CN105436285A - Stamping-bulge forming device and method for increasing height of t-branch pipe - Google Patents
Stamping-bulge forming device and method for increasing height of t-branch pipe Download PDFInfo
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- CN105436285A CN105436285A CN201510942278.5A CN201510942278A CN105436285A CN 105436285 A CN105436285 A CN 105436285A CN 201510942278 A CN201510942278 A CN 201510942278A CN 105436285 A CN105436285 A CN 105436285A
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- axial thrust
- drift
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- built
- thrust drift
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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
- 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
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- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a stamping-bulge forming device and method for increasing the height of a t-branch pipe. The device comprises a first axial thrust punch, a second axial thrust punch, a first prefill valve, a second prefill valve, a forming die, a back pressure punch, a pipe blank, a built-in mandrel and the like. The pipe blank is provided with three end openings communicated with a pipe cavity formed in the pipe blank. The built-in mandrel is put into the pipe blank and penetrates through the first end opening and the second end opening of the pipe blank. The pipe blank is placed in the forming die. One end of the first axial thrust punch is in contact with the first end opening of the pipe blank. One end of the second axial thrust punch is in contact with the second end opening of the pipe blank. A cavity formed in the first axial thrust punch and a cavity formed in the second axial thrust punch are communicated with the pipe cavity of the pipe blank. The cavity formed in the second axial thrust punch can be filled with high-pressure liquid through the second prefill valve. The back pressure punch is installed on the forming die. One end of the back pressure punch is in contact with the third end opening of the pipe blank. By means of the stamping-bulge forming device and method for increasing the height of the t-branch pipe, the problems that a branch pipe is thinned during bulging, ,material supplying is difficult, and the branch pipe is prone to wrinkles and fracture are solved.
Description
Technical field
The present invention is that a kind of upsetting increasing tee branch height is expanded into shape device and method, and the upsetting that belonging to increases tee branch height is expanded into the innovative technology of shape device and method.
Background technology
The employing of tradition three-way pipe (Fig. 1) major part is cast, be welded to connect shaping and expansion forming technique makes, the fields such as extensive use chemical industry, daily life.In above-mentioned three kinds of manufacturing process, casting is the simplest forming technology, can obtain the tee pipe fitting of more complicated and higher arm, but due to casting technique itself, its shaping three-way pipe material therefor and the quality of item after being shaped are limited in using in certain scope; The technique being welded to connect figuration manufacture three-way pipe is first boring on supervisor, then by branch pipe welding on supervisor, form three-way pipe.Relative to casting three-way plumber skill, this can be welded to connect shaping to high-quality tubing to be welded to connect shaping, and the height of arm is without any restriction, but the shortcoming of this process program be due to supervisor on perforate again by branch pipe welding supervisor on, the sealing wire of such supervisor and arm is exactly a complicated space curve, just because of the existence of space sealing wire, easily produces welding slag, hole at welding region, cause weld seam to be corroded, cause seepy question to occur; In order to overcome casting and the shortcoming of welding tee pipe, adopt to straight-through tubing in addition inner high voltage make its method forming arm can obtain all-in-one-piece three-way pipe.Because inner high voltage formation three-way pipe is obtained by the method for Plastic Forming, so its quality is good, overcome casting and the deficiency brought to product quality of welding method, this is also that a lot of occasion of three-way pipe that uses wishes one of reason of application expansion forming three-way pipe at present.Therefore the method for internal high pressure forming three-way pipeline is also received publicity and is paid attention to.But, the method of existing employing internal high pressure forming three-way pipe, because the wall thickness forming arm usually in arm process by inner high voltage at straight-through tubing is thinning, cause and be restricted by the height of direct expansion forming three-way pipe arm, this has also had a strong impact on the use of internal high pressure forming three-way pipe.For this reason, research and develop a kind of method that can improve shaping three-way pipe arm height, the higher-quality three-way pipe tool of acquisition is of great significance.
Summary of the invention
The object of the invention is to consider the problems referred to above and a kind of swollen building mortion of upsetting increasing tee branch height is provided.Lower thickness and feed supplement is rare and the easy wrinkling and problem such as to break when the present invention solves arm bulging.
Another object of the present invention is to provide a kind of simple to operation, be easy to the swollen manufacturing process of upsetting of the increase tee branch height realized.
