A machining device for large-diameter impeller grinding with dust removal function

Abstract

The application provides a machining device with dust removal function for large-diameter impeller grinding, in which dust removal mechanisms are arranged on both sides of the grinding station, and a plurality of air guide shells are distributed along the radial plane of the impeller mounting position, so that the impeller can be cleaned by airflow when entering and leaving the grinding station. When the driving assembly drives the air guide shell to deflect when the rotary table drives the impeller to rotate, the air outlet tends to be in the tangential direction of the windward surface of the blade, so that the airflow moving towards the blade surface improves the airflow cleaning ability. At the same time, the air guide shell can adjust the blowing posture according to the blade movement state, avoid the decline of cleaning effect caused by fixed blowing direction, and improve the dust removal stability of the blade and the welding groove area.

Description

Technical Field

[0001] This invention relates to the field of impeller grinding, specifically to a processing device with dust removal function for grinding large-diameter impellers. Background Technology

[0002] The three-dimensional impeller is a widely used impeller structure in fluid machinery. It typically consists of a hub and multiple spatially twisted blades spaced circumferentially along the hub. Because the blades of a three-dimensional impeller exhibit both circumferential bending and axial torsion, their surfaces possess a complex three-dimensional curved structure. For large-diameter three-dimensional impellers used in large equipment, their overall size is large, the number of blades is numerous, and the space between the blades is limited. Therefore, during manufacturing, the weld bevel formed at the junction of the blades and the hub usually needs to be ground to remove weld slag, spatter, and uneven surfaces generated during welding, thereby improving the impeller's surface quality.

[0003] With the development of automated processing technology, the grinding of weld bevels on large-sized impellers is now typically done using mechanized methods. For example, an industrial robotic arm is used as the moving carrier, with a grinding mechanism installed at its moving end. The robotic arm drives the grinding mechanism along a preset trajectory to achieve continuous grinding of different areas of the impeller. Because large-diameter ternary impellers are quite large, a single grinding operation cannot cover the entire processing area. Therefore, in actual processing, the impeller is usually mounted on a rotary table. The rotary table drives the impeller to rotate, causing the blades at different positions to rotate sequentially to the grinding area, thus cooperating with the robotic arm to complete the processing of each blade and the weld bevel position.

[0004] However, during the aforementioned grinding process, the grinding tools such as grinding wheels and belts are in continuous contact with the impeller surface, generating a large amount of grinding debris, welding slag, and dust. Due to the complex curved surface structure of the ternary impeller blades, some of the grinding debris and dust easily adhere to the blade surface or remain near the weld bevel. At the same time, as the impeller continues to rotate, some dust that is not removed in time may re-enter the grinding area with the blade movement, which not only affects the processing stability during the grinding process but may also cause impurities to re-adhere to the processed area, reducing the grinding quality.

[0005] Existing technologies typically employ fixed air-blowing structures to assist in cleaning the grinding area, using a continuously ejected airflow to remove some of the dust and grinding debris generated during processing. However, because the impeller rotates during processing, the spatial orientation of different blades changes constantly as they pass the airflow position. It is difficult for a fixed-direction airflow to maintain an effective angle of contact with the blade surface, resulting in weaker blowing effects in some areas, especially when the blade's windward face changes significantly, easily leading to insufficient cleaning. Therefore, how to adaptively adjust the dust-collecting airflow according to the blade motion during the rotational processing of large-diameter three-dimensional impellers, thereby improving the cleaning effect on blades at different positions and the welding bevel area, has become a problem that needs to be solved. Summary of the Invention

[0006] In order to solve the problem that the fixed-direction jetting airflow is difficult to adapt to the posture changes of the rotating blades during the grinding of the weld bevel of the existing large-diameter ternary impeller, resulting in poor removal of grinding debris, welding slag and dust, the present invention provides a processing device with dust removal function for grinding large-diameter impellers.

