Sleeve-shaped electrolytic machining device with enhanced liquid supply through liquid-increasing holes

Abstract

The present invention discloses a sleeve-shaped electrolytic machining device with a liquid-increasing hole to enhance liquid supply, comprising a cathode head, a cathode seat assembly and a liquid supply assembly, wherein a first contoured hole and a plurality of liquid-increasing holes are provided on the cathode head, and the plurality of liquid-increasing holes are arranged around the first contoured hole; the cathode seat assembly defines a liquid supply channel that is opposite to and connected with the first contoured hole, and at least a portion of the liquid supply channel is a contoured structure corresponding to the first contoured hole, and the cathode seat assembly further defines a liquid-increasing channel that is opposite to and connected with the liquid-increasing hole; the liquid supply assembly is used to supply electrolyte to the liquid supply channel and the liquid-increasing channel. A multi-channel liquid supply method is adopted, and the design of the liquid-increasing hole supplements the liquid supply to the low-speed area of ​​the flow field in the processing area, thereby improving the uniformity and stability of the flow field and facilitating the high-speed sleeve electrolytic machining of parts. In addition, the main path and the liquid-increasing path are separated, and the main path and the liquid-increasing path can be adjusted separately, thereby improving the flexibility of adjusting the liquid supply pressure and further enhancing the improvement effect of the liquid supply on the flow field.

Description

Technical Field

[0001] The present invention relates to the field of electrolysis technology, in particular to a sleeve-shaped electrolytic machining device with liquid-increasing holes for enhanced liquid supply. Background Art

[0002] Rotor cascades are key components of aircraft engine turbopumps. Composed of blades and a disc, they are monolithic structures often made from difficult-to-cut materials such as high-temperature alloys, titanium alloys, and high-strength stainless steel. The cascades feature a low aspect ratio, dense arrangement, minimal inter-blade clearances, and high requirements for surface profile and positional accuracy, making their manufacturing process highly challenging.

[0003] Sleeve electrochemical machining is a special machining technology that achieves material removal based on the principle of electrochemical anodic dissolution. During the machining process, the cathode of the profiling tool is fed to the anode of the workpiece under the control of the numerical control system, and the anode material of the workpiece gradually dissolves to achieve the machining and shaping of the workpiece. The sleeve electrochemical machining method has the advantages of high machining efficiency, no tool electrode loss, and no cutting stress. It can achieve efficient machining and shaping of difficult-to-cut materials, especially for achieving efficient, low-cost, and batch manufacturing of parts made of difficult-to-cut materials. However, the sleeve electrochemical machining devices and methods in the related art still have problems in the field of blade sleeve electrochemical machining, such as the uniformity and poor stability of the electrolyte directional flow field in the machining area and the inflexible water pressure regulation, which affect the electrochemical machining efficiency and machining quality of the blade. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a sleeve-shaped electrochemical machining device with enhanced liquid supply through a liquid-increasing hole, thereby achieving efficient electrochemical machining of rotor blades.

[0005] The sleeve-shaped electrolytic machining device with liquid-enhancing holes in an embodiment of the present invention comprises a cathode head, on which a first contoured hole and a plurality of liquid-enhancing holes are provided, and the plurality of liquid-enhancing holes are arranged around the first contoured hole; a cathode seat assembly, wherein the cathode seat assembly defines a liquid supply channel opposite to and passing through the first contoured hole, and at least a portion of the liquid supply channel is a contoured structure corresponding to the first contoured hole, and the cathode seat assembly further defines a liquid-enhancing channel opposite to and passing through the liquid-enhancing holes; and a liquid supply assembly, wherein the liquid supply assembly is used to provide electrolyte to the liquid supply channel and the liquid-enhancing channel.

