Positioning tool for secondary bonding of an aircraft inlet ring

Abstract

The utility model discloses a positioning tool for aircraft air inlet channel ring muscle secondary cementation relates to tooling technical field, including fixed base, the fixed base upside has and the positioning portion of air inlet channel inner edge cooperation, is connected with a plurality of sets of support unit on the fixed base, and the support unit includes the first support block and the second support block before and after the positioning portion, and the first support block and the second support block upside are fixedly connected with support bracket respectively, and the detachable connection of corresponding two support brackets has the positioning clamping plate, and the avoidance slot is opened on the positioning clamping plate. The utility model has the beneficial effect that: the fixing and positioning of corresponding positioning clamping plate are realized through support bracket, the position of ring muscle is restricted through positioning clamping plate, and the auxiliary positioning when ring muscle cementation is realized.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a positioning tooling for secondary bonding of the ring reinforcement of an aircraft air intake. Background Technology

[0002] To ensure product strength, intake duct components typically employ a secondary bonding process to bond the pre-formed cylinder and ribs into a single unit. However, during the molding process of the composite material intake duct cylinder, stress concentration can lead to warping deformation. Furthermore, the high curvature design of the ribs themselves can also cause the aforementioned problems. Ensuring the positional accuracy of the rib bonding has become a major challenge in current intake duct rib bonding technology. Existing technologies lack specialized positioning fixtures to assist in intake duct rib bonding, thus failing to guarantee the positional accuracy of the rib bonding. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A positioning fixture for secondary bonding of the ring ribs of an aircraft air intake includes a fixed base. The fixed base has a positioning part on its upper side that mates with the inner edge of the air intake. Several sets of support units are connected to the fixed base. Each support unit includes a first support block and a second support block located in front of and behind the positioning part. Support brackets are fixedly connected to the upper sides of the first support block and the second support block respectively. A positioning plate is detachably connected between two corresponding support brackets. The positioning plate has a clearance groove.

[0005] The inner edge of the air intake can fit perfectly against the outer periphery of the positioning part. The position of the clearance groove is set according to the position of the foam reinforcement on the outside of the air intake, so that when the positioning plate is connected to the support bracket from top to bottom, the clearance groove is just locked on the foam reinforcement on the outside of the air intake. During bonding, the positioning plate is used to accurately position the bonding position of the reinforcement strip, and the reinforcement strip is bonded along the position specified by the positioning plate.

[0006] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of the aircraft air intake, the positioning plate has a snap-fit ​​groove on one of its front and rear sides facing downwards, and the support bracket is threaded with a snap-fit ​​bolt, so that the positioning plate can be snapped onto the snap-fit ​​bolt through the snap-fit ​​groove.

[0007] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of the aircraft air intake, the support bracket above the snap-fit ​​bolt has a first positioning hole, and the positioning plate above the snap-fit ​​groove has a second positioning hole corresponding to the first positioning hole.

[0008] As a preferred embodiment of the positioning fixture for secondary bonding of the ring ribs of the aircraft air intake as described in this utility model, wherein: the fixed base is fixedly connected to a top plate on one side in the left-right direction, and the end of the air intake can be attached to the top plate.

[0009] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of an aircraft air intake as described in this utility model, wherein: at least one first auxiliary drilling unit is connected to the top plate, the first auxiliary drilling unit includes a first auxiliary drilling plate, the first auxiliary drilling plate includes a first connecting part, a downwardly extending first auxiliary drilling part is fixed on the lower side of the first connecting part, a first screw hole is opened on the first connecting part, a second screw hole corresponding to the first screw hole is opened on the top plate, a first connecting hole is opened on the first auxiliary drilling part, and a first auxiliary drilling sleeve is connected to the first auxiliary drilling part through the first connecting hole.

[0010] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of the aircraft air intake duct according to the present invention, wherein: at least one second auxiliary drilling unit is connected to the upper side of the fixed base, the second auxiliary drilling unit is a second auxiliary drilling plate, the second auxiliary drilling plate includes a first connecting part, the end of the first connecting part facing the positioning surface is fixed with the second auxiliary drilling part, the second connecting part has a third screw hole, the top plate has a fourth screw hole corresponding to the third screw hole, the second auxiliary drilling part has a second connecting hole, and the second auxiliary drilling part is connected to a second auxiliary drilling sleeve through the second connecting hole.

