What are the basic requirements for the design of 3D flexible welding fixture?

The 3D  flexible welding tooling fixture is the process equipment required for the correct positioning and firm clamping of the weldment, which facilitates the assembly and welding of the weldment and guarantees the structural accuracy of the weldment. The following is the basic request for the design of 3D flexible welding fixture.　　The ancient welding fixtures may improve product quality, reduce labor intensity of workers, and accelerate welding production to achieve mechanization and automation. It plays a very important role.　　 1. The standardization, generalization and modularization of welding fixtures should be adopted as much as possible to adopt modular design with strong interchangeability.　　 2. Welding fixtures should have sufficient strength and rigidity. Tooling fixtures have to be subjected to a variety of forces when they are put into use in production, so tooling fixtures should have sufficient strength and rigidity.　　3. It is convenient for the loading and unloading of weldments. During operation, it should be considered that the product can be smoothly taken out of the fixture after assembly tack welding or welding, and it must be ensured that the product is not infringed when it is turned over or lifted.　　4. Reliability of clamping. When clamping, it can not damage the positioning position of the workpiece and ensure that the shape and size of the product conform to the requirements of the drawing. It can neither allow the workpiece to loosen and slip, nor make the restraint of the workpiece excessively large and cause greater restraint stress.　　 5. Good workmanship. The designed fixture should be convenient for installation, production and operation, and convenient for testing, repairing and replacing the vulnerable machine. When designing, it is necessary to consider factors such as the existing clamping energy source, hoisting ability and installation site in the workshop to reduce the cost of fixture production.　 6. Mobility of welding tooling operation. The application of welding tooling should ensure enough space for assembly and welding, so that the operator has a good line of sight and operating environment, and the whole process of welding and production is in a stable working condition.