CN111270282A - Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply - Google Patents
Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply Download PDFInfo
- Publication number
- CN111270282A CN111270282A CN202010243732.9A CN202010243732A CN111270282A CN 111270282 A CN111270282 A CN 111270282A CN 202010243732 A CN202010243732 A CN 202010243732A CN 111270282 A CN111270282 A CN 111270282A
- Authority
- CN
- China
- Prior art keywords
- steel wire
- centering
- self
- anode steel
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/04—Tubes; Rings; Hollow bodies
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/004—Sealing devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/10—Electrodes, e.g. composition, counter electrode
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/026—Electroplating of selected surface areas using locally applied jets of electrolyte
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
Abstract
The invention discloses a power supply and mobile chromium plating device for a single elongated pipe part with an independent power supply, which comprises an upper bracket, a lower bracket, an elongated pipe, an anode steel wire and an upper bracket lifting mechanism, wherein the upper bracket lifting mechanism is fixedly arranged on one side of the upper bracket and drives the upper bracket to move so as to clamp or loosen the elongated pipe; the anode steel wire tensioning mechanism is arranged below the lower bracket and used for clamping the anode steel wire; the independent power supply system is arranged beside the lower bracket, the anode is connected with the anode steel wire tensioning mechanism, and the cathode is connected with the lower bracket to provide independent power supply for the single slender pipe; the pipeline circulation system and the electroplating bath are arranged beside the upper bracket and the lower bracket and are used for connecting the upper bracket, the lower bracket and the electroplating bath to form an electroplating solution flowing circulation loop; the control system controls the up-and-down movement of the upper bracket lifting mechanism and the starting or stopping of the independent power supply system, the pipeline circulating system and the anode steel wire tensioning mechanism.
Description
Technical Field
The invention belongs to the technical field of mechanical devices for electroplating, and particularly relates to a power supply and mobile chromium plating device for a single slender pipe part with an independent power supply.
Background
The deep hole of a certain slender pipe needs to have extremely high abrasion resistance and ablation resistance when working in high-temperature, high-pressure and high-speed environments, and common metal materials are difficult to meet the working condition requirements. Chromium metal has been found to be the best material for wear resistance and ablation resistance. In order to meet the requirements of the working condition of the slender pipe, a layer of metal chromium is generally needed to be electroplated on the surface of the metal material.
The current situation is as follows: on one hand, when the surface of a deep hole of a long and thin pipe is plated with chromium, a hanger is generally provided with a power supply, a plurality of long and thin pipes are clamped on the hanger, and because the thickness of an anode steel wire, the thickness of a copper layer, the thickness of a lead layer and the like arranged on each long and thin pipe are different in manufacturing quality, and the difference of conductivity of other conductive parts of the hanger caused by various reasons and the like, the current distributed to each long and thin pipe on each hanger is different, so that the difference of the deposition rate of the chromium plating on the inner wall of the deep hole of each long and thin pipe is caused, the thickness of each chromium plating layer is different, the qualified rate of the chromium plating is greatly reduced, and the chromium plating quality.
On the other hand, when a slender pipe is chromed, the whole slender pipe is generally soaked in a chromed solution, no special solution flowing device is arranged, and the chromed method is generally called as immersion chromed. When the inner wall of the deep small hole of the slender pipe is plated with the immersion type chromium plating, the electroplating solution in the deep small hole mainly drives the solution to circularly flow by the hydrogen and oxygen generated by the side reaction, and timely supplements the consumed and diluted part. The method ensures that the circulation speed of the electroplating solution in the deep small hole is low, the electrolyte which is consumed and diluted is difficult to replenish in time, and a large amount of gas which is gradually generated in the deep small hole from bottom to top in the electroplating solution seriously causes the solution resistance to gradually increase in a gradient manner from bottom to top in the electroplating process, and simultaneously influences the distribution of the polarization resistance. The phenomenon directly causes the current density of the inner wall of the deep small hole to be reduced from bottom to top, causes the metal chromium deposition rate to be reduced from bottom to top, and causes the phenomenon that the thickness distribution of the chromium coating of the slender pipe from bottom to top is not uniform, mainly manifested as thicker chromium coating at the lower end and thinner upper end, and also has the phenomena of thin chromium coating at the middle part, thick two ends and the like caused by the problems of poorer gas discharge effect in the deep small hole and the like caused by the deflection of a hanger.
The thickness uniformity of the chromium coating on the inner wall of the deep small hole of the slender pipe is greatly influenced due to the series of reasons, the qualified rate of chromium coating is greatly reduced, and the service performance of the product is seriously influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a power supply and flowing chromium plating device for a slender pipe part by a single independent power supply, the device has a simple structure, is convenient to operate and is convenient to implement automatic production, an anode steel wire and a slender pipe have a self-centering function in the process of clamping and mounting, the eccentricity of the anode steel wire in an inner hole of the slender pipe is avoided, the single slender pipe is provided with the independent power supply for power supply, the phenomenon of uneven current distribution is avoided, the circulating flow of chromium plating solution is accelerated by adopting a special flowing chromium plating device, and the uniform consistency of the resistance of solutions at different depths in the slender pipe is improved.
The purpose of the invention is realized as follows:
a slender pipe part is provided with an independent power supply for power supply and a mobile chromium plating device in a single piece mode, and the device comprises an upper support, a lower support, an upper support lifting mechanism and a lower support, wherein the upper support and the lower support are placed vertically, a slender pipe is clamped between the upper support and the lower support, anode steel wires penetrate through central holes of the upper support, the lower support and the slender pipe, the upper support lifting mechanism is fixedly installed on one side of the upper support and used for driving the upper support to move up and down, and the slender pipe is clamped or loosened so that the axis of the slender pipe is coaxial with the; the anode steel wire tensioning mechanism is arranged below the lower support and used for clamping the anode steel wire and enabling the anode steel wire to have a self-centering effect, and the lower end of the anode steel wire extends into a central hole of the anode steel wire tensioning mechanism; the independent power supply system is arranged beside the lower bracket, the positive pole of the power supply is connected with the anode steel wire tensioning mechanism through an anode lead, and the negative pole of the power supply is connected with the lower bracket through a cathode lead to provide independent power supply for the single slender pipe; the electroplating bath is internally contained with electroplating solution, and the pipeline circulating system is used for connecting the upper bracket, the lower bracket and the electroplating bath, enabling the electroplating solution in the electroplating bath to enter from the lower bracket, upwards inject into the slender pipe, flow out from the upper bracket and return into the electroplating bath to form a flowing circulating loop; and the control system is respectively electrically connected with the upper bracket lifting mechanism, the independent power supply system, the pipeline circulating system and the anode steel wire tensioning mechanism and is used for controlling the upper bracket lifting mechanism to move up and down and controlling the independent power supply system, the pipeline circulating system and the anode steel wire tensioning mechanism to start or stop.
Further, the upper bracket comprises an upper bracket body, an upper bracket stop block arranged below the upper bracket body, and an anode steel wire self-centering insulating plug, a sealing washer a and an upper self-centering elastic jacket which are sequentially arranged in the upper bracket body from top to bottom, wherein the center of the upper bracket body is vertically provided with an upper chamber and a lower chamber, the upper chamber is used for accommodating the anode steel wire self-centering insulating plug, limiting the anode steel wire and ensuring the self-centering of the anode steel wire, the lower chamber is internally provided with the sealing washer a and the upper self-centering elastic jacket, the upper self-centering elastic jacket is radially opened or tightened under the action of clamping force, clamping or loosening the slender pipe and limiting one end of the slender pipe, so that the axis of the slender pipe is coaxial with the axis of the anode steel wire, an L-shaped channel is arranged between the upper chamber and the lower chamber and is used for electroplating solution to circularly flow from bottom to top, the upper support stop block is used for limiting the downward movement stroke of the upper self-centering elastic jacket and avoiding falling off when the slender pipe is assembled and disassembled.
Further, the lower support comprises a lower support body, a lower support stop block arranged above the lower support body, and a lower self-centering elastic jacket, a sealing washer b, an anode steel wire lower insulating plug, a sealing washer c and an insulating material compression screw which are sequentially arranged in the lower support body from top to bottom, wherein an upper chamber and a lower chamber are vertically arranged at the center of the lower support body, the upper chamber is used for accommodating the lower self-centering elastic jacket and the sealing washer b, the lower self-centering elastic jacket is used for clamping or loosening the slender pipe and limiting the other end of the slender pipe so that the axis of the slender pipe is coaxial with the axis of the anode steel wire, the sealing washer b is used for preventing electroplating solution from leaking, the anode steel wire lower insulating plug, the sealing washer c and the insulating material compression screw are accommodated in the lower chamber to jointly form the insulation and sealing functions and form the guide for the assembly, a cross-shaped passage is communicated between the upper cavity and the lower cavity and used for electroplating solution to circularly flow from bottom to top, one end of the cross-shaped passage extends to the side wall of the lower support body and is connected with a pipeline circulating system, and the lower support stop block is used for limiting the upward movement stroke of the lower self-centering elastic jacket and preventing the lower self-centering elastic jacket from being pulled out and falling in the loading and unloading process.