[0007] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides a processing device with dust removal function for grinding large diameter impellers, including a rotary table that can drive the impeller to rotate, a grinding unit is provided on one side of the rotary table, a grinding station is formed in the area of ​​the rotary table near the grinding unit, and dust removal mechanisms are provided on both sides of the grinding station. The dust removal mechanism includes an installation assembly, on which multiple evenly distributed air guide shells are provided. The multiple air guide shells are distributed in a plane radially along the impeller installation position, and the air guide shells can rotate relative to the installation assembly. The dust removal mechanism also includes a drive component. When the rotary table drives the impeller to rotate, the drive component is triggered and drives the air guide shell to rotate, causing the air outlet of the air guide shell to deflect to the side opposite to the direction of blade rotation, so that the air outlet faces the tangential direction of the windward surface of the blade.

[0008] In this technical solution, the drive assembly includes a drive unit mounted on the mounting assembly and a transmission unit that is connected to the drive unit. The drive unit is provided with trigger units on both sides along the rotation trajectory of the rotary table. The trigger units extend radially into the impeller along the impeller mounting position and can engage with the blades on the impeller.

[0009] In this technical solution, the triggering part can rotate relative to the mounting component, and a transmission structure is provided between the triggering part and the driving part; when the rotary table drives the impeller to rotate, the blade pushes the corresponding triggering part to rotate, the triggering part drives the driving part to run through the transmission structure, and drives the air guide shell to deflect to the opposite side of the blade rotation direction through the transmission part. After the triggering part disengages from the corresponding blade, the triggering part is reset under the action of the reset component, and drives the air guide shell to reset to the initial position of the air outlet tending towards the radial direction of the rotary table through the driving part and the transmission part.

[0010] In this technical solution, the drive assembly includes a support rod fixed on the mounting assembly, and a drive part is provided at the end of the support rod. The drive part includes a drive shaft rotatably disposed at the end of the support rod. The drive shaft can be reset after rotation. At least one end of the drive shaft is fixedly provided with a drive gear. The drive gear is connected to the air guide shell through a transmission part, and the drive shaft is connected to the trigger part through a transmission part. When the triggering part moves under the action of the blades, the triggering part drives the drive shaft to rotate, and drives the air guide shell to deflect through the drive gear and transmission part.

[0011] In this technical solution, the triggering part includes a fixed plate fixedly connected to the drive shaft. Both sides of the fixed plate along the rotation trajectory of the rotary table are fixedly provided with a synchronous rod with an arc-shaped structure. The end of the synchronous rod away from the fixed plate is rotatably connected to the triggering plate. The triggering plate can be reset after rotation. The triggering plate is arranged radially along the impeller installation position, and a check rod is fixedly provided on the triggering plate. The check rod can overlap with the corresponding synchronous rod. The trigger plate is used to contact the blades on the impeller and drives the fixed plate and drive shaft to rotate via the synchronizing rod.

[0012] In this technical solution, the check rod and the synchronizing rod form a one-way overlapping fit. When the trigger plate moves along the impeller rotation direction under the action of the blade, the check rod abuts against the corresponding synchronizing rod, so that the trigger plate drives the synchronizing rod to move synchronously. When the trigger plate moves in the opposite direction, the check rod and the synchronizing rod release from contact, so that the trigger plate can rotate relative to the synchronizing rod.

[0013] In this technical solution, the transmission unit includes a self-rotating transmission gear, which meshes with a drive gear on the drive unit for transmission. The transmission gear is fixedly connected to the air guide shell on one side by a rod.

[0014] In this technical solution, a bearing ring is also included. The bearing ring is sleeved around the periphery of the rotary table and is coaxially arranged with the installation position of the impeller. The bearing ring is installed on the outer shell of the rotary table. The dust removal mechanism also includes an L-shaped support frame, which is fixed on the support ring, and the mounting components are set on the support frame; The mounting assembly includes a mounting plate that is tilted toward the impeller mounting position, and the drive assembly and air guide shell are both fixed to the mounting plate.

[0015] In this technical solution, the mounting plate can be tilted relative to the support frame at an adjustable angle. The two sides of the mounting plate are slidably connected to the vertical and horizontal surfaces of the support frame through sliding parts, so that the mounting plate can be positioned on the support frame and its tilt attitude relative to the impeller mounting position can be changed.

[0016] In this technical solution, a drive assembly is provided on the mounting assembly, and the drive assembly is connected to at least two of the multiple air guide shells. Adjacent air guide shells are fixedly connected by rods so that the multiple air guide shells rotate synchronously. Alternatively, the mounting assembly may have multiple drive components, each of which is connected to at least one and at most two air guide shells.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0018] The positive and progressive effects of this invention are as follows: In this application, by setting dust removal mechanisms on both sides of the grinding station and distributing multiple air guide shells along the radial plane of the impeller installation position, the blades can be cleaned by blowing air as the impeller enters and leaves the grinding station. Simultaneously, the drive assembly drives the air guide shells to rotate synchronously when the impeller rotates on the rotary table, causing the air outlets of the air guide shells to face the tangential direction of the blade's windward side. This allows the ejected airflow to act on the blade surface in the direction of blade movement. Because a large relative velocity is formed between the airflow and the blade surface, it can more effectively blow away grinding debris, welding slag, and dust adhering to the blade surface and near the welding bevel. This reduces the likelihood of dust re-adhering to the blade surface or entering the grinding area as the blade rotates, improving the cleaning effect before and after grinding, and helping to reduce the impact of dust on subsequent grinding quality and the working environment.

[0019] In addition, the air guide shell does not maintain a fixed blowing direction, but adjusts the blowing posture synchronously during the impeller rotation, so that the blowing direction can compensate for the change of the blade spatial position. This avoids the problem of the blowing efficiency decreasing due to the continuous change of the angle between the airflow and the blade surface under a fixed blowing direction. This ensures that each blade can maintain a good windward blowing state when passing through the dust removal mechanism, thereby improving the blowing consistency and dust removal stability of blades at different positions and welding bevel areas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A top-view structural diagram; Figure 3 This is a schematic diagram of the overall structure of the dust removal mechanism of the present invention; Figure 4This is a schematic diagram of the dust removal mechanism with a dust collection shell according to the present invention; Figure 5 This is a schematic diagram of the connection structure of the support frame, mounting assembly, and drive assembly of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure viewed from below; Figure 7 This is a schematic diagram of the connection structure between the drive component and the air guide shell of the present invention; Figure 8 For the present invention Figure 7 A structural diagram from another perspective; Figure 9 This is a schematic diagram of the structure when multiple drive components are set on the mounting component of the present invention; Figure 10 For the present invention Figure 9 A schematic diagram of the structure from another perspective.

[0021] Explanation of reference numerals in the attached figures 101. Rotary table; 102. Dust removal mechanism; 103. Impeller; 104. Robotic arm; 105. Grinding mechanism; 106. Tool magazine; 107. Cleaning unit; 1. Bearing ring; 11. Dust collection shell; 2. Support frame; 3. Mounting components; 31. Mounting plate; 32. Slider; 33. Guide rail; 34. Threaded sleeve; 35. Threaded rod; 4. Drive assembly; 41. Bearing rod; 42. Drive unit; 421. Connecting frame; 422. Drive gear; 423. Drive shaft; 43. Trigger unit; 431. Fixing plate; 432. Synchronizing rod; 433. Trigger plate; 434. Check rod; 44. Transmission unit; 441. Transmission gear; 442. Connecting shaft; 443. Rotating ring; 444. Connecting sleeve; 5. Air guide shell; 51. Flexible hose; 52. Rigid pipe. Detailed Implementation

[0022] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0023] like Figure 1 and Figure 2 As shown, a processing device with dust removal function for grinding large-diameter impellers includes a rotary table 101 that can drive the impeller 103 to rotate. A grinding unit is provided on one side of the rotary table 101, and a grinding station is formed in the area of ​​the rotary table 101 near the grinding unit. Dust removal mechanisms 102 are provided on both sides of the grinding station. The dust removal mechanism 102 includes a mounting assembly 3, on which a plurality of evenly distributed air guide shells 5 are provided. The plurality of air guide shells 5 are distributed in a plane radially along the installation position of the impeller 103, and the air guide shells 5 can rotate relative to the mounting assembly 3. The dust removal mechanism 102 also includes a drive assembly 4. When the rotary table 101 drives the impeller 103 to rotate, the drive assembly 4 is triggered and drives the air guide shell 5 to rotate, so that the air outlet of the air guide shell 5 deflects to the side opposite to the direction of blade rotation, so that the air outlet faces the tangential direction of the windward surface of the blade.

