CN101722243A - Method for expansion copper pipe - Google Patents
Method for expansion copper pipe Download PDFInfo
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- CN101722243A CN101722243A CN200810184310A CN200810184310A CN101722243A CN 101722243 A CN101722243 A CN 101722243A CN 200810184310 A CN200810184310 A CN 200810184310A CN 200810184310 A CN200810184310 A CN 200810184310A CN 101722243 A CN101722243 A CN 101722243A
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Abstract
The invention relates to the technical field of the manufacturing of the pipelines of an air conditioning system and particularly discloses a method for expanding a copper pipe. The method for expanding the copper pipe comprises: (1) a pipe expanding process step, which is carried out by a pipe expander provided with a collet; and (2) a flaring process step, in which a flaring kit with a stage-like conical end socket is used for flaring a U-pipe which is expanded by the step (1). In the method, the pipe expanding process and the flaring process are carried out independently and the pipe end side and the elbow side of the U-pipe are fixed and clamped tightly in the pipe expanding process respectively, so the extension of the two ends of the U-pipe are very uniform after the pipe expansion and the U-pipe does not deform; the pipe end side of the U-pipe has no flanging phenomenon after the flaring, the bell-mouthed size is uniform, and the problem of cracking or flaring failure is avoided; and fins do not move between the holding door planets on the two sides of the pipe expanding equipment and the flaring kit, so the traces of damages of the fins are eliminated.
Description
Technical field
The present invention relates to air-conditioning system pipeline manufacturing technology field, and be particularly related to a kind of expansion tube method of copper pipe.
Background technology
As everyone knows, air-conditioning plays an important role in daily life, and winter air-conditioning can be used for warming oneself, and summer air-conditioning can be used for lowering the temperature, and air-conditioning provides comfortable environment for our life.Therefore, people wish to have bought the air-conditioning of high-quality when buying air-conditioning.
Coil pipe is refrigeration or the pipeline that heats medium (freon etc.) circulation as heat exchange device important in the air-conditioning.Coil pipe is equipped with fin outward, and to strengthen heat exchange effect, the wind that blower fan is produced by boasting passes the outer fin of coil pipe and takes away cold or heat, blows in the room through the wind after the variations in temperature so again, and the air-conditioning effect has just been arranged.
Coil pipe is welded to each other by port by many U type pipes to be formed.During making, the fin Cheng Shuhang of defined amount is arranged, dashing accordingly on the fin has a lot of apertures, the two ends of U type pipe are pierced in the aperture, make U type pipe pass each fin again, and then the port of U type pipe is welded accordingly, make coil pipe of the last composition of all U type pipes and fin.Because the caliber of U type pipe is less than the caliber of aperture on the fin, U type pipe just can pass each fin at an easy rate like this, but owing to also having the space between aperture on the fin and the U type pipe, so will cause U type pipe installs insecure in fin, so just need carry out expander to U type pipe, make that aperture and fin closely combine on the tight fin of U type tube stay; And when welding U type pipe port, welding for convenience also needs U type pipe is carried out enlarging, and U type pipe port is expanded into the horn mouth shape, to guarantee welding effect.
Traditional tube expansion technique is to realize by an electric tube expander that mouth expander is housed, with reference to Fig. 1 is the operation chart of traditional tube expansion technique, expander roll 1 outside is provided with traditional mouth expander 2, when concrete operations, at first carry out the expand tube operation, adjust the position of moved cross beam 3, the quantity of expander roll 1, the position of holding door 6 according to the specifications parameter of U type pipe 5, again U type pipe 5 is put into elbow bracket 7, base 8 is in elbow bracket 7 bottoms, shut holding door 6, operate control button then, moved cross beam 3 begins to descend, and bloated 4 enters beginning expand tubes in the U type pipe 5.And then carry out the enlarging operation, in the time will arriving the bottom of U type pipe 5 for bloated 4, moved cross beam 3 is subjected to the effect of mouth expander oil cylinder, make to expand 4 and traditional mouth expander 2 (4 elbow sides that just in time arrive U type pipe 5 that put in place simultaneously even expand, the expansion head of mouth expander 2 just in time all enters the pipe end of U type pipe 5), finish expand tube operation and enlarging operation simultaneously.
