Hub bolt press fitting device

Abstract

The utility model provides a hub bolt press-fitting device which comprises a workbench, two semi-annular supporting seats are arranged on the workbench, the two supporting seats can draw close to each other to form a ring shape, open holes are formed in the supporting seats, bolts can be pressed into the open holes, and electric telescopic rods used for driving the supporting seats to move are arranged on the workbench. A penetrating hole is formed in the top of the workbench, a push plate located between the two supporting seats is arranged above the penetrating hole, and a first hydraulic rod used for driving the push plate to ascend and descend is arranged below the workbench. A pressure applying assembly used for pressing the bolt into the hub is arranged above the workbench. According to the hub machining device, a worker does not need to manually take down a hub from a supporting base, the hub taking-down process is simple and rapid, the hub discharging and feeding efficiency is improved, the hub machining efficiency is also improved, and the labor burden of the worker is relieved.

Description

Technical Field

[0001] This utility model relates to the field of press-fitting device technology, and in particular to a wheel hub bolt press-fitting device. Background Technology

[0002] When installing the bolts on the wheel hub, a press-fitting device is usually used to apply pressure to the bolts and press them in, so that the bolts and the wheel hub have an interference fit, which improves the tightness of the connection between the wheel hub and the bolts.

[0003] For example, Chinese patent application number CN202420410578.3 discloses an automated device for pressing wheel hub bolts, which relates to the technical field. The device includes a support base, with a wheel hub body stably attached to its top. The top of the wheel hub body has an opening for a portion of the bolt body to extend into. A pressure-applying mechanism is located above the wheel hub body to press the other portion of the bolt body into the opening. The support base has a detector for sensing the position of the output end of the pressure-applying mechanism after the bolt body is pressed down. The opening extends downwards and is embedded at the top of the support base. The pressure-applying mechanism is fixed to a bracket. A controller is fixed to the outside of the bracket, and a base frame is fixed to the bottom of the support base and the bracket. The advantages of this invention are: by pressing down the bolt body through the pressure-applying mechanism, the detector on the support base senses the position of the output end of the pressure-applying mechanism after the bolt body is pressed down, thus indicating the magnitude of the bolt body's downward pressure and facilitating control of the pressing accuracy.

[0004] Although the aforementioned equipment can press the bolts into the openings on the wheel hub, the support base also has corresponding openings on the wheel hub (and the openings extend downwards from the top of the support base 1). Therefore, the bolts will also be pressed into the openings on the support base. As a result, when the bolts on the wheel hub are pressed in and the wheel hub needs to be moved, it is inconvenient for the staff to remove the wheel hub from the support base. Furthermore, the process of removing the wheel hub is time-consuming and labor-intensive, increasing the workload of the staff. Utility Model Content

[0005] This utility model discloses a wheel hub bolt pressing device, which solves the problem of inconvenience for workers to remove the wheel hub from the support.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A wheel hub bolt pressing device includes a worktable with two semi-circular support seats that can be brought together to form a ring. The support seats have openings for pressing bolts into them. An electric telescopic rod for driving the support seats to move is provided on the worktable. A through hole is provided at the top of the worktable, and a push plate is located between the two support seats above the through hole. A hydraulic rod for driving the push plate to rise and fall is provided below the worktable. A pressure-applying component for pressing bolts into the wheel hub is provided above the worktable.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] After the two support seats come together to form a ring, they cooperate to support the wheel hub. Then, the bolt is placed in the opening on the wheel hub, and the pressure-applying component is activated to press the bolt into the opening on the wheel hub. Simultaneously, the bottom end of the bolt also enters the opening on the support seat. Once the bolt is fully pressed into the wheel hub, the pressure-applying component returns to its original position, and the first hydraulic rod drives the push plate upward, applying an upward thrust to the wheel hub. This causes the portion of the bolt located in the opening on the support seat to move upward with the wheel hub. After the bolt moves out of the opening on the support seat, the push plate supports the wheel hub. The two support seats are moved away from each other, and then the telescopic end of the first hydraulic rod drives the push plate to move downward, so that the hub passes through the hole on the worktable and moves to the bottom of the worktable, completing the transfer of the hub. Then, the worker places another hub to be bolted on the two support seats and repeats the above operation to start pressing the bolts on the next hub. This utility model eliminates the need for workers to manually remove the hub from the support seats. The hub removal process is simple and fast, improving the efficiency of hub unloading and loading, as well as the processing efficiency of hubs, and reducing the workload of workers. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model from the front cross-section.

