CN106532311B - Cylindrical pin and its plug - Google Patents
Cylindrical pin and its plug Download PDFInfo
- Publication number
- CN106532311B CN106532311B CN201611196243.2A CN201611196243A CN106532311B CN 106532311 B CN106532311 B CN 106532311B CN 201611196243 A CN201611196243 A CN 201611196243A CN 106532311 B CN106532311 B CN 106532311B
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- Prior art keywords
- pin
- endpiece
- ontology
- stage casing
- cylindrical pin
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- 238000000137 annealing Methods 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 22
- 238000009413 insulation Methods 0.000 abstract description 10
- 238000001746 injection moulding Methods 0.000 abstract description 6
- 238000012669 compression test Methods 0.000 abstract description 4
- 239000011265 semifinished product Substances 0.000 description 25
- 238000004080 punching Methods 0.000 description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Cylindrical pin disclosed in this invention and its plug, wherein, cylindrical pin includes the conductive segment set on pin ontology one end, the pin ontology is equipped with demarcations in order to separating between the stage casing and endpiece of pin ontology, the stage casing of pin ontology constitutes encapsulated portion of insulating, and endpiece constitutes wire connecting portion；And the hardness in the stage casing of pin ontology is more than the hardness of the endpiece of pin ontology.The present invention is convenient for subsequently encapsulated to the injection molding in encapsulated portion of insulating；And the hardness in the encapsulated portion of insulation of the cylindrical pin is high, corresponding bend resistance degree is good, can meet the requirement of corresponding compression test and roller fall-down test.
Description
Technical field
The invention belongs to plug pin technical fields, and in particular to a kind of cylindrical pin and its plug.
Background technology
Our times various countries are just generally using the cylindrical pin of a kind of local dielectric, are wrapped up on such plug base pin
Insulator largely reduces electric shock risk, therefore by wide popularization and application.Such plug base pin generally use solid core
Processing method made of pole vehicle system, waste of material rate is high, and low production efficiency is of high cost, while lead content is exceeded, is not achieved
European Union environmental protection requirement；In addition also there is the making side of the cylinder type contact pin for electrical connection disclosed in the patent application of China's Mainland
Method is that hollow seamless cylinder is made using continuous punching stretch technology specifically wherein application No. is 2008100628509
Guan (this step is exactly that copper sheet is first made a copper pipe), squeezes undergauge annealing operation using high speed rotary grinding, bottle is made
Neck position (this step be exactly endpiece pass through rotate necking down, formed neck), bottleneck position because by above-mentioned annealing process (because
Neck is obtained by annealing, so hardness is relatively low), it causes metal hardness to reduce, causes mechanical strength that safety test is not achieved
It is required that.
It is appreciated that according to the effect at each position of cylindrical pin, cylindrical pin can be specifically divided into conduction
Section, the encapsulated portion of insulation and wire connecting portion, wherein conductive segment are to be conductively connected for jack tactile, and encapsulated portion of insulating is used as the circle
The insulator cladding of Cylindrical prongs, and wire connecting portion is for being electrically connected with external electric wire.Currently, existing circle
Cylindrical prongs, the hardness between encapsulated portion and wire connecting portion that insulate are consistent, and do not separate differentiation, partial test performance cannot expire
Foot requires.
Invention content
The purpose of the present invention is to provide it is a kind of for solve above-mentioned technical problem and propose separate, difference of hardness all more
Rationally, test performance more preferably cylindrical pin.
It is another object of the present invention to propose a kind of plug with the cylindrical pin.
A kind of cylindrical pin provided by the present invention, it includes the conductive segment set on pin ontology one end, and described inserts
Script body is equipped with demarcations in order to separating between the stage casing and endpiece of pin ontology, the stage casing of the pin ontology
Encapsulated portion of insulating is constituted, the endpiece constitutes wire connecting portion；And the hardness in the stage casing of the pin ontology is more than described insert
The hardness of the endpiece of script body.
Due to the application of above-mentioned technical proposal, the invention has the advantages that：
The cylindrical pin of the present invention, by the way that the pin ontology of the cylindrical pin is equipped with demarcations in order to slotting
Separating between the stage casing and endpiece of script body, and the hardness in the encapsulated portion of insulation of the stage casing composition of pin ontology is more than endpiece structure
At wire connecting portion hardness.It has been convenient for that the cylindrical pin is subsequently encapsulated to the injection molding in the encapsulated portion of insulating and electric power connection line is slotting
It is located in wire connecting portion.The hardness in the encapsulated portion of insulation of the cylindrical pin is higher, and corresponding bend resistance degree is good, can meet corresponding
Compression test and roller fall-down test requirement, and then meet countries in the world to the requirement of the standard of attaching plug holder.
And the hardness of wire connecting portion is relatively low, electric power connection line to plug effect more preferable.
In addition, cylindrical pin according to the above embodiment of the present invention can also have following additional technical characteristic：
The pin ontology is in hollow tubular structure.
Change to form apparent demarcations to carry out by step between the stage casing and endpiece of the pin ontology
It separates.
The outer diameter more than endpiece in the stage casing of the pin ontology.
Conductive segment, the stage casing of pin ontology and the outer diameter of endpiece is sequentially reduced.
The stage casing of the pin ontology is formed by squeezing undergauge mode, endpiece shape by way of reducing annealing
At.
Step lateral surface between the stage casing and endpiece of the pin ontology is in arc-shaped.
The opening of the endpiece is provided with outside flange.
The outer diameter less than endpiece in the stage casing of the pin ontology.
The plug of embodiment according to a further aspect of the invention, including the cylindrical pin described in any of the above-described embodiment.
The additional aspect and advantage of the present invention will be set forth in part in the description, or practice understanding through the invention
It arrives.
Description of the drawings
Fig. 1 is the structural schematic diagram of cylindrical pin provided by the present invention, wherein the wire connecting portion of the cylindrical pin
Outer diameter is less than the encapsulated portion's outer diameter that insulate.
Fig. 2 is the structural schematic diagram of cylindrical pin in the present invention, and the outer diameter of the wherein wire connecting portion of the cylindrical pin is big
In the encapsulated portion's outer diameter that insulate.
Fig. 3 is the mechanical structure schematic diagram that reducing annealing is corresponding in the present invention.
Fig. 4 is the process flow chart for being used to prepare cylindrical pin provided by the present invention.
Fig. 5 is the process flow chart for the cylindrical pin for being used to prepare the European two round plug standards of 2.5A.
Fig. 6 is that digital display pressure gauge uses the pressure test of R1 pressure heads to the test data of sample pin.
Fig. 7 is that digital display pressure gauge uses the pressure test of R2 pressure heads to the test data of sample pin.
Fig. 8 is that digital display pressure gauge uses the pressure test of R3 pressure heads to the test data of sample pin.
Fig. 9 is that digital display pressure gauge uses the pressure test of R4 pressure heads to the test data of sample pin.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It please refers to Fig.1, the cylindrical pin that Fig. 2 is provided, can be used for preparing attaching plug holder, belong in attaching plug
Basic device.In general, cylindrical pin be by conductive excellent copper at.
In one embodiment, a kind of cylindrical pin provided is please referred to Fig.1, it is wrapped set on 10 one end of pin ontology
Conductive segment 11, pin ontology 10 are equipped with demarcations in order to separating between the stage casing 12 and endpiece 13 of pin ontology, insert
The stage casing 12 of script body 10 constitutes encapsulated portion of insulating, and endpiece 13 constitutes wire connecting portion；And the hardness in the stage casing 12 of pin ontology 10 is big
In the hardness of the endpiece 13 of pin ontology 10.The other end of pin ontology 10 is equipped with the outer of the stage casing 12 of outer diameter and pin ontology 10
The endpiece 13 of step variation can be formed between diameter；The encapsulated portion of insulation that the stage casing 12 of pin ontology 10 is constituted is used to insert with power supply
Head bracket is connected and fixed, endpiece 13 constitute wire connecting portion with and attaching plug holder connect electric wire connection.Cylindrical pin
Pin ontology 10 is hollow tubular structure, at this point, the front end of its conductive segment 11 is spherical surface body, the as closing of hollow tubular structure
End, the electric wire of attaching plug holder connection are plugged in the wire connecting portion of the composition of endpiece 13.
In this embodiment, consider for ease of processing and from mechanical property, the outer diameter in the stage casing 12 of pin ontology 10
It is greater than the outer diameter of endpiece 13, overall preferably, the outer diameter of conductive segment 11, the stage casing 12 of pin ontology and endpiece 13
It is sequentially reduced.Preferably, the stage casing 12 of pin ontology 10 is formed by squeezing undergauge mode, and endpiece 13 is made annealing treatment by reducing
Mode is formed.And the outer diameter difference of the stage casing and endpiece of pin ontology between the two is greater than equal to 0.05 millimeter.
In another embodiment, a kind of cylindrical pin that Fig. 2 is provided is please referred to, it, which is wrapped, is set to 10 one end of pin ontology
Conductive segment 11, pin ontology 10 is equipped with demarcations in order to separating between the stage casing 12 and endpiece 13 of pin ontology,
The stage casing 12 of pin ontology 10 constitutes encapsulated portion of insulating, and endpiece 13 constitutes wire connecting portion；And the hardness in the stage casing 12 of pin ontology 10
More than the hardness of the endpiece 13 of pin ontology 10.The encapsulated portion of insulation that the stage casing 12 of pin ontology 10 is constituted is used for and attaching plug
Holder is connected and fixed, endpiece 13 constitute wire connecting portion with and attaching plug holder connect electric wire connection.Cylindrical pin is inserted
Script body 10 is hollow tubular structure, and the front end of conductive segment 11 is spherical surface body, the as blind end of hollow tubular structure, power supply
The electric wire of plug bracket connection is plugged in the wire connecting portion of the composition of endpiece 13.
In this embodiment, the outer diameter of endpiece 13 is greater than the outer diameter in the stage casing 12 of pin ontology 10, it is preferable that two
Outer diameter difference between person is greater than equal to 0.05 millimeter.Overall preferably, 11 outer diameter of conductive segment and endpiece 13 is outer
Diameter is all higher than the outer diameter in the stage casing 12 of pin ontology 10.
And in above-described embodiment or some other embodiments, plugged for ease of electric wire, referring to Fig. 1 and Fig. 2, the present embodiment institute
The opening of endpiece 13 in disclosed cylindrical pin is provided with outside flange 14.And flange 14 be specifically configured to it is horn-like
Structure, that is, the present embodiment is expanded the opening of endpiece 13, is in this way inserted into external cable by the structure setting of flange 14
Endpiece 13 simultaneously realizes being conductively connected between the cylindrical pin, also that is, being convenient for the preparation of attaching plug holder in this way.
And in above-described embodiment or some other embodiments, the other end of pin ontology 10 forms outer diameter by localized necking
Less than the endpiece 13 of 10 stage casing of pin ontology, 12 outer diameter.In the present embodiment, the stage casing 12 of the pin ontology 10 and endpiece 13
Between step lateral surface be in arc-shaped so that bonding strength between the stage casing 12 and endpiece 13 of the pin ontology 10 is high, no
Frangibility.
The plug of embodiment according to a further aspect of the invention includes the cylindrical pin of any of the above-described embodiment.
It can be seen that the claimed cylindrical pin of the present invention from above-described embodiment, by will be in pin ontology 10
The step formed between section 12 and endpiece 13 forms apparent demarcations separate the encapsulated portion of insulation and wire connecting portion, and
Insulate encapsulated portion hardness be more than wire connecting portion hardness, be convenient for the cylindrical pin when preparing plug-in power pack holder to pin
The injection molding in the stage casing 12 of ontology 10 is encapsulated；And be prepared attaching plug holder when, when conductive segment 11 is by external force collision,
Step between the stage casing 12 and endpiece 13 of its pin ontology 10 can play the role of positioning buffering, and then improve injection molding it is encapsulated with
Pulling-out force between cylindrical pin, it is therefore prevented that the encapsulated insulated plastic rupture on the stage casing of pin ontology 10 12 of injection molding.It should
The hardness in the encapsulated portion of insulation of cylindrical pin is higher, and corresponding bend resistance degree is good, can meet corresponding compression test and rolling
The requirement of cylinder fall-down test, and then meet standard requirement of the countries in the world to attaching plug holder.And the hardness of wire connecting portion compared with
It is low, electric power connection line to plug effect more preferable.
