Welding tool for manufacturing centrifugal fan impeller

Abstract

The invention relates to the technical field of centrifugal fan welding, in particular to a centrifugal fan impeller manufacturing and welding tool which comprises a table top, two sets of symmetrical first supporting plates are fixedly connected to the upper end of the table top, and a first electric telescopic rod is installed on one side of one set of first supporting plates; the bottom end of the first electric telescopic rod is rotationally connected with the first supporting plate, a three-jaw chuck is installed on an output shaft of the first electric telescopic rod, clamping jaws of the three-jaw chuck are movably connected with a front disc, and movable welding mechanisms are arranged at the positions, close to the front end and the rear end, of the upper end of the table top. The front disc and the rear disc are clamped and fixed through the two sets of three-jaw chucks and can be flexibly adjusted according to the diameters of the two sets of three-jaw chucks, the adaptation rate of the device is improved, one set of rear disc three-jaw chucks with impellers are fixed through the second connecting shaft, the other set of three-jaw chucks fixed through the first electric telescopic rod enable the front disc and the rear disc to be aligned through extension of the output shafts of the three-jaw chucks, and therefore the impeller is fixed. The time cost is saved; and the manual labor intensity is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal fan welding, and specifically relates to a welding tooling for manufacturing the impeller of a centrifugal fan. Background Technique

[0002] The centrifugal fan is a core component of industrial equipment. The welding quality of its impeller is directly related to the performance and service life of the whole machine. In some special usage environments, special processes such as welding are required to ensure the quality and reliability of the impeller. Welding technology can increase the material strength and anti-wear performance of the impeller, improve the durability of the impeller. At the same time, it can also repair the damaged parts of the impeller, extend the service life of the impeller, and reduce the maintenance cost.

[0003] The existing welding tooling for manufacturing the impeller of a centrifugal fan needs to manually adjust the fixing components multiple times, resulting in redundant operation steps, long time consumption, and poor adaptability to multiple specifications. The existing tooling is mostly designed for specific impeller sizes and is difficult to flexibly accommodate impellers of different diameters, resulting in low equipment utilization rate. The slag inclusion, lack of fusion, etc. generated after the welding work is completed affect the overall quality of the centrifugal fan. The grinding work requires manual replacement of facilities, increasing the labor intensity of workers. After grinding, the outer side will be contaminated with oil or other impurities, affecting the welding quality. The slag generated after grinding cannot be cleaned in time, affecting the work process. Therefore, we propose a welding tooling for manufacturing the impeller of a centrifugal fan. Summary of the Invention

[0004] In order to make up for the deficiencies of the existing technology and solve at least one of the technical problems proposed in the background technique, the present invention proposes a welding tooling for manufacturing the impeller of a centrifugal fan.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a welding tooling for manufacturing the impeller of a centrifugal fan, including a tabletop. Two groups of symmetrically arranged first support plates are fixedly connected to the upper end of the tabletop. A first electric telescopic rod is installed on one side of a group of first support plates. The bottom end of the first electric telescopic rod is rotatably connected to the first support plate. A set of three-jaw chucks is installed on the output shaft of the first electric telescopic rod. The jaws of the three-jaw chucks are movably connected to a front disc. A mobile welding mechanism is arranged at positions near the front and rear ends of the upper end of the tabletop. A second support plate is fixedly connected to the upper end of the tabletop. A grinding and cleaning mechanism is arranged on the upper end of the second support plate. The grinding and cleaning mechanism includes a second connecting shaft. Another set of three-jaw chucks is installed at one end of the second connecting shaft. The jaws of the three-jaw chucks are movably connected to a rear disc with an impeller. A cleaning mechanism is arranged on one side of the second support plate at the upper end of the tabletop.

[0006] Preferably, the mobile welding mechanism includes two groups of first fixing plates fixedly connected to the tabletop. On the side where the two groups of first fixing plates are close to each other, two groups of first sliding rods are fixedly connected in common. A first slider is slidably connected to the outside of the two groups of first sliding rods. A second electric telescopic rod is arranged inside one of the two groups of first fixing plates, and the output shaft of the second electric telescopic rod is fixedly connected to the first slider.

[0007] Preferably, a third electric telescopic rod is installed at the upper end of the first slider. The output shaft of the third electric telescopic rod is fixedly connected to a second slider. Two groups of second sliding rods are slidably connected to the inside of the second slider. The lower ends of the two groups of second sliding rods are fixedly connected to the first slider, and the upper ends of the two groups of second sliding rods are fixedly connected to limit blocks.

