Long polish rod electroplating tool

Abstract

The invention relates to the technical field of electroplating equipment, in particular to a long polish rod electroplating tool which comprises a workbench, the workbench is provided with two fixing seats, the two fixing seats are installed on the two sides of the top face of the workbench respectively, and in the electroplating process of a long polish rod, a rotating mechanism drives a transversely-arranged cylindrical electroplating tank to rotate; the long polished rod is driven to slowly rotate in the electroplating bath, so that all parts of the long polished rod are in contact with electroplating liquid, and compared with traditional electroplating equipment, the equipment has the advantages that the electroplating effect is more uniform, and a formed plating layer is more complete; in the electroplating process of the long polished rod, harmful gas volatilized into the electroplating bath due to ionization and other reactions in the electroplating liquid is effectively treated under the cooperation of the negative pressure machine and the filter box, the positive effect on the working environment of workers is achieved, and after electroplating is completed, the working efficiency is greatly improved. And the through hole formed by the semi-annular plate I and the semi-annular plate II on the single side can be blocked, so that harmful gas is prevented from escaping out of the electroplating bath.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating equipment, in particular to a long polished rod electroplating tool. Background Art

[0002] Long polished rods, such as hydraulic piston rods, are widely used in various mechanical equipment. In order to improve their service life and performance, they are usually electroplated on the surface, such as chrome, nickel, zinc, copper, etc. However, the existing electroplating technology has many shortcomings when applied to long polished rods.

[0003] In the existing electroplating process, the electroplating solution often contains a variety of substances that are harmful to the human body. When the electroplating solution is energized, these harmful substances will evaporate into the air at a relatively fast speed, causing pollution to the operating environment.

[0004] In addition, for the electroplating treatment of the long polished rod, the prior art generally adopts the hanging plating method. Specifically, the long polished rod is hung on the hanger, and then the negative pole of the power supply is connected to the long polished rod, and the long polished rod is immersed in the electroplating solution through the hanger, and the power supply is turned on for electroplating. However, due to the long length of the long polished rod, the electroplating tank often needs to be set deeper, which not only increases the danger of the electroplating operation, but also makes it laborious and inconvenient to transport the long polished rod to the top of the electroplating tank.

[0005] More importantly, during the plating process, it is often difficult to form a uniform coating on the parts where the hanger, the negative electrode wire and the long polished rod are in contact, or even impossible to form a coating in some cases. This not only affects the plating quality of the long polished rod, but also limits the use effect of the plating tooling.

[0006] In summary, the existing electroplating technology has problems such as environmental pollution, high operational risk, inconvenient transportation and uneven coating when applied to long polished rods, which need to be improved urgently. To this end, we propose a long polished rod electroplating tooling. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a long polished rod electroplating tool, including a workbench, a fixed seat is installed on the workbench, and there are two fixed seats, which are respectively installed on both sides of the top surface of the workbench, and the fixed seats are rotatably connected with bearings, and a plating tank is installed through the bearing, and the plating tank stores plating liquid. The plating tank consists of a support tube and a semi-cylinder rotatably connected to the support tube. The two ends of the support tube are annular, and the middle is a semi-circular shape that connects the two ends annularly, and a male buckle is installed on the support tube, and a female buckle is installed on the semi-cylinder, and it also includes: Semi-annular plate 1, there are two semi-annular plates 1, which are respectively installed at two sides of the semicircular part in the middle of the support tube; Semi-annular plates 2, the number of which is the same as that of the semi-annular plates 1, are installed in the semi-cylinder and arranged correspondingly to the semi-annular plates 1; Conductive rods, wherein a plurality of the conductive rods are arranged in a ring array and distributed in the support cylinder and the semi-circular cylinder, and the two ends of the conductive rods respectively penetrate the semi-circular plate 1 and the semi-circular plate 2, and the conductive rods are made of an inert conductive material or a metal material coated with an inert conductive coating; A conductive ring, which is mounted on one end of the support tube and fixed to the inner wall of the annular portion of the support tube, and is connected to the negative electrode of the power supply required in the electroplating process; A rotating mechanism, which is installed on the workbench and connected to the supporting cylinder, and drives the electroplating tank to rotate, and drives the electroplated parts to rotate in the electroplating tank; A conducting mechanism, which is mounted on the support tube and connected to the conductive ring and fits with one end of the conductive rod. The conducting mechanism transmits the negative current on the conductive ring to the conductive rod located near the workpiece to be plated, and the workpiece to be plated is in a cathode state through the contact between the workpiece to be plated and the conductive rod. The filtering mechanism is installed on the workbench and is located at the end of the support tube away from the conductive ring. The filtering mechanism filters harmful gases generated during the electroplating process.

