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Machining progressive die used for increasing height of fins

A progressive die and height technology, which is applied in the field of fin processing, can solve the problems of the positioning hole height remaining unchanged or increasing, and the fin material becoming thinner, so as to improve heat dissipation efficiency, increase the force bearing area, and facilitate adjustment Effect

Active Publication Date: 2016-08-10
黄山三佳谊华精密机械有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing mold structure cannot realize that the height of the positioning hole remains unchanged or increases while the fin material becomes thinner

Method used

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  • Machining progressive die used for increasing height of fins
  • Machining progressive die used for increasing height of fins
  • Machining progressive die used for increasing height of fins

Examples

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Embodiment Construction

[0024] Examples such as Figures 1 to 5 As shown, a processing progressive die used to increase the height of the fins includes an upper template 1 and a lower template 2, and an extension station is arranged between the upper template 1 and the lower template 2. After the extension station, there are sequentially arranged Stations for punching, tearing, straightening and flanging.

[0025] The stretching station forms convex hulls on the fins through the continuous action of a set of stretching punches and stretching dies. This station is identical with existing design, does not describe in detail here.

[0026] The punching station punches a process hole on the end surface of the convex hull punched out by the extension station, so as to facilitate the cutting of the convex hull end surface by the next tearing station.

[0027] The tearing station cuts the end surface of the convex hull into several parts from the process hole to the surroundings;

[0028] The straighteni...

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Abstract

The invention discloses a machining progressive die used for increasing the height of fins. The machining progressive die comprises an upper die plate, a lower die plate and a drawing station arranged between the upper die plate and the lower die plate. A punching station, a tearing-open station, a straightening station and a flanging station are sequentially arranged behind the drawing station. A process hole is punched in the end face of a convex bag through the punching station, wherein the convex bag is punched through the drawing station. The end face of the convex bag is cut open around from the process hole into a plurality of parts through the tearing-open station. The torn end face of the convex bag is straightened through the straightening station. The flanging station carries out flanging operation on the top of the straightened convex bag. The punching station, the tearing-open station, the straightening station and the flanging station are arranged behind the drawing station, and therefore the end face of the convex bag can be straightened, the height of a locating hole is increased, and the problems that fin materials are thin, and the height of a locating hole does not meet the requirement are solved well. The machining progressive die can be widely applied to the fin machining field.

Description

technical field [0001] The invention relates to the field of fin processing, in particular to a processing progressive die for increasing the height of fins. Background technique [0002] The heat exchanger fins are mainly used for heat dissipation, and the heat exchanger fins are connected together by heat exchange tubes. Therefore, the fins of the heat exchanger are provided with positioning holes for accommodating the heat exchange tubes, and the distance between the fins of the heat exchanger depends on the height of the positioning holes. With the increasing pressure of market competition, in order to save costs, many customers require to reduce the thickness of the fins while ensuring the height of the fins. The existing progressive die for fin processing uses the extension station to make convex hulls on the fins, and then cuts off the end faces of the convex hulls to obtain the positioning hole structure. The height of the convex hull depends on the thickness of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/08B21D53/02
CPCB21D37/08B21D53/022
Inventor 储杰尤永贵李文霞
Owner 黄山三佳谊华精密机械有限公司
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