CN101369707B - Production method used for cam of electric connector - Google Patents
Production method used for cam of electric connector Download PDFInfo
- Publication number
- CN101369707B CN101369707B CN2007100260441A CN200710026044A CN101369707B CN 101369707 B CN101369707 B CN 101369707B CN 2007100260441 A CN2007100260441 A CN 2007100260441A CN 200710026044 A CN200710026044 A CN 200710026044A CN 101369707 B CN101369707 B CN 101369707B
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- Prior art keywords
- cam
- electric connector
- sheet metal
- mold
- forging
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A method for manufacturing an electric connector cam, is characterized in that forging and forming sheet metal using a stamping mold and includes the two following steps:(A) stock preparation: processing the sheet metal to make a stock belt with certain width and thickness, and locating one end of the stock belt in a pre-setting mold; (b) processing into a completed product: starting to operate, holding mold and regulating machine, and squeezing, cold-forging and molding the sheet metal into cam completed product with mass production using the mold. The method for manufacturing the cam using forging forming technique, simplifies produce molding job program and reduces processing cost; and the metal micro-fabric of the cam shows fibrous which enhances the strength of the cam, meanwhile the surface of the cam is more smooth and the mechanical property is well, which prolong the longevity of the electric connector using the cam.
Description
[technical field]
The invention relates to a kind of manufacturing approach of cam, especially a kind of manufacturing approach that is used for cam of electric connector.
[background technology]
Existing wafer module is to be electrically connected on the circuit board through electric connector, and it discloses like " the technical matters method of ball grid array socket " (P460-P466,1996 IEEE 46th Electronic Components&Technology Conference), in addition; In order to meet the frivolous trend of electric connector design, existing electric connector adopts cam or eccentric wheel structure to drive, and announces the 6th, 250 like United States Patent (USP); 941,6,254,415,6; 280,224,6,296; 507 and 6,338, the structure that is disclosed for No. 640.In addition, the existing electric connector relevant with the present invention generally comprises the tabular pedestal, is assembled in the lid of pedestal upper flat plate shape and the drive unit that runs through the base and cover body.Drive unit is a rotatable cam normally, utilizes the rotation of cam can drive the relative pedestal slip of lid.
Yet the cam that is used for electric connector adopts the process of die cast usually, promptly utilizes mold cavity that powder metallurgy is carried out the high temperature die cast.The compression molding process of cam is generally comparatively complicated; Usually at first need raw material (being generally zinc, tin, lead, copper, magnesium, aluminum) at high temperature be melted; Then inject the die casting moulding, need could accomplish a finished product through series of processes such as pressurize, cooling and polishings then.Therefore; Adopt the cam of die cast manufacturing approach generally can have following defective: (1) diecasting alloys are restricted; The cost of raw material is higher: present diecasting alloys have only six kinds in zinc, tin, lead, copper, magnesium, aluminium etc.; In general adopt the cost price of these six kinds of alloys higher, consider from economic factor, the cost of material of cam die cast is than higher; (2) cost of equipment is expensive: it is all quite expensive that required expenses such as equipment such as die casting machine, melting furnace, holding furnace and compression mod are produced in die casting; (3) poor air-tightness of cam foundry goods: because liquation is when being fills up in the die casting die cavity at a high speed; Can produce the phenomenon of sinuous flow, the part forms pore or shrinkage hole, influences the anti-air-tightness of cam foundry goods; See also shown in Figure 6 simultaneously; Loose because of the cam castings material, poor mechanical properties can have influence on useful life of the electric connector that uses this cam; (4) technological process of cam die cast is comparatively complicated.
In view of above-mentioned condition, necessary a kind of improved manufacturing approach that is used for cam of electric connector is provided, to solve the defective that exists in the prior art scheme.
[summary of the invention]
The technical problem that the present invention solved provides a kind of manufacturing approach that is used for cam of electric connector; Adopt this method can simplify the manufacturing process flow of cam; Reduce production costs, can improve the mechanical property of cam simultaneously, the useful life that prolongs cam and use this cam electric connector.
For solving above technical problem; The present invention provides a kind of manufacturing approach that is used for cam of electric connector; It is characterized in that: utilize diel that sheet metal is carried out forging forming; It comprises following two steps: (a) get the raw materials ready: sheet metal is processed into the strip of certain width and thickness, and strip one end is positioned in the preset die; (b) be processed as finished product: in-cycle work, shut die is transferred machine, utilizes mould that sheet metal is pushed the cam finished product that cold-forge forming goes out can be mass-produced.
The technology relevant with the present invention compares, and the present invention has the following advantages: the cam that is used for electric connector adopts the forging forming technology to process, and has simplified the procedure of making moulding, has reduced processing cost; The cam microstructure of metals of forging forming is fibrous in addition, makes that the intensity of cam is better, and the cam of forging forming is surperficial Paint Gloss simultaneously, and mechanical performance has also prolonged the life-span of using this cam electric connector more.
