CN109277671A - Titanium alloy thin wall spherical shell automatic soldering device - Google Patents
Titanium alloy thin wall spherical shell automatic soldering device Download PDFInfo
- Publication number
- CN109277671A CN109277671A CN201811168932.1A CN201811168932A CN109277671A CN 109277671 A CN109277671 A CN 109277671A CN 201811168932 A CN201811168932 A CN 201811168932A CN 109277671 A CN109277671 A CN 109277671A
- Authority
- CN
- China
- Prior art keywords
- spherical shell
- stem nut
- titanium alloy
- welding
- pressure plate
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/321—Protecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention provides a kind of titanium alloy thin wall spherical shell automatic soldering device and welding methods.The outer mold surface of inner pallet is spherical surface, it is ensured that fits closely with spherical shell, bottle neck, and realizes the effect of support spherical shell and bottle neck；The contact surface of external pressure plate and spherical shell is spherical surface, plays the role of compressing spherical shell；Upper press cover and bottle neck contact surface are arc surface, play the role of compressing bottle neck；Interior stem nut is used to make it compress bottle neck according to the position that the size of bottle neck adjusts upper press cover；Outer stem nut is used to make it compress spherical shell according to the position that the size of spherical shell adjusts external pressure plate；Interior bar is for connecting interior stem nut, upper press cover and chassis；Outer bar is for connecting outer stem nut, external pressure plate and chassis.Welder structure of the present invention is simple, reliable, and welding method stability is good.
Description
Technical field
The present invention relates to mechanical manufacturing fields, and in particular, to titanium alloy thin wall spherical shell automatic soldering device.
Background technique
Currently, titanium alloy structure obtains more and more extensive use in field of aerospace.Micro-nano satellite promotes tank master
Want storage and supply of the task for propulsion subsystem propellant.Tank is mainly made of upper and lower spherical shell, middle ring and bottle neck,
In need to be welded between upper spherical shell and bottle neck.Since titanium alloy is easy to happen oxidation at high temperature, and manual welding installation drags cover
Method that is more difficult, therefore automatic welding need to being used.
Through the retrieval to the domestic and international prior art, currently without discovery with the explanation or report of the invention patent similar techniques
Road is also not yet collected into data similar both at home and abroad.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of tippings of titanium alloy thin wall spherical shell automatic welding
It sets.
A kind of titanium alloy thin wall spherical shell automatic soldering device provided according to the present invention, including interior bar 1, interior stem nut 2, on
Gland 3, inner pallet 4, chassis 5, outer bar 6, external pressure plate 7, outer stem nut 8；
Interior bar 1 is upwardly extended by chassis 5；
External pressure plate 7 is installed by outer stem nut 8 with chassis 5；
Inner pallet 4 is arranged on chassis 5, and opposite with external pressure plate 7；
The upper end of interior bar 1 is equipped with interior stem nut 2, upper press cover 3.
Preferably, the outer mold surface of inner pallet 4 is spherical surface, to ensure to fit closely with spherical shell inner mold face；External pressure plate 7 plays pressure
The effect of tight spherical shell；Upper press cover 3 and spherical shell contact surface are arc surface, play the role of compressing spherical shell；Interior bar 1 connects interior stem nut
2, upper press cover 3 and chassis 5；Outer bar 6 connects outer stem nut 8, external pressure plate 7 and chassis 5.
Preferably, the inner pallet 4 is provided with a circle air channel, for leading to inert gas shielding spherical shell back of weld, keeps away
Exempt from backside oxide in titanium alloy spherical shell welding process.
Preferably, the bottom of the inner pallet 4 is equipped with air inlet mouth of pipe, is connected with air channel, for logical protection gas.
Preferably, the position that the interior stem nut 2 is used to adjust upper press cover 3 according to spherical shell size compresses spherical shell.
Preferably, the position that the outer stem nut 8 is used to adjust external pressure plate 7 according to the size of spherical shell compresses spherical shell.
It preferably, further include tail protective cover, the tail protective cover is fixed on torch nozzle, is driven by welding gun
Realize protection.
