CN102886585B - Tube bundle locating fixture of heat exchanger and assembly method thereof - Google Patents
Tube bundle locating fixture of heat exchanger and assembly method thereof Download PDFInfo
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- CN102886585B CN102886585B CN201110209080.8A CN201110209080A CN102886585B CN 102886585 B CN102886585 B CN 102886585B CN 201110209080 A CN201110209080 A CN 201110209080A CN 102886585 B CN102886585 B CN 102886585B
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- flat tube
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Abstract
The invention relates to a tube bundle locating technique method for manufacturing heat exchangers and aims to solve the problem of low operating efficiency when a bundle of flat tubes are separated and inserted into a slot or a locating mechanism one by one. The invention provides a tube bundle locating fixture of a heat exchanger; the tube bundle locating fixture comprises a bracket and a group of locating pieces; and a limiting rope or a limiting spring is arranged between adjacent locating pieces respectively. When the locating pieces are in a tightening state, locating pins at the front end of the locating pieces can be simultaneously inserted into micropores of the bundle of overlapped flat tubes. And when the locating pieces are in a stretching state, the locating pieces drive the flat tube bundle to stretch and the tube pitch reaches a predetermined spacing. According to the tube bundle locating fixture, a group of tube bundles can be stretched automatically to the predetermined tube spacing and positions at one time without one-by-one manual locating, thereby improving the assembly efficiency of the tube bundle locating greatly.
Description
Technical field
The present invention relates to the manufacturing process of heat exchanger, the tube bank positioning process method especially in parallel-flow heat exchanger manufacture.
Background technology
Parallel-flow heat exchanger is made up of porous flat pipe, radiating fin and header.Flat tube two ends insert left header and right header respectively, utilize the baffle for separating that is arranged on left header and right header and form series winding passage.Fin and header surface application have solder and brazing flux, and whole core body holder, is formed by soldering oven integral solder.Parallel-flow heat exchanger is mainly used in air conditioning for automobiles in early days, have also been obtained in recent years apply widely in fields such as business air conditioner, domestic air conditioning, coolers.
Flat tube, fin and header, in process, first assemble by parallel-flow heat exchanger, then enter soldering oven welding.
Existing a kind of assembly technology is, first every root flat tube is inserted one by one slot on header to form framework, and then radiating fin is put into the space between flat tube.Due to the spacing of flat tube and the height of radiating fin roughly equal, therefore between flat tube space load fin time very difficult, efficiency of assembling is very low.Sometimes the elasticity of flat tube also will be utilized to push body open certain distance laterally, and with the spacing between temporary expansion flat tube to load fin, this is operating difficulties not only, and can bring hidden danger of quality.Further, along with the carrying out of fin assembling, between most of flat tube, enclose fin, remaining body be pushed open just more difficult operation, also more easily quality problems occur.
Existing another kind of Assembling Production technique is, first every root flat tube is inserted one by one locating dowel with slot to form framework, then radiating fin is put into the space between flat tube, then take off the locating dowel of both sides and install header.This assembly technology, the slot spacing in locating dowel can slightly larger than the slot spacing on header.Correspondingly, insert the tube pitch after flat tube also just slightly larger than the height of radiating fin, there is certain surplus, be thus easier to load radiating fin to the space between flat tube.But complete fin assembling, after taking off the locating dowel of both sides, with instrument, flat tube and fin are being compressed, to eliminate the surplus in the gap between flat tube and fin, the slot spacing of the spacing of flat tube and header is matched, header could be installed.And for large-scale parallel-flow heat exchanger, when compressing because flat tube and fin are interference fit, often there is certain skew in the position of a lot of root flat tube and the slot of header, every root flat tube all be inserted corresponding slot also very difficult, usually need to adjust one by one.
Above-mentioned existing Assembling Production technique, and just in the new technology of research and development, a requisite process is by a branch of flat tube separately, inserts the slot on header or the slot in locating dowel or other detent mechanism.Current production technology, this process is, by manual, flat tube is inserted slot or detent mechanism one by one, and operation inconvenience, inefficiency, needs improving technique method to enhance productivity.
