CN108288770A - A kind of narrow joint terminal, narrow joint terminal production method and special expanding device - Google Patents

A kind of narrow joint terminal, narrow joint terminal production method and special expanding device Download PDF

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Publication number
CN108288770A
CN108288770A CN201810117644.7A CN201810117644A CN108288770A CN 108288770 A CN108288770 A CN 108288770A CN 201810117644 A CN201810117644 A CN 201810117644A CN 108288770 A CN108288770 A CN 108288770A
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CN
China
Prior art keywords
joint terminal
narrow joint
interconnecting piece
tubing
narrow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810117644.7A
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Chinese (zh)
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CN108288770B (en
Inventor
徐建安
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Yueqing Guosai Technology Development Co Ltd
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Individual
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Priority to CN201810117644.7A priority Critical patent/CN108288770B/en
Publication of CN108288770A publication Critical patent/CN108288770A/en
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Publication of CN108288770B publication Critical patent/CN108288770B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/26End pieces terminating in a screw clamp, screw or nut
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • B21D41/02Enlarging
    • B21D41/026Enlarging by means of mandrels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16Apparatus 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Processing Of Terminals (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

The present invention discloses a kind of narrow joint terminal, narrow joint terminal production method and special expanding device, technical solution:Line pressing portion, the interconnecting piece is cylinder, the inner cavity being inserted among it with supply lines, cable;Interconnecting piece, the interconnecting piece are in flat, continuous between both ends of the surface both sides, and centre is equipped with bolt hole.The narrow joint terminal, it is characterised in that:Excessive inclined surface is formed between the line pressing portion and interconnecting piece, which is equipped with the observation panel being connected to the inner cavity of line pressing portion.The narrow joint terminal, it is characterised in that:The narrow joint terminal is made of copper pipe.Lower advantage:The present invention cleverly produces narrow joint terminal by the way of being flared copper pipe both ends, and such as same production is suitable for the electric wire of 70 square metres of numbers or the copper pipe connecting terminal of cable, both can guarantee that the electric wire of 70 square metres of numbers or the smooth of cable penetrated(d=13 mm), and meet crimping and require(D=17mm), and interconnecting piece width w can be made to be less than 24.4mm (for 20mm).

