Electrochemical polishing equipment for stainless steel thick pipe

Abstract

The utility model relates to the technical field of electrochemical polishing equipment, in particular to electrochemical polishing equipment for a stainless steel thick pipe, which comprises a rack, a first water tank, a second water tank, a supporting assembly and a clamping assembly are arranged on the rack and are arranged at intervals along the same straight line length, and a workpiece placed on the rack is subjected to electrochemical polishing through the supporting assembly and the clamping assembly. The first water tank and the second water tank are used for supplying and recycling liquid medicine to workpieces placed between the first water tank and the second water tank. The first water tank and the second water tank are located at the two ends of the rack correspondingly. The supporting assembly and the clamping assembly are located between the first water tank and the second water tank. The clamping assembly is a rotatable clamping assembly; the supporting assembly is a liftable supporting assembly. The electrochemical polishing device can be used for carrying out electrochemical polishing treatment on the interior of the stainless steel pipe fitting with a large pipe diameter, provides stable support for a workpiece in machining, and can realize batch operation.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical polishing equipment, in particular to electrochemical polishing equipment for a stainless steel thick pipe. Background Art

[0002] Electrochemical polishing is a technical method that uses electrochemical processes to improve the surface finish of metals. During the polishing operation, 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 in the electrolytic cell (the liquid here refers to the electrolytic polishing liquid used for electrochemical polishing). 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, making the surface of the workpiece smoother.

[0003] The traditional process and related equipment of electrochemical polishing are not up to the task when processing straight and long pipe fittings. This type of pipe fitting has an arc-shaped inner surface, and its consistency during processing is difficult to control at a longer size. Among them, due to its long length, stainless steel long straight pipe fittings need to be supported at multiple locations along the length direction of the pipe body to prevent the pipe body from deforming during processing and affecting the processing effect. When processing pipe fittings with thicker diameters, it is also necessary to rotate the pipe body continuously to prevent the liquid from partially precipitating or concentrating at the bottom of the inner cavity of the pipe, which affects the consistency. Therefore, it is very important to ensure the stability of the workpiece posture during processing, which requires not only that it can rotate, but also that it is supported at multiple locations. Manual operation is not only prone to rapid accumulation of fatigue and inability to continue working, but also difficult to improve work efficiency, and it is very easy to produce various unstable factors that affect the final processing quality. In addition, the overall weight of thicker pipe fittings is large, and it is extremely difficult for a single person to operate, which consumes more manpower and working time in supporting the workpiece, rotating the pipe fittings during the processing process, and collecting the materials, resulting in low overall work efficiency. The existence of these problems leads to corresponding problems that are difficult to overcome in batch operations, which hinders the improvement of production capacity. Utility Model Content

[0004] The purpose of the utility model is to provide a stainless steel thick tube electrochemical polishing device 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 equipment for thick stainless steel tubes comprises a frame, on which a workpiece to be processed is placed for electrochemical polishing, wherein the frame is provided with a first water tank, a second water tank, a support assembly, and a clamping assembly, which are arranged at intervals along the same straight length direction, and the workpiece placed on the frame is polished by the support assembly and the clamping assembly, and the workpiece placed between the first water tank and the second water tank is supplied with and recovered with chemical solution;

[0007] The first water tank and the second water tank are respectively located at two ends of the frame, and the supporting assembly and the clamping assembly are located between the first water tank and the second water tank;

[0008] The clamping assembly adopts a rotatable clamping assembly to ensure that the workpiece can rotate after being clamped (here, rotation means that the workpiece rotates along its own axial center line as the rotation axis), so that the liquid flowing through the tube can fully infiltrate all parts of the inner wall of the tube, and also the inner wall of the tube can be uniformly electrolytically oxidized.

[0009] The support assembly adopts a liftable support assembly to ensure that when the clamping assembly clamps workpieces of different diameters, it can be lifted to an appropriate position so that the workpiece is better supported, thereby eliminating the deformation caused by the weight of the pipe body and avoiding the situation affecting the processing quality.

[0010] The utility model is provided with a liftable support component and a rotatable clamping component, so that straight and long pipe fittings with larger diameters can be conveniently and quickly supported and rotated during processing during electrolytic polishing operations, thereby reducing the degree of manual labor, improving operation consistency and sustainable operation time.

[0011] Preferably, the support assembly includes a workpiece support platform having at least two slots spaced apart from each other, any one of the slots corresponding to a workpiece, and when supporting the workpiece, the tube body of the workpiece is mounted in the slot.

[0012] Preferably, the clamping assembly corresponds one-to-one to the slots on the workpiece support platform of the same support assembly.

[0013] Preferably, the clamping assembly comprises a support seat, a gear set and a clamping member, wherein the clamping member is slidably connected to the support seat, the support seat is provided with an arc-shaped recess, the outer wall of the clamping member is provided with a slider, the arc-shaped recess of the support seat is provided with a slide groove, and after the slider is embedded in the slide groove, the clamping member can rotate;

[0014] The clamping member comprises two semi-annular components, one end of each of the two semi-annular components is hinged to each other, the other end of one of the semi-annular components is provided with a locking head, and the other end of the other semi-annular component is provided with a locking seat corresponding to the locking head, so that the two semi-annular components are opened to form an opening for facilitating the insertion of a workpiece, and after being closed, the locking head is locked to the locking seat to restrict the workpiece within the annular ring formed by the two semi-annular structures;

[0015] The gear set includes a driving gear, a driven gear and a toothless gear, which are meshed with each other. The toothless gear is arranged in contact with the outer walls of the two semi-circular components and is fixed to the semi-circular components. The driving gear obtains power through the transmission shaft and the chain and then passes through the driven gear and the toothless gear to make the clamping member rotate along the slide groove on the support seat, thereby rotating the workpiece clamped by it.

[0016] Preferably, the clamping assembly includes a clamping piece and an adjusting bolt, the clamping piece is located in an annular ring formed by the two semi-annular components, the adjusting bolt passes through a screw hole on one of the semi-annular components and is connected to the clamping piece, and the position of the clamping piece is adjusted by screwing the adjusting bolt in and out to move it toward the center position of the annular ring or away from the center position in the opposite direction.

[0017] Preferably, the support assembly comprises a worm screw lifting mechanism, the top of the worm screw lifting mechanism is connected to the workpiece support platform, and the bottom is fixed to the support structure of the frame.

[0018] Preferably, a guide rail groove is provided at the bottom of the first water tank, a guide rail is provided on the frame, and the guide rail is inserted into the guide rail groove, so that the first water tank can reciprocate along the length direction of the guide rail;

[0019] The first water tank is connected to a telescopic rod of a cylinder.

[0020] Preferably, the first water tank is provided with a medicine liquid input interface, the medicine liquid input interface is externally connected to a hose, and the hose is externally provided with a drag chain.

[0021] The utility model can ensure that the first water tank will not affect the supply of liquid medicine when it moves back and forth by arranging the drag chain and the hose, and can also provide corresponding protection for the external hose structure.

[0022] Preferably, a liquid medicine tank is provided on one side of the frame, the liquid medicine tank has a liquid supply port and a liquid return port, and the liquid supply port is connected to the first water tank through a liquid supply pump;

[0023] The second water tank is connected to the liquid return port.

[0024] Preferably, a heating component is provided in the medicine tank.

[0025] Beneficial effects: Due to the adoption of the above technical solution, the utility model can perform electrochemical polishing treatment inside stainless steel pipes with larger diameters, provide stable support for the workpieces being processed, and can correspond to workpieces with different diameters; in addition, with the multi-station structure design, batch operations can be achieved to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A structural schematic diagram of the utility model;

[0027] Figure 2 for Figure 1 A schematic diagram when looking down;

[0028] Figure 3 It is a schematic diagram of the anode connection structure of the workpiece in some applications of the utility model;

[0029] Figure 4 This is a schematic diagram of the positive and negative connection structure of the power supply of the utility model in some applications;

[0030] Figure 5 A structural schematic diagram of a support assembly of the utility model;

[0031] Figure 6 It is a connection schematic diagram of the rotating structure of the clamping assembly of the utility model;

[0032] Figure 7 A structural schematic diagram of the clamping assembly of the utility model;

[0033] Figure 8 It is a connection diagram of the lifting structure of the support assembly of the utility model;

[0034] Fig. 9 It is a structural schematic diagram of the first water tank side of the utility model;

[0035] Fig.10 It is a structural schematic diagram of the second water tank side of the utility model;

[0036] Fig.11 It is a connection schematic diagram of the liquid medicine circulation pipeline of the utility model. DETAILED DESCRIPTION

[0037] 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.

