Motor end cover and bearing press fitting device and press fitting method

Abstract

The application relates to the technical field of motor assembly, and discloses a motor end cover and bearing press-fitting device and press-fitting method, which comprises a plurality of end cover bodies, bearing bodies and a frame body. The bottom of the frame body is provided with a rotary table, the rotary part of the rotary table is provided with a plurality of positioning modules for positioning the end cover bodies, a plurality of work stations are formed by rotating the plurality of positioning modules, one side of the positioning module is provided with a transfer limiting module for limiting the bearing bodies when the bearing bodies are transferred between work stations, and the top of the frame body is provided with an end cover feeding module for containing and feeding a single end cover body. The rear end of the end cover feeding module is provided with a position changing module for changing the position of the transfer limiting module. The application can not only realize the transfer limiting of the bearing, but also realize the identification of the end cover and the automatic position changing of the transfer limiting, thereby improving the smoothness of the device operation and the processing efficiency of the bearing end cover press-fitting.

Description

Technical Field

[0001] This invention relates to the field of motor assembly technology, specifically to a press-fitting device and method for motor end caps and bearings. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It mainly consists of a motor housing, rotor, stator, bearings, end covers, cooling system, and control system. The end covers are divided into front end covers and rear end covers. Whether it is a front end cover or a rear end cover, the bearings need to be installed on the end cover.

[0003] Currently, most bearing installations on the market for rear end caps involve first installing the bearing onto the end cap, and then connecting the bearing to the rotor.

[0004] A search revealed Chinese patent CN107612236B, which discloses an automatic pressing device for motor end caps and bearings. This device offers advantages such as improved production efficiency, reduced labor costs, and prevention of component damage from collisions. However, it still has the following problems:

[0005] 1. Since the bearing and the end cover are interference fit, the pressing and bearing loading are completed at different stations. Since the bearing is not inside the end cover, it is easy for the bearing to tilt during the station change process. The bearing position needs to be manually adjusted before pressing, resulting in low pressing efficiency.

[0006] 2. During the press-fitting process of the end cover and the bearing, if the end cover is used up and not replenished, but the bearing is not used up, the bearing will be directly pushed by the set program, causing the bearing to fall directly into the subsequent processing station, thus affecting the subsequent processing.

[0007] 3. During the bearing switching process, the bearing positioning mechanism will block the subsequent end cap loading. Therefore, how to solve the bearing positioning and the effective avoidance of the initial end cap unloading are also urgent problems to be solved. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a motor end cover and bearing press-fitting device and method. The main solutions are to address the following issues: during station transitions, bearings are prone to tilting, requiring manual adjustment of the bearing position before press-fitting, resulting in low press-fitting efficiency; if the end cover is used up but not replenished, and the bearing is not yet used, the program will directly push the bearing into the subsequent processing station, affecting subsequent processing; and during bearing station transitions, the bearing positioning mechanism can obstruct subsequent end cover loading. Therefore, solving the bearing positioning problem and effectively avoiding initial end cover unloading are also urgent issues to be addressed.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A motor end cap and bearing pressing device includes multiple end cap bodies, bearing bodies, and a frame. The bottom of the frame has a turntable, and the rotating part of the turntable has multiple positioning modules for positioning the end cap bodies. These positioning modules rotate to form multiple workstations. One side of each positioning module has a transfer limiting module for limiting the bearing body when changing workstations. The top of the frame has an end cap loading module for holding and individually unloading end cap bodies. The rear end of the end cap loading module has a repositioning module for changing the position of the transfer limiting module. The rear end of the repositioning module has a bearing loading module for holding and individually unloading bearing bodies. One side of the bearing loading module has an end cap identification module for detecting the presence or absence of end cap bodies within the positioning modules. The rear end of the bearing loading module has a pressing module for pressing the bearing body and end cap body together. The rear end of the pressing module has a reset module for ejecting the end cap body.

[0011] Furthermore, the positioning module includes a positioning seat fixed on the turntable. The top of the positioning seat is provided with a placement groove for placement and limiting. A placement plate is slidably connected to the inner circumference of the placement groove. Multiple springs are fixed between the placement plate and the placement groove by bolts.

[0012] Based on the aforementioned scheme, the transfer limiting module includes a rotating shaft that rotates on one side of the positioning seat. A mounting bracket is fixed to the top of the rotating shaft by a nut. A limiting bracket is slidably connected to the inner circumference of the mounting bracket. A limiting hole is opened at the center of the limiting bracket, and the diameter of the limiting hole is slightly larger than the diameter of the bearing body. A plurality of first arc-shaped grooves and second arc-shaped grooves are respectively opened on the outer circumference of the limiting bracket, and the first arc-shaped grooves are located below the second arc-shaped grooves. A plurality of first mounting grooves are opened on the outer circumference of the mounting bracket. A first elastic ball that can be inserted into the first arc-shaped groove or the second arc-shaped groove is bonded in the first mounting groove, and the sum of the elastic forces of the plurality of first elastic balls is much greater than the sum of the elastic forces of the plurality of springs. A first cylinder is fixed to the top of the frame by bolts. A first pressure plate is fixed to the movable end of the first cylinder by bolts. A positioning component for auxiliary limiting of the rotating shaft is provided on one side of the positioning seat.

[0013] As a further embodiment of the present invention, the positioning component includes two fixing posts fixed to one side of the positioning seat, a second mounting groove is provided at the bottom of the fixing posts, a second elastic ball is bonded in the second mounting groove, a circular plate is welded to the bottom of the rotating shaft, and two third arc-shaped grooves are provided at the top of the circular plate, with the second elastic ball located in the third arc-shaped groove.

[0014] Furthermore, the avoidance module includes two fixed brackets fixed to the top of the frame, an arc-shaped rack welded to one side of the fixed bracket, and a second gear keyed to the outer circumference of the rotating shaft, and the second gear can mesh with the arc-shaped rack.

