A hole-making robot for composite part machining

Abstract

The utility model discloses a kind of hole-making robot for composite parts processing, it is related to drilling device technical field, the utility model includes mechanical arm, drilling assembly, drilling assembly includes electric spindle, substrate, connecting plate, scrap blowing nozzle, air pipe, air pump, sleeve, telescopic link, guide rail, sliding block, connecting seat, electric sliding rail and drill bit.Working, mechanical arm adjusts drilling assembly position to make drill bit align the hole position to be processed, electric spindle drives drill bit rotation, electric sliding rail is driven along guide rail and sliding block feed by connecting seat electric spindle, connecting plate drives scrap blowing nozzle synchronous movement with electric spindle, air pump is transported high-pressure gas to scrap blowing nozzle by spring type air pipe and removes chip, sleeve and telescopic link auxiliary constraint electric spindle movement.This robot solves the problem that independent scrap blowing mechanism of existing device is difficult to follow drilling area, prone to interference, improves composite chip cleaning efficiency and drilling precision, guarantees equipment life, adapts to the demand of composite hole-making in multiple scenes.

Description

Technical Field

[0001] This utility model belongs to the field of drilling device technology, and in particular relates to a hole-making robot for processing composite parts. Background Technology

[0002] With the increasing demands for lightweight, high-strength, and corrosion-resistant components in aerospace, new energy, and high-end equipment manufacturing industries, the application of advanced composite materials such as carbon fiber composites, glass fiber composites, and ceramic matrix composites is becoming increasingly widespread. These composite materials have outstanding advantages such as high specific strength, high specific modulus, and excellent fatigue resistance, which can effectively reduce component weight and improve the overall performance of equipment.

[0003] Existing drilling devices for composite materials often employ a split design: a drilling mechanism and an independent chip blowing mechanism. The chip blowing mechanism is typically fixed to the side of the equipment frame or robotic arm via a bracket, operating as an independent unit from the drilling mechanism. This results in a fixed installation position or limited range of motion for the chip blowing mechanism. When the drilling mechanism needs to process holes at different positions and angles on the part, the chip blowing mechanism struggles to accurately follow the drilling area, leading to the inability to promptly remove debris from some holes and potential positional interference with the drilling mechanism or the workpiece. Utility Model Content

[0004] The purpose of this utility model is to provide a hole-making robot for processing composite parts, which solves the problem that the existing drilling device adopts a split design of "drilling mechanism + independent chip blowing mechanism", which makes it difficult for the chip blowing mechanism to accurately follow the drilling area and easily interfere with the drilling mechanism or workpiece.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a hole-making robot for processing composite parts, comprising a robotic arm, a drilling assembly mounted at the end of the robotic arm, the drilling assembly comprising an electric spindle and a base plate fixed at the end of the robotic arm, a connecting plate fixedly mounted at one end of the electric spindle, a chip blowing nozzle fixedly mounted on the side of the connecting plate away from the electric spindle, an air pipe fixedly connected to the periphery of the chip blowing nozzle, an air pump fixedly connected to the end of the air pipe away from the chip blowing nozzle, and the air pump fixedly mounted on one side of the base plate.

[0007] The present invention is further configured such that the bottom end of the blowing nozzle has a conical structure and the air tube adopts a spring-type structure.

[0008] The present invention is further configured such that sleeves are fixedly installed on both opposite sides of the substrate, and telescopic rods are slidably fitted inside the sleeves, with one end of each telescopic rod being fixedly connected to the connecting plate.

[0009] The present invention is further configured such that two symmetrical guide rails are fixedly installed on adjacent inner sides of the substrate, sliders are slidably installed on the guide rails, and connecting seats are fixedly installed on both sliders, and the connecting seats are fixedly sleeved on the peripheral side of the electric spindle.

[0010] The present invention is further configured such that an electric slide rail is fixedly installed on the other inner side adjacent to the substrate, and the moving end of the electric slide rail is fixedly connected to the connecting seat.

[0011] The present invention is further configured such that a drill bit with a through-hole chip blowing nozzle is fixedly installed at the output end of the electric spindle.

[0012] This utility model has the following beneficial effects:

[0013] This invention integrates the chip blowing mechanism and the drilling mechanism by fixing the chip blowing nozzle to the electric spindle via a connecting plate and fixing the air pump to the base plate. This allows the chip blowing nozzle to move synchronously with the electric spindle, accurately following drilling areas at different positions and angles. This effectively avoids the problem of untimely chip removal caused by the independent chip blowing mechanism being unable to adapt to the drilling position, thus improving the targeting and efficiency of composite chip removal.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 A first-view structural schematic diagram of the drilling assembly;

[0018] Figure 3 This is a structural schematic diagram of the drilling assembly from a second perspective.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Robotic arm; 2. Electric spindle; 3. Base plate; 4. Connecting plate; 5. Chip blower; 6. Air pipe; 7. Air pump; 8. Sleeve; 9. Telescopic rod; 10. Guide rail; 11. Slider; 12. Connecting seat; 13. Electric slide rail; 14. Drill bit. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0023] Please see Figure 1-3 This utility model is a hole-making robot for processing composite parts, including a robotic arm 1. A drilling assembly is installed at the end of the robotic arm 1. The drilling assembly includes an electric spindle 2 and a base plate 3 fixed at the end of the robotic arm 1. A connecting plate 4 is fixedly installed at one end of the electric spindle 2. A chip blowing nozzle 5 is fixedly installed on the side of the connecting plate 4 away from the electric spindle 2. An air pipe 6 is fixedly connected to the periphery of the chip blowing nozzle 5. An air pump 7 is fixedly connected to the end of the air pipe 6 away from the chip blowing nozzle 5. The air pump 7 is fixedly installed on one side of the base plate 3.

[0024] The system utilizes a robotic arm 1 to adjust the spatial position of the drilling assembly, leveraging its multi-degree-of-freedom motion characteristics to move the end-effector to the desired hole position on the composite part, ensuring precise alignment for subsequent drilling operations. The electric spindle 2 provides the power required for the rotation of the drill bit 14, with its output directly connected to the drill bit 14, driving it to rotate at high speed to cut and drill holes in the composite part. A connecting plate 4 secures the electric spindle 2 to the chip blowing nozzle 5, allowing the nozzle to move synchronously with the spindle 2, preventing misalignment and reduced chip blowing efficiency. The nozzle 5 directionally delivers high-pressure gas to the processing area, aligning it with the contact point between the drill bit 14 and the composite material during drilling, blowing away composite debris generated during cutting from the hole wall and the electric spindle 2, preventing debris accumulation and affecting processing quality. An air pipe 6 establishes a gas delivery channel between the air pump 7 and the nozzle 5, stably delivering the high-pressure gas generated by the air pump 7 to the nozzle 5.

[0025] Specifically, the bottom of the chip blowing nozzle 5 has a conical structure, and the air pipe 6 adopts a spring-type structure. The conical design of the bottom of the chip blowing nozzle 5 allows the high-pressure gas to be more concentrated during injection, enhancing the airflow's ability to directionally blow away composite material debris and preventing gas diffusion that could cause some debris to remain on the hole wall or machined surface. The spring-type structure of the air pipe 6 utilizes the extension and contraction characteristics of the spring, allowing the air pipe 6 to extend and contract synchronously as the chip blowing nozzle 5 moves up and down with the electric spindle 2. This not only does not restrict the movement range of the chip blowing nozzle 5, but also prevents the air pipe 6 from breaking or becoming blocked due to stretching, ensuring the continuity of gas delivery and thus ensuring stable cleaning of composite material debris.

[0026] Sleeves 8 are fixedly installed on both sides of the substrate 3. Telescopic rods 9 are slidably fitted inside the sleeves 8. One end of the two telescopic rods 9 is fixedly connected to the connecting plate 4. Through the sliding fit between the sleeves 8 and the telescopic rods 9, the movement direction of the electric spindle 2 can be assisted and constrained to ensure that the electric spindle 2 moves only along the set axial direction, avoids radial deviation of the electric spindle 2 during processing, thereby reducing the vibration of the drill bit 14 end and ensuring the straightness and stability of the drilling.

[0027] Two symmetrical guide rails 10 are fixedly installed on adjacent inner sides of the base plate 3. Slider 11 is slidably installed on the guide rails 10. Connecting seats 12 are fixedly installed on the two sliders 11. The connecting seats 12 are fixedly sleeved on the peripheral side of the electric spindle 2. Through the cooperation of the two symmetrically installed guide rails 10 and sliders 11, a stable guide track can be provided for the movement of the electric spindle 2, ensuring that the electric spindle 2 moves smoothly along the axial direction and reducing vibration caused by unstable guidance. The connecting seats 12 are fixedly sleeved on the peripheral side of the electric spindle 2, which can transmit the guiding effect of the guide rails 10 and sliders 11 to the electric spindle 2. At the same time, in cooperation with the sleeve 8 and the telescopic rod 9, they jointly restrict the movement direction of the electric spindle 2, avoid circumferential rotation or radial offset of the electric spindle 2, ensure the stability of the cutting direction of the drill bit 14, and reduce the impact of vibration on the drilling quality.