A kind of welding method using above-mentioned titanium alloy spherical shell automatic soldering device provided according to the present invention, including such as
Lower step:
Spherical shell to be welded is placed on inner pallet, adjustment spherical shell position so that spherical shell is located at Neto disk center, and ensure spherical shell,
Both inner pallets fit closely；
External pressure plate is pressed on spherical shell, tightening outer stem nut compresses spherical shell；
By bottle neck assembly on spherical shell to be welded, and weld seam is made to be located at inner pallet air channel center；
Upper press cover is pressed on bottle neck, tightening interior stem nut compresses bottle neck；
Argon gas is discharged in advance as back protection gas to inner pallet air channel by tracheae, and welding gun is axis around weld seam one using interior bar
Zhou Jinhang automatic welding；
Tail is carried out by the argon gas that tail protective cover exports in cooling commissure and protects gas.
Preferably, pickling degreasing is carried out to part to be welded spherical shell surface before welding, pickling solution is 4~6% hydrofluoric acid of weight, 15
The mixed liquor of~25% nitric acid and the water of surplus；Workpiece area to be welded is wiped using acetone.
Preferably, welded, do not filled silk using automatic tungsten anode argon arc welding mode, select argon gas as welding gun and the weldment back side,
The protection gas of tail portion.
Preferably, the range of welding current I is between 170~190A；The range of speed of welding is between 240~280mm/min；
The range of electric arc arc length L is between 1.0~1.2mm；Welding gun protection air-flow amount range carries on the back protection air-flow amount between 15~20L/min
Range is between 5~10L/min, and tail protection air-flow amount range is between 15~20L/min.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, inner pallet and external pressure plate are according to product quasi spline, it can be achieved that good fit；Air channel is provided on inner pallet,
Back of weld is protected in the welding process.
2, tail protective cover matches connection with torch nozzle, moves together in welding process with automatic welding gun.
3, the present invention is realized to the effective protection in titanium alloy thin wall spherical shell automatic Arc Welding, avoids welding point
Oxidation, to ensure that the welding quality of titanium alloy thin wall spherical shell product.
4, the configuration of the present invention is simple, safely and reliably complete the welding of spherical shell+bottle nozzle structure and to avoid near weld seam
It aoxidizes.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram for the titanium alloy thin wall spherical shell automatic soldering device that invention provides.
Fig. 2 is the working state schematic representation for the titanium alloy thin wall spherical shell automatic soldering device that invention provides.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
As shown in Figure 1, the embodiment of the invention provides a kind of titanium alloy thin wall spherical shell automatic soldering devices, comprising: interior bar,
Interior stem nut, upper press cover, inner pallet, chassis, outer bar, external pressure plate, outer stem nut and tail protective cover.
The outer mold surface of the inner pallet is spherical surface, it is ensured that is fitted closely with product inner mold face；The inner pallet is provided with
One circle air channel can be used for leading to the inert gas-shielded arc welding seam back side；The external pressure plate and play the role of compressing spherical shell；It is described
Upper press cover and product contact surface be arc surface, play the role of compress product；The interior stem nut is used for according to product reality
The position that border size adjusts upper press cover makes it compress product；The outer stem nut is used to adjust external pressure plate according to the size of product
Position make its compress product；The interior bar is for connecting interior stem nut, upper press cover and chassis；The outer bar is for connecting
Outer stem nut, external pressure plate and chassis.
Specifically: inner pallet is welded and fixed with chassis by three angle steel, not only can ensure that stabilized structure, but also can reach light
The purpose of loss of weight；Chassis lower end surface is fitted closely with operating platform guarantees that whole device is not shaken；12 outer bars are evenly arranged on entirely
Device excircle plays the outer stem nut of connection, external pressure plate and chassis；Upper press cover and bottle neck contact surface are arc surface, are expanded
Contact area；Inner pallet is provided with a circle air channel, 18~23mm of groove width, 4~6mm of depth, for leading to inert gas-shielded arc welding
Stitch the back side.Fig. 2 shows welding gun bottle necks 9, spherical shell 10.