[0015] Based on the aforementioned scheme, the end cap feeding module includes a first placement frame fixed to the top of the frame body. A first electric push rod is fixed to one side of the first placement frame by bolts. A slide is fixed to the movable end of the first electric push rod by bolts. Straight racks are welded to both sides of the slide. C-shaped frames are rotatably connected to both sides of the first placement frame. A first gear is fixed to one side of the C-shaped frame by a shaft, and the first gear meshes with the straight rack. Alternating openings are provided on both sides of the first placement frame, and both ends of the C-shaped frame are located within the alternating openings.

[0016] As a further embodiment of the present invention, the bearing loading module includes a second placement frame fixed to the top of the frame body. A guide frame is welded to the bottom of the second placement frame. A guide groove is opened at the top of the guide frame. A material outlet is opened at one end of the bottom inner wall of the guide groove. A second electric push rod is fixed to the top of the guide frame by bolts. A connecting plate is fixed to the movable end of the second electric push rod by bolts. An insertion hole is opened at the bottom of the connecting plate. A push plate is slidably connected in the guide groove. A sliding hole is opened at the bottom of the push plate. A slider is slidably connected in the sliding hole, and the top of the slider can be inserted into the insertion hole. The end cap identification module is used to control the up and down movement of the slider.

[0017] Furthermore, the end cap recognition module includes a sliding opening at the bottom of the guide frame, a connecting frame slidably connected inside the sliding opening, and one end of the slider is inserted into the sliding opening and contacts the top of the connecting frame. A ball rolls at the bottom of the connecting frame. A force arm is rotatably connected to the bottom of the placement plate. A slide plate that passes through and is slidably connected to the positioning seat is rotatably connected to one end of the force arm. A frustum is welded to one end of the slide plate, and the frustum can contact the ball.

[0018] Based on the aforementioned scheme, the pressing module includes a second cylinder fixed to the top of the frame, and the movable end of the second cylinder is fixed with a second pressure plate by bolts. The reset module includes a third cylinder fixed to the top of the frame, and the movable end of the third cylinder is fixed with an inner plate by bolts. The outer circumferential wall of the inner plate is provided with multiple clearance grooves, and the bottom inner wall of the clearance groove is welded with an arc-shaped elastic plate.

[0019] A method for press-fitting an electric motor end cover and a bearing includes the following steps:

[0020] Step 1: First, place multiple end cap bodies into the end cap feeding module, and then place multiple bearing bodies into the bearing feeding module;

[0021] Step 2: The end cap body is transported to the positioning module through the end cap feeding module. Then the turntable is started. The turntable drives the positioning module to rotate and change the station. During the station change process, the transfer limiting module is moved to the top of the end cap body through the avoidance module.

[0022] Step 3: Use the transfer limiting module to press down on the end cap body, thereby activating the end cap recognition module, and continue to start the turntable. The turntable drives the positioning module to rotate and change the work position.

[0023] Step 4: After the end cap recognition module is activated, the bearing feeding module can transport a single bearing body to the transfer limiting module and make contact with the end cap body. Then, the turntable is started, and the turntable drives the positioning module to rotate and change the work position.

[0024] Step 5: Start the press-fit module. The press-fit module presses the bearing body into the end cover body by interference fit, thereby completing the press-fit of the bearing body. Then start the turntable. The turntable drives the positioning module to rotate and change the work position.

[0025] Step 6: Reset the transfer limit module by resetting the module, so that the transfer limit module can rotate. Start the turntable, and the turntable drives the positioning module to rotate and change the work position.

[0026] Step 7: During the process of the positioning module moving from the reset module station to the unloading station, the avoidance module will move the transfer limit module away from the top of the positioning module, so that the press-fitted end cap bearing can be directly removed. The entire press-fitting process can realize the transfer limit of the bearing, the identification of the end cap, and the automatic avoidance of the transfer limit, thereby improving the smoothness of the device operation and the processing efficiency of the bearing end cap press-fitting.

[0027] Compared with the prior art, the present invention provides a pressing device and pressing method for motor end caps and bearings, which has the following advantages:

[0028] 1. This invention, through the coordinated use of multiple modules, can realize the transfer and limiting of bearings, the identification of end caps, and the automatic avoidance of transfer and limiting, thereby improving the smoothness of device operation and the processing efficiency of bearing end cap pressing.

[0029] 2. This invention, by incorporating a positioning module, achieves positioning and limiting of the end cap body, ensuring that the end cap body's position within the placement slot does not change due to changes in workstations, thereby improving the accuracy of end cap positioning.

[0030] 3. By incorporating a transfer limiting module, the present invention prevents the bearing body from shifting position during the transition process, thereby limiting the bearing body during the transition process and improving the accuracy of bearing body positioning.

[0031] 4. The present invention has a positioning component, in which the second elastic ball is inserted into the third arc-shaped groove to fix the rotating shaft, thereby fixing the position of the limiting frame, so that the limiting frame can be accurately inserted into the placement groove, improving the stability of the device operation.

[0032] 5. By incorporating an avoidance module, this invention enables the limiting frame to be positioned either above or away from the placement slot. When the limiting frame is away from the placement slot, loading and unloading operations can be performed. When the limiting frame is above the placement slot, the bearing body's position transfer and limiting operation can be performed, thus improving the smoothness of the device's operation.

[0033] 6. The present invention provides an end cap feeding module to feed the bottom end cap body while blocking the other end cap bodies, thereby achieving feeding of a single end cap body and improving the feeding accuracy of the device.

[0034] 7. The present invention provides a bearing feeding module to feed the bottommost bearing body while blocking the remaining bearing bodies, thereby achieving feeding of a single end cap body and further improving the feeding accuracy of the device.

[0035] 8. By incorporating an end cap identification module, this invention avoids the situation where the bearing body is still being fed into the placement slot even when there is no end cap body in the slot, thereby preventing the bearing body from falling into the placement slot and needing to be removed, and improving the accuracy of bearing body feeding.

