Heavy-duty cylinder barrel inner and outer wall electroplating device and electroplating method

Abstract

The present invention provides an electroplating device for the inner and outer walls of a heavy-duty oil cylinder barrel, which includes a flying bar assembly, a plating tank assembly, a pole seat assembly, and a hanging tooling; the flying bar assembly includes an anode pole bar, a cathode pole bar, a plurality of insulating blocks, a plurality of insulating support rods, and a lifting seat; the plating tank assembly includes a tank body and a plurality of anode plates suspended on the inner walls of both sides of the tank body; the pole seat assembly includes an anode pole seat and a cathode pole seat; the hanging tooling includes an auxiliary anode rod and two insulating clamping plates; the present invention also provides a method for electroplating a heavy-duty oil cylinder barrel by using the above electroplating device for the inner and outer walls of a heavy-duty oil cylinder barrel. The electroplating device and electroplating method for the inner and outer walls of a heavy-duty oil cylinder barrel have the advantages of an electroplating flying bar that can withstand heavy pressure, enabling the heavy-duty oil cylinder barrel to be conveniently lifted into and out of the plating tank without frequent wiring, and being able to operate simultaneously in three working conditions: electroplating the inner wall alone, electroplating the outer wall alone, and electroplating the inner and outer walls simultaneously.

Description

Technical Field

[0001] The invention relates to the field of electroplating, and in particular to an electroplating device and an electroplating method for inner and outer walls of a heavy oil cylinder barrel. Background Art

[0002] The hydraulic cylinder of a mining support is an important load-bearing and driving component in the mine. In order to cope with the complex and harsh environment in the mine, it is necessary to apply electroplating protection (such as electroplating copper-tin alloy) on the surface of the hydraulic cylinder to protect the steel substrate. Among them, the cylinder barrel of the hydraulic cylinder of a mining support has the characteristics of heavy weight (weight can reach 1.5-3 tons) and long through-hole length. This characteristic leads to the following difficulties when electroplating the inner and outer walls of the cylinder barrel of a heavy cylinder: (1) It is difficult to move the plating tank up and down and difficult to fix; (2) Traditional electroplating flybars mainly play a conductive role and have poor load-bearing capacity. Heavy cylinder barrels cannot be hoisted using electroplating flybars; (3) The electrolyte is not easy to diffuse deep in the through-hole, which easily forms an electroplating dead zone.

[0003] Based on the above difficulties, the traditional electroplating process for the inner and outer walls of heavy-duty cylinder barrels is: offline degreasing, tooling, pretreatment (including manual wiring), entering the plating tank, manually overlapping the auxiliary anode conductive device, electroplating, online manual removal of the auxiliary anode conductive device, recovery water washing, and offline removal of tooling.

[0004] The above-mentioned traditional process has the following main disadvantages: (1) It takes a long time to raise and lower the cylinder and fix the cylinder each time, which is not easy to operate; (2) Each time the workpiece is raised and lowered, personnel are required to manually connect or disconnect the auxiliary anode wire with the positive pole of the power supply in the plating tank of the electroplating line. The auxiliary anode is also difficult to fix, resulting in low wiring efficiency. Frequent connection and disconnection can easily lead to poor conductivity during the electroplating process, which in turn causes quality problems such as peeling of the coating and uneven thickness; (3) There are certain safety hazards for operators during frequent connection. For some automated or fully enclosed production lines, automated production cannot be achieved; (4) The traditional plating tank requires manual switching of the connection line when electroplating the outer wall or inner wall of the cylinder. However, after switching the connection line, it can only operate for one working condition, and cannot simultaneously operate the three working conditions of electroplating the inner wall, electroplating the outer wall, and electroplating the inner and outer walls of different cylinders.

[0005] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies in the prior art and to provide a plating flybar that can withstand heavy pressure, so that the heavy-duty cylinder barrel can be easily moved in and out of the plating tank without frequent wiring, which is conducive to automation. It is a heavy-duty cylinder barrel inner and outer wall electroplating device and method that can perform three working conditions simultaneously: electroplating the inner wall alone, electroplating the outer wall alone, and electroplating the inner and outer walls at the same time.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a heavy-duty oil cylinder barrel inner and outer wall electroplating device, including a flying bar assembly, a plating tank assembly, a pole seat assembly and a hanging tooling;

[0008] The flying bar assembly includes an anode pole bar, a cathode pole bar, a plurality of insulating blocks, a plurality of insulating support rods and a lifting seat. The anode pole bar and the cathode pole bar are arranged in parallel. Anode plugs are respectively installed at both ends of the anode pole bar, and cathode plugs are respectively installed at both ends of the cathode pole bar. A plurality of the insulating support rods are supported and connected between the anode pole bar and the cathode pole bar. The anode pole bar includes two copper plates and a steel plate sandwiched between the two copper plates. A plurality of the insulating blocks are movably sleeved on the anode pole bar. The lifting seat is installed at both ends of the anode pole bar. A plurality of wiring through holes are provided on the cathode pole bar;

