Impeller concentricity correction table

Abstract

This invention discloses an impeller concentricity correction workbench, relating to the field of impeller processing equipment technology. It aims to solve the problems of unstable concentricity correction effects and low assembly efficiency of the impeller disc and front disc in existing processes. The workbench includes a base, an assembly table, a transfer beam, and a hoisting mechanism. The assembly table is mounted on the base, one end of the transfer beam is hinged to the end of the crossbeam, and the hoisting mechanism is located at the lower end of the guide rod. The hoisting mechanism also includes a hoisting assembly, chucks, and support claws. This invention drives the correction wheel to move synchronously, centering and aligning the impeller disc, and positioning it from both top and bottom directions to keep the impeller front disc and the disc coaxial. The mechanical structure corrects the concentricity of the impeller front disc and the impeller disc, resulting in a more stable correction effect. The extension and retraction of the guide rod controls the unfolding of the chucks and support claws. A transfer trolley is used for hoisting, improving the convenience of impeller component movement. A scissor fork is used for limit control, making operation simple and convenient, and improving production assembly efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of impeller processing equipment, in particular to an impeller concentricity correction workbench. Background Art

[0002] An impeller refers to a wheel with moving blades, which is often used in pumps and fans. Impellers are commonly cast or welded, and the material is selected according to the working medium. The function of the impeller is to convert the mechanical energy of the prime mover into the static pressure energy and dynamic pressure energy of the working fluid.

[0003] According to the blade form, impellers are divided into three types: open impeller, closed impeller, and semi-open impeller.

[0004] In order to accommodate the blades, all impellers are equipped with a rear cover or reinforcement ribs. The closed impeller consists of front and rear covers and blades; the semi-open impeller consists of blades and a rear cover; the open impeller only has blades and part of the rear cover or no rear cover.

[0005] Among them, the closed impeller has higher efficiency and is more difficult to manufacture. It is most widely used in centrifugal pumps and is suitable for conveying clean liquids with low viscosity and no particles, such as water and solutions.

[0006] The impeller is installed on the rotor. In order to ensure that the impeller remains stable when the rotor rotates at high speed, the axis of the impeller disc and the impeller front disc must be located on the same axis during the impeller assembly process. In the existing assembly process, the concentricity correction of the impeller disc and the impeller front disc mostly relies on the proficiency and experience of the assembly workers. The correction effect is unstable. In addition, since the impeller is made of metal, the component is heavy and inconvenient to carry and move, resulting in low assembly efficiency.

[0007] Therefore, the present application provides an impeller concentricity correction workbench to meet the needs. Summary of the invention

[0008] The purpose of the present application is to provide an impeller concentricity correction workbench, which uses mechanical cooperation to perform concentricity correction, so that the wheel disc and the impeller front disc remain concentric, thereby improving the quality stability of the impeller assembly.

[0009] To achieve the above purpose, the present application provides the following technical solution: an impeller concentricity correction workbench, wherein the impeller comprises a wheel disc, blades and an impeller front disc, wherein the centers of the wheel disc and the impeller front disc are both provided with an empty groove, and further comprising:

[0010] A base, wherein a stand is provided on the base, and a crossbeam is provided on the top of the stand;

[0011] An assembly table, wherein the assembly table is arranged on the base, a cavity with a transparent top is arranged in the assembly table, a first positioning rod is vertically arranged in the cavity, a table top is arranged on the top of the assembly table, the table top is used to place a wheel disc, the wheel disc is used to assemble blades, the blades are distributed in a circular array on the wheel disc, the table top is a disc with a circular groove in the middle, the first positioning rod is coaxially arranged with the table top, there are correction grooves in a circular array on the table top, the correction grooves are arranged along the radial direction of the table top, correction wheels are slidably connected in the correction grooves, a correction disc is rotatably connected below the table top, there are dial grooves in a circular array on the correction disc, the number of the dial grooves is the same as that of the correction grooves and the positions are corresponding, the bottom of the correction wheel is slidably connected in the corresponding dial grooves, and the correction wheel can be controlled to converge and disperse;

[0012] A transfer beam, one end of the transfer beam is hinged with the end of the cross beam, and a positioning telescopic cylinder is provided on the axis of the hinge between the transfer beam and the cross beam, the telescopic end of the positioning telescopic cylinder is downward and the telescopic end of the positioning telescopic cylinder is provided with a second positioning rod, the second positioning rod is coaxially arranged with the first positioning rod, the transfer beam is provided with a through hole, the through hole corresponds to the position of the second positioning rod, a transfer trolley is provided below the transfer beam, the transfer trolley moves along the transfer beam, a positioning block is provided at the bottom of the transfer trolley, the positioning block is provided with a second positioning hole, the second positioning hole upwardly penetrates the transfer trolley, the second positioning hole matches the size of the second positioning rod and the top edge of the second positioning hole is chamfered, an electric cylinder is provided at the bottom of the positioning block, and a guide rod is telescopically provided at the bottom of the electric cylinder, the guide rod is coaxially arranged with the second positioning hole, the bottom end of the guide rod is provided with a first positioning hole, and the first positioning hole matches the size of the first positioning rod;

