CN105483807A - Chromium electroplating equipment - Google Patents

Abstract

The invention relates to an electrochrome plating equipment, comprising a rectifier, a control system, a driving device, a displacement device, a fixture device and an electroplating electrode device, the control system controls the operation of the equipment, and the rectifier controls the electroplating electrode device to carry out electrolysis. The fixture device is fixedly connected above the link arm at the front end of the displacement device, the driving device is fixedly connected below the link arm, the cathode of the electroplating electrode device is movably connected with the fixture device, and its anode Actively connected with the driving device. The beneficial effects of the invention are: simple operation, compact structure, improved product qualification rate, long-distance operation, not only saving costs but also reducing damage to human health.

Description

A kind of electrochrome plating equipment

technical field

The invention relates to the field of electroplating, in particular to a chromium electroplating equipment.

Background technique

Electroplating refers to a surface processing method in which the cations of the pre-plated metal in the plating solution are deposited on the surface of the base metal by electrolysis with the base metal to be plated as the cathode in a salt solution containing pre-plated metal to form a coating. .

Chromium is a silvery-white metal with a slight bluish tint, which is easily passivated in the air, and a very thin passivation film is formed on the surface, thus showing the properties of a noble metal. The chrome plating layer has good heat resistance, wear resistance and good chemical stability, and it does not work in alkali, sulfide, nitric acid and most organic acids, so it is usually used in cylinders of garden tools such as lawn mowers coating on the inner surface.

Because chromium metal is brittle and easy to break, the anode used for chromium plating is not metal chromium, but titanium, lead-antimony or lead-tin alloys are used as insoluble anodes. When chromium plating is performed in chromic acid solution, one end of the anode rod is placed in the cylinder. Together with the cylinder as the cathode, the other end as the anode, the fixing piece fixes the anode rod in the cylinder and puts it into the liquid medicine to energize. Since chromium is a very active metal, the atomic structure of chromium also has some characteristics different from other metals, and a continuous coating can only be obtained at a very negative potential; the current efficiency of chromium plating is low, and a large amount of hydrogen is precipitated on the cathode. On the surface of the electroplating substrate, bubbles are generated, which makes the plating of the electroplating substrate uneven, rough, and not smooth, resulting in defective products. Usually shaking, stirring and other methods are used to promote the flow of the solution, so that the state of the solution is evenly distributed, and the air bubbles on the surface of the cathode are eliminated; but the cylinder of the garden tool is small, and when it is electroplated inside, one end of the anode rod is fixed in the cylinder by a fixture. The whole is soaked in the electroplating solution, and the electroplating solution is housed in the cylinder to form a seal. The solution in the cylinder is difficult to flow, and the probability of producing defective products is very high, resulting in waste.

At the same time, a large amount of chemicals such as strong acid, strong alkali, salt and organic solvents are used in electroplating production, and a large amount of poisonous and harmful gases will be emitted during the operation. Usually, the staff need to be close to the electroplating chemical pool during operation, which seriously endangers human health. .

Contents of the invention

In order to solve the above technical problems, the present invention provides a chromium electroplating equipment, which is easy to use and safe to operate.

The technical solution adopted in the present invention is: an electrochrome plating equipment, including a rectifier, a control system, a driving device, a displacement device, a fixture device and an electroplating electrode device, the control system is connected to the displacement device and the driving device, The positive and negative poles of the rectifier are respectively connected to the anode and cathode of the electroplating electrode device, the clamp device is fixedly connected above the linkage arm at the front end of the displacement device, and the drive device is fixedly connected to the linkage arm. Below the arm, the cathode of the electroplating electrode device is movably connected with the clamp device, and its anode is movably connected with the driving device.

Through the movement of the displacement device, the clamp device on the linkage arm is driven to perform displacement movement, and the electroplating electrode device is sent to different positions for electroplating/cleaning and other processes, and the operator does not need to stand by the electroplating liquid pool , which can be operated remotely, reducing the harm to the human body caused by electroplating.

