Electrochemical machining tooling for a vortex finder vane and method thereof

Abstract

The application discloses a kind of vortex blade electrolytic processing frock, including fixed component, flow guide component, backflow component, processing cathode and feed assembly, fixed component fixes vortex, flow guide component is arranged on fixed component, backflow component is slidably connected with flow guide component and is enclosed with vortex to form processing gap, processing cathode is arranged on backflow component, feed assembly and backflow component are connected, flow guide component includes the guide piece that is arranged on fixed component and the liquid inlet piece that covers on guide piece, guide piece is concavely provided with the rotation guide groove that is arranged in spiral shape, the rotation direction of rotation guide groove and the rotation direction of vortex blade are same, liquid inlet piece, guide piece and fixed component are enclosed to form liquid inlet cavity, rotation guide groove and fixed component are enclosed to form flow guide cavity, flow guide cavity is respectively communicated with liquid inlet cavity and processing gap, backflow channel is opened in backflow component and is communicated with processing gap.In addition, the application also discloses a kind of vortex blade electrolytic processing method.

Description

Technical Field

[0001] This invention relates to the field of electrolytic machining technology for eddy current turbine blades, and more particularly, to a fixture for electrolytic machining of eddy current turbine blades. Furthermore, this invention also relates to a method for electrolytic machining of eddy current turbine blades using the aforementioned fixture. Background Technology

[0002] Turbulent turbines are crucial components of aero-engines, generating turbulence and creating low-speed vortex regions to ensure stable and complete fuel combustion. Currently, turbulent turbine structures are evolving from single-sided blades to double-sided blades, and many utilize high-strength, difficult-to-machine materials. This leads to blade deformation during CNC milling, resulting in low machining efficiency and high tool costs, posing a significant challenge to traditional manufacturing techniques. Electrolytic machining, based on the principle of electrochemical anodic dissolution, removes material without being affected by material cutting properties. It is a non-contact machining process, generates no cutting stress, and produces no wear on the cathode tool. It offers high machining efficiency and good surface finish, making it ideal for machining turbulent turbine blades. Therefore, it is gradually replacing CNC milling as the mainstream machining technology for turbulent turbine blades.

[0003] For example, Chinese invention patent application CN116329681A discloses an electrochemical machining tool and method for integral forming of double-sided array blades of a vortex generator. The tool cathodes on both sides are simultaneously fed continuously towards the workpiece by the spindle of the machining bed, allowing the double-sided array blades to be processed simultaneously. The machining tool includes a cathode clamping block, a tool cathode, a sealing device, and a support base. Multiple electrolyte input channels are provided on both sides of the support base. The liquid in the electrolyte input channels flows into the machining area after being consolidated by the flow-blocking cavity of the sealing device. Subsequently, it flows through the plastic insulation device built into the tool cathode and then into the confluence area within the cathode clamping block, finally exiting through the electrolyte output channel. This invention, through double-sided multi-feature integral forming electrochemical machining technology, can improve machining efficiency and accuracy; the electrolyte flow channel with a reverse flow field design can effectively improve the uniformity of the flow field.

[0004] However, the electrolytic machining technology for eddy current turbine blades has high requirements for the flow field. If the flow field design is unreasonable, it is very easy to cause insufficient electrolyte, leading to short circuits, burns on parts and cathodes. In the aforementioned electrolytic machining tools and methods, the electrolyte flows in from the inlet, through the machining gap, and then out from the outlet. During the process of the electrolyte flowing into the machining gap from the inlet, it diffuses in all directions and then flows into the machining gap from all sides. The flow direction of the electrolyte is chaotic and unstable, resulting in an extremely unstable flow field in the initial part of the machining gap. This makes it prone to short circuits and low machining stability. Summary of the Invention

[0005] This invention provides a tooling and method for electrolytic machining of eddy current turbine blades, in order to solve the technical problems of unreasonable flow field design, easy occurrence of machining short circuits, and low machining stability in existing electrolytic machining technology for eddy current turbine blades.

