CN104476111A - Processing method of car tail pipe - Google Patents
Processing method of car tail pipe Download PDFInfo
- Publication number
- CN104476111A CN104476111A CN201410559693.8A CN201410559693A CN104476111A CN 104476111 A CN104476111 A CN 104476111A CN 201410559693 A CN201410559693 A CN 201410559693A CN 104476111 A CN104476111 A CN 104476111A
- Authority
- CN
- China
- Prior art keywords
- port
- finished product
- length
- bent limit
- product
- 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.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 239000000047 product Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000011265 semifinished product Substances 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 6
- 210000000867 larynx Anatomy 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000004080 punching Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a processing method of a car tail pipe. The processing method of the car tail pipe comprises the following steps: a, punching a sheet on the piece material, two opposite sides of the sheet are the straight flanges being the same on length and other sides are the curved sides, the length of one curved side is less than the length of the other curved side; b, bending the sheet for bonding two straight flanges together, welding two straight flanges together in a shape of barrel, the port at one end is big while the port at the other end is small, the side has no seam, the cross section of the side from one port to the other port is the semi-finished product of the straight flange; c, removing the welded burr, placing the semi-finished product in the mould with a shape of the product, closing die and extruding for forming the finished product; in the step a, the length of one curved side is equal to the perimeter of one port of the finished product while the length of the other curved side is equal to the perimeter of the other port of the finished product. The thickness of the pipe is even by adopting the method, the finished product is not easily damaged and the product yield is high.
Description
Technical field
The present invention relates to a kind of car tail larynx pipe processing method.
Background technology
Car tail larynx is a kind of parts being arranged on the blast pipe tail end of automobile, it is except can preventing automobile tail gas pipe and being out of shape, can also play the effect of supercharging and flow-disturbing, thus the sound making the blast pipe of automobile send to a certain extent becomes slightly gentle and pleasing to the ear, reduces noise.
The caliber of the part that this pipe fitting of car tail larynx is generally connected with blast pipe is smaller, and the caliber of the other end is larger, and even the caliber of one end can than the caliber of the other end greatly more than one times.Processing of the prior art is generally utilize the pipe of fineness between the caliber of two ends, and draw technique is carried out in one end, and the other end carries out the technique of expander to produce this car tail larynx pipe fitting used.Adopt in this way, because the caliber gap at two ends is too large, very large probability causes the wall thickness reduction of tubing when expander or the draw too large and produces damaged, even if or not damaged, also the thickness of the pipe at two ends can be made comparatively large with the thickness disparity of middle pipe, and defective.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the defect of prior art, provides one and is not easy breakage, and the thickness of pipe uniform car tail larynx pipe processing method.
For solving the problems of the technologies described above, the present invention proposes a kind of car tail larynx pipe processing method, and it comprises the following steps:
A, stamp out on sheet stock one opposition both sides be the straight flange that length is equal, both sides are the sheet material of bent limit shape in addition, and the length on one of them bent limit is less than the length on another bent limit;
B, make two straight flanges laminatings by bending for sheet material, then welded together by two straight flanges, become tubular, the port forming one end is large, and other end port is little, sided seamless gap, and side is the semi-finished product of straight flange from Single port to the cross section on direction, another port;
Then semi-finished product are put into the mould with shape of product, after matched moulds, are squeezed into finished product by the burr of c, removal welding;
In described step a, the length on a bent limit equals the girth of a port of finished product, and the length on another bent limit equals the girth of another port of finished product.
After adopting said method, the present invention has the following advantages: the present invention utilizes sheet material, first cuts out the shape that the side that is similar to tail trunnion is launched, and then bending is welded into tubular, and then the semi-finished product of this tubular are put into mould, utilize the core rod of mould and cavity extruded.This method no longer needs the technique of the draw and expander, and owing to being adopt sheet material processing, the Thickness Ratio everywhere of pipe is comparatively even, and finished product is not easy breakage, and product percent of pass is high.
Accompanying drawing explanation
Fig. 1 is the sheet structure schematic diagram stamping out sheet material;
Fig. 2 is the half-finished structural representation formed after sheet material bends welding;
Fig. 3 is that the extruded structural representation of mould put into by mould and pipe fitting;
Fig. 4 is the structural representation of finished product.
