CN116713398A - Processing technology of fin group in radiator - Google Patents
Processing technology of fin group in radiator Download PDFInfo
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- CN116713398A CN116713398A CN202310165166.8A CN202310165166A CN116713398A CN 116713398 A CN116713398 A CN 116713398A CN 202310165166 A CN202310165166 A CN 202310165166A CN 116713398 A CN116713398 A CN 116713398A
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- Prior art keywords
- flanging
- fin
- material belt
- punch
- pressing
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- 238000012545 processing Methods 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 100
- 238000005520 cutting process Methods 0.000 claims abstract description 61
- 239000000758 substrate Substances 0.000 claims abstract description 49
- 238000004080 punching Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 79
- 230000007306 turnover Effects 0.000 claims description 37
- 238000007667 floating Methods 0.000 claims description 22
- 230000000750 progressive effect Effects 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract 1
- 230000000191 radiation effect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
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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
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
A process for manufacturing a fin set in a heat sink, comprising: 1. punching corresponding to the product area of the material belt; 2. feeding the material belt forwards, and positioning and calibrating the material belt through the positioning holes; 3. cutting the outer contour of the fin; 4. the side piece is turned up for the first time, and a buckling part is bent; 5. the side piece is turned for the second time, and the connecting part is bent; 6. the side piece is turned up for the third time, and the side piece is turned up along the width of the side piece, so that the side piece and the substrate form 90 degrees; 7. cutting individual fin areas on the web; 8. pushing the two sliding blocks to slide towards two sides, so that the front fin and the rear fin are buckled, and the processing of the fin group is completed. The invention is formed from the forming of the single fin to the splicing and assembling of the integral fin group at one time, can realize the rapid and accurate fin forming and realize the efficient assembling of the fin group. The processed fin group can improve the heat radiation effect of the radiator under the relatively smaller volume, effectively solve the heat radiation problem of the electronic element and effectively control the overall processing cost of the product.
Description
Technical Field
The invention relates to the technical field of radiators, in particular to a processing technology of a fin group in a radiator.
Background
The rapid development of the electronic industry makes the application range of the electronic equipment wider, and simultaneously the development process of the electronic equipment is also continuously advanced. The operation speed and the operation efficiency of electronic components are continuously improved, so that more efficient working efficiency is pursued. Along with the continuous improvement of the operation speed and the operation efficiency of the electronic components, the heat generated during the operation of the electronic equipment is increased, the internal temperature of the equipment is rapidly increased due to rapid heat accumulation, if the heat is not timely emitted, the equipment can continuously heat, the device can lose efficacy due to overheating, the reliability of the electronic equipment is reduced, and even the whole component can be burnt. The lamp is one of a plurality of electronic devices, and in some special occasions, in order to pursue better experience, the lamp used by people, such as industrial and mining lamps, stage lamps and the like, has larger power, has more compact structure and has higher heat dissipation requirement on a light source.
In the conventional heat dissipation method, a single fin heat sink or a cold forging heat sink is generally used, and the heat dissipation effect of such heat sinks is very limited, so that in order to increase the heat dissipation area, the volume of the heat sink needs to be increased continuously, and the heat dissipation problem of the electronic component cannot be solved properly. In order to solve the problems of the radiator, a buckled metal radiator is designed, and the buckled metal radiator has a very large radiating surface area and good convection radiating effect, and can achieve larger radiating efficiency under smaller radiating volume. However, the structure and the processing technology of the snap-fit radiator are very complex, and the manufacturing cost is very high.
Therefore, how to provide a new fin set processing technology to solve the above-mentioned shortcomings of the prior art is the subject of the present invention.
Disclosure of Invention
The invention aims to provide a processing technology of a fin group in a radiator.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a processing technology of a fin group in a radiator comprises the following steps:
punching a product area corresponding to a material belt to form a positioning hole, a buckling hole and an assembly hole, wherein at least two positioning holes and buckling holes are respectively arranged on the upper side and the lower side of a substrate of the fin; the assembly hole is positioned at the outer side of one buckling hole;
step two, moving the material belt forwards by two stations through a feeding guide assembly, and positioning and calibrating the material belt through a positioning hole;
cutting the outer contour of the right side of the fin in the product area of the material belt, and cutting the outer contour of the left side of the fin in the product area of the material belt;
fourthly, performing primary flanging pressing on the side sheet through a first flanging punch in a cutting area of the fin on the material belt, and bending downwards a buckling part perpendicular to the substrate at the center of the outer side edge of the side sheet;
Step five, carrying out secondary flanging pressing on the side sheet through a second flanging punch in a cutting area of the fin on the material belt, and bending upwards a connecting part perpendicular to the substrate at a certain width at the outer side edge of the side sheet;
step six, carrying out third flanging pressing on the side sheet through a third flanging punch in a cutting area of the fin on the material belt, and bending the side sheet upwards along the width direction of the side sheet to form an included angle of 90 degrees with the substrate, so as to finish the whole processing process of the material belt;
and step seven, pushing the material belt into pressing equipment, and shearing a single fin area on the material belt to separate the single fin from the material belt.
And step eight, the ejector pins extend into the gaps between the two sliding blocks to push the two sliding blocks to slide towards two sides, so that the front fin and the rear fin are mutually buckled, and the whole process of processing the fin group in the radiator is completed.
Further, the heat sink comprises a thermally conductive substrate and the fin group; the fin group is annular and is formed by mutually buckling a plurality of fin structures along a preset angle; the fin group is fixedly arranged on the heat conducting substrate;
the fin structure comprises a substrate and an upper turnover sheet and a lower turnover sheet which are respectively and integrally bent by the upper edge and the lower edge of the substrate, wherein the upper turnover sheet and the lower turnover sheet are arranged towards the same side of the substrate and are parallel to each other; the two turnover sheets are of fan-shaped structures with consistent angles, the center of the annular fin group is defined as the inner side, and the inner edge length of each turnover sheet is smaller than the outer edge length of the turnover sheet;
The upper and lower turnover sheets of each fin structure are respectively provided with a buckle structure at the far end of the extension direction of the turnover sheets; the upper edge and the lower edge of the substrate close to the two turnover sheets are respectively provided with buckling holes which can be buckled with buckling structures of adjacent fin structures;
and the fin structures are vertically arranged in sequence in the same direction and buckled into the fin group.
