Flexible electrode having an array-like group slit structure, its deformation control mechanism and application

Abstract

The flexible electrode is a hollow metal tube having a circular or rectangular cross-section, with an array of equidistant group slit structures machined into its side walls. The electrolyte flows in from both ends of the tubular electrode and flows out through the group slit structure. The deformation control mechanism consists of an electrode chuck (V-1), a long connecting rod (V-4), a slider (V-6), a guide rail (V-5), another slider (V-6), a connecting seat (V-7), and a right-angle connecting rod (V-8). It has multiple rotational and translational pairs (C), the entire structure is symmetrical, and it is mounted on a three-axis linked machine tool. The bending deformation of the flexible electrode is achieved by the coordination of the rotational and translational pairs. Applications of the flexible electrode and deformation control mechanism in electrolytic machining. The flexible electrode has excellent flexibility, can be deformed and recover autonomously, and is reusable. In addition, the deformation control mechanism can achieve bending of the flexible electrode with a large amount of deformation.

Description

[Technical Field]

[0001] This invention relates to a flexible electrode having an array-like group slit structure, its deformation control mechanism, and its applications, and belongs to the field of electrolytic machining. [Background technology]

[0002] Electrolytic machining is a non-contact special machining method that removes material based on the electrochemical dissolution principle of the anode. Compared to conventional machining methods, it has advantages such as no tool wear, high material removal rate, no cutting resistance, and high surface quality. For these reasons, it is widely applied to the machining of aircraft engine parts, especially components such as wings and blisks, and has become one of the mainstream machining processes.

[0003] The patent "Electrolytic Machining Method for Integrated Blisk" (application number 201811128151.X, applicant: Aerospace Engineering Research Institute of China, inventors: Huang Mingtao, Zhang Mingqi, Cheng Xiaoyuan, Fu Junying) proposes machining the blade row channel by radially feeding it using a tool cathode, and then rotating the integrated blisk clockwise and counterclockwise to bring it closer to the tool cathode for electrolytic finishing.

[0004] The patent "Double-wing trepanning electrolytic processing apparatus and processing method thereof" (application number 202010425084.9, applicant: Nanjing University of Aeronautics and Astronautics, inventors: Zhu Dong, Zhang Xiaobo, Lin Jiahao) describes the design of two integrated tool cathodes with different characteristics for an integrated member having large and small wings, and how to achieve rapid sleeve processing of the double wing by feeding the tool cathode axially. The dual-flow fluid equalization supply flow field is designed to ensure that there is sufficient electrolyte within the processing area of ​​the double wing. An insulating layer is coated on the leading edge surface of the cathode, and an insulating block is added to the trailing edge to isolate the non-processing area of ​​the cathode from the workpiece and protect the base of the workpiece disc and the tail edge of the wing.

[0005] The patent "Electrolytic Machining Method for Integrated Blisk with Double-Sided Composite Two Cathodes and Segmented Electrical Control" (Application No. 202210306217.X, Applicant: Nanjing University of Aeronautics and Astronautics, Inventors: Xu Zhengyang, Shen Zhenyu, Liu Jia, Zhu Dong) describes a method for sequentially completing the machining of the entire mold surface of a blade by stepwise electrolysis within the same machining cycle, eliminating the need to individually design and replace cathodes and jigs. This avoids the drawbacks of conventional electrolytic machining, which require separate processing of pretreatment of integrated blisk channels and mold surface finishing, thereby improving machining efficiency and ensuring machining quality and precision.

[0006] In the patent "Electrolytic Finishing and Forming Apparatus for Integrated Brisk Blades and Method for Processing and Forming Integrated Brisk Blades thereof" (Application No. 201310590896.9, Applicant: Yancheng Institute of Technology, Inventors: Wang Fuyuan, Xu Jiawen, Zhao Jianshe), the main electrolyte enters the guided flow region from the main flow slot, passes through the guided flow region and enters the processing gap, while the remaining electrolyte enters the fluid supply cavity from the fluid supply discharge slot, supplying fluid to the processing gap from above and forming a stable processing flow field together with the main electrolyte.

[0007] The patent "Multi-stage brisk multi-blade sleeve-type electrolytic machining mechanism and method" (application number 202310427704.6, applicant: Nanjing University of Aeronautics and Astronautics, inventors: Zhu Dong, Wang Penghui, Zhu Di, Liu Jia) describes a method that achieves simultaneous electrolytic machining of two-stage blades with different characteristics by adjusting parameters such as the inner contour of the cathode, the inner contour of the insulating water jagger, the mounting position of the mounting rod on the disk, the position of the radial limiting groove, and the radial length, based on the characteristics of the blades.

[0008] Dynamic deformation electrolytic machining of flexible electrodes is a novel method used for machining complex mold surface components. In this method, a flexible electrode with a simple shape is used as the tool cathode, with its sidewall as the machining surface. As it is fed along the cutting direction, the flexible electrode is subjected to a load, causing dynamic deformation, thereby completing the machining of the complex mold surface.

[0009] The patent "Method for Dynamically Deforming Electrolytic Machining of Flexible Electrodes and its Application" (Application No. 2021126103W, Applicant: Nanjing University of Aeronautics and Astronautics, Inventors: Zhu Di, Xu Zhengyang, Liu Lin) describes how a simple electrode shape can be used to machine complex mold surfaces, improving the efficiency of electrolytic machining, ensuring machining accuracy, and is applicable to the machining of integrated blisk components.

[0010] The patent "Two-electrode electrolytic machining apparatus and method for dynamic deformation of flexible electrodes" (application number 202210499138.5, applicant: Nanjing University of Aeronautics and Astronautics, inventors: Xu Zhengyang and Liu Lin) describes a method that, during machining, adjusts and controls the feed rate of the load application axis based on the curvature change characteristics of the machining die surface, and simultaneously uses a mechanism to convert rotational motion into electrode translation, which is then combined with the rotational motion of the workpiece to achieve two-electrode electrolytic machining for dynamic deformation of flexible electrodes.

[0011] The patent "Apparatus and Method for Dynamically Deformed Electrolytic Processing of Flexible Electrodes in a Multi-Winged Integrated Member" (Application No. 202210497135.8, Applicant: Nanjing University of Aeronautics and Astronautics, Inventors: Xu Zhengyang and Liu Lin) describes a method that simplifies the electrode design process, enables simultaneous processing of multiple electrodes, and significantly improves processing efficiency. Furthermore, the number and distribution position of the flexible electrodes can be adjusted according to the actual model number of the integrated blisk to meet different processing requirements.

[0012] The patent "Electrolytic Machining Method and Apparatus for Autonomously Controlled Deformation of Shape Memory Alloy Electrodes" (Application No. 202211407585.X, Applicant: Nanjing University of Aeronautics and Astronautics, Inventors: Xu Zhengyang, Liu Lin, Zhu Di) describes a method for electrolytic machining using a shape memory alloy as the electrode material, with the initial mold surface of a component used as the electrode shape. Through heat treatment, the electrode can adapt to different component mold surface shapes at different temperatures. During electrolytic machining, the electrode is connected to a floating clamp, and the temperature change of the electrolyte is adjusted and controlled by the equipment to generate appropriate deformation at different positions. After machining is complete, the shape is restored by heating the electrode, utilizing the shape memory effect of the material.

[0013] Flexible electrodes are extremely important in dynamic deformation electrolytic machining, and their structural and material properties have a significant impact on the smooth progress of the electrolytic machining process. This invention proposes a flexible electrode having an array-like group slit structure and its deformation mechanism. The designed flexible electrode has excellent flexibility, can deform and recover autonomously, and is reusable. [Overview of the project] [Problems that the invention aims to solve]

[0014] The objective of the present invention is to provide a flexible electrode having an array-like group slit structure that can autonomously recover after deformation, and at the same time, to realize dynamic deformation electrolytic processing of the flexible electrode in cooperation with its deformation control mechanism. [Means for solving the problem]

[0015] Specifically, the present invention relates to a flexible electrode having an array-like group slit structure, A hollow metal tube having a circular or square cross-section is used as a flexible electrode, and the structural parameters of the hollow metal tube include the diameter D of the circular cross-section or the side length D of the rectangular cross-section, and the wall thickness Δ of the metal tube, and these parameters are determined by comprehensively considering the flow rate of the electrolyte based on the width of the channel of the processed member, and the hollow metal tube has an array of equidistant group slit structures processed into its side walls, and the group slit structures are arranged in an array at equidistant distances on both the left and right sides of the hollow metal tube, that is, the distance between adjacent slit structures on the left side is d1, the distance between adjacent slit structures on the right side is d1, the distance between the left slit structure and the right slit structure is d1 / 2, and the slit width d2 is always smaller than the slit spacing d1, and the flexibility of the electrode The control and adjustment of rigidity can be achieved by adjusting the structural parameters of the group slit structure, thereby allowing the flexible electrode to autonomously recover after deformation and be reused. Assuming that the diameter D of the circular cross-section or the side length D of the rectangular cross-section and the wall thickness Δ of the metal tube are constant, the slit length l and slit width d2 are negatively correlated with the rigidity of the electrode and positively correlated with the flexibility of the electrode, and the slit spacing d1 is positively correlated with the rigidity of the electrode and negatively correlated with the flexibility of the electrode. In the electrolytic machining process, both ends of the flexible electrode are subjected to load and deform, the electrolyte flows in from both ends of the electrode, flows through the group slit structure into the machining gap, and the material removal is completed. This provides a flexible electrode solution having an array-shaped group slit structure.

[0016] Furthermore, this application relates to a deformation control mechanism applied to the above-mentioned flexible electrode, There are a total of two sets of deformation control mechanisms, which have the same structure and are installed symmetrically on the left and right sides. These mechanisms consist of an electrode chuck (V-1), a guide tube (V-2), a liquid delivery tube (V-3), a long connecting rod (V-4), a guide rail (V-5), a slider (V-6), a connecting seat (V-7), and a right-angle connecting rod (V-8). One end of the long connecting rod (V-4) is fitted and connected to one end of the right-angle connecting rod (V-8) to form a rotational pair (A) in the Z direction, and the other end of the right-angle connecting rod (V-8) is fitted and connected to the connecting seat (V-7) to form a rotational pair (B) in the Z direction. The connecting seat (V-7) is fixedly attached to the slider (V-6), and the slider (V-6) is fitted and connected to the guide rail (V-5) to form a translational pair (C) in the Y direction. This provides a deformation control mechanism applicable to the above-mentioned flexible electrode.

[0017] Regarding the application of the above-mentioned flexible electrode and deformation control mechanism in electrolytic machining, specifically, The flexible electrode (III) is held and fixed by two electrode chucks (V-1) of the deformation control mechanism (V), the workpiece (IV) is attached to the workpiece connection seat (II), the workpiece connection seat (II) is connected to the Z-axis (I-2) of the machine tool, the two long connecting rods (V-4) of the deformation control mechanism (V) are attached to the X-axis (I-1) and the Y-axis (I-3) of the machine tool, and the two guide rails (V-5) of the deformation control mechanism (V) are attached to the workbench (VI) of the machine tool. During electrolytic machining, the flexible electrode (III) is connected to the negative terminal of the power supply, the workpiece (IV) is connected to the positive terminal of the power supply, the electrolyte flows into the machining area through the electrolyte supply pipe (V-3), and based on the curvature characteristics of the machining surface, the X-axis (I-1) and Y-axis (I-3) of the machine tool drive the deformation control mechanism (V) to generate corresponding displacements. Through the coordination of the rotational pair (A), rotational pair (B), and translational pair (C), bending deformation of the flexible electrode (III) is achieved. Simultaneously, in combination with the displacement of the Z-axis (I-2) of the machine tool, the workpiece (IV) is moved upward, ultimately achieving electrolytic machining of complex surface types. [Effects of the Invention]

[0018] Compared with the prior art, the solution provided by the embodiments of the present application has the following advantages.

[0019] (1) A flexible electrode having an array-like group slit structure is provided. A hollow metal tube having a circular cross-section or a rectangular cross-section is used as the flexible electrode, and an equidistant group slit structure arranged in an array is processed on its side wall. By adjusting the structural parameters of the group slit structure, the flexibility and rigidity of the electrode are adjusted and controlled, so that the flexible electrode can recover autonomously after deformation and can be reused.

[0020] (2) A deformation control mechanism for the flexible electrode is designed. The deformation control mechanism is composed of an electrode chuck, a connecting rod, a slider, a guide rail, etc., has a plurality of rotational pairs and translational pairs, and the whole structure is symmetric about the left and right. By connecting the rotational pair and the translational pair, the bending deformation of the flexible electrode is realized. With this mechanism, bending of the flexible electrode with a large deformation amount can be realized.

[0021] (3) The cathode is easy to manufacture and the processing cost can be reduced. By using a flexible electrode having an array-like group slit structure as a tool cathode, there is no need to select a metal material such as an elastic alloy with high cost. Due to the design of the array-like group slit structure, the flexibility of ordinary metal materials can be greatly improved.

Brief Description of the Drawings

[0022] While referring to the accompanying drawings, a more detailed description of the embodiments of the present application given as the following examples will be described. [Figure 1] It is a schematic diagram of a flexible electrode having a group slit structure. [Figure 2] It is a schematic diagram of the attachment of each member. [Figure 3] It is a schematic diagram of the deformation control mechanism. [Figure 4] It is a schematic diagram of the deformation of the deformation control mechanism. [Figure 5] It is a schematic diagram of an annular cross-section and an arc-shaped cross-section. [Figure 6] This is a schematic diagram of the stress distribution. [Modes for carrying out the invention]

[0023] The specific implementation process of the present invention will be described in detail below with reference to the drawings.

[0024] As shown in Figure 1, a hollow metal tube having a circular or rectangular cross-section is used as a flexible electrode. The structural parameters of the hollow metal tube include the diameter D of the circular cross-section or the side length D of the rectangular cross-section, and the wall thickness Δ of the metal tube. These parameters are determined by comprehensively considering the flow rate of the electrolyte based on the width of the channel of the processed member. The hollow metal tube has an array of equidistant group slit structures processed into its side walls. The group slit structures are arranged in an array at equidistant distances on both the left and right sides of the hollow metal tube, that is, the distance between adjacent slit structures on the left is d1, the distance between adjacent slit structures on the right is d1, the distance between the left slit structure and the right slit structure is d1 / 2, and the slit width d2 is always d1. The slit spacing d1 is smaller than the slit spacing d1. The flexibility and rigidity of the electrode can be controlled and adjusted by adjusting the structural parameters of the group slit structure, thereby allowing the flexible electrode to autonomously recover after deformation and be reused. Assuming that the diameter D of the circular cross-section or the side length D of the rectangular cross-section and the wall thickness Δ of the metal tube are constant, the slit length l and slit width d2 are negatively correlated with the rigidity of the electrode and positively correlated with the flexibility of the electrode. The slit spacing d1 is positively correlated with the rigidity of the electrode and negatively correlated with the flexibility of the electrode. In the electrolytic machining process, both ends of the flexible electrode are subjected to load and deform, the electrolyte flows in from both ends of the electrode, flows through the group slit structure into the machining gap, and the material removal is completed.

[0025] As shown in Figures 2 and 3, the deformation control mechanism applied to the above flexible electrode is as follows: There are a total of two sets of deformation control mechanisms, which have the same structure and are installed symmetrically on the left and right sides. These consist of an electrode chuck V-1, a guide pipe V-2, a liquid delivery pipe V-3, a long connecting rod V-4, a guide rail V-5, a slider V-6, a connector V-7, and a right-angle connecting rod V-8. One end of the long connecting rod V-4 is fitted and connected to one end of the right-angle connecting rod V-8 to form a rotational pair A in the Z direction, and the other end of the right-angle connecting rod V-8 is fitted and connected to the connecting seat V-7 to form a rotational pair B in the Z direction. The connecting seat V-7 is fixedly attached to the slider V-6, and the slider V-6 is fitted and connected to the guide rail V-5 to form a translational pair C in the Y direction.

[0026] The above-mentioned flexible electrode and deformation control mechanism are applied to electrolytic machining, The flexible electrode III is clamped and fixed by two electrode chucks V-1 of the deformation control mechanism V, the workpiece IV is attached to the workpiece connection seat II, the workpiece connection seat II is connected to the Z axis I-2 of the machine tool, the two long connecting rods V-4 of the deformation control desk V are attached to the X axis I-1 and the Y axis I-3 of the machine tool, and the two guide rails V-5 of the deformation control mechanism V are attached to the workbench VI of the machine tool.

[0027] The process for achieving the dynamic deformation electrolytic machining of the flexible electrode having the group slit structure of the embodiment requires the following steps.

[0028] Step 1: Complete the installation and positioning of the flexible electrode III, workpiece IV, and deformation control mechanism V. Step 2: Connect the flexible electrode III to the cathode of the power supply, connect the workpiece to the positive electrode of the power supply, and connect the electrolyte supply line to the electrolyte supply line of the deformation control mechanism V. Step 3: The electrolyte is introduced, the electrolytic machining power is turned on, and the electrolyte flows into the machining area through the liquid supply pipe V-3. Based on the curvature characteristics of the machining surface, the X-axis I-1 and Y-axis I-3 of the machine tool drive the deformation control mechanism V to generate corresponding displacements. Through the coordination of the rotational pair A, rotational pair B, and translational pair C, the bending deformation of the flexible electrode III is achieved. As shown in Figure 4, this is simultaneously combined with the displacement of the Z-axis I-2 of the machine tool to move the workpiece IV upwards, ultimately achieving electrolytic machining of the complex surface. Step 4: Once machining is complete, turn off the power to the electrolytic machine, stop supplying the electrolyte, move the X-axis I-1 and Y-axis I-3 of the machine tool in opposite directions to deform and restore the flexible electrode III, and prepare for the next machining operation.

[0029] Furthermore, the performance of the flexible electrode having an array-like group slit structure will be explained in more detail as follows.

[0030] This study compares a typical circular cross-section tubular electrode with a circular cross-section tubular electrode having an array-like group slit structure. Using theories such as material mechanics, the two types of electrodes are analyzed and calculated to verify the rationality of the designed array-like group slit structure.

[0031] Step 1: Determine the maximum stress during bending deformation of the flexible electrode. The calculation process is as follows.

[0032] Step 1-1, regarding bidirectional bending of the flexible electrode, the following assumptions are made: (1) Apply a pair of equal-sized but opposite-direction couples within the longitudinal plane of symmetry of the flexible electrode to purely bend the flexible electrode. (2) The cross-section of the flexible electrode has only normal stress and no shear stress. (3) There is no normal stress in the longitudinal direction of the flexible electrode.

[0033] Step 1-2: Based on the above assumptions, the internal strain ε of any longitudinal line segment can be obtained.

number

[0034] Steps 1-3: Since there is no normal stress between the longitudinal line segments, each segment is subjected to unidirectional tension or compression. If the stress is less than the proportional limit, according to Hooke's Law, the normal stress δ of any longitudinal line segment is given by the following equation:

number

[0035] Steps 1-4: Force analysis is performed on the cross-section of the flexible electrode to obtain the bending moment M.

number

[0036] Steps 1-5: By combining the above formulas, the bending normal stress δ in the cross-section of the flexible electrode during pure bending can be obtained.

number

[0037] Steps 1-6: Since it is a pure bending, the moment M is the same for each cross section, and therefore the maximum normal stress for each cross section should occur at the point furthest from the neutral axis.

number

[0038] Step 2: Determine the cross-sectional moment of inertia of the two types of electrodes. The calculation process is as follows.

[0039] Step 2-1, In the case of a tubular electrode with a circular cross-section, its cross-sectional shape is annular, and therefore its moment of inertia is I Z teeth

number

[0040] Step 2-2, In the case of a circular cross-section tubular electrode having an array-like group slit structure, the cross-sectional shape along the axis of the electrode is a shape in which rings and arcs are arranged alternately, and the arc-shaped cross-section can be considered as a combination of two cross-sections, and the calculation process for its cross-sectional moment of inertia is as follows: Section 1: Static moment S Z1 :

number

number

number

number

number

number

[0041] Step 3: Determine the maximum stress distribution of the two types of electrodes. The calculation process is as follows.

[0042] Step 3-1. In the case of a circular cross-section tubular electrode, all cross-sections along the length direction of the electrode are annular. Therefore, in the process of deformation, stress concentration may occur at each cross-section. For the annular cross-section, y max = R. The maximum tensile stress and compressive stress of the annular cross-section are [Number] is

[0043] Step 3-2. In the case of a tubular electrode with an array of group slit structures, due to the existence of the array of group slit structures, stress concentration is likely to occur at the arc-shaped cross-section. For the arc-shaped cross-section, y max = R - YC The maximum tensile and compressive stresses of the arc-shaped cross section are:

number

[0044] Step 3-3: Furthermore, while the maximum tensile and compressive stresses in the annular cross-section appear linearly along the length of the electrode, the maximum tensile and compressive stresses in the arc-shaped cross-section appear as spaced line segments along the length of the electrode. At the same radius of curvature, the above results indicate that the designed array-like group slit structure can reduce the maximum normal stress and avoid a concentrated distribution of the maximum normal stress.

[0045] As described above, during the deformation process, the array-like group slit structure reduces stress while simultaneously avoiding stress concentration distribution. Therefore, flexible electrodes having an array-like group slit structure exhibit superior performance. [Explanation of symbols]

[0046] I-1 X-axis of a machine tool I-2 Z-axis of machine tools I-3 Y-axis of a machine tool II Workpiece Connection Seat III Flexible electrodes IV Work V deformation control mechanism V-1 Electrode Chuck V-2 Direction tube V-3 Fluid delivery pipe V-4 long connecting rod V-5 Guide Rail V-6 Slider V-7 connection base V-8 right angle connecting rod VI. Workbench for machine tools A Rotational opposite B Rotational opposite C translational couple

Claims

1. A flexible electrode having an array-like group slit structure, A hollow metal tube having a circular or square cross-section is used as a flexible electrode. The structural parameters of a hollow metal tube include the diameter D of a circular cross-section or the side length D of a rectangular cross-section, and the wall thickness Δ of the metal tube. These parameters are determined by comprehensively considering the flow rate of the electrolyte based on the width of the channel of the processed member. The hollow metal tube has an array of equidistant group slit structures processed into its side walls, and the group slit structures are arranged in an array at equidistant intervals on both the left and right sides of the hollow metal tube, that is, the distance between adjacent slit structures on the left side is d1, the distance between adjacent slit structures on the right side is d1, the distance between the left slit structure and the right slit structure is d1 / 2, and the slit width d2 is always smaller than the slit spacing d1. The flexibility and rigidity of the electrode can be controlled and adjusted by adjusting the structural parameters of the group slit structure, thereby allowing the flexible electrode to autonomously recover after deformation and be reused. Assuming that the diameter D of the circular cross-section or the side length D of the rectangular cross-section and the wall thickness Δ of the metal tube are constant, the slit length l and slit width d2 are negatively correlated with the rigidity of the electrode and positively correlated with the flexibility of the electrode, and the slit spacing d1 is positively correlated with the rigidity of the electrode and negatively correlated with the flexibility of the electrode. A flexible electrode having an array-shaped group slit structure, characterized in that, during an electrolytic machining process, both ends of the flexible electrode deform under load, the electrolyte flows in from both ends of the electrode, flows through the group slit structure into the machining gap, and the removal of the material is completed.

2. A deformation control mechanism applied to a flexible electrode according to claim 1, The deformation control mechanism is characterized by having a total of two sets of deformation control mechanisms, which are identical in structure and installed symmetrically on the left and right sides, and consists of an electrode chuck (V-1), a guide tube (V-2), a liquid delivery tube (V-3), a long connecting rod (V-4), a guide rail (V-5), a slider (V-6), a connecting seat (V-7), and a right-angle connecting rod (V-8), wherein one end of the long connecting rod (V-4) is fitted and connected to one end of the right-angle connecting rod (V-8) to form a rotational pair (A) in the Z direction, the other end of the right-angle connecting rod (V-8) is fitted and connected to the connecting seat (V-7) to form a rotational pair (B) in the Z direction, the connecting seat (V-7) is fixedly attached to the slider (V-6), and the slider (V-6) is fitted and connected to the guide rail (V-5) to form a translational pair (C) in the Y direction.

3. An application of the flexible electrode and deformation control mechanism described in claim 2 to electrolytic machining, The flexible electrode (III) is held and fixed by two electrode chucks (V-1) of the deformation control mechanism (V), the workpiece (IV) is attached to the workpiece connection seat (II), the workpiece connection seat (II) is connected to the Z-axis (I-2) of the machine tool, the two long connecting rods (V-4) of the deformation control mechanism (V) are attached to the X-axis (I-1) and the Y-axis (I-3) of the machine tool, and the two guide rails (V-5) of the deformation control mechanism (V) are attached to the workbench (VI) of the machine tool. In this application, when performing electrolytic machining, the flexible electrode (III) is connected to the negative terminal of the power supply, the workpiece (IV) is connected to the positive terminal of the power supply, the electrolyte flows into the machining area through the electrolyte supply pipe (V-3), and based on the curvature characteristics of the machining die surface, the X-axis (I-1) and Y-axis (I-3) of the machine tool drive the deformation control mechanism (V) to generate corresponding displacements, and through the coordination of the rotational pair (A), rotational pair (B), and translational pair (C), bending deformation of the flexible electrode (III) is realized, and at the same time, in combination with the displacement of the Z-axis (I-2) of the machine tool, the workpiece (IV) is moved upward, ultimately achieving electrolytic machining of complex die surfaces.

Images