[0013] A lifting mechanism, wherein the lifting mechanism is arranged at the lower end of the guide rod, and the lifting mechanism also includes a lifting assembly, a clamping claw and a supporting claw. The lifting assembly is slidably connected to the lower section of the guide rod, and the lifting assembly is coaxially arranged with the guide rod. The bottom annular array of the lifting assembly has the clamping claw, and the outer end of the clamping claw is a wedge-shaped block. The clamping claw is arranged along the radial direction of the lifting assembly, and the clamping claw is linked with the end of the guide rod. When the guide rod extends downward and moves relative to the lifting assembly, the guide rod pushes out the clamping claw, and the clamping claw grabs the wheel disc after extending. One end of the supporting claw It is hinged with the outer wall of the guide rod, and the middle section of the support claw is slidably connected with the lifting assembly. The support claw is unfolded to grab the impeller front disc. An auxiliary sleeve is provided on the top of the lifting assembly, and a pressure plate is mounted on the outside of the auxiliary sleeve. The pressure plate presses down the impeller front disc from above so that the impeller front disc is evenly stressed. A limiting sleeve is provided on the top of the auxiliary sleeve, and an auxiliary spring is pressed between the pressure plate and the limiting sleeve. A limiting groove is provided on the guide rod, and a limiting block is provided on the limiting sleeve. The limiting block cooperates with the limiting groove, and the limiting block is connected to a release mechanism to release the limit.

[0014] Preferably, a mounting table is provided on the outside of the assembly table, and a correction motor and a transmission seat are provided on the mounting table, a worm is provided on the transmission seat, a transmission shaft is provided between the transmission seat and the table top, a worm wheel and a transmission gear are provided on the transmission shaft, and a ring gear is provided on the outer edge of the correction disk, the correction motor drives the worm, the worm is meshed with the worm wheel, and the transmission gear is meshed with the ring gear, so as to drive the correction disk to rotate.

[0015] Preferably, a hanging rail is provided at the bottom of the transfer beam, a rack is provided on the bottom surface of the hanging rail, transfer rollers are symmetrically provided on the transfer trolley, the transfer rollers roll on both sides of the hanging rail, a transfer motor is provided on the transfer trolley, a transfer gear is rotatably connected in the transfer trolley, and the transfer gear is meshed with the rack to facilitate moving and positioning of the transfer trolley.

[0016] Preferably, a counterweight block is provided on the end of the cross beam opposite to the transfer beam, and the other end of the transfer beam is rotatably connected to a bracket, a torsion spring is pressed between the bracket and the transfer beam, and legs are symmetrically provided at both ends of the bracket. Universal wheels are provided at the bottom ends of the legs, which can drive the transfer beam to rotate so as to lift impeller components at different positions.

[0017] Preferably, a lifting seat is provided at the bottom of the lifting assembly, a pressing sleeve is rotatably connected to the outer wall of the lifting seat, a pressing ring is provided at the bottom of the pressing sleeve, the pressing ring is used to press the wheel disc, the outer diameter of the pressing ring is smaller than the inner edge diameter of the blade annular array, a swivel seat is rotatably connected to the base, the assembly table is provided on the swivel seat, the swivel seat is coaxially arranged with the first positioning rod, so as to facilitate the rotation of the table top when welding the blades, thereby improving the convenience during welding.

[0018] Preferably, a positioning sleeve is provided on the swivel seat, a positioning column is slidably connected in the positioning sleeve, the first positioning rod is provided on the top of the positioning column, and a positioning spring is pressed between the bottom of the positioning column and the positioning sleeve, which is conducive to cooperation when the guide rod falls.

[0019] Preferably, the bottom annular array of the lifting seat has a bottom groove, and the claws are horizontally slidably connected in the bottom groove. A transmission block is provided at the inner end of the claw, and a return spring is pressed between the transmission block and the lifting seat. Symmetrical vertical inclined surfaces are provided on both sides of the inward end of the transmission block, and the vertical inclined surfaces relative to each other on adjacent transmission blocks are parallel to each other. A chamfered surface is provided on the top of the inward end of the transmission block, and a chamfer is provided at the bottom end of the guide rod, and the chamfer matches the chamfered surface.

[0020] Preferably, a limiting ring is provided on the guide rod, the diameter of the limiting ring is larger than the inner diameter of the auxiliary sleeve, the supporting claw is hinged on the outer wall of the limiting ring, the middle section of the supporting claw is provided with a supporting slide groove, the lifting assembly is a regular polygonal cylindrical shell, the side walls of the lifting assembly are vertically provided with grooves, support protrusions are symmetrically provided on both sides of the grooves, the supporting slide groove is slidably connected to the supporting protrusion, and the end of the supporting claw is rotatably connected to a support roller.

[0021] Preferably, the release mechanism is a scissors-fork piece, the scissors-fork piece is a scissors-fork structure, a torsion spring is provided in the scissors-fork piece, a release groove is provided at one end of the scissors-fork piece, a release column is provided on the limit block, and the release column is slidably connected in the release groove.

[0022] Preferably, the table top has a circular array of universal balls, the universal balls are located inside the correction wheel, a spring is pressed between the universal balls and the table top, and the correction wheel is in the shape of an inverted frustum.

