Aero-engine turbine guide vane composite processing equipment

Abstract

This invention discloses a composite machining equipment for aero-engine turbine guide vanes, belonging to the field of mechanical combination machining technology. It includes an integrated electrical control box and a composite machining table. The composite machining table integrates a turning unit, an electrolytic roughing unit, a drying and strengthening unit, a finish milling unit, and a closed-loop conveyor system. The closed-loop conveyor system enables precise gripping, positioning, and automatic transfer of workpieces between the various machining units. Roughing is completed by combining turning and electrolytic processes, while hot air drying combined with laser strengthening improves workpiece performance. Finish milling ensures high precision requirements. This equipment achieves integrated continuous machining of turbine guide vanes, shortening the process flow, reducing manual intervention, improving processing efficiency and quality stability, and solving the problems of dispersed processing steps and large precision fluctuations in traditional machining. It is suitable for mass production of aero-engine parts.

Description

Technical Field

[0001] This invention relates to the field of mechanical combination processing technology, and more specifically to composite processing equipment for aero-engine turbine guide vanes. Background Technology

[0002] As a core hot-end component of an aero-engine, the turbine guide vane's machining quality directly affects the engine's aerodynamic performance, thermal cycle efficiency, and operational reliability. This component operates in harsh environments with high temperature, high pressure, and high airflow scouring, placing stringent requirements on blade profile accuracy, surface quality, and high-temperature fatigue performance.

[0003] In existing processing technologies, the production of turbine guide vanes generally adopts a multi-equipment, step-by-step processing mode: the blank needs to be roughed and finished on turning and milling equipment, the surface burrs need to be removed separately by grinding or special electrolytic equipment, and the blade strengthening also needs to be transferred to laser processing equipment for specialized processing. This decentralized processing flow has obvious drawbacks. The transfer, clamping and repositioning of the workpiece between multiple machines not only greatly prolongs the production cycle, but also easily reduces the overall processing accuracy due to multiple clamping errors.

[0004] From a processing technology perspective, while simple mechanical cutting can quickly remove excess material, the mechanical stress generated during the cutting process can easily lead to micro-cracks on the workpiece surface, and it is difficult to completely remove residual burrs, increasing the workload of subsequent manual processing. On the other hand, relying solely on electrolytic machining to remove excess material from the blank has a material removal rate far lower than mechanical cutting, significantly extending the processing cycle and failing to meet the needs of large-scale mass production of aerospace components. Furthermore, if the electrolyte residue on the workpiece surface after electrolytic machining is not thoroughly cleaned, it can contaminate subsequent processing steps and even affect the material properties of the workpiece. Existing strengthening processes are mostly standalone procedures, poorly integrated with previous processing flows, making it difficult to achieve integrated processing and strengthening.

[0005] At the equipment operation and handling level, traditional processing equipment relies heavily on manual or semi-automated devices for workpiece transfer, and positioning and clamping depend solely on a single chuck. Workpieces are prone to vibration and displacement during high-speed processing, leading to fluctuations in dimensional accuracy. Furthermore, the equipment's structural design lacks integration considerations, with each functional module operating relatively independently. Tool changes require stopping the machine to disassemble protective components, resulting in poor maintenance convenience and difficulty in flexibly adding new functional units according to processing needs. In addition, excessive manual intervention is required; from workpiece transfer and parameter adjustment to quality sampling, operators must participate throughout the entire process. This not only increases labor costs but also increases the risk of processing defects due to human error, making it difficult to guarantee the consistency of quality within the same batch of workpieces.

[0006] With the rapid development of the aerospace industry, the market has placed higher demands on the production efficiency, processing accuracy, and performance quality of aero-engine turbine guides. Traditional processing techniques and equipment can no longer meet the needs of modern mass production.

[0007] Therefore, developing a composite processing equipment for turbine guide vanes that integrates multiple processes, has a high degree of automation, and provides stable processing quality has become a key technical problem that urgently needs to be solved in the industry. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a composite processing equipment for aero-engine turbine guide vanes, aiming to solve the problems of traditional turbine guide vane processing being fragmented and inefficient, difficulty in balancing efficiency and surface quality in rough machining, incomplete cleaning of electrolyte residues, insufficient blade strengthening, unstable positioning and clamping, large fluctuations in accuracy, inconvenient equipment maintenance, poor expandability, excessive manual intervention, and poor quality consistency.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A composite machining equipment for aero-engine turbine guide vanes includes an integrated electrical control box, which is a square box. A composite machining table is fixed on the upper surface of the integrated electrical control box. A turning machining unit and a fine milling machining unit are respectively provided at the two transverse ends of the composite machining table. An electrolytic roughing machining unit and a drying and strengthening unit are arranged sequentially between the turning machining unit and the fine milling machining unit. A closed-loop conveying system is provided between each machining unit.

[0011] As an optimized solution, the electrolytic roughing unit includes an electrolytic box, which is a square box with an open top, and the lower end of the electrolytic box is fixed to the middle of the upper surface of the composite processing table.

[0012] As an optimized solution, a pulse power supply is fixed on one longitudinal outer wall of the electrolysis tank, and an electrolytic cathode electrically connected to the pulse power supply is fixed on the longitudinal inner wall of the electrolysis tank.

[0013] As an optimized solution, an electric heating plate is fixed in the middle of the inner bottom surface of the electrolysis tank.

[0014] As an optimized solution, the drying enhancement unit includes a drying chamber, which is a double-layered heat-insulated box with a circular internal cavity and a square external shell. Several centrally symmetrical air outlets are provided on the inner peripheral wall of the drying chamber.

[0015] As an optimized solution, four centrally symmetrical fiber lasers are fixed at the four corners of the upper surface of the drying oven.

[0016] As an optimized solution, a side box plate is fixed at the longitudinal edge of the upper surface of the composite processing table, and a laterally extending guide slide is opened on one side of the upper surface of the side box plate. An I-shaped lifting top seat is slidably fitted in the guide slide.

[0017] As an optimized solution, a rotary drive motor is fixed in the middle of the upper surface of the hoisting top, and the end of the output shaft of the rotary drive motor passes downward through the hoisting top and is fixed with a steering wheel.

[0018] As an optimized solution, a lifting and telescopic cylinder is fixed to the middle of the lower surface of the steering wheel, and a lifting clamping head is fixed to the lower telescopic end of the lifting and telescopic cylinder.

[0019] As an optimized solution, the integrated electrical control box is fixed with support legs at its four corners, and the composite processing table is a square table with an inwardly recessed upper surface. The recessed area is adapted to the installation of each processing unit and reserves space for workpiece processing.

[0020] As an optimized solution, an air inlet box is fixed on the longitudinal outer wall of the side panel, facing the drying box. A compressor fan is installed on the air inlet box, and an electric heating ring is fixed inside the air inlet box. An air inlet pipe communicating with the inside of the drying box is fixed on the longitudinal inner wall of the side panel, and the end of the air inlet pipe is fixedly connected to the drying box.

[0021] As an optimized solution, an inlet replenishment pipe and a waste liquid discharge pipe are fixed on the longitudinal outer wall of the other side of the electrolysis tank. The ends of the inlet replenishment pipe and the waste liquid discharge pipe pass through the side panel and extend to its outer side. The middle section of the inlet replenishment pipe and the waste liquid discharge pipe are respectively equipped with flow regulating valves.

[0022] As an optimized solution, the turning machining unit includes a turning spindle box, which is fixed to the transverse side of the upper surface of the composite machining table, and a main control panel is fixed on the longitudinal outer wall of the turning spindle box.

[0023] As an optimized solution, a turning clamping chuck is rotatably provided on the transverse outer wall of the turning spindle box.

[0024] As an optimized solution, a positioning guide rail is provided directly below the turning chuck. The positioning guide rail extends laterally and its lower end is fixed to the inner bottom surface of the composite machining table. A positioning slide is slidably mounted on the positioning guide rail. A tapered seat is fixed on the transverse side wall of the positioning slide near its upper end. The tapered seat is at the same horizontal height as the turning chuck.

[0025] As an optimized solution, a feed guide is provided on one longitudinal side of the positioning guide rail, and the lower end of the feed guide rail is also fixed on the inner bottom surface of the composite machining table. A feed saddle is slidably mounted on the feed guide rail, and a square tool holder is fixed on the upper end of the feed saddle. Four turning tools distributed symmetrically in a central manner are fixedly installed on the end face of the square tool holder. The turning tools can be replaced independently according to the machining requirements.

[0026] As an optimized solution, the precision milling unit includes a milling machine column, which is fixed to the other side of the upper surface of the composite machining table. A lifting platform is slidably provided on the transverse side wall of the milling machine column. A spindle motor is fixed on the upper surface of the lifting platform. The output shaft end of the spindle motor passes downward through the lifting platform and is fixed with a vertical clamping seat. The lower end of the vertical clamping seat is provided with a detachable clamping structure, which can be adapted to install milling cutters of different models and specifications to meet the diverse needs of precision milling.

[0027] As an optimized solution, a control box is fixed on the transverse outer wall of the milling machine column.

[0028] As an optimized solution, a feed worktable is provided below the lifting platform, and the feed worktable is fixed on the inner bottom surface of the composite processing table.

[0029] As an optimized solution, sliding drive modules are respectively provided on both sides of the guide slide, and the two sliding drive modules are respectively fixed on the upper surface of the side box plate. Two parallel drive screws are rotatably installed between the two sliding drive modules, and the two drive screws are respectively located on both sides of the hoisting top seat.

[0030] As an optimized solution, each of the drive screws is fitted with a drive seat that is threadedly connected to it, and the end of the drive seat is fixed to the longitudinal side wall of the hoisting top seat.

[0031] As an optimized solution, the side panel is a C-shaped panel, with one end fixed to the transverse outer wall of the turning spindle box and the other end fixed to the longitudinal side wall of the milling machine column.

[0032] As an optimized solution, the side panel has connecting ports on both sides for quick replacement of turning tools and milling cutters.

[0033] As an optimized solution, the closed-loop conveying system includes a feeding conveying component, a transfer conveying component, and an unloading conveying component.

[0034] As an optimized solution, the feeding and conveying assembly is positioned directly opposite the turning unit. The feeding and conveying assembly includes two feeding and conveying frames, which are inverted L-shaped frames. The ends of the horizontal portions of the feeding and conveying frames are fixed to the longitudinal outer wall of the composite processing table, and the ends of the vertical portions of the feeding and conveying frames are supported on the ground.