[0008] In some embodiments, the rotating mechanism includes a servo motor mounted on a workbench, a first gear is sleeved on a driving shaft of the servo motor, an outer gear ring is sleeved on one end of the support tube close to the servo motor, and the first gear and the outer gear ring are meshed with each other.

[0009] In some embodiments, the conduction mechanism includes a fixed ring installed at one end of the support tube near the servo motor, and the fixed ring is provided with slide grooves. The number of slide grooves is the same as the number of conductive rods and is distributed one-to-one. A telescopic rod 1 is installed in each slide groove, one end of the telescopic rod 1 is connected to the conductive ring, and the other end is provided with a conductive column. A tension spring is provided in the telescopic rod 1. The conduction mechanism also includes a limiting member installed on the conductive column, and the limiting member drives the conductive rod to contact the corresponding conductive rod only when it moves to the lower position in the electroplating tank.

[0010] In some embodiments, the limiting member includes a fixed block installed on the conductive column, the fixed block is provided with a guide groove, a support block is installed on the workbench, support rods are relatively installed on the support block, and the ends of the two support rods away from the support block are connected by a guide plate, and the guide plate is arc-shaped when viewed from the front and from above.

[0011] In some embodiments, the filtering mechanism includes a semicircular cover installed on a semicircular plate one and a semicircular plate two away from the conductive ring, the inner diameter of the semicircular cover is equal to the inner diameter of the semicircular plate one, and the inner walls are provided with rubber sheets, a filter box is installed on the rubber sheet on the support tube, and the filter box is detachable, a negative pressure machine is installed on the workbench, the negative pressure machine is connected with a hose, and a metal ring is sleeved on one end of the hose away from the negative pressure machine, a blocking cover is rotatably connected to the metal ring, the inner diameter of the blocking cover is equal to the inner diameter of the semi-cylinder, and the side opposite to the semi-cylinder is made of rubber, the filtering mechanism also includes a switching member installed on the semi-circular plate one and the semi-circular plate two on the corresponding side, when the two ends of the support tube and the semi-cylinder are in contact, the switching member drives the blocking cover to connect with the electroplating tank through the semicircular cover, and when the semi-cylinder rotates away from the support tube, the contact between the blocking cover and the semi-cylinder is disconnected.

[0012] In some embodiments, the switching member includes two telescopic rods relatively installed on a semi-circular plate one close to the side of the negative pressure machine, and a compression spring is arranged inside the two telescopic rods. An L rod is fixed to the end of the two telescopic rods away from the semi-circular plate one, and the L rod is respectively fixed to the two ends of the blocking cover. An extrusion groove is mirrored on the L rod, and the upper part of the extrusion groove is trapezoidal, and the lower part is square. A trigger rod is relatively installed on the semi-circular plate two on the corresponding side, and the trigger rod is L-shaped, and one end is a slope.

[0013] In some embodiments, a discharge groove is provided on the top surface of the workbench.

[0014] In some embodiments, a sealing cover is provided in a matching through hole formed by the cooperation of the semi-annular plate 1 and the semi-annular plate 2 on one side close to the servo motor.

