Electrochemical machining device, control method, apparatus, and storage medium

Abstract

This application relates to an electrochemical machining apparatus, control method, equipment, and storage medium. The electrochemical machining apparatus includes a main flow channel and a secondary flow channel, which are respectively located on opposite sides of the workpiece and flow through each other with electrolyte. The main flow channel includes a machining zone for electrochemical machining of the workpiece. The secondary flow channel includes a flexible support zone for providing flexible support to the machining zone, and the electrolyte pressure in the flexible support zone counteracts the electrolyte pressure in the machining zone. This application can avoid elastic deformation of the machining zone caused by the thinning of the material thickness in the machining area during electrochemical machining of thin-walled workpieces under high electrolyte pressure conditions, and avoids machining errors, thereby improving machining accuracy.

Description

Technical Field

[0001] This application relates to the field of special processing technology, and in particular to an electrolytic processing apparatus, control method, equipment and storage medium. Background Technology

[0002] Electrolytic machining (EMC) is a specialized process that utilizes the principle of electrochemical anodic dissolution to remove metals, suitable for machining various difficult-to-cut metal materials. During EMC, the tool electrode acts as the cathode, and the workpiece as the anode, maintaining a certain gap between them. A direct current or pulsed voltage is applied between the electrodes. The electrolyte is typically a neutral salt solution, forming an electrochemical reaction cell between the electrodes. Simultaneously, high-speed flushing continuously removes EMC products and heat, and depolarizes the material. When machining complex surfaces or large areas, increasing the electrolyte pressure in the machining gap is necessary to promptly remove machining products and reduce the impact of concentration polarization on material removal. However, under high electrolyte pressure, thin-walled workpieces may experience elastic deformation in the machining area due to the reduced material thickness, leading to machining errors and affecting machining accuracy.

[0003] Therefore, the inventors provide an electrolytic processing apparatus, control method, equipment, and storage medium. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] This application provides an electrolytic machining apparatus, control method, equipment, and storage medium. The technical problem to be solved is that during electrolytic machining of thin-walled workpieces under high electrolyte pressure, the material thickness of the machining area becomes thinner, causing elastic deformation of the machining area, resulting in machining errors and affecting machining accuracy.

[0006] (2) Technical solution

[0007] In a first aspect, embodiments of this application provide an electrolytic machining apparatus, including a main flow channel and a secondary flow channel, which are respectively disposed on both sides of the workpiece and flow through electrolyte; the main flow channel includes a machining zone for electrolytic machining of the workpiece; the secondary flow channel includes a flexible support zone for providing flexible support to the machining zone and offsetting the electrolyte pressure in the machining zone by the electrolyte pressure in the flexible support zone.

[0008] In one embodiment, the electrolytic processing apparatus further includes a first pressure sensor and a first flow regulating valve. The first pressure sensor is used to acquire the electrolyte pressure in the processing zone in real time, and the first flow regulating valve is used to adjust the outlet area of ​​the electrolyte in the main flow channel in real time.

[0009] In one embodiment, the electrolytic processing apparatus further includes a second pressure sensor and a second flow regulating valve. The second pressure sensor is used to acquire the electrolyte pressure in the flexible support area in real time, and the second flow regulating valve is used to adjust the outlet area of ​​the electrolyte in the secondary flow field channel in real time.

[0010] In one embodiment, the electrolytic machining apparatus further includes a water inlet jacket, an electrolyte inlet, a liquid collecting chamber, a main flow field water jacket, a secondary flow field water jacket, and electrodes; the electrolyte inlet is located on the water inlet jacket for supplying electrolyte inflow; the liquid collecting chamber is located inside the water inlet jacket and communicates with the main flow field channel and the secondary flow field channel for premixing the electrolyte and allowing the electrolyte to flow into the main flow field channel and the secondary flow field channel respectively; the electrodes are located in the machining area and connected to the negative terminal of the machining power supply for removing workpiece material.

[0011] Secondly, embodiments of this application provide an electrolytic machining control method, applied to the electrolytic machining apparatus described above, comprising:

[0012] The electrolyte is flowed into the main flow channel and the secondary flow channel, respectively.

