Friction stir welding knife handle with self-cooling structure

Abstract

The friction stir welding knife handle with the self-cooling structure comprises an upper connecting block, a lower connecting block, a connecting disc and a connecting base, the bottom of the upper connecting block is fixedly connected with the upper surface of the connecting disc through the connecting base, and the bottom of the connecting disc is fixedly connected with the top end of the lower connecting block. Connecting holes are formed in inner cavities of the connecting base and the upper connecting block, mounting holes are formed in the positions, located at the top ends of the connecting holes, of the inner cavity of the upper connecting block, and clamping holes are formed in the positions, located at the bottoms of the connecting holes, of the inner cavity of the connecting base and formed between the connecting disc and the lower connecting block. Through the arrangement of the heat dissipation holes, external airflow enters the connecting holes through the heat dissipation holes, so that ventilation and heat dissipation of the knife handle are achieved, cold air absorbs heat of the knife handle, heat dissipation of the knife handle is achieved through continuous flowing of the cold air, and the situation that the temperature of the knife handle is too high during welding is avoided; therefore, the service life of the knife handle is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of friction stir welding, and in particular relates to a friction stir welding handle with a self-cooling structure. Background Art

[0002] The friction stir welding process is that a cylindrical or other shaped stirring head is inserted into the joint of the workpiece, and the high-speed rotation of the welding head causes it to rub against the welding workpiece material, thereby raising the temperature of the material at the connection part and softening it, while stirring and rubbing the material to complete the welding. At present, the welding head for friction stir welding at home and abroad usually includes a stirring head and a tool handle. Among them, the top of the tool handle body is provided with a connection hole for fixing the welding head on the friction welding machine, and the bottom is provided with a clamping hole for clamping the stirring head. During the friction stir welding process, the heat generated by the stirring head acts on the material to be welded on the one hand, and diffuses to the main shaft of the friction stir welding machine through the tool handle on the other hand.

[0003] Friction stir welding generally completes the welding of materials by driving the tool handle and solder to rotate at high speed through a rotating shaft. During the welding process, the temperature of the tool handle is high, and the existing tool handle lacks certain heat dissipation measures. As a result, the temperature of the tool handle is too high during long-term welding, which makes the temperature of the rotating shaft and other equipment too high, affecting normal use. Utility Model Content

[0004] The utility model aims to provide a friction stir welding tool handle with a self-cooling structure to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the specific technical scheme of the utility model is as follows: a stir friction welding shank with a self-cooling structure, comprising an upper connecting block, a lower connecting block, a connecting plate and a connecting seat, the bottom of the upper connecting block is fixedly connected to the upper surface of the connecting plate through the connecting seat, the bottom of the connecting plate is fixedly connected to the top of the lower connecting block, the connecting seat and the inner cavity of the upper connecting block are provided with connecting holes, the inner cavity of the upper connecting block is located at the top of the connecting hole and is provided with an installation hole, the inner cavity of the connecting seat is located at the bottom of the connecting hole and is provided with a clamping hole between the connecting plate and the lower connecting block, and both side walls of the connecting seat are provided with heat dissipation holes connected to the inner cavity of the connecting hole.

[0006] Preferably, the upper connecting block, the lower connecting block and the connecting seat are all cone structures.

[0007] Preferably, the mounting hole, the connecting hole and the clamping hole are interconnected, and the mounting hole, the connecting hole and the clamping hole are coaxial.

[0008] Preferably, the heat dissipation holes are arranged obliquely.

[0009] Preferably, the side wall of the upper connecting block is provided with two fixing holes distributed up and down and connected with the mounting hole.

[0010] Preferably, a plurality of through holes distributed in a circular array are provided on the surface of the connection disk, and countersunk holes are provided at the top ends of the through holes, and U-shaped openings are provided on both sides of the surface of the connection disk.

[0011] The friction stir welding handle with a self-cooling structure of the utility model has the following advantages:

[0012] The utility model provides heat dissipation holes so that external air flows into the connecting holes through the heat dissipation holes, thereby realizing ventilation and heat dissipation of the knife handle, allowing cold air to absorb the heat of the knife handle, and realizing heat dissipation of the knife handle through the continuous flow of cold air, thereby preventing the knife handle from being overheated during welding, thereby greatly extending the service life of the knife handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0016] Figure 3 for Figure 1 Right view of;

[0017] Explanation of markings in the figure: 1. Upper connecting block; 2. Lower connecting block; 3. Connecting plate; 4. Connecting seat; 5. U-shaped opening; 6. Mounting hole; 7. Fixing hole; 8. Through hole; 9. Heat dissipation hole; 10. Clamping hole; 11. Connecting hole; 12. Countersunk hole. DETAILED DESCRIPTION

[0018] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0019] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0022] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0023] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a friction stir welding handle with a self-cooling structure of the utility model in conjunction with the accompanying drawings.