[0006] According to one aspect of the present invention, an electrolytic machining fixture for eddy current turbine blades is provided, comprising a fixing assembly, a guiding assembly, a recirculation assembly, a machining cathode, and a feed assembly. The fixing assembly is used to fix the eddy current turbine and connect to the positive terminal of a machine tool power supply. The guiding assembly is disposed on the fixing assembly and is used to avoid the eddy current turbine along its axial direction. The recirculation assembly is slidably engaged with the guiding assembly along the axial direction of the eddy current turbine and is disposed corresponding to the axial direction of the eddy current turbine to form a machining gap with it. The machining cathode is disposed on the axial end of the recirculation assembly facing the eddy current turbine and is used to connect to the negative terminal of the machine tool power supply. The feed assembly and the recirculation assembly are connected and used to drive the recirculation. The component is fed along the axial direction of the vortex generator. The flow guiding component includes a guide member arranged on the fixed component and sleeved outside the return component, and a liquid inlet member covering the guide member and sleeved outside the return component. The end of the guide member facing the fixed component is recessed with a spirally arranged rotating guide groove. The rotation direction of the rotating guide groove is the same as the rotation direction of the vortex generator blades. The liquid inlet member, the guide member, and the fixed component enclose to form a liquid inlet cavity for electrolyte introduction. The rotating guide groove and the fixed component enclose to form a flow guiding cavity. The flow guiding cavity is connected to the liquid inlet cavity and the processing gap, respectively. The return component has a return channel connected to the processing gap for electrolyte discharge.

[0007] As a further improvement to the above technical solution:

[0008] Furthermore, the fixing assembly includes a fixing plate arranged vertically, a square positioning cavity opened on the fixing plate for accommodating the vortex, an angular positioning block arranged on the inner wall of the square positioning cavity for interlocking with the vortex to perform angular positioning of the vortex, and a fixing screw threaded to the fixing plate for tightening and fixing the vortex radially.

[0009] Furthermore, the reflux assembly includes a reflux member connected to the machining cathode, which is arranged axially with the eddy current generator to form a machining gap with the eddy current generator, and a liquid outlet member connected to the reflux member and the feed assembly respectively. The reflux member has a reflux cavity communicating with the machining gap. The liquid outlet member and the reflux member enclose a liquid outlet cavity communicating with the reflux cavity. The liquid outlet member has a liquid outlet communicating with the liquid outlet cavity in a vertical direction.

[0010] Furthermore, the inlet component has an inlet port for electrolyte entry, which is connected to the inlet chamber and arranged opposite to the guide component, along the axial direction of the vortex generator.

[0011] Furthermore, the liquid inlet is arranged in a ring shape, with the inner ring of the liquid inlet connected to the guide and the outer ring of the liquid inlet connected to the fixing assembly.

[0012] Furthermore, a first sealing groove is provided on the inner ring of the liquid inlet, and a first sealing ring is provided in the first sealing groove. A second sealing groove is provided on the outer end of the liquid inlet, and a second sealing ring is provided in the second sealing groove.

[0013] Furthermore, a third sealing groove is provided on the outer wall of the reflux assembly, and a third sealing ring is provided in the third sealing groove.

[0014] Furthermore, there are two flow guiding components, which are respectively arranged on opposite sides of the fixed component. The flow guiding component, the return flow component, the processing cathode and the feed component are arranged in a corresponding manner.

[0015] Furthermore, the electrolytic machining fixture for eddy current blades also includes an inlet pipe communicating with the inlet chamber; and / or the electrolytic machining fixture for eddy current blades also includes an outlet pipe communicating with the return channel.