[0013] Based on the electrolyte pressure in the processing zone of the main flow channel, the electrolyte pressure in the flexible support zone of the secondary flow channel is adjusted in real time to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone.

[0014] In one embodiment, before adjusting the electrolyte pressure in the flexible support zone of the secondary flow field channel in real time according to the electrolyte pressure in the processing zone of the main flow field channel, so as to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone, the method further includes:

[0015] The opening degree of the first flow regulating valve is adjusted in real time to control the electrolyte pressure and flow rate in the processing area;

[0016] The electrolyte pressure in the processing area is obtained in real time through the first pressure sensor.

[0017] In one embodiment, the electrolyte pressure in the flexible support zone of the secondary flow channel is adjusted in real time based on the electrolyte pressure in the processing zone of the main flow channel, so as to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone, including:

[0018] The electrolyte pressure in the flexible support area is acquired in real time using a second pressure sensor.

[0019] The opening of the second flow regulating valve is adjusted in real time according to the electrolyte pressure in the processing zone and the electrolyte pressure in the flexible support zone, so as to keep the electrolyte pressure in the flexible support zone and the electrolyte pressure in the processing zone in balance.

[0020] In one embodiment, the opening of the second flow regulating valve is adjusted in real time based on the electrolyte pressure in the processing zone and the electrolyte pressure in the flexible support zone, so as to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone, including:

[0021] If the electrolyte pressure in the processing zone is greater than the electrolyte pressure in the flexible support zone, adjust the opening of the second flow regulating valve to reduce the outlet area of ​​the electrolyte in the secondary flow field channel, thereby reducing the pressure drop of the electrolyte along the process flow in the secondary flow field channel.

[0022] If the electrolyte pressure in the processing zone is less than the electrolyte pressure in the flexible support zone, adjust the opening of the second flow regulating valve to increase the outlet area of ​​the electrolyte in the secondary flow field channel, thereby increasing the pressure drop of the electrolyte along the flow path in the secondary flow field channel.

[0023] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the electrolytic machining control method as described above.

[0024] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the electrolytic machining control method as described above.

[0025] (3) Beneficial effects

[0026] The above-mentioned technical solution of this application has the following advantages:

[0027] The electrochemical machining apparatus provided in the first aspect of this application provides a main flow channel and a secondary flow channel on both sides of the workpiece. The electrolyte flows through the processing area of ​​the main flow channel and the flexible support area of ​​the secondary flow channel, respectively. The flexible support area provides flexible support for the processing area, and the electrolyte pressure in the flexible support area counteracts the pressure of the main flow electrolyte in the processing gap on the processing area. This achieves deformation control of thin-walled structures, avoids elastic deformation of the processing area caused by the thinning of the material thickness in the processing area during electrochemical machining under high electrolyte pressure, and avoids processing errors, thereby improving processing accuracy.

[0028] It is understood that the beneficial effects of the second, third and fourth aspects mentioned above can be found in the relevant descriptions in the first aspect above, and will not be repeated here. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the electrolytic processing apparatus provided in this application;

[0031] Figure 2 A schematic flowchart illustrating the electrolytic machining control method provided in this application;

[0032] Figure 3 A schematic diagram of the structure of the electronic device provided in this application.

[0033] Reference numerals in the attached diagram: 1. Main flow channel; 2. Secondary flow channel; 3. Workpiece; 4. Machining area; 5. Flexible support area; 6. First pressure sensor; 7. First flow regulating valve; 8. Second pressure sensor; 9. Second flow regulating valve; 10. Water inlet jacket; 11. Electrolyte inlet; 12. Liquid collection chamber; 13. Main flow water jacket; 14. Secondary flow water jacket; 15. Electrode. Detailed Implementation

