CN102658305A - Device and method for processing powder metallurgy oil-retaining bearing inner hole - Google Patents
Device and method for processing powder metallurgy oil-retaining bearing inner hole Download PDFInfo
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- CN102658305A CN102658305A CN2012101478882A CN201210147888A CN102658305A CN 102658305 A CN102658305 A CN 102658305A CN 2012101478882 A CN2012101478882 A CN 2012101478882A CN 201210147888 A CN201210147888 A CN 201210147888A CN 102658305 A CN102658305 A CN 102658305A
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- impregnated bearing
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Abstract
The invention relates to a device and method for processing a powder metallurgy oil-retaining bearing inner hole. The device comprises extruding equipment, an extruding head, a mold and a bush, wherein the bush is arranged in the lower end of the mold; an inner hole is formed in the bush; the diameter of the inner hole is larger than the outer diameter of the extruding head; the upper end face of the bush is contacted with the lower end face of a powder metallurgy oil-retaining bearing which is required to be processed and molded; a stepped end face which is matched with the powder metallurgy oil-retaining bearing which is required to be processed and molded is arranged in the mold; and the extruding equipment is a cylinder or a gas-liquid boosting oil cylinder, and is connected with the extruding head. A processing way for taking a cylinder or a gas-liquid boosting cylinder instead of an ordinary punching machine as extruding equipment for extruding is adopted, and an auxiliary rotating member bush is arranged, so that the phenomena of cracks, brittle fracture and the like occurring on the stepped end face in the machining process of the punching machine are overcome, and the service life of the oil-retaining bearing is prolonged.
Description
Technical field
The present invention relates to a kind of processing tool and method of powder metallurgy oil-impregnated bearing endoporus.
Background technology
At present; The powder metallurgy oil-impregnated bearing endoporus adopts processing modes such as lathe, drilling machine, extruding more; For the small size part; The processing mode reaming precision of extruding reaming is higher, surface roughness is less, method is simple, speed is also very fast, and workpiece one-shot forming effect is better, has overcome the part manufacturing deficiency in other machine tooling process.Yet common punch press is to convert circular motion into rectilinear motion to the machined of workpiece, is exerted oneself by main motor; Drive flywheel; Through runnings such as clutch driven gear, bent axle (or eccentric gear), connecting rods, reach the rectilinear motion of slide block, the punch press extrusion head directly presses to material; Make its plastic deformation, obtain required accessory size.For the staged bearing, phenomenons such as crackle, brittle fracture very easily appear in the ladder end in the process.Therefore, need a kind of can effectively overcoming the above problems, guarantee design of part intensity, improve the quality of products processing unit (plant) and method with production security.
Summary of the invention
The present invention will provide a kind of processing unit (plant) of powder metallurgy oil-impregnated bearing endoporus and method; This device and method can effectively solve phenomenons such as the crackle that produces in ladder end face place in the common punch press processing ladder oiliness bearing process, fracture, and can reduce noise effectively.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
A kind of processing unit (plant) of powder metallurgy oil-impregnated bearing endoporus; Comprise extrusion equipment, extrusion head, mould, lining; Be characterized in: mould is placed with lining in the lower end; Be provided with an endoporus in the lining, and the diameter of endoporus is greater than the extrusion head external diameter, the lining upper surface contacts with the lower surface of the powder metallurgy oil-impregnated bearing of moulding to be processed.
Be provided with the ladder end face that a powder metallurgy oil-impregnated bearing with moulding to be processed matches in the mould.
Extrusion equipment is cylinder or gas-liquid pressure-boosting oil cylinder, and is connected with extrusion head.
A kind of processing method of powder metallurgy oil-impregnated bearing endoporus; At first will put into the mould of powder metallurgy oil-impregnated bearing hole processing device through the metallurgical oiliness bearing of reamer processed powders; The support member of the vertical direction of powder metallurgy oil-impregnated bearing is made with lining in the lower end, reduces or the stress of eliminating sintered metal powder bearing ladder end is concentrated, then; Extrusion head is done at cylinder or the descending precession of gas-liquid pressure-boosting oil cylinder effect; Powder metallurgy oil-impregnated bearing is carried out reaming, make it that plastic deformation take place, and obtain given size through mould.
The invention has the beneficial effects as follows:
The present invention adopts gas-liquid pressure-boosting oil cylinder processing oiliness bearing; Gas-liquid pressure-boosting oil cylinder system combines with pressurized cylinder pressurizing cylinder as integral type, use pure air pressure as power source, utilizes the long-pending energy of Pascal when of big or small piston cross-section of booster to keep the principle work that weighs; To improve tens of times of supply oil hydraulic cylinders than low pressure uses; Thereby reach the purpose of formed product, the characteristics of gas-liquid pressure-boosting oil cylinder self also make the speed-controllable of process in addition, and reduce noise and be achieved.In the extrusion process; Lining is provided with a diameter of bore greater than the extrusion head lining in the powder metallurgy oil-impregnated bearing lower end; Making powder metallurgy oil-impregnated bearing supported to become fully by original mould ladder end face is supported by lining; Reduction or elimination oiliness bearing ladder end stress are concentrated, and ladder end phenomenon of rupture is obviously eliminated.
Therefore; The present invention has well solved phenomenons such as the common punch press crackle that the ladder end occurs in to ladder oiliness bearing process, fracture; Improved the mechanical strength of workpiece; The workpiece disqualification rate obviously reduces, and product reliability further improves, and has reduced the manufacturing cost of producing in enormous quantities simultaneously.
Description of drawings
Fig. 1 is an assembly structure sketch map of the present invention;
Fig. 2 is powder metallurgy oil-impregnated bearing endoporus process signal of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
As shown in Figure 1, the processing unit (plant) of powder metallurgy oil-impregnated bearing endoporus of the present invention comprises extrusion equipment, extrusion head 1, mould 2, lining 6 etc.
Mould is placed with lining 6 in 2 lower ends, is provided with an endoporus 5 in the lining 6, and the diameter of endoporus 5 is greater than extrusion head 1 external diameter, and lining 6 upper surfaces contact with the lower surface of the powder metallurgy oil-impregnated bearing 3 of moulding to be processed.Be provided with the ladder end face that a powder metallurgy oil-impregnated bearing 3 with moulding to be processed matches in the mould 2.Extrusion equipment is cylinder or gas-liquid pressure-boosting oil cylinder, and is connected with extrusion head 1.
The processing method of powder metallurgy oil-impregnated bearing endoporus of the present invention; Adopt cylinder or gas-liquid pressure-boosting oil cylinder as extrusion equipment; Powder metallurgy oil-impregnated bearing 3 assemblings are as shown in Figure 1; Extrusion head 1 is made (Fig. 2) at cylinder or the descending precession of gas-liquid pressure-boosting oil cylinder effect, carries out reaming to processing the powder metallurgy oil-impregnated bearing 3 that obtains certain interior hole dimension through reamer, makes it that plastic deformation take place; Obtain given size through mould 2; And through increasing the support member of lining 6 as powder metallurgy oil-impregnated bearing 3 vertical directions, the stress at reduction or elimination end face 4 places is concentrated, for follow-up processing technologys such as sintering, power forging provide mechanical performance better powder metallurgy oil-impregnated bearing preform.
The present invention adopts cylinder or pneumohydraulic pressure-cylinder to substitute the processing mode of common punch press extruding as extrusion equipment; And increased auxiliary revolving meber lining; To overcome phenomenons such as the ladder end occurs in the existing punch press machining process crackle, brittle fracture, prolong the service life of oiliness bearing; This outside cylinder, pneumohydraulic pressure-cylinder supercharging power output are big, quick action, and energy consumption is low, is power source with compressed air, low noise, good reliability, advantages such as " zero pollute " has also further improved operating efficiency, has reduced manufacturing cost.
Claims (4)
1. the processing unit (plant) of a powder metallurgy oil-impregnated bearing endoporus; Comprise extrusion equipment, extrusion head (1), mould (2); It is characterized in that: said mould (2) is placed with lining (6) in the lower end; Be provided with an endoporus (5) in the lining (6), and the diameter of endoporus (5) is greater than extrusion head (1) external diameter, lining (6) upper surface contacts with the lower surface of the powder metallurgy oil-impregnated bearing (3) of moulding to be processed.
2. the processing unit (plant) of powder metallurgy oil-impregnated bearing endoporus according to claim 1 is characterized in that: be provided with the ladder end face that a powder metallurgy oil-impregnated bearing (3) with moulding to be processed matches in the said mould (2).
3. the processing unit (plant) of powder metallurgy oil-impregnated bearing endoporus according to claim 1 is characterized in that: said extrusion equipment is cylinder or gas-liquid pressure-boosting oil cylinder, and is connected with extrusion head (1).
4. one kind is adopted each said processing unit (plant) of claim 1 to 3 that the powder metallurgy oil-impregnated bearing endoporus is carried out processing method; It is characterized in that: the mould (2) that at first will put into the powder metallurgy oil-impregnated bearing hole processing device through the metallurgical oiliness bearing of reamer processed powders (3); The support member of the vertical direction of powder metallurgy oil-impregnated bearing (3) is made in the lower end with lining (6); The stress that reduction or elimination sintered metal powder bearing ladder end face (4) are located is concentrated; Then, extrusion head (1) is done at cylinder or the descending precession of gas-liquid pressure-boosting oil cylinder effect, and powder metallurgy oil-impregnated bearing (3) is carried out reaming; Make it that plastic deformation take place, and obtain given size through mould (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101478882A CN102658305A (en) | 2012-05-14 | 2012-05-14 | Device and method for processing powder metallurgy oil-retaining bearing inner hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101478882A CN102658305A (en) | 2012-05-14 | 2012-05-14 | Device and method for processing powder metallurgy oil-retaining bearing inner hole |
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| CN102658305A true CN102658305A (en) | 2012-09-12 |
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| CN2012101478882A Pending CN102658305A (en) | 2012-05-14 | 2012-05-14 | Device and method for processing powder metallurgy oil-retaining bearing inner hole |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033142A (en) * | 2015-07-10 | 2015-11-11 | 河南光大管业有限公司 | Pressing die and pressing process for welding neck flange |
| CN105090246A (en) * | 2015-08-04 | 2015-11-25 | 华中科技大学 | Infiltration mold for manufacturing oil bearing and manufacturing method for oil bearing |
| CN106694598A (en) * | 2016-12-22 | 2017-05-24 | 湖南南方宇航工业有限公司 | Reaming work fixture |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739620A (en) * | 1972-01-06 | 1973-06-19 | Us Mfg Corp | Process for forming a flared end tubular metal part |
| CN1736630A (en) * | 2005-05-31 | 2006-02-22 | 太原科技大学 | Method for producing circular cog hot forged from generator protective ring and mould |
| CN1817554A (en) * | 2006-03-16 | 2006-08-16 | 钱宗富 | Directional axial conical standpipe process of motorcycle by disposable cold extruding formative machining |
| CN101767159A (en) * | 2010-02-04 | 2010-07-07 | 伊顿（宁波）流体连接件有限公司 | Metal tube flaring molding machine |
| JP2010188355A (en) * | 2009-02-16 | 2010-09-02 | Okita Tekkosho:Kk | Method for forging short cylindrical part with flange or the like |
| US20110219837A1 (en) * | 2008-12-01 | 2011-09-15 | Sumitomo Metal Industries, Ltd. | Upper-end formed glass complex for hot expanding piercing and method of manufacturing billet for hot extrusion pipe making |
| CN202555614U (en) * | 2012-05-14 | 2012-11-28 | 上海理工大学 | Processing device for inner hole of powder metallurgy oil bearing |
-
2012
- 2012-05-14 CN CN2012101478882A patent/CN102658305A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739620A (en) * | 1972-01-06 | 1973-06-19 | Us Mfg Corp | Process for forming a flared end tubular metal part |
| CN1736630A (en) * | 2005-05-31 | 2006-02-22 | 太原科技大学 | Method for producing circular cog hot forged from generator protective ring and mould |
| CN1817554A (en) * | 2006-03-16 | 2006-08-16 | 钱宗富 | Directional axial conical standpipe process of motorcycle by disposable cold extruding formative machining |
| US20110219837A1 (en) * | 2008-12-01 | 2011-09-15 | Sumitomo Metal Industries, Ltd. | Upper-end formed glass complex for hot expanding piercing and method of manufacturing billet for hot extrusion pipe making |
| JP2010188355A (en) * | 2009-02-16 | 2010-09-02 | Okita Tekkosho:Kk | Method for forging short cylindrical part with flange or the like |
| CN101767159A (en) * | 2010-02-04 | 2010-07-07 | 伊顿（宁波）流体连接件有限公司 | Metal tube flaring molding machine |
| CN202555614U (en) * | 2012-05-14 | 2012-11-28 | 上海理工大学 | Processing device for inner hole of powder metallurgy oil bearing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033142A (en) * | 2015-07-10 | 2015-11-11 | 河南光大管业有限公司 | Pressing die and pressing process for welding neck flange |
| CN105090246A (en) * | 2015-08-04 | 2015-11-25 | 华中科技大学 | Infiltration mold for manufacturing oil bearing and manufacturing method for oil bearing |
| CN106694598A (en) * | 2016-12-22 | 2017-05-24 | 湖南南方宇航工业有限公司 | Reaming work fixture |
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Application publication date: 20120912 |