[0036] 9. The present invention, by providing a reset module, can both allow the pressed end cap to extend beyond the placement groove by a portion, thereby facilitating the removal of the pressed end cap and improving the convenience of end cap removal, and allow the limiting frame to return to its initial position, so that it can be driven to rotate by the avoidance module, further improving the convenience of end cap removal. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of a motor end cover and bearing press-fitting device proposed in this invention;

[0038] Figure 2 This is an enlarged schematic diagram of the turntable structure of a motor end cover and bearing press-fitting device proposed in this invention;

[0039] Figure 3 This invention provides a motor end cover and bearing press-fitting device. Figure 1 A partially enlarged structural diagram;

[0040] Figure 4 This is a cross-sectional view of the positioning module of the motor end cover and bearing press-fitting equipment proposed in this invention;

[0041] Figure 5 This invention provides a motor end cover and bearing press-fitting device. Figure 4 A partially enlarged structural diagram;

[0042] Figure 6 This invention provides a motor end cover and bearing press-fitting device. Figure 4 A partial sectional view of the structure;

[0043] Figure 7 This invention provides a motor end cover and bearing press-fitting device. Figure 6 A magnified structural diagram of part A;

[0044] Figure 8 This is an enlarged structural schematic diagram of the end cover feeding module of the motor end cover and bearing pressing equipment proposed in this invention;

[0045] Figure 9 This invention provides a motor end cover and bearing press-fitting device. Figure 8 A partial sectional view of the structure;

[0046] Figure 10 This invention provides a motor end cover and bearing press-fitting device. Figure 3 A partially enlarged structural diagram;

[0047] Figure 11 This is an enlarged structural diagram of the bearing loading module of a motor end cover and bearing press-fitting equipment proposed in this invention;

[0048] Figure 12 This invention provides a motor end cover and bearing press-fitting device. Figure 11 A partial sectional view of the structure;

[0049] Figure 13 This is an enlarged structural diagram of a pressing module for a motor end cover and bearing pressing equipment proposed in this invention;

[0050] Figure 14 This is an enlarged structural diagram of the reset module of a motor end cover and bearing press-fitting equipment proposed in this invention;

[0051] Figure 15 This invention provides a motor end cover and bearing press-fitting device. Figure 14 A partial sectional view of the structure;

[0052] Figure 16 This is an enlarged schematic diagram of the fixing frame structure of the motor end cover and bearing press-fitting equipment proposed in this invention.

[0053] In the diagram: 1. Frame; 2. Turntable; 3. Positioning module; 301. Positioning seat; 302. Placement slot; 303. Placement plate; 304. Spring; 4. End cap feeding module; 401. First placement frame; 402. First electric push rod; 403. Slide; 404. Straight rack; 405. Alternating notch; 406. First gear; 407. C-shaped frame; 5. Transfer limiting module; 501. Rotating shaft; 502. Mounting frame; 503. Limiting frame; 504. Limiting hole; 505. First mounting slot; 506. First elastic ball; 507. First arc-shaped groove; 508. Second arc-shaped groove; 509. First cylinder; 510. First pressure plate; 6. Bearing feeding module; 601. Second placement frame; 602. Guide frame; 603. Material passage; 604. Guide slot; 60 5. Second electric push rod; 606. Connecting plate; 607. Insertion hole; 608. Push plate; 609. Slider; 610. Sliding hole; 7. End cap identification module; 701. Lever arm; 702. Slide plate; 703. Frustum; 704. Connecting frame; 705. Rolling ball; 706. Sliding mouth; 8. Press-fit module; 801. Second cylinder; 802. Second pressure plate; 9. Reset module; 901. Third cylinder; 902. Inset plate; 903. Alternating groove; 904. Arc-shaped elastic plate; 10. End cap body; 11. Bearing body; 12. Alternating module; 1201. Second gear; 1202. Fixing column; 1203. Second mounting groove; 1204. Second elastic ball; 1205. Third arc-shaped groove; 1206. Circular plate; 1207. Fixing frame; 1208. Arc-shaped rack. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0055] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] Reference Figures 1-16 A motor end cap and bearing pressing device includes multiple end cap bodies 10, bearing bodies 11, and a frame 1. A turntable 2 is located at the bottom of the frame 1. The rotating part of the turntable 2 is equipped with multiple positioning modules 3 for positioning the end cap bodies 10, and these positioning modules 3 rotate to form multiple workstations. A transfer limiting module 5 is located on one side of each positioning module 3 for limiting the bearing body 11 when changing workstations. An end cap loading module 4 is located at the top of the frame 1 for holding and individually unloading end cap bodies 10. The rear end of module 4 is provided with a positioning avoidance module 12 for changing the position of the transfer limiting module 5. The rear end of the positioning avoidance module 12 is provided with a bearing loading module 6 for holding and individually unloading the bearing body 11. One side of the bearing loading module 6 is provided with an end cap identification module 7 for detecting whether the end cap body 10 inside the positioning module 3 is present. The rear end of the bearing loading module 6 is provided with a pressing module 8 for pressing the bearing body 11 and the end cap body 10. The rear end of the pressing module 8 is provided with a reset module 9 for ejecting the end cap body 10.

[0058] Based on the above, the press-fitting method for the motor end cover and bearing consists of the following steps:

[0059] Step 1: First, place multiple end cap bodies 10 into the end cap feeding module 4, and place multiple bearing bodies 11 into the bearing feeding module 6.

[0060] Step 2: The end cap body 10 is conveyed to the positioning module 3 through the end cap feeding module 4. Then, the turntable 2 is started. The turntable 2 drives the positioning module 3 to rotate and change the working position. During the change of the working position, the transfer limiting module 5 is moved to the top of the end cap body 10 through the avoidance module 12.

[0061] Step 3: Use the transfer limiting module 5 to press down on the end cap body 10, thereby activating the end cap recognition module 7, and continue to start the turntable 2. The turntable 2 drives the positioning module 3 to rotate and change the work position.

[0062] Step 4: After the end cap recognition module 7 is activated, the bearing feeding module 6 can transport a single bearing body 11 into the transfer limiting module 5 and make contact with the end cap body 10. Then, the turntable 2 is started, and the turntable 2 drives the positioning module 3 to rotate and change the work position.

[0063] Step 5: Start the press-fit module 8. The press-fit module 8 presses the bearing body 11 into the end cover body 10 with an interference fit, thereby completing the press-fit of the bearing body 11. Then start the turntable 2. The turntable 2 drives the positioning module 3 to rotate and change the work position.

