station operation through rotary indexing, and completes the automatic riveting operation in conjunction with the lower die pressing, thereby improving riveting efficiency and automation level to a certain extent.

[0010] However, the device adopts a rotary structure, which has a complex overall layout, is difficult to debug, has limited workstation turnover, and lacks precise timing coordination control between various actuators, thus failing to meet the needs of efficient and stable continuous production.

[0011] Meanwhile, the patent technology with publication number CN2634719Y and title "A Stator Core Stacking and Riveting Machine for Motors" uses hydraulic power to stack the core, and works with an outer circumferential rolling or wrench mechanism to complete the riveting of the pieces. It also uses PLC to achieve automatic control and workpiece ejection, realizing the integrated operation of stacking and riveting.

[0012] However, the equipment uses a rolling or snap-fit ​​riveting structure, which has limited reliability and consistency in riveting. The feeding and positioning methods are not simple enough, and the coordination of various action mechanisms is insufficient. Overall, the stability of operation and production efficiency are still significantly limited.

[0013] In summary, existing motor core stator riveting equipment and processes still suffer from problems such as insufficient automation, unreasonable structural layout, poor operational stability, inconsistent riveting quality, and inadequate safety protection. Summary of the Invention

[0014] To address the shortcomings of existing technologies, the core objective of this invention is to provide an automatic riveting machine for motor core stators. By sequentially assembling the feeding mechanism, main cylinder pressing mechanism, and pushing mechanism into a portal frame structure, this not only ensures a short production line flow path and allows for the orderly processing of more stators to be riveted within the same available space, but also achieves a fully automated closed-loop cycle of feeding, positioning, riveting, and discharging without manual intervention. One person can operate multiple machines, increasing production efficiency by more than three times compared to traditional methods (manual operation takes approximately 10-15 seconds per piece, while automation can achieve 3-5 seconds per piece). Furthermore, under the control of a PLC controller, the feeding, pressing, and discharging processes are strictly timed and interlocked, preventing malfunctions such as pressing before the material is fully fed or pushing before pressing is completed. This reduces the risk of jamming and mold damage, and extends mold life.

[0015] To achieve the above objectives, the present invention provides an automatic riveting machine for motor core stators, comprising a frame on which a feeding mechanism, a main cylinder pressing mechanism, a pushing mechanism, and a PLC controller are mounted. The feeding mechanism, the main cylinder pressing mechanism, and the pushing mechanism sequentially form a door frame structure and are electrically connected to the PLC controller, thereby enabling the feeding, pressing, and pushing processes to complete continuous and cyclical automated riveting production according to a preset timing sequence and interlocking logic.

[0016] Furthermore, the feeding mechanism includes a feeding guide rail, a first position sensor for detecting the signal of the stator to be riveted sliding down to the correct position, and a feeding cylinder for horizontally pushing the stator to be riveted, which slides down along the feeding guide rail by its own weight, to the main cylinder pressing mechanism; the feeding guide rail is inclined from top to bottom, so that the stator to be riveted slides down to the pushing position of the feeding cylinder by its own weight; the first position sensor is located on the outer front end of the feeding guide rail; the feeding cylinder is located on the outer end of the feeding guide rail, and its piston rod extends in a direction perpendicular to the feeding guide rail.

[0017] Furthermore, the main cylinder pressing mechanism includes a pressing track, a hydraulic cylinder, a main cylinder mold base, and a second position sensor for detecting the signal of the stator to be riveted being pushed into the main cylinder mold base; the front end of the pressing track is perpendicularly connected to the end of the feeding track, and its end is connected to the front end of the pushing mechanism; the hydraulic cylinder is located directly above the main cylinder mold base; the second position sensor is located on the outside of the main cylinder mold base.

[0018] Furthermore, the main cylinder mold base includes an upper mold base and a lower mold base; the upper mold base is located directly below the hydraulic cylinder;

[0019] The pressing track is located between the upper mold base and the lower mold base, and its front end is perpendicularly connected to the end of the feeding track, so that the stator to be riveted pushed by the feeding cylinder is smoothly and accurately pushed into the lower mold base.

