Positioning tool for processing aviation parts

Abstract

The utility model belongs to tool fixture technical field, concretely is a kind of positioning tool for aviation spare part processing, including bottom plate, still include: fixed link, fixedly connected in bottom plate both sides side wall;Placing plate, fixedly connected in fixed link top side wall;Driving assembly one, is set up in bottom plate top wall, the main jaw is set up in driving assembly one mobile end, and the main jaw is close to the side wall of placing plate and is provided with clamping head subassembly;First guide rail, fixedly connected in bottom plate both sides;The utility model provides a kind of positioning tool for aviation spare part processing, and the position correction before processing to workpiece and the positioning of irregular workpiece are realized by the cooperation of part, effectively reduce the processing error caused by inaccurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a positioning tooling for processing aerospace parts. Background Technology

[0002] In the aviation industry, aviation components serve as the core carriers for aircraft to achieve flight functions, ensure operational safety, and enhance performance. Their processing precision, stability, and consistency directly determine the overall reliability and flight quality of aircraft. Because aviation components generally exhibit complex structures, stringent material requirements, and extremely high precision standards, precise, stable, and adaptable positioning of components during processing becomes a crucial link in ensuring processing quality and improving production efficiency.

[0003] A search revealed an existing patent (publication number: CN222038294U) that discloses a tooling fixture for machining aerospace parts. The fixture includes a base with an adjustment groove in the middle. A connecting plate passes through the adjustment groove. A first connecting hole is formed on the surface of the connecting plate. A second connecting hole is formed at the top of the adjustment groove. A positioning groove is formed at the bottom of the adjustment groove, directly below the second connecting hole. Bolts pass through the second and first connecting holes. The advantages are: this invention allows adjustment of the distance between the two bases along the connecting plate according to the length of the aerospace part, ensuring a secure and stable clamping when machining long aerospace parts and facilitating adjustment of the horizontal dimensions of the tooling fixture; during machining, scattered debris falls quickly to the top of the support rod, maintaining the stable clamping of the aerospace part.

[0004] However, in actual use, the above solution can only directly position the part to be processed. It cannot dynamically correct the position based on the actual placement deviation of the part after positioning and before formal processing. This means that if there is an initial positioning error in the part, the subsequent processing accuracy will be directly affected, making it difficult to guarantee the stability of the finished product quality. In addition, the clamping plate is difficult to position irregular workpieces and has limited adaptability. When facing workpieces with irregular contours or irregular structures, the clamping plate is difficult to form a stable fit with the object surface, which not only fails to achieve accurate positioning.

[0005] Therefore, this utility model provides a positioning fixture for processing aerospace parts. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art where the position cannot be corrected before processing and it is difficult to fix irregular workpieces, and to propose a positioning fixture for processing aerospace parts.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A positioning fixture for machining aerospace parts includes a base plate and further includes: The fixing rod is fixedly connected to the side walls on both sides of the base plate; Placement plate, fixedly connected to the top side wall of the fixing rod; A drive component 1 is disposed on the top wall of the base plate. The moving end of the drive component 1 is provided with a main jaw, and a clamping head assembly is disposed near the side wall of the placement plate. The first guide rail is fixedly connected to both sides of the base plate; The correction component is located on both sides of the base plate. The correction component includes a connector fixedly connected to the outer wall of one side of the main jaw, a second drive assembly located on the top of the first guide rail, and sliding assemblies located on both sides of the base plate. The drive end of the second drive assembly has a guide groove. The top of the moving end of the sliding assembly has an L-shaped rod. The L-shaped rod is slidably connected to the guide groove. A straight plate is fixedly connected to the end of the L-shaped rod near the placement plate.

[0008] As a preferred technical solution of this application, the drive assembly includes a motor fixedly connected to the top wall of one side of the base plate, two slide rails fixedly connected to the top wall of the base plate, and two baffles fixedly connected to the top wall of the base plate. A bidirectional lead screw is fixedly connected to the output end of the motor. The two ends of the bidirectional lead screw are rotatably connected to the baffles. Two slides are threadedly connected to the outer wall of the bidirectional lead screw. The slides are slidably connected to the slide rails and fixedly connected to the main jaws.

[0009] As a preferred technical solution of this application, the clamping head assembly includes two primary jaws rotatably connected inside the main jaw, a secondary jaw rotatably connected inside the primary jaw, and two tertiary jaws rotatably connected inside the secondary jaw.

[0010] As a preferred technical solution of this application, the second driving component includes a sliding block slidably connected to the outer wall of the first guide rail and a horizontal plate fixedly connected to the end of the connector near the placement plate, wherein the sliding block is fixedly connected to the connector.

[0011] As a preferred technical solution of this application, the sliding assembly includes a second guide rail fixedly connected to the middle section of both sides of the base plate, a slide block fixedly connected to the top wall of the second guide rail, and the slide block fixedly connected to the L-shaped rod.

[0012] As a preferred technical solution of this application, the outer wall of the straight plate is provided with a rubber layer.

[0013] Compared with the prior art, this utility model provides a positioning fixture for processing aerospace parts, which has the following advantages: 1. The positioning fixture for processing aerospace parts described in this utility model can correct the position of the workpiece before processing by means of a correction component, and calibrate the offset workpiece to a preset processing benchmark, effectively reducing the processing error caused by inaccurate positioning; it can improve the processing accuracy of aerospace parts and reduce the scrap rate and rework cost.

[0014] 2. The positioning fixture for processing aerospace parts described in this utility model achieves positioning of irregular workpieces through a clamping head assembly, which can significantly improve the positioning stability and accuracy of irregular aerospace parts, reduce processing deviations caused by improper clamping, and adapt to various irregular workpiece specifications, reduce the customization cost of special fixtures, and shorten changeover time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the bidirectional lead screw in this utility model; Figure 4 This is a three-dimensional structural diagram of the placement plate in this utility model; Figure 5 This is a three-dimensional structural diagram of the straight plate in this utility model; Figure 6 This is a cross-sectional structural diagram of the first-stage jaw in this utility model.

[0016] In the picture: 1. Base plate; 101. Motor; 102. Double-acting lead screw; 103. Slide table; 104. Slide rail; 105. Baffle; 2. Fixing rod; 201. Placement plate; 3. Main jaws; 301. Primary jaws; 302. Secondary jaws; 303. Tertiary jaws; 4. Connecting parts; 401. Sliding block; 402. First guide rail; 5. Horizontal plate; 501. Guide groove; 502. L-shaped rod; 503. Straight plate; 504. Slide seat; 505. Second guide rail. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0018] Reference Figure 1-6 A positioning fixture for machining aerospace parts includes a base plate 1, and further includes: Fixed rod 2 is fixedly connected to the two side walls of the base plate 1; Placement plate 201 is fixedly connected to the top side wall of fixing rod 2; Drive component one is set on the top wall of the base plate 1. The moving end of drive component one is provided with main jaw 3. The main jaw 3 is provided with a clamping head assembly near the side wall of the placement plate 201. Drive component one drives the main jaw 3 and the clamping head assembly to move. The clamping head assembly is used to clamp and position the workpiece. The first guide rail 402 is fixedly connected to both sides of the base plate 1; The correction components are located on both sides of the base plate 1. The correction components include a connector 4 fixedly connected to the outer wall of one side of the main jaw 3, a second drive assembly located on the top of the first guide rail 402, and sliding assemblies located on both sides of the base plate 1. The drive end of the second drive assembly has a guide groove 501. The top of the moving end of the sliding assembly has an L-shaped rod 502. The L-shaped rod 502 is slidably connected to the guide groove 501. The movement of the main jaw 3 drives the connector 4 to move, thereby driving the drive end of the second drive assembly to move, so that the L-shaped rod 502 slides on the side wall of the guide groove 501, driving the moving end of the sliding assembly to move. A straight plate 503 is fixedly connected to the end of the L-shaped rod 502 near the placement plate 201. The L-shaped rod 502 drives the straight plate 503 to move.

[0019] The drive assembly includes a motor 101 fixedly connected to the top wall of one side of the base plate 1, two slide rails 104 fixedly connected to the top wall of the base plate 1, and two baffles 105 fixedly connected to the top wall of the base plate 1. A bidirectional lead screw 102 is fixedly connected to the output end of the motor 101. The motor 101 drives the bidirectional lead screw 102. Both ends of the bidirectional lead screw 102 are rotatably connected to the baffles 105. Two slides 103 are threadedly connected to the outer wall of the bidirectional lead screw 102. The slides 103 move outside the bidirectional lead screw 102. The baffles 105 limit the movement of the slides 103. The slides 103 are slidably connected to the slide rails 104. The slide rails 104 have a guiding function. The slides 103 are fixedly connected to the main jaws 3. The slides 103 drive the main jaws 3 to move.

[0020] The clamping head assembly includes two primary jaws 301 rotatably connected inside the main jaw 3. A secondary jaw 302 is rotatably connected inside the primary jaw 301. Two tertiary jaws 303 are rotatably connected inside the secondary jaws 302. Each jaw moves with the slide table 103 and rotates according to the shape of the workpiece.

[0021] The second drive assembly includes a sliding block 401 slidably connected to the outer wall of the first guide rail 402 and a horizontal plate 5 fixedly connected to the connector 4 near the end of the placement plate 201. The sliding block 401 is fixedly connected to the connector 4. The connector 4 drives the sliding block 401 to move outside the first guide rail 402. At the same time, the connector 4 drives the horizontal plate 5 to move, so that the L-shaped rod 502 slides on the outer wall of the guide groove 501.

[0022] The sliding assembly includes a second guide rail 505 fixedly connected to the middle section of both sides of the base plate 1. A slide block 504 is fixedly connected to the top wall of the second guide rail 505. The slide block 504 is fixedly connected to an L-shaped rod 502. The L-shaped rod 502 drives the slide block 504 to move outside the second guide rail 505.

