Cathode and anode integrated conductive plate structure for electropolishing production line and electropolishing method

Abstract

The invention belongs to the technical field of metal part surface treatment, and relates to a cathode and anode integrated conductive plate structure for an electropolishing production line and an electropolishing method, a first V-shaped seat and a second V-shaped seat with positive polarity and a third V-shaped seat with negative polarity isolated by an insulating part are integrated on the same conductive plate body, and integration of cathode and anode power supply is realized. Due to the design, the positive electrode assembly can be directly used when the outer surface of the production line is polished; when the inner surface and the outer surface need to be synchronously polished, only the auxiliary cathode needs to be connected to the tool from the lead interface of the third V-shaped seat, and the machine does not need to be stopped to replace a flying bar or switch the polarity of a power supply, so that the production flexibility and the operation efficiency of a production line are greatly improved, and rapid and seamless switching among different processes is realized; and meanwhile, the reliable isolation between positive and negative polarities is ensured by the insulating part, and the operation safety and reliability under a high-current working condition are ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of metal part surface treatment, and relates to a cathode and anode common body flying bar structure for an electro-polishing production line and an electro-polishing method. BACKGROUND

[0002] Currently, in the electro-polishing surface treatment industry, a professional production line generally adopts an electrolytic polishing process mode for a single surface of a part. Such a production line is usually designed to only process one of the outer surface or the inner surface of the part, thereby simplifying the device configuration and operation process. In this conventional mode, the flying bar structure used is usually designed in a single positive electricity mode, that is, only the part is connected as an anode to the circuit. Although this method meets the efficiency requirements of single surface polishing, it also limits the process adaptability of the production line, making it unable to flexibly process complex parts that require electro-polishing of both the inner and outer surfaces.

[0003] With the continuous improvement of the performance requirements of parts in the manufacturing industry, many fields such as medical devices and chemical containers have put forward technical requirements that both the inner and outer surfaces of cylindrical or tubular parts need to be electro-polished. In the face of such demand, the existing single surface electro-polishing production line has obvious shortcomings. When such parts need to be processed, the operator must interrupt production, reconfigure the power polarity, switch the part originally connected as an anode to a cathode, or rely on auxiliary cathodes on the tooling to build a complete current loop. This cumbersome process conversion not only greatly reduces production efficiency and increases operational complexity, but also easily leads to unstable product quality due to human operation errors, severely restricting the application and promotion of electro-polishing technology for complex structure parts.

[0004] Therefore, the flying bar structure in the prior art has obvious functional defects, and its single electricity adding mode cannot meet the process requirements of synchronous electro-polishing of the inner and outer surfaces. This limitation forces enterprises to either invest in the construction of multiple dedicated production lines to process different surfaces, or bear the efficiency loss and quality risk caused by frequent process switching. SUMMARY

[0005] In view of the problems existing in the prior art, the present application proposes a cathode and anode common body flying bar structure for an electro-polishing production line and an electro-polishing method, which solves the application problem of the two kinds of inner and outer surface electro-polishing parts in the prior art in the same electro-polishing production line, uses a new type of flying bar structure, and connects the auxiliary cathode terminal on the flying bar. It is novel, simple in structure, easy to operate, safe and reliable, suitable for use on a stainless steel electro-polishing production line, and can solve the problems of electro-polishing of both the outer surface of the part and the inner and outer surfaces of the part at one time.

[0006] The present application is realized by the following technical solutions: A kind of anode and cathode common body flying bar structure for electropolishing production line, comprising: V-shaped seat assembly, frame rod and insulating piece; V-shaped seat assembly includes first V-shaped seat, second V-shaped seat and third V-shaped seat; The first V-shaped seat is arranged at one end of the frame rod, and the insulating piece and the second V-shaped seat are arranged on the two sides of the other end of the frame rod respectively; The third V-shaped seat is arranged on the insulating piece;The insulating piece electrically insulates the third V-shaped seat from the frame rod; The first V-shaped seat and the second V-shaped seat serve as positive polarity assembly and contact the positive pole of the polishing power supply; The third V-shaped seat serves as negative polarity assembly and contacts the negative pole of the polishing power supply; The third V-shaped seat is provided with a lead interface connected with auxiliary cathode.

[0007] Preferably, the material of the first V-shaped seat, the second V-shaped seat and the third V-shaped seat is red copper; The material of the frame rod is red copper.

[0008] Preferably, the first V-shaped seat and the second V-shaped seat are fixedly connected with the frame rod by means of slotting and screw fastening.

[0009] Preferably, the insulating piece is Z-shaped structure, and the third V-shaped seat and the frame rod are fastened and connected by screws.

[0010] Preferably, the material of the insulating piece is electrician insulating ebonite; Preferably, the first V-shaped seat, the second V-shaped seat and the third V-shaped seat jointly constitute a support plane and are installed in cooperation with the production line slot power supply base.

[0011] Preferably, the frame rod is connected with a lifting hook.

[0012] Preferably, the lead interface is a fastening screw arranged on the third V-shaped seat and used for crimping auxiliary cathode lead wire.

[0013] A method for realizing synchronous electropolishing of inner and outer surfaces of metal parts, comprising the following steps: Mounting the electropolishing tool on the frame rod; Connecting the first V-shaped seat and the second V-shaped seat of the flying bar with the positive pole of the polishing power supply, and connecting the third V-shaped seat with the negative pole of the polishing power supply; Connecting the lead interface on the third V-shaped seat with the auxiliary cathode lead wire of the electropolishing tool; Immersing the flying bar structure with the parts into the electropolishing tank, starting the power supply, and simultaneously electropolishing the inner and outer surfaces of the parts.

[0014] Preferably, during the electro-polishing process, the cathode plate in the electro-polishing tank is connected with the negative pole of the power supply, and the auxiliary cathode and the cathode plate jointly form a cathode loop for polishing the outer surface of the part.

[0015] Compared with the prior art, the present application has the following beneficial technical effects: The present application provides a cathode and anode common flybar structure for an electro-polishing production line, which effectively solves the problem that the existing electro-polishing production line cannot flexibly and compatibly polish the outer surface and the inner and outer surfaces of a part. Through innovative structural design, the first and second positive V-shaped seats and the third V-shaped seat isolated by an insulating piece are integrated on the same flybar body, realizing the integration of cathode and anode power supply. This design allows the production line to directly use the positive assembly when only polishing the outer surface, and only needs to connect the auxiliary cathode to the tooling from the lead interface of the third V-shaped seat when synchronous polishing of the inner and outer surfaces is required, without the need to stop production, replace the flybar, or reverse the polarity of the power supply, greatly improving the production flexibility and operation efficiency of the production line, and realizing rapid and seamless switching between different processes. At the same time, the insulating piece ensures reliable isolation between the positive and negative polarities, ensuring operation safety and reliability under high current conditions. The flybar structure is simple and easy to operate, realizes novel and simple structure, reliable electrical connection, easy operation, and reliable positive and negative polarity insulation protection function requirements, solves the different requirements of polishing power supply positive and negative poles for polishing the outer surface of a stainless steel part and polishing the inner and outer surfaces of a part, and allows the key parts of the vacuum arc chamber, such as the shielding cylinder, to be polished on the inner surface or the inner and outer surfaces without reversing the flybar.

