Rotor press-fitting equipment integrated with detection function and press-fitting method of rotor press-fitting equipment

Abstract

The invention discloses rotor press-fitting equipment integrated with a detection function and a press-fitting method of the rotor press-fitting equipment. The rotor press-fitting equipment is characterized by further comprising a workpiece bearing table, a transferring device, at least one clamping actuator, a cleaning device, a compaction device, a detection device, a marking device and a control system, wherein the cleaning device, the compaction device, the detection device, the marking device and the control system are arranged on a rack; the cleaning device, the compaction device, the detection device and the marking device which are integrated on the rack are cooperatively arranged, a plurality of procedures such as feeding, cleaning, compaction, detection and marking are integrated in the same equipment, and the rotor laminations are driven by the transfer device to automatically flow among the stations of the workpiece bearing table; meanwhile, due to the arrangement of the multiple clamping actuators, the system can clamp the rotor laminations on the multiple stations at the same time to move synchronously, parallel execution of procedures such as feeding, cleaning, compacting, detecting and marking is achieved, and the production takt time and the equipment utilization rate are remarkably improved.

Description

A rotor pressing device with integrated detection function and its pressing method Technical Field

[0001] This invention relates to the field of motor core manufacturing technology, specifically to a rotor pressing device with integrated testing functions and its pressing method. Background Technology

[0002] As the core rotating component of an electric motor, the manufacturing quality of the rotor, especially the compactness, appearance quality, and traceability of the laminations, directly determines the motor's performance, efficiency, and operational reliability. Traditional rotor pressing processes typically rely on multiple independent machines or extensive manual operations to complete the process in stages. For example, manual or simple robotic arms are used for lamination stacking and transfer, an independent press is used for axial compaction, manual visual inspection or offline dimensional inspection is performed, and finally, manual marking or separate labeling is applied.

[0003] This decentralized operation mode has many drawbacks: First, frequent workpiece handling and repositioning between processes are not only inefficient and labor-intensive, but also prone to workpiece damage or secondary contamination; second, the cycle times of each process are difficult to match, resulting in poor production flow, with overall capacity limited by the slowest link, making it difficult to achieve efficient continuous production; third, manual inspection and judgment are highly subjective, making it difficult to guarantee quality consistency, and lacking effective end-to-end data traceability capabilities. With the rapid development of industrial automation and intelligent manufacturing technologies, the market demand for integrated rotor press-fitting solutions that can achieve high precision, high efficiency, and high consistency is increasingly urgent. Therefore, this invention proposes a rotor press-fitting device and its press-fitting method with integrated detection functions. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems by proposing a rotor pressing device and pressing method with integrated detection function.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotor pressing device and pressing method integrating detection functions, comprising a frame, characterized in that: it further comprises a workpiece bearing platform disposed on the frame, a transfer device disposed on the frame for transferring rotor laminations between different stations on the workpiece bearing platform, at least one clamping actuator disposed on the transfer device for clamping the rotor laminations, at least one cleaning device disposed on the frame for cleaning the rotor laminations, a compaction device disposed on the frame for axially compacting the stacked rotor laminations, a detection device disposed on the frame for detecting the appearance of the rotor laminations, a marking device disposed on the frame for marking the rotor after pressing, and a control system electrically connected to the transfer device, clamping actuator, cleaning device, compaction device, detection device and marking device respectively for controlling the coordinated operation of each component; the workpiece bearing platform is provided with multiple stations for workpiece flow, including at least a loading station, a cleaning station, a compaction station, a detection station and a marking station.

[0006] More preferably, the transfer device includes a drive mechanism that enables the gripper to move independently in two mutually perpendicular directions in a horizontal plane. The drive mechanism includes a first linear module for driving the gripper to move along a first horizontal direction and a second linear module for driving the gripper to move along a second horizontal direction perpendicular to the first horizontal direction.

[0007] More preferably, the compaction device includes a gantry frame mounted on the machine frame, a drive motor mounted on the gantry frame, a hollow rotating shaft connected to the output shaft of the drive motor, a compaction die head driven to rotate by the hollow rotating shaft and matching the shape of the rotor, a plurality of guide rods slidably connected to the gantry frame and distributed around the hollow rotating shaft, a drive plate connected to one end of the guide rods, a connecting rod disposed inside the hollow rotating shaft and connected to the compaction die head for accommodating the floating of the compaction die head, and a lifting device disposed at the bottom of the machine frame and directly below the compaction die head for driving the rotor laminations to rotate and rise.

[0008] More preferably, the compaction device includes a gantry frame mounted on the machine frame, a drive motor mounted on the gantry frame, a hollow rotating shaft connected to the output shaft of the drive motor, a compaction die head driven to rotate by the hollow rotating shaft and matching the shape of the rotor, a plurality of guide rods slidably connected to the gantry frame and distributed around the hollow rotating shaft, a drive plate connected to one end of the guide rods, a connecting rod disposed inside the hollow rotating shaft and connected to the compaction die head for accommodating the floating of the compaction die head, and a lifting device disposed at the bottom of the machine frame and directly below the compaction die for driving the rotor laminations to rotate and rise.

[0009] More preferably, the lifting device includes a second drive motor, a lead screw driven by the second drive motor, and an end plate disposed at the top of the lead screw for driving the rotor laminations to rotate and rise.

[0010] More preferably, the cleaning device is an air washing device, including a conveying riser vertically mounted on a frame, a linear drive mechanism mounted on the conveying riser, a protective cylinder driven by the linear drive mechanism to perform lifting and lowering movements, and a nozzle mounted inside the protective cylinder and connected to the conveying riser through a pipeline.

[0011] More preferably, the detection device includes a bracket mounted on a frame, at least one industrial camera mounted on the bracket, and a light source for providing illumination to the industrial camera.

[0012] More preferably, the workpiece support platform is provided with a position correction device on the side corresponding to the marked workstation. The position correction device includes a drive component installed on the workpiece support platform and a push plate connected to the output end of the drive component for pushing the rotor laminations and correcting their circumferential position.

[0013] In a further preferred embodiment, the workpiece support platform has several through holes corresponding to the cleaning station and the compaction station, each with an inner diameter larger than that of the rotor laminations and a smaller outer diameter.

[0014] A rotor pressing method integrating detection function, characterized in that the pressing method is as follows: S1. Loading step: Placing the rotor laminations on the loading station of the workpiece support table; S2. Coordinated transfer step: The control system controls the transfer device and at least one clamping actuator to synchronously perform the transfer operation, so that each clamping actuator performs at least one of the following transfer actions within the same time window: S21. Transferring the rotor laminations located at the loading station to the cleaning station; S22. Transferring the rotor laminations located at the cleaning station to the compaction station; S23. Transferring the rotor laminations located at the compaction station to the detection station; S24. Transferring the rotor laminations located at the detection station to the marking station; S3. Synchronous processing step: Once each rotor lamination is positioned at its corresponding station, the control system synchronously or sequentially initiates the following processing operations: S31. Control the cleaning device to clean the rotor lamination located at the cleaning station; S32. Control the compaction device to axially compact the rotor lamination located at the compaction station; S33. Control the inspection device to perform appearance quality inspection on the rotor lamination located at the inspection station; S34. Control the marking device to mark the rotor lamination located at the marking station. Through the coordinated scheduling of steps S2 and S3, the processing time periods for cleaning, compaction, inspection, and marking are staggered with the time periods for transfer operations, achieving parallel production.

[0015] The beneficial effects of this invention are as follows: By coordinating the cleaning device, compaction device, detection device, and marking device integrated on the frame, multiple processes such as feeding, cleaning, compaction, detection, and marking are integrated into the same equipment. The rotor laminations are automatically transferred between various stations on the workpiece support platform by the transfer device. At the same time, the setting of multiple clamping actuators allows the system to clamp the rotor laminations on multiple stations simultaneously and move them synchronously, realizing the parallel execution of processes such as feeding, cleaning, compaction, detection, and marking, which significantly improves the production cycle and equipment utilization rate. It realizes the fully automated and continuous production of rotor pressing from blank to finished product, greatly improving production efficiency and system integration, and significantly reducing manual intervention and waiting and turnaround time between processes. The compaction device adopts a structure in which the compaction die head and the lifting device work together. The lifting device uses a lead screw to rotate and smoothly raise the end plate, allowing the rotor laminations to approach the compaction die head at a uniform speed. Once the rotor laminations contact the compaction die head, a drive motor rotates the hollow shaft and the compaction die head, achieving rotational compaction of the rotor laminations while continuously lifting. Simultaneously, a buffer guide structure composed of connecting rods and guide rods effectively reduces the impact on the compaction die head during lifting, ensuring smooth and uniform compaction and improving the quality and consistency of the pressing process. The detection device uses a bracket to position an industrial camera on the top and sides of the rotor laminations, allowing its shooting angle to cover the circumference and top area of ​​the rotor. Combined with illumination from a light source, this ensures uniform lighting and clear imaging within the detection area. Meanwhile, the inspection device 7, combined with machine vision algorithms, can achieve all-round automated inspection of the appearance, alignment, and surface defects of the rotor laminations, significantly improving inspection accuracy and consistency, effectively replacing traditional manual visual inspection, and improving production efficiency and quality traceability. The position correction device drives the push plate through the drive component to apply radial force to the outer circumference of the rotor, causing it to move in a controllable micro-amplitude, thereby accurately correcting the rotor laminations to the predetermined marking position of the marking device 8. This solves the problem of circumferential random offset that may occur during feeding, transfer, or compaction, ensuring that the laser marking position on each product is exactly the same, greatly improving the standardization and normalization of product appearance. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the workpiece support platform, clamping actuator and position correction device of the present invention; Figure 3 is a schematic diagram of the cleaning device of the present invention; Figure 4 is a schematic diagram of the compaction device of the present invention; Figure 5 is a schematic diagram of a partial structure of the compaction device of the present invention; Figure 6 is a schematic diagram of the compaction device of the present invention; Figure 7 is a schematic diagram of the lifting device of the present invention; Figure 8 is a schematic diagram of the usage state of the present invention.

[0017] Legend: 1. Frame; 2. Workpiece support platform; 21. Through hole; 3. Transfer device; 31. First linear module; 32. Second linear module; 4. Clamping actuator; 5. Cleaning device; 51. Conveying riser; 52. Linear drive mechanism; 53. Protective cylinder; 54. Nozzle; 6. Compaction device; 61. Gantry frame; 62. Drive motor one; 63. Hollow rotating shaft; 64. Compaction die head; 65. Guide rod; 66. Drive plate; 67. Connecting rod; 68. Lifting device; 681. Drive motor two; 682. Lead screw; 683. End plate; 7. Detection device; 71. Support; 72. Industrial camera; 73. Light source; 8. Marking device; 9. Position correction device; 91. Drive component; 92. Push plate. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings, further illustrates the rotor pressing equipment and pressing method with integrated detection functions according to the present invention.

[0019] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Referring to Figures 1-8, a rotor pressing device and method integrating detection functions are disclosed, comprising a frame 1. The device further comprises: a workpiece support platform 2 mounted on the frame 1; a transfer device 3 mounted on the frame 1 for transferring rotor laminations between different stations on the workpiece support platform 2; at least one clamping actuator 4 mounted on the transfer device 3 for clamping the rotor laminations; at least one cleaning device 5 mounted on the frame 1 for cleaning the rotor laminations; a compaction device 6 mounted on the frame 1 for axially compacting the stacked rotor laminations; a detection device 7 mounted on the frame 1 for detecting the appearance of the rotor laminations; a marking device 8 mounted on the frame 1 for marking the rotor after pressing; and a control system electrically connected to the transfer device 3, clamping actuator 4, cleaning device 5, compaction device 6, detection device 7, and marking device 8 for controlling the coordinated operation of each component. The workpiece support platform 2 is provided with multiple stations for workpiece flow, including at least a loading station, a cleaning station, a compaction station, a detection station, and a marking station. Each workstation is arranged in a rectangular sequence along the length of the workpiece support platform 2; the workpiece support platform 2 has several through holes 21 on the corresponding cleaning and compaction workstations, which are larger than the inner diameter of the rotor laminations and smaller than their outer diameter.

[0022] The frame 1 is welded from square tubing and iron plates, providing sufficient structural rigidity and stability. The workpiece support platform 2 is mounted on the platform of the frame 1, with its installation height matching the working height of the clamping actuator 4, facilitating horizontal gripping and placement operations. The transfer device 3 drives the clamping actuator 4 to move horizontally, enabling automatic transfer of the rotor laminations between workstations. The clamping actuator 4 is preferably a pneumatic gripper, with a gripping surface on its inner side adapted to the shape of the outer edge of the rotor laminations. The number of clamping actuators 4 can be one less than the number of workstations. When the transfer device 3 simultaneously positions multiple clamping actuators 4 to a preset workstation, the control system controls the pneumatic gripper to clamp the rotor laminations from both sides, achieving reliable gripping. The cleaning device 5 is located above the cleaning station and is used to clean the surface of the rotor laminations. The compaction device 6 is located at the compaction station and is used to axially rotate and compact the stacked rotor laminations. The inspection device 7 is installed above the inspection station and is used for automated visual inspection of the compacted rotor laminations, checking for appearance, alignment, and defects. The marking device 8 is a laser marking device installed on the frame 1 at the corresponding marking station, used to engrave permanent marking information on the surface of the qualified rotors. The control system is integrated into the electrical control cabinet, using a programmable logic controller or industrial computer as the control core. It has functions for setting process parameters, coordinating motion, monitoring status, recording data, and providing alarm prompts, achieving fully automatic and high-precision operation of the entire system.

