CN1994652A - Friction pressure loading mechanism of linear friction welding machine - Google Patents
Friction pressure loading mechanism of linear friction welding machine Download PDFInfo
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- CN1994652A CN1994652A CN 200610105344 CN200610105344A CN1994652A CN 1994652 A CN1994652 A CN 1994652A CN 200610105344 CN200610105344 CN 200610105344 CN 200610105344 A CN200610105344 A CN 200610105344A CN 1994652 A CN1994652 A CN 1994652A
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Abstract
The invention relates to a friction pressure loader of linear friction welding machine, which comprises vibration clamper (2), vibration cylinder (3) and connector (13), wherein one connector is fixed between cylinder (3) and clamper (2); and there are 2-4 connectors fixed between clamper (2) and the welding machine; the connector comprises connecting rod arm (20), spindle (21), bearing (22) and connecting rod base (23); the outer ring of bearing (22) is fixed on the connecting rod base (23); the spindle (21) is through the bearing (22) and connecting rod arm (20) to be fixed; the arm (20) via bearing (22) rotates around the spindle (21) of base (23); since the invention has hinge connector, it can generate pulp in the friction pressure load, to reduce the driving force.
Description
Technical field
The present invention relates to a kind of friction pressure loading mechanism of linear friction welding machine, particularly linear friction welding machine friction pressure pulsation load maintainer.
Background technology
Document " linear friction welding machine model of vibration and dynamic analysis " aero-manufacturing technology " Wang Qing, Du with more 2002 the 8th phases 33～36 pages " has been analyzed the relation between sinusoidal reciprocating driving force F of linear friction welding machine vibration end and the friction pressure P.Point out that when friction pressure P was constant, the sinusoidal reciprocating power driving force F of vibration end overcame the power of moving component inertia motion and making a concerted effort of frictional force, when the vibrating mass motion was just reverse, driving force reached maximum, equals maximum inertia force and frictional force sum.
With reference to Fig. 4, linear friction welding machine is widely used in welding profession.Known friction pressure loading mechanism of linear friction welding machine, involving vibrations anchor clamps 2, vibration oil cylinder 3 and linkage 13, linkage 13 is equipped with line slideway, be fixed between vibration tong 2 and the linear friction welding bed piece 14, vibration workpiece 1 pumps under driving at vibration tong 2, vibration oil cylinder 3, travelling workpiece 7 horizontal movement under mobile anchor clamps 8 and push action cylinder 9 drivings.Hydraulic system driving vibration oil cylinder 3 pistons pump under the effect of servo valve 4, and the vibration driving force that workpiece 1 pumps is provided.Hydraulic system drives thrust oil 9 cylinder piston horizontal reciprocating movements under the effect of three position four-way directional control valve 10.In friction process, the friction pressure P that this system is applied to horizontal direction is constant.
The required driving force of above-mentioned friction pressure loading mechanism of linear friction welding machine is bigger, is unfavorable for energy savings.
Summary of the invention
In order to overcome the big deficiency of the required driving force of prior art friction pressure loading mechanism of linear friction welding machine, the invention provides a kind of friction pressure loading mechanism of linear friction welding machine, by the hinge type linkage, make friction pressure produce pulsation at loading procedure, under the identical situation of weldment, required driving force reduces greatly.
The technical solution adopted for the present invention to solve the technical problems is: a kind of friction pressure loading mechanism of linear friction welding machine, involving vibrations anchor clamps 2, vibration oil cylinder 3 and linkage 13, be characterized in described linkage, one of them is fixed between vibration oil cylinder 3 and the vibration tong 2, between vibration tong 2 and linear friction welding bed piece 14, be fixed with 2～4 linkages.
Above-mentioned linkage comprises pitman arm 20, mandrel 21, bearing 22 and connecting rod base 23, and the outer ring of bearing 22 is fixed on the connecting rod base 23, and it is fixing with pitman arm 20 that mandrel 21 passes bearing 22, and pitman arm 20 rotates by the mandrel 21 of bearing 22 around connecting rod base 23.
Above-mentioned linkage 13 cooperates with vibrational system provides linear friction welding machine pulsation friction pressure.
The invention has the beneficial effects as follows: owing to installed the hinge type linkage additional, make to produce pulsation in the linear friction welding machine friction pressure loading procedure that under the identical situation of weldment, required driving force reduces greatly.
Below in conjunction with the drawings and specific embodiments the present invention is elaborated.
Description of drawings
Fig. 1 is a friction pressure loading mechanism of linear friction welding machine schematic diagram of the present invention.
Fig. 2 is a linkage enlarged drawing among Fig. 1.
Fig. 3 is a linkage structural representation among Fig. 1.
Fig. 4 is a background technology friction pressure loading mechanism of linear friction welding machine schematic diagram.
1-vibrates workpiece, the 2-vibration tong, and 3-vibrates oil cylinder, 4-servo valve, 5-vibrational system oil pump, 6-vibrational system overflow valve, the 7-travelling workpiece, 8-moves anchor clamps, the 9-push action cylinder, 10-three-dimensional four-way change-over valve, 11-push system overflow valve, 12-push system oil pump, 13-linkage, 14-lathe bed, 18-vibration tong body, 19-vibration end wedge type fixture block, 20-pitman arm, the 21-mandrel, 22-bearing, 23-connecting rod base.
The specific embodiment
In order to reduce vibratory drive power, the present invention proposes a kind of friction pressure pulsation load maintainer, friction pressure P cycle in the linear friction welding process is changed: when vibrating workpiece motion s to meta, inertia force minimum, friction pressure maximum at this moment; When vibration workpiece motion s to two extreme position, the inertia force maximum, this moment the friction pressure minimum.Friction pressure P has identical change frequency with inertia force, but phase place differs pi/2.Avoid the stack of maximum inertia force and maximal friction, therefore reduced to vibrate required maximum driving force.Thus, when required vibration frequency was identical with amplitude, the required power of vibrational system reduced; When the system drive system power is identical, maximum vibration amplitude and frequency that vibrational system can produce will be improved.
With reference to Fig. 1～3, the linkage 13 that is connected between vibration oil cylinder 3 and vibration tong 2 between vibration tong 2 and linear friction welding bed piece 14, is fixed with 2 linkages 13.According to the size of weldment, 2～4 linkages 13 can be installed.Linkage between vibration tong 2 and the linear friction welding bed piece 14 forms 2～3 parallel four limit type structures.
Described linkage comprises pitman arm 20, mandrel 21, bearing 22 and connecting rod base 23, and mandrel 21 passes bearing 22, and pitman arm 20 is connected with the connecting rod base 23 at two ends, and pitman arm 20 can rotate around mandrel 21.When vibration tong 2 pumped under the drive of vibration oil cylinder 3 pistons, vibration tong 2 also can produce the variation of micro-displacement in the horizontal direction.When vibration workpiece 1 moved up and down the centre position, its horizontal level was kept right most; When vibration workpiece 1 moves up and down the highest and extreme lower position, keep left most on its horizontal direction.Thereby vibration workpiece 1 is produced and vibration oil cylinder piston synchronous change in displacement in the horizontal direction, and driving vibration tong 2 and vibration workpiece 1 thus has one and vibrate the vibration of oil cylinder 3 piston same frequencys in the horizontal direction.During for fear of vibration tong 2 horizontal direction fine motions, vibration oil cylinder 3 pistons are affected, and are fixed with linkage 13 between vibration oil cylinder 3 and vibration tong 2.
Because the hesitation of horizontal thrust oil cylinder 9 hydraulic systems, and the machinery inertial effect of horizontal thrust oil cylinder 9 pistons and mobile anchor clamps 8, when vibration workpiece 2 horizontal directions moved to left, the friction pressure P between vibration workpiece 1 and the travelling workpiece 7 reduced; When vibration workpiece 1 horizontal direction moved to right, the friction pressure P between vibration workpiece 1 and the travelling workpiece 7 increased.So just make friction pressure P and inertia force have identical change frequency, but phase place differ pi/2.Promptly when vibration workpiece 1 when moving up and down the centre position, inertia force minimum, friction pressure P maximum; When vibration workpiece 1 moves up and down the highest and extreme lower position, inertia force maximum, and friction pressure P minimum.Like this, avoided the mutual superposition of maximum inertia force and maximum friction pressure.Make the required maximum driving force of vibration by the algebraical sum of maximum inertia force and maximal friction become orthogonal vector and, thereby reach the purpose that reduces vibratory drive power.