Traditional tube expansion technique is owing to a misalignment U type pipe that expands, and bloated head causes the phenomenon of in-flanges, consequently U type pipe end breach easily when going down; Because U type pipe is thinner, poor rigidity, the shrinkage factor of U type pipe is inconsistent behind the expand tube, and U type pipe is after enlarging, or breach, or expands less than mouth; Because U type pipe behind expand tube, exists number of drawbacks and distortion, the qualification rate of product is all lower generally.
Summary of the invention
The object of the present invention is to provide a kind of expansion tube method of copper pipe, the easy breach of U type pipe end, expansion are less than mouth when going down to overcome the bloated head that exists in the present tube expansion technique, and there are difficult problems such as distortion and number of drawbacks in U type pipe.
Problem solved by the invention can realize by the following technical solutions:
A kind of expansion tube method of copper pipe is characterized in that, comprises the steps:
(1) expand tube operation is carried out the expand tube operation with the electric tube expander that is provided with collet;
(2) enlarging operation is the mouth expander of a stepped cone-shaped end with an end, and the U type pipe of step (1) after through the expand tube operation carried out the enlarging operation again.
Described expand tube operation comprises the adjustment operation before the expand tube, in adjusting operation, adjusts the position of moved cross beam, the quantity of expander roll, the position of holding door according to the specifications parameter of U type copper pipe.
After adjusting operation, have one to clamp operation, in clamping operation, in order to prevent that U type copper pipe shrinks in the expand tube process, to move, carry out expand tube with the electric tube expander that is provided with collet, the operation control button, moved cross beam begins to descend, and collet enters the termination of U type copper pipe, and this collet is clamped the termination of U type copper pipe from the outside.
Shrink, move for the elbow side that prevents U type copper pipe in the expand tube process, U type copper pipe is fixed in the elbow bracket with a clamping device.
After clamping operation is exactly the non-contraction tube expanding operation, in the non-contraction tube expanding operation, when the termination that the head that expands is run into U type copper pipe, continues to pressing down.
Enter the expand tube operation that finishes after the non-contraction tube expanding operation, after the head that expands arrived U type pipe bottom and upwards returns, the expand tube operation finished.
Described enlarging operation comprises the adjusting operation before the enlarging, in regulating operation, regulates the position of crossbeam, the quantity of novel mouth expander, the position of holding door according to the specifications parameter adjustment of U type copper pipe.
After regulating operation, also have a fixing operation, in fixing operation,, U type copper pipe is fixed in the elbow bracket with a clamping device in order to prevent U type copper pipe contraction, mobile in the expand tube process.
Fixedly entering no breach enlarging operation after the operation, in no breach enlarging operation, startup mouth expander two-way cylinder expands mouth expander in the copper pipe.
In order to reduce the stress effect of novel mouth expander, carry out enlarging several times.
The non-contraction tube expanding technology is compared the obvious advantage that has with traditional tube expansion technique:
(1) the expand tube first-time qualification rate of tubule footpath coil pipe (diameter 5mm) is brought up to more than 99% by original 80%.
(2) coil pipe of bloated tubule footpath coil pipe (5mm), the especially length of the electric tube expander particularly suitable of non-contraction tube expanding technology more than 1m, and common electric tube expander can't be processed because shrinkage factor is inconsistent.
(3) because tubule footpath coil pipe (5mm) (under the situation that 7mm～9.52mm) performance is identical on year-on-year basis, can saved 30%～40% copper pipe material, so promote the use of the significant of tubule footpath copper pipe at present with other calibers.
