Modularized tool for curved surface honeycomb processing

Abstract

The utility model discloses a modular tool for curved surface honeycomb processing, which comprises a base, a curved surface forming module is arranged on the base, a limiting plate for limiting the curved surface forming module is arranged at one end of the base, the limiting plate is in contact with one end of the curved surface forming module, and a recovery driving device is arranged at the other end of the curved surface forming module. And the recovery driving device is used for recovering the curved surface forming module to an initial state, and the recovery driving device is respectively connected with the other end of the curved surface forming module and the base. The positioning reference can be quickly provided for the machining of the second curved surface of the honeycomb, and a special machining tool is not used, so that the machining efficiency is greatly improved, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of curved surface honeycomb processing, in particular to a modular tooling for curved surface honeycomb processing. Background Art

[0002] Honeycomb sandwich structures are widely used in the aerospace field because of their many excellent properties, such as light weight, high specific strength, high specific stiffness, outstanding corrosion resistance and flame retardancy, excellent environmental resistance and insulation, good electromagnetic wave permeability and high temperature stability. However, as a sandwich material, most honeycombs require the two opposite faces of the cubic honeycomb sandwich to be processed into curved surfaces, so that the profile is a curved surface structure. When processing curved honeycombs, the surface of the cubic honeycomb is a plane, and it can be placed directly on the processing table to process the first curved surface. After the first curved surface is processed, a specific processing tool is required to clamp the honeycomb before processing the second curved surface. However, the processing tool has poor versatility. Different tools are required to process different curved surfaces. The cost of a set of tools can be as high as hundreds of thousands, which leads to reduced processing efficiency and increased processing costs. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model proposes a modular tooling for curved honeycomb processing. When processing the second curved surface of the curved honeycomb, by using the curved surface forming module to follow the first curved surface, the processing positioning benchmark for the second curved surface of the honeycomb can be quickly provided. The utility model has good versatility and avoids the use of special processing tooling, thereby improving processing efficiency and reducing production costs.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a modular tool for curved honeycomb processing, comprising a base, on which a curved surface forming module is arranged, and the curved surface forming module is composed of M×N array forming components, wherein M≥2, N≥2.

[0006] Preferably, a limiting plate for limiting the curved surface forming module is provided at one end of the base, and a recovery drive device is provided at the other end, the limiting plate is in contact with the first row of forming components, and the recovery drive device is respectively connected to the last row of forming components and the base.

[0007] Preferably, the forming assembly includes a support frame and a movable rod, the upper end of the support frame is slidably connected to the spring drive device, and the lower end is fixedly connected to the base, the upper end of the movable rod is connected to a movable block, and the lower end passes through the spring drive device and is inserted into the support frame.

[0008] Preferably, the surface of the movable rod is provided with serrations, the upper end of the support frame is provided with a first slide groove, the lower end portion of the spring driving device is embedded in the first slide groove, and the spring driving device includes two parallel spring fixing plates, one end of the two spring fixing plates is connected by a spring stopper, a pair of openings opposite to each other are correspondingly opened in the middle, and a through hole is correspondingly opened at the other end, and both ends of the serrated block are respectively embedded in the slots, and serrations are provided on the end surface of the serrated block away from the spring stopper, the movable rod passes through between the through hole and the serrated block and is inserted into the support frame, and the serrations on the serrated block are meshed with the serrations on the surface of the movable rod, and a spring is provided between the spring stopper and the serrated block, the spring is in a compressed state, and both ends are respectively in contact with the spring stopper and the serrated block.

[0009] Preferably, the base is in the shape of an open-lid box, a protruding block is arranged on the bottom surface of the base, a groove matching the protruding block is arranged at the lower end of the support frame, and the support frame is sleeved on the protruding block through the groove in a one-to-one correspondence.

[0010] Preferably, the limit plate is L-shaped, the horizontal plate of the limit plate is fixedly connected to the base, the vertical plate contacts the spring stopper of the first row of spring driving devices, the spring stopper of the rear row of forming components contacts one end of the spring fixing plate of the front row of forming components provided with a perforation, and the spring fixing plate of the last row of forming components is connected to the recovery driving device through the perforation.

[0011] Preferably, the recovery drive device includes a driving mechanism and a connecting rod. After the connecting rod passes through the through holes of the last row of forming components in sequence, the two ends are slidingly connected to the first fixed plate through the second sliding groove on the upper end of the first fixed plate, and the lower ends of the two first fixed plates are fixedly connected to the two sides of the base, and the driving mechanism is fixedly connected to the middle part of the connecting rod and the base.

