Multi-station aramid honeycomb core thickness detection apparatus

Abstract

This utility model belongs to the field of thickness detection technology, and particularly relates to a multi-station aramid honeycomb core thickness detection device, comprising: a base with grooves, wherein multiple aramid honeycomb core workpieces can be simultaneously supported by several placement seats on the mounting base; a rotary drive device drives the mounting seats to rotate, increasing the number of tests per unit time; a lifting drive device drives the flattening structure to descend, which can specifically flatten the warped edges of the workpieces. Aramid honeycomb cores are relatively thin and light, and edge warping is prone to occur during production. If not addressed, the workpieces will not fit tightly against the detection reference surface during detection, resulting in deviations in thickness detection data. The flattening structure corrects the shape of the workpieces by physically pressing, ensuring that the workpieces fit flat against the detection station; and the detection device, relying on the descending action of the lifting drive device, can directly convert the descending height of the lifting drive device into aramid honeycomb core thickness data.

Description

Technical Field

[0001] This utility model belongs to the field of thickness detection technology, and in particular relates to a multi-station aramid honeycomb core thickness detection device. Background Technology

[0002] Aramid honeycomb cores are widely used in aerospace, rail transportation, and high-end equipment manufacturing due to their excellent properties such as light weight, high specific strength, and fatigue resistance. In the production process of aramid honeycomb cores, thickness is a key indicator that directly affects their mechanical properties (such as compressive and flexural strength) and assembly compatibility—especially in the assembly of aerospace components, where the thickness deviation of aramid honeycomb cores must be controlled within the micrometer level. If the thickness exceeds this tolerance, it may lead to excessive gaps between components, uneven stress, and even safety hazards. Therefore, precise thickness testing is essential.

[0003] Currently, thickness inspection of aramid honeycomb cores mainly relies on two technical solutions: one is contact inspection using handheld inspection tools (such as micrometers and thickness gauges), and the other is semi-automatic inspection based on single-station equipment. However, existing technologies generally suffer from the following problems:

[0004] Low inspection efficiency and difficulty in adapting to mass production: Most inspection equipment adopts a single-station design, which requires the completion of the entire process of "loading-positioning-inspection-unloading" before the next workpiece can be inspected, resulting in a long single inspection cycle; for mass production scenarios, frequent manual loading and unloading further reduces the overall inspection efficiency and cannot meet the needs of continuous industrial production.

[0005] Workpiece warping leads to disordered inspection benchmarks and insufficient accuracy: Due to the material characteristics (fiber weaving structure) and manufacturing process (such as cooling shrinkage after hot pressing), aramid honeycomb cores are prone to edge warping or localized unevenness. Existing equipment lacks a targeted flattening structure or only uses simple flat plate pressing—either failing to completely eliminate warping, resulting in loose contact between the workpiece and the benchmark surface during inspection and inconsistent thickness measurement benchmarks; or concentrating the flattening force in a localized area, causing minor deformation of the workpiece and further amplifying inspection errors.

[0006] Redundant equipment layout and low space utilization: Some multi-station equipment adopts a linear arrangement, which requires sufficient loading and unloading channels and has a large overall footprint; moreover, it is difficult to achieve synchronous linkage between each station, and there is still waiting time, which fails to give full play to the efficiency advantages of multi-station equipment.

[0007] In summary, existing aramid honeycomb core thickness detection technologies have significant shortcomings in both efficiency and accuracy, making it difficult to meet the stringent requirements of high-end fields for aramid honeycomb core thickness detection. There is an urgent need for an automated detection device that can achieve continuous detection and precise flattening. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned technical problems by providing a multi-station aramid honeycomb core thickness detection device.

[0009] In view of this, the present invention provides a multi-station aramid honeycomb core thickness detection device, comprising: a base, wherein a groove is provided on the base, a rotary drive device is provided in the groove, and a mounting base is provided at the drive end of the rotary drive device;

[0010] The mounting base is provided with several placement seats, the base is provided with a bracket, the bracket is provided with a mounting plate, and several lifting drive devices are provided below the mounting plate. Each lifting drive device has a flattening structure at its drive end for flattening the warped edge of the workpiece.

[0011] The lifting drive device is equipped with a detection device for detecting the thickness of the workpiece based on the downward stroke of the lifting drive device.

[0012] Preferably, the flattening structure includes a pressing block disposed at the driving end of the lifting drive device and a guide block disposed below the pressing block.

[0013] Preferably, the lifting drive device is configured as two sets of lifting mechanisms, and the lifting drive devices of the two sets of lifting mechanisms are respectively located on both sides of the mounting plate.

[0014] Preferably, the guide block is spherically shaped, the bottom of the pressure block has a hemispherical groove, a portion of the guide block is movably disposed within the hemispherical groove, and the ratio of the surface area of ​​the movable portion of the guide block to the surface area of ​​the guide block is greater than 0.5.

[0015] Preferably, the guide block is integrally formed from stainless steel, and the outer surface of the guide block is set as a smooth surface.

[0016] Preferably, the four lifting drive devices at both ends of the two sets of lifting mechanisms correspond to the four corners of the placement seat.

[0017] Preferably, annular pressure sensors are provided at the bottom of the pressure blocks at the four corners of the placement seat.

[0018] Preferably, the detection device is a laser rangefinder.

[0019] Preferably, the detection device is mounted on the lifting drive device at the four corners of the placement seat, and the detection end of the detection device is aligned with the top of the pressure block.

[0020] Preferably, the placement seats are arranged in a circular array on the mounting base.

[0021] Compared with the prior art, the feeding system of the blanching machine described in this utility model has the following advantages:

[0022] By setting several placement seats on the mounting base, multiple aramid honeycomb core workpieces can be carried simultaneously. With the help of the rotary drive device to drive the mounting base to rotate, the number of inspections per unit time is increased. The lifting drive device drives the flattening structure to descend, which can specifically flatten the warped edges of the workpiece. Aramid honeycomb core material is relatively light and thin, and edge warping is prone to occur during the production process. If not handled, it will lead to poor contact between the workpiece and the inspection reference surface during inspection, resulting in deviations in thickness inspection data. The flattening structure corrects the shape of the workpiece by physically pressing, ensuring that the workpiece is flat and fits the inspection station. The inspection equipment relies on the descending action of the lifting drive device. By recording the descending height of the lifting drive device (combining the difference between the initial position and the position after contacting the workpiece), it can directly convert it into the thickness data of the aramid honeycomb core. This inspection method does not require manual measurement, reduces human operation error, and can synchronize the lifting action and the inspection process in real time. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the interior of the groove in this utility model;

[0025] Figure 3 This is a schematic diagram of the mounting block of this utility model;

[0026] Figure 4 This is a schematic diagram of the bottom of the pressing block of this utility model;

[0027] The markings in the diagram are as follows:

[0028] 1. Base; 2. Groove; 3. Rotary drive device; 4. Mounting seat; 5. Placement seat; 6. Bracket; 8. Mounting plate; 9. Lifting drive device; 10. Pressure block; 13. Detection device; 15. Guide block; 16. Placement groove; 17. Annular pressure sensor; 18. Hemispherical groove. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0030] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Reference Figures 1-4 A multi-station aramid honeycomb core thickness detection device includes: a base 1, a groove 2 provided on the base 1, a rotary drive device 3 provided in the groove 2, and a mounting base 4 provided at the drive end of the rotary drive device 3.

[0034] The mounting base 4 is provided with several placement seats 5, and the top of the placement seat 5 is provided with a placement groove 16 for placing aramid honeycomb core block workpieces. The base 1 is provided with a bracket 6, and the bracket 6 is provided with a mounting plate 8. Several lifting drive devices 9 are provided below the mounting plate 8. Each lifting drive device 9 has a flattening structure at its drive end for flattening the warped edge of the workpiece.

[0035] The lifting drive device 9 is equipped with a detection device 13, which is used to detect the thickness of the workpiece according to the downward stroke of the lifting drive device 9.

[0036] This application sets several placement seats 5 on the mounting base 4, which can simultaneously support multiple aramid honeycomb core workpieces. With the help of the rotary drive device 3, the mounting base 4 is rotated, increasing the number of inspections per unit time. The lifting drive device 9 drives the flattening structure to descend, which can specifically flatten the warped edges of the workpieces. Aramid honeycomb cores are relatively thin and light, and edge warping is prone to occur during the production process. If not handled, the workpiece will not fit tightly with the inspection reference surface during inspection, resulting in deviations in thickness inspection data. The flattening structure corrects the shape of the workpiece by physical pressing, ensuring that the workpiece fits flat and in close contact with the inspection station. The inspection device 13 relies on the descending action of the lifting drive device 9, and can directly convert the descending height of the lifting drive device 9 (combined with the difference between the initial position and the position after contacting the workpiece) into the thickness data of the aramid honeycomb core. This inspection method does not require manual measurement, reduces human operation error, and can synchronize the lifting action and the inspection process in real time.