Further, pipeline circulation system includes inlet channel, flowing back pipeline, water pump, solenoid valve and flowmeter, inlet channel and the cross access connection of lower carriage body, the L type access connection of flowing back pipeline and upper bracket body, the water pump sets up in the plating bath for take the plating solution out from the plating bath and send into inlet channel, solenoid valve and flowmeter set up on inlet channel, and the solenoid valve is used for opening or closing and supplies liquid/flowing back, and the flowmeter is used for controlling the plating solution flow size, pours into the elongated tube hole into with the plating solution from bottom to top through inlet channel to upwards flow by the flowing back pipeline, circulate to the plating bath in.
Further, positive pole steel wire straining device is including from the centering chuck with set up in the pneumatic cylinder of the connection chuck of self-centering chuck below, be used for centre gripping positive pole steel wire from the centering chuck to make the positive pole steel wire have from the centering effect, the pneumatic cylinder makes from the centering chuck drive positive pole steel wire and straighten, take-up with the positive pole steel wire through pneumatic cylinder piston motion.
Furthermore, a metal gasket and a sealing ring are tightly matched in a central hole of the upper self-centering elastic jacket, the sealing ring is sleeved at the lower end of the metal gasket, the inner hole diameter of the metal gasket is consistent with the inner hole diameter of the slender tube, so that electric field lines in holes at two ends of the slender tube are kept consistent with the inner hole state during electroplating, and the sealing ring is used for sealing and preventing electroplating solution from leaking.
Further, the last cavity of upper bracket body is circle cone structure down, from centering insulation plug cooperation with the positive pole steel wire, the positive pole steel wire is from centering insulation plug to the positive pole steel wire assembly down direction and from centering, and the lower cavity bottom of upper bracket body is equipped with the bell mouth, and from centering elastic jacket's circular cone portion cooperation on with, form from centering.
Furthermore, a metal gasket and a sealing ring are tightly matched in a central hole of the lower self-centering elastic jacket, the sealing ring is sleeved at the upper end of the metal gasket, the inner hole diameter of the metal gasket is consistent with the inner hole diameter of the slender tube, so that electric field lines in holes at two ends of the slender tube are kept consistent with the inner hole state during electroplating, and the sealing ring is used for sealing and preventing electroplating solution from leaking.
Furthermore, the top of the upper cavity of the lower support body is provided with a conical hole which is matched with the conical part of the lower self-centering elastic jacket to form self-centering, the upper part of the lower insulating plug of the anode steel wire is provided with the conical hole to guide the downward assembly of the anode steel wire, and the center of the inner part of the lower support body is provided with a through hole which is matched with the anode steel wire.
Furthermore, the upper end of the anode steel wire is arranged to be a conical head, and a taper hole matched with the conical head of the anode steel wire is axially formed in the top of the anode steel wire self-centering insulating plug, so that self-centering is formed when the anode steel wire is assembled downwards.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the invention has simple structure, convenient use and reliable positioning, has automatic operation conditions, and the anode steel wire and the slender tube have self-centering function in the process of clamping and mounting, thereby avoiding the eccentricity of the anode steel wire in the inner hole of the slender tube and reducing the non-uniformity of the thickness of the chromium plating layer on the inner wall of the slender tube along the circumferential direction;
2. the power supply mode of the single slender tube matched with the independent power supply avoids the phenomenon of uneven current distribution among different workpieces caused by the fact that a plurality of slender tubes are matched with one power supply for power supply in the prior art;
3. by adopting the special flowing chromium plating device, the electroplating solution in the inner hole of the slender pipe can flow circularly in time in a flowing chromium plating mode, the flowing speed of the electroplating solution is accelerated, the gas generated by side reaction is taken away in time, the resistance drop generated from top to bottom of the electroplating solution in the inner hole of the slender pipe is reduced, the current uniformity of each part of the deep hole is improved, and the diameter cone difference of two ends of the inner hole after chromium plating is reduced;
4. the closed pipeline circulating system prevents chromium fog generated in the electroplating process from diffusing into the environment, and avoids corrosion and pollution to the environment;
5. greatly improves the processing quality and the service performance of the product, and has higher economic benefit and social value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the upper bracket structure of the present invention;
FIG. 3 is a schematic view of the lower bracket structure of the present invention;
FIG. 4 is a schematic structural view of an anode wire tensioning mechanism of the present invention;