[0012] Preferably, the driving mechanism includes a crank, a pressure plate and a second fixed plate, the second fixed plate is connected to the base, a guide rod integral with the second fixed plate is provided at the upper end, one end of the pressure plate is sleeved on the guide rod, one end of the crank is connected to the middle part of the connecting rod, and the other end is hinged to one end of the pressure plate sleeved on the guide rod.

[0013] Preferably, the shape of the movable block matches the honeycomb shape and is hinged to the upper end of the movable rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When processing the second curved surface of the curved honeycomb, the utility model uses a curved surface forming module to follow the first curved surface, which can quickly provide a processing positioning reference for the second curved surface of the honeycomb, thereby greatly improving the processing efficiency and avoiding the use of special processing tools.

[0016] (2) The movable blocks in the curved surface forming module of the utility model are connected to the movable rods by means of hinged connection, which improves the degree of freedom of the single movable block, thereby making the curved surface formed by the tooling more diverse and greatly expanding the scope of application of the tooling.

[0017] (3) In the curved surface forming module of the utility model, the movable rod and the serrated block are engaged through serrations, and the elastic force provided by the spring ensures that the movable rod will only drop when subjected to a downward force. When no force is applied, the movable rod is locked, thereby ensuring the controllability of the conformable curved surface.

[0018] (4) In the utility model, after the honeycomb curved surface processing is completed, by pressing the pressure plate in the driving mechanism, the spring driving device moves in the horizontal direction, thereby separating the sawtooth block from the movable rod, and manually and quickly restoring the curved surface forming module to its original position for secondary use, which can effectively improve the utilization rate of the tooling and greatly save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the modular tooling of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the base of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the molding component of the utility model;

[0023] Figure 4 It is a cross-sectional view of the molding component of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the spring drive device of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the recovery drive device of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the limit plate of the utility model;

[0027] Figure markings: 1. base, 101. protruding block, 2. molding assembly, 201. support frame, 2011. groove, 202. spring drive device, 2021. spring fixing plate, 2022. spring stopper, 2023. serrated block, 2024. spring, 2025. perforation, 203. movable rod, 204. movable block, 205. spherical structure, 3. limit plate, 4. recovery drive device, 401. drive mechanism, 4011. crank, 4012. pressure plate, 4013. second fixed plate, 4014. guide rod, 402. connecting rod, 403. first fixed plate, 404. second slide groove. DETAILED DESCRIPTION

[0028] The implementation scheme of the utility model will be described in detail below with reference to examples, but those skilled in the art will understand that the following examples are only used to illustrate the utility model and should not be regarded as limiting the scope of the utility model.

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] The following description sets forth specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] refer to Figure 1 The present embodiment provides a modular tooling for curved honeycomb processing, including a base 1, on which a curved surface forming module is arranged, and one end of the base 1 is provided with a limiting plate 3 for limiting the curved surface forming module, the limiting plate 3 is in contact with one end of the curved surface forming module, and the other end is provided with a recovery drive device 4, the recovery drive device 4 is used to restore the curved surface forming module to an initial state, and the recovery drive device 4 is respectively connected to the other end of the curved surface forming module and the base 1.

[0032] When processing the second curved surface of the curved honeycomb in this embodiment, by using the curved surface forming module to follow the first curved surface, the surface to be processed can be made horizontal, and the processing positioning reference of the second curved surface of the honeycomb can be quickly provided, so that the surface to be processed can be conveniently processed into the second curved surface, thereby greatly improving the processing efficiency and avoiding the use of special processing tooling. The method of use of this embodiment specifically includes the following steps:

[0033] Step 1: Complete the processing of the first curved surface of the honeycomb according to the original honeycomb benchmark;

[0034] Step 2: Install the curved surface forming module on the base 1, and install the limiting plate 3 at one end of the base 1 to block the curved surface forming module;

[0035] Step 3: Place the honeycomb with the first curved surface processed on the upper end of the curved surface forming module, with the first curved surface of the honeycomb at the lower end and the surface to be processed at the upper end;

[0036] Step 4: A downward force is applied to the honeycomb surface to be processed, and the shape of the upper end surface of the curved surface forming module changes with the shape of the first curved surface until the honeycomb surface to be processed is horizontal;

[0037] Step 5: Process the second curved surface of the surface to be processed;

[0038] Step 6: After the processing of the second curved surface is completed, the honeycomb is removed from the curved surface forming module, and the curved surface forming module is reset through the limit plate 3 and the recovery drive device 4 for next use.

