A universal welding tool for centrifugal impeller

Abstract

The present invention belongs to the field of welding processing technology, specifically, a universal welding tool for centrifugal impellers, including a protective barrel, the interior of the protective barrel is provided with processing equipment, and the exterior of the protective barrel is provided with a limiting device; the protective barrel includes a pressure-bearing cylinder shell, the front of the inner cavity of the pressure-bearing cylinder shell is fixedly connected with a transparent cover shell, and the inner cavity of the transparent cover shell is evenly provided with welding equipment. After the impeller is cooled, a large amount of moisture will adhere to its outer surface, so the deflection motors on both sides of the device will drive the central impeller to rotate centrifugally by repeatedly twisting the rotating substrate at high frequency, thereby throwing off the moisture attached to the outer surface of the impeller, and realizing the rapid drying of the impeller. At this time, the impeller is still in a vacuum environment, so it will not rust due to oxidation by the air, thereby avoiding the problem of easy rust on the impeller due to cooling.

Description

Technical Field

[0001] The invention belongs to the technical field of welding processing, in particular to a universal welding tool for a centrifugal impeller. Background Art

[0002] A centrifugal fan is a commonly used ventilation equipment, which is usually composed of an impeller, a volute and a protective wheel cover. As the core component of a centrifugal fan, the impeller is usually composed of a front disc, a rear disc and blades connected between the front and rear discs. Usually, the impeller and the wheel cover are connected together by welding. Therefore, welding of the centrifugal impeller is a key process in the manufacture of the impeller.

[0003] Since the centrifugal impeller is welded by vacuum brazing, the welding device needs to weld the impeller and the outer surface wheel cover under high temperature and high pressure vacuum conditions. However, the impeller loses contact with the air, so after welding, the cooling effect of the weld point of the impeller is very poor. Directly cooling the impeller by water cooling will cause the internal blades to come into contact with the water, making it more prone to wheel corrosion, so improvements are needed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: a universal welding tool for a centrifugal impeller, comprising a protective barrel, a processing device is arranged inside the protective barrel, and a limiting device is arranged outside the protective barrel;

[0005] The protective barrel comprises a pressure-bearing shell, a transparent cover shell is fixedly connected to the front of the inner cavity of the pressure-bearing shell, welding equipment is evenly arranged in the inner cavity of the transparent cover shell, transfer plates are symmetrically arranged on both sides of the bottom of the inner cavity of the pressure-bearing shell, and a recovery box is fixedly connected to the bottom end of the transfer plate, and the recovery box can directly recover the waste and wastewater inside the pressure-bearing shell through the hollow transfer plate;

[0006] The welding equipment comprises a threaded transfer rod, the front end of the threaded transfer rod is rotatably connected to the welding end rod, the rear end of the threaded transfer rod is fixedly connected to an extended outer rod, the end of the inner cavity of the extended outer rod away from the welding end rod is rotatably connected to a connecting guide rope, the outer surface of the threaded transfer rod is threadedly connected to an external torsion cylinder, the outer surface of the welding end rod is slidably connected to an internal plug, the external torsion cylinder controls the threaded transfer rod to advance and rotate along the thread groove in the middle of the inner cavity of the transparent cover; the internal internal plug limits the welding end rod from rotating with the threaded transfer rod and guides the welding end rod to slide in a directional manner;

[0007] The limiting device includes a counterweight base, the top of the counterweight base is fixedly connected to an adapter frame, the top of the adapter frame is fixedly connected to a control pull cylinder, and pressure pull plates are symmetrically arranged on the upper and lower sides of the inner wall of the control pull cylinder. The end of the pressure pull plate away from the control pull cylinder is fixedly connected to a vertical sleeve, and the bottom of the outer surface of the vertical sleeve is fixedly connected to a suction and filling shell. A compression soft sleeve is slidably connected to the axis of the inner cavity of the vertical sleeve, and the end of the compression soft sleeve away from the vertical sleeve is fixedly connected to a clamping suction cup. The suction and filling shells on the upper and lower sides can completely block the grooves at the corresponding positions of the pressure-bearing cylinder shell, and the interior of the pressure-bearing cylinder shell is suctioned and compressed through the air holes to form a vacuum area.

[0008] Furthermore, the processing equipment includes a welding impeller, and clamping devices are symmetrically arranged on the left and right sides of the outer surface of the welding impeller, a water cooling device is arranged in the middle of the inner wall of the clamping device, and an external fixing cylinder is fixedly connected to the side of the outer surface of the clamping device away from the welding impeller.

[0009] Furthermore, the number of the welding devices is three, the outer surface of the threaded transfer rod is rotatably connected to the middle of the inner cavity of the transparent cover shell, the outer surface of the control pull cylinder is fixedly connected to the outer surface of the transparent cover shell, and the outer surface of the built-in stuffing is fixedly connected to the inner wall of the transparent cover shell. The outer surface of the pumping and filling shell is slidably connected to the inner cavity of the pressure-bearing shell through a through cutout, the outer surface of the clamping suction cup is pressed against the axis of the outer surface of the welding impeller, and the inner cavity of the pumping and filling shell is connected to the inside of the pressure-bearing shell through an exchange port.

[0010] Furthermore, the clamping device includes a rotating base plate, a guide groove is symmetrically provided on one side of the inner cavity of the rotating base plate close to the welding impeller, a deflection motor is fixedly connected to the outer surface of the rotating base plate away from the welding impeller, and a guide slide shell is symmetrically provided on the outer surface of the rotating base plate through the guide groove, and an extension clamp is slidably connected to the inner wall of the guide slide shell. Since the welded impeller is divided into an impeller body and a cover shell, a matching extension clamp needs to be designed according to the appearance of the two. Although the extension clamps on the upper and lower sides have different shapes, they have the same function and can evenly clamp and limit the welded impeller.

[0011] Furthermore, the outer surface of the deflection motor is fixedly connected to one side of the inner cavity of the pressure-bearing cylinder shell, the axis of the deflection motor away from the welding impeller is fixedly connected to the top of the external fixed cylinder, and the inner cavity of the guide sliding shell is slidably connected to the outer surface of the rotating base plate through the guide sliding groove. The end of the extension clamping plate away from the guide sliding shell is evenly provided with bite rollers, the axis of the bite rollers is rotatably connected to the inner cavity of the extension clamping plate through a rotating rod, and the outer surface of the bite rollers and the outer surface of the welding impeller are pressed against each other.

[0012] Furthermore, the water cooling equipment includes a pressurized box, and a drainage tube is symmetrically arranged at the water inlet of the pressurized box, an infusion tube is fixedly connected to the axis of the inner cavity of the drainage tube, and compression tube sleeves are evenly arranged at the water outlet of the pressurized box, and the inner wall of the compression tube sleeve is slidably connected to a pull-in inner tube.

[0013] Furthermore, one end of the outer surface of the compression tube sleeve away from the pressurization box is fixedly connected to the outer surface of the lower extension splint through a traction pull plate, and one end of the outer surface of the pulled-in inner tube away from the pressurization box is fixedly connected to the outer surface of the upper extension splint through a traction pull plate, the outer surface of the pressurization box is fixedly connected to the middle part of the inner cavity of the rotating base plate, and one end of the infusion tube away from the drainage tube extends to the outside of the pressure tube shell.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The device can directly cool the welded impeller through the internal water cooling equipment. Since a large amount of water will adhere to the outer surface of the impeller after cooling, the deflection motors on both sides of the device will drive the central impeller to rotate centrifugally by repeatedly twisting the rotating substrate at high frequency, thereby throwing off the water attached to the outer surface of the impeller and achieving rapid drying of the impeller. At this time, the impeller is still in a vacuum environment, so it will not rust due to oxidation by the air, thereby avoiding the problem of easy rust on the impeller due to cooling.

[0016] 2. Since the impeller is always in a vacuum environment inside the pressure-bearing shell during the processing, the welding end rod is prone to rapid slip due to the external pressure when it is pushed forward. Therefore, the welding equipment as a whole is improved, and the welding end rod is pushed forward by using an external torsion barrel to twist the threaded transfer rod, so that the thrust effect of the external pressure on the welding end rod is greatly reduced, so that the welding end rod can slide stably without loss of control.

[0017] 3. The welding end rod of the device only needs to ensure that it can contact the circular surface of the impeller's joint. The clamped impeller can rotate relative to the welding end rod by rotating the axis, so that the welding end rod can perform comprehensive welding work on the impeller to avoid the problem of impeller leakage. Since the impeller rotates at a constant speed during welding, each point of the impeller is welded relatively evenly and flatly, thereby improving the actual welding quality of the impeller.

[0018] 4. The pipe body used for water spraying in the water-cooling equipment is composed of a compression sleeve and a pulled-in inner pipe, and under the control of the traction pull plate, the two pipe bodies will actually undergo elongation and compression deformation. When the extension clamps on both sides approach the impeller and clamp the impeller, they will automatically lengthen the output pipe of the pressurized box, so that the pulled-in inner pipe is closer to the weld of the impeller, so that the coolant sprayed from the end of the pulled-in inner pipe will not be too far away from the impeller, causing the problem of the entire impeller being sprayed with coolant, fundamentally reducing the amount of water residue on the impeller, shortening the time required for the impeller to dry, and thereby improving the overall welding efficiency of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention;

[0020] Figure 2 is a cross-sectional view of the present invention;

[0021] Figure 3 is a cross-sectional view of the protective barrel of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the welding equipment of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the limiting device of the present invention;

[0024] Figure 6 is a cross-sectional view of the processing equipment of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the clamping device of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the water cooling device of the present invention.

[0027] In the figure: 1. Protective barrel; 11. Pressure-bearing cylinder shell; 12. Transparent cover shell; 13. Transfer plate; 14. Recovery box; 4. Welding equipment; 41. Threaded transfer rod; 42. Welded end rod; 43. Extended outer rod; 44. Connecting guide rope; 45. Internal stuffing; 46. External torsion cylinder; 3. Limiting equipment; 31. Counterweight base; 32. Adapter frame; 33. Control pull cylinder; 34. Pressure pull plate; 35. Vertical sleeve; 36. Pumping and filling shell; 37. Pressure Shrink sleeve; 38, clamping suction cup; 2, processing equipment; 21, external fixing cylinder; 22, clamping equipment; 23, water cooling equipment; 24, welding impeller; 221, rotating base plate; 222, deflection motor; 223, guide slide; 224, guide slide shell; 225, extension splint; 226, bite roller; 231, pressurizing box; 232, drainage tube; 233, infusion tube; 234, compression tube sleeve; 235, pull in inner tube; 236, traction pull plate. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0029] Example 1, please refer to Figure 1-Figure 6 The present invention provides a technical solution: a universal welding tool for a centrifugal impeller, comprising a protective barrel 1, a processing device 2 is arranged inside the protective barrel 1, and a limiting device 3 is arranged outside the protective barrel 1;

[0030] The protective barrel 1 includes a pressure-bearing shell 11, a transparent cover shell 12 is fixedly connected to the front of the inner cavity of the pressure-bearing shell 11, the inner cavity of the transparent cover shell 12 is evenly provided with welding equipment 4, and transfer plates 13 are symmetrically provided on both sides of the bottom of the inner cavity of the pressure-bearing shell 11, and a recovery box 14 is fixedly connected to the bottom end of the transfer plate 13, and the recovery box 14 can directly recover the waste and wastewater inside the pressure-bearing shell 11 through the hollow transfer plate 13;

[0031] The welding device 4 includes a threaded transfer rod 41, the front end of the threaded transfer rod 41 is rotatably connected to a welding end rod 42, the rear end of the threaded transfer rod 41 is fixedly connected to an extended outer rod 43, the end of the extended outer rod 43 that is away from the welding end rod 42 is rotatably connected to a connecting guide rope 44, the outer surface of the threaded transfer rod 41 is threadedly connected to an external torsion barrel 46, the outer surface of the welding end rod 42 is slidably connected to an internal plug 45, the external torsion barrel 46 controls the threaded transfer rod 41 to advance and rotate along the thread groove in the middle of the inner cavity of the transparent cover 12; the internal internal plug 45 limits the welding end rod 42 from rotating with the threaded transfer rod 41 and guides the welding end rod 42 to slide in a directional manner;

[0032] The limiting device 3 includes a counterweight base 31, the top of the counterweight base 31 is fixedly connected to an adapter frame 32, the top of the adapter frame 32 is fixedly connected to a control pull cylinder 33, and pressure pull plates 34 are symmetrically arranged on the upper and lower sides of the inner wall of the control pull cylinder 33. The end of the pressure pull plate 34 away from the control pull cylinder 33 is fixedly connected to a vertical sleeve 35, and the bottom of the outer surface of the vertical sleeve 35 is fixedly connected to a suction and filling shell 36. A compression soft sleeve 37 is slidably connected to the axis of the inner cavity of the vertical sleeve 35, and a clamping suction cup 38 is fixedly connected to the end of the compression soft sleeve 37 away from the vertical sleeve 35. The suction and filling shells 36 on the upper and lower sides can completely block the grooves at the corresponding positions of the pressure-bearing cylinder shell 11, and perform suction and pressure work on the inside of the pressure-bearing cylinder shell 11 through the air holes to form a vacuum area.

[0033] The processing equipment 2 includes a welding impeller 24 , and clamping devices 22 are symmetrically arranged on the left and right sides of the outer surface of the welding impeller 24 . A water cooling device 23 is arranged in the middle of the inner wall of the clamping device 22 . An external fixing cylinder 21 is fixedly connected to one side of the outer surface of the clamping device 22 away from the welding impeller 24 .

[0034] There are three welding devices 4, the outer surface of the threaded transfer rod 41 is rotatably connected to the middle of the inner cavity of the transparent cover shell 12, the outer surface of the control pull cylinder 33 is fixedly connected to the outer surface of the transparent cover shell 12, and the outer surface of the built-in filler 45 is fixedly connected to the inner wall of the transparent cover shell 12. The outer surface of the suction and pressure filling shell 36 is slidably connected to the inner cavity of the pressure-bearing cylinder shell 11 through a through cutout, the outer surface of the clamping suction cup 38 and the axis of the outer surface of the welding impeller 24 are pressed against each other, and the inner cavity of the suction and pressure filling shell 36 is connected to the inside of the pressure-bearing cylinder shell 11 through an exchange port.

[0035] When the device is used to weld the impeller, the impeller body and the cover shell are first transferred to the inside of the protective barrel 1 through the limiting device 3 on the back, and the upper and lower pressure pull plates 34 are pulled apart by controlling the pull cylinder 33, and then the clamping suction cups 38 on both sides are pulled out from the inside of the pressure cylinder shell 11, and then the cover shell is adsorbed by the upper clamping suction cup 38, and the impeller body is adsorbed by the lower clamping suction cup 38, and then the pressure pull plates 34 on both sides are pulled in, and then the pressure filling shell 36 is inserted into the inner cavity of the pressure cylinder shell 11, and the compression soft sleeve 37 is stamped and extended by the vertical sleeve 35, so that the impeller body and the cover shell are gradually connected together.

[0036] During the process of the impeller sleeve being joined, the clamping devices 22 on both sides clamp and limit the sides of the cover shell and the impeller body respectively. When the impeller is merged, the adsorption capacity of the upper and lower clamping suction cups 38 on the impeller decreases, and then the vertical sleeve 35 recovers the compressed soft sleeve 37, and the vacuum filling shell 36 can vacuum the inside of the pressure-bearing shell 11 which has been closed at this time through the air holes, so as to form a vacuum environment inside the pressure-bearing shell 11.

[0037] Use the welding equipment 4 in front to weld the combined impeller joints, and the welding process can be observed through the transparent cover 12. The inner wall of the external torsion cylinder 46 drives the threaded transfer rod 41 to rotate clockwise, so that the threaded transfer rod 41 spirals into the interior of the pressure-bearing shell 11, and then pushes the welding end rod 42 to gradually approach the impeller. Due to the blocking effect of the built-in filler 45, external gas will not enter the pressure-bearing shell 11 through the gap between the welding equipment 4 and the transparent cover 12, thereby ensuring that there will be no leakage when the welding end rod 42 performs welding on the impeller gap.

[0038] Example 2, please refer to Figure 1-Figure 8The present invention provides a technical solution: on the basis of embodiment 1, the clamping device 22 includes a rotating base plate 221, and a guide groove 223 is symmetrically provided on the side of the inner cavity of the rotating base plate 221 close to the welding impeller 24, and a deflection motor 222 is fixedly connected to the side of the outer surface of the rotating base plate 221 away from the welding impeller 24. The outer surface of the rotating base plate 221 is symmetrically provided with a guide sliding shell 224 through the guide groove 223, and the inner wall of the guide sliding shell 224 is slidably connected with an extension clamping plate 225. Since the welded impeller is divided into an impeller body and a cover shell, it is necessary to design a matching extension clamping plate 225 according to the shapes of the two. Although the extension clamping plates 225 on the upper and lower sides have different shapes, they have the same function and can evenly clamp and limit the welding impeller 24.

[0039] The outer surface of the deflection motor 222 is fixedly connected to one side of the inner cavity of the pressure-bearing cylinder shell 11, and the axis of the deflection motor 222 away from the welding impeller 24 is fixedly connected to the top of the external fixed cylinder 21, and the inner cavity of the guide sliding shell 224 is slidably connected to the outer surface of the rotating base plate 221 through the guide slide groove 223. The end of the extension clamping plate 225 away from the guide sliding shell 224 is evenly provided with a bite roller 226, and the axis of the bite roller 226 is rotatably connected to the inner cavity of the extension clamping plate 225 through a rotating rod, and the outer surface of the bite roller 226 and the outer surface of the welding impeller 24 are pressed against each other.

[0040] The water cooling device 23 includes a pressurizing box 231, at the water inlet of the pressurizing box 231 a drainage tube 232 is symmetrically arranged, at the axis of the inner cavity of the drainage tube 232 a liquid infusion tube 233 is fixedly connected, at the water outlet of the pressurizing box 231 a compression tube sleeve 234 is evenly arranged, at the inner wall of the compression tube sleeve 234 a pull-in inner tube 235 is slidably connected.

[0041] One end of the outer surface of the compression tube sleeve 234 away from the pressurizing box 231 is fixedly connected to the outer surface of the lower extension splint 225 through a traction plate 236, and the end of the outer surface of the inner tube 235 away from the pressurizing box 231 is fixedly connected to the outer surface of the upper extension splint 225 through a traction plate 236. The outer surface of the pressurizing box 231 is fixedly connected to the middle part of the inner cavity of the rotating base plate 221, and the end of the infusion tube 233 away from the drainage tube 232 extends to the outside of the pressure cylinder shell 11.

[0042] The guide sliding shells 224 on the upper and lower sides slide along the guide sliding grooves 223 on the outer surface of the rotating base plate 221 in a directional manner to ensure that the extended clamping plate 225 can face the outer surface of the impeller. Then, the guide sliding shells 224 push the extended clamping plate 225 on the inner wall outward, and the upper extended clamping plate 225 is clamped with the cover shell part, and the lower extended clamping plate 225 is clamped with the outer surface of the impeller. Figure 6 shown.

[0043] When welding, the extended clamping plate 225 for clamping the impeller will twist the impeller through the interlocking roller 226 on the inner wall, causing the impeller and the welding end rod 42 to rotate relative to each other. Since the welding end rod 42 rotates around the axis, the welding end rod 42 can cyclically sweep across the welding surface of the impeller, thereby ensuring that the impeller will not have a welding leak problem.

[0044] For the water cooling device 23, it replenishes cooling water to the interior of the pressurized box 231 through the drainage tube 232 and the infusion tube 233 on both sides, and then the pressurized box 231 pulls the cooling water into the end of the inner tube 235 through the pressurized effect and sprays it into the welding gap of the impeller. As the impeller continues to rotate under the control of the interlocking roller 226, the cooling water can also cool all the welding positions of the impeller.

[0045] The end of the compression tube sleeve 234 is fixedly connected to the extension clamp 225 located below through the traction plate 236, and the end of the pulled-in inner tube 235 is fixedly connected to the extension clamp 225 located above through the traction plate 236. Therefore, when the extension clamps 225 on both sides approach the impeller and clamp the impeller, they will automatically lengthen the output pipe of the pressurizing box 231, so that the pulled-in inner tube 235 is closer to the weld of the impeller.

[0046] After cooling, the deflection motor 222 will twist the rotating substrate 221 to perform reciprocating deflection motion, and then drive the impeller to reciprocate through the extension clamp 225. Through centrifugal motion, the coolant remaining on the impeller will be thrown away, thereby achieving the effect of removing moisture and drying the impeller. The thrown water and residual welding slag will be recycled by the recycling box 14 through the transfer plate 13 under the pressure cylinder shell 11.

[0047] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A universal welding tool for a centrifugal impeller, comprising a protective barrel, a processing device is arranged inside the protective barrel, and a limiting device is arranged outside the protective barrel; The protective barrel includes a pressure-bearing shell, a transparent cover shell is fixedly connected to the front of the inner cavity of the pressure-bearing shell, welding equipment is evenly arranged in the inner cavity of the transparent cover shell, transfer plates are symmetrically arranged on both sides of the bottom of the inner cavity of the pressure-bearing shell, and a recovery box is fixedly connected to the bottom end of the transfer plate; The welding equipment comprises a threaded transfer rod, the front end of the threaded transfer rod is rotatably connected to the welding end rod, the rear end of the threaded transfer rod is fixedly connected to the extended outer rod, the end of the inner cavity of the extended outer rod away from the welding end rod is rotatably connected to the connecting guide rope, the outer surface of the threaded transfer rod is threadedly connected to an external torsion cylinder, and the outer surface of the welding end rod is slidably connected to the internal filler; The position limiting device includes a counterweight base, the top of the counterweight base is fixedly connected to an adapter frame, the top of the adapter frame is fixedly connected to a control pull cylinder, pressure pull plates are symmetrically arranged on the upper and lower sides of the inner wall of the control pull cylinder, the end of the pressure pull plate away from the control pull cylinder is fixedly connected to a vertical sleeve, the bottom of the outer surface of the vertical sleeve is fixedly connected to a pumping and filling shell, the axis of the inner cavity of the vertical sleeve is slidably connected to a compression soft sleeve, and the end of the compression soft sleeve away from the vertical sleeve is fixedly connected to a clamping suction cup; The processing equipment includes a welding impeller, and clamping devices are symmetrically arranged on the left and right sides of the outer surface of the welding impeller, a water cooling device is arranged in the middle of the inner wall of the clamping device, and an external fixing cylinder is fixedly connected to one side of the outer surface of the clamping device away from the welding impeller; The clamping device includes a rotating base plate, a guide groove is symmetrically provided on one side of the inner cavity of the rotating base plate close to the welding impeller, a deflection motor is fixedly connected to the outer surface of the rotating base plate away from the welding impeller, a guide slide shell is symmetrically provided on the outer surface of the rotating base plate through the guide groove, and an extension clamp is slidably connected to the inner wall of the guide slide shell.

2. The universal welding tool for centrifugal impeller according to claim 1, characterized in that: There are three welding devices. The outer surface of the threaded transfer rod is rotatably connected to the middle of the inner cavity of the transparent cover shell. The outer surface of the control pull cylinder is fixedly connected to the outer surface of the transparent cover shell. The outer surface of the built-in filler is fixedly connected to the inner wall of the transparent cover shell.

3. The universal welding tool for centrifugal impeller according to claim 2, characterized in that: The outer surface of the pressure-extraction filling shell is slidably connected to the inner cavity of the pressure-bearing shell through a through cut, the outer surface of the clamping suction cup and the axis of the outer surface of the welding impeller are squeezed against each other, and the inner cavity of the pressure-extraction filling shell is connected to the interior of the pressure-bearing shell through an exchange port.

4. The universal welding tool for centrifugal impeller according to claim 1, characterized in that: The outer surface of the deflection motor is fixedly connected to one side of the inner cavity of the pressure cylinder shell, the axis of the deflection motor away from the welding impeller is fixedly connected to the top of the external fixed cylinder, and the inner cavity of the guide sliding shell is slidably connected to the outer surface of the rotating base plate through the guide sliding groove.

5. The universal welding tool for centrifugal impeller according to claim 4, characterized in that: One end of the extension splint away from the guide sliding shell is evenly provided with bite rollers, the axis of the bite rollers is rotatably connected to the inner cavity of the extension splint through a rotating rod, and the outer surface of the bite rollers and the outer surface of the welding impeller are pressed against each other.

6. The universal welding tool for centrifugal impeller according to claim 5, characterized in that: The water cooling equipment includes a pressurized box, at the water inlet of the pressurized box, drainage tubes are symmetrically arranged, at the axis of the inner cavity of the drainage tubes, an infusion tube is fixedly connected, at the water outlet of the pressurized box, compression sleeves are evenly arranged, and the inner wall of the compression sleeves is slidably connected with a pull-in inner tube.

7. The universal welding tool for centrifugal impeller according to claim 6, characterized in that: The end of the outer surface of the compression tube sleeve away from the pressurization box is fixedly connected to the outer surface of the lower extension splint through a traction pull plate, and the end of the outer surface of the inner tube away from the pressurization box is fixedly connected to the outer surface of the upper extension splint through a traction pull plate. The outer surface of the pressurization box is fixedly connected to the middle part of the inner cavity of the rotating base plate, and the end of the infusion tube away from the drainage tube extends to the outside of the pressure tube shell.

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