Impeller welding tool for centrifugal blower

Abstract

The invention discloses an impeller welding tool for a centrifugal blower. The impeller welding tool comprises a rack, a support rotationally arranged on the rack and a workbench rotationally arranged on the support. The workbench is provided with a fixing column used for sleeving an impeller, a horizontal positioning device used for positioning the impeller in the horizontal direction and a vertical positioning device used for limiting movement of the impeller in the vertical direction. The horizontal positioning device comprises a plurality of horizontal rods movably arranged in the fixing column and a power mechanism used for achieving movement of the horizontal rods. The fixing column is provided with a plurality of horizontal holes, and the horizontal rods penetrate out of the horizontal holes and then abut against the inner circumferential wall of the impeller. The impeller limiting device has the effect of limiting impellers of different specifications, and normal operation of multi-angle welding work is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of impeller welding, and in particular to an impeller welding tool for a centrifugal blower. Background Art

[0002] At present, the impeller refers to both the wheel with moving blades and the general term for the wheel and the rotating blades installed on it. The impeller can be classified according to the shape and opening and closing conditions. As a key component of the fan, the rationality of the impeller structure directly affects the overall performance of the fan. During the operation, the impeller rotates to drive the gas flow, thereby realizing the gas discharge. The impeller is mainly welded by the wheel disc, wheel cover, long and short blades, and inlet ring. According to the fan design requirements, a certain number of long and short blades are evenly welded between the wheel disc and the wheel cover. The space for welding operation is small, so the placement of the impeller is very important.

[0003] In the related art, a Chinese patent with patent publication number CN115846992A proposes an impeller welding tool for a centrifugal blower, comprising: a base; a fixing mechanism, the fixing mechanism is arranged on the outside of the base; an adjusting mechanism, the adjusting mechanism is arranged between the fixing mechanism and the base; wherein the adjusting mechanism comprises: a supporting assembly, the supporting assembly is connected to the base; a control assembly, the control assembly is connected to the supporting assembly and to the fixing mechanism; a rotating assembly, the rotating assembly is arranged between the fixing mechanism and the control assembly; a positioning assembly, the positioning assembly is connected to the supporting assembly and to the control assembly. By setting the adjusting mechanism, the impeller being welded can be adjusted at multiple angles, thereby facilitating the operator to find the best welding position, ensuring the welding quality, reducing the operator's workload, and improving the welding processing efficiency of the impeller.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: since the inner diameters of impellers of different specifications are all different, when the impeller is mounted on the outside of the lifting column, the inner diameter of the impeller does not match the outer diameter of the lifting column, which may easily cause the impeller to shift in position along the radial direction of the lifting column. Even if a pressure rod and a positioning wheel are used to press the upper surface of the impeller, it is impossible to ensure that the impeller does not shift in position along the radial direction of the lifting column. Summary of the invention

[0005] In order to improve the problem that the tooling is not suitable for impellers of different specifications, the present application provides an impeller welding tooling for a centrifugal blower.

[0006] The impeller welding tooling for a centrifugal blower provided in the present application adopts the following technical solution: An impeller welding tool for a centrifugal blower, comprising a frame, a bracket rotatably arranged on the frame, and a workbench rotatably arranged on the bracket; The workbench is provided with a fixing column for sleeve-mounting the impeller, a horizontal positioning device for positioning the impeller in the horizontal direction, and a vertical positioning device for limiting the vertical movement of the impeller; The horizontal positioning device includes a plurality of horizontal rods movably arranged in the fixed column and a power mechanism for realizing the movement of the plurality of horizontal rods; the fixed column is provided with a plurality of horizontal holes, and the horizontal rods abut against the inner circumferential wall of the impeller after passing through the horizontal holes.

[0007] Optionally, the power mechanism includes multiple power screw sleeves, multiple power screw rods, and a transmission assembly that moves at intervals with the vertical positioning device, the power screw sleeve is threadedly connected to the power screw rod, the power screw sleeve is rotationally connected to the inner cavity of the fixed column, the end of the power screw rod is fixedly connected to the tail end of the horizontal rod, the horizontal hole is set as a square hole, the horizontal rod is slidingly adapted to the horizontal hole, and the front end of the horizontal rod is initially located on the inner wall of the horizontal hole.

[0008] Optionally, the vertical positioning device includes a vertical ring slidably arranged on the outside of the fixed column, a plurality of vertical rods movably arranged on the circumferential wall of the vertical ring, a driving mechanism for realizing the pop-up of the vertical rods, a circumferential positioning mechanism for limiting the circumferential movement of the impeller, and a power mechanism for controlling the movement of the vertical ring along the vertical direction, the power mechanism is transmission-connected to the transmission assembly, the circumferential wall of the vertical ring is provided with a plurality of vertical grooves, and the vertical ring is movably arranged in the vertical grooves.

