Welding and milling split blade type stirring head for friction stir welding process

Abstract

The utility model discloses a welding and milling split blade type stirring head for a friction stir welding process, which belongs to the technical field of friction stir welding and comprises a stirring knife handle, a stirring shoulder is arranged on the upper surface of the stirring knife handle, and a mounting threaded column is fixedly mounted on the lower surface of the stirring shoulder. And a stirring needle is fixedly mounted on the upper surface of the stirring shoulder. According to the welding and milling split blade type stirring head for the friction stir welding process, through mutual cooperation of the stirring cutter handle, the stirring shoulder, the stirring needle and the welding and milling blade, hard burrs on the two sides of a welding bead can be automatically removed in the friction stir welding process, the burrs do not need to be removed manually, and the labor cost is effectively saved; the stirring needle and the welding and milling blade are easy and convenient to replace after being abraded, machine adjusting and maintaining time is shortened, machining time is shortened, manufacturing cost is low, the split cutter handle can be used infinitely, cost is greatly saved, and the welding and milling blade can be used twice and is low in use cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of friction stir welding, and particularly relates to a milling and welding split blade type stir head for a friction stir welding process. BACKGROUND

[0002] Friction stir welding is a solid-state joining process, which generates heat through the high-speed rotation of a stir head and friction with the surface of a workpiece to make the material reach a plastic state, thereby realizing welding. It is widely applied in the fields of aerospace and automobile manufacturing; the existing stir head structure is generally composed of a stir shank, a stir shoulder and a stir pin for welding operation; after welding, the existing stir head produces winding and hard and sharp flash on both sides of the weld, so manual scraping with a spatula is required, and then a grinder is used for polishing, which is high in labor cost and labor intensity. SUMMARY

[0003] (I) Technical problem solved

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a milling and welding split blade type stir head for a friction stir welding process, which solves the problem that, after welding, winding and hard and sharp flash is produced on both sides of the weld, so manual scraping with a spatula is required, and then a grinder is used for polishing, which is high in labor cost and labor intensity.

[0005] (II) Technical scheme

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a milling and welding split blade type stir head for a friction stir welding process, comprising a stir shank, wherein the upper surface of the stir shank is provided with a stir shoulder, the lower surface of the stir shoulder is fixedly installed with a mounting threaded column, the upper surface of the stir shoulder is fixedly installed with a stir pin, and the top of the stir shoulder is provided with a milling and welding blade.

[0007] As a further scheme of the utility model, the top of the stir shank is provided with a mounting threaded hole, and the mounting threaded column and the mounting threaded hole are threadedly connected with each other.

[0008] As a further scheme of the utility model, the top of the stir shoulder is provided with a rhombic mounting groove, and the size of the rhombic mounting groove is adapted to the size of the milling and welding blade.

[0009] As a further scheme of the utility model, the top of the stir shoulder and the surface of the milling and welding blade are both provided with a fixed circular hole.

[0010] As a further scheme of the utility model, the stir shank is installed and fixed on a welding device and can be used for an unlimited number of times.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、 this stirring friction welding process's welding milling split blade formula stirrer, through setting up stirring sword handle, stirring shoulder, stirring needle and welding milling blade mutual cooperation can remove the hard burr of welding bead two sides in the stirring friction welding process automatically, need not manual to the burr is spaded, effectively saved the artificial cost, the simple and convenient replacement after the wear of stirring needle and welding milling blade, reduce the machine maintenance time, make the processing time is less, the manufacturing cost is low, split sword handle can use unlimited times, great cost saving, welding milling blade can use twice, and welding milling blade use cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is structure schematic drawing of the utility model;

[0015] Figure 2 It is exploded structure schematic drawing of the utility model,

[0016] In the drawing: 1, stirring sword handle;2, stirring shoulder;3, mounting threaded column;4, stirring needle;5, welding milling blade. DETAILED DESCRIPTION

[0017] The technical scheme of the patent will be further described in detail in combination with specific implementation manners.

[0018] As Figures 1-2 Indicated, the utility model provides a technical scheme: a kind of welding milling split blade formula stirrer of stirring friction welding process, including stirring sword handle 1, the upper surface of stirring sword handle 1 is provided with stirring shoulder 2, the lower surface of stirring shoulder 2 is fixedly installed with mounting threaded column 3, the upper surface of stirring shoulder 2 is fixedly installed with stirring needle 4, the top of stirring shoulder 2 is provided with welding milling blade 5, by stirring sword handle 1, stirring shoulder 2, stirring needle 4 and welding milling blade 5 structure composition, remove the burr of welding bead two sides in stirring welding process, wherein welding milling blade 5 based on actual experimental test result, welding milling blade 5 can use twice.

[0019] Specifically, as Figure 1 And Figure 2As shown, the top of the stirring blade handle 1 is provided with a mounting threaded hole, the mounting threaded column 3 is threadedly connected with the mounting threaded hole, the mounting threaded hole of the top of the stirring blade handle 1 is matched with the mounting threaded column 3, and installation and fixation are more convenient, the top of the stirring shoulder 2 is provided with a rhombic mounting slot, the size of the rhombic mounting slot is matched with the size of the welding milling blade 5, the rhombic mounting slot of the top of the stirring shoulder 2 is matched with the welding milling blade 5, and installation and dismounting of the welding milling blade 5 are more convenient, the top of the stirring shoulder 2 and the surface of the welding milling blade 5 are both provided with fixing round holes, the fixing round holes of the top of the stirring shoulder 2 and the surface of the welding milling blade 5 are convenient for better fixation operation, the welding milling blade 5 can be installed on the stirring shoulder 2 by inserting a fixing screw rod into the fixing round hole, the stirring blade handle 1 is installed and fixed on the welding equipment and can be used unlimited times, and the stirring blade handle 1 is installed on the welding equipment and is convenient for better use.

[0020] The working principle of the utility model is as follows:

[0021] S1, first, the stirring blade handle 1 is installed and fixed on the stirring welding equipment, then the welding milling blade 5 is installed in the rhombic mounting slot of the top of the stirring shoulder 2 and is fixed;

[0022] S2, then the stirring welding equipment can be started to drive the stirring blade handle 1 to rotate, the stirring shoulder 2 is used for focusing heat and saving heat in the stirring welding process, heat dissipation is avoided, heat is insufficient, and welding cracks are caused;

[0023] S3, meanwhile, in the welding process, the stirring needle 4 is inserted into the splicing joint of the workpiece while rotating at a high speed, the stirring needle 4 and the stirring shoulder 2 rotate at a high speed and rub with the welding material to generate heat, so that the material is plasticized, with the movement of the whole stirring head, the highly plasticized material is gradually deposited behind the stirring head, so that the friction stir welding bead is formed;

[0024] S4, with the high-speed rotation of the stirring head, the welding milling blade 5 removes the flash on both sides while moving.

[0025] In summary, the welding milling split blade type stirring head of the friction stir welding process can automatically remove the hard flash on both sides of the welding bead in the friction stir welding process through the cooperation of the stirring blade handle 1, the stirring shoulder 2, the stirring needle 4 and the welding milling blade 5, manual removal of the flash is not needed, the labor cost is effectively saved, the stirring needle 4 and the welding milling blade 5 are simple and convenient to replace after wearing, the machine maintenance time is reduced, the processing time is short, the manufacturing cost is low, the split blade handle can be used unlimited times, the cost is greatly saved, the welding milling blade 5 can be used twice, and the welding milling blade 5 has low use cost.

[0026] In the description of the utility model, it is necessary to explain that, unless another explicit provision and limitation, the term "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through the specific circumstances.

[0027] The above-mentioned preferred embodiments of the patent are described in detail, but the patent is not limited to the above-mentioned embodiments, within the knowledge range possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the patent.

Claims

1. A milling and welding blade type stirring head for friction stir welding process, comprising a stirring handle (1), characterized in that: The upper surface of the stirring handle (1) is provided with a stirring shoulder (2), the lower surface of the stirring shoulder (2) is fixedly installed with a threaded post (3), the upper surface of the stirring shoulder (2) is fixedly installed with a stirring needle (4), and the top of the stirring shoulder (2) is provided with a welding milling cutter (5).

2. The milling and welding split-blade type stirring head for friction stir welding according to claim 1, characterized in that: The top of the stirring handle (1) is provided with a mounting threaded hole, and the mounting threaded post (3) is threadedly connected to the mounting threaded hole.

3. The milling and split-blade stirring head for friction stir welding according to claim 1, characterized in that: The top of the stirring shoulder (2) is provided with a diamond-shaped mounting groove, the size of which is adapted to the size of the welding milling cutter (5).

4. The milling and welding split-blade stirring head for friction stir welding according to claim 1, characterized in that: The top of the stirring shoulder (2) and the surface of the welding milling cutter (5) are both provided with fixing round holes.

5. The milling and split-blade stirring head for friction stir welding according to claim 1, characterized in that: The stirring handle (1) is installed and fixed on the welding equipment and can be used an unlimited number of times.

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