As shown in the figure: 1, the first straight flange, the 2, second straight flange, the 3, first bent limit, the 4, second bent limit, 5, pipe fitting, 6, mould.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the invention provides a kind of car tail larynx pipe processing method, it comprises the following steps:
A, stamp out on sheet stock one opposition both sides be the straight flange that length is equal, both sides are the sheet material of bent limit shape in addition, and the length on one of them bent limit is less than the length on another bent limit;
Namely the first straight flange 1, second straight flange 2 shown in Fig. 1, first bent limit 3 and the second bent limit 4, the length of described first straight flange 1 is equal with the length of the second straight flange 2, the length on the first bent limit 3 is equal with the girth of the first port of finished product, the length on the second bent limit 4 is equal with the girth of the second port of finished product, in the present embodiment, the first port of finished product is osculum, and the second port is large mouth, and so the length on the first bent limit 3 is just less than the length on the second bent limit.
B, make two straight flanges laminatings by bending for sheet material, then welded together by two straight flanges, become tubular, the port forming one end is large, and other end port is little, sided seamless gap, and side is the semi-finished product of straight flange from Single port to the cross section on direction, another port;
Because sheet material is planar structure, so its cross section bending to half-finished side of tubular is straight flange, and namely refer to, half-finished side expands into plane, and obvious this shape with the finished product finally required or distinguishing.
Then semi-finished product are put into the mould with shape of product, after matched moulds, are squeezed into finished product by the burr of c, removal welding;
Semi-finished product are put into the mould with shape of product, by being squeezed into the shape required for product, now need bending half-finished side, because in previous step, the port section of pipe fitting completes, so in this mould, the port section of pipe fitting can not be subject to too large extruding, therefore the thickness of the pipe fitting of port section can keep level much the same with the thickness of sheet material, and the other parts of pipe fitting are squeezed be out of shape scope compared with semi-finished product, also less, therefore, the thickness of pipe fitting other parts does not have too large change yet.
The product of final formation, the Thickness Ratio everywhere of pipe fitting is more even.The port of the one end of the tail trunnion part that the application processes is the kidney-shaped mouth of pipe, and the mouth of pipe of the other end is also the kidney-shaped mouth of pipe, but the plane at two mouth of pipe places is not two planes be parallel to each other.Therefore man-hour is being added, the upper end of pipe fitting is needed to be clipped in the patrix of mould, by the lower end of mould with counterdie to corresponding, during mould matched moulds, promotion product moves downward, because the shape of the port below product is larger than the first half of counterdie, therefore, the lower port of product can't be squeezed, but the stage casing of product can be subject to the extruding of counterdie and produce distortion, because shape and the half-finished change in shape after distortion is little, therefore the thickness in stage casing can not change too greatly, until the lower port of product contacts with the latter half of counterdie.After matched moulds completes, because the lower port of product and the latter half of counterdie fit, although the shape of lower port changes, the girth of lower port does not change.Therefore the thickness of lower port part also can not change.
After adopting said method, the present invention has the following advantages: the present invention utilizes sheet material, first cuts out the shape that the side that is similar to tail trunnion is launched, and then bending is welded into tubular, and then the semi-finished product of this tubular are put into mould, utilize the core rod of mould and cavity extruded.This method no longer needs the technique of the draw and expander, and owing to being adopt sheet material processing, the Thickness Ratio everywhere of pipe is comparatively even, and finished product is not easy breakage, and product percent of pass is high.
Claims (2)
1. a car tail larynx pipe processing method, is characterized in that: it comprises the following steps:
A, stamp out on sheet stock one opposition both sides be the straight flange that length is equal, both sides are the sheet material of bent limit shape in addition, and the length on one of them bent limit is less than the length on another bent limit;
B, make two straight flanges laminatings by bending for sheet material, then welded together by two straight flanges, become tubular, the port forming one end is large, and other end port is little, sided seamless gap, and side is the semi-finished product of straight flange from Single port to the cross section on direction, another port;
Then semi-finished product are put into the mould with shape of product, after matched moulds, are squeezed into finished product by the burr of c, removal welding;
In described step a, the length on a bent limit equals the girth of a port of finished product, and the length on another bent limit equals the girth of another port of finished product.