Technical scheme of the present invention is: the swollen building mortion of upsetting of increase tee branch height of the present invention, include the first axial thrust drift, second axial thrust drift, first prefill valve, second prefill valve, first built-in balancing spring, second built-in balancing spring, shaping dies, back pressure drift, pipe, built-in plug, wherein pipe is provided with three ports communicated with tube chamber set by pipe respectively, built-in plug puts into pipe, and pass the first port and second port of pipe, pipe is placed in shaping dies, first axial thrust drift and the second axial thrust drift are all installed in shaping dies, and one end of the first axial thrust drift and the first port of pipe touch, one end of second axial thrust drift and the second port of pipe touch, first built-in balancing spring is installed in the cavity set by the first axial thrust drift, and one end of the first built-in balancing spring and one end of built-in plug touch, set by the other end of the first built-in balancing spring and the first axial thrust drift, the chamber wall of cavity touches, second built-in balancing spring is installed in the cavity set by the second axial thrust drift, and one end of the second built-in balancing spring and the other end of built-in plug touch, set by the other end of the second built-in balancing spring and the second axial thrust drift, the chamber wall of cavity touches, set by cavity set by first axial thrust drift and the second axial thrust drift, cavity all communicates with the tube chamber of pipe, first prefill valve is installed on the first axial thrust drift, second prefill valve is installed on the second axial thrust drift, highly pressurised liquid is by cavity set by the first prefill valve energy topping up to the first axial thrust drift, highly pressurised liquid is by cavity set by the second prefill valve energy topping up to the second axial thrust drift, back pressure drift is installed on shaping dies, and the 3rd port of one end of back pressure drift and pipe touches.
The manufacturing process of the swollen building mortion of upsetting of increase tee branch height of the present invention, includes following steps:
1) built-in plug is put into tube chamber set by pipe, pipe is placed in shaping dies, makes built-in plug remain on the position of requirement by the first built-in balancing spring and the second built-in balancing spring, at this moment, closes the first prefill valve and the second prefill valve;
2) firmly make the first axial thrust drift at two ends and the second axial thrust drift move to the direction of pipe, pipe upsetting squeeze is carried out poly-material to centre;
3) when the first axial thrust drift and the second axial thrust drift arrive certain position, after poly-material completes, open the first prefill valve and the second prefill valve, highly pressurised liquid is by cavity set by the first prefill valve topping up to the first axial thrust drift, highly pressurised liquid is by cavity set by the second prefill valve topping up to the second axial thrust drift, meanwhile, back pressure drift presses down to the 3rd port direction of pipe;
4) under the acting in conjunction of the back pressure of the first axial thrust drift and the axial thrust of the second axial thrust drift and the pressure of highly pressurised liquid and back pressure drift, pipe is made to be configured as tee branch.
The present invention adopts the structure of the swollen process forming three-way pipe of inner high voltage upsetting, can be controlled the volume of arm, solve the rare problem of arm bulging feed supplement by the volume size changing the set poly-hopper of plug.In addition, by adding plug at pipe internal diameter, carrying out upsetting be expanded into shape to pipe, efficiently solve pipe flexing and wrinkling problem, the present invention is a kind of easy to operate, is easy to the swollen building mortion of upsetting and the manufacturing process of the increase tee branch height realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of three-way pipe of the present invention;
Pipe and plug are placed in mould by Fig. 2, and left and right thrust drift axial feed drift is to the original state of pipe end, and tubing jumping-up makes material filling plug gather the view of hopper;
Fig. 3 is the end-state that the upsetting of three-way pipe is expanded into shape.
Detailed description of the invention
Embodiment:
Structural representation of the present invention is as Fig. 1, 2, shown in 3, the swollen building mortion of upsetting of increase tee branch height of the present invention, include the first axial thrust drift 1, second axial thrust drift 10, first prefill valve 2, second prefill valve 9, first built-in balancing spring 3, second built-in balancing spring 8, shaping dies 4, back pressure drift 5, pipe 6, built-in plug 7, wherein pipe 6 is provided with three ports communicated with tube chamber set by pipe 6 respectively, built-in plug 7 puts into pipe 6, and pass the first port and second port of pipe 6, pipe 6 is placed in shaping dies 4, first axial thrust drift 1 and the second axial thrust drift 10 are all installed in shaping dies 4, and one end of the first axial thrust drift 1 and the first port of pipe 6 touch, one end of second axial thrust drift 10 and the second port of pipe 6 touch, first built-in balancing spring 3 is installed in the cavity set by the first axial thrust drift 1, and one end of the first built-in balancing spring 3 and one end of built-in plug 7 touch, set by the other end of the first built-in balancing spring 3 and the first axial thrust drift 1, the chamber wall of cavity touches, second built-in balancing spring 8 is installed in the cavity set by the second axial thrust drift 10, and one end of the second built-in balancing spring 8 and the other end of built-in plug 7 touch, set by the other end of the second built-in balancing spring 8 and the second axial thrust drift 10, the chamber wall of cavity touches, set by cavity set by first axial thrust drift 1 and the second axial thrust drift 10, cavity all communicates with the tube chamber of pipe 6, first prefill valve 2 is installed on the first axial thrust drift 1, second prefill valve 9 is installed on the second axial thrust drift 10, highly pressurised liquid is by cavity set by the first prefill valve 2 energy topping up to the first axial thrust drift 1, highly pressurised liquid is by cavity set by the second prefill valve 9 energy topping up to the second axial thrust drift 10, back pressure drift 5 is installed on shaping dies 4, and the 3rd port of one end of back pressure drift 5 and pipe 6 touches.The volume of arm can be controlled by the volume size changing the set poly-hopper of plug 7, solve the rare problem of arm bulging feed supplement.In addition, by adding plug at pipe 6 internal diameter, upsetting being carried out to pipe 6 and is expanded into shape, efficiently solve pipe 6 flexing and wrinkling problem.
