Partitioned Adsorption Laying Mechanism and Patch Repair System for Composite Material Patching and Repair

Abstract

A partitioned adsorption and application mechanism for patching and repairing composite materials includes a support plate and adsorption monomers. M adsorption monomers are evenly distributed on one side of the support plate. The adsorption monomers are arranged in N ring-shaped adsorption units with gradually increasing radii from the center of the support plate to the periphery of the support plate. By dividing the M adsorption monomers into N adsorption units corresponding to prepreg patches of different sizes, one adsorption unit adsorbs a prepreg patch of a certain specification. This solves the problem of inaccurate control of the adsorption position of prepreg patches in the prior art and also provides a composite material patching and repair system.

Description

Technical Field

[0001] This invention relates to the field of composite material patching and repair technology, and in particular to a zoned adsorption and application mechanism and patching and repair system for composite material patching and repair. Background Technology

[0002] Composite material components are highly susceptible to various types of damage during service due to their own alternating loads and complex and changing environmental factors, which reduces the reliability and safety of the structure and seriously threatens service safety. When such damage occurs, it should be repaired quickly and effectively. Patching is the primary repair method for such composite material components; please refer to [link to relevant documentation]. Figure 1 The basic process involves first grinding the damaged area layer by layer, then laying prepreg patches layer by layer to match the shape of the ground area, and finally heating and curing. During the patching process, an adsorption mechanism is often used to pick up the prepreg patches and then press them onto the ground damaged area.

[0003] Chinese invention patent application number 201610666295.5 discloses a curved surface bonding device and method. The curved surface bonding device includes: a control module, a base, and a plurality of gripping arms protruding from the lower surface of the base. Each gripping arm is connected to the base at one end and has an adsorption module at the other end. The height of each gripping arm protruding from the lower surface of the base is adjustable. The control module is used to control the height of the plurality of gripping arms protruding from the base according to the curvature of the curved display panel, so that the curvature of the curved surface formed by the other end of the plurality of gripping arms matches the curvature of the curved display panel.

[0004] However, when the curved surface bonding device grasps the prepreg patch, because the area of ​​the prepreg patch is smaller than the area of ​​the multiple gripping arms convexly arranged, it is difficult for the prepreg patch to be adsorbed in the predetermined adsorption area of ​​the gripping arms. This results in the adsorption position not being accurately controlled, which is not conducive to accurately pressing the prepreg patch onto the damaged area. Summary of the Invention

[0005] In view of this, and to address the above-mentioned shortcomings, it is necessary to propose a zoned adsorption and application mechanism for composite material patching and repair.

[0006] It is also necessary to propose a composite material patching and repair system.

[0007] A partitioned adsorption and laying mechanism for patching and repairing composite materials includes a support plate and adsorption monomers. M adsorption monomers are evenly distributed on one side of the support plate. The adsorption monomers are arranged in N ring-shaped adsorption units with gradually increasing radii from the center of the support plate to the periphery of the support plate.

[0008] Preferably, the adsorbent monomer is a conical airbag, the adsorbent monomer is hollow, the hollow part of the adsorbent monomer is a first cavity, an adsorption hole communicating with the first cavity is provided at the free end of the adsorbent monomer, the side wall of the adsorbent monomer is hollow, the hollow part of the side wall of the adsorbent monomer is a second cavity, the first cavities of each adsorbent monomer in any adsorption unit are connected in series, and the second cavities of each adsorbent monomer in any adsorption unit are connected in series.

[0009] Preferably, the laying mechanism further includes unfolding components, at least three of which are evenly distributed around the center of the support plate. The support plate has engaging slots corresponding to the number of unfolding components. Each unfolding component includes a sliding plate and engaging blocks. One end of the engaging block is connected to the sliding plate, and the other end has a hook-shaped portion whose shape matches the shape of the engaging slot. The sliding plate moves away from the support plate radially, the engaging block engages into the engaging slot, the sliding plate moves closer to the support plate radially, and the engaging block disengages from the engaging slot.

[0010] Preferably, the unfolding assembly further includes a slide rail and a slider, one end of the slide rail being connected to the center of the support plate, the other end of the slide rail extending radially along the support plate, and the slider being disposed on the slide plate, the slider slidingly engaging with the slide rail.