[0006] The sleeve electrochemical machining device with enhanced liquid supply using liquid-increasing holes, provided in an embodiment of the present invention, employs a multi-channel liquid supply method. The liquid-increasing holes on the cathode head supplement the liquid supply to the low-speed flow field in the machining area, improving the uniformity and stability of the flow field and facilitating high-speed sleeve electrochemical machining of parts. Furthermore, the liquid supply assembly supplies liquid to the liquid supply channel and the liquid-increasing channel separately, achieving separation between the main and liquid-increasing channels. These channels can be adjusted independently, increasing the flexibility of liquid supply pressure regulation and further enhancing the flow field-improving effects of enhanced liquid supply.

[0007] Optionally, the cathode seat assembly includes a cathode mounting seat and a multi-way liquid supply insulating member, the cathode head is mounted at the front end of the cathode mounting seat, and the multi-way liquid supply insulating member is sandwiched between the cathode mounting seat and the cathode head.

[0008] Optionally, the multi-channel liquid supply insulating component is provided with a first contoured opening, and the first contoured opening corresponds to and is connected to the first contoured hole.

[0009] Optionally, the cathode mounting seat is provided with a second contoured opening, and the second contoured opening corresponds to and is connected to the first contoured opening.

[0010] Optionally, the multi-channel liquid supply insulating component is provided with a first liquid increasing port, and the first liquid increasing port is connected to the plurality of liquid increasing holes.

[0011] Optionally, the cathode mounting seat is provided with a second liquid increasing port, and the second liquid increasing port is connected to the first liquid increasing port.

[0012] Optionally, the liquid supply component includes a liquid separation and charging seat, which is connected to the negative pole of the power supply. The liquid separation and charging seat is located on the rear side of the cathode seat assembly and is connected to it. The liquid separation and charging seat has a first guide groove connected to the liquid supply channel and a second guide groove connected to the liquid increasing channel.

[0013] Optionally, the liquid separation and electrostatic seat has a first liquid supply interface and a second liquid supply interface, the first liquid supply interface is connected to the first guide groove, and the second liquid supply interface is connected to the second guide groove.

[0014] Optionally, a plurality of the liquid-increasing holes are respectively located on both sides of the first contoured hole.

[0015] Optionally, the cathode head includes a cathode plate, a first connecting part and a second connecting part, the first contoured hole and the liquid increasing hole are both arranged on the cathode plate, the first connecting part and the second connecting part are located on both sides of the cathode plate for connecting to the cathode seat assembly, and the sleeve-type electrolytic machining device also includes two insulating protective parts, and the two insulating protective parts are respectively arranged on the front side of the first connecting part and the front side of the second connecting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a sleeve-shaped electrolytic machining device provided in an embodiment of the present invention.

[0017] Figure 2 It is an exploded schematic diagram of the sleeve-shaped electrolytic machining device provided by an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the electrolyte flow path of the sleeve-shaped electrolytic machining device provided in an embodiment of the present invention.

[0019] Figure 4 It is a structural schematic diagram of the cathode head provided by an embodiment of the present invention.

[0020] Reference numerals:

[0021] Sheath type electrolytic machining device 100,

[0022] Cathode head 1, first profiling hole 11, liquid increasing hole 12, cathode plate 13, first connecting part 14, second connecting part 15, liquid supply channel 20, liquid increasing channel 30,

[0023] Cathode mounting seat 2, second contoured opening 21, second liquid increasing port 22,

[0024] Multi-way liquid supply insulation 3, first contoured opening 31, first liquid increase port 32,

[0025] Liquid separation and electric conduction seat 4, first guide groove 41, second guide groove 42,

[0026] The first insulating protective member 51, the second insulating protective member 52,

[0027] Workpiece 6. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] The following is based on Figure 1-Figure 2 The present invention provides a sleeve-shaped electrolytic machining device 100 with enhanced liquid supply through liquid-increasing holes. The sleeve-shaped electrolytic machining device 100 includes a cathode head 1, a cathode base assembly, and a liquid supply assembly.

