A valve housing assembly and welding device

Abstract

The present invention relates to the technical field of valve housing assembly and welding, and specifically relates to a valve housing assembly and welding device, which includes a base, and also includes a moving mechanism, a positioning mechanism, a welding mechanism and two side plates. The moving mechanism includes a pushing component, two sliding rails and two telescopic components. The positioning mechanism includes two moving rings, two adjusting components, two clamping components, multiple sliding grooves, multiple sliders, multiple abutting rods and multiple L-shaped positioning blocks. The welding mechanism includes a driving component, two welding heads and two rotating components; the use of multiple abutting blocks on both sides can achieve the positioning of the two pipe orifices of the valve, and the use of multiple L-shaped positioning blocks on both sides can achieve the positioning of the flange. At the same time, since the multiple abutting blocks and multiple L-shaped positioning blocks on the same side are concentric, the valve pipe orifices and the flange to be positioned can be made concentric, which can effectively ensure the accurate alignment of the flange and the pipe orifice, ensure the welding effect and firmness, and avoid the phenomenon of loose connection and poor welding.

Description

Technical Field

[0001] The invention relates to the technical field of valve shell assembly welding, in particular to a valve shell assembly welding device. Background Art

[0002] Valves are control components in fluid delivery systems and have functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief. When processing valves, it is generally necessary to weld and assemble flanges at the two pipe openings of the valve to facilitate subsequent installation of the valve on the pipeline.

[0003] When assembling and welding the valve and flange, the end face of the flange needs to be aligned with the end face of the valve pipe mouth, and then the gap between the flange and the pipe mouth is welded using a welding head. The existing valve housing assembly welding device has the following shortcomings:

[0004] 1. The existing welding device cannot ensure that the flange and the valve nozzle are concentric. If the flange and the valve nozzle are concentric or not, the flange and the nozzle will be offset, resulting in loose welding and virtual connection, which will cause poor sealing effect between the valve nozzle and the flange.

[0005] 2. When assembling the flange and the valve, only one flange can be assembled and welded at a time, and the flanges on both sides cannot be welded synchronously at the same time, resulting in a long time required for the assembly and welding of the valve housing and low welding efficiency.

[0006] In view of the above problems, a valve housing assembly welding device is now provided. Summary of the invention

[0007] The object of the present invention is to provide a valve housing assembly welding device to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A valve housing assembly welding device comprises a base, a moving mechanism, a positioning mechanism, a welding mechanism and two side plates;

[0010] The moving mechanism includes a pushing assembly, two slide rails and two telescopic assemblies. The two slide rails are symmetrically fixed to the top of the base. Each side plate is slidably arranged on the two slide rails. Each telescopic assembly is arranged between one side of the two side plates. The pushing assembly is installed between the base and one of the side plates.

[0011] The positioning mechanism includes two moving rings, two adjusting components, two clamping components, multiple sliding grooves, multiple sliders, multiple pressing rods and multiple L-shaped positioning blocks. The multiple sliding grooves are all formed on the two side plates. Each slider is slidably disposed inside a sliding groove. One end of each pressing rod is fixedly installed on a slider. One end surface of each pressing block away from the slider is fixedly installed on one pressing rod. Each moving ring is slidably disposed on the multiple pressing rods on the same side. The multiple L-shaped positioning blocks are respectively fixed on the two moving rings. Each adjusting component is located between the side plate and a moving ring. Each clamping component is located between the side plate and the multiple sliders on the same side;

[0012] The welding mechanism includes a driving component, two welding heads and two rotating components. Each rotating component is located on one side of the side plate away from the clamping component. Each welding head is detachably disposed on a rotating component. The driving component is installed between the two rotating components.

[0013] As a further solution of the present invention: Each clamping component includes a turntable, a first gear ring, a first gear, a second motor, multiple arc-shaped grooves and multiple insertion rods. The turntable is rotatably disposed on one side of the side plate. The multiple arc-shaped grooves are equidistantly formed on the surface of the turntable. One end of each insertion rod is fixedly installed on one side of the slider away from the pressing rod. The other end of each insertion rod is inserted into the interior of an arc-shaped groove. The first gear ring is fixedly sleeved on the outer side of the turntable. The first gear is located below the first gear ring and rotatably disposed on the surface of the side plate. The second motor is installed on the side plate. The output end of the second motor is fixedly connected to the first gear.

[0014] As a further solution of the present invention: Each adjusting component includes a connecting plate, a threaded sleeve, a threaded rod and a first motor. The connecting plate is fixedly installed on the surface of the moving ring. The threaded sleeve is fixedly installed on the connecting plate. One end of the threaded rod is rotatably disposed on the side plate. The other end of the threaded rod extends into the interior of the threaded sleeve and is in threaded cooperation with the threaded sleeve. The first motor is fixedly installed on the side of the side plate away from the threaded rod. The output end of the first motor is fixedly connected to the end of the threaded rod.

[0015] As a further solution of the present invention: Two strip-shaped grooves are formed on the surface of each pressing rod. One moving block is slidably disposed inside each strip-shaped groove. Each moving block is fixed on the inner wall of the moving ring.

[0016] As a further solution of the present invention: The driving assembly includes a U-shaped frame, a double-shaft motor, two rotating rods, two rotating sleeves, a plurality of limiting grooves and a plurality of limiting blocks. The U-shaped frame is located between the two side plates, and the U-shaped frame is fixedly installed at the top of the base. The double-shaft motor is installed at the top of the U-shaped frame. Two rotating sleeves are respectively fixed to the two output ends of the double-shaft motor. One end of each rotating rod is rotatably arranged on one side of the side plate, and the other end of each rotating rod is inserted into the interior of a rotating sleeve. A plurality of limiting grooves are opened on the inner walls of the two rotating sleeves, and a limiting block is slidably connected to the interior of each limiting groove. Each limiting block is fixed to the surface of a corresponding rotating rod.

[0017] As a further solution of the present invention: Each rotating assembly includes a rotating ring, a second toothed ring and a second gear. The rotating ring is rotatably arranged on one side of the side plate. The second toothed ring is fixedly sleeved on the outer wall of the rotating ring. The second gear is fixedly installed at one end of the rotating rod. The second gear and the second toothed ring are meshed with each other. The welding head is detachably installed on the surface of the rotating ring.

[0018] As a further solution of the present invention: An annular groove is opened on one side of the side plate close to the rotating ring, and the rotating ring is rotatably arranged in the interior of the annular groove through a bearing.

[0019] As a further solution of the present invention: The pushing assembly includes a connecting block and an electric push rod. The connecting block is fixedly installed at the top of one of the side plates, and the connecting block is located between the two slide rails. The electric push rod is fixedly installed at the top of the base and is located between the two slide rails. The output end of the electric push rod is fixedly connected to the connecting block.

[0020] As a further solution of the present invention: Each telescopic assembly includes a vertical plate, a swing rod and two hinge rods. The vertical plate is fixedly installed at the top of the base. The middle of the swing rod is rotatably arranged on the vertical plate. The two ends of the swing rod are respectively hinged to one end of the two hinge rods. The other end of each hinge rod is hinged to the surface of a side plate.

[0021] As a further solution of the present invention: The mounting frame is detachably installed on the rotating ring, and the welding head is detachably installed on the mounting frame.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. For a valve housing assembly welding device of the present invention, a plurality of abutting blocks on both sides can be used to position the two pipe orifices of the valve, and a plurality of L-shaped positioning blocks on both sides can be used to position the flange. At the same time, since the plurality of abutting blocks and the plurality of L-shaped positioning blocks on the same side are concentric, the valve pipe orifices and the flange to be positioned can be made concentric, which can effectively ensure the accurate alignment of the flange and the pipe orifice, ensure the welding effect and firmness, and avoid the phenomenon of loose connection and loose welding.

[0024] 2. A valve housing assembly and welding device of the present invention can adjust the position of the flange after the flange and the valve are positioned by setting an adjustment component, so that the flange can be pushed to one side of the valve pipe orifice and contact the pipe orifice, thereby facilitating subsequent welding of the connection between the pipe orifice and the flange.

[0025] 3. A valve housing assembly and welding device of the present invention can adjust the positions of the two side plates by setting a telescopic component. Initially, the two side plates are far away from each other to facilitate placing the valve. When the two side plates approach each other, multiple abutting blocks on both sides can be inserted into the interior of the pipe orifice, enabling rapid positioning of the valve.

[0026] 4. A valve housing assembly and welding device of the present invention can adjust the positions of multiple abutting rods on the same side by setting a clamping component, so that the multiple abutting rods on the same side can move synchronously, thereby driving the abutting blocks and L-shaped positioning blocks on the abutting rods to move synchronously, facilitating positioning of pipe orifices and flanges with different inner diameters, having a wide range of applications, and meeting the welding requirements of valves with different sizes.

[0027] 5. A valve housing assembly and welding device of the present invention can drive the rotation component to work by setting a rotation component and a driving component, thereby driving the welding head to move in a circular motion along the gap between the flange and the pipe orifice, enabling continuous welding of the gap.

[0028] 6. A valve housing assembly and welding device of the present invention can simultaneously achieve synchronous assembly and welding of the two side pipe orifices by setting abutting blocks, L-shaped positioning blocks, welding heads, etc. on both sides, effectively reducing the relatively long time required for valve housing assembly and welding, and being beneficial to improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the present invention.

[0030] Figure 2 is of the present invention Figure 1 an enlarged schematic structural diagram of part A in the present invention.

[0031] Figure 3 is a front view of the present invention.

[0032] Figure 4 is a schematic cross-sectional structural diagram of the pipe orifice and the flange in the present invention.

[0033] Figure 5 is a schematic structural diagram of the side plate of the present invention.

[0034] Figure 6 is of the present invention Figure 5 an enlarged schematic structural diagram of part B in the present invention.

[0035] Figure 7 This is a schematic structural diagram of the pressing rod and the L-shaped positioning block in the present invention.

[0036] Figure 8 This is a schematic structural diagram of the telescopic assembly in the present invention.

[0037] Figure 9 This is a schematic structural diagram of the pushing assembly in the present invention.

[0038] Figure 10 For the present invention Figure 9 an enlarged schematic structural diagram of part C.

[0039] Wherein: 11, base; 12, slide rail; 13, side plate; 14, vertical plate; 15, swing rod; 16, articulated rod; 17, connecting block; 18, electric push rod; 19, chute; 20, slider; 21, pressing rod; 22, pressing block; 23, strip-shaped groove; 24, moving block; 25, moving ring; 26, L-shaped positioning block; 27, connecting plate; 28, threaded sleeve; 29, threaded rod; 30, first motor; 31, turntable; 32, arc-shaped groove; 33, insertion rod; 34, first toothed ring; 35, first gear; 36, second motor; 37, rotating ring; 38, annular groove; 39, second toothed ring; 40, second gear; 41, rotating rod; 42, rotating sleeve; 43, limiting groove; 44, limiting block; 45, U-shaped frame; 46, dual-axis motor; 47, mounting frame; 48, welding head. Specific embodiments

[0040] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0041] The present invention provides the following preferred embodiments:

[0042] Embodiment 1: As Figures 1 - 10 shown, a valve housing assembly and welding device includes a base 11, and also includes a moving mechanism, a positioning mechanism, a welding mechanism, and two side plates 13;

[0043] The moving mechanism includes a pushing assembly, two slide rails 12, and two telescopic assemblies. The two slide rails 12 are symmetrically fixed to the top of the base 11. Each side plate 13 is slidably disposed on the two slide rails 12. Each telescopic assembly is disposed between one side of the two side plates 13. The pushing assembly is installed between the base 11 and one of the side plates 13;

[0044] The pushing component can drive one of the side plates 13 to move. Under the action of the two telescopic components, the two side plates 13 can move synchronously, and the two side plates 13 approach and move away from each other synchronously. When the two side plates 13 move away from each other, it is convenient to place the valve between the two side plates 13. When the two side plates 13 approach each other, it is convenient to position the valve.

[0045] The positioning mechanism includes two moving rings 25, two adjusting components, two clamping components, multiple sliding grooves 19, multiple sliding blocks 20, multiple abutting rods 21 and multiple L-shaped positioning blocks 26. The multiple sliding grooves 19 are all formed in the two side plates 13. Each sliding block 20 is slidably arranged inside a sliding groove 19. Each abutting rod 21 is fixedly installed at one end of a sliding block 20. Each abutting block 22 is fixedly installed on the surface of one abutting rod 21 away from the sliding block 20. Each moving ring 25 is slidably arranged on the multiple abutting rods 21 on the same side. The multiple L-shaped positioning blocks 26 are respectively fixed on the two moving rings 25. Each adjusting component is located between the side plate 13 and a moving ring 25. Each clamping component is located between the side plate 13 and the multiple sliding blocks 20 on the same side.

[0046] The clamping component can drive the sliding blocks 20 on the same side to slide synchronously inside the sliding grooves 19, so that the multiple abutting rods 21 on the same side can slide synchronously. When the abutting rods 21 and the abutting blocks 22 on the abutting rods 21 extend into the valve pipe orifice, the multiple abutting blocks 22 on the same side can be used to position the pipe orifice. The multiple L-shaped positioning blocks 26 on the same side can be used to position the flange. Therefore, the valve pipe orifice and the flange to be positioned can be made concentric, effectively ensuring the accurate alignment of the flange and the pipe orifice, ensuring the welding effect and firmness, and avoiding the phenomenon of loose connection and loose welding.

[0047] The welding mechanism includes a driving component, two welding heads 48 and two rotating components. Each rotating component is located on the side of one side plate 13 away from the clamping component. Each welding head 48 is detachably arranged on a rotating component. The driving component is installed between the two rotating components.

[0048] The driving component can drive the rotating components on both sides to work, so as to drive the welding heads 48 on the two rotating components to rotate. The two welding heads 48 can be used to synchronously weld both sides of the valve, effectively reducing the long time required for the assembly and welding of the valve shell, and being beneficial to improving the welding efficiency.

[0049] At the same time, the rotating component can drive the welding head 48 to move annularly, and can realize continuous welding of the gap.

[0050] Such as Figures 1 - 10As shown, each clamping component includes a turntable 31, a first gear ring 34, a first gear 35, a second motor 36, a plurality of arc-shaped grooves 32 and a plurality of insertion rods 33. The turntable 31 is rotatably arranged on one side of the side plate 13. The plurality of arc-shaped grooves 32 are equidistantly arranged on the surface of the turntable 31. Each insertion rod 33 is fixedly installed on the side of a slider 20 away from the abutting rod 21. The other end of each insertion rod 33 is inserted into the interior of an arc-shaped groove 32. The first gear ring 34 is fixedly sleeved on the outer side of the turntable 31. The first gear 35 is located below the first gear ring 34 and is rotatably arranged on the surface of the side plate 13. The second motor 36 is installed on the side plate 13. The output end of the second motor 36 is fixedly connected to the first gear 35;

[0051] When it is necessary to position the flange and the pipe orifice, first, the flange is sleeved on the plurality of L-shaped positioning blocks 26 on the same side. Subsequently, the side plate 13 is moved to move the plurality of abutting blocks 22 on the same side into the interior of a pipe orifice. The second motor 36 is controlled to work. The second motor 36 can drive the first gear 35 to rotate. Since the first gear 35 and the first gear ring 34 mesh with each other, when the first gear 35 rotates, it can drive the first gear ring 34 to rotate, so that the turntable 31 can rotate. When the turntable 31 rotates, it drives the arc-shaped grooves 32 to rotate. Under the action of the insertion rods 33, the slider 20 can be driven to slide inside the sliding groove 19, so that the abutting rod 21, the abutting block 22 and the L-shaped positioning block 26 can be driven to move, realizing the abutting of the pipe orifice and the flange;

[0052] Meanwhile, it is also convenient to position pipe orifices and flanges with different inner diameters, with a wide application range, meeting the welding requirements of valves with different sizes.

[0053] As Figures 1 - 10 shown, each adjusting component includes a connecting plate 27, a threaded sleeve 28, a threaded rod 29 and a first motor 30. The connecting plate 27 is fixedly installed on the surface of the moving ring 25. The threaded sleeve 28 is fixedly installed on the connecting plate 27. One end of the threaded rod 29 is rotatably arranged on the side plate 13. The other end of the threaded rod 29 extends into the threaded sleeve 28 and is in threaded cooperation with the threaded sleeve 28. The first motor 30 is fixedly installed on the side of the side plate 13 away from the threaded rod 29. The output end of the first motor 30 is fixedly connected to the end of the threaded rod 29;

[0054] After the positioning of the flange and the valve nozzle is completed, control the first motor 30 to work. The first motor 30 can drive the threaded rod 29 to rotate. Since there is a threaded fit between the threaded rod 29 and the threaded sleeve 28, and the moving ring 25 slides on multiple abutting rods 21, when the threaded rod 29 rotates, it can drive the threaded sleeve 28 to move, so that the moving ring 25 can slide on multiple abutting rods 21, thereby driving the L-shaped positioning block 26 and the flange positioned on the L-shaped positioning block 26 to move, so that the flange can be pushed to one side of the valve nozzle and contact the nozzle, so as to facilitate subsequent welding of the connection between the nozzle and the flange.

[0055] As Figures 1 - 10 shown, two strip-shaped grooves 23 are formed on the surface of each abutting rod 21, and a moving block 24 slides in each strip-shaped groove 23. Each moving block 24 is fixed to the inner wall of the moving ring 25. By using the sliding connection between the strip-shaped groove 23 and the moving block 24, it can provide a guiding function for the movement of the moving ring 25 and ensure the stability of the moving ring 25 during movement.

[0056] As Figures 1 - 10 shown, the driving assembly includes a U-shaped frame 45, a double-shaft motor 46, two rotating rods 41, two rotating sleeves 42, a plurality of limiting grooves 43 and a plurality of limiting blocks 44. The U-shaped frame 45 is located between the two side plates 13. The U-shaped frame 45 is fixedly installed at the top of the base 11. The double-shaft motor 46 is installed at the top of the U-shaped frame 45. Two rotating sleeves 42 are respectively fixed to the two output ends of the double-shaft motor 46. One end of each rotating rod 41 is rotatably arranged on one side of the side plate 13, and the other end of each rotating rod 41 is inserted into the inside of a rotating sleeve 42. A plurality of limiting grooves 43 are formed on the inner walls of the two rotating sleeves 42, and a limiting block 44 is slidably connected in each limiting groove 43. Each limiting block 44 is fixed to the surface of a corresponding rotating rod 41;

[0057] When welding is required, first, the welding head 48 needs to be installed and fixed, and then control the double-shaft motor 46 to work at any time. The double-shaft motor 46 can drive the two rotating sleeves 42 to rotate. Due to the limitation of the limiting groove 43 and the limiting block 44, when the rotating sleeve 42 rotates, it can drive the rotating rods 41 on both sides to rotate;

[0058] At the same time, since the limiting groove 43 and the limiting block 44 are slidably connected, when the two side plates 13 move, the rotating rod 41 can slide inside the rotating sleeve 42 without affecting the mutual approach and separation of the two side plates 13.

[0059] As Figures 1 - 10As shown, each rotating component includes a rotating ring 37, a second gear ring 39 and a second gear 40. The rotating ring 37 is rotatably arranged on one side of the side plate 13. The second gear ring 39 is fixedly sleeved on the outer wall of the rotating ring 37. The second gear 40 is fixedly installed at one end of the rotating rod 41. The second gear 40 meshes with the second gear ring 39. The welding head 48 is detachably installed on the surface of the rotating ring 37;

[0060] When the rotating rod 41 rotates, it can drive the second gear 40 to rotate. Since the second gear 40 meshes with the second gear ring 39, when the second gear 40 rotates, it can drive the second gear ring 39 to rotate, so that the rotating ring 37 can rotate, and then drive the welding head 48 installed on the rotating ring 37 to rotate.

[0061] As Figures 1 - 10 shown, an annular groove 38 is formed on one side of the side plate 13 close to the rotating ring 37. The rotating ring 37 is rotatably arranged inside the annular groove 38 through a bearing. By providing the annular groove 38, it can play a guiding role for the rotating ring 37 and ensure the stability of the rotating ring 37 during rotation.

[0062] As Figures 1 - 10 shown, the pushing component includes a connecting block 17 and an electric push rod 18. The connecting block 17 is fixedly installed at the top of one of the side plates 13, and the connecting block 17 is located between the two slide rails 12. The electric push rod 18 is fixedly installed at the top of the base 11 and is located between the two slide rails 12. The output end of the electric push rod 18 is fixedly connected to the connecting block 17;

[0063] When it is necessary to move the side plate 13, control the electric push rod 18 to work. The electric push rod 18 can drive the connecting block 17 to move, so that the connecting block 17 can drive the side plate 13 connected to the connecting block 17 to slide on the two slide rails 12.

[0064] As Figures 1 - 10 shown, each telescopic component includes a vertical plate 14, a swing rod 15 and two hinge rods 16. The vertical plate 14 is fixedly installed at the top of the base 11. The middle of the swing rod 15 is rotatably arranged on the vertical plate 14. The two ends of the swing rod 15 are respectively hinged to one end of the two hinge rods 16. The other end of each hinge rod 16 is hinged to the surface of a side plate 13;

[0065] When one side plate 13 rotates, under the action of the swing rod 15 and the two hinge rods 16, it can drive the other side plate 13 to move in the opposite direction, so that the two side plates 13 can approach and move away from each other, which is convenient for installing and disassembling the valve.

[0066] As Figures 1 - 10As shown, the mounting bracket 47 is detachably mounted on the swivel ring 37, and the welding head 48 is detachably mounted on the mounting bracket 47, facilitating the disassembly of the mounting bracket 47 and the welding head 48, thus facilitating the installation of the flange. At the same time, the welding head 48 is detachably arranged on the mounting bracket 47, which also facilitates the subsequent maintenance of the welding head 48.

[0067] The specific working process of the present invention is as follows:

[0068] First, control the electric push rod 18 to work. The electric push rod 18 can drive the connecting block 17 to move, so that the connecting block 17 can drive the side plate 13 connected to the connecting block 17 to slide on the two slide rails 12. When one side plate 13 rotates, under the action of the swing rod 15 and the two hinge rods 16, it can drive the other side plate 13 to move in the opposite direction, so that the two side plates 13 can move away from each other. At this time, the two flanges are sleeved on the multiple L-shaped positioning blocks 26 on both sides. Subsequently, place the valve between the two side plates 13, and use the same method to control the two side plates 13 to move away from each other, so that the multiple tightening blocks 22 on both sides can extend into the inside of the pipe orifice.

[0069] Subsequently, control the second motor 36 to work. The second motor 36 can drive the first gear 35 to rotate. Since the first gear 35 and the first toothed ring 34 are meshed with each other, when the first gear 35 rotates, it can drive the first toothed ring 34 to rotate, so that the turntable 31 can rotate. When the turntable 31 rotates, it drives the arc groove 32 to rotate. Under the action of the insertion rod 33, it can drive the slider 20 to slide inside the chute 19, so as to drive the tightening rod 21, the tightening block 22 and the L-shaped positioning block 26 to move, realizing the tightening of the pipe orifice and the flange. After the positioning of the flange and the valve pipe orifice is completed, control the first motor 30 to work. The first motor 30 can drive the threaded rod 29 to rotate. Since the threaded rod 29 and the threaded sleeve 28 are in threaded cooperation, and the moving ring 25 slides on the multiple tightening rods 21, when the threaded rod 29 rotates, it can drive the threaded sleeve 28 to move, so that the moving ring 25 can slide on the multiple tightening rods 21, so as to drive the L-shaped positioning block 26 and the flange positioned on the L-shaped positioning block 26 to move, so that the flange can be pushed to one side of the valve pipe orifice and contact the pipe orifice, so as to facilitate the subsequent welding of the connection between the pipe orifice and the flange.

[0070] Finally, the welding head 48 is installed on the mounting bracket 47, and the mounting bracket 47 is installed on the swivel ring 37. Control the operation of the dual-axis motor 46. The dual-axis motor 46 can drive the two rotating sleeves 42 to rotate. Due to the limitation of the limiting groove 43 and the limiting block 44, when the rotating sleeve 42 rotates, it can drive the rotating rods 41 on both sides to rotate. When the rotating rod 41 rotates, it can drive the second gear 40 to rotate. Since the second gear 40 and the second toothed ring 39 mesh with each other, when the second gear 40 rotates, it can drive the second toothed ring 39 to rotate, so that the swivel ring 37 can rotate, and thus can drive the welding head 48 installed on the swivel ring 37 to rotate, and can drive the welding head 48 to move in a circular motion along the gap between the flange and the pipe orifice, and can realize continuous welding of the gap.

[0071] The beneficial effects of the present invention are specifically embodied as follows. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A valve housing assembly welding device, comprising a base (11), characterized in that: It also includes a moving mechanism, a positioning mechanism, a welding mechanism and two side plates (13); The moving mechanism comprises a pushing assembly, two slide rails (12) and two telescopic assemblies, the two slide rails (12) are symmetrically fixed on the top of the base (11), each side plate (13) is slidably arranged on the two slide rails (12), each telescopic assembly is arranged between one side of the two side plates (13), and the pushing assembly is installed between the base (11) and one of the side plates (13); The positioning mechanism comprises two movable rings (25), two adjustment components, two clamping components, a plurality of slide grooves (19), a plurality of sliders (20), a plurality of abutting rods (21) and a plurality of L-shaped positioning blocks (26), wherein the plurality of slide grooves (19) are all provided on the two side plates (13), each slider (20) is slidably arranged inside a slide groove (19), each abutting rod (21) is fixedly mounted on one end of a slider (20), each abutting block (22) is fixedly mounted on an end surface of abutting rod (21) away from the slider (20), each movable ring (25) is slidably arranged on a plurality of abutting rods (21) located on the same side, a plurality of L-shaped positioning blocks (26) are respectively fixed on the two movable rings (25), each adjustment component is located between the side plate (13) and a movable ring (25), and each clamping component is located between the side plate (13) and a plurality of sliders (20) on the same side; The welding mechanism comprises a driving assembly, two welding heads (48) and two rotating assemblies, each rotating assembly is located on a side of a side plate (13) away from the clamping assembly, each welding head (48) is detachably arranged on a rotating assembly, and the driving assembly is installed between the two rotating assemblies; Each adjustment assembly comprises a connecting plate (27), a threaded sleeve (28), a threaded rod (29) and a first motor (30); the connecting plate (27) is fixedly mounted on the surface of the moving ring (25); the threaded sleeve (28) is fixedly mounted on the connecting plate (27); one end of the threaded rod (29) is rotatably mounted on the side plate (13); the other end of the threaded rod (29) extends into the interior of the threaded sleeve (28) and is threadably engaged with the threaded sleeve (28); the first motor (30) is fixedly mounted on a side of the side plate (13) away from the threaded rod (29); and an output end of the first motor (30) is fixedly connected to an end of the threaded rod (29); Two strip grooves (23) are formed on the surface of each abutting rod (21), a moving block (24) is slidably disposed inside each strip groove (23), and each moving block (24) is fixed to the inner wall of the moving ring (25).

2. A valve housing assembly welding device according to claim 1, characterized in that: Each clamping assembly comprises a rotating disk (31), a first gear ring (34), a first gear (35), a second motor (36), a plurality of arc grooves (32) and a plurality of insertion rods (33); the rotating disk (31) is rotatably arranged on one side of the side plate (13); the plurality of arc grooves (32) are equidistantly arranged on the surface of the rotating disk (31); each insertion rod (33) is fixedly mounted on a side of a slider (20) away from the abutting rod (21); the other end of each insertion rod (33) is inserted into an arc groove (32); the first gear ring (34) is fixedly sleeved on the outer side of the rotating disk (31); the first gear (35) is located below the first gear ring (34) and is rotatably arranged on the surface of the side plate (13); the second motor (36) is mounted on the side plate (13); and the output end of the second motor (36) is fixedly connected to the first gear (35).

3. A valve housing assembly welding device according to claim 2, characterized in that: The driving assembly comprises a U-shaped frame (45), a double-axis motor (46), two rotating rods (41), two rotating sleeves (42), a plurality of limiting grooves (43) and a plurality of limiting blocks (44); the U-shaped frame (45) is located between the two side plates (13); the U-shaped frame (45) is fixedly mounted on the top of the base (11); the double-axis motor (46) is mounted on the top of the U-shaped frame (45); the two rotating sleeves (42) are respectively fixed on two output ends of the double-axis motor (46); one end of each rotating rod (41) is rotatably arranged on one side of the side plate (13); the other end of each rotating rod (41) is plugged into the interior of a rotating sleeve (42); the plurality of limiting grooves (43) are arranged on the inner walls of the two rotating sleeves (42); the interior of each limiting groove (43) is slidably connected to a limiting block (44); and each limiting block (44) is fixed on the surface of a corresponding rotating rod (41).

4. A valve housing assembly welding device according to claim 3, characterized in that: Each rotating assembly comprises a rotating ring (37), a second gear ring (39) and a second gear (40); the rotating ring (37) is rotatably arranged on one side of the side plate (13); the second gear ring (39) is fixedly sleeved on the outer wall of the rotating ring (37); the second gear (40) is fixedly mounted on one end of a rotating rod (41); the second gear (40) and the second gear ring (39) are meshed with each other; and the welding head (48) is detachably mounted on the surface of the rotating ring (37).

5. A valve housing assembly welding device according to claim 4, characterized in that: An annular groove (38) is formed on one side of the side plate (13) close to the rotating ring (37), and the rotating ring (37) is rotatably arranged inside the annular groove (38) via a bearing.

6. A valve housing assembly welding device according to claim 5, characterized in that: The pushing assembly comprises a connecting block (17) and an electric push rod (18); the connecting block (17) is fixedly mounted on the top end of one of the side plates (13), and the connecting block (17) is located between the two slide rails (12); the electric push rod (18) is fixedly mounted on the top end of the base (11) and is located between the two slide rails (12); and the output end of the electric push rod (18) is fixedly connected to the connecting block (17).

7. A valve housing assembly welding device according to claim 6, characterized in that: Each telescopic assembly comprises a vertical plate (14), a swing rod (15) and two hinged rods (16); the vertical plate (14) is fixedly mounted on the top of the base (11); the middle part of the swing rod (15) is rotatably mounted on the vertical plate (14); the two ends of the swing rod (15) are respectively hinged to one end of the two hinged rods (16); and the other end of each hinged rod (16) is hinged to the surface of a side plate (13).

8. A valve housing assembly welding device according to claim 7, characterized in that: The mounting frame (47) is detachably mounted on the rotating ring (37), and the welding head (48) is detachably mounted on the mounting frame (47).

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