Fixing seat for aerospace exhaust nozzle machining
By designing a fixed seat suitable for aerospace tail nozzle processing, using hydraulic cylinders and adjustable clamps, the problems of inaccurate positioning and insufficient adaptability of traditional clamps are solved, and efficient and stable clamping and precise processing of multiple models of tail nozzles are achieved.
Patent Information
- Application Number
- CN202422336900.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Traditional aerospace tail nozzle fixing fixtures are difficult to achieve precise positioning and stable clamping, and cannot adapt to multiple models of tail nozzles, resulting in low processing efficiency, high cost and unstable performance.
A fixed seat for machining aerospace tail nozzle is designed, including a base, fixing device and temporary support device. It adopts hydraulic cylinders and adjustable clamps, which can adapt to tail nozzles of different sizes and shapes, and improve stability and adaptability through multi-point fixing and adjustable clamping methods.
It realizes efficient and stable clamping of multiple models of tail nozzles, improves processing efficiency and reduces manufacturing costs, and enhances the processing accuracy and service life of tail nozzles.
Smart Images
Figure CN223172789U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aerospace tail nozzle fixing devices, and particularly relates to a fixing seat for processing aerospace tail nozzles. Background Technique
[0002] In the aerospace field, as a key component of the engine, the machining accuracy and stability of the tail nozzle directly affect the overall performance and reliability of the engine. In the field of tail nozzle machining, when traditional fixing jigs clamp the tail nozzle, due to the special shape of the tail nozzle, especially its thin-wall structure, it is often difficult to achieve precise positioning and stable clamping. When the traditional jig clamps, the problem of uneven clamping force distribution is likely to occur, resulting in excessive local stress on the tail nozzle and deformation, thus affecting the performance and service life of the tail nozzle. Moreover, there are differences in the structure and size of different models of tail nozzles, and there are also variable-diameter structures in the tail nozzles. The traditional jigs cannot meet the fixing and processing requirements of various models of tail nozzles, and special jigs need to be equipped for each model of tail nozzle, which greatly increases the manufacturing cost. Changing different jigs also increases the manufacturing time and reduces the processing efficiency of the tail nozzle.
[0003] Based on the above description, the traditional fixing jigs for tail nozzles have deficiencies in terms of positioning accuracy, stability and adaptability, and the traditional jigs are cumbersome to operate, increasing the operation time and intensity of workers. Therefore, the utility model proposes a fixing seat for processing aerospace tail nozzles. Content of the Utility Model
[0004] The purpose of the utility model is to provide a fixing seat for processing aerospace tail nozzles, which can arbitrarily adjust the clamping position of the tail nozzle, and can adapt to the fixation of tail nozzles with various size specifications and shapes, improving the stability of fixation.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A fixing base for processing an aerospace tail nozzle, comprising a base, wherein a fixing device and a temporary supporting device are arranged on the base. The fixing device includes three groups of fixing components, and the three groups of fixing components are sequentially arranged at intervals from left to right on the base. Each group of fixing components includes a supporting seat, a fixing ring and four clamping members. The supporting seat is fixedly arranged on the base, the fixing ring is vertically arranged on the supporting seat, and the four clamping members are respectively fixedly arranged at the upper, lower, left and right positions on the inner surface of the fixing ring. The temporary supporting device includes two groups of temporary supporting components, and the temporary supporting components are fixedly arranged between the two groups of fixing components. Each group of temporary supporting components includes two second hydraulic cylinders, a second mounting seat and a supporting plate. The second hydraulic cylinders are fixedly arranged on the base, the two ends of the bottom of the second mounting seat are fixedly arranged on the tops of the telescopic ends of the two second hydraulic cylinders, and the supporting plate is fixedly arranged on the top of the second mounting seat. The supporting plate is of an arc-shaped structure.
[0007] As a preferred technical solution, the clamping member includes a first hydraulic cylinder, a first mounting seat, a clamping plate and a connecting block. The first hydraulic cylinder is fixedly arranged on the inner surface of the fixing ring, the first mounting seat is fixedly connected with the telescopic end of the first hydraulic cylinder, a groove is formed on one side of the first mounting seat away from the first hydraulic cylinder, one end of the connecting block is rotatably connected with the side wall of the groove through a rotating shaft, the other end of the connecting block is fixedly connected with the clamping plate, and the clamping plate is of an arc-shaped structure.
[0008] As a preferred technical solution, a plurality of rolling balls are arranged on the supporting plate, the rolling balls are embedded on the top of the supporting plate, and the rolling balls are rotatably connected with the supporting plate.
