CN118417803A - Zero-clearance assembly tool and zero-clearance assembly process for tail cover - Google Patents
Zero-clearance assembly tool and zero-clearance assembly process for tail cover Download PDFInfo
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- CN118417803A CN118417803A CN202410897220.2A CN202410897220A CN118417803A CN 118417803 A CN118417803 A CN 118417803A CN 202410897220 A CN202410897220 A CN 202410897220A CN 118417803 A CN118417803 A CN 118417803A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008569 process Effects 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 53
- 238000004321 preservation Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 65
- 230000000670 limiting effect Effects 0.000 claims description 45
- 238000010438 heat treatment Methods 0.000 claims description 34
- 230000008093 supporting effect Effects 0.000 claims description 24
- 238000001125 extrusion Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000035882 stress Effects 0.000 abstract description 9
- 230000000399 orthopedic effect Effects 0.000 abstract description 5
- 230000008646 thermal stress Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a zero-clearance assembly tool and an assembly process for a tail cover, and particularly relates to the technical field of aircraft assembly. According to the invention, through the arrangement of the preheating clamping assembly, on one hand, the area before welding of the tail cover can be subjected to preheating treatment, so that the temperature uniformity around welding is ensured, the thermal stress concentration is reduced, and meanwhile, the tail cover after welding is finished can be subjected to heat preservation, so that the internal stress can be further eliminated; on the other hand, the skin can be clamped all the time, welding deformation can be effectively controlled and reduced, the dimensional accuracy and the shape of the welded skin can be guaranteed, cracks of the tail cover finished product can be prevented, the yield and the quality of the welded skin are improved, and a large number of complicated orthopedic works are reduced.
Description
Technical Field
The invention relates to the technical field of aircraft assembly, in particular to a zero-clearance assembly tool and an assembly process for a tail cover.
Background
The tail cover is a streamline shaping component which is positioned at the tail of the airplane and makes the outer surface of the airplane smooth to reduce the flight resistance, and is also called as a tail fairing; the structure of the aircraft tail dimension rectification has the function of ejecting the tail jet pipe airflow to improve the thrust besides the dimension rectification function. The high-temperature zone and the tail part are easy to damage; for ease of replacement, a partially removable attachment to the fuselage section is often used. The structure of the heat-resistant aluminum alloy is generally composed of an inner skin, an outer skin and a spacer frame, wherein the outer skin is mostly made of aluminum alloy, and the inner skin is made of heat-resistant alloy or is made of heat-resistant alloy.
The machine tail cover is assembled without gaps in a welding mode, but the problem of stress deformation of the machine tail cover during welding is very remarkable, welding stress is often a direct cause of crack generation, meanwhile, the bearing capacity and the service life of a welding structure are greatly reduced, the welding deformation also causes the change of the size and the shape of a welding part, the product cannot reach the required dimensional precision, a large amount of complicated orthopedic work is often required, and even waste products are caused due to overlarge deformation, so that the processing period and the production cost are greatly increased.
The invention provides a machine tail cover gapless assembly tool and an assembly process, and aims to solve the problem that the size and the shape of a weldment are changed due to the fact that the stress deformation problem of a machine tail cover is very prominent during welding, so that a product cannot reach the required size precision.
Disclosure of Invention
The invention aims to provide a machine tail cover gapless assembly tool and an assembly process, which are used for solving the problem that the machine tail cover provided in the background art is very outstanding in stress deformation during welding, so that the size and the shape of a weldment are changed, and the product cannot reach the required dimensional accuracy.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a tail cover zero clearance assembly fixture, includes first frame and the second frame of setting in first frame top, still includes: the positioning support assembly is arranged above the first frame and used for positioning and supporting the tail cover; the pressing assembly is arranged above the positioning support assembly and comprises a pressing frame, and the pressing frame consists of a plurality of groups of pressing plates which are transversely arranged and vertically arranged and is used for pressing and limiting the positioned tail cover skin; the preheating clamping assembly is arranged on the inner side of the pressing assembly and comprises an extrusion groove formed in one side of the pressing plate, which is close to the positioning support assembly, and a heating plate is connected in the extrusion groove in a sealing sliding manner and used for preheating and clamping the pressed skin.
Preferably, the adjusting cavity is formed in the pressing plate, a first communicating groove and a second communicating groove are formed between the pressing groove and the adjusting cavity, a sliding block is connected in the first communicating groove in a sealing sliding mode, and a friction block is connected in the second communicating groove in a sealing sliding mode.
