Micro-molding device for aluminum alloy skin of general aviation aircraft

Abstract

The utility model relates to the technical field of aluminum alloy sheet metal forming, in particular to a general aviation aircraft aluminum alloy skin micro-plastic device which comprises a bottom foundation base, a posture adjusting structure, a pressurizing device and a control system. The bottom foundation base is of a flat plate structure and fixed to the ground. The posture adjusting structure is mounted on the upper surface of the bottom foundation base; the pressurizing device is mounted on the posture adjusting structure and is used for precisely shaping the workpiece; the pressurizing device comprises a power part and a force application contact; the power component is fixed at the lower end of the posture adjusting structure; the force application contact is fixed to the output end of the power component, and the power component provides power to drive the force application contact to apply pressure. The pressure applying force, frequency and position are controlled through the posture adjusting structure and the pressurizing device, compared with a traditional manual beating method, the shaping precision of the sheet metal part can be guaranteed, the labor intensity of workers can be effectively relieved, and the working comfort level can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy sheet metal forming, in particular to an aluminum alloy skin micro-plastic device for general aviation aircraft. Background Art

[0002] In the field of aviation manufacturing, aluminum alloy sheet metal parts are widely used in key structural components such as aircraft skins due to their light weight and high strength. Although traditional sheet metal forming technology can produce shapes close to the design requirements, due to the limitations of material properties and processing equipment, the formed sheet metal parts often have certain shape deviations and dimensional tolerances. In order to meet the high precision requirements of aviation parts, it is usually necessary to fine-tune the sheet metal parts by manually tapping them with a rubber hammer. The rubber hammer is usually made of rubber and has a soft but firm hammer head. Its purpose is to adjust the shape of the metal parts by tapping or knocking without damaging the metal surface. Using a rubber hammer, you can make minor adjustments to the parts, such as fine-tuning the bending angle, eliminating protrusions or notches, and smoothing the surface, etc.; to achieve the shape and size required by the design.

[0003] In the prior art, manual hammering has problems such as high labor intensity, limited precision, low production efficiency and quality fluctuation.

[0004] In order to solve the above problems, the present application proposes a general aviation aircraft aluminum alloy skin micro-plastic device, which realizes the fine-tuning and shaping of sheet metal parts in a mechanized way, thereby improving the quality and production efficiency of the sheet metal forming process. Utility Model Content

[0005] The purpose of the utility model is to provide a general aviation aircraft aluminum alloy skin micro-plastic device, which can adjust and shape the aluminum alloy aircraft skin by controlling the pressure force, frequency and position of the pressurizing device, thereby improving the accuracy and production efficiency of sheet metal forming parts, thereby solving the technical problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a general aviation aircraft aluminum alloy skin micro-plastic device, including a bottom base, an attitude adjustment structure, a pressurizing device and a control system;

[0007] The bottom foundation base is a flat plate structure fixed on the ground;

[0008] The posture adjustment structure is installed on the upper surface of the bottom base and is used to adjust the posture of the pressurizing device;

[0009] The pressurizing device is installed on the posture adjustment structure; the pressurizing device includes a power component and a force-applying contact; the power component is fixed at the lower end of the posture adjustment structure; the force-applying contact is fixed at the output end of the power component, and the power component provides power and drives the force-applying contact to perform a pressurizing action;

[0010] The control system is electrically connected to the posture adjustment structure and the pressurizing device, and is used to control the movement of the posture adjustment structure and the pressurizing device.

[0011] Further, the posture adjustment structure includes a gantry bracket and an angle adjustment structure;

[0012] The gantry support comprises: a crossbeam, two vertical guide rails and two horizontal guide rails;

[0013] The two horizontal guide rails are fixed to the upper surface of the bottom base in parallel with each other along the length direction of the bottom base;

[0014] The two vertical guide rails are respectively vertically connected to the two horizontal guide rails;

[0015] The crossbeam is arranged between two vertical guide rails, and the two ends of the crossbeam are respectively connected to the two vertical guide rails; the lower surface of the crossbeam is connected to the angle adjustment structure; the lower end of the angle adjustment structure is connected to the pressure device; the crossbeam moves up and down along the vertical guide rails; thereby driving the pressure device to move up and down.

