A method and assembly equipment for assembling an oil-impregnated bearing and a motor end cover.

Abstract

This application belongs to the technical field of motor end cover assembly equipment, and discloses an assembly method and equipment for assembling an oil-impregnated bearing and a motor end cover. The assembly method includes the following steps: S1: A first feeding component provides a bearing cover to a support carrier mounted on a rotating platform. The rotating platform is mounted on a base and can rotate. The support carrier is mounted on the rotating platform. S2: When the support carrier rotates to the second feeding component, the second feeding component inserts a bearing body into the bearing cover. S3: When the support carrier rotates to the oil filling component, the oil filling component fills the bearing body with grease. S4: When the support carrier rotates to the third feeding component, the third feeding component assembles the motor end cover onto the grease-filled bearing body. S5: When the support carrier rotates to the pressing mechanism, the pressing mechanism rivets the riveting pieces on the motor end cover to the bearing cover, completing the assembly. S6: When the support carrier rotates to the unloading component, the unloading component automatically unloads the bearing cover. This application ensures the assembly efficiency of the oil-impregnated bearing and the motor end cover.

Description

Technical Field

[0001] This invention relates to the field of motor end cover assembly equipment technology, and particularly to an assembly method and assembly equipment for an oil-impregnated bearing and a motor end cover. Background Technology

[0002] Among the core components of fully automatic and semi-automatic washing machines, the stability of the motor's operation directly determines the washing machine's performance and lifespan, while the assembly quality of the oil-impregnated bearing and the motor end cover is a key factor affecting the motor's operational accuracy.

[0003] Oil-impregnated bearings require positioning via bearing caps and lubrication with grease for long-term lubrication. They are then fixed to the motor end cap via a riveting structure, forming a complete motor support assembly. This motor support assembly must not only ensure the coaxiality of the bearing body and the motor end cap but also guarantee precise grease filling and secure riveting. Failure to do so can lead to abnormal noises during motor operation, accelerated wear, and even a shortened overall motor lifespan. With the increasing demands for product performance and the growing need for large-scale production in the washing machine industry, the assembly process of oil-impregnated bearings and motor end caps faces even greater challenges in terms of efficiency and precision.

[0004] Currently, the industry mostly adopts a semi-automated operation mode with manual assistance for the assembly of washing machine motor end covers and oil-impregnated bearings: the supply of bearing covers relies on manual tray placement, the assembly of bearing bodies requires manual alignment of the bearing cover station, the filling of lubricating grease is mostly done manually with independent equipment, and after the motor end cover is assembled, it still needs to be manually transferred to the pressing station for riveting and fixing, and finally the finished product is unloaded manually. This mode not only increases the workload of workers, but also significantly prolongs the assembly cycle of a single product due to the manual transfer and waiting time between each station, making it difficult to meet the efficiency requirements of large-scale production. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a method and equipment for assembling an oil-impregnated bearing and a motor end cover, thereby designing an automated device that can efficiently connect the various assembly processes of the oil-impregnated bearing and the motor end cover, thus reducing the workload of workers and improving assembly efficiency.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a method for assembling an oil-impregnated bearing and a motor end cover, comprising the following steps: S1: The bearing cover is provided to the support carrier set on the rotary table through the first feeding component. The rotary table is set on the base and can rotate under the drive of the drive mechanism. The support carrier moves synchronously with the rotary table. S2: When the support carrier rotates with the rotary table to the corresponding position of the second feeding component, the bearing body is installed into the bearing cover inside the support carrier through the second feeding component. S3: When the support carrier rotates with the rotary table to the corresponding position of the oil filling component, lubricating grease is filled into the bearing body through the oil filling component; S4: When the support carrier rotates with the rotary table to the corresponding position of the third feeding component, the motor end cover is assembled onto the bearing body after it has been filled with grease through the third feeding component. S5: When the support carrier rotates with the rotary table to the corresponding position of the pressing mechanism, the rivet piece on the motor end cover is riveted and fixed to the bearing cover by the pressing mechanism, thus completing the assembly of the oil-impregnated bearing and the motor end cover. S6: When the support carrier rotates with the rotary table to the corresponding position of the unloading component, the assembled parts are removed from the support carrier by the unloading component to achieve unloading.

[0007] By adopting the above technical solution, the entire process of bearing cover supply, bearing body assembly, lubricant filling, motor end cover assembly, riveting and fixing, and finished product unloading was completed in an orderly manner. This achieved automated connection between the oil-impregnated bearing and motor end cover assembly process, ensuring not only the continuity and precision of the assembly operation and the stability of the finished product assembly quality, but also significantly shortening the assembly cycle of the oil-impregnated bearing and motor end cover, thus significantly improving overall production efficiency. This results in stable and smooth operation of the motor end cover when applied to energy-saving motors, achieving energy-saving and high-efficiency performance.

[0008] This application also discloses an assembly device based on the assembly method of oil-impregnated bearing and motor end cover. The first feeding component, the second feeding component, the oil filling component, the third feeding component, the pressing mechanism, and the unloading component are all arranged on the base and distributed in sequence along the periphery of the rotary table. The support carrier is provided in six sets and corresponds one-to-one with the first feeding component, the second feeding component, the oil filling component, the third feeding component, the pressing mechanism, and the unloading component.

[0009] By adopting the above technical solutions, a circular automated operation layout around the rotary table is formed. During the rotation of the rotary table driven by the drive mechanism, each set of support carriers can simultaneously perform bearing cover supply, bearing body assembly, oil filling, motor end cover assembly, press-fitting and unloading operations at the corresponding workstations. This achieves parallel operation of multiple workstations and seamless connection of the entire process, which not only avoids mutual interference between workstations, but also further improves the synchronicity and accuracy of assembly operations through the precise correspondence between support carriers and components, significantly shortening the assembly cycle of a single product and laying a structural foundation for efficient and stable large-scale production.

