Design method of forming cutter for any-pipe-diameter tail end structure of automobile radiator core

Abstract

The invention discloses a design method of forming cutter for an any-pipe-diameter tail end structure of an automobile radiator core, which comprises the following steps: acquiring the overall dimension parameters of a processed radiator core body flat pipe, and determining the pipe diameter and the wall thickness of the flat pipe; wherein the size parameters comprise the inner diameter L of the flat pipe, the wall thickness t of the flat pipe and the inner wall distance h of the flat pipe; according to the appearance characteristics of the tail end structure of the rounded hexagonal prism frustum and the pipe diameter size and the wall thickness of the flat pipe, the machining part of the forming cutter is designed into a middle-layer step surface and upper and lower layers of step surfaces, and the thickness and the appearance size of the step surfaces are designed respectively; designing the transition between the upper and lower layer step surfaces and the transition connection between the middle layer step surface and the plane of the cutter body according to the design requirements of an extrusion forming mold by utilizing the thicknesses and the overall dimensions of the middle layer step surface and the upper and lower layer step surfaces, so as to obtain the size parameters of each transition fillet; And according to the thickness and the overall dimension of the stepsurface, the dimension of each transition fillet and the dimension of the machine tool cutter base, the overall dimension of the cutter body is designed, so that the dimension design of the whole cutter is completed.

Description

technical field [0001] The invention relates to a method for designing a forming cutter, in particular to a method for designing a forming cutter for an end structure of an arbitrary pipe diameter of an automobile radiator core. Background technique [0002] The core body of the automobile radiator is an indispensable and important part in the cooling system of the automobile water-cooled engine. The working efficiency of the radiator even leads to its failure. The traditional flat tube can no longer meet the performance requirements of the monomer and the whole vehicle. The new flat tube of the automobile radiator with the end structure design has become an industry trend. Under the background of a large number of processing requirements , the demand for processing equipment and processing tools will gradually increase, so it is necessary to propose a design method for the end structure forming tool of the radiator core with any diameter. [0003] Common heat sink end stru...

AI Technical Summary

Problems solved by technology

[0002] The core body of the automobile radiator is an indispensable and important part in the cooling system of the automobile water-cooled engine. The working efficiency of the radiator even leads to its failure. The traditional flat tube can no longer meet the performance requirements of the monomer and the whole vehicle. The new flat tube of the automobile radiator with the end structure design has become an industry trend. Under the background of a large number of processing requirements , the demand for processing equipment and processing tools will gradually increase, so it is necessary to propose a design method for the end structure forming tool of the radiator core with any diameter

[0003] Common heat sink end structure forming tools such as patent CN208099121U, the notch is set in the middle of the blade mouth and the transition between the notch and the blade mouth on both sides is through the guide arc I, the overall roughness of the blade is easier to control, by reducing its The roughness can effectively reduce the resistance when flaring, but the width difference between the two steps is small, and the processed end structure cannot improve the hydraulic performance of the end of the flat tube.

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