CN100339167C - Method for manufacturing cooling fin of heat exchanger and its die apparatus - Google Patents
Method for manufacturing cooling fin of heat exchanger and its die apparatus Download PDFInfo
- Publication number
- CN100339167C CN100339167C CNB2004100619018A CN200410061901A CN100339167C CN 100339167 C CN100339167 C CN 100339167C CN B2004100619018 A CNB2004100619018 A CN B2004100619018A CN 200410061901 A CN200410061901 A CN 200410061901A CN 100339167 C CN100339167 C CN 100339167C
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- Prior art keywords
- protuberance
- recess
- drift
- sheet metal
- patrix
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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
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/12—Edge-curling
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/04—Stamping using rigid devices or tools for dimpling
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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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
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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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/04—Blank holders; Mounting means therefor
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
Abstract
A molding device for manufacturing a fan for a heat exchanger is provided to form a flat tub-shaped convex portion, thereby minimizing the size of molding device of the fan for the heat exchanger, helping save energey and reducing the cost for manufacturing the fan for the heat exchanger. A tub-shaped convex portion(20) is protruded towards one surface of a metal thin plate(12). The tub-shaped convex portion is pierced and burred. A collar portion is formed to insert a heat exchanging tube. A opening portion, which has an opened area bigger than an opened area of the tub-shaped convex portion, is formed on one side surface of the metal thin plate. A concave portion(16) is formed such that a protruding portion is protruded towards the other surface side of the metal thin plate. A protruding punch(18) has a opening diameter smaller than an opening diameter of the concave portion.
Description
Technical field
The present invention relates to the manufacture method and the die device thereof of radiator fin for heat exchanger, in more detail, the present invention relates to the tubular protuberance of the specified altitude assignment protruded towards the one side side of sheet metal is carried out punching, plunging, form cannula portion, thereby make the radiator fin for heat exchanger manufacture method and the die device thereof of radiator fin for heat exchanger for interspersed heat-exchange tube.
Background technology
The heat exchanger that family and automobile refrigerating machine etc. use, general all on heat-exchange tube stacked many radiator fin for heat exchanger make.About this radiator fin for heat exchanger, for example record to some extent in Japanese patent laid-open 9-271874 communique.
The radiator fin for heat exchanger of this communique record as shown in Figure 7.Radiator fin for heat exchanger A shown in Figure 7 is the one side side at rectangle sheet metal 11, has vertically offered the many cannula portion 10,10 for interspersed heat-exchange tube ... parts.
This radiator fin for heat exchanger A is to use the punch process moulding usually.Its outward appearance is shown in Fig. 8 A and Fig. 8 B.Fig. 8 A and Fig. 8 B represent sheet metals such as soft aluminium 12 are supplied with metal pattern by the arrow B direction, and to the schematic diagram that cannula portion 10 is carried out deep-draw machine-shaping, its plane is shown in Fig. 8 A, and vertical longitudinal section is shown in Fig. 8 B.
If sheet metal 12 is supplied with mould in turn by the arrow B direction, then at first form convex shaped part 1, then, convex shaped part 1 is carried out first step deep-draw processing, form the convex shaped part 2 of tube reducing, again convex shaped part 2 is carried out the deep-draw processing of second step, form the convex shaped part 3 of tube reducing.To above-mentioned convex shaped part 3,, carry out deep-draw processing once more with than the first step and littler reducing rate of second step, form convex shaped part 4, meanwhile, the lower surface of patrix is crimped onto on 12 of the sheet metals that are stated from the counterdie upper surface, flattens or forming processes such as indent.
Secondly, tubular protuberance 4 is carried out punching, flange, carry out ironing (ironing) processing more as required, form after the cylindrical portion 5,, thereby form cannula portion 10 in the leading section formation turn-up portion (blade of a sword portion) of cylindrical portion 5.
Then, cut off the sheet metal 12 that has formed many cannula portion 10, make the fin A that the rectangular heat interchanger is used in appointment place.
Summary of the invention
Shown in Fig. 8 A and Fig. 8 B, by carrying out multistep deep-draw processing, form the tubular protuberance of specified altitude assignment, adopt the thin sheet metal 12 of wall, also can form the tubular protuberance of specified altitude assignment.
But, process the multistep deep-draw that sheet metal 12 carries out shown in Fig. 8 A and Fig. 8 B, its die device maximizes.For this reason, the decompressor that drives the large mold device also maximizes, and should guarantee has enough areas that is provided with in the factory, also needs the high power power source of the motor that drives large-scale decompressor etc.
Therefore, the general manufacturing process that requires to shorten radiator fin for heat exchanger, and with the die device miniaturization.
In addition, in the process of the processing of multistep deep-draw shown in Fig. 8 A and Fig. 8 B, on big convex shaped part 2,3 sheet metal 12 nearby of reducing rate, the g of ridging portion shown in the ring-type variant part f shown in Fig. 9 A and Fig. 9 B often appears.The often processed sclerosis of part of this variant part f, g occurs, can't successfully carry out following process, the cannula portion 10 that finally obtains, not only highly low, and also outward appearance is ugly.
Particularly, for adapting to the requirement of sheet metal 12 thin-walled properties, once tested thin-wall metal thin plate 12 was carried out deep-draw processing, form cannula portion 10, the result learns, carrying out on the convex shaped part sheet metal 12 nearby of deep-draw processing, than easier variant part f, the g of occurring in the past.
Therefore, it is a kind of with more in the past than the operation that shortened that problem of the present invention just is to provide, and can form the manufacture method and the die device thereof of the radiator fin for heat exchanger of level and smooth tubular protuberance.
The present inventor is required to solving above-mentioned problem, the operation shorteningization that forms specified altitude assignment tubular protuberance in sheet metal one side side is inquired into, found that, one side side at sheet metal, offer the peristome of a bore bigger than the tubular protuberance that forms, and the formation protuberance is towards the recess of the another side side protrusion of sheet metal, then, by the outstanding drift that utilizes external diameter to equate with the internal diameter of the tubular protuberance that finally will form, with the protuberance of this recess outer peripheral face side from the protuberance front end of recess, one side towards sheet metal is side-prominent, protuberance just can be in the one side side of sheet metal, obtain the wrinkle shape and the ring-type variant part is few, level and smooth, the tubular protuberance of specified altitude assignment is so that obtain the present invention.
That is to say, the invention provides a kind of manufacture method of radiator fin for heat exchanger, it is characterized in that, tubular protuberance towards the side-prominent specified altitude assignment of the one side of sheet metal is carried out punching and flange, and the cannula portion of the interspersed heat-exchange tube of formation, thereby make radiator fin for heat exchanger wherein, before forming described tubular protuberance, offer peristome in the one side side of described sheet metal in advance than the opening of described tubular protuberance footpath larger diameter, and the formation protuberance is towards the recess of the another side side protrusion of described sheet metal, then, by than the opening of the described protuberance footpath outstanding drift of minor diameter more, make described protuberance protrude and form described tubular protuberance to side direction of sheet metal, at this moment, the flaccid part that forms for the part that can make described protuberance is not followed the protrusion of described outstanding drift with being damaged by pressure and is eliminated, and described protuberance is protruded.
In addition, the present invention also provides a kind of die device of radiator fin for heat exchanger, this die device carries out punching and flange to the tubular protuberance towards the side-prominent specified altitude assignment of one side of the sheet metal sent into towards deciding direction, form the cannula portion of interspersed heat-exchange tube, it is characterized in that, in constituting the patrix of this die device, be provided with: offer peristome than the opening footpath larger diameter of described tubular protuberance in the one side side of described sheet metal in the direction of sending into of described sheet metal, and the formation protuberance is towards the recess drift of the recess of the another side side protrusion of described sheet metal; And internal diameter is littler than the peristome of described recess, the punch die that is used to form described tubular protuberance, with the counterdie of described patrix butt or disengaging in, be provided with: the patchhole that inserts with the leading section of drift for described recess; On the position relative, be contained in the punch die of being located at described patrix the recess that forms on the described sheet metal protuberance hold recess; From the inboard that outer peripheral face one side is side-prominent towards the one side of described sheet metal, leading section is inserted in described punch die that is contained in the described front end that holds the protuberance in the recess to form the outstanding drift of described tubular protuberance, described outstanding drift is arranged in the through hole that is opened on the bottom surface that holds recess relative with described punch die, with at described protuberance when side direction of sheet metal protrudes, thereby the flaccid part that the part of described protuberance is formed is contained in and holds the protrusion of not following described outstanding drift in the recess with being damaged by pressure and disappear.