[0010] Furthermore, a mounting frame is fixed on the base, and the pressing mechanism includes a first bending assembly, a second bending assembly, and a third bending assembly. The first bending assembly is set on the mounting frame and is used to bend the rivet pieces downward. The first bending assembly includes a hydraulic cylinder, a mounting plate, a guide rod, a mounting cover, and a first bending block. The hydraulic cylinder is fixed on the mounting frame, the mounting plate is fixed to the lower end of the output rod of the hydraulic cylinder, the guide rod is fixed on the mounting plate, the top of the mounting cover is fixed to the lower end of the guide rod, the inner bottom of the mounting cover is aligned with the motor end cover and inserted into it, and the first bending block is fixed to the inner bottom of the mounting cover. The number of first bending blocks is equal to the number of rivet pieces and their positions correspond one-to-one. The second bending assembly is mounted on the mounting cover and is used to bend the riveted piece after the first bending block is bent toward the center of the bearing body. The third bending assembly is mounted on the support carrier and is used to press the riveted piece after the second bending assembly is bent upward onto the bearing cover.

[0011] By adopting the above technical solution, when the hydraulic cylinder starts and controls the mounting plate to descend, the guide rod, mounting cover, and first bending block move downwards synchronously, thereby causing the first bending block to bend its corresponding riveting pieces downwards, completing the first bending action of the riveting pieces. The second bending assembly bends the riveting pieces bent by the first bending block toward the center of the bearing body, and the third bending assembly presses the riveting pieces bent by the second bending assembly upwards onto the bearing cover, completing the automated assembly operation of the oil-impregnated bearing and the motor end cover.

[0012] Furthermore, the second bending assembly includes a first screw, a first motor, a lower movable plate, a sleeve, an upper movable plate, a connecting lug, a second screw, a second motor, an abutment rod, a second bending block, and a reset unit; the upper and lower ends of the first screw are rotatably connected to the mounting plate and the mounting cover, respectively; the first motor is fixed to the mounting plate and used to drive the first screw to rotate; the lower movable plate is threadedly connected to the first screw and slidably engaged with the guide rod; the lower end of the sleeve is open and fixed to the lower movable plate; the upper movable plate is sleeved on the sleeve and slidably engaged; the connecting lug is fixed to the sleeve; the second screw passes through the upper movable plate and is threadedly connected; the second motor is fixed to the connecting lug and used to drive the second screw to rotate; the abutment rod is fixed to the upper... On the movable plate, both the mounting cover and the first bending block have through holes for the abutment rod to pass through; the first bending block has a through hole communicating with the through hole, extending towards the bearing body; the second bending block slides with the through hole, the cross-section of the second bending block is U-shaped, the two ends of the second bending block are located on the side of the bearing cover away from the bearing body, the distance between the inner side of the U-shaped part of the second bending block and the bearing body increases from top to bottom, and the lower end of the abutment rod is provided with an inclined surface that mates with the inner side of the U-shaped part of the second bending block; the reset unit is used to keep the second bending block retracted in the through hole; the number of reset units, the number of second bending blocks, and the number of abutment rods are all equal to the number of first bending blocks, and their positions correspond one-to-one.

[0013] By adopting the above technical solution, after the control center of the assembly equipment starts the first motor, the first screw rotates. Due to the sliding fit between the lower movable plate and the guide rod, the lower movable plate, sleeve, upper movable plate, connecting lug, second screw, second motor, and abutment rod all move down synchronously. When the lower movable plate abuts against the top of the mounting cover, the control center of the assembly equipment shuts down the first motor and simultaneously starts the second motor, driving the second screw to rotate. Due to the sliding fit between the upper movable plate and the sleeve, the upper movable plate drives all the abutment rods to descend synchronously. The design of the inclined surface at the lower end of the abutment rod and the inner side of the U-shaped part of the second bending block can convert the downward pressure of the abutment rod into a bending force towards the center of the bearing body, thereby controlling the second bending block to move towards the side closer to the bearing body, so that the second bending block completes the second bending action of bending the riveted piece towards the side closer to the bearing body after the first bending. When the control center of the assembly equipment controls the lower movable plate and the upper movable plate to reset, the abutment rod disengages from the through hole, and the second bending block retracts into the through hole under the action of the reset unit, so as to facilitate the next secondary bending operation.

[0014] Furthermore, a sliding groove is provided on the inner wall of the through hole, and each set of reset units includes a sliding plate and a spring; the sliding plate is fixed to the side wall of the second bending block and slides in cooperation with the sliding groove, and the two ends of the spring are respectively fixed to the sliding plate and the side of the sliding groove near the bearing body.

[0015] By adopting the above technical solution, after the abutment rod disengages from the perforation, the second bending block retracts into the through hole on the side of the perforation away from the bearing body under the combined action of the sliding plate and the spring, so that the second bending block can perform a second bending of the riveting piece when the abutment rod moves down again.

[0016] Furthermore, the support carrier includes a U-shaped frame, an electric push rod, a mounting rod, a tray, an arc-shaped block, and a positioning block; the U-shaped frame is fixed to the bottom of the rotary table, the electric push rod is fixed to the U-shaped frame, the mounting rod is fixed to the upper end of the electric push rod, the tray is fixed to the upper end of the mounting rod, multiple arc-shaped blocks are provided and evenly fixed to the side wall of the tray, and the positioning block is fixed to the center of the top of the tray; the diameter of the positioning block is smaller than the inner diameter of the bearing body, and the inner wall of the arc-shaped block fits against the outer wall of the bearing cover.

[0017] By adopting the above technical solution, the pallet, in conjunction with multiple arc-shaped blocks, provides excellent load-bearing support for the bearing cover, ensuring stability during the assembly process of the oil-impregnated bearing and the motor end cover. The linkage design of the electric push rod, mounting rod, and pallet allows for flexible adjustment of the pallet height, enabling the support carrier to adapt to the height requirements of different workstations (such as feeding, oil filling, and pressing) for the bearing cover and bearing body, thus improving the equipment's versatility and adaptability.

[0018] Furthermore, the third bending assembly includes a connecting unit, a bending unit, and a power unit; the connecting unit includes a horizontal plate and a sliding seat, the horizontal plate being sleeved on and rotatably connected to the mounting rod, and the sliding seat being fixedly sleeved on the mounting rod and located at the top of the horizontal plate; the number of bending units is equal to the number of the second bending blocks and their positions correspond one-to-one, the bending unit includes a sliding block, a push rod, and a diagonal brace, the sliding block slidingly engaging with the sliding seat and being able to move toward or away from the mounting rod; the push rod is fixed to the sliding block, and the horizontal plate extends through... An arc-shaped hole is provided for sliding engagement of the push rod, and the arc-shaped hole is eccentrically positioned with the mounting rod; the diagonal brace is hinged to the top of the sliding block, and multiple diagonal braces are hinged together at their upper ends with a bending member, which is sleeved on the mounting rod and can slide with the mounting rod. The top of the bending member is integrally formed with a top rod, the number of top rods is equal to the number of the second bending block and their positions correspond one-to-one, the inner diameter of the top rod is larger than the outer diameter of the bearing cover, and the inner wall of the top rod is adjacent to the outer wall of the bearing cover; the power unit is set on the mounting rod and is used to drive the horizontal plate to rotate.

