Ultrasonic-current coupling auxiliary surface modification rolling contact tool head

Abstract

The utility model belongs to the technical field of machining devices, and particularly relates to an ultrasonic-current coupling auxiliary surface modification rolling contact tool head. The tool head comprises a tool head shell and threads arranged on the first side of the tool head shell, and the threads are used for being connected with an ultrasonic amplitude-change pole; the open cavity is formed in the second side of the tool head shell, a machining ball is arranged in the open cavity, a plurality of balls are arranged between the machining ball and the inner wall of the open cavity, and the machining ball can roll in the open cavity so as to keep rolling contact with the metal surface. The axial acting force enables the two parts to be in close contact, and current and ultrasonic energy loss transmitted through the machining ball can be negligible. The tool head provided by the utility model has good rotation performance, can flexibly adapt to metal material surfaces with various complex shapes and different curvatures and angles, ensures that the tool head always keeps a good contact state with the metal surface in the ultrasonic-current coupling treatment process, and improves the uniformity and consistency of surface modification.

Description

Technical Field

[0001] This utility model belongs to the technical field of machining equipment, specifically relating to an ultrasonic-current coupled surface-modified rolling contact tool head. Background Technology

[0002] In modern manufacturing, surface modification technology for metal materials is crucial for improving the performance of components. Ultrasonic-current coupled surface modification, as an emerging technology, has shown great development potential. Traditional ultrasonic rolling treats the surface of metal parts by combining ultrasonic impact energy with static rolling. During processing, the metal material undergoes significant elastoplastic deformation, and after processing, the workpiece surface experiences a certain degree of elastic recovery. This results in a peak-and-valley phenomenon on the metal surface. Simultaneously, during the elastic recovery stage, residual stress is pre-placed on the material surface, thereby reducing surface roughness and improving its overall surface performance. Ultrasonic-current coupled surface modification, on the other hand, treats the surface of metal materials through the synergistic effect of current, ultrasonic vibration, and static pressure. Compared to ultrasonic rolling alone, this technology can significantly improve the surface microstructure, hardness, and wear resistance of metal materials, providing a superior surface treatment solution for modern manufacturing. Research has found that the contact method and effect between the tool and the material surface have a significant impact on the surface quality of components during surface modification. Traditional contact components are mostly rigid structures, which are difficult to adapt to parts with complex shapes. They are prone to uneven contact during the modification process, resulting in inconsistent surface modification effects and failing to fully utilize the advantages of ultrasonic-current coupling technology. In addition, the tool head will suffer severe wear after long-term operation, and traditional tool heads have poor flexibility and adaptability when facing surfaces with different curvatures and angles. The replacement speed is slow and difficult, which reduces production efficiency and increases production costs. Utility Model Content

[0003] The purpose of this invention is to provide a tool head for ultrasonic-current coupling assisted surface modification, addressing the problems with contact components in existing ultrasonic-current coupling assisted surface modification technologies. This tool head possesses excellent rotational performance, flexibly adapting to various complex shapes and metal material surfaces with different curvatures and angles. This ensures that the tool head maintains good contact with the metal surface throughout the ultrasonic-current coupling process, improving the uniformity and consistency of surface modification. Furthermore, through a rational structural design, the tool head's installation convenience and stability are improved, increasing the speed of tool head replacement, reducing replacement difficulty, increasing production efficiency, and reducing production costs, thereby meeting the high-quality and high-efficiency requirements of modern high-end manufacturing for metal material surface modification.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] In a first aspect, this utility model provides an ultrasonic-current coupled assisted surface modification rolling contact tool head, comprising:

[0006] Tool head housing,

[0007] A thread is provided on the first side of the tool head housing, and the thread is used to connect the ultrasonic amplitude transformer rod;

[0008] An opening is provided on the second side of the tool head housing. A processing ball is provided inside the opening. Multiple ball bearings are arranged between the processing ball and the inner wall of the opening. The processing ball can roll inside the opening to maintain rolling contact with the metal surface.

[0009] Optionally, it also includes an end cap, which confines the processed ball within the opening.

[0010] Optionally, a gap is left between the end cap and the processed ball.

[0011] Optionally, it also includes a mounting base, the bottom of which is used to connect to a cylinder that provides static pressure.

[0012] Optionally, the surface of the mounting base is insulated with an insulating material.

[0013] Optionally, the mounting base is provided with a flange for fixing the ultrasonic amplitude transformer, and the rear side of the ultrasonic amplitude transformer is connected to the ultrasonic transducer.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention improves the uniformity and consistency of surface modification by arranging ball bearings between the machining sphere and the inner wall of the opening, ensuring that the rolling elements (machining sphere) in the tool head maintain good rolling contact with the metal surface during ultrasonic-current coupling treatment. The tool head and amplitude transformer are connected by a threaded connection, significantly increasing the speed of replacement and allowing for flexible handling of various working conditions to meet the surface modification requirements of different materials and process parameters. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the ultrasonic-current coupled assisted surface modification tool head in Example 1;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the tool head.

