Large curved skin bonding fixture

Abstract

The present invention discloses a large-scale arc-shaped skin gluing fixture, comprising a gluing mold body, a marking tool assembly, a positioning tool assembly, an inspection template assembly, a hole positioning assembly and a honeycomb positioning assembly; the gluing fixture of the present invention integrates multiple functions such as skin marking, part positioning, positioning tool assembly verification, gluing, gluing clamping, and hole processing line forming; first, the positioning tool assembly is verified by the inspection template assembly to ensure the installation accuracy of the positioning tool assembly; secondly, the inner and outer skins are positioned by the positioning tool assembly, and the positioning is accurate and high in precision; thirdly, the honeycomb is composed of two split honeycombs, and is positioned by the honeycomb positioning assembly. The split honeycomb can reduce the deformation probability of the honeycomb, and the gluing process can reduce the position error when the skin and the honeycomb are glued through one verification and two positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace processing equipment, and in particular to a large arc-shaped skin gluing fixture. Background Art

[0002] Composite materials are currently being widely used in a variety of fields, including aviation, aerospace, and automotive, due to their excellent properties, including high specific strength, high specific modulus, designability, and fatigue resistance. Composite materials typically consist of an inner skin, an outer skin, and a honeycomb panel. The honeycomb panel is sandwiched between the inner and outer skins, and the three are bonded together using adhesive. The bonding process requires a bonding tool.

[0003] The existing bonding tooling has simple functions and only has the function of supporting and clamping the inner and outer skins and honeycombs. The positioning of the bonding process relies on manual experience. If the size of the inner and outer skins is too large after forming, they can only be cut off after manual comparison with standard parts (standard inner and outer skins) and marking. There are errors in the above processes during the processing. The direct result is that the part precision does not meet the standards and secondary processing is required. In serious cases, the parts are scrapped. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a large-scale arc-shaped skin gluing fixture, which integrates multiple functions such as skin marking, part positioning, positioning tool assembly verification, gluing, gluing clamping, and hole processing line forming; first, the positioning tool assembly is verified by checking the template assembly to ensure the installation accuracy of the positioning tool assembly; secondly, the inner and outer skins are positioned by the positioning tool assembly, and the positioning is accurate and high-precision; thirdly, the honeycomb is composed of two split honeycombs, and is positioned by the honeycomb positioning assembly. The split honeycomb can reduce the deformation probability of the honeycomb, and the gluing process can reduce the position error when the skin and the honeycomb are glued through one verification and two positioning; wherein the honeycomb positioning assembly, in addition to the positioning function, also presses the skin during the gluing and curing, organically integrates the honeycomb positioning and clamping fixation, and simplifies the overall structure of the fixture.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] Large curved skin bonding fixture, including bonding die body, marking tooling assembly, positioning tooling assembly, inspection template assembly, hole positioning assembly and honeycomb positioning assembly;

[0007] The bonding mold body is an outwardly convex semi-cylindrical structure, and the arc surface of the bonding mold body is adapted to the part surface;

[0008] The marking tool assembly is used to cooperate with the bonding mold body to mark the inner skin and outer skin that are too large in size after molding; the marking tool assembly is detachably connected to the bonding mold body;

[0009] The positioning tool assembly is used to position the inner skin and the outer skin during bonding; the positioning tool assembly is detachably connected to the bonding mold body;

[0010] The inspection template assembly is used to inspect whether the positioning assembly, the positioning fixture assembly and the bonding mold body are assembled in place;

[0011] The honeycomb positioning assembly is used to position the honeycombs when multiple honeycombs are laid on the inner skin, and to clamp the parts during bonding and curing.

[0012] The hole positioning assembly is used to carve the hole processing line while the parts are being glued and cured;

[0013] The marking tool and the positioning tool are installed at the same position of the bonding mold body, the marking tool and the positioning tool are used in steps, and the inspection template assembly and the honeycomb positioning assembly are used in steps.