FIG. 5 is a schematic view of the upper self-centering resilient collet configuration of the present invention;
reference numerals
In the attached drawings, 1 is an upper bracket lifting mechanism, 2 is an upper bracket, 3 is a slender pipe (workpiece), 4 is an anode steel wire, 5 is a lower bracket, 6 is an anode steel wire tensioning mechanism, 7 is an independent power supply system, 8 is electroplating solution, 9 is an electroplating bath, 10 is a pipeline circulating system, and 11 is a control system
21 is an upper bracket body; 22 is an L-shaped channel; 23 is a sealing gasket a; 24 is an upper self-centering elastic jacket; 25 is an upper bracket stop block; 26 is an anode steel wire self-centering insulating plug;
41 is a conical head;
51 is a lower bracket stop block, 52 is a lower bracket body, 53 is an anode steel wire lower insulation plug, 54 is a sealing washer c, 55 is an insulation material compression screw, 56 is a lower self-centering elastic jacket, 57 is a sealing washer b, and 58 is a cross-shaped channel;
a self-centering chuck 61, a hydraulic cylinder 62 and a hydraulic cylinder piston 63;
71 is an anode lead, and 72 is a cathode lead;
10-1 is a liquid inlet pipeline, 10-2 is a liquid discharge pipeline, 10-3 is a water pump, 10-4 is an electromagnetic valve, and 10-5 is a flowmeter;
21-1 is a tapered hole of a lower chamber of the upper bracket body
24-1 is a sealing ring, 24-2 is an upper self-centering elastic jacket conical part, and 24-3 is a metal gasket;
52-1 is a tapered hole of the upper chamber of the lower bracket body;
53-1 is a conical hole of the insulating plug under the anode steel wire.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-5, a slender pipe part single piece independent power supply and flowing chromium plating device, used for carrying on the chromium plating to the inner wall of the slender pipe deep hole, including upper bracket 2 and lower carriage 5, said upper bracket 2 and lower carriage 5 are placed along vertical, clamp the slender pipe 3 between upper bracket 2 and lower carriage 5, said upper bracket 2, lower carriage 5 and centre bore of the slender pipe 3 wear and have the steel wire 4 of positive pole, during chromium plating, upper bracket 2 and lower carriage 5 are fitted together with both ends of the slender pipe 3 through the hole axle fit way separately, ensure the slender pipe 3 is clamped and held and put the state vertically on the chromium plating device, make the plating solution can be filled up in the slender pipe 3 bore evenly, and can flow from bottom to top along the slender pipe 3 bore, circulate and supplement the plating solution consumed and discharge hydrogen and oxygen that produce in the electroplating process in time;
the chromium plating device also comprises an upper bracket lifting mechanism 1 which is fixedly arranged on one side of the upper bracket 2, the upper bracket lifting mechanism 1 is controlled by a control system 11 to drive the upper bracket 2 to move up and down, so that an upper self-centering elastic jacket 24 in the upper bracket 2 can move up and down manually or automatically, the functions of clamping and clamping slender pipes 3 are realized, and the axis of the slender pipes 3 is coaxial with the axis of the anode steel wire 4;
as shown in fig. 4, the anode steel wire tensioning mechanism 6 is disposed below the lower bracket 5, and is used for clamping the anode steel wire 4 and enabling the anode steel wire 4 to have a self-centering effect, and a lower end of the anode steel wire 4 extends into a central hole of the anode steel wire tensioning mechanism 6; as shown in fig. 4, the anode wire tensioning mechanism 6 comprises a self-centering chuck 61 and a chuck-connecting hydraulic cylinder 62 arranged below the self-centering chuck 51, the self-centering chuck 61 is used for clamping the anode wire 4 and enabling the anode wire 4 to have a self-centering effect, and the hydraulic cylinder 62 enables the self-centering chuck 61 to drive the anode wire 4 through the pushing and pulling effect of a hydraulic cylinder piston 63, so as to straighten and tension the anode wire 4.
An independent power supply system 7, namely, each slender tube is provided with an independent power supply, the system is arranged beside the lower bracket 5, the positive pole of the power supply is connected with the anode wire tensioning mechanism 6 through an anode lead 71, and the negative pole of the power supply is connected with the lower bracket 5 through a cathode lead 72, so as to provide independent power supply for the single slender tube;
the pipeline circulating system 10 and the electroplating bath 9 are arranged beside the upper bracket 2 and the lower bracket 5, the electroplating bath 9 contains the electroplating solution 8, the pipeline circulating system 10 is used for connecting the upper bracket 2, the lower bracket 5 and the electroplating bath 9, the electroplating solution 8 in the electroplating bath 9 enters from the lower bracket 5, is injected into the slender pipe 3 upwards, flows out from the upper bracket 2 and returns to the electroplating bath 9, and a flowing circulating loop is formed;
and the control system 11 is electrically connected with the upper bracket lifting mechanism 1, the independent power supply system 7, the pipeline circulating system 10 and the anode steel wire tensioning mechanism 6 respectively and is used for controlling the up-and-down movement of the upper bracket lifting mechanism 1 and the starting or stopping of the independent power supply system 7, the pipeline circulating system 10 and the anode steel wire tensioning mechanism 6.
