CN101612689A - Numerical control stirring friction welding system and welding method thereof - Google Patents
Numerical control stirring friction welding system and welding method thereof Download PDFInfo
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- CN101612689A CN101612689A CN200810039478A CN200810039478A CN101612689A CN 101612689 A CN101612689 A CN 101612689A CN 200810039478 A CN200810039478 A CN 200810039478A CN 200810039478 A CN200810039478 A CN 200810039478A CN 101612689 A CN101612689 A CN 101612689A
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Abstract
The invention discloses a kind of numerical control stirring friction welding system, comprising: the numerical control friction stir welding machine [1] that control software is installed; Stirring-head [5] is installed on the main shaft of numerical control friction stir welding machine [1]; Welding tooling [2] is installed on the rotation platform [3], and the same axle center of central shaft [7] of same rotation platform [3]; Welded unit [4] is installed on the welding tooling [2].The invention also discloses the welding method of this system, comprising: 1. write numerical control program; 2. system debug; 3. assembling; 4. system's centering; 5. welding parameter is set; 6. system returns zero.The invention solves the Welding Problems of space curve weld seam and planar weld seam, obtained welding precision height, beneficial effect such as easy and simple to handle.
Description
Technical field
The present invention relates to the agitating friction solder technology, specifically is that a kind of combining with digital control technology realizes the system of agitating friction welding and the method for welding thereof.
Background technology
The agitating friction solder technology is developed to the present has become a disclosed technology, be used widely in China and foreign countries, for example: Chinese patent 95192193.2 discloses a kind of friction stir welding method, this method adopts a kind of non-consumable friction head, the bottom that comprises a spill, ining succession has the removable pin of thread surface, and the plastic zone material is made the plastic zone material solidification along Connection Element in the friction head back, forms tight weld.Chinese patent 200410064484.2 discloses a kind of friction stir welding method, this method is that a kind of friction stir weld is equipped with a cover plant equipment with throw, treat that with 2 weldment is fixed on the platform, throw be installed on the main shaft with respect to an axis centre of throw and with respect to 2 directions treating weldment under platform inclination, move the part that to weld by rotation platform with respect to throw, realize welding.
According to the method for above-mentioned patent disclosure and the technical scheme that generally adopts at present, friction stir welding all is that flat sided straight line style weld seam is welded, be characterized in: the welding position is constant on the space, and promptly stirring-head and weld seam normal keep constant inclination angle, and aims at the weld seam center.Adjust the welding position before the weldering in advance, in formal welding process, only by the control system of welding machine, manual or self adaptation dual mode fine setting welding relative position is realized whole welding process control.The linear pattern welding method is succinctly convenient, the software control that need not to be correlated with.But in actual production, there are space conic section weld seam and complicated planar weld seam, weld seam is non-linear, welding position real-time change on the space, weld seam curvature is real-time change also, common control welding method can not meet the demands, putting before this, needing the real-time control of special software systems realization to welding track, the assurance whole welding process is carried out smoothly.
Do not find at present the explanation or the report of technology similar to the present invention, do not collect both at home and abroad similarly data as yet yet.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing friction stir welding method, welding needs according to space curve weld seam and planar weld seam, a kind of numerical control stirring friction welding system is proposed, i.e. setting program in welding control system, by the movement locus of this programme-control stirring-head, guarantee that the position of stirring-head is satisfied welding position, space needs in real time.
In order to overcome the deficiencies in the prior art, the object of the invention also provides a kind of welding method of numerical control stirring friction welding system on the other hand, utilizes the present invention, has solved the automatic Welding Problems of the weld seam with certain curvature.
In order to reach the foregoing invention purpose, the technical scheme that the present invention is adopted for its technical problem of solution provides a kind of numerical control stirring friction welding system, and this device comprises:
The numerical control friction stir welding machine is equipped with the software that is used to control complete machine mechanical system and control system on it; On the main shaft of numerical control friction stir welding machine stirring-head is installed; Welding tooling is installed on the rotation platform, and with the spigot shaft coaxle of rotation platform; Welded unit is installed on the welding tooling, and during welded condition, the weld seam on it contacts with stirring-head.Rotation platform is driven welding tooling and welded unit and is rotated synchronously by the software control of numerical control friction stir welding machine.Rotation platform cooperates moving of numerical control friction stir welding machine, realizes the centering of stirring-head, weld seam and central shaft.During welded condition, described numerical control friction stir welding machine drive stirring-head moves and welds, and perhaps rotating welding frock and welded unit weld.
Another aspect of the present invention, the technical scheme that adopts for solving the problems of the technologies described above provides a kind of welding method of numerical control stirring friction welding system, comprises the steps:
Based on the numerical control language environment in the numerical control friction stir welding machine, write numerical control program according to the equation of locus of weld seam, comprising: feed program, withdrawing program, and initial parameter setting;
Each hardware device is debugged in step 2, system debug, and the duty of numerical control friction stir welding machine, welding tooling, rotation platform, system return zero;
Writing according to the calculation of parameter in the equation of locus of said procedure carried out, on track, divide the N five equilibrium, be characterized by N point, each point is write cyclic program, it is condition that the numerical control program statement of each point is write with the parameter, and N some linearity fits to welding track the most at last.The initial parameter setting comprises: each is to the distance L of welding machine main shaft, and each is in the normal angle A on YZ plane, and the stirring-head angle of inclination B is finally determined space Y, the Z coordinate of each point.