[0038] Reference Figure 1 , Figure 2 , electrochemical polishing equipment for thick stainless steel tubes, including a frame structure formed by connecting a plurality of brackets arranged vertically and horizontally, and a cover plate 101 that can be opened and closed is arranged on the outer side. Structures such as power supplies and weak current control cabinets can be installed and placed inside the frame structure, and power supply units such as motors are also built in it. A foot 102 and a roller 103 are arranged at the bottom of the frame 100. The bottom surface of the foot 102 has a rubber cushion layer. When the frame 100 is affected by the vibration of the motor during operation, the cumulative effect of these vibrations can be diluted to reduce the impact on the processing quality. The roller 103 can provide assistance when the frame needs to be moved.

[0039] The workpiece 9 to be processed is placed on the top of the support mechanism of the frame 100 for electrochemical polishing.

[0040] The frame 100 is provided with a first water tank 201, a second water tank 202, a support assembly 300, and a clamping assembly 400, which are all arranged at intervals along the same straight length direction. The support assembly 300 and the clamping assembly 400 are used to supply and recover the workpiece 9 placed on the frame 100, and the first water tank 201 and the second water tank 202 are used to supply and recover the workpiece 9 placed therebetween.

[0041] The first water tank 201 and the second water tank 202 are respectively located at two ends of the frame 100, and the support assembly 300 and the clamping assembly 400 are located between the first water tank 201 and the second water tank 202;

[0042] The clamping assembly 400 is a rotatable clamping assembly, which has a clamping part that can rotate after clamping the workpiece 9 (this structure is actually the matching structure of the "clamping member" and the "gear set" described later) to ensure that the tube body of the workpiece 9 can maintain rotatability after being clamped, so that the liquid flowing through the tube can fully infiltrate all parts of the inner wall of the tube, and also make the inner wall of the tube be uniformly electrolytically oxidized.

[0043] The support assembly 300 is a liftable support assembly, which has a support portion that can be placed to support the workpiece 9 and a lift portion that can lift the support portion, so that when the clamping assembly 400 clamps workpieces of different diameters, the support assembly 300 can be lifted to an appropriate position so that the entire workpiece 9 is well supported, thereby eliminating the deformation caused by the weight of the tube body and avoiding the situation affecting the processing quality. That is to say, by adjusting the height of the support assembly 300, it can be ensured that the workpiece 9 is in a straight state as a whole, reducing or even offsetting the deformation caused by the weight.

[0044] The utility model is used for processing stainless steel long straight rod pipe fittings with a pipe diameter of DN25 to DN100, and electrochemical polishing processing is performed on the inside of the pipe.

[0045] It should be noted that a carbon brush is provided on the tube of the workpiece 9 so that it can always contact the conductive metal sheet when rotating, thereby connecting to the positive electrode of the power supply. Figure 3 As shown, a plurality of tube clamp structures 601 are provided on the tube body of the workpiece 9, on which a carbon brush head 602 is provided, and a metal conductive sheet 603 is provided directly below the carbon brush head 602, and the metal conductive sheet 603 is connected to the positive electrode of the power supply. The power supply 604 can be provided in the support structure of the frame 100 ( Figure 3 In the structure shown, the frame 100 only shows the side support strips), and correspondingly, the first water tank, the second water tank, the support assembly, and the clamping assembly are all arranged on the top of the support structure of the frame. Figure 4 As shown, the positive electrode 6041 of the power source 604 is connected to a plurality of metal conductive sheets 603 - 1 and then electrically connected to the tube body of the workpiece. Figure 4 In the structure shown, the metal tube clamp structure 601 to which the carbon brush head 602 is fixed has not yet been set on the workpiece. In subsequent implementation, after the workpiece is placed in place, the tube clamp structure 601 can be sleeved onto the tube body of the workpiece to clamp it.

[0046] It should be noted that, after the tube clamp structure 601 clamps the tube body of the workpiece, it is not clamped to be integrally connected, but the tube body of the workpiece is allowed to maintain the ability to rotate within the clamping range of the tube clamp structure 601 .

[0047] In order to realize batch operation, the utility model can be arranged according to the following structure: Figure 5As shown, in some embodiments, the support assembly 300 includes a workpiece support platform 301, and the workpiece support platform 301 has at least two slots 3001 spaced apart from each other. Any slot 3001 corresponds to a workpiece. When supporting the workpiece, the tube body of the workpiece is mounted in the slot 3001.

[0048] In some preferred embodiments, to facilitate the placement of the workpiece, a guide wheel 302 is provided in any slot 3001. The wheel surface of the guide wheel 302 can be made of soft materials such as plastic or rubber, which can prevent the outer wall of the workpiece tube from being damaged by rotation during material placement or processing.

[0049] In some embodiments of the present invention, multiple processing stations can be set on the same frame to place a corresponding number of workpieces for simultaneous processing in the same batch. Under this structural setting, the clamping assembly 400 corresponds to the slot 3001 on the workpiece support table 301 of the same support assembly 300.

[0050] In order to better clamp the outer wall of a workpiece with a larger diameter, the clamping assembly of the utility model adopts a structure that can still rotate after clamping the workpiece. To achieve this structure, the following settings can be made:

[0051] like Figure 6 , Figure 7 As shown, in some embodiments, the clamping assembly 400 includes a support seat 401, a gear set and a clamping member 403, wherein the clamping member 403 is slidably connected to the support seat 401, the support seat 401 is provided with an arc-shaped recess, the outer wall of the clamping member 403 is provided with a slider, the arc-shaped recess of the support seat 401 is provided with a slide groove, and after the slider is embedded in the slide groove, the clamping member 403 can rotate;

[0052] The clamping member 403 includes two semi-annular components 4031, and the two semi-annular components 4031 are hinged to each other at one end of either one of them, and a hinge structure 4034 is provided at the hinged end. A lock head 4032 is provided at the other end of one of the semi-annular components, and a lock seat 4033 corresponding to the lock head is provided at the other end of the other semi-annular component, so that the two semi-annular components 4031 are opened to form an opening for facilitating the insertion of a workpiece, and after closing, the lock head 4032 is locked to the lock seat 4033, so that the workpiece is confined in the annular ring formed by the two semi-annular structures 4031;

[0053] The gear set includes a driving gear 4021, a driven gear 4022 and a toothless gear 4023, which are meshed with each other. The toothless gear 4023 is arranged to fit the outer walls of the two semi-circular components 4031 and is fixedly connected to the semi-circular components. The driving gear 4021 obtains power through the transmission shaft and the chain 4024, and then passes through the driven gear 4022 and the toothless gear 4023 to make the clamping member 403 rotate along the slide groove on the support seat 401, thereby rotating the workpiece clamped by it.

[0054] Figure 7 In the structure shown, the gear set configuration of the rotation drive mechanism of the clamping assembly 400 includes a driving gear 4021, a primary driven gear, and a secondary driven gear, which are meshed in sequence, and the clamping member 403 is driven to rotate after the secondary driven gear meshes with the toothless gear 4023. Since the annular ring composed of the two semi-annular members 4031 needs to be opened and closed when taking and releasing materials, the gear connected thereto is set to a toothless structure;

[0055] like Figure 6 As shown, the power of the driving gear 4021 is obtained from the motor installed in the bracket structure of the frame 100 (the structure is arranged below the clamping assembly) through the transmission shaft (the transmission shaft is fixed on the support plate, and the support plate is fixed on the base plate of the support seat 401) and the chain 4024. When corresponding to the equipment structure that can be operated in batches, the clamping parts of multiple clamping assemblies can be driven to rotate simultaneously through the transmission shaft, sprocket and chain. The illustrated structure shows a clamping structure with four groups of clamping assemblies configured with a single motor, which can correspond to the electrochemical processing of four stainless steel thick pipes at the same time.

[0056] In order to ensure the clamping effect of the clamping assembly on the workpiece, the utility model can be arranged according to the following structure: Figure 7 As shown, in some embodiments, the clamping assembly 400 includes a clamping member 404 and an adjusting bolt 405. The clamping member 404 is located in an annular ring formed by two semi-annular members 4031. The adjusting bolt 405 passes through the screw hole on one of the semi-annular members and is connected to the clamping member 404. The position of the clamping member 404 is adjusted by screwing the adjusting bolt 405 in and out, so that it moves toward the center position of the annular ring or moves away from the center position in the opposite direction.

[0057] In some of the embodiments, in order to further enhance the protection effect on the outer wall of the pipe during clamping, a buffer pad may be provided on the surface of one side of the clamping member 404 facing the center of the annular ring.

[0058] Based on the above examples, in some preferred embodiments, the buffer pad is made of silicone or rubber and is attached to the surface of the clamping member when set.

[0059] In some of the embodiments, in order to optimize the clamping effect, the clamping member may be configured to have an arc-shaped structure.

[0060] In some preferred embodiments, Figure 7As shown, the arc structure of the clamping member 404 is arranged in accordance with the shape of the semi-circular member. For example, after the clamping member with an arc structure is arranged, when the adjusting bolt 405 is adjusted to the limit, its outer surface can completely fit the inner surface of the semi-circular member on its side. This structural arrangement can maximize the space that can be formed in the annular ring after the clamping member 404 is adjusted to the limit away from the center position of the annular ring, thereby corresponding to the clamping requirements of stainless steel thick pipes of more sizes during processing.

[0061] In some embodiments, while ensuring the clamping effect, the damage to the outer wall of the workpiece can be further reduced, and the clamping parts can be symmetrically arranged. Figure 7 That is, in the annular ring formed by the two semi-annular members, two clamping members are symmetrically arranged so that the two are arranged face to face, and the adjusting bolt connected to one clamping member passes through the screw hole on one semi-annular member, and the adjusting bolt connected to the other clamping member passes through the screw hole on the other semi-annular member.

[0062] It should be noted that the screw hole on the semi-annular component has an internal thread, and the outer wall of the adjusting bolt is provided with a matching external thread.

[0063] In addition, the clamping assembly has a larger base to increase the supporting effect. Under this structural setting, the insufficient size of the frame in the overall width (this direction is equivalent to the length direction perpendicular to the workpiece) can be alleviated by staggering the clamping assemblies. This structural setting can make the frame more compact in width.

[0064] In order to realize the lifting structure of the support assembly, the utility model can be arranged as follows: Figure 5 , Figure 8 As shown, in some embodiments, the support assembly 300 includes a worm screw lifting mechanism 3001 , the top of the worm screw lifting mechanism 3001 is connected to the workpiece support platform 301 , and the bottom is fixed to the support structure of the frame 100 .

[0065] It should be noted that the utility model adopts a turbine screw lifting mechanism to realize the lifting and lowering of the workpiece support platform of the support assembly, so that the workpiece supported by it is also lifted and lowered synchronously, so that the tube body of the workpiece is a straight rod structure as a whole, avoiding structural deformation caused by partial collapse of the structure due to the weight of the workpiece, thereby preventing it from affecting the processing quality.

[0066] The worm screw lifting mechanism 3001 can adopt a commercially available worm screw lifting machine.

[0067] In the case of a relatively long workpiece, the utility model sets multiple sets of support components so that the long pipes are supported at certain intervals. When multiple sets of support components are set, in order to achieve the synchronous lifting and lowering of the workpiece support tables of all support components and reduce the time and manpower required for adjustment, the following structure can be set:

[0068] The opposite ends of the horizontal worm segments of the worm screw lifting mechanisms of adjacent supporting assemblies are connected to each other through a coupling, and the horizontal worm segment of the worm screw lifting mechanism of one supporting assembly is extended to the other end and connected to a transmission worm segment of a worm vertical transmission mechanism. The control worm segment of the worm vertical transmission mechanism passes through the side of the support structure of the frame and is connected to a handwheel for easy operation.

[0069] like Figure 1 , Figure 2 , Figure 8 As shown, in the present invention, three groups of support components are provided to support the workpiece, and the ends of the opposite horizontal worm segments 30011 of two adjacent support components are connected to the transmission worm segment 30021 of the worm vertical transmission mechanism 3002 located between the two, and the extended end of the control worm segment 30022 of the worm vertical transmission mechanism 3002 passes through the side plate of the frame and is connected to the handwheel 3003. There are bearing seats 104 and bearings on the side plate of the frame, and the control worm segment 30022 passes through the bearing and is connected to the handwheel 3003.

[0070] In some preferred embodiments, to ensure the stability of lifting, a support rod 303 is provided at each end of the workpiece support platform 301, and its structure can be set as a telescopic sleeve rod structure, so that when the worm screw lifting mechanism 3001 plays a lifting control role, the workpiece support platform can be balanced. The worm screw lifting mechanism 3001 is set between the two support rods 303.

[0071] In order to facilitate loading, the utility model can set the first water tank as a pushable structure, that is, the first water tank can reciprocate along the length direction of the workpiece, so that after the workpiece is placed in place, the first water tank is moved toward the end of the workpiece, so that the end of the workpiece is immersed in the first water tank. The specific structure can be set as follows: In some embodiments, such as Fig. 9 As shown, a guide rail groove is provided at the bottom of the first water tank 201, and a guide rail 20101 is provided on the frame, and the guide rail 20101 can be fixed to the top of the frame. The guide rail 20101 is inserted into the guide rail groove, so that the first water tank 201 can reciprocate along the length direction of the guide rail 20101;

[0072] The first water tank 201 is connected to the telescopic rod of the cylinder 600 .

[0073] like Fig. 9As shown, the telescopic rod of the cylinder 600 is connected to the bottom of the first water tank 201, and the cylinder 600 can be fixed on the frame.

[0074] Fig. 9 In the structure shown, after the top cover of the first water tank 201 is hidden, a liquid medicine supply port 701 for supplying medicine is provided in the tank. The utility model has four processing stations on the same frame 100, and four workpieces 9 corresponding to the same batch can be processed simultaneously. Therefore, four liquid medicine supply ports 701 are provided in the first water tank 201, and all the liquid medicine supply ports 701 are connected to the same main pipe 702 and then connected to the liquid medicine tank 800.

[0075] The utility model is before feeding, such as Fig. 9 , Fig.10 As shown, the first water tank 201 is first pushed toward one end of the frame 100 by the air cylinder 600 to make room for material discharge. After the workpiece 9 is inserted into the electrode guide rod 901, one end of the electrode guide rod 901 is inserted into the opening on the inlet side plate of the second water tank 202. An insulator 20201 is provided in the second water tank 202 for facilitating the placement of the workpiece 9. The end of the electrode guide rod 901 exposed outside the workpiece is clamped by a metal clamp and connected to the negative pole of the power supply. Fig.10 In the structure shown, the metal clamp is connected to the metal conductive sheet 603-3 through the wire 603-2, and the metal conductive sheet 603-3 is connected to the negative electrode of the power supply after passing through the second water tank 202. Fig. 9 As shown, the first water tank 201 is pulled back by the cylinder 600 so that the other end of the electrode guide rod 901 penetrates into the liquid medicine supply port 701 .

[0076] Based on the above example, the utility model can be configured as follows to ensure the supply of liquid medicine when the first water tank can be reciprocated: Fig. 9 As shown, the first water tank 201 is provided with a medicine liquid input interface, the medicine liquid input interface is externally connected to a hose 703 , and a drag chain 704 is externally provided to the hose 703 .

[0077] The utility model provides a drag chain 704 and a hose 703 to ensure that when the first water tank 201 moves back and forth, the liquid medicine supply pipeline (hose) can freely shrink and adjust its posture without affecting the liquid medicine supply. At the same time, corresponding protection can also be provided for the external hose structure.

[0078] It should be noted that the liquid medicine input interface on the first water tank 201 is connected to the main pipe 702 for distributing liquid medicine in the tank, and the main pipe 702 has interfaces corresponding to the number of processing stations, and each interface is connected to a liquid medicine supply port 701. After the material is put into place, the first water tank 201 is pulled back by the cylinder 600, so that the workpiece 9 and the electrode guide rod 901 are both extended into the opening of the liquid medicine supply port 701. When the liquid is supplied, the liquid medicine flows into the inner cavity of the tube of the workpiece 9.

[0079] In order to realize the supply of liquid medicine, the utility model can be arranged as follows: In some embodiments, Figure 1 , Fig. 9 , Fig.11 As shown, a liquid medicine tank 800 is provided on one side of the frame 100. The liquid medicine tank 800 has a liquid supply port and a liquid return port. The liquid supply port is connected to the first water tank 201 through a liquid supply pump 801.

[0080] The second water tank 202 is connected to the liquid return port.

[0081] like Figure 1 , Figure 2 , Fig.11 As shown, the medicine water tank is connected to the first water tank 201 through a liquid supply pump 801. The liquid return structure of the utility model includes a liquid return pump 802 and a liquid return pipeline, and the liquid return pump 802 is connected to the liquid return port of the medicine water tank 800 through the first liquid return pipe 8001. The second water tank is connected to the third water tank 203 through the second liquid return pipe, and the third water tank 203 is located below the first water tank 201. The first water tank 201 is also connected to the third water tank 203 through the pipe interface and pipeline at its bottom.

[0082] The third water tank 203 is connected to the liquid return pump 802 .

[0083] It should be noted that the pipeline for supplying or recovering the liquid medicine can be arranged along the side of the support structure of the rack.

[0084] Based on the above examples, in order to ensure that the medicine liquid is at a suitable temperature, the present invention can be configured as follows: In some embodiments, a heating component is provided in the medicine tank 800 .

[0085] In some preferred embodiments, the heating component adopts a polyfluoroethylene heating tube.

[0086] In summary, the utility model, by providing a liftable support assembly and a rotatable clamping assembly, can conveniently and quickly support and rotate straight and long pipes with larger diameters during electrolytic polishing operations, thereby reducing the degree of manual labor, improving operation consistency and sustainable operation time.

[0087] 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. Electrochemical polishing equipment for stainless steel thick tubes, including a frame, characterized in that: The frame is provided with a first water tank, a second water tank, a support assembly, and a clamping assembly, which are arranged at intervals along the same straight length direction. The first water tank and the second water tank are respectively located at two ends of the frame, and the supporting assembly and the clamping assembly are located between the first water tank and the second water tank; The clamping assembly is a rotatable clamping assembly; The supporting component is a liftable supporting component.

2. The electrochemical polishing equipment for thick stainless steel tube according to claim 1, characterized in that: The support assembly comprises a workpiece support platform, wherein the workpiece support platform has at least two slots spaced apart from each other, and any of the slots corresponds to a workpiece.

3. The electrochemical polishing equipment for thick stainless steel tube according to claim 2, characterized in that: The clamping assembly corresponds one-to-one to the slots on the workpiece supporting platform of the same supporting assembly.

4. The electrochemical polishing equipment for thick stainless steel tube according to claim 1, characterized in that: The clamping assembly comprises a support seat, a gear set and a clamping member, wherein the clamping member is slidably connected to the support seat, the support seat is provided with an arc-shaped recess, the outer wall of the clamping member is provided with a slider, the arc-shaped recess of the support seat is provided with a slide groove, and the slider is embedded in the slide groove; The clamping member comprises two semi-annular components, one end of each of the two semi-annular components is hinged to each other, the other end of one semi-annular component is provided with a lock head, and the other end of the other semi-annular component is provided with a lock seat corresponding to the lock head; The gear set comprises a driving gear, a driven gear and a toothless gear, which are meshed with each other. The toothless gear is arranged in contact with the outer walls of the two semi-circular components and is fixed to the semi-circular components.

5. The electrochemical polishing equipment for thick stainless steel tube according to claim 4, characterized in that: The clamping assembly comprises a clamping piece and an adjusting bolt. The clamping piece is located in an annular ring formed by two semi-annular components. The adjusting bolt passes through a screw hole on one of the semi-annular components and is connected to the clamping piece.

6. The electrochemical polishing equipment for thick stainless steel tube according to claim 2, characterized in that: The support assembly comprises a turbine screw lifting mechanism, the top of which is connected to the workpiece support platform, and the bottom of which is fixed to the support structure of the frame.

7. The electrochemical polishing equipment for thick stainless steel tube according to claim 1, characterized in that: A guide rail groove is provided at the bottom of the first water tank, and a guide rail is provided on the frame, and the guide rail is inserted into the guide rail groove; The first water tank is connected to a telescopic rod of a cylinder.

8. The electrochemical polishing equipment for thick stainless steel tube according to claim 7, characterized in that: The first water tank is provided with a medicine liquid input interface, the medicine liquid input interface is externally connected to a hose, and a tow chain is externally provided to the hose.

9. The electrochemical polishing equipment for thick stainless steel pipe according to any one of claims 1 to 8, characterized in that: A liquid medicine tank is provided on one side of the frame, the liquid medicine tank has a liquid supply port and a liquid return port, and the liquid supply port is connected to the first water tank through a liquid supply pump; The second water tank is connected to the liquid return port.

10. The electrochemical polishing equipment for thick stainless steel pipe according to claim 9, characterized in that: A heating component is arranged in the medicine tank.

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