[0064] Step 6: Reset the transfer limit module 5 by resetting module 9, so that the transfer limit module 5 can rotate, start the turntable 2, and the turntable 2 drives the positioning module 3 to rotate and change the work position;

[0065] Step 7: During the process of positioning module 3 moving from the reset module 9 station to the unloading station, the avoidance module 12 will move the transfer limit module 5 away from the top of positioning module 3, so that the press-fitted end cap bearing can be directly removed. In the entire press-fitting process, the bearing transfer limit can be realized, the end cap can be identified, and the transfer limit can be automatically avoided, which improves the smoothness of the device operation and the processing efficiency of bearing end cap press-fitting.

[0066] In order to achieve the positioning and limiting of the end cap body 10, the positioning module 3 in this invention includes a positioning seat 301 fixed on the turntable 2. The top of the positioning seat 301 is provided with a placement groove 302 for placement and limiting. A placement plate 303 is slidably connected to the inner circumference of the placement groove 302. Multiple springs 304 are fixed between the placement plate 303 and the placement groove 302 by bolts.

[0067] When the end cap body 10 is sent out from the end cap feeding module 4, the end cap body 10 will fall into the placement groove 302 and contact the placement plate 303. The top of the placement groove 302 has the same shape as the end cap body 10, thereby realizing the positioning and limiting of the end cap body 10. This ensures that the position of the end cap body 10 will not change due to the change of work station, thus improving the accuracy of end cap positioning.

[0068] In order to limit the position of the bearing body 11 during the workstation change process, the transfer limiting module 5 of the present invention includes a rotating shaft 501 that rotates on one side of the positioning seat 301. The top of the rotating shaft 501 is fixed with a mounting bracket 502 by a nut. A limiting bracket 503 is slidably connected to the inner circumference of the mounting bracket 502. A limiting hole 504 is opened in the center of the limiting bracket 503. The diameter of the limiting hole 504 is slightly larger than the diameter of the bearing body 11. The limiting hole 504 coincides with the center line of the bearing mounting hole of the end cover body 10.

[0069] When the bearing loading module 6 loads the bearing body 11 individually, the bearing body 11 will fall into the limiting hole 504, so that the bearing body 11 falls on the end cover body 10. And the bearing body 11 will not move during the change of station, thus completing the limiting of the bearing body 11 during the change of station and improving the positioning accuracy of the bearing body 11.

[0070] The outer circumferential wall of the limiting frame 503 is provided with a plurality of first arc-shaped grooves 507 and second arc-shaped grooves 508, and the first arc-shaped grooves 507 are located below the second arc-shaped grooves 508. The outer circumferential wall of the mounting frame 502 is provided with a plurality of first mounting grooves 505. A first elastic ball 506 that can be inserted into the first arc-shaped groove 507 or the second arc-shaped groove 508 is bonded in the first mounting groove 505, and the sum of the elastic forces of the plurality of first elastic balls 506 is much greater than the sum of the elastic forces of the plurality of springs 304.

[0071] When the first elastic ball 506 is located in the first arc-shaped groove 507, the limiting frame 503 is located above the end cap body 10 inside the positioning seat 301, and the limiting frame 503 at this position is auxiliaryly fixed. When the first elastic ball 506 is located in the second arc-shaped groove 508, the limiting frame 503 is located in the placement groove 302, and presses the end cap body 10 and the placement plate 303, so that the end cap body 10 and the placement plate 303 will not be reset by the spring 304.

[0072] The top of the frame 1 is fixed with a first cylinder 509 by bolts, and the movable end of the first cylinder 509 is fixed with a first pressure plate 510 by bolts. A positioning component for auxiliary limiting of the rotating shaft 501 is provided on one side of the positioning seat 301.

[0073] When the first cylinder 509 is activated, its extension causes the first pressure plate 510 to move downwards, bringing it into contact with the limiting frame 503. The first cylinder 509 continues to extend, causing the limiting frame 503 to move downwards, which in turn causes the first arc-shaped groove 507 to compress and deform the first elastic ball 506, causing it to move out of the first arc-shaped groove 507. When the first elastic ball 506 coincides with the second arc-shaped groove 508, the deformed first elastic ball 506 returns to its original position, thus locking into the second arc-shaped groove 508. At this point, the extension of the first cylinder 509 is stopped, thus completing the fixation of the limiting frame 503.

[0074] To fix the rotating shaft 501, the positioning assembly of the present invention includes two fixing posts 1202 fixed on one side of the positioning seat 301. The bottom of the fixing post 1202 is provided with a second mounting groove 1203. A second elastic ball 1204 is bonded in the second mounting groove 1203. A circular plate 1206 is welded to the bottom of the rotating shaft 501. The top of the circular plate 1206 is provided with two third arc-shaped grooves 1205, and the second elastic ball 1204 is located in the third arc-shaped groove 1205.

[0075] When the second elastic ball 1204 is located in the third arc-shaped groove 1205, the second elastic ball 1204 will assist in fixing the circular plate 1206, thereby fixing the rotating shaft 501, so that the limiting frame 503 can be accurately inserted into the placement slot 302; when the avoidance module 12 drives the rotating shaft 501 to rotate, the rotation of the rotating shaft 501 will drive the circular plate 1206 to rotate, thereby causing the third arc-shaped groove 1205 to squeeze and deform the second elastic ball 1204, thereby causing the second elastic ball 1204 to detach from the third arc-shaped groove 1205. When the rotating shaft 501 rotates 180°, the deformed second elastic ball 1204 can re-enter the third arc-shaped groove 1205, completing the fixation of the rotating shaft 501.

[0076] Both the first elastic ball 506 and the second elastic ball 1204 are made of elastic material, preferably elastic rubber.

[0077] In order to avoid the placement slot 302, the avoidance module 12 in this invention includes two fixed brackets 1207 fixed to the top of the frame 1. An arc-shaped rack 1208 is welded to one side of the fixed bracket 1207. A second gear 1201 is keyed to the outer circumference of the rotating shaft 501, and the second gear 1201 can mesh with the arc-shaped rack 1208.