[0009] The plating tank assembly includes a tank body and a plurality of anode plates suspended on the inner walls on both sides of the tank body. The plurality of anode plates are located on both sides of the installation position of the flying bar assembly. The plurality of anode plates are externally connected to a positive power supply to form an outer anode electrode;

[0010] The pole seat assembly includes an anode pole seat and a cathode pole seat. The anode pole seat and the cathode pole seat are arranged along the side walls of the tank body. The anode pole seat cooperates with the anode plug to provide a positive power supply for the anode pole bar, and the cathode pole seat cooperates with the cathode plug to provide a negative power supply for the cathode pole bar;

[0011] The hanging tooling includes an auxiliary anode rod and two insulating clamping plates. The auxiliary anode rod includes a straight rod section and a hook section connected to the top end of the straight rod section. The two insulating clamping plates are respectively sleeved on the straight rod section through through holes. Locking nuts are respectively threadedly connected to the top end and the bottom end of the straight rod section. By rotating the locking nuts, the two insulating clamping plates clamp or loosen the cylinder barrel. The main structure of the insulating clamping plate is made of high-strength steel, and the contact surface with the cylinder barrel is made of an insulating material; the auxiliary anode rod can be suspended on the anode pole bar through the hook section to form a central anode electrode.

[0012] Based on the above, the anode pole seat includes an anode V-shaped seat and an anode seat groove. The anode seat groove is horizontally installed at the center of the upper edges of the two side walls of the tank body. The anode V-shaped seat is installed in the anode seat groove. The anode plug is an anode V-shaped plug that cooperates with the anode V-shaped seat; the cathode pole seat includes a cathode V-shaped seat and a cathode seat groove. The cathode seat groove is horizontally installed on the upper edges of the two side walls of the tank body. The cathode V-shaped seat is installed in the cathode seat groove. The cathode plug is a cathode V-shaped plug that cooperates with the cathode V-shaped seat.

[0013] Based on the above, the plating tank assembly further includes anode copper bars surrounding the upper edges of the side walls of the tank body. The tops of multiple anode plates are suspended on the surrounding anode copper bars. A rectifier power supply, an anode power supply copper bar, and a cathode power supply copper bar are installed on the outer wall of the tank body. One end of the anode power supply copper bar is connected to the positive pole of the rectifier power supply, and the other end of the anode power supply copper bar is connected to the anode V-shaped seat and the surrounding anode copper bars. One end of the cathode power supply copper bar is connected to the negative pole of the rectifier power supply, and the other end of the cathode power supply copper bar is connected to the cathode V-shaped seat.

[0014] Based on the above, an insulating backing plate is provided between the surrounding anode copper bar and the upper edge of the side wall of the tank body, and pole seat insulating backing plates are respectively provided between the anode V-shaped seat and the upper edge of the side wall of the tank body, and between the cathode V-shaped seat and the upper edge of the side wall of the tank body.

[0015] Based on the above, water cooling channels are respectively opened in the anode V-shaped seat and the cathode V-shaped seat, and the water cooling channels can be externally connected to cooling water to cool the anode V-shaped seat and the cathode V-shaped seat.

[0016] Based on the above, the two insulating clamping plates completely cover the ports of the cylinder barrel; or, the two insulating clamping plates are respectively provided with external communication gaps corresponding to the ports of the cylinder barrel.

[0017] The present invention also provides a method for electroplating a heavy-duty oil cylinder barrel using the above-mentioned electroplating device for the inner and outer walls of a heavy-duty oil cylinder barrel, including the following steps:

[0018] Step a1: Select insulating clamping plates with external communication gaps corresponding to the ports of the cylinder barrel, insert the straight rod section of the auxiliary anode rod into the center of the inner hole of the cylinder barrel, tighten the locking nuts at both ends, and the two insulating clamping plates clamp the cylinder barrel.

[0019] Step a2: Hang the combination of the hanging tooling and the cylinder barrel on the anode pole bar, avoiding the position of the insulating block, so as to connect the auxiliary anode rod to the anode.

[0020] Step a3: Connect one end of a wire to the terminal on the end face of the cylinder barrel, and connect the other end to the wiring through hole of the cathode pole bar through a bolt.

[0021] Step a4: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel onto the plating tank assembly, connect the anode plug to the anode pole seat, connect the cathode plug to the cathode pole seat, and the electrolyte solution in the tank body completely submerges the cylinder barrel.

