Paint spraying tool for cylindrical component of aircraft engine nacelle

Abstract

The utility model relates to the technical field of aircraft engine nacelle accessory production, in particular to a paint spraying tool for an aircraft engine nacelle cylindrical component, which is reasonable in structural design and mainly comprises a base, a rotary driver, a stand column, an annular carrying seat, an outer clamping component, a lifting type paint spraying component and a lifting type drying component. All the components cooperate with one another, the outer clamping assembly is used for positioning and clamping the nacelle cylindrical component arranged on the annular carrying base, the rotary driver is used for driving the annular carrying base and the nacelle cylindrical component on the annular carrying base to rotate in the circumferential direction, and the lifting type paint spraying assembly is used for spraying paint on the inner wall of the nacelle cylindrical component. The lifting type drying assembly is used for drying the paint layer on the inner wall of the nacelle cylindrical component, the lifting type drying assembly can assist in absorbing harmful gas generated by drying in the drying process, and in this way, the batch paint spraying requirement of the nacelle cylindrical component is met.

Description

Technical Field

[0001] This utility model relates to the field of aircraft engine nacelle component manufacturing technology, and in particular to a painting fixture for cylindrical components of aircraft engine nacelles. Background Technology

[0002] Painting fixtures play a crucial role in the production of cylindrical components for aircraft engine nacelles. These components not only require high strength and lightweight properties but also must meet stringent aerodynamic and aesthetic requirements. The application of painting fixtures ensures these complex and precise standards are met, primarily in the following aspects: 1) Since the cylindrical components of aircraft engine nacelles are directly exposed to the external environment, they require excellent corrosion resistance and aesthetics. Painting fixtures can uniformly and efficiently apply anti-corrosion coatings and decorative paint layers, protecting the components from environmental erosion while enhancing their overall visual appeal and meeting the high aesthetic standards of the aviation industry. 2) The performance of an aircraft engine largely depends on the aerodynamic design of its nacelle. Painting fixtures can precisely control coating thickness and smoothness, ensuring a smooth and flawless nacelle surface, which is crucial for reducing air resistance and improving fuel efficiency. Optimizing the coating allows for further fine-tuning of airflow paths, thereby improving the overall performance of the engine. 3) In aircraft manufacturing, every part must meet extremely high standards of precision and consistency. The use of spray painting fixtures can ensure that all cylindrical components have consistent quality during the painting process. Whether it is color, gloss or coating thickness, they can all meet the preset technical specifications, which is crucial for ensuring the overall safety and reliability of the aircraft.

[0003] Existing painting fixtures for aircraft engine nacelle cylindrical components have several shortcomings when painting the inner walls of these components. Firstly, they cannot reliably clamp the components, leading to easy displacement during painting and affecting the process. Secondly, they cannot effectively dry the paint surface promptly after painting. Therefore, it is necessary to optimize and improve the existing painting fixtures for aircraft engine nacelle cylindrical components. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide a painting fixture for cylindrical components of aircraft engine nacelles.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A painting fixture for a cylindrical component of an aircraft engine nacelle includes a base, a rotary actuator, a column, an annular carrier, an external clamping assembly, a lifting painting assembly, and a lifting drying assembly. The base has a rotary actuator mounted on its upper side and a column located within the vacuum region of the rotary actuator. An annular carrier is mounted on the movable end of the rotary actuator. Multiple external clamping assemblies for positioning the cylindrical nacelle are mounted circumferentially on the annular carrier. A lifting painting assembly for painting the inner wall of the cylindrical nacelle is mounted on one side of the column, and a lifting drying assembly for drying the paint layer on the inner wall of the cylindrical nacelle is mounted on the other side of the column.

[0007] Furthermore, in the above-mentioned painting fixture for the cylindrical component of an aircraft engine nacelle, the cylindrical component includes a cylindrical body with openings at both ends, and annular end plates extending inward from the openings, the annular end plates having a plurality of mounting holes evenly distributed along the circumference.

[0008] Furthermore, in the above-mentioned painting fixture for the cylindrical components of an aircraft engine nacelle, the rotary drive consists of a power source, a worm gear, a worm wheel integrated on the slewing bearing, and a housing. The power source drives the worm gear to rotate, and the worm gear meshes with the worm wheel. Due to the helical structure of the worm gear, when the worm gear rotates, it drives the worm wheel to rotate around the central axis.

