Aerospace part drilling device

Abstract

A spaceflight part drilling device comprises a supporting frame and a drilling mechanism arranged on the supporting frame, the supporting frame comprises a supporting rod, a workbench and a top plate, the drilling mechanism is arranged at the bottom of the top plate in a liftable mode through a feeding mechanism, and the drilling mechanism comprises a motor, a drill bit and a bearing. The drill bit is fixedly connected with the output end of the motor through a clamping block, the drill bit is sleeved with a lengthened bearing, the outer surface of the drill bit is slidably connected with an inner ring of the bearing, the bearing is sleeved with a sleeve, the top of the sleeve is connected with the clamping block through a plurality of springs, and a fixing mechanism is arranged on the workbench. The fixing mechanism comprises four sets of fixing assemblies, four infrared distance meters are arranged on the outer surface of the sleeve through a mounting base, and the four infrared distance meters and the four sets of fixing assemblies are arranged in a one-to-one correspondence mode. The four-direction pressing and fixing device is used for pressing and fixing the parts in four directions, is suitable for the parts of various specifications, and meanwhile improves the drilling precision.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace drilling, in particular to an aerospace component drilling device. Background Art

[0002] In the aerospace industry, precision machining of components is a key step in ensuring the safe and efficient operation of aircraft. Drilling, as a crucial step in component processing, is widely used in the production and processing of aerospace components. Currently, drilling is primarily done manually with handheld drilling equipment or by drilling with a drill. However, manual drilling is inefficient and cannot guarantee accuracy. Conventional drilling machines are not suitable for machining non-standard, irregularly shaped aerospace components. Therefore, it is necessary to design a drilling device with high efficiency and precision specifically for aerospace components.

[0003] Chinese patent document CN220407185U discloses an automatic drilling device for aerospace equipment, comprising a workbench and an adjustment assembly. One side of the workbench is provided with a positioning mechanism for clamping and fixing a workpiece, and an adjacent side is provided with a sliding mechanism for the drilling assembly. The electric push rod is activated to push the connecting plate, causing the connected sliding block to slide on a rectangular rod, which in turn causes one rack to slide on a gear, which in turn causes the gear to rotate. The rotation of the gear causes the other rack to slide on the gear, which in turn causes another sliding block to slide on the rectangular rod, causing the two sliding blocks to slide toward each other on the rectangular rod. The clamping plate and protective pads then move toward each other, clamping and positioning both sides of the workpiece. Protective pads are provided on the clamping plate to prevent wear on both sides of the workpiece during clamping. This utility model provides a higher-precision drilling device for aerospace components. Utility Model Content

[0004] The utility model aims to provide an aerospace component drilling device, which can press and fix the four positions of the component, is suitable for components of various specifications, and also improves the drilling accuracy.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A drilling device for aerospace parts comprises a support frame and a drilling mechanism arranged on the support frame, the support frame comprises a support rod, a workbench and a top plate, the workbench is fixedly arranged on the support rod, the top plate is fixedly arranged on the top of the support rod, the drilling mechanism can be raised and lowered by a feed mechanism and is arranged at the bottom of the top plate, the drilling mechanism comprises a motor, a drill bit and a bearing, the drill bit is fixedly connected to the output end of the motor through a clamping block, the drill bit is provided with an extended bearing on the outside, the outer surface of the drill bit is slidably connected to the inner ring of the bearing, the outer side of the bearing is provided with a sleeve, the top of the sleeve is connected to the clamping block through a number of springs, and a fixing mechanism is provided on the workbench, the fixing mechanism comprises four groups of fixing components, the four groups of fixing components are fixedly arranged on the four sides of the workbench, the outer surface of the sleeve is provided with four infrared rangefinders through a mounting seat, and the four infrared rangefinders are provided in a one-to-one correspondence with the four groups of fixing components.

[0007] As a preferred technical solution, the workbench is a grid-like structure, a dust box is fixedly provided at the bottom of the workbench, and the dust box is externally connected to a dust collection device.