[0035] As an optimized solution, two longitudinally symmetrical feeding conveyor rollers are provided between the two feeding conveyor frames. The two ends of the feeding conveyor rollers are rotatably mounted on the transverse inner wall of the horizontal part of the feeding conveyor frame, and a feeding conveyor belt is sleeved between the two feeding conveyor rollers.

[0036] As an optimized solution, a feeding drive motor that is connected and driven by the feeding conveyor roller is fixed on the transverse outer wall of one of the feeding conveyor frames.

[0037] As an optimized solution, the unloading conveying assembly is positioned opposite the precision milling unit and on the same side as the loading conveying assembly. The unloading conveying assembly includes two unloading conveying frames, which are inverted L-shaped frames. The ends of the horizontal portions of the unloading conveying frames are fixed to the longitudinal outer wall of the composite processing table, and the ends of the vertical portions of the unloading conveying frames are supported on the ground.

[0038] As an optimized solution, two longitudinally symmetrical feeding conveyor rollers are provided between the two feeding conveyor frames. The two ends of the feeding conveyor rollers are rotatably mounted on the transverse inner wall of the horizontal part of the feeding conveyor frame, and a feeding conveyor belt is sleeved between the two feeding conveyor rollers.

[0039] As an optimized solution, a feeding drive motor that is connected and driven by the feeding conveyor roller is fixed on the transverse outer wall of one of the feeding conveyor frames.

[0040] As an optimized solution, the transfer conveying assembly is located between the loading conveying assembly and the unloading conveying assembly. The transfer conveying assembly includes a transfer support platform, which is fixed on the longitudinal outer wall of the integrated electrical control box, and the lower end of the transfer support platform is grounded.

[0041] As an optimized solution, the upper surface of the transfer support platform is provided with symmetrical front multi-axis robotic arms and rear multi-axis robotic arms on both sides.

[0042] As an optimized solution, the end of the front-mounted multi-axis robotic arm is equipped with a front-mounted transfer chuck, which is used to realize the continuous transfer of the turbine guide between the feeding and conveying assembly, the turning unit, and the electrolytic roughing unit.

[0043] As an optimized solution, the rear-mounted multi-axis robotic arm is equipped with a rear-mounted transfer chuck at its end, which enables continuous transfer of the turbine guide between the drying and strengthening unit, the precision milling unit, and the unloading and conveying assembly.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] 1. Integrated composite processing significantly shortens the process flow and production cycle.

[0046] This application integrates four key processes—rough turning, rough electrolytic machining, drying and strengthening, and finish milling—onto a single composite machining table, replacing the traditional machining method of multiple machines operating in stages and requiring multiple clamping and transfer operations. Each machining unit is arranged in an orderly manner along the machining flow, and with the precise transfer of a closed-loop conveyor system, redundant steps such as loading and unloading workpieces between different machines and positioning calibration are eliminated. This effectively shortens the overall process length, reduces the time spent on process connections, and enables continuous machining of the turbine guide vane from blank to finished product, significantly improving production efficiency.

[0047] 2. Combined processing technology, balancing processing efficiency and workpiece surface quality.

[0048] This application employs a combined roughing process of "turning + electrolysis." First, turning rapidly removes most of the excess material from the blank, forming the initial outline of the workpiece. Then, the electrochemical corrosion principle of electrolysis precisely removes any remaining material and burrs from the workpiece surface after turning, achieving initial surface smoothing. Compared to single-stage turning roughing, this combined process retains the high efficiency of turning while avoiding stress damage to the workpiece surface caused by mechanical cutting through electrolysis, solving the problem of balancing efficiency and surface quality in traditional roughing. Subsequent finish milling precisely cuts high-precision areas such as blade profiles and mounting holes, ensuring that the workpiece's dimensional accuracy and geometric tolerances meet the stringent design requirements of aero-engines.

[0049] 3. Laser strengthening and drying are combined to improve the high-temperature fatigue performance of workpieces.

[0050] The drying and strengthening unit in this application employs a combined "hot air drying + laser strengthening" processing method. Hot air is evenly blown out through symmetrically oriented air outlets on the inner wall of the drying chamber, and in conjunction with the workpiece rotation, it achieves rapid drying without dead angles, thoroughly removing residual electrolyte from the workpiece surface and preventing electrolyte residue from adversely affecting subsequent processing or workpiece performance. After drying, four centrally symmetrical fiber lasers are simultaneously activated, using the thermal effect of pulsed lasers to refine the grains on the blade surface, significantly improving the high-temperature fatigue performance of the turbine guide vanes and meeting their requirements for use in the high-temperature, high-pressure operating environment of aero-engines.

[0051] 4. Automated closed-loop conveying and positioning clamping improves machining accuracy and stability.

[0052] The closed-loop conveying system configured in this application consists of a loading conveyor assembly, a transfer conveyor assembly, and an unloading conveyor assembly. Front-mounted and rear-mounted multi-axis robotic arms enable precise gripping and transfer of workpieces between processing units. Combined with the sliding, lifting, and rotating functions of the lifting top mount, it can complete both routine process transfers and emergency transfers and auxiliary clamping, ensuring the continuity of the processing flow. In the turning unit, the positioning slide slides along the positioning guide rail, providing support and positioning for the workpiece end. This, in conjunction with the turning chuck, achieves double fixation of the workpiece, effectively avoiding vibration and displacement problems that occur during high-speed workpiece rotation and improving the dimensional stability of the turning process.