[0034] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0035] It should be understood that, when used in this application specification and appended claims, the term "comprising" indicates the presence of the described feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. The terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this application specification and appended claims, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0037] In the design of aero-engine fans and compressors, thin-walled casings, thin-walled covers, complex curved panels, and nacelles are widely used, representing weakly rigid components. These components are often made of high-temperature alloys or titanium alloys, and structurally consist of narrow-channel blades, complex concave-convex surfaces on thin walls, high ribs, or irregularly shaped complex channels. These integral, thin-walled, complex structural components share common characteristics: poor machinability (high strength and hardness), complex shapes (various cavities, bosses, grooves, curved surfaces, and irregularly shaped channels), and lightweight structures (extremely large material removal rates from blanks, sometimes reaching 60%–80%, with part wall thicknesses as thin as 0.5 mm). This poor machinability makes traditional machining extremely difficult, resulting in severe deformation that is difficult to control, severe tool wear, extremely low machining efficiency, high costs, and poor surface quality.

[0038] Electrolytic machining (EMC) is a specialized process that utilizes the principle of electrochemical anodic dissolution to remove material from metals. It features high processing efficiency, no tool electrode consumption, stress-free processing, and excellent surface integrity. It is suitable for machining various difficult-to-cut metal materials (titanium alloys, high-temperature heat-resistant alloys, etc.), and is particularly well-suited for the efficient batch production of parts and the machining of various complex three-dimensional shapes. In EMC, the tool electrode acts as the cathode, and the workpiece as the anode. The EMC electrode is generally made of metal, and its working surface shape is the opposite of the required shape of the workpiece anode. For example, when machining grooves or holes, the tool electrode end has a convex rib or columnar structure; when machining bosses, the tool electrode end has a concave cavity structure. During EMC, a certain gap is maintained between the workpiece anode and the tool electrode. A DC or pulsed voltage is applied between the electrodes. The electrolyte is generally a neutral salt solution, forming an electrochemical reaction cell between the electrodes. Simultaneously, high-speed scouring continuously removes EMC products and heat, and depolarizes the workpiece. The workpiece anode dissolves continuously according to the shape of the tool electrode until the workpiece's shape and dimensions meet the requirements.

[0039] During electrochemical machining (ECM), high-speed flowing electrolyte passes through the machining gap between the tool electrode and the workpiece, carrying away electrolytic products and ohmic heat between the electrodes to ensure stable electrolyte conductivity within the gap. When machining complex surfaces and large areas, to promptly remove machining products and reduce the impact of concentration polarization on material removal, the electrolyte pressure in the machining gap needs to be increased, sometimes reaching up to 2 MPa. During machining, the electrolyte reaction force is directly proportional to the machining area. For example, a 100 cm² machining surface can generate a normal reaction force exceeding 1000 kg. Such high electrolyte reaction force inevitably causes elastic deformation in the machining area, resulting in machining errors and affecting machining accuracy. In previous production processes, the only solution was to enlarge the ECM gap and reduce the electrolyte pressure to control the impact of electrolyte reaction force. In the final stage of machining, only "low parameters" and large gaps could be used, resulting in a reversal of gap control and a sacrifice of machining accuracy and efficiency. Deformation control in ECM of thin-walled structures while maintaining high-precision machining levels has become a long-standing bottleneck.

[0040] To address the aforementioned problems, this application provides an electrochemical machining apparatus. The apparatus includes a main flow channel and a secondary flow channel, which are respectively located on opposite sides of the workpiece and flow through each other with electrolyte. The main flow channel includes a machining zone for electrochemical machining of the workpiece. The secondary flow channel includes a flexible support zone for providing flexible support to the machining zone, and the electrolyte pressure in the flexible support zone counteracts the electrolyte pressure in the machining zone. This apparatus can solve the problem of elastic deformation in the machining zone caused by the thinning of the material in the machining area during electrochemical machining of thin-walled workpieces under high electrolyte pressure conditions.

[0041] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0042] like Figure 1 As shown, the electrolytic machining apparatus provided in this embodiment includes: a main flow channel 1 and a secondary flow channel 2, which are respectively disposed on both sides of the workpiece 3 and flow through electrolyte respectively; the main flow channel 1 includes a machining zone 4 for electrolytic machining of the workpiece 3; the secondary flow channel 2 includes a flexible support zone 5 for providing flexible support to the machining zone 4, and the electrolyte pressure in the flexible support zone 5 is used to counteract the electrolyte pressure in the machining zone 4.

[0043] In one embodiment, the electrolytic processing apparatus further includes a first pressure sensor 6 and a first flow regulating valve 7. The first pressure sensor 6 is used to acquire the electrolyte pressure in the processing zone 4 in real time, and the first flow regulating valve 7 is used to adjust the outlet area of ​​the electrolyte in the main flow channel 1 in real time.

[0044] In one embodiment, the electrolytic processing apparatus further includes a second pressure sensor 8 and a second flow regulating valve 9. The second pressure sensor 8 is used to acquire the electrolyte pressure of the flexible support area 5 in real time, and the second flow regulating valve 9 is used to adjust the outlet area of ​​the electrolyte in the secondary flow field channel 2 in real time.

[0045] In one embodiment, the electrolytic machining apparatus further includes a water inlet jacket 10, an electrolyte inlet 11, a liquid collecting chamber 12, a main flow field water jacket 13, a secondary flow field water jacket 14, and an electrode 15; the electrolyte inlet 11 is disposed on the water inlet jacket 10 for supplying electrolyte inflow; the liquid collecting chamber 12 is disposed inside the water inlet jacket 10 and communicates with the main flow field channel 1 and the secondary flow field channel 2 for premixing the electrolyte and allowing the electrolyte to flow into the main flow field channel 1 and the secondary flow field channel 2 respectively; the electrode 15 is disposed in the machining area 4 and connected to the negative terminal of the machining power supply for removing workpiece material.

[0046] In applications, to address the elastic deformation problem in the machining area caused by high electrolyte pressure during electrolytic machining of thin-walled structures, a primary and secondary flow field design method is proposed. This involves designing electrolyte channels on the back side of the machining area, forming a secondary flow field corresponding to the primary flow field on the front side. During machining, the electrolyte enters the machining area and its back side through the inlet, forming the primary and secondary flow fields. The primary flow field participates in the material removal reaction and carries away electrolytic products; the secondary flow field provides flexible support for the machining area. During electrolytic machining, the electrolyte enters the machining area, the electrode connects to the negative terminal of the machining power supply, gains electrons, and undergoes a reduction reaction, while the workpiece connects to the positive terminal, loses electrons, and undergoes an oxidation reaction. As the electrode is continuously fed, the workpiece material in the machining area is continuously dissolved and removed, and the electrolytic products are carried away by the high-speed flowing electrolyte. The workpiece wall thickness gradually decreases, ultimately achieving the desired shape. The workpiece can be a thin-walled casing, a cylindrical rotating part, or a complex curved panel, among other weakly rigid components. The electrolytes for the main and secondary flow fields are of the same origin. The same electrolyte can simultaneously supply the main flow field electrolyte that participates in the electrochemical reaction and maintain the electrolyte pressure that provides flexible support for the workpiece processing area. There is no need to configure a secondary flow field electrolyte supply device, which simplifies the tooling structure and makes the tooling layout more compact. This provides an effective technical approach for the efficient and precise machining of thin-walled and weakly rigid components.

[0047] In this process, the electrolyte enters the collection chamber of the water jacket through the electrolyte inlet for premixing, and then flows into the main flow channel and the secondary flow channel. The electrolyte in the main flow channel participates in the electrochemical reaction in the processing zone, while the electrolyte in the secondary flow channel enters the flexible support zone, providing flexible support to the processing zone, counteracting the electrolyte reaction force, and eliminating processing errors caused by elastic deformation of the processing zone due to the electrolyte reaction force. To ensure that the electrolyte pressure in the processing zone and the flexible support zone is approximately equal, a first pressure sensor, a first flow regulating valve, a second pressure sensor, and a second flow regulating valve are installed at the electrolyte channel outlets of the main and secondary flow fields. Firstly, the opening of the first flow regulating valve is adjusted in real time to control the electrolyte pressure and flow rate in the processing zone, thus meeting the electrolyte flow field conditions required for the electrochemical reactions in different stages of workpiece electrochemical processing, such as the leveling stage, the large allowance removal stage, and the final shaping stage. Based on this, the electrolyte pressure in the flexible support area is adjusted in real time according to the changes in electrolyte pressure in the processing area to ensure the electrolyte pressure balance between the workpiece processing area and the flexible support area and avoid elastic deformation.

