Forming device of hose elbow

Abstract

The invention provides a forming device of a hose elbow, and belongs to the technical field of machinery. The problem that the strength of a convex ring obtained through an existing machining mode islimited is solved. The forming device of the hose elbow comprises a die, a clamping groove which is concave and in an annular shape is formed in a side wall in the die, the forming device further comprises a first male die, a convex edge which protrudes upwards and is in an annular shape is arranged at the top of the die, and a first groove which is concave and in an annular shape is formed in a lower side face of the first male die; the convex edge extends into the first groove, a first elastic piece is arranged between the top of the convex edge and the bottom of the first groove, and a first forming hole which is concave is formed in the top of the die; the first male die can abut against a top face of the die when overcoming the elastic force of the first elastic piece to move downwards, and a first forming cavity is formed between the lower side face of the first male die and the first forming hole of the die; and the clamping groove, the cavity, the first male die and the first forming hole are coaxially arranged. The forming device of the hose elbow has the advantage of being high in machining efficiency.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a forming device, in particular to a forming device for a hose elbow. Background technique [0002] The hose elbow is mainly used in the fields of air conditioners and the like. It includes a tube body in the shape of a round tube, and the side wall at one end of the tube body has several protruding convex rings arranged at intervals. Existing hose elbows are generally formed by two processing methods: die-casting and red punching. However, the die-casting method is likely to cause pores in the casting, and the workpiece obtained by the red punching method is easy to crack. [0003] For this reason, the applicant has designed a forming process of a hose elbow core, and applied for a Chinese patent (its application number is: 200810120721.0; its authorized announcement number is: CN101362177B), the process steps include: a, material preparation; b. Processing convex ring; c. Tube ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to address the above problems in the prior art, and propose a forming device for a hose elbow, which solves the problem of limited strength of the convex ring obtained by the existing processing method

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