CN104259659A - Welding method and welding device for foil type dynamic pressure thrusting gas bearings - Google Patents
Welding method and welding device for foil type dynamic pressure thrusting gas bearings Download PDFInfo
- Publication number
- CN104259659A CN104259659A CN201410410422.6A CN201410410422A CN104259659A CN 104259659 A CN104259659 A CN 104259659A CN 201410410422 A CN201410410422 A CN 201410410422A CN 104259659 A CN104259659 A CN 104259659A
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- paper tinsel
- welding
- positioning disk
- bearing
- positioning
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0823—Devices involving rotation of the workpiece
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a welding method and a welding device for foil type dynamic pressure thrusting gas bearings. The welding device comprises a laser welding machine, a controller, a water-cooling system and an operating table, wherein the operating table is provided with a positioning tool; the positioning tool comprises a base, a graduated plate, a bump foil positioning plate, a top foil positioning plate and positioning pins. The welding method comprises the following steps of (1) compiling welding procedures and adjusting welding parameters by using the controller; (2) placing a bottom plate of a bearing on the graduated plate, pressing the bottom plate of the bearing by using the bump foil positioning plate and inserting the three positioning pins in the bump foil positioning plate; (3) placing a bump foil in a bump foil positioning groove of the bum foil positioning plate and performing welding; (4) taking down the bump foil positioning plate, placing the top foil positioning plate on the bottom plate of the bearing and inserting the three positioning pins in the top foil positioning plate; (5) placing a top foil in a top foil positioning groove of the top foil positioning plate and performing welding; and (6) taking down the foil bearing after welding is finished. By the welding method and the welding device, the problems that after welding of the bearing, the bottom plate of the bearing deforms, complete penetration or uneven welding is caused, and projections are formed on the back surface of the bottom plate of the bearing are solved, and the quality of products manufactured by bearings is improved.
Description
Technical field
The invention belongs to welding technology field, relate to a kind of method for laser welding, be specifically related to a kind of welding method and welder of paillon foil formula dynamic pressure thrust gas bearing.
Background technology
Foil gas bearing is a kind of self-applying elastic bearing air hydrodynamic bearing.It is made up of bearing holder (housing, cover), elastic support structure and top foil etc.Compared with common rotor bearing, it is high that it has rotating speed, and precision is good, and reliability is high, oil-free lubrication, and frictional dissipation is little, and the series of advantages such as can work in high temperature environments.Foil gas bearing has broad application prospects in the field such as Aero-Space and defence and military, comprises opportunity of combat of new generation, high-temperature fuel gas turbine, cruise missile, ultralow temperature cooling system.Meanwhile, elastic foil bearing technology is also 21st century one of distributed energy resource system miniature gas turbine core technologies.
Foil bearing occurs as far back as nineteen twenty-eight, because foil bearing has good stability, and vibration resistance, shock-resistant, the advantages such as environmentally safe, foil thrust bearing appears at 1970's, be widely used in multiple high-speed rotating machine, and achieve good effect.Paillon foil formula dynamic pressure thrust gas bearing is welded by as the base plate of matrix, flat paper tinsel, ripple paper tinsel three part.Flat paper tinsel and ripple paper tinsel are the thick alloy material of 0.1-0.2mm, and base plate is the steel plate of 0.4mm, adopt common duct butt-welding method, can cause base plate gross distortion, flat paper tinsel and ripple paper tinsel by through welding, failure welding.Adopt inversion welding procedure, still can occur salient point at the base plate back side, weld strength is uneven, affects bearing mnanufacture quality.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of welding method of paillon foil formula dynamic pressure thrust gas bearing, avoiding welding rear base plate and occurring being out of shape and the problem of salient point, the workmanship of the uniformity of raising weld strength, uniformity and bearing products.Another object of the present invention is to provide a kind of welder realizing said method.
Technical scheme of the present invention is: the method for paillon foil formula dynamic pressure thrust gas bearing welding, and welding step is as follows:
(1) work out welding procedure, adjustment welding parameter by controller, welding parameter comprises spot size, current strength, laser pulse width, single pulse energy and frequency;
(2) on operating desk, install base and index dial, bearing base plate is placed on above index dial, compress with ripple paper tinsel positioning disk, plug three alignment pins, by fixing hole bolt, bearing base plate and ripple paper tinsel positioning disk are fixed on operating desk;
(3) move the welding position of laser head to positioning tool of laser welder, weld in ripple paper tinsel locating slot ripple paper tinsel being placed on ripple paper tinsel positioning disk, welded rotation-indexing table after a slice ripple paper tinsel, next ripple paper tinsel locating slot has been rotated to welding position and proceed welding;
(4) take off ripple paper tinsel positioning disk after having welded ripple paper tinsel, change top paper tinsel positioning disk, plug three alignment pins, by fixing hole bolt, bearing base plate and top paper tinsel positioning disk are fixed on operating desk;
(5) weld in top paper tinsel locating slot top paper tinsel being placed on top paper tinsel positioning disk, welded rotation-indexing table after the paper tinsel of a slice top, the next one is pushed up paper tinsel locating slot and rotate to welding position and proceed welding;
(6), after having welded top paper tinsel, taken off foil bearing from positioning tool.