[0023] In summary, the technical effects and advantages of the present invention are as follows:

[0024] The present invention utilizes a correction motor to drive the ring gear on the assembly table to drive the correction disk to rotate, drives the correction wheel to move synchronously, and aligns the wheel disk to the center of the table surface, so that the wheel disk and the assembly table are coaxial, and then the second positioning rod on the top is matched with the second positioning hole on the positioning block, and the first positioning rod on the bottom is matched with the first positioning hole on the guide rod to perform positioning from the upper and lower directions, and at the same time, a lifting assembly is used to make the impeller front disk coaxial with the guide rod, so that the impeller front disk and the wheel disk remain coaxial, and the mechanical structure is used to correct the concentricity of the impeller front disk and the wheel disk, with high precision and more stable correction effect, which can improve the assembly quality of the impeller.

[0025] The present invention provides clamping claws and supporting claws on the lifting assembly, utilizes the telescopic action of the guide rod to control the expansion of the clamping claws and the supporting claws, grabs the wheel disc and the impeller front disc, lifts and lowers them through an electric cylinder, and uses a transfer beam and a transfer trolley for lifting, thereby improving the convenience of moving the impeller parts, uses an easy-to-use scissors-type part to control the limit block to release the limit, is simple to operate and easy to use, and improves the production and assembly efficiency.

[0026] The present invention can cover most of the area near the base through the rotatable transfer beam, and can hoist impeller components at different positions during production, thereby improving the practicability of hoisting the impeller components and meeting different actual production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a left-side structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the enlarged structure of point B of the present invention;

[0031] Figure 4 It is a schematic diagram of the AA cross-sectional structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the enlarged structure of position C of the present invention;

[0033] Figure 6 It is a schematic diagram of the enlarged structure of D of the present invention;

[0034] Figure 7It is a schematic diagram of the enlarged structure of position E of the present invention;

[0035] Figure 8 It is a front structural schematic diagram of the present invention;

[0036] Fig. 9 It is a schematic diagram of the FF cross-sectional structure of the present invention;

[0037] Fig.10 It is a schematic diagram of the enlarged structure of G of the present invention;

[0038] Fig.11 It is a schematic diagram of the enlarged structure of the H portion of the present invention;

[0039] Fig.12 It is a schematic diagram of the assembly platform structure of the present invention;

[0040] Fig.13 It is a schematic diagram of the correction disc structure of the present invention;

[0041] Fig.14 It is a structural schematic diagram of the lifting mechanism of the present invention in a gathered state;

[0042] Fig.15 It is a structural schematic diagram of the lifting mechanism of the present invention in an unfolded state;

[0043] Fig.16 It is a schematic diagram of the structure of the hoisting assembly of the present invention;

[0044] Fig.17 It is a schematic structural diagram of the clamping claw of the present invention.

[0045] In the figure: 1, base; 2, assembly table; 3, transfer trolley; 4, positioning block; 5, lifting assembly; 6, claw; 7, support claw; 8, pressure plate; 10, swivel seat; 11, stand; 12, crossbeam; 13, transfer beam; 14, bracket; 15, support leg; 16, universal wheel; 101, positioning sleeve; 102, positioning spring; 103, positioning column; 104, first positioning rod; 121, counterweight; 130, positioning telescopic cylinder; 131, second positioning rod; 132, hanging rail; 133, rack;

[0046] 20. Mounting table; 21. Correction motor; 22. Transmission seat; 23. Table; 24. Ring gear; 25. Correction plate; 26. Correction wheel; 27. Universal ball; 221. Worm; 222. Worm wheel; 223. Transmission gear; 231. Correction slot; 251. Dial slot;

[0047] 30. Transfer motor; 31. Transfer gear; 32. Transfer roller;

[0048] 40. electric cylinder; 41. guide rod; 42. limiting groove; 43. limiting ring; 44. first positioning hole; 401. second positioning hole;

[0049] 50. Lifting seat; 51. Bottom groove; 52. Press sleeve; 53. Slot; 54. Auxiliary sleeve; 55. Limit sleeve; 56. Limit block; 57. Scissor parts; 561. Release column;

[0050] 60. Transmission block; 61. Return spring;

[0051] 70. Support chute; 71. Support roller;

[0052] 80. Auxiliary spring;

[0053] 90. Disc; 91. Blades; 92. Impeller front disc. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] Example: Reference Figure 1-17 The impeller concentricity correction workbench shown in the figure, the impeller includes a wheel disc 90, blades 91 and an impeller front disc 92, the centers of the wheel disc 90 and the impeller front disc 92 are both provided with empty grooves, and also includes:

[0056] A base 1, a frame 11 is provided on the base 1, and a crossbeam 12 is provided on the top of the frame 11;

[0057] The assembly table 2 is arranged on the base 1. A cavity with a transparent top is arranged in the assembly table 2. A first positioning rod 104 is vertically arranged in the cavity. A table 23 is arranged on the top of the assembly table 2. The table 23 is used to place a wheel disc 90. The wheel disc 90 is used to assemble blades 91. The blades 91 are distributed in a circular array on the wheel disc 90. The table 23 is a disc with a circular groove in the middle. The first positioning rod 104 is coaxially arranged with the table 23. There are six groups of correction grooves 231 in a circular array on the table 23. The correction grooves 231 are arranged along the radial direction of the table 23. Correction wheels 26 are slidably connected in the correction grooves 231. A correction disk 25 is rotatably connected below the table 23. There are six groups of shifting grooves 251 in a circular array on the correction disk 25. The shifting grooves 251 are matched with the correction grooves 231 in a corresponding position. The bottom of the correction wheel 26 is slidably connected in the corresponding shifting grooves 251.