[0053] 5. Modular structural design enhances equipment maintenance convenience and expandability.

[0054] This application adopts a modular layout, with each processing unit independently installed on a composite machining table. An integrated electrical control box centrally controls equipment operation, facilitating troubleshooting and maintenance by operators. The communication ports on the side panels allow for quick replacement of turning and milling cutters, reducing tool change time. The electrolysis tank is equipped with an inlet replenishment pipe, a waste liquid discharge pipe, and a flow regulating valve, which precisely control the inflow and outflow of electrolyte and temperature, ensuring the stability of electrolytic machining. Simultaneously, the modular structural design facilitates subsequent equipment functional expansion, allowing for the addition or replacement of processing units according to processing requirements.

[0055] 6. Reduce the intensity of manual intervention and achieve automated control of the processing.

[0056] The equipment allows for parameter setting and operational control of each processing unit via the main control panel and control box. The loading, transfer, processing, and unloading of workpieces are all automated, significantly reducing manual intervention and minimizing processing defects caused by human error. Simultaneously, the automated processing flow enhances the controllability of the process, ensuring consistency in the processing quality of workpieces within the same batch. Attached Figure Description

[0057] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0058] Figure 1 This is a schematic diagram of the overall external structure of the present invention in the main viewing direction;

[0059] Figure 2This is a schematic diagram of the overall external structure of the present invention from a top-down perspective;

[0060] Figure 3 This is a schematic diagram of the overall external structure of the present invention from the right-side view direction;

[0061] Figure 4 This is a schematic diagram of the overall external structure of the present invention from the left-side view direction;

[0062] Figure 5 This is an isometric schematic diagram of the three-dimensional structure of the present invention;

[0063] Figure 6 For the present invention along Figure 2 A schematic diagram of the internal structure cut along line AA.

[0064] Figure 7 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the middle BB line;

[0065] Figure 8 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the CC line;

[0066] Figure 9 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the DD line in the middle;

[0067] Figure 10 For the present invention along Figure 1 A schematic diagram of the internal structure cut along the EE line;

[0068] Figure 11 For the present invention along Figure 3 A three-dimensional half-section diagram cut along the FF line.

[0069] In the diagram: 1-Integrated electrical control box, 2-Supporting legs, 3-Composite machining table, 4-Turning spindle box, 5-Main control panel, 6-Turning chuck, 7-Positioning guide rail, 8-Positioning slide, 9-Conical seat, 10-Feed guide rail, 11-Feed saddle, 12-Square tool post, 13-Turning tool, 14-Milling machine column, 15-Lifting table, 16-Spindle motor, 17-Vertical mounting base, 18-Control box, 19-Feed worktable, 20-Side panel, 21-Connecting port, 22-Electrolysis box, 23-Pulse power supply, 24-Electrolysis cathode, 25-Electric heating plate, 26-Liquid inlet replenishment pipe, 27-Waste liquid discharge pipe, 28-Flow regulating valve, 29-Drying oven, 30-Air outlet, 31- 32-Air inlet box, 33-Compressor, 34-Electric heating ring, 35-Air inlet pipe, 36-Fiber laser, 37-Guide slide, 38-Lifting top seat, 39-Sliding drive module, 40-Drive screw, 41-Rotation drive motor, 42-Steering wheel, 43-Lifting telescopic cylinder, 44-Lifting clamping head, 45-Feeding conveyor frame, 46-Feeding conveyor roller, 47-Feeding conveyor belt, 48-Feeding drive motor, 49-Unfeeding conveyor frame, 50-Unfeeding conveyor roller, 51-Unfeeding conveyor belt, 52-Unfeeding drive motor, 53-Transfer support platform, 54-Front multi-axis robotic arm, 55-Rear multi-axis robotic arm, 56-Front transfer chuck, 57-Rear transfer chuck. Detailed Implementation

[0070] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0071] like Figures 1 to 11 As shown, the composite machining equipment for aero-engine turbine guide vanes includes an integrated electrical control box 1, which is a square box. Supporting legs 2 are fixed at the four corners of the integrated electrical control box 1. A composite machining table 3 is fixed on the upper surface of the integrated electrical control box 1. The composite machining table 3 is equipped with a turning machining unit, an electrolytic roughing machining unit, a drying and strengthening unit, a fine milling machining unit, and a closed-loop conveying system.

[0072] The composite processing table 3 is a square table with an inwardly recessed center on the upper surface. The recessed area is adapted to the installation of each processing unit and reserves space for workpiece processing.

[0073] The turning machining unit includes a turning spindle box 4, which is fixed on the transverse side of the upper surface of the composite machining table 3. A main control panel 5 is fixed on the longitudinal outer wall of the turning spindle box 4.

[0074] A turning chuck 6 is rotatably mounted on the transverse outer wall of the turning spindle box 4.

[0075] A positioning guide rail 7 is provided directly below the turning chuck 6. The positioning guide rail 7 extends laterally and its lower end is fixed to the inner bottom surface of the composite machining table 3. A positioning slide 8 is slidably mounted on the positioning guide rail 7. A tapered seat 9 is fixed on the transverse side wall of the positioning slide 8 near the upper end. The tapered seat 9 is at the same horizontal height as the turning chuck 6.