As shown in Figure 1, vibration workpiece 1 is linked to each other with vibration oil cylinder 3 pistons through linkage 13 by vibration tong 2 clampings, and the pressure in 1 liang of chamber of vibration oil cylinder is by servo valve 4 controls.The power of servo valve 4 is provided by vibrational system oil pump 5, and system pressure is by 6 controls of vibrational system overflow valve before the valve.Link to each other by one group of linkage 13 between vibration tong 2 and the linear friction welding bed piece 14.Travelling workpiece 7 is linked to each other with push action cylinder 9 pistons by mobile anchor clamps 8 clampings.The direction of motion of push action cylinder 9 pistons is by three position four-way directional control valve 10 controls, and push system pressure is by 11 controls of push system overflow valve, and push system power is provided by push system oil pump 12.
As shown in Figure 2, vibration workpiece 1 is clamped on the vibration tong body 18 by two vibration end wedge type fixture blocks 19.Link to each other by two groups of linkages 13 between vibration tong body 18 and the lathe bed 14.Two groups of linkage 13 structure size are identical, guarantee in vibration tong body 18 motion processes parallel with lathe bed 14 all the time.Vibration tong body 18 links to each other by one group of linkage 13 with vibration oil cylinder 3 pistons, avoids the influence of vibration tong body 18 horizontal direction fine motions to vibration oil cylinder 3 pistons.
As shown in Figure 3, linkage 13 comprises 21, two connecting rod bases 23 of 20, two mandrels of a pitman arm and four bearings 22.The outer ring of bearing 22 is fixed on the connecting rod base 23, and the inner ring of bearing 22 and pitman arm 20 are fixed on the mandrel 21.Pitman arm 20 rotates around connecting rod base 23 by bearing 22.
During the linear friction welding, push system oil pump 12 starts, for push system provides power.Friction pressure mean value is regulated by push system overflow valve 11.Three position four-way directional control valve 10 left side electromagnet get electric, and push action cylinder 9 pistons promote travelling workpiece 7 and mobile anchor clamps 8 move to the left, and travelling workpiece 7 is pressed on the vibration workpiece 1, and friction pressure is provided.
Vibration on Start-up system oil pump 5, servo valve 4 is regulated upstream pressure.Give the current signal of servo valve 4 one sinusoidal variations by control system, drive vibration oil cylinder 3 pistons and pump.Vibration oil cylinder 3 pistons drive vibration workpiece 1 by linkage 13 and vibration tong 2 pumps together.In vibration tong 2 pumped process, the pitman arm 20 of linkage 13 rotated around the connecting rod base that links to each other with lathe bed 14 23 separately, drives vibration tong 2 parallel movings.Vibration workpiece 1 is not only moved up and down, and pulsation about having.Vibration workpiece 1 moves up and down with respect to travelling workpiece 7, produces relative motion on vibration workpiece 1 and travelling workpiece 7 contact-making surfaces, generates frictional heat, finishes welding process.Vibration workpiece 1 can change the friction pressure on vibration workpiece 1 and travelling workpiece 7 contact-making surfaces with respect to travelling workpiece about 7 pulsation, reduces the driving force of vibrational system.
After testing, at vibrating mass quality m=20kg; Amplitude A=2mm; Angular velocity of vibration ω=314s
-1, the constant friction pressure P
f=20kN, coefficientoffriction=0.1 o'clock, the maximum vibration driving force Fmax=5.9kN that the background technology friction pressure loading mechanism of linear friction welding machine needs; The maximum vibration driving force Fmax=5.0kN that friction pressure loading mechanism of linear friction welding machine of the present invention needs has reduced 18% than background technology friction pressure loading mechanism of linear friction welding machine maximum driving force.
Claims (3)
1, a kind of friction pressure loading mechanism of linear friction welding machine, involving vibrations anchor clamps (2), vibration oil cylinder (3) and linkage (13), it is characterized in that: described linkage, one of them is fixed between vibration oil cylinder (3) and the vibration tong (2), between vibration tong (2) and linear friction welding bed piece (14), be fixed with 2～4 linkages (13).