In the present embodiment, the other end of above-mentioned back pressure drift 5 is placed on outside shaping dies 4.The other end of above-mentioned first axial thrust drift 1 and the second axial thrust drift 10 is placed on outside shaping dies 4.
The manufacturing process of the swollen building mortion of upsetting of increase tee branch height of the present invention, includes following steps:
1) built-in plug 7 is put into tube chamber set by pipe 6, pipe 6 is placed in shaping dies 4, make built-in plug 7 remain on the position of requirement by the first built-in balancing spring 3 and the second built-in balancing spring 8, at this moment, close the first prefill valve 2 and the second prefill valve 9;
2) firmly make the first axial thrust drift 1 at two ends and the second axial thrust drift 10 move to the direction of pipe 6, pipe 6 upsetting squeeze is carried out poly-material to centre;
3) when the first axial thrust drift 1 and the second axial thrust drift 10 arrive certain position, after poly-material completes, open the first prefill valve 2 and the second prefill valve 9, highly pressurised liquid is by cavity set by the first prefill valve 2 topping up to the first axial thrust drift 1, highly pressurised liquid is by cavity set by the second prefill valve 9 topping up to the second axial thrust drift 10, meanwhile, back pressure drift 5 presses down to the 3rd port direction of pipe 6;
4) under the acting in conjunction of the back pressure of the first axial thrust drift 1 and the axial thrust of the second axial thrust drift 10 and the pressure of highly pressurised liquid and back pressure drift 5, pipe 6 is made to be configured as tee branch.
In the present embodiment, the relation of the axial thrust of above-mentioned first axial thrust drift 1 and the second axial thrust drift 10, the pressure of highly pressurised liquid, the back pressure of back pressure drift 5 is relations of constraint mutually, in order to obtain high arm, by experiment or by existing empirical data Reasonable adjustment axial thrust, s and back pressure, to meet the physical dimension requirement of formation of parts.
Claims (5)
1. one kind increases the swollen building mortion of upsetting of tee branch height, it is characterized in that including the first axial thrust drift, second axial thrust drift, first prefill valve, second prefill valve, first built-in balancing spring, second built-in balancing spring, shaping dies, back pressure drift, pipe, built-in plug, wherein pipe is provided with three ports communicated with tube chamber set by pipe respectively, built-in plug puts into pipe, and pass the first port and second port of pipe, pipe is placed in shaping dies, first axial thrust drift and the second axial thrust drift are all installed in shaping dies, and one end of the first axial thrust drift and the first port of pipe touch, one end of second axial thrust drift and the second port of pipe touch, first built-in balancing spring is installed in the cavity set by the first axial thrust drift, and one end of the first built-in balancing spring and one end of built-in plug touch, set by the other end of the first built-in balancing spring and the first axial thrust drift, the chamber wall of cavity touches, second built-in balancing spring is installed in the cavity set by the second axial thrust drift, and one end of the second built-in balancing spring and the other end of built-in plug touch, set by the other end of the second built-in balancing spring and the second axial thrust drift, the chamber wall of cavity touches, set by cavity set by first axial thrust drift and the second axial thrust drift, cavity all communicates with the tube chamber of pipe, first prefill valve is installed on the first axial thrust drift, second prefill valve is installed on the second axial thrust drift, highly pressurised liquid is by cavity set by the first prefill valve energy topping up to the first axial thrust drift, highly pressurised liquid is by cavity set by the second prefill valve energy topping up to the second axial thrust drift, back pressure drift is installed on shaping dies, and the 3rd port of one end of back pressure drift and pipe touches.
2. the swollen building mortion of upsetting of increase tee branch height according to claim 1, is characterized in that the other end of above-mentioned back pressure drift is placed on outside shaping dies.
3. the swollen building mortion of upsetting of increase tee branch height according to claim 1, is characterized in that the other end of above-mentioned first axial thrust drift and the second axial thrust drift is placed on outside shaping dies.
