Friction stir welding temperature detection device capable of being wirelessly charged

The utility model relates to a friction stir welding temperature detection device capable of being charged wirelessly. The friction stir welding temperature detection device comprises a temperature detection module, a wireless communication module and a wireless power supply module. Wherein the wireless power supply module adopts an electromagnetic induction coupling mode to provide electric energy for each electronic component in the device, the temperature detection module obtains temperature data through a temperature sensor embedded in a temperature measurement hole of a friction stir welding main shaft, and the temperature data is converted into a digital signal after being processed by a temperature measurement chip; and related data are sent to an upper computer through the wireless communication module by adopting a radio frequency technology. The device integrates data acquisition, wireless power supply and signal transmission, realizes on-line acquisition of related data in the friction stir welding