[0008] As an optimal technical solution, the feeding mechanism includes a cylinder and a lifting plate, the top of the cylinder is fixedly connected to the bottom of the top plate, the telescopic end of the cylinder is fixedly connected to the top of the lifting plate, and the drilling mechanism is fixedly arranged at the bottom of the lifting plate.

[0009] As an optimal technical solution, a rubber ring is provided at the bottom of the bearing, and the bottom of the rubber ring is lower than the bottom of the drill bit.

[0010] As a preferred technical solution, each group of fixed components includes an electric telescopic rod and a splint, and the splint includes a vertical plate, a first fixed plate and a second fixed plate. The electric telescopic rod is fixedly set on the side of the workbench, and the telescopic end of the electric telescopic rod faces the center of the workbench. The vertical plate is fixedly connected to the telescopic end of the electric telescopic rod, the first fixed plate is fixedly set on the upper right side of the vertical plate, and the second fixed plate is fixedly set on the lower left side of the vertical plate.

[0011] As a preferred technical solution, the first fixing plate and the second fixing plate have the same shape and size, and the height of the first fixing plate and the second fixing plate are both half the height of the vertical plate.

[0012] As a preferred technical solution, a rubber layer is attached to the side of the splint facing the center of the workbench.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, a bearing is provided on the outside of the drill bit. The rubber ring at the bottom of the sleeve connected to the bearing can press the components, thereby strengthening the fixation of the components. The bearing can also limit the drill bit longitudinally to prevent the drill bit from slipping when drilling, which affects the hole formation and hole position accuracy.

[0015] 2. In the present invention, the fixing device compresses and fixes the component from four directions: front, back, left, and right, thus avoiding damage to the component caused by clamping and pressing, and can adapt to components of various sizes and specifications.

[0016] 3. In the present invention, an infrared rangefinder is provided on the drilling device, which measures the distance between the drill bit and the four clamping plates respectively, adjusts the relative positions of the components and the drill bit, and improves the drilling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0018] Figure 1 For this utility model;

[0019] Figure 2 For this utility model;

[0020] Figure 3 For this utility model;

[0021] The reference numerals are as follows:

[0022] 1-support rod, 2-workbench, 3-top plate, 4-cylinder, 5-lifting plate, 6-motor, 7-drill bit, 8-spring, 9-bearing, 10-electric telescopic rod, 11-vertical plate, 12-first fixed plate, 13-second fixed plate, 14-dust box, 15-infrared rangefinder. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but rather merely represents selected embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without making any creative effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, it is only for the convenience of describing this application and simplifying the description, and does 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 this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, 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 a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] Example

[0027] like Figure 1-3 As shown, a drilling device for aerospace components includes a support frame and a drilling mechanism mounted on the support frame. The support frame includes a support rod 1, a workbench 2, and a top plate 3. The workbench 2 is fixedly mounted on the support rod 1, and the top plate 3 is fixedly mounted on the top of the support rod 1. The drilling mechanism is located at the bottom of the top plate 3 and can be raised and lowered by a feed mechanism. The drilling mechanism includes a motor 6, a drill bit 7, and a bearing 9. The drill bit 7 is fixedly connected to the output end of the motor 6 via a clamping block. An extended bearing 9 is provided on the outer surface of the drill bit 7, and the outer surface of the drill bit 7 is slidably connected to the inner ring of the bearing 9. A sleeve is provided on the outer side of the bearing 9, and the top of the sleeve is connected to the clamping block via several springs 8. The workbench 2 is provided with a fixing mechanism. The fixing mechanism includes four sets of fixing components fixed to the four sides of the workbench 2. A mounting seat is also provided on the sleeve. The mounting seat is equipped with four infrared rangefinders 15, which are arranged one-to-one with the four sets of fixing components. The bottom of the sleeve protrudes beyond the bearing.