[0015] The present invention has at least the following beneficial effects: 1. During the electroplating process of the long polished rod, the rotating mechanism drives the horizontal cylindrical electroplating tank to rotate, driving the long polished rod to rotate slowly in the electroplating tank, so that all parts of the long polished rod are in contact with the electroplating liquid. Compared with traditional electroplating equipment, the electroplating effect of this equipment is more uniform, and the formed coating is more complete; 2. During the electroplating process of the long light rod, the harmful gases volatilized into the electroplating tank by the electroplating solution due to ionization and other reactions are effectively treated with the cooperation of the negative pressure machine and the filter box, which has a positive effect on the working environment of the workers. After the electroplating is completed, the through holes formed by the semi-circular plate 1 and the semi-circular plate 2 on one side can be blocked to prevent the harmful gases from escaping from the electroplating tank; 3. Compared with the traditional rack plating, this device is more convenient to place and take out the long polished rod, and is safer during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a rear view structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 It is a schematic diagram of the top view structure of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B in the middle; Figure 7 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at C in the middle; Fig. 9 It is a schematic diagram of the sealing cover structure of the present invention.

[0017] In the figure: 1, workbench; 11, fixed seat; 12, bearing; 13, electroplating tank; 131, support cylinder; 132, semi-cylinder; 14, male buckle; 15, female buckle; 16, discharge slot; 2, semi-circular plate 1; 3, semi-circular plate 2; 4, conductive rod; 5, conductive ring; 6, rotating mechanism; 61, servo motor; 62, first gear; 63, outer gear ring; 7, conduction mechanism; 71, fixed ring; 72, slide groove; 73, telescopic rod 1; 74, conductive column; 75 , tension spring; 76, limiting member; 761, fixing block; 762, guide groove; 763, supporting block; 764, supporting rod; 765, guide plate; 8, filtering mechanism; 81, semicircular cover; 82, rubber sheet; 83, filter box; 84, negative pressure machine; 85, hose; 86, metal ring; 87, blocking cover; 88, switching member; 881, telescopic rod 2; 882, compression spring; 883, L rod; 884, extrusion groove; 885, trigger rod; 9, sealing cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: See also Figure 1-Figure 8The present invention provides a technical solution: a long polished rod electroplating tool, comprising a workbench 1, a fixed seat 11 is installed on the workbench 1, there are two fixed seats 11, which are respectively installed at the two sides of the top surface of the workbench 1, and the fixed seats 11 are rotatably connected with bearings 12, and a plating tank 13 is installed through the bearing 12, and the plating tank 13 stores the plating liquid, and the plating tank 13 consists of a support cylinder 131 and a semi-cylinder 132 rotatably connected to the support cylinder 131. The two ends of the support cylinder 131 are annular, and the middle is a semi-circular shape that connects the two ends in annular shapes. A male buckle 14 is installed on the support cylinder 131, and a female buckle 15 is installed on the semi-cylinder 132, and also includes: There are two semi-circular plates 12, which are respectively installed on both sides of the semicircular part in the middle of the support tube 131; Semi-annular plates 2 3, the number of which is the same as that of semi-annular plates 1 2, are installed in the semi-cylinder 132 and arranged corresponding to the semi-annular plates 1 2; Conductive rods 4, a plurality of conductive rods 4 are provided, distributed in a ring array in the support cylinder 131 and the semi-circular cylinder 132, and the two ends respectively penetrate the semi-circular plate 1 2 and the semi-circular plate 2 3, and the conductive rods 4 are made of an inert conductive material or a metal material coated with an inert conductive coating; Conductive ring 5, which is installed at one end of the support tube 131 and fixed to the inner wall of the annular portion of the support tube 131, and is connected to the negative electrode of the power supply required in the electroplating process; In the long-term statistical process, most of the coatings chosen for long smooth rods are chromium layers, and a small number of them are nickel layers or zinc layers. For the processing of such coatings, aluminum alloy rods with a surface plated with not less than 0.2 mm silver can be used as electroplated rods. The cost of use is low and it will not react with the electroplating solution.