[0009] Optionally, the driving mechanism includes a first electromagnet and a torsion spring, the vertical ring is rotatably arranged in the vertical groove, and the rotation axis direction of the vertical ring and the vertical groove is vertically arranged, the outer diameter of the vertical ring is smaller than the inner diameter of the impeller, the rotation axis of the vertical rod and the vertical groove are both located at the symmetry plane position of the side wall corresponding to the vertical ring, that is, located in the middle position of the vertical groove, the vertical rod moves until it abuts against the upper surface of the impeller, the first electromagnet is arranged at one end of the vertical groove corresponding to the movable end of the vertical rod and is used to adsorb the vertical rod, and the torsion spring is used to connect the vertical rod to the inner wall of the vertical groove.

[0010] Optionally, the power mechanism includes a screw rod and a power block, the screw rod is rotatably connected to the top of the inner cavity of the fixed column, the screw rod is spirally matched with the power block, a power groove is penetrated through the side wall of the fixed column, and the power block is fixedly connected to the inner wall of the vertical ring after extending out of the power groove.

[0011] Optionally, the transmission assembly includes multiple driven bevel gears, a driving bevel gear, a transmission motor, and an adjustment part for realizing the staggered movement of the driving bevel gear and the vertical ring, the driving bevel gear is rotatably set on the inner wall of the fixed column, the driven bevel gear is fixed on the outer wall of the power screw sleeve, the driving bevel gear is meshed and connected with the multiple driven bevel gears, the axial direction of the driving bevel gear is vertically set, and the axial direction of the driven bevel gear is horizontally set.

[0012] Optionally, the adjusting part includes a driving disk, a rotating disk, an adjusting electromagnet and a friction transmission clutch which is lifted and lowered on the driving disk, the driving disk is fixedly connected to the output end of the transmission motor, the rotating disk is fixedly connected to the active bevel gear, the rotating disk cover is arranged on the outside of the driving disk, the driving disk is rotatably connected to the tail end of the screw rod and the adjusting electromagnet is arranged on the peripheral wall of the screw rod, the adjusting electromagnet is used to adsorb the driving disk, the friction transmission clutch and the rotating disk are transmitted by friction, the middle part of the active bevel gear is arranged with a cavity, and the screw rod is connected to the driving disk after passing through the active bevel gear.

[0013] Optionally, the circumferential positioning mechanism includes an adhesive component arranged on the vertical rod and a detection component for determining whether the impeller is horizontal, the detection component includes a plurality of detection rods elastically arranged in the vertical rod, a detection electromagnet, a detection block and a plurality of proximity switches, the bottom end of the detection rod abuts against the upper surface of the impeller, the detection electromagnet adsorbs the side wall of the detection rod, the detection block is fixed on the side wall of the detection rod, the vertical rod is provided with a plurality of detection holes, the detection rod is elastically arranged in the detection hole, and when the proximity switch abuts against the detection block, the proximity switch controls an adjacent first electromagnet to cut off power, that is, the plurality of proximity switches control the next first electromagnet to cut off power in turn along one direction.

[0014] Optionally, the bonding assembly includes an operating cavity, a plurality of leather bags movably disposed in the operating cavity, a processing portion for puncturing the leather bags, and a softening portion, the leather bags are filled with glue, and the softening portion is used to quickly soften the glue.

