CN107671226A - A kind of oval head slotted head screw forming method - Google Patents
A kind of oval head slotted head screw forming method Download PDFInfo
- Publication number
- CN107671226A CN107671226A CN201710913459.4A CN201710913459A CN107671226A CN 107671226 A CN107671226 A CN 107671226A CN 201710913459 A CN201710913459 A CN 201710913459A CN 107671226 A CN107671226 A CN 107671226A
- Authority
- CN
- China
- Prior art keywords
- wire rod
- upsetting
- flat recess
- former
- formpiston
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/025—Closed die forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
- B21K27/06—Cutting-off means; Arrangements thereof
Abstract
The present invention relates to a kind of oval head slotted head screw forming method, belong to the forming field of oval head slotted head screw class navigation mark part.Wire rod passes through the straightening-wheel on lathe, wire rod is delivered in cutting bushing, cutter moment does shearing motion, and the wire rod for being up to dimensions length is delivered in former, and former push rod withstands wire rod, first upsetting die linear motion carries out material preforming, former push rod ejects wire rod, and first upsetting die and flat recess formpiston do vertical exchange by the sliding block on lathe, send flat recess formpiston on upsetting line, preforming wire rod is continued to extrude by final flat recess formpiston, straight forming flat recess flute profile；Solves oval head slotted head screw existing problem in terms of shaping.
Description
Technical field
The present invention relates to a kind of oval head slotted head screw forming method, belongs to oval head slotted head screw class navigation mark part
Forming field.
Background technology
Oval head slotted head screw is largely used to the connection of sheet metal component and stamping parts on aircraft because simple in construction.In aircraft
Upper extensive use.But navigation mark part precision prescribed is high, the shaping of oval head slotted head screw tends not to upsetting system in place.Therefore, for
Such part, often changes processing technology, and using the work flow of " upsetting system → groove milling → thread rolling ", part material is carried out first
Cold-heading molding, flat recess is then milled out on production miller, last thread rolling shaping, still, processes part flat recess, head is easily produced
Give birth to crackle and depression, part quality are not easy to ensure, efficiency is low.In recent years, with requirement of the aerospace industries to navigation mark part
More and more higher, traditional handicraft manufacture processing can not meet to require.Therefore, quality can be made by designing one kind and being simple to manufacture
Qualified oval head flat recess mould has important practical significance.
The content of the invention
It is an object of the invention to provide a kind of oval head slotted head screw forming method, solves oval head slotted head screw
The existing problem in terms of shaping.
The present invention to achieve these goals, adopts the following technical scheme that：
A kind of oval head slotted head screw forming method, this method are as follows：Wire rod is by the straightening-wheel on lathe, by line
Material is delivered in cutting bushing, and cutter moment does shearing motion, and the wire rod for being up to dimensions length is delivered in former, former top
Bar withstands wire rod, and first upsetting die linear motion carries out material preforming, and former push rod ejects wire rod, first upsetting die and flat recess sun
Mould does vertical exchange by the sliding block on lathe, sends flat recess formpiston on upsetting line, and final flat recess formpiston will be preforming
Wire rod continue to extrude, straight forming flat recess flute profile；
Wire rod after shaping is ejected into rewinding disk by former push rod, and at the same time, straightening-wheel starts to rotate again, that is, is started new
Working cycles.
Further, blank bushing and cutter are bolted on lathe, first upsetting die shell, formpiston formwork and the moon
Mould is directly placed among the die sleeve of lathe, is fixed with hold-down bolt.
Further, this method includes cold upsetting die of car and accessory：
Blank bushing and cutter；
First upsetting die for first upsetting shaping；
Containing first upsetting push rod and spring, the size of first upsetting die cavity can be flexibly adjusted；
Flat recess formpiston and cold-heading former；
The cold-heading former includes；Second die cavity on the flat recess part head is formed for upsetting system, the type with first upsetting shaping
Chamber matches.
