CN202555614U - Processing device for inner hole of powder metallurgy oil bearing - Google Patents
Processing device for inner hole of powder metallurgy oil bearing Download PDFInfo
- Publication number
- CN202555614U CN202555614U CN2012202146216U CN201220214621U CN202555614U CN 202555614 U CN202555614 U CN 202555614U CN 2012202146216 U CN2012202146216 U CN 2012202146216U CN 201220214621 U CN201220214621 U CN 201220214621U CN 202555614 U CN202555614 U CN 202555614U
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- powder metallurgy
- metallurgy oil
- cylinder
- mould
- bush
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Abstract
The utility model relates to a processing device for an inner hole of a powder metallurgy oil bearing. The processing device comprises an extruding device, an extruding head, a mould and a bush and is characterized in that: the bush is placed in the lower end of the mould; the inner hole is formed in the bush; a diameter of the inner hole is more than an outer diameter of the extruding head; an upper end face of the bush is in contact with a lower end face of a to-be-processed powder metallurgy oil bearing; a stepped end face matched with the to-be-processed powder metallurgy oil bearing is arranged in the mould; and the extruding device is a cylinder or a gas-liquid booster cylinder and is connected with the extruding head. According to the processing device provided by the utility model, the processing mode of common punch extrusion is replaced by the cylinder or the gas-liquid booster cylinder which is taken as the extruding device, and an auxiliary rotary element, namely, the bush, is added, so that the phenomena of crack, brittle fracture, and the like, occurred on the stepped end face during the machining process of the present punching machine are overcome, and the service life of an oil bearing is prolonged.
Description
Technical field
The utility model relates to a kind of processing tool 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 utility model is the processing unit (plant) that a kind of powder metallurgy oil-impregnated bearing endoporus will be provided, and this device 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 utility model is realized 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.
The beneficial effect of the utility model is:
The utility model 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 utility model 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 the assembly structure sketch map of the utility model;
Fig. 2 is the powder metallurgy oil-impregnated bearing endoporus process signal of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As shown in Figure 1, the processing unit (plant) of the powder metallurgy oil-impregnated bearing endoporus of the utility model 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 the powder metallurgy oil-impregnated bearing endoporus of the utility model; 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 utility model 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 (3)
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202146216U CN202555614U (en) | 2012-05-14 | 2012-05-14 | Processing device for inner hole of powder metallurgy oil bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202146216U CN202555614U (en) | 2012-05-14 | 2012-05-14 | Processing device for inner hole of powder metallurgy oil bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202555614U true CN202555614U (en) | 2012-11-28 |
Family
ID=47205319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202146216U Expired - Fee Related CN202555614U (en) | 2012-05-14 | 2012-05-14 | Processing device for inner hole of powder metallurgy oil bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202555614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658305A (en) * | 2012-05-14 | 2012-09-12 | 上海理工大学 | Device and method for processing powder metallurgy oil-retaining bearing inner hole |
-
2012
- 2012-05-14 CN CN2012202146216U patent/CN202555614U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658305A (en) * | 2012-05-14 | 2012-09-12 | 上海理工大学 | Device and method for processing powder metallurgy oil-retaining bearing inner hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130514 |