CN108067555B - Metal part forming method - Google Patents
Metal part forming method Download PDFInfo
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- CN108067555B CN108067555B CN201610981715.9A CN201610981715A CN108067555B CN 108067555 B CN108067555 B CN 108067555B CN 201610981715 A CN201610981715 A CN 201610981715A CN 108067555 B CN108067555 B CN 108067555B
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- blank
- metal
- sleeved
- sleeve
- end part
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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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a forming method of a metal piece, which comprises the following steps: providing a metal embedding body and a sleeving blank, wherein the sleeving blank is in a hollow annular shape and comprises a first end part and a second end part which are arranged oppositely, an inner hole is formed in the middle of the sleeving blank, and the inner hole penetrates through the first end part and the second end part; pressing the metal insert into the inner hole of the sleeve blank; stamping the first end portion of the sleeve blank inwards to enable the first end portion to partially cover one end of the metal embedded body; and stamping the second end part of the sleeving blank inwards to enable the second end part to partially cover the other end of the metal embedded body so as to form a sleeving piece, wherein the sleeving piece is fixed on the outer side of the metal embedded body.
Description
Technical Field
The invention relates to a forming method of a metal piece, in particular to a forming method for combining a double-material metal piece.
Background
The metal piece is commonly used in electronic products or processing equipment and plays roles in supporting, connecting and the like. Some metal parts require a metal sleeve to be fixed on the periphery of a metal insert to manufacture a formed metal part. Generally, the metal sheathing member is made of a non-magnetically conductive metal, so that the metal member has excellent insulation against magnetic force. However, if the metal sheathing member needs to cover the upper and lower ends of the metal insert, the molding difficulty is high.
Disclosure of Invention
In view of the above, it is necessary to provide a method for forming a metal part to solve the above problems.
A forming method of a metal piece comprises the steps of providing a metal embedding body and a sleeved blank, wherein the metal embedding body and the sleeved blank are both made of metal, the sleeved blank is in a hollow annular shape and comprises a first end portion and a second end portion which are arranged oppositely, an inner hole is formed in the middle of the sleeved blank, and the inner hole penetrates through the first end portion and the second end portion; pressing the metal insert into the inner hole of the sleeve blank; stamping the first end portion of the sleeve blank inwards to enable the first end portion to partially cover one end of the metal embedded body; and stamping the second end part of the sleeving blank inwards to enable the second end part to partially cover the other end of the metal embedding body so as to form a sleeving piece, wherein the sleeving piece is fixed and attached to the outer side of the metal embedding body.
The forming method of the metal part provided by the invention can press the metal embedded body into the sleeved blank, and can perform necking on two ends of the sleeved blank by respectively punching the first end part and the second end part of the sleeved blank inwards so as to form the sleeved part. The forming method can manufacture formed metal parts and has simple manufacturing process.
Drawings
Fig. 1 is a schematic perspective view of a metal part in an embodiment of the present invention.
Figure 2 is a schematic perspective view of the metal part shown in figure 1 at another angle.
Figure 3 is a perspective view of a metal insert in the metal part shown in figure 1.
Fig. 4 is a flowchart of a method of forming a metal part according to an embodiment of the present invention.
Fig. 5 to 7 are cross-sectional views in the forming process of the metal member.
Figure 8 is a schematic view of a metal part during manufacture.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, the present invention provides a metal part 100, which includes a metal insert 10 and a sleeve 20 fixed outside the metal insert 10. One end of the metal insert 10 is a plane, the other end includes an annular peripheral portion 11 and a protruding portion 12 disposed in the peripheral portion 11, the protruding portions 12 are all cylindrical, an annular groove 13 is disposed between the peripheral portion 11 and the protruding portion 12, and the heights of the peripheral portion 11 and the protruding portion 12 are approximately equal.
The sleeve 20 is substantially annular, and the sleeve 20 includes a top portion 21 and a bottom portion 22 opposite to each other, and a side portion 23 connecting the top portion 21 and the bottom portion 22. The top 21 and the bottom 22 are respectively connected with the side 23 in a smooth transition manner. The top 21 and the bottom 22 of the sleeve 20 partially cover the upper and the lower ends of the metal insert 10, respectively. In the present embodiment, the top portion 21 of the socket 20 covers the peripheral edge portion 11 of the metal insert 10 and exposes the projection 12 of the metal insert 10.