Beneficial effects of the present invention：
The method that the present invention provides a kind of shaping of oval head slotted head screw, the part are largely used on aircraft because simple in construction
The connection of sheet metal component and stamping parts, aboard extensive use.The forming parts tend not to direct cold-heading in place for many years.Cause
This, for such part, often changes processing technology, using the work flow of " upsetting system → groove milling → thread rolling ", first to part
Material carries out cold-heading molding, and flat recess, last thread rolling shaping are then milled out on production miller.But processing part flat recess,
Head is also easy to produce crackle and depression, and part quality is not easy to ensure, efficiency is low, in recent years, as aerospace industries are to navigation mark
The requirement more and more higher of part, traditional handicraft manufacture processing can not meet to require.Therefore, designing that one kind is simple to manufacture can
Up-to-standard oval head flat recess mould is made to have important practical significance.
Brief description of the drawings
Fig. 1 is the schematic diagram of the product oval head slotted head screw of the present invention；
Fig. 2 is blank bushing of the present invention（2）And cutter（1）Schematic diagram；
Fig. 3 is equipment schematic diagram needed for the technique of the present invention；
Fig. 4 is formpiston formwork of the present invention（10）With flat recess formpiston（11）Schematic diagram.
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings：
A kind of oval head slotted head screw forming method：Wire rod is delivered to and cut by the straightening-wheel on lathe by wire rod
Cut in bushing 2, the moment of cutter 1 does shearing motion, and the wire rod for being up to dimensions length is delivered in former 7, and former push rod 8 is withstood
Wire rod, first upsetting die 6, which moves along a straight line, to carry out material preforming, and former push rod 8 ejects wire rod, first upsetting die 6 and flat recess formpiston
11 do vertical exchange by the sliding block on lathe, send flat recess formpiston 11 on upsetting line, and flat recess formpiston 11 will be preforming
Wire rod continue to extrude, straight forming flat recess flute profile；
Wire rod after shaping is ejected into rewinding disk by former push rod 8, and at the same time, straightening-wheel starts to rotate again, that is, starts
New working cycles.
Blank bushing 2 and cutter 1 are bolted on lathe, first upsetting die shell 5, formpiston formwork 10 and former 7
It is to be directly placed among the die sleeve of lathe, is fixed with hold-down bolt.
This method includes cold upsetting die of car and accessory：
Blank bushing 2 and cutter 1；
First upsetting die 6 for first upsetting shaping；
Containing first upsetting push rod 5 and spring 3, the size of first upsetting die cavity can be flexibly adjusted；
Flat recess formpiston 11 and cold-heading former 7；
The cold-heading former 7 includes；Second die cavity on the flat recess part head is formed for upsetting system, the type with first upsetting shaping
Chamber matches.
Claims (3)
1. a kind of oval head slotted head screw forming method, the method is characterized in that：Wire rod passes through the school on lathe
Through ship, wire rod is delivered into cutting bushing（2）In, cutter（1）Moment does shearing motion, and the wire rod for being up to dimensions length is sent
To former（7）In, former push rod（8）Withstand wire rod, first upsetting die（6）Linear motion carries out material preforming, former push rod（8）
Wire rod is ejected, first upsetting die（6）With flat recess formpiston（11）Vertical exchange is done by the sliding block on lathe, flat recess formpiston
（11）It is sent on upsetting line, flat recess formpiston（11）Preforming wire rod is continued to extrude, straight forming flat recess flute profile；
Wire rod after shaping passes through former push rod（8）Ejection is into rewinding disk, and at the same time, straightening-wheel starts to rotate again, that is, opens
Begin new working cycles.
2. oval head slotted head screw forming method according to claim 1, it is characterised in that：Blank bushing（2）With cut
Expect knife（1）It is to be bolted on lathe, first upsetting die shell（5）, formpiston formwork（10）And former（7）It is to be directly placed into lathe
Die sleeve among, fixed with hold-down bolt.
