Hub surface strengthening cutter

Abstract

The utility model relates to the technical field of aluminum alloy hub manufacturing, and discloses a hub surface strengthening cutter which comprises a cutter head used for rolling the surface of a hub, the cutter head is a rotating body with the section of a T-shaped structure, the cutter head comprises a rolling part and a connecting part, the rolling part is arranged at the front end and used for rolling the surface of the hub, and the connecting part is arranged at the rear end of the cutter head. The connecting part and the rolling part are coaxially arranged and fixedly connected, the outer diameter of the connecting part is smaller than that of the rolling part, and the tool bit is rotationally connected with the tool apron. By arranging the tool bit with the T-shaped structure, the outer side of the rolling part can be fully exposed, the rolling device is more suitable for rolling the surfaces of hubs with curved surface structures such as hubs, rims and the like, and the problems that a traditional rolling wheel is connected through a wheel carrier, wheel carrier interference is prone to occurring, and applicability is poor are solved. Meanwhile, the structural strength of the tool bit of the T-shaped structure is enhanced, and the stability and the machining precision of rolling machining are guaranteed; the first bearing position and the second bearing position are arranged, and the rotation stability of the tool bit is improved by adopting a double-bearing connection mode.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy wheel hub manufacturing, in particular to a wheel hub surface strengthening tool. Background Art

[0002] Currently, aluminum alloy Kaba wheels are commonly made of 6061 aluminum alloy, which is prone to rim fatigue wear during use. Furthermore, increasing wheel strength typically relies on increasing wheel thickness, which fails to meet lightweighting requirements. Aluminum alloy wheel surface hardening technology is a tool-free plastic machining method for wheel surface hardening. It offers the advantages of safety, convenience, and precise control. It effectively improves the wheel surface texture, enhances its surface hardness and strength, and mitigates defects such as wear and cracking that can easily occur during use.

[0003] Chinese utility model patent application number 202420402720X discloses a rolling device for improving the surface hardness of a wheel hub. The roller of the rolling mechanism rolls against the rotating hub flange end face, generating rolling pressure on the hub end face to improve the surface texture of the hub and increase its surface hardness and strength. This solution, in which the roller is connected to the tool holder via a wheel frame, results in a relatively complex structure and is susceptible to interference from the wheel frame during use. This makes it difficult to meet the rolling requirements for curved surfaces such as the wheel rim, resulting in poor applicability. Furthermore, the roller and tool holder are rigidly connected, resulting in poor processing stability.

[0004] In view of this, developing a new type of wheel hub surface strengthening tool for actual production is an urgent problem to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a hub surface strengthening tool to solve the problems of the existing hub surface rolling device having a complex structure, poor applicability and poor processing stability in view of the above problems.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A wheel hub surface strengthening tool includes a cutter head for rolling the wheel hub surface. The cutter head is a rotating body with a T-shaped cross-section. The cutter head includes a rolling part and a connecting part. The rolling part is arranged at the front end and is used for rolling the wheel hub surface. The connecting part is coaxially arranged and fixedly connected with the rolling part, and the outer diameter of the connecting part is smaller than the outer diameter of the rolling part. The cutter head is rotatably connected to the tool seat.

[0008] Preferably, a center hole is formed on the cutter head, a fixed shaft is passed through the center hole, the cutter head is rotatably connected to the front end of the fixed shaft, and the rear end of the fixed shaft is fixedly connected to the cutter seat.

[0009] Preferably, the connecting part of the tool head is provided with a bearing position, a first bearing is assembled in the bearing position, and the tool head is rotationally connected with the fixed shaft through the first bearing.

[0010] Preferably, the rolling part of the tool head is also provided with a bearing position corresponding to the fixed shaft, a second bearing is assembled in the bearing position, and the tool head is rotationally connected with the fixed shaft through the first bearing and the second bearing.

[0011] Preferably, the fixed shaft is connected with the tool holder through a tool handle, a connecting hole is formed in the tool holder, the front end of the tool handle is connected with the fixed shaft, and the tail end of the tool handle is inserted into the connecting hole to realize the connection and fixation of the tool holder and the tool handle.

[0012] Preferably, a long strip perforation is formed in the tool handle, and a locking hole is arranged in the tool holder corresponding to the long strip perforation.

[0013] The utility model discloses the beneficial effect lies in:

[0014] The utility model discloses a tool head of T type structure can make rolling part outside fully expose, is more applicable to the wheel hub surface of wheel hub flange etc. Curved surface structure carries out the rolling processing of improving the traditional rolling wheel through the wheel frame connection, and the problem of poor applicability of easy wheel frame interference is solved. Meanwhile, the tool head of T type structure strengthens the structural strength of itself, guarantees the stability and processing precision of rolling processing, and through setting up first bearing position and second bearing position, the rotation stability of the tool head is improved by adopting the connection mode of double bearings. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model discloses a tool head of T type structure can make rolling part outside fully expose, is more applicable to the wheel hub surface of wheel hub flange etc. Curved surface structure carries out the rolling processing of improving the traditional rolling wheel through the wheel frame connection, and the problem of poor applicability of easy wheel frame interference is solved. Meanwhile, the tool head of T type structure strengthens the structural strength of itself, guarantees the stability and processing precision of rolling processing, and through setting up first bearing position and second bearing position, the rotation stability of the tool head is improved by adopting the connection mode of double bearings.

[0016] Fig. 1 It is the cross section structure schematic diagram of the utility model assembly state.

[0017] Fig. 2 It is the utility model's explosion view.

