CN102527859B - Extrusion riveting process and mold for edge of central processing unit (CPU) heat conduction assembly - Google Patents
Extrusion riveting process and mold for edge of central processing unit (CPU) heat conduction assembly Download PDFInfo
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- CN102527859B CN102527859B CN201210012164.7A CN201210012164A CN102527859B CN 102527859 B CN102527859 B CN 102527859B CN 201210012164 A CN201210012164 A CN 201210012164A CN 102527859 B CN102527859 B CN 102527859B
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Abstract
The invention discloses an extrusion riveting process and an extrusion riveting mold for an edge of a central processing unit (CPU) heat conduction assembly. The process comprises the following steps of: forming a certain gap between a copper block and a heat dissipation base in a matched mode; extruding an edge material of a base window by using an extrusion mold to ensure that the edge material is extruded towards the copper block; and forming the assembly after the edge extrusion. The riveting mold comprises an upper die base, a lower die base and a stripper plate, wherein a lower die insert and a lower die core are arranged in a lower template; an upper die insert and a stripper plate core are arranged in the stripper plate; an upper die punch is arranged on an upper clamp plate; the lower end of the lower die insert is fixed on the lower template, and the upper end of the lower die insert is provided with a bulge; sliding slots are formed on the two sides of the bulge; and lower die reinforcing ribs are arranged at the periphery of the sliding slots. By the process and the mold, the quality stability and the production efficiency of products are improved, and the riveting retention force between the copper block and the base is greatly increased; the process and the mold have the advantages of high efficiency, stable quality, high retention force and low cost; the surface smoothness of the copper block can be ensured; and the process and the mold have a wide application range and are particularly suitable for small-sized material parts.
Description
Technical field
What the present invention relates to is the extruded-riveted technique in a kind of CPU heat conduction sub-assembly edge and riveting die thereof.
Background technology
Fin is a kind of device to the easy heat-generating electronic elements heat radiation in electrical equipment, and how by aluminium alloy, brass or bronze are made tabular, sheet, and splinteries etc., as cpu central processing unit in computer will be used sizable fin.At present, in the industry cycle middle CPU heat conduction sub-assembly use amount is larger, NB class display card radiating module particularly, and this CPU heat conduction sub-assembly is to combine by heat dissipation base and copper billet, copper billet is fixed on heat dissipation base, and existing combination is generally divided into soldering Mao He ﹑ salient point riveted and closing-up; This soldering riveted is that the mode by welding is fixed together, and its soldering cost of its this combination is high, and confining force is low, and confining force exists bad risk.And salient point riveted to be copper billet be placed on base, and the just gap 0.3mm that keeps beginning between it, then places and suppresses muscle 0.5*0.2mm ﹐ by lathe drift extruding base, base extruding copper billet; But this mode is deposited and can only be made for larger-size materials and parts, and confining force exist bad risk and outward appearance imperfect.In addition be closing-up mode, it is at heat dissipation base hole and the first monolateral 0.05mm in gap of copper billet salient point beginning; The spacing post ﹐ of counterdie of diel sinks while preventing salient point riveted; The strong convex point pressing ﹐ of drift makes its material rise toward base holes is swollen; And thisly exist that efficiency is low, cost is high, the faulty defect of scope of application finite sum outward appearance.Therefore, the processing mode of above-mentioned CPU heat conduction sub-assembly and production mould thereof need further to be improved.
Summary of the invention
For the deficiency existing in prior art, the present invention seeks to be to provide a kind of steady quality, efficiency is high, confining force is strong and can guarantees copper billet the face smooth bright and clean extruded-riveted technique in CPU heat conduction sub-assembly edge and riveting die thereof, its cost is low, applied widely, especially small size materials and parts are more outstanding.
To achieve these goals, the present invention realizes by the following technical solutions:
The extruded-riveted technique in CPU heat conduction sub-assembly edge, this CPU heat conduction sub-assembly comprises heat dissipation base and copper billet, and its processing step is: first, be processed with the base frames mouth of placing copper billet on heat dissipation base, copper billet is placed in base frames mouth, and this copper billet coordinates with heat dissipation base and has certain gap; Then, the skirt materials of pushing base window by extrusion die makes skirt materials push to copper billet direction, and the sub-assembly forming after edge extruding, is CPU heat conduction sub-assembly.
As preferred version, described copper billet coordinates the gap existing with heat dissipation base be 0.3mm.