[0016] Furthermore, the angle adjustment structure includes a rotating base, a connecting arm and a rotating arm;

[0017] The top of the rotating base is connected to the lower part of the crossbeam; the upper end of the connecting arm is rotatably connected to the rotating base, and the lower end of the connecting arm is rotatably connected to the upper end of the rotating arm; the lower end of the rotating arm is connected to the pressurizing device;

[0018] A first servo motor and a first rotating shaft are arranged in the rotating base; the first servo motor and the first rotating shaft are arranged in a vertical direction, and gears are arranged on the output end of the first servo motor and the input end of the first rotating shaft, and power is transmitted between the two gears through a synchronous toothed belt; the output end of the first rotating shaft is connected to the upper end of the connecting arm; a second servo motor and a second rotating shaft are arranged on the connecting arm; the second servo motor and the second rotating shaft are arranged in a horizontal direction, and gears are arranged on the output end of the second servo motor and the input end of the second rotating shaft, and power is transmitted between the two gears through a synchronous toothed belt; the output end of the second rotating shaft is connected to the upper end of the rotating arm.

[0019] Furthermore, the power component is a cylinder, a hydraulic cylinder or an electric cylinder.

[0020] Furthermore, a pressure sensor is provided on the force-applying contact; the force-applying contact is made of rubber material and has a hammer-head shape or a flat plate shape.

[0021] Furthermore, a loading platform is arranged on the bottom base; the loading platform is a flat plate structure arranged in the middle position of the upper surface of the bottom base, and is used for placing the workpiece to be processed.

[0022] Beneficial Effects

[0023] Compared with the traditional manual hammering method, the utility model can shape the aviation aluminum alloy aircraft skin by accurately controlling the force, frequency and position of the pressure through the posture adjustment structure and the pressure-applying device; it can improve the precision and production efficiency of sheet metal forming parts, reduce the physical exertion of workers, and effectively reduce the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the microplastic device disclosed in the utility model;

[0026] Figure 2 It is a structural schematic diagram of the posture adjustment structure of the micro-plastic device disclosed in the utility model;

[0027] Figure 3 It is an exploded schematic diagram of the posture adjustment structure of the micro-plastic device disclosed by the utility model.

[0028] In the figure:

[0029] 1. Bottom base; 2. Posture adjustment structure; 21. Gantry bracket; 211. Crossbeam; 212. Vertical guide rail; 213. Horizontal guide rail; 22. Angle adjustment structure; 221. Rotating base; 222. Connecting arm; 223. Rotating arm; 224. First servo motor; 225. First rotating axis; 226. Second servo motor; 227. Second rotating axis; 3. Power component; 4. Force contact; 5. Loading table. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: Figure 1-3 As shown, a general aviation aircraft aluminum alloy skin micro-plastic device includes a bottom base 1, an attitude adjustment structure 2, a pressurizing device and a control system;

[0032] The bottom base 1 is a flat plate structure fixed on the ground, serving as the foundation of the entire device and providing stable support;

[0033] The posture adjustment structure 2 is installed on the upper surface of the bottom base 1, and is used to adjust the posture of the pressure device and ensure that the force-applying contact 4 can be aligned with a specific position of the workpiece;

[0034] The pressurizing device is installed on the posture adjustment structure 2, and is used to fine-tune and shape the surface of the workpiece; the pressurizing device includes a power component 3 and a force contact 4; the power component 3 is fixed at the lower end of the posture adjustment structure 2; the force contact 4 is fixed at the output end of the power component 3, and the power is provided by the power component 3. The force contact 4 directly contacts the workpiece, and the shape of the metal part is adjusted by knocking or statically pressing the force contact 4, and the surface of the workpiece is slightly adjusted, such as fine-tuning the bending angle, eliminating protrusions, and flattening the surface; so as to achieve the shape and size required by the design;

[0035] The control system is electrically connected to the posture adjustment structure 2 and the pressurizing device, and is used to control the movement and shaping process of the posture adjustment structure 2 and the pressurizing device; the control system controls the movement of the posture adjustment structure 2 and the pressurizing device, thereby realizing the mechanization of the shaping process.

[0036] Further, the posture adjustment structure 2 includes a gantry support 21 and an angle adjustment structure 22;

[0037] The gantry support 21 is used to carry the angle adjustment structure 22 and drive it to move;

[0038] The gantry bracket 21 includes: a crossbeam 211, two vertical guide rails 212 and two horizontal guide rails 213; wherein the two vertical guide rails 212 and the two horizontal guide rails 213 are both transmission structures of ball screws. It should be noted that the ball screw, as a common structure, includes a driving motor, a lead screw and a nut slider. The lead screw is driven by the driving motor to rotate so that the nut slider and the components fixed on the nut slider move along the setting direction of the lead screw. The transmission structure of the ball screw is a prior art, and its specific working principle and structure are not repeated in this application.