[0015] Optionally, the processing portion includes a puncture needle and barbs, the puncture needle is arranged obliquely and along the positive direction of movement of the leather bag, the barbs are fixed on the puncture needle, and the barbs are inclined in the opposite direction to the puncture needle.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. If the horizontal rod needs to move, the control adjustment electromagnet is separated from the driving disk, and the lead screw is connected to the driving disk in rotation. At this time, the friction transmission clutch is controlled to move to contact the bottom of the rotating disk. At this time, the rotating disk and the driving disk are rotated together through friction. When the active bevel gear rotates clockwise, the horizontal rod passes through the horizontal hole. During the movement of the horizontal rod, if the impeller is not coaxial with the fixed column, the horizontal rod also plays a role in pushing the impeller. Under the action of the abutment between the four horizontal rods and the inner circumferential wall of the impeller and the extrusion friction force, the impeller is restricted in its radial direction. 2. When the vertical ring needs to start moving downward, the control adjustment electromagnet is in contact with the driving disk, the driving disk rotates together with the lead screw, and the friction transmission clutch is separated from the rotating disk. When the transmission motor rotates counterclockwise, the power block drives the vertical ring to move downward, and the vertical rod pops outward until it moves to abut against the upper surface of the impeller; when the vertical rod fits the surface of the impeller, the adsorption of the detection electromagnet on the detection rod is removed. Under the elastic force of the spring, if the detection rod does not move, the vertical rod fits the upper surface of the impeller. As long as the detection rod moves downward, the proximity switch will separate from the detection block, and the first electromagnet will be triggered to separate from the vertical rod, and the next vertical rod will not pop out. According to the specific shape of the impeller, as long as the impeller is not flat, this embodiment sets at least two vertical rods that will not fit the upper surface of the impeller. At this time, the vertical rod will definitely not pop out. At this time, it proves that the impeller is not level and needs to be adjusted. When all four vertical rods pop out, it proves that the impeller is level. 3. When glue bonding is required, the winding rope pulls the leather bag to move into the operating cavity until it contacts the thorn. The thorn is set at an angle to pierce the leather bag until the thorn passes through the leather bag. Finally, the winding rope is pulled back. Under the action of the barbs, the leather bag is cut open, and the glue quickly flows to the operating cavity and the surrounding walls of the vertical rod and the impeller. In this embodiment, it is assumed that the winding rope will not be bonded. After the glue is cured, the bonding effect of the vertical rod and the upper surface of the impeller can be achieved, and the circumferential restriction effect of the impeller can be achieved. If it is necessary to separate the vertical rod and the impeller, the softening capsule is pulled into the operating cavity. Similarly, under the action of the thorn and the barb, the softening capsule is divided, and the softener is retained in the glue position. At this time, the connection between the vertical rod and the impeller is loosened, and the vertical ring and the vertical rod can be separated from the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic diagram of a fixed column, a horizontal positioning device and a vertical positioning device in an embodiment of the present application; Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0018] 1. The present invention relates to a plurality of gears, wherein the plurality of gears are connected to each other through the gear train, and the plurality of gears are connected to each other through the gear train. The plurality of gears are connected to each other through the gear train. The plurality of gears are connected to each other through the gear train. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] The present application embodiment discloses an impeller welding tool for a centrifugal blower. Figure 1-Figure 3 An impeller welding tool for a centrifugal blower includes a frame 1, a bracket 2 rotatably arranged on the frame 1, and a workbench 3 rotatably arranged on the bracket 2; the bracket 2 and the workbench 3 are both controlled by a servo motor, the bracket 2 rotates in a horizontal direction, and the workbench 3 rotates in a vertical direction, that is, the rotation axis of the bracket 2 is vertically arranged, and the rotation axis of the workbench 3 is horizontally arranged, so as to realize a multi-angle rotation effect of the impeller during the welding process.

[0021] The workbench 3 is provided with a fixed column 4 for sleeved impeller, a horizontal positioning device for positioning the impeller in the horizontal direction, and a vertical positioning device for limiting the vertical movement of the impeller; in the embodiment of the present application, the size of the fixed column 4 is smaller than the minimum size of the batch specification of the impeller, thereby ensuring that the impeller can be sleeved on the outside of the fixed column 4, the cross-section of the fixed column 4 can be set to be circular or square, and the present embodiment is preferably square. The horizontal positioning device limits the radial direction of the impeller, and the vertical positioning device is used to limit the axial direction of the impeller.

[0022] The horizontal positioning device includes a plurality of horizontal rods 5 movably arranged in the fixed column 4 and a power mechanism for realizing the movement of the plurality of horizontal rods 5; the fixed column 4 is provided with a plurality of horizontal holes 6, and the horizontal rods 5 abut against the inner wall of the impeller after passing through the horizontal holes 6. The horizontal rods 5 are arranged as four or two, preferably four, and the interior of the fixed column 4 is arranged as a cavity, and the horizontal hole 6 is communicated with the inner cavity. The power mechanism includes a plurality of power screw sleeves 8, a plurality of power screws 7 and a transmission component that moves at intervals with the vertical positioning device. The power screw sleeves 8 are threadedly connected with the power screw 7, and the power screw sleeves 8 are rotationally connected with the inner cavity of the fixed column 4. The end of the power screw 7 is fixedly connected with the tail end of the horizontal rod 5, and the horizontal hole 6 is arranged as a square hole. The horizontal rod 5 is slidingly adapted to the horizontal hole 6. The front end of the horizontal rod 5 is located on the inner wall of the horizontal hole 6 in the initial state. Similarly, the power screw sleeves 8 and the power screw 7 are also arranged as four. The transmission component is used to realize the vertical limit of the impeller and the horizontal limit is staggered. In this embodiment, the radial direction of the power screw sleeve 8 is first restricted and then the axial direction of the impeller is limited.

