CN107803432A - Oblate pipe hole flanging mould - Google Patents
Oblate pipe hole flanging mould Download PDFInfo
- Publication number
- CN107803432A CN107803432A CN201711048283.7A CN201711048283A CN107803432A CN 107803432 A CN107803432 A CN 107803432A CN 201711048283 A CN201711048283 A CN 201711048283A CN 107803432 A CN107803432 A CN 107803432A
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- CN
- China
- Prior art keywords
- hole
- flat
- cavity plate
- longitudinal direction
- longitudinal
- 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.)
- Pending
Links
- 238000004080 punching Methods 0.000 claims abstract description 15
- 239000011324 bead Substances 0.000 claims abstract description 10
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The present invention relates to a kind of oblate pipe hole flanging mould.It is characterized in including U-shaped seat there are two gripping blocks in U-shaped seat, have longitudinal fluting on the top proximal surface of two gripping blocks.There is cavity plate in U-shaped seat, the first press is connected with above cavity plate.There is longitudinal shallow slot among cavity plate lower surface, flat hole is formed by longitudinal shallow slot and flat groove, processed flat tube is placed in flat hole, has punching on the upside of flat tube, there is die orifice hole on the cavity plate relative with punching.There is fixed block behind U-shaped seat, have plug between two gripping blocks and fixed block.Have vertical hole on the upside of corresponding with die orifice hole plug, have in plug first longitudinal direction hole and the two between it is excessive in circular arc.Have behind fixed block into pearl seat, enter on pearl seat to have second longitudinal direction hole.Entering above pearl seat has into the hole of bead, and entering between the die orifice orifice part of the hole of bead and cavity plate has steel ball runner.There is push rod in first longitudinal direction hole, push rod rear end has by cross slider, drift and the second press.Using the present invention, production cost and percent defective can be reduced.
Description
Technical field
The present invention relates to a kind of mould.Specifically, be for by the punching processing on the upper wall of small-bore flat tube into hole flanging
Mould.Turning on the fuel gas inlet interface flat tube upper wall for the gas-cooker being particularly suitable for use in caravan etc small space
Hole machined.
Background technology
Both known about in caravan production industry, the gas-cooker for being cooked for occupant is fitted with caravan.Due to caravan
Interior space is smaller, and the bore of pipe joint --- -- flat tube on gas-cooker for installing gas inlet valve is also very small.Wherein
Flat tube contain two tube walls being parallel to each other and two arc tube walls positioned opposite, process and be used as on one arc tube wall
The hole flanging of air inlet, during installation, internal thread is machined with hole flanging, in order to install air intake valve.Process the conventional method of hole flanging
It is to bore the taper bit of high-speed rotation using hot melt and flat tube mantle friction heat softens flat tube bore area, from one of flat tube
Ecto-entad drills on the outside of arc tube wall.While taper hot melting drill head drills, the surrounding in drilled hole is softened and formed
One outside thrust, so as to form the outward flanging with certain altitude in the surrounding edge in drilled hole, realize hole flanging
Processing.In order to anti-corrosion and it is attractive in appearance for the sake of, flat tube used generally all using galvanized pipe, zinc coat fusing point thereon is low, such as
Fruit is drilled with taper hot melting drill head, and acutely chemical reaction occurs with the oxygen in air at high temperature for the zinc coat in hole flanging area, goes out
Existing combustion phenomena, reaction product zinc oxide is squeezed into hole wall steel matrix or residual hole wall surface, easily causes hole flanging mouth
Crack at edge or cell wall rupture, while Zinc coat is destroyed, have a strong impact on the quality and yield rate of hole flanging.Therefore,
First the zinc coat of the hole flanging surrounding of flat tube to be processed need to just be removed with acid washing method before hole flanging processing, then it is hot with taper
Molten bit bore.To extend the service life of flat tube, in hole flanging process finishing, also need to plate the corresponding site of flat tube again
Zinc.As can be seen here, hole flanging is processed using the above method, step is more, complex process, and production cost is higher.In addition, using hot melt
Drill bit is low to process the flange height that hole flanging is formed, and the screw thread lines of the tapping in highly relatively low flange is short, it is difficult to meets
The installation of valve needs.Due to processing hole flanging using hot melting drill head, the flange thickness formed is difficult to control so that flange is thick
Relatively thin, not only low intensity, and flange is easily broken during tapping is spent, percent defective is high.
The content of the invention
The problem to be solved in the present invention is to provide a kind of oblate pipe hole flanging mould.Using this device come small-bore flat
Hole flanging is processed on pipe, not only step is few, technique is simple, production cost is low, and the flange thickness of the hole flanging processed is thicker, strong
Degree is high, be not easy during tapping to break through, percent defective it is low.
The invention solves above mentioned problem realized by following technical scheme：
The oblate pipe hole flanging of the present invention with die feature is to include U-shaped seat, there is two gripping blocks in U-shaped seat, two gripping blocks it is upper
There is longitudinal fluting on portion's proximal surface, the flat groove for accommodating flat tube is made up of two longitudinal flutings.Have in U-shaped seat for the tight block of pressing clip
Cavity plate, be connected with the first press above cavity plate；There is longitudinal shallow slot the centre of cavity plate lower surface, the bottom land of longitudinal shallow slot and flat groove
Bottom land is arc, and the flat hole being adapted to flat tube is formed by longitudinal shallow slot and flat groove, and being processed flat tube during work is placed in flat hole,
There is punching on flat tube upper side, there is die orifice hole on the cavity plate relative with punching.Be connected with fixed block behind U-shaped seat, two gripping blocks with
There is plug between fixed block, plug rear end is fixed in fixed block, and plug front end is penetrated in the processed flat tube in flat groove；With die orifice
There is vertical hole on the upside of the corresponding plug in hole, there is first longitudinal direction hole, and vertical Kong Yu in the plug between vertical hole and plug rear end
Excessive in streamlined circular arc between one longitudinal hole, the diameter in vertical hole and first longitudinal direction hole is equal, and vertical hole or first longitudinal direction hole
With twice of the diameter difference≤processed flat tube thickness in die orifice hole.It is connected with behind fixed block into pearl seat, enters on pearl seat to have and first
The second longitudinal direction hole of longitudinal hole connection.Enter above pearl seat to have and enter the hole of bead with what second longitudinal direction hole communicated.Entering behind pearl seat has slide cartridge,
The slide cartridge has through hole, and the bore of the through hole is more than first in being vertically arranged on slide cartridge barrel corresponding with first longitudinal direction hole
The diameter of longitudinal hole.There is push rod in first longitudinal direction hole, there is cross slider in through hole, cross slider is connected with the neighboring terminal of push rod.The horizontal stroke
Sliding block is column, and there is the first inclined-plane its one end not being connected with push rod.There are drift, drift lower end in slide cartridge on first inclined-plane
There is the second inclined-plane coordinated with the first inclined-plane, drift upper end is connected with the second press.
Further improvement of the present invention scheme is that have vertical slot on two vertical part medial surfaces of U-shaped seat, with two vertical slot phases
To cavity plate lower surface relative position on have wedge, when cavity plate contacts with gripping block, wedge be stuck in the bottom land of vertical slot with it is corresponding
Between the lateral surface of gripping block, and make to leave gap between gripping block outside the cell wall of vertical slot.
Further improvement of the present invention scheme is that have concentric blind hole among the proximal surface of the gripping block, two concentric blind holes
Bottom hole between have reset spring.
Further improvement of the present invention scheme is to be cased with adjustment block on two flat tubes between gripping block and fixed block.
Further improvement of the present invention scheme is that bottom plate is connected with below U-shaped seat.
As can be seen from the above scheme, because the present invention contains U-shaped seat, there are two gripping blocks in U-shaped seat, two gripping blocks
There is longitudinal fluting on the proximal surface of top, the flat groove for accommodating flat tube is made up of two longitudinal flutings；Have in U-shaped seat tight for pressing clip
The cavity plate of block, cavity plate top are connected with the first press；There are longitudinal shallow slot, the bottom land of longitudinal shallow slot and flat groove in the centre of cavity plate lower surface
Bottom land be arc, the flat hole being adapted to flat tube is formed by longitudinal shallow slot and flat groove, being processed flat tube during work is placed in flat hole
It is interior, there is punching on flat tube upper side, there is die orifice hole on the cavity plate relative with punching；Fixed block, two gripping blocks are connected with behind U-shaped seat
There is plug between fixed block, plug rear end is fixed in fixed block, and plug front end is penetrated in the processed flat tube in flat groove；With mould
Have vertical hole on the upside of the corresponding plug of oral pore, there is first longitudinal direction hole in the plug between vertical hole and plug rear end, and vertical hole with
Excessive in streamlined circular arc between first longitudinal direction hole, the diameter in vertical hole and first longitudinal direction hole is equal, and vertical hole or first longitudinal direction
Twice of the diameter difference in hole and die orifice hole≤processed flat tube thickness；It is connected with behind fixed block into pearl seat, enters on pearl seat to have and the
The second longitudinal direction hole of one longitudinal hole connection；Enter above pearl seat to have and enter the hole of bead with what second longitudinal direction hole communicated；Entering behind pearl seat has cunning
Cylinder, the slide cartridge have a through hole in being vertically arranged on slide cartridge barrel corresponding with first longitudinal direction hole, and the bore of the through hole is more than the
The diameter of one longitudinal hole；There is push rod in first longitudinal direction hole, there is cross slider in through hole, cross slider is connected with the neighboring terminal of push rod；It is described
Cross slider is column, and there is the first inclined-plane its one end not being connected with push rod；There is drift in slide cartridge on first inclined-plane, under drift
There is the second inclined-plane coordinated with the first inclined-plane at end, and drift upper end is connected with the second press.
During work, the steel ball entered in the hole of bead is passed sequentially through first using the second press, drift, cross slider and push rod
Streamlined circular arc transition zone and vertical hole between longitudinal hole, vertical hole and first longitudinal direction hole, finally make steel ball from vertical hole Nei Ding
Go out, only need a step, be achieved that the flange processing of punching on flat tube, compared with background technology, step is few, and technique is simple, production
Cost is low.The steel ball entered in the hole of bead is passed sequentially through using the second press, drift, cross slider and push rod due to of the invention again
Streamlined circular arc transition zone and vertical hole between first longitudinal direction hole, vertical hole and first longitudinal direction hole, finally make steel ball from vertical hole
Interior ejection, the ecto-entad for becoming traditional are processed as processing from inside to outside, are not required to the equipment such as taper hot melting drill head, the flange formed
Height is high, the screw thread lines length of the tapping in highly higher flange, can meet the installation needs of valve.Due to being bored without hot melt
Head processes hole flanging, and the flange thickness formed is substantially identical with the pipe thickness of processed flat tube, thickness is thicker, intensity compared with
It is high.Again by the pipe thickness of the flange thickness and processed flat tube that are formed is essentially identical, flange easily quilt when avoiding tapping
Situation about breaking through occurs, so as to greatly reduce percent defective.
Brief description of the drawings
Fig. 1 is the oblate pipe hole flanging mould schematic diagram of the present invention；
Fig. 2 is Fig. 1 left view schematic diagram.
Embodiment
As depicted in figs. 1 and 2, oblate pipe hole flanging mould of the invention contains U-shaped seat 2, and two are provided with U-shaped seat 2
Gripping block 3, longitudinal fluting is machined with the top proximal surface of two gripping blocks 3, by being formed after the notch docking of two longitudinal flutings
One flat groove that can accommodate processed flat tube 4.The cavity plate 7 for compressing gripping block 3 is provided with U-shaped seat 2, the cavity plate 7 is
Tabular, its top are provided with the first press 6.First press 6 is pressurized cylinder, the piston rod of pressurized cylinder down and with cavity plate 7
It is connected, by the flexible of piston rod, to drive the flexible of cavity plate 7.The centre of the lower surface of cavity plate 7 is machined with longitudinal shallow slot, longitudinal direction
The bottom land of the bottom land of shallow slot and flat groove is arc, and the flat hole being adapted to flat tube is formed by longitudinal shallow slot and flat groove.During work, quilt
Processing flat tube 4 is placed in flat hole.It is processed on the upper side of flat tube 4 and punching has been pre-machined, is processed on the cavity plate 7 relative with punching
There is die orifice hole 5.
U-shaped seat 2 is connected with fixed block 10 below, plug 9 is provided between two gripping blocks 3 and fixed block 10, the rear end of plug 9 is fixed
In fixed block 10, the front end of plug 9 is penetrated in the processed flat tube 4 in flat groove.The upside of plug 9 corresponding with die orifice hole 5 processes
There is vertical hole 91, first longitudinal direction hole is machined with the plug 9 between vertical hole 91 and the rear end of plug 9, and vertical hole 91 and first is vertical
To between hole be in streamlined circular arc it is excessive.Vertical hole 91 is equal with the diameter in first longitudinal direction hole, vertical hole 91 or first longitudinal direction hole with
Twice of the diameter difference in die orifice hole 5≤processed thickness of flat tube 4.In the present embodiment, vertical hole 91 or first longitudinal direction hole and mould
The diameter difference of oral pore 5 is be processed the thickness of flat tube 4 1.8 times.Fixed block 10 is provided with into pearl seat 13 below, and it is block that this, which enters pearl seat,
Shape, it links together by bolt and fixed block 10.Enter on pearl seat 13 be machined with it is coaxial with first longitudinal direction hole and connect
Two longitudinal holes.Enter pearl seat 13 above be machined with communicated with second longitudinal direction hole enter the hole of bead 11.Enter pearl seat 13 has slide cartridge 24, institute below
Slide cartridge 24 is stated in being vertically arranged, there is through hole on the barrel of slide cartridge 24 corresponding with first longitudinal direction hole, and the bore of the through hole is more than the
The diameter of one longitudinal hole；There is push rod 14 in first longitudinal direction hole, there is cross slider 25, the neighboring terminal phase of cross slider 25 and push rod 14 in through hole
Even；The cross slider 25 is column, and there is the first inclined-plane 27 its one end not being connected with push rod 14；Slide cartridge on first inclined-plane 27
There is drift 23 in 24, there is the second inclined-plane 26 coordinated with the first inclined-plane 27 the lower end of drift 23, and the upper end of drift 23 is connected with the second press
22。
Wherein, vertical slot 19 is machined with two vertical part medial surfaces of U-shaped seat 2, the cavity plate 7 relative with two vertical slots 19
Wedge 18 is connected with the relative position of lower surface, when the lower surface of cavity plate 7 contacts with the top of gripping block 3, two wedges 18 block respectively
Between the bottom land of corresponding vertical slot 19 and the lateral surface of corresponding gripping block 3, and make to stay between gripping block 3 outside the cell wall of vertical slot 19
There is gap 20.
For ease of enabling two gripping blocks to automatically revert to original position after a work pieces process, in the gripping block
Concentric blind hole is machined among proximal surface, reset spring is installed between the bottom hole of two concentric blind holes.
Vertical hole is machined with the fixed block 10, the front end of plug 9 penetrates vertical hole from the rear side of fixed block 10 and is processed successively
In flat tube 4.
To adapt to the processing needs that different length is processed flat tube 4, being processed between two gripping blocks 3 and fixed block 10
Adjustment block 16 is cased with flat tube 4.
For ease of being connected with lathe, bottom plate 1 is connected with below U-shaped seat 2.
During work, first pass through the controller separately set and start press 6 and hold out against cylinder 15, press 6 is increased and drive cavity plate 7
Depart from gripping block 3, and processed flat tube 4 be enclosed on plug 9, and make the punching that is processed on the upside arcwall of flat tube 4 with it is recessed
Die orifice hole 5 on mould 7 is corresponding.Then, restart press 6 and drive cavity plate 7 to decline, until making cavity plate 7 be pressed on gripping block 3
On.Afterwards, start hold out against cylinder 15, by hold out against cylinder 15 drive push rod 14 outwards be reduced into pearl seat 13 enter the hole of bead 11 after,
And steel ball 12 is put into the hole of bead 11.And then start and hold out against cylinder 15, make its piston rod drive push rod 14 inwardly to stretch out simultaneously
The steel ball 12 that will enter in plug 9 push up vertical hole 91 to plug 9, until make steel ball 12 by the vertical hole 91 of plug 9 and by
After processing the punching on the upper side wall of flat tube 4, finally ejected at the die orifice hole 5 on cavity plate 7.So as to by the upside of processed flat tube 4
Punching processing on wall is into the hole flanging with outward flanging.
Claims (6)
1. oblate pipe hole flanging mould, it is characterised in that including U-shaped seat, there is two gripping blocks, the top of two gripping blocks in U-shaped seat
There is longitudinal fluting on proximal surface, the flat groove for accommodating flat tube is made up of two longitudinal flutings；Have in U-shaped seat for the tight block of pressing clip
Cavity plate, cavity plate top are connected with the first press；There is the groove of longitudinal shallow slot, the bottom land of longitudinal shallow slot and flat groove the centre of cavity plate lower surface
Bottom is arc, and the flat hole being adapted to flat tube is formed by longitudinal shallow slot and flat groove, and being processed flat tube during work is placed in flat hole, flat
There is punching on pipe upper side, there is die orifice hole on the cavity plate relative with punching；Fixed block is connected with behind U-shaped seat, two gripping blocks are with consolidating
Determine have plug between block, plug rear end is fixed in fixed block, and plug front end is penetrated in the processed flat tube in flat groove；With die orifice hole
There is vertical hole on the upside of corresponding plug, there is first longitudinal direction hole, and vertical hole and first in the plug between vertical hole and plug rear end
Excessive in streamlined circular arc between longitudinal hole, the diameter in vertical hole and first longitudinal direction hole is equal, and vertical hole or first longitudinal direction hole with
Twice of the diameter difference in die orifice hole≤processed flat tube thickness；It is connected with behind fixed block into pearl seat, enters on pearl seat to have and indulged with first
The second longitudinal direction hole connected to hole；Enter above pearl seat to have and enter the hole of bead with what second longitudinal direction hole communicated；Entering behind pearl seat has slide cartridge, institute
Slide cartridge is stated in being vertically arranged, has through hole on slide cartridge barrel corresponding with first longitudinal direction hole, and the bore of the through hole is more than first and indulged
To the diameter in hole；There is push rod in first longitudinal direction hole, there is cross slider in through hole, cross slider is connected with the neighboring terminal of push rod；The sideslip
Block is column, and there is the first inclined-plane its one end not being connected with push rod；There is drift in slide cartridge on first inclined-plane, drift lower end has
The second inclined-plane coordinated with the first inclined-plane, drift upper end is connected with the second press.
2. oblate pipe hole flanging mould according to claim 1, it is characterised in that on two vertical part medial surfaces of U-shaped seat
There is vertical slot, have wedge in the cavity plate lower surface relative position relative with two vertical slots, when cavity plate contacts with gripping block, wedge card
Between the bottom land of vertical slot and the lateral surface of corresponding gripping block, and make to leave gap between gripping block outside the cell wall of vertical slot.
3. oblate pipe hole flanging mould according to claim 1, it is characterised in that have among the proximal surface of the gripping block
Concentric blind hole, there is reset spring between the bottom hole of two concentric blind holes.
4. the oblate pipe hole flanging mould according to any one of claim 1 ~ 3, it is characterised in that two gripping blocks are with consolidating
Determine to be cased with adjustment block on the flat tube between block.
5. the oblate pipe hole flanging mould according to any one of claim 1 ~ 3, it is characterised in that bottom is connected with below U-shaped seat
Plate.
6. oblate pipe hole flanging mould according to claim 4, it is characterised in that bottom plate is connected with below U-shaped seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711048283.7A CN107803432A (en) | 2017-10-31 | 2017-10-31 | Oblate pipe hole flanging mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711048283.7A CN107803432A (en) | 2017-10-31 | 2017-10-31 | Oblate pipe hole flanging mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107803432A true CN107803432A (en) | 2018-03-16 |
Family
ID=61583160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711048283.7A Pending CN107803432A (en) | 2017-10-31 | 2017-10-31 | Oblate pipe hole flanging mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107803432A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE401475C (en) * | 1922-03-19 | 1924-09-04 | Hymmen Theodor | Device for the production of nozzles from the full wall of hollow bodies |
| FR1217174A (en) * | 1958-12-02 | 1960-05-02 | Method and devices for manufacturing tubing in a thin tube | |
| JPH08197151A (en) * | 1995-01-26 | 1996-08-06 | Daito:Kk | Burring method and jig used in burring and device for burring |
| DE102004028078A1 (en) * | 2004-06-09 | 2006-01-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Production of a collar section around an opening on a surface of a workpiece comprises applying a fluid to a molding element to press the molding element partially through the opening and deforming the workpiece |
| CN201969773U (en) * | 2011-01-26 | 2011-09-14 | 成都万荣科技有限责任公司 | Single-hole vertical punching die for tube |
| CN104841722A (en) * | 2015-04-20 | 2015-08-19 | 张中平 | Production method of pipeline connecting piece and pipeline connecting piece made by method |
| CN204867111U (en) * | 2015-08-20 | 2015-12-16 | 成都市鸿侠科技有限责任公司 | Thin wall spare side opening turn -ups forming die |
-
2017
- 2017-10-31 CN CN201711048283.7A patent/CN107803432A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE401475C (en) * | 1922-03-19 | 1924-09-04 | Hymmen Theodor | Device for the production of nozzles from the full wall of hollow bodies |
| FR1217174A (en) * | 1958-12-02 | 1960-05-02 | Method and devices for manufacturing tubing in a thin tube | |
| JPH08197151A (en) * | 1995-01-26 | 1996-08-06 | Daito:Kk | Burring method and jig used in burring and device for burring |
| DE102004028078A1 (en) * | 2004-06-09 | 2006-01-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Production of a collar section around an opening on a surface of a workpiece comprises applying a fluid to a molding element to press the molding element partially through the opening and deforming the workpiece |
| CN201969773U (en) * | 2011-01-26 | 2011-09-14 | 成都万荣科技有限责任公司 | Single-hole vertical punching die for tube |
| CN104841722A (en) * | 2015-04-20 | 2015-08-19 | 张中平 | Production method of pipeline connecting piece and pipeline connecting piece made by method |
| CN204867111U (en) * | 2015-08-20 | 2015-12-16 | 成都市鸿侠科技有限责任公司 | Thin wall spare side opening turn -ups forming die |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180316 |
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| WD01 | Invention patent application deemed withdrawn after publication |