[0076] A feed guide 10 is provided on one longitudinal side of the positioning guide 7. The lower end of the feed guide 10 is also fixed on the inner bottom surface of the composite machining table 3. A feed saddle 11 is slidably mounted on the feed guide 10. A square tool holder 12 is fixed on the upper end of the feed saddle 11. Four turning tools 13 are fixedly installed on the end face of the square tool holder in a centrally symmetrical manner. The turning tools 13 can be replaced independently according to the machining requirements.

[0077] The precision milling unit includes a milling machine column 14, which is fixed to the other side of the upper surface of the composite machining table 3. A lifting platform 15 is slidably provided on the transverse side wall of the milling machine column 14. A spindle motor 16 is fixed on the upper surface of the lifting platform 15. The output shaft end of the spindle motor 16 passes downward through the lifting platform 15 and is fixed with a vertical clamping seat 17. The lower end of the vertical clamping seat 17 is provided with a detachable clamping structure, which can be adapted to install milling cutters of different models and specifications to meet the diverse needs of precision milling.

[0078] A control box 18 is fixed on the transverse outer wall of the milling machine column 14.

[0079] Below the lifting platform 15 is a feed table 19, which is fixed on the inner bottom surface of the composite processing table 3.

[0080] A side box plate 20 is fixed at the longitudinal side edge of the upper surface of the composite machining table 3. The side box plate 20 is a C-shaped plate. One end of the side box plate 20 is fixed to the transverse outer wall of the turning spindle box 4, and the other end is fixed to the longitudinal side wall of the milling machine column 14.

[0081] The side panel 20 has connecting ports 21 on both sides for quick replacement of turning tools 13 and milling cutters.

[0082] The electrolytic roughing unit is located between the turning unit and the finishing milling unit and is positioned closer to the turning unit. The electrolytic roughing unit includes an electrolytic box 22, which is a square box with an open top. The lower end of the electrolytic box 22 is fixed on the composite machining table 3.

[0083] A pulse power supply 23 is fixed on one longitudinal outer wall of the electrolysis tank 22, and an electrolytic cathode 24 electrically connected to the pulse power supply 23 is fixed on the longitudinal inner wall of the electrolysis tank 22.

[0084] An electric heating plate 25 is fixed in the middle of the inner bottom surface of the electrolysis tank 22.

[0085] On the other side of the electrolysis tank 22, a liquid inlet pipe 26 and a waste liquid outlet pipe 27 are fixed on the longitudinal outer wall. The ends of the liquid inlet pipe 26 and the waste liquid outlet pipe 27 pass through the side panel 20 and extend to its outer side. The middle sections of the liquid inlet pipe 26 and the waste liquid outlet pipe 27 are respectively equipped with flow regulating valves 28.

[0086] The drying enhancement unit includes a drying chamber 29, which is a double-layered chamber with an inner circle and an outer square shape. Several centrally symmetrical air outlets 30 are provided on the inner peripheral wall of the drying chamber 29.

[0087] An air inlet box 31 is fixed on the longitudinal outer wall of the side panel 20, directly opposite the drying box 29. A compressor fan 32 is installed on the air inlet box 31, and an electric heating ring tube 33 is fixed inside the air inlet box 31. An air inlet pipe 34, which communicates with the drying box 29, is fixed on the longitudinal inner wall of the side panel 20, and the end of the air inlet pipe 34 is fixedly connected to the drying box 29.

[0088] Four centrally symmetrical fiber lasers 35 are fixed at the four corners of the upper surface of the drying oven 29. The fiber lasers 35 can emit pulsed lasers to strengthen the surface of the turbine guide vanes and improve their high-temperature fatigue performance.

[0089] A horizontally extending guide slide 36 is provided on one side of the upper surface of the side panel 20, and an I-shaped hoisting top seat 37 is slidably fitted inside the guide slide 36.

[0090] The guide slide 36 is provided with sliding drive modules 38 on both sides of the transverse direction. The two sliding drive modules 38 are fixed on the upper surface of the side box plate 20 respectively. Two parallel drive screws 39 are rotatably installed between the two sliding drive modules 38. The two drive screws 39 are respectively located on both sides of the hoisting top seat 37 in the longitudinal direction.

[0091] Each drive screw 39 is fitted with a drive seat 40 that is threadedly connected to it, and the end of the drive seat 40 is fixed to the longitudinal side wall of the hoisting top seat 37.

[0092] A rotary drive motor 41 is fixed in the middle of the upper surface of the hoisting top 37. The output shaft of the rotary drive motor 41 passes downward through the hoisting top 37 and is fixed with a steering wheel 42.

[0093] A lifting and telescopic cylinder 43 is fixed in the middle of the lower surface of the steering wheel 42, and a lifting clamping head 44 is fixed in the lower telescopic end of the lifting and telescopic cylinder 43.

[0094] A closed-loop conveying system includes a feeding conveying component, a transfer conveying component, and an unloading conveying component.

[0095] The feeding and conveying assembly is positioned directly opposite the turning unit. The feeding and conveying assembly includes two feeding and conveying frames 45, which are inverted L-shaped frames. The ends of the horizontal portions of the feeding and conveying frames 45 are fixed to the longitudinal outer wall of the composite processing table 3, and the ends of the vertical portions of the feeding and conveying frames 45 are supported on the ground.

[0096] Two longitudinally symmetrical feeding conveyor rollers 46 are provided between the two feeding conveyor frames 45. The two ends of the feeding conveyor rollers 46 are rotatably installed on the transverse inner wall of the horizontal part of the feeding conveyor frame 45. A feeding conveyor belt 47 is sleeved between the two feeding conveyor rollers 46.

