A new energy automobile driving motor oil slinger precision press equipment

Abstract

The application discloses a new energy automobile driving motor oil slinger precision press equipment, including rack, roller conveying line and setting in the conveying line empty area upper and lower oil slinger artificial loading station and automatic press detection station. The loading station is provided with automatic rotating jacking assembly and automatic oiling assembly, realizing motor rotating positioning and oil slinger automatic oiling. The press detection station is provided with jacking limiting assembly and automatic press detection assembly, the jacking limiting assembly realizes rigid stable support during press through counterforce support unit; the automatic press detection assembly integrates servo press, precision guiding press tool and CCD detection tool, completing precision press of oil slinger and on-line visual detection of flanging defect. The application realizes full-process automation and intellectualization of oil slinger from oiling, positioning, press to detection, effectively solves problems of low efficiency, poor precision, unstable quality and the like existing in traditional manual assembly, and significantly improves production efficiency and product consistency.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle drive system technology, and in particular to a precision pressing device for oil slinger rings of drive motors for new energy vehicles. Background Technology

[0002] In the manufacturing of drive motors for new energy vehicles, the oil slinger ring is a key sealing component, and its assembly quality directly affects the reliability and lifespan of the motor. Currently, the pressing of oil slingers mainly relies on manual or semi-automatic equipment, which suffers from problems such as uneven oil application, low pressing accuracy, and lack of online inspection. This can easily lead to poor assembly, inadequate sealing, or even component damage, affecting the overall performance and consistency of the motor. Furthermore, traditional methods are inefficient and difficult to adapt to the demands of large-scale production. Therefore, there is an urgent need to develop a specialized device that integrates automatic oil application, precision pressing, and real-time inspection to achieve a highly efficient and precise assembly process for oil slingers. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the main purpose of this invention is to provide a fully automated equipment that integrates automatic oiling, precision pressing and real-time detection functions, so as to solve the problems of low efficiency, poor accuracy and inconsistent quality in the manual assembly of oil-slinging rings, thereby achieving efficient and highly reliable assembly.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a precision pressing device for oil-slinging rings of drive motors for new energy vehicles, comprising a frame, a roller conveyor line running through the frame, a tray for supporting the drive motor on the roller conveyor line, the roller conveyor including two rows of short roller lines and an empty area located between the two rows of short roller lines, the empty area being provided with a manual oil-slinging ring loading station and an automatic oil-slinging ring pressing and testing station; the manual oil-slinging ring loading station includes an automatic rotating lifting assembly and an automatic oiling assembly located above the automatic rotating lifting assembly, the automatic rotating... The lifting assembly includes a fixed base plate, on which two first lifting cylinders are fixedly mounted. The piston rods of the two lifting cylinders are connected to a lifting plate. A hollow rotating platform is fixedly mounted on the lifting plate. A rotating plate capable of abutting against the bottom of a tray is fixedly connected to the hollow rotating platform. A first guiding assembly composed of multiple first linear bearings and first guide rods is provided between the fixed base plate and the lifting plate. A first blocking cylinder for blocking the tray is provided on the frame. The automatic oiling assembly includes an oiling bracket, on which a first Z-axis linear module and a fixed... A first Y-axis linear module is mounted on a first Z-axis linear module. An oiling connecting plate is fixedly connected to the first Y-axis linear module. An oiling sleeve is fixedly connected to the oiling connecting plate. A swing cylinder is also mounted on the oiling bracket. An oil pan carrying oil is fixedly connected to the swing cylinder. The automatic pressing and testing station for the oil-slinging ring includes a lifting and limiting assembly and an automatic pressing and testing assembly located above the lifting and limiting assembly. The lifting and limiting assembly includes a support plate, a second lifting cylinder, a top plate, multiple reaction support units mounted on the support plate, and a second blocking cylinder mounted at one end of the support plate to block the tray. The support plate is fixedly mounted on the frame of the roller conveyor line. The second lifting cylinder is fixedly mounted at the center of the support plate. The piston rod of the second lifting cylinder is fixedly connected to the top plate. A second guide assembly consisting of multiple second linear bearings and second guide rods is provided between the top plate and the support plate. A fixing block is also fixedly mounted below each positioning post at the bottom of the top plate. A reaction force support unit is provided below each fixing block. The reaction force support unit includes a reaction force support cylinder, a limiting groove, and a limiting block that slides in the limiting groove. The piston rod of the reaction force support cylinder is fixedly connected to the limiting block.The automatic pressing and testing assembly includes a pressing frame housed in a machine frame. The pressing frame includes a base, four cylindrical columns fixedly mounted on the base, and a cover plate on top of the four cylindrical columns. A lifting plate is fixedly connected to the four cylindrical columns via a third linear bearing. Stops capable of abutting the lifting plate are provided on the four cylindrical