Numerical control cutting device and method for aviation parts

Abstract

The present application relates to the technical field of part cutting, in particular to a numerical control cutting device and method for aviation parts, comprising a cutting adjusting platform and a numerical control cutting assembly; the numerical control cutting assembly comprises two clamping rotating mechanisms, a cutting arm, an internal lifting unit, a lifting sliding block, a cutting tool and a rotating storage unit, the cutting tool is started to process a special-shaped groove, after the use of the cutting tool is completed, the internal lifting unit is started to move the lifting sliding block above the cutting arm; the rotating storage unit disassembles and replaces the cutting tool; after replacement, the new cutting tool slides down from the inner top of the cutting arm and is located inside the aviation part again, and different tools are repeatedly operated until the special-shaped groove processing is completed; thus, after the cutting arm is moved to a processing position, the cutting tool is transported and replaced inside the cutting arm, the cutting arm does not need to be moved and adjusted, and the situation that the cutting arm is repeatedly moved out, reset and re-aligned is avoided.

Description

Technical Field

[0001] This invention relates to the field of parts cutting technology, and in particular to a CNC cutting device and method for aerospace parts. Background Technology

[0002] In the field of CNC machining of aerospace components, irregularly shaped groove structures such as engine casing inner cavity grooves, hydraulic valve body flow channel grooves, and landing gear joint internal grooves are widely used. These grooves are mostly located in closed or semi-closed spaces with complex groove contours. The machining process requires multiple steps, including roughing, finishing, and chamfering, and requires changing various types of cutting tools. Currently, the industry mostly adopts a machining solution for machining internal irregularly shaped grooves using a multi-axis cutting arm with a cutting spindle. The tool magazine is independently set in a fixed position within the working range of the cutting arm. After completing a single operation, the cutting arm drives the end spindle to exit the internal cavity of the workpiece, moves to the external tool magazine to complete the tool loading and unloading action, and then returns to the machining station. After repositioning and calibration, the next operation is carried out. Some improved solutions attach a small tool holder to the outside of the cutting arm to shorten the travel distance during tool changing. However, the tool changing process still requires the spindle to complete tool alignment and loading / unloading outside the arm.

[0003] However, in the aforementioned prior art, machining a single irregular groove requires multiple tool changes, and the cutting arm needs to be repeatedly moved out, reset, and re-calibrated. The tool change auxiliary time accounts for a high proportion of the total machining time, making it difficult to improve the overall machining efficiency. At the same time, the cutting arm needs to be repositioned and calibrated each time it returns to the machining station. Multiple tool changes can easily lead to cumulative positioning errors, making it difficult to reliably guarantee the high-precision machining requirements of aerospace parts. Furthermore, in the narrow and enclosed cavity space, the repeated entry and exit of the cutting arm can easily cause motion interference with the inner wall of the workpiece, posing a risk of scratching the workpiece and breaking the tool, resulting in insufficient stability of machining operation. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC cutting device and method for aerospace parts, which solves the problem that in the prior art, the machining of a single irregular groove requires multiple tool changes, the cutting arm needs to be repeatedly moved out, reset and re-set, the tool changing auxiliary time accounts for a high proportion of the total machining time, and the overall machining efficiency is difficult to improve.

[0005] To achieve the above objectives, the present invention provides a CNC cutting device for aerospace parts, including a cutting adjustment table and a CNC cutting assembly; The CNC cutting assembly includes two clamping and rotating mechanisms, a cutting arm, an internal lifting unit, a lifting slider, a cutting tool, and a rotating storage unit. The two clamping and rotating mechanisms and the cutting arm are both mounted on the cutting adjustment table. An aerospace component is disposed between the two clamping and rotating mechanisms. The lifting slider and the internal lifting unit are both disposed inside the cutting arm. The output end of the internal lifting unit is connected to the lifting slider. The cutting tool is installed inside the lifting slider. The rotating storage unit is disposed on one side of the cutting arm.

[0006] The cutting adjustment table includes two longitudinal moving parts, a transverse moving part, and a secondary adjustment mechanism. The two longitudinal moving parts are symmetrically arranged on both sides of the aerospace component. The transverse moving part is located at the output end of the two longitudinal moving parts, and the secondary adjustment mechanism is located at the output end of the transverse moving part.

[0007] The secondary adjustment mechanism includes an X-axis adjustment component, a Y-axis adjustment component, a lifting adjustment component, and a support plate. The X-axis adjustment component is located at the output end of the transverse component. The output end of the X-axis adjustment component is fixedly connected to the Y-axis adjustment component. The output end of the Y-axis adjustment component is fixedly connected to the lifting adjustment component. The output end of the lifting adjustment component is fixedly connected to the support plate. The cutting arm is located below the support plate.

[0008] The clamping and rotating mechanism includes a support cylinder, a rotating drive component, and a clamping drive component. The support cylinder is disposed at the output end of the lateral movement component and located on one side of the aerospace component. The rotating drive component is disposed at one end of the support cylinder. The output end of the rotating drive component passes through the support cylinder and is fixedly connected to the clamping drive component. The output end of the clamping drive component is in contact with the aerospace component. The CNC cutting assembly also includes a collection groove, which is installed below the two support cylinders.

[0009] The cutting arm includes an upper arm and a lower arm. The upper arm is fixedly connected to the support plate, and the lower arm is located below the upper arm.

[0010] The internal lifting unit includes an internal winding component, an internal winding rope, two limiting blocks, and two magnetic plates. Both the upper arm and the lower arm have two sliding grooves. The two limiting blocks are symmetrically arranged on both sides of the lifting slider and are slidably connected to their respective sliding grooves. The two magnetic plates are symmetrically arranged on the inner wall of the lower arm and attract each other to the lifting slider. The internal winding component is located at the inner top of the upper arm. The output end of the internal winding component is fixedly connected to one end of the internal winding rope, and the other end of the internal winding rope is fixedly connected to the lifting slider.

[0011] The CNC cutting assembly includes a support frame and two arm lifting components. The support frame is located below the upper arm and the lower arm is located below the support frame. The two arm lifting components are sequentially located above the support frame. The output ends of the two arm lifting components pass through the support frame and are fixedly connected to the lower arm.

[0012] The lifting slider is internally provided with a cutting angle adjustment component, a cutting drive component, a mounting cylinder, a mounting component, and a mounting block. The cutting angle adjustment component is located inside the lifting slider, and its output end is fixedly connected to the cutting drive component. The output end of the cutting drive component is fixedly connected to the mounting cylinder. The mounting component is located outside the mounting cylinder, and its output end passes through the mounting cylinder and is fixedly connected to the mounting block. The cutting tool includes a tool body and a docking block. The tool body is disposed on the docking block, which is located inside the mounting cylinder. The mounting block and the docking block are mutually adapted.

[0013] The rotary storage unit includes a rotary storage component, a rotary storage chamber, multiple material changing lifting components, two material changing traverse components, and two material changing clamping components. The rotary storage component is located on one side of the upper arm body, and its output end is fixedly connected to the rotary storage chamber. Multiple cutting tools are provided inside the rotary storage chamber. The multiple material changing lifting components are sequentially arranged below the support plate, and their output ends are respectively fixedly connected to two corresponding material changing clamping components. The upper arm body has an opening, and the two material changing clamping components are symmetrically arranged on one side of the opening.

[0014] The present invention also provides a CNC cutting method for aerospace parts, using the aforementioned CNC cutting device for aerospace parts, comprising the following steps: The cutting tool is mounted on the internal lifting unit; The clamping and rotating mechanism clamps and rotates the aerospace components to adjust their angle. The cutting adjustment table moves the cutting arm above the aerospace component; The lifting slider slides inside the cutting arm, moving the cutting tool to the bottom of the cutting arm and into the interior of the aerospace component; The cutting tool is activated to process irregular grooves. After the tool is used, the internal lifting unit is activated to move the lifting slider above the cutting arm. The rotating storage unit allows for the disassembly and replacement of the cutting blade; After replacement, the new cutting tool slides down from the top of the cutting arm and repositions inside the aerospace component. This process is repeated using different tools until the irregular groove machining is completed.

[0015] This invention discloses a CNC cutting device and method for aerospace components. The cutting tool is mounted on an internal lifting unit. The aerospace component is clamped and rotated at an adjusted angle via a clamping and rotating mechanism. A cutting adjustment table moves the cutting arm above the aerospace component. A lifting slider slides inside the cutting arm, moving the cutting tool to the bottom of the cutting arm and into the aerospace component. The cutting tool is activated to process irregular grooves. After the tool is used, the internal lifting unit is activated, and the lifting slider moves back above the cutting arm. A rotating storage unit disassembles and replaces the cutting tool. After replacement, the new cutting tool slides down from the top of the cutting arm and repositions itself inside the aerospace component. This process is repeated using different tools until the irregular groove processing is completed. By moving the cutting arm to the processing position, the cutting tool is transported and replaced within the cutting arm, eliminating the need for the cutting arm to move and adjust, thus avoiding repeated repositioning and re-alignment, and improving tool changing and processing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of the CNC cutting device for aerospace parts of the present invention.

