Polishing equipment for aviation equipment maintenance

Abstract

The present invention belongs to the technical field of aviation equipment maintenance, and specifically refers to a polishing device for aviation equipment maintenance, comprising a base plate, a support column and a top plate, wherein an adaptive force support mechanism is fixedly installed on the base plate, four groups of support columns are arranged and are respectively fixedly installed on the four corners of the base plate, and the top plate is fixedly installed on the support column, and a hydraulic cylinder is fixedly installed on the top plate, and the output end of the hydraulic cylinder penetrates the top plate, and an arc-adjustable polishing mechanism is connected below the output end of the hydraulic cylinder, and the arc-adjustable polishing mechanism comprises a lifting plate, a side plate, a polishing belt assembly, a force-assisted pushing assembly and a two-way driving assembly; multiple groups of polishing belts can move and change the polishing position during polishing, effectively avoiding the problem of polishing dead angles in the gaps between the groups of polishing belts, and at the same time, the polishing belts in opposite directions are rotated for polishing, effectively avoiding displacement caused by the polishing force affecting the quality of the polishing effect.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation equipment maintenance, and in particular refers to a polishing device for aviation equipment maintenance. Background Art

[0002] As the outer covering layer of the aircraft, the aircraft skin is directly exposed to the atmosphere and is subjected to various severe climatic conditions and flight stresses. During long-term use, the aircraft skin is prone to scratches, corrosion, oxidation, and fading. These problems not only affect the appearance of the aircraft, but more importantly, they may reduce the structural strength and aerodynamic performance of the aircraft, thus posing a potential threat to flight safety. In order to ensure the safety performance and good appearance of the aircraft, the aircraft skin needs to be repaired and maintained regularly. Polishing is an important part of aircraft skin maintenance. Polishing can remove damage and contaminants on the skin surface, restore the gloss and surface smoothness of the skin, and improve the aerodynamic performance and anti-corrosion performance of the aircraft.

[0003] Most of the existing polishing equipment is general-purpose and is not specially designed for the special properties and requirements of aircraft skin. Aircraft skin is usually made of high-strength materials such as aluminum alloy and titanium alloy, with high surface hardness and curved shape. Ordinary polishing equipment is difficult to meet the polishing needs of aircraft skin, and is prone to problems such as poor polishing effect and damage to the skin. In addition, although setting up multiple sets of polishing belts for back and forth polishing can achieve large-area polishing, there are gaps between the multiple sets of polishing belts, which are prone to gaps and dead corners that are difficult to handle by polishing, and the aircraft skin is easily displaced by the polishing force of the polishing belts. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present invention provides a polishing device for aviation equipment maintenance that can be adaptively adjusted according to the curved shape of an aircraft skin and perform high-fitting polishing on the aircraft skin. Multiple groups of polishing belts can move and change the polishing position during polishing, effectively avoiding the problem of polishing dead angles in the gaps between the groups of polishing belts. At the same time, the polishing belts in opposite directions rotate for polishing, effectively avoiding displacement due to the polishing force that affects the quality of the polishing effect.

[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: a polishing device for aviation equipment maintenance, comprising a bottom plate, a support column and a top plate, wherein an adaptive force support mechanism is fixedly installed on the bottom plate, the support column is arranged in four groups and is respectively fixedly installed on the four corners of the bottom plate, the top plate is fixedly installed on the support column, a hydraulic cylinder is fixedly installed on the top plate, the output end of the hydraulic cylinder penetrates the top plate, and an arc-adjustable polishing mechanism is connected below the output end of the hydraulic cylinder; the arc-adjustable polishing mechanism comprises a lifting plate, a side plate, and a polishing belt group Parts, force-assisted pushing components and two-way driving components, the lifting plate is fixedly installed under the output end of the hydraulic cylinder, a group of relatively parallel side edges of the lifting plate are fixedly provided with slide rails, the side panels are provided with two groups and are located on another group of relatively parallel side edges of the lifting plate, the two ends of the side panels are respectively slidably connected to the two groups of slide rails, the polishing belt components are provided with two groups and are respectively installed on the two groups of side panels, the force-assisted pushing components are provided with two groups and are symmetrically arranged on the two side edges of the top plate, and the two groups of two-way driving components are provided with two groups and are symmetrically arranged on both sides of the bottom wall of the top plate.

[0006] As a preferred technical solution of the present invention, the polishing belt assembly includes a driving roller 1, a driving roller 2, a transmission roller 1, a transmission roller 2, a polishing belt 1 and a polishing belt 2, wherein the driving roller 1 and the driving roller 2 are movably mounted on one side of the side plate, the driving roller 1 and the driving roller 2 are coaxially rotatably arranged, the transmission roller 1 and the transmission roller 2 are movably mounted on one side of the side plate, and the transmission roller 1 and the transmission roller 2 are each provided with two groups and are respectively located on both sides of the driving roller 1 and the driving roller 2, one set of the polishing belt is arranged on the driving roller 1 and the two groups of transmission roller 1, and the two sets of the polishing belt are arranged on the driving roller 2 and the two groups of transmission roller 2.

[0007] As a preferred technical solution of the present invention, a slide groove is horizontally opened on the side plate, and a two-way telescopic cylinder is fixedly installed on the side plate. The output ends on both sides of the two-way telescopic cylinder are connected to movable support blocks, and the movable support blocks are slidably installed in the slide groove. A connecting shaft is connected to the movable support block, and the connecting shaft passes through the side plate. The transmission roller one and the transmission roller two are rotatably sleeved on the connecting shaft.

[0008] As a preferred technical solution of the present invention, a belt pressing assembly is installed on the side panel, and the belt pressing assembly is arranged in four groups and respectively located at the two side ends of the two groups of side panels. The belt pressing assembly includes a rotating motor, a connecting rod and a pressure roller. The rotating motor is fixedly installed on the side panel, and the output end of the rotating motor passes through the side panel. One end of the connecting rod is connected to the output end of the rotating motor, and the other end of the connecting rod is provided with a central axis, and the pressure roller is rotatably sleeved on the central axis.

[0009] As a preferred technical solution of the present invention, the bidirectional driving assembly includes a C-shaped support plate, a driving motor, a driving bevel gear, a first transmission bevel gear, and a second transmission bevel gear. The top end of the C-shaped support plate is fixedly connected to the top plate. The driving motor is fixedly installed on the outer side wall of the C-shaped support plate. The output end of the driving motor penetrates through the side wall of the C-shaped support plate and is connected to the driving bevel gear. The first transmission bevel gear is rotatably arranged on the inner side wall of the C-shaped support plate. The first transmission bevel gear is meshed with the driving bevel gear. The first transmission bevel gear is of a hollow structure. The rotating shaft of the first transmission bevel gear rotatably penetrates through the side wall of the C-shaped support plate and is connected with a first telescopic part. The first transmission bevel gear is in transmission connection with the first driving roller through the first telescopic part. The second transmission bevel gear is rotatably arranged on the other inner side wall of the C-shaped support plate. The second transmission bevel gear is meshed with the driving bevel gear. The rotating shaft of the second transmission bevel gear penetrates through the first transmission bevel gear and the C-shaped support plate without contact and is slidably connected with a second telescopic part. The second transmission bevel gear is connected to the second driving roller through the second telescopic part without contact through the first driving roller.

[0010] As a preferred technical solution of the present invention, the force-assisted pushing assembly includes an L-shaped support plate, a fixed block, an outer rotating cylinder, and an inner cylindrical rod. The fixed block is fixedly arranged on the top plate. The outer rotating cylinder is rotatably arranged on the fixed block. A transmission belt is sleeved on the outer rotating cylinder in a transmission manner. The outer rotating cylinder is in transmission connection with the rotating shaft of the second transmission bevel gear through the transmission belt. A groove track is penetrated on the outer cylinder wall of the outer rotating cylinder. The groove track is an inclined elliptical ring. The L-shaped support plate is fixedly arranged on the side wall of the side plate. The inner cylindrical rod is fixedly arranged on the L-shaped support plate. The inner cylindrical rod and the outer rotating cylinder are coaxially arranged. One end of the inner cylindrical rod far away from the L-shaped support plate is movably inserted into the inside of the outer rotating cylinder. A clamping rod is arranged at one end of the inner cylindrical rod close to the inside of the outer rotating cylinder. The clamping rod is movably inserted through the groove track.

[0011] As a preferred technical solution of the present invention, the adaptability support mechanism includes a support seat, an arc-shaped support table, a first sliding support block, an adjusting support plate, and a suction cup. The support seat is fixedly installed on the bottom plate. The arc-shaped support table is fixedly installed on the support seat. An arc-shaped sliding groove is opened on the arc-shaped outer wall of the arc-shaped support table. Two groups of the first sliding support blocks are arranged and slidably arranged in the arc-shaped sliding groove. The top end of the first sliding support block is fixedly installed with a first electric push rod. The adjusting support plate is fixedly connected to the output end of the first electric push rod. A plurality of groups of suction cups are arranged and evenly arranged on the adjusting support plate. Two groups of electric telescopic rods are hinged on the bottom plate. The output ends of the two groups of electric telescopic rods are respectively hinged to the two groups of first sliding support blocks.