[0022] Step a5: Connect the condensed water, turn on the power supply, and electroplate the inner wall and the outer wall of the cylinder barrel simultaneously according to the set process parameters.

[0023] The present invention also provides another method for electroplating a heavy-duty oil cylinder barrel using the above-mentioned electroplating device for the inner and outer walls of a heavy-duty oil cylinder barrel, including the following steps:

[0024] Step b1: Select an insulating clamping plate with an external communication gap left at the port corresponding to the cylinder barrel. Insert the straight rod section of the auxiliary anode rod into the center of the inner hole of the cylinder barrel, and tighten the locking nuts at both ends. The two insulating clamping plates clamp the cylinder barrel tightly;

[0025] Step b2: Hang the combination of the hanging tooling and the cylinder barrel on the anode bar, avoiding the position of the insulating block, so as to connect the auxiliary anode rod to the anode;

[0026] Step b3: Connect one end of a wire to the terminal on the end face of the cylinder barrel, and connect the other end to the wiring through hole of the cathode bar through a bolt;

[0027] Step b4: Wrap the outer wall of the cylinder barrel tightly with a plastic film and tie it firmly;

[0028] Step b5: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel onto the plating tank assembly. Connect the anode plug to the anode seat, and connect the cathode plug to the cathode seat. The electrolyte solution in the tank completely submerges the cylinder barrel;

[0029] Step b6: Connect the condensed water, turn on the power supply, and electroplate the inner wall of the cylinder barrel alone according to the set process parameters.

[0030] The present invention also provides another method for electroplating a heavy-duty oil cylinder barrel using the above-mentioned electroplating device for the inner and outer walls of a heavy-duty oil cylinder barrel, including the following steps:

[0031] Step S1: Select an insulating clamping plate that can completely cover the port of the cylinder barrel. Insert the straight rod section of the auxiliary anode rod into the center of the inner hole of the cylinder barrel, and tighten the locking nuts at both ends. The two insulating clamping plates clamp the cylinder barrel tightly;

[0032] Step S2: Hang the combination of the hanging tooling and the cylinder barrel on the insulating block on the anode bar to disconnect the auxiliary anode rod from the anode;

[0033] Step S3: Connect one end of a wire to the terminal on the end face of the cylinder barrel, and connect the other end to the wiring through hole of the cathode bar through a bolt;

[0034] Step S4: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel onto the plating tank assembly. Connect the anode plug to the anode seat, and connect the cathode plug to the cathode seat. The electrolyte solution in the tank completely submerges the cylinder barrel;

[0035] Step S5, connect the condensed water, turn on the power, and electroplate the outer wall of the cylinder separately according to the set process parameters.

[0036] The present invention has outstanding substantive features and significant progress compared to the prior art. Specifically, the present invention has the following advantages:

[0037] (1) By sandwiching a layer of steel plate between the two copper plates of the anode pole bar, the strength of the anode pole bar is greatly improved. By forming a frame structure with multiple insulating support rods and the cathode pole bar, the load-bearing capacity of the flybar assembly is further improved, and the maximum load-bearing capacity can reach 6 tons, thereby fully meeting the load-bearing requirements of the heavy-duty oil cylinder barrel. At the same time, the main structure of the insulating clamping plate is made of high-strength steel, which ensures the load-bearing capacity of the hanging tooling itself. The anode pole bar and the cathode pole bar themselves have conductive functions, and they do not rely on structures other than the flybar assembly to assist in load-bearing, which makes the load-bearing structure more streamlined.

[0038] (2) The anode pole seat cooperates with the anode plug, and the cathode pole seat cooperates with the cathode plug, so that when the Feiba assembly is hoisted onto the plating tank assembly, the anode and cathode are automatically connected, and only offline wiring is required, which saves the trouble of wiring and disconnecting in the plating tank of the electroplating line, improves the power supply stability, makes the operation simpler, and is conducive to automation.

[0039] (3) The auxiliary anode rod can be used to be inserted into the center of the inner hole of the cylinder barrel. By tightening the locking nut, the two insulating clamping plates can clamp the cylinder barrel from both ends. On the one hand, it plays a role in fixing the cylinder barrel and facilitating the hanging with the anode pole. On the other hand, the auxiliary anode rod can be connected with the anode pole to provide an anode end from the center of the inner hole of the heavy-duty oil cylinder barrel, thereby avoiding the formation of a dead zone deep in the inner hole when electroplating the inner wall of the cylinder barrel.