Luminous point adjustable range 0.1mm ~ 3.0mm; Current strength 20 ~ 120mA; Laser pulse width 0.1 ~ 20ms; Single pulse energy 330 ~ 380J; Frequency 1.0 ~ 100Hz.
The welder of paillon foil formula dynamic pressure thrust gas bearing of the present invention, comprises controller, water-cooling system and operating desk, operating desk is equipped with positioning tool.Welder is provided with laser welder, and laser welder is provided with laser head.Positioning tool comprises base, index dial----------------------, ripple paper tinsel positioning disk, top paper tinsel positioning disk and alignment pin.Base and operating desk are rigidly connected, and index dial and annex are positioned on base, by----------------------centre bore is fixed on operating desk.Ripple paper tinsel positioning disk and top paper tinsel positioning disk are provided with fixing hole and locating hole, and ripple paper tinsel positioning disk and top paper tinsel positioning disk are fixed by bolts on index dial respectively by fixing hole, and alignment pin inserts locating hole location.
Ripple paper tinsel positioning disk is provided with 4 ~ 12 ripple paper tinsel locating slots, and top paper tinsel positioning disk is provided with 4 ~ 12 top paper tinsel locating slots.
Laser welding technology belongs to fusion weld, is the energy with laser beam, impacts on weldment joint, and can realize local heat characteristic among a small circle, produce very high mean temperature in the region that laser is very little, region is in addition then substantially unaffected.
The present invention adopts the method welding paillon foil formula dynamic pressure thrust gas bearing of laser weld, three reference axis adopt step motion control, welding is apart from controlled, spot size uniformity, avoid welding rear bearing base plate and occur that the problems such as salient point appear in the uneven and bearing base plate back side of distortion, through welding, welding, improve the uniformity of weld strength and the quality of bearing mnanufacture product.Adjusted the parameters such as laser pulse width, spot size, single pulse energy by controller, control weld penetration and weld strength, optimize welding procedure and welding quality.Positioning tool has circumferencial direction calibration function, meets the paillon foil formula dynamic pressure thrust gas bearing welding requirements of different paillon foil quantity.
Accompanying drawing explanation
The structural representation of Fig. 1 ripple paper tinsel positioning disk;
Fig. 2 is the structural representation of top paper tinsel positioning disk;
Fig. 3 is the structural representation of alignment pin;
Fig. 4 is the structural representation of base;
Fig. 5 is the structural representation of index dial.
Wherein:
1-----------------------ripple paper tinsel positioning disk, 2-locating hole, 3-ripple paper tinsel locating slot, 4-fixing hole, 5-top paper tinsel locating slot, 6-top paper tinsel positioning disk, 7-alignment pin, 8-base, 9-centre bore, 10-locating hole, 11-index dial, 12-index hole.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.Scope is not limited to embodiment, and those skilled in the art make any change and also belong to the scope of protection of the invention in the scope that claim limits.
The welder of paillon foil formula dynamic pressure thrust gas bearing of the present invention comprises controller, water-cooling system and operating desk, and operating desk is equipped with positioning tool, and welder is provided with laser welder, and laser welder is provided with laser head.As shown in Fig. 1 ~ 5, positioning tool comprises base 8----------------------, index dial 11, ripple paper tinsel positioning disk 1, top paper tinsel positioning disk 6 and alignment pin 7.Base 8 and operating desk are rigidly connected, and index dial 11 and annex are positioned on base, by----------------------centre bore is fixed on operating desk.Ripple paper tinsel positioning disk and top paper tinsel positioning disk are provided with fixing hole 4 and locating hole 2, and ripple paper tinsel positioning disk and top paper tinsel positioning disk are fixed by bolts on index dial respectively by fixing hole.Ripple paper tinsel positioning disk 1 is provided with 8 ripple paper tinsel locating slots 3, and top paper tinsel positioning disk is provided with 8 top paper tinsel locating slots 5.Welding alignment pin 7 inserts locating hole 2 and locates.
