Large-scale frame welding processing is currently a relatively large number of welding workpieces. In the process of large-scale frame welding processing, in addition to knowing the welding technology preparation for large-scale frame welding processing and the technical requirements for large-scale frame welding processing, we should also know How to choose a fixture for welding processing of large-scale frames, fixtures play a very important role in machining, and selecting appropriate fixtures for welding and processing large-scale frames can improve processing efficiency and the quality of machined workpieces. So how to choose the fixture for welding processing of large frame?

1. Ensure that the correct geometry and size of the weldment can be obtained after welding.

2. Safe and reliable in use.

3. It is convenient for welders to operate and easy to use.

4. Easy to manufacture, easy to maintain and low cost.

5. The workpiece should be firmly clamped on the fixture, especially when screw clamping is used, the clamping force should be appropriate to prevent shrinkage cracks when the weld is cooled.

6. It is not allowed to correct and correct the workpiece on the fixture to prevent deformation of the fixture and affect the assembly accuracy of the weldment.

7. When using several clamps on one weld at the same time, the pressure of each clamp should be kept the same.

Choosing the right fixture can make the welding process of large frame safer and more reliable, and can better improve the processing efficiency and the quality of the machined workpiece.