CN115502496A - Sleeve-shaped electrolytic machining device for enhancing liquid supply through liquid-increasing holes - Google Patents

Abstract

The invention discloses a sleeve-shaped electrolytic processing device for enhancing liquid supply through liquid increasing holes, which comprises a cathode head, a cathode seat assembly and a liquid supply assembly. The hole is arranged around the first profiling hole; the cathode seat assembly defines a liquid supply channel that is opposite to and penetrates the first profiling hole, at least a part of the liquid supply channel is a profiling structure corresponding to the first profiling hole, and the cathode seat assembly A liquid-increasing channel opposite to and connected with the liquid-increasing hole is also defined; the liquid-supply assembly is used to provide electrolyte to the liquid-supply channel and the liquid-increasing channel. The multi-channel liquid supply method is adopted, and the design of the liquid increasing hole is designed to supplement the liquid supply to the low-velocity area of the flow field in the processing area, which improves the uniformity and stability of the flow field and helps to realize high-speed sleeve-shaped electrolytic machining of parts. In addition, the separation of the main road and the liquid-increasing road can realize the independent adjustment of the main road and the liquid-increasing road, improve the flexibility of the pressure adjustment of the liquid supply, and further strengthen the improvement effect of the liquid supply on the flow field.

Description

Sleeve-shaped electrolytic machining device for enhancing liquid supply through liquid-increasing holes

technical field

The invention relates to the technical field of electrolysis, in particular to a sleeve-shaped electrolytic processing device for enhancing liquid supply through a liquid-increasing hole.

Background technique

The rotor cascade is a key part of the aeroengine turbopump. It is composed of blades and discs. It is an integral component and is mostly made of difficult-to-cut materials such as high-temperature alloys, titanium alloys, and high-strength stainless steel. The cascade has a small aspect ratio, dense arrangement, small gaps between blades, and high profile accuracy and position accuracy requirements, so the manufacturing process is difficult.

Sleeve-shaped electrolytic machining is a special processing technology based on the principle of electrochemical anodic dissolution to realize material erosion. During the processing 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 is gradually dissolved to realize the processing of the workpiece. forming. The sleeve-shaped electrolytic machining method has the advantages of high processing efficiency, no loss of tool electrodes, no cutting stress, etc., and can realize efficient processing and molding of difficult-to-cut materials, especially for the realization of high-efficiency, low-cost, and batch manufacturing of difficult-to-cut materials. . However, the sleeve-shaped electrolytic machining device and method in the related art still have problems in the field of sleeve-shaped electrolytic machining of the cascade, such as the uniformity of the flow field of the electrolyte in the processing area, poor stability, and inflexible water pressure adjustment, which affect the performance of the cascade. ECM efficiency and machining quality.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the embodiment of the present invention proposes a sleeve-shaped electrolytic machining device in which liquid-increasing holes strengthen liquid supply, so as to realize high-efficiency electrolytic machining of rotor blade cascades.

The sleeve-shaped electrolytic processing device for strengthening the liquid supply through the liquid-increasing hole of the embodiment of the present invention includes a cathode head, and the cathode head is provided with a first profiling hole and a number of liquid-increasing holes, and several of the liquid-increasing holes surround the first hole. A profiling hole is set; the cathode seat assembly defines a liquid supply channel that is opposite to and passes through the first profiling hole, at least a part of the liquid supply channel is in line with the first profiling hole Corresponding profiling structure, the cathode seat assembly also defines a liquid increasing channel that is opposite to and penetrates the liquid increasing hole; a liquid supply component is used to supply the liquid supply channel and the liquid increasing channel The channels provide electrolyte.

The sleeve-shaped electrolytic processing device provided by the embodiment of the present invention adopts a multi-channel liquid supply mode, and the design of the liquid-increasing hole on the cathode head provides supplementary liquid supply to the low-velocity area of the flow field in the processing area, improving the flow field The uniformity and stability of the parts are helpful to realize the high-speed sleeve-shaped electrolytic machining of parts. In addition, the liquid supply component supplies liquid to the liquid supply channel and the liquid increase channel separately, realizing the separation of the main circuit and the liquid increase channel, and can separately adjust the main channel and the liquid increase channel, which improves the flexibility of the liquid supply pressure adjustment and further strengthens the In order to enhance the improvement effect of the liquid supply on the flow field.