columns. A lifting cylinder capable of moving the lifting plate up and down is provided on the cover plate. A through groove is provided on the lifting plate, with transverse guide rails on both sides of the through groove. A transverse linear module is also provided on the lifting plate. A pressing fixture housed in the through groove is fixedly connected to the transverse linear module. The pressing fixture includes an assembly plate. Four guide shafts are fixedly connected to the four corners of the assembly plate via four open flange-type guide shaft supports. A linear guide bearing is fitted onto each of the four linear guide shafts. The assembly plate is connected to a support plate, which is fixedly connected to the slider of the transverse linear module via a support plate. Four linear guide bearings have abutment rings at their tops, and rectangular springs are installed between the abutment rings and the support plate on each of the four linear guide bearings. A pressing column is fixedly installed at the center of the upper part of the assembly plate, and a pressure sleeve for pressing an oil slinger ring is fixedly installed at the center of the lower part of the assembly plate. A servo press capable of pressing the pressing column is also installed at the center of the cover plate. The automatic pressing and detection assembly also includes a CCD detection fixture installed on the pressing frame. The CCD detection fixture includes a detection bracket fixedly installed on the pressing frame, a second Z-axis linear module and a second Y-axis module fixedly installed on the second Z-axis module, and a CCD is fixedly connected to the second Y-axis module.During operation, the drive motor is fixed to the tray. The roller conveyor drives the drive motor to the manual loading station for the oil-slinging ring. The first blocking cylinder rises to stop the tray. The two first lifting cylinders of the automatic rotating lifting assembly raise the lifting plate. Then, the hollow rotating platform drives the rotating plate to rotate 90°, causing the drive motor to rotate to a position close to the worker. The worker removes the oil-slinging ring from the material rack and places it in the oil-slinging ring mounting position of the drive motor. Then, the hollow rotating platform drives the rotating plate to reset, and the automatic oiling assembly... The swing cylinder drives the oil pan to rotate to the oiling bracket. The first Z-axis linear module and the first Y-axis linear module work together to lower the oiling sleeve into the oil pan. Then, the oiling sleeve rises and moves to the oil slinger ring of the drive motor. The oiling sleeve descends and contacts the oil slinger ring to apply oil. Then, the oiling sleeve retracts, and the two first lifting cylinders drive the lifting plate to descend. The first blocking cylinder retracts, and the roller conveyor moves the tray to the automatic pressing and testing station of the oil slinger ring. The second blocking cylinder rises to stop the tray. The second lifting cylinder... The top plate is lifted, and the reaction support cylinder moves the limit block to directly below the fixed block at the bottom of the top plate. Then, the second lifting cylinder lowers the top plate and the tray, and the fixed block falls onto the limit block. At this time, the support plate replaces the second lifting cylinder to provide force support. The transverse linear module moves the pressing fixture along the transverse slide rail to directly above the oil slinger ring. The lifting cylinder lowers the lifting plate to the position near the oil slinger ring. The servo press abuts against the pressing column and descends until the pressing sleeve completely presses the oil slinger ring into the drive motor. Then, the servo press... The pressing machine, lifting plate, and pressing fixture retract sequentially. The CCD detection fixture, through the cooperation of the second Z-axis linear module and the second Y-axis linear module, moves the CCD to directly above the oil slinger ring and checks whether the oil slinger ring has a folded edge. After the detection is completed, the CCD detection fixture retracts, and the second lifting cylinder drives the top plate to lift the tray again. At this time, the reaction support cylinder drives the limit block away from directly below the fixed block. Then, the second lifting cylinder drives the top plate and tray to descend, the second blocking cylinder retracts, and the roller conveyor line moves the tray out of the equipment.

[0005] Preferably, an oil-slinging ring material rack is also provided on the outer side of the frame, and multiple material boxes are provided on the oil-slinging ring material rack.

[0006] Preferably, each column of short rollers is provided with a baffle on its outer side, and the side of the tray is provided with rollers that contact the baffle.

[0007] Preferably, photoelectric detection sensors are installed on the roller conveyor line before the manual feeding station and the automatic pressing and detection station of the oil-slinging ring.

[0008] This invention offers the following advantages over existing technologies: The equipment establishes a complete automated closed loop from conveying, positioning, oiling, pressing, to inspection. Through the coordinated operation of the roller conveyor and lifting limit components, automatic workpiece transfer and precise positioning are achieved, eliminating random errors caused by manual handling and positioning. The core servo press combined with precision guiding pressing fixtures significantly improves product consistency and reliability. Addressing the two major pain points of uneven oiling and pressing reaction force impact, the equipment provides innovative solutions. The automatic oiling component, through program-controlled oil application and transfer, achieves quantitative and uniform lubricant application, creating optimal conditions for smooth pressing. The unique reaction force support unit design transfers the enormous impact force from the cylinder to the rigid mechanical structure during pressing, protecting the precision cylinder and ensuring the workpiece remains perfectly positioned during pressing, greatly improving process stability and equipment durability.

[0009] By integrating CCD machine vision inspection directly behind the press-fitting station, "inspection on the spot" is achieved. It can instantly and automatically identify assembly defects such as "flipped edges" on the oil-slinging ring, replacing manual visual inspection, eliminating missed or false inspections, and ensuring that defective products do not flow into the next process. This online inspection mode builds a real-time quality feedback barrier, which is key to achieving "zero-defect" production and process traceability.

[0010] The equipment adopts a modular, station-based layout, allowing manual feeding and automatic pressing and testing stations to be connected in series to form a fully automated line or operate independently. Combined with pallet carriers and programmable logic control, it can quickly adapt to production switching between different motor models. The overall design significantly improves production cycle time, reduces reliance on manual labor and labor intensity, perfectly meeting the large-scale, high-cycle production needs of the new energy vehicle industry.

[0011] The rotary feeding station design makes it easier for workers to pick up and put down materials; the integration of material racks, the setting of conveyor baffles and photoelectric sensors, and other details optimize the material flow, avoid the risk of interference and collision, and create a safer and more orderly production environment.

[0012] Through its high degree of integration and intelligent control, this equipment boasts comprehensive advantages in efficiency, precision, quality, and reliability, providing a solid guarantee for the high-quality manufacturing of drive motors. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a precision pressing device for an oil slinger ring of a drive motor for a new energy vehicle, according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a precision pressing device for an oil slinger ring of a drive motor for a new energy vehicle, according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention with the frame and oil-throwing ring material rack omitted; Figure 4 for Figure 3 A structural diagram omitting the tray; Figure 5 This is a schematic diagram of the roller conveyor line of the present invention; Figure 6 This is a schematic diagram of the structure of the tray of the present invention; Figure 7 This is a schematic diagram of the automatic rotating lifting assembly of the present invention; Figure 8 This is a schematic diagram of the automatic oiling assembly of the present invention; Figure 9 This is a schematic diagram of the lifting and limiting component of the present invention; Figure 10 for Figure 9 Enlarged structural diagram of section A in the middle; Figure 11 This is a schematic diagram of the press-fit frame of the present invention; Figure 12 This is a schematic diagram of the press-fitting fixture of the present invention; Figure 13 This is a schematic diagram of the CCD detection fixture of the present invention.

[0014] In the diagram: 1. Frame; 2. Roller conveyor line; 3. Pallet; 4. Short roller conveyor; 5. Manual loading station for oil slinger rings; 6. Automatic pressing and inspection station for oil slinger rings; 7. Automatic rotary lifting assembly; 8. Automatic oiling assembly; 9. Fixed base plate; 10. First lifting cylinder; 11. Lifting plate; 12. Hollow rotary platform; 13. Rotating plate; 14. First linear bearing; 15. First guide rod; 16. First blocking cylinder; 17. Oiling bracket; 18. First Z-axis linear module; 19. First Y-axis linear module; 20. Oiling connecting plate; 21. Oiling sleeve; 22. Swing cylinder; 23. Oil pan; 24. Lifting limit assembly; 25. Automatic pressing and inspection assembly; 26. Support plate; 27. Second lifting cylinder; 28. Top plate; 29. ​​Second blocking cylinder; 30. Second linear bearing; 31. Second guide rod; 32. Fixed block. 33. Reaction support cylinder; 34. Limiting slide groove; 35. Limiting block; 36. Press-fitting frame; 37. Base; 38. Round column; 39. Cover plate; 40. Third linear shaft; 41. Lifting plate; 42. Stop block; 43. Lifting cylinder; 44. Through groove; 45. Transverse guide rail; 46. Transverse linear module; 47. Press-fitting fixture; 48. Assembly plate; 49. Open flange type guide shaft support; 50. Guide shaft; 5 1. Linear guide bearing; 52. Bearing plate; 53. Support plate; 54. Abutment ring; 55. Four-corner rectangular spring; 56. Pressing column; 57. Press sleeve; 58. Servo press; 59. CCD detection fixture; 60. Detection bracket; 61. Second Z-axis linear module; 62. Second Y-axis linear module; 63. CCD; 64. Oil slinger material rack; 65. Baffle; 66. Roller; 67. Feed photoelectric detection sensor. Detailed Implementation