[0011] Preferably, the unfolding assembly further includes a rotating frame, a first connecting rod, and a second connecting rod. The rotating frame is located at the center of the support plate and is rotatably connected to the support plate. One end of the first connecting rod is rotatably connected to the support plate, and the other end of the first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the slider.

[0012] Preferably, the unfolding assembly further includes a ball bearing, and a groove is provided on the slide rail. The groove extends along the length of the slide rail and is S-shaped. The ball bearing is mounted on the slider and is rotatably connected to the slider. The ball bearing rolls in cooperation with the groove.

[0013] Preferably, the laying mechanism further includes a deformable body, which is an airbag, and the lower surface of the support plate is connected to the upper surface of the deformable body. The lower surface of the deformable body is provided with M evenly distributed adsorption monomers.

[0014] A composite material patching and repair system includes a partitioned adsorption and application mechanism for composite material patching and repair, and also includes a first telescopic member, a second telescopic member, and a middle frame. The telescopic end of the first telescopic member is connected to a slide rail, the fixed end of the first telescopic member is connected to the telescopic end of the second telescopic member, and the fixed end of the second telescopic member is connected to the right side of the middle frame.

[0015] Preferably, the composite material patching and repair system further includes a composite material patching and repair spreading mechanism, which is used to spread prepreg patches. The composite material patching and repair spreading mechanism can be extended or shortened and is located on the left side of the middle frame.

[0016] Preferably, the composite material patching and repair system further includes a third telescopic component, a fourth telescopic component, and a cutting mechanism for composite material patching and repair. The cutting mechanism for composite material patching and repair is used for cutting prepreg patches. The telescopic end of the third telescopic component is connected to the cutting mechanism for composite material patching and repair. The fixed end of the third telescopic component is connected to the telescopic end of the fourth telescopic component. The fixed end of the fourth telescopic component is connected to the left side of the middle frame.

[0017] The beneficial effects of this invention are: by dividing M adsorption monomers into N adsorption units corresponding to prepreg patches of different sizes, and with each adsorption unit corresponding to adsorbing a prepreg patch of a certain specification, the problem of inaccurate control of the adsorption position of prepreg patches in the prior art is solved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of patching composite material components.

[0019] Figure 2 A bottom view of an in-situ conformal paving mechanism for patching and repairing composite materials.

[0020] Figure 3 The diagram shows the adsorption units, where A is adsorption unit 1, B is adsorption unit 2, C is adsorption unit 3, D is adsorption unit 4, and E is adsorption unit 5.

[0021] Figure 4 This is a cross-sectional view of the adsorbed monomer.

[0022] Figure 5 An isometric view of the unfolded component.

[0023] Figure 6 This is an isometric view of the slider and the slide plate.

[0024] Figure 7 This is a partial isometric view of the slide rail.

[0025] Figure 8 This is an isometric view of the locking block and locking groove.

[0026] Figure 9 This is a schematic diagram of an in-situ conformal paving mechanism for patching and repairing composite materials, in which the airbag is in a deflated state.

[0027] Figure 10This is a schematic diagram of an in-situ conformal paving mechanism for patch repair of composite materials, in which the airbag is in an inflated state.

[0028] Figure 11 This is the first operational state of the composite material patching and repair system.

[0029] Figure 12 This is the second usage state of the composite material patch repair system.

[0030] Figure 13 This is the third usage state of the composite material patching and repair system.

[0031] Figure 14 This is the fourth operational state of the composite material patching and repair system.

[0032] Figure 15 This is the fifth operational state of the composite material patching and repair system.

[0033] Figure 16 This is the sixth operational state of the composite material patching and repair system.

[0034] In the figure: composite material component 10, prepreg patch 20, laying mechanism 30, support plate 31, locking groove 311, deformable body 32, adsorption unit 33, unfolding assembly 34, slide plate 341, locking block 342, slide rail 343, roller groove 3431, slider 344, rotating frame 345, first connecting rod 346, second connecting rod 347, ball bearing 348, first telescopic component 40, second telescopic component 50, intermediate frame 60, laying mechanism 70, third telescopic component 80, fourth telescopic component 90, cutting mechanism 100. Implementation

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] See Figure 2 and Figure 3 This invention provides a partitioned adsorption and laying mechanism 30 for patching and repairing composite materials, including a support plate 31 and adsorption monomers 33. M evenly distributed adsorption monomers 33 are provided on one side of the support plate 31. The adsorption monomers 33 are arranged in N ring-shaped adsorption units with gradually increasing radius from the center of the support plate 31 to the periphery of the support plate 31.