[0024] Example 1 In this embodiment, as Figure 7 and Figure 8 As shown, the drive assembly 4 includes a drive part 42 mounted on the mounting assembly 3 and a transmission part 44 that is connected to the drive part 42. The drive part 42 is provided with trigger parts 43 on both sides along the rotation trajectory direction of the rotary table 101. The trigger parts 43 extend radially into the impeller 103 along the mounting position of the impeller 103 and can engage with the blades on the impeller 103.

[0025] The trigger part 43 can rotate relative to the mounting component 3, and a transmission structure is provided between the trigger part 43 and the drive part 42. When the rotary table 101 drives the impeller 103 to rotate, the blade pushes the corresponding trigger part 43 to rotate. The trigger part 43 drives the drive part 42 to run through the transmission structure, and drives the air guide shell 5 to deflect to the opposite side of the blade rotation direction through the transmission part 44. When the trigger part 43 disengages from the corresponding blade, the trigger part 43 is reset under the action of the reset member, and drives the air guide shell 5 to reset to the initial position of the air outlet tending to the radial direction of the rotary table 101 through the drive part 42 and the transmission part 44.

[0026] Specifically, during operation, the impeller 103 to be processed is installed on the rotary table 101, and the rotary table 101 drives the impeller 103 to rotate. When the blades on the impeller 103 rotate with the rotary table 101 and enter the corresponding area of ​​the dust removal mechanism 102, the blades first contact the trigger part 43 and push the trigger part 43 to rotate around the installation position; the rotation of the trigger part 43 drives the drive part 42 to run through the transmission structure, and further drives the air guide shell 5 to deflect through the transmission part 44, so that the air outlet of the air guide shell 5 is adjusted to the side opposite to the direction of blade rotation, so that the ejected airflow is directed towards the tangential direction of the blade's windward surface, and blows away dust, abrasives, etc. on the blade surface and near the welding bevel.

[0027] As the impeller 103 continues to rotate, after the blade disengages from the triggering part 43, the triggering part 43 returns to its initial position under the action of the reset member. It then drives the guide shell 5 to reset synchronously via the drive part 42 and the transmission part 44, restoring the guide shell 5 to a state where the air outlet tends to be radially aligned with the rotary table 101, ready to be triggered again when the next blade passes by. Through this process, the guide shell 5 can intermittently adjust its angle as the blades periodically pass by, ensuring that the blowing direction always matches the blade movement state and improving the dust removal effect on different blade areas of the three-dimensional impeller 103.

[0028] Preferably, by providing a drive assembly 4 including a drive unit 42, a transmission unit 44, and a trigger unit 43, and by having the trigger unit 43 cooperate with the blades on the impeller 103, the angle adjustment of the air guide shell 5 can be actively triggered when the blades pass by. During the rotation of the impeller 103 with the rotary table 101, the blades push the trigger unit 43 to move. The trigger unit 43, via the drive unit 42 and the transmission unit 44, drives the air guide shell 5 to deflect to the opposite side of the blade rotation direction. This allows the air outlet of the air guide shell 5 to adjust accordingly with the movement of the blades, thereby making the ejected airflow more tangential to the windward side of the blades, improving the scouring effect of the airflow on the blade surface and the weld bevel area.

[0029] Meanwhile, by setting a reset component, the trigger 43 can automatically reset after disengaging from the corresponding blade, and drive the air guide shell 5 back to its initial position tending towards the radial direction of the rotary table 101. This allows the air guide shell 5 to complete its attitude recovery before the next blade arrives, so that each blade can independently trigger the air guide shell 5 to adjust its angle when passing through the dust removal area. This avoids the problem of the air guide shell 5 maintaining a fixed deflection state during continuous blowing, causing subsequent blades to deviate from their blowing direction, and improves the consistency and adaptability of the blowing direction when different blades pass through the dust removal area.

