An axle hub assembly device and method

Abstract

The present invention relates to the technical field of hub assembly devices, and specifically discloses an axle hub assembly device and method, which includes a machine body, and the following components are arranged on the machine body: a supporting mechanism, including a tray and a positioning member arranged on the tray; a filling mechanism, spaced above the supporting mechanism, the filling mechanism includes a filling ring, a central column sleeved in the filling ring, and a rotation driver for driving the filling ring to rotate, the filling ring has a positioning hole, and a fixture is arranged in the positioning hole; a feeding mechanism, located beside the filling mechanism, the feeding mechanism includes a storage rack and a feeder, the end of the storage rack has a feeding hole, the feeding hole is located above the positioning hole and is connected to the outer side wall of the central column on one side close to the central column; a pressing mechanism, spaced above the filling mechanism, the pressing mechanism includes a pressing head and a pressing driver for driving the pressing head to move up and down. The axle hub assembly device and method improve the assembly efficiency, assembly accuracy and consistency of assembly quality.

Description

Technical Field

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

[0002] The hub is an important part of an agricultural machinery vehicle. The hub is connected to the axle of the agricultural machinery vehicle through bolts, transmits the weight of the vehicle to the tire, and then to the ground through the tire. During the manufacturing process of an agricultural machinery axle, the assembly of the hub is a key and complex technological process, involving the precise coordination of multiple steps and components. During the hub assembly process, various components of the hub, such as bearings, oil seals, bolts, etc., need to be precisely installed in the corresponding positions of the hub. These components are often fixed to the hub by press-fitting to ensure their stability and durability. Among them, when press-fitting bolts, the bolts need to be placed in position and then each bolt is press-fitted into the assembly hole of the hub using a press-fitting machine to complete the press-fitting of the hub assembly.

[0003] In the existing axle hub assembly device, such as an automatic bolt press-fitting device for an automotive hub unit disclosed in a Chinese patent document with the authorization announcement number CN219617602U, the rotation of the threaded rod of the automatic bolt press-fitting device for the automotive hub unit can drive two movable blocks to move closer to each other. The movable blocks slide on the sliding rods. The setting of the sliding rods can ensure that the movable blocks move in a straight line and at the same time support the movable blocks. Two clamping blocks arranged on the two movable blocks move closer to each other to clamp and fix the mold. By rotating the threaded rod, the opening size of the two clamping blocks can be adjusted, so as to clamp and fix molds of different sizes. Then, by starting the drive system to start the hydraulic press main body, it drives the hydraulic piston to press-fit the bolts of the hub. Then, by starting the motor to drive 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-fit the bolts at different positions, thus completing the automatic press-fitting work.

[0004] However, during the press-fitting process of the above-mentioned automatic bolt press-fitting device for an automotive hub unit in the prior art, the bolts need to be placed into the assembly holes of the hub. Since a notch is usually provided on one side of the nut of the bolt close to the central axis of the hub, and the hub has an assembly wall distributed along the circumferential direction of the hub, the notch is adapted to the assembly wall of the 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 that when the staff places the bolts, they need to align the notch of each bolt with the assembly wall of the hub one by one. Manually positioning and placing the bolts is a repetitive and time-consuming process. Especially in mass production, this will significantly reduce the assembly efficiency. Moreover, ensuring that the notch of each bolt is precisely aligned with the assembly wall of the hub requires highly precise operation, and it is difficult for manual operation to ensure that the notch of each bolt is precisely aligned. Summary of the Invention

[0005] The present invention provides an axle hub assembly device and method, aiming to solve the problems in the related art that the manual operation assembly efficiency of the automatic press-fitting device for automotive hub unit bolts is relatively low and it is difficult to ensure the assembly accuracy.