[0048] The electrochemical machining apparatus provided in this application provides a main flow channel and a secondary flow channel on opposite sides of the workpiece. The electrolyte flows through the machining area of ​​the main flow channel and the flexible support area of ​​the secondary flow channel, respectively. The flexible support area provides flexible support to the machining area, and the electrolyte pressure in the flexible support area counteracts the pressure of the main flow electrolyte in the machining gap on the machining area. This achieves deformation control of thin-walled structures, preventing elastic deformation of the machining area caused by material thinning during electrochemical machining under high electrolyte pressure, thus avoiding machining errors and improving machining accuracy. Compared to using mechanical rigid support on the back of the machining area, this apparatus is simpler to operate, eliminates the need for complex tooling, and avoids assembly errors in the rigid support tooling caused by workpiece blank errors, resulting in higher reliability.

[0049] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application.

[0050] like Figure 2 As shown, this embodiment also provides an electrolytic machining control method, applied to the electrolytic machining apparatus described in the above embodiment, including:

[0051] S100, the electrolyte flows into the main flow field channel and the secondary flow field channel respectively.

[0052] S200: Based on the electrolyte pressure in the processing zone of the main flow channel, adjust the electrolyte pressure in the flexible support zone of the secondary flow channel in real time to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone.

[0053] In one embodiment, before adjusting the electrolyte pressure in the flexible support zone of the secondary flow field channel in real time according to the electrolyte pressure in the processing zone of the main flow field channel to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone, the method further includes: adjusting the opening of the first flow regulating valve in real time to control the electrolyte pressure and flow rate in the processing zone; and acquiring the electrolyte pressure in the processing zone in real time through the first pressure sensor.

[0054] In one embodiment, adjusting the electrolyte pressure in the flexible support zone of the secondary flow field channel in real time according to the electrolyte pressure in the processing zone of the main flow field channel to maintain a balance between the electrolyte pressure in the flexible support zone and the electrolyte pressure in the processing zone includes: acquiring the electrolyte pressure in the flexible support zone in real time using a second pressure sensor; and adjusting the opening of a second flow regulating valve in real time according to the electrolyte pressure in the processing zone and the electrolyte pressure in the flexible support zone to maintain a balance between the electrolyte pressure in the flexible support zone and the electrolyte pressure in the processing zone.

[0055] In one embodiment, the opening of the second flow regulating valve is adjusted in real time according to the electrolyte pressure in the processing zone and the electrolyte pressure in the flexible support zone to keep the electrolyte pressure in the flexible support zone and the electrolyte pressure in the processing zone balanced. This includes: if the electrolyte pressure in the processing zone is greater than the electrolyte pressure in the flexible support zone, adjusting the opening of the second flow regulating valve to reduce the outlet area of ​​the electrolyte in the secondary flow field channel, thereby reducing the pressure drop of the electrolyte in the secondary flow field channel along the flow path; if the electrolyte pressure in the processing zone is less than the electrolyte pressure in the flexible support zone, adjusting the opening of the second flow regulating valve to increase the outlet area of ​​the electrolyte in the secondary flow field channel, thereby increasing the pressure drop of the electrolyte in the secondary flow field channel along the flow path.

[0056] In application, the electrolyte pressure in the secondary flow channel is adjusted in real time according to the changes in the electrolyte pressure in the main flow channel. Based on the electrolyte flow field conditions required for the electrochemical reactions in different stages of electrochemical processing, such as the leveling stage, the large allowance removal stage, and the final shaping stage, the electrolyte pressure in the processing zone is adjusted in real time to keep the electrolyte pressures in the processing zone and the flexible support zone approximately equal at all times. This ensures that the processing zone does not experience elastic deformation, eliminates processing errors caused by elastic deformation, and guarantees processing accuracy. The first pressure sensor detects the electrolyte pressure A in the processing zone within the main flow channel, and the second pressure sensor detects the electrolyte pressure B in the flexible support zone within the secondary flow channel. When A > B, the second flow regulating valve is controlled to reduce the electrolyte outlet area in the secondary flow channel, thereby reducing the pressure drop of the electrolyte along the flow path in the secondary flow channel and causing the values ​​of A and B to tend to be equal. When A < B, the second flow regulating valve is used to increase the electrolyte outlet area in the secondary flow channel, thereby increasing the pressure drop of the electrolyte along the flow path and causing the values ​​of A and B to tend to be equal. Furthermore, during processing, the electrolyte pressure in the flexible support area is adjusted in real time according to the values ​​of A and B.

[0057] Taking the precision electrolytic machining of thin-walled casings as an example, NaNO3 electrolyte can be used, which is a nonlinear electrolyte with high processing efficiency and low cost. A smaller cutting gap allows for the removal of material from smaller gaps. Experiments have shown that a 10%-20% NaNO3 electrolyte concentration is optimal. Excessive electrolyte pressure can cause excessive local erosion, resulting in uneven wall thickness. Too low a pressure will not meet the erosion conditions required for electrolytic machining. Experiments have determined that the optimal electrolyte pressure range is 0.8MPa-1.6MPa. The electrolyte temperature needs to remain stable during processing to ensure consistent processing conditions during batch processing. Experiments have determined that an electrolyte temperature range of 25℃-40℃ is optimal. The machining gap should be appropriately increased to weaken the concentrated erosion effect and make the removal more uniform. However, it must be controlled within the anodic dissolution cutting gap; experiments have determined that an initial machining gap of 0.1mm-0.3mm is optimal. Higher voltage helps improve processing efficiency. Experiments have determined that the optimal processing voltage for stainless steel and typical high-temperature alloys is 18V-24V. The optimal pulse width is t = 0.1ms-0.3ms, and the optimal pulse duty cycle is 5%-60%. Experiments have determined that the optimal electrode feed rate is 0.05mm / min-0.5mm / min.

[0058] like Figure 3 As shown, this embodiment also provides an electronic device 300, including a memory 301, a processor 302, and a computer program 303 stored in the memory 301 and executable on the processor 302. When the processor 302 executes the computer program 303, it implements the steps of the electrolytic machining control method described in the above embodiment.

[0059] In applications, electronic devices may include, but are not limited to, processors and memory. Figure 3 This is merely an example of an electronic device and does not constitute a limitation on the device. It may include more or fewer components than illustrated, or combinations of certain components, or different components, such as input / output devices, network access devices, etc. Input / output devices may include cameras, audio capture / playback devices, displays, etc. Network access devices may include network modules for wireless network communication with external devices.

[0060] In applications, the processor can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0061] In applications, memory can be an internal storage unit of an electronic device in some embodiments, such as a hard drive or RAM. In other embodiments, memory can be an external storage device of the electronic device, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card. Memory can also include both internal and external storage units of the electronic device. Memory is used to store operating systems, applications, bootloaders, data, and other programs, such as program code for computer programs. Memory can also be used to temporarily store data that has been output or will be output.

[0062] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps in the above-described method embodiments.

[0063] This application implements all or part of the processes in the methods of the above embodiments, which can be accomplished by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include at least: any entity or device capable of carrying the computer program code to an electronic device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, such as a USB flash drive, a portable hard drive, a magnetic disk, or an optical disk.

[0064] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0065] Those skilled in the art will recognize that the device and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0066] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An electrolytic processing apparatus, characterized in that, It includes a main flow channel and a secondary flow channel, which are respectively located on both sides of the workpiece and flow through electrolyte. The main flow channel includes a processing zone for electrolytic machining of the workpiece. The secondary flow channel includes a flexible support zone for providing flexible support to the processing zone and offsetting the electrolyte pressure in the processing zone by the electrolyte pressure in the flexible support zone.

