CN110340245A - A kind of processing method of heat exchange fin, heat exchange fin and finned heat exchanger - Google Patents
A kind of processing method of heat exchange fin, heat exchange fin and finned heat exchanger Download PDFInfo
- Publication number
- CN110340245A CN110340245A CN201810297055.1A CN201810297055A CN110340245A CN 110340245 A CN110340245 A CN 110340245A CN 201810297055 A CN201810297055 A CN 201810297055A CN 110340245 A CN110340245 A CN 110340245A
- Authority
- CN
- China
- Prior art keywords
- formed punch
- heat exchange
- sheet metal
- flanging bore
- processing method
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/022—Making the fins
Abstract
The present invention provides processing method, heat exchange fin and the finned heat exchanger of a kind of heat exchange fin, press machine is provided, press machine includes formed punch, formed punch is equipped with drafting angle, sheet metal is provided, sheet metal is fixed on press machine, and sheet metal is equipped with location hole, and processing method is the following steps are included: punching press flange step: formed punch, which carries out punching press to location hole on sheet metal, to be made to position hole flanging formation flanging bore；Two times punch step: formed punch carries out punching press to flanging bore on side of the flanging bore far from sheet metal again；By punching press twice, so that the inner surface of flanging bore is smooth, impulse- free robustness, and keep straight, under the vibration of compressor, be also able to maintain good cooperation between heat exchanger tube and flanging bore, heat exchanger tube do not allow it is easily rupturable, make heat exchange fin using relatively reliable.
Description
Technical field
The present invention relates to heat exchange fin technical field more particularly to a kind of processing method of heat exchange fin, heat exchange fin and
Finned heat exchanger.
Background technique
Finned heat exchanger is closely joined together as the important component of air-conditioning with compressor, therefore compressor runs meeting
It generates and vibrates and be transmitted on heat exchanger component.Heat exchange fin in finned heat exchanger used at present passes through a presser
Skill goes out flanging bore, and to allow the formed punch on press machine smoothly to exit flanging bore after the completion of punching press, formed punch can all be arranged one
A drafting angle, therefore flanging bore is not cylindrical, there are certain angles, in the use process of finned heat exchanger
In, heat exchanger tube and flanging bore form point contact, and the vibration that compressor operation generates is transmitted to after heat exchanger tube, and heat exchanger tube is easy to
Because the point contact with flanging bore causes to rupture, scrapped so as to cause the entirety of finned heat exchanger.
Summary of the invention
The purpose of the present invention is to provide a kind of processing method of heat exchange fin, heat exchange fin and finned heat exchanger, solutions
Certainly heat exchanger tube is easy to because causing to rupture with flanging bore point contact, and then the problem of cause finned heat exchanger integrally to be scrapped.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of processing method of heat exchange fin, provides punching
Press, press machine include formed punch, and formed punch is equipped with drafting angle, provides sheet metal, sheet metal is fixed on press machine, sheet metal
Be equipped with location hole, wherein processing method the following steps are included:
Punching press flange step: formed punch, which carries out punching press to location hole on sheet metal, to be made to position hole flanging formation flanging bore；
Two times punch step: formed punch carries out punching press to the flanging bore on side of the flanging bore far from sheet metal again.
Further, the length of the flanging bore is less than the length of formed punch.
Further, the length of the flange of the flanging bore is L, 2mm≤L≤5mm.
Further, the drafting angle is A, 0 ° of A≤2 ° <.
Further, the formed punch is equipped with rounded corner far from one end of sheet metal.
Further, the formed punch includes the first formed punch and the second formed punch, the first formed punch and the second formed punch be oppositely arranged and
It is located at the two sides of sheet metal.
Further, the location hole is equipped with multiple, the quantity of the first formed punch and the second formed punch it is equal in number in positioning
The position of the quantity in hole, the position of the first formed punch and the second formed punch is corresponded with the position of location hole respectively.
Further, beveler is also provided, there are also chamfering steps later for the two times punch step: beveler is in flanging bore
Side far from sheet metal carries out chamfering to the inner hole of the flanging bore.
A kind of heat exchange fin is also disclosed in the present invention, and the heat exchange fin is by any heat exchange as described in the above technical scheme
The processing method of fin is process.
A kind of finned heat exchanger is also disclosed in the present invention, the heat exchanger tube including heat exchange fin and on heat exchange fin,
The heat exchange fin is process by the processing method of any heat exchange fin as described in the above technical scheme.
After adopting the above technical scheme, the present invention has the advantage that
1, punching press is carried out to the location hole on sheet metal by being equipped with the formed punch of drafting angle, so that positioning hole flanging is formed
Flanging bore, at this time because formed punch is equipped with drafting angle, the inner wall of flanging bore and the outer wall of formed punch match so that flanging bore inner wall
There is also certain angle, formed punch can more easily be taken out from flanging bore, and will not destroy the inner surface of flanging bore, make to turn over
Lateral opening smooth interior surfaces, impulse- free robustness；By the way that two times punch step is arranged, formed punch is right on side of the flanging bore far from sheet metal
Flanging bore carries out punching press again, so that the lesser part of flange bore dia (i.e. part of the flanging bore far from sheet metal) is by secondary
Punching press enlarged diameter, so that the hole inner wall of flanging bore be made to keep straight, the verticality between flanging bore and sheet metal end face is preferable,
When so that flanging bore and heat exchanger tube cooperating, face contact between heat exchanger tube and the inner wall of flanging bore, and because formed punch is equipped with drafting angle,
It is easier to take out from flanging bore, so that the inner surface of flanging bore is smooth, impulse- free robustness.Under the vibration of compressor, heat exchanger tube
Also be able to maintain good cooperation between flanging bore, heat exchanger tube do not allow it is easily rupturable, make heat exchange fin using relatively reliable.
2, the length for being less than formed punch by the way that the length of flanging bore is arranged guarantees that formed punch can run through flanging bore in punching press,
So that the inner surface of flanging bore is smoother, the burr in flanging bore is avoided to damage heat exchanger tube.
3, through the length of setting flange hole flanging in the range of 2mm to 5mm, so that the moderate length of flanging bore, it can
To cooperate well with heat exchanger tube, exchange heat pipe plays the role of positioning, while will not flange is too long that flange is caused to crack.When
When the length of flange is less than 2mm, the length of flange falls short of, cannot be well with heat exchanger tube face contact, and heat exchanger tube is easy to be shaken；
When the length of flange is greater than 5mm, the length of flange is too long, and the diameter in punching press turn-up process because of flange is excessive to be easy to cause
Flange cracking, and then influence the fixation of heat exchanger tube.
4, by being arranged drafting angle in the range of 0 ° to 2 °, allow formed punch more easily from flanging bore
It takes out, and angle is smaller, so that the gradient of flanging bore inner hole is smaller, reduces the influence to flanging bore inner hole.When A≤0 °, punching
Head takes out more difficulty from flanging bore, and is easily destroyed the inner wall of flanging bore, is unfavorable for the installation of heat exchanger tube；When 2 ° of A >,
Drafting angle is excessive, and the inner wall of flanging bore can be made to have a biggish oblique angle, the contact area of flanging bore inner wall and heat exchanger tube compared with
It is few, it is unfavorable for the positioning of heat exchanger tube.
5, by setting rounded corner, the one end of formed punch far from sheet metal cooperates in punching press with sheet metal, so that flanging bore
End punching press with formed punch cooperation obtains the fillet cooperated with rounded corner, so that the inner wall of flanging bore and the end face of sheet metal are round and smooth
Transition, it is not easy to exchange heat pipe and damage, so that the installation of heat exchanger tube and use are safer.
6, it is oppositely arranged by the first formed punch of setting and the second formed punch, the first formed punch and the second formed punch and is located at metal
The two sides of piece, so that formed punch processes location hole using the first formed punch, in two times punch step in punching press flange step
In, formed punch processes flanging bore using the second formed punch, and sheet metal can be carried out punching press twice without overturning, so that heat exchange
The processing of fin is more convenient, promotes the processing efficiency of heat exchange fin.
7, the quantity of location hole, and first formed punch are equal to by quantity and the quantity of the second formed punch that the first formed punch is arranged
The position of the position and location hole of position and the second formed punch corresponds, and allows multiple first formed punches simultaneously to multiple positioning
Hole carries out being stamped and formed out multiple flanging bores, and then multiple second formed punches can carry out punching press to multiple flanging bores simultaneously, and promotion is changed
The processing efficiency of hot fin.
8, by the way that chamfering step is arranged after two times punch step, in side of the flanging bore far from sheet metal to flanging bore
Inner hole carry out chamfering, avoid the taper generated after two times punch and caused burr, be further ensured that flanging bore will not
The use of exchange heat pipe impacts, and promotes the reliability that heat exchange fin uses.
9, the invention also discloses a kind of heat exchange fin, heat exchange fin by the processing method processing in above-mentioned technical proposal and
The smooth, impulse- free robustness at, flange internal surface of hole on heat exchange fin, and keep straight, under the vibration of compressor, heat exchanger tube with turn over
Also be able to maintain good cooperation between lateral opening, heat exchanger tube do not allow it is easily rupturable, make heat exchange fin using relatively reliable.
10, the invention also discloses a kind of finned heat exchangers, the heat exchange including heat exchange fin and on heat exchange fin
Pipe, heat exchange fin is process by the processing method in above-mentioned technical proposal, make the flange internal surface of hole on heat exchange fin it is smooth,
Straight impulse- free robustness, it is larger with the contact area of heat exchanger tube so that cooperation between heat exchange fin and heat exchanger tube it is more stable, can
Lean on, so make finned heat exchanger using reliable.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is that position when sheet metal and formed punch are in original state in processing method described in the embodiment of the present invention one is illustrated
Figure.
Fig. 2 is in position when punching press flange step for sheet metal in processing method described in the embodiment of the present invention one with formed punch
Schematic diagram.
Fig. 3 is structural representation of the sheet metal after punching press flange step in processing method described in the embodiment of the present invention one
Figure.
Fig. 4 is in position when two times punch step for sheet metal in processing method described in the embodiment of the present invention one with formed punch
Schematic diagram.
Fig. 5 is the enlarged drawing of A in Fig. 4.
Fig. 6 is structural representation of the sheet metal after two times punch step in processing method described in the embodiment of the present invention one
Figure.
Fig. 7 is structural schematic diagram of the sheet metal after chamfering step in processing method described in the embodiment of the present invention two.
Marked the names of the parts are as follows in figure:
1, sheet metal；2, location hole；3, flanging bore；31, flange；4, the first formed punch；5, the second formed punch；6, chamfering；7, it falls
Fillet.
Specific embodiment
Embodiment one:
As shown in Figures 1 to 6, the present invention provides a kind of processing method of heat exchange fin, provides press machine, and press machine includes punching
Head, formed punch are equipped with drafting angle, provide sheet metal 1, and sheet metal 1 is fixed on press machine, and sheet metal 1 is equipped with location hole 2,
Processing method the following steps are included:
Punching press flange step: formed punch, which carries out punching press to location hole 2 on sheet metal 1, makes 2 flange of location hole form flanging bore
3；Because formed punch is equipped with drafting angle, the inner wall of flanging bore and the outer wall of formed punch match so that the inner wall of flanging bore there is also certain
Angle, formed punch can more easily take out from flanging bore, and will not destroy the inner surface of flanging bore, make the interior table of flanging bore
Face is smooth, impulse- free robustness；
Two times punch step: formed punch carries out punching press to flanging bore 3 on side of the flanging bore 3 far from sheet metal 1 again, makes
The lesser part of flange bore dia (i.e. part of the flanging bore far from sheet metal) is obtained by two times punch enlarged diameter, to make to turn over
Lateral opening hole inner wall keeps straight, and the verticality between flanging bore and sheet metal end face is preferable, so that flanging bore is matched with heat exchanger tube
When conjunction, face contact between heat exchanger tube and the inner wall of flanging bore.By punching press twice, so that the inner surface of flanging bore is smooth, hairless
Thorn, and keep straight, under the vibration of compressor, good cooperation is also able to maintain between heat exchanger tube and flanging bore, heat exchanger tube is not
Be easily broken, make heat exchange fin using relatively reliable.
In the present embodiment, formed punch includes the first formed punch 4 and the second formed punch 5, and the first formed punch 4 and the second formed punch 5 are oppositely arranged
And the two sides of sheet metal 1 are located at, so that formed punch processes location hole using the first formed punch in punching press flange step,
In two times punch step, formed punch processes flanging bore using the second formed punch, and sheet metal can be carried out two without overturning
Secondary punching press promotes the processing efficiency of heat exchange fin so that the processing of heat exchange fin is more convenient.
Location hole 2 is equipped with multiple, the quantity equal in number in location hole 2 of the quantity of the first formed punch 4 and the second formed punch 5,
The position of first formed punch 4 and the position of the second formed punch 5 are corresponded with the position of location hole 2 respectively, so that multiple first formed punches
Simultaneously multiple location holes can be carried out to be stamped and formed out multiple flanging bores, then multiple second formed punches can be simultaneously to multiple flange
Hole carries out punching press, promotes the processing efficiency of heat exchange fin.
The length of flanging bore 3 is less than the length of formed punch 4, guarantees that formed punch can run through flanging bore in punching press, so that flange
The inner surface in hole is smoother, and the burr in flanging bore is avoided to damage heat exchanger tube.
The length of the flange 31 of flanging bore 3 be L, 2mm≤L≤5mm, by be arranged flange hole flanging length 2mm extremely
In the range of 5mm, so that the moderate length of flanging bore, can cooperate with heat exchanger tube well, exchange heat pipe plays the work of positioning
With, while will not flange is too long that flange is caused to crack.In the present embodiment, L takes 3mm, has both met the length with heat exchanger tube cooperation,
Will not flange be split.
Drafting angle is A, 0 ° of A≤2 ° <, by being arranged drafting angle in the range of 0 ° to 1 °, so that formed punch can be with
It more easily takes out from flanging bore, and angle is smaller, so that the gradient of flanging bore inner hole is smaller, reduces to flanging bore inner hole
Influence.In the present embodiment, A takes 1 °, not only formed punch can be made easily to take out from flanging bore, but also will not make in flanging bore
The gradient on surface is excessive.
Formed punch is equipped with rounded corner 7 far from one end of sheet metal 1, by the way that rounded corner, the one end of formed punch far from sheet metal is arranged
Cooperate in punching press with sheet metal, so that the end punching press of flanging bore and formed punch cooperation obtains the fillet cooperated with rounded corner, makes
Obtain the inner wall of flanging bore and the end face rounding off of sheet metal, it is not easy to exchange heat pipe and damage, so that the installation of heat exchanger tube
It is safer with using.
It should be understood that being also possible in punching press flange step process location hole using the second formed punch, secondary punching
Flanging bore is processed using the first formed punch in pressure step.
It should be understood that punching press flange step can also be completed using the same formed punch by way of overturning sheet metal
With two times punch step.
It should be understood that L can also take 2mm, 2.5mm, 3.5mm, 4mm, 4.5mm, 5mm etc..
It should be understood that A can also take 0.5 °, 1.5 °, 2 ° etc..
Embodiment two:
As shown in fig. 7, the present embodiment and the main distinction of embodiment one are, beveler, two times punch step are also provided
There are also chamfering steps later: beveler carries out chamfering in inner hole of side of the flanging bore 3 far from sheet metal 1 to flanging bore 3, obtains
Chamfering 6.The advantages of this arrangement are as follows can be to avoid the taper and caused burr generated after two times punch, further
The use that guarantee flanging bore will not exchange heat pipe impacts, and promotes the reliability that heat exchange fin uses.
A kind of heat exchange fin is also disclosed in the present invention, and heat exchange fin is processed by the processing method in any above-mentioned technical proposal
Form, the flange internal surface of hole on heat exchange fin is smooth, impulse- free robustness, and keeps straight, under the vibration of compressor, heat exchanger tube with
Also be able to maintain good cooperation between flanging bore, heat exchanger tube do not allow it is easily rupturable, make heat exchange fin using relatively reliable.
