Stainless steel seamless pipe fitting surface treatment equipment and method

Abstract

The invention relates to the technical field of plating, in particular to stainless steel seamless pipe fitting surface treatment equipment and a production method.The stainless steel seamless pipe fitting surface treatment equipment comprises a plating solution pool, a double-shaft sliding table and a clamping mechanical arm and further comprises a fixing mechanism, and the fixing mechanism is arranged on the double-shaft sliding table and used for clamping and fixing a workpiece so as to assist the workpiece in completing plating; the fixing mechanism comprises a clamping assembly arranged on the gantry sliding rail, an airflow assembly arranged on the clamping assembly and an auxiliary assembly, the fixing mechanism clamps a workpiece, moves through the double-shaft sliding table to achieve hot dipping and is matched with the airflow assembly to enable a plating layer to be evenly attached, and the auxiliary assembly cleans the surface of the clamping assembly; the plating supplementing mechanism comprises a moving part arranged in the middle of the fixing mechanism and a plating supplementing part arranged above the plating solution pool, and the moving part moves the workpiece to the plating supplementing part and carries out plating supplementing on grooves in the two ends of a plating layer; and the cleaning mechanism is arranged above the plating solution pool and is used for cleaning the workpiece before plating.

Description

Technical Field

[0001] The present invention relates to the field of plating technology, and in particular to a surface treatment device and method for stainless steel seamless pipe fittings. Background Art

[0002] Currently, in order to extend the service life of seamless pipes and enhance their anti-corrosion performance, it is usually necessary to apply a protective layer on their surfaces. The commonly used technology in China at present is galvanizing. The steps of galvanizing are as follows: First, pass the steel wire rope through the seamless pipe, then manually knot each steel wire rope together and hang it on one or more lifting hooks of a traveling crane (or a hoist), then lift the seamless pipe and steadily place it into the galvanizing solution in the zinc bath for galvanizing operation, and finally lift the galvanized seamless pipe again and let it dry, and then manually remove the seamless pipe from the above-mentioned steel wire rope to obtain the galvanized seamless pipe. When performing the galvanizing operation on a single seamless pipe in the above manner, the entire galvanizing operation is relatively simple, and each seamless pipe is galvanized comprehensively and evenly, but the galvanizing efficiency is low.

[0003] The patent document with the patent number CN101802242A discloses a hot-dip plating device for plating a strip with a metal solution. In the metal solution, there is a roller for turning or stabilizing the strip, and the roller is in the form of a hollow body. The roller is supported in a bearing on a support arm of the hot-dip plating device through a roller neck. In order to reduce the rotational resistance, moment of inertia of the roller and the slipping tendency of the roller relative to the strip, the inner cavity of the roller is formed to be sealed relative to the metal solution, and a channel is provided, which connects the inner cavity of the roller and the space area at the circumferential surface of the roller neck.

[0004] However, during the actual plating operation, for seamless pipes with a threaded structure inside, the plating material cannot be evenly distributed, and the impurities inside the pipe are not easy to remove before plating, which affects the plating quality of the pipe fittings. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the prior art. By setting a fixing mechanism and a supplementary plating mechanism, the workpiece is plated in two times, first with a large-area plating and then with a small-area supplementary plating, thereby solving the technical problem of easy appearance of defects during the plating of the workpiece.

[0006] For the above technical problems, the following technical solutions are adopted: A surface treatment device for stainless steel seamless pipe fittings, including a plating solution pool, a double-axis sliding table, a clamping robotic arm, and further including: Fixing mechanism, the fixing mechanism is arranged on the double-axis sliding table and is used for clamping and fixing the workpiece, so as to assist the workpiece to complete the plating layer. The fixing mechanism includes a clamping component arranged on the gantry slide rail, an air flow component and an auxiliary component arranged on the clamping component. The fixing mechanism clamps the workpiece and moves it through the double-axis sliding table to realize hot dipping, and cooperates with the air flow component to make the plating layer adhere evenly, and the auxiliary component cleans the surface of the clamping component; The clamping component includes a first clamping piece for clamping both ends of the workpiece, and a contact block is arranged on the first clamping piece for fixing both ends of the workpiece and making the plating layer at both ends of the workpiece present a groove shape; Plating repair mechanism, the plating repair mechanism is respectively arranged on the moving part in the middle of the fixing mechanism and the plating repair part above the plating solution pool. The moving part moves the workpiece to the plating repair part and repairs the grooves at both ends of the plating layer; Cleaning mechanism, the cleaning mechanism is arranged above the plating solution pool and is used for cleaning the workpiece before plating.

