Tool for checking peripheral profile tolerance of honeycomb sandwich plate and position tolerance of connecting piece hole group

Abstract

The utility model relates to a tool for checking the peripheral profile tolerance of a honeycomb sandwich plate and the position tolerance of a connecting piece hole group, which comprises a platform supporting frame, a supporting platform for placing the honeycomb sandwich plate, a profile tolerance checking block and a hole group checking block, a profile tolerance checking block is arranged on the supporting platform corresponding to the peripheral profile of the honeycomb sandwich plate, and a hole group checking block is arranged on the supporting platform corresponding to a connecting piece mounting hole in the honeycomb sandwich plate; the profile tolerance checking block is provided with a go-no go gauge for checking the peripheral profile tolerance, the hole group checking block is provided with a checking pin for checking the hole group position tolerance of the connecting piece, and the checking pin comprises a positioning end and a checking end; all the inspection pins can be inserted into the hole group inspection blocks at the same time, that is, it is proved that the hole group position tolerance of the connecting piece meets the requirement, and that when the go-no go gauge inspects the peripheral profile, the go end of the go-no go gauge can pass and the no-go end of the go-no go gauge does not pass, that is, it is proved that the peripheral profile meets the requirement, so that the inspection efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material manufacturing, in particular to a tool for inspecting the peripheral contour of a honeycomb sandwich plate and the position of a connecting piece hole group. Background Art

[0002] Composite honeycomb sandwich panels are composed of a central honeycomb core and fiber panels on the upper and lower sides bonded together by adhesive film. In addition to having excellent properties such as light weight, corrosion resistance, sound insulation, and flame retardancy, this type of honeycomb sandwich panel also has the advantage of being easy to disassemble, interchange, replace, and repair by embedding connectors on it. It is widely used in both aerospace and civil fields, and its application in aircraft floors is particularly dominant.

[0003] After CNC machining, perimeter edge banding, and installation of connectors, composite honeycomb sandwich panels need to be inspected for their contours after edge banding and the position of the connector hole groups after connector installation to determine whether their status after edge banding and connector installation meets the design and process requirements. However, since there are usually a large number of floors on an aircraft and each floor is of different sizes, the number and installation positions of connectors on the floor are also different. Especially when the number of aircraft orders is large, certain requirements are placed on the rapid processing and manufacturing of the floors. Among them, the inspection method and method are also one of the factors affecting the processing and manufacturing speed. Utility Model Content

[0004] The technical problem solved by the present invention is to provide a tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connection hole group, so as to solve the problems in the above-mentioned background technology.

[0005] The technical problem solved by the present invention is achieved by the following technical solutions:

[0006] A tool for inspecting the peripheral contour of a honeycomb sandwich panel and the position of a connector hole group, comprising a platform support frame, a support platform for placing the honeycomb sandwich panel, a contour inspection block and a hole group inspection block, wherein a support platform is installed on the platform support frame, a contour inspection block is provided on the support platform corresponding to the peripheral contour of the honeycomb sandwich panel, and a hole group inspection block is provided on the support platform corresponding to the connector mounting holes on the honeycomb sandwich panel; a go-through gauge for inspecting the peripheral contour is provided on the contour inspection block, and an inspection pin for inspecting the position of the connector hole group is provided on the hole group inspection block, wherein the inspection pin comprises a positioning end and an inspection end.

[0007] In the present invention, the contour inspection block is an L-shaped structure, the lateral end of the L-shaped structure is a connecting base, and the longitudinal end of the L-shaped structure is a detection surface for detecting the peripheral contour of the honeycomb sandwich panel. The connecting base is provided with an outer pin hole and an inner pin hole, which are used to install the connecting base on the support platform, and the diameter of the outer pin hole is larger than the diameter of the inner pin hole, and is installed at a theoretical position of 6 mm around the honeycomb sandwich panel.

[0008] In the present invention, the hole group inspection block is a block structure, and diagonal pin holes and diagonal threaded holes are respectively opened at the two diagonals of the block structure, which are used to install the hole group inspection block on the support platform. A positioning hole is opened in the middle of the hole group inspection block for inserting an inspection pin for detection. A clearance hole groove with a depth of not less than 0.5mm is provided at the positioning hole, and the diameter of the clearance hole groove is not less than 15mm to ensure that the hole group inspection block does not interfere with the connecting parts on the honeycomb sandwich panel, and a bushing is provided in the positioning hole for matching the positioning end of the inspection pin.

