CN106041426B - A kind of processing method of cone sealing head - Google Patents
A kind of processing method of cone sealing head Download PDFInfo
- Publication number
- CN106041426B CN106041426B CN201610483011.9A CN201610483011A CN106041426B CN 106041426 B CN106041426 B CN 106041426B CN 201610483011 A CN201610483011 A CN 201610483011A CN 106041426 B CN106041426 B CN 106041426B
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- China
- Prior art keywords
- flanging
- conical shell
- cone
- blank
- sealing head
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The present invention provides a kind of processing method of cone sealing head, includes the following steps：Blanking, roll bending, welding, molding, drop stamping, groove and docking.The processing method of the present invention, cone sealing head is welded after being processed respectively by conical shell and flanging, taper before flanging punching press is less than the taper of conical shell, pass through the stamping die of design specialized, it can ensure that the ratio of the small bore end size after flanging punching press and the small bore end size before punching press is in range not easy to crack, compared with the method that traditional direct osculum end to conical shell carries out punching press reaming, good reliability, product rejection rate is low.
Description
Technical field
The present invention relates to a kind of processing methods of end socket, particularly, are related to a kind of processing method of cone sealing head.
Background technology
End socket is indispensable important in all conglomerate pressure vessel and equipments such as petrochemical industry, atomic energy, food pharmaceutical
Component, it is the end cap of pressure vessel, is a main pressure-containing member of pressure vessel, and the quality of end socket is directly related to pressure
The long-term safety of container.
Cone sealing head includes conical shell and flanging, and flanging is arranged on the osculum end of cone sealing head.In general, the processing method of flanging
It is that the direct punching press reaming in the osculum end of conical shell is process, when the taper of conical shell is excessive, flanging is easy to excessive because deforming
It cracks more than the elongation percentage of material, end socket is caused to scrap.Detailed, Fig. 1 is seen, is the cone processed using traditional method
The structure diagram of body end socket, wherein dotted portion represent the structure at the osculum end before undressed of conical shell 10 ', the osculum end
A diameter of d1 ', the height of flanging 20 ' is h, a diameter of d2 ' of osculum of flanging 20 ', for carbon steel material after punching press reaming
Speech, according to experiment, for the value γ ' of d2 '/d1 ' when no more than 1.2, the chance that flanging 20 ' cracks is smaller.The height h of flanging 20 '
One timing, the taper of conical shell 10 ' is bigger, then the diameter d2 ' of flanging 20 ' is bigger after reaming, and γ ' values are bigger.When γ ' values are more than
When 1.2, the cracking chance of flanging 20 ' increases, and easily leads to product rejection.
Invention content
The technical problems to be solved by the invention are：In order to overcome drawbacks described above in the prior art, one is now provided
The processing method of kind cone sealing head, reduces product rejection rate.
The present invention solves its technical problem technical solution to be taken：A kind of processing method of cone sealing head, packet
Include following steps,
S10：Blanking cuts plank according to the size of design, is respectively formed the conical shell blank with sector structure
With the flanging blank with sector structure.
S20：Roll bending carries out bending to conical shell blank and flanging blank, datum line, conical shell blank is drawn on conical shell blank
Lower section pad put two pieces of backing plates, two backing plate intermediate gaps are arranged above pressing plate, and pressing plate is pressed in along datum line on conical shell blank,
So as to bending conical shell blank, by repeatedly suppressing, conical shell blank becomes cone structure, in the step, the roll bending side of flanging blank
Method is identical with conical shell blank.
S30：Conical shell blank after step roll bending, is welded into the conical shell of cone structure, flanging blank is welded by welding
The flanging of cone structure, the taper of flanging are less than the taper of conical shell.
S40：Molding makes the stamping die of flanging, and stamping die includes lower die and upper mold, and the cavity of lower die is included by upper
The straight section chamber and cone section chamber being sequentially communicated under and, the taper for boring section chamber is identical with the taper of conical shell, diameter d2 and the folding of straight section chamber
The ratio γ of the osculum end diameter d1 on side meets 1<γ≤1.2, upper mold are matched with lower die.
S50：Flanging is carried out drop stamping by drop stamping using the stamping die in step S40 and press machine.
S60：Groove, the port of conduplication side carry out groove processing.
S70：Docking welds the osculum end of the big opening end of flanging and conical shell, cone sealing head final molding.
Datum line is drawn on conical shell blank, the lower section pad of conical shell blank puts two pieces of backing plates, and two backing plate intermediate gaps are just
Top sets pressing plate, and pressing plate is pressed in along datum line on conical shell blank, so as to bending conical shell blank, by repeatedly suppressing, conical shell base
Material becomes cone structure, and in the step, the roll bending method of flanging blank is identical with conical shell blank.
Further, in the step S50, upper die and lower die are mounted on press machine, flanging be placed in upper mold and lower die it
Between, after flanging heating, conduplication side carries out punching press.
Further, in the step S50, by stamping process twice, using to press at a slow speed for the first time makes flanging correct
Positioning, second of fast ram make flanging just one-step forming.
Further, it in the step S50, robs conduplication side using baking and is evenly heated, measured, added by temperature measuring device
Heat to 500 DEG C beginning punching presses.
Further, adapted numerically controlled lathe carries out groove processing in the step S60.
Further, in the step S40, straight section chamber is seamlessly transitted with boring the junction of section chamber.
Further, in the step S10, the material of plank is carbon steel.
The beneficial effects of the invention are as follows：A kind of processing method of cone sealing head provided by the invention, cone sealing head are by boring
Shell and flanging are welded after processing respectively, and the taper before flanging punching press is less than the taper of conical shell, passes through the punching press of design specialized
Mold can ensure that the ratio of the small bore end size before the small bore end size ratio punching press after flanging punching press is in model not easy to crack
In enclosing, compared with the method that traditional direct osculum end to conical shell carries out punching press reaming, good reliability, product rejection rate is low.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram using the cone sealing head of conventional method processing；
Fig. 2 is a kind of flow chart of the processing method of cone sealing head of the present invention；
Fig. 3 is schematic diagram of the conical shell blank to welding fabrication for the process of conical shell in the present invention；
Fig. 4 is schematic diagram of the flanging blank to welding fabrication for the process of flanging in the present invention；
Fig. 5 is the structure diagram of flanging punching press in Fig. 4；
Fig. 6 is the structure diagram of cone sealing head being process using the method for the present invention.
In figure：1st, conical shell blank, 10, conical shell, 11, datum line, 12, backing plate, 13, pressing plate, 2, flanging blank, 20, flanging,
3rd, lower die, 31, straight section chamber, 32, cone section chamber, 4, upper mold, 10 ', conical shell, 20 ', flanging.
Specific embodiment
Presently in connection with attached drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows composition related to the present invention.
It please refers to shown in Fig. 2-Fig. 6, the present invention provides a kind of processing methods of cone sealing head, mainly include following step
Suddenly,
S10：Blanking is cut plank according to the size of design cone sealing head, is respectively formed with sector structure
Conical shell blank 1 and the flanging blank 2 with sector structure.The material of conical shell blank 1 and flanging blank 2 is selected as carbon steel.
S20：Roll bending draws datum line 11 to conical shell blank 1, specific as shown in figure 3, datum line 11 in the present embodiment
Quantity is 40, and the extended line of each datum line 11 passes through the center of circle of the sector structure of conical shell blank 1.
In bending process, in the lower section of conical shell blank 1, pad puts two pieces of backing plates 12, is set right over two backing plates, 12 intermediate gaps
Pressing plate 13 is put, pressing plate 13 is pressed in along datum line 11 on conical shell blank 1, and the lower section of pressed part is due to no backing plate on conical shell blank 1
12 keep out effect and deform, and conical shell blank 1 acts on, conical shell blank 1 along 11 bending of datum line by the bending of different location
It is gradually converted into cone structure.Preferably, the pressure surface of pressing plate 13 is more sharp cutting edge, to realize that better bending is imitated
Fruit.
In this step, the bending process of flanging blank 2 is the same as the bending process of above-mentioned conical shell blank 1.Which is not described herein again.It should
The roll bending process of step, it is simple and quick, there is very strong operability.
S30：The both sides of conical shell blank 1 are welded in welding, the conical shell 10 with cone structure are formed, by flanging blank 2
Both sides are welded, and form the flanging 20 with cone structure, and the taper of flanging 20 is less than the taper of conical shell 10.In the present embodiment, cone
The taper of shell 10 is 120 °, and the taper of flanging 20 is 50 °.
S40：Molding, makes the stamping die of flanging 20, and stamping die includes lower die 3 and upper mold 4, the cavity packet of lower die 3
It includes straight section chamber 31 and is connected with straight section chamber 31 and set on the cone section chamber 32 of 31 top of straight section chamber, bore the taper of section chamber 32 and conical shell 10
Taper it is identical, can be connected smoothly with will pass through the flanging after punching press 20 with conical shell 20.
As shown in figure 5, the ratio γ of the diameter d2 of the straight section chamber 31 and osculum end diameter d1 of flanging 20 meets 1<γ≤
1.2, cracking phenomena will not occur for flanging 20 during ensuring punching press.Upper mold 4 is matched with lower die 3.
Further, as shown in figure 5, straight section chamber 31 is seamlessly transitted with boring the junction of section chamber 32.
S50：Upper mold 4 and lower die 3 are mounted on press machine by drop stamping, and flanging 20 is placed between upper mold 4 and lower die 3, profit
Conduplication side 20 is robbed with baking to be evenly heated, is measured by temperature measuring device, starts punching press in 500 degrees centigrades.
In the step, by stamping process twice, using to press at a slow speed for the first time enables flanging 20 to be properly positioned, and makes it
Center line and the die cavity centerline collineation of lower die 3 avoid flanging 20 eccentric, so as to influence subsequently to use；Second using quick
Punching press, the first one-step forming by the extruding of upper mold 4 and lower die 3, reaming effect.
The press machine used in the present embodiment stretches large-tonnage precision liquid press for numerical control, while ensureing punching press power
It ensure that punching precision.
S60：Groove, for the ease of the welding of 20 two-port of flanging, the port of adapted numerically controlled lathe conduplication side 20 carries out slope
Mouth processing.
S70：Docking, by the osculum end of the big opening end of flanging 20 and conical shell 10 by being welded and fixed, cone sealing head finally into
Type.
The cone angle of conical shell 10 is obtuse angle in the embodiment of the present invention, is easily caused out by way of direct punching press reaming
It splits, therefore, the present embodiment splices after conical shell 10 is processed respectively with flanging 20.Conical shell 10 can be operated direct by roll bending
Formed, the cone angle of flanging 20 can easily make it is at an acute angle, it is certain in the height of flanging 20 by the stamping die of design specialized
In the case of, the taper of conical shell 10 is smaller, then the bore dia of flanging 20 is smaller after reaming.Thereby it is ensured that after 20 reaming of flanging
Bore dia d2 and reaming before the ratio γ of bore dia d1 be in range not easy to crack, cracking chance reduction, so as to drop
The scrappage of low product.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which its technical scope is determined according to right.
Claims (7)
1. a kind of processing method of cone sealing head, includes the following steps,
S10：Blanking cuts plank according to the size of design, be respectively formed conical shell blank (1) with sector structure and
Flanging blank (2) with sector structure；
S20：Roll bending carries out bending to conical shell blank (1) and flanging blank (2), datum line is drawn on conical shell blank (1)
(11), the lower section pad of conical shell blank (1) puts two pieces of backing plates (12), and two backing plates (12) intermediate gaps are arranged above pressing plate
(13), pressing plate (13) is pressed in along datum line (11) on conical shell blank (1), thus bending conical shell blank (1), by repeatedly suppressing,
Conical shell blank (1) is as cone structure, and in the step, the roll bending method of flanging blank (2) is identical with conical shell blank (1)；
S30：Conical shell blank (1) after step S20 roll bendings is welded into the conical shell (10) of cone structure, by flanging blank by welding
(2) flanging (20) of cone structure is welded into, the taper of flanging (20) is less than the taper of conical shell (10)；
S40：Molding, makes the stamping die of flanging (20), and stamping die includes lower die (3) and upper mold (4), the type of lower die (3)
Chamber includes the straight section chamber (31) being sequentially communicated from top to bottom and cone section chamber (32), the taper of cone section chamber (32) and the cone of conical shell (10)
Spend identical, the ratio γ satisfactions 1 of the diameter d2 of straight section chamber (31) and the osculum end diameter d1 of flanging (20)<γ≤1.2, upper mold
(4) it is matched with lower die (3)；
S50：Flanging (20) is carried out drop stamping by drop stamping using the stamping die in step S40 and press machine；
S60：Groove, the port of conduplication side (20) carry out groove processing；
S70：Docking welds the osculum end of the big opening end of flanging (20) and conical shell (10), cone sealing head final molding.
2. a kind of processing method of cone sealing head as described in claim 1, it is characterised in that：In the step S50, upper mold
(4) and lower die (3) is on press machine, and flanging (20) is placed between upper mold (4) and lower die (3), right after flanging (20) heating
Flanging (20) carries out punching press.
3. a kind of processing method of cone sealing head as claimed in claim 2, it is characterised in that：In the step S50, by two
Secondary stamping process, using to press at a slow speed for the first time is properly positioned flanging (20), second of fast ram, makes flanging (20) preliminary
Molding.
4. a kind of processing method of cone sealing head as claimed in claim 3, it is characterised in that：In the step S50, baking is utilized
It robs conduplication side (20) to be evenly heated, be measured by temperature measuring device, be heated to 500 DEG C of beginning punching presses.
5. a kind of processing method of cone sealing head as described in claim 1, it is characterised in that：Adapted number in the step S60
It controls lathe and carries out groove processing.
6. a kind of processing method of cone sealing head as described in claim 1, it is characterised in that：In the step S40, straight section chamber
(31) junction with cone section chamber (32) seamlessly transits.
7. a kind of processing method of cone sealing head as described in claim 1, it is characterised in that：In the step S10, plank
Material is carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483011.9A CN106041426B (en) | 2016-06-27 | 2016-06-27 | A kind of processing method of cone sealing head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483011.9A CN106041426B (en) | 2016-06-27 | 2016-06-27 | A kind of processing method of cone sealing head |
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| CN106041426A CN106041426A (en) | 2016-10-26 |
| CN106041426B true CN106041426B (en) | 2018-07-03 |
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| CN111169838B (en) * | 2018-11-09 | 2021-12-14 | 南通中集安瑞科食品装备有限公司 | End socket and forming method thereof |
| CN109531057B (en) * | 2018-11-12 | 2020-07-31 | 常州旷达威德机械有限公司 | Machining method of 9Ni steel end socket |
| CN109877547A (en) * | 2019-04-24 | 2019-06-14 | 哈尔滨汽轮机厂有限责任公司 | A kind of preparation method of extraction steam pipe |
| CN110102984A (en) * | 2019-06-04 | 2019-08-09 | 宜兴华威封头有限公司 | A kind of cone coiled forming technology of dome head |
| CN113523713B (en) * | 2021-05-28 | 2022-04-29 | 常州旷达威德机械有限公司 | Method for processing eccentric cone |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1101912B1 (en) * | 1996-07-06 | 2005-08-31 | J. Eberspächer GmbH & Co. | Silencer comprising external and internal half shells |
| DE29906170U1 (en) * | 1998-04-12 | 1999-09-23 | Schmalbach-Lubeca AG, 40880 Ratingen | Closure cover with stackable side play |
| CN102658463A (en) * | 2012-06-01 | 2012-09-12 | 南通虹波机械有限公司 | Machining process of propeller shell |
| CN104384833A (en) * | 2014-09-19 | 2015-03-04 | 常州旷达威德机械有限公司 | Machining process for strain-hardening seal head |
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