In the present embodiment, the metal insert 10 is made of iron, and the socket 20 is made of aluminum. It is understood that the metal insert 10 and the sleeve 20 may be made of other metals. For example, the metal insert 10 is made of an iron alloy, and the socket 20 is made of a zinc alloy, but not limited thereto.
It is understood that the protrusion 12 and the groove 13 of the metal insert 10 may be eliminated, and in this case, both the upper and lower ends of the metal insert 10 are flat.
Referring to fig. 4, 5 and 8, the forming method of the metal piece 100 includes the following steps:
step S101: providing the metal insert 10 and the sleeve blank 30, as shown in fig. 8, the sleeve blank 30 is hollow and annular and includes a first end 31 and a second end 32 disposed opposite to each other, an inner hole 301 is disposed in the middle of the sleeve blank 30, and the inner hole 301 penetrates through the first end 31 and the second end 32.
In the present embodiment, the outer periphery of the metal insert 10 is circular, one end of the metal insert 10 is a flat surface, the other end includes an annular peripheral portion 11 and a protruding portion 12 provided in the peripheral portion 11, the protruding portion 12 is cylindrical, and an annular groove 13 is provided between the peripheral portion 11 and the protruding portion 12.
Preferably, the diameter of the inner hole 301 of the sleeve blank 30 is slightly smaller than the outer diameter of the metal insert 10, so as to facilitate the interference fit between the metal insert 10 and the sleeve blank 30.
In the present embodiment, the metal insert 10 is made of iron and the sleeve blank 30 is made of aluminum, it being understood that the metal insert 10 and the sleeve 20 may be made of other metals.
The sleeve blank 30 is placed in a first concave die 200, as shown in fig. 5, the first concave die 200 includes a first positioning member 210 and a second positioning member 220, the first positioning member 210 surrounds the outside of the second positioning member 220, and the height of the first positioning member 210 is lower than the height of the second positioning member 220. The sleeved blank 30 is placed on the first positioning member 210, and the top end of the second positioning member 220 is disposed in the inner hole 301 of the sleeved blank 30.
Step S102: the metal insert 10 is press-fitted into the inner hole 301 of the jacket blank 30.
The metal insert 10 is aligned with the inner hole 301 of the sleeved blank 30, and then the metal insert 10 is pressed into the sleeved blank 30 by using a first punch 300 disposed above the first female die 200, so that the metal insert 10 abuts against the second positioning element 220 and is located in the middle of the sleeved blank 30.
Step S103: the first end 31 of the sleeve blank 30 is punched inwardly so that the first end 31 partially covers one end of the metal insert 10.
Referring to fig. 6, a second punch 400 disposed above the first die 200 is used to punch the first end 31 of the sleeved blank 30, a surface of the second punch 400 facing the sleeved blank 30 is a processing surface 410, a middle portion of the processing surface 410 is a plane, and an edge portion of the processing surface is an arc.
During the punching, the first end 31 of the sleeve blank 30 is punched inward by the processing surface 410 of the second punch 400, so that the opening of the first end 31 of the sleeve blank 30 is reduced, and after the pressing, the first end 31 of the sleeve blank 30 is connected with the rest of the sleeve blank 30 in a substantially vertical and smooth transition manner, and the first end 31 covers one end of the metal insert 10.
Step S104: the second end 32 of the sleeve blank 30 is pressed inward, so that the second end 32 partially covers the other end of the metal insert 10 to form the sleeve 20, and the sleeve 20 is fixed on the outer side of the metal insert 10.
Referring to fig. 7, first, the sleeved blank 30 and the metal insert 10 are taken out from the first concave mold 200, and the sleeved blank 30 and the top 21 of the metal insert 10 are placed in a second concave mold 500 downward. A positioning groove 510 is formed in the second concave die 500, a third positioning member 520 is disposed in the positioning groove 510, and the first end portion 31 abuts against the third positioning member 520.
Next, the second end portion 32 of the jacket blank 30 is pressed by the second punch 400, and the second end portion 32 is pressed inward by the processing surface 410 of the second punch 400 so that the opening of the second end portion 32 is reduced to partially cover the other end of the metal insert 10.
After flattening, the sleeve blank 30 is formed into the sleeve 20, the first end 31 of the sleeve blank 30 is formed into the top 21 of the sleeve 20, the second end 32 of the sleeve blank 30 is formed into the bottom 22 of the sleeve 20, and the portion between the top 21 and the bottom 22 is formed into the side 23 of the sleeve 20. The top 21 and the bottom 22 are respectively connected with the side 23 in a smooth transition mode.
Since the third positioning member 520 of the second cavity die 500 can support the first end 31 of the blank 30, the first end 31 is prevented from being deformed when the second end 32 is punched. It is understood that in other embodiments, the second concave mold 500 may be eliminated, and the sleeved blank 30 and the metal insert 10 are taken out from the first concave mold 200 and then placed in the first concave mold 200 with the first end 31 facing downward in step S104.
It is understood that, after the step S104, the top portion 21 and the bottom portion 22 of the socket 20 may be shaped, so that the top portion 21 and the bottom portion 22 form a relatively flat plane.
It can be understood that after the step S104, the connecting portion between the top portion 21 and the side portion 23 of the sleeve 20 and the connecting portion between the bottom portion 22 and the side portion 23 can be subjected to a high-gloss chamfering process, so that the appearance of the molded metal part 100 is more beautiful.
It is understood that in other embodiments, the recess 13 of the metal insert 10 may be eliminated, in which case both ends of the metal insert 10 are flat, and the metal insert 10 has a disk shape as a whole.
It is understood that in other embodiments, the middle portion of the metal insert 10 may be provided with a through hole; the metal insert 10 may have other shapes as long as the outer periphery of the metal insert 10 is circular.
The metal forming method provided by the invention adopts an interference fit method to press the metal embedding body 10 into the sleeved blank 30, so that the metal embedding body 10 is tightly attached to the sleeved blank 30. The two ends of the sleeve blank 30 can be shrunk by pressing and flattening the two ends of the sleeve blank 30 inward, so that the top 21 and the bottom 22 of the formed sleeve 20 partially cover the two ends of the metal insert 10. The forming method can manufacture the formed metal piece 100, and the manufacturing process is simple.
In addition, other modifications within the spirit of the invention will occur to those skilled in the art, and it is understood that such modifications are included within the scope of the invention as claimed.
Claims (8)
1. A method of forming a metal article comprising:
providing a metal embedding body and a sleeving blank, wherein the metal embedding body and the sleeving blank are both made of metal, the sleeving blank is in a hollow annular shape and comprises a first end part and a second end part which are arranged oppositely, and an inner hole is formed in the middle of the sleeving blank and penetrates through the first end part and the second end part;
placing the sleeved blank in a first female die, wherein the first end part protrudes out of the first female die, the first female die comprises a first positioning piece and a second positioning piece, the first positioning piece surrounds the outer side of the second positioning piece, the height of the first positioning piece is lower than that of the second positioning piece, the sleeved blank is placed on the first positioning piece, the top end of the second positioning piece penetrates through the inner hole of the sleeved blank, and the metal embedded body is pressed in the inner hole of the sleeved blank;
stamping the first end part of the sleeve blank inwards in the whole circumferential direction, wherein the opening of the first end part is reduced and flattened, so that the first end part is partially wrapped on one end of the metal embedded body;
the sleeved blank and the metal embedded body are placed in a second concave die, the whole circumference of the second end portion of the sleeved blank is punched inwards, the opening of the second end portion is reduced and flattened, the second end portion is made to partially cover the other end of the metal embedded body, a sleeved piece is formed, the sleeved piece is fixed and attached to the outer side of the metal embedded body, the sleeved piece comprises a top portion and a bottom portion which are arranged oppositely, and a side portion which connects the top portion and the bottom portion, and the top portion and the bottom portion are perpendicular to the side portion respectively.
2. The method of claim 1, wherein the inner hole of the sleeve blank has a diameter smaller than the outer diameter of the metal member, and the metal insert is in interference fit with the sleeve blank.
