CN101925271B

CN101925271B - Metal processing piece with high bonding force

Info

Publication number: CN101925271B
Application number: CN2009101467227A
Authority: CN
Inventors: 林锦堂
Original assignee: Yuan Deng Metals Industrial Co Ltd
Current assignee: Kunshan Changyun Electronic Industry Co., Ltd.
Priority date: 2009-06-16
Filing date: 2009-06-16
Publication date: 2012-01-11
Anticipated expiration: 2029-06-16
Also published as: CN101925271A

Abstract

The invention relates to a metal processing piece with high bonding force, which is provided with a bonding part, wherein the bonding part is concavely provided with a first groove, and a second groove is arranged at the periphery of the first groove; a bonding wall is formed between the first groove and the second groove, and an opening is obliquely formed at the tail end of the bonding wall; and after the metal processing piece is bonded with a plastic piece by insert molding, because the plastics of the plastic piece penetrate into the bonding part, the plastic piece can not be detached after being formed so that the plastic piece and the metal processing piece can be stably combined.

Description

The metal processing piece of tool high bonding force

Technical field

The metal processing piece of the bond strength when a kind of metal processing piece of tool high bonding force, You Zhike increase metal processing piece combine with working of plastics utilization embedding ejaculation.

Background technology

The electronic product development is maked rapid progress, and day by day light, thin, short, the little design concept of guiding is main, lets many electronic products (as: mobile phone, notebook computer, PDA) can let the user be convenient to be easy to carry about with one; Yet in order to let the user be easy to carry, this electronic product can alleviate the weight of product mostly; The modal practice promptly is that the metal metal sheet is coated the shell of plastic parts as product, and with the reduction overall weight, and the metal metal sheet is except protecting the product; Can electroplate easily again, outward appearance such as baking vanish handles, so the outer shell joint of most of electronic products uses the metal metal sheet, and at present plastic parts when clad metal sheet metal spare; Greatly more than being coated with sticker between the two; Make the metal metal sheet can be tightly bonding, but this kind practice be for having following disappearance and inconvenience with plastic parts:

(1) its volume of sticker sclerosis back can slightly reduce (partially liq volatilization), causes easily between metal metal sheet and the plastic parts and produces the gap, and then reduce the yield of finished product.

(2) because the metal metal sheet is different with the coefficient of expansion of plastic parts; Making metal metal sheet and plastic parts be easy to generate because of rising-heat contracting-cold separates; Cause shell to damage, and the marketing channel sheet and the whole world of electronic product now, the weather of various places is all different again; Make this kind problem emerge in an endless stream, cause user's inconvenience.

When (three) the metal metal sheet combines with plastic parts, must wait for the sticker sclerosis, to make process time elongated; Cause the inconvenience in the production; And sticker uses required cost higher, is prone to cause the whole price of electronic product to improve, and then causes consumer's purchase intention to reduce.

Therefore, how can address the above problem and lack, be the problem place of being engaged in this relevant industries improvement that the dealer desires most ardently.

Summary of the invention

Main purpose of the present invention is; Utilize the junction surface on metal processing piece surface, the metal processing piece utilization is embedded penetrate with after working of plastics engages, because of the plastics infiltration junction surface of working of plastics; Promptly can't deviate from after working of plastics is shaped, let combining that working of plastics and metal processing piece can be stable.

For reaching above-mentioned purpose; Metal processing piece of the present invention surface is provided with the junction surface; And the junction surface is concaved with first groove, and the first groove periphery is provided with second groove, makes between first groove and second groove to be formed with joined wall; And let the terminal curving of joined wall be formed with opening part, and the internal diameter of this opening part is less than the internal diameter of first groove floor.

The metal processing piece of the tool high bonding force of the utility model because of the plastics of working of plastics infiltrate the junction surface, promptly can't be deviate from after working of plastics is shaped, and lets combining that working of plastics and metal processing piece can be stable, and has reached beneficial technical effects.

