CN210306235U - Friction stir welding tool based on electric hand drill operation - Google Patents

Abstract

The utility model discloses a friction stir welding instrument based on electric hand drill operation relates to friction stir welding equipment field, including stalk portion, shaft shoulder and stirring needle, the first end of stalk portion is connected with the drill chuck cooperation of electric hand drill, the shaft shoulder set up in the second end of stalk portion, the up end of shaft shoulder with the second end terminal surface parallel and level of stalk portion, the lower terminal surface processing of shaft shoulder has the mounting hole, the stirring needle comprises prism and cone two parts, the internal diameter of mounting hole with the external diameter of prism is the same, the external diameter of prism with the bottom surface diameter of cone is the same, the screw thread has been seted up on the surface of cone, the tip of cone contacts with the weldment of treating processing. The utility model discloses an install the stirring head on electric hand drill and implement the welding, can solve friction stir welding equipment and be difficult to remove, the welding convenience receives the restriction scheduling problem, helps enlarging friction stir welding's range of application.

Description

Friction stir welding tool based on electric hand drill operation

Technical Field

The utility model relates to a friction stir welding equipment field specifically is a friction stir welding instrument based on electric hand drill operation.

Background

In 1991, The Welding Institute (The Welding Institute, TWI) invented friction stir Welding technology, and this new solid phase Welding technology has been rapidly developed in nearly 30 years. Compared with other welding methods, the friction stir welding method has the advantages that the friction stir welding method does not need filling materials, has refined joint tissues, good mechanical properties, good weld joint surface formation, small deformation, no cracks, air holes and other welding defects, is applicable to welding of various materials, has high efficiency, low cost and environment-friendly and pollution-free welding process, and due to the advantages, the friction stir welding method is widely applied in the industries of aviation, aerospace, ships, trains, electric power and the like.

Friction stir welding has some problems that are difficult to ignore while exerting its great advantages, for example, conventional friction stir welding equipment is bulky, and the weight can reach several tons or even dozens of tons, and although the welding manufacturing requirement of a specific structural member can be met, the equipment lacks flexibility and is difficult to be applied to occasions where in-situ welding is carried out on site. Currently, equipment structures are increasingly bulky, the applied environments are also increasingly complex, the in-place maintenance and repair problems of the equipment structures are increasingly prominent, the demand for high-quality in-place welding technology is also more urgent, and obviously, the equipment characteristics of the traditional friction stir welding become key factors limiting the application of the friction stir welding, namely the high-quality welding method, in the field of in-place welding. In order to overcome this limitation, it is necessary to develop a new portable friction stir welding method. The hand electric drill is a small, exquisite, flexible and portable small-sized drilling device, mainly comprises a motor, a control switch, a drill chuck and the like, can realize the rapid drilling operation of wood, metal and the like, and is widely applied to industries such as buildings, decorations, furniture and the like due to the flexible and convenient use and the simple and efficient drilling process. Because electric hand drill drilling principle is similar with friction stir welding's welding principle, consequently this patent combines electric hand drill characteristic and friction stir welding technique, realizes satisfying the portable friction stir welding that the structure is taken one's place to restore and is used.

Disclosure of Invention

In order to overcome current friction stir welding device bulky, carry the difficulty, be difficult to carry out real-time welding scheduling problem of taking one's place to some structures, the utility model provides a friction stir welding method based on electric hand drill operation, this method mainly realizes friction stir welding process through the stirring head of installing on electric hand drill.

The utility model provides a technical scheme that technical problem adopted is:

the utility model provides a friction stir welding instrument based on electric hand drill operation, includes stalk portion, shaft shoulder and pin mixer, the first end of stalk portion is connected with the drill chuck cooperation of electric hand drill, the shaft shoulder set up in the second end of stalk portion, the up end of shaft shoulder with the second end terminal surface parallel and level of stalk portion, the lower terminal surface processing of shaft shoulder has the mounting hole, the pin mixer comprises prism and cone two parts, the internal diameter of mounting hole with the external diameter of prism is the same, the external diameter of prism with the bottom surface diameter of cone is the same, the screw thread has been seted up on the surface of cone, the tip of cone contacts with the weldment of treating processing.

Preferably, the handle is cylindrical or conical, and the first end of the handle is in a flat tail shape and is used for extending into a drill chuck of an electric hand drill.

Preferably, the lower end face of the shaft shoulder is a plane or an inner concave face.

Preferably, the stirring pin is cylindrical or conical, and the surface of the stirring pin is provided with a groove structure.

Preferably, the length of the handle is 10-60mm, the diameter of the shaft shoulder is 6-40mm, the height is 3-10mm, the length of the stirring pin is 1-20mm, and the diameter of the root is 1-15 mm.

Preferably, the shaft shoulder and the stirring pin are in a concentric split type connecting structure.

Preferably, the mounting hole and the prism body are gap-coupled.

Preferably, the prism is provided with a magnet, and the cone is provided with a magnet at the end part contacted with the weldment.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses a friction stir welding who realizes the material at electric hand drill, welding process is nimble simple and direct, can realize that the real-time scene of the structure of being active service under large-scale equipment structure or the complex environment takes one's place to maintain the maintenance.

The utility model discloses an adopt friction stir welding process, welding seam surface takes shape, warp little, no welding defects such as crackle, gas pocket.

Drawings

Fig. 1 is a schematic structural diagram of a friction stir welding tool based on an electric hand drill operation according to the present invention;

FIG. 2 is a schematic view of the integrated design of the shaft shoulder and the stirring pin of the present invention;

FIG. 3 is a schematic view of the split design of the stirring pin and the shaft shoulder of the present invention;

fig. 4 is a schematic view of the structure of the utility model in use.

Description of reference numerals:

1-handle part, 2-shaft shoulder, 3-stirring pin, 4-mounting hole, 5-electric hand drill, 6-weldment, D1-handle part diameter, D2-shaft shoulder diameter, D3-stirring pin root diameter, L1-handle part length, L2-shaft shoulder height and L3-stirring pin length.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, the present embodiment provides a friction stir welding tool based on electric hand drill operation, which includes a handle portion 1, a shoulder 2 and a stir pin 3, wherein the handle portion 1, the shoulder 2 and the stir pin 3 are concentric and integral rotators, the handle portion 1 is shaped as a cylinder, the end of the handle portion 1 is processed into a flat tail shape, the length L1 of the handle portion 1 is 10-60mm, the diameter D1 is 5-20mm, the first end of the handle portion 1 is installed in a drill chuck of an electric hand drill 5, the second end of the handle portion 1 is connected to the shoulder, the end surface of the second end is flush with the shoulder, the diameter D2 of the shoulder is 6-40mm, the height L2 is 3-10mm, the lower end surface of the shoulder 2 is connected to the stir pin 3, the shoulder 2 and the stir pin 3 may be of a concentric and separate connection structure, or may be of a direct and, when the shoulder 2 and the stir pin 3 are of a separate connection structure, the lower end face of the shaft shoulder 2 is provided with a mounting hole 4, the mounting hole 4 is a hexagonal prism groove, the stirring pin 3 is in a cone shape, the inner diameter of the mounting hole 4 is the same as the outer diameter of a prism body in the stirring pin 3, the outer diameter of the prism body is the same as the diameter of the bottom face of the conical head of the stirring pin, right-handed threads are processed on the surface of the stirring pin 3, the length L3 of the stirring pin is 1-20mm, and the root diameter D3 is 1-15 m.

As shown in fig. 3, in a further embodiment, the present invention provides a friction stir welding tool based on an electric hand drill operation, a shaft shoulder 2 and a stir pin 3 are concentrically and separately connected, at this time, one end of the stir pin 3 is processed into a prism shape, a mounting hole 4 for inserting the prism of the stir pin 3 is processed on a lower bottom surface of the shaft shoulder 2, a clearance fit is achieved between the shaft shoulder and the stir pin 3, the shaft shoulder 2 can be separated from the stir pin 3 after welding, the handle 1 can be processed into other columns and cones, and the length of the handle 1 is 10-60 mm. The lower end face of the shaft shoulder 2 can be a plane or an inward concave face, the stirring pin 3 can also be in other columnar and conical structures, and the side surface of the stirring pin 3 can also be a curved surface and can be processed with structures such as threads, grooves and the like.

As shown in fig. 4, further, the present embodiment provides a friction stir welding tool based on electric hand drill operation, a power supply of the electric hand drill 5 has two types of direct current and alternating current, a rotation speed may be 50-3600r/min, a motor torque is 10-100N · m, a rated voltage is 12-220V, a drill chuck of the electric hand drill 5 can be used for a shank of a drill bit to extend into and fit well between the drill chuck and the drill chuck, and the design of the electric hand drill 5 for mounting the drill bit can be directly applied to in-situ welding of a weldment 6 made of materials such as copper, aluminum, magnesium, and alloys thereof with a thickness of 2-20mm, and particularly in-situ repair welding of a structural member, the advantages of simplicity, convenience, flexibility, and high efficiency will be exhibited. Preferably, magnets are arranged on the prism bodies, and magnets are arranged on the end parts of the cone bodies, which are in contact with the weldment 6. Because the cone is provided with the magnet, the magnetic force can be generated when the cone is contacted with the weldment 6, and the stable processing operation is facilitated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (8)

1. The utility model provides a friction stir welding instrument based on electric hand drill operation, includes stalk portion, shoulder and pin mixer, its characterized in that, the first end of stalk portion is connected with the drill chuck cooperation of electric hand drill, the shoulder set up in the second end of stalk portion, the up end of shoulder with the second end terminal surface parallel and level of stalk portion, the lower terminal surface processing of shoulder has the mounting hole, the pin mixer comprises prism and cone two parts, the internal diameter of mounting hole with the external diameter of prism is the same, the external diameter of prism with the bottom surface diameter of cone is the same, the screw thread has been seted up on the surface of cone, the tip of cone contacts with the weldment of treating processing.

2. The friction stir welding tool of claim 1 wherein the shank is cylindrical or conical in shape and the first end of the shank is configured as a spade end for extending into a drill chuck of an electric hand drill.

3. A friction stir welding tool based on electric hand drill operation as claimed in claim 1 wherein said shoulder lower end surface is provided as a flat or concave inner surface.

4. The friction stir welding tool based on electric hand drill operation of claim 1, wherein the pin is cylindrical or conical and the pin surface is provided with a groove structure.

5. A friction stir welding tool based on electric hand drill operation as claimed in claim 1 wherein said shank has a length of 10-60mm, said shoulder has a diameter of 6-40mm and a height of 3-10mm, said pin has a length of 1-20mm and a root diameter of 1-15 mm.

6. The electric hand drill operation-based friction stir welding tool of claim 1, wherein the shoulder and the pin are of a concentric split connection.

7. The electric hand drill operation based friction stir welding tool of claim 6 wherein the mounting hole and the prismatic body are gap connected.

8. A friction stir welding tool based on electric hand drill operations as claimed in claim 7 wherein said prism is provided with a magnet and said cone is provided with a magnet at the end in contact with said weldment.

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