Axle hub assembling device and method

Abstract

The invention relates to the technical field of hub assembling devices, and particularly discloses an axle hub assembling device and method.The axle hub assembling device comprises a machine body, and the machine body is provided with a bearing mechanism, a driving mechanism and a driving mechanism; the filling mechanism is distributed above the bearing mechanism in a spaced mode, the filling mechanism comprises a filling ring, a center column arranged in the filling ring in a sleeved mode and a rotary driver driving the filling ring to rotate, the filling ring is provided with a positioning hole, and a clamp is arranged in the positioning hole; the feeding mechanism is located beside the filling mechanism, the feeding mechanism comprises a storage frame and a feeder, a feeding hole is formed in the end of the storage frame, the feeding hole is located above the positioning hole, and the side, close to the center column, of the feeding hole is connected with the outer side wall of the center column; and the pressing mechanism is distributed above the filling mechanism at intervals, and the pressing mechanism comprises a pressing head and a pressing driver for driving the pressing head to ascend and descend. According to the axle hub assembling device and method, the consistency of the assembling efficiency, the assembling precision and the assembling quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub assembly devices, and in particular to an axle wheel hub assembly device and method. Background Art

[0002] The wheel hub is an important part of agricultural machinery vehicles. The wheel hub is connected to the axle of the agricultural machinery vehicle through bolts, transferring the weight of the vehicle to the tire, and then to the ground through the tire. In the manufacturing process of agricultural machinery axles, the assembly of the wheel hub is a critical and complex process link, involving multiple steps and precise matching of components. During the assembly process of the wheel hub, the various components of the wheel hub, such as bearings, oil seals, bolts, etc., need to be accurately installed to the corresponding positions of the wheel hub. These components are often fixed to the wheel hub by press fitting to ensure its stability and durability. Among them, when press-fitting the bolts, it is necessary to place the bolts according to the position, and use a press machine to press the bolts into the assembly holes of the wheel hub one by one to complete the press fitting of the wheel hub assembly.

[0003] The axle hub assembly device in the prior art, such as a Chinese patent document with authorization announcement number CN219617602U, discloses an automatic press-fit device for automobile hub unit bolts. The rotation of the threaded rod of the automatic press-fit device for automobile hub unit bolts can drive two movable blocks to move closer to each other. The movable blocks slide on the slide rod. The setting of the slide rod can ensure that the movable blocks move linearly and support the movable blocks at the same time. The two clamping blocks set on the two movable blocks are close to each other to clamp and fix the mold. The opening size of the two clamping blocks can be adjusted by rotating the threaded rod, so as to clamp and fix molds of different sizes. Then, the hydraulic press body is started by the drive system to drive the hydraulic piston to press the bolts of the wheel hub. Then, the starter motor drives the turntable to rotate. The rotation of the turntable can make the bolts at different positions on the mold face the hydraulic piston to press the bolts at different positions, thereby completing the automatic press-fitting work.

[0004] However, the above-mentioned automobile wheel hub unit bolt automatic press-fitting device in the prior art needs to place the bolt into the assembly hole of the wheel hub during the press-fitting process. Since the nut of the bolt is usually provided with a notch on the side close to the central axis of the wheel hub, and the wheel hub has an assembly wall distributed along the circumference of the wheel hub, the notch is adapted to the assembly wall of the wheel hub, which is convenient for positioning the bolt and can prevent the bolt from rotating and loosening during the subsequent installation of the nut. This will cause the staff to align the notches of the bolts with the assembly wall of the wheel hub one by one when placing the bolts. Manual positioning and placement of the bolts is a repetitive and time-consuming process, especially in mass production, which will significantly reduce assembly efficiency. Moreover, ensuring that the notch of each bolt is aligned with the assembly wall of the wheel hub requires highly precise operation, and manual operation is difficult to ensure that the notch of each bolt is accurately aligned. Summary of the invention

[0005] The present invention provides an axle wheel hub assembly device and method, aiming to solve the problems of low manual assembly efficiency and difficulty in ensuring assembly accuracy in the automatic press-fitting device for automobile wheel hub unit bolts in the related art.

