Novel hub clamping mechanism

Abstract

The utility model relates to the technical field of hub manufacturing, and discloses a novel hub clamping mechanism which comprises a seat frame, two oppositely-arranged embracing arms are hinged to the seat frame, a push-pull air cylinder is arranged corresponding to the embracing arms, the tail end and the telescopic end of the push-pull air cylinder are hinged to the two embracing arms respectively, and the tail end of the push-pull air cylinder is hinged to the two embracing arms. Shaft holes are formed in the positions, corresponding to hinge points of the two embracing arms, of the seat frame, the two embracing arms are hinged into the corresponding shaft holes through rotating shafts respectively, synchronous gears are fixedly arranged on the two rotating shafts respectively, and the two synchronous gears are in meshing transmission. According to the utility model, the abrasion between parts is reduced, and the failure rate is reduced; meanwhile, compared with a traditional sliding translation movement mode, the action response speed of the embracing arms hinged to the seat frame is higher, and the operation efficiency is improved; due to the arrangement of the expansion sleeve, the expansion sleeve can slip under the accidental conditions of sudden collision, overload of holding force and the like, so that the connection effect is lost, the clamping mechanism and a hub product are prevented from being damaged by external force, and the safety of equipment and the product is ensured.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub manufacturing technology, and in particular to a novel wheel hub clamping mechanism. Background Technology

[0002] In the manufacturing process of aluminum alloy wheels, a clamping mechanism is often required to hold and move the wheel hub. Existing clamping mechanisms use two opposing clamping arms to grip the wheel hub and perform the moving operation. During clamping, the two clamping arms move in opposite directions under the push of two cylinders, and their synchronized movement is achieved through the meshing of a synchronous rack and pinion. However, in actual production, existing clamping mechanisms operate in high-temperature and high-humidity environments for extended periods. The frequent movement of the clamping arms, synchronous rack, and pinions makes them susceptible to mechanical failures such as skipped teeth and jamming due to corrosion and wear. This can lead to synchronization failure of the clamping arms or even the inability to perform the clamping action properly, affecting production progress. Furthermore, the existing clamping mechanism has a relatively complex structure, making maintenance inconvenient and increasing maintenance costs.

[0003] Therefore, developing a new type of wheel hub clamping mechanism with simple structure, low failure rate and easy maintenance for practical production is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of wheel hub clamping mechanism to address the above-mentioned problems, thereby solving the problems of high failure rate and inconvenient maintenance of existing wheel hub clamping mechanisms.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A novel wheel hub clamping mechanism includes a base frame with two opposing clamping arms hinged to it. A push-pull cylinder is provided corresponding to each clamping arm, with its tail end and extension end respectively hinged to the two clamping arms to provide power for the clamping or opening action of the clamping arms. The two clamping arms achieve synchronized action through a pair of meshing synchronous gears. The base frame has shaft holes at the hinge points corresponding to the two clamping arms, and the two clamping arms are respectively hinged to the corresponding shaft holes through rotating shafts. Synchronous gears are fixedly provided on the two rotating shafts, and the two synchronous gears mesh for transmission.

[0007] Preferably, the synchronizing gear is connected to the rotating shaft via a shrink sleeve. The outer diameter of the shrink sleeve corresponds to the mounting hole diameter of the synchronizing gear, and the inner diameter of the shrink sleeve corresponds to the diameter of the rotating shaft, so that the shrink sleeve is shrunk between the rotating shaft and the mounting hole of the synchronizing gear.

[0008] Preferably, a limiting screw is provided on the seat frame corresponding to the arm to limit the extreme position of the arm opening action, and a screw hole is provided on the seat frame corresponding to the arm, and the limiting screw is screwed into and passes through the screw hole.

[0009] Preferably, the clamping arm includes a detachably connected upper arm and a lower arm. The upper arm is hinged to a mounting bracket. The tail end and telescopic end of the push-pull cylinder are respectively hinged to the upper arm of the two clamping arms. The lower arm is configured to correspond to the outer diameter of the wheel hub and is used to clamp the wheel hub.

[0010] Preferably, the front end of the forearm is provided with a gripper, which is a long strip structure with a certain curvature, used to contact the wheel hub to be unloaded.