3. oval head slotted head screw forming method according to claim 1, it is characterised in that：This method includes cold heading die
Tool and accessory：
Blank bushing（2）And cutter（1）；
First upsetting die for first upsetting shaping（6）；
Contain first upsetting push rod（5）And spring（3）, can flexibly adjust the size of first upsetting die cavity；
Flat recess formpiston（11）With cold-heading former（7）；
The cold-heading former（7）Including；Second die cavity on the flat recess part head is formed for upsetting system, with first upsetting shaping
Die cavity matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913459.4A CN107671226A (en) | 2017-09-30 | 2017-09-30 | A kind of oval head slotted head screw forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913459.4A CN107671226A (en) | 2017-09-30 | 2017-09-30 | A kind of oval head slotted head screw forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107671226A true CN107671226A (en) | 2018-02-09 |
Family
ID=61138736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710913459.4A Pending CN107671226A (en) | 2017-09-30 | 2017-09-30 | A kind of oval head slotted head screw forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107671226A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405787A (en) * | 2018-03-15 | 2018-08-17 | 佛山市嘉之润电业有限公司 | A kind of fastener processing technology |
| CN111570715A (en) * | 2020-05-25 | 2020-08-25 | 绍兴集知汇信息科技有限公司 | Bolt intelligence shaping system of processing |
| CN112296243A (en) * | 2020-09-28 | 2021-02-02 | 河南航天精工制造有限公司 | Cold heading processing method and cold heading die for straight-groove cylindrical head screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501021A (en) * | 2011-11-10 | 2012-06-20 | 深圳航空标准件有限公司 | Machining method for screws of dovetail grooves and cold-upsetting die of machining method |
| CN202343826U (en) * | 2011-10-27 | 2012-07-25 | 河南航天精工制造有限公司 | Cold heading processing device for high-strength self-locking nuts |
| CN202779367U (en) * | 2012-09-06 | 2013-03-13 | 苏州工业园区新凯精密五金有限公司 | Inserting combination stamping die structure |
| CN103386458A (en) * | 2013-07-23 | 2013-11-13 | 苏州工业园区新凯精密五金有限公司 | Forming method of straight slot or cross slot flat tail screw and die structure adopted by same |
| CN106345958A (en) * | 2016-11-30 | 2017-01-25 | 江西洪都航空工业集团有限责任公司 | Molding method for angled screw cap of airplane |
-
2017
- 2017-09-30 CN CN201710913459.4A patent/CN107671226A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202343826U (en) * | 2011-10-27 | 2012-07-25 | 河南航天精工制造有限公司 | Cold heading processing device for high-strength self-locking nuts |
| CN102501021A (en) * | 2011-11-10 | 2012-06-20 | 深圳航空标准件有限公司 | Machining method for screws of dovetail grooves and cold-upsetting die of machining method |
| CN202779367U (en) * | 2012-09-06 | 2013-03-13 | 苏州工业园区新凯精密五金有限公司 | Inserting combination stamping die structure |
| CN103386458A (en) * | 2013-07-23 | 2013-11-13 | 苏州工业园区新凯精密五金有限公司 | Forming method of straight slot or cross slot flat tail screw and die structure adopted by same |
| CN106345958A (en) * | 2016-11-30 | 2017-01-25 | 江西洪都航空工业集团有限责任公司 | Molding method for angled screw cap of airplane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405787A (en) * | 2018-03-15 | 2018-08-17 | 佛山市嘉之润电业有限公司 | A kind of fastener processing technology |
| CN111570715A (en) * | 2020-05-25 | 2020-08-25 | 绍兴集知汇信息科技有限公司 | Bolt intelligence shaping system of processing |
| CN112296243A (en) * | 2020-09-28 | 2021-02-02 | 河南航天精工制造有限公司 | Cold heading processing method and cold heading die for straight-groove cylindrical head screw |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180209 |
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| RJ01 | Rejection of invention patent application after publication |