As a further improvement, the electroplating electrode device includes an electroplating base, a fixing piece, and an anode rod. The anode rod includes a rod body, a base and a bottom cover. The base is hollow inside, and its lower end is provided with a number of transparent water outlets along the radial direction. , the rod body is a hollow rod with transparent ends, the end of which is nested in the front end of the base, the bottom cover is fixed at the end of the base, the base is set in the electroplating matrix, and the fixed A piece is set on the rod body, the fixing piece is movably connected with the base body, and the fixing piece is provided with a plurality of through-holes that penetrate up and down.

The driving device injects the electroplating solution in the electroplating liquid pool from the water inlet hole at the front end of the rod body into the rod body through a motor or a circulating pump, and the liquid medicine flows out from the water outlet hole under the base to wash the surface of the electroplating layer. , the electroplating solution inside the electroplating substrate forms a cyclic exchange with the electroplating solution outside the electroplating substrate, keeps the temperature and concentration of the electroplating solution stable, and prevents the generation of air bubbles on the surface of the electroplating layer.

As a further improvement, the clamp device includes a connecting device, a locking device, a hanging plate and a side frame vertically fixed thereto, the connecting device is fixed on the side frame, and the locking device is movably connected with the connecting device, The hanging plate is provided with a through hole corresponding to the locking device.

As a further improvement, the locking device includes a bolt, a rotating rod and a hold-down device, the bolt is perpendicular to the hanging plate, the upper end of the bolt is fixedly connected to the rotating rod, and the lower end is movably connected to the hold-down device , the connecting device includes a fixed seat, a manual rod, a support rod, and a nut, the fixed seat is fixed on the side frame, the manual rod and the support rod are respectively connected to the fixed seat through a hinge, the A nut is fixed on the support rod, and the nut is threadedly connected with the bolt.

As a further improvement, the press device includes a press bracket and more than one press plate, the press plate is movably connected with the press support, and the through holes on the hanging plate correspond to the positions of the press plates.

As a further improvement, the displacement device includes a base, an AC motor, a servo motor, a reduction motor, a semi-circular gear, and a turning mechanism. Both ends of the turning mechanism are movably connected to the left and right side walls of the base, and the half The circular gear is coaxially connected with the base, and it is located between the right side wall of the base and the right end of the slewing mechanism. The reduction motor is fixed in the base and is connected with the sector gear teeth Together, the servo motor is connected to the geared motor, and the AC motor is connected to the slewing mechanism.

As a further improvement, the rotary mechanism includes a casing, a rotating shaft, and a turntable, the turntable is located above the casing and parallel to the casing, the rotating shaft is arranged in the casing, and its end passes through the The casing is fixedly connected with the turntable.

As a further improvement, the driving device includes a circulation pump, a liquid inlet device, and an electrode catheter device. The electrode catheter device is connected.

The beneficial effects of the invention are: simple operation, compact structure, good effect of eliminating air bubbles, stable concentration and temperature of the electroplating solution, improved product pass rate, and can maintain remote operation, which not only saves costs but also reduces the risk of human health. harm.

Description of drawings

In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

Fig. 1 is a schematic view of the side structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the structure of the electroplating electrode device.

Fig. 3 is a schematic diagram of the structure of the anode rod.

Fig. 4 is a structural schematic diagram of the clamp device.

Fig. 5 is a structural schematic diagram of the locking device and the connecting device.

Fig. 6 is a schematic structural diagram of the displacement device.

Among them: 1-rectifier, 2-control system, 3-drive device, 31-circulation pump, 32-liquid inlet device, 33-electrode catheter device, 4-displacement device, 41-base, 42-AC motor, 43 -servo motor, 44-reduction motor, 45-semicircular gear, 46-housing, 47-rotating shaft, 48-turntable, 5-fixture device, 50 pressure plate, 51-hanging plate, 52-side frame, 53 -bolt, 54-rotating rod, 55-fixing seat, 56-manual rod, 57-support rod, 58-nut, 59-pressor bracket, 6-electroplating electrode device, 61-plating substrate, 62-fixing piece, 63 -Anode rod, 64-rod body, 65-base, 66-bottom cover, 67-water outlet hole.

detailed description

As shown in Figures 1-6, a kind of electrochrome plating equipment according to the present invention includes a rectifier 1, a control system 2, a driving device 3, a displacement device 4, a clamp device 5 and an electroplating electrode device 6, and the control system 2 The displacement device 4 and the driving device 5 are respectively connected, the clamp device 5 is fixedly connected above the link arm 7 at the front end of the displacement device 4, and the drive device 3 is fixed on the link arm 7, the cathode of the electroplating electrode device 6 is movably connected with the clamp device 4, its anode is movably connected with the drive device 5, and the positive and negative poles of the rectifier 1 are respectively connected with the anode of the electroplating electrode device 6. , Cathode connection.