[0078] During the rotation of the turntable 2, the turntable 2 drives the positioning seat 301 to rotate, thereby causing the second gear 1201 to mesh with the arc-shaped rack 1208, which in turn causes the second gear 1201 to drive the rotating shaft 501 to rotate, thereby causing the mounting frame 502 and the limiting frame 503 to rotate together. When the second gear 1201 disengages from the arc-shaped rack 1208, the second gear 1201 and the rotating shaft 501 rotate exactly 180°, so that the limiting frame 503 is located above or away from the placement groove 302. When the limiting frame 503 is away from the placement groove 302, the loading and unloading operations can be performed. When the limiting frame 503 is above the placement groove 302, the position transfer and limiting operation of the bearing body 11 can be performed, improving the smoothness of the device operation.

[0079] To enable the loading of a single end cap body 10, the end cap loading module 4 of this invention includes a first placement frame 401 fixed to the top of the frame 1. Multiple end cap bodies 10 can be placed inside the first placement frame 401. A first electric push rod 402 is bolted to one side of the first placement frame 401. A slide 403 is bolted to the movable end of the first electric push rod 402. Straight racks 404 are welded to both sides of the slide 403. C-shaped frames are rotatably connected to both sides of the first placement frame 401. 407, a first gear 406 is fixed to one side of the C-shaped frame 407 via a shaft, and the first gear 406 meshes with a straight rack 404. Both sides of the first placement frame 401 are provided with clearance openings 405, and both ends of the C-shaped frame 407 are located in the clearance openings 405. At the same time, the upper end of the C-shaped frame 407 in the initial position contacts the side of the combination of multiple end cap bodies 10, and the lower end of the C-shaped frame 407 contacts the lowest end cap body 10, thereby locking all the end cap bodies 10.

[0080] When it is necessary to unload the end cap body 10, the first electric push rod 402 is activated. The extension of the first electric push rod 402 will drive the slide 403 to move downward, thereby driving the straight rack 404 to move downward, which in turn drives the first gear 406 to rotate, thereby driving the C-shaped frame 407 to rotate. This causes the upper end of the C-shaped frame 407 to lock the second end cap body 10 below, thus preventing all the upper end cap bodies 10 from falling. At the same time, the lower end of the C-shaped frame 407 will disengage from the lowermost end cap body 10, thereby causing the lowermost end cap body 10 to fall off. This achieves the feeding of a single end cap body 10 and improves the feeding accuracy of the device.

[0081] To achieve individual loading of bearing bodies 11, the bearing loading module 6 in this invention includes a second placement frame 601 fixed to the top of the frame 1. Multiple bearing bodies 11 are placed into the second placement frame 601, with the bottommost bearing body 11 falling into the guide groove 604. A guide frame 602 is welded to the bottom of the second placement frame 601, and a guide groove 604 is opened on the top of the guide frame 602. A feed port 603 is opened at one end of the bottom inner wall of the guide groove 604. A second electric push rod 605 is fixed to the top of the guide frame 602 by bolts. A connecting plate 606 is fixed to the movable end of the second electric push rod 605 by bolts. An insertion hole 607 is opened at the bottom of the connecting plate 606. A push plate 608 is slidably connected in the guide groove 604. A sliding hole 610 is opened at the bottom of the push plate 608. A slider 609 is slidably connected in the sliding hole 610, and the top of the slider 609 can be inserted into the insertion hole 607. The end cap identification module 7 is used to control the up and down movement of the slider 609.

[0082] When the end cap recognition module 7 detects that there is an end cap body 10 in the placement slot 302, the end cap recognition module 7 pushes the slider 609 upward, so that the upper end of the slider 609 is inserted into the insertion hole 607, and the second electric push rod 605 is activated. The retraction of the second electric push rod 605 will drive the connecting plate 606 to move. Since the slider 609 is inserted into the insertion hole 607, the movement of the connecting plate 606 will drive the push plate 608 to move, thereby pushing the bottom bearing body 11 to the feed port 603, so that the bearing body 11 falls from the feed port 603 into the limiting hole 504, thereby completing the single feeding of the bearing body 11 and improving the accuracy of the bearing body 11 feeding.

[0083] When the end cap recognition module 7 does not detect that there is an end cap body 10 in the placement slot 302, the end cap recognition module 7 will not push the slider 609 to move upward, so that there is no connection between the connecting plate 606 and the push plate 608, and even if the second electric push rod 605 is started, it cannot drive the push plate 608 to move.

[0084] In order to identify whether there is an end cap body 10 in the placement slot 302, the end cap identification module 7 of the present invention includes a sliding opening 706 at the bottom of the guide frame 602, a connecting frame 704 slidably connected in the sliding opening 706, and one end of the slider 609 is inserted into the sliding opening 706 and contacts the top of the connecting frame 704. A ball 705 rolls at the bottom of the connecting frame 704. A force arm 701 is rotatably connected to the bottom of the placement plate 303. One end of the force arm 701 is rotatably connected to a sliding plate 702 that passes through the positioning seat 301 and is slidably connected to the positioning seat 301. A frustum 703 is welded to one end of the sliding plate 702, and the frustum 703 can contact the ball 705.

[0085] When the end cap body 10 is in the placement slot 302, the downward movement of the limiting frame 503 will push the end cap body 10 and the placement plate 303 downward, thereby squeezing one end of the lever arm 701, causing the lever arm 701 to rotate, and then pushing the slide plate 702 to slide on the positioning seat 301, thereby causing the truncated cone 703 to move towards the center of the turntable 2. During the process of the turntable 2 driving the positioning seat 301 to move to the bearing loading module 6 station, the truncated cone 703, which is driven to rotate by the turntable 2, will contact the ball 705, and the inclined surface of the truncated cone 703 will squeeze the ball 705, thereby causing the connecting frame 704 to move upward in the sliding mouth 706, and then the connecting frame 704 will push the slider 609 to move upward, causing the slider 609 to disengage from the sliding mouth 706. At this time, the bottom of the slider 609 is flush with the bottom of the sliding hole 610, thereby allowing the push plate 608 to be driven to slide by the connecting plate 606.