Description

A kind of narrow joint terminal, narrow joint terminal production method and special expanding device
Technical field
The present invention relates to a kind of connecting terminal, more particularly to a kind of narrow head connecting terminal.
Background technology
The structure of connecting terminal includes he and interconnecting piece of line pressing portion, and the line pressing portion is cylinder, has power supply among it The inner cavity that line or cable are inserted into, the interconnecting piece are in flat, are equipped with bolt hole among it.
The width of traditional wired terminal be by copper pipe diameter flatten after it is determined that, copper pipe diameter is bigger, can be got over after punching press It is wide.Such as:A kind of copper pipe connecting terminal for the electric wire or cable being suitable for 70 square metres of numbers is produced, internal diameter of copper pipe d is generally wanted Electric wire or cable can be smoothly penetrated equal to 13mm, outer diameter D will generally be equal to 17mm(That is wall thickness=2mm)Just it can guarantee It will not be ruptured after line pressing portion crimping, and the pulling tension requirements of electric wire or cable and terminal after crimping can be met.Traditional mode of production outer diameter D= The copper pipe connecting terminal of 17mm, internal diameter d=13mm, the interconnecting piece width w after flattening are necessarily greater than or are equal to 24.4mm.It is wide in this way The connecting terminal of degree cannot be satisfied at present to saving wanting for the higher and higher electrical equipment and new-energy automobile of space requirement It asks.
Traditional people are to produce narrow joint terminal, and narrow, this production is cut in the both sides of interconnecting piece by the mode of generally use cutting Mode has the drawback that:1, the interconnecting piece both sides after cutting are disconnected, and cause the reduction of interconnecting piece intensity;2, it processes very numb It is tired, and cost is very high.
Invention content
The technical problem to be solved in the present invention is to provide a kind of narrow joint terminal and production methods.
To solve the above problems, the technical solution adopted by the present invention includes:
Line pressing portion, the interconnecting piece is cylinder, the inner cavity being inserted among it with supply lines, cable;
Interconnecting piece, the interconnecting piece are in flat, continuous between both ends of the surface both sides, and centre is equipped with bolt hole.
The narrow joint terminal, it is characterised in that:Excessive inclined surface is formed between the line pressing portion and interconnecting piece, it should Inclined surface is equipped with the observation panel being connected to the inner cavity of line pressing portion.
The narrow joint terminal, it is characterised in that:The narrow joint terminal is made of copper pipe.
A method of producing narrow joint terminal described above, which is characterized in that include the following steps:
Step 1), Pipe Cutting:Tubing is cut into the length needed for corresponding narrow joint terminal;
Step 2), chamfering:By outer chamfer in the pipe of the tubing cut;
Step 3), flaring:The both ends of tubing are flared by expanding device, form it into line pressing portion;
Step 4), heat treatment:Tubing after flaring is heat-treated;
Step 5), compacting:The interlude of tubing after heat treatment is suppressed, interconnecting piece and inclined surface are formed it into;
Step 6), split it is disconnected:Interconnecting piece that tubing interlude is formed is split from centre disconnected;
Step 7), punching:The centre of interconnecting piece is punched out, bolt hole is formed it into, to which the narrow head described in two be made Terminal.
The production method of the narrow joint terminal, it is characterised in that:The step 6), step 7)It synchronously completes.
The production method of the narrow joint terminal, it is characterised in that:The step 5), step 6), step 7)It synchronously completes.
The production method of the narrow joint terminal, it is characterised in that:The step 3)In, by the enlarged-diameter at tubing both ends 20-30%。
The production method of the narrow joint terminal, it is characterised in that:The step 7)In, to being punched out among interconnecting piece While, synchronously complete the punching of observation panel on inclined surface.
The production method of the narrow joint terminal, it is characterised in that:It further include step 8), plating:To obtained narrow head end Son carries out electroplating processes.
The production method of the narrow joint terminal, it is characterised in that:The expanding device includes being used for above setting rack The fixation of fixed tubing is arranged in rack both sides by oil cylinder pushing flaring die, the flaring fuse of the taper of the flaring die front end.
The narrow joint terminal and production method of the present invention, has the following advantages that:The present invention, which cleverly uses, expands copper pipe both ends Mouthful mode produce narrow joint terminal, such as same production is suitable for the electric wire of 70 square metres of numbers or the copper pipe connecting terminal of cable, both The electric wire or the smooth of cable that can guarantee 70 square metres of numbers penetrate(d=13 mm), and meet crimping and require(D=17mm), and can make Interconnecting piece width w is less than 24.4mm (for 20mm), can also be solved according to the smaller copper tube terminals of required production interconnecting piece width w New-energy automobile and electrical equipment are section space-efficient problem.In addition, the connecting terminal produced, interconnecting piece both ends Continuous structure between the both sides of face substantially increases the intensity of connection.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the front view of the narrow joint terminal of the present invention;
Fig. 2 is the upward view or vertical view of Fig. 1;
The left view of Fig. 3 Fig. 1;
Fig. 4 is the production procedure schematic diagram that the present invention produces narrow joint terminal;
Fig. 5 is the specification schematic diagram that the present invention produces narrow joint terminal;
Fig. 6 is the expanding device of the present invention.
Specific implementation mode
Embodiment 1:
As shown in Figure 1 to Figure 3, narrow joint terminal of the invention is made of copper pipe, and structure includes:Line pressing portion 1 and interconnecting piece 3, it is described Line pressing portion 1 is cylinder, the inner cavity 2 being inserted among it with supply lines or cable;The interconnecting piece is in flat, and upper and lower two Continuous between the both sides of a end face, centre is equipped with bolt hole 4.After the electric wire or cable are inserted into the inner cavity of line pressing portion, pass through folder Tool clamps line pressing portion, so that electric wire or cable is fixed in line pressing portion, by the way that bolt is arranged in the bolt hole of the interconnecting piece It is connect with connecting object.
Further, excessive inclined surface 5 is formed between the line pressing portion and interconnecting piece, which is equipped with and pressure The observation panel 6 of the inner cavity connection in line portion.The insertion position that electric wire or cable are inserted can be observed by observation panel 6, to learn it Whether it is inserted in place.
Embodiment 2:
As Figure 4-Figure 6, the method for the narrow joint terminal described in a kind of production example 1 of the invention, is suitable for producing one kind For the electric wire of 70 square metres of numbers or the copper pipe connecting terminal of cable, that is, require internal diameter d=13mm of line pressing portion and outer diameter D= 17mm(That is wall thickness=2mm).Before processing, before processing first choose internal diameter be 10mm, wall thickness 2-3mm(According to expanding device pressure Contracting is than determining)Copper pipe it is spare, then as follows complete production:
Step 1), Pipe Cutting:Copper pipe is cut into the corresponding narrow required length of joint terminal, since the present invention uses two narrow joint terminals It produces simultaneously, it, should be long by copper pipe such as the narrow joint terminal that production length L is 57mm because copper pipe is cut into 2 times of corresponding narrow joint terminal Degree is cut into 114mm.Due to being flared using cold extrusion, during flaring, 7-10% or so is respectively compressed at copper pipe both ends, therefore Copper pipe length also needs suitably to lengthen.
Step 2), chamfering:45 degree of outer chamfer will be carried out in the pipe at the both ends of the copper pipe cut by chamfer mechanism, simultaneously also Deburring processing can be carried out, preferably to penetrate electric wire or cable.
Step 3), flaring:The both ends of copper pipe are flared by expanding device, form it into line pressing portion, it is specific to use Cold extrusion mode is flared, and is first fixed copper pipe with the stent 7 being arranged above rack, with being arranged in rack both sides Oil cylinder 8 pushes flaring die 9, makes the flaring fuse 10 of flaring die front end(The tapered rod of i.e. a diameter of 13mm)Copper pipe both ends are inserted into, The internal diameter at copper pipe both ends is expanded to 13mm, due to being flared using cold extrusion, during flaring, copper pipe both ends can be pressed Contracting can be such that its wall thickness increases, therefore obtained terminal wall thickness is also in 2mm or so(Allow a certain range of error).
Step 4), heat treatment:Copper pipe after flaring is heat-treated, is specifically added within the temperature range of 600-800 degree Heat 1 minute, makes its softening, in order to suppress.
Step 5), compacting:The interlude of the copper pipe after heat treatment is suppressed by diel, makes to descend tube wall thereon Overlapping forms interconnecting piece, while being formed with excessive inclined surface between interconnecting piece and line pressing portion.
Step 6), split it is disconnected:Interconnecting piece that tubing interlude is formed split from centre by diel disconnected.
Step 7), punching:The centre of interconnecting piece is punched out by diel, bolt hole is formed it into, to make At the narrow joint terminal described in two.
It is above-mentioned, the step 5), step 6), step 7)It can sequentially complete, can also synchronously complete.
It is above-mentioned, the step 3)In, the enlarged-diameter 20-30% at copper material both ends is ideal.Wanting for bore can be met It asks, and the requirement of wall thickness can be met.
It is above-mentioned, the step 5)In, while compacting the interlude of tubing, synchronously complete observation panel on inclined surface Punching.The shape of observation panel is rectangular or round etc..
It is above-mentioned, further include step 8), plating:Electroplating processes are carried out to obtained narrow joint terminal, metal is prevented to play The effect of oxidation.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and All any modification, equivalent and improvement made by within principle etc., are all included in the scope of protection of the present invention.

Claims (10)

1. a kind of narrow joint terminal, which is characterized in that including:
Line pressing portion(1), the line pressing portion is cylinder, the inner cavity being inserted among it with supply lines or cable(2);
Interconnecting piece(3), which is in flat, continuous between both ends of the surface both sides, intermediate to be equipped with bolt hole(4).
2. narrow joint terminal according to claim 1, it is characterised in that:It is formed between the line pressing portion and interconnecting piece excessively Inclined surface(5), which is equipped with the observation panel being connected to the inner cavity of line pressing portion(6).
3. narrow joint terminal according to claim 1, it is characterised in that:The narrow joint terminal is made of copper pipe.
4. a kind of method producing narrow joint terminal described in claim 1, which is characterized in that include the following steps:
Step 1), Pipe Cutting:Tubing is cut into the length needed for the corresponding narrow joint terminal of production;
Step 2), chamfering:By outer chamfer in the pipe of the tubing cut;
Step 3), flaring:The both ends of tubing are flared by expanding device, form it into line pressing portion;
Step 4), heat treatment:Tubing after flaring is heat-treated;
Step 5), compacting:The interlude of tubing after heat treatment is suppressed, interconnecting piece and inclined surface are formed it into;
Step 6), split it is disconnected:Interconnecting piece that tubing interlude is formed is split from centre disconnected;
Step 7), punching:The centre of interconnecting piece is punched out, bolt hole is formed it into, to which the narrow head described in two be made Terminal.
5. the production method of narrow joint terminal according to claim 4, it is characterised in that:The step 6), step 7)It is synchronous It completes.
6. the production method of narrow joint terminal according to claim 4, it is characterised in that:The step 5), step 6), step 7)It synchronously completes.
7. the production method of narrow joint terminal according to claim 4, it is characterised in that:The step 3)In, by tubing two The enlarged-diameter 20-30% at end.
8. the production method of narrow joint terminal according to claim 4, it is characterised in that:The step 5)In, to tubing While interlude is suppressed, the punching of observation panel on inclined surface is synchronously completed.
9. the production method of narrow joint terminal according to claim 4, it is characterised in that:It further include step 8), plating:To The narrow joint terminal arrived carries out electroplating processes.
10. the production method of narrow joint terminal according to claim 4, it is characterised in that:The expanding device includes setting Stent above rack for fixing tubing(7), be arranged in rack both sides by oil cylinder(8)The flaring die of promotion(9), the expansion Mouth mold(9)The flaring fuse of the taper of front end(10).
CN201810117644.7A 2018-02-06 2018-02-06 Narrow-end terminal, narrow-end terminal production method and special flaring device Active CN108288770B (en)