Beneficial effect: the expansion tube method of a kind of copper pipe of the present invention, because expand tube operation and enlarging operation are separately independently carried out, and also pipe end side and the elbow side to U type pipe fixes to clamp respectively in the expand tube operation, so the overhang at U type pipe two ends behind expand tube is unusual unanimity all, can not be out of shape; The pipe end side of U type pipe can not cause the in-flanges phenomenon after enlarging, the horn mouth size is also consistent, can not produce breach or the expansion problem less than mouth; And owing to fin can not move between the sandwich door-plate of pipe expanding equipment and enlarging equipment, so the vestige that fin is not damaged.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the operation chart of traditional tube expansion technique;
Fig. 2 is the expansion tube method expand tube process operations schematic diagram of a kind of copper pipe of the present invention;
Fig. 3 is the expansion tube method enlarging process operations schematic diagram of a kind of copper pipe of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to the expansion tube method expand tube process operations schematic diagram of Fig. 2 for a kind of copper pipe of the present invention, be provided with a collet 10 in the outside of expander roll 1, collet 10 is used for clamping from the outside pipe end side of U type pipe 5, in the expand tube process pipe end side of U type pipe 5 is fixed to clamp, in case shrink.When concrete operations, at first,, adjust the height of moved cross beam 3 according to the length of U type pipe 5; According to the width of U type pipe 5, adjust the fixedly position of U type pipe 5 of holding door 6 then; Adjust the quantity of expander roll according to U type pipe 5 quantity.Again U type pipe 5 is put into elbow bracket 7, base 8 is shut holding door 6 in elbow bracket 7 bottoms, and at this moment collet 10 is in relaxation state, and electric tube expander two-way cylinder 9 is in position topmost.
Operate control button then, moved cross beam 3 begins to descend, and collet 10 enters the termination of U type pipe 5, and electric tube expander two-way cylinder 9 begins action.4 sink when expanding, run into the termination of U type pipe 5, and to pressing down, this moment, U type pipe 5 elbow end was clamped by elbow bracket 7.Collet 10 is in clamped position, and moved cross beam 3 no longer descends simultaneously.4 enter in the U type pipe 5 when expanding, this moment, U type pipe 5 was clamped by collet 10 owing to expand.Expand 4 continuation downwards, and the two ends of U type pipe 5 are in is fully clamped state, is a kind of shrinkage-free expand tube.
Expand behind the bottom of 4 arrival U type pipes 5, the expand tube operation finishes substantially, and at this moment bloated 4 begins upwards to return, and then electric tube expander two-way cylinder 9 unclamps, and collet 10 is in relaxation state.Take out the qualified U type pipe of expand tube then, prepare following one enlarging operation.
Be the expansion tube method enlarging process operations schematic diagram of a kind of copper pipe of the present invention with reference to figure 3, an end of novel mouth expander 13 is a stepped pyramidal structure, and this stair-stepping pyramidal structure is used for the pipe end of U type pipe 5 is expanded into the horn mouth shape, with welding after convenient.When concrete operations, at first, regulate the position of crossbeam 12 according to the specifications parameter adjustment of U type pipe 5, the quantity of novel mouth expander 13, the position of holding door 6, again U type pipe 5 is put into elbow bracket 7, base 8 is in elbow bracket 7 bottoms, shut holding door 6, at this moment starting mouth expander two-way cylinder 11 expands novel mouth expander 13 in the pipe end of U type pipe 5, treat that the stepped pyramidal structure on the novel mouth expander 13 all enters in the pipe end of U type pipe 5, at this moment enlarging operation finishes substantially, novel then mouth expander 13 returns, and opens holding door 6, takes out the qualified U type pipe of enlarging.
When concrete operations,, reach more desirable effect in the enlarging operation in order to reduce mouth expander to the stress effect of U type pipe and fin and the distortion that causes also can be carried out enlarging as the case may be several times.
The enlarging equipment that uses among the present invention, pipe expanding equipment all can play a role to 1～4 row U type pipe simultaneously, and 1～30 U type pipe is drawn together in wherein every package.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. the expansion tube method of a copper pipe is characterized in that, comprises the steps:
(1) expand tube operation is carried out the expand tube operation with the electric tube expander that is provided with collet;
(2) enlarging operation is the mouth expander of a stepped cone-shaped end with an end, and the U type pipe of step (1) after through the expand tube operation carried out the enlarging operation again.
2. the expansion tube method of a kind of copper pipe according to claim 1, it is characterized in that, described expand tube operation comprises the adjustment operation before the expand tube, in adjusting operation, adjusts the position of moved cross beam, the quantity of expander roll, the position of holding door according to the specifications parameter of U type copper pipe.
3. the expansion tube method of a kind of copper pipe according to claim 2, it is characterized in that, after adjusting operation, have one to clamp operation, in clamping operation,, carry out expand tube with the electric tube expander that is provided with collet in order to prevent that U type copper pipe shrinks in the expand tube process, to move, the operation control button, moved cross beam begins to descend, and collet enters the termination of U type copper pipe, and this collet is clamped the termination of U type copper pipe from the outside.
