CN117948437A - Electroplating process for large ball valve and ball core - Google Patents
Electroplating process for large ball valve and ball core Download PDFInfo
- Publication number
- CN117948437A CN117948437A CN202311768523.6A CN202311768523A CN117948437A CN 117948437 A CN117948437 A CN 117948437A CN 202311768523 A CN202311768523 A CN 202311768523A CN 117948437 A CN117948437 A CN 117948437A
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- Prior art keywords
- ball valve
- electroplating
- ball
- core
- rotating
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- 238000009713 electroplating Methods 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 238000007747 plating Methods 0.000 claims description 58
- 238000009434 installation Methods 0.000 claims description 46
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000005238 degreasing Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 229910001453 nickel ion Inorganic materials 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Electroplating Methods And Accessories (AREA)
Abstract
The invention belongs to the technical field of ball valves, in particular to an electroplating process of a large ball valve and a ball core, which comprises the ball valve core and a valve housing for mounting the ball valve core, wherein shaft sleeves positioned on the same vertical line are communicated and welded at the upper end and the lower end of the valve housing through holes, trunnions for movably supporting the ball valve core are fixedly sleeved on the inner wall of the shaft sleeve positioned at the bottom of the valve housing, and a valve rod fixedly connected with the ball valve core is movably arranged on the inner wall of the shaft sleeve positioned at the top of the valve housing. According to the electroplating process for the large ball valve and the ball core, the telescopic rotating mechanism is arranged, so that the inner wall of the ball core of the ball valve is conveniently electroplated, the air cylinder is pushed to drive the nozzle to enter the inner wall of the ball core of the ball valve, and electroplating liquid is uniformly sprayed on the inner wall of the ball core of the ball valve when the rotating motor drives the nozzle to perform circular motion along the inner wall of the ball core of the ball valve, so that the phenomenon that the inner wall of the ball core of the ball valve cannot be electroplated uniformly is avoided.
Description
Technical Field
The invention relates to the technical field of ball valve production, in particular to a large ball valve and a ball core electroplating process.
Background
The ball valve ball core usually has complex shape and larger volume, if the traditional manual electroplating mode is adopted for processing, the efficiency is low, and the quality problems of uneven coating, plating omission and the like are easy to occur because of the large volume of the valve core, so the electroplating mode of the existing ball valve ball core is generally completed through the automatic operation of a machine.
However, the electroplating mode of the existing ball valve ball core needs a large amount of electroplating liquid in the use process, the larger the volume is, the more electroplating liquid is needed, and particularly, the electroplating of the large ball valve ball core is not carried out every day, so that the electroplating liquid is easy to waste, the area which is difficult to cover is formed on the surface of the ball valve ball core due to uneven current density distribution and the complex geometric shape of the ball valve ball core, and the uneven electroplating of the electroplated layer of the ball valve ball core is caused, so that the reliability and the service life of the ball valve ball core are reduced.
Disclosure of Invention
Based on the technical problems presented above, the invention provides a large ball valve and a ball core electroplating process.
The invention provides a large ball valve, which comprises a ball valve core and a valve shell for installing the ball valve core, wherein shaft sleeves positioned on the same vertical line are communicated and welded at the upper end and the lower end of the valve shell after holes are formed, and trunnions for movably supporting the ball valve core are fixedly sleeved on the inner wall of the shaft sleeve positioned at the bottom of the valve shell.
The valve rod fixedly connected with the ball core of the ball valve is movably arranged on the inner wall of the shaft sleeve at the top of the valve casing, and a speed reducer for driving the valve rod to rotate is fixedly arranged at the top of the shaft sleeve at the top of the valve casing through bolts.
Preferably, the connection parts of the ball core of the ball valve and the two ends of the valve casing are sequentially provided with an O-shaped ring, a valve seat spring and a valve seat ring for sealing from outside to inside, so that the sealing action between the ball core of the ball valve and the inner wall of the valve casing during the rotation opening and closing of the ball core of the ball valve is realized.
The bottom surface fixed mounting of valve casing has the supporting seat, the top surface fixed mounting of valve casing has the lug that is used for hoist and mount.
An electroplating process for large ball valves and ball cores comprises the following steps:
s1, performing surface treatment, namely cleaning, degreasing, derusting and the like on the surface of a ball core of the ball valve, wherein the cleaning and degreasing can be performed by alkaline or organic solvent cleaning, and the derusting can be performed by mechanical means or acid cleaning;
S2, electroplating a nickel bottom layer on the ball core of the ball valve, wherein the electroplating solution of the nickel bottom layer is generally nickel sulfate electroplating solution or nickel chloride electroplating solution, and the electroplating solution is poured into an electroplating pool;
S3, conveying the ball core of the ball valve subjected to surface treatment into a plating tank body of a plating tank, so that the bottom of the ball core of the ball valve is soaked in plating solution for plating;
s4, driving the nozzles which are symmetrically distributed on the two sides of the electroplating bath body to enter the inner wall of the ball valve ball core through the telescopic rotating mechanism, enabling the nozzles to perform circular motion on the inner wall of the ball valve ball core, and enabling the electroplating liquid sprayed out of the nozzles to electroplate the inner wall of the ball valve ball core;
s5, clamping the inner wall of the ball valve core through the clamping mechanism, so that the ball valve core is driven to rotate, and the outer surface of the ball valve core can be soaked and contacted with the electroplating solution.
The telescopic rotating mechanism comprises telescopic tables which are arranged on two sides of the electroplating pool in a front-back symmetrical mode, telescopic cylinders are fixedly installed on the upper surfaces of the two telescopic tables, a first installation shell and a second installation shell are fixedly installed at one ends of the telescopic cylinders respectively, and a first rotating sleeve and a second rotating sleeve are installed at one ends, far away from the telescopic cylinders, of the first installation shell and the second installation shell respectively through bearings.
The clamping mechanism comprises rotating shafts which are respectively arranged on the inner walls of the first rotating sleeve and the second rotating sleeve through bearings, connecting blocks are fixedly sleeved on the surfaces of the four rotating shafts, and arc-shaped supporting plates are hinged to one ends, extending to the outer sides of the first rotating sleeve or the second rotating sleeve, of the connecting blocks through pin shafts.
Preferably, the surface sliding joint of plating bath body has two support sleeves, the support sleeve is kept away from the one end of plating bath body extends to outside the plating bath, just the spacing groove has been seted up on the surface of plating bath, the surface of support sleeve with the inner wall sliding joint of spacing groove, first rotation cover with the surface of second rotation cover respectively with two the inner wall sliding connection of support sleeve.
Through the technical scheme, the up-and-down expansion of the two expansion tables drives the expansion cylinder connected with the expansion tables to move up and down, the up-and-down movement of the two expansion cylinders drives the first rotating sleeve and the second rotating sleeve to move up and down through the first installation shell and the second installation shell connected with the two expansion tables, so that the two supporting sleeves are driven to move up and down along the inner wall of the limiting groove, and the expansion of the piston rods of the two expansion cylinders drives the first rotating sleeve and the second rotating sleeve connected with the two expansion cylinders to move back and forth along the inner wall of the supporting sleeve.
Preferably, the inner walls of the first rotating sleeve and the second rotating sleeve are respectively fixedly provided with a first rotating rod and a second rotating rod through bearings, one ends of the first rotating rod and the first rotating sleeve, which are far away from the first installation shell, are respectively fixedly provided with a magnetic attraction buckle, one ends of the second rotating rod and the second rotating sleeve, which are far away from the second installation shell, are provided with magnetic attraction clamping grooves, and the opposite side surfaces of the first rotating sleeve and the second rotating sleeve and the opposite side surfaces of the first rotating rod and the second rotating rod are respectively provided with sealing rings.
Through above-mentioned technical scheme, the extension of two flexible cylinder piston rods drives first rotating sleeve and second and rotates the cover and be close to each other for first rotating lever is close to with the second rotating lever, and the buckle is inhaled with magnetism to be inhaled the draw-in groove and is adsorbed together to the magnetism, and the sealing washer seals the gap between first rotating sleeve and second rotating sleeve and first rotating lever and the second rotating lever simultaneously, thereby prevents magnetism and inhale buckle, magnetism and inhale draw-in groove and electroplating solution contact.
Preferably, the inner walls of the first rotating sleeve and the second rotating sleeve are respectively provided with liquid storage tanks in a vertically symmetrical distribution, one ends of the nozzles are respectively distributed on the opposite side surfaces of the two liquid storage tanks in a rectangular array through pipelines, liquid inlets are formed in one side surfaces of the four liquid storage tanks, the liquid inlets extend to the outside of the first rotating sleeve or the second rotating sleeve, and piston heads are slidably inserted into the inner walls of the liquid inlets.
Through above-mentioned technical scheme, the plating solution is equipped with in the liquid reserve tank, and the nozzle sprays the inner wall of ball valve ball core with the plating solution in the liquid reserve tank through the pipeline, fills plating solution in the liquid reserve tank through the inlet, and the piston head seals the inlet.
Preferably, a rotating motor is arranged on the inner wall of the second installation shell, and one end of an output shaft of the rotating motor is fixedly sleeved with one end, close to the second installation shell, of the second rotating sleeve.
Through above-mentioned technical scheme, the rotation of rotating electrical machines output shaft drives the second that is connected with it and rotates the cover, and the rotation of second rotates the cover and drives the nozzle rotation.
Preferably, a servo motor is fixedly installed on the inner wall of the first installation shell, and one end of an output shaft of the servo motor extends into the first rotating sleeve and is fixedly sleeved with one end, close to the first installation shell, of the first rotating rod.
Through above-mentioned technical scheme, the rotation of servo motor output shaft drives the rotation of the first dwang rather than being connected.
Preferably, the surfaces of the first rotating rod and the second rotating rod are fixedly sleeved with driving gears, one end surface of each of the four rotating shafts, which is close to the driving gears, is fixedly sleeved with driven gears, and two sides of the outer surface of each driving gear are respectively meshed with the surfaces of the two driven gears.
Through above-mentioned technical scheme, the rotation of first dwang drives the driving gear and rotates, and the rotation of driving gear drives two driven gears through the meshing with two driven gears and carries out the opposite rotation, and driven gear's rotation drives the pivot and rotates, and the rotation of pivot drives the arc fagging through the connecting block and takes place to deflect.
Preferably, both ends of the arc supporting plate are smooth arc-shaped, and one end hinged with the connecting block is in contact with the inner wall of the ball core of the ball valve.
Through above-mentioned technical scheme, be convenient for carry out trowelling to the inner wall of ball valve ball core when the nozzle carries out the circumference rotation along ball valve ball core inner wall.
Preferably, the self-driven sliding rail is fixedly installed on two sides of the upper surface of the electroplating pool, the concave supporting frame is fixedly installed on the upper surface of the sliding block of the self-driven sliding rail, the hydraulic cylinder is installed at the top of the concave supporting frame, the third installation shell is fixedly installed at one end of the piston rod of the hydraulic cylinder, the rotating motor is fixedly installed in the third installation shell, and the vacuum chuck is installed at one end of the output shaft of the rotating motor through the bearing.
Through above-mentioned technical scheme, the start-up of self-driven slide rail drives concave support frame through the slider and removes, and the flexible vacuum chuck that drives through the third installation casing of pneumatic cylinder piston rod reciprocates, and vacuum chuck adsorbs the ball valve ball core, and the rotation motor drives vacuum chuck and rotates.
Preferably, the bottom of plating bath body is installed through the extension board the inside of electroplating cell, the bottom of plating bath body is provided with the feed liquor hole, the inside of plating bath body is provided with the support cavity, the porous membrane is installed to the inner wall of support cavity, the circulating pump is installed through the backup pad to the inner wall of electroplating cell, the liquid outlet end of circulating pump pass through the pipeline with the electroplating cell intercommunication, the liquid suction end fixed intercommunication of circulating pump has the tee bend of Y shape, the both ends of tee bend all extend to in the plating bath and wherein one end extends to in the support cavity.
Through the technical scheme, the electroplating solution in the electroplating tank enters the supporting cavity through the solution inlet hole, nickel ions are adsorbed on the surface of the ball core of the ball valve through electroplating by the porous membrane, and the circulating pump pumps and recycles the supporting cavity and the electroplating solution in the electroplating tank.
The beneficial effects of the invention are as follows:
1. Through setting up the plating bath body to be provided with the support cavity in the inside of plating bath body, support the cavity and support the ball valve ball core, be convenient for make the bottom of ball valve ball core soak in the plating solution of support cavity, and install the porous membrane at the inner wall of support cavity, realize the transmission to nickel ion through the pore size and the distribution of control porous membrane, and then improve electroplating efficiency, can not cause the plating solution extravagant simultaneously.
2. Through setting up flexible rotary mechanism, be convenient for electroplate the inner wall of ball valve ball core, drive the inner wall that the nozzle got into ball valve ball core through pushing the cylinder to evenly spray the inner wall at ball valve ball core with the plating solution when rotating electrical machines drive the nozzle and carry out circular motion along ball valve ball core inner wall, avoid the inner wall of ball valve ball core unable electroplating evenly.
3. Through setting up centre gripping chucking mechanism, be convenient for drive ball valve ball core and rotate to be convenient for make the surface homoenergetic of ball valve ball core soak in the plating solution in the support cavity, thereby be convenient for nickel ion evenly distributed is on ball valve ball core surface, prevent that current density from distributing unevenly, and then improve the electroplated layer reliability, prevent that the electroplated layer from peeling off easily or the damaged condition from producing.
Drawings
FIG. 1 is a schematic view of a large ball valve according to the present invention;
FIG. 2 is a perspective view of the plating bath of the plating process of the large ball valve and the ball core according to the invention;
FIG. 3 is a perspective view of a limit groove structure of a large ball valve and a ball core electroplating process according to the invention;
FIG. 4 is a perspective view of a plating bath body structure of a large ball valve and ball core electroplating process according to the present invention;
FIG. 5 is a perspective view of a porous membrane structure of a large ball valve and a ball core electroplating process according to the present invention;
FIG. 6 is a perspective view of a support sleeve structure of a large ball valve and ball core electroplating process according to the present invention;
FIG. 7 is a perspective view of a nozzle structure of a large ball valve and ball core electroplating process according to the present invention;
FIG. 8 is a perspective view of a servo motor structure of a large ball valve and ball core electroplating process according to the present invention;
FIG. 9 is a perspective view of a first rotating rod structure of a large ball valve and ball core electroplating process according to the present invention;
FIG. 10 is a perspective view of a magnetic clamping groove structure of a large ball valve and a ball core electroplating process according to the invention;
FIG. 11 is a perspective view of a second rotating sleeve structure of a process for electroplating a large ball valve and a ball core according to the present invention;
FIG. 12 is a perspective view of a rotary motor structure of a large ball valve and a ball core electroplating process according to the present invention;
FIG. 13 is a perspective view of a second rotary rod structure of a large ball valve and ball core electroplating process according to the present invention;
fig. 14 is a perspective view of a piston head structure of a large ball valve and a ball core electroplating process according to the present invention.
In the figure: 1. a ball valve core; 101. a valve housing; 102. a shaft sleeve; 103. a trunnion; 104. a valve stem; 105. a speed reducer; 106. an O-ring; 107. a valve seat spring; 108. a valve seat ring; 109. a support base; 1010. lifting lugs; 2. an electroplating pool; 3. a plating bath body; 4. a nozzle; 5. a telescoping table; 501. a telescopic cylinder; 502. a first mounting housing; 503. a second mounting housing; 504. a first rotating sleeve; 505. a second rotating sleeve; 506. a liquid storage tank; 507. a liquid inlet; 508. a piston head; 509. a rotating electric machine; 6. a rotating shaft; 601. a connecting block; 602. arc supporting plates; 603. a first rotating lever; 604. a second rotating lever; 605. a servo motor; 606. a drive gear; 607. a driven gear; 7. a support sleeve; 8. a limit groove; 9. a magnetic attraction buckle; 10. a magnetic clamping groove; 11. a seal ring; 12. self-driven slide rail; 13. a concave support frame; 14. a hydraulic cylinder; 15. a third mounting housing; 16. a rotating motor; 17. a vacuum chuck; 18. a support cavity; 19. a porous membrane; 20. a circulation pump; 21. a three-way pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1, a large ball valve comprises a ball valve core 1 and a valve shell 101 for installing the ball valve core 1, wherein the diameter of the ball valve core 1 can reach 1.6m, and the ball valve is specially used for large oil and gas pipeline transportation.
The upper end and the lower end of the valve casing 101 are communicated and welded with the shaft sleeve 102 positioned on the same vertical line after being perforated, and the integral welding is adopted, so that the coordination of the integral action is facilitated. The inner wall of the shaft sleeve 102 positioned at the bottom of the valve casing 101 is fixedly sleeved with a trunnion 103 for movably supporting the ball core 1 of the ball valve.
The valve rod 104 fixedly connected with the ball core 1 is movably arranged on the inner wall of the shaft sleeve 102 at the top of the valve casing 101, the speed reducer 105 for driving the valve rod 104 to rotate is fixedly arranged at the top of the shaft sleeve 102 at the top of the valve casing 101 through bolts, and the action of opening and closing can be realized by matching the speed reducer with a large ball valve by utilizing low-speed large torque of the speed reducer.
The connection parts of the ball valve core 1 and the two ends of the valve casing 101 are sequentially provided with an O-shaped ring 106, a valve seat spring 107 and a valve seat ring 108 for sealing from outside to inside, so that the sealing action between the ball valve core 1 and the inner wall of the valve casing 101 during the rotation opening and closing process is realized.
The bottom surface fixed mounting of valve casing 101 has supporting seat 109, the top surface fixed mounting of valve casing 101 has the lug 1010 that is used for hoist and mount, and the lug 1010 of both sides can facilitate the processing, hoist and mount, the necessary action such as transportation.
Through setting up large-scale ball valve, can effectual increase oil gas transmission's volume, reduce the construction cost of many pipelines, especially to the ultra-large-scale oil gas transmission of people's oil gas use amount, single tube conveying volume is several times of ordinary ball valve.
Referring to fig. 2-14, a process for electroplating a large ball valve and a ball core, the process comprising the steps of:
S1, performing surface treatment, namely cleaning, degreasing, derusting and the like on the surface of the ball core 1 of the ball valve, wherein the cleaning and degreasing can be performed by alkaline or organic solvent cleaning, and the derusting can be performed by mechanical or acid cleaning.
S2, electroplating a nickel bottom layer of the ball core 1 of the ball valve, wherein the electroplating solution of the nickel bottom layer is generally nickel sulfate electroplating solution or nickel chloride electroplating solution, and the electroplating solution is poured into the electroplating pool 2.
S3, conveying the ball valve ball core 1 subjected to surface treatment into a plating tank body 3 of the plating tank 2, so that the bottom of the ball valve ball core 1 is soaked in plating solution for plating.
S4, driving the nozzles 4 which are symmetrically distributed on the two sides of the electroplating tank body 3 to enter the inner wall of the ball valve ball core 1 through the telescopic rotating mechanism, and enabling the nozzles 4 to conduct circular motion on the inner wall of the ball valve ball core 1, so that electroplating liquid sprayed out of the nozzles 4 electroplates the inner wall of the ball valve ball core 1.
S5, clamping the inner wall of the ball valve ball core 1 through a clamping mechanism, so that the ball valve ball core 1 is driven to rotate, and the outer surface of the ball valve ball core 1 can be soaked and contacted with electroplating liquid.
The telescopic rotating mechanism comprises telescopic tables 5 which are arranged on two sides of the electroplating pool 2 in a front-back symmetrical mode, telescopic air cylinders 501 are fixedly installed on the upper surfaces of the two telescopic tables 5, a first installation shell 502 and a second installation shell 503 are fixedly installed at one ends of the two telescopic air cylinders 501 respectively, and a first rotating sleeve 504 and a second rotating sleeve 505 are installed at one ends, far away from the telescopic air cylinders 501, of the first installation shell 502 and the second installation shell 503 through bearings respectively.
The clamping mechanism comprises rotating shafts 6 which are respectively arranged on the inner walls of a first rotating sleeve 504 and a second rotating sleeve 505 through bearings, connecting blocks 601 are fixedly sleeved on the surfaces of the four rotating shafts 6, and one ends of the connecting blocks 601 extending to the outside of the first rotating sleeve 504 or the second rotating sleeve 505 are hinged with arc supporting plates 602 through pin shafts.
In order to be convenient for transport ball valve ball core 1, all fixed mounting has self-driven slide rail 12 in electroplating bath 2's upper surface both sides, self-driven slide rail 12's slider upper surface fixed mounting has concave support frame 13, hydraulic cylinder 14 is installed at the top of concave support frame 13, the piston rod one end fixed mounting third installation casing 15 of hydraulic cylinder 14, the inside fixed mounting of third installation casing 15 has rotating electrical machines 16, vacuum chuck 17 is installed through the bearing to rotating electrical machines 16's output shaft one end, self-driven slide rail 12's start-up passes through the slider and drives concave support frame 13 and remove, the flexible vacuum chuck 17 that drives of hydraulic cylinder 14 piston rod reciprocates through third installation casing 15, vacuum chuck 17 adsorbs ball valve ball core 1, rotating electrical machines 16 drive vacuum chuck 17 and rotate, thereby drive ball valve ball core 1 through vacuum chuck 17 and rotate.
In order to drive the clamping mechanism to rotate, a first rotating rod 603 and a second rotating rod 604 are fixedly arranged on the inner walls of the first rotating sleeve 504 and the second rotating sleeve 505 respectively through bearings, a servo motor 605 is fixedly arranged on the inner wall of the first installation shell 502, one end of an output shaft of the servo motor 605 extends into the first rotating sleeve 504 and is fixedly sleeved with one end, close to the first installation shell 502, of the first rotating rod 603, and the rotation of the output shaft of the servo motor 605 drives the first rotating rod 603 connected with the first rotating rod to rotate.
In order to connect the first rotating rod 603 and the second rotating rod 604 and the first rotating sleeve 504 and the second rotating sleeve 505 together, the magnetic attraction buckle 9 is fixedly installed at one ends of the first rotating rod 603 and the first rotating sleeve 504 far away from the first installation shell 502, the magnetic attraction clamping groove 10 is formed at one ends of the second rotating rod 604 and the second rotating sleeve 505 far away from the second installation shell 503, and sealing rings 11 are arranged on the opposite side surfaces of the first rotating rod 504 and the second rotating sleeve 505 and the opposite side surfaces of the first rotating rod 603 and the second rotating rod 604, and the sealing rings 11 prevent the magnetic attraction buckle 9 from contacting with the plating solution through the magnetic attraction clamping groove 10.
In order to drive the first rotating sleeve 504 and the second rotating sleeve 505 to rotate, a rotating motor 509 is arranged on the inner wall of the second installation shell 503, one end of an output shaft of the rotating motor 509 is fixedly sleeved with one end, close to the second installation shell 503, of the second rotating sleeve 505, which is connected with the second rotating sleeve 505, is driven to rotate by rotation of the output shaft of the rotating motor 509, and the first rotating sleeve 504 is driven to rotate by combination of the magnetic attraction buckle 9 and the magnetic attraction friction.
In order to drive the nozzles 4 to rotate, the inner walls of the first rotating sleeve 504 and the second rotating sleeve 505 are respectively provided with liquid storage tanks 506 in a vertically symmetrical distribution, one ends of the plurality of nozzles 4 are respectively distributed on the opposite side surfaces of the two liquid storage tanks 506 in a rectangular array through pipelines, the nozzles 4 are driven to rotate by the rotation of the first rotating sleeve 504 and the second rotating sleeve 505, and the nozzles 4 spray the electroplating liquid in the liquid storage tanks 506 to the inner wall of the ball core 1 through the pipelines.
In order to add electroplating solution to the liquid storage tanks 506, liquid inlets 507 are formed in one side surface of each of the four liquid storage tanks 506, the liquid inlets 507 extend to the outside of the first rotating sleeve 504 or the second rotating sleeve 505, piston heads 508 are slidably inserted into the inner walls of the liquid inlets 507, electroplating solution is filled in the liquid storage tanks 506 through the liquid inlets 507, and the liquid inlets 507 are sealed by the piston heads 508.
Through setting up flexible rotary mechanism, be convenient for electroplate ball valve ball core 1's inner wall, drive nozzle 4 through the promotion cylinder and get into ball valve ball core 1's inner wall to evenly spray the plating solution at ball valve ball core 1's inner wall when rotating electrical machines 509 drive nozzle 4 and carry out circular motion along ball valve ball core 1 inner wall, avoid ball valve ball core 1's inner wall unable electroplating evenly.
In order to drive the rotating shafts 6 to rotate, the surfaces of the first rotating rod 603 and the second rotating rod 604 are fixedly sleeved with driving gears 606, one end surface of each of the four rotating shafts 6, which is close to each rotating gear, is fixedly sleeved with driven gears 607, two sides of the outer surface of each driving gear 606 are respectively meshed with the surfaces of the two driven gears 607, the first rotating rod 603 is driven to rotate through a servo motor 605, the second rotating rod 604 is driven to rotate when the first rotating rod 603 and the second rotating rod 604 are combined with the magnetic clamping groove 10 through the magnetic clamping buckle 9, the rotation of the first rotating rod 603 and the second rotating rod 604 respectively drives the driving gears 606 connected with the first rotating rod to rotate, the rotation of each driving gear 606 respectively drives the two driven gears 607 meshed with the driven gears 607 to rotate, the rotation of each driven gear 607 drives the rotating shaft 6 connected with the driven gears, the rotation of each rotating shaft 6 drives an arc supporting plate 602 to deflect through a connecting block 601, two ends of the arc supporting plate 602 are smooth arcs, one end of each arc supporting plate 602 contacts with the inner wall of a ball valve 1, the other end of the arc supporting plate 602 deflects to enable the other end of the arc supporting plate 602 to contact the ball valve 1 to rotate with the ball valve 1, and the ball valve 1 rotates to rotate after the ball valve 1 rotates, and the ball 1 rotates conveniently.
Through setting up centre gripping chucking mechanism, be convenient for drive ball valve ball core 1 and rotate to be convenient for make ball valve ball core 1's surface homoenergetic soak in the plating solution in supporting cavity 18, thereby be convenient for nickel ion evenly distributed is on ball valve ball core 1 surface, prevent that current density from distributing unevenly, and then improve the electroplated layer reliability, prevent that the electroplated layer from peeling off easily or the damaged condition from producing.
In order to carry out sliding support to first cover 504 and second cover 505 that rotates, sliding joint has two support cover 7 on the surface of plating bath body 3, the one end that plating bath body 3 was kept away from to support cover 7 extends outside plating bath 2, and spacing groove 8 has been seted up on the surface of plating bath 2, the surface of support cover 7 and the inner wall sliding joint of spacing groove 8, the surface of first cover 504 and second cover 505 that rotates is respectively with the inner wall sliding connection of two support covers 7, the setting of spacing groove 8 is convenient for drive support cover 7 and reciprocate along spacing groove 8 inner wall when telescopic bench 5 drives telescopic cylinder 501 and reciprocates, thereby lift ball valve ball 1, make ball valve ball 1 and support cavity 18 separation, be convenient for rotate ball valve ball 1.
In order to be convenient for recycle plating solution, install in the inside of electroplating cell 2 through the extension board in the bottom of plating bath body 3, the bottom of plating bath body 3 is provided with the feed liquor hole, the inside of plating bath body 3 is provided with supports cavity 18, porous membrane 19 is installed to the inner wall of supports cavity 18, circulation pump 20 is installed through the backup pad to the inner wall of electroplating cell 2, the liquid outlet end of circulation pump 20 communicates with electroplating cell 2 through the pipeline, the liquid suction end of circulation pump 20 is fixed to be linked together has the tee bend 21 of Y shape, the both ends of tee bend 21 all extend to in the plating bath body 3 and wherein one end extends to in the support cavity 18, the plating solution in the electroplating cell 2 gets into in the support cavity 18 through the feed liquor hole, and make nickel ion through carrying out electroplating absorption with ball valve ball 1 surface, circulation pump 20 pumps the plating solution in support cavity 18 and the plating cell 3 with the plating solution in the electroplating cell 2 and recycles.
Through setting up plating bath body 3 to be provided with the support cavity 18 in the inside of plating bath body 3, support cavity 18 supports ball valve ball core 1, is convenient for make the bottom of ball valve ball core 1 soak in the electroplating solution of support cavity 18, and installs porous membrane 19 at the inner wall of support cavity 18, realizes the transmission to nickel ion through the pore size and the distribution of control porous membrane 19, and then improves electroplating efficiency, can not cause the electroplating solution extravagant simultaneously.
Working principle: when the ball valve ball core 1 to be electroplated is adsorbed by the vacuum chuck 17 in use, the self-driven sliding rail 12 drives the concave supporting frame 13 to move through the sliding block, so that the ball valve ball core 1 to be electroplated is driven to be positioned right above the electroplating bath body 3, the piston rod of the hydraulic cylinder 14 stretches out and drives the vacuum chuck 17 to move downwards through the third mounting shell 15, so that the ball valve ball core 1 is placed on the supporting cavity 18, and then the vacuum chuck 17 loosens the adsorption of the ball valve ball core 1 and resets under the action of the hydraulic cylinder 14;
The extension of the piston rods of the two telescopic cylinders 501 respectively drives the first installation shell 502 and the second installation shell 503 which are connected with the two telescopic cylinders to be close to each other, the movement of the first installation shell 502 and the second installation shell 503 respectively drives the first rotating sleeve 504 and the second rotating sleeve 505 which are connected with the first installation shell 502 and the second installation shell 503 to be close to each other, and the movement of the first rotating sleeve 504 and the second rotating sleeve 505 respectively drives the first rotating rod 603 and the second rotating rod 604 to be close to each other until the magnetic attraction buckle 9 on the first rotating rod 603 is attracted by the magnetic attraction clamping groove 10 on the second rotating rod 604, and the magnetic attraction buckle 9 on the first rotating sleeve 504 is attracted by the magnetic attraction clamping groove 10 on the second rotating sleeve 505, so that the sealing ring 11 prevents the magnetic attraction buckle 9, the magnetic attraction clamping groove 10 and electroplating liquid from contacting;
Starting a rotary motor 509, wherein the rotation of an output shaft of the rotary motor 509 drives a second rotating sleeve 505 connected with the rotary motor 509 to rotate, so that the first rotating sleeve 504 is driven to rotate, the rotation of the first rotating sleeve 504 and the second rotating sleeve 505 drive a nozzle 4 to rotate, and the nozzle 4 sprays electroplating liquid in a liquid storage tank 506 to be in contact with the inner wall of a ball core 1 of the ball valve;
After a period of time, the rotary motor 509 and the nozzle 4 are closed, the servo motor 605 is started, the rotation of the output shaft of the servo motor 605 drives the first rotating rod 603 connected with the rotary motor 605 to rotate, thereby driving the second rotating rod 604 to rotate, the rotation of the first rotating rod 603 and the second rotating rod 604 drive the driving gears 606 connected with the rotary motor 605 to rotate, the rotation of the two driving gears 606 respectively drive the two driven gears 607 meshed with the driving gears 607 to rotate relatively, the rotation of the driven gears 607 drive the rotating shaft 6 connected with the driven gears to rotate, the rotation of the rotating shaft 6 drives the arc-shaped supporting plate 602 to deflect through the connecting block 601, the deflection of the arc-shaped supporting plate 602 enables the other end of the arc-shaped supporting plate 602 to be in contact with the ball valve core 1, so as to clamp the ball valve core 1 conveniently, then the telescopic table 5 stretches upwards to drive the supporting sleeve 7 to move upwards along the inner wall of the limiting groove 8 through the telescopic cylinder 501, so as to lift the ball valve core 1 and the supporting cavity 18, then the servo motor 605 is started, the rotary motor 509 drives the first rotating sleeve 504 and the second rotating sleeve 505 to rotate relatively through the arc-shaped supporting plate 1, and the ball core 1 is driven by a certain angle through the arc-shaped supporting plate 602 when the rotation of the rotating sleeve 505;
When the ball valve ball core 1 rotates in the electroplating bath body 3 for a circle, a piston rod of the hydraulic cylinder 14 stretches out to drive the vacuum chuck 17 to adsorb the surface of the ball valve ball core 1, the ball valve ball core 1 is driven to ascend for a certain distance under the action of the hydraulic cylinder 14, then the rotating motor 16 is started, the rotation of an output shaft of the rotating motor 16 drives the vacuum chuck 17 to rotate 90 degrees, thereby driving the ball valve ball core 1 to rotate 90 degrees, and then the rotated ball valve ball core 1 is placed on the supporting cavity 18;
In the electroplating process, the circulating pump 20 sequentially pumps and circulates the electroplating solution in the electroplating tank body 3 and the supporting cavity 18 and the electroplating solution in the electroplating pool 2;
when it is necessary to add the plating solution to the reservoir 506, the piston head 508 is pulled out, and the plating solution is injected into the reservoir 506 through the inlet 507.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. A large ball valve, characterized in that: the ball valve comprises a ball valve core (1) and a valve casing (101) for installing the ball valve core (1), wherein shaft sleeves (102) positioned on the same vertical line are communicated and welded at the upper end and the lower end of the valve casing (101) through holes, and trunnion (103) for movably supporting the ball valve core (1) are fixedly sleeved on the inner wall of the shaft sleeve (102) positioned at the bottom of the valve casing (101);
The inner wall of the shaft sleeve (102) positioned at the top of the valve casing (101) is movably provided with a valve rod (104) fixedly connected with the ball core (1) of the ball valve, and the top of the shaft sleeve (102) positioned at the top of the valve casing (101) is fixedly provided with a speed reducer (105) for driving the valve rod (104) to rotate through bolts.
2. A large ball valve according to claim 1, wherein: the ball valve comprises a ball valve core (1) and a valve shell (101), wherein an O-shaped ring (106), a valve seat spring (107) and a valve seat ring (108) for sealing are sequentially arranged at the joint of the ball valve core (1) and the two ends of the valve shell (101) from outside to inside, so that the sealing action between the ball valve core (1) and the inner wall of the valve shell (101) during the rotation opening and closing is realized;
the bottom surface of valve casing (101) is fixed mounting has supporting seat (109), the top surface of valve casing (101) is fixed mounting has lug (1010) that are used for hoist and mount.
3. The electroplating process of the large ball valve ball core according to claim 1, wherein the electroplating process comprises the following steps: the method comprises the following steps:
S1, performing surface treatment, namely cleaning, degreasing and derusting the surface of a ball core (1) of the ball valve, wherein the cleaning and degreasing can be performed by alkaline or organic solvent cleaning, and the derusting can be performed by mechanical means or acid cleaning;
S2, electroplating a nickel bottom layer on the ball core (1) of the ball valve, wherein the electroplating solution of the nickel bottom layer is generally nickel sulfate electroplating solution or nickel chloride electroplating solution, and the electroplating solution is poured into the electroplating pool (2);
S3, conveying the ball core (1) of the ball valve after surface treatment into a plating bath body (3) of a plating bath (2), so that the bottom of the ball core (1) of the ball valve is soaked in plating solution for plating;
S4, driving the nozzles (4) which are symmetrically distributed on the two sides of the electroplating bath body (3) to enter the inner wall of the ball valve ball core (1) through the telescopic rotating mechanism, enabling the nozzles (4) to perform circular motion on the inner wall of the ball valve ball core (1), and enabling electroplating liquid sprayed out of the nozzles (4) to electroplate the inner wall of the ball valve ball core (1);
s5, clamping the inner wall of the ball valve ball core (1) through a clamping mechanism, so that the ball valve ball core (1) is driven to rotate, and the outer surface of the ball valve ball core (1) can be soaked and contacted with electroplating liquid;
The telescopic rotating mechanism comprises telescopic tables (5) which are symmetrically distributed on the two sides of the electroplating pool (2) front and back, telescopic air cylinders (501) are fixedly installed on the upper surfaces of the two telescopic tables (5), a first installation shell (502) and a second installation shell (503) are fixedly installed at one ends of the two telescopic air cylinders (501), and a first rotating sleeve (504) and a second rotating sleeve (505) are installed at one ends, far away from the telescopic air cylinders (501), of the first installation shell (502) and the second installation shell (503) through bearings respectively;
The clamping mechanism comprises rotating shafts (6) which are respectively arranged on the inner walls of the first rotating sleeve (504) and the second rotating sleeve (505) through bearings, connecting blocks (601) are fixedly sleeved on the surfaces of the four rotating shafts (6), and one ends, extending to the outside of the first rotating sleeve (504) or the second rotating sleeve (505), of the connecting blocks (601) are hinged with arc supporting plates (602) through pin shafts.
4. A process for electroplating a large ball valve spool according to claim 3, wherein: the electroplating bath comprises an electroplating bath body (3), wherein two supporting sleeves (7) are connected to the surface of the electroplating bath body (3) in a sliding clamping mode, one end of the supporting sleeves (7) away from the electroplating bath body (3) extends out of the electroplating bath (2), a limiting groove (8) is formed in the surface of the electroplating bath (2), the surface of the supporting sleeves (7) is connected with the inner wall of the limiting groove (8) in a sliding clamping mode, and the surfaces of a first rotating sleeve (504) and a second rotating sleeve (505) are connected with the inner walls of the supporting sleeves (7) in a sliding mode respectively.
5. The electroplating process of the large ball valve ball core according to claim 4, wherein the electroplating process is characterized in that: the inner walls of the first rotating sleeve (504) and the second rotating sleeve (505) are respectively fixedly provided with a first rotating rod (603) and a second rotating rod (604) through bearings, one ends of the first rotating rod (603) and the first rotating sleeve (504) which are far away from the first installation shell (502) are fixedly provided with magnetic clamping buckles (9), one ends of the second rotating rod (604) and the second rotating sleeve (505) which are far away from the second installation shell (503) are provided with magnetic clamping grooves (10), and the surfaces of the opposite sides of the first rotating sleeve (504) and the second rotating sleeve (505) and the surfaces of the opposite sides of the first rotating rod (603) and the second rotating rod (604) are respectively provided with sealing rings (11);
The inner walls of the first rotating sleeve (504) and the second rotating sleeve (505) are respectively provided with liquid storage tanks (506) in an up-down symmetrical distribution, one ends of a plurality of nozzles (4) are respectively distributed on the opposite side surfaces of the two liquid storage tanks (506) in a rectangular array through pipelines, liquid inlets (507) are respectively formed in one side surface of each of the four liquid storage tanks (506), the liquid inlets (507) extend to the outside of the first rotating sleeve (504) or the second rotating sleeve (505), and piston heads (508) are slidably inserted into the inner walls of the liquid inlets (507);
the inner wall of the second installation shell (503) is provided with a rotating motor (509), and one end of an output shaft of the rotating motor (509) is fixedly sleeved with one end, close to the second installation shell (503), of the second rotating sleeve (505).
6. A process for electroplating a large ball valve spool according to claim 3, wherein: the inner wall of the first installation shell (502) is fixedly provided with a servo motor (605), and one end of an output shaft of the servo motor (605) extends into the first rotating sleeve (504) and is fixedly sleeved with one end of the first rotating rod (603) close to the first installation shell (502).
7. A process for electroplating a large ball valve spool according to claim 3, wherein: the surfaces of the first rotating rod (603) and the second rotating rod (604) are fixedly sleeved with a driving gear (606), one end surface of each rotating shaft (6) close to the driving gear (606) is fixedly sleeved with a driven gear (607), and two sides of the outer surface of each driving gear (606) are respectively meshed with the surfaces of the two driven gears (607).
8. A process for electroplating a large ball valve spool according to claim 3, wherein: both ends of the arc supporting plate (602) are smooth arc-shaped, and one end hinged with the connecting block (601) is contacted with the inner wall of the ball core (1) of the ball valve.
9. A process for electroplating a large ball valve spool according to claim 3, wherein: the electroplating device is characterized in that self-driven sliding rails (12) are fixedly arranged on two sides of the upper surface of the electroplating tank (2), a concave supporting frame (13) is fixedly arranged on the upper surface of a sliding block of the self-driven sliding rails (12), a hydraulic cylinder (14) is arranged at the top of the concave supporting frame (13), a third installation shell (15) is fixedly arranged at one end of a piston rod of the hydraulic cylinder (14), a rotating motor (16) is fixedly arranged in the third installation shell (15), and a vacuum sucker (17) is arranged at one end of an output shaft of the rotating motor (16) through a bearing.
10. A process for electroplating a large ball valve spool according to claim 3, wherein: the bottom of plating bath body (3) is installed through the extension board the inside of electroplating bath (2), the bottom of plating bath body (3) is provided with the feed liquor hole, the inside of plating bath body (3) is provided with supports cavity (18), porous membrane (19) are installed to the inner wall of supporting cavity (18), circulation pump (20) are installed through the backup pad to the inner wall of electroplating bath (2), the liquid outlet end of circulation pump (20) pass through the pipeline with electroplating bath (2) intercommunication, the liquid absorbing end of circulation pump (20) is fixed to be linked together has three-way pipe (21) of Y shape, the both ends of three-way pipe (21) all extend to in plating bath body (3) and wherein one end extends to in supporting cavity (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311768523.6A CN117948437A (en) | 2023-12-21 | 2023-12-21 | Electroplating process for large ball valve and ball core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311768523.6A CN117948437A (en) | 2023-12-21 | 2023-12-21 | Electroplating process for large ball valve and ball core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117948437A true CN117948437A (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311768523.6A Pending CN117948437A (en) | 2023-12-21 | 2023-12-21 | Electroplating process for large ball valve and ball core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117948437A (en) |
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2023
- 2023-12-21 CN CN202311768523.6A patent/CN117948437A/en active Pending
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