Positioning device for machining axial flow fan

Abstract

The invention relates to the technical field of positioning equipment, and discloses a positioning device for axial flow fan machining, which comprises a support frame, two sliding plates sleeved on two sides of the support frame, and mounting plates on the two sliding plates, an output motor is mounted on one mounting plate, and a first pneumatic cylinder is mounted on the other mounting plate. According to the positioning device for machining the axial flow fan, a main gear is arranged in the middle of the top end of a first clamping base, the main gear is fixedly connected with the top end of a rolling wheel, first gears are arranged on the two sides of the main gear, the two first gears are meshed with the main gear, and second gears are arranged on the side edges of the two first gears; and the second gear is connected with the rolling wheel. A power motor connected with the top end of a main gear is started, the main gear drives a first gear and a second gear to rotate, two rolling wheels located on the side edge of the interior of a first clamping base and an attachment sleeve rotate in the same direction, the axial flow fan rotates, the positioned face is changed, and surface treatment and machining are conveniently conducted on the axial flow fan.

Description

Technical Field

[0001] The invention relates to the technical field of positioning equipment, in particular to a positioning device for machining an axial flow fan. Background Art

[0002] Axial flow fan is a common ventilation equipment. Its working principle is to inhale and discharge air along the axial direction through a rotating impeller. Since the gas enters and leaves the impeller axially, it is called an axial flow fan. This type of fan is usually used in situations where large air volume and low air pressure are required. Axial flow fans have a wide range of uses. They are a type of fan in which the airflow direction is in the same direction as the axis of the fan blades. For example, electric fans and air conditioner outdoor fans are axial flow fans. They are called "axial flow" because the gas flows parallel to the fan axis. Axial flow fans are usually used in situations where the flow requirements are higher and the pressure requirements are lower.

[0003] With the development of science and technology, corresponding positioning devices are often used in the production and processing of axial flow fans. Although the existing positioning devices have positioning and clamping functions in actual use, after the axial flow fan to be processed is fixed, the fixed surface cannot be changed. If the operator needs to process the fixed surface, it needs to be removed and positioned again. Although the operator can meet the operation requirements, the operation process is cumbersome, time-consuming and labor-intensive, so it needs to be improved.

[0004] The operator sets a main gear at the middle of the top of the No. 1 card seat, the main gear is fixedly connected to the top of the rolling wheel, sets a No. 1 gear on both sides of the main gear, two No. 1 gears mesh with the main gear, sets a No. 2 gear on the side of the two No. 1 gears, and the No. 2 gear is connected to the rolling wheel. Start the power motor connected to the top of the main gear, the main gear drives the No. 1 gear and the No. 2 gear to rotate, and the two rolling wheels and the attachment sleeve located on the inner side of the No. 1 card seat rotate in the same direction, so that the axial flow fan can rotate and change the positioning side, so as to facilitate surface treatment and processing. Summary of the invention

[0005] Technical problem to be solved: In view of the deficiencies in the prior art, the present invention provides a positioning device for machining an axial flow fan.

[0006] Technical solution: In order to achieve the above-mentioned solution purpose, the present invention provides the following technical solution: a positioning device for axial flow fan processing, comprising a support frame, two sliding plates sleeved on both sides of the support frame, and a mounting plate on the two sliding plates, an output motor is installed on the mounting plate, and a No. 1 pneumatic cylinder is installed on the other mounting plate, the output shaft of the output motor is connected to a No. 1 card seat, the interior of the No. 1 card seat is evenly provided with rolling wheels, the outer surface of the rolling wheel is sleeved with an attachment sleeve, the top of the rolling wheel is provided with a driving mechanism, the other end of the No. 1 pneumatic cylinder is connected to a No. 2 card seat, and the interior of the No. 2 card seat has the same structure as the interior of the No. 1 card seat.

[0007] Furthermore, the driving mechanism includes a main gear, the bottom end of the main gear is fixedly connected to the top end of the rolling wheel, a protective cover is installed on the top end of the No. 1 card seat, and the top end of the main gear penetrates the protective cover and is connected to a power motor.

[0008] Furthermore, a No. 1 gear is arranged on both sides of the main gear, and the two No. 1 gears are meshed with the main gear. A No. 2 gear is arranged on the sides of the two No. 1 gears, and the two No. 2 gears are connected to the rolling wheel.

