TWM460740U - Friction stirring head - Google Patents

Description

Friction stirrer

This creation is a friction stirrer head, especially a friction stirrer with a heat dissipation function.

The friction stir welding process in the joining process technology sequentially performs the steps of friction heat generation, solid state stirring, extrusion mixing and cooling joint with the workpiece to be joined by the friction stir head, thereby joining the workpiece to be joined, as shown in FIG. The friction stirrer 90 is clamped in a clamp 93, and the clamp 93 can be rotated by a motor. The friction stirrer 90 includes a body 91. One end of the body 91 is provided with a probe 92. The clamping jig positions the two workpieces 94 to be joined, the friction stirrer 90 is positioned and rotated, and the friction stirrer 90 is lowered, so that the rotating probe 92 extends into the gap between the two workpieces 94, the probe 92 and The two workpieces 94 are frictionally heated, and the probe 92 is moved along the workpiece 94 to be engaged, and the probe 92 is used to transfer the heat required by the joint to complete the engagement of the workpiece 94.

In the above, the friction stir welding process can eliminate crack defects generated during the welding process, and the alloying elements are not lost due to evaporation, and the formation of the bead region 95 between the workpieces 94 is mainly due to the intense probe 92. The stirring action can obtain a fine crystal structure and reduce the generation rate of the pore defects, thereby improving the mechanical properties of the welded workpiece 94.

However, the frictional heat generated by the probe 92 during the welding process is conducted to the body 91, and is thereby conducted to the jig 93 and the motor, causing a problem that the temperature rises to cause a high loss rate of the friction stirrer 90 and the motor.

The main purpose of the present invention is to provide a friction stirrer head, thereby improving the problem that the friction stirrer head cannot effectively dissipate heat and cause high wear rate.

In order to achieve the foregoing object, the friction stirrer head of the present invention comprises a body and a heat dissipating unit, the heat dissipating unit is disposed on the body, and the body forms a first working portion on one side of the heat dissipating unit, and the body is in the first A first probe is disposed at an end of a working portion.

In the above, the friction stirrer is clamped by the clamp and rotated by the motor, so that the probe of the friction stirrer in rotation rubs with the workpiece to be joined to generate heat energy, and part of the heat energy is transmitted to the body through the probe, further to The heat dissipation unit uses the heat dissipation unit to dissipate heat, reduce the heat energy transmitted to the fixture and the motor, and improve the adverse effects of excessive heat energy on the friction stirrer head, the clamp and the motor, thereby protecting the friction stirrer head, the clamp and the motor and prolonging the service life.

10‧‧‧ Ontology

11‧‧‧Second Operations Department

12‧‧‧First Operations Department

13‧‧‧First probe

14‧‧‧Second probe

15‧‧‧ Cone

20‧‧‧heating unit

21‧‧‧Film fins

30‧‧‧Clamp

40‧‧‧Workpiece

90‧‧‧ Friction stirrer

91‧‧‧Ontology

92‧‧‧Probe

93‧‧‧ fixture

94‧‧‧Workpiece

95‧‧‧Belt area

Figure 1 is a schematic front plan view of a first preferred embodiment of the friction stirrer of the present invention.

Figure 2 is a side plan view showing the combination of the first preferred embodiment of the friction stirrer of the present invention.

Figure 3: Partial enlargement of the first preferred embodiment of the friction stirrer of the present invention schematic diagram.

Fig. 4 is a front plan view showing the combination of a second preferred embodiment of the friction stirrer of the present invention.

Fig. 5 is a schematic view showing the state of use of the first preferred embodiment of the friction stirrer of the present invention.

Figure 6 is a schematic view showing the state of use of the existing friction stirrer.

Referring to FIG. 1 to FIG. 3 , a preferred embodiment of the friction stirrer head of the present invention comprises a body 10 and a heat dissipation unit 20 . The heat dissipation unit 20 is disposed on the body 10 , and the body 10 is disposed on the heat dissipation unit. Two working portions are formed on both sides of the working portion 20, and probes are disposed at the ends of the two working portions, and the two working portions are respectively a first working portion 12 and a second working portion 11, and the two probes are respectively the first probe 13 With the second probe 14, the first probe 13 is connected to the first working portion 12, and the second probe 14 is connected to the second working portion 11.

In the above, the heat dissipating unit 20 includes a plurality of heat dissipating fins 21 connected in series. The heat dissipating unit 20 may be integrally formed on the main body 10, or the heat dissipating unit 20 may be detachably assembled to the main body. 10, in addition, the material of the heat dissipation unit 20 and the material of the body 10 may be the same or different. If the material of the heat dissipation unit 20 is different from the material of the body 10, the heat dissipation unit 20 and the body 10 are separately processed and processed. As shown in FIG. 4, the body 10 is a cylindrical member. In another embodiment of the present invention, a tapered portion 15 is respectively disposed at both ends of the body 10.

In a state in which the heat dissipating unit 20 is detachably assembled to the body 10, the heat dissipating unit 20 has a plurality of heat dissipating fins 21, and the heat dissipating fins 21 include a body having a hole for forming a hole in the body. Slightly smaller On the outer diameter of the body 10, the heat dissipating fins 21 are assembled to the body 10 by the principle of thermal expansion and contraction, the heat dissipating fins 21 are heated and expanded, and the heat dissipating fins 21 are sleeved to the body 10, and the fins are to be dissipated. 21 can be tightly wrapped around the body 10 after shrinking.

Referring to FIG. 5, the second working portion 11 of the body 10 of the friction stirrer head is provided with a clamp 30, and the heat dissipating fins 21 are exposed to the clamp 30. The friction stirrer head can be further rotated by a motor. The workpiece 40 to be joined is positioned by a clamping jig in which the first probe 13 of the first working portion 12 is movable along the workpiece 40 to be engaged, and the workpiece 40 is frictionally heated, solid-stirred, Extrusion mixing and cooling and bonding of the workpiece 40 to be joined, wherein a part of the heat generated by the frictional heat generation is conducted upward to the body 10 and the heat dissipation unit 20 via the first probe 13 , and is dissipated by the heat dissipation fins 21 of the heat dissipation unit 20 . The heat transmitted to the second working portion 11, the jig 30, and the motor is reduced.

When the heat dissipating unit 20 is assembled on the body 10, when the friction stirrer is in the welding operation, the heat dissipating fins 21 and the body 10 simultaneously generate thermal expansion, because the outer diameter of the body 10 is larger than the aperture of the assembling holes of the heat dissipating fins 21. The expanded outer diameter of the body 10 is still greater than or equal to the aperture of the assembly hole of the heat dissipating fin 21, so that the heat dissipating fin 21 is not loosened.

After the friction stirrer is used for a period of time, the first probe 13 is worn to a certain extent and needs to be replaced, the operator can remove the friction stir head from the clamp 30 and flip it, so that the first working part of the body 10 12 is clamped by the jig 30, and the heat dissipating fin 21 and the second working portion 11 and the second probe 14 of the body 10 are exposed to the jig 30, and the workpiece 40 to be joined is welded by the second probe 14.

After the second probe 14 is worn to a degree of replacement for a period of time, the friction stirrer head can be removed from the jig 30, and the friction stirrer head worn at both ends can be reworked by the implement to form the first probe 13 and the first probe 14 The two probes 14, the friction stir head after forming, can be reused until the length of the friction stir head has been short enough to be stably clamped by the clamp 30.

In summary, the heat dissipating fins 21 of the heat dissipating unit 20 of the friction stirrer can effectively dissipate heat, reduce heat energy transmitted to the body 10, the clamp 30, and the motor, thereby protecting the friction stirrer head, the clamp 30 and the motor, and prolonging the service life. In addition, the friction stirrer head further has a first probe 13 and a second probe 14 disposed at two ends of the body 10, so that the friction stirrer head can be used in both ends to improve the utility, and the friction stirrer head can be worn after being worn. Repeated molding and multiple use, reducing consumables, reducing costs and providing good economic benefits.

10‧‧‧ Ontology

11‧‧‧Second Operations Department

12‧‧‧First Operations Department

13‧‧‧First probe

14‧‧‧Second probe

15‧‧‧ Cone

20‧‧‧heating unit

21‧‧‧Film fins

Claims (10)

A friction stirrer includes a body and a heat dissipating unit, the heat dissipating unit is disposed on the body, and the body forms a first working portion on one side of the heat dissipating unit, and the body is provided at an end of the first working portion First probe. The friction stirrer of claim 1, wherein the heat dissipating unit is integrally formed on the body. The friction stirrer of claim 1, wherein the heat dissipating unit is detachably assembled to the body. The friction stirrer of any one of claims 1 to 3, wherein the heat dissipating unit comprises a plurality of heat dissipating fins connected in series. The friction stirrer of any one of claims 1 to 3, wherein the body forms a second working portion on a side of the heat radiating unit with respect to the first working portion, and a second working portion is provided at an end of the second working portion. Second probe. The friction stirrer of claim 4, wherein the body forms a second working portion on a side of the heat radiating unit with respect to the first working portion, and a second probe is disposed at an end of the second working portion. The friction stirrer of any one of claims 1 to 3, wherein the body is provided with a tapered portion at each end adjacent to the body. The friction stirrer head of claim 6, wherein the body is respectively provided with a tapered portion at two ends adjacent to the body. The friction stirrer of any one of claims 1 to 3, wherein the system is a cylindrical member. The friction stirrer head of claim 6, wherein the system is a cylindrical member.