[0058] A transfer beam 13 is hinged at one end of the transfer beam 13 with the end of the cross beam 12. A positioning telescopic cylinder 130 is provided on the axis of the hinge between the transfer beam 13 and the cross beam 12. The telescopic end of the positioning telescopic cylinder 130 is downward and a second positioning rod 131 is provided at the telescopic end of the positioning telescopic cylinder 130. The second positioning rod 131 is coaxially arranged with the first positioning rod 104. A perforation is provided on the transfer beam 13, and the perforation corresponds to the position of the second positioning rod 131. A transfer trolley 3 is provided below the transfer beam 13. The transfer trolley 3 moves along the transfer beam 13. A positioning block 4 is provided at the bottom of the vehicle 3, and a second positioning hole 401 is provided on the positioning block 4. The second positioning hole 401 penetrates the transfer vehicle 3 upward, and the second positioning hole 401 matches the size of the second positioning rod 131, and the top edge of the second positioning hole 401 is chamfered. An electric cylinder 40 is provided at the bottom of the positioning block 4, and a guide rod 41 is telescopically provided at the bottom of the electric cylinder 40. The guide rod 41 is coaxially arranged with the second positioning hole 401, and a first positioning hole 44 is provided at the bottom end of the guide rod 41, and the first positioning hole 44 matches the first positioning rod 104;

[0059] The lifting mechanism is arranged at the lower end of the guide rod 41. The lifting mechanism also includes a lifting assembly 5, a claw 6 and a support claw 7. The lifting assembly 5 is slidably connected to the lower section of the guide rod 41, and the lifting assembly 5 is coaxially arranged with the guide rod 41. The bottom annular array of the lifting assembly 5 has six groups of claws 6. The outer end of the claw 6 is a wedge-shaped block, which can be easily inserted from the bottom of the wheel 90 for grabbing. The claw 6 is arranged along the radial direction of the lifting assembly 5, and the claw 6 is linked with the end of the guide rod 41. One end of the support claw 7 is connected to the guide rod 41. 1 is hinged, the middle section of the support claw 7 is slidably connected with the lifting assembly 5, the support claw 7 is unfolded to grab the impeller front plate 92, the top of the lifting assembly 5 is provided with an auxiliary sleeve 54, the auxiliary sleeve 54 is sleeved with a pressure plate 8, the top of the auxiliary sleeve 54 is provided with a limit sleeve 55, an auxiliary spring 80 is pressed between the pressure plate 8 and the limit sleeve 55, a limit groove 42 is provided on the guide rod 41, a limit block 56 is provided on the limit sleeve 55, the limit block 56 cooperates with the limit groove 42, and the limit block 56 is connected with a release mechanism.

[0060] As an implementation method in this embodiment, in order to facilitate driving the correction disk 25 to rotate to adjust the position of the correction wheel 26, as shown in FIG. Figure 3 , Fig.11 , Fig.12 As shown, a mounting table 20 is provided on the outside of the assembly table 2, and a correction motor 21 and a transmission seat 22 are provided on the mounting table 20, a worm 221 is provided on the transmission seat 22, a transmission shaft is provided between the transmission seat 22 and the table top 23, a worm wheel 222 and a transmission gear 223 are provided on the transmission shaft, and a ring gear 24 is provided on the outer edge of the correction disk 25, the correction motor 21 drives the worm 221, the worm 221 is meshed with the worm wheel 222, and the transmission gear 223 is meshed with the ring gear 24.

[0061] As an implementation method in this embodiment, in order to facilitate the movement of the transfer vehicle 3 and accurately position it, as shown in FIG. Figure 1 , Figure 2 , Fig. 9 , Fig.10 As shown, a hanging rail 132 is provided at the bottom of the transfer beam 13, a rack 133 is provided on the bottom surface of the hanging rail 132, transfer rollers 32 are symmetrically provided on the transfer trolley 3, and the transfer rollers 32 roll on both sides of the hanging rail 132. A transfer motor 30 is provided on the transfer trolley 3, and a transfer gear 31 is rotatably connected in the transfer trolley 3, and the transfer gear 31 is meshed with the rack 133.

[0062] As an implementation method in this embodiment, in order to keep the crossbeam 12 horizontal and enhance its structural stability, as shown in FIG. Figure 1 , Figure 2 , Figure 8 , Fig. 9 As shown, a counterweight 121 is provided on the end of the cross beam 12 opposite to the transfer beam 13, and the other end of the transfer beam 13 is rotatably connected to a bracket 14, a torsion spring is pressed between the bracket 14 and the transfer beam 13, and legs 15 are symmetrically provided at both ends of the bracket 14, and a universal wheel 16 is provided at the bottom end of the leg 15.

