Universal double-hub clamp
By designing a universal dual-hub clamp, which employs two sets of clamping components and a synchronization mechanism, the problems of low clamping efficiency and poor adaptability of existing clamps are solved, achieving efficient and low-cost wheel hub clamping and handling, and avoiding wheel hub damage.
Patent Information
- Application Number
- CN202520504347.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing aluminum alloy automotive wheel hub clamps have low clamping efficiency, poor adaptability, cumbersome adjustment, are prone to damaging the wheel hub, and increase the difficulty of tooling design and management.
A universal dual-hub clamp is designed, which uses two sets of spaced-apart clamping components. A power unit drives a sliding beam to move the clamping components closer to or further away. A synchronization mechanism is provided to ensure the synchronous movement of the clamping components. The gripper wheels are made of nylon or polyurethane to reduce the risk of wheel hub scratches.
It enables universal clamping of wheel hubs of different sizes, improves clamping and operation efficiency, reduces fixture design costs and management difficulty, and avoids wheel hub eccentric clamping and scratches.
Smart Images

Figure CN223973387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum alloy wheel hub manufacturing technology, and in particular to a universal double wheel hub clamp. Background Technology
[0002] When aluminum alloy automotive wheels move between different processes on a production line, they typically require clamping and handling operations to ensure continuous and stable operation. With increasing automation, wheel gripping and handling are increasingly handled by automated robots. These robots are equipped with wheel grippers that automatically perform these operations. However, existing wheel grippers are usually single-gripper or simple multi-gripper structures, which suffer from low gripping efficiency, poor adaptability, and susceptibility to wheel damage. When gripping wheels of different sizes, existing grippers often require cumbersome adjustments or even replacement, severely impacting production efficiency and automation. Furthermore, manufacturing custom grippers for different wheel sizes increases tooling design and manufacturing costs and results in a large accumulation of spare grippers on the production floor, complicating tooling management.
[0003] Therefore, developing a universal double-hub fixture for practical production is an urgent problem to be solved. Utility Model Content
[0004] The purpose of this utility model is to provide a universal double wheel hub clamp to address the above-mentioned problems, such as low clamping efficiency, poor adaptability, cumbersome adjustment, and easy damage to the wheel hub in the use of existing wheel hub clamps.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A universal dual-hub clamp includes a frame with two clamping units. Each clamping unit includes two sets of clamping assemblies spaced apart and slidably connected to the frame. The spacing between the two sets of clamping assemblies corresponds to the radial dimension of the wheel hub. Each clamping assembly includes a sliding beam slidably connected to the frame. Two spaced clamping arms are vertically connected to the sliding beam. The clamping assembly is driven by a power device, which is fixedly connected to the frame. The output end of the power device is connected to the sliding beam, which can drive the sliding beam to reciprocate on the frame, thereby causing the two sets of clamping assemblies to move closer to or further away from the wheel hub to release it.
[0007] Preferably, a robot connection plate is fixedly installed on the frame for connecting and fixing with the robot.
[0008] Preferably, the power unit is a cylinder or an electric actuator.
[0009] Preferably, the double-hub clamp further includes a synchronization mechanism, which includes a synchronization gear that rotates the connecting frame, with synchronization racks meshing on both sides of the synchronization gear, and sliding beams fixedly connected to the tail ends of the synchronization racks.
[0010] Preferably, the gripping assembly includes a gripper wheel disposed at a portion corresponding to the wheel hub rim, and the gripper wheel is rotatably connected to the bottom end of the gripping arm.
[0011] Preferably, the gripper wheel is made of nylon or polyurethane.
[0012] Preferably, the clamping arm is movably connected to the sliding beam, so that the spacing between the clamping arms on the same side is adjustable. The sliding beam has a groove in the extension direction, the clamping arm passes through the groove and is slidably connected to the groove, the clamping arm has an external thread, and the fastening nut is screwed onto the clamping arms on the upper and lower sides of the sliding beam respectively.