[0006] The present invention provides an axle hub assembly device that adopts the following technical solution: A vehicle bridge hub assembly device comprises a body, on which is provided: A supporting mechanism, the supporting mechanism comprising a tray for placing the wheel hub, and a positioning member arranged on the tray for positioning the wheel hub; A filling mechanism, which is arranged above the supporting mechanism in the air and is used to store the loaded bolts to be pressed, and includes a filling ring, a center column sleeved in the filling ring, and a rotary driver for driving the filling ring to rotate around the central axis of the center column. The filling ring has positioning holes corresponding to the assembly holes of the wheel hub, and a clamp for clamping the bolts is arranged in each positioning hole. The outer side wall of the center column corresponds to the assembly wall of the wheel hub up and down. A feeding mechanism, which is located beside the filling mechanism and is used to deliver the bolts to the filling mechanism. The feeding mechanism includes a storage rack for discharging the bolts and a feeder for pushing the bolts. The end of the storage rack close to the filling mechanism has a feeding hole corresponding to the positioning hole of the filling ring. The feeding hole is located above the positioning hole and is close to the side of the central column and connected to the outer side wall of the central column; The clamping mechanism is distributed above the filling mechanism in the air and is used to press the bolts stored in the filling ring into the assembly holes of the wheel hub. The clamping mechanism includes a pressure head corresponding to the assembly holes of the wheel hub and a clamping driver for driving the pressure head to rise and fall.

[0007] By adopting the above technical scheme, a supporting mechanism, a filling mechanism, a feeding mechanism and a pressing mechanism are arranged on the machine body. When the bolts are assembled onto the wheel hub, the wheel hub is first positioned by the supporting mechanism, and then the bolts are transported to the filling mechanism by the feeding mechanism. Through the cooperation between the feeding mechanism and the filling mechanism, the bolts are loaded into the positioning holes of the filling ring one by one, and then the bolts stored in the filling ring are pressed into the assembly holes of the wheel hub by the pressing mechanism, thereby realizing automatic loading, automatic filling and automatic pressing of the bolts. Moreover, through the mutual cooperation among the supporting mechanism, the filling mechanism, the feeding mechanism and the pressing mechanism, it is ensured that the notch of each bolt is aligned with the assembly wall of the wheel hub, thereby ensuring the precise alignment of the bolts and improving the assembly efficiency, assembly accuracy and consistency of assembly quality.

[0008] Furthermore, a material conveying channel is formed on a side of the material storage rack away from the loading hole, and the material conveying channel has a T-shaped chamber for placing bolts.

[0009] By adopting the above technical solution, the bolts can be transported in a specified order and direction.

[0010] Furthermore, among the pressure heads, the height of the pressure head corresponding to the feeding hole is smaller than the heights of the remaining pressure heads, and the height difference is the height of the bolt.

[0011] Furthermore, the clamp includes a clamping block assembled in the positioning hole and movable along the radial direction of the positioning hole, and a clamping elastic member connected between the filling ring and the clamping block, wherein the clamping elastic member is used to apply elastic force to the clamping block so that the clamping block is close to the bolt to clamp the bolt.

[0012] Furthermore, the upper end of the clamping block has an inclined surface which slopes downward from the hole wall of the positioning hole toward the direction of the bolt, and is used to abut against the nut of the bolt.

[0013] By adopting the above technical solution, after the bolt is subjected to pressure from top to bottom by the clamping mechanism, the nut of the bolt can push the inclined surface at the upper end of the clamp block to pass over the clamp block, thereby preventing the nut of the bolt from getting stuck with the clamp block.

[0014] Furthermore, the rotary driver includes a driven gear disposed on the outer peripheral side of the filling ring, a driving gear meshing with the driven gear, and a motor driving the driving gear to rotate.

[0015] Furthermore, a slide is provided on the machine body, and the supporting mechanism is provided on the slide. The slide is used to enable the supporting mechanism with the wheel hub placed thereon to enter or exit the press-fitting position.

[0016] Furthermore, the tray includes a center plate fixed on the slide, and a support ring assembled on the slide for up and down movement, the positioning piece includes a positioning pin corresponding to the assembly hole of the wheel hub and used to be inserted into the assembly hole, the positioning pin is fixed on the upper surface of the support ring, and an adjustment spring is connected between the support ring and the slide.

