CN116065225B - Electrolytic polishing device for inner wall of special-shaped micro-fine tube - Google Patents
Electrolytic polishing device for inner wall of special-shaped micro-fine tube Download PDFInfo
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- CN116065225B CN116065225B CN202310330372.XA CN202310330372A CN116065225B CN 116065225 B CN116065225 B CN 116065225B CN 202310330372 A CN202310330372 A CN 202310330372A CN 116065225 B CN116065225 B CN 116065225B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of part surface polishing treatment, and relates to an electrolytic polishing device for the inner wall of a special-shaped micro-pipe, which comprises an electrolyte tank, a waste liquid tank and a reaction box body, wherein the special-shaped micro-pipe to be processed is positioned in the reaction box body, a nylon rope is arranged in the special-shaped micro-pipe to be processed in a penetrating way, two ends of the nylon rope are connected to form a closed loop, and the nylon rope is matched with a plurality of redirection fixed pulleys and a driving device; nylon ropes positioned in the special-shaped microtubes to be processed sequentially pass through the hard sponge section I, the round copper core substrate, the round polyether-ether-ketone block I, the round polyether-ether-ketone block II and the hard sponge section II; the special-shaped micro tube to be processed is connected to the positive electrode of the pulse alternating current power supply through a conductive clamp, an electrode wire is arranged in the hard sponge section I in a penetrating mode, and the electrode wire is connected to the negative electrode of the pulse alternating current power supply; the electrolyte tank and the waste liquid tank are respectively connected to the special-shaped microtube to be processed through a first synchronous peristaltic pump and a second peristaltic pump. The method is convenient to operate, high in reliability and easy to realize electrolytic polishing treatment of the inner holes of the special-shaped micro tubes.
Description
Technical Field
The invention relates to the technical field of part surface polishing treatment, in particular to an electrolytic polishing device for the inner wall of a special-shaped micro-pipe, which is applied to polishing treatment of the inner surface of the special-shaped micro-pipe with a complex structure.
Background
Nowadays, the requirements of the fields of machinery, medical appliances and the like on the surface polishing treatment of parts are higher and higher, and particularly, the requirements of the parts with complicated structures, such as special-shaped micro tubules and the like, are higher and higher. The rust spots, burrs and greasy dirt can be removed by polishing the surface of the complex part, the brightness and corrosion resistance of the surface of the part can be effectively improved, the service performance is improved, and the service life is prolonged.
The conventional polishing process is mechanical polishing, but the mechanical polishing is generally only suitable for the surface of a flat workpiece, and for some fine parts with complex structures, the surface of the fine parts has micro uneven grinding marks, and the fine parts are difficult to remove by adopting mechanical polishing. Particularly, the polishing treatment cannot be realized for the inner holes of the special-shaped micro-tubes with high individuation requirements.
The electrolytic polishing technology is one of the important technologies for surface treatment, and utilizes the principle of electrochemical reaction to dissolve microscopic bumps on the surface of anode metal in specific electrolyte and under proper current density, so that a precision machining method for polishing a workpiece is provided. However, electrolytic polishing has not been applied to surface treatment of the inner wall of a profiled microtube at present, and has a certain research value in this respect.
Disclosure of Invention
The invention provides an electrolytic polishing device for the inner wall of a special-shaped micro tubule, which aims to overcome the technical defect that the polishing treatment of a fine part with a complex structure cannot be carried out by the existing mechanical polishing.
The invention discloses an electrolytic polishing device for the inner wall of a special-shaped micro-pipe, which comprises an electrolyte tank, a waste liquid tank and a reaction box body, wherein a first fixture and a second fixture which are respectively used for supporting two ends of the special-shaped micro-pipe to be processed are fixedly connected to the bottom wall of the reaction box body; the hard sponge section I and the hard sponge section II are arranged in the special-shaped micro-pipe to be processed at intervals, the side walls of the hard sponge section I and the hard sponge section II are coated with insulating layers, the hard sponge section I and the hard sponge section II provided with the insulating layers are in transition fit with the inner wall of the special-shaped micro-pipe to be processed, the inner end of the hard sponge section I is sequentially adhered with a round copper core substrate and a round polyether-ether-ketone block I from outside to inside, the side wall of the round copper core substrate is in clearance fit with the inner wall of the special-shaped micro-pipe to be processed, the diameter of the round polyether-ether-ketone block I is smaller than that of the round copper core substrate, the inner end of the hard sponge section II is adhered with the round polyether-ether-ketone block II, the side wall of the circular polyether-ether-ketone block II is in clearance fit with the inner wall of the special-shaped micro-pipe to be processed, a nylon rope sequentially passes through the first hard sponge section, the circular copper core substrate, the circular polyether-ether-ketone block I, the circular polyether-ether-ketone block II and the hard sponge section II, the nylon rope is fixedly connected with the outer ends of the first hard sponge section and the hard sponge section II respectively, the circular polyether-ether-ketone block I and the circular polyether-ether-ketone block II are clamped on the nylon rope, and a plurality of polyether-ether-ketone balls which are unevenly arranged at intervals are also penetrated and clamped on the nylon rope between the circular polyether-ether-ketone block I and the circular polyether-ether-ketone block II; the outer wall of the special-shaped micro-pipe to be processed is connected to the positive electrode of the pulse alternating current power supply through a conductive clamp and a wire, an electrode wire is arranged in the hard sponge section I in a penetrating mode, the inner end of the electrode wire extends inwards into the round copper core substrate, and the outer end of the electrode wire penetrates out of the end portion of the special-shaped micro-pipe to be processed and is connected to the negative electrode of the pulse alternating current power supply; the bottom of the electrolyte tank is provided with a constant temperature heating pipe, electrolyte is contained in the tank, the electrolyte tank is connected to a liquid inlet of a first synchronous peristaltic pump through a first liquid conveying pipeline, a liquid outlet of the first synchronous peristaltic pump is connected with a first micro pipeline, and the free end of the first micro pipeline penetrates through the first hard sponge section and then stretches into a special-shaped micro pipe to be processed between the first round polyether-ether-ketone block and the second round polyether-ether-ketone block; the waste liquid tank is connected to a liquid outlet of a second synchronous peristaltic pump through a second liquid conveying pipeline, a liquid inlet of the second synchronous peristaltic pump is connected with a second micro pipeline, and the free end of the second micro pipeline penetrates through the second hard sponge section and then stretches into the special-shaped micro tubule to be processed between the second round polyether-ether-ketone block and the first round polyether-ether-ketone block; the inner side of the hard sponge section I is also provided with a displacement sensor connected with a controller.
The first fixture and the second fixture are identical in structure, the first fixture and the second fixture are structures which are easy to be understood by a person skilled in the art, and the special-shaped fine tube to be processed is fixed into the reaction box body through the first fixture and the second fixture. Nylon ropes are arranged in the special-shaped microtubes to be processed in a penetrating mode, two ends of the nylon ropes are connected to form a closed ferrule, the nylon ropes forming the closed ferrule are supported in the reaction box body through a plurality of direction-changing fixed pulleys, the nylon ropes and the driving device form a circulating transmission system, and the driving device can be used for switching forward rotation and reverse rotation and controlling starting or stopping of the driving device under the control of the controller. The hard sponge section I and the hard sponge section II are both positioned in the special-shaped microtube to be processed and can move along with the nylon rope in the special-shaped microtube to be processed. The round polyether-ether-ketone block I and the round polyether-ether-ketone block II can respectively compress the hard sponge at the corresponding positions, and the round polyether-ether-ketone block I and the round polyether-ether-ketone block II are high polymer materials, have high density and high mass and can play a role in counterweight. The diameter of the circular polyether-ether-ketone block I is smaller than that of the circular copper core substrate, and the end face of a part of the circular copper core substrate can be in direct contact with electrolyte to play a role in conducting electricity. The polyether-ether-ketone ball plays a role in supporting the nylon rope, the polyether-ether-ketone ball is made of a high polymer material, and the upper through holes of the polyether-ether-ketone ball are slightly smaller than the diameter of the nylon rope, so that when the polyether-ether-ketone ball is arranged on the nylon rope in a penetrating way, the polyether-ether-ketone ball has an extrusion effect on the nylon rope, can be tightly fixed on the nylon rope, does not relatively displace between the polyether-ether-ketone ball and the nylon rope, and meanwhile, a plurality of micro through holes are densely distributed on the polyether-ether-ketone ball, so that electrolyte can smoothly circulate. The first hard sponge section and the second hard sponge section are in transition fit with the inner wall of the special-shaped micro-pipe to be processed, namely the outer diameters of the first hard sponge section and the second hard sponge section are slightly larger than the inner diameter of the special-shaped micro-pipe to be processed, so that the first hard sponge section and the second hard sponge section are quite plugs, an intercepting effect is achieved on electrolyte, and the electrolyte is sucked into the special-shaped micro-pipe to be processed between the first hard sponge section and the second hard sponge section from the electrolyte tank through the first synchronous peristaltic pump. When the device is particularly used, the positive electrode of the pulse alternating current power supply is communicated with the special-shaped micro tube to be processed through the conductive clamp, and the negative electrode of the pulse alternating current power supply is communicated with the round copper core substrate on the inner side of the hard sponge section I through the electrode lead, so that a movable electrolytic area is formed between the hard sponge section I and the hard sponge section II. The electrolytic area is slowly moved to a position requiring electrolytic polishing through the driving device, the position of the electrolytic area can be monitored by the displacement sensor, signals are transmitted to the controller by the displacement sensor, so that the controller can send corresponding instructions to control the driving device to operate, and in the electrolytic process, electrolyte in the electrolytic area is pumped to the waste liquid tank through the second synchronous peristaltic pump, so that the electrolytic reaction speed is kept constant. After the electrolytic polishing is finished, the first peristaltic pump is closed, the second peristaltic pump is kept to be always started, after electrolyte in the special-shaped micro tubule is completely pumped to the waste liquid tank, the hard sponge section I to the hard sponge section II are pulled out of the special-shaped micro tubule through the nylon rope, and after the special-shaped micro tubule is taken down, the special-shaped micro tubule is fully cleaned, and the polished special-shaped micro tubule can be obtained.
Preferably, the two ends of the special-shaped micro-tubule to be processed are further provided with a horn-shaped buffer sleeve, the end part of the special-shaped micro-tubule to be processed is inserted from a small opening of the horn-shaped buffer sleeve, a large opening of the horn-shaped buffer sleeve is arranged outwards, the end part of the special-shaped micro-tubule to be processed is positioned in the horn-shaped buffer sleeve, the horn-shaped buffer sleeve is fixedly connected with the end part of the special-shaped micro-tubule to be processed through a plurality of jackscrews, and the small opening end of the horn-shaped buffer sleeve is in limit fit with the side wall of the first fixture or the second fixture. The inner wall of loudspeaker form buffer sleeve is from the little mouth to the gentle transition of big mouth, and the tip of waiting to process special-shaped tubule is arranged in loudspeaker form buffer sleeve, so loudspeaker form buffer sleeve can prevent that the tip of special-shaped tubule from causing wearing and tearing to nylon rope, first micro-fine pipeline, second micro-fine pipeline and displacement sensor wire. And because the small opening end of the horn-shaped buffer sleeve is in limit fit with the side wall of the first fixture or the second fixture, the horn-shaped buffer sleeve can be used as a second fixing safety of the special-shaped micro-tubule to be processed, and the special-shaped micro-tubule to be processed is further prevented from moving to the nylon rope.
Preferably, the driving device comprises a servo motor, a speed reducer, a driving synchronous pulley and a driven synchronous pulley, wherein the servo motor is fixedly connected with the speed reducer, the speed reducer is supported on the bottom wall of the reaction box body through a bracket, the driving synchronous pulley is connected with an output shaft of the speed reducer, the driving synchronous pulley is connected with the driven synchronous pulley through a synchronous belt, and the driven synchronous pulley is connected with one of the redirecting fixed pulleys so as to drive the redirecting fixed pulleys to synchronously rotate.
Preferably, the reaction box comprises a box frame, the bottom of the box frame is fixedly connected with a metal bottom plate, the side part and the top of the box frame are fixedly connected with organic glass partition plates, wherein the organic glass partition plates at the front side and the rear side are used as openable doors, and a plurality of heat dissipation holes are formed in the organic glass partition plates; the number of the redirection fixed pulleys is four, and the redirection fixed pulleys are fixedly connected to the organic glass partition board through the pulley frame.
Preferably, the liquid inlet of the first synchronous peristaltic pump is provided with a precision filter, and the liquid outlet of the second synchronous peristaltic pump is provided with a flow valve; the liquid inlet of the second synchronous peristaltic pump is provided with a flow valve, and the liquid outlet of the second synchronous peristaltic pump is provided with a precision filter.
Preferably, the outer end of the first hard sponge section is provided with a T-shaped thread sleeve, a rod body of the T-shaped thread sleeve is inserted into the first hard sponge section, a plate body at the end part of the T-shaped thread sleeve is adhered to the outer end surface of the first hard sponge section and is fixedly connected with the first hard sponge section through a fastening screw, a through hole provided with an internal thread is formed in the axis of the T-shaped thread sleeve, a tubular thread sleeve is fixedly connected to a nylon rope at a corresponding position through a jackscrew, an external thread is arranged on the tubular thread sleeve, and the first hard sponge section is fixedly connected with the nylon rope through the T-shaped thread sleeve and the tubular thread sleeve; the connecting structure of the hard sponge section II and the nylon rope is consistent with the connecting structure of the hard sponge section I and the nylon rope.
Preferably, the two ends of the nylon rope are respectively fixedly connected with an end thread sleeve which can be in threaded connection through jackscrews, the nylon rope adjacent to the two end thread sleeves is also penetrated with a polyether-ether-ketone ball, and the polyether-ether-ketone ball is clamped on the nylon rope.
Preferably, the device further comprises a horizontal working supporting table with adjustable height, a plurality of supporting feet with adjustable height are arranged at the bottom of the horizontal working supporting table, the electrolyte tank, the waste liquid tank, the first synchronous peristaltic pump, the second synchronous peristaltic pump and the reaction box body are all arranged on the horizontal working supporting table, a plurality of supporting feet with adjustable height are arranged at the bottom of the reaction box body, and a spring damping table is further arranged between the electrolyte tank and the waste liquid tank and the horizontal working supporting table respectively.
Preferably, notch grooves are respectively arranged at four corners of the bottom of the spring damping table, damping springs with axes in the vertical direction are fixedly connected in the notch grooves, the bottom wall of the spring damping table and the four damping springs are in direct contact with the top surface of the horizontal working supporting table, and the top of the spring damping table is provided with a mounting groove for embedding an electrolyte tank or a waste liquid tank.
Preferably, the side wall of the round copper core substrate is coated with an insulating layer; two parallel long round holes for installing the first fixture and the second fixture are formed in the metal bottom plate.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the first point is that the device has simple structure, convenient operation and strong reliability, and is easy to realize the electrolytic polishing treatment of the inner hole of the special-shaped micro tube;
the second point and the polyether-ether-ketone balls are distributed in the special-shaped microcapillary at uneven intervals, so that the problem of poor quality of the electrolytic polishing layer caused by unstable current in the electrolytic process can be effectively solved;
the third point and the synchronous peristaltic pump can timely supply electrolyte to the electrolytic area, so that the electrolyte is updated, and meanwhile, the waste liquid and the electrolytic product are discharged, and the stable and continuous electroplating operation is ensured;
fourth, there is no special limitation on the material of the special-shaped microtube to be processed, and a proper electrolyte can be prepared according to the specific material;
and the fifth point and the nylon rope control the electrolytic area to move in the inner hole of the special-shaped micro-pipe under the drive of the motor, so that the area needing electrolytic polishing can be accurately controlled.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an electropolishing apparatus for the inner wall of a shaped microtube according to the present invention;
FIG. 2 is an isometric view (with part of the structure hidden) of an electropolishing apparatus for the inner wall of a shaped capillary according to the present invention;
FIG. 3 is a diagram of a circulation transmission system formed by structures such as special-shaped microtubes to be processed and nylon ropes;
FIG. 4 is a schematic distribution diagram of polyether-ether-ketone spheres in the special-shaped microtube to be processed;
FIG. 5 is a schematic three-dimensional view of a profiled micro-pipe to be processed and its inner PEEK ball distribution and conductive jigs according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of the driving device according to the present invention;
FIG. 7 is a schematic diagram of the structure of the first synchronous peristaltic pump or the second synchronous peristaltic pump according to the present invention;
FIG. 8 is an enlarged cross-sectional view of a hard sponge segment and its assembled components in accordance with the present invention;
fig. 9 is a cross-sectional view of the nylon rope joint according to the present invention.
In the figure: 1. an electrolyte tank; 2. a waste liquid tank; 3. a reaction box; 4. the special-shaped micro tubule is to be processed; 5. a first tool clamp; 6. a second tool clamp; 7. nylon ropes; 8. a direction-changing fixed pulley; 9. a controller; 10. a hard sponge section I; 11. a hard sponge section II; 12. an insulating layer; 13. a circular copper core substrate; 14. round polyether-ether-ketone block I; 15. round polyether-ether-ketone block II; 16. polyether-ether-ketone balls; 17. a conductive clamp; 18. a pulse alternating current power supply anode; 19. an electrode lead; 20. a pulse alternating current power supply cathode; 21. heating pipe at constant temperature; 22. a first liquid delivery conduit; 23. a first synchronized peristaltic pump; 24. a first micro-pipe; 25. a second liquid delivery conduit; 26. a second synchronous peristaltic pump; 27. a second fine pipe; 28. a displacement sensor; 29. a horn-shaped buffer sleeve; 30. a servo motor; 31. a speed reducer; 32. a driving synchronous pulley; 33. a driven synchronous pulley; 34. a bracket; 35. a box frame; 36. a metal base plate; 37. an organic glass separator; 38. a heat radiation hole; 39. a pulley frame; 40. a precision filter; 41. a flow valve; 42. t-shaped thread sleeve; 43. a fastening screw; 44. a tubular threaded sleeve; 45. an end thread sleeve; 46. a horizontal work support table; 47. a support leg; 48. a spring damping table; 49. a notch groove; 50. a damping spring; 51. a slotted hole; 52. a synchronous belt.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be made. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
In the description, it should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms described above will be understood by those of ordinary skill in the art as the case may be.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the invention.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In one embodiment, as shown in fig. 1, an electrolytic polishing device for the inner wall of a special-shaped micro-pipe is disclosed, and comprises an electrolytic tank 1, a waste liquid tank 2 and a reaction box 3, wherein a first fixture 5 and a second fixture 6 which are respectively used for supporting two ends of the special-shaped micro-pipe 4 to be processed are fixedly connected to the bottom wall of the reaction box 3, a nylon rope 7 is arranged in the special-shaped micro-pipe 4 to be processed in a penetrating manner, two ends of the nylon rope 7 are detachably connected, the nylon rope 7 integrally forms a closed loop, a plurality of redirecting fixed pulleys 8 matched with the nylon rope 7 are arranged in the reaction box 3, a driving device for enabling the nylon rope 7 to be driven positively or reversely is also matched with the driving device, and the driving device is connected with a controller 9; a first hard sponge section 10 and a second hard sponge section 11 are arranged in the special-shaped micro-pipe 4 to be processed at intervals, an insulating layer 12 is coated on the side walls of the first hard sponge section 10 and the second hard sponge section 11, the first hard sponge section 10 and the second hard sponge section 11 provided with the insulating layer 12 are in transition fit with the inner wall of the special-shaped micro-pipe 4 to be processed, a circular copper core substrate 13 and a circular polyether-ether-ketone block 14 are adhered to the inner end of the first hard sponge section 10 in sequence from outside to inside, the side wall of the circular copper core substrate 13 is in clearance fit with the inner wall of the special-shaped micro-pipe 4 to be processed, the diameter of the circular polyether-ether-ketone block 14 is smaller than the diameter of the circular copper core substrate 13, a circular polyether-ether-ketone block 15 is adhered to the inner end of the second hard sponge section 11, a nylon rope 7 sequentially penetrates through the first hard sponge section 10, the circular copper core substrate 13, the circular polyether-ether-ketone block 14, the circular polyether-ether-ketone block 15 and the second hard sponge section 11, nylon rope 7 is respectively connected with the first hard sponge section 10, the second polyether-ether-ketone block 11 and the circular polyether-ether-ketone block 14 and the nylon rope 7 are fixedly clamped between the circular polyether-ether-ketone block 15 and the circular polyether-ether-ketone block 14, and the nylon-ether-ketone block 7 is fixedly clamped between the circular polyether-ether-ketone block 14 and the circular polyether-ether-ketone block 7; the outer wall of the special-shaped micro-pipe 4 to be processed is connected to a pulse alternating current power supply anode 18 through a conductive clamp 17 and a wire, an electrode wire 19 is arranged in the hard sponge section I10 in a penetrating way, the inner end of the electrode wire 19 extends inwards into the round copper core substrate 13, and the outer end of the electrode wire 19 penetrates out of the end part of the special-shaped micro-pipe 4 to be processed and is connected to a pulse alternating current power supply cathode 20; the bottom of the electrolyte tank 1 is provided with a constant temperature heating pipe 21, electrolyte is contained in the tank, the electrolyte tank 1 is connected to a liquid inlet of a first synchronous peristaltic pump 23 through a first liquid conveying pipeline 22, a liquid outlet of the first synchronous peristaltic pump 23 is connected with a first micro pipeline 24, and a free end of the first micro pipeline 24 penetrates through the hard sponge section I10 and then stretches into a special-shaped micro pipe 4 to be processed between the round polyether-ether-ketone block I14 and the round polyether-ether-ketone block II 15; the waste liquid tank 2 is connected to a liquid outlet of a second synchronous peristaltic pump 26 through a second liquid conveying pipeline 25, a liquid inlet of the second synchronous peristaltic pump 26 is connected with a second micro pipeline 27, and a free end of the second micro pipeline 27 penetrates through the second hard sponge section 11 and then stretches into the special-shaped micro tubule 4 to be processed between the second round polyether-ether-ketone block 15 and the first round polyether-ether-ketone block 14; the inner side of the hard sponge section one 10 is also provided with a displacement sensor 28 connected with the controller 9.
The first fixture 5 and the second fixture 6 are consistent in structure, the first fixture 5 is used as an example, the second fixture 5 is used as a structure which is easy to be understood by a person skilled in the art, the second fixture is used as a specific embodiment, the second fixture comprises a support fork base, the support fork base is provided with two connecting feet for fixedly connecting the bottom wall of the reaction box body 3, the top of the support fork base is slidably matched with two clamping blocks, the two clamping blocks are slidably matched with the special-shaped tubules 4 to be processed in different thicknesses for convenience, the end parts of the special-shaped tubules 4 to be processed are clamped between the two clamping blocks, and the special-shaped tubules 4 to be processed are fixed into the reaction box body 3 through the first fixture 5 and the second fixture 6.
The nylon rope 7 is arranged in the special-shaped micro-pipe 4 to be processed in a penetrating mode, two ends of the nylon rope 7 are connected to form a closed loop through a detachable structure, the nylon rope 7 forming the closed loop is supported in the reaction box body 3 through a plurality of direction-changing fixed pulleys 8, the nylon rope 7 and a driving device form a circulating transmission system, and the driving device can be switched in forward rotation and reverse rotation and can be controlled to start or stop under the control of the controller 9.
Wherein, the first hard sponge section 10 and the second hard sponge section 11 are both positioned in the special-shaped micro-pipe 4 to be processed and can move along with the nylon rope 7 in the special-shaped micro-pipe 4 to be processed. The round polyether-ether-ketone block I14 and the round polyether-ether-ketone block II 15 can respectively compress hard sponge at corresponding positions, and the round polyether-ether-ketone block I14 and the round polyether-ether-ketone block II 15 are made of high polymer materials, have high density and high mass, and can play a role in counterweight. The diameter of the circular polyether-ether-ketone block I14 is smaller than that of the circular copper core substrate 13, and after the end face of the circular polyether-ether-ketone block I14 is tightly attached to the circular copper core substrate 13, a part of the end face of the circular copper core substrate 13 can be in direct contact with electrolyte, so that a conductive effect is achieved. The polyether-ether-ketone ball 16 plays a role in supporting the nylon rope 7, the polyether-ether-ketone ball 16 is made of a high polymer material, and the through hole is slightly smaller than the diameter of the nylon rope 7, so that when the polyether-ether-ketone ball 16 is arranged on the nylon rope 7 in a penetrating way, the nylon rope 7 is extruded, the polyether-ether-ketone ball 16 can be tightly fixed on the nylon rope 7, and no relative displacement occurs between the polyether-ether-ketone ball 16 and the nylon rope 7. The ether ketone balls are distributed in the special-shaped microcapillary at uneven intervals, as shown in fig. 4, d1, d2, d3 and d4 are unequal in length, so that the problem of poor quality of the electrolytic polishing layer caused by unstable current in the electrolytic process can be effectively solved. The first hard sponge section 10 and the second hard sponge section 11 provided with the insulating layer 12 are in transition fit with the inner wall of the special-shaped micro-pipe 4 to be processed, namely, the outer diameters of the first hard sponge section 10 and the second hard sponge section 11 are slightly larger than the inner diameter of the special-shaped micro-pipe 4 to be processed, so that the first hard sponge section 10 and the second hard sponge section 11 are quite plugs, an intercepting effect is achieved on electrolyte, and the electrolyte is sucked into the special-shaped micro-pipe 4 to be processed between the first hard sponge section 10 and the second hard sponge section 11 from an electrolyte tank through the first synchronous peristaltic pump 23. Wherein the inside of the electrode wire 19 is high-quality copper wire, and the outside of the electrode wire 19 is coated with an insulating rubber layer.
When the method is specifically used, a proper electrolyte is prepared according to the attribute of the material of the special-shaped micro-tubule 4 to be processed, and is placed in the electrolyte tank 1, and in specific implementation, the electrolyte can be a mixture of phosphoric acid and hydrochloric acid, and the inner diameter of the special-shaped micro-tubule 4 to be processed is generally phi 1.2-3.5mm; the pulse alternating current power supply anode 18 is communicated with the special-shaped micro-tubule 4 to be processed through the conductive clamp 17, and the pulse alternating current power supply cathode 20 is communicated with the circular copper core substrate 13 at the inner side of the hard sponge section I10 through the electrode wire 19, so that a movable electrolysis area is formed between the hard sponge section I10 and the hard sponge section II 11. The electrolytic area is slowly moved to a position requiring electrolytic polishing by the driving device, the position of the electrolytic area can be monitored by the displacement sensor 28, a signal is transmitted to the controller 9 by the displacement sensor 28, so that the controller 9 can send corresponding instructions to control the driving device to operate, and in the electrolytic process, the electrolyte in the electrolytic area is pumped to the waste liquid tank 2 by the second synchronous peristaltic pump 26, so that the electrolytic reaction speed is kept constant. After the electrolytic polishing is finished, the first synchronous peristaltic pump 23 is closed, the second synchronous peristaltic pump 26 is kept on all the time, after the electrolyte in the special-shaped micro tubule is completely pumped to the waste liquid tank 2, the hard sponge section I10 to the hard sponge section II 11 are pulled out of the special-shaped micro tubule through the nylon rope 7, and after the special-shaped micro tubule is taken down, the special-shaped micro tubule is subjected to full cleaning treatment, so that the polished special-shaped micro tubule can be obtained.
On the basis of the above embodiment, the two ends of the special-shaped micro-tube 4 to be processed are further provided with the horn-shaped buffer sleeves 29, the end parts of the special-shaped micro-tube 4 to be processed are inserted from the small openings of the horn-shaped buffer sleeves 29, the large openings of the horn-shaped buffer sleeves 29 are arranged outwards, the end parts of the special-shaped micro-tube 4 to be processed are positioned in the horn-shaped buffer sleeves 29, the horn-shaped buffer sleeves 29 are fixedly connected with the end parts of the special-shaped micro-tube 4 to be processed through a plurality of jackscrews, and the small opening ends of the horn-shaped buffer sleeves 29 are in limit fit with the side walls of the first fixture 5 or the second fixture 6. The inner wall of the horn-shaped buffer sleeve 29 is in smooth transition from the small opening to the large opening, and the end part of the special-shaped micro-pipe 4 to be processed is positioned in the horn-shaped buffer sleeve 29, so that the horn-shaped buffer sleeve 29 can prevent the end part of the special-shaped micro-pipe from wearing the nylon rope 7, the first micro-pipe 24, the second micro-pipe 27 and the displacement sensor wire. Because the small opening end of the horn-shaped buffer sleeve 29 is in limit fit with the side wall of the first tooling fixture 5 or the second tooling fixture 6, the horn-shaped buffer sleeve 29 can be used as a second fixing safety of the special-shaped micro-pipe 4 to be processed, and the special-shaped micro-pipe 4 to be processed is further prevented from moving to the nylon rope 7.
Further, as a specific implementation manner of the above embodiment, the driving device includes a servomotor 30, a speed reducer 31, a driving synchronous pulley 32 and a driven synchronous pulley 33, where the servomotor 30 is fixedly connected with the speed reducer 31, the speed reducer 31 is supported on the bottom wall of the reaction box 3 by a bracket 34, the driving synchronous pulley 32 is connected with the output shaft of the speed reducer 31, the driving synchronous pulley 32 is connected with the driven synchronous pulley 33 by a synchronous belt 52, and the driven synchronous pulley 33 is connected with one of the redirecting fixed pulleys 8 to drive the redirecting fixed pulley 8 to rotate synchronously. The friction force between the redirecting fixed pulley 8 and the nylon rope 7 is large, so that when the redirecting fixed pulley 8 rotates, the nylon rope 7 can be conveyed along with the redirecting fixed pulley, and the rest of the redirecting fixed pulleys 8 play roles in supporting and redirecting and are used for adapting to the shape of the special-shaped micro-tubule 4 to be processed. The controller 9 may be used to control the operation of the servo motor 30 based on the displacement sensor. The support 34 for supporting the speed reducer 31 comprises a horizontal support plate and a vertical support plate, wherein the horizontal support plate is fixedly connected to the bottom wall of the reaction box body 3, the vertical support plate is fixedly connected with the horizontal support plate, and a reinforcing rib plate is further connected between the vertical support plate and the horizontal support plate. Specifically, the direction-changing fixed pulley 8 is fixedly connected with the driven synchronous pulley 33 through a pulley shaft, and the direction-changing fixed pulley 8 is relatively fixed with the pulley shaft. The pulley shaft is rotatably connected with a pulley bracket 34 of the redirection fixed pulley 8.
Further, as a specific implementation manner of the above embodiment, the reaction box 3 includes a box frame 35, a metal bottom plate 36 is fixedly connected to the bottom of the box frame 35, and organic glass partition plates 37 are fixedly connected to the sides and the top, wherein the organic glass partition plates 37 on the front side and the rear side are used as openable and closable door bodies, handles can be further arranged on the door bodies, and a plurality of heat dissipation holes 38 are formed in the organic glass partition plates 37; the number of the redirecting fixed pulleys 8 is four, and the redirecting fixed pulleys 8 are fixedly connected to the plexiglas partition plate 37 through a pulley frame 39. The pulley frame 39 is fixed to the plexiglass spacer 37 at the corresponding position by screws. The organic glass partition 37 is provided to facilitate observation of the condition inside the reaction chamber 3.
Further, based on the above embodiment, the liquid inlet of the first synchronous peristaltic pump 23 is provided with a precision filter 40, and the liquid outlet of the second synchronous peristaltic pump 26 is provided with a flow valve 41; the liquid inlet of the second synchronous peristaltic pump 26 is provided with a flow valve 41, and the liquid outlet of the second synchronous peristaltic pump 26 is provided with a precision filter 40. The fine filter 40 can filter the micro impurities in the electrolyte to prevent the corresponding micro pipeline from being blocked, and the flow rate of the electrolyte in the micro pipeline can be controlled through the flow valve 41 to meet the polishing requirement. The flow valve 41 and the precise filter 40 can enable the second synchronous peristaltic pump 26 to have the characteristics of regulating and controlling the flow rate of electrolyte and having high purity of supplied electrolyte.
Further, as a specific implementation manner of the embodiment, a T-shaped thread bush 42 is arranged at the outer end of the first hard sponge section 10, a rod body of the T-shaped thread bush 42 is inserted into the first hard sponge section 10, a plate body at the end of the T-shaped thread bush 42 is adhered to the outer end face of the first hard sponge section 10 and is fixedly connected with the outer end face of the first hard sponge section through a fastening screw 43, a through hole provided with internal threads is formed in the axis of the T-shaped thread bush 42, a tubular thread bush 44 is fixedly connected to the nylon rope 7 at a corresponding position through a jackscrew, an external thread is arranged on the tubular thread bush 44, and the first hard sponge section 10 is fixedly connected with the nylon rope 7 through the T-shaped thread bush 42 and the tubular thread bush 44; the connecting structure of the hard sponge section II 11 and the nylon rope 7 is consistent with the connecting structure of the hard sponge section I10 and the nylon rope 7. The insulating layer 12 on the outer side of the hard sponge section can prevent the T-shaped thread sleeve 42 from conducting electricity, the hard sponge section II 11 and the nylon rope 7 are fixedly connected through the T-shaped thread sleeve 42 and the tubular thread sleeve 44, and the connecting structure is firm, so that a guarantee is provided for stable transmission of an electrolysis area.
Further, as a specific implementation manner of the above embodiment, two ends of the nylon rope 7 are respectively and fixedly connected with a threaded connection end thread sleeve 45 through jackscrews, the nylon rope 7 adjacent to the two end thread sleeves 45 is also penetrated with a polyether-ether-ketone ball 16, and the polyether-ether-ketone ball 16 is clamped on the nylon rope 7. The two ends of the nylon rope 7 are connected through the two end thread sleeves 45, the nylon rope 7 is convenient to detach, the closed loop sleeve of the nylon rope 7 plays a tensioning role and simultaneously ensures stable power transmission, the polyether-ether-ketone balls 16 on the two sides support the two end thread sleeves 45, and the situation that the end thread sleeves 45 contact the inner wall of the special-shaped micro-tubule 4 to be processed to influence the operation of an electroplating polishing system when moving in the special-shaped micro-tubule 1 is avoided.
Further, as a specific implementation manner of the above embodiment, the device further comprises a horizontal working support table 46 with adjustable height, a plurality of height-adjustable supporting legs 47 are arranged at the bottom of the horizontal working support table 46, the electrolyte tank 1, the waste liquid tank 2, the first synchronous peristaltic pump 23, the second synchronous peristaltic pump 26 and the reaction tank 3 are all arranged on the horizontal working support table 46, a plurality of height-adjustable supporting legs 47 are arranged at the bottom of the reaction tank 3, and a spring damping table 48 is further arranged between the electrolyte tank 1 and the waste liquid tank 2 and the horizontal working support table 46 respectively. The spring damper table 48 can filter out minute vibrations transmitted upward from the horizontal work support table 46.
Further, as a specific implementation manner of the above embodiment, notch grooves 49 are respectively provided at four corners of the bottom of the spring damper 48, damper springs 50 with axes in the vertical direction are fixedly connected in the notch grooves 49, the bottom wall of the spring damper 48 and the four damper springs 50 thereof are in direct contact with the top surface of the horizontal work support table 46, and the top of the spring damper 48 is provided with a mounting groove for embedding the electrolyte tank 1 or the waste liquid tank 2. The electrolyte tank 1 or the waste liquid tank 2 is embedded into the mounting groove of the spring damping table 48, so that the structure is stable and the design is reasonable. And a drain valve communicated with the inside is arranged on the side wall of the electrolyte tank 1 or the waste liquid tank 2, so that the liquid and cleaning equipment can be replaced conveniently.
Further, as a specific implementation of the above embodiment, the side wall of the circular copper core substrate 13 is covered with the insulating layer 12; the metal bottom plate 36 is provided with two oblong holes 51 which are arranged in parallel and used for installing the first fixture 5 and the second fixture 6. The side wall of the circular copper core substrate 13 is covered with the insulating layer 12 in order to prevent the deposition of the precipitation from adhering to the side wall of the circular copper core substrate 13; the first fixture 5 and the second fixture 6 can be installed in the oblong hole 51, for example, when the structures of the first fixture 5 and the second fixture 6 comprise a fork supporting base, two connecting pins of the fork supporting base can be respectively installed at the oblong hole 51, the distance between the first fixture 5 and the second fixture 6 can be adjusted according to the length of the special-shaped micro-pipe 4 to be processed, and the two oblong holes 51 can be used as sliding rails of the first fixture 5 and the second fixture 6.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Although described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and they should be construed as covering the scope of the appended claims.
Claims (10)
1. The utility model provides an electrolytic polishing device of special-shaped micro-pipe inner wall, a serial communication port, including electrolyte groove (1), waste liquid groove (2) and reaction box (3), fixedly connected with is used for supporting frock clamp one (5) and frock clamp two (6) at wait processing special-shaped micro-pipe (4) both ends respectively on the diapire of reaction box (3), nylon rope (7) have been worn to put in waiting processing special-shaped micro-pipe (4), nylon rope (7) wholly form the closed snare after detachable connection in nylon rope (7) both ends, be provided with a plurality of redirecting fixed pulleys (8) with nylon rope (7) complex in reaction box (3), nylon rope (7) still cooperate with make its forward or reverse drive's drive arrangement, drive arrangement is connected with controller (9); the middle of the special-shaped micro-pipe (4) to be processed is provided with a first hard sponge section (10) and a second hard sponge section (11), the side walls of the first hard sponge section (10) and the second hard sponge section (11) are coated with an insulating layer (12), the first hard sponge section (10) and the second hard sponge section (11) provided with the insulating layer (12) are in transition fit with the inner wall of the special-shaped micro-pipe (4) to be processed, the inner end of the first hard sponge section (10) is sequentially adhered with a first round copper core substrate (13) and a first round polyether-ether-ketone block (14) from outside to inside, the side wall of the first round copper core substrate (13) is in clearance fit with the inner wall of the special-shaped micro-pipe (4) to be processed, the diameter of the first round polyether-ether-ketone block (14) is smaller than the diameter of the first round copper core substrate (13), the inner end of the second hard sponge section (11) is adhered with a second round polyether-ether-ketone block (15), the side wall of the second round polyether-ether-ketone block (15) is in clearance fit with the inner wall of the special-shaped micro-pipe (4) to be processed, the nylon rope (7) sequentially penetrates the first hard sponge section (10), the first round polyether-ether-ketone block (13), the second round polyether-ketone block (14) is fixedly connected with the second round polyether-ether-ketone block (11) and the second hard sponge section (11) respectively, the circular polyether-ether-ketone block I (14) and the circular polyether-ether-ketone block II (15) are clamped on the nylon rope (7), and a plurality of polyether-ether-ketone balls (16) which are unevenly arranged at intervals are also penetrated and clamped on the nylon rope (7) between the circular polyether-ether-ketone block I (14) and the circular polyether-ether-ketone block II (15); the outer wall of the special-shaped micro-pipe (4) to be processed is connected to a pulse alternating current power supply positive electrode (18) through a conductive clamp (17) and a wire, an electrode wire (19) is arranged in the hard sponge section I (10) in a penetrating way, the inner end of the electrode wire (19) extends inwards into the round copper core substrate (13), and the outer end of the electrode wire (19) penetrates out of the end part of the special-shaped micro-pipe (4) to be processed and is connected to a pulse alternating current power supply negative electrode (20); the bottom of the electrolyte tank (1) is provided with a constant temperature heating pipe (21) and electrolyte is contained in the tank, the electrolyte tank (1) is connected to a liquid inlet of a first synchronous peristaltic pump (23) through a first liquid conveying pipeline (22), a liquid outlet of the first synchronous peristaltic pump (23) is connected with a first micro pipeline (24), and the free end of the first micro pipeline (24) penetrates through the hard sponge section I (10) and then stretches into a special-shaped micro pipe (4) to be processed between the round polyether-ether-ketone block I (14) and the round polyether-ether-ketone block II (15); the waste liquid tank (2) is connected to a liquid outlet of a second synchronous peristaltic pump (26) through a second liquid conveying pipeline (25), a liquid inlet of the second synchronous peristaltic pump (26) is connected with a second micro pipeline (27), and a free end of the second micro pipeline (27) penetrates through the hard sponge section II (11) and then stretches into the special-shaped micro pipe (4) to be processed between the round polyether-ether-ketone block II (15) and the round polyether-ether-ketone block I (14); the inner side of the hard sponge section I (10) is also provided with a displacement sensor (28) connected with the controller (9).
2. The electrolytic polishing device for the inner wall of the special-shaped micro tube according to claim 1, wherein horn-shaped buffer sleeves (29) are further arranged at two ends of the special-shaped micro tube (4) to be processed, the end parts of the special-shaped micro tube (4) to be processed are inserted from small openings of the horn-shaped buffer sleeves (29), large openings of the horn-shaped buffer sleeves (29) are arranged outwards, the end parts of the special-shaped micro tube (4) to be processed are positioned in the horn-shaped buffer sleeves (29), the horn-shaped buffer sleeves (29) are fixedly connected with the end parts of the special-shaped micro tube (4) to be processed through a plurality of jackscrews, and the small opening ends of the horn-shaped buffer sleeves (29) are in limit fit with the side walls of the first fixture (5) or the second fixture (6).
3. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to claim 2, wherein the driving device comprises a servo motor (30), a speed reducer (31), a driving synchronous pulley (32) and a driven synchronous pulley (33), the servo motor (30) is fixedly connected with the speed reducer (31), the speed reducer (31) is supported on the bottom wall of the reaction box body (3) through a support (34), the driving synchronous pulley (32) is connected with an output shaft of the speed reducer (31), the driving synchronous pulley (32) is connected with the driven synchronous pulley (33) through a synchronous belt (52), and the driven synchronous pulley (33) is connected with one of the redirecting fixed pulleys (8) to drive the redirecting fixed pulleys (8) to synchronously rotate.
4. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to claim 3, wherein the reaction box body (3) comprises a box body frame (35), a metal bottom plate (36) is fixedly connected to the bottom of the box body frame (35), an organic glass partition plate (37) is fixedly connected to the side part and the top part, the organic glass partition plate (37) on the front side and the rear side is used as an openable door body, and a plurality of radiating holes (38) are formed in the organic glass partition plate (37); the number of the redirection fixed pulleys (8) is four, and the redirection fixed pulleys (8) are fixedly connected to the organic glass partition board (37) through pulley frames (39).
5. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to any one of claims 1 to 4, wherein a liquid inlet of the first synchronous peristaltic pump (23) is provided with a precision filter (40), and a liquid outlet of the second synchronous peristaltic pump (26) is provided with a flow valve (41); the liquid inlet of the second synchronous peristaltic pump (26) is provided with a flow valve (41), and the liquid outlet of the second synchronous peristaltic pump (26) is provided with a precision filter (40).
6. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to claim 5, wherein a T-shaped thread sleeve (42) is arranged at the outer end of the hard sponge section I (10), a rod body of the T-shaped thread sleeve (42) is inserted into the hard sponge section I (10), a plate body at the end part of the T-shaped thread sleeve (42) is adhered to the outer end face of the hard sponge section I (10) and fixedly connected with the hard sponge section I through a fastening screw (43), a through hole provided with an internal thread is formed in the axis of the T-shaped thread sleeve (42), a tubular thread sleeve (44) is fixedly connected to a nylon rope (7) at a corresponding position through a jackscrew, an external thread is arranged on the tubular thread sleeve (44), and the hard sponge section I (10) is fixedly connected with the nylon rope (7) through the T-shaped thread sleeve (42) and the tubular thread sleeve (44); the connecting structure of the hard sponge section II (11) and the nylon rope (7) is consistent with the connecting structure of the hard sponge section I (10) and the nylon rope (7).
7. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to claim 6, wherein two ends of the nylon rope (7) are fixedly connected with end thread sleeves (45) capable of being connected in a threaded mode through jackscrews respectively, polyether-ether-ketone balls (16) are further arranged on the nylon rope (7) adjacent to the two end thread sleeves (45) in a penetrating mode, and the polyether-ether-ketone balls (16) are clamped on the nylon rope (7).
8. The special-shaped micro-pipe inner wall electrolytic polishing device according to claim 7, further comprising a horizontal working support table (46) with adjustable height, wherein a plurality of supporting feet (47) with adjustable height are arranged at the bottom of the horizontal working support table (46), the electrolyte tank (1), the waste liquid tank (2), the first synchronous peristaltic pump (23), the second synchronous peristaltic pump (26) and the reaction box body (3) are all arranged on the horizontal working support table (46), a plurality of supporting feet (47) with adjustable height are arranged at the bottom of the reaction box body (3), and a spring shock absorption table (48) is further arranged between the electrolyte tank (1), the waste liquid tank (2) and the horizontal working support table (46) respectively.
9. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to claim 8, wherein the four corners of the bottom of the spring damping table (48) are respectively provided with a notch groove (49), damping springs (50) with axes in the vertical direction are fixedly connected in the notch grooves (49), the bottom wall of the spring damping table (48) and the four damping springs (50) thereof are in direct contact with the top surface of the horizontal working supporting table (46), and the top of the spring damping table (48) is provided with a mounting groove for embedding an electrolyte tank (1) or a waste liquid tank (2).
10. The electrolytic polishing device for the inner wall of the special-shaped micro-pipe according to claim 9, wherein the side wall of the round copper core substrate (13) is coated with an insulating layer (12); two oblong holes (51) which are arranged in parallel and used for installing a first fixture (5) and a second fixture (6) are formed in the metal bottom plate (36).
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