Description of drawings

Fig. 1 is the side cutaway view of preferred embodiment of the present invention;

Fig. 2 is the side-looking generalized section () of preferred embodiment of the present invention when being shaped;

Fig. 3 is the side-looking generalized section (two) of preferred embodiment of the present invention when being shaped;

Fig. 4 is the side-looking generalized section (three) of preferred embodiment of the present invention when being shaped;

Fig. 5 is the side-looking generalized section (four) of preferred embodiment of the present invention when being shaped;

The side cutaway view that Fig. 6 combines with working of plastics for preferred embodiment of the present invention;

Fig. 7 is the present invention's side cutaway view of a preferred embodiment again;

Fig. 8 is the present invention's side-looking generalized section () of a preferred embodiment when being shaped again;

Fig. 9 is the present invention's side-looking generalized section (two) of a preferred embodiment when being shaped again;

Figure 10 is the present invention's side cutaway view of combining with working of plastics of a preferred embodiment again;

Figure 11 is the side-looking generalized section () of the another preferred embodiment of the present invention when being shaped;

Figure 12 is the side-looking generalized section (two) of the another preferred embodiment of the present invention when being shaped;

The side cutaway view that Figure 13 combines with working of plastics for the another preferred embodiment of the present invention;

Figure 14 is the vertical view of the present invention's first preferred embodiment;

Figure 15 is the vertical view of the present invention's second preferred embodiment;

Figure 16 is the vertical view of the present invention's the 3rd preferred embodiment;

Figure 17 is the vertical view of the present invention's the 4th preferred embodiment.

Description of reference numerals

The 1-metal processing piece; The 11-junction surface; 111-first groove; 112-second groove; The 113-joined wall; The 114-opening part; 2-first diel; 3-second diel; The 4-working of plastics; 5-the 3rd diel.

Embodiment

See also shown in Figure 1; Find out that by knowing among the figure this metal processing piece 1 surface is provided with junction surface 11, and junction surface 11 is concaved with first groove 111; And first groove, 111 peripheries are provided with second groove 112; Make between first groove 111 and second groove 112 to be formed with joined wall 113, and let joined wall 113 ends be formed with opening part 114, and the internal diameter of opening part 114 is the internal diameter less than first groove, 111 bottom surfaces towards first groove, 111 centre curvings.

Please consult shown in Fig. 1-5 simultaneously again; Learn by knowing among the figure, when metal processing piece 1 surperficial desire shaping junction surface 11, stamp out first groove 111 (like Fig. 2 and shown in Figure 3) in metal processing piece 1 surface for utilizing first diel 2 earlier; And in order to prevent that metal processing piece 1 bottom surface from producing mold-mart when the punching press because of first diel 2; So first diel, 2 terminal outer rims are to become a concavity gradually towards the center, the terminal outer rim that makes first diel 2 makes metal processing piece 1 surface form destruction for can touch metal processing piece 1 surface earlier; Extrusion downwards makes metal processing piece 1 surface form first groove 111 again; So metal processing piece 1 surface is stressed for being gradually big shape, and lets metal processing piece 1 bottom surface be not easy to occur the punching press vestige, can keep metal processing piece 1 in electroplating or during outward appearance processing such as baking vanish; The handling procedure on surface can be reduced, and the good surface appearance face can be obtained; Moreover, after first groove 111 forms, utilize second diel 3 to stamp out second groove 112 (like Fig. 1, Fig. 4 and shown in Figure 5) in metal processing piece 1 surface again; Identical; In order to prevent that metal processing piece 1 bottom surface from producing mold-mart, the end of second diel 3 also be by outer rim for becoming a concavity gradually towards the center, and the outer rim of second diel 3 is greater than first diel; And when second diel 3 during in punching press; The terminal outer rim of second diel 3 forms metal processing piece 1 surface and destroys for touching first groove, the 111 surperficial outer rim places of metal processing piece 1 earlier, and extrusion downwards makes metal processing piece 1 surface form second groove 112 again; And let and be formed with joined wall 113 between first groove 111 and second groove 112; And during because of second diel 3 extrusion downwards, joined wall 113 upper sides can receive cross force and second diel 3 is gradually pushed on the inclined-plane of concavity, make to engage an ancient piece of jade, round, flat and with a hole in its centre 113 ends towards first groove, 111 centre curvings; And be formed with opening part 114, and the internal diameter of opening part 114 is the internal diameter less than first groove, 111 bottom surfaces.

