Pressing device for stirring frictional welding and method

Abstract

The invention discloses a pressing device for stirring frictional welding and a method. The pressing device comprises an air cylinder and an air cylinder support. The air cylinder is fixedly arrangedon the front portion of the air cylinder support. The rear portion of the air cylinder support is connected with a stirring head main shaft of stirring frictional welding equipment. A sliding groove is formed in the side wall of the lower portion of the air cylinder support. A sliding block is arranged on the sliding groove in a matched manner. The sliding block is fixedly connected with the output end of an air cylinder main shaft in the air cylinder. A rolling wheel support is connected to the lower portion of the sliding block. A rolling wheel capable of rotating is connected to the other end of the rolling wheel support. The working method of the pressing device completes pressing of workpieces through multiple steps. The pressing device for stirring frictional welding is installed onthe stirring head main shaft of the stirring frictional welding equipment, and can move synchronously along with a stirring head, in the moving process, the pressing device is located ahead of the stirring head to ensure flatness of a welding area or a welding face of the stirring head, then it is ensured that defects of welding quality are avoided, and production quality of a battery box of a new-energy vehicle is ensured.

Description

technical field [0001] The invention relates to a compacting device and method, in particular to a friction stir welding compacting device and method. Background technique [0002] The thermal deformation of friction stir welding will cause local warping of the aluminum profile during the welding process, and the aluminum profile is a hollow structure, and the warping of the profile will cause the risk of friction stir welding weld penetration. When producing battery boxes for new energy vehicles, the aluminum profiles warp due to welding thermal deformation of the battery box, resulting in friction welding defects, such as weld bead cracks, pores, etc., which affect the welding quality of the product. In the face of this situation, in the prior art, the method of pressing with a pressing plate is generally used to deal with it. There are two cases of pressing with a pressing plate. One way is to manually compress with a pressing plate. The production efficiency of this manu...

AI Technical Summary

Problems solved by technology

[0002] The thermal deformation of friction stir welding will cause local warping of the aluminum profile during the welding process, and the aluminum profile is a hollow structure, and the warping of the profile will cause the risk of welding through the friction stir welding

When producing battery boxes for new energy vehicles, the aluminum profiles of the battery box are warped due to welding heat deformation, resulting in friction welding defects, such as weld bead cracks, pores, etc., which affect the welding quality of the product

In the face of this situation, in the prior art, the method of pressing with a pressure plate is generally used to deal with it. There are two cases of pressing with a pressure plate. One way is to manually compress with a pressure plate. The production efficiency of this manual compression is low , the labor cost is too high; another way is to use automatic tooling to compress, but the automatic tooling is very expensive, especially in the field of lightweight battery boxes for new energy vehicles, because there are many types of battery boxes and different shapes, different Automatic tooling corresponds to matching and pressing, which not only affects production efficiency but also increases production cost

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