As shown in fig. 2 and 5, in this embodiment, the upper bracket 2 includes an upper bracket body 21, an upper bracket stopper 25 fixedly connected below the upper bracket body 21, and an anode wire self-centering insulating plug 26, a sealing gasket a23 and an upper self-centering elastic jacket 24 sequentially disposed from top to bottom in the upper bracket body 21, an upper chamber and a lower chamber are vertically disposed at the center of the upper bracket body 21, the upper chamber is used for accommodating the anode wire self-centering insulating plug 26, limiting the anode wire 4 and ensuring the anode wire self-centering, the lower chamber is used for accommodating the sealing gasket a23 and the upper self-centering elastic jacket 24, the upper self-centering elastic jacket 24 radially opens or contracts under the clamping force, clamps or releases the elongated tube 3 and limits one end of the elongated tube 3, so that the axis of the elongated tube 3 is coaxial with the axis of the anode wire 4, an L-shaped channel 22 is disposed between the upper chamber and the lower chamber, the electroplating solution circulation device is used for the electroplating solution 8 to circularly flow from bottom to top, one end of an L-shaped channel 22 extends to the side wall of an upper support body 21 and is connected with a pipeline circulation system 10, an upper support stop 25 is used for limiting the downward movement stroke of an upper self-centering elastic jacket 24 and avoiding falling off when a slender tube is assembled and disassembled, an upper cavity of the upper support body 21 is of an upper round and lower conical structure and is matched with an anode steel wire self-centering insulating plug 26, the anode steel wire self-centering insulating plug 26 guides and self-centers the downward assembly of an anode steel wire 4, a metal gasket 24-3 and a sealing ring 24-1 are tightly matched in a central hole of the upper self-centering elastic jacket 24, the sealing ring 24-1 is sleeved at the lower end of the metal gasket 24-3, the inner hole diameter of the metal gasket 24-3 is consistent with the inner hole diameter of the slender tube, the sealing ring 24-1 is used for sealing and preventing electroplating solution from leaking, and the bottom of the lower chamber of the upper bracket body 21 is provided with a tapered hole 21-1 which is matched with a tapered part 24-2 of the upper self-centering elastic jacket to form self-centering.
As shown in fig. 3, in this embodiment, the lower bracket 5 includes a lower bracket body 52, a lower bracket stopper 51 disposed above the lower bracket body 52, and a lower self-centering elastic jacket 56, a sealing washer b57, an anode wire lower insulating plug 53, a sealing washer c54 and an insulating material pressing screw 55 disposed in the lower bracket body 52 from top to bottom, the lower bracket body 52 is vertically provided at a center thereof with an upper chamber and a lower chamber, the upper chamber is used for accommodating the lower self-centering elastic jacket 56 and the sealing washer b57, the lower self-centering elastic jacket 56 is used for clamping or releasing the elongated tube 3 and limiting the other end of the elongated tube so that the axis of the elongated tube 3 is coaxial with the axis of the anode wire 4, the sealing washer b57 is used for preventing the leakage of the electroplating solution 8, and the lower chamber is used for accommodating the anode wire lower insulating plug 53, the sealing washer c54 and the insulating material pressing, the three components jointly play roles of insulation and sealing, and assemble the anode steel wire 4 to form guidance, a cross-shaped passage 58 is penetrated between the upper chamber and the lower chamber and is used for the electroplating solution 8 to circularly flow from bottom to top, one end of the cross-shaped passage 58 extends to the side wall of the lower bracket body 52 and is connected with the pipeline circulating system 10, the lower bracket stop block 51 is used for limiting the upward movement stroke of the lower self-centering elastic jacket 56 and preventing the lower self-centering elastic jacket from being pulled out and falling off in the assembling and disassembling process, the top of the upper chamber of the lower bracket body 52 is provided with a tapered hole 52-1 which is matched with the tapered part of the lower self-centering elastic jacket 56 to form self-centering, the upper part of the anode steel wire lower insulation plug 53 is provided with a tapered hole 53-1 which guides the downward assembly of the anode steel wire 4, the inner center is provided with a through hole which is matched with the anode steel wire 4, and a metal gasket 24-3 and a, the sealing ring 24-1 is sleeved at the upper end of the metal gasket 24-3, the diameter of an inner hole of the metal gasket 24-3 is consistent with that of the inner hole of the slender tube 3, so that electric field lines in the inner holes at two ends of the slender tube are kept consistent with the inner hole state during electroplating, and the sealing ring 24-1 is used for sealing and preventing electroplating solution from leaking.