According to a further technical scheme, the heat conducting substrate comprises a sheet-shaped body and an annular peripheral wall vertically connected to the periphery of the sheet-shaped body; the fin group is fixedly arranged on the sheet-shaped body and positioned in an assembly space defined by the annular peripheral wall.
According to a further technical scheme, the sheet-shaped body and the annular peripheral wall are provided with a plurality of through holes.
According to a further technical scheme, the lower turnover sheet is provided with an assembly hole for riveting the lower turnover sheet with the heat conducting base plate.
According to a further technical scheme, the lower turnover sheets are connected end to form a heat dissipation ring surface for abutting against the heat conducting substrate.
According to a further technical scheme, positioning holes are respectively formed in the inner sides of the two buckling holes on the substrate.
According to a further technical scheme, the buckling structure comprises a connecting part and a buckling part; the connecting part is fixedly arranged at the side edge of the turnover sheet and comprises a connecting end and two propping ends, and the connecting end is positioned in the middle of the two propping ends; the buckling part is turned outwards to form an angle and is fixedly arranged at the connecting end of the connecting part.
Further, the processing equipment correspondingly provided with the fin group in the radiator comprises a continuous progressive die and pressing equipment;
the continuous progressive die comprises an upper die assembly and a lower die assembly which relatively move in the vertical direction; the upper die assembly and the lower die assembly are internally connected with a plurality of punches;
the upper die assembly comprises an upper die seat, an upper base plate, an upper clamping plate, an upper platen and an upper stripper plate from top to bottom; the upper die assembly is internally provided with a punching punch, a positioning punch, a cutting punch and a flanging punch; the punching punch, the cutting punch and the flanging punch are respectively arranged on the left side and the right side of the material belt; the punching punch heads, the positioning punch heads, the cutting punch heads and the flanging punch heads are sequentially arranged at intervals from front to back according to the processing sequence of the product, and the processing procedures of punching, positioning, cutting and flanging are finished step by step;
the lower die assembly comprises a lower die plate, a lower base plate and a lower die holder; the lower template is fixedly arranged above the lower base plate; the lower base plate is fixedly arranged above the lower die holder; the upper surface of the lower die plate is provided with two groups of punching grooves, positioning grooves, cutting grooves and flanging parts in a downward concave manner; the flanging component is a flanging groove or a flanging lug, the punching groove is arranged corresponding to the punching punch, the positioning groove is arranged corresponding to the positioning punch, the cutting groove is arranged corresponding to the cutting punch, and the flanging component is arranged corresponding to the flanging punch;
At least two groups of feeding guide components are fixed at intervals along the moving direction of the material belt at two sides of the moving track of the material belt on the upper surface of the lower die plate, each group of feeding guide components comprises two first floating blocks aligned at two sides of the material belt, the first floating blocks are connected with the lower die base through first springs, and the first springs act on the vertical direction; the first floating material block is provided with a guide groove corresponding to the material belt, the height of the guide groove is larger than that of the material belt, and when the first spring is in a natural state, the guide groove is positioned above the upper surface of the lower template;
when the continuous progressive die works, the product material belt is driven to move between the upper die assembly and the lower die assembly step by step from front to back, and the product area in the middle of the product material belt is punched and processed step by step through two punching punches, one cutting punch and three flanging punches in the upper die assembly, so that the fins are formed;
the first punch is used for punching the product area of the material belt, the second punch is used for calibrating the position of the material belt, the third punch is used for cutting the product area of the material belt, the fourth punch is used for carrying out first flanging pressing on the cutting area of the product of the material belt, the fifth punch is used for carrying out second flanging pressing on the cutting area of the product of the material belt, and the sixth punch is used for carrying out third flanging pressing on the cutting area of the product of the material belt;
Defining the conveying direction of the material belt as the front-back direction;
the pressing equipment comprises a base, a pressing assembly and a sliding assembly;
an arc-shaped feeding channel is formed in the base, and the bending degree of the feeding channel is consistent with that of the side piece of the fin; the size of the feeding channel is relatively consistent with the size of the substrate of the fin, so that the fin is conveniently stamped;
the pressing assembly is arranged above the feeding channel in an alignment manner and comprises a pressing block and a thimble; the pressing block is provided with a pressing part, the outer edge dimension of the transverse section of the pressing part is relatively consistent with the dimension of the substrate of the fin, and the pressing part can be in clearance avoidance with the buckling structure of the fin in the pressing process; the bottom of the pressing block is provided with a through groove along the left-right direction, and the groove is positioned in the middle of the bottom of the pressing block; the center of the pressing block is provided with a penetrating hole;
the thimble comprises a top rod and a towing head, the towing head is fixedly arranged at the upper end of the top rod, and the diameter of the towing head is larger than that of the top rod; the ejector rod vertically penetrates through the penetrating hole along the length direction, and the length of the ejector rod is longer than that of the penetrating hole; the sliding component is embedded in the groove along the left-right direction and comprises a spring limiting block, a sliding block and a third spring; the two spring limiting blocks are respectively and fixedly arranged at the left end and the right end of the groove, and the outer surfaces of the spring limiting blocks are aligned with the pressing parts of the pressing blocks; the bottom of the spring limiting block is higher than the bottom of the pressing part; the two sliding blocks are arranged on the left side and the right side of the groove in a sliding mode; and a third spring is arranged between the sliding block and the limiting block, and is used between the sliding block and the spring limiting block, so that the sliding block keeps a trend of extending inwards.
According to a further technical scheme, at least one air step is arranged between the first punch and the second punch.
