A device for the galvanic coating of a sickle tube

Abstract

The application provides a kind of sickle pipe plating device, comprising: working tank, multiple are provided, and sequentially distributed between feeding station and discharging station;Working tank is sequentially oil removal working tank, pickling working tank, alkali cleaning working tank, plating working tank and post-plating rinsing working tank;Rotary bearing mechanism, multiple groups are provided, and are respectively arranged in oil removal working tank, pickling working tank, alkali cleaning working tank and post-plating rinsing working tank, and rotary bearing mechanism is matched with loading tooling;Lifting rotary mechanism, arranged in plating working tank, lifting rotary mechanism is matched with loading tooling;Transportation mechanism, arranged above feeding station, working tank and discharging station, transportation mechanism is matched with loading tooling.The scheme of the application drives loading tooling to lift and rotate by lifting rotary mechanism, and uses lifting rotary mechanism to flush the bubble on the inner and outer surface of sickle pipe, to solve the uneven thickness of coating on the inner and outer wall of sickle pipe, plating leakage, rough coating and other defects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical plating device, in particular to a sickle pipe chemical plating device. BACKGROUND

[0002] When the chemical nickel plating of the sickle pipe is carried out, the structure of the sickle pipe is too complex, the wall is thin, the diameter is variable, and the quality requirements of the inner and outer pipe wall plating layer are high. The plating layer quality of the commonly used chemical plating device cannot meet the requirements. A large amount of hydrogen gas is generated in the normal plating process of the commonly used chemical plating device, which is adsorbed on the inner and outer surfaces of the pipe in the form of small bubbles, resulting in incomplete plating of the outer wall. The flow channel of the inner wall is blocked by the bubbles, the plating solution does not flow, and there are many defects such as uneven thickness of the inner and outer wall plating layer, plating omission, and rough plating layer. SUMMARY

[0003] The present application provides a sickle pipe chemical plating device to solve the problem that hydrogen gas generated in the plating process is adsorbed on the inner and outer surfaces of the pipe in the form of small bubbles, resulting in incomplete plating of the outer wall. The flow channel of the inner wall is blocked by the bubbles, the plating solution does not flow, and there are many defects such as uneven thickness of the inner and outer wall plating layer, plating omission, and rough plating layer.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows:

[0005] A sickle pipe chemical plating device, comprising:

[0006] A plurality of working tanks are arranged between the feeding station and the discharging station.

[0007] The working tanks are sequentially arranged as an oil removal working tank, an acid pickling working tank, an alkali pickling working tank, a plating working tank, and a post-plating rinsing working tank.

[0008] A plurality of rotating bearing mechanisms are arranged inside the oil removal working tank, the acid pickling working tank, the alkali pickling working tank, and the post-plating rinsing working tank, and the rotating bearing mechanisms are matched with the loading tooling.

[0009] A lifting and rotating mechanism is arranged inside the plating working tank, and the lifting and rotating mechanism is matched with the loading tooling.

[0010] A conveying mechanism is arranged above the feeding station, the working tanks, and the discharging station, and the conveying mechanism is matched with the loading tooling.

[0011] Optionally, the oil removal working tank comprises:

[0012] An ultrasonic cleaning tank and an ultrasonic rinsing tank are sequentially arranged, and both the ultrasonic cleaning tank and the ultrasonic rinsing tank are provided with two groups.

[0013] Optionally, the acid pickling working tank comprises:

[0014] There are two pickling tanks, arranged sequentially.

[0015] The first bubbling rinsing tank is provided in two sets, and the two sets of the first bubbling rinsing tanks are respectively located after the two soaking pickling tanks.

[0016] Optionally, the alkaline washing working tank includes:

[0017] The soaking alkaline washing tank and the second bubbling rinsing tank are set up in sequence.

[0018] Optionally, the transportation agency includes:

[0019] A fixed track is provided above the loading station, the working trough, and the unloading station.

[0020] The mobile vehicle is mounted on a fixed track.

[0021] A lifting mechanical gripper is mounted on a traveling vehicle, and the lifting mechanical gripper is adapted to the loading fixture.

[0022] Optionally, four traveling vehicles are provided, and each of the four traveling vehicles is equipped with a lifting mechanical claw. The four traveling vehicles correspond to the degreasing working tank, the pickling working tank and the alkaline washing working tank, the plating working tank and the post-plating rinsing working tank, respectively.

[0023] Optionally, the loading fixture includes:

[0024] A gripping rod is set on the surface of the support base. The upper end of the gripping rod has an inverted conical structure and is adapted to the gripping end of the lifting mechanical claw.

[0025] A support cylinder is disposed on the bottom surface of the support base and extends vertically;

[0026] A bearing ring is fitted onto the outside of the bearing cylinder. Multiple bearing rings are provided and are evenly distributed along the axial direction of the bearing cylinder.

[0027] An insertion cavity is provided on the outer circumference side of the bearing ring. The insertion cavity is inserted into the large diameter end of the sickle-shaped pipe fitting. Multiple insertion cavities are provided and are evenly distributed around the axis of the bearing ring. A limit step is provided at the inner end of the insertion cavity.

[0028] A first threaded hole is provided on the upper surface of the bearing ring, and the first threaded hole corresponds to and communicates with the insertion cavity;

[0029] A second threaded hole is provided on the bottom surface of the bearing ring, and the second threaded hole corresponds to and communicates with the insertion cavity;

[0030] A flow guiding cavity is disposed on the bottom surface of the bearing ring, and the flow guiding cavity is connected to the insertion cavity;

[0031] An expansion cavity is disposed on the bottom surface of the bearing ring, and the expansion cavity is connected to the flow guiding cavity;

[0032] A transmission block is disposed on the bottom surface of the bearing seat and located inside the bearing cylinder, and the bottom surface of the transmission block is provided with a insertion groove.