[0007] Preferably, the cleaning mechanism includes a partition plate arranged above the plating solution pool, an isolation cover arranged on the partition plate, a cleaning pool arranged on the partition plate, a feeding plate that can be lifted inside the cleaning pool, a receiving pool arranged in the middle of the feeding plate and fixed above the partition plate, and also includes multiple groups of cleaning parts arranged on the feeding plate and the cleaning pool.

[0008] Preferably, the cleaning part includes a double-axis roller arranged on the feeding plate, a cleaning roller hinged on the feeding plate on both sides of the double-axis roller, a storage cylinder arranged on the outer side wall of the cleaning pool, and a brush horizontally slidably connected inside the storage cylinder.

[0009] Preferably, the clamping component includes a mounting frame rotatably connected under the double-axis sliding table, multiple groups of first clamping pieces evenly arranged at the circumferential position of the mounting frame. The first clamping piece includes a first clamping jaw for clamping the workpiece, an adjusting part arranged on the mounting frame for angle flipping of the first clamping jaw, and a contact block rotatably connected to the clamping jaw of the first clamping jaw.

[0010] Preferably, the evenness part, the evenness part includes a rotating part arranged inside the contact block and horizontally slidably connected to the outer wall of the first clamping jaw, an air pipe arranged on the rotating part, air holes are opened on the air pipe, a wind guiding plate is arranged on the air holes, a negative pressure pipe radially slidably connected to the rotating part along the rotating part, and an annular air outlet is arranged on the rotating part.

[0011] Preferably, the auxiliary component is a moving rod slidably connected to the side wall of the first clamping jaw, an infusion pipe rotatably connected to the moving rod, and two sets of coating rollers arranged at the upper and lower ends of the infusion pipe.

[0012] Preferably, the moving member includes a receiving table disposed at the center of the mounting frame and capable of horizontal lifting, a plurality of groups of second clamping jaws rotatably connected around the receiving table, and a driving portion fixed on the receiving table and simultaneously driving the second clamping jaws to move radially outward along the receiving table.

[0013] Preferably, the replenishing plating member is disposed at the bottom of the isolation cover and includes a stable table fixed on the isolation cover and provided with a plurality of docking holes, a control board vertically slidably connected to the stable table, and a replenishing plating disc disposed on the control board and located below each docking hole.

[0014] Preferably, the air flow assembly further includes a cooling member cooled by the plating layer. The cooling member includes a plurality of groups of air outlet portions and absorption portions. Among them, the air outlet portions are rotatably connected between the second clamping jaws of each group on the receiving table, and the absorption portions are rotatably connected between the first clamping jaws on the fixed frame.

[0015] More preferably, an intelligent hot dip plating production method is applied to a surface treatment device for stainless steel seamless pipe fittings, and includes the following steps: Step 1, cleaning step: The clamping robotic arm places the workpieces one by one on the double-axis drum of the loading plate. At this time, the loading plate is at the lowest position, and the cleaning roller and the brush clean the inside and outside of the workpieces. After the cleaning is completed, the loading plate moves up. At this time, the double-axis slide moves the fixing mechanism above the loading table. The first clamping jaws clamp the workpiece from both ends of the workpiece, and the uniform member extends into the workpiece. At the same time, the cooling member is also started, and the air flow is used to assist in quickly drying the workpiece for subsequent plating. Step 2, plating step: The double-axis motor controls to move the workpiece from below the isolation cover into the dripping liquid, so that the lower part of the workpiece is immersed in the plating solution. The contact block drives the workpiece to rotate while the uniform member outputs air flow, so that the plating solution can be evenly attached to the inner thread surface of the workpiece, avoiding accumulation at the root of the thread. After the plating is completed, the workpiece rises, and the fixed frame rotates for centrifugation. At the same time, the uniform member uses the air flow direction covered by the wind guide plate to blow out the excess plating solution inside the plating layer by air flow, avoiding the accumulation of the plating solution at the lower part inside the workpiece due to gravity. Step 3, replenishing plating step: After centrifugation, the first clamping jaws flip to make the workpiece stand upright and transfer it to the second clamping jaws. The receiving table descends, so that the lower part of the workpiece enters the docking holes. At the same time, the replenishing plating disc is filled with part of the plating solution and rises. The replenishing plating disc contacts the workpiece and fills the plating solution into the plating grooves at both ends for replenishing plating. After one end is completed, the second clamping jaws flip for replenishing plating at the other end. After the plating is completed, the workpiece is placed in the receiving pool, and at the same time, a new workpiece is plated.