[0030] The cathode head 1 is provided with a first contoured hole 11 and a plurality of liquid-increasing holes 12, which are arranged around the first contoured hole 11. The cathode head 1 is connected to a cathode base assembly, which defines a liquid supply channel 20 that is opposite to and extends through the first contoured hole 11. At least a portion of the liquid supply channel 20 is a contoured structure corresponding to the first contoured hole 11, i.e., at least a portion of the liquid supply channel 20 is a contoured segment. The cathode base assembly further defines a liquid-increasing channel 30 that is opposite to and extends through the liquid-increasing hole 12. The liquid supply assembly is used to supply electrolyte to the liquid supply channel 20 and the liquid-increasing channel 30.

[0031] like Figure 1 As shown, the workpiece 6 is located in front of the cathode head 1. The electrolyte in the liquid supply channel 20 flows forward as the main electrolyte, enters the processing area through the first contoured hole 11 on the cathode head 1, and electrolytically processes the workpiece 6, eventually flowing out from the edge of the processing area. The electrolyte in the liquid boosting channel 30 flows forward as the liquid boosting path electrolyte, enters the low-flow rate area of ​​the processing area through the plurality of liquid boosting holes 12 on the cathode head 1, replenishes the liquid supply to this area, participates in the electrolytic reaction, and eventually flows out from the edge of the processing area.

[0032] The sleeve electrochemical machining device with enhanced liquid supply using liquid-increasing holes, provided in an embodiment of the present invention, employs a multi-channel liquid supply method. The liquid-increasing holes on the cathode head supplement the liquid supply to the low-speed flow field in the machining area, improving the uniformity and stability of the flow field and facilitating high-speed sleeve electrochemical machining of parts. Furthermore, the liquid supply assembly supplies liquid to the liquid supply channel and the liquid-increasing channel separately, achieving separation between the main and liquid-increasing channels. These channels can be adjusted independently, increasing the flexibility of liquid supply pressure regulation and further enhancing the flow field-improving effects of enhanced liquid supply.

[0033] The sleeve-shaped electrochemical machining device with enhanced liquid supply through the liquid-increasing hole provided in the embodiment of the present invention is particularly suitable for electrochemical machining of blade-type parts (such as rotor blade grids) with densely arranged blades and small gaps between blades.

[0034] The following is based on Figure 1-Figure 4 The structural features of the sleeve-shaped electrochemical machining device 100 in the specific embodiment provided by the present invention are further described.

[0035] like Figure 1 As shown, the workpiece 6 is located at the front side of the sleeve-shaped electrochemical machining device 100, opposite to the cathode head 1. The workpiece 6 is electrochemically machined to form a blade grid. In some embodiments, the sleeve-shaped electrochemical machining device 100 further includes a workpiece fixture (not shown) for clamping the workpiece 6.

[0036] In this embodiment, the workpiece 6 is fixed, and the cathode head 1 and cathode base assembly approach or move away from the workpiece 6 in the front-to-back direction. During processing of the workpiece 6, the cathode head 1 and cathode base assembly gradually approach the workpiece fixture 1 in the front-to-back direction, allowing the workpiece 6 to gradually extend into the first contoured hole 11 on the cathode head 1. With continued feeding, the workpiece 6, acting as the anode material, gradually dissolves under the corrosive action of the electrolyte, forming formed blades. With continued feeding, the formed blades gradually extend into the contoured section of the liquid supply channel 20.

[0037] like Figure 1 and Figure 2 As shown, the cathode base assembly includes a cathode mounting base 2 and a multi-way liquid supply insulating member 3, the cathode head 1 is mounted on the front end of the cathode mounting base 2, and the multi-way liquid supply insulating member 3 is sandwiched between the cathode mounting base 2 and the cathode head 1. Figure 1 In the illustrated embodiment, the cathode mounting base 2 is a frame-shaped structure, and the multi-channel liquid supply insulating member 3 is located within the frame-shaped structure of the cathode mounting base 2. Its front end is tightly fitted with the rear end of the cathode head 1, and its rear end is tightly fitted with the cathode mounting base 2. In this embodiment, the cathode mounting base 2 and the multi-channel liquid supply insulating member 3 jointly define a liquid supply channel 20 and a liquid increase channel 30.

[0038] Specifically, if Figure 2 and Figure 3 As shown, the multi-way liquid supply insulating member 3 has a first contoured opening 31. This first contoured opening 31 corresponds to and connects with the first contoured hole 11 in the front-to-back direction, i.e., the front end of the first contoured opening 31 connects with the rear end of the first contoured hole 11. The first contoured opening 31 of the multi-way liquid supply insulating member 3 serves as the contoured section of the liquid supply channel 20 and corresponds to the first contoured hole 11. During the machining of the workpiece 1, the formed blades can gradually extend into the first contoured opening 31 of the multi-way liquid supply insulating member 3. The cathode mounting base 2 abuts the rear end surface of the multi-way liquid supply insulating member 3 and has a liquid supply opening that corresponds to and connects with the rear end of the first contoured opening 31.

[0039] As an example, Figure 2 As shown, the liquid supply opening on the cathode mounting base 2 is a second contoured opening 21. The front end of the second contoured opening 21 corresponds to and connects with the rear end of the first contoured opening 31. That is, the cross-section of the second contoured opening 21 is a contoured structure similar to the cross-section of the first contoured opening 31. In this embodiment, the entire liquid supply channel 20 is a contoured structure. The first contoured hole 11, the first contoured opening 31, and the second contoured opening 21 correspond to and connect with each other from front to back. During machining, the formed blade passes through the first contoured hole 11, the first contoured opening 31, and the second contoured opening 21 in sequence and is supported. The contoured structure supports the formed blade, preventing vibration, improving the blade's rigidity and tampering, preventing deformation of the formed blade, and enhancing the stability of the workpiece during electrochemical machining.

[0040] like Figure 2 As shown, the multi-channel liquid supply insulating member 3 is provided with a first liquid increase port 32, which is connected to the plurality of liquid increase holes 12. The cathode mounting seat 2 is provided with a second liquid increase port 22, which is connected to the first liquid increase port 32.

[0041] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the cathode head 1 has multiple liquid-increasing holes 12 distributed on both sides of the first contoured hole 11. The multi-channel liquid supply insulator 3 is provided with two first liquid-increasing ports 32, located on either side of the first contoured opening 31. One first liquid-increasing port 32 is aligned with and connected to the multiple liquid-increasing holes 12 on the corresponding side, while the other first liquid-increasing port 32 is aligned with and connected to the multiple liquid-increasing holes 12 on the other side. The cathode mounting base 2 is provided with two second liquid-increasing ports 22, the front ends of the two second liquid-increasing ports 22 correspondingly communicating with the rear ends of the two first liquid-increasing ports 32.

[0042] Optionally, the liquid-increasing holes 12 are circular holes with a diameter of 0.05-1 mm, which are symmetrically distributed on both sides of the first contoured hole 11, and the number and distribution positions of the liquid-increasing holes 12 are optimized based on the flow field simulation results, so that the electrolyte flowing out of the liquid-increasing holes 12 can play a role in replenishing the liquid supply to the low flow rate area of ​​the processing area.

[0043] like Figure 3 As shown, the liquid supply channel 20 and the liquid increasing channel 30 both extend in the front-to-back direction.

[0044] like Figure 1 and Figure 2 As shown, the liquid supply assembly includes a liquid separation and charging seat 4, which is connected to the negative electrode of the power supply. The liquid separation and charging seat 4 is located on the rear side of the cathode mounting seat 2 and is connected thereto. The liquid separation and charging seat 4 supplies power to the cathode head 1 through the cathode mounting seat 2. The liquid separation and charging seat 4 has a first guide groove 41 connected to the liquid supply channel 20 and a second guide groove 42 connected to the liquid increase channel 30.

[0045] The liquid separation and electroconduction seat 4 has a first liquid supply interface (not shown in the figure) and a second liquid supply interface (not shown in the figure). The first liquid supply interface is connected to the first guide groove 41, and the second liquid supply interface is connected to the second guide groove 42.