[0019] By adopting the above technical solution, the control center of the assembly equipment can control the power unit to make the horizontal plate rotate. Since the arc-shaped hole on the horizontal plate slides with the push rod, and the arc-shaped hole is eccentrically set with the mounting rod, the push rod drives the sliding block to move towards the side closer to the mounting rod. This allows multiple diagonal braces to cooperate and control the bending parts to rise. The top rod on the bending parts presses the riveted piece after the second bending upwards onto the bearing cover, completing the assembly of the oil-impregnated bearing and the motor end cover.

[0020] Furthermore, the power unit includes a fixed rod, a bending cylinder, and a connecting block. The fixed rod is fixed to the mounting rod, the bending cylinder is hinged to the fixed rod, and the connecting block is fixed to the horizontal plate and hinged to the piston rod end of the bending cylinder.

[0021] By adopting the above technical solution, after the control center of the assembly equipment controls the bending cylinder to work, the piston rod of the bending cylinder pushes the horizontal plate to rotate through the connecting block, thereby enabling the top rod on the bending part to complete the final bending action.

[0022] Furthermore, a calibration hole is provided through the mounting cover at the position corresponding to the screw holes of the motor end cover, and a calibration assembly is provided on the mounting cover; the calibration assembly includes a calibration cylinder, a swing arm, a calibration motor, and a friction wheel. One end of the calibration cylinder and one end of the swing arm are both hinged to the top of the mounting cover, and the other end of the calibration cylinder is hinged to the middle section of the swing arm. The calibration motor is fixed on the swing arm, and the friction wheel is coaxially arranged and fixedly connected to the output end of the calibration motor; a notch is provided through the mounting cover at the position corresponding to the friction wheel for the friction wheel to enter, and a position sensor for calibrating the relative position of the screw holes and the calibration hole is fixed on the mounting bracket.

[0023] By adopting the above technical solution, when the motor end cover moves with the oil-impregnated bearing to below the mounting cover, the control center starts the hydraulic cylinder to lower the mounting cover until it covers the motor end cover. At this time, there may be a positional deviation between the first bending block on the mounting cover and the riveting piece on the motor end cover. The position sensor can monitor the position of the screw hole on the motor end cover and the calibration hole on the mounting cover. The monitoring result is transmitted to the control center in the form of an electrical signal. The control center starts the calibration cylinder, which causes the piston rod of the calibration cylinder to drive the swing arm to rotate, so that the friction wheel enters the notch and abuts against the outer wall of the motor end cover. At this time, the control center starts the calibration motor to drive the friction wheel to rotate. The friction wheel drives the motor end cover to rotate until the position sensor detects that the screw hole and the calibration hole are aligned. Then, the control center stops the calibration motor and continues to control the hydraulic cylinder to lower the mounting cover, and the first bending block performs a bending action on the riveting piece. Through the design of the calibration component, the calibration work of the mounting cover and the motor end cover is completed, ensuring the smooth riveting of the riveting piece.

[0024] Furthermore, the first feeding assembly includes a first feeding frame, a transfer frame, a transfer motor, a swing arm, and an electric suction cup; the first feeding frame is fixed on the base, and a first conveyor belt for conveying the bearing cover is provided on the first feeding frame; the transfer frame is fixed on the base, the transfer motor is fixed on the transfer frame, the swing arm is fixed to the output shaft of the transfer motor, and two electric suction cups are provided and fixed to both ends of the swing arm respectively.

[0025] By adopting the above technical solution, the control center can drive the swing arm to rotate through the transfer motor. The design of fixing electric suction cups at both ends of the swing arm can realize the synchronous action of "one suction cup picking up the bearing cover from the first conveyor belt and the other suction cup lowering the bearing cover to the support carrier". There is no need to wait for a single electric suction cup to go back and forth, which greatly shortens the transfer cycle of the bearing cover and ensures the material supply efficiency of the bearing cover and the assembly efficiency of the entire assembly process.

[0026] In summary, the present invention has the following beneficial effects: 1. In this application, the entire process of supplying bearing caps, assembling bearing bodies, filling lubricating grease, assembling motor end caps, riveting and fixing and unloading finished products was completed in an orderly manner. This achieved automated connection of the assembly process of oil-impregnated bearings and motor end caps, which not only ensured the continuity and accuracy of assembly operations and the stability of finished product assembly quality, but also significantly shortened the assembly cycle of oil-impregnated bearings and motor end caps, and significantly improved the overall production efficiency. 2. In this application, when the hydraulic cylinder is activated and the mounting plate is lowered, the guide rod, mounting cover, and first bending block move downwards synchronously, thereby causing the first bending block to bend its corresponding riveting pieces downwards, completing the first bending action of the riveting pieces. The second bending assembly bends the riveting pieces bent by the first bending block toward the center of the bearing body, and the third bending assembly presses the riveting pieces bent by the second bending assembly upwards onto the bearing cover, completing the automated assembly operation of the oil-impregnated bearing and the motor end cover; 3. In this application, after the control center of the assembly equipment controls the power unit to work, the horizontal plate can be rotated. Since the arc-shaped hole on the horizontal plate is slidably engaged with the push rod, and the arc-shaped hole is eccentrically set with the mounting rod, the push rod drives the sliding block to move toward the side closer to the mounting rod, thereby enabling multiple diagonal braces to cooperate and control the bending part to rise. The top rod on the bending part presses the riveted piece after the second bending upward onto the bearing cover, completing the assembly of the oil-impregnated bearing and the motor end cover. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the bearing cover structure in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure after the bearing cover is installed into the bearing body in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the motor end cover in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the distribution structure of multiple sets of support carriers on a rotary table, as shown in Embodiment 1 of the present invention. Figure 6 yes Figure 5 A structural diagram from another perspective; Figure 7 This is a schematic diagram of the structure of the connecting unit in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the structure of the reset unit in Embodiment 1 of the present invention; Figure 9 yes Figure 8 Enlarged view of point A in the middle; Figure 10 This is a schematic diagram of Embodiment 1 of the present invention to highlight the tray and its connection structure; Figure 11 yes Figure 7 Enlarged view of point B in the middle; Figure 12 This is a schematic diagram of the structure of the calibration component in Embodiment 1 of the present invention; Figure 13This is a schematic diagram of Embodiment 1 of the present invention to highlight the bottom structure of the mounting cover; Figure 14 yes Figure 4 Enlarged view of point C in the middle; Figure 15 This is a schematic diagram of Embodiment 1 of the present invention to highlight the structure after the oil-impregnated bearing and the motor end cover are assembled; Figure 16 This is a schematic diagram of the bearing cover in Embodiment 2 of the present invention.