2. car tail larynx pipe processing method according to claim 1, is characterized in that: the two ends of described each straight flange are equipped with protuberance, after the welding of c step completes, removes this protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559693.8A CN104476111B (en) | 2014-10-21 | 2014-10-21 | Processing method of car tail pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410559693.8A CN104476111B (en) | 2014-10-21 | 2014-10-21 | Processing method of car tail pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104476111A true CN104476111A (en) | 2015-04-01 |
| CN104476111B CN104476111B (en) | 2017-01-18 |
Family
ID=52750785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410559693.8A Active CN104476111B (en) | 2014-10-21 | 2014-10-21 | Processing method of car tail pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104476111B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0645528A1 (en) * | 1993-09-28 | 1995-03-29 | Metex Corporation | Flexible joint for automobile exhaust pipe |
| CN1473086A (en) * | 2000-09-06 | 2004-02-04 | 丰田自动车株式会社 | Hollow member ,manufacturing method, thereof, fluid distribution system using hollow member, and forming apparatus of hollow member |
| CN1849442A (en) * | 2003-05-22 | 2006-10-18 | 布雷恩公司 | Regeneration process for catalytic converters |
| CN101403349A (en) * | 2008-10-30 | 2009-04-08 | 贵州航天新力铸锻有限责任公司 | Jet engine exhausting pipe of high-speed locomotive and its near-net-shape casting method |
| CN101603449A (en) * | 2009-07-06 | 2009-12-16 | 奇瑞汽车股份有限公司 | A kind of vibration isolating device of vehicle exhaust system and manufacture method thereof |
| CN101818673A (en) * | 2010-04-20 | 2010-09-01 | 东莞市旗丰消声器有限公司 | Process for manufacturing muffler |
| CN101915149A (en) * | 2010-07-13 | 2010-12-15 | 宁波市江北保隆消声系统制造有限公司 | Four-way exhaust tail pipe and production method thereof |
| CN102933328A (en) * | 2010-05-19 | 2013-02-13 | 蒂森克虏伯钢铁欧洲股份公司 | Method for producing a hollow profiled section |
| CN103016862A (en) * | 2012-12-30 | 2013-04-03 | 浙江普利司汽车零部件有限公司 | Non-welded pipeline joint of automobile air conditioner and machining method of non-welded pipeline joint |
| CN103182624A (en) * | 2011-12-28 | 2013-07-03 | 上海日晗模具有限公司 | Machining technology of automobile vent-pipe |
| CN203114392U (en) * | 2013-03-19 | 2013-08-07 | 胡晓杭 | Exhaust pipe tail gas filtering and silencing exhause |
| CN103921065A (en) * | 2014-03-18 | 2014-07-16 | 泰州双羊精密无缝钢管有限公司 | Manufacturing method of vehicle seamless steel tubes |
-
2014
- 2014-10-21 CN CN201410559693.8A patent/CN104476111B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0645528A1 (en) * | 1993-09-28 | 1995-03-29 | Metex Corporation | Flexible joint for automobile exhaust pipe |
| CN1473086A (en) * | 2000-09-06 | 2004-02-04 | 丰田自动车株式会社 | Hollow member ,manufacturing method, thereof, fluid distribution system using hollow member, and forming apparatus of hollow member |
| CN1849442A (en) * | 2003-05-22 | 2006-10-18 | 布雷恩公司 | Regeneration process for catalytic converters |
| CN101403349A (en) * | 2008-10-30 | 2009-04-08 | 贵州航天新力铸锻有限责任公司 | Jet engine exhausting pipe of high-speed locomotive and its near-net-shape casting method |
| CN101603449A (en) * | 2009-07-06 | 2009-12-16 | 奇瑞汽车股份有限公司 | A kind of vibration isolating device of vehicle exhaust system and manufacture method thereof |
| CN101818673A (en) * | 2010-04-20 | 2010-09-01 | 东莞市旗丰消声器有限公司 | Process for manufacturing muffler |
| CN102933328A (en) * | 2010-05-19 | 2013-02-13 | 蒂森克虏伯钢铁欧洲股份公司 | Method for producing a hollow profiled section |
| CN101915149A (en) * | 2010-07-13 | 2010-12-15 | 宁波市江北保隆消声系统制造有限公司 | Four-way exhaust tail pipe and production method thereof |
