CN203155858U - Expansion pipe expanding device for copper pipe in air conditioner heat exchanger - Google Patents
Expansion pipe expanding device for copper pipe in air conditioner heat exchanger Download PDFInfo
- Publication number
- CN203155858U CN203155858U CN 201320041650 CN201320041650U CN203155858U CN 203155858 U CN203155858 U CN 203155858U CN 201320041650 CN201320041650 CN 201320041650 CN 201320041650 U CN201320041650 U CN 201320041650U CN 203155858 U CN203155858 U CN 203155858U
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- Prior art keywords
- copper pipe
- expanding
- heat exchanger
- spring
- expanding machine
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Abstract
An expansion pipe expanding device for a copper pipe in an air conditioner heat exchanger comprises an expanding rod, a template, a sleeve, an expanding machine and an expanding ball, wherein the template, the sleeve, the expanding machine and the expanding ball are all connected to the expanding rod in series. The expanding machine is composed of an upper part, a spring and a lower part. Two ends of the spring are respectively sleeved on the outer side of the upper part and the outer side of the lower part and welded together. A buffering zone is formed between the upper part and the lower part. Step surfaces in the lower part of the expanding machine are in circular arc surface transition. When the lower part of the expanding machine collides with the inner wall of the copper pipe, the lower part can rebound upwards to enter the buffering zone, meanwhile, the lower part compresses the spring, the reacting force of the spring pushes the lower part to move downwards and enables the lower part to collide with the inner wall of the copper pipe again, and the process is conducted repeatedly. The impact of the expanding machine on the copper pipe is gentle and frequent, so that the phenomenon that a horn port is cracked and does not expand in place can be excellently avoided.
Description
Technical field
The utility model relates to a kind of expand tube enlarging device for the air-condition heat exchanger copper pipe, belongs to the manufacture field of thin-wall copper pipe.
Background technology
In the air-conditioning manufacture process, copper pipe one end need form horn mouth through expand tube enlarging operation in the air-condition heat exchanger.
As shown in Figure 1, the existing expand tube enlarging device that is used for the air-condition heat exchanger copper pipe comprises expander roll 1, template 2, sleeve 3, mouth expander 4, bloated ball 5.Wherein, template 2, sleeve 3, mouth expander 4, the ball 5 that expands all are connected on the expander roll 1; Adopt the conical surface 401 transition between the cascaded surface of mouth expander 4.
Before carrying out expand tube enlarging operation, the fixing and copper pipe 21 for the treatment of the expand tube flared end of heat exchanger 20 vertically up.Expand tube enlarging device is motion rapidly downwards, and the conical surface 401 and the conical surface 401 of expand ball 5, mouth expander 4 impact copper pipe 21 inwalls with the lower part, and copper pipe 21 is formed shape shown in the dotted line among the figure by the expand tube enlarging.
But the copper pipe of different wall, after the expand tube enlarging, can be inconsistent because shrinking, it is low that the size of appearing has height to have, and deviation can reach 3-5mm.In addition, the copper pipe that wall thickness is thinner can occur also that horn mouth splits or do not diffuse into the position, causes the decline of production efficiency and the product quality of air-conditioning.
The utility model content
The utility model is to solve the problems referred to above that copper pipe occurs in the air-condition heat exchanger in expand tube enlarging operation.
For this reason, the utility model provides a kind of expand tube enlarging device for the air-condition heat exchanger copper pipe, comprise expander roll, template, sleeve, mouth expander, bloated ball, wherein template, sleeve, mouth expander, the ball that expands all are connected on the expander roll, it is characterized in that: above-mentioned mouth expander is made up of top, spring, bottom, the two ends of spring are separately fixed at the outside of upper and lower, form buffering area between the upper and lower.
Expand tube enlarging device of the present utility model is motion rapidly downwards, and bloated ball enters copper pipe inside; When the bottom of mouth expander and copper pipe inwall bump, can rebound and upwards enter buffering area in the bottom; Simultaneously, bottom compression spring, spring reaction is tried hard to recommend moving bottom and is moved downward and make itself and copper pipe inwall to clash into again, so repeatedly.Mouth expander is gentle and frequent to the impact of copper pipe, can avoid bell-mouthed preferably and split and do not diffuse into the position.