[0063] As an implementation method in this embodiment, the table 23 can be rotated during concentric installation to improve the convenience of installing the welding blade, such as Figure 1 , Figure 2 , Fig. 9 , Fig.14 , Fig.15 As shown, a lifting seat 50 is provided at the bottom of the lifting assembly 5, and a pressing sleeve 52 is rotatably connected to the outer wall of the lifting seat 50. A pressing ring is provided at the bottom of the pressing sleeve 52, and the pressing ring is used to press the wheel disc 90. The outer diameter of the pressing ring is smaller than the inner edge diameter of the annular array of blades 91. A swivel seat 10 is rotatably connected to the base 1, and an assembly table 2 is provided on the swivel seat 10. The swivel seat 10 is coaxially arranged with the first positioning rod 104.

[0064] As an implementation method in this embodiment, in order to facilitate the first positioning rod 104 to fully cooperate with the first positioning hole 44, as shown in FIG. Figure 4 , Fig. 9 As shown, a positioning sleeve 101 is provided on the rotating seat 10 , a positioning column 103 is slidably connected in the positioning sleeve 101 , a first positioning rod 104 is provided on the top of the positioning column 103 , and a positioning spring 102 is pressed between the bottom of the positioning column 103 and the positioning sleeve 101 .

[0065] As an implementation method in this embodiment, in order to make the claw 6 automatically retract and move in conjunction with the guide rod 41, as shown in FIG. Figures 14 to 17As shown, the bottom annular array of the lifting seat 50 has a bottom groove 51, and the bottom groove 51 is horizontally slidably connected with a claw 6, the inner end of the claw 6 is provided with a transmission block 60, and a return spring 61 is pressed between the transmission block 60 and the lifting seat 50. Symmetrical vertical inclined surfaces are provided on both sides of the inward end of the transmission block 60, and the relative vertical inclined surfaces on adjacent transmission blocks 60 are parallel to each other. A chamfered surface is provided on the top of the inward end of the transmission block 60, and a chamfer is provided at the bottom end of the guide rod 41, and the chamfer matches the chamfered surface.

[0066] As an implementation method in this embodiment, in order to make the guide rod 41 and the lifting assembly 5 drive the support claw 7 to open and close, as shown in FIG. Figure 6 and Figures 15 to 17 As shown, a limiting ring 43 is provided on the guide rod 41, and the diameter of the limiting ring 43 is larger than the inner diameter of the auxiliary sleeve 54. A supporting claw 7 is hinged on the outer wall of the limiting ring 43, and a supporting slide groove 70 is provided in the middle section of the supporting claw 7. The lifting assembly 5 is a regular hexagonal columnar shell, and the side walls of the lifting assembly 5 are vertically provided with slots 53, and supporting protrusions are symmetrically provided on both sides of the slot 53. The supporting slide groove 70 is slidably connected on the supporting protrusion, and the end of the supporting claw 7 is rotatably connected to a supporting roller 71.

[0067] As an implementation method in this embodiment, in order to facilitate the control of the matching state between the limit block 56 and the limit groove 42, as shown in FIG. Fig.14 , Fig.16 As shown, the release mechanism is a scissors fork member 57, which is a scissors fork structure. The scissors fork member 57 is provided with a torsion spring, one end of the scissors fork member 57 is provided with a release groove, and the limit block 56 is provided with a release column 561, which is slidably connected in the release groove.

[0068] As an implementation method in this embodiment, in order to facilitate the placement of the roulette wheel 90 in the center on the table 23, as shown in FIG. Fig.11 , Fig.12 As shown, there are universal balls 27 in a circular array on the table 23, the universal balls 27 are located inside the correction wheel 26, a spring is pressed between the universal balls 27 and the table 23, and the correction wheel 26 is in the shape of an inverted frustum.