[0011] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of the aircraft air intake as described in this utility model, wherein: a first insertion hole is opened on the first connecting part on both sides of the first screw hole, and a plurality of first connecting holes corresponding one-to-one with the first insertion hole are opened on the top plate on both sides of the second screw hole, a first positioning pin is connected to the top plate through the first connecting hole, the first positioning pin extends out of the top plate, and the first connecting part is inserted into the corresponding first positioning pin through the first insertion hole.

[0012] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of the aircraft air intake, as described in this utility model, the second connecting part on both sides of the second screw hole is provided with a second insertion hole, and the fixed base on both sides of the second screw hole is provided with a plurality of second connecting holes corresponding to the second insertion holes. The fixed base is connected to a second positioning pin through the second connecting hole, the second positioning pin extends upward outside the fixed base, and the second connecting part is inserted into the corresponding second positioning pin through the second insertion hole.

[0013] As a preferred embodiment of the positioning fixture for secondary bonding of the ring reinforcement of the aircraft air intake, the fixed base has several lifting lugs arranged on its outer periphery.

[0014] The beneficial effects of this utility model are as follows: the support bracket realizes the fixing and positioning of the corresponding positioning plate, the positioning plate constrains the position of the ring rib, and realizes the auxiliary positioning during the gluing of the ring rib; the auxiliary drilling unit is set to locate the drilling position of the air intake pipe, which facilitates the drilling operation of the air intake pipe. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is the front view of the positioning fixture used for secondary bonding of the ring reinforcement in an aircraft air intake.

[0016] Figure 2 A three-dimensional structure for positioning fixtures used for secondary bonding of ring ribs in aircraft air intakes. Figure 1 .

[0017] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0018] Figure 4 for Figure 2 A magnified view of a section at point B in the middle.

[0019] Figure 5 for Figure 2 A magnified view of a section at point B in the middle.

[0020] Figure 6 A three-dimensional structure for positioning fixtures used for secondary bonding of ring ribs in aircraft air intakes. Figure 2 .

[0021] Figure 7 This is a three-dimensional structural diagram of the positioning plate in this utility model.

[0022] The diagram is labeled as follows: 1 Top plate, 101 Second screw hole, 102 First connecting hole, 2 Support unit, 3 Fixed base, 301 Positioning part, 4 Second auxiliary drilling unit, 401 First auxiliary drilling bolt, 402 Auxiliary drilling sleeve, 403 Second auxiliary drilling plate, 403-1 First auxiliary drilling part, 403-2 First connecting part, 5 First auxiliary drilling unit, 501 First auxiliary drilling plate, 501-1 Second connecting part, 501-2 Second auxiliary drilling part, 502 Second auxiliary drilling sleeve, 503 Second auxiliary drilling bolt, 504 First positioning pin, 6 Positioning plate, 601 Second positioning hole, 602 Clearance groove, 603 Snap-fit ​​groove, 7 Support unit, 701 Second support block, 702 Support bracket, 703 First support block, 704 Snap-fit ​​bolt, 705 Plate positioning pin, 706 Washer, 8 Lifting lug. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0026] Example 1: Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5This is the first embodiment of the present invention. This embodiment provides a positioning fixture for secondary bonding of the ring rib of an aircraft air intake. It includes a fixed base 3. The fixed base 3 has several lifting lugs 8 arranged on its outer periphery for easy lifting. The fixed base 3 has a positioning part 301 on its upper side that cooperates with the inner edge of the air intake. Several sets of support units 72 are connected to the fixed base 3. The support unit 72 includes a first support block 703 and a second support block 701 in front of and behind the positioning part 301. The first support block 703 and the second support block 701 are both fixed on the upper side of the fixed base 3. Support brackets 702 are fixedly connected to the upper side of the first support block 703 and the second support block 701 respectively. A positioning plate 6 is detachably connected between the two corresponding support brackets 702. The positioning plate 6 has a clearance groove 602. A top plate 1 is fixedly connected to one side of the fixed base 3 in the left-right direction. The end of the air intake can fit against the top plate 1.

[0027] The inner edge of the air intake can fit perfectly against the outer periphery of the positioning part 301. The right side of the air intake fits against the left side of the top plate 1. The position of the clearance groove 602 is set according to the position of the foam reinforcement on the outside of the air intake, so that when the positioning plate 6 is connected to the support bracket 702 from top to bottom, the clearance groove 602 is just locked on the foam reinforcement on the outside of the air intake. During bonding, the bonding position of the reinforcement is accurately positioned by the positioning plate 6, and the reinforcement is bonded along the position specified by the positioning plate 6.

