An automatic assembly machine for wheel hub bearings of new energy vehicles

Abstract

This invention relates to the field of new energy vehicle technology and discloses an automatic assembly machine for new energy vehicle wheel hub bearings. The machine includes a base, with an assembly cabinet fixedly mounted on the top of the base. Multiple rotating rings of different diameters and at the same height are rotatably connected to the top of the inner wall of the assembly cabinet. Adjacent rotating rings are rotatably connected. Each rotating ring has a bevel gear ring fixed to its top. All bevel gear rings are driven by two sets of drive components. Each drive component includes a drive motor fixedly connected to the outer wall of the assembly cabinet, and a rotating shaft is fixed to the output shaft of the drive motor. This invention, through the cooperation of the drive components, rotating rings, and positioning components, enables the device to adapt to the positioning of different types of wheel hub flanges, and also to the fixing of wheel hub flanges of the same type but different sizes. This invention improves assembly accuracy and efficiency by positioning and fixing the wheel hub flanges.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, specifically to an automatic assembly machine for wheel hub bearings in new energy vehicles. Background Technology

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as a power source or use conventional vehicle fuels and adopt new on-board power devices, integrating vehicle power control and drive. New energy vehicles are technologically advanced and have new technologies and structures. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. Automated assembly machines are required in the installation of wheel hub bearings in new energy vehicles.

[0003] Although the existing technology meets the user's needs to a certain extent, there are still some defects in the use process. The specific problems are as follows: it is inconvenient to fix and clamp the wheel hub during the processing of the automatic assembly machine, which makes it easy to cause displacement during the assembly of the bearing, affecting the assembly quality. In addition, the processing table is exposed and is prone to dust accumulation, which makes it inconvenient for people to use.

[0004] To address the aforementioned issues, we have made improvements and proposed an automatic assembly machine for wheel hub bearings in new energy vehicles. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic assembly machine for wheel hub bearings of new energy vehicles, including a base, an assembly cabinet fixedly installed on the top of the base, a plurality of rotating rings of the same height, coaxiality and different diameters rotatably connected to the top of the inner wall of the assembly cabinet, and adjacent rotating rings rotatably connected to each other, a bevel gear ring fixed to the top of each rotating ring, all the bevel gear rings being driven by two sets of drive components, the drive components including a drive motor fixedly connected to the outer wall of the assembly cabinet, a rotating shaft fixed on the output shaft of the drive motor, a plurality of bevel gears arranged in a linear array and meshing with the bevel gear rings rotatably connected to the circumferential side wall of the rotating shaft, the inner side wall of the bevel gears being fixedly connected to the circumferential side wall of the rotating shaft by a locking component, the locking component including insertion holes arranged in a circumferential array on the circumferential side wall of the rotating shaft, an electromagnetic pin provided on the inner side wall of the bevel gears and cooperating with the insertion holes, and a positioning component provided at the bottom of each rotating ring.

[0006] As a preferred technical solution of the present invention, the positioning component includes a rotary motor fixedly connected to the bottom of the rotating ring, a first hydraulic telescopic rod fixedly on the output shaft of the rotary motor, an angle adjustment motor fixedly on the telescopic end of the first hydraulic telescopic rod, a rotating motor fixedly on the output shaft of the angle adjustment motor, a second hydraulic telescopic rod fixedly on the output shaft of the rotating motor, and a conical positioning rod vertically fixedly on the telescopic end of the second hydraulic telescopic rod.

[0007] As a preferred technical solution of the present invention, a bearing assembly mechanism is provided on the top of the assembly cabinet. The bearing assembly mechanism includes a hydraulic cylinder, which is fixedly installed on the top of the assembly cabinet. The telescopic end of the hydraulic cylinder passes through the top of the assembly cabinet. The left and right sides of the telescopic end of the hydraulic cylinder are rotatably connected to connecting rods driven by stepper motors. A first electric telescopic rod is fixed to the end of the connecting rod away from the stepper motor. A second electric telescopic rod is fixed to the end of the first electric telescopic rod away from the hydraulic cylinder. A vacuum suction cup is fixed to the telescopic end of the second electric telescopic rod.