Fig. 3, Fig. 4 are please referred to, the preparation process of the cylindrical pin of some embodiments, specifically comprising following steps：
A, pin precast body is prepared：A kind of cylindrical pin precast body is provided, pin precast body is a hollow cylindrical, and
One end is closed, and definition is conductive segment 11 close to closed one section, and remainder is first Ministry of worker to be added；
B, undergauge is squeezed：First Ministry of worker's continuous several times to be added are squeezed into undergauge, form the stage casing 12 and the of pin ontology 10
Two Ministry of worker to be added, the stage casing 12 of pin ontology 10 is between conductive segment 11 and second Ministry of worker to be added；
C, reducing makes annealing treatment：Second Ministry of worker to be added is subjected to reducing annealing, obtains endpiece 13.
From the foregoing, it will be observed that the stage casing 12 of the pin ontology 10 in the claimed cylindrical pin of the present embodiment is specifically to squeeze
Compress diameter mode made of, specifically may be used press machine, it is cold make machine, injection molding machine, hydraulic press or test machine pair first waits for
Processing department continuous several times squeeze undergauge, this makes annealing treatment what mode was prepared compared to reason using reducing, maximum area
It is not to carry out squeezing what undergauge was formed on the basis of keeping first Ministry of worker's temperature to be added to be not enough to form reducing annealing.
The hardness that can obtain the stage casing 12 of the pin ontology 10 in the cylindrical pin in this way is higher, and 12 table of stage casing of pin ontology 10
Face and edge are more smooth；And the endpiece 13 in the cylindrical pin is specifically to be prepared in such a way that reducing makes annealing treatment
, hardness is smaller, and specifically, the hardness in the stage casing 12 of pin ontology 10 is more than the hardness of conductive segment 11 and endpiece 13.This
For sample in the attaching plug holder being prepared with the cylindrical pin of the present invention, the hardness in the stage casing 12 of pin ontology 10 is high,
With good bend resistance degree, the requirement of corresponding compression test and roller fall-down test can be met in this way, can specifically be born
The pressure of 60KG forcing presses, and the surface in the encapsulated portion of the insulation and edge are more smooth so that subsequently it is molded encapsulated obtained product
It is molded encapsulated saturation degree and makes, and then meets standard requirement of the countries in the world to attaching plug holder.
It is appreciated that according to the design feature of its required cylindrical pin to be prepared, which is hollow copper
Pipe, hollow cylindrical pin can be accordingly prepared i.e. by above step.
Wherein, the specific available copper band of the pin precast body of the present embodiment is prepared.Specifically, the first step, sorting：It chooses
Copper strips is placed on feed appliance；Second step, punching stretch：Selected copper strips is sent to mold and carried out continuous more by feed appliance
Secondary punching stretch, and obtain cylindrical pin precast body；Third walks, and endpiece is cut flat with：The cylindrical pin precast body that will be obtained
Endpiece cut flat with, and finally obtain the pin precast body for meeting length requirement.It is appreciated that being carried out continuously to copper strips
During punching stretch, requirement is had the dimensions per punching stretch together, meets size to be finally prepared
It is required that pin precast body.