[0028] In the picture: 1. Base; 11. First feeding assembly; 111. First loading rack; 112. Transfer rack; 113. Transfer motor; 114. Swing arm; 115. Electric suction cup; 116. First conveyor belt; 12. Second feeding assembly; 13. Oil filling assembly; 14. Third feeding assembly; 15. Unloading assembly; 16. Drive mechanism; 17. Mounting bracket; 171. Position sensor; 2. Rotary table; 3. Support carrier; 31. U-shaped frame; 32. Electric push rod; 33. Mounting rod; 34. Support plate; 35. Arc-shaped block; 36. Positioning block; 4. Bearing cover; 41. Bearing body; 42. Motor end cover; 421. Riveting piece; 422. Screw hole; 43. Clamping metal piece; 5. Pressing mechanism; 51. First bending assembly; 511. Hydraulic cylinder; 512. Mounting plate; 513. Guide rod; 514. Mounting cover; 5141. Calibration hole; 5142. Notch; 515. First bending block; 5151. Through hole; 5152. Slide groove; 52. Second bending assembly; 520. First screw; 521. First motor; 522. Lower movable plate; 523. Sleeve; 524. Upper movable plate; 525. Connecting lug; 526. Second screw; 527. Second motor; 528. Abutting rod; 5281. Inclined surface; 529. Second bending block; 530. Reset unit; 5301. Sliding plate; 5302. Spring; 53. Third bending assembly; 531. Connecting unit; 5311. Horizontal plate; 53111. Arc-shaped hole; 5312. Sliding seat; 532, Bending unit; 5321, Sliding block; 5322, Push rod; 5323, Diagonal brace; 5324, Bending component; 53241, Top rod; 533, Power unit; 5331, Fixing rod; 5332, Bending cylinder; 5333, Connecting block; 6, Perforation; 7. Calibration components; 71. Calibration cylinder; 72. Swing arm; 73. Calibration motor; 74. Friction wheel. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Example 1: As Figure 1-4 As shown in the figure, this application discloses a method for assembling an oil-impregnated bearing and a motor end cover, including the following steps: S1: The bearing cover 4 is provided to the support carrier 3 set on the rotary table 2 through the first feeding component 11. The rotary table 2 is set on the base 1 and can rotate under the drive of the drive mechanism 16. The support carrier 3 moves synchronously with the rotary table 2. S2: When the support carrier 3 rotates with the rotary table 2 to the corresponding position of the second feeding component 12, the bearing body 41 is installed into the bearing cover 4 inside the support carrier 3 through the second feeding component 12. S3: When the support carrier 3 rotates with the rotary table 2 to the corresponding position of the oil filling component 13, lubricating grease is filled into the bearing body 41 through the oil filling component 13; S4: When the support carrier 3 rotates with the rotary table 2 to the corresponding position of the third feeding component 14, the motor end cover 42 is assembled onto the bearing body 41 after it is filled with grease through the third feeding component 14. S5: When the support carrier 3 rotates with the rotary table 2 to the corresponding position of the pressing mechanism 5, the pressing mechanism 5 rivets the rivet piece 421 on the motor end cover 42 to the bearing cover 4, thus completing the assembly of the oil-impregnated bearing and the motor end cover 42. S6: When the support carrier 3 rotates with the rotary table 2 to the corresponding position of the unloading assembly 15, the assembled parts are removed from the support carrier 3 by the unloading assembly 15 to achieve unloading.

[0031] Through the above assembly method, the entire process of supplying bearing cover 4, assembling bearing body 41, filling lubricating grease, assembling motor end cover 42, riveting and fixing, and unloading finished products was completed in an orderly manner. This achieved automated connection of the assembly process of oil-impregnated bearing and motor end cover 42, which not only ensured the continuity and accuracy of the assembly operation and the stability of the finished product assembly quality, but also significantly shortened the assembly cycle of oil-impregnated bearing and motor end cover 42, and significantly improved the overall production efficiency.

[0032] like Figure 4-6As shown in the embodiment, this application also discloses an assembly device based on an assembly method for an oil-impregnated bearing and a motor end cover. The first feeding assembly 11, the second feeding assembly 12, the oil filling assembly 13, the third feeding assembly 14, the pressing mechanism 5, and the unloading assembly 15 are all disposed on the base 1 and distributed sequentially along the periphery of the rotary table 2. The support carrier 3 has six sets, each corresponding to one of the first feeding assembly 11, the second feeding assembly 12, the oil filling assembly 13, the third feeding assembly 14, the pressing mechanism 5, and the unloading assembly 15. The drive mechanism 16, the second feeding assembly 12, the oil filling assembly 13, the third feeding assembly 14, and the unloading assembly 15 are all conventional devices in the prior art and will not be described in detail here.

[0033] Through the above-mentioned assembly equipment, a circular automated operation layout is formed around the rotary table 2. During the rotation of the rotary table 2 driven by the drive mechanism 16, each set of support carriers 3 can simultaneously perform bearing cover 4 supply, bearing body 41 assembly, oil filling, motor end cover 42 assembly, press-fitting and unloading operations at the corresponding workstations. This realizes multi-station parallel operation and seamless connection of the whole process, which not only avoids mutual interference between workstations, but also further improves the synchronicity and accuracy of assembly operations through the precise correspondence between the support carriers 3 and the components, greatly shortening the assembly cycle of a single product and laying a structural foundation for efficient and stable large-scale production.

