CN1820874A - Process for forming external welding leg square nut by multiple work position cold headers from coiled round wire - Google Patents
Process for forming external welding leg square nut by multiple work position cold headers from coiled round wire Download PDFInfo
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- CN1820874A CN1820874A CN 200510033259 CN200510033259A CN1820874A CN 1820874 A CN1820874 A CN 1820874A CN 200510033259 CN200510033259 CN 200510033259 CN 200510033259 A CN200510033259 A CN 200510033259A CN 1820874 A CN1820874 A CN 1820874A
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- external welding
- welding leg
- moulding
- square nut
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Abstract
The process of forming square wingnut with coil rod in a multiple work site cold header includes the following steps: 1. cutting material the automatic feeder feeds; 2. forging to flat the shorn surface of the material; 3. setting practical work site number and pre-forging the hole and contour; 4. forming the welded wings; and 5. punching the hole to the required size. The technological process has high production efficiency, high material utilization rate, low labor strength, high product strength, hardness, precision and outer quality, low cost, and other advantages.
Description
Technical field
The invention belongs to the metal forging manufacture field, relate to the technology of element coil material by multistage cold former forming external welding leg (salient point) square nut.
Background technology
This series products of external welding leg (salient point) square nut belongs to the five metals part, is widely used in aviation, automobile, and industries such as tractor, demand is very big, and requiring in large quantity, producer can satisfy.
Traditional handicraft (one): as shown in Figure 1, use punch press and the plate shown in Figure 1A is carried out processing procedure punching presses such as punching, blanking, external welding leg moulding, the external welding leg shown in machine-shaping Figure 1B (salient point) square nut, this technology has following defective:
(1) stock utilization is extremely low: the material use situation that this traditional handicraft can be described by Figure 1A;
(2) it is limited to process nut thickness;
(3) can only handwork can not realize automated production during the external welding leg moulding.
Traditional handicraft (two): utilize bar steel (bar rod) weight intercepting stock in batches such as to comply with, through punch press shaping, preparation moulding, punching, external welding leg moulding, this technology has following defective:
(1) stock utilization is low: with the manual feeding of bar steel (bar rod), cut and expect that error in length is big; Weight intercepting stock such as comply with, need frequently weigh, waste man-hour, it is low to cut material efficient; During bar steel (bar rod) intercepting stock clout is arranged end to end, when intercepting in enormous quantities, produce a large amount of waste materials; The punching processing procedure is placed before the jumping operation, and punched scrap thickens, and when then producing in enormous quantities, accumulative total waste material amount is big;
(2) each processing procedure can not be connected automatically, and processing procedure is many and disperse easy batch mixing between the processing procedure; Each processing procedure needs the operation by the special messenger, easily produces the material phenomenon that stagnates between the processing procedure, and has increased a large amount of handling times, and production efficiency is low, the processing cost height;
(3) the product precision is low, the quality instability;
(4) labour intensity is big, and safety can't ensure.
Summary of the invention
At the above-mentioned background technological deficiency, main purpose of the present invention has provided with the technology of element coil material by multistage cold former forming external welding leg square nut, the production technology of external welding leg square nut is linked up, realize automation, the standardization of production, has speed of production faster, and the utilization rate height of wire rod (stock) reaches the manufacturing requirement that reduces waste material, promotes product quality and business efficiency.
For achieving the above object, solution of the present invention is to comprise following flow process:
(1) blank:, cut mould and block stock by the automatic feeding feeding;
(2) shaping: planish stock and cut face;
(3) preparation moulding: make actual station number according to shape of product and the stressed situation of mould, carry out the preceding preparation upsetting of hole and profile moulding;
(4) external welding leg moulding: realize that the importing of last profile moulding of external welding leg square nut and two ends face causes the gross weight moulding;
(5) punching: the gross weight in preformed hole dashed remove to required hole dimension.
Wherein: (3) step was to adopt 3 stations or the above multistage cold former of 3 stations that wire rod is passed through the mould cold-heading molding.
After adopting above-mentioned technology, the present invention mainly be with the element coil material by automatic feeding with accurate step-by-step system feeding, through the coherent procedure of cut-out, shaping, preparation moulding, external welding leg moulding, punching product is accomplished without any letup by mould then, product moulding quickly and accurately in continuous forging process, realize automation, the standardization of production, has speed of production faster, and the utilization rate height of wire rod (stock), reach the manufacturing requirement that reduces waste material, promote product quality and business efficiency.
Description of drawings
Fig. 1 is the processing schematic diagram of tradition with sheet-metal press working processing external welding leg square nut;
Figure 1A is the material figure of tradition with sheet metal blanking processing external welding leg square nut;
Figure 1B is the schematic appearance of external welding leg square nut;
Fig. 2 is external welding leg square nut multi-station cold-heading artwork of the present invention (now illustrating this technology with 6 stations);
Fig. 3 is the transhipment folder figure that stock is used that pinches of the present invention.
