A ship stern column welding device for ship processing

Abstract

The present invention discloses a ship stern welding device for ship processing, which relates to the technical field of ship stern welding. The device comprises a support base and a frame welded to the top outer wall of the support base. The frame is connected to a placement plate via a welding height adjustment mechanism. A first controller is fixedly mounted on the rear outer wall of the frame, and a second controller is fixedly mounted on the top outer wall of the support base. A plasma arc welder is fixedly mounted on the front outer wall of the placement plate, and an inflation mechanism is provided on the top of the placement plate. During the welding process, the present invention facilitates the flexible adjustment of the welding height of the plasma arc welder and the flexible switching of the shielding gas according to different welding conditions, thereby improving the online switching efficiency of the shielding gas. The present invention facilitates the control of the automatic rotation of the ship stern part by setting a workpiece welding auxiliary rotator, so that the plasma arc welder can perform uniform welding processing on the welding points of the two ship stern parts.

Description

Technical Field

[0001] The present invention relates to the technical field of ship stern column welding, in particular to a ship stern column welding device for ship processing. Background Art

[0002] During the shipbuilding process, some ship stern columns that are not long enough or some broken ship stern columns need to be welded together using welding equipment. However, the existing ship stern column welding equipment has the following problems during actual operation:

[0003] First, during the welding process, shielding gas is generally introduced into the welding device. However, in existing welding devices, the shielding gas cannot be flexibly switched online according to different welding conditions. The operating efficiency is relatively low when switching the shielding gas.

[0004] Secondly, during the welding process, it is inconvenient to control the automatic rotation of the ship's stern column parts, which results in the welder being unable to perform uniform welding treatment on the welding points of the two ship's stern column parts, resulting in a decrease in welding quality. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a ship stern column assembly and welding device for ship processing, which effectively solves the problem that the existing ship stern column assembly and welding device cannot flexibly switch the shielding gas online according to different welding conditions during the welding process, and the operating efficiency is relatively low when the shielding gas is switched. It also solves the problem that the existing ship stern column assembly and welding device is inconvenient to control the automatic rotation of the ship stern column parts during the welding process, thereby causing the welder to be unable to uniformly weld the welding points of the two ship stern column parts, resulting in a decrease in welding quality.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A ship stern column welding device for ship processing includes a support base and a frame welded to the top outer wall of the support base. The frame is connected to a placement plate via a welded height adjustment mechanism. A first controller is fixedly mounted on the rear outer wall of the frame, and a second controller is fixedly mounted on the top outer wall of the support base.

[0008] A plasma arc welder is fixedly mounted on the front outer wall of the placement plate, an inflation mechanism is provided on the top of the placement plate, and two workpiece support mechanisms are provided on the support seat, and both workpiece support mechanisms include a hydraulic pushing component and a spacing-adjustable bearing component;

[0009] The inflation mechanism includes a gas mixing assembly, an argon storage tank and a helium storage tank fixed in sequence to the outer wall of the top of the placement plate, a three-way pipe, an argon gas release valve and a helium gas release valve;

[0010] The gas mixing assembly includes a mixing box fixedly connected to the top outer wall of the placement plate, a support rod fixedly connected to the bottom inner wall of the mixing box, a shaft rotatably mounted on the support rod, and two impellers fixedly sleeved on both ends of the shaft in sequence;

[0011] The welding height adjustment mechanism includes a guide assembly, a ball screw rotatably mounted in a frame, a lifting seat, a screw nut fixedly sleeved in the lifting seat and threadedly connected to the ball screw, and a stepping motor fixedly mounted on the top outer wall of the frame.

[0012] Preferably, two ends of the tee are connected to the argon storage tank and the helium storage tank respectively, the other end of the tee is connected to the rear of the mixing box, and the front of the mixing box is connected to the plasma arc welder through the air supply pipe.

[0013] Preferably, the argon purge valve is installed at the connection between the argon storage tank and the tee, and the helium purge valve is installed at the connection between the helium storage tank and the tee, and both the argon purge valve and the helium purge valve are solenoid valves and are electrically connected to the first controller.

[0014] Preferably, the output shaft of the stepper motor passes through the top of the frame and is coaxially fixedly connected to the top of the ball screw through a coupling. The guide assembly includes two guide vertical shafts symmetrically welded in the frame. Two linear bearings are fixedly embedded in the lifting seat, and the two linear bearings are movably connected to the two guide vertical shafts respectively.

[0015] Preferably, the hydraulic pushing assembly includes two hydraulic push rods fixedly mounted on the side walls of the support seat and a same sliding seat fixedly connected to the telescopic ends of the two hydraulic push rods, and the sliding seat forms a sliding fit with the support seat.

[0016] Preferably, the spacing-adjustable bearing assembly includes a mounting groove opened on the top of the sliding seat, a forward and reverse threaded screw rotatably installed in the mounting groove, two adjustment seats screwed in sequence to the two threaded ends of the forward and reverse threaded screw, a servo motor fixedly installed on the side wall of the sliding seat, two slide rails symmetrically fixed on the outer wall of the top of the sliding seat, and two workpiece welding auxiliary rotators sequentially arranged on the top of the two adjustment seats.

[0017] Preferably, the output shaft of the servo motor is coaxially fixedly connected to one end of the forward and reverse threaded screw, and the two adjustment seats are slidably connected between the two slide rails.

[0018] Preferably, the workpiece welding auxiliary rotator includes a control component, a fixing box fixedly connected to the top outer wall of the adjustment seat, two rotating shafts rotatably installed in the fixing box, and two rollers fixedly sleeved on the two rotating shafts in sequence.

[0019] Preferably, the control component includes two worm gears fixedly mounted on one end of the two rotating shafts in sequence, a protective cover fixedly connected to the side wall of the fixed box, a driving motor fixedly connected to the front outer wall of the protective cover through a motor support plate, a transmission shaft rotatably installed in the protective cover, and two worms fixedly mounted on the transmission shaft in sequence.

[0020] Preferably, the two worms are respectively meshed with the two worm wheels and are both located in the protective cover, the spiral directions of the two worms are opposite, and the output shaft of the drive motor is coaxially fixedly connected to one end of the transmission shaft through a coupling.

[0021] The beneficial effects of the present invention are:

[0022] 1. During the welding process, the present invention facilitates flexible adjustment of the welding height of the plasma arc welder and can flexibly switch the shielding gas according to different welding conditions, thereby improving the online switching efficiency of the shielding gas;

[0023] 2. When the mixed gas is introduced into the mixing box, the two impellers automatically rotate under the impetus of the airflow to improve the mixing effect of the mixed gas, thereby helping to improve the protective effect of the subsequent mixed gas on the plasma arc welder;

[0024] 3. The present invention facilitates flexible adjustment of the support spacing between the two workpiece welding auxiliary rotators on the two adjustment seats by providing an adjustable spacing bearing assembly, thereby facilitating adaptation to the use requirements of ship stern parts of different lengths. Furthermore, the two hydraulic push assemblies facilitate the automated docking operation of the two ship stern parts, thereby improving the docking efficiency.

[0025] 4. The present invention facilitates the control of the automatic rotation of the ship stern part by setting the workpiece welding auxiliary rotator, so that the plasma arc welder can uniformly weld the welding points of the two ship stern parts, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 It is a three-dimensional enlarged structural schematic diagram of the inflation mechanism of the present invention;

[0029] Figure 3This is a schematic diagram of the three-dimensional enlarged structure of the interior of the mixing box of the present invention;

[0030] Figure 4 Schematic diagram of the three-dimensional explosion structure of the gas mixing assembly of the present invention;

[0031] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the welding height adjustment mechanism of the present invention;

[0032] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the workpiece support mechanism of the present invention;

[0033] Figure 7 It is a three-dimensional enlarged structural diagram of the connection between the positive and negative thread screws and the two adjustment seats of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional enlarged structure of the workpiece welding auxiliary rotator of the present invention;

[0035] Figure 9 It is a schematic diagram of the three-dimensional enlarged structure of the control component of the present invention.

[0036] In the figure: 1. Support base; 2. Frame; 3. Placement plate; 4. First controller; 5. Plasma arc welder; 6. Argon storage tank; 7. Helium storage tank; 8. Tee pipe; 9. Argon release valve; 10. Helium release valve; 11. Mixing box; 12. Support rod; 13. Shaft; 14. Impeller; 15. Ball screw; 16. Lifting seat; 17. Screw nut; 18. Stepper motor; 19. Guide vertical axis; 20. Linear bearing; 21. Hydraulic push rod; 22. Sliding seat; 23. Positive and negative thread screw; 24. Adjustment seat; 25. Servo motor; 26. Slide rail; 27. Fixed box; 28. Rotating shaft; 29. Roller; 30. Worm gear; 31. Protective cover; 32. Drive motor; 33. Transmission shaft; 34. Worm; 35. Second controller. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Example 1, with reference to Figure 1-5 A ship stern column welding device for ship processing includes a support base 1 and a frame 2 welded to the top outer wall of the support base 1;

[0039] In this embodiment, a placement plate 3 is connected to the frame 2 via a welding height adjustment mechanism. A first controller 4 is fixedly mounted on the rear outer wall of the frame 2, which facilitates control of the electrical components of the entire embodiment. A plasma arc welder 5 is fixedly mounted on the front outer wall of the placement plate 3, and an inflation mechanism is provided on the top of the placement plate 3.

[0040] Specifically, the inflation mechanism includes a gas mixing assembly, an argon storage tank 6 and a helium storage tank 7 fixed to the top outer wall of the placement plate 3 in sequence, a three-way pipe 8, an argon gas release valve 9 and a helium gas release valve 10;

[0041] Furthermore, the gas mixing assembly includes a mixing box 11 fixedly connected to the top outer wall of the placement plate 3, a support rod 12 fixedly connected to the bottom inner wall of the mixing box 11, a shaft 13 rotatably mounted on the support rod 12, and two impellers 14 fixedly mounted on both ends of the shaft 13 in sequence. When mixed gas is introduced into the mixing box 11, the two impellers 14 automatically rotate under the impetus of the airflow to improve the mixing effect of the mixed gas, thereby helping to improve the protective effect of the subsequent mixed gas on the plasma arc welder 5;

[0042] Furthermore, two ends of the tee pipe 8 are respectively connected to the argon storage tank 6 and the helium storage tank 7, and the other end of the tee pipe 8 is connected to the rear of the mixing box 11. The front of the mixing box 11 is connected to the plasma arc welder 5 through the air supply pipe. The argon gas release valve 9 is installed at the connection between the argon gas storage tank 6 and the tee pipe 8, and the helium gas release valve 10 is installed at the connection between the helium gas storage tank 7 and the tee pipe 8. Both the argon gas release valve 9 and the helium gas release valve 10 are solenoid valves and are electrically connected to the first controller 4.

[0043] Specifically, the welding height adjustment mechanism includes a guide assembly, a ball screw 15 rotatably mounted in the frame 2, a lifting seat 16, a screw nut 17 fixedly sleeved in the lifting seat 16 and threadedly connected to the ball screw 15, and a stepping motor 18 fixedly mounted on the top outer wall of the frame 2;

[0044] Furthermore, the output shaft of the stepper motor 18 passes through the top of the frame 2 and is coaxially fixedly connected to the top of the ball screw 15 through a coupling. The guide assembly includes two guide vertical shafts 19 symmetrically welded into the frame 2. Two linear bearings 20 are fixedly embedded in the lifting seat 16, and the two linear bearings 20 are movably connected to the two guide vertical shafts 19 respectively.

[0045] In specific use of this embodiment: first, the stepping motor 18 drives the ball screw 15 to rotate forward and reverse, and then, under the guidance of the guide assembly, the screw nut 17 threadedly connected to the ball screw 15 drives the lifting base 16 to move up and down, thereby facilitating the flexible adjustment of the welding height of the plasma arc welder 5;

[0046] Secondly, during the welding process, the argon gas in the argon storage tank 6 can be released into the plasma arc welder 5 for use by opening the argon gas release valve 9 alone, or the helium gas in the helium storage tank 7 can be released into the plasma arc welder 5 for use by opening the helium gas release valve 10 alone. The argon gas release valve 9 and the helium gas release valve 10 can also be opened at the same time to release the mixed gas of argon and helium into the plasma arc welder 5 for use. In this way, the shielding gas can be flexibly switched according to different welding conditions, thereby improving the online switching efficiency of the shielding gas.

[0047] Example 2, reference Figure 1 and Figure 6-9 This embodiment is optimized based on the first embodiment. Two workpiece support mechanisms are provided on the support base 1. Both workpiece support mechanisms include a hydraulic pushing component and a spacing-adjustable bearing component. A second controller 35 is fixedly mounted on the top outer wall of the support base 1. The second controller 35 facilitates the control of the electrical components in the entire embodiment.

[0048] Specifically, the hydraulic pushing assembly includes two hydraulic push rods 21 fixedly mounted on the side wall of the support base 1 and a same sliding base 22 fixedly connected to the telescopic ends of the two hydraulic push rods 21, and the sliding base 22 forms a sliding fit with the support base 1;

[0049] Specifically, the spacing-adjustable bearing assembly includes a mounting slot provided on the top of the sliding seat 22, a forward and reverse threaded screw 23 rotatably mounted in the mounting slot, two adjustment seats 24 sequentially screwed to the two threaded ends of the forward and reverse threaded screw 23, a servo motor 25 fixedly mounted on the side wall of the sliding seat 22, two slide rails 26 symmetrically fixed to the outer wall of the top of the sliding seat 22, and two workpiece welding auxiliary rotators sequentially provided on the top of the two adjustment seats 24;

[0050] Furthermore, the output shaft of the servo motor 25 is coaxially fixedly connected to one end of the forward and reverse threaded screw 23, and the two adjustment seats 24 are slidably connected between the two slide rails 26;

[0051] When the spacing-adjustable bearing assembly is adjusted, the servo motor 25 drives the forward and reverse screws 23 to rotate forward and reverse, and then the two adjustment seats 24 threadedly connected to the forward and reverse screws 23 slide along the two slide rails 26. That is, the forward and reverse rotation of the forward and reverse screws 23 can make the two adjustment seats 24 move closer to or away from each other, so that the support spacing between the two workpiece welding auxiliary rotators on the two adjustment seats 24 can be flexibly adjusted, thereby facilitating the use of ship stern parts of different lengths.

[0052] More specifically, the workpiece welding auxiliary rotator includes a control component, a fixing box 27 fixedly connected to the top outer wall of the adjustment base 24, two rotating shafts 28 rotatably mounted in the fixing box 27, and two rotating rollers 29 fixedly mounted on the two rotating shafts 28.

[0053] Furthermore, the control components include two worm gears 30 fixedly mounted on one end of the two rotating shafts 28, a protective cover 31 fixedly connected to the side wall of the fixed box 27, a drive motor 32 fixedly connected to the front outer wall of the protective cover 31 through a motor support plate, a transmission shaft 33 rotatably mounted in the protective cover 31, and two worms 34 fixedly mounted on the transmission shaft 33.

[0054] Furthermore, two worms 34 are respectively meshed with the two worm wheels 30 and are both located in the protective cover 31. The spiral directions of the two worms 34 are opposite. The output shaft of the drive motor 32 is coaxially fixedly connected to one end of the transmission shaft 33 through a coupling.

[0055] When the workpiece welding auxiliary rotator is working: the two worms 34 on the transmission shaft 33 are driven to rotate by the driving motor 32, and then the two worm wheels 30 engaged with the two worms 34 in opposite spiral directions will drive the two rollers 29 on the two rotating shafts 28 to rotate relative to each other, so that the ship's stern column parts can be controlled to rotate automatically, so that the plasma arc welder 5 can evenly weld the welding points of the two ship's stern column parts, thereby improving the welding quality.

[0056] The use process of the present invention is as follows: first, the two ship stern parts to be welded are placed on the left and right workpiece welding auxiliary rotators respectively by hoisting, and then the hydraulic push rods 21 on both sides work synchronously to push the two sliding seats 22 to align and move them together, thereby facilitating the automatic docking operation of the two ship stern parts and improving the docking efficiency of the two.

[0057] Secondly, by all the workpiece welding auxiliary rotators working synchronously, the two ship stern parts in the docking state can be controlled to rotate automatically, and then the welding height of the plasma arc welder 5 can be flexibly adjusted through the welding height adjustment mechanism. At this time, the plasma arc welder 5 is used to weld the two rotating ship stern parts, so that the plasma arc welder 5 can evenly weld the welding points of the two ship stern parts, effectively improving the welding quality.

[0058] Finally, during the welding process, the argon gas in the argon storage tank 6 can be released into the plasma arc welder 5 for use by opening the argon gas release valve 9 alone, or the helium gas in the helium storage tank 7 can be released into the plasma arc welder 5 for use by opening the helium gas release valve 10 alone. The argon gas release valve 9 and the helium gas release valve 10 can also be opened at the same time to release the mixed gas of argon and helium into the plasma arc welder 5 for use. In this way, the shielding gas can be flexibly switched according to different welding conditions, thereby improving the online switching efficiency of the shielding gas.

[0059] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such a process, method, article or device.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A ship stern column welding device for ship processing, comprising a support base (1) and a frame (2) welded to the top outer wall of the support base (1), characterized in that: The frame (2) is connected to a placement plate (3) via a welded height adjustment mechanism, a first controller (4) is fixedly mounted on the rear outer wall of the frame (2), and a second controller (35) is fixedly mounted on the top outer wall of the support base (1); A plasma arc welder (5) is fixedly mounted on the front outer wall of the placement plate (3); an inflation mechanism is provided on the top of the placement plate (3); and two workpiece support mechanisms are provided on the support seat (1), and both workpiece support mechanisms include a hydraulic pushing component and a spacing-adjustable bearing component. The inflation mechanism comprises a gas mixing assembly, an argon storage tank (6) and a helium storage tank (7) fixed in sequence to the top outer wall of the placement plate (3), a three-way pipe (8), an argon gas release valve (9), and a helium gas release valve (10); The gas mixing assembly comprises a mixing box (11) fixedly connected to the top outer wall of the placement plate (3), a support rod (12) fixedly connected to the bottom inner wall of the mixing box (11), a shaft (13) rotatably mounted on the support rod (12), and two impellers (14) fixedly mounted on both ends of the shaft (13) in sequence; The welding height adjustment mechanism includes a guide assembly, a ball screw (15) rotatably mounted in the frame (2), a lifting seat (16), a screw nut (17) fixedly sleeved in the lifting seat (16) and threadedly connected to the ball screw (15), and a stepping motor (18) fixedly mounted on the top outer wall of the frame (2); The spacing-adjustable bearing assembly comprises a mounting groove provided on the top of a sliding seat (22), a forward and reverse threaded screw (23) rotatably mounted in the mounting groove, two adjustment seats (24) sequentially screwed to two threaded ends of the forward and reverse threaded screw (23), a servo motor (25) fixedly mounted on a side wall of the sliding seat (22), two slide rails (26) symmetrically fixed to the outer wall of the top of the sliding seat (22), and two workpiece welding auxiliary rotators sequentially arranged on the tops of the two adjustment seats (24).

2. A ship stern column welding device for ship processing according to claim 1, characterized in that: Two ends of the three-way pipe (8) are respectively connected to the argon storage tank (6) and the helium storage tank (7), and the other end of the three-way pipe (8) is connected to the rear of the mixing box (11), and the front of the mixing box (11) is connected to the plasma arc welder (5) through the air supply pipe.

3. A ship stern column welding device for ship processing according to claim 1, characterized in that: The argon gas release valve (9) is installed at the connection between the argon gas storage tank (6) and the three-way pipe (8), and the helium gas release valve (10) is installed at the connection between the helium gas storage tank (7) and the three-way pipe (8), and both the argon gas release valve (9) and the helium gas release valve (10) are solenoid valves and are electrically connected to the first controller (4).

4. A ship stern column welding device for ship processing according to claim 1, characterized in that: The output shaft of the stepper motor (18) passes through the top of the frame (2) and is coaxially fixedly connected to the top of the ball screw (15) through a coupling. The guide assembly includes two guide vertical shafts (19) symmetrically welded in the frame (2). Two linear bearings (20) are fixedly embedded in the lifting seat (16), and the two linear bearings (20) are movably connected to the two guide vertical shafts (19) respectively.

5. The ship stern column welding device for ship processing according to claim 1, characterized in that: The hydraulic pushing assembly comprises two hydraulic push rods (21) fixedly mounted on the side walls of the support seat (1) and a common sliding seat (22) fixedly connected to the telescopic ends of the two hydraulic push rods (21), and the sliding seat (22) forms a sliding fit with the support seat (1).

6. The ship stern column welding device for ship processing according to claim 1, characterized in that: The output shaft of the servo motor (25) is coaxially fixedly connected to one end of the forward and reverse threaded screw (23), and the two adjustment seats (24) are both slidably connected between the two slide rails (26).

7. The ship stern column welding device for ship processing according to claim 1, characterized in that: The workpiece welding auxiliary rotator comprises a control component, a fixing box (27) fixedly connected to the top outer wall of the adjustment seat (24), two rotating shafts (28) rotatably mounted in the fixing box (27), and two rotating rollers (29) fixedly sleeved on the two rotating shafts (28) in sequence.

8. A ship stern column welding device for ship processing according to claim 7, characterized in that: The control component includes two worm gears (30) fixedly mounted on one end of the two rotating shafts (28), a protective cover (31) fixedly connected to the side wall of the fixed box (27), a driving motor (32) fixedly connected to the front outer wall of the protective cover (31) through a motor support plate, a transmission shaft (33) rotatably mounted in the protective cover (31), and two worm gears (34) fixedly mounted on the transmission shaft (33).

9. A ship stern column welding device for ship processing according to claim 8, characterized in that: The two worms (34) are respectively meshed with the two worm wheels (30) and are both located in the protective cover (31). The spiral directions of the two worms (34) are opposite, and the output shaft of the drive motor (32) is coaxially fixedly connected to one end of the transmission shaft (33) through a coupling.

Images