Valve body assembling production line

The invention provides a valve body assembling production line, and mainly relates to the field of workpiece assembling. A valve body assembling production line comprises a material arranging channel, a positioning platform, a rubber sheet feeding mechanism and a mounting mechanism, a material pushing channel is arranged at the tail end of the material arranging channel, a material pushing cylinder is arranged at the end of the material pushing channel, clamp cylinders are arranged on the two sides of the positioning platform, a material pushing belt is arranged below the positioning platform, an extending frame is arranged above the clamp cylinders, and an extending cylinder and an extending sliding rail are arranged on the extending frame. The rubber feeding mechanism comprises a stock bin, a feeding cylinder is arranged on one side of the stock bin, the mounting mechanism comprises a linear displacement mechanism, a lifting mechanism is arranged on the linear displacement mechanism, a feeding rod is arrang