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Application Number Priority Date Filing Date Title
CN201810117644.7A CN108288770B (en) 2018-02-06 2018-02-06 Narrow-end terminal, narrow-end terminal production method and special flaring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810117644.7A CN108288770B (en) 2018-02-06 2018-02-06 Narrow-end terminal, narrow-end terminal production method and special flaring device

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CN108288770B CN108288770B (en) 2020-03-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585143A (en) * 2020-05-28 2020-08-25 永固集团股份有限公司 Punch forming equipment and punch method for wiring terminal
CN113500147A (en) * 2021-09-09 2021-10-15 艾芦精密机械(江苏)有限公司 Production system for metal processing and working method thereof
CN114172003A (en) * 2020-09-11 2022-03-11 矢崎总业株式会社 Method for manufacturing female terminal

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CN102082333A (en) * 2011-01-26 2011-06-01 中铁建电气化局集团轨道交通器材有限公司 Connecting terminal for high speed railway electrification contact network
US7955147B1 (en) * 2010-03-15 2011-06-07 Zierick Manufacturing Corporation Surface mount (SMT) crimp terminal and method of securing wire to same
CN202050064U (en) * 2011-05-06 2011-11-23 凤凰科技集团有限公司 Peep hole type copper terminal
CN202817241U (en) * 2012-08-02 2013-03-20 温州市互通电力设备有限公司 Copper-aluminum combination connector
CN203503799U (en) * 2013-09-26 2014-03-26 泰兴龙溢端子有限公司 Bell mouth copper pipe terminal
JP3195441U (en) * 2014-10-23 2015-01-22 正美 長谷川 Contact parts for connectors with heat shrink tubing
CN205609762U (en) * 2016-05-13 2016-09-28 温州奥锐卡电子科技有限公司 Binding post colds pressing
CN205790460U (en) * 2016-07-20 2016-12-07 北京金风科创风电设备有限公司 Cable binding post and the power cable with this cable binding post
CN205790449U (en) * 2016-04-20 2016-12-07 浙江君易电力科技有限公司 Soft state alloy binding post
CN106964710A (en) * 2017-04-20 2017-07-21 浙江诚康钢管有限公司 A kind of pipe expanding device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7955147B1 (en) * 2010-03-15 2011-06-07 Zierick Manufacturing Corporation Surface mount (SMT) crimp terminal and method of securing wire to same
CN102082333A (en) * 2011-01-26 2011-06-01 中铁建电气化局集团轨道交通器材有限公司 Connecting terminal for high speed railway electrification contact network
CN202050064U (en) * 2011-05-06 2011-11-23 凤凰科技集团有限公司 Peep hole type copper terminal
CN202817241U (en) * 2012-08-02 2013-03-20 温州市互通电力设备有限公司 Copper-aluminum combination connector
CN203503799U (en) * 2013-09-26 2014-03-26 泰兴龙溢端子有限公司 Bell mouth copper pipe terminal
JP3195441U (en) * 2014-10-23 2015-01-22 正美 長谷川 Contact parts for connectors with heat shrink tubing
CN205790449U (en) * 2016-04-20 2016-12-07 浙江君易电力科技有限公司 Soft state alloy binding post
CN205609762U (en) * 2016-05-13 2016-09-28 温州奥锐卡电子科技有限公司 Binding post colds pressing
CN205790460U (en) * 2016-07-20 2016-12-07 北京金风科创风电设备有限公司 Cable binding post and the power cable with this cable binding post
CN106964710A (en) * 2017-04-20 2017-07-21 浙江诚康钢管有限公司 A kind of pipe expanding device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585143A (en) * 2020-05-28 2020-08-25 永固集团股份有限公司 Punch forming equipment and punch method for wiring terminal
CN111585143B (en) * 2020-05-28 2021-03-30 永固集团股份有限公司 Punch forming equipment and punch method for wiring terminal
CN114172003A (en) * 2020-09-11 2022-03-11 矢崎总业株式会社 Method for manufacturing female terminal
CN114172003B (en) * 2020-09-11 2024-02-02 矢崎总业株式会社 Method for manufacturing female terminal
CN113500147A (en) * 2021-09-09 2021-10-15 艾芦精密机械(江苏)有限公司 Production system for metal processing and working method thereof
CN113500147B (en) * 2021-09-09 2021-11-26 艾芦精密机械(江苏)有限公司 Production system for metal processing and working method thereof

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