[0014] Furthermore, the positioning tooling assembly includes a first side positioning block, a second side positioning block, a first bottom positioning block, and a second bottom positioning block. The first side positioning block, the second side positioning block, the first bottom positioning block, and the second bottom positioning block are detachably connected to the bonding mold body to form a closed frame structure whose inner side is adapted to the edge of the part.

[0015] Furthermore, the scribing tool assembly includes a side scribing block, a first bottom scribing block, a second bottom scribing block and a scribing needle, wherein the side scribing block, the first bottom scribing block and the second bottom scribing block are detachably connected to the bonding mold body, and the first side positioning block, the side scribing block, the first bottom scribing block and the second bottom scribing block form a scribing frame whose inner side is adapted to the edge of the part;

[0016] The marking needle comprises a rectangular handle and a marking head fixedly connected to the rectangular handle.

[0017] Furthermore, both ends of the first bottom marking block and the second bottom marking block are respectively clamped with the first side positioning block and the side marking block, and a gap is provided between the bottom surface of the first bottom marking block and the bottom surface of the second bottom marking block and the surface of the bonding mold body.

[0018] Furthermore, it also includes an assembly positioning and marking block, the two ends of which are respectively clamped with the first side positioning block and the side marking block, and the assembly positioning and marking are detachably connected to the bonding mold body.

[0019] Furthermore, the inspection template assembly includes an inspection plate, and slide grooves are respectively provided at both ends of the inspection plate. The spacing between the two slide grooves is the width of the part, and the two ends of the inspection plate are respectively slidably engaged with the first side positioning block and the second side positioning block through the slide grooves.

[0020] Further, the cellular positioning assembly includes a first cellular locator, a second cellular locator and four cellular positioning members;

[0021] The honeycomb positioning component includes a supporting card plate, a mounting seat and two third honeycomb positioners, the two ends of the supporting card plate are detachably connected to the bonding mold body through the mounting seat, and the two third honeycomb positioners are connected to the supporting card plate; the third honeycomb positioner includes a concave seat, a first positioning strip and a first fixing bolt, the concave seat is fixedly connected to the supporting card plate, the first positioning strip is arranged in the concave seat, and the first positioning strip can slide vertically relative to the concave seat, the first fixing bolt is threadedly connected to the concave seat, and the end of the first fixing bolt contacts the surface of the first positioning strip;

[0022] The first honeycomb positioner includes a first base, a second positioning bar, and a second fixing bolt. The first base is detachably connected to the bonding mold body. The second positioning bar is a rectangular parallelepiped structure. The second positioning bar is slidably engaged with the first base. The second fixing bolt is threadedly connected to the first base, and an end of the second fixing bolt contacts the surface of the second positioning bar.

[0023] The second honeycomb locator includes a second base, a third positioning bar and a third fixing bolt. The second base is detachably connected to the bonding mold body. The third positioning bar is an L-shaped structure. The third positioning bar slides with the second base. The third fixing bolt is threadedly connected to the second base, and the end of the third fixing bolt contacts the surface of the third positioning bar.

[0024] Furthermore, the hole positioning assembly includes a hole cutter, and the hole cutter is connected to the supporting cross plate.

[0025] Furthermore, the bonding mold body includes a support, an arc-shaped support plate, a profile panel and a rib plate. The arc-shaped support plate is arranged on the support, the profile panel is fixed on the surface of the arc-shaped support plate, the shape of the profile panel is adapted to the shape of the part, and the rib plate is arranged between the profile support plate and the base.

