CN104209445A - Cold-heading device for irregular knurling sleeve and production technique of cold-heading device - Google Patents
Cold-heading device for irregular knurling sleeve and production technique of cold-heading device Download PDFInfo
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- CN104209445A CN104209445A CN201410403260.3A CN201410403260A CN104209445A CN 104209445 A CN104209445 A CN 104209445A CN 201410403260 A CN201410403260 A CN 201410403260A CN 104209445 A CN104209445 A CN 104209445A
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Abstract
The invention relates to a cold-heading device for an irregular knurling sleeve and a production technique of the cold-heading device. The device comprises a cropping mechanism, a jacking mechanism, a transmitting mechanism and five moulds, wherein the cropping mechanism is used for cutting off a wire rod; the jacking mechanism is used for jacking the cropped wire rod; the transmitting mechanism is used for moving to transmit the material between the jacking mechanism and the five moulds; the five moulds are composed of a first mould, a second mould, a third mould, a fourth mould and a fifth mould; the first mould is used for reshaping the end faces of the cropped material at two ends; the second mould is used for pre-concaving an elliptical hole; the third mould is used for firstly reversely extruding the elliptical hole; the fourth mould is used for secondarily reversely extruding the elliptical hole; the fifth mould is used for rushing the waste material and reshaping the planes at two ends; the five moulds are successively arrayed. According to the invention, a cold-heading technique is utilized to finish all the sizes, the inner elliptical hole is finished without machining or hotly hitting, the length demand of the irregular knurling sleeve is met, the material and energy sources are saved, the completeness of a metal stream line is kept, the strength of the parts is increased, and the production efficiency is increased.
Description
Technical field
The present invention relates to technical field of mold, particularly a kind of cold-heading device for the manufacture of the special-shaped knurled sleeve in automobile absorber and production technology thereof.
Background technology
All can install damper additional between general automobile chassis and tire, to reduce the impact of thump, travel to reduce automobile the injury caused at uneven road surface.The damper of general vehicle, a kind of special-shaped knurled sleeve 10 used by usual needs, please refer to Fig. 1 a and 1b, the interior bone of described special-shaped knurled sleeve 10 is elliptical aperture 11, outer surface is also provided with the hatching knurling 12 of one fixed width, and the length of described special-shaped knurled sleeve 10 reaches 86mm, therefore, the method of this special-shaped knurled sleeve 10 of current production is machineds, but the stock utilization of this mode is low, production cycle is long, efficiency is low, processing cost is high, and machining process can destroy the metal streamline of material, reduce the strength of materials, cause unstable product quality, another kind of mode is red beating, i.e. forge hot, and heating process needs to consume a large amount of energy.
Summary of the invention
The invention provides a kind of special-shaped knurled sleeve cold-heading device and production technology thereof, to solve the problems of the technologies described above.
For solving the problems of the technologies described above, the invention provides a kind of special-shaped knurled sleeve cold-heading device, comprising material cutting mechanism, ejecting mechanism, connecting gear and five moulds, wherein,
Wire rod cuts off by described material cutting mechanism, the wire rod jack-up that described ejecting mechanism will cut off;
Described connecting gear is moving feeding between described ejecting mechanism and five moulds;
Described five moulds comprise: for the first mould to two ends blank end face shaping, the second mould for pre-recessed elliptical aperture, the 3rd mould for first time backward extrusion elliptical aperture, for the 4th mould of second time backward extrusion elliptical aperture and the 5th mould for rushing waste material and shaping end flat, described five moulds are arranged in order.
Preferably, described five moulds include main mould and punch die, described main mould comprises main formwork, main die, main die-cushion block, main mould thimble and main mould thimble cushion block, described main die is located in described main formwork, master cast chamber is provided with in described main die, described main die-cushion block is located at below described main die, and one end of described main mould thimble is fixed on described main mould thimble cushion block, and the other end stretches in described master cast chamber through described main die-cushion block and main die; Described punch die comprises punch die shell, punch die cushion block and punch die thimble, and described punch die cushion block is located in described punch die shell, and one end of described punch die thimble is fixed on described punch die cushion block, and it is corresponding with described master cast chamber that the other end passes described punch die shell.
