CN106391802B - A kind of impulse- free robustness hemmer and impulse- free robustness flanging process - Google Patents
A kind of impulse- free robustness hemmer and impulse- free robustness flanging process Download PDFInfo
- Publication number
- CN106391802B CN106391802B CN201610936699.1A CN201610936699A CN106391802B CN 106391802 B CN106391802 B CN 106391802B CN 201610936699 A CN201610936699 A CN 201610936699A CN 106391802 B CN106391802 B CN 106391802B
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- China
- Prior art keywords
- impulse
- workpiece
- fixed
- free robustness
- hemmer
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Abstract
The invention discloses a kind of impulse- free robustness hemmer and impulse- free robustness flanging process, comprising: step S1: carrying out pre-punched hole to workpiece, forms fracture belt；Step S2: blade clearance is selected according to workpiece；Step S3: setting formed punch angle of taper, formed punch angle of taper and the bevel angle for the fracture belt that pre-punched hole is formed are almost the same；S4: it puts the workpiece in and carries out flange in impulse- free robustness hemmer.Wherein, the blade clearance is selected as the 18% ~ 20% of the workpiece (100) wall thickness.Under the pre-punched hole state of large fracture belt and big Crack Angle, carrying out the flanging bore that flange obtains again does not have burr, eliminates solder flowing when being conducive to weld copper pipe to remove flash removed and increased milling burr process, production efficiency is effectively increased, is reduced costs simultaneously.
Description
Technical field
The present invention relates to a kind of impulse- free robustness hemmer and impulse- free robustness flanging process.
Background technique
Currently, air-conditioner compressor outer housing requires the air intake duct of welding red copper material, general there are two types of production technologies: a kind of
It is directly to weld copper pipe after compressor case side wall punching；Another kind is that a pre- hole is first rushed on compressor case side wall,
Then the flanging bore for digging an about 3 ~ 4mm high from copper pipe inner wall to copper pipe outer at pre- hole, is then welded on flanging bore
Copper pipe.When welding copper pipe using second method, effective welding surface can increase, be easy to control solder flowing, reduce welding skill
Art difficulty, therefore most of production compressor producer generallys use the form of welding copper pipe after first flanging bore at present.
But most producers go up at edge on the inside of hole when making flanging bore, there is obvious burr.Because in punch-pin
Under squeezing action, material, which is squeezed, generates flowing displacement, and hole inboard portion is squeezed power, and material generates flowing, to generate
Our unwanted burrs.Occur burr in order to prevent, mostly uses spherical, paraboloid or taper punch-pin greatly at present, make to deform
To dispersion, but nonetheless, the position that hole edge is still plastically deformed at first still has some small burrs and generates.Cause
This still needs subsequent increase milling burr process, reduces production efficiency, increases production cost.Moreover, when welding copper pipe,
This burr had not only influenced solder flowing, but also influenced beautiful.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provides a kind of impulse- free robustness hemmer and impulse- free robustness flange
Technique.
Technical solution of the present invention is as follows:
A kind of impulse- free robustness hemmer characterized by comprising pedestal (1), the lower pillar stand being fixed on pedestal (1)
(2), lower pillar stand (2) top is arranged with sleeve, and lower pillar stand (2) lower part is arranged with buffer unit (3)；Lower die holder (10), under described
Die holder (10) is fixed on the pedestal (1), is fixed with punch fixing plate (9) and formed punch (13) on the lower die holder (10),
Described in formed punch (13) be fixed in the punch fixing plate (9)；Movable positioning plate (7), the movable positioning plate (7) pass through bullet
Property device (8) is flexibly connected with the punch fixing plate (9)；Workbench (5) is fixed on workbench (5) lower surface
Upper pillar stand (4)；Upper die holder (11), the upper die holder (11) are fixed on the lower surface of workbench (5), under the upper die holder (11)
Surface is fixed with cavity plate (12) and die block (6), wherein the cavity plate (12) is fixed in the die block (6).
Further, formed punch (13) main body is cylinder, top is taper.
Further, blade clearance is selected as the 18% ~ 20% of the workpiece (100) wall thickness.