[0008] As a preferred technical solution of the present invention, a dust collection mechanism is provided at the middle of the left side of the assembly cabinet. The dust collection mechanism includes a dust collection box, a mounting bracket, a fan, a filter, a dust collection pipe, a pneumatic telescopic rod, a horn tube, and a fixing sleeve. The dust collection box is fixedly connected to the middle of the left side of the assembly cabinet. The fan is fixedly connected to the left side of the inner cavity of the dust collection box. The mounting bracket is fixedly connected to the upper and lower sides of the inner cavity of the dust collection box. The filter is clipped to the inner side of the mounting bracket. The dust collection pipe is connected to the right side of the dust collection box, and the horn tube is connected to the right side of the dust collection pipe.

[0009] As a preferred technical solution of the present invention, a clamping mechanism is provided at the bottom of the left side of the assembly cabinet. The clamping mechanism includes a servo motor, a slide rod, a sliding groove, a positive and negative threaded rod, a threaded sleeve, a fixing rod, and a clamping plate. The servo motor is fixedly connected to the bottom of the left side of the assembly cabinet, the positive and negative threaded rod is fixedly connected to the output end of the servo motor, the threaded sleeve is threadedly connected to the left and right sides of the outer surface of the positive and negative threaded rod, the fixing rod is fixedly connected to the top of the threaded sleeve, and the clamping plate is fixedly connected to the inner side of the fixing rod.

[0010] As a preferred technical solution of the present invention, a feeding cylinder is fixedly connected to the back side of the assembly cabinet, a feeding plate is fixedly connected to the front side of the feeding cylinder, a hydraulic telescopic support platform is provided at the bottom of the assembly cabinet, and a top block is provided at the top of the hydraulic telescopic support platform.

[0011] As a preferred embodiment of the present invention, the fixing sleeve is fitted onto the outer surface of the vacuum tube, the pneumatic telescopic rod is fixedly connected to the top of the fixing sleeve, and the end of the pneumatic telescopic rod away from the fixing sleeve is fixedly installed on the left side of the assembly cabinet cavity; the front side of the vacuuming mechanism is movably connected to a door via a hinge, and a handle is fixedly connected to the front side of the door.

[0012] As a preferred embodiment of the present invention, the front side of the assembly cabinet is movably connected to a cabinet door via a hinge, and an observation window is embedded in the front side of the cabinet door.

[0013] As a preferred embodiment of the present invention, the base is fixedly connected to support legs on all four sides, and the bottom of the support legs is provided with rubber anti-slip pads.

[0014] As a preferred technical solution of the present invention, a protective cover is provided on the left side of the assembly cabinet and outside the servo motor, and the inner surface of the protective cover is connected to the surface of the assembly cabinet by bolts and threads. The sliding groove is opened on the left and right sides of the bottom of the inner cavity of the assembly cabinet, the sliding rod is fixedly connected to the bottom of the threaded sleeve, and the bottom of the sliding rod is slidably connected to the inner cavity of the sliding groove.

[0015] Compared with the prior art, the present invention provides an automatic assembly machine for wheel hub bearings of new energy vehicles, which has the following beneficial effects:

[0016] 1. This automatic wheel hub bearing assembly machine, through the setting of a clamping mechanism, can clamp the wheel hub flange during assembly, preventing the wheel hub flange from moving during the assembly process and affecting the assembly quality of the bearing. Through the setting of a feeding cylinder and a feeding plate, the assembled wheel hub flange can be pushed out for easy handling, achieving the function of automatic material discharge. Through the setting of a dust collection mechanism, it can remove dust, keep the inner cavity of the assembly cabinet clean, and prevent dust accumulation.

[0017] 2. This automatic wheel hub bearing assembly machine can limit the suction pipe by setting a fixed sleeve and a pneumatic telescopic rod to prevent the suction pipe from falling off. The door allows people to easily remove the filter screen for cleaning or replacement. The sliding rod and sliding groove can improve the stability of the threaded sleeve during movement.

[0018] 3. This invention, through the cooperation between the drive assembly, the rotating ring, and the positioning assembly, enables the device to adapt to the positioning of different types of wheel hub flanges, and also enables the device to fix wheel hub flanges of the same type but different sizes; this invention improves assembly accuracy and assembly efficiency by positioning and fixing the wheel hub flanges.