[0009] Furthermore, the bottom end of the support frame is connected to a base, a clamping block is installed between the base and the support frame, a connecting plate located below the sliding plate is fixedly sleeved on the outer surface of the support frame, and long supporting blocks are installed on the left and right sides of the connecting plate.

[0010] Furthermore, a No. 2 pneumatic cylinder is fixedly installed in the middle of the connecting plate and is located between the two supporting long blocks. A driving motor is installed at the other end of the No. 2 pneumatic cylinder. Two round rods are connected to the internal movable sleeves on the front and rear sides of the No. 2 pneumatic cylinder, and discs are installed on the top ends of the two round rods.

[0011] Furthermore, a triangular cam is installed in the center of the disc, the output shaft of the driving motor passes through the disc and is fixedly connected to the bottom end of the triangular cam, and a hinge seat is movably connected to the periphery of the triangular cam.

[0012] Furthermore, the triangular cam is movably connected to three hinged seats on its periphery, and long rods are hinged inside the three hinged seats. A spring is sleeved on the outer surface of the long rod, one end of the spring is connected to the inside of the disc, and the other end of the spring is fixedly connected to the outer surface of the long rod, and one end of the long rod is connected to a gasket.

[0013] Furthermore, a screw rod is movably installed in the middle of the inner part of both sides of the connecting plate, and the two screw rods penetrate the two sliding plates and the top end of the support frame and extend to the outside of the top end of the support frame. The top ends of the two screw rods are installed with a second bevel gear.

[0014] Furthermore, a dual-axis motor is installed in the middle of the top of the support frame, and the output shafts on both sides of the dual-axis motor are sleeved with a first bevel gear, and the first bevel gear is meshed with a second bevel gear.

[0015] Furthermore, two fixed long plates are arranged on the outer surface of the first bevel gear, and the two fixed long plates are installed on the top end of the support frame.

[0016] Beneficial effects: Compared with the prior art, the present invention provides a positioning device for machining an axial flow fan, which has the following beneficial effects: 1. The positioning device for processing the axial flow fan has a main gear disposed at the middle of the top of the No. 1 card seat, the main gear is fixedly connected to the top of the rolling wheel, a No. 1 gear is disposed on both sides of the main gear, two No. 1 gears are meshed with the main gear, a No. 2 gear is disposed on the side of the two No. 1 gears, and the No. 2 gear is connected to the rolling wheel. When the power motor connected to the top of the main gear is started, the main gear drives the No. 1 gear and the No. 2 gear to rotate, and the two rolling wheels and the attachment sleeve located on the inner side of the No. 1 card seat rotate in the same direction. Under the joint action of the remaining rolling wheels and the attachment sleeve inside the No. 1 card seat and the No. 2 card seat, the axial flow fan is rotated, and the positioning side is changed, which is convenient for the operator to perform surface treatment and processing on it, thereby improving the work efficiency of the operator.

[0017] 2. The positioning device for axial flow fan processing starts the No. 2 pneumatic cylinder, which drives the drive motor and the disc to move upward as a whole. At this time, the disc is located in the center of the axial flow fan. Then the drive motor is started, and the output shaft of the drive motor drives the triangular cam to rotate. The side of the triangular cam will squeeze and push the long rod, so that the gasket connected to the long rod is in contact with the inside of the axial flow fan, thereby supporting the inside of the axial flow fan, so that the outer surface of the axial flow fan will not be deformed due to excessive force during surface processing or hole opening.

