CN104466605A - Technology for manufacturing wiring terminal of new energy automobile electronic control system - Google Patents

Technology for manufacturing wiring terminal of new energy automobile electronic control system Download PDF

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Publication number
CN104466605A
CN104466605A CN201410728889.5A CN201410728889A CN104466605A CN 104466605 A CN104466605 A CN 104466605A CN 201410728889 A CN201410728889 A CN 201410728889A CN 104466605 A CN104466605 A CN 104466605A
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column
shell
blank
great circle
electrosilvering
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CN201410728889.5A
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CN104466605B (en
Inventor
张太良
万永福
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Jiangsu Winner Machinery Co Ltd
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Jiangsu Winner Machinery Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Forging (AREA)

Abstract

The invention discloses a technology for manufacturing a wiring terminal of a new energy automobile electronic control system. The technology includes the following steps of blanking, annealing, peeling, surface oxidation, surface lubricating treatment, forward extrusion, reverse extrusion, machining, electrosilvering and passivation. The wiring terminal produced through the technology is stable in quality and small in errors after being formed. The rate of finished products is high, the production efficiency is improved, the production cycle is short, the machining method that machine tool machining is greatly used after hot forging is replaced, the machine tool machining operational quantity is reduced, a large quantity of copper resources are saved, the precision requirement can be met, the manufacturing cost is lowered, and the manufacturing period is shortened.

Description

New-energy automobile electric-control system terminals manufacturing process
Technical field
The invention belongs to metalwork forging forming technical field, particularly relate to a kind of new-energy automobile electric-control system terminals manufacturing process.
Background technology
New-energy automobile electric-control system terminals are parts important in new-energy automobile electric-control system, mainly play the effect of wiring, by terminals wiring, and the neat easily debugging attractive in appearance of line sequence.The manufacture of terminals often adopts direct Vehicle Processing bar at present, then boring, Milling Process inner chamber and end face, and this kind of method efficiency is low, and waste of raw materials is serious, and production cost is high, particularly because raw material metal streamline is cut-off, comprehensive mechanical performance is reduced.
The present invention is directed to the drawback of existing machine work new-energy automobile electric-control system terminals, mainly solve existing conventional machining process, machine tool input is more, production efficiency is low, manufacturing cost is high, be difficult to the shortcoming forming batch production, a kind of new-energy automobile electric-control system terminals manufacturing process is provided, and the effect that interiors of products tissue density is high, conduct electricity very well, economize in raw materials can be reached.
The present invention is achieved by the following technical solution:
A kind of new-energy automobile electric-control system terminals manufacturing process, comprises the following steps:
1. blanking: intercept copper bar material;
2. anneal: be heated to 680 ~ 720 DEG C, be incubated 2 hours, stove is as cold as 350 DEG C, blow-on door, continues to be as cold as 120 DEG C, hangs out charging basket air cooling to room temperature;
3. base: by instrument lathe turning, end face, chamfering;
4. surface oxidation: persulfate soaks oxidation processes, and persulfate solution formula is: NaOH (NaOH) 45 ~ 55 g/L, potassium peroxydisulfate (K 2s 2o 8) 5 ~ 15 g/L; Solution temperature controls at 60 ~ 65 DEG C, soak time 10 ~ 15 minutes;
5. surface lubrication process: the blank after oxidation, after drying or drying, carries out grease lubrication process;
6. just crowded: blank is put into die, the shaping great circle shell of column of cold forging forward extrusion and roundlet shell of column under normal temperature condition;
7. instead to squeeze: blank is put into die, cold forging anti-extrusion great circle shell of column inner chamber Large central aperture and the connecting hole that is attached thereto under normal temperature condition;
8. machine work: the thin mouth end of Vehicle Processing great circle shell of column outer wall, groove and the little centre bore of roundlet shell of column inner chamber;
9. electrosilvering: by the workpiece electrosilvering process after machine work, silver plating thicknesses is 6 ~ 7 μm;
10. passivation: electrosilvering part is immersed in passivation in chromatedsolution, chromatedsolution formula is: potassium bichromate (K 2cr 2o 7) 10 ~ 15 g/L, nitric acid HNO 3(d=1.42g/cm 3) 10 ~ 15 g/L; Solution temperature is 10 ~ 30 DEG C, soak time 10 ~ 30 seconds.Passivation object improves the resistance to corrosion of silver layer, and make Deposit appearance and the performance such as conduction, welding unaffected.
A kind of new-energy automobile electric-control system terminals manufacturing process, comprises the following steps:
1. blanking: intercept copper bar material;
2. anneal: be heated to 680 ~ 720 DEG C, be incubated 2 hours, stove is as cold as 350 DEG C, blow-on door, continues to be as cold as 120 DEG C, hangs out charging basket air cooling to room temperature;
3. base: by instrument lathe turning, end face, chamfering;
4. surface oxidation: persulfate soaks oxidation processes, and persulfate solution formula is: NaOH (NaOH) 45 ~ 55 g/L, potassium peroxydisulfate (K 2s 2o 8) 5 ~ 15 g/L; Solution temperature controls at 60 ~ 65 DEG C, soak time 10 ~ 15 minutes;
5. surface lubrication process: the blank after oxidation, after drying or drying, carries out grease lubrication process;
6. just crowded: blank is put into die, the shaping great circle shell of column of cold forging forward extrusion and roundlet shell of column under normal temperature condition;
7. Bidirectional-squeezing: cold forging bidirectional extrusion forming great circle shell of column inner chamber Large central aperture and the little centre bore of roundlet shell of column inner chamber under normal temperature condition;
8. machine work: the thin mouth end of Vehicle Processing great circle shell of column outer wall, groove and the connecting hole between great circle shell of column and roundlet shell of column;
9. electrosilvering: by the workpiece electrosilvering process after machine work, silver plating thicknesses is 6 ~ 7 μm;
10. passivation: electrosilvering part is immersed in passivation in chromatedsolution, chromatedsolution formula is: potassium bichromate (K 2cr 2o 7) 10 ~ 15 g/L, nitric acid HNO 3(d=1.42g/cm 3) 10 ~ 15 g/L; Solution temperature is 10 ~ 30 DEG C, soak time 10 ~ 30 seconds.
After described machining steps completes, little centre bore is communicated by connecting hole with Large central aperture.
Beneficial effect of the present invention:
Finish forge cold-finish forming technique is applied to the manufacture of new-energy automobile electric-control system terminals by the present invention, reduce follow-up cut, save a large amount of copper resources and processing technology is simple, the metal streamline of material is complete, constant product quality, interior tissue density is high, comprehensive mechanical performance good, conduct electricity very well, production efficiency is high, can meet required precision, again reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the profile of Fig. 1;
Fig. 3 is the process chart of the embodiment of the present invention
Fig. 4 is blank deformation flow chart in the invention process new-energy automobile electric-control system terminals manufacturing process.
Sequence number in figure: 1, Large central aperture, 2, thin mouth end, 3, groove, 4, great circle shell of column, 5, connecting hole, 6, roundlet shell of column, 7, little centre bore.
Embodiment
Below by embodiment, and composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 are described in further detail technical scheme of the present invention.
Shown in Fig. 1 and Fig. 2, a kind of new-energy automobile electric-control system terminals, comprise external diameter two sections of hollow circuit cylinders not of uniform size and great circle shell of column 4 and roundlet shell of column 6, great circle shell of column 4 inner chamber is provided with Large central aperture 1, roundlet shell of column 6 inner chamber is provided with little centre bore 7, the external diameter of great circle shell of column 4 is 19.9mm, internal diameter is 12mm, and the external diameter of roundlet shell of column 6 is 13.7mm, internal diameter is 10.5mm, and Large central aperture 1 is communicated by connecting hole 5 with little centre bore 7; The port of great circle shell of column 4 is thin mouth end 2, and the outer wall of great circle shell of column 4 is also provided with groove 3, and groove 3 is arranged on below thin mouth end 2, and the surfaces externally and internally of described terminals is provided with silver coating, and silver coating thickness is 6 ~ 7 μm.
Embodiment one: shown in Fig. 3 and Fig. 4, a kind of new-energy automobile electric-control system terminals manufacturing process, comprises the steps: 1. blanking: intercept metallic copper bar; 2. anneal: be heated to 700 ± 5 DEG C, be incubated 2 hours, stove is as cold as 350 DEG C, blow-on door, continues to be as cold as 120 DEG C, hangs out charging basket air cooling to room temperature; 3. base: by instrument lathe turning, end face, chamfering; 4. surface oxidation: persulfate soaks oxidation processes, and persulfate solution formula is: NaOH (NaOH) 45 ~ 55 g/L, potassium peroxydisulfate (K 2s 2o 8) 5 ~ 15 g/L; Solution temperature controls at 60 ~ 65 DEG C, soak time 10 ~ 15 minutes; 5. surface lubrication process: the blank after oxidation, after drying or drying, puts into cylinder, adds zinc stearate powder and grease, roller coating 20 minutes; Described zinc stearate powder and extrude copper blank volume ratio be 10:3, the weight ratio of zinc stearate powder and grease is 200:3-200:5; 6. just crowded: blank is put into die, the shaping great circle shell of column 4 of cold forging forward extrusion and roundlet shell of column 6 under normal temperature condition; 7. instead to squeeze: blank is put into die, cold forging anti-extrusion great circle shell of column 4 inner chamber Large central aperture 1 and the connecting hole 5 that is attached thereto under normal temperature condition; 8. machine work: the thin mouth end 2 of Vehicle Processing great circle shell of column 4 outer wall, groove 3 and the little centre bore 7 of roundlet shell of column 6 inner chamber, little centre bore 7 is communicated by connecting hole 5 with Large central aperture 1; 9. electrosilvering: by the workpiece electrosilvering process after machine work, silver plating thicknesses is 6 ~ 7 μm; 10. passivation: electrosilvering part is immersed in passivation in chromatedsolution, chromatedsolution formula is: potassium bichromate (K 2cr 2o 7) 10 ~ 15 g/L, nitric acid HNO 3(d=1.42g/cm 3) 10 ~ 15 g/L; Solution temperature is 10 ~ 30 DEG C, soak time 10 ~ 20 seconds, and passivation object improves the resistance to corrosion of silver layer, and make Deposit appearance and the performance such as conduction, welding unaffected.
Shown in embodiment two: Fig. 4, a kind of new-energy automobile electric-control system terminals manufacturing process, comprises the following steps: 1. blanking: intercept copper bar material; 2. anneal: be heated to 685 ± 5 DEG C, be incubated 2 hours, stove is as cold as 350 DEG C, blow-on door, continues to be as cold as 120 DEG C, hangs out charging basket air cooling to room temperature; 3. base: by instrument lathe turning, end face, chamfering; 4. surface oxidation: persulfate soaks oxidation processes, and persulfate solution formula is: NaOH (NaOH) 45 ~ 55 g/L, potassium peroxydisulfate (K 2s 2o 8) 5 ~ 15 g/L; Solution temperature controls at 60 ~ 65 DEG C, soak time 10 ~ 15 minutes; 5. surface lubrication process: the blank after oxidation, after drying or drying, puts into cylinder, add lubricant grease, roller coating 20 minutes, lubricant grease formula is: lard is heated to 200 DEG C, adds pure machine oil after 2 ~ 10 minutes, both stir 2 ~ 5 minutes, until evenly, finally add tetradecyl alchohol, wherein proportions is lard 13%, tetradecyl alchohol 3%, pure machine oil 84%.6. just crowded: blank is put into die, the shaping great circle shell of column 4 of cold forging forward extrusion and roundlet shell of column 6 under normal temperature condition; 7. Bidirectional-squeezing: cold forging bidirectional extrusion forming great circle shell of column 4 inner chamber Large central aperture 1 and the little centre bore 7 of roundlet shell of column 6 inner chamber under normal temperature condition; 8. machine work: the thin mouth end 2 of Vehicle Processing great circle shell of column 4 outer wall, groove 3 and the connecting hole between great circle shell of column 4 and roundlet shell of column 65; 9. electrosilvering: by the workpiece electrosilvering process after machine work, silver plating thicknesses is 6 ~ 7 μm; 10. passivation: electrosilvering part is immersed in passivation in chromatedsolution, chromatedsolution formula is: potassium bichromate (K 2cr 2o 7) 10 ~ 15 g/L, nitric acid HNO 3(d=1.42g/cm 3) 10 ~ 15 g/L; Solution temperature is 10 ~ 30 DEG C, soak time 10 ~ 30 seconds.
The present invention is by carrying out cold-extruded precision forging to raw bar material, first make the general blank of terminals, be finished product new-energy automobile electric-control system terminals by machine tooling again, processing method is simple, both meet the required precision of new-energy automobile electric-control system terminals, again reduce manufacturing cost and production cycle.
Embodiment is just for the ease of understanding technical scheme of the present invention; do not form limiting the scope of the invention; every do not depart from technical solution of the present invention interior perhaps above scheme is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong within scope.

Claims (4)

1. new-energy automobile electric-control system terminals manufacturing process, comprises the following steps:
1. blanking: intercept copper bar material;
2. anneal: be heated to 680 ~ 720 DEG C, be incubated 2 hours, stove is as cold as 350 DEG C, blow-on door, continues to be as cold as 120 DEG C, hangs out charging basket air cooling to room temperature;
3. base: by instrument lathe turning, end face, chamfering;
4. surface oxidation: persulfate soaks oxidation processes, and persulfate solution formula is: NaOH (NaOH) 45 ~ 55 g/L, potassium peroxydisulfate (K 2s 2o 8) 5 ~ 15 g/L; Solution temperature controls at 60 ~ 65 DEG C, soak time 10 ~ 15 minutes;
5. surface lubrication process: the blank after oxidation, after drying or drying, carries out grease lubrication process;
6. just crowded: blank is put into die, under normal temperature condition the shaping great circle shell of column of cold forging forward extrusion (4) with roundlet shell of column (6);
7. instead to squeeze: blank is put into die, under normal temperature condition cold forging anti-extrusion great circle shell of column (4) inner chamber Large central aperture (1) and the connecting hole be attached thereto (5);
8. machine work: Vehicle Processing great circle shell of column (4) outer wall thin mouth end (2), (3) (6) the little centre bore of inner chamber is (7) with roundlet shell of column for groove;
9. electrosilvering: by the workpiece electrosilvering process after machine work, silver plating thicknesses is 6 ~ 7 μm;
10. passivation: electrosilvering part is immersed in passivation in chromatedsolution, chromatedsolution formula is: potassium bichromate (K 2cr 2o 7) 10 ~ 15 g/L, nitric acid HNO 3(d=1.42g/cm 3) 10 ~ 15 g/L; Solution temperature is 10 ~ 30 DEG C, soak time 10 ~ 30 seconds.
2. new-energy automobile electric-control system terminals manufacturing process, comprises the following steps:
1. blanking: intercept copper bar material;
2. anneal: be heated to 680 ~ 720 DEG C, be incubated 2 hours, stove is as cold as 350 DEG C, blow-on door, continues to be as cold as 120 DEG C, hangs out charging basket air cooling to room temperature;
3. base: by instrument lathe turning, end face, chamfering;
4. surface oxidation: persulfate soaks oxidation processes, and persulfate solution formula is: NaOH (NaOH) 45 ~ 55 g/L, potassium peroxydisulfate (K 2s 2o 8) 5 ~ 15 g/L; Solution temperature controls at 60 ~ 65 DEG C, soak time 10 ~ 15 minutes;
5. surface lubrication process: the blank after oxidation, after drying or drying, carries out grease lubrication process;
6. just crowded: blank is put into die, under normal temperature condition the shaping great circle shell of column of cold forging forward extrusion (4) with roundlet shell of column (6);
7. Bidirectional-squeezing: under normal temperature condition cold forging bidirectional extrusion forming great circle shell of column (4) inner chamber Large central aperture (1) (6) the little centre bore of inner chamber is (7) with roundlet shell of column;
8. machine work: Vehicle Processing great circle shell of column (4) outer wall thin mouth end (2), groove (3) and great circle shell of column (4) and roundlet shell of column (6) between connecting hole (5);
9. electrosilvering: by the workpiece electrosilvering process after machine work, silver plating thicknesses is 6 ~ 7 μm;
10. passivation: electrosilvering part is immersed in passivation in chromatedsolution, chromatedsolution formula is: potassium bichromate (K 2cr 2o 7) 10 ~ 15 g/L, nitric acid HNO 3(d=1.42g/cm 3) 10 ~ 15 g/L; Solution temperature is 10 ~ 30 DEG C, soak time 10 ~ 30 seconds.
3. new-energy automobile electric-control system terminals manufacturing process according to claim 1 and 2, it is characterized in that: after described machining steps completes, (5) (1) (7) little centre bore communicated by connecting hole with Large central aperture.
4. new-energy automobile electric-control system terminals manufacturing process according to claim 1 and 2, it is characterized in that: described surface lubrication treatment step: the blank after oxidation, after drying or drying, put into cylinder, add zinc stearate powder and grease, roller coating 20 minutes; Described zinc stearate powder and extrude copper blank volume ratio be 10:3, the weight ratio of zinc stearate powder and grease is 200:3-200:5.
CN201410728889.5A 2014-12-05 2014-12-05 New-energy automobile electric-control system terminals manufacturing process Active CN104466605B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882767A (en) * 2015-05-30 2015-09-02 苏州云龙精密成形有限公司 Cold extruding process of high-speed rail electrical connector pin
CN105048245A (en) * 2015-05-30 2015-11-11 苏州云龙精密成形有限公司 Processing technology of high-speed rail electrical connector

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JPS5248090A (en) * 1975-10-14 1977-04-16 Furukawa Electric Co Ltd:The Method of manufacturing a connector
CN101020200A (en) * 2006-02-14 2007-08-22 江苏森威集团有限责任公司 Precision forging process for radial and reverse combined extrusion
CN101422861A (en) * 2008-11-27 2009-05-06 江苏森威精锻有限公司 Precision forming method for special-shaped deep hole parts
CN201584515U (en) * 2009-12-08 2010-09-15 上海金亭汽车线束有限公司 Connecting terminal applicable to connection of auto cables with different diameters
CN102019335A (en) * 2010-11-04 2011-04-20 上海交通大学 Cold forging processing method of hardened and tempered structural steel
CN102350615A (en) * 2011-08-19 2012-02-15 江苏森威精锻有限公司 Shunt blocking forming method for star-shaped sleeve
CN102689132A (en) * 2012-06-11 2012-09-26 江苏森威精锻有限公司 Method for improving jumping of rod part of inner spline shaft type forged piece
CN103381467A (en) * 2013-07-11 2013-11-06 江苏森威精锻有限公司 Opening and closing mold forming method for step type forge pieces
CN103624205A (en) * 2013-12-04 2014-03-12 江苏威鹰机械有限公司 Cold-forging plastic molding technology of precisely-forged brake threaded pipe component
CN103858279A (en) * 2011-10-12 2014-06-11 菲尼克斯电气公司 Method for producing a screw connection terminal

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5248090A (en) * 1975-10-14 1977-04-16 Furukawa Electric Co Ltd:The Method of manufacturing a connector
CN101020200A (en) * 2006-02-14 2007-08-22 江苏森威集团有限责任公司 Precision forging process for radial and reverse combined extrusion
CN101422861A (en) * 2008-11-27 2009-05-06 江苏森威精锻有限公司 Precision forming method for special-shaped deep hole parts
CN201584515U (en) * 2009-12-08 2010-09-15 上海金亭汽车线束有限公司 Connecting terminal applicable to connection of auto cables with different diameters
CN102019335A (en) * 2010-11-04 2011-04-20 上海交通大学 Cold forging processing method of hardened and tempered structural steel
CN102350615A (en) * 2011-08-19 2012-02-15 江苏森威精锻有限公司 Shunt blocking forming method for star-shaped sleeve
CN103858279A (en) * 2011-10-12 2014-06-11 菲尼克斯电气公司 Method for producing a screw connection terminal
CN102689132A (en) * 2012-06-11 2012-09-26 江苏森威精锻有限公司 Method for improving jumping of rod part of inner spline shaft type forged piece
CN103381467A (en) * 2013-07-11 2013-11-06 江苏森威精锻有限公司 Opening and closing mold forming method for step type forge pieces
CN103624205A (en) * 2013-12-04 2014-03-12 江苏威鹰机械有限公司 Cold-forging plastic molding technology of precisely-forged brake threaded pipe component

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882767A (en) * 2015-05-30 2015-09-02 苏州云龙精密成形有限公司 Cold extruding process of high-speed rail electrical connector pin
CN105048245A (en) * 2015-05-30 2015-11-11 苏州云龙精密成形有限公司 Processing technology of high-speed rail electrical connector
CN104882767B (en) * 2015-05-30 2017-04-12 苏州云龙精密成形有限公司 Cold extruding process of high-speed rail electrical connector pin
CN105048245B (en) * 2015-05-30 2018-02-23 苏州云龙精密成形有限公司 A kind of processing technology of high ferro electrical cnnector

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