In the present embodiment, reducing annealing is specifically to be realized by the way of friction and Extrusion, specifically, will
Conductive segment 11 is laterally disposed in automatic lathe collet 21, and is driven by automatic lathe collet 21 so that its high speed rotation, then
By draw pullover 22 that is being arranged with second Ministry of worker's concentric shafts to be added and can sliding laterally come the opening to second Ministry of worker to be added
Portion carries out friction and Extrusion.It is appreciated that draw pullover 22 is laterally retracted to second Ministry of worker to be added and is waited for high-speed rotating second
Processing department is in contact, and the contact surface of the two is because occurring relative motion due to frictional heating, and second Ministry of worker to be added is in draw pullover 22
Further retraction to squeeze second Ministry of worker to be added, and finally obtains outer diameter and is less than outside the stage casing 12 of pin ontology 10
The endpiece 13 of diameter.It should be noted that when the outer diameter for needing cylindrical pin to be prepared to require its endpiece 13 is more than pin ontology
When the outer diameter in 10 stage casing 12, contact pin can be used to replace draw pullover 22, and adopt in a like fashion, by contact pin extend transversely into
The opening portion of second Ministry of worker to be added is simultaneously in contact with high-speed rotating second Ministry of worker to be added to realize.It is appreciated that specifically into
During row reducing makes annealing treatment, draw pullover 22 is gone forward side by side relative to the transverse shifting of high-speed rotating second Ministry of worker to be added
Row friction and Extrusion back and forth several times, and can finally obtain the endpiece 13 met the size requirements.
Further, in order to obtain in the present embodiment cylindrical pin 14 structure of flange, process of the present invention in preparation
In, also include reaming flange the step for, specifically with thimble be inserted into endpiece 13 opening endoporus.Specifically, with it is above-mentioned
The mode of reducing annealing is similar, and conductive segment 11 is laterally disposed in automatic lathe collet 21, and by automatic lathe collet 21 into
Row drives so that its high speed rotation, is then inserted into using the thimble of cone and is driven by the clamping of automatic lathe collet 21 and high speed rotation
The opening endoporus of dynamic endpiece 13.It is appreciated that above-mentioned thimble continuously expands the opening of high-speed rotating endpiece 13
Hole flanging act on, can also several subjobs back and forth, to reach the flange 14 finally met the size requirements.
The preparation method of the cylindrical pin of the present invention, is prepared by way of squeezing undergauge in the cylindrical pin
Insulate encapsulated portion, this compared with prior art in reducing annealing mode, the hardness higher in encapsulated portion of insulating, in experiment
In the process, the pressure of 60KG forcing presses can be specifically born, and the surface in the encapsulated portion of the insulation and edge are more smooth so that follow-up note
It moulds obtained product its plastics saturation degree to make, and then meets standard requirement of the countries in the world to attaching plug holder.
Referring to Fig. 5, meeting the cylindrical pin of the European two round plug standards of 2.5A with regard to preparing below, specific description is done
It introduces：
The sorting of step A, in 40~46mm, thickness and places it in specific width of choosing in the copper strips of 0.4~0.6mm
On feed appliance.
The punching stretch of step B, be for carrying out continuous six punching stretch to the copper strips chosen via step A, and
Form pin semi-finished product A, it will be understood that its outer diameter is pin ontology 10 via the pin semi-finished product A of step B punching stretch formation
The outer diameter of middle conductive segment 11.Specifically：First is for copper strips to be first washed into a diameter of 16~24mm circular blank, so
Punching press is drawn into a diameter of 11~13mm, is highly the cylindrical workpiece of 6~8mm afterwards, and second is to be used for punching stretch Cheng Zhi
Diameter is 8~11mm, is highly the cylindrical workpiece of 10~12.5mm；Third road is punching stretch into a diameter of 6~8.5mm, height
Degree is the cylindrical workpiece of 14.5~16.0mm；4th be punching stretch at a diameter of 5~7mm, highly be 18~21mm
Cylindrical workpiece；5th is the cylindrical workpiece that punching stretch is 23~26mm at a diameter of 4~6mm, highly；6th is
The cylindrical workpiece that punching stretch is 35.0~36.0mm at a diameter of 3.94~4.06mm, highly, in this way six by way of step B
Road punching stretch has just obtained final pin semi-finished product A, a diameter of 3.94~4.06mm, has highly been 35.0~36.0mm.
Wherein, it is transmitted with manipulator between per pass punching stretch.
The endpiece of step C is cut flat with, and is particularly used for cutting flat with the endpiece of pin semi-finished product A, and obtain pin half at
Product B, specifically, a diameter of 3.94~4.06mm of finally obtained pin semi-finished product B, be highly 28.0~30.0mm cylinder
Shape copper pipe.
The extruding undergauge of step D is to carry out undergauge to one section of pin semi-finished product B adjacent openings, particular by continuous
The modes of three punching press undergauges realize and formed pin semi-finished product C.Specifically, it is for first for by pin semi-finished product B
Upper opening portion carry out undergauge, the position diameter of top 200mm length is narrowed down into 3.5mm, at the same time, pin semi-finished product
The overall length of B becomes 30.8mm；Second is for the upper opening portion of pin semi-finished product B to be carried out undergauge again, by top 21.5mm
The position diameter of length narrows down to 3.1mm, and at the same time, the overall length of pin semi-finished product B becomes 32.0mm；Third road is for inciting somebody to action
The upper opening portion of pin semi-finished product B carries out undergauge again, and the position diameter of top 22.5mm length is narrowed down to 2.73mm, same with this
When, the overall length of pin semi-finished product B becomes 33.0mm, and finally obtains pin semi-finished product C.
The reducing of step E makes annealing treatment：It is one section of progress reducing annealing to pin semi-finished product C adjacent openings, and
Obtain pin semi-finished product D.Specifically, pin semi-finished product C is laterally first folded in automatic lathe collet, and by automatic lathe collet
It is driven so that its high speed rotation, then passes through draw set that is being arranged with pin semi-finished product C concentric shafts and can sliding laterally
Head to carry out friction and Extrusion, specific continuous friction and Extrusion three times, to realize to pin half to the opening portion of pin semi-finished product C
The crowded compressed shape of the opening portions finished product C, wherein it is 6mm to squeeze depth, and the diameter of extruded parts is narrowed down to from 2.73mm
2.6mm, and form pin semi-finished product D；It is appreciated that after high-speed rotating pin half is contacted at C with draw pullover, connect
Contact portion can make its softening because of frictional heat, then can reach contracting shape most under the hard squeeze of draw pullover transverse shifting
Whole purpose, and obtain pin semi-finished product D.
The reaming flange of step F：It is the opening endoporus that pin semi-finished product D is inserted into thimble, with to tip cutting foot semi-finished product D's
Open end carries out reaming flange, and obtains final pin ontology 10.Specifically it is inserted by automatic using the thimble of cone
The opening endoporus of the pin semi-finished product D of lathe dog clamping and high speed rotation driving, it is specific continuously interact three times, have
Body can exit thimble again after its flange reach defined size, and the open end of pin semi-finished product D is made to reach reaming flange
Effect, finally obtained our required pin ontologies 10, that is, obtain cylindrical pin.
It is appreciated that preparation method more than prepares cylindrical pin, only need to adjust institute in each step
Corresponding site of action and the size quantity of required adjusting, you can the cylindrical pin of different size is prepared, to meet
Different use demands, just differ one has been illustrated herein.
Since the hardness test difficulty of hollow copper rod is larger, it is difficult to verify.So those skilled in the art is recommended to use " pressure instead
The hardness in stage casing (the encapsulated portion of insulating) and endpiece (wire connecting portion) of the method for power test " contrast verification pin.When test, use：
Pressure head (such as R1=of digital display pressure gauge (pressure that test pushes), displacement meter (shift value that record pushes) and different radii
1mm, R2=2mm, R3=3mm, R4=4mm) it is tested.The pin of different size when test, passes through different depression depths
And different pressure heads, test comparison pressure value.
If Fig. 6,7,8,9 are respectively to use R1, R2, R3, R4 pressure head to * 10.7 (head length) * of Φ 4.0 (contact pin size)
The test data of 2.7 (stage casing diameter) pins.From the figures above as can be seen that under identical depression depths, apply in the middle part of sample
Pressure be consistently greater than the pressure of sample tail portion, i.e. the hardness at the middle part of sample is more than the hardness of sample tail portion.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of cylindrical pin, it includes the conductive segment set on pin ontology one end, it is characterised in that：The pin ontology
Demarcations are equipped in order to separating between the stage casing and endpiece of pin ontology, the stage casing of the pin ontology is constituted absolutely
The encapsulated portion of edge, the endpiece constitute wire connecting portion；And the hardness in the stage casing of the pin ontology is more than the pin ontology
Endpiece hardness.