[0040] (4) The cylinder barrel of the heavy oil cylinder is connected to the cathode pole rod through a wire, so that the cylinder barrel of the heavy oil cylinder serves as a cathode, and the plurality of anode plates form a peripheral anode electrode, which is conducive to forming an electroplating layer on the outer wall of the cylinder barrel of the heavy oil cylinder. The auxiliary anode rod forms a central anode electrode, which is conducive to forming an electroplating layer on the inner wall of the cylinder barrel of the heavy oil cylinder. When the inner and outer anode electrodes are connected, simultaneous electroplating of the inner and outer walls can be achieved;

[0041] By wrapping the outer wall of the cylinder tightly with plastic film, the inner wall of the heavy-duty cylinder can be electroplated separately;

[0042] By hanging the auxiliary anode rod on the insulating block of the anode pole, the central anode electrode can be cut off to prevent the deep inner hole from being electroplated, and then the insulating clamping plate is used to seal the port of the cylinder barrel to prevent the inner hole near the port from being electroplated, thereby realizing the separate electroplating of the outer wall of the heavy oil cylinder barrel;

[0043] The above three operations can be carried out simultaneously, so that a single device can realize the simultaneous operation of three working conditions of electroplating the inner wall of different cylinder barrels alone, electroplating the outer wall alone, and electroplating the inner and outer walls simultaneously. Brief Description of the Drawings

[0044] Figure 1 It is a schematic structural diagram of the electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel in the present invention.

[0045] Figure 2 It is a top view of the electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel in the present invention.

[0046] Figure 3 It is a schematic structural diagram of the flying bar assembly in the present invention.

[0047] Figure 4 It is a schematic structural diagram of a hanging tooling in the present invention.

[0048] Figure 5 It is a schematic structural diagram of another hanging tooling in the present invention.

[0049] In the figure: 1. Anode pole bar; 2. Cathode pole bar; 3. Insulating block; 4. Insulating support rod; 5. Lifting seat; 6. Anode V-shaped plug; 7. Cathode V-shaped plug; 8. Tank body; 9. Surrounding anode copper bar; 10. Anode plate; 11. Copper plate; 12. Steel plate; 13. Rectifier power supply; 14. Anode power supply copper bar; 15. Cathode power supply copper bar; 16. Anode V-shaped seat; 17. Anode seat groove; 18. Cathode V-shaped seat; 19. Cathode seat groove; 20. Auxiliary anode rod; 21. Wiring through hole; 22. Insulating clamping plate; 23. Straight rod section; 24. Hook section; 25. Locking nut; 26. Insulating backing plate; 27. Pole seat insulating backing plate; 28. Wire; 29. Terminal; 30. Cylinder barrel. Detailed Embodiments

[0050] The technical solutions of the present invention will be further described in detail below through specific embodiments.

[0051] Embodiment 1

[0052] As Figures 1 - 3 shown, a kind of electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel includes a flying bar assembly, a plating tank assembly, a pole seat assembly and a hanging tooling.

[0053] The flying bar assembly specifically includes an anode bar 1, a cathode bar 2, a plurality of insulating blocks 3, a plurality of insulating support rods 4, and a lifting seat 5. The anode bar 1 and the cathode bar 2 are arranged in parallel. Anode V-shaped plugs 6 are respectively installed at both ends of the anode bar 1, and cathode V-shaped plugs 7 are respectively installed at both ends of the cathode bar 2. A plurality of the insulating support rods 4 are supported and connected between the anode bar 1 and the cathode bar 2. The insulating support rods 4 can either be made of insulating material itself or be provided with insulating gaskets at their ends. The anode bar 1 includes two copper plates 11 and a steel plate 12 sandwiched between the two copper plates 11. The areas of the two copper plates 11 and the steel plate 12 are equal, and the three are fixed together by bolts. A plurality of the insulating blocks 3 are movably sleeved on the anode bar 1. The insulating blocks 3 can specifically adopt an inverted U-shaped groove structure. The lifting seat 5 is installed at both ends of the anode bar 1 for convenient hoisting. A plurality of wiring through holes 21 are provided on the cathode bar 2.

[0054] The plating tank assembly specifically includes a tank body 8, anode copper bars 9 arranged along the peripheries of the side walls of the tank body 8, and a plurality of anode plates 10 suspended on the inner walls of both sides of the tank body 8. The plurality of anode plates 10 are located on both sides of the installation position of the flying bar assembly. A rectifier power supply 13, an anode power supply copper bar 14, and a cathode power supply copper bar 15 are installed on the outer wall of the tank body 8. One end of the anode power supply copper bar 14 is connected to the positive pole of the rectifier power supply 13, and the other end of the anode power supply copper bar 14 is connected to an anode V-shaped seat 16 and the anode copper bars 9 around the periphery. The plurality of anode plates 10 are suspended on the anode copper bars 9 around the periphery, thereby forming an outer anode electrode. One end of the cathode power supply copper bar 15 is connected to the negative pole of the rectifier power supply 13, and the other end of the cathode power supply copper bar 15 is connected to the cathode V-shaped seat 18 to provide a negative connection for the cathode bar 2.