According to a further technical scheme, the flanging component comprises a first flanging component, a second flanging component and a third flanging component, and the three flanging components are gradually close to the material belt from back to front; the first flanging component is provided with two first flanging grooves, and the first flanging grooves are embedded in the upper surface of the lower die plate; the position of each first flanging groove corresponds to the buckling position of the material belt; the second flanging component is two first flanging convex blocks, and a second flanging groove is formed in the middle of the first flanging convex blocks and corresponds to the buckling part; the position of each first flanging lug corresponds to the position of the connecting part; the third flanging component comprises two second flanging convex blocks, and the second flanging convex blocks are convexly arranged on the upper surface of the lower die plate; the positions of the two second flanging convex blocks respectively correspond to the positions of the connection positions of the substrate and the two side sheets.
According to a further technical scheme, the sixth punch comprises a guide block and a flanging block; the guide block is fixedly arranged above the upper die plate, the left outer side wall and the right outer side wall of the guide block are provided with slopes with bottoms inclined inwards, and the left outer side wall and the right outer side wall are provided with sliding grooves along the directions of the slopes; the two flanging blocks are assembled with the guide block in a sliding way through the sliding grooves, so that the flanging blocks reciprocate in the up-down direction under the action of the upper die assembly, and the flanging blocks are closed inwards and opened outwards while moving up and down through the sliding grooves of the guide block; the heights of the two flanging blocks are relatively consistent with the heights of the guide blocks; the third flanging component further comprises a second floating block and a second spring; the second floating block is connected with the lower die holder through a second spring, and the second spring acts on the vertical direction; when the second spring is in a natural state, the horizontal height of the upper surface of the second floating block is relatively consistent with that of the upper surface of the second flanging lug.
According to a further technical scheme, the upper die assembly and the lower die assembly are connected in a guiding manner in the vertical direction through a guiding column.
According to a further technical scheme, the feeding guide assembly is arranged behind the cutting groove.
According to a further technical scheme, a groove is formed in the center of the bottom of the first floating block, and the inner wall of the groove is attached to the top of the first spring.
According to a further technical scheme, the pressing block further comprises two limiting parts, and the two limiting parts are respectively fixedly arranged on the left side and the right side of the upper portion of the pressing part.
According to the further technical scheme, a gap is reserved between the two sliding blocks, and the length of the gap is smaller than the radius of the penetrating part of the thimble.
According to a further technical scheme, an R angle is arranged at the outer edge of the bottom of the sliding block.
According to a further technical scheme, an R angle is arranged at the outer edge of the bottom of the ejector rod, and the top of the sliding block abutted against the ejector pin is provided with the R angle.
The working principle of the invention is as follows:
the invention provides processing equipment of an innovative design fin group, which can realize rapid and accurate fin forming and realize efficient assembly of the fin group. The processed fin group can improve the heat dissipation effect of the radiator under the relatively smaller volume, and effectively solve the heat dissipation problem of the electronic element. Compared with the prior art, the invention has the advantages of reliable and continuous process, high forming and assembling efficiency, high yield and the like from the forming of the single fin to the splicing and assembling of the whole fin group, and can effectively control the whole processing cost of the product.
Drawings
Fig. 1 is a schematic structural diagram of a fin-type radiator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heat conducting substrate and a housing of the fin-type radiator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fin set according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a single fin structure according to an embodiment of the present invention;
figure 5 is a front view of a single fin structure according to an embodiment of the present invention;
fig. 6 is a left side view of a single fin structure according to an embodiment of the present invention;
fig. 7 is a top view of a single fin structure according to an embodiment of the present invention;
fig. 8 is a bottom view of a single fin structure according to an embodiment of the present invention;
fig. 9 is a cross-sectional view of a plurality of fin structures engaged in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of a material belt according to an embodiment of the present invention;
FIG. 11 is a schematic view of an upper die assembly according to an embodiment of the present invention;
FIG. 12 is a schematic view of a lower die assembly according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view of the position of the progressive die feed guide assembly;
fig. 14 is an enlarged view at a of fig. 13;
FIG. 15 is a cross-sectional view of a seventh process step prior to clamping of the progressive die;
FIG. 16 is an enlarged view of FIG. 15 at B;
FIG. 17 is an enlarged partial view of a section at the seventh step in the continuous progressive die closing;
FIG. 18 is an enlarged partial view of a section taken at the seventh step after clamping of the progressive die;
FIG. 19 is a schematic structural diagram of a pressing device according to an embodiment of the present invention;
FIG. 20 is a cross-sectional view of a laminating apparatus according to an embodiment of the present invention;
fig. 21 is another angular cross-sectional view of a bonding apparatus according to an embodiment of the present invention.
In the above figures: 1. a fin group; 2. a thermally conductive substrate; 2a, a sheet-shaped body; 2b, an annular peripheral wall; 2c, assembling space; 2d, through holes; 3. a substrate; 4. a lower turnover sheet; 5. the upper turnover piece; 6. a buckle structure; 7. a buckling part; 8. a button hole; 9. a fitting hole; 10. positioning holes; 11. a connection end; 12. an abutment end; 13. an upper die holder; 14. an upper backing plate; 15. an upper clamping plate; 16. an upper platen; 17. an upper stripper plate; 18. a lower template; 19. a lower backing plate; 20. a lower die holder; 21. punching a punch; 22. positioning a punch; 23. cutting a punch; 24. a fourth punch; 25. a fifth punch; 26. a sixth punch; 27. punching a groove; 28. a positioning groove; 29. cutting the groove; 30. a first burring part; 31. a second burring part; 32. a third burring part; 33. a first float mass; 34. a first guide post; 35. a second guide post; 36. a first spring; 37. a guide groove; 38. a material belt; 39. a guide block; 40. a flanging block; 41. a second float mass; 42. a second spring; 43. a base; 44. a feed channel; 45. pressing a material block; 46. a thimble; 47. a pressing part; 48. a limit part; 49. a push rod; 50. a tug head; 51. a spring limiting block; 52. a slide block; 53. and a third spring.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings and examples:
examples: the present invention will be described in detail with reference to the drawings, wherein modifications and variations are possible in light of the teachings of the present invention, without departing from the spirit and scope of the present invention, as will be apparent to those of skill in the art upon understanding the embodiments of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Singular forms such as "a," "an," "the," and "the" are intended to include the plural forms as well, as used herein.