See also shown in Figure 6; Find out by knowing among the figure; When metal processing piece 1 of the present invention and working of plastics 4 embed penetrate combine after, this working of plastics 4 is except meeting is formed at metal processing piece 1 surface, its plastics also can infiltrate in first groove 111 and second groove 112 at junction surface 11; And because joined wall 113 formed opening part 114 internal diameters of first groove, 111 peripheries are the internal diameter less than first groove, 111 bottom surfaces; Therefore infiltrate plastics in first groove 111 after being shaped, promptly can't deviate from first groove 111, and then make combining that working of plastics 4 and metal processing piece 1 can be stable.

See also shown in Figure 7 again; Find out that by knowing among the figure this metal processing piece 1 surface is provided with junction surface 11, and junction surface 11 is concaved with first groove 111; And first groove, 111 peripheries are provided with second groove 112; Make between first groove 111 and second groove 112 to be formed with joined wall 113, and let joined wall 113 ends be formed with opening part 114, and the external diameter of opening part 114 is the internal diameter greater than second groove 111 towards second groove, 112 centre curvings.

Please consult simultaneously again shown in Fig. 7-9, learn by knowing among the figure, in yet another embodiment of the invention; During this metal processing piece 1 surperficial desire shaping junction surface 11; For utilizing second diel 3 to stamp out second groove 112 (as shown in Figure 8) in metal processing piece 1 surface earlier, after second groove 112 forms, utilize first diel 2 to stamp out first groove 111 (as shown in Figure 9) in metal processing piece 1 surface again; And when first diel 2 during in punching press; The terminal outer rim of first diel 2 forms metal processing piece 1 surface and destroys for touching second groove, the 112 surperficial inner edge places of metal processing piece 1 earlier, and extrusion downwards makes metal processing piece 1 surface form first groove 111 again; And let and be formed with joined wall 113 between first groove 111 and second groove 112; And during because of first diel 2 extrusion downwards, joined wall 113 upper sides can receive pushing of cross force, make to engage an ancient piece of jade, round, flat and with a hole in its centre 113 ends towards second groove, 112 centre curvings; And be formed with opening part 114, and the external diameter of opening part 114 is the internal diameter greater than first groove 111.

See also shown in Figure 10 again; When the present invention again metal processing piece 1 and the working of plastics 4 of a preferred embodiment embed penetrate combine after; This working of plastics 4 is except meeting is formed at metal processing piece 1 surface; Its plastics also can infiltrate in first groove 111 and second groove 112 at junction surface 11, and because the external diameter of the joined wall 113 formed opening parts 114 of first groove, 111 peripheries be the internal diameter greater than second groove 111, therefore infiltrate plastics in second groove 112 after shaping; Promptly can't deviate from second groove 112, and then make combining that working of plastics 4 and metal processing piece 1 can be stable.