[0086] When there is no end cap body 10 in the placement groove 302, the limiting frame 503 moves downward and does not contact the placement plate 303, thus preventing the placement plate 303 from moving downward. Consequently, the frustum 703 will not move. During the process of the turntable 2 changing positions, the frustum 703 will not contact the ball 705, so one end of the slider 609 will always be in the sliding opening 706. Thus, when the second electric push rod 605 retracts, it cannot drive the push plate 608 to move, thereby preventing the bearing body 11 from being fed. This avoids the situation where the bearing body 11 is still being fed when there is no end cap body 10 in the placement groove 302, thus avoiding the situation where the bearing body 11 falls into the placement groove 302 and needs to be removed, further improving the accuracy of the bearing body 11 feeding.

[0087] In order to press-fit the bearing body 11 and the end cover body 10, the press-fit module 8 in this invention includes a second cylinder 801 fixed to the top of the frame 1. The movable end of the second cylinder 801 is fixed with a second pressure plate 802 by bolts. The diameter of the second pressure plate 802 is the same as the diameter of the bearing body 11.

[0088] When the second cylinder 801 is activated, its extension causes the second pressure plate 802 to move downwards, thus allowing the second pressure plate 802 to enter the limiting hole 504 and contact the bearing body 11. The second cylinder 801 continues to extend, causing the second pressure plate 802 to press against the inner and outer rings of the bearing body 11 and move simultaneously into the bearing mounting groove of the end cover body 10, thereby completing the press-fitting of the bearing body 11 and the end cover body 10.

[0089] In order to continue to reset the limit frame 503 and make it easy to remove the end cap after pressing, the reset module 9 in this invention includes a third cylinder 901 fixed to the top of the frame 1. The movable end of the third cylinder 901 is fixed with an inner plate 902 by bolts. The outer circumferential wall of the inner plate 902 is provided with a plurality of clearance grooves 903. The bottom inner wall of the clearance grooves 903 is welded with an arc-shaped elastic plate 904. The sum of the elastic force of the plurality of arc-shaped elastic plates 904 is much greater than the sum of the elastic force of the plurality of first elastic balls 506. The arc-shaped elastic plates 904 are made of elastic material, preferably elastic steel.

[0090] When the third cylinder 901 is activated, its extension causes the inner plate 902 to move into the limiting hole 504. The limiting frame 503 then compresses the arc-shaped elastic plate 904, causing it to deform and generate elastic force. This causes the arc-shaped elastic plate 904 to press against the limiting frame 503, thus providing auxiliary fixation between the inner plate 902 and the limiting frame 503. When the third cylinder 901 retracts, it causes the inner plate 902 to move upward, which in turn causes the limiting frame 503 to move upward. At this time, the compressed spring 304 resets and pushes the placement plate 303 and the press-fitted end cap upward together, causing the press-fitted end cap to extend beyond the placement groove 302 by a portion. This facilitates the removal of the press-fitted end cap and improves the ease of removal.

[0091] When the first elastic ball 506 is located in the first arc-shaped groove 507, the continued contraction of the third cylinder 901 will drive the inner plate 902 to continue moving upward. Since the limiting frame 503 is limited by the mounting frame 502, the inner plate 902 will not drive the limiting frame 503 to move upward during the continued contraction of the third cylinder 901. This causes the limiting frame 503 to disengage from the arc-shaped elastic plate 904 on the inner plate 902, allowing the limiting frame 503 to return to its initial position and be driven to rotate by the avoidance module 12, further improving the convenience of removing the end cap.

[0092] It should be noted that the turntable 2, the first electric push rod 402, the second electric push rod 605, the first cylinder 509, the second cylinder 801 and the third cylinder 901 in this invention are all components known to general electrical appliances or those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods, and will not be described in detail here.

[0093] The present invention is used in the following steps:

[0094] S1: First, place multiple end cap bodies 10 into the first placement frame 401, and place multiple bearing bodies 11 into the second placement frame 601.

[0095] S2: Activate the first electric push rod 402. The extension of the first electric push rod 402 will drive the slide 403 to move downward, thereby driving the straight rack 404 to move downward, which in turn drives the first gear 406 to rotate, thereby driving the C-shaped frame 407 to rotate, so that the upper end of the C-shaped frame 407 will lock the lower second end cap body 10, thereby preventing all the upper end cap bodies 10 from falling down. At the same time, the lower end of the C-shaped frame 407 will disengage from the lowermost end cap body 10, thereby causing the lowermost end cap body 10 to fall off and fall into the placement groove 302.

[0096] S3: Start the turntable 2. The turntable 2 drives the positioning seat 301 and the end cover body 10 to move and rotate, thereby moving the positioning seat 301 and the end cover body 10 to the work position of the transfer limiting module 5.

[0097] S4: During the process of the positioning seat 301 and the end cover body 10 moving to the transfer limiting module 5, the second gear 1201 will mesh with the arc rack 1208, which will cause the second gear 1201 to drive the rotating shaft 501 to rotate, thereby driving the mounting frame 502 and the limiting frame 503 to rotate together. When the second gear 1201 disengages from the arc rack 1208, the second gear 1201 and the rotating shaft 501 will rotate exactly 180°, so that the limiting frame 503 is just above the placement groove 302.

[0098] S5: Start the first cylinder 509. The extension of the first cylinder 509 will drive the first pressure plate 510 to move downward, so that the first pressure plate 510 contacts the limit frame 503. The first cylinder 509 continues to extend, and the first pressure plate 510 will push the end cover body 10 and the placement plate 303 to move downward, and squeeze the spring 304 to contract and generate elastic force until the first elastic ball 506 is located in the second arc-shaped groove 508.

[0099] S6: The downward movement of the placement plate 303 will press one end of the lever arm 701, causing the lever arm 701 to rotate, which in turn pushes the slide plate 702 to slide on the positioning seat 301, thereby causing the truncated cone 703 to move towards the center of the turntable 2.

[0100] S7: Start the turntable 2. The turntable 2 drives the positioning seat 301 and the end cover body 10 to move and rotate, thereby moving the positioning seat 301 and the end cover body 10 to the work position of the bearing loading module 6.