[0023] First, the impeller sleeve is arranged outside the fixed column 4. Of course, the power screw sleeve 8 can also be driven to rotate through the transmission assembly. Since the rotation of the horizontal rod 5 is limited by the horizontal hole 6, the power screw sleeve 8 drives the power screw 7 to move along the length direction of the horizontal hole 6, thereby realizing the driving effect of the power screw 7, and the reverse extension lines of the four horizontal rods 5 intersect at one point and are located on the axis of the fixed column 4. Therefore, under the positioning effect of the four horizontal rods 5, the axis of the impeller is coaxial with the axis of the fixed column 4, thereby ensuring the accuracy of welding. In addition, during the movement of the horizontal rod 5, if the impeller is not coaxial with the fixed column 4, the horizontal rod 5 also plays a role in pushing the impeller, and under the abutment between the four horizontal rods 5 and the inner circumferential wall of the impeller and the extrusion friction force, the impeller is restricted along its radial direction.

[0024] The transmission assembly includes a plurality of driven bevel gears 16, a driving bevel gear 17, a transmission motor 18, and an adjustment portion for realizing the staggered movement of the driving bevel gear 17 and the vertical ring 9. The driving bevel gear 17 is rotatably arranged on the inner wall of the fixed column 4, and the driven bevel gear 16 is fixed to the outer wall of the power screw sleeve 8. The driving bevel gear 17 is meshed and connected with the plurality of driven bevel gears 16. The axial direction of the driving bevel gear 17 is vertically arranged and the axial direction of the driven bevel gear 16 is horizontally arranged. The driven bevel gear 16 is also arranged in four, and the driven bevel gear 16 is arranged in an annular shape and fixed to the outer wall of the power screw sleeve 8. The number of teeth of the active bevel gear 17 is greater than the sum of the number of teeth of the four driven bevel gears 16, that is, the four driven bevel gears 16 are evenly spaced and distributed outside the axis of the active bevel gear 17; as long as the transmission motor 18 controls the rotation of the active bevel gear 17 through the adjustment part, the four driven bevel gears 16 can rotate simultaneously, and the present embodiment sets four power screw sleeves 8 to cooperate with four corresponding power screw rods 7 respectively. When the active bevel gear 17 rotates clockwise, the power screw rod 7 drives the horizontal rod 5 to move outward. Similarly, when the active bevel gear 17 moves counterclockwise, the horizontal rod 5 moves inward.

[0025] The vertical positioning device includes a vertical ring 9 slidably arranged on the outside of the fixed column 4, a plurality of vertical rods 10 movably arranged on the peripheral wall of the vertical ring 9, a driving mechanism for realizing the pop-up of the vertical rod 10, a circumferential positioning mechanism for limiting the circumferential movement of the impeller, and a power mechanism for controlling the vertical ring 9 to move along the vertical direction. The power mechanism is connected to the transmission assembly in a transmission manner. The peripheral wall of the vertical ring 9 is provided with a plurality of vertical grooves 11. The vertical ring 9 is movably arranged in the vertical grooves 11. The cross-section of the vertical ring 9 is also set to be square. Similarly, the cross-sectional dimension of the vertical ring 9 is smaller than the minimum inner diameter of this batch of impellers so that the vertical ring 9 can move freely. The central axis of the vertical ring 9 is coaxially arranged with the central axis of the fixed column 4; at the same time, the length dimension of the vertical rod 10 is set to be larger than the maximum inner diameter of this batch of impellers, that is, to ensure that the vertical rod 10 can fit with the upper end surface of the impeller.

[0026] The driving mechanism includes a first electromagnet 12 and a torsion spring 13. The vertical ring 9 is rotatably arranged in the vertical groove 11, and the rotation axis direction of the vertical ring 9 and the vertical groove 11 is vertically arranged. The outer diameter of the vertical ring 9 is smaller than the inner diameter of the impeller. The rotation axis of the vertical rod 10 and the vertical groove 11 are both located at the symmetric plane position of the corresponding side wall of the vertical ring 9, that is, located in the middle position of the vertical groove 11. The vertical rod 10 moves to abut against the upper surface of the impeller. The first electromagnet 12 is arranged at one end of the vertical groove 11 corresponding to the movable end of the vertical rod 10 and is used to adsorb the vertical rod 10. The torsion spring 13 is used to connect the vertical The depth of the vertical groove 11 is greater than the thickness of the vertical rod 10, and the vertical rod 10 can be completely located in the vertical groove 11, thereby preventing the vertical rod 10 from affecting the installation of the impeller. When the vertical rod 10 needs to be extended, it is only necessary to disconnect the adsorption of the first electromagnet 12 and the vertical rod 10. Under the elastic force of the torsion spring 13, the vertical rod 10 swings outward until it swings to the inner wall of the end of the vertical groove 11. At this time, the vertical rod 10 is perpendicular to the surface where the vertical ring 9 is located. At the same time, the four vertical rods 10 are also symmetrical in pairs relative to the central axis of the vertical ring 9.