[0016] According to another aspect of the present invention, an electrolytic machining method for eddy current blades is also provided, which employs the above-mentioned electrolytic machining fixture for eddy current blades, specifically including the following steps: S1, installing the fixing assembly on the machine tool worktable, first assembling the guide component and the liquid inlet component to form a guide assembly, and then installing the guide assembly on the fixing assembly; S2, installing the eddy current blade on the fixing assembly, then arranging the return assembly on the feed assembly, and finally arranging the machining cathode on the return assembly; S3, connecting the liquid inlet component to the liquid inlet pipe, connecting the return assembly to the liquid outlet pipe, connecting the fixing assembly to the positive terminal of the machine tool power supply to make the eddy current blade positively charged, connecting the machining cathode to the negative terminal of the machine tool power supply to make it negatively charged, setting the machining parameters, introducing electrolyte through the liquid inlet pipe, and operating the feed assembly to perform electrolytic machining on the eddy current blade.

[0017] The present invention has the following beneficial effects:

[0018] The electrolytic machining fixture for eddy current turbine blades of the present invention uses a fixing component to fix the eddy current turbine and connect it to the positive terminal of a machine tool power supply, thus making the eddy current turbine positively charged. A machining cathode connects to the negative terminal of the machine tool power supply, making the eddy current turbine negatively charged. A guide component is arranged on the fixing component and avoids the turbine along the axial direction of the eddy current turbine, providing assembly and machining space for the return flow component. A feed component drives the return flow component to slide relative to the guide component, feeding it along the axial direction of the eddy current turbine to achieve electrolytic machining. During the electrolytic machining process, the liquid inlet and guide components in the guide component, together with the fixing component, form a liquid inlet cavity, allowing the electrolyte to enter first. Then, the rotating guide groove on the guide component, together with the fixing component, forms a guide flow cavity, allowing the electrolyte to enter the guide flow cavity. Under the guidance of the rotating guide groove, the electrolyte flows through the guide flow cavity into the machining gap. As the electrolyte flows through the guide flow cavity, the flow channel area gradually decreases, forming a converging flow. This design allows the electrolyte to smoothly enter the machining gap, improving the stability of electrolytic machining and significantly reducing abrupt changes in the flow field. Simultaneously, because the rotation direction of the rotating guide groove is the same as that of the vortex blades, the electrolyte can directly flush the blade base and back of the vortex blades, ensuring sufficient electrolyte supply and flow to these areas, avoiding electrolyte shortages. This also ensures smooth discharge of electrolytic machining products and a more stable machining process. Finally, the electrolyte is discharged through the reflux channel in the reflux assembly, achieving a closed-loop flow. In this design, during electrolytic machining, the electrolyte smoothly enters the machining gap under the guidance of the inlet and guide chambers. Compared to existing technologies, the gradually changing, regular flow field in the guide chamber is more stable. As the electrolyte enters the machining gap under the guidance of the guide chamber, the flow field within the machining gap is also correspondingly stable, thus avoiding machining short circuits, improving machining stability, and demonstrating strong practicality, making it suitable for widespread promotion and application.

[0019] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the electrolytic machining tooling for eddy current generator blades according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A partial structural schematic diagram of the electrolytic machining fixture for eddy current generator blades is shown.

[0023] Figure 3 This is a schematic diagram of the structure of the fixing component in the electrolytic machining tooling for eddy current generator blades according to a preferred embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the guide component in the electrolytic machining tooling for eddy current generator blades according to a preferred embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the guide component in the electrolytic machining tooling for eddy current turbine blades according to a preferred embodiment of the present invention.

[0026] Legend:

[0027] 100. Fixing assembly; 110. Fixing plate; 120. Square positioning cavity; 130. Angular positioning block; 140. Fixing screw; 200. Flow guiding assembly; 210. Guide component; 211. Rotary guide groove; 220. Liquid inlet component; 221. Liquid inlet; 230. First sealing ring; 240. Second sealing ring; 300. Reflux assembly; 310. Reflux component; 320. Liquid outlet component; 321. Liquid outlet; 400. Machining cathode; 500. Feed assembly. Detailed Implementation

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0029] Figure 1 This is a schematic diagram of the structure of the electrolytic machining tooling for eddy current generator blades according to a preferred embodiment of the present invention; Figure 2 yes Figure 1 A partial structural schematic diagram of the electrolytic machining fixture for eddy current generator blades is shown. Figure 3 This is a schematic diagram of the structure of the fixing component in the electrolytic machining tooling for eddy current generator blades according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the guide component in the electrolytic machining tooling for eddy current generator blades according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the guide component in the electrolytic machining tooling for eddy current turbine blades according to a preferred embodiment of the present invention.

