Electrolytic polishing equipment for ultra-long stainless steel pipe

Abstract

The utility model discloses electrolytic polishing equipment for an ultra-long stainless steel tube. The electrolytic polishing equipment comprises a rack, the anode is fixedly connected to the top surface of the rack, and the top surface of the anode is provided with a positioning groove for placing a stainless steel tube; the clamping mechanism is arranged on the rack; the cathode is inserted into the stainless steel tube; the elastic positioning piece is arranged on the periphery of the cathode in a sleeving mode and abuts against the inner wall of the stainless steel pipe; and the electrolyte circulating mechanism is arranged on the rack and used for controlling the electrolyte to flow through the interior of the stainless steel pipe. The stainless steel tube is placed on the anode, and the cathode and the electrolyte are positioned in the stainless steel tube, so that only the interior of the stainless steel tube can be subjected to electrolytic polishing, and the production cost is reduced while the production efficiency is improved; the clamping mechanism can fix the stainless steel pipe and improve the stability of the stainless steel pipe; and by arranging the elastic positioning piece, the cathode can be positioned in the stainless steel pipe, so that the current density during electrolytic polishing is effectively controlled, and the quality of the machined stainless steel pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stainless steel pipe processing, in particular to an electrolytic polishing device for an ultra-long stainless steel pipe. Background Art

[0002] Electrolytic polishing, also known as electrochemical polishing, uses the workpiece to be polished as the anode and the insoluble metal as the cathode. Both electrodes are immersed in the electrolytic cell at the same time, and direct current is passed through to produce selective anodic dissolution, thereby increasing the brightness of the workpiece surface.

[0003] In the fields of semiconductors, medical treatment, food processing, etc., the cleanliness requirements for stainless steel pipes are extremely high. Usually, fluid substances mainly flow inside stainless steel pipes, so the cleanliness of the inner wall of stainless steel pipes is often more critical. The Chinese utility model patent with publication number CN220318029U discloses an electrochemical polishing electrolytic cell. When used, the workpiece can only be immersed in the electrolytic cell for overall electrolytic polishing. Therefore, it is not suitable for electrolytic polishing operations only on the inner wall of stainless steel pipes, and electrolytic polishing of the entire stainless steel pipe will increase the production cost of the equipment.

[0004] Therefore, it is necessary to improve the electrolytic polishing equipment in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide an electrolytic polishing device for an ultra-long stainless steel pipe, thereby reducing the cost of electrolytic polishing of the stainless steel pipe.

[0006] To achieve the above objectives, the specific technical solutions of the ultra-long stainless steel tube electrolytic polishing equipment of the present invention are as follows:

[0007] An electrolytic polishing device for an extra-long stainless steel tube, comprising:

[0008] frame;

[0009] an anode fixedly connected to the top surface of the frame, wherein the top surface of the anode has a positioning groove for placing a stainless steel tube, and the anode is electrically connected to the stainless steel tube;

[0010] A clamping mechanism, provided on the frame, for fixing the stainless steel tube in the positioning groove;

[0011] a cathode, inserted into the interior of the stainless steel tube;

[0012] an elastic positioning member, sleeved on the outer circumference of the cathode and abutting against the inner wall of the stainless steel tube, for maintaining the spacing distance between the cathode and the stainless steel tube;

[0013] The electrolyte circulation mechanism is arranged on the frame and is used to control the electrolyte to flow through the interior of the stainless steel tube.

[0014] Preferably, a plurality of anodes are provided, each of the anodes extends along the width direction of the frame, an insulating pad is provided between the anode and the frame, and each of the anodes is distributed at equal intervals along the length direction of the frame.

[0015] Preferably, the clamping mechanism includes a fixed frame fixedly connected to the frame, the fixed frame is provided with a lifting column for vertical sliding, the top and bottom ends of the lifting column are respectively fixedly connected with an insulating handle and a tightening block, the lifting column is provided with a spring, and the two ends of the spring are respectively connected to the fixed frame and the tightening block.

[0016] Preferably, the electrolyte circulation mechanism includes a liquid collecting tank and a liquid storage tank respectively arranged at both ends of the frame, the top of the liquid collecting tank is open, a power pump is arranged between the liquid collecting tank and the liquid storage tank, the liquid storage tank is connected to an insulating joint through a hose, and the hose is installed with a valve.

[0017] Preferably, both ends of the frame are provided with liquid collecting boxes with open tops, the two liquid collecting boxes are connected through a pipeline, and one of the liquid collecting boxes is connected to the liquid storage tank through a power pump.

[0018] Preferably, the cathode comprises a flexible conductive core and an insulating sheath wrapped around the conductive core, and the insulating sheath is provided with a ring cut.

[0019] Preferably, a plurality of the annular cuts are provided, and the annular cuts are distributed at equal intervals along the extension direction of the conductive core.

[0020] Preferably, there are multiple elastic positioning members distributed at equal intervals along the extension direction of the conductive core, and the elastic positioning members are staggered with the annular incisions. The elastic positioning members include two fixed sleeves sleeved on the outer periphery of the insulating outer skin, and an elastic support bar is fixedly connected between the two fixed sleeves. The support bar is an arc-shaped structure, and each support bar is distributed at equal intervals around the axis of the fixed sleeve.

[0021] The ultra-long stainless steel tube electrolytic polishing equipment of the present invention has the following advantages: the stainless steel tube is placed on the anode, and the cathode and the electrolyte are located inside the stainless steel tube, so that electrolytic polishing of only the inside of the stainless steel tube can be achieved, thereby improving production efficiency while reducing production costs; the setting of the clamping mechanism can fix the stainless steel tube and improve the stability of the stainless steel tube; the setting of the elastic positioning part can realize the positioning of the cathode inside the stainless steel tube, thereby effectively controlling the current density during electrolytic polishing and improving the quality of the processed stainless steel tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the electrolytic polishing equipment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the installation structure of the clamping mechanism of the present utility model;

[0024] Figure 3 for Figure 2 A magnified view of part A;

[0025] Figure 4 This is a schematic diagram of the connection structure between the cathode and the elastic positioning member of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the elastic positioning member of the present utility model;

[0027] Explanation of the marks in the figure: 1. Frame; 3. Power box; 4. Cathode; 5. Anode; 6. Clamping mechanism; 7. Elastic positioning member; 201. Liquid collecting tank; 202. Pipeline; 203. Power pump; 204. Liquid storage tank; 205. Hose; 206. Insulating joint; 207. Valve; 401. Conductive cell; 402. Insulating outer skin; 403. Annular cut; 501. Insulating pad; 502. Positioning groove; 601. Fixing frame; 602. Lifting column; 603. Insulating handle; 604. Tightening block; 605. Spring; 701. Support bar; 702. Fixing sleeve. DETAILED DESCRIPTION

[0028] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] The terms "top surface", "bottom surface" and "undersurface" are based on the normal use state of the stainless steel tube electrolytic polishing equipment and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0030] like Figure 1-5 As shown, an electrolytic polishing device for an extra-long stainless steel tube includes: a frame 1; an anode 5, fixedly connected to the top surface of the frame 1, the top surface of the anode 5 having a positioning groove 502 for placing the stainless steel tube, and the anode 5 is connected to the stainless steel tube; a clamping mechanism 6, arranged on the frame 1, for fixing the stainless steel tube in the positioning groove 502; a cathode 4, inserted into the interior of the stainless steel tube; an elastic positioning member 7, sleeved on the outer periphery of the cathode 4, and abutting against the inner wall of the stainless steel tube, for maintaining the spacing distance between the cathode 4 and the stainless steel tube; an electrolyte circulation mechanism, arranged on the frame 1, for controlling the flow of electrolyte through the interior of the stainless steel tube.

[0031] The above-mentioned electrolytic polishing equipment is suitable for electrolytic polishing the inner wall of the stainless steel pipe to improve the cleanliness and flatness of the inner wall of the stainless steel pipe, and at the same time improve the corrosion resistance and wear resistance of the inner wall of the stainless steel pipe; when in use, the stainless steel pipe is placed inside the positioning groove 502 on the anode 5, and the stainless steel pipe is clamped by the clamping mechanism 6 to improve the firmness of the stainless steel pipe; the cathode 4 bracket is inserted into the interior of the stainless steel pipe, and the cathode 4 and the anode 5 are both connected to the power box 3 for power supply; the electrolyte circulation mechanism stores electrolyte, and can make the electrolyte flow inside the stainless steel pipe and make the electrolyte completely fill the interior of the stainless steel pipe; during electrolytic polishing, the cathode 4 and the anode 5 are energized, and the electrolyte flows inside the stainless steel pipe, so that only the inner wall of the stainless steel pipe can be electrolytically polished, which can improve production efficiency while reducing production costs.

[0032] The setting of the elastic positioning member 7 can position the cathode 4 inserted into the stainless steel tube to prevent the cathode 4 from contacting the stainless steel tube and causing a short circuit. By positioning the cathode, the current density can be effectively controlled to make the current distribution more uniform, thereby improving the effect of electrolytic polishing. The electrolyte flows inside the stainless steel tube, which can improve the uniformity of the electrolyte distribution and make the electrolyte temperature more uniform, which can effectively improve the effect of electrolytic polishing.