[0012] As a preferred technical solution of the present invention, the adaptive force support mechanism also includes a central support block, a central support plate, a sliding support block 2 and an auxiliary support plate. The central support block is fixedly installed at the middle position of the arc-shaped slide groove, the central support plate is fixedly installed on the central support block, the sliding support block 2 is arranged in multiple groups and is slidably arranged in the arc-shaped slide groove, the top of the sliding support block 2 is fixedly installed with an electric push rod 2, and the auxiliary support plate is fixedly connected to the output end of the electric push rod 2.

[0013] As a preferred technical solution of the present invention, two opposite sides of the polishing belts on the two groups of the polishing belt assemblies are provided with protrusions, and the protrusions on the two groups of the polishing belts are arranged alternately.

[0014] Compared with the prior art, the present invention adopts the above structure to achieve the following beneficial effects:

[0015] 1. The two-way driving component cooperates with the leveraging push component to drive the polishing belt component to shift back and forth for polishing, so that each position of the aircraft skin surface can be evenly polished. The two sets of polishing belts 2 rotating in the same direction in the middle face the staggered protrusions on the sides, which will not affect each other's movement, and can avoid the existence of gaps and dead angles. At the same time, the two sets of polishing belts 1 located on the outside rotate in the opposite direction to the polishing belt 2, and the shift polishing is realized by the back and forth driving of the leveraging push component, which can also effectively avoid the problem of polishing dead angles in the gaps between the groups of polishing belts. The polishing belts 1 and 2 rotate in opposite directions for polishing, and the polishing forces in the two directions are integrated to avoid displacement during the polishing process.

[0016] 2. Through the setting of the curvature-adjustable polishing mechanism, since the aircraft skin usually has a curved surface, it is difficult for traditional flat polishing equipment to completely fit the skin surface, which easily leads to uneven polishing. The curvature-adjustable polishing equipment can be adjusted according to the specific curvature of the skin, ensuring that the polishing tool always keeps a close fit with the skin surface, thereby achieving a uniform polishing effect;

[0017] 3. When the polishing belt assembly is completely in contact with the skin, the operator can accurately sense the pressure changes during the polishing process, and thus adjust the polishing force to avoid damaging the skin due to excessive force or affecting the polishing effect due to insufficient force;

[0018] 4. The adjustable curved surface polishing equipment can complete the polishing of complex curved surface skins at one time, greatly reducing the number of repeated operations. It has stronger versatility and adaptability, and can be quickly adjusted according to the skin characteristics of different aircraft;

[0019] 5. Good fit can reduce the flying dust generated during the polishing process. When the polishing equipment is in close contact with the skin surface, most of the dust generated by polishing will be confined to the area between the equipment and the skin, reducing the amount of dust emitted to the surrounding environment. This is not only beneficial to protecting the health of operators, but also reduces pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the polishing equipment for aviation equipment maintenance proposed by the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the polishing equipment for aviation equipment maintenance proposed by the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 A cross-sectional view of a polishing mechanism with adjustable curvature of a polishing device for aviation equipment maintenance proposed by the present invention;

[0023] Figure 4 A schematic diagram of a part of the structure of a side panel of a polishing device for aviation equipment maintenance proposed by the present invention;

[0024] Figure 5 A schematic diagram of the structure of an adjustable arc polishing mechanism of a polishing device for aviation equipment maintenance proposed by the present invention Figure 1 ;

[0025] Figure 6 A schematic diagram of the structure of an adjustable arc polishing mechanism of a polishing device for aviation equipment maintenance proposed by the present invention Figure 2 ;

[0026] Figure 7 A schematic diagram of the structure of a bidirectional drive assembly of a polishing device for aviation equipment maintenance proposed by the present invention;

[0027] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0028] Fig. 9 This is a structural schematic diagram of a bidirectional drive assembly and a force-assisted push assembly of a polishing device for aviation equipment maintenance proposed by the present invention;

[0029] Fig.10 A schematic diagram of the structure of an adaptability support mechanism of a polishing device for aviation equipment maintenance proposed by the present invention;

[0030] Fig.11 for Figure 1 A partial enlarged view of point A in the middle.

