Aircraft engine ring part alignment welding device

Abstract

The application provides an aero-engine annular part alignment welding device and belongs to the technical field of annular part welding. The device comprises a welding device, a mounting seat is arranged on the top of the welding device, an electric sliding rail is arranged on the top of the mounting seat, a rotating seat is arranged on the output end of the electric sliding rail, a first servo motor is fixedly connected to the front end of the rotating seat, the first servo motor is arranged on the right side of the mounting seat, and a second servo motor is arranged on the right side of the rotating seat. The device has the advantages that it is suitable for multiple types of annular parts, does not need to customize special fixtures, and reduces the cost; the cleaning sponge can wipe the welding opening impurities and reduce welding defects; multiple positioning supports and precise butt joint can guarantee the welding precision; directional cold air cooling can avoid part thermal deformation; multiple component automation cooperation can improve the production efficiency; flexible contact design can protect the part surface and reduce the waste rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ring-shaped part welding, in particular to an aero-engine ring-shaped part alignment welding device. BACKGROUND

[0002] Gas shielded welding is divided into manual tungsten argon arc welding, automatic tungsten argon arc welding and submerged arc welding, among which tungsten argon arc welding is most widely used in the aviation industry. This method has good visibility of arc and molten pool, is easy to operate, has no or little slag, is suitable for welding in various positions, and can weld almost all metal materials. The welding of metal pipes of aero-engines usually adopts manual argon arc welding.

[0003] However, the existing ring-shaped parts usually need to be customized with a set of fixtures to support the ring-shaped parts during welding due to different models, which is high in cost and reduces the production efficiency of the aero-engine. When welding two ring-shaped parts together, the lack of internal support and cleaning of the inner side of the welding interface causes dust to be inside the welding interface during welding, which affects the welding effect in the later stage. In addition, due to the lack of internal auxiliary positioning, if the two ring-shaped parts are slightly offset by the welding head during the welding process, the welding precision will be reduced. Moreover, due to the high temperature inside the ring-shaped part during welding, thermal stress may cause deformation of the parts. Therefore, the present application provides an aero-engine ring-shaped part alignment welding device to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an aero-engine ring-shaped part alignment welding device to solve the problems of the lack of internal support and cleaning of the inner side of the welding interface, which affects the welding effect, and the lack of internal auxiliary positioning, as well as the high temperature inside the ring-shaped part, which may cause deformation of the parts.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] An aero-engine annular part alignment welding device, comprising a welding device, a mounting seat is mounted on the top of the welding device, an electric sliding rail is arranged on the top of the mounting seat, a rotating seat is mounted on the output end of the electric sliding rail, a first servo motor is fixedly connected to the front end of the rotating seat, the first servo motor is mounted on the right side of the mounting seat, and a second servo motor is mounted on the right side of the rotating seat; a positioning clamping assembly is mounted on the output end of the second servo motor, and the positioning clamping assembly is used for clamping and positioning annular parts of different models; a driving assembly is mounted on the right end of the positioning clamping assembly, an auxiliary positioning assembly is inserted and mounted on the side wall of the driving assembly, the driving assembly is used for driving the auxiliary positioning assembly, the auxiliary positioning assembly is used for supporting the inner wall of the annular part of different models, and internal positioning work is performed during auxiliary cleaning and welding; a wind collecting cylinder is mounted on the right end of the driving assembly, an eddy current fan is mounted on the inner wall of the wind collecting cylinder, a refrigeration pipe is sleeved on the inner side of the eddy current fan, and a wind distributing cylinder is mounted on the end of the wind collecting cylinder.

[0007] Optionally, the position of the refrigeration pipe is arranged at the outside opening of the wind collecting cylinder, and outside the air outlet of the eddy current fan, the shape of the wind distributing cylinder is arranged as a conical type, and the sharp part faces the air outlet of the eddy current fan.

[0008] Optionally, the positioning clamping assembly comprises a base, the base is mounted on the output end of the second servo motor, a sliding column is mounted on the right side of the base, a first rack is mounted on one side of the sliding column, a first gear is meshingly connected to one side of the first rack, and a third servo motor is mounted at the bottom of the first gear.

[0009] Optionally, a bottom support plate is fixedly connected to one side of the third servo motor, the bottom support plate is slidingly sleeved on the surface of the sliding column, a fourth servo motor is mounted on the inner wall of the right end of the sliding column, and the bottom support plate is composed of a plurality of baffles.

[0010] Optionally, the driving assembly comprises a mounting box, the mounting box is mounted on the output end of the fourth servo motor, a fifth servo motor is fixedly connected to the inner side of the mounting box, a second gear is mounted on the output end of the fifth servo motor, a third gear is meshingly connected to one side of the second gear, a first threaded telescopic rod is inserted into the middle of the third gear, a fourth gear is meshingly connected to one side of the third gear, a bevel gear set is axially connected to one side of the fourth gear, a fifth gear is mounted on the top of the bevel gear set, and a sixth gear is meshingly connected to one side of the fifth gear.

[0011] Optionally, a second threaded telescopic rod is inserted into the middle of the sixth gear, the first threaded telescopic rod and the second threaded telescopic rod are both composed of a threaded rod and a threaded sleeve, are divided into left and right parts, and the threaded directions of the left and right parts are opposite.

[0012] Optionally, the auxiliary positioning assembly comprises a support arm, the support arm is respectively installed at the end of the first screw telescopic rod and the second screw telescopic rod, one side of the support arm is installed with a sixth servo motor, the output end of the sixth servo motor is installed with a seventh gear, one side of the seventh gear is meshed with an eighth gear, the bottom of the eighth gear is installed with a rotating arm, one side of the rotating arm is installed with a half-tooth ring, one side of the support arm is slidably connected with a second rack, one side of the second rack is installed with an elastic push plate, the second rack is meshed with the half-tooth ring, the support arm and the rotating arm are connected through a hinge at the bottom of the support arm, and the hinge is fixedly welded at the bottom of the support arm.

[0013] Optionally, one end of the rotating arm is installed with a first rubber plate, the outer side of the rotating arm is installed with a gas cylinder, the end of the rotating arm is installed with an electric telescopic arm, the output end of the gas cylinder is connected to one side of the electric telescopic arm shell, the inner side of the electric telescopic arm shell is installed with a second rubber plate, the other side of the electric telescopic arm shell is rotatably connected with a roller set, the output end of the electric telescopic arm is installed with an inner support plate, and one side of the output end of the electric telescopic arm is installed with an inner positioning sleeve.

[0014] Optionally, the number of the mounting seat, the electric slide rail, the rotating seat, the first servo motor, the second servo motor, the wind collecting cylinder, the eddy current fan, the refrigeration pipe, the air distributing cylinder, the positioning and clamping assembly, the driving assembly and the auxiliary positioning assembly is two, and they are symmetrically installed on the top of the welding equipment, one side of the inner positioning rod of one of the auxiliary positioning assemblies is installed with an inner positioning sleeve, and one side of the inner positioning rod of the other auxiliary positioning assembly is installed with an inner positioning rod.

[0015] Optionally, the inner diameter of the inner positioning sleeve is the same as the outer diameter of the inner positioning rod, and the first rubber plate and the second rubber plate are detachably sleeved with a cleaning sponge.

[0016] Compared with the prior art, the present application has at least the following advantages:

[0017] In the above scheme, by adjusting the positioning and clamping assembly, the structure of the sliding column can adapt to the preliminary sleeving requirements of ring-shaped parts with different inner diameters, without the need to customize a dedicated support clamp for each type, thereby greatly reducing the purchase and replacement costs of the clamp.

[0018] The first rubber plate is mounted at the end of the rotating arm of the auxiliary positioning assembly, and the second rubber plate is mounted on the inner side of the electric telescopic arm shell. The two are externally detachably sleeved with a cleaning sponge. In the positioning process of the annular part, the first servo motor is started to drive the annular part to rotate, and at the same time, the electric telescopic arm is pushed by the cylinder to make the roller group fit the outer side of the annular part to limit the position. At this time, the cleaning sponge of the first rubber plate and the second rubber plate can rotate and wipe the welded butt joint edge and the inner side of the edge of the annular part, effectively removing dust, debris and other impurities, avoiding impurities from being melted into the molten pool during welding, reducing welding defects (such as pores and slag inclusion), ensuring the strength of the welded joint, and at the same time, the cleaning sponge is designed to be detachable. After long-term use and wear and tear or pollution, it can be quickly replaced without the need to disassemble the entire positioning assembly, reducing maintenance difficulty and time cost, and ensuring that the cleaning effect is always stable.

[0019] After the support arm of the auxiliary positioning assembly is adjusted in distance by the threaded telescopic rod to support the inner wall, the sixth servo motor drives the rotating arm to rotate 90 degrees, so that the rotating arm and the support arm are in a transverse horizontal state. At the same time, the half-tooth ring pushes the second rack to drive the elastic push plate to push out outward, flexibly assisting in pushing the inner wall of the annular part, avoiding damage to the surface of the part by hard support, and further enhancing the adhesion of the inner wall. In addition, the inner support plate at the end of the electric telescopic arm can be flush with the top butt joint edge of the annular part, assisting in limiting the position from the end during welding to prevent the part from shifting up and down.

[0020] By symmetrically arranging two groups of auxiliary positioning assemblies, the output end of the electric telescopic arm of one group of auxiliary positioning assemblies is mounted with an inner positioning sleeve, and the other group is mounted with an inner positioning rod, and the inner diameter of the inner positioning sleeve is the same as the outer diameter of the inner positioning rod. During the butt joint welding stage, when the two electric slides push the annular parts to move towards the middle, the inner positioning rod can be accurately inserted into the inner positioning sleeve to form a "rod-sleeve" butt joint structure, realizing integrated positioning of the two groups of auxiliary positioning assemblies, ensuring that the two annular parts are completely aligned at the welding joint, avoiding welding misalignment (such as misaligned edges and uneven gaps) caused by misalignment during butt joint, ensuring that the welding precision meets the high requirements of aero-engine parts, and during welding, the two electric telescopic arms are synchronously pushed outward, and under the synergistic action of the inner support plate and the inner positioning sleeve and the inner positioning rod, the inner side of the annular part welding joint is supported in real time to offset the pushing force generated during welding of the welding head, preventing a small amount of displacement at the joint of the two annular parts, and further ensuring the flatness and consistency of the welding joint.

[0021] A vortex fan is mounted on the inner wall of the wind collecting cylinder at the right end of the driving assembly. During welding, the high-speed gas blown by the vortex fan carries cold air when flowing through the refrigeration pipe, and then the cold air is guided by the air distributing cylinder to be diffused to the inner side of the annular part welding joint, forming a directional and uniform cold air cooling area, which can quickly remove the local high temperature generated during welding, reducing the internal thermal stress of the annular part. The annular parts of the aero-engine are mostly made of metal materials, and high temperature during welding can easily cause the parts to deform due to thermal expansion and contraction. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0023] Figure 1 A three-dimensional structural diagram of a welding device for aligning ring-shaped parts of an aero-engine.

[0024] Figure 2 This is a schematic diagram of a portion of the welding equipment.

[0025] Figure 3 This is a structural diagram of the sliding column and the bottom support plate;

[0026] Figure 4 This is a schematic diagram of the drive component.

[0027] Figure 5 A schematic diagram of the structure of the vortex fan and the air-concentrating duct;

[0028] Figure 6 A schematic diagram of the auxiliary positioning component;

[0029] Figure 7 This is a schematic diagram of the auxiliary positioning component on the right side of the welding equipment.

[0030] Figure 8 This is a schematic diagram of the integrated structure of the auxiliary positioning components on the left and right sides of the welding equipment.

[0031] Figure 9 A schematic diagram of the initial state structure of the welding device for the ring-shaped parts of an aero-engine.

[0032] Figure 10 A schematic diagram illustrating the operation of the ring-shaped part of the auxiliary positioning component during cleaning.

[0033] Reference numerals: 1. Welding equipment; 10. Mounting base; 11. Electric slide rail; 12. Rotating base; 13. First servo motor; 14. Second servo motor; 15. Concentrating air duct; 16. Vortex fan; 17. Refrigeration pipe; 18. Distributing air duct; 2. Positioning and clamping assembly; 20. Base; 21. Sliding column; 22. First rack; 23. First gear; 24. Third servo motor; 25. Base support plate; 26. Fourth servo motor; 3. Drive assembly; 30. Mounting box; 31. Fifth servo motor; 32. Second gear; 33. Third gear; 34. First... 35. Threaded telescopic rod; 36. Fourth gear; 37. Helical gear set; 38. Fifth gear; 39. Sixth gear; 40. Second threaded telescopic rod; 51. Auxiliary positioning assembly; 62. Support arm; 43. Sixth servo motor; 44. Seventh gear; 45. Eighth gear; 46. Rotating arm; 47. Half-tooth ring; 48. Second rack; 49. Elastic push plate; 40. First rubber plate; 41. Cylinder; 492. Electric telescopic arm; 493. Second rubber plate; 494. Roller assembly; 495. Inner support plate; 496. Inner positioning sleeve; 497. Inner positioning rod.

[0034] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0035] The following is a detailed description of a welding device for annular parts of an aero-engine provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0036] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0037] In general, the terminology can be understood at least in part from a context of a use of the language within a description. For example, the term“one or more” as used herein, depending at least in part upon a context of a usage, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Additionally, the term“based on” can be understood as not necessarily intended to convey an exclusive set of factors, but rather can, at least

[0038] It will be understood that the terms“on,”“over,” and“above,” in the present invention, should be interpreted in the broadest context possible so that“on” not only means“directly on” something but also includes the meaning of being“on” something with intervening features or layers therebetween, and“over” or“above” not only means the meaning of being“over” or“above” something but also can include the meaning of being“over” or“above” something with no intervening features or layers therebetween.

[0039] In addition, spatially relative terms, such as“beneath,”“below,”“lower,”“above,”“upper,” and the like, can be used herein for ease of description to describe one element or feature’s relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can likewise be interpreted accordingly.

[0040] As Figures 1 to 10As shown, the embodiment of the application provides an aero-engine annular part alignment welding device, which comprises a welding device 1, the top of the welding device 1 is provided with a mounting seat 10, the top of the mounting seat 10 is provided with an electric sliding rail 11, the output end of the electric sliding rail 11 is provided with a rotating seat 12, the front end of the rotating seat 12 is fixedly connected with a first servo motor 13, one side of the first servo motor 13 is mounted on the right side of the mounting seat 10, and the right side of the rotating seat 12 is provided with a second servo motor 14; the output end of the second servo motor 14 is provided with a positioning and clamping assembly 2, which is used for clamping and positioning different models of annular parts; the right end of the positioning and clamping assembly 2 is provided with a driving assembly 3, the side wall of the driving assembly 3 is inserted and mounted with an auxiliary positioning assembly 4, the driving assembly 3 is used for driving the auxiliary positioning assembly 4, the auxiliary positioning assembly 4 is used for supporting the inner wall of different models of annular parts, and simultaneously assisting in cleaning and positioning in the interior during welding; the right end of the driving assembly 3 is provided with a wind collecting cylinder 15, the inner wall of the wind collecting cylinder 15 is provided with an eddy current fan 16, the inner side of the eddy current fan 16 is sleeved with a refrigeration pipe 17, the end of the wind collecting cylinder 15 is provided with a wind distributing cylinder 18, the position of the refrigeration pipe 17 is arranged at the opening on the outer side of the wind collecting cylinder 15, and simultaneously at the outer side of the air outlet of the eddy current fan 16, the shape of the wind distributing cylinder 18 is arranged as a conical type, and the sharp part faces the air outlet of the eddy current fan 16, which reduces the subsequent correction process, improves the production efficiency, and after welding is completed, the air blowing can be continued, the cooling of the joint is accelerated, the cooling waiting time is shortened, the temperature of the welding area can be controlled in real time through the cooling design, plastic deformation caused by excessive temperature is avoided, and the size accuracy and shape stability of the annular part after welding are ensured.

[0041] As shown in Figure 2 and Figure 3 The positioning and clamping assembly 2 comprises a base 20, the base 20 is mounted at the output end of the second servo motor 14, the right side of the base 20 is provided with a sliding column 21, one side of the sliding column 21 is provided with a first rack 22, one side of the first rack 22 is engagedly connected with a first gear 23, the bottom of the first gear 23 is provided with a third servo motor 24, one side of the third servo motor 24 is fixedly connected with a bottom support plate 25, the bottom support plate 25 is slidingly sleeved on the surface of the sliding column 21, the right end inner wall of the sliding column 21 is provided with a fourth servo motor 26, the bottom support plate 25 is composed of a plurality of baffles, the bottom support plate 25 in the positioning and clamping assembly 2 is composed of a plurality of baffles, and the bottom support plate 25 can be driven to move up and down along the sliding column 21 by driving the first gear 23 to rotate on the first rack 22 through the third servo motor 24, which can stably support annular parts of different heights and adjust the position of the annular parts.

[0042] As shown in Figure 4As shown, the driving assembly 3 comprises a mounting box 30 mounted at the output end of the fourth servo motor 26, the inner side of the mounting box 30 is fixedly connected with a fifth servo motor 31, the output end of the fifth servo motor 31 is mounted with a second gear 32, one side of the second gear 32 is meshedly connected with a third gear 33, the middle part of the third gear 33 is inserted with a first threaded telescopic rod 34, one side of the third gear 33 is meshedly connected with a fourth gear 35, one side of the fourth gear 35 is axially connected with a bevel gear set 36, the top of the bevel gear set 36 is mounted with a fifth gear 37, one side of the fifth gear 37 is meshedly connected with a sixth gear 38, the middle part of the sixth gear 38 is inserted with a second threaded telescopic rod 39, the first threaded telescopic rod 34 and the second threaded telescopic rod 39 are both composed of threaded rods and threaded sleeves, are divided into left and right two parts, and the threaded directions of the left and right two parts are opposite, the fifth servo motor 31 of the driving assembly 3 drives the multiple gears and the threaded telescopic rods to be linked, so that the first threaded telescopic rod 34 and the second threaded telescopic rod 39 are synchronously moved to the outside or the inside, and then a supporting arm 40 is pushed to adjust the interval, the design can make the auxiliary positioning assembly 4 support from the inner wall of the annular part, adapt to annular parts with different inner diameters, solve the limitation of the traditional clamp "one part one clamp", and improve the universality of the equipment.

[0043] As Figures 6 to 10As shown, the auxiliary positioning assembly 4 comprises a support arm 40 mounted at the end of the first and second threaded telescopic rods 34 and 39, respectively, one side of the support arm 40 is provided with a sixth servo motor 41, the output end of the sixth servo motor 41 is provided with a seventh gear 42, one side of the seventh gear 42 is engaged with an eighth gear 43, the bottom of the eighth gear 43 is provided with a rotating arm 44, one side of the rotating arm 44 is provided with a half-tooth ring 45, one side of the support arm 40 is slidably connected with a second rack 46, one side of the second rack 46 is provided with an elastic push plate 47, the second rack 46 is engaged with the half-tooth ring 45, the support arm 40 and the rotating arm 44 are connected through a hinge at the bottom, the part of the hinge at the bottom of the support arm 40 is fixedly welded, one end of the rotating arm 44 is provided with a first rubber plate 48, the outer side of the rotating arm 44 is provided with an air cylinder 49, the end of the rotating arm 44 is provided with an electric telescopic arm 491, the output end of the air cylinder 49 is connected to one side of the electric telescopic arm 491 housing, the inner side of the electric telescopic arm 491 housing is provided with a second rubber plate 492, the other side of the electric telescopic arm 491 housing is rotatably connected with a roller set 493, the elastic push plate 47 in the auxiliary positioning assembly 4 is made of elastic material, which can produce flexible contact when pushing the inner wall of the annular part, avoiding hard extrusion which may cause scratches or deformation on the surface of the part; the first and second rubber plates 48 and 492 have certain elasticity, which can cooperate with the cleaning sponge to ensure cleaning effect and reduce friction damage to the butt joint edge of the annular part, avoid surface quality problems caused by positioning support, reduce scrap rate, the output end of the electric telescopic arm 491 is provided with an inner support plate 494, one side of the output end of the electric telescopic arm 491 is provided with an inner positioning sleeve 495, the number of the mounting seat 10, the electric sliding rail 11, the rotating seat 12, the first and second servo motors 13 and 14, the wind collecting cylinder 15, the eddy current fan 16, the refrigeration pipe 17, the air distributing cylinder 18, the positioning and clamping assembly 2, the driving assembly 3 and the auxiliary positioning assembly 4 is two, which are symmetrically installed on the top of the welding equipment 1, one side of the inner positioning rod 496 of one auxiliary positioning assembly 4 is provided with an inner positioning sleeve 495, then the other auxiliary positioning assembly 4 is provided with an inner positioning rod 496 on one side, the inner diameter of the inner positioning sleeve 495 is the same as the outer diameter of the inner positioning rod 496, the first and second rubber plates 48 and 492 are detachably provided with cleaning sponges, the annular part is loaded, the electric sliding rail 11 is moved away, the rotating seat 12 is turned 90 degrees to facilitate the setting, positioning, cleaning and butt joint to the welding and cooling, the whole process is driven and controlled by the servo motors, the first to sixth servo motors 41, the air cylinder 49 and the electric telescopic arm 491, without manual adjustment, reducing human operation error and time consumption, the cleaning process can be completed simultaneously in the positioning process, without additional part transfer, the butt joint positioning and welding cooling are performed simultaneously, avoiding waiting gap between processes, improving overall production efficiency.

[0044] The technical scheme provided by the application has the following working principle:

[0045] First, the left and right electric sliding rails 11 are started to move outward to create space for loading, and then the first servo motor 13 is started to drive the rotating seat 12 to rotate 90 degrees from the horizontal state to the vertical state, and then the annular part is sleeved on the sliding column 21 and placed on the bottom support plate 25, and then the first servo motor 13 is started to rotate in the opposite direction by 90 degrees to vertically flip the annular part.

[0046] The third servo motor 24 is started to drive the first gear 23 to rotate, and then the first gear 23 rotates on the meshing connected first rack 22 to drive the bottom support plate 25 to move up and down, and the annular part is lifted up to make the top of the annular part reach the outside of the plurality of support arms 40 and be non-contactingly surrounded on the plurality of support arms 40.

[0047] The fifth servo motor 31 is started to drive the second gear 32 to rotate, and the third gear 33 is driven to rotate, and then the threaded rod part of the first threaded telescopic rod 34 rotates in the sleeve to push the sleeve outward, and the support arm 40 is moved outward; at the same time, the third gear 33 also drives the fourth gear 35 to rotate, the fourth gear 35 drives the coaxial bevel gear set 36 to rotate, the bevel gear set 36 drives the fifth gear 37 above to rotate, at this time the fifth gear 37 drives the sixth gear 38 to rotate, the sixth gear 38 drives the threaded rod part of the second threaded telescopic rod 39 in the middle to rotate synchronously, at this time the sleeve parts at both ends are synchronously pushed outward, and the plurality of support arms 40 are moved outward until abutting against the inner wall of the annular part to support the annular part from the inside.

[0048] Then the third servo motor 24 is started again to drive the first gear 23 to rotate, and then the first gear 23 rotates on the meshing connected first rack 22 to drive the bottom support plate 25 to move up and down, and the inner side of the annular part is pushed up by the outer wall of the support arm 40, the material of the support arm 40 is rubber, so it will not damage the inner wall of the annular part, and the top of the annular part is embedded between the second rubber plate 492 and the first rubber plate 48, at the same time the cylinder 49 starts to work to push the electric telescopic arm 491 to retreat to adjust the position, and the roller set 493 inside the electric telescopic arm 491 is attached to the outer side surface of the annular part to limit the position.

[0049] When the inner side, top and bottom of the annular part are clamped and supported, the cleaning sponge is directly contacted due to the fact that the cleaning sponge is sleeved outside the second rubber plate 492 and the first rubber plate 48 in advance, and the first servo motor 13 is started to drive the sliding column 21 and the annular part fixed thereon to rotate. The friction force of the roller set 493 is small, and the roller set 493 is limited on the surface of the annular part to stably rotate and wipe the annular part on the surface between the second rubber plate 492 and the first rubber plate 48. The cleaning sponge of the second rubber plate 492 and the first rubber plate 48 removes the dust on the welding butt edge and the inner side of the edge of the annular part, so as to prevent the welding effect from being affected. After the dust is removed, the cylinder 49 is extended outward to be away from the outer surface of the annular part.

[0050] Then, the third servo motor 24 is started again to drive the first gear 23 to rotate, the bottom support plate 25 is driven to move downward, the top of the annular part is separated from the second rubber plate 492 and the first rubber plate 48, the sixth servo motor 41 is started after the height of the annular part is lowered, the seventh gear 42 is driven to rotate, the eighth gear 43 is driven to rotate, the eighth gear 43 drives the rotating arm 44 to rotate by 90 degrees, the half gear ring 45 on one side of the rotating arm 44 pushes the second rack 46 engaged therewith outward, the second rack 46 drives the elastic push plate 47 to push outward, and the inner wall of the annular part is flexibly and assistively pushed by the elastic force of the elastic push plate 47.

[0051] Then, the rotating arm 44 is rotated by 90 degrees, and the rotating arm 44 and the support arm 40 are in a transverse horizontal state (as shown in Figure 8 The third servo motor 24 is started again to drive the first gear 23 to rotate, the bottom support plate 25 is driven to move upward, the annular part is pushed upward by the bottom support plate 25, and the top butt edge of the annular part is flush with the inner support plate 494.

[0052] When the support work is basically completed, the left and right electric sliding rails 11 are started to move synchronously to the middle, the two annular parts to be welded are pushed to the welding machine (not marked in the figure) in the middle, and the edges of the two annular parts are butted. Since the inner sides of the two annular parts are assisted by the auxiliary positioning assembly 4, the electric telescopic arms 491 at the ends are folded at this position. At this time, the inner positioning rod 496 on one side of the left electric telescopic arm 491 is accurately inserted into the inner positioning sleeve 495 on one side of the right electric telescopic arm 491 (as shown in Figure 8In the shown), the integrated support measures are formed, the positioning of the multiple two groups of auxiliary positioning assemblies 4 is completed, and the two sides of the electric telescopic arm 491 are simultaneously pushed outward. At the same time, the inside of the welding seam of the annular part is supported to prevent displacement of the joint of the two annular parts during welding, resulting in a decrease in accuracy. Finally, the welding machine is started, and the rotation of the second servo motor 14 is started to perform the welding work of the annular part.

[0053] At the same time of welding, the eddy current fan 16 and the refrigeration pipe 17 start to work. The high-speed gas blown by the eddy current fan 16 blows the cold air on the surface of the refrigeration pipe 17 to the surface of the wind collecting cylinder 15. Due to the shape of the wind collecting cylinder 15, the cold air will spread outward along the conical streamline, and the inside of the welding seam of the annular part is blown with cold air to produce a continuous heat dissipation effect, prevent the thermal stress caused by high temperature during welding, and make the annular part deformed. After the welding is completed, the cold air can also be blown to quickly cool the welded seam.

[0054] The present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0055] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A welding device for aligning ring-shaped parts of an aero-engine, characterized in that, The equipment includes welding equipment, with a mounting base installed on the top of the welding equipment. An electric slide rail is provided on the top of the mounting base. A rotating seat is installed at the output end of the electric slide rail. A first servo motor is fixedly connected to the front end of the rotating seat. One side of the first servo motor is installed on the right side of the mounting base. A second servo motor is installed on the right side of the rotating seat. The output end of the second servo motor is equipped with a positioning and clamping assembly, which is used to clamp and position ring parts of different models. A drive component is installed at the right end of the positioning and clamping assembly, and an auxiliary positioning component is inserted into the side wall of the drive component. The drive component is used to drive the auxiliary positioning component, and the auxiliary positioning component is used to support the inner wall of different types of annular parts, and to perform internal positioning work during auxiliary cleaning and welding. A concentrator is installed at the right end of the drive assembly, a vortex fan is installed on the inner wall of the concentrator, a refrigeration pipe is sleeved on the inner side of the vortex fan, and a distributor is installed at the end of the concentrator. The positioning and clamping assembly includes a base, which is installed at the output end of the second servo motor. A sliding column is installed on the right side of the base, a first rack is installed on one side of the sliding column, a first gear is meshed on one side of the first rack, and a third servo motor is installed at the bottom of the first gear. The third servo motor is fixedly connected to a bottom support plate on one side. The bottom support plate is slidably sleeved on the surface of the sliding column. A fourth servo motor is installed on the inner wall of the right end of the sliding column. The bottom support plate is composed of multiple baffles. The drive assembly includes a mounting box, which is installed at the output end of a fourth servo motor. A fifth servo motor is fixedly connected to the inside of the mounting box. A second gear is installed at the output end of the fifth servo motor. A third gear is meshed with one side of the second gear. A first threaded telescopic rod is inserted into the middle of the third gear. A fourth gear is meshed with one side of the third gear. A helical gear set is axially connected to one side of the fourth gear. A fifth gear is installed at the top of the helical gear set. A sixth gear is meshed with one side of the fifth gear. The sixth gear is connected to a second threaded telescopic rod in the middle. Both the first and second threaded telescopic rods are composed of threaded rods and threaded sleeves, and are divided into left and right parts, with the thread directions of the left and right parts being opposite. The auxiliary positioning component includes a support arm, which is respectively installed at the ends of the first threaded telescopic rod and the second threaded telescopic rod. A sixth servo motor is installed on one side of the support arm, and a seventh gear is installed at the output end of the sixth servo motor. An eighth gear is meshed with one side of the seventh gear, and a rotating arm is installed at the bottom of the eighth gear. A semi-toothed ring is installed on one side of the rotating arm, and a second rack is slidably connected to one side of the support arm. An elastic push plate is installed on one side of the second rack, and the second rack is meshed with the semi-toothed ring. The bottom of the support arm and the rotating arm are connected by a hinge, and the portion of the hinge at the bottom of the support arm is fixedly welded.

2. The aero-engine annular part alignment welding device according to claim 1, characterized in that, The cooling pipe is positioned at the outer opening of the air-collecting duct and at the outer side of the air outlet of the vortex fan. The air-distributing duct is cone-shaped with its sharp end facing the air outlet of the vortex fan.

3. The aero-engine annular part alignment welding device according to claim 2, characterized in that, A first rubber plate is installed at one end of the rotating arm, a cylinder is installed on the outer side of the rotating arm, an electric telescopic arm is installed at the end of the rotating arm, the output end of the cylinder is connected to one side of the electric telescopic arm housing, a second rubber plate is installed on the inner side of the electric telescopic arm housing, a roller assembly is nested and rotatably connected to the other side of the electric telescopic arm housing, and an inner support plate is installed at the output end of the electric telescopic arm.

4. The aero-engine annular part alignment welding device according to claim 3, characterized in that, The mounting base, electric slide rail, rotating base, first servo motor, second servo motor, air concentrator, vortex fan, cooling pipe, air distribution duct, positioning clamping assembly, drive assembly, and auxiliary positioning assembly are set to two sets, which are symmetrically installed on the top of the welding equipment. One set of the auxiliary positioning assembly has an inner positioning sleeve installed on one side of the output end of the electric telescopic arm, and the other set of the auxiliary positioning assembly has an inner positioning rod installed on one side of the output end of the electric telescopic arm.

5. The aero-engine annular part alignment welding device according to claim 4, characterized in that, The inner diameter of the inner positioning sleeve is the same as the outer diameter of the inner positioning rod, and a cleaning sponge is detachably sleeved on the outside of the first rubber plate and the second rubber plate.

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