[0097] One of the feeding conveyor frames 45 has a feeding drive motor 48 fixed on its transverse outer wall, which is connected and driven by the feeding conveyor roller 46.

[0098] The unloading conveyor assembly is positioned opposite the precision milling unit and on the same side as the loading conveyor assembly. The unloading conveyor assembly includes two unloading conveyor frames 49, which are inverted L-shaped frames. The ends of the horizontal portions of the unloading conveyor frames 49 are fixed to the longitudinal outer wall of the composite processing table 3, and the ends of the vertical portions of the unloading conveyor frames 49 are supported on the ground.

[0099] Two longitudinally symmetrical feeding conveyor rollers 50 are provided between the two feeding conveyor frames 49. The two ends of the feeding conveyor rollers 50 are rotatably installed on the transverse inner wall of the horizontal part of the feeding conveyor frame 49. A feeding conveyor belt 51 is sleeved between the two feeding conveyor rollers 50.

[0100] One of the feeding conveyor frames 49 has a feeding drive motor 52 fixed on its transverse outer wall, which is connected and driven by the feeding conveyor roller 50.

[0101] The transfer conveying assembly is located between the loading conveying assembly and the unloading conveying assembly. The transfer conveying assembly includes a transfer support platform 53, which is fixed on the longitudinal outer wall of the integrated electrical control box 1. The lower end of the transfer support platform 53 is grounded.

[0102] The upper surface of the transfer support platform 53 is provided with a symmetrical front multi-axis robotic arm 54 and a rear multi-axis robotic arm 55 on both sides.

[0103] The front-mounted multi-axis robotic arm 54 is equipped with a front-mounted transfer chuck 56 at its end, which enables the continuous transfer of the turbine guide between the feeding and conveying assembly, the turning unit, and the electrolytic roughing unit.

[0104] The rear-mounted multi-axis robotic arm 55 is equipped with a rear-mounted transfer chuck 57 at its end, which enables the continuous transfer of the turbine guide between the drying and strengthening unit, the precision milling unit, and the unloading and conveying assembly.

[0105] When using this invention:

[0106] Loading stage: The turbine guide blank to be processed is placed on the loading conveyor belt 47 of the loading conveyor assembly. The loading drive motor 48 is started, which drives the loading conveyor roller 46 to rotate, transporting the blank to the processing station of the turning unit. At this time, the front multi-axis robotic arm 54 of the closed-loop conveying system is started. The front transfer chuck 56 accurately grabs the blank and transfers it to the clamping area of ​​the turning clamping chuck 6. The turning clamping chuck 6 clamps the blank, and the positioning slide 8 slides laterally along the positioning guide rail 7 to support and position the end of the blank, completing the positioning and clamping before processing.

[0107] Turning stage: The operator sets the turning parameters through the main control panel 5 on the outer wall of the turning spindle box 4. The turning spindle box 4 drives the turning chuck 6 to rotate the workpiece at high speed. At the same time, the feed saddle 11 slides laterally along the feed guide rail 10, bringing the square tool holder 12 closer to the workpiece. The four centrally symmetrical turning tools 13 on the square tool holder 12 cut in sequentially according to the preset program, performing rough turning on the outer circle, end face, and other parts of the turbine guide, efficiently removing most of the machining allowance of the workpiece and forming the basic contour of the workpiece that meets the requirements of rough machining. After turning is completed, the turning chuck 6 is released, and the front multi-axis robotic arm 54 moves again to transfer the workpiece to the electrolytic rough machining unit.

[0108] In the rough electrolytic machining stage: after the workpiece is transferred to the electrolytic tank 22, the sliding drive module 38 is activated, driving the drive screw 39 to rotate. The drive seat 40 drives the lifting top seat 37 to slide laterally along the guide slide 36, moving the lifting top seat 37 directly above the workpiece. The lifting telescopic cylinder 43 is then extended, and the workpiece is clamped using the lifting clamping head 44. The rotation drive motor 41 is activated, driving the steering wheel 42 to rotate, thereby causing the entire workpiece to rotate around the axis. The connecting ports 21 on both sides of the side panel 20 facilitate quick replacement of the turning tool 13 and the milling cutter by the operator, further improving machining efficiency. During electrolytic machining, the electrolyte replenishment pipe 26 continuously replenishes fresh electrolyte into the electrolytic tank 22. The pulse power supply 23 is activated, supplying power to the electrolytic cathode 24. The electrolyte in the electrolytic tank 22 maintains a constant machining temperature under the action of the electric heating plate 25. The workpiece acts as the anode, forming a circuit with the pulse power supply 23. Utilizing the principle of electrochemical corrosion, residual material and burrs on the workpiece surface after turning are removed, achieving preliminary surface smoothing. After the electrolytic rough machining is completed, the waste electrolyte is simultaneously discharged through the waste liquid discharge pipe 27. The flow regulating valve 28 precisely controls the inflow and outflow of the electrolyte according to the processing requirements, ensuring the stability of the electrolytic machining process.

[0109] After electrolytic processing is completed, the lifting telescopic cylinder 43 is first shortened, and the hoisting top seat 37 is controlled to slide laterally along the guide slide 36. Then, the lifting telescopic cylinder 43 is controlled to extend, and the workpiece is transferred to the drying and strengthening unit.