[0034] like Figure 5-8 As shown, a mounting bracket 17 is fixed on the base 1. The pressing mechanism 5 includes a first bending assembly 51, a second bending assembly 52, and a third bending assembly 53. The first bending assembly 51 is mounted on the mounting bracket 17 and is used to bend the riveting piece 421 downwards. The first bending assembly 51 includes a hydraulic cylinder 511, a mounting plate 512, a guide rod 513, a mounting cover 514, and a first bending block 515. The hydraulic cylinder 511 is fixed on the mounting bracket 17. The mounting plate 512 is fixed to the lower end of the output rod of the hydraulic cylinder 511. The guide rod 513 is fixed on the mounting plate 512. The top of the mounting cover 514 is... The lower end of the guide rod 513 is fixed, and the inner bottom of the mounting cover 514 is aligned with and inserted into the motor end cover 42. The first bending block 515 is fixed to the inner bottom of the mounting cover 514. The number of the first bending blocks 515 is equal to the number of the riveting pieces 421 and their positions correspond one-to-one. The second bending assembly 52 is set on the mounting cover 514 and is used to bend the riveting pieces 421 after the first bending block 515 is bent toward the center of the bearing body 41. The third bending assembly 53 is set on the support carrier 3 and is used to press the riveting pieces 421 after the second bending assembly 52 is bent upward onto the bearing cover 4.

[0035] When the hydraulic cylinder 511 is activated and controls the mounting plate 512 to descend, the guide rod 513, the mounting cover 514, and the first bending block 515 move downwards synchronously, thereby causing the first bending block 515 to bend its corresponding riveting piece 421 downwards, completing the first bending action of the riveting piece 421. The second bending assembly 52 bends the riveting piece 421 bent by the first bending block 515 toward the center of the bearing body 41, and the third bending assembly 53 presses the riveting piece 421 bent by the second bending assembly 52 upwards onto the bearing cover 4, completing the automated assembly operation of the oil-impregnated bearing and the motor end cover 42.

[0036] like Figure 8 and Figure 9 As shown, the second bending assembly 52 includes a first screw 520, a first motor 521, a lower movable plate 522, a sleeve 523, an upper movable plate 524, a connecting lug 525, a second screw 526, a second motor 527, an abutment rod 528, a second bending block 529, and a reset unit 530. The upper and lower ends of the first screw 520 are rotatably connected to the mounting plate 512 and the mounting cover 514, respectively. The first motor 521 is fixed to the mounting plate 512 and is used to drive the first screw 526. 20 rotates, the lower movable plate 522 is threadedly connected to the first screw 520, and the lower movable plate 522 is slidably engaged with the guide rod 513; the lower end of the sleeve 523 is open and fixed to the lower movable plate 522, the upper movable plate 524 is sleeved on the sleeve 523 and slidably engaged, and the connecting ear 525 is fixed to the sleeve 523; the second screw 526 passes through the upper movable plate 524 and is threadedly connected, and the second motor 527 is fixed to the connecting ear 525 and used to drive the second screw 526 to rotate; the abutment rod 5 28 is fixed on the upper movable plate 524. Through holes 6 are provided through the mounting cover 514, the first bending block 515, and the lower movable plate 522 for the abutment rod 528 to pass through. A through hole 5151 communicating with the through hole 6 is provided through the first bending block 515, extending towards the bearing body 41. The second bending block 529 slides within the through hole 5151. The cross-section of the second bending block 529 is U-shaped, with both ends of the second bending block 529 located away from the bearing body on the bearing cover 4. On one side of 41, the distance between the inner side of the U-shaped portion of the second bending block 529 and the bearing body 41 increases from top to bottom. The lower end of the abutment rod 528 is provided with an inclined surface 5281 that mates with the inner side of the U-shaped portion of the second bending block 529. The reset unit 530 is used to keep the second bending block 529 retracted in the through hole 5151. The number of reset units 530, the number of second bending blocks 529, and the number of abutment rods 528 are all equal to the number of first bending blocks 515, and their positions correspond one-to-one.

[0037] After the control center of the assembly equipment starts the first motor 521, the first screw 520 rotates. Due to the sliding fit between the lower movable plate 522 and the guide rod 513, the lower movable plate 522, sleeve 523, upper movable plate 524, connecting lug 525, second screw 526, second motor 527, and abutment rod 528 all move down synchronously. When the movable plate 522 abuts against the top of the mounting cover 514, the control center of the assembly equipment controls the first motor 521 to shut down and simultaneously controls the second motor 527 to start and drive the second screw 526 to rotate. Due to the sliding fit between the upper movable plate 524 and the sleeve 523, the upper movable plate 524 drives all the abutting rods 528 to descend synchronously. The design of the inclined surface 5281 at the lower end of the abutting rod 528 and the inner side of the U-shaped part of the second bending block 529 can convert the downward pressure of the abutting rod 528 into a bending force towards the center of the bearing body 41, thereby controlling the second bending block 529 to move towards the side closer to the bearing body 41, so that the second bending block 529 completes the second bending action of bending the riveted piece 421 after the first bending towards the side closer to the bearing body 41. When the control center of the assembly equipment resets the lower movable plate 522 and the upper movable plate 524, the abutment rod 528 disengages from the through hole 6, and the second bending block 529 retracts into the through hole 5151 under the action of the reset unit 530, so as to facilitate the next secondary bending operation.

[0038] like Figure 9 As shown, a groove 5152 is provided on the inner wall of the through hole 5151. Each set of reset units 530 includes a sliding plate 5301 and a spring 5302. The sliding plate 5301 is fixed to the side wall of the second bending block 529 and slides in cooperation with the groove 5152. The two ends of the spring 5302 are respectively fixed to the sliding plate 5301 and the side of the groove 5152 near the bearing body 41. When the abutment rod 528 disengages from the through hole 6, the second bending block 529 retracts into the through hole 5151 on the side of the through hole 6 away from the bearing body 41 under the combined action of the sliding plate 5301 and the spring 5302, so that the second bending block 529 can perform a second bending on the riveting piece 421 when the abutment rod 528 moves down next time.

[0039] like Figure 8 and Figure 10 As shown, the support carrier 3 includes a U-shaped frame 31, an electric push rod 32, a mounting rod 33, a support plate 34, an arc-shaped block 35, and a positioning block 36. The U-shaped frame 31 is fixed to the bottom of the rotary table 2, the electric push rod 32 is fixed to the U-shaped frame 31, the mounting rod 33 is fixed to the upper end of the electric push rod 32, the support plate 34 is fixed to the upper end of the mounting rod 33, multiple arc-shaped blocks 35 are provided and evenly fixed to the side wall of the support plate 34, and the positioning block 36 is fixed to the top center of the support plate 34. The diameter of the positioning block 36 is smaller than the inner diameter of the bearing body 41, and the inner wall of the arc-shaped block 35 fits against the outer wall of the bearing cover 4.