[0023] By coordinating the cleaning device 5, compaction device 6, inspection device 7, and marking device 8 integrated on the frame 1, multiple processes such as feeding, cleaning, compaction, inspection, and marking are integrated into the same equipment. The rotor laminations are automatically transferred between various stations on the workpiece carrier platform 2 by the transfer device 3. At the same time, the setting of multiple clamping actuators 4 enables the system to clamp the rotor laminations on multiple stations simultaneously and move them synchronously, realizing the parallel execution of processes such as feeding, cleaning, compaction, inspection, and marking, which significantly improves the production cycle and equipment utilization rate. The entire process of rotor pressing from blank to finished product is automated and continuous, which greatly improves production efficiency and system integration, and significantly reduces manual intervention and waiting and turnaround time between processes.

[0024] Referring to Figure 2, the transfer device 3 includes a drive mechanism that enables the clamping actuator 4 to move independently in two mutually perpendicular directions in the horizontal plane; the drive mechanism includes a first linear module 31 for driving the clamping actuator 4 to move in the first horizontal direction and a second linear module 32 for driving the clamping actuator 4 to move in the second horizontal direction perpendicular to the first horizontal direction.

[0025] The first linear module 31 is arranged laterally along one side of the frame 1, and its guiding direction is parallel to the length direction of the workpiece support platform 2. It is used to horizontally move the clamping actuator 4 between different workstations. The second linear module 32 is mounted on the first linear module 31, and the clamping actuator 4 is fixed on the second linear module 32. The guiding direction of the second linear module 32 is perpendicular to the first linear module 31. It is used to drive the clamping actuator 4 to extend or retract in a direction perpendicular to the production line, thereby realizing the pick-and-place operation of the rotor laminations.

[0026] When the transfer device 3 is working, the clamping actuator 4 moves to above the target station under the drive of the first linear module 31; then the second linear module 32 moves, driving the clamping actuator 4 to extend above the workpiece carrier 2 to perform gripping or placing operations; after completion, it retracts and is then transferred to the next position by the first linear module 31. This structure realizes precise positioning and transfer functions with two-axis linkage in the horizontal plane, adapting to the automated flow requirements between multiple workstations.

[0027] Referring to Figures 4-6, the compaction device 6 includes a gantry frame 61 mounted on the frame 1, a drive motor 62 mounted on the gantry frame 61, a hollow rotating shaft 63 connected to the output shaft of the drive motor 62, a compaction die head 64 driven to rotate by the hollow rotating shaft 63 and matching the shape of the rotor, a plurality of guide rods 65 slidably connected to the gantry frame 61 and distributed around the hollow rotating shaft 63, a drive plate 66 connected to one end of the guide rods 65, a connecting rod 67 mounted inside the hollow rotating shaft 63 and connected to the compaction die head 64 to accommodate the floating of the compaction die head 64, and a lifting device 68 mounted at the bottom of the frame 1 and directly below the compaction die head 64 to drive the rotor laminations to rotate and rise. The lifting device 68 includes a second drive motor 681, a lead screw 682 driven by the second drive motor 681, and an end plate 683 mounted at the top of the lead screw 682 to push the rotor laminations to rotate and rise.

[0028] The gantry frame 61 is fixedly installed on the frame 1, spanning above the compaction station; the drive motor 62 is fixed to the top of the gantry frame 61 via a mounting base; the hollow shaft 63 is rotatably mounted on the gantry frame 61 via bearing support, and has a pulley on its upper part, connected to the output shaft of the drive motor 62 via a synchronous belt; the compaction die head 64 is connected to the lower end of the hollow shaft 63, and its lower surface shape matches the top shape of the rotor laminations to be compacted; the several guide rods 65 are evenly distributed circumferentially and pass through linear bearings on the gantry frame 61, and can slide vertically; the drive plate 66 is fixedly connected to the lower ends of all the guide rods 65; the connecting rod 67 passes through the hollow shaft 61. Inside the hollow cavity of 3, its upper end is connected to the drive plate 66, and its lower end is connected to the compaction die head 64. The connecting rod 67 is equipped with a buffer spring or floating mechanism, which allows the compaction die head 64 to have a certain amount of axial floating to adapt to the unevenness of the laminated surface. The lifting device 68 is set at the bottom of the frame 1 and directly below the compaction die head 64. It includes a second drive motor 681, a lead screw 682, and an end plate 683. The second drive motor 681 is fixed at the bottom of the frame 1, and its output shaft is connected to the vertically arranged lead screw 682. The end plate 683 is installed on the lead screw 682 through a threaded pair and can be raised and lowered with the rotation of the lead screw 682. The upper surface of the end plate 683 is provided with a positioning structure for positioning and supporting the rotor laminates.