[0028] It is worth noting that the drilling operation is performed on aerospace parts by the provided drilling mechanism, the speed and depth of the axial movement of the drilling mechanism is controlled by the provided feeding mechanism to achieve the feeding movement, the parts are fixed by the provided fixing mechanism, and the fixing mechanism can also adjust the position of the parts on the workbench 2 so that different positions of the parts can be drilled. The distance between the drilling mechanism and the four groups of fixing components is measured by the provided infrared rangefinder 15 to accurately locate the position where the holes need to be drilled. Specifically, the drilling operation is performed by the provided drill bit 7, and the motor 6 drives the drill bit 7 to rotate to drill. The longitudinal movement of the drill bit 7 is limited by the provided bearing 9. During drilling, after the bottom of the sleeve contacts the part, the drill bit 7 continues to descend to drill. At this time, the spring 8 is compressed and the bearing 9 no longer moves downward. The drill bit 7 moves downward relative to the bearing 9. The bearing 9 is tightly attached to the upper surface of the part under the action of the spring 8. The drill bit 7 moves downward within the bearing 9, which limits the drill bit 7 and prevents the drill bit 7 from slipping during drilling and affecting the hole position accuracy.

[0029] In particular, the length of the drill bit 7 must ensure that the motor 6 does not interfere with the fixing mechanism when the drilling mechanism descends to drill.

[0030] In some feasible embodiments, the workbench 2 has a grid structure, and a dust box 14 is fixedly provided at the bottom of the workbench 2. The dust box 14 is connected to an external dust collection device. The external dust collection device generates suction, which can suck the debris generated by drilling into the dust box 14 for collection.

[0031] The suction is generated because the gas flows from the high-pressure area to the low-pressure area, so the dust collection equipment draws air out of the dust box 14 to form a low-pressure area, so that the debris is sucked into the dust box 14. At the same time, the air in the dust box 14 can also take away some heat during the flow to the dust collection equipment, which helps to reduce the temperature of the parts caused by drilling.

[0032] In some feasible embodiments, the feeding mechanism includes a cylinder 4 and a lifting plate 5. The top of the cylinder 4 is fixedly connected to the bottom of the top plate 3, the telescopic end of the cylinder 4 is fixedly connected to the top of the lifting plate 5, and the drilling mechanism is fixedly disposed on the bottom of the lifting plate 5. The cylinder 4 drives the lifting plate 5 to move up and down, thereby driving the drilling mechanism to move up and down to perform the drilling operation.

[0033] In some feasible embodiments, a rubber ring is provided at the bottom of the sleeve, and the bottom of the rubber ring is lower than the bottom of the drill bit 7, so that when the drill bit 7 descends to drill a hole, the rubber ring at the bottom of the sleeve first contacts the surface of the component and is pressed, thereby facilitating the limiting of the drill bit 7.

[0034] In some feasible embodiments, each set of fixing components includes an electric telescopic rod 10 and a splint, the splint includes a vertical plate 11, a first fixed plate 12 and a second fixed plate 13, the electric telescopic rod 10 is fixedly set on the side of the workbench 2, the telescopic end of the electric telescopic rod 10 faces the center of the workbench 2, the vertical plate 11 is fixedly connected to the telescopic end of the electric telescopic rod 10, the first fixed plate 12 is fixedly set on the upper right side of the vertical plate 11, and the second fixed plate 13 is fixedly set on the lower left side of the vertical plate 11. The first fixed plate 12 and the second fixed plate 13 have the same shape and size, and the height of the first fixed plate 12 and the second fixed plate 13 are both half the height of the vertical plate 11.

[0035] Specifically, the four vertical plates 11 are named a vertical plate 11, b vertical plate 11, c vertical plate 11 and d vertical plate 11, which are respectively located at the back, right, front and left sides of the workbench 2, the first fixed plate 12 on the a vertical plate 11 is adjacent to the second fixed plate 13 on the b vertical plate 11, the first fixed plate 12 on the b vertical plate 11 is adjacent to the second fixed plate 13 on the c vertical plate 11, the first fixed plate 12 on the c vertical plate 11 is adjacent to the second fixed plate 13 on the d vertical plate 11, the first fixed plate 12 on the d vertical plate 11 is adjacent to the second fixed plate 13 on the a vertical plate 11, and each second fixed plate 13 can pass under the first fixed plate 12 on the adjacent vertical plate 11, so that the splints of the four groups of fixing assemblies can slide in an staggered manner, and the fixed range of the minimum size area that can be adjusted by the four splints is a square of the width of the vertical plate 11.