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] like Figure 1As shown, a precision pressing equipment for oil-slinging rings of drive motors for new energy vehicles includes a frame 1. A roller conveyor line 2 runs through the frame 1, and a tray 3 for supporting the drive motor is provided on the roller conveyor line 2. The roller conveyor includes two rows of short roller lines 4 and an empty area located between the two rows of short roller lines 4. The empty area is provided with a manual oil-slinging ring feeding station 5 and an automatic oil-slinging ring pressing and testing station 6. The manual oil-slinging ring feeding station 5 includes an automatic rotary lifting assembly 7 and an automatic oiling assembly 8 located above the automatic rotary lifting assembly 7. The automatic rotary lifting assembly 7 includes a fixed base plate 9, on which two first lifting assemblies are fixedly installed. The cylinder 10 has two piston rods connected to a lifting plate 11. A hollow rotating platform 12 is fixedly mounted on the lifting plate 11. A rotating plate 13, capable of abutting the bottom of the tray 3, is fixedly connected to the hollow rotating platform 12. A first guide assembly, consisting of multiple first linear bearings 14 and first guide rods 15, is provided between the fixed base plate 9 and the lifting plate 11. A first blocking cylinder 16 is provided on the frame 1 to block the tray 3. The automatic oiling assembly 8 includes an oiling bracket 17, on which a first Z-axis linear module 18 and a first Y-axis module 19 are fixedly mounted. The first Y-axis linear module 19 is fixedly connected to an oiling connecting plate 20, and the oiling connecting plate 20 is fixedly connected to an oiling sleeve 21. The oiling bracket 17 is also equipped with a swing cylinder 22, and the swing cylinder 22 is fixedly connected to an oil pan 23 carrying oil. The automatic pressing and testing station 6 for the oil-slinging ring includes a lifting and limiting component 24 and an automatic pressing and testing component 25 located above the lifting and limiting component 24. The lifting and limiting component 24 includes a support plate 26, a second lifting cylinder 27, a top plate 28, multiple reaction force support units mounted on the support plate 26, and a second blocking cylinder 29 mounted at one end of the support plate 26 to block the tray 3. The support plate 26 is fixedly equipped with... The second lifting cylinder 27 is fixedly installed at the center of the support plate 26 on the frame of the roller conveyor line 2. The piston rod of the second lifting cylinder 27 is fixedly connected to the top plate 28. A second guide assembly consisting of multiple second linear bearings 30 and second guide rods 31 is provided between the top plate 28 and the support plate 26. A fixing block 32 is also fixedly installed below each positioning post at the bottom of the top plate 28. A reaction force support unit is provided below each fixing block 32. The reaction force support unit includes a reaction force support cylinder 33, a limiting slide groove 34, and a limiting block 35 that slides in the limiting slide groove 34. The piston rod of the reaction force support cylinder 33 is fixedly connected to the limiting block 35.The automatic pressing and testing assembly 25 includes a pressing frame 36 disposed in the frame 1. The pressing frame 36 includes a base 37, four round columns 38 fixedly disposed on the base 37, and a cover plate 39 disposed on the top of the four round columns 38. A lifting plate 41 is fixedly connected to the four round columns 38 by a third linear shaft 40. A stop block 42 capable of abutting the lifting plate 41 is provided on the four round columns 38. A lifting cylinder 4 capable of driving the lifting plate 41 to move up and down is provided on the cover plate 39. 3. The lifting plate 41 is provided with a through groove 44, and transverse guide rails 45 are provided on both sides of the through groove 44. The lifting plate 41 is also provided with a transverse linear module 46. The transverse linear module 46 is fixedly connected to a pressing fixture 47 provided in the through groove 44. The pressing fixture 47 includes an assembly plate 48. Four guide shafts 50 are fixedly connected to the four corners of the assembly plate 48 by four open flange-type guide shaft supports 49. Each guide shaft 50 is respectively fitted with a linear guide bearing 51. Linear guide bearings 51 are connected to a support plate 52. The support plate 52 is fixedly connected to the slider of the transverse linear module 46 via a support plate 53. Abutment rings 54 are provided at the top of each of the four linear guide bearings 51. Four rectangular springs 55 are also provided between the abutment rings 54 and the support plate 52 on each of the four linear guide bearings 51. A press-fitting column 56 is fixedly provided at the center of the upper part of the assembly plate 48, and a pressure sleeve 57 for press-fitting an oil slinger ring is fixedly provided at the center of the lower part of the assembly plate 48. The center of the cover plate 39 is also provided with a servo press 58 capable of pressing the pressing column 56; the automatic pressing detection assembly 25 also includes a CCD detection fixture 59 disposed on the pressing frame 36, the CCD detection fixture 59 includes a detection bracket 60 fixedly disposed on the pressing frame 36, the detection bracket 60 is provided with a second Z-axis linear module 61 and a second Y-axis module 62 fixedly disposed on the second Z-axis module 61, and the second Y-axis module 62 is fixedly connected to a CCD 63;During operation, the drive motor is fixed in the tray 3. The roller conveyor 2 drives the drive motor to the manual loading station 5 for the oil-slinging ring. The first blocking cylinder 16 rises to stop the tray 3. The two first lifting cylinders 10 of the automatic rotating lifting assembly 7 lift the lifting plate 11. Then, the hollow rotating platform 12 drives the rotating plate 13 to rotate 90°, so that the drive motor rotates to a position close to the worker. The worker takes the oil-slinging ring from the oil-slinging ring material rack 64 and places it in the oil-slinging ring mounting position of the drive motor. Then, the hollow rotating platform 12 drives the rotating plate 13 to reset. The swing cylinder 22 of the automatic oiling assembly 8 drives the oil pan 2. 3. Rotate to the oiling bracket 17. The first Z-axis linear module 18 and the first Y-axis linear module 19 work together to lower the oiling sleeve 21 into the oil pan 23. Then, the oiling sleeve 21 rises and moves to the oil slinger ring of the drive motor. The oiling sleeve 21 descends and contacts the oil slinger ring to achieve oiling. Then, the oiling sleeve 21 retracts. The two first lifting cylinders 10 drive the lifting plate 11 to descend. The first blocking cylinder 16 retracts. The roller conveyor 2 drives the tray 3 to move to the automatic pressing and testing station 6 of the oil slinger ring. The second blocking cylinder 29 rises to stop the tray 3. The second lifting cylinder 27 drives the top plate 28 to lift the tray. 3. Lifting: The reaction support cylinder 33 moves the limiting block 35 to directly below the fixing block 32 at the bottom of the top plate 28. Then, the second lifting cylinder 27 lowers the top plate 28 and the tray 3, and the fixing block 32 falls onto the limiting block 35. At this time, the support plate 26 replaces the second lifting cylinder 27 to provide force support. The transverse linear module 46 moves the pressing fixture 47 along the transverse slide rail to directly above the oil slinger ring. The lifting cylinder 43 lowers the lifting plate 41 to the position near the oil slinger ring. The servo press 58 abuts against the pressing column 56 and lowers until the pressing sleeve 57 completely presses the oil slinger ring into the drive motor. Then, the servo press 5... 8. The lifting plate 41 and pressing fixture 47 retract sequentially. The CCD detection fixture 59, in cooperation with the second Z-axis linear module 61 and the second Y-axis linear module 62, moves the CCD 63 directly above the oil slinger ring and checks whether the oil slinger ring has a flipped edge. After the detection is completed, the CCD detection fixture 59 retracts. The second lifting cylinder 27 drives the top plate 28 to lift the tray 3 again. At this time, the reaction support cylinder 33 drives the limit block 35 away from directly below the fixed block 32. Then, the second lifting cylinder 27 drives the top plate 28 and tray 3 to descend. The second blocking cylinder 29 retracts, and the roller conveyor 2 moves the tray 3 out of the equipment.

