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文章编号：1001-4934(2017)05-0036-03
Die and Mould Technology No. 5 2017
新型手动弯管模具设计
李娟
（常州铁道高等职业技术学校轨道交通系，江苏常州213000）
摘要：一种空调水管总成需要将其直管预弯180°后焊接在散热器上，然后再对管子进行弯曲。由于水管总成的管子有预先弯曲，并有散热片焊接在管子上，其结构复杂，无法在自动弯管机上加工，常规手动弯管模亦不能满足加工要求。针对焊接水管总成的特点，设计了新型手动弯管模具，弯管模具包括肘节式压紧机构、滑块压弯机构、定位机构等装置，可实现总成铝管的多个弯角的一次性装夹、分步弯曲。弯曲过程顺畅、省力，成形的管子走向稳定，外形饱满，无褶皱、夹伤等缺陷。设计的新型弯管模具，解
决了焊接总成管子的弯曲难题，取得了良好的经济效益。关键词：水管总成；新型；手动弯管模具
中图分类号：TG386
文献标识码：B
Design of the new manual tube-bending die
LI Juan
Abstract: A kind of air conditioning tube assembly is formed by bending the straight tube to 18o', and then welding the bended tube on the radiator, and at last conducting the subse-quent bending. With thc pre-bending process and the cooling fin welded on the tube, struc-ture of the assembly is very complex and cannot be processcd on automatic tube bender or by using the conventional manual tube-bending die. Therefore, according to the characteristics of the welded tube assembly, a new manual tube-bending die was designed. The new tube-bending die includes a toggle clamping mechanism, a bending slide block mechanism, a positioning device and so forth. The one-time clamping and the step-by-step bending of multiple corners in the aluminum tube assembly can be realized with the die. In addition, the bending process is smooth and force saving and the shape of the formed tube is stable with no defects such as folds and clamping de-fects. Thc designed ncw type of tube-bending die solves the bending problem of the welded tube assemblyandachievesgoodeconomicbenefits
Keywords:watertubeassembly;newtype;manualtube-bcndingdie
由一根经弯曲的铝管和散热器片焊接而成，管
0引言
图1所示的零件是一种发动机水管总成，收稿日期：2017-02-06
作者简介：李娟（1981一），女，讲师。万方数据
子直径为12mm，壁厚为1.0mm。管子前端的弯曲是在焊接后完成的，其弯曲前的半成品如图2所示。一根直管经弯曲180°后穿人散热