High-energy micro-arc alloying deposition device

The utility model belongs to a metal surface coating preparation technology, and particularly discloses a high-energy micro-arc alloying deposition device. The deposition platform capable of moving freely controls the stepping motor to move the spray gun according to the pressure change between the electrode bar and the workpiece, the distance between the electrode bar on the spray gun and the workpiece is adjusted, deposition energy is automatically controlled, and the deposition quality and efficiency are improved. The electrode in the spray gun is a positive electrode, the workpiece is a negative electrode, and coating deposition in any direction and angle in a three-dimensional space is achieved through the deposition platform moving freely. The problem that the coating quality is affected due to the fact that the pressure between the electrode bar and the workpiece cannot be accurately controlled through manual operation is solved, the operation safety and the working accuracy are improved, batch machini