CN106493204A - A kind of bend pipe control forming method with regard to bending machine - Google Patents
A kind of bend pipe control forming method with regard to bending machine Download PDFInfo
- Publication number
- CN106493204A CN106493204A CN201610993717.XA CN201610993717A CN106493204A CN 106493204 A CN106493204 A CN 106493204A CN 201610993717 A CN201610993717 A CN 201610993717A CN 106493204 A CN106493204 A CN 106493204A
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- China
- Prior art keywords
- bending machine
- bend pipe
- bending
- control valve
- straight tube
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Classifications
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- 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
- B21D9/15—Bending tubes using mandrels or the like using filling material of indefinite shape, e.g. sand, plastic material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of bend pipe control forming method with regard to bending machine, including straight tube and bending machine as raw material, also comprises the steps, step 1：Take out one and save straight tube, and implant will be added inside straight tube, be put in grinding tool；Step 2：Control valve is opened, fixation clamps are unclamped, the tight feeding of movement clamp, fixation clamps are clamped, mobile pincers unclamp reset, bending machine works；Step 3：After bending machine bends 5 times, closing control valve becomes flat situation on the outside of observation circular arc；Step 4：If bend pipe is normal, continue to open control valve, bending machine is cut after bending 3 times；The height of bend pipe and tube seat axis if bend pipe is abnormal, being adjusted, then opening control valve, and some resistance when straight tube bends is kept out by boosting, bending machine is cut after bending 3 times；Step 5：After stable cooling to be deformed, implant is taken out, pipe bends and completes.
Description
Technical field
The present invention relates to a kind of bend pipe controls forming method, and in particular to a kind of bend pipe control molding side with regard to bending machine
Method.
Background technology
Bending machine is mainly used in the bending of the steel pipes such as power construction, boiler, bridge, bending machine ship, decoration, with function
Many, rational in infrastructure, simple operation and other advantages.Machine is in addition to possessing bend pipe function, moreover it is possible to using oil cylinder as hydraulic jack
Use, there is low price for numerical controlled bending of pipe equipment, the characteristics of easy to use, bending machine market occupies master at home
Lead product space.Bending machine carries out the bending of tubing as the bending of plate.In the case of pure bending, moment of face received by pipe
Effect when bending, tube wall tension stress effect on the outside of neutral line, tube wall are thinning；On the inside of neutral line, tube wall tension stress is made
With tube wall is thickening.And the shape of cross section due to by make a concerted effort effect approximate ellipsoidal is changed into from circle, when deflection excessive
When, outside tube wall can be cracked, and inner side tube wall occurs corrugation.The deformation extent of tubing, depending on relative bending radius and
The size of relative thickness numerical value, for ensureing pipe fitting forming quality, it is necessary to control deformation extent in tolerance band, bending pipes into
The shape limit depends not only on the mechanical property of material and bending method, and further contemplates the use requirement of pipe fitting.The shaping of pipe fitting
The limit should include following content：On the outside of neutral line, maximum elongation strain in stretcher strain area is allowed less than material plasticity
It is worth and produces rupture；In neutral line inboard compression deformed area, the thin-wall construction part acted on by circumferential compressive force will not exceed mistake
Surely wrinkle；If pipe fitting has the requirement of ovality, control its section and produce distortion；If pipe fitting has bears the strong of interior pressure
When degree is required, the forming limit of its wall thickness reduction is controlled.
Content of the invention
When the technical problem to be solved is that the bending machine of prior art is bent to thin-walled square tube, mostly adopt
With traditional bend pipe mode, it is thinning easily to occur tube wall during bending, and the phenomenon such as corrugation, it is impossible to ensure bend pipe well
Quality, if ensureing crudies using other methods, but process velocity is slow, it is therefore intended that provide one kind with regard to bending machine
Bend pipe control forming method, solve the bending machine of prior art when bending to thin-walled square tube, mostly using traditional curved
Pipe mode, it is thinning easily to occur tube wall during bending, and the phenomenon such as corrugation, it is impossible to ensure the quality of bend pipe well, if
Ensure crudy, but the slow problem of process velocity using other methods.
The present invention is achieved through the following technical solutions：
A kind of bend pipe control forming method with regard to bending machine, including straight tube and bending machine as raw material, also includes following step
Suddenly, step 1：Take out one and save straight tube, and implant will be added inside straight tube, be put in grinding tool；Step 2：Control valve is opened, fixed
Pincers unclamp, and the tight feeding of movement clamp, fixation clamps are clamped, and mobile pincers unclamp reset, and bending machine works；Step 3：Bending machine bending 5
After secondary, closing control valve becomes flat situation on the outside of observation circular arc；Step 4：If bend pipe is normal, continue to open control valve, bending machine is curved
Cut after bent 3 times；The height of bend pipe and tube seat axis if bend pipe is abnormal, is adjusted, then opens control valve, and supported by boosting
Some resistance when gear straight tube bends, bending machine are cut after bending 3 times；Step 5：After stable cooling to be deformed, implant is taken out,
Pipe bends and completes.When bending machine in order to solve prior art is bent to thin-walled square tube, traditional bend pipe is mostly adopted
Mode, it is thinning easily to occur tube wall during bending, and the phenomenon such as corrugation, it is impossible to ensure the quality of bend pipe well, if making
Ensure that crudy, but the slow problem of process velocity, the present invention devise 5 steps with other methods, and curved
Pipe method is fairly simple, can solve the problem that the thinning and corrugated problem of tube wall, and also fairly simple due to operating, therefore efficiency also compares
High
Implant in the step 1, is rubber or flexible plastic.Implant may be selected rubber or flexible plastic, also may be selected
Other have some tension, and soft material is used as implant, but must assure that filling consolidation, just can guarantee that uniform force
Tube seat in the step 4, using hyp reversible deformation tube seat, this is in order that can obtain ideal after straight tube bending
Ovality, more tend to reasonable using the flute profile of hyp reversible deformation tube seat.
The present invention compared with prior art, has the following advantages and advantages：
1st, a kind of bend pipe control forming method with regard to bending machine of the present invention, bending method are fairly simple, can solve the problem that tube wall becomes
Thin and corrugated problem, also fairly simple due to operating, therefore efficiency is also higher；
2nd, a kind of bend pipe control forming method with regard to bending machine of the present invention, observation in BENDING PROCESS adjust, it is to avoid processing
After the completion of check unqualified, to cause waste, during regulation can eliminate in advance and overcome one's shortcomings；
3rd, a kind of bend pipe control forming method with regard to bending machine of the present invention, implant may be selected rubber or flexible plastic, also may be used
Select other that there is some tension, and soft material is used as implant, but must assure that filling consolidation, just can guarantee that stress is equal
Even, reduce tube wall thickness on the outside of straight tube.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment, to present invention work
Further detailed description, the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, are not intended as to originally
The restriction of invention.
Embodiment
A kind of bend pipe control forming method with regard to bending machine of the present invention, including the straight tube as raw material and adopts hyperbola
Reversible deformation tube seat bending machine, also comprise the steps, step 1：Take out one and save straight tube, and rubber will be added inside straight tube,
It is put in grinding tool；Step 2：Control valve is opened, fixation clamps are unclamped, the tight feeding of movement clamp, fixation clamps are clamped, mobile pincers unclamp again
Position, bending machine work；Step 3：After bending machine bends 5 times, closing control valve becomes flat situation on the outside of observation circular arc；Step 4：If
Bend pipe is normal, continues to open control valve, and bending machine is cut after bending 3 times；If bend pipe is abnormal, bend pipe and tube seat axis is adjusted
Highly, then control valve being opened, and some resistance when straight tube bends being kept out by boosting, bending machine is cut after bending 3 times；Step
Rapid 5：After stable cooling to be deformed, implant is taken out, pipe bends and completes.In order to solve the bending machine of prior art to thin-walled side
When pipe is bent, mostly using traditional bend pipe mode, it is thinning easily to occur tube wall during bending, and corrugation etc. is existing
As, it is impossible to ensure well the quality of bend pipe, if ensure crudies using other methods, but process velocity is slow asks
Topic, the present invention devises 5 steps, and bending method is fairly simple, can solve the problem that the thinning and corrugated problem of tube wall,
Also fairly simple due to operating, therefore efficiency is also higher.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, the be should be understood that specific embodiment that the foregoing is only the present invention is not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements that within the spirit and principles in the present invention, is done etc. all should include
Within protection scope of the present invention.
Claims (3)
1. a kind of bend pipe with regard to bending machine controls forming method, including straight tube and bending machine as raw material, it is characterised in that：
Also comprise the steps,
Step 1：Take out one and save straight tube, and implant will be added inside straight tube, be put in grinding tool；
Step 2：Control valve is opened, fixation clamps are unclamped, the tight feeding of movement clamp, fixation clamps are clamped, mobile pincers unclamp reset, bend pipe
Machine works；
Step 3：After bending machine bends 5 times, closing control valve becomes flat situation on the outside of observation circular arc；
Step 4：If bend pipe is normal, continue to open control valve, bending machine is cut after bending 3 times；If bend pipe is abnormal, bend pipe is adjusted
With the height of tube seat axis, then control valve being opened, and some resistance when pipe bends being kept out by boosting, bending machine bends
Cut after 3 times；
Step 5：After stable cooling to be deformed, implant is taken out, straight tube bends and completes.
2. a kind of bend pipe with regard to bending machine according to claim 1 controls forming method, it is characterised in that：The step
Implant in 1, is rubber or flexible plastic.
3. a kind of bend pipe with regard to bending machine according to claim 1 controls forming method, it is characterised in that：The step
Tube seat in 4, using hyp reversible deformation tube seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993717.XA CN106493204A (en) | 2016-11-11 | 2016-11-11 | A kind of bend pipe control forming method with regard to bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993717.XA CN106493204A (en) | 2016-11-11 | 2016-11-11 | A kind of bend pipe control forming method with regard to bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106493204A true CN106493204A (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610993717.XA Pending CN106493204A (en) | 2016-11-11 | 2016-11-11 | A kind of bend pipe control forming method with regard to bending machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5874218A (en) * | 1981-10-27 | 1983-05-04 | Mitsubishi Heavy Ind Ltd | Bending method of pipe |
| CN1559717A (en) * | 2004-03-04 | 2005-01-05 | 张先荣 | Method for correcting workpiece crosssection shape of pipe bended by pipe bending machine |
| CN102228922A (en) * | 2011-04-20 | 2011-11-02 | 桂林电子科技大学 | Method for bending and forming metal pipe by placing steel balls inside |
| CN103316974A (en) * | 2013-06-20 | 2013-09-25 | 新疆磐石钢材科技有限公司 | Pipe bending method of pipe bending machine |
| CN103331348A (en) * | 2013-07-18 | 2013-10-02 | 西安东风仪表厂 | Bending method for thin-walled steel pipe with rectangular section |
-
2016
- 2016-11-11 CN CN201610993717.XA patent/CN106493204A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5874218A (en) * | 1981-10-27 | 1983-05-04 | Mitsubishi Heavy Ind Ltd | Bending method of pipe |
| CN1559717A (en) * | 2004-03-04 | 2005-01-05 | 张先荣 | Method for correcting workpiece crosssection shape of pipe bended by pipe bending machine |
| CN102228922A (en) * | 2011-04-20 | 2011-11-02 | 桂林电子科技大学 | Method for bending and forming metal pipe by placing steel balls inside |
| CN103316974A (en) * | 2013-06-20 | 2013-09-25 | 新疆磐石钢材科技有限公司 | Pipe bending method of pipe bending machine |
| CN103331348A (en) * | 2013-07-18 | 2013-10-02 | 西安东风仪表厂 | Bending method for thin-walled steel pipe with rectangular section |
Non-Patent Citations (2)
| Title |
|---|
| 刘继申等: "《热力设备装配与检修》", 31 January 2009, 中国电力出版社 * |
| 鄂大辛等: "《金属管材弯曲理论及成形缺陷分析》", 31 January 2016, 北京理工大学出版社 * |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170315 |