The specific embodiment
Please refer to Fig. 2, the present invention, has self-feeding therebetween, operation such as pinches automatically, before explanation manufacturing process of the present invention when cut-out, shaping, preparation moulding, external welding leg moulding, punching processing with the element coil material, to self-feeding, an explanation is done in operations such as automatic clamping and conveying device earlier.
A, self-feeding:
The cold headers automatic feeding mainly includes: elements such as cam, charging rocking bar, ratchet, ratchet and conveying wheel.Cam drives the charging rocking bar makes ratchet start ratchet rotate an angle θ, when this ratchet rotates θ, conveying wheel will rotate the θ angle and feeding synchronously, then conveying wheel will be divided into 2 π/branch feedings such as θ, if effective working diameter of conveying wheel is D, then each feed length is π D ÷ (2 π/θ)=D θ/2.
If the volume of external welding leg square nut the 5th stock is V, the diameter of wire rod is d, and feed length is l,
V=π d then
2So/4 * l is l=4v/ π d
2
Because feed length is D θ/2,
So D θ/2=4v/ π d
2
Be θ=8v/ π d
2D
So, as long as with related data for the people, just know θ numerical value, so, just can make feeding accurate by the accurate rotational angle θ of control feeding rocking arm.
B, pinch automatically:
In continuous forging process, for cooperating automatic production, so in the production process, need possess the function that pinches automatically.For this reason, in each production procedure, being equipped with special-purpose transhipment folder (as Fig. 3), as the linking between each flow process, and is the operation requirement that cooperates variant forging flow process, and these special fixtures can divide two kinds of translation anchor clamps and turnover fixtures.
1) translation anchor clamps: in the forging process, make stock keep same orientation to enter a time flow process, use this translation anchor clamps.
2) turnover fixture: in the forging process, need make stock turn over turnback, when changing its original orientation and entering a time flow process, use this turnover fixture.Its principle is to lead the central gear engagement of gear and equipment clamping and conveying device in the central shaft installing one of transhipment folder, and when the anchor clamps translation, this is led gear and is driven to rotate, thereby transhipment folder Rotate 180 degree is to meet arts demand.
After understanding above-mentioned automation mechanized operation mode, consistency and novelty that can clearer this production procedure of discovery be described as follows one by one with regard to each flow process now:
(1) at first is cutting die mouth in the element coil material is sent into step-by-step system by the automatic feeding of multi-station cold-heading molding machine, by outer cutter wire rod cut off then that blank A as shown in Figure 2.Cut off the outer cutter holder in back and clip the die orifice 1D that the 1st punch die is delivered in blank A translation;
The die orifice 1D that (2) the 1st pediment stick 1P are pressed into the 1st punch die with blank A carries out cold-heading and is shaped to stock 1B, stock 1B is ejected the die orifice 1D of the 1st punch die by the 1st backlash rod 1A, enter the 1st transhipment folder, again by the 1st transhipment clip stock 1B upset deliver to the 2nd punch die mouthful 2D;
The die orifice 2D that (3) the 2nd pediment stick 2P are pressed into the 2nd punch die with stock 1B prepares and is shaped to stock 2B, stock 2B is ejected the die orifice 2D of the 2nd punch die by the 2nd backlash rod 2A, enter the 2nd transhipment folder, clip the die orifice 3D that the 3rd punch die is delivered in stock 2B upset by the 2nd transhipment again;
The die orifice 3D that (4) the 3rd pediment stick 3P are pressed into the 3rd punch die with stock 2B prepares and is shaped to stock 3B, stock 3B is ejected the die orifice 3D of the 3rd punch die by the 3rd backlash rod 3A, enter the 3rd transhipment folder, clip the die orifice 4D that the 4th punch die is delivered in stock 3B upset by the 3rd transhipment again;
(5) the 4th pediment stick 4P are pressed into the 4th punch die 4D with stock 3B and prepare and be shaped to stock 4B, by the 4th backlash rod 4A stock 4B are ejected the die orifice 4D of the 4th punch die, enter the 4th transhipment folder, clip stock 4B by the 3rd transhipment again and overturn and deliver to the die orifice 5D of the 5th punch die;
(6) the 5th pediment stick 5P are pressed into the 5th punch die 5D with stock 4B to carry out external welding leg and is shaped to stock 5B, stock 5B is ejected the die orifice 5D of the 5th punch die by the 5th backlash rod 5A, enter the 5th transhipment folder, clip the die orifice 6D that the 6th punch die is delivered in stock 5B upset by the 5th transhipment again;
(7) the 6th pediment stick 6P are pressed into the 6th punch die 6D with stock 5B and carry out punching, finished product 6B, be transferred band after charging tray takes off material and deliver to the check hopper through taking off.