[0030] Example 2 like Figure 7 and Figure 8 As shown, the drive assembly 4 includes a support rod 41 fixed on the mounting assembly 3. A drive part 42 is provided at the end of the support rod 41. The drive part 42 includes a drive shaft 423 rotatably disposed at the end of the support rod 41. The drive shaft 423 can be reset after rotation. At least one end of the drive shaft 423 is fixedly provided with a drive gear 422. The drive gear 422 is connected to the air guide shell 5 through the transmission part 44. The drive shaft 423 is connected to the trigger part 43. When the trigger part 43 moves under the action of the blade, the trigger part 43 drives the drive shaft 423 to rotate, and drives the air guide shell 5 to deflect through the drive gear 422 and the transmission part 44.

[0031] The triggering unit 43 includes a fixed plate 431 fixedly connected to the drive shaft 423. Both sides of the fixed plate 431 along the rotation trajectory of the rotary table 101 are fixedly provided with a synchronous rod 432 with an arc-shaped structure. The end of the synchronous rod 432 away from the fixed plate 431 is rotatably connected to the triggering plate 433. The triggering plate 433 can be reset after rotation. The triggering plate 433 is arranged radially along the installation position of the impeller 103, and a check rod 434 is fixedly provided on the triggering plate 433. The check rod 434 can overlap with the corresponding synchronous rod 432. The trigger plate 433 is used to contact the blades on the impeller 103 and drive the fixed plate 431 and drive shaft 423 to rotate via the synchronizing rod 432.

[0032] The check rod 434 and the synchronizing rod 432 form a one-way overlapping fit. When the trigger plate 433 moves along the rotation direction of the impeller 103 under the action of the blade, the check rod 434 abuts against the corresponding synchronizing rod 432, so that the trigger plate 433 drives the synchronizing rod 432 to move synchronously. When the trigger plate 433 moves in the opposite direction, the check rod 434 and the synchronizing rod 432 release from contact, so that the trigger plate 433 can rotate relative to the synchronizing rod 432.

[0033] Specifically, a first coil spring is provided between the drive shaft 423 and the mounting position, and a second coil spring is provided at the rotational connection between the trigger plate 433 and the synchronizing rod 432, to provide a reset force for the drive shaft 423 and the trigger plate 433 respectively. The elastic coefficient of the first coil spring is greater than that of the second coil spring, and the first and second coil springs constitute a reset element.

[0034] When the blade pushes the trigger plate 433 to move, the elastic coefficient of the first coil spring is greater than that of the second coil spring, making it easier for relative rotation to occur at the connection between the trigger plate 433 and the synchronizing rod 432, while the drive shaft 423 remains in its current position under the action of the first coil spring. Therefore, when the blade passes the previous trigger plate 433 and continues to move until it contacts the next trigger plate 433, the next trigger plate 433 can rotate relative to the synchronizing rod 432 first, so that the trigger part 43 adapts to the continuous passing of the blade, without immediately causing the synchronizing rod 432, the fixed plate 431, and the drive shaft 423 to rotate.

[0035] Specifically, the drive unit 42 also includes a connecting frame 421, a drive shaft 423 is mounted on the connecting frame 421 and can rotate on the connecting frame 421, a first coil spring is sleeved on the surface of the drive shaft 423, the two ends of the first coil spring are respectively connected to the drive shaft 423 and the connecting frame 421, and the connecting frame 421 is fixed to the end of the support rod 41.

[0036] When the corresponding blade continues to push the trigger plate 433 and reaches the set overlap state, the trigger plate 433 drives the fixed plate 431 and the drive shaft 423 to rotate through the synchronizing rod 432, so that the drive shaft 423 drives the air guide shell 5 to complete the deflection adjustment; when the blade disengages from the trigger plate 433, the first coil spring and the second coil spring respectively drive the drive shaft 423 and the trigger plate 433 to return to the initial state, so that the next blade will trigger again when it passes by.

[0037] During operation, the rotary table 101 drives the impeller 103 to rotate. When the blades on the impeller 103 rotate to the area where the dust removal mechanism 102 is located, the blades first contact the corresponding trigger plate 433 and push the trigger plate 433 to move in the direction of rotation of the impeller 103. Since the check rod 434 on the trigger plate 433 and the synchronizing rod 432 form a one-way overlapping fit, during the process of the blades pushing the trigger plate 433 to move, the check rod 434 abuts against the synchronizing rod 432, so that the trigger plate 433 and the synchronizing rod 432 form a synchronous movement relationship, thereby driving the fixed plate 431 and the drive shaft 423 connected to the fixed plate 431 to rotate until the blades disengage from the corresponding trigger plate 433.

[0038] When the drive shaft 423 rotates, it drives the drive gear 422 at its end to rotate synchronously. The drive gear 422 transmits power to the air guide shell 5 through the transmission part 44, causing the air guide shell 5 to deflect around the installation position, thereby adjusting the orientation of the air outlet of the air guide shell 5, so that the ejected airflow tends to be tangential to the windward side of the blade, and blows away the dust and shavings on the blade surface and near the welding bevel in the grinding area.

[0039] As the impeller 103 continues to rotate, when the blades gradually leave the working area of ​​the trigger plate 433, the pushing force on the trigger plate 433 disappears. At this time, the trigger plate 433 rotates relative to the synchronizing rod 432 under the reset action, causing the check rod 434 to disengage from the synchronizing rod 432, preventing the trigger plate 433 from generating a reverse driving force on the synchronizing rod 432, thereby restoring the trigger part 43 to the state before the next trigger. When the next blade enters the dust removal area, the trigger plate 433 on the other side contacts the blade again and repeats the above action process, realizing the periodic deflection adjustment of the air guide shell 5 as the blades pass by.

[0040] Specifically, the transmission unit 44 includes a self-rotating transmission gear 441, which meshes with the drive gear 422 on the drive unit 42 for transmission. The transmission gear 441 is fixedly connected to the air guide shell 5 on one side by a rod.

[0041] By utilizing the reverse transmission structure formed by the meshing of the transmission gear 441 and the drive gear 422, when the drive shaft 423 rotates, the air guide shell 5 can deflect in the opposite direction to the fixed plate 431, the trigger plate 433 and the synchronizing rod 432, thereby adjusting the air outlet of the air guide shell 5 to face the opposite side of the blade movement direction, so that the ejected airflow is more inclined to act on the tangential area of ​​the blade's windward surface, improving the blowing effect on dust and shavings on the blade surface and near the welding bevel.

[0042] Specifically, a guide shell 5 and a connecting shaft 442 are fixed at the center of both sides of the transmission gear 441, respectively. A rotating ring 443 is fixedly connected to the surface of the connecting shaft 442. The rotating ring 443 can rotate inside the connecting sleeve 444. The connecting sleeve 444 is fixed on the bearing rod 41.

[0043] The transmission gear 441 can rotate due to the rotation of the self-rotating ring 443 inside the connecting sleeve 444.

[0044] Example 3 like Figure 3 , Figure 5 and Figure 6 As shown, it also includes a bearing ring 1, which is sleeved around the outer periphery of the rotary table 101 and is coaxially arranged with the installation position of the impeller 103. The bearing ring 1 is installed on the outer shell of the rotary table 101, and the bearing ring 1 is provided with an annular dust collection shell 11. The dust removal mechanism 102 also includes an L-shaped support frame 2, which is fixed on the support ring 1, and the mounting assembly 3 is mounted on the support frame 2.

[0045] Mounting assembly 3 includes a mounting plate 31 that is inclined toward the mounting position of impeller 103, and drive assembly 4 and air guide shell 5 are both fixed on mounting plate 31.

[0046] Specifically, the support rod 41 is fixed on the mounting plate 31, and the support rod 41 and the mounting plate 31 are set perpendicular to each other. The air guide shell 5 is connected to an external air pump through a rigid pipe 52, and a flexible hose 51 with one end that can be stretched and deformed is embedded in the rigid pipe 52.

[0047] Specifically, by setting a bearing ring 1 coaxial with the impeller 103, the dust removal mechanism 102 can be stably arranged around the impeller 103 in a circumferential direction; by using the L-shaped bearing frame 2 and the inclined mounting plate 31, the drive assembly 4 and the air guide shell 5 are kept in an installation posture close to the blades; at the same time, by using the rigid pipe 52 in conjunction with the flexible pipe section, the air guide shell 5 can still maintain a stable air supply during the deflection process, avoiding interference or stress on the air supply pipeline caused by the adjustment of the air guide shell 5's posture.

[0048] As a preferred technical solution in this embodiment, the mounting plate 31 can be tilted relative to the support frame 2. Specifically, the two sides of the mounting plate 31 are slidably connected to the vertical and horizontal surfaces of the support frame 2 through sliding parts, so that the mounting plate 31 can be adjusted on the support frame 2 and the tilt posture of the mounting plate 31 relative to the installation position of the impeller 103 can be changed.

[0049] Furthermore, the sliding part includes a guide rail 33 fixedly mounted on the vertical or horizontal surface of the support frame 2 and a slider 32 slidably connected to the guide rail 33. The slider 32 is rotatably connected to the corresponding end of the mounting plate 31, so that the mounting plate 31 can change its tilt angle as the slider 32 moves along the guide rail 33. At least one slider 32 is provided with a limit member to restrict the movement of the slider 32 relative to the guide rail 33 after the mounting plate 31 is adjusted to a preset tilt angle.

[0050] The limiting component includes a threaded sleeve 34 fixedly mounted on the corresponding slider 32. The axial direction of the threaded sleeve 34 is perpendicular to the vertical or horizontal plane of the support frame 2. A threaded rod 35 is threadedly connected to the threaded sleeve 34. The threaded rod 35 can extend or retract during rotation adjustment and abut against the corresponding guide rail 33 to limit the position of the slider 32 relative to the guide rail 33.

[0051] By sliding the mounting plate 31 to the vertical and horizontal surfaces of the support frame 2 on both sides, the tilt angle of the mounting plate 31 can be adjusted according to the spatial posture of the impeller 103 blades, thereby changing the installation angle of the air guide shell 5 relative to the blades, so that the blowing direction can be adapted to impellers 103 of different specifications or different blade structures, and improving the applicability of the dust removal mechanism 102.

[0052] Example 4 like Figure 5 and Figure 6 As shown, a drive assembly 4 is provided on the mounting assembly 3. The drive assembly 4 is connected to at least two of the multiple air guide shells 5. Adjacent air guide shells 5 are fixedly connected by rods so that the multiple air guide shells 5 rotate synchronously. A limiting sleeve can be fitted onto the surface of the rod between two adjacent air guide shells 5. The limiting sleeve is fixed on the mounting plate 31. like Figure 9 and Figure 10 As shown, or, the mounting component 3 is provided with multiple drive components 4, each drive component 4 being drivenly connected to at least one and at most two air guide shells 5, and a single drive component 4 and the air guide shell 5 connected thereto constitute a cleaning unit 107.

[0053] Specifically, by setting a drive assembly 4 on the mounting assembly 3 and connecting the drive assembly 4 to the air guide shells 5 located on both sides of it, and simultaneously using rods to fix the other air guide shells 5 to each other, multiple air guide shells 5 can be synchronously driven by a single drive assembly 4 to complete angle adjustment. This structure reduces the number of drive parts 42, reduces the structural complexity and installation cost of the dust removal mechanism 102, and avoids the problem of asynchronous operation when multiple drive assemblies 4 are controlled separately, thereby improving the consistency and reliability of the rotation adjustment of multiple air guide shells 5.

[0054] Furthermore, by setting multiple drive components 4 on the mounting assembly 3, and making each drive component 4 connected to one or two air guide shells 5 respectively, the air guide shells 5 in different areas can be adjusted independently or in groups according to the blade movement state at the corresponding position. This structure improves the flexibility of the angle adjustment of the air guide shells 5, enabling the dust removal mechanism 102 to better adapt to the different blade positions, spatial attitudes, and local structural differences in the large-diameter three-dimensional impeller 103, thereby improving the accuracy of airflow acting on the blade surface and the dust removal effect.