In the present invention, outer peripheral face one side of the leading section of outstanding drift from the protuberance front end of recess, in the time of towards side direction punching press of sheet metal, by the protuberance that holds described recess, leading section from the described drift more outstanding than the bottom surface that holds recess of the internal diameter larger diameter of described tubular protuberance, be inserted into than the punch die inboard of minor diameter more, the described opening footpath that holds recess, protuberance with recess, when pressing towards a side blow of sheet metal with outstanding drift, the flaccid part that forms in the part of protuberance, can be crowded bad by upper die and lower die, be easy to form the tubular protuberance.
In addition, in the patrix that constitutes die device, be provided with patrix blanket compactor, it by force application part towards the counterdie direction application of force, form the through hole that interts with the drift leading section for recess, in described counterdie, be provided with the 1st counterdie lifter plate and the 2nd counterdie lifter plate, the 1st counterdie lifter plate, it with the relative position of described patrix blanket compactor, be configured to by than the littler force application part of the application of force of the force application part of described patrix blanket compactor towards the patrix direction application of force, form the patchhole that inserts with the drift leading section for recess, the 2nd counterdie lifter plate is on the counterdie position corresponding with the punch die of being located at described patrix, towards the described patrix direction application of force, it is formed with by force application part: hold the recess that on sheet metal, forms with drift with the recess of described patrix protuberance hold recess; The described bottom surface opening that holds recess, from outer peripheral face one side of the front end of the protuberance that is contained in the described described recess that holds recess, outstanding towards a side direction of described sheet metal, form the through hole that the leading section for the outstanding drift that inserts in described patrix punch die inboard interts, by above setting, be easy to extract the recess drift from established recess, and extract outstanding drift, and make sending into also to become and being easy to of sheet metal from established tubular protuberance.
In addition, by form the protuberance of recess at dome-shaped protuberance, can be easy on sheet metal, form recess.Recess drift as forming this recess can adopt front end face to make dome-type recess drift.
Internal diameter by the tubular protuberance that uses external diameter to equal finally will to form, and front end face is made the outstanding drift of tabular surface as outstanding drift, form the bottom surface of described tubular protuberance at tabular surface, the recess that can form from sheet metal, directly the formation tubular protuberance that finally will form.
According to the present invention, the recess that can form from sheet metal, directly the formation final tubular protuberance that finally will form perhaps forms the tubular protuberance that approaches final tubular protuberance.Therefore can omit or reduce multistep deep-draw processing in the past, realize the miniaturization of die device.
In addition, the leading section of outstanding drift, outer peripheral face one side from the protuberance front end of recess, a side direction punching press to sheet metal, when forming the tubular protuberance, under the situation of the flaccid part of the part of the protuberance of recess formation, form the tubular protuberance because can not squeeze evil idea, so can form wrinkle shape and the few level and smooth tubular protuberance of ring-type variant part.
Description of drawings
Fig. 1 is the key diagram of one of the radiator fin for heat exchanger manufacture method that the present invention relates to of explanation example, Fig. 2 is the partial sectional view of one of the radiator fin for heat exchanger mfg. moulding die that the present invention relates to of explanation routine usefulness, Fig. 3 is the partial sectional view that explanation patrix 30 shown in Figure 1 and counterdie 50 matched moulds states are used, Fig. 4 A-Fig. 4 D is the punch process state is carried out in explanation to sheet metal 12 with the mfg. moulding die of a radiator fin for heat exchanger shown in Figure 2 key diagram, Fig. 5 A-Fig. 5 F is the recess 16 that explanation forms the another side side of sheet metal 12, key diagram towards the side-prominent state of the one side of sheet metal 12, Fig. 6 is the key diagram of another routine usefulness of the manufacture method of the radiator fin for heat exchanger that the present invention relates to of explanation, Fig. 7 is the stereogram of explanation radiator fin for heat exchanger, Fig. 8 A and Fig. 8 B illustrate the key diagram of radiator fin for heat exchanger manufacture method in the past, and Fig. 9 A and Fig. 9 B are the stereograms of the distortion situation of the tubular protuberance that makes with radiator fin for heat exchanger manufacture method in the past of explanation etc.
The specific embodiment
Below by Fig. 1 an example of the radiator fin for heat exchanger manufacture method that the present invention relates to is described.Fig. 1 represents sheet metals such as soft aluminium 12 are supplied in the diel by the arrow directions X, forms the longitudinal section of the process of cannula portion 10.
If sheet metal 12 is pressed the arrow directions X, supply in the mould in turn, at first, make dome-type recess drift 14 by front end face, offer a peristome in the one side side of sheet metal 12, and, form a recess 16 that has protuberance 16a to protrude in the another side side of sheet metal 12.This protuberance 16a is to copy the dome-shaped protuberance of recess with drift 14 front end face shapes.
Secondly, the leading section of outstanding drift 18 that will be littler than the opening footpath of recess 16, side-prominent from front end outer peripheral face one side of the protuberance 16a of recess 16 to the one side of sheet metal, form tubular protuberance 20 in the one side side of sheet metal 12.The internal diameter of this tubular protuberance 20 equals the external diameter of outstanding drift 18.Therefore, by the outstanding drift 18 of tubular protuberance 20 internal diameters that use external diameter to equal finally will to form, the tubular protuberance 20 of the specified altitude assignment that can finally will form from recess 16, one step formation.
The tubular protuberance 20 that forms is carrying out punching, flange to its bottom surface, and is further carrying out ironing as required, forms after the cylindrical portion 22, in the leading section formation turn-up portion of cylindrical portion 22, thereby forms cannula portion 10.
Among operation shown in Figure 1, on sheet metal 12, form the operation of recess 16 and from front end outer peripheral face one side of recess 16 protuberance 16a, a side direction towards sheet metal 12 is outstanding, forms the operation of tubular protuberance 20, can be undertaken by die device shown in Figure 2.
In die device shown in Figure 2, patrix 30 carries out punch process with respect to counterdie 50 liftings to the sheet metal 12 of mounting between patrix 30 and counterdie 50.
This patrix 30 is made of last mould body 34, patrix blanket compactor 35 and die plate 41, and wherein, last mould body 34 is made up of upper punch module (die set) 32 and upper punch fixture head 33.This patrix blanket compactor 35 and die plate 41 are arranged on the direction of sending into of sheet metal 12.
Patrix blanket compactor 35, the bolt 37 by the stripper bolt 36 of being located at mould body 34 supports is assemblied on the mould body 34.This stripper bolt 36, the active force that applied to counterdie 50 directions by the spring 38 as force application part between last mould body 34 and patrix blanket compactor 35, forms predetermined distance.
The through hole 39 that forms on patrix blanket compactor 35, interspersed rearward end are contained in the leading section of the recess usefulness drift 14 on the mould body 34.This recess is with the protrusion length of drift 14 from last mould body 34, by be located on the mould body 34, adjust as the height arm control 40 of force application part.
With the die plate 41 that patrix blanket compactor 35 is set up in parallel, be fixed on the mould body 34, form punch die 42.
In this die plate 41, be equipped with by the pin that opens circuit (killerpin) 44 of the direction application of force of 43 pairs of counterdies 50 of spring.
Behind patrix blanket compactor 35 pressurizeds, when its inner face and last mould body 34 butts, the surface of patrix blanket compactor 35 and the surface of die plate 41 are adjusted at grade.