[0037] In the example of this application, the flattening structure includes a pressing block 10 disposed at the driving end of the lifting drive device 9 and a guide block 15 disposed below the pressing block 10.

[0038] As a preferred example of this utility model, the pressure block 10, as a component that directly contacts the workpiece, can provide a uniform pressure application surface, avoid damage to the aramid honeycomb core caused by excessive local pressure, and ensure a uniform flattening effect; the guide block 15 can guide the flattening direction, avoid the problem of local incomplete flattening caused by workpiece position deviation, ensure a more uniform flattening effect on the workpiece, and further reduce the thickness detection error caused by uneven workpiece.

[0039] In the example of this application, the lifting drive device 9 is configured as two sets of lifting mechanisms, and the lifting drive device 9 in the two sets of lifting mechanisms is located on both sides of the mounting plate 8.

[0040] As a preferred example of this utility model, two sets of lifting mechanisms are respectively located on both sides of the mounting plate 8, which can balance the force on the mounting plate 8 and avoid structural deformation caused by unilateral force; at the same time, the workpiece can be flattened on both sides simultaneously, improving the flattening effect of the workpiece.

[0041] In the example of this application, the guide block 15 is spherically shaped, the bottom of the pressure block 10 is provided with a hemispherical groove 18, a portion of the guide block 15 is movably disposed in the hemispherical groove 18, and the ratio of the surface area of ​​the partially movable guide block 15 to the surface area of ​​the guide block 15 is greater than 0.5.

[0042] As a preferred example of this utility model, the design of the spherical guide block 15 in conjunction with the hemispherical groove 18 allows the guide block 15 to adaptively adjust its angle, which can better fit the workpiece surface (especially for workpieces with small unevenness), ensure that the flattening force is applied evenly to the workpiece, avoid local overpressure or incomplete flattening, and improve the adaptability and reliability of flattening.

[0043] In the example of this application, the guide block 15 is integrally formed of stainless steel, and the outer surface of the guide block 15 is set as a smooth surface.

[0044] As a preferred example of this utility model, the stainless steel guide block 15 has the characteristics of high strength, wear resistance and corrosion resistance, which extends the service life of the component; the one-piece molding ensures structural strength and avoids the risk of breakage; the smooth surface reduces frictional damage with the workpiece, while ensuring smooth movement of the guide block 15 and maintaining the stability of the flattening process.

[0045] In the example of this application, the four lifting drive devices 9 at both ends of the two sets of lifting mechanisms correspond to the four corner positions of the placement seat 5.

[0046] As a preferred example of this utility model, the pressure block 10 can apply pressure from all four corners of the workpiece simultaneously. This distribution method can ensure that the force is uniform in all parts of the aramid honeycomb core, avoiding the bulging in the middle and wrinkling at the edges and corners of the workpiece due to unilateral or localized force. Especially for large-sized workpieces, it can completely eliminate the problem of edge warping, ensuring that the workpiece inspection surface is flat. The symmetrically distributed drive device has higher synchronization, reducing uneven flattening caused by drive differences, providing a uniform workpiece state for simultaneous multi-station inspection, and ensuring the comparability and accuracy of the inspection results of each station.

[0047] In the example of this application, annular pressure sensors 17 are provided at the bottom of the pressure blocks 10 at the four corners of the placement seat 5.

[0048] As a preferred example of this utility model, the annular pressure sensor 17 can monitor the pressure values ​​at the four corners of the pressure block 10 in real time, ensuring that the flattening force is uniform and meets the process requirements (avoiding excessive pressure that could damage the workpiece or insufficient pressure that could lead to inadequate flattening). At the same time, it can achieve closed-loop control through pressure feedback, further improving the reliability of the detection process.

[0049] In the example of this application, the detection device 13 is a laser rangefinder.

[0050] As a preferred example of this utility model, the laser rangefinder does not need to directly contact the aramid honeycomb core, which avoids the problems of the probe scratching the workpiece surface and damaging the internal structure in traditional contact testing. It is especially suitable for the fragile surface and precise structure of aramid honeycomb core, ensuring the integrity and performance of the workpiece after testing.

[0051] In the example of this application, the detection device 13 is mounted on the lifting drive device 9 at the four corners of the placement seat 5, and the detection end of the detection device 13 is aligned with the top of the pressure block 10.

[0052] As a preferred example of this utility model, the detection device 13 is set at the four corners of the workstation, which can simultaneously acquire the thickness data of the four corners of the workpiece. It can not only obtain the overall thickness of the workpiece, but also reflect the uniformity of the thickness, avoid the limitations of single-point detection, and improve the comprehensiveness and accuracy of the detection.