The pipeline circulating system 10 comprises a liquid inlet pipeline 10-1, a liquid discharge pipeline 10-2, a water pump 10-3, an electromagnetic valve 10-4 and a flowmeter 10-5, wherein the liquid inlet pipeline 10-1 is connected with a cross-shaped channel 58 of the lower bracket body, the liquid discharge pipeline 10-2 is connected with an L-shaped channel 22 of the upper bracket body, the water pump 10-3 is arranged in the electroplating bath 9 and used for pumping the electroplating solution 8 out of the electroplating bath 9 and feeding the electroplating solution into the liquid inlet pipeline 10-1, the electromagnetic valve 10-4 and the flowmeter 10-5 are arranged on the liquid inlet pipeline 10-1, the electromagnetic valve 10-4 is used for opening or closing the liquid supply/discharge, the flowmeter 10-5 is used for controlling the flow of the electroplating solution 8, and the electroplating solution 8 is injected into the inner hole of the slender pipe 3 from, and flows upwards from a drain pipe 10-2 to circulate to the electroplating bath 9.
The slender tube 3 is a cylindrical slender tube part and is a workpiece to be electroplated by the device.
The anode steel wire 4 is a cylindrical anode with a surface layer made of inert metal materials and is prevented from being dissolved under the action of current, the upper end of the anode steel wire is provided with a conical head 41, and the top of the anode steel wire self-centering insulating plug 26 is axially provided with a conical hole matched with the conical head 41 of the anode steel wire, so that self-centering is formed when the anode steel wire 4 is assembled downwards.
The chromium plating device has simple structure, convenient operation and convenient implementation of automatic production, wherein the power supply mode of the independent power supply matched with the single slender tube avoids the phenomenon of uneven current distribution among different workpieces caused by the fact that a plurality of slender tubes are matched with one power supply for power supply; the special flowing chromium plating device is adopted, so that the circulating flow of chromium plating solution is accelerated, the uniformity of the resistance of the solution at different depths in the slender pipe is improved, the important measures for ensuring the uniformity of the current density, the current efficiency and the metal chromium deposition rate of all parts of the inner wall of the slender pipe deep hole are taken, the plating solution circulates in a closed pipeline in the whole electroplating process, chromium fog is prevented from being diffused into the air, the environmental pollution is reduced, and the environment-friendly capacity is improved.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a slender pipe part singleton is joined in marriage independent power supply and is flowed chromium plating device, includes upper bracket and lower carriage, upper bracket and lower carriage are along vertical the placing, and the centre gripping has the slender pipe between upper bracket, the lower carriage, wear to be equipped with the anode steel wire in the centre bore of upper bracket, lower carriage and slender pipe, its characterized in that: also comprises
The upper bracket lifting mechanism is fixedly arranged on one side of the upper bracket and is used for driving the upper bracket to move up and down and clamping or loosening the slender pipe so that the axis of the slender pipe is coaxial with the axis of the anode steel wire;
the anode steel wire tensioning mechanism is arranged below the lower support and used for clamping the anode steel wire and enabling the anode steel wire to have a self-centering effect, and the lower end of the anode steel wire extends into a central hole of the anode steel wire tensioning mechanism;
the independent power supply system is arranged beside the lower bracket, the positive pole of the power supply is connected with the anode steel wire tensioning mechanism through an anode lead, and the negative pole of the power supply is connected with the lower bracket through a cathode lead to provide independent power supply for the single slender pipe;
the electroplating bath is internally contained with electroplating solution, and the pipeline circulating system is used for connecting the upper bracket, the lower bracket and the electroplating bath, enabling the electroplating solution in the electroplating bath to enter from the lower bracket, upwards inject into the slender pipe, flow out from the upper bracket and return into the electroplating bath to form a flowing circulating loop;
and the control system is respectively electrically connected with the upper bracket lifting mechanism, the independent power supply system, the pipeline circulating system and the anode steel wire tensioning mechanism and is used for controlling the upper bracket lifting mechanism to move up and down and controlling the independent power supply system, the pipeline circulating system and the anode steel wire tensioning mechanism to start or stop.
2. The elongated tubular member with its single piece independent power supply and ambulatory chrome plating device of claim 1, wherein: the upper bracket comprises an upper bracket body, an upper bracket stop block arranged below the upper bracket body, and an anode steel wire self-centering insulating plug, a sealing washer a and an upper self-centering elastic jacket which are sequentially arranged in the upper bracket body from top to bottom, wherein the center of the upper bracket body is vertically provided with an upper chamber and a lower chamber, the upper chamber is used for accommodating the anode steel wire self-centering insulating plug, limiting the anode steel wire and ensuring the self-centering of the anode steel wire, the lower chamber is internally provided with the sealing washer a and the upper self-centering elastic jacket, the upper self-centering elastic jacket is radially opened or tightened under the action of clamping force, clamping or loosening the slender pipe and limiting one end of the slender pipe, so that the axis of the slender pipe is coaxial with the axis of the anode steel wire, an L-shaped channel is arranged between the upper chamber and the lower chamber and is used for the electroplating solution to circularly flow from bottom, the upper support stop block is used for limiting the downward movement stroke of the upper self-centering elastic jacket and avoiding falling off when the slender pipe is assembled and disassembled.