[0033] Further improvements are, Figure 1 and 2 As shown, a plurality of anodes 5 are provided, and the anodes 5 extend along the width direction of the frame 1. An insulating pad 501 is provided between the anode 5 and the frame 1, and the anodes 5 are evenly spaced along the length direction of the frame 1. The provision of the insulating pad 501 can prevent the frame 1 from being conductive, so that the operator will not be electrocuted when touching the frame 1, thereby improving the safety of the equipment; the provision of multiple anodes 5, and the uniform distribution of each anode 5 along the axial direction of the stainless steel pipe can improve the uniformity of current distribution during the electrolytic polishing of the stainless steel pipe, improve the efficiency and effect of the electrolytic polishing, and also make the stainless steel pipe bear the force evenly, thereby improving the support effect for the stainless steel pipe; multiple positioning grooves 502 can be provided on a single anode 5, so that multiple stainless steel pipes can be placed at a time, realizing batch electrolytic polishing of stainless steel pipes and improving the processing efficiency of the equipment.

[0034] Further improvements are, Figure 3As shown, the clamping mechanism 6 includes a fixed frame 601 fixedly connected to the frame 1. The fixed frame 601 is provided with a lifting column 602 that slides vertically. The top and bottom ends of the lifting column 602 are respectively fixedly connected to an insulating handle 603 and a clamping block 604. The lifting column 602 is provided with a spring 605, and the two ends of the spring 605 are respectively connected to the fixed frame 601 and the clamping block 604. The number of clamping mechanisms 6 is consistent with the number of anodes 5 and corresponds one to one. Under the action of the elastic force of the spring 605, the clamping block 604 can apply downward pressure to the stainless steel tube, thereby achieving a closer contact between the stainless steel tube and the anode 5, preventing the stainless steel tube from shifting or falling during processing, and improving the processing effect of the stainless steel tube.

[0035] Further improvements are, Figure 1 and 2 As shown, the electrolyte circulation mechanism includes a liquid collecting tank 201 and a liquid storage tank 204 respectively arranged at both ends of the frame 1. The top of the liquid collecting tank 201 is open, and a power pump 203 is arranged between the liquid collecting tank 201 and the liquid storage tank 204. The liquid storage tank 204 is connected to an insulating joint 206 through a hose 205, and the hose 205 is installed with a valve 207; both ends of the frame 1 are provided with a liquid collecting tank 201 with an open top, and the two liquid collecting tanks 201 are connected by a pipe 202, and one of the liquid collecting tanks 201 is connected to the liquid storage tank 204 through the power pump 203. Both the liquid storage tank 204 and the liquid collecting tank 201 can store electrolyte. When the power pump 203 is working, the electrolyte is sent into the liquid storage tank 204. The electrolyte passes through the hose 205 and then the insulating joint into the stainless steel pipe. Then it flows into the liquid collecting tank 201 from the other end of the stainless steel pipe, and is then sent to the liquid storage tank 204 by the power pump 203, thus completing a complete cycle. The setting of the hose 205 facilitates the position adjustment of the insulating joint 206, thereby improving the convenience of connecting the insulating joint 206 with the stainless steel pipe. The insulating joint 206 is sealed and connected to one end of the stainless steel pipe to play an insulating role, thereby preventing the liquid storage tank 204 and the liquid collecting tank 201 from being connected during operation, thereby improving the safety of the equipment. The two liquid collecting tanks 201 are respectively arranged directly below the two ends of the stainless steel pipe, and are used to collect the electrolyte flowing out from the two ends of the stainless steel pipe during electrolytic polishing, so as to realize the recovery of the electrolyte, thereby reducing the loss of the electrolyte and reducing the production cost of the equipment.

[0036] Further improvements are, Figure 4As shown, cathode 4 comprises a flexible conductive core 401 and an insulating sheath 402 wrapped around conductive core 401. Insulating sheath 402 is provided with a circular cutout 403. Multiple circular cutouts 403 are provided, each equally spaced along the extension direction of conductive core 401. Insulating sheath 402 isolates conductive core 401 from the stainless steel tube, preventing short circuits during electropolishing. The provision of circular cutouts 403 allows contact between the cathode and the electrolyte, enabling normal operation of the electropolishing equipment. The provision of multiple circular cutouts results in more uniform current distribution, improving the effectiveness and efficiency of electropolishing the stainless steel tube.

[0037] Further improvements are, Figure 5 As shown, there are multiple elastic positioning members 7 distributed at equal intervals along the extension direction of the conductive core 401, and the elastic positioning members 7 are staggered with the annular cutouts 403. The elastic positioning members 7 include two fixed sleeves 702 that are sleeved on the outer periphery of the insulating outer skin 402. An elastic support bar 701 is fixedly connected between the two fixed sleeves 702. The support bar 701 is an arc-shaped structure, and each support bar 701 is distributed at equal intervals around the axis of the fixed sleeve 702. The fixing sleeve 702 is sleeved on the insulating outer skin 402 to achieve a fixed connection between the support bar 701 and the cathode 4. The support bar 701 is made of spring steel and a polytetrafluoroethylene layer is provided on its outer surface, so that the support bar 701 has excellent elasticity, insulation performance and corrosion resistance, and a small friction coefficient, which can reduce the resistance of the cathode 4 when plugging and pulling out inside the stainless steel tube; the elasticity of the support bar 701 allows it to be supported on the inner wall of the stainless steel tube when it is located inside the stainless steel tube, and multiple support bars 701 are used to support it simultaneously along different radial directions, so that the fixing sleeve 702 and the stainless steel tube remain coaxial, and then the cathode 4 is positioned inside the stainless steel tube through the fixing sleeve 702; and the elastic support bar 701 can be compressed, so that it can be used with stainless steel tubes of different inner diameters, with a wide range of applications and strong practicality.

[0038] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An electrolytic polishing equipment for ultra-long stainless steel tubes, characterized in that: include: Rack (1); an anode (5) fixedly connected to the top surface of the frame (1), the top surface of the anode (5) having a positioning groove (502) for placing a stainless steel pipe, and the anode (5) being in electrical communication with the stainless steel pipe; a clamping mechanism (6), disposed on the frame (1), and used to fix the stainless steel tube in the positioning groove (502); A cathode (4) is inserted into the interior of the stainless steel tube; An elastic positioning member (7) is sleeved on the outer periphery of the cathode (4) and abuts against the inner wall of the stainless steel tube, and is used to maintain the spacing distance between the cathode (4) and the stainless steel tube; An electrolyte circulation mechanism is provided on the frame (1) and is used to control the electrolyte to flow through the interior of the stainless steel tube.

2. The ultra-long stainless steel pipe electrolytic polishing equipment according to claim 1, characterized in that: A plurality of anodes (5) are provided, each of the anodes (5) extending along the width direction of the frame (1), an insulating pad (501) is provided between the anode (5) and the frame (1), and each of the anodes (5) is distributed at equal intervals along the length direction of the frame (1).

3. The ultra-long stainless steel tube electrolytic polishing equipment according to claim 1, characterized in that: The clamping mechanism (6) comprises a fixing frame (601) fixedly connected to the frame (1); the fixing frame (601) is provided with a lifting column (602) which slides vertically; the top and bottom ends of the lifting column (602) are respectively fixedly connected to an insulating handle (603) and a pressing block (604); a spring (605) is sleeved on the lifting column (602); and the two ends of the spring (605) are respectively connected to the fixing frame (601) and the pressing block (604).

4. The ultra-long stainless steel tube electrolytic polishing equipment according to claim 1, characterized in that: The electrolyte circulation mechanism comprises a liquid collecting tank (201) and a liquid storage tank (204) respectively arranged at both ends of the frame (1); the top of the liquid collecting tank (201) is open; a power pump (203) is arranged between the liquid collecting tank (201) and the liquid storage tank (204); the liquid storage tank (204) is connected to an insulating joint (206) via a hose (205); and the hose (205) is installed with a valve (207).

5. The ultra-long stainless steel tube electrolytic polishing equipment according to claim 4, characterized in that: Both ends of the frame (1) are provided with a liquid collecting tank (201) with an open top, the two liquid collecting tanks (201) are connected via a pipe (202), and one of the liquid collecting tanks (201) is connected to the liquid storage tank (204) via a power pump (203).

6. The ultra-long stainless steel tube electrolytic polishing equipment according to claim 1, characterized in that: The cathode (4) comprises a flexible conductive core (401) and an insulating outer skin (402) wrapped around the conductive core (401), wherein the insulating outer skin (402) is provided with a ring cut (403).

7. The ultra-long stainless steel tube electrolytic polishing equipment according to claim 6, characterized in that: A plurality of the annular cutouts (403) are provided, and the annular cutouts (403) are distributed at equal intervals along the extension direction of the conductive core (401).

8. The electrolytic polishing equipment for ultra-long stainless steel pipes according to claim 6, characterized in that: A plurality of elastic positioning members (7) are evenly spaced along the extension direction of the conductive core (401), and the elastic positioning members (7) and the annular cutouts (403) are arranged in an interlaced manner. The elastic positioning member (7) comprises two fixing sleeves (702) sleeved on the outer periphery of the insulating outer skin (402), and an elastic support bar (701) is fixedly connected between the two fixing sleeves (702). The support bar (701) is an arc-shaped structure, and each of the support bars (701) is evenly spaced around the axis of the fixing sleeve (702).

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