A kind of finned heat exchanger is also disclosed in the present invention, the heat exchanger tube including heat exchange fin and on heat exchange fin,
Heat exchange fin is process by the processing method in any above-mentioned technical proposal, makes the flange internal surface of hole light on heat exchange fin
Sliding, straight impulse- free robustness, it is larger with the contact area of heat exchanger tube so that cooperation between heat exchange fin and heat exchanger tube it is more stable,
Reliably, so make finned heat exchanger using reliable.
In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this
Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong to appended claims of the present invention and determines
The range of justice.
Claims (10)
1. a kind of processing method of heat exchange fin provides press machine, press machine includes formed punch, and formed punch is equipped with drafting angle, mentions
For sheet metal, sheet metal is fixed on press machine, and sheet metal is equipped with location hole, which is characterized in that the processing method includes
Following steps:
Punching press flange step: formed punch, which carries out punching press to location hole on sheet metal, to be made to position hole flanging formation flanging bore；
Two times punch step: formed punch carries out punching press to the flanging bore on side of the flanging bore far from sheet metal again.
2. processing method according to claim 1, which is characterized in that the length of the flanging bore is less than the length of formed punch.
3. processing method according to claim 1, which is characterized in that the length of the flange of the flanging bore is L, 2mm≤L
≤5mm。
4. processing method according to claim 1, which is characterized in that the drafting angle is A, 0 ° of A≤2 ° <.
5. processing method according to claim 1, which is characterized in that the formed punch is equipped with rounding far from one end of sheet metal
Angle.
6. processing method according to claim 1, which is characterized in that the formed punch includes the first formed punch and the second formed punch,
First formed punch and the second formed punch are oppositely arranged and are located at the two sides of sheet metal.
7. processing method according to claim 6, which is characterized in that the location hole is equipped with multiple, the number of the first formed punch
The quantity equal in number in location hole of amount and the second formed punch, the position of the position of the first formed punch and the second formed punch respectively with positioning
The position in hole corresponds.
8. according to claim 1 to processing method described in 7 any one, which is characterized in that also offer beveler, it is described secondary
There are also chamfering steps after punch steps: beveler is carried out in inner hole of side of the flanging bore far from sheet metal to the flanging bore
Chamfering.
9. a kind of heat exchange fin, which is characterized in that heat exchange fin heat exchange wing as described in claim 1 to 8 any one
The processing method of piece is process.
10. a kind of finned heat exchanger, the heat exchanger tube including heat exchange fin and on heat exchange fin, which is characterized in that described
The processing method of heat exchange fin heat exchange fin as described in claim 1 to 8 any one is process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297055.1A CN110340245A (en) | 2018-04-04 | 2018-04-04 | A kind of processing method of heat exchange fin, heat exchange fin and finned heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297055.1A CN110340245A (en) | 2018-04-04 | 2018-04-04 | A kind of processing method of heat exchange fin, heat exchange fin and finned heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340245A true CN110340245A (en) | 2019-10-18 |
Family
ID=68173794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297055.1A Pending CN110340245A (en) | 2018-04-04 | 2018-04-04 | A kind of processing method of heat exchange fin, heat exchange fin and finned heat exchanger |
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| CN (1) | CN110340245A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112719061A (en) * | 2020-12-03 | 2021-04-30 | 重庆伟汉汽车部件有限公司 | Forming process of small hole with chamfered surface in inward-flanged orifice on shell of electric control booster |
| CN114472710A (en) * | 2021-12-27 | 2022-05-13 | 中国航发长春控制科技有限公司 | Stamping tool and copper alloy sharp edge sealing processing method |
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| CN112719061A (en) * | 2020-12-03 | 2021-04-30 | 重庆伟汉汽车部件有限公司 | Forming process of small hole with chamfered surface in inward-flanged orifice on shell of electric control booster |
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| CN114472710A (en) * | 2021-12-27 | 2022-05-13 | 中国航发长春控制科技有限公司 | Stamping tool and copper alloy sharp edge sealing processing method |
| CN114472710B (en) * | 2021-12-27 | 2023-09-26 | 中国航发长春控制科技有限公司 | Stamping tool and copper alloy sharp edge sealing processing method |
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Application publication date: 20191018 |