[0020] Furthermore, the feeding mechanism includes a feeding track, a third sensor for detecting the signal that the stator to be riveted has completed riveting and is in position, and a feeding cylinder for pushing out the riveted stator; the front end of the feeding track is perpendicularly connected to the end of the pressing track; the third sensor is located on one side of the end of the pressing track; the feeding cylinder is located on the other side of the end of the pressing track, and its piston rod extends in a direction perpendicular to the pressing track.

[0021] Furthermore, the feeding track is inclined from top to bottom, so that the stator that has been riveted slides down under the push of the feeding cylinder and its own weight.

[0022] Furthermore, the main cylinder mold base is a replaceable mold base, which allows it to be adapted to stators of different specifications to be riveted.

[0023] Furthermore, the frame is also equipped with safety protection components; the safety protection components are one or more of the following: safety light curtain, emergency stop button, or overload protection device.

[0024] To address the shortcomings of the prior art, another objective of this invention is to provide a riveting method for an automatic riveting machine for motor core stators. This method features a simple process, clear logic, reliable control, direct compatibility with existing production lines, low modification difficulty, low investment, quick results, and ease of promotion.

[0025] To achieve the above objectives, the present invention provides a riveting method for an automatic riveting machine for motor core stators, comprising the following steps:

[0026] After the stator to be riveted is delivered to its position by the feeding mechanism, it is pushed to the station of the main cylinder pressing mechanism, and then the feeding mechanism is reset.

[0027] Once the main cylinder pressing mechanism detects that it has completed its positioning, the PLC controller controls the main cylinder pressing mechanism to press the stator to be riveted into shape, and then the main cylinder pressing mechanism returns to its original position.

[0028] The feeding mechanism detects that the riveted stator is in place, pushes the stator to the unloading channel, then resets the feeding mechanism and automatically enters the next cycle.

[0029] Furthermore, the stator to be riveted slides down the inclined feeding guide by its own weight. After the first position sensor detects that it is in position, the PLC controller controls the feeding cylinder to push the stator to be riveted to the station of the lower mold base.

[0030] After the second position sensor detects and positions the object, the PLC controller controls the hydraulic cylinder to drive the upper mold base to press down for riveting and forming. After holding the pressure for a set time, the hydraulic cylinder rises back to reset.

[0031] The third position sensor detects that the stator has been riveted and is in place. The PLC controller controls the pusher cylinder to push the stator to the unloading channel. After the pusher cylinder resets, it automatically enters the next cycle.

[0032] The automatic riveting machine for motor core stators described in this invention has the following advantages compared with the prior art:

[0033] 1. By sequentially assembling the feeding mechanism, main cylinder pressing mechanism, and pushing mechanism into a portal frame structure, not only is the production line's flow path short, but more stators to be riveted can be processed in an orderly manner within the same area. Simultaneously, it achieves a fully automated closed-loop cycle of feeding, positioning, riveting, and discharging, requiring no manual intervention. One person can operate multiple machines, increasing production efficiency by more than 3 times compared to traditional methods (manual operation takes approximately 10-15 seconds per piece, while automation can achieve 3-5 seconds per piece). Furthermore, the feeding, pressing, and discharging processes, under the control of the PLC controller, exhibit high coordination, strict timing linkage, and interlocking protection, preventing malfunctions such as pressing before feeding is in place or pushing before pressing is completed. This reduces the risk of jamming and mold damage, extending mold life.

[0034] 2. The feeding guide rail is inclined from top to bottom, allowing the stator to be riveted to complete the feeding operation by its own weight. This eliminates the need for a complex transmission mechanism, reducing energy consumption and failure rate, ensuring smooth feeding without jamming, and making operation more stable. Simultaneously, a primary position sensor collects the signal of the stator sliding into position in real time, ensuring the feeding cylinder accurately pushes the stator horizontally to the main cylinder pressing mechanism, guaranteeing subsequent pressing.

[0035] 3. The second position sensor is used to detect the signal of the stator to be riveted being pushed into the main cylinder mold seat, so that the main cylinder pressing mechanism can complete the pressing operation in a timely and accurate manner. It has strong real-time performance, smooth process, high efficiency, and is not prone to misalignment or displacement problems, thereby improving the quality of riveting.

[0036] 4. The main cylinder mold base adopts a replaceable structure, which can be quickly changed to adapt to stators of different specifications. It has strong versatility and meets the needs of flexible production of multiple varieties.