[0110] Drying and Strengthening Stage: The workpiece enters the drying chamber 29. The compressed air fan 32 starts, delivering air to the air inlet box 31. After being heated by the electric heating ring tube 33, the hot air enters the drying chamber 29 through the air inlet pipe 34 and is evenly blown out from multiple centrally symmetrical air outlets 30 on the inner peripheral wall of the drying chamber 29. This ensures rapid, thorough drying of any residual electrolyte adhering to the workpiece surface, leaving no dead angles. During the drying process, the drive motor 41 can be restarted to rotate the workpiece, dislodging electrolyte from drying dead angles and increasing the contact area between the hot air and the workpiece, thereby improving drying efficiency. After drying, the lifting telescopic cylinder 43 shortens, lifting the workpiece. Simultaneously, the four fiber lasers 35 on the upper surface of the drying chamber 29 activate, emitting pulsed laser light to perform laser strengthening treatment on the surface of the turbine guide vanes. The thermal effect of the pulsed laser remelts and rapidly cools the vane surface, refining the grain structure and forming a dense strengthening layer, thus improving its high-temperature fatigue performance. After the reinforcement process is completed, the lifting clamping head 44 releases its grip on the workpiece, and the rear multi-axis robotic arm 55 starts to transfer the workpiece to the precision milling unit through the rear transfer chuck 57.

[0111] In the precision milling stage: the workpiece is transferred to the feed table 19 for positioning and clamping. The operator sets the precision milling parameters through the control box 18 on the outer wall of the milling machine column 14. The lifting table 15 slides along the transverse side wall of the milling machine column 14 to adjust the height position of the spindle motor 16. The spindle motor 16 starts, driving the milling cutter on the vertical clamping seat 17 to rotate at high speed. The feed table 19 performs servo feed motion along the preset motion trajectory, causing the workpiece and the milling cutter to form a relatively precise displacement. This allows for precision milling of high-precision parts such as the blade profile and mounting holes of the turbine guide, ensuring that the dimensional accuracy and geometric tolerances of the workpiece meet the design requirements.

[0112] Material unloading stage: After precision milling, the rear multi-axis robotic arm 55 transfers the finished workpiece between the two unloading conveyor rollers 50 of the unloading conveyor assembly. The unloading drive motor 52 starts, driving the unloading conveyor rollers 50 to rotate and transport the finished workpiece to the designated unloading area, completing the integrated composite processing flow of the turbine guide from blank to finished product.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A composite processing equipment for aero-engine turbine guide vanes, characterized in that: The device includes an integrated electrical control box, which is a square box. A composite processing table is fixed on the upper surface of the integrated electrical control box. A turning processing unit and a fine milling processing unit are respectively provided at the two ends of the horizontal direction of the composite processing table. An electrolytic roughing processing unit and a drying and strengthening unit are arranged in sequence between the turning processing unit and the fine milling processing unit. A closed-loop conveying system is provided between each processing unit. The electrolytic roughing unit includes an electrolytic box, which is a square box with an open top. The lower end of the electrolytic box is fixed to the middle of the upper surface of the composite processing table. A pulse power supply is fixed on one longitudinal outer wall of the electrolysis tank, and an electrolytic cathode electrically connected to the pulse power supply is fixed on the longitudinal inner wall of the electrolysis tank. An electric heating plate is fixed in the middle of the inner bottom surface of the electrolysis tank; The drying enhancement unit includes a drying chamber, which is a double-layered heat-insulated box with a circular internal cavity and a square external shell. Several centrally symmetrical air outlets are provided on the inner peripheral wall of the drying chamber. Four centrally symmetrical fiber lasers are fixed at the four corners of the upper surface of the drying oven. A side box plate is fixed at the longitudinal edge of the upper surface of the composite processing table. A guide slide opening extending laterally is provided on one side of the upper surface of the side box plate. An I-shaped lifting top seat is slidably fitted in the guide slide opening. A rotary drive motor is fixed in the middle of the upper surface of the hoisting top seat, and the end of the output shaft of the rotary drive motor passes downward through the hoisting top seat and is fixed with a steering wheel; A lifting and telescopic cylinder is fixed in the middle of the lower surface of the steering wheel, and a lifting clamping head is fixed in the lower telescopic end of the lifting and telescopic cylinder. An air inlet box is fixed on the longitudinal outer wall of the side panel, facing the drying box. A compressor fan is installed on the air inlet box, and an electric heating ring is fixed inside the air inlet box. An air inlet pipe communicating with the drying box is fixed on the longitudinal inner wall of the side panel, and the end of the air inlet pipe is fixedly connected to the drying box. The closed-loop conveying system includes a feeding conveying component, a transfer conveying component, and a discharging conveying component; The loading conveyor assembly is positioned opposite the turning unit, the unloading conveyor assembly is positioned opposite the milling unit and on the same side as the loading conveyor assembly, and the transfer conveyor assembly is positioned between the loading conveyor assembly and the unloading conveyor assembly; The transfer and conveying assembly includes a transfer support platform, which is fixed on the longitudinal outer wall of the integrated electrical control box, and the lower end of the transfer support platform is grounded. The upper surface of the transfer support platform is provided with symmetrical front multi-axis robotic arms and rear multi-axis robotic arms on both sides. The front-mounted multi-axis robotic arm is equipped with a front-mounted transfer chuck at its end, which enables the continuous transfer of the turbine guide between the feeding and conveying assembly, the turning unit, and the electrolytic roughing unit. The rear-mounted multi-axis robotic arm is equipped with a rear-mounted transfer chuck at its end, which enables continuous transfer of the turbine guide between the drying and strengthening unit, the precision milling unit, and the unloading and conveying assembly.