[0009] In the present invention, the inspection pin is a step pin, the diameter and tolerance of the positioning end of the inspection pin match the aperture and tolerance of the bushing, the diameter and tolerance of the inspection end of the inspection pin match the aperture and tolerance of the connector mounting hole, the coaxiality requirement between the positioning end and the inspection end of the inspection pin is not less than 0.01mm, and the number of inspection pins is consistent with the number of connector mounting holes to be inspected.

[0010] Beneficial effect: The utility model is provided with a contour inspection block and a hole group inspection block on the supporting platform corresponding to the peripheral contour of the honeycomb sandwich panel and the connector holes, so as to inspect the peripheral contour of the honeycomb sandwich panel and the connector holes, and all inspection pins can be inserted into the hole group inspection block at the same time, which proves that the position tolerance of the connector hole group meets the requirements, and the no-go gauge is used to check the peripheral contour. The through end of the no-go gauge can pass, and the non-through end of the no-go gauge cannot pass, which proves that the peripheral contour meets the requirements, effectively improving the inspection efficiency. It has been applied in the inspection of the peripheral contour and the position of the connector hole group after the peripheral edge banding of the passenger and cargo compartment floor of civil aircraft and the installation of connectors, and the use effect of the inspection tooling has also been well verified. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of a preferred embodiment of the present utility model.

[0012] Figure 2 It is a top view of a preferred embodiment of the present utility model.

[0013] Figure 3 This is a structural diagram of a contour inspection block in a preferred embodiment of the present utility model.

[0014] Figure 4This is a schematic diagram of the hole group inspection block structure in a preferred embodiment of the present utility model.

[0015] Figure 5 Schematic diagram of hole group position inspection in a preferred embodiment of the present utility model.

[0016] Figure 6 This is a schematic diagram of checking the through end of a peripheral contour setting gauge in a preferred embodiment of the present utility model.

[0017] Figure 7 This is a schematic diagram of checking the through end of a peripheral contour setting gauge in a preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0019] See also Figures 1 to 7 A tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connector hole group, comprising a platform support frame 1, a support platform 2, a contour inspection block 3, and a hole group inspection block 4, wherein the contour inspection block 3 is provided with a matching go-through gauge 18, and the hole group inspection block 4 is provided with a matching inspection pin 15;

[0020] According to the design tolerance requirements for the contour of the honeycomb sandwich panel 16 after edge sealing and the position of the hole group after the connector is installed, an inspection tool is designed to enable the inspection of the contour of the periphery and the position of the hole group to be carried out;

[0021] The inspection tooling adopts the platform support frame 1 to position the support platform 2, and the honeycomb sandwich panel 16 is placed on the support platform 2 and positioned in the Z direction. The installation position of the hole group inspection block 4 is reserved on the edge of the support platform 2. The number of the hole group inspection blocks 4 must be consistent with the number of the connection mounting holes on the honeycomb sandwich panel 16. The installation position accuracy of the hole group inspection block 4 must not be less than φ0.1mm. The diagonal pin holes 9 and diagonal threaded holes 10 are respectively opened at the two diagonal corners of the hole group inspection block 4 to connect the hole group inspection block 4 to the support platform 2. The hole group inspection block 4. A positioning hole 11 is opened in the middle, and a clearance groove with a depth of not less than 0.5mm is set at the positioning hole 11. The diameter of the clearance groove is not less than 15mm to ensure that the hole group inspection block 4 does not interfere with the connector 14 on the honeycomb sandwich panel 16. The positioning hole 11 and the positioning end of the inspection pin 15 are matched by pressing the bushing 12. The height of the bushing 12 is lower than the depth of the positioning hole 11. The overall height of the hole group inspection block 4 is lower than the height of the support platform 2. The length and width dimensions should be reasonable to facilitate the placement and removal of the honeycomb sandwich panel 16 on the support platform 2.