[0027] The power mechanism includes a screw rod 14 and a power block 15. The screw rod 14 is rotatably connected to the top of the inner cavity of the fixed column 4. The screw rod 14 and the power block 15 are spirally matched. A power groove is provided through the side wall of the fixed column 4. After the power block 15 extends out of the power groove, it is fixedly connected to the inner wall of the vertical ring 9. The cross-section of the power groove is also set to a rectangle. The rotation of the power block 15 is restricted during the rotation of the screw rod 14. The power block 15 drives the vertical ring 9 to move along the vertical direction. The power groove can be set to multiple, and only the position where the power block 15 is connected to the inner wall of the vertical ring 9 is increased. In this embodiment, the rotation of the screw rod 14 and the movement of the active bevel gear 17 need to be staggered, that is, the active bevel gear 17 moves first, and after the horizontal rod 5 is extended, the vertical ring 9 can be separated from the impeller. Finally, after the vertical rod 10 is retracted, the welded impeller is taken out.

[0028] The adjusting part includes a driving disk 19, a rotating disk 20, an adjusting electromagnet 21, and a friction transmission clutch 22 which is lifted and lowered on the driving disk 19. The driving disk 19 is fixedly connected to the output end of the transmission motor 18, the rotating disk 20 is fixedly connected to the active bevel gear 17, the rotating disk 20 is covered on the outside of the driving disk 19, the driving disk 19 is rotatably connected to the tail end of the screw rod 14, and the adjusting electromagnet 21 is arranged on the peripheral wall of the screw rod 14, the adjusting electromagnet 21 is used to adsorb the driving disk 19, the friction transmission clutch 22 and the rotating disk 20 are driven by friction, the middle part of the active bevel gear 17 is provided with a cavity, and the screw rod 14 passes through the active bevel gear 17. It is connected to the driving disk 19, and the friction transmission clutch 22 and the rotating disk 20 are both arranged in an annular shape. The rotating disk 20 is located below the active electromagnet, and the friction sensor clutch is arranged above the driving disk 19 through the electric push rod lifting. In this embodiment, a transmission motor 18 is arranged instead of using two power sources to respectively control the rotation of the screw rod 14 and the active bevel gear 17. Firstly, it is to save costs, and secondly, the mechanical structure transmission is more stable. Finally, if the screw rod 14 also needs to be provided with a power source, then in the process of sleeve-mounting the impeller, it is also necessary to pass through the power source located above the fixed column 4 for controlling the screw rod 14, which is easy to damage the power source.

[0029] If the horizontal rod 5 needs to move, the control adjustment electromagnet 21 is separated from the driving disk 19, and the screw rod 14 is connected to the driving disk 19 for rotation. At this time, the friction transmission clutch 22 is controlled to move to contact with the bottom of the rotating disk 20. At this time, the rotating disk 20 and the driving disk 19 are rotated together through friction force. When the active bevel gear 17 rotates clockwise, the horizontal rod 5 passes through the horizontal hole 6. When the vertical ring 9 needs to start moving downward, the control adjustment electromagnet 21 is contacted with the driving disk 19, and the driving disk 19 rotates together with the screw rod 14, and the friction transmission clutch 22 is separated from the rotating disk 20. When the transmission motor 18 rotates counterclockwise, the power block 15 drives the vertical ring 9 to move downward. Similarly, when the horizontal rod 5 and the vertical ring 9 need to return to the initial position, the above operation is reversed, and this embodiment will not be repeated.

[0030] The circumferential positioning mechanism includes an adhesive component movably arranged on the vertical rod 10 and a detection component for judging whether the impeller is horizontal. The detection component includes a plurality of detection rods 23 elastically arranged in the vertical rod 10, a detection electromagnet 24, a detection block 25 and a plurality of proximity switches 26. The bottom end of the detection rod 23 abuts against the upper surface of the impeller, the detection electromagnet 24 adsorbs the side wall of the detection rod 23, the detection block 25 is fixed to the side wall of the detection rod 23, the vertical rod 10 is provided with a plurality of detection holes 27, the detection rod 23 is elastically arranged in the detection hole 27, and the proximity switch When the switch 26 abuts against the detection block 25, the proximity switch 26 controls an adjacent first electromagnet 12 to cut off the power, that is, multiple proximity switches 26 control the next first electromagnet 12 to cut off the power in turn along one direction. When the impeller is placed, due to the friction between the horizontal rod 5 and the impeller and the need for the horizontal rod 5 to push the impeller for adjustment, the impeller may not be in a horizontal state, so it is necessary to adjust whether the impeller is horizontal. The upper end of the detection hole 27 is closed and the lower end is open, and the end of the detection rod 23 is connected to the corresponding end of the detection hole 27 by a spring 28.