[0029] During operation, the transfer device 3 precisely places the pre-stacked rotor lamination assembly into the compaction station. At this time, the end plate 683 of the lifting device 68 is in the lowest safe position, and the compaction die head 64 is also at the lowest point of its stroke under its own weight.

[0030] The control system commands the start of motor 681, which drives the lead screw 682 to rotate, causing the end plate 683 to rise smoothly. The end plate 683 passes through the through hole 21 on the workpiece support platform 2, contacts and lifts the rotor laminations located on the workpiece support platform 2, and continues to rise. As the rotor laminations rise, they will eventually contact the lower surface of the compaction die head 64 at its lowest point. During this process, the positioning structure on the upper surface of the end plate 683 cooperates with the lower end face of the rotor to achieve initial axial and circumferential alignment.

[0031] When the rotor laminations contact the compaction die head 64, drive motor 62 starts, driving the hollow shaft 63 and the connected compaction die head 64 to begin rotating. Simultaneously, drive motor 681 of the lifting device 68 continues to operate, applying a stable upward lifting force to the rotor laminations through the lead screw 682 and end plate 683, and driving their rotation. At this point, the core compaction stage begins: the rotating compaction die head 64, under the continuous upward lifting force, applies rotational compaction to the rotor laminations. During this process, drive plate 66 can float upward along guide rod 65, and connecting rod 67 and its internal floating mechanism allow the compaction die head 64 to adapt to minor unevenness on the upper surface of the rotor laminations, ensuring a uniform distribution of compaction force.

[0032] The compaction device 6 adopts a structure in which the compaction die head 64 and the lifting device 68 work together. The lifting device 68 drives the end plate 683 to rise smoothly through the rotation of the lead screw 682, so that the rotor laminations approach the compaction die head 64 at a uniform speed. After the rotor laminations contact the compaction die head 64, the drive motor 62 drives the hollow rotating shaft 63 and the compaction die head 64 to rotate, realizing the rotational compaction of the rotor laminations while continuously lifting. At the same time, the buffer guide structure formed by the connecting rod 67 and the guide rod 65 effectively reduces the impact on the compaction die head 64 during the lifting process, ensuring that the compaction action is smooth and uniform, and improving the pressing quality and consistency.

[0033] Referring to Figure 3, the cleaning device 5 is an air washing device, including a conveying riser 51 vertically mounted on the frame 1, a linear drive mechanism 52 mounted on the conveying riser 51, a protective cylinder 53 driven by the linear drive mechanism 52 to perform lifting and lowering movements, and a nozzle 54 disposed inside the protective cylinder 53 and connected to the conveying riser 51 through a pipeline.

[0034] The cleaning device 5 is an air-washing device, mainly used to blow away dust and debris from the surface of the rotor laminations before pressing and / or after inspection. In actual layout, one cleaning device 5 can be set before the compaction station and / or after the inspection station, depending on process requirements, to ensure the cleanliness of the rotor laminations before and after key processes.

[0035] The conveying riser 51 serves as an air supply channel, with its lower end connected to an external clean air source. The linear drive mechanism 52 specifically includes a driver (e.g., a servo motor or cylinder), a guide rail, and a slider connected to the output end of the driver. The slider is fixedly connected to the outer wall of the protective cylinder 53, and the driver drives the slider to move linearly along the guide rail, thereby driving the protective cylinder 53 to move up and down precisely. The protective cylinder 53 is a cylindrical structure with an open bottom. When it descends, it can completely cover the rotor laminations located at the cleaning station, forming a relatively sealed working space, effectively preventing pollutants from splashing around during the purging process and maintaining a clean working environment. The nozzle 54 is installed inside the protective cylinder 53 at the top or side wall and is connected to the conveying riser 51 through a flexible pressure-resistant pipeline, used to guide clean gas to the surface of the rotor laminations.