[0017] This invention relates to a precision pressing equipment for oil slinger rings in new energy vehicle drive motors. Its core technical principle lies in integrating the traditionally manual, discrete, and inconsistent oil slinger ring assembly process into a continuous, precise, and online-monitored automated assembly unit through a highly integrated automated mechanical structure, precise motion control, and sensing and detection technology. This equipment achieves full automation and intelligence throughout the entire process, from material loading, positioning, oiling, pressing to final inspection.

[0018] The equipment is based on a modular and assembly line design. The frame 1 serves as the main load-bearing structure, with an internally running roller conveyor 2 forming the channel for automatic material flow. The drive motor is fixed to a dedicated tray 3 and moves with the conveyor line. The conveyor line is designed with two rows of short rollers 4, with an empty area in between. This cleverly integrates the manual loading station 5 for oil-slinging rings and the automatic pressing and inspection station 6 for oil-slinging rings above and below the empty area, achieving a three-dimensional spatial operation and a seamless, sequential workflow. This design principle ensures the automatic and orderly transfer of workpieces between different stations, providing a foundation for the precise execution of subsequent processes and serving as a prerequisite for high-efficiency, large-scale production.

[0019] Precise positioning is the primary condition for ensuring the quality of pressing. The equipment adopts a combined positioning strategy of "lifting + limiting" at both core workstations.

[0020] At the manual loading station: the automatic rotary lifting assembly 7 is responsible for precisely positioning the pallet 3 and its supporting drive motor from the roller conveyor line 2 and presenting it to the operator. The principle is as follows: after the first blocking cylinder 16 stops the pallet 3, the two first lifting cylinders 10 achieve smooth, sway-free vertical lifting through the lifting plate 11 and the first guide assembly (linear bearing and guide rod). Subsequently, the hollow rotating platform 12 drives the rotating plate 13 to rotate the motor at a specific angle, so that the mounting surface faces the operator, greatly facilitating the manual placement of the oil-slinging ring. The guide assembly ensures the vertical accuracy of the lifting process, establishing accurate initial coordinates for subsequent oiling and pressing.

