Sheet cathode electrolysis turning machining method and system

Abstract

The invention relates to the technical field of electrochemical machining, in particular to a flaky cathode electrolysis turning machining method and system. According to the invention, a sheet-shaped cutter is firstly designed, the front wall surface and the rear wall surface of the cutter are integral planes, and the side wall is thin, so that a sheet-shaped structure is formed. Electrolyte can evenly flow on the plane structure of the front wall face, compared with a traditional electrolytic turning mode that the electrolyte is directly sprayed to the workpiece through a conventional forward liquid spraying method, the method has the advantages that the workpiece makes contact with the electrolyte in the mode that the front wall face is attached to the workpiece, the flow speed of the electrolyte is more uniform, and a machining area is more uniform and controllable; and the processing area of the electrolyte dissolving workpiece is increased through the wall plane structure. And finally, the workpiece is subjected to electrolytic turning through linkage of the rotating motion of the workpiece and the feeding motion of the sheet-shaped cutter, the electrolytic turning efficiency is improved, the workpiece can be machined into different complex shapes, and the machining adaptability of electrolytic turning is improved.

Description

Technical Field

[0001] This invention relates to the field of electrochemical machining technology, and in particular to a method and system for electrolytic turning of sheet cathodes. Background Technology

[0002] The efficient and precise machining of materials with poor machinability has always been a major technical challenge in the field of mechanical manufacturing. When machining low-rigidity parts using traditional mechanical turning processes, workpiece deformation is easily caused, and there is also the problem of severe tool wear. If electrical discharge machining is used, it is accompanied by large electrode wear and low finishing efficiency. At the same time, the workpiece surface is prone to generating a modified layer and thermal stress, which reduces the quality of the workpiece. While the high-power hot spinning forming technology can achieve the machining and forming of high-precision thin-walled parts, surface cracking often occurs during the spinning process when processing difficult-to-deform metal materials such as titanium alloys and titanium-aluminum alloys.

[0003] Currently, electrolytic turning, as an extension of electrolytic machining, exhibits significant advantages in machining difficult-to-cut materials due to its characteristics of no tool wear, no altered layer or thermal stress on the machined surface, and no residual stress or mechanical deformation. It provides a feasible path for high-quality, low-cost machining of these difficult-to-cut materials and low-rigidity structural parts. However, existing electrolytic turning technologies still face the challenge of balancing machining adaptability and material removal rate. Current electrolytic turning uses simple-shaped tools such as rods or cutting tools for workpiece machining, resulting in a limited effective machining area and low material removal rate. Simply increasing the machining surface area of ​​rod-shaped or cutting tool-shaped electrodes can lead to uneven electrolyte distribution, insufficient flow rate, and difficulty in removing machining products, thus hindering machining stability and efficiency. Using forming tools to increase the machining area and improve the workpiece material removal rate often results in a loss of machining flexibility due to the fixed tool shape, poor adaptability, and complex design and manufacturing processes. Summary of the Invention

[0004] The present invention aims to provide a method and system for electrolytic turning of sheet cathodes to solve the problems of uneven electrolyte distribution and low material removal rate in current electrolytic turning workpiece processing technology.

[0005] To achieve the above objectives, a first aspect of the present invention provides a method for electrolytic turning of a sheet cathode, comprising the following steps:

[0006] Provide a workpiece and cause the workpiece to rotate about its own axis;

[0007] A blade-shaped cutting tool is provided, an electrolyte flows on the front wall surface of the blade-shaped cutting tool, and the front wall surface is brought into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte.

[0008] Using the workpiece as the anode and the sheet-shaped cutter as the cathode, current is passed through the electrolyte, thereby dissolving the workpiece in the electrolyte;

[0009] The blade-shaped tool is fed relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning on the workpiece.

[0010] This invention first designs a sheet-like cutting tool with front and rear walls that are single flat surfaces and thin sidewalls, thus forming a sheet-like structure. The planar structure of the front wall allows for uniform flow of electrolyte. Compared to traditional electrolytic turning, which uses a conventional forward spraying method to directly spray electrolyte onto the workpiece, this invention allows the workpiece to contact the electrolyte by having the front wall in contact with the workpiece. This results in a more uniform electrolyte flow rate, a more uniform and controllable machining area, and the planar structure of the wall increases the machining area where the electrolyte dissolves the workpiece. Finally, this invention links the rotational motion of the workpiece with the feed motion of the sheet-like cutting tool to perform electrolytic turning, improving electrolytic turning efficiency and enabling the machining of workpieces into various complex shapes, thus enhancing the adaptability of electrolytic turning.