Summary of the invention
The object of the invention is in order to solve a branch of flat tube separately inserted one by one slot or detent mechanism time operating efficiency low problem, there is provided a kind of for a branch of flat tube being inserted quickly and accurately the slot of setting or the pipe bundle positioning tool of detent mechanism and assembly method, structural design advantages of simple, significantly improves the production efficiency of tube bank orientation assemble process.
Technical problem of the present invention is solved by following technical proposals:
A pipe bundle positioning tool for heat exchanger, comprises support and one group of spacer, is all provided with limit rope or limit spring, it is characterized in that between adjacent positioned sheet:
1) spacer is rack-mount, and can sliding axially along support;
2) pilot pin that the position that the front end of spacer is provided with one or more and flat tube micropore matches, can insert in one or more micropores of flat tube;
3) when the limit rope between spacer or limit spring are in and tighten up state, a pitch of fins for spacer is equal with the thickness d t of flat tube, therefore the pilot pin of one group of spacer front end can be inserted simultaneously in the micropore of a branch of flat tube stacked;
4), when the limit rope between spacer or limit spring are in open configuration, a pitch of fins for spacer reaches set distance ds.
It should be noted that, as shown in accompanying drawing 3, accompanying drawing 6, a pitch of fins alleged in patent of the present invention, refers to the spacing on adjacent two panels spacer top, includes the thickness of spacing between adjacent two panels spacer and a slice spacer; Pipe distance alleged in patent of the present invention, refers to the spacing of adjacent two flat tube end faces, includes the thickness of spacing between adjacent two flat tubes and a flat tube.
Usually, ds=dt+ (1.0 ~ 1.5) × df.Wherein: ds is the pipe distance of setting, and dt is the thickness of flat tube, and df is the height of the fin that will insert.
A kind of pipe bundle positioning tool of described heat exchanger, the shape of described spacer is that rear portion is thicker and front portion is thinner, it is characterized in that: the thickness at spacer rear portion is equal with the thickness d t of flat tube, the thickness d n of the pilot pin of spacer front portion is less than the aperture di of flat tube micropore, and pilot pin can be inserted in the micropore of flat tube.
It should be noted that, the micro-pore shape in flat tube is generally the combination of square hole, oblong aperture, circular hole, square hole and circular hole, and micropore size alleged in patent of the present invention, refers to the length of side of square hole, the oblong aperture length of side at flat tube thickness direction, the diameter of circular hole.
A pipe bundle positioning tool for described heat exchanger, the thickness d n of spacer is uniform, and is less than the aperture di of flat tube micropore, and pilot pin can be inserted in the micropore of flat tube.Also be provided with pad between spacer, the thickness d n of spacer is equal with the thickness d t of flat tube with the thickness d w sum of pad, that is: dt=dw+dn.
Thus, when the position-limit mechanism between spacer tightens up, a pitch of fins for spacer is equal with the thickness of flat tube.
A pipe bundle positioning tool for described heat exchanger, the spacer of end is provided with handle, for the axis of other spacer along support being pulled open.All be provided with limit rope between adjacent positioned sheet, the spacing of the slot in the length of limit rope and header or locating dowel matches, and the pitch of fins after spacer is pulled open reaches set distance ds.
The assembly method of the pipe bundle positioning tool of described heat exchanger, comprises the following steps:
1) tightened up by the spacer of described pipe bundle positioning tool, a pitch of fins for spacer is equal with the thickness d t of flat tube;
2) pilot pin of group spacer front end of after described tightening up is inserted in the side micropore of a branch of flat tube stacked, another group tighten up after the pilot pin of spacer front end insert in the opposite side micropore of described flat tube bundle;
3) pull the handle on described spacer, spacer drives flat tube bundle to open, and pipe is apart from reaching set spacing ds;
4) take off the spacer of flat tube both sides, and the flat tube bundle opened is inserted in the slot in header or locating dowel.
A pipe bundle positioning tool for described heat exchanger, be provided with alignment pin on the bracket, for being pinned by spacer after spacer is tightened up, now a pitch of fins for spacer is equal with the thickness d t of flat tube.Limit spring is provided with, for the axis of spacer along support being opened between described spacer.The spacing of the slot in length when limit spring is in free state and header or locating dowel matches, and the pitch of fins after spacer is opened reaches set distance ds.
The assembly method of the pipe bundle positioning tool of described heat exchanger, comprises the following steps:
1) alignment pin tightened up by the spacer of described pipe bundle positioning tool on rear support pins;
2) pilot pin of described one group of spacer front end of tightening up inserted in the side micropore of a branch of flat tube stacked, the pilot pin of the spacer front end that another group is tightened up is inserted in the opposite side micropore of described flat tube bundle;
3) open the alignment pin on support, limit spring flicks, and drive spacer and flat tube bundle to open, pipe is apart from reaching set spacing ds;
4) take off the spacer of flat tube both sides, and the flat tube bundle opened is inserted in the slot in header or locating dowel.
Effective effect of the present invention is, by pipe bundle positioning tool, disposable one group of tube bank is automatically flared to the tube pitch and position that preset, and does not need manual location one by one, thus significantly improves the efficiency of assembling of tube bank location.
Accompanying drawing explanation
Fig. 1 is the structural representation of flat tube bundle;
Fig. 2 is the structural representation of duct type heat exchanger;
Fig. 3 is the top view of the pipe bundle positioning tool of embodiment one;
Fig. 4 is the structural representation of the pipe bundle positioning tool of embodiment one;
Fig. 5 is the structural representation (tightening up state) of the assembling process of the pipe bundle positioning tool of embodiment one;
Fig. 6 is the structural representation (open configuration) of the assembling process of the pipe bundle positioning tool of embodiment one;
Fig. 7 is the top view of the pipe bundle positioning tool of embodiment two;
Fig. 8 is the structural representation of the pipe bundle positioning tool of embodiment two.
In figure: 1. flat tube, 2. fin, 3. header; 101. supports, 102. spacers, 103. pilot pins, 104. limit ropes, 105. handles; 201. supports, 202. spacers, 203. pilot pins, 204. pads, 205. limit spring, 206. alignment pins.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of flat tube bundle.The flat tube manufacturing heat exchanger usually in have one group of micropore, flat tube thickness is dt, and micropore internal diameter is di.Normally, flat tube thickness d t is 1.0 ~ 3.0mm, and micropore internal diameter di is 0.5 ~ 2.0mm.When assembling flat tube bundle, first take out a branch of flat tube stacked as shown in Figure 1, flat tube is inserted one by one the slot in header or locating dowel, form installation frame, then between flat tube, fin is loaded, obtain the assembly be made up of header, flat tube and fin as shown in Figure 2, after setting, send into soldering oven integral solder.Fin is usually by the continuously extruded bending and forming of aluminium foil, and the height of fin is df.Normally, aluminium foil height df is 6 ~ 15mm.This folded bent structure of aluminium foil make its height and length direction stressed after all can deform, therefore first assemble the assembly technology of header after assembling fin, slot on flat tube and header will be brought to misplace and be difficult to the problem of installing.
Embodiment one:
The present embodiment provides a kind of embodiment and assembly method of tube bank quick position frock of parallel-flow heat exchanger.
The present embodiment provides a kind of pipe bundle positioning tool of heat exchanger, comprises support 101 and one group of spacer 102, is provided with limit rope 104 between adjacent positioned sheet.Its structure is as shown in accompanying drawing 3, accompanying drawing 4, and in accompanying drawing 3 (A), spacer is in the state of tightening up, and in accompanying drawing 3 (B), spacer is in open configuration.
The pilot pin 103 that the position that the front end of spacer 102 is provided with one or more and flat tube micropore matches, can insert in one or more micropores corresponding to flat tube.The shape of spacer 102 is that rear portion is thicker and front portion is thinner: the thickness at spacer 102 rear portion is equal with the thickness d t of flat tube, the thickness d n of the pilot pin 103 of spacer 102 front portion is less than the aperture di of flat tube micropore, makes pilot pin 103 insert in the micropore of flat tube smoothly.