[0009] As a preferred technical solution, a bolt is arranged on the first mounting seat, the bolt penetrates through the groove on the first mounting seat and the connecting block, and a nut is threadedly connected after the bolt passes through the first mounting seat.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. In the utility model, through the temporary supporting component, the tail nozzle can be rotated or the horizontal position can be adjusted at any time, the clamping position of the clamping member can be adjusted according to actual needs, and the area to be processed is exposed in a place convenient for workers to operate, thereby improving the processing efficiency.
[0012] 2. In the utility model, the clamping plate of the clamping member can swing left and right along the radial direction of the fixing ring, so that the clamping plate can be automatically adjusted to fit different specifications of the tail nozzle as much as possible, increasing the contact area between the clamping plate and the tail nozzle and improving the fixing stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following further describes in detail the specific embodiments of the utility model in conjunction with the drawings:
[0014] Figure 1 This is a schematic structural diagram of the present utility model;
[0015] Figure 2 This is a sectional view of the present utility model;
[0016] Among them, the reference numerals are as follows:
[0017] 1 - Base, 2 - Support base, 3 - Fixed ring, 4 - First hydraulic cylinder, 5 - First mounting seat, 6 - Clamping plate, 7 - Connecting block, 8 - Second hydraulic cylinder, 9 - Second mounting seat, 10 - Support plate, 11 - Ball. Detailed implementation manners
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Therefore, the detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0020] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is commonly placed. It is only for the convenience of describing the present application 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 a limitation to the present application. In the description of the present application, it should also be noted that unless otherwise clearly defined and limited, if terms such as "set", "installed", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0021] Embodiment
[0022] As Figure 1-2 shown, a fixing seat for processing an aerospace tail nozzle includes a base 1. A fixing device and a temporary support device are provided on the base 1. The fixing device includes three groups of fixing components. The three groups of fixing components are arranged at intervals from left to right on the base 1 in sequence. Each group of fixing components includes a support seat 2, a fixing ring 3 and four clamping members. The support seat 2 is fixedly arranged on the base 1. The fixing ring 3 is vertically arranged on the support seat 2. The four clamping members are respectively fixedly arranged at the upper, lower, left and right positions on the inner surface of the fixing ring 3. The temporary support device includes two groups of temporary support components. The temporary support components are fixedly arranged between the two groups of fixing components. Each group of temporary support components includes two second hydraulic cylinders 8, a second mounting seat 9 and a support plate 10. The second hydraulic cylinder 8 is fixedly arranged on the base 1. The two ends of the bottom of the second mounting seat 9 are fixedly arranged at the top of the telescopic ends of the two second hydraulic cylinders 8. The support plate 10 is fixedly arranged on the top of the second mounting seat 9. The support plate 10 is of an arc-shaped structure.
[0023] It should be noted that the tail nozzle is fixed by the provided fixing device, which is convenient for processing. The temporary support of the tail nozzle is realized by the provided temporary support device. Specifically, the tail nozzle is clamped and fixed from three positions by the three groups of fixing components. The tail nozzle passes through the three fixing rings 3 from left to right in sequence. The two groups of temporary support components are used to temporarily support the tail nozzle, adjust the horizontal position and angle of the tail nozzle, so as to expose the area to be processed. Then, the clamping members are controlled to converge from the four directions of up, down, left and right to the middle to clamp and fix the tail nozzle.
[0024] In some feasible embodiments, the clamping member includes a first hydraulic cylinder 4, a first mounting seat 5, a clamping plate 6 and a connecting block 7. The first hydraulic cylinder 4 is fixedly arranged on the inner surface of the fixing ring 3. The first mounting seat 5 is fixedly connected with the telescopic end of the first hydraulic cylinder 4. A groove is opened on the side of the first mounting seat 5 away from the first hydraulic cylinder 4. One end of the connecting block 7 is rotatably connected with the side wall of the groove through a rotating shaft. The other end of the connecting block 7 is fixedly connected with the clamping plate 6. The clamping plate 6 is of an arc-shaped structure. When the first hydraulic cylinder 4 extends, it drives the first mounting seat 5 to move towards the center of the fixing ring 3. The first mounting seat 5 drives the clamping plate 6 to move, so that the clamping plate 6 moves to contact and clamp the tail nozzle. In particular, since not all tail nozzles are straight cylinder structures, some tail nozzles are variable diameter structures. The clamping plate 6 is rotatably connected with the first mounting seat 5 through the connecting block 7, so that the clamping plate 6 can swing left and right along the radial direction of the fixing ring 3 relative to the first mounting seat 5. When the clamping plate 6 clamps and fixes the tail nozzle, the clamping plate 6 can be adjusted according to the inclination of the outer surface of the tail nozzle to ensure that the clamping plate 6 can fit the outer surface of the tail nozzle as much as possible and increase the contact area between the clamping plate 6 and the tail nozzle.