[0036] The electric telescopic rod 10 drives the vertical plate 11 to extend and retract, adjusting the clamping plate to facilitate the fixing of components of different sizes. Each electric telescopic rod 10 can also be adjusted individually, allowing the relative position of the component and the drill bit 7 to be adjusted according to the data from the infrared rangefinder 15, accurately positioning the hole. Based on the shape and specifications of the component and the detection data from the infrared rangefinder, the controller controls the extension and retraction of the electric telescopic rod 10, thereby controlling the clamping plate to push the component in four directions, ensuring that the component hole position aligns with the drill bit position.

[0037] In some feasible embodiments, a rubber layer is attached to the side of the splint facing the center of the workbench 2 to enhance the friction between the splint and the component and prevent the component from moving during the drilling process.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of 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 implementation methods that can be understood by those skilled in the art. So far, the various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. The scope of the present disclosure is defined by the appended claims.

Claims

1. A drilling device for aerospace components, comprising a support frame and a drilling mechanism arranged on the support frame, characterized in that: The support frame comprises a support rod (1), a workbench (2) and a top plate (3); the workbench (2) is fixedly arranged on the support rod (1); the top plate (3) is fixedly arranged on the top of the support rod (1); the drilling mechanism is arranged at the bottom of the top plate (3) and can be raised and lowered by a feeding mechanism; the drilling mechanism comprises a motor (6), a drill bit (7) and a bearing (9); the drill bit (7) is fixedly connected to the output end of the motor (6) through a clamping block; and an extended bearing (9) is provided on the outside of the drill bit (7). The outer surface of the drill bit (7) is slidably connected to the inner ring of the bearing (9); the outer sleeve of the bearing (9) is provided with a sleeve, the top of the sleeve is connected to the clamping block through a plurality of springs (8); a fixing mechanism is provided on the workbench (2), the fixing mechanism includes four groups of fixing components, the four groups of fixing components are fixedly arranged on the four sides of the workbench (2); the outer surface of the sleeve is provided with four infrared rangefinders (15) through a mounting seat, and the four infrared rangefinders (15) are arranged in a one-to-one correspondence with the four groups of fixing components; Each set of fixing components includes an electric telescopic rod (10) and a clamping plate, and the clamping plate includes a vertical plate (11), a first fixed plate (12) and a second fixed plate (13). The electric telescopic rod (10) is fixedly arranged on the side of the workbench (2), and the telescopic end of the electric telescopic rod (10) faces the center of the workbench (2). The vertical plate (11) is fixedly connected to the telescopic end of the electric telescopic rod (10). The first fixed plate (12) is fixedly arranged on the upper right side of the vertical plate (11), and the second fixed plate (13) is fixedly arranged on the lower left side of the vertical plate (11). The first fixing plate (12) and the second fixing plate (13) have the same shape and size, and the height of the first fixing plate (12) and the second fixing plate (13) are both half the height of the vertical plate (11).

2. The aerospace component drilling device according to claim 1, characterized in that: The workbench (2) is a grid-like structure, and a dust collecting box (14) is fixedly provided at the bottom of the workbench (2), and the dust collecting box (14) is externally connected to a dust collecting device.

3. The aerospace component drilling device according to claim 1, characterized in that: The feeding mechanism comprises a cylinder (4) and a lifting plate (5), the top of the cylinder (4) is fixedly connected to the bottom of the top plate (3), the telescopic end of the cylinder (4) is fixedly connected to the top of the lifting plate (5), and the drilling mechanism is fixedly arranged at the bottom of the lifting plate (5).

4. The aerospace component drilling device according to claim 1, characterized in that: A rubber ring is provided at the bottom of the sleeve, and the bottom of the rubber ring is lower than the bottom of the drill bit (7).

5. The aerospace component drilling device according to claim 1, characterized in that: A rubber layer is attached to the side of the splint facing the center of the workbench (2).

Images