One group of spacer 102 is arranged on support 101, can sliding axially along support 101.All be provided with limit rope 104 between adjacent positioned sheet 102 to be connected, the spacing of the slot in the length of limit rope 104 and header or locating dowel matches, and the pitch of fins after spacer 102 is pulled open reaches set distance ds.The spacer 102 of end is provided with handle 105, and the axis of spacer 102 along support 101 just can tighten up or pull open by push-and-pull handle 105.
When limit rope 104 between spacer 102 is in and tightens up state, spacing is not had between adjacent positioned sheet 102, now a pitch of fins for spacer 102 is equal with the thickness d t of flat tube, therefore location 103 pin of one group of spacer front end can be inserted in the micropore of a branch of flat tube stacked simultaneously.When limit rope 103 between spacer 102 is in open configuration, a pitch of fins for spacer 102 reaches set distance ds.
Usually, ds=dt+ (1.0 ~ 1.5) × df, wherein: ds is the pipe distance of setting, and dt is the thickness of flat tube, and df is the height of the fin that will insert.This makes the space between the flat tube that assembles be greater than slightly the height of fin, is easy to assemble fin.
The assembly method of the pipe bundle positioning tool of the heat exchanger described in the present embodiment, comprises the following steps:
1) tightened up by the spacer 102 of pipe bundle positioning tool, a pitch of fins for spacer 102 is equal with the thickness d t of flat tube;
2) as shown in Figure 5, the pilot pin 103 of group spacer front end of after described tightening up is inserted in the side micropore of a branch of flat tube stacked, another group tighten up after the pilot pin of spacer front end insert in the opposite side micropore of described flat tube bundle;
3) as shown in Figure 6, pull the handle 105 on described spacer, spacer 102 drives flat tube bundle to open, and makes pipe apart from reaching set spacing ds;
4) take off the spacer 102 of flat tube both sides, and the flat tube bundle opening up into setting spacing is inserted in the slot in header or locating dowel.
Embodiment two:
The present embodiment provides embodiment and the assembly method of the tube bank quick position frock of another kind of heat exchanger.
The present embodiment provides a kind of pipe bundle positioning tool of heat exchanger, comprises support 201 and one group of spacer 202, pad 204, is all provided with limit spring 205 between adjacent positioned sheet.Its structure is as shown in accompanying drawing 7, accompanying drawing 8, and in accompanying drawing 7 (A), spacer is in the state of tightening up, and in accompanying drawing 7 (B), spacer is in open configuration.
The pilot pin 203 that the position that the front end of spacer 202 is provided with one or more and flat tube micropore matches, can insert in one or more micropores corresponding to flat tube.In the present embodiment, the thickness d n of spacer 202 is uniform, and is less than the aperture di of flat tube micropore, and pilot pin 203 can be inserted in the micropore of flat tube.Also be provided with pad 204 between spacer 202, the thickness d n of spacer is equal with the thickness d t of flat tube with the thickness d w sum of pad, that is: dt=dw+dn.Thus when the position-limit mechanism between spacer tightens up, a pitch of fins for spacer is equal with the thickness of flat tube, the pilot pin 203 of one group of spacer front end can be inserted in the micropore of a branch of flat tube stacked simultaneously.
One group of spacer 202 is arranged on support 201, can sliding axially along support 201.Limit spring 205 is provided with, for the axis of spacer 202 along support 201 being opened between adjacent positioned sheet 202.Support 201 is provided with alignment pin 206, and for being pinned by spacer after spacer 202 is tightened up, to offset the elastic force of limit spring 205, now a pitch of fins for spacer is equal with the thickness d t of flat tube.Open alignment pin 206, limit spring 205 drives flat tube bundle to open under spring force.The spacing of the slot in length limit spring 205 is in free state after opening time and header or locating dowel matches, and the pitch of fins after spacer 202 is opened reaches set distance ds.
Usually, ds=dt+ (1.0 ~ 1.5) × df, wherein: ds is the pipe distance of setting, and dt is the thickness of flat tube, and df is the height of the fin that will insert.This makes the space between the flat tube that assembles be greater than slightly the height of fin, is easy to assemble fin.
The assembly method of the pipe bundle positioning tool of the heat exchanger described in the present embodiment, comprises the following steps:
1) as shown in accompanying drawing 7 (A), the alignment pin 206 that the spacer 202 of described pipe bundle positioning tool tightens up on rear support 201 is pinned;
2) pilot pin 203 of group spacer 202 of after described tightening up front end is inserted in the side micropore of a branch of flat tube stacked, another group tighten up after the pilot pin of spacer front end insert in the opposite side micropore of described flat tube bundle;
3) as shown in accompanying drawing 7 (B), open the alignment pin 206 on support, limit spring 205 flicks, and drives spacer 202 and flat tube bundle to open, and makes pipe apart from reaching set spacing ds;
4) take off the spacer 202 of flat tube both sides, and the flat tube bundle opened is inserted in the slot in header or locating dowel.
According to different process programs, can the above-mentioned 3rd) step first loads fin after completing, then implements the 4th) spacer takes off by step, after compressing flat tube and fin, flat tube inserted the slot of header; Also can the above-mentioned 3rd) after step completes, the flat tube bundle entirety directly will opened inserts the slot in header or locating dowel, then installs fin.Different process programs cuts both ways, but these schemes all do not affect enforcement of the present invention and the lifting to tube bank position fixing process efficiency.
Claims (8)
1. a pipe bundle positioning tool for heat exchanger, comprises support and one group of spacer, is provided with limit rope or limit spring, it is characterized in that between adjacent positioned sheet:
1) spacer is rack-mount, can sliding axially along support;
2) pilot pin that the position that the front end of spacer is provided with one or more and flat tube micropore matches, can insert in one or more micropores of flat tube;
3) when the limit rope between spacer or limit spring are in and tighten up state, a pitch of fins for spacer is equal with the thickness of flat tube, therefore the pilot pin of one group of spacer front end can be inserted simultaneously in the micropore of a branch of flat tube stacked;
4), when the limit rope between spacer or limit spring are in open configuration, a pitch of fins for spacer reaches set distance.
2. the pipe bundle positioning tool of heat exchanger according to claim 1, is characterized in that, set pipe meets following relation apart from ds and the thickness d t of flat tube, the height df of fin: ds=dt+ (1.0 ~ 1.5) × df.
3. the pipe bundle positioning tool of heat exchanger according to claim 1, the shape of described spacer is that rear portion is thicker and front portion is thinner, it is characterized in that: the thickness at spacer rear portion is equal with the thickness d t of flat tube, the thickness d n of the pilot pin of spacer front portion is less than the aperture di of flat tube micropore, and pilot pin can be inserted in the micropore of flat tube.
4. the pipe bundle positioning tool of heat exchanger according to claim 1, the thickness of described spacer is uniform, and be less than the aperture di of flat tube micropore, it is characterized in that: be also provided with pad between described spacer, the thickness d n of spacer is equal with the thickness d t of flat tube with the thickness d w sum of pad.
5. the pipe bundle positioning tool of heat exchanger according to claim 1, is all provided with limit rope between described spacer, and the spacer of end is provided with handle, it is characterized in that, the spacing of the slot in the length of limit rope and header or locating dowel matches.
6. based on an assembly method for the pipe bundle positioning tool of heat exchanger as claimed in claim 5, it is characterized in that, comprise the following steps:
1) tightened up by described spacer, a pitch of fins for spacer is equal with the thickness of flat tube;
2) pilot pin of group spacer front end of after described tightening up is inserted in the side micropore of a branch of flat tube stacked, another group tighten up after the pilot pin of spacer front end insert in the opposite side micropore of this flat tube bundle;
3) pull the handle on described spacer, spacer drives flat tube bundle to open, and pipe is apart from reaching set spacing;
4) take off the spacer of flat tube both sides, and the flat tube bundle opened is inserted in the slot in header or locating dowel.
7. the pipe bundle positioning tool of heat exchanger according to claim 1, is provided with alignment pin on the bracket, for being pinned by spacer after spacer is tightened up; All be provided with limit spring between adjacent positioned sheet, it is characterized in that, the spacing of the slot in length when limit spring is in free state and header or locating dowel matches.
8. based on an assembly method for the pipe bundle positioning tool of heat exchanger as claimed in claim 7, it is characterized in that, comprise the following steps:
1) described spacer is tightened up rear alignment pin on described support to pin;
2) pilot pin of described one group of spacer front end of tightening up inserted in the side micropore of a branch of flat tube stacked, the pilot pin of the spacer front end that another group is tightened up is inserted in the opposite side micropore of described flat tube bundle;
3) open the alignment pin on described support, described limit spring flicks, and drive spacer and flat tube bundle to open, pipe is apart from reaching set spacing;
4) take off the spacer of flat tube both sides, and the flat tube bundle opened is inserted in the slot in header or locating dowel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209080.8A CN102886585B (en) | 2011-07-22 | 2011-07-22 | Tube bundle locating fixture of heat exchanger and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209080.8A CN102886585B (en) | 2011-07-22 | 2011-07-22 | Tube bundle locating fixture of heat exchanger and assembly method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102886585A CN102886585A (en) | 2013-01-23 |
| CN102886585B true CN102886585B (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110209080.8A Expired - Fee Related CN102886585B (en) | 2011-07-22 | 2011-07-22 | Tube bundle locating fixture of heat exchanger and assembly method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102886585B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785985B (en) * | 2015-03-31 | 2016-08-24 | 苏州海陆重工股份有限公司 | Pipe positioning tool for cooling coil inside fine ash cooler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561643A (en) * | 1984-12-06 | 1985-12-31 | Ford Motor Company | Rack assembly |
| DE102007020835A1 (en) * | 2006-06-23 | 2008-01-03 | Behr America, Inc., Troy | Heat exchanging device i.e. automotive heat exchanger, for use in e.g. car, has frame elements in frictional connection with header pipe by finger-like projection of pipe, and set of flat pipes in flow connection with pipe |
| CN201455613U (en) * | 2009-07-22 | 2010-05-12 | 新乡豫新车辆换热设备股份有限公司 | Locating mechanism of tube-fin type radiator string piece |
| CN202162530U (en) * | 2011-07-22 | 2012-03-14 | 常州市西屋自动化有限公司 | Pipe bundle positioning tool for heat exchanger |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0710468B2 (en) * | 1988-01-19 | 1995-02-08 | 昭和アルミニウム株式会社 | Flat multi-hole pipe header processing method |
| JPH09243289A (en) * | 1996-03-06 | 1997-09-19 | Calsonic Corp | Heat exchanger having mounting bracket |
-
2011
- 2011-07-22 CN CN201110209080.8A patent/CN102886585B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561643A (en) * | 1984-12-06 | 1985-12-31 | Ford Motor Company | Rack assembly |
| DE102007020835A1 (en) * | 2006-06-23 | 2008-01-03 | Behr America, Inc., Troy | Heat exchanging device i.e. automotive heat exchanger, for use in e.g. car, has frame elements in frictional connection with header pipe by finger-like projection of pipe, and set of flat pipes in flow connection with pipe |
| CN201455613U (en) * | 2009-07-22 | 2010-05-12 | 新乡豫新车辆换热设备股份有限公司 | Locating mechanism of tube-fin type radiator string piece |
| CN202162530U (en) * | 2011-07-22 | 2012-03-14 | 常州市西屋自动化有限公司 | Pipe bundle positioning tool for heat exchanger |
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| CN102886585A (en) | 2013-01-23 |
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Address after: 601, room 213164, block A, building 2, Chong Mo port, No. 18, middle Wu Road, Changzhou, Jiangsu Applicant after: Changzhou Xiwu Automation Co., Ltd. Address before: 213164 room B2515, science and Education Hall, 801 Zhong Wu Zhong Road, Changzhou, Jiangsu Applicant before: Changzhou Xiwu Automation Co., Ltd. |
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