Stirring head temperature measuring structure for friction stir welding of robot

Abstract

The invention belongs to the technical field of friction stir welding of robots and particularly relates to a stirring head temperature measuring structure for friction stir welding of a robot. The stirring head temperature measuring structure comprises a stirring head and a stirring pin arranged at the end part of the stirring head; the stirring head is provided with at least one shaft shoulder thermocouple mounting hole and a plurality of thermocouple mounting holes at the stirring pin; the test ends of the shaft shoulder thermocouple mounting holes extend from the side wall of the stirring head to a shaft shoulder; the plurality of thermocouple mounting holes at the stirring pin are uniformly distributed along the circumferential direction; the test ends of the thermocouple mounting holes at the stirring pin extend from the side wall of the stirring head to the axis of the stirring pin and are distributed along the axis of the stirring pin in a gradient manner. According to the stirring head temperature measuring structure disclosed by the invention, temperature distribution of the welding process can be effectively monitored by measuring the temperature of a welding area; meanwhile, the welding process can be effectively guided and welding parameters are optimized by temperature measurement.

Description

technical field [0001] The invention belongs to the technical field of robot friction stir welding, in particular to a temperature measuring structure of a robot friction stir welding stirring head. Background technique [0002] As a green welding technology, friction stir welding is widely used in aviation, aerospace, shipbuilding, high-speed rail and many other fields. Due to the large working space of robots, robot friction stir welding is an important direction for the combination of friction stir welding technology and robot equipment. It will effectively improve the automation and work efficiency of welding equipment, and is conducive to the flexibility and systematization of welding processes. Welding of large and complex curved thin-walled plates. [0003] In order to adapt to the development trend of international aerospace technology, domestic aerospace manufacturing enterprises are also actively using friction stir welding to weld fuel tanks. The application and...

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a robot friction stir welding stirring head temperature measurement structure to solve the current problem of difficulty in collecting the temperature of the robot friction stir welding weld zone, which can complete the temperature measurement of the stirring head spindle during high-speed rotation. At the same time, the temperature measurement method of this structure can further study the temperature transfer of the friction stir welding stirring head, and can be used as a temperature input to study the influence of temperature transfer on the sensitive components inside the robot spindle

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