CN104416003A - Cold-extruding forming method of small toothed blind perforated part - Google Patents
Cold-extruding forming method of small toothed blind perforated part Download PDFInfo
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- CN104416003A CN104416003A CN201310385669.2A CN201310385669A CN104416003A CN 104416003 A CN104416003 A CN 104416003A CN 201310385669 A CN201310385669 A CN 201310385669A CN 104416003 A CN104416003 A CN 104416003A
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- tooth
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Abstract
The invention discloses a cold-extruding forming method of a small toothed blind perforated part. The method comprises the following steps: blanking, namely cutting a steel wire coil stock into segments and leaving excessive materials at two ends of the segments; shaping, namely carrying out upset-extruding on the segments in a shaping mold, and extruding excessive waste materials out of the shaping mold; carrying out deburring, namely carrying out deburring on a shaped blank with a grinding material and grinding solution, washing with water and drying; and carrying out gear extruding on one end of the deburred blank by a gear extruding mold. According to the cold-extruding forming method of the small toothed blind perforated part, a machining chipping procedure exists in the whole production process, the impact extrusion method is completely adopted for forming, and the formed product has smooth surface and high form and position accuracy, and can completely achieve the requirements on the shape and the size precision, specified by an end-product drawing; and in the processing technique, few processing procedures are needed, good product consistency and full tooth form can achieved, damaged tooth is avoided, the effects of stable and reliable quality can be achieved, the utilization rate of the material is high, and the cost is low, and the cold-extruding forming method is suitable for volume production of precise small toothed parts.
Description
Technical field
The present invention relates to the blind tooth cold-extrusion molding method of a kind of little profile of tooth.
Background technology
The precise cold of current toothed member is extruded is mainly used in the processing of logical tooth, and for blind extruding of laughing somebody to scorn, especially as the little toothed member of precision of mushroom shaped, machined is needed to excise waste material after taking common cold extrusion mode to extrude rear blank, and the machine added-time, because workpiece is difficult to carry out waste material excision processing without reliable, stable clamping face and locating surface, therefore, usual way has two kinds: the first: adopt bar on numerically controlled lathe, complete car shape, gear hobbing, cut-out processing, afterwards, end face burr is manually removed.The method weak point is: 1 production efficiency is very low, cannot produce in enormous quantities; 2 production costs are high; After 3 gear hobbings, profile of tooth is not full, bad tooth is many, castellated shape uniformity is poor.The second: machine adds base, squeezes gear hobbing after shape.The method weak point is: it is low that 1 machine adds base efficiency; 2 production costs are higher; After 3 gear hobbings, profile of tooth is not full, bad tooth is many, castellated shape uniformity is poor.
Summary of the invention
The object of this invention is to provide that a kind of production efficiency is high, line position precision is high, the blind tooth cold-extrusion molding method of the simple little profile of tooth of technique, concrete scheme of the present invention is as follows:
The blind tooth cold-extrusion molding method of a kind of little profile of tooth, comprises the following steps:
Blanking, is cut into joint material by coiled strip wiring clip, clout is left at joint material two ends;
Shaping, by the upsetting squeeze in shaping mould of joint material, excess waste is extruded outside shaping mould;
Deburring, carries out deburring by the blank abrasive material after shaping and mill liquid, rinses cleaning, dries afterwards with water;
Crowded teeth, carries out crowded teeth by the blank one end after deburring by crowded teeth mould.
Preferably, also comprise crowded shape step, the blank one end after deburring is squeezed out the shape of product except profile of tooth.
Preferably, also comprise cleaning step, with gasoline, the product after crowded teeth is cleaned.
The blind tooth cold-extrusion molding method of little profile of tooth provided by the invention, in whole production process without any scraps during machining operation, adopt that to rush fashion of extrusion shaping completely, product surface after shaping is smooth, the accuracy of form and position is high, reach shape and dimension precision requirement that finished figure specifies completely, this technology method adds. and work operation is few, good product consistency, profile of tooth are full, reliable without bad tooth, steady quality; Stock utilization is high, and cost is low, is applicable to accurate little toothed member and produces in enormous quantities.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 is embodiment of the present invention joint material structural representation;
Fig. 2 is blank structural representation after embodiment of the present invention shaping;
Fig. 3 is that the embodiment of the present invention squeezes blank structural representation after shape;
Fig. 4 is blank structural representation after embodiment of the present invention crowded teeth;
Fig. 5 is another angled arrangement schematic diagram of blank after embodiment of the present invention crowded teeth.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment:
As shown in Fig. 1 ~ Fig. 5, rush the blind tooth cold-extrusion molding method of little profile of tooth one by one, comprise the following steps:
1, blanking, see Fig. 1
With
the blanking of steel wire forcing press, cuts into the joint material of length 10mm ~ 10.2mm on forcing press by coiled strip steel wire;
2, shaping, see Fig. 2
Be placed in the shaping mould with cutting edge by joint material, forcing press carries out upsetting squeeze, and excess waste is extruded outside mould, and the blank diameter after shaping is
length 98.7mm;
3, deburring
By after shaping blank batch put into XL 12 × 2 type spiral-flow type finishing machine add abrasive material and mill liquid carry out deburring, afterwards with water rinse cleaning, dry;
4, crowded teeth, see Fig. 4 and Fig. 5
Put into crowded teeth mould by after micro-for the workpiece after crowded shape painting extruding oil, J23-1 6 gap-framepress is used forward extrusion mode to diameter
length
cylinder carries out crowded teeth.
