Pipe fitting cold extruding forming machine and forming technology thereof

Abstract

The invention belongs to the technical field of pipe fitting processing, and relates to a pipe fitting cold extruding forming machine and a forming technology of the pipe fitting cold extruding forming machine. The forming machine comprises a frame, a mold locking oil cylinder, an ejection oil cylinder, pushing oil cylinders and auxiliary oil cylinders, and the mold locking oil cylinder, the ejection oil cylinder, the pushing oil cylinders and the auxiliary oil cylinders are arranged in the frame. A through work platform is arranged in the middle of the frame, the ejection oil cylinder is arranged at the position, below the work platform, in the frame, the mold locking oil cylinder is arranged at the position, corresponding to the position above the work platform, in the frame, the pushing oil cylinders are arranged at the positions, on the two sides of the work platform, in the frame respectively, and the auxiliary oil cylinders are arranged on the mold locking oil cylinder and the pushing oil cylinders respectively. In the work process, a lower workpiece mold is placed on the work platform, the mold locking oil cylinder is connected with an upper workpiece mold, the two pushing oil cylinders are connected with water injection devices respectively, the water injection devices are connected with a workpiece in the pushing process, and sealing contact is achieved. A three-way reducing pipe is formed based on the cold extruding technology, operation and forming are easy, environmental protection and high efficiency are achieved, safety is high, and the labor intensity of workers is lowered.

Description

technical field [0001] The invention belongs to the technical field of pipe fitting processing, in particular to a cold extrusion molding machine for pipe fittings and a molding process thereof. Background technique [0002] Existing pipe fittings are generally formed by hot pressing molding equipment, and the required special-shaped pipe fittings are obtained through high-temperature hot-melt deformation. A large amount of fuel is wasted in the heating process. Coke ovens are generally used for heating, which not only causes environmental pollution, but also the working environment for workers is poor and dangerous. High, prone to accidents. In addition, as far as the diameter of the reducer is too large, it needs multiple cycles of heating and deformation before it can be formed, because multiple heating will cause iron oxide to form on the surface of the workpiece and fall off, and the surface of the workpiece has unevenness and needs to be polished. Now the reducin...

AI Technical Summary

Problems solved by technology

Now the reducing tube is formed by heat shrinkage (thick tube becomes thinner tube), and heat shrinkage is completed by extrusion. During the extrusion process, the outer surface of the workpiece will be strained when it rubs against the mold. Grinding is required, so the existing molding technicians have high labor intensity and many processes, which increases the cost of the product, and the product is not beautiful after being polished

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