[0069] The working principle of the utility model is as follows: initially, the wheel disc 90 and the impeller front disc 92 are both located on the ground beside the base 1. During assembly, the bracket 14 is first moved to drive the transfer beam 13 to rotate. The universal wheel 16 reduces the friction during movement and improves the convenience of movement. If the wheel disc 90 is located on the moving track of the universal wheel 16 during movement, the bracket 14 can be rotated to make the support leg 15 pass from the side of the wheel disc 90 until the transfer beam 13 rotates to the top of the wheel disc 90. Then, the transfer motor 30 is started to drive the transfer gear 31 to rotate, driving the transfer trolley 3 to move along the rack 133. The transfer roller 32 rolls on the hanging rail 132 to reduce the friction during the movement of the transfer trolley 3. When the hoisting assembly 5 moves with the transfer trolley 3 to the top of the wheel disc 90, the lifting assembly 5 is closed. The transfer motor 30 stabilizes the position of the transfer trolley 3, and then the electric cylinder 40 is started to extend, and the guide rod 41 extends downward, driving the lifting assembly 5 to descend, so that the lifting seat 50 falls into the empty slot in the center of the wheel disc 90, and the guide rod 41 continues to extend downward, and its bottom end squeezes the chamfered surface on the transmission block 60, pushing the transmission block 60 to move outward, driving the claw 6 to extend outward along the bottom slot 51. During the extension of the claw 6, the end of its wedge block is inserted from the bottom of the wheel disc 90 to grab the wheel disc 90 from the empty slot. When the bottom end surface of the guide rod 41 is flush with the bottom surface of the lifting seat 50, the limit slot 42 moves to the limit sleeve 55, and under the action of the torsion spring in the scissor fork 57, the limit block 56 is clamped in the limit slot 42, so that the guide rod 41 and the lifting assembly 5 are limited and fixed. The guide rod 41 continues to squeeze the transmission block 60, so that the claw 6 is limited and fixed, and then the electric cylinder 40 is started to contract, driving the guide rod 41 to retract upward, and the wheel disc 90 is lifted up through the claw 6. After the wheel disc 90 rises above the table 23, the electric cylinder 40 is closed to fix the position of the guide rod 41, and then the transfer motor 30 is started to work in the reverse direction, driving the transfer trolley 3 to move along the transfer beam 13 to the top of the assembly table 2. After the transfer trolley 3 moves to the end of the transfer beam 13, the transfer motor 30 is closed, and then the electric cylinder 40 is started to extend, and it extends downward through the guide rod 41, driving the lifting assembly 5 and the grabbed wheel disc 90 to fall. After the wheel disc 90 falls on the table 23, the electric cylinder 40 stops extending, and then the correction motor 21 on the installation table 20 is started, and the transmission seat 2 2 drives the worm wheel 222 to rotate, and drives the transmission gear 223 to rotate through the transmission shaft, drives the ring gear 24 and the correction disc 25 connected thereto to rotate, and the shifting groove 251 rotates accordingly, so that the correction wheel 26 synchronously gathers along the correction groove 231 toward the center of the table 23. In this process, the correction wheel 26 pushes the outer edge of the wheel disc 90 to move. When all the correction wheels 26 are in contact with the wheel disc 90, the wheel disc 90 is coaxial with the assembly table 2, and the correction motor 21 stops running. In this process, the universal ball 27 supports the wheel disc 90 to move, reducing the friction force when the wheel disc 90 moves. The inverted truncated cone-shaped correction wheel 26 moves with the wheel disc 90, so that its position is stable. Then the positioning telescopic cylinder 130 drives the second positioning rod 131 to extend.The second positioning rod 131 is inserted into the second positioning hole 401 to position the positioning block 4 and the electric cylinder 40 and the lifting assembly 5 below it from above. Then the electric cylinder 40 continues to extend, driving the lifting assembly 5 to fall, so that the pressure ring is pressed on the wheel disc 90 to limit it, and then the blade 91 is assembled and welded on the wheel disc 90. During the welding process, the pressure sleeve 52 and the rotating seat 10 can facilitate the rotation of the assembly table 2, change the angle of the wheel disc 90, and improve the convenience during welding;

[0070] After the blade 91 is welded, the scissor member 57 is used to drive the limit release column 561 to move outward, driving the limit block 56 to disengage from the limit groove 42, and then under the action of gravity, the lifting assembly 5 falls along the guide rod 41, and the transmission block 60 falls accordingly, and is squeezed by the reset spring 61, driving the claw 6 to retract along the bottom groove 51 until the limit ring 43 is blocked at the bottom of the auxiliary sleeve 54, and the guide rod 41 is completely disengaged from the lifting seat 50, and the claw 6 is completely retracted into the lifting seat 50, and then the electric cylinder 40 drives the guide rod 41 to retract, and the limit ring 43 is blocked at the bottom of the auxiliary sleeve 54, so that when the guide rod 41 is retracted, the lifting assembly 5 is driven to rise, and the lifting seat 50 is driven to rise from the empty groove in the center of the wheel disc 90, and then the positioning telescopic cylinder 130 is retracted, and the second positioning rod 131 The transfer trolley 3 is disengaged from the second positioning hole 401, and the positioning block 4 is disengaged from the limit. The transfer motor 30 is started to move the transfer trolley 3 to the top of the impeller front disk 92, and then the electric cylinder 40 is extended to allow the lifting assembly 5 to pass through the empty slot in the center of the impeller front disk 92. When the lifting seat 50 falls to the ground, the guide rod 41 continues to extend, so that the limit slot 42 and the limit block 56 cooperate to limit again. In this process, due to the support cooperation between the support slide groove 70 in the middle and the support protrusion in the slot 53, the support claw 7 flips with the movement of the guide rod 41, so that the support roller 71 lifts the impeller front disk 92 upward from the bottom, and as the impeller front disk 92 rises upward, its top edge contacts the pressure plate 8. Due to the pressure of the pressure plate 8 on the impeller front disk 92 and the support roller 71 reduces the friction between the support claw 7 and the impeller front disc 92. As the guide rod 41 moves, the posture of the impeller front disc 92 is adjusted so that the top edge of the impeller front disc 92 is evenly in contact with the pressure plate 8. At this time, the impeller front disc 92 is evenly supported by each supporting roller 71, so that the impeller front disc 92 is coaxial with the guide rod 41. The pressure plate 8 moves along the auxiliary sleeve 54 as the impeller front disc 92 rises. The auxiliary spring 80 keeps the pressure plate 8 on the impeller front disc 92. Then the electric cylinder 40 contracts to lift the impeller front disc 92. When the impeller front disc 92 rises to above the blade 91, the electric cylinder 40 stops contracting, and the transfer motor 30 drives the transfer trolley 3 to reset, so that the impeller front disc 92 moves to above the wheel disc 90 and the blade 91, and then the telescopic cylinder is positioned. 130 is extended to insert the second positioning rod 131 into the second positioning hole 401, and the lifting assembly 5 is positioned from above through the positioning block 4, and then the electric cylinder 40 is extended to make the impeller front disk 92 fall with the guide rod 41. The bottom end of the guide rod 41 is flush with the bottom surface of the lifting seat 50 at this time, and the first positioning hole 44 is exposed. In the process of the impeller front disk 92 falling, the first positioning hole 44 is plugged with the first positioning rod 104, and the lifting assembly 5 is positioned from below. At this time, the wheel disc 90 and the impeller front disk 92 are on the same axis, and then the guide rod 41 continues to extend downward, and the positioning column 103 is pressed into the positioning sleeve 101, so that the impeller front disk 92 falls on the blade 91, and then the electric cylinder 40 is stopped to be extended, and the impeller front disk 92 is welded to the blade 91, and the welding is completed.Finally, the correction motor 21 starts in reverse, driving the correction wheel 26 to move outward, releasing the limit on the wheel disc 90, and the electric cylinder 40 contracts to lift the hoisting assembly 5, lift the welded impeller, and then place it aside along the transfer beam 13. When the guide rod 41 contracts and rises, the positioning spring 102 lifts the positioning column 103 to reset, and the stand 11 is used to support the crossbeam 12, and the counterweight block 121 helps the crossbeam 12 to maintain balance.

[0071] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0072] Components not described in detail herein are prior art.

[0073] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An impeller concentricity correction workbench, the impeller comprising an impeller bottom plate (90), blades (91) and an impeller front disk (92), the impeller bottom plate (90) and the impeller front disk (92) both having a hollow groove at their centers, characterized in that: Also includes: A base (1), wherein a stand (11) is provided on the base (1), and a crossbeam (12) is provided on the top of the stand (11); An assembly table (2), the assembly table (2) being arranged on the base (1), the assembly table (2) being provided with a cavity with a transparent top, the cavity being vertically provided with a first positioning rod (104), the top of the assembly table (2) being provided with a table top (23), the table top (23) being used to place an impeller bottom plate (90), the impeller bottom plate (90) being used to assemble blades (91), the blades (91) being distributed in a circular array on the impeller bottom plate (90), the table top (23) being in the shape of a disk with a circular groove in the middle, the first positioning rod (104) and the table top being provided with a plurality of positioning rods (104). The table (23) is coaxially arranged, the table (23) has correction grooves (231) in an annular array, the correction grooves (231) are arranged along the radial direction of the table (23), the correction grooves (231) are slidably connected to the correction wheels (26), the table (23) is rotatably connected to a correction disk (25) below, the correction disk (25) has shifting grooves (251) in an annular array, the shifting grooves (251) are the same in number and corresponding in position to the correction grooves (231), and the bottoms of the correction wheels (26) are slidably connected in the corresponding shifting grooves (251); A transfer beam (13), one end of the transfer beam (13) is hinged to the end of the cross beam (12), a positioning telescopic cylinder (130) is provided on the axis of the hinged portion between the transfer beam (13) and the cross beam (12), the telescopic end of the positioning telescopic cylinder (130) is downward and a second positioning rod (131) is provided at the telescopic end of the positioning telescopic cylinder (130), the second positioning rod (131) is coaxially arranged with the first positioning rod (104), a through hole is provided on the transfer beam (13), the through hole corresponds to the position of the second positioning rod (131), a transfer trolley (3) is provided below the transfer beam (13), the transfer trolley (3) moves along the transfer beam (13), and the transfer trolley (3) ) is provided with a positioning block (4) at the bottom, the positioning block (4) is provided with a second positioning hole (401), the second positioning hole (401) passes through the transfer trolley (3) upwards, the second positioning hole (401) matches the size of the second positioning rod (131) and the top edge of the second positioning hole (401) is chamfered, the positioning block (4) is provided with an electric cylinder (40) at the bottom, the electric cylinder (40) is telescopically provided with a guide rod (41) at the bottom, the guide rod (41) is coaxially arranged with the second positioning hole (401), the bottom end of the guide rod (41) is provided with a first positioning hole (44), the first positioning hole (44) matches the size of the first positioning rod (104); A lifting mechanism, wherein the lifting mechanism is arranged at the lower end of the guide rod (41), and the lifting mechanism also includes a lifting assembly (5), a clamping claw (6) and a supporting claw (7). The lifting assembly (5) is slidably connected to the lower section of the guide rod (41), and the lifting assembly (5) and the guide rod (41) are coaxially arranged. The bottom annular array of the lifting assembly (5) has the clamping claw (6), and the outer end of the clamping claw (6) is a wedge-shaped block. The clamping claw (6) is arranged along the radial direction of the lifting assembly (5), and the clamping claw (6) is linked to the end of the guide rod (41). One end of the supporting claw (7) is hinged to the outer wall of the guide rod (41). The middle section of the claw (7) is slidably connected to the lifting assembly (5); the supporting claw (7) is unfolded to grab the impeller front disc (92); an auxiliary sleeve (54) is provided at the top of the lifting assembly (5); a pressure plate (8) is sleeved on the auxiliary sleeve (54); a limiting sleeve (55) is provided at the top of the auxiliary sleeve (54); an auxiliary spring (80) is pressed between the pressure plate (8) and the limiting sleeve (55); a limiting groove (42) is provided on the guide rod (41); a limiting block (56) is provided on the limiting sleeve (55); the limiting block (56) cooperates with the limiting groove (42); and the limiting block (56) is connected to a release mechanism; The bottom of the lifting assembly (5) is provided with a lifting seat (50), the outer wall of the lifting seat (50) is rotatably connected to a pressing sleeve (52), the bottom of the pressing sleeve (52) is provided with a pressing ring, the pressing ring is used to press the impeller bottom plate (90), the outer diameter of the pressing ring is smaller than the inner edge diameter of the annular array of blades (91), the base (1) is rotatably connected to a rotating seat (10), the rotating seat (10) is provided with the assembly platform (2), and the rotating seat (10) is coaxially arranged with the first positioning rod (104); The bottom annular array of the hanging seat (50) has a bottom groove (51), the bottom groove (51) is horizontally slidably connected with the claws (6), the inner end of the claws (6) is provided with a transmission block (60), and a return spring (61) is pressed between the transmission block (60) and the hanging seat (50), and symmetrical vertical inclined surfaces are provided on both sides of the inward end of the transmission block (60), and the vertical inclined surfaces opposite to each other on adjacent transmission blocks (60) are parallel to each other, and a chamfered surface is provided on the top of the inward end of the transmission block (60), and the bottom end of the guide rod (41) is provided with a chamfer, and the chamfer matches the chamfered surface; The guide rod (41) is provided with a limiting ring (43), the diameter of the limiting ring (43) is larger than the inner diameter of the auxiliary sleeve (54), the outer wall of the limiting ring (43) is hinged with the supporting claw (7), the middle section of the supporting claw (7) is provided with a supporting slide groove (70), the lifting assembly (5) is a regular polygonal columnar shell, the side walls of the lifting assembly (5) are vertically provided with slots (53), the two sides of the slot (53) are symmetrically provided with supporting protrusions, the supporting slide groove (70) is slidably connected to the supporting protrusion, and the end of the supporting claw (7) is rotatably connected to a supporting roller (71).