[0008] Preferably, a fourth electric telescopic rod is installed at the front end of one of the second sliders. The output shaft of the fourth electric telescopic rod is fixedly connected to a third slider. Two groups of third sliding rods are slidably connected to the inside of the third slider. The front and rear ends of the two groups of third sliding rods are fixedly connected to the two groups of second sliders. A welding machine box is installed at the upper end of the third slider. A welding head is installed at the lower end of the welding machine box through a cable. A fifth electric telescopic rod is installed on one side of the welding machine box. The output shaft of the fifth electric telescopic rod is fixedly connected to a first connecting plate, and the inside of the first connecting plate is fixedly connected to the welding head.

[0009] Preferably, the grinding and cleaning mechanism further includes a first motor installed on one side of the first support plate. The output shaft of the first motor is fixedly connected to a first connecting shaft. A first gear is fixedly connected to the outside of the first connecting shaft. A first chain is rotatably connected to the outside of the first gear. A second gear is rotatably connected to the inside of the first chain. The inside of the second gear is fixedly connected to a second connecting shaft. The other end of the second connecting shaft is rotatably connected to the first support plate. A second chain is rotatably connected to one side of the first chain outside the second gear. A third gear is rotatably connected to the inside of the second chain. The inside of the third gear is fixedly connected to a third connecting shaft. An L-shaped plate is rotatably connected to a position near the middle of the outside of the third connecting shaft. The third connecting shaft penetrates through the L-shaped plate. A cleaning agent box is rotatably connected to the outside of the L-shaped plate. The lower end of the cleaning agent box is fixedly connected to the second support plate. Two groups of blades are fixedly connected to the inside of the cleaning agent box on the outside of the third connecting shaft.

[0010] Preferably, the grinding and cleaning mechanism further includes a sixth electric telescopic rod installed on the other side of the welding machine case. The output shaft of the sixth electric telescopic rod is fixedly connected to a second connecting plate. The lower end of the second connecting plate is rotatably connected to a third connecting plate through a rotating shaft. One side of the third connecting plate is provided with a second motor. The lower end of the third connecting plate is rotatably connected to a fourth gear. The output shaft of the second motor is fixedly connected to the fourth gear. The outer side of the fourth gear is rotatably connected to a third chain. The inner side of the third chain is rotatably connected to a fifth gear. One end of the fifth gear is rotatably connected to the third connecting plate, and the other end of the fifth gear is fixedly connected to a grinding head.

[0011] Preferably, a fourth chain is rotatably connected to one side of the third chain on the outer side of the fifth gear. The inner side of the fourth chain is rotatably connected to a sixth gear. The inner side of the sixth gear is fixedly connected to an arc-shaped soft brush, and multiple arc-shaped brush blocks are arranged on the outer side of the arc-shaped soft brush.

[0012] Preferably, a suction pump is installed on the other side of the cleaner tank. The output port of the suction pump is fixedly connected to a hose, and the other end of the hose is rotatably connected to the inner side of the arc-shaped soft brush.

[0013] Preferably, the lower end of the second connecting plate is rotatably connected to a connecting cylinder through a rotating shaft. The lower end of the connecting cylinder is provided with a seventh electric telescopic rod. The output shaft of the seventh electric telescopic rod is fixedly connected to a ball. A sliding groove is formed in the inner side of the third connecting plate, and the ball is slidably connected to the inner side of the sliding groove.

[0014] Preferably, the cleaning mechanism includes two second fixing plates fixedly connected to the tabletop. The fourth sliding rod is fixedly connected to the closer sides of one group of the second fixing plates. A sweeping rod is slidably connected to the outer side of the fourth sliding rod. A reciprocating lead screw is threadedly connected to the inner side of the sweeping rod. The two ends of the reciprocating lead screw are rotatably connected to the other group of second fixing plates. One end of the reciprocating lead screw is fixedly connected to a seventh gear. The outer side of the seventh gear is rotatably connected to a fifth chain. The inner side of the fifth chain is rotatably connected to an eighth gear. One end of the eighth gear is fixedly connected to the first gear.

[0015] Compared with the prior art, the present invention provides a welding tooling for manufacturing the impeller of a centrifugal ventilator, having the following beneficial effects:

[0016] 1. The front disc and the rear disc are clamped and fixed by two groups of three-jaw chucks, and can be flexibly adjusted according to their diameters, improving the adaptability rate of the device. A rear disc three-jaw chuck with an impeller is fixed by the second connecting shaft. The three-jaw chuck fixed by the first electric telescopic rod in the other group aligns the front disc and the rear disc by extending its output shaft, enabling the device to adjust according to the thickness of the front and rear discs, saving time cost and reducing the labor intensity of workers. The output shafts of the second electric telescopic rod and the third electric telescopic rod stretch and drive the first slider to move, and the welding head can be adjusted according to the position of the welding joint, so that the welding head is always above the welding joint. The output shafts of the fourth electric telescopic rod and the fifth electric telescopic rod stretch and cooperate to drive the welding head to move, enabling the welding head to be adjusted according to the position of the weld seam, moving in an arc shape and welding the weld seam.

[0017] 2. When the seventh electric telescopic rod extends to drive the ball to slide inside the third connecting plate, the third connecting plate can drive the grinding head to form a certain angle, which is convenient for the grinding head to grind the weld seam. By driving the second motor to operate to drive the grinding head to rotate, and through the telescopic cooperation of the output shafts of the fourth electric telescopic rod and the sixth electric telescopic rod, substances such as slag inclusion and lack of fusion that affect the overall quality of the centrifugal ventilator after welding are ground, making the surface of the weld seam smoother and improving the overall quality of the centrifugal ventilator. The arc-shaped soft brush drives a plurality of rotating arc-shaped brush blocks to rotate and clean the debris generated after grinding. The pump pumps the cleaner in the cleaner tank and flows out from the hose to wash the weld seam, and further improves the cleaning quality by rotating in cooperation with the arc-shaped soft brush. When the grinding and cleaning are completed, the output shaft of the seventh electric telescopic rod can also retract to facilitate subsequent welding.

[0018] 3. By driving the first motor to operate to drive the second connecting shaft to rotate, after welding one group, the three-jaw chuck is driven to rotate, which is convenient for the next group of welding. By driving the first motor to operate to drive the three-jaw chuck to rotate, the second gear cooperates with the third gear to drive the third connecting shaft to rotate. The rotation of the third connecting shaft drives two groups of blades to rotate and stir the cleaner in the cleaner tank, improving the operating efficiency of the device. The first gear rotates and cooperates with the reciprocating lead screw to drive the sweeping rod to move repeatedly, cleaning substances such as welding slag and slipping cleaner generated during welding that fall on the surface of the tabletop, and falling into the groove at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention;

[0020] Figure 2 is a schematic sectional view of the overall structure of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention;

[0021] Figure 3 is a schematic diagram of a partial structure of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present inventionFigure 1 ;

[0022] Figure 4 Partial structural sectional view schematic of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention Figure 1 ;

[0023] Figure 5 Partial structural schematic of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention Figure 2 ;

[0024] Figure 6 Partial structural sectional view schematic of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention Figure 2 ;

[0025] Figure 7 Partial structural sectional view schematic of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention Figure 3 ;

[0026] Figure 8 Partial structural schematic of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention Figure 3 ;

[0027] Figure 9 Partial structural schematic of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention Figure 4 ;

[0028] Figure 10 Schematic diagram of the structure of the object of operation of a welding tooling for manufacturing an impeller of a centrifugal ventilator proposed by the present invention.

[0029] In the figure: 1, tabletop; 2, first support plate; 3, first electric telescopic rod; 4, three-jaw chuck; 5, mobile welding mechanism; 51, first fixing plate; 52, first sliding rod; 53, first slider; 54, second electric telescopic rod; 55, third electric telescopic rod; 56, second slider; 57, second sliding rod; 58, limiting block; 59, fourth electric telescopic rod; 510, third slider; 511, third sliding rod; 512, welding machine box; 513, fifth electric telescopic rod; 514, first connecting plate; 515, welding head; 6, second support plate; 7, grinding and cleaning mechanism; 71, first motor; 72, first connecting shaft; 73, first gear; 74, first chain; 75, second gear; 76, second connecting shaft; 77, second chain; 78, third gear; 79, third connecting shaft; 710, blade; 711, L-shaped plate; 712, cleaner box; 713, pumping unit; 714, hose; 715, sixth electric telescopic rod; 716, second connecting plate; 717, third connecting plate; 718, second motor; 719, fourth gear; 720, third chain; 721, fifth gear; 722, grinding head; 723, fourth chain; 724, sixth gear; 725, arc-shaped soft brush; 726, arc-shaped brush block; 727, connecting cylinder; 728, seventh electric telescopic rod; 729, ball; 8, cleaning mechanism; 81, second fixing plate; 82, fourth sliding rod; 83, sweeping rod; 84, reciprocating lead screw; 85, seventh gear; 86, fifth chain; 87, eighth gear. Specific implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Please refer to Figures 1 - 10 , a welding tooling for manufacturing an impeller of a centrifugal ventilator, including a tabletop 1. Two groups of symmetric first support plates 2 are fixedly connected to the upper end of the tabletop 1. A first electric telescopic rod 3 is installed on one side of a group of first support plates 2. The bottom end of the first electric telescopic rod 3 is rotatably connected to the first support plate 2. The output shaft of the first electric telescopic rod 3 is installed with a group of three-jaw chucks 4. The jaws of the three-jaw chuck 4 are movably connected to a front disc. A mobile welding mechanism 5 is arranged at positions near the front and rear ends of the upper end of the tabletop 1. A second support plate 6 is fixedly connected to the upper end of the tabletop 1. A grinding and cleaning mechanism 7 is arranged at the upper end of the second support plate 6. The grinding and cleaning mechanism 7 includes a second connecting shaft 76. Another group of three-jaw chucks 4 is installed at one end of the second connecting shaft 76. The jaws of the three-jaw chuck 4 are movably connected to a rear disc with an impeller. A cleaning mechanism 8 is arranged on one side of the second support plate 6 at the upper end of the tabletop 1.

[0032] In this embodiment, the mobile welding mechanism 5 includes two groups of first fixing plates 51 fixedly connected to the tabletop 1. On the side where the two groups of first fixing plates 51 are close to each other, two groups of first sliding rods 52 are fixedly connected in common. A first sliding block 53 is slidably connected to the outer sides of the two groups of first sliding rods 52. A second electric telescopic rod 54 is arranged inside one of the two groups of first fixing plates 51. The output shaft of the second electric telescopic rod 54 is fixedly connected to the first sliding block 53.

[0033] Specifically, for the second electric telescopic rod 54 fixed by the first fixing plate 51 in the mobile welding mechanism 5, the second electric telescopic rod 54 drives the first sliding block 53 to slide on the outer sides of the two groups of first sliding rods 52 according to the position of the weld seam.

[0034] In this embodiment, a third electric telescopic rod 55 is installed at the upper end of the first sliding block 53. The output shaft of the third electric telescopic rod 55 is fixedly connected to a second sliding block 56. Two groups of second sliding rods 57 are slidably connected to the inside of the second sliding block 56. The lower ends of the two groups of second sliding rods 57 are fixedly connected to the first sliding block 53, and the upper ends of the two groups of second sliding rods 57 are fixedly connected to a limiting block 58.

[0035] Specifically, the third electric telescopic rod 55 at the upper end of the first sliding block 53 drives the second sliding block 56 to move on the outer sides of the two groups of second sliding rods 57 according to the expansion and contraction at the welding position, and the limiting block 58 limits the second sliding block 56 when it rises.

[0036] In this embodiment, a fourth electric telescopic rod 59 is installed at the front end of one group of second sliding blocks 56. The output shaft of the fourth electric telescopic rod 59 is fixedly connected to a third sliding block 510. Two groups of third sliding rods 511 are slidably connected to the inside of the third sliding block 510. The front and rear ends of the two groups of third sliding rods 511 are fixedly connected to the two groups of second sliding blocks 56. A welding machine box 512 is installed at the upper end of the third sliding block 510. A welding head 515 is installed at the lower end of the welding machine box 512 through a cable. A fifth electric telescopic rod 513 is installed on one side of the welding machine box 512. The output shaft of the fifth electric telescopic rod 513 is fixedly connected to a first connecting plate 514. The inside of the first connecting plate 514 is fixedly connected to the welding head 515.

[0037] Specifically, the two groups of second sliding blocks 56 together drive the third sliding block 510 on the outer sides of the two groups of third sliding rods 511 to be located above the welding position of the centrifuge impeller. The fourth electric telescopic rod 59 drives the welding head 515 to move to the welding position according to the expansion and contraction at the weld seam. Driving the fifth electric telescopic rod 513 to expand and contract drives the first connecting plate 514 to move. The first connecting plate 514 drives the welding head 515 installed by the welding machine box 512 through a cable to weld the gap near the outer side. The welding of the contact part between the impeller and the front disc is achieved through the coordinated expansion and contraction of the fourth electric telescopic rod 59 and the fifth electric telescopic rod 513.

[0038] In this embodiment, the grinding and cleaning mechanism 7 further includes a first motor 71 installed on one side of the first support plate 2. The output shaft of the first motor 71 is fixedly connected to a first connecting shaft 72. A first gear 73 is fixedly connected to the outside of the first connecting shaft 72. A first chain 74 is rotatably connected to the outside of the first gear 73. A second gear 75 is rotatably connected to the inside of the first chain 74. The inside of the second gear 75 is fixedly connected to a second connecting shaft 76. The other end of the second connecting shaft 76 is rotatably connected to the first support plate 2. A second chain 77 is rotatably connected to one side of the first chain 74 on the outside of the second gear 75. A third gear 78 is rotatably connected to the inside of the second chain 77. The inside of the third gear 78 is fixedly connected to a third connecting shaft 79. An L-shaped plate 711 is rotatably connected to a position near the middle on the outside of the third connecting shaft 79. The third connecting shaft 79 passes through the L-shaped plate 711. A cleaning agent box 712 is rotatably connected to the outside of the L-shaped plate 711. The lower end of the cleaning agent box 712 is fixedly connected to the second support plate 6. Two groups of blades 710 are fixedly connected to the inside of the cleaning agent box 712 on the outside of the third connecting shaft 79.