[0016] The beneficial effects of the present invention: (1) In the present invention, by providing a cleaning mechanism, the workpiece is thoroughly cleaned with cleaning water. At the same time, using the heat of the workpiece after the plating is completed, the oil stains on the inner and outer surfaces of the workpiece can be effectively removed, avoiding the adhesion of the oil stains on the workpiece surface and affecting the formation of the plating layer. (2) In the present invention, a first clamping member is provided to immerse a portion of the workpiece in the plating solution and rotate the workpiece, and the edge controls the amount of the plating solution immersed in the workpiece, thereby avoiding a large amount of plating solution flowing into the workpiece, resulting in air stagnation and bubbles, so that the coating adheres more evenly to the surface of the workpiece; (3) The present invention uses an airflow component to assist in cleaning the workpiece and enrich the coating of the workpiece. When the workpiece is immersed in the coating, the airflow is used to coordinate with the rotation of the workpiece to avoid excessive plating solution being retained at the root of the thread, causing uneven plating solution. When centrifuging, the airflow assists in promoting the throwing out of excess plating solution, thereby further ensuring the uniformity of the coating. (4) In the present invention, a repair plating mechanism is provided to achieve repair plating of the uncoated part of the workpiece. By setting the contact block, after the first plating of the workpiece, the coating on the inner and outer surfaces will extend to both ends, so that a groove structure is formed at both ends of the workpiece. The plating solution is filled into the groove by the repair plating mechanism to complete the overall plating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a surface treatment equipment for stainless steel seamless pipe fittings.

[0019] Figure 2 It is a schematic diagram of the structure of the cleaning mechanism.

[0020] Figure 3 It is a schematic diagram of the structure of the cleaning part.

[0021] Figure 4 Schematic diagram of the working status of the cleaning part.

[0022] Figure 5 Schematic diagram of the relevant structure of the fixing mechanism.

[0023] Figure 6 Schematic diagram of the related structure of the first clamping member.

[0024] Figure 7 Schematic diagram of the relevant structure of the first clamping jaw.

[0025] Figure 8 Schematic diagram of the coating state at one end of the workpiece Figure 9 Schematic diagram of the rotation state of the first clamping jaw Figure 10Schematic diagram of the working state of the air flow component in the plating step Figure 11 Schematic diagram of the related structure of the moving component Figure 12 Schematic diagram of the structure of the supplementary plating component Figure 13 Schematic diagram of the working state of the moving component and the supplementary plating component Figure 14 Schematic flow diagram of an intelligent hot dip plating production method Specific implementation mode The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] Embodiment 1 As Figure 1 、 Figure 5 shown, a surface treatment device for stainless steel seamless pipe fittings includes a plating solution tank 01, a double-axis sliding table 02, and a clamping robotic arm 03, and further includes: A fixing mechanism 1, which is arranged on the double-axis sliding table 02 and is used for clamping and fixing the workpiece, so as to assist the workpiece to complete plating. The fixing mechanism 1 includes a clamping component 11 arranged on a gantry slide rail, an air flow component 12 and an auxiliary component 13 arranged on the clamping component 11. The fixing mechanism 1 clamps the workpiece and moves it through the double-axis sliding table 02 to achieve hot dip plating, and cooperates with the air flow component 12 to make the plating evenly adhere, and the auxiliary component 13 cleans the surface of the clamping component 11; The clamping component 11 includes a first clamping piece 111 for clamping both ends of the workpiece, and a contact block 1111 is arranged on the first clamping piece 111 for fixing both ends of the workpiece and making the plating at both ends of the workpiece present a groove shape; A supplementary plating mechanism 2, which includes a moving component 21 arranged in the middle of the fixing mechanism 1 and a supplementary plating component 22 arranged above the plating solution tank 01. The moving component 21 moves the workpiece to the supplementary plating component 22 and supplements the grooves at both ends of the plating; A cleaning mechanism 3, which is arranged above the plating solution tank 01 and is used for cleaning the workpiece before plating.

[0027] In this embodiment, the complete coating work of the internal thread tube is realized by setting the fixing mechanism 1 and the supplementary plating mechanism 2. For the hot-dip centrifugal plating of workpieces, since the workpieces need to rotate at high speed for centrifugation, in order to prevent the workpieces from colliding with each other during rotation, it is necessary to stably clamp the workpieces. However, since the coating requires the plating solution to adhere evenly to the surface of the workpieces, if the workpieces are clamped, the contact positions between the fixture and the workpieces will inevitably affect the adhesion of the coating, resulting in coating defects. Only by reducing the contact area can the area of the defects be reduced. And for the workpieces to be plated in batches, there may be a situation where the connection parts of the two coatings cannot be well fused, resulting in unevenness. Based on this, in this application, the workpieces are plated in two batches. First, the inner and outer surfaces of the workpieces are plated, and at the same time, grooves are formed at the coatings at both ends of the workpieces. Then, the two ends of the workpieces are plated, and the formed groove state is used to improve the bonding effect of the front and back coatings. By setting the bonding position of the two coatings at the corners of the workpieces, the coating effect of the workpieces is improved to ensure aesthetics.

[0028] Specifically, the device completes the cleaning of the workpieces before coating through the cleaning mechanism 3. Then, the first clamping member 111 clamps both ends of the workpieces and immerses the workpieces in the plating solution, isolating both ends of the workpieces and plating the inner and outer surfaces of the workpieces at the same time, making the coatings at both ends show a groove-shaped coating. Then, centrifugal cooling is carried out, and then the supplementary plating mechanism 2 is used to carry out supplementary plating on both ends of the workpieces.

[0029] Further, as Figure 2 、 Figure 3 、 Figure 4 shown, the cleaning mechanism 3 includes a partition plate 31 arranged above the plating solution pool 01, an isolation cover 32 arranged on the partition plate 31, a cleaning pool 33 arranged on the partition plate 31, a material placing plate 34 that can be lifted and lowered inside the cleaning pool 33, a receiving pool 35 arranged in the middle of the material placing plate 34 and fixed above the partition plate 31, and also includes a plurality of cleaning members 36 arranged on the material placing plate 34 and the cleaning pool 33.

[0030] The cleaning member 36 includes a double-axis roller 361 arranged on the material placing plate 34, cleaning rollers 362 hinged on the material placing plate 34 on both sides of the double-axis roller 361, a storage cylinder 363 arranged on the outer side wall of the cleaning pool 33, and a brush 364 horizontally slidably connected inside the storage cylinder 363.

[0031] In this embodiment, the surface cleaning of the workpieces is completed by setting the cleaning assembly.

[0032] Specifically, the material receiving pool 35 is used to receive the workpieces with the plating completed. Clean water is continuously input into the material receiving pool 35 to cool the workpieces with the plating completed. Water outlets are arranged around the material receiving pool 35 to allow the clean water to flow out of the material receiving pool 35 and enter the cleaning pool 33. The clamping manipulator 03 is used to place the workpiece to be processed on the double-axis drum 361. The double-axis drum 361 is used to continuously rotate the workpiece. At this time, the feeding plate 34 is located in the cleaning pool 33, and the workpiece is immersed in the clean water. The cleaning rollers 362 on both sides contact the outer surface of the workpiece, and the brush 364 in the storage cylinder 363 extends into the workpiece to clean the workpiece.

[0033] It should be noted that the cleaning rollers 362 are hinged to both sides of the workpiece through motors. After the workpiece is placed on the double-axis drum 361, the cleaning rollers 362 rotate onto the workpiece through the motors. A cylinder is arranged at one end of the brush 364 to allow the brush 364 to extend into the workpiece by using the cylinder. At the same time, vibration motors are arranged on both the cleaning rollers 362 and the brush 364 to vibrate the brush 364 and the cleaning rollers 362, thereby promoting the cleaning efficiency.

[0034] The plating of the workpiece is all located within the isolation cover 32. By setting the isolation cover 32, on the one hand, it is beneficial to ensure a stable temperature, and on the other hand, it can prevent the plating solution from being thrown out during centrifugation.

[0035] It is worth mentioning that since the clean water flows out through the material receiving port and has a certain temperature, the hot water can assist in cleaning the workpiece. At the same time, the double-axis drum 361 drives the workpiece to rotate, which can enable the brush 364 to better clean the internal threads of the workpiece and prevent dead corners from occurring, affecting the subsequent plating.

[0036] Further, as Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 shown, the clamping assembly 11 includes a mounting frame 112 rotatably connected to the lower part of the double-axis slide 02, multiple groups of first clamping members 111 uniformly arranged at the circumferential position of the mounting frame 112. The first clamping member 111 includes a first clamping jaw 1112 for clamping the workpiece, an adjusting part 1113 arranged on the mounting frame 112 and used for angular flipping of the first clamping jaw 1112, and a contact block 1111 rotatably connected to the clamping jaw of the first clamping jaw 1112.

[0037] Further, as Figure 7 shown, the auxiliary assembly 13 includes a moving rod 131 slidably connected to the side wall of the first clamping jaw 1112, an infusion pipe 132 rotatably connected to the moving rod 131, and two groups of coating rollers 133 arranged at the upper and lower ends of the infusion pipe 132.

[0038] In this embodiment, the workpiece is clamped by providing a first clamping member 111, and the first clamping member 111 is used to clamp both ends of the workpiece. On the one hand, the contact between the plating solution and the workpiece is blocked, and on the other hand, the plating solution cannot affect the flow of the plating solution into the interior of the workpiece. Thus, while ensuring that the inner and outer surfaces of the workpiece are well coated, the coating on the inner and outer surfaces of both ends of the workpiece can be extended, so that a groove can be formed in the coating after cooling.

[0039] In detail, the adjusting part 1113 can be set as a cylinder fixed on a fixed frame, and a rack is inherently provided on the telescopic shaft of the cylinder, and a gear is meshed on the rack, and the gear is fixed above the first clamping jaw 1112, so that the first clamping jaw 1112 is activated by the telescopic rod of the cylinder to realize a 90° flip on the vertical plane, and the workpiece is adjusted from a horizontal state to a vertical state, and the contact block 1111 is rotatably connected to the moving part of the first clamping jaw 1112, and the first clamping jaw 1112 controls the contact block 1111 to approach or move away, so as to realize For clamping and lowering, the contact block 1111 is annular, and a click is set to drive the moving part of the first clamping jaw 1112 of the contact block 1111 to rotate. At the same time, a space is reserved in the middle of the contact block 1111 for the subsequent uniform member 121 to move inside the workpiece. The edge of the contact block 1111 is also hollow, so that the plating solution flows into the interior of the workpiece through the contact block 1111. Since the workpiece needs to be centrifuged after plating, the area occupied by the contact block 1111 should be as small as possible to avoid obstruction to the throwing out of the plating solution.

[0040] It should be noted that the contact block 1111 releases the two ends of the workpiece, and the thickness of the contact block 1111 should be less than the thickness of the side wall of the workpiece, that is, the contact block 1111 is attached to the two ends of the workpiece. In addition to adhering to the inner and outer surfaces of the workpiece, a part of the plating liquid will be left at both ends. After this part of the plating liquid solidifies, a part of the plating layer will extend from both ends of the inner and outer surfaces of the workpiece, thereby forming an annular groove on the workpiece.

[0041] It is worth mentioning that since the contact block 1111 needs to be out of contact with the plating solution and the contact block 1111 needs to be separated from the workpiece after the inner and outer layer plating is completed, it is necessary to apply a release agent to the position where the contact block 1111 contacts the plating solution. When the workpiece is flipped 90°, the slide rail is used to drive the moving rod 131 to move so that the coating roller 133 moves to the bottom of the contact block 1111. After the workpiece is separated, the two contact blocks 1111 are close to each other so that the contact block 1111 is inserted into the coating roller 133. The contact block 1111 is rotated to apply a release agent on the coating roller 133 to prevent the contact block 1111 from sticking to the coating when it is separated from the workpiece, thereby damaging the coating.

[0042] Further, if Figure 7 , Figure 10As shown, the uniform member 121 includes a rotating part 1211 arranged on the inner side of the contact block 1111 and horizontally slidably connected to the outer wall of the first clamp 1112, an air pipe 1212 arranged on the rotating part 1211, an air hole 1213 is opened on the air pipe 1212, an air guide plate 1214 is arranged on the air hole 1213, a negative pressure pipe 1215 radially slidably connected to the rotating part 1211 along the rotating part 1211, and an annular air outlet 1216 is arranged on the rotating part 1211.

[0043] In this embodiment, the plating liquid inside the workpiece is blown by the uniform member 121 to avoid the threads inside the workpiece affecting the uniform distribution and flow of the plating liquid. At the same time, the airflow can be used to promote the plating liquid to be thrown out of the workpiece during centrifugation.

[0044] In detail, the rotating part 1211 is horizontally slidably connected to the first clamping jaw 1112 through a cylinder, and controls the air pipe 1212 and the negative pressure pipe 1215 to extend into and out of the workpiece, the air pipe 1212 blows air outwards, and the negative pressure pipe 1215 inhales air.

[0045] After the workpiece is cleaned, some impurities will remain inside the workpiece. The negative pressure tube 1215 is extended by the air cylinder to make the negative pressure tube 1215 fit the inner surface of the workpiece, and the impurities on the inner surface of the workpiece are adsorbed and cleaned. At the same time, the air pipe 1212 is used to blow air to reduce the residual water stains in the workpiece. When the workpiece is immersed in the plating solution and rotates, due to the setting of the internal thread, the negative pressure tube 1215 is retracted, and the air pipe 1212 is rotated to one side of the plating solution. The air guide plate 1214 is used to make the air flow laugh at the root of the thread, so that the excess plating solution at the root of the thread is blown back to avoid excessive plating solution at the root of the thread, which affects the quality of the coating. When the workpiece is attached to the plating solution and lifted up, there is excess plating solution at the bottom of the workpiece that has not flowed out. At this time, due to the obstruction of the internal thread of the workpiece, the excess plating solution will remain in the middle of the thread. At this time, the plating solution at this place cannot be completely thrown out by centrifugation. At this time, the air flow of the air pipe 1212 is used again, and the air guide plate 1214 is used to blow the internal plating solution to the outside through the air flow, so as to promote the outflow of the plating solution. It should be noted that the structure of the air guide plate 1214 provided on the air hole 1213 is similar to the air guide plate 1214 on the air conditioner, and will not be introduced here.

[0046] It is worth mentioning that the rotating part 1211 is driven by a motor to rotate, causing the air pipe 1212 and the negative pressure pipe 1215 to rotate, thereby adjusting the direction of the airflow. At the same time, annular air outlets 1216 are set at both ends of the rotating part 1211. The annular air outlets 1216 are directly opposite to the contact blocks 1111 at both ends of the workpiece, and the airflow is used to allow the plating solution to remain in the area constructed by the contact blocks 1111.

[0047] Further, if Figure 11 , Figure 12 ,Figure 13 As shown, the moving member 21 includes a receiving table 211 disposed at the center of the mounting frame 112 and capable of horizontal lifting, a plurality of groups of second clamping jaws 212 uniformly rotatably connected around the receiving table 211, and a driving portion 213 fixed on the receiving table 211 and simultaneously driving the second clamping jaws 212 to move radially outward along the receiving table 211.

[0048] Further, as Figure 12 , Figure 13 shown, the repair plating member 22 is disposed at the bottom of the isolation cover 32 and includes a stable table 221 fixed on the isolation cover 32 and provided with a plurality of docking holes, a control board 222 vertically slidably connected to the stable table 221, and a repair plating disk 223 disposed on the control board 222 and located below each docking hole.

[0049] In this embodiment, the second clamping jaws 212 are provided to clamp the erected workpiece and move it to the stable table 221. The repair plating disk 223 is used to hold a certain amount of plating solution to perform repair plating on both ends of the workpiece.

[0050] Specifically, the receiving table 211 is driven to lift up and down by a cylinder. The driving portion 213 can be set such that the second clamping jaws 212 are slidably connected to the receiving table 211 through sliding rods. A cam is rotatably connected to the receiving table 211 through a motor. The rotation of the cam is used to simultaneously drive a plurality of sliding rods, that is, a plurality of second clamping jaws 212, to move outward at the same time. After grasping the workpiece, the workpiece is moved downward. At the same time, the repair plating disk 223 scoops out the plating solution from the plating solution pool 01 and moves upward, so that the lower end of the workpiece is inserted into the repair plating disk 223, enabling the plating solution to penetrate into the reserved grooves to complete the filling, thereby achieving a complete coating.

[0051] It should be noted that the repair plating disk 223 is always located in the plating solution of the plating solution pool 01 and will only rise when repair plating is required. When it rises and scoops out a part of the plating solution and rises, the temperature of the repair plating disk 223 is relatively high. When it rises and contacts the workpiece, it will cause a certain melting of the coatings protruding from both ends of the workpiece, thereby promoting the bonding of the coatings, avoiding defects. The position of the stable table 221 is above the liquid level of the plating solution, and the temperature here is relatively high.

[0052] Further, as Figure 11 shown, the air flow assembly 12 further includes a cooling member 122 for cooling the coating. The cooling member 122 includes a plurality of air outlet portions 1221 and absorption portions 1222. Among them, the air outlet portions 1221 are rotatably connected in the middle of each group of second clamping jaws 212 on the receiving table 211, and the absorption portions 1222 are rotatably connected in the middle of the first clamping jaws 1112 on the fixed frame.

[0053] In this embodiment, by setting the air outlet part 1221 and the absorption part 1222 to continuously adjust the angle through a motor, after centrifuging the inside and outside of the workpiece, the plating layer on the outside of the workpiece is rapidly cooled by the air flow, facilitating the clamping by the second clamping jaw 212.

[0054] It should be noted that when cooling the workpiece, the fixing part needs to be lifted out of the isolation cover 32 to avoid having a greater impact on the temperature inside the isolation cover 32.

[0055] Embodiment Two As Figure 14 shown, the same or corresponding components as those in Embodiment One adopt the corresponding reference numerals of Embodiment One. For the sake of simplicity, only the differences from Embodiment One will be described below. The differences between this Embodiment Two and Embodiment One are as follows: Furthermore, as Figure 13 shown, for the surface treatment method, applying the surface treatment equipment for stainless steel seamless pipe fittings described in Embodiment One, it includes the following steps: Step One, cleaning step. The clamping robotic arm 03 places the workpieces one by one on the double-axis drum 361 of the loading plate 34. At this time, the loading plate 34 is at the lowest position. The cleaning roller 362 and the brush 364 clean the inside and outside of the workpiece. After the cleaning is completed, the loading plate 34 moves upward. At this time, the double-axis sliding table 02 moves the fixing mechanism 1 above the loading table. The first clamping jaws 1112 clamp the workpiece from both ends of the workpiece, the uniform member 121 extends into the workpiece, and at the same time the cooling member 122 is also started to use the air flow to assist the workpiece to dry quickly for subsequent plating. Step Two, plating step. The double-axis motor controls the workpiece to move down from the isolation cover 32 into the dripping liquid, so that the lower part of the workpiece is immersed in the plating solution. The contact block 1111 drives the workpiece to rotate while the uniform member 121 outputs air flow, so that the plating solution can be evenly attached to the inner thread surface of the workpiece, avoiding accumulation at the root of the thread. After the plating is completed, the workpiece rises, the fixing frame rotates for centrifuging, and at the same time the uniform member 121 uses the air guide plate 1214 to cover the air flow direction to blow out the redundant plating solution inside the plating layer by the air flow, avoiding the plating solution from accumulating at the lower part inside the workpiece due to gravity. Step Three, supplementary plating step. After centrifuging is completed, the first clamping jaws 1112 flip to make the workpiece stand upright and transfer it to the second clamping jaw 212. The receiving table 211 descends to make the lower part of the workpiece enter the docking hole. At the same time, part of the plating solution is loaded into the supplementary plating disc 223 and it rises. The supplementary plating disc 223 contacts the workpiece and fills the plating solution into the plating grooves at both ends for supplementary plating. After one end is completed, the second clamping jaw 212 flips for supplementary plating at the other end. After the plating is completed, the workpiece is placed in the receiving pool 35, and at the same time a new workpiece is plated.

[0056] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front and back", "left and right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the invention.

[0057] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0058] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art under the technical disclosure of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A surface treatment device for stainless steel seamless pipe fittings, characterized in that, It includes a plating solution tank (01), a two-axis slide table (02), and a clamping robotic arm (03), and further includes: A fixing mechanism (1), the fixing mechanism (1) is arranged on the two-axis slide table (02) and is used for clamping and fixing the workpiece, so as to assist the workpiece to complete the plating layer. The fixing mechanism (1) includes a clamping component (11) arranged on the gantry slide rail, an air flow component (12) and an auxiliary component (13) arranged on the clamping component (11). The fixing mechanism (1) clamps the workpiece and moves it through the two-axis slide table (02) to achieve hot dipping. With the cooperation of the air flow component (12), the plating layer adheres evenly, and the auxiliary component (13) cleans the surface of the clamping component (11); The clamping component (11) includes a first clamping member (111) for clamping both ends of the workpiece, and a contact block (1111) is arranged on the first clamping member (111) for fixing both ends of the workpiece and making the plating layer at both ends of the workpiece present a groove shape; A supplementary plating mechanism (2), the supplementary plating mechanism (2) includes a moving member (21) arranged in the middle of the fixing mechanism (1) and a supplementary plating member (22) arranged above the plating solution tank (01). The moving member (21) moves the workpiece to the supplementary plating member (22) and performs supplementary plating on the grooves at both ends of the plating layer.

2. The surface treatment equipment for stainless steel seamless pipe fittings according to claim 1, characterized in that, It further includes a cleaning mechanism (3) arranged above the plating solution tank (01) and used for cleaning the workpiece before plating. The cleaning mechanism (3) includes a partition plate (31) arranged above the plating solution tank (01), an isolation cover (32) arranged on the partition plate (31), a cleaning tank (33) arranged on the partition plate (31), a feeding plate (34) that can be lifted inside the cleaning tank (33), a receiving tank (35) arranged in the middle of the feeding plate (34) and fixed above the partition plate (31), and further includes multiple groups of cleaning members (36) arranged on the feeding plate (34) and the cleaning tank (33).

3. The surface treatment equipment for stainless steel seamless pipe fittings according to claim 2, characterized in that, The cleaning member (36) includes a two-axis roller (361) arranged on the feeding plate (34), a cleaning roller (362) hinged on the feeding plate (34) on both sides of the two-axis roller (361), a storage cylinder (363) arranged on the outer side wall of the cleaning tank (33), and a brush (364) horizontally slidably connected inside the storage cylinder (363).

4. A surface treatment device for stainless steel seamless pipe fittings according to claim 1, characterized in that, The clamping component (11) includes a mounting frame (112) rotatably connected under the two-axis slide table (02), multiple groups of first clamping members (111) evenly arranged at the circumferential position of the mounting frame (112). The first clamping member (111) includes a first clamping jaw (1112) for clamping the workpiece, an adjusting part (1113) arranged on the mounting frame (112) and used for angular flipping of the first clamping jaw (1112), and a contact block (1111) rotatably connected to the clamping jaw of the first clamping jaw (1112).

5. A surface treatment device for a stainless steel seamless pipe fitting according to claim 1, characterized in that, The airflow component (12) includes a uniformity member (121). The uniformity member (121) includes a rotating portion (1211) disposed inside the contact block (1111) and horizontally slidably connected to the outer wall of the first jaw (1112), a trachea (1212) disposed on the rotating portion (1211), air holes (1213) formed in the trachea (1212), a wind guide plate (1214) disposed on the air holes (1213), a negative pressure tube (1215) radially slidably connected to the rotating portion (1211) along the rotating portion (1211), and an annular air outlet (1216) disposed on the rotating portion (1211).

6. The surface treatment device for stainless steel seamless pipe fittings according to claim 5, characterized in that, The auxiliary component (13) includes a moving rod (131) slidably connected to the side wall of the first jaw (1112), an infusion tube (132) rotatably connected to the moving rod (131), and two groups of coating rollers (133) disposed at the upper and lower ends of the infusion tube (132).

7. A surface treatment device for stainless steel seamless pipe fittings according to claim 1, characterized in that, The moving member (21) includes a receiving platform (211) disposed at the center of the mounting frame (112) and horizontally movable up and down, a plurality of groups of second jaws (212) uniformly rotatably connected around the receiving platform (211), and a driving portion (213) fixed on the receiving platform (211) and simultaneously driving the second jaws (212) to move radially outward along the receiving platform (211).

8. The surface treatment equipment for stainless steel seamless pipe fittings according to claim 2, characterized in that, The repair plating member (22) is disposed at the bottom of the isolation cover (32), and includes a stable platform (221) fixed on the isolation cover (32) and provided with a plurality of docking holes, a control board (222) vertically slidably connected to the stable platform (221), and a repair plating disc (223) disposed on the control board (222) and located below each docking hole.

9. The surface treatment device for stainless steel seamless pipe fittings according to claim 5, characterized in that, The airflow component (12) further includes a cooling member (122) cooled by the plating. The cooling member (122) includes a plurality of groups of air outlet portions (1221) and absorption portions (1222). Among them, the air outlet portions (1221) are rotatably connected between the second jaws (212) of each group on the receiving platform (211), and the absorption portions (1222) are rotatably connected between the first jaws (1112) on the fixed frame.

10. A surface treatment method, applied to the surface treatment equipment for a stainless steel seamless pipe fitting according to any one of claims 1-9, characterized in that, Including the following steps: Step 1, cleaning step. The clamping robotic arm (03) places the workpieces one by one on the double-axis drum (361) of the loading plate (34). At this time, the loading plate (34) is in the lowest position. The cleaning roller (362) and the brush (364) clean the inside and outside of the workpiece. After the cleaning is completed, the loading plate (34) moves up. At this time, the double-axis slide (02) moves the fixing mechanism (1) above the loading table. The first jaws (1112) clamp the workpiece from both ends of the workpiece, the uniformity member (121) extends into the workpiece, and at the same time, the cooling member (122) is also started to use the airflow to assist the workpiece to dry quickly for subsequent plating; Step 2, plating step: The biaxial motor controls the workpiece to move down from the isolation cover (32) into the dripping liquid, so that the lower part of the workpiece is immersed in the plating solution. The contact block (1111) drives the workpiece to rotate while the uniform member (121) outputs air flow, enabling the plating solution to uniformly adhere to the inner thread surface of the workpiece and preventing it from accumulating at the root of the thread. After the plating is completed, the workpiece rises, the fixing frame rotates, and centrifugation is carried out. At the same time, the uniform member (121) uses the air guide plate (1214) to cover the air flow direction and blows out the excess plating solution inside the plating layer with the air flow, preventing the plating solution from accumulating at the lower part inside the workpiece due to gravity; Step 3, supplementary plating step: After centrifugation, the first jaw (1112) flips to make the workpiece stand upright and transfers it to the second jaw (212). The receiving table (211) descends, allowing the lower part of the workpiece to enter the docking hole. At the same time, part of the plating solution is loaded into the supplementary plating disk (223) and it rises. The supplementary plating disk (223) contacts the workpiece and fills the plating solution into the plating grooves at both ends for supplementary plating. After one end is completed, the second jaw (212) flips to carry out supplementary plating at the other end. After the plating is completed, the workpiece is placed in the receiving pool (35), and at the same time, a new workpiece is plated.

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