[0055] The pole seat assembly specifically includes an anode pole seat and a cathode pole seat. The anode pole seat includes an anode V-shaped seat 16 and an anode seat groove 17. The anode seat groove 17 is horizontally installed at the center of the upper edges of the two side walls of the tank body 8, and the anode V-shaped seat 16 is installed in the anode seat groove 17. The anode V-shaped seat 16 cooperates with the anode V-shaped plug 6. The cathode pole seat includes a cathode V-shaped seat 18 and a cathode seat groove 19. The cathode seat groove 19 is horizontally installed at the upper edges of the two side walls of the tank body 8, and the cathode V-shaped seat 18 is installed in the cathode seat groove 19. The cathode V-shaped seat 18 cooperates with the cathode V-shaped plug 7.

[0056] In order to avoid the circuits being connected in series, an insulating backing plate 26 is provided between the anode copper bars 9 around the periphery and the upper edges of the side walls of the tank body 8. Pole seat insulating backing plates 27 are respectively provided between the anode V-shaped seat 16 and the upper edges of the side walls of the tank body 8, and between the cathode V-shaped seat 18 and the upper edges of the side walls of the tank body 8.

[0057] In order to prevent the pole seat assembly from being damaged by heating, water cooling channels are respectively provided in the anode V-shaped seat 16 and the cathode V-shaped seat 18 . The water cooling channels can be connected to cooling water to cool the anode V-shaped seat 16 and the cathode V-shaped seat 18 .

[0058] The hanging tooling includes an auxiliary anode rod 20 and two insulating clamping plates 22. The auxiliary anode rod includes a straight rod section 23 and a hook section 24 connected to the top of the straight rod section 23. The two insulating clamping plates 22 are respectively mounted on the straight rod section 23 through through holes. The top and bottom ends of the straight rod section 23 are respectively threaded with locking nuts 25. Through the rotation of the locking nuts 25, the two insulating clamping plates 22 clamp or loosen the cylinder 30. The main structure of the insulating clamping plate 22 is made of high-strength steel and the contact surface with the cylinder is made of insulating material to ensure the load-bearing requirements. The auxiliary anode rod 20 can be suspended on the anode pole 1 through the hook section 24 to form a central anode electrode.

[0059] like Figure 4 As shown, the two insulating clamping plates 22 can completely cover the port of the cylinder 30, so as to protect the inner hole and electroplate the outer wall separately; Figure 5 As shown, the two insulating clamping plates 22 may also be provided with gaps for communication with the outside world corresponding to the ports of the cylinder 30, respectively, so as to facilitate simultaneous electroplating of the inner and outer walls or electroplating of the inner wall alone.

[0060] Working principle:

[0061] (1) By sandwiching a layer of steel plate 12 between the two copper plates 11 of the anode pole bar 1, the strength of the anode pole bar 1 is greatly improved. Then, by forming a frame structure with the plurality of insulating support rods 4 and the cathode pole bar 2, the load-bearing capacity of the flying bar assembly is further improved, and the maximum load-bearing capacity can reach 6 tons. At the same time, the main structure of the insulating clamping plate is made of high-strength steel, which ensures the load-bearing capacity of the hanging tool itself, thereby fully meeting the load-bearing requirements of the heavy-duty cylinder barrel 30. In addition, the anode pole bar 1 and the cathode pole bar 2 themselves have conductive functions, and they do not rely on structures other than the flying bar assembly to assist in load-bearing, which makes the load-bearing structure more streamlined.

[0062] (2) The anode V-shaped seat 16 cooperates with the anode V-shaped plug 6, and the cathode V-shaped seat 18 cooperates with the cathode V-shaped plug 7, so that when the Feiba assembly is hoisted onto the plating tank assembly, the anode and cathode are automatically connected, and only offline wiring is required, which saves the trouble of wiring and disconnecting in the plating tank of the electroplating line, improves the power supply stability, simplifies the operation, and is conducive to automation.

[0063] (3) The auxiliary anode rod 20 can be inserted into the center of the inner hole of the cylinder barrel 30. By tightening the lock nut 25, the two insulating clamping plates 22 can clamp the cylinder barrel 30 from both ends. On the one hand, it plays a role in fixing the cylinder barrel 30 and facilitating the connection with the anode rod 1. On the other hand, the auxiliary anode rod 20 can be connected to the anode rod 1 to provide the anode end from the center of the inner hole of the heavy-duty oil cylinder barrel 30, avoiding the formation of dead zones in the deep part of the inner hole when electroplating the inner wall of the cylinder barrel 30.

[0064] (4) The heavy-duty oil cylinder barrel 30 is connected to the cathode rod 2 through the wire 28, making the heavy-duty oil cylinder barrel 30 the cathode. Multiple anode plates 10 form the peripheral anode electrode, which is beneficial to form an electroplating layer on the outer wall of the heavy-duty oil cylinder barrel 30. The auxiliary anode rod 20 forms the central anode electrode, which is beneficial to form an electroplating layer on the inner wall of the heavy-duty oil cylinder barrel 30. When both the inner and outer anode electrodes are connected, simultaneous electroplating of the inner and outer walls can be achieved;

[0065] By tightly wrapping the outer wall of the cylinder barrel 30 with a plastic film, the inner wall of the heavy-duty oil cylinder barrel 30 can be electroplated separately;

[0066] By hanging the auxiliary anode rod 20 on the insulating block 3 of the anode rod 1, the central anode electrode can be cut off to avoid electroplating in the deep part of the inner hole. Then, by selecting the insulating clamping plate 22 to seal the port of the cylinder barrel 30, electroplating of the inner hole near the port can be avoided, thereby achieving separate electroplating of the outer wall of the heavy-duty oil cylinder barrel 30;

[0067] The above three operations can be carried out simultaneously, so that a single device can be used to achieve simultaneous operation of three working conditions: separately electroplating the inner wall, separately electroplating the outer wall, and simultaneously electroplating the inner and outer walls of different cylinder barrels 30.

[0068] Embodiment 2

[0069] A method for electroplating a heavy-duty oil cylinder barrel using the heavy-duty oil cylinder barrel inner and outer wall electroplating device in Embodiment 1 includes the following steps:

[0070] (1) When electroplating the inner and outer walls of the cylinder barrel 30 simultaneously, it includes the following steps:

[0071] Step a1: Select the insulating clamping plate 22 with an external communication gap left at the port corresponding to the cylinder barrel 30 ( Figure 5 ), insert the straight rod section 23 of the auxiliary anode rod 20 into the center of the inner hole of the cylinder barrel 30, and tighten the lock nuts 25 at both ends. The two insulating clamping plates 22 clamp the cylinder barrel 30;

[0072] Step a2: Hang the combination of the hanging tooling and the cylinder barrel 30 on the anode rod 1, avoiding the position of the insulating block 3, to achieve the connection of the auxiliary anode rod 20 to the anode;

[0073] Step a3: Connect one end of the wire 28 to the terminal 29 on the end face of the cylinder barrel 30, and connect the other end to the wiring through-hole of the cathode bar 2 by bolts;

[0074] Step a4: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel 30 onto the plating tank assembly. Connect the anode plug (anode V-shaped plug 6) to the anode seat (anode V-shaped seat 16), and connect the cathode plug (cathode V-shaped plug 7) to the cathode seat (cathode V-shaped seat 18). The electrolyte solution in the tank body 8 completely submerges the cylinder barrel 30;

[0075] Step a5: Connect the condensed water, turn on the power supply, and electroplate the inner wall and outer wall of the cylinder barrel 30 simultaneously according to the set process parameters.

[0076] (2) When electroplating the inner wall of the cylinder barrel 30 alone, it includes the following steps:

[0077] Step b1: Select an insulating clamping plate 22 with an external communication gap left at the port corresponding to the cylinder barrel 30 ( Figure 5 ), insert the straight rod section 23 of the auxiliary anode rod 20 into the center of the inner hole of the cylinder barrel 30, tighten the locking nuts 25 at both ends, and clamp the cylinder barrel 30 with the two insulating clamping plates 22;

[0078] Step b2: Hang the combination of the hanging tooling and the cylinder barrel 30 onto the anode bar 1, avoiding the position of the insulating block 3, to connect the auxiliary anode rod 20 to the anode;

[0079] Step b3: Connect one end of the wire 28 to the terminal 29 on the end face of the cylinder barrel 30, and connect the other end to the wiring through-hole of the cathode bar 2 by bolts;

[0080] Step b4: Wrap the outer wall of the cylinder barrel 30 tightly with plastic film and tie it firmly;

[0081] Step b5: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel 30 onto the plating tank assembly. Connect the anode plug (anode V-shaped plug 6) to the anode seat (anode V-shaped seat 16), and connect the cathode plug (cathode V-shaped plug 7) to the cathode seat (cathode V-shaped seat 18). The electrolyte solution in the tank body 8 completely submerges the cylinder barrel 30;

[0082] Step b6: Connect the condensed water, turn on the power supply, and electroplate the inner wall of the cylinder barrel 30 alone according to the set process parameters.

[0083] (3) When electroplating the outer wall of the cylinder barrel 30 alone, it includes the following steps:

[0084] Step S1: Select an insulating clamping plate 22 that can completely cover the port of the cylinder barrel 30 ( Figure 4 ), insert the straight rod section 23 of the auxiliary anode rod 20 into the center of the inner hole of the cylinder barrel 30, tighten the locking nuts 25 at both ends, and the two insulating clamping plates 22 clamp the cylinder barrel 30;

[0085] Step S2: Hang the combination of the hanging tooling and the cylinder barrel 30 on the insulating block 3 on the anode bar 1 to disconnect the auxiliary anode rod 20 from the anode;

[0086] Step S3: Connect one end of the wire 28 to the terminal 29 on the end face of the cylinder barrel 30, and connect the other end to the wiring through hole of the cathode bar 2 through a bolt;

[0087] Step S4: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel 30 onto the plating tank assembly. Connect the anode plug (anode V-shaped plug 6) to the anode seat (anode V-shaped seat 16), and connect the cathode plug (cathode V-shaped plug 7) to the cathode seat (cathode V-shaped seat 18). The electrolyte solution in the tank body 8 completely submerges the cylinder barrel 30;

[0088] Step S5: Turn on the condensed water, turn on the power supply, and electroplate the outer wall of the cylinder barrel 30 alone according to the set process parameters.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A heavy-duty oil cylinder barrel inner and outer wall electroplating device, characterized in that: It includes a flying bar assembly, a plating tank assembly, a terminal block assembly, and a hanging tooling. The flying bar assembly includes an anode pole bar, a cathode pole bar, a plurality of insulating blocks, a plurality of insulating support rods, and a hanging seat. The anode pole bar and the cathode pole bar are arranged in parallel. Anode plugs are respectively installed at both ends of the anode pole bar, and cathode plugs are respectively installed at both ends of the cathode pole bar. A plurality of the insulating support rods are supported and connected between the anode pole bar and the cathode pole bar. The anode pole bar includes two copper plates and a steel plate sandwiched between the two copper plates. A plurality of the insulating blocks are movably sleeved on the anode pole bar. The hanging seat is installed at both ends of the anode pole bar. A plurality of wiring through holes are provided on the cathode pole bar. The plating tank assembly includes a tank body and a plurality of anode plates suspended on both inner walls of the tank body. The plurality of anode plates are located on both sides of the installation position of the flying bar assembly. The plurality of anode plates are externally connected to a positive power supply to form a peripheral anode electrode. The terminal block assembly includes an anode terminal block and a cathode terminal block. The anode terminal block and the cathode terminal block are arranged along the side walls of the tank body. The anode terminal block cooperates with the anode plug to provide a positive power supply for the anode pole bar, and the cathode terminal block cooperates with the cathode plug to provide a negative power supply for the cathode pole bar. The hanging tooling includes an auxiliary anode rod and two insulating clamping plates. The auxiliary anode rod includes a straight rod section and a hook section connected to the top of the straight rod section. The two insulating clamping plates are respectively sleeved on the straight rod section through through holes. Locking nuts are respectively threadedly connected to the top and bottom of the straight rod section. By rotating the locking nuts, the two insulating clamping plates clamp or loosen the cylinder barrel. The main structure of the insulating clamping plate is made of high-strength steel, and the contact surface with the cylinder barrel is made of insulating material. The auxiliary anode rod can be suspended on the anode pole bar through the hook section to form a central anode electrode.

2. The electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel according to claim 1, wherein: The anode terminal block includes an anode V-shaped seat and an anode seat groove. The anode seat groove is horizontally installed at the center of the upper edges of both side walls of the tank body. The anode V-shaped seat is installed in the anode seat groove. The anode plug is an anode V-shaped plug that cooperates with the anode V-shaped seat. The cathode terminal block includes a cathode V-shaped seat and a cathode seat groove. The cathode seat groove is horizontally installed on the upper edges of both side walls of the tank body. The cathode V-shaped seat is installed in the cathode seat groove. The cathode plug is a cathode V-shaped plug that cooperates with the cathode V-shaped seat.

3. The electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel according to claim 2, wherein: The plating tank assembly further includes a surrounding anode copper bar arranged along the upper edges of each side wall of the tank body. The tops of the plurality of anode plates are suspended on the surrounding anode copper bar. A rectifier power supply, an anode power supply copper bar, and a cathode power supply copper bar are installed on the outer wall of the tank body. One end of the anode power supply copper bar is connected to the positive pole of the rectifier power supply, and the other end of the anode power supply copper bar is connected to the anode V-shaped seat and the surrounding anode copper bar. One end of the cathode power supply copper bar is connected to the negative pole of the rectifier power supply, and the other end of the cathode power supply copper bar is connected to the cathode V-shaped seat.

4. The electroplating device for the inner and outer walls of the heavy-duty cylinder barrel according to claim 3, wherein: An insulating backing plate is provided between the surrounding anode copper bars and the upper edge of the side wall of the tank body. An insulating backing plate for the electrode seat is respectively provided between the anode V-shaped seat and the upper edge of the side wall of the tank body, and between the cathode V-shaped seat and the upper edge of the side wall of the tank body.

5. The electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel according to claim 4, characterized in that: Cooling water channels are respectively provided inside the anode V-shaped seat and the cathode V-shaped seat. The cooling water channels can be externally connected to cooling water to cool the anode V-shaped seat and the cathode V-shaped seat.

6. The electroplating device for the inner and outer walls of the heavy-duty oil cylinder barrel according to any one of claims 1-5, characterized in that: The two insulating clamping plates completely cover the ports of the cylinder barrel; or, the two insulating clamping plates are respectively provided with external communication gaps corresponding to the ports of the cylinder barrel.

7. A method for electroplating a heavy-duty oil cylinder barrel using the heavy-duty oil cylinder barrel inner and outer wall electroplating device according to any one of claims 1-6, comprising the following steps: Step a1: Select an insulating clamping plate with an external communication gap left at the port corresponding to the cylinder barrel. Insert the straight rod section of the auxiliary anode rod into the center of the inner hole of the cylinder barrel, and tighten the locking nuts at both ends. The two insulating clamping plates clamp the cylinder barrel. Step a2: Hang the combination of the hanging tooling and the cylinder barrel on the anode pole bar, avoiding the position of the insulating block, to connect the auxiliary anode rod to the anode. Step a3: Connect one end of a wire to the terminal on the end face of the cylinder barrel, and connect the other end to the wiring through hole of the cathode pole bar through a bolt. Step a4: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel onto the plating tank assembly. Connect the anode plug to the anode seat, connect the cathode plug to the cathode seat, and the electrolyte solution in the tank body completely submerges the cylinder barrel. Step a5: Connect the condensed water, turn on the power supply, and electroplate the inner wall and outer wall of the cylinder barrel simultaneously according to the set process parameters.

8. A method for electroplating a heavy-duty oil cylinder barrel using the heavy-duty oil cylinder barrel inner and outer wall electroplating device according to any one of claims 1-6, comprising the following steps: Step b1: Select an insulating clamping plate with an external communication gap left at the port corresponding to the cylinder barrel. Insert the straight rod section of the auxiliary anode rod into the center of the inner hole of the cylinder barrel, and tighten the locking nuts at both ends. The two insulating clamping plates clamp the cylinder barrel. Step b2: Hang the combination of the hanging tooling and the cylinder barrel on the anode pole bar, avoiding the position of the insulating block, to connect the auxiliary anode rod to the anode. Step b3: Connect one end of a wire to the terminal on the end face of the cylinder barrel, and connect the other end to the wiring through hole of the cathode pole bar through a bolt. Step b4: Wrap the outer wall of the cylinder barrel tightly with a plastic film and tie it firmly. Step b5: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel onto the plating tank assembly. Connect the anode plug to the anode seat, connect the cathode plug to the cathode seat, and the electrolyte solution in the tank body completely submerges the cylinder barrel. Step b6: Connect the condensed water, turn on the power supply, and electroplate the inner wall of the cylinder barrel alone according to the set process parameters.

9. A method for electroplating a heavy-duty oil cylinder barrel using the heavy-duty oil cylinder barrel inner and outer wall electroplating device according to any one of claims 1-6, comprising the following steps: Step S1: Select an insulating clamping plate that can completely cover the port of the cylinder barrel. Insert the straight rod section of the auxiliary anode rod into the center of the inner hole of the cylinder barrel, and tighten the locking nuts at both ends. The two insulating clamping plates clamp the cylinder barrel tightly. Step S2: Hang the combination of the hanging tooling and the cylinder barrel on the insulating block on the anode bar to disconnect the auxiliary anode rod from the anode. Step S3: Connect one end of a wire to the terminal on the end face of the cylinder barrel, and connect the other end to the wiring through hole of the cathode bar with a bolt. Step S4: Lift the combination of the flying bar assembly, the hanging tooling and the cylinder barrel onto the plating tank assembly. Connect the anode plug to the anode seat and the cathode plug to the cathode seat. The electrolyte solution in the tank completely submerges the cylinder barrel. Step S5: Turn on the condensed water, turn on the power supply, and electroplate the outer wall of the cylinder barrel alone according to the set process parameters.

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