[0018] Figure 2 This is a cross-sectional view of the CNC cutting device for aerospace parts according to the present invention.

[0019] Figure 3 This is the invention Figure 2 A sectional view along line AA.

[0020] Figure 4 This is a structural schematic diagram of the CNC cutting component of the present invention.

[0021] Figure 5 This is the invention Figure 4 Enlarged view of the local structure at point B.

[0022] Figure 6 This is a schematic diagram of the cutting arm of the present invention.

[0023] Figure 7 This is the invention Figure 6 Enlarged view of the local structure at point C.

[0024] Figure 8 This is a cross-sectional view of the upper arm body of the present invention.

[0025] Figure 9 This is the invention Figure 8 DD-line sectional view.

[0026] Figure 10 This is the invention Figure 8 Enlarged view of the local structure at point E.

[0027] Figure 11 This is a flowchart of the steps of the CNC cutting method for aerospace parts of the present invention.

[0028] 1-Cutting arm, 2-Lifting slider, 3-Cutting tool, 4-Aerospace component, 5-Longitudinal movement component, 6-Transverse movement component, 7-X-axis adjustment component, 8-Y-axis adjustment component, 9-Lifting adjustment component, 10-Support plate, 11-Support cylinder, 12-Clamping drive component, 13-Collection groove, 14-Upper arm body, 15-Lower arm body, 16-Internal winding component, 17-Internal winding rope, 18-Limit block, 19-Magnetic suction plate, 20-Support frame, 21-Arm lifting component, 22-Cutting angle adjustment component, 23-Cutting drive component, 24-Mounting cylinder, 25-Mounting component, 26-Mounting block, 27-Tool body, 28-Diamond block, 29-Rotary storage component, 30-Rotary storage bin, 31-Material changing lifting component, 32-Material changing transverse movement component, 33-Groove, 34-Material changing clamping component, 35-Opening, 36-Rotary drive component. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] Please see Figures 1 to 10This invention provides a CNC cutting device for aerospace parts, including a cutting adjustment table and a CNC cutting assembly. The CNC cutting assembly includes two clamping and rotating mechanisms, a cutting arm 1, an internal lifting unit, a lifting slider 2, a cutting tool 3, and a rotating storage unit. The two clamping and rotating mechanisms and the cutting arm 1 are both disposed on the cutting adjustment table, and an aerospace part 4 is disposed between the two clamping and rotating mechanisms. The lifting slider 2 and the internal lifting unit are both disposed inside the cutting arm 1. The output end of the internal lifting unit is connected to the lifting slider 2. The cutting tool 3 is installed inside the lifting slider 2, and the rotating storage unit is disposed on one side of the cutting arm 1.

[0031] In this embodiment, the cutting adjustment table enables the cutting arm 1 to move over a wide range and perform high-precision fine-tuning, quickly positioning the cutting arm 1 to the processing station; the two clamping and rotating mechanisms are used to clamp and fix the aerospace component 4, and can drive the aerospace component 4 to rotate and adjust its angle to adapt to the processing requirements of irregular grooves in different circumferential positions; the cutting arm 1 has a closed arm structure, providing a channel space for tool lifting and internal tool changing; the internal lifting unit can drive the lifting slider 2 to move vertically up and down along the inside of the cutting arm 1, realizing the up and down transport of the cutting tool 3 inside the arm body; the lifting slider 2 is used to support the cutting drive and tool mounting structure. The cutting tool 3 is driven to complete the cutting process. The rotary storage unit is used to store various sizes of the cutting tool 3. It can be used with the lifting slider 2 to disassemble and replace the tool inside the cutting arm 1. Through the coordinated operation of the above structures, after the cutting arm 1 is moved and positioned to the processing position once, all tool changing actions can be completed inside the arm body. There is no need for the cutting arm 1 to repeatedly move out of the workpiece chamber, reset and re-set the tool, which greatly shortens the tool changing auxiliary time, eliminates the cumulative error caused by multiple positioning, and avoids workpiece scratches and motion interference caused by the arm body repeatedly entering and leaving the narrow chamber. This significantly improves the efficiency, accuracy and operation stability of the machining of irregular grooves of aerospace parts.

[0032] Furthermore, the cutting adjustment table includes two longitudinal moving parts 5, a transverse moving part 6, and a secondary adjustment mechanism. The two longitudinal moving parts 5 are symmetrically arranged on both sides of the aerospace component 4, the transverse moving part 6 is located at the output end of the two longitudinal moving parts 5, and the secondary adjustment mechanism is located at the output end of the transverse moving part 6.