[0011] In the diagram: 1. Workbench; 2. Support base; 21. Opening; 3. Electric telescopic rod; 4. Push plate; 41. Hydraulic rod No. 1; 42. Circular plate; 43. Hydraulic rod No. 2; 44. Rubber cylinder; 5. Motor; 51. Lead screw; 52. Moving plate; 6. Top plate; 61. Hydraulic rod No. 3; 7. Lifting plate; 71. Connecting rod; 72. Pressure ring; 8. Support rod; 9. Moving outrigger. Detailed Implementation

[0012] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1As shown, this utility model provides a wheel hub bolt pressing device, including a workbench 1, on which are provided two semi-circular support seats 2, which can be brought together to form a ring. The support seats 2 have openings 21 for pressing bolts in. The workbench 1 is provided with an electric telescopic rod 3 for driving the support seats 2 to move. A through hole is provided on the top of the workbench 1, and a push plate 4 is provided above the through hole between the two support seats 2. A first hydraulic rod 41 for driving the push plate 4 to rise and fall is provided below the workbench 1. A pressure application component for pressing bolts into the wheel hub is provided above the workbench 1. There are two electric telescopic rods 3, symmetrically distributed left and right. The telescopic ends of the two electric telescopic rods 3 are connected to the outer ring surfaces of the two support seats 2 respectively. After the two electric telescopic rods 3 are activated, the two support seats 2 are brought together to form a ring. The operator places the wheel hub on the two support seats 2, then places the bolt in the opening on the wheel hub, and then activates the pressure-applying component to apply pressure to the bolt, pressing the bolt into the opening on the wheel hub. When the bolt is pressed into the opening on the wheel hub, the bottom end of the bolt is also located in the opening 21 on the support seat 2. At this time, the first hydraulic rod 41 is activated to move the push plate 4 upward. At the same time, the pressure-applying component stops applying pressure to the bolt and returns to its original position. The push plate 4 then pushes the wheel hub upward, causing the bottom end of the bolt pressed into the wheel hub to move out of the opening 21 on the support seat 2. The bottom end of the bolt is positioned above the support 2. Then, the two electric telescopic rods 3 are activated to move the two support 2 away from each other, opening the perforation on the worktable 1. Subsequently, the telescopic end of the first hydraulic rod 41 (the first hydraulic rod 41 is a three-section telescopic rod) drives the push plate 4 to move downward, allowing the hub to pass through the perforation on the worktable 1 and move to the bottom of the worktable 1, completing the material removal and transfer of the hub. Then, the operator can repeat the above operation to continue the press-fitting of the bolt on the next hub. The two support 2 are also equipped with the same detector, compression groove, elastic element, compression rod, universal ball and ball groove as in the comparative document (these structures are not shown in the figure). The worktable 1 is equipped with a controller (not shown in the figure). The above structures are existing technology and will not be described in detail here.

[0014] like Figure 1As shown, the telescopic end of the first hydraulic rod 41 is fixed with a circular plate 42 located in the through hole of the workbench 1. The top of the circular plate 42 is in contact with the bottom of the two support seats 2 forming an annular shape. The top of the circular plate 42 is fixed with a second hydraulic rod 43. The telescopic end of the second hydraulic rod 43 is fixed with the bottom of the push plate 4. When the first hydraulic rod 41 is activated to position the circular plate 42 within the through hole of the worktable 1, the circular plate 42 can hold the bottom of the two support seats 2 forming a ring, thereby increasing the stability of the support seats 2 when the pressure application component is pressing the bolts. After the bolts on the hub are pressed, the second hydraulic rod 43 can be activated to move the push plate 4 upward, pushing the hub located between the two support seats 2 upward, causing the hub to move the bolts out of the opening 21 on the support seat 2, completing the removal of the hub. Then, the first hydraulic rod 41 drives the circular plate 42 downward, causing the hub to pass through the through hole on the worktable 1 and move to below the worktable 1, completing the transfer of the hub, so that the operator can quickly begin placing and pressing the bolts on another hub.