[0020] The rotating mechanism 6 is installed on the workbench 1 and connected to the supporting cylinder 131. The rotating mechanism 6 drives the electroplating tank 13 to rotate, and drives the electroplated parts to rotate in the electroplating tank 13; The conducting mechanism 7 is installed on the support tube 131 and connected to the conductive ring 5 and fits with the corresponding end of the conductive rod 4. The conducting mechanism 7 transmits the negative current on the conductive ring 5 to the conductive rod 4 located near the workpiece to be plated, and the workpiece to be plated is in a cathode state through the contact between the workpiece to be plated and the conductive rod 4; The filter mechanism 8 is installed on the workbench 1 and is located at the end of the support tube 131 away from the conductive ring 5. The filter mechanism 8 filters harmful gases generated during the electroplating process.

[0021] The rotating mechanism 6 includes a servo motor 61 mounted on the workbench 1 . A first gear 62 is sleeved on the driving shaft of the servo motor 61 . An outer gear ring 63 is sleeved on one end of the support cylinder 131 close to the servo motor 61 . The first gear 62 and the outer gear ring 63 are meshed with each other.

[0022] For some light-weight long polished rods, the staff can directly insert them into the electroplating tank 13 through the through hole formed between the semi-annular plate 12 and the semi-annular plate 23 near one end of the servo motor 61. For heavy-weight long polished rods, the staff rotates the plane part of the semi-annular plate 2 to a horizontal plane parallel to the ground through the servo motor 61, releases the connection between the male buckle 14 and the female buckle 15, and rotates the semi-cylinder 132, so that the long polished rod can be placed in the support cylinder 131 through the sling, and then reset in sequence. It should be noted that during the electroplating process, the servo motor 61 runs at a lower power, and the diameter of the first gear 62 on the driving shaft of the servo motor 61 is much smaller than the outer gear ring 63. The outer gear ring 63 drives the electroplating tank 13 to rotate at a further reduced rate. The slow rotation of the electroplating tank 13 can prevent the newly formed coating of the long light rod from being separated from the conductive rod 4 due to contact. At the same time, under the action of the long light rod's own gravity, it is always located at the bottom of the inner wall of the electroplating tank 13, and rotates slowly synchronously with the rotation of the electroplating tank 13, so that the surface of the long light rod is electroplated without dead angles, and the electroplating liquid can be prevented from splashing to the outside due to too fast rotation.

[0023] The conduction mechanism 7 includes a fixed ring 71 installed at one end of the support tube 131 close to the servo motor 61, and a slide groove 72 is opened on the fixed ring 71. The number of the slide grooves 72 is the same as the number of the conductive rods 4, and they are distributed one by one. A telescopic rod 73 is installed in the slide groove 72. One end of the telescopic rod 73 is connected to the conductive ring 5, and the other end is installed with a conductive column 74. A tension spring 75 is arranged in the telescopic rod 73. The conduction mechanism 7 also includes a limiting member 76 installed on the conductive column 74. The limiting member 76 drives the conductive rod 4 to contact the corresponding conductive rod 4 only when it moves to the lower position in the electroplating tank 13.

[0024] The limiting member 76 includes a fixed block 761 installed on the conductive column 74, and the fixed block 761 is provided with a guide groove 762. A support block 763 is installed on the workbench 1, and support rods 764 are relatively installed on the support block 763. The two support rods 764 are connected by a guide plate 765 at one end away from the support block 763. The guide plate 765 is arc-shaped when viewed from the front and from above. Specifically, the guide plate 765 is an arc-shaped coaxial with the support tube 131, and the middle part protrudes toward the center of the support tube 131.

[0025] In the process of the rotating mechanism 6 driving the electroplating tank 13 to rotate, since the telescopic rod 73 contacts the conductive ring 5, the conductive ring 5 transmits the negative current to the conductive column 74 through the telescopic rod 73, and the conductive column 74 is subjected to a force away from the conductive rod 4 under the action of the tension spring 75. As the electroplating tank 13 rotates, the fixed block 761 is driven to rotate synchronously through the slide groove 72, the telescopic rod 73, and the conductive column 74. The guide groove 762 on the fixed block 761 is squeezed by the guide plate 765 and approaches the long optical rod. At the same time, it gradually drives the conductive column 74 to approach the conductive rod 4 and finally fits with the conductive rod 4, transmitting the negative current to the long optical rod through the conductive rod 4, thereby driving the long optical rod to a negative state for electroplating. The design that only the conductive rod 4 located near the long optical rod transmits the negative current makes the current efficiently utilized. At the same time, the conductive rod 4 will have a longer period of time without carrying the negative current, avoiding the situation where the coating or substrate is unstable due to long-term carrying of the negative current and contact with the plating solution.