In a word, simple to operate, safety that the present invention uses, the stock utilization height, the external welding leg square nut that can be applicable to various different size types is simultaneously processed.This technology has been opened up the external welding leg square nut field of multi-station cold-heading molding machined application at home, has alleviated domestic steel circumstances in short supply simultaneously.
Claims (2)
1, with the technology of element coil material, it is characterized in that comprising following flow process by multistage cold former forming external welding leg square nut:
(1) blank:, cut mould and block stock by the automatic feeding feeding;
(2) shaping: planish stock and cut face;
(3) preparation moulding: make actual station number according to shape of product and the stressed situation of mould, carry out the preceding preparation upsetting of hole and profile moulding;
(4) external welding leg moulding: realize that the importing of last profile moulding of external welding leg square nut and two ends face causes the gross weight moulding;
(5) punching: the gross weight in preformed hole dashed remove to required hole dimension.
2, use the technology of element coil material by multistage cold former forming external welding leg square nut according to claim 1, it is characterized in that: (3) step was to adopt 3 stations or the above multi-station cold-heading machine equipment of 3 stations that wire rod is passed through the mould cold-heading molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100332597A CN100354057C (en) | 2005-02-19 | 2005-02-19 | Process for forming external welding leg square nut by multiple work position cold headers from coiled round wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100332597A CN100354057C (en) | 2005-02-19 | 2005-02-19 | Process for forming external welding leg square nut by multiple work position cold headers from coiled round wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1820874A true CN1820874A (en) | 2006-08-23 |
| CN100354057C CN100354057C (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100332597A Active CN100354057C (en) | 2005-02-19 | 2005-02-19 | Process for forming external welding leg square nut by multiple work position cold headers from coiled round wire |
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| CN (1) | CN100354057C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618498B (en) * | 2009-07-17 | 2011-05-04 | 宁波安拓实业有限公司 | Manufacturing process of adjusting nut |
| CN102441636A (en) * | 2011-09-02 | 2012-05-09 | 杨恒国 | Production process for water tap quick opening valve rod and special mould thereof |
| CN102615227A (en) * | 2012-04-01 | 2012-08-01 | 常熟新华远紧固件有限公司 | Cold-heading forming method for spring washer nut |
| CN105598314A (en) * | 2016-03-11 | 2016-05-25 | 长沙和捷实业有限公司 | Punching process of metal round pipe locking ring for fireless welding |
| CN105710255A (en) * | 2016-04-20 | 2016-06-29 | 国网上海市电力公司 | Machining technology of antitheft nut of 35KV outdoor upper rod platform support |
| CN105834337A (en) * | 2016-06-01 | 2016-08-10 | 常熟市强盛冲压件有限公司 | Cold forging punch forming process for electric power fitting |
| CN106984766A (en) * | 2016-01-21 | 2017-07-28 | 东莞市展赐精密五金制品厂 | The hex nut post processing technology of with groove |
| CN109513874A (en) * | 2018-12-29 | 2019-03-26 | 苏州工业园区新凯精密五金有限公司 | It is a kind of for manufacturing the cold-heading molding technique and cold heading die group of tetragonal pyramid bottom nut |
| CN109622872A (en) * | 2018-12-21 | 2019-04-16 | 厦门恒耀金属有限公司 | A kind of cold-heading molding technique of the eccentric flange nut with boss and its applied composable mold |
| CN109732029A (en) * | 2019-02-27 | 2019-05-10 | 临清市万合轴承有限公司 | Cold headers are used in bearing roller production technology and bearing roller production |
| CN110180949A (en) * | 2019-06-24 | 2019-08-30 | 唐付君 | Radio frequency connector progressive die cold-extrusion technology |
| CN110788264A (en) * | 2019-08-26 | 2020-02-14 | 上海华鞍汽车配件有限公司 | Cold-heading full-size forming process for polygonal special-shaped ultrathin welding spot cushion block |
| CN111940670A (en) * | 2020-07-23 | 2020-11-17 | 宾科汽车紧固件（昆山）有限公司 | Method for forming welded nut |
| CN112846062A (en) * | 2020-12-31 | 2021-05-28 | 上海华鞍汽车配件有限公司 | Full-size forming equipment of overload jump welded nut cold-heading |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423141A (en) * | 1972-05-12 | 1976-01-28 | Gkn Screws Fasteners Ltd | Manufacture of wing nuts |