[0037] 5. The feeding track of the feeding mechanism is also set from top to bottom, so that the stator after riveting is pushed down by the feeding cylinder and its own weight, thus reducing energy consumption.

[0038] 6. The safety light curtain, emergency stop button, and overload protection device work in a triple linkage. When a person enters the danger zone, the equipment is overloaded, or an emergency shutdown occurs, all mechanisms will stop and reset immediately, effectively preventing work-related injuries and equipment damage.

[0039] 7. The riveting method is mature and stable, easy to promote, and the specific process flow is orderly, simple, logical, and reliable. It can be directly adapted to existing production lines, with low modification difficulty, small investment, and quick results. Attached Figure Description

[0040] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0041] Figure 1 This is a three-dimensional structural diagram of the automatic riveting machine for motor core stator described in an embodiment of the present invention;

[0042] Figure 2 This is a top view of the automatic riveting machine for motor core stator described in an embodiment of the present invention.

[0043] In the picture:

[0044] 1: Rack

[0045] 2: Feeding mechanism

[0046] 21: Feeding guide rail; 22: First position sensor; 23: Feeding cylinder

[0047] 3: Main cylinder pressing mechanism

[0048] 31: Pressing track; 32: Hydraulic cylinder; 33: Main cylinder mold base; 34: Second position sensor

[0049] 331: Upper mold base; 332: Lower mold base

[0050] 4: Pushing mechanism

[0051] 41: Feeding track; 42: Third sensor; 43: Pusher cylinder

[0052] 5: PLC controller

[0053] 6: Safety protection components

[0054] 61: Safety light curtain 62: Emergency stop button

[0055] 7: Stator to be riveted Detailed Implementation

[0056] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0057] Example:

[0058] like Figures 1-2 As shown, the automatic riveting machine for motor core stators of the present invention includes a frame 1, a feeding mechanism 2, a main cylinder pressing mechanism 3, a pushing mechanism 4, and a PLC controller 5. The feeding mechanism 2, the main cylinder pressing mechanism 3, the pushing mechanism 4, and the PLC controller 5 are respectively mounted on the frame 1, and the feeding mechanism 2, the main cylinder pressing mechanism 3, and the pushing mechanism 4 are electrically connected to the PLC controller, so that the feeding, pressing, and pushing processes complete continuous and cyclical automated riveting production according to a preset timing sequence and interlocking logic.

[0059] Among them, the feeding mechanism 2, the main cylinder pressing mechanism 3, and the pushing mechanism 4 sequentially form a door frame structure, forming a smooth stator processing station. The PLC controller 5 controls the feeding, positioning, riveting, and discharging operations in a unified manner according to the preset timing and interlocking logic.

[0060] The feeding mechanism 2 includes a feeding guide rail 21, a first position sensor 22, and a feeding cylinder 23. The feeding guide rail 21 is installed obliquely from top to bottom on the frame 1. The feeding guide rail 21 forms a guide channel inside that matches the shape of the stator 7 to be riveted, so that the stator 7 to be riveted can slide smoothly down the feeding guide rail 21 by its own weight without the need for additional power to push it, simplifying the structure and reducing energy consumption.

[0061] The first position sensor 22 is installed on the outer front end of the feeding guide rail 21 to detect in real time whether the stator 7 to be riveted has slid down to the preset push position and transmits the arrival signal to the PLC controller 5. The feeding cylinder 23 is fixedly installed on the outer end of the feeding guide rail 21, and its piston rod extends perpendicularly to the extension direction of the feeding guide rail 21. When the first position sensor 22 detects that the stator has arrived in place, the PLC controller 5 controls the feeding cylinder 23 to move, smoothly pushing the stator 7 to be riveted into the main cylinder pressing mechanism 3 in the horizontal direction, thus completing automatic feeding and positioning.

[0062] The main cylinder pressing mechanism 3 includes a pressing track 31, a hydraulic cylinder 32, a main cylinder mold base 33, and a second position sensor 34. The front end of the pressing track 31 is perpendicularly connected to the end of the feeding guide rail 21, and the end is smoothly connected to the front end of the pushing mechanism 4, ensuring that the stator flows smoothly between workstations without jamming.

[0063] The main cylinder mold base 33 includes an upper mold base 331 and a lower mold base 332. The upper mold base 331 and the lower mold base 332 adopt a detachable and replaceable structure. By replacing the mold base with different specifications, it can be adapted to the riveting processing of motor core stators of different sizes and models, thereby improving the equipment's versatility and flexible production capabilities.

[0064] The hydraulic cylinder 32 is vertically mounted directly above the main cylinder mold base 33, and its output end is fixedly connected to the upper mold base 331. It is used to drive the upper mold base 331 to move up and down, thereby achieving the riveting and forming of the stator 7 to be riveted. The second position sensor 34 is installed on the outside of the main cylinder mold base 33 to detect whether the stator 7 to be riveted has accurately entered the riveting position of the lower mold base 332. Only after the second position sensor 34 triggers the positioning signal will the PLC controller 5 allow the hydraulic cylinder 32 to perform the pressing action, thereby achieving interlock protection between feeding and pressing.

[0065] The feeding mechanism 4 includes a feeding track 41, a third position sensor 42, and a feeding cylinder 43. The feeding track 41 is inclined from top to bottom, and its front end connects to the end of the pressing track 31, so that the stator that has been riveted can slide down and be discharged quickly under the action of thrust and its own weight.

[0066] The third position sensor 42 is installed on one side of the end of the pressing track 31 to detect whether the riveted stator has reached the pushing position. The pushing cylinder 43 is installed on the other side of the end of the pressing track 31, with its piston rod extending perpendicular to the pressing track 31. When the third position sensor 42 detects that the finished stator is in place and the hydraulic cylinder 32 has returned to its original position, the PLC controller 5 controls the pushing cylinder 43 to extend and smoothly push the finished stator to the unloading track 41 to complete the automatic unloading. Then the pushing cylinder 43 resets and waits for the next cycle.

[0067] The safety protection component 6 includes a safety light curtain 61, an emergency stop button 62, or an overload protection device (not shown in the figure), which together constitute a three-level safety protection system to comprehensively protect the safety of operators and equipment. In practice, one or two of the three components can be selected according to requirements.

[0068] The safety light curtain 61 is installed directly in front of the equipment operating station to form a safety light curtain covering the riveting area. When the operator's hand or other foreign object enters the light curtain's obstruction range, the safety light curtain 61 immediately sends a trigger signal to the PLC controller 5. After receiving the signal, the PLC controller 5 immediately controls all actuators to stop operating and forcibly resets them to avoid safety accidents such as hand crushing or pinching.

[0069] The emergency stop button 62 is located in a prominent position on the equipment operation panel. It adopts a normally closed forced trigger structure. When the equipment malfunctions or an emergency occurs, the operator can press the emergency stop button 62 to directly cut off the equipment safety circuit, causing the entire machine to stop immediately and remain stationary until the fault is cleared and the emergency stop button is reset, at which point the equipment can be restarted.

[0070] The overload protection device is linked to the hydraulic system of the hydraulic cylinder 32 to monitor the working pressure during the riveting process in real time. When the pressure exceeds the preset safety threshold due to abnormal workpiece stacking, positioning deviation, or mold jamming, the overload protection device outputs a protection signal to the PLC controller 5. The PLC controller 5 immediately controls the hydraulic cylinder 32 to stop pressing down and actively rise and reset to prevent damage to the mold, stator workpiece, and equipment structure. At the same time, it can be used in conjunction with audible and visual alarms to indicate the fault status.

[0071] The specific process of the riveting method for the automatic riveting machine used for motor core stators described in this embodiment is as follows:

[0072] Initial state: Hydraulic cylinder 32 is in the upper limit position, feeding cylinder 23 and pushing cylinder 43 are both in the retracted return position, and the first sensor 22, the second sensor 34 and the third sensor 42 are all in the ready-to-trigger state.

[0073] Automatic feeding: The stator 7 to be riveted slides down the inclined feeding guide 21 by its own weight. After the first position sensor 22 detects that it is in position, the PLC controller 5 controls the feeding cylinder 23 to extend and push the stator into the lower mold base 332. Then the feeding cylinder 23 retracts back to its original position.

[0074] Positioning and riveting: The second position sensor 34 detects that the stator is in place when it enters the mold. The PLC controller 5 controls the hydraulic cylinder 32 to drive the upper mold base 331 to move downward to rivet the stator 7 to be riveted. After riveting is in place, the pressure is held for 0.5 seconds to 1 second to ensure the riveting strength and consistency. After the pressure is held, the hydraulic cylinder 32 rises back to the upper limit position to reset.

[0075] Automatic feeding: When the third position sensor 42 detects that the riveted stator has been placed in place, the PLC controller 5 controls the pusher cylinder 43 to extend and push the finished stator to the inclined feeding track 41 (the inclination angle is controlled between 5-45 degrees, usually 30-40 degrees is selected as the natural angle, and the actual sliding is slightly adjusted according to the product's own gravity to ensure smooth and stable production). The stator slides down along the feeding track 41 to the receiving area, and the pusher cylinder 43 then retracts back to its original position.

[0076] Cyclic production: After all actuators have been reset, the system automatically enters the next work cycle, continuously realizing the continuous automated riveting process of the stator to be riveted.

[0077] Safety protection: Throughout the entire operation of the equipment, the safety light curtain 61, emergency stop button 62, and overload protection device are monitored in real time. If any protection signal is triggered, the equipment will stop and reset immediately to ensure production safety.

[0078] This embodiment, through its innovative overall design employing inclined guide rail self-weight feeding, a door-frame-shaped linear workstation layout, three-point sensor positioning, PLC timing interlock control, hydraulic pressure holding and riveting, and three-level safety protection, offers the following advantages:

[0079] To address the shortcomings of existing equipment, such as complex feeding mechanisms, high energy consumption, and poor feeding stability, this invention innovatively adopts an inclined feeding guide rail 21 (the inclination angle is controlled between 5-45 degrees, usually 30-40 degrees is selected as the natural angle, and in practice, the downward movement is finely adjusted according to the product's own weight to ensure smooth and stable production). The feeding is completed by the downward movement of its own weight, eliminating the need for a complex forced pushing mechanism, significantly simplifying the equipment structure, reducing energy consumption, and making stator feeding smoother, more stable, and more reliable.

[0080] In response to the shortcomings of existing equipment, such as unreasonable workstation layout, long workpiece flow path, large cumulative error, and low production cycle, this invention innovatively adopts a workstation layout in which feeding-pressing-pushing are sequentially connected in a straight line to form a door frame shape. This shortens the workpiece flow path, reduces the processing area, and reduces positioning errors, effectively improving riveting accuracy and production efficiency.

[0081] To address the shortcomings of existing equipment, such as uncoordinated actions of various actuators, lack of timing interlocks, and susceptibility to malfunctions and material jamming, this invention innovatively employs a timing interlock control system consisting of a first sensor 22, a second sensor 34, and a third sensor 42 in conjunction with a PLC controller 5. This ensures that material is fed into place before pressing and that material is pushed out after pressing is completed, fundamentally avoiding problems such as malfunctions, material jamming, and mold pressing, thus significantly improving the stability of equipment operation.

[0082] To address the shortcomings of existing riveting processes, such as discontinuous processes, lack of pressure control, and poor consistency in riveting accuracy, this invention innovatively adopts a fully automatic closed-loop riveting process and hydraulic constant force pressure holding, which makes the riveting depth uniform and the stacking accuracy high, significantly improving the pass rate and consistency of stator core products.

[0083] In response to the shortcomings of existing equipment safety protection mechanisms and potential safety hazards, this invention innovatively sets up a three-level linkage safety protection system consisting of a safety light curtain, an emergency stop button, and overload protection. This system enables rapid shutdown and mechanism reset under abnormal operating conditions, comprehensively ensuring the personal safety of operators and protecting the mold and equipment from damage.

[0084] Through the above-mentioned innovative structure and process, this embodiment truly realizes the automated continuous riveting production of motor core stators with high efficiency, stability, high precision and high safety, and the overall performance is significantly better than traditional equipment and existing technology.

[0085] The embodiments described above are merely for illustrating the technical ideas and features of this invention. Their purpose is to enable those skilled in the art to understand the content of this invention and implement it accordingly. They should not be used to limit the scope of protection of this invention. That is, all equivalent changes or modifications made in accordance with the spirit of this invention should still be covered within the scope of protection of this invention.

Claims

1. An automatic riveting machine for motor core stators, comprising a frame, characterized in that: The frame is equipped with a feeding mechanism, a main cylinder pressing mechanism, a pushing mechanism, and a PLC controller. The feeding mechanism, main cylinder pressing mechanism, and pushing mechanism are sequentially arranged to form a door frame structure, and are electrically connected to the PCL controller, so that the feeding, pressing and pushing processes complete continuous and cyclic automated riveting production according to the preset timing and interlocking logic.