2. The composite processing equipment for aero-engine turbine guide vanes according to claim 1, characterized in that: The integrated electrical control box is fixed with support legs at its four corners. The composite processing table is a square table with a recessed center on its upper surface. The recessed area is adapted to the installation of each processing unit and provides processing space for the workpiece. On the other side of the electrolysis tank, a liquid inlet pipe and a waste liquid outlet pipe are fixed respectively. The ends of the liquid inlet pipe and the waste liquid outlet pipe pass through the side panel and extend to its outer side. The middle section of the liquid inlet pipe and the waste liquid outlet pipe are respectively equipped with flow regulating valves.

3. The composite processing equipment for aero-engine turbine guide vanes according to claim 2, characterized in that: The turning machining unit includes a turning spindle box, which is fixed to the transverse side of the upper surface of the composite machining table, and a main control panel is fixed on the longitudinal outer wall of the turning spindle box. A turning chuck is rotatably mounted on the transverse outer wall of the turning spindle box; A positioning guide rail is provided directly below the turning chuck. The positioning guide rail extends laterally and its lower end is fixed to the inner bottom surface of the composite machining table. A positioning slide is slidably mounted on the positioning guide rail. A tapered seat is fixed on the transverse side wall of the positioning slide near its upper end. The tapered seat is at the same horizontal height as the turning chuck. The positioning guide rail has a feed guide rail on its longitudinal side. The lower end of the feed guide rail is also fixed to the inner bottom surface of the composite machining table. A feed saddle is slidably mounted on the feed guide rail. A square tool holder is fixed to the upper end of the feed saddle. Four turning tools are fixedly mounted on the end face of the square tool holder in a centrally symmetrical distribution. The turning tools can be replaced independently according to the machining requirements.

4. The composite processing equipment for aero-engine turbine guide vanes according to claim 3, characterized in that: The precision milling unit includes a milling machine column, which is fixed to the other side of the upper surface of the composite machining table. A lifting platform is slidably provided on the transverse side wall of the milling machine column. A spindle motor is fixed on the upper surface of the lifting platform. The output shaft end of the spindle motor passes downward through the lifting platform and is fixed with a vertical clamping seat. The lower end of the vertical clamping seat is provided with a detachable clamping structure, which can be adapted to install milling cutters of different models and specifications to meet the diverse needs of precision milling. A control box is fixed on the transverse outer wall of the milling machine column; A feed worktable is provided below the lifting platform, and the feed worktable is fixed on the inner bottom surface of the composite processing table.

5. The composite processing equipment for aero-engine turbine guide vanes according to claim 4, characterized in that: The guide slide is provided with sliding drive modules on both sides of the lateral side. The two sliding drive modules are fixed on the upper surface of the side box plate. Two parallel drive screws are rotatably installed between the two sliding drive modules. The two drive screws are respectively located on both sides of the hoisting top seat in the longitudinal direction. Each of the drive screws is fitted with a drive seat that is threadedly connected to it, and the end of the drive seat is fixed to the longitudinal side wall of the hoisting top seat.

6. The composite processing equipment for aero-engine turbine guide vanes according to claim 5, characterized in that: The side panel is a C-shaped panel, with one end fixed to the transverse outer wall of the turning spindle box and the other end fixed to the longitudinal side wall of the milling machine column. The side panel has connecting openings on both sides for quick replacement of turning tools and milling cutters.

7. The composite processing equipment for aero-engine turbine guide vanes according to claim 6, characterized in that: The feeding and conveying assembly includes two feeding and conveying frames, which are inverted L-shaped frames. The end of the horizontal part of the feeding and conveying frame is fixed to the longitudinal outer wall of the composite processing table, and the end of the vertical part of the feeding and conveying frame is supported on the ground. Two longitudinally symmetrical feeding conveyor rollers are provided between the two feeding conveyor frames. The two ends of the feeding conveyor rollers are rotatably mounted on the transverse inner wall of the horizontal part of the feeding conveyor frame. A feeding conveyor belt is sleeved between the two feeding conveyor rollers. One of the feeding conveyor frames has a feeding drive motor fixed on its transverse outer wall, which is connected and drives the feeding conveyor roller.

8. The composite processing equipment for aero-engine turbine guide vanes according to claim 7, characterized in that: The unloading conveying assembly includes two unloading conveying frames, which are inverted L-shaped frames. The end of the horizontal part of the unloading conveying frame is fixed to the longitudinal outer wall of the composite processing table, and the end of the vertical part of the unloading conveying frame is supported on the ground. Two longitudinally symmetrical feeding conveyor rollers are provided between the two feeding conveyor frames. The two ends of the feeding conveyor rollers are rotatably mounted on the transverse inner wall of the horizontal part of the feeding conveyor frame. A feeding conveyor belt is sleeved between the two feeding conveyor rollers. One of the feeding conveyor frames has a feeding drive motor fixed on its transverse outer wall, which is connected and drives the feeding conveyor roller.

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