| CN1045047A (en) * | 1989-02-25 | 1990-09-05 | 朱学怡 | Process for cold stamping shaping steel thumb nut |
| US5060331A (en) * | 1990-12-21 | 1991-10-29 | Luchu Shinyee Works Co., Ltd. | Method of producing wing nuts |
| CA2502213A1 (en) * | 2002-11-27 | 2004-06-17 | Fabristeel Products Incorporated | Self-attaching female fastener elements and method of forming same |
| TWI220005B (en) * | 2003-04-22 | 2004-08-01 | Feng-Long Wu | Method of cold-forging torque nuts |
-
2005
- 2005-02-19 CN CNB2005100332597A patent/CN100354057C/en active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618498B (en) * | 2009-07-17 | 2011-05-04 | 宁波安拓实业有限公司 | Manufacturing process of adjusting nut |
| CN102441636A (en) * | 2011-09-02 | 2012-05-09 | 杨恒国 | Production process for water tap quick opening valve rod and special mould thereof |
| CN102441636B (en) * | 2011-09-02 | 2015-04-01 | 杨恒国 | Production process for water tap quick opening valve rod and special mould thereof |
| CN102615227A (en) * | 2012-04-01 | 2012-08-01 | 常熟新华远紧固件有限公司 | Cold-heading forming method for spring washer nut |
| CN102615227B (en) * | 2012-04-01 | 2014-09-24 | 常熟新华远紧固件有限公司 | Cold-heading forming method for spring washer nut |
| CN106984766A (en) * | 2016-01-21 | 2017-07-28 | 东莞市展赐精密五金制品厂 | The hex nut post processing technology of with groove |
| CN105598314A (en) * | 2016-03-11 | 2016-05-25 | 长沙和捷实业有限公司 | Punching process of metal round pipe locking ring for fireless welding |
| CN105598314B (en) * | 2016-03-11 | 2018-07-17 | 长沙和捷实业有限公司 | It is a kind of without the fiery welding Sheet Metal Forming Technology of metal circular tube locking ring |
| CN105710255A (en) * | 2016-04-20 | 2016-06-29 | 国网上海市电力公司 | Machining technology of antitheft nut of 35KV outdoor upper rod platform support |
| CN105834337A (en) * | 2016-06-01 | 2016-08-10 | 常熟市强盛冲压件有限公司 | Cold forging punch forming process for electric power fitting |
| CN109622872A (en) * | 2018-12-21 | 2019-04-16 | 厦门恒耀金属有限公司 | A kind of cold-heading molding technique of the eccentric flange nut with boss and its applied composable mold |
| CN109622872B (en) * | 2018-12-21 | 2024-04-09 | 厦门恒耀金属有限公司 | Cold heading forming process of eccentric flange nut with boss and combined die applied by cold heading forming process |
| CN109513874A (en) * | 2018-12-29 | 2019-03-26 | 苏州工业园区新凯精密五金有限公司 | It is a kind of for manufacturing the cold-heading molding technique and cold heading die group of tetragonal pyramid bottom nut |
| CN109732029A (en) * | 2019-02-27 | 2019-05-10 | 临清市万合轴承有限公司 | Cold headers are used in bearing roller production technology and bearing roller production |
| CN110180949A (en) * | 2019-06-24 | 2019-08-30 | 唐付君 | Radio frequency connector progressive die cold-extrusion technology |
| CN110788264A (en) * | 2019-08-26 | 2020-02-14 | 上海华鞍汽车配件有限公司 | Cold-heading full-size forming process for polygonal special-shaped ultrathin welding spot cushion block |
| CN111940670A (en) * | 2020-07-23 | 2020-11-17 | 宾科汽车紧固件（昆山）有限公司 | Method for forming welded nut |
| CN112846062A (en) * | 2020-12-31 | 2021-05-28 | 上海华鞍汽车配件有限公司 | Full-size forming equipment of overload jump welded nut cold-heading |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100354057C (en) | 2007-12-12 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20060823 Assignee: Xiamen Heng Pioneer Metals Corporation Assignor: Xiamen HengYao Pioneer Metals Corporation|Su Biaogeng Contract record no.: 2015350000077 Denomination of invention: Process for forming external welding leg square nut by multiple work position cold headers from coiled round wire Granted publication date: 20071212 License type: Exclusive License Record date: 20151010 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: XIAMEN TONGHENG METAL Co.,Ltd. Assignor: XIAMEN BOLTUN METAL Co.,Ltd.|Su Biaogeng Contract record no.: 2015350000077 Date of cancellation: 20200724 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20060823 Assignee: XIAMEN TONGHENG METAL Co.,Ltd. Assignor: XIAMEN BOLTUN METAL Co.,Ltd.|Su Biaogeng Contract record no.: X2020350000035 Denomination of invention: Technology of forming square nut with external welding leg by multi station cold heading machine with coil rod Granted publication date: 20071212 License type: Exclusive License Record date: 20200728 |
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| EE01 | Entry into force of recordation of patent licensing contract |