[0021] In the automated pressing station, the positioning principle of the lifting and limiting assembly 24 is more precise and has overload protection. The second lifting cylinder 27 lifts the tray 3 away from the conveyor line via the top plate 28 and the second guide assembly. Its unique feature is the inclusion of a reaction force support unit. During pressing, the reaction force support cylinder 33 drives the limiting block 35 to slide directly below the fixed block 32 at the bottom of the top plate 28. Then, the top plate 28 slightly lowers, allowing the fixed block 32 to sit firmly on the limiting block 35. At this point, the main reaction force generated by pressing is transmitted to the support plate 26 and the equipment frame through the fixed block 32 and the limiting block 35, rather than being borne by the second lifting cylinder 27. This principle separates the cylinder performing the positioning function from the mechanical structure bearing the pressing reaction force, protecting the cylinder from huge impacts and ensuring ultra-high stability of workpiece positioning during pressing using a rigid support structure, eliminating positioning errors caused by cylinder rod deflection.

[0022] To address the issue of uneven manual oiling, the equipment integrates an automatic oiling component 8. Its working principle simulates and optimizes the manual oiling action. A swing cylinder 22 drives an oil pan 23 containing a fixed amount of lubricating oil to swing to the working position. The oiling actuator employs a two-dimensional motion combination of a first Z-axis linear module 18 and a first Y-axis linear module 19 to drive the oiling sleeve 21 to achieve precise spatial movement. During oiling, the sleeve first descends to immerse itself in the oil pan 23 to quantitatively pick up oil, then moves above the oil-slinging ring and descends again, bringing the inner wall of the sleeve into contact with the outer edge of the oil-slinging ring. By controlling the relative position and contact time, the oil is evenly transferred to the surface of the oil-slinging ring to be assembled. This principle achieves controllable and consistent oiling volume, providing the necessary lubrication conditions for subsequent smooth pressing and reducing the risk of component damage or improper assembly due to friction.

[0023] The core technology of the equipment is the principle of precision controllable pressing and force displacement monitoring, which is reflected in the collaborative work of the servo press 58 and the pressing tooling 47 in the automatic pressing and detection component 25.

[0024] Precision alignment and buffered pressing: Before pressing, the transverse linear module 46 drives the entire pressing fixture 47 to move along the transverse guide rail 45, aligning the pressing sleeve 57 with the oil slinger ring mounting position on the motor shaft. The lifting cylinder 43 drives the lifting plate 41 to descend along the circular column 38 (guided by the third linear shaft 40), bringing the pressing sleeve 57 closer to the workpiece. The critical pressing process is executed by the servo press 58, which directly presses against the pressing column 56. The pressing force is transmitted to the oil slinger ring through the rigid path formed by the assembly plate 48, the pressing column 56, and the pressing sleeve 57. At the same time, the precision guiding system formed by the four guide shafts 50 and the linear guide bearings 51 ensures the absolute perpendicularity of the movement trajectory of the pressing sleeve 57, preventing off-center loading.

[0025] Elastic floating and pressure protection: A rectangular spring 55 is pre-compressed between the abutment ring 54 and the bearing plate 52. During the pressing process, the assembly plate 48 descends, and the rectangular spring 55 contracts. The spring absorbs deviations, avoids hard impacts, and protects parts and equipment. The servo press 58 itself has a high-precision force and displacement closed-loop control function, which can preset the pressing force-displacement curve and monitor the pressing process in real time. Once abnormal pressure is detected (such as excessive pressure indicating interference, or insufficient pressure indicating incomplete positioning) or displacement exceeding the tolerance, the system can immediately alarm and stop the machine, realizing process quality control.

[0026] After pressing, the equipment integrates a CCD inspection fixture 59 for immediate quality inspection. The principle is to use machine vision technology to replace human judgment. Driven by the second Z-axis linear module 61 and the second Y-axis linear module 62, the CCD 63 camera is precisely moved above the pressed oil slinger ring. The camera captures a high-definition image of the oil slinger ring's end, and the image processing system analyzes edge features, primarily detecting defects such as "flipping" (i.e., edge warping) after pressing. This principle enables real-time, objective, and non-contact inspection of assembly quality, enabling timely detection of defective products and preventing defects from flowing into subsequent processes. It is a crucial closed-loop link in ensuring product consistency and reliability.

