CN107983813B - A kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet - Google Patents
A kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet Download PDFInfo
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- CN107983813B CN107983813B CN201711119625.XA CN201711119625A CN107983813B CN 107983813 B CN107983813 B CN 107983813B CN 201711119625 A CN201711119625 A CN 201711119625A CN 107983813 B CN107983813 B CN 107983813B
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- heat exchanger
- pipe axis
- plate heat
- pressing plate
- plate
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/16—Reverse flanging of tube ends
-
- 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
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
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- Mechanical Engineering (AREA)
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Abstract
Tubing, is first assemblied in the inner hole of plate heat exchanger pressing plate, guarantees plate heat exchanger press plate position in the centre of two pipe axis belling moulds by a kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet；Two pipe axis belling moulds are fed in opposite directions in the axial direction with identical speed, until tubing free end is contacted with plate heat exchanger pressing plate, are deformed into the identical circular arc of shape, size；If plate heat exchanger pressing plate fillet is fed without specific size requirement, two pipe axis belling mould continuation with identical speed in opposite directions in the axial direction, until semicircle free end and plate heat exchanger pressing plate completely attach to, become plane；If plate heat exchanger pressing plate fillet has specific requirement, two pipe axis belling moulds are changed to two flattening punchs, two flattening punchs are fed in opposite directions in the axial direction with identical speed, until semicircle free end and plate heat exchanger pressing plate completely attach to, become plane；The present invention simplifies forming process, shortens curring time, improves processing efficiency.
Description
Technical field
The invention belongs to advanced plastic forming technology fields, and in particular to synchronous forming is board-like changes for a kind of belt restraining pipe axis pressure
The method of hot device grommet.
Background technique
Plate heat exchanger is a series of a kind of high-performance heat exchanger as made of sheet metal closed assemblies with certain corrugated shape,
Plate heat exchanger grommet is the important part on plate heat exchanger.It is on active service in the period, heat exchanger plate needs periodic cleaning, but serves as a contrast
Ring can not be dismantled, clean difficulty, and cold and hot fluid/gas import and export metal grommet wishes to be served in the entire Life Cycle of heat exchanger
Phase.
But the method that plate heat exchanger grommet mostly uses both ends flange splicing side at present manufactures or grommet end flange
It is processed using plastic methods such as punching presses, uses welding forming technique with another end flanges after the assembly of plate heat exchanger pressing plate.Metal
The weld seam on lined flange side not only influences product appearance, but also influences product quality, and especially commissure is easy during service
Now corrode, influence the service life of heat exchanger, increases the maintenance difficulties of heat exchanger, the middle promulgated by the State Council of Publication No. CN105945110A
Bright patent proposes a kind of device of two end flanges of synchronous processing, essence or a punching press flanging forming, and is only applicable to
The lesser flange forming of size, if forming flange size is larger, it is still necessary to carry out multi-pass punching press flanging forming.
Summary of the invention
To overcome the above disadvantages, the purpose of the present invention is to provide a kind of belt restraining pipe axis to press synchronous forming plate-type heat-exchange
The method of device grommet shapes plate heat exchanger metal grommet both ends flange simultaneously during once-forming, to be simplified to
Shape process shortens curring time, improves processing efficiency.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet, comprising the following steps:
1), tubing 100 is assemblied in the inner hole of plate heat exchanger pressing plate 2,2 inner hole fillet of plate heat exchanger pressing plate is
R0,100 free end length of tubing are L, and with a thickness of t, fixed plate heat exchanger pressing plate 2 guarantees that 2 position of plate heat exchanger pressing plate exists
The centre of first pipe axis belling mould 1 and the second pipe axis belling mould 3, constrains 100 outer wall of tubing；
2), the first pipe axis belling mould 1 and the second pipe axis belling mould 3 are fed in opposite directions in the axial direction with identical speed, pipe
100 free end of material takes place Texturized after touch with the first pipe axis belling mould 1 and 3 fillet part of the second pipe axis belling mould tap；
3) the first pipe axis belling mould 1 and the second pipe axis belling mould 3 continue to feed, and 100 front end of tubing will be disengaged from fillet
Free Transform is deformed into the identical circular arc of shape, size, stops until 100 free end of tubing is contacted with plate heat exchanger pressing plate 2
