Combined dovetail guide expanding cone

Abstract

The invention discloses a combined dovetail guide expanding cone. The combined dovetail guide expanding cone comprises a cone parent body and a plurality of dovetail guide sliding plates. The cone parent body adopts a regular frustum of a prism, and the number of edges of a bottom surface of the regular frustum of the prism is an even number. A connecting hole connected with a lubricating sleeve and a plurality of groups of lubricating hole inlets are arranged in an end surface of a large end of the cone parent body. Each side surface of the cone parent body is provided with a lubricating holeoutlet, and the lubricating hole outlets are connected with the corresponding lubricating hole inlets. Each side surface of the cone parent body is provided with a dovetail guide sliding plate, and two side surfaces of the dovetail guide sliding plate and the side surface of the cone parent body form a dovetail structure. A lubricating oil outlet hole is arranged in the dovetail guide sliding plate and is connected with the lubricating hole outlet in the installation side surface of the dovetail guide sliding plate. By using the expanding cone, a split dovetail guide structure is adopted, processing difficulty of the cone can be effectively reduced in a split mode, a processing period is shortened, manufacturing cost is reduced, and a rate of finished products and maintainability are improved; maintenance cost is low, and the maintenance is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of diameter expanding equipment, in particular to a diameter expanding cone used for metal pipe diameter expanding equipment. Background technique [0002] The mechanical expanding machine belongs to metal pipe shaping equipment. During the processing of high-grade metal pipes, it is necessary to use the mechanical expanding machine to expand the diameter of the pipe, so as to reduce the Bauschinger effect, improve the yield strength and dimensional accuracy, and can also weld Quality is checked. The expansion cone is the core component of the expansion machine, and the performance of the expansion cone directly affects the efficiency and operating costs of the pipe production line. Its working principle is to use the relative movement between the expanding cone and the outer wedge-shaped sector to force the radial expansion of the wedge-shaped sector expanding mold, and the force of the inner cone to act o...

AI Technical Summary

Problems solved by technology

On the one hand, the production cycle of the monolithic structure cone is long. Once a defect occurs, the feasibility of maintenance is extremely low, which leads to production stagnation and great downtime losses.

Images