[0040] Combination Figure 9As shown, the support plate 34, in conjunction with multiple arc-shaped blocks 35, provides excellent load-bearing support for the bearing cover 4, ensuring stability during the assembly process of the oil-impregnated bearing and the motor end cover 42. The linkage design of the electric push rod 32, the mounting rod 33, and the support plate 34 allows for flexible adjustment of the height of the support plate 34, enabling the support carrier 3 to adapt to the height requirements of different workstations (such as feeding, oil filling, and pressing) for the bearing cover 4 and the bearing body 41, thus improving the versatility and adaptability of the equipment.

[0041] like Figure 7 , Figure 8 , Figure 9 and Figure 11 As shown, the third bending assembly 53 includes a connecting unit 531, a bending unit 532, and a power unit 533. The connecting unit 531 includes a horizontal plate 5311 and a sliding seat 5312. The horizontal plate 5311 is sleeved on the mounting rod 33 and rotatably connected to it. The sliding seat 5312 is fixedly sleeved on the mounting rod 33 and located at the top of the horizontal plate 5311. The number of bending units 532 is equal to the number of second bending blocks 529, and their positions correspond one-to-one. The bending unit 532 includes a sliding block 5321, a pushing rod 5322, and a diagonal brace 5323. The sliding block 5321 slides with the sliding seat 5312 and can move towards or away from the mounting rod 33. The pushing rod 5322 is fixed to the sliding block 5321, and the horizontal plate 5311 extends through... An arc-shaped hole 53111 is provided for sliding engagement with the push rod 5322. The arc-shaped hole 53111 is eccentrically positioned with the mounting rod 33. The top of the diagonal brace 5323 is hinged to the top of the sliding block 5321. The upper ends of multiple diagonal braces 5323 are hinged together with a bending member 5324. The bending member 5324 is sleeved on the mounting rod 33 and can slide with the mounting rod 33. The top of the bending member 5324 is integrally formed with a top rod 53241. The number of top rods 53241 is equal to the number of the second bending blocks 529 and their positions correspond one-to-one. The inner diameter of the top rod 53241 is larger than the outer diameter of the bearing cover 4, and the inner wall of the top rod 53241 is adjacent to the outer wall of the bearing cover 4. The power unit 533 is set on the mounting rod 33 and is used to drive the horizontal plate 5311 to rotate.

[0042] After the control center of the assembly equipment controls the power unit 533 to work, it can make the horizontal plate 5311 rotate. Since the arc-shaped hole 53111 on the horizontal plate 5311 slides and engages with the push rod 5322, and the arc-shaped hole 53111 is eccentrically set with the mounting rod 33, the push rod 5322 drives the sliding block 5321 to move towards the side closer to the mounting rod 33. This causes multiple diagonal bracing rods 5323 to cooperate and control the bending piece 5324 to rise. The top rod 53241 on the bending piece 5324 presses the riveted piece 421, which has been bent twice, upward onto the bearing cover 4, completing the assembly of the oil-impregnated bearing and the motor end cover 42.

[0043] The power unit 533 includes a fixed rod 5331, a bending cylinder 5332, and a connecting block 5333. The fixed rod 5331 is fixed to the mounting rod 33. The bending cylinder 5332 is hinged to the fixed rod 5331. The connecting block 5333 is fixed to the horizontal plate 5311 and hinged to the end of the piston rod of the bending cylinder 5332. After the control center of the assembly equipment controls the bending cylinder 5332 to work, the piston rod of the bending cylinder 5332 pushes the horizontal plate 5311 to rotate through the connecting block 5333, thereby causing the push rod 53241 on the bending part 5324 to complete the final bending (the final assembled product is as follows). Figure 15 (As shown).

[0044] like Figure 5 , Figure 12 and Figure 13 As shown, a calibration hole 5141 is provided through the mounting cover 514 at the position corresponding to the screw hole 422 of the motor end cover 42. A calibration component 7 is provided on the mounting cover 514. The calibration component 7 includes a calibration cylinder 71, a swing arm 72, a calibration motor 73, and a friction wheel 74. One end of the calibration cylinder 71 and one end of the swing arm 72 are both hinged to the top of the mounting cover 514. The other end of the calibration cylinder 71 is hinged to the middle section of the swing arm 72. The calibration motor 73 is fixed on the swing arm 72. The friction wheel 74 is coaxially arranged with the output end of the calibration motor 73 and is fixedly connected. A notch 5142 is provided through the mounting cover 514 at the position corresponding to the friction wheel 74 for the friction wheel 74 to enter. A position sensor 171 for calibrating the relative position of the screw hole 422 and the calibration hole 5141 is fixed on the mounting bracket 17.

[0045] When the motor end cover 42 moves with the oil-impregnated bearing to below the mounting cover 514, the control center starts the hydraulic cylinder 511 and causes the mounting cover 514 to descend until the mounting cover 514 covers the motor end cover 42. At this time, there may be a positional deviation between the first bending block 515 on the mounting cover 514 and the riveting piece 421 on the motor end cover 42. The position sensor 171 can monitor the position of the screw hole 422 on the motor end cover 42 and the calibration hole 5141 on the mounting cover 514. The monitoring result is transmitted to the control center in the form of an electrical signal. The control center controls the calibration cylinder 71 to start, so that the piston rod of the calibration cylinder 71 drives the swing arm 72 to rotate, thereby causing the friction wheel 74 to enter the recess 5142 and press against the outer wall of the motor end cover 42. At this time, the control center controls the calibration motor 73 to start and drive the friction wheel 74 to rotate. The friction wheel 74 drives the motor end cover 42 to rotate until the position sensor 171 detects that the screw hole 422 and the calibration hole 5141 are in the same position. Then, the control center controls the calibration motor 73 to shut down, and then continues to control the hydraulic cylinder 511 to lower the mounting cover 514. The first bending block 515 performs a bending action on the riveting piece 421. The calibration component 7 was designed to complete the calibration of the mounting cover 514 and the motor end cover 42, ensuring the smooth riveting of the riveting piece 421.