Further, the angle of the taper on formed punch (13) top and the bevel angle of fracture belt are almost the same.
Further, the workbench (5) is connected with driving mechanism, can move up and down under outer power drive.
In addition, rising and being characterized in that, comprising: step S1 the present invention also provides a kind of impulse- free robustness flanging process: being carried out to workpiece
Pre-punched hole forms fracture belt；Step S2: blade clearance is selected according to workpiece；Step S3: setting formed punch angle of taper, punching
Head angle of taper and the bevel angle for the fracture belt that pre-punched hole is formed are almost the same；S4: impulse- free robustness hemmer is put the workpiece in
Middle carry out flange.
Further, the blade clearance is selected as the 18% ~ 20% of the workpiece (100) wall thickness.
The beneficial effects of the present invention are: the present invention is under the pre-punched hole state of large fracture belt and big Crack Angle, then turned over
While obtained flanging bore does not have burr, eliminate to remove flash removed and increased milling burr process, when being conducive to weld copper pipe
Solder flowing, effectively increases production efficiency, reduces costs simultaneously.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is pre-punched hole structural schematic diagram；
Fig. 2 is the structural schematic diagram of impulse- free robustness hemmer of the present invention；
Fig. 3 is the decomposition diagram of impulse- free robustness hemmer of the present invention；
Fig. 4 is the cross-sectional view of impulse- free robustness hemmer original state of the present invention；
Fig. 5 is the cross-sectional view of impulse- free robustness hemmer compacting state of the present invention；
Fig. 6 is the flange completed；
Fig. 7 is the flow chart of impulse- free robustness flanging process of the present invention；
Description of symbols: 1- pedestal；2- lower pillar stand；3- buffer unit；4- upper pillar stand；5- workbench；6- cavity plate is solid
Fixed board；7- movable positioning plate；8- elastic device；9- punch fixing plate；10- lower die holder；11- upper die holder；12- cavity plate；13- punching
Head；100- workpiece.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.Therefore, below to attached
The detailed description of the embodiment of the present invention provided in figure is not intended to limit the range of claimed invention, but only
Indicate selected embodiment of the invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two original parts.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Show pre-punched hole structural schematic diagram referring to Fig. 1, Fig. 1, pre-punched hole refer to before flange first from outer surface of workpiece to
Inner surface rushes a pre- hole, and wherein G indicates that the euphotic belt after pre-punched hole, D indicate the fracture belt after pre-punched hole.
We select appropriate blade clearance, can obtain good by finding after a large amount of production practices and experimental analysis
Fracture belt and Crack Angle, this in turn-up process reduce burr generation be advantageous.Wherein, blade clearance refers in cavity plate
Difference between diameter Da and formed punch maximum outside diameter Dc.Formed punch we illustrate tops here tapered, main body is at cylindrical knot
Structure can also use the structure of other similar shapes.
By analyzing it was found that the production of burr in turn-up process can be effectively reduced if selecting biggish blade clearance
It is raw.Currently, the material of refrigeration industry compressor case generally selects common carbon structural steel Q235.In this regard, blade clearance we
Preferably the 18% ~ 20% of workpiece, can obtain the fracture belt and biggish Crack Angle of workpiece about 2/3, and then be turned over
Almost without burr generation when side.
It referring to figure 2-3, is the structural schematic diagram and its decomposition diagram of impulse- free robustness hemmer of the present invention.Wherein, the dress
Setting includes: pedestal 1, and the lower pillar stand 2 being fixed on pedestal 1,2 top of lower pillar stand is arranged with sleeve (not shown), lower pillar stand 2
Lower part is arranged with buffer unit 3, such as spring, rubber etc.；Lower die holder 10, the lower die holder 10 are fixed on the pedestal 1, institute
It states and is fixed with punch fixing plate 9 and formed punch 13 on lower die holder 10, wherein the formed punch 13 is fixed in the punch fixing plate 9；
Movable positioning plate 7, the movable positioning plate 7 pass through elastic device 8(such as spring) it is flexibly connected with the punch fixing plate 9；
Workbench 5, the upper pillar stand 4 being fixed on 5 lower surface of workbench, the workbench 5 are connected with driving mechanism (in figure not
Show), it can move up and down under outer power drive；Upper die holder 11, the upper die holder 11 are fixed on the lower surface of workbench 5, institute
It states 11 lower surface of upper die holder and is fixed with cavity plate 12 and die block 6, wherein the cavity plate 12 is fixed on the die block 6
In.
Wherein, 13 main body of formed punch is cylinder, top is taper.Maximum outside diameter Dc(, that is, cylindrical body of formed punch 13 is outer
Diameter) and the difference (i.e. blade clearance) of internal diameter of cavity plate 12 be selected as the 18% ~ 20% of 100 wall thickness of workpiece.The taper on 13 top of formed punch
Angle it is consistent with the bevel angle of fracture belt as far as possible, the deformation of material is advantageous in this way, also therefore can be reduced burr
Generation.But make the bevel angle of fracture belt is consistent with punch tip angle of taper to will increase flange stroke as far as possible, therefore,
The selection of angle of taper will also consider the influence of mould structure and size.
- 5 illustrate the working principle of impulse- free robustness hemmer of the present invention referring to fig. 4: Fig. 4 is original state schematic diagram,
In, workpiece 100 passes through the location hole (not shown) opened up on workpiece 100 and the positioning device being arranged on hemmer cooperates
Location and installation, then, driving mechanism drive workbench 5 to press down, and die block 6 presses down movable positioning plate 7, formed punch
13 carry out flange to workpiece 100.Fig. 5 is compacting state, and formed punch 13 drives work with rear drive mechanism completely into cavity plate 16
Make platform 5 to exit, flange is completed.
The flange completed by impulse- free robustness hemmer of the present invention is shown referring to Fig. 6, Fig. 6.Wherein, the euphotic belt of pre-punched hole
G and fracture belt D are under the action of formed punch 13, euphotic belt G ' and fracture belt D ' after ultimately forming flange, flange internal surface of hole shape
At bright inner wall DB.
The flow chart of impulse- free robustness flanging process of the present invention is shown referring to Fig. 7, Fig. 7.Wherein, step S1: workpiece is carried out
Pre-punched hole forms fracture belt；Step S2: blade clearance is selected according to workpiece；Step S3: setting formed punch angle of taper, punching
Head angle of taper and the bevel angle for the fracture belt that pre-punched hole is formed are almost the same；S4: impulse- free robustness hemmer is put the workpiece in
Middle carry out flange.
Flanging process principle are as follows: the fracture belt formed after formed punch tapered surface reverse extrusion pre-punched hole, at this time material limit by
Compression, behind round-corner transition face, into after the cylindrical surface for determining flanging bore aperture, the cylindrical surface forward extrusion cylinder of formed punch
The hole edge material of internal wall, and then hole edge material is stretched, while entering the drastic deformation stage.Material fiber quilt at this time
The part material of the compressed displacement of reverse extrusion, when being stretched by forward extrusion, the material of compressed displacement is returned to originally
Position, turn-up process are completed.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of impulse- free robustness hemmer characterized by comprising pedestal (1), the lower pillar stand (2) being fixed on pedestal (1),
Lower pillar stand (2) top is arranged with sleeve, and lower pillar stand (2) lower part is arranged with buffer unit (3)；Lower die holder (10), the lower die holder
(10) it is fixed on the pedestal (1), is fixed with punch fixing plate (9) and formed punch (13) on the lower die holder (10), wherein institute
Formed punch (13) is stated to be fixed in the punch fixing plate (9)；Movable positioning plate (7), the movable positioning plate (7) pass through elasticity dress
(8) are set to be flexibly connected with the punch fixing plate (9)；Workbench (5) is fixed on upper vertical on workbench (5) lower surface
Column (4)；Upper die holder (11), the upper die holder (11) are fixed on the lower surface of workbench (5), upper die holder (11) lower surface