Optionally, the cathode seat assembly includes a cathode mounting base and a multi-channel liquid supply insulator, the cathode head is installed on the front end of the cathode mounting base, and the multi-channel liquid supply insulator is clamped on the cathode mounting between the seat and the cathode tip.

Optionally, the multi-channel liquid supply insulator is provided with a first contoured opening, and the first contoured opening corresponds to and connects with the first contoured hole.

Optionally, the cathode mounting seat is provided with a second shaped opening, and the second shaped opening corresponds to and connects with the first shaped opening.

Optionally, the multi-channel liquid supply insulator is provided with a first liquid increase port, and the first liquid increase port is connected to the plurality of liquid increase holes.

Optionally, the cathode mounting base is provided with a second liquid increasing port, and the second liquid increasing port is connected to the first liquid increasing port.

Optionally, the liquid supply assembly includes a liquid separation lead base, the liquid separation lead base is connected to the negative pole of the power supply, and the liquid separation lead base is located at the rear side of the cathode base assembly and connected thereto, so The liquid distribution lead base has a first diversion groove communicated with the liquid supply channel and a second diversion groove communicated with the liquid increasing channel.

Optionally, the liquid separation lead base has a first liquid supply interface and a second liquid supply interface, the first liquid supply interface communicates with the first diversion groove, and the second liquid supply interface communicates with the The second diversion groove is connected.

Optionally, several of the liquid-increasing holes are respectively located on both sides of the first profiling hole.

Optionally, the cathode head includes a cathode sheet, a first connecting portion and a second connecting portion, the first profiling hole and the liquid increasing hole are both arranged on the cathode sheet, the first connecting portion and the The second connection part is located on both sides of the cathode sheet for connecting with the cathode seat assembly. The sleeve-type electrolytic processing device also includes two insulating protection parts, and the two insulation protection parts are respectively arranged on the The front side of the first connection part and the front side of the second connection part.

Description of drawings

Fig. 1 is a schematic structural diagram of a sleeve-shaped electrolytic machining device provided by an embodiment of the present invention.

Fig. 2 is an exploded schematic diagram of a sleeve-shaped electrolytic processing device provided by an embodiment of the present invention.

Fig. 3 is a schematic diagram of the electrolyte flow path of the sleeve-shaped electrolytic machining device provided by the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a cathode head provided by an embodiment of the present invention.

Reference signs:

Sleeve type electrolytic processing device 100,

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

Cathode mount 2, the second profiling opening 21, the second liquid increasing port 22,

Multi-channel liquid supply insulator 3, first profiling opening 31, first liquid increasing port 32,

The liquid-distributing lead seat 4, the first diversion groove 41, the second diversion groove 42,

The first insulation protection part 51, the second insulation protection part 52,

Artifact 6.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The sleeve-shaped electrolytic machining device 100 provided by the embodiment of the present invention for enhancing liquid supply through the liquid-increasing hole is described below with reference to FIGS. 1-2 . The sleeve-shaped electrolytic processing device 100 includes: a cathode head 1, a cathode seat assembly and a liquid supply assembly.

The cathode head 1 is provided with a first profiling hole 11 and several liquid increasing holes 12 , and several liquid increasing holes 12 are arranged around the first profiling hole 11 . The cathode head 1 is connected to the cathode holder assembly, and the cathode holder assembly defines a liquid supply channel 20 that is opposite to and penetrates the first profiling hole 11, at least a part of the liquid supply channel 20 is a profiling structure corresponding to the first profiling hole 11 , that is, at least a part of the liquid supply channel 20 is a profiling section. The cathode seat assembly also defines a liquid increasing channel 30 opposite to and passing through the liquid increasing hole 12 . The liquid supply assembly is used to provide electrolyte to the liquid supply channel 20 and the liquid increasing channel 30 .