The terms "first," "second," and the like, as used herein, do not denote a particular order or sequence, nor are they intended to be limiting, but rather are merely used to distinguish one element or operation from another in the same technical term.
As used herein, "connected" or "positioned" may refer to two or more components or devices in physical contact with each other, or indirectly, or in operation or action with each other.
As used herein, the terms "comprising," "including," "having," and the like are intended to be open-ended terms, meaning including, but not limited to.
The term (terms) as used herein generally has the ordinary meaning of each term as used in this field, in this disclosure, and in the special context, unless otherwise noted. Certain terms used to describe the present disclosure are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in connection with the description herein.
The terms "front", "rear", "upper", "lower", "left", "right" and the like used herein are directional terms, and are merely used to describe positional relationships among the structures in the present application, and are not intended to limit the present protection scheme and the specific direction in actual implementation.
The invention discloses a processing technology of a fin group in a fin type radiator, which comprises the following steps:
step one, punching a product area of the material belt 38 to form a positioning hole 10, a buckling hole 8 and an assembly hole 9, wherein two positioning holes 10 and buckling holes 8 are arranged on the upper side and the lower side of the substrate 3 of the fin, and the assembly hole 9 is arranged on the outer side of one buckling hole 8.
And secondly, moving the material belt 38 forwards by two stations through the feeding guide assembly, and positioning and calibrating the material belt 38 through the positioning holes 10.
And thirdly, cutting the outer contour of the right side of the fin in the product area of the material belt 38.
And step four, cutting the left outer contour of the fin in the product area of the material belt 38.
And fifthly, carrying out first flanging pressing on the side sheet through a first flanging punch in the cutting area of the fin of the material belt 38, and bending downwards a buckling part 7 perpendicular to the substrate 3 at the center of the outer side edge of the side sheet.
And step six, carrying out secondary flanging pressing on the side sheet through a second flanging punch in the cutting area of the fin of the material belt 38, and bending a connecting part vertical to the substrate 3 upwards at a certain width at the outer side edge of the side sheet.
And step seven, carrying out third flanging pressing on the side sheet through a third flanging punch in the cutting area of the fin of the material belt 38, and bending the side sheet upwards along the width direction of the side sheet to form an included angle of 90 degrees with the substrate 3, so as to finish the whole processing process of the material belt 38.
Step eight, pushing the material pressing block 45 into the pressing device, and cutting the single fin area on the material belt 38 through the material pressing block 45 so as to separate the single fin from the material belt 38.
Step nine, the thimble 46 stretches into the gap between the two sliding blocks 52 to push the two sliding blocks 52 to slide towards two sides, so that the front fin and the rear fin are mutually buckled, and the whole process of product processing is completed.
Referring to fig. 1 to 9, the fin type radiator processed by the invention comprises a heat conducting substrate 2 and a fin group 1; the fin group 1 is annular and is formed by mutually buckling a plurality of fin structures along a preset angle; the fin group 1 is fixedly arranged on the heat conducting substrate 2.
The fin structure comprises a substrate 3 and an upper turnover sheet and a lower turnover sheet which are respectively and integrally and vertically bent by the upper edge and the lower edge of the substrate 3, wherein the upper turnover sheet 5 and the lower turnover sheet 4 are arranged towards the same side of the substrate 3 and are parallel to each other; the two turnover sheets are of fan-shaped structures with consistent angles, the center of the annular fin group 1 is defined as the inner side, and then the inner edge length of each turnover sheet is smaller than the outer edge length of the turnover sheet.
The upper and lower turnover sheets of each fin structure are respectively provided with a buckle structure 6 at the far end of the extension direction of the turnover sheets; the upper edge and the lower edge of the substrate 3 close to the two turnover sheets are respectively provided with buckling holes 8 which can be buckled with the buckling structures 6 of the adjacent fin structures;
the fin structures are vertically arranged in sequence in the same direction and buckled into the fin group 1.
Preferably, the heat conductive substrate 2 includes a sheet-like body 2a and an annular peripheral wall 2b vertically connected to the periphery of the sheet-like body 2 a; the fin group 1 is fixedly riveted on the sheet-shaped body 2a and positioned in an assembly space 2c defined by the annular peripheral wall 2 b.
Preferably, the sheet-shaped body 2a and the annular peripheral wall 2b are each provided with a plurality of through holes 2d. Can be used for heat dissipation and weight reduction.
Preferably, the lower turnover sheet 4 is provided with an assembly hole 9 for riveting with the heat conducting substrate 2. The connecting mode can be formed at one time, multiple times of processing are not needed, the processing time is saved, and the production efficiency is improved.
Preferably, each of the lower turnup sheets 4 is connected end to form a heat dissipation ring surface for abutting against the heat conducting substrate 2. The area of the radiating annular surface is larger than that of the annular surface formed by combining the upper turnover sheets, and the heat conduction effect is improved.
Preferably, the substrate 3 is provided with positioning holes 10 at the inner sides of the two buckling holes 8 respectively. For positioning during processing.
Preferably, the fastening structure 6 includes a connecting portion and a fastening portion 7; the connecting part is fixedly arranged at the side edge of the turnover sheet and comprises a connecting end 11 and two propping ends 12, and the connecting end 11 is positioned in the middle of the two propping ends 12; the buckling part 7 is turned outwards to form an angle and is fixedly arranged on the connecting end 11 of the connecting part. The buckling part 7 can be fixedly connected to the fin structures through the arrangement of the connecting part, so that the two fin structures can be buckled with each other; the contact area between the two fin structures can be increased through the two abutting ends 12, so that the firmness of the two fin structures after being mutually buckled is better, and the structural deformation can be prevented in the process of product assembly.