[0046] The main electrolyte enters the first flow channel 41 through the first liquid supply interface, flows out of the first contoured hole 11 through the liquid supply channel 20, enters the processing area to participate in electrolytic machining, and finally flows out from the edge of the processing area. The electrolyte in the boosting liquid path enters the second flow channel 42 through the second liquid supply interface, flows out of the boosting liquid hole 12 through the boosting liquid channel 30, enters the low-flow velocity area of ​​the processing area, replenishes the liquid supply to this area, participates in the electrolytic reaction, and finally flows out from the edge of the processing area.

[0047] As an example, Figure 3 and Figure 4 As shown, the liquid-separating and electrostatic base 4 has one first guide groove 41, the outlet of which is opposite and connected to the second contoured opening 21 on the cathode mounting base 2 in the front-to-back direction. The liquid-separating and electrostatic base 4 has two second guide grooves 42, the outlets of which are opposite and connected to the two second liquid-increasing ports 22 on the cathode mounting base 2, respectively.

[0048] like Figure 3 and Figure 4 As shown, the first liquid supply interface of the liquid-separating and electric-inducing base 4 is located at its bottom, and the first guide groove 41 extends from bottom to top, with its outlet opposite the entrance of the second contoured opening 21. The second guide groove 42 of the liquid-separating and electric-inducing base 4 is a through groove that passes through the liquid-separating and electric-inducing base 4 in the front-to-back direction. The second liquid supply interface of the liquid-separating and electric-inducing base 4 is located on the rear side of the liquid-separating and electric-inducing base 4 and is connected to the entrances of both second guide grooves 42 on the liquid-separating and electric-inducing base 4.

[0049] The liquid separation electroplating seat 4 supplies liquid to the liquid supply channel 20 and the liquid increasing channel 30 respectively through the first guide groove 41 and the second guide groove 42, realizing the separation of liquid supply in the main path and the liquid increasing path, so that the liquid supply pressure of the liquid supply channel 20 and the liquid increasing channel 30 can be adjusted separately, realizing flexible adjustment of the liquid supply pressure, strengthening the improvement effect of the liquid supply convection field, solving the problem of poor uniformity of the electrolyte flow field in the processing area existing in the related technology, and being conducive to the realization of efficient, low-cost, batch electrolytic processing of rotor blade parts.

[0050] like Figure 2-Figure 4 As shown, the cathode head 1 specifically includes a cathode plate 13, a first connecting portion 14, and a second connecting portion 15. The first contoured hole 11 and the liquid-increasing hole 12 are both provided on the cathode plate 13. The first connecting portion 14 and the second connecting portion 15 are respectively located on both sides of the cathode plate 13. The first connecting portion 14 and the second connecting portion 15 are used to connect to the cathode mounting seat 2. The sleeve-type electrolytic machining device 100 also includes a first insulating protective member 51 and a second insulating protective member 52. The first insulating protective member 51 is provided on the front side of the first connecting portion 14, and the second insulating protective member 52 is provided on the front side of the second connecting portion 15. In this embodiment, the first insulating protective member 51 and the second insulating protective member 52 are both semi-enclosed structures and are respectively buckled onto the first connecting portion 14 and the second connecting portion 15 from front to back. The first insulating protective member 51 and the second insulating protective member 52 are non-metallic insulating components used to shield the cathode head 1 from stray corrosion on the non-machining area of ​​the workpiece 6, thereby improving the accuracy and surface quality of the workpiece after forming.

[0051] The process of electrochemically machining a workpiece 6 using the sleeve-shaped electrochemical machining device 100 provided in an embodiment of the present invention to produce a rotor blade cascade includes the following steps:

[0052] Step 1: Install the cathode head 1, cathode mounting seat 2, multi-way liquid supply insulation 3, liquid separation and current guide seat 4, first insulating protective member 51, and second insulating protective member 52 in sequence;

[0053] Step 2: Install the cathode as a whole on the machine tool;

[0054] Step 3: Use three jaws to clamp the workpiece 6;

[0055] Step 4: Connect the main electrolyte supply line to the first liquid supply interface of the liquid separation and electrostatic base 4, and connect the enhanced electrolyte supply line to the second liquid supply interface of the liquid separation and electrostatic base 4;

[0056] Step 5: Connect the cathode of the power supply to the liquid separation and charging seat 4, and the anode of the power supply to the workpiece 6;

[0057] Step 6: Adjust cathode head 1 to the processing position;

[0058] Step 7: Start the power supply and electrolyte circulation system;

[0059] Step 8: Start the CNC machine tool program, feed the cathode head 1 and the cathode seat assembly along the blade axis, form an end face gap between the cathode head 1 and the workpiece 6, and under the action of electrolytic corrosion, the electrolytic reaction begins, the anode material of the workpiece is gradually dissolved and removed, and the blade is gradually formed; continue feeding, and the formed blade extends through the first profiling hole 11 into the first profiling opening 31 and the second profiling opening 21 until the single blade processing is completed;

[0060] Step 9: Start the CNC machine tool to run the workpiece rotation program. After the workpiece is in place, repeat step 8 until the entire rotor blade cascade is processed;

[0061] Step 10: After processing, turn off the power, close the electrolyte circulation system, remove the rotor blades and clean them.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0064] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0065] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0066] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0067] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. A sleeve-shaped electrolytic machining device with enhanced liquid supply through a liquid-increasing hole, characterized in that: include: A cathode head, wherein the cathode head is provided with a first profiling hole and a plurality of liquid-increasing holes, wherein the plurality of liquid-increasing holes are arranged around the first profiling hole; a cathode seat assembly, wherein the cathode seat assembly defines a liquid supply channel opposite to and extending through the first profiling hole, at least a portion of the liquid supply channel being a profiling structure corresponding to the first profiling hole, the cathode seat assembly further defining a liquid increase channel opposite to and extending through the liquid increase hole, the cathode seat assembly comprising a cathode mounting seat and a multi-way liquid supply insulating member, the cathode head being mounted on the front end of the cathode mounting seat, the multi-way liquid supply insulating member being clamped between the cathode mounting seat and the cathode head, the multi-way liquid supply insulating member being provided with a first liquid increase port, the first liquid increase port being connected to the plurality of liquid increase holes, the cathode mounting seat being provided with a second liquid increase port, the second liquid increase port being connected to the first liquid increase port; A liquid supply component, which is used to provide electrolyte to the liquid supply channel and the liquid increasing channel respectively. The liquid supply component includes a liquid separation and charging seat, which is connected to the negative pole of the power supply. The liquid separation and charging seat is located on the rear side of the cathode seat assembly and is connected thereto. The liquid separation and charging seat has a first guide groove connected to the liquid supply channel and a second guide groove connected to the liquid increasing channel. The liquid separation and charging seat has a first liquid supply interface and a second liquid supply interface. The first liquid supply interface is connected to the first guide groove, and the second liquid supply interface is connected to the second guide groove.

2. The sleeve-type electrolytic machining device with enhanced liquid supply through the liquid-increasing hole according to claim 1, characterized in that: The multi-channel liquid supply insulating member is provided with a first profiling opening, and the first profiling opening corresponds to and is connected to the first profiling hole.

3. The sleeve-type electrolytic machining device with enhanced liquid supply through the liquid-increasing hole according to claim 2, characterized in that: The cathode mounting seat is provided with a second contoured opening, and the second contoured opening corresponds to and is connected to the first contoured opening.

4. The sleeve-type electrolytic machining device with enhanced liquid supply through the liquid-increasing hole according to claim 1, characterized in that: The plurality of liquid-increasing holes are respectively located on both sides of the first contoured hole.

5. The sleeve-type electrolytic machining device with enhanced liquid supply through the liquid-increasing hole according to claim 1, characterized in that: The cathode head includes a cathode sheet, a first connecting part and a second connecting part. The first contoured hole and the liquid-increasing hole are both provided on the cathode sheet. The first connecting part and the second connecting part are located on both sides of the cathode sheet for connecting to the cathode seat assembly. The sleeve-shaped electrolytic machining device also includes two insulating protective parts, which are respectively provided on the front side of the first connecting part and the front side of the second connecting part.

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