[0033] In this embodiment, the two longitudinal moving components 5 are high-precision linear modules that can synchronously drive the transverse moving component 6 to perform linear reciprocating motion along the longitudinal direction; the transverse moving component 6 is a high-precision linear module that can drive the secondary adjustment mechanism to perform linear reciprocating motion along the transverse direction; the two cooperate with each other to realize the large-range planar movement of the cutting arm 1, which can quickly move the cutting arm 1 to the processing area above the aerospace component 4 to complete the coarse positioning; the secondary adjustment mechanism is used to realize micron-level precise fine adjustment of the processing position to ensure the positioning accuracy of the irregular groove processing.

[0034] Furthermore, the secondary adjustment mechanism includes an X-axis adjustment component 7, a Y-axis adjustment component 8, a lifting adjustment component 9, and a support plate 10. The X-axis adjustment component 7 is disposed at the output end of the transverse component 6. The output end of the X-axis adjustment component 7 is fixedly connected to the Y-axis adjustment component 8. The output end of the Y-axis adjustment component 8 is fixedly connected to the lifting adjustment component 9. The output end of the lifting adjustment component 9 is fixedly connected to the support plate 10. The cutting arm 1 is disposed below the support plate 10.

[0035] In this embodiment, both the X-axis adjustment component 7 and the Y-axis adjustment component 8 are micron-level linear modules, which drive the subsequent structure to perform high-precision displacement adjustment along the two horizontal orthogonal directions X and Y, respectively; the lifting adjustment component 9 is a high-precision servo electric cylinder, which can drive the support plate 10 to perform vertical lifting and lowering movements, and precisely adjust the processing height of the cutting arm 1; the support plate 10 is a rigid connecting plate, which provides stable installation support for the cutting arm 1 and the rotating storage unit; through two-stage precision adjustment in the X, Y, and Z directions, the processing position of the cutting tool 3 can be precisely controlled to meet the high-precision processing requirements of irregular grooves in aerospace parts.

[0036] Furthermore, the clamping and rotating mechanism includes a support cylinder 11, a rotation drive component 36, and a clamping drive component 12. The support cylinder 11 is disposed at the output end of the transverse component 6 and located on one side of the aerospace component 4. The rotation drive component 36 is disposed at one end of the support cylinder 11. The output end of the rotation drive component 36 passes through the support cylinder 11 and is fixedly connected to the clamping drive component 12. The output end of the clamping drive component 12 contacts the aerospace component 4. The CNC cutting assembly also includes a collection groove 13, which is installed below the two support cylinders 11.

[0037] In this embodiment, the support cylinder 11 is a hollow cylindrical structure, providing installation support and protection for the rotary drive component 36 and the clamping drive component 12; the rotary drive component 36 is a servo motor, which can drive the clamping drive component 12 to rotate as a whole, thereby driving the clamped aerospace component 4 to rotate and adjust the circumferential angle to adapt to the processing of grooves in different directions; the clamping drive component 12 is an end-face top-holding structure, with the output end being a whole flat clamping plate, which can press the aerospace component 4 from both ends, relying on end-face friction to fix the workpiece, ensuring that the workpiece does not move or deflect during processing; when cutting from above, water can be sprayed to cool the cutting area and remove metal impurities; the collection tank 13 is an open tank located directly below the two support cylinders 11, used to collect wastewater mixed with metal chips and cooling waste liquid, keeping the processing table clean and facilitating subsequent centralized cleaning and recycling.

[0038] Furthermore, the cutting arm 1 includes an upper arm body 14 and a lower arm body 15. The upper arm body 14 is fixedly connected to the support plate 10, and the lower arm body 15 is located below the upper arm body 14.

[0039] In this embodiment, the upper arm 14 is a fixed arm segment, rigidly connected to the support plate 10, providing installation space for the upper structure of the internal lifting unit and the material changing channel; the lower arm 15 is a movable arm segment, which can adjust the extension length according to the cavity depth of the aerospace component 4 to adapt to the machining of irregular grooves of different depths, and at the same time provides guidance for the descent stroke of the lifting slider 2 to ensure the verticality and stability of the tool feed.

