CN104646962B - The preparation method of oil return pipe of supercharger - Google Patents
The preparation method of oil return pipe of supercharger Download PDFInfo
- Publication number
- CN104646962B CN104646962B CN201510020165.XA CN201510020165A CN104646962B CN 104646962 B CN104646962 B CN 104646962B CN 201510020165 A CN201510020165 A CN 201510020165A CN 104646962 B CN104646962 B CN 104646962B
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- CN
- China
- Prior art keywords
- metal tube
- pipe
- bending
- preparation
- bellows segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
Abstract
A kind of preparation method of oil return pipe of supercharger, step：Certain size metal tube is chosen as base material, advanced row bellows segment shaping：It is molded using hydraulic pressure, metal tube is fixed with anti-skidding clamping, mould is fixed on into metal runs well, then carries out transverse shear stress with 600MPa water under high pressures；Bending treatment is carried out to metal tube using bending machine：According to the internal diameter size of metal tube, in metal tube plant one can 360 ° rotation universal rotational plugs, universal rotational plug is rotated during processing, and need the lower surface of bending part to pad in metal tube one can to prevent the corrugated bronze cushion block of bending part, in bending part upper surface, pinch roller extruding makes the angle that it is bent into needs；Metal tube two ends after bending and molding are respectively welded supporting flange, present invention process advantages of simple, the angle and slickness of steel pipe bending place can preferably be controlled, obtained oil return tube thickness is uniform and smooth, bellows segment is uniform, bending angle is accurate, takes into account rigidity and flexibility, and low cost of manufacture, long service life.
Description
Technical field
The invention belongs to technical field of internal combustion engines, it is related to a kind of oil return pipe of supercharger, specifically a kind of oil return pipe of supercharger
Preparation method.
Background technology
Oil return pipe of supercharger is the pipeline of booster lubricating oil backflow, is to ensure that booster realizes the important portion of effectively lubricating
Part.Oil return pipe of supercharger in the market typically uses following structure：First, full bellows, the oil return pipe rigidity of this structure
Difference, easily shatters, shakes and break, and causes oil return pipe oil leak；2nd, using the connected mode of hard tube+rubber tube+hard tube, this structure is firm
Property preferably, but assembling is poor, complex procedures, and rubber easily it is aging, burst, cannot normally be used in high-temperature region；3rd, use
The connected mode of hard tube+bellows, such as Chinese utility model patent of Patent No. 200920141191.8《A kind of booster is returned
Oil pipe》, including flange, oil return pipe, bellows and pipe clamp assembly, it is that steel pipe and bellows-welding is integral, has taken into account steel
Pipe and the advantage of bellows, but the two material is different, welding difficulty, easily occurs to be broken because of vibrations, sealing-off, and technique compared with
It is complicated.
Through looking into, the Chinese utility model patent of existing Patent No. CN201220728569.6《A kind of increasing of improved structure
Depressor oil return pipe》, including bellows, described bellows one end is connected with joint, and the other end is connected with flange；The bellows bag
Light pipe and bellows segment are included, the bellows segment is located at the bending position of bellows；The wall thickness of the bellows is 0.3mm~0.5mm,
The oil return pipe of supercharger of this structure takes into account rigidity and flexibility simultaneously, and temperature in use scope is wide, and process is simple, cost is relatively low low
It is honest and clean, but it is the crooked place that bellows segment is arranged on oil return pipe, certainly will be needed if crooked place is more set compared with
Many bellows segments, bellows segment increasing number can influence the rigidity and intensity of oil return pipe.Therefore, at present in technology of preparing, also have
Using by the direct bending forming of steel pipe, but easily wrinkle in bending part, cause in uneven thickness, in the angle of control bending part
It is preferable not enough with slickness aspect, it is further improved.
The content of the invention
The technical problems to be solved by the invention are directed to the above-mentioned state of the art and provide a kind of process is simple, are prepared into
The preparation method of this low oil return pipe of supercharger, can preferably control the angle and slickness of steel pipe bending place, obtained oil return
Tube thickness is uniform and smooth, takes into account rigidity and flexibility, and long service life.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of preparation method of oil return pipe of supercharger,
It is characterized in that comprising the following steps：
First, advanced row bellows segment shaping：Be placed in metal tube in mould as base material by the metal tube that selection is sized,
And metal tube needs to be processed into undulatory ripple fragment position is corresponding with the ripple mould of mould, then with the high pressure of 600MPa
Water is into the ripple that transverse shear stress to sets requirement is carried out in metal tube；
2nd, bending treatment is carried out to metal tube using bending machine：According to the internal diameter size of metal tube, planted in metal tube
One can 360 ° of universal rotational plugs of rotation, universal rotational plug is rotated during processing, and the outer of bending part is needed in metal tube
Cushioning surface one can prevent the bronze cushion block of the corrugated smooth outer surface of bending part, while in the upper surface pinch roller of bending part
Extruding makes metal tube be bent into the angle of needs；
3rd, then, the metal tube two ends after bending and molding are respectively welded supporting flange, that is, be made oil return pipe finished product.