[0016] Further, the present application adopts a Z-shaped insulating piece structure, which effectively increases the leakage path length, i.e. the creepage distance, between the frame rod and the third V-shaped seat, significantly improving the insulation reliability of the flybar in humid and electrolyte mist droplet-containing harsh working conditions, and effectively preventing surface flashover or breakdown accidents that may occur between the positive and negative electrodes. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 The present application provides a cathode and anode common flybar structure for an electro-polishing production line; Figure 2 The present application provides a cathode and anode common flybar structure for an electro-polishing production line, which effectively solves the problem that the existing electro-polishing production line cannot flexibly and compatibly polish the outer surface and the inner and outer surfaces of a part. Through innovative structural design, the first and second positive V-shaped seats and the third V-shaped seat isolated by an insulating piece are integrated on the same flybar body, realizing the integration of cathode and anode power supply. This design allows the production line to directly use the positive assembly when only polishing the outer surface, and only needs to connect the auxiliary cathode to the tooling from the lead interface of the third V-shaped seat when synchronous polishing of the inner and outer surfaces is required, without the need to stop production, replace the flybar, or reverse the polarity of the power supply, greatly improving the production flexibility and operation efficiency of the production line, and realizing rapid and seamless switching between different processes. At the same time, the insulating piece ensures reliable isolation between the positive and negative polarities, ensuring operation safety and reliability under high current conditions. The flybar structure is simple and easy to operate, realizes novel and simple structure, reliable electrical connection, easy operation, and reliable positive and negative polarity insulation protection function requirements, solves the different requirements of polishing power supply positive and negative poles for polishing the outer surface of a stainless steel part and polishing the inner and outer surfaces of a part, and allows the key parts of the vacuum arc chamber, such as the shielding cylinder, to be polished on the inner surface or the inner and outer surfaces without reversing the flybar. Figure 3 This is an assembly drawing of the present invention for realizing the synchronous electropolishing of the inner and outer surfaces of metal parts; In the diagram: 1. First V-shaped seat; 2. Lifting hook; 3. Second V-shaped seat; 4. Third V-shaped seat; 5. Insulating component; 6. Frame pole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Currently, most electropolishing production lines are designed for electropolishing of parts (either a single inner or outer surface). This eliminates the need to reverse the power supply polarity after the outer surface electropolishing is complete before processing parts with an inner surface electropolishing. However, if a company has different requirements for the parts, such as electropolishing the inner and outer surfaces of cylindrical parts, the tooling has an auxiliary cathode. The part is connected to the positive terminal of the equipment power supply, and the negative terminal of the equipment power supply must be connected to the auxiliary cathode terminal of the tooling. The original flybar power supply structure (the flybar is only positively charged) used only for electropolishing outer surface parts is no longer suitable for this process. This invention proposes a flybar structure with coexisting anode and cathode for electropolishing production lines. This solves the problem of applying power to both inner and outer surface electropolishing parts on the same electropolishing production line by using a new flybar structure with an auxiliary cathode terminal led out from the flybar.

[0021] The purpose of this invention is to provide a flybar structure with coexisting anode and cathode for electropolishing production lines, in order to solve the problem of the difference in negative electrode polarity that needs to be considered when electropolishing the inner or outer surface of key components in miniaturized vacuum interrupters, so as to achieve the correct connection of positive and negative electrodes according to the process during the electropolishing of components.

[0022] In a flybar structure with coexisting anode and cathode for an electropolishing production line, such as Figure 1 As shown, it includes a first V-shaped seat 1, a second V-shaped seat 3 and a third V-shaped seat 4, an insulating component 5 which is a Z-shaped insulating component, a support rod 6 for hanging electropolishing fixtures, a lifting hook 2 which is a lifting hook for docking with the electropolishing production line trolley, and the rest are stainless steel screws for connection and fastening.

[0023] The main body of the flybar consists of the first V-shaped seat 1, the second V-shaped seat 3, and a support rod 6, which are in contact with the positive terminal of the polishing power supply and are all made of copper. The third V-shaped seat 4 is the negative polarity of the power supply on the flybar, and it is also made of copper. The insulating part 5 has a Z-shaped structure, which connects the three V-shaped seats 4 and the support rod 6. The first V-shaped seat 1, the second V-shaped seat 3 and the third V-shaped seat 4 complete the support of the flybar on a plane, and cooperate with the power supply base at the slot of the production line. The positive and negative terminals of the power supply can be directly applied to both ends of the flybar through the base. The auxiliary cathode wire is led out from the screw on the third V-shaped seat 4 and used as the auxiliary cathode terminal for connecting the shielding cylinder of the electropolishing vacuum interrupter. The wire can be removed when polishing the outer surface.

[0024] Note that regardless of whether the inner or outer surface is polished, the insulating part 5 must always have reliable electrical insulation performance. The material of this part is electrical insulating bakelite. The support rod 6 is connected to two lifting hooks 2 of the electropolishing production line crane. The two lifting hooks 2 are symmetrically installed on the support rod 6 by screws. They are made of corrosion-resistant 316L stainless steel and are used to lift and move the flyer with tooling to different process tanks in the production line for processing.

[0025] This invention enables the use of a single flybar to complete the electrolytic polishing of the outer surface of a part, and also allows the equipment to power the flybar in the same way when polishing the inner surface and both inner and outer surfaces of the part, thus achieving the reliable requirements for the insulation and protection of the electropolishing electrode and facilitating the connection of the auxiliary cathode to the negative terminal of the power supply.

[0026] When electropolishing the outer surface of a part, simply hang the polishing fixture on the support rod 6, and clamp the part onto the fixture to achieve a positive charge on the part at the polishing tank position. When electropolishing the inner surface and simultaneously the inner and outer surfaces of the part, lead an auxiliary cathode wire from the fastening screw of the third V-shaped seat 4 and connect it to the corresponding auxiliary cathode terminal of the fixture to achieve electropolishing of the inner surface of the part in the polishing tank. Note that the flybar must ensure the reliable insulation performance of the insulating component 5. Figure 2 This is its standard three-view structural diagram.

[0027] Furthermore, this invention employs a Z-shaped insulation structure, whose unique geometry effectively increases the leakage path length of current from the support rod to the third V-shaped seat, i.e., the creepage distance. This significantly improves the insulation reliability of the flybar under harsh conditions such as humidity and the presence of electrolyte droplets, effectively preventing surface flashover or breakdown accidents that may occur between the positive and negative electrodes. Simultaneously, the Z-shaped structure itself possesses good bending and torsional stiffness, providing more stable mechanical support for the third V-shaped seat during frequent lifting, moving, and placement of the flybar. This effectively resists stress caused by impacts or long-term use, ensuring the long-term reliability of the insulation connection and the overall structural stability of the flybar. Thus, it achieves a simultaneous improvement in safety and durability under complex operating conditions. This invention employs a flybar structure with coexisting anode and cathode for electropolishing production lines. It achieves a novel and simple structure, reliable electrical connection, convenient operation, and reliable positive and negative polarity insulation protection. It solves the different requirements for the positive and negative polarities of the polishing power supply when electropolishing the outer surface and inner / outer surfaces of stainless steel parts on an electropolishing production line. This allows for the electropolishing of key components of the vacuum interrupter, such as the shielding cylinder, of the inner surface or simultaneous inner and outer surfaces without switching flybars. The conductive materials used in this invention are all copper, the hook 2 and other standard screws are all made of 316L stainless steel, and the insulating component 5 is electrical insulating bakelite.

[0028] A type of flybar with coexisting anode and cathode for electropolishing production lines utilizes a bolt-type clamping structure or square tubing as a tooling hanger. For sheet metal and metal parts with polished outer surfaces, electropolishing can be performed on the flybar simply by attaching the positive electrode during polishing.

[0029] This invention provides a method for simultaneously electropolishing the inner and outer surfaces of metal parts, comprising the following steps: Hang the electropolishing fixture on the support pole 6; Connect the first V-shaped seat 1 and the second V-shaped seat 3 of the flybar to the positive terminal of the polishing power supply, and connect the third V-shaped seat 4 to the negative terminal of the polishing power supply. Connect the lead interface on the third V-shaped seat 4 to the auxiliary cathode lead of the electropolishing fixture; The flybar structure with the parts attached is immersed in the electropolishing tank, the power is turned on, and the inner and outer surfaces of the parts are electropolished simultaneously.

[0030] like Figure 3As shown, the V-shaped seat on the right is connected to the positive terminal of the polishing power supply. This allows the shielding cylinder to be positively charged via the hanger. The auxiliary cathode is connected to the negative V-shaped seat, and both cathode plates on either side are also connected to the negative terminal of the polishing power supply. Thus, once the crane places the flybar onto the V-shaped seat in the polishing tank, the polishing power supply is automatically switched on. The inner and outer surfaces of the shielding cylinder can be electropolished simultaneously, resulting in highly efficient operation. For parts with outer surfaces being polished, no auxiliary cathode or lead wire is needed; the parts can be hung directly on the machine.

[0031] During the electropolishing process, the cathode plate in the electropolishing tank is connected to the negative terminal of the power supply, and together with the auxiliary cathode, they form a cathode circuit for polishing the outer surface of the part.

[0032] The electropolishing production line of the present invention uses a flybar with both anode and cathode. For metal parts such as shielding cylinders for arc extinguishing chambers and similar cylinders, which require polishing of both inner and outer surfaces, the flybar can achieve simultaneous polishing of both inner and outer surfaces in a single run on the polishing production line. The negative electrode leads out a jumper wire to connect to the auxiliary cathode, and the flybar frame is automatically connected to the positive power supply at this time.

[0033] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1 See Figure 1 and Figure 2 The flying bar structure is mainly composed of the following components: The frame pole 6 serves as the main load-bearing structure and main conductor of the flybar. In this embodiment, it is made of a square-section copper tube, which combines good conductivity, rigidity and lightweight.

[0035] First V-shaped seat 1, second V-shaped seat 3: The two V-shaped seats are connected to both ends of the support rod 6 through slots provided on them, and are fastened with 316L stainless steel screws. These two V-shaped seats are also made of copper, and together with the support rod 6, they form a whole with excellent electrical conductivity, namely the positive polarity component.

[0036] The third V-shaped seat 4 is also made of copper. Its structure is similar to that of the first V-shaped seat 1 and the second V-shaped seat 3, but its function and purpose are completely different.

[0037] The insulating component 5 is made of electrical insulating bakelite with high mechanical strength and reliable insulation performance. It is Z-shaped, with one end fastened to the side of the support rod 6 by screws, and the other end fastened to the third V-shaped seat 4 by screws. This design allows the third V-shaped seat 4 to be firmly installed on the support rod 6 mechanically, but completely isolated from the entire positive polarity component electrically, thus forming an independent negative polarity component.

[0038] Lifting hook 2 consists of two lifting hooks symmetrically mounted on the support rod 6 with screws. They are made of corrosion-resistant 316L stainless steel and are used to connect with the overhead crane system of the automated production line.

[0039] The bottoms of the first V-shaped seat 1, the second V-shaped seat 3, and the third V-shaped seat 4 form a stable three-point support plane, ensuring that the flybar can sit smoothly on the power base of the electropolishing groove and automatically complete the electrical connection.

[0040] A dedicated fastening screw is provided on the third V-shaped seat 4 for crimping the auxiliary cathode lead. When simultaneous polishing of the inner and outer surfaces is required, simply fix one end of the lead to this screw and connect the other end to the auxiliary cathode on the tooling.

[0041] In this embodiment of the flying bar structure, a unique "Z"-shaped insulator is introduced, creatively integrating electrically isolated positive and negative polarity components onto the same flying bar body. The positive polarity component, consisting of a support rod and two Type I V-shaped seats, is responsible for mounting the workpiece and connecting to the positive power supply. The negative polarity component, consisting of a separate Type II V-shaped seat, is specifically designed to connect the negative power supply and the auxiliary cathode lead. This integrated design makes the flying bar itself a complete power supply interface platform. Its technical advantage lies in fundamentally eliminating the need to replace the flying bar or perform cumbersome external wiring during process changes. When the production line needs to process different types of parts, operators can quickly switch polishing modes without using tools or modifying the production line configuration, simply by connecting an auxiliary cathode lead. The stable support plane formed by the three V-shaped seats ensures the positioning accuracy and reliability of the flying bar's movement and energization between different slots on the production line, while the insulator ensures absolute safety during operation under high current conditions. This innovative structure-driven design lays the hardware foundation for the automation and flexibility of the production line.

[0042] Example 2: A method for simultaneously electropolishing the inner and outer surfaces of metal parts. Step 1: Tooling and Airbus Preparation The shielding cylinder part is mounted on a special polishing fixture, which is designed with an auxiliary cathode that can extend into the inner cavity of the shielding cylinder part.

[0043] The flybar with coexisting anode and cathode as described in this invention is transferred to the loading station via a production line crane.

[0044] The fixture is then mounted onto the flybar's support rod 6. At this point, the shielding cylinder component is electrically connected to the support rod 6 via the fixture, becoming the anode to be polished.

[0045] Step 2: Auxiliary cathode connection Select a soft copper wire with a sufficient cross-sectional area as the auxiliary cathode lead. Connect one end of the lead to the terminal block of the auxiliary cathode on the fixture, and secure the other end to the special screw on the third V-shaped seat 4 of the flybar. At this point, the auxiliary cathode and the negative polarity component of the flybar are electrically connected.

[0046] Step 3: Automatic Power Application and Synchronous Polishing The overhead crane moves the assembled flybar above the electropolishing process tank and then lowers it.

[0047] The first V-shaped bracket 1, the second V-shaped bracket 3, and the third V-shaped bracket 4 at the bottom of the flybar precisely fall into the corresponding power bases in the slots. Specifically, the first V-shaped bracket 1 and the second V-shaped bracket 3 contact the positive terminal of the power supply, while the third V-shaped bracket 4 contacts the negative terminal. This process requires no manual intervention and automatically completes all power-on preparations.

[0048] Power on, electropolishing process begins: During electropolishing, the current operates simultaneously through two independent paths.

[0049] For external surface polishing, the current flows out from the positive terminal of the power supply, passes through the first V-shaped seat 1 and the second V-shaped seat 3 on the flybar, is conducted to the support rod 6, and then reaches the shielding cylinder through the hanger, making the entire outer surface of the shielding cylinder the anode; the current then passes through the electrolyte, reaches the inherent cathode plate in the electropolishing tank, and finally returns to the negative terminal of the power supply.

[0050] For inner surface polishing, the current also flows from the positive terminal of the power supply, through the flybar and hanger to the shielding cylinder, making its inner surface the anode; the current then passes through the electrolyte to the auxiliary cathode extending into the inner cavity of the shielding cylinder, and is then conducted through the auxiliary cathode lead to the third V-shaped seat 4 on the flybar, finally returning to the negative terminal of the power supply. These two pathways work together to achieve simultaneous electropolishing of the inner and outer surfaces of the shielding cylinder.

[0051] Under the set current, voltage, and time parameters, the inner and outer surfaces of the shielding cylinder undergo electrolytic polishing reactions simultaneously, completing the full surface treatment of the entire part in one go.

[0052] Step 4: Subsequent Process After polishing, the overhead crane lifts the flybar and automatically disconnects it from the power supply inside the tank. The flybar is then transferred to subsequent washing and passivation tanks to complete the entire processing flow.

[0053] In contrast, when the production line only needs to polish the outer surface of sheet-like parts, the operation is much simpler: the parts are simply mounted on the flybar, without the need to connect any auxiliary cathode leads. After the flybar enters the polishing tank, only the positive polarity component is energized to efficiently complete the outer surface polishing.