[0036] During operation, the transfer device 3 delivers the rotor laminations to the cleaning station and positions them. Then, the control system instructs the linear drive mechanism 52 to actuate, driving the protective cylinder 53 to descend until its bottom is either flush with or nearly closed against the surface of the workpiece support platform 2, enveloping the rotor laminations. Next, the control system opens the air valve, and clean compressed gas is delivered to the nozzle 54 via the delivery riser 51, spraying it onto the surface of the rotor laminations at a specific pressure and angle for efficient cleaning. After the cleaning process has lasted for a preset time, the air valve closes, and the linear drive mechanism 52 drives the protective cylinder 53 to rise and reset. Finally, the transfer device 3 transfers the cleaned rotor laminations to the next process.

[0037] Referring to Figure 7, the detection device 7 includes a bracket 71 mounted on the frame 1, at least one industrial camera 72 mounted on the bracket 71, and a light source 73 for providing illumination to the industrial camera 72.

[0038] The bracket 71 is constructed from high-rigidity aluminum alloy profiles or welded steel structures, and is securely bolted to the corresponding position on the frame 1 at the inspection station. The bracket 71 is designed as a gantry or cantilever structure, possessing sufficient structural stability and installation space to ensure no vibration or deformation occurs during equipment operation, providing a stable reference platform for image acquisition. The height and span of the bracket 71 can be adjusted according to the inspection requirements of rotor laminations of different specifications, exhibiting good adaptability.

[0039] The industrial camera 72 includes a top camera and a side camera, respectively mounted on the crossbeam and lateral column of the bracket 71. Their installation positions are precisely calculated and adjusted to ensure that the top camera's field of view completely covers the top compacted area of ​​the rotor laminations, while the side camera's field of view covers the alignment and appearance of the rotor laminations' sides. The industrial camera 72 uses a high-resolution CMOS or CCD sensor camera, equipped with a suitable industrial lens, capable of acquiring clear images of the rotor lamination surface at a high frame rate. The camera connects to the image processing system via Gigabit Ethernet or a Camera Link interface to achieve real-time transmission of image data. The triggering and acquisition of the industrial camera 72 are strictly synchronized with the equipment's production cycle and are uniformly coordinated and controlled by the control system.

[0040] The light source 73 is mounted on the bracket 71 and uses LED lighting technology to provide stable, uniform and adjustable lighting conditions for the industrial camera 72. The brightness, lighting angle and color temperature of the light source 73 can be precisely adjusted by the control system to adapt to the imaging requirements of rotor laminations of different materials and processes.

[0041] During the inspection process, once the compacted rotor laminations are moved to the inspection station and positioned, the control system triggers the lighting system and camera to work synchronously. Industrial camera 72 acquires high-definition images of the rotor laminations under optimized lighting conditions, and the image data is transmitted to the image processing unit in real time. The processing unit runs a dedicated machine vision algorithm to preprocess the images, extract features, and identify defects. It can automatically detect typical defects such as the integrity and flatness of the compacted area of ​​the rotor laminations and perform quantitative analysis on the defect type and location. After comparing the inspection results with standards, a pass / fail judgment is automatically generated, and detailed data is uploaded to a central database to achieve traceability of quality data.

[0042] The inspection device 7 uses a bracket 71 to position the industrial camera 72 on the top and sides of the rotor laminations, so that its shooting angle can cover the circumferential and top areas of the rotor. With the illumination of the light source 73, uniform lighting and clear imaging are ensured in the inspection area. At the same time, the inspection device 7 combines machine vision algorithms to realize all-round automated inspection of the appearance, alignment and surface defects of the rotor laminations, which significantly improves the inspection accuracy and consistency, effectively replaces the traditional manual visual inspection, and improves production efficiency and quality traceability.

[0043] Referring to Figure 2, the workpiece support platform 2 is provided with a position correction device 9 on the side corresponding to the marked work station. The position correction device 9 includes a drive component 91 installed on the workpiece support platform 2 and a push plate 92 connected to the output end of the drive component 91 for pushing the rotor laminations and correcting their circumferential position.

[0044] The drive component 91 is a small, high-precision cylinder or electric push rod. Its cylinder body or main body is firmly fixed to the side of the workpiece support platform 2 by a mounting base, and its live output shaft is approximately parallel to the radial direction of the rotor laminations on the marked station. The movement (extension and retraction) of the drive component 91 is precisely controlled by the control system.

[0045] The pusher plate 92 is typically made of a wear-resistant material (such as nylon, polyurethane, or a metal block coated with a flexible material), and its shape is designed as an arc-shaped surface or a plane that matches the outer circumference of the rotor laminations. The pusher plate 92 is rigidly connected to the output end of the drive member 91 via a connector (such as a connecting block or a pin). When the drive member 91 extends, the pusher plate 92 moves radially toward the rotor laminations; when the drive member 91 retracts, the pusher plate 92 returns to its original position away from the rotor laminations.

[0046] The position correction device 9 drives the push plate 92 through the drive component 91 to apply radial force to the outer circumferential surface of the rotor, causing it to move in a controllable micro-amplitude manner, thereby accurately correcting the rotor laminations to the predetermined marking position of the marking device 8; thus solving the problem of random circumferential offset that may occur during feeding, conveying or compaction, ensuring that the laser marking position on each product is exactly the same, and greatly improving the standardization and normalization of the product appearance.

[0047] During the pressing process, the operator or automatic feeding mechanism first places the pre-stacked rotor laminations, whose geometric dimensions have passed inspection, onto the loading station of the workpiece support platform 2. After the equipment is started, the control system instructs the transfer device 3 to operate: the first linear module 31 drives the clamping actuator 4 to move along the length of the workpiece support platform 2 to the front of the loading station; the second linear module 32 extends laterally, allowing the clamping actuator 4 to reach the loading station. Subsequently, under the control of the control system, the clamping actuator 4 closes its pneumatic grippers, stably clamping the rotor laminations from both sides, ensuring that the laminations are not damaged or deformed during the transfer process.

[0048] Next, the transfer device 3 smoothly transfers the rotor laminations to the first cleaning station. The cleaning device 5 then activates, its linear drive mechanism 52 driving the protective cylinder 53 to descend and cover the rotor laminations. Clean gas is delivered via the conveying riser 51 to the nozzles 54 inside the protective cylinder 53, uniformly spraying filtered compressed air or clean gas onto the surface of the rotor laminations. During the cleaning process, the clamping actuator 4 moves out of the working area, and the blown-off impurities are discharged through the through-holes 21 on the workpiece support platform 2.

[0049] Then, the cleaned rotor laminations are transferred to the compaction station. The compaction device 6 initiates the lifting phase; the drive motor 681 of the lifting device 68 drives the lead screw 682 to rotate, causing the end plate 683 to pass through the through hole 21 from bottom to top, smoothly lifting the rotor laminations. When the top of the laminations approaches the compaction die head 64, the centering compaction phase begins: the compaction die head 64 starts to rotate under the drive motor 62, while the lifting device 68 continues to apply a stable axial lifting force, ensuring full contact between the laminations and the rotating compaction die head 64, achieving further compaction and alignment between the laminations. After compaction is complete, the compaction die head 64 stops rotating, and the lifting device 68 drives the rotor laminations to descend and reset.

[0050] Subsequently, the compacted rotor laminations are transferred to the inspection station. Inspection device 7 initiates the visual inspection process: industrial camera 72 acquires images of the rotor laminations from multiple preset angles, and the image processing unit analyzes the acquired images in real time and compares them with preset quality standards. If the inspection is qualified, the process proceeds to the next step; if it fails, the control system records the workpiece information and issues an alarm signal.

[0051] Afterwards, the qualified rotor laminations are transferred to the second cleaning station, where the compacted workpiece surface is cleaned again to ensure surface cleanliness before marking. After the second cleaning, the workpiece is transferred to the marking station. First, the position correction device 9 is activated, and the drive unit 91 operates so that its output shaft drives the push plate 92 to adjust the circumferential angle of the rotor laminations to the preset standard position. Then, the marking device 8 completes permanent laser engraving on the designated area of ​​the rotor surface according to the marking content issued by the control system.

[0052] Finally, the finished rotors, after being marked, are unloaded manually or by a robotic arm, completing one production cycle. Meanwhile, other stations within the system begin processing subsequent workpieces in parallel: the loading station places new workpieces, the cleaning station processes the next workpiece, and the compaction and inspection stations operate synchronously. Through multi-station collaboration and process overlap, an efficient and continuous production cycle is achieved.

[0053] The scope of protection of this invention is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this invention.

Claims

1. A rotor pressing device with integrated detection function, comprising a frame (1), characterized in that: It also includes a workpiece support platform (2) mounted on the frame (1), a transfer device (3) mounted on the frame (1) for transferring rotor laminations between different stations on the workpiece support platform (2), at least one clamping actuator (4) mounted on the transfer device (3) for clamping the rotor laminations, at least one cleaning device (5) mounted on the frame (1) for cleaning the rotor laminations, a compaction device (6) mounted on the frame (1) for axially compacting the stacked rotor laminations, and a device mounted on the frame (1) for detecting rotor laminations. The device for detecting the appearance quality of the laminated rotors (7), the device for marking the rotor laminates after pressing (8) set on the frame (1), and the control system that is electrically connected to the transfer device (3), the clamping actuator (4), the cleaning device (5), the compaction device (6), the detection device (7) and the marking device (8) respectively to control the coordinated operation of each component; the workpiece carrier (2) is provided with multiple stations for workpiece flow, including at least the loading station, the cleaning station, the compaction station, the detection station and the marking station.

2. The rotor pressing equipment with integrated detection function according to claim 1, characterized in that: The transfer device (3) includes a drive mechanism that enables the clamping actuator (4) to move independently in two mutually perpendicular directions in the horizontal plane.

3. The rotor pressing equipment with integrated detection function according to claim 2, characterized in that: The drive mechanism includes a first linear module (31) for driving the clamping actuator (4) to move along a first horizontal direction and a second linear module (32) for driving the clamping actuator (4) to move along a second horizontal direction perpendicular to the first horizontal direction.

4. The rotor pressing equipment with integrated detection function according to claim 1, characterized in that: The compaction device (6) includes a gantry frame (61) mounted on the frame (1), a drive motor (62) mounted on the gantry frame (61), a hollow rotating shaft (63) connected to the output shaft of the drive motor (62), a compaction die head (64) driven to rotate by the hollow rotating shaft (63) and matching the shape of the rotor, a plurality of guide rods (65) slidably connected to the gantry frame (61) and distributed around the hollow rotating shaft (63), a drive plate (66) connected to one end of the guide rods (65), a connecting rod (67) mounted inside the hollow rotating shaft (63) and connected to the compaction die head (64) for accommodating the floating of the compaction die head (64), and a lifting device (68) mounted at the bottom of the frame (1) and directly below the compaction die head (64) for driving the rotor laminations to rotate and rise.

5. The rotor pressing equipment with integrated detection function according to claim 4, characterized in that: The lifting device (68) includes a second drive motor (681), a lead screw (682) driven by the second drive motor (681), and an end plate (683) disposed at the top of the lead screw (682) for driving the rotor laminations to rotate and lift.

6. The rotor pressing equipment with integrated detection function according to claim 1, characterized in that: The cleaning device (5) is an air washing device, including a conveying riser (51) vertically installed on the frame (1), a linear drive mechanism (52) installed on the conveying riser (51), a protective cylinder (53) driven by the linear drive mechanism (52) to perform lifting and lowering movements, and a nozzle (54) installed in the protective cylinder (53) and connected to the conveying riser (51) through a pipeline.

7. The rotor pressing equipment with integrated detection function according to claim 1, characterized in that: The detection device (7) includes a bracket (71) mounted on a frame (1), at least one industrial camera (72) mounted on the bracket (71), and a light source (73) for providing illumination to the industrial camera (72).

8. The rotor pressing equipment with integrated detection function according to claim 1, characterized in that: The workpiece support platform (2) is provided with a position correction device (9) on the side corresponding to the marked work station. The position correction device (9) includes a drive unit (91) installed on the workpiece support platform (2) and a push plate (92) connected to the output end of the drive unit (91) for pushing the rotor laminations and correcting their circumferential position.

9. The rotor pressing equipment with integrated detection function according to claim 1, characterized in that: The workpiece support platform (2) has several through holes (21) with an inner diameter larger than that of the rotor laminations and a smaller outer diameter than that of the cleaning station and the compaction station.

10. A rotor press-fitting method with integrated detection function as described in any one of claims 1-9, characterized in that, The pressing method is as follows: S1. Loading step: Place the rotor laminations on the loading station of the workpiece support table; S2. Coordinated transfer step: The control system controls the transfer device and at least one clamping actuator to synchronously perform the transfer operation, so that each clamping actuator performs at least one of the following transfer actions within the same time window: S21. Transfer the rotor laminations located at the loading station to the cleaning station; S22. Transfer the rotor laminations located at the cleaning station to the compaction station; S23. Transfer the rotor laminations located at the compaction station to the inspection station; S24. Transfer the rotor laminations located at the inspection station to the marking station; S3. Synchronous processing step: Once each rotor lamination is positioned at its corresponding station, the control system synchronously or sequentially initiates the following processing operations: S31. Control the cleaning device to clean the rotor lamination located at the cleaning station; S32. Control the compaction device to axially compact the rotor lamination located at the compaction station; S33. Control the inspection device to perform appearance quality inspection on the rotor lamination located at the inspection station; S34. Control the marking device to mark the rotor lamination located at the marking station. Through the coordinated scheduling of steps S2 and S3, the processing time periods for cleaning, compaction, inspection, and marking are staggered with the time periods for transfer operations, achieving parallel production.

Images