Electrochemical polishing device in ultra-clean stainless steel valve body

Abstract

The utility model relates to the technical field of electrochemical polishing equipment, in particular to an electrochemical polishing device in an ultra-clean stainless steel valve body, which comprises a rack provided with a liquid medicine box and a working chamber, a liquid medicine circulating pipeline is arranged between the working chamber and the liquid medicine box, and a workpiece placing component and an electrochemical treatment component are arranged in the working chamber. The workpiece placing assembly comprises a tool table and a working base plate, the tool table is arranged on the working base plate, and the tool table and the working base plate are connected with the liquid medicine box; the electrochemical treatment assembly comprises first electrodes moving telescopically in the horizontal direction and a second electrode lifting in the vertical direction, the two opposite sides of the tool table in the horizontal direction are each provided with one first electrode, and the second electrode is located over the tool table; the first and second electrodes are respectively connected with a cathode and an anode of a power supply. According to the electrochemical polishing device, the inner surface of the stainless steel valve body can be subjected to better electrochemical polishing treatment, and the machining quality has better consistency; and the operation precision and the machining speed are improved, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical polishing equipment, in particular to an electrochemical polishing device for an ultra-clean stainless steel valve body. Background Art

[0002] Electrochemical polishing is a technical method that uses electrochemical processes to improve the surface finish of metals. In the polishing process, the workpiece to be processed is used as the anode, and the insoluble metal or conductive material is used as the cathode. Both are immersed in the liquid (i.e., electrolyte solution) in the electrolytic cell. When direct current passes through the electrolytic cell, an oxidation reaction occurs on the surface of the metal anode, causing the raised parts of the surface to dissolve first, thereby removing microscopic defects such as burrs on the metal surface, thereby making the surface of the workpiece smoother.

[0003] In actual application scenarios, electrochemical polishing of the stainless steel valve body is involved. The stainless steel valve body has a relatively irregular inner cavity structure, including multiple inner cavities with different apertures, corresponding to each hole, and the aperture is small. It is very difficult to perform electrochemical polishing on the inner wall of the inner cavity, and the processing quality cannot be well consistent. Fig.11 An ultra-clean stainless steel valve body structure is shown, which has two valve ports arranged opposite to each other on the left and right and a valve port at the bottom, including valve port 1', valve port 2' and valve port 3'. Among the two valve ports arranged opposite to each other, the opening aperture of valve port 2' is relatively fine, while the opening aperture of valve port 1' is relatively coarse, so as to realize the function of large flow in and small flow out, thereby realizing accurate control of flow. When the bottom valve port extends into the cavity, its channel also changes from coarse to fine. For this type of valve body structure with different channel thickness in the inner cavity of the valve body, the quality after being processed by traditional processes and related equipment is relatively poor, and it is difficult to meet the actual use requirements and cannot meet the market needs well. Utility Model Content

[0004] The purpose of the utility model is to provide an electrochemical polishing device for an ultra-clean stainless steel valve body to solve the above technical problems.

[0005] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0006] The electrochemical polishing device in the ultra-clean stainless steel valve body comprises a frame, the frame has a working chamber, a medicine box is arranged on the frame, a medicine circulation pipeline is arranged between the working chamber and the medicine box, so that the medicine used for polishing treatment circulates between the working chamber and the medicine box, and the workpiece to be processed is placed in the working chamber for electrochemical polishing treatment, wherein:

[0007] The working chamber is provided with a workpiece placement component and an electrochemical processing component.

[0008] The workpiece placement assembly includes a tooling table and a working substrate, the tooling table is arranged on the working substrate, the workpiece is placed on the tooling table and then subjected to electrochemical polishing of the valve cavity, and the tooling table and the working substrate are respectively connected to the liquid medicine box;

[0009] The electrochemical treatment assembly includes a first electrode that moves horizontally and telescopically and a second electrode that moves vertically.