Numerical control stirring friction welding system of the present invention and welding method thereof, weld by the programme-control agitating friction, can realize the welding of various space curve weld seams and planar weld seam, welding precision height not only, preparation, centering and welding process are easy before the weldering, and the welding hardware system is simple, and connect with respect to common line style friction stir welding and only to increase programming, the design difficulty of program is less, is very suitable for production application.
Description of drawings
Fig. 1 is the structural representation of stirring friction welding system of the present invention;
Fig. 2 is the numerical control program trajectory diagram;
Fig. 3 is welding centering schematic diagram.
Accompanying drawing sign: 1-numerical control friction stir welding machine, 2-welding tooling, 3-rotation platform, 4-welded unit, 5-stirring-head, 6-weld seam, 7-central shaft.
The specific embodiment
Below in conjunction with description of drawings the preferred embodiments of the present invention.
Fig. 1 is a first aspect of the present invention, a kind of structural representation of numerical control stirring friction welding system;
Shown in the embodiment of Fig. 1, this system comprises:
Numerical control friction stir welding machine 1 is equipped with the software that is used to control complete machine mechanical system and control system; Stirring-head 5 is installed on the main shaft of numerical control friction stir welding machine 1, and the spatial movement of control stirring-head 5; Welding tooling 2 is installed on the rotation platform 3, and coaxial with the central shaft 7 of rotation platform 3; Welded unit 4 is installed on the welding tooling 2, and during welding, the weld seam 6 on it contacts with stirring-head 5; Rotation platform 3 is driven welding tooling 2 and welded unit 4 and is rotated synchronously by the software control of numerical control friction stir welding machine 1.Rotation platform 3 cooperates moving of numerical control friction stir welding machine 1, realizes the centering of stirring-head 5, weld seam 6 and central shaft 7, carries out on this basis formally welding according to numerical control program.Welding manner can carry out according to actual needs, comprising: numerical control friction stir welding machine 1 drives stirring-head 5 and moves, and welds, and perhaps rotating welding frock 2 and welded unit 4 weld.
Below in conjunction with description of drawings a second aspect of the present invention, a kind of welding method of numerical control stirring friction welding system; This method comprises following step:
Fig. 2 is the numerical control program trajectory diagram; As shown in Figure 2, the feature of numerical control program is: based on the numerical control language environment in the numerical control friction stir welding machine, write numerical control program according to the equation of locus of weld seam, comprising: feed program, withdrawing program, and initial parameter setting.Writing of program is to carry out according to the calculation of parameter in the equation of locus, on track, divide the N five equilibrium, be characterized by N point, each point is write cyclic program, it is condition that the numerical control program statement of each point is write with the parameter, and N some linearity fits to welding track the most at last.The numerical value of N is provided with as required, and the N value is big more, and the track of linear fit is the space curve weld seam of approaching more reality just.Initial parameter comprises: each is to the distance L of welding machine main shaft, the normal angle A on the YZ plane of each point, and the stirring-head angle of inclination B is finally determined space Y, the Z coordinate of each point.
Each hardware device is debugged in step 2, system debug, and the duty of numerical control friction stir welding machine 1, welding tooling 2, rotation platform 3, system return zero;
As mentioned above, the present invention welds by the programme-control agitating friction, can realize the welding of various space curve weld seams and planar weld seam, welding precision height not only, preparation before the weldering, centering and welding process are easy, the welding hardware system is simple, and connects with respect to common line style friction stir welding and only to increase programming, and the design difficulty of program is less.
Claims (7)
1, a kind of numerical control stirring friction welding system is characterized in that, this device comprises:
Numerical control friction stir welding machine [1] is equipped with the software that is used to control complete machine mechanical system and control system on it; Stirring-head [5] is installed on the main shaft of numerical control friction stir welding machine [1]; Welding tooling [2] is installed on the rotation platform [3], and the central shaft [7] of same rotation platform [3] is at same axis; Welded unit [4] is installed on the welding tooling [2], and during welded condition, the weld seam on it [6] interacts with stirring-head [5].
2, numerical control stirring friction welding system according to claim 1 is characterized in that: described rotation platform [3] is driven welding tooling [2] and welded unit [4] and is rotated synchronously by the control system control of numerical control friction stir welding machine [1].
3, numerical control stirring friction welding system according to claim 1 and 2 is characterized in that: described rotation platform [3] cooperates moving of numerical control friction stir welding machine [1], realizes the centering of stirring-head [5], weld seam [6] and central shaft [7].
4, numerical control stirring friction welding system according to claim 1 is characterized in that: during welded condition, described numerical control friction stir welding machine [1] drive stirring-head [5] moves and welds, and perhaps rotating welding frock [2] and welded unit [4] weld.
