Centrifugal wind wheel welding tool

Abstract

The utility model provides a centrifugal wind wheel welding tool, and belongs to the technical field of wind wheel welding. The problem that in the prior art, the number of wind wheel welding procedures is large is solved. The device comprises a base, an air cylinder, an upper positioning plate, a lower positioning plate, a center shaft and blades, a chuck is fixedly installed in the center of the base, the center shaft penetrates through the upper positioning plate and the lower positioning plate and is fixedly connected with the chuck, a plurality of fixing plates are formed on the base, the air cylinder is connected with the fixing plates, and a first inner clamping plate and a second inner clamping plate are fixedly arranged on the center shaft in a sleeved mode. The first inner clamping plate is attached to the second inner clamping plate, a first clamping groove and a second clamping groove are formed in the first inner clamping plate and the second inner clamping plate respectively, and the blade is installed between the upper positioning plate and the lower positioning plate and connected with the first clamping groove and the second clamping groove. A positioning pin is fixed to the first inner clamping plate and the second inner clamping plate in a penetrating mode and connected with the chuck. The utility model has the advantages that the blade positioning requirement is met, the performance of the wind wheel is ensured, the shaking of the wind wheel during operation is reduced, and the welding deformation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind wheel welding, and relates to a centrifugal wind wheel welding tooling. Background Art

[0002] When welding a steel plate or aluminum alloy centrifugal wind wheel, it is difficult to position the blades. Especially for a wind wheel structure without slot holes, it is easy to deform after welding.

[0003] Chinese Patent with the publication number CN209223479U discloses a fan impeller welding tooling, including: a base, a cylinder body, a plurality of ear seats, a plurality of connecting rods. The cylinder body includes an outer cylinder body, an outer cylinder body fixing device, an inner cylinder body. The top end of the connecting rod is horizontally provided with a screw II, and the screw II passes through the ear seat and is locked and fixed by a nut. A clamping block is installed at the lower end of the connecting rod. A clamping groove is arranged vertically in the clamping block, and the width of the clamping groove matches the thickness of the blade of the fan impeller. When the connecting rod swings downward, the upper end of the blade is inserted into the clamping groove; and a plurality of arc grooves are evenly arranged at intervals along the circumferential direction at the bottom of the cylinder body, and the shape of the arc groove matches the shape of the bottom of the blade.

[0004] The fan impeller welding tooling provided by this patent positions the blade installation through the clamping groove, and there will be an additional slotting process during production. The utility model can perform the welding positioning of the impeller through a structure without a clamping groove. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a centrifugal wind wheel welding tooling for the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A centrifugal wind wheel welding tooling, including a base, a cylinder, an upper positioning plate, a lower positioning plate, a central shaft and blades. A chuck is fixedly installed at the center of the base. The central shaft passes through the upper positioning plate and the lower positioning plate and is fixedly connected with the chuck. A plurality of fixing plates are formed on the base. The cylinder is connected with the fixing plate. A first inner clamping plate and a second inner clamping plate are sleeved and fixed on the central shaft. The first inner clamping plate and the second inner clamping plate are attached to each other. A first clamping groove and a second clamping groove are respectively formed on the first inner clamping plate and the second inner clamping plate. The blade is installed between the upper positioning plate and the lower positioning plate and the blade is connected with the first clamping groove and the second clamping groove. A positioning pin is fixedly installed through the first inner clamping plate and the second inner clamping plate and the positioning pin is connected with the chuck.

[0007] In the above-mentioned centrifugal wind wheel welding tooling, a threaded groove is formed at one end of the central shaft, and a large nut is fixed on the threaded groove.

[0008] In the above-mentioned centrifugal wind wheel welding tool, an upper clamping head is fixedly mounted on the cylinder, a lower clamping head is fixedly mounted on one side of the cylinder, and a rubber block is formed on the lower clamping head.

[0009] In the above-mentioned centrifugal wind wheel welding tool, an air guide plate is fixedly installed inside the upper positioning plate, and the upper positioning plate is provided with a plurality of through air guide holes.

[0010] In the above-mentioned centrifugal wind wheel welding tool, a pad is connected to one side of the lower positioning plate.