4. the expansion tube method of a kind of copper pipe according to claim 2 is characterized in that, shrinks, moves for the elbow side that prevents U type copper pipe in the expand tube process, with a clamping device U type copper pipe is fixed in the elbow bracket.
5. according to the expansion tube method of claim 2 or 3 described a kind of copper pipes, it is characterized in that, is exactly the non-contraction tube expanding operation after clamping operation, in the non-contraction tube expanding operation, when the termination that the head that expands is run into U type copper pipe, continues to pressing down.
6. according to the expansion tube method of the described a kind of copper pipe of each claim of claim 1 to 4, it is characterized in that, enter the expand tube operation that finishes after the non-contraction tube expanding operation, after the head that expands arrived U type pipe bottom and upwards returns, the expand tube operation finished.
7. the expansion tube method of a kind of copper pipe according to claim 1, it is characterized in that, described enlarging operation comprises the adjusting operation before the enlarging, in regulating operation, regulates the position of crossbeam, the quantity of novel mouth expander, the position of holding door according to the specifications parameter adjustment of U type copper pipe.
8. the expansion tube method of a kind of copper pipe according to claim 7, it is characterized in that a fixing operation in addition after regulating operation is in fixing operation, in order to prevent that U type copper pipe shrinks in the expand tube process, to move, U type copper pipe is fixed in the elbow bracket with a clamping device.
9. the expansion tube method of a kind of copper pipe according to claim 8 is characterized in that, fixedly entering no breach enlarging operation after the operation, in no breach enlarging operation, startup mouth expander two-way cylinder expands mouth expander in the copper pipe.
10. according to the expansion tube method of the described a kind of copper pipe of each claim of claim 7 to 9, it is characterized in that,, carry out enlarging several times in order to reduce the stress effect of novel mouth expander.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810184310A CN101722243A (en) | 2008-10-17 | 2008-12-02 | Method for expansion copper pipe |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810201362.1 | 2008-10-17 | ||
| CN200810184310A CN101722243A (en) | 2008-10-17 | 2008-12-02 | Method for expansion copper pipe |
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| Publication Number | Publication Date |
|---|---|
| CN101722243A true CN101722243A (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810184310A Pending CN101722243A (en) | 2008-10-17 | 2008-12-02 | Method for expansion copper pipe |
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| CN (1) | CN101722243A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947602A (en) * | 2010-09-03 | 2011-01-19 | 中山市奥美森工业有限公司 | Fully-automatic pipe expander |
| CN102527861A (en) * | 2011-12-17 | 2012-07-04 | 王崇高 | Pipe expanding method for ensuring size of heat exchanger |
| CN102825150A (en) * | 2012-09-15 | 2012-12-19 | 王崇高 | Tube expander capable of effectively controlling dimension of heat exchanger |
| CN103170551A (en) * | 2013-03-26 | 2013-06-26 | 重庆伟略智能系统集成技术有限公司 | Air-conditioner heat dissipation copper pipe drawing-inserting mechanism |
| CN104128517A (en) * | 2014-08-05 | 2014-11-05 | 中山市奥美森工业有限公司 | Multi-station pipe expander |
| CN104190806A (en) * | 2014-08-08 | 2014-12-10 | 中江机电科技江苏有限公司 | U-shaped pipe expander |
| CN106363100A (en) * | 2016-11-28 | 2017-02-01 | 中江机电科技江苏有限公司 | Tube expander with the adjustable central distance |
