Fixing tool for aerospace supporting legs

Abstract

The utility model provides a fixing tool for an aerospace support leg, which comprises a fixing plate, the top of the fixing plate is correspondingly provided with a placing groove matched with the aerospace support leg, and the periphery of the bottom of the placing groove is correspondingly provided with an annular rubber ring; a plurality of air exhaust grooves which are communicated in a staggered manner are correspondingly formed in the bottom of the placing groove and are correspondingly positioned in an area surrounded by the rubber ring; an air exhaust channel is correspondingly arranged in the fixing plate, one end of the air exhaust channel is communicated with the bottom of the air exhaust groove, and the other end of the air exhaust channel is connected with an external negative pressure vacuum pump through a connecting pipe; rectangular pressing blocks capable of rotating and pressing and limiting are correspondingly installed near the four corners of a groove opening of the containing groove in the fixing plate, and the supporting feet for aerospace can be pressed and fixed through the rectangular pressing blocks. The overall use and operation are very convenient, the problem that machining is inconvenient due to the fact that the supporting foot for aerospace is not prone to being directly clamped and fixed is effectively solved, the machining efficiency is guaranteed, and practicability is high.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of aerospace parts production, and in particular to a fixing tool for an aerospace support leg. Background Art

[0002] Aerospace refers to the navigation activities of manned or unmanned aircraft or spacecraft in and outside the Earth's atmosphere, also known as space flight or cosmic navigation. Aerospace is a way for humans to expand the atmosphere and outer space. After more than a hundred years of rapid development, aerospace has become one of the most active and influential fields of science and technology in the 21st century. The major achievements in this field mark the latest development of human civilization and also represent the advanced level of a country's science and technology.

[0003] There are many products manufactured in the aerospace industry, such as aircraft, rockets and other spacecraft, whose internal structures are quite complex and contain a lot of precision parts, such as collars, wall panels, legs, etc. Among them, aerospace legs usually need to be processed by drilling and grinding during the production process. However, due to the irregular external shape of aerospace legs, it is not easy to clamp and fix them during processing, which makes the processing inconvenient and greatly affects the processing efficiency. Therefore, it is necessary to design a special fixing tool to solve the above problems.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model provides a fixing fixture of an aerospace support leg, which is used to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution:

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: a fixing tool for an aerospace support foot, including a fixing plate, a placement groove compatible with the aerospace support foot is opened on the top of the fixing plate, and an annular rubber ring is installed around the bottom of the placement groove; a plurality of staggered and interconnected exhaust grooves are opened at the bottom of the placement groove, and the exhaust grooves are located in the area surrounded by the rubber ring; an exhaust channel is provided in the fixing plate, one end of the exhaust channel is connected to the bottom of the exhaust groove, and the other end of the exhaust channel is connected to an external negative pressure vacuum pump through a connecting pipe; rotatable and clamping rectangular pressure blocks are installed near the four corners of the placement groove on the fixing plate, and the aerospace support foot can be clamped and fixed by the rectangular pressure blocks.

[0009] Furthermore, threaded holes are correspondingly opened near the four corners of the top slot of the fixing plate, and clamping screws can be installed in the threaded holes accordingly. A through hole is correspondingly opened in the middle of the rectangular pressing block, and the clamping screw can be screwed into the corresponding threaded hole after passing through the through hole on the rectangular pressing block.

[0010] Furthermore, an annular mounting groove is correspondingly provided around the bottom of the placement groove, and the rubber ring is correspondingly installed in the annular mounting groove.

[0011] Furthermore, the air extraction grooves include a plurality of longitudinal air extraction grooves distributed at intervals and a plurality of transverse air extraction grooves distributed at intervals, and the bottoms of the plurality of longitudinal air extraction grooves are interconnected with the bottoms of the plurality of transverse air extraction grooves.

[0012] Furthermore, short rods are correspondingly provided near the four corners of the top notch of the placement slot on the fixed plate, and one side of the rectangular pressing block and the short rods can be correspondingly connected through a spring; when the spring is in a natural state, the rectangular pressing block is deflected at a certain angle so that the rectangular pressing block completely avoids the top of the placement slot.

[0013] 3. Beneficial effects:

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] The utility model adopts a fixing plate, and a placement groove is correspondingly arranged on the fixing plate, and a plurality of staggered and interconnected exhaust grooves are correspondingly arranged at the bottom of the placement groove, and an exhaust channel is correspondingly arranged. During the installation work, through the coordinated use of a negative pressure vacuum machine, the aerospace support foot can be effectively adsorbed and fixed in the placement groove on the fixing plate, thereby realizing the fixation of the aerospace support foot; and the installation setting of the rubber ring in the placement groove can also better ensure the adsorption and fixing effect of the aerospace support foot in the placement groove.