[0011] Compared with the prior art, the centrifugal wind wheel welding tooling provided by the utility model has the following beneficial effects: 1. The first inner clamping plate, the second inner clamping plate and the positioning pin are combined to fix the inner side positioning of the blade and meet the problem of tooling disassembly after the wind wheel is welded; 2. The cylinder, the upper clamping head and the lower clamping head are used in combination to fix the outer side positioning of the blade, and the rubber block on the lower clamping head can prevent damage to the blade during clamping; 3. The lower positioning plate, the upper positioning plate and the center axis are combined to control the coaxiality of the outer circle of the wind wheel and the front and rear disks of the impeller, and control the deformation of the wind wheel, meet the coaxiality requirements of the front and rear disks of the wind wheel, reduce the axial and radial runout of the wind wheel, and reduce the shaking of the wind wheel during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0014] In the figure: 1. Base; 110. Fixing plate; 2. Cylinder; 210. Upper clamping head; 220. Lower clamping head; 230. Rubber block; 3. Upper positioning plate; 310. Air guide hole; 4. Lower positioning plate; 5. Center axis; 6. Blade; 7. Chuck; 8. First inner clamping plate; 810. First clamping groove; 9. Second inner clamping plate; 910. Second clamping groove; 10. Positioning pin; 11. Large nut; 12. Air guide plate; 13. Pad. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figures 1 to 2As shown in the figure, this embodiment includes a base 1, a cylinder 2, an upper positioning plate 3, a lower positioning plate 4, and a central shaft 5. A chuck 7 is fixedly installed at the center of the base 1. One end of the chuck 7 extends out of the base 1 and is fitted into the center of the base 1. The central shaft 5 passes through the centers of the upper positioning plate 3 and the lower positioning plate 4 and is fixedly connected to the center of the chuck 7. The first inner clamping plate 8 and the second inner clamping plate 9 are sleeved and fixed on the central shaft 5, and the first inner clamping plate 8 and the second inner clamping plate 9 are in contact with each other. The first inner clamping plate 8 and the second inner clamping plate 9 are respectively provided with a first clamping groove 810 and a second clamping groove 910. The blade 6 is placed between the upper positioning plate 3 and the lower positioning plate 4, and the inner side of the blade 6 is clamped and fixed through the first clamping groove 810 and the second clamping groove 910. A positioning pin 10 is fixedly installed through the first inner clamping plate 8 and the second inner clamping plate 9, and the positioning pin 10 is connected to the chuck 7. The first clamping groove 810, the second clamping groove 910, and the positioning pin 10 on the first inner clamping plate 8 and the second inner clamping plate 9 cooperate with each other to position and fix the inner side of the blade 6.

[0017] As Figures 1 to 2 shown, a number of fixing plates 110 are formed on the base 1. The fixing plates 110 are arranged in a circumferential array. One end of the cylinder 2 is fixedly connected to the fixing plate 110, and the other end of the cylinder 2 is slidably connected to the fixing plate 110. An upper clamping head 210 is fixedly installed on the cylinder 2. A lower clamping head 220 is fixedly installed on one side of the cylinder 2. A rubber block 230 is formed on the lower clamping head 220. The upper clamping head 210 and the lower clamping head 220 are located outside the blade 6, and the upper clamping head 210 and the lower clamping head 220 are respectively located at the upper and lower ends outside the blade 6. The upper clamping head 210 and the lower clamping head 220 are controlled by the cylinder 2 to clamp and position the outside of the blade 6. The rubber block 230 on the lower clamping head 220 can play a protective role during clamping to prevent damage to the outside of the blade 6 caused by clamping.

[0018] Further details are as follows. As Figures 1 to 2 shown, the central shaft 5 extends out of the upper positioning plate 3, and a threaded groove is formed at one end of the central shaft 5 extending out of the upper positioning plate 3. A large nut 11 is connected to the central shaft 5 through the threaded groove, and the large nut 11 is fixedly attached to one side of the upper positioning plate 3 to fix the upper positioning plate 3.

[0019] Further details are as follows. As Figures 1 to 2 shown, a wind guiding plate 12 is fixedly installed inside the upper positioning plate 3. The upper positioning plate 3 is provided with a number of through wind guiding holes 310. The wind guiding holes 310 and the wind guiding plate 12 play a role in guiding wind. A cushion plate 13 is connected between the lower positioning plate 4 and the base 1. The cushion plate 13 plays an effect of buffering and shock absorption.

[0020] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0021] Although various terms are used more frequently herein, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A centrifugal impeller welding tooling, comprising a base (1), a cylinder (2), an upper positioning plate (3), a lower positioning plate (4), a central shaft (5) and blades (6), characterized in that: A chuck (7) is fixedly installed at the center of the base (1). The central shaft (5) passes through the upper positioning plate (3) and the lower positioning plate (4) and is fixedly connected to the chuck (7). A number of fixed plates (110) are formed on the base (1). The cylinder (2) is connected to the fixed plate (110). A first inner clamping plate (8) and a second inner clamping plate (9) are sleeved and fixed on the central shaft (5). The first inner clamping plate (8) and the second inner clamping plate (9) are in contact with each other. A first clamping groove (810) and a second clamping groove (910) are respectively formed on the first inner clamping plate (8) and the second inner clamping plate (9). The blade (6) is installed between the upper positioning plate (3) and the lower positioning plate (4) and the blade (6) is connected to the first clamping groove (810) and the second clamping groove (910). A positioning pin (10) is passed through and fixed on the first inner clamping plate (8) and the second inner clamping plate (9), and the positioning pin (10) is connected to the chuck (7).

2. The centrifugal impeller welding tooling according to claim 1, characterized in that: A threaded groove is formed at one end of the central shaft (5), and a large nut (11) is fixed on the threaded groove.

3. The centrifugal impeller welding tooling according to claim 1, characterized in that: An upper clamping head (210) is fixedly installed on the cylinder (2), and a lower clamping head (220) is fixedly installed on one side of the cylinder (2). A rubber block (230) is formed on the lower clamping head (220).

4. A centrifugal impeller welding tooling according to claim 1, characterized in that: An air guide plate (12) is fixedly installed inside the upper positioning plate (3), and a number of through air guide holes (310) are formed on the upper positioning plate (3).

5. The centrifugal impeller welding tooling according to claim 1, wherein: A cushion plate (13) is connected to one side of the lower positioning plate (4).

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