Preferably, a plurality of first elastic pieces are connected between one side, far away from the extrusion groove, of the sliding block and the adjusting chamber, a plurality of second elastic pieces are connected between one side, far away from the extrusion groove, of the friction block and the adjusting chamber, and the friction block can be used for carrying out friction limiting on the heating plate when moving in the second communication groove and being in contact with the heating plate, and thermal expansion gas is arranged in the extrusion groove.
Preferably, a first limit groove is formed in one side, far away from the positioning support assembly, of the sliding block, a limiting block is connected in the first limit groove in a sliding mode, and a plurality of third elastic pieces are connected between one side, close to the positioning support assembly, of the limiting block and the first limit groove.
Preferably, a second limiting groove is formed in one side, far away from the positioning support assembly, of the pressing plate, a pushing block is connected in the second limiting groove in a sliding mode, and the sliding block compresses the first elastic piece and can be inserted into the second limiting groove under the pushing force action of the third elastic piece when moving in the first communication groove, and the sliding block is limited.
Preferably, the positioning support assembly comprises a lower end frame limit support, the second frame is fixedly connected to the top of the lower end frame limit support, a plurality of groups of positioning supports are fixedly connected to the top of the lower end frame limit support, a plurality of framework frame supporting blocks are fixedly connected between each group of positioning supports, and a plurality of groups of positioning supports are fixedly connected to an upper end frame positioning plate.
Preferably, the lower end frame limiting support is used for limiting and supporting the lower end frame of the tail cover, the positioning support and the framework frame supporting blocks are used for supporting and limiting the framework frame and the edge beam of the tail cover, and the framework frame supporting blocks above the positioning support can cooperate with the upper end frame positioning plate to limit and support the upper end frame of the tail cover.
Preferably, the pressing frame is slidably connected to the second frame through a plurality of groups of sliding brackets, and the sliding brackets can be fixed through fixing pieces.
Preferably, the pressing frame can be matched with the shape of the tail cover, the pressing plates and the heating plates are arranged into an inner arc structure according to the shape of the tail cover skin, and welding gaps are reserved between every two adjacent pressing plates.
The invention also provides a zero-clearance assembling process of the tail cover, which comprises the following steps of;
s1, mounting a tail cover frame in a positioning support assembly for positioning support;
s2, paving a tail cover skin on the assembled tail cover frame;
S3, pressing the paved tail cover skin through a pressing component;
s4, further clamping and preheating a welding area of the tail cover through a heating plate;
S5, welding the tail cover through a welding device;
and S6, heat preservation is carried out on the welded tail cover through a heating plate.
The invention has the technical effects and advantages that:
1. According to the invention, through the arrangement of the pressing component, the skin is bent and pressed through the inner arc structure arranged on the pressing plate in the welding process of the tail cover, so that the skin is prevented from moving in the welding process, better contact between the skin and the frame is formed, the heat energy during welding can be effectively transferred, the correction and trimming work after welding can be reduced, the subsequent processing cost is reduced, the welding quality and strength are improved, the manual operation is reduced, the welding process is more automatic and standardized, and the assembly efficiency is improved.
2. According to the invention, through the arrangement of the preheating clamping assembly, on one hand, the area before welding of the tail cover can be subjected to preheating treatment, so that the temperature uniformity around welding is ensured, the thermal stress concentration is reduced, and meanwhile, the tail cover after welding is finished can be subjected to heat preservation, so that the internal stress can be further eliminated; on the other hand, the skin can be clamped all the time, the welding deformation can be effectively controlled and reduced, the size precision and the shape of the welded skin can be ensured, and the crack of the tail cover finished product can be prevented, so that the yield and the quality of the welded skin are improved, and a large number of complicated orthopedic works are reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic view of a positioning support assembly according to the present invention.
Fig. 3 is a schematic structural view of the pressing assembly of the present invention.
Fig. 4 is a schematic view of a structure of a pressing plate according to the present invention.
FIG. 5 is a schematic view of the location of a heating plate according to the present invention.
FIG. 6 is a cross-sectional view of the preheat clamping assembly of the present invention.
Fig. 7 is a sectional view showing the internal structure of the slider of the present invention.
Fig. 8 is a cross-sectional view of the internal structure of the second limiting groove of the present invention.
The reference numerals are: 1. a first frame; 11. a second frame; 2. positioning the support assembly; 21. the lower end frame limit support; 22. a positioning bracket; 23. a skeleton frame supporting block; 24. an upper end frame positioning plate; 3. a press-holding assembly; 31. a pressing and holding frame; 32. a pressing plate; 33. a sliding support; 4. preheating a clamping assembly; 41. an extrusion groove; 42. a heating plate; 43. regulating the chamber; 44. a first communication groove; 45. a second communication groove; 46. a sliding block; 47. a friction block; 48. a first elastic member; 49. a second elastic member; 410. a first limit groove; 411. a limiting block; 412. a third elastic member; 413. the second limit groove; 414. pushing the block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a machine tail cover gapless assembly tool according to an embodiment of the invention includes a first frame 1 and a second frame 11 disposed above the first frame 1.
Referring to fig. 1 and 2, still include location supporting component 2, location supporting component 2 sets up in the top of first frame 1 for carry out location support to the tail cover, including the spacing support 21 of lower end frame, second frame 11 fixed connection is at the top of the spacing support 21 of lower end frame, the top fixedly connected with multiunit locating support 22 of the spacing support 21 of lower end frame, all fixedly connected with a plurality of skeleton frame supporting shoe 23 between every locating support 22 of group, the top fixedly connected with upper end frame locating plate 24 of multiunit locating support 22, the spacing support 21 of lower end frame is used for carrying out spacing support to the tail cover lower end frame, locating support 22 and skeleton frame supporting shoe 23 are used for carrying out the support spacing to tail cover skeleton frame and strake roof beam, a plurality of skeleton frame supporting shoe 23 that are located multiunit locating support 22 top can cooperate upper end frame locating plate 24 to carry out spacing support to the tail cover upper end frame.
Referring to fig. 2-3, the machine tail cover positioning device further comprises a pressing component 3, the pressing component 3 is arranged above the positioning support component 2 and comprises a pressing frame 31, the pressing frame 31 is composed of a plurality of groups of pressing plates 32 which are transversely arranged and vertically arranged and used for pressing and limiting the positioned machine tail cover skin, the pressing frame 31 is slidably connected with the second frame 11 through a plurality of groups of sliding supports 33, the sliding supports 33 can be fixed through fixing pieces, the pressing frame 31 is matched with the machine tail cover in shape, the pressing plates 32 and the heating plates 42 are arranged to be of an inner circular arc structure according to the shape of the machine tail cover skin, and welding gaps are reserved between every two adjacent pressing plates 32.
When in actual use, the lower end frame of the tail cover is arranged in the lower end frame limiting support 21 for limiting and supporting, the upper end frame of the tail cover is arranged on the periphery side of the upper end frame positioning plate 24 for limiting, the upper end frame of the tail cover is supported by a plurality of framework frame supporting blocks 23 positioned above a plurality of groups of positioning brackets 22, then the edge beam and the framework frame of the assembled tail cover are arranged on the upper end frame and the lower end frame of the tail cover under the limiting and supporting actions of the positioning brackets 22 and the framework frame supporting blocks 23, and then the tail cover skin is paved on the edge beam and the framework frame;
When the skin needs to be welded after laying, the bolts on the sliding support 33 are screwed through the tool, the limit on the sliding support 33 is relieved, the pressing and holding frame 31 can be pulled to move downwards at the moment, each pressing and holding plate 32 on the pressing and holding frame 31 is enabled to be in contact with the skin of the tail cover, the skin is prevented from moving in the welding process through the bending and holding of the inner arc structure arranged on the pressing and holding plate 32, the sliding support 33 is limited through screwing again after the pressing and holding is completed, the pressing and holding frame 31 is prevented from moving in the welding process, and at the moment, the tail cover skin can be welded through a gap reserved between the pressing and holding plates 32 by using the welding device.
In summary, through the setting of the pressing component 3, the inner arc structure that sets up through pressing board 32 in the welding process of the tail cover bends and presses holding the covering, prevent that the covering from moving in the welding process, can make and form better contact between covering and the frame, ensure that the heat energy during welding can transfer effectively, can reduce correction and the repair work after the welding, reduce follow-up processing cost to improve welded quality and intensity, can also reduce manual operation, make the welding process more automatic and standardized, thereby improve assembly efficiency.
Example two
The problem of stress deformation of the tail cover during welding is very remarkable, welding stress is often a direct cause of crack generation, meanwhile, the bearing capacity and the service life of a welding structure are greatly reduced, the welding deformation also causes the change of the size and the shape of a welding part, the product cannot reach the required dimensional precision, a large amount of complicated orthopedic work is often required, even waste products are caused due to overlarge deformation, the processing period and the production cost are greatly increased, and the device described in the embodiment is improved.
Referring to fig. 4-8, the preheating clamping assembly 4 is arranged on the inner side of the pressing assembly 3, the preheating clamping assembly 4 comprises an extrusion groove 41 formed in one side of the pressing plate 32 close to the positioning support assembly 2, a heating plate 42 is connected in the extrusion groove 41 in a sealing sliding manner, electromagnetic heating can be adopted for heating the pressed skin for preheating clamping, an adjusting cavity 43 is formed in the pressing plate 32, a first communication groove 44 and a second communication groove 45 are formed between the extrusion groove 41 and the adjusting cavity 43, a sliding block 46 is connected in the first communication groove 44 in a sealing sliding manner, and a friction block 47 is connected in the second communication groove 45 in a sealing sliding manner.
The sliding block 46 is far away from the side of the extrusion groove 41 and is connected with a plurality of first elastic pieces 48 between the regulating chamber 43, the friction block 47 is far away from the side of the extrusion groove 41 and is connected with a plurality of second elastic pieces 49 between the regulating chamber 43, and when the friction block 47 moves in the second communication groove 45 and contacts with the heating plate 42, the heating plate 42 can be subjected to friction limiting, and the thermal expansion gas is arranged in the extrusion groove 41.
The side of the sliding block 46 far away from the positioning support assembly 2 is provided with a first limiting groove 410, a limiting block 411 is connected in a sliding manner in the first limiting groove 410, and a plurality of third elastic pieces 412 are connected between the side of the limiting block 411 near to the positioning support assembly 2 and the first limiting groove 410.
The second limiting groove 413 is formed in one side, far away from the positioning support assembly 2, of the holding plate 32, the pushing block 414 is slidably connected in the second limiting groove 413, and when the sliding block 46 compresses the first elastic piece 48 and moves in the first communication groove 44, the limiting block 411 can be inserted into the second limiting groove 413 under the thrust action of the third elastic piece 412 and limits the sliding block 46.
When in actual use, after the pressing and holding assembly 3 presses and holds the tail cover skin, the heating plate 42 is heated, the thermal expansion gas in the extrusion groove 41 expands after being heated, the expanded thermal expansion gas can push the heating plate 42 out of the extrusion groove 41, so that the heating plate 42 further extrudes the tail cover skin, and meanwhile, the heat generated by the heating plate 42 preheats the welding position of the tail cover gap, so that the thermal stress in the welding process is reduced;
In order to prevent excessive deformation of the skin caused by excessive extrusion force of the heating plate 42 on the tail cover skin, when the tail cover skin of the extruder of the heating plate 42 cannot move, thermal expansion gas in the extrusion groove 41 can push the sliding block 46 to move in the first communication groove 44 towards the direction of the adjusting chamber 43 and compress the first elastic piece 48, the extrusion force can be adjusted by adjusting the elastic coefficient of the first elastic piece 48, meanwhile, after the air in the adjusting chamber 43 is extruded by the sliding block 46, the air can push the friction block 47 to move in the second communication groove 45 towards the direction of the extrusion groove 41 and stretch the second elastic piece 49, and when the friction block 47 contacts with the heating plate 42, the friction block 47 limits the heating plate 42 by friction force to prevent the heating plate 42 from moving;
When the sliding block 46 compresses the first elastic piece 48 in the first communicating groove 44 and moves, so that the first limiting groove 410 corresponds to the second limiting groove 413 in position, the limiting block 411 can be inserted into the second limiting groove 413 under the thrust action of the third elastic piece 412 and limit the sliding block 46, the pushing block 414 can extend out of the outer side of the pressing plate 32 after the limiting block 411 is inserted into the second limiting groove 413, and when the heating plate 42 stops heating and the thermal expansion gas is recovered, the friction block 47 can still limit the heating plate 42, clamp the welded skin, reduce the deformation of the skin and ensure the dimensional accuracy and shape of the welded workpiece;
It should be noted that after the assembly is completed, the limiting block 411 may be pushed out from the second limiting groove 413 by pressing the pushing block 414, so as to release the limitation on the sliding block 46, so that the friction block 47 returns to the initial position under the rebound action of the second elastic member 49, and release the limitation on the heating plate 42.
In summary, through the setting of preheating the clamping assembly 4, on the one hand, can carry out preheating treatment to the region before the tail cover welds, guaranteed that the temperature around the welding is even, reduced the thermal stress concentration, simultaneously, also can keep warm to the tail cover after the welding is accomplished, thereby can further eliminate the internal stress, on the other hand can press from both sides the covering all the time, can effectively control and reduce welding deformation, guarantee that welded dimensional accuracy and shape, the crack appears in the protection tail cover finished product, thereby improve the yield and the finished product quality after the welding, reduce a large amount of complicated orthopedic work.
Example III
A zero clearance assembly process of a tail cover comprises the following steps of;
s1, installing a tail cover frame in a positioning support assembly 2 for positioning support;
s2, paving a tail cover skin on the assembled tail cover frame;
S3, pressing the paved tail cover skin through a pressing component 3;
s4, further clamping and preheating the welding area of the tail cover through a heating plate 42;
S5, welding the tail cover through a welding device;
And S6, heat preservation is carried out on the welded tail cover through a heating plate 42.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides a tail cover zero clearance assembly fixture, includes first frame (1) and sets up second frame (11) in first frame (1) top, its characterized in that still includes:
the positioning support assembly (2) is arranged above the first frame (1) and used for positioning and supporting the tail cover;
The pressing assembly (3), the pressing assembly (3) is arranged above the positioning support assembly (2) and comprises a pressing frame (31), and the pressing frame (31) is composed of a plurality of groups of pressing plates (32) which are transversely arranged and vertically arranged and is used for pressing and limiting the positioned tail cover skin;
preheat clamping assembly (4), preheat clamping assembly (4) setting is in the inboard of holding subassembly (3) in pressing, including seting up in pressing holding plate (32) be close to extrusion groove (41) of location supporting component (2) one side, sealed sliding connection has hot plate (42) in extrusion groove (41) for preheat the centre gripping to the skin after holding.
2. The tail cover gapless assembly fixture according to claim 1, wherein: an adjusting cavity (43) is formed in the pressing plate (32), a first communicating groove (44) and a second communicating groove (45) are formed between the pressing groove (41) and the adjusting cavity (43), a sliding block (46) is connected in the first communicating groove (44) in a sealing sliding mode, and a friction block (47) is connected in the second communicating groove (45) in a sealing sliding mode.
3. The tail cover gapless assembly fixture according to claim 2, wherein: the sliding block (46) is far away from one side of the extrusion groove (41) and a plurality of first elastic pieces (48) are connected between the adjusting chambers (43), the friction block (47) is far away from one side of the extrusion groove (41) and a plurality of second elastic pieces (49) are connected between the adjusting chambers (43), and when the friction block (47) moves in the second communication groove (45) and contacts with the heating plate (42), the heating plate (42) can be limited in a friction mode, and thermal expansion gas is arranged in the extrusion groove (41).
4. A tail cover gapless assembly fixture as recited in claim 3, wherein: the sliding block (46) is far away from one side of the positioning support assembly (2) and is provided with a first limiting groove (410), a limiting block (411) is connected in a sliding mode in the first limiting groove (410), and a plurality of third elastic pieces (412) are connected between one side, close to the positioning support assembly (2), of the limiting block (411) and the first limiting groove (410).
5. The tail cover gapless assembly fixture according to claim 4, wherein: the pressure holds board (32) and keeps away from one side of location supporting component (2) has seted up second spacing groove (413), sliding connection has pushing block (414) in second spacing groove (413), sliding block (46) compression first elastic component (48) and when moving in first intercommunication groove (44), stopper (411) can be in under the thrust effect of third elastic component (412) insert in second spacing groove (413), and to sliding block (46) are spacing.
6. The tail cover gapless assembly fixture according to claim 5, wherein: the positioning support assembly (2) comprises a lower end frame limit support (21), the second frame (11) is fixedly connected to the top of the lower end frame limit support (21), a plurality of groups of positioning supports (22) are fixedly connected to the top of the lower end frame limit support (21), a plurality of framework frame supporting blocks (23) are fixedly connected between each group of positioning supports (22), and a plurality of groups of positioning supports (22) are fixedly connected to an upper end frame positioning plate (24).
7. The tail cover gapless assembly fixture of claim 6, wherein: the lower end frame limiting support (21) is used for carrying out limiting support on the lower end frame of the tail cover, the positioning support (22) and the framework frame supporting blocks (23) are used for carrying out supporting limiting on the framework frame and the edge strip beam of the tail cover, and the framework frame supporting blocks (23) located above the positioning support (22) can cooperate with the upper end frame positioning plate (24) to carry out limiting support on the upper end frame of the tail cover.
8. A tail cover gapless assembly fixture as recited in claim 3, wherein: the pressing frame (31) is slidably connected with the second frame (11) through a plurality of groups of sliding brackets (33), and the sliding brackets (33) can be fixed through fixing pieces.
9. The tail cover gapless assembly fixture according to claim 1, wherein: the pressing and holding frame (31) is matched with the shape of the tail cover, the pressing and holding plates (32) and the heating plates (42) are arranged into an inner arc structure according to the shape of the tail cover skin, and welding gaps are reserved between every two adjacent pressing and holding plates (32).
10. A machine tail cover gapless assembly process, which adopts the machine tail cover gapless assembly tool as claimed in any one of claims 1 to 8, and is characterized by comprising the following steps of;
S1, installing a tail cover frame in a positioning support assembly (2) for positioning and supporting;
s2, paving a tail cover skin on the assembled tail cover frame;
S3, pressing the paved tail cover skin through a pressing component (3);
s4, further clamping and preheating a welding area of the tail cover through a heating plate (42);
S5, welding the tail cover through a welding device;
and S6, heat preservation is carried out on the welded tail cover through a heating plate (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410897220.2A CN118417803B (en) | 2024-07-05 | 2024-07-05 | Zero-clearance assembly tool and zero-clearance assembly process for tail cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410897220.2A CN118417803B (en) | 2024-07-05 | 2024-07-05 | Zero-clearance assembly tool and zero-clearance assembly process for tail cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118417803A true CN118417803A (en) | 2024-08-02 |
| CN118417803B CN118417803B (en) | 2024-09-17 |
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| CN202410897220.2A Active CN118417803B (en) | 2024-07-05 | 2024-07-05 | Zero-clearance assembly tool and zero-clearance assembly process for tail cover |
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| CN112719883A (en) * | 2020-12-21 | 2021-04-30 | 北京航星机器制造有限公司 | Assembly tool |
| CN216401814U (en) * | 2021-11-15 | 2022-04-29 | 贵州弘安鑫晟航空科技有限责任公司 | Unmanned aerial vehicle tail cover assembly jig |
| CN115570300A (en) * | 2022-10-17 | 2023-01-06 | 河北工业大学 | Piano-type flexible fixture capable of being preheated and cooled for surfacing repair of blades |
| US20230026060A1 (en) * | 2021-07-20 | 2023-01-26 | Nanjing University Of Aeronautics And Astronautics | Flexible Automatic Clamping Device and Method for Backside Laser Penetration Welding of T-shaped Structure |
| CN115973401A (en) * | 2021-10-15 | 2023-04-18 | 波音公司 | Joining system and method for joining stringers to fuselage skin |
| CN116021218A (en) * | 2023-03-10 | 2023-04-28 | 招商局重工（江苏）有限公司 | Ship welding positioning device |
| CN220971129U (en) * | 2023-07-04 | 2024-05-17 | 深圳信息职业技术学院 | Special fixture for laser welding |
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2024
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| US20230026060A1 (en) * | 2021-07-20 | 2023-01-26 | Nanjing University Of Aeronautics And Astronautics | Flexible Automatic Clamping Device and Method for Backside Laser Penetration Welding of T-shaped Structure |
| CN115973401A (en) * | 2021-10-15 | 2023-04-18 | 波音公司 | Joining system and method for joining stringers to fuselage skin |
| CN216401814U (en) * | 2021-11-15 | 2022-04-29 | 贵州弘安鑫晟航空科技有限责任公司 | Unmanned aerial vehicle tail cover assembly jig |
| CN115570300A (en) * | 2022-10-17 | 2023-01-06 | 河北工业大学 | Piano-type flexible fixture capable of being preheated and cooled for surfacing repair of blades |
| CN116021218A (en) * | 2023-03-10 | 2023-04-28 | 招商局重工（江苏）有限公司 | Ship welding positioning device |
| CN220971129U (en) * | 2023-07-04 | 2024-05-17 | 深圳信息职业技术学院 | Special fixture for laser welding |
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| CN118417803B (en) | 2024-09-17 |
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