[0037] The beneficial effect of the present invention is that by dividing the M adsorption monomers 33 into N adsorption units corresponding to prepreg patches 20 of different sizes, and one adsorption unit adsorbs a prepreg patch 20 of a certain specification, the problem of the inability to accurately control the adsorption position of the prepreg patch 20 in the prior art is solved.

[0038] See Figure 4 Furthermore, the adsorbent monomer 33 is a conical air bladder, the adsorbent monomer 33 is hollow, the hollow part of the adsorbent monomer 33 is a first cavity, and an adsorption hole communicating with the first cavity is provided at the free end of the adsorbent monomer 33. The side wall of the adsorbent monomer 33 is hollow, and the hollow part of the side wall of the adsorbent monomer 33 is a second cavity. The first cavities of each adsorbent monomer 33 in any adsorption unit are connected in series, and the second cavities of each adsorbent monomer 33 in any adsorption unit are connected in series.

[0039] See Figure 2 and Figure 3 Taking M=69 adsorbent monomers 33 and N=5 adsorption units as an example, the 1 adsorbent monomer 33 located in the center is adsorption unit 1#, 8 adsorbent monomers 33 are adsorption unit 2#, 16 adsorbent monomers 33 are adsorption unit 3#, 24 adsorbent monomers 33 are adsorption unit 4#, and 20 adsorbent monomers 33 are adsorption unit 5#. The four types of prepreg patches 20, from smallest to largest, are prepreg patch 20 (a), prepreg patch 20 (b), prepreg patch 20 (c), and prepreg patch 20 (d). Adsorption units 1 and 2 are combined for adsorbing prepreg patch 20 (a); adsorption units 1, 2, and 3 are combined for adsorbing prepreg patch 20 (b); adsorption units 1, 2, 3, and 4 are combined for adsorbing prepreg patch 20 (c); and adsorption units 1, 2, 3, 4, and 5 are combined for adsorbing prepreg patch 20 (d). The height of the adsorbent monomer 33 can be selected as needed.

[0040] See Figure 5 and Figure 8 Furthermore, the laying mechanism 30 also includes unfolding components 34, with at least three unfolding components 34. The unfolding components 34 are evenly distributed around the center of the support plate 31. The support plate 31 is provided with engaging grooves 311 corresponding to the number of unfolding components 34. The unfolding components 34 include a sliding plate 341 and engaging blocks 342. One end of the engaging block 342 is connected to the sliding plate 341, and the other end of the engaging block 342 is provided with a hook-shaped part. The shape of the hook-shaped part matches the shape of the engaging groove 311. The sliding plate 341 moves away from the support plate 31 along the radial direction of the support plate 31, and the engaging block 342 engages into the engaging groove 311. The sliding plate 341 moves closer to the support plate 31 along the radial direction of the support plate 31, and the engaging block 342 disengages from the engaging groove 311.

[0041] In one embodiment, it is preferable that the diameter of the support plate 31 is smaller than the diameter of the deformable body 32, and it is preferable that there are four unfolding components 34. The rotating frame 345 is driven to rotate by a drive mechanism, which is a conventional structure and will not be described in detail.

[0042] See Figure 5 Furthermore, the unfolding component 34 also includes a slide rail 343 and a slider 344. One end of the slide rail 343 is connected to the center of the support plate 31, and the other end of the slide rail 343 extends radially along the support plate 31. The slider 344 is disposed on the slide plate 341, and the slider 344 slides in cooperation with the slide rail 343.

[0043] See Figure 5 Furthermore, the unfolding assembly 34 also includes a rotating frame 345, a first connecting rod 346, and a second connecting rod 347. The rotating frame 345 is located at the center of the support plate 31 and is rotatably connected to the support plate 31. One end of the first connecting rod 346 is rotatably connected to the support plate 31, and the other end of the first connecting rod 346 is rotatably connected to one end of the second connecting rod 347. The other end of the second connecting rod 347 is rotatably connected to the slider 344.

[0044] See Figure 6 and Figure 7 Furthermore, the unfolding component 34 also includes a ball bearing 348. A groove 3431 is provided on the slide rail 343. The groove 3431 extends along the length of the slide rail 343 and is S-shaped. The ball bearing 348 is mounted on the slider 344. The ball bearing 348 is rotatably connected to the slider 344 and rolls with the groove 3431.