[0053] In the example of this application, the placement seats 5 are arranged in a circular array on the mounting seat 4.

[0054] As a preferred example of this utility model, the placement of workstations in a circular array, combined with the rotary drive device 3, enables continuous cyclic operation of loading, inspection, and unloading. Different processes can be carried out simultaneously at each workstation, significantly shortening the inspection cycle. At the same time, the circular structure makes the equipment layout more compact, saves installation space, and improves space utilization.

[0055] The multi-station aramid honeycomb core thickness detection equipment disclosed in this application upgrades the thickness detection process of aramid honeycomb cores from the traditional single-station reciprocating detection to a multi-station rotary continuous cyclic detection structure. Multiple placement seats 5 are arranged in a circular array on the mounting base 4 of the equipment, and a rotary drive is used to achieve parallel multi-station loading, flattening, detection, and unloading, thereby significantly shortening the single detection cycle and increasing the number of detections per unit time. Simultaneously, this application adds a flattening structure before the detection action, using a combination of a pressure block 10 and a spherical guide block 15 to achieve adaptive edge correction, avoiding inconsistencies in the detection benchmark caused by workpiece edge warping. A ring pressure sensor 17 monitors the flattening force in real time, ensuring that edge warping is effectively eliminated without damaging the workpiece. The detection stage uses laser ranging synchronized with the lifting drive action, avoiding surface damage that may be caused by contact detection, and directly converting the difference in descent stroke into thickness data, reducing human intervention and secondary positioning errors. The improved multi-station aramid honeycomb core thickness inspection equipment of this application achieves a compact structural layout, automated inspection process, and high-precision inspection data. It is suitable for batch inspection of workpieces of various specifications and can meet the stringent requirements of micron-level accuracy in the aerospace field, ensuring the unity of inspection efficiency, measurement consistency, and workpiece integrity.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A multi-station aramid honeycomb core thickness detection device, characterized in that, include: A base (1) is provided with a groove (2), a rotary drive device (3) is provided in the groove (2), and a mounting base (4) is provided at the drive end of the rotary drive device (3). The mounting base (4) is provided with several placement seats (5), the base (1) is provided with a bracket (6), the bracket (6) is provided with a mounting plate (8), and several lifting drive devices (9) are provided below the mounting plate (8). Each lifting drive device (9) is provided with a flattening structure at its drive end for flattening the warped edge of the workpiece. The lifting drive device (9) is equipped with a detection device (13) for detecting the thickness of the workpiece based on the stroke of the lifting drive device (9) as it descends.

2. The multi-station aramid honeycomb core thickness detection equipment according to claim 1, characterized in that, The flattening structure includes a pressure block (10) disposed at the driving end of the lifting drive device (9) and a guide block (15) disposed below the pressure block (10).

3. The multi-station aramid honeycomb core thickness detection equipment according to claim 1, characterized in that, The lifting drive device (9) is configured as two sets of lifting mechanisms, and the lifting drive device (9) in the two sets of lifting mechanisms is located on both sides of the mounting plate (8).

4. The multi-station aramid honeycomb core thickness detection equipment according to claim 2, characterized in that, The guide block (15) is spherically shaped, and the bottom of the pressure block (10) is provided with a hemispherical groove (18). Part of the guide block (15) is movably disposed in the hemispherical groove (18), and the ratio of the surface area of ​​the part of the guide block (15) to the surface area of ​​the guide block (15) is greater than 0.

5.

5. The multi-station aramid honeycomb core thickness detection equipment according to claim 4, characterized in that, The guide block (15) is integrally formed of stainless steel, and the outer surface of the guide block (15) is set as a smooth surface.

6. The multi-station aramid honeycomb core thickness detection device according to claim 3, characterized in that, The four lifting drive devices (9) at both ends of the two sets of lifting mechanisms correspond to the four corners of the placement seat (5).

7. The multi-station aramid honeycomb core thickness detection equipment according to claim 1, characterized in that, An annular pressure sensor (17) is provided at the bottom of each of the four corners of the placement base (5).

8. The multi-station aramid honeycomb core thickness detection equipment according to claim 1, characterized in that, The detection device (13) is a laser rangefinder.

9. The multi-station aramid honeycomb core thickness detection equipment according to claim 8, characterized in that, The detection device (13) is set on the lifting drive device (9) at the four corners of the placement seat (5), and the detection end of the detection device (13) is aligned with the top of the pressure block (10).

10. The multi-station aramid honeycomb core thickness detection equipment according to claim 1, characterized in that, The placement seats (5) are arranged in a ring array on the mounting seats (4).

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