In counterdie 50, constituted by following mould body the 54, the 1st counterdie lifter plate 55 and the 2nd counterdie lifter plate 56, wherein, following mould body 54 is made up of bottom punch module (die set) 52 and bottom punch fixture head 53.The 1st counterdie lifter plate 55 and the 2nd counterdie lifter plate 56 are arranged on the direction of sending into of sheet metal 12.
The 1st counterdie lifter plate 55 is arranged on the position relative with patrix blanket compactor 35, is subjected to being located at down the active force to patrix 30 directions as the spring 57 of force application part of mould body 54.For this reason, and between the following mould body 54, formation rule interval.The application of force of this spring 57 is generally adjusted to than the application of force of the spring 38 of the mould body 54 direction application of forces is little down with patrix blanket compactor 35.
On the 1st counterdie lifter plate 55, offer the patchhole 58 that the interspersed recesses that are loaded in the patrix 30 are used with drift 14 leading sections.
The 2nd counterdie lifter plate 56 is located on die plate 41 correspondence positions with patrix 30, be subjected to being located at down mould body 54 as the spring 59 of force application part active force to patrix 30 directions.For this reason, and following mould body 54 between, form predetermined distance.
In the through hole 60 that on the 2nd counterdie lifter plate 56, forms, the interspersed leading section of being located at down the outstanding drift 18 of mould body 54.Should give prominence to the leading section of drift 18, be inserted in the punch die 42 of patrix 30.Should give prominence to the protrusion length of drift 18, adjust by the height arm control 62 of being located at down mould body 54 as force application part from following mould body 54.
In addition, the 1st counterdie lifter plate 55 and the 2nd counterdie lifter plate 56 are mounting surfaces of mounting sheet metal 12, and both surfaces are general to be adjusted at grade.
The mouth of sending at the sheet metal 12 of upper punch module 32 shown in Figure 2 and bottom punch module 52 is provided with patrix inlet part 46 and counterdie inlet part 63, in patrix inlet part 46, is provided with pin 47.This pin 47, the air pressure that formed in the air chamber 48 by upper punch module 32 protrudes specific length from patrix inlet part 46.
On the other hand, above the counterdie inlet part 63, be the mounting surface of mounting sheet metal 12, be positioned in the top sheet metal 12 of counterdie inlet part 63, compress with felt (felt) 66.These felt 66 usefulness coating members 65 cover.
The state that patrix 30 shown in Figure 2 drops to counterdie 50 matched moulds is shown in Fig. 3.During matched moulds, the pin 47 that is contained in patrix inlet part 46 is held before, and with the top butt of the coating member 65 of being located at counterdie 50, by pin 47, the air pressure in the air chamber 48 is delivered to coating member 65, with given force clamping sheet metal 12.
In addition, when the patrix blanket of patrix 30 compresses 35, during with the 1st counterdie lifter plate 55 butts of counterdie 50, because to the application of force of the spring 38 of patrix blanket compactor 35 application of forces, compare the application of force of the spring 57 of the 1st counterdie lifter plate 55 application of forces and want big, so at first, after mould body 54 is pushed down the 1st counterdie lifter plate 55, then, just by mould body 34 pushings up, recess is inserted in the jack 58 of the 1st counterdie lifter plate 55 with the leading section of drift 14 patrix blanket compactor 35.
This state is shown among Fig. 4 A and Fig. 4 B.Fig. 4 A is the state of patrix blanket compactor 35 from the 1st counterdie lifter plate 55 disengagings of mounting sheet metal 12, Fig. 4 B is that patrix blanket compactor 35 is by last mould body 34 pushings, recess is inserted in the patchhole 58 of the 1st counterdie lifter plate 55 with the leading section of drift 14, in the another side of sheet metal 12, form the recess 16 that protuberance 16a protrudes.
Die plate 41 with the 35 adjacent settings of patrix blanket compactor, descend by patrix 30, the front end of pin 44 of opening circuit is connected to the 2nd counterdie lifter plate 56,56 downward mould body 54 pushings of the 2nd counterdie lifter plate, the leading section that is contained in the outstanding drift 18 in the counterdie 50 is inserted in the pressing mold 42 of die plate 41 with given force.