[0030] like Figures 1-5As shown, the electrolytic machining fixture for eddy current turbine blades in this embodiment includes a fixing component 100, a flow guiding component 200, a return component 300, a machining cathode 400, and a feed component 500. The fixing component 100 is used to fix the eddy current turbine and connect to the positive terminal of the machine tool power supply. The flow guiding component 200 is arranged on the fixing component 100 and is used to avoid the eddy current turbine along the axial direction of the eddy current turbine. The return component 300 slides with the flow guiding component 200 along the axial direction of the eddy current turbine and is arranged to correspond to the axial direction of the eddy current turbine to form a machining gap with the eddy current turbine. The machining cathode 400 is arranged on the axial end of the return component 300 facing the eddy current turbine and is used to connect to the negative terminal of the machine tool power supply. The feed component 500 is connected to the return component 300 and is used to drive the return component 300 along the eddy current turbine. The axial feed and the flow guiding assembly 200 include a guide member 210 disposed on the fixed assembly 100 and sleeved on the return assembly 300, and a liquid inlet member 220 covering the guide member 210 and sleeved on the return assembly 300. The end of the guide member 210 facing the fixed assembly 100 is recessed with a spirally arranged rotating guide groove 211. The rotation direction of the rotating guide groove 211 is the same as the rotation direction of the vortex blade. The liquid inlet member 220, the guide member 210 and the fixed assembly 100 enclose to form a liquid inlet cavity for electrolyte introduction. The rotating guide groove 211 and the fixed assembly 100 enclose to form a flow guiding cavity. The flow guiding cavity is connected to the liquid inlet cavity and the processing gap respectively. The return assembly 300 has a return channel connected to the processing gap for electrolyte discharge.Specifically, the electrolytic machining fixture for eddy current turbine blades of the present invention uses a fixing component 100 to fix the eddy current turbine and connect it to the positive terminal of the machine tool power supply, making the eddy current turbine positively charged. A machining cathode 400 connects to the negative terminal of the machine tool power supply, making it negatively charged. A guide component is arranged on the fixing component 100 and avoids the turbine along the axial direction of the eddy current turbine, providing assembly and machining space for the return assembly 300. The feed component 500 drives the return assembly 300 to slide relative to the guide component 200, feeding it along the axial direction of the eddy current turbine to achieve electrolytic machining of the eddy current turbine. During the electrolytic machining process, the liquid inlet component 220 and the guide component 210 in the guide component form a liquid inlet cavity with the fixing component 100, allowing the electrolyte to enter the liquid inlet cavity first. Then, the rotating guide groove 211 on the guide component 210 forms a guide cavity with the fixing component 100, allowing the electrolyte to enter the guide cavity. Under the guidance of the rotating guide groove 211, the electrolyte flows from the guide cavity into the machining gap. The flow area of ​​the electrolyte gradually decreases, forming a converging flow channel, which allows the electrolyte to smoothly enter the machining gap, improving the stability of electrolytic machining and greatly reducing abrupt changes in the flow field. Simultaneously, since the rotation direction of the rotating guide groove 211 is the same as that of the vortex blades, the electrolyte can directly flush the blade base and back of the vortex blades, ensuring sufficient electrolyte supply and flow to these areas, avoiding insufficient electrolyte levels. Electrolytic machining products are discharged smoothly, making the machining process more stable. Finally, the electrolyte is discharged through the return channel in the return assembly 300, achieving closed-loop flow. In this scheme, during electrolytic machining, the electrolyte smoothly enters the machining gap under the guidance of the inlet chamber and the guide chamber. Compared to existing technologies, the gradually changing, regular flow field in the guide chamber is stable. With the electrolyte entering the machining gap under the guidance of the guide chamber, the flow field within the machining gap is also correspondingly stable, thus avoiding machining short circuits, improving machining stability, and demonstrating strong practicality, making it suitable for widespread promotion and application. Optionally, the feed assembly 500 is the spindle of the machine tool. Optionally, the guide member 210 is arranged in a ring shape, and the spiral guide groove includes multiple curved grooves spaced apart along the axial direction of the guide member 210. From the outer diameter to the inner diameter of the guide member 210, the cross-sectional area of ​​the curved grooves gradually decreases, thereby gradually reducing the flow channel area of ​​the electrolyte and forming a converging flow channel. It should be understood that the fixing assembly 100 is made of conductive material. Optionally, the flow guiding assembly 200 and the feed assembly 500 are made of conductive material, and the feed assembly 500 is connected to the negative terminal of the machine tool power supply so that the machining cathode 400 is connected to the negative terminal of the machine tool electrolysis electrode.

[0031] like Figure 3As shown, in this embodiment, the fixing assembly 100 includes a vertically arranged fixing plate 110, a square positioning cavity 120 formed on the fixing plate 110 for accommodating the vortex, an angular positioning block 130 arranged on the inner wall of the square positioning cavity 120 for interlocking with the vortex to angularly position the vortex, and a fixing screw 140 threadedly connected to the fixing plate 110 for radially tightening and fixing the vortex. Specifically, the fixing plate 110 is vertically arranged on the machine tool worktable, then the vortex is placed in the square positioning cavity 120, and the angular positioning block 130 is interlocked with the vortex. Then, the fixing screw 140 is rotated relative to the fixing plate 110 to radially tighten and fix the vortex.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the reflux assembly 300 includes a reflux member 310 connected to the processing cathode 400 and arranged axially with the eddy current generator to form a processing gap, and an outlet member 320 connected to the reflux member 310 and the feed assembly 500 respectively. The reflux member 310 has a reflux cavity communicating with the processing gap. The outlet member 320 and the reflux member 310 enclose an outlet cavity communicating with the reflux cavity. The outlet member 320 has a vertical outlet 321 communicating with the outlet cavity. Specifically, the electrolyte flows through the processing gap into the reflux cavity of the reflux member 310, then flows into the outlet cavity formed by the outlet member 320 and the reflux member 310 communicating with the reflux cavity, and finally exits from the outlet 321.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, the inlet 220 has an inlet 221 for electrolyte entry, which communicates with the inlet cavity and is arranged opposite to the guide 210, along the axial direction of the vortex generator. Specifically, the electrolyte enters the inlet cavity through the inlet 221 and impacts the guide 210 to accumulate a large amount of electrolyte in the inlet cavity. Then, guided by the inlet cavity, the large amount of electrolyte enters the guide cavity, and smoothly enters the machining gap under the action of the guide cavity. This prevents a small amount of electrolyte from flowing directly through the inlet cavity, guide cavity, and machining gap, thus preventing the formation of a converging flow channel within the guide cavity. It should be understood that when the inlet 221 is opened along the radial direction of the vortex generator, a converging flow channel cannot be formed.

[0034] like Figure 1 and Figure 2As shown, in this embodiment, the liquid inlet 220 is arranged in a ring shape. The inner ring of the liquid inlet 220 is connected to the guide 210, and the outer ring of the liquid inlet 220 is connected to the fixing assembly 100. Specifically, by connecting the inner ring of the liquid inlet 220 to the guide 210 and the outer ring of the liquid inlet 220 to the fixing assembly 100, the liquid inlet 220, the guide 210, and the fixing assembly 100 form an inlet cavity that guides the electrolyte to move first vertically in the forward direction, then horizontally, and finally vertically in the reverse direction to the flow guide cavity.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, a first sealing groove is formed on the inner ring of the liquid inlet 220, and a first sealing ring 230 is disposed in the first sealing groove. A second sealing groove is formed on the outer end of the liquid inlet 220, and a second sealing ring 240 is disposed in the second sealing groove. Specifically, by providing the first sealing ring 230 in the first sealing groove, the sealing performance between the liquid inlet 220 and the guide member 210 is ensured. By providing the second sealing ring 240 in the second sealing groove, the sealing performance between the liquid inlet and the fixing assembly 100 is ensured, thereby ensuring the sealing performance of the liquid inlet cavity.

[0036] like Figure 1 As shown, in this embodiment, a third sealing groove is provided on the outer wall of the reflux assembly 300, and a third sealing ring is provided in the third sealing groove. Specifically, by providing a third sealing ring in the third sealing groove, the sealing between the reflux assembly 300 and the flow guiding assembly 200 is ensured, preventing electrolyte leakage.

[0037] like Figure 1 As shown, in this embodiment, two flow guiding components 200 are provided and respectively arranged on opposite sides of the fixed component 100. The flow guiding component 200, the return flow component 300, the processing cathode 400, and the feed component 500 are arranged in a one-to-one correspondence. Specifically, by arranging one flow guiding component 200 on each opposite side of the fixed component 100, and ensuring that the flow guiding component 200, the return flow component 300, the processing cathode 400, and the feed component 500 are arranged in a one-to-one correspondence, simultaneous processing of the blades on both sides of the vortex generator can be achieved, greatly improving processing efficiency.

[0038] In this embodiment, the electrolytic machining fixture for the eddy current generator blades also includes a liquid inlet pipe communicating with the liquid inlet chamber. Specifically, the electrolyte is introduced into the liquid inlet chamber through the liquid inlet pipe.

[0039] In this embodiment, the electrolytic machining fixture for the eddy current generator blades also includes a liquid outlet pipe connected to the return channel. Specifically, the electrolyte is discharged from the return channel through the liquid outlet pipe.

[0040] The electrolytic machining method for eddy current blades in this embodiment uses the aforementioned electrolytic machining fixture for eddy current blades, and specifically includes the following steps: S1, the fixing component 100 is installed on the machine tool worktable, the guide component 210 and the liquid inlet component 220 are assembled to form a guide component, and then the guide component is installed on the fixing component 100; S2, the eddy current is installed on the fixing component 100, the return component 300 is arranged on the feed component 500, and finally the machining cathode 400 is arranged on the return component 300; S3, the liquid inlet component 220 is connected to the liquid inlet pipe, the return component 300 is connected to the liquid outlet pipe, the fixing component 100 is connected to the positive terminal of the machine tool power supply to make the eddy current positively charged, the machining cathode 400 is connected to the negative terminal of the machine tool power supply to be negatively charged, the machining parameters are set, the electrolyte is introduced through the liquid inlet pipe, and the feed component 500 works to perform electrolytic machining on the eddy current. Specifically, by using the aforementioned eddy current blade electrolytic machining fixture in the eddy current blade electrolytic machining method, the flow field of the electrolyte is stabilized and the electrolyte supply is sufficient during motor machining, thus avoiding short circuits and improving machining stability.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tooling for electrolytic machining of eddy current generator blades, characterized in that, The assembly includes a fixed component (100), a flow guiding component (200), a return component (300), a machining cathode (400), and a feed component (500). The fixed component (100) is used to fix the eddy current generator and connect to the positive terminal of the machine tool power supply. The flow guiding component (200) is arranged on the fixed component (100) and is used to avoid the eddy current generator along the axial direction of the eddy current generator. The return component (300) slides with the flow guiding component (200) along the axial direction of the eddy current generator and is arranged to correspond to the axial direction of the eddy current generator to form a machining gap with the eddy current generator. The machining cathode (400) is arranged on the axial end of the return component (300) facing the eddy current generator and is used to connect to the negative terminal of the machine tool power supply. The feed component (500) is connected to the return component (300) and is used to drive the return component (300) to feed along the axial direction of the eddy current generator. The flow guiding component (200) is connected to the return component (300). 0) Includes a guide (210) disposed on the fixed assembly (100) and sleeved outside the return assembly (300) and an inlet (220) covering the guide (210) and sleeved outside the return assembly (300). The guide (210) has a spirally arranged rotating guide groove (211) recessed at the end facing the fixed assembly (100). The rotation direction of the rotating guide groove (211) is the same as the rotation direction of the vortex blade. The inlet (220), the guide (210) and the fixed assembly (100) enclose to form an inlet cavity for introducing electrolyte. The rotating guide groove (211) and the fixed assembly (100) enclose to form a guide cavity. The guide cavity is connected to the inlet cavity and the processing gap respectively. The return assembly (300) has a return channel for electrolyte discharge connected to the processing gap. The reflux assembly (300) includes a reflux member (310) connected to the machining cathode (400) and arranged axially with the vortex generator to form a machining gap with the vortex generator, and an outlet member (320) connected to the reflux member (310) and the feed assembly (500) respectively. The reflux member (310) has a reflux cavity communicating with the machining gap. The outlet member (320) and the reflux member (310) form an outlet cavity communicating with the reflux cavity. The outlet member (320) has an outlet (321) communicating with the outlet cavity in the vertical direction. The liquid inlet (220) is arranged in a ring shape. The inner ring of the liquid inlet (220) is connected to the guide (210), and the outer ring of the liquid inlet (220) is connected to the fixing assembly (100). A first sealing groove is provided on the inner ring of the liquid inlet (220), and a first sealing ring (230) is provided in the first sealing groove. A second sealing groove is provided on the outer end of the liquid inlet (220), and a second sealing ring (240) is provided in the second sealing groove.

2. The electrolytic machining fixture for eddy current generator blades according to claim 1, characterized in that, The fixing assembly (100) includes a fixing plate (110) arranged vertically, a square positioning cavity (120) opened on the fixing plate (110) for accommodating the vortex, an angular positioning block (130) arranged on the inner wall of the square positioning cavity (120) for interlocking with the vortex to angularly position the vortex, and a fixing screw (140) threaded to the fixing plate (110) for radially abutting and fixing the vortex.

3. The electrolytic machining fixture for eddy current generator blades according to claim 1, characterized in that, The liquid inlet (220) is provided with an inlet (221) for electrolyte entry, which is connected to the liquid inlet chamber and arranged opposite to the guide (210) along the axial direction of the vortex.

4. The electrolytic machining fixture for eddy current generator blades according to any one of claims 1-3, characterized in that, A third sealing groove is provided on the outer wall of the reflux assembly (300), and a third sealing ring is provided in the third sealing groove.

5. The electrolytic machining fixture for eddy current generator blades according to any one of claims 1-3, characterized in that... Two flow guiding components (200) are provided and are respectively arranged on opposite sides of the fixed component (100). The flow guiding component (200), the return component (300), the processing cathode (400) and the feed component (500) are arranged in a corresponding manner.

6. The electrolytic machining fixture for eddy current generator blades according to any one of claims 1-3, characterized in that, The electrolytic machining fixture for eddy current generator blades also includes an inlet pipe communicating with the inlet chamber; and / or The electrolytic machining fixture for eddy current generator blades also includes an outlet pipe that is connected to the return channel.

7. A method for electrolytic machining of eddy current generator blades, characterized in that, The electrolytic machining fixture for eddy current generator blades as described in any one of claims 1-6 specifically includes the following steps: S1, the fixed component (100) is installed on the machine tool workbench, the guide component (210) and the liquid inlet component (220) are assembled first to form the flow guiding component (200), and then the flow guiding component (200) is installed on the fixed component (100); S2, install the eddy current generator on the fixed assembly (100), then arrange the return assembly (300) on the feed assembly (500), and finally arrange the machining cathode (400) on the return assembly (300); S3, the liquid inlet component (220) is connected to the liquid inlet pipe, the return component (300) is connected to the liquid outlet pipe, the fixing component (100) is connected to the positive terminal of the machine tool power supply to make the eddy current positively charged, the machining cathode (400) is connected to the negative terminal of the machine tool power supply to make it negatively charged, the machining parameters are set, the electrolyte is introduced through the liquid inlet pipe, and the feed component (500) works to perform electrolytic machining on the eddy current.

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