[0010] The first electrode is disposed on two opposite sides of the tooling table in the horizontal direction, and the second electrode is located directly above the tooling table;

[0011] The first electrode is connected to the negative pole of the power supply, and the second electrode is connected to the positive pole of the power supply.

[0012] The workpiece described in the utility model refers to a stainless steel valve body having valve ports on both sides and the bottom. Its basic structure is as follows: Fig.11 It is especially suitable for electrochemical polishing of the inner cavity of ultra-clean stainless steel valve bodies.

[0013] Preferably, the workpiece placement assembly includes at least two of the tooling tables.

[0014] Corresponding to any of the tooling tables, a group of two of the first electrodes and one of the second electrodes are provided, so that the two first electrodes are located on opposite sides of the corresponding tooling table.

[0015] The utility model arranges a plurality of tooling tables in the same working chamber, and pairs a plurality of groups of first electrodes and second electrodes (here, two first electrodes are paired with one second electrode to form a group), which can meet the needs of mass production, realize the simultaneous processing of multiple workpieces by a single machine at a time, effectively improve the production capacity and ensure the processing quality.

[0016] Preferably, the workpiece placement assembly includes a reflow groove, and the reflow groove is connected to the side of the working substrate.

[0017] The reflux groove has an inclined groove bottom, and a drainage hole is provided at a low position of the groove bottom. The drainage hole is connected to the medicine box (the top) through a reflux pipe to achieve medicine reflux.

[0018] Preferably, the workpiece placement assembly includes a water guide plate and a water collection trough, wherein the water guide plate is located between the reflux trough and the water collection trough, and the reflux trough is located between the working base plate and the water guide plate.

[0019] One of the two opposite sides of the water guide plate is located in the reflux groove, and the other side is located in the water collecting groove.

[0020] Preferably, the first electrode and the second electrode are each connected to a telescopic propulsion mechanism, and telescopic displacement is achieved by the telescopic propulsion mechanism, so that each electrode can be retracted to an initial position before the workpiece is placed, and can be extended when the workpiece is placed in place for processing, so that the end of the first electrode is extended into the valve port, and the end of the second electrode contacts the outer wall of the workpiece (top).

[0021] Preferably, the telescopic propulsion mechanism comprises a support plate, a cylinder, a push-pull rod, a rod mounting plate and an electrode mounting plate, wherein:

[0022] The support plate is fixed on the frame.

[0023] The support plate is provided with a rod through hole. After the push-pull rod passes through the rod through hole, one end of the push-pull rod is connected to the rod mounting plate and the other end is connected to the electrode mounting plate.

[0024] The extended end of the telescopic rod of the cylinder is connected to the rod mounting plate.

[0025] Preferably, a linear bearing is sleeved on the push-pull rod, and the linear bearing is fixed to the support plate via a bearing seat or a flange structure.

[0026] Preferably, the frame is provided with an upper and lower two-layer structure, the working chamber is located at the upper layer of the frame, and the medicine box is located at the lower layer of the frame.

[0027] Preferably, a heating component is provided in the medicine box.

[0028] Preferably, a sealing gasket is provided on the periphery of the first electrode so as to form a sealing structure at the opening of the valve port when the first electrode is extended into the valve port of the workpiece.

[0029] Beneficial effects: Due to the adoption of the above technical solution, the utility model can perform better electrochemical polishing treatment on the inner surface of the stainless steel valve body, and has the following advantages:

[0030] 1) The processing quality has good consistency;

[0031] 2) Reduce manual intervention, improve operation accuracy and reduce the workload of operators;

[0032] 3) Realize batch operation, increase processing speed and improve production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A structural schematic diagram of the utility model;

[0034] Figure 2 for Figure 1 Schematic diagram of the structure when viewed from the left;

[0035] Figure 3This is a structural schematic diagram of the medicine circulation pipeline of the utility model;

[0036] Figure 4 for Figure 3 Schematic diagram of the structure when viewed from another perspective;

[0037] Figure 5 A schematic diagram of a structure in the working chamber of the utility model;

[0038] Figure 6 A structural schematic diagram of the flow diversion and overflow mechanism of the utility model;

[0039] Figure 7 A structural schematic diagram of the telescopic propulsion mechanism of the utility model;

[0040] Figure 8 for Figure 7 Schematic diagram of the structure when viewed from another perspective;

[0041] Fig. 9 It is a partial schematic diagram of the working chamber of the utility model located at the tooling table;

[0042] Fig.10 for Fig. 9 Schematic diagram of the structure after the workpiece is hidden;

[0043] Fig.11 The utility model is used to treat an ultra-clean stainless steel valve body. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific diagrams. It should be noted that the terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described here can be implemented in an order other than that illustrated or described here. In addition, the term "including" or "having" and any variation thereof are intended to cover non-exclusive inclusions, for example, a product or device containing a series of components or units is not necessarily limited to those components or units clearly listed, but may include other components or components that are not clearly listed or inherent to these products or devices.

[0045] Reference Figure 1 , Figure 2The electrochemical polishing device in the ultra-clean stainless steel valve body includes a frame 100, which has a working chamber, and the workpiece to be processed is placed in the working chamber for electrochemical polishing. The frame structure can be constructed by horizontal and vertical support bars, and the working chamber is closed by a sealing plate. A medicine box 801 is provided in the frame structure of the frame 100, and a medicine circulation pipeline is provided between the working chamber and the medicine box 801. After being connected through the medicine circulation pipeline, the medicine used for polishing treatment circulates between the working chamber and the medicine box. For this purpose, a delivery pump 802 is also provided in the frame structure of the frame 100.

[0046] A workpiece placement component and an electrochemical treatment component are arranged in the working chamber. The workpiece is placed and stabilized by the workpiece placement component, and the inner cavity of the workpiece is electrochemically polished by the electrochemical treatment component.

[0047] The workpiece placement assembly includes a tooling table 201 and a working substrate 202 . The tooling table 201 is arranged on the working substrate 202 . After the workpiece is placed on the tooling table 201 , the electrochemical polishing treatment of the valve cavity is performed.

[0048] The tooling table 201 and the working base plate 202 are respectively connected to the liquid medicine box 801, wherein Figure 4 , Figure 6 As shown, the tooling table 201 is connected to the pipeline 702 through its interface 20101 and then connected to the delivery pump 802, and the working base plate 202 is connected to the pipeline 701 through the reflux groove 203 and then connected to the medicine tank 801;

[0049] The electrochemical treatment assembly includes a first electrode 3011 that moves horizontally and telescopically and a second electrode 3012 that moves vertically. Fig. 9 , Fig.10 As shown, a first electrode 3011 is disposed on each of two opposite sides of the tooling table 201 in the horizontal direction, and the second electrode 3012 is located directly above the tooling table 201;

[0050] The first electrode 3011 is connected to the negative electrode of the power supply, and the second electrode 3012 is connected to the positive electrode of the power supply. The power supply is mounted in the frame of the rack 100.

[0051] It should be noted that in order to facilitate the display of the internal structure of the rack, Figure 1 The sealing plate at the front side of the frame is hidden in the structure. In actual implementation, sealing plates are set on the front sides of the upper and lower structures of the frame, so that the working chamber is in a working state isolated from the outside world during operation.

[0052] In some preferred embodiments, Figure 6 , Fig.10 As shown, a first electrode is also provided on the workbench 201 , and is located in the hollow inner cavity of the pad 20102 .

[0053] When the utility model is working, Figure 1 , Figure 6 , Fig. 9 , Fig.10 , Fig.11 As shown, after the workpiece 9 is placed on the workbench 201, the bottom valve port 3' is connected to the interface 20101 on the workbench 201 (the interface is connected to the medicine box), and the second electrode 3012 connected to the positive pole of the power supply descends and contacts the top outer wall 4' of the workpiece 9, so that the workpiece body is set as the anode, and the first electrode 3011 extends into the two horizontally opposite valve ports of the workpiece 9. The medicine box 801 supplies polishing medicine to the valve cavity of the workpiece 9. The first electrode 3011 conducts the medicine with the negative pole of the power supply, so that the medicine is set as the cathode, and forms a sealing structure at the edge of the valve port after extending, so as to achieve the effect of the medicine circulating through the medicine box and the valve cavity of the workpiece.

[0054] The workpiece processed by the utility model refers to a stainless steel valve body having valve ports on both the left and right opposite sides and the bottom. Its basic structure is as follows Fig.11 shown.

[0055] In the utility model, the power supply can be arranged in the frame structure of the rack and fixed thereon. A control box can also be fixedly arranged on the rack, in which the control circuit of the delivery pump for controlling the circulation of the liquid medicine, the driving circuit of the power supply, the temperature control circuit of the liquid medicine tank and other related circuit structures are arranged.

[0056] In order to realize the reflux of the liquid medicine, the utility model can be further configured as follows: In some embodiments, as Figure 6 As shown, the workpiece placement assembly includes a reflow groove 203, the reflow groove 203 is connected to the side of the working substrate 202, and the reflow groove 203 has an inclined groove bottom ( Figure 4 The structure shows an inclined structure of the bottom of the tank, and a drainage hole is provided at a low position of the bottom of the tank. The drainage hole is connected to the medicine box (the top) through a reflux pipe 701 to achieve medicine reflux. Correspondingly, as Figure 3 , Figure 4 , Figure 6 As shown, the delivery pump 802 is connected to the interface 20101 of the tooling table through the pipeline 702, and is connected to the medicine tank 801 through the pipeline 703. Thus, a medicine circulation pipeline system is constructed.

[0057] In order to better realize the reflux of the liquid medicine, the utility model can be further configured as follows: In some embodiments, as Figure 6 As shown, the workpiece placement assembly includes a water guide plate 204 and a water collecting trough 205. The water guide plate 204 is located between the reflux trough 203 and the water collecting trough 205. The reflux trough 203 is located between the working base plate 202 and the water guide plate 204.

[0058] like Figure 6As shown, one of the two opposite sides of the water guide plate 204 is located in the reflow groove 203, and the other side is located in the water collection groove 205. In order to facilitate the installation of the water guide plate 204 and the overflow guiding function, the two opposite sides of the water guide plate 204 can be arranged to be bent structures, one side of the bent structure fits the inner wall of the opening side of the reflow groove 203, and the other side of the bent structure fits the inner wall of the opening side of the water collection groove 205.

[0059] After setting up according to the above example, when the reflux trough is playing its reflux role, when overflow occurs (for example, the bottom channel of the reflux trough is blocked, the delivery pump stops abnormally, the flow rate is too high causing the reflux volume to exceed the tolerance of the reflux trough, etc.), the excess flow can be introduced into the sump through the water guide plate and the sump and then discharged externally.

[0060] It should be noted that the overflowed liquid medicine may be contaminated, so the liquid medicine collected in the sump does not flow back to the liquid medicine tank.

[0061] In some preferred embodiments, Figure 1 , Figure 2 As shown, the water collection tank 205 is disposed outside the frame 100 and attached to the front structure of the frame 100 .

[0062] It should be noted that when the water collecting trough is set, its length is greater than the length of the water guide plate (in the length direction of the water collecting trough), so that the overflow outlet range of the water guide plate can be covered by the length of the water collecting trough.

[0063] In some preferred embodiments, the bottom of the sump can also be configured as an inclined structure, and a drainage hole is provided at the low end to be connected to an external collection device.

[0064] In some preferred embodiments, a water guide groove is provided on the surface of the water guide plate (this structural arrangement is not shown in the attached drawings of the present utility model), and the water guide groove is a concave structure on the surface of the water guide plate, extending from one side of the reflux groove to one side of the water collection groove, for further guiding the overflow medicine to the water collection groove.

[0065] According to the above example, the utility model constructs a diversion and overflow mechanism by setting a reflux groove, a water guide groove, and a water collection groove in combination with a working base plate, which can meet the reflux needs while also taking into account the overflow needs in abnormal situations.

[0066] In order to realize the telescopic propulsion of each electrode, the utility model can be arranged according to the following structure: in some embodiments, the first electrode and the second electrode are each connected to a telescopic propulsion mechanism, and the telescopic displacement is realized by the telescopic propulsion mechanism, so that each electrode can be retracted to the initial position before the workpiece is placed, and when the workpiece is placed in place for processing, it can be extended so that the end of the first electrode is extended into the valve port and the end of the second electrode contacts the outer wall of the workpiece (top).

[0067] The utility model is provided with a telescopic propulsion mechanism according to the following structure: In some embodiments, as Figure 7 , Figure 8 As shown, the telescopic propulsion mechanism includes a support plate 3021, a cylinder 3022, a push-pull rod 3023, a rod mounting plate 3024 and an electrode mounting plate 3025, wherein:

[0068] The support plate 3021 is fixed on the frame 100.

[0069] The support plate 3021 is provided with a rod through hole. After the push-pull rod 3023 passes through the rod through hole, one end of the push-pull rod 3023 is connected to the rod mounting plate 3024 and the other end is connected to the electrode mounting plate 3025.

[0070] The extended end of the telescopic rod of the cylinder 3022 is connected to the rod mounting plate 3024.

[0071] Specifically, Figure 5 As shown, support plates 3021 are fixedly arranged on the left and right opposite sides and the top of the working substrate 202. After a sealing plate is arranged on the frame structure of the bracket 100, the support plates 3021 and the sealing plates of the left and right first electrodes 3011 are matched (the support plate corresponding to the second electrode 3012 can be regarded as a part of the sealing plate on the top of the frame, and the support plate corresponding to the first electrode 3011 can be arranged in contact with the two opposite sides of the working substrate 202 when it is set), the space where the workbench 201 is located is isolated into an independent chamber, so that the liquid medicine can be smoothly guided to the reflux groove 203 after overflowing from the bottom of the workpiece 9.

[0072] In the utility model, the working chamber is separated into a processing chamber in the middle and power chambers on both sides after being isolated by a support plate. The cylinder, rod mounting plate and other structures corresponding to the first electrode can be arranged in the power chamber, and the electrode mounting plate corresponding to the first electrode is located in the processing chamber. The push-pull rod corresponding to the first electrode is telescoped back and forth between the power chamber and the processing chamber (in the horizontal direction). The push-pull rod, cylinder, rod mounting plate and other related structures corresponding to the second electrode can be placed externally on the top of the frame.

[0073] For the convenience of installation, the utility model can be provided with the working substrate in the following structure: In some preferred embodiments, the support plate corresponding to the first electrode is fixed on the working substrate. Figure 5In the structure shown, the length of the working substrate 202 is longer than the support plate 3021-2 corresponding to the second electrode, so that the support plates 3021-1 corresponding to the first electrode can be respectively arranged on both sides of the working substrate 202 and fixed thereon. Under the condition of ensuring the flatness of the working substrate surface and the flatness of the base of the support plate, a better sealing effect can be achieved after the support plate is assembled to the working substrate, so as to prevent the liquid overflowing onto the working substrate from flowing into the power chamber. To facilitate the fixing of the support plate, the support plate includes a vertical portion with a rod through hole and a horizontal portion, which are connected by a reinforcing portion with a triangular structure, and the support plate is fixed to the working substrate through its horizontal portion structure.

[0074] In order to form a good force balance during pushing and pulling, the utility model sets the push-pull rods in groups of two and symmetrically arranged. In some preferred embodiments, such as Figure 7 , Figure 8 As shown, four push-pull rods 3023 are provided, and the rod through holes on the support plate 3021 are respectively located at the four corners of the support plate 3021 .