[0028] An electric slide rail 13 is fixedly installed on the other inner side of the substrate 3. The moving end of the electric slide rail 13 is fixedly connected to the connecting seat 12. The electric slide rail 13 provides the power for the electric spindle 2 to move up and down. Its motor drives the moving end to move along the track, and the moving end drives the connecting seat 12 to move synchronously, thereby driving the electric spindle 2 and the drill bit 14 to achieve up and down feeding. The electric slide rail 13 can precisely control the moving speed and displacement, and can adjust the drilling depth according to the thickness of the composite parts, avoiding excessive or sticky debris due to excessive or slow feed speed, and ensuring that the debris can be effectively cleaned.

[0029] A drill bit 14 with a through-hole chip blower 5 is fixedly installed at the output end of the electric spindle 2. The drill bit 14 rotates at high speed under the drive of the electric spindle 2 and uses its own cutting edge to cut the composite material parts to achieve the function of making holes. Composite material chips are generated during the cutting process. The installation method of the through-hole chip blower 5 can ensure that the chip blower 5 is always aligned with the cutting area of ​​the drill bit 14, ensuring that the high-pressure gas can blow away the composite material chips generated by the cutting of the drill bit 14 in time, avoiding the chips from adhering to the hole wall and affecting the surface roughness, or entering the electric spindle 2 and causing wear on bearings, motors and other components, thus extending the service life of the equipment.

[0030] The operation process of this embodiment is as follows: First, the spatial position of the drilling assembly is adjusted by the robotic arm 1 so that the drill bit 14 is aligned with the hole to be processed on the composite part. The air pump 7 is started, and the high-pressure gas generated by the air pump 7 is delivered to the chip blowing nozzle 5, which has a conical bottom end, through the spring-type air pipe 6 to form a directional airflow, which is ready for subsequent removal of composite debris. The electric spindle 2 is started, and the electric spindle 2 drives the drill bit 14, which passes through the chip blowing nozzle 5, to rotate at high speed. The moving end of the electric slide rail 13 is controlled to move downward, and the moving end drives the connecting seat 12 along the guide rail 10 and the slider 1. 1. Slide downwards, connecting seat 12 drives electric spindle 2 to move downwards synchronously, drill bit 14 moves downwards with electric spindle 2 to contact composite material parts and perform cutting and drilling; at the same time, chip blowing nozzle 5 moves downwards synchronously with connecting plate 4, always aligned with the cutting area of ​​drill bit 14, and blows away composite material chips with high-pressure gas to avoid chip accumulation or adhesion; after drilling is completed, control the moving end of electric slide rail 13 to move upwards, driving connecting seat 12, electric spindle 2, drill bit 14, connecting plate 4 and telescopic rod 9 to reset synchronously, turn off electric spindle 2 and air pump 7, and complete one hole making operation.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hole-making robot for processing composite parts, comprising a robotic arm (1), characterized in that: The end of the robotic arm (1) is equipped with a drilling assembly, which includes an electric spindle (2) and a base plate (3) fixed at the end of the robotic arm (1). A connecting plate (4) is fixedly installed at one end of the electric spindle (2). A chip blowing nozzle (5) is fixedly installed on the side of the connecting plate (4) away from the electric spindle (2). An air pipe (6) is fixedly connected to the periphery of the chip blowing nozzle (5). An air pump (7) is fixedly connected to the end of the air pipe (6) away from the chip blowing nozzle (5). The air pump (7) is fixedly installed on one side of the base plate (3).

2. The drilling robot for processing composite parts according to claim 1, characterized in that, The bottom end of the blow nozzle (5) is tapered, and the air tube (6) adopts a spring-type structure.

3. The drilling robot for processing composite parts according to claim 2, characterized in that, Sleeves (8) are fixedly installed on both sides of the substrate (3). Telescopic rods (9) are slidably fitted inside the sleeves (8). One end of the two telescopic rods (9) is fixedly connected to the connecting plate (4).

4. The drilling robot for processing composite parts according to claim 3, characterized in that, Two symmetrical guide rails (10) are fixedly installed on an adjacent inner side of the substrate (3). A slider (11) is slidably installed on the guide rail (10). A connecting seat (12) is fixedly installed on both sliders (11). The connecting seat (12) is fixedly sleeved on the periphery of the electric spindle (2).

5. A hole-making robot for processing composite parts according to claim 4, characterized in that, An electric slide rail (13) is fixedly installed on the other inner side of the substrate (3), and the moving end of the electric slide rail (13) is fixedly connected to the connecting seat (12).

6. A hole-making robot for processing composite parts according to claim 5, characterized in that, The output end of the electric spindle (2) is fixedly equipped with a drill bit (14) that passes through the chip blower (5).

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