[0018] In the drawing: 10 is tool head, 11 is rolling part, 12 is connecting part, 13 is first bearing, 14 is second bearing, 20 is tool holder, 21 is connecting hole, 22 is locking hole, 30 is fixed shaft, 40 is tool handle, 41 is long strip perforation. PREFERRED EMBODIMENT

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0020] As Figs. 1-2As shown, a hub surface strengthening tool includes a cutter head 10 for rolling the hub surface. The cutter head 10 is a rotating body with a T-shaped cross-section. The cutter head 10 includes a rolling portion 11 and a connecting portion 12. The rolling portion 11 is arranged at the front end and is used for rolling the hub surface. The connecting portion 12 is coaxially arranged and fixedly connected to the rolling portion 11, and the outer diameter of the connecting portion 12 is smaller than the outer diameter of the rolling portion 11. The cutter head 10 is rotatably connected to the tool holder 20. When in use, the tool is fixed to the machine tool turret through the tool holder 20, so that the front end of the cutter head 10 contacts the hub. The machine tool drives the hub to be processed to rotate, and the outer diameter of the rolling portion 11 of the cutter head 10 rolls and presses the hub surface, thereby performing the rolling strengthening operation on the hub surface.

[0021] In this embodiment, the T-shaped cutter head 10 fully exposes the outer side of the rolling portion 11, making it more suitable for rolling curved hub surfaces, such as hub rims. This improves the conventional roller attachment problem of frame interference and poor applicability. Furthermore, the T-shaped cutter head 10 enhances its structural strength, ensuring stability and precision in the rolling process.

[0022] As a preferred embodiment, a center hole is opened on the cutter head 10 , a fixed shaft 30 is passed through the center hole, the cutter head 10 is rotatably connected to the front end of the fixed shaft 30 , and the rear end of the fixed shaft 30 is fixedly connected to the cutter seat 20 .

[0023] Furthermore, a bearing seat is provided on the connecting portion 12 of the cutter head 10 , and a first bearing 13 is assembled in the bearing seat. The cutter head 10 is rotatably connected to the fixed shaft 30 via the first bearing 13 .

[0024] Furthermore, the rolling portion 11 of the cutter head 10 is also provided with a bearing corresponding to the fixed shaft 30, and a second bearing 14 is mounted in the bearing. The cutter head 10 is rotatably connected to the fixed shaft 30 via the first bearing 13 and the second bearing 14. This embodiment improves the rotational stability of the cutter head 10 by providing the first bearing 13 and the second bearing 14, adopting a dual-bearing connection method.

[0025] In a further embodiment, the fixed shaft 30 is connected to the knife base 20 via a knife handle 40. The knife base 20 is provided with a connecting hole 21. The front end of the knife handle 40 is connected to the fixed shaft 30, and the rear end of the knife handle 40 is inserted into the connecting hole 21, thereby achieving a fixed connection between the knife base 20 and the knife handle 40. The knife handle 40 is provided with an elongated through-hole 41, and the knife base 20 is provided with a locking hole 22 corresponding to the elongated through-hole 41. During installation, the rear end of the knife handle 40 is inserted into the connecting hole 21 of the knife base 20, and the elongated through-hole 41 of the knife handle 40 is aligned with the locking hole 22 on the knife base 20. A locking pin is used to penetrate the locking hole 22 and the elongated through-hole 41 to lock the knife base 20 and the knife handle 40, thereby ensuring connection strength and installation positioning accuracy.

[0026] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, any deformation made should be deemed to be protected by the present invention.

Claims

1. A wheel hub surface strengthening tool, characterized by: The invention comprises a cutter head (10) for rolling the surface of a wheel hub, wherein the cutter head (10) is a rotating body with a T-shaped cross section, and the cutter head (10) comprises a rolling portion (11) and a connecting portion (12), wherein the rolling portion (11) is arranged at the front end, and the connecting portion (12) is coaxially arranged with the rolling portion (11) and fixedly connected, and the outer diameter of the connecting portion (12) is smaller than the outer diameter of the rolling portion (11), and the cutter head (10) is rotatably connected to the cutter seat (20).

2. The hub surface strengthening tool according to claim 1, characterized in that: The cutter head (10) is provided with a central hole, a fixed shaft (30) is passed through the central hole, the cutter head (10) is rotatably connected to the front end of the fixed shaft (30), and the rear end of the fixed shaft (30) is fixedly connected to the cutter seat (20).

3. The wheel hub surface strengthening tool according to claim 2, characterized in that: A bearing seat is provided on the connecting portion (12) of the cutter head (10), a first bearing (13) is mounted in the bearing seat, and the cutter head (10) is rotatably connected to the fixed shaft (30) via the first bearing (13).

4. The wheel hub surface strengthening tool according to claim 3, characterized in that: The rolling portion (11) of the cutter head (10) is also provided with a bearing seat corresponding to the fixed shaft (30), and a second bearing (14) is assembled in the bearing seat. The cutter head (10) is rotatably connected to the fixed shaft (30) through the first bearing (13) and the second bearing (14).

5. The hub surface strengthening tool according to claim 2, characterized in that: The fixed shaft (30) is connected to the knife seat (20) via the knife handle (40). A connecting hole (21) is provided on the knife seat (20). The tail end of the knife handle (40) is inserted into the connecting hole (21), and the front end of the knife handle (40) is connected to the fixed shaft (30).

6. The hub surface strengthening tool according to claim 5, characterized in that: The knife handle (40) is provided with a long through hole (41), and the knife seat (20) is provided with a locking hole (22) corresponding to the long through hole (41).

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