The 3D welding platform fixture is a process equipment that accurately positions and clamps the welded parts, facilitating assembly and welding of the welded parts, and meeting the requirements for structural accuracy of the welded parts. Actively promoting and using fixtures and jigs that are compatible with the product structure in modern welding production plays a very important role in improving product quality, reducing labor intensity for workers, and accelerating the mechanization and automation process of welding production.

The operation steps of the fixture:

1. Assemble the two engine lining pipes onto the first strut according to the "strut welding combination" diagram, and place them on the clamp. Position the first strut with the stop pin and baffle, and clamp it with the screw clamp; At the same time, the two lining pipes of the 4th engine are positioned by the pin and clamped by the quick release spiral clamping device.

2. After spot welding, release the quick release spiral clamping device, pull out the pin, and remove it for welding

3. Place the weldment on the clamp again, position the weldment with the stopper pin and baffle, and clamp the weldment with the screw clamp; Afterwards, place the components of nut M6 and horn support on the weldment and position them using the taper pin on the screw clamping mechanism and the groove on the pressure plate of the screw clamping mechanism to clamp them

4. Weld the components of nut M6 and horn support to the support rod on three sides, then loosen all screw clamps. The pressure plate of the screw clamping mechanism that clamps the components of nut M6 and horn support is spring-loaded, and the locating cone pin on it is detached from the welding piece. Then push out the pressure plate to detach one end from the screw of the screw clamping mechanism, rotate the pressure plate to one side of the welding piece, and remove the welding piece.

Precautions for using fixtures, maintenance and upkeep:

1. Before use, check whether the limit size still maintains the correct position;

2. If the wear of the gear pin exceeds the tolerance, it can be polished; If the baffle, pin, and locating cone pin are worn out beyond the tolerance, they can be reassembled and the worn parts can be staggered before continuing to be used.

3. After use, it is necessary to apply anti embroidery oil.