[0039] Two horizontal guide rails 213 are fixed to the upper surface of the bottom base 1 in parallel with each other along the length direction of the bottom base 1; two vertical guide rails 212 are respectively vertically connected to the two horizontal guide rails 213; the two vertical guide rails 212 are driven to move along the length direction of the bottom base 1 by the ball screw structure of the two horizontal guide rails 213;

[0040] The crossbeam 211 is arranged between the two vertical guide rails 212, and the two ends of the crossbeam 211 are respectively connected to the two vertical guide rails 212; the lower surface of the crossbeam 211 is connected to the angle adjustment structure 22; the lower end of the angle adjustment structure 22 is connected to the pressure device; the crossbeam moves up and down along the vertical guide rails 212; thereby driving the pressure device to move up and down; it should be noted that a ball screw structure can also be arranged on the crossbeam 211 and connected to the angle adjustment structure 22, driving the angle adjustment structure 22 to move along the setting direction of the crossbeam 211;

[0041] The angle adjustment structure 22 is used to adjust the working angle of the pressure device to ensure that the force-applying contact 4 on the pressure device can contact the workpiece at a correct angle;

[0042] Furthermore, the angle adjustment structure 22 includes a rotating base 221, a connecting arm 222 and a rotating arm 223; the angle adjustment structure 22 allows the pressurizing device to be fine-tuned in different directions to adapt to workpieces of different shapes;

[0043] The top of the rotating base 221 is connected to the lower part of the crossbeam 211; the upper end of the connecting arm 222 is rotatably connected to the rotating base 221, and the lower end of the connecting arm 222 is rotatably connected to the upper end of the rotating arm 223; the lower end of the rotating arm 223 is connected to the pressurizing device;

[0044] A first servo motor 224 and a first rotating shaft 225 are arranged in the rotating base 221; the first servo motor 224 and the first rotating shaft 225 are arranged in the vertical direction, and gears are arranged on the output end of the first servo motor 224 and the input end of the first rotating shaft 225, and power is transmitted between the two gears through a synchronous toothed belt; the output end of the first rotating shaft 225 is connected to the upper end of the connecting arm 222; the first servo motor 224 drives the first rotating shaft 225 to rotate, and the first rotating shaft 225 drives the connecting arm 222 to rotate; the connecting arm 222 can adjust the angle of the pressurizing device in the horizontal direction when rotating;

[0045] A second servo motor 226 and a second rotating shaft 227 are provided on the connecting arm 222; the second servo motor 226 and the second rotating shaft 227 are arranged in the horizontal direction, and gears are provided on the output end of the second servo motor 226 and the input end of the second rotating shaft 227, and power is transmitted between the two gears through a synchronous toothed belt; the output end of the second rotating shaft 227 is connected to the upper end of the rotating arm 223; the second servo motor 226 drives the second rotating shaft 227 to rotate, and the second rotating shaft 227 drives the rotating arm 223 to rotate; the rotation of the rotating arm 223 can adjust the angle of the pressurizing device in the vertical direction.

[0046] Furthermore, the power component 3 in this embodiment is a cylinder, a hydraulic cylinder or an electric cylinder; the power component 3 provides the necessary power to drive the force contact 4 to adjust and shape the workpiece; it should be noted that the power component 3 drives the force contact 4 to adjust the shape of the metal part by knocking or static pressure, and make slight adjustments to the surface of the workpiece.

[0047] Furthermore, a pressure sensor is provided on the force-applying contact 4 for measuring the pressure exerted on the force-applying contact 4 ; the force-applying contact 4 is made of rubber material, and its shape is a hammer head or a flat plate, so as to meet the shaping requirements of different workpieces.

[0048] Furthermore, a loading platform 5 is provided on the bottom base 1; the loading platform 5 is provided at the middle position of the upper surface of the bottom base 1 for placing the workpiece to be processed, and a fixture for clamping the workpiece is provided on the loading platform 5.

[0049] Further, the control system includes: a coordinate input module, a motion control module and a force control module;

[0050] The coordinate input module is used to receive the workpiece coordinate data; the motion control module drives the posture adjustment structure 2 and the pressure device to move according to the input coordinate data; the force control module controls the force applied by the force contact 4 on the workpiece; the control system receives the workpiece coordinate data and drives the movement of the posture adjustment structure 2 and the pressure device according to these data. At the same time, the force control module ensures that the force applied by the force contact 4 on the workpiece meets the preset parameters; it should be noted that the workpiece coordinate data requires an external coordinate scanner to obtain; the coordinate scanner is a prior art and its working principle is not repeated in this application.