Preferably, the punch die mass motion under the driving of drive unit in described first and second moulds.
Preferably; the punch die of described 3rd, the 4th and the 5th mould also comprises push rod in mould, red needle sleeve pipe and sleeve pipe cushion block; described red needle casing pipe sleeve is located at outside described punch die thimble, and described red needle sleeve pipe is fixedly connected with push rod in described mould by described sleeve pipe cushion block.
Preferably, die ejector is equipped with in the punch die of described five moulds.
Preferably, described connecting gear adopts clip.
Preferably, described five moulds are all installed on pressure to make power are on the cold headers of 430 ~ 450 tons.
Present invention also offers a kind of special-shaped knurled sleeve cold heading technique, adopt special-shaped knurled sleeve cold-heading device as above, comprising:
S1: shear wire rod and feeding;
S2: the first mould carries out shaping to two ends blank end face;
The pre-recessed elliptical aperture of S3: the second mould;
S4: the three mould first time backward extrusion elliptical aperture;
S5: the four mould second time backward extrusion elliptical aperture;
S6: the five mould rushes waste material and carries out shaping to end flat.
Compared with prior art, the present invention has the following advantages: the present invention utilizes cold-heading technology to complete all sizes, inner elliptical aperture has been beaten without the need to machined or heat, and the length requirement of special-shaped knurled sleeve can be realized, save material and the energy, keep the complete of metal streamline, and add the intensity of part, and improve production efficiency.
Accompanying drawing explanation
Fig. 1 a is the front view of special-shaped knurled sleeve;
Fig. 1 b is the left view of Fig. 1 a;
Fig. 2 is the structural representation of the special-shaped knurled sleeve cold-heading device of the embodiment of the invention;
Fig. 3 is the structural representation of the first mould of the embodiment of the invention;
Fig. 4 is the structural representation of the 3rd mould of the embodiment of the invention.
In figure: 10-abnormity knurled sleeve, 11-elliptical aperture, 12-hatching knurling;
Push rod, 432-red needle sleeve pipe, 433-sleeve pipe cushion block, 440-the 4th mould, 450-the 5th mould in 100-material cutting mechanism, 200-ejecting mechanism, 300-connecting gear, 400-mould, 410-first mould, the main formwork of 411-, the main die of 412-, 413-main die-cushion block, 414-main mould thimble, 415-main mould thimble cushion block, 416-master cast chamber, 417-punch die shell, 418-punch die cushion block, 419-punch die thimble, 420-second mould, 430-the 3rd mould, 431-mould.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.It should be noted that, accompanying drawing of the present invention all adopts the form of simplification and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Special-shaped knurled sleeve cold-heading device provided by the invention, as shown in Figure 2, and composition graphs 1a to 1b, comprise material cutting mechanism 100, ejecting mechanism 200, connecting gear 300 and five moulds 400, wherein,
Wire rod cuts off by described material cutting mechanism 100, the wire rod jack-up that described ejecting mechanism 200 will cut off;
Described connecting gear 300 is moving feeding between described ejecting mechanism 200 and five moulds 400, and in the present embodiment, described connecting gear 300 adopts clip;
Described five moulds 400 comprise: for the first mould 410 to two ends blank end face shaping, the second mould 420 for pre-recessed elliptical aperture 11, the 3rd mould 430 for first time backward extrusion elliptical aperture 11, for the 4th mould 440 of second time backward extrusion elliptical aperture 11 and the 5th mould 450 for rushing waste material and shaping end flat, described five moulds 400 are arranged in order, particularly, described five moulds 400 are all installed on pressure to make power are on the cold headers of 430 ~ 450 tons.The present invention utilizes cold-heading technology to complete all sizes, has beaten inner elliptical aperture 11, and can realize the length requirement of special-shaped knurled sleeve 10 without the need to machined or heat, save material and the energy, keep the complete of metal streamline, and add the intensity of part, and improve production efficiency.
Preferably, described five moulds 400 include main mould and punch die, please emphasis with reference to figure 3, for the first mould 410, described main mould comprises main formwork 411, main die 412, main die-cushion block 413, main mould thimble 414 and main mould thimble cushion block 415, described main die 412 is located in described main formwork 411, master cast chamber 416 is provided with in described main die 412, described main die-cushion block 413 is located at below described main die 412, one end of described main mould thimble 414 is fixed on described main mould thimble cushion block 415, the other end stretches in described master cast chamber 416 through described main die-cushion block 413 and main die 412, described punch die comprises punch die shell 417, punch die cushion block 418 and punch die thimble 419, described punch die cushion block 418 is located in described punch die shell 417, one end of described punch die thimble 419 is fixed on described punch die cushion block 418, and it is corresponding with described master cast chamber 416 that the other end passes described punch die shell 417.In cold-heading process, product is transferred to corresponding position above master cast chamber 416 by connecting gear 300, punch die thimble 419 promotes in product introduction master cast chamber 416, principle according to material plasticity distortion reaches dimensional requirement in master cast chamber 416, after shaping, by main mould thimble 414, product is released, enter in next mould 400.
Preferably, the punch die mass motion under the driving of drive unit in described first and second moulds 410,420.
Preferably; please emphasis with reference to figure 4; for the 3rd mould 430; the punch die of described 3rd, the 4th and the 5th mould 430,440,450 also comprises push rod 431 in mould, red needle sleeve pipe 432 and sleeve pipe cushion block 433; described red needle sleeve pipe 432 is sheathed on outside described punch die thimble 419, and described red needle sleeve pipe 432 is fixedly connected with push rod 431 in described mould by described sleeve pipe cushion block 433.That is, in the 3rd, the 4th and the 5th mould 430,440,450, punch die cushion block 418 and punch die thimble 419 are synchronized with the movement; In mould, push rod 431, sleeve pipe cushion block 433 and red needle sleeve pipe 432 are synchronized with the movement, thus shaping special-shaped knurled sleeve 10.
Preferably, be equipped with die ejector (not shown) in the punch die of described five moulds 400, i.e. PKO device, thus prevent the situation of carry-over on the head punch.
Present invention also offers a kind of special-shaped knurled sleeve cold heading technique, adopt special-shaped knurled sleeve cold-heading device as above, comprising:
S1: shear wire rod and feeding;
S2: the first 410 pairs, mould two ends blank end face carries out shaping;
The pre-recessed elliptical aperture 11 of S3: the second mould 420;
S4: the three mould 430 first time backward extrusion elliptical aperture 11;
S5: the four mould 440 second time backward extrusion elliptical aperture 11;
S6: the five mould 450 rushes waste material and carries out shaping to end flat.
The present invention realizes the shaping of elliptical aperture 11 by twice backward extrusion, solve the problem of dark elliptical aperture difficult forming, the speed of production of abnormity knurled sleeve 10 can reach 50 per minute, substantially increase production efficiency, certainly, after above-mentioned steps completes, also need the hatching knurling 12 on processing profiled knurled sleeve 10 outer surface; Then surface treatment, to improve the Corrosion Protection of part.
The present invention utilizes cold-heading technology to complete all sizes, inner elliptical aperture 11 has been beaten without the need to machined or heat, and the length requirement of special-shaped knurled sleeve 10 can be realized, save material and the energy, keep the complete of metal streamline, and add the intensity of inside parts tissue, and improve production efficiency, reduce processing cost.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a special-shaped knurled sleeve cold-heading device, is characterized in that, comprises material cutting mechanism, ejecting mechanism, connecting gear and five moulds, wherein,
Wire rod cuts off by described material cutting mechanism, the wire rod jack-up that described ejecting mechanism will cut off;
Described connecting gear is moving feeding between described ejecting mechanism and five moulds;
Described five moulds comprise: for the first mould to two ends blank end face shaping, the second mould for pre-recessed elliptical aperture, the 3rd mould for first time backward extrusion elliptical aperture, for the 4th mould of second time backward extrusion elliptical aperture and the 5th mould for rushing waste material and shaping end flat, described five moulds are arranged in order.