[0039] refer to Figures 1 to 4 Specifically, the curved surface forming module is composed of M×N array-type forming components 2, where M≥2, N≥2, and the forming component 2 includes a support frame 201 and a movable rod 203. The upper end of the support frame 201 is slidably connected to the spring driving device 202, and the lower end is fixedly connected to the base 1. The upper end of the movable rod 203 is connected to a movable block 204, and the lower end passes through the spring driving device 202 and is inserted into the support frame 201, and can slide up and down relative to the support frame 201. The shape of the movable block 204 is preferably adapted to the honeycomb shape and is hinged to the upper end of the movable rod. A spherical structure 205 is provided on the upper end of the movable rod 204, and the bottom of the movable block 204 is hinged to the movable rod 204 through the spherical structure 205, which can improve the single The freedom of the movable block 204 makes the tooling forming curved surface diverse, which greatly expands the application scope of the tooling. The spring drive device 202 of the first row of forming components 2 in the curved surface forming module is in contact with the limit plate 3, the spring drive device 202 of the middle rear row of forming components 2 is in contact with the spring device 202 of the previous row of forming components 2, and the spring drive device 202 of the last row of forming components 2 is connected to the recovery drive device 4. The base 1 is preferably in the shape of an open-lid box body, and a protruding block 101 is arranged on the bottom surface of the base 1, and a groove 2011 matching the protruding block 101 is arranged at the lower end of the support frame 201, and the groove 2011 of the support frame 201 is correspondingly sleeved on the protruding block 101.

[0040] In this embodiment, the spring driving device 202 can position the movable rod 203 during the downward movement of the movable rod 203. A certain downward force is applied to the upper end of the movable rod 203, and the movable rod 203 moves downward. After the force applied to the upper end of the movable rod 203 stops, the movable rod 203 is positioned under the action of the spring driving device 202 and does not move, thereby ensuring the controllability of the conformal curved surface. The spring driving device 202 of the first column of the forming assembly 2 contacts the limiting plate 3 to prevent the first column of the spring driving device 202 from moving as a whole. Thereafter, the spring driving device 202 of the previous column plays a limiting role on the spring driving device 202 of the next column. When the second curved surface of the honeycomb is processed:

[0041] Insert the forming components 2 one by one into the protruding blocks 101 on the bottom surface of the base 1, and install the limiting plate 3 on the base 1 so that the limiting plate contacts the spring driving device of the first row of forming components;

[0042] Place the honeycomb with the first curved surface processed on the upper end of the curved surface forming module, and the honeycomb on the first curved surface of the honeycomb is sleeved on the movable block 204, with the surface to be processed at the upper end;

[0043] When a downward force is applied to the honeycomb surface to be processed, the heights of all the movable rods 203 change with the shape of the first curved surface until the honeycomb surface to be processed is horizontal. At this time, under the action of the spring driving device 202, the heights of the movable rods 203 are fixed respectively, and the upper end surface shape of the entire curved surface forming module corresponds to the shape of the first curved surface;

[0044] After the horizontal surface to be processed is processed, the honeycomb is removed from the curved surface forming module, the limit plate 3 is removed, the spring drive device 202 is pushed by the recovery drive device 4, the force between the spring drive device 202 and the movable rod 203 is released, and each movable rod 203 is manually taken out, the recovery drive device 4 is manually reset, the spring drive device is manually reset, the limit plate 3 is installed, and the lower ends of the movable rods 203 are manually passed through the spring drive device 202 and inserted into the support frame 201 one by one for next use, which effectively improves the utilization rate of the tooling and greatly saves production costs.