[0054] The electropolishing method of this invention, based on the aforementioned flybar structure, develops a highly efficient and continuous workflow. The core effect of this method is the simultaneous, one-time polishing of the inner and outer surfaces of cylindrical parts, simplifying the complex process that previously required multiple steps and multiple loading cycles into a smooth, continuous process. Taking a vacuum interrupter shielding cylinder as an example, the operator only needs to complete the workpiece installation and auxiliary cathode lead connection in a single loading cycle; all subsequent power connection, polishing, water washing, passivation, and other processes can be automatically completed by the overhead crane system. The moment the flybar enters the polishing tank, its bottom V-shaped seat automatically and accurately connects to the corresponding positive and negative electrodes, immediately forming two independent, non-interfering current loops, ensuring that a uniform electrolytic reaction occurs simultaneously on the inner and outer surfaces of the part. This method not only more than doubles production efficiency, but more importantly, it eliminates the quality risks such as poor contact and reversed polarity that may be caused by manual circuit switching in traditional methods, significantly improving the consistency and reliability of product surface treatment. At the same time, this method greatly reduces the technical dependence and labor intensity of operators, enabling a production line to flexibly and economically respond to diverse production tasks.

[0055] Unless otherwise specified, all embodiments and preferred embodiments mentioned herein can be combined to form new technical solutions.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0057] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. When a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0061] 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A co-cathode flybar structure for an electropolishing production line, characterized in that, include: V-shaped seat assembly, support pole (6) and insulation (5); The V-shaped seat assembly includes a first V-shaped seat (1), a second V-shaped seat (3) and a third V-shaped seat (4). The first V-shaped seat (1) is disposed at one end of the frame rod (6), and the insulating part (5) and the second V-shaped seat (3) are respectively disposed on both sides of the other end of the frame rod (6); The third V-shaped seat (4) is disposed on the insulating member (5); the insulating member (5) provides electrical insulation isolation between the third V-shaped seat (4) and the support rod (6); The first V-shaped seat (1) and the second V-shaped seat (3) serve as positive polarity components and are in contact with the positive electrode of the polishing power supply; The third V-shaped seat (4) serves as a negative polarity component and is in contact with the negative electrode of the polishing power supply; The third V-shaped seat (4) is provided with a lead interface for connecting the auxiliary cathode.

2. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, The first V-shaped seat (1), the second V-shaped seat (3) and the third V-shaped seat (4) are all made of copper. The support pole (6) is made of copper.

3. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, The first V-shaped seat (1) and the second V-shaped seat (3) are fixedly connected to the frame rod (6) by means of slotting and screw fastening.

4. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, The insulating component (5) has a Z-shaped structure, and the third V-shaped seat (4) and the frame rod (6) are fastened together by screws.

5. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, The insulating component (5) is made of electrical insulating bakelite.

6. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, The first V-shaped seat (1), the second V-shaped seat (3) and the third V-shaped seat (4) together form a support plane and are installed in conjunction with the power supply base of the production line slot.

7. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, A lifting hook (2) is connected to the support pole (6).

8. The electropolishing production line's anode-cathode co-functional flybar structure according to claim 1, characterized in that, The lead interface is a fastening screw set on the third V-shaped seat (4) for crimping the auxiliary cathode lead.

9. A method for simultaneously electropolishing the inner and outer surfaces of metal parts, characterized in that, Based on the electropolishing production line using the anode-cathode co-functional flybar structure according to any one of claims 1-8, the process includes the following steps: The electropolishing fixture is mounted on the support pole (6); Connect the first V-shaped seat (1) and the second V-shaped seat (3) of the flybar to the positive terminal of the polishing power supply, and connect the third V-shaped seat (4) to the negative terminal of the polishing power supply. Connect the lead interface on the third V-shaped seat (4) to the auxiliary cathode lead of the electropolishing fixture; The flybar structure with the parts attached is immersed in the electropolishing tank, the power is turned on, and the inner and outer surfaces of the parts are electropolished simultaneously.

10. A method for synchronous electropolishing of the inner and outer surfaces of metal parts according to claim 9, characterized in that, During the electropolishing process, the cathode plate in the electropolishing tank is connected to the negative terminal of the power supply, and together with the auxiliary cathode, they form a cathode circuit for polishing the outer surface of the part.

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