[description of drawings]
Fig. 1 is the vertical view of being processed into through the inventive method that is used for cam of electric connector.
Fig. 2 is the front view of being processed into through the inventive method that is used for cam of electric connector.
Fig. 3 is to use the three-dimensional exploded view of the electric connector of the cam of being processed into through the inventive method.
Fig. 4 is to use the three-dimensional combination figure of the electric connector of the cam of being processed into through the inventive method.
Fig. 5 is to use the cross-section structure characteristic pattern of the cam that is used for electric connector of the inventive method forging forming.
Fig. 6 is the cross-section structure characteristic pattern that the cam that be used for electric connector relevant with the present invention passes through die cast.
[embodiment]
Be used for the manufacturing approach of electric connector 1 cam 4 and adopt cam 4 that this method processes and the electric connector 1 that uses this cam 4 to be described further this below in conjunction with accompanying drawing and specific embodiment.
A kind of manufacturing approach that is used for electric connector 1 cam 4 that the present invention discloses; It is according to the metal plastic deformation principle, utilizes and is contained in the diel on the forcing press, under sizable extrusion pressure effect, moves with certain speed; Make metal material belt in mold cavity, produce plastic deformation; Promptly through the die up and down of mould the sheet metal subtend is exerted pressure, carry out forging forming, it roughly comprises following two steps:
(a) get the raw materials ready: generally be the sheet metal of selecting for use hardness moderate; Like aluminium; Copper material, the strip of certain width and thickness is processed into these sheet metals by mild steel etc., present embodiment; Usually the size of strip thickness is slightly larger than the height of finished product cam 4, and will be positioned in the preset die by finish mix band one end that needs of machining cam 4 sizes;
(b) be processed as finished product: in-cycle work; Shut die is transferred machine; According to the forging and pressing cycle of cam 4, set the transfer rate of metal material belt, along with strip gets into mold cavity; Utilize the die up and down of mould that the sheet metal subtend is exerted pressure, go out cam 4 finished products that to produce in enormous quantities when mould can push cold-forge forming with sheet metal when matched moulds makes material flow to the counterdie die cavity up and down.
The cam 4 that the method for use forging forming of the present invention is processed into; The cam 5 that adopts die casting moulding to be processed in the conventional art has the following advantages: at first the institutional framework of cam 4 metal materials of forging forming is fine and close more, sees also shown in Figure 5; Cam 4 microstructure of metals of forging forming are fibrous; Cam semi-finals degree is better, and cam 4 smooth surfaces, and frictional force reduces to make that operation is more easy during driving cam 4 motions; In addition, forging forming makes the procedure of cam 4 greatly simplify compared to die cast, and raw material also can adopt the relatively low sheet metals such as mild steel of price, has reduced the processing and manufacturing cost of cam 4.
See also Fig. 1 to shown in Figure 4; The electric connector 1 of the cam 4 that use is processed into through method of the present invention; In order to electrically connect wafer module (not shown) to printed circuit board (PCB) (not shown); It comprises matrix 3, be located in plurality of conductive terminals (not shown) in the matrix, be installed on the lid 2 of body upper surface, and drives the cam 4 that lid 2 slides with respect to matrix 3.
Matrix 3 is provided with plurality of terminals accepting groove (not shown), and plurality of conductive terminals (not shown) is located in the terminal containing slot, with the stitch (not shown) of wafer module thus be connected and realize the electric connection of wafer module and electric connector 1.One side of matrix 3 is extended with resettlement section 30, and this resettlement section 30 is provided with a groove 31 that roughly is " H " shape, runs through this groove 31 and is provided with roughly rounded seat hole 32, in order to accommodate cam 4.
Lid 2 is used for the bearing wafer module, movably is mounted on the matrix 3, and it is provided with roughly rectangular tabular and is used to admit the supporting part 20 of wafer module stitch (not shown) and the head 21 that extends from supporting part 20 1 ends.Supporting part 20 is being provided with through hole (not shown) with the corresponding position of the terminal containing slot of matrix 3, is used to accommodate the conductive base pin (not shown) of chip module.The height of head 21 is greater than the height of supporting part 20.The head 21 of lid 2 is provided with and cover hole 22 in the seat 32 corresponding positions, hole with matrix 3 resettlement sections 30, and this covers hole 22 by different round-formed of two diameters.When lid 2 is installed in 3 last times of matrix, seat hole 32 connects with lid hole 22, and driving cam 4 runs through these two holes and is contained in wherein.
Cam 4 is a stepped cylinder, and it can be divided into according to the radius difference and drives section 41 and start section 42, and drives section 41 and do not have same axis with start section 42, is an eccentric structure.Drive section 41 and be housed in the lid hole 22 of lid 2, start section 42 is housed in the seat hole 32 of matrix 3.Offer a rectangle operating groove 412 on the end face 411 at the top 410 of driving section 41, stretch into for external tool (like bottle opener) and wherein operate rotating cam 4, and one protrudes out a block stop part 413 on all side wall surfaces at top 410.
When lid 2 and matrix 3 fit together, can drive lid 2 by the rotation of driving cam 4 and slide with respect to matrix 3, reach being electrically conducted of conducting terminal and wafer module, thus the electric connection between realization wafer module and the circuit board.
Use to adopt the electric connector 1 of the cam 4 of the inventive method moulding, because cam 4 is through behind the forging forming, the institutional framework of the metal material of cam 4 is fine and close more; Cam semi-finals degree is better; And cam 4 smooth surfaces, frictional force reduces during driving cam 4 motions, makes that operation is more easy; Thereby also protected electric connector 1, prolonged the useful life of electric connector 1; In addition, forging forming makes the procedure of cam 4 greatly simplify compared to die cast, and raw material also can adopt the relatively low sheet metals such as mild steel of price, has reduced the processing and manufacturing cost of cam 4, thereby has also reduced the production cost of electric connector 1.
Need to prove that the above embodiment is merely the preferred embodiment of the utility model, other any improvement conversion of on this embodiment basis, carrying out also should not break away from the technical scheme of the utility model.The variation of any equivalence that those of ordinary skills take the technical scheme of the utility model through reading the utility model specification is the utility model claim and contains.
Claims (2)
1. manufacturing approach that is used for cam of electric connector; Wherein electric connector comprises matrix, is installed on the lid of body upper surface; And drive lid with respect to the cam that matrix slides, it is characterized in that: utilize diel that sheet metal is carried out forging forming, and comprise following two steps:
(a) get the raw materials ready: sheet metal is processed into the strip of tool certain width and thickness, and the size of strip thickness is greater than the height of finished product cam, and strip one end is positioned in the preset die;
(b) be processed as finished product: in-cycle work, shut die is transferred machine, utilizes mould that the sheet metal subtend is exerted pressure, and sheet metal is pushed the cam finished product that cold-forge forming goes out can be mass-produced.
2. the manufacturing approach that is used for cam of electric connector as claimed in claim 1 is characterized in that: said sheet metal is a carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100260441A CN101369707B (en) | 2007-08-15 | 2007-08-15 | Production method used for cam of electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100260441A CN101369707B (en) | 2007-08-15 | 2007-08-15 | Production method used for cam of electric connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101369707A CN101369707A (en) | 2009-02-18 |
| CN101369707B true CN101369707B (en) | 2012-10-31 |
Family
ID=40413396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100260441A Expired - Fee Related CN101369707B (en) | 2007-08-15 | 2007-08-15 | Production method used for cam of electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101369707B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5864093A (en) * | 1996-05-31 | 1999-01-26 | E & J Demark, Inc. | Electrical ground connector assembly |
| US6254415B1 (en) * | 1998-12-05 | 2001-07-03 | Molex Incorporated | Zero insertion force electrical connector |
| US6280224B1 (en) * | 2000-01-05 | 2001-08-28 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having a metallic inserted plate |
| US6296507B1 (en) * | 2000-01-28 | 2001-10-02 | Hon Hai Precision Ind. Co., Ltd. | Electrical socket |
| US6338640B1 (en) * | 2001-09-12 | 2002-01-15 | Hon Hai Precision Ind. Co., Ltd. | ZIF mobile socket |
| CN1133250C (en) * | 1999-10-05 | 2003-12-31 | Smk株式会社 | Terminal connector and method of manufacturing the same |
-
2007
- 2007-08-15 CN CN2007100260441A patent/CN101369707B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5864093A (en) * | 1996-05-31 | 1999-01-26 | E & J Demark, Inc. | Electrical ground connector assembly |
| US6254415B1 (en) * | 1998-12-05 | 2001-07-03 | Molex Incorporated | Zero insertion force electrical connector |
| CN1133250C (en) * | 1999-10-05 | 2003-12-31 | Smk株式会社 | Terminal connector and method of manufacturing the same |
| US6280224B1 (en) * | 2000-01-05 | 2001-08-28 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having a metallic inserted plate |
| US6296507B1 (en) * | 2000-01-28 | 2001-10-02 | Hon Hai Precision Ind. Co., Ltd. | Electrical socket |
| US6338640B1 (en) * | 2001-09-12 | 2002-01-15 | Hon Hai Precision Ind. Co., Ltd. | ZIF mobile socket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101369707A (en) | 2009-02-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130815 |