As preferred version, described base frames mouth surrounding can be provided with reinforcement beading, when extruding, allows it to copper billet, extend.
The extruded-riveted mould in CPU heat conduction sub-assembly edge, comprises upper bolster, die shoe, stripper plate, is provided with upper padding plate and the train wheel bridge on upper padding plate is set on upper bolster, and described stripper plate is arranged on train wheel bridge; Described lower bolster is arranged on die shoe by lower bolster, it is characterized in that, in described lower bolster, be provided with the counterdie that can place the counterdie die of radiating bottom plate to be combined and be arranged on counterdie die one side and enter son, in described stripper plate, be provided with the patrix die corresponding with counterdie die and enter son with the de-plate that counterdie enters sub corresponding setting, on described train wheel bridge, be provided with a plurality of patrix drifts through stripper plate and patrix die; In the lower end of described counterdie die, be fixed on lower bolster, on the end of its upper end, establish and be also provided with projection, in described protruding both sides, be provided with slot to make way, its surrounding is provided with counterdie and suppresses muscle, for product, steps down.
As preferred version, between described train wheel bridge and stripper plate, be also provided with baffle plate.
As preferred version, described patrix drift is provided with fixture block, and described patrix drift is fixed on train wheel bridge by fixture block.
Further, described patrix die is provided with a plurality of drift via holes and suppresses muscle with the patrix that patrix die surrounding is set, and described patrix drift, is conveniently processed through die by drift via hole.
As preferred version, on described patrix die holder, be also provided with die shank, be convenient to staff's use.
The present invention is by the extruded-riveted technique in edge and riveting die thereof, stability and the production efficiency of product quality have been improved, greatly increased the confining force of copper billet and base riveted, it has advantages of that efficiency is high, steady quality, confining force is strong, cost is low, it can guarantee that copper billet face is smooth bright and clean, and especially small size materials and parts are more outstanding with Fan Wei Guang ﹐ for Shi.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, describe the present invention in detail;
Fig. 1 is the structural representation of the extruded-riveted mould in CPU heat conduction sub-assembly edge of the present invention;
Fig. 2 is counterdie mould core structure schematic diagram of the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the end face structure schematic diagram of patrix die of the present invention;
Fig. 5 is the structural representation of patrix drift of the present invention.
the specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
Referring to Fig. 1 to Fig. 3, the present embodiment be to provide the extruded-riveted technique in a kind of CPU heat conduction sub-assembly edge and, this CPU heat conduction sub-assembly comprises heat dissipation base 12 and copper billet 13, its processing step is: first, on heat dissipation base 12, be processed with the base frames mouth of placing copper billet 13, copper billet 13 is placed in base frames mouth, and this copper billet coordinates and has certain gap with heat dissipation base 12, and the copper billet of the present embodiment coordinates the gap existing with heat dissipation base 12 be 0.3mm; Then, the skirt materials of pushing base window by extrusion die makes skirt materials push to copper billet direction, and the sub-assembly forming after edge extruding, is CPU heat conduction sub-assembly.
The base frames mouth surrounding of the present embodiment can be provided with reinforcement beading, when extruding, allows it to copper billet, extend.
It is worth mentioning that, the extruded-riveted mould in CPU heat conduction sub-assembly edge of the present embodiment, comprises upper bolster 2, die shoe 9 and stripper plate 6; Upper padding plate 3 be installed on these upper bolster 2 lower surfaces and the train wheel bridge 4 on upper padding plate 3 is set, on its upper surface, being fixed with die shank 1, being convenient to taking of staff; Between train wheel bridge 4 and stripper plate 6, be also provided with baffle plate 5.Lower bolster 7 is arranged on die shoe 9 by lower bolster 8, the counterdie that can place the counterdie die 11 of radiating bottom plate 12 to be combined and be arranged on counterdie die 11 1 sides is installed in lower bolster 7 and enters son 10, in described stripper plate 6, be provided with the patrix die 15 corresponding with counterdie die 11 and enter son 14 with the de-plate that counterdie enters sub corresponding setting, at train wheel bridge 4, be fixed with the patrix drift 16 through stripper plate 6 and patrix die 15.