[0045] In the above embodiments, the support plate 31 and the slide plate 341 are improved by the cooperation of the locking block 342 and the locking groove 311, and the cooperation of the "S"-shaped rolling groove 3431 and the ball 348, which is beneficial to the stability of the passive deformation of the airbag.

[0046] See Figure 9 and Figure 10 Furthermore, the paving mechanism 30 also includes a deformable body 32, which is an airbag. The lower surface of the support plate 31 is connected to the upper surface of the deformable body 32, and the lower surface of the deformable body 32 is provided with M evenly distributed adsorption monomers 33.

[0047] In one embodiment, it is preferable that the end face of the support plate 31 is circular, and it is also preferable that the end face where the main airbag connects to the support plate 31 is circular. See [reference needed]. Figure 10 After the main airbag is inflated by the air pump, it is preferable that the longitudinal section is arc-shaped. The second cavity of any adsorption unit is inflated by a single air pump, and the first cavity of any adsorption unit is evacuated by a single air pump.

[0048] By inflating the airbag, it actively deforms to adapt to the curvature of the patched structure surface, thereby controlling the curvature of the lower surface of the airbag. During the conformal pressing process, the elastic deformation of the airbag itself is utilized to passively deform it so that it conforms to the shape of the prepreg patch 20 in the damaged patched area, ensuring the laying accuracy and quality of the prepreg patch 20.

[0049] See Figure 11 and Figure 16 This invention provides a composite material patching and repair system, including a partitioned adsorption and laying mechanism 30 for composite material patching and repair, and also including a first telescopic member 40, a second telescopic member 50, and a middle frame 60. The telescopic end of the first telescopic member 40 is connected to a slide rail 343, the fixed end of the first telescopic member 40 is connected to the telescopic end of the second telescopic member 50, and the fixed end of the second telescopic member 50 is connected to the right side of the middle frame 60.

[0050] See Figure 11 and Figure 16 Furthermore, the composite material patch repair system also includes a composite material patch repair spreading mechanism 70, which is used to spread the prepreg patch 20. The composite material patch repair spreading mechanism 70 can be extended or shortened, and is located on the left side of the intermediate frame 60.

[0051] See Figure 11 and Figure 16 Furthermore, the composite material patch repair system also includes a third telescopic member 80, a fourth telescopic member 90, and a composite material patch repair cutting mechanism 100. The composite material patch repair cutting mechanism 100 is used for cutting the prepreg patch 20. The telescopic end of the third telescopic member 80 is connected to the composite material patch repair cutting mechanism 100, the fixed end of the third telescopic member 80 is connected to the telescopic end of the fourth telescopic member 90, and the fixed end of the fourth telescopic member 90 is connected to the left side of the intermediate frame 60.

[0052] In one embodiment, it is preferable that the composite material patching and repair cutting mechanism 100 and the composite material patching and repair partitioned adsorption and laying mechanism 30 are at the same horizontal height, and it is preferable that the composite material patching and repair spreading mechanism 70 is located below the composite material patching and repair cutting mechanism 100. The composite material patching and repair cutting mechanism 100 and the composite material patching and repair spreading mechanism 70 can be implemented using mechanisms with equivalent functions in the prior art, and this application does not impose any restrictions.

[0053] In one embodiment, the first telescopic member 40, the second telescopic member 50, the third telescopic member 80, and the fourth telescopic member 90 are conventional structures, such as ball splines and scissor push rods, which will not be described in detail here.

[0054] See Figures 11 to 16Taking a wind turbine blade as an example, the composite material patching and repair system is described in section 10.

[0055] The intermediate frame 60 is fixed to the composite material component 10 (wind turbine blade) using suction cups;

[0056] The composite material patching and repair spreading mechanism 70 extends, and the prepreg patch 20 is spread out on the composite material patching and repair spreading mechanism 70;

[0057] Activate the third telescopic component 80 and the fourth telescopic component 90, adjust the position of the composite material patching and repair cutting mechanism 100, cut the prepreg patch 20 of the required size, and then return the composite material patching and repair cutting mechanism 100 to its original position.

[0058] Start the first telescopic component 40, the second telescopic component 50 and the drive mechanism, the composite material patching repair partition adsorption and laying mechanism 30 opens, select the adsorption unit with the same size as the aforementioned prepreg patch 20 to work, adsorb the aforementioned prepreg patch 20.