[0018] The following are the labels in the diagram: 1. Mounting base; 2. Flange; 3. Ultrasonic amplitude transformer; 4. Tool head; 5. Tool head housing; 6. Ball bearing; 7. Machining sphere; 8. End cap. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0021] Example 1

[0022] To make the purpose, technical solution and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] Combination Figures 1-2This embodiment provides a tool head for ultrasonic-current coupled assisted surface modification, including a mounting base 1. The bottom of the mounting base 1 is connected to a cylinder providing static pressure and is insulated with insulating material to effectively prevent current input from affecting the overall device, thus ensuring the stability and safety of the ultrasonic-current coupled assisted surface modification process. Furthermore, a flange 2 is mounted on the surface of the mounting base 1 of the processing device. The flange 2 is used to fix an ultrasonic amplitude transformer 3. The rear side of the ultrasonic amplitude transformer 3 is connected to an ultrasonic transducer, which converts AC signals into high-frequency mechanical vibrations and transmits them to the tool head 4 through the ultrasonic amplitude transformer 3. The front end of the ultrasonic amplitude transformer 3 is connected to the tool head 4 via a threaded connection. In actual operation, tool heads 4 of different sizes and shapes can be quickly replaced according to different working conditions to adapt to diverse processing needs.

[0024] Specifically, the overall structure of the tool head can be mounted on the ultrasonic-current coupling assisted surface modification device via the mounting base 1. The modification device is equipped with a high-precision adjustment mechanism to precisely adjust the position of the tool head 4, thereby ensuring that the tool head 4 can accurately reach the specified processing position and meet the process requirements of high-precision surface modification.

[0025] Furthermore, the tool head 4 includes a tool head housing 5, the lower part of which is threaded for mounting and engaging with the head of the ultrasonic amplitude transformer 3. An opening is formed at the top of the tool head housing 5, containing a certain space. A processing ball 7 is disposed within the opening, and multiple ball bearings 6 are arranged between the processing ball 7 and the inner wall of the opening. The processing ball 7 can roll within the opening to maintain rolling contact with the metal surface. The processing ball is fixed within the opening by an end cap 8 to prevent detachment. To ensure normal rolling of the processing ball, a certain gap exists between the end cap 8 and the processing ball 7. During surface modification processing, axial force keeps them in close contact, and the loss of current and ultrasonic energy transmitted through the processing ball is negligible.

[0026] In summary, the tool head in this embodiment achieves the following: First, during the ultrasonic-current coupling process, the ball bearings ensure that the processing ball 7 maintains good rolling contact with the metal surface, improving the uniformity and consistency of surface modification; Second, through a precise overall structural design, the processing ball 7 in the tool head exhibits excellent electrical contact performance, and ultrasonic energy loss is negligible; Third, an optimal tool head packaging structure is adopted, with the bottom of the tool head housing 5 connected to the ultrasonic amplitude transformer 3 via threads, making installation convenient and reliable, increasing the tool head replacement speed, reducing replacement difficulty, improving production efficiency, and reducing production costs.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An ultrasonic-current coupled assisted surface-modified rolling contact tool head, characterized in that, include: Tool head housing (5), A thread is provided on the first side of the tool head housing (5), and the thread is used to connect the ultrasonic amplitude transformer (3); An opening is provided on the second side of the tool head housing (5). A processing ball (7) is provided inside the opening. A plurality of ball bearings (6) are arranged between the processing ball (7) and the inner wall of the opening. The processing ball (7) can roll inside the opening to maintain rolling contact with the metal surface.

2. The ultrasonic-current coupled assisted surface modification rolling contact tool head according to claim 1, characterized in that, It also includes an end cap (8), the processed ball (7) being confined within the opening by the end cap (8).

3. The ultrasonic-current coupled assisted surface modification rolling contact tool head according to claim 2, characterized in that, A gap is left between the end cap (8) and the processed ball (7).

4. The ultrasonic-current coupled assisted surface modification rolling contact tool head according to claim 1, characterized in that, It also includes a mounting base (1), the bottom of which is used to connect to a cylinder that provides static pressure.

5. The ultrasonic-current coupled assisted surface modification rolling contact tool head according to claim 4, characterized in that, The surface of the mounting base (1) is insulated with insulating material.

6. The ultrasonic-current coupled assisted surface modification rolling contact tool head according to claim 4, characterized in that, The mounting base (1) is provided with a flange (2) for fixing the ultrasonic amplitude transformer (3), and the rear side of the ultrasonic amplitude transformer (3) is connected to the ultrasonic transducer.

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