[0026] The filtering mechanism 8 includes a semicircular cover 81 installed on the semicircular plate 1 2 and the semicircular plate 2 3 away from the conductive ring 5. The inner diameter of the semicircular cover 81 is equal to the inner diameter of the semicircular plate 1 2, and the inner wall is provided with a rubber sheet 82. A filter box 83 is installed on the rubber sheet 82 on the support cylinder 131. The filter box 83 is detachable. A negative pressure machine 84 is installed on the workbench 1. The negative pressure machine 84 is connected to a hose 85. One end of the hose 85 away from the negative pressure machine 84 is sleeved with a metal ring 86, and a sealing ring 86 is rotatably connected to the metal ring 86. The blocking cover 87 has an inner diameter equal to that of the semi-cylinder 132, and the side opposite to the semi-cylinder 132 is made of rubber. The filtering mechanism 8 also includes a switching member 88 installed on the semi-annular plate 1 2 and the semi-annular plate 2 3 on the corresponding side. When the switching member 88 is in contact with both ends of the support cylinder 131 and the semi-cylinder 132, the blocking cover 87 is driven to communicate with the electroplating tank 13 through the semi-circular cover 81. When the semi-cylinder 132 rotates away from the support cylinder 131, the contact between the blocking cover 87 and the semi-cylinder 132 is disconnected.

[0027] The switching member 88 includes a telescopic rod 881 relatively installed on a semi-circular plate 2 close to the side of the negative pressure machine 84, and a compression spring 882 is arranged inside the telescopic rod 881. An L-rod 883 is fixed to the end of the telescopic rod 881 away from the semi-circular plate 2. The L-rod 883 is respectively fixed to the two ends of the blocking cover 87. An extrusion groove 884 is mirror-imaged on the L-rod 883. The upper part of the extrusion groove 884 is trapezoidal, and the lower part is square. A trigger rod 885 is relatively installed on the semi-circular plate 23 on the corresponding side. The trigger rod 885 is L-shaped, and one end is a slope.

[0028] During the electroplating process of the long light rod, the negative pressure machine 84 is turned on, the plating tank 13 is always in a negative pressure state, and the air flow flows toward the negative pressure machine 84. The through hole formed between the semi-annular plate 1 2 and the semi-annular plate 2 3 near one end of the servo motor 61 becomes an air inlet to replenish the gas in the plating tank 13. Due to the electrolytic reaction in the plating tank 13, the harmful gas generated by the plating liquid passes through the filter box 83 during the process of flowing to the negative pressure machine 84. The filter box 83 filters the harmful substances therein to prevent the harmful substances from entering the outside.

[0029] After the long polished rod is electroplated, the power supply in the electroplating system is turned off. At this time, the evaporation rate of the plating solution that has lost current is greatly reduced, and the negative pressure machine 84 continues to operate for a period of time to ensure that the concentration of harmful gases in the electroplating tank 13 drops to a safe range. Then the negative pressure machine 84 stops working, and the servo motor 61 rotates the plane part of the semi-annular plate 2 to the same level as the ground, releases the connection between the male buckle 14 and the female buckle 15, opens the semi-cylinder 132, and the long polished rod that has been electroplated can be taken out.

[0030] In the process of opening the semi-cylinder 132, the trigger rod 885 connected to the semi-annular plate 23 on the semi-cylinder 132 disengages from the extrusion groove 884 of the L rod 883. Under the action of the compression spring 882, the telescopic rod 2881 extends, and drives the blocking cover 87 away from the semi-circular cover 81 through the L rod 883, making the subsequent opening more labor-saving and increasing the operable space when replacing the filter box 83. Conversely, in the process of closing the semi-cylinder 132, the trigger rod 885 squeezes the extrusion groove 884 on the L rod 883, and finally drives the blocking cover 87 to fit with the two combined semi-cylinders 132, completing the sealing of the fitting part with the semi-circular cover 81.

