CN106475504A - A kind of one-shot forming technique of employing Huff die cold-heading I-shaped product with holes - Google Patents

A kind of one-shot forming technique of employing Huff die cold-heading I-shaped product with holes Download PDF

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Publication number
CN106475504A
CN106475504A CN201510524961.7A CN201510524961A CN106475504A CN 106475504 A CN106475504 A CN 106475504A CN 201510524961 A CN201510524961 A CN 201510524961A CN 106475504 A CN106475504 A CN 106475504A
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China
Prior art keywords
cold
shaped
heading
flange
holes
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CN201510524961.7A
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Chinese (zh)
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范建军
陈剑飞
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Shanghai Precision Mold Manufacturing Co Ltd
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Shanghai Precision Mold Manufacturing Co Ltd
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Priority to CN201510524961.7A priority Critical patent/CN106475504A/en
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Abstract

The present invention discloses a kind of one-shot forming technique of employing Huff die cold-heading I-shaped product with holes, and which is molded using following processing step:A, bar are through cutter blank;B, shaping;C, stretching endoporus;D, preforming flange;E, shaping end flange;F, remove waste material;G, pass through Hough mold forming other end flange.Above-mentioned shaping step can be additionally used in being molded dry font product with holes suddenly;And for I-shaped product not with holes and dry font product not with holes, get rid of stretching endoporus and go waste material twice technique, equally can be with disposal molding.The beneficial effect of the invention is:Its production efficiency is high, and production product is up to 60-300/minute;Stock utilization is high, typically in 85-100%, reduces spillage of material;While be time processing, change a job sequence without intermediate flow, it is easy to control product quality, reduce the scrappage of product, so as to greatly reducing the production cost of product, improve production efficiency.