[0017] By adopting the above technical solution, the adjusting spring is used to give the locating pin upward pressure against the bolt, so that the locating pin cooperates with the pressure head to support the bolt and ensure that the bolt enters the assembly hole perpendicular to the wheel hub surface, thereby ensuring the precise alignment of the bolt.

[0018] Furthermore, the machine body is also provided with a lifting driver located just below the press-fitting position, and the lifting driver is used to drive the slide table to drive the supporting mechanism to move upward.

[0019] The above technical solution is adopted to adjust the height of the supporting mechanism, ensure the relative position between the wheel hub and the clamping mechanism is accurate, so that the bolts can be correctly pressed into the assembly hole of the wheel hub, and can also adapt to the pressing operation of wheel hubs of different specifications.

[0020] The present invention also provides an axle hub assembly method, comprising the following steps: The first step is to position the wheel hub, place the wheel hub on the tray, and position the wheel hub using the positioning piece; The second step is loading and filling. The feeder transports the bolts along the storage rack to the loading hole. The bolts entering the loading hole fall into the positioning hole of the filling ring and are clamped and fixed by the clamp in the positioning hole. The rotary driver drives the filling ring to rotate around the central axis of the central column, so that the next positioning hole of the filling ring corresponds to the loading hole of the storage rack, so as to fill the positioning holes at different positions. The third step is to press the bolts. The pressing driver drives the pressing head downward to press the bolts stored in the filling ring into the assembly hole of the wheel hub.

[0021] By adopting the above technical scheme, automatic loading, automatic filling and automatic pressing of bolts are realized, and through the mutual cooperation between the supporting mechanism, the filling mechanism, the loading mechanism and the clamping mechanism, it is ensured that the notch of each bolt is aligned with the assembly wall of the wheel hub, thereby ensuring the precise positioning of the bolts and improving the assembly efficiency, assembly accuracy and consistency of assembly quality.

[0022] The beneficial effects of the axle wheel hub assembly device and method provided by the present invention are as follows: a supporting mechanism, a filling mechanism, a feeding mechanism and a clamping mechanism are arranged on the machine body; when the bolts are assembled to the wheel hub, the wheel hub is first positioned by the supporting mechanism, and then the bolts are transported to the filling mechanism by the feeding mechanism, and the bolts are filled into the positioning holes of the filling ring one by one through the cooperation of the feeding mechanism and the filling mechanism, and then the bolts stored in the filling ring are pressed into the assembly holes of the wheel hub through the clamping mechanism, thereby realizing automatic loading, automatic filling and automatic pressing of the bolts, and through the mutual cooperation among the supporting mechanism, the filling mechanism, the feeding mechanism and the clamping mechanism, it is ensured that the notch of each bolt is aligned with the assembly wall of the wheel hub, thereby ensuring the precise alignment of the bolts and improving the assembly efficiency, assembly accuracy and consistency of assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the axle wheel hub assembly device of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the supporting mechanism and the slide table of the axle wheel hub assembly device of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the filling mechanism of the axle wheel hub assembly device of the present invention.

[0026] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 It is a cross-sectional view of a clamp of the axle hub assembly device of the present invention.

[0028] Figure 6 It is a structural schematic diagram of the feeding mechanism of the axle wheel hub assembly device of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the clamping mechanism of the axle wheel hub assembly device of the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of the wheel hub.

[0031] Reference numerals: 10. Machine body; 110. Fixing plate; 20. Supporting mechanism; 210. Tray; 220. Positioning pin; 30. Filling mechanism; 310. Filling ring; 311. Positioning hole; 320. Center column; 330. Rotary drive; 331. Driven gear; 332. Driving gear; 333. Motor; 340. Clamp; 341. Clamp block; 342. Clamping elastic member; 40. Feeding mechanism; 410. Storage rack; 411. Feeding hole; 50. Pressing mechanism; 510. Pressing head; 520. Pressing drive; 530. Mounting plate; 540. Limiting plate; 60. Slide; 610. Adjusting spring; 70. Controller; 80. Bolt; 90. Hub; 910. Assembly hole; 920. Assembly wall. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] like Figures 1 to 8 As shown, an embodiment of the axle wheel hub assembly device of the present invention is used to press-fit a bolt 80 into an assembly hole 910 of a wheel hub 90 and align the notch of the bolt 80 with the assembly wall 920 of the wheel hub 90, and includes a body 10, a supporting mechanism 20, a filling mechanism 30, a feeding mechanism 40, a pressing mechanism 50, a slide 60, a lifting driver and a controller 70. The pressing mechanism 50, the filling mechanism 30, the supporting mechanism 20, the slide 60 and the lifting driver are sequentially arranged on the body 10 from top to bottom, the feeding mechanism 40 is located beside the filling mechanism 30, and the controller 70 is arranged beside the body 10.