[0055] Example 5 Preferably, both the support rod 41 and the trigger plate 433 are telescopic structures and can maintain their current length after being adjusted to a preset length. By adjusting the length of the support rod 41, the arrangement distance between the drive assembly 4 and the air guide shell 5 and the impeller 103 can be changed; by adjusting the extension length of the trigger plate 433, the mating position between the trigger plate 433 and the blade can be changed, thereby enabling the dust removal mechanism 102 to adapt to impellers 103 with different diameters, different blade sizes, and different installation states, improving the versatility of the equipment.

[0056] Meanwhile, the bearing rod 41 and the trigger plate 433 can remain fixed after the length adjustment is completed, so as to avoid the structural position change caused by the force during the rotation of the impeller 103, and ensure the stable cooperation between the trigger part 43 and the blade and the reliability of the angle adjustment process of the air guide shell 5.

[0057] Example 6 Specifically, such as Figure 1 and Figure 2 As shown, the grinding unit includes a robotic arm 104 and a grinding mechanism 105 mounted on the moving end of the robotic arm 104. The robotic arm 104 can drive the grinding mechanism 105 to move in multiple directions to achieve automated grinding of the welding bevel of the impeller 103 and other areas. Both the robotic arm 104 and the grinding mechanism 105 are commonly used automated processing equipment in the field. Existing structures such as multi-axis robotic arms 104, grinding wheel grinding mechanisms 105, and belt grinding mechanisms 105 can be adopted according to actual processing needs. This application does not make specific limitations in this regard.

[0058] A tool magazine 106 can also be set up.

[0059] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A machining apparatus for grinding large-diameter impellers with dust removal function, comprising a rotary table (101) capable of rotating an impeller (103), a grinding unit being provided on one side of the rotary table (101), a grinding station being formed in the area of ​​the rotary table (101) near the grinding unit, and dust removal mechanisms (102) being provided on both sides of the grinding station, characterized in that: The dust removal mechanism (102) includes an installation assembly (3), on which a plurality of evenly distributed air guide shells (5) are provided. The plurality of air guide shells (5) are distributed in a plane along the radial direction of the installation position of the impeller (103), and the air guide shells (5) can rotate relative to the installation assembly (3). The dust removal mechanism (102) also includes a drive assembly (4). When the rotary table (101) drives the impeller (103) to rotate, the drive assembly (4) is triggered and drives the air guide shell (5) to rotate, so that the air outlet of the air guide shell (5) deflects to the side opposite to the direction of blade rotation, so that the air outlet faces the tangential direction of the windward surface of the blade.

2. A processing device for grinding large diameter impellers with dust removal function according to claim 1, characterized in that: The drive assembly (4) includes a drive unit (42) mounted on the mounting assembly (3) and a transmission unit (44) connected to the drive unit (42). The drive unit (42) is provided with trigger units (43) on both sides along the rotation trajectory of the rotary table (101). The trigger units (43) extend radially into the impeller (103) along the mounting position of the impeller (103) and can engage with the blades on the impeller (103).

3. A processing device for grinding large diameter impellers with dust removal function according to claim 2, characterized in that: The trigger part (43) can rotate relative to the mounting assembly (3), and a transmission structure is provided between the trigger part (43) and the drive part (42); when the rotary table (101) drives the impeller (103) to rotate, the blade pushes the corresponding trigger part (43) to rotate, the trigger part (43) drives the drive part (42) to run through the transmission structure, and drives the air guide shell (5) to deflect to the opposite side of the blade rotation direction through the transmission part (44); When the trigger part (43) disengages from the corresponding blade, the trigger part (43) is reset under the action of the reset member, and drives the air guide shell (5) to reset to the initial position where the air outlet tends to be radially along the rotary table (101) through the drive part (42) and the transmission part (44).

4. The machining apparatus for grinding large-diameter impellers with dust removal function as described in claim 3, characterized in that: The drive assembly (4) further includes a support rod (41) fixed on the mounting assembly (3). The end of the support rod (41) is provided with a drive part (42). The drive part (42) includes a drive shaft (423) rotatably disposed at the end of the support rod (41). The drive shaft (423) can be reset after rotation. At least one end of the drive shaft