Description

A kind of one-shot forming technique of employing Huff die cold-heading I-shaped product with holes
Technical field
The present invention relates to the technical field of cold-heading machine-shaping, and in particular to a kind of low production cost, production efficiency height, the one-shot forming technique of the employing Huff die cold-heading that the quality of production is easy to control, stock utilization is high I-shaped product with holes.
Background technology
Cold-heading be using mould at normal temperatures to metal bar material jumping-up(It is often gathering stock)The forging method of shaping.It is commonly used to manufacture the head of screw, bolt, rivet etc..Can reduce or replace machining.Cold heading technique is directly produced out the product of needs using wire rod through the automatic flow of manipulator through multiple cold extrusion shaped in mould.Now with the fast development of domestic cold headers, the cold upsetting production of metalwork increasingly embodies its quick, advantage of high precision.
And for I-shaped product, generally cannot one-shot forming.I-shaped product is that the external diameter at product two ends is more than intermediate outer, and which is generally used in the middle of two flanges plus rubber ring plays the bushing of shock-absorbing effect, such as automobile engine case shock-absorbing screw bushing.The processing method of I-shaped product, prior art be all mostly by the way of plate punch press is processed or is processed into after the product of I-shaped larger external diameter again with turnery processing.This kind of method processes the shortcoming of I-shaped product:Due to adopting turnery processing, stock utilization is low;Due to not being time processing, there is circulation operation centre, and therefore product quality is wayward, and the scrappage of product is higher;Shaping needs multiple devices, the production cost height of product, low production efficiency.
Mould plays vital effect for the shaping of product, especially for simple product, the advantage that Huff die has which unique.Hough is the transliteration of English " half ", is exactly the meaning of half, and Huff die just refers to that mould is split into two halves split.The advantage of Huff die:Simple structure, open conveniently, Huff die is opened, and can directly take out product, takes out product convenient and swift.Huff die is mainly used on punch press, forcing press.
If Huff die can be applied on cold headers, for realizing the one-shot forming of I-shaped product, to reach the generation for reducing waste material, reduces cost, the purpose for improving production efficiency and product quality, will be a major reform in cold-heading technology, it will bring larger development prospect to enterprise.
Content of the invention
For above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of one-shot forming technique of low production cost, production efficiency are high, the quality of production is easy to control, stock utilization is high employing Huff die cold-heading I-shaped product with holes.
For solving problems of the prior art, the concrete technical scheme of employing is:
A kind of one-shot forming technique of employing Huff die cold-heading I-shaped product with holes, is molded using following processing step:
A, bar are through cutter blank;
B, shaping;
C, stretching endoporus;
D, preforming flange;
E, shaping end flange;
F, remove waste material;
G, pass through Hough mold forming other end flange.
Wherein, shaping described in step B refers to that the blanking to step A carries out cold-heading, makes bar both ends of the surface straight, and is allowed to one end and is shaped to plane, and the other end is shaped to bowl-type face, and the bowl-type face includes a circular flat of an arc surface.
Described in step C, stretching endoporus refers to carry out cold extrusion to the bar after shaping, and the one end for making bar be shaped to plane is centrally formed a blind hole.
Preforming flange described in step D refers to carry out cold-heading to the bar after stretching endoporus described in step C, and the one end for making bar contain bowl-type face is shaped to preforming flange of the diameter slightly larger than diameter of rod.
Shaping end flange described in step E refers to that the preforming flange to step D continues cold-heading processing, makes to form one and its other end blind hole diameter size identical blind hole on flange face, and flange diameter cold-heading increases to form end flange.
Go waste material to refer to remove the waste material between the blind hole at bar two ends described in step F, be allowed to be shaped to a through hole.
Refer to, on cold headers, Huff die is installed by Hough mold forming described in step G, in the Huff die, bottom is provided with and another flange size and shape identical groove to be formed, by cold headers cold-heading, is shaped to the flange of the other end.
This kind of moulding process can also be molded dry font product with holes, and when being molded dry font product with holes, its moulding process is identical with I-shaped product with holes is molded, and difference is the groove in the Huff die in step G in the middle of mould.
This kind of moulding process can also be molded dry font product not with holes and dry font product not with holes, and during shaping both products, its different technique is:Compared with I-shaped product with holes and dry font product with holes is molded, stretching endoporus is lacked and has gone waste material two procedures.
By adopting such scheme, compared with prior art, which has technical effect that a kind of one-shot forming technique of employing Huff die cold-heading of the present invention I-shaped product with holes:
The present invention mainly applies to cold upsetting production not mould moulding process is breathed out, and is achieved by cold headers and is processed and formed at one time, and centre does not need the circulation operation being transferred on other process equipments.Advantage is:(1), a cold headers can achieve each processing step, production efficiency is greatly improved;(2), as without conventional Cutting Process, stock utilization is higher, generally 85-100%, and reduces spillage of material;(3), simultaneously because time processing, change a job sequence without intermediate flow, be therefore more easily controlled product quality, reduce the scrappage of product;(4), due to waste material less, and be not required to other process equipments, therefore greatly reduce the production cost of product.
Description of the drawings
Fig. 1 is the forming step schematic diagram of the one-shot forming technique using Huff die cold-heading I-shaped product with holes;
Fig. 2 is the forming step schematic diagram of the one-shot forming technique using Huff die cold-heading dry font product with holes;