[0013] The beneficial effects of this utility model are as follows:
[0014] This invention features two sets of clamping components spaced apart and slidably connected to the frame. Driven by a power unit, these components can move closer to or further away from the wheel hub to clamp it. When clamping wheel hubs of different sizes, the clamping components move relative to each other at different strokes, thus meeting the clamping requirements of various sizes. This gives the invention a certain degree of versatility, eliminating the need for traditional molds that require separate fixtures for each type of wheel hub, reducing the design and manufacturing costs of fixtures and the difficulty of managing on-site tooling. Furthermore, this embodiment features two sets of clamping units on the frame, allowing for the simultaneous clamping and handling of two wheel hubs, improving work efficiency and overcoming the problems of poor applicability and low efficiency of traditional fixtures. The synchronization mechanism ensures the synchronous relative movement of the two sets of clamping components, guaranteeing uniform force during wheel hub clamping and avoiding eccentric clamping caused by differences in the stroke of the two sets of clamping components. Attached Figure Description
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a bottom view of the utility model in use.
[0018] Figure 3 for Figure 2 The left view.
[0019] Figure 4 This is a schematic diagram of the clamping unit of this utility model.
[0020] In the diagram: 10--Frame; 11--Robot connecting plate; 20--Gripping unit; 30--Gripping assembly; 31--Sliding beam; 311--Slide groove; 312--Fasting nut; 32--Gripping arm; 33--Power unit; 34--Gripper wheel; 40--Synchronization mechanism; 41--Synchronization gear; 42--Synchronization rack; Detailed Implementation
[0021] 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.
[0022] like Figure 1-4 As shown, a universal dual-hub clamp includes a frame 10, on which two sets of clamping units 20 are mounted. Each clamping unit 20 includes two sets of clamping assemblies 30 spaced apart and slidably connected to the frame 10. The spacing between the two sets of clamping assemblies 30 corresponds to the radial dimension of the wheel hub, and they are used to clamp the wheel hub. Each clamping assembly 30 includes a sliding beam 31 slidably connected to the frame 10, and two spaced-apart clamping arms 32 are vertically connected to the sliding beam 31. The clamping assemblies 30 are driven by a power unit 33, which provides power for the relative movement of the clamping assemblies 30. Specifically, the power unit 33 is fixedly connected to the frame 10, and its output end is connected to the sliding beam 31, which drives the sliding beam 31 to reciprocate on the frame 10, thereby causing the two sets of clamping assemblies 30 to move closer to or further away from the wheel hub to release it. The power unit 33 can be a conventional power configuration such as a cylinder or an electric actuator. A robot connection plate 11 is fixedly installed on the frame 10 for connecting and fixing with the robot, so that the double-wheeled clamp can automatically clamp and transport the wheel hub with the help of the robot.
[0023] This embodiment, by setting two sets of clamping components 30 spaced apart and slidably connected to the frame 10, can achieve the action of the two sets of clamping components 30 moving closer to clamp the wheel hub or moving away from the wheel hub under the drive of the power device 33. When clamping wheel hubs of different sizes, the clamping components 30 can meet the clamping requirements of wheel hubs of different sizes through relative movement of different strokes, giving this utility model a certain degree of versatility. It eliminates the trouble of traditional molds that need to make a separate clamp for each type of wheel hub, reducing the design and manufacturing cost of clamps and the difficulty of managing on-site tooling. At the same time, this embodiment sets two sets of clamping units 20 on the frame 10, which can complete the clamping and handling of two wheel hubs at the same time, improving the work efficiency and overcoming the problems of poor applicability and low work efficiency of traditional clamps.
[0024] Preferably, such as Figure 4As shown, the dual-hub clamp also includes a synchronization mechanism 40 to achieve synchronous relative movement of the two sets of clamping components 30, ensuring uniform force during clamping and avoiding eccentric clamping of the hub due to the difference in stroke between the two sets of clamping components 30. The synchronization mechanism 40 includes a synchronization gear 41 rotatably connected to the frame 10, with synchronization racks 42 meshing on both sides of the synchronization gear 41, and sliding beams 31 fixedly connected to the tail ends of the synchronization racks 42. When clamping the hub, the power unit 33 drives the corresponding hubs of the two sets of clamping components 30 to move closer to each other. Under the constraint of the synchronization gear 41, the synchronization racks 42, which are fixedly connected to the sliding beams 31 and mesh with the synchronization gear 41 on both sides, will move relative to each other at the same speed, forming synchronous action of the clamping components 30, effectively avoiding the problem of eccentric clamping of the hub.
[0025] Preferably, the clamping assembly 30 includes a gripper wheel 34 disposed at a portion corresponding to the wheel hub rim, and the gripper wheel 34 is rotatably connected to the bottom end of the clamping arm 32. In use, the gripper wheel 34 is secured to the wheel hub rim, ensuring clamping stability. Simultaneously, the gripper wheel 34, rotatably connected to the clamping arm 32, will roll into contact with the wheel hub when clamping it, reducing the risk of scratching the wheel hub.
[0026] Preferably, the gripper wheel 34 is made of a material with relatively low hardness, such as nylon or polyurethane, which further reduces the possibility of the wheel hub being damaged by the gripper wheel 34.
[0027] Preferably, such as Figure 4 As shown, the clamping arm 32 is movably connected to the sliding beam 31, allowing the spacing between the clamping arms 32 on the same side to be adjustable to meet the clamping needs of extreme-sized wheel hubs such as ultra-large or ultra-small wheels. Specifically, the sliding beam 31 has a groove 311 along its extension direction, and the clamping arm 32 passes through and is slidably connected to the groove 311. The clamping arm 32 has external threads, and fastening nuts 312 are screwed onto the clamping arms 32 on the upper and lower sides of the sliding beam 31. By rotating the fastening nuts 312, the clamping arms 32 can be locked and released on the sliding beam 31, thus adjusting the spacing between the clamping arms 32 on the same side. Simultaneously, by rotating the fastening nuts 312, the clamping arms 32 can be positioned at different heights, making the height of the clamping arms 32 adjustable and further improving applicability.
[0028] 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 universal dual wheel hub clamp, characterized by: The utility model provides a double wheel hub clamp, including frame body (10), two sets of clamping units (20) are arranged on frame body (10), clamping unit (20) includes two groups of interval arrangement and the sliding connection frame body (10) of clamping subassembly (30), and the interval of two groups of clamping subassembly (30) corresponds the radial dimension interval arrangement of wheel hub, clamping subassembly (30) includes the sliding beam (31) of sliding connection frame body (10), and two interval arrangement's clamping arms (32) are vertically connected on sliding beam (31), and clamping subassembly (30) is connected power device (33) transmission, power device (33) is fixedly connected frame body (10), and the output end of power device (33) is connected sliding beam (31), can drive sliding beam (31) reciprocating translation on frame body (10), to form two groups of clamping subassembly (30) and approach the action of clamping wheel hub or away from releasing wheel hub.
2. A universal dual wheel hub clamp as defined in claim 1, wherein: The frame body (10) is fixedly provided with a robot connecting plate (11) for connection and fixation with the robot.
3. A universal dual wheel hub clamp as defined in claim 1, wherein: The power device (33) is selected as a cylinder or an electric push rod.
4. The universal dual wheel hub clamp of claim 1, wherein: The double wheel hub clamp further comprises a synchronous mechanism (40), the synchronous mechanism (40) comprises a synchronous gear (41) rotatably connected to the frame body (10), and the two sides of the synchronous gear (41) are respectively meshingly connected with synchronous racks (42), and the tail ends of the synchronous racks (42) are respectively fixedly connected with the sliding beams (31).
5. A universal dual wheel hub clamp as defined in claim 1, wherein: The clamping subassembly (30) comprises a clamping jaw wheel (34) arranged corresponding to the wheel rim of the wheel hub, and the clamping jaw wheel (34) is rotatably connected to the bottom end of the clamping arm (32).
6. A universal dual wheel hub clamp as defined in claim 5 wherein: The clamping jaw wheel (34) is made of nylon or polyurethane material.
7. A universal dual wheel hub clamp as defined in claim 1 wherein: The clamping arm (32) is movably connected to the sliding beam (31), so that the interval of the clamping arms (32) on the same side is adjustable, the sliding beam (31) is provided with a sliding groove (311) in the length direction, the clamping arm (32) is arranged in the sliding groove (311) and is slidably connected to the sliding groove (311), the clamping arm (32) is provided with an external thread, and a fastening nut (312) is screwed on the clamping arm (32) on the upper and lower sides of the sliding beam (31).