[0039] Specifically, the operation of the first motor 71 drives the first connecting shaft 72 to rotate. The first connecting shaft 72 drives the first gear 73 to rotate, which further drives the first chain 74 to rotate. The first chain 74 drives the second gear 75 to rotate on the outside of the second connecting shaft 76. The second connecting shaft 76 drives the rear disc with an impeller to rotate. While the second gear 75 rotates, it drives the second chain 77 to rotate. The second chain 77 drives the third gear 78 to rotate. The third gear 78 drives the third connecting shaft 79 to rotate. The third connecting shaft 79 drives the two groups of blades 710 on its outside to rotate and stir the cleaning agent inside the cleaning agent box 712. The L-shaped plate 711 is used to limit and fix the position of the third connecting shaft 79.

[0040] In this embodiment, the grinding and cleaning mechanism 7 further includes a sixth electric telescopic rod 715 installed on the other side of the welding machine box 512. The output shaft of the sixth electric telescopic rod 715 is fixedly connected to a second connecting plate 716. The lower end of the second connecting plate 716 is rotatably connected to a third connecting plate 717 through a rotating shaft. A second motor 718 is installed on one side of the third connecting plate 717. The lower end of the third connecting plate 717 is rotatably connected to a fourth gear 719. The output shaft of the second motor 718 is fixedly connected to the fourth gear 719. A third chain 720 is rotatably connected to the outside of the fourth gear 719. A fifth gear 721 is rotatably connected to the inside of the third chain 720. One end of the fifth gear 721 is rotatably connected to the third connecting plate 717. The other end of the fifth gear 721 is fixedly connected to a grinding head 722.

[0041] Specifically, drive the sixth electric telescopic rod 715 to extend, drive the second connecting plate 716 to move, drive the second motor 718 to operate and drive the fourth gear 719 to rotate. The rotation of the fourth gear 719 drives the third chain 720 to rotate. The third chain 720 drives the fifth gear 721 to rotate and further drives the grinding head 722 to rotate. The grinding head 722 grinds the welding joint through the telescopic cooperation with the output shafts of the fourth electric telescopic rod 59 and the sixth electric telescopic rod 715.

[0042] In this embodiment, a fourth chain 723 is rotatably connected to one side of the third chain 720 on the outer side of the fifth gear 721. A sixth gear 724 is rotatably connected to the inner side of the fourth chain 723. An arc-shaped soft brush 725 is fixedly connected to the inner side of the sixth gear 724. A plurality of arc-shaped brush blocks 726 are arranged on the outer side of the arc-shaped soft brush 725.

[0043] Specifically, when the fifth gear 721 rotates, it drives the fourth chain 723 to rotate. The fourth chain 723 drives the sixth gear 724 to rotate. The sixth gear 724 drives the arc-shaped soft brush 725 to rotate. The rotation of the arc-shaped soft brush 725 clears the debris after grinding. The rotation of the arc-shaped soft brush 725 drives a plurality of arc-shaped brush blocks 726 to rotate to further improve the cleaning effect.

[0044] In this embodiment, a suction pump 713 is installed on the other side of the cleaner tank 712. The output port of the suction pump 713 is fixedly connected to a hose 714. The other end of the hose 714 is rotatably connected to the inner side of the arc-shaped soft brush 725.

[0045] Specifically, drive the suction pump 713 to operate, and discharge the cleaner in the cleaner tank 712 fixed by the second support plate 6 through the hose 714 at one end of the inner side of the arc-shaped soft brush 725.

[0046] In this embodiment, the lower end of the second connecting plate 716 is rotatably connected to a connecting cylinder 727 through a rotating shaft. A seventh electric telescopic rod 728 is installed at the lower end of the connecting cylinder 727. A ball 729 is fixedly connected to the output shaft of the seventh electric telescopic rod 728. A chute is formed inside the third connecting plate 717. The ball 729 is slidably connected to the inside of the chute.

[0047] Specifically, the seventh electric telescopic rod 728 below the connecting cylinder 727 expands and contracts according to the height. The ball 729 on the output shaft of the seventh electric telescopic rod 728 slides in the chute inside the third connecting plate 717, causing the third connecting plate 717 to deflect a certain angle and drive the grinding head 722 to contact the welding joint.

[0048] In this embodiment, the cleaning mechanism 8 includes two groups of second fixing plates 81 fixedly connected to the tabletop 1. On one side where a group of second fixing plates 81 are close to each other, a fourth sliding rod 82 is fixedly connected. A sweeping rod 83 is slidably connected to the outer side of the fourth sliding rod 82. A reciprocating lead screw 84 is threadedly connected to the inner side of the sweeping rod 83. The two ends of the reciprocating lead screw 84 are rotatably connected to the other group of second fixing plates 81. One end of the reciprocating lead screw 84 is fixedly connected to a seventh gear 85. A fifth chain 86 is rotatably connected to the outer side of the seventh gear 85. An eighth gear 87 is rotatably connected to the inner side of the fifth chain 86. One end of the eighth gear 87 is fixedly connected to the first gear 73.

[0049] Specifically, the rotation of the eighth gear 87 drives the rotation of the fifth chain 86. The fifth chain 86 drives the rotation of the seventh gear 85. The seventh gear 85 drives the reciprocating lead screw 84 to rotate between the two groups of second fixing plates 81. The rotation of the reciprocating lead screw 84 drives the sweeping rod 83 to repeatedly move on the outer sides of the reciprocating lead screw 84 and the fourth sliding rod 82, so as to clean the welding slag generated during welding and the substances such as the slipping cleaning agent that fall on the surface of the tabletop 1.

[0050] Working principle: When in use, the rear disc with an impeller is clamped according to its diameter by a set of three-jaw chucks 4, and the front disc is clamped by another set of three-jaw chucks 4. Then, the first electric telescopic rods 3 on one side of the two groups of first support plates 2 at the upper end of the driving table 1 are extended to align and contact the front disc and the rear disc. After that, the second electric telescopic rod 54 fixed by the first fixing plate 51 in the moving welding mechanism 5 is driven. The second electric telescopic rod 54 drives the first slider 53 to slide outside the two groups of first sliding rods 52 according to the position of the weld seam. The third electric telescopic rod 55 at the upper end of the first slider 53 drives the second slider 56 to move outside the two groups of second sliding rods 57 according to the welding position. The two second sliders 56 together drive the third slider 510 outside the two groups of third sliding rods 511 to be located above the welding position of the centrifuge impeller. The limiting block 58 limits the upward movement of the second slider 56. The fourth electric telescopic rod 59 drives the welding head 515 to move to the welding position according to the weld seam, and then the fifth electric telescopic rod 513 is driven to extend and retract to drive the first connecting plate 514 to move. The first connecting plate 514 drives the welding head 515 installed by the welding machine box 512 through a cable to weld the gap near the outside. The fourth electric telescopic rod 59 and the fifth electric telescopic rod 513 cooperate in extension and retraction to weld the contact area between the impeller and the front disc. After welding, the sixth electric telescopic rod 715 located on one side of the welding machine box 512 in the grinding and cleaning mechanism 7 is extended to drive the second connecting plate 716 to move. After that, the seventh electric telescopic rod 728 below the connecting cylinder 727 extends and retracts according to the height. The ball 729 on the output shaft of the seventh electric telescopic rod 728 slides in the chute in the third connecting plate 717, causing the third connecting plate 717 to deflect at a certain angle to drive the grinding head 722 to contact the welding area. The second motor 718 is driven to operate to drive the fourth gear 719 to rotate. The fourth gear 719 rotates to drive the third chain 720 to rotate. The third chain 720 drives the fifth gear 721 to rotate, which further drives the grinding head 722 to rotate. The welding area is ground through the cooperation of the extension and retraction of the output shafts of the fourth electric telescopic rod 59 and the sixth electric telescopic rod 715. While the fifth gear 721 rotates, it drives the fourth chain 723 to rotate. The fourth chain 723 drives the sixth gear 724 to rotate. The sixth gear 724 drives the arc-shaped soft brush 725 to rotate. The arc-shaped soft brush 725 rotates to clean the debris after grinding. The arc-shaped soft brush 725 drives multiple arc-shaped brush blocks 726 to rotate to further improve the cleaning effect. At the same time, the pumping unit 713 is driven to operate to discharge the cleaning agent in the cleaning agent box 712 fixed by the second support plate 6 through the hose 714 at one end inside the arc-shaped soft brush 725. The arc-shaped soft brush 725 and the arc-shaped brush blocks 726 are used to clean the impurities around the weld seam. The output shaft of the seventh electric telescopic rod 728 is driven to retract again to drive the third connecting plate 717 to approach the horizontal. The second motor 718 passes through the groove opened in the second connecting plate 716 and penetrates inside it. After that, the output shafts of the two groups of third electric telescopic rods 55 are driven to extend to drive the third slider 510 to rise to facilitate subsequent work. The first motor 71 is driven,The operation of the first motor 71 drives the rotation of the first connecting shaft 72. The first connecting shaft 72 drives the rotation of the first gear 73, which further drives the rotation of the first chain 74. One end of the second connecting shaft 76 is rotatably connected to the first support plate 2. The first chain 74 drives the second gear 75 to rotate outside the second connecting shaft 76. The second connecting shaft 76 drives the rear disc with the impeller to rotate. At the same time, the rear disc drives the front disc to rotate through the weld seam after welding. The front disc rotates by the rotation of the bottom end of the first electric telescopic rod 3 rotatably connected to the first support plate 2. Then, the output shafts of the two groups of third electric telescopic rods 55 are retracted to drive the third sliders 510 to descend for welding the contact surface between the next group of impellers and the front disc. While the second gear 75 rotates, it drives the second chain 77 to rotate. The second chain 77 drives the third gear 78 to rotate. The third gear 78 drives the third connecting shaft 79 to rotate. The third connecting shaft 79 drives the two groups of blades 710 outside it to stir the cleaner in the cleaner tank 712. The L-shaped plate 711 is used to limit and fix the position of the third connecting shaft 79. When the first gear 73 rotates, it drives the eighth gear 87 in the cleaning mechanism 8 at one end to rotate. The eighth gear 87 rotates to drive the fifth chain 86 to rotate. The fifth chain 86 drives the seventh gear 85 to rotate. The seventh gear 85 drives the reciprocating lead screw 84 to rotate between the two groups of second fixing plates 81. The reciprocating lead screw 84 rotates to drive the sweeping rod 83 to move repeatedly outside the reciprocating lead screw 84 and the fourth slide rod 82, cleaning the welding slag generated during welding and the slipping cleaner and other substances that fall on the surface of the table 1, and sliding them to the bottom through the groove.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding tooling for manufacturing the impeller of a centrifugal fan, including a tabletop (1), characterized in that: Two symmetric first support plates (2) are fixedly connected to the upper end of the tabletop (1). A first electric telescopic rod (3) is installed on one side of a group of the first support plates (2). The bottom end of the first electric telescopic rod (3) is rotatably connected to the first support plate (2). A set of three-jaw chucks (4) is installed on the output shaft of the first electric telescopic rod (3). The jaws of the three-jaw chucks (4) are movably connected to a front disc. A mobile welding mechanism (5) is arranged at positions near the front and rear ends of the upper end of the tabletop (1). A second support plate (6) is fixedly connected to the upper end of the tabletop (1). A grinding and cleaning mechanism (7) is arranged at the upper end of the second support plate (6). The grinding and cleaning mechanism (7) includes a second connecting shaft (76). Another set of three-jaw chucks (4) is installed at one end of the second connecting shaft (76). The jaws of the three-jaw chucks (4) are movably connected to a rear disc with an impeller. A cleaning mechanism (8) is arranged on one side of the second support plate (6) at the upper end of the tabletop (1).

2. The welding tooling for manufacturing the impeller of a centrifugal ventilator according to claim 1, characterized in that: The mobile welding mechanism (5) includes two first fixing plates (51) fixedly connected to the tabletop (1). Two first sliding rods (52) are fixedly connected to the closer sides of the two first fixing plates (51). A first slider (53) is slidably connected to the outer sides of the two first sliding rods (52). A second electric telescopic rod (54) is arranged inside one of the two first fixing plates (51). The output shaft of the second electric telescopic rod (54) is fixedly connected to the first slider (53).

3. A welding tooling for manufacturing the impeller of a centrifugal fan according to claim 2, characterized in that: A third electric telescopic rod (55) is installed on the upper end of the first slider (53). The output shaft of the third electric telescopic rod (55) is fixedly connected to a second slider (56). Two second sliding rods (57) are slidably connected to the inside of the second slider (56). The lower ends of the two second sliding rods (57) are fixedly connected to the first slider (53). Limit blocks (58) are fixedly connected to the upper ends of the two second sliding rods (57).

4. A welding tooling for manufacturing an impeller of a centrifugal fan according to claim 3, characterized in that: A fourth electric telescopic rod (59) is installed at the front end of a group of the second sliders (56). The output shaft of the fourth electric telescopic rod (59) is fixedly connected to a third slider (510). Two third sliding rods (511) are slidably connected to the inside of the third slider (510). The front and rear ends of the two third sliding rods (511) are fixedly connected to the two second sliders (56). A welding machine box (512) is installed on the upper end of the third slider (510). A welding head (515) is installed at the lower end of the welding machine box (512) through a cable. A fifth electric telescopic rod (513) is installed on one side of the welding machine box (512). The output shaft of the fifth electric telescopic rod (513) is fixedly connected to a first connecting plate (514). The inside of the first connecting plate (514) is fixedly connected to the welding head (515).

5. A welding tooling for manufacturing an impeller of a centrifugal ventilator according to claim 1, characterized in that: The grinding and cleaning mechanism (7) further includes a first motor (71) installed on one side of the first support plate (2). The output shaft of the first motor (71) is fixedly connected to a first connecting shaft (72). A first gear (73) is fixedly connected to the outside of the first connecting shaft (72). A first chain (74) is rotatably connected to the outside of the first gear (73). A second gear (75) is rotatably connected to the inside of the first chain (74). The inside of the second gear (75) is fixedly connected to a second connecting shaft (76). The other end of the second connecting shaft (76) is rotatably connected to the first support plate (2). A second chain (77) is rotatably connected to one side of the first chain (74) on the outside of the second gear (75). A third gear (78) is rotatably connected to the inside of the second chain (77). A third connecting shaft (79) is fixedly connected to the inside of the third gear (78). An L-shaped plate (711) is rotatably connected to a position near the middle of the outside of the third connecting shaft (79). The third connecting shaft (79) passes through the L-shaped plate (711). A cleaning agent box (712) is rotatably connected to the outside of the L-shaped plate (711). The lower end of the cleaning agent box (712) is fixedly connected to the second support plate (6). Two groups of blades (710) are fixedly connected to the inside of the cleaning agent box (712) on the outside of the third connecting shaft (79).

6. The welding tooling for manufacturing the impeller of a centrifugal fan according to claim 1, wherein: The grinding and cleaning mechanism (7) further includes a sixth electric telescopic rod (715) installed on the other side of the welding machine box (512). The output shaft of the sixth electric telescopic rod (715) is fixedly connected to a second connecting plate (716). The lower end of the second connecting plate (716) is rotatably connected to a third connecting plate (717) through a rotating shaft. A second motor (718) is installed on one side of the third connecting plate (717). The lower end of the third connecting plate (717) is rotatably connected to a fourth gear (719). The output shaft of the second motor (718) is fixedly connected to the fourth gear (719). A third chain (720) is rotatably connected to the outside of the fourth gear (719). A fifth gear (721) is rotatably connected to the inside of the third chain (720). One end of the fifth gear (721) is rotatably connected to the third connecting plate (717). The other end of the fifth gear (721) is fixedly connected to a grinding head (722).

7. A welding tooling for manufacturing an impeller of a centrifugal fan according to claim 6, characterized in that: A fourth chain (723) is rotatably connected to one side of the third chain (720) on the outside of the fifth gear (721). A sixth gear (724) is rotatably connected to the inside of the fourth chain (723). An arc-shaped soft brush (725) is fixedly connected to the inside of the sixth gear (724). A plurality of arc-shaped brush blocks (726) are arranged on the outside of the arc-shaped soft brush (725).

8. A welding tooling for manufacturing an impeller of a centrifugal fan according to claim 5, characterized in that: A suction pump (713) is installed on the other side of the cleaning agent box (712). The output port of the suction pump (713) is fixedly connected to a hose (714). The other end of the hose (714) is rotatably connected to the inside of the arc-shaped soft brush (725).

9. A welding tooling for manufacturing an impeller of a centrifugal fan according to claim 6, characterized in that: The lower end of the second connecting plate (716) is rotatably connected to a connecting cylinder (727) through a rotating shaft. A seventh electric telescopic rod (728) is installed at the lower end of the connecting cylinder (727). The output shaft of the seventh electric telescopic rod (728) is fixedly connected to a ball (729). A sliding groove is formed inside the third connecting plate (717), and the ball (729) is slidably connected inside the sliding groove.

10. A welding tooling for manufacturing the impeller of a centrifugal fan according to claim 1, characterized in that: The cleaning mechanism (8) includes two second fixing plates (81) fixedly connected to the tabletop (1). A fourth sliding rod (82) is fixedly connected to the adjacent sides of a group of the second fixing plates (81). A sweeping rod (83) is slidably connected to the outer side of the fourth sliding rod (82). A reciprocating lead screw (84) is threadedly connected to the inner side of the sweeping rod (83). The two ends of the reciprocating lead screw (84) are rotatably connected to the other group of second fixing plates (81). One end of the reciprocating lead screw (84) is fixedly connected to a seventh gear (85). A fifth chain (86) is rotatably connected to the outer side of the seventh gear (85). An eighth gear (87) is rotatably connected to the inner side of the fifth chain (86). One end of the eighth gear (87) is fixedly connected to the first gear (73).

Images