[0018] 3. The positioning device for axial flow fan processing starts the double-axis motor, which drives the double-axis motor to rotate the second bevel gear, and then drives the two screws to move, so that the first and second holders move upward, and the axial flow fan is in a horizontal position and is lifted a certain distance, then the driving motor is started, the triangular cam rotates, and the long rod drives the gasket to hide inside the disc, and the No. 2 pneumatic cylinder is started to make the disc return to the initial position, forming a bearing platform with the two supporting long blocks, and then the output motor is started to drive the first and second holders to rotate, so that the axial flow fan is in a vertical state, and the double-axis motor is started again, the No. 1 bevel gear drives the No. 2 bevel gear to rotate, and the two screws rotate to drive the mounting plate on the sliding plate and the No. 1 and No. 2 holders on the mounting plate to fall until the axial flow fan contacts the top of the disc. The disc acts as a load-bearing device to stabilize the axial flow fan. At this time, the interior of the axial flow fan is exposed to the operator's field of vision, which is convenient for welding and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic cross-sectional structural diagram of the top of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the side of the present invention; Figure 5 For the present invention Figure 3 A schematic diagram of the local enlarged structure at point A in the middle; Figure 6 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] In the figure: 1. protective cover; 2. sliding plate; 3. mounting plate; 4. output motor; 5. No. 1 card seat; 6. rolling wheel; 7. attachment sleeve; 8. main gear; 9. No. 1 gear; 10. power motor; 11. No. 1 pneumatic cylinder; 12. No. 2 card seat; 13. No. 2 pneumatic cylinder; 14. driving motor; 15. disc; 16. round rod; 17. triangular cam; 18. hinge seat; 19. long rod; 20. spring; 21. gasket; 22. supporting long block; 23. double-axis motor; 24. No. 1 bevel gear; 25. No. 2 bevel gear; 26. fixed long plate; 27. support frame; 28. screw rod; 29. ​​base; 30. clamping block; 31. connecting plate; 32. No. 2 gear. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0026] See also Figure 1 to Figure 6 The present invention proposes a positioning device for axial flow fan processing, including 29. During use, the basic support structure of the entire device is first constructed. Specifically, the tops of the four bases 29 are respectively fixed with support frames 27. This fixing method ensures the stable position of the support frame 27 in the structure and provides a solid foundation for subsequent processing operations. The base 29 and the support frame 27 are connected by a clamping block 30, and this connection method has a certain ingenuity. The setting of the clamping block 30 plays a role in dispersing force. When the top of the support frame 27 is subjected to external force, the clamping block 30 can evenly disperse these forces to the base 29. This force dispersion not only reduces the pressure borne by a single unit, but also enhances the stability between the base 29 and the support frame 27, making the entire support structure more solid and reliable, and able to withstand greater external force impacts, ensuring that the support structure will not be deformed or displaced during the subsequent axial flow fan processing and positioning process, thereby ensuring the smoothness and accuracy of the operation.

[0027] A connecting plate 31 is installed between the four support frames 27 by means of a fixed sleeve. The setting of the connecting plate 31 plays a key connecting role, which firmly connects the four support frames 27 together to form a whole. This connection method not only improves the coordination between the support frames 27, but also further enhances the stability of the entire support frame 27. When the support frame 27 is subjected to external forces, the connecting plate 31 can effectively transfer and disperse these forces to other support frames 27, so that the entire support frame 27 can jointly withstand the external forces and avoid structural deformation or damage caused by excessive local forces. At the same time, the setting of the connecting plate 31 also provides a more stable operating platform for subsequent processing and positioning, so that the operator can operate more confidently when performing processing and positioning of the axial flow fan, without having to worry about the stability of the support structure, thereby improving processing efficiency and positioning accuracy.

[0028] Sliding plates 2 are sleeved on both sides of the support frame 27. The two sliding plates 2 are located above the connecting plate 31. Their design greatly improves the flexibility of the entire device. The setting of the sliding plates 2 not only facilitates the subsequent processing positioning, but also lays the foundation for the stability and adjustability of the entire device. The two sliding plates 2 are fixedly connected with mounting plates 3. The setting of the mounting plates 3 provides a position for the subsequent installation of the driving source.

[0029] On one of the mounting plates 3, an output motor 4 is fixedly mounted, which is one of the power sources of the entire device. On the other sliding plate 2, a No. 1 pneumatic cylinder 11 is fixedly mounted, which is another key component of the device and will provide powerful power for the positioning and clamping of the axial flow fan. The other end of the No. 1 pneumatic cylinder 11 is fixedly connected to a No. 2 clamping seat 12, which corresponds to the No. 1 clamping seat 5, and they jointly undertake the positioning and clamping tasks of the axial flow fan.

[0030] Two supporting long blocks 22 are installed on the inner side of the first and second card holders 5 and 12. The two supporting long blocks 22 are symmetrical about the center line of the connecting plate 31. Their design allows the axial flow fan to be processed to be placed on them stably, providing good support for subsequent processing and positioning. The operator places the axial flow fan to be processed step by step on the two supporting long blocks 22. At this time, the axial flow fan has been preliminarily positioned on the device, ready for the subsequent clamping and processing.