[0026] The beneficial effects of the present invention are:

[0027] The gluing fixture of the present invention integrates multiple functions such as skin marking, part positioning, positioning tool assembly verification, gluing, gluing clamping, and hole processing line forming. First, the positioning tool assembly is verified by checking the template assembly to ensure the installation accuracy of the positioning tool assembly. Secondly, the inner and outer skins are positioned by the positioning tool assembly, and the positioning is accurate and high-precision. Thirdly, the honeycomb is composed of two split honeycombs and is positioned by the honeycomb positioning assembly. The split honeycomb can reduce the deformation probability of the honeycomb. The gluing process can reduce the position error when the skin and the honeycomb are glued together through one verification and two positioning. In addition to the positioning function, the honeycomb positioning assembly also presses the skin during gluing and curing, organically integrating the honeycomb positioning and clamping fixation, thereby simplifying the overall structure of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of a large arc-shaped skin bonding fixture in an embodiment of the present invention;

[0029] Figure 2 A top view of a large arc-shaped skin bonding fixture according to an embodiment of the present invention;

[0030] Figure 3 It is a three-dimensional diagram of the bonding mold body;

[0031] Figure 4 It is a structural diagram of the positioning tool assembly when it is assembled on the bonding mold body;

[0032] Figure 5 It is a structural diagram of the marking tool assembly when it is assembled on the bonding mold body;

[0033] Figure 6 It is a structural schematic diagram of a honeycomb positioning component;

[0034] Figure 7 A top view of a honeycomb positioning member;

[0035] Figure 8 for Figure 6 Middle BB section view;

[0036] Figure 9 It is a structural diagram of the first positioning honeycomb;

[0037] Figure 10 is a schematic structural diagram of a second positioning honeycomb;

[0038] In the figure, 1. Bonding mold body; 2. Marking tool assembly; 3. Positioning tool assembly; 4. Inspection template assembly; 5. Hole positioning assembly; 6. Honeycomb positioning assembly; 7. First side positioning block; 8. Second side positioning block; 9. First bottom positioning block; 10. Second bottom positioning block; 11. Side marking block; 12. First bottom marking block; 13. Second bottom marking block; 14. Marking needle; 15. Assembly positioning marking block; 16. Inspection plate; 17. First honeycomb locator ; 18. Second honeycomb positioner; 19. Honeycomb positioning member; 20. Support card; 21. Mounting seat; 22. Third honeycomb positioner; 23. Concave seat; 24. First positioning strip; 25. First fixing bolt; 26. First base; 27. Second positioning strip; 28. Second fixing bolt; 29. ​​Second base; 30. Third positioning strip; 31. Third fixing bolt; 32. Hole cutter; 33. Support; 34. Arc support plate; 35. Profile panel; 36. Rib plate. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0040] See Figures 1-10 , the present invention provides a technical solution:

[0041] Example:

[0042] like Figures 1-10 As shown, a large arc-shaped skin bonding fixture includes a bonding mold body 1, a marking tool assembly 2, a positioning tool assembly 3, a test sample assembly 4, a hole positioning assembly 5 and a honeycomb positioning assembly 6;

[0043] The bonding mold body 1 is an outwardly convex semi-cylindrical structure, and the curved surface of the bonding mold body 1 is adapted to the part profile; the bonding mold body 1 includes a support 33, a curved support plate 34, a profile panel 35 and a rib 36, the curved support plate 34 is arranged on the support 33, the profile panel 35 is fixed on the surface of the curved support plate 34, the shape of the profile panel 35 is adapted to the part shape, and the rib 36 is arranged between the profile support plate and the base.

[0044] The marking tool assembly 2 is used to cooperate with the bonding mold body 1 to mark the inner skin and outer skin that are too large after molding; the marking tool assembly 2 is detachably connected to the bonding mold body 1;

[0045] The positioning tool assembly 3 is used to position the inner skin and the outer skin during bonding; the positioning tool assembly 3 is detachably connected to the bonding mold body 1;

[0046] The inspection template assembly 4 is used to inspect whether the positioning assembly positioning fixture assembly 3 and the bonding mold body 1 are assembled in place;

[0047] The honeycomb positioning assembly 6 is used for positioning the honeycombs when multiple honeycombs are laid on the inner skin and for clamping the parts during bonding and curing;

[0048] The hole positioning assembly 5 is used to carve the hole processing line while the parts are being glued and cured;

[0049] The marking tool and the positioning tool are installed at the same position of the bonding mold body 1. The marking tool and the positioning tool are used in steps, and the inspection template component 4 and the honeycomb positioning component 6 are used in steps.