[0040] Furthermore, the internal lifting unit includes an internal winding component 16, an internal winding rope 17, two limiting blocks 18, and two magnetic suction plates 19. The upper arm body 14 and the lower arm body 15 each have two sliding grooves 33. The two limiting blocks 18 are symmetrically arranged on both sides of the lifting slider 2, and the two limiting blocks 18 are slidably connected to the corresponding sliding grooves 33. The two magnetic suction plates 19 are symmetrically arranged on the inner wall of the lower arm body 15, and the magnetic suction plates 19 attract each other to the lifting slider 2. The internal winding component 16 is located at the inner top of the upper arm body 14. The output end of the internal winding component 16 is fixedly connected to one end of the internal winding rope 17, and the other end of the internal winding rope 17 is fixedly connected to the lifting slider 2.

[0041] In this embodiment, the internal winding component 16 is a servo winding motor, which can precisely control the lifting height and feed speed of the lifting slider 2 by winding or releasing the internal winding rope 17 in forward and reverse directions. The internal winding rope 17 is a high-strength stainless steel wire rope, which bears the weight of the lifting slider 2 and all internal components, ensuring the reliability of the lifting process. The two limiting blocks 18 are respectively embedded in the corresponding sliding grooves 33 and slide, providing precise guidance for the entire lifting movement of the lifting slider 2, preventing circumferential deflection during the lifting process, and ensuring the cutting perpendicularity of the cutting tool 3. The two magnetic suction plates 19 are electromagnet structures. When the lifting slider 2 descends to the processing position at the bottom of the lower arm 15, the magnetic suction plates 19 are energized to generate magnetic force, attracting and fixing the lifting slider 2, eliminating vibration during the cutting process, and improving cutting accuracy and surface quality. The sliding grooves 33 are arranged through the inner walls of the upper arm 14 and the lower arm 15 to form a continuous guide track.

[0042] Furthermore, the CNC cutting assembly includes a support frame 20 and two arm lifting components 21. The support frame 20 is located below the upper arm 14, and the lower arm 15 is located below the support frame 20. The two arm lifting components 21 are sequentially arranged above the support frame 20. The output ends of the two arm lifting components 21 both penetrate the support frame 20 and are fixedly connected to the lower arm 15.

[0043] In this embodiment, the support frame 20 is a rigid frame, fixedly installed on the lower end face of the upper arm 14, providing installation support for the two arm lifting components 21; the two arm lifting components 21 are synchronous electric cylinders, which can synchronously drive the lower arm 15 to perform vertical lifting movements, adjust the extension length of the lower arm 15 to adapt to workpiece chambers of different depths; at the same time, when changing tools inside, the lower arm 15 can be raised to avoid the material changing operation space and ensure that the tool changing action is completed smoothly.

[0044] Furthermore, the lifting slider 2 is internally provided with a cutting angle adjustment component 22, a cutting drive component 23, a mounting cylinder 24, a mounting component 25, and a mounting block 26. The cutting angle adjustment component 22 is disposed inside the lifting slider 2, and its output end is fixedly connected to the cutting drive component 23. The output end of the cutting drive component 23 is fixedly connected to the mounting cylinder 24. The mounting component 25 is disposed outside the mounting cylinder 24, and its output end passes through the mounting cylinder 24 and is fixedly connected to the mounting block 26. The cutting tool 3 includes a tool body 27 and a docking block 28. The tool body 27 is disposed on the docking block 28, and the docking block 28 is located inside the mounting cylinder 24. The mounting block 26 and the docking block 28 are mutually adapted.

[0045] In this embodiment, the cutting angle adjustment component 22 is a high-precision servo rotary table, which can drive the cutting drive component 23 and the mounting cylinder 24 to rotate as a whole, precisely adjusting the cutting angle of the cutting tool 3 to adapt to the processing requirements of groove walls and chamfers with different angles in irregular grooves; the cutting drive component 23 is a high-speed electric spindle, which can drive the mounting cylinder 24 and the cutting tool 3 to perform high-speed rotational motion to achieve metal cutting processing; the mounting cylinder 24 is a carrier for tool docking, and its internal cavity is precisely adapted to the docking block 28; the mounting component 25 is a miniature electric push rod, which can drive the mounting block 26 to perform radial telescopic movement, realizing the locking and unlocking of the docking block 28, and completing the quick loading and unloading of the tool; the tool body 27 is a cutting execution component, and different specifications of the tool body 27 correspond to different processes such as roughing, semi-finishing, finishing, and chamfering; the docking block 28 is a standard quick-change docking structure, which can achieve precise positioning and cooperation with the mounting cylinder 24, ensuring the repeatability of positioning accuracy after tool changing and eliminating positional errors caused by tool changing.