[0024] like Figure 1-3As shown, a friction stir welding tool handle with a self-cooling structure of the utility model comprises an upper connecting block 1, a lower connecting block 2, a connecting plate 3 and a connecting seat 4, the bottom of the upper connecting block 1 is fixedly connected to the upper surface of the connecting plate 3 through the connecting seat 4, the bottom of the connecting plate 3 is fixedly connected to the top of the lower connecting block 2, the connecting seat 4 and the inner cavity of the upper connecting block 1 are provided with a connecting hole 11, the inner cavity of the upper connecting block 1 is located at the top of the connecting hole 11 and is provided with a mounting hole 6, the inner cavity of the connecting seat 4 is located at the bottom of the connecting hole 11 and is provided with a clamping hole 10 between the connecting plate 3 and the lower connecting block 2, and both side walls of the connecting seat 4 are provided with heat dissipation holes 9 connected to the inner cavity of the connecting hole 11, the heat dissipation holes 9 are arranged at an angle, and the setting of the heat dissipation holes 9 allows the external airflow to enter the inside of the connecting hole 11 through the heat dissipation holes 9, thereby realizing ventilation and heat dissipation of the tool handle, allowing the cold air to absorb the heat of the tool handle, and realizing the heat dissipation of the tool handle through the continuous flow of cold air, thereby avoiding the tool handle from being overheated during welding, thereby greatly extending the service life of the tool handle.

[0025] The upper connecting block 1, the lower connecting block 2 and the connecting seat 4 are all cone structures, the mounting hole 6 is interconnected with the connecting hole 11 and the clamping hole 10, and the mounting hole 6 is coaxial with the connecting hole 11 and the clamping hole 10. The mounting hole 6 is used to install the stirring head, and the tool handle is connected to the friction welding machine through the connecting hole 11 and the clamping hole 10. The side wall of the upper connecting block 1 is provided with two fixing holes 7 distributed up and down and connected with the mounting hole 6, the surface of the connecting plate 3 is provided with a plurality of through holes 8 distributed in a circumferential array, and the top of the through hole 8 is provided with a countersunk hole 12, and the surface of the connecting plate 3 is provided with a U-shaped opening 5 on both sides. Through the provision of the through hole 8 and the countersunk hole 12, it is convenient to connect the connecting plate 3 to the friction welding machine, and under the action of the U-shaped opening 5, it is convenient to install and position it, making the installation easier.

[0026] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A friction stir welding handle with a self-cooling structure, characterized in that: The invention comprises an upper connecting block (1), a lower connecting block (2), a connecting plate (3) and a connecting seat (4); the bottom of the upper connecting block (1) is fixedly connected to the upper surface of the connecting plate (3) through the connecting seat (4); the bottom of the connecting plate (3) is fixedly connected to the top of the lower connecting block (2); the inner cavity of the connecting seat (4) and the upper connecting block (1) are provided with a connecting hole (11); the inner cavity of the upper connecting block (1) is provided with a mounting hole (6) at the top of the connecting hole (11); the inner cavity of the connecting seat (4) is provided with a clamping hole (10) at the bottom of the connecting hole (11) and between the connecting plate (3) and the lower connecting block (2); and the two side walls of the connecting seat (4) are provided with heat dissipation holes (9) connected to the inner cavity of the connecting hole (11).

2. The friction stir welding tool handle with a self-cooling structure according to claim 1, characterized in that: The upper connecting block (1), the lower connecting block (2) and the connecting seat (4) are all cone structures.

3. The friction stir welding handle with a self-cooling structure according to claim 1, characterized in that: The mounting hole (6), the connecting hole (11) and the clamping hole (10) are interconnected, and the mounting hole (6), the connecting hole (11) and the clamping hole (10) are coaxial.

4. The friction stir welding handle with a self-cooling structure according to claim 1, characterized in that: The heat dissipation holes (9) are arranged at an angle.

5. The friction stir welding handle with a self-cooling structure according to claim 1, characterized in that: The side wall of the upper connecting block (1) is provided with two fixing holes (7) distributed up and down and connected to the mounting hole (6).

6. The friction stir welding handle with a self-cooling structure according to claim 1, characterized in that: The surface of the connection disk (3) is provided with a plurality of through holes (8) distributed in a circumferential array, and the top of the through hole (8) is provided with a countersunk hole (12), and both sides of the surface of the connection disk (3) are provided with U-shaped openings (5).

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