3. The method as claimed in claim 1, wherein a first punch is used to press the metal insert into the inner hole of the blank set, such that the metal insert abuts against the second positioning member and is located in the middle of the blank set.
4. The method for forming a metal member as claimed in claim 1, wherein the first end portion of the set of blank members is pressed inward by a second punch, a surface of the second punch facing the set of blank members is a processing surface, a middle portion of the processing surface is a plane, and an edge portion of the processing surface is a circular arc.
5. The method for forming a metal member as claimed in claim 4, wherein the second punch is used to punch the second end of the sleeve blank inwards, the first end and the second end are respectively formed as a top and a bottom of the sleeve, a portion between the top and the bottom is formed as a side of the sleeve, and the top and the bottom are respectively connected with the side in a smooth transition manner.
6. The method of forming a metal article of claim 5, further comprising the steps of: after the sheathing member is formed, the top and the bottom are respectively shaped, so that the surfaces of the top and the bottom are flat.
7. The method for forming a metal piece according to claim 1, wherein a positioning groove is formed in the second concave die, a third positioning portion is formed in the positioning groove, and the first end portion abuts against the third positioning portion.
8. The method of claim 1, wherein the metal insert is made of iron and the sleeve blank is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610981715.9A CN108067555B (en) | 2016-11-08 | 2016-11-08 | Metal part forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610981715.9A CN108067555B (en) | 2016-11-08 | 2016-11-08 | Metal part forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108067555A CN108067555A (en) | 2018-05-25 |
| CN108067555B true CN108067555B (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610981715.9A Active CN108067555B (en) | 2016-11-08 | 2016-11-08 | Metal part forming method |
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| CN (1) | CN108067555B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935435B (en) * | 2021-01-28 | 2023-04-18 | 横店集团东磁股份有限公司 | Punch for compression molding of composite sheet hard alloy substrate and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4238815A1 (en) * | 1992-11-17 | 1994-05-19 | Richard Schlotter | Textile bobbins for synthetics - has one piece all metal construction |
| DE4435466A1 (en) * | 1994-10-04 | 1996-04-11 | Bosch Gmbh Robert | Process for producing connection between insert and tubular component |
| CN1156978A (en) * | 1995-07-25 | 1997-08-13 | 罗伯特·博施有限公司 | Process for joining insert to tubular part by flanging |
| CN1476358A (en) * | 2000-11-24 | 2004-02-18 | 本田技研工业株式会社 | Edge bending method and apparatus |
| CN201402743Y (en) * | 2009-03-17 | 2010-02-10 | 王琮怀 | Capacitor packaging structure |
| CN201823831U (en) * | 2010-09-30 | 2011-05-11 | 漳州市东林电子有限公司 | Border strip device for aluminum lamp shade |
| CN104334292A (en) * | 2012-05-28 | 2015-02-04 | 杰富意钢铁株式会社 | Method of forming structure having closed cross section, and device for forming structure having closed cross section |
-
2016
- 2016-11-08 CN CN201610981715.9A patent/CN108067555B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4238815A1 (en) * | 1992-11-17 | 1994-05-19 | Richard Schlotter | Textile bobbins for synthetics - has one piece all metal construction |
| DE4435466A1 (en) * | 1994-10-04 | 1996-04-11 | Bosch Gmbh Robert | Process for producing connection between insert and tubular component |
| CN1156978A (en) * | 1995-07-25 | 1997-08-13 | 罗伯特·博施有限公司 | Process for joining insert to tubular part by flanging |
| CN1476358A (en) * | 2000-11-24 | 2004-02-18 | 本田技研工业株式会社 | Edge bending method and apparatus |
| CN201402743Y (en) * | 2009-03-17 | 2010-02-10 | 王琮怀 | Capacitor packaging structure |
| CN201823831U (en) * | 2010-09-30 | 2011-05-11 | 漳州市东林电子有限公司 | Border strip device for aluminum lamp shade |
| CN104334292A (en) * | 2012-05-28 | 2015-02-04 | 杰富意钢铁株式会社 | Method of forming structure having closed cross section, and device for forming structure having closed cross section |
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| CN108067555A (en) | 2018-05-25 |
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