Stamping die for metal tee parts

Abstract

The invention belongs to the field of punching dies and particularly relates to a punching die for metal three-way parts. The die comprises an upper die and a lower die and further comprises a positioning rod, a ball capable of being placed in a tube cavity of a pre-punched part, clamping blocks capable of reciprocating in the radial direction of the positioning rod to clamp the pre-punched part at the positioning rod as well as a punching rod, wherein the punching rod extends from the die surface of the upper die vertically downwards, the outer diameter of the punching rod is equal to or smaller than the inner diameter of the pre-punched part, the punching rod is coaxial with the axis of the positioning rod, and a diagonal plane for pushing the ball from a three-way pre-punched hole in the tube wall of the pre-punched part into a ball retreating hole in one clamping block is arranged at the bottom of the punching rod. The die is large in application range, the production cost can be further reduced while the finished product strength and the surface quality of products are guaranteed, and the material utilization rate can be effectively increased.

Description

technical field [0001] The invention belongs to the field of stamping dies, in particular to a stamping die for metal tee parts. Background technique [0002] Tee is a kind of pipe connector, which is used to install where the pipe has branches. Current metal tee parts are usually manufactured by metal cutting or die casting. As far as the metal cutting method is concerned, it is first necessary to use a milling machine to mill out the shape of the part, and then use a drilling machine to drill out the through holes inside; with this method, the production efficiency is extremely low, and there is more material waste. When the die-casting method is used for the production of metal tees, the types of materials for the parts are limited. Since the materials suitable for die-casting are mainly certain specific copper and aluminum alloys, the materials required for some parts with special requirements are often not within the scope of the above-mentioned die-casting materials,...

AI Technical Summary

Problems solved by technology

For example, parts that require acid resistance, alkali resistance, and corrosion resistance must use specific nickel alloy materials. Due to their high melting points, such materials are obviously not suitable for die-casting production.

And some materials themselves have relatively low strength, which will also greatly affect the surface quality of finished parts after die-casting

Images