[0015] like Figure 1 As shown, the top of the push plate 4 has a recessed hole for the bottom end of the wheel hub to enter, and a rubber cylinder 44 is fixed inside the recessed hole. The recessed hole allows the wheel hub to enter from the position between the two support seats 2, thereby increasing the stability of the wheel hub on the push plate 4. Furthermore, the rubber cylinder 44 protects the wheel hub and increases the friction between the wheel hub and the inner wall of the recessed hole, further increasing the stability of the wheel hub.

[0016] like Figure 1 As shown, a motor 5 is fixed on a support leg on one side of the workbench 1, a lead screw 51 is fixed on the shaft of the motor 5, a movable plate 52 is threaded onto the lead screw 51, and the fixed end of the first hydraulic rod 41 is fixed on the movable plate 52; there are two first hydraulic rods 41, which are distributed left and right and both are fixed on the movable plate 52. The motor 5 is a servo motor. The bottom of the worktable 1 is fixed with two sets of symmetrical support legs. Each set has two support legs. The lead screw 51 is rotatably connected between one set of support legs. The other set of support legs is fixed with a limiting rod (not shown in the figure) that is slidably connected to the moving plate 52. After the motor 5 is started and the lead screw 51 is rotated, the moving plate 52 can be moved laterally. When the hub on the push plate 4 moves to the bottom of the worktable 1, the moving plate 52 can be moved laterally so that the other push plate 4 can be moved to the bottom of the hole on the worktable 1. Then the push plate 4 moves upward so that it can pass through the hole and support the other hub to be processed, so that the hub can be unloaded laterally.

[0017] like Figure 1 As shown, a movable support leg 9 is fixed to the bottom of the movable plate 52. The movable support leg 9 increases the stability of the movable plate 52 when it moves.

[0018] like Figure 1 As shown, the pressure-applying assembly includes a top plate 6 positioned above the workbench 1. A third hydraulic rod 61 is fixed to the top plate 6. A lifting plate 7 is fixed to the telescopic end of the third hydraulic rod 61. A connecting rod 71 is fixed to the bottom of the lifting plate 7, and a pressure ring 72 is fixed to the bottom of the connecting rod 71. A support rod 8 is fixed between the top plate 6 and the workbench 1. Two sets of support rods 8 are provided, symmetrically distributed left and right. Each set contains two support rods 8. A support seat 2 is slidably connected to the workbench 1, and the support seat 2 can move between sets of support rods 8. Activating the third hydraulic rod 61 causes the lifting plate 7 to move downwards via the connecting rod 71, facilitating the pressing of the bolts.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wheel bolt press fitting device comprising a worktable, characterized by: The workbench is equipped with two semi-circular support seats that can be brought together to form a ring. The support seats have openings for pressing in bolts. The workbench is equipped with an electric telescopic rod for driving the support seats to move. The top of the workbench has a through hole, and above the through hole is a push plate located between the two support seats. Below the workbench is a hydraulic rod for driving the push plate to rise and fall. Above the workbench is a pressure-applying component for pressing bolts into the wheel hub.

2. The wheel bolt press fitting device according to claim 1, characterized by: The telescopic end of the first hydraulic rod is fixed with a circular plate located inside the perforation of the workbench. The top of the circular plate contacts the bottom of the ring formed by the two support seats. The top of the circular plate is fixed with a second hydraulic rod, and the telescopic end of the second hydraulic rod is fixed with the bottom of the push plate.

3. The wheel bolt press fitting device according to claim 1, characterized in that: The top of the push plate has a recessed hole for the bottom end of the wheel hub to enter, and a rubber cylinder is fixed inside the recessed hole.

4. The wheel bolt press fitting device according to claim 1, characterized by: A motor is fixed on a support leg on one side of the workbench, a lead screw is fixed on the motor shaft, and a movable plate is threaded onto the lead screw. The fixed end of the first hydraulic rod is fixed on the movable plate. There are two first hydraulic rods, which are distributed left and right and both are fixed on the movable plate.

5. The wheel bolt press fitting device according to claim 4, characterized in that: The bottom of the movable plate is fixed with movable support legs.

6. The wheel bolt press fitting device according to claim 1, wherein: The pressure application assembly includes a top plate located above the workbench, a third hydraulic rod fixed to the top plate, a lifting plate fixed to the telescopic end of the third hydraulic rod, a connecting rod fixed to the bottom of the lifting plate, and a pressure ring fixed to the bottom of the connecting rod; a support rod is fixed between the top plate and the workbench.

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