[0046] like Figure 4 and Figure 14 As shown, the first feeding assembly 11 includes a first feeding frame 111, a transfer frame 112, a transfer motor 113, a swing arm 114, and an electric suction cup 115. The first feeding frame 111 is fixed on the base 1, and a first conveyor belt 116 for conveying the bearing cover 4 is provided on the first feeding frame 111 (the technology for driving the first conveyor belt 116 to rotate is a mature technology and does not need to be described in detail here). The transfer frame 112 is fixed on the base 1, the transfer motor 113 is fixed on the transfer frame 112, the swing arm 114 is fixed to the output shaft of the transfer motor 113, and two electric suction cups 115 are provided and fixed to both ends of the swing arm 114 respectively.

[0047] The control center can drive the swing arm 114 to rotate through the transfer motor 113. The design of fixing electric suction cups 115 at both ends of the swing arm 114 can realize the synchronous action of "one suction cup picking up the bearing cover 4 from the first conveyor belt 116 and the other suction cup lowering the bearing cover 4 to the support carrier 3". There is no need to wait for a single electric suction cup 115 to go back and forth, which greatly shortens the transfer cycle of the bearing cover 4 and ensures the material supply efficiency of the bearing cover 4 and the assembly efficiency of the entire assembly process.

[0048] like Figure 1 As shown, in this embodiment, the bearing cover 4 has a U-shaped cross-section, and the edge of the bearing cover 4 extends toward the side away from its axis.

[0049] Example 2: As Figure 16 As shown, the only difference between this embodiment and Embodiment 1 is that the bearing cover 4 is in the shape of a circular plate, with multiple bearing bodies 41 arranged in the center for mounting (in conjunction with...) Figure 2 and Figure 15 The clamping metal sheet 43 (as shown)

[0050] The motor end cover described in this application refers to the end cover of the energy-saving starter motor on a fully automatic or semi-automatic energy-saving washing machine, and is a component of an energy-saving household appliance. By using the assembly method and equipment for assembling the oil-impregnated bearing and motor end cover provided in this application, the continuity and precision of the assembly operation and the stability of the finished product assembly quality are ensured. The assembled motor end cover facilitates quick assembly with the energy-saving motor, and enables the energy-saving motor to operate smoothly and stably, achieving a high-efficiency energy-saving effect.

[0051] 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. An oil-impregnated bearing and motor end cap assembly apparatus, characterized by: It includes a rotary table (2), a first feeding assembly (11), a second feeding assembly (12), an oil filling assembly (13), a third feeding assembly (14), a pressing mechanism (5), an unloading assembly (15), and a support carrier (3); The first feeding assembly (11), the second feeding assembly (12), the oil filling assembly (13), the third feeding assembly (14), the pressing mechanism (5), and the unloading assembly (15) are all set on the base (1) and distributed sequentially along the periphery of the rotating table (2). The support carrier (3) has six sets, which correspond one-to-one with the first feeding assembly (11), the second feeding assembly (12), the oil filling assembly (13), the third feeding assembly (14), the pressing mechanism (5), and the unloading assembly (15). A mounting bracket (17) is fixed on the base (1). The pressing mechanism (5) includes a first bending assembly (51), a second bending assembly (52) and a third bending assembly (53). The first bending assembly (51) is set on the mounting bracket (17) and is used to bend the riveting piece (421) downward. The first bending assembly (51) includes a hydraulic cylinder (511), a mounting plate (512), a guide rod (513), a mounting cover (514) and a first bending block (515). The hydraulic cylinder (511) is fixed on the mounting bracket (17), the mounting plate (512) is fixed to the lower end of the output rod of the hydraulic cylinder (511), the guide rod (513) is fixed on the mounting plate (512), the top of the mounting cover (514) is fixed to the lower end of the guide rod (513), the inner bottom of the mounting cover (514) is aligned with the motor end cover (42) and inserted into it, the first bending block (515) is fixed to the inner bottom of the mounting cover (514), the number of the first bending block (515) is equal to the number of the riveting piece (421) and their positions correspond one to one; The second bending assembly (52) is disposed on the mounting cover (514) and is used to bend the riveted piece (421) after the first bending block (515) is bent toward the center of the bearing body (41). The third bending assembly (53) is disposed on the support carrier (3) and is used to press the riveted piece (421) after the second bending assembly (52) is bent upward onto the bearing cover (4). The second bending assembly (52) includes a first screw (520), a first motor (521), a lower movable plate (522), a sleeve (523), an upper movable plate (524), a connecting lug (525), a second screw (526), ​​a second motor (527), an abutment rod (528), a second bending block (529), and a reset unit (530); The upper and lower ends of the first screw (520) are rotatably connected to the mounting plate (512) and the mounting cover (514) respectively. The first motor (521) is fixed on the mounting plate (512) and used to drive the first screw (520) to rotate. The lower movable plate (522) is threadedly connected to the first screw (520) and is slidably engaged with the guide rod (513). The lower end of the sleeve (523) is open and fixed to the lower movable plate (522). The upper movable plate (524) is... The first screw is fitted onto the sleeve (523) and slidably engaged; the connecting ear (525) is fixed to the sleeve (523); the second screw (526) passes through the upper movable plate (524) and is threadedly connected; the second motor (527) is fixed to the connecting ear (525) and is used to drive the second screw (526) to rotate; the abutment rod (528) is fixed to the upper movable plate (524); the mounting cover (514) and the first bending block (515) are both provided with abutment rods (528). A through hole (6) is provided through the first bending block (515), which communicates with the through hole (6). The through hole (5151) extends toward the bearing body (41). The second bending block (529) is slidably engaged with the through hole (5151). The cross-section of the second bending block (529) is U-shaped. The two ends of the second bending block (529) are located on the side of the bearing cover (4) away from the bearing body (41). The inner side of the U-shaped part of the second bending block (529) is connected to the bearing. The distance between the bodies (41) increases from top to bottom. The lower end of the abutment rod (528) is provided with a bevel (5281) that cooperates with the inner side of the U-shaped part of the second bending block (529). The reset unit (530) is used to keep the second bending block (529) retracted in the through hole (5151). The number of reset units (530), the number of second bending blocks (529), and the number of abutment rods (528) are all equal to the number of first bending blocks (515), and their positions correspond one-to-one.

2. An oil-impregnated bearing and motor end cap assembly apparatus as defined in claim 1, wherein: A sliding groove (5152) is provided on the inner wall of the through hole (5151). Each set of reset units (530) includes a sliding plate (5301) and a spring (5302). The sliding plate (5301) is fixed to the side wall of the second bending block (529) and slides in cooperation with the sliding groove (5152). The two ends of the spring (5302) are respectively fixed to the sliding plate (5301) and the side of the sliding groove (5152) near the bearing body (41).