3. An elongated tube member with a single independent power supply and a mobile chrome plating apparatus as claimed in claim 2, wherein: the lower support comprises a lower support body, a lower support stop block arranged above the lower support body, and a lower self-centering elastic jacket, a sealing washer b, an anode steel wire lower insulating plug, a sealing washer c and an insulating material compression screw which are sequentially arranged in the lower support body from top to bottom, wherein an upper chamber and a lower chamber are vertically arranged at the center of the lower support body, the upper chamber is used for accommodating the lower self-centering elastic jacket and the sealing washer b, the lower self-centering elastic jacket is used for clamping or loosening the slender pipe and limiting the other end of the slender pipe, so that the axis of the slender pipe is coaxial with the axis of the anode steel wire, the sealing washer b is used for preventing electroplating solution from leaking, the anode steel wire lower insulating plug, the sealing washer c and the insulating material compression screw are accommodated in the lower chamber to jointly form insulation and sealing functions and form guide for assembling the anode steel wire, and a cross-shaped passage is communicated between, the electroplating solution circulating device is used for circulating flowing of electroplating solution from bottom to top, one end of the cross-shaped channel extends to the side wall of the lower support body and is connected with the pipeline circulating system, and the lower support stop block is used for limiting the upward movement stroke of the lower self-centering elastic jacket and preventing the lower self-centering elastic jacket from being pulled out and falling in the loading and unloading process.
4. An elongated tubular member with a single independent power supply and a mobile chrome plating apparatus as claimed in claim 3, wherein: pipeline circulation system includes inlet channel, drain line, water pump, solenoid valve and flowmeter, inlet channel and the cross access connection of lower carriage body, the L type access connection of drain line and upper bracket body, the water pump sets up in the plating bath for take the plating solution out from the plating bath and send into inlet channel, solenoid valve and flowmeter set up on inlet channel, and the solenoid valve is used for opening or closing and supplies liquid/flowing back, and the flowmeter is used for controlling electroplating liquid flow size, pours into the plating solution into the slim pipe inner bore from bottom to top through inlet channel to upwards flow by drain line, circulate to the plating bath in.
5. An elongated tubular member with a single, independent power supply and ambulatory chrome plating apparatus as claimed in claim 1, wherein: the anode steel wire tensioning mechanism comprises a self-centering chuck and a hydraulic cylinder arranged below the self-centering chuck and connected with the chuck, the self-centering chuck is used for clamping an anode steel wire, the anode steel wire is enabled to have a self-centering effect, and the hydraulic cylinder enables the self-centering chuck to drive the anode steel wire through piston movement of the hydraulic cylinder and straightens and tensions the anode steel wire.
6. An elongated tube member with a single independent power supply and a mobile chrome plating apparatus as claimed in claim 2, wherein: the upper self-centering elastic jacket is internally and tightly matched with a metal gasket and a sealing ring in a central hole, the sealing ring is sleeved at the lower end of the metal gasket, the inner hole diameter of the metal gasket is consistent with that of the elongated tube, so that electric field lines in holes at two ends of the elongated tube are kept consistent with the inner hole state during electroplating, and the sealing ring is used for sealing and preventing electroplating solution from leaking.
7. The self-centering clamping cap for deep-hole inner wall chromium plating of an elongated tube according to claim 2, wherein: the upper chamber of upper bracket body is last circle toper structure down, from centering insulating plug cooperation with the positive pole steel wire, the positive pole steel wire is from centering insulating plug to positive pole steel wire assembly down direction and from centering, and the lower chamber bottom of upper bracket body is equipped with the bell mouth, and from centering elastic jacket's circular cone portion cooperation on with, form from centering.
8. An elongated tubular member with a single independent power supply and a mobile chrome plating apparatus as claimed in claim 3, wherein: the lower self-centering elastic jacket is internally and tightly matched with a metal gasket and a sealing ring in a central hole, the sealing ring is sleeved at the upper end of the metal gasket, the inner hole diameter of the metal gasket is consistent with that of the slender tube, so that electric field lines in holes at two ends of the slender tube are kept consistent with the inner hole state during electroplating, and the sealing ring is used for sealing and preventing electroplating solution from leaking.
9. An elongated tubular member with a single independent power supply and a mobile chrome plating apparatus as claimed in claim 3, wherein: the top of the upper cavity of the lower support body is provided with a conical hole which is matched with a conical part of a lower self-centering elastic jacket to form self-centering, the upper part of the anode steel wire lower insulating plug is provided with the conical hole to guide downward assembly of the anode steel wire, and the center of the inside of the lower support body is provided with a through hole which is matched with the anode steel wire.
