A concentric welding correction device for fan impeller

Abstract

The present application discloses a concentric welding correction device for a fan impeller, which includes a bracket, a disc disposed on the bracket, a center groove disposed on the disc, a blade groove disposed on the disc, and a blanking mechanism for pushing the impeller out; further comprising an adjustment mechanism for pressing the blades against the center disc and a detection mechanism for detecting whether the blades remain horizontal; the adjustment mechanism includes an adjustment frame that is lifted and lowered on the bracket, an adjustment block disposed on the adjustment frame, a hammering assembly for hammering the adjustment frame, and a checking assembly for checking whether the center disc and the blades are in close contact; the disc is provided with an adjustment hole for sliding the adjustment block into the inner wall of the end of the blade groove away from the center groove, and the side of the adjustment block that contacts the blade is provided with an inclined surface. The present application has the effect of ensuring that the blades are in close contact with the center disc, thereby improving the quality of the finished impeller welding product.

Description

Technical Field

[0001] The present application relates to the technical field of fan impeller preparation, and in particular to a fan impeller concentric welding correction device. Background Art

[0002] The metal impellers currently used in fans generally include a center ring and blades fixed to the outside of the center ring. The blades are evenly distributed along the circumference of the center ring. The impeller is assembled by welding the blades concentrically to form an impeller. Such a design structure has sufficient durability, but such a design needs to ensure that the blades are coaxial. Under the existing technology, the welding coaxiality of the fan impeller is not accurate and often has errors, which ultimately affects the quality of the product and the actual use of the product. Therefore, during welding, the fan impeller needs to be corrected to ensure the coaxiality of the fan impeller.

[0003] In the related art, a Chinese patent application numbered CN202223524781.3 proposes a concentric welding correction device for a fan impeller, comprising a correction part, wherein the correction part is hollow and the inner cavity of the correction part is connected to a fixed disk, the top of the fixed disk is provided with a groove matched with the center ring, and the top is also provided with a movable plate matched with the impeller blades, the top of the correction part is provided with a blade slot matched with the impeller blades, and the movable plates are respectively arranged in the blade slots. By first inserting the center ring into the groove at the top of the fixed disk, and then placing the blade on the top of the movable plate, since the blade is matched with the blade slot, and the movable plates are respectively arranged in the blade slots, when the blade is at the top of the movable plate, the blade will be coaxially set, and the blade is limited by the movable plate and the blade slot, which can ensure that the blade is always coaxial, and achieve precise correction when welding the blade, thereby improving the welding quality of the product.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: after the center disk and the blades are aligned, the blades and the center disk are not tightly pressed against each other, which may easily lead to a gap when the center disk and the blades are welded, which will eventually affect the quality of the impeller product. Summary of the Invention

[0005] In order to improve the problem that the loose contact between the center disk and the blades affects the quality of the finished welded product, the present application provides a fan impeller concentric welding correction device.

[0006] The present application provides a fan impeller concentric welding correction device that adopts the following technical solution:

[0007] A fan impeller concentric welding correction device comprises a bracket, a disc arranged on the bracket, a center groove arranged on the disc, a blade groove arranged on the disc, and a blanking mechanism for pushing the impeller out;

[0008] It also includes an adjustment mechanism for pressing the blades against the center disk and a detection mechanism for detecting whether the blades remain horizontal;

[0009] The adjustment mechanism includes an adjustment frame that is lifted and lowered on a bracket, an adjustment block that is arranged on the adjustment frame, a hammering component for hammering the adjustment frame, and a checking component for checking whether the center disk and the blades are tightly pressed against each other;

[0010] The disc is provided with an adjustment hole for the adjustment block to slide into on the inner wall of the end portion of the blade slot away from the central slot, and a side of the adjustment block abutting against the blade is provided with an inclined surface.