[0016] To further ensure the fixing effect, the utility model also arranges rotatable and clamped rectangular pressure blocks near the four corners of the top of the placement slot on the fixed plate. During installation, the long side of the rectangular pressure block is clamped and fixed to the top of the aerospace support foot by tightening the clamping screws, thereby further ensuring its fixing effect. When disassembling and replacing the support foot, the clamping screws are directly loosened, and the rectangular pressure block will automatically deviate to a position avoiding the top of the placement slot under the action of the spring. At this time, the aerospace support foot can be smoothly removed and replaced. The overall use and operation is very convenient, which effectively solves the problem of inconvenience in processing caused by the difficulty in directly clamping and fixing the aerospace support foot, thereby ensuring the processing efficiency. The overall structural design is simple and practical.

[0017] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the fixed tooling of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the top of the fixed plate of the utility model;

[0020] Figure 3 It is a partial cross-sectional structural schematic diagram of the aerospace support foot pressing installation of the utility model;

[0021] Figure 4 It is a partially enlarged schematic diagram of the installation of the rectangular pressing block of the utility model.

[0022] Reference numerals:

[0023] 1. Fixing plate; 11. Placement groove; 12. Exhaust groove; 121. Longitudinal exhaust groove; 122. Horizontal exhaust groove; 13. Exhaust channel; 14. Annular mounting groove; 15. Threaded hole; 2. Rubber ring; 3. Connecting pipe; 4. Rectangular pressure block; 5. Clamping screw; 6. Spring; 7. Short rod; 8. Aerospace support foot. DETAILED DESCRIPTION

[0024] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0028] Refer to the attached Figure 1-4 , a fixing fixture for an aerospace support foot of the present embodiment comprises a fixing plate 1, and a placement groove 11 adapted to the aerospace support foot 8 is correspondingly provided on the top of the fixing plate 1. An annular rubber ring 2 is correspondingly installed around the bottom of the placement groove 11. A plurality of staggered and interconnected exhaust grooves 12 are correspondingly provided at the bottom of the placement groove 11, and the exhaust groove 12 is correspondingly located in the area surrounded by the rubber ring 2. An exhaust channel 13 is correspondingly provided in the fixing plate 1, one end of which is connected to the bottom of the exhaust groove 12, and the other end of which is connected to an external negative pressure vacuum pump through a connecting pipe 3, and the aerospace support foot 8 can be fixed in the placement groove 11 by adsorption. A rotatable and clamping rectangular pressing block 4 is correspondingly installed near the four corners of the top notch of the placement groove 11 on the fixing plate 1, and the aerospace support foot 8 can be further clamped and fixed by the rectangular pressing block 4.

[0029] Specifically, an annular mounting groove 14 is correspondingly provided around the bottom of the placement groove 11, and the rubber ring 2 is correspondingly installed in the annular mounting groove 14, and the top of the rubber ring 2 can be slightly raised from the bottom of the placement groove 11. The air extraction groove 12 includes a plurality of longitudinal air extraction grooves 121 and a plurality of transverse air extraction grooves 122 that are spaced apart. The bottoms of the plurality of longitudinal air extraction grooves 121 and the bottoms of the plurality of transverse air extraction grooves 122 are interconnected, and the longitudinal air extraction grooves 121 and the transverse air extraction grooves 122 are both located in the area surrounded by the annular mounting groove 14. This embodiment can effectively ensure the adsorption and fixing effect of the aerospace support foot 8 in the placement groove 11 by installing an annular rubber ring 2 around the bottom of the placement groove 11.

[0030] Threaded holes 15 are correspondingly provided near the four corners of the top notch of the placement groove 11 on the fixing plate 1, and clamping screws 5 can be installed in the threaded holes 15 accordingly. A through hole is correspondingly provided in the middle of the rectangular pressing block 4, and the clamping screw 5 can be threaded into the corresponding threaded hole 15 after passing through the through hole on the rectangular pressing block 4. By adjusting the position of the rectangular pressing block 4 and tightening the clamping screw 5, the long side of the rectangular pressing block 4 can be used to correspondingly clamp and fix the aerospace support foot 8.