[0025] It should be noted that bolts are provided on the first mounting seat. The bolts pass through the grooves on the first mounting seat and the connecting block. After the bolts pass through the first mounting seat, nuts are threadedly connected. Tightening the nuts can enhance the friction between the connecting block and the side wall of the groove, so that the connecting block cannot rotate relative to the first mounting seat, thereby fixing the clamping plate 6 at a specific angle.
[0026] In some feasible embodiments, a number of balls 11 are provided on the support plate 10. The balls 11 are embedded in the top of the support plate 10. The balls 11 are rotatably connected to the support plate 10. The balls 11 can rotate relative to the support plate 10. When the tail nozzle is placed on the two sets of temporary support components, the balls 11 can reduce the friction between the tail nozzle and the support plate 10, facilitating the worker to move the tail nozzle left and right or rotate it.
[0027] During use, first control the first hydraulic cylinder 4 to contract, and at the same time control the second hydraulic cylinder 8 to extend. Then pass the tail nozzle through the fixing ring 3 and place it on the support plate 10. According to the processing requirements, rotate or move the tail nozzle left and right so that the area to be processed on the tail nozzle is exposed. Then control the first hydraulic cylinder 4 to extend, drive the clamping plate 6 to close inwards to clamp and fix the tail nozzle, and then proceed with the processing.
[0028] When the area to be processed cannot be exposed at one time, a part of the area can be processed first, and then control the first hydraulic cylinder 4 to contract to release the fixation of the tail nozzle. At this time, the tail nozzle is located on the support plate 10. Rotate or move the tail nozzle left and right again to expose the area to be processed, and then control the first hydraulic cylinder 4 to extend to fix the tail nozzle and then process it. Repeat the above steps until the processing of the tail nozzle is completed.
[0029] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here according to the above description. The scope of the present disclosure is defined by the appended claims.
Claims
1. A fixing base for processing an aerospace tail nozzle, comprising a base (1), characterized in that, The base (1) is provided with a fixing device and a temporary support device. The fixing device includes three groups of fixing components. The three groups of fixing components are arranged at intervals from left to right on the base (1). Each group of fixing components includes a support base (2), a fixing ring (3) and four clamping members. The support base (2) is fixedly arranged on the base (1). The fixing ring (3) is vertically arranged on the support base (2). The four clamping members are respectively fixedly arranged at the upper, lower, left and right positions on the inner surface of the fixing ring (3). The temporary support device includes two groups of temporary support components. The temporary support components are fixedly arranged between the two groups of fixing components. Each group of temporary support components includes two second hydraulic cylinders (8), a second mounting seat (9) and a support plate (10). The second hydraulic cylinder (8) is fixedly arranged on the base (1). The two ends of the bottom of the second mounting seat (9) are fixedly arranged at the tops of the telescopic ends of the two second hydraulic cylinders (8). The support plate (10) is fixedly arranged on the top of the second mounting seat (9). The support plate (10) is of an arc-shaped structure.
2. The fixing seat for processing an aerospace tail nozzle according to claim 1, wherein, The clamping member includes a first hydraulic cylinder (4), a first mounting seat (5), a clamping plate (6) and a connecting block (7). The first hydraulic cylinder (4) is fixedly arranged on the inner surface of the fixing ring (3). The first mounting seat (5) is fixedly connected with the telescopic end of the first hydraulic cylinder (4). A groove is formed on one side of the first mounting seat (5) away from the first hydraulic cylinder (4). One end of the connecting block (7) is rotatably connected to the side wall of the groove through a rotating shaft. The other end of the connecting block (7) is fixedly connected with the clamping plate (6). The clamping plate (6) is of an arc-shaped structure.
3. The fixing seat for processing an aerospace tail nozzle according to claim 1, characterized in that, A number of balls (11) are arranged on the support plate (10). The balls (11) are embedded in the top of the support plate (10). The balls (11) are rotatably connected with the support plate (10).
4. The fixing seat for processing an aerospace tail nozzle according to claim 2, characterized in that, A bolt is arranged on the first mounting seat (5). The bolt passes through the groove on the first mounting seat (5) and the connecting block (7). After passing through the first mounting seat (5), the bolt is threadedly connected with a nut.