[0019] 4. The present invention enables the device to simulate the picking and placing of the clasp by the cooperation between the driving component, the rotating ring and the positioning component.

[0020] 5. The present invention, through the cooperation between the drive component, the rotating ring and the positioning component, causes the sealing ring to rotate and scrape the lubricating oil on the bearing and the hub flange, so that the lubricating oil is evenly distributed and the excess is applied to the areas where the lubricating oil is insufficient, thereby avoiding the occurrence of excessive lubricating oil overflow. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic cross-sectional view of the present invention;

[0024] Figure 3 This is a schematic planar sectional view of the present invention;

[0025] Figure 4 This is a schematic diagram of the filter structure of the present invention;

[0026] Figure 5 This is a schematic diagram showing the structural connections of the assembly cabinet, drive assembly, rotating ring, and positioning assembly of the present invention;

[0027] Figure 6 This is a schematic diagram showing the structural connections of the driving component, rotating ring, and positioning component of the present invention;

[0028] Figure 7 This is a bottom view of the drive component, rotating ring, and positioning component of the present invention;

[0029] Figure 8 This is a schematic diagram of the positioning component structure connection of the present invention;

[0030] Figure 9 This is a schematic diagram showing the misalignment between the sealing ring and the bearing in this invention;

[0031] Figure 10 This is a schematic diagram of the two conical positioning rods clamping the sealing ring according to the present invention.

[0032] The components include: 1. Base; 2. Protective cover; 3. Cabinet door; 4. Dust collection mechanism; 401. Dust collection box; 402. Card holder; 403. Fan; 404. Filter screen; 405. Dust collection pipe; 406. Pneumatic telescopic rod; 407. Horn tube; 408. Fixing sleeve; 5. Assembly cabinet; 6. Bearing assembly mechanism; 601. Hydraulic cylinder; 602. First electric telescopic rod; 603. Connecting rod; 604. Second electric telescopic rod; 7. Cabinet door; 8. Observation window; 9. Support leg; 10. Rubber anti-slip pad; 11. Clamping mechanism; 1101. Servo motor; 1102. Slide rod; 1103. Sliding groove. ; 1104, Threaded rod (positive and negative); 1105, Threaded sleeve; 1106, Fixed rod; 1107, Clamping plate; 12, Hydraulic telescopic support platform; 13, Top block; 14, Feeding plate; 15, Hub flange; 16, Sealing ring; 17, Feeding cylinder; 18, Drive assembly; 1801, Drive motor; 1802, Rotating shaft; 1803, Bevel gear; 19, Rotating ring; 20, Positioning assembly; 2001, Rotary motor; 2002, First hydraulic telescopic rod; 2003, Angle adjustment motor; 2004, Rotating motor; 2005, Second hydraulic telescopic rod; 2006, Conical positioning rod. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figure 1-4 This invention provides an automatic assembly machine for wheel hub bearings of new energy vehicles, including a base 1. An assembly cabinet 5 is fixedly installed on the top of the base 1. A bearing assembly mechanism 6 is provided on the top of the assembly cabinet 5. The bearing assembly mechanism 6 includes a hydraulic cylinder 601, which is fixedly installed on the top of the assembly cabinet 5. The telescopic end of the hydraulic cylinder 601 passes through the top of the assembly cabinet 5. The left and right sides of the telescopic end of the hydraulic cylinder 601 are rotatably connected to a connecting rod 603 driven by a stepper motor. A first electric telescopic rod 602 is fixed to the end of the connecting rod 603 away from the stepper motor. A second electric telescopic rod 604 is fixed to the end of the first electric telescopic rod 602 away from the hydraulic cylinder 601. A vacuum suction cup is fixed to the telescopic end of the second electric telescopic rod 604.

[0036] A dust collection mechanism 4 is installed in the middle of the left side of the assembly cabinet 5. The dust collection mechanism 4 includes a dust collection box 401, a mounting base 402, a fan 403, a filter 404, a dust collection pipe 405, a pneumatic telescopic rod 406, a horn pipe 407, and a fixing sleeve 408. The dust collection box 401 is fixedly connected to the middle of the left side of the assembly cabinet 5. The fan 403 is fixedly connected to the left side of the inner cavity of the dust collection box 401. The mounting base 402 is fixedly connected to the upper and lower sides of the inner cavity of the dust collection box 401. The filter 404 is clipped into the inner side of the mounting base 402. The dust collection pipe 405 is connected to the right side of the dust collection box 401. The horn pipe 407 is connected to the right side of the dust collection pipe 405.

