CN102189166B

CN102189166B - Method for manufacturing diode metal support

Info

Publication number: CN102189166B
Application number: CN201110052649.4A
Authority: CN
Inventors: 陈裕升
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2011-03-03
Filing date: 2011-03-03
Publication date: 2014-07-09
Anticipated expiration: 2031-03-03
Also published as: CN102189166A

Abstract

The invention discloses a method for manufacturing a diode metal support. The method comprises the following steps of: placing a metal plate provided with a first area and a second area on a stamping die, wherein the stamping die comprises a lower module and an upper module positioned above the lower module, the lower module comprises a lower basal body, the upper surface of the lower basal body is provided with a sunken part, the peripheral edge of the sunken part is convexly provided with an extrusion part, the upper module comprises an upper basal body, the lower surface of the upper basal body is convexly provided with a protruding part corresponding to the sunken part, and the side wall of the protruding part and the lower surface of the adjacent upper basal body form a chamfer; and stamping and molding the metal plate, downwards extruding the second area on the upper surface of the upper basal body, upwards jacking the second area at the same time by the extrusion part, and pushing the second area to move to the chamfer due to the opposite extrusion force.

Description

The preparation method of diode metal support

[technical field]

The present invention relates to a kind of preparation method of diode metal support, espespecially a kind of preparation method of the diode metal support with metallic reflection cup.

[background technology]

Diode metal support has been widely applied in illuminator, such as, street lamp, but along with social progress, diode metal support is tending towards slimming, miniaturization, and this just requires the higher demand that just can meet current market of measure of precision of doing manual work.For example in the Chinese patent of application number 200820000801.8, point out, for realizing the slimming of product, it is H that one its thickness of metallic plate sheet material is provided, application stamping technology, first go out a sunk area and a plurality of wiring pin module, the degree of depth of its sunk area is D, due to the ductility of its material and the limitation of stamping technology, easily know H > D, as shown in figure 10, need to carry out Multi-step forming, the degree of depth of sunk area is increased, the numerical value that is D becomes large, so repeatedly carry out punching press, cause operation loaded down with trivial details, increase manufacturing cost, consume a large amount of manpowers, material resources, even in the process of punching press, because the extensibility of material has certain limit, the density of metal material is subject to serious change, may cause Fracture of Metal Material, product percent of pass is reduced greatly, also can reduce greatly its service life, there is serious deficiency in this kind of preparation method.

In the face of the defect of this kind of product, naturally expect manufacturing the diode metal support of slimming with the better material of ductility, for example gold, but expensive due to gold, production cost is too high, and it is difficult to popular acceptance, is difficult to contend with main product.So we expect using other ductility better, easily realize the metal material of slimming, reduce the number of times of punching press, reduce fraction defective.Its method for making is as follows, as Fig. 1, it is the sheet metal 1 of W that one thickness is provided, on sheet metal 1, be provided with successively first area 11, second area 12, the 3rd region 13, use stamping technology to carry out one time punching molded to it, as Fig. 8, shown in Fig. 9, go out one have sunk area 111 ' and pin 13 ' metallic support 1 ', second area 12 is subject to the stretching of first area 11 and is bent into circular-arc, its sheet material is at the radius of the radian R >=W of bending place, but in sheet metal length, the width of sunk area, sunk area reflection angle, in the situation that the size of LED chip is limited, follow-up work is difficult to carry out, when punching press complete, stamping forming metallic support 1 ' put into plastic mould 5 injection mouldings, its plastic mould 5 comprises a male model 51 and a master mold 52, after matched moulds, sheet metal 1 after male model 51 and punch forming ' contact area be B, in the time injecting plastic cement, its plastic cement can produce very large injection pressure under the state of high speed and high pressure high temperature, plastic cement can be injected into sunk area 111 '.Even can flow into sunk area 111 ', cover reflector space, cause product bad.

Therefore,, for the defect of this kind of diode metal support in the market, be necessary to propose a kind of new preparation method.

[summary of the invention]

The object of the invention is to provide a kind of preparation method of diode metal support.

For achieving the above object, the present invention includes following steps:

One thin metal blank is provided; Sheet metal 1 is provided with successively first area 11 on sheet metal 1, second area 12, the three regions 13.

One diel is provided, for sheet metal described in punching press, described diel 2 comprises on one module 3 and module 4 once, described upper module 3 comprises matrix 31 and a lower substrate 41 that is positioned at described upper matrix 31 belows on one, the lower surface of described upper matrix 31 convexes with a protuberance 33, and the lower surface of the sidewall of described protuberance 33 and described adjacent upper matrix 31 forms a chamfering 32, the upper surface of described lower substrate 41 is arranged with a depressed part 42, establish a material extrusion portion 43 at the outward flange ring of described depressed part 42, described upper module 3 is applied to downward power, make described upper module 3 continue to move downward, sheet metal 1 described in punching press, described protuberance 33 extruding become described first area 11, the upper surface of described upper matrix 31 pushes described second area 12, described material extrusion portion 43 also extrudes described second area 12 makes second area 12 be recessed to form a groove 121, now second area 12 due to be subject to relatively to power, force the metal material of second area 12 to flow to described chamfering 14 places, punching press is complete, metallic support after punching press is electroplated, obtain the metallic support of wanting required for the present invention.

Compared with prior art, the present invention has the following advantages: by the disposable punch forming of diel, the metallic support obtaining, is convenient to the moulding of follow-up work injection moulding and product.Metallic support after electroplating is placed in to injection mold, and after matched moulds, the contact area of the metallic support after the patrix of injection mold and plating is A, this moment, plastic cement injects mould under HTHP fast state, because A is much larger than B, therefore plastic cement can not be penetrated into the sunk area of metallic support; Metallic support tool of the present invention can be effective the prevents that plastic cement is penetrated into the supporting region 111 of metallic support, reduces the generation of fraction defective, improves the quality of products.

[accompanying drawing explanation]

Fig. 1 is the cutaway view of sheet metal;

Fig. 2 is the cutaway view of diel of the present invention;

Fig. 3 is that sheet metal of the present invention is placed in the cutaway view on lower module;

Fig. 4 is that the upper surface of diel of the present invention moves downward to contact second area cutaway view;

Fig. 5 is that the upper surface of diel of the present invention moves downward and push second area cutaway view;

Fig. 6 is the cutaway view that metallic support that punching press of the present invention is gone out is put into plastic mould;

Fig. 7 is cutaway view after cutting bending forming of the present invention;

Fig. 8 is the cutaway view of the metallic support that obtains of prior art stamped metal sheet material;

Fig. 9 is the cutaway view that metallic support that prior art stamps out is put into plastic mould;

Figure 10 is the cutaway view of the metallic support that obtains of prior art punching press one thick metal plate.

The drawing reference numeral explanation of the specific embodiment:

Sheet metal 1

First area 11 second areas 12 the 3rd region 13 grooves 121

3 times modules of module, 4 gaps 14 in diel 2

Upper matrix 31 chamfering 32 protuberance 33 sunk areas 111

Lower substrate 41 depressed part 42 material extrusion portion 43 pedestals 112

Injection mold 5 male model 51 master mold 52 barricades 113

[specific embodiment]

For ease of better understanding object, structure, feature and effect etc. of the invention of this reality, now with the specific embodiment, concrete grammar of the present invention is described further by reference to the accompanying drawings.

Please refer to Fig. 1, for a thin metal blank 1 to be punched, on described sheet metal 1, be provided with successively first area 11, second area 12, the three regions 13.

Please refer to Fig. 2, for a diel 2 of the present invention, described diel 2 comprises on one module 3 and module 4 once, described upper module 3 comprises matrix 31 and a lower substrate 41 that is positioned at described upper matrix 31 belows on one, the lower surface of described upper matrix 31 convexes with a protuberance 33, and the lower surface of the sidewall of described protuberance 33 and described adjacent upper matrix 31 forms a chamfering 32; The upper surface of described lower substrate 41 is arranged with a depressed part 42, establishes a material extrusion portion 43 at the outward flange ring of described depressed part 42.

Please refer to Fig. 3, described sheet metal 1 is placed on described lower module 4, fixing described sheet metal 1, abuts against in described material extrusion portion 43 described second area 12, and the top of described depressed part 42 comprises described first area 11.

Please refer to Fig. 4, described upper module 3 is applied to a downward power, described upper module 3 is moved downward, when the upper surface of described upper matrix 31 rigidly connects while contacting described second area 12, described protuberance 33 pushes described first area 11 and is sunk in described first area 11 and enter described depressed part 42, form a depressed area 111, because described second area 12 is subject to the stretching of described first area 11 and bending, form one circular-arc in the bending place of described second area 12, now, between described second area 12 and described chamfering 32, there is a gap 14.

Please refer to Fig. 5, continue described upper module 3 to apply downward power, make described upper module 3 continue to move downward, sheet metal 1 described in continuation punching press, now, described protuberance 33 continues the described first area 11 after crimp, the upper surface of described upper matrix 31 starts to push described second area 12, because described material extrusion portion 43 also starts to extrude described second area 12, now second area 12 due to be subject to relatively to power, force the metal material of second area 12 to flow to 14 places, described gap, and then fill described gap 14, the described second area 12 in top upwards squeezes in described material extrusion portion 43, make second area 12 be recessed to form a groove 121.Described protuberance 33 moves downward, and pushes described first area 11 and forms a pedestal 112 and a barricade 113, and between described pedestal 112 and described barricade 113, shape has angle, and described angle is an obtuse angle.Punching press finishes, and obtains the metallic support after a moulding, and the metallic support after described moulding is electroplated, and makes it have properties of specular reflection.

Please refer to Fig. 6, one plastic mould 5 is provided, metallic support after electroplating for injection moulding, described plastic mould 5 comprises that a male model 51 and is positioned at a master mold 52 of described male model 51 belows, metallic support after prior art is electroplated is placed between male model 51 and master mold 52, and carry out matched moulds, after matched moulds, the contact area of the metallic support after the plating that described male model 51 and described the present invention obtain is A, because A is much larger than B, therefore plastic cement injects described plastic mould 5 under the high speed and high pressure condition of high temperature, can not be penetrated into metallic support after the plating that described the present invention obtains depressed area 111, can not cover reflector space, also improved the utilization rate of plastic cement simultaneously, improve reflection characteristic, thereby reduce product fraction defective, reached the requirement in market with its simple operation.

Please refer to Fig. 7, after injection moulding, bending and cutting are carried out in described the 3rd region 13, can obtain a lamp socket with reflection function.

In sum, the present invention has the following advantages:

1. described in, material extrusion portion is relative to extrusion metal sheet material with described upper module upper surface, force the metal material of second area 12 to flow to 14 places, described gap, and then fill described gap 14, the contact area of the metallic support after having increased described male model 51 and having electroplated, make plastic cement in the time of injection moulding, can not be penetrated into depressed area 111, avoid plastic cement to cover the result of reflector space, thereby guaranteed the reflection characteristic of metallic support, and then guaranteed the quality of product.

2. use thin metal blank, save material, reduced production cost, easily realize the slimming of product, miniaturization, has reached the demand in market,

3. utilize disposable punch forming technology, fracture and the embrittlement of having avoided metal to cause in Multi-step forming process, reduce process flow, reduces product fraction defective,

More than describing in detail is only the explanation of the present invention's preferred embodiment, and non-the scope of the claims that therefore limits to the present invention, so all this creation of utilization descriptions and diagramatic content institute for it equivalence techniques change, and are all contained in the scope of the claims of this creation.

Claims

1. a preparation method for diode metal support, is characterized in that, comprises the following steps:

One sheet metal is provided, is provided with a first area in described sheet metal, described first area has been peripherally installed with a second area, has been peripherally installed with one the 3rd region successively in described second area;

Described sheet metal is placed in a diel, described diel comprise module and be positioned at described lower module top one on module: described lower module comprises a lower substrate, the upper surface of described lower substrate is provided with depressed part, be convexly equipped with a material extrusion portion in the outer peripheral edges of described depressed part, described upper module comprises matrix on, convex with a protuberance corresponding with described depressed part in the lower surface of described upper matrix, the sidewall of described protuberance and the lower surface of adjacent described upper matrix form a chamfering, make material extrusion portion described in described second area close contact;

Described sheet metal is carried out to punch forming, described diel is applied to downward power, the lower surface of described upper module is moved downward to the described second area of contact, described first area is subject to the extruding of described protuberance and recessedly enters described depressed part, the bending of described second area Tensile and form one circular-arc and and described chamfering between there is a gap, described diel is continued to apply downward power, described upper module is moved downward, the lower surface of described upper matrix is the described second area of extruding downwards, described material extrusion portion's while is also upwards squeezed the described second area in top makes second area be recessed to form a groove, described second area promotes described second area and moves to described gap owing to being subject to relative extruding force, fill described gap.

2. the preparation method of diode metal support as claimed in claim 1, it is characterized in that: when described protuberance moves downward, push described first area and form a pedestal and a barricade, between described pedestal and described barricade, shape has angle, and described angle is an obtuse angle.

3. the preparation method of diode metal support as claimed in claim 2, is characterized in that: when after described pedestal and described barricade moulding, on described pedestal and described barricade, at least one metallic film is established in plating.