[0009] Furthermore, in the above-mentioned painting fixture for the cylindrical component of an aircraft engine nacelle, the external clamping assembly includes a clamping push rod, a push plate, a slide rod, a positioning block, and a compression spring. The cylinder of the clamping push rod is embedded in the annular carrier. The movable end of the clamping push rod is equipped with a push plate. A slide rod passes through the push plate. The inner end of the slide rod is equipped with a positioning block that matches the shape of the outer wall of the cylindrical component of the nacelle. A compression spring is sleeved on the outer side of the slide rod. The two ends of the compression spring are respectively connected to the push plate and the positioning block.

[0010] Furthermore, in the above-mentioned painting fixture for the cylindrical components of an aircraft engine nacelle, the lifting painting assembly includes a first vertical rail, a first slider, a first mounting plate, a first push rod, a paint box, a paint head, and a paint supply pipe. The first vertical rail is fixed on a column, and a first slider forming a first linear guide pair with it is installed on the first vertical rail. The first push rod and the paint box are mounted on the first slider via the first mounting plate. The paint head is installed on the movable end of the first push rod, and the paint head is connected to the paint box via the paint supply pipe.

[0011] Furthermore, in the above-mentioned painting fixture for the cylindrical components of an aircraft engine nacelle, the paint box is equipped with a pump body for facilitating the pumping of paint.

[0012] Furthermore, in the above-mentioned painting fixture for the cylindrical components of an aircraft engine nacelle, the lifting drying assembly includes a second vertical rail, a second slider, a second mounting plate, a second push rod, a hot air blower, an air outlet, an air outlet pipe, an air inlet pipe, and a filter. The second vertical rail is fixed on a column, and a second slider forming a second linear guide pair with it is installed on the second vertical rail. The second slider is equipped with a second push rod and a hot air blower via the second mounting plate. An air outlet is installed at the movable end of the second push rod. The air outlet is connected to the output end of the hot air blower via the air outlet pipe, and the input end of the hot air blower is connected to a filter via the air inlet pipe.

[0013] Furthermore, in the above-mentioned painting fixture for the cylindrical components of an aircraft engine nacelle, the filter is one of an activated carbon filter, a paint mist cotton plate filter, or a dry paint mist filter.

[0014] The beneficial effects of this utility model are:

[0015] This utility model has a reasonable structural design, mainly consisting of a base, a rotary drive, a column, an annular carrier, an external clamping assembly, a lifting spray painting assembly, and a lifting drying assembly. These components work together to provide positioning and clamping for the nacelle-shaped cylindrical component placed on the annular carrier. The rotary drive drives the annular carrier and the nacelle-shaped cylindrical component to rotate circumferentially. The lifting spray painting assembly paints the inner wall of the nacelle-shaped cylindrical component, and the lifting drying assembly dries the paint layer on the inner wall of the nacelle-shaped cylindrical component. During the drying process, the lifting drying assembly helps absorb harmful gases generated during drying, thus meeting the batch painting needs of the nacelle-shaped cylindrical component.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall usage state of this utility model;

[0019] Figure 2 This is a front view schematic diagram of the heat dissipation and ventilation structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the rotary drive in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the external clamping component in this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting spray painting assembly in this utility model;

[0023] Figure 6 This is a schematic diagram of the lifting drying component in this utility model;

[0024] The components represented by each number in the attached diagram are explained below:

[0025] 1-Base, 2-Rotary drive, 3-Column, 4-Annular carrier, 5-External clamping assembly, 501-Clamping push rod, 502-Push plate, 503-Slide rod, 504-Positioning block, 505-Compression spring, 6-Lifting spray painting assembly, 601-First vertical rail, 602-First slider, 603-First mounting plate, 604-First push rod, 605-Paint box, 606-Spray head, 607-Paint supply pipe, 7-Lifting drying assembly, 701-Second vertical rail, 702-Second slider, 703-Second mounting plate, 704-Second push rod, 705-Hot air blower, 706-Air outlet, 707-Air outlet pipe, 708-Air inlet pipe, 709-Filter, 8-Cylinder cylindrical component, 8-Cylinder cylindrical component, 801-Cylinder body, 802-Annular end plate, 803-Mounting hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-6 As shown, this embodiment provides a painting fixture for a cylindrical component of an aircraft engine nacelle, including a base 1, a rotary actuator 2, a column 3, an annular carrier 4, an external clamping assembly 5, a lifting painting assembly 6, and a lifting drying assembly 7. The rotary actuator 2 and the column 3 located in the vacuum region inside the rotary actuator 2 are mounted on the upper side of the base 1. The annular carrier 4 is mounted on the movable end of the rotary actuator 2. Multiple external clamping assemblies 5 for positioning the cylindrical nacelle component 8 are mounted circumferentially on the annular carrier 4. A lifting painting assembly 6 for painting the inner wall of the cylindrical nacelle component 8 is mounted on one side of the column 3, and a lifting drying assembly 7 for drying the paint layer on the inner wall of the cylindrical nacelle component 8 is mounted on the other side of the column 3.

[0028] In this embodiment, the nacelle cylindrical component 8 includes a cylindrical body 801, with openings at both ends and annular end plates 802 extending inward from the openings. The annular end plates 802 have a plurality of mounting holes 803 evenly distributed around the circumference.

[0029] In this embodiment, the rotary drive 2 consists of a power source, a worm gear, a worm wheel integrated on the slewing bearing, and a housing. The power source drives the worm gear to rotate, and the worm gear meshes with the worm wheel. Due to the helical structure of the worm gear, when the worm gear rotates, it drives the worm wheel to rotate around the central axis.

[0030] In this embodiment, the external clamping assembly 5 includes a clamping push rod 501, a push plate 502, a slide rod 503, a positioning block 504, and a compression spring 505. The cylinder of the clamping push rod 501 is embedded in the annular carrier 4. The movable end of the clamping push rod 501 is equipped with the push plate 502, and the slide rod 503 passes through the push plate 502. The inner end of the slide rod 503 is equipped with a positioning block 504 that matches the shape of the outer wall of the nacelle cylindrical member 8. The outer side of the slide rod 503 is fitted with a compression spring 505, and the two ends of the compression spring 505 are respectively connected to the push plate 502 and the positioning block 504.

[0031] In this embodiment, the lifting spray painting assembly 6 includes a first vertical rail 601, a first slider 602, a first mounting plate 603, a first push rod 604, a paint box 605, a spray head 606, and a paint supply pipe 607. The first vertical rail 601 is fixed on the column 3. The first slider 602, which forms a first linear guide pair with the first vertical rail 601, is mounted on the first vertical rail 601. The first push rod 604 and the paint box 605 are mounted on the first slider 602 via the first mounting plate 603. The spray head 606 is mounted on the movable end of the first push rod 604. The spray head 606 is connected to the paint box 605 via the paint supply pipe 607.

[0032] In this embodiment, the paint box 605 is equipped with a pump body for easy pumping of paint.

[0033] In this embodiment, the lifting drying assembly 7 includes a second vertical rail 701, a second slider 702, a second mounting plate 703, a second push rod 704, a hot air blower 705, an air outlet 706, an air outlet pipe 707, an air inlet pipe 708, and a filter 709. The second vertical rail 701 is fixed to the column 3. A second slider 702, forming a second linear guide pair with the second vertical rail 701, is mounted on the second vertical rail 701. The second push rod 704 and the hot air blower 705 are mounted on the second slider 702 via the second mounting plate 703. An air outlet 706 is mounted on the movable end of the second push rod 704. The air outlet 706 is connected to the output end of the hot air blower 705 via the air outlet pipe 707. The input end of the hot air blower 705 is connected to the filter 709 via the air inlet pipe 708.

[0034] In this embodiment, filter 709 is one of activated carbon filter, paint mist cotton plate filter, and dry paint mist filter.