[0037] A clamping mechanism 11 is provided at the bottom left side of the assembly cabinet 5. The clamping mechanism 11 includes a servo motor 1101, a slide rod 1102, a sliding groove 1103, a threaded rod 1104, a threaded sleeve 1105, a fixing rod 1106, and a clamping plate 1107. The servo motor 1101 is fixedly connected to the bottom left side of the assembly cabinet 5, the threaded rod 1104 is fixedly connected to the output end of the servo motor 1101, and the threaded sleeve 1105 is threadedly connected to the outer surface of the threaded rod 1104. On the left and right sides, the fixing rod 1106 is fixedly connected to the top of the threaded sleeve 1105, and the clamping plate 1107 is fixedly connected to the inner side of the fixing rod 1106. The back side of the assembly cabinet 5 is fixedly connected to the feeding cylinder 17, and the front side of the feeding cylinder 17 is fixedly connected to the feeding plate 14. The bottom of the assembly cabinet 5 is provided with a hydraulic telescopic support platform 12, and the top of the hydraulic telescopic support platform 12 is provided with a top block 13. The top of the top block 13 is used to place the hub flange 15, and the hub flange 15 is provided with a bearing and a sealing ring 16.

[0038] The fixing sleeve 408 is fitted onto the outer surface of the suction pipe 405, the pneumatic telescopic rod 406 is fixedly connected to the top of the fixing sleeve 408, and the end of the pneumatic telescopic rod 406 away from the fixing sleeve 408 is fixedly installed on the left side of the inner cavity of the assembly cabinet 5.

[0039] By using the above technical solution, the vacuum cleaner 405 can be limited by setting the fixing sleeve 408 and the pneumatic telescopic rod 406, thus preventing the vacuum cleaner 405 from falling off.

[0040] The front of the vacuuming mechanism 4 is movably connected to the door 3 via a hinge, and the front of the door 3 is fixedly connected to a handle.

[0041] With the above technical solution, by setting the door 3, people can easily take out the filter 404 for cleaning or replacement.

[0042] The front of the assembly cabinet 5 is connected to the cabinet door 7 via a hinge, and the front of the cabinet door 7 is fitted with an observation window 8.

[0043] The above technical solution, by setting up observation window 8, allows people to conveniently observe the assembly process.

[0044] Support legs 9 are fixedly connected to all four sides of the bottom of the base 1, and rubber anti-slip pads 10 are provided on the bottom of the support legs 9.

[0045] By using the above technical solution and setting the rubber anti-slip pad 10, an anti-slip effect can be achieved, thereby improving the overall stability.

[0046] A protective cover 2 is provided on the left side of the assembly cabinet 5 and outside the servo motor 1101, and the inner surface of the protective cover 2 is connected to the surface of the assembly cabinet 5 by bolts and threads.

[0047] The servo motor 1101 can be protected by setting up a protective cover 2, as described above.

[0048] The sliding groove 1103 is provided on the left and right sides of the bottom of the inner cavity of the assembly cabinet 5. The slide rod 1102 is fixedly connected to the bottom of the threaded sleeve 1105, and the bottom of the slide rod 1102 is slidably connected to the inner cavity of the sliding groove 1103.

[0049] The present invention improves the stability of the threaded sleeve 1105 during movement by setting the slide bar 1102 and the sliding groove 1103.

[0050] In use, first open cabinet door 7, control the feeding cylinder 17 to extend from cabinet door 7, place the hub flange 15 to be assembled on top of feeding plate 14, then control the feeding cylinder 17 to retract, causing feeding plate 14 to move to the top of top block 13 on top of hydraulic telescopic support platform 12. The output end of servo motor 1101 drives the positive and negative thread rod 1104 to rotate. The positive and negative thread rod 1104 drives threaded sleeve 1105 to move inward through the thread action. Threaded sleeve 1105 drives clamping plate 1107 to move inward through fixing rod 1106 to clamp hub flange 15, preventing hub flange 15 from shifting during assembly and affecting bearing assembly quality. Subsequently, place the bearing to be assembled at the bottom of bearing assembly mechanism 6, and drive vacuum suction cup outward through second electric telescopic rod 604. The bearing is fixed by a vacuum suction cup after lateral movement. Then, the first electric telescopic rod 602 is extended to place the bearing into the hub flange 15. The stepper motor is then started, which drives the second electric telescopic rod 604 to rotate to both sides to avoid obstruction. The hydraulic cylinder 601 moves downward to press the bearing into the hub flange 15. After assembly, the feeding cylinder 17 extends to move the feeding plate 14 forward. At this time, the feeding plate 14 leaves the inner cavity of the assembly cabinet 5, making it easy for people to pick up the assembled hub flange 15. When it is necessary to remove dust from the inner cavity of the assembly cabinet 5, the input end of the fan 403 generates suction, and the dust in the inner cavity of the assembly cabinet 5 is sucked into the inner cavity of the dust collection box 401 through the dust collection pipe 405 and the horn pipe 407, thus achieving the effect of dust removal.

[0051] Example 2

[0052] Based on the previous embodiment, although the above-mentioned device can complete automatic assembly, when assembling the bearing and the hub flange 15, the surfaces in contact with the bearing and the hub flange 15 often need to be coated with lubricating oil. Because the bearing is coated with lubricating oil, when the bearing is placed in the hub flange 15, the end of the hub flange 15 is covered with the lubricating oil, especially for tapered roller bearings, which are more likely to have lubricating oil stuck to one side of the hub flange 15 because they need to be assembled at an angle. At the same time, the above-mentioned device cannot be adapted to the fixing and positioning of various hub flanges 15. In addition, the retaining ring requires separate special equipment for assembly during the assembly process. To solve the above technical problems, the following improvements are made based on embodiment 1.

[0053] like Figure 5-10 As shown, the top of the inner wall of the assembly cabinet 5 is rotatably connected to multiple rotating rings 19 at the same height, coaxial, and of different diameters. Adjacent rotating rings 19 are rotatably connected. Each rotating ring 19 has a bevel gear ring fixed to its top. All bevel gear rings are driven by two sets of drive components 18. The drive components 18 include a drive motor 1801 fixedly connected to the outer wall of the assembly cabinet 5. A rotating shaft 1802 is fixed on the output shaft of the drive motor 1801. Multiple bevel gears 1803 arranged in a linear array and meshing with the bevel gear rings are rotatably connected to the circumferential side wall of the rotating shaft 1802. The inner side wall of the bevel gears 1803 and the circumferential side wall of the rotating shaft 1802 are fixedly connected by a locking component. The locking component includes insertion holes arranged in a circumferential array on the circumferential side wall of the rotating shaft 1802. The inner side wall of the bevel gears 1803 is provided with an electromagnetic pin that mates with the insertion holes.

[0054] Each rotating ring 19 is equipped with a positioning component 20 at its bottom. The positioning component 20 includes a rotary motor 2001 fixedly connected to the bottom of the rotating ring 19. A first hydraulic telescopic rod 2002 is fixed on the output shaft of the rotary motor 2001. An angle adjustment motor 2003 is fixed at the telescopic end of the first hydraulic telescopic rod 2002. A rotating motor 2004 is fixed on the output shaft of the angle adjustment motor 2003. A second hydraulic telescopic rod 2005 is fixed on the output shaft of the rotating motor 2004. A conical positioning rod 2006 is vertically fixed at the telescopic end of the second hydraulic telescopic rod 2005.

[0055] In use, first open cabinet door 7, control the feeding cylinder 17 to extend from cabinet door 7, place the wheel hub flange 15 to be assembled on top of feeding plate 14, then control the feeding cylinder 17 to retract, causing the feeding plate 14 to move to the top of the top block 13 of hydraulic telescopic support platform 12. The output end of servo motor 1101 drives the positive and negative threaded rod 1104 to rotate. The positive and negative threaded rod 1104 drives the threaded sleeve 1105 to move inward through the thread action. The threaded sleeve 1105 drives the clamping plate 1107 to move inward through the fixing rod 1106, clamping the wheel hub flange 15. Then control the feeding cylinder 17 to retract, and then control the hydraulic telescopic support platform 12 to extend, so that the top block 13 of the hydraulic telescopic support platform 12 abuts against the wheel hub flange 15. Then control one set of drive components 18 to engage with the outermost rotating ring 19. The corresponding electromagnetic pin extends, locking the bevel gear 1803 corresponding to the outermost rotating ring 19 with the rotating shaft 1802. Then, the drive motor 1801 is started, and the drive motor 1801 rotates and drives the rotating shaft 1802. The rotating shaft 1802 rotates and drives the bevel gear 1803 corresponding to the outermost rotating ring 19 to rotate. The bevel gear 1803 corresponding to the outermost rotating ring 19 rotates and drives the outermost rotating ring 19 to rotate. The outermost rotating ring 19 rotates and drives the positioning component 20 to rotate. The positioning component 20 rotates and drives the conical positioning rod 2006 to be on the same diameter line as the positioning hole on the wheel hub flange 15. Then, by controlling the extension of the second hydraulic telescopic rod 2005 and the first hydraulic telescopic rod 2002 corresponding to the outermost rotating ring 19, the conical positioning rod 2006 corresponding to the outermost rotating ring 19 is aligned with the positioning hole on the wheel hub flange 15.Then, the electromagnetic pin corresponding to the outermost rotating ring 19 on another drive assembly 18 is extended, locking the bevel gear 1803 corresponding to the outermost rotating ring 19 to the rotating shaft 1802. Simultaneously, the drive motor 1801 corresponding to the other drive assembly 18 is locked, thus limiting and locking the outermost rotating ring 19 by the other drive assembly 18. Then, the electromagnetic pin corresponding to the outermost rotating ring 19 on one set of drive assemblies 18 is retracted, unlocking the bevel gear 1803 corresponding to the outermost rotating ring 19 from the rotating shaft 1802 on one set. Then, the electromagnetic pin corresponding to the second rotating ring 19 from the outermost on one set of drive assemblies 18 is extended, locking the bevel gear 1803 corresponding to the second rotating ring 19 from the outermost on the rotating shaft 1802. Then, the drive motor 1801 is started, rotating and driving the rotating shaft 1802, which in turn rotates and drives the bevel gear 1803 corresponding to the second rotating ring 19 from the outermost. The rotation of the bevel gear 1803 corresponding to the second outermost rotating ring 19 causes the second outermost rotating ring 19 to rotate, which in turn causes its corresponding positioning component 20 to rotate. The positioning component 20 rotates, causing the tapered positioning rod 2006 to align with the positioning hole on the wheel hub flange 15 on the same diameter line. Then, by controlling the extension of the second hydraulic telescopic rod 2005 and the first hydraulic telescopic rod 2002 corresponding to the outermost rotating ring 19, the tapered positioning rod 2006 corresponding to the outermost rotating ring 19 is aligned with the positioning hole on the wheel hub flange 15. By performing multiple positioning operations on the wheel hub flange 15 in the above manner, this invention enables the device to adapt to the positioning of different types of wheel hub flanges 15, and also to fix wheel hub flanges 15 of the same type but different sizes. This invention improves assembly accuracy and efficiency by positioning and fixing the wheel hub flange 15.

[0056] When a portion of the wheel hub needs to be fitted with a retaining ring, the drive assembly 18 controls the two innermost tapered positioning rods 2006 to be symmetrically distributed from left to right. Then, the pick-and-place holes at both ends of the retaining ring are inserted into the tapered positioning rods 2006. Then, by controlling the extension of the second hydraulic telescopic rod 2005 corresponding to the innermost rotating ring 19, the diameter of the retaining ring is reduced. Then, by controlling the extension of the first hydraulic telescopic rod 2002, the retaining ring is slid into the wheel hub flange 15. This simulates the pick-and-place pliers for picking up and placing the retaining ring.

[0057] After positioning, the lubricated bearing is placed below the bearing assembly mechanism 6 by the robotic arm of the production line. Then, by extending the first electric telescopic rod 602, a vacuum suction cup is inserted into the inner wall of the bearing. Next, by extending the second electric telescopic rod 604, the vacuum suction cup contacts the inner wall of the bearing, and then the vacuum suction cup adheres and fixes the bearing. Then, by rotating the stepper motor, the bearing is tilted, and simultaneously, the first electric telescopic rod 602 is extended, allowing one side of the bearing to first enter the hub flange 15. Then, the stepper motor is reversed, and simultaneously, the first electric telescopic rod 602 is extended, causing the tilted bearing to return to vertical and move further into the hub flange 15, thus placing the bearing into the hub flange 15. Then, the drive assembly 18 controls the corresponding conical positioning rods 2006 on the two innermost rotating rings 19 to be on the same radius line. Next, the drive assembly 18 controls the rotation of the corresponding rotating motor 2004 on the innermost rotating ring 19, causing the flat end of the innermost conical positioning rod 2006 to face the flat end of the second innermost conical positioning rod 2006. Then, the first hydraulic telescopic rod 2002 and the second hydraulic telescopic rod 2005 corresponding to the two innermost rotating rings 19 are adaptively extended, so that the two conical positioning rods 2006 are in a vertically aligned position. Finally, the first hydraulic telescopic rod 2002 corresponding to the innermost rotating ring 19 is extended, causing the two conical positioning rods 2006 to clamp the sealing ring 16, which is coaxial with the bearing. Figure 10 As shown, the second hydraulic telescopic rods 2005 corresponding to the two innermost rotating rings 19 are then controlled to synchronously retract by a preset length, which is the outer radius of the sealing ring 16; thereby causing the sealing ring 16 to be misaligned with the bearing, i.e. Figure 9 As shown, the first hydraulic telescopic rods 2002 corresponding to the two innermost rotating rings 19 are then synchronously extended, causing the sealing ring 16 to contact the bearing end and the hub flange 15. Then, the locking components corresponding to the two innermost rotating rings 19 on one of the drive components 18 lock the bevel gears 1803 corresponding to the two innermost rotating rings 19 to lock the rotating shaft 1802. Then, the drive motor 1801 corresponding to one of the drive components 18 is started. The drive motor 1801 rotates and drives the two innermost rotating rings 19 to rotate. The rotation of the two innermost rotating rings 19 drives the sealing ring 16 to rotate. The rotating sealing ring 16 scrapes the lubricating oil on the bearing and the hub flange 15, so that the lubricating oil is evenly distributed. The excess is applied to the areas where the lubricating oil is insufficient, thereby preventing excessive lubricating oil from overflowing.

[0058] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0059] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic assembly machine for wheel hub bearings of new energy vehicles, comprising a base (1), characterized in that, An assembly cabinet (5) is fixedly installed on the top of the base (1). Multiple rotating rings (19) of the same height, coaxiality, and different diameters are rotatably connected to the top of the inner wall of the assembly cabinet (5). Adjacent rotating rings (19) are rotatably connected. A bevel gear ring is fixed to the top of each rotating ring (19). All bevel gear rings are driven by two sets of drive assemblies (18). Each drive assembly (18) includes a drive motor (1801) fixedly connected to the outer wall of the assembly cabinet (5). The output of the drive motor (1801)... A rotating shaft (1802) is fixed on the shaft. A plurality of bevel gears (1803) arranged in a linear array and meshing with a bevel gear ring are rotatably connected to the circumferential sidewall of the rotating shaft (1802). The inner sidewall of the bevel gears (1803) is fixedly connected to the circumferential sidewall of the rotating shaft (1802) by a locking assembly. The locking assembly includes insertion holes arranged in a circular array on the circumferential sidewall of the rotating shaft (1802). The inner sidewall of the bevel gears (1803) is provided with an electromagnetic pin that mates with the insertion hole. The bottom of the rotating ring (19) is provided with a positioning assembly (20).

2. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 1, characterized in that, The positioning component (20) includes a rotary motor (2001) fixedly connected to the bottom of the rotating ring (19). A first hydraulic telescopic rod (2002) is fixed on the output shaft of the rotary motor (2001). An angle adjustment motor (2003) is fixed on the telescopic end of the first hydraulic telescopic rod (2002). A rotating motor (2004) is fixed on the output shaft of the angle adjustment motor (2003). A second hydraulic telescopic rod (2005) is fixed on the output shaft of the rotating motor (2004). A conical positioning rod (2006) is vertically fixed on the telescopic end of the second hydraulic telescopic rod (2005).

3. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 1, characterized in that, The top of the assembly cabinet (5) is provided with a bearing assembly mechanism (6). The bearing assembly mechanism (6) includes a hydraulic cylinder (601). The hydraulic cylinder (601) is fixedly installed on the top of the assembly cabinet (5). The telescopic end of the hydraulic cylinder (601) passes through the top of the assembly cabinet (5). The left and right sides of the telescopic end of the hydraulic cylinder (601) are rotatably connected to a connecting rod (603) driven by a stepper motor. The end of the connecting rod (603) away from the stepper motor is fixed with a first electric telescopic rod (602). The end of the first electric telescopic rod (602) away from the hydraulic cylinder (601) is fixed with a second electric telescopic rod (604). The telescopic end of the second electric telescopic rod (604) is fixed with a vacuum suction cup.

4. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 1, characterized in that, A dust collection mechanism (4) is provided at the middle of the left side of the assembly cabinet (5). The dust collection mechanism (4) includes a dust collection box (401), a card holder (402), a fan (403), a filter (404), a dust collection pipe (405), a pneumatic telescopic rod (406), a horn pipe (407), and a fixing sleeve (408). The dust collection box (401) is fixedly connected to the middle of the left side of the assembly cabinet (5). The fan (403) is fixedly connected to the left side of the inner cavity of the dust collection box (401). The card holder (402) is fixedly connected to the upper and lower sides of the inner cavity of the dust collection box (401). The filter (404) is clipped into the inner side of the card holder (402). The dust collection pipe (405) is connected to the right side of the dust collection box (401). The horn pipe (407) is connected to the right side of the dust collection pipe (405).

5. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 1, characterized in that, A clamping mechanism (11) is provided at the bottom left side of the assembly cabinet (5). The clamping mechanism (11) includes a servo motor (1101), a slide rod (1102), a sliding groove (1103), a positive and negative threaded rod (1104), a threaded sleeve (1105), a fixing rod (1106), and a clamping plate (1107). The servo motor (1101) is fixedly connected to the bottom left side of the assembly cabinet (5). The positive and negative threaded rod (1104) is fixedly connected to the output end of the servo motor (1101). The threaded sleeve (1105) is threadedly connected to the left and right sides of the outer surface of the positive and negative threaded rod (1104). The fixing rod (1106) is fixedly connected to the top of the threaded sleeve (1105). The clamping plate (1107) is fixedly connected to the inner side of the fixing rod (1106).

6. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 5, characterized in that, A feeding cylinder (17) is fixedly connected to the back side of the assembly cabinet (5), and a feeding plate (14) is fixedly connected to the front side of the feeding cylinder (17). A hydraulic telescopic support platform (12) is provided at the bottom of the assembly cabinet (5), and a top block (13) is provided at the top of the hydraulic telescopic support platform (12).

7. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 4, characterized in that, The fixing sleeve (408) is fitted onto the outer surface of the suction pipe (405). The pneumatic telescopic rod (406) is fixedly connected to the top of the fixing sleeve (408), and the end of the pneumatic telescopic rod (406) away from the fixing sleeve (408) is fixedly installed on the left side of the inner cavity of the assembly cabinet (5). The front side of the suction mechanism (4) is movably connected to the door (3) via a hinge, and the front side of the door (3) is fixedly connected to a handle.

8. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 1, characterized in that, The front side of the assembly cabinet (5) is connected to a cabinet door (7) via a hinge, and an observation window (8) is embedded in the front side of the cabinet door (7).

9. The automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 1, characterized in that, The base (1) is fixedly connected to support legs (9) around its bottom, and the bottom of the support legs (9) is provided with rubber anti-slip pads (10).

10. An automatic assembly machine for wheel hub bearings of new energy vehicles according to claim 5, characterized in that, A protective cover (2) is provided on the left side of the assembly cabinet (5) and outside the servo motor (1101). The inner surface of the protective cover (2) is connected to the surface of the assembly cabinet (5) by bolts and threads. The sliding groove (1103) is opened on the left and right sides of the bottom of the inner cavity of the assembly cabinet (5). The slide rod (1102) is fixedly connected to the bottom of the threaded sleeve (1105), and the bottom of the slide rod (1102) is slidably connected to the inner cavity of the sliding groove (1103).

Images