[0031] In order to position and clamp the axial flow fan that needs to be processed step by step, the operator evenly and movably installs the rolling wheel 6 inside the No. 1 and No. 2 card seats 12. The outer surface of the rolling wheel 6 is sleeved with an attachment sleeve 7. The attachment sleeve 7 is made of rubber material. This material has good elasticity and adhesion, which can effectively avoid the rolling wheel 6 from directly contacting the outer shell of the axial flow fan, and avoid the damage to the outer shell of the axial flow fan caused by improper clamping. When the attachment sleeve 7 contacts the axial flow fan that needs to be processed, due to the rough outer surface of the attachment sleeve 7, it can be firmly connected to the axial flow fan without slipping. In this way, the axial flow fan can remain stable during the processing, and no displacement or shaking will occur, thereby avoiding unnecessary damage to the unprocessed outer shell of the axial flow fan and reducing economic losses.

[0032] At this time, the No. 1 holder 5 is set to be fixed, and the operator only needs to start the No. 1 pneumatic cylinder 11, and the No. 1 pneumatic cylinder 11 will exert its powerful power to drive the No. 2 holder 12 to move in the direction of the No. 1 holder 5. As the No. 2 holder 12 moves, the axial flow fan is gradually clamped between the No. 1 holder 5 and the No. 2 holder 12 until the appropriate clamping force is reached, and the axial flow fan to be processed is firmly positioned and fixed. In this way, the axial flow fan is completely in the processing state, and the operator can start subsequent processing operations, such as grinding, drilling, etc., without worrying about the axial flow fan moving or shaking, ensuring the accuracy and quality of the processing.

[0033] Then you can grind the surface of the axial flow fan shell and open some holes. In the process of grinding and opening holes, because the axial flow fan to be processed is only an appearance, there is no hub and fan blades installed inside. In the subsequent grinding and opening process, the operator has no support parts inside, which leads to a small force area during the drilling and grinding of a certain place, resulting in a large impact, causing the shell of the axial flow fan to deform. In order to avoid this phenomenon, the operator connects the connecting plate 3 1 is fixedly installed with a No. 2 pneumatic cylinder 13 in the middle, and the No. 2 pneumatic cylinder 13 is located between the two supporting long blocks 22. A driving motor 14 is installed at the other end of the No. 2 pneumatic cylinder 13. Two round rods 16 are movably sleeved inside the front and rear sides of the No. 2 pneumatic cylinder 13. A disc 15 is installed at the top of the two round rods 16. The setting of the two round rods 16 supports the disc 15 and also limits the subsequent upward movement of the disc 15. Then a triangular cam 17 is installed in the center of the disc 15. The output shaft of the driving motor 14 penetrates the disc 15 is fixedly connected to the bottom end of the triangular cam 17, and an articulated seat 18 is movably connected around the triangular cam 17. The bottom end of the articulated seat 18 fits with the bottom end of the inside of the disc 15, and the top end of the articulated seat 18 fits with the top end of the inside of the disc 15. A long rod 19 is hinged inside each articulated seat 18, and the articulation of the articulated seat 18 and the long rod 19 is arranged. The other end of the long rod 19 passes through the disc 15 and is connected with a gasket 21. At this time, the operator starts the No. 2 pneumatic cylinder 13, and the No. 2 pneumatic cylinder 13 will drive the drive motor 14 and the disc 15 to move upward as a whole. At this time, the disc 15 will be located in the center of the interior of the axial flow fan, and then the drive motor 14 is started. The output shaft of the drive motor 14 will drive the triangular cam 17 to rotate. At this time, as the triangular cam 17 rotates, the side of the triangular cam 17 will continuously squeeze and push the long rod 19, so that the gasket 21 connected to the long rod 19 is in contact with the interior of the axial flow fan, thereby supporting the interior of the axial flow fan. At this time, grinding the surface of the axial flow fan and opening holes will not cause deformation of the surface due to excessive force, thereby affecting product quality.

[0034] When the operator is grinding and opening the holes on the positioning clamping surface, the operator will generally reposition the axial flow fan. This method is cumbersome and time-consuming. At this time, the operator sets a main gear 8 in the middle of the top of the No. 1 clamp 5. The main gear 8 is fixedly connected to the top of the rolling wheel 6. A No. 1 gear 9 is set on both sides of the main gear 8. The two No. 1 gears 9 are meshed with the main gear 8. At the same time, a No. 2 gear 32 is set on the side of the two No. 1 gears 9. The two No. 2 gears 32 are connected to the rolling wheel 6. At the same time, the size of the main gear 8 is larger than that of the No. 1 gear 9 and the No. 2 gear 32, thereby realizing a large wheel with a small wheel, increasing Speed ​​transmission, and a protective cover 1 is provided on the top of the No. 1 card seat 5. The protective cover 1 protects its internal structure and also supports the power motor 10. At this time, the power motor 10 connected to the top of the main gear 8 is started. At this time, the main gear 8 will drive the No. 1 gear 9 and the No. 2 gear 32 to rotate. At this time, the two rolling wheels 6 and the attachment sleeve 7 located on the inner side of the No. 1 card seat 5 will rotate in the same direction. The axial flow fan between the No. 1 card seat 5 and the No. 2 card seat 12 will rotate with the cooperation of the remaining rolling wheels 6 and the attachment sleeve 7, so that the position of the positioning side is changed, so that the surface can be treated and processed.

[0035] When the inside of the axial flow fan needs to be processed and welded, in order to improve the work efficiency and convenience of the operator, the device movably installs screw rods 28 in the middle of the inside of both sides of the connecting plate 31. The design of these two screw rods 28 plays a key transmission role. They penetrate the two sliding plates 2 and the top of the support frame 27, and extend to the outside of the top of the support frame 27, so that the screw rods 28 can cooperate with other parts of the device to achieve complex movement and adjustment functions.

[0036] A second bevel gear 25 is installed at the top of the two screw rods 28. The design of the bevel gear makes the transmission more compact and efficient, and it can change the direction of the rotational motion, thereby achieving a more flexible transmission method. The second bevel gear 25 meshes with the first bevel gear 24. This meshing relationship ensures the stability and reliability of the transmission, allowing the device to accurately control the movement of the sliding plate 2 and the support frame 27 to meet different processing requirements.

[0037] A dual-axis motor 23 is installed in the middle of the top of the support frame 27. The dual-axis motor 23 is one of the power sources of the entire device. The output shafts on both sides thereof are sleeved with a first bevel gear 24. The meshing relationship between the first bevel gear 24 and the second bevel gear 25 enables the dual-axis motor 23 to drive the screw 28 to rotate, thereby driving the sliding plate 2 and the support frame 27 to move accordingly. This design allows the operator to achieve precise positioning and adjustment of the axial flow fan by controlling the dual-axis motor 23.

[0038] In order to ensure that the first bevel gear 24 runs more stably, a fixed long plate 26 is provided on the outer surface of the first bevel gear 24. The fixed long plate 26 is installed on the top of the support frame 27, and it plays an important supporting role for the first bevel gear 24. This support can not only reduce the vibration and wear of the first bevel gear 24 during operation, but also improve the stability and reliability of its transmission.

[0039] At this time, the double-axis motor 23 is started, and the double-axis motor 23 will drive the second bevel gear 25 to rotate, and then drive the two screw rods 28 to move, so that the No. 1 card seat 5 and the No. 2 card seat 12 can be driven to move upward. At this time, the axial flow fan located between the No. 1 card seat 5 and the No. 2 card seat 12 is in a horizontal position and is lifted a certain distance. Then the operator starts the drive motor 14 again, so that the triangular cam 17 rotates again. At the same time, a spring 20 is sleeved on the outer surface of the long rod 19, one end of the spring 20 is connected to the inside of the disc 15, and the other end of the spring 20 is fixedly connected to the outer surface of the long rod 19. At this time, with the rotation of the triangular cam 17, the elastic force recovery action of the spring 20 will make the long rod 19 drive the gasket 21 to hide inside the disc 15. Then start the No. 2 pneumatic cylinder 13 again, so that the disc 15 returns to its initial position. At this time, a bearing platform will be formed between the disc 15 and the two supporting long blocks 22 for the subsequent axial flow fan to be placed vertically.

[0040] Then, in order to place the axial flow fan in a vertical position between the horizontal, the operator starts the output motor 4, thereby driving the No. 1 card seat 5 and the No. 2 card seat 12 to rotate, so that the axial flow fan is in a vertical state, and then starts the dual-axis motor 23 again to drive the output shaft to rotate, thereby driving the No. 1 bevel gear 24, thereby driving the No. 2 bevel gear 25 to rotate, so that the two screw rods 28 can rotate to drive the mounting plate 3 on the sliding plate 2 and the No. 1 card seat 5 and the No. 2 card seat 12 on the mounting plate 3 to fall, until the axial flow fan to be processed contacts with the top of the disc 15, at this time, because the disc 15 acts as a load-bearing role, the state of the axial flow fan located between the No. 1 card seat 5 and the No. 2 card seat 12 is stable, and the interior of the axial flow fan is exposed to the field of vision of the operator, so that the hub fan blades can be welded and installed inside the axial flow fan.

[0041] In summary, the entire device realizes the functions of stable support, positioning clamping, rotation adjustment and internal processing of the axial flow fan through the coordinated work of multiple components, improves processing efficiency and product quality, and reduces the workload and time consumption of operators.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for machining an axial flow fan, comprising a support frame (27), two sliding plates (2) sleeved on both sides of the support frame (27), and a mounting plate (3) on the two sliding plates (2), characterized in that: An output motor (4) is mounted on the mounting plate (3), a first pneumatic cylinder (11) is mounted on another mounting plate (3), an output shaft of the output motor (4) is connected to a first card seat (5), rolling wheels (6) are evenly arranged inside the first card seat (5), an attachment sleeve (7) is sleeved on the outer surface of the rolling wheel (6), a driving mechanism is provided at the top end of the rolling wheel (6), the other end of the first pneumatic cylinder (11) is connected to a second card seat (12), and the interior of the second card seat (12) has the same structure as the interior of the first card seat (5).

2. A positioning device for machining an axial flow fan according to claim 1, characterized in that: The driving mechanism comprises a main gear (8), the bottom end of the main gear (8) is fixedly connected to the top end of the rolling wheel (6), a protective cover (1) is installed on the top end of the first card seat (5), and the top end of the main gear (8) penetrates the protective cover (1) and is connected to a power motor (10).

3. A positioning device for machining an axial flow fan according to claim 2, characterized in that: A number one gear (9) is arranged on both sides of the main gear (8), and the two number one gears (9) are meshed with the main gear (8). A number two gear (32) is arranged on the sides of the two number one gears (9), and the two number two gears (32) are connected to the rolling wheel (6).

4. The positioning device for machining an axial flow fan according to claim 1, characterized in that: The bottom end of the support frame (27) is connected to a base (29), a clamping block (30) is installed between the base (29) and the support frame (27), a connecting plate (31) located below the sliding plate (2) is fixedly sleeved on the outer surface of the support frame (27), and long supporting blocks (22) are installed on the left and right sides of the connecting plate (31).

5. A positioning device for machining an axial flow fan according to claim 4, characterized in that: A No. 2 pneumatic cylinder (13) is fixedly mounted in the middle of the connecting plate (31) and is located between the two supporting long blocks (22). A driving motor (14) is mounted on the other end of the No. 2 pneumatic cylinder (13). Two round rods (16) are movably sleeved inside the front and rear sides of the No. 2 pneumatic cylinder (13), and discs (15) are mounted on the top ends of the two round rods (16).

6. A positioning device for machining an axial flow fan according to claim 5, characterized in that: A triangular cam (17) is installed at the center of the disc (15), and the output shaft of the drive motor (14) passes through the disc (15) and is fixedly connected to the bottom end of the triangular cam (17). A hinge seat (18) is movably connected to the periphery of the triangular cam (17).

7. The positioning device for machining an axial flow fan according to claim 6, characterized in that: The triangular cam (17) is movably connected to three hinged seats (18) at its periphery, and a long rod (19) is hingedly connected inside each of the three hinged seats (18). A spring (20) is sleeved on the outer surface of the long rod (19), one end of the spring (20) is connected to the inside of the disc (15), and the other end of the spring (20) is fixedly connected to the outer surface of the long rod (19), and one end of the long rod (19) is connected to a gasket (21).

8. The positioning device for machining an axial flow fan according to claim 4, characterized in that: Screw rods (28) are movably mounted in the middle of the two sides of the connecting plate (31). The two screw rods (28) penetrate the two sliding plates (2) and the top of the support frame (27) and extend to the outside of the top of the support frame (27). The top of the two screw rods (28) is mounted with a second bevel gear (25).

9. The positioning device for machining an axial flow fan according to claim 1, characterized in that: A double-shaft motor (23) is installed in the middle of the top of the support frame (27), and the output shafts on both sides of the double-shaft motor (23) are sleeved with a first bevel gear (24), and the first bevel gear (24) is meshed with a second bevel gear (25).

10. The positioning device for machining an axial flow fan according to claim 9, characterized in that: Two fixed long plates (26) are arranged on the outer surface of the first bevel gear (24), and the two fixed long plates (26) are mounted on the top end of the support frame (27).

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