[0031] Among them, 1. bottom plate, 2. support column, 3. top plate, 4. adaptive force support mechanism, 41. support seat, 42. arc support platform, 43. arc slide, 44. sliding support block 1, 45. adjustment support plate, 46. suction cup, 47. electric push rod 1, 48. center support block, 49. center support plate, 410. sliding support block 2, 411. auxiliary support plate, 412. electric push rod 2, 413. electric telescopic rod, 5. hydraulic cylinder, 6. arc adjustable polishing mechanism, 61. lifting plate, 611. slide rail, 62. side plate, 621. slide, 622. mobile support block, 623. connecting shaft, 624. two-way telescopic cylinder, 625. belt pressing assembly, 6251. rotating motor, 625 2. Connecting rod, 6253. Center axis, 6254. Pressure roller, 63. Polishing belt assembly, 631. Driving roller one, 632. Driving roller two, 633. Transmission roller one, 634. Transmission roller two, 635. Polishing belt one, 636. Polishing belt two, 64. Leverage push assembly, 641. L-shaped support plate, 642. Fixed block, 643. Outer rotating cylinder, 644. Inner cylindrical rod, 645. Transmission belt, 646. Groove rail, 647. Clamping rod, 65. Bidirectional drive assembly, 651. L-shaped support plate, 652. Driving motor, 653. Driving bevel gear, 654. Transmission bevel gear one, 655. Transmission bevel gear two, 656. Telescopic part one, 657. Telescopic part two. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1-Figure 11As shown, a polishing device for aviation equipment maintenance provided by the present invention comprises a bottom plate 1, a support column 2 and a top plate 3. An adaptive force support mechanism 4 is fixedly installed on the bottom plate 1. The adaptive force support mechanism 4 can be adjusted according to aircraft skins with different curvatures to support and fix the aircraft skins with high adaptability. Four groups of support columns 2 are arranged and are respectively fixedly installed on the four corners of the bottom plate 1. The top plate 3 is fixedly installed on the support columns 2. A hydraulic cylinder 5 is fixedly installed on the top plate 3. The output end of the hydraulic cylinder 5 runs through the top plate 3. The output end of the hydraulic cylinder 5 is connected to a polishing mechanism 6 with adjustable curvature, which can perform high-fitting polishing on aircraft skins with different curvatures, thereby improving the polishing quality and efficiency. The adjustable polishing mechanism 6 includes a lifting plate 61, a side plate 62, a polishing belt assembly 63, a lever-pushing assembly 64 and a bidirectional driving assembly 65. The lifting plate 61 is fixedly installed under the output end of the hydraulic cylinder 5. A set of relatively parallel side edges of the lifting plate 61 are fixedly provided with slide rails 611. Two sets of side plates 62 are provided and are located on another set of relatively parallel side edges of the lifting plate 61. The two ends of the side plates 62 are respectively slidably connected to the two sets of slide rails 611. Two sets of polishing belt assemblies 63 are provided and are respectively installed on the two sets of side plates 62. Two sets of lever-pushing assemblies 64 are provided and are symmetrically arranged on the two side edges of the top plate 3. Two sets of bidirectional driving assemblies 65 are provided and are symmetrically arranged on both sides of the bottom wall of the top plate 3.

[0035] The polishing belt assembly 63 includes a driving roller 1 631, a driving roller 2 632, a transmission roller 1 633, a transmission roller 2 634, a polishing belt 1 635 and a polishing belt 2 636. The driving roller 1 631 and the driving roller 2 632 are movably installed on one side of the side plate 62. The driving roller 1 631 and the driving roller 2 632 are coaxially rotatably arranged. The transmission roller 1 633 and the transmission roller 2 634 are movably installed on one side of the side plate 62. The transmission roller 1 633 and the transmission roller 2 634 are each provided with two groups and are respectively located on both sides of the driving roller 1 631 and the driving roller 2 632. The polishing belt 1 635 is sleeved on the driving roller 1 631 and the two groups of transmission roller 1 633. The polishing belt 2 636 is sleeved on the driving roller 2 632 and the two groups of transmission roller 2 634. The polishing belt 2 636 on the polishing belt assembly 63 is provided with protrusions on opposite sides, and the protrusions on the two groups of polishing belt 2 636 are staggered with each other.

[0036] A slide groove 621 is horizontally provided on the side plate 62, and a two-way telescopic cylinder 624 is fixedly installed on the side plate 62. The output ends of the two-way telescopic cylinder 624 on both sides are connected to a moving support block 622. The moving support block 622 is slidably installed in the slide groove 621. The moving support block 622 is connected to a connecting shaft 623. The connecting shaft 623 penetrates the side plate 62, and a transmission roller 1 633 and a transmission roller 2 634 are rotatably sleeved on the connecting shaft 623. The two-way telescopic cylinder 624 drives the transmission roller 1 633 and the transmission roller 2 634 on the moving support block 622 to move toward each other through its own telescopic movement, so that the polishing belt 1 635 and the polishing belt 2 636 become loose, and then the hydraulic cylinder 5 drives the polishing belt 1 635 and the polishing belt 2 636 downward to fit on the arc-shaped aircraft skin on the adaptive force support mechanism 4; a pressure cylinder 62 is installed on the side plate 62. Belt assembly 625, four groups of belt pressing assemblies 625 are arranged and are respectively located at the two side ends of the two groups of side plates 62, the belt pressing assembly 625 includes a rotating motor 6251, a connecting rod 6252 and a clamping roller 6254, the rotating motor 6251 is fixedly installed on the side plate 62, the output end of the rotating motor 6251 is arranged through the side plate 62, one end of the connecting rod 6252 is connected to the output end of the rotating motor 6251, the other end of the connecting rod 6252 is provided with a central shaft 6253, the clamping roller 6254 is rotatably sleeved on the central shaft 6253, the rotating motor 6251 drives the connecting rod 6252 to rotate, the connecting rod 6252 drives the clamping roller 6254 on the central shaft 6253 to rotate to clamp the polishing belt 1 635 and the polishing belt 2 636, so that the polishing belt 1 635 and the polishing belt 2 636 are in a taut state.

[0037] The bidirectional driving assembly 65 includes a C-shaped support plate 651, a driving motor 652, a driving bevel gear 653, a first transmission bevel gear 654, and a second transmission bevel gear 655. The top end of the C-shaped support plate 651 is fixedly connected to the top plate 3. The driving motor 652 is fixedly installed on the outer side wall of the C-shaped support plate 651. The output end of the driving motor 652 penetrates through the side wall of the C-shaped support plate 651 and is connected to the driving bevel gear 653. The first transmission bevel gear 654 is rotatably arranged on the inner side wall of the C-shaped support plate 651. The first transmission bevel gear 654 is meshed with the driving bevel gear 653. The first transmission bevel gear 654 is of a hollow structure. The rotating shaft of the first transmission bevel gear 654 rotatably penetrates through the side wall of the C-shaped support plate 651 and is connected to a first telescopic part 656. The first telescopic part 656 is a telescopic rod with ribs. When the first transmission bevel gear 654 rotates, the driving roller 631 is driven to rotate through the first telescopic part 656. The first transmission bevel gear 654 is传动连接 with the driving roller 631 through the first telescopic part 656. The second transmission bevel gear 655 is rotatably arranged on the other inner side wall of the C-shaped support plate 651. The second transmission bevel gear 655 is meshed with the driving bevel gear 653. The rotating shaft of the second transmission bevel gear 655 penetrates through the first transmission bevel gear 654 and the C-shaped support plate 651 without contact and is slidably connected to a second telescopic part 657. The second transmission bevel gear 655 is connected to the driving roller 632 through the second telescopic part 657 without contact through the driving roller 631. The driving motor 652 drives the driving bevel gear 653 to rotate. The driving bevel gear 653 drives the first transmission bevel gear 654 and the second transmission bevel gear 655 to rotate in opposite directions. The first transmission bevel gear 654 drives the driving roller 631 to rotate. The second transmission bevel gear 655 drives the driving roller 632 to rotate. The driving roller 631 and the driving roller 632 respectively drive the polishing abrasive belt 635 and the polishing abrasive belt 636 to rotate in opposite directions for polishing, combining the polishing forces in two directions to avoid displacement during the polishing process. The settings of the first telescopic part 656 and the second telescopic part 657 ensure that while the first transmission bevel gear 654 and the second transmission bevel gear 655 drive the driving roller 631 and the driving roller 632 to rotate, it will not conflict with the movement of the side plate 62.

[0038] The leveraging push assembly 64 includes an L-shaped support plate 641, a fixed block 642, an outer rotating cylinder 643 and an inner cylindrical rod 644. The fixed block 642 is fixedly arranged on the top plate 3, the outer rotating cylinder 643 is rotatably arranged on the fixed block 642, a transmission sleeve is connected with a transmission belt 645 on the outer rotating cylinder 643, the outer rotating cylinder 643 is connected to the rotating shaft of the transmission bevel gear 2 655 through the transmission belt 645, a groove rail 646 is passed through the outer cylinder wall of the outer rotating cylinder 643, and the groove rail 646 is an inclined elliptical ring. The L-shaped support plate 641 is fixedly arranged on the side wall of the side plate 62, the inner cylindrical rod 644 is fixedly arranged on the L-shaped support plate 641, the inner cylindrical rod 644 and the outer rotating cylinder 643 are coaxially arranged, and the inner cylindrical rod 6 The end of 44 away from the L-shaped support plate 641 is movably inserted into the outer rotating cylinder 643, and the end of the inner cylindrical rod 644 close to the outer rotating cylinder 643 is provided with a clamping rod 647, and the clamping rod 647 is movably inserted into the groove rail 646. During the rotation of the transmission bevel gear 655, the outer rotating cylinder 643 is driven to rotate through the transmission belt 645. The rotation of the outer rotating cylinder 643 causes the clamping rod 647 on the inner cylindrical rod 644 to move in the groove rail 646, and the inner cylindrical rod 644 drives the side plate 62 to move back and forth on the slide rail 611 through the L-shaped support plate 641. The two groups of side plates 62 drive the polishing belt assembly 63 to move back and forth for polishing, so as to avoid the situation where missed gaps are not processed when polishing the aircraft skin.

[0039] The adaptive force support mechanism 4 includes a support seat 41, an arc-shaped support platform 42, a sliding support block 44, an adjustment support plate 45 and a suction cup 46. The support seat 41 is fixedly mounted on the bottom plate 1, the arc-shaped support platform 42 is fixedly mounted on the support seat 41, an arc-shaped slide groove 43 is provided on the arc-shaped outer wall of the arc-shaped support platform 42, two groups of sliding support blocks 44 are provided and slide in the arc-shaped slide groove 43, an electric push rod 47 is fixedly mounted on the top of the sliding support block 44, and the adjustment support plate 45 is provided. 45 is fixedly connected to the output end of the electric push rod 47, a plurality of suction cups 46 are arranged and evenly arranged on the adjusting support plate 45, and two sets of electric telescopic rods 413 are hinged on the bottom plate 1, and the output ends of the two sets of electric telescopic rods 413 are hinged to the two sets of sliding support blocks 44 respectively, and the sliding support blocks 44 are driven to slide to a suitable position in the arc-shaped slide groove 43 through the telescopic movement of the electric telescopic rod 413, and then the electric push rod 47 is started to rise and fall according to the curvature of the aircraft skin. The suction cup 46 is adjusted so that it fits and is adsorbed on the bottom wall of the aircraft skin; the adaptive force support mechanism 4 also includes a central support block 48, a central support plate 49, a second sliding support block 410 and an auxiliary support plate 411. The central support block 48 is fixedly installed at the middle position of the arc-shaped slide groove 43, the central support plate 49 is fixedly installed on the central support block 48, the second sliding support block 410 is arranged in multiple groups and is slidably arranged in the arc-shaped slide groove 43, the top of the second sliding support block 410 is fixedly installed with a second electric push rod 412, and the auxiliary support plate 411 is fixedly connected to the output end of the second electric push rod 412. The second sliding support block 410 is adjusted according to the curvature of the aircraft cover, and at the same time, the second electric push rod 412 drives the auxiliary support plate 411 to rise and fall to adjust the height to support the middle part of the aircraft cover; rubber strips are adhered to the central support plate 49 and the auxiliary support plate 411, and the rubber strips are arranged in multiple groups and are evenly arranged to increase the contact friction between the aircraft skin and ensure the support stability of the aircraft skin.

[0040] When in use, the aircraft skin is placed on the central support plate 49 on the arc-shaped support platform 42, and the electric telescopic rod 413 is started according to the curvature of the aircraft skin. The sliding support block 1 44 is driven to slide to a suitable position in the arc-shaped slide groove 43 through the telescopic movement of the electric telescopic rod 413, and then the electric push rod 1 47 is started to lift and adjust according to the curvature of the aircraft skin so that the suction cup 46 fits and is adsorbed on the bottom wall of the aircraft skin. Then, the sliding support block 2 410 is adjusted according to the curvature of the aircraft cover, and at the same time, the electric push rod 2 412 drives the auxiliary support plate 411 to lift and adjust the height to support the middle part of the aircraft cover.

[0041] The two-way telescopic cylinder 624 is started. The two-way telescopic cylinder 624 drives the two groups of movable support blocks 622 located on the same side plate 62 to slide in the slide groove 621 through its own telescopic movement. The movable support block 622 drives the transmission roller 1 633 and the transmission roller 2 634 to move toward each other, so that the polishing belt 1 635 and the polishing belt 2 636 become loose, and then the hydraulic cylinder 5 drives the polishing belt 1 635 and the polishing belt 2 636 to fit downward on the fixed arc-shaped aircraft skin. The loose polishing belt 1 635 and the polishing belt 2 636 fit according to the curvature of the aircraft skin itself, and then the rotating motor 6251 is operated, and the rotating motor 6251 drives the connecting rod 6252 to rotate. The connecting rod 6252 drives the pressing roller 6254 on the central shaft 6253 to move and press the polishing belt 1 635 and the polishing belt 2 636, so that the polishing belt 1 635 and the polishing belt 2 636 are in a taut state;