[0028] Specifically, the positioning plate 6 has a snap-fit ​​groove 603 on each of its front and rear sides facing downwards. The support bracket 702 is threaded with a snap-fit ​​bolt 704. The positioning plate 6 can be snapped onto the snap-fit ​​bolt 704 through the snap-fit ​​groove 603. The support bracket 702 above the snap-fit ​​bolt 704 has a first positioning hole. The positioning plate 6 above the snap-fit ​​groove 603 has a second positioning hole 601 corresponding to the first positioning hole.

[0029] A washer 706 is connected to the snap-fit ​​bolt 704, and the washer 706 is to the left of the corresponding positioning plate 6. When installing the positioning plate 6, the positioning plate 6 is snapped onto the snap-fit ​​bolt 704 through two snap-fit ​​grooves 603, which initially achieves the positioning of the positioning plate 6 in the height direction. When the first positioning hole and the second positioning hole 601 are aligned, the positioning pin 705 is inserted into the second positioning hole 601 and the first positioning hole in sequence to further achieve the positioning of the positioning plate 6 in the height direction. The snap-fit ​​bolt 704 is screwed in, and the snap-fit ​​bolt 704 presses the washer 706 tightly on the left side of the positioning plate 6 to fix the positioning plate 6. The ring rib is glued to the air intake on the left side of the positioning plate 6.

[0030] Example 2: Reference Figure 3 , Figure 5 and Figure 6This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, at least one first auxiliary drilling unit 5 is connected to the top plate 1. The first auxiliary drilling unit 5 includes a first auxiliary drilling plate 501. The first auxiliary drilling plate 501 includes a first connecting part 403-2. A downwardly extending first auxiliary drilling part 403-1 is fixed to the lower side of the first connecting part 403-2. A first screw hole is opened on the first connecting part 403-2. A second screw hole 101 corresponding to the first screw hole is opened on the top plate 1. A first connecting hole 102 is opened on the first auxiliary drilling part 403-1. The first auxiliary drilling part 403-1 is connected to the first auxiliary drilling sleeve 402 through the first connecting hole 102. The first connecting parts 403-2 on both sides of the first screw hole are provided with first insertion holes. The top plate 1 on both sides of the second screw hole 101 is provided with a number of first connecting holes 102 that correspond one-to-one with the first insertion holes. The top plate 1 is connected to the first positioning pin 504 through the first connecting hole 102. The first positioning pin 504 extends out of the top plate 1. The first connecting part 403-2 is inserted into the corresponding first positioning pin 504 through the first insertion hole.

[0032] After bonding is complete, holes need to be drilled at designated locations in the air intake. The position of the first auxiliary drilling unit 5 is set according to the required location. When the first auxiliary drilling unit 5 is installed on the top plate 1, the first auxiliary drilling plate 501 is inserted into the corresponding two first positioning pins 504 through two first insertion holes to achieve positioning of the first auxiliary drilling plate 501. The first auxiliary drilling bolt 401 is screwed into the first screw hole and the corresponding second screw hole 101 to fix the first auxiliary drilling plate 501 to the top plate 1. The first auxiliary drilling sleeve 402 is inserted into the first connecting hole 102 to facilitate drilling of the product later and to limit the product in the left and right directions.

[0033] Specifically, at least one second auxiliary drilling unit 4 is connected to the upper side of the fixed base 3. The second auxiliary drilling unit 4 has a second auxiliary drilling plate 403. The second auxiliary drilling plate 403 includes a first connecting part 403-2. A second auxiliary drilling part 501-2 is fixed to one end of the first connecting part 403-2 facing the positioning surface. A third screw hole is opened on the second connecting part 501-1. A fourth screw hole corresponding to the third screw hole is opened on the top plate 1. A third screw hole is opened on the second auxiliary drilling part 501-2. The second auxiliary drilling part 501-2 is connected to the second auxiliary drilling sleeve 502 through the second connecting hole. The second connecting part 501-1 on both sides of the second screw hole 101 is provided with a second insertion hole. The fixed base 3 on both sides of the second screw hole 101 is provided with a number of second connecting holes that correspond one-to-one with the second insertion hole. The fixed base 3 is connected to the second positioning pin through the second connecting hole. The second positioning pin extends upward outside the fixed base 3. The second connecting part 501-1 is inserted into the corresponding second positioning pin through the second insertion hole.