3. An oil-impregnated bearing and motor end cap assembly apparatus as defined in claim 1, wherein: The support carrier (3) includes a U-shaped frame (31), an electric push rod (32), a mounting rod (33), a tray (34), an arc-shaped block (35), and a positioning block (36). The U-shaped frame (31) is fixed to the bottom of the rotary table (2), the electric push rod (32) is fixed to the U-shaped frame (31), the mounting rod (33) is fixed to the upper end of the electric push rod (32), the tray (34) is fixed to the upper end of the mounting rod (33), multiple arc-shaped blocks (35) are provided and evenly fixed to the side wall of the tray (34), and the positioning block (36) is fixed to the center of the top of the tray (34). The diameter of the positioning block (36) is smaller than the inner diameter of the bearing body (41), and the inner wall of the arc-shaped block (35) is in contact with the outer wall of the bearing cover (4).

4. An oil-impregnated bearing and motor end cap assembly apparatus as defined in claim 3, wherein: The third bending assembly (53) includes a connecting unit (531), a bending unit (532), and a power unit (533); the connecting unit (531) includes a horizontal plate (5311) and a sliding seat (5312), the horizontal plate (5311) is sleeved on the mounting rod (33) and rotatably connected thereto, and the sliding seat (5312) is fixedly sleeved on the mounting rod (33) and located on the top of the horizontal plate (5311); The number of bending units (532) is equal to the number of second bending blocks (529) and their positions correspond one-to-one. The bending unit (532) includes a sliding block (5321), a push rod (5322), and a diagonal brace (5323). The sliding block (5321) is slidably engaged with the sliding seat (5312) and can move toward the side closer to or away from the mounting rod (33). The push rod (5322) is fixed to the sliding block (5321). An arc-shaped hole (53111) for sliding engagement of the push rod (5322) is provided through the horizontal plate (5311). The arc-shaped hole (53111) is eccentrically positioned with respect to the mounting rod (33). The diagonal brace (5323) is eccentrically engaged with the sliding block (5321). The top of the block (5321) is hinged, and the upper ends of multiple diagonal braces (5323) are hinged together with a bending member (5324). The bending member (5324) is sleeved on the mounting rod (33) and can slide with the mounting rod (33). The top of the bending member (5324) is integrally formed with a top rod (53241). The number of top rods (53241) is equal to the number of the second bending block (529) and their positions correspond one-to-one. The inner diameter of the top rod (53241) is larger than the outer diameter of the bearing cover (4), and the inner wall of the top rod (53241) is adjacent to the outer wall of the bearing cover (4). The power unit (533) is set on the mounting rod (33) and is used to drive the horizontal plate (5311) to rotate.

5. An oil-impregnated bearing and motor end cap assembly apparatus as defined in claim 4, wherein: The power unit (533) includes a fixed rod (5331), a bending cylinder (5332), and a connecting block (5333). The fixed rod (5331) is fixed to the mounting rod (33), the bending cylinder (5332) is hinged to the fixed rod (5331), and the connecting block (5333) is fixed to the horizontal plate (5311) and hinged to the piston rod end of the bending cylinder (5332).

6. An oil-impregnated bearing and motor end cap assembly apparatus as defined in claim 1, wherein: A calibration hole (5141) is provided through the mounting cover (514) at the position corresponding to the screw hole (422) of the motor end cover (42), and a calibration component (7) is provided on the mounting cover (514); The calibration assembly (7) includes a calibration cylinder (71), a swing arm (72), a calibration motor (73), and a friction wheel (74). One end of the calibration cylinder (71) and one end of the swing arm (72) are both hinged to the top of the mounting cover (514). The other end of the calibration cylinder (71) is hinged to the middle section of the swing arm (72). The calibration motor (73) is fixed on the swing arm (72). The friction wheel (74) is coaxially set and fixedly connected to the output end of the calibration motor (73). A notch (5142) for the friction wheel (74) to enter is provided through the mounting cover (514) at the position corresponding to the friction wheel (74). A position sensor (171) for the relative position of the calibration screw hole (422) and the calibration hole (5141) is fixed on the mounting bracket (17).

7. The assembly equipment for an oil-impregnated bearing and a motor end cover according to claim 1, characterized in that: The first feeding assembly (11) includes a first feeding frame (111), a transfer frame (112), a transfer motor (113), a swing arm (114), and an electric suction cup (115). The first feeding frame (111) is fixed on the base (1), and a first conveyor belt (116) for conveying the bearing cover (4) is provided on the first feeding frame (111). The transfer frame (112) is fixed on the base (1), the transfer motor (113) is fixed on the transfer frame (112), the swing arm (114) is fixed to the output shaft of the transfer motor (113), and two electric suction cups (115) are provided and fixed to both ends of the swing arm (114).

8. A method for assembling an oil-impregnated bearing with a motor end cover, characterized in that, Includes the following steps: S1: The bearing cover (4) is provided to the support carrier (3) set on the rotary table (2) by the first feeding component (11). The rotary table (2) is set on the base (1) and can rotate under the drive of the drive mechanism (16). The support carrier (3) moves synchronously with the rotary table (2). S2: When the support carrier (3) rotates with the rotary table (2) to the position corresponding to the second feeding assembly (12), the bearing body (41) is installed into the bearing cover (4) inside the support carrier (3) through the second feeding assembly (12); S3: When the support carrier (3) rotates with the rotary table (2) to the position corresponding to the oil filling component (13), lubricating grease is filled into the bearing body (41) through the oil filling component (13); S4: When the support carrier (3) rotates with the rotary table (2) to the corresponding position of the third feeding assembly (14), the motor end cover (42) is assembled onto the bearing body (41) after it is filled with grease through the third feeding assembly (14); S5: When the support carrier (3) rotates with the rotary table (2) to the corresponding position of the pressing mechanism (5), the rivet piece (421) on the motor end cover (42) is riveted and fixed to the bearing cover (4) by the pressing mechanism (5), thus completing the assembly of the oil-impregnated bearing and the motor end cover (42). S6: When the support carrier (3) rotates with the rotary table (2) to the corresponding position of the unloading assembly (15), the assembled parts are removed from the support carrier (3) by the unloading assembly (15) to achieve unloading.

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