[0033] The loading station and unloading station are each equipped with a positioning post, which is inserted into the bearing cylinder.

[0034] Optionally, the rotating bearing mechanism includes:

[0035] A first sealing tube is disposed inside the degreasing working tank, the pickling working tank, the alkaline washing working tank, and the post-plating rinsing working tank. The upper end of the first sealing tube extends toward the port of the degreasing working tank, the pickling working tank, the alkaline washing working tank, and the post-plating rinsing working tank. The bottom end of the first sealing tube penetrates the bottom surface of the degreasing working tank, the pickling working tank, the alkaline washing working tank, and the post-plating rinsing working tank, and is sealed to the bottom surface of the degreasing working tank, the pickling working tank, the alkaline washing working tank, and the post-plating rinsing working tank.

[0036] The first bearing shaft is rotatably disposed inside the first sealing tube. The upper end of the first bearing shaft extends out of the upper port of the first sealing tube and is connected to a first insert block. The first insert block is inserted into the insertion groove. The bottom end of the first bearing shaft passes through the bottom port of the first sealing tube.

[0037] A first rotary motor is provided with a first transmission pulley at both the output end of the first rotary motor and the bottom end of the first bearing shaft, and a first transmission belt is meshed between the two first transmission pulleys.

[0038] Optionally, the lifting and rotating mechanism includes:

[0039] The second sealing tube is installed inside the plating working tank. The upper end of the second sealing tube extends toward the port of the plating working tank, and the bottom end of the second sealing tube penetrates through the bottom surface of the plating working tank and is sealed to the bottom surface of the plating working tank.

[0040] The guide post extends vertically, and two guide posts are provided and symmetrically arranged on both sides of the plating working tank.

[0041] A lifting frame is installed below the plating work tank, and the two sides of the lifting frame are slidably engaged with two guide columns respectively;

[0042] The second bearing shaft is rotatably mounted on the surface of the lifting frame. The upper end of the second bearing shaft passes through the upper port of the second sealing tube and is connected to a second insert block. The second insert block is inserted into the insertion slot. The bottom end of the second bearing shaft extends through to the bottom of the lifting frame.

[0043] A second rotary motor is provided on the surface of the lifting frame. A second transmission pulley is provided at the output end of the second rotary motor and at the bottom end of the second bearing shaft. A second transmission belt is meshed between the two second transmission pulleys.

[0044] The lifting drive shaft is horizontally arranged on the outside of the lifting frame. There are two lifting drive shafts, which are respectively close to the second bearing shaft and the second rotary motor.

[0045] A lifting drive shaft is rotatably mounted below the lifting frame via a bearing housing;

[0046] Two cams are fixedly mounted on the outside of the lifting drive shaft, and each cam abuts against one of the two lifting drive shafts.

[0047] The lifting motor has a transmission sprocket at its output end and at the end of the lifting drive shaft, and a chain is meshed between the two transmission sprockets.

[0048] Optionally, the sickle-shaped tube plating apparatus further includes:

[0049] The exhaust system has multiple intake pipes, which correspond to the chemical solution inlets of the ultrasonic cleaning tank, the immersion pickling tank, the immersion alkaline washing tank, and the plating working tank, respectively.

[0050] A circulating filtration system, wherein multiple circulating filtration systems are provided and are respectively installed inside the ultrasonic cleaning tank and the plating working tank;

[0051] The heating system comprises multiple heating systems, which are respectively installed inside the ultrasonic cleaning tank and the plating working tank;

[0052] The cooling system is located inside the plating tank.

[0053] The above-described solution of the present invention has at least the following beneficial effects:

[0054] The above-mentioned solution of the present invention uses a lifting and rotating mechanism to drive the loading fixture to lift and rotate, and uses the lifting and rotating mechanism to flush out air bubbles on the inner and outer surfaces of the sickle-shaped tube, thereby solving various defects such as uneven coating thickness, incomplete coating, and rough coating on the inner and outer walls of the sickle-shaped tube. The transport mechanism drives the loading fixture to move between the loading station, the working tank, and the unloading station, and works with the working tank to achieve fully automated coating of thin-walled sickle-shaped tubes, meeting the coating quality requirements and batch use requirements. Attached Figure Description

[0055] Figure 1 This is a front view of the sickle-shaped tube plating apparatus provided in an embodiment of the present invention;

[0056] Figure 2 This is a right view of the sickle-shaped tube plating apparatus provided in an embodiment of the present invention;

[0057] Figure 3 This is a schematic diagram of the loading fixture in the sickle-shaped tube plating apparatus provided in an embodiment of the present invention;

[0058] Figure 4 yes Figure 3 Enlarged schematic diagram of part A;

[0059] Figure 5 This is a top sectional view of the bearing ring in the loading fixture provided in an embodiment of the present invention;

[0060] Figure 6 This is a schematic diagram of the rotating bearing mechanism provided in an embodiment of the present invention;

[0061] Figure 7 This is a schematic diagram of the lifting and rotating mechanism provided in an embodiment of the present invention.