Fig. 3 is the forming step schematic diagram of the one-shot forming technique using Huff die cold-heading I-shaped product not with holes;
Fig. 4 is the forming step schematic diagram of the one-shot forming technique using Huff die cold-heading dry font product not with holes.
Specific embodiment
For making the object, technical solutions and advantages of the present invention of greater clarity, with reference to instantiation, the present invention is described in more detail.It should be understood that these descriptions are simply exemplary, and it is not intended to limit the scope of the present invention.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
The present invention is except for, in addition to being molded I-shaped product with holes, being molded dry font product with holes, and can be molded I-shaped product not with holes and dry font product not with holes.Forming method to various products is introduced one by one below.
Embodiment one
When being molded I-shaped product with holes, its processing step is as shown in figure 1, be sequentially successively:
A1, bar are through cutter blank.
B1, shaping:Blanking to step A carries out cold-heading, makes bar both ends of the surface straight, and is allowed to one end and is shaped to plane, and the other end is shaped to bowl-type face, and the bowl-type face includes a circular flat of an arc surface.
C1, stretching endoporus:Cold extrusion is carried out to the bar after shaping, the one end for making bar be shaped to plane is centrally formed a blind hole.
D1, preforming flange:Cold-heading is carried out to the bar after stretching endoporus described in step C, the one end for making bar contain bowl-type face is shaped to preforming flange of the diameter slightly larger than diameter of rod.
E1, shaping end flange:Preforming flange to step D continues cold-heading processing, makes to form one and its other end blind hole diameter size identical blind hole on flange face, and flange diameter cold-heading increases to form end flange.
F1, remove waste material:The waste material between the blind hole at bar two ends is removed, is allowed to be shaped to a through hole.
G1, pass through Hough mold forming other end flange:Huff die is installed on cold headers, bottom is provided with and another flange size and shape identical groove to be formed in the Huff die, by cold headers cold-heading, is shaped to the flange of the other end.
The with holes I-shaped product that be molded is obtained.
Embodiment two
When being molded dry font product with holes, its processing step is as shown in Fig. 2 be sequentially successively:
A2, bar are through cutter blank.
B2, shaping:Blanking to step A carries out cold-heading, makes bar both ends of the surface straight, and is allowed to one end and is shaped to plane, and the other end is shaped to bowl-type face, and the bowl-type face includes a circular flat of an arc surface.
C2, stretching endoporus:Cold extrusion is carried out to the bar after shaping, the one end for making bar be shaped to plane is centrally formed a blind hole.
D2, preforming flange:Cold-heading is carried out to the bar after stretching endoporus described in step C, the one end for making bar contain bowl-type face is shaped to preforming flange of the diameter slightly larger than diameter of rod.
E2, shaping end flange:Preforming flange to step D continues cold-heading processing, makes to form one and its other end blind hole diameter size identical blind hole on flange face, and flange diameter cold-heading increases to form end flange.
F2, remove waste material:The waste material between the blind hole at bar two ends is removed, is allowed to be shaped to a through hole.
G2, pass through Hough mold forming other end flange:Huff die is installed on cold headers, middle part is provided with and another flange size and shape identical groove to be formed in the Huff die, by cold headers cold-heading, is shaped to the flange of the other end.
The with holes dry font product that be molded is obtained.
Embodiment three
When being molded I-shaped product not with holes, its processing step is as shown in figure 3, be sequentially successively:
A3, bar are through cutter blank.
B3, shaping:Blanking to step A carries out cold-heading, makes bar both ends of the surface straight, and is allowed to one end and is shaped to plane, and the other end is shaped to bowl-type face, and the bowl-type face includes a circular flat of an arc surface.
C3, preforming flange:Cold-heading is carried out to the bar after shaping, the one end for making bar contain bowl-type face is shaped to preforming flange of the diameter slightly larger than diameter of rod.
D3, shaping end flange:Continue cold-heading processing to preforming flange, make flange diameter cold-heading increase to form end flange.
E3, pass through Hough mold forming other end flange:Huff die is installed on cold headers, bottom is provided with and another flange size and shape identical groove to be formed in the Huff die, by cold headers cold-heading, is shaped to the flange of the other end.
The not with holes I-shaped product that be molded is obtained.
Example IV
When being molded dry font product not with holes, its processing step is as shown in figure 4, be sequentially successively:
A4, bar are through cutter blank.
B4, shaping:Blanking to step A carries out cold-heading, makes bar both ends of the surface straight, and is allowed to one end and is shaped to plane, and the other end is shaped to bowl-type face, and the bowl-type face includes a circular flat of an arc surface.
C4, preforming flange:Cold-heading is carried out to the bar after shaping, the one end for making bar contain bowl-type face is shaped to preforming flange of the diameter slightly larger than diameter of rod.
D4, shaping end flange:Continue cold-heading processing to preforming flange, make flange diameter cold-heading increase to form end flange.
E4, pass through Hough mold forming other end flange:Huff die is installed on cold headers, the middle part in the Huff die is provided with and another flange size and shape identical groove to be formed, by cold headers cold-heading, is shaped to the flange of the other end.
The not with holes dry font product that be molded is obtained.
The present invention is by cold headers, using Kazakhstan, not the direct cold-heading of mould is once completed, except production efficiency is high, production product up to 60-300/minute outside, stock utilization is high, typically in 85-100%, reduces spillage of material, while being time processing, change a job sequence without intermediate flow, it is easy to control product quality, reduce the scrappage of product.So as to greatly reducing the production cost of product, improve production efficiency.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the scope of the invention, all any modifications that within the spirit and principles in the present invention, is made, equivalent, is all contained within protection scope of the present invention.