[0034] Among them, the supporting mechanism 20 is used to place the wheel hub 90, the loading mechanism 40 is used to transport the bolts 80 to the filling mechanism 30, the filling mechanism 30 is used to store the loaded bolts 80 to be pressed, the clamping mechanism 50 is used to press the bolts 80, the slide 60 is used to make the supporting mechanism 20 with the wheel hub 90 placed enter or exit the pressing position, the lifting drive is used to drive the slide 60 to drive the supporting mechanism 20 to move upward, and the controller 70 is used to operate and monitor the entire pressing process to ensure the accuracy and safety of the pressing.

[0035] like Figure 1 and Figure 2 As shown, the slide 60 is movably assembled on the machine body 10, and the supporting mechanism 20 is arranged on the slide 60. The lower end of the slide 60 is provided with a handle, allowing the staff to hold the handle to push or pull the slide 60, so as to drive the supporting mechanism 20 with the wheel hub 90 placed thereon to enter or exit the press-fitting position, so as to facilitate the rapid replacement of the wheel hub 90. The upper surface of the slide 60 is provided with a positioning column, and the outer side wall of the positioning column is provided with a limit groove extending up and down. The supporting mechanism 20 includes a tray 210 for placing the wheel hub 90, and a positioning member arranged on the tray 210 for positioning the wheel hub 90. The tray 210 includes a center disk fixed on the upper surface of the positioning column, a support ring located outside the center disk and movably sleeved outside the positioning column, and the support ring has a limit block that slides with the limit groove, so that the support ring can move up and down relative to the slide 60 and limit the support ring from rotating relative to the slide 60. An adjustment spring 610 is connected between the support ring and the slide 60. The positioning member includes a positioning pin 220 corresponding to the assembly hole 910 of the wheel hub 90 and used to be inserted into the assembly hole 910. The positioning pin 220 is fixed to the upper surface of the support ring. The adjustment spring 610 is used to give the positioning pin 220 an upward pressure against the bolt 80, so that the positioning pin 220 cooperates with the pressure head 510 to support the bolt 80 and ensure that the bolt 80 enters the assembly hole 910 perpendicular to the surface of the wheel hub 90, thereby ensuring the accurate alignment of the bolt 80.

[0036] The lifting driver is a hydraulic cylinder and is located directly below the press-fit position. The output shaft of the lifting driver can abut against the lower surface of the slide 60 to push the slide 60 to drive the supporting mechanism 20 to move upward, thereby adjusting the height of the supporting mechanism 20, ensuring the relative position between the wheel hub 90 and the clamping mechanism 50 is accurate, so that the bolt 80 can be correctly pressed into the assembly hole 910 of the wheel hub 90, and can also adapt to the press-fit operation of wheel hubs 90 of different specifications. In other embodiments, the lifting driver can also be a cylinder or an electric push rod.

[0037] like Figure 1 , Figure 3 and Figure 6 As shown, the feeding mechanism 40 includes a storage rack 410 for discharging bolts 80 and a feeder for pushing the bolts 80. The end of the storage rack 410 close to the filling mechanism 30 has a feeding hole 411 for feeding, and the side of the storage rack 410 away from the feeding hole 411 forms a feeding channel, and the feeding channel has a T-shaped chamber for placing the bolts 80, so that the bolts 80 can be transported in a specified order and direction. The feeder in the embodiment is a vibrating plate, which is used to push the bolts 80 in the storage rack 410 along the feeding channel to the feeding hole 411. Thus, automatic feeding of the bolts 80 is achieved, manual operation is reduced, and production efficiency is improved. In other embodiments, the feeder can also be a belt conveyor or a screw conveyor.

[0038] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the filling mechanism 30 includes a filling ring 310 , a center column 320 sleeved in the filling ring 310 , a rotation driver 330 driving the filling ring 310 to rotate around the center axis of the center column 320 , and a clamp 340 disposed on the filling ring 310 .

[0039] The body 10 in the embodiment has a fixing plate 110 for mounting the filling mechanism 30, a filling ring 310 is rotatably mounted on the fixing plate 110, and a center column 320 is fixedly mounted on the fixing plate 110. In other embodiments, the center column 320 may also be fixedly connected to the filling ring 310 and synchronously rotate around the central axis of the center column 320. The filling ring 310 has a positioning hole 311 corresponding to the assembly hole 910 of the wheel hub 90, the outer side wall of the center column 320 corresponds to the assembly wall 920 of the wheel hub 90 up and down, and the clamp 340 corresponds to the positioning hole 311 one by one and is arranged in the positioning hole 311 for clamping the bolt 80.

[0040] The loading hole 411 of the storage rack 410 corresponds to one of the positioning holes 311 of the filling ring 310. The loading hole 411 is located above the positioning hole 311 and is connected to the outer wall of the center column 320 on the side close to the center column 320. Therefore, when the feeder pushes the bolt 80 along the feeding channel to the loading hole 411, the notch of the bolt 80 is aligned with the outer wall of the center column 320, so that the bolt 80 entering the loading hole 411 can fall into the positioning hole 311 of the filling ring 310 under the action of gravity, thereby ensuring that the bolt 80 transported by the loading mechanism 40 is accurately aligned with the receiving position of the filling mechanism 30, thereby improving the assembly accuracy and assembly efficiency.

[0041] The clamp 340 includes a clamp block 341 which is radially movable and assembled in the positioning hole 311, and a clamping elastic member 342 connected between the filling ring 310 and the clamp block 341. In the embodiment, three clamp blocks 341 are arranged along the circumference of the positioning hole 311, and the clamping elastic member 342 is an elastic telescopic rod, which is used to apply elastic force to the clamp block 341 so that the clamp block 341 is close to the bolt 80 to clamp the bolt 80. The upper end of the clamp block 341 has an inclined surface which is inclined downward from the hole wall of the positioning hole 311 to the direction of the bolt 80, which is used to abut against the nut of the bolt 80, so that the bolt 80 can push the inclined surface of the upper end of the clamp block 341 to pass over the clamp block 341 after being pressed from top to bottom by the clamping mechanism 50, thereby avoiding the nut of the bolt 80 and the clamp block 341 from getting stuck. In other embodiments, the clamping elastic member 342 can also be a spring.

[0042] The rotary driver 330 includes a driven gear 331 disposed on the outer peripheral side of the filling ring 310, a driving gear 332 meshing with the driven gear 331, and a motor 333 driving the driving gear 332 to rotate. The motor 333 is fixedly mounted on the fixed plate 110. When the motor 333 drives the driving gear 332 to rotate, the driving gear 332 can drive the filling ring 310 to rotate around the central axis of the central column 320 through the driven gear 331, so that the next positioning hole 311 of the filling ring 310 corresponds to the loading hole 411 of the storage rack 410, so as to fill the positioning holes 311 at different positions, until the positioning holes 311 on the filling ring 310 are filled one by one, thereby realizing automatic filling.

[0043] like Figure 1 , Figure 3 and Figure 7 As shown, the clamping mechanism 50 includes a pressure head 510, a clamping driver 520, a mounting plate 530 and a limiting plate 540. The clamping driver 520 is a hydraulic cylinder and is fixedly mounted on the machine body 10. The mounting plate 530 is fixed to the output end of the clamping driver 520. The limiting plate 540 is fixed to the center position of the lower end of the mounting plate 530 through a connecting shaft and extends into the center column 320 to ensure that the mounting plate 530 is aligned with the center axis of the center column 320 when moving up and down, thereby improving the stability of the equipment. The pressure head 510 corresponds to the assembly hole 910 of the wheel hub 90 one by one, and is fixed to the lower end of the mounting plate 530 along the circumference of the mounting plate 530. Among the pressure heads 510, the height of the pressure head 510 corresponding to the feeding hole 411 is less than the height of the other pressure heads 510, and the height difference is the height of the bolt 80. In other embodiments, the clamping driver 520 can also be a cylinder or an electric push rod.

[0044] When the bolt 80 is pressed, the lifting driver first drives the supporting mechanism 20 to move upward, so that the upper surface of the hub 90 abuts against the lower surface of the center column 320. Then, the pressing driver 520 drives each pressing head 510 to move downward, and the lower surface of the pressing head 510 corresponding to the feeding hole 411 abuts against the upper surface of the bolt 80 in the feeding hole 411, and by pushing the bolt 80 in the feeding hole 411, the bolt 80 in the feeding hole 411 pushes the bolt 80 in the lower positioning hole 311 downward, while the lower surfaces of the remaining pressing heads 510 abut against the upper surfaces of the bolt 80 in the positioning hole 311, and directly push the bolt 80 in the positioning hole 311 downward. Afterwards, the lower surface of the bolt 80 in the filling ring 310 abuts against the upper surface of the positioning pin 220, and pushes the positioning pin 220 and the supporting ring downward, the adjustment spring 610 is compressed, and the positioning pin 220 is given pressure to abut against the bolt 80 upward, so that the positioning pin 220 cooperates with the pressure head 510 to support the bolt 80, and ensures that the bolt 80 enters the assembly hole 910 perpendicular to the surface of the wheel hub 90, thereby ensuring the accurate alignment of the bolt 80. Finally, each pressure head 510 presses the bolt 80 filled in the filling ring 310 into the assembly hole 910 of the wheel hub 90, and at the same time, the pressure head 510 corresponding to the loading hole 411 pushes the bolt 80 in the loading hole 411 into the positioning hole 311 below, and while completing the press-fitting of the bolt 80 of the current wheel hub 90, the first bolt 80 of the next wheel hub 90 to be assembled is filled, which effectively improves the assembly efficiency.

[0045] An embodiment of the axle hub assembly method of the present invention comprises the following steps: The first step is to position the wheel hub 90 . The wheel hub 90 is placed on the tray 210 and positioned by a positioning member.

[0046] The second step is loading and filling. The feeder transports the bolt 80 along the storage rack 410 to the loading hole 411. The bolt 80 entering the loading hole 411 falls into the positioning hole 311 of the filling ring 310 and is clamped and fixed by the clamp 340 in the positioning hole 311. The rotary driver 330 drives the filling ring 310 to rotate around the central axis of the central column 320, so that the next positioning hole 311 of the filling ring 310 corresponds to the loading hole 411 of the storage rack 410, so as to fill the positioning holes 311 at different positions.

[0047] The third step is to press-fit the bolts 80 . The pressing driver 520 drives the pressing head 510 to move downward, and presses the bolts 80 stored in the filling ring 310 into the assembly hole 910 of the wheel hub 90 .

[0048] Therefore, a supporting mechanism 20, a filling mechanism 30, a feeding mechanism 40 and a pressing mechanism 50 are provided on the machine body 10. When the bolt 80 is assembled to the wheel hub 90, the wheel hub 90 is first positioned by the supporting mechanism 20, and then the bolt 80 is transported to the filling mechanism 30 by the feeding mechanism 40. Through the cooperation between the feeding mechanism 40 and the filling mechanism 30, the bolts 80 are loaded into the positioning holes 311 of the filling ring 310 one by one, and then the bolts 80 stored in the filling ring 310 are pressed into the assembly holes 910 of the wheel hub 90 by the pressing mechanism 50, thereby realizing automatic loading, automatic filling and automatic pressing of the bolts 80. In addition, through the mutual cooperation among the supporting mechanism 20, the filling mechanism 30, the feeding mechanism 40 and the pressing mechanism 50, it is ensured that the notch of each bolt 80 is aligned with the assembly wall 920 of the wheel hub 90, thereby ensuring the precise positioning of the bolt 80 and improving the assembly efficiency, assembly accuracy and consistency of assembly quality.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A vehicle axle hub assembly device, comprising a body, characterized in that: The machine body is provided with: A supporting mechanism, the supporting mechanism comprising a tray for placing the wheel hub, and a positioning member arranged on the tray for positioning the wheel hub; A filling mechanism, which is arranged above the supporting mechanism in the air and is used to store the loaded bolts to be pressed, and includes a filling ring, a center column sleeved in the filling ring, and a rotary driver for driving the filling ring to rotate around the central axis of the center column. The filling ring has positioning holes corresponding to the assembly holes of the wheel hub, and a clamp for clamping the bolts is arranged in each positioning hole. The outer side wall of the center column corresponds to the assembly wall of the wheel hub up and down. A feeding mechanism, which is located beside the filling mechanism and is used to deliver the bolts to the filling mechanism. The feeding mechanism includes a storage rack for discharging the bolts and a feeder for pushing the bolts. The end of the storage rack close to the filling mechanism has a feeding hole corresponding to the positioning hole of the filling ring. The feeding hole is located above the positioning hole and is close to the side of the central column and connected to the outer side wall of the central column; The clamping mechanism is distributed above the filling mechanism in the air and is used to press the bolts stored in the filling ring into the assembly holes of the wheel hub. The clamping mechanism includes a pressure head corresponding to the assembly holes of the wheel hub and a clamping driver for driving the pressure head to rise and fall.

2. The axle hub assembly device according to claim 1, characterized in that: A material conveying channel is formed on one side of the material storage rack away from the material loading hole, and the material conveying channel has a T-shaped chamber for placing bolts.

3. The axle hub assembly device according to claim 1, characterized in that: Among the pressure heads, the height of the pressure head corresponding to the feeding hole is smaller than the heights of the remaining pressure heads, and the height difference is the height of the bolt.

4. The axle hub assembly device according to claim 1, characterized in that: The clamp comprises a clamp block which is assembled in the positioning hole and moves radially along the positioning hole, and a clamping elastic member connected between the filling ring and the clamp block. The clamping elastic member is used to apply elastic force to the clamp block so that the clamp block is close to the bolt and clamps the bolt.

5. The axle hub assembly device according to claim 4, characterized in that: The upper end of the clamping block is provided with an inclined surface which is inclined downward from the hole wall of the positioning hole toward the direction of the bolt and is used for abutting against the nut of the bolt.

6. The axle hub assembly device according to claim 1, characterized in that: The rotary driver comprises a driven gear arranged on the outer peripheral side of the filling ring, a driving gear meshing with the driven gear, and a motor driving the driving gear to rotate.

7. The axle hub assembly device according to claim 1, characterized in that: The machine body is also provided with a slide, the supporting mechanism is arranged on the slide, and the slide is used to make the supporting mechanism with the wheel hub placed thereon enter or exit the press-fitting position.

8. The axle hub assembly device according to claim 7, characterized in that: The tray includes a center plate fixed on the slide and a support ring assembled on the slide for up and down movement. The positioning piece includes a positioning pin which corresponds to the assembly hole of the wheel hub and is used to be inserted into the assembly hole. The positioning pin is fixed on the upper surface of the support ring. An adjustment spring is connected between the support ring and the slide.

9. The axle hub assembly device according to claim 8, characterized in that: The machine body is also provided with a lifting driver located just below the press-fitting position, and the lifting driver is used to drive the slide table to drive the supporting mechanism to move upward.

10. A method for assembling a wheel hub of a vehicle, characterized in that: The axle hub assembly device according to claim 1 comprises the following steps: The first step is to position the wheel hub, place the wheel hub on the tray, and position the wheel hub using the positioning piece; The second step is loading and filling. The feeder transports the bolts along the storage rack to the loading hole. The bolts entering the loading hole fall into the positioning hole of the filling ring and are clamped and fixed by the clamp in the positioning hole. The rotary driver drives the filling ring to rotate around the central axis of the central column, so that the next positioning hole of the filling ring corresponds to the loading hole of the storage rack, so as to fill the positioning holes at different positions. The third step is to press the bolts. The pressing driver drives the pressing head downward to press the bolts stored in the filling ring into the assembly hole of the wheel hub.

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