See also again shown in Figure 11-13, find out by knowing among the figure, in further embodiment of this invention; During this metal processing piece 1 surperficial desire shaping junction surface 11; For utilizing first diel 2 to stamp out first groove 111 (shown in figure 11) in metal processing piece 1 surface earlier, after first groove 111 forms, utilize the 3rd diel 5 again in the 111 peripheral edge surface punching presses of first groove; Because the inwall of first groove 111 does not have support; In order to do making the 3rd diel 5 when the 111 peripheral edge surface punching presses of first groove, first groove, 111 peripheries can crimp and bending (shown in figure 12) slightly in first groove 111, and let the internal diameter of first groove, 111 upper sides be the internal diameter less than first groove, 111 bottom surfaces; On the mat; When metal processing piece 1 and working of plastics 4 embed penetrate combine after (shown in figure 13), this working of plastics 4 is except meeting is formed at metal processing piece 1 surface, its plastics also can infiltrate in first groove 111 at junction surface 11; And because the internal diameter of first groove, 111 upper sides is the internal diameter less than first groove, 111 bottom surfaces; Therefore infiltrate plastics in first groove 111 after being shaped, promptly can't deviate from first groove 111, and then make combining that working of plastics 4 and metal processing piece 1 can be stable.

See also shown in Figure 14-17 again, find out by knowing among the figure, junction surface 11 of the present invention can be in metal processing piece 1 surface with circle, elongated or L shaped setting; And arrangement mode that can be different is arranged; Yet this partly must consider the external form of metal processing piece 1 and working of plastics 4, and the two required adhesion; Therefore arrangement mode and shape all can be different, therefore do not limit the present invention.

Therefore, the present invention is for solving the deficiency and the disappearance of known technology, and its key technology is:

(1) the present invention utilizes set junction surface 11, metal processing piece 1 surface; Metal processing piece 1 embedding injection molding method capable of using is combined with working of plastics 4; And the plastics of working of plastics 4 are for infiltrating in the junction surface 11 to deviate from; And let combining that working of plastics 4 can be firm with metal processing piece 1, and separate with metal processing piece 1 to prevent working of plastics 4, cause user's inconvenience or damage of product.

(2) the present invention directly forms junction surface 11 in metal processing piece 1 surface for utilizing diel, and does not need to use in addition other raw materials, with the reduction product cost, and can conveniently make.

The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and within spirit that claim limits and scope, can carry out many modifications, variation or equivalence to it, but they will fall in protection scope of the present invention all.

Claims

1. the metal processing piece of a tool high bonding force; It is characterized in that this metal processing piece surface is provided with the junction surface, and this junction surface is concaved with first groove; And this first groove periphery is provided with second groove; Be formed with joined wall between this first groove and second groove, this joined wall end is formed with opening part towards the first groove centre curving, and the internal diameter of this opening part is less than the internal diameter of first groove floor;

This first groove and second groove utilize first diel and the second diel punching press to form respectively.

2. have the metal processing piece of high bonding force according to claim 1, it is characterized in that, this first diel and the terminal outer rim of second diel become a concavity gradually towards the center.

3. have the metal processing piece of high bonding force according to claim 1, it is characterized in that this metal processing piece surface by utilizing embeds to penetrate and is provided with working of plastics, and the plastics of this working of plastics infiltrate in first groove and second groove at junction surface.

4. the metal processing piece of a tool high bonding force; It is characterized in that this metal processing piece surface is provided with the junction surface, and this junction surface is concaved with first groove; And this first groove periphery is provided with second groove; Be formed with joined wall between this first groove and second groove, this joined wall end is formed with opening part towards the second groove centre curving, and the external diameter of this opening part is the internal diameter greater than first groove;

5. like the metal processing piece of the said tool high bonding force of claim 4, it is characterized in that this metal processing piece surface by utilizing embeds to penetrate and is provided with working of plastics, and the plastics of this working of plastics infiltrate in first groove and second groove at junction surface.

6. the metal processing piece of a tool high bonding force; It is characterized in that; This metal processing piece surface is provided with the junction surface, and this junction surface is concaved with first groove, and this first groove surfaces periphery is for utilizing the 3rd diel in this first groove peripheral edge surface punching press; This first groove surfaces periphery is because of crimp bending slightly in this first groove, and the internal diameter of this first groove upper side is less than the internal diameter of first groove floor.