[0035] A specific application of this embodiment is as follows: This tooling mainly consists of a base 1, a rotary drive 2, a column 3, an annular carrier 4, an external clamping assembly 5, a lifting spray painting assembly 6, and a lifting drying assembly 7. The components work together to provide positioning and clamping for the nacelle cylindrical component 8 placed on the annular carrier 4. The rotary drive 2 drives the annular carrier 4 and the nacelle cylindrical component 8 to rotate circumferentially. The lifting spray painting assembly 6 sprays paint on the inner wall of the nacelle cylindrical component 8. The lifting drying assembly 7 dries the paint layer on the inner wall of the nacelle cylindrical component 8. The lifting drying assembly 7 can help absorb harmful gases generated during the drying process, thereby meeting the batch painting needs of the nacelle cylindrical component 8.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A painting fixture for cylindrical components of aircraft engine nacelles, characterized in that, The device includes a base, a rotary drive, a column, an annular carrier, an external clamping assembly, a lifting painting assembly, and a lifting drying assembly. The rotary drive and the column located in the vacuum area inside the rotary drive are mounted on the upper side of the base. The annular carrier is mounted on the movable end of the rotary drive. Multiple external clamping assemblies for positioning the nacelle cylindrical component are mounted circumferentially on the annular carrier. A lifting painting assembly for painting the inner wall of the nacelle cylindrical component is mounted on one side of the column, and a lifting drying assembly for drying the paint layer on the inner wall of the nacelle cylindrical component is mounted on the other side of the column.

2. The painting fixture for cylindrical components of aircraft engine nacelles according to claim 1, characterized in that, The nacelle cylindrical component includes a cylindrical body with openings at both ends, and annular end plates extending inward from the openings. The annular end plates have a plurality of mounting holes evenly distributed along the circumference.

3. The painting fixture for cylindrical components of aircraft engine nacelles according to claim 2, characterized in that, The rotary drive consists of a power source, a worm gear, a worm wheel integrated on the slewing bearing, and a housing. The power source drives the worm gear to rotate, and the worm gear meshes with the worm wheel. Due to the helical structure of the worm gear, when the worm gear rotates, it drives the worm wheel to rotate around the central axis.

4. The painting fixture for cylindrical components of aircraft engine nacelles according to claim 3, characterized in that, The external clamping assembly includes a clamping push rod, a push plate, a slide rod, a positioning block, and a compression spring. The cylinder of the clamping push rod is embedded in the annular carrier. A push plate is installed at the movable end of the clamping push rod. A slide rod passes through the push plate. A positioning block that matches the shape of the outer wall of the nacelle cylindrical component is installed at the inner end of the slide rod. A compression spring is sleeved on the outer side of the slide rod. The two ends of the compression spring are connected to the push plate and the positioning block, respectively.

5. The painting fixture for cylindrical components of an aircraft engine nacelle according to claim 4, characterized in that, The lifting spray painting assembly includes a first vertical rail, a first slider, a first mounting plate, a first push rod, a paint box, a spray head, and a paint supply pipe. The first vertical rail is fixed on a column, and a first slider forming a first linear guide pair with it is installed on the first vertical rail. The first push rod and the paint box are mounted on the first slider via the first mounting plate. The spray head is installed on the movable end of the first push rod, and the spray head is connected to the paint box via the paint supply pipe.

6. The painting fixture for cylindrical components of an aircraft engine nacelle according to claim 5, characterized in that, The paint box is equipped with a pump body for easy pumping of paint.

7. The painting fixture for cylindrical components of an aircraft engine nacelle according to claim 6, characterized in that, The lifting drying assembly includes a second vertical rail, a second slider, a second mounting plate, a second push rod, a hot air blower, an air outlet, an air outlet pipe, an air inlet pipe, and a filter. The second vertical rail is fixed on a column, and a second slider forming a second linear guide pair with it is installed on the second vertical rail. The second push rod and the hot air blower are mounted on the second slider via the second mounting plate. An air outlet is installed on the movable end of the second push rod, and the air outlet is connected to the output end of the hot air blower via the air outlet pipe. The input end of the hot air blower is connected to the filter via the air inlet pipe.

8. The painting fixture for cylindrical components of an aircraft engine nacelle according to claim 7, characterized in that, The filter is one of the following: activated carbon filter, paint mist cotton plate filter, or dry paint mist filter.

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