2. The impeller concentricity correction workbench according to claim 1, characterized in that: A mounting platform (20) is provided outside the assembly platform (2), a correction motor (21) and a transmission seat (22) are provided on the mounting platform (20), a worm (221) is provided on the transmission seat (22), a transmission shaft is provided between the transmission seat (22) and the table surface (23), a worm wheel (222) and a transmission gear (223) are provided on the transmission shaft, a ring gear (24) is provided on the outer edge of the correction disk (25), the correction motor (21) drives the worm (221), the worm (221) is meshed with the worm wheel (222), and the transmission gear (223) is meshed with the ring gear (24).

3. The impeller concentricity correction workbench according to claim 1, characterized in that: A hanging rail (132) is provided at the bottom of the transfer beam (13), a rack (133) is provided on the bottom surface of the hanging rail (132), transfer rollers (32) are symmetrically provided on the transfer trolley (3), the transfer rollers (32) roll on both sides of the hanging rail (132), a transfer motor (30) is provided on the transfer trolley (3), a transfer gear (31) is rotatably connected in the transfer trolley (3), and the transfer gear (31) is meshed with the rack (133).

4. The impeller concentricity correction workbench according to claim 1, characterized in that: A counterweight block (121) is provided at one end of the cross beam (12) opposite to the transfer beam (13); the other end of the transfer beam (13) is rotatably connected to a bracket (14); a torsion spring is press-fitted between the bracket (14) and the transfer beam (13); legs (15) are symmetrically provided at both ends of the bracket (14); and universal wheels (16) are provided at the bottom ends of the legs (15).

5. The impeller concentricity correction workbench according to claim 1, characterized in that: The rotating seat (10) is provided with a positioning sleeve (101), a positioning column (103) is slidably connected in the positioning sleeve (101), the top of the positioning column (103) is provided with the first positioning rod (104), and a positioning spring (102) is pressed between the bottom of the positioning column (103) and the positioning sleeve (101).

6. The impeller concentricity correction workbench according to claim 1, characterized in that: The limit release mechanism is a scissor member (57), the scissor member (57) is a scissor structure, a torsion spring is provided in the scissor member (57), one end of the scissor member (57) is provided with a limit release groove, the limit block (56) is provided with a limit release column (561), and the limit release column (561) is slidably connected in the limit release groove.

7. The impeller concentricity correction workbench according to claim 1, characterized in that: The table top (23) has a circular array of universal balls (27), the universal balls (27) are located inside the correction wheel (26), a spring is press-fitted between the universal balls (27) and the table top (23), and the correction wheel (26) is in the shape of an inverted frustum.

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