[0101] S8: During the process of the positioning seat 301 and the end cover body 10 moving to the bearing loading module 6 station, the rotating truncated cone 703 driven by the turntable 2 makes the truncated cone 703 contact the ball 705, and the inclined surface of the truncated cone 703 squeezes the ball 705, thereby causing the connecting frame 704 to move upward in the sliding hole 706, and then the connecting frame 704 pushes the slider 609 to move upward, so that the bottom of the slider 609 is separated from the sliding hole 706, and the top of the slider 609 enters the insertion hole 607. At this time, the bottom of the slider 609 is flush with the bottom of the sliding hole 610.

[0102] S9: Start the second electric push rod 605. The retraction of the second electric push rod 605 will drive the connecting plate 606 to move. Since the slider 609 is inserted into the insertion hole 607, the movement of the connecting plate 606 will drive the push plate 608 to move, thereby pushing the bottom bearing body 11 to the feed port 603, so that the bearing body 11 falls from the feed port 603 into the limiting hole 504.

[0103] S10: Start the turntable 2. The turntable 2 drives the positioning seat 301 and the end cover body 10 to move and rotate, thereby moving the positioning seat 301 and the end cover body 10 to the station of the press-fit module 8.

[0104] S11: Start the second cylinder 801. The extension of the second cylinder 801 will drive the second pressure plate 802 to move downward, so that the second pressure plate 802 enters the limiting hole 504 and contacts the bearing body 11. The second cylinder 801 continues to extend, so that the second pressure plate 802 presses the inner ring and outer ring of the bearing body 11 and moves into the bearing mounting groove of the end cover body 10 at the same time, thereby completing the press-fitting of the bearing body 11 and the end cover body 10.

[0105] S12: Start the turntable 2. The turntable 2 drives the positioning seat 301 and the end cover body 10 to move and rotate, thereby moving the positioning seat 301 and the end cover body 10 to the station of the reset module 9.

[0106] S13: Start the third cylinder 901. The extension of the third cylinder 901 will drive the inner plate 902 to move into the limiting hole 504. The limiting frame 503 will squeeze the arc-shaped elastic plate 904 to deform and generate elastic force, so that the arc-shaped elastic plate 904 squeezes the limiting frame 503, thereby providing auxiliary fixation between the inner plate 902 and the limiting frame 503.

[0107] S14: The third cylinder 901 is activated to retract. The third cylinder 901 will drive the inner plate 902 to move upward, thereby driving the limiting frame 503 to move upward. When the first elastic ball 506 is located in the first arc-shaped groove 507, the third cylinder 901 continues to retract and will drive the inner plate 902 to continue to move upward. Since the limiting frame 503 is limited by the mounting frame 502, the inner plate 902 will not drive the limiting frame 503 to move upward during the process of the third cylinder 901 continuing to retract. This will cause the limiting frame 503 to disengage from the arc-shaped elastic plate 904 on the inner plate 902, and the limiting frame 503 will return to its initial position.

[0108] S15: During the upward movement of the limit frame 503, the compressed spring 304 resets and pushes the placement plate 303 and the pressed end cap upward together, so that the pressed end cap extends beyond the placement groove 302 by a part, thereby making it easier to remove the pressed end cap.

[0109] S16: Start the turntable 2. The turntable 2 drives the positioning seat 301 and the end cover body 10 to move and rotate, thereby moving the positioning seat 301 and the end cover body 10 to the end cover material picking station.

[0110] S17: During the process of the positioning seat 301 and the end cover body 10 moving to the end cover picking station, the second gear 1201 will also mesh with the arc rack 1208, thereby causing the second gear 1201 to drive the rotating shaft 501 to rotate, thereby causing the mounting frame 502 and the limiting frame 503 to rotate together. When the second gear 1201 disengages from the arc rack 1208, the second gear 1201 and the rotating shaft 501 rotate exactly 180°, thereby causing the limiting frame 503 to move away from the placement groove 302, thus making the top of the placement groove 302 unobstructed.

[0111] S18: After the press-fitted end cap enters the end cap picking station, the press-fitted end cap can be taken out, so that the next assembly operation can be carried out. The entire press-fitting process can realize the bearing transfer limit, the end cap identification, and the automatic avoidance of the transfer limit, thereby improving the smoothness of the device operation and the processing efficiency of bearing end cap press-fitting.

[0112] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A motor end cap and bearing press-fitting device, comprising multiple end cap bodies (10), bearing bodies (11), and a frame (1), characterized in that, The bottom of the frame (1) is provided with a turntable (2). The rotating part of the turntable (2) is provided with multiple positioning modules (3) for positioning the end cap body (10). The multiple positioning modules (3) rotate to form multiple workstations. One side of the positioning module (3) is provided with a transfer limiting module (5) for limiting the bearing body (11) when the bearing body (11) changes workstations. The top of the frame (1) is provided with an end cap loading module (4) for holding and unloading a single end cap body (10). The rear end of the end cap loading module (4) is provided with a mechanism for the transfer limiting module (5) to... The rear end of the avoidance module (12) is provided with a bearing loading module (6) for holding and individually unloading the bearing body (11). On one side of the bearing loading module (6) is an end cap identification module (7) for detecting whether the end cap body (10) inside the positioning module (3) is present. The rear end of the bearing loading module (6) is provided with a pressing module (8) for pressing the bearing body (11) and the end cap body (10). The rear end of the pressing module (8) is provided with a reset module (9) for ejecting the end cap body (10). The positioning module (3) includes a positioning seat (301) fixed on the turntable (2). The top of the positioning seat (301) is provided with a placement groove (302) for placement and limiting. A placement plate (303) is slidably connected to the inner circumference of the placement groove (302). Multiple springs (304) are fixedly connected between the placement plate (303) and the placement groove (302). The transfer limiting module (5) includes a rotating shaft (501) that rotates on one side of the positioning seat (301). A mounting bracket (502) is fixedly connected to the top of the rotating shaft (501). A limiting bracket (503) is slidably connected to the inner circumferential wall of the mounting bracket (502). A limiting hole (504) is opened at the center of the limiting bracket (503), and the diameter of the limiting hole (504) is larger than the diameter of the bearing body (11). A plurality of first arc-shaped grooves (507) and second arc-shaped grooves (508) are respectively opened on the outer circumferential wall of the limiting bracket (503), and the first arc-shaped grooves (507) are located in the second arc-shaped grooves (508). Below, the outer circumferential wall of the mounting bracket (502) is provided with a plurality of first mounting grooves (505). A first elastic ball (506) that can be inserted into a first arc-shaped groove (507) or a second arc-shaped groove (508) is bonded in the first mounting groove (505). The total elastic force of the plurality of first elastic balls (506) is greater than the total elastic force of the plurality of springs (304). A first cylinder (509) is fixedly connected to the top of the frame (1). A first pressure plate (510) is fixedly connected to the movable end of the first cylinder (509). A positioning component for auxiliary limiting of the rotating shaft (501) is provided on one side of the positioning seat (301). The avoidance module (12) includes two fixed brackets (1207) fixed on the top of the frame (1). An arc-shaped rack (1208) is fixedly connected to one side of the fixed bracket (1207). A second gear (1201) is keyed to the outer circumference of the rotating shaft (501), and the second gear (1201) can mesh with the arc-shaped rack (1208).