[0006] The axle hub assembly device provided by the present invention adopts the following technical solutions:

[0007] An axle hub assembly device includes a machine body, and the following are provided on the machine body:

[0008] A supporting mechanism, which includes a tray for placing the hub and a positioning member provided on the tray for positioning the hub;

[0009] A filling mechanism, which is spaced above the supporting mechanism and is used for storing the bolts to be press-fitted after feeding. The filling mechanism includes a filling ring, a central column sleeved in the filling ring, and a rotary driver for driving the filling ring to rotate around the central axis of the central column. The filling ring has positioning holes corresponding one by one to the assembly holes of the hub, and clamps for clamping the bolts are provided in each positioning hole. The outer side wall of the central column corresponds up and down to the assembly wall of the hub;

[0010] A feeding mechanism, which is located beside the filling mechanism and is used for conveying 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 the side close to the central column is connected to the outer side wall of the central column;

[0011] A pressing mechanism, which is spaced above the filling mechanism and is used for pressing the bolts stored in the filling ring into the assembly holes of the hub. The pressing mechanism includes a pressing head corresponding one by one to the assembly holes of the hub and a pressing driver for driving the pressing head to move up and down.

[0012] By adopting the above technical solutions, a supporting mechanism, a filling mechanism, a feeding mechanism and a pressing mechanism are provided on the machine body. When assembling the bolts onto the hub, first, the hub is positioned by the supporting mechanism, then the bolts are conveyed to the filling mechanism by the feeding mechanism, and through the cooperation of the feeding mechanism and the filling mechanism, the bolts are filled into the positioning holes of the filling ring one by one. Subsequently, the bolts stored in the filling ring are pressed into the assembly holes of the hub by the pressing mechanism, thus realizing the automatic feeding, automatic filling and automatic press-fitting of the bolts. And 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 hub, guaranteeing the precise alignment of the bolts, and improving the consistency of the assembly efficiency, assembly accuracy and assembly quality.

[0013] Further, a material conveying channel is formed on one side of the storage rack away from the feeding hole, and the material conveying channel has a T-shaped chamber for placing bolts.

[0014] With the above technical solution, the bolts can be conveyed in a specified order and direction.

[0015] Further, among the pressing heads, the height of the pressing head corresponding to the feeding hole is less than the height of the other pressing heads, and the height difference is the height of the bolt.

[0016] Further, the fixture includes a clamping block movably assembled in the positioning hole along the radial direction of the positioning hole, and a clamping elastic member connected between the filling ring and the clamping block. The clamping elastic member is used to apply an elastic force to the clamping block so that the clamping block approaches the bolt to clamp the bolt.

[0017] Further, the upper end of the clamping block has an inclined surface that slopes downward from the hole wall of the positioning hole towards the bolt, for abutting against the nut of the bolt.

[0018] With the above technical solution, after the bolt is subjected to the pressure from top to bottom by the pressing mechanism, the nut of the bolt can push the inclined surface at the upper end of the clamping block over the clamping block, thus preventing the nut of the bolt from being stuck with the clamping block.

[0019] Further, the rotary driver includes a driven gear arranged on the outer peripheral side of the filling ring, a driving gear meshing with the driven gear, and a motor for driving the driving gear to rotate.

[0020] Further, a sliding table is also arranged on the machine body, the supporting mechanism is arranged on the sliding table, and the sliding table is used to make the supporting mechanism with the hub placed thereon enter or exit the pressing position.

[0021] Further, the tray includes a central disk fixed on the sliding table and a supporting ring movably assembled up and down on the sliding table. The positioning member includes positioning pins corresponding to the assembly holes of the hub one by one and used for inserting into the assembly holes. The positioning pins are fixed on the upper surface of the supporting ring, and an adjusting spring is connected between the supporting ring and the sliding table.

[0022] With the above technical solution, the adjusting spring is used to apply an upward pressure to the positioning pins to abut against the bolts, so that the positioning pins cooperate with the pressing heads to support the bolts and ensure that the bolts enter the assembly holes perpendicular to the surface of the hub, thereby ensuring the accurate alignment of the bolts.

[0023] Further, a lifting driver is also arranged on the machine body directly below the pressing position, and the lifting driver is used to drive the sliding table to drive the supporting mechanism to move upward.

[0024] With the above technical solution, the height of the supporting mechanism is adjusted to ensure the accurate relative position between the hub and the pressing mechanism, so that the bolts can be correctly pressed into the assembly holes of the hub, and it can also adapt to the hub pressing operations of different specifications.

[0025] The present invention also provides a method for assembling a vehicle axle hub, including the following steps:

[0026] First step, position the hub. Place the hub on the tray and position the hub through the positioning member.