[0023] The outer wall of the 503 straight plate is equipped with a rubber layer. The high friction of the rubber material can enhance the grip stability and prevent slipping and falling off during use.

[0024] Specifically, when using this positioning fixture for machining aerospace parts: first, place the workpiece to be processed stably on the placement plate 201; Then the motor 101 is started, and the motor 101 drives the bidirectional lead screw 102 to rotate. Since the outer wall of the bidirectional lead screw 102 is threadedly connected to the two slides 103, and the slides 103 are slidably connected to the slide rail 104, the two slides 103 will move closer to each other along the slide rail 104 under the action of the rotation of the bidirectional lead screw 102. As the slide table 103 moves, the main jaw 3, which is fixedly connected to the slide table 103, also moves towards the component. During the movement of the main jaw 3, the connector 4, which is fixedly connected to the outer wall of one side of the main jaw 3, moves synchronously. The connector 4 drives the sliding block 401 to slide along the first guide rail 402, and at the same time drives the horizontal plate 5 to move, so that the L-shaped rod 502 slides on the side wall of the guide groove 501. Under the force of the guide groove 501, the L-shaped rod 502 drives the slide block 504 to slide along the second guide rail 505, and then drives the straight plate 503 to move closer to the component until the L-shaped rod 502 slides to the guide groove 501 closest to the placement plate 201, at which point the rubber layer on the outer wall of the straight plate 503 contacts the side wall of the component. Through the pushing action of the straight plate 503, the position of the component is precisely corrected. As the slide table 103 continues to move, the L-shaped rod 502 continues to slide along the guide groove 501, causing the straight plate 503 to move away from the workpiece; Simultaneously, as the slide table 103 moves, the main jaw 3, the first-level jaw 301, the second-level jaw 302, and the third-level jaw 303 approach the workpiece. When they contact the workpiece, they will adaptively adjust according to the shape of the part until they are tightly attached to the surface of the part, thus achieving the initial positioning and clamping of the part and ensuring that the part will not be significantly displaced during the processing. Once the workpiece is positioned, the processing equipment can be started to process the parts accordingly.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture for machining aerospace parts, comprising a base plate (1), characterized in that, Also includes: Fixed rod (2) is fixedly connected to the two side walls of the base plate (1); The placement plate (201) is fixedly connected to the top side wall of the fixing rod (2); A drive assembly is provided on the top wall of the base plate (1). The moving end of the drive assembly is provided with a main jaw (3). The main jaw (3) is provided with a clamping head assembly near the side wall of the placement plate (201). The first guide rail (402) is fixedly connected to both sides of the base plate (1); The correction component is set on both sides of the base plate (1). The correction component includes a connector (4) fixedly connected to the outer wall of one side of the main jaw (3), a second drive component set on the top of the first guide rail (402), and a sliding component set on both sides of the base plate (1). The drive end of the second drive component is provided with a guide groove (501). The top of the moving end of the sliding component is provided with an L-shaped rod (502). The L-shaped rod (502) is slidably connected to the guide groove (501). A straight plate (503) is fixedly connected to the end of the L-shaped rod (502) near the placement plate (201).

2. The positioning fixture for machining aerospace parts according to claim 1, characterized in that, The drive assembly includes a motor (101) fixedly connected to the top wall of one side of the base plate (1), two slide rails (104) fixedly connected to the top wall of the base plate (1), and two baffles (105) fixedly connected to the top wall of the base plate (1). A bidirectional lead screw (102) is fixedly connected to the output end of the motor (101). The two ends of the bidirectional lead screw (102) are rotatably connected to the baffles (105). Two slides (103) are threadedly connected to the outer wall of the bidirectional lead screw (102). The slides (103) are slidably connected to the slide rails (104) and the slides (103) are fixedly connected to the main jaw (3).

3. The positioning fixture for machining aerospace parts according to claim 2, characterized in that, The clamping head assembly includes two primary jaws (301) rotatably connected inside the main jaw (3), a secondary jaw (302) rotatably connected inside the primary jaws (301), and two tertiary jaws (303) rotatably connected inside the secondary jaws (302).

4. A positioning fixture for machining aerospace parts according to claim 3, characterized in that, The second drive assembly includes a sliding block (401) slidably connected to the outer wall of the first guide rail (402) and a horizontal plate (5) fixedly connected to the end of the connector (4) near the placement plate (201). The sliding block (401) is fixedly connected to the connector (4).

5. A positioning fixture for machining aerospace parts according to claim 4, characterized in that, The sliding assembly includes a second guide rail (505) fixedly connected to the middle section of both sides of the base plate (1), and a slide block (504) fixedly connected to the top wall of the second guide rail (505). The slide block (504) is fixedly connected to the L-shaped rod (502).

6. A positioning fixture for machining aerospace parts according to claim 1, characterized in that, The outer wall of the straight plate (503) is provided with a rubber layer.

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