[0031] Embodiment 2: See also Figure 1 , Fig. 9 Based on Example 1, the present invention further optimizes this solution: A discharge slot 16 is provided on the top surface of the workbench 1 .

[0032] When the plating liquid in the plating tank 13 needs to be replaced or discharged, a device for recovering the waste liquid is placed at the bottom of the discharge tank 16, and the planar part of the semi-annular plate 2 is rotated to the same horizontal plane as the ground by the servo motor 61, and the connection between the male buckle 14 and the female buckle 15 is released. The servo motor 61 drives the plating tank 13 to gradually tilt, so that the plating liquid flows into the device for recovering the waste liquid.

[0033] A sealing cover 9 is provided in a matching manner on the through hole formed by the cooperation of the semi-annular plate 1 2 and the semi-annular plate 2 3 on the side close to the servo motor 61 .

[0034] When the equipment is not in use, if the plating liquid in the plating tank 13 wants to evaporate to the outside, it can only pass through the through hole formed between the two semi-annular plates 1 2 and 3. A filter box 83 is provided on the side close to the negative pressure machine 84, and the other side can be sealed by a sealing cover 9 to prevent harmful substances from entering the outside air.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long polished rod electroplating tool, comprising a workbench (1), wherein a fixed seat (11) is installed on the workbench (1), wherein the fixed seat (11) has two fixed seats (11), which are respectively installed at two sides of the top surface of the workbench (1), wherein the fixed seats (11) are rotatably connected to a bearing (12), wherein a plating tank (13) is installed through the bearing (12), wherein the plating tank (13) stores a plating liquid, wherein the plating tank (13) consists of a support tube (131) and a semi-cylinder (132) rotatably connected to the support tube (131), wherein the two ends of the support tube (131) are annular, and the middle is a semi-circular shape connecting the two ends, wherein a male buckle (14) is installed on the support tube (131), and a female buckle (15) is installed on the semi-cylinder (132), wherein the feature is that: Also includes: Semi-annular plate one (2), two of the semi-annular plates one (2) are installed respectively at two sides of the middle semi-circular portion of the support cylinder (131); Semi-annular plates 2 (3), the number of the semi-annular plates 2 (3) being the same as the number of the semi-annular plates 1 (2), being installed in the semi-cylinder (132) and arranged corresponding to the semi-annular plates 1 (2); Conductive rods (4), wherein a plurality of the conductive rods (4) are provided and distributed in a ring array inside the support cylinder (131) and the semi-circular cylinder (132), and the two ends of the conductive rods respectively penetrate the semi-circular plate 1 (2) and the semi-circular plate 2 (3), and the conductive rods (4) are made of an inert conductive material or a metal material coated with an inert conductive coating; A conductive ring (5), the conductive ring (5) being mounted on one end of the support tube (131) and fixed to the inner wall of the annular portion of the support tube (131), and the conductive ring (5) being connected to the negative electrode of a power source required in the electroplating process; A rotating mechanism (6), the rotating mechanism (6) being mounted on the workbench (1) and connected to the supporting cylinder (131), the rotating mechanism (6) driving the electroplating tank (13) to rotate, driving the electroplated parts to rotate in the electroplating tank (13); A conduction mechanism (7), the conduction mechanism (7) being mounted on the support tube (131), connected to the conductive ring (5), and in contact with a corresponding end of the conductive rod (4), the conduction mechanism (7) transmitting the negative current on the conductive ring (5) to the conductive rod (4) located near the workpiece to be plated, so that the workpiece to be plated is in a cathode state through contact between the workpiece to be plated and the conductive rod (4); A filtering mechanism (8) is installed on the workbench (1) and is located at an end of the support cylinder (131) away from the conductive ring (5). The filtering mechanism (8) filters harmful gases generated during the electroplating process.

2. The long polished rod electroplating tooling according to claim 1, characterized in that: The rotating mechanism (6) comprises a servo motor (61) mounted on the workbench (1); a first gear (62) is sleeved on a driving shaft of the servo motor (61); an outer gear ring (63) is sleeved on one end of the support cylinder (131) close to the servo motor (61); the first gear (62) and the outer gear ring (63) are meshed with each other.

3. The long polished rod electroplating tool according to claim 2, characterized in that: The conduction mechanism (7) comprises a fixed ring (71) mounted on one end of the support tube (131) close to the servo motor (61), the fixed ring (71) is provided with a slide groove (72), the number of the slide grooves (72) is the same as the number of the conductive rods (4), and they are distributed one to one, each of the slide grooves (72) is provided with a telescopic rod (73), one end of the telescopic rod (73) is connected to the conductive ring (5), and the other end is provided with a conductive column (74), a tension spring (75) is provided in the telescopic rod (73), and the conduction mechanism (7) further comprises a limiting member (76) mounted on the conductive column (74), the limiting member (76) drives the conductive rod (4) to contact the corresponding conductive rod (4) only when it moves to a lower position in the electroplating tank (13).

4. The long polished rod electroplating tooling according to claim 3, characterized in that: The limiting member (76) comprises a fixing block (761) mounted on the conductive column (74), the fixing block (761) being provided with a guide groove (762), a supporting block (763) being mounted on the workbench (1), supporting rods (764) being mounted opposite to the supporting block (763), and two ends of the two supporting rods (764) being away from the supporting block (763) being connected via a guide plate (765), the guide plate (765) being arc-shaped in both front and top views.

5. The long polished rod electroplating tool according to claim 1, characterized in that: The filtering mechanism (8) comprises a semicircular cover (81) mounted on a semicircular plate 1 (2) and a semicircular plate 2 (3) away from the conductive ring (5); the inner diameter of the semicircular cover (81) is equal to the inner diameter of the semicircular plate 1 (2), and the inner wall of the semicircular cover (81) is provided with a rubber sheet (82); a filter box (83) is mounted on the rubber sheet (82) on the support cylinder (131); the filter box (83) is detachable; a negative pressure machine (84) is mounted on the workbench (1); a hose (85) is connected to the negative pressure machine (84); a metal ring (86) is sleeved on one end of the hose (85) away from the negative pressure machine (84); and a rubber ring (86) is provided on the metal ring (86). A blocking cover (87) is rotatably connected, the inner diameter of the blocking cover (87) is equal to the inner diameter of the semi-cylinder (132), and the side opposite to the semi-cylinder (132) is made of rubber. The filtering mechanism (8) also includes a switching member (88) mounted on the semi-circular plate 1 (2) and the semi-circular plate 2 (3) on the corresponding side. When both ends of the supporting cylinder (131) and the semi-cylinder (132) are in contact, the switching member (88) drives the blocking cover (87) to communicate with the electroplating tank (13) through the semi-circular cover (81), and when the semi-cylinder (132) rotates away from the supporting cylinder (131), the contact between the blocking cover (87) and the semi-cylinder (132) is disconnected.

6. The long polished rod electroplating tooling according to claim 5, characterized in that: The switching member (88) comprises a telescopic rod (881) relatively mounted on a semi-circular plate (2) on a side close to the negative pressure machine (84), a compression spring (882) being arranged inside the telescopic rod (881), an L-rod (883) being fixed to one end of the telescopic rod (881) away from the semi-circular plate (2), the L-rod (883) being respectively fixed to two ends of the blocking cover (87), an extrusion groove (884) being mirror-imaged on the L-rod (883), the upper part of the extrusion groove (884) being trapezoidal in shape and the lower part being square in shape, a trigger rod (885) being relatively mounted on the semi-circular plate (3) on the corresponding side, the trigger rod (885) being L-shaped and having an inclined surface at one end.

7. The long polished rod electroplating tool according to claim 1, characterized in that: The top surface of the workbench (1) is provided with a discharge groove (16).

8. The long polished rod electroplating tooling according to claim 2, characterized in that: A sealing cover (9) is provided in conjunction with the through hole formed by the cooperation of the semi-annular plate 1 (2) and the semi-annular plate 2 (3) on one side close to the servo motor (61).

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