[0062] The annotations in the attached figures are explained as follows:

[0063] 1. Fixed track; 2. Traveling vehicle; 3. Lifting mechanical gripper; 4. Loading fixture; 401. Gripping rod; 402. Bearing seat; 403. Transmission block; 404. Insertion groove; 405. Bearing cylinder; 406. Bearing ring; 407. Insertion cavity; 408. First threaded hole; 409. Second threaded hole; 410. Limiting step; 411. Guide cavity; 412. Expansion cavity; 5. Loading station; 6. Degreasing tank; 7. Pickling tank; 8. Alkali washing tank; 9. Plating tank; 10. Post-plating rinsing tank; 11. Unloading station; 12. Positioning column; 13. Rotating bearing mechanism; 1301. First bearing shaft; 1302. First transmission pulley ; 1303, First transmission belt; 1304, First rotary motor; 1305, First insert block; 1306, First sealing tube; 14, Lifting and rotating mechanism; 1401, Lifting motor; 1402, Transmission sprocket; 1403, Guide column; 1404, Lifting frame; 1405, Second bearing shaft; 1406, Second sealing tube; 1407, Second insert block; 1408, Lifting drive shaft; 1409, Cam; 1410, Lifting transmission shaft; 1411, Second transmission pulley; 1412, Second transmission belt; 1413, Second rotary motor; 15, Exhaust system; 16, Circulating filtration system; 17, Heating system; 18, Cooling system. Detailed Implementation

[0064] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0065] like Figures 1-7 As shown, an embodiment of the present invention provides a plating apparatus for a sickle-shaped tube, comprising:

[0066] There are multiple working slots, which are arranged sequentially between the loading station 5 and the unloading station 11;

[0067] The working tanks are arranged in sequence as follows: degreasing working tank 6, pickling working tank 7, alkaline washing working tank 8, plating working tank 9, and post-plating rinsing working tank 10.

[0068] The rotating bearing mechanism 13 is provided in multiple sets, and is respectively installed inside the degreasing working tank 6, the pickling working tank 7, the alkaline washing working tank 8, and the post-plating rinsing working tank 10. The rotating bearing mechanism 13 is adapted to the loading fixture 4.

[0069] The lifting and rotating mechanism 14 is installed inside the plating work tank 9 and is adapted to the loading fixture 4.

[0070] The transport mechanism is located above the loading station 5, the working trough and the unloading station 11, and is compatible with the loading fixture 4.

[0071] In this embodiment, the loading fixture 4 with the sickle-shaped pipe fitting fixed is placed at the loading station 5. The transport mechanism moves the loading fixture 4 at the loading station 5 into the degreasing tank 6. The rotating bearing mechanism 13 inside the degreasing tank 6 drives the loading fixture 4 to rotate, thus degreasing and cleaning the sickle-shaped pipe fitting. After degreasing and cleaning, the transport mechanism moves the loading fixture 4 from the degreasing tank 6 into the pickling tank 7. The rotating bearing mechanism 13 inside the pickling tank 7 drives the loading fixture 4 to rotate, thus pickling the sickle-shaped pipe fitting. After pickling, the transport mechanism moves the loading fixture 4 from the pickling tank 7 into the alkaline washing tank 8. The rotating bearing mechanism 13 inside the alkaline washing tank 8 drives the loading fixture 4 to rotate, thus alkaline washing the sickle-shaped pipe fitting. After washing, the transport mechanism moves the loading fixture 4 inside the alkaline washing tank 8 to the plating tank 9. The lifting and rotating mechanism 14 inside the plating tank 9 drives the loading fixture 4 to rotate and reciprocate inside the plating tank 9 to plating the sickle-shaped pipe fittings. After plating is completed, the transport mechanism moves the loading fixture 4 inside the plating tank 9 to the post-plating rinsing tank 10. The rotating bearing mechanism 13 inside the post-plating rinsing tank 10 drives the loading fixture 4 to rotate to perform final cleaning of the plating sickle-shaped pipe fittings. After cleaning is completed, the transport mechanism moves the loading fixture 4 to the unloading station 11. The transport mechanism moves the loading fixture 4 between the loading station 5, the working tank, and the unloading station 11, and works with the working tank to achieve fully automated plating of thin-walled sickle-shaped pipe fittings.

[0072] During the plating process, the lifting and rotating mechanism 14 drives the loading fixture 4 to rotate inside the plating working tank 9 while reciprocating up and down. The lifting and rotating mechanism flushes away air bubbles on the inner and outer surfaces of the sickle-shaped pipe fitting, so that the plating solution can fully contact the inner and outer walls of the sickle-shaped pipe fitting. This solves various defects such as uneven plating thickness, missed plating, and rough plating on the inner and outer walls of the sickle-shaped pipe fitting, and ensures the plating quality of the inner and outer walls of the sickle-shaped pipe fitting.

[0073] In an optional embodiment of the present invention, the degreasing working tank 6 includes:

[0074] The ultrasonic cleaning tank and ultrasonic rinsing tank are arranged in sequence, and there are two sets of each type.

[0075] In this embodiment, two sets of ultrasonic cleaning tanks and two sets of ultrasonic rinsing tanks are arranged in sequence. The loading fixture 4 is placed in the two sets of ultrasonic cleaning tanks and two sets of ultrasonic rinsing tanks in sequence by the transport mechanism. The sickle-shaped pipe fittings on the loading fixture 4 are subjected to two ultrasonic cleanings and two ultrasonic rinsings in sequence to ensure that the oil stains adhering to the sickle-shaped pipe fittings are fully removed.

[0076] The first ultrasonic cleaning tank contains a high-concentration cleaning agent, while the second ultrasonic cleaning tank contains a low-concentration cleaning agent. Both tanks are kept at a temperature of 60±2℃. The ultrasonic waves, combined with the rotating bearing mechanism 13, drive the loading fixture 4 to rotate, effectively removing the oil stains adhering to the sickle-shaped pipe fittings. The concentration of the cleaning agent in the two ultrasonic cleaning tanks decreases from high to low, ensuring the effective removal of oil stains from the sickle-shaped pipe fittings while reducing the waste of cleaning agent and helping to save resources.

[0077] Both ultrasonic rinsing tanks are filled with pure water, and the water temperature is maintained at 60±2℃. The ultrasonic waves, in conjunction with the rotating bearing mechanism 13, drive the loading fixture 4 to rotate and rinse the sickle-shaped pipe fittings, which can prevent oil stains from remaining on the sickle-shaped pipe fittings.

[0078] In an optional embodiment of the present invention, the pickling tank 7 includes:

[0079] There are two pickling tanks, arranged sequentially.

[0080] The first bubbling rinsing tank is provided in two sets, and the two sets of first bubbling rinsing tanks are respectively located after the two soaking pickling tanks.

[0081] In this embodiment, each group of first bubbling rinsing tanks is provided with two, namely, the pickling working tank 7 includes a first immersion pickling tank, two first bubbling rinsing tanks, a second immersion pickling tank, and two first bubbling rinsing tanks arranged in sequence. The loading fixture 4 is driven by the transport mechanism to enter the first immersion pickling tank, the two first bubbling rinsing tanks, the second immersion pickling tank, and the two first bubbling rinsing tanks in sequence to complete the pickling of the sickle-shaped pipe fittings. This helps to improve the bonding strength of the coating on the inner and outer surfaces of the sickle-shaped pipe fittings and ensure the quality of the coating.

[0082] The first immersion pickling tank is equipped with chromic acid. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the first immersion pickling tank, so that the sickle-shaped pipe fittings come into full contact with the chromic acid. The acidity and oxidizing properties of the chromic acid are used to remove dirt and insoluble substances from the inner and outer surfaces of the sickle-shaped pipe fittings, thus achieving one-time pickling of the sickle-shaped pipe fittings.

[0083] The two first bubbling rinse tanks following the first soaking pickling tank are filled with pure water. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the first bubbling rinse tank. The bubbles generated by the bubbling device can remove the residual chromic acid adhering to the surface of the sickle-shaped pipe fitting, thus avoiding damage to the surface of the sickle-shaped pipe fitting caused by the residual chromic acid.

[0084] The second immersion pickling tank is filled with hydrochloric acid. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the second immersion pickling tank, so that the sickle-shaped pipe fittings come into full contact with the hydrochloric acid. The hydrochloric acid removes the metal oxides on the sickle-shaped pipe fittings, achieving double pickling of the sickle-shaped pipe fittings. This ensures that the surface of the sickle-shaped pipe fittings is clean, ensures smooth plating, and ensures the quality of the plating layer.

[0085] The two first bubbling rinse tanks following the second soaking pickling tank are filled with pure water. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the first bubbling rinse tank. The bubbles generated by the bubbling device can remove the residual hydrochloric acid adhering to the surface of the sickle-shaped pipe fitting, thus avoiding damage to the surface of the sickle-shaped pipe fitting caused by the residual hydrochloric acid.

[0086] In an optional embodiment of the present invention, the alkaline washing working tank 8 includes:

[0087] The soaking alkaline washing tank and the second bubbling rinsing tank are set up in sequence.

[0088] In this embodiment, after the immersion alkaline washing tank, two second bubbling rinsing tanks are set up. The loading fixture 4 is driven by the transport mechanism to enter the immersion alkaline washing tank and the second bubbling rinsing tank in sequence to achieve alkaline washing of the sickle-shaped pipe fittings. This helps to improve the bonding strength of the coating on the inner and outer surfaces of the sickle-shaped pipe fittings and ensure the coating quality.

[0089] Since the sickle-shaped fittings are made of copper, copper ions will be present on their surface after pickling. These copper ions will directly enter the plating tank 9 along with the sickle-shaped fittings. The copper ions will react with the plating solution to produce particulate matter. This particulate matter will adhere to the surface of the sickle-shaped fittings, causing a rough plating layer and affecting the quality of the plating layer. The particulate matter floating in the plating solution inside the plating tank 9 will increase the consumption of the effective components of the plating solution and shorten the service life of the plating solution. The particulate matter adhering to the inner wall of the plating tank 9 will affect the working effect of the plating tank 9 and increase the maintenance frequency of the plating tank 9. Therefore, a 20% volume ratio of dilute ammonia water is placed inside the immersion alkaline washing tank. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the immersion alkaline washing tank, so that the sickle-shaped pipe fittings are in full contact with the ammonia water. The ammonia molecules in the ammonia water complex with the copper ions on the surface of the sickle-shaped pipe fittings to generate a blue, water-insoluble copper hydroxide compound, which removes copper ions from the surface of the workpiece. This reduces the amount of copper ions that enter the plating working tank 9 with the sickle-shaped pipe fittings, thereby improving the plating quality of the sickle-shaped pipe fittings, increasing the service life of the plating solution, and reducing the maintenance frequency of the plating tank.

[0090] The second bubbling rinsing tank is filled with pure water. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the second bubbling rinsing tank. The bubbles generated by the bubbling device can remove the residual alkali solution adhering to the surface of the sickle-shaped pipe fitting, thus preventing the residual alkali solution from damaging the surface of the sickle-shaped pipe fitting.

[0091] In an optional embodiment of the present invention, four plating work tanks 9 are provided, and the plating work tanks 9 and the corresponding lifting and rotating mechanisms 14 are both provided on a movable base, which can move and be fixed in a direction perpendicular to the distribution direction of the work tanks.

[0092] In this embodiment, the plating working tank 9 is filled with a chemical plating solution, and the liquid temperature is maintained at 87±1℃. The lifting and rotating mechanism 14 drives the loading fixture 4 to rotate while reciprocating up and down. The lifting and rotating mechanism washes away the air bubbles on the inner and outer surfaces of the sickle-shaped tube, so that the chemical plating solution can fully contact the inner and outer walls of the sickle-shaped tube and ensure the quality of the coating.

[0093] The plating work tank 9 is equipped with four tanks, which can simultaneously perform electroplating on multiple sets of sickle-shaped tubes on the loading fixture 4, which helps to improve production efficiency.

[0094] Since the plating work tank 9 and the corresponding lifting and rotating mechanism 14 are both mounted on the movable base, the movable base can move and be fixed in a direction perpendicular to the distribution direction of the work tank. By moving the movable base, the plating work tank 9 can be moved out, which facilitates the maintenance of the plating work tank 9.

[0095] In an optional embodiment of the present invention, the post-plating rinsing working tank 10 is a third bubbling rinsing tank, and two post-plating rinsing working tanks 10 are provided.

[0096] In this embodiment, the third bubbling rinsing tank is filled with pure water. At room temperature, the rotating bearing mechanism 13 drives the loading fixture 4 to rotate inside the third bubbling rinsing tank. The bubbles generated by the bubbling device can remove the plating solution adhering to the surface of the sickle-shaped pipe fitting, thus avoiding pollution caused by residual plating solution on the surface of the sickle-shaped pipe fitting.

[0097] In an optional embodiment of the present invention, the transportation mechanism includes:

[0098] Fixed track 1 is set above the loading station 5, the working trough and the unloading station 11;

[0099] The traveling vehicle 2 is mounted on the fixed track 1.

[0100] The lifting mechanical claw 3 is mounted on the traveling vehicle 2 and is compatible with the loading fixture 4.

[0101] In this embodiment, the traveling vehicle 2 moves on the fixed track 1, enabling the lifting mechanical claw 3 to move above the loading station 5, the working tank, and the unloading station 11. This facilitates the lifting mechanical claw 3 to grab and move the loading fixture 4 from the loading station 5 into the working tank, move the loading fixture 4 between the various working tanks, and move the completed electroplating loading fixture 4 to the unloading station 11, thereby achieving automated electroplating of the sickle-shaped tube fittings and meeting the needs of mass production.

[0102] In an optional embodiment of the present invention, four traveling vehicles 2 are provided, and each of the four traveling vehicles 2 is provided with a lifting mechanical claw 3. The four traveling vehicles 2 correspond to the degreasing working tank 6, the pickling working tank 7 and the alkaline washing working tank 8, the plating working tank 9, and the post-plating rinsing working tank 10, respectively.

[0103] In this embodiment, by setting up four traveling vehicles 2, each of which is equipped with a lifting mechanical claw 3, the loading fixture 4 can move within and between the loading station 5, the degreasing tank 6, the pickling tank 7 and the alkaline washing tank 8, the plating tank 9, the post-plating rinsing tank 10 and the unloading station 11. This helps to improve the production rhythm, ensure the smooth operation of automation, and thus help to improve production efficiency and meet the needs of mass production.

[0104] In an optional embodiment of the present invention, the loading fixture 4 includes:

[0105] The gripping rod 401 is set on the surface of the bearing seat 402. The upper end of the gripping rod 401 has an inverted conical structure and is adapted to the gripping end of the lifting mechanical claw 3.

[0106] The bearing cylinder 405 is disposed on the bottom surface of the bearing seat 402 and extends vertically;

[0107] The bearing ring 406 is fitted on the outside of the bearing cylinder 405. Multiple bearing rings 406 are provided and are evenly distributed along the axial direction of the bearing cylinder 405.

[0108] Insertion cavity 407 is provided on the outer circle side of bearing ring 406. Insertion cavity 407 is inserted into the large diameter end of sickle-shaped pipe fitting. Multiple insertion cavities 407 are provided and are evenly distributed around the axis of bearing ring 406. Limit step 410 is provided at the inner end of insertion cavity 407.

[0109] The first threaded hole 408 is provided on the upper surface of the bearing ring 406, and the first threaded hole 408 corresponds to and is connected to the insertion cavity 407.

[0110] The second threaded hole 409 is provided on the bottom surface of the bearing ring 406. The second threaded hole 409 corresponds to and is connected to the insertion cavity 407.

[0111] The flow guiding cavity 411 is located on the bottom surface of the bearing ring 406, and the flow guiding cavity 411 is connected to the insertion cavity 407.

[0112] An expansion cavity 412 is disposed on the bottom surface of the bearing ring 406, and the expansion cavity 412 is connected to the guide cavity 411;

[0113] A transmission block 403 is disposed on the bottom surface of the bearing seat 402 and located inside the bearing cylinder 405. A insertion groove 404 is provided on the bottom surface of the transmission block 403.

[0114] The loading station 5 and the unloading station 11 are respectively equipped with positioning posts 12, which are inserted into the bearing cylinder 405.

[0115] In this embodiment, the large-diameter end of the sickle-shaped tube to be plated is inserted into the insertion cavity 407, and corresponding bolts are screwed into the first threaded hole 408 and the second threaded hole 409 respectively. The large-diameter end of the sickle-shaped tube is fixed in the insertion cavity 407 by the two bolts, so that the inner cavity of the sickle-shaped tube is connected to the guide cavity 411. When the lifting and rotating mechanism 14 drives the loading fixture 4 to rotate in the b direction, the plating solution in the plating working tank 9 enters the interior of the sickle-shaped tube from the large-diameter end through the expansion cavity 412 and the guide cavity 411. This can increase the flow rate of the plating solution inside the sickle-shaped tube, thereby flushing out the air bubbles that have entered the sickle-shaped tube and preventing the air bubbles from blocking the inner cavity of the sickle-shaped tube. This allows the plating solution to fully contact the inner wall of the sickle-shaped tube and ensures the quality of the plating layer.

[0116] The expansion cavity 412 has an arc-shaped structure and is evenly distributed around the axis of the bearing ring 406. Each expansion cavity 412 is connected to at least two guide cavities 411 at the same time, which can ensure that the plating solution accurately enters the sickle-shaped tube through the guide cavity 411. This helps to increase the flow rate of the plating solution inside the sickle-shaped tube, ensure the flushing effect on the air bubbles entering the sickle-shaped tube, ensure that the plating solution is in full contact with the inner wall of the sickle-shaped tube, and ensure the quality of the coating.

[0117] The inner diameter of the second threaded hole 409 is half that of the first threaded hole 408. The inner cavity of the second threaded hole 409 is completely connected to the insertion cavity 407. Half of the inner cavity of the first threaded hole 408 is connected to the insertion cavity 407, and the other half is connected to the limiting step 410. The first threaded hole 408 and the second threaded hole 409 adopt the above structure, which enables the bolt inside the second threaded hole 409 to fully support the sickle-shaped tube from below. Adjusting the pressure of the bolt inside the first threaded hole 408 on the large diameter end of the sickle-shaped tube can realize the horizontal adjustment of the sickle-shaped tube. This horizontal adjustment helps the plating solution to smoothly and quickly enter the sickle-shaped tube through the expansion cavity 412 and the guide cavity 411, which helps to increase the flow rate of the plating solution inside the sickle-shaped tube, ensures the flushing effect on the air bubbles entering the sickle-shaped tube, ensures that the plating solution is in full contact with the inner wall of the sickle-shaped tube, and ensures the quality of the coating.

[0118] By setting the gripping rod 401, the lifting mechanical claw 3 can be easily gripped, thus realizing the movement of the loading operation;

[0119] By setting positioning posts 12 at loading station 5 and unloading station 11, and by inserting the positioning posts 12 into the bearing cylinder 405, the stability of the loading fixture 4 at loading station 5 and unloading station 11 can be guaranteed, which facilitates the lifting mechanical claw 3 to grasp the fixture while ensuring the safety of the loading fixture 4 and the sickle-shaped pipe fitting.

[0120] In an optional embodiment of the present invention, the rotating bearing mechanism 13 includes:

[0121] The first sealing tube 1306 is installed inside the degreasing working tank 6, the pickling working tank 7, the alkaline washing working tank 8, and the post-plating rinsing working tank 10. The upper end of the first sealing tube 1306 extends to the port of the degreasing working tank 6, the pickling working tank 7, the alkaline washing working tank 8, and the post-plating rinsing working tank 10. The bottom end of the first sealing tube 1306 penetrates the bottom surface of the degreasing working tank 6, the pickling working tank 7, the alkaline washing working tank 8, and the post-plating rinsing working tank 10, and is sealed to the bottom surface of the degreasing working tank 6, the pickling working tank 7, the alkaline washing working tank 8, and the post-plating rinsing working tank 10.

[0122] The first bearing shaft 1301 is rotatably disposed inside the first sealing tube 1306. The upper end of the first bearing shaft 1301 extends out of the upper port of the first sealing tube 1306 and is connected to the first insert block 1305. The first insert block 1305 is inserted into the insertion groove 404. The bottom end of the first bearing shaft 1301 passes through the bottom port of the first sealing tube 1306.

[0123] The first rotary motor 1304 has a first transmission pulley 1302 at both its output end and the bottom end of the first bearing shaft 1301. A first transmission belt 1303 is meshed between the two first transmission pulleys 1302.

[0124] In this embodiment, the traveling vehicle 2 moves so that the insertion slot 404 is accurately aligned with the first insertion block 1305. The lifting mechanical claw 3 lowers the loading fixture 4 so that the first insertion block 1305 is inserted into the insertion slot 404. The first rotary motor 1304 works and drives the first bearing shaft 1301 to rotate through the first transmission pulley 1302 and the first transmission belt 1303. This drives the bearing seat 402 to rotate through the first insertion block 1305 and the transmission block 403, and finally drives the loading fixture 4 to rotate.

[0125] By setting the first sealing pipe 1306, the bottom surface of the working tank can be sealed to prevent liquid leakage inside the working tank. At the same time, the first sealing pipe 1306 is rotatably connected to the first bearing shaft 1301, which can ensure that the first bearing shaft 1301 rotates smoothly, and ultimately ensures that the loading fixture 4 rotates smoothly.

[0126] In an optional embodiment of the present invention, the lifting and rotating mechanism 14 includes:

[0127] The second sealing tube 1406 is disposed inside the plating working tank 9. The upper end of the second sealing tube 1406 extends toward the port of the plating working tank 9, and the bottom end of the second sealing tube 1406 penetrates the bottom surface of the plating working tank 9 and is sealed to the bottom surface of the plating working tank 9.

[0128] Guide posts 1403 extend vertically, and two guide posts 1403 are provided and symmetrically arranged on both sides of the plating work tank 9.

[0129] The lifting frame 1404 is located below the plating work tank 9, and the two sides of the lifting frame 1404 are slidably engaged with two guide columns 1403 respectively.

[0130] The second bearing shaft 1405 is rotatably mounted on the surface of the lifting frame 1404. The upper end of the second bearing shaft 1405 passes through the upper port of the second sealing tube 1406 and is connected to the second insert block 1407. The second insert block 1407 is inserted into the insertion slot 404. The bottom end of the second bearing shaft 1405 extends through to the bottom of the lifting frame 1404.

[0131] The second rotary motor 1413 is mounted on the surface of the lifting frame 1404. The output end of the second rotary motor 1413 and the bottom end of the second bearing shaft 1405 are both provided with second transmission pulleys 1411. A second transmission belt 1412 is meshed between the two second transmission pulleys 1411.

[0132] The lifting drive shaft 1410 is horizontally arranged on the outside of the lifting frame 1404. There are two lifting drive shafts 1410, which are respectively close to the second bearing shaft 1405 and the second rotary motor 1413.

[0133] The lifting drive shaft 1408 is rotatably mounted below the lifting frame 1404 via a bearing seat.

[0134] Cam 1409 is fixedly installed on the outside of lifting drive shaft 1408. There are two cams 1409, and they abut against two lifting drive shafts 1410 respectively.

[0135] The lifting motor 1401 has a transmission sprocket 1402 at its output end and at the end of the lifting drive shaft 1408. A chain is meshed between the two transmission sprockets 1402.

[0136] In this embodiment, the traveling vehicle 2 moves to accurately align the insertion slot 404 with the second insertion block 1407. The lifting mechanical claw 3 lowers the loading fixture 4, allowing the second insertion block 1407 to insert into the insertion slot 404. The second rotary motor operates, driving the second bearing shaft 1405 to rotate via the second transmission pulley 1411 and the second transmission belt 1412. This rotation, in turn, drives the bearing seat 402 to rotate via the cooperation of the second insertion block 1407 and the transmission block 403, thus causing the loading fixture 4 to rotate inside the plating work tank 9. Simultaneously, the lifting motor 1401 operates, driving the lifting drive shaft 1408 to rotate via the transmission sprocket 1402 and the chain. The two cams... As the lifting drive shaft 1408 rotates, in conjunction with the two lifting transmission shafts 1410, the lifting frame 1404 reciprocates under the guidance of the guide column 1403. The second bearing shaft 1405 reciprocates with the lifting frame 1404, thereby driving the loading fixture 4 to reciprocate inside the plating working tank 9. At the same time, the loading fixture 4 rotates inside the plating working tank 9 while reciprocating, using the lifting and rotation to flush away air bubbles on the inner and outer surfaces of the sickle-shaped tube, so that the plating solution can fully contact the inner and outer walls of the sickle-shaped tube, thereby solving various defects such as uneven plating thickness, missed plating, and rough plating on the inner and outer walls of the sickle-shaped tube, and ensuring the plating quality of the inner and outer walls of the sickle-shaped tube.

[0137] By setting the second sealing pipe 1406, the bottom surface of the plating working tank 9 can be sealed, preventing the leakage of plating solution inside the plating working tank 9.

[0138] Among them, pulleys are provided on the outer side of both lifting drive shafts 1410, and the two pulleys abut against the corresponding cams 1409. By providing pulleys, the wear between the lifting drive shafts 1410 and the cams 1409 can be reduced.

[0139] In an optional embodiment of the present invention, the above-mentioned sickle-shaped tube plating apparatus further includes:

[0140] The exhaust system 15 has multiple intake pipes, which correspond to the chemical solution inlets of the ultrasonic cleaning tank, the immersion pickling tank, the immersion alkaline washing tank, and the plating working tank 9, respectively.

[0141] Multiple circulating filtration systems 16 are provided and are respectively installed inside the ultrasonic cleaning tank and the plating working tank 9.

[0142] Heating system 17, multiple heating systems 17 are provided, and are respectively installed inside the ultrasonic cleaning tank and the plating working tank 9;

[0143] Cooling system 18 is installed inside plating work tank 9.

[0144] In this embodiment, the gas emitted from the chemical solution outlets of the ultrasonic cleaning tank, the pickling tank, the alkaline washing tank, and the plating tank 9 is absorbed through the suction pipe of the exhaust system 15 to purify the gas, prevent the emission and diffusion of toxic gases, and ensure the safety of the production environment.

[0145] The liquid inside the ultrasonic cleaning tank is heated by the heating system 17 to ensure the liquid temperature, which helps to improve the degreasing effect.

[0146] The temperature of the plating solution inside the plating tank 9 is controlled by the heating system 17 and the cooling system 18 to ensure the plating effect and improve the coating quality.

[0147] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A plating apparatus for sickle-shaped tube fittings, characterized in that, include: Multiple work slots are provided and are distributed sequentially between the loading station (5) and the unloading station (11); The working tanks are, in sequence, an oil removal working tank (6), an acid pickling working tank (7), an alkaline washing working tank (8), a plating working tank (9), and a post-plating rinsing working tank (10). The rotating bearing mechanism (13) is provided in multiple sets and is respectively located inside the degreasing working tank (6), pickling working tank (7), alkaline washing working tank (8) and post-plating rinsing working tank (10). The rotating bearing mechanism (13) is adapted to the loading fixture (4). A lifting and rotating mechanism (14) is provided inside the plating work tank (9), and the lifting and rotating mechanism (14) is adapted to the loading fixture (4); The lifting and rotating mechanism (14) includes: The second sealing tube (1406) is disposed inside the plating working tank (9). The upper port of the second sealing tube (1406) extends toward the port of the plating working tank (9). The bottom port of the second sealing tube (1406) penetrates the bottom surface of the plating working tank (9) and is sealed to the bottom surface of the plating working tank (9). Guide posts (1403) extend vertically, and two guide posts (1403) are provided and symmetrically arranged on both sides of the plating working tank (9); The lifting frame (1404) is located below the plating work tank (9), and the two sides of the lifting frame (1404) are respectively slidably engaged with two guide columns (1403); The second bearing shaft (1405) is rotatably mounted on the surface of the lifting frame (1404). The upper end of the second bearing shaft (1405) extends through the upper port of the second sealing tube (1406) and is connected to a second insert (1407). The second insert (1407) is inserted into the insertion slot (404). The bottom end of the second bearing shaft (1405) extends through to the bottom of the lifting frame (1404). The second rotary motor (1413) is disposed on the surface of the lifting frame (1404). The output end of the second rotary motor (1413) and the bottom end of the second bearing shaft (1405) are both provided with second transmission pulleys (1411). A second transmission belt (1412) is meshed between the two second transmission pulleys (1411). The lifting drive shaft (1410) is horizontally arranged on the outside of the lifting frame (1404). There are two lifting drive shafts (1410) respectively close to the second bearing shaft (1405) and the second rotary motor (1413). A lifting drive shaft (1408) is rotatably mounted below the lifting frame (1404) via a bearing seat; Cam (1409) is fixedly disposed on the outside of the lifting drive shaft (1408). There are two cams (1409), which abut against the two lifting drive shafts (1410) respectively. The lifting motor (1401) and the end of the lifting drive shaft (1408) are both provided with transmission sprockets (1402), and a chain is meshed between the two transmission sprockets (1402). The transport mechanism is set above the loading station (5), the working trough and the unloading station (11), and the transport mechanism is adapted to the loading fixture (4).

2. The electroplating apparatus for sickle-shaped tube fittings according to claim 1, characterized in that, The degreasing working tank (6) includes: An ultrasonic cleaning tank and an ultrasonic rinsing tank are arranged in sequence, and two sets of each type of ultrasonic cleaning tank and ultrasonic rinsing tank are provided.

3. The electroplating apparatus for sickle-shaped tube fittings according to claim 2, characterized in that, The pickling tank (7) includes: There are two pickling tanks, arranged sequentially. The first bubbling rinsing tank is provided in two sets, and the two sets of the first bubbling rinsing tanks are respectively located after the two soaking pickling tanks.

4. The electroplating apparatus for sickle-shaped tube fittings according to claim 3, characterized in that, The alkaline washing working tank (8) includes: The soaking alkaline washing tank and the second bubbling rinsing tank are set up in sequence.

5. The electroplating apparatus for sickle-shaped tube fittings according to claim 1, characterized in that, The transportation agencies include: Fixed track (1), the fixed track (1) is set above the loading station (5), the working trough and the unloading station (11); The traveling vehicle (2) is mounted on a fixed track (1); The lifting mechanical claw (3) is mounted on the traveling vehicle (2) and is adapted to the loading fixture (4).

6. The electroplating apparatus for sickle-shaped tube fittings according to claim 5, characterized in that, There are four walking vehicles (2), and each of the four walking vehicles (2) is equipped with a lifting mechanical claw (3). The four walking vehicles (2) correspond to the degreasing working tank (6), the pickling working tank (7), the alkaline washing working tank (8), the plating working tank (9), and the post-plating rinsing working tank (10), respectively.

7. The electroplating apparatus for sickle-shaped tube fittings according to claim 5, characterized in that, The loading fixture (4) includes: A gripping rod (401) is set on the surface of the bearing seat (402). The upper end of the gripping rod (401) has an inverted conical structure and is adapted to the gripping end of the lifting mechanical claw (3). A support cylinder (405) is disposed on the bottom surface of the support base (402) and extends vertically; A bearing ring (406) is fitted on the outside of the bearing cylinder (405). Multiple bearing rings (406) are provided and are evenly distributed along the axial direction of the bearing cylinder (405). Insertion cavity (407) is provided on the outer circle side of the bearing ring (406). The insertion cavity (407) is inserted into the large diameter end of the sickle-shaped pipe fitting. Multiple insertion cavities (407) are provided and are evenly distributed around the axis of the bearing ring (406). A limit step (410) is provided at the inner end of the insertion cavity (407). A first threaded hole (408) is provided on the upper surface of the bearing ring (406), and the first threaded hole (408) corresponds to and communicates with the insertion cavity (407); The second threaded hole (409) is provided on the bottom surface of the bearing ring (406), and the second threaded hole (409) corresponds to and communicates with the insertion cavity (407); A flow guide cavity (411) is disposed on the bottom surface of the bearing ring (406), and the flow guide cavity (411) is connected to the insertion cavity (407); An expansion cavity (412) is disposed on the bottom surface of the bearing ring (406), and the expansion cavity (412) is connected to the flow guiding cavity (411); A transmission block (403) is disposed on the bottom surface of the bearing seat (402) and located inside the bearing cylinder (405). The bottom surface of the transmission block (403) is provided with a insertion groove (404). The loading station (5) and unloading station (11) are respectively provided with positioning posts (12), and the positioning posts (12) are inserted into the bearing cylinder (405).

8. The electroplating apparatus for sickle-shaped tube fittings according to claim 7, characterized in that, The rotating bearing mechanism (13) includes: The first sealing tube (1306) is disposed inside the degreasing working tank (6), pickling working tank (7), alkaline washing working tank (8) and post-plating rinsing working tank (10). The upper port of the first sealing tube (1306) extends to the port of the degreasing working tank (6), pickling working tank (7), alkaline washing working tank (8) and post-plating rinsing working tank (10). The bottom port of the first sealing tube (1306) penetrates the bottom surface of the degreasing working tank (6), pickling working tank (7), alkaline washing working tank (8) and post-plating rinsing working tank (10) and is sealed to the bottom surface of the degreasing working tank (6), pickling working tank (7), alkaline washing working tank (8) and post-plating rinsing working tank (10). The first bearing shaft (1301) is rotatably disposed inside the first sealing tube (1306). The upper end of the first bearing shaft (1301) extends out of the upper port of the first sealing tube (1306) and is connected to a first insert (1305). The first insert (1305) is inserted into the insertion groove (404). The bottom end of the first bearing shaft (1301) passes through the bottom port of the first sealing tube (1306). The first rotary motor (1304) has a first transmission pulley (1302) at its output end and at the bottom end of the first bearing shaft (1301). A first transmission belt (1303) is meshed between the two first transmission pulleys (1302).

9. The electroplating apparatus for sickle-shaped tube fittings according to claim 4, characterized in that, Also includes: The exhaust system (15) has multiple suction pipes, which correspond to the chemical solution inlets of the ultrasonic cleaning tank, the immersion pickling tank, the immersion alkaline washing tank and the plating working tank (9), respectively. A circulating filtration system (16) is provided in multiple forms, and is respectively installed inside the ultrasonic cleaning tank and the plating working tank (9); Heating system (17), multiple heating systems (17) are provided and are respectively installed inside the ultrasonic cleaning tank and the plating working tank (9); The cooling system (18) is located inside the plating work tank (9).

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