2. cylindrical pin according to claim 1, it is characterised in that：The pin ontology is in hollow tubular structure.
3. cylindrical pin according to claim 1 or 2, it is characterised in that：The stage casing of the pin ontology and endpiece
Between change to form apparent demarcations to be separated by step.
4. cylindrical pin according to claim 3, it is characterised in that：The stage casing outer diameter of the pin ontology is more than tail
The outer diameter of section.
5. cylindrical pin according to claim 4, it is characterised in that：The stage casing of the conductive segment, pin ontology and
The outer diameter of endpiece is sequentially reduced.
6. cylindrical pin according to claim 5, it is characterised in that：The stage casing of the pin ontology is by squeezing undergauge
Mode is formed, and the endpiece is formed by way of reducing annealing.
7. cylindrical pin according to claim 6, it is characterised in that：Between the stage casing and endpiece of the pin ontology
Step lateral surface is in arc-shaped.
8. cylindrical pin according to claim 2, it is characterised in that：The opening of the endpiece is provided with outside
Flange.
9. cylindrical pin according to claim 1, it is characterised in that：The stage casing outer diameter of the pin ontology is less than
The outer diameter of endpiece.
10. a kind of plug, it is characterised in that：Including according to any cylindrical pin in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196243.2A CN106532311B (en) | 2016-12-22 | 2016-12-22 | Cylindrical pin and its plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196243.2A CN106532311B (en) | 2016-12-22 | 2016-12-22 | Cylindrical pin and its plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106532311A CN106532311A (en) | 2017-03-22 |
| CN106532311B true CN106532311B (en) | 2018-09-25 |
Family
ID=58340263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611196243.2A Active CN106532311B (en) | 2016-12-22 | 2016-12-22 | Cylindrical pin and its plug |
Country Status (1)
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| CN110098516B (en) * | 2019-06-04 | 2024-01-26 | 广州正业科技有限公司 | Charger pin and production process thereof |
| CN112701553B (en) * | 2020-12-14 | 2022-10-21 | 慈溪市寅升电器有限公司 | Preparation method of solid power supply pin |
| CN116565602A (en) * | 2023-05-16 | 2023-08-08 | 宁波市海曙佳迪五金塑胶有限公司 | English type hollow glue injection pin structure, manufacturing method and application |
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| DE202008014774U1 (en) * | 2007-08-13 | 2009-03-05 | Taller, Michael | pin |
| CN201112736Y (en) * | 2007-09-11 | 2008-09-10 | 虞寅达 | Contact pin used for electric connection |
| CN100502171C (en) * | 2007-09-11 | 2009-06-17 | 虞寅达 | Production technique of cylinder type contact pin for electric connection |
| CN101330188B (en) * | 2008-07-01 | 2010-06-02 | 虞寅达 | Method for preparing cylindrical pin for electric connection |
| CN201392923Y (en) * | 2009-04-20 | 2010-01-27 | 杜小兵 | Novel electric appliance plug |
| JP5857836B2 (en) * | 2012-03-28 | 2016-02-10 | 株式会社オートネットワーク技術研究所 | Connector connection terminal |
| CN104617467B (en) * | 2015-02-05 | 2018-05-25 | 东莞市正好电器有限公司 | Plug base pin manufacturing process |
| CN106159515A (en) * | 2015-04-17 | 2016-11-23 | 江苏健龙电器有限公司 | A kind of with plastic flat pin |
| CN105305128A (en) * | 2015-10-29 | 2016-02-03 | 宁波市鄞州佳迪五金塑胶有限公司 | National standard plug support and manufacturing method thereof |
| CN206340711U (en) * | 2016-12-22 | 2017-07-18 | 虞东升 | Cylindrical pin and its plug |
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Effective date of registration: 20200717 Address after: Guan Hai Wei Zhen Shen Shi Qiao Cun, Cixi City, Ningbo City, Zhejiang Province Patentee after: Cixi Yinsheng Electric Appliance Co., Ltd Address before: Cixi City, Zhejiang province 315314 Ningbo Guanhaiwei Industrial District No. 998 ancient Shilu Patentee before: Yu Dongsheng |