[0075] In order to facilitate the smooth pushing and pulling process of the push-pull rod, the utility model can be arranged according to the following structure: In some preferred embodiments, such as Figure 7 As shown, a linear bearing 3026 is sleeved on the push-pull rod 3023 , and the linear bearing 3026 is fixed on the support plate 3021 through a bearing seat or a flange structure.

[0076] After setting up according to the above example, when the telescopic rod of the cylinder moves, it drives the rod mounting plate to move, and then drives the push-pull rod to move. After the push-pull rod moves, it drives the electrode mounting plate to move, so that the electrode moves to one side of the tooling table, or moves away in the opposite direction. When moving to the tooling table, when a workpiece is placed on the tooling table, the first electrode extends into the valve port of the workpiece, and the second electrode contacts the outer wall of the workpiece. Under the continuous output of the cylinder, the workpiece can be firmly fixed on the tooling table in cooperation with the work shift and the tooling table.

[0077] In order to better realize the reflux of the medicine, the first electrode of the utility model forms a sealing structure after being extended into the valve port of the workpiece, so that the medicine pumped into the valve cavity of the workpiece can overflow from the bottom valve port, converge to the reflux groove through the working base plate, and then return to the medicine tank after being collected by the reflux groove. After the frame structure of the rack is closed by the sealing plate, the chamber where the workpiece is located can be a relatively closed independent chamber in cooperation with the support plate. When the medicine refluxes, it can avoid overflowing to other chambers and contaminating related working parts.

[0078] The utility model is arranged according to the following structure to achieve a sealing effect after the first electrode is extended into the valve port of the workpiece: In some embodiments, a sealing gasket is arranged on the periphery of the first electrode (refer to Figure 6 The spacer 20102 is used to form a sealing structure at the valve port opening when it extends into the valve port of the workpiece.

[0079] Through the above example arrangement, the liquid medicine supplied to the valve cavity finally overflows from the bottom valve port and flows back to the liquid medicine tank through the liquid medicine recovery mechanism on the working substrate (the working substrate, the water guide groove, and the reflux pipeline constitute the reflux channel in the liquid medicine circulation system). The above example structural arrangement can ensure that the liquid medicine can fill all parts of the valve cavity of the workpiece, ensuring the consistency of the processing quality.

[0080] It should be noted that the bottom valve port of some stainless steel valve bodies has a notch design that is easy to snap into. After the workpiece is placed on the workbench, the notch at the bottom valve port becomes an overflow opening, allowing the liquid medicine flowing through the valve cavity to overflow and flow back to the medicine tank.

[0081] In order to maintain the temperature of the liquid medicine, the utility model can be arranged as follows: In some embodiments, such as Figure 2 As shown, a heating component 804 is provided in the medicine box 801 .

[0082] In some preferred embodiments, Figure 3 As shown, the heating component 804 includes a Teflon heating tube 8041 , which has good corrosion resistance and is built into the medicine tank 801 .

[0083] like Figure 4 As shown, an opening is also provided at the bottom of the liquid medicine tank 801 and connected to a valve via a pipe 704 so that it can be used as a circulation pipe interface for cleaning or an interface for emptying when the liquid medicine tank is cleaned after the operation is completed.

[0084] In order to achieve better space allocation and make the structure compact, the utility model can be arranged as follows: In some embodiments, such as Figure 1 , Figure 2 As shown, the frame 100 is provided with an upper and lower two-layer structure, the working chamber is located at the upper layer of the frame, and the medicine box 801 is located at the lower layer of the frame.

[0085] It should be noted that the electrical structures such as the power supply, the delivery pump 802 and the electric control box can be arranged in the lower layer of the rack, located on one side of the liquid medicine tank 801, and the upper and lower structures of the rack 100 are well sealed to prevent the liquid medicine from overflowing to the lower layer and contaminating the electrical parts. A touch screen can be hung on the outside of the rack 100 through a rotating cantilever, which is connected to the control circuit in the electric control box for operators to operate and observe the processing status.

[0086] In order to realize batch operation, the utility model can be arranged in the following structure: In some embodiments, the workpiece placement assembly includes at least two tooling tables,

[0087] Corresponding to any tooling station, a group of two first electrodes and one second electrode are provided, so that the two first electrodes are located on opposite sides of the corresponding tooling station.

[0088] The utility model arranges a plurality of tooling tables in the same working chamber, and pairs a plurality of groups of first electrodes and second electrodes (here, two first electrodes are paired with one second electrode to form a group), which can meet the needs of mass production, realize the simultaneous processing of multiple workpieces by a single machine at a time, effectively improve the production capacity and ensure the processing quality.

[0089] It should be noted that any tooling station is connected to the delivery pump via an independent liquid supply pipeline.

[0090] In other embodiments, at least two tooling tables can be arranged side by side along the same straight line and then integrally formed. Figure 6 In the workpiece placement assembly of the double-station structure shown in the present invention, the two tooling tables are an integrated structure, and the integrated structure has two interfaces 20101, corresponding to which are independent cushion blocks 20102.

[0091] In summary, the utility model can realize electrochemical polishing treatment on the cavity of stainless steel valves in batches, with good operation quality and high efficiency.

[0092] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electrochemical polishing device for an ultra-clean stainless steel valve body, comprising a frame, the frame having a working chamber, a medicine tank being arranged on the frame, a medicine circulation pipeline being arranged between the working chamber and the medicine tank, characterized in that: The working chamber is provided with a workpiece placement component and an electrochemical processing component. The workpiece placement assembly comprises a tooling table and a working base plate, the tooling table is arranged on the working base plate, and the tooling table and the working base plate are respectively connected to the liquid medicine box; The electrochemical treatment assembly includes a first electrode that moves horizontally and telescopically and a second electrode that moves vertically. The first electrode is disposed on two opposite sides of the tooling table in the horizontal direction, and the second electrode is located directly above the tooling table; The first electrode is connected to the negative pole of the power supply, and the second electrode is connected to the positive pole of the power supply.

2. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 1, characterized in that: The workpiece placement assembly includes at least two tooling tables, Corresponding to any of the tooling tables, a group of two of the first electrodes and one of the second electrodes are provided, so that the two first electrodes are located on opposite sides of the corresponding tooling table.

3. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 1 or 2, characterized in that: The workpiece placement assembly includes a reflow groove, and the reflow groove is connected to the side of the working substrate. The reflux trough has an inclined trough bottom, and a drainage hole is arranged at a low position of the trough bottom. The drainage hole is connected to the medicine water tank through a reflux pipe.

4. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 3, characterized in that: The workpiece placement assembly includes a water guide plate and a water collection trough, wherein the water guide plate is located between the reflux trough and the water collection trough, and the reflux trough is located between the working base plate and the water guide plate. One of the two opposite sides of the water guide plate is located in the reflux groove, and the other side is located in the water collecting groove.

5. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 1 or 2, characterized in that: The first electrode and the second electrode are each connected to a telescopic propulsion mechanism.

6. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 5, characterized in that: The telescopic propulsion mechanism includes a support plate, a cylinder, a push-pull rod, a rod mounting plate and an electrode mounting plate, wherein: The support plate is fixed on the frame. The support plate is provided with a rod through hole. After the push-pull rod passes through the rod through hole, one end of the push-pull rod is connected to the rod mounting plate and the other end is connected to the electrode mounting plate. The extended end of the telescopic rod of the cylinder is connected to the rod mounting plate.

7. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 6, characterized in that: The push-pull rod is sleeved with a linear bearing, and the linear bearing is fixed to the support plate through a bearing seat or a flange structure.

8. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 1 or 2, characterized in that: The frame is provided with an upper and lower two-layer structure, the working chamber is located at the upper layer of the frame, and the medicine box is located at the lower layer of the frame.

9. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 1 or 2, characterized in that: A heating component is arranged in the medicine liquid box.

10. The electrochemical polishing device for ultra-clean stainless steel valve body according to claim 1 or 2, characterized in that: A sealing gasket is disposed around the periphery of the first electrode.

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