A pair splicing device for welding pressure vessel cylinder

Abstract

The present invention discloses a pairing and splicing device for welding pressure vessel cylinders, which belongs to the technical field of pressure vessel production. The device comprises a workbench, wherein two symmetrically distributed moving tables are installed on the upper end of the workbench, an X-axis moving assembly is movably installed between the moving table on one side and the workbench, a supporting assembly is provided on the upper end of the moving table, and a centering assembly is installed on the side end of the moving table. The pressure vessel cylinder is centered and clamped by driving the centering assembly to ensure that the center points and sides of the two pressure vessel cylinders are in a horizontal plane, and then the cleaning assembly is driven to mechanically clean the positions of the pressure vessel cylinders required for welding to remove impurities such as oxide scale, rust, and coating on the surfaces of the pressure vessel cylinders at the welding positions. Finally, personnel drive the supporting assembly to rotate to rotate the two pressure vessel cylinders required for welding, and realize the welding of the pressure vessel cylinders under the action of the welding head.

Description

Technical Field

[0001] The invention relates to the technical field of pressure vessel production, and more specifically to a pair-joining device for welding a pressure vessel cylinder. Background Art

[0002] A pressure vessel is a sealed container that can withstand pressure. Pressure vessels are widely used and play an important role in many sectors such as industry, civil, military, and many fields of scientific research. Pressure vessels are generally cylindrical. Since pressure vessels need to withstand a certain pressure, the cylinder of the pressure vessel must ensure its sealing performance.

[0003] At present, the known pressure vessel cylinder assembly method is to use wedges, jacks, etc. to mechanically butt weld the cylinder point by point. This method has many disadvantages. For example, it mainly relies on manual welding of the cylinder assembly tool (wedge) to perform assembly welding, which is difficult, inefficient, costly, and unsafe. Therefore, the present invention proposes an assembly and splicing device for pressure vessel cylinder welding. Summary of the invention

[0004] 1. Technical problems to be solved:

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a pairing and splicing equipment for welding pressure vessel cylinders, which can center and clamp the pressure vessel cylinders by driving the centering component to ensure that the center points and sides of the two pressure vessel cylinders are in the horizontal plane at this time, and then drive the cleaning component to promote mechanical cleaning of the positions of the pressure vessel cylinders required for welding to remove impurities such as oxide scale, rust, coating, etc. on the surface of the pressure vessel cylinder welding positions. Finally, the personnel drive the support component to rotate, thereby promoting the rotation of the two pressure vessel cylinders required for welding, and under the action of the welding head, the welding of the pressure vessel cylinders is realized.

[0006] 2. Technical solution:

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A pair splicing device for welding a pressure vessel cylinder comprises a workbench, two symmetrically distributed moving tables are installed on the upper end of the workbench, an X-axis moving assembly is movably installed between the moving table and the workbench on one side, a supporting assembly is provided on the upper end of the moving table, a centering assembly is installed on the side end of the moving table, and a welding cover is fixedly connected to the outer end of the centering assembly on one side, wherein:

[0009] A welding head is installed on one inner wall of the welding cover, a driving component electrically connected to the welding head is installed on the top of the welding cover, and a cleaning component is installed on the other inner wall of the welding cover.

[0010] A further improvement is that the X-axis moving component includes a slide groove opened at the upper center end of the workbench, a threaded rod 1 is installed between the left and right inner walls of the slide groove, a motor 2 is installed at the right end of the threaded rod 1, and a sliding sleeve is threadedly connected to the outer end of the threaded rod 1, and the top of the sliding sleeve is fixedly connected to the bottom of one side of the moving platform.

[0011] A further improvement is that the support assembly includes two support seats 1 fixedly connected to the upper end of one side of the moving platform, a positioning seat 1 fixedly connected between the inner walls of the support seat 1, two rubber wheels 1 rotatably connected between the inner walls of the positioning seat 1, two support seats 2 fixedly connected to the upper end of the other side of the moving platform, a positioning seat 2 installed between the inner walls of the support seat 2, two rubber wheels rotatably connected between the inner walls of the positioning seat 2, a transmission assembly is provided between the positioning seat 2 and the upper end of the moving platform, and a position fine-tuning assembly is installed at the upper center end of the moving platform.

[0012] A further improvement is that: the transmission assembly includes a motor 3 installed on the upper end of one side of the moving platform, and a plurality of reducers are installed on the upper end of the other side of the moving platform, wherein the reducer on one side is fixedly connected to the output end of the motor 3, the transmission shafts of the two reducers penetrate into the interior of the positioning seat 2, and transmission rods are installed between the plurality of reducers;

[0013] Two transmission gears 1 are rotatably connected to the inner wall of one side of the positioning seat 2, and the transmission gears 1 are respectively fixedly connected to the transmission shaft of the rubber wheel 2. A transmission gear 2 is rotatably connected to the inner wall of the bottom side of the positioning seat 2, and the transmission gear 2 is fixedly connected to the transmission shaft through the reducer, and a transmission gear 3 is meshedly connected between the transmission gear 2 and the inner walls of the two transmission gears 1.

[0014] A further improvement is that the position fine-tuning component includes a hydraulic rod installed on the upper center end of the moving platform, the upper end of the hydraulic rod is fixedly connected to a carrying tray, a plurality of symmetrically distributed rubber pads are fixedly connected to the inner wall of the carrying tray, a plurality of evenly distributed spherical grooves are opened on the bottom wall of the carrying tray, and balls are rotatably connected between the inner walls of the spherical grooves.

[0015] A further improvement is that the centering component includes a mounting plate fixedly connected to the side end of the moving platform, a centering frame fixedly connected to the inner wall of the mounting plate, a plurality of movable sleeves movably connected between the inner walls of the centering frame, a connecting rod fixedly connected between the inner walls of the movable sleeves, one end of the connecting rod is rotatably connected to the inner wall of the mounting plate, a roller is rotatably connected between the inner walls at the other end of the connecting rod, a connecting block is fixedly connected to one side of the centering frame, a pedestal is fixedly connected to the inner wall of the mounting plate, the outer ends of the connecting block and the pedestal are rotatably connected to threaded blocks, a threaded rod 2 is installed through the inner walls of the two threaded blocks, and a motor 4 is installed at the other end of the threaded rod 2.

[0016] A further improvement is that the cleaning assembly includes an electric push rod installed on the inner wall of one side of the welding cover, one end of the electric push rod is electrically connected to a motor installed on the welding cover, the bottom end of the electric push rod is fixedly connected to a connecting plate, a T-shaped grinding sheet is installed at the lower end of the connecting plate, a cleaning brush assembly is provided at one side end of the connecting plate, and a levelness monitoring assembly is installed at the other side end of the connecting plate.

[0017] A further improvement is that the cleaning brush assembly includes a fan group installed on one side of the connecting plate, a connecting box 1 is fixedly connected to the side end of the fan group, a brush is installed at the bottom end of one side of the connecting box 1, an air inlet is fixedly connected to the bottom end of the other side of the connecting box 1, a pipe 1 is embedded and installed between the fan group and the connecting box 1, a pipe 2 is embedded and installed at the upper end of the fan group, and the fan group and the connecting box 1 are both hollow.

[0018] A further improvement is that the level monitoring assembly includes a second connection box fixedly connected to the center end of the other side of the connection plate, and infrared level meters are installed on the left and right side walls of the second connection box, and the infrared level meters are located between the gaps when the two cylinders are welded.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0021] In the present invention, by driving the second motor, the threaded rod 1 is caused to rotate in linkage, and then the sliding sleeve and the moving platform connected by threads on the surface thereof are caused to move in a linear direction, so that the cylinder of the pressure vessel carried by the support assembly is moved to the welding position, so as to achieve more efficient assembly and splicing;

[0022] In the present invention, the driving motor 3 is operated so that the multiple reducers reduce the transmission rate of the rotation under the transmission of the transmission rod, and when the transmission rods of two transmission components that penetrate into the interior of the positioning seat 2 rotate, they synchronously drive the transmission gear 2 to rotate, and the transmission gear 1 and the transmission gear 2 are meshed and connected through the transmission gear 3. When the transmission gear 2 rotates, the transmission gear 1 synchronously rotates in the same direction, so that the pressure vessel cylinder between the rubber wheel 2 can be driven to rotate under the friction force, so as to facilitate the cleaning and welding work of the subsequent welding position;

[0023] In the present invention, the hydraulic rod is driven to drive the carrying tray to move upward, so that the cylinder of the pressure vessel is separated from the top of the second rubber wheel and the first rubber wheel. At this time, the cylinder of the pressure vessel has a local force limit under the friction of the rubber pad to prevent the range of movement from being too large. Under the action of the ball, its bottom can greatly reduce the friction between the carrying tray, making it convenient for personnel to push the cylinder of the pressure vessel in the front and back directions, so that the personnel can push one side of the cylinder of the pressure vessel to the inner wall of the centering assembly for clamping and positioning;

[0024] In the present invention, the threaded rod 2 is driven by the driving motor 4, and then the threaded block on the upper side of the connecting block is driven to move away under the threaded transmission, and under the connection of the connecting block and the pedestal, the centering frame is passively rotated clockwise, and because one end of the connecting rod is rotationally connected with the inner wall of the mounting plate, the center end is rotationally connected with the inner wall of the centering frame, so that when the centering frame rotates clockwise, the connecting rod rotates counterclockwise, so that multiple rollers are clamped on the outer wall of the pressure vessel cylinder, and the pressure vessel cylinders on both sides are guaranteed to be on the same horizontal plane;

[0025] In the present invention, after the roller centers and limits the cylinder of the pressure vessel, when the cylinder of the pressure vessel needs to be rotated to clean the welding position or for subsequent welding, the cylinder of the pressure vessel can be rotated under the action of the roller, so that the cylinder of the pressure vessel can be limited by the centering position and can rotate under positioning, which is not easy to affect the subsequent process operation, and greatly improves the efficiency of the pressure vessel cylinder welding;

[0026] In the present invention, when the pressure vessel cylinders on both sides are assembled and spliced, and a welding seam is left between the two, the personnel drives the electric push rod to cause the connecting plate to move downward synchronously with the grinding sheet, so that the vertical end of the grinding sheet is located between the welding seams, and the horizontal end is attached to the outer wall of the welding position of the pressure vessel cylinder. Then, as the pressure vessel cylinder rotates continuously, the grinding sheet is enabled to grind around the welding position of the pressure vessel cylinder, remove impurities such as scale, rust, and coating on the surface of the welding position of the pressure vessel cylinder, and avoid impurities and pollutants on the surface of the subsequent weldment affecting the welding quality, resulting in defects such as reduced weld strength, pores, and slag inclusions; at the same time, it also avoids splashing during welding caused by impurities and pollutants, and even welding accidents, thereby greatly improving the quality and safety of the subsequent pressure vessel cylinder welding;

[0027] During the grinding of the pressure vessel cylinder of the present invention, the cleaning and brushing assembly simultaneously performs a detailed treatment on the welding position after grinding, and can absorb and collect the dust and impurities generated during the grinding of the pressure vessel cylinder, and clean the grinding welding position, further ensuring the cleanliness of the welding position of the pressure vessel cylinder, and improving the quality and safety of the subsequent pressure vessel cylinder welding;

[0028] Before the grinding work, the horizontality monitoring component of the present invention once again detects the position of the pressure vessel cylinders after the two pressure vessel cylinders are assembled and spliced, so as to ensure the accurate assembly position of the pressure vessel cylinders, improve the quality and safety after welding, avoid the phenomenon of rework after welding, and strengthen the quality inspection work;

[0029] In the present invention, when the welding head is welding, its welding cover can also block the brightness of the flame generated during welding to prevent outsiders from getting hurt when observing, and the side wall of the welding cover can also block the sparks during welding to prevent outsiders from getting burned by sparks, thereby greatly ensuring the safety of the subsequent welding of the pressure vessel cylinder.

[0030] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the X-axis moving assembly of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the support assembly of the present invention;

[0034] Figure 4This is a schematic diagram of the structure inside the second positioning seat of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the position fine-tuning assembly of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the centering component of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of a part of the welding cover of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the cleaning and brushing assembly of the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of the levelness monitoring component of the present invention.

[0040] Description of the numbers in the figure:

[0041] 1. Workbench; 2. Mobile table;

[0042] 3. X-axis moving assembly; 31. slideway; 32. threaded rod 1; 33. motor 2;

[0043] 4. Support assembly; 41. Support seat 1; 42. Positioning seat 1; 43. Rubber wheel 1; 44. Support seat 2; 45. Positioning seat 2; 46. Rubber wheel 2;

[0044] 47, transmission assembly; 471, motor three; 472, reducer; 473, transmission rod; 474, transmission gear one; 475, transmission gear two; 476, transmission gear three;

[0045] 48. Position fine-tuning assembly; 481. Hydraulic rod; 482. Loading tray; 483. Rubber pad; 484. Ball;

[0046] 5. Centering assembly; 51. Mounting plate; 52. Centering frame; 53. Movable sleeve; 54. Connecting rod; 55. Roller; 56. Connecting block; 57. Base; 58. Threaded block; 59. Threaded rod 2; 510. Motor 4;

[0047] 6. welding cover; 61. welding head; 62. driving member;

[0048] 7. Cleaning assembly; 71. Electric push rod; 72. Connecting plate; 73. Grinding sheet;

[0049] 741, fan unit; 742, connection box 1; 743, air inlet; 744, pipe 1; 745, brush; 746, pipe 2;

[0050] 751. Connection box 2; 752. Infrared level. DETAILED DESCRIPTION

[0051] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] See also Figure 1-9 A pair splicing device for welding a pressure vessel cylinder comprises a workbench 1, two symmetrically distributed moving tables 2 are installed on the upper end of the workbench 1, an X-axis moving assembly 3 is movably installed between the moving table 2 and the workbench 1 on one side, a supporting assembly 4 is provided on the upper end of the moving table 2, a centering assembly 5 is installed on the side end of the moving table 2, and a welding cover 6 is fixedly connected to the outer end of the centering assembly 5 on one side, wherein,

[0056] A welding head 61 is installed on one inner wall of the welding cover 6 , a driving member 62 electrically connected to the welding head 61 is installed on the top of the welding cover 6 , and a cleaning assembly 7 is installed on the other inner wall of the welding cover 6 .

[0057] During the use of this solution, in order to avoid the slow efficiency of the existing pressure vessel cylinder assembly and splicing during welding work and the possible errors in the assembly and splicing that may cause hidden dangers in subsequent welded parts, in this embodiment, the personnel can first place the two pressure vessel cylinders to be welded on the surface respectively, and then, under the lifting of the position fine-tuning component 48, the personnel can easily push one side of the pressure vessel cylinder to between the inner walls of the centering component 5, and then the position fine-tuning component 48 will be retracted again to place the pressure vessel cylinder above the support component 4, and the centering component 5 will be driven to center and clamp the pressure vessel cylinder to ensure that the center points and sides of the two pressure vessel cylinders are in the horizontal plane at this time, and then the X-axis moving component 3 will be driven to push the pressure vessel cylinder on one side to the welding The inner walls of the receiving cover 6 are moved closer until the two pressure vessel cylinders are moved to a suitable welding position. By driving the cleaning assembly 7, the mechanical cleaning work is performed on the position of the pressure vessel cylinder required for welding, and the oxide scale, rust, coating and other impurities on the surface of the pressure vessel cylinder welding position are removed, so as to avoid the impurities and pollutants on the surface of the subsequent weldment affecting the welding quality, causing defects such as reduced weld strength, pores, slag inclusions, etc.; at the same time, it also avoids splashing during welding caused by impurities and pollutants, and even causes welding accidents, greatly improving the quality and safety of the subsequent pressure vessel cylinder welding. Finally, the personnel drives the support assembly 4 to rotate, so as to rotate the two pressure vessel cylinders required for welding, and realizes the welding work of the pressure vessel cylinder under the action of the welding head 61;

[0058] In this embodiment, when the welding head 61 is welding, its welding cover 6 can also block the brightness of the flame generated during welding to prevent outsiders from getting hurt when observing, and the side wall of the welding cover 6 can also block the sparks during welding to prevent outsiders from getting burned by sparks, thereby greatly ensuring the safety of the subsequent welding of the pressure vessel cylinder.

[0059] See also Figure 1-2 The X-axis moving component 3 includes a slide groove 31 opened at the upper center end of the workbench 1, a threaded rod 32 is installed between the left and right inner walls of the slide groove 31, a motor 2 33 is installed at the right end of the threaded rod 32, and a sliding sleeve is threadedly connected to the outer end of the threaded rod 32, and the top of the sliding sleeve is fixedly connected to the bottom of the moving platform 2 on one side.

[0060] During use of the present solution, in order to enable the existing pressure vessel cylinder to be assembled and spliced ​​more quickly, the personnel can drive the motor 2 33 to cause the threaded rod 1 32 to rotate in conjunction, and then cause the sleeve and the movable table 2 threadedly connected on the surface to move in a linear direction, so as to cause the pressure vessel cylinder carried by the support assembly 4 to move to the welding position, so as to achieve more efficient assembly and splicing.

[0061] See also Figure 1-3 The support assembly 4 includes two support seats 41 fixedly connected to the upper end of one side of the moving platform 2, a positioning seat 42 is fixedly connected between the inner walls of the support seat 41, and two rubber wheels 43 are rotatably connected between the inner walls of the positioning seat 42. Two support seats 44 are fixedly connected to the upper end of the other side of the moving platform 2, a positioning seat 45 is installed between the inner walls of the support seats 44, and a rubber wheel 46 is rotatably connected between the inner walls of the positioning seats 45. A transmission assembly 47 is provided between the positioning seat 45 and the upper end of the moving platform 2, and a position fine-tuning assembly 48 is installed at the upper center end of the moving platform 2.

[0062] During use of the present solution, personnel can place the pressure vessel cylinder between the inner wall supported by the positioning seat 2 45 and the positioning seat 1 42. When personnel need to drive the pressure vessel cylinder to rotate to clean impurities or perform welding work, they can drive the transmission component 47 to cause the rubber wheel 2 46 to rotate, and drive the pressure vessel cylinder carried by the pressure vessel cylinder to rotate under the linkage of the rubber wheel 1 43. During this period, if personnel need to fine-tune the position of the pressure vessel cylinder in the front-to-back direction, they can drive the position fine-tuning component 48 to rise so that they can push the pressure vessel cylinder in the front-to-back direction, thereby achieving position adjustment in the front-to-back direction.

[0063] See also Figure 2-4 The transmission assembly 47 includes a motor 3 471 installed on the upper end of one side of the moving platform 2, and a plurality of reducers 472 are installed on the upper end of the other side of the moving platform 2, wherein the reducer 472 on one side is fixedly connected to the output end of the motor 3 471, and the transmission shafts of the two reducers 472 penetrate into the interior of the positioning seat 2 45, and a transmission rod 473 is installed between the plurality of reducers 472;

[0064] Two transmission gears 1 474 are rotatably connected to the inner wall of one side of the positioning seat 2 45, and the transmission gears 1 474 are respectively fixedly connected to the transmission shaft of the rubber wheel 2 46. A transmission gear 2 475 is rotatably connected to the inner wall of the bottom side of the positioning seat 2 45, and the transmission gear 2 475 is fixedly connected to the transmission shaft passing through the reducer 472. A transmission gear 3 476 is meshedly connected between the transmission gear 2 475 and the inner walls of the two transmission gears 1 474.

[0065] During the use of this solution, when personnel need to drive the pressure vessel cylinder to rotate, they can first drive the motor three 471 to operate, so that the multiple reducers 472 can reduce the rotation transmission rate under the transmission of the transmission rod 473, and when the transmission rods of two transmission components 47 that penetrate into the interior of the positioning seat two 45 rotate, they synchronously drive the transmission gear two 475 to rotate, and the transmission gear one 474 and the transmission gear two 475 are meshed and connected through the transmission gear three 476. When the transmission gear two 475 rotates, the transmission gear one 474 synchronously rotates in the same direction, so that the pressure vessel cylinder between the rubber wheel two 46 can be driven to rotate under the friction force, so as to facilitate the subsequent cleaning and welding work of the welding position.

[0066] See also Figure 1 , Figure 3 and Figure 5 The position fine-tuning assembly 48 includes a hydraulic rod 481 installed at the upper center end of the moving platform 2, the upper end of the hydraulic rod 481 is fixedly connected to a carrying tray 482, a plurality of symmetrically distributed rubber pads 483 are fixedly connected to the inner wall of the carrying tray 482, a plurality of evenly distributed spherical grooves are opened on the bottom wall of the carrying tray 482, and balls 484 are rotatably connected between the inner walls of the spherical grooves.

[0067] During use of the present solution, when personnel need to push the pressure vessel cylinder in the front-to-back direction, the personnel can first drive the hydraulic rod 481 to drive the supporting tray 482 to move upward, so that the pressure vessel cylinder is separated from the top of the rubber wheel 2 46 and the rubber wheel 1 43. At this time, the pressure vessel cylinder has a local force limit under the friction of the rubber pad 483 to prevent the range of movement from being too large. Under the action of the ball 484, its bottom can greatly reduce the friction between the supporting tray 482, so that the personnel can push the pressure vessel cylinder in the front-to-back direction. At this time, the personnel can push one side of the pressure vessel cylinder to the inner wall of the centering component 5 for clamping and positioning.

[0068] See also Figure 1 and Figure 6The centering component 5 includes a mounting plate 51 fixedly connected to the side end of the moving table 2, a centering frame 52 is fixedly connected to the inner wall of the mounting plate 51, a plurality of movable sleeves 53 are movably connected between the inner walls of the centering frame 52, a connecting rod 54 is fixedly connected between the inner walls of the movable sleeves 53, one end of the connecting rod 54 is rotatably connected to the inner wall of the mounting plate 51, a roller 55 is rotatably connected between the inner walls of the other end of the connecting rod 54, a connecting block 56 is fixedly connected to one side of the centering frame 52, a pedestal 57 is fixedly connected to the inner wall of the mounting plate 51, the outer ends of the connecting block 56 and the pedestal 57 are rotatably connected to threaded blocks 58, a threaded rod 2 59 is installed through the inner walls of the two threaded blocks 58, and a motor 4 510 is installed at the other end of the threaded rod 2 59.

[0069] During the use of this solution, when the personnel need to assemble and splice two pressure vessel cylinders and one side of the pressure vessel cylinders is located between the inner walls of the centering frame 52, the personnel drive the motor 4 510 to drive the threaded rod 2 59, and then the threaded block 58 on the upper side of the connecting block 56 is driven to move away, and under the connection of the connecting block 56 and the pedestal 57, the centering frame 52 is passively rotated clockwise, and because one end of the connecting rod 54 is rotationally connected with the inner wall of the mounting plate 51, the center end is rotationally connected with the inner wall of the centering frame 52, so that when the centering frame 52 rotates clockwise, the connecting rod 54 rotates counterclockwise, so that the multiple rollers 55 are clamped on the outer wall of the pressure vessel cylinder, and the centering limit is performed, so that the pressure vessel cylinders on both sides can be guaranteed to be on the same horizontal plane;

[0070] In the embodiment, after the roller 55 centers and limits the pressure vessel cylinder, when the pressure vessel cylinder needs to be rotated for cleaning the welding position or subsequent welding, the pressure vessel cylinder can be rotated under the action of the roller 55, so that the pressure vessel cylinder can be limited by the centering position and can rotate under positioning, which is not easy to affect the subsequent process operations, thereby greatly improving the efficiency of the pressure vessel cylinder welding.

[0071] See also Figure 1 and Figure 7-8 The cleaning assembly 7 includes an electric push rod 71 installed on the inner wall of one side of the welding cover 6, one end of the electric push rod 71 is electrically connected to a motor installed on the welding cover 6, the bottom end of the electric push rod 71 is fixedly connected to a connecting plate 72, the lower end of the connecting plate 72 is installed with a T-shaped grinding sheet 73, one side end of the connecting plate 72 is provided with a cleaning brush assembly, and the other side end of the connecting plate 72 is installed with a levelness monitoring assembly.

[0072] During the use of this solution, when the pressure vessel cylinders on both sides are assembled and spliced, and a welding seam is left between the two, the personnel drive the electric push rod 71 to cause the connecting plate 72 to move downward synchronously with the grinding sheet 73, so that the vertical end of the grinding sheet 73 is located between the welding seams, and the horizontal end is attached to the outer wall of the welding position of the pressure vessel cylinder. Then, as the pressure vessel cylinder rotates continuously, the grinding sheet 73 is enabled to grind around the welding position of the pressure vessel cylinder to remove impurities such as scale, rust, and coating on the surface of the welding position of the pressure vessel cylinder, so as to avoid impurities and pollutants on the surface of the subsequent weldment affecting the welding quality, resulting in defects such as reduced weld strength, pores, and slag inclusions; at the same time, it also avoids splashing during welding caused by impurities and pollutants, and even welding accidents, thereby greatly improving the quality and safety of the subsequent pressure vessel cylinder welding;

[0073] During the grinding of the pressure vessel cylinder, the cleaning component simultaneously performs meticulous treatment on the welding position after grinding, which can absorb and collect the dust and impurities generated during the grinding of the pressure vessel cylinder, and clean the grinding welding position, further ensuring the cleanliness of the welding position of the pressure vessel cylinder, and improving the quality and safety of the subsequent pressure vessel cylinder welding;

[0074] At the same time, before the grinding work, the levelness monitoring component will once again detect the position of the pressure vessel cylinders after the two pressure vessel cylinders are assembled and spliced, to ensure the accuracy of the assembly position of the two pressure vessel cylinders, improve the quality and safety after welding, avoid rework after welding, and strengthen quality inspection work.

[0075] See also Figure 7-8 The cleaning brush assembly includes a fan unit 741 installed on one side of the connecting plate 72, a connecting box 742 is fixedly connected to the side end of the fan unit 741, a brush 745 is installed at the bottom end of one side of the connecting box 742, an air inlet 743 is fixedly connected to the bottom end of the other side of the connecting box 742, a pipe 744 is embedded and installed between the fan unit 741 and the connecting box 742, a pipe 2 746 is embedded and installed at the upper end of the fan unit 741, and the fan unit 741 and the connecting box 742 are both hollow.

[0076] During use of this solution, when the grinding disc 73 is grinding the welding position of the pressure vessel cylinder, its brush 745 will simultaneously move along the grinding position to brush off the attached dust, and simultaneously under the action of the fan unit 741, the generated debris, dust and other impurities are sucked into the air inlet 743 to prevent the debris and dust generated by grinding from flying around, and then under the action of the pipe 2 746, the impurities and dust are uniformly discharged to the collection point, which greatly ensures the cleanliness of the welding position of the pressure vessel cylinder.

[0077] See also Figure 7-9 The level monitoring assembly includes a second connection box 751 fixedly connected to the center end of the other side of the connection plate 72. Infrared level meters 752 are installed on the left and right side walls of the second connection box 751. The infrared level meters 752 are located between the gaps when the two cylinders are welded.

[0078] During the use of this solution, when the grinding sheet 73 is located in the gap of the pressure vessel cylinder welding, the infrared level 752 is located on the edge side of the pressure vessel cylinder. If the pressure vessel cylinder on one side has a position deviation in the up-down or left-right direction, the infrared level 752 does not receive the infrared recovery signal on one side, indicating that the pressure vessel cylinders on both sides are not at the same level and an alarm is issued. The personnel can check the placement and adjust the position of the pressure vessel cylinder before welding, avoiding rework or poor quality due to inaccurate welding position.

[0079] For example, when the infrared signal emitted by the infrared level meter 752 has the same rate and distance for receiving the recovered signal, it indicates that the positions of the pressure vessel cylinders on both sides are at the same level and welding work can be carried out.

[0080] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A pair-joining device for welding a pressure vessel cylinder, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is equipped with two symmetrically distributed moving tables (2); an X-axis moving assembly (3) is movably installed between the moving table (2) on one side and the workbench (1); a supporting assembly (4) is provided on the upper end of the moving table (2); a centering assembly (5) is installed on the side end of the moving table (2); and a welding cover (6) is fixedly connected to the outer end of the centering assembly (5) on one side, wherein: A welding head (61) is mounted on an inner wall of one side of the welding cover (6), a driving member (62) electrically connected to the welding head (61) is mounted on the top of the welding cover (6), and a cleaning assembly (7) is mounted on the inner wall of the other side of the welding cover (6); The support assembly (4) comprises two support seats (41) fixedly connected to the upper end of one side of the moving platform (2); a positioning seat (42) is fixedly connected between the inner walls of the support seat (41); two rubber wheels (43) are rotatably connected between the inner walls of the positioning seat (42); two support seats (44) are fixedly connected to the upper end of the other side of the moving platform (2); a positioning seat (45) is installed between the inner walls of the support seat (44); a rubber wheel (46) is rotatably connected between the inner walls of the positioning seat (45); a transmission assembly (47) is provided between the positioning seat (45) and the upper end of the moving platform (2); and a position fine-tuning assembly (48) is installed at the upper center end of the moving platform (2); The transmission assembly (47) comprises a third motor (471) mounted on the upper end of one side of the moving platform (2), and a plurality of reducers (472) mounted on the upper end of the other side of the moving platform (2), wherein the reducer (472) on one side is fixedly connected to the output end of the third motor (471), the transmission shafts of the two reducers (472) penetrate into the interior of the second positioning seat (45), and transmission rods (473) are mounted between the plurality of reducers (472); Two transmission gears (474) are rotatably connected to the inner wall of one side of the positioning seat (45), and the transmission gears (474) are respectively fixedly connected to the transmission shaft of the rubber wheel (46). A transmission gear (475) is rotatably connected to the inner wall of the bottom side of the positioning seat (45), and the transmission gear (475) is fixedly connected to the transmission shaft passing through the reducer (472). A transmission gear (476) is meshedly connected between the transmission gear (475) and the inner walls of the two transmission gears (474); The position fine-tuning assembly (48) comprises a hydraulic rod (481) mounted on the central end of the upper side of the moving platform (2); the upper end of the hydraulic rod (481) is fixedly connected to a carrying tray (482); a plurality of symmetrically distributed rubber pads (483) are fixedly connected to the inner wall of the carrying tray (482); a plurality of evenly distributed spherical grooves are formed on the bottom wall of the carrying tray (482); and balls (484) are rotatably connected between the inner walls of the spherical grooves; The cleaning assembly (7) comprises an electric push rod (71) mounted on an inner wall of one side of the welding cover (6), one end of the electric push rod (71) being electrically connected to a motor mounted on the welding cover (6), a connecting plate (72) being fixedly connected to the bottom end of the electric push rod (71), a grinding sheet (73) arranged in a T-shape being mounted on the lower end of the connecting plate (72), a cleaning brush assembly being disposed on one side end of the connecting plate (72), and a levelness monitoring assembly being mounted on the other side end of the connecting plate (72); The levelness monitoring assembly comprises a second connection box (751) fixedly connected to the central end of the other side of the connection plate (72), and infrared level meters (752) are installed on the left and right side walls of the second connection box (751), and the infrared level meters (752) are located between the gaps when the two cylinders are welded.

2. The assembly and splicing equipment for welding a pressure vessel cylinder according to claim 1, characterized in that: The X-axis moving assembly (3) comprises a slide groove (31) provided at the central end of the upper side of the workbench (1); a threaded rod (32) is installed between the left and right inner walls of the slide groove (31); a motor (33) is installed at the right end of the threaded rod (32); a sliding sleeve is threadedly connected to the outer end of the threaded rod (32); and the top end of the sliding sleeve is fixedly connected to the bottom of the moving platform (2) on one side.

3. The assembly and splicing equipment for welding a pressure vessel cylinder according to claim 1, characterized in that: The centering assembly (5) comprises a mounting plate (51) fixedly connected to the side end of the moving platform (2); a centering frame (52) is fixedly connected to the inner wall of the mounting plate (51); a plurality of movable sleeves (53) are movably connected between the inner walls of the centering frame (52); a connecting rod (54) is fixedly connected between the inner walls of the movable sleeves (53); one end of the connecting rod (54) is rotatably connected to the inner wall of the mounting plate (51); a roller (55) is rotatably connected between the inner walls of the other end of the connecting rod (54); a connecting block (56) is fixedly connected to one side of the centering frame (52); a pedestal (57) is fixedly connected to the inner wall of the mounting plate (51); the outer ends of the connecting block (56) and the pedestal (57) are rotatably connected to threaded blocks (58); a threaded rod 2 (59) is installed through the inner walls of the two threaded blocks (58); a motor 4 (510) is installed at the other end of the threaded rod 2 (59).

4. The assembly and splicing equipment for welding a pressure vessel cylinder according to claim 1, characterized in that: The cleaning brush assembly comprises a fan unit (741) installed on one side of a connecting plate (72); a connecting box (742) is fixedly connected to the side end of the fan unit (741); a brush (745) is installed on the bottom end of one side of the connecting box (742); an air inlet (743) is fixedly connected to the bottom end of the other side of the connecting box (742); a pipe (744) is embedded and installed between the fan unit (741) and the connecting box (742); a pipe (746) is embedded and installed at the upper end of the fan unit (741); and the fan unit (741) and the connecting box (742) are both hollow.

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