Spoke type cartridge receiver electron beam welding flexible clamping device

Abstract

The invention relates to the field of aviation part clamping, and discloses a spoke type cartridge receiver electron beam welding flexible clamping device which comprises a base and a clamping mechanism. The base comprises a mother disc and an annular disc, the mother disc is connected with a son disc through a zero point positioning system, and the son disc and the mother disc are located on the same central axis; a plurality of base plates are arranged on the sub-disc in the circumferential direction, rolling wheels are arranged on the base plates, an annular sliding rail is arranged on the inner circle of the annular disc, and the rolling wheels are matched with the annular sliding rail; a worm is rotationally arranged on the sub-disc, a transmission strip is arranged on the bottom face of the annular disc and meshed with the worm, and a plurality of connecting pieces are arranged on the top face of the annular disc in the circumferential direction. And through the design of the centering mechanism and the clamping mechanism, high-precision positioning of the to-be-welded assembly is achieved, and the strict requirement for aero-engine manufacturing is met. The clamping device is simple in structure, convenient to operate and capable of being quickly operated by workers. And through the design of the quick-change wrench and the telescopic mechanism, the operation efficiency can be remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping of aviation parts, and particularly to a flexible clamping device for electron beam welding of a spoke-type casing. Background Art

[0002] As a core component of modern aircraft, the performance, reliability and economy of an aeroengine directly affect the overall performance of the aircraft. During the manufacturing process of the engine, as a key load-bearing component, the welding quality of the spoke-type casing has an important impact on the performance, life and safety of the engine.

[0003] The spoke-type casing is usually formed by welding multiple parts through a precision welding process. Extremely strict requirements are imposed on the welding quality of these parts to ensure performance and safety under extreme working conditions.

[0004] Traditional welding processes mainly rely on manual operation or semi-automatic equipment, and these methods have some insurmountable problems. First, due to the complex structure of the parts, it is difficult to guarantee the positioning accuracy during the welding process, and welding defects such as lack of fusion, cracks and deformation are likely to occur. Second, currently existing welding clamping devices often lack sufficient stability and are difficult to effectively fix the casing, resulting in the casing being prone to displacement during the welding process, thereby further increasing the possibility of generating welding defects. In addition, existing welding processes and equipment also have deficiencies in terms of operation convenience and production efficiency. Operators need to spend a lot of time and effort on positioning and clamping the casing, which not only increases the labor intensity but also reduces the production efficiency, and it is difficult to effectively achieve batch and standardized production.

[0005] With the rapid development of the aviation industry, the requirements for the performance of aeroengines are continuously increasing, and traditional welding processes have been difficult to meet the manufacturing requirements of modern aeroengines. Summary of the Invention

[0006] The purpose of the present invention is to provide a flexible clamping device for electron beam welding of a spoke-type casing to enhance the accuracy, stability and operation convenience of welding.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A flexible clamping device for electron beam welding of a spoke-type casing, including a component to be welded, the component to be welded includes an inner ring, blades and an outer ring, there are several blades, and several blades are circumferentially arranged between the inner ring and the outer ring, and further includes a base and a clamping mechanism; The base includes a master disk and an annular disk. The master disk is connected to the slave disk through a zero-point positioning system, and the slave disk and the master disk are on the same central axis. A number of pads are circumferentially arranged on the slave disk, and rollers are provided on the pads. An annular slide rail is provided on the inner circle of the annular disk, and the rollers are matched with the annular slide rail. A worm is rotatably arranged on the slave disk. A transmission strip is provided on the bottom surface of the annular disk, and the transmission strip is engaged with the worm. A number of connecting pieces are circumferentially arranged on the top surface of the annular disk. The clamping mechanism includes a clamping base and an auxiliary top disk. The clamping base is fixedly installed on the slave disk. A centering mechanism is provided at the center of the clamping base. A number of clamping pieces are provided on the clamping base, and the clamping pieces are used for clamping the blade. A number of telescopic mechanisms are also provided on the clamping base, and the telescopic mechanisms are used for supporting the outer ring. The connecting piece is connected to the auxiliary top disk. A number of convex blocks are provided on the auxiliary top disk. The outer surface of the convex block is inclined, and the outer surface of the convex block is matched with the telescopic mechanism.

[0008] Preferably, the centering mechanism includes a centering bolt and a centering base. The centering base is installed at the center of the clamping base. A centering circular hole is opened at the center of the clamping base, and the centering bolt is placed in the centering circular hole. A centering pressure plate is sleeved outside the centering bolt, and a centering nut is screwed on the top end of the centering bolt. A quick-change wrench is sleeved outside the centering bolt, and the quick-change wrench is placed between the centering nut and the centering pressure plate.

[0009] Preferably, both the centering base and the inner ring are provided with pin holes, and the two pin holes are matched through a positioning pin.

[0010] Preferably, a number of through holes are circumferentially arranged on the clamping base, and the connecting piece passes through the through hole and is connected to the auxiliary top disk.

[0011] Preferably, the zero-point positioning system includes a number of zero-point positioning blocks, and the number of zero-point positioning blocks are circumferentially arranged on the master disk.

[0012] Preferably, the end of the worm protrudes from the slave disk, and a prism for matching a torque wrench is provided at the end of the worm.

[0013] Preferably, the telescopic mechanism includes a telescopic pad, a sliding guide rail, a strengthening block and a top plate. The telescopic pad is installed on the clamping base, and a sliding guide rail is provided on the telescopic pad. A strengthening block is slidably connected to the sliding guide rail, and a top plate is provided on the outside of the strengthening block. The strengthening block is matched with the outer surface of the convex block, and the top plate is matched with the inner surface of the outer ring.

[0014] Preferably, a number of auxiliary pads are provided on the clamping base, and the auxiliary pads and the clamping pieces are on the same radius.

[0015] Preferably, an outer ring cushion block is provided at the upper edge of the clamping base, and the outer ring cushion block is matched with the outer ring.

[0016] Preferably, a pressing handle is provided on the upper surface of the sub-disk, and the pressing handle is matched with the outer ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) High-precision positioning: Through the design of the centering mechanism and the clamping mechanism, high-precision positioning of the component to be welded is achieved, meeting the strict requirements of aero-engine manufacturing.

[0018] (2) Simple operation: The clamping device has a simple structure and is easy to operate, enabling the staff to quickly get started. The design of the quick-change wrench and the telescopic mechanism can significantly improve the operation efficiency.

[0019] (3) Improve welding quality: High-precision positioning and stable clamping function ensure the stability of the welding process, improve the welding quality, and reduce the welding defect rate.

[0020] (4) Shorten the production cycle: By optimizing the design of the clamping device, the preparation time before welding and the adjustment time during welding are reduced, which can significantly improve the production efficiency and shorten the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the spoke-type casing electron beam welding flexible clamping device of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the spoke-type casing electron beam welding flexible clamping device of the present invention.

[0023] Figure 3 It is a schematic diagram of the centering mechanism of the present invention.

[0024] Figure 4 It is a schematic diagram of the clamping mechanism of the present invention.

[0025] Figure 5 It is a schematic diagram of the auxiliary top plate of the present invention.

[0026] Figure 6 It is a schematic diagram of the auxiliary top plate of the present invention.

[0027] Figure 7 It is a schematic diagram of the telescopic mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the component to be welded of the present invention.

[0029] Figure 9 It is a schematic diagram at the clamping base of the present invention.

[0030] 1. Base; 11. Master disk; 12. Slave disk; 13. Zero-point positioning system; 14. Roller; 15. Pad; 16. Annular slide rail; 17. Transmission bar; 18. Worm; 19. Annular disk; 110. Connecting piece; 2. Centering mechanism; 21. Centering round hole; 22. Centering bolt; 23. Centering nut; 24. Centering pressure plate; 25. Quick-change wrench; 3. Clamping mechanism; 31. Clamping base; 32. Centering base; 33. Pin hole; 34. Clamping piece; 35. Auxiliary top plate; 351. Protrusion; 36. Auxiliary cushion block; 37. Telescopic mechanism; 371. Telescopic cushion block; 372. Slide guide; 373. Reinforcing block; 374. Top plate; 38. Outer ring cushion block; 39. Compression handle; 4. Component to be welded; 41. Inner ring; 42. Blade; 43. Outer ring. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-9 , the present invention provides a technical solution: a flexible clamping device for electron beam welding of a spoke-type casing, including a component to be welded 4, the component to be welded 4 includes an inner ring 41, blades 42 and an outer ring 43, a plurality of blades 42 are provided, and the plurality of blades 42 are circumferentially arranged between the inner ring 41 and the outer ring 43, and further includes a base 1 and a clamping mechanism 3; The base 1 includes a master disk 11 and an annular disk 19, the master disk 11 is connected to the slave disk 12 through a zero-point positioning system 13, and the slave disk 12 and the master disk 11 are on the same central axis. The zero-point positioning system 13 includes a plurality of zero-point positioning blocks, and the plurality of zero-point positioning blocks are circumferentially arranged on the master disk 11 to ensure that the slave disk and the master disk are on the same central axis, thereby maintaining the stability of the base.

[0033] A plurality of pads 15 are circumferentially arranged on the slave disk 12, and rollers 14 are provided on the pads 15. An annular slide rail 16 is provided on the inner circle of the annular disk 19, and the rollers 14 cooperate with the annular slide rail 16 and are stuck in the annular slide rail 16, so that the annular disk 19 can rotate axially along the slave disk 12. A worm 18 is rotatably provided on the slave disk 12, a transmission bar 17 is provided on the bottom surface of the annular disk 19, and the transmission bar 17 meshes with the worm 18. A plurality of connecting pieces 110 are circumferentially arranged on the top surface of the annular disk 19. By rotating the worm 18, the transmission bar 17 can be driven, thereby driving the annular disk 19 and the connecting pieces 110 to rotate axially.