| CN103182624A (en) * | 2011-12-28 | 2013-07-03 | 上海日晗模具有限公司 | Machining technology of automobile vent-pipe |
| CN103016862A (en) * | 2012-12-30 | 2013-04-03 | 浙江普利司汽车零部件有限公司 | Non-welded pipeline joint of automobile air conditioner and machining method of non-welded pipeline joint |
| CN203114392U (en) * | 2013-03-19 | 2013-08-07 | 胡晓杭 | Exhaust pipe tail gas filtering and silencing exhause |
| CN103921065A (en) * | 2014-03-18 | 2014-07-16 | 泰州双羊精密无缝钢管有限公司 | Manufacturing method of vehicle seamless steel tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104476111B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101549384B (en) | Roll forging technology for producing roll forging parts with length exceeding maximum permissible length of roll forging machine | |
| CN109202380A (en) | The whole cold upsetting production technique of automobile-used ball joint | |
| JP6394254B2 (en) | Manufacturing method and manufacturing apparatus for expanded diameter pipe parts | |
| CN104209447A (en) | Cold-heading device for irregular connecting rod and production technique thereof | |
| CN103495838A (en) | Irrigation extrusion process of abnormal-shaped tee pipes for air conditioner and pipe fittings manufactured according to irrigation extrusion process | |
| CN207325618U (en) | The cold-drawn turntable of steel pipe | |
| CN104399862A (en) | Technology for producing R-shaped spherical metal joint | |
| CN104476111B (en) | Processing method of car tail pipe | |
| CN103447770B (en) | Method for manufacturing pipe clamp, pipe clamp and pipeline | |
| CN103706660A (en) | Aluminum profile extruding die sleeve | |
| CN104325292B (en) | A kind of car tail larynx pipe processing method | |
| CN105268761A (en) | Large-diameter thick-walled longitudinal submerged-arc welding pipe based on J-forming C-forming O-forming and Compression to make round (JCOC) forming process | |
| CN103343615A (en) | Scaffold vertical rod buckle plate and production die and manufacturing process of scaffold vertical rod buckle plate | |
| CN107877935B (en) | Paper tube conical bottom die | |
| CN102366766A (en) | Hot extrusion mold for producing profile for electrified high-speed railway feedback line clamps | |
| CN104128744A (en) | Reducing process for producing T iron by cold forging | |
| CN204358281U (en) | Reinforced steel plastic composite helical bellows | |
| CN103302175A (en) | Method for producing seamless punched elbow | |
| CN105081046B (en) | Hydroforming flexible seal device | |
| CN203817151U (en) | Special-shaped punching rod capable of solving metal streamlinefault in inner hole of steel pipe | |
| CN103157726B (en) | Pipe joint expanded joint expansion set mould | |
| CN104209700A (en) | Production technique for irregular pipeline connector | |
| CN103126216A (en) | Pneumatic compression molding and pressurization deformation-resistant manufacturing technology of ornaments | |
| CN204545135U (en) | Automotive brake fluid pipe connector servo cold-punching mould | |
| CN203316609U (en) | Elbow die used for seamless punched elbow production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315171 Zhejiang city of Ningbo province Yinzhou District jishigang town jcair Road No. 688 Patentee after: NINGBO SIMING AUTOMOBILE TECHNOLOGY CO., LTD. Address before: 315176 Ningbo Province, Yinzhou District Spring Industrial Park Road, Cai Cai road, No. 688 Patentee before: NINGBO SIMING AUTOMOBILE TECHNOLOGY CO., LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.688 Jucai Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO SIMING AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: No. 688, Jucai Road, jishigang Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO SIMING AUTOMOBILE TECHNOLOGY Co.,Ltd. |