Carriage closing assembly welding work station with automatic demolding function

The invention discloses a compartment closing assembly welding work station with an automatic demolding function, and particularly relates to the field of compartment closing machining. The compartment closing assembly welding work station comprises a compartment closing assembly clamp unit, a demolding vehicle and rail unit, a discharging temporary storage unit and a hoisting unit; the box assembling and assembling clamp unit comprises a box assembling inner mold clamp, a right outer operation platform, a left outer operation platform and a gantry pressing mechanism. The box assembling inner mold clamp comprises an inner rack assembly, a bottom supporting plate assembly, a tail positioning and tensioning rack assembly, a front door lower supporting assembly, a front door side supporting assembly and an inner supporting mechanism assembly. The box closing and assembling clamp unit comprises the bottom plate supporting assembly, the tail positioning and tensioning rack assembly, the front door lower supporting