Continuous additive manufacturing device for welding neck flange

Abstract

The invention discloses a continuous additive manufacturing device for a hubbed welding neck flange, and belongs to the technical field of flange additive manufacturing. The rotating platform is a prism, the rotating platform is hinged to the platform frame, and a three-jaw chuck is arranged on each side face of the rotating platform; the first rotary driver is mounted on the platform frame; the annular supporting bottom piece is clamped on the three-jaw chuck, the first rotating driver rotates to drive the rotating platform to rotate, the surfacing mechanical arm conducts welding on the supporting bottom piece to complete additive manufacturing of a welding neck flange blank, the rotating platform rotates, the polishing mechanism conducts surface treatment on a welding neck flange, and the rotating platform rotates. The heat treatment mechanism carries out heat treatment on the welding neck flange, the rotating platform rotates, unloading and heat preservation of the welding neck flange are completed, and the steps are repeated, so that coherent welding additive manufacturing of the welding neck flange can be achieved, cutting blanking is not needed, and the machining efficiency of the welding neck flange is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of flange additive manufacturing, and particularly relates to a continuous additive manufacturing device for a necked butt-welding flange. Background Art

[0002] A necked butt-welding flange refers to a flange with a tapered neck and is butt-welded to a cylinder or pipeline. Generally, a necked butt-welding flange is manufactured by forging.

[0003] Additive manufacturing technology is a technology for manufacturing solid parts by the method of layer-by-layer material accumulation based on three-dimensional CAD data, and it has also been gradually used in the manufacturing of necked butt-welding flanges to improve processing efficiency.

[0004] Chinese Patent (CN201710407026.1) discloses an additive manufacturing device capable of on-line heat treatment, including a forming chamber with a preset low vacuum inside, and a gas inlet and a gas outlet are provided thereon; a plasma generator, connected to the forming chamber, for generating an electron beam to scan and preheat the powder layer in the forming chamber; a laser generator, installed on the forming chamber and located on one side of the gas inlet, for generating a laser beam to melt the powder layer; a controller, connected to the plasma generator and the laser generator. The present invention also discloses an additive manufacturing method capable of on-line heat treatment.

[0005] Chinese Patent (CN202321679015.6) discloses an on-line heat treatment device for powder-fed additive manufacturing. A first slide table, a second slide table, and a third slide table arranged from bottom to top respectively correspond to the X, Y, and Z directions in three-dimensional space. A first slider guide mechanism, a second slider guide mechanism, and a third slider guide mechanism are respectively provided on the first slide table, the second slide table, and the third slide table. Among them: a rotary displacement table is installed on the third slider guide mechanism arranged vertically. One end of a pneumatic chuck corresponds to one side of a workpiece, the other end of the pneumatic chuck is connected to one end of the rotary displacement table, and the other end of the rotary displacement table is installed on the slider of the third slider guide mechanism; a high-frequency power supply is arranged on the other side of the workpiece, the output end of the high-frequency power supply is connected to an induction coil, and the induction coil corresponds to the additive weld seam on the workpiece.

[0006] At present, after additive welding of the butt-welding flange, surface treatment and heat treatment are required. Although the existing devices can complete additive welding and heat treatment in the same machining center, the butt-welding flange after heat treatment still needs to be cut from the support and then surface treatment operations are carried out, resulting in poor coherence of the overall manufacturing operations and low processing efficiency. Summary of the Invention

[0007] The purpose of the present invention is to provide a continuous additive manufacturing device for a necked butt-welding flange to solve the above-mentioned existing problems.

[0008] To achieve the above object, the present invention adopts the following technical solutions: A continuous additive manufacturing device for a neck butt welding flange, comprising:

[0009] A platform frame;

[0010] A rotating platform, which is a prism, and the rotating platform is hinged on the platform frame, and three-jaw chucks are provided on each side surface of the rotating platform;

[0011] A first rotation driver, which is installed on the platform frame, and the first rotation driver is connected to and drives the rotating platform;

[0012] A surfacing robotic arm, which is installed on the platform frame, and the surfacing robotic arm is aligned with the uppermost three-jaw chuck;

[0013] A polishing mechanism, which is installed on the platform frame, and the polishing mechanism extends to one of the three-jaw chucks;

[0014] A heat treatment mechanism, which is installed on the platform frame and extends to one of the three-jaw chucks, and the heat treatment mechanism is located below the polishing mechanism;

[0015] A heat preservation collection tank, which is provided on the platform frame, and the heat preservation collection tank is located below the rotating platform.

[0016] As a further description of the above technical solution:

[0017] The polishing mechanism includes a first telescopic driver, a second rotation driver, two third rotation drivers and two polishing rollers. The first telescopic driver is fixedly connected to the platform frame. The second rotation driver is installed on the telescopic end of the first telescopic driver. A transposition plate is provided at the driving end of the second rotation driver. The two third rotation drivers are connected to the transposition plate. The two polishing rollers are respectively installed at the driving ends of the two third rotation drivers, and the two polishing rollers extend to the corresponding three-jaw chucks.

[0018] As a further description of the above technical solution:

[0019] The axis centers of one of the third rotation drivers and the second rotation driver coincide with the axis center of the corresponding three-jaw chuck.

[0020] As a further description of the above technical solution:

[0021] A stepped surface is provided at the corner of the other polishing roller.

[0022] As a further description of the above technical solution:

[0023] The heat treatment mechanism includes a second telescopic driver and an induction heater. The second telescopic driver is fixedly connected to the platform frame. The induction heater is installed on the telescopic end of the second telescopic driver, and the induction heater extends to the corresponding three-jaw chuck.

[0024] As a further description of the above technical solution:

[0025] The induction heater is cylindrical, and the axis of the induction heater coincides with the axis of the corresponding three-jaw chuck.

[0026] As a further description of the above technical solution:

[0027] The first telescopic driver and the second telescopic driver are both servo electric cylinders, and the first rotary driver, the second rotary driver and the third rotary driver are all servo motors.

[0028] As a further description of the above technical solution:

[0029] The heat-insulating collection tank is made of ceramic material.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. In the present invention, the annular support film is clamped on the three-jaw chuck, the first rotary driver rotates to drive the rotating platform to rotate, the surfacing robot arm welds on the support film to complete the additive manufacturing of the butt-weld flange blank, the rotating platform rotates, the polishing mechanism performs surface treatment on the butt-weld flange, the rotating platform rotates, the heat treatment mechanism performs heat treatment on the butt-weld flange, the rotating platform rotates, and the unloading and heat preservation of the butt-weld flange are completed. This cycle is repeated to achieve continuous welding additive manufacturing of the butt-weld flange, without cutting and blanking, which greatly improves the processing efficiency of the butt-weld flange.

[0032] 2. In the present invention, the first telescopic driver is extended, one of the polishing rollers is inserted into the interior of the butt-welding flange, and the other polishing roller is fitted to the outer wall of the butt-welding flange. After the two third rotary drivers work, they drive the two polishing rollers to polish the inside and outside of the butt-welding flange at the same time. The second rotary driver rotates to drive the transposition plate to rotate, so that the polishing roller fitting the outer wall of the butt-welding flange fully polishes the outer wall of the butt-welding flange to ensure uniform polishing.

[0033] 3. In the present invention, the induction heater is sent to the butt-welding flange after the second telescopic driver is extended, and the induction heater performs induction heating on the polished butt-welding flange, thereby completing the heat treatment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1Schematic diagram of the overall structure of a continuous additive manufacturing device for a necked butt-welding flange Figure 1 。

[0035] Figure 2 is Figure 1 a reference diagram of the usage state of

[0036] Figure 3 Schematic diagram of the overall structure of a continuous additive manufacturing device for a necked butt-welding flange Figure 2 。

[0037] Figure 4 is Figure 3 a reference diagram of the usage state of

[0038] Figure 5 A sectional view of the usage state of a continuous additive manufacturing device for a necked butt-welding flange

[0039] Figure 6 is Figure 5 a partial enlarged view of part A in

[0040] Legend description:

[0041] 1. Platform frame; 2. Rotary platform; 3. Three-jaw chuck; 4. First rotary driver; 5. Surfacing robotic arm; 6. Polishing mechanism; 61. First telescopic driver; 62. Second rotary driver; 63. Third rotary driver; 64. Polishing roller; 7. Heat treatment mechanism; 71. Second telescopic driver; 72. Induction heater; 8. Heat preservation collection tank; 9. Transposition plate; 10. Step surface Specific implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention

[0043] Please refer to Figures 1-6 , the present invention provides a technical solution: a continuous additive manufacturing device for a necked butt-welding flange, including:

[0044] Platform frame 1;

[0045] Rotary platform 2, which is a prism, and the rotary platform 2 is hinged on the platform frame 1, and three-jaw chucks 3 are arranged on each side surface of the rotary platform 2;

[0046] First rotary driver 4, which is installed on the platform frame 1, and the first rotary driver 4 is connected to and drives the rotary platform 2;

[0047] The surfacing manipulator 5 is installed on the platform frame 1, and the surfacing manipulator 5 is aligned with the three-jaw chuck 3 at the uppermost position;

[0048] The polishing mechanism 6 is installed on the platform frame 1, and the polishing mechanism 6 extends to one of the three-jaw chucks 3;

[0049] The heat treatment mechanism 7 is installed on the platform frame 1 and extends to one of the three-jaw chucks 3, and the heat treatment mechanism 7 is located below the polishing mechanism 6;

[0050] The heat preservation collection tank 8 is arranged on the platform frame 1, and the heat preservation collection tank 8 is located below the rotary platform 2;

[0051] The polishing mechanism 6 includes a first telescopic driver 61, a second rotary driver 62, two third rotary drivers 63 and two polishing rollers 64. The first telescopic driver 61 is fixedly connected to the platform frame 1. The second rotary driver 62 is installed on the telescopic end of the first telescopic driver 61. A transposition plate 9 is arranged at the driving end of the second rotary driver 62. The two third rotary drivers 63 are connected to the transposition plate 9. The two polishing rollers 64 are respectively installed at the driving ends of the two third rotary drivers 63, and the two polishing rollers 64 extend to the corresponding three-jaw chucks 3. When the first telescopic driver 61 extends, one of the polishing rollers 64 is inserted into the interior of the butt welding flange, and the other polishing roller 64 fits against the outer wall of the butt welding flange. After the two third rotary drivers 63 work, they drive the two polishing rollers 64 to perform internal and external simultaneous polishing on the butt welding flange. The second rotary driver 62 rotates to drive the transposition plate 9 to rotate, so that the polishing roller 64 that fits against the outer wall of the butt welding flange performs a comprehensive polishing operation on the outer wall of the butt welding flange, ensuring uniform polishing;

[0052] The axis of one of the third rotary drivers 63 and the axis of the second rotary driver 62 coincide with the axis of the corresponding three-jaw chuck 3, ensuring that one of the polishing rollers 64 performs a uniform polishing operation on the inside of the rotating body of the butt welding flange;

[0053] A stepped surface 10 is arranged at the corner of the other polishing roller 64, and the stepped surface 10 is used to adapt to the structure of the corner part of the butt welding flange, ensuring good polishing effect on the outer surface of the butt welding flange;

[0054] The heat treatment mechanism 7 includes a second telescopic driver 71 and an induction heater 72. The second telescopic driver 71 is fixedly connected to the platform frame 1. The induction heater 72 is installed at the telescopic end of the second telescopic driver 71, and the induction heater 72 extends to the corresponding three-jaw chuck 3. After the second telescopic driver 71 extends, the induction heater 72 is sent to the butt welding flange. The induction heater 72 performs induction heating on the polished butt welding flange, thereby completing the heat treatment operation;

[0055] The induction heater 72 is cylindrical, and the axis of the induction heater 72 coincides with the axis of the corresponding three-jaw chuck 3;

[0056] The first telescopic driver 61 and the second telescopic driver 71 are both servo electric cylinders, and the first rotary driver 4, the second rotary driver 62, and the third rotary driver 63 are all servo motors, which is convenient for servo control by the controller;

[0057] The heat preservation collection tank 8 is made of ceramic material and has a high temperature resistance effect.

[0058] Working principle: First, find an empty three-jaw chuck 3, clamp the circular support negative film on the three-jaw chuck 3, and use it as the support for welding additive manufacturing. The first rotary driver 4 rotates to drive the rotary platform 2 to rotate, and the surfacing robotic arm 5 welds on the support negative film to complete the additive manufacturing of the butt welding flange blank. Secondly, the first rotary driver 4 rotates to drive the rotary platform 2 to rotate, and the blank of the butt welding flange is located at the polishing mechanism 6. At this time, the first telescopic driver 61 extends, and one of the polishing rollers 64 is inserted into the inside of the butt welding flange, and the other polishing roller 64 fits against the outer wall of the butt welding flange. After the two third rotary drivers 63 work, they drive the two polishing rollers 64 to perform internal and external simultaneous polishing on the butt welding flange. The second rotary driver 62 rotates to drive the transposition plate 9 to rotate, so that the polishing roller 64 that fits against the outer wall of the butt welding flange performs a full polishing operation on the outer wall of the butt welding flange, and the stepped surface 10 is used to adapt to the structure of the corner part of the butt welding flange to ensure uniform polishing. Then, the first rotary driver 4 rotates to drive the rotary platform 2 to rotate, and the polished butt welding flange is located at the heat treatment mechanism 7. At this time, after the second telescopic driver 71 extends, the induction heater 72 is sent to the butt welding flange, and the induction heater 72 performs induction heating on the polished butt welding flange, thereby completing the heat treatment operation. Finally, the first rotary driver 4 rotates to drive the rotary platform 2 to rotate, and the butt welding flange after heat treatment heating is located above the heat preservation collection tank 8. The three-jaw chuck 3 is opened so that the butt welding flange falls into the heat preservation collection tank 8 for heat preservation collection.

[0059] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention any equivalent replacement or change made according to the technical solution and inventive concept of the present invention.

Claims

1. A continuous additive manufacturing device for a neck butt welding flange, characterized in that: include: Platform frame (1); A rotating platform (2) which is a prism and is hinged on the platform frame (1), and a three-jaw chuck (3) is provided on each side of the rotating platform (2); A first rotary drive (4) mounted on the platform frame (1), and the first rotary drive (4) is connected to and drives the rotary platform (2); A cladding robot arm (5) is mounted on the platform frame (1), and the cladding robot arm (5) is aligned with the three-jaw chuck (3) located at the top; A polishing mechanism (6) is mounted on the platform frame (1), and the polishing mechanism (6) extends to the three-jaw chuck (3); A heat treatment mechanism (7) is installed on the platform frame (1) and extends to the three-jaw chuck (3), and the heat treatment mechanism (7) is located below the polishing mechanism (6); A heat-insulating collection tank (8) is arranged on the platform frame (1), and the heat-insulating collection tank (8) is located below the rotating platform (2).

2. A continuous additive manufacturing device for a neck-welded flange according to claim 1, characterized in that: The polishing mechanism (6) comprises a first telescopic drive (61), a second rotary drive (62), two third rotary drives (63) and two polishing rollers (64), wherein the first telescopic drive (61) is fixedly connected to the platform frame (1), the second rotary drive (62) is mounted on the telescopic end of the first telescopic drive (61), a transfer plate (9) is provided at the driving end of the second rotary drive (62), the two third rotary drives (63) are connected to the transfer plate (9), the two polishing rollers (64) are respectively mounted on the driving ends of the two third rotary drives (63), and the two polishing rollers (64) extend to the corresponding three-jaw chuck (3).

3. A continuous additive manufacturing device for a neck-welded flange according to claim 2, characterized in that: The axis center of one of the third rotary drivers (63) and the axis center of the second rotary driver (62) both coincide with the axis center of the corresponding three-jaw chuck (3).

4. A continuous additive manufacturing device for a neck-welded flange according to claim 3, characterized in that: A step surface (10) is provided at a corner of the other polishing roller (64).

5. A continuous additive manufacturing device for a neck-welded flange according to claim 4, characterized in that: The heat treatment mechanism (7) comprises a second telescopic drive (71) and an induction heater (72), wherein the second telescopic drive (71) is fixedly connected to the platform frame (1), and the induction heater (72) is installed on the telescopic end of the second telescopic drive (71), and the induction heater (72) extends to the corresponding three-jaw chuck (3).

6. A continuous additive manufacturing device for a neck-welded flange according to claim 5, characterized in that: The induction heater (72) is cylindrical, and the axis of the induction heater (72) coincides with the axis of the corresponding three-jaw chuck (3).

7. A continuous additive manufacturing device for a neck-welded flange according to claim 6, characterized in that: The first telescopic driver (61) and the second telescopic driver (71) are both servo electric cylinders, and the first rotary driver (4), the second rotary driver (62) and the third rotary driver (63) are all servo motors.

8. The continuous additive manufacturing device for a neck-welded flange according to claim 7, characterized in that: The heat-insulating collection tank (8) is made of ceramic material.

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