CN101885025B - Tube drawing method for drawing inner right angle on barrel or tube - Google Patents
Tube drawing method for drawing inner right angle on barrel or tube Download PDFInfo
- Publication number
- CN101885025B CN101885025B CN2010102376317A CN201010237631A CN101885025B CN 101885025 B CN101885025 B CN 101885025B CN 2010102376317 A CN2010102376317 A CN 2010102376317A CN 201010237631 A CN201010237631 A CN 201010237631A CN 101885025 B CN101885025 B CN 101885025B
- Authority
- CN
- China
- Prior art keywords
- extracting
- pipe
- tube
- heating
- staving
- 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.)
- Active
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a tube drawing method for drawing an inner right angle on a barrel or a tube, which is characterized by comprising the following steps of: firstly, drilling a hole of which the diameter is 1/3 of the inner diameter of a final drawn tube on the barrel or tube; secondly, performing local heating on the periphery of the drilled hole, wherein the heating temperature does not exceed austenitic stress temperature of the material serving as an upper limit, and the heating range does not exceed 2 times the excircle area of the final drawn tube; thirdly, immediately punching a drawn tube blank (6) of which an inner angle is arc-shaped by using a top cylinder (1) and a punch head (2); fourthly, repeating the second step, and heating the drawn tube blank (6) and the peripheral materials thereof; and fifthly, after heating, making the drawn tube blank (6) generate plastic deformation under the combined action of a tubular upper punch head (9), a core rod (7) and an inner die (8), and finally obtaining the drawn tube (10) of which the inner angle is a right angle. The tube drawing method has the advantages of high intensity, no need of reinforcement operation, and high production efficiency.
Description
Technical field
The present invention relates to a kind of processing method of tube connector, especially a kind of drawing method of directly extracting tube connector on staving or body is specifically a kind ofly extracted the drawing method that interior angle is the right angle on staving or body.
Background technology
Staving or body tube drawing technology are widely used in the interface of various pressure pipings and high pressure staving equipment at present, because extracting mouth is integral type with body or staving, pipeline or device ' have been improved greatly, but its maximum shortcoming is to extract mouth to have a bigger inner arc (see figure 1) of radius and cause the body opening diameter to become big, lowered body intensity, also increased great difficulty, thereby be unfavorable for the safety of integral device to extracting a mouthful intensity reinforcement.
Summary of the invention
The objective of the invention is to have bigger inner arc between pipe and the body at existing extracting, cause intensity to descend, the problem of reinforcement difficulty is invented a kind of drawing method that interior angle is the right angle of extracting on staving or body.
Technical scheme of the present invention is:
A kind ofly on staving or body, extract the drawing method that interior angle is the right angle, it is characterized in that it may further comprise the steps:
At first, on staving or body, get out a diameter for finally extracting the hole of bore 1/3;
Secondly, institute hole carry out local heat on every side, heating-up temperature is no more than material austenite strain temperature, and heated perimeter is no more than finally extracts 2 times that manage the cylindrical area;
The 3rd, utilize immediately after heating finishes take blame for others 1 and drift 2 outwards rush to summit from the inside of staving or body 3, simultaneously hole and install and fix patrix 5 on 4, the diameter of drift 2 and the internal diameter of finally extracting pipe are matched, the internal diameter of patrix 5 and the external diameter of finally extracting pipe are matched, so that the pipe of extracting that drift 2 ejects is limited in the patrix 5, obtains curved the extracting of interior angle and manage blank 6;
The 4th, repeat second content that goes on foot, heat extracting pipe blank 6 and periphery material thereof;
The 5th, after heating finishes, earlier in extracting the pipe blank hole plug-in mounting with finally extract the plug 7 that bore matches, extracting the pipe position in staving or body 3 installs the internal mold that matches with staving or body 3 inwalls 8 additional and 1 withstands with taking blame for others, in patrix 5, install simultaneously tubulose upper punch 9 additional, tubulose upper punch 9 is pressed down force and extract pipe hair bad 6 and under the acting in conjunction of tubulose upper punch 9, plug 7 and internal mold 8 plastic deformation takes place, what finally obtain interior angle and be the right angle extracts pipe 10.
Described plug 7 links to each other with 1 integral body of taking blame for others, and its upper end slightly exceeds the peak of extracting pipe.
Beneficial effect of the present invention:
(1) the present invention has improved the general safety performance of extracting tube apparatus or pipeline, and the intensity height need not follow-up reinforcement technology, has improved production efficiency greatly.
(2) the present invention can be lowered equipment or pipeline to extracting the requirement of mouthful thickness or height, thereby improves the yield rate of extracting mouthful technology, lowers production cost.
(3) the inventive method is simple, and the efficient height not only can not cause damage to bulk material, and owing to adopted the secondary plastic deformation, makes the intensity of extracting the pipe part material greater than body intensity.