[0046] Furthermore, the rotary storage unit includes a rotary storage component 29, a rotary storage chamber 30, multiple material changing lifting components 31, two material changing transverse moving components 32, and two material changing clamping components 34. The rotary storage component 29 is disposed on one side of the upper arm body 14, and the output end of the rotary storage component 29 is fixedly connected to the rotary storage chamber 30. Multiple cutting blades 3 are disposed inside the rotary storage chamber 30. Multiple material changing lifting components 31 are sequentially disposed below the support plate 10, and the output ends of multiple material changing lifting components 31 are respectively fixedly connected to two corresponding material changing clamping components 34. The upper arm body 14 has an opening 35, and the two material changing clamping components 34 are symmetrically disposed on one side of the opening 35.

[0047] In this embodiment, the rotary storage component 29 is a cam divider, which can drive the rotary storage bin 30 to rotate intermittently, precisely rotating the cutting tool 3 of the target specification to the material changing station; the rotary storage bin 30 is a disc-type tool magazine structure, which stores various sizes of cutting tools 3 in a circular manner to meet the tool changing requirements of multi-process machining of irregular grooves; the multiple material changing lifting components 31 are electric cylinders, which can drive the material changing transverse component 32 and the material changing clamping component 34 to perform vertical lifting movements, adjusting... The material changing height is adjusted; the two material changing lateral movement components 32 are electric cylinders, which can drive the material changing clamping component 34 to move laterally, passing through the opening 35 and entering the interior of the upper arm body 14; the two material changing clamping components 34 are miniature pneumatic grippers, which can clamp the docking block 28 of the cutting tool 3 to complete the material changing action of taking out the old tool and loading the new tool; the opening 35 is opened on the side wall of the upper arm body 14 to provide a channel for the material changing component to enter and exit the arm body, realizing the tool flow between the external tool magazine and the interior of the arm body.

[0048] When using a CNC cutting device for aerospace parts according to this embodiment, the operator first starts the equipment through the CNC system. Specifically, the CNC system uses a closed-loop synchronous linkage control for the arm lifting component 21 and the internal winding component 16: the system collects the extension and retraction displacement of the arm lifting component 21 in real time, and synchronously drives the internal winding component 16 to perform corresponding actions at a 1:1 displacement ratio; when the arm lifting component 21 drives the lower arm 15 to extend downward, the internal winding component 16 synchronously releases an equal length of the internal winding rope 17. When the lifting arm 21 drives the lower arm 15 to retract upwards, the internal winding component 16 simultaneously winds up an equal length of the internal winding rope 17. Through this linkage control, the relative position of the lifting slider 2 with respect to the lower arm 15 can always be kept stable, while the tension of the internal winding rope 17 is kept constant. This avoids the internal winding rope 17 being pulled and tightened when the arm extends, which would cause the tool position to shift, and also avoids the internal winding rope 17 becoming loose and accumulating when the arm retracts, which would cause jamming. This ensures the processing positioning accuracy and operational reliability under different arm extension lengths. At this time, all components automatically reset to their initial state; the internal winding component 16 winds up the internal winding rope 17, raising the lifting slider 2 to the upper material changing position of the upper arm 14; the arm lifting component 21 drives the lower arm 15 to rise to its initial position; the aerospace part 4 to be processed is placed between the two clamping drive components 12, and the clamping drive components 12 on both sides advance synchronously, relying on the end face clamping plates to press the aerospace part 4 against both end faces to fix the workpiece; the rotation drive component 36 can drive the aerospace part 4 to rotate to a preset processing angle according to the processing program; the cutting adjustment table is activated, and the two longitudinal movement components 5 and the transverse movement component 6 move in coordination to... The cutting arm 1 is coarsely positioned above the machining area of ​​the aerospace component 4; subsequently, the X-axis adjustment component 7, the Y-axis adjustment component 8, and the lifting adjustment component 9 perform secondary fine adjustments to precisely position the cutting arm 1 to the machining station; the internal winding component 16 releases the internal winding rope 17, and the lifting slider 2 descends along the inside of the cutting arm 1 under the guidance of the limiting block 18 and the slide groove 33; when it descends to the machining position at the bottom of the lower arm body 15, the magnetic suction plate 19 is energized to attract and fix the lifting slider 2; the cutting drive component 23 is activated, driving the cutting tool 3 to rotate at high speed, while the cutting angle adjustment component 22 adjusts the tool to a preset cutting angle, and begins to cut the aerospace component 4. The irregular groove inside the aerospace component 4 is processed according to the corresponding process; during the processing, the cutting area is sprayed with water to cool it down and remove metal impurities, and the generated wastewater and chips fall into the collection tank 13 below for centralized collection; after the single process is completed, the cutting drive component 23 stops running; the magnetic suction plate 19 is de-energized and releases its adsorption; the internal winding component 16 winds up the internal winding rope 17, driving the lifting slider 2 to rise to the material changing position of the upper arm body 14 and align it with the opening 35; the material changing lifting component 31 drives the material changing clamping component 34 to adjust to the corresponding height; the material changing transverse component 32 drives the material changing clamping component 34 to pass through the opening 35 and enter the interior of the upper arm body 14; The mounting component 25 drives the mounting block 26 to retract, releasing the docking block 28; the material changing clamping component 34 clamps the old cutting tool 3, and exits the upper arm body 14 along with the material changing lateral movement component 32; the rotating storage component 29 drives the rotating storage bin 30 to rotate, rotating the new cutting tool 3 corresponding to the next process to the material changing station; the material changing lateral movement component 32 again drives the material changing clamping component 34 to clamp the new cutting tool 3, and sends it through the opening 35 into the mounting cylinder 24; the mounting component 25 drives the mounting block 26 to extend, locking the docking block 28, completing the tool replacement; the material changing clamping component 34 releases and exits the upper arm body 14.After the tool change is completed, the internal winding component 16 releases the internal winding rope 17 again, causing the lifting slider 2 and the new cutting tool 3 to descend to the processing position. The magnetic suction plate 19 is then re-attached and fixed, and the next processing step begins. The tool change and processing steps are repeated, using different specifications of cutting tools 3 to complete all processes such as roughing, semi-finishing, finishing, and chamfering, until all the irregular grooves of the aerospace component 4 are processed. After processing, the internal winding component 16 drives the lifting slider 2 to rise and reset; the cutting adjustment table moves the cutting arm 1 away; the clamping drive component 12 retracts and releases, removing the processed aerospace component 4.

