▎ 摘　　要

NOVELTY - The utility model claims an electric welding device for graphene sensor, comprising a bottom plate, a lubricating mechanism; a protective mechanism; the top surface of the bottom plate is provided with a vertical plate; one side of the top surface of the bottom plate on the vertical plate is provided with a rail; the inner side of the rail is slidingly connected with a sliding block; one side of the sliding block is provided with a circular groove; the circular groove is sleeved with a ball; the lubricating mechanism is located at the connecting gap of the sliding block and the ball; the lubricating mechanism comprises a turntable; the turntable is located in the inner part of the sliding block; the turntable passes through the sliding block; and one side of the turntable is located at the outer part of the sliding block; through the set of the turntable, which is good for lubricating the surface of the ball, ensuring the ball in the sliding block of the normal rotation so that the electric welding position of the electric welding machine angle can be adjusted, at the same time, prolonging the service life of the ball and the sliding block; By setting the skid-proof sleeve, increasing the friction force of the surface of the U-shaped rod, improving the stability of the device, and also protecting the U-shaped rod.