2. The motor end cover and bearing press-fitting equipment according to claim 1, characterized in that, The positioning assembly includes two fixed posts (1202) fixed on one side of the positioning seat (301). The bottom of the fixed post (1202) is provided with a second mounting groove (1203). A second elastic ball (1204) is bonded in the second mounting groove (1203). The bottom of the rotating shaft (501) is fixedly connected to a circular plate (1206). The top of the circular plate (1206) is provided with two third arc-shaped grooves (1205), and the second elastic ball (1204) is located in the third arc-shaped groove (1205).

3. The motor end cover and bearing press-fitting equipment according to claim 1, characterized in that, The end cap loading module (4) includes a first placement frame (401) fixed to the top of the frame (1). A first electric push rod (402) is fixedly connected to one side of the first placement frame (401). A slide (403) is fixedly connected to the movable end of the first electric push rod (402). A straight rack (404) is fixedly connected to both sides of the slide (403). A U-shaped frame (407) is rotatably connected to both sides of the first placement frame (401). A first gear (406) is fixed to one side of the U-shaped frame (407) through a shaft. The first gear (406) meshes with the straight rack (404). A clearance opening (405) is opened on both sides of the first placement frame (401). Both ends of the U-shaped frame (407) are located in the clearance opening (405).

4. The motor end cover and bearing press-fitting equipment according to claim 1, characterized in that, The bearing loading module (6) includes a second placement frame (601) fixed to the top of the frame (1). A guide frame (602) is fixedly connected to the bottom of the second placement frame (601). A guide groove (604) is opened on the top of the guide frame (602). A material outlet (603) is opened at one end of the bottom inner wall of the guide groove (604). A second electric push rod (605) is fixedly connected to the top of the guide frame (602). A connecting plate (606) is fixedly connected to the movable end of the second electric push rod (605). An insertion hole (607) is opened at the bottom of the connecting plate (606). A push plate (608) is slidably connected in the guide groove (604). A sliding hole (610) is opened at the bottom of the push plate (608). A slider (609) is slidably connected in the sliding hole (610). The top of the slider (609) can be inserted into the insertion hole (607). The end cap identification module (7) is used to control the up and down movement of the slider (609).

5. The motor end cover and bearing press-fitting equipment according to claim 4, characterized in that, The end cap identification module (7) includes a sliding opening (706) at the bottom of the guide frame (602), a connecting frame (704) is slidably connected in the sliding opening (706), and one end of the slider (609) is inserted into the sliding opening (706) and contacts the top of the connecting frame (704). A ball (705) rolls at the bottom of the connecting frame (704). A lever (701) is rotatably connected to the bottom of the placement plate (303). One end of the lever (701) is rotatably connected to a sliding plate (702) that passes through the positioning seat (301) and is slidably connected to the positioning seat (301). One end of the sliding plate (702) is fixedly connected to a frustum (703), and the frustum (703) can contact the ball (705).

6. The motor end cover and bearing press-fitting equipment according to claim 1, characterized in that, The pressing module (8) includes a second cylinder (801) fixed to the top of the frame (1), and a second pressure plate (802) is fixedly connected to the movable end of the second cylinder (801). The reset module (9) includes a third cylinder (901) fixed to the top of the frame (1), and an inner plate (902) is fixedly connected to the movable end of the third cylinder (901). Multiple clearance grooves (903) are opened on the outer circumference of the inner plate (902), and an arc-shaped elastic plate (904) is fixedly connected to the bottom inner wall of the clearance groove (903).

7. A method for press-fitting a motor end cover and a bearing, applicable to the press-fitting equipment for a motor end cover and a bearing as described in claim 1, characterized in that, Includes the following steps: Step 1: First, place multiple end cap bodies (10) into the end cap loading module (4), and place multiple bearing bodies (11) into the bearing loading module (6); Step 2: The end cap body (10) is transported to the positioning module (3) through the end cap feeding module (4), and then the turntable (2) is started. The turntable (2) drives the positioning module (3) to rotate and change the station. During the station change process, the transfer limiting module (5) is moved to the top of the end cap body (10) through the avoidance module (12). Step 3: Use the transfer limiting module (5) to press down on the end cap body (10), thereby activating the end cap recognition module (7), and continue to start the turntable (2). The turntable (2) drives the positioning module (3) to rotate and change the work position. Step 4: After the end cap recognition module (7) is activated, the bearing loading module (6) can transport a single bearing body (11) into the transfer limiting module (5) and make contact with the end cap body (10). Then, the turntable (2) is started, and the turntable (2) drives the positioning module (3) to rotate and change the work position. Step 5: Start the press-fit module (8). The press-fit module (8) presses the bearing body (11) into the end cover body (10) by interference fit, thereby completing the press-fit of the bearing body (11). Then start the turntable (2). The turntable (2) drives the positioning module (3) to rotate and change the work position. Step 6: Reset the transfer limit module (5) by resetting the reset module (9), so that the transfer limit module (5) can rotate, start the turntable (2), and the turntable (2) drives the positioning module (3) to rotate and change the work position; Step 7: During the process of the positioning module (3) moving from the reset module (9) station to the unloading station, the avoidance module (12) will move the transfer limit module (5) away from the top of the positioning module (3).

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