[0034] The position of the second auxiliary drilling unit 4 is set according to the required position. When the second auxiliary drilling unit 4 is installed on the top plate 1, the second auxiliary drilling plate 403 is inserted into the corresponding two second positioning pins through two second insertion holes to achieve the positioning of the second auxiliary drilling plate 403. The second auxiliary drilling bolt 503 is screwed into the third screw hole and the corresponding fourth screw hole to fix the second auxiliary drilling plate 403 to the top plate 1. The second auxiliary drilling sleeve 502 is inserted into the second connecting hole to facilitate drilling of the product later.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning tool for secondary bonding of a ring rib of an aircraft inlet, characterized in that: It includes a fixed base, the upper side of which has a positioning part that mates with the inner edge of the air intake. Several sets of support units are connected to the fixed base. The support unit includes a first support block and a second support block in front of and behind the positioning part. Support brackets are fixedly connected to the upper sides of the first support block and the second support block respectively. A positioning plate is detachably connected between the two corresponding support brackets. A clearance groove is opened on the positioning plate.

2. The positioning tooling for secondary bonding of the ring rib of the aircraft inlet according to claim 1, characterized in that: The positioning plate has a snap-fit ​​groove on one of its front and rear sides facing downwards, and the support bracket is threaded with a snap-fit ​​bolt, so that the positioning plate can be snapped onto the snap-fit ​​bolt through the snap-fit ​​groove.

3. The positioning tooling for secondary bonding of the ring rib of the aircraft inlet according to claim 2, characterized in that: The support bracket above the snap-fit ​​bolt has a first positioning hole, and the positioning plate above the snap-fit ​​groove has a second positioning hole corresponding to the first positioning hole.

4. The positioning tooling for secondary bonding of the ring rib of the aircraft inlet according to any one of claims 1-3, characterized in that: The fixed base has a top plate fixedly connected to one side in the left-right direction, and the end of the air intake can be attached to the top plate.

5. The positioning tooling for secondary bonding of the ring rib of the aircraft inlet according to claim 4, characterized in that: At least one first auxiliary drilling unit is connected to the top plate. The first auxiliary drilling unit includes a first auxiliary drilling plate. The first auxiliary drilling plate includes a first connecting part. A downwardly extending first auxiliary drilling part is fixed on the lower side of the first connecting part. A first screw hole is opened on the first connecting part. A second screw hole corresponding to the first screw hole is opened on the top plate. A first connecting hole is opened on the first auxiliary drilling part. A first auxiliary drilling sleeve is connected to the first auxiliary drilling part through the first connecting hole.

6. The positioning fixture for secondary bonding of the ring reinforcement of an aircraft air intake as described in claim 5, characterized in that: At least one second auxiliary drilling unit is connected to the upper side of the fixed base. The second auxiliary drilling unit has a second auxiliary drilling plate. The second auxiliary drilling plate includes a second connecting part. The second auxiliary drilling part is fixed to one end of the first connecting part in the direction of the positioning surface. A third screw hole is opened on the second connecting part. A fourth screw hole corresponding to the third screw hole is opened on the top plate. A second connecting hole is opened on the second auxiliary drilling part. A second auxiliary drilling sleeve is connected to the second auxiliary drilling part through the second connecting hole.

7. The positioning tooling for secondary bonding of the ring rib of the aircraft inlet according to claim 6, characterized in that: First insertion holes are provided on the first connecting parts on both sides of the first screw hole. Several first connecting holes corresponding to the first insertion holes are provided on the top plates on both sides of the second screw hole. First positioning pins are connected to the top plates through the first connecting holes. The first positioning pins extend out of the top plates. The first connecting parts are inserted into the corresponding first positioning pins through the first insertion holes.

8. The positioning tooling for secondary bonding of the ring rib of the aircraft inlet according to claim 6, characterized in that: The second connecting parts on both sides of the second screw hole are provided with second insertion holes. The fixed base on both sides of the second screw hole is provided with several second connecting holes that correspond one-to-one with the second insertion holes. The fixed base is connected to the second positioning pin through the second connecting holes. The second positioning pin extends upward outside the fixed base. The second connecting part is inserted into the corresponding second positioning pin through the second insertion hole.

9. The positioning fixture for secondary bonding of the ring reinforcement of an aircraft air intake as described in any one of claims 1 to 3, characterized in that: The fixed base has several lifting lugs arranged around its outer perimeter.

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