[0045] refer to Figures 1 to 5 and Figure 7Specifically, the surface of the movable rod 203 is provided with saw teeth, the upper end of the support frame 201 is provided with a first slide groove, the lower end portion of the spring driving device 202 is embedded in the first slide groove, and the spring driving device 202 includes two parallel spring fixing plates 2021, one end of the two spring fixing plates 2021 is connected by a spring stopper 2022, a pair of openings facing each other are correspondingly opened in the middle, and a through hole 2025 is correspondingly opened at the other end, and the two ends of the sawtooth block 2023 are respectively embedded in the slots, and the length of the slot is slightly larger than the thickness of the sawtooth block 2023. The end surface of the sawtooth block 2023 away from the spring stopper 2022 is provided with saw teeth, and the movable rod 203 passes between the through hole 2025 and the sawtooth block 2023, and the saw teeth on the sawtooth block 2023 are on the surface of the movable rod 203 The serrations on the surface are meshed with each other, and there is a spacing between the movable rod 203 and the through hole 2025 along the axial direction of the spring. A spring 2024 is arranged between the spring stop block 2022 and the serrated block 2023. The spring 2024 is in a compressed state and its two ends are respectively in contact with the spring stop block 2022 and the serrated block 2023. The limit plate 3 is preferably L-shaped, and the horizontal plate of the limit plate 3 is fixedly connected to the base 1, and the vertical plate is in contact with the spring stop block 2022 of the first column of spring driving devices 202. The spring stop block 2022 of the middle rear column of forming components 2 is in contact with one end of the spring fixing plate 2021 of the previous column of forming components 2 provided with a through hole 2025. The spring fixing plate 2021 of the last column of forming components 2 is connected to the recovery driving device 4 through the through hole 2025, and the spring stop block 2022 of the first column of forming components 2 is located at the outer end.

[0046] In this embodiment, when a certain downward force is applied to the honeycomb surface to be processed, the saw teeth of the movable rod 203 are meshed with the saw teeth on the sawtooth block 2023, and the movable rod 203 pushes the sawtooth block 2023 to move horizontally in the slot. When the movable rod 203 moves downward and stops applying the downward force to the honeycomb surface to be processed, the sawtooth block is reset under the action of the elastic force of the spring 2024, and the movable rod 203 is positioned;

[0047] After the second curved surface processing of the honeycomb to be processed is completed, the limit plate 3 is removed, and the last row of spring fixing plates 2021 is pushed to move in the direction of the first row of spring fixing plates 2021 through the recovery drive device 4. During the movement of the spring fixing plates 2021, the card slot will drive the serrated block 2023 to move. Since the movable rod 203 is inserted into the connecting piece, it will not move, so that the movable rod 203 and the serrated block 2023 are no longer in contact. At the same time, the spring fixing plates 2021 of the rear row push the spring fixing plates 2021 of the front row, so that the movable rods 203 of all molding components are no longer in contact with the serrated block 2023. At this time, after manually pulling out all the movable rods 203, manually reset the recovery drive device 4, manually reset all the spring fixing plates 2021, install the limit plate 3, and then insert the movable rods 203 into the support frame 201 one by one, and the sawteeth of the movable rods 203 engage with the sawteeth of the sawtooth block 2023.

[0048] refer to Figure 6 Specifically, the recovery drive device 4 includes a driving mechanism 401 and a connecting rod 402. The driving mechanism 401 includes a crank 4011, a pressure plate 4012 and a second fixed plate 4013. After the connecting rod 402 passes through the through holes 2025 of the last row of forming components 2 in sequence, both ends are slidably connected to the upper end of the first fixed plate 403 through the second slide groove 404 respectively. The lower ends of the two first fixed plates 403 are respectively fixedly connected to the two sides of the base 1. The second fixed plate 4013 is connected to the base 1. A guide rod 4014 is provided on the upper end of the second fixed plate 4013, one end of the pressure plate 4012 is sleeved on the guide rod 4014, one end of the crank 4011 is connected to the middle part of the connecting rod 402, and the other end is hinged to one end of the pressure plate 4012 sleeved on the guide rod 4014.

[0049] In this embodiment, after the second curved surface processing of the honeycomb surface to be processed is completed, the limit plate 3 is removed and a downward force is applied to the pressure plate 4012. At this time, the connecting rod 402 moves horizontally, pushing the last row of spring fixing plates 2021 to move toward the first row of spring fixing plates 2021. After the movable rod 203 is no longer in contact with the serrated block 2023, the movable rod is pulled out and the spring fixing plate 2021 is manually reset.

[0050] In the above embodiment, a limit platform can also be set on the guide rod 4014, and one end of the pressure plate 4012 sleeved on the guide rod 4014 is located below the limit platform. To reset the last row of spring drive devices 202, it is only necessary to lift the pressure plate 4012. When the upper surface of the pressure plate 4012 contacts the lower surface of the limit platform, the last row of spring fixing plates 2021 are reset, that is, the last row of spring drive devices 202 are reset, which can speed up the resetting speed of the spring fixing plates.