[0011] Optionally, the hammering assembly includes a gravity block, a weight-increasing part for adding weight to the gravity block, and a reciprocating part for enabling the gravity block to reciprocally hammer the adjustment frame. The gravity block is raised and lowered on the bracket, and the gravity block hammers the adjustment frame when it falls freely.

[0012] Optionally, the reciprocating part includes a reciprocating electric push rod, a fixed pulley, a reciprocating rope, a reciprocating block and a reciprocating electromagnet. The reciprocating electric push rod is used to control the movement of the reciprocating electromagnet. One end of the reciprocating rope is connected to the gravity block, and the other end is connected to the reciprocating block after passing around the fixed pulley. The reciprocating electromagnet is used to adsorb the reciprocating block.

[0013] Optionally, the weight-increasing part includes a weight-increasing rod, multiple gravity rings, a weight-increasing electromagnet, a weight-increasing spring and a support rod, the weight-increasing rod is fixedly connected to the side wall of the gravity block, the support rod is fixed on the bracket, the multiple gravity rings are sequentially mounted on the outside of the support rod, the weight-increasing electromagnet adsorbs the gravity ring located at the head end, the weight-increasing spring is mounted on the outside of the support rod, and one end of the weight-increasing spring is fixedly connected to the bracket, and the other end abuts against the gravity ring located at the tail end.

[0014] Optionally, the viewing assembly includes a viewing frame, a viewing box and a trigger portion that are lifted and lowered on the bracket, the side walls of the viewing box are in contact with the outer wall of the center disk, the bottom of the viewing box is fixedly connected to an abutment box, the bottom of the abutment box is open and the side walls of the abutment box in contact with the center disk are lower than the other three side walls, the bottom wall of the viewing box is provided with a control port connected to the abutment box, the viewing box is provided with a control portion at the control port, and the viewing box is filled with reduced iron powder.

[0015] Optionally, the blanking mechanism includes a plurality of blanking plates lifted and lowered on the disc and a plurality of electric blanking push rods for realizing synchronous movement of the blanking plates, and the blanking plates are adapted to the blade slots.

[0016] Optionally, the trigger part includes a trigger box, a temperature sensor and a buzzer electrically connected to the temperature sensor, the blanking plate is provided with an installation port for installing the trigger box, the trigger box is provided with a funnel shape, and the temperature sensor is installed at the bottom of the trigger box.

[0017] Optionally, the detection mechanism includes a detection cylinder that is lifted and lowered on the bracket and an identification component for judging whether the liquid level in the detection cylinder is inclined, the detection cylinder is filled with liquid, and the detection cylinder is placed on the blade.

[0018] Optionally, the identification component includes a water sensor rotatably disposed in the detection cylinder and a power unit for realizing the rotation of the water sensor, and the water sensor is located above the liquid level in the detection cylinder.

[0019] Optionally, the power unit includes two magnet blocks, a gear ring, a gear and a power motor. A ring groove is provided in the detection cylinder. The magnet block is fixedly connected to the water sensor and the magnet block rotates and fits in the ring groove. The other magnet block is located outside the detection cylinder and the two magnet blocks are adsorbed on each other. The gear ring is fixedly connected to the magnet block located on the outer wall. The gear is rotatably provided in the detection cylinder. The power motor controls the rotation of the gear, and the ring teeth are meshed with the gear.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. In the initial state, the reciprocating electric push rod pulls the reciprocating block downward until the gravity block moves to the top of the adjustment frame. At this time, the reciprocating electromagnet separates from the reciprocating block, and the gravity block hammers the adjustment frame under the action of its gravity, thereby causing the adjustment frame and the adjustment block to move downward until the blade is pressed against the center disk;

[0022] 2. When the detection tube is placed on the blade, there is no force acting on it. If the blade is tilted, the power motor controls the gear to rotate. The gear drives the gear ring, which in turn rotates the external magnet. This in turn causes the internal magnet to rotate, and the water sensor begins to rotate around the inner wall of the detection tube. As soon as the water sensor detects water, the detection tube is tilted. It should be noted that in this embodiment, the blade must first be checked for horizontality before the connection between the blade and the center disk is tested.

[0023] 3. When the abutment box moves to the position abutting the blades, the three side walls of the abutment box are in abutment with the blades, and the shorter side wall of the abutment box is lower than the size of the other side walls, so the abutment box makes the blades contact with the center disk and flow out. After the solenoid valve is opened, the reduced iron powder falls on the blades and contacts the center disk. At this time, if there is a gap between the center disk and the blades, the reduced iron powder on the blades may be reduced. However, if the reduced iron powder does not fall from the position between the blades and the center disk, it is also assumed that the contact between the center disk and the blades is intact. The embodiment of the present application is mainly for if the reduced iron powder falls from the gap between the blades and the center disk and is oxidized, then it is determined that the contact between the blades and the center disk is incomplete. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0026] Figure 3 is a schematic diagram of a detection mechanism according to an embodiment of the present application;

[0027] Figure 4 It is a schematic diagram of the center disk, blades and abutment box of an embodiment of the present application.

[0028] 1. Bracket; 2. Disc; 3. Center slot; 4. Blade slot; 5. Center disc; 6. Blade; 7. Adjustment frame; 8. Adjustment block; 9. Adjustment hole; 10. Gravity block; 11. Control unit; 12. Weight-increasing rod; 13. Gravity ring; 14. Weight-increasing electromagnet; 15. Weight-increasing spring; 16. Support rod; 17. Reciprocating electric push rod; 18. Fixed pulley; 19. Reciprocating rope; 20. Reciprocating block; 21. Reciprocating electromagnet; 22. Perforation; 23. Inspection frame; 24. Inspection box; 25. Unloading plate; 26. Unloading electric push rod; 27. Trigger box; 28. Temperature sensor; 29. Buzzer; 30. Detection tube; 31. Water sensor; 32. Magnet block; 33. Gear ring; 34. Gear; 35. Power motor; 36. Abutment box. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The embodiment of the present application discloses a concentric welding correction device for a fan impeller. Figures 1-4, a fan impeller concentric welding correction device includes a bracket 1, a disc 2 arranged on the bracket 1, a center groove 3 arranged on the disc 2, a blade groove 4 arranged on the disc 2 and a blanking mechanism for pushing the impeller out; it also includes an adjusting mechanism for pressing the blade 6 against the center disc 5 and a detection mechanism for detecting whether the blade 6 remains horizontal; the blanking mechanism is used to push out the welded impeller, thereby facilitating blanking. The blanking mechanism includes a plurality of blanking plates 25 lifted and arranged on the disc 2 and a plurality of blanking electric push rods 26 for realizing synchronous movement of the blanking plates 25, the blanking plates 25 are adapted to the blade groove 4, the number of blanking plates 25 is adapted to the number of blades 6, and the blanking plates 25 are used to support the blades 6; the adjusting mechanism is used to press the blades 6 against the center disc 5, and the detection mechanism detects whether the blades 6 are horizontal after the blades 6 and the center disc 5 are pressed against each other. If the blades 6 are not in the horizontal direction, it will still affect the quality of the impeller product, so it is still necessary to adjust the blades 6 and press them against the center disc 5.

[0031] The adjusting mechanism includes an adjusting frame 7 which is lifted and lowered on the bracket 1, an adjusting block 8 which is arranged on the adjusting frame 7, a hammering assembly for hammering the adjusting frame 7, and a checking assembly for checking whether the center disk 5 and the blade 6 are tightly pressed together; the inner wall of the end of the blade groove 4 away from the center groove 3 of the disc 2 is provided with an adjusting hole 9 for sliding the adjusting block 8 into, and the side where the adjusting block 8 abuts against the blade 6 is provided with an inclined surface, the adjusting frame 7 is slidingly provided on the bracket 1, the adjusting block 8 is inserted into the adjusting hole 9, and the inclined surface of the adjusting block 8 faces the position of the blade 6. As the adjusting block 8 continues to move toward the adjusting hole 9, the thickness of the position where the inclined surface of the adjusting block 8 abuts against the blade 6 continues to increase, and then the blade 6 can be continuously squeezed toward the center disk 5 until the blade 6 and the center disk 5 are tightly pressed together, which is convenient for subsequent welding.

[0032] The hammering assembly includes a gravity block 10, a weight-increasing part for adding weight to the gravity block 10, and a reciprocating part for realizing the reciprocating hammering of the gravity block 10 on the adjusting frame 7. The gravity block 10 is raised and lowered on the bracket 1, and the gravity block 10 hammers the adjusting frame 7 when it falls freely. In the embodiment of the present application, the gravity block 10 is selected to hammer the adjusting frame 7 by falling naturally, and the electric push rod is not selected to drive the adjusting block 8. When the adjusting frame 7 is hammered, the adjusting frame 7 is subjected to a greater instantaneous impact force. At this time, the adjusting block 8 can overcome the resistance and push the blade 6, and push the blade 6 to the abutment position at the fastest speed. The electric push rod and other moving equipment need to push continuously to push the blade 6 to the abutment position, and the overall efficiency is not as high as that of gravity hammering.

[0033] The reciprocating part includes a reciprocating electric push rod 17, a fixed pulley 18, a reciprocating rope 19, a reciprocating block 20 and a reciprocating electromagnet 21. The reciprocating electric push rod 17 is used to control the movement of the reciprocating electromagnet 21. One end of the reciprocating rope 19 is connected to the gravity block 10, and the other end is connected to the reciprocating block 20 after passing through the fixed pulley 18. The reciprocating electromagnet 21 is used to adsorb the reciprocating block 20. The reciprocating electric push rod 17 is fixed on the bracket 1. The bracket 1 can also be provided with a through hole 22 for the reciprocating rope 19 to pass through. The main function of the through hole 22 is to limit the movement position of the reciprocating block 20. Since the gravity block 10 is in the process of falling, the reciprocating electromagnet 21 is used to absorb the reciprocating block 20. The reciprocating rope 19 moves rapidly toward the fixed pulley 18. If the reciprocating block 20 is not restricted, the reciprocating block 20 will move to the position of the fixed pulley 18, and the strong impact force may cause the fixed pulley 18 to have an accident; in the initial state, the reciprocating electric push rod 17 pulls the reciprocating block 20 downward until the gravity block 10 moves to the top of the adjusting frame 7. At this time, the reciprocating electromagnet 21 is separated from the reciprocating block 20, and the gravity block 10 hammers the adjusting frame 7 under the action of its gravity, thereby making the adjusting frame 7 and the adjusting block 8 move downward until the blade 6 is pressed against the center disk 5.

[0034] In order to further improve the efficiency, the weight of the gravity block 10 can be increased, thereby making the hammering more efficient. After the gravity block 10 falls from the same position, the adjustment block 8 can move the blade 6 to a position abutting the center disk 5 at one time. The weight-increasing part includes a weight-increasing rod 12, a plurality of gravity rings 13, a weight-increasing electromagnet 14, a weight-increasing spring 15 and a support rod 16. The weight-increasing rod 12 is fixedly connected to the side wall of the gravity block 10, the support rod 16 is fixed on the bracket 1, and the plurality of gravity rings 13 are sequentially sleeved on the support rod 1. 6, the weight-increasing electromagnet 14 adsorbs the gravity ring 13 at the head end, and the weight-increasing spring 15 is sleeved outside the support rod 16, and one end of the weight-increasing spring 15 is fixedly connected to the bracket 1, and the other end abuts against the gravity ring 13 at the tail end; in the embodiment of the present application, when the weight-increasing rod 12 moves to the position of the support rod 16, the weight-increasing rod 12 abuts against the end of the support rod 16 or the distance between the weight-increasing rod 12 and the support rod 16 is smaller than the thickness of the gravity ring 13, so that the gravity ring 13 can be smoothly sleeved outside the weight-increasing rod 12.

[0035] The movement of the reciprocating rope 19 is controlled by the reciprocating electric push rod 17, so that the weight-increasing rod 12 can be moved to the end position of the support rod 16. In the initial state, the weight-increasing spring 15 is in a compressed state, and the weight-increasing electromagnet 14 adsorbs the gravity ring 13 at the head end. At this time, the adsorption of the weight-increasing electromagnet 14 on the weight-increasing ring can be removed. Under the elastic force of the weight-increasing spring 15, the gravity ring 13 is pushed to the outside of the weight-increasing rod 12. According to multiple tests, setting two gravity rings 13 can achieve the effect of tightening the blade 6 and the center disk 5 by the gravity block 10 hitting the adjusting frame 7 once. When the first gravity ring 13 moves to the outside of the weight-increasing rod 12, the weight-increasing electromagnet 14 adsorbs the second gravity ring 13, and then the power to the weight-increasing electromagnet 14 is cut off. The second gravity ring 13 continues to be pushed to the outside of the weight-increasing rod 12, thereby achieving the effect of increasing the weight of the gravity block 10.

[0036] In order to ensure that the blades 6 and the center disk 5 are completely in contact with each other and there is no gap or the gap meets the setting, the embodiment of the present application screens the reduced iron powder of corresponding size. If the reduced iron powder passes through the gap between the blades 6 and the center disk 5, it proves that there is a gap between the center disk 5 and the blades 6, and it needs to be adjusted again; the viewing component includes a viewing frame 23, a viewing box 24 and a trigger part which are lifted and set on the bracket 1. The side wall of the viewing box 24 is in contact with the outer wall of the center disk 5. The bottom of the viewing box 24 is fixedly connected to the abutment box 36. The bottom of the abutment box 36 is open and abuts against The side wall of the box 36 that fits with the center disk 5 is lower than the other three side walls. The bottom wall of the inspection box 24 is provided with a control port connected to the abutment box 36. The inspection box 24 is provided with a control part 11 at the control port. The abutment box 36 is connected to a vacuum part. The inspection box 24 is filled with reduced iron powder. The side wall of the inspection frame 23 fits with the center disk 5, that is, the cross-section of the inspection frame 23 is set to be arc-shaped, and the length of the inspection frame 23 just matches the length of the blade 6 close to one end of the center disk 5. When the inspection box 24 moves to abut against the blade 6, the bottom end of the inspection box 24 just fits completely with the end of the blade 6.

[0037] The control unit 11 can use a solenoid valve. After the inspection box 24 needs to be vacuumed, the reduced iron powder is added to the inspection box 24. The abutment box 36 is located at the bottom of the inspection box 24. Before the reduced iron powder enters the abutment box 36, of course, the abutment box 36 can also be vacuumed to further reduce the probability of the reduced iron powder being reduced in the abutment box 36. When the abutment box 36 moves to the position of abutting with the blade 6, the three side walls of the abutment box 36 are in abutment with the blade 6. Since the shorter side wall of the abutment box 36 is lower than the size of the other side walls, the abutment box 36 The blades 6 are brought into contact with the center disk 5 and flow out. After the solenoid valve is opened, the reduced iron powder falls on the blades 6 and the position where the blades 6 are in contact with the center disk 5. At this time, if there is a gap between the center disk 5 and the blades 6, the reduced iron powder on the blades 6 may be reduced. However, if the reduced iron powder does not fall from the position between the blades 6 and the center disk 5, it is also assumed that the contact between the center disk 5 and the blades 6 is intact. The embodiment of the present application is mainly for if the reduced iron powder falls from the gap between the blades 6 and the center disk 5 and is oxidized, then it is determined that the contact between the blades 6 and the center disk 5 is incomplete.

[0038] The trigger part includes a trigger box 27, a temperature sensor 28 and a buzzer 29 electrically connected to the temperature sensor 28. The blanking plate 25 is provided with an installation port for installing the trigger box 27. The trigger box 27 is provided with a funnel shape, and the temperature sensor 28 is installed at the bottom of the trigger box 27. The top of the trigger box 27 is open, and the shape of the trigger box 27 is consistent with that of the viewing box 24. The trigger box 27 will not affect the horizontal state of the blade 6, that is, the top surface of the trigger box 27 is on the same horizontal plane as the plane where the blanking plate 25 is located. When the reduced iron powder falls on the blade 6, if there is a gap between the blade 6 and the center disk 5, the reduced iron powder will fall from the gap between the blade 6 and the center disk 5 into the trigger box 27. Since there is air in the trigger box 27, the oxygen in the air will react with the reduced iron powder for oxidation. Moreover, since the trigger box 27 is funnel-shaped, the reduced iron powder will continue to gather at the bottom after falling into the trigger box 27. If the reduced iron powder generates heat after the oxidation reaction, the temperature monitored by the temperature sensor 28 will increase instantly, and the buzzer 29 will be triggered to sound an alarm.

[0039] The detection mechanism includes a detection cylinder 30 that is lifted and lowered on the bracket 1 and an identification component for judging whether the liquid level in the detection cylinder 30 is tilted. The detection cylinder 30 is filled with liquid and placed on the blade 6. The liquid can be either grease or water. The detection cylinder 30 is a level instrument in that the level only measures the levelness of one direction, while the detection cylinder 30 filled with liquid can detect the levelness of the blade 6 in multiple directions. The identification component includes a water sensor 31 that is rotatably set in the detection cylinder 30 and a power unit for realizing the rotation of the water sensor 31. The water sensor 31 is located above the liquid level in the detection cylinder 30; that is, the water sensor 31 is just above the initial state of the liquid level. As long as the liquid level is tilted, the water sensor 31 can detect the tilt of the liquid level in the detection cylinder 30, that is, the blade 6 is tilted.

[0040] The power unit includes two magnet blocks 32, a gear ring 33, a gear 34 and a power motor 35. A ring groove is provided in the detection cylinder 30. The magnet block 32 is fixedly connected to the water sensor 31 and the magnet block 32 rotates and fits in the ring groove. The other magnet block 32 is located outside the detection cylinder 30 and the two magnet blocks 32 are attracted to each other. The gear ring 33 is fixedly connected to the magnet block 32 located on the outer wall. The gear 34 is rotatably provided in the detection cylinder 30. The power motor 35 controls the rotation of the gear 34, and the ring gear is meshed with the gear 34. The detection cylinder 30 can be lifted and lowered by a winch, that is, the upper end of the detection cylinder 30 is connected Hoisting rope, when the detection cylinder 30 is placed on the blade 6, there is no force on the detection cylinder 30. If the blade 6 is tilted, the power motor 35 controls the gear 34 to rotate. After the gear 34 drives the gear ring 33 to rotate, the magnet block 32 located on the outside starts to rotate, the internal magnet block 32 starts to rotate and the water sensor 31 starts to rotate around the inner wall of the detection cylinder 30. As long as the water sensor 31 detects water, the detection cylinder 30 is tilted. It should be noted that in this embodiment, it is necessary to first detect the level of the blade 6 and then detect the connection relationship between the blade 6 and the center disk 5.

[0041] The implementation principle of a fan impeller concentric welding correction device in an embodiment of the present application is: in the initial state, the reciprocating electric push rod 17 pulls the reciprocating block 20 downward until the gravity block 10 moves to the top of the adjusting frame 7. At this time, the reciprocating electromagnet 21 is separated from the reciprocating block 20, and the gravity block 10 hammers the adjusting frame 7 under the action of its gravity, thereby making the adjusting frame 7 and the adjusting block 8 move downward until the blade 6 is pressed against the center disk 5.

[0042] In order to further improve the efficiency, the weight of the gravity block 10 can be increased, thereby making the hammering more efficient. The reciprocating rope 19 is controlled to move by the reciprocating electric push rod 17, thereby making the weight-increasing rod 12 move to the end position of the support rod 16. In the initial state, the weight-increasing spring 15 is in a compressed state, and the weight-increasing electromagnet 14 adsorbs the gravity ring 13 at the head end. At this time, the adsorption of the weight-increasing electromagnet 14 on the weight-increasing ring can be removed. Under the elastic force of the weight-increasing spring 15, the gravity ring 13 is pushed to the outside of the weight-increasing rod 12. According to multiple tests, setting two gravity rings 13 can achieve the effect of tightening the blade 6 and the center disk 5 by hammering the adjusting frame 7 with the gravity block 10 once. When the first gravity ring 13 moves to the outside of the weight-increasing rod 12, the weight-increasing electromagnet 14 adsorbs the second gravity ring 13, and then the power to the weight-increasing electromagnet 14 is cut off. The second gravity ring 13 continues to be pushed to the outside of the weight-increasing rod 12, thereby achieving the effect of increasing the weight of the gravity block 10.

[0043] When the detection cylinder 30 is placed on the blade 6, there is no force acting on the detection cylinder 30. If the blade 6 is tilted, the power motor 35 controls the gear 34 to rotate. After the gear 34 drives the gear ring 33 to rotate, the external magnet block 32 starts to rotate, the internal magnet block 32 starts to rotate, and the water sensor 31 starts to rotate around the inner wall of the detection cylinder 30. As long as the water sensor 31 detects water, the detection cylinder 30 is tilted. It should be noted that in this embodiment, it is necessary to first detect the horizontality of the blade 6 and then detect the connection relationship between the blade 6 and the center disk 5.

[0044] When the abutment box 36 moves to the position abutting against the blade 6, the three side walls of the abutment box 36 are in abutment against the blade 6, and the shorter side wall of the abutment box 36 is lower than the size of the other side walls, so the abutment box 36 makes the blade 6 contact with the center disk 5 and flow out. After the solenoid valve is opened, the reduced iron powder falls on the blade 6 and the position where the blade 6 contacts the center disk 5. At this time, if there is a gap between the center disk 5 and the blade 6, the reduced iron powder on the blade 6 may be reduced. However, if the reduced iron powder does not fall from the position between the blade 6 and the center disk 5, it is also assumed that the contact between the center disk 5 and the blade 6 is intact. The embodiment of the present application is mainly for if the reduced iron powder falls from the gap between the blade 6 and the center disk 5 and the reduced iron powder is oxidized, then it is determined that the contact between the blade 6 and the center disk 5 is incomplete.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fan impeller concentric welding correction device, characterized by: It comprises a bracket (1), a disc (2) arranged on the bracket (1), a central groove (3) arranged on the disc (2), a blade groove (4) arranged on the disc (2), and a discharge mechanism for pushing out the impeller; It also includes an adjustment mechanism for pressing the blade (6) against the central disk (5) and a detection mechanism for detecting whether the blade (6) remains horizontal; The adjustment mechanism comprises an adjustment frame (7) which is lifted and lowered on the bracket (1), an adjustment block (8) which is arranged on the adjustment frame (7), a hammering assembly for hammering the adjustment frame (7), and a checking assembly for checking whether the central disk (5) and the blades (6) are tightly pressed against each other; The disc (2) is provided with an adjustment hole (9) for the adjustment block (8) to slide into the inner wall of the end of the blade groove (4) away from the central groove (3), and the side of the adjustment block (8) that contacts the blade (6) is provided with an inclined surface; The hammering assembly comprises a weight block (10), a weight-increasing part for adding weight to the weight block (10), and a reciprocating part for enabling the weight block (10) to reciprocately hammer the adjustment frame (7); the weight block (10) is lifted and arranged on the bracket (1); the weight block (10) hammers the adjustment frame (7) when it falls freely; the weight-increasing part comprises a weight-increasing rod (12), a plurality of gravity rings (13), a weight-increasing electromagnet (14), a weight-increasing spring (15), and a support rod (16); the weight-increasing The rod (12) is fixedly connected to the side wall of the gravity block (10), the support rod (16) is fixed on the bracket (1), and the plurality of gravity rings (13) are sequentially sleeved on the outside of the support rod (16). The weight-increasing electromagnet (14) adsorbs the gravity ring (13) at the head end. The weight-increasing spring (15) is sleeved on the outside of the support rod (16), and one end of the weight-increasing spring (15) is fixedly connected to the bracket (1), and the other end abuts against the gravity ring (13) at the tail end.

2. A fan impeller concentric welding correction device according to claim 1, characterized in that: The reciprocating part includes a reciprocating electric push rod (17), a fixed pulley (18), a reciprocating rope (19), a reciprocating block (20) and a reciprocating electromagnet (21). The reciprocating electric push rod (17) is used to control the movement of the reciprocating electromagnet (21). One end of the reciprocating rope (19) is connected to the gravity block (10), and the other end is connected to the reciprocating block (20) after passing through the fixed pulley (18). The reciprocating electromagnet (21) is used to adsorb the reciprocating block (20).

3. The fan impeller concentric welding correction device according to claim 2, characterized in that: The viewing assembly comprises a viewing frame (23) which is lifted and arranged on the bracket (1), a viewing box (24) and a trigger part. The side wall of the viewing box (24) is in contact with the outer wall of the center plate (5). The bottom of the viewing box (24) is fixedly connected with an abutment box (36). The bottom of the abutment box (36) is open and the side wall of the abutment box (36) in contact with the center plate (5) is lower than the other three side walls. The bottom wall of the viewing box (24) is provided with a control port which is in communication with the abutment box (36). The viewing box (24) is provided with a control part (11) at the control port. Reduced iron powder is contained in the viewing box (24).

4. The fan impeller concentric welding correction device according to claim 3, characterized in that: The blanking mechanism comprises a plurality of blanking plates (25) lifted and arranged on the disc (2) and a plurality of blanking electric push rods (26) for achieving synchronous movement of the blanking plates (25); the blanking plates (25) are adapted to the blade slots (4).

5. The fan impeller concentric welding correction device according to claim 4, characterized in that: The trigger part includes a trigger box (27), a temperature sensor (28) and a buzzer (29) electrically connected to the temperature sensor (28); the blanking plate (25) is provided with an installation opening for installing the trigger box (27); the trigger box (27) is provided with a funnel shape, and the temperature sensor (28) is installed at the bottom of the trigger box (27).

6. The fan impeller concentric welding correction device according to claim 2, characterized in that: The detection mechanism comprises a detection cylinder (30) which is lifted and lowered on the bracket (1) and an identification component for judging whether the liquid level in the detection cylinder (30) is inclined. The detection cylinder (30) is filled with liquid and is placed on a blade (6).

7. The fan impeller concentric welding correction device according to claim 6, characterized in that: The identification component comprises a water sensor (31) rotatably arranged in the detection cylinder (30) and a power unit for realizing the rotation of the water sensor (31), wherein the water sensor (31) is located above the liquid level in the detection cylinder (30).

8. The fan impeller concentric welding correction device according to claim 7, characterized in that: The power unit includes two magnet blocks (32), a gear ring (33), a gear (34) and a power motor (35). A ring groove is provided in the detection cylinder (30). The magnet block (32) is fixedly connected to the water sensor (31) and the magnet block (32) is rotatably adapted in the ring groove. The other magnet block (32) is located outside the detection cylinder (30) and the two magnet blocks (32) are adsorbed on each other. The gear ring (33) is fixedly connected to the magnet block (32) located on the outer wall. The gear (34) is rotatably provided in the detection cylinder (30). The power motor (35) controls the rotation of the gear (34). The gear ring (33) is meshed with the gear (34).

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