5, a kind of welding method of numerical control stirring friction welding system according to claim 1 is characterized in that, this method comprises the steps:
Step 1, write numerical control program
Based on the numerical control language environment in the numerical control friction stir welding machine, write numerical control program according to the equation of locus of weld seam, comprising: feed program, withdrawing program, and initial parameter setting;
Each hardware device is debugged in step 2, system debug, and the duty of numerical control friction stir welding machine [1], welding tooling [2], rotation platform [3], system return zero;
Step 3, assembling are installed welded unit [4] on welding tooling [2], stirring-head [5] are installed on numerical control friction stir welding machine [1];
Step 4, system's centering, mobile numerical control friction stir welding machine [1] cooperates rotation rotation platform [3] and welding tooling [2], welded unit [4], adjusts the centering of stirring-head [5] and weld seam [6], central shaft [7];
Step 5, welding parameter is set, operation numerical control program, formal welding;
Step 6, welding finish, and system returns zero.
6, the welding method of friction welding system according to claim 5, it is characterized in that, in the described step 1, writing according to the calculation of parameter in the equation of locus of program carried out, on track, divide the N five equilibrium, be characterized by N point, each point is write cyclic program, it is condition that the numerical control program statement of each point is write with the parameter, and N some linearity fits to welding track the most at last.
7, according to the welding method of claim 5 or 6 described friction welding systems, it is characterized in that, in the described step 1, the initial parameter setting comprises: each is to the distance L of welding machine main shaft, each is in the normal angle A on YZ plane, stirring-head angle of inclination B, finally space Y, the Z coordinate of definite each point.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804498A (en) * | 2010-03-17 | 2010-08-18 | 昆山工研院工业机器人研究所有限公司 | Method for searching welding seams by robot in contact mode |
| CN102554453A (en) * | 2010-12-17 | 2012-07-11 | 上海航天设备制造总厂 | Transmission device for friction stir spot welding main head with double moving rings |
| CN103464888A (en) * | 2012-06-05 | 2013-12-25 | 上海航天设备制造总厂 | Micro stirring welding system integrating laser and mechanical sensors and welding method |
| CN103842123A (en) * | 2011-09-30 | 2014-06-04 | 通用电气公司 | Method of and apparatus for repairing an aircraft component by using a patch friction stir welded to the component |
| CN105772812A (en) * | 2016-04-21 | 2016-07-20 | 上海航天设备制造总厂 | Method for five-axis mirror milling numerical control machining of integrally-formed tank bottom |
| CN110834179A (en) * | 2019-11-13 | 2020-02-25 | 西安交通大学 | Axial continuous path friction stir material increase manufacturing process for large thin-wall high-cylinder ring piece |
| CN114054934A (en) * | 2021-11-29 | 2022-02-18 | 天津航天长征火箭制造有限公司 | Floating type double-shaft-shoulder friction stir welding method for longitudinal seam of spherical crown box bottom |
| CN114643407A (en) * | 2022-05-19 | 2022-06-21 | 青云工业(辽宁)有限公司 | Pressure control method for welding seam of space cylinder structure by stirring friction welding of movable machine head |
-
2008
- 2008-06-25 CN CN200810039478A patent/CN101612689A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804498A (en) * | 2010-03-17 | 2010-08-18 | 昆山工研院工业机器人研究所有限公司 | Method for searching welding seams by robot in contact mode |
| CN101804498B (en) * | 2010-03-17 | 2011-08-31 | 昆山工研院工业机器人研究所有限公司 | Method for searching welding seams by robot in contact mode |
| CN102554453A (en) * | 2010-12-17 | 2012-07-11 | 上海航天设备制造总厂 | Transmission device for friction stir spot welding main head with double moving rings |
| CN102554453B (en) * | 2010-12-17 | 2016-03-09 | 上海航天设备制造总厂 | Transmission device for friction stir spot welding main head with double moving rings |
| CN103842123A (en) * | 2011-09-30 | 2014-06-04 | 通用电气公司 | Method of and apparatus for repairing an aircraft component by using a patch friction stir welded to the component |
| CN103464888A (en) * | 2012-06-05 | 2013-12-25 | 上海航天设备制造总厂 | Micro stirring welding system integrating laser and mechanical sensors and welding method |
| CN105772812A (en) * | 2016-04-21 | 2016-07-20 | 上海航天设备制造总厂 | Method for five-axis mirror milling numerical control machining of integrally-formed tank bottom |
| CN110834179A (en) * | 2019-11-13 | 2020-02-25 | 西安交通大学 | Axial continuous path friction stir material increase manufacturing process for large thin-wall high-cylinder ring piece |
| CN114054934A (en) * | 2021-11-29 | 2022-02-18 | 天津航天长征火箭制造有限公司 | Floating type double-shaft-shoulder friction stir welding method for longitudinal seam of spherical crown box bottom |
| CN114643407A (en) * | 2022-05-19 | 2022-06-21 | 青云工业(辽宁)有限公司 | Pressure control method for welding seam of space cylinder structure by stirring friction welding of movable machine head |
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Application publication date: 20091230 |