5, clean
With gasoline, product is cleaned.
6, check
Size and appearance test is carried out by product figure.
Optionally, also comprise
Squeeze shape, see Fig. 3:
Put into crowded shape mould by after micro-for the blank after shaping deburring painting extruding oil, J23-1 6 gap-framepress carry out close and squeeze shape, squeeze out the size of the shape of product except profile of tooth, from major part to top diameter and length be respectively
1.52 ÷ 0.08mm,
f3mm, 25mm.
Due to the few high-accuracy extrusion process cost of the efficiency only 0.2 yuan/part of operation, and machined needs 3.5 yuan/part; Can save the raw material of 2/3 than machined, die life is high, and-pair YG15 carbide alloy crowded teeth mould a life-span can reach more than 300,000 times; Production efficiency is high, is machining 30 times of (the machined 0.5/min of current domestic employing; Precise cold extrudes 15/min).
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, detailed description of the invention and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. the blind tooth cold-extrusion molding method of little profile of tooth, is characterized in that comprising the following steps:
Blanking, is cut into joint material by coiled strip wiring clip, clout is left at joint material two ends;
Shaping, by the upsetting squeeze in shaping mould of joint material, excess waste is extruded outside shaping mould;
Deburring, carries out deburring by the blank abrasive material after shaping and mill liquid, rinses cleaning, dries afterwards with water;
Crowded teeth, carries out crowded teeth by the blank one end after deburring by crowded teeth mould.
2. the blind tooth cold-extrusion molding method of a kind of little profile of tooth as claimed in claim 1, is characterized in that:
Also comprise crowded shape step, the blank one end after deburring is squeezed out the shape of product except profile of tooth.
3. the blind tooth cold-extrusion molding method of a kind of little profile of tooth as claimed in claim 1, is characterized in that:
Also comprise cleaning step, with gasoline, the product after crowded teeth is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310385669.2A CN104416003A (en) | 2013-08-23 | 2013-08-23 | Cold-extruding forming method of small toothed blind perforated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310385669.2A CN104416003A (en) | 2013-08-23 | 2013-08-23 | Cold-extruding forming method of small toothed blind perforated part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104416003A true CN104416003A (en) | 2015-03-18 |
Family
ID=52966766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310385669.2A Pending CN104416003A (en) | 2013-08-23 | 2013-08-23 | Cold-extruding forming method of small toothed blind perforated part |
Country Status (1)
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| CN (1) | CN104416003A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2764512Y (en) * | 2004-12-22 | 2006-03-15 | 郑州机械研究所 | Extrusion mold for inside and outside toothed member |
| KR20060092426A (en) * | 2005-02-17 | 2006-08-23 | 조재인 | Method for manufacturing gear shaft |
| KR20100027258A (en) * | 2008-09-02 | 2010-03-11 | 고석재 | Manufacturing method of gear main drive |
| CN102166588A (en) * | 2010-02-25 | 2011-08-31 | 蒋永宋 | Method for processing half axle gear by using cold extrusion process |
| CN202498092U (en) * | 2012-03-16 | 2012-10-24 | 河南航天精工制造有限公司 | Mould for extrusion forming of tooth parts of tooth-shaped components |
| CN102784868A (en) * | 2012-08-15 | 2012-11-21 | 浙江中航来宝精工科技有限公司 | Lattice-teeth bolt forming method and forming mold used by same |
| CN103659166A (en) * | 2012-09-07 | 2014-03-26 | 重庆长安工业(集团)有限责任公司 | Precision cold extrusion forming processing method for small blind tooth pieces |
-
2013
- 2013-08-23 CN CN201310385669.2A patent/CN104416003A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2764512Y (en) * | 2004-12-22 | 2006-03-15 | 郑州机械研究所 | Extrusion mold for inside and outside toothed member |
| KR20060092426A (en) * | 2005-02-17 | 2006-08-23 | 조재인 | Method for manufacturing gear shaft |
| KR20100027258A (en) * | 2008-09-02 | 2010-03-11 | 고석재 | Manufacturing method of gear main drive |
| CN102166588A (en) * | 2010-02-25 | 2011-08-31 | 蒋永宋 | Method for processing half axle gear by using cold extrusion process |
| CN202498092U (en) * | 2012-03-16 | 2012-10-24 | 河南航天精工制造有限公司 | Mould for extrusion forming of tooth parts of tooth-shaped components |
| CN102784868A (en) * | 2012-08-15 | 2012-11-21 | 浙江中航来宝精工科技有限公司 | Lattice-teeth bolt forming method and forming mold used by same |
| CN103659166A (en) * | 2012-09-07 | 2014-03-26 | 重庆长安工业(集团)有限责任公司 | Precision cold extrusion forming processing method for small blind tooth pieces |
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Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |