Welding equipment for fan impeller machining

Abstract

The invention provides welding equipment for fan impeller machining, and relates to the technical field of welding equipment.The welding equipment is characterized in that a baffle ring is welded to the head end of a rotating shaft in a sleeving mode, and a key strip is arranged at the position, close to the baffle ring, of the rotating shaft; a wheel disc sleeves a shaft section, where the key bar is located, of the rotating shaft; in a normal state, the two L-shaped limiting plates are overturned inwards to be completely hidden in the rectangular mounting groove, the long plate sections of the L-shaped limiting plates are perpendicular to the center part of the wheel disc, and the short plate sections of the L-shaped limiting plates are parallel to the center part of the wheel disc. When the square sliding rod slides towards the rectangular mounting groove, the square sliding rod abuts against and makes contact with the short plate sections of the two L-shaped limiting plates, the two L-shaped limiting plates are outwards pushed and turned over, the long plate sections of the two L-shaped limiting plates abut against and make contact with the center of the wheel disc, and the wheel disc is blocked and limited. The wheel disc can be loosened and tightened only by pulling and inserting the loosening and tightening inserting shaft up and down and pulling and inserting the square sliding rod in a reciprocating mode, the wheel disc is disassembled, assembled and replaced, and loosening and tightening operation on the wheel disc is convenient, fast and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to welding equipment for processing fan impellers. Background Art

[0002] The fan impeller is an important part of the fan, and its manufacturing accuracy directly affects the working performance and service life of the fan. Traditional impeller manufacturing methods mainly include casting, forging and welding. Among them, welding has obvious advantages in small and medium batch production and the application of special materials due to its high flexibility and low cost. Specialized welding equipment is required when welding fan impellers.

[0003] Existing welding equipment usually uses a threaded component fastening method to position the impeller disk. Although this method is stable and reliable, when the disk is disassembled, assembled, or replaced, it is necessary to tighten the threaded component multiple times, which is cumbersome to operate and use. In particular, it is not suitable for use conditions where the disk needs to be frequently disassembled, assembled, or replaced. Summary of the invention

[0004] In view of this, the present invention provides a welding device for processing fan impellers to solve the problem that when the impeller is disassembled, assembled, or replaced, it is necessary to tighten the threaded parts multiple times forward and reversely, which is cumbersome to operate and use, and is particularly not suitable for use conditions where the impeller needs to be frequently disassembled, assembled, or replaced.

[0005] The technical solution proposed by the present invention is: a welding device for processing a fan impeller, specifically comprising: a vertical support rod and a rotating shaft; the top end of the vertical support rod is penetrated by a rotating shaft and rotatably installed, and the bottom end is welded with an I-shaped base; A square slide bar is slidably installed through the inner center of the rotating shaft, and a rectangular installation groove is opened at the head end of the rotating shaft, and two L-shaped limit plates are symmetrically installed at the tail end of the rectangular installation groove, and a vertical positioning shaft is welded at the middle position of the head end of the rectangular installation groove, and two tension springs are symmetrically hung between the vertical positioning shaft and the long plate sections of the two L-shaped limit plates; A retaining ring is welded on the head end part of the rotating shaft, and a key strip is arranged on the rotating shaft near the retaining ring; a wheel disc is arranged on the shaft section where the key strip is located, and the wheel disc is used to weld and install the blades of the fan; under normal conditions, the two L-shaped limit plates are flipped inward and completely hidden in the rectangular mounting groove, and the long plate section of the L-shaped limit plate is perpendicular to the center part of the wheel disc, and the short plate section is parallel to the center part of the wheel disc; when the square slide bar slides toward the rectangular mounting groove, it comes into contact with the short plate sections of the two L-shaped limit plates, and pushes the two L-shaped limit plates outward and flips them, so that the long plate sections of the two L-shaped limit plates come into contact with the center part of the wheel disc, thereby blocking and limiting the wheel disc.

[0006] Furthermore, An L-shaped support rod is welded to the top side of the tail end of the square sliding rod, and the head end of the L-shaped support rod is pushed through by a spring to slide and install an insertion shaft, and the tail end of the rotating shaft is separately provided with positioning holes, and the head end of the insertion shaft is plugged into the positioning hole.

[0007] Furthermore, A worm wheel is rotatably sleeved on the middle section of the rotating shaft, and two F-shaped mounting rods are symmetrically welded to the top end of the vertical support rod. A Z-shaped worm is rotatably mounted between the head ends of the two F-shaped mounting rods, and the Z-shaped worm is meshed with the worm wheel for transmission.

[0008] Furthermore, The middle part of the rotating shaft is threadedly fastened with a hexagonal insulating column arranged in a horizontal support, and a U-shaped electrical connection frame is slidably installed on the hexagonal insulating column through spring pushing, and two longitudinal support electrical connection plates are symmetrically welded at the open end of the U-shaped electrical connection frame, and the two longitudinal support electrical connection plates are in contact with the vertical support rods; An insulating force transmission frame is threadedly fastened to the tail end of the U-shaped power connection frame.

[0009] Furthermore, The invention comprises a welding machine, which is connected with a detachable grounding wire and a welding cable, wherein the head end of the welding cable is connected with a welding gun, and the head end of the grounding wire is threadedly fastened to a lower longitudinal supporting power board.

[0010] Furthermore, A square sliding sleeve is slidably mounted on the portion of the vertical support rod located above the hexagonal insulating column, an L-shaped pedal rod is welded to the bottom end of the hexagonal insulating column, and a connecting rod is connected between the square sliding sleeve and the tail end of the insulating force transmission frame.

[0011] Furthermore, The upright portion of the L-shaped pedal rod is slidably fitted with the upright support rod.

[0012] Furthermore, When the wheel disc is sleeved on the rotating shaft, the side of the wheel disc facing the retaining ring abuts against the retaining ring.

[0013] The invention provides a welding device for processing a fan impeller, which has the following beneficial effects: The present invention can complete the tightening and loosening of the wheel disc and the disassembly and replacement of the wheel disc by the simple action of inserting and pulling the tightening and loosening shaft up and down and the reciprocating inserting and pulling the square sliding rod. Compared with the existing technology of using threaded parts to position the wheel disc, the trouble of screwing the threaded parts forwards and backwards for multiple turns when loosening and loosening the wheel disc can be eliminated, and the trouble of using a wrench to tighten the threaded parts with a force knob can be eliminated. The tightening and loosening operation of the wheel disc is more convenient and efficient, which helps to indirectly improve the efficiency of disassembly and replacement of the wheel disc.

[0014] In addition, the U-shaped power connection frame is installed with movable sliding. When the wheel is disassembled, assembled, or replaced, the U-shaped power connection frame and the two longitudinal support power connection plates can be temporarily slid and separated from the vertical support rods to cut off the power to the grounding wire and the wheel. This prevents the wheel from being continuously energized during the disassembly, assembly, or replacement process, which may cause electric shock accidents. This helps to improve the safety of the wheel disassembly, assembly, or replacement operation as well as the safety of the overall operation and use of the welding equipment.

[0015] In addition, the L-shaped pedal rod extends downward, and its horizontal part is close to the I-beam base and the ground for foot pressure driving, which makes the square sleeve able to be driven by stepping on the foot, so that the power-off operation of the grounding wire and the wheel can be indirectly driven by the foot. Compared with traditional welding equipment that manually performs power-off operation on the grounding wire and the wheel, this can avoid occupying the hands and can free up the hands to deal with the disassembly, assembly and replacement of the wheel, which helps to indirectly improve the efficiency of disassembly, assembly and replacement of the wheel. Moreover, the form of driving the square sleeve by stepping on the foot, compared with the form of manually driving the square sleeve to slide down, can save the trouble of bending over and reaching out to grab the square sleeve, and the sliding drive operation of the square sleeve is simpler and more labor-saving, which helps to indirectly improve the convenience of the power-off operation of the grounding wire and the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture: Figure 1 The overall structural diagram of the present invention is shown; Figure 2 The schematic diagram of the installation position structure of the U-shaped electrical connection frame of the present invention is shown; Figure 3 It shows a schematic diagram of the installation position structure of the square sliding sleeve of the present invention; Figure 4 The present invention shows Figure 3 The enlarged structural diagram of part A in the middle; Figure 5 The present invention shows Figure 2 The enlarged structural diagram of part B in the middle; Figure 6 A schematic diagram of the rotating shaft structure of the present invention is shown; Figure 7 A schematic diagram of the inner side structure of a half-section of the rotating shaft of the present invention is shown; Figure 8 A schematic diagram of a disassembled state of the square slide bar of the present invention is shown; Reference numerals list 1. Vertical support rod; 101. I-shaped base; 102. Square sliding sleeve; 1021. L-shaped stepping rod; 1022. Connecting rod; 103. F-shaped mounting rod; 104. Z-shaped worm; 105. Hexagonal insulating column; 2. Roulette; 3. Rotating shaft; 301. Rectangular mounting groove; 3011. Vertical positioning shaft; 302. Key bar; 303. L-shaped limit plate; 304. Worm gear; 305. Retaining ring; 4. U-shaped power connection frame; 401. Insulation force transmission frame; 402. Longitudinal support power connection board; 5. Square slide bar; 501. Insert shaft; 6. Welding machine; 601. Grounding wire. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] refer to Figures 1 to 8 , Embodiment 1: The present invention provides a welding device for processing a fan impeller, comprising: a vertical support rod 1, an I-shaped base 101, a square sliding sleeve 102, an L-shaped stepping rod 1021, a connecting rod 1022, an F-shaped mounting rod 103, a Z-shaped worm 104, a hexagonal insulating column 105, a wheel disc 2, a rotating shaft 3, a rectangular mounting groove 301, a vertical positioning shaft 3011, a key bar 302, an L-shaped limiting plate 303, a worm wheel 304, a retaining ring 305, a U-shaped power connection frame 4, an insulating force transmission frame 401, a longitudinal support power connection plate 402, a square sliding rod 5, an inserting shaft 501, a welding machine 6 and a grounding wire 601; the top end of the vertical support rod 1 is penetrated by a rotating shaft 3 for rotation installation, and the bottom end is welded with an I-shaped base 101; A square slide bar 5 is slidably installed through the inner center of the rotating shaft 3, and a rectangular installation groove 301 is opened at the head end of the rotating shaft 3, and two L-shaped limit plates 303 are symmetrically installed at the tail end of the rectangular installation groove 301, and a vertical positioning shaft 3011 is welded at the middle position of the head end of the rectangular installation groove 301, and two tension springs are symmetrically hung between the vertical positioning shaft 3011 and the long plate sections of the two L-shaped limit plates 303; A retaining ring 305 is welded and sleeved on the head end of the rotating shaft 3, and a key bar 302 is arranged near the retaining ring 305 on the rotating shaft 3; a wheel disc 2 is sleeved on the shaft section of the rotating shaft 3 where the key bar 302 is located, and the wheel disc 2 is used for welding and installing the blades of the fan; under normal conditions, the two L-shaped limiting plates 303 are turned inward and completely hidden in the rectangular installation groove 301, and the long plate section of the L-shaped limiting plate 303 is perpendicular to the central part of the wheel disc 2, and the short plate section is parallel to the central part of the wheel disc 2; the rotating shaft 3 and the wheel disc 2 are connected by the key bar 302; The two L-shaped limit plates 303 are completely hidden inside the rectangular installation groove 301, which can facilitate the insertion, disassembly and assembly of the wheel disc 2 on the rotating shaft 3, and prevent the two L-shaped limit plates 303 from protruding from the rotating shaft 3 to block the normal insertion, disassembly and assembly of the wheel disc 2; When the square slide bar 5 slides toward the rectangular mounting groove 301, it comes into contact with the short plate sections of the two L-shaped limiting plates 303, and the two L-shaped limiting plates 303 are pushed and turned outward, so that the long plate sections of the two L-shaped limiting plates 303 come into contact with the center part of the wheel disc 2, thereby blocking and limiting the wheel disc 2. When the two L-shaped limiting plates 303 are pushed and turned outward, they flip over 90 degrees and their long plate sections remain parallel to the center part of the wheel disc 2. When the square slide bar 5 slides away from the rectangular mounting groove 301 and separates from the two L-shaped limiting plates 303, the two L-shaped limiting plates 303 in the outward flipped state lose the pushing and holding force of the square slide bar 5, and can be automatically flipped inward and reset by the rebound of the two tension springs.

[0021] Preferably, An L-shaped support rod is welded to the top side of the tail end of the square slide rod 5, and the head end of the L-shaped support rod is pushed through by a spring to slide and install an insertion shaft 501, and the tail end of the rotating shaft 3 is separately provided with a positioning hole, and the head end of the insertion shaft 501 is plugged into the positioning hole; The plug shaft 501 can be inserted and fixed in the use state of sliding toward the rectangular installation groove 301, so that the two L-shaped limit plates 303 are kept in the use state of turning outward to implement the blocking positioning of the wheel disc 2. The present invention only needs to push the tensioning plug shaft 501 up and down and reciprocate the square slide bar 5 to complete the tensioning of the wheel disc 2 and the disassembly and replacement of the wheel disc 2. Compared with the existing technology that uses threaded parts to position the wheel disc 2, it can save the trouble of screwing the threaded parts forward and backward for multiple turns when tightening the wheel disc 2, and saves the trouble of using a wrench to tighten the threaded parts with a force knob. The tightening and loosening operation of the wheel disc 2 is more convenient and efficient, which helps to indirectly improve the efficiency of disassembly and replacement of the wheel disc 2.

[0022] Preferably, A worm gear 304 is rotatably sleeved on the middle section of the rotating shaft 3, and two F-shaped mounting rods 103 are symmetrically welded to the top part of the vertical support rod 1, and a Z-shaped worm 104 is rotatably installed between the head ends of the two F-shaped mounting rods 103, and the Z-shaped worm 104 is meshed with the worm gear 304 for transmission. The worm gear 304 and the Z-shaped worm 104 together form a worm gear mechanism, through which the Z-shaped worm 104 can be rotated to mesh with the worm gear 304 and the rotating shaft 3 to rotate, and the angle of the wheel disc 2 in the circumferential direction can be adjusted, so that multiple blades can be welded to the outer circle of the circumference of the adjustment wheel disc 2 in sequence with equal spacing.

[0023] Preferably, When the roulette wheel 2 is mounted on the rotating shaft 3, the side of the roulette wheel 2 facing the retaining ring 305 is in contact with the retaining ring 305. When the two L-shaped limiting plates 303 block and limit the roulette wheel 2, the roulette wheel 2 is blocked and positioned between the retaining ring 305 and the long plate sections of the two L-shaped limiting plates 303.

[0024] Based on the first embodiment, the second embodiment: Preferably, The middle part of the rotating shaft 3 is threadedly fastened with a hexagonal insulating column 105 arranged in a horizontal support, and a U-shaped power connection frame 4 is slidably installed on the hexagonal insulating column 105 by spring pushing, and two longitudinal support power connection plates 402 are symmetrically welded at the open end of the U-shaped power connection frame 4, and the two longitudinal support power connection plates 402 are in contact with the vertical support rod 1; the tail end part of the U-shaped power connection frame 4 is threadedly fastened with an insulating force transmission frame 401.

[0025] Preferably, The welding machine 6 includes a detachable grounding wire 601 and a welding cable, wherein the head end of the welding cable is connected to a welding gun, and the head end of the grounding wire 601 is threadedly fastened to the lower longitudinal support power board 402 and the welding machine 6; The grounding wire 601 is connected to the wheel disc 2 through two longitudinal supporting boards 402, the vertical support rod 1 and the rotating shaft 3 in sequence; It is worth noting that the two longitudinal support boards 402, the U-shaped power connection frame 4, the vertical support rod 1 and the rotating shaft 3 are all made of conductive metal materials; The U-shaped power connection frame 4 is installed with movable sliding. When the wheel disc 2 is disassembled, assembled, or replaced, the U-shaped power connection frame 4 and the two longitudinal support power connection plates 402 can be temporarily slid and separated from the vertical support rod 1, and the grounding wire 601 and the wheel disc 2 are powered off to prevent the wheel disc 2 from being continuously energized during the disassembly, assembly, or replacement process, which may cause an electric shock accident. This helps to improve the safety of the disassembly, assembly, or replacement operation of the wheel disc 2 and the safety of the overall operation and use of the welding equipment.

[0026] Preferably, A square sliding sleeve 102 is slidably mounted on the portion of the vertical support rod 1 located above the hexagonal insulating column 105, an L-shaped stepping rod 1021 is welded to the bottom end of the hexagonal insulating column 105, and a connecting rod 1022 is connected between the square sliding sleeve 102 and the tail end of the insulating force transmission frame 401; the vertical portion of the L-shaped stepping rod 1021 is slidably fitted with the vertical support rod 1; The insulating force transmission frame 401, the connecting rod 1022 and the square sliding sleeve 102 are connected together to form a crank slider mechanism. Through this mechanism, the square sliding sleeve 102 that slides up and down can push and drive the insulating force transmission frame 401 and the U-shaped power connection frame 4 to slide back and forth along the hexagonal insulating column 105, driving the two longitudinal supporting power connection plates 402 to contact or separate from the vertical support rod 1, and when the U-shaped power connection frame 4 slides away from the vertical support rod 1, it compresses the spring on the hexagonal insulating column 105, and the spring on the hexagonal insulating column 105 is used to automatically rebound and drive the U-shaped power connection frame 4 to slide and reset toward the vertical support rod 1, and drive the square sliding sleeve 102 to slide and reset upward; the L-shaped pedal rod 1021 extends downwardly, and its horizontal part is close to the I-shaped base 101 and the ground for foot stepping Pressure drive, which makes it possible for the square sleeve 102 to be driven by stepping on the foot, so that the power-off operation of the grounding wire 601 and the wheel disc 2 can be indirectly driven by the foot. Compared with traditional welding equipment that manually performs the power-off operation on the grounding wire 601 and the wheel disc 2, this can avoid occupying the hands and can free up the hands to deal with the disassembly, assembly and replacement operations of the wheel disc 2, which helps to indirectly improve the efficiency of disassembly, assembly and replacement of the wheel disc 2. Moreover, the form of driving the square sleeve 102 by stepping on the foot, compared with the form of manually driving the square sleeve 102 to slide down, can save the trouble of bending over and reaching out to grab the square sleeve 102, and the driving operation of the square sleeve 102 to slide down is simpler and more labor-saving, which helps to indirectly improve the convenience of the power-off operation of the grounding wire 601 and the wheel disc 2.

[0027] Working principle: When in use, firstly, the wheel disc 2 is mounted and positioned on the rotating shaft 3, and then the tail end of the blade is butted against the outer circumference of the wheel disc 2, and then the welding gun is held to weld the weld formed by the blade and the wheel disc 2, and the Z-shaped worm 104 is rotated to mesh and drive the worm wheel 304 and the rotating shaft 3 to rotate, and the angle of the wheel disc 2 in the circumferential direction is adjusted, so that multiple blades are welded to the outer circumference of the adjusting wheel disc 2 in sequence with equal spacing; When the square slide bar 5 slides toward the head end of the rotating shaft 3, it comes into contact with the short plate sections of the two L-shaped limiting plates 303, and the two L-shaped limiting plates 303 are turned outward to make the long plate sections of the two L-shaped limiting plates 303 come into contact with the center part of the wheel disc 2, thereby blocking and limiting the wheel disc 2. When the two L-shaped limiting plates 303 are turned outward to make them flip 90 degrees and their long plate sections remain parallel to the center part of the wheel disc 2, when the square slide bar 5 moves away from the rotating shaft 3, When the rectangular mounting groove 301 is pulled and slid in the direction and separated from the two L-shaped limiting plates 303, the two L-shaped limiting plates 303 in the outwardly turned state lose the pushing and holding force of the square slide bar 5 and can be automatically turned inward and reset by the rebound of the two tension springs; the insertion shaft 501 can plug and fix the square slide bar 5 in the use state of sliding toward the rectangular mounting groove 301, so that the two L-shaped limiting plates 303 are kept in the use state of turning outward to abut against the wheel disc 2 for blocking and positioning; The grounding wire 601 is connected to the wheel disc 2 through two longitudinal supporting power boards 402, the vertical support rod 1 and the rotating shaft 3 in sequence. The U-shaped power connection frame 4 is installed by movable sliding. When the wheel disc 2 is disassembled, assembled and replaced, the U-shaped power connection frame 4 and the two longitudinal supporting power boards 402 can be temporarily slid and separated from the vertical support rod 1, and the grounding wire 601 and the wheel disc 2 are powered off to prevent the wheel disc 2 from being continuously energized during the disassembly, assembly and replacement process, which may cause an electric shock accident. The insulating force transmission frame 401, the connecting rod 1022 and the square sliding sleeve 102 are connected together to form a crank slider mechanism, through which the square sliding sleeve 102 that slides up and down can push and drive the insulating force transmission frame 401 and the C-shaped power connection frame 4 to slide back and forth along the hexagonal insulating column 105, drive the two longitudinal supporting power connection plates 402 to contact or separate from the vertical support rod 1, and when the C-shaped power connection frame 4 slides away from the vertical support rod 1, it compresses the spring on the hexagonal insulating column 105, and the spring on the hexagonal insulating column 105 is used to automatically rebound and drive the C-shaped power connection frame 4 to slide and reset toward the vertical support rod 1, and drive the square sliding sleeve 102 to slide and reset upward; the L-shaped pedal rod 1021 extends downwardly, and its horizontal part is close to the I-shaped base 101 and the ground for foot pressing and driving, so that the square sliding sleeve 102 can be driven by stepping down on the foot, so that the power-off operation of the grounding wire 601 and the wheel 2 can be indirectly driven by foot movement.

[0028] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0029] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0030] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A welding device for processing a fan impeller, comprising: A vertical support rod (1) and a rotating shaft (3); the rotating shaft (3) is rotatably mounted through the top end of the vertical support rod (1), and an I-shaped base (101) is welded to the bottom end; The invention is characterized in that a square slide bar (5) is slidably installed through the inner center position of the rotating shaft (3), and a rectangular installation groove (301) is opened at the head end of the rotating shaft (3), two L-shaped limit plates (303) are symmetrically installed at the tail end of the rectangular installation groove (301), and a vertical positioning shaft (3011) is welded at the middle position of the head end of the rectangular installation groove (301), and two tension springs are symmetrically hung between the vertical positioning shaft (3011) and the long plate sections of the two L-shaped limit plates (303); A retaining ring (305) is welded and sleeved on the head end portion of the rotating shaft (3), and a key bar (302) is arranged on the rotating shaft (3) at a position close to the retaining ring (305); a wheel disc (2) is sleeved on the shaft section of the rotating shaft (3) where the key bar (302) is located, and the wheel disc (2) is used for welding and installing the blades of the fan; in a normal state, the two L-shaped limit plates (303) are turned inwards and completely hidden in the rectangular installation groove (301), and the L-shaped limit plates (303) are ) are perpendicular to the central part of the wheel disc (2), and the short plate section is parallel to the central part of the wheel disc (2); when the square slide bar (5) slides toward the rectangular installation slot (301), it abuts against the short plate sections of the two L-shaped limit plates (303), and pushes and turns the two L-shaped limit plates (303) outward, so that the long plate sections of the two L-shaped limit plates (303) abut against the central part of the wheel disc (2), thereby blocking and limiting the wheel disc (2).

2. A fan impeller processing welding equipment according to claim 1, characterized in that: An L-shaped support rod is welded to the top side of the rear end of the square slide rod (5), and an insertion shaft (501) is slidably installed on the head end of the L-shaped support rod through which a spring pushes, and a positioning hole is separately provided at the rear end of the rotating shaft (3), and the head end of the insertion shaft (501) is plugged into and matched with the positioning hole.

3. The welding equipment for fan impeller processing according to claim 1, characterized in that: A worm wheel (304) is rotatably sleeved on the middle section of the rotating shaft (3), and two F-shaped mounting rods (103) are symmetrically welded to the top end of the vertical support rod (1), and a Z-shaped worm (104) is rotatably mounted between the head ends of the two F-shaped mounting rods (103), and the Z-shaped worm (104) is meshed with the worm wheel (304) for transmission.

4. The welding equipment for fan impeller processing according to claim 1, characterized in that: The middle part of the rotating shaft (3) is threadedly fastened with a hexagonal insulating column (105) arranged in a horizontal support, and a U-shaped power connection frame (4) is slidably mounted on the hexagonal insulating column (105) by means of a spring push, and two longitudinal support power connection plates (402) are symmetrically welded to the open end of the U-shaped power connection frame (4), and the two longitudinal support power connection plates (402) are in abutment with the vertical support rod (1); An insulating force transmission frame (401) is threadedly fastened to the rear end portion of the U-shaped electrical connection frame (4).

5. A welding device for fan impeller processing according to claim 4, characterized in that: The welding machine (6) comprises a detachable grounding wire (601) and a welding cable connected to the welding machine (6), wherein the head end of the welding cable is connected to a welding gun, and the head end of the grounding wire (601) is threadedly fastened to a lower longitudinal support power board (402).

6. The welding equipment for fan impeller processing according to claim 4, characterized in that: A square sliding sleeve (102) is slidably mounted on the portion of the vertical support rod (1) located above the hexagonal insulating column (105), an L-shaped stepping rod (1021) is welded to the bottom end of the hexagonal insulating column (105), and a connecting rod (1022) is connected between the square sliding sleeve (102) and the tail end portion of the insulating force transmission frame (401).

7. A fan impeller processing welding equipment according to claim 6, characterized in that: The upright portion of the L-shaped pedal rod (1021) is slidably fitted with the upright support rod (1).

8. The fan impeller processing welding equipment according to claim 1, characterized in that: When the wheel disc (2) is mounted on the rotating shaft (3), the side of the wheel disc (2) facing the retaining ring (305) is in abutment with the retaining ring (305).

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