As further optimization, the expand tube enlarging device for the air-condition heat exchanger copper pipe of the present utility model is further characterized in that: adopt the arc surface transition between the cascaded surface in the bottom of above-mentioned mouth expander.Contact-making surface is bigger when this arc surface position and the collision of copper pipe inwall, and the impact strength that the copper pipe inwall is subjected to can be littler, has therefore also reduced bell-mouthed cracking chance.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 has adopted axial half sectional view for the existing structural representation that is used for the expand tube enlarging device of air-condition heat exchanger copper pipe; For clarity sake, the part parts have been omitted;
Fig. 2 is the structural representation of the expand tube enlarging device for the air-condition heat exchanger copper pipe of the present utility model, has adopted axial half sectional view; For clarity sake, the part parts have been omitted.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 2, be used for the expand tube enlarging device of air-condition heat exchanger copper pipe, comprise expander roll 1, template 2, sleeve 3, mouth expander 4, bloated ball 5.Wherein, template 2, sleeve 3, mouth expander 4, the ball 5 that expands all are connected on the expander roll 1; Mouth expander 4 is made up of top 41, spring 42, bottom 43, and the two ends of spring 42 are enclosed within the outside of top 41 and bottom 43 respectively and weld together, and forms buffering area 44 between top 41 and the bottom 43; Adopt arc surface 431 transition between the cascaded surface in the bottom of mouth expander.
Before carrying out expand tube enlarging operation, the fixing and copper pipe 21 for the treatment of the expand tube flared end of heat exchanger 20 vertically up.This expand tube enlarging device is motion rapidly downwards, and the ball 5 that expands enters copper pipe 21 inside; When the bottom 43 of mouth expander 4 and copper pipe 21 inwalls bump, bottom 43 can bounce-back upwards enter buffering area 44; Simultaneously, bottom 43 compression springs 42, the reaction force of spring 42 promotes bottom 43 and moves downward and make itself and copper pipe 21 inwalls to clash into again, so repeatedly.The impact of 4 pairs of copper pipes 21 of mouth expander is gentle and frequent, can avoid bell-mouthed preferably and split and do not diffuse into the position.In addition, adopt arc surface 431 transition between the cascaded surface in the bottom 43 of mouth expander, contact-making surface is bigger when these arc surface 431 positions and the collision of copper pipe 21 inwalls, and the impact strength that copper pipe 21 inwalls are subjected to can be littler, therefore also reduced bell-mouthed cracking chance.
More than be one of embodiment of the present utility model, for those skilled in the art, do not spend performing creative labour, on the basis of above-described embodiment, can do multiple variation, can realize the purpose of this utility model equally.But this variation obviously should be in the protection domain of claims of the present utility model.
Claims (2)
1. the expand tube enlarging device that is used for the air-condition heat exchanger copper pipe, comprise expander roll (1), template (2), sleeve (3), mouth expander (4), bloated ball (5), wherein template (2), sleeve (3), mouth expander (4), the ball (5) that expands all are connected on the expander roll (1), it is characterized in that: above-mentioned mouth expander (4) is made up of top (41), spring (42), bottom (43), the two ends of spring (42) are separately fixed at the outside of top (41) and bottom (43), form buffering area (44) between top (41) and bottom (43).
2. the expand tube enlarging device for the air-condition heat exchanger copper pipe according to claim 1 is characterized in that: adopt arc surface (431) transition between the cascaded surface in the bottom of above-mentioned mouth expander.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041650 CN203155858U (en) | 2013-01-27 | 2013-01-27 | Expansion pipe expanding device for copper pipe in air conditioner heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041650 CN203155858U (en) | 2013-01-27 | 2013-01-27 | Expansion pipe expanding device for copper pipe in air conditioner heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203155858U true CN203155858U (en) | 2013-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320041650 Expired - Fee Related CN203155858U (en) | 2013-01-27 | 2013-01-27 | Expansion pipe expanding device for copper pipe in air conditioner heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203155858U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841786A (en) * | 2014-02-13 | 2015-08-19 | 珠海格力电器股份有限公司 | Pipe expander and flaring sleeve thereof |
| CN105618600A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Tube diameter expansion device |
| CN110712004A (en) * | 2019-09-24 | 2020-01-21 | 福建聚光精密件制造有限公司 | Machining equipment and machining method for bell-mouth copper pipe |
| CN111283105A (en) * | 2020-03-21 | 2020-06-16 | 陈寿全 | Central air conditioning alloy connecting pipe fitting processing die |
-
2013
- 2013-01-27 CN CN 201320041650 patent/CN203155858U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841786A (en) * | 2014-02-13 | 2015-08-19 | 珠海格力电器股份有限公司 | Pipe expander and flaring sleeve thereof |
| CN105618600A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Tube diameter expansion device |
| CN105618600B (en) * | 2014-10-28 | 2017-12-26 | 中国石油化工股份有限公司 | Caliber expansion gear |
| CN110712004A (en) * | 2019-09-24 | 2020-01-21 | 福建聚光精密件制造有限公司 | Machining equipment and machining method for bell-mouth copper pipe |
| CN111283105A (en) * | 2020-03-21 | 2020-06-16 | 陈寿全 | Central air conditioning alloy connecting pipe fitting processing die |
| CN111283105B (en) * | 2020-03-21 | 2020-12-01 | 江苏火龙电器股份有限公司 | Central air conditioning alloy connecting pipe fitting processing die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170613 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20210127 |