It is fixed with cavity plate (12) and die block (6), wherein the cavity plate (12) is fixed in the die block (6)；It is described
Formed punch (13) main body is cylinder, top is taper；The angle of the taper on formed punch (13) top and the bevel angle of fracture belt
It is almost the same；The workbench (5) is connected with driving mechanism, can move up and down under outer power drive；
The flanging process of the impulse- free robustness hemmer includes: step S1: carrying out pre-punched hole to workpiece, forms fracture belt；Step
S2: blade clearance is selected according to workpiece；Step S3: setting formed punch angle of taper, formed punch angle of taper are formed with pre-punched hole
Fracture belt bevel angle it is almost the same；S4: it puts the workpiece in and carries out flange in impulse- free robustness hemmer；The blade clearance
It is selected as the 18% ~ 20% of the workpiece (100) wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936699.1A CN106391802B (en) | 2016-11-01 | 2016-11-01 | A kind of impulse- free robustness hemmer and impulse- free robustness flanging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936699.1A CN106391802B (en) | 2016-11-01 | 2016-11-01 | A kind of impulse- free robustness hemmer and impulse- free robustness flanging process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106391802A CN106391802A (en) | 2017-02-15 |
| CN106391802B true CN106391802B (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610936699.1A Active CN106391802B (en) | 2016-11-01 | 2016-11-01 | A kind of impulse- free robustness hemmer and impulse- free robustness flanging process |
Country Status (1)
| Country | Link |
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| CN (1) | CN106391802B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113333500A (en) * | 2019-02-22 | 2021-09-03 | 四川龙立可不锈钢管业有限公司 | Method for processing bypass branch pipe of pipeline |
| CN112474994B (en) * | 2020-10-30 | 2022-09-27 | 新乡航空工业(集团)有限公司 | Cone cylinder machining device capable of achieving quick and accurate positioning |
| CN112719087B (en) * | 2020-12-31 | 2023-01-03 | 苏州海陆重工股份有限公司 | Forming method for upper outlet of nuclear power hanging basket barrel |
| CN113714381A (en) * | 2021-07-27 | 2021-11-30 | 上海赛科利汽车模具技术应用有限公司 | Punching method for deburring steel shell |
| CN113996683B (en) * | 2021-09-13 | 2022-07-01 | 广州纬华节能设备有限公司 | Metal pipe side flanging forming device and forming method |
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| EP0004240A1 (en) * | 1978-03-08 | 1979-09-19 | Creusot-Loire | Apparatus for applying collars to very thick walls |
| WO1993019863A1 (en) * | 1992-03-30 | 1993-10-14 | Efes Tex Ag | Device for flaring out pipes |
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| CN206335012U (en) * | 2016-11-01 | 2017-07-18 | 苏州市瑞晟制冷设备有限公司 | A kind of impulse- free robustness hemmer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0773742B2 (en) * | 1989-04-17 | 1995-08-09 | サン・ライズ工業株式会社 | Punch punch |
| JPH11290966A (en) * | 1998-04-08 | 1999-10-26 | Usui Internatl Ind Co Ltd | Method for piercing through hole on peripheral wall of metallic pipe and metalic pipe obtained thereby |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004240A1 (en) * | 1978-03-08 | 1979-09-19 | Creusot-Loire | Apparatus for applying collars to very thick walls |
| WO1993019863A1 (en) * | 1992-03-30 | 1993-10-14 | Efes Tex Ag | Device for flaring out pipes |
| CN201132188Y (en) * | 2007-11-30 | 2008-10-15 | 庄瑞斌 | Die for trimming hole edge |
| CN201271693Y (en) * | 2008-09-03 | 2009-07-15 | 中国华录·松下电子信息有限公司 | Mould apparatus used capable of processing metal plate flanging hole and having deburring function |
| CN201353619Y (en) * | 2009-02-20 | 2009-12-02 | 北京天韵太阳科技发展有限公司 | Flanging die of holes |
| CN102527759A (en) * | 2010-12-14 | 2012-07-04 | 深圳亿和模具制造有限公司 | Hole flanging method and die for forming high flange on thin plate |
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| Publication number | Publication date |
|---|---|
| CN106391802A (en) | 2017-02-15 |
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