Intelligent welding equipment and method for slurry pump shell
The self-regulating cooling system automatically adjusts the cooling gas output according to the size of the pump casing, solving the problem of insufficient or overcooling of mud pump casing welding equipment, improving welding quality and efficiency, and reducing energy consumption.
Patent Information
- Application Number
- CN202510876931.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-09-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing intelligent welding equipment for mud pump casings suffers from insufficient or excessive cooling during the cooling process, which affects welding quality and production efficiency, and requires manual control, resulting in energy waste.
A self-regulating cooling system was designed, which automatically adjusted the cooling gas output according to the size of the pump housing through a gas self-regulating mechanism. The cooling process was matched with the rotation speed of the rotary table and the welding machine, and the arc-shaped groove plate was used to cover the welding area for uniform cooling.
It achieves the matching of cooling effect and welding rhythm, improves welding quality and efficiency, reduces energy consumption, and ensures the stability and consistency of the welding process.
Smart Images
Figure CN120587802A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of intelligent welding equipment, and in particular to intelligent welding equipment for a mud pump casing and a method thereof. Background Art
[0002] In the petroleum, mining, construction and other industries, there is a great demand for mud pumps. Traditional manual welding is inefficient and cannot meet the needs of large-scale production. Intelligent welding equipment can realize automated continuous operation, greatly improving production efficiency. The mud pump casing works in a harsh environment and needs to withstand high pressure, mud erosion, etc., which requires high welding quality. Intelligent welding equipment can ensure the consistency and stability of the weld and reduce welding defects by precisely controlling the welding parameters and trajectories.
[0003] At present, after the intelligent welding equipment for mud pump casings completes welding, it is necessary to cool the welding parts to ensure the sealing and structural strength of the casing after welding. However, most equipment on the market adopts a quantitative cold air delivery method, which requires manual intervention and regulation during equipment operation. As a result, insufficient cooling is prone to occur when welding large pump casings, affecting the welding quality. When welding small pump casings, excessive cooling will cause energy waste, which not only reduces production efficiency but also increases operating costs. To this end, we propose an intelligent welding equipment and method for mud pump casings. Summary of the Invention
[0004] A technical problem to be solved by this application is: how to design an intelligent welding device and method for a mud pump casing that can self-regulate the cooling system according to the size of the mud pump casing. In order to solve the above technical problems, an embodiment of the present application provides an intelligent welding device for a mud pump casing, including a workbench, a support frame and a rotating table, wherein a pump casing body is arranged on the rotating table, an arc-shaped groove plate for conveying cold air is arranged on the outer side of the pump casing body, a contact rod is movably arranged on the outer side of the pump casing body, a gas self-regulating mechanism for driving the arc-shaped groove plate and the contact rod to move to the pump casing body is arranged on the workbench, a plurality of extrusion plates are movably arranged on the inner side of the pump casing body, and an annular clamping mechanism for driving the plurality of extrusion plates to fit onto the inner side of the pump casing body is arranged on the rotating table.
[0005] In some embodiments, the annular clamping mechanism includes a connecting tube arranged on a rotating table, a lower connecting ring is arranged on the inner side of the connecting tube, a plurality of guide rods are arranged on the top of the lower connecting ring, a guide plate is movably sleeved on the outer sides of the plurality of guide rods, and an upper connecting ring is arranged on the top of the plurality of guide rods.
[0006] In some embodiments, a straight plate is provided on the top of the upper connecting ring, a spline groove is provided on the inner side of the straight plate, a spline shaft for installing the extrusion plate is movably provided on the inner side of the spline groove, a tension spring connected to the straight plate is sleeved on the outer side of the spline shaft, and an inclined rod is provided on the end of the spline shaft that passes through the inner side of the straight plate.
[0007] In some embodiments, the inclined surface of the inclined rod is movably provided with a frustum block 2, the internal thread of the frustum block 2 is connected to a threaded rod, and a motor is provided between the bottom end of the threaded rod and the inner bottom of the connecting tube.
[0008] In some embodiments, the gas self-regulating mechanism includes a frustum block threadedly connected to the outside of the threaded rod, a fixed plate is provided on the top of the workbench, a side plate is provided on the side of the fixed plate, an oblique head slide rod is movably provided on the inner side of the side plate and contacts the outer side of the frustum block, and a spring connected to the side plate is sleeved on the outer side of the oblique head slide rod.
[0009] In some embodiments, a base plate is provided on the end face of the bevel slide away from the frustum block 1, a gear 1 is rotatably provided on the side of the fixed plate, and the outer side of the gear 1 is meshedly connected with a rack 1 connected to the top of the base plate.
[0010] In some embodiments, a rack 2 meshing with gear 1 is movably provided on the side of the fixed plate, a sleeve plate is provided on the top of the gear 1, a straight tube connected to the inner side of the arc-shaped groove plate is provided on the inner side of the sleeve plate, a plurality of rollers are movably inlaid on the inner side of the arc-shaped groove plate, and a hose is provided on the end of the straight tube.
[0011] In some embodiments, the outer side of the straight pipe is sleeved with a connecting pipe connected to the interior, the inner side of the connecting pipe is movably provided with a rotating shaft, the outer side of the rotating shaft is sleeved with a butterfly valve disk, and the bottom end of the rotating shaft passes through the connecting pipe sleeve and is provided with gear 2.
[0012] In some embodiments, a limit plate is provided on the outside of the straight tube, a moving rod is movably provided on the inside of the limit plate, a vertical plate connected to the contact rod is provided at the end of the moving rod, a spring 2 connected to the vertical plate is sleeved on the outside of the moving rod, and a rack 3 meshing with gear 2 is provided at the end of the moving rod.
[0013] A method for intelligent welding of a slurry pump casing, performed using any one of the devices described in claims 1 to 9, is characterized in that it comprises the following steps: S1. Place the arc trough plate on the top of the corresponding support frame, then start the motor to work; S2. When the motor is working, it will drive the threaded rod to rotate. When the threaded rod rotates, it will simultaneously drive the frustum block 2 and the frustum block 1 to rise; S3, when the frustum block 2 rises, it squeezes the oblique rod, causing the oblique rod to drive the spline shaft to slide in the spline groove opened on the inner side of the straight plate, and pulls the tension spring during the movement. At this time, the spline shaft drives the extrusion plate to squeeze the inner side of the pump casing body, completing the top of the pump casing body; S4. When the frustum block 1 rises, it squeezes the inclined surface of the oblique head slide rod and the spring 1 at the same time. At this time, the oblique head slide rod drives the bottom plate to move, and the bottom plate drives the rack 1 to move outside the gear 1, thereby driving the gear 1 to rotate. At this time, the rack 2 will move, and the rack 2 will drive the straight tube to move through the sleeve plate. S5. When the straight pipe moves, the contact rod will first contact the outside of the pump casing. At this time, it will drive the rack three to move through the vertical plate and the moving rod. The rack three will drive the gear two to rotate, causing the rotating shaft to rotate. The rotating shaft will drive the butterfly valve disc to rotate. Therefore, before the arc-shaped groove plate reaches the outside of the pump casing, the butterfly valve disc will be opened according to the different sizes of the pump casing, thereby providing different sizes of cooling air for the pump casings. S6. At this time, the rotating table will rotate, causing the pump casing body and the support frame to rotate synchronously. At this time, the welding machine on the workbench will weld the pump casing body. The welded area will reach the arc groove plate for uniform cooling.
[0014] The present invention has at least the following beneficial effects: 1. The arc-shaped groove plate covers the completed welding area, which can significantly expand the cooling area. At the same time, the rotation speed of the rotary table and the welding machine is combined to dynamically adjust the cold air delivery volume to match the cooling process with the welding rhythm. This adaptive cooling method not only improves the cooling effect and ensures the welding quality of the mud pump housing, but also avoids overcooling and effectively reduces energy consumption. 2. The gas self-regulating mechanism operates automatically under the drive of the welding clamping mechanism. It senses the size of the pump casing through the contact rod. Before the arc trough plate starts the cooling process, the mechanism can adjust the output of the cooling gas based on the acquired size data to ensure that the cooling intensity is adapted to the size of the pump casing. 3. The annular clamping mechanism and the arc-shaped extrusion block work together to achieve rapid positioning and secure clamping of the pump casing. The rotary table drives the pump casing to rotate at a constant speed, transforming it into a dynamic welding method in which the workpiece rotates. This significantly improves welding efficiency and coverage, effectively reduces equipment motion path loss, and ensures the stability of the welding process and consistency of weld quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the gas self-regulating mechanism, the rotating table and the arc-shaped slot plate of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the pump casing body of the present invention; Figure 4 It is a structural schematic diagram of the gas self-regulating mechanism and the annular clamping mechanism of the present invention; Figure 5 It is a structural schematic diagram of the annular clamping mechanism and the extrusion block of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the straight plate, the oblique rod and the spline shaft of the present invention; Figure 7 Schematic diagram of the structure of the gas self-regulating mechanism of the present invention; Figure 8 This is a schematic structural diagram of the connecting pipe, straight pipe, arc-shaped slot plate and contact rod of the present invention; Figure 9 It is a structural schematic diagram of the contact rod, moving rod and butterfly valve disc of the present invention.
[0016] In the figure: 1. Workbench; 2. Support frame; 3. Rotating table; 4. Pump housing; 5. Arc groove plate; 6. Contact rod; 7. Gas self-regulating mechanism; 71. Round table block 1; 72. Fixed plate; 73. Bevel slide bar; 74. Spring 1; 75. Side plate; 76. Rack 1; 77. Rack 2; 78. Hose; 79. Bushing; 710. Straight pipe; 711. Gear 1; 712. Connecting pipe; 713. Roller; 714. Limit plate; 715. Vertical plate; 716 , moving rod; 717, spring two; 718, rack three; 719, gear two; 720, butterfly valve disc; 721, rotating shaft; 722, bottom plate; 8, annular clamping mechanism; 81, connecting cylinder; 82, motor; 83, threaded rod; 84, guide rod; 85, frustum block two; 86, upper connecting ring; 87, guide plate; 88, lower connecting ring; 89, straight plate; 810, inclined rod; 811, spline shaft; 812, spline groove; 813, tension spring; 9, extrusion plate. DETAILED DESCRIPTION
[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] Example 1: Please refer to Figure 1-9The present invention provides a technical solution: an intelligent welding device for a mud pump casing, comprising a workbench 1, a support frame 2 and a rotating table 3, a pump casing body 4 is provided on the rotating table 3, an arc-shaped slot plate 5 for conveying cold air is provided on the outside of the pump casing body 4, a contact rod 6 is movably provided on the outside of the pump casing body 4, a gas self-regulating mechanism 7 is provided on the workbench 1 to drive the arc-shaped slot plate 5 and the contact rod 6 to move to the pump casing body 4, a plurality of extrusion plates 9 are movably provided on the inside of the pump casing body 4, and an annular clamping mechanism 8 is provided on the rotating table 3 to drive the plurality of extrusion plates 9 to fit the inside of the pump casing body 4; The arc-shaped groove plate 5 can cover the outer side of the top end of the pump casing body 4, which is the part that needs to be welded, and can also be used when welding the outer shell. In this way, by increasing the area, the loss of cold air can be reduced, and the welding point can be completely cooled by calculation to increase the overall sealing. The end of the contact rod 6 is set to be circular, so that when it contacts the pump casing body 4, a certain friction force is reduced.
[0019] The annular clamping mechanism 8 includes a connecting tube 81 arranged on the rotating table 3, and a lower connecting ring 88 is arranged on the inner side of the connecting tube 81. A plurality of guide rods 84 are arranged on the top of the lower connecting ring 88. The outer sides of the plurality of guide rods 84 are movably provided with guide plates 87, and the tops of the plurality of guide rods 84 are provided with an upper connecting ring 86. The guide rods 84 added by the upper connecting ring 86 and the lower connecting ring 88 allow the guide plate 87 to be fixed between the two, and the upper connecting ring 86 and the lower connecting ring 88 also have a certain limiting effect.
[0020] A straight plate 89 is provided at the top of the upper connecting ring 86, and a spline groove 812 is provided on the inner side of the straight plate 89. A spline shaft 811 for mounting the extrusion plate 9 is movably provided on the inner side of the spline groove 812. A tension spring 813 connected to the straight plate 89 is sleeved on the outer side of the spline shaft 811, and an inclined rod 810 passing through the inner side of the straight plate 89 is provided at the end of the spline shaft 811.
[0021] The inclined surface of the inclined rod 810 is movably provided with a second frustum block 85, the internal thread of the second frustum block 85 is connected to the threaded rod 83, and a motor 82 is provided between the bottom end of the threaded rod 83 and the inner bottom of the connecting tube 81; The second cone block 85 is driven to rise under the drive of the threaded rod 83, so that the end face of the inclined rod 810 contacts and moves away from the second cone block 85. Therefore, it can move in the spline groove 812 through the spline shaft 811. The arrangement of the spline shaft 811 and the spline groove 812 can prevent the extrusion block from rotating. At this time, the tension spring 813 arranged on the outer surface of the spline shaft 811 can drive the extrusion block to reset when the second cone block 85 descends. Example 2: Please refer to Figure 7-9The present invention provides a technical solution: the gas self-regulating mechanism 7 includes a truncated cone block 71 threadedly connected to the outside of the threaded rod 83, a fixed plate 72 is provided on the top of the workbench 1, and a side plate 75 is provided on the side of the fixed plate 72. The inner side of the side plate 75 is movably provided with an oblique head slide rod 73 that contacts the outer side of the truncated cone block 71, and the outer side of the oblique head slide rod 73 is sleeved with a spring 74 connected to the side plate 75; The inclined surface of the bevel slide 73 corresponds to the inclined surface of the truncated cone block 71. When the truncated cone block 71 moves, it can drive the bevel slide 810 to move. The spring 74 sleeved on the outer surface of the bevel slide 73 can drive the bevel slide 73 to reset after the pump casing body 4 is removed after the welding work is completed. The bevel slide 73 can only slide inside the side plate 75 and will not rotate.
[0022] A bottom plate 722 is provided on the end face of the oblique head slide 73 away from the frustum block 1 71 , and a gear 1 711 is rotatably provided on the side of the fixed plate 72 , and the outer side of the gear 1 711 is meshedly connected with a rack 1 76 connected to the top of the bottom plate 722 .
[0023] A rack 2 77 is movably provided on the side of the fixed plate 72 and meshes with the gear 1 711. A sleeve plate 79 is provided on the top of the gear 1 711. A straight tube 710 connected to the inner side of the arcuate slot plate 5 is provided on the inner side of the sleeve plate 79. A plurality of rollers 713 are movably embedded on the inner side of the arcuate slot plate 5. A hose 78 is provided at the end of the straight tube 710. When the bottom plate 722 is moved, the rack 2 77 can be driven to move, so that the rack 2 77 drives the gear 1 711 to rotate. Therefore, the rack 2 77 meshing with the gear 1 711 will move in the opposite direction to the rack 1 76. After moving, the rack 2 77 drives the straight tube 710 and the arc-shaped groove plate 5 to fit toward the welding point.
[0024] The outer side of the straight tube 710 is sheathed with a connecting tube 712 communicating with the inner side. A rotating shaft 721 is movably provided inside the connecting tube 712. A butterfly valve disc 720 is sheathed on the outer side of the rotating shaft 721. The bottom end of the rotating shaft 721 passes through the connecting tube 712 and is sheathed with a second gear 719. Before the contact rod 6 contacts the pump housing body 4, the butterfly valve disc 720 is fully opened, but the hose 78 does not transport cold air to the straight pipe 710. At this time, the contact rod 6 will rotate only after contacting the pump housing body 4, thereby controlling the amount of cold air intake.
[0025] A limit plate 714 is provided on the outside of the straight tube 710. A movable rod 716 is movably provided on the inside of the limit plate 714. A vertical plate 715 connected to the contact rod 6 is provided at the end of the movable rod 716. A second spring 717 connected to the vertical plate 715 is sleeved on the outside of the movable rod 716. A third rack 718 meshing with a second gear 719 is provided at the end of the movable rod 716. By moving the rack three 718 and rotating the meshing gear two 719, the rotating shaft 721 can be driven to rotate. Therefore, the opening and closing angles of the butterfly valve disc 720 can be controlled by the rotating shaft 721, so that it can automatically pair different pump casing bodies 4, thereby increasing efficiency and avoiding manual intervention.
[0026] When using the device, first place the pump casing body 4 on the support frame 2, then start the motor 82, the motor 82 will drive the threaded rod 83 to rotate, and when the threaded rod 83 rotates, it will drive the second frustum block 85 to rise, and when the frustum block 85 rises, it will squeeze the inclined rod 810, and the inclined rod 810 will squeeze the spline shaft 811 to slide in the spline groove 812, and then the spline shaft 811 will drive the extrusion plate 9 to squeeze the inside of the pump casing body 4, and the tension spring 813 will be stretched; As the frustum block 2 85 rises, the frustum block 1 71 also rises, and the frustum block 1 71 drives the oblique head slide 73 to slide in the side plate 75 and squeezes the spring 1 74 to deform. At this time, the oblique head slide 73 drives the bottom plate 722 to move, and the bottom plate 722 drives the rack 1 76 to move on the gear 1 711. The gear 1 711 rotates, which drives the rack 2 77 meshing with the outer surface to move. The moving direction of the rack 2 77 is opposite to that of the rack 1 76. Therefore, the rack 2 77 drives the sleeve plate 79 to move, and the sleeve plate 79 drives the straight tube 7 10 and the arc-shaped groove plate 5 move. Before the arc-shaped groove plate 5 contacts the pump casing body 4, the contact rod 6 first squeezes and contacts the pump casing body 4. At this time, the contact rod 6 will drive the moving rod 716 to move through the vertical plate 715. The moving rod 716 will drive the rack three 718 to move on the outside of the gear two 719. The gear two 719 rotates, which will drive the internal rotating shaft 721 to rotate. The rotating shaft 721 will drive the butterfly valve disc 720 to close. The opening and closing angle at this time is the flow rate of the cold air from the straight pipe 710 entering the interior of the arc-shaped groove plate 5.
[0027] A method for intelligent welding of a slurry pump casing, performed using any one of the devices described in claims 1 to 9, is characterized in that it comprises the following steps: S1. Place the arc-shaped slot plate 5 on the top of the corresponding support frame 2, and then start the motor 82 to work; S2. When the motor 82 is working, it drives the threaded rod 83 to rotate. When the threaded rod 83 rotates, it drives the frustum block 2 85 and the frustum block 1 71 to rise at the same time. S3. When the frustum block 85 rises, it squeezes the oblique rod 810, causing the oblique rod 810 to drive the spline shaft 811 to slide in the spline groove 812 provided on the inner side of the straight plate 89. During the movement, the tension spring 813 is pulled. At this time, the spline shaft 811 drives the extrusion plate 9 to squeeze the inner side of the pump housing 4, completing the top of the pump housing 4. S4. When the frustum block 1 71 rises, it squeezes the inclined surface of the oblique head slide 73 and the spring 1 74. The oblique head slide 73 then drives the bottom plate 722 to move. The bottom plate 722 drives the rack 1 76 to move outside the gear 1 711, thereby driving the gear 1 711 to rotate. At this time, the rack 2 77 moves, and the rack 2 77 drives the straight tube 710 to move through the sleeve plate 79. S5. When the straight tube 710 moves, the contact rod 6 will first contact the outside of the pump casing 4. At this time, it will drive the rack 3 718 to move through the vertical plate 715 and the moving rod 716. The rack 3 718 will drive the gear 2 719 to rotate, causing the rotating shaft 721 to rotate. The rotating shaft 721 will drive the butterfly valve disc 720 to rotate. Therefore, before the arc-shaped groove plate 5 reaches the outside of the pump casing 4, the butterfly valve disc 720 will be opened according to the different sizes of the pump casing 4, thereby providing different sizes of cooling air for the pump casing 4. S6. At this time, the rotating table 3 will rotate, causing the pump casing body 4 and the support frame 2 to rotate synchronously. At this time, the welding machine on the workbench 1 will weld the pump casing body 4. The welded area will reach the arc groove plate 5 for uniform cooling.
[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0029] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims
1. An intelligent welding device for a slurry pump casing, comprising a workbench (1), a support frame (2) and a rotating table (3), characterized in that: A pump casing body (4) is provided on the rotating table (3), an arc-shaped slot plate (5) for conveying cold air is provided on the outer side of the pump casing body (4), a contact rod (6) is movably provided on the outer side of the pump casing body (4), a gas self-regulating mechanism (7) for driving the arc-shaped slot plate (5) and the contact rod (6) to move onto the pump casing body (4) is provided on the workbench (1), a plurality of extrusion plates (9) are movably provided on the inner side of the pump casing body (4), and an annular clamping mechanism (8) for driving the plurality of extrusion plates (9) to fit onto the inner side of the pump casing body (4) is provided on the rotating table (3).
2. The intelligent welding equipment for mud pump casing according to claim 1 is characterized in that: The annular clamping mechanism (8) comprises a connecting tube (81) arranged on a rotating table (3), a lower connecting ring (88) is arranged on the inner side of the connecting tube (81), a plurality of guide rods (84) are arranged on the top of the lower connecting ring (88), a guide plate (87) is movably sleeved on the outer sides of the plurality of guide rods (84), and an upper connecting ring (86) is arranged on the top of the plurality of guide rods (84).
3. The intelligent welding equipment for mud pump casing according to claim 2, characterized in that: A straight plate (89) is provided on the top of the upper connecting ring (86), a spline groove (812) is provided on the inner side of the straight plate (89), a spline shaft (811) for mounting the extrusion plate (9) is movably provided on the inner side of the spline groove (812), a tension spring (813) connected to the straight plate (89) is sleeved on the outer side of the spline shaft (811), and an oblique rod (810) is provided at the end of the spline shaft (811) that passes through the inner side of the straight plate (89).
4. The intelligent welding equipment for mud pump casing according to claim 3 is characterized in that: The inclined surface of the inclined rod (810) is movably provided with a second truncated cone block (85), the internal thread of the second truncated cone block (85) is connected to a threaded rod (83), and a motor (82) is provided between the bottom end of the threaded rod (83) and the inner bottom of the connecting tube (81).
5. The intelligent welding equipment for mud pump casing according to claim 4 is characterized in that: The gas self-regulating mechanism (7) includes a truncated cone block (71) threadedly connected to the outside of the threaded rod (83), a fixed plate (72) is provided on the top of the workbench (1), a side plate (75) is provided on the side of the fixed plate (72), an oblique head slide rod (73) movably provided on the inner side of the side plate (75) and in contact with the outer side of the truncated cone block (71), and a spring (74) connected to the side plate (75) is provided on the outer side of the oblique head slide rod (73).
6. The intelligent welding equipment for mud pump casing according to claim 5, characterized in that: The end surface of the oblique head slide (73) away from the truncated cone block (71) is provided with a bottom plate (722), and the side of the fixed plate (72) is rotatably provided with a gear (711), and the outer side of the gear (711) is meshedly connected with a rack (76) connected to the top of the bottom plate (722).
7. The intelligent welding equipment for mud pump casing according to claim 6, characterized in that: The side of the fixed plate (72) is movably provided with a rack 2 (77) meshing with the gear 1 (711), the top of the gear 1 (711) is provided with a sleeve plate (79), the inner side of the sleeve plate (79) is provided with a straight tube (710) connected to the inner side of the arc groove plate (5), the inner side of the arc groove plate (5) is movably inlaid with a plurality of rollers (713), and the end of the straight tube (710) is provided with a hose (78).
8. The intelligent welding equipment for mud pump casing according to claim 7, characterized in that: The outer side of the straight tube (710) is sleeved with a connecting tube (712) communicating with the inner side, the inner side of the connecting tube (712) is movably provided with a rotating shaft (721), the outer side of the rotating shaft (721) is sleeved with a butterfly valve disc (720), and the bottom end of the rotating shaft (721) passes through the connecting tube (712) and is sleeved with a gear 2 (719).
9. The intelligent welding equipment for mud pump casing according to claim 8, characterized in that: A limiting plate (714) is provided on the outer side of the straight tube (710), a movable rod (716) is movably provided on the inner side of the limiting plate (714), a vertical plate (715) connected to the contact rod (6) is provided at the end of the movable rod (716), a spring 2 (717) connected to the vertical plate (715) is sleeved on the outer side of the movable rod (716), and a rack 3 (718) meshing with a gear 2 (719) is provided at the end of the movable rod (716).
10. A method for intelligent welding of a slurry pump casing, using any one of the devices in claims 1-9, characterized in that: The following steps are included: S1. Place the arc-shaped slot plate (5) on top of the corresponding support frame (2), and then start the motor (82) to work; S2. When the motor (82) is working, it drives the threaded rod (83) to rotate. When the threaded rod (83) rotates, it drives the frustum block 2 (85) and the frustum block 1 (71) to rise at the same time; S3, when the frustum block 2 (85) rises, it squeezes the oblique rod (810), so that the oblique rod (810) drives the spline shaft (811) to slide in the spline groove (812) opened on the inner side of the straight plate (89), and pulls the tension spring (813) during the movement. At this time, the spline shaft (811) drives the extrusion plate (9) to squeeze the inner side of the pump housing body (4), completing the top of the pump housing body (4); S4, when the frustum block 1 (71) rises, it squeezes the inclined surface of the oblique head slide (73) and the spring 1 (74). At this time, the oblique head slide (73) drives the bottom plate (722) to move, and the bottom plate (722) drives the rack 1 (76) to move outside the gear 1 (711), thereby driving the gear 1 (711) to rotate. At this time, the rack 2 (77) will move, and the rack 2 (77) will drive the straight tube (710) to move through the sleeve plate (79); When the straight pipe (710) moves, the contact rod (6) will first contact the outside of the pump casing body (4). At this time, the rack three (718) will be driven to move through the vertical plate (715) and the moving rod (716). The rack three (718) will drive the gear two (719) to rotate, causing the rotating shaft (721) to rotate. The rotating shaft (721) will drive the butterfly valve disc (720) to rotate. Therefore, before the arc groove plate (5) reaches the outside of the pump casing body (4), the butterfly valve disc (720) will be opened according to the different sizes of the pump casing body (4), thereby providing different sizes of cooling air for the different sizes of the pump casing body (4); S6. At this time, the rotating table (3) will rotate, causing the pump casing body (4) and the support frame (2) to rotate synchronously. At this time, the welding machine on the workbench (1) will weld the pump casing body (4). The welded area will reach the arc groove plate (5) for uniform cooling.