[0049] Please see Figure 11 The present invention also provides a CNC cutting method for aerospace parts, comprising the following steps: S1: Installing the cutting tool 3 on the internal lifting unit; S2: Clamping and rotating the aerospace part 4 using the clamping and rotating mechanism to adjust the angle; S3: Moving the cutting arm 1 above the aerospace part 4 using the cutting adjustment table; S4: Sliding the lifting slider 2 inside the cutting arm 1 to move the cutting tool 3 to the bottom of the cutting arm 1 and into the aerospace part 4; S5: Starting the cutting tool 3 to process the irregular groove. After the tool is used, the internal lifting unit is started, and the lifting slider 2 is moved above the cutting arm 1; S6: Disassembling and replacing the cutting tool 3 using the rotating storage unit; S7: After replacement, the new cutting tool 3 slides down from the top of the cutting arm 1 and returns to the aerospace part 4. This process is repeated using different tools until the irregular groove processing is completed.

[0050] The cutting tool 3 is mounted on the internal lifting unit; the aerospace component 4 is clamped and rotated at an adjusted angle by the clamping and rotating mechanism; the cutting adjustment table moves the cutting arm 1 above the aerospace component 4; the lifting slider 2 slides inside the cutting arm 1, moving the cutting tool 3 to the bottom of the cutting arm 1 and into the aerospace component 4; the cutting tool 3 is activated to process the irregular groove; after the tool is used, the internal lifting unit is activated, and the lifting slider 2 moves above the cutting arm 1; the rotating storage unit disassembles and replaces the cutting tool 3; after replacement, the new cutting tool 3 slides down from the top of the cutting arm 1 and returns to the aerospace component 4, and the operation is repeated using different tools until the irregular groove processing is completed.

[0051] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A CNC cutting device for aerospace parts, comprising a cutting adjustment table, characterized in that, It also includes CNC cutting components; The CNC cutting assembly includes two clamping and rotating mechanisms, a cutting arm, an internal lifting unit, a lifting slider, a cutting tool, and a rotating storage unit. The two clamping and rotating mechanisms and the cutting arm are both mounted on the cutting adjustment table. An aerospace component is disposed between the two clamping and rotating mechanisms. The lifting slider and the internal lifting unit are both disposed inside the cutting arm. The output end of the internal lifting unit is connected to the lifting slider. The cutting tool is installed inside the lifting slider. The rotating storage unit is disposed on one side of the cutting arm.

2. The CNC cutting device for aerospace parts as described in claim 1, characterized in that, The cutting adjustment table includes two longitudinal moving parts, a transverse moving part, and a secondary adjustment mechanism. The two longitudinal moving parts are symmetrically arranged on both sides of the aerospace component. The transverse moving part is located at the output end of the two longitudinal moving parts, and the secondary adjustment mechanism is located at the output end of the transverse moving part.