This state is shown among Fig. 4 C and Fig. 4 D.Shown in Fig. 4 A, in the 2nd counterdie lifter plate 56, form hold sheet metal 12 forms among Fig. 4 A and Fig. 4 B recess 16 hold recess 64.The bottom surface that holds recess 64 offers the through hole 60 that outstanding drift 18 interts.In the 2nd counterdie lifter plate 56 that holds recess 64, shown in Fig. 4 C, approaching at the recess 16 that holds formation on this sheet metal 12 with the die plate 41 of patrix 30.Secondly, the 2nd counterdie lifter plate 56 is pushed into down mould body 52, shown in Fig. 4 D, passes by the leading section of giving prominence to drift 18 and to hold recess 64, is inserted in the punch die 42 of die plate 41, can form the tubular protuberance 20 of specified altitude assignment.
In addition, shown in Fig. 4 C and Fig. 4 D, front end face forms the outstanding drift of tabular surface, is well suited for to make outstanding drift 18.
Shown in Fig. 4 D, when the front end face of giving prominence to drift 18 was inserted the punch die 42 of die plate 41, the change procedure of the protuberance 16a of recess 16 was shown in Fig. 5.
At first, recess drift 14, from the leading section outer peripheral face of the protuberance 16a that holds recess 64 that is contained in the 2nd counterdie lifter plate 56 near [Fig. 5 A], the front end face of protuberance 16a, be connected to the front end outer peripheral face of the protuberance 16a of recess 16, with the side direction pushing [Fig. 5 B] of protuberance 16a to sheet metal 12.
In addition, if the front end face of outstanding drift 18 is outstanding to a face direction of sheet metal with protuberance 16a, will be at protuberance 16a crooked flaccid part 68[Fig. 5 C and Fig. 5 D appear midway].
Because the opening footpath that holds recess 64 shown in Fig. 4 C and Fig. 4 D, bigger than the opening footpath of the punch die 42 of die plate 41, so this flaccid part 68 forms in holding recess 64.
Therefore, flaccid part 68 can not damaged by pressure by die plate 41 and the 2nd counterdie lifter plate 56 or be restricted, if so continue with the front end face of giving prominence to drift 18, protuberance 16a is side-prominent towards the one side of sheet metal 12, the outstanding drift that then can be protruded 18 pulls and flaccid part 68 dwindles [Fig. 5 E] gradually, the final disappearance can form the level and smooth tubular protuberance 20 of specified altitude assignment.
According to the manufacture method of radiator fin for heat exchanger shown in Figure 1, compare with the manufacture method of the radiator fin for heat exchanger in the past shown in Fig. 8 B with Fig. 8 A, can reduce process number.
For this reason, make the mfg. moulding die of the radiator fin for heat exchanger of radiator fin for heat exchanger shown in Figure 1, when can reduce manufacturing process, realize miniaturization.
In addition, manufacture method according to above-described radiator fin for heat exchanger, though can be from the recess 16 of sheet metal 12 formation, one step produced the tubular protuberance of the specified altitude assignment that finally will form, but as shown in Figure 6, also can carry out tube reducing, form the tubular protuberance 20 of specified altitude assignment the tubular protuberance 19 of sheet metal 12 formed recesses 16 formation.
According to the present invention, can form level and smooth tubular protuberance, so be expected to realize the die device miniaturization of radiator fin for heat exchanger with more in the past than the operation that shortened more.Its result can make when making radiator fin for heat exchanger, realizes energy-conservationly, and is expected to reduce the manufacturing cost of radiator fin for heat exchanger.