In the present embodiment, referring to Fig. 2 and Fig. 3, in the lower end of counterdie die 11, be fixed on lower bolster 7, establish and be also provided with projection 110 on the end of its upper end, this projection 110 is arranged on the centre position of counterdie die 11 end faces; In protruding 110 both sides, be provided with slot to make way 111, the strip groove that this slot to make way 111 adopts, for stepping down of product, meanwhile, is convenient to push the base frames mouth skirt materials of heat dissipation base 12, and the upper and lower mould of convenient placement is strengthened beading 112 simultaneously.By projection 110 is set, counterdie die 11 is divided into two parts is for convenient processing to the present embodiment, and after projection 110 need to be pushed down its contact-making surface requirement of Chan Pin ﹐ Ji Gao ﹐ split, projection 110 can be ground.
Referring to Fig. 4 and Fig. 5, in patrix drift 16 upper end one sides of the present embodiment, be fixed with fixture block 161, this patrix drift 16 is fixed on train wheel bridge 4 by fixture block 161.Patrix die 15 8 the drift via holes 151 that distributed, i.e. drop point corresponding to drift, this patrix drift 16 by drift via hole 151 through patrix die 15.In patrix die 15 surroundings, being provided with patrix, to suppress its function of muscle 152 ﹐ be that patrix die 15 end faces are divided into two parts is for convenient processing, and it is positioned at the patrix die contact-making surface of suppressing muscle inner side and need to pushes down its contact-making surface of Chan Pin ﹐ and require can grind after Ji Gao ﹐ split.
The present embodiment, when carrying out CPU heat conduction sub-assembly edge riveted, is first that copper billet 13 is placed in base frames mouth, and this copper billet 13 coordinates and has certain gap with heat dissipation base 12; Then, upper and lower mould suppressed to muscle along copper billet 13 and heat dissipation base 12 riveted limits and fixed; When mould matched moulds, be that patrix undershoot is depressed mould, heat dissipation base is subject to upper and lower mould and suppresses the material of the pressure Hou ﹐ heat dissipation base frame mouth marginal portion of muscle and be squeezed, then to copper billet direction, extend, this rear base is subject to the active force of patrix drift again, and again to copper billet material extrusion, the de-plate of recycling enters son 14 and counterdie enters son 10 compression copper-surfaced piece 12 and heat dissipation base binders, thereby by copper billet and the heat dissipation base formation sub-assembly that rivets together, the confining force that it has increased copper billet and base riveted greatly, has improved production efficiency.
The present invention is by the extruded-riveted technique in edge and riveting die thereof, realize punching press and replace welding, save processing cost, the manufacturing cost greatly reducing, improve product and manufacture competitiveness, widen similar products occupation rate of market, and stability and the production efficiency of product quality have been improved, greatly increased the confining force of copper billet and base riveted, it has advantages of that efficiency is high, steady quality, confining force is strong, cost is low, it can guarantee that copper billet face is smooth bright and clean, and especially small size materials and parts are more outstanding with Fan Wei Guang ﹐ for Shi.
The successful exploitation of edge Mao He Ji Intraoperative, for follow-up similar products provide valuable new approaches, has application value very widely!
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
- The extruded-riveted mould in 1.CPU heat conduction sub-assembly edge, comprises upper bolster, die shoe, stripper plate, is provided with upper padding plate and the train wheel bridge on upper padding plate is set on upper bolster, and described stripper plate is arranged on train wheel bridge; Lower bolster is arranged on die shoe by lower bolster, it is characterized in that, in described lower bolster, be provided with the counterdie that can place the counterdie die of heat dissipation base to be combined and be arranged on counterdie die one side and enter son, in described stripper plate, be provided with the patrix die corresponding with counterdie die and enter son with the de-plate that counterdie enters sub corresponding setting, on described train wheel bridge, be provided with a plurality of patrix drifts through stripper plate and patrix die; The lower end of described counterdie die is fixed on lower bolster, is also provided with projection on the end of its upper end; In described protruding both sides, be provided with slot to make way, its surrounding is provided with counterdie and suppresses muscle.
- 2. the extruded-riveted mould in CPU heat conduction sub-assembly according to claim 1 edge, is characterized in that, is also provided with baffle plate between described train wheel bridge and stripper plate.
- 3. the extruded-riveted mould in CPU heat conduction sub-assembly according to claim 1 edge, is characterized in that, described patrix drift is provided with fixture block, and described patrix drift is fixed on train wheel bridge by fixture block.
- 4. the extruded-riveted mould in CPU heat conduction sub-assembly according to claim 1 edge, is characterized in that, described patrix die is provided with a plurality of drift via holes and suppresses muscle with the patrix that patrix die surrounding is set, and described patrix drift passes die by drift via hole.