2, friction pressure loading mechanism of linear friction welding machine according to claim 1, it is characterized in that: described linkage (13) comprises pitman arm (20), mandrel (21), bearing (22) and connecting rod base (23), the outer ring of bearing (22) is fixed on the connecting rod base (23), it is fixing with pitman arm (20) that mandrel (21) passes bearing (22), and pitman arm (20) rotates by the mandrel (21) of bearing (22) around connecting rod base (23).
3, friction pressure loading mechanism of linear friction welding machine according to claim 1 is characterized in that: described linkage (13) cooperates with vibrational system provides linear friction welding machine pulsation friction pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101053444A CN100448590C (en) | 2006-12-29 | 2006-12-29 | Friction pressure loading mechanism of linear friction welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101053444A CN100448590C (en) | 2006-12-29 | 2006-12-29 | Friction pressure loading mechanism of linear friction welding machine |
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| Publication Number | Publication Date |
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| CN1994652A true CN1994652A (en) | 2007-07-11 |
| CN100448590C CN100448590C (en) | 2009-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101053444A Expired - Fee Related CN100448590C (en) | 2006-12-29 | 2006-12-29 | Friction pressure loading mechanism of linear friction welding machine |
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| CN (1) | CN100448590C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551726A (en) * | 2013-11-05 | 2014-02-05 | 黄山学院 | Novel linear friction welding device |
| CN104259652A (en) * | 2014-08-19 | 2015-01-07 | 山西环界石油钻具制造股份有限公司 | Misplaced friction welding apparatus and method |
| CN107013534A (en) * | 2017-04-27 | 2017-08-04 | 机械科学研究院哈尔滨焊接研究所 | Aero-engine key component inertia friction welder fluid power system |
| CN107921573A (en) * | 2015-11-09 | 2018-04-17 | 株式会社Ihi | Linear friction engagement device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1532226A (en) * | 1975-10-10 | 1978-11-15 | Clarke Chapman Ltd | Friction welding machines |
| JPS5397953A (en) * | 1977-02-09 | 1978-08-26 | Asahi Chem Ind Co Ltd | Friction welder |
| GB8910452D0 (en) * | 1989-05-06 | 1989-06-21 | Allwood Searle & Timney | Friction welding |
| CN2413839Y (en) * | 2000-03-26 | 2001-01-10 | 孙镭 | Phase double-head friction welding machine |
| DE10347345B4 (en) * | 2003-10-11 | 2006-06-14 | Kln Ultraschall Gmbh | Method and arrangement for friction welding |
| JP3823256B2 (en) * | 2004-04-08 | 2006-09-20 | 伊藤 仁彦 | Vibration welding apparatus and welding method thereof |
-
2006
- 2006-12-29 CN CNB2006101053444A patent/CN100448590C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551726A (en) * | 2013-11-05 | 2014-02-05 | 黄山学院 | Novel linear friction welding device |
| CN103551726B (en) * | 2013-11-05 | 2015-06-24 | 黄山学院 | Novel linear friction welding device |
| CN104259652A (en) * | 2014-08-19 | 2015-01-07 | 山西环界石油钻具制造股份有限公司 | Misplaced friction welding apparatus and method |
| CN104259652B (en) * | 2014-08-19 | 2016-08-24 | 山西环界石油钻具制造股份有限公司 | Dislocation friction welding apparatuses and method |
| CN107921573A (en) * | 2015-11-09 | 2018-04-17 | 株式会社Ihi | Linear friction engagement device |
| US10562128B2 (en) | 2015-11-09 | 2020-02-18 | Ihi Corporation | Linear friction welding apparatus |
| CN107013534A (en) * | 2017-04-27 | 2017-08-04 | 机械科学研究院哈尔滨焊接研究所 | Aero-engine key component inertia friction welder fluid power system |
| CN107013534B (en) * | 2017-04-27 | 2019-10-01 | 机械科学研究院哈尔滨焊接研究所 | Aero-engine key component inertia friction welder fluid power system |
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| CN100448590C (en) | 2009-01-07 |
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Granted publication date: 20090107 Termination date: 20111229 |