3. The CNC cutting device for aerospace parts as described in claim 2, characterized in that, The secondary adjustment mechanism includes an X-axis adjustment component, a Y-axis adjustment component, a lifting adjustment component, and a support plate. The X-axis adjustment component is located at the output end of the transverse component. The output end of the X-axis adjustment component is fixedly connected to the Y-axis adjustment component. The output end of the Y-axis adjustment component is fixedly connected to the lifting adjustment component. The output end of the lifting adjustment component is fixedly connected to the support plate. The cutting arm is located below the support plate.

4. The CNC cutting device for aerospace parts as described in claim 3, characterized in that, The clamping and rotating mechanism includes a support cylinder, a rotating drive component, and a clamping drive component. The support cylinder is disposed at the output end of the lateral movement component and located on one side of the aerospace component. The rotating drive component is disposed at one end of the support cylinder. The output end of the rotating drive component passes through the support cylinder and is fixedly connected to the clamping drive component. The output end of the clamping drive component is in contact with the aerospace component. The CNC cutting assembly also includes a collection groove, which is installed below the two support cylinders.

5. The CNC cutting device for aerospace parts as described in claim 4, characterized in that, The cutting arm includes an upper arm body and a lower arm body. The upper arm body is fixedly connected to the support plate, and the lower arm body is located below the upper arm body.

6. The CNC cutting device for aerospace parts as described in claim 5, characterized in that, The internal lifting unit includes an internal winding component, an internal winding rope, two limiting blocks, and two magnetic plates. Both the upper arm and the lower arm have two sliding grooves. The two limiting blocks are symmetrically arranged on both sides of the lifting slider and are slidably connected to their respective sliding grooves. The two magnetic plates are symmetrically arranged on the inner wall of the lower arm and attract each other to the lifting slider. The internal winding component is located at the inner top of the upper arm. The output end of the internal winding component is fixedly connected to one end of the internal winding rope, and the other end of the internal winding rope is fixedly connected to the lifting slider.

7. The CNC cutting device for aerospace parts as described in claim 6, characterized in that, The CNC cutting assembly includes a support frame and two arm lifting components. The support frame is located below the upper arm and the lower arm is located below the support frame. The two arm lifting components are sequentially arranged above the support frame. The output ends of the two arm lifting components both pass through the support frame and are fixedly connected to the lower arm.

8. The CNC cutting device for aerospace parts as described in claim 7, characterized in that, The lifting slider is internally provided with a cutting angle adjustment component, a cutting drive component, a mounting cylinder, a mounting component, and a mounting block. The cutting angle adjustment component is located inside the lifting slider. The output end of the cutting angle adjustment component is fixedly connected to the cutting drive component. The output end of the cutting drive component is fixedly connected to the mounting cylinder. The mounting component is located outside the mounting cylinder. The output end of the mounting component passes through the mounting cylinder and is fixedly connected to the mounting block. The cutting tool includes a tool body and a docking block. The tool body is disposed on the docking block, which is located inside the mounting cylinder. The mounting block and the docking block are mutually adapted.

9. The CNC cutting device for aerospace parts as described in claim 8, characterized in that, The rotary storage unit includes a rotary storage component, a rotary storage chamber, multiple material changing lifting components, two material changing traversing components, and two material changing clamping components. The rotary storage component is disposed on one side of the upper arm body. The output end of the rotary storage component is fixedly connected to the rotary storage chamber. Multiple cutting tools are disposed inside the rotary storage chamber. Multiple material changing lifting components are sequentially disposed below the support plate. The output ends of the multiple material changing lifting components are respectively fixedly connected to two corresponding material changing clamping components. The upper arm body has an opening, and two material changing clamping components are symmetrically disposed on one side of the opening.

10. A CNC cutting method for aerospace parts, employing the CNC cutting device for aerospace parts as described in claim 9, characterized in that, Includes the following steps: The cutting tool is mounted on the internal lifting unit; The clamping and rotating mechanism clamps and rotates the aerospace components to adjust their angle. The cutting adjustment table moves the cutting arm above the aerospace component; The lifting slider slides inside the cutting arm, moving the cutting tool to the bottom of the cutting arm and into the interior of the aerospace component; The cutting tool is activated to process irregular grooves. After the tool is used, the internal lifting unit is activated to move the lifting slider above the cutting arm. The rotating storage unit allows for the disassembly and replacement of the cutting blade; After replacement, the new cutting tool slides down from the top of the cutting arm and repositions inside the aerospace component. This process is repeated using different tools until the irregular groove machining is completed.

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