2. The electrolytic processing apparatus as described in claim 1, characterized in that, It also includes a first pressure sensor and a first flow regulating valve. The first pressure sensor is used to acquire the electrolyte pressure in the processing zone in real time, and the first flow regulating valve is used to adjust the outlet area of ​​the electrolyte in the main flow channel in real time.

3. The electrolytic processing apparatus as described in claim 1, characterized in that, It also includes a second pressure sensor and a second flow regulating valve. The second pressure sensor is used to acquire the electrolyte pressure in the flexible support area in real time, and the second flow regulating valve is used to adjust the outlet area of ​​the electrolyte in the secondary flow field channel in real time.

4. The electrolytic processing apparatus as described in claim 1, characterized in that, It also includes a water inlet jacket, an electrolyte inlet, a liquid collecting chamber, a main flow field water jacket, a secondary flow field water jacket, and electrodes; the electrolyte inlet is located on the water inlet jacket for supplying electrolyte inflow; the liquid collecting chamber is located inside the water inlet jacket and communicates with the main flow field channel and the secondary flow field channel for premixing the electrolyte and allowing the electrolyte to flow into the main flow field channel and the secondary flow field channel respectively; the electrodes are located in the processing area and connected to the negative terminal of the processing power supply for removing workpiece material.

5. A method for controlling electrolytic machining, characterized in that, Applied to the electrolytic machining apparatus as described in any one of claims 1 to 4, comprising: The electrolyte is flowed into the main flow channel and the secondary flow channel, respectively. Based on the electrolyte pressure in the processing zone of the main flow channel, the electrolyte pressure in the flexible support zone of the secondary flow channel is adjusted in real time to keep the electrolyte pressure in the flexible support zone balanced with the electrolyte pressure in the processing zone.

6. The electrolytic machining control method as described in claim 5, characterized in that, Before adjusting the electrolyte pressure in the flexible support area of ​​the secondary flow field channel in real time according to the electrolyte pressure in the processing area of ​​the main flow field channel, so as to keep the electrolyte pressure in the flexible support area in balance with the electrolyte pressure in the processing area, the method further includes: The opening degree of the first flow regulating valve is adjusted in real time to control the electrolyte pressure and flow rate in the processing area; The electrolyte pressure in the processing area is obtained in real time by a first pressure sensor.

7. The electrolytic machining control method as described in claim 5, characterized in that, The step of adjusting the electrolyte pressure in the flexible support area of ​​the secondary flow field channel in real time according to the electrolyte pressure in the processing area of ​​the main flow field channel, so as to keep the electrolyte pressure in the flexible support area in balance with the electrolyte pressure in the processing area, includes: The electrolyte pressure in the flexible support area is acquired in real time using a second pressure sensor. The opening of the second flow regulating valve is adjusted in real time according to the electrolyte pressure in the processing zone and the electrolyte pressure in the flexible support zone, so as to keep the electrolyte pressure in the flexible support zone and the electrolyte pressure in the processing zone in balance.

8. The electrolytic machining control method as described in claim 7, characterized in that, The step of adjusting the opening of the second flow regulating valve in real time according to the electrolyte pressure in the processing zone and the electrolyte pressure in the flexible support zone, so as to keep the electrolyte pressure in the flexible support zone and the electrolyte pressure in the processing zone balanced, includes: If the electrolyte pressure in the processing zone is greater than the electrolyte pressure in the flexible support zone, the opening of the second flow regulating valve is adjusted to reduce the outlet area of ​​the electrolyte in the secondary flow field channel, thereby reducing the pressure drop of the electrolyte along the flow path in the secondary flow field channel. If the electrolyte pressure in the processing zone is less than the electrolyte pressure in the flexible support zone, the opening of the second flow regulating valve is adjusted to increase the outlet area of ​​the electrolyte in the secondary flow field channel, thereby increasing the pressure drop of the electrolyte along the flow path in the secondary flow field channel.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the electrolytic machining control method as described in any one of claims 5 to 8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the electrolytic machining control method as described in any one of claims 5 to 8.

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