As shown in Figure 1, the workpiece 6 is located on the front side of the cathode head 1, and the electrolyte in the liquid supply channel 20 flows forward as the main path electrolyte, and enters the processing area through the first profiling hole 11 on the cathode head 1. The workpiece 6 is electrolytically machined and finally flows out from the edge of the machining area. The electrolyte in the liquid-increasing channel 30 flows forward as the liquid-increasing path electrolyte, and enters the low-flow rate area of the processing area through a number of liquid-increasing holes 12 on the cathode head 1, and replenishes the liquid supply to this area and participates in the electrolytic reaction. Eventually flow out from the edge of the processing area.

The sleeve-shaped electrolytic processing device provided by the embodiment of the present invention adopts a multi-channel liquid supply mode, and the design of the liquid-increasing hole on the cathode head provides supplementary liquid supply to the low-velocity area of the flow field in the processing area, improving the flow field The uniformity and stability of the parts are helpful to realize the high-speed sleeve-shaped electrolytic machining of parts. In addition, the liquid supply component supplies liquid to the liquid supply channel and the liquid increase channel separately, realizing the separation of the main circuit and the liquid increase channel, and can separately adjust the main channel and the liquid increase channel, which improves the flexibility of the liquid supply pressure adjustment and further strengthens the In order to enhance the improvement effect of the liquid supply on the flow field.

The sleeve-shaped electrolytic machining device provided by the embodiment of the present invention with enhanced liquid supply through the liquid-increasing hole is especially suitable for electrolytic machining of blade-like parts (such as rotor cascades) with densely arranged blades and small gaps between blades.

The structural features of the sleeve-shaped electrolytic machining device 100 in a specific embodiment provided by the present invention will be further described below with reference to FIGS. 1-4 .

As shown in FIG. 1 , the workpiece 6 is located on the front side of the sleeve-shaped electrolytic machining device 100 , opposite to the cathode head 1 . The workpiece 6 is electrolytically machined to form a cascade. In some embodiments, the sleeve-type electrolytic machining device 100 further includes a workpiece clamp (not shown in the figure) for clamping the workpiece 6 .

In this embodiment, the workpiece 6 is fixedly arranged, and the cathode head 1 and the cathode seat assembly are close to or away from the workpiece 6 in the front-rear direction. When the workpiece 6 is processed, the cathode head 1 and the cathode seat assembly gradually approach the workpiece holder 1 along the front and back direction, so that the workpiece 6 gradually extends into the first profiling hole 11 on the cathode head 1, and continues to feed. Under the action of corrosion, the workpiece 6, as the anode material, gradually dissolves and forms a shaped blade, and the feeding continues, and the shaped blade gradually extends into the profiling section of the liquid supply channel 20.

As shown in Figure 1 and Figure 2, the cathode seat assembly includes a cathode mounting base 2 and a multi-channel liquid supply insulator 3, the cathode head 1 is installed on the front end of the cathode mounting base 2, and the multi-channel liquid supply insulator 3 is sandwiched between the cathode installation Between seat 2 and cathode head 1. In the embodiment shown in Fig. 1, the cathode mounting base 2 is a frame structure, the multi-channel liquid supply insulator 3 is located in the frame structure of the cathode mounting base 2, and its front end is closely attached to the rear end of the cathode head 1, The rear end fits closely with the cathode mount 2 . In this embodiment, the cathode mounting base 2 and the multi-channel liquid supply insulator 3 jointly define a liquid supply channel 20 and a liquid increasing channel 30 .

Specifically, as shown in FIG. 2 and FIG. 3 , the multi-channel liquid supply insulator 3 is provided with a first profiling opening 31, and the first profiling opening 31 corresponds to and connects with the first profiling hole 11 in the front-rear direction, That is, the front end of the first shaping opening 31 is in contact with the rear end of the first shaping hole 11 . The first profiling opening 31 of the multi-channel liquid supply insulator 3 corresponds to the first profiling hole 11 as the profiling section of the liquid supply channel 20. During the processing of the workpiece 1, the formed blade can gradually extend into the multi-channel liquid supply Inside the first profiled opening 31 of the insulator 3 . The cathode mounting base 2 abuts against the rear end surface of the multi-channel liquid supply insulator 3 , and is provided with a liquid supply opening opposite to and connected to the rear end of the first profiled opening 31 .