Used as improvement, the metal tube is compo pipe or stainless steel tube.
Used as improvement, the mould includes Upper Die-sleeve and lower die-sleeve, and when hydraulic pressure is molded, die sleeve set is fixed in metal tube periphery
On, during be filled with water in metal tube by startup liquid pump, after certain pressure is reached, the metal tube shell of ripple mould position is roused
It is swollen, until the thin-walled of metal tube is all close to ripple mould inwall, you can release, form removal, taking-up metal tube, the ripple on metal tube
Line shaping is completed.
Used as improvement, the bronze cushion block matches with metal tube bending angle.
Used as improvement, a diameter of 1.8~2.2cm of the metal tube, pipe thickness is 0.2~0.4cm.
Improve again, a diameter of 2.0cm of the metal tube, pipe thickness is 0.3cm.
Improve again, the oil return pipe of supercharger includes three sections of preceding pipe, middle pipe and rear pipe, wherein bellows segment is arranged on middle pipe
(2) on, the ripple number of bellows segment is 10~12, and length is 3-5cm, and the pipe thickness of bellows segment is 0.2~0.4cm.
Improve again, the ripple number of the bellows segment is 11, length is 4cm, and the pipe thickness of bellows segment is 0.3cm.
Further improve, the preceding pipe is middle part in 90~100 ° of bend pipes of angle bending, the front end of preceding pipe and the method
Blue mutually welding.
Further improve, the middle pipe is the straight tube with bellows segment, pipe is to be provided with two bend pipes of bending afterwards, wherein after
Guan Yuzhong pipes are close to flange in 130~160 ° of angle bendings, the rear end of the rear pipe and the mutually welding of the flange in rear pipe
Part is in 100~120 ° of angle inverse bendings.
Compared with prior art, the advantage of the invention is that：Bellows is molded using hydraulic pressure, and ripple forming is uniform, elasticity
It is good；Padded using flexible preferably bronze pad during steel pipe bending, and used universal rotational plug so that bending part thickness
Uniformly, the generation of wrinkling is effectively prevented, and can preferably controls the angle and direction of bending.Present invention process is simply closed
Reason, can preferably control the angle and slickness of steel pipe bending place, and obtained oil return tube thickness is uniform and smooth, and bellows segment is uniform,
Bending angle is accurate, takes into account rigidity and flexibility, and low cost of manufacture, long service life.
Brief description of the drawings
Fig. 1 is the structural perspective of the embodiment of the present invention；
Fig. 2 is structural perspectives of the Fig. 1 in different angles.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1, 2, the preparation method of the oil return pipe of supercharger of the present embodiment, comprises the following steps：
1) metal tube of certain size is chosen as base material, and advanced row bellows segment 2 is molded：It is molded using hydraulic pressure, first by gold
Belong to effective anti-skidding clamping to fix, mould set is scheduled on steel pipe, then carry out transverse shear stress with the water under high pressure of 600MPa, be squeezed into
The bellows segment elasticity of type is good, ripple is uniform；
2) bending treatment is carried out to metal tube using bending machine：According to the internal diameter size of metal tube, planted in metal tube
One can 360 ° of universal rotational plugs of rotation, universal rotational plug is rotated during processing, and in the case where metal tube needs bending part
Cushioning surface one can prevent the corrugated bronze cushion block of bending part, and the upper surface pinch roller extruding in bending part is bent into it to be needed
The angle wanted；
3) then, the metal tube two ends after bending and molding are respectively welded supporting flange 5, that is, be made oil return pipe finished product.
The metal tube is compo pipe or stainless steel tube, preferably stainless steel tube, a diameter of 2.0cm of metal tube, tube wall
Thickness is 0.3cm.
The mould includes Upper Die-sleeve and lower die-sleeve, and when hydraulic pressure is molded, die sleeve set is fixed on metal tube periphery, starts liquid pump
During water is filled with metal tube, after certain pressure is reached, there is bulging in the metal tube shell of ripple mould position, until metal tube
Thin-walled be all close to ripple mould inwall, you can release, form removal, take out metal tube, corrugation on metal tube is completed, institute
State the smooth outer surface of bronze cushion block and match with metal tube bending angle.
Oil return pipe of supercharger prepared by the present invention includes 3 three sections of preceding pipe 1, middle pipe 2 and rear pipe, and wherein bellows segment 4 is arranged on
On middle pipe 2, the ripple number of bellows segment 4 is 11, and length is 4cm, and the pipe thickness of bellows segment 4 is 0.3cm；The preceding pipe 1
It is that middle part is in 90~100 ° of bend pipes of angles bending, the front end of preceding pipe 1 is mutually welded with the adapter of the flange 5, and the middle pipe 2 is
Straight tube with bellows segment 4, the rear pipe 3 is to be provided with two bend pipes of bending, wherein pipe 3 is pressed from both sides with middle pipe 2 in 130~160 ° afterwards
Angle bends, and rear end and the adapter of the flange 5 of the rear pipe 3 mutually weld, rear pipe 3 near the part of flange 5 in 100~
120 ° of angle inverse bendings.
