Electrochemical polishing equipment for stainless steel thin tube

Abstract

The utility model relates to the technical field of metal surface machining, in particular to electrochemical polishing equipment for stainless steel thin tubes, which comprises a rack, a first water tank, a clamping component and a second water tank are arranged on the rack, the clamping component is positioned between the first water tank and the second water tank, and the first water tank and the second water tank are respectively positioned at two ends of the rack; opposite side plates of the first water tank and the second water tank are each provided with an open hole facilitating penetration of the end of a workpiece. The clamping assembly is provided with a workpiece clamping position facilitating clamping of a workpiece. The second water tank is connected with the first water tank through a first delivery pump, and the liquid level limit of the first water tank is higher than that of the second water tank; a feeding and discharging assembly is arranged on one side of the first water tank. Closed internal circulation of liquid medicine is achieved, and it is guaranteed that the liquid medicine is not prone to volatilizing or being polluted by the outside; loading and unloading operations are labor-saving, the labor burden is reduced, and the continuous operation efficiency is improved; batch operation is achieved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal surface processing, in particular to an electrochemical polishing device for a stainless steel capillary tube. Background Art

[0002] Electrochemical polishing is a technical method that uses electrochemical processes to improve the surface finish of metals. During 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., electrolytic polishing liquid) 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] The traditional electrochemical polishing process and related equipment 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 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. During the processing, compared with pipe fittings with thicker diameters, pipe fittings with thinner diameters are more prone to bending and deformation on the basis of their small weight. Manual loading and unloading can easily lead to deformation. When the length is long, the loading and unloading process often requires the cooperation of multiple people, which will consume more manpower and cannot effectively ensure the quality of the work. In addition, when processing thin tube-type workpieces, as the liquid flows in the inner cavity of the tube, it is easy to cause the support position to shake, which poses a hidden danger of affecting the consistency of the operation. Utility Model Content

[0004] The purpose of the utility model is to provide a stainless steel capillary 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 stainless steel capillary tubes comprises a frame, on which a workpiece is placed for electrochemical polishing, wherein a first water tank, a clamping assembly, and a second water tank are provided on the frame, the clamping assembly is located between the first water tank and the second water tank, and the first water tank and the second water tank are located at two ends of the frame respectively;

[0007] The facing side panels of the first water tank and the second water tank are both provided with openings for facilitating the insertion of the end of the workpiece;

[0008] The clamping assembly has a workpiece clamping position for facilitating clamping of the workpiece;

[0009] The second water tank is connected to the first water tank through a first delivery pump so as to circulate the electrochemical polishing liquid so that it circulates between the first water tank, the second water tank and the workpiece, and the liquid level high limit of the first water tank is higher than the liquid level high limit of the second water tank;

[0010] A material feeding and withdrawing assembly is provided on one side of the first water tank so as to assist the loading and withdrawing of workpieces through the material feeding and withdrawing assembly.

[0011] The utility model connects the openings at both ends of the pipe body of the workpiece through the first water tank and the second water tank, so that the medicine liquid can circulate under the pumping of the first delivery pump, and the loading and unloading of materials can be realized under the operation of a single person through the feeding and retracting components, thereby reducing the burden of manual loading and unloading.

[0012] Preferably, the material feeding and withdrawing assembly includes a driving roller, a driven roller, a lifting assembly, and a motor, and the motor is connected to the driving roller to drive the driving roller to rotate.

[0013] The active roller and the driven roller are arranged in parallel and spaced apart from each other;

[0014] The driven roller is connected to the lifting component. After the driven roller is driven up and down by the lifting component, the spacing distance between the roller surfaces of the driven roller and the active roller is adjusted, so as to clamp the workpiece during feeding and withdrawing. The clamped workpiece is fed or withdrawn when the active roller rotates.

[0015] Preferably, a distribution pipe is provided in the second water tank, and the distribution pipe has a liquid inlet and at least two liquid outlets, the liquid inlet is connected to the first delivery pump, and the liquid outlet faces the direction of the first water tank, so that the workpiece is extended into the second water tank and then into the liquid outlet, and after the first delivery pump pumps the liquid medicine from the first water tank to the distribution pipe, it flows through the inner cavity of the tube body of the workpiece, and then flows out and gathers in the first water tank.

[0016] Preferably, at least two clamping assemblies are provided, and at least two clamping assemblies are spaced apart between the first water tank and the second water tank.

[0017] Preferably, the clamping assembly comprises a support plate, a clamping block, and a cylinder, and the cylinder is connected to the clamping block;

[0018] The support plate is fixed on the frame, and a clamping position corresponding to the workpiece is provided on the support plate, and the clamping position is a concave structure concave from the upper end surface of the support plate;

[0019] The clamping block is located at one side of the support plate, and a clamping position corresponding to the clamping position is provided on the clamping block, and the clamping position is a concave structure recessed along the extension direction of the cylinder, so that after the workpiece is clamped into the clamping position on the support plate, the clamping block is pulled by the cylinder to clamp the workpiece, and then the workpiece is clamped into the clamping position. When the cylinder continues to work, it can ensure that the clamping force on the workpiece meets the processing requirements.

[0020] Preferably, the clamping assembly includes a base plate, a slider, a slide rail, and a clamping block base.

[0021] The clamping block is fixed on the clamping block base.

[0022] The slider is fixed to the bottom surface of the clamping block base, and the slider is inserted into the slide rail through its recessed structure.

[0023] The slide rail is fixed to the bottom plate.

[0024] The telescopic rod of the cylinder is connected to the clamping block base.

[0025] When the utility model is working, the cylinder drives the clamping block base, which drives the clamping block to move, and clamps the workpiece that has been placed in the clamping position of the support plate.

[0026] Preferably, the second water tank is connected to the first water tank via a second delivery pump.

[0027] Preferably, the second delivery pump is a magnetic pump.

[0028] Preferably, the first delivery pump is a diaphragm pump.

[0029] Preferably, a heating component is provided in the first water tank to control the temperature of the liquid medicine.

[0030] Beneficial effects: Due to the adoption of the above technical solution, the utility model has the following advantages:

[0031] 1) Realize the closed internal circulation of the medicine to ensure that the medicine is not easy to evaporate or be contaminated by the outside world;

[0032] 2) Save labor for loading and unloading operations, reduce labor burden, and improve continuous operation efficiency;

[0033] 3) Realize batch operation and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A structural schematic diagram of the utility model;

[0035] Figure 2 for Figure 1 A schematic diagram of the structure after the top sealing plates of the first water tank and the second water tank are hidden;

[0036] Figure 3 A schematic diagram of a connection of adjacent clamping components of the utility model;

[0037] Figure 4 A structural schematic diagram of the clamping assembly of the utility model;

[0038] Figure 5 It is a structural schematic diagram of the second water tank side of the utility model;

[0039] Figure 6 It is a structural schematic diagram of the first water tank side of the utility model;

[0040] Figure 7 for Figure 6 Schematic diagram of the structure when viewed from the feed and return side. DETAILED DESCRIPTION

[0041] 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.

[0042] Reference Figure 1 , Figure 2 The stainless steel capillary electrochemical polishing equipment includes a frame 100, and a workpiece 900 is placed on the frame 100 for electrochemical polishing. The frame 100 is formed into a frame structure by connecting a plurality of bracket bars arranged vertically and horizontally. A support plate is laid on the top of the frame for installation of related structural parts. A power supply 1001 and an electric control box 1002 are installed on the top of the frame 100. A foot 101 is provided at the bottom of the frame 100 to play a certain shock-absorbing and buffering role during the processing.

[0043] The frame 100 is provided with a first water tank 201, a second water tank 202, and a clamping assembly 300. The clamping assembly 300 is located between the first water tank 201 and the second water tank 202. The first water tank 201 and the second water tank 202 are respectively located at two ends of the frame 100.

[0044] The first water tank 201 and the second water tank 202 are provided with openings on the facing side plates for the ends of the workpiece 900 to pass through;

[0045] The clamping assembly 300 has a workpiece clamping position for conveniently clamping the workpiece 900;

[0046] The second water tank 202 is connected to the first water tank 201 through the first delivery pump 401 to circulate the electrochemical polishing liquid so that it circulates between the first water tank 201, the second water tank 202 and the workpiece 900, and the liquid level high limit of the first water tank 201 is higher than the liquid level high limit of the second water tank 202;

[0047] A material feeding and withdrawing assembly 500 is provided on one side of the first water tank 201 so as to assist the loading and withdrawing of workpieces.

[0048] In order to realize the material feeding and withdrawing components, the utility model can be arranged according to the following structure: Figure 6 , Figure 7 As shown, in some embodiments, the feeding and withdrawing component 500 includes an active roller 501, a driven roller 502, a lifting component 503, and a motor 504. The motor 504 is connected to the active roller 501 and drives it to rotate. The active roller 501 and the driven roller 502 are arranged in parallel and spaced apart from each other. The driven roller 502 is connected to the lifting component 503. After the driven roller 502 is driven to rise and fall by the lifting component 503, the spacing distance between the roller surfaces of the driven roller 502 and the active roller 501 is adjusted, so as to clamp the workpiece 900 during feeding and withdrawing. The clamped workpiece 900 completes feeding or withdrawing when the active roller 501 rotates.

[0049] In some preferred embodiments, Figure 6 , Figure 7 As shown, the lifting assembly 503 uses cylinders arranged in groups at opposite ends of the driven roller 502. The cylinders are arranged vertically and fixed on the frame by their shells. The telescopic rods of the cylinders extend downward and are connected to the driven roller 502.

[0050] It should be noted that the feed and retract assembly of the utility model serves as an auxiliary functional structure for manual loading and unloading. Its function is to support and propel the workpiece during loading and unloading. Manual operation only controls the feed and retract direction of the workpiece during the loading and unloading process to avoid directional deviation of the workpiece when it is pushed, which may lead to feed and retract failure.

[0051] like Figure 7As shown, the feed and retract assembly 500 includes a baffle 505, and a through hole 5051 (a waist-shaped hole arranged horizontally) is provided on the baffle 505 to facilitate batch feeding of multiple workpieces. The width (i.e., the horizontal length) of the through hole 5051 covers all processing stations. For example, in the illustrated structure, the utility model arranges 6 stations on the frame, and electrochemical polishing processing of 6 workpieces can be performed simultaneously in the corresponding batch operation. At this time, the width (horizontal length) of the through hole 5051 on the baffle 505 corresponds to these 6 stations. The setting height of the through hole 5051 is between the spacing distance between the active roller 501 and the driven roller 502, so that the workpiece can smoothly pass through the spacing gap between the active roller 501 and the driven roller 502 when loading and unloading.

[0052] In order to realize the second water tank corresponding to multiple stations, the utility model can be arranged according to the following structure: Figure 2 , Figure 5 As shown, in some embodiments, a distribution pipe 601 is provided in the second water tank 202, and the distribution pipe 601 has a liquid inlet and at least two liquid outlets. The liquid inlet is connected to the first delivery pump 401, and the liquid outlet faces the direction of the first water tank 201, so that the workpiece 900 extends into the second water tank 202 and then into the liquid outlet of the distribution pipe. After the first delivery pump 401 pumps the liquid medicine from the first water tank 201 to the distribution pipe 601, it flows through the inner cavity of the tube body of the workpiece 900, and then flows out and gathers in the first water tank 201.

[0053] In the illustrated structure, the first delivery pump 401 is connected to the second water tank 202 and the first water tank 201 via a liquid supply pipe 602 .

[0054] In some preferred embodiments, the first delivery pump 401 is a diaphragm pump.

[0055] It should be noted that in the present invention, the high limit of the liquid level refers to the position where the end of the workpiece extends into the water tank (that is, the highest liquid level in the water tank can only reach this position, and then flow out from the opening where the workpiece extends). For example, the position where one end of the workpiece extends into the second water tank is the side plate of the second water tank facing the first water tank, and the side plate is provided with an opening for the end of the workpiece to extend into. The lowest position of the edge of the opening is the horizontal height position of the high limit of the second water tank; correspondingly, the position where the other end of the workpiece extends into the first water tank is the side plate of the first water tank facing the second water tank, and the side plate is provided with an opening for the end of the workpiece to extend into. The lowest position of the edge of the opening is the horizontal height position of the high limit of the first water tank. Under this structural setting, after the workpiece is placed, it tilts from the first water tank to the second water tank. The first delivery pump delivers the medicine liquid through the inner cavity of the pipe body of the workpiece from low to high from the second water tank side to the first water tank side. After the medicine liquid flows out of the workpiece, it is collected in the first water tank. Part of the medicine liquid overflows from the pipe interface of the workpiece and is collected in the second water tank.

[0056] In order to adapt to workpieces of different lengths, the utility model can be arranged according to the following structure: Figure 1 , Figure 2 As shown, in some embodiments, at least two clamping assemblies 300 are provided, and at least two clamping assemblies 300 are spaced apart and arranged between the first water tank 201 and the second water tank 202 .

[0057] After the above example is set, the first water tank 201, at least two clamping assemblies 300, and the second water tank 202 are spaced apart along the length direction of the frame 100, and the two water tanks are located at both ends of the frame 100. At least two clamping assemblies 300 can be evenly spaced apart, that is, the spacing distance can be set equal.

[0058] The utility model can be provided with a clamping assembly according to the following structure: Figure 3 , Figure 4 As shown, in some embodiments, the clamping assembly 300 includes a support plate 301, a clamping block 302, and a cylinder 303.

[0059] The cylinder 303 is connected to the clamping block 302;

[0060] The support plate 301 is fixed on the frame 100, and a clamping position 30101 corresponding to the workpiece 900 is provided on the support plate 301, and the clamping position 30101 is a concave structure concave from the upper end surface of the support plate 301;

[0061] The clamping block 302 is located on one side of the support plate 301 (the arrangement direction can be regarded as along the length direction of the frame / the workpiece after placement). The clamping block 302 is provided with a clamping position corresponding to the clamping position 30101. The clamping position is a concave structure that is recessed along the extension direction of the cylinder 303, so that after the workpiece 900 is clamped into the clamping position 30101 on the support plate, the clamping block 302 is pulled by the cylinder 303, so that the clamping block 302 clamps the workpiece 900, and then the workpiece 900 is clamped into the clamping position. When the cylinder 303 continues to work, it can ensure that the clamping force on the workpiece 900 meets the processing requirements.

[0062] When the utility model realizes a batch operation structure, any clamping assembly 300 can be set to have multiple clamping stations, and any clamping station includes a clamping position 30101 on the support plate 301 and a corresponding clamping position on the clamping block 302 belonging to the same clamping assembly as the support plate 301.

[0063] It should be noted that the clamping assembly (through its clamping block and support plate) directly contacts the workpiece, and the workpiece is connected to the positive pole of the power supply as an anode during the electrochemical polishing operation, so the clamping assembly is connected to the positive pole of the power supply.

[0064] Correspondingly, the negative electrode of the power supply is arranged in the medicine solution of the first water tank through a cathode copper plate.

[0065] like Figure 3 As shown, two adjacent clamping assemblies 300 are connected to the positive electrode of the power source 1001 through their respective matching metal conductive sheets 800 .

[0066] In order to realize the reciprocating movement of the clamping block, the utility model can be arranged according to the following structure: Figure 4 As shown, in some embodiments, the clamping assembly 300 includes a base plate 304, a slider 305, a slide rail 306, and a clamping block base 307, and the clamping block 302 is fixed on the clamping block base 307.

[0067] The slider 305 is fixed to the bottom surface of the clamping block base 307 . The slider 305 is inserted into the slide rail 306 through its recessed structure. The slide rail 306 is fixed to the bottom plate 304 . The telescopic rod of the cylinder 303 is connected to the clamping block base 307 .

[0068] When the utility model is working, the cylinder 303 drives the clamping block base 307, which drives the clamping block 302 to move, and clamps the workpiece that has been placed in the clamping position 30101 of the support plate 301.

[0069] In order to realize the reflux of the liquid medicine, the utility model can be arranged as follows: Figure 5 , Figure 6 As shown, in some embodiments, the second water tank 202 is connected to the first water tank 201 via a second delivery pump 402 .

[0070] In the illustrated structure, the second delivery pump 402 is connected to the second water tank 202 and the first water tank 201 via a return pipe 603 .

[0071] In some preferred embodiments, the level of the interface of the second delivery pump 402 connected to the first water tank 201 is higher than the level of the interface of the second delivery pump 402 connected to the second water tank 202 .

[0072] In some preferred embodiments, the interface of the second delivery pump 402 connected to the second water tank 202 is located at the bottom of the second water tank 202 .

[0073] In some preferred embodiments, the second delivery pump 402 is a magnetic pump.

[0074] In order to ensure that the temperature of the liquid medicine meets the processing conditions, the utility model can be arranged as follows: Figure 6 As shown, a heating assembly 700 is provided in the first water tank 201 to control the temperature of the liquid medicine.

[0075] In some preferred embodiments, the heating component 700 uses a polyfluoroethylene heating tube, which is arranged to be immersed below the liquid level of the medicine in the first water tank 201.

[0076] It should be noted that the workpieces processed by the utility model are straight and long stainless steel pipes, especially stainless steel pipes with thin diameters that are not easy to load and unload by one person, and the pipe diameter range is between DN6 and DN25. Such pipes are easy to bend and deform when one person loads and unloads them, so during the operation, when traditional equipment is used for processing, loading and unloading takes a lot of time.

[0077] In summary, the utility model connects the openings at both ends of the tube body of the workpiece through the first water tank and the second water tank, so that the medicine liquid can circulate under the pumping of the first delivery pump, and the loading and unloading of materials can be realized under the operation of a single person through the feeding and retracting components, thereby reducing the burden of manual loading and unloading.

[0078] 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. A stainless steel capillary electrochemical polishing device, comprising a frame, characterized in that: The frame is provided with a first water tank, a clamping assembly, and a second water tank, the clamping assembly is located between the first water tank and the second water tank, and the first water tank and the second water tank are respectively located at two ends of the frame; The facing side panels of the first water tank and the second water tank are both provided with openings for facilitating the insertion of the end of the workpiece; The clamping assembly has a workpiece clamping position for facilitating clamping of the workpiece; The second water tank is connected to the first water tank via a first delivery pump, and the liquid level high limit of the first water tank is higher than the liquid level high limit of the second water tank; A material feeding and withdrawing assembly is provided on one side of the first water tank.

2. The electrochemical polishing equipment for stainless steel tubes according to claim 1, characterized in that: The feeding and withdrawing assembly includes a driving roller, a driven roller, a lifting assembly, and a motor. The motor is connected to the driving roller and drives it to rotate. The active roller and the driven roller are arranged in parallel and spaced apart from each other; The driven roller is connected to the lifting assembly.

3. The electrochemical polishing equipment for stainless steel tubes according to claim 1, characterized in that: A distribution pipe is arranged in the second water tank, and the distribution pipe has a liquid inlet and at least two liquid outlets. The liquid inlet is connected to the first delivery pump, and the liquid outlet faces the direction of the first water tank.

4. The electrochemical polishing equipment for stainless steel tubes according to claim 1, characterized in that: There are at least two clamping assemblies, and at least two of the clamping assemblies are spaced apart between the first water tank and the second water tank.

5. The electrochemical polishing equipment for stainless steel tubes according to claim 1, characterized in that: The clamping assembly includes a support plate, a clamping block, and a cylinder. The cylinder is connected to the clamping block; The support plate is fixed on the frame, and a clamping position corresponding to the workpiece is provided on the support plate, and the clamping position is a concave structure concave from the upper end surface of the support plate; The clamping block is located at one side of the supporting plate, and a clamping position corresponding to the clamping position is provided on the clamping block, and the clamping position is a concave structure concave along the telescopic direction of the cylinder.

6. The electrochemical polishing equipment for stainless steel tubes according to claim 5, characterized in that: The clamping assembly includes a base plate, a slider, a slide rail, and a clamping block base. The clamping block is fixed on the clamping block base. The slider is fixed to the bottom surface of the clamping block base, and the slider is inserted into the slide rail through its recessed structure. The slide rail is fixed to the bottom plate. The telescopic rod of the cylinder is connected to the clamping block base.

7. The electrochemical polishing equipment for stainless steel tubes according to claim 1, characterized in that: The second water tank is connected to the first water tank via a second delivery pump.

8. The electrochemical polishing equipment for stainless steel tubes according to claim 7, characterized in that: The second delivery pump is a magnetic pump.

9. The electrochemical polishing equipment for stainless steel tubes according to any one of claims 1 to 8, characterized in that: The first delivery pump is a diaphragm pump.

10. The electrochemical polishing equipment for stainless steel tubes according to any one of claims 1 to 8, characterized in that: A heating component is arranged in the first water tank.

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