Only feed；Its circular arc central angle should be less than 180 ° before 100 free end of tubing is contacted with plate heat exchanger pressing plate 2, the first pipe axis pressure
The fillet R of punch-pin 1 and the second pipe axis belling mould 3 and 100 free end length L of tubing need to meet relationship R >=L/t；
4), two end flanges of synchronous pressure Heisei shape:
4.1), if 2 fillet R0 of plate heat exchanger pressing plate takes plate heat exchanger pressing plate fillet without specific size requirementR0=R- t, the first pipe axis belling mould 1 and the second pipe axis belling mould 3 continuation fed in opposite directions in the axial direction with identical speed, tubing 100
Free end starts to deform after contacting with plate heat exchanger pressing plate 2, until semicircle free end connects completely with plate heat exchanger pressing plate 2
Touching, becomes plane；
If 4.2), 2 fillet R0 of plate heat exchanger pressing plate has specific requirement, by the first pipe axis belling mould 1 and the second pipe axis pressure
Punch-pin 3 is changed to the first flattening punch 4 and the second flattening punch 5,5 fillet R1=of the first flattening punch 4 and the second flattening punch
R0+t, the first flattening punch 4 and the second flattening punch 5 are fed in opposite directions in the axial direction with identical speed, 100 free end of tubing
Start to deform after contacting with plate heat exchanger pressing plate 2, until semicircle free end and plate heat exchanger pressing plate 2 completely attach to, become
At plane；
5), mold exits, and completes the processing of two end flanges of plate heat exchanger grommet.
Beneficial effects of the present invention: the present invention uses belt restraining pipe axis pressing formation mode, realizes plate heat exchanger bushing
The synchronous forming of two end flanges is effectively simplified the process of plate heat exchanger grommet, improves processing efficiency and morphoplasm
Amount.
Detailed description of the invention
Fig. 1 is 100 schematic diagram of tubing.
Fig. 2 is schematic diagram before pipe axis pressing formation.
Fig. 3 is pipe axis pressing formation process schematic.
Fig. 4 is schematic diagram after pipe axis pressing formation.
Fig. 5 is that pipe axis belling is molded flat schematic diagram.
Fig. 6 is 100 schematic diagram of tubing after the molding of pipe axis belling is flat.
Fig. 7 is schematic diagram after replacement flattening punch.
Fig. 8 is the convex pressing schematic diagram of flattening die.
Fig. 9 is 100 schematic diagram of tubing after flattening punch flattens.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples:, 2 fillet of plate heat exchanger pressing plate in embodiment 1
R0 is without specific requirement, and 2 fillet R0 of plate heat exchanger pressing plate has specific requirement in embodiment 2.
A kind of embodiment 1: method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet, comprising the following steps:
1), referring to Figures 1 and 2, tubing 100 is assemblied in the inner hole of plate heat exchanger pressing plate 2, plate heat exchanger pressing plate
2 inner hole fillets are R0, and 100 free end length of tubing is L, and with a thickness of t, fixed plate heat exchanger pressing plate 2 guarantees plate heat exchanger
2 position of pressing plate constrains 100 outer wall of tubing in the centre of the first pipe axis belling mould 1 and the second pipe axis belling mould 3；
2), referring to Fig. 3, the first pipe axis belling mould 1 and the second pipe axis belling mould 3 are opposite in the axial direction with identical speed
Volume takes place in feeding, 100 free end of tubing and the first pipe axis belling mould 1 and 3 fillet part of the second pipe axis belling mould tap after touch
Song deformation；
3) referring to Fig. 4, the first pipe axis belling mould 1 and the second pipe axis belling mould 3 continue to feed, and 100 front end of tubing will be disengaged from
Free Transform occurs for fillet, until 100 free end of tubing is contacted with plate heat exchanger pressing plate 2, it is identical to be deformed into shape, size
Circular arc, feed-disabling, in order to guarantee the forming on plate heat exchanger lined flange side, 100 free end of tubing is the same as plate heat exchanger pressure
Its circular arc central angle should be less than 180 ° before plate 2 contacts, the fillet R and tubing of the first pipe axis belling mould 1 and the second pipe axis belling mould 3
100 free end length L need to meet relationship R >=L/t；
4), two end flanges of synchronous pressure Heisei shape: 2 fillet R0 of plate heat exchanger pressing plate is wanted without specific size in this embodiment
It asks, takes 2 fillet of plate heat exchanger pressing plateR0=R-t, referring to Fig. 5, the first pipe axis belling mould 1 and the second pipe axis belling mould 3 continue
It being fed in opposite directions in the axial direction with identical speed, 100 free end of tubing starts to deform after contacting with plate heat exchanger pressing plate 2,
Until semicircle free end and plate heat exchanger pressing plate 2 completely attach to, become plane；
5), the first pipe axis belling mould 1 and the second pipe axis belling mould 2 exit, and referring to Fig. 6, obtain the plate-type heat-exchange with grommet
Device pressing plate.
A kind of embodiment 2: method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet, comprising the following steps:
1), referring to Figures 1 and 2, tubing 100 is assemblied in the inner hole of plate heat exchanger pressing plate 2, plate heat exchanger pressing plate
2 inner hole fillets are R0, and 100 free end length of tubing is L, and with a thickness of t, fixed plate heat exchanger pressing plate 2 guarantees plate heat exchanger
2 position of pressing plate constrains 100 outer wall of tubing in the centre of the first pipe axis belling mould 1 and the second pipe axis belling mould 3；
2), referring to Fig. 3, the first pipe axis belling mould 1 and the second pipe axis belling mould 3 are opposite in the axial direction with identical speed
Volume takes place in feeding, 100 free end of tubing and the first pipe axis belling mould 1 and 3 fillet part of the second pipe axis belling mould tap after touch
Song deformation；
3) referring to Fig. 4, the first pipe axis belling mould 1 and the second pipe axis belling mould 3 continue to feed, and 100 front end of tubing will be disengaged from
Free Transform occurs for fillet, until 100 free end of tubing is contacted with plate heat exchanger pressing plate 2, it is identical to be deformed into shape, size
Circular arc, feed-disabling, in order to guarantee the forming on plate heat exchanger lined flange side, 100 free end of tubing is the same as plate heat exchanger pressure
Its circular arc central angle should be less than 180 ° before plate 2 contacts, the fillet R and tubing of the first pipe axis belling mould 1 and the second pipe axis belling mould 3
100 free end length L need to meet relationship R >=L/t；
4), two end flanges of synchronous pressure Heisei shape: 2 fillet R0 of plate heat exchanger pressing plate has specific requirement in this embodiment, ginseng
According to Fig. 7, the first pipe axis belling mould 1, the second pipe axis belling mould 2 are changed to the first flattening punch 4 and the second flattening punch 5, the
5 fillet of one flattening punch 4 and the second flattening punchR1=R0+t, referring to Fig. 8, the first flattening punch 4 and the second flattening punch 5 with
Identical speed is fed in opposite directions in the axial direction, and 100 free end of tubing starts to deform after contacting with plate heat exchanger pressing plate 2, directly
It is completely attached to semicircle free end and plate heat exchanger pressing plate 2, becomes plane；
5), the first flattening punch 4 and the second flattening punch 5 exit, and referring to Fig. 9, obtain the plate heat exchanger pressure with grommet
Plate.
Claims (1)
1. a kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet, which comprises the following steps:
1), tubing (100) is assemblied in the inner hole of plate heat exchanger pressing plate (2), plate heat exchanger pressing plate (2) inner hole fillet is
R0, tubing (100) free end length are L, and with a thickness of t, fixed plate heat exchanger pressing plate (2) guarantee plate heat exchanger pressing plate (2)
Position constrains tubing (100) outer wall in the centre of the first pipe axis belling mould (1) and the second pipe axis belling mould (3)；
2), the first pipe axis belling mould (1) and the second pipe axis belling mould (3) are fed in opposite directions in the axial direction with identical speed, pipe
Curling takes place in material (100) free end and the first pipe axis belling mould (1) and the second pipe axis belling mould (3) fillet part tap after touch
Deformation；
3) the first pipe axis belling mould (1) and the second pipe axis belling mould (3) continue to feed, and tubing (100) free end will be disengaged from fillet
Free Transform occurs, until tubing (100) free end is contacted with plate heat exchanger pressing plate (2), it is identical to be deformed into shape, size
Circular arc, feed-disabling；Its circular arc central angle is less than 180 ° before tubing (100) free end is contacted with plate heat exchanger pressing plate (2), and the
The fillet R of one pipe axis belling mould (1) and the second pipe axis belling mould (3) and tubing (100) free end length L meet relationship R >=L/
t；
4), two end flanges of synchronous pressure Heisei shape:
If 4.1), plate heat exchanger pressing plate (2) fillet R0 takes plate heat exchanger pressing plate fillet R0=R-t without specific size requirement,
First pipe axis belling mould (1) and the continuation of the second pipe axis belling mould (3) are fed in opposite directions in the axial direction with identical speed, tubing
(100) free end starts to deform after contacting with plate heat exchanger pressing plate (2), until arc free end and plate heat exchanger pressing plate
(2) it completely attaches to, becomes plane；
If 4.2), plate heat exchanger pressing plate (2) fillet R0 has specific requirement, by the first pipe axis belling mould (1) and the second pipe axis pressure
Punch-pin (3) is changed to the first flattening punch (4) and the second flattening punch (5), the first flattening punch (4) and the second flattening punch
(5) fillet R1=R0+t, the first flattening punch (4) and the second flattening punch (5) with identical speed in the axial direction in opposite directions into
It gives, tubing (100) free end starts to deform after contacting with plate heat exchanger pressing plate (2), until arc free end and plate-type heat-exchange
Device pressing plate (2) completely attaches to, and becomes plane；
5), mold exits, and completes the processing of two end flanges of plate heat exchanger grommet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119625.XA CN107983813B (en) | 2017-11-14 | 2017-11-14 | A kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119625.XA CN107983813B (en) | 2017-11-14 | 2017-11-14 | A kind of method of belt restraining pipe axis pressure synchronous forming plate heat exchanger grommet |
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| CN107983813A CN107983813A (en) | 2018-05-04 |
| CN107983813B true CN107983813B (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR101980626B1 (en) * | 2019-04-10 | 2019-08-30 | 차규석 | Apparatus for curling end portion of spiral elbow pipe |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3422040A1 (en) * | 1984-06-14 | 1985-12-19 | Heinz-Eckhard Dipl.-Ing. 6100 Darmstadt Engel | Reverse forming process for the production of double-walled cylindrical workpieces and a forming tool for this purpose |
| CN2155967Y (en) * | 1993-04-29 | 1994-02-16 | 王亚光 | Edge folding die for stainless steel pipe end |
| CN1498142A (en) * | 2001-04-06 | 2004-05-19 | ����ά�������عɹɷݹ�˾ | Method for producing rolled edge |
| CN102312906A (en) * | 2010-07-07 | 2012-01-11 | 吕学军 | Structure of novel net rack supporting rod |
| CN102836918A (en) * | 2012-09-08 | 2012-12-26 | 诸城市恒信基汽车部件有限公司 | Flanging mould for steel sleeve of steel plate spring |
| CN105013908A (en) * | 2015-07-06 | 2015-11-04 | 苏州宇力管业有限公司 | Combination die and manufacturing technology for flanging short-section molding |
| CN105945110A (en) * | 2016-07-05 | 2016-09-21 | 无锡晶心精密机械有限公司 | Double flanging flange machining device |
| CN106734713A (en) * | 2017-03-20 | 2017-05-31 | 山东胜宁电器有限公司 | A kind of cup processing method |
-
2017
- 2017-11-14 CN CN201711119625.XA patent/CN107983813B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3422040A1 (en) * | 1984-06-14 | 1985-12-19 | Heinz-Eckhard Dipl.-Ing. 6100 Darmstadt Engel | Reverse forming process for the production of double-walled cylindrical workpieces and a forming tool for this purpose |
| CN2155967Y (en) * | 1993-04-29 | 1994-02-16 | 王亚光 | Edge folding die for stainless steel pipe end |
| CN1498142A (en) * | 2001-04-06 | 2004-05-19 | ����ά�������عɹɷݹ�˾ | Method for producing rolled edge |
| CN102312906A (en) * | 2010-07-07 | 2012-01-11 | 吕学军 | Structure of novel net rack supporting rod |
| CN102836918A (en) * | 2012-09-08 | 2012-12-26 | 诸城市恒信基汽车部件有限公司 | Flanging mould for steel sleeve of steel plate spring |
| CN105013908A (en) * | 2015-07-06 | 2015-11-04 | 苏州宇力管业有限公司 | Combination die and manufacturing technology for flanging short-section molding |
| CN105945110A (en) * | 2016-07-05 | 2016-09-21 | 无锡晶心精密机械有限公司 | Double flanging flange machining device |
| CN106734713A (en) * | 2017-03-20 | 2017-05-31 | 山东胜宁电器有限公司 | A kind of cup processing method |
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| CN107983813A (en) | 2018-05-04 |
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