CN106475505A - A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading - Google Patents
A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading Download PDFInfo
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- CN106475505A CN106475505A CN201510525098.7A CN201510525098A CN106475505A CN 106475505 A CN106475505 A CN 106475505A CN 201510525098 A CN201510525098 A CN 201510525098A CN 106475505 A CN106475505 A CN 106475505A
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Abstract
The present invention discloses a kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading, and which is molded using following processing step：A, bar are through cutter blank；B, shaping；Hole is drawn in C, shaping；D, crowded hole are preforming；E, the cylindrical groove of Hough contour forming；F, finishing length；G, remove waste material.Above-mentioned forming step is used for being molded cylindrical hollow products with groove, and for cylindrical solid product with groove and flanged and cylindrical with groove hollow and solid product, its forming principle is identical.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
Technical field
The present invention relates to the technical field of cold-heading machine-shaping, and in particular to the one-shot forming technique of round belt groove product outside the employing Huff die cold-heading that a kind of low production cost, production efficiency are high, the quality of production is easy to control, stock utilization is high.
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.
For some cylindrical reeded products, many at present using first cold-heading, pass through turnery processing afterwards or rolling completes groove, the effect of the groove is mainly slip-off preventing or the grease lubrication of moulding.On this kind of method processing excircles, the shortcoming of reeded product is：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 cylindrical reeded product, to reach the generation for reducing waste material, reduces cost, the purpose for improving production efficiency and product quality, to 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 the outer round belt groove product of the employing Huff die cold-heading that low production cost, production efficiency are high, the quality of production is easy to control, stock utilization is high.
For solving problems of the prior art, the concrete technical scheme of employing is：
A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading, is molded using following processing step：
A, bar are through cutter blank；
B, shaping；
Hole is drawn in C, shaping；
D, crowded hole are preforming；
E, the cylindrical groove of Hough contour forming；
F, finishing length；
G, remove waste material.
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.
Shaping described in step C is drawn hole and refers to carry out cold extrusion to the bar after shaping, makes bar be centrally formed a blind hole in the one end for being shaped to plane, the stretching location hole being allowed to as subsequent processing.
Crowded hole described in step D is preforming to refer to that drawing the bar behind hole to shaping described in step C carries out cold-heading, the blind hole for being formed step C is deepened, while make one end that bar contains bowl-type face be shaped to a blind hole, and the diameter of this blind hole diameter blind hole is molded by face corresponding thereto is identical.
The cylindrical groove of Hough contour forming described in step E refers to install Huff die on cold headers, is provided with the dome arc corresponding with groove size shape to be molded in the Huff die, by cold headers cold-heading, forms groove in bar outer round surface.
Finishing length described in step F refers to carry out cold-heading to the bar after the cylindrical groove of Hough contour forming, the product length needed for obtaining.
Waste material is gone to refer to, by the waste material between the blind hole at cold-heading removal bar two ends, be allowed to be shaped to a through hole described in step G.
Above operation is the processing step for being molded circular tube shaped product, and for columned solid product and flanged (FLGD) hollow object product, its principle is identical, and processing step is similar：
For columned solid product, it is only necessary to through following steps cold-heading molding：1st, bar is through cutter blank；2nd, shaping；3rd, the cylindrical groove of Hough contour forming；4th, finishing length.
For flanged (FLGD) hollow object product, need through following steps cold-heading molding：1st, bar is through cutter blank；2nd, shaping；3rd, hole forming is squeezed；4th, flange forming；5th, the cylindrical groove of Hough contour forming；6th, finishing length；7th, waste material is removed.
By adopting such scheme, outside a kind of employing Huff die cold-heading of the present invention, compared with prior art, which has technical effect that the one-shot forming technique of round belt groove product：
The present invention mainly applies to cold upsetting production Hough mould moulding process, 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 turning 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 the outer round belt groove hollow products of Huff die cold-heading；
Fig. 2 is the forming step schematic diagram of the one-shot forming technique using the outer round belt groove solid product of Huff die cold-heading；
Fig. 3 is the forming step schematic diagram of the one-shot forming technique using the flanged (FLGD) outer round belt groove hollow products of Huff die cold-heading.
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 being molded outside outer round belt groove hollow products, the solid and flanged (FLGD) outer round belt groove hollow products of outer round belt groove can also be molded, its forming principle is identical, and simply forming step is similar, and the forming method to various products is introduced one by one below.
Embodiment one
When being molded outer round belt groove hollow products, 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.
Hole is drawn in c1, shaping：Cold extrusion is carried out to the bar after shaping, makes bar a blind hole is centrally formed in the one end for being shaped to plane, the stretching location hole being allowed to as subsequent processing.
D1, crowded hole are preforming：Drawing the bar behind hole to shaping carries out cold-heading, and the blind hole that formed step c1 is deepened, while the one end for making bar contain bowl-type face is shaped to a blind hole, and the diameter of this blind hole diameter blind hole is molded by face corresponding thereto is identical.
E1, the cylindrical groove of Hough contour forming：Huff die is installed on cold headers, the dome arc corresponding with groove size shape to be molded in the Huff die, is provided with, by cold headers cold-heading, groove is formed in bar outer round surface.
F1, finishing length：Cold-heading is carried out to the bar after the cylindrical groove of Hough contour forming, the product length needed for obtaining.