[0031] In addition, short rods 7 may be provided near the four corners of the top notch of the placement slot 11 on the fixing plate 1. The short rods 7 are fixed to the fixing plate 1. The short rods 7 and the threaded holes 15 on one side thereof may be distributed obliquely along the diagonal of the placement slot 11, and the distance between the short rods 7 and the placement slot 11 may be farther than the distance between the threaded holes 15 on one side thereof and the placement slot 11. One side of the rectangular pressing block 4 may be connected to the short rods 7 via a spring 6. When the spring 6 is in a natural state, the rectangular pressing block 4 is deflected at a certain angle so that the rectangular pressing block 4 completely avoids the top of the placement slot 11. At this time, the aerospace support foot 8 may be smoothly installed and disassembled without being hindered by the rectangular pressing block 4.

[0032] During operation, the aerospace support foot 8 can be first inserted into the placement groove 11 on the fixed plate 1, and then the negative pressure vacuum pump can be turned on to achieve the initial adsorption and fixation of the aerospace support foot 8. Then the worker can manually deflect the position of the rectangular pressing block 4 in sequence so that the long side of the rectangular pressing block 4 can be pressed on the top of the aerospace support foot 8, and then tighten the clamping screw 5, so that the four corners of the aerospace support foot 8 can be further compressed by the rectangular pressing block 4. At this time, the worker installs the fixed plate 1 on the workbench of the machining center (specifically, the fixed plate 1 can be clamped and fixed by a clamp on the workbench of the machining center, or it can be fixed by magnet adsorption. The specific fixing method is very common in the prior art and will not be expanded here), and then the surface of the aerospace support foot 8 on the fixed plate 1 can be processed. If the aerospace support foot 8 needs to be disassembled and replaced, just turn off the negative pressure vacuum pump, loosen all the clamping screws 5 in sequence, and the rectangular pressing block 4 will automatically deviate to a position away from the top of the placement groove 11 under the action of the spring 6, and then the aerospace support foot 8 can be removed and replaced smoothly. It is worth noting that the outlet at the other end of the exhaust channel 13 can be arranged on one side of the fixing plate 1 or at the bottom of the fixing plate 1 according to actual installation requirements; the clamping screw 5 can be replaced by a butterfly screw to facilitate workers' operation.

[0033] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A fixing fixture for an aerospace support leg, characterized in that: The invention comprises a fixing plate (1), wherein a placement groove (11) adapted to an aerospace support foot (8) is correspondingly provided on the top of the fixing plate (1), and an annular rubber ring (2) is correspondingly installed around the bottom of the placement groove (11); a plurality of staggered and interconnected exhaust grooves (12) are correspondingly provided at the bottom of the placement groove (11), and the exhaust grooves (12) are correspondingly located in the area surrounded by the rubber ring (2); an exhaust channel (13) is correspondingly provided inside the fixing plate (1), one end of the exhaust channel (13) is connected to the bottom of the exhaust groove (12), and the other end of the exhaust channel (13) is connected to an external negative pressure vacuum pump via a connecting pipe (3); and rectangular pressing blocks (4) that can rotate and clamp and limit are correspondingly installed near the four corners of the notch of the placement groove (11) on the fixing plate (1), and the aerospace support foot (8) can be clamped and fixed by the rectangular pressing blocks (4).

2. The fixing fixture of the aerospace support leg according to claim 1, characterized in that: The fixing plate (1) has threaded holes (15) correspondingly formed near the four corners of the top notch of the placement slot (11), and clamping screws (5) can be installed in the threaded holes (15). The rectangular pressing block (4) has a through hole correspondingly formed in the middle, and the clamping screw (5) can be screwed into the corresponding threaded hole (15) after passing through the through hole on the rectangular pressing block (4).

3. The fixing fixture of the aerospace support leg according to claim 1, characterized in that: The bottom of the placement groove (11) is provided with an annular installation groove (14) correspondingly around it, and the rubber ring (2) is correspondingly installed in the annular installation groove (14).

4. The fixing fixture of the aerospace support leg according to claim 1, characterized in that: The air extraction grooves (12) comprise a plurality of longitudinal air extraction grooves (121) distributed at intervals and a plurality of transverse air extraction grooves (122) distributed at intervals, and the groove bottoms of the plurality of longitudinal air extraction grooves (121) and the groove bottoms of the plurality of transverse air extraction grooves (122) are interconnected.

5. The fixing fixture of the aerospace support leg according to claim 2, characterized in that: Short rods (7) are also provided at the four corners of the top notch of the placement slot (11) on the fixing plate (1), and one side of the rectangular pressing block (4) and the short rods (7) can be connected to each other via a spring (6); when the spring (6) is in a natural state, the rectangular pressing block (4) is deflected at a certain angle, so that the rectangular pressing block (4) completely avoids the top of the placement slot (11).

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