Claims (7)

1. the one-shot forming technique of a kind of employing Huff die cold-heading I-shaped product with holes, it is characterised in which is molded using following processing step:
A, bar are through cutter blank;
B, shaping;
C, stretching endoporus;
D, preforming flange;
E, shaping end flange;
F, remove waste material;
G, pass through Hough mold forming other end flange.
2. the one-shot forming technique of a kind of employing Huff die cold-heading according to claim 1 I-shaped product with holes, it is characterized in that, shaping described in step B refers to that the blanking to step A carries out cold-heading, make bar both ends of the surface straight, and be allowed to one end and be shaped to plane, the other end is shaped to bowl-type face, and the bowl-type face includes a circular flat of an arc surface.
3. the one-shot forming technique of a kind of employing Huff die cold-heading according to claim 2 I-shaped product with holes, it is characterized in that, described in step C, stretching endoporus refers to carry out cold extrusion to the bar after shaping, and the one end for making bar be shaped to plane is centrally formed a blind hole.
4. the one-shot forming technique of a kind of employing Huff die cold-heading according to claim 3 I-shaped product with holes, it is characterized in that, preforming flange described in step D refers to carry out cold-heading to the bar after stretching endoporus described in step C, and the one end for making bar contain bowl-type face is shaped to preforming flange of the diameter slightly larger than diameter of rod.
5. the one-shot forming technique of a kind of employing Huff die cold-heading according to claim 4 I-shaped product with holes, it is characterized in that, shaping end flange described in step E refers to the preforming flange of step D be carried out to continue cold-heading processing, make one and its other end blind hole diameter size identical blind hole on flange face, is formed, and flange diameter cold-heading increases to form end flange.
6. the one-shot forming technique of a kind of employing Huff die cold-heading according to claim 5 I-shaped product with holes, it is characterised in that go waste material to refer to remove waste material between the blind hole at bar two ends by cold-heading described in step F, be allowed to be shaped to a through hole.
7. the one-shot forming technique of a kind of employing Huff die cold-heading according to claim 6 I-shaped product with holes, it is characterized in that, refer to Huff die is installed on cold headers by Hough mold forming described in step G, it is provided with the Huff die and another flange size and shape identical groove to be formed, by cold headers cold-heading, the flange of the other end is shaped to.
CN201510524961.7A 2015-08-25 2015-08-25 A kind of one-shot forming technique of employing Huff die cold-heading I-shaped product with holes Pending CN106475504A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108031780A (en) * 2018-01-12 2018-05-15 上海裴椒汽车部件制造有限公司 A kind of flange head connector cold heading technique and its cold upsetting die of car
CN108422155A (en) * 2018-02-26 2018-08-21 乐清市强特紧固件制造有限公司 A kind of processing technology being exclusively used in hollow nut
CN110586845A (en) * 2019-08-29 2019-12-20 宁波安拓实业有限公司 Manufacturing method of large square nut for automobile chassis connecting system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305383A (en) * 1992-05-01 1993-11-19 Maruzen Byora:Kk Sleeve with split groove and manufacture thereof
CN102500732A (en) * 2011-10-17 2012-06-20 浙江裕泰汽车配件有限公司 Multi-station cold heading forming technology of automobile door limiter
CN102581052A (en) * 2012-02-13 2012-07-18 浙江拓进五金工具有限公司 Multi-position cold extrusion molding method for universal sockets
CN103143580A (en) * 2013-03-12 2013-06-12 宁波安拓实业有限公司 Manufacturing process of conical sleeve
CN203018667U (en) * 2012-08-30 2013-06-26 太仓一标精密模具有限公司 Half split die easy to strip
CN104439029A (en) * 2014-09-15 2015-03-25 浙江超凡新材科技有限公司 Cold-upsetting manufacturing technology for hollow flange rotary shaft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305383A (en) * 1992-05-01 1993-11-19 Maruzen Byora:Kk Sleeve with split groove and manufacture thereof
CN102500732A (en) * 2011-10-17 2012-06-20 浙江裕泰汽车配件有限公司 Multi-station cold heading forming technology of automobile door limiter
CN102581052A (en) * 2012-02-13 2012-07-18 浙江拓进五金工具有限公司 Multi-position cold extrusion molding method for universal sockets
CN203018667U (en) * 2012-08-30 2013-06-26 太仓一标精密模具有限公司 Half split die easy to strip
CN103143580A (en) * 2013-03-12 2013-06-12 宁波安拓实业有限公司 Manufacturing process of conical sleeve
CN104439029A (en) * 2014-09-15 2015-03-25 浙江超凡新材科技有限公司 Cold-upsetting manufacturing technology for hollow flange rotary shaft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108031780A (en) * 2018-01-12 2018-05-15 上海裴椒汽车部件制造有限公司 A kind of flange head connector cold heading technique and its cold upsetting die of car
CN108422155A (en) * 2018-02-26 2018-08-21 乐清市强特紧固件制造有限公司 A kind of processing technology being exclusively used in hollow nut
CN110586845A (en) * 2019-08-29 2019-12-20 宁波安拓实业有限公司 Manufacturing method of large square nut for automobile chassis connecting system

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