[0011] Preferably, the gripper is covered with a flexible buffer pad to prevent the gripper arm from damaging the appearance of the wheel hub during the gripping process.

[0012] Preferably, the gripper is hinged to the forearm so that the gripper has an adaptive angle adjustment function, thereby improving the gripping stability of the wheel hub to be unloaded.

[0013] The beneficial effects of this utility model are as follows: This utility model eliminates the sliding translation of two gripping arms in the traditional clamping mechanism and achieves synchronized action through a synchronous rack and pinion, reducing wear between components and lowering the failure rate; at the same time, the gripping arms of the hinged frame have a faster action response speed than the traditional sliding translation movement method, improving work efficiency; the setting of the tensioning sleeve ensures that in the event of a sudden collision or overload of clamping force during the gripping arm movement, the tensioning sleeve will slip and lose its connection function, protecting the clamping mechanism and wheel hub products from external force damage and ensuring the safety of the equipment and products; the hinged forearm of the gripper gives the gripper an adaptive angle adjustment function, improving the clamping stability of the wheel hub to be unloaded; the gripper is covered with a flexible buffer pad to prevent the gripping arms from damaging the appearance of the wheel hub during the clamping process. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a top view of the structure of this utility model.

[0016] Figure 2 for Figure 1 Front view after hiding the forearm.

[0017] In the diagram: 10--Seat frame; 11--Limit screw; 20--Holding arm; 21--Push-pull cylinder; 22--Synchronous gear; 23--Rotating shaft; 24--Expansion sleeve; 25--Up arm; 26--Forearm; 27--Gripper; 28--Flexible buffer pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figure 1-2 As shown, a novel wheel hub clamping mechanism includes a base 10, on which two opposing clamping arms 20 are hinged. A push-pull cylinder 21 is provided corresponding to each clamping arm 20, with its tail end and extension end respectively hinged to the two clamping arms 20 to provide power for the clamping or opening action of the clamping arms 20. The two clamping arms 20 achieve synchronized action through a pair of meshing synchronous gears 22. Specifically, shaft holes are respectively provided on the base 10 corresponding to the hinge points of the two clamping arms 20. The two clamping arms 20 are respectively hinged to the corresponding shaft holes via rotating shafts 23. Synchronous gears 22 are fixedly provided on the two rotating shafts 23, and the two synchronous gears 22 mesh for transmission.

[0020] In use, the two clamping arms 20 are initially in an open state. Once the wheel hub to be moved is in place, the extension end of the push-pull cylinder 21 retracts, pulling the two clamping arms 20 to swing towards each other around the rotating shaft 23, performing a clamping action on the wheel hub. At this time, under the action of the meshing transmission of the two synchronous gears 22, the two clamping arms 20 maintain synchronous swinging motion. After clamping the wheel hub to the designated position, the extension end of the push-pull cylinder 21 extends, pushing the two clamping arms 20 to open synchronously and release the wheel hub, completing the wheel hub relocation operation. This embodiment eliminates the sliding translation of the two clamping arms 20 in the traditional clamping mechanism and achieves synchronous action through synchronous racks and gears. This reduces wear between components and lowers the failure rate. At the same time, compared with the traditional sliding translation movement, the clamping arms 20 of the hinged frame 10 have a faster action response speed, improving work efficiency.

[0021] Preferably, the synchronizing gear 22 is connected to the rotating shaft 23 via a shrink sleeve 24. The outer diameter of the shrink sleeve 24 corresponds to the mounting hole diameter of the synchronizing gear 22, and the inner diameter of the shrink sleeve 24 corresponds to the diameter of the rotating shaft 23. This allows the shrink sleeve 24 to be tightened between the mounting hole of the rotating shaft 23 and the synchronizing gear 22, achieving a transmission connection between the synchronizing gear 22 and the rotating shaft 23 through friction. During the operation of the clamping arm 20, in the event of a sudden collision, overload of the clamping force, or other unexpected situations, the shrink sleeve 24 will slip, thus losing its connection function. This protects the clamping mechanism and the wheel hub from external damage, ensuring the safety of the equipment and the product.