Claims (8)
1. a kind of preparation method of oil return pipe of supercharger, it is characterised in that comprise the following steps：
First, advanced row bellows segment (4) shaping：Be placed in metal tube in mould as base material by the metal tube that selection is sized, and
Metal tube is needed to be processed into undulatory ripple fragment position corresponding with the ripple mould of mould, then with the water under high pressure of 600MPa
The ripple of transverse shear stress to sets requirement is carried out in into metal tube；
2nd, bending treatment is carried out to metal tube using bending machine：According to the internal diameter size of metal tube, plant one can in metal tube
360 ° of universal rotational plugs of rotation, rotate universal rotational plug, and need the outer surface of bending part in metal tube during processing
Pad one can prevent the bronze cushion block of the corrugated smooth outer surface of bending part, while being extruded with pinch roller in the upper surface of bending part
Metal tube is set to be bent into the angle of needs；
3rd, then, the metal tube two ends after bending and molding are respectively welded supporting flange (5), that is, be made oil return pipe finished product；Institute
Stating oil return pipe of supercharger includes preceding pipe (1), middle pipe (2) and rear (3) three sections of pipe, and wherein bellows segment (4) is arranged on middle pipe (2),
The ripple number of bellows segment (4) is 10~12, and length is 3~5cm, and the pipe thickness of bellows segment (4) is 0.2~0.4cm；It is described
Preceding pipe (1) is middle part in 90~100 ° of bend pipes of angle bending, the front end of preceding pipe (1) and the mutually welding of the flange (5)；It is described
Middle pipe (2) is the straight tube with bellows segment (4), and it is to be provided with two bend pipes of bending that (3) are managed afterwards, wherein managing (3) and middle pipe (2) afterwards
Bent in 130~160 ° of angles, the mutually welding of the rear end and the flange (5) of the rear pipe (3), in rear pipe near the portion of flange
It is in 100~120 ° of angle inverse bendings to divide.
2. preparation method according to claim 1, it is characterised in that：The metal tube is compo pipe.
3. preparation method according to claim 1, it is characterised in that：The mould includes Upper Die-sleeve and lower die-sleeve, hydraulic pressure
During shaping, die sleeve set is fixed on metal tube periphery, during be filled with water in metal tube by startup liquid pump, after certain pressure is reached, and ripple
There is bulging in the metal tube shell of line mould position, until the thin-walled of metal tube is all close to ripple mould inwall, you can release, tear open
Mould, taking-up metal tube, the corrugation on metal tube are completed.
4. preparation method according to claim 1, it is characterised in that：The bronze cushion block and metal tube bending angle phase
Match somebody with somebody.
5. the preparation method according to any claim in Claims 1-4, it is characterised in that：The metal tube it is straight
Footpath is 1.8~2.2cm, and pipe thickness is 0.2~0.4cm.
6. preparation method according to claim 5, it is characterised in that：A diameter of 2.0cm of the metal tube, pipe thickness
It is 0.3cm.
7. according to any described preparation method in Claims 1-4, it is characterised in that：The ripple number of the bellows segment (4) is
11, length is 4cm, and the pipe thickness of bellows segment (4) is 0.3cm.
8. preparation method according to claim 2, it is characterised in that：The compo pipe is stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020165.XA CN104646962B (en) | 2015-01-08 | 2015-01-08 | The preparation method of oil return pipe of supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020165.XA CN104646962B (en) | 2015-01-08 | 2015-01-08 | The preparation method of oil return pipe of supercharger |
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| Publication Number | Publication Date |
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| CN104646962A CN104646962A (en) | 2015-05-27 |
| CN104646962B true CN104646962B (en) | 2017-06-27 |
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| CN201510020165.XA Active CN104646962B (en) | 2015-01-08 | 2015-01-08 | The preparation method of oil return pipe of supercharger |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623485B (en) * | 2017-03-07 | 2018-11-16 | 福州诺贝尔福基机电有限公司 | Turbocharging oil return pipe forming apparatus and its moulding process |
| CN111014385A (en) * | 2018-10-10 | 2020-04-17 | 江苏升创管业有限公司 | Manufacturing process of U-shaped aluminum pipe |
| CN110748709B (en) * | 2019-09-10 | 2021-03-19 | 蓝箭航天空间科技股份有限公司 | Preparation method of rocket engine pipeline, rocket engine pipeline and engine |
| CN110871239B (en) * | 2020-01-17 | 2020-05-19 | 潍坊贝金机械有限公司 | Equivalent variable water inlet pipe forming process |
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| CN104646962A (en) | 2015-05-27 |
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Denomination of invention: Preparation method of turbocharger return pipe Effective date of registration: 20230621 Granted publication date: 20170627 Pledgee: Daishan County Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: ZHOUSHAN AOBO PIPING INDUSTRY CO.,LTD. Registration number: Y2023330001241 |