The electroplating electrode device 6 includes an electroplating substrate 61, a fixing member 62, and an anode rod 63. The anode rod 63 includes a rod body 64, a base 65 and a bottom cover 66. The inside of the base 65 is hollow, and its lower end is arranged radially. Several transparent water outlet holes 67, the rod body 64 is a hollow rod with transparent ends, the end of which is nested in the front end of the base 65, and the bottom cover 66 is fixed on the end of the base 65, so The base 65 is set in the electroplating base 61, the fixing piece 62 is set on the rod body 64, the fixing piece 62 is movably connected with the base body 61, and the fixing piece 62 is provided with several upper and lower transparent parts. through holes.

The clamp device 5 includes a connecting device, a locking device, a hanging plate 51 and a side frame 52 vertically fixed thereto, the connecting device is fixed on the side frame 52, and the locking device is movably connected with the connecting device , the hanging plate 51 is provided with a through hole corresponding to the locking device.

The locking device includes a bolt 53, a rotating rod 54 and a holding device, the bolt 53 is perpendicular to the hanging plate, the upper end of the bolt 53 is fixedly connected to the rotating rod 54, and the lower end is connected to the holding device. Flexible connection, the connecting device includes a fixed base 55, a manual rod 56, a support rod 57, and a nut 58, the fixed base 55 is fixed on the side frame 52, and the manual rod 56 and the supported rod 57 pass through the The hinge is connected with the fixing seat 55 , the nut 58 is fixed on the support rod 57 , and the nut 58 is threaded with the bolt 53 .

The press device includes a press support 59 and more than one press plate 50 , the press plate 50 is movably connected with the press support 59 , and the through hole on the hanging plate 51 corresponds to the position of the press plate 50 .

The displacement device 4 includes a base 41, an AC motor 42, a servo motor 43, a reduction motor 44, a semicircular gear 45 and a rotary mechanism, and the two ends of the rotary mechanism are movably connected to the left and right side walls of the base 41 Above, the semi-circular gear 35 is coaxially connected with the base 31, which is located between the right side wall of the base 41 and the right end of the turning mechanism, and the reduction motor 44 is fixed on the base 41 The gear inside and through its front end meshes with the semicircular gear 45, the servo motor 43 is connected with the reduction motor 44, and the AC motor 42 is connected with the rotary mechanism.

The rotary mechanism includes a casing 46, a rotating shaft 47, and a turntable 48, the turntable 48 is located above the casing 46 and parallel to the casing 46, and the rotating shaft 47 is arranged in the casing 46 , the end of which passes through the housing 46 and is fixedly connected with the turntable 48 .

The driving device 3 includes a circulation pump 31, a liquid inlet device 32, and an electrode catheter device 33, the electrode catheter device 33 is fixed on the liquid inlet device 32, the circulation pump 31 is movably connected with the liquid inlet device 32, and the electroplating The anode rod of the electrode device 6 is inserted into the electrode catheter device 33, the negative pole of the rectifier is connected to the pressure plate, the positive pole of the rectifier is connected to the electrode catheter device, and one rectifier controls one electroplating electrode device.

The electroplating electrode device is buckled upside down on the hanging plate through the through hole on the hanging plate, the anode rod is inserted into the electrode catheter device below the through hole, the locking device is pressed down to quickly lock the base, and the opening The power supply makes the device work, and performs a tilting movement, driving the electroplating electrode device to turn over from one side of the workbench to the electroplating solution pool on the opposite side, and the circulation pump pumps the electroplating solution in the electroplating solution pool into the anode rod from the water inlet of the rod body. The electroplating solution flows out from the water outlet hole of the base, and then flows into the electroplating solution pool through the through hole on the fixing piece to form a cycle. The electroplating solution in the matrix flows continuously. When electrolytic chrome plating is performed, the electroplating layer is continuously washed away. The thickness of the plating layer is uniform, no bubbles are generated, the concentration and temperature of the chemical solution in the matrix and in the electroplating pool are kept stable, which effectively improves the quality of electroplating and the qualified rate of products. The device is sent to the cleaning tank for cleaning and then flipped back to the workbench, keeping the operator away from the plating solution pool and reducing the harm of toxic gases to the human body.

The above descriptions are only preferred solutions of the present invention, and are not intended to further limit the present invention. All equivalent changes made by using the description and drawings of the present invention are within the protection scope of the present invention.

Claims (8)

1. A kind of electrochrome plating equipment, it is characterized in that, comprises rectifier, control system, drive unit, displacer, fixture device and electroplating electrode unit, described control system is electrically connected described displacer, described drive unit and rectifier , the positive and negative poles of the rectifier are respectively connected to the anode and cathode of the electroplating electrode device, the clamp device is fixedly connected above the linkage arm at the front end of the displacement device, and the drive device is fixedly connected to the linkage arm Below the movable arm, the cathode of the electroplating electrode device is movably connected with the clamp device, and its anode is movably connected with the driving device. 2. A kind of electrochrome plating equipment according to claim 1, it is characterized in that, described electroplating electrode device comprises electroplating substrate, fixture, anode rod, and described anode rod comprises rod body, base and bottom cover, and described base The interior is hollow, and its lower end is provided with several transparent water outlet holes in the radial direction. The rod body is a hollow rod with transparent ends, and its end is nested in the front end of the base, and the bottom cover is fixed on the base. At the end, the base is set in the electroplating matrix, the fixing piece is sleeved on the rod body, the fixing piece is movably connected with the base body, and the fixing piece is provided with a plurality of through holes that are transparent up and down. 3. A kind of electrochrome plating equipment according to claim 2, it is characterized in that, described fixture device comprises connecting device, locking device, hanging plate and the side frame that is vertically fixed with it, and described connecting device is fixed on described side On the frame, the locking device is movably connected with the connecting device, and the hanging plate is provided with a through hole corresponding to the locking device. 4. A kind of electrochrome plating equipment according to claim 3, it is characterized in that, described locking device comprises bolt, rotating bar and presser device, and described bolt is perpendicular to described base, and described bolt upper end is connected with described The rotating rod is fixedly connected, and its lower section is movably connected with the presser device. The connecting device includes a fixed seat, a manual rod, a support rod, and a nut. The fixed seat is fixed on the side frame, and the manual rod and the The support rods are respectively connected to the fixing seats through hinges, the nuts are fixed on the support rods, and the nuts are threadedly connected to the bolts. 5. A kind of electrochrome plating equipment according to claim 4, it is characterized in that, described presser device comprises presser support and more than one press plate, and described press plate is connected with described press support movably, and described hanger The through holes on the board correspond to the position of the pressure plate. 6. A kind of electrochrome plating equipment according to any one of claims 1-5, characterized in that, the displacement device comprises a base, an AC motor, a servo motor, a reduction motor, a semicircular gear, and a rotary mechanism, Both ends of the turning mechanism are movably connected to the left and right side walls of the base, and the semicircular gear is coaxially connected to the base, and is located between the right side wall of the base and the right end of the turning mechanism , the reduction motor is fixed in the base and engages with the sector gear through gears, the servo motor is connected with the reduction motor, and the AC motor is connected with the slewing mechanism. 7. A kind of electrochrome plating equipment according to claim 6, is characterized in that, described rotary mechanism comprises shell, rotating shaft, turntable, and described turntable is positioned at described shell above and is parallel with described shell, so The rotating shaft is arranged in the housing, and its end passes through the housing and is fixedly connected with the turntable. 8. A kind of electrochrome plating equipment according to claim 7, is characterized in that, described driving device comprises circulation pump, liquid inlet device, electrode catheter device, and electrode catheter device is fixed on described liquid inlet device, and described circulation The pump is movably connected with the liquid inlet device, and the anode of the electroplating electrode device is connected with the electrode catheter device.