CN101961829B - Bolt molding process requiring chamfering and milling multiple grooves - Google Patents

Bolt molding process requiring chamfering and milling multiple grooves Download PDF

Info

Publication number
CN101961829B
CN101961829B CN2010105018959A CN201010501895A CN101961829B CN 101961829 B CN101961829 B CN 101961829B CN 2010105018959 A CN2010105018959 A CN 2010105018959A CN 201010501895 A CN201010501895 A CN 201010501895A CN 101961829 B CN101961829 B CN 101961829B
Authority
CN
China
Prior art keywords
chamfering
groove
screw rod
bolt
milling
Prior art date
Application number
CN2010105018959A
Other languages
Chinese (zh)
Other versions
CN101961829A (en
Inventor
郑守田
郑小兰
赵志伟
Original Assignee
浙江明泰标准件有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江明泰标准件有限公司 filed Critical 浙江明泰标准件有限公司
Priority to CN2010105018959A priority Critical patent/CN101961829B/en
Publication of CN101961829A publication Critical patent/CN101961829A/en
Application granted granted Critical
Publication of CN101961829B publication Critical patent/CN101961829B/en

Links

Abstract

The invention provides a bolt molding process requiring chamfering and milling multiple grooves, and mainly solves the problem of complicated manufacture process and low production efficiency of the conventional bolt requiring chamfering and milling multiple grooves. The bolt molding process requiring chamfering and milling multiple grooves comprises the following steps: (1) cold upsetting: manufacturing a nut (1), a screw rod (2), a chamfer (3) at the front end of the screw rod (2) and a groove in turn respectively, wherein the mould of the cold upsetting groove (4) is made of two materials with different hardness, the material stamping the groove part has hardness lower than the material stamping other positions, and has certain toughness; and (2) thread rolling: manufacturing threads (5) on the screw rod (2) by using a thread rolling machine. The bolt molding process requiring chamfering and milling multiple grooves has simple steps and high production efficiency.

Description

The bolt moulding process that needs chamfering and multiple-grooved
Technical field
The present invention relates to a kind of processing method of bolt, especially need the bolt moulding process of chamfering and multiple-grooved.
Background technology
At present, there is a kind of end of bolt to be provided with chamfering and the sidewall in the end has groove,, is mainly used in the ground connection of electric product, be convenient to screw in and be embedded in the underground metalwork like earth stud.Above-mentioned this bolt is adding man-hour mainly according to the following steps: 1, cold-heading processes nut and screw rod; 2, car chamfering goes out chamfering in the turning of the end of screw rod; 3, groove milling is difficult to cold-heading by the cold-heading mould of routine and goes out groove, and the phenomenon of mould fracture can take place, and therefore adopts milling machine to mill out groove usually; 4, thread rolling is with the outer screw thread of thread rolling machine processing screw rod.The existing processing technology complicacy that needs the bolt of chamfering and multiple-grooved, production efficiency is low.
Summary of the invention
In order to overcome existing processing technology complicacy and the low deficiency of production efficiency that needs the bolt of chamfering and multiple-grooved, the present invention provides a kind of bolt moulding process that needs chamfering and multiple-grooved, and this processing step is simple, and production efficiency is high.
Technical scheme of the present invention is: this needs the bolt moulding process of chamfering and multiple-grooved to process according to the following steps:
1. cold-heading; Process the chamfering and the groove of nut, screw rod, screw front end successively respectively; Cover adopts two kinds of hardness material different in the mould of cold-heading groove, and the material hardness at other position of the relative punching press of material of stamped recess part is low and have a certain toughness;
2. thread rolling utilizes thread rolling machine to process the screw thread on the screw rod.
The present invention has following beneficial effect: owing to take such scheme, simplified the production technology of the bolt that needs chamfering and multiple-grooved, compared with prior art, production efficiency is high.
Description of drawings
Accompanying drawing 1 is the structural representation of earth stud among the present invention.
Accompanying drawing 2 is that the A of Fig. 1 is to view.
1-nut among the figure, 2-screw rod, 3-chamfering, 4-groove, 5-screw thread.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
By shown in Figure 1, this needs the bolt moulding process of chamfering and multiple-grooved to process according to the following steps:
1. cold-heading; Process the chamfering 3 and the groove 4 of nut 1, screw rod 2, screw rod 2 front ends successively respectively; Cover adopts two kinds of hardness material different in the mould of cold-heading groove 4, and the material hardness at other position of the relative punching press of material of stamped recess part is low and have a certain toughness; When cold-heading groove 4, mould just can not rupture, and has realized that cold-heading processing needs the blank of the bolt of chamfering and multiple-grooved; The mould internal upper part divide to adopt the higher carbide alloy (like CD650) of hardness, and relatively low and the carbide alloy (like YT15 or YT20) with certain toughness of hardness is adopted in the lower part of respective slot 4.
2. thread rolling utilizes thread rolling machine to process the screw thread 5 on the screw rod 2.
The present invention has compared with prior art simplified the production technology of the bolt that needs chamfering and multiple-grooved, has improved production efficiency.