| CN108326165A (en) * | 2018-02-11 | 2018-07-27 | 高晓生 | The expanding device of minor diameter high pressure capillary |
| CN109013935A (en) * | 2018-09-12 | 2018-12-18 | 珠海格力智能装备有限公司 | Flaring method and device |
| CN109465354A (en) * | 2018-10-15 | 2019-03-15 | 长沙格力暖通制冷设备有限公司 | Air conditioner phi 5 heat exchanger full-deepened tube expansion forming process, tube heat exchanger and air conditioner |
| CN110609514A (en) * | 2019-10-19 | 2019-12-24 | 上海傲卡自动化科技有限公司 | Robot air conditioner expand tube control system based on network communication |
| CN111299979A (en) * | 2020-03-24 | 2020-06-19 | 重庆志齐机械制造有限公司 | Preparation process of cold extrusion piston tube |
| CN112387881A (en) * | 2020-10-25 | 2021-02-23 | 郭小求 | U-shaped pipe flaring device |
| CN112475046A (en) * | 2020-11-23 | 2021-03-12 | 深圳市豪华科技有限公司 | Flaring die in duplex position |
| CN115815436A (en) * | 2022-12-12 | 2023-03-21 | 北京理工大学珠海学院 | Pipe expanding device for improving production efficiency |
-
2008
- 2008-12-02 CN CN200810184310A patent/CN101722243A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947602A (en) * | 2010-09-03 | 2011-01-19 | 中山市奥美森工业有限公司 | Fully-automatic pipe expander |
| CN101947602B (en) * | 2010-09-03 | 2013-02-13 | 中山市奥美森工业有限公司 | Fully-automatic pipe expander |
| CN102527861A (en) * | 2011-12-17 | 2012-07-04 | 王崇高 | Pipe expanding method for ensuring size of heat exchanger |
| CN102527861B (en) * | 2011-12-17 | 2014-10-29 | 王崇高 | Pipe expanding method for ensuring size of heat exchanger |
| CN102825150A (en) * | 2012-09-15 | 2012-12-19 | 王崇高 | Tube expander capable of effectively controlling dimension of heat exchanger |
| CN103170551A (en) * | 2013-03-26 | 2013-06-26 | 重庆伟略智能系统集成技术有限公司 | Air-conditioner heat dissipation copper pipe drawing-inserting mechanism |
| CN104128517A (en) * | 2014-08-05 | 2014-11-05 | 中山市奥美森工业有限公司 | Multi-station pipe expander |
| CN104190806A (en) * | 2014-08-08 | 2014-12-10 | 中江机电科技江苏有限公司 | U-shaped pipe expander |
| CN104190806B (en) * | 2014-08-08 | 2016-08-17 | 中江机电科技江苏有限公司 | U-tube tube expander |
| CN106363100A (en) * | 2016-11-28 | 2017-02-01 | 中江机电科技江苏有限公司 | Tube expander with the adjustable central distance |
| CN108326165A (en) * | 2018-02-11 | 2018-07-27 | 高晓生 | The expanding device of minor diameter high pressure capillary |
| CN109013935A (en) * | 2018-09-12 | 2018-12-18 | 珠海格力智能装备有限公司 | Flaring method and device |
| CN109465354A (en) * | 2018-10-15 | 2019-03-15 | 长沙格力暖通制冷设备有限公司 | Air conditioner phi 5 heat exchanger full-deepened tube expansion forming process, tube heat exchanger and air conditioner |
| CN109465354B (en) * | 2018-10-15 | 2021-06-29 | 长沙格力暖通制冷设备有限公司 | Air conditioner phi 5 heat exchanger full-deepened tube expansion forming process, tube heat exchanger and air conditioner |
| CN110609514A (en) * | 2019-10-19 | 2019-12-24 | 上海傲卡自动化科技有限公司 | Robot air conditioner expand tube control system based on network communication |
| CN111299979A (en) * | 2020-03-24 | 2020-06-19 | 重庆志齐机械制造有限公司 | Preparation process of cold extrusion piston tube |
| CN111299979B (en) * | 2020-03-24 | 2021-11-23 | 重庆志齐机械制造有限公司 | Preparation process of cold extrusion piston tube |
| CN112387881A (en) * | 2020-10-25 | 2021-02-23 | 郭小求 | U-shaped pipe flaring device |
| CN112475046A (en) * | 2020-11-23 | 2021-03-12 | 深圳市豪华科技有限公司 | Flaring die in duplex position |
| CN112475046B (en) * | 2020-11-23 | 2022-04-19 | 重庆市华青汽车配件有限公司 | Flaring die in duplex position |
| CN115815436A (en) * | 2022-12-12 | 2023-03-21 | 北京理工大学珠海学院 | Pipe expanding device for improving production efficiency |
| CN115815436B (en) * | 2022-12-12 | 2023-06-09 | 北京理工大学珠海学院 | Pipe expanding device capable of improving production efficiency |
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Open date: 20100609 |