4. a manufacturing process for the swollen building mortion of upsetting of increase tee branch height according to claim 1, is characterized in that including following steps:
1) built-in plug is put into tube chamber set by pipe, pipe is placed in shaping dies, makes built-in plug remain on the position of requirement by the first built-in balancing spring and the second built-in balancing spring, at this moment, closes the first prefill valve and the second prefill valve;
2) firmly make the first axial thrust drift at two ends and the second axial thrust drift move to the direction of pipe, pipe upsetting squeeze is carried out poly-material to centre;
3) when the first axial thrust drift and the second axial thrust drift arrive certain position, after poly-material completes, open the first prefill valve and the second prefill valve, highly pressurised liquid is by cavity set by the first prefill valve topping up to the first axial thrust drift, highly pressurised liquid is by cavity set by the second prefill valve topping up to the second axial thrust drift, meanwhile, back pressure drift presses down to the 3rd port direction of pipe;
4) under the acting in conjunction of the back pressure of the first axial thrust drift and the axial thrust of the second axial thrust drift and the pressure of highly pressurised liquid and back pressure drift, pipe is made to be configured as tee branch.
5. the manufacturing process of the swollen building mortion of upsetting of increase tee branch height according to claim 4, the relation of the axial thrust of above-mentioned first axial thrust drift and the second axial thrust drift, the pressure of highly pressurised liquid, the back pressure of back pressure drift that it is characterized in that is the relation of constraint mutually, adjust axial thrust, s and back pressure, to meet the physical dimension requirement of formation of parts by experiment or by existing empirical data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942278.5A CN105436285B (en) | 2015-12-16 | 2015-12-16 | It is a kind of to increase the swollen building mortion of upsetting and method of tee branch height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942278.5A CN105436285B (en) | 2015-12-16 | 2015-12-16 | It is a kind of to increase the swollen building mortion of upsetting and method of tee branch height |
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| Publication Number | Publication Date |
|---|---|
| CN105436285A true CN105436285A (en) | 2016-03-30 |
| CN105436285B CN105436285B (en) | 2017-09-26 |
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| CN201510942278.5A Expired - Fee Related CN105436285B (en) | 2015-12-16 | 2015-12-16 | It is a kind of to increase the swollen building mortion of upsetting and method of tee branch height |
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| CN (1) | CN105436285B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921586A (en) * | 2016-06-03 | 2016-09-07 | 广东工业大学 | Side-by-side double-branch-pipe upsetting, rolling and expanding composite forming device and method |
| CN106493213A (en) * | 2016-12-26 | 2017-03-15 | 广东工业大学 | The manufacture device and method of a kind of pipeline |
| CN108787845A (en) * | 2018-05-28 | 2018-11-13 | 南京理工大学 | A kind of hydroforming equipment of large diameter thin wall metal tube |
| CN109719187A (en) * | 2019-02-03 | 2019-05-07 | 哈尔滨工业大学 | A kind of antisymmetric reducing thin wall circumferential direction flowing forming device |
| CN111496053A (en) * | 2020-06-11 | 2020-08-07 | 沈阳航空航天大学 | Back pressure limiting type metal three-way pipe composite bulging device |
| CN113798382A (en) * | 2021-08-03 | 2021-12-17 | 宁波金田铜管有限公司 | Processing method for thinning tee joint back accumulation |
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| CN205183456U (en) * | 2015-12-16 | 2016-04-27 | 广东工业大学 | Increase bloated shaper of rammer of tee branch height |
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2015
- 2015-12-16 CN CN201510942278.5A patent/CN105436285B/en not_active Expired - Fee Related
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Non-Patent Citations (1)
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| 邱言龙: "《巧学模具钳工技能》", 30 June 2012, 中国电力出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921586A (en) * | 2016-06-03 | 2016-09-07 | 广东工业大学 | Side-by-side double-branch-pipe upsetting, rolling and expanding composite forming device and method |
| CN106493213A (en) * | 2016-12-26 | 2017-03-15 | 广东工业大学 | The manufacture device and method of a kind of pipeline |
| CN108787845A (en) * | 2018-05-28 | 2018-11-13 | 南京理工大学 | A kind of hydroforming equipment of large diameter thin wall metal tube |
| CN108787845B (en) * | 2018-05-28 | 2020-04-10 | 南京理工大学 | Hydraulic forming device for large-diameter thin-wall metal pipe fitting |
| CN109719187A (en) * | 2019-02-03 | 2019-05-07 | 哈尔滨工业大学 | A kind of antisymmetric reducing thin wall circumferential direction flowing forming device |
| CN111496053A (en) * | 2020-06-11 | 2020-08-07 | 沈阳航空航天大学 | Back pressure limiting type metal three-way pipe composite bulging device |
| CN113798382A (en) * | 2021-08-03 | 2021-12-17 | 宁波金田铜管有限公司 | Processing method for thinning tee joint back accumulation |
| CN113798382B (en) * | 2021-08-03 | 2024-01-26 | 宁波金田铜管有限公司 | Processing method for thinning back accumulation of tee joint |
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| CN105436285B (en) | 2017-09-26 |
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