[0050] Among them, it should be noted that Figure 1 and Figure 2 The figure is a schematic diagram of the overall structure. Since the components are used in a certain order, some components interfere with each other in the figure, and the interfering parts are not shown.

[0051] Working principle: (1) After the inner skin and outer skin are formed, if the size is too large, they will be marked by the marking tool assembly 2, and the excess part will be cut off after marking. This process is the fine adjustment of the size of the inner skin and outer skin; if the size meets the standard, this step is skipped.

[0052] (2) If step (1) is performed, after removing the marking tool assembly 2, the positioning tool assembly 3 is installed on the bonding mold body 1.

[0053] (3) Verify the positioning fixture assembly 3 by using the inspection template assembly 4 to determine whether the positioning fixture assembly 3 is properly assembled. If it is not properly assembled, make adjustments in a timely manner. The inspection template assembly 4 is removed after use.

[0054] (4) After the positioning fixture assembly 3 is verified, the inner skin is assembled onto the bonding mold body 1, and the inner skin is positioned by the positioning fixture assembly 3;

[0055] (5) After the inner skin is in place, the honeycomb is assembled onto the inner skin; the honeycomb is a split honeycomb with two honeycombs. The independent honeycombs are positioned by the honeycomb positioning assembly 6. After positioning is completed, the honeycomb positioning assembly 6 is removed.

[0056] (6) After the honeycomb is assembled, the outer skin is assembled on the honeycomb so that the honeycomb is located between the outer skin and the inner skin. At this time, the honeycomb positioning component 6 is reinstalled. The honeycomb positioning component 6 presses the inner and outer skins and the honeycomb onto the bonding mold body 1; then the glue is injected to bond and solidify the inner skin, honeycomb and outer skin.

[0057] (7) During the bonding and curing process of the inner skin, honeycomb and outer skin, the holes to be formed in the parts (the parts refer to the inner skin, honeycomb and outer skin as a whole after curing) are marked by the hole positioning component 5 to form hole processing lines to facilitate the subsequent hole processing.

[0058] The gluing fixture of the present invention integrates multiple functions such as skin marking, part positioning, positioning tool assembly 3 verification, gluing, gluing clamping, and hole processing line forming. First, the positioning tool assembly 3 is verified by the inspection template assembly 4 to ensure the installation accuracy of the positioning tool assembly 3. Secondly, the inner and outer skins are positioned by the positioning tool assembly 3, and the positioning is accurate and high-precision. Thirdly, the honeycomb is composed of two split honeycombs and is positioned by the honeycomb positioning assembly 6. The split honeycomb can reduce the deformation probability of the honeycomb. The gluing process can reduce the position error of the skin and the honeycomb during gluing through one verification and two positioning. Among them, the honeycomb positioning assembly 6, in addition to the positioning function, also presses the skin during gluing and curing, organically integrating the honeycomb positioning and clamping fixation, and simplifying the overall structure of the fixture.

[0059] Furthermore, if Figure 1 、 Figure 2 and Figure 3 As shown, the positioning tooling assembly 3 includes a first side positioning block 7, a second side positioning block 8, a first bottom positioning block 9, and a second bottom positioning block 10. The side positioning block, the second side positioning block 8, the first bottom positioning block 9, and the second bottom positioning block 10 are detachably connected to the bonding mold body 1 to form a closed frame structure whose inner side is adapted to the edge of the part.

[0060] Among them, the principle of the positioning tooling assembly 3 is explained by taking the inner skin positioning as an example: the inner skin is assembled into the closed frame, and the four sides of the inner skin are respectively in contact with the inner sides of the first side positioning block 7, the second side positioning block 8, the first bottom positioning block 9, and the second bottom positioning block 10.

[0061] Furthermore, if Figure 1-Figure 4 As shown, the scribing tool assembly 2 includes a side scribing block 11, a first bottom scribing block 12, a second bottom scribing block 13 and a scribing needle 14. The side scribing block 11, the first bottom scribing block 12, and the second bottom scribing block 13 are detachably connected to the bonding mold body 1. The first side positioning block 7, the side scribing block 11, the first bottom scribing block 12, and the second bottom scribing block 13 form a scribing frame whose inner side is adapted to the edge of the part.

[0062] The marking needle 14 includes a rectangular handle and a marking head fixedly connected to the rectangular handle.

[0063] It should be noted that the side marking block 11 , the first bottom marking block 12 , and the second bottom marking block 13 are connected to the bonding mold body 1 through pins.

[0064] The dimensional fine-tuning process (illustrated using the inner skin as an example) is as follows: the inner skin is placed on the bonding mold body 1, with one side (the long side) of the inner skin abutting the inner side of the first side positioning block 7. This side serves as the marking reference. The remaining three sides of the inner skin are secured using the side marking blocks 11, the first bottom marking block 12, and the second bottom marking block 13. After securing, a marking needle 14 is used to mark the inner sides of the side marking blocks 11, the first bottom marking block 12, and the second bottom marking block 13. After marking is completed, the excess area is removed.

[0065] Furthermore, if Figure 4 As shown, the two ends of the first bottom marking block 12 and the two ends of the second bottom marking block 13 are respectively clamped with the first side positioning block 7 and the side marking block 11, and a gap is provided between the bottom surface of the first bottom marking block 12 and the bottom surface of the second bottom marking block 13 and the surface of the bonding mold body 1.

[0066] The gap that is provided with is used for when the skin is too long, and the two ends of the skin are by stretching into the gap, and the skin is provided with margin of making way. Now, the skin side is fixed by the side marking block 11 and gets final product.

[0067] Furthermore, if Figure 4 As shown, it also includes an assembly positioning marking block 15, the two ends of which are respectively engaged with the first side positioning block 7 and the side marking block 11, and the assembly positioning marking is detachably connected to the bonding mold body 1.

[0068] The assembly positioning marking block 15 is used to position the side marking block 11. When the assembly positioning marking block 15 slides, if the sliding process is smooth and there is no jamming, the side marking block 11 is assembled in place. If there is jamming and it cannot slide, the position of the side marking block 11 needs to be adjusted.

[0069] The provided assembly positioning marking block 15 facilitates the positioning of the side marking block 11 and can verify the side marking block 11 .

[0070] Furthermore, the inspection template assembly 4 includes an inspection plate 16, and both ends of the inspection plate 16 are respectively provided with a slide groove, the spacing between the two slide grooves is the width of the part, and the two ends of the inspection plate 16 are respectively slidably matched with the first side positioning block 7 and the second side positioning block 8 through the slide groove.

[0071] During use: After the first and second side positioning blocks 7 and 8 are in place, secure the ends of the inspection plate 16 to the first and second side positioning blocks 7 and 8, and slide the inspection plate 16. If the inspection plate 16 slides smoothly from one end of the first side positioning block 7 to the other, the positioning blocks are positioned correctly. If the sliding does not occur, adjust the side positioning blocks. Remove the inspection plate 16 after use.

[0072] After the side positioning blocks are positioned accurately, the first bottom positioning block 9 and the second bottom positioning block 10 are fixed between the first side positioning block 7 and the second side positioning block 8 respectively, taking the two side positioning blocks as the installation reference.

[0073] Furthermore, if Figure 1 、 Figure 2 and Figures 6-10 As shown, the honeycomb positioning assembly 6 includes a first honeycomb locator 17, a second honeycomb locator 18 and four honeycomb positioning members 19;

[0074] The honeycomb positioning component 19 includes a supporting card plate 20, a mounting seat 21 and two third honeycomb positioners 22. The two ends of the supporting card plate 20 are detachably connected to the bonding mold body 1 through the mounting seat 21, and the two third honeycomb positioners 22 are connected to the supporting card plate 20; wherein, the second honeycomb positioning component 19 is the same as the honeycomb positioning component 19.

[0075] The third honeycomb positioner 22 includes a concave seat 23, a first positioning bar 24, and a first fixing bolt 25. The concave seat 23 is fixedly connected to the support card plate 20. The first positioning bar 24 is disposed in the concave seat 23 and can slide vertically relative to the concave seat 23. The first fixing bolt 25 is threadedly connected to the concave seat 23, and the end of the first fixing bolt 25 contacts the surface of the first positioning bar 24.

[0076] The first honeycomb positioner 17 includes a first base 26, a second positioning bar 27, and a second fixing bolt 28. The first base 26 is detachably connected to the bonding mold body 1. The second positioning bar 27 is a rectangular parallelepiped structure. The second positioning bar 27 is slidably matched with the first base 26. The second fixing bolt 28 is threadedly connected to the first base 26, and the end of the second fixing bolt 28 is in surface contact with the second positioning bar 27.

[0077] The second honeycomb positioner 18 includes a second base 29, a third positioning bar 30 and a third fixing bolt 31. The second base 29 is detachably connected to the bonding mold body 1. The third positioning bar 30 is an L-shaped structure. The third positioning bar 30 slides with the second base 29. The third fixing bolt 31 is threadedly connected to the second base 29, and the end of the third fixing bolt 31 contacts the surface of the third positioning bar 30.

[0078] 1. The support plate 20 is positioned horizontally (here, horizontal refers to a direction perpendicular to the first side positioning block 7). 2. As previously mentioned, the honeycomb is a split honeycomb, with two of them. The eight third honeycomb locators 22 are divided into two groups. The third honeycomb locators 22 in each group form arc-shaped positioning edges that position the honeycomb sides. The first honeycomb locator 17 and one of the third honeycomb locators 22 position the side of one honeycomb, while the second honeycomb locator 18 and another of the third honeycomb locators 22 position the side of the other honeycomb.

[0079] Once the honeycomb is positioned, remove the support plates and retract the positioning strips to prevent them from protruding from the support plates. The outer skin is then positioned outside the honeycomb and the support plates reinstalled. Glue is injected between the honeycomb and the inner and outer skins, and then cured to complete the bonding. During bonding, the support plates press against the outer skin, providing preload for the honeycomb and inner and outer skins to cure.

[0080] Furthermore, if Figure 8 As shown, the hole positioning assembly 5 includes a hole cutter 32, which is connected to the supporting horizontal plate. The hole cutter includes a round hole cutter and a square hole cutter. The specific selection of the hole cutter is determined by the actual hole shape to be processed.

[0081] As mentioned above, while the adhesive is curing, a hole processing line is formed on the surface of the outer skin by a hole cutter. After the inner and outer skins and the honeycomb are cured, the holes on the parts can be processed based on the hole processing line.

[0082] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. Large arc-shaped skin bonding fixture, characterized by: It includes bonding mold body, marking tool assembly, positioning tool assembly, inspection sample assembly, hole positioning assembly and honeycomb positioning assembly; The bonding mold body is an outwardly convex semi-cylindrical structure, and the arc surface of the bonding mold body is adapted to the part surface; The marking tool assembly is used to cooperate with the bonding mold body to mark the inner skin and outer skin that are too large in size after molding; the marking tool assembly is detachably connected to the bonding mold body; The positioning tool assembly is used to position the inner skin and the outer skin during bonding; the positioning tool assembly is detachably connected to the bonding mold body; The inspection template assembly is used to inspect whether the positioning assembly, the positioning fixture assembly and the bonding mold body are assembled in place; The honeycomb positioning assembly is used to position the honeycombs when multiple honeycombs are laid on the inner skin, and to clamp the parts during bonding and curing. The hole positioning assembly is used to carve the hole processing line while the parts are being glued and cured; The marking tool and the positioning tool are installed at the same position of the bonding mold body, the marking tool and the positioning tool are used step by step, and the inspection sample assembly and the honeycomb positioning assembly are used step by step; The positioning tool assembly includes a first side positioning block, a second side positioning block, a first bottom positioning block, and a second bottom positioning block, and the first side positioning block, the second side positioning block, the first bottom positioning block, and the second bottom positioning block are detachably connected to the bonding mold body to form a closed frame structure whose inner side is adapted to the edge of the part; The scribing tool assembly includes a side scribing block, a first bottom scribing block, a second bottom scribing block and a scribing needle. The side scribing block, the first bottom scribing block and the second bottom scribing block are detachably connected to the bonding mold body. The first side positioning block, the side scribing block, the first bottom scribing block and the second bottom scribing block form a scribing frame whose inner side is adapted to the edge of the part. The marking needle comprises a rectangular handle and a marking head fixedly connected to the rectangular handle.

2. The large arc-shaped skin bonding fixture according to claim 1, characterized in that: The two ends of the first bottom marking block and the two ends of the second bottom marking block are respectively clamped with the first side positioning block and the side marking block, and a gap is provided between the bottom surface of the first bottom marking block and the bottom surface of the second bottom marking block and the surface of the bonding mold body.

3. The large arc-shaped skin bonding fixture according to claim 1, characterized in that: It also includes an assembly positioning and marking block, the two ends of which are respectively clamped with the first side positioning block and the side marking block, and the assembly positioning and marking are detachably connected to the bonding mold body.

4. The large arc-shaped skin bonding fixture according to claim 1, characterized in that: The inspection template assembly includes an inspection plate, and both ends of the inspection plate are respectively provided with a slide groove, the spacing between the two slide grooves is the width of the part, and the two ends of the inspection plate are respectively slidably matched with the first side positioning block and the second side positioning block through the slide groove.

5. The large arc-shaped skin bonding fixture according to claim 1, characterized in that: The cellular positioning assembly includes a first cellular locator, a second cellular locator and four cellular positioning members; The honeycomb positioning component includes a supporting card plate, a mounting seat and two third honeycomb positioners, the two ends of the supporting card plate are detachably connected to the bonding mold body through the mounting seat, and the two third honeycomb positioners are connected to the supporting card plate; the third honeycomb positioner includes a concave seat, a first positioning strip and a first fixing bolt, the concave seat is fixedly connected to the supporting card plate, the first positioning strip is arranged in the concave seat, and the first positioning strip can slide vertically relative to the concave seat, the first fixing bolt is threadedly connected to the concave seat, and the end of the first fixing bolt contacts the surface of the first positioning strip; The first honeycomb positioner includes a first base, a second positioning bar, and a second fixing bolt. The first base is detachably connected to the bonding mold body. The second positioning bar is a rectangular parallelepiped structure. The second positioning bar is slidably engaged with the first base. The second fixing bolt is threadedly connected to the first base, and an end of the second fixing bolt contacts the surface of the second positioning bar. The second honeycomb locator includes a second base, a third positioning strip and a third fixing bolt. The second base is detachably connected to the bonding mold body. The third positioning strip is an L-shaped structure. The third positioning strip slides with the second base. The third fixing bolt is threadedly connected to the second base, and the end of the third fixing bolt contacts the surface of the third positioning strip.

6. The large arc-shaped skin bonding fixture according to claim 5, characterized in that: The hole positioning assembly includes a hole cutter, and the hole cutter is connected to the supporting card plate.

7. The large arc-shaped skin bonding fixture according to claim 1, characterized in that: The bonding mold body includes a support, an arc-shaped support plate, a profile panel and a rib plate. The arc-shaped support plate is arranged on the support, the profile panel is fixed on the surface of the arc-shaped support plate, the shape of the profile panel is adapted to the shape of the part, and the rib plate is arranged between the arc-shaped support plate and the base.

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