2. The automatic riveting machine for motor core stators according to claim 1, characterized in that: The feeding mechanism includes a feeding guide rail, a first position sensor for detecting the signal of the stator to be riveted sliding down to the position, and a feeding cylinder for horizontally pushing the stator to be riveted, which slides down to the position along the feeding guide rail by its own weight, to the main cylinder pressing mechanism. The feeding guide rail is inclined from top to bottom, so that the stator to be riveted slides down to the pushing position of the feeding cylinder by its own weight. The first position sensor is located on the outer front end of the feeding guide rail; The feeding cylinder is located on the outer side of the end of the feeding guide rail, and its piston rod extends in a direction perpendicular to the feeding guide rail.

3. The automatic riveting machine for motor core stators according to claim 2, characterized in that: The main cylinder pressing mechanism includes a pressing track, a hydraulic cylinder, a main cylinder mold base, and a second position sensor for detecting the signal of the stator to be riveted being pushed into the main cylinder mold base; The front end of the pressing track is perpendicularly connected to the end of the feeding track, and its end is connected to the front end of the pushing mechanism. The hydraulic cylinder is located directly above the main cylinder mold base; The second position sensor is located on the outside of the main cylinder mold base.

4. The automatic riveting machine for motor core stators according to claim 3, characterized in that: The main cylinder mold base includes an upper mold base and a lower mold base; The upper mold base is located directly below the hydraulic cylinder; The pressing track is located between the upper mold base and the lower mold base, and its front end is perpendicularly connected to the end of the feeding track, so that the stator to be riveted pushed by the feeding cylinder is smoothly and accurately pushed into the lower mold base.

5. The automatic riveting machine for motor core stators according to claim 3, characterized in that: The feeding mechanism includes a feeding track, a third sensor for detecting the signal that the stator to be riveted has completed riveting and is in position, and a feeding cylinder for pushing out the stator that has completed riveting. The front end of the feeding track is perpendicularly connected to the end of the pressing track; The third sensor is located on one side of the end of the pressing track; The pusher cylinder is located on the other side of the end of the pressing track, and its piston rod extends in a direction perpendicular to the pressing track.

6. The automatic riveting machine for motor core stators according to claim 5, characterized in that: The feeding track is inclined from top to bottom, so that the stator that has been riveted slides down under the push of the feeding cylinder and its own weight.

7. The automatic riveting machine for motor core stators according to claim 3 or 4, characterized in that: The main cylinder mold base is a replaceable mold base, which allows it to be adapted to stators of different specifications to be riveted.

8. The automatic riveting machine for motor core stators according to claim 1, characterized in that: The rack is also equipped with safety protection components; The safety protection component is one or more of the following: a safety light curtain, an emergency stop button, or an overload protection device.

9. A riveting method for an automatic riveting machine for motor core stators according to any one of claims 1 to 8, characterized in that, Includes the following steps: After the stator to be riveted is delivered to its position by the feeding mechanism, it is pushed to the station of the main cylinder pressing mechanism, and then the feeding mechanism is reset. Once the main cylinder pressing mechanism detects that it has completed its positioning, the PLC controller controls the main cylinder pressing mechanism to press the stator to be riveted into shape, and then the main cylinder pressing mechanism returns to its original position. The feeding mechanism detects that the riveted stator is in place, pushes the stator to the unloading channel, then resets the feeding mechanism and automatically enters the next cycle.

10. The riveting method of the automatic riveting machine for motor core stators according to claim 9, characterized in that, The specific steps are as follows: The stator to be riveted slides down the inclined feeding guide by its own weight. After the first position sensor detects that it is in position, the PLC controller controls the feeding cylinder to push the stator to be riveted to the station of the lower mold base. After the second position sensor detects the positioning is complete, the PLC controller controls the hydraulic cylinder to drive the upper mold base to press down for riveting and forming. After the pressure is held for a set time, the hydraulic cylinder rises back to reset. The third position sensor detects that the stator has been riveted and is in place. The PLC controller controls the pusher cylinder to push the stator to the unloading channel. After the pusher cylinder resets, it automatically enters the next cycle.

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