[0031] When the detection rod 23 is in the initial state, it is adsorbed by the detection electromagnet 24, and the bottom end of the detection rod 23 is located in the detection hole 27, and the spring 28 is compressed. At this time, the proximity switch 26 is also in contact with the detection block 25. When the vertical rod 10 is in contact with the surface of the impeller, the adsorption of the detection electromagnet 24 on the detection rod 23 is removed. Under the elastic force of the spring 28, if the detection rod 23 does not move, the vertical rod 10 is in contact with the upper surface of the impeller. As long as the detection rod 23 moves downward, the proximity switch 26 will be separated from the detection block 25, and the first electromagnet 12 will be triggered to separate from the vertical rod 10, and the next vertical rod 10 will not pop out. According to the specific shape of the impeller, as long as the impeller is uneven, this embodiment sets at least two vertical rods 10 that will not be in contact with the upper surface of the impeller. At this time, the vertical rod 10 will definitely not pop out. At this time, it proves that the impeller is not level and needs to be adjusted. When all four vertical rods 10 pop out, it proves that the impeller is level.

[0032] The horizontal rod 5 limits the radial direction of the impeller, and the vertical rod 10 limits the axial direction of the impeller, but the circumferential rotation of the impeller is not limited. The bonding assembly is used to realize that the vertical rod 10 also limits the circumferential rotation of the impeller. The bonding assembly includes an operating chamber 29, a plurality of leather bags 30 movably arranged in the operating chamber 29, a processing part and a softening part for puncturing the leather bags 30, the leather bags 30 are filled with glue, and the softening part is used to quickly soften the glue. The operating chamber 29 is also opened on the side facing the impeller. The operating chamber An operating chamber 29 is provided at both ends of 29, and a winding roller 31 is rotatably provided in the two operating chambers 29. A plurality of leather bags 30 are connected by a winding rope 32, and the two ends of the winding rope 32 are respectively fixedly connected to the peripheral walls of the two winding rollers 31. The rotation of the winding roller 31 is realized by a winding motor. In the initial state, there will be no leather bag 30 in the operating chamber 29. Only when it is necessary to bond the vertical rod 10 to the impeller, it is necessary to control the rotation of the winding roller 31 and move the leather bag 30 into the operating chamber 29.

[0033] The processing part includes a needle 33 and a barb 34. The needle 33 is tilted and tilted along the positive direction of the movement of the leather bag 30. The barb 34 is fixed on the needle 33. The barb 34 is tilted in the opposite direction to the needle 33. The softening part includes a plurality of softening capsules 35. The softening capsules 35 are filled with a softener for softening glue. The softening capsules 35 are spaced apart from the leather bag 30, and the softening capsules 35 are also tied to the winding rope 32. When glue bonding is required, the winding rope 32 pulls the leather bag 30 to move into the operating chamber 29 until it contacts the needle 33. The needle 33 is tilted and can be inserted into the leather bag 30 until the needle 33 passes through the leather bag 30. Finally, the winding rope is pulled. 32 is pulled back, and under the action of the barbs 34, the leather bag 30 is cut open, and the glue quickly flows to the operating chamber 29 and the peripheral walls of the vertical rod 10 and the impeller. In this embodiment, it is assumed that the winding rope 32 will not be bonded. After the glue is cured, the bonding effect of the vertical rod 10 and the upper surface of the impeller can be achieved, thereby achieving the circumferential restriction effect on the impeller. If it is necessary to separate the vertical rod 10 and the impeller, the softening bag 35 is pulled into the operating chamber 29 at this time. Similarly, under the action of the needle 33 and the barbs 34, the softening bag 35 is split, and the softener is retained in the glue position. At this time, the connection between the vertical rod 10 and the impeller is loosened, and the vertical ring 9 and the vertical rod 10 can be separated from the impeller.

[0034] The implementation principle of the impeller welding tooling for a centrifugal blower in the embodiment of the present application is as follows: if the horizontal rod 5 needs to move, the control adjustment electromagnet 21 is separated from the drive disk 19, and the screw rod 14 is rotationally connected with the drive disk 19. At this time, the friction transmission clutch 22 is controlled to move to contact the bottom of the rotating disk 20. At this time, the rotating disk 20 and the drive disk 19 are rotated together by friction. When the active bevel gear 17 rotates clockwise, the horizontal rod 5 passes through the horizontal hole 6. During the movement of the horizontal rod 5, if the impeller is not coaxial with the fixed column 4, the horizontal rod 5 also plays a role in pushing the impeller. Under the action of the abutment of the four horizontal rods 5 with the inner circumferential wall of the impeller and the extrusion friction force, the impeller is restricted along its radial direction. When the vertical ring 9 needs to start to move downward, the control adjustment electromagnet 21 is controlled to contact the driving disk 19, the driving disk 19 rotates together with the lead screw 14, and the friction transmission clutch 22 is separated from the rotating disk 20. When the transmission motor 18 rotates counterclockwise, the power block 15 drives the vertical ring 9 to move downward, and the vertical rod 10 pops outward until it moves to abut against the upper surface of the impeller; when the vertical rod 10 fits the surface of the impeller, the adsorption of the detection electromagnet 24 on the detection rod 23 is removed. Under the elastic force of the spring 28, if the detection rod 23 does not move, the vertical ring 9 is moved downward. The straight rod 10 is in contact with the upper surface of the impeller. As long as the detection rod 23 moves downward, the proximity switch 26 will be separated from the detection block 25, and the first electromagnet 12 will be triggered to separate from the vertical rod 10, so that the next vertical rod 10 will not pop out. According to the specific shape of the impeller, as long as the impeller is not flat, this embodiment sets at least two vertical rods 10 that will not be in contact with the upper surface of the impeller. At this time, the vertical rods 10 will definitely not pop out, which proves that the impeller is not level and needs to be adjusted. When all four vertical rods 10 pop out, it proves that the impeller is level.

[0035] When glue bonding is required, the winding rope 32 pulls the leather bag 30 into the operating chamber 29 until it contacts the thorn 33. The thorn 33 is set at an angle to pierce the leather bag 30 until the thorn 33 passes through the leather bag 30. Finally, the winding rope 32 is pulled back. Under the action of the barb 34, the leather bag 30 is cut open, and the glue quickly flows to the operating chamber 29 and the surrounding walls of the vertical rod 10 and the impeller. In this embodiment, it is set that the winding rope 32 will not be bonded. After the glue is cured, the bonding effect of the vertical rod 10 and the upper surface of the impeller can be achieved, and the circumferential restriction effect of the impeller can be achieved. If it is necessary to separate the vertical rod 10 and the impeller, the softening capsule 35 is pulled into the operating chamber 29. Similarly, under the action of the thorn 33 and the barb 34, the softening capsule 35 is split, and the softener is left in the glue position. At this time, the connection between the vertical rod 10 and the impeller is loosened, and the vertical ring 9 and the vertical rod 10 can be separated from the impeller.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An impeller welding tool for a centrifugal blower, characterized in that: It comprises a frame (1), a bracket (2) rotatably arranged on the frame (1), and a workbench (3) rotatably arranged on the bracket (2); The workbench (3) is provided with a fixing column (4) for sleeve-mounting the impeller, a horizontal positioning device for positioning the impeller in the horizontal direction, and a vertical positioning device for limiting the vertical movement of the impeller; The horizontal positioning device comprises a plurality of horizontal rods (5) movably arranged in the fixed column (4) and a power mechanism for realizing the movement of the plurality of horizontal rods (5); the fixed column (4) is provided with a plurality of horizontal holes (6), and the horizontal rods (5) abut against the inner peripheral wall of the impeller after passing through the horizontal holes (6).

2. The impeller welding tool for a centrifugal blower according to claim 1, characterized in that: The power mechanism comprises a plurality of power screw sleeves (8), a plurality of power screw rods (7) and a transmission assembly which moves at intervals with the vertical positioning device, the power screw sleeve (8) is threadedly connected to the power screw rod (7), the power screw sleeve (8) is rotationally connected to the inner cavity of the fixed column (4), the end of the power screw rod (7) is fixedly connected to the tail end of the horizontal rod (5), the horizontal hole (6) is set as a square hole, the horizontal rod (5) is slidingly adapted to the horizontal hole (6), and the front end of the horizontal rod (5) is located on the inner wall of the horizontal hole (6) in an initial state.

3. The impeller welding tool for a centrifugal blower according to claim 2, characterized in that: The vertical positioning device comprises a vertical ring (9) slidably arranged outside the fixed column (4), a plurality of vertical rods (10) movably arranged on the peripheral wall of the vertical ring (9), a driving mechanism for realizing the ejection of the vertical rods (10), a circumferential positioning mechanism for limiting the circumferential movement of the impeller, and a power mechanism for controlling the vertical ring (9) to move along the vertical direction, wherein the power mechanism is in transmission connection with the transmission assembly, the peripheral wall of the vertical ring (9) is provided with a plurality of vertical grooves (11), and the vertical ring (9) is movably arranged in the vertical grooves (11).

