CN111206274A - Electroplating system for revolving body workpiece - Google Patents
Electroplating system for revolving body workpiece Download PDFInfo
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- CN111206274A CN111206274A CN201811394760.XA CN201811394760A CN111206274A CN 111206274 A CN111206274 A CN 111206274A CN 201811394760 A CN201811394760 A CN 201811394760A CN 111206274 A CN111206274 A CN 111206274A
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- pneumatic
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- electroplating
- air pipe
- rotary body
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The application discloses electroplating system for solid of revolution work piece, including the plating bath, be provided with the negative pole in the plating bath, be provided with pneumatic rotary device on the negative pole, pneumatic rotary device hangs in the lower part and treats the plating work piece, pneumatic rotary device passes through the trachea and links to each other with pneumatic trigeminy piece. The workpiece to be plated rotates under the combined action of the air pipe, the pneumatic triple piece and the pneumatic rotating device, and a uniform film layer is electroplated on the outer surface. The number of the cathode rods is 2. The power lines are uniformly distributed, and the part qualification rate and the working efficiency are improved. The device has the advantages of wide range of the weight of the bearing workpiece, improved universality, improved electroplating quality and efficiency, cost saving and simple operation.
Description
Technical Field
The application belongs to the field of machining, and particularly relates to an electroplating system for a revolving body workpiece.
Background
Electroplating is a process of plating a layer of metal or alloy on the surface of some metals by using the principle of electrolysis, and a layer of metal film is attached to the surface of a metal or other material workpiece by using the action of electrolysis, so that the effects of preventing metal oxidation, improving wear resistance, conductivity, light reflection, corrosion resistance, improving appearance and the like are achieved.
At present, in an electroplating workshop, a conventional hanger suitable for electroplating various common parts is generally available, however, in the field of the aviation industry, for a part with a specific shape, such as a revolving body workpiece, the part is placed in an existing electrolytic tank, and when the existing conventional hanger is used for plating the part, due to the uneven distribution of power lines, the limitation of the existing tank body and production line and the like, the surface plating layer of the part is oval, namely the plating layer close to the anode side is thick, and the plating layer far away from the anode is thin, so that the surface plating layer of the excircle of the part is uneven. Particularly, for chromium-plated parts, after the chromium plating is enlarged, if the plating layer is distributed in an oval shape, a part matrix can be ground in the subsequent grinding process, the size of the part is influenced, and the part is scrapped. This not only seriously influences the production schedule, but also wastes a large amount of manpower and material resources, so that the production cost of the parts is greatly increased.
In the prior art, the following two approaches are generally adopted: firstly, the pictographic anode is adopted to make the electric lines of force in the solution more uniformly distributed, thereby improving the uniformity of the electroplating layer. However, the technology needs to design and manufacture a specific pictographic anode for different parts, and the universality of the tool clamp is not strong. Not only greatly increased the manufacturing cost of enterprise, owing to depositing in a large number of frock clamp, also produced harmful effects to the 6S management of enterprise. Secondly, when the production line is designed, proper automatic equipment is selected to carry out batch production aiming at specific workpieces, so that the aim of improving the uniformity of the plating layer is fulfilled.
However, under the premise that the workshop production line is solidified for years, due to the fact that parts are various, the two schemes are not suitable for production of the unit. Therefore, in practical production application, the hanger and the system which have high manufacturing universality and low reconstruction cost are one of feasible methods for improving the uniformity of the plating layer of the workpiece similar to a revolving body.
Disclosure of Invention
In order to solve the defects of the prior art, the electroplating system for the revolving body workpiece is simple in structure and applicable to revolving body workpieces with different weights.
In order to achieve the technical effects, the technical scheme of the application is as follows:
an electroplating system for a rotary body workpiece, characterized in that: the electroplating bath is characterized by comprising an electroplating bath, wherein a cathode rod is arranged in the electroplating bath, a pneumatic rotating device is arranged on the cathode rod, a workpiece to be plated is suspended at the lower part of the pneumatic rotating device, and the pneumatic rotating device is connected with a pneumatic triple piece through an air pipe. The workpiece to be plated rotates under the combined action of the air pipe, the pneumatic triple piece and the pneumatic rotating device, and a uniform film layer is electroplated on the outer surface.
The number of the cathode rods is 2.
The pneumatic triple piece comprises a pneumatic switch, a pneumatic regulator and an air pipe support frame, the air pipe is connected with the pneumatic triple piece, and the rotating speed of the pneumatic rotating device is controlled by the pneumatic regulator; the height of the trachea support frame is adjustable.
The air pipe support frame is connected with the outer wall of the bath body of the electroplating bath through a bolt.
The air inlet of the pneumatic switch is connected with the compressed air outlet through threads, and the air outlet of the pneumatic switch is connected with the air inlet of the air pressure regulator in series through threads.
The air pipe is a hose, and the air pipe is in plug-in connection with the air outlet of the air pressure regulator and is fastened by a hose clamp.
The pneumatic rotating device comprises a pneumatic motor, a sliding block, a locking device, a conducting ring slide and a workpiece hanging rod, the pneumatic motor is connected with an air pipe, and the sliding block can move left and right on the cathode rod and is fixed through the locking device; the conducting ring is fixed between the locking device and the workpiece suspender in a sliding mode, and the rotation stability of the workpiece is guaranteed. The workpiece suspender is detachable and adjustable in height; the workpiece suspender is a copper rod; the weight range of the hanger capable of bearing the workpiece to be plated is 0-10 kg.
Use of an electroplating system for a rotary workpiece for chromium plating, the electroplating solution comprising: CrO 3: 200 g/L-390g/L, H2SO 4: 2.00 g/L-3.90 g/L.
The beneficial effect of this application is:
1. by adopting the electroplating system, power lines between the surfaces of the workpieces to be plated and the cathode rods can be uniformly distributed, uniform electroplating of the workpieces to be plated like a revolving body is realized, and the part qualification rate and the working efficiency are improved.
The air pipe support and the workpiece suspender in the electroplating system have adjustable heights, can bear wide workpiece weight range, can electroplate workpieces with different weights and sizes, does not need to change the existing production line, not only improves the universality, but also improves the electroplating quality and efficiency, and saves the cost.
According to the process requirements of the workpiece to be plated, the rotating speeds of the gas pressure regulator and the pneumatic motor are adjusted, so that the plating layers with different thicknesses are obtained on the surface of the workpiece, and the operation is simple.
Drawings
FIG. 1 is a schematic structural diagram of an electroplating system for a rotary workpiece according to the present application.
Fig. 2 is a schematic view of the pneumatic rotary device of the present application.
The method comprises the following steps of 1-electroplating bath, 2-cathode rod, 3-air pipe, 4-air pipe support frame, 5-air pressure regulator, 6-air switch, 7-air motor, 8-slide block, 9-locking device, 10-conducting ring slide and 11-workpiece suspender.
Detailed Description
Example 1
The electroplating system for the revolving body workpiece comprises an electroplating bath 1, wherein a cathode rod 2 is arranged in the electroplating bath 1, a pneumatic rotating device is arranged on the cathode rod 2, the workpiece to be plated is suspended at the lower part of the pneumatic rotating device, and the pneumatic rotating device is connected with a pneumatic triple piece through an air pipe 3. The workpiece to be plated rotates under the combined action of the air pipe 3, the pneumatic triple piece and the pneumatic rotating device, and a uniform film layer is electroplated on the outer surface.
The number of the cathode rods 2 is 2.
The pneumatic triple piece comprises a pneumatic switch 6, a pneumatic regulator 5 and a gas pipe support frame 4, the gas pipe 3 is connected with the pneumatic triple piece, and the rotating speed of the pneumatic rotating device is controlled by the pneumatic regulator 5; the height of the trachea support frame 4 is adjustable.
The air pipe support frame 4 is connected with the outer wall of the electroplating bath 1 through a bolt.
The air inlet of the pneumatic switch 6 is connected with the compressed air outlet through threads, and the air outlet of the pneumatic switch 6 is connected with the air inlet of the air pressure regulator 5 in series through threads.
The air pipe 3 is a hose, the air outlet of the air pipe 3 and the air pressure regulator 5 are in plug-in connection, and are fastened by a hose clamp.
The pneumatic rotating device comprises a pneumatic motor 7, a sliding block 8, a locking device 9, a conducting ring slide 10 and a workpiece hanging rod 11, wherein the pneumatic motor 7 is connected with the air pipe 3, and the sliding block 8 can move left and right on the cathode rod 2 and is fixed through the locking device 9; the conducting ring slide 10 is fixed between the locking device 9 and the workpiece hanging rod 11, so that the rotation stability of the workpiece is ensured. The workpiece suspender 11 is detachable and adjustable in height; the workpiece suspender 11 is a copper rod; the weight range of the hanger capable of bearing the workpiece to be plated is 0-10 kg.
Use of an electroplating system for a rotary workpiece for chromium plating, the electroplating solution comprising: CrO 3: 200 g/L-390g/L, H2SO 4: 2.00 g/L-3.90 g/L.
By adopting the electroplating system, power lines between the surfaces of the workpieces to be plated and the cathode rods 2 can be uniformly distributed, uniform electroplating of the workpieces to be plated like a revolving body is realized, and the part qualification rate and the working efficiency are improved. The height of the air pipe 3 support and the height of the workpiece suspender 11 in the electroplating system can be adjusted, the workpiece weight range can be wide, workpieces with different weights and sizes can be electroplated, the existing production line is not required to be changed, the universality is improved, the electroplating quality and efficiency are also improved, and the cost is saved. According to the process requirements of the workpiece to be plated, the rotating speeds of the gas pressure regulator 5 and the pneumatic motor 7 are adjusted, so that the plating layers with different thicknesses are obtained on the surface of the workpiece, and the operation is simple.
Example 2
An aircraft accessory weighing about 0.5kg and 10cm in length based on example 1 was chrome plated on its exterior surface in a plating system for a rotary body, the plating solution containing CrO 3: 260 g/L, H2SO 4: 2.60 g/L. The specific operation process is as follows: the accessory is hung on a workpiece hanging rod 1111, the heights of the workpiece hanging rod 1111 and an air pipe supporting frame 44 are adjusted, the slider 88 is moved left and right to determine the specific position of the accessory on a cathode rod 22, the accessory is immersed in electroplating liquid, a pneumatic switch 66 is turned on, the air pressure entering an air pipe 3 is ensured to be 0.5MPa through an air pressure regulator 55, the rotating speed of a pneumatic motor 7 is 2r/min, after 15min of electroplating, the accessory with the chromium layer thickness of 5 mu m on the outer surface is obtained, and the surface thickness of the accessory is measured to be uniform through a micrometer.
Example 3
In addition to example 1, an aircraft accessory weighing about 3kg and 15cm in length was chrome-plated on its outer surface in a plating system for a rotary body, the plating solution containing CrO 3: 300 g/L, H2SO 4: 3.00 g/L. The specific operation process is as follows: the accessory is hung on a workpiece hanging rod 1111, the heights of the workpiece hanging rod 1111 and an air pipe supporting frame 44 are adjusted, the slider 88 is moved left and right to determine the specific position of the accessory on a cathode rod 22, the accessory is immersed in electroplating liquid, a pneumatic switch 66 is turned on, the air pressure entering an air pipe 3 is ensured to be 0.4MPa through an air pressure regulator 55, the rotating speed of a pneumatic motor 7 is 1r/min, after 45min of electroplating, the accessory with the chromium layer thickness of 15 mu m on the outer surface is obtained, and the surface thickness of the accessory is measured to be uniform through a micrometer.
Example 4
In addition to example 1, an aircraft accessory weighing about 8kg and having a length of 40cm was subjected to a chromium plating treatment of its outer surface in a plating system for a rotary body, the plating solution containing CrO 3: 290 g/L, H2SO 4: 3.00 g/L. The specific operation process is as follows: the accessory is hung on a workpiece hanging rod 1111, the heights of the workpiece hanging rod 1111 and an air pipe supporting frame 44 are adjusted, the slider 88 is moved left and right to determine the specific position of the accessory on a cathode rod 22, the accessory is immersed in electroplating liquid, a pneumatic switch 66 is turned on, the air pressure entering an air pipe 3 is ensured to be 0.4MPa through an air pressure regulator 55, the rotating speed of a pneumatic motor 7 is 0.5r/min, after electroplating is carried out for 228min, the accessory with the chromium layer thickness of 76 mu m on the outer surface is obtained, and the surface thickness of the accessory is measured to be uniform through a micrometer.
Claims (7)
1. An electroplating system for a rotary body workpiece, characterized in that: the electroplating bath comprises an electroplating bath (1), wherein a cathode rod (2) is arranged in the electroplating bath (1), a pneumatic rotating device is arranged on the cathode rod (2), a workpiece to be plated is suspended at the lower part of the pneumatic rotating device, and the pneumatic rotating device is connected with a pneumatic triple piece through an air pipe (3).
2. An electroplating system for a rotary body workpiece according to claim 1, wherein: the number of the cathode rods (2) is 2.
3. An electroplating system for a rotary body workpiece according to claim 1, wherein: the pneumatic triple piece comprises a pneumatic switch (6), a pneumatic regulator (5) and a pneumatic pipe support frame (4), the pneumatic pipe (3) is connected with the pneumatic triple piece, and the rotating speed of the pneumatic rotating device is controlled through the pneumatic regulator (5); the height of the trachea support frame (4) is adjustable.
4. A plating system for a rotary body workpiece according to claim 3, wherein: the air pipe support frame (4) is connected with the outer wall of the electroplating bath (1) through a bolt.
5. A plating system for a rotary body workpiece according to claim 3, wherein: the air inlet of the pneumatic switch (6) is connected with the compressed air outlet through threads, and the air outlet of the pneumatic switch (6) is connected with the air inlet of the air pressure regulator (5) in series through threads.
6. A plating system for a rotary body workpiece according to claim 3, wherein: the air pipe (3) is a hose, the air pipe (3) is in plug-in connection with an air outlet of the air pressure regulator (5), and is fastened by a hose clamp.
7. An electroplating system for a rotary body workpiece according to claim 1, wherein: the pneumatic rotating device comprises a pneumatic motor (7), a sliding block (8), a locking device (9), a conducting ring slider (10) and a workpiece hanging rod (11), the pneumatic motor (7) is connected with the air pipe (3), and the sliding block (8) is fixed through the locking device (9); the conducting ring slide (10) is fixed between the locking device (9) and the workpiece suspender (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394760.XA CN111206274A (en) | 2018-11-22 | 2018-11-22 | Electroplating system for revolving body workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394760.XA CN111206274A (en) | 2018-11-22 | 2018-11-22 | Electroplating system for revolving body workpiece |
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| Publication Number | Publication Date |
|---|---|
| CN111206274A true CN111206274A (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811394760.XA Pending CN111206274A (en) | 2018-11-22 | 2018-11-22 | Electroplating system for revolving body workpiece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926371A (en) * | 2020-08-29 | 2020-11-13 | 冯玉武 | Electroplating system and electroplating method suitable for revolving body workpiece |
Citations (3)
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| CN107974704A (en) * | 2017-12-14 | 2018-05-01 | 中国工程物理研究院激光聚变研究中心 | A kind of electroplating bath cathode moving device rotated and move back and forth |
| CN109457288A (en) * | 2018-12-26 | 2019-03-12 | 华侨大学 | The platform-type rotating electroplating experimental provision of multistation |
| CN208995626U (en) * | 2018-09-06 | 2019-06-18 | 东莞市希锐自动化科技股份有限公司 | A kind of internal and external anode rack plating apparatus of rotatable cathode |
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2018
- 2018-11-22 CN CN201811394760.XA patent/CN111206274A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974704A (en) * | 2017-12-14 | 2018-05-01 | 中国工程物理研究院激光聚变研究中心 | A kind of electroplating bath cathode moving device rotated and move back and forth |
| CN208995626U (en) * | 2018-09-06 | 2019-06-18 | 东莞市希锐自动化科技股份有限公司 | A kind of internal and external anode rack plating apparatus of rotatable cathode |
| CN109457288A (en) * | 2018-12-26 | 2019-03-12 | 华侨大学 | The platform-type rotating electroplating experimental provision of multistation |
Non-Patent Citations (1)
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| 吴艳红: "《液压与气压传动》", 31 August 2014, 北京：北京交通大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926371A (en) * | 2020-08-29 | 2020-11-13 | 冯玉武 | Electroplating system and electroplating method suitable for revolving body workpiece |
| CN111926371B (en) * | 2020-08-29 | 2021-12-14 | 珠海市精敏科技有限公司 | Electroplating system and electroplating method suitable for revolving body workpiece |
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Application publication date: 20200529 |
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| RJ01 | Rejection of invention patent application after publication |