[0034] The clamping mechanism 3 includes a clamping base 31 and an auxiliary top plate 35, which are used to fix the inner ring 41, the blade 42 and the outer ring 43 of the component to be welded, so as to facilitate subsequent welding. The clamping base 31 is fixedly installed on the sub-plate 12. A centering mechanism 2 is provided at the center of the clamping base 31. A number of clamping members 34 are provided on the clamping base 31, and the clamping members 34 are used to clamp the blade 42. A number of telescopic mechanisms 37 are also provided on the clamping base 31, and the telescopic mechanisms 37 are used to support the outer ring 43.

[0035] Since the bottom surface of the blade 42 can be designed as an inclined surface, in order to cooperate with it, a number of auxiliary pads 36 are provided on the clamping base 31. The top surface of the auxiliary pad 36 is an inclined surface that matches the bottom surface of the blade 42, and the auxiliary pad 36 and the clamping member 34 are on the same radius. The clamping member 34 is an existing clamping device and is used to assist in fixing the blade 42.

[0036] The number of the auxiliary pads 36, the clamping members 34 and the telescopic mechanisms 37 are the same, and at the same time, it is also the same as the number of the blades 42 to be welded. In this embodiment, 15 auxiliary pads 36, clamping members 34 and telescopic mechanisms 37 are provided for the blade 42.

[0037] The connecting member 110 is connected to the auxiliary top plate 35. A number of convex blocks 351 are provided on the auxiliary top plate 35. The outer surface of the convex block 351 is inclined, and the outer surface of the convex block 351 cooperates with the telescopic mechanism 37. A number of through holes are circumferentially provided on the clamping base 31, and the connecting member 110 passes through the through holes and is connected to the auxiliary top plate 35.

[0038] The telescopic mechanism 37 includes a telescopic pad 371, a sliding guide 372, a strengthening block 373 and a top plate 374. The telescopic pad 371 is installed on the clamping base 31, and a sliding guide 372 is provided on the telescopic pad 371. A strengthening block 373 is slidably connected to the sliding guide 372, and a top plate 374 is provided on the outside of the strengthening block 373. The strengthening block 373 cooperates with the outer surface of the convex block 351, and the top plate 374 cooperates with the inner surface of the outer ring 43.

[0039] Since the outer surface of the convex block 351 is inclined, when the auxiliary top plate 35 rotates, it will drive the convex block 351 to rotate, thereby pushing the strengthening block 373 to move in the inner and outer directions, so as to achieve the extrusion effect on the inner surface of the outer ring 43.

[0040] The centering mechanism 2 includes a centering bolt 22 and a centering base 32. The centering base 32 is installed at the center position of the clamping base 31. A centering round hole 21 is provided at the center of the clamping base 31, and the centering bolt 22 is placed in the centering round hole 21. A centering pressure plate 24 is sleeved outside the centering bolt 22, and a centering nut 23 is screwed at the top end of the centering bolt 22. A quick-change wrench 25 is sleeved outside the centering bolt 22, and the quick-change wrench 25 is placed between the centering nut 23 and the centering pressure plate 24.

[0041] To further achieve the fixing effect of the inner ring 41, both the centering base 32 and the inner ring 41 are provided with pin holes 33, and the two pin holes 33 are matched by a positioning pin.

[0042] To facilitate the rotation of the worm 18, the end of the worm 18 protrudes from the sub-disk 12, and a prism for matching a torque wrench is provided at the end of the worm 18.

[0043] To achieve the overall fixing effect of the outer ring 43, an outer ring cushion block 38 is provided at the upper edge of the clamping base 31, and the outer ring cushion block 38 cooperates with the outer ring 43 to play a supporting role. A pressing handle 39 is provided on the upper surface of the sub-disk 12, and the pressing handle 39 cooperates with the outer ring 43. The pressing handle 39 can press the outer ring 43 of the component to be welded 4 located on the outer ring cushion block 38 by rotating the handle to prevent the outer ring 43 from moving during the welding process.

[0044] Working principle: Align and place the inner ring 41 of the component to be welded 4 on the centering base 32, and use the positioning pin to achieve the preliminary positioning of the inner ring 41. Then, place the centering pressure plate 24 in place, and use the quick-change wrench 25 to tighten the centering nut 23, and the inner ring 41 is fixed. Then, place the outer ring 43 of the component to be welded 4 on the outer ring cushion block 38, and manually fine-tune to ensure that the outer ring 43 is in a proper position. After that, operate the pressing handle 39 to press the bottom edge of the outer ring 43 to ensure its stability.

[0045] Manually place the blade 42 in place, with one end contacting the clamping member 34 and the other end contacting the auxiliary cushion block 36. To tension the outer ring 43 of the component to be welded 4, use an electric torque wrench to drive the worm 18. The worm 18 drives the transmission bar 17 to move, and then pushes the auxiliary top plate 35. The movement of the auxiliary top plate 35 pushes the reinforcing block 373 to move, and the movement of the reinforcing block 373 drives the top plate 374 to move, so as to achieve the proper tension of the outer ring 43. After the component to be welded 4 is installed, the welding operation can be carried out subsequently.

Claims

1. A flexible clamping device for electron beam welding of a spoke-type casing, comprising a component to be welded (4), wherein the component to be welded (4) includes an inner ring (41), blades (42) and an outer ring (43), a plurality of the blades (42) are provided, and the plurality of blades (42) are circumferentially arranged between the inner ring (41) and the outer ring (43), and is characterized in that: It also includes a base (1) and a clamping mechanism (3); The base (1) includes a master disk (11) and an annular disk (19). The master disk (11) is connected to a sub-disk (12) through a zero-point positioning system (13), and the sub-disk (12) and the master disk (11) are on the same central axis; a number of pads (15) are circumferentially arranged on the sub-disk (12), and rollers (14) are arranged on the pads (15). An annular slide rail (16) is provided on the inner circle of the annular disk (19), and the rollers (14) cooperate with the annular slide rail (16); a worm (18) is rotatably arranged on the sub-disk (12), a transmission bar (17) is provided on the bottom surface of the annular disk (19), and the transmission bar (17) meshes with the worm (18). A number of connectors (110) are circumferentially arranged on the top surface of the annular disk (19); The clamping mechanism (3) includes a clamping base (31) and an auxiliary top disk (35). The clamping base (31) is fixedly installed on the sub-disk (12). A centering mechanism (2) is provided at the center of the clamping base (31). A number of clamping members (34) are provided on the clamping base (31), and the clamping members (34) are used to clamp the blade (42). A number of telescopic mechanisms (37) are also provided on the clamping base (31), and the telescopic mechanisms (37) are used to support the outer ring (43); The connectors (110) are connected to the auxiliary top disk (35). A number of bumps (351) are provided on the auxiliary top disk (35). The outer surface of the bumps (351) is inclined, and the outer surface of the bumps (351) cooperates with the telescopic mechanism (37).

2. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, wherein: The centering mechanism (2) includes a centering bolt (22) and a centering base (32). The centering base (32) is installed at the center of the clamping base (31). A centering round hole (21) is opened at the center of the clamping base (31), and the centering bolt (22) is placed in the centering round hole (21). A centering pressure disk (24) is sleeved outside the centering bolt (22), and a centering nut (23) is screwed at the top end of the centering bolt (22); A quick-change wrench (25) is sleeved outside the centering bolt (22), and the quick-change wrench (25) is placed between the centering nut (23) and the centering pressure disk (24).

3. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 2, characterized in that: Both the centering base (32) and the inner ring (41) are provided with pin holes (33), and the two pin holes (33) are matched through a positioning pin.

4. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, characterized in that: A number of through holes are circumferentially arranged on the clamping base (31), and the connectors (110) pass through the through holes and are connected to the auxiliary top disk (35).

5. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, wherein: The zero-point positioning system (13) includes a number of zero-point positioning blocks, and the number of zero-point positioning blocks are circumferentially arranged on the master disk (11).

6. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, characterized in that: The end of the worm (18) extends out of the sub-disk (12), and a prism for matching a torque wrench is provided at the end of the worm (18).

7. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, wherein: The telescopic mechanism (37) includes a telescopic cushion block (371), a sliding guide rail (372), a reinforcing block (373) and a top plate (374). The telescopic cushion block (371) is installed on the clamping base (31), and the sliding guide rail (372) is provided on the telescopic cushion block (371). The reinforcing block (373) is slidably connected to the sliding guide rail (372), and the top plate (374) is provided on the outer side of the reinforcing block (373). The reinforcing block (373) is matched with the outer surface of the convex block (351), and the top plate (374) is matched with the inner surface of the outer ring (43).

8. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, characterized in that: A number of auxiliary cushion blocks (36) are provided on the clamping base (31), and the auxiliary cushion blocks (36) and the clamping member (34) are on the same radius.

9. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, wherein: An outer ring cushion block (38) is provided at the upper edge of the clamping base (31), and the outer ring cushion block (38) is matched with the outer ring (43).

10. The flexible clamping device for electron beam welding of a spoke-type casing according to claim 1, characterized in that: A pressing handle (39) is provided on the upper surface of the sub-disk (12), and the pressing handle (39) is matched with the outer ring (43).

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