[0022] The inspection pin 15 matched with the hole group inspection block 4 is set as a step pin. The diameter and tolerance of the positioning end of the inspection pin 15 match the aperture and tolerance of the bushing 12. The diameter and tolerance of the inspection end of the inspection pin 15 match the aperture and tolerance of the connector 14. The coaxiality requirement between the positioning end and the inspection end of the inspection pin 15 is not less than 0.01mm. The number of inspection pins 15 is consistent with the number of holes in the connector 14 to be inspected. Two outer pin holes 5 and two inner pin holes 6 are opened on the connecting base 8 of the contour inspection block 3. When installing the connecting base 8 on the supporting platform 2, the diameter of the outer pin hole 5 is larger than the diameter of the inner pin hole 6. It is installed at a theoretical position of 6 mm around the honeycomb sandwich panel 16. One is installed in the middle position and at both ends of the long side and short side of the honeycomb sandwich panel 16. The contour inspection block 3 is installed at the remaining positions at a certain interval. After installation, the position accuracy of the detection surface 7 on the contour inspection block 3 is required to be not less than 0.1 mm to meet the requirement of inspecting the contour of the honeycomb sandwich panel 16 after edge sealing.

[0023] In this embodiment, an inspection tool is used to inspect the perimeter contour of the honeycomb sandwich panel and the position accuracy of the connector hole groups, as follows:

[0024] The honeycomb sandwich panel 16 with completed peripheral edge sealing and connector installation is placed on the inspection tool for inspection of the peripheral contour and connector hole group position. Completion here means that the peripheral edge sealing of the honeycomb sandwich panel 16 and the potting glue 13 for installing the connector are completely cured. First, use the inspection pins 15 that are matched with the inspection tool to check the connector hole group position. All inspection pins 15 can be inserted at the same time, which proves that the connector hole group position tolerance meets the requirements. Keep the inspection pins 15 fully inserted, and then use the stop gauge 18 to check the peripheral contour. The through end 17 of the stop gauge 18 can pass, and the stop end 19 of the stop gauge 18 does not pass, which proves that the peripheral contour meets the requirements, thereby proving that the peripheral contour and connector hole group position tolerance of the processed honeycomb sandwich panel 16 meet the requirements, that is, the product is qualified.

[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connector hole group, comprising a platform support frame, a support platform for placing the honeycomb sandwich panel, a contour inspection block, and a hole group inspection block, characterized in that: A supporting platform is installed on the platform supporting frame, a contour inspection block is arranged on the supporting platform corresponding to the peripheral contour of the honeycomb sandwich panel, and a hole group inspection block is arranged on the supporting platform corresponding to the connector mounting hole on the honeycomb sandwich panel; the contour inspection block is provided with a go-through gauge for inspecting the peripheral contour, and the hole group inspection block is provided with an inspection pin for inspecting the position of the connector hole group, and the inspection pin includes a positioning end and an inspection end.

2. A honeycomb sandwich panel peripheral contour and connector hole group position inspection tool according to claim 1, characterized in that: The contour inspection block is an L-shaped structure, wherein the transverse end of the L-shaped structure is a connection base, and the longitudinal end of the L-shaped structure is a detection surface for detecting the peripheral contour of the honeycomb sandwich panel.

3. A tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connector hole group according to claim 2, characterized in that: The connecting base is provided with an outer pin hole and an inner pin hole for mounting the connecting base on the supporting platform, and the diameter of the outer pin hole is larger than the diameter of the inner pin hole.

4. The tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connector hole group according to claim 1, characterized in that: The hole group inspection block is a block structure, and two diagonal corners of the block structure are respectively provided with diagonal pin holes and diagonal threaded holes for mounting the hole group inspection block on the support platform.

5. A tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connector hole group according to claim 4, characterized in that: A positioning hole for inserting a test pin for testing is provided in the middle of the hole group inspection block, and a clearance hole groove is provided at the positioning hole.

6. A tool for inspecting the perimeter contour of a honeycomb sandwich panel and the position of a connector hole group according to claim 5, characterized in that: A bushing is provided in the positioning hole for cooperating with the positioning end of the inspection pin.

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