[0042] Then start the driving motor 652, the driving motor 652 drives the driving bevel gear 653 to rotate, the driving bevel gear 653 drives the transmission bevel gear 1 654 and the transmission bevel gear 2 655 to rotate in opposite directions, the transmission bevel gear 1 654 drives the driving roller 1 631 to rotate, the transmission bevel gear 2 655 drives the driving roller 2 632 to rotate, the driving roller 1 631 and the driving roller 2 632 respectively drive the polishing belt 1 635 and the polishing belt 2 636 to rotate in opposite directions for polishing, which just combines the polishing forces in the two directions , to avoid displacement during the polishing process, while the transmission bevel gear 2 655 rotates, the transmission belt 645 drives the outer rotating cylinder 643 to rotate, and the rotation of the outer rotating cylinder 643 causes the clamping rod 647 on the inner cylindrical rod 644 to move in the groove rail 646, and the inner cylindrical rod 644 drives the side plate 62 to move back and forth on the slide rail 611 through the L-shaped support plate 641, and the two groups of side plates 62 drive the polishing belt 1 635 and the polishing belt 2 636 to move back and forth for polishing, thereby achieving uniform polishing of the aircraft skin surface.

[0043] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A polishing device for aviation equipment maintenance, comprising a bottom plate (1), a support column (2) and a top plate (3), characterized in that: An adaptive force support mechanism (4) is fixedly mounted on the bottom plate (1); four groups of support columns (2) are arranged and are respectively fixedly mounted on the four corners of the bottom plate (1); the top plate (3) is fixedly mounted on the support columns (2); a hydraulic cylinder (5) is fixedly mounted on the top plate (3); an output end of the hydraulic cylinder (5) is arranged to penetrate the top plate (3); and an arc-adjustable polishing mechanism (6) is connected below the output end of the hydraulic cylinder (5); the arc-adjustable polishing mechanism (6) comprises a lifting plate (61), a side plate (62), a polishing belt assembly (63), a force-assisted pushing assembly (64) and a bidirectional driving assembly (65); the lifting plate ( 61) is fixedly installed under the output end of the hydraulic cylinder (5), a group of relatively parallel side edges of the lifting plate (61) are fixedly provided with slide rails (611), two groups of side plates (62) are provided and are located on another group of relatively parallel side edges of the lifting plate (61), and the two ends of the side plates (62) are respectively slidably connected to the two groups of slide rails (611), two groups of polishing belt assemblies (63) are provided and are respectively installed on the two groups of side plates (62), two groups of lever pushing assemblies (64) are provided and are symmetrically arranged on the two side edges of the top plate (3), and two groups of two-way drive assemblies (65) are provided and are symmetrically arranged on both sides of the bottom wall of the top plate (3); The polishing belt assembly (63) comprises a driving roller 1 (631), a driving roller 2 (632), a transmission roller 1 (633), a transmission roller 2 (634), a polishing belt 1 (635) and a polishing belt 2 (636), wherein the driving roller 1 (631) and the driving roller 2 (632) are movably mounted on one side of the side plate (62), the driving roller 1 (631) and the driving roller 2 (632) are coaxially rotatable, and the transmission roller 1 (633) and the transmission roller 2 (634) are coaxially rotatable. The movable roller 2 (634) is movably mounted on one side of the side plate (62), and the transmission roller 1 (633) and the transmission roller 2 (634) are each provided in two groups and are respectively located on both sides of the driving roller 1 (631) and the driving roller 2 (632), the polishing belt 1 (635) is sleeved on the driving roller 1 (631) and the two groups of transmission roller 1 (633), and the polishing belt 2 (636) is sleeved on the driving roller 2 (632) and the two groups of transmission roller 2 (634); The polishing belts (636) on the two groups of polishing belt assemblies (63) are provided with protrusions on opposite sides, and the protrusions on the two groups of polishing belts (636) are arranged in an interlaced manner; The side plate (62) is provided with a sliding groove (621) in the transverse direction, a bidirectional telescopic cylinder (624) is fixedly mounted on the side plate (62), both output ends of the bidirectional telescopic cylinder (624) are connected to a movable support block (622), the movable support block (622) is slidably mounted in the sliding groove (621), a connecting shaft (623) is connected to the movable support block (622), the connecting shaft (623) passes through the side plate (62), and the transmission roller 1 (633) and the transmission roller 2 (634) are rotatably sleeved on the connecting shaft (623); A belt pressing assembly (625) is mounted on the side plate (62). Four groups of the belt pressing assemblies (625) are provided and are respectively located at both ends of the two side plates (62). The belt pressing assembly (625) includes a rotating motor (6251), a connecting rod (6252) and a pressing roller (6254). The rotating motor (6251) is fixedly mounted on the side plate (62), and the output end of the rotating motor (6251) penetrates through the side plate (62). One end of the connecting rod (6252) is connected to the output end of the rotating motor (6251), and a central shaft (6253) is provided at the other end of the connecting rod (6252). The pressing roller (6254) is rotatably sleeved on the central shaft (6253). The bidirectional driving assembly (65) includes a U-shaped support plate (651), a driving motor (652), a driving bevel gear (653), a first transmission bevel gear (654) and a second transmission bevel gear (655). The top end of the U-shaped support plate (651) is fixedly connected to the top plate (3). The driving motor (652) is fixedly mounted on the outer side wall of the U-shaped support plate (651), and the output end of the driving motor (652) penetrates through the side wall of the U-shaped support plate (651) and is connected to the driving bevel gear (653). The first transmission bevel gear (654) is rotatably arranged on the inner side wall of the U-shaped support plate (651), and the first transmission bevel gear (654) is meshed with the driving bevel gear (653). The first transmission bevel gear (654) is of a hollow structure, and the rotating shaft of the first transmission bevel gear (654) rotatably penetrates through the side wall of the U-shaped support plate (651) and is connected to a first telescopic part (656). The first transmission bevel gear (654) is in transmission connection with the first driving roller (631) through the first telescopic part (656). The second transmission bevel gear (655) is rotatably arranged on the other inner side wall of the U-shaped support plate (651), and the second transmission bevel gear (655) is meshed with the driving bevel gear (653). The rotating shaft of the second transmission bevel gear (655) penetrates through the first transmission bevel gear (654) and the U-shaped support plate (651) without contact and is slidably connected to a second telescopic part (657). The second transmission bevel gear (655) is connected to the second driving roller (632) through the second telescopic part (657) without contact through the first driving roller (631). The lever-assisted pushing assembly (64) comprises an L-shaped support plate (641), a fixed block (642), an outer rotating cylinder (643) and an inner cylindrical rod (644); the fixed block (642) is fixedly mounted on the top plate (3); the outer rotating cylinder (643) is rotatably mounted on the fixed block (642); a transmission belt (645) is connected to a transmission sleeve on the outer rotating cylinder (643); the outer rotating cylinder (643) is connected to the rotating shaft of the second transmission bevel gear (655) via the transmission belt (645); and a groove rail (646) is passed through the outer cylinder wall of the outer rotating cylinder (643). The groove rail (646) is in the shape of an inclined elliptical ring. The L-shaped support plate (641) is fixedly arranged on the side wall of the side plate (62). The inner cylindrical rod (644) is fixedly arranged on the L-shaped support plate (641). The inner cylindrical rod (644) and the outer rotating cylinder (643) are coaxially arranged. One end of the inner cylindrical rod (644) away from the L-shaped support plate (641) is movably inserted into the outer rotating cylinder (643). One end of the inner cylindrical rod (644) close to the outer rotating cylinder (643) is provided with a clamping rod (647), and the clamping rod (647) is movably inserted into the groove rail (646).