4. The impeller welding tool for a centrifugal blower according to claim 3, characterized in that: The driving mechanism comprises a first electromagnet (12) and a torsion spring (13); the vertical ring (9) is rotatably arranged in the vertical groove (11), and the rotation axis direction of the vertical ring (9) and the vertical groove (11) is vertically arranged; the outer diameter of the vertical ring (9) is smaller than the inner diameter of the impeller; the rotation axis of the vertical rod (10) and the vertical groove (11) are both located at the symmetric plane position of the corresponding side wall of the vertical ring (9), that is, located at the middle position of the vertical groove (11); the vertical rod (10) moves to abut against the upper surface of the impeller; the first electromagnet (12) is arranged at one end of the vertical groove (11) corresponding to the movable end of the vertical rod (10) and is used to adsorb the vertical rod (10); the torsion spring (13) is used to connect the vertical rod (10) and the inner wall of the vertical groove (11).

5. The impeller welding tool for a centrifugal blower according to claim 4, characterized in that: The power mechanism comprises a screw rod (14) and a power block (15); the screw rod (14) is rotatably connected to the top of the inner cavity of the fixed column (4); the screw rod (14) and the power block (15) are spirally matched; a power groove is penetrated through the side wall of the fixed column (4); and the power block (15) extends out of the power groove and is fixedly connected to the inner wall of the vertical ring (9).

6. The impeller welding tool for a centrifugal blower according to claim 5, characterized in that: The transmission assembly comprises a plurality of driven bevel gears (16), a driving bevel gear (17), a transmission motor (18) and an adjustment portion for realizing staggered movement of the driving bevel gear (17) and the vertical ring (9); the driving bevel gear (17) is rotatably arranged on the inner wall of the fixed column (4); the driven bevel gear (16) is fixed on the outer wall of the power screw sleeve (8); the driving bevel gear (17) is meshedly connected with the plurality of driven bevel gears (16); the axis direction of the driving bevel gear (17) is vertically arranged and the axis direction of the driven bevel gear (16) is horizontally arranged.

7. The impeller welding tool for a centrifugal blower according to claim 6, characterized in that: The adjusting part comprises a driving disk (19), a rotating disk (20), an adjusting electromagnet (21), and a friction transmission clutch (22) which is lifted and lowered on the driving disk (19); the driving disk (19) is fixedly connected to the output end of the transmission motor (18); the rotating disk (20) is fixedly connected to the active bevel gear (17); the rotating disk (20) is covered on the outside of the driving disk (19); the driving disk (19) is rotatably connected to the tail end of the screw rod (14); the adjusting electromagnet (21) is arranged on the peripheral wall of the screw rod (14); the adjusting electromagnet (21) is used to adsorb the driving disk (19); the friction transmission clutch (22) and the rotating disk (20) are driven by friction; the middle part of the active bevel gear (17) is provided with a cavity; the screw rod (14) passes through the active bevel gear (17) and is connected to the driving disk (19).

8. The impeller welding tool for a centrifugal blower according to claim 3, characterized in that: The circumferential positioning mechanism comprises an adhesive component arranged on the vertical rod (10) and a detection component for judging whether the impeller is horizontal. The detection component comprises a plurality of detection rods (23) elastically arranged in the vertical rod (10), a detection electromagnet (24), a detection block (25) and a plurality of proximity switches (26). The bottom end of the detection rod (23) abuts against the upper surface of the impeller. The detection electromagnet (24) adsorbs the side wall of the detection rod (23). The detection block (25) is fixed on the side wall of the detection rod (23). The vertical rod (10) is provided with a plurality of detection holes (27). The detection rod (23) is elastically arranged in the detection hole (27). When the proximity switch (26) abuts against the detection block (25), the proximity switch (26) controls an adjacent first electromagnet (12) to be powered off, that is, the plurality of proximity switches (26) control the next first electromagnet (12) to be powered off in turn along one direction.

9. The impeller welding tool for a centrifugal blower according to claim 8, characterized in that: The bonding assembly comprises an operating cavity (29), a plurality of leather bags (30) movably arranged in the operating cavity (29), a processing portion for puncturing the leather bags (30) and a softening portion, wherein the leather bags (30) are filled with glue, and the softening portion is used to quickly soften the glue.

10. The impeller welding tool for a centrifugal blower according to claim 9, characterized in that: The processing part comprises a puncture needle (33) and a barb (34); the puncture needle (33) is arranged obliquely and is arranged obliquely along the positive direction of movement of the leather bag (30); the barb (34) is fixed on the puncture needle (33); and the inclination direction of the barb (34) is opposite to that of the puncture needle (33).

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