Claims (1)

1. a bolt moulding process that needs chamfering and multiple-grooved, processing according to the following steps:
1. cold-heading; Process the chamfering (3) and the groove (4) of nut (1), screw rod (2), screw rod (2) front end successively respectively; Cover adopts two kinds of hardness material different in the mould of cold-heading groove (4); The material hardness at other position of the relative punching press of material of stamped recess part is low and have certain toughness, so that when the cold-heading groove, mould can not rupture;
2. thread rolling utilizes thread rolling machine to process the screw thread (5) on the screw rod (2).
CN2010105018959A 2010-10-10 2010-10-10 Bolt molding process requiring chamfering and milling multiple grooves CN101961829B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105018959A CN101961829B (en) 2010-10-10 2010-10-10 Bolt molding process requiring chamfering and milling multiple grooves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105018959A CN101961829B (en) 2010-10-10 2010-10-10 Bolt molding process requiring chamfering and milling multiple grooves

Publications (2)

Publication Number Publication Date
CN101961829A CN101961829A (en) 2011-02-02
CN101961829B true CN101961829B (en) 2012-05-16

Family

ID=43514964

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105018959A CN101961829B (en) 2010-10-10 2010-10-10 Bolt molding process requiring chamfering and milling multiple grooves

Country Status (1)

Country Link
CN (1) CN101961829B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102240775A (en) * 2011-05-09 2011-11-16 江苏华灿电讯股份有限公司 Feeder fixture nozzle-lathed bolt molding process
CN102275065B (en) * 2011-06-15 2013-08-07 宁波达峰机械有限公司 Cold extruding forming process for automobile fastening decollation bolt
CN102310311A (en) * 2011-06-15 2012-01-11 宁波达峰机械有限公司 Bolt point-cutting cold heading molding process used for fastening automobile
CN103962809A (en) * 2014-05-21 2014-08-06 贵州航锐航空精密零部件制造有限公司 Manufacturing method for 17-4PH screw
CN103978347B (en) * 2014-05-26 2016-05-25 张家港市锦力标准件制造有限公司 A kind of production technology of plumage daughter board bolt
CN104209701B (en) * 2014-08-15 2017-07-21 宾科汽车紧固件(昆山)有限公司 Automobile sensor cup body production technology
CN108608166A (en) * 2016-12-12 2018-10-02 中国航空工业标准件制造有限责任公司 There is the stud processing method of keyway on a kind of screw thread
CN106541061A (en) * 2016-12-28 2017-03-29 日泰(上海)汽车标准件有限公司 A kind of die bolt with fluting screw thread and processing technique
CN108213315A (en) * 2018-01-04 2018-06-29 泰州市海陵区新科金属制品厂 A kind of processing technology of the shaft core of display bracket
CN109332564B (en) * 2018-09-27 2020-05-08 舟山市7412工厂 Processing method capable of prolonging service life of groove rolling plate of press-riveting bolt
CN109773101A (en) * 2018-12-19 2019-05-21 常熟市常力紧固件有限公司 A kind of moulding process of scrapings slot bolt
CN111037240A (en) * 2020-01-09 2020-04-21 深圳航空标准件有限公司 Manufacturing process of grounding bolt of automobile and grounding bolt thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB617905A (en) * 1945-04-21 1949-02-14 Waterbury Farrel Foundry Co Improvements in or relating to screw blanks
CN1367052A (en) * 2000-08-17 2002-09-04 内克赞斯公司 Equipment for making ring waveform metal pipe
CN201555164U (en) * 2009-12-17 2010-08-18 华映视讯(吴江)有限公司 Wire fastener structure and backlight module

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2909892B2 (en) * 1997-01-29 1999-06-23 株式会社日滉精螺製作所 Hex head bolt manufacturing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB617905A (en) * 1945-04-21 1949-02-14 Waterbury Farrel Foundry Co Improvements in or relating to screw blanks
CN1367052A (en) * 2000-08-17 2002-09-04 内克赞斯公司 Equipment for making ring waveform metal pipe
CN201555164U (en) * 2009-12-17 2010-08-18 华映视讯(吴江)有限公司 Wire fastener structure and backlight module

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开10-211540A 1998.08.11

Also Published As

Publication number Publication date
CN101961829A (en) 2011-02-02

Similar Documents

Publication Publication Date Title
CN103691874B (en) A kind of thin-wall nut manufacturing process
US20030159551A1 (en) Fastener having recess useable with multiple drivers and method of manufacture
CN101780628B (en) Processing process for compressing and riveting nuts
CN202683738U (en) Mould for motor rotor punching sheet processing
CN106862475A (en) The cold upsetting production technique of interior hexagonal studs blank
CN202270903U (en) Embedded forging die
CN101222166A (en) Punching method for motor stator/rotor plate
CN102152063A (en) Process for manufacturing steel bundle terminal blank
CN201338050Y (en) Orifice chamfering or rounding die
CN104438997A (en) Free forging process for large cross forged pieces
CN203356523U (en) Manufacturing device for flange nut through cold heading
CN201969822U (en) Screw nut forging die
CN102240742A (en) Method for designing locking ring material cutting bending die
CN202239204U (en) Enhanced type elongated male die
CN103302225A (en) Manufacturing process of high low screws
US9925581B2 (en) Process of manufacturing wrenches
CN105234281A (en) Bending die with split female dies
CN201543725U (en) Precision composite high-speed stamping die
CN1613572A (en) Extruding shaping method for self-locking nut
CN101564813B (en) Process for machining cold-forging plunger latch head
CN202461396U (en) Cold forging mold for washers
CN204942188U (en) Simple and easy stable pin after a kind of sheet metal forming
CN204308124U (en) For the assembling die of motor-car high gear ring blank forging
CN102935578A (en) Method for manufacturing local boss nut plate by high-intensity biphase steel plate
KR20090057498A (en) Insert nut and method for manufacturing the same

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 325000 Binhai No. 8 Road 519, Wenzhou Economic and Technological Development Zone, Zhejiang Province

Patentee after: Zhejiang Mingtai Holding Development Co., Ltd.

Address before: 325025 No. 110 Merchants Road, Haicheng Industrial City, Longwan District, Wenzhou City, Zhejiang Province

Patentee before: Zhejiang Mingtai Standard Parts Co., Ltd.

CP03 Change of name, title or address