[0051] The working principle and process are as follows:

[0052] First, the workpiece is fixed on the stage 5 to ensure that it is stable during the entire processing process;

[0053] Then, an external coordinate scanner is used to input the measured workpiece coordinate data into the control system. The control system adjusts the position of the posture adjustment structure 2 and the pressure device according to the input data, and applies pressure to the workpiece at the position to be processed to accurately shape the workpiece.

[0054] After the pressure is applied, check whether the shape of the workpiece meets the requirements. If necessary, adjust it again. After confirming that the shape of the workpiece is correct, remove the fixture and take off the workpiece.

[0055] During use, the workpiece should be pressed repeatedly to ensure that the rebound amplitude is within a controllable range. The pressing process should be done in intervals, with an interval of 10 to 20 seconds between each press to avoid the impact of material rebound on the pressure.

[0056] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A general aviation aircraft aluminum alloy skin micro-plastic device, characterized in that: It comprises a bottom base (1), a posture adjustment structure (2), a pressurizing device and a control system; The bottom foundation base (1) is a flat plate structure fixed on the ground; The posture adjustment structure (2) is installed on the upper surface of the bottom base (1) and is used to adjust the posture of the pressurizing device; The pressurizing device is mounted on the posture adjustment structure (2); the pressurizing device comprises a power component (3) and a force-applying contact (4); the power component (3) is fixed to the lower end of the posture adjustment structure (2); the force-applying contact (4) is fixed to the output end of the power component (3), and the power component (3) provides power and drives the force-applying contact (4) to perform a pressurizing action; The control system is electrically connected to the posture adjustment structure (2) and the pressurizing device, and is used to control the movement of the posture adjustment structure (2) and the pressurizing device.

2. The general aviation aircraft aluminum alloy skin micro-plastic device according to claim 1 is characterized in that: The posture adjustment structure (2) comprises a gantry support (21) and an angle adjustment structure (22); The gantry support (21) comprises: a crossbeam (211), two vertical guide rails (212) and two horizontal guide rails (213); The two horizontal guide rails (213) are fixed on the upper surface of the bottom base (1) in parallel with each other along the length direction of the bottom base (1); The two vertical guide rails (212) are respectively vertically connected to the two horizontal guide rails (213); The cross beam (211) is arranged between two vertical guide rails (212); the two ends of the cross beam (211) are respectively connected to the two vertical guide rails (212); the lower surface of the cross beam (211) is connected to the angle adjustment structure (22); the lower end of the angle adjustment structure (22) is connected to the pressure device; the cross beam (211) moves up and down along the vertical guide rails (212); thereby driving the pressure device to move up and down.

3. The general aviation aircraft aluminum alloy skin micro-plastic device according to claim 2 is characterized in that: The angle adjustment structure (22) comprises a rotating base (221), a connecting arm (222) and a rotating arm (223); The top of the rotating base (221) is connected to the bottom of the crossbeam (211); the upper end of the connecting arm (222) is rotatably connected to the rotating base (221), and the lower end of the connecting arm (222) is rotatably connected to the upper end of the rotating arm (223); the lower end of the rotating arm (223) is connected to the pressurizing device; A first servo motor (224) and a first rotating shaft (225) are arranged in the rotating base (221); the first servo motor (224) and the first rotating shaft (225) are arranged in a vertical direction, and gears are arranged on the output end of the first servo motor (224) and the input end of the first rotating shaft (225), and power is transmitted between the two gears through a synchronous toothed belt; the output end of the first rotating shaft (225) is connected to the upper end of the connecting arm (222); a second servo motor (226) and a second rotating shaft (227) are arranged on the connecting arm (222); the second servo motor (226) and the second rotating shaft (227) are arranged in a horizontal direction, and gears are arranged on the output end of the second servo motor (226) and the input end of the second rotating shaft (227), and power is transmitted between the two gears through a synchronous toothed belt; the output end of the second rotating shaft (227) is connected to the upper end of the rotating arm (223).

4. The general aviation aircraft aluminum alloy skin micro-plastic device according to claim 1, characterized in that: The power component (3) is a cylinder, a hydraulic cylinder or an electric cylinder.

5. The general aviation aircraft aluminum alloy skin micro-plastic device according to claim 1, characterized in that: The force-applying contact (4) is provided with a pressure sensor; the force-applying contact (4) is made of rubber material and has a hammer-head shape or a flat plate shape.

6. The general aviation aircraft aluminum alloy skin micro-plastic device according to claim 1, characterized in that: A loading platform (5) is arranged on the bottom basic base (1); the loading platform (5) is a flat plate structure arranged at the middle position of the upper surface of the bottom basic base (1) and is used for placing a workpiece to be processed.

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