Claims (8)
1, a kind of manufacture method of radiator fin for heat exchanger is characterized in that, thereby the tubular protuberance towards the side-prominent specified altitude assignment of the one side of sheet metal is carried out punching and flange, and forms and intert the cannula portion of heat-exchange tube and make radiator fin for heat exchanger,
Wherein, before forming described tubular protuberance, offer peristome in the one side side of described sheet metal in advance, and form the recess that protuberance protrudes towards the another side side of described sheet metal than the opening footpath larger diameter of described tubular protuberance, then,
By than the opening of the described protuberance footpath outstanding drift of minor diameter more, make described protuberance protrude and form described tubular protuberance to side direction of sheet metal, at this moment, the flaccid part that forms for the part that can make described protuberance is not followed the protrusion of described outstanding drift with being damaged by pressure and is eliminated, and described protuberance is protruded.
2, as the manufacture method of the radiator fin for heat exchanger of claim 1 record, it is characterized in that, to give prominence to the drift leading section, from outer peripheral face one side of the front end of the protuberance that forms recess towards the one side of sheet metal side-prominent the time, will be from holding the leading section of the described outstanding drift that protrudes above-mentioned protuberance and the diameter bottom surface that holds recess bigger than described tubular protuberance internal diameter, be inserted into than the inboard of the punch die of minor diameter more, the described opening footpath that holds recess.
3, as the manufacture method of the radiator fin for heat exchanger of claim 1 record, it is characterized in that the protuberance of recess forms dome-shaped protuberance.
4, as the manufacture method of the radiator fin for heat exchanger of claim 1 record, it is characterized in that, adopt external diameter to equal the internal diameter of the tubular protuberance that finally will form and outstanding drift that front end face forms tabular surface, the bottom surface of described tubular protuberance is formed tabular surface as outstanding drift.
5, a kind of die device of radiator fin for heat exchanger, this die device carries out punching and flange to the tubular protuberance towards the side-prominent specified altitude assignment of one side of the sheet metal sent into towards deciding direction, forms to intert the cannula portion of heat-exchange tube, it is characterized in that,
In constituting the patrix of this die device, be provided with: offer than the peristome of the opening footpath larger diameter of described tubular protuberance and form the recess drift of the recess that protuberance protrudes towards the another side side of described sheet metal in the one side side of described sheet metal in the direction of sending into of described sheet metal; And internal diameter is littler than the peristome of described recess, the punch die that is used to form described tubular protuberance,
With the counterdie of described patrix butt or disengaging in, be provided with: the patchhole that inserts with the leading section of drift for described recess; On the position relative, be contained in the punch die of being located at described patrix the recess that forms on the described sheet metal protuberance hold recess; From the inboard that outer peripheral face one side is side-prominent towards the one side of described sheet metal, leading section is inserted in described punch die that is contained in the described front end that holds the protuberance in the recess forming the outstanding drift of described tubular protuberance,
Described outstanding drift is arranged in the through hole that is opened on the bottom surface that holds recess relative with described punch die, with at described protuberance when side direction of sheet metal protrudes, thereby the flaccid part that the part of described protuberance is formed is contained in and holds the protrusion of not following described outstanding drift in the recess with being damaged by pressure and disappear.
6, as the die device of the radiator fin for heat exchanger of claim 5 record, it is characterized in that: in patrix, be provided with patrix blanket compactor, it towards the counterdie direction application of force, is formed the through hole that interts with the leading section of drift for recess by force application part,
In described counterdie, be provided with the 1st counterdie lifter plate and the 2nd counterdie lifter plate,
The 1st counterdie lifter plate is configured on the position relative with described patrix blanket compactor: by the application of force than the little force application part of the force application part of described patrix blanket compactor towards the patrix direction application of force, and form the patchhole that inserts with the leading section of drift for recess,
The 2nd counterdie lifter plate, and is formed with towards the described patrix direction application of force by force application part on the counterdie position corresponding with the punch die of being located at described patrix: hold the recess that on sheet metal, forms with drift with the recess of described patrix protuberance hold recess; And through hole, this through hole is at the described bottom surface opening that holds recess, outstanding from outer peripheral face one side that is contained in the described described protuberance front end that holds recess towards a side direction of described sheet metal, connect for the leading section of the outstanding drift of the punch die inboard that is inserted in described patrix and to insert.
7, as the die device of the radiator fin for heat exchanger of claim 5 record, it is characterized in that: the recess drift is that front end face forms dome-type recess drift.
8, as the die device of the radiator fin for heat exchanger of claim 5 record, it is characterized in that outstanding drift is that its external diameter equals the internal diameter of final formed tubular protuberance and the outstanding drift that front end face forms tabular surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003177421 | 2003-06-23 | ||
| JP2003177421A JP3777367B2 (en) | 2003-06-23 | 2003-06-23 | Manufacturing method of fin for heat exchanger and mold apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1572388A CN1572388A (en) | 2005-02-02 |
| CN100339167C true CN100339167C (en) | 2007-09-26 |
Family
ID=34099984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100619018A Expired - Fee Related CN100339167C (en) | 2003-06-23 | 2004-06-23 | Method for manufacturing cooling fin of heat exchanger and its die apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3777367B2 (en) |
| KR (1) | KR100725749B1 (en) |
| CN (1) | CN100339167C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077288A (en) * | 2016-06-21 | 2016-11-09 | 四川长虹空调有限公司 | Foil mould and the method manufacturing foil |
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| CN1939613B (en) * | 2005-09-29 | 2010-08-25 | 比亚迪股份有限公司 | Stripped thorn hole turnover method, radiator fin therewith and mould thereof |
| KR100864690B1 (en) | 2007-07-05 | 2008-10-23 | 주식회사 인지디스플레이 | Press die for forming bottom chassis of lcd |
| JP4526573B2 (en) * | 2008-03-19 | 2010-08-18 | 日高精機株式会社 | Tension applying device and heat exchanger fin manufacturing device |
| KR101100350B1 (en) * | 2009-07-16 | 2011-12-30 | 김부용 | pressing device for forming a thin plate |
| JP5636846B2 (en) * | 2010-09-29 | 2014-12-10 | アイシン・エィ・ダブリュ株式会社 | Manufacturing method of disc-shaped member with boss and manufacturing device of disc-shaped member with boss |
| CN104053966A (en) * | 2012-01-18 | 2014-09-17 | 三菱电机株式会社 | Heat Exchanger For Vehicle Air Conditioning Device, And Vehicle Air Conditioning Device |
| CN102814408A (en) * | 2012-09-05 | 2012-12-12 | 成都中弘轨道交通环保产业股份有限公司 | Steel plate surface blind hole punching die |
| DE102014000299B3 (en) * | 2014-01-15 | 2015-07-16 | Rixen Wolfgang | Method for producing passages in a metallic body by means of high-speed shear cutting and its use |
| CN104646488B (en) * | 2015-01-29 | 2017-04-19 | 诸暨市润拓机械自动化科技有限公司 | Integrated automatic punching and flanging machine for valve pipes |
| CN104874669B (en) * | 2015-06-18 | 2017-02-01 | 东莞市文思顿五金塑胶有限公司 | Rotary punching AIO (All-In-One) machine |
| FR3059576B1 (en) * | 2016-12-05 | 2019-06-07 | Peugeot Citroen Automobiles Sa | PRESS TOOLS FOR FORMING A COLLET BY FILLING |
| CN110430720B (en) * | 2019-07-09 | 2020-11-06 | 北京空间飞行器总体设计部 | Gravity heat pipe radiator suitable for outdoor base station |
| CN111250814A (en) * | 2020-03-23 | 2020-06-09 | 嘉兴斯达半导体股份有限公司 | Heat dissipation base plate embossing package device |
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- 2003-06-23 JP JP2003177421A patent/JP3777367B2/en not_active Expired - Fee Related
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- 2004-06-01 KR KR1020040039421A patent/KR100725749B1/en not_active IP Right Cessation
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| CN106077288A (en) * | 2016-06-21 | 2016-11-09 | 四川长虹空调有限公司 | Foil mould and the method manufacturing foil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3777367B2 (en) | 2006-05-24 |
| KR100725749B1 (en) | 2007-06-08 |
| KR20050000311A (en) | 2005-01-03 |
| JP2005007467A (en) | 2005-01-13 |
| CN1572388A (en) | 2005-02-02 |
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