Flexible gear wheel electrolytic machining machine tool

Abstract

The present application relates to electrolytic processing equipment technical field, especially to a kind of flexible gear electrolytic processing machine tool, comprising: machine tool body, the machine tool body is equipped with working tank, main shaft module, liquid return tank and electrical cabinet module;Working tank, the positioning fixture is provided in the working tank, for fixing the flexible gear to be processed;Main shaft module, the main shaft module is set in the upper of the working tank.This application is provided with the positioning fixture for fixing flexible gear workpiece in the machine tool body and the cathode mounting seat that can drive electrode relative flexible gear feeding by main shaft module, cathode mounting seat inside is equipped with multiple-stage flow channel that is sequentially communicated, so that electrolyte can be directional delivery to the gap region between flexible gear and electrode, electrolysis reaction is generated between electrode and workpiece through electrolyte, flexible gear produces anodic dissolution, electrolyte flows continuously along flow channel in reaction process and removes product is discharged, to avoid the product that removes in the tooth surface that flexible gear is processed and formed is accumulated and adhered.

Description

Technical Field

[0001] This invention relates to the field of electrolytic processing equipment technology, and in particular to a flexible wheel electrolytic processing machine tool. Background Technology

[0002] The flexible gear is one of the core components of a harmonic reducer. It is typically a thin-walled, elastic cup- or cap-shaped part made of metal. The flexible gear transmits motion through its own elastic deformation. Its outer circumference is toothed to cooperate with the rigid gear and wave generator to achieve high-precision transmission. Since the flexible gear needs to withstand alternating stress repeatedly during transmission, the machining accuracy of its teeth has a significant impact on the transmission accuracy of the harmonic reducer.

[0003] The main machining methods for flexible gear teeth are machining and electrochemical machining. Traditional machining uses cutting or grinding to process flexible gear teeth. However, the machined surface of a flexible gear is usually a thin-walled structure, which is easily deformed under cutting or clamping forces. Electrochemical machining, as a non-contact machining method, uses the principle of anodic dissolution of metal in an electrolyte to remove material. During the machining process, the workpiece is free from cutting forces and stress deformation, making it very suitable for machining thin-walled, high-precision, and complex parts. Moreover, compared with machining, electrochemical machining can form the part in one step without the need for roughing, heat treatment, tooth profile machining, deburring, surface treatment, etc. However, existing electrochemical machining equipment has an unreasonable electrolyte supply design when dealing with workpieces with specific shapes like flexible gears, resulting in poor electrolyte renewal in the machining gap and difficulty in quickly removing corrosion products. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible wheel electrolytic machining tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flexible wheel electrolytic machining tool, comprising:

[0007] The machine tool body includes a work box, a spindle module, a return fluid tank, and an electrical cabinet module.

[0008] A work box, wherein a positioning fixture is provided in the work box for fixing the flexible wheel to be processed;

[0009] A spindle module is disposed above the work box. The spindle module is driven to connect to a cathode mounting base, on which an electrode is mounted. The spindle module drives the cathode mounting base to move in a first direction perpendicular to the work box, thereby feeding the electrode relative to the flex wheel.

[0010] The return tank is used to store electrolyte and is connected between the cathode mounting base and the working tank, so that the electrolyte can circulate between the cathode mounting base and the working tank.

[0011] An electrical cabinet module includes a power supply, the positive terminal of which is electrically connected to a flexible wheel, and the negative terminal of which is electrically connected to an electrode.

[0012] Preferably, the spindle module includes a side plate, which is mounted on the machine tool body. The side plate is provided with a first drive mechanism, which is electrically connected to the electrical cabinet module and drivenly connected to the cathode mounting base.

[0013] Preferably, the cathode mounting base includes a top plate, a support cylinder is mounted at the bottom of the top plate, a positioning ring is mounted at the bottom of the support cylinder, and the electrode is mounted between the support cylinder and the positioning ring;

[0014] The inner contour of the positioning ring is set to correspond to the outer contour shape of the flexible wheel.

[0015] Preferably, the top plate has at least one first channel connected to the return tank, the support cylinder has at least one second channel communicating with the first channel, the top surface of the positioning ring has a second storage groove, the second channel passes through the electrode and communicates with the second storage groove, the inner ring of the positioning ring has a reaction groove, and a plurality of fourth channels are provided between the second storage groove and the reaction groove for communication.

[0016] The bottom of the support cylinder is provided with a first storage groove, which passes through the electrode and communicates with a second storage groove. The support cylinder is provided with a plurality of third channels communicating with the first storage groove. The other end of the third channel passes through the inner wall of the support cylinder, and the angle between the third channel and the tangent of the inner wall of the support cylinder is an acute angle.

[0017] Preferably, the support cylinder is further provided with an overflow hole, which penetrates the cylinder wall of the support cylinder radially, and the overflow hole is offset from the second channel.

[0018] Preferably, the working box includes an electrolytic cell, the electrolytic cell is provided with a worktable, and the positioning fixture is installed on the worktable;

[0019] The positioning fixture includes a base, on which a water jacket is installed. The water jacket contains an inner tensioning assembly coaxial with the water jacket. The inner tensioning assembly includes multiple inner support blocks and a tensioning bolt. The base is provided with a limiting groove. One bottom end of the multiple inner support blocks is installed around the limiting groove. The tensioning bolt is movably disposed on the central axis of the multiple support blocks.

[0020] Preferably, the base is provided with drainage holes that extend vertically through its upper and lower end faces, and the drainage holes are coaxial with the water jacket.

[0021] Preferably, the return tank includes a tank body, the tank body is covered and connected to a top cover, the top cover is provided with a water inlet pipe communicating with the tank body, and a first pump body is provided between the water inlet pipe and the working tank;

[0022] The outer side of the tank is provided with a water outlet pipe that communicates with the solution layer. The other end of the water outlet pipe is connected to the cathode mounting base through a pipe, and a second pump body is provided between the water outlet pipe and the cathode mounting base.

[0023] Preferably, the interior of the housing is provided with a coarse filter layer, a fine filter layer and a solution layer from top to bottom, and the coarse filter layer and the fine filter layer are respectively filled with a first filter medium and a second filter medium;

[0024] The housing is equipped with a liquid level sensor located in the solution layer, and the liquid level sensor is electrically connected to the electrical cabinet module.

[0025] Preferably, a CNC panel is also installed on the outside of the machine tool body, and the CNC panel is electrically connected to the electrical cabinet module.

[0026] Compared with the prior art, the present invention provides a flexible wheel electrolytic machining tool, which has the following beneficial effects:

[0027] This invention includes a positioning fixture for fixing the flexible wheel workpiece inside the machine tool body, and a cathode mounting seat that can drive the electrode to feed relative to the flexible wheel via the spindle module. The cathode mounting seat has a multi-stage flow channel connected in sequence, which allows the electrolyte to be directionally and efficiently delivered to the gap area between the flexible wheel and the electrode under the drive of the pump. The electrode acts as the cathode and the workpiece acts as the anode, generating an electrolytic reaction in the electrolyte. This causes the anode of the flexible wheel to dissolve and form a second tooth. During the reaction, the electrolyte flows continuously along the flow channel to discharge the etched products, thereby preventing the etched products from accumulating and adhering on the tooth surface formed by the flexible wheel. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the isometric structure of the present invention (first view).

[0029] Figure 2 This is a schematic diagram of the isometric structure of the present invention (second view).

[0030] Figure 3 This is a schematic diagram of the alignment structure of the cathode mounting base and positioning fixture of the present invention;

[0031] Figure 4 This is a cross-sectional view of the internal structure of the positioning fixture of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of a portion of the structure at point A;

[0033] Figure 6 This is an exploded view of the cathode mounting base and electrode connection structure of the present invention;

[0034] Figure 7 This is a cross-sectional schematic diagram of the internal structure of the top plate and support cylinder of the present invention;

[0035] Figure 8 This is a schematic diagram of the isometric structure of the electrode of the present invention;

[0036] Figure 9 This is a schematic diagram of the isometric structure of the positioning ring of the present invention;

[0037] Figure 10 This is a top view of the positioning ring structure of the present invention;

[0038] Figure 11 This is an isometric structural diagram of the working box of the present invention;

[0039] Figure 12 This is a cross-sectional view of the internal structure of the return tank of the present invention.

[0040] In the diagram: 1. Machine tool body; 2. Spindle module; 3. Work box; 301. Electrolytic cell; 302. Worktable; 4. Return tank; 401. Top cover; 4011. Water inlet pipe; 402. Coarse filter layer; 403. Fine filter layer; 404. Solution layer; 4041. Water outlet pipe; 405. Liquid level sensor; 5. Electrical cabinet module; 6. CNC panel; 7. Positioning fixture; 701. Base; 7011. Limiting groove; 7012. Drain hole; 702. Water jacket; 703. Internal tensioning assembly; 8. Cathode mounting base; 801. Top plate; 8 011, First channel; 802, Support cylinder; 8021, Second channel; 8022, First storage tank; 8023, Third channel; 8024, Overflow hole; 8025, Positioning tube; 803, Positioning ring; 8031, Second storage tank; 8032, Reaction tank; 8033, Fourth channel; 804, Rubber ring; 9, Electrode; 901, First tooth; 902, Outer ring; 9021, First through hole; 9022, Second through hole; 9023, Third through hole; 10, Flexible wheel; 11, First pump body; 12, Second pump body. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] like Figure 1 - Figure 12 As shown, a flexible wheel electrolytic machining tool includes:

[0044] The machine tool body 1 contains a work box 3, a spindle module 2, a return fluid tank 4, and an electrical cabinet module 5.

[0045] The work box 3 is equipped with a positioning fixture 7 for fixing the flexible wheel 10 to be processed;

[0046] The spindle module 2 is located above the work box 3. The spindle module 2 is driven and connected to the cathode mounting base 8, and the cathode mounting base 8 is equipped with the electrode 9. The spindle module 2 drives the cathode mounting base 8 to move in a first direction perpendicular to the work box 3 so that the electrode 9 is fed relative to the flexible wheel 10.

[0047] The return tank 4 is used to store electrolyte and is connected between the cathode mounting base 8 and the working tank 3, so that the electrolyte circulates between the cathode mounting base 8 and the working tank 3. In use, the electrolyte is continuously pumped from one end of the return tank 4 to the cathode mounting base 8, flows out from the cathode mounting base 8 to the working tank 3 and collects, and is pumped back to the return tank 4. During the flow, the electrolyte flows through the flexible wheel 10 and the electrode 9, so that the flexible wheel 10, the electrode 9 and the electrolyte form an electrolytic cell.

[0048] Electrical cabinet module 5 includes a power supply. The positive terminal of the power supply is electrically connected to the flexible wheel 10, and the negative terminal of the power supply is electrically connected to the electrode 9. When the flexible wheel 10 to be processed is fixed on the worktable 302 of the work box 3 by the positioning fixture 7, the first drive mechanism of the spindle module 2 drives the cathode mounting seat 8 to feed the electrode 9 relative to the flexible wheel 10 in the first direction until the electrode 9 approaches the surface of the flexible wheel 10 to be processed to form a suitable processing gap. The power supply is turned on to make the positive terminal of the power supply and the flexible wheel 10 conduct, so that the flexible wheel 10 serves as the anode of the electrolytic cell. The electrode 9 is provided with a first tooth 901, which is connected to the negative terminal of the power supply and serves as the cathode of the electrolytic cell. The contour corresponding to the orthographic projection of the first tooth 901 on the surface of the flexible wheel 10 is anoly dissolved and etched, thereby forming a second tooth on the flexible wheel 10.

[0049] Electrical cabinet module 5 can monitor and control parameters such as current and voltage in real time during the processing to ensure stable electrolytic processing.

[0050] Furthermore, the spindle module 2 includes a side plate, which is mounted on the machine tool body 1. The side plate is provided with a first drive mechanism, which is electrically connected to the electrical cabinet module 5 and driven by the cathode mounting base 8. In use, the first drive mechanism is preferably a transmission structure of servo motor and ball screw, which drives the cathode mounting base 8 to move in the first direction so that the electrode 9 is relatively closer to or further away from the flexible wheel 10, so as to achieve high-precision feed control of the electrode 9 and ensure that the gap between the electrode 9 and the flexible wheel 10 is always within the range that is conducive to the electrolytic cell reaction during the electrolytic processing.

[0051] Furthermore, the cathode mounting base 8 includes a top plate 801, a support cylinder 802 is mounted on the bottom of the top plate 801, a positioning ring 803 is mounted on the bottom of the support cylinder 802, and the electrode 9 is mounted between the support cylinder 802 and the positioning ring 803. The positioning ring 803 and the support cylinder 802 are fastened together by bolts. The bottom surface of the support cylinder 802 is provided with a protruding stud, and the electrode 9 is provided with a first through hole 9021 through which the stud can pass. The positioning ring 803 is provided with a countersunk hole corresponding to the stud, and a bolt is provided in the countersunk hole. The bolt is threadedly connected to the stud, and the electrode 9 is clamped and mounted between the positioning ring 803 and the support cylinder 802, so that electrodes 9 of the same size but different tooth profiles can be flexibly replaced.

[0052] The inner contour of the positioning ring 803 is set to correspond to the outer contour shape of the flexible wheel 10. During the feeding process, the cathode mounting seat 8 is covered outside the flexible wheel 10 and can move relative to the flexible wheel 10. Since the inner contour of the positioning ring 803 corresponds to the outer contour shape of the flexible wheel 10, the positioning ring 803 and the flexible wheel 10 are structurally matched, and the gap between the contours does not affect the axial movement of the positioning ring 803 relative to the flexible wheel 10. The positioning ring 803 is located below the reaction tank 8032 and is provided with a rubber ring 804 to fill the gap between the positioning ring 803 and the flexible wheel 10 to prevent the electrolyte from flowing out of the gap and reduce the electrolyte discharge loss.

[0053] Furthermore, the top plate 801 has at least one set of first channels 8011 connected to the return tank 4, the support cylinder 802 has at least one set of second channels 8021 connected to the first channels 8011, the top surface of the positioning ring 803 has a second storage groove 8031, the second channel 8021 passes through the electrode 9 and connects to the second storage groove 8031, the inner ring of the positioning ring 803 has a reaction groove 8032, and a number of fourth channels 8033 are provided between the second storage groove 8031 ​​and the reaction groove 8032 for connection;

[0054] The bottom of the support cylinder 802 is provided with a first storage groove 8022, which passes through the electrode 9 and is connected to the second storage groove 8031. The support cylinder 802 is provided with a plurality of third channels 8023 connected to the first storage groove 8022. The other end of the third channel 8023 penetrates the inner wall of the support cylinder 802, and the angle between the third channel 8023 and the tangent of the inner wall of the support cylinder 802 is an acute angle, i.e., a < 90°.

[0055] During processing, the return tank 4 pumps the electrolyte into the first channel 8011 of the cathode mounting base 8 via the second pump body 12. The electrolyte enters the second channel 8021 of the support cylinder 802 along the first channel 8011, and then enters the second storage tank 8031 ​​through the second channel 8021 and the positioning tube 8025. It then passes through the fourth channel 8033 and enters the reaction tank 8032, filling the space between the flexible wheel 10 and the electrode 9 with electrolyte to form an electrolytic cell. The electrolyte is continuously replenished into the reaction tank 8032 area through the second channel 8021. The reaction tank 8032 surrounds the outer contour of the flexible wheel 10, ensuring that the electrolyte inside the tank is in full contact with the flexible wheel 10, and ensuring that there are no dead corners in the electrolytic reaction area. To maintain a high-efficiency electrolysis environment with a low electrolyte consumption, the continuously flowing electrolyte, under pressure, causes the electrolyte in the second storage tank 8031 ​​to flow in the opposite direction through the third through hole 9023 of the electrode 9 into the first storage tank 8022 and out through the third channel 8023. At least part of the port of the third channel 8023 corresponds to the tooth groove of the second tooth of the flexible wheel 10, so that the electrolyte flows tangentially under pressure to wash the tooth groove surface of the already formed flexible wheel 10. While continuously providing fresh electrolyte, the reaction products can be discharged in time to avoid the anodic etching products from adhering to the surface of the second tooth, thereby avoiding the anodic etching products and improving the quality of electrolytic processing.

[0056] The upper and lower end faces of electrode 9 are in close contact with the bottom wall of support cylinder 802 and the top wall of positioning ring 803, respectively, thereby dividing the first storage tank 8022 and the second storage tank 8031 ​​into two independent cavities. The bottom of support cylinder 802 is provided with a positioning tube 8025 that is coaxial with and connected to the second channel 8021. Electrode 9 is provided with a second through hole 9022 through which the positioning tube 8025 can pass. The positioning tube 8025 passes through the second through hole 9022 of electrode 9, so that the first storage tank 8022 and the second storage tank 8031 ​​are connected, so that the electrolyte can enter the first storage tank 8022 in reverse from the second storage tank 8031 ​​under pressure. Electrode 9 is also provided with a third through hole 9023 through which the electrolyte flows in the first storage tank 8022 and the second storage tank 8031.

[0057] The outer ring of electrode 9 is made of glass fiber and is arranged around the first tooth 901. The first through hole 9021, the second through hole 9022 and the third through hole 9023 are all arranged on the outer ring 902. The first tooth 901 is electrically connected to the positive power supply of the electrical cabinet module 5 through the outer ring 902 via a contact or wire.

[0058] In some embodiments, the second storage tank 8031 ​​may also be configured to be in complete communication with the reaction tank 8032.

[0059] Furthermore, the support cylinder 802 is also provided with an overflow hole 8024, which penetrates the cylinder wall of the support cylinder 802 radially. The overflow hole 8024 is offset from the second channel 8021 to avoid the electrolyte overflow caused by the connection between the second channel 8021 and the overflow hole 8024. As the reaction proceeds, the electrolyte is continuously pumped, causing the electrolyte level between the flexible wheel 10 and the inner wall of the support cylinder 802 to gradually rise. In the initial stage of processing, when the level is higher than the top surface of the flexible wheel 10, it overflows from the inner ring of the non-processing area of ​​the flexible wheel 10. In the later stage of processing, under the drive of the spindle module 2, the support cylinder 802 moves downward relative to the flexible wheel 10, causing the overflow hole 8024 to move to a position below the top surface of the flexible wheel 10, so that the electrolyte can be discharged from the overflow hole 8024.

[0060] Furthermore, the working box 3 includes an electrolytic cell 301, in which a worktable 302 is provided, and a positioning fixture 7 is installed on the worktable 302, so that the positioning fixture 7 can be disassembled and replaced for easy maintenance.

[0061] The positioning fixture 7 includes a base 701, on which a water jacket 702 is mounted. An inner tensioning assembly 703, coaxial with the water jacket 702, is provided in the water jacket 702. The inner tensioning assembly 703 includes multiple inner support blocks and a tensioning bolt. A limiting groove 7011 is provided on the base 701. The bottom ends of the multiple inner support blocks are installed around the limiting groove 7011. The tensioning bolt is movably arranged on the central axis of the multiple support blocks. The tensioning bolt can be inserted between the multiple inner support blocks along the central axis of the inner tensioning assembly 703, thereby driving the multiple inner support blocks to move outward synchronously. When installing the flexible wheel 10, the outer contour of the inner support block abuts against the inner contour of the non-machined surface of the flexible wheel 10, thereby fixing the flexible wheel 10.

[0062] Furthermore, the base 701 is provided with a drain hole 7012 that runs vertically through its upper and lower end faces. The drain hole 7012 is coaxial with the water jacket 702, so that the electrolyte overflowing from the gap between the flexible wheel 10 and the support cylinder 802 is finally collected in the electrolytic cell 301 through the drain hole 7012, and then flows back to the return tank 4 for filtration and collection under the drive of the first pump body 11.

[0063] Furthermore, the return tank 4 includes a tank body, and a top cover 401 is connected to the tank body. The top cover 401 is provided with a water inlet pipe 4011 that communicates with the tank body. A first pump body 11 is provided between the water inlet pipe 4011 and the working tank 3. The first pump body 11 is connected between the water inlet pipe 4011 and the electrolytic cell 301 through a pipe, so that the electrolyte collected in the electrolytic cell 301 can flow back to the return tank 4 for processing through the water inlet pipe 4011 under the drive of the first pump body 11.

[0064] The tank is equipped with an outlet pipe 4041 that communicates with the solution layer 404. The other end of the outlet pipe 4041 is connected to the cathode mounting base 8 through a pipe. A second pump body 12 is provided between the outlet pipe 4041 and the cathode mounting base 8. The second pump body 12 is connected between the outlet pipe 4041 and the first channel 8011 of the cathode mounting base 8 through a pipe. During the electrolytic processing, the second pump body 12 transports the electrolyte in the solution layer 404 in the return tank 4 to the cathode mounting base 8, so that the electrolyte flows into the first storage tank 8022, the reaction tank 8032 and the second storage tank 8031 ​​through the first channel 8011 and the second channel 8021, so that the electrolyte flows continuously along the above path.

[0065] The first pump body 11 and the second pump body 12 are electrically connected to the electrical cabinet module 5.

[0066] Furthermore, the interior of the chamber is provided with a coarse filter layer 402, a fine filter layer 403, and a solution layer 404 from top to bottom. The coarse filter layer 402 and the fine filter layer 403 are respectively filled with a first filter medium and a second filter medium. In use, the first filter medium can be made of quartz sand, activated carbon, etc., to remove larger particulate impurities in the electrolyte. The second filter medium can be made of ceramic filter element, ultrafiltration membrane, etc., to further remove the tiny particles generated by anodic etching, to ensure the purity of the electrolyte and avoid impurities causing pipe blockage.

[0067] A liquid level sensor 405 is installed in the solution layer 404 of the box. The liquid level sensor 405 is electrically connected to the electrical cabinet module 5. When the electrolyte level in the solution layer 404 is lower than the preset threshold, the liquid level sensor 405 transmits a signal to the electrical cabinet module 5. The electrical cabinet module 5 can issue an alarm to indicate that electrolyte needs to be added. The top cover 401 is equipped with a filling tube for adding electrolyte.

[0068] Furthermore, a CNC panel 6 is also installed on the outside of the machine tool body 1. The CNC panel 6 is electrically connected to the electrical cabinet module 5. The operator can input processing parameters, such as electrode 9 feed speed, processing current, voltage, electrolyte flow rate, etc., through the CNC panel 6, and can monitor various data and equipment operating status in real time during the processing.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flexible gear wheel electrochemical machining machine tool, characterized in that, include: The machine tool body (1) is equipped with a work box (3), a spindle module (2), a return tank (4) and an electrical cabinet module (5). The work box (3) is provided with a positioning fixture (7) for fixing the flexible wheel (10) to be processed. A spindle module (2) is located above the work box (3). The spindle module (2) is driven to connect to a cathode mounting base (8). An electrode (9) is mounted on the cathode mounting base (8). The spindle module (2) drives the cathode mounting base (8) to move in a first direction perpendicular to the work box (3) so that the electrode (9) is fed relative to the flex wheel (10). The return tank (4) is used to store electrolyte and is connected between the cathode mounting base (8) and the working tank (3) so that the electrolyte can circulate between the cathode mounting base (8) and the working tank (3); The electrical cabinet module (5) includes a power supply, the positive terminal of which is electrically connected to the flexible wheel (10), and the negative terminal of which is electrically connected to the electrode (9).

2. The flexible gear wheel electrolytic machining machine tool according to claim 1, characterized in that, The spindle module (2) includes a side plate, which is mounted on the machine tool body (1). The side plate is provided with a first drive mechanism, which is electrically connected to the electrical cabinet module (5) and drivenly connected to the cathode mounting base (8).

3. A flexible wheel electrolytic machining tool according to claim 1 or 2, characterized in that, The cathode mounting base (8) includes a top plate (801), a support cylinder (802) is mounted at the bottom of the top plate (801), a positioning ring (803) is mounted at the bottom of the support cylinder (802), and the electrode (9) is mounted between the support cylinder (802) and the positioning ring (803). The inner contour of the positioning ring (803) is set to correspond to the outer contour shape of the flexible wheel (10).

4. The flexible wheel electrolytic machining tool according to claim 3, characterized in that, The top plate (801) has at least one first channel (8011) connected to the return tank (4) inside. The support cylinder (802) has at least one second channel (8021) connected to the first channel (8011) inside the cylinder wall. The top surface of the positioning ring (803) has a second storage groove (8031). The second channel (8021) passes through the electrode (9) and is connected to the second storage groove (8031). The inner ring of the positioning ring (803) has a reaction groove (8032). Several fourth channels (8033) are provided between the second storage groove (8031) and the reaction groove (8032) to communicate. The bottom of the support cylinder (802) is provided with a first storage groove (8022), which passes through the electrode (9) and communicates with a second storage groove (8031). The support cylinder (802) is provided with a plurality of third channels (8023) that communicate with the first storage groove (8022). The other end of the third channel (8023) penetrates the inner wall of the support cylinder (802), and the angle between the third channel (8023) and the tangent of the inner wall of the support cylinder (802) is an acute angle.

5. The flexible wheel electrolytic machining tool according to claim 4, characterized in that, The support cylinder (802) is also provided with an overflow hole (8024), which penetrates the cylinder wall of the support cylinder (802) radially, and the overflow hole (8024) is misaligned with the second channel (8021).

6. The flexible wheel electrolytic machining tool according to claim 5, characterized in that, The work box (3) includes an electrolytic cell (301), and a workbench (302) is provided in the electrolytic cell (301). The positioning fixture (7) is installed on the workbench (302). The positioning fixture (7) includes a base (701), on which a water jacket (702) is installed. The water jacket (702) is provided with an inner tensioning assembly (703) coaxial with the water jacket (702). The inner tensioning assembly (703) includes multiple inner support blocks and a tensioning bolt. The base (701) is provided with a limiting groove (7011). One end of the bottom of the multiple inner support blocks is installed around the limiting groove (7011). The tensioning bolt is movably arranged on the central axis of the multiple support blocks.

7. The flexible wheel electrolytic machining tool according to claim 6, characterized in that, The base (701) is provided with a drain hole (7012) that runs vertically through its upper and lower ends. The drain hole (7012) is coaxial with the water jacket (702).

8. The flexible wheel electrolytic machining tool according to claim 1, characterized in that, The return tank (4) includes a tank body, the tank body is covered and connected to a top cover (401), the top cover (401) is provided with a water inlet pipe (4011) communicating with the tank body, and a first pump body (11) is provided between the water inlet pipe (4011) and the working box (3). The outer side of the box is provided with a water outlet pipe (4041) that communicates with the solution layer (404). The other end of the water outlet pipe (4041) is connected to the cathode mounting base (8) through a pipe. A second pump body (12) is provided between the water outlet pipe (4041) and the cathode mounting base (8).

9. A flexible wheel electrolytic machining tool according to claim 8, characterized in that, The interior of the box is provided with a coarse filter layer (402), a fine filter layer (403) and a solution layer (404) from top to bottom. The coarse filter layer (402) and the fine filter layer (403) are respectively filled with a first filter medium and a second filter medium. The box is equipped with a liquid level sensor (405) in the solution layer (404), and the liquid level sensor (405) is electrically connected to the electrical cabinet module (5).

10. A flexible wheel electrolytic machining tool according to claim 1, characterized in that, The machine tool body (1) is also equipped with a CNC panel (6), which is electrically connected to the electrical cabinet module (5).

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