G1, remove waste material：Waste material between the blind hole at bar two ends is removed by cold-heading, is allowed to be shaped to a through hole.
By above step, you can obtain cylindrical hollow products with groove.
Embodiment two
When being molded cylindrical solid product with groove, 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, forms a cylindrical bar.
C2, the cylindrical groove of Hough contour forming：Huff die is installed on cold headers, the dome arc corresponding with groove size shape to be molded in the Huff die, is provided with, by cold headers cold-heading, the bar outer round surface after shaping forms groove.
D2, finishing length：Cold-heading is carried out to the bar after the cylindrical groove of Hough contour forming, the product length needed for obtaining.
By above step, you can obtain cylindrical solid product with groove.
Embodiment three
When being molded flanged (FLGD) outer round belt groove hollow products, 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, crowded hole forming：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, make the stretching location hole of subsequent processing.
D3, flange forming：Bar to squeezing after hole forming carries out cold-heading, and the blind hole for being formed step c3 is deepened, while the one end for making bar contain bowl-type face is shaped to a flange, and the median plane cold-heading to flange so as to which median plane is shaped to a blind hole.
E3, the cylindrical groove of Hough contour forming：Huff die is installed on cold headers, the dome arc corresponding with groove size shape to be molded in the Huff die, is provided with, by cold headers cold-heading, the bar outer round surface after flange forming forms groove.
F3, finishing length：Cold-heading is carried out to the bar after the cylindrical groove of Hough contour forming, the product length needed for obtaining.
G3, remove waste material：Waste material between the blind hole at bar two ends is removed by cold-heading, is allowed to be shaped to a through hole.
Flanged (FLGD) outer round belt groove hollow products are obtained.
For flanged (FLGD) cylindrical solid product with groove, similar processing step may also be employed and carrys out cold-heading molding, for flanged (FLGD) cylindrical hollow products with groove, what processing step removed the crowded hole forming of c3 and g3 removes waste material.
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 the outer round belt groove product of a kind of employing Huff die cold-heading, it is characterised in which is molded using following processing step：
A, bar are through cutter blank；
B, shaping；
Hole is drawn in C, shaping；
D, crowded hole are preforming；
E, the cylindrical groove of Hough contour forming；
F, finishing length；
G, remove waste material.
2. the one-shot forming technique of the outer round belt groove product of a kind of employing Huff die according to claim 1 cold-heading, 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 the outer round belt groove product of a kind of employing Huff die according to claim 2 cold-heading, it is characterized in that, shaping described in step C is drawn hole and refers to carry out cold extrusion to the bar after shaping, bar is made to be centrally formed a blind hole in the one end for being shaped to plane, the stretching location hole being allowed to as subsequent processing.
4. the one-shot forming technique of the outer round belt groove product of a kind of employing Huff die according to claim 3 cold-heading, it is characterized in that, crowded hole described in step D is preforming to refer to that drawing the bar behind hole to shaping described in step C carries out cold-heading, the blind hole for being formed step C is deepened, while make one end that bar contains bowl-type face be shaped to a blind hole, and the diameter of this blind hole diameter blind hole is molded by face corresponding thereto is identical.
5. the one-shot forming technique of the outer round belt groove product of a kind of employing Huff die according to claim 4 cold-heading, it is characterized in that, the cylindrical groove of Hough contour forming described in step E refers to install Huff die on cold headers, the dome arc corresponding with groove size shape to be molded is provided with the Huff die, by cold headers cold-heading, groove is formed in bar outer round surface.
6. the one-shot forming technique of the outer round belt groove product of a kind of employing Huff die according to claim 5 cold-heading, it is characterised in that finishing length described in step F refers to carry out cold-heading to the bar after the cylindrical groove of Hough contour forming, the product length needed for obtaining.
7. the one-shot forming technique of the outer round belt groove product of a kind of employing Huff die according to claim 6 cold-heading, 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 G, be allowed to be shaped to a through hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510525098.7A CN106475505A (en) | 2015-08-25 | 2015-08-25 | A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading |
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| CN201510525098.7A CN106475505A (en) | 2015-08-25 | 2015-08-25 | A kind of one-shot forming technique of the outer round belt groove product of employing Huff die cold-heading |
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Cited By (3)
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| CN109013996A (en) * | 2018-09-06 | 2018-12-18 | 宁波思明汽车附件有限公司 | A kind of cold-heading molding valve cock and its moulding process |
| CN109551180A (en) * | 2018-11-29 | 2019-04-02 | 上海鸿基金属制品有限公司 | A kind of processing technology of threaded long casing |
| CN111822647A (en) * | 2020-06-05 | 2020-10-27 | 宁波甬微集团有限公司 | Manufacturing method of rolling piston for refrigeration compressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013996A (en) * | 2018-09-06 | 2018-12-18 | 宁波思明汽车附件有限公司 | A kind of cold-heading molding valve cock and its moulding process |
| CN109551180A (en) * | 2018-11-29 | 2019-04-02 | 上海鸿基金属制品有限公司 | A kind of processing technology of threaded long casing |
| CN111822647A (en) * | 2020-06-05 | 2020-10-27 | 宁波甬微集团有限公司 | Manufacturing method of rolling piston for refrigeration compressor |
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