2. special-shaped knurled sleeve cold-heading device as claimed in claim 1, it is characterized in that, described five moulds include main mould and punch die, described main mould comprises main formwork, main die, main die-cushion block, main mould thimble and main mould thimble cushion block, described main die is located in described main formwork, master cast chamber is provided with in described main die, described main die-cushion block is located at below described main die, one end of described main mould thimble is fixed on described main mould thimble cushion block, and the other end stretches in described master cast chamber through described main die-cushion block and main die; Described punch die comprises punch die shell, punch die cushion block and punch die thimble, and described punch die cushion block is located in described punch die shell, and one end of described punch die thimble is fixed on described punch die cushion block, and it is corresponding with described master cast chamber that the other end passes described punch die shell.
3. special-shaped knurled sleeve cold-heading device as claimed in claim 2, is characterized in that, the punch die mass motion under the driving of drive unit in described first and second moulds.
4. special-shaped knurled sleeve cold-heading device as claimed in claim 2; it is characterized in that; the punch die of described 3rd, the 4th and the 5th mould also comprises push rod in mould, red needle sleeve pipe and sleeve pipe cushion block; described red needle casing pipe sleeve is located at outside described punch die thimble, and described red needle sleeve pipe is fixedly connected with push rod in described mould by described sleeve pipe cushion block.
5. special-shaped knurled sleeve cold-heading device as claimed in claim 2, is characterized in that, is equipped with die ejector in the punch die of described five moulds.
6. special-shaped knurled sleeve cold-heading device as claimed in claim 1, is characterized in that, described connecting gear adopts clip.
7. special-shaped knurled sleeve cold-heading device as claimed in claim 1, is characterized in that, described five moulds are all installed on pressure, and to make power be on the cold headers of 430 ~ 450 tons.
8. a special-shaped knurled sleeve cold heading technique, adopts as the special-shaped knurled sleeve cold-heading device in claim 1 ~ 7 as described in any one, it is characterized in that, comprising:
S1: shear wire rod and feeding;
S2: the first mould carries out shaping to two ends blank end face;
The pre-recessed elliptical aperture of S3: the second mould;
S4: the three mould first time backward extrusion elliptical aperture;
S5: the four mould second time backward extrusion elliptical aperture;
S6: the five mould rushes waste material and carries out shaping to end flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403260.3A CN104209445A (en) | 2014-08-15 | 2014-08-15 | Cold-heading device for irregular knurling sleeve and production technique of cold-heading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403260.3A CN104209445A (en) | 2014-08-15 | 2014-08-15 | Cold-heading device for irregular knurling sleeve and production technique of cold-heading device |
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| CN104209445A true CN104209445A (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410403260.3A Pending CN104209445A (en) | 2014-08-15 | 2014-08-15 | Cold-heading device for irregular knurling sleeve and production technique of cold-heading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153647A (en) * | 2019-04-30 | 2019-08-23 | 海盐猛凌汽车配件有限公司 | A kind of GKK010 sleeve processing technology |
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| JPH10146637A (en) * | 1996-11-15 | 1998-06-02 | Masakazu Kotani | Backward extruding method and device therefor |
| JP2004122176A (en) * | 2002-10-02 | 2004-04-22 | Kiyoshi Anami | Method and apparatus for backward extrusion |
| KR100815529B1 (en) * | 2007-07-19 | 2008-03-24 | 주식회사 신도하이텍 | Method for forming mounting pipe, and mounting pipe formed by it |
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| CN110153647A (en) * | 2019-04-30 | 2019-08-23 | 海盐猛凌汽车配件有限公司 | A kind of GKK010 sleeve processing technology |
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Application publication date: 20141217 |