Description of drawings
Fig. 1 is the existing structural representation of extracting pipe.
Fig. 2 is a structural representation of extracting pipe of the present invention.
Fig. 3 is a bore process schematic diagram of the present invention.
Fig. 4 is the pipe blank process schematic diagram of extracting of the present invention.
Fig. 5 is the final forming process schematic diagram of pipe of extracting of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Shown in Fig. 3-5.
Be that example adds that the present invention is further illustrated to carry out tube drawing on stainless steel tube or the stainless steel cask below, other material can be with reference to carrying out.
A kind ofly extract the drawing method that interior angle is the right angle on stainless steel bucket or body, it may further comprise the steps:
At first, on stainless steel bucket or body, get out a diameter for finally extracting the hole of bore 1/3, as shown in Figure 3;
Secondly, to use the Medium frequency induction coil to carry out local heat around holing, for stainless steel material, heating-up temperature generally should be above 1050 ℃, for other material, heating-up temperature should be the upper limit with material austenite strain temperature, and heated perimeter is no more than 2 times that finally extract pipe cylindrical area, with stainless steel tube or bucket, heating surface (area) (HS can be controlled in about 1.5 times;
The 3rd, utilize immediately after heating finishes take blame for others 1 and drift 2 outwards rush to summit from the inside of staving or body 3, simultaneously hole and install and fix patrix 5 on 4, the diameter of drift 2 and the internal diameter of finally extracting pipe are matched, the internal diameter of patrix 5 and the external diameter of finally extracting pipe are matched, so that the pipe of extracting that drift 2 ejects is limited in the patrix 5, obtains curved the extracting of interior angle and manage blank 6; As shown in Figure 4.
The 4th, repeat second content that goes on foot, heat extracting pipe blank 6 and periphery material thereof;
The 5th, after heating finishes, earlier in extracting the pipe blank hole plug-in mounting with finally extract the plug 7 that bore matches, extracting the pipe position in staving or body 3 installs the internal mold that matches with staving or body 3 inwalls 8 additional and 1 withstands with taking blame for others, in patrix 5, install simultaneously tubulose upper punch 9 additional, tubulose upper punch 9 is pressed down force and extract pipe hair bad 6 and under the acting in conjunction of tubulose upper punch 9, plug 7 and internal mold 8, plastic deformation takes place, as shown in Figure 5, the interior angle that finally obtains as shown in Figure 2 is that extracting of right angle manages 10.
Because the pipe of extracting of the present invention 10 carries out on the face of cylinder, employed patrix during therefore concrete enforcement, internal mold, the supporting surface of taking blame for others all should be complementary with the face of cylinder.
Mould is a key of the present invention with adding thermal control, and for other material, its difference is the selection of heating-up temperature, and the local heat temperature is that the austenite strain temperature is good to be no more than the material property change.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (1)
1. on staving or body, extract the drawing method that interior angle is the right angle for one kind, it is characterized in that it may further comprise the steps:
At first, on staving or body, get out a diameter for finally extracting the hole of bore 1/3;
Secondly, institute hole carry out local heat on every side, heating-up temperature is no more than material austenite strain temperature, and heated perimeter is no more than finally extracts 2 times that manage the cylindrical area;
The 3rd, utilize immediately after heating finishes and take blame for others (1) and drift (2) is outwards rushed to summit from the inside of staving or body (3), simultaneously install and fix patrix (5) on hole (4), the diameter of drift (2) and the internal diameter of finally extracting pipe are matched, the internal diameter of patrix (5) and the external diameter of finally extracting pipe are matched, so that the pipe of extracting that drift (2) ejects is limited in the patrix (5), obtains curved the extracting of interior angle and manage blank (6);
The 4th, repeat second content that goes on foot, heat extracting pipe blank (6) and periphery material thereof;
The 5th, after heating finishes, earlier in extracting the pipe blank hole plug-in mounting with finally extract the plug (7) that bore matches, extracting the pipe position in staving or body (3) installs the internal mold (8) that matches with staving or body (3) inwall additional and withstands with take blame for others (1), in patrix (5), install simultaneously tubulose upper punch (9) additional, tubulose upper punch (9) is pressed down force and extract pipe hair bad (6) plastic deformation takes place under the acting in conjunction of tubulose upper punch (9), plug (7) and internal mold (8), what finally obtain interior angle and be the right angle extracts pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102376317A CN101885025B (en) | 2010-07-27 | 2010-07-27 | Tube drawing method for drawing inner right angle on barrel or tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102376317A CN101885025B (en) | 2010-07-27 | 2010-07-27 | Tube drawing method for drawing inner right angle on barrel or tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101885025A CN101885025A (en) | 2010-11-17 |
| CN101885025B true CN101885025B (en) | 2011-09-14 |
Family
ID=43071206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102376317A Active CN101885025B (en) | 2010-07-27 | 2010-07-27 | Tube drawing method for drawing inner right angle on barrel or tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101885025B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553954A (en) * | 2012-01-30 | 2012-07-11 | 江苏新恒基重工有限公司 | Oil jack fast-movement device for pipe jacking processing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4444857C1 (en) * | 1994-12-16 | 1996-02-15 | Schmidt Und Remmert Gmbh | Method for forming opening in wall of esp. exhaust pipe |
| CN1141826A (en) * | 1995-04-17 | 1997-02-05 | 镇江市江悦实业集团公司 | Cold-drawing technology for processing phaseisolated enclosed bus housing |
| JP2007105788A (en) * | 2005-10-17 | 2007-04-26 | Nisshin Steel Co Ltd | Piercing method and counterpunch used therefor |
| CN201482862U (en) * | 2009-08-25 | 2010-05-26 | 合肥实华管件有限责任公司 | Fixture for stepped click molding manifold |
-
2010
- 2010-07-27 CN CN2010102376317A patent/CN101885025B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553954A (en) * | 2012-01-30 | 2012-07-11 | 江苏新恒基重工有限公司 | Oil jack fast-movement device for pipe jacking processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101885025A (en) | 2010-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100500320C (en) | Device for improving forming limit of hydromechanical drawing of sheet material and method thereof | |
| CN105013908B (en) | For the assembling die and manufacturing process of the shaping of flange pipe nipple | |
| CN104148558B (en) | The production method of T-shaped ring-type forge piece blank reheating in SB564 UNS N06690 alloy large-size | |
| CN108817194B (en) | Hydraulic preparation method of multi-elbow pipe | |
| CN102632142B (en) | Hot stamping die for latches | |
| CN107138590B (en) | A kind of device and method using the driving plate hole flanging forming of multidirectional magnetic field force | |
| CN103464563B (en) | The outer high-pressure liquid-filling building mortion of a kind of tubing | |
| CN101537438A (en) | Hot impact extrusion process and device for large annular barrel type forged piece | |
| CN103909132A (en) | Reverse drawing method for soft die with peripheral auxiliary thrust | |
| CN101885025B (en) | Tube drawing method for drawing inner right angle on barrel or tube | |
| CN103567341A (en) | Forging method for CAP1400 nuclear power pressure vessel pipe connecting section | |
| CN105414240A (en) | Hot extrusion forming method of special-shaped square tube | |
| CN210023521U (en) | Composite pipe flanging withholding joint processing equipment | |
| CN202123135U (en) | Thermal push-bending device for pipes with equal diameter and equal wall thickness | |
| CN201791833U (en) | Tube end belling mould of metal tube | |
| CN203209614U (en) | One-time demoulding device for internal and external diameter tool | |
| CN110270619A (en) | A kind of circular material blank ultrahigh-pressure hydraulic breathing intensifying device | |
| CN205165555U (en) | Head embossing mold utensil | |
| CN106513527B (en) | A kind of preparation facilities and preparation method of the Marmem dead ring of low cost | |
| CN210966608U (en) | Ultrasonic vibration assisted pipe hydroforming device | |
| CN202052873U (en) | Mark-free expansion die for cold-shrinkable cable fittings | |
| CN104174651A (en) | Stainless steel pipe thickening process | |
| CN106334722A (en) | Cold stamping method for producing sleeves | |
| CN104989311A (en) | Sliding rail type fishing device | |
| CN104209413B (en) | A kind of columns guiding mechanism for air-conditioner fin die punching or flanging sub-die |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU NEW HENGJI SPECIAL EQUIPMENT CO., LTD. Free format text: FORMER NAME: JIANGSU NEW HENGJI HEAVY INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210028 No. 8, Maigaoqiao Pioneer Park, Qixia District, Jiangsu, Nanjing Patentee after: JIANGSU NEW HENGJI SPECIAL EQUIPMENT Co.,Ltd. Address before: 210028 No. 8, Maigaoqiao Pioneer Park, Qixia District, Jiangsu, Nanjing Patentee before: Jiangsu New Hengji Heavy Industry Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: The method of pulling out the inner angle of can body or pipe body is right angle Effective date of registration: 20200827 Granted publication date: 20110914 Pledgee: Bank of Jiangsu Limited by Share Ltd. Taishan Nanjing road subbranch Pledgor: JIANGSU NEW HENGJI SPECIAL EQUIPMENT Co.,Ltd. Registration number: Y2020980005464 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230518 Granted publication date: 20110914 Pledgee: Bank of Jiangsu Limited by Share Ltd. Taishan Nanjing road subbranch Pledgor: JIANGSU NEW HENGJI SPECIAL EQUIPMENT Co.,Ltd. Registration number: Y2020980005464 |