10. The self-centering clamping cap for deep-hole inner wall chromium plating of an elongated tube according to claim 2, wherein: the upper end of the anode steel wire is arranged to be a conical head, and a taper hole matched with the conical head of the anode steel wire is axially formed in the top of the anode steel wire self-centering insulating plug, so that self-centering is formed when the anode steel wire is assembled downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243732.9A CN111270282A (en) | 2020-03-31 | 2020-03-31 | Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243732.9A CN111270282A (en) | 2020-03-31 | 2020-03-31 | Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111270282A true CN111270282A (en) | 2020-06-12 |
Family
ID=70996206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010243732.9A Pending CN111270282A (en) | 2020-03-31 | 2020-03-31 | Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111270282A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112522748A (en) * | 2020-11-23 | 2021-03-19 | 北京科技大学 | Automatic continuous flow electroplating device and method for inner wall of pipe fitting |
| CN112522746A (en) * | 2020-11-23 | 2021-03-19 | 北京科技大学 | Method for electroplating trivalent thick chromium coating on inner wall of pipe with large length-diameter ratio |
| CN113186584A (en) * | 2021-04-27 | 2021-07-30 | 中国工程物理研究院核物理与化学研究所 | Small pipe outer wall electroplating device |
| CN115747905A (en) * | 2023-01-08 | 2023-03-07 | 河南科技学院 | Plating device and plating method for automatically positioning inner wall of metal pipeline |
-
2020
- 2020-03-31 CN CN202010243732.9A patent/CN111270282A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112522748A (en) * | 2020-11-23 | 2021-03-19 | 北京科技大学 | Automatic continuous flow electroplating device and method for inner wall of pipe fitting |
| CN112522746A (en) * | 2020-11-23 | 2021-03-19 | 北京科技大学 | Method for electroplating trivalent thick chromium coating on inner wall of pipe with large length-diameter ratio |
| CN112522748B (en) * | 2020-11-23 | 2021-10-15 | 北京科技大学 | Automatic continuous flow electroplating device and method for inner wall of pipe fitting |
| CN113186584A (en) * | 2021-04-27 | 2021-07-30 | 中国工程物理研究院核物理与化学研究所 | Small pipe outer wall electroplating device |
| CN115747905A (en) * | 2023-01-08 | 2023-03-07 | 河南科技学院 | Plating device and plating method for automatically positioning inner wall of metal pipeline |
| CN115747905B (en) * | 2023-01-08 | 2023-03-31 | 河南科技学院 | Plating device and plating method for automatically positioning inner wall of metal pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111270282A (en) | Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply | |
| CN102330136B (en) | Auxiliary cathode and method for carrying out anodic oxidation on blind hole by using same | |
| CN111441073A (en) | Plating cavity capable of improving uniformity of Ni-SiC composite plating layer on inner wall of hollow part | |
| CN212051687U (en) | Power supply and mobile chromium plating device for single piece of slender pipe part with independent power supply | |
| CN211734520U (en) | Circulating electroplating system of cylinder body | |
| CN114043021A (en) | Electrolytic machining device for grooves in pipe fittings | |
| CN206858678U (en) | A kind of anode assembly for the reducer pipe inner bore of part chromium plating of big L/D ratio end | |
| CN114411230A (en) | Electroplating device and electroplating method for pipe fitting | |
| CN210176989U (en) | Electroplating device for inner hole of pipe fitting | |
| CN201198498Y (en) | Apparatus for shielding non-electroplating part of metal workpiece | |
| CN108468074A (en) | Crystallizer copper pipe stream plating appts | |
| CN220503260U (en) | Electroplating equipment suitable for special purpose of hole and deep hole | |
| CN110257884B (en) | Electroplating device and electroplating method for inner hole of pipe fitting | |
| CN211734517U (en) | Universal clamping device for circular electroplating of cylinder body | |
| CN110760909B (en) | Universal tool for electroplating outside cylinder groove | |
| CN203625509U (en) | Solution plating device for inner hole of long and thin pipe fitting | |
| CN217922395U (en) | Anode movable chromium plating device for deep hole inner wall of slender pipe | |
| CN106637322B (en) | A kind of semi-conductor silicon chip microdot electroplating bath | |
| CN111304710A (en) | Multi-channel jet electrodeposition device | |
| CN217203022U (en) | Electroplating device for improving electroplating uniformity | |
| CN110760908B (en) | A before plating processing apparatus for cylinder body is electroplated | |
| CN100582314C (en) | Polish-plating machine | |
| CN212688224U (en) | High-flux electrochemical synthesis and test all-in-one machine | |
| CN217809770U (en) | Device for adding magnesium sulfate heptahydrate into plating solution tank | |
| CN211814688U (en) | Hanging tool for electroforming metal capillary |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |