CN115870680A - Welding deformation control device and method thereof - Google Patents
Welding deformation control device and method thereof Download PDFInfo
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- CN115870680A CN115870680A CN202111143643.8A CN202111143643A CN115870680A CN 115870680 A CN115870680 A CN 115870680A CN 202111143643 A CN202111143643 A CN 202111143643A CN 115870680 A CN115870680 A CN 115870680A
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Abstract
The present invention relates to a welding deformation control device for controlling welding deformation of at least one fin by laser welding on a cylindrical housing, the welding deformation control device comprising: the fixture comprises a roller frame, a dividing head rotating table and a fixture positioning assembly arranged between the roller frame and the dividing head rotating table; the clamp positioning assembly further comprises: annular positioning mechanism: the annular positioning mechanism is provided with an annular clamping groove; a clamping hoop: the clamp hoop is provided with an annular clamping groove corresponding to the annular positioning mechanism; at least one positioning and clamping beam: the positioning clamping device is arranged between the annular positioning mechanism and the clamp ring, a hollow accommodating space for accommodating the cylindrical shell is formed by the annular positioning mechanism and the clamp ring in an enclosing manner, two ends of each positioning clamping beam are respectively positioned in annular clamping grooves of the annular positioning mechanism and the clamp ring, each positioning clamping beam is provided with a positioning clamping groove, and the fins are arranged in the positioning clamping grooves; an inner supporting ring: the inner support ring is arranged in the containing space, one end part of the inner support ring is fixedly connected with the annular positioning mechanism, and the outer diameter of the inner support ring is matched with the inner diameter of the cylindrical shell.
Description
Technical Field
The present invention relates to a welding device, and more particularly, to a welding deformation control device and method.
Background
At present, in the prior art, a cylindrical shell assembly is formed by welding a plurality of thin fins and a shell, machining is not carried out after welding, the requirement on the quality of a II-grade welding line is met, and the requirements on the strength of the welding line and the form and position dimensional tolerance of a product with the straightness not more than 0.3 are higher.
Meanwhile, the thin fin and the shell are thin in workpiece size, deformation is easy to occur during welding, and as the metal material can generate stress during welding, one part can be released through deformation, and the other part is remained in the structural member, the residual stress of welding often influences the performance of the cylindrical shell assembly. Therefore, the welded structure is often annealed after welding to eliminate residual stress.
In order to prevent welding deformation, the requirements of dimensional precision and quality grade of welding seams of products after welding are guaranteed.
The clamping control device for welding in the prior art has the following difficulties:
1) The clamping times of the fin clamping device and the times of eliminating residual stress by post-welding annealing cannot be reduced;
2) The transmission of torque at one end cannot be realized, the transmission of torque is assisted at the other end, so that the product can rotate to a certain angle without a self-locking function, and the product rotates due to the force of the laser beam, so that the laser beam accidentally damages other parts of the shell to cause scrapping;
3) The tool blocks the laser beam, so that the laser head, the protective gas nozzle and the clamping device cannot be guaranteed not to interfere with each other, and the protective gas nozzle is tightly attached to the wing piece and positioned at multiple points;
4) Reliable connection between the tool and the shell cannot be realized, and the part of the fin extending out of the shell is avoided, so that the operation is very complicated and the difficulty is high;
5) The clamping device cannot ensure that the positioning welding seams are uniformly distributed along the axial direction, and meanwhile, the fins are welded at any angle.
Therefore, in order to solve the problems that the conventional cylindrical workpiece is easy to deform and has high welding difficulty, the invention particularly provides a welding control workpiece which is stable and reliable in welding process, can effectively and reliably control the forming quality of a welding seam and improves the production efficiency. The invention relates to the field of welding deformation control, in particular to a device for controlling deformation before welding and performing heat treatment after welding aiming at the oblique angle and straightness of a wing of a shell with a wing, and the device meets the requirement of a flight test.
Disclosure of Invention
The invention provides a friction force detection device aiming at the technical problem that the released device cannot be pulled up vertically at a constant speed through manual operation.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a welding deformation control device, which is applied to the welding deformation control of at least one fin of laser welding on a cylindrical shell, and comprises: the fixture comprises a roller frame, a dividing head rotating table and a fixture positioning assembly arranged between the roller frame and the dividing head rotating table; the clamp positioning assembly further comprises:
annular positioning mechanism: the annular positioning mechanism is provided with an annular clamping groove;
a clamping hoop: the clamp hoop is provided with an annular clamping groove corresponding to the annular positioning mechanism;
at least one positioning and clamping beam: the positioning clamping device is arranged between the annular positioning mechanism and the clamp ring, a hollow accommodating space for accommodating the cylindrical shell is formed by the annular positioning mechanism and the clamp ring in an enclosing manner, two ends of each positioning clamping beam are respectively positioned in annular clamping grooves of the annular positioning mechanism and the clamp ring, each positioning clamping beam is provided with a positioning clamping groove, and the fins are arranged in the positioning clamping grooves;
an inner supporting ring: the inner support ring is arranged in the containing space, one end part of the inner support ring is fixedly connected with the annular positioning mechanism, and the outer diameter of the inner support ring is matched with the inner diameter of the cylindrical shell.
Preferably, the tight roof beam of above-mentioned location clamp is rectangular shape, and the corresponding surface that the tight roof beam of location clamp and casing external diameter contacted sets up to the arc, and the tight roof beam of location clamp includes:
strip-shaped grooves: for clamping arrangement with the welding wing.
Preferably, the positioning and clamping beam further comprises:
two positioning steps: the positioning steps are respectively arranged at two ends of the positioning clamping beam, the positioning steps are clamped on the annular positioning mechanism, and the positioning clamping beam and the annular positioning mechanism are fastened and positioned along the axis direction of the annular positioning mechanism and perpendicular to the axis direction of the annular positioning mechanism through the quick fastening screws.
Preferably, the inner support ring is provided with an annular spigot for positioning the housing when fitted with the inner diameter of the housing.
Preferably, the clamp ring is provided with an annular clamping groove for fixedly connecting the other end of the positioning and clamping beam.
Preferably, the clamp ring is divided into two halves, the two halves of the clamp ring are fixedly connected through bolts, and the clamp ring is clamped on the outer diameter of the shell.
Preferably, the index head rotating table is provided with a three-jaw chuck clamping device, and the three-jaw chuck clamping device is fixedly connected with one side of the annular positioning mechanism to realize the torque transmission to one end of the annular positioning mechanism.
Preferably, the two ends and the upper surface of the positioning and clamping beam are provided with a plurality of threaded holes, and the threaded holes are connected with the annular positioning mechanism through fastening screws.
Preferably, the roller frame includes:
a base support: one end of the shell is fixedly supported, and the top of the underframe support is arranged into an arc shape matched with the outer diameter of the shell;
two rollers: the roller wheel outer diameter is connected with the outer diameter of the shell and is used for rotating the shell on the roller wheel frame along the axial direction of the shell.
The invention also provides a welding deformation control method, which is applied to the welding of the cylindrical shell and at least one welding fin and adopts the welding deformation control method, and the welding deformation control method comprises the following steps:
(1) The automatic welding device comprises a shell, a wing piece, a rotary table of a dividing head, an annular positioning mechanism, an inner supporting ring, a positioning clamping beam and a clamp ring which are assembled and connected, wherein a groove Liang Nashe is clamped with the wing piece to prevent the wing piece from being welded and deformed;
(2) Positioning a laser incident angle for welding, wherein the included angle between the laser incident angle and the outer surface of the shell is a preset angle theta DEG;
(3) After welding, the shell and the fin strip welding deformation control device are welded together and then annealed to eliminate residual stress.
The invention has the beneficial effects that:
1) The invention reduces the clamping times of the wing clamping device and the times of eliminating residual stress by post-welding annealing;
2) The invention realizes the transmission of torque at one end and the transmission of auxiliary torque at the other end, so that a product can rotate to a certain angle, has a self-locking function, and cannot be scrapped because the laser beam accidentally damages other parts of the shell due to the rotation of the product caused by the force of the laser beam;
3) The invention meets the incidence angle of the laser beams at the two sides of each wing, and finally determines the welding parameters with good welding seam forming quality through a large number of early tests;
4) The tool does not block laser beams, ensures that the laser heads, the protective gas nozzles and the clamping device do not interfere with each other, is tightly attached to the fins, and is positioned in multiple points.
5) The invention realizes the reliable connection of the tool and the shell, avoids the part of the wing panel extending out of the shell, and has simple and convenient operation.
6) The clamping device can ensure that the positioning welding lines are uniformly distributed along the axial direction, and simultaneously, the positioning welding of any angle of the wing piece is met.
Drawings
FIG. 1 is a schematic view of a simulated assembly of a clamping device and a housing assembly in accordance with the present invention;
FIG. 2 is a schematic view of a welding deformation control apparatus according to the present invention;
FIG. 3 is a schematic view of the clamp beam of the present invention;
FIG. 4 is a schematic view of a rotary table of a dividing head according to the present invention;
FIG. 5 is a schematic half-section view of the annular positioning mechanism of the present invention;
FIG. 6 is a schematic view of a roller frame according to the present invention;
FIG. 7 is a schematic view of laser welding according to the present invention.
In the above figures:
100 cylindrical shell, 200 fins
10 roller carrier, 11 base bracket and 12 rollers
20 index head rotating table, 30 annular positioning mechanism, 40 clamp ring, 50 positioning clamping beam and 60 inner supporting ring;
41 annular clamping grooves, 51 positioning clamping grooves, 52 positioning steps, 53 quick fastening screws, 61 annular spigots and 62 threaded holes
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail and fully below with reference to the accompanying drawings. It is obvious that the described embodiments are only some specific embodiments, not all embodiments, of the general technical solution of the present invention. All other embodiments, which can be derived by a person skilled in the art from the general idea of the invention, fall within the scope of protection of the invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to solve the problems that the conventional cylindrical workpiece is easy to deform and has high welding difficulty, the invention particularly provides a welding control workpiece which is stable and reliable in welding process, can effectively and reliably control the forming quality of a welding seam and improves the production efficiency.
Please refer to fig. 1 to 6. FIG. 1 is a schematic view of a simulated assembly of a clamping device and a housing assembly in accordance with the present invention; FIG. 2 is a schematic view of a welding deformation control apparatus according to the present invention; FIG. 3 is a schematic view of the positioning and clamping beam of the present invention; FIG. 4 is a schematic view of a rotary table of a dividing head according to the present invention; FIG. 5 is a schematic half-sectional view of the annular positioning mechanism of the present invention; FIG. 6 is a schematic view of a roller frame according to the present invention; as shown in fig. 1 to 6, the present invention according to an embodiment of the present invention provides a welding deformation control apparatus for controlling welding deformation of at least one fin 200 by laser welding on a cylindrical case 100, the welding deformation control apparatus including: the fixture comprises a roller frame 10, a dividing head rotating platform 20 and a fixture positioning assembly arranged between the roller frame 10 and the dividing head rotating platform 20; the clamp positioning assembly further comprises: the annular positioning mechanism 30, the clamp ring 40, at least one positioning clamping beam 50 and the inner support ring 60;
annular positioning mechanism 30: the annular positioning mechanism 30 is provided with an annular clamping groove 31;
the clamp ring 40: the clamp ring 40 is provided with an annular clamping groove 41 corresponding to the annular positioning mechanism 30; the clamp ring is provided with an annular clamping groove 41 for fixedly connecting the other end of the positioning and clamping beam 50.
At least one positioning and clamping beam 50: the positioning and clamping device is arranged between the annular positioning mechanism 30 and the clamp ring 40, a hollow accommodating space for accommodating a cylindrical shell is formed by surrounding the annular positioning mechanism 30 and the clamp ring 40, two ends of each positioning and clamping beam 50 are respectively positioned in annular clamping grooves of the annular positioning mechanism 30 and the clamp ring 40, a positioning and clamping groove 51 is formed in each positioning and clamping beam 50, and fins are arranged in the positioning and clamping grooves 51;
inner support ring 60: is disposed in the accommodating space, and one end portion is fixedly connected to the annular positioning mechanism 30, and the outer diameter of the inner supporting ring 60 matches with the inner diameter of the cylindrical housing 100. Wherein the inner support ring 60 is provided with an annular spigot 61 for locating the housing when fitted to the inner diameter of the housing 100. The inner bracing ring 60 is uniformly provided with a plurality of threaded holes 62 which are connected with the shell 100 and avoid the welding fins 200. Meanwhile, four annular positioning mechanism connecting threads 63 are arranged on the top tangent plane direction of the inner supporting ring 60 corresponding to the annular mechanism connecting hole 32;
wherein, the roller frame 10 includes:
base support 11: one end of the supporting shell 100 is fixed, and the top of the underframe bracket is arranged into an arc shape matched with the outer diameter of the shell;
two rollers 12: and the outer diameters of the rollers 12 are connected with the outer diameter of the shell 100, and the shell 100 is used for rotating on the roller frame 10 along the axial direction of the shell.
The clamp ring 40 is provided in two halves, and the two halves of the clamp ring 40 are fixedly connected by bolts and clamped on the outer diameter of the housing 100.
The index head rotating table 20 is provided with a three-jaw chuck clamping device, and the three-jaw chuck clamping device is fixedly connected to one side of the annular positioning mechanism 30 to realize the transmission of torque to one end of the annular positioning mechanism 30. The annular positioning mechanism 30 is provided with four inner support ring connecting holes 32 uniformly arranged around the circumferential direction, and is used for being fixedly connected with the inner support ring 60 through bolts. A plurality of screw connecting grooves 33 are arranged on the outer circumference of the annular positioning mechanism 30, and the screw connecting grooves 33 are used for quick fastening screws 53 for fixing the positioning and clamping beam 50 to pass through so as to fix the positioning and clamping beam 50 and the annular positioning mechanism 30.
Wherein, the positioning and clamping beam 50 is in a strip shape, the surface of the positioning and clamping beam 50 contacting with the outer diameter of the casing 100 is correspondingly set to be in an arc shape, and the positioning and clamping beam 50 comprises: the strip-shaped through groove 51, in the embodiment of the present invention, the strip-shaped through groove 51 is a through groove, and can be used for allowing the welding wing pieces to pass through the through groove 51 and be clamped.
Further, the positioning and clamping beam 50 further includes:
two positioning steps 52: the positioning steps 52 are respectively arranged at two ends of the positioning and clamping beam 50, the positioning steps 52 are clamped on the annular clamping groove 31 of the annular positioning mechanism 30, and the fastening and positioning of the positioning and clamping beam 50 and the annular positioning mechanism 30 along the axial direction of the annular positioning mechanism 30 and perpendicular to the axial direction of the annular positioning mechanism 30 are realized through the quick fastening screws 53.
The two ends and the upper surface of the positioning and clamping beam 50 are provided with a plurality of threaded holes 53, and the positioning and clamping beam is connected with the annular positioning mechanism 30 through fastening screws.
The invention also provides a welding deformation control method of the cylinder device, which is applied to the welding of the cylindrical shell and at least one welding fin, and the welding deformation control method of the cylinder device is adopted, and comprises the following steps:
(1) The assembly connection shell 100, the wing pieces 200, the index head rotary table 20, the annular positioning mechanism 30, the inner support ring 60, the positioning and clamping beam 50 and the clamp ring 30 are assembled, a groove is formed in the positioning and clamping beam 50 to be clamped with the wing pieces 200, welding deformation of the wing pieces 200 is prevented, positioning welding seams of the welding deformation control device are uniformly distributed along the axial direction and meet positioning welding of any angle of the wing pieces, and the shell and the wing pieces are self-locked through the index head rotary table;
(2) Positioning a laser incident angle to perform welding, wherein the included angle between the laser incident angle and the outer surface of the shell 100 is a preset angle theta degrees;
(3) After welding, the case 100 and the fin 200 are welded together with the welding deformation control device, and then annealed to remove residual stress.
The specific operation process comprises the following steps:
1) The invention reduces the clamping times of the wing clamping device and the times of annealing and residual stress elimination after welding;
2) The invention realizes the transmission of torque at one end and assists the transmission of torque at the other end, so that a product can rotate to a certain angle, has a self-locking function, and avoids the phenomenon that the product rotates due to the force of a laser beam, so that the laser beam accidentally damages other parts of the shell to cause scrapping; the incidence angles of the laser beams on the two sides of each wing are met, and a large number of tests are performed in the early stage to finally determine welding parameters with good weld joint forming quality, fig. 7 is a schematic diagram of laser welding of the invention, and laser welding is shown in fig. 7, wherein the included angle between the laser incidence angle and the outer surface of the shell 100 is a preset angle of 15 degrees.
3) The tool cannot block a laser beam, and the laser head, the protective gas nozzle and the clamping device are required to be ensured not to interfere, to be tightly attached to the wing piece and to be positioned in multiple points.
4) The reliable connection of the tool and the shell is realized, the part of the fin extending out of the shell is avoided, and the operation is simple and convenient.
5) The clamping device can ensure that the positioning welding line is uniformly distributed along the axial direction, and simultaneously, the positioning welding of any angle of the wing piece is met.
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings:
1) One side of the positioning and clamping beam 50 is arc-shaped, is matched with the annular groove 31 of the annular positioning mechanism, and can rotate freely in the annular groove 31 to realize one-time positioning and clamping; meanwhile, bosses 52 are arranged at two ends of the positioning and clamping beam 50, and the positioning and clamping beam 50 is fastened and positioned with the annular positioning mechanism 30 through a quick fastening screw 53; the annular groove 31 arranged on the annular positioning mechanism 30 can meet the requirement of any angle of the welding wing piece 200, meanwhile, the annular groove 31 is arranged on the circumferential surface, and the fastening screw 53 is connected with the positioning clamping beam 50 through the annular groove 31 to realize Y-axis direction positioning; the inner supporting ring 60 is provided with a spigot 61 which is matched with the inner diameter of a product and has the function of positioning the product, and the inner supporting ring 60 is fixedly connected with the annular positioning mechanism 30 through bolts; the design mechanism of the clamp ring 40 is substantially the same as that of the annular positioning mechanism 30, and the difference is that the clamp ring is divided into two parts, so that the clamp ring is convenient to mount and dismount. After welding, the belt tool is welded together, and then annealing is carried out to eliminate residual stress, so that welding deformation is reduced, and the design requirement is met.
2) The transmission of torque at one end is realized by utilizing a vertical and horizontal dual-purpose indexing disc with a flange precision milling machine indexing head rotating table rotary table 20 and a three-jaw chuck clamping and clamping device, and meanwhile, the device has a self-locking function and avoids the product from rotating in the process of welding over-weighing; and the roller carrier device is designed to realize the transmission of the auxiliary torque at the other end.
3) In order to prevent the interference of the laser head, the gas nozzle and the pressing device, the shape of the device is designed to be a groove, and the wing piece is clamped by the whole length.
4) The through holes are uniformly distributed on the surface of the shell 100, and the shell is connected with a clamping device through bolts, and meanwhile, the extending parts of the fins 200 are avoided, and the locating function is realized on the extending parts.
3. Simulation assembly
Verifying the simulation assembly of the clamping device and the shell assembly, wherein FIG. 1 is a schematic diagram of the simulation assembly of the clamping device and the shell assembly; as shown in fig. 1, the simulation assembly includes a housing 100 (1 piece), a tab 200 (4 pieces), an index head rotary table 20 (1 piece), a ring-shaped positioning mechanism 30 (1 piece), an inner support ring 60 (1 piece), a positioning clamping beam 50 (4 pieces), a clamp ring 40 (2 pieces), a quick fastening screw 53 (16 pieces), and an M10X35 bolt (9) piece.
Description of design mechanism: the annular positioning mechanism 30 and the inner support ring 60 are connected by 4M 10X35 bolts and are designed into an annular shape, so that three-jaw clamping is facilitated, torque transmission is realized, and the laser incident angle is quickly and accurately positioned; the inner supporting ring 60 is provided with a product positioning spigot and 3M 10 uniformly distributed threaded holes which are connected with the product shell 100, avoids the extending part of the wing panel and simultaneously plays a role in connecting with the product; the positioning and clamping beam 50 is internally provided with a groove which is tightly clamped with the fin 200 to prevent the welding deformation of the fin 200, and simultaneously, the positioning and clamping beam is arranged in a heat treatment furnace to be annealed to eliminate residual stress and also can prevent the deformation of the fin in the process, and both ends and the upper surface of the beam are provided with threaded holes which are connected with an annular positioning mechanism through quick fastening screws; the clamp ring 40 can realize a quick clamping function through bolt connection, and is convenient to detach.
Through the simulation assembly, the tack welding can be according to clamping device chucking fin, can guarantee again that laser can be fast, accurate shoot assigned position under the different operating modes.
In conclusion, the invention reduces the clamping times of the wing clamping device and the times of eliminating residual stress by post-welding annealing; the invention realizes the transmission of torque at one end and assists the transmission of torque at the other end, so that a product can rotate to a certain angle, has a self-locking function, and avoids the phenomenon that the product rotates due to the force of a laser beam, so that the laser beam accidentally damages other parts of the shell to cause scrapping; the invention meets the incidence angle of the laser beams at the two sides of each wing, and finally determines the welding parameters with good welding seam forming quality through a large number of early tests; the tool does not block laser beams, ensures that the laser heads, the protective gas nozzles and the clamping device do not interfere with each other, is tightly attached to the wing pieces, and is positioned in multiple points. The invention realizes the reliable connection of the tool and the shell, avoids the part of the wing panel extending out of the shell, and has simple and convenient operation. The clamping device can ensure that the positioning welding lines are uniformly distributed along the axial direction, and simultaneously, the positioning welding of any angle of the wing piece is met.
The above description is for the purpose of describing particular embodiments of the present invention, and is not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and all changes and modifications that can be made therein without departing from the spirit and scope of the present invention. It is noted that in the drawings and in the description, implementations not shown or described are all in a form known to those of ordinary skill in the art and are not described in detail. Furthermore, the above definitions of the various components and processes are not intended to be limited to the specific structures, shapes, or configurations shown in the examples.
Claims (10)
1. A welding deformation control device for controlling welding deformation of a cylindrical shell to which at least one fin is laser welded, the welding deformation control device comprising: the fixture comprises a roller frame, a dividing head rotating table and a fixture positioning assembly arranged between the roller frame and the dividing head rotating table; the clamp positioning assembly further comprises:
annular positioning mechanism: the annular positioning mechanism is connected with the dividing head rotating table and is provided with an annular clamping groove;
a clamping hoop: the clamp hoop ring is provided with an annular clamping groove corresponding to the annular positioning mechanism;
at least one positioning and clamping beam: the positioning clamping device comprises a cylindrical shell, an annular positioning mechanism, a clamp ring and a wing piece, wherein the annular positioning mechanism is arranged between the cylindrical shell and the clamp ring, a hollow accommodating space for accommodating the cylindrical shell is formed by enclosing the annular positioning mechanism and the clamp ring, two ends of each positioning clamping beam are respectively positioned in the annular clamping grooves of the annular positioning mechanism and the clamp ring, a positioning clamping groove is formed in each positioning clamping beam, and the wing piece is arranged in the positioning clamping groove;
an inner supporting ring: the inner support ring is arranged in the accommodating space, one end part of the inner support ring is fixedly connected with the annular positioning mechanism, and the outer diameter of the inner support ring is matched with the inner diameter of the cylindrical shell.
2. The welding deformation control device according to claim 1, wherein the pilot clamp beam is elongated, a surface of the pilot clamp beam, which is in contact with an outer diameter of the housing, is provided in an arc shape, and the pilot clamp beam includes:
strip-shaped groove: for clamping arrangement with the welding wing.
3. The welding deformation control device of claim 2, wherein the locating clamp beam further comprises:
two positioning steps: the positioning steps are respectively arranged at two ends of the positioning and clamping beam, the positioning steps are clamped on the annular positioning mechanism, and the positioning and clamping beam and the edge of the annular positioning mechanism are fastened and positioned in the axis direction of the annular positioning mechanism and perpendicular to the axis direction of the annular positioning mechanism through quick fastening screws.
4. The welding deformation control device of claim 1, wherein said inner collar is provided with an annular spigot for positioning said shell when engaged with said shell inner diameter.
5. Welding deformation control device according to claim 1, characterized in that the clamping collar is provided with an annular clamping groove for fixedly connecting the other end of the positioning clamping beam.
6. The welding deformation control device according to claim 1, wherein the clamp ring is provided in two halves, and the two halves of the clamp ring are fixedly connected by bolts and clamped to the outer diameter of the housing.
7. The welding deformation control device according to claim 1, wherein the index head rotary table is provided with a three-jaw chuck clamping device, and the three-jaw chuck clamping device is fixedly connected with one side of the annular positioning mechanism to realize the transmission of torque to one end of the annular positioning mechanism.
8. The welding deformation control device according to claim 3, wherein the two ends and the upper surface of the positioning and clamping beam are provided with a plurality of threaded holes, and the threaded holes are connected with the annular positioning mechanism through fastening screws.
9. The welding deformation control device according to claim 1, wherein the roller frame comprises:
a base support: one end of the shell is fixedly supported, and the top of the underframe bracket is arranged into an arc shape matched with the outer diameter of the shell;
two rollers: the roller wheel is arranged on two sides of the top of the base support, and the outer diameter of the roller wheel is connected with the outer diameter of the shell, so that the shell is arranged on the roller wheel frame and rotates along the axial direction of the shell.
10. A welding deformation control method applied to welding of a cylindrical shell and at least one welding fin, using the welding deformation control method of any one of claims 1 to 9, characterized by comprising the steps of:
(1) The shell, the fins, the dividing head rotary table, the annular positioning mechanism, the inner supporting ring, the positioning and clamping beam and the clamp ring are assembled and connected, the positioning and clamping Liang Nashe grooves are clamped with the fins to prevent welding deformation of the fins, the positioning welding seams of the welding deformation control device are uniformly distributed along the axial direction and meet the positioning welding of the fins at any angle, and the shell and the fins are self-locked through the dividing head rotary table;
(2) Positioning a laser incident angle to perform welding, wherein an included angle between the laser incident angle and the outer surface of the shell is a preset angle theta degrees;
(3) After welding, the shell and the fin are welded together with the welding deformation control device, and then annealing is carried out to eliminate residual stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111143643.8A CN115870680A (en) | 2021-09-28 | 2021-09-28 | Welding deformation control device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111143643.8A CN115870680A (en) | 2021-09-28 | 2021-09-28 | Welding deformation control device and method thereof |
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| CN115870680A true CN115870680A (en) | 2023-03-31 |
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| CN202111143643.8A Pending CN115870680A (en) | 2021-09-28 | 2021-09-28 | Welding deformation control device and method thereof |
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2021
- 2021-09-28 CN CN202111143643.8A patent/CN115870680A/en active Pending
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