Frame, Cabin, and Cargo Bed — How Three Separate Pieces Come Together on One Line
A pickup is not a unibody vehicle. It has a separate frame. Longitudinal beams and cross members are riveted on the frame line. Leaf springs, front and rear axles, and the spare tire carrier are mounted to the frame. The painted cabin is lifted onto the frame via hoist. The cargo bed arrives from the other side.
The frame cart has a tilting function. When installing chassis components from below, the frame tilts so operators work at chest height instead of overhead. Cabin marriage is the tightest station on the pickup line. Laser-assisted positioning keeps offset ≤2mm — miss the locating holes, and the cabin does not seat.
Cargo bed tooling accommodates different lengths: 1.4 to 2 meters. 6 to 10 minutes per unit, 30,000 to 100,000 units per year.
Technical Specifications
Applicable Models: Body-on-frame pickup trucks with separate chassis frame; cargo bed lengths 1.4–2.0m; applicable to both single-cab and double-cab configurations; annual capacity 30,000–100,000 units.
Line Layout: Three-stage assembly — frame line (longitudinal beam and cross member riveting, leaf spring, axle, and spare tire mounting), cabin marriage (painted cabin lifted onto frame via hoist with laser-assisted alignment), cargo bed marriage (bed arrives from opposite direction and is positioned by adjustable tooling).
Core Equipment: Tilting frame cart (rotates frame for ergonomic chassis component installation from below); electric hoist for cabin lifting; laser-assisted positioning system (offset tolerance ≤2mm) for cabin-to-frame alignment; adjustable cargo bed tooling accommodating different bed lengths (1.4–2.0m).
Key Technical Features: Frame cart with tilting function allows chassis components to be installed from above when frame is rotated — eliminates overhead work and improves ergonomics. Cabin marriage is the tightest station — laser-assisted positioning keeps offset ≤2mm; if the locating holes are missed, the cabin does not seat. Three independent sub-assemblies (frame, cabin, cargo bed) converge on the main line, each from a different direction.
Production Metrics: Cycle time 6–10 minutes per unit; annual capacity 30,000–100,000 units; cabin-to-frame offset tolerance ≤2mm; cargo bed length range 1.4–2.0m; tilting frame reduces operator strain during chassis assembly.