Titanium alloy thin wall spherical shell automatic soldering device provided in this embodiment, welding method mainly include the following steps:
Spherical shell to be welded is placed on inner pallet, adjustment spherical shell position is located at Neto disk center, and ensures that the two is tight
Closely connected conjunction；
External pressure plate is pressed on spherical shell, tightening outer stem nut compresses spherical shell；
By bottle neck assembly on spherical shell to be welded, and weld seam is made to be located at inner pallet air channel center；
Upper press cover is pressed on bottle neck, tightening interior stem nut compresses bottle neck；
Argon gas is discharged in advance as back protection gas to inner pallet air channel by tracheae, and welding gun is axis around weld seam one using interior bar
Zhou Jinhang automatic welding；
Tail is carried out by the argon gas that tail protective cover exports in cooling commissure and protects gas；
Further, pickling degreasing should be carried out before welding to part to be welded surface, pickling solution is 4~6% hydrofluoric acid of weight, 15
The mixed liquor of~25% nitric acid and the water of surplus；Workpiece area to be welded is wiped using acetone；
Further, it is welded, is not filled silk using automatic tungsten anode argon arc welding mode, argon gas is selected to carry on the back as welding gun and weldment
The protection gas in face, tail portion；
Further, the range of welding current I is between 170~190A；The range of speed of welding is between 240~280mm/
min；The range of electric arc arc length L is between 1.0~1.2mm；Welding gun protection air-flow amount range is between 15~20L/min, back protection gas
Range of flow is between 5~10L/min, and tail protection air-flow amount range is between 15~20L/min.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of titanium alloy thin wall spherical shell automatic soldering device, which is characterized in that including interior bar (1), interior stem nut (2), upper pressure
Cover (3), inner pallet (4), chassis (5), outer bar (6), external pressure plate (7), outer stem nut (8)；
Interior bar (1) is upwardly extended by chassis (5)；
External pressure plate (7) is installed by outer stem nut (8) with chassis (5)；
Inner pallet (4) is arranged on chassis (5), and opposite with external pressure plate (7)；
The upper end of interior bar (1) is equipped with interior stem nut (2), upper press cover (3).
2. titanium alloy thin wall spherical shell automatic soldering device according to claim 1, which is characterized in that outside inner pallet (4)
Type face is spherical surface, to ensure to fit closely with spherical shell inner mold face；External pressure plate (7) plays the role of compressing spherical shell；Upper press cover (3) with
Spherical shell contact surface is arc surface, plays the role of compressing spherical shell；Interior bar (1) connects interior stem nut (2), upper press cover (3) and chassis
(5)；Outer bar (6) connects outer stem nut (8), external pressure plate (7) and chassis (5).
3. titanium alloy spherical shell automatic soldering device according to claim 1, which is characterized in that the inner pallet (4) is opened
There is a circle air channel, for leading to inert gas shielding spherical shell back of weld, avoids backside oxide in titanium alloy spherical shell welding process.
4. titanium alloy spherical shell automatic soldering device according to claim 1, which is characterized in that the inner pallet (4)
Bottom is equipped with air inlet mouth of pipe, is connected with air channel, for logical protection gas.
5. titanium alloy spherical shell automatic soldering device according to claim 1, which is characterized in that the interior stem nut (2)
Position for adjusting upper press cover (3) according to spherical shell size compresses spherical shell.
6. titanium alloy spherical shell automatic soldering device according to claim 1, which is characterized in that the outer stem nut (8)
Position for adjusting external pressure plate (7) according to the size of spherical shell compresses spherical shell.
7. titanium alloy spherical shell automatic soldering device according to claim 1, which is characterized in that it further include tail protective cover,
The tail protective cover is fixed on torch nozzle, is driven by welding gun and is realized protection.
8. a kind of welding method using titanium alloy spherical shell automatic soldering device described in any one of any one of claims 1 to 77, special
Sign is, includes the following steps:
Spherical shell to be welded is placed on inner pallet, adjustment spherical shell position makes spherical shell be located at Neto disk center, and ensures spherical shell, Neto
Both disks fit closely；
External pressure plate is pressed on spherical shell, tightening outer stem nut compresses spherical shell；
By bottle neck assembly on spherical shell to be welded, and weld seam is made to be located at inner pallet air channel center；
Upper press cover is pressed on bottle neck, tightening interior stem nut compresses bottle neck；
Discharge argon gas in advance as back protection gas to inner pallet air channel by tracheae, welding gun using interior bar as axis around weld seam one week into
Row automatic welding；
Tail is carried out by the argon gas that tail protective cover exports in cooling commissure and protects gas.
9. welding method according to claim 8, which is characterized in that carry out pickling to part to be welded spherical shell surface before welding and remove
Oil, pickling solution are the mixed liquor of the water of 4~6% hydrofluoric acid of weight, 15~25% nitric acid and surplus；Workpiece is waited for using acetone
Welding zone domain is wiped；
It is welded, is not filled silk using automatic tungsten anode argon arc welding mode, select argon gas as the protection at welding gun and the weldment back side, tail portion
Gas.
10. welding method according to claim 8, which is characterized in that the range of welding current I is between 170~190A；Weldering
The range of speed is connect between 240~280mm/min；The range of electric arc arc length L is between 1.0~1.2mm；Welding gun protection air-flow amount model
It encloses between 15~20L/min, carries on the back protection air-flow amount range between 5~10L/min, tail protection air-flow amount range is between 15~20L/
min。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168932.1A CN109277671A (en) | 2018-10-08 | 2018-10-08 | Titanium alloy thin wall spherical shell automatic soldering device |
| CN201910917310.2A CN110614415A (en) | 2018-10-08 | 2019-09-26 | Automatic welding device for titanium alloy thin-wall spherical shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168932.1A CN109277671A (en) | 2018-10-08 | 2018-10-08 | Titanium alloy thin wall spherical shell automatic soldering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109277671A true CN109277671A (en) | 2019-01-29 |
Family
ID=65176189
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811168932.1A Pending CN109277671A (en) | 2018-10-08 | 2018-10-08 | Titanium alloy thin wall spherical shell automatic soldering device |
| CN201910917310.2A Pending CN110614415A (en) | 2018-10-08 | 2019-09-26 | Automatic welding device for titanium alloy thin-wall spherical shell |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917310.2A Pending CN110614415A (en) | 2018-10-08 | 2019-09-26 | Automatic welding device for titanium alloy thin-wall spherical shell |
Country Status (1)
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| CN (2) | CN109277671A (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4835359A (en) * | 1988-02-18 | 1989-05-30 | Commercial Shearing, Inc. | Method of manufacturing hemispherical tank heads |
| CN201609823U (en) * | 2010-03-18 | 2010-10-20 | 西北有色金属研究院 | Fixture for circumferential weld automatic welding of titanium alloy ultra-thin spherical parts |
| CN203944970U (en) * | 2014-07-16 | 2014-11-19 | 中航湖南通用航空发动机有限公司 | A kind of panel beating welding casing class part clamping fixture for correcting |
| CN104162759B (en) * | 2014-08-18 | 2015-12-09 | 中航湖南通用航空发动机有限公司 | A kind of welding method of casing and fixture thereof |
| CN104475934A (en) * | 2014-11-20 | 2015-04-01 | 湖北三江航天江北机械工程有限公司 | Welding process for ensuring smooth transition and molding of ellipsoidal circular seam and auxiliary welding clamp thereof |
| US10300546B2 (en) * | 2017-01-27 | 2019-05-28 | United Technologies Corporation | Spherical articulating fixture |
| CN107877068B (en) * | 2017-12-01 | 2019-10-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of device and application method reducing large thin-wall part welding deformation |
-
2018
- 2018-10-08 CN CN201811168932.1A patent/CN109277671A/en active Pending
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2019
- 2019-09-26 CN CN201910917310.2A patent/CN110614415A/en active Pending
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| CN110614415A (en) | 2019-12-27 |
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Application publication date: 20190129 |
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