[0059] The composite material patching and repair spreading mechanism 70 is retracted, the composite material patching and repair partition adsorption spreading mechanism 30 continues to descend and lays the prepreg patch 20, the airbag works, and the prepreg patch 20 is laid out according to the shape due to the active deformation and passive deformation of the airbag.

[0060] The 30-section adsorption and laying mechanism for composite material patching and repair retracts and returns to its original position;

[0061] Repeat the above.

[0062] The steps in the method of this invention can be adjusted, combined, or deleted according to actual needs.

[0063] The modules or units in the device of this invention can be merged, divided, or deleted according to actual needs.

[0064] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A partitioned adsorption and application mechanism for patching and repairing composite materials, characterized in that: The system includes a support plate and adsorption cells. M adsorption cells are evenly distributed on one side of the support plate. The adsorption cells are arranged in N ring-shaped adsorption units with gradually increasing radii from the center of the support plate outwards. Each adsorption cell is a conical airbag and is hollow. The hollow portion of each adsorption cell forms a first cavity. An adsorption hole communicating with the first cavity is located at the free end of each adsorption cell. The sidewalls of each adsorption cell are hollow, and the hollow portions of the sidewalls form second cavities. The first cavities of all adsorption cells in any adsorption unit are connected in series, as are the second cavities of all adsorption cells in any adsorption unit. The laying mechanism also includes a deformable body, which is an airbag. The lower surface of the support plate is connected to the upper surface of the deformable body. The lower surface of the deformable body is provided with M evenly distributed adsorption monomers. The laying mechanism also includes an unfolding assembly. There are at least three unfolding assemblies. The unfolding assemblies are evenly distributed around the center of the support plate. The support plate is provided with a locking groove corresponding to the number of unfolding assemblies. The unfolding assembly includes a sliding plate and a locking block. One end of the locking block is connected to the sliding plate, and the other end of the locking block is provided with a hook-shaped part. The shape of the hook-shaped part matches the shape of the locking groove. The sliding plate moves away from the support plate radially. The locking block is engaged in the locking groove. The sliding plate moves closer to the support plate radially. The locking block is disengaged from the locking groove.

2. The zonal adsorption and application mechanism for composite material patching and repair as described in claim 1, characterized in that: The unfolding assembly also includes a slide rail and a slider. One end of the slide rail is connected to the center of the support plate, and the other end of the slide rail extends radially along the support plate. The slider is mounted on the slide plate and slides in cooperation with the slide rail.

3. The zonal adsorption and application mechanism for composite material patching and repair as described in claim 2, characterized in that: The unfolding assembly also includes a rotating frame, a first connecting rod, and a second connecting rod. The rotating frame is located at the center of the support plate and is rotatably connected to the support plate. One end of the first connecting rod is rotatably connected to the support plate, and the other end of the first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the slider.

4. The zonal adsorption and application mechanism for composite material patching and repair as described in claim 3, characterized in that: The unfolding assembly also includes a ball bearing, and a groove is provided on the slide rail. The groove extends along the length of the slide rail and is S-shaped. The ball bearing is mounted on the slider and is rotatably connected to the slider. The ball bearing rolls in cooperation with the groove.

5. A composite material patching and repair system, characterized in that: The composite material patching and repair partition adsorption and laying mechanism according to claim 4 further includes a first telescopic member, a second telescopic member, and an intermediate frame. The telescopic end of the first telescopic member is connected to a slide rail, the fixed end of the first telescopic member is connected to the telescopic end of the second telescopic member, and the fixed end of the second telescopic member is connected to the right side of the intermediate frame.

6. The composite material patching and repair system as described in claim 5, characterized in that: The composite material patching and repair system also includes a composite material patching and repair spreading mechanism, which is used to spread prepreg patches. The composite material patching and repair spreading mechanism can be extended or shortened and is located on the left side of the middle frame.

7. The composite material patching and repair system as described in claim 5, characterized in that: The composite material patching and repair system also includes a third telescopic component, a fourth telescopic component, and a cutting mechanism for composite material patching and repair. The cutting mechanism for composite material patching and repair is used for cutting prepreg patches. The telescopic end of the third telescopic component is connected to the cutting mechanism for composite material patching and repair. The fixed end of the third telescopic component is connected to the telescopic end of the fourth telescopic component. The fixed end of the fourth telescopic component is connected to the left side of the middle frame.

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