The invention relates to a finish paint
coating assistive device capable of achieving rapid disassembly through a vehicle body auxiliary hole. The device is composed of a locking
handle, a connecting rod, a locking positioning block, a locking column, a locking ring, a magnetic circular ring, a left locking elastic piece, a right locking elastic piece, a structural rod, a door frame limiting block, a connecting block, a door closing locking V-shaped rod, a gravity cylinder, a rotating sleeve, an outer door frame contact ball, a rotating pin, a door closing limiting stop dog, a door opening limiting stop dog, a connecting transverse rod, a structural connecting rod and an inner door frame contact ball. According to the auxiliary tool, an elastic locking structure is adopted, the auxiliary tool can be fixedly installed only by pushing and pulling the locking
handle, the installation mode is simple and convenient, the production efficiency of a
coating workshop is improved, and the production labor cost is saved. The quality defect that paint
slag is generated to pollute a paint film when a vehicle door frame shakes and rubs with the
assistive device during vehicle body transfer is avoided; the accident that the vehicle door is opened accidentally is avoided; and the accident that the auxiliary tool is separated due to upward rotation of the door closing and locking V-shaped rod when the vehicle door is subjected to external tension is avoided.