[0011] Further, the step of flowing electrolyte on the front wall surface of the blade-shaped tool and bringing the front wall surface into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte, includes:

[0012] Electrolyte is continuously sprayed onto the top of the front wall surface so that the electrolyte flows downward along the front wall surface, thereby bringing the workpiece into contact with the electrolyte.

[0013] The step of using the workpiece as the anode and the sheet-shaped cutter as the cathode to pass electricity to the electrolyte, thereby causing the workpiece to be dissolved by the electrolyte, includes:

[0014] The workpiece is dissolved by the electrolyte to produce electrolytic products;

[0015] The electrolyte carries the electrolysis products downward along the front wall surface, thereby flowing to the bottom of the front wall surface for discharge.

[0016] In this implementation, continuously spraying electrolyte onto the top of the front wall surface facilitates the formation of a high-speed jet of electrolyte that flows rapidly and uniformly from top to bottom along the front wall surface. This results in a uniform electrolyte flow layer covering the entire surface of the front wall, increasing the processing area for dissolving the workpiece with the electrolyte. The workpiece in contact with the electrolyte flow layer can be uniformly dissolved during rotation and feed movements. Furthermore, the electrolyte can more efficiently flush away the electrolytic products generated during workpiece dissolution, thereby improving the workpiece material removal rate and processing quality, and greatly enhancing processing efficiency and stability.

[0017] Furthermore, the electrolyte carries the electrolysis products downward along the front wall surface, thereby flowing towards the bottom end of the front wall surface for discharge, including:

[0018] The rotational motion of the workpiece is in the same direction as the flow direction of the electrolyte;

[0019] The electrolytic products are accelerated away from the workpiece by the centrifugal force of the rotating motion, and are thus carried by the electrolyte to flow downward along the front wall and discharged at the bottom of the front wall.

[0020] In this implementation, on the tangential plane where the workpiece is tangent to the front wall surface, both the rotation direction of the workpiece and the flow direction of the electrolyte point towards the bottom of the front wall surface. Under the centrifugal force of the workpiece's rotation, the electrolytic products are accelerated and thrown off, thereby accelerating their flushing and discharge by the electrolyte, achieving more efficient flushing and removal of the electrolytic products.

[0021] Furthermore, the top end of the blade-shaped cutter is provided with a liquid storage cavity, the liquid storage cavity stores electrolyte, and an outlet slit is provided outside the liquid storage cavity; the flow of electrolyte on the front wall surface of the blade-shaped cutter includes:

[0022] The electrolyte is pumped out from the storage cavity through the outlet slit and then sprayed onto the top of the front wall surface;

[0023] The electrolyte carries the electrolysis products downwards along the front wall, and after flowing to the bottom of the front wall and being discharged, it further includes:

[0024] The electrolyte and the electrolysis products are recovered as turbid liquid, and the turbid liquid is filtered into a clear liquid, which is then added to the storage chamber.

[0025] In this implementation, a liquid storage chamber is provided at the tip of the blade-shaped cutting tool. This allows the electrolyte to be continuously sprayed from the storage chamber through the outlet slit towards the top of the front wall, forming a uniform and continuous electrolyte flow that covers the front wall surface. Simultaneously, the turbid liquid discharged from the bottom of the front wall is filtered into clear liquid and recycled back to the storage chamber. This improves electrolyte utilization and reduces pollution products from electrolytic turning, resulting in a high return on investment and environmentally friendly benefits for workpiece turning.

[0026] Further, the step of causing the blade-shaped tool to perform a feed motion relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning of the workpiece, includes:

[0027] The plane containing the front wall is parallel to the axis of the workpiece, so that the blade-shaped tool can make a radial feed motion relative to the workpiece.

[0028] This implementation method is applicable to turning outer diameters, parting, or facing of workpieces. Specifically, for turning outer diameters, the blade-shaped tool moves radially relative to the workpiece, cooperating with the workpiece's rotation, to gradually remove material from the workpiece's outer surface, reducing the workpiece diameter and obtaining a cylindrical surface, thus achieving the turning of the outer diameter. For parting, the blade-shaped tool moves radially relative to the workpiece, cooperating with the workpiece's rotation, to remove a whole piece of material radially from the workpiece, dividing it in two, thus achieving the parting process. For facing, the blade-shaped tool moves radially relative to the workpiece, cooperating with the workpiece's rotation, to gradually cut out a flat, smooth plane perpendicular to the workpiece's axis.

[0029] Further, the step of causing the blade-shaped tool to perform a feed motion relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning of the workpiece, includes:

[0030] The plane containing the front wall intersects the workpiece axis perpendicularly, so that the blade-shaped tool can make a feed motion relative to the axial direction of the workpiece.

[0031] This implementation method is suitable for machining the outer diameter of a workpiece by turning. Specifically, the blade-shaped tool makes a feed motion relative to the axial direction of the workpiece, which, in conjunction with the rotational motion of the workpiece, gradually removes material from the outer surface of the workpiece to reduce the workpiece diameter, obtain a cylindrical surface, and achieve the turning of the outer diameter.

[0032] Further, the step of causing the blade-shaped tool to perform a feed motion relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning of the workpiece, includes:

[0033] The plane containing the front wall intersects with but is not perpendicular to the axis of the workpiece, so that the blade-shaped tool can simultaneously perform radial and axial feed movements relative to the workpiece.

[0034] This implementation method is applicable to turning chamfers or turning truncated cones on workpieces. Specifically, for turning chamfers, the blade-shaped tool simultaneously feeds relative to the radial and axial directions of the workpiece, cutting a bevel at the edge of the workpiece to achieve the turning chamfer. For turning truncated cones, the blade-shaped tool simultaneously feeds relative to the radial and axial directions of the workpiece, machining a truncated cone with a constant slope on the rotating workpiece to achieve the turning truncated cone.

[0035] A second aspect of the present invention provides a sheet cathode electrolytic turning system, applicable to a sheet cathode electrolytic turning method as described in any embodiment of the first aspect. The system includes a turning machine tool, a sheet-shaped cutting tool, a liquid storage chamber, a first pressure pump, a pulse power supply, and a control module; wherein:

[0036] The turning machine tool is used to place the workpiece and make the workpiece rotate about its own axis;

[0037] The top of the blade is provided with a liquid storage cavity, which stores electrolyte, and an outlet slit is provided outside the liquid storage cavity;

[0038] The control module uses the first pressure pump to pump the electrolyte out of the storage chamber through the outlet slit, and then spray it onto the top of the front wall, so that the front wall comes into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte.

[0039] The positive terminal of the pulse power supply is electrically connected to the workpiece, and the negative terminal of the pulse power supply is electrically connected to the blade-shaped tool; the pulse power supply is used to pass electricity to the electrolyte with the workpiece as the anode and the blade-shaped tool as the cathode, thereby causing the workpiece to be dissolved by the electrolyte;

[0040] The control module is used to make the blade-shaped tool feed relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning on the workpiece.

[0041] Further, the rotational direction of the workpiece is the same as the flow direction of the electrolyte; the step of using the workpiece as the anode and the sheet-shaped cutter as the cathode to pass electricity to the electrolyte, thereby causing the workpiece to be dissolved by the electrolyte, includes:

[0042] The workpiece is dissolved by the electrolyte to produce electrolytic products;

[0043] The electrolytic products are accelerated away from the workpiece by the centrifugal force of the rotating motion, and are thus carried by the electrolyte to flow downward along the front wall and discharged at the bottom of the front wall.

[0044] Furthermore, the system also includes a second pressure pump, a third pressure pump, a filter, a turbid liquid storage tank, and a clear liquid storage tank; wherein:

[0045] The turbid liquid storage tank is located below the front wall surface and is used to recover and store the electrolyte and the electrolysis products as turbid liquid.

[0046] The turbid liquid storage tank is connected to the clear liquid storage tank via the second pressure pump and the filter;

[0047] The control module pumps the turbid liquid from the turbid liquid storage tank to the filter through the second pressure pump, so that the turbid liquid is filtered into clear liquid, and then the clear liquid is pumped to the clear liquid storage tank.

[0048] The clear liquid storage tank is connected to the liquid storage chamber via the third pressure pump;

[0049] The control module pumps the clear liquid from the clear liquid storage tank to the liquid storage chamber via the third pressure pump. Attached Figure Description

[0050] Figure 1 This is a schematic flowchart of a sheet cathode electrolytic turning method provided in an embodiment of the present invention;

[0051] Figure 2 This is a schematic diagram of the structure of a sheet cathode electrolytic turning system provided in an embodiment of the present invention;

[0052] Figure 3 This is a front view of the first type of sheet cathode electrolytic turning process provided in the embodiments of the present invention;

[0053] Figure 4 This is a three-dimensional structural diagram of the first type of sheet cathode electrolytic turning provided in the embodiments of the present invention;

[0054] Figure 5 This is a side view of the second type of sheet cathode electrolytic turning provided in this embodiment of the invention;

[0055] Figure 6 This is a three-dimensional structural diagram of the second type of sheet cathode electrolytic turning provided in the embodiments of the present invention;

[0056] Figure 7 This is a top view of the third type of sheet cathode electrolytic turning process provided in this embodiment of the invention;

[0057] Figure 8 This is a three-dimensional structural diagram of the third type of sheet cathode electrolytic turning provided in the embodiments of the present invention;

[0058] The components are: 1. Workpiece; 2. Turning machine tool; 3. Blade tool; 4. Liquid storage chamber; 5. First pressure pump; 6. Pulse power supply; 7. First turbid liquid storage tank; 8. First control valve; 9. Second turbid liquid storage tank; 10. Clear liquid storage tank; 11. Second pressure pump; 12. Filter; 13. Third pressure pump; 14. Second control valve; 15. Pressure gauge. Detailed Implementation

[0059] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that the following detailed descriptions are exemplary and intended to provide further detailed explanation of the invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order.

[0060] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0061] refer to Figure 1 The first embodiment of the present invention provides a method for electrolytic turning of a sheet cathode, comprising the following steps:

[0062] S1. Provide a workpiece and cause the workpiece to rotate about its own axis;

[0063] S2. Provide a blade-shaped cutting tool, on which an electrolyte flows and the front wall surface of the blade-shaped cutting tool is brought into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte.

[0064] S3. Using the workpiece as the anode and the sheet-shaped cutter as the cathode, current is passed through the electrolyte to dissolve the workpiece in the electrolyte.

[0065] S4. The blade-shaped tool is fed relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning on the workpiece.

[0066] This invention first designs a sheet-like cutting tool with front and rear walls that are single flat surfaces and thin sidewalls, thus forming a sheet-like structure. The planar structure of the front wall allows for uniform flow of electrolyte. Compared to traditional electrolytic turning, which uses a conventional forward spraying method to directly spray electrolyte onto the workpiece, this invention allows the workpiece to contact the electrolyte by having the front wall in contact with the workpiece. This results in a more uniform electrolyte flow rate, a more uniform and controllable machining area, and the planar structure of the wall increases the machining area where the electrolyte dissolves the workpiece. Finally, this invention links the rotational motion of the workpiece with the feed motion of the sheet-like cutting tool to perform electrolytic turning, improving electrolytic turning efficiency and enabling the machining of workpieces into various complex shapes, thus enhancing the adaptability of electrolytic turning.

[0067] In one specific embodiment, the present invention is based on the principle of electrochemical anodic dissolution, and uses a blade-shaped tool to perform electrolytic machining on a rotating workpiece. The workpiece rotates around its own axis, and the blade-shaped tool feeds relative to the rotating workpiece. The rotation speed of the rotating workpiece around its own axis is 0 rpm to 3000 rpm, the feed speed of the blade-shaped tool relative to the rotating workpiece is 0 mm / min to 5 mm / min, and the machining gap between the blade-shaped tool and the rotating workpiece is 0.01 mm to 2 mm.

[0068] Specifically, refer to Figure 2 The second embodiment of the present invention provides a sheet cathode electrolytic turning system, applicable to a sheet cathode electrolytic turning method as described in any embodiment of the first aspect. The system includes a turning machine tool 2, a sheet cutting tool 3, a liquid storage chamber 4, a first pressure pump 5, a pulse power supply 6, and a control module; wherein:

[0069] The turning machine tool 2 is used to place the workpiece 1 and to make the workpiece 1 rotate around its own axis;

[0070] The top of the blade 3 is provided with a liquid storage cavity 4, which stores electrolyte, and an outlet slit is provided outside the liquid storage cavity 4.

[0071] The control module uses the first pressure pump 5 to pump the electrolyte out of the storage chamber 4 through the outlet slit, and then spray it onto the top of the front wall, so that the front wall comes into contact with the workpiece 1, thereby bringing the workpiece 1 into contact with the electrolyte.

[0072] The positive terminal of the pulse power supply 6 is electrically connected to the workpiece 1, and the negative terminal of the pulse power supply 6 is electrically connected to the blade 3; the pulse power supply 6 is used to pass electricity to the electrolyte with the workpiece 1 as the anode and the blade 3 as the cathode, so that the workpiece 1 is dissolved by the electrolyte.

[0073] The control module is used to make the blade-shaped tool 3 feed relative to the workpiece 1, thereby linking the rotational motion of the workpiece 1 with the feed motion of the blade-shaped tool 3 to perform electrolytic turning on the workpiece 1.

[0074] In one specific embodiment, the liquid outlet slit is flush with the front wall surface so that the electrolyte can be sprayed close to the front wall surface and flow downward along the front wall surface.

[0075] In this implementation, continuously spraying electrolyte onto the top of the front wall surface facilitates the formation of a high-speed jet of electrolyte that flows rapidly and uniformly from top to bottom along the front wall surface. This results in a uniform electrolyte flow layer covering the entire surface of the front wall, increasing the processing area for dissolving the workpiece 1. The workpiece in contact with the electrolyte flow layer can be uniformly dissolved during rotation and feed movements. Furthermore, the electrolyte can more efficiently flush away the electrolytic products generated during the dissolution of the workpiece 1, thereby improving the material removal rate and processing quality of the workpiece 1 and greatly enhancing processing efficiency and stability.

[0076] In some possible embodiments, the front wall surface can be fed relative to the workpiece 1 in a horizontal or relatively inclined manner to achieve the processing of workpieces of different shapes.

[0077] refer to Figure 3 In one specific embodiment, the front wall surface is milled perpendicular to the horizontal surface of the workpiece 1. The blade-shaped cutter 3 is positioned perpendicular to the horizontal surface, causing the electrolyte to be sprayed towards the top of the front wall surface under the external force of the first pressure pump 5. This forms a high-speed jet that flows rapidly and uniformly downwards along the front wall surface. Furthermore, it is subjected to the downward force of gravity, resulting in a more uniform electrolyte flow layer covering the entire surface of the front wall. This increases the processing area and stability of the electrolyte-dissolved workpiece, and facilitates more efficient flushing and removal of electrolytic products generated during workpiece dissolution, significantly improving processing efficiency and yield.

[0078] In addition, a liquid storage cavity 4 is provided at the top of the blade 3, which facilitates the continuous spraying of electrolyte from the liquid storage cavity 4 through the liquid outlet slit to the top of the front wall, forming a uniform and continuous electrolyte flow that covers the surface of the front wall.

[0079] Further, the rotational direction of the workpiece 1 is the same as the flow direction of the electrolyte; the step of using the workpiece 1 as the anode and the sheet-shaped cutter 3 as the cathode to pass electricity to the electrolyte, thereby causing the workpiece 1 to be dissolved by the electrolyte, includes:

[0080] The workpiece 1 is dissolved by the electrolyte to produce electrolytic products;

[0081] The electrolytic products are accelerated and thrown away by the workpiece 1 under the centrifugal force of the rotational motion, and are thus carried by the electrolyte to flow downward along the front wall and discharged to the bottom of the front wall.

[0082] In this embodiment, on the tangential plane where the workpiece 1 is tangent to the front wall surface, both the rotation direction of the workpiece 1 and the flow direction of the electrolyte point towards the bottom of the front wall surface. Under the action of the centrifugal force of the rotating motion of the workpiece 1, the electrolytic products are accelerated and thrown off, thereby accelerating their flushing and discharge by the electrolyte, achieving more efficient flushing and removal of the electrolytic products.

[0083] refer to Figure 2 Furthermore, the system also includes a first turbid liquid storage tank 7, a first control valve 8, a second turbid liquid storage tank 9, a clear liquid storage tank 10, a second pressure pump 11, a filter 12, a third pressure pump 13, a second control valve 14, and a pressure gauge 15; wherein:

[0084] The first turbid liquid storage tank 7 is disposed below the front wall surface and is used to recover and store the electrolyte and the electrolysis products as turbid liquid.

[0085] The first turbid liquid storage tank 7 delivers turbid liquid to the second turbid liquid storage tank 9 through the first control valve 8;

[0086] The second turbid liquid storage tank 9 is connected to the clear liquid storage tank 10 via the second pressure pump 11 and the filter 12;

[0087] The control module pumps the turbid liquid from the second turbid liquid storage tank to the filter 12 through the second pressure pump 11, so that the turbid liquid is filtered into clear liquid, and then the clear liquid is pumped to the clear liquid storage tank 10;

[0088] The clear liquid storage tank 10 is connected to the liquid storage chamber 4 via the third pressure pump 13;

[0089] The control module pumps the clear liquid from the clear liquid storage tank 10 to the liquid storage chamber 4 via the third pressure pump 13.

[0090] The pressure gauge 15 reflects the pressure value of the connecting pipe between the liquid storage chamber 4 and the clear liquid storage tank. By controlling the first pressure pump 5, the third pressure pump 13 and the second control valve 14, the pressure value between the liquid storage chamber 4 and the clear liquid storage tank can be adjusted, thereby maintaining the continuous high-speed spraying of electrolyte onto the front wall surface.

[0091] This embodiment filters the turbid liquid discharged from the bottom of the front wall into clear liquid and recovers it to the storage chamber 4, which improves the utilization rate of electrolyte and reduces the pollution products of electrolytic turning. It has the benefits of high input-output ratio and green environmental protection for the turning of workpiece 1.

[0092] Further, refer to Figure 3 and Figure 4 The step of causing the blade-shaped tool 3 to perform a feed motion relative to the workpiece 1, thereby linking the rotational motion of the workpiece 1 with the feed motion of the blade-shaped tool 3 to perform electrolytic turning of the workpiece 1, includes:

[0093] The plane containing the front wall surface is parallel to the axis of the workpiece 1, so that the blade-shaped tool 3 makes a radial feed motion relative to the workpiece 1.

[0094] like Figure 3 and Figure 4 As shown, the outlet slit outside the liquid storage chamber 4 is aligned with the blade-shaped tool 3, causing the electrolyte to flow downwards along the front wall of the blade-shaped tool 3, forming a wall-attached jet. The tangent line between the circular workpiece 1 and the blade-shaped tool 3 forms the electrolytic machining zone. As the workpiece 1 rotates around its own axis, the material of the workpiece 1 passing through the electrolytic machining zone is dissolved by the electrolyte, and then feeds along the feed direction with the blade-shaped tool 3, completing the turning of the outer diameter, cutting off, or turning of the end face of the workpiece 1.

[0095] On the tangential plane between the blade 3 and the workpiece 1, the rotation direction of the rotary tool is the same as the direction of electrolyte flow, both being vertically downward. Under the action of the centrifugal force of the rotating workpiece 1, the electrolytic products are accelerated and thrown off, thereby accelerating their flushing and discharge by the electrolyte, achieving more efficient flushing and removal of the electrolytic products.

[0096] Specifically, the blade-shaped tool 3 performs radial feed motion relative to the rotating workpiece 1. The rotation axis of the rotating workpiece 1 is spatially perpendicular to the feed direction of the blade-shaped tool 3, and they move towards each other. The area near the theoretical tangent line between the plane of the blade-shaped tool 3 and the cylindrical surface of the workpiece 1 serves as the electrolytic machining zone. During the electrolytic turning of the rotating workpiece 1, high-flow-rate electrolyte is continuously transported along the machining surface of the cathode tool to the electrolytic turning machining zone. The electrolytic products are evenly distributed and rapidly discharged under the action of the fresh electrolyte and the centrifugal force of the rotating workpiece 1.

[0097] This implementation method is applicable to turning the outer diameter, cutting off, or facing the workpiece 1. Specifically, for turning the outer diameter, the blade-shaped tool 3 feeds radially relative to the workpiece 1, cooperating with the rotation of the workpiece 1, to gradually remove material from the outer surface of the workpiece 1, thereby reducing the diameter of the workpiece 1 and obtaining a cylindrical surface, thus achieving the turning of the outer diameter. For cutting off, the blade-shaped tool 3 feeds radially relative to the workpiece 1, cooperating with the rotation of the workpiece 1, to remove a whole piece of material radially from the workpiece 1, dividing the workpiece 1 into two, thus achieving the cutting off. For facing the end, the blade-shaped tool 3 feeds radially relative to the workpiece 1, cooperating with the rotation of the workpiece 1, to gradually cut out a flat, smooth plane perpendicular to the axis of the workpiece 1.

[0098] Further, refer to Figure 5 and Figure 6 The step of causing the blade-shaped tool 3 to perform a feed motion relative to the workpiece 1, thereby linking the rotational motion of the workpiece 1 with the feed motion of the blade-shaped tool 3 to perform electrolytic turning of the workpiece 1, includes:

[0099] The plane containing the front wall intersects perpendicularly with the axis of the workpiece 1, so that the blade-shaped tool 3 makes a feed motion relative to the axial direction of the workpiece 1.

[0100] like Figure 5 and Figure 6 As shown, the outlet slit outside the liquid storage chamber 4 is aligned with the blade-shaped cutter 3, causing the electrolyte to flow downwards along the front wall of the blade-shaped cutter 3, forming a wall-attached jet. The contact surface between the plane of the circular workpiece 1 and the blade-shaped cutter 3 forms the electrolytic machining zone. As the workpiece 1 rotates around its own axis, the material of the workpiece 1 passing through the electrolytic machining zone is dissolved by the electrolyte, and then feeds along the feed direction with the blade-shaped cutter 3, completing the turning of the outer diameter of the workpiece 1.

[0101] On the tangential plane between the blade 3 and the workpiece 1, the rotation direction of the rotary tool is the same as the direction of electrolyte flow, both being vertically downward. Under the action of the centrifugal force of the rotating workpiece 1, the electrolytic products are accelerated and thrown off, thereby accelerating their flushing and discharge by the electrolyte, achieving more efficient flushing and removal of the electrolytic products.

[0102] Specifically, the blade-shaped tool 3 moves axially relative to the rotating workpiece 1, and the axis of rotation of the rotating workpiece 1 is spatially parallel to the feed direction of the blade-shaped tool 3. The front wall surface of the blade-shaped tool 3, i.e., the theoretical intersection area between the cathode machining surface and the anode rotating workpiece 1 cross section in the figure, serves as the electrolytic machining zone. During the electrolytic turning of the rotating workpiece 1, high-flow-rate electrolyte is continuously transported along the machining surface of the cathode tool to the electrolytic turning machining zone. The electrolytic products are evenly distributed and rapidly discharged under the action of the fresh electrolyte flushing and the centrifugal force of the rotating workpiece 1.

[0103] This implementation method is applicable to turning the outer diameter of workpiece 1. Specifically, the blade-shaped tool 3 makes a feed motion relative to the axial direction of the workpiece 1, which, in conjunction with the rotational motion of the workpiece 1, gradually removes material from the outer surface of the workpiece 1 to reduce the diameter of the workpiece 1, obtain a cylindrical surface, and realize the turning of the outer diameter.

[0104] Further, refer to Figure 7 and Figure 8 The step of causing the blade-shaped tool 3 to perform a feed motion relative to the workpiece 1, thereby linking the rotational motion of the workpiece 1 with the feed motion of the blade-shaped tool 3 to perform electrolytic turning of the workpiece 1, includes:

[0105] The plane containing the front wall intersects with but is not perpendicular to the axis of the workpiece 1, so that the blade-shaped tool 3 can simultaneously perform radial and axial feed movements relative to the workpiece 1.

[0106] like Figure 7 and Figure 8 As shown, the outlet slit outside the liquid storage chamber 4 is aligned with the blade-shaped tool 3, causing the electrolyte to flow downwards along the front wall of the blade-shaped tool 3, forming a wall-attached jet. The tangent line between the workpiece 1 and the blade-shaped tool 3 forms the electrolytic machining zone. As the workpiece 1 rotates around its own axis, the material of the workpiece 1 passing through the electrolytic machining zone is dissolved by the electrolyte, and as the blade-shaped tool 3 feeds along the feed direction, the turning of the outer diameter of the workpiece 1 is completed.

[0107] On the tangential plane between the blade 3 and the workpiece 1, the rotation direction of the rotary tool is the same as the direction of electrolyte flow, both being vertically downward. Under the action of the centrifugal force of the rotating workpiece 1, the electrolytic products are accelerated and thrown off, thereby accelerating their flushing and discharge by the electrolyte, achieving more efficient flushing and removal of the electrolytic products.

[0108] Specifically, the blade-shaped tool 3 simultaneously performs radial and axial feed movements relative to the rotating workpiece 1, with the rotation axis of the workpiece 1 and the feed direction of the blade-shaped tool 3 spatially intersecting. The area near the theoretical tangent line between the plane of the blade-shaped tool 3 and the conical surface of the workpiece 1 serves as the electrolytic machining zone. During the electrolytic turning of the rotating workpiece 1, high-flow-rate electrolyte is continuously transported along the front wall of the blade-shaped tool 3 to the electrolytic turning zone. The electrolytic products are evenly distributed and rapidly discharged under the action of the fresh electrolyte and the centrifugal force of the rotating workpiece 1.

[0109] This implementation method is applicable to turning chamfers or turning truncated cones on workpiece 1. Specifically, for turning chamfers, the blade-shaped tool 3 simultaneously feeds relative to the radial and axial directions of the workpiece 1, cutting a bevel at the edge of the workpiece 1 to achieve the turning chamfer. For turning truncated cones, the blade-shaped tool 3 simultaneously feeds relative to the radial and axial directions of the workpiece 1, machining a truncated cone with a constant slope on the rotating workpiece 1 to achieve the turning truncated cone.

[0110] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0111] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; however, any combination of these technical features that does not contradict each other should be considered within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the concept of this application, and these improvements and substitutions should also be considered within the scope of protection of this invention. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A method for electrolytic turning of a sheet cathode, characterized in that, include: Provide a workpiece and cause the workpiece to rotate about its own axis; A blade-shaped cutting tool is provided, an electrolyte flows on the front wall surface of the blade-shaped cutting tool, and the front wall surface is brought into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte. Using the workpiece as the anode and the sheet-shaped cutter as the cathode, current is passed through the electrolyte, thereby dissolving the workpiece in the electrolyte; The blade-shaped tool is fed relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning on the workpiece.

2. The method for electrolytic turning of a sheet cathode according to claim 1, characterized in that, The process of flowing electrolyte on the front wall surface of the blade-shaped tool and bringing the front wall surface into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte, includes: Electrolyte is continuously sprayed onto the top of the front wall surface so that the electrolyte flows downward along the front wall surface, thereby bringing the workpiece into contact with the electrolyte. The step of using the workpiece as the anode and the sheet-shaped cutter as the cathode to pass electricity to the electrolyte, thereby causing the workpiece to be dissolved by the electrolyte, includes: The workpiece is dissolved by the electrolyte to produce electrolytic products; The electrolyte carries the electrolysis products downward along the front wall surface, thereby flowing to the bottom of the front wall surface for discharge.

3. The method for electrolytic turning of a sheet cathode according to claim 2, characterized in that, The electrolyte carries the electrolysis products downward along the front wall surface, thereby flowing to the bottom end of the front wall surface for discharge, including: The rotational motion of the workpiece is in the same direction as the flow direction of the electrolyte; The electrolytic products are accelerated away from the workpiece by the centrifugal force of the rotating motion, and are thus carried by the electrolyte to flow downward along the front wall and discharged at the bottom of the front wall.

4. The method for electrolytic turning of a sheet cathode according to claim 2, characterized in that, The top of the blade-shaped cutter is provided with a liquid storage cavity, the liquid storage cavity stores electrolyte, and a liquid outlet slit is provided outside the liquid storage cavity; the electrolyte flowing on the front wall surface of the blade-shaped cutter includes: The electrolyte is pumped out from the storage cavity through the outlet slit and then sprayed onto the top of the front wall surface; The electrolyte carries the electrolysis products downwards along the front wall, and after flowing to the bottom of the front wall and being discharged, it further includes: The electrolyte and the electrolysis products are recovered as turbid liquid, and the turbid liquid is filtered into a clear liquid, which is then added to the storage chamber.

5. The method for electrolytic turning of a sheet cathode according to claim 1, characterized in that, The step of causing the blade-shaped tool to feed relative to the workpiece, thereby coordinating the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning of the workpiece, includes: The plane containing the front wall is parallel to the axis of the workpiece, so that the blade-shaped tool can make a radial feed motion relative to the workpiece.

6. The method for electrolytic turning of a sheet cathode according to claim 1, characterized in that, The step of causing the blade-shaped tool to feed relative to the workpiece, thereby coordinating the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning of the workpiece, includes: The plane containing the front wall intersects the workpiece axis perpendicularly, so that the blade-shaped tool can make a feed motion relative to the axial direction of the workpiece.

7. The method for electrolytic turning of a sheet cathode according to claim 1, characterized in that, The step of causing the blade-shaped tool to feed relative to the workpiece, thereby coordinating the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning of the workpiece, includes: The plane containing the front wall intersects with but is not perpendicular to the axis of the workpiece, so that the blade-shaped tool can simultaneously perform radial and axial feed movements relative to the workpiece.

8. A sheet cathode electrolytic turning system, characterized in that, An electrolytic turning method for sheet cathodes as described in any one of claims 1 to 7 is applicable, the system comprising a turning machine tool, a sheet cutting tool, a liquid storage chamber, a first pressure pump, a pulse power supply, and a control module; wherein: The turning machine tool is used to place the workpiece and make the workpiece rotate about its own axis; The top of the blade is provided with a liquid storage cavity, which stores electrolyte, and an outlet slit is provided outside the liquid storage cavity; The control module uses the first pressure pump to pump the electrolyte out of the storage chamber through the outlet slit, and then spray it onto the top of the front wall, so that the front wall comes into contact with the workpiece, thereby bringing the workpiece into contact with the electrolyte. The positive terminal of the pulse power supply is electrically connected to the workpiece, and the negative terminal of the pulse power supply is electrically connected to the blade-shaped tool; the pulse power supply is used to pass electricity to the electrolyte with the workpiece as the anode and the blade-shaped tool as the cathode, thereby causing the workpiece to be dissolved by the electrolyte; The control module is used to make the blade-shaped tool feed relative to the workpiece, thereby linking the rotational motion of the workpiece with the feed motion of the blade-shaped tool to perform electrolytic turning on the workpiece.

9. The sheet cathode electrolytic turning system according to claim 8, characterized in that, The rotational motion of the workpiece is in the same direction as the flow of the electrolyte; the step of using the workpiece as the anode and the sheet-shaped cutter as the cathode to pass electricity to the electrolyte, thereby dissolving the workpiece in the electrolyte, includes: The workpiece is dissolved by the electrolyte to produce electrolytic products; The electrolytic products are accelerated away from the workpiece by the centrifugal force of the rotating motion, and are thus carried by the electrolyte to flow downward along the front wall and discharged at the bottom of the front wall.

10. The sheet cathode electrolytic turning system according to claim 9, characterized in that, It also includes a second pressure pump, a third pressure pump, a filter, a turbid liquid storage tank, and a clear liquid storage tank; wherein: The turbid liquid storage tank is located below the front wall surface and is used to recover and store the electrolyte and the electrolysis products as turbid liquid. The turbid liquid storage tank is connected to the clear liquid storage tank via the second pressure pump and the filter; The control module pumps the turbid liquid from the turbid liquid storage tank to the filter through the second pressure pump, so that the turbid liquid is filtered into clear liquid, and then the clear liquid is pumped to the clear liquid storage tank. The clear liquid storage tank is connected to the liquid storage chamber via the third pressure pump; The control module pumps the clear liquid from the clear liquid storage tank to the liquid storage chamber via the third pressure pump.

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