CN105798114A - Bend machining process - Google Patents
Bend machining process Download PDFInfo
- Publication number
- CN105798114A CN105798114A CN201610097706.3A CN201610097706A CN105798114A CN 105798114 A CN105798114 A CN 105798114A CN 201610097706 A CN201610097706 A CN 201610097706A CN 105798114 A CN105798114 A CN 105798114A
- Authority
- CN
- China
- Prior art keywords
- elbow
- compressing
- concatemer
- cutting
- processing technique
- 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.)
- Pending
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Classifications
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D26/037—Forming branched tubes
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a bend machining process. The bend machining process comprises the steps of pressing forming and cutting. According to the step of pressing forming, a multi-connecting-body bend blank material is adopted for pressing forming. According to the step of cutting, multiple blades are used for cutting and forming. According to the bend machining process, a multi-connecting-body bend pressing mold is used for pressing forming, and a bend with seven connecting bodies or nine connecting bodies or more connecting bodies can be formed through pressing at a time; meanwhile, the multiple blades are used for cutting, so that the pressure bending forming efficiency of a bend pipe fitting is improved by 20 times or above, and the labor intensity can be greatly relieved.
Description
Technical field
The present invention relates to pipe fitting processing technique field, be specifically related to a kind of elbow processing technique.
Background technology
Progress and expanding economy along with society, fluid line is widely used in every field, its consumption can be rated as basic part, the elbow consumption as fluid line connecting portion is also increasing, imbalance between supply and demand is more and more prominent, improves production efficiency and becomes industry problem demanding prompt solution.The structure of pipeline connecting bend is generally divided into weld ell and molding elbow, and straight tube material is usually first cut into inclined-plane pipe nipple by the angle of elbow by weld ell, then two or more pipe nipples is docked welding fabrication；And molding elbow be usually by straight tube or straight tube pipe nipple on forcing press compressing or on bending machine mechanical bend, then by two ends excision forming.Traditional elbow-making adopts single piece pressure brake forming mostly.Why adopt single piece pressure brake forming, mainly due to the plasticity of elbow material, in pressure brake forming process, often produce local deformation, thus after extrusion forming, it usually needs by carrying out shaping inside elbow.And the method for shaping at present is to adopt to fill in bend pipe with the steel ball being slightly smaller than elbow internal diameter, more slowly steel ball is passed to the other end by bend pipe one end with push rod.This method not only shaping speed is extremely slow, more importantly cannot be once compressing to the concatemer elbow of multiple bendings.Therefore, above-mentioned bending molding process makes production efficiency low, and quality also is difficult to be ensured reliably.
Summary of the invention
It is high that problem to be solved by this invention is to provide a kind of production efficiency, and can guarantee that the elbow processing technique of quality.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of elbow processing technique, and including compressing and cutting, described compressing employing concatemer elbow blank is compressing.
Described cutting adopts multi-blade excision forming.
The cutting of described multi-blade is to be placed in concatemer bended head cutting mold by compressing concatemer elbow blank, and adopts cutting equipment to carry out.
The compressing employing concatemer elbow forming die of described concatemer elbow blank is once pressed into concatemer elbow blank on forcing press.
Described concatemer elbow blank adopts pressurize compressing or pressurizes compressing in pipe:
A. pressurize is compressing: carry out under the sealing state of tubing two ends to be pressed in pressing process；
B. in pipe, pressurization is compressing: seals at tubing two ends to be pressed in pressing process and adopts to inject under high-pressure fluid pressurized state and carries out.
The compressing pressurize 1-30min after pressing process terminates of described pressurize.
The compressing middle injection fluid pressure that pressurizes in described pipe is 1-100MPa, and pressing process terminates rear pressurize 1-30min.
The invention has the beneficial effects as follows:
1) the elbow processing technique of the present invention adopts concatemer elbow compacting tool set compressing, can once carry out the once compressing of 7 disjunctors, 9 disjunctors or more integral angle head, adopt multi-blade cutting simultaneously, so that the efficiency of bend pipe tools pressure brake forming improves more than 20 times, and labor intensity is greatly reduced；
2) adopt pressure-keeping mechanism to carry out the brake forming of concatemer elbow under packing state, it is to avoid the local deformation of elbow in compressing process, thus saving trimming then, saving bend forming process time, also saving man power and material accordingly；
3) after compressing, pressurization integer is adopted, it is possible to effectively ensure elbow crudy compared with prior art to increase substantially production efficiency；
4) fluid-pressurized mechanism is adopted, the pressure brake forming of elbow is carried out, it is possible to reliably stop concatemer elbow local deformation in bending, it is ensured that the quality that elbow is compressing when tubular body pressurizes, and save integer operation, it is possible to improve production efficiency further.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
Embodiment one
The elbow processing technique of present embodiment, including compressing and cutting, described compressing employing concatemer elbow blank is compressing, and cutting adopts multi-blade cutting.Concrete grammar can carry out in the steps below:
1) compressing: straight tube material is put on the die cavity intrinsic pressure machine of concatemer elbow forming die with reference to the size of elbow be once pressed into 7 elbow disjunctors or 9 elbow disjunctors or ... or the concatemer elbow blank of 20 elbow disjunctors.Certainly, diameter according to concatemer elbow, it is possible to adopt multiple concatemer elbow forming die to put parallel, or multiple die cavity is set at multiple concatemer elbow forming dies, once suppress multiple concatemer elbow blank, so can obtain higher production efficiency.
2) concatemer elbow blank integer: adopt conventional method integer, certainly may be used without a kind of method that the patent name of applicant's separate case application is " compacting elbow shaping method and device " and carries out integer；
3) multi-blade cutting: compressing concatemer elbow blank is placed in concatemer bended head cutting mold, and adopt cutting equipment to carry out, specifically can adopt the channel bend cutter sweep of applicant's separate case application, patent name is " a kind of channel bend cutter sweep ", or adopts the name of applicant's separate case application to be called that the equipment of " concatemer pipe fitting automatic cutting device " cuts.The production efficiency of elbow can be improved 10 times of even decades of times by the method for present embodiment.
Embodiment two
The elbow processing technique of present embodiment, including compressing and cutting, described compressing employing concatemer elbow blank is compressing, and cutting adopts multi-blade cutting.Concrete grammar can carry out in the steps below:
1) seal: first tubing two ends to be pressed are carried out closure and seals；Described closure seals the fast-assembling pipeline sealing device that can adopt applicant's separate case application, patent name is " a kind of fast-assembling pipeline sealing device ", may be used without the self-expansion type pipeline sealing device of applicant's separate case application, patent name is " a kind of self-expansion type pipeline sealing device ", very convenient fast, the structure of fast-assembling pipeline sealing device and self-expansion type pipeline sealing device repeats no more；
2) compacting: the tubing implemented after sealing is inserted in employing concatemer elbow module and pressurizeed by forcing press；Certainly, double molds can be may be used without according to the size of compacting elbow or multiple mould is suppressed simultaneously, once suppress many concatemer elbow blanks, owing to tube wall is had certain supporting role by the air in tubing in pressing process, so being not likely to produce local deformation；
3) pressurize: suppress, at forcing press, the follow-up continuation of insurance pressure 1min that puts in place, then remove the plugging mechanism at two ends, press ram is risen, and drives the upper mould of concatemer elbow module to separate with counterdie, namely obtain molding concatemer bend forming blank；
4) multi-blade cutting: compressing concatemer bend forming blank is placed in concatemer bended head cutting mold, and adopt cutting equipment to carry out, specifically can adopt the channel bend cutter sweep of applicant's separate case application, patent name is " a kind of channel bend cutter sweep ", or adopts the name of applicant's separate case application to be called that the equipment of " concatemer pipe fitting automatic cutting device " cuts.The method of present embodiment
In present embodiment, the elbow processing technique of present embodiment is applicable to the wall thickness processing at the elbow of below 2mm, adopt the pressure brake forming of elbow under packing state, can once compressing multiple bend forming blank or many concatemer bend forming blanks, the production efficiency of elbow can improve decades of times, and the local deformation being avoided that in forming process elbow.
Embodiment three
The elbow processing technique of the present invention, essentially identical with embodiment two, it differs only in, and in described step 3), the dwell time is 20min, and in present embodiment, the elbow processing technique of present embodiment is applicable to the wall thickness processing at the elbow of 2-4mm.
Embodiment four
The elbow processing technique of the present invention, essentially identical with embodiment two, it differs only in, and in described step 3), the dwell time is 30min, and in present embodiment, the elbow processing technique of present embodiment is applicable to the wall thickness processing at 4mm and above elbow.
Embodiment five
The elbow processing technique of present embodiment, including compressing and cutting, described compressing employing concatemer elbow blank is compressing, and cutting adopts multi-blade cutting.Concrete grammar can carry out in the steps below:
1) pressurization in pipe: tubing two ends to be pressed first carrying out closure and seals, and at one end inject high-pressure fluid, described high-pressure fluid can adopt gases at high pressure, it is possible to adopts high-voltage oil liquid or water under high pressure, and the pressure injecting fluid can be 1MPa；Described closure seals the fast-assembling pipeline sealing device that can adopt applicant's separate case application, patent name is " a kind of fast-assembling pipeline sealing device ", may be used without the self-expansion type pipeline sealing device of applicant's separate case application, patent name is " a kind of self-expansion type pipeline sealing device ", very convenient fast, the structure of fast-assembling pipeline sealing device and self-expansion type pipeline sealing device repeats no more；
4) compacting: the tubing implemented after sealing note pressure is inserted in employing concatemer elbow module and is pressurizeed by forcing press；Certainly, double molds can be may be used without according to the size of compacting elbow or multiple mould is suppressed simultaneously, once suppress many concatemer elbow blanks, due to the supporting role to tube wall of the tubing inner high voltage fluid in pressing process, so the local deformation of tube wall can be effectively prevented, it is not necessary to carry out follow-up integer；
5) pressurize: suppress, at forcing press, the follow-up continuation of insurance pressure 1min that puts in place, then remove the closure at two ends, injection molding machine structure, press ram is risen, and drives the upper mould of concatemer elbow module to separate with counterdie, namely obtain molding concatemer bend forming blank；
5) multi-blade cutting: compressing concatemer bend forming blank is placed in concatemer bended head cutting mold, and adopt cutting equipment to carry out, specifically can adopt the channel bend cutter sweep of applicant's separate case application, patent name is " a kind of channel bend cutter sweep ", or adopts the name of applicant's separate case application to be called that the equipment of " concatemer pipe fitting automatic cutting device " cuts.
The elbow processing technique of present embodiment is applicable to the wall thickness processing at the elbow of below 2mm,
Embodiment six
The elbow processing technique of present embodiment is essentially identical with embodiment five, differs only in, and in described step 1), the pressure injecting high-pressure fluid can be 50MPa, and in described step 3), pressing process terminates rear pressurize 20min；Dwell time is 30min.In present embodiment, the elbow processing technique of present embodiment is applicable to the wall thickness processing at 2-5mm elbow.
Embodiment seven
The elbow processing technique of present embodiment is essentially identical with embodiment five, differs only in, and in described step 1), the pressure injecting high-pressure fluid can be 100MPa, and in described step 3), pressing process terminates rear pressurize 20min；Dwell time is 30min.In present embodiment, the elbow processing technique of present embodiment is applicable to the wall thickness processing at 4mm and above elbow.
Although above, presently preferred embodiments of the present invention is described, so that principles and applications to be described, it is to be understood that the present invention otherwise can realize on the basis not necessarily depart from these principles.
Claims (7)
1. an elbow processing technique, it is characterised in that: including compressing and cutting, described compressing employing concatemer elbow blank is compressing.
2. elbow processing technique as claimed in claim 1, it is characterised in that: described cutting adopts multi-blade excision forming.
3. elbow processing technique as claimed in claim 2, it is characterised in that: the cutting of described multi-blade is to be placed in concatemer bended head cutting mold by compressing concatemer elbow blank, and adopts cutting equipment to carry out.
4. elbow processing technique as claimed in claim 1, it is characterised in that: the compressing employing concatemer elbow forming die of described concatemer elbow blank is once pressed into concatemer elbow blank on forcing press.
5. the elbow processing technique as described in claim 1 or 4, it is characterised in that: described concatemer elbow blank adopts pressurize compressing or pressurizes compressing in pipe:
Pressurize is compressing: carry out under the sealing state of tubing two ends to be pressed in pressing process；
B. in pipe, pressurization is compressing: seals at tubing two ends to be pressed in pressing process and adopts to inject under high-pressure fluid pressurized state and carries out.
6. elbow processing technique as claimed in claim 5, it is characterised in that: the compressing pressurize 1-30min after pressing process terminates of described pressurize.
7. elbow processing technique as claimed in claim 5, it is characterised in that: the compressing middle injection fluid pressure that pressurizes in described pipe is 1-100MPa, and pressing process terminates rear pressurize 1-30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097706.3A CN105798114A (en) | 2016-02-23 | 2016-02-23 | Bend machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097706.3A CN105798114A (en) | 2016-02-23 | 2016-02-23 | Bend machining process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105798114A true CN105798114A (en) | 2016-07-27 |
Family
ID=56465817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610097706.3A Pending CN105798114A (en) | 2016-02-23 | 2016-02-23 | Bend machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105798114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940785B1 (en) * | 1969-05-28 | 1974-11-05 | ||
| JPS6440121A (en) * | 1987-05-06 | 1989-02-10 | T I Canada Inc | Method of molding box-shaped frame member |
| CN201076884Y (en) * | 2007-09-14 | 2008-06-25 | 史永顺 | Automatic bending mould for water ripple thin-walled copper-aluminium elbow |
| CN102616278A (en) * | 2012-04-10 | 2012-08-01 | 北京汽车股份有限公司 | Vehicle front fingerboard and forming method thereof |
| CN103753118A (en) * | 2013-12-09 | 2014-04-30 | 北京航星机器制造有限公司 | Bending method of large-diameter thin-wall aluminum pipe and die |
| KR20140065072A (en) * | 2012-11-21 | 2014-05-29 | 한국기계연구원 | Vending apparatus for pipe |
| CN204866958U (en) * | 2015-08-06 | 2015-12-16 | 哈尔滨锅炉厂有限责任公司 | Continuous many elbows one shot forming return bend mould of small -bore light -wall pipe |
-
2016
- 2016-02-23 CN CN201610097706.3A patent/CN105798114A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940785B1 (en) * | 1969-05-28 | 1974-11-05 | ||
| JPS6440121A (en) * | 1987-05-06 | 1989-02-10 | T I Canada Inc | Method of molding box-shaped frame member |
| CN201076884Y (en) * | 2007-09-14 | 2008-06-25 | 史永顺 | Automatic bending mould for water ripple thin-walled copper-aluminium elbow |
| CN102616278A (en) * | 2012-04-10 | 2012-08-01 | 北京汽车股份有限公司 | Vehicle front fingerboard and forming method thereof |
| KR20140065072A (en) * | 2012-11-21 | 2014-05-29 | 한국기계연구원 | Vending apparatus for pipe |
| CN103753118A (en) * | 2013-12-09 | 2014-04-30 | 北京航星机器制造有限公司 | Bending method of large-diameter thin-wall aluminum pipe and die |
| CN204866958U (en) * | 2015-08-06 | 2015-12-16 | 哈尔滨锅炉厂有限责任公司 | Continuous many elbows one shot forming return bend mould of small -bore light -wall pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
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| PB01 | Publication | ||
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Application publication date: 20160727 |