Auxiliary tool for repairing composite product

By designing an auxiliary tool for repairing composite material products that includes Z-axis, Y-axis, X-axis slide rails and drive modules, the problem of precise grinding in three-dimensional space was solved, enabling efficient and safe grinding and surface smoothing of composite material products.

CN224011968UActive Publication Date: 2026-03-20CHANGSHA AVIATION VOCATIONAL & TECH COLLEGE (AIR FORCE AVIATION MAINTENANCE TECH COLLEGE)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing technologies make it difficult to precisely grind composite material products in three-dimensional space, especially for products with complex shapes such as aero-engine blades and satellite components, resulting in poor grinding effects that cannot meet high precision requirements.

Method used

A composite material product repair auxiliary tool was designed, comprising a frame, a moving component, a polishing motor, a rotating shaft, a polishing disc, and a controller. The polishing motor can move flexibly in three-dimensional space through Z-axis, Y-axis, and X-axis slide rails and a drive module. Combined with a protective plate, a sensing component, and a polishing liquid spraying system, the accuracy and safety of the polishing path are ensured.

Benefits of technology

It enables uniform and meticulous grinding of composite material products, improves grinding efficiency and accuracy, ensures operational safety, and enhances the smoothness and flatness of the product surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of composite material product repairing, in particular to an auxiliary tool for repairing a composite material product. The composite material product repairing auxiliary tool comprises a frame, a placing table, a moving assembly, a polishing motor, a rotating shaft, a polishing disc, a compression spring and a controller, the frame serves as a supporting structure of the whole device, the placing table is connected to the lower side in the frame, the moving assembly is arranged on the upper side in the frame, and the rotating shaft is arranged on the moving assembly. The polishing motor is installed on the moving assembly, and an output shaft of the polishing motor is connected with a rotating shaft. The moving assembly comprises sliding rails in the Z-axis direction, the Y-axis direction and the X-axis direction and a driving module, the polishing motor can drive the polishing disc to flexibly move in the three-dimensional space, the moving track is accurately set through the controller, the polishing disc can accurately reach the repaired part of a product to conduct grinding and polishing, a looping type complex polishing path and other complex polishing paths are achieved, the polishing precision and efficiency are improved, and the polishing efficiency is improved. And the repaired part of the product is uniformly and carefully treated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to composite material product repair technical field especially relates to a kind of composite material product repair auxiliary tools. BACKGROUND

[0002] In the repair and processing field of composite material products, polishing is the key link to ensure the surface quality and performance of products. With the development of modern industry, the precision and surface quality requirements of composite material products are increasing, especially in the aerospace, high-end electronic equipment and other industries.

[0003] In the past, the traditional composite material product polishing method has significant shortcomings. Common manual polishing method completely depends on the experience and operation skill of workers. This method may be able to barely cope with the products with simple shape and low repair requirements, but once it encounters composite material products with complex shape and variable curved surface, such as composite material blades of aircraft engines, workers are difficult to accurately control the polishing path to ensure that the entire surface can be uniformly and accurately polished.

[0004] Some early semi-automatic polishing equipment, although it reduces the labor intensity of workers to some extent, has great limitations in movement control. These devices can only realize simple one-dimensional or two-dimensional movement, such as polishing operation only along the straight line direction or in a plane. For the case of polishing products in three-dimensional space, they often cannot do anything. For example, for satellite composite material components with complex spatial structure, such equipment cannot accurately reach each part that needs to be polished, resulting in poor polishing effect and failing to meet the high precision requirements of products. SUMMARY

[0005] In order to overcome the above-mentioned shortcomings, the technical problem of the utility model is to provide a composite material product repair auxiliary tool.

[0006] The technical implementation scheme of the utility model is: a composite material product repair auxiliary tool, comprising a frame, a placement table, a moving assembly, a polishing motor, a rotating shaft, a polishing disc, a compression spring and a controller. The frame is the supporting structure of the entire device, and the placement table is connected to the lower side of the frame. The moving assembly is provided on the upper side of the frame. The polishing motor is installed on the moving assembly. The rotating shaft is connected to the output shaft of the polishing motor. The polishing disc is slidingly connected to the bottom of the rotating shaft. The compression spring is connected between the polishing disc and the inner part of the rotating shaft. The controller is installed on the right side of the frame. The polishing motor is electrically connected to the controller.

[0007] In a preferred embodiment of the utility model, mobile assembly includes Z axis slide rail, sliding block, L type connecting plate, Y axis slide rail, sliding block, X axis slide rail, sliding piece, first drive module, second drive module and third drive module, both sides wall on frame inside is connected with Z axis slide rail symmetrically, slidingly connected with sliding block on Z axis slide rail, two sliding blocks of same side are connected with L type connecting plate, third drive module is installed on the left and right side walls outside frame respectively, third drive module and L type connecting plate of same side realize power connection, Y axis slide rail is connected on the top of L type connecting plate, slidingly connected with sliding block between two Y axis slide rails, second drive module is assembled on L type connecting plate, second drive module and sliding block realize power connection, X axis slide rail is connected on the downside of sliding block, slidingly connected with sliding piece on X axis slide rail, polishing motor is installed on sliding piece, first drive module is assembled on sliding block, first drive module and sliding piece realize power connection, first drive module, second drive module and third drive module are electrically connected with controller.

[0008] In a preferred embodiment of the utility model, still include the fender, the rack and pinion, the fender is connected with the rack in the sliding mode on the front side of the lower part of the frame, the transparent window is arranged in the middle of the fender, the transparent window is used for facilitating the staff to observe the polishing condition of the internal product in the protection process, the rack is connected on the left and right sides of the rear part of the fender respectively, the rack is also connected on the bottom of L type connecting plate respectively, two racks of same side are oppositely arranged, the gear is rotatably connected on the left and right side walls of the front side of the lower part of the frame through the pivot respectively, two racks oppositely arranged are engaged with corresponding gear respectively.

[0009] In a preferred embodiment of the utility model, still include the polishing liquid spray pipe, the water pump and the induction assembly, the polishing liquid spray pipe in the U type is installed on the downside in the frame, and the spray head thereof faces the placing table, the water pump is installed on the rear side of the lower part of the frame, the liquid outlet end of the water pump is connected with the polishing liquid spray pipe, the liquid inlet end of the water pump is used for external connection container that stores the polishing liquid, the water pump is electrically connected with the controller, and the induction assembly is arranged in the frame.

[0010] In a preferred embodiment of the utility model, the induction assembly includes induction sheet and photoelectric sensor, the photoelectric sensor is connected on the left and right side walls on the downside in the frame, the induction sheet is connected on the front side of the bottom of two L type connecting plates respectively, the photoelectric sensor and the induction sheet are electrically connected, and the photoelectric sensor is electrically connected with the controller.

[0011] In a preferred embodiment of the utility model, still include the material storage liquid frame, the material storage liquid frame is connected on the bottom in the frame, which is located below the placing table.

[0012] Compared with the prior art, the utility model has the advantages of the following: 1, the mobile assembly contains the slide rail and drive module of Z axis, Y axis, X axis direction, can make the polishing motor drive polishing disc flexible movement in three -dimensional space, accurate setting track is passed to the controller, can let the polishing disc accurately reach the product repair part and polish, realize the polishing path such as the complex of the circle type, improve the accuracy and efficiency of polishing, ensure that the product repair place gets even, careful processing.

[0013] 2, the protection board is automatically raised when polishing disc carries out the grinding operation, and the polishing area is blocked, prevents others from approaching the product being ground, avoids the occurrence of accidental accidents, guarantees the safety of operating personnel and surrounding personnel.

[0014] 3, the water pump and the polishing liquid spray pipe are controlled through the induction assembly, and the polishing liquid is automatically sprayed when the polishing disc contacts and grinds the product, the grinding and polishing process of the product is assisted, the polishing effect is improved, and the product surface is smoother and smoother. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three -dimensional structure schematic view of the utility model.

[0016] Figure 2 It is the three -dimensional structure schematic view of the utility model protection board, rack and pinion and other components.

[0017] Figure 3 It is the three -dimensional structure schematic view of the utility model Z axis slide rail, slider and L type connecting plate and other components.

[0018] Figure 4 It is the plane structure schematic view of the utility model L type connecting plate, induction sheet and photoelectric sensor and other components.

[0019] Figure 5 It is the three -dimensional structure schematic view of the utility model rotating shaft, polishing disc and compression spring and other components.

[0020] Figure 6 It is the three -dimensional structure schematic view of the utility model polishing liquid spray pipe, water pump and controller and other components.

[0021] The labels of the components in the drawings are as follows: 1, frame, 101, placing table, 2, Z-axis slide rail, 3, sliding block, 4, L-shaped connecting plate, 5, Y-axis slide rail, 6, sliding block, 7, X-axis slide rail, 8, sliding member, 9, first driving module, 10, second driving module, 12, third driving module, 13, polishing motor, 14, rotating shaft, 15, polishing disc, 16, compression spring, 17, inductive sheet, 18, photoelectric sensor, 19, liquid storage frame, 20, protective plate, 21, rack, 22, gear, 23, polishing liquid spray pipe, 24, water pump, 25, controller. DETAILED DESCRIPTION

[0022] First of all, it should be pointed out that in the different described embodiments, the same components are provided with the same reference signs or the same component names, wherein the disclosure contained in the entire specification can be transferred to the same components with the same reference signs or the same component names in the sense. The selected position descriptions in the specification, such as upper, lower, lateral, etc., also refer to the directly described and shown drawings and are transferred to the new position in the sense when the position changes.

[0023] Embodiment: a composite material product repair auxiliary tool, as shown in Figures 1-5 The frame 1 is used as the support structure of the entire device, the placing table 101 is connected to the lower side inside the frame 1, and is used to place the composite material product to be polished, the moving assembly is arranged on the upper side inside the frame 1, the polishing motor 13 is installed on the moving assembly, the moving assembly can accurately control the movement path of the polishing motor 13, the rotating shaft 14 is connected to the output shaft of the polishing motor 13, the polishing disc 15 is slidably connected to the bottom of the rotating shaft 14, the compression spring 16 is connected between the polishing disc 15 and the inside of the rotating shaft 14, and the compression spring 16 is used to provide a buffer force when the polishing disc 15 contacts the product, so as to avoid causing excessive pressure damage to the product, the controller 25 is installed on the right side of the frame 1 through screws, and the polishing motor 13 is electrically connected with the controller 25.

[0024] As shown in Figures 1-4As shown, the moving assembly includes Z-axis slide rail 2, sliding block 3, L-shaped connecting plate 4, Y-axis slide rail 5, sliding block 6, X-axis slide rail 7, sliding piece 8, first driving module 9, second driving module 10 and third driving module 12, the left and right side walls of frame 1 are symmetrically connected with Z-axis slide rail 2, sliding block 3 is connected with Z-axis slide rail 2 in a sliding manner, L-shaped connecting plate 4 is connected between two sliding blocks 3 on the same side, third driving module 12 is installed on the left and right side walls of frame 1 outside through screws, third driving module 12 is power-connected with L-shaped connecting plate 4 on the same side, L-shaped connecting plate 4 can move up and down along Z-axis slide rail 2 through the driving of third driving module 12, Y-axis slide rail 5 is connected with the top of L-shaped connecting plate 4, sliding block 6 is connected between two Y-axis slide rails 5 in a sliding manner, second driving module 10 is assembled on L-shaped connecting plate 4, second driving module 10 is power-connected with sliding block 6, and sliding block 6 can move forward and backward along Y-axis slide rail 5 through the driving of second driving module 10, X-axis slide rail 7 is connected with the lower side of sliding block 6, sliding piece 8 is connected with X-axis slide rail 7 in a sliding manner, polishing motor 13 is installed on sliding piece 8, first driving module 9 is assembled on sliding block 6, first driving module 9 is power-connected with sliding piece 8, and sliding piece 8 can move left and right along X-axis slide rail 7 through the driving of first driving module 9, first driving module 9, second driving module 10 and third driving module 12 are electrically connected with controller 25, and the three driving modules can be accurately controlled through controller 25, so that the position adjustment of polishing motor 13 in three-dimensional space is realized.

[0025] When the repaired composite product needs to be polished, first place the repaired composite product on the placing table 101, and then set the running track of the moving assembly according to the shape, size of the product and the specific situation of the repaired part. The controller 25 controls the first driving module 9, the second driving module 10 and the third driving module 12 according to the set program. First, the controller 25 starts the second driving module 10, which drives the sliding block 6 to move along the Y-axis sliding rail 5 in the front-back direction. Since the X-axis sliding rail 7, the sliding piece 8, the polishing motor 13, the rotating shaft 14 and the polishing disc 15 are connected to the sliding block 6, these components will move synchronously with the sliding block 6 until the polishing disc 15 moves above the product. Then, the controller 25 starts the first driving module 9, which drives the sliding piece 8 to move along the X-axis sliding rail 7 in the left-right direction, so that the polishing disc 15 moves further above the product, ensuring that the position of the polishing disc 15 is accurately aligned with the part that needs to be polished. Subsequently, the controller 25 starts the third driving module 12, which drives the L-shaped connecting plate 4 and the sliding block 3 to move downward along the Z-axis sliding rail 2 until the polishing disc 15 contacts the surface of the product. During the contact process, the compression spring 16 plays a buffering role to avoid excessive impact force on the surface of the product, thereby protecting the product from damage. When the polishing disc 15 contacts the product, the controller 25 starts the polishing motor 13, and the output shaft of the polishing motor 13 rotates, driving the rotating shaft 14 connected thereto to rotate, and then driving the polishing disc 15 to rotate. The rotation of the polishing disc 15 realizes the polishing operation of the repaired part of the product. In this process, the controller 25 continuously controls the running of the first driving module 9 and the second driving module 10 according to the pre-set program, and continuously adjusts the position of the polishing disc 15 to realize the polishing operation in a circular manner, ensuring that the repaired part of the product is uniformly and carefully processed. After completing the polishing of the repaired part of the product, the controller 25 stops the rotation of the polishing disc 15 by turning off the polishing motor 13. Then, the polishing disc 15 is driven back to the initial position by the first driving module 9, the second driving module 10 and the third driving module 12, so as to perform the next polishing operation.

[0026] As shown in Figures 1-2 , it also includes a protective plate 20, a rack 21 and a gear 22. The lower front side of the frame 1 is connected with the protective plate 20 in a sliding manner. The middle part of the protective plate 20 is provided with a transparent window for facilitating the observation of the polishing of the internal product during the protection process. The rear part of the protective plate 20 is respectively welded with the rack 21 on the left and right sides. The bottom of the L-shaped connecting plate 4 is also respectively welded with the rack 21. The two racks 21 on the same side are oppositely arranged. The lower front side of the frame 1 is respectively rotatably connected with the gear 22 on the left and right side walls through the rotating shaft 14. The oppositely arranged two racks 21 are respectively engaged with the corresponding gears 22.

[0027] When the L-shaped connecting plate 4 and the sliding block 3 move downward along the Z-axis slide rail 2, the polishing disc 15 is driven to move downward to contact the product for polishing. At this time, the L-shaped connecting plate 4 moves downward, thereby driving the connected rack 21 to move downward synchronously, and the rack 21 drives the gear 22 to rotate. Since the gear 22 and the rack 21 on the protective plate 20 are also engaged with each other, the rotation of the gear 22 drives the rack 21 on the protective plate 20 to move upward, thereby driving the protective plate 20 to move upward synchronously, and further blocking the polishing area to prevent others from approaching the product being polished. After polishing, the L-shaped connecting plate 4 and the sliding block 3 move upward along the Z-axis slide rail 2 to reset, thereby driving the polishing disc 15 to move upward, and through the cooperation of the two side racks 21 and the gear 22, the protective plate 20 is driven to move downward to be folded, so as to facilitate subsequent operation or maintenance of the equipment.

[0028] As shown in Figures 2-4 and Figure 6 , the polishing liquid spray pipe 23, the water pump 24, the liquid storage frame 19, and the induction assembly are further included. The U-shaped polishing liquid spray pipe 23 is installed on the lower side of the frame 1, and the spray head thereof faces the placement table 101, which is used to spray polishing liquid to the product on the placement table 101. The water pump 24 is installed on the rear lower side of the frame 1, the liquid outlet of the water pump 24 is connected with the polishing liquid spray pipe 23, the liquid inlet of the water pump 24 is used to connect with a container storing polishing liquid, the water pump 24 is electrically connected with the controller 25, the induction assembly is arranged in the frame 1, and the liquid storage frame 19 is connected to the bottom of the frame 1. The liquid storage frame 19 is located below the placement table 101, and the excess polishing liquid generated during the polishing process of the product will flow into the liquid storage frame 19 along the pre-set notch on the placement table 101, so as to facilitate the unified cleaning of the polishing liquid in the later period. The liquid outlet is installed on the front side of the liquid storage frame 19, and the used polishing liquid can be discharged through the liquid outlet to complete the cleaning work.

[0029] As shown in Figure 4 , the induction assembly includes the induction sheet 17 and the photoelectric sensor 18. The photoelectric sensor 18 is connected to the left and right side walls on the lower side of the frame 1 through screws, and the induction sheet 17 is connected to the front side of the bottom of each L-shaped connecting plate 4. The photoelectric sensor 18 is electrically matched with the induction sheet 17, and the photoelectric sensor 18 is electrically connected with the controller 25, which is used to transmit the induction signal to the controller 25.

[0030] When the L-shaped connecting plate 4 and the sliding block 3 move downward along the Z-axis slide rail 2, the polishing disc 15 is driven to move downward until it contacts the product to perform the polishing operation. In this process, the inductive sheet 17 moves downward synchronously with the L-shaped connecting plate 4, and when the inductive sheet 17 moves to the interface with the photoelectric sensor 18, the photoelectric sensor 18 detects the signal of the inductive sheet 17 and sends an electrical signal to the controller 25. After the controller 25 receives the signal, the water pump 24 is started, and after the water pump 24 is started, the polishing liquid in the external container is pumped to the polishing liquid spray pipe 23, and the polishing liquid is continuously sprayed to the product through the spray head of the spray pipe to assist the polishing process of the product. After the polishing of the product is completed, the L-shaped connecting plate 4 and the sliding block 3 move upward along the Z-axis slide rail 2 to reset, and the polishing disc 15 moves upward to reset. At the same time, the inductive sheet 17 also moves upward and is out of contact with the photoelectric sensor 18, at this time, the photoelectric sensor 18 sends a signal to the controller 25 that the inductive sheet 17 is out of contact, and the controller 25 receives the signal and immediately closes the water pump 24 to stop the spraying of the polishing liquid.

[0031] Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A repair aid for composite material products, characterized in that, The device includes a frame (1), a placement platform (101), a moving component, a polishing motor (13), a rotating shaft (14), a polishing disc (15), a compression spring (16), and a controller (25). The frame (1) serves as the support structure for the entire device. The placement platform (101) is connected to the lower side of the frame (1). The moving component is located on the upper side of the frame (1). The polishing motor (13) is mounted on the moving component. The rotating shaft (14) is connected to the output shaft of the polishing motor (13). The polishing disc (15) is slidably connected to the bottom of the rotating shaft (14). The compression spring (16) is connected between the polishing disc (15) and the rotating shaft (14). The controller (25) is installed on the right side of the frame (1). The polishing motor (13) is electrically connected to the controller (25).

2. The auxiliary tool for repairing composite material products according to claim 1, characterized in that, The moving components include a Z-axis slide rail (2), a slider (3), an L-shaped connecting plate (4), a Y-axis slide rail (5), a sliding block (6), an X-axis slide rail (7), a slider (8), a first drive module (9), a second drive module (10), and a third drive module (12). Z-axis slide rails (2) are symmetrically connected to both inner side walls of the frame (1). Slider blocks (3) are slidably connected to the Z-axis slide rails (2). An L-shaped connecting plate (4) connects two sliders (3) on the same side. A third drive module (12) is installed on the left and right outer side walls of the frame (1). The third drive module (12) is powered by the L-shaped connecting plate (4) on the same side. The top of the L-shaped connecting plate (4)... A Y-axis slide rail (5) is connected, and a sliding block (6) is slidably connected between the two Y-axis slide rails (5). A second drive module (10) is mounted on an L-shaped connecting plate (4). The second drive module (10) is connected to the sliding block (6) for power connection. An X-axis slide rail (7) is connected to the lower side of the sliding block (6). A sliding component (8) is slidably connected to the X-axis slide rail (7). A polishing motor (13) is mounted on the sliding component (8). A first drive module (9) is mounted on the sliding block (6). The first drive module (9) is connected to the sliding component (8) for power connection. The first drive module (9), the second drive module (10), and the third drive module (12) are all electrically connected to the controller (25).

3. The auxiliary tool for repairing composite material products according to claim 2, characterized in that, It also includes a protective plate (20), a rack (21) and a gear (22). The protective plate (20) is slidably connected to the lower front side of the frame (1). The rack (21) is connected to the rear two sides of the protective plate (20). The rack (21) is also connected to the bottom of the L-shaped connecting plate (4). The two racks (21) on the same side are arranged opposite each other. The gears (22) are rotatably connected to the left and right side walls of the lower front side of the frame (1) through the rotating shaft (14). The two racks (21) arranged opposite each other mesh with the corresponding gears (22).

4. A composite material product repair auxiliary tool according to claim 3, characterized in that, It also includes a polishing liquid nozzle (23), a water pump (24) and a sensing component. A U-shaped polishing liquid nozzle (23) is installed on the lower side of the frame (1), with its nozzle facing the placement platform (101). A water pump (24) is installed on the lower rear side of the frame (1). The outlet end of the water pump (24) is connected to the polishing liquid nozzle (23). The inlet end of the water pump (24) is used to connect to an external container storing polishing liquid. The water pump (24) is electrically connected to the controller (25). A sensing component is provided inside the frame (1).

5. A composite material product repair auxiliary tool according to claim 4, characterized in that, The sensing component includes a sensing sheet (17) and a photoelectric sensor (18). The photoelectric sensor (18) is connected to the lower left and right side walls of the frame (1). The sensing sheet (17) is connected to the bottom front of the two L-shaped connecting plates (4). The photoelectric sensor (18) is electrically connected to the sensing sheet (17), and the photoelectric sensor (18) is electrically connected to the controller (25).

6. A composite material product repair auxiliary tool according to claim 5, characterized in that, It also includes a material storage container (19), which is connected to the bottom of the frame (1) and is located below the placement platform (101).