2. The polishing device for aviation equipment maintenance according to claim 1, characterized in that: The adaptive force support mechanism (4) comprises a support seat (41), an arc-shaped support platform (42), a sliding support block (44), an adjustment support plate (45) and a suction cup (46); the support seat (41) is fixedly mounted on the bottom plate (1); the arc-shaped support platform (42) is fixedly mounted on the support seat (41); an arc-shaped slide groove (43) is provided on the arc-shaped outer wall of the arc-shaped support platform (42); two groups of sliding support blocks (44) are provided and are slidably mounted on the arc-shaped support platform (42); In the slide groove (43), an electric push rod (47) is fixedly installed on the top of the sliding support block (44), the adjustment support plate (45) is fixedly connected to the output end of the electric push rod (47), a plurality of suction cups (46) are arranged and evenly arranged on the adjustment support plate (45), and two groups of electric telescopic rods (413) are hinged on the bottom plate (1), and the output ends of the two groups of electric telescopic rods (413) are respectively hinged to the two groups of sliding support blocks (44).

3. The polishing device for aviation equipment maintenance according to claim 2, characterized in that: The adaptive force support mechanism (4) further comprises a central support block (48), a central support plate (49), a second sliding support block (410) and an auxiliary support plate (411), wherein the central support block (48) is fixedly mounted at a middle position of the arc-shaped slide groove (43), the central support plate (49) is fixedly mounted on the central support block (48), a plurality of second sliding support blocks (410) are arranged and slidably mounted in the arc-shaped slide groove (43), a second electric push rod (412) is fixedly mounted on the top end of the second sliding support block (410), and the auxiliary support plate (411) is fixedly connected to the output end of the second electric push rod (412).

Images