Servo-type composite die forging system of ultralong pipe head flange

Abstract

The invention relates to a servo-type composite die forging system of an ultralong pipe head flange. The servo-type composite die forging system comprises a main machine body, an inner die, a transmission part, an outer die part, a heating mechanism and a feeding mechanism, wherein the feeding mechanism is used for converting the rotating motion of a servo motor to the rectilinear motion through a ball screw assembly and linearly feeding a pipe preform body which is clamped by a clamp, the inner die makes rectilinear motion at another speed through transmission part, an appropriate ratio of the two speeds is maintained, the pipe preform body is heated to a given temperature through the heating mechanism and gradually fills a cavity through the axial feeding motion so as to complete a gathering process, the inner die and the outer die are replaced, the inner die makes a reversing motion to complete an upsetting process, so that a purpose for forming the end flange of the pipe can be achieved. A connector body structure which is welded on a traditional pipe is omitted, so that the pipe quality is greatly improved, and the servo-type composite die forging system is environment-friendly; the forming process can be controlled by the servo motor, so that the gathering and upsetting process can be continuously realized, the pipe can be formed in one step after being clamped, and the efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of metal plastic forming, and in particular relates to a servo-type composite die forging system for a super-long pipe head flange. Background technique [0002] The air braking system of railway freight cars is very important to the driving safety of freight cars, and the connection method of the brake pipe system largely determines the quality of the braking system. Among the piping connection methods, flange connection is the most widely used and mature solution. The traditional flange connection method is to weld the joint body to both ends of the stainless steel pipe system, put the flange on the joint body, and then tighten the flange with bolts. However, there are many disadvantages in this method, for example, the welding between the joint body and the pipe fittings will cause environmental pollution. In addition, poor welding quality is likely to cause cracks and leakage, or even breakage, which s...

AI Technical Summary

Problems solved by technology

However, there are many shortcomings in this method, such as the welding between the joint body and the pipe fittings will cause environmental pollution

In addition, poor welding quality is likely to cause cracks, leakage, or even breakage, which seriously affects driving safety.

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