The process of paillon foil formula dynamic pressure thrust gas bearing welding is: 1. arrange rational welding parameter, electric current, pulsewidth, frequency etc.2. install, debug welding tooling, write welding procedure.3. remove the impurity such as the dust of surface of the work, use alcohol wipe welding position, avoid greasy dirt to affect welding quality.4. find focal length point accurately, using ruddiness as reference point, accurately determine the position that will weld.5. the protective articles such as goggles have been worn.Concrete welding step as:
(1) work out welding procedure, adjustment welding parameter by controller, welding parameter comprises spot size, current strength, laser pulse width, single pulse energy and frequency.Luminous point is adjusted to 0.3mm; Current strength 80mA; Laser pulse width 6ms; Single pulse energy 350J; Frequency 5Hz;
(2) on operating desk, install base 8 and index dial 11, bearing base plate is placed on above index dial, compress with ripple paper tinsel positioning disk 1, plug three alignment pins 7, by fixing hole 4 bolt, bearing base plate and ripple paper tinsel positioning disk are fixed on operating desk;
(3) the laser head moving laser welder moves to the welding position of positioning tool, weld in the ripple paper tinsel locating slot 3 ripple paper tinsel being placed on ripple paper tinsel positioning disk, weld rotation-indexing table after a slice ripple paper tinsel, next ripple paper tinsel locating slot has been rotated to welding position and proceed welding;
(4) take off ripple paper tinsel positioning disk 1 after having welded ripple paper tinsel, change top paper tinsel positioning disk 6, plug three alignment pins 7, by fixing hole 4 bolt, bearing base plate and top paper tinsel positioning disk are fixed on operating desk;
(5) weld in the top paper tinsel locating slot 5 top paper tinsel being placed on top paper tinsel positioning disk, welded rotation-indexing table after the paper tinsel of a slice top, the next one is pushed up paper tinsel locating slot and rotate to welding position and proceed welding;
(6), after having welded top paper tinsel, taken off foil bearing from positioning tool.
Claims (4)
1. a welding method for paillon foil formula dynamic pressure thrust gas bearing, welding step is as follows:
(1) work out welding procedure, adjustment welding parameter by controller, welding parameter comprises spot size, current strength, laser pulse width, single pulse energy and frequency;
(2) on operating desk, install base (8) and index dial (11), bearing base plate is placed on above index dial, compress with ripple paper tinsel positioning disk (1), plug three alignment pins (7), by fixing hole (4) bolt, bearing base plate and ripple paper tinsel positioning disk are fixed on operating desk;
(3) move the welding position of laser head to positioning tool of laser welder, weld in the ripple paper tinsel locating slot (3) ripple paper tinsel being placed on ripple paper tinsel positioning disk, weld rotation-indexing table after a slice ripple paper tinsel, next ripple paper tinsel locating slot has been rotated to welding position, proceed welding;
(4) take off ripple paper tinsel positioning disk (1) after having welded ripple paper tinsel, change top paper tinsel positioning disk (6), plug three alignment pins (7), by fixing hole (4) bolt, bearing base plate and top paper tinsel positioning disk are fixed on operating desk;
(5) weld in top paper tinsel locating slot (5) top paper tinsel being placed on top paper tinsel positioning disk, welded rotation-indexing table after the paper tinsel of a slice top, the next one is pushed up paper tinsel locating slot and rotate to welding position and proceed welding;
(6), after having welded top paper tinsel, taken off foil bearing from positioning tool.
2. the method for paillon foil formula dynamic pressure thrust gas bearing welding according to claim 1, is characterized in that: described welding parameter is: luminous point adjustable range 0.1mm ~ 3.0mm; Current strength 20 ~ 120mA; Laser pulse width 0.1 ~ 20ms; Single pulse energy 330 ~ 380J; Frequency 1.0 ~ 100Hz.
3. a welder for paillon foil formula dynamic pressure thrust gas bearing, comprises controller, water-cooling system and operating desk, operating desk is equipped with positioning tool, it is characterized in that: described welder is provided with laser welder, and laser welder is provided with laser head; Described positioning tool comprises base (8)----------------------, index dial (11), ripple paper tinsel positioning disk (1), top paper tinsel positioning disk (6) and alignment pin (7); Described base (8) and operating desk are rigidly connected, and index dial (11) and annex are positioned on base, by----------------------centre bore is fixed on operating desk; Described ripple paper tinsel positioning disk and top paper tinsel positioning disk are provided with fixing hole (4) and locating hole (2), and ripple paper tinsel positioning disk and top paper tinsel positioning disk are fixed by bolts on index dial respectively by fixing hole, and alignment pin (7) inserts locating hole location.
4. the welder of paillon foil formula dynamic pressure thrust gas bearing according to claim 1, is characterized in that: described ripple paper tinsel positioning disk (1) is provided with 4 ~ 12 ripple paper tinsel locating slots (3), and described top paper tinsel positioning disk (6) is provided with 4 ~ 12 tops paper tinsel locating slot (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410422.6A CN104259659B (en) | 2014-08-20 | 2014-08-20 | Welding method and welding device for foil type dynamic pressure thrusting gas bearings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410410422.6A CN104259659B (en) | 2014-08-20 | 2014-08-20 | Welding method and welding device for foil type dynamic pressure thrusting gas bearings |
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| CN104259659A true CN104259659A (en) | 2015-01-07 |
| CN104259659B CN104259659B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410410422.6A Active CN104259659B (en) | 2014-08-20 | 2014-08-20 | Welding method and welding device for foil type dynamic pressure thrusting gas bearings |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828485A (en) * | 2020-12-31 | 2021-05-25 | 南昌航空大学 | Device for micro laser spot welding of thrust foil |
| CN114593138A (en) * | 2022-05-11 | 2022-06-07 | 烟台东德实业有限公司 | Insert-based air bearing |
Citations (6)
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| US4277112A (en) * | 1979-10-01 | 1981-07-07 | Mechanical Technology Incorporated | Stepped, split, cantilevered compliant bearing support |
| US6354741B1 (en) * | 1999-01-22 | 2002-03-12 | Alliedsignal Inc. | Foil thrust bearing |
| DE102005023540B3 (en) * | 2005-05-21 | 2006-07-20 | Federal-Mogul Wiesbaden Gmbh & Co. Kg | Slide bearing bush and thrust washer or washer ring welding device, has assembling station with one pressing device that compresses and locks two retaining units that retain bush and washer, and welding station welding bush and washer |
| CN102132052A (en) * | 2008-08-25 | 2011-07-20 | 拓博有限公司 | Thrust foil bearing |
| CN103042336A (en) * | 2012-12-27 | 2013-04-17 | 西安交通大学 | Auxiliary device for manufacturing compliant foil gas thrust bearing by means of spot welding |
| CN103867571A (en) * | 2014-01-21 | 2014-06-18 | 周权 | Dynamic pressure gas radial bearing with axial variable stiffness and viscoelastic structure |
-
2014
- 2014-08-20 CN CN201410410422.6A patent/CN104259659B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| US4277112A (en) * | 1979-10-01 | 1981-07-07 | Mechanical Technology Incorporated | Stepped, split, cantilevered compliant bearing support |
| US6354741B1 (en) * | 1999-01-22 | 2002-03-12 | Alliedsignal Inc. | Foil thrust bearing |
| DE102005023540B3 (en) * | 2005-05-21 | 2006-07-20 | Federal-Mogul Wiesbaden Gmbh & Co. Kg | Slide bearing bush and thrust washer or washer ring welding device, has assembling station with one pressing device that compresses and locks two retaining units that retain bush and washer, and welding station welding bush and washer |
| CN102132052A (en) * | 2008-08-25 | 2011-07-20 | 拓博有限公司 | Thrust foil bearing |
| CN103042336A (en) * | 2012-12-27 | 2013-04-17 | 西安交通大学 | Auxiliary device for manufacturing compliant foil gas thrust bearing by means of spot welding |
| CN103867571A (en) * | 2014-01-21 | 2014-06-18 | 周权 | Dynamic pressure gas radial bearing with axial variable stiffness and viscoelastic structure |
Non-Patent Citations (1)
| Title |
|---|
| 陈伟武,冯懿治: "新型推力波箔轴承的研制和试验", 《机械设计与研究》, no. 4, 31 December 1986 (1986-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828485A (en) * | 2020-12-31 | 2021-05-25 | 南昌航空大学 | Device for micro laser spot welding of thrust foil |
| CN114593138A (en) * | 2022-05-11 | 2022-06-07 | 烟台东德实业有限公司 | Insert-based air bearing |
| CN114593138B (en) * | 2022-05-11 | 2022-09-20 | 烟台东德实业有限公司 | Insert-based air bearing |
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| Publication number | Publication date |
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| CN104259659B (en) | 2015-06-10 |
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Denomination of invention: Welding method and welding device for foil type dynamic pressure thrusting gas bearings Effective date of registration: 20190716 Granted publication date: 20150610 Pledgee: China Everbright Bank, Limited by Share Ltd, Shijiazhuang branch Pledgor: SHIJIAZHUANG KINGSTON BEARING TECHNOLOGY CO., LTD. Registration number: 2019130000013 |
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Date of cancellation: 20200724 Granted publication date: 20150610 Pledgee: China Everbright Bank Limited by Share Ltd. Shijiazhuang branch Pledgor: SHIJIAZHUANG KINGSTON BEARING TECHNOLOGY Co.,Ltd. Registration number: 2019130000013 |
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Address after: 052360 South Weiyi Road, Xinji Economic Development Zone, Shijiazhuang City, Hebei Province Patentee after: Hebei Kingston Technology Co.,Ltd. Address before: 052360 South Weiyi Road, Xinji Economic Development Zone, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG KINGSTON BEARING TECHNOLOGY Co.,Ltd. |
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