[0022] The base 10 is provided with a limiting screw 11 corresponding to the arm 20 to limit the extreme position of the arm 20's opening action. Specifically, the base 10 has a screw hole corresponding to the arm 20, and the limiting screw 11 is screwed into and passes through the screw hole. By rotating the limiting screw 11, its extension height can be adjusted to limit the opening angle of the arm 20, thus ensuring equipment safety.

[0023] The clamping arm 20 includes a large arm 25 and a small arm 26, which are detachably connected. The large arm 25 is hinged to the seat 10. The tail end and telescopic end of the push-pull cylinder 21 are respectively hinged to the large arm 25 of the two clamping arms 20, providing power for the clamping action of the clamping arm 20. The small arm 26 is set according to the outer diameter of the wheel hub and is used to clamp the wheel hub. In this embodiment, the clamping arm 20 is set as a split and detachable structure, which facilitates the individual disassembly and replacement of vulnerable parts. At the same time, the small arm 26 of the corresponding specification can be configured according to the wheel hub size to be reversed. Different small arms 26 can be adapted to different wheel hub sizes to complete the clamping and reversing actions, ensuring the stability of wheel hub clamping and improving the applicability of this utility model.

[0024] The forearm 26 has a gripper 27 at its front end. The gripper 27 is an elongated structure with a certain curvature, used to contact the wheel hub to be unloaded. Preferably, the gripper 27 is covered with a flexible buffer layer 28 to prevent the gripping arm 20 from damaging the appearance of the wheel hub during the clamping process. The flexible buffer layer 28 can be made of flexible materials such as rubber or polyurethane.

[0025] Furthermore, the gripper 27 is hinged to the forearm 26 so that the gripper 27 has an adaptive angle adjustment function, thereby improving the gripping stability of the wheel hub to be unloaded.

[0026] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A novel wheel hub clamping mechanism characterized by: The utility model provides a wheel hub carrying device, including seat frame (10), two relative arrangement's embrace arm (20) are hinged on seat frame (10), correspond to embrace arm (20) and are provided with push -and -pull cylinder (21), and the tail end and telescopic end of push -and -pull cylinder (21) are hinged on two embrace arm (20) respectively, and the axle hole is set up respectively in seat frame (10) corresponding the hinge joint of two embrace arm (20), and two embrace arm (20) are hinged in corresponding axle hole through pivot (23) respectively, and synchronous gear (22) is fixedly set up on two pivot (23) respectively, and two synchronous gear (22) meshing drive.

2. A new hub clamping mechanism as claimed in claim 1, wherein: The synchronous gear (22) is connected with the pivot (23) through the expansion sleeve (24), the outer diameter of the expansion sleeve (24) corresponds to the installation hole diameter of the synchronous gear (22), the inner diameter of the expansion sleeve (24) corresponds to the diameter of the pivot (23), and the expansion sleeve (24) is expanded and tightened between the pivot (23) and the installation hole of the synchronous gear (22).

3. A new hub clamping mechanism as claimed in claim 1, wherein: The seat frame (10) is provided with a limiting screw (11) corresponding to the embrace arm (20) for limiting the limit position of the opening action of the embrace arm (20), and the seat frame (10) is provided with a screw hole corresponding to the embrace arm (20), and the limiting screw (11) is screwed and penetrates the screw hole.

4. A new hub clamping mechanism as claimed in claim 1, wherein: The embrace arm (20) includes a large arm (25) and a small arm (26) connected detachably, the large arm (25) is hinged to the seat frame (10), the tail end and the telescopic end of the push -and -pull cylinder (21) are hinged to the large arm (25) of two embrace arms (20) respectively, and the small arm (26) corresponds to the outer diameter of the hub for clamping the hub.

5. A novel hub clamping mechanism as claimed in claim 4, wherein: The front end of the small arm (26) is provided with a clamping jaw (27), and the clamping jaw (27) is a long strip structure with a certain arc, which is used for contacting the wheel hub to be transported.

6. A novel hub clamping mechanism as claimed in claim 5, wherein: The clamping jaw (27) is covered with a flexible buffer pad (28) to avoid damage to the appearance of the hub during clamping.

7. A new hub clamping mechanism as claimed in claim 5, wherein: The clamping jaw (27) is hinged to the small arm (26) to make the clamping jaw (27) have a self-adapting angle adjusting function.

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