CN86207862U - 顶弯模具 - Google Patents

顶弯模具 Download PDF

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Publication number
CN86207862U
CN86207862U CN 86207862 CN86207862U CN86207862U CN 86207862 U CN86207862 U CN 86207862U CN 86207862 CN86207862 CN 86207862 CN 86207862 U CN86207862 U CN 86207862U CN 86207862 U CN86207862 U CN 86207862U
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CN
China
Prior art keywords
pipe
die
external diameter
bend pipe
bender
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 86207862
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English (en)
Inventor
陈定安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bending Machine Factory Of Second Engineering Division Of Henan Industrial Equipment Installation Co
Original Assignee
Bending Machine Factory Of Second Engineering Division Of Henan Industrial Equipment Installation Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bending Machine Factory Of Second Engineering Division Of Henan Industrial Equipment Installation Co filed Critical Bending Machine Factory Of Second Engineering Division Of Henan Industrial Equipment Installation Co
Priority to CN 86207862 priority Critical patent/CN86207862U/zh
Publication of CN86207862U publication Critical patent/CN86207862U/zh
Expired - Lifetime legal-status Critical Current

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Abstract

一种顶弯机的模具，用于弯曲直径在13～60毫米的管件。模具起到限制被弯管截面变形的作用。由于模具槽宽略小于被弯管外径，被弯管基本无褶皱，椭圆变形远远低于国家标准。

Description

本实用新型为一种弯管模具，尤其是冷态顶弯机的弯管模具。
冷态顶弯机多用于管件直径为13～16毫米，弯曲半径为3.5～4倍管外径，弯曲角度在0°～110°的工艺中。
现有技术里，弯管机的弯管模具内槽是按照被弯管的外径制作的。这里弯管模起到了使管件弯曲并限制管件截面变形的作用。但由于金属管件有一定的弹性，虽然在弯制过程中管件受到模具限制，没有发生变形，但当模具撤除后，管道被弯曲部分会出现较大的椭圆变形，甚至可能不符合要求。
本实用新型的任务是减少或消除被弯管弯曲部分的椭圆变形。
解决方法是使顶弯模具在槽深约等于被弯管外径二分之一处的槽内部两侧间距小于被弯管外径。内槽的深度不小于被弯管外径的二分之一。
使用这种模具弯制的管件，基本无折皱，椭圆度在2.5～5％之间，低于国家规定的10％的标准。
附图1    为模具正视图
附图2    为模具侧视图。图中（1）为模具，（2）为被弯管件。
当顶弯模具在槽深约等于被弯管外径二分之一处，其内部两侧间距小于被弯管外径0.1～0.2毫米时，效果较好。

Claims (2)

1、一种顶弯模具，模具槽深不小于被弯管外径的二分之一，其特征在于在模具槽深约等于被弯管外径二分之一处，其槽两侧间距小于被弯管外径。
2、如权利要求1所述模具，其特征在于在模具槽深约等于被弯管外径二分之一处其槽两侧间距比被弯管外径小0.1至0.2毫米。
CN 86207862 1986-10-10 1986-10-10 顶弯模具 Expired - Lifetime CN86207862U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 86207862 CN86207862U (zh) 1986-10-10 1986-10-10 顶弯模具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 86207862 CN86207862U (zh) 1986-10-10 1986-10-10 顶弯模具

Publications (1)

Publication Number Publication Date
CN86207862U true CN86207862U (zh) 1987-11-07

Family

ID=4810196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 86207862 Expired - Lifetime CN86207862U (zh) 1986-10-10 1986-10-10 顶弯模具

Country Status (1)

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CN (1) CN86207862U (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100518984C (zh) * 2007-10-31 2009-07-29 江苏沪宁钢机股份有限公司 圆管钢构件弧形冷弯成型模具
CN101296760B (zh) * 2005-10-28 2010-12-08 丰田自动车株式会社 用于校正金属管的方法和校正用的压模具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101296760B (zh) * 2005-10-28 2010-12-08 丰田自动车株式会社 用于校正金属管的方法和校正用的压模具
CN100518984C (zh) * 2007-10-31 2009-07-29 江苏沪宁钢机股份有限公司 圆管钢构件弧形冷弯成型模具

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C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
RN01 Renewal of patent term
C17 Cessation of patent right
CX01 Expiry of patent term