- 5. the extruded-riveted mould in CPU heat conduction sub-assembly according to claim 1 edge, is characterized in that, is also provided with die shank on described upper bolster.
- 6. according to the technique for riveting of the extruded-riveted mould in CPU heat conduction sub-assembly edge described in claim 1-5 any one, this CPU heat conduction sub-assembly comprises heat dissipation base and copper billet, its processing step is: first, on heat dissipation base, be processed with the base frames mouth of placing copper billet, copper billet is placed in base frames mouth, and this copper billet coordinates with heat dissipation base and has certain gap; Then, the skirt materials of pushing base frames mouth by extruded-riveted mould makes skirt materials push to copper billet direction, and the sub-assembly forming after edge extruding, is CPU heat conduction sub-assembly, and described base frames mouth surrounding is provided with reinforcement beading.
- 7. technique for riveting according to claim 6, is characterized in that, described copper billet coordinates the gap existing with heat dissipation base be 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210012164.7A CN102527859B (en) | 2012-01-16 | 2012-01-16 | Extrusion riveting process and mold for edge of central processing unit (CPU) heat conduction assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210012164.7A CN102527859B (en) | 2012-01-16 | 2012-01-16 | Extrusion riveting process and mold for edge of central processing unit (CPU) heat conduction assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102527859A CN102527859A (en) | 2012-07-04 |
| CN102527859B true CN102527859B (en) | 2014-04-02 |
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| CN201210012164.7A Expired - Fee Related CN102527859B (en) | 2012-01-16 | 2012-01-16 | Extrusion riveting process and mold for edge of central processing unit (CPU) heat conduction assembly |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406444A (en) * | 2013-07-18 | 2013-11-27 | 苏州旭创精密模具有限公司 | Continuous die capable of achieving intra-die riveting of laptop cooling fins |
| CN103691824B (en) * | 2013-11-22 | 2016-08-17 | 宁波拓普集团股份有限公司 | A kind of combination type riveting tool |
| CN103990722B (en) * | 2014-05-27 | 2016-05-11 | 江西聚声泰科技有限公司 | Horn component combined riveting tool |
| CN105750474A (en) * | 2016-04-26 | 2016-07-13 | 昆山市杰尔电子科技股份有限公司 | Automatic riveting press machine for CPU support |
| CN116100100A (en) * | 2023-03-27 | 2023-05-12 | 歌尔股份有限公司 | Inlet and processing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201632547U (en) * | 2010-02-25 | 2010-11-17 | 苏州珠城电气有限公司 | Insulating insert terminal punch die |
| CN201810447U (en) * | 2010-07-09 | 2011-04-27 | 严绍康 | Shield cover reducing riveting isolator structure |
| CN201820176U (en) * | 2010-09-15 | 2011-05-04 | 苏州聚力电机有限公司 | Stud bolt-free joining structure of heat dissipation module |
| CN201900189U (en) * | 2010-12-08 | 2011-07-20 | 合肥荣事达三洋电器股份有限公司 | Riveting die |
| CN202438605U (en) * | 2012-01-16 | 2012-09-19 | 昆山能缇精密电子有限公司 | Mould for extruding and riveting edge of CPU (Central Processing Unit) heat conduction combination member |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096076A1 (en) * | 2002-04-04 | 2006-05-11 | Eugen Rapp | Toll for riveted connection |
-
2012
- 2012-01-16 CN CN201210012164.7A patent/CN102527859B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201632547U (en) * | 2010-02-25 | 2010-11-17 | 苏州珠城电气有限公司 | Insulating insert terminal punch die |
| CN201810447U (en) * | 2010-07-09 | 2011-04-27 | 严绍康 | Shield cover reducing riveting isolator structure |
| CN201820176U (en) * | 2010-09-15 | 2011-05-04 | 苏州聚力电机有限公司 | Stud bolt-free joining structure of heat dissipation module |
| CN201900189U (en) * | 2010-12-08 | 2011-07-20 | 合肥荣事达三洋电器股份有限公司 | Riveting die |
| CN202438605U (en) * | 2012-01-16 | 2012-09-19 | 昆山能缇精密电子有限公司 | Mould for extruding and riveting edge of CPU (Central Processing Unit) heat conduction combination member |
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| CN102527859A (en) | 2012-07-04 |
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Granted publication date: 20140402 Termination date: 20200116 |