[0027] This invention is a comprehensive application device integrating precision mechanical design (guiding, lifting, and limiting), automated control, process monitoring, and intelligent detection. It transforms the critical process of oil-slinging ring assembly into a standardized production module with controllable parameters, measurable quality, and traceable processes, fundamentally solving the pain points of traditional assembly methods and significantly improving the production quality, efficiency, and consistency of drive motors for new energy vehicles.

[0028] Preferably, an oil-slinging ring material rack 64 is also provided on the outer side of the frame 1, and multiple material boxes are provided on the oil-slinging ring material rack 64.

[0029] The purpose of this design is to achieve fixed-point, quantitative, and orderly management of materials. Integrating the oil-slinging ring material rack 64 on the outside of the equipment frame 1 and close to the manual loading station greatly facilitates the operator's material retrieval, reduces unnecessary walking and searching time, conforms to the "materials delivered to the workstation" principle in lean production, effectively improves loading efficiency, reduces labor intensity, and is conducive to on-site 5S management.

[0030] Preferably, each short roller line 4 is provided with a baffle 65 on its outer side, and the side of the tray 3 is provided with a roller 66 that contacts the baffle 65.

[0031] The purpose of this design is to ensure the accuracy of the pallet 3's trajectory and prevent it from falling during the conveying process. The baffle 65 forms the physical boundary of the conveying channel, and the rollers 66 on the side of the pallet 3 make rolling contact with the baffle 65. This design not only provides flexible guidance for the pallet 3, preventing it from deviating or jamming at high speeds or during start-stop operations, but also reduces resistance and wear through rolling friction. Simultaneously, it effectively eliminates the risk of the pallet 3 slipping from the side, ensuring the long-term stability and safety of the automated production line.

[0032] Preferably, photoelectric detection sensors 67 are respectively installed on the roller conveyor line 2 before the manual feeding station 5 for the oil-slinging ring and the automatic pressing and detection station 6 for the oil-slinging ring.

[0033] The purpose of this design is to achieve automated and precise control of workstation triggering. The photoelectric sensor, acting as the system's "eyes," can non-contactly detect whether tray 3 has accurately reached the designated workstation. Only after the sensor detects the arrival signal of tray 3 will subsequent actions such as blocking, lifting, rotating, or pressing be triggered. This avoids equipment malfunctions or component damage caused by inaccurate tray 3 positioning. It is a key sensing element for achieving fully automated cycle control and ensuring reliable connections between processes, thus improving the overall system's intelligence level and operational cycle stability.

[0034] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A precision pressing device for oil slinger rings of drive motors for new energy vehicles, characterized in that: The system includes a frame, within which a roller conveyor line runs through. The roller conveyor line has trays for supporting drive motors. The roller conveyor includes two rows of short rollers and a gap between them. The gap includes a manual oil-slinging ring loading station and an automatic oil-slinging ring pressing and testing station. The manual oil-slinging ring loading station includes an automatic rotary lifting assembly and an automatic oiling assembly located above it. The automatic rotary lifting assembly includes a fixed base plate, on which two first lifting cylinders are fixedly mounted. The piston rods of the two lifting cylinders are connected to a lifting plate. A hollow rotating platform is fixedly mounted on the lifting plate. A rotating plate that can abut against the bottom of the pallet is fixedly connected to the hollow rotating platform. A first guide assembly consisting of multiple first linear bearings and first guide rods is provided between the fixed base plate and the lifting plate. A first blocking cylinder for blocking the pallet is provided on the frame. The automatic oiling assembly includes an oiling bracket. A first Z-axis linear module and a first Y-axis module fixedly mounted on the first Z-axis module are provided on the oiling bracket. A Y-axis linear module is fixedly connected to an oiling connection plate, which is fixedly connected to an oiling sleeve. A swing cylinder is also installed on the oiling bracket, and the swing cylinder is fixedly connected to an oil pan carrying oil. The automatic pressing and testing station for the oil-slinging ring includes a lifting and limiting assembly and an automatic pressing and testing assembly located above the lifting and limiting assembly. The lifting and limiting assembly includes a support plate, a second lifting cylinder, a top plate, multiple reaction support units installed on the support plate, and a second blocking cylinder installed at one end of the support plate to block the tray. The support plate is fixedly mounted on the roller. On the frame of the cylindrical conveyor line, the second lifting cylinder is fixedly installed at the center of the support plate. The piston rod of the second lifting cylinder is fixedly connected to the top plate. A second guide assembly consisting of multiple second linear bearings and second guide rods is provided between the top plate and the support plate. A fixing block is also fixedly installed below each positioning post at the bottom of the top plate. A reaction support unit is provided below each fixing block. The reaction support unit includes a reaction support cylinder, a limiting groove, and a limiting block that slides in the limiting groove. The piston rod of the reaction support cylinder is fixedly connected to the limiting block.The automatic pressing and testing assembly includes a pressing frame housed in a machine frame. The pressing frame includes a base, four cylindrical columns fixedly mounted on the base, and a cover plate on top of the four cylindrical columns. A lifting plate is fixedly connected to the four cylindrical columns via a third linear bearing. Stops capable of abutting the lifting plate are provided on the four cylindrical columns. A lifting cylinder capable of moving the lifting plate up and down is provided on the cover plate. A through groove is provided on the lifting plate, with transverse guide rails on both sides of the through groove. A transverse linear module is also provided on the lifting plate. A pressing fixture housed in the through groove is fixedly connected to the transverse linear module. The pressing fixture includes an assembly plate. Four guide shafts are fixedly connected to the four corners of the assembly plate via four open flange-type guide shaft supports. A linear guide bearing is fitted onto each of the four linear guide shafts. The assembly plate is connected to a support plate, which is fixedly connected to the slider of the transverse linear module via a support plate. Four linear guide bearings have abutment rings at their tops, and rectangular springs are installed between the abutment rings and the support plate on each of the four linear guide bearings. A pressing column is fixedly installed at the center of the upper part of the assembly plate, and a pressure sleeve for pressing an oil slinger ring is fixedly installed at the center of the lower part of the assembly plate. A servo press capable of pressing the pressing column is also installed at the center of the cover plate. The automatic pressing and detection assembly also includes a CCD detection fixture installed on the pressing frame. The CCD detection fixture includes a detection bracket fixedly installed on the pressing frame, a second Z-axis linear module and a second Y-axis module fixedly installed on the second Z-axis module, and a CCD is fixedly connected to the second Y-axis module.During operation, the drive motor is fixed to the tray. The roller conveyor drives the drive motor to the manual loading station for the oil-slinging ring. The first blocking cylinder rises to stop the tray. The two first lifting cylinders of the automatic rotating lifting assembly raise the lifting plate. Then, the hollow rotating platform drives the rotating plate to rotate 90°, causing the drive motor to rotate to a position close to the worker. The worker removes the oil-slinging ring from the material rack and places it in the oil-slinging ring mounting position of the drive motor. Then, the hollow rotating platform drives the rotating plate to reset, and the automatic oiling assembly... The swing cylinder drives the oil pan to rotate to the oiling bracket. The first Z-axis linear module and the first Y-axis linear module work together to lower the oiling sleeve into the oil pan. Then, the oiling sleeve rises and moves to the oil slinger ring of the drive motor. The oiling sleeve descends and contacts the oil slinger ring to apply oil. Then, the oiling sleeve retracts, and the two first lifting cylinders drive the lifting plate to descend. The first blocking cylinder retracts, and the roller conveyor moves the tray to the automatic pressing and testing station of the oil slinger ring. The second blocking cylinder rises to stop the tray. The second lifting cylinder... The top plate is lifted, and the reaction support cylinder moves the limit block to directly below the fixed block at the bottom of the top plate. Then, the second lifting cylinder lowers the top plate and the tray, and the fixed block falls onto the limit block. At this time, the support plate replaces the second lifting cylinder to provide force support. The transverse linear module moves the pressing fixture along the transverse slide rail to directly above the oil slinger ring. The lifting cylinder lowers the lifting plate to the position near the oil slinger ring. The servo press abuts against the pressing column and descends until the pressing sleeve completely presses the oil slinger ring into the drive motor. Then, the servo press... The pressing machine, lifting plate, and pressing fixture retract sequentially. The CCD detection fixture, through the cooperation of the second Z-axis linear module and the second Y-axis linear module, moves the CCD to directly above the oil slinger ring and checks whether the oil slinger ring has a folded edge. After the detection is completed, the CCD detection fixture retracts, and the second lifting cylinder drives the top plate to lift the tray again. At this time, the reaction support cylinder drives the limit block away from directly below the fixed block. Then, the second lifting cylinder drives the top plate and tray to descend, the second blocking cylinder retracts, and the roller conveyor line moves the tray out of the equipment.

2. The precision pressing equipment for oil slinger rings of drive motors for new energy vehicles according to claim 1, characterized in that: An oil-slinging ring material rack is also provided on the outside of the frame, and multiple material boxes are provided on the oil-slinging ring material rack.

3. The precision pressing equipment for oil slinger rings of drive motors for new energy vehicles according to claim 1, characterized in that: Each short roller conveyor is equipped with a baffle on its outer side, and the side of the tray is equipped with rollers that contact the baffle.

4. The precision pressing equipment for oil slinger rings of drive motors for new energy vehicles according to claim 1, characterized in that: The roller conveyor line is equipped with photoelectric detection sensors for material feeding at the manual feeding station of the oil slinger ring and the automatic pressing and detection station of the oil slinger ring.

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