Flexible friction stir welding tool and welding method for improving production efficiency
A friction stir and welding tool technology, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve problems such as high cost and complex structure, achieve low cost, reduce worker fatigue, and improve welding efficiency
Active Publication Date: 2019-09-20
北京世佳博科技集团有限公司
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Problems solved by technology
[0005] However, these two existing technologies rely on sensors to achieve constant pressure control, which has the problems of complex structure and high cost
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[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0034] like figure 1 As shown, the present invention provides a flexible friction stir welding tool that improves production efficiency, including a clamping handle 1, a stirring head 2 and a power driving device. The output end of the power driving device is connected with the clamping handle 1 for driving the clamping handle 1 to rotate, and the power driving device is a motor.
[0035]The clamping handle 1 is cylindrical and is used to carry the stirring he...
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Abstract
The invention provides a flexible friction-stir welding tool capable of improving production efficiency. The tool comprises a clamping handle, a stir head and a power driving device. The bottom of the clamping handle is provided with a cavity inwards, wherein the stir head is inserted in the cavity. The side wall of the clamping handle is provided with an opening. A flat key penetrates in the opening. The circumferential face of the stir head is provided with a groove. The tail end of the flat key is inserted into the groove and fixedly connected with the groove. A gap is formed between the flat key and the opening in the perpendicular direction. By means of the gap, the stir head can move up and down relative to the clamping handle. The power driving device is connected with the clamping handle to drive the clamping handle to rotate. The lower portion of the stir head is extended outwards in the radial direction to form a supporting portion. A gap is reserved between the upper surface of the supporting portion and the lower surface of the clamping handle for containing an elastic part, and the size of the gap can be adjusted through up-down movement of the stir head. The largest size of the gap is equal to the free extension height of the elastic part. The structure is simple, performance is stable and reliable, the structure of existing equipment does not need to be changed, and the cost is greatly reduced.
Description
technical field [0001] The invention relates to the technical field of friction stir welding equipment, in particular to a flexible friction stir welding tool and a welding method for improving production efficiency. Background technique [0002] The stirring head in friction stir welding is regarded as the "core" of friction stir welding. Since the advent of friction stir technology in the early 1990s, friction stir welding technology has continued to develop, and the stirring head for friction stir welding has also been continuously improved. In a short period of more than 20 years of development, the friction stir welding stirring head has developed a variety of different types such as conventional stirring head, double shoulder stirring head, retractable stirring head, static shoulder stirring head and backfill friction stir spot welding stirring head. form. There are many kinds of friction stir welding stirring heads, and the conventional stirring heads are still widel...
Claims
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IPC IPC(8): B23K20/12B23K20/26
Inventor 孙占国丁鹏飞蒋亮
Owner 北京世佳博科技集团有限公司