As shown in fig. 10 to 21, the processing technology of the present invention is implemented by a processing device, which includes a continuous progressive die and a pressing device.
The continuous progressive die comprises an upper die assembly and a lower die assembly which relatively move in the vertical direction; the upper die assembly and the lower die assembly are internally connected with a plurality of punches.
The upper die assembly comprises an upper die holder 13, an upper base plate 14, an upper clamping plate 15, an upper platen 16 and an upper stripping plate 17 from top to bottom; the upper die assembly is internally provided with a punching punch 21, a positioning punch 22, a cutting punch 23 and a flanging punch; two groups of punching punches 21, cutting punches 23 and flanging punches are respectively positioned on the left side and the right side of the material belt 38; the punching punch 21, the positioning punch 22, the cutting punch 23 and the flanging punch are sequentially arranged at intervals from front to back according to the product processing sequence, and the processing procedures of punching, positioning, cutting and flanging are completed step by step.
The lower die assembly comprises a lower die plate 18, a lower base plate 19 and a lower die holder 20; the lower template 18 is fixedly arranged above the lower base plate 19; the lower base plate 19 is fixedly arranged above the lower die holder 20; the upper surface of the lower die plate 18 is provided with two groups of punching grooves 27, positioning grooves 28, cutting grooves 29 and flanging parts in a downward concave manner; the flanging component is a flanging groove or a flanging lug, the punching groove 27 is arranged corresponding to the punching punch 21, the positioning groove 28 is arranged corresponding to the positioning punch 22, the cutting groove 29 is arranged corresponding to the cutting punch 23, and the flanging component is arranged corresponding to the flanging punch.
At least two groups of feeding guide assemblies are respectively fixed at intervals along the moving direction of the material belt 38 at the two sides of the moving track of the material belt 38 on the upper surface of the lower die plate 18, each group of feeding guide assemblies comprises two first floating blocks 33 which are aligned at the two sides of the material belt 38, the first floating blocks 33 are connected with the lower die holder 20 through first springs 36, and the first springs 36 act on the vertical direction; the first float block 33 is provided with a guide groove 37 corresponding to the material belt 38, the height of the guide groove 37 is greater than that of the material belt 38, and when the first spring 36 is in a natural state, the guide groove 37 is located above the upper surface of the lower die plate 18.
When the progressive die works, the product material belt 38 is driven to move between the upper die assembly and the lower die assembly step by step from front to back, and the product area in the middle of the product material belt 38 is punched and processed step by step through two punching punches 21, one cutting punch 23 and three flanging punches in the upper die assembly, so that the fins are formed.
The first punch is used for punching holes in the product area of the material belt 38, the second punch is used for calibrating the position of the material belt 38, the third punch is used for cutting the product area of the material belt 38, the fourth punch 24 is used for carrying out first flanging pressing in the cutting area of the product of the material belt 38, the fifth punch 25 is used for carrying out second flanging pressing in the cutting area of the product of the material belt 38, and the sixth punch 26 is used for carrying out third flanging pressing in the cutting area of the product of the material belt 38.
The conveying direction of the web 38 is defined as the front-rear direction.
The press-fit device includes a base 43, a press-fit assembly, and a slide assembly.
An arc-shaped feeding channel 44 is formed in the base 43, and the bending degree of the feeding channel 44 is consistent with that of the side piece of the fin; the feed channel 44 is sized to be relatively uniform with the size of the fin substrate 3 to facilitate stamping of the fins.
The pressing assembly is aligned above the feeding channel 44, and comprises a pressing block 45 and a thimble 46; the pressing block 45 is provided with a pressing part 47, the outer edge dimension of the transverse section of the pressing part 47 is relatively consistent with the dimension of the substrate 3 of the fin, and the pressing part 47 can be in clearance for avoiding the buckling structure 6 of the fin in the pressing process; a through groove is formed in the bottom of the pressing block 45 along the left-right direction, and the groove is positioned in the middle of the bottom of the pressing block 45; the center of the pressing block 45 is provided with a penetrating hole.
The thimble 46 comprises a mandril 49 and a towing head 50, the towing head 50 is fixedly arranged at the upper end of the mandril 49, and the diameter of the towing head 50 is larger than that of the mandril 49; the ejector rod 49 vertically penetrates through the penetrating hole along the length direction, and the length of the ejector rod 49 is larger than that of the penetrating hole.
The sliding component is embedded in the groove along the left-right direction and comprises a spring limiting block 51, a sliding block 52 and a third spring 53.
The two spring limiting blocks 51 are respectively and fixedly arranged at the left end and the right end of the groove, and the outer surfaces of the spring limiting blocks 51 are aligned with the pressing parts 47 of the pressing blocks 45; the bottom of the spring stopper 51 is higher than the bottom of the pressing portion 47.
Two sliding blocks 52 are arranged, and the two sliding blocks 52 are arranged on the left side and the right side of the groove in a sliding manner; a third spring 53 is further provided between the slider 52 and the stopper, and the third spring 53 acts between the slider 52 and the spring stopper 51 and keeps the slider 52 in an inwardly extending direction.
Preferably, at least one air step is arranged between the first punch and the second punch. The interval formed by the method is used for avoiding punches in different procedures, namely avoiding interference of adjacent punches, and ensuring the strength of the die plate.
Preferably, the flanging parts comprise a first flanging part 30, a second flanging part 31 and a third flanging part 32, and the three flanging parts gradually approach the material strip 38 from back to front; the first flanging component 30 is two first flanging grooves, and the first flanging grooves are embedded in the upper surface of the lower template 18; the position of each first flanging groove corresponds to the position of the buckling part 7 of the material belt 38; the second flanging component 31 is two first flanging convex blocks, and a second flanging groove is formed in the middle of the first flanging convex blocks and corresponds to the buckling part 7; the position of each first flanging lug corresponds to the position of the connecting part; the third flanging component 32 comprises two second flanging projections, and the second flanging projections are convexly arranged on the upper surface of the lower template 18; the positions of the two second flanging convex blocks respectively correspond to the positions of the connection positions of the substrate 3 and the two side sheets. The fourth punch 24 and the first flanging component 30 cooperate to form the buckling part 7 of the fin buckling structure 6; the second flanging groove is arranged to avoid interference to the buckling structure 6 formed by the first flanging in the process of the second flanging, and the fifth punch 25 and the second flanging part 31 jointly act to form a connecting part of the fin buckling structure 6; the side panels of the fin are formed by the co-action of the sixth punch 26 and the third flanging member 32.