[0027] Second step, feeding and filling. The feeder conveys the bolts along the storage rack to the feeding hole. The bolts entering the feeding hole fall into the positioning holes of the filling ring and are clamped and fixed by the clamps in the positioning holes. The rotation 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 feeding hole of the storage rack to fill the positioning holes at different positions.

[0028] Third step, press the bolts. The pressing driver drives the pressing head to move downwards to press the bolts stored in the filling ring into the assembly holes of the hub.

[0029] With the above technical solution, the automatic feeding, automatic filling and automatic pressing of the bolts are realized. And 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 hub, guaranteeing the precise alignment of the bolts, and improving the consistency of the assembly efficiency, assembly precision and assembly quality.

[0030] The beneficial effects of the vehicle axle hub assembly device and method provided by the present invention are as follows: A supporting mechanism, a filling mechanism, a feeding mechanism and a pressing mechanism are arranged on the machine body. When assembling the bolts onto the hub, first position the hub through the supporting mechanism, then convey the bolts to the filling mechanism through the feeding mechanism, and through the cooperation between the feeding mechanism and the filling mechanism, fill the bolts into the positioning holes of the filling ring one by one. Subsequently, press the bolts stored in the filling ring into the assembly holes of the hub through the pressing mechanism, thereby realizing the automatic feeding, 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 pressing mechanism, it is ensured that the notch of each bolt is aligned with the assembly wall of the hub, guaranteeing the precise alignment of the bolts, and improving the consistency of the assembly efficiency, assembly precision and assembly quality. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the vehicle axle hub assembly device of the present invention.

[0032] Figure 2 is a schematic structural diagram of the supporting mechanism and the sliding table of the vehicle axle hub assembly device of the present invention.

[0033] Figure 3 It is a schematic structural diagram of the filling mechanism of the axle hub assembly device of the present invention.

[0034] Figure 4 is Figure 3 The enlarged view of part A in

[0035] Figure 5 It is a cross-sectional view of the fixture of the axle hub assembly device of the present invention.

[0036] Figure 6 It is a schematic structural diagram of the feeding mechanism of the axle hub assembly device of the present invention.

[0037] Figure 7 It is a schematic structural diagram of the pressing mechanism of the axle hub assembly device of the present invention.

[0038] Figure 8 It is a schematic structural diagram of the hub.

[0039] Reference numerals:

[0040] 10, body; 110, fixing plate; 20, supporting mechanism; 210, tray; 220, positioning pin; 30, filling mechanism; 310, filling ring; 311, positioning hole; 320, central column; 330, rotating driver; 331, driven gear; 332, driving gear; 333, motor; 340, fixture; 341, clamping block; 342, clamping elastic member; 40, feeding mechanism; 410, storage rack; 411, feeding hole; 50, pressing mechanism; 510, pressing head; 520, pressing driver; 530, mounting plate; 540, limiting plate; 60, sliding table; 610, adjusting spring; 70, controller; 80, bolt; 90, hub; 910, assembly hole; 920, assembly wall. Detailed Description of the Invention

[0041] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] As Figures 1 to 8 shown, an embodiment of the axle hub assembly device of the present invention is used to press-fit the bolt 80 into the assembly hole 910 of the hub 90 and align the notch of the bolt 80 with the assembly wall 920 of the hub 90, and includes a body 10, a supporting mechanism 20, a filling mechanism 30, a feeding mechanism 40, a pressing mechanism 50, a sliding table 60, a lifting driver and a controller 70. The pressing mechanism 50, the filling mechanism 30, the supporting mechanism 20, the sliding table 60 and the lifting driver are arranged on the body 10 from top to bottom in sequence. The feeding mechanism 40 is located beside the filling mechanism 30, and the controller 70 is arranged beside the body 10.

[0043] Among them, the supporting mechanism 20 is used to place the wheel hub 90, the feeding mechanism 40 is used to convey the bolts 80 to the filling mechanism 30, the filling mechanism 30 is used to store the bolts 80 that have been fed and are waiting to be press-fitted, the pressing mechanism 50 is used to press-fit the bolts 80, the sliding table 60 is used to make the supporting mechanism 20 with the wheel hub 90 placed thereon enter or exit the press-fitting position, the lifting driver is used to drive the sliding table 60 to drive the supporting mechanism 20 to move upward, and the controller 70 is used to operate and monitor the entire press-fitting process to ensure the accuracy and safety of the press-fitting.

[0044] As Figure 1 and Figure 2 shown, the sliding table 60 is movably assembled on the machine body 10, and the supporting mechanism 20 is arranged on the sliding table 60. The lower end of the sliding table 60 has a handle, allowing the staff to hold the handle to push or pull the sliding table 60, so as to drive the supporting mechanism 20 with the wheel hub 90 placed thereon to enter or exit the press-fitting position, facilitating the quick replacement of the wheel hub 90. The upper surface of the sliding table 60 has positioning posts, and the outer side wall of the positioning posts is provided with limiting grooves 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 central plate fixed on the upper surface of the positioning post and a retaining ring located outside the central plate and sleeved on the positioning post and moving up and down. The retaining ring has a limiting block that slidably cooperates with the limiting groove, so that the retaining ring can move up and down relative to the sliding table 60 and restricts the rotation of the retaining ring relative to the sliding table 60. An adjusting spring 610 is connected between the retaining ring and the sliding table 60. The positioning member includes positioning pins 220 that correspond one-to-one with the assembly holes 910 of the wheel hub 90 and are used to insert into the assembly holes 910, and the positioning pins 220 are fixed on the upper surface of the retaining ring. The adjusting spring 610 is used to apply an upward pressure to the positioning pins 220 to abut against the bolts 80, so that the positioning pins 220 cooperate with the pressing head 510 to support the bolts 80 and ensure that the bolts 80 enter the assembly holes 910 perpendicular to the surface of the wheel hub 90, thereby ensuring the accurate alignment of the bolts 80.

[0045] The lifting driver is a hydraulic cylinder and is located directly below the press-fitting position. The output shaft of the lifting driver can abut against the lower surface of the sliding table 60 to push the sliding table 60 to drive the supporting mechanism 20 to move upward, thereby adjusting the height of the supporting mechanism 20, ensuring the accurate relative position between the wheel hub 90 and the pressing mechanism 50, enabling the bolts 80 to be correctly pressed into the assembly holes 910 of the wheel hub 90, and also being able to adapt to the press-fitting operations of different specifications of wheel hubs 90. In other embodiments, the lifting driver can also be a cylinder or an electric push rod.

[0046] As Figure 1 、 Figure 3 and Figure 6As 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. On the side of the storage rack 410 away from the feeding hole 411, a feeding channel is formed. The feeding channel has a T-shaped chamber for placing the bolts 80, so that the bolts 80 can be conveyed in a specified order and direction. In the embodiment, the feeder is a vibrating disk, 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.

[0047] As Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the filling mechanism 30 includes a filling ring 310, a central column 320 sleeved inside the filling ring 310, a rotary driver 330 for driving the filling ring 310 to rotate around the central axis of the central column 320, and a clamp 340 provided on the filling ring 310.

[0048] In the embodiment, the body 10 has a fixing plate 110 for installing the filling mechanism 30. The filling ring 310 is rotatably installed on the fixing plate 110, and the central column 320 is fixedly installed on the fixing plate 110. In other embodiments, the central column 320 can also be fixedly connected to the filling ring 310 and rotate synchronously around the central axis of the central column 320. The filling ring 310 has positioning holes 311 corresponding one-to-one to the assembly holes 910 of the hub 90. The outer sidewall of the central column 320 corresponds to the assembly wall 920 of the hub 90 up and down. The clamp 340 corresponds one-to-one to the positioning holes 311 and is arranged in the positioning holes 311 for clamping the bolts 80.

[0049] The feeding hole 411 of the storage rack 410 corresponds to one of the positioning holes 311 of the filling ring 310. The feeding hole 411 is located above the positioning hole 311 and the side close to the central column 320 is in contact with the outer sidewall of the central column 320. Thus, when the feeder pushes the bolt 80 along the feeding channel to the feeding hole 411, the notch of the bolt 80 is aligned with the outer sidewall of the central column 320, which can ensure that the bolt 80 entering the feeding 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 conveyed by the feeding mechanism 40 is accurately aligned with the receiving position of the filling mechanism 30, and improving the assembly accuracy and assembly efficiency.

[0050] The fixture 340 includes a clamping block 341 movably assembled in the positioning hole 311 along the radial direction of the positioning hole 311, and a clamping elastic member 342 connected between the filling ring 310 and the clamping block 341. In the embodiment, three clamping blocks 341 are arranged along the circumferential direction of the positioning hole 311, and the clamping elastic member 342 is an elastic telescopic rod for applying an elastic force to the clamping block 341 to make the clamping block 341 approach the bolt 80 so as to clamp the bolt 80. The upper end of the clamping block 341 has an inclined surface that slopes downward from the hole wall of the positioning hole 311 towards the bolt 80 for abutting against the nut of the bolt 80, so that after the bolt 80 is subjected to the pressure of the pressing mechanism 50 from top to bottom, the inclined surface at the upper end of the clamping block 341 can be pushed over the clamping block 341, thus preventing the nut of the bolt 80 from being stuck with the clamping block 341. In other embodiments, the clamping elastic member 342 can also be a spring.

[0051] The rotary driver 330 includes a driven gear 331 arranged on the outer peripheral side of the filling ring 310, a driving gear 332 meshing with the driven gear 331, and a motor 333 for driving the driving gear 332 to rotate. The motor 333 is fixedly installed on the fixing 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 feeding hole 411 of the storage rack 410, and the positioning holes 311 at different positions can be filled until all the positioning holes 311 on the filling ring 310 are filled one by one, thereby realizing automatic filling.

[0052] As Figure 1 、 Figure 3 and Figure 7 shown, the pressing mechanism 50 includes a pressing head 510, a pressing driver 520, a mounting disc 530 and a limiting disc 540. The pressing driver 520 is a hydraulic cylinder and is fixedly installed on the machine body 10. The mounting disc 530 is fixed to the output end of the pressing driver 520. The limiting disc 540 is fixed at the central position at the lower end of the mounting disc 530 through a connecting shaft and extends into the central column 320 to ensure that the mounting disc 530 is aligned with the central axis of the central column 320 when moving up and down, thereby improving the stability of the equipment. The pressing heads 510 correspond one by one to the fitting holes 910 of the hub 90 and are fixed to the lower end of the mounting disc 530 along the circumferential direction of the mounting disc 530. Among the pressing heads 510, the height of the pressing head 510 corresponding to the feeding hole 411 is less than the height of the other pressing heads 510, and the height difference is the height of the bolt 80. In other embodiments, the pressing driver 520 can also be a cylinder or an electric push rod.

[0053] When pressing the bolt 80, the lifting driver first drives the supporting mechanism 20 to move upward, so that the upper surface of the wheel hub 90 abuts against the lower surface of the central column 320. Then, the pressing driver 520 drives each pressing head 510 to move downward. 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 bolts 80 in the positioning holes 311 and directly push the bolts 80 in the positioning holes 311 downward. After that, 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 adjusting spring 610 is compressed and gives the positioning pin 220 an upward pressure against the bolt 80, so that the positioning pin 220 cooperates with the pressing 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, thus ensuring the accurate alignment of the bolt 80. Finally, each pressing head 510 presses the bolt 80 filled in the filling ring 310 into the assembly hole 910 of the wheel hub 90. At the same time, the pressing head 510 corresponding to the feeding hole 411 pushes the bolt 80 in the feeding hole 411 into the lower positioning hole 311. While completing the pressing of the bolt 80 for the current wheel hub 90, the first bolt 80 of the next wheel hub 90 to be assembled is filled, effectively improving the assembly efficiency.

[0054] An embodiment of the axle wheel hub assembly method of the present invention includes the following steps:

[0055] The first step is to position the wheel hub 90. Place the wheel hub 90 on the tray 210 and position the wheel hub 90 through the positioning member.

[0056] The second step is feeding and filling. The feeder conveys the bolt 80 along the storage rack 410 to the feeding hole 411. The bolt 80 entering the feeding hole 411 drops 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 rotating 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 feeding hole 411 of the storage rack 410 to fill the positioning holes 311 at different positions.

[0057] The third step is to press the bolt 80. The pressing driver 520 drives the pressing head 510 to move downward and presses the bolt 80 stored in the filling ring 310 into the assembly hole 910 of the wheel hub 90.

[0058] Accordingly, 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 assembling the bolt 80 onto the wheel hub 90, first, the wheel hub 90 is positioned by the supporting mechanism 20, then the bolt 80 is conveyed to the filling mechanism 30 by the feeding mechanism 40, and through the cooperation of the feeding mechanism 40 and the filling mechanism 30, the bolts 80 are filled one by one into the positioning holes 311 of the filling ring 310. Subsequently, 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 the automatic feeding, automatic filling, and automatic pressing of the bolts 80. Moreover, 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, guaranteeing the precise alignment of the bolts 80 and improving the consistency of the assembly efficiency, assembly precision, and assembly quality.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0060] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as a limitation to the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An axle hub assembly device, comprising a machine body, characterized in that, The machine body is provided with: a supporting mechanism, which includes 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 spaced above the supporting mechanism and is used for storing bolts to be press-fitted during feeding. The filling mechanism includes a filling ring, a central column sleeved inside the filling ring, and a rotary driver for driving the filling ring to rotate around the central column. The filling ring has positioning holes corresponding one by one to the assembly holes of the wheel hub, and clamps for clamping the bolts are arranged in the positioning holes. The outer side wall of the central column corresponds up and down to the assembly wall of the wheel hub; a feeding mechanism, which is located beside the filling mechanism and is used for conveying 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 the side close to the central column is connected to the outer side wall of the central column; a pressing mechanism, which is spaced above the filling mechanism and is used for pressing the bolts stored in the filling ring into the assembly holes of the wheel hub. The pressing mechanism includes a pressing head corresponding one by one to the assembly hole of the wheel hub and a pressing driver for driving the pressing head to move up and down; The clamp includes a clamping block movably assembled in the positioning hole along the radial direction of the positioning hole and a clamping elastic member connected between the filling ring and the clamping block. The clamping elastic member is used for applying an elastic force to the clamping block to make the clamping block approach the bolt so as to clamp the bolt; The upper end of the clamping block has an inclined surface that slopes downward from the hole wall of the positioning hole towards the bolt and is used for abutting against the nut of the bolt.

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

3. The axle hub assembly device according to claim 1, characterized in that, Among the pressing heads, the height of the pressing head corresponding to the feeding hole is less than the height of the other pressing heads, and the height difference is the height of the bolt.

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

5. The axle hub assembly device according to claim 1, characterized in that, A sliding table is further arranged on the machine body, and the supporting mechanism is arranged on the sliding table. The sliding table is used for making the supporting mechanism with the wheel hub placed thereon enter or exit the press-fitting position.

6. The axle hub assembly device according to claim 5, characterized in that, The tray includes a central disk fixed on the sliding table and a supporting ring movably assembled up and down on the sliding table. The positioning member includes positioning pins corresponding one by one to the assembly holes of the wheel hub and used for inserting into the assembly holes. The positioning pins are fixed on the upper surface of the supporting ring, and an adjusting spring is connected between the supporting ring and the sliding table.

7. A vehicle axle hub assembly device according to claim 6, characterized in that, A lifting driver is further arranged on the machine body and located directly below the press-fitting position. The lifting driver is used for driving the sliding table to drive the supporting mechanism to move upward.

8. A method for assembling a vehicle axle hub, characterized in that, Using the axle hub assembly device described in claim 1, the following steps are included: The first step is to position the wheel hub. Place the wheel hub on the tray and position the wheel hub through the positioning member; The second step is feeding and filling. The feeder conveys the bolts along the storage rack to the feeding hole. The bolts entering the feeding hole fall into the positioning holes of the filling ring and are clamped and fixed by the clamps in the positioning holes. 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 feeding hole of the storage rack, so as to fill the positioning holes at different positions; Step 3: Press-fit the bolt. The pressing driver drives the press head to move downward, and presses the bolt stored in the packing ring into the assembly hole of the hub.

Images