[0051] Although the utility model has been described in detail in this specification with general descriptions and specific implementation schemes, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model based on the utility model. Therefore, these modifications or improvements made without departing from the utility model are within the scope of protection claimed by the utility model.

Claims

1. A modular tool for curved honeycomb processing, characterized in that: It comprises a base (1), on which a curved surface forming module is arranged, and the curved surface forming module is composed of M×N array-type forming components (2), wherein M≥2, N≥2; A limiting plate (3) for limiting the curved surface forming module is provided at one end of the base (1), and a recovery drive device (4) is provided at the other end; the limiting plate (3) is in contact with the first row of forming assemblies (2), and the recovery drive device (4) is respectively connected to the last row of forming assemblies (2) and the base (1); The molding assembly (2) comprises a support frame (201) and a movable rod (203); the upper end of the support frame (201) is slidably connected to the spring drive device (202), and the lower end is fixedly connected to the base (1); the upper end of the movable rod (203) is connected to a movable block (204), and the lower end passes through the spring drive device (202) and is inserted into the support frame (201).

2. A modular tooling for curved honeycomb processing according to claim 1, characterized in that: The surface of the movable rod (203) is provided with saw teeth, the upper end of the support frame (201) is provided with a first slide groove, the lower end portion of the spring driving device (202) is embedded in the first slide groove, the spring driving device (202) comprises two parallel spring fixing plates (2021), one end of the two spring fixing plates (2021) is connected by a spring stopper (2022), a pair of openings facing each other are correspondingly provided in the middle, and a through hole (2025) is correspondingly provided at the other end, the two ends of the sawtooth block (2023) are respectively embedded in the slots, and the sawtooth block (2023) is provided with a plurality of holes. The end surface of the block (2023) away from the spring stopper (2022) is provided with saw teeth, the movable rod (203) passes through between the through hole (2025) and the sawtooth block (2023) and is inserted into the support frame (201), and the saw teeth on the sawtooth block (2023) are meshed with the saw teeth on the surface of the movable rod (203), a spring (2024) is provided between the spring stopper (2022) and the sawtooth block (2023), the spring (2024) is in a compressed state, and the two ends of the spring (2024) are respectively in contact with the spring stopper (2022) and the sawtooth block (2023).

3. A modular tooling for curved honeycomb processing according to claim 2, characterized in that: The base (1) is in the shape of an open-lid box body, a protruding block (101) is arranged on the bottom surface of the base (1), a groove (2011) matching the protruding block (101) is arranged at the lower end of the support frame (201), and the support frame (201) is sleeved on the protruding block (101) in a one-to-one correspondence through the groove (2011).

4. A modular tooling for curved honeycomb processing according to claim 2, characterized in that: The limit plate (3) is L-shaped, the horizontal plate of the limit plate (3) is fixedly connected to the base (1), the vertical plate contacts the spring stopper (2022) of the first row of spring drive devices (202), the spring stopper (2022) of the next row of forming components (2) contacts one end of the spring fixing plate (2021) of the previous row of forming components (2) provided with a through hole (2025), and the spring fixing plate (2021) of the last row of forming components (2) is connected to the recovery drive device (4) through the through hole (2025).

5. The modular tooling for curved honeycomb processing according to claim 4, characterized in that: The recovery drive device (4) comprises a drive mechanism (401) and a connecting rod (402). After the connecting rod (402) passes through the through holes (2025) of the last row of forming components (2) in sequence, both ends are slidably connected to the first fixed plate (403) through the second sliding groove (404) at the upper end of the first fixed plate (403). The lower ends of the two first fixed plates (403) are fixedly connected to the two sides of the base (1) respectively. The drive mechanism (401) is fixedly connected to the middle part of the connecting rod (402) and the base (1) respectively.

6. A modular tooling for curved honeycomb processing according to claim 5, characterized in that: The driving mechanism (401) comprises a crank (4011), a pressure plate (4012) and a second fixed plate (4013); the second fixed plate (4013) is connected to the base (1); a guide rod (4014) is provided at the upper end of the second fixed plate (4013) and is integral with the second fixed plate (4013); one end of the pressure plate (4012) is sleeved on the guide rod (4014); one end of the crank (4011) is connected to the middle part of the connecting rod (402); and the other end is hinged to one end of the pressure plate (4012) sleeved on the guide rod (4014).

7. The modular tooling for curved honeycomb processing according to claim 1, characterized in that: The shape of the movable block (204) matches the shape of a honeycomb and is hinged to the upper end of the movable rod (203).

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