Preferably, the sixth punch 26 includes a guide block 39 and a turnup block 40; the guide block 39 is fixedly arranged above the upper template, the left and right outer side walls of the guide block 39 are provided with slopes with bottoms inclined inwards, and the left and right outer side walls are provided with sliding grooves along the direction of the slopes; the two flanging blocks 40 are assembled with the guide block 39 in a sliding way through the sliding grooves, so that the flanging blocks 40 reciprocate in the up-down direction under the action of the upper die assembly, and the flanging blocks 40 are closed inwards and opened outwards while moving up and down through the sliding grooves of the guide block 39; the heights of the two flanging blocks 40 are relatively consistent with the height of the guide block 39; the third flange member 32 further includes a second float mass 41 and a second spring 42; the second floating block 41 is connected with the lower die holder 20 through a second spring 42, and the second spring 42 acts in the vertical direction; when the second spring 42 is in a natural state, the upper surface of the second float block 41 is relatively consistent with the upper surface of the second flanging bump in level. Before die assembly, the flanging block 40 abuts against the upper surface of the material belt 38, the guide block 39 does not touch the upper surface of the material belt 38, and the second floating block 41 moves downwards, and the horizontal height of the second floating block 41 is consistent with the horizontal height of the upper surface of the second flanging bump. In the mold closing process, the guide block 39 moves downwards and contacts the upper surface of the material belt 38, and meanwhile, the outer side wall of the guide block has an inclination of which the bottom is inwards inclined, so that the flanging block 40 moves downwards and slides to the left and the right at the same time, and the outer side wall of the flanging block 40 is attached to the inner walls of the two side plates; the sixth punch 26 further presses downwards to drive the second floating block 41 to move downwards against the elastic force of the spring, and the second flanging lug is matched with the second floating block to bend the two side pieces to 90 degrees. After the die is closed, the sixth punch 26 moves upwards, the second floating block 41 returns to the original height, the guide block 39 is separated from the upper surface of the material belt 38, and the flanging block 40 still fits with the upper surface of the material belt 38 due to gravity; the guide block 39 moves further upwards, and the outer side wall of the flange block 40 is far away from the inner walls of the two side plates because the bottom of the outer side wall of the guide block 39 is inclined inwards, so that the flange slides inwards in a closed manner during the upward movement of the guide block 39.
Preferably, the upper die assembly and the lower die assembly are connected in a guiding manner in the vertical direction through a guiding column. The guide posts comprise a first guide post 34 and a second guide post 35, the first guide post 34 is positioned on the lower die holder 20, and the first through hole which is in alignment fit is guided through the upper die holder 13; the second guide post 35 is located on the upper clamping plate 15 and extends out of the upper die plate, a second through hole is formed in the lower die assembly in a aligned manner, and the upper die plate, the upper platen 16 and the upper clamping plate 15 in the upper die assembly are connected in a guiding manner in a vertical direction through the second guide post 35, so that further precise guiding during punching is achieved.
Preferably, the feeding guide assembly is disposed behind the cutting groove 29. While facilitating the forward pushing of the strip 38, interference to the cutting punch 23 when cutting the fin outer profile is prevented, while avoiding material waste.
Preferably, a groove is formed in the center of the bottom of the first floating block 33, and the inner wall of the groove is attached to the top of the first spring 36. For preventing the first spring 36 from rotating in the lower die assembly, thereby affecting the up-and-down reciprocating displacement of the first float mass 33.
Preferably, the pressing block 45 further includes two limiting portions 48, and the two limiting portions 48 are respectively fixed on the left and right sides of the upper portion of the pressing portion 47. The counterpressure mass 45 is limited in the vertical direction in the feed channel 44.
Preferably, a gap is left between the two sliders 52, and the length of the gap is smaller than the radius of the penetrating portion of the thimble 46. When the bottom of the thimble 46 is positioned in the pressing block 45, the side surface of the sliding block 52 is aligned with the side surface of the spring limiting block 51; when the ejector pins 46 extend downwards into the gap between the two sliding blocks 52, and the bottom surfaces of the ejector pins 46 abut against the substrate 3 of the fin, the two sliding blocks 52 slide leftwards and rightwards respectively, and the side surfaces of the two sliding blocks 52 abut against the inner surfaces of the side pieces of the fin; in the sliding process of the sliding blocks 52, the outer sides of the bottoms of the two sliding blocks 52 are abutted against the buckling structures 6, and in the outward sliding process of the sliding blocks 52, the area of the bottoms of the sliding blocks 52, which are attached to the buckling structures 6, is increased, and then the buckling structures 6 are pressed downwards, so that the buckling structures 6 of the entering fins are buckled with buckling holes 8 of the previous fin; the upper end surfaces of the two sliding blocks 52 are provided with chamfers, and the bottoms of the ejector rods 49 are abutted against the chamfers.
Preferably, the outer edge of the bottom of the slider 52 is provided with an R angle. When the buckling structure 6 of the entering fin stretches into the buckling hole 8 of the previous fin, the side edge of the slider 52 is convenient to abut against the buckling part 7 of the fin in the sliding process, and when the slider 52 slides outwards again, the R angle enables the buckling part 7 to be slowly close to the connecting part of the fin, so that the buckling structure 6 of the entering fin is in buckling fit with the buckling hole 8 of the previous fin, breakage between the buckling part 7 and the connecting part is avoided, and mutual buckling between the two fins is affected.
Preferably, the outer edge of the bottom of the ejector rod 49 is provided with an R angle, and the top of the slider 52 abutting against the ejector pin 46 is provided with an R angle. The bottom of the ejector rod 49 and the top of the sliding block 52 are both provided with R angles, so that the sliding rod can extend into the sliding block 52 more quickly and labor-saving, the sliding block 52 is pushed to slide towards two sides conveniently, and the mutual buckling of the front fin and the rear fin is realized.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. A processing technology of a fin group in a radiator is characterized in that: the method comprises the following steps:
step one, punching a product area corresponding to a material belt (38) to form a positioning hole (10), a buckling hole (8) and an assembly hole (9), wherein at least two positioning holes (10) and buckling holes (8) are respectively arranged on the upper side and the lower side of a substrate (3) of the fin; the assembly hole (9) is positioned at the outer side of one buckling hole (8);
step two, feeding the material belt (38) forwards to two stations, and positioning and calibrating the material belt (38) through the positioning holes (10);
cutting the outer contour of the right side of the fin in the product area of the material belt (38), and cutting the outer contour of the left side of the fin in the product area of the material belt (38);
fourthly, performing first flanging pressing on the side sheet through a first flanging punch in a cutting area of the fin on the material belt (38), and bending downwards a buckling part (7) at the center of the outer side edge of the side sheet;
step five, carrying out secondary flanging pressing on the side piece through a second flanging punch in a cutting area of the fin on the material belt (38), and bending a connecting part upwards at the outer side edge of the side piece with a certain width;
Step six, carrying out third flanging pressing on the side sheet through a third flanging punch in a cutting area of the fin on the material belt (38), and bending the side sheet upwards along the width direction of the side sheet to form an included angle of 90 degrees with the substrate (3), so as to finish the processing of the material belt (38);
step seven, the material belt is pushed into pressing equipment, and a single fin area on the material belt (38) is sheared, so that the single fin is separated from the material belt (38);
and step eight, pushing the two sliding blocks (52) to slide towards two sides, so that the front fins and the rear fins are mutually buckled, and assembling and processing of the fin group (1) in the radiator are completed.
2. The process for manufacturing a fin group in a heat sink according to claim 1, wherein:
the heat sink comprises a heat conducting substrate (2) and the fin group (1); the fin group (1) is annular and is formed by mutually buckling a plurality of fin structures along a preset angle; the fin group (1) is fixedly arranged on the heat conducting substrate (2);
the fin structure comprises a substrate (3) and an upper turnover sheet and a lower turnover sheet which are respectively and vertically bent integrally by the upper edge and the lower edge of the substrate (3), wherein the upper turnover sheet (5) and the lower turnover sheet (4) are arranged towards the same side of the substrate (3) and are parallel to each other; the two turnover sheets are of fan-shaped structures with consistent angles, and the center of the annular fin group (1) is defined as the inner side, so that the inner edge length of each turnover sheet is smaller than the outer edge length of the turnover sheet;
The upper and lower turndown sheets of each fin structure are provided with a buckle structure (6) at the far end of the extending direction of the turndown sheet; the upper edge and the lower edge of the substrate (3) close to the two turnover sheets are respectively provided with buckling holes (8) which can be buckled with buckling structures (6) of adjacent fin structures;
the fin structures are vertically arranged in sequence in the same direction and buckled into the fin group (1).
3. The process for manufacturing a fin group in a heat sink according to claim 1, wherein: the method is realized by a processing device, wherein the processing device comprises a continuous progressive die and a pressing device;
the continuous progressive die comprises an upper die assembly and a lower die assembly which relatively move in the vertical direction; the upper die assembly and the lower die assembly are internally connected with a plurality of punches;
the upper die assembly comprises an upper die holder (13), an upper base plate (14), an upper clamping plate (15), an upper platen (16) and an upper stripper plate (17) from top to bottom; the upper die assembly is internally provided with a punching punch (21), a positioning punch (22), a cutting punch (23) and a flanging punch; the punching punch head (21), the cutting punch head (23) and the flanging punch head are respectively arranged at the left side and the right side of the material belt (38); the punching punch heads (21), the positioning punch heads (22), the cutting punch heads (23) and the flanging punch heads are sequentially arranged at intervals from front to back according to the processing sequence of the product, and the processing procedures of punching, positioning, cutting and flanging are finished step by step;
The lower die assembly comprises a lower die plate (18), a lower base plate (19) and a lower die holder (20); the lower template (18) is fixedly arranged above the lower base plate (19); the lower base plate (19) is fixedly arranged above the lower die holder (20); the upper surface of the lower die plate (18) is provided with two groups of punching grooves (27), positioning grooves (28), cutting grooves (29) and flanging parts in a downward concave manner; the flanging component is a flanging groove or a flanging lug, the punching groove (27) is arranged corresponding to the punching punch (21), the positioning groove (28) is arranged corresponding to the positioning punch (22), the cutting groove (29) is arranged corresponding to the cutting punch (23), and the flanging component is arranged corresponding to the flanging punch;
at least two groups of feeding guide assemblies are respectively fixed at intervals along the moving direction of the material belt (38) at two sides of the moving track of the material belt (38) on the upper surface of the lower die plate (18), each group of feeding guide assemblies comprises two first floating blocks (33) which are arranged at two sides of the material belt (38) in an aligned mode, the first floating blocks (33) are connected with the lower die holder (20) through first springs (36), and the first springs (36) act on the vertical direction; the first floating block (33) is provided with a guide groove (37) corresponding to the material belt (38), the height of the guide groove (37) is larger than that of the material belt (38), and when the first spring (36) is in a natural state, the guide groove (37) is positioned above the upper surface of the lower template (18);
When the continuous progressive die works, the product material belt (38) is driven to move between the upper die assembly and the lower die assembly step by step from front to back, and the product area in the middle of the product material belt (38) is punched step by step through two punching punches (21), one cutting punch (23) and three flanging punches in the upper die assembly, so that the fins are formed;
the first punch is used for punching holes in the product area of the material belt (38), the second punch is used for calibrating the position of the material belt (38), the third punch is used for cutting the product area of the material belt (38), the fourth punch (24) is used for carrying out first flanging pressing in the cutting area of the product of the material belt (38), the fifth punch (25) is used for carrying out second flanging pressing in the cutting area of the product of the material belt (38), and the sixth punch (26) is used for carrying out third flanging pressing in the cutting area of the product of the material belt (38);
defining the conveying direction of the material belt (38) as the front-back direction;
the pressing device comprises a base (43), a pressing assembly and a sliding assembly;
an arc-shaped feeding channel (44) is formed in the base (43), and the bending degree of the feeding channel (44) is consistent with that of the side piece of the fin; the size of the feeding channel (44) is relatively consistent with the size of the substrate (3) of the fin, so that the fin can be punched conveniently;
The pressing assembly is arranged above the feeding channel (44) in an aligned mode, and comprises a pressing block (45) and a thimble (46); the pressing block (45) is provided with a pressing part (47), the outer edge dimension of the transverse section of the pressing part (47) is relatively consistent with the dimension of the substrate (3) of the fin, and the pressing part (47) can be in clearance avoidance with the buckling structure (6) of the fin in the pressing process; the bottom of the pressing block (45) is provided with a through groove along the left-right direction, and the groove is positioned in the middle of the bottom of the pressing block (45); a penetrating hole is formed in the center of the pressing block (45);
the thimble (46) comprises a mandril (49) and a towing head (50), the towing head (50) is fixedly arranged at the upper end of the mandril (49), and the diameter of the towing head (50) is larger than that of the mandril (49); the ejector rod (49) vertically penetrates through the penetrating hole along the length direction, and the length of the ejector rod (49) is larger than that of the penetrating hole;
the sliding component is embedded in the groove along the left-right direction and comprises a spring limiting block (51), a sliding block (52) and a third spring (53);
The two spring limiting blocks (51) are respectively and fixedly arranged at the left end and the right end of the groove, and the outer surfaces of the spring limiting blocks (51) are aligned with the pressing parts (47) of the pressing blocks (45); the bottom of the spring limiting block (51) is higher than the bottom of the pressing part (47);
two sliding blocks (52) are arranged, and the two sliding blocks (52) are arranged on the left side and the right side of the groove in a sliding mode; a third spring (53) is arranged between the sliding block (52) and the limiting block, and the third spring (53) acts between the sliding block (52) and the spring limiting block (51) and keeps the sliding block (52) in an inward extending trend.
4. A process for manufacturing a fin group in a heat sink according to claim 3, wherein: at least one air step is arranged between the first punch and the second punch.
5. A process for manufacturing a fin group in a heat sink according to claim 3, wherein: the flanging parts comprise a first flanging part (30), a second flanging part (31) and a third flanging part (32), and the three flanging parts gradually approach the material belt (38) from back to front; the first flanging component (30) is provided with two first flanging grooves, and the first flanging grooves are embedded in the upper surface of the lower die plate (18); the position of each first flanging groove corresponds to the position of a buckling part (7) of the material belt (38); the second flanging component (31) is two first flanging convex blocks, and a second flanging groove is formed in the middle of the first flanging convex blocks and corresponds to the buckling part (7); the position of each first flanging lug corresponds to the position of the connecting part; the third flanging component (32) comprises two second flanging convex blocks, and the second flanging convex blocks are convexly arranged on the upper surface of the lower die plate (18); the positions of the two second flanging convex blocks respectively correspond to the positions of the connecting positions of the substrate (3) and the two side sheets.
6. The process for manufacturing a fin group in a heat sink according to claim 5, wherein: the sixth punch (26) comprises a guide block (39) and a flanging block (40); the guide block (39) is fixedly arranged above the upper die plate, the left and right outer side walls of the guide block (39) are provided with slopes with bottoms inclined inwards, and the left and right outer side walls are provided with sliding grooves along the directions of the slopes; the two flanging blocks (40) are assembled with the guide block (39) in a sliding way through the sliding grooves, the flanging blocks (40) reciprocate in the up-down direction under the action of the upper die assembly, and the flanging blocks (40) are closed inwards and opened outwards while moving up and down through the sliding grooves of the guide block (39); the heights of the two flanging blocks (40) are relatively consistent with the height of the guide block (39); the third flanging component (32) further comprises a second float block (41) and a second spring (42); the second floating block (41) is connected with the lower die holder (20) through a second spring (42), and the second spring (42) acts on the vertical direction; when the second spring (42) is in a natural state, the upper surface of the second floating block (41) is relatively consistent with the upper surface of the second flanging lug in horizontal height.
7. A process for manufacturing a fin group in a heat sink according to claim 3, wherein: the upper die assembly and the lower die assembly are connected in a guiding manner in the vertical direction through a guiding column.
8. A process for manufacturing a fin group in a heat sink according to claim 3, wherein: the feeding guide assembly is arranged behind the cutting groove (29).
9. A process for manufacturing a fin group in a heat sink according to claim 3, wherein: a groove is formed in the center of the bottom of the first floating block (33), and the inner wall of the groove is attached to the top of the first spring (36).
10. A process for manufacturing a fin group in a heat sink according to claim 3, wherein: the pressing block (45) further comprises two limiting parts (48), and the two limiting parts (48) are respectively fixedly arranged on the left side and the right side of the upper part of the pressing part (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165166.8A CN116713398A (en) | 2023-02-24 | 2023-02-24 | Processing technology of fin group in radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165166.8A CN116713398A (en) | 2023-02-24 | 2023-02-24 | Processing technology of fin group in radiator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117505674A (en) * | 2024-01-05 | 2024-02-06 | 广州坤江汽车配件工业制造有限公司 | Stamping die capable of rapidly positioning and automatically returning materials |
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- 2023-02-24 CN CN202310165166.8A patent/CN116713398A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117505674A (en) * | 2024-01-05 | 2024-02-06 | 广州坤江汽车配件工业制造有限公司 | Stamping die capable of rapidly positioning and automatically returning materials |
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