As an example, as shown in FIG. 2 , the liquid supply opening on the cathode mounting base 2 is a second profiled opening 21, and the front end of the second profiled opening 21 corresponds to and touches the rear end of the first profiled opening 31. , that is, the cross section of the second profiling opening 21 is a profiling structure similar to the cross section of the first profiling opening 31 , and in this embodiment, the liquid supply channel 20 as a whole is a profiling structure. The first profiling hole 11, the first profiling opening 31, and the second profiling opening 21 correspond to and connect in sequence from front to back. The profiling opening 31 and the second profiling opening 21 are supported, and the profiling structure supports the formed blade to avoid flutter of the formed blade, which is beneficial to improve the rigidity and vibration of the blade and avoid the deformation of the formed blade , which enhances the stability of the workpiece during electrolytic machining.

As shown in FIG. 2 , the multi-channel liquid supply insulator 3 is provided with a first liquid increasing port 32 , and the first liquid increasing port 32 is connected to several liquid increasing holes 12 . The cathode mounting base 2 is provided with a second liquid increasing port 22 , and the second liquid increasing port 22 is connected to the first liquid increasing port 32 .

Specifically, in this embodiment, as shown in FIG. 3 and FIG. 4 , a plurality of liquid increasing holes 12 on the cathode head 1 are distributed on both sides of the first profiling hole 11 . The multi-channel liquid supply insulator 3 is provided with two first liquid increasing ports 32, and the two first liquid increasing ports 32 are respectively located on both sides of the first profiling opening 31, and one of the first liquid increasing ports 32 is connected to the corresponding side. The multiple liquid increasing holes 12 are opposite to and penetrate through, and the other first liquid increasing port 32 is opposite to and penetrating with the multiple liquid increasing holes 12 on the other side. The cathode mounting base 2 is provided with two second liquid increasing ports 22 , and the front ends of the two second liquid increasing ports 22 communicate with the rear ends of the two first liquid increasing ports 32 in one-to-one correspondence.

Optionally, the liquid-increasing holes 12 are circular holes with a diameter of 0.05-1mm, which are symmetrically distributed on both sides of the first profiling hole 11, and the number and distribution of the liquid-increasing holes 12 are optimally set according to the flow field simulation results Position, so that the electrolyte flowing out from the liquid increasing hole 12 can play the role of replenishing the low flow rate area of the processing area.

As shown in FIG. 3 , both the liquid supply channel 20 and the liquid increasing channel 30 extend along the front-rear direction.

As shown in Figures 1 and 2, the liquid supply assembly includes a liquid-separating lead-in seat 4, which is connected to the negative pole of the power supply, and the liquid-separating lead-in seat 4 is located at the rear side of the cathode mounting seat 2 and connected thereto. The liquid separation lead base 4 supplies power to the cathode head 1 through the cathode mounting base 2 . The liquid-dispensing lead base 4 has a first diversion groove 41 communicating with the liquid supply channel 20 and a second diversion groove 42 communicating with the liquid increasing channel 30 .

The liquid-distributing lead base 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 communicates with the first diversion groove 41, and the second liquid supply interface The liquid interface communicates with the second diversion groove 42 .

The electrolyte in the main circuit enters the first diversion groove 41 through the first liquid supply interface, flows out from the first profiling hole 11 through the liquid supply channel 20, enters the processing area to participate in electrolytic processing, and finally flows out from the edge of the processing area. The electrolyte in the liquid increasing circuit enters the second diversion tank 42 through the second liquid supply interface, flows out from the increasing liquid hole 12 through the increasing liquid channel 30, enters the low flow rate area of the processing area, and supplies liquid to this area and participates in the electrolytic reaction , and finally flows out from the edge of the processing area.

As an example, as shown in Fig. 3 and Fig. 4, there is one first flow guide groove 41 of the liquid separation lead base 4, and the outlet of the first flow guide groove 41 is connected with the second profiling opening 21 on the cathode mounting base 2. opposite and connected in the front-back direction. There are two second diversion grooves 42 of the liquid separation lead base 4 , and the outlets of the two second diversion grooves 42 are respectively opposite and connected to the two second liquid increasing ports 22 on the cathode mounting base 2 .

As shown in FIG. 3 and FIG. 4 , the first liquid supply interface of the liquid separation lead base 4 is located at the bottom thereof, the first diversion groove 41 extends from bottom to top, and its outlet is opposite to the inlet of the second profiling opening 21 . The second diversion groove 42 of the liquid-distributing electric seat 4 is a through groove, which runs through the liquid-separating electric seat 4 along the front and rear direction, and the second liquid supply interface of the liquid-separating electric seat 4 is arranged at the back of the liquid-separating electric seat 4 On the side, the second liquid supply interface communicates with the inlets of the two second guide grooves 42 on the liquid separation lead base 4 .

The liquid-separating lead-in seat 4 supplies liquid to the liquid supply channel 20 and the liquid increasing channel 30 respectively through the first diversion groove 41 and the second diversion groove 42, realizing the separation of the main road and the liquid increasing road for liquid supply, so as to supply The liquid supply pressure of the liquid channel 20 and the liquid increasing channel 30 is individually adjusted to realize the flexible adjustment of the liquid supply pressure, strengthen the improvement effect of the enhanced liquid supply on the flow field, and solve the anisotropic flow of the electrolyte in the processing area in the related technology. The problem of poor field uniformity is conducive to the realization of high-efficiency, low-cost, and batch electrolytic machining of rotor cascade parts.

As shown in Figures 2-4, the cathode head 1 specifically includes a cathode sheet 13, a first connecting portion 14 and a second connecting portion 15, the first profiling hole 11 and the liquid increasing hole 12 are all arranged on the cathode sheet 13, the second A connecting portion 14 and a second connecting portion 15 are respectively located on two sides of the cathode piece 13 , and the first connecting portion 14 and the second connecting portion 15 are used for connecting with the cathode mounting base 2 . The sleeve-type electrolytic processing device 100 also includes a first insulating protection member 51 and a second insulating protection member 52. The first insulating protection member 51 is arranged on the front side of the first connecting portion 14, and the second insulating protecting member 52 is arranged on the second connecting portion. the front side of part 15. In this embodiment, both the first insulating protection part 51 and the second insulating protection part 52 are of half-covered structure, and are fastened on the first connecting part 14 and the second connecting part 15 respectively from front to back. The first insulating protection member 51 and the second insulating protection member 52 are non-metallic insulating parts, which are used to shield the stray corrosion of the cathode head 1 on the non-processing area of the workpiece 6, and improve the precision and surface quality of the workpiece after forming.

Using the sleeve-shaped electrolytic machining device 100 provided by the embodiment of the present invention to perform electrolytic machining on the workpiece 6, the process of producing the rotor blade cascade includes the following steps:

Step 1: Install the cathode head 1, the cathode mounting seat 2, the multi-channel liquid supply insulating part 3, the liquid separation lead seat 4, the first insulating protection part 51, and the second insulating protection part 52 in sequence;

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

Step 3: Use three claws to clamp the workpiece 6;

Step 4: Connect the main liquid supply electrolyte pipeline to the first liquid supply interface of the liquid-separating lead base 4, and connect the enhanced liquid supply electrolyte pipeline to the second liquid supply interface of the liquid-separating lead base 4;

Step 5: Connect the cathode of the power supply to the liquid separation lead base 4, and the anode of the power supply to the workpiece 6;

Step 6: Adjust the cathode head 1 to the processing station;

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

Step 8: Start the operation program of the CNC machine tool, the cathode head 1 and the cathode seat assembly are fed along the blade axis, and an end face gap is formed between the cathode head 1 and the workpiece 6. Under the action of electrolytic corrosion, the electrolytic reaction begins, and the anode material of the workpiece gradually dissolves Remove, the blade is gradually formed; continue to feed, the formed blade extends into the first profiling opening 31 and the second profiling opening 21 through the first profiling hole 11, until the processing of a single blade is completed;

Step 9: Start the CNC machine tool to run the workpiece rotation program, and repeat step 8 when in place, until the entire rotor cascade is processed;

Step 10: After processing, turn off the power, close the electrolyte circulation system, remove the rotor blade grid and clean it.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

As used herein, the terms "one embodiment," "some embodiments," "example," "specific examples," or "some examples" mean specific features, structures, materials, or features described in connection with the embodiment or example. A feature is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the above-mentioned embodiments have been shown and described, it can be understood that the above-mentioned embodiments are exemplary, and should not be construed as limitations on the present invention. Changes, modifications, substitutions and variations made by those skilled in the art to the above-mentioned embodiments All within the protection scope of the present invention.

Claims (10)

1. A sleeve-shaped electrolytic machining device for enhancing liquid supply of a liquid increasing hole is characterized by comprising:

the cathode head is provided with a first profiling hole and a plurality of liquid increasing holes, and the liquid increasing holes are arranged around the first profiling hole;

the cathode seat assembly defines a liquid supply channel which is opposite to and communicated with the first contour hole, at least one part of the liquid supply channel is of a contour structure corresponding to the first contour hole, and the cathode seat assembly also defines a liquid increasing channel which is opposite to and communicated with the liquid increasing hole;

and the liquid supply assembly is used for supplying electrolyte to the liquid supply channel and the liquid increasing channel.

2. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 1,

the cathode base assembly comprises a cathode mounting base and a plurality of paths of liquid supply insulating parts, a cathode head is mounted at the front end of the cathode mounting base, and the plurality of paths of liquid supply insulating parts are clamped between the cathode mounting base and the cathode head.

3. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 2,

the multi-path liquid supply insulator is provided with a first profiling opening, and the first profiling opening corresponds to and is connected with the first profiling hole.

4. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 3,

the cathode mounting base is provided with a second profiling opening, and the second profiling opening corresponds to and is connected with the first profiling opening.

5. The sleeve-shaped electrolytic machining device for enhancing the liquid supply through the liquid increasing holes according to any one of claims 2 to 4,

the multi-path liquid supply insulating part is provided with a first liquid increasing port, and the first liquid increasing port is connected with the liquid increasing holes.

6. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 5,

the cathode mounting seat is provided with a second liquid increasing port, and the second liquid increasing port is connected with the first liquid increasing port.

7. The sleeve-shaped electrolytic machining device for enhancing the liquid supply through the liquid increasing holes according to any one of claims 1 to 4,

the liquid supply assembly comprises a liquid separation lead seat, the liquid separation lead seat is connected with a negative electrode of a power supply, the liquid separation lead seat is positioned on the rear side of the cathode seat assembly and connected with the cathode seat assembly, and the liquid separation lead seat is provided with a first guide groove communicated with the liquid supply channel and a second guide groove communicated with the liquid increasing channel.

8. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 7,

the liquid-separating electricity-guiding base is provided with a first liquid supply interface and a second liquid supply interface, the first liquid supply interface is communicated with the first diversion trench, and the second liquid supply interface is communicated with the second diversion trench.

9. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 1,

the liquid increasing holes are respectively positioned on two sides of the first profiling hole.

10. The sleeve-shaped electrolytic machining device for enhancing liquid supply through the liquid increasing holes according to claim 1,

the cathode head comprises a cathode sheet, a first connecting part and a second connecting part, wherein the first profiling hole and the liquid increasing hole are formed in the cathode sheet, the first connecting part and the second connecting part are located on two sides of the cathode sheet and are used for being connected with the cathode base assembly, the sleeve type electrolytic machining device further comprises two insulating protection pieces, and the two insulating protection pieces are arranged on the front side of the first connecting part and the front side of the second connecting part respectively.

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