CN1022000C - Method of production for button type electric contact - Google Patents
Method of production for button type electric contact Download PDFInfo
- Publication number
- CN1022000C CN1022000C CN 91101568 CN91101568A CN1022000C CN 1022000 C CN1022000 C CN 1022000C CN 91101568 CN91101568 CN 91101568 CN 91101568 A CN91101568 A CN 91101568A CN 1022000 C CN1022000 C CN 1022000C
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- Prior art keywords
- drift
- main mould
- contact
- moulding
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000000465 moulding Methods 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 33
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910017727 AgNi Inorganic materials 0.000 claims description 6
- 238000012840 feeding operation Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011112 process operation Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The present invention relates to a manufacturing method of an electrical contact, which comprises a blanking process, a feeding process, a wire clamping process, a preforming process and a forming process. A main mould which is provided with a forming cavity is used for effectively preventing a preformed blank from moving or falling out after a first punch is removed to ensure the forming process to make good play; button-shaped contacts of various sizes and shapes can be produced by adopting the technology of the present invention, and the bonding strength of a composite contact of a product which is produced on a composite contact machine can reach more than 70MPa.
Description
The invention belongs to the manufacture method of electric component, especially relevant with the manufacture method of electric contact.Electric contact is the medium current on-load switch, indispensable contact in the multiple electric components such as relay, thermostat, timer.Can use homogenous material, also available composite material is made.Roughly can be divided into two big classes, a class is called rivet type, and a class is called button type, and its working face has two kinds on plane and sphere.According to the shape difference of contact bottom, the button type contact has platybasic type, boss type, multiple spot male-type, single-point male-type again and encircles different products shapes such as male-type more.The plate stamping moulding process is mainly adopted in the button type contact at present, uses homogenous material or composite material to make homogenous material contact and composite material contact respectively.The major defect of making the button type contact with process for stamping is that production efficiency is low, stock utilization is low, leftover pieces are many, often can not one-shot forming for button type electric contact sphere or the non-platybasic type in bottom surface.The rivet type contact is mainly adopted cold-forge forming technology on the composite contact machine at present, and it comprises that blank, wire rod clamp, give moulding and molding procedure.Giving moulding and molding procedure all is cold-forge forming in mould.Mould is made up of two parts, and a side is called main mould, and opposite side is called first drift and second drift, and the forming cavity of contact is in drift.When giving moulding, " leg " of rivet type contact in main mould, the contact head is in first drift.When carrying out molding procedure, withdraw from first drift, change second drift, because " leg " of contact be in main mould, the contact of therefore giving moulding can not drop out from main mould or be shifted, and can successfully carry out molding procedure.Though this manufacture method has overcome the above-mentioned shortcoming of punch forming contact, but be not suitable for the button type contact of nothing " leg ", for the button type contact, give contact blank after the moulding and after first drift withdraws from, easily from main mould, drop out or be shifted and can't carry out molding procedure.
The objective of the invention is to propose a kind of manufacture method of suitable button type electric contact, this manufacture method is the production efficiency height not only, and stock utilization is also high.
What the present invention proposed comprises that in the compound manufacture method of deciding moulding button type electric contact on the machine of touching blank and feeding, wire rod clamp, give moulding and molding procedure.Blank and feeding operation, wire rod clamps operation can continue to use the process system of rivet type contact, gives the main mould that molding procedure and molding procedure adopt the band forming cavity, hits the moulding of finishing button type electric contact with first drift and second drift respectively.Wherein, blank, feeding operation are that wire rod is passed knife edge die, wire rod is cut off and moves to the position of center line of main mould by cutting knife, the desire moulding material is contacted with main mould pin, wire rod clamps operation: first drift is forged pin and is shifted near main mould with giving, make to give and forge pin and contact with desiring moulding material, and then clamping desire moulding material.Give molding procedure: first drift further shifts near main mould, desires moulding material upsetting in the first drift die cavity and gives moulding, and said main mould has and the corresponding to forming cavity of product bottom shape at an end that contacts with first drift.Molding procedure: first drift is withdrawn from, and second drift hits and gives shaping blank near main mould, makes blank upsetting moulding in the die cavity of main mould and second drift composition, and second drift withdraws from after the moulding, and main mould pin ejects button contact product.When producing the button type composite contact, be that two kinds of wire rods with plied timber and basis material pass knife edge die respectively in blank and feeding operation, two kinds of wire rods are cut off and move to the position of center line of main mould respectively by cutting knife, basis material is contacted with main mould pin, and plied timber is at basis material and give and forging between the pin.Basis material and plied timber are clamped in main mould and give and forging between the pin, and moulding is given in upsetting in the first drift die cavity.Plied timber can be AgNi, AgCd, AgCdO, AgCe, AgPd etc., and basis material can be copper or copper alloy.The top of being made up of the main mould and second drift of forming cavity can be plane or sphere, and bottom surface can be platybasic type, boss type, multiple spot male-type, single-point male-type, for the button type contact of moulding different structure.
Fig. 1 is blank process operations schematic diagram in the button type contact manufacture method of the present invention's proposition.
Fig. 2 clamps the process operations schematic diagram for feeding in the button type contact manufacture method of the present invention's proposition, wire rod.
Mould and blank graph of a relation when giving moulding in the button type contact manufacture method of Fig. 3 for the present invention's proposition.
Mould and moulding contact graph of a relation during moulding in the button type contact manufacture method that Fig. 4 proposes for the present invention.
Fig. 5 is a kind of main mode structure figure.
Fig. 6 is another kind of main mode structure figure.
The manufacture method of the button type electric contact that the present invention proposes is fit to make composite contact especially, compares with punch forming process and can obviously improve labor productivity and stock utilization. Stock utilization is near 100%, at the product that per hour can produce on the composite contact machine more than 5000 when adopting wire rod processing button type electric contact. Can not give in process of production contact blank after the moulding and drop out from main mould or be shifted and affect the carrying out of molding procedure, this kind manufacture method is applicable to that making working face is that plane and sphere, bottom are the difform various contacts beyond flat type and the flat type. Both can make the homogenous material contact, again could Make composite contact. For the composite contact by different plied timbers such as Ag, AgCd, AgCdO, AgCe, AgCu, AgFe, AgNi, AgPd and different matrix material such as copper and copper alloy combination, only need to adopt to give accordingly moulding and molding technique parameter, all can make reaching more than the 70Mpa in conjunction with intensity of contact.
With the following example embodiments of the present invention and advantage are further described.
One, the contact of present embodiment is a platybasic type AgNi/Cu composite contact, and its working face is two kinds on sphere and plane.Adopting the AgNi silk of 1 millimeter of diameter is raw material.Moulding on No.D composite contact machine.Its manufacturing process comprises the blank operation, and the feeding blank clamps operation, gives molding procedure, molding procedure.
1. blank feeding operation.
Copper cash 6 is passed knife edge die 5, copper cash is cut off and moves to the position of center line of main mould 3, contact with main mould pin by copper tool 4.Again AgNi line 7 is passed knife edge die 8, by silver-colored cutter 9 with its cut-out and move to the copper cash top of main mould position of center line.
2. wire rod clamps operation
After copper material 6, silver material 7 moved to main mould center line, first drift 10 shifted near main mould 3 with giving forging pin 2 along direction of arrow A, gave and forged pin 11 contact silver material 7 and then clamping silver material and copper material.
3. give molding procedure
4. molding procedure
After giving moulding, first drift is withdrawn from, and second drift 12 hits main mould, makes to give shaping blank upsetting moulding in the die cavity of main mould and second drift composition.Then second drift withdraws from, and main mould pin 1 ejects button contact product 2.
It is 75MPa that the method that the product that makes is stipulated by GB11096-89 records its bond strength.In the production process, do not give the phenomenon that shaping blank drops out or is shifted, the utilance of wire rod is more than 98%, processes per hour can reach more than 5000 on the high composite contact machine of automaticity.
Two, selecting AgCd10, AgCd3, AgCe0.5 wire rod for use is plied timber, and the Cu line is a basis material, utilize this technology to make bottom shape and be platybasic type, multiple spot male-type and monocycle male-type, working face is the various button type composite contacts of plane and sphere.Its operation is roughly similar to embodiment one, and different is that second drift is different with the forming cavity shape that main intermode constitutes, the main mould that various contacts are used, and the shape of its forming cavity should be consistent with the product bottom shape.Parameter when the technological parameter when giving moulding is continued to use the production of same type of material rivet type contact.
In making contact procedure, do not give the situation that shaping blank drops out and is shifted from main mould.The contact periphery of making is smooth, and bond strength meets the requirements.The diameter tolerance of product is ± 0.1 millimeter, and thickness deviation is ± 0.05 millimeter, and multiple layer thickness tolerance is-0.1 millimeter.Per hour can reach more than 5000 in production on the composite contact machine.
Three, select the AgCe0.5 wire rod for use, utilize this technology to make the contact of homogenous material, its working face is a sphere, manufacturing process is roughly identical with example one, have only a kind of wire rod to pass a knife edge die when difference is blank, move to main mould position of center line and make the homogenous material contact through giving moulding and molding procedure.
Claims (4)
1, the manufacture method of button type electric contact is characterized in that said manufacture method comprises:
(1) blank, feeding operation
Wire rod is passed knife edge die, wire rod is cut off and moves to the position of center line of main mould, make and desire moulding material and contact with main mould pin by cutting knife,
(2) wire rod clamps operation
First drift is forged pin and is shifted near main mould with giving, makes to give to forge pin and contact with desiring moulding material, and then clamping desire moulding material,
(3) give molding procedure
First drift further shifts near main mould, desires moulding material upsetting in the first drift die cavity and gives moulding, and said main mould has and the corresponding to forming cavity of product bottom shape at an end that contacts with first drift,
(4) molding procedure
First drift is withdrawn from, and second drift hits and gives shaping blank near main mould, makes blank upsetting moulding in the die cavity of main mould and second drift composition, and second drift withdraws from after the moulding, and main mould pin ejects button contact product.
2, by the said manufacture method of claim 1, it is characterized in that said wire rod has two kinds, a kind of is plied timber, another kind is a basis material, two kinds of wire rods with plied timber and basis material in said blank, feeding operation pass knife edge die respectively, by cutting knife two kinds of wire rods are cut off, said basis material contacts with main mould pin, and plied timber is at basis material and give and forging between the pin.
3, by claim 1 or 2 said manufacture methods, it is characterized in that said plied timber is a kind of among AgNi, AgCd, AgCgD, AgCe, the AgPd, said basis material is a kind of in the copper and copper alloy.
4, by the said manufacture method of claim 3, second drift, one side that it is characterized in that the said forming cavity of being made up of the main mould and second drift is a kind of in plane and the sphere, and main mould one side is platybasic type, boss type, multiple spot male-type, single-point male-type, encircle a kind of in the male-type more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101568 CN1022000C (en) | 1991-03-18 | 1991-03-18 | Method of production for button type electric contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101568 CN1022000C (en) | 1991-03-18 | 1991-03-18 | Method of production for button type electric contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064964A CN1064964A (en) | 1992-09-30 |
| CN1022000C true CN1022000C (en) | 1993-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101568 Expired - Fee Related CN1022000C (en) | 1991-03-18 | 1991-03-18 | Method of production for button type electric contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022000C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10684102B2 (en) | 2010-09-17 | 2020-06-16 | Schott Ag | Method for producing a ring-shaped or plate-like element |
| DE102010045641A1 (en) * | 2010-09-17 | 2012-03-22 | Schott Ag | Process for producing a ring-shaped or plate-shaped element |
| KR102417333B1 (en) * | 2016-12-21 | 2022-07-05 | 현대자동차 주식회사 | An electrical contact materials |
-
1991
- 1991-03-18 CN CN 91101568 patent/CN1022000C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064964A (en) | 1992-09-30 |
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| C14 | Grant of patent or utility model | ||
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Owner name: BE YANYIJIN NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: BEIJING NON-FERROUS METAL RESEARCH GENERAL ACADEMY Effective date: 20011016 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20011016 Address after: Beijing City, 2 new mouth street, there are new materials research million gold Limited by Share Ltd Patentee after: Youyan Yijin New Material Co., Ltd. Address before: No. 2, Xinjie street, Beijing Patentee before: General Research Institute for Nonferrous Metals |
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |