A welding device for processing pump accessories

Abstract

The present invention discloses a welding device for processing pump accessories, which relates to the technical field of pump accessories welding, including a processing box, a protective door, and a docking box. The present invention is provided with a fixing component inside the installation box, which can simultaneously and concentrically fix the flange and the sealing ring seat, and at the same time, the sealing ring seat is concentrically pressed and held at the top center of the flange to wait for welding, and a synchronous drive component and a welding and grinding composite component are provided on the side of the fixing component. The fixing component cooperates with the synchronous drive component to drive the sealing ring seat and the flange to rotate synchronously, which is convenient for the grinding composite component to perform welding, grinding and heat treatment along the connection between the sealing ring seat and the flange, and there is no need to transfer the sealing ring seat and the flange in sequence between the welding device, the grinding device, and the heat treatment device, and there is no need to repeatedly clamp, which reduces the error caused by repositioning, ensures the connection accuracy and consistency between the sealing ring seat and the flange, and improves the final sealing effect.

Description

Technical Field

[0001] The invention relates to the technical field of pump accessory welding, and in particular to a welding device for processing pump accessories. Background Art

[0002] The purpose of welding the sealing ring seat to the flange in pump accessories is to provide a stable foundation for installing the elastic sealing ring. Through welding, the sealing ring seat and the flange are tightly combined to form a whole, which helps to ensure that the elastic sealing ring does not shift or deform when under pressure or heat, thereby maintaining the sealing and reliability of the connection. The connection between the sealing ring seat and the flange usually needs to be polished and heat treated after welding. After welding, the connection may have uneven welds or welding slag. Grinding can remove these defects, ensure a smooth surface, and achieve the desired sealing effect. Heat treatment helps to eliminate the stress generated during welding, improve the strength and durability of the connection, and improve the mechanical properties of the material.

[0003] The prior art lacks a welding device with special composite functions for relative fixation, welding, grinding and heat treatment between the sealing ring seat and the flange. After welding, the sealing ring seat and the flange need to be transferred in sequence between the welding device, the grinding device and the heat treatment device. First, the process of gradually transferring to different devices will significantly increase the overall processing time and reduce production efficiency; secondly, each transfer requires repeated clamping, which not only increases the complexity of the operation, but also may cause clamping errors, thereby affecting the matching accuracy of the sealing ring seat and the flange; the repeated clamping process may cause damage to the sealing ring seat and the flange, affecting the sealing effect and connection strength; in addition, multi-step operations increase the risk of errors and reduce the consistency and stability of production. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that there is a lack of a welding device with special composite functions for relative fixation, welding, grinding and heat treatment between a sealing ring seat and a flange. After welding, the sealing ring seat and the flange need to be transferred in sequence between a welding device, a grinding device and a heat treatment device. Firstly, the process of gradually transferring to different devices will significantly increase the overall processing time and reduce production efficiency; secondly, each transfer requires repeated clamping, which not only increases the complexity of the operation, but also may cause clamping errors, thereby affecting the matching accuracy between the sealing ring seat and the flange; the repeated clamping process may cause damage to the sealing ring seat and the flange, affecting the sealing effect and the connection strength; in addition, the multi-step operation increases the risk of errors and reduces the consistency and stability of production, and a welding device for pump accessories processing is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A welding device for processing pump accessories comprises a processing box, a protective door and a docking box, wherein a bottom horizontal plate is fixedly arranged at the bottom of the inner cavity of the processing box, a bottom vertical plate is vertically fixedly arranged at the bottom of the bottom horizontal plate, a top vertical plate is fixedly arranged on the top of the bottom horizontal plate above the bottom vertical plate, a top groove is opened on the top of the side of the top vertical plate, a top horizontal plate is fixedly arranged on the side of the top vertical plate at the top groove, the side of the bottom vertical plate is stuck or has a bottom groove, a fixing plate is fixedly arranged on the top of the side of the bottom vertical plate, and a fixing component is arranged between the bottom horizontal plate and the top horizontal plate to fix the pump flange and the sealing ring seat concentrically and dock and abut each other A docking groove is provided on the side of the processing box, a docking box is fixedly arranged on the side of the docking groove, a triangular plate is vertically fixedly arranged on the bottom of the docking box, a bottom plate is fixedly arranged at the bottom of the triangular plate, a cylinder is fixedly arranged at the top edge of the bottom plate, a common plate is fixedly arranged at the output end of the cylinder, a mounting plate is vertically fixedly arranged on the side of the common plate, a welding and polishing composite component for welding the pump flange and the sealing ring seat to each other and polishing the weld is arranged on the mounting plate, and a heat insulation protection component for the welding and polishing composite component when the pump accessories are welded is arranged in the inner cavity of the docking box.

[0007] Optionally, a controller is fixedly installed on the side of the processing box, a top connection block is fixedly installed on the top edge of the processing box, a protective door is rotatably connected to the bottom of the top connection block, a closing handle is rotatably connected to the side of the protective door away from the top connection block, and a photoelectric sensor is fixedly installed on the edge of the front side of the processing box.

[0008] Optionally, the fixing assembly includes a right-angle folding plate, a top three-jaw chuck, a bottom three-jaw chuck and a synchronous driving assembly that drives the top three-jaw chuck and the bottom three-jaw chuck to rotate synchronously. The top of the top three-jaw chuck is provided with a labor-saving lever assembly that facilitates workers to manually separate the top three-jaw chuck and the bottom three-jaw chuck. The top of the right-angle folding plate is vertically fixed on the top of the processing box. A downward pressure column is movably inserted into the right-angle folding plate. The bottom of the right-angle folding plate is fixedly connected to one end of the top of the top holding spring. The top holding spring is sleeved on the outer wall of the lower pressure column. The bottom of the lower pressure column is fixedly provided with a straight rod, and the bottom of the straight rod is fixedly provided with a top three-jaw chuck.

[0009] Optionally, the force-saving lever assembly includes a lifting sleeve, a separation lever, a separation fork, and a support seat. The support seat is fixedly arranged on the top of the processing box, the side of the support seat is rotatably connected to the separation lever, the end of the separation lever is fixedly arranged with a separation fork, the top of the lower pressure column is fixedly arranged with a lifting sleeve, and the separation fork is inserted into the lifting sleeve.

[0010] Optionally, the synchronous drive assembly includes a drive motor, a vertical shaft, a small pulley, a large pulley, and a transmission belt. The drive motor is vertically fixed on a fixed plate, a vertical shaft is fixedly provided at the output end of the drive motor, small pulleys are fixedly provided on the outer wall of the vertical shaft at equal distances, a large pulley is movably inserted into the outer wall of the straight rod along the vertical direction, the bottom three-jaw chuck is rotatably connected to the bottom cross plate, a large pulley is also fixedly provided on the bottom of the rotating shaft of the bottom three-jaw chuck, and the outer walls of the large pulley and the small pulley are commonly sleeved with a transmission belt.

[0011] Optionally, the welding and polishing composite assembly includes a switching cylinder, a switching rod, a laser welding head, a mounting fork, and a grinding roller. The switching cylinder is vertically fixed on the side of the mounting plate, the switching cylinder output end is fixed with a switching rod, and the switching rod is vertically fixed with a laser welding head at one end away from the switching cylinder output end.

[0012] Optionally, a horizontal column is movably inserted into one end of the switching rod near the output end of the switching cylinder, the outer wall of the horizontal column is fixedly connected to one end of the transverse spring, the other end of the transverse spring is fixedly welded to the side of the switching rod, and a mounting fork is fixedly provided at the end of the horizontal column, and the mounting fork is rotatably connected to a grinding roller, and the common plate is fixedly provided with an ejector angle plate on the side of the horizontal column, and the end of the horizontal column contacts the side of the ejector angle plate.

[0013] Optionally, the thermal insulation protection assembly includes an insulation door, a blocking frame, a drive plate, and a starting wheel. The blocking frame is fixedly arranged in the inner cavity of the docking box. The docking box is rotatably connected to a top column on the side of the blocking frame. The outer wall of the top column is fixedly connected to one end of a reset torsion spring.

[0014] Optionally, the other end of the reset torsion spring is fixedly connected to the top of the docking box, an insulating door is fixedly provided at the bottom of the top column, the middle position of the side of the drive plate is fixedly provided at the end of the common plate, and the end of the drive plate is symmetrically rotatably connected to a starting wheel.

[0015] Optionally, a micro switch is fixedly provided on the top of the cylinder housing, a heating plate is fixedly provided on the rear side of the inner cavity of the processing box, and the micro switch and the photoelectric sensor are connected in series to the control circuit of the heating plate.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention is provided with a fixing component inside the installation box, which can simultaneously and concentrically fix the flange and the sealing ring seat, and at the same time concentrically press the sealing ring seat to the center of the top of the flange to wait for welding, and a synchronous driving component and a welding and grinding composite component are provided on the side of the fixing component. The fixing component cooperates with the synchronous driving component to drive the sealing ring seat and the flange to rotate synchronously, so that the grinding composite component is convenient for welding, grinding and heat treatment composite treatment along the connection between the sealing ring seat and the flange, and there is no need to transfer the sealing ring seat and the flange in sequence between the welding device, the grinding device and the heat treatment device, and there is no need for repeated clamping, which reduces the error caused by repositioning, ensures the connection accuracy and consistency between the sealing ring seat and the flange, improves the final sealing effect, performs composite treatment in the same device, reduces the risk of physical damage caused by multiple transfers, effectively protects the surface quality and structural strength of the sealing ring seat and the flange, simplifies the operation process, reduces the complexity of operation and the possibility of error, and improves the stability and reliability of the production process.

[0018] 2. The welding and polishing composite assembly of the present invention is fixed inside a docking box that is docked with a processing box by extending an air cylinder, and a heat insulation protection assembly is arranged in the inner cavity of the docking box. The air cylinder can drive the welding and polishing composite assembly to be moved out of the processing box after the welding and polishing composite assembly welds and polishes the connection between the sealing ring seat and the flange, so as to facilitate the installation of the heating plate inside the box to perform heat treatment on the connection between the sealing ring seat and the flange, and at the same time protect the welding and polishing composite assembly to avoid high temperature damage to the welding and polishing composite assembly.

[0019] 3. The welding and polishing composite assembly of the present invention is fixed inside a docking box docked with a processing box by extending into an air cylinder, and a heat insulation protection assembly is provided in the inner cavity of the docking box. The heat insulation protection assembly and the welding and polishing composite assembly are linked. When the welding and polishing composite assembly is driven to move laterally by the extending air cylinder, the heat insulation protection assembly can automatically open or close the docking box along with the transverse movement of the welding and polishing composite assembly.

[0020] 4. A protective door is provided on the front side of the processing box of the present invention, a photoelectric sensor is provided on the side of the protective door, and a micro switch is provided on the top of the cylinder shell. The photoelectric sensor and the micro switch are connected in series to the control line of the heating plate inside the processing box. Only when the protective door is in a closed state and the welding and grinding composite assembly is retracted from the processing box and the thermal insulation protection assembly is in a closed state, the heating plate can perform heat treatment on the connection between the sealing ring seat and the flange plate. On the one hand, heat leakage of the processing box is avoided, and on the other hand, the risk of damage to the welding and grinding composite assembly by high temperature is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 for Figure 1 Another perspective structural diagram of .

[0023] Figure 3 It is a structural schematic diagram of the force-saving lever assembly.

[0024] Figure 4 for Figure 3 Another perspective structural diagram of .

[0025] Figure 5 for Figure 2 Schematic diagram of the structure with the protective door opened.

[0026] Figure 6 for Figure 5 Schematic diagram of the cavity structure.

[0027] Figure 7 for Figure 5 Another perspective structural diagram of .

[0028] Figure 8 for Figure 7 Another perspective structural diagram of .

[0029] Fig. 9 Schematic diagram of the structure of the welding and grinding composite component.

[0030] Fig.10 for Fig. 9 Another structural diagram of .

[0031] Fig.11 This is a schematic diagram of the structure of the welding and grinding composite component and its connecting parts.

[0032] Fig.12 Schematic diagram of the structure of the welding and grinding composite component.

[0033] Fig.13 It is a schematic diagram of the structure of the top three-jaw chuck and its connecting parts.

[0034] In the figure: 1, processing box; 2, controller; 3, protection door; 4, closing handle; 5, photoelectric sensor; 6, top connection block; 7, support seat; 8, docking box; 9, triangle plate; 10, bottom plate; 11, separation lever; 12, separation fork; 13, right-angle folding plate; 14, top holding spring; 15, small pulley; 16, vertical shaft; 17, transmission belt; 18, driving motor; 19, large pulley; 20, bottom three-jaw chuck; 21, top groove; 22, top vertical plate; 23, fixed plate; 24, bottom vertical plate; 25, bottom groove; 26, bottom horizontal plate; 27, adding Hot plate; 28. Avoidance hole; 29. ​​Top cross plate; 30. Docking groove; 31. Insulated door; 32. Top column; 33. Blocking frame; 34. Reset torsion spring; 35. Starting wheel; 36. Extend into cylinder; 37. Micro switch; 38. Ejector angle plate; 39. Common plate; 40. Mounting plate; 41. Drive plate; 42. Mounting fork; 43. Grinding roller; 44. Transverse spring; 45. Switching cylinder; 46. Horizontal column; 47. Switching rod; 48. Laser welding head; 49. Pressing column; 491. Lifting sleeve; 50. One-shaped rod; 51. Top three-jaw chuck. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention.

[0037] Reference Figure 1-13A welding device for processing pump parts includes a processing box 1, a protective door 3, and a docking box 8. A bottom horizontal plate 26 is fixedly arranged at the bottom of the inner cavity of the processing box 1. A bottom vertical plate 24 is vertically fixedly arranged at the bottom of the bottom horizontal plate 26. A top vertical plate 22 is fixedly arranged above the bottom vertical plate 24 on the top of the bottom horizontal plate 26. A top groove 21 is opened on the top of the side of the top vertical plate 22. A top horizontal plate 29 is fixedly arranged on the side of the top vertical plate 22 at the top groove 21. The side of the bottom vertical plate 24 is stuck or has a bottom groove 25. The top of the side of the bottom vertical plate 24 is fixedly arranged A fixing assembly is provided between the fixing plate 23, the bottom transverse plate 26 and the top transverse plate 29 to concentrically fix the pump flange and the sealing ring seat and butt against each other. A butt joint groove 30 is provided on the side of the processing box 1. A butt joint box 8 is fixedly provided on the side of the butt joint groove 30 of the processing box 1. A triangular plate 9 is vertically fixedly provided at the bottom of the butt joint box 8. A bottom plate 10 is fixedly provided at the bottom of the triangular plate 9. The triangular plate 9 improves the connection strength between the bottom plate 10 and the butt joint box 8. The bottom plate 10 provides an installation platform for the welding and grinding composite assembly described below.

[0038] A cylinder 36 is fixedly provided at the top edge of the bottom plate 10, a common plate 39 is fixedly provided at the output end of the cylinder 36, a mounting plate 40 is vertically fixedly provided on the side of the common plate 39, a welding and polishing composite assembly for welding the pump flange and the sealing ring seat to each other and polishing the weld is provided on the mounting plate 40, an insulating protection assembly for the welding and polishing composite assembly when the pump accessories are welded is provided in the inner cavity of the docking box 8, a controller 2 is fixedly provided on the side of the processing box 1, a top connection block 6 is fixedly provided at the top edge of the processing box 1, a protective door 3 is rotatably connected to the bottom of the top connection block 6, a closing handle 4 is rotatably connected to the side of the protective door 3 away from the top connection block 6, a photoelectric sensor 5 is fixedly provided at the edge of the front side of the processing box 1, when the closing handle 4 is turned to the notch of the photoelectric sensor 5, the controller 2 knows that the protective door 3 is in a state of closing the front side of the processing box 1.

[0039] The fixing assembly includes a right-angle folding plate 13, a top three-jaw chuck 51, a bottom three-jaw chuck 20, and a synchronous driving assembly that drives the top three-jaw chuck 51 and the bottom three-jaw chuck 20 to rotate synchronously. A labor-saving lever assembly is arranged on the top of the top three-jaw chuck 51 for workers to manually separate the top three-jaw chuck 51 and the bottom three-jaw chuck 20. The top of the right-angle folding plate 13 is vertically fixed on the top of the processing box 1. The right-angle folding plate 13 is movably inserted with a downward pressure column 49. The bottom of the right-angle folding plate 13 is fixedly connected to one end of the top of the top holding spring 14, and the top holding spring 14 is sleeved on the outer wall of the downward pressure column 49.

[0040] A straight rod 50 is fixedly provided at the bottom of the lower pressure column 49, and a top three-jaw chuck 51 is fixedly provided at the bottom of the straight rod 50. The labor-saving lever assembly includes a lifting sleeve 491, a separation lever 11, a separation fork 12, and a support seat 7. The support seat 7 is fixedly provided on the top of the processing box 1, and the side of the support seat 7 is rotatably connected with the separation lever 11, and the end of the separation lever 11 is fixedly provided with a separation fork 12. A lifting sleeve 491 is fixedly provided on the top of the lower pressure column 49, and the separation fork 12 is inserted into the lifting sleeve 491. When the top holding spring 14 is at its original length, the top three-jaw chuck 51 and the bottom three-jaw chuck 20 are in a completely fitted state. The labor-saving lever assembly allows workers to easily separate the top three-jaw chuck 51 and the bottom three-jaw chuck 20 from each other by using the lever principle, so as to facilitate the installation of two pump accessories to be welded.

[0041] The synchronous drive assembly includes a drive motor 18, a vertical shaft 16, a small pulley 15, a large pulley 19, and a transmission belt 17. The drive motor 18 is vertically fixed on a fixed plate 23. The output end of the drive motor 18 is fixedly provided with a vertical shaft 16. Small pulleys 15 are equidistantly fixed on the outer wall of the vertical shaft 16. A large pulley 19 is movably inserted into the outer wall of the straight rod 50 along the vertical direction. The bottom three-jaw chuck 20 is rotatably connected to the bottom cross plate 26. The top cross plate 29 is provided with an avoidance hole 28 at the position of the straight rod 50, which is greater than the horizontal length of the straight rod 50, to make way for the vertical displacement of the straight rod 50, and the diameter of the avoidance hole 28 is not greater than the diameter of the large pulley 19, so that the top cross plate 29 is used to support the large pulley 19.

[0042] A large pulley 19 is also fixedly provided at the bottom of the rotating shaft of the bottom three-jaw chuck 20. The outer walls of the large pulley 19 and the small pulley 15 are both covered with a transmission belt 17. Therefore, the driving motor 18 drives the top three-jaw chuck 51 and the bottom three-jaw chuck 20 to rotate slowly through the small pulley 15, the large pulley 19, and the transmission belt 17.

[0043] The welding and grinding composite assembly includes a switching cylinder 45, a switching rod 47, a laser welding head 48, a mounting fork 42, and a grinding roller 43. The switching cylinder 45 is vertically fixed on the side of the mounting plate 40. The switching cylinder 45 output end is fixedly provided with a switching rod 47. The switching rod 47 is vertically fixedly provided with a laser welding head 48 at one end away from the output end of the switching cylinder 45. A horizontal column 46 is movably inserted into the switching rod 47 at one end close to the output end of the switching cylinder 45. The outer wall of the horizontal column 46 is fixedly connected to one end of the transverse spring 44. The other end of the transverse spring 44 is fixedly welded to the side of the switching rod 47. A mounting fork 42 is fixedly provided at the end of the horizontal column 46. The mounting fork 42 is rotatably connected to the grinding roller 43. The common plate 39 is fixedly provided with an ejector angle plate 38 on the side of the horizontal column 46. The end of the horizontal column 46 contacts the side of the ejector angle plate 38. When the horizontal column 46 moves along the inclined surface of the ejector angle plate 38, the grinding roller 43 will move laterally.

[0044] The thermal insulation protection assembly includes an thermal insulation door 31, a blocking frame 33, a driving plate 41, and a starting wheel 35. The blocking frame 33 is fixedly arranged in the inner cavity of the docking box 8. The docking box 8 is rotatably connected to a top column 32 on the side of the blocking frame 33. The outer wall of the top column 32 is fixedly connected to one end of a reset torsion spring 34. The other end of the reset torsion spring 34 is fixedly connected to the top of the docking box 8. The thermal insulation door 31 is fixedly arranged at the bottom of the top column 32. The thermal insulation door 31 and the blocking frame 33 form a one-way door structure.

[0045] The middle position of the side of the driving plate 41 is fixedly set at the end of the common plate 39, the end of the driving plate 41 is symmetrically connected to the starting wheel 35, a micro switch 37 is fixedly set on the top of the cylinder 36 shell, and a heating plate 27 is fixedly set on the rear side of the inner cavity of the processing box 1. The micro switch 37 and the photoelectric sensor 5 are connected in series to the control circuit of the heating plate 27.

[0046] The specific implementation steps and principles of the present invention are as follows:

[0047] The worker first opens the protective door 3 and presses down one end of the separation lever 11. The separation lever 11 drives the pressing column 49 to move upward through the separation fork 12 and the lifting sleeve 491, driving the top three-jaw chuck 51 and the bottom three-jaw chuck 20 away from the appropriate position. The worker puts the flange into the top of the bottom three-jaw chuck 20, and the sealing ring seat into the top three-jaw chuck 51. After using tools to operate the bottom three-jaw chuck 20 and the top three-jaw chuck 51 to fix the flange and the sealing ring seat respectively, the separation lever 11 is released. Under the reset of the top holding spring 14, the sealing ring seat is concentrically held against the top of the flange.

[0048] Finally, close the protection door 3, turn the closing handle 4 to the photoelectric sensor 5, and then start the controller 2 to control the extension cylinder 36 to extend, driving the welding and grinding composite assembly to gradually enter the processing box 1. During this process, the starting wheel 35 is used to push the insulation door 31 to rotate, and the reset torsion spring 34 is twisted, and the drive motor 18 is started. The drive motor 18 drives the top three-jaw chuck 51 and the bottom three-jaw chuck 20 to rotate slowly at the same speed through the small pulley 15, the large pulley 19, and the transmission belt 17. During this period, the laser welding head 48 welds the connection between the flange and the sealing ring seat. After waiting for a period of time, start the switching cylinder 45, and the switching cylinder 45 drives the grinding roller 43 to gradually move to the connection between the flange and the sealing ring seat to grind the weld. During this period, the horizontal column 46 is gradually supported by the ejection angle plate 38, and the grinding roller 43 is pressed to the connection between the flange and the sealing ring seat.

[0049] After waiting for the set time, the controller 2 controls the extension cylinder 36 to retract, driving the welding and grinding composite assembly to gradually move out of the processing box 1. During this period, the reset torsion spring 34 is reset, and the insulation door 31 is again pressed against the side of the blocking frame 33 to close the processing box 1. After waiting for the extension cylinder 36 to be completely retracted, the micro switch 37 is pressed by the common plate 39. At this time, the controller 2 controls the heating plate 27 to generate heat, and the driving motor 18 drives the top three-jaw chuck 51 and the bottom three-jaw chuck 20 to continue to rotate slowly at the same speed through the small pulley 15, the large pulley 19, and the transmission belt 17, so as to perform heat treatment on the welding joints of the flange and the sealing ring seat.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for processing pump parts, comprising a processing box (1), a protective door (3), and a docking box (8), characterized in that: A bottom transverse plate (26) is fixedly arranged at the bottom of the inner cavity of the processing box (1), a bottom vertical plate (24) is vertically fixedly arranged at the bottom of the bottom transverse plate (26), a top vertical plate (22) is fixedly arranged at the top of the bottom transverse plate (26) above the bottom vertical plate (24), a top allowance groove (21) is opened at the top of the side of the top vertical plate (22), a top transverse plate (29) is fixedly arranged at the side of the top vertical plate (22) at the top allowance groove (21), the side of the bottom vertical plate (24) is stuck or has a bottom allowance groove (25), a fixing plate (23) is fixedly arranged at the top of the side of the bottom vertical plate (24), a fixing component is arranged between the bottom transverse plate (26) and the top transverse plate (29) to fix the pump flange and the sealing ring seat concentrically and butt against each other, and the fixing component is fixed between the bottom transverse plate (26) and the top transverse plate (29). The assembly comprises a right-angle folding plate (13), a top three-jaw chuck (51), a bottom three-jaw chuck (20), and a synchronous drive assembly for driving the top three-jaw chuck (51) and the bottom three-jaw chuck (20) to rotate synchronously, the synchronous drive assembly comprising a drive motor (18), a vertical shaft (16), a small pulley (15), a large pulley (19), and a transmission belt (17); the drive motor (18) is vertically fixed on a fixed plate (23); the output end of the drive motor (18) is fixedly provided with a vertical shaft (16); the outer wall of the vertical shaft (16) is fixedly provided with small pulleys (15) at equal intervals; and a labor-saving lever is provided on the top of the top three-jaw chuck (51) for facilitating a worker to manually separate the top three-jaw chuck (51) and the bottom three-jaw chuck (20). The assembly comprises a right-angle folded plate (13) having a top which is vertically fixedly arranged on the top of a processing box (1); a downward pressure column (49) is movably inserted into the right-angle folded plate (13); the bottom of the right-angle folded plate (13) is fixedly connected to one end of the top of a supporting spring (14); the supporting spring (14) is sleeved on the outer wall of the downward pressure column (49); a straight rod (50) is fixedly arranged on the bottom of the downward pressure column (49); a large pulley (19) is movably inserted into the outer wall of the straight rod (50) in a vertical direction; the bottom three-jaw chuck (20) is rotatably connected to the bottom cross plate (26); a large pulley (19) is also fixedly arranged on the bottom of the rotating shaft of the bottom three-jaw chuck (20); and the outer walls of the large pulley (19) and the small pulley (15) are both sleeved with a transmission belt ( 17), a top three-jaw chuck (51) is fixedly provided at the bottom of the straight rod (50), the force-saving lever assembly comprises a lifting sleeve (491), a separation lever (11), a separation fork (12), and a support seat (7), the support seat (7) is fixedly provided at the top of the processing box (1), the side of the support seat (7) is rotatably connected to the separation lever (11), the end of the separation lever (11) is fixedly provided with a separation fork (12), the top of the lower pressure column (49) is fixedly provided with a lifting sleeve (491), the separation fork (12) is inserted into the lifting sleeve (491), the side of the processing box (1) is provided with a docking groove (30), and the processing box (1) is fixedly provided with a docking box (8) on the side of the docking groove (30),A triangular plate (9) is vertically fixedly arranged at the bottom of the docking box (8), a bottom plate (10) is fixedly arranged at the bottom of the triangular plate (9), an insert cylinder (36) is fixedly arranged at the top edge of the bottom plate (10), a common plate (39) is fixedly arranged at the output end of the insert cylinder (36), a mounting plate (40) is vertically fixedly arranged on the side of the common plate (39), a welding and grinding composite assembly for welding the pump flange and the sealing ring seat to each other and grinding the weld is arranged on the mounting plate (40), the welding and grinding composite assembly comprises a switching cylinder (45), a switching rod (47), a laser welding head (48), a mounting fork (42), and a grinding roller (43), the switching cylinder (45) is vertically fixedly arranged on the side of the mounting plate (40), the switching rod (47) is fixedly arranged at the output end of the switching cylinder (45), and the mounting fork (42) is fixedly arranged at the output end of the switching cylinder (45). ), a laser welding head (48) is vertically fixedly arranged at one end of the switching rod (47) away from the output end of the switching cylinder (45), a horizontal column (46) is movably inserted into one end of the switching rod (47) close to the output end of the switching cylinder (45), the outer wall of the horizontal column (46) is fixedly connected to one end of the transverse spring (44), the other end of the transverse spring (44) is fixedly welded to the side of the switching rod (47), a mounting fork (42) is fixedly arranged at the end of the horizontal column (46), the mounting fork (42) is rotatably connected to the grinding roller (43), the common plate (39) is fixedly arranged at the side of the horizontal column (46), the end of the horizontal column (46) contacts the side of the ejection angle plate (38), and the inner cavity of the docking box (8) is provided with a heat insulation protection component for the welding and grinding composite component when the pump accessories are welded. , 2. A welding device for processing pump accessories according to claim 1, characterized in that: A controller (2) is fixedly arranged on the side of the processing box (1), a top connection block (6) is fixedly arranged at the top edge of the processing box (1), a protection door (3) is rotatably connected to the bottom of the top connection block (6), a closing handle (4) is rotatably connected to the side of the protection door (3) away from the top connection block (6), and a photoelectric sensor (5) is fixedly arranged at the edge of the front side of the processing box (1).

3. A welding device for processing pump parts according to claim 1, characterized in that: The heat insulation protection assembly comprises a heat insulation door (31), a blocking frame (33), a driving plate (41), and a starting wheel (35); the blocking frame (33) is fixedly arranged in the inner cavity of the docking box (8); the docking box (8) is rotatably connected to a top column (32) on the side of the blocking frame (33); and the outer wall of the top column (32) is fixedly connected to one end of a return torsion spring (34).

4. A welding device for processing pump parts according to claim 3, characterized in that: The other end of the return torsion spring (34) is fixedly connected to the top of the docking box (8), an insulating door (31) is fixedly arranged at the bottom of the top column (32), the middle position of the side of the drive plate (41) is fixedly arranged at the end of the common plate (39), and the end of the drive plate (41) is symmetrically rotatably connected to a starting wheel (35).

5. A welding device for processing pump parts according to claim 1, characterized in that: A micro switch (37) is fixedly arranged on the top of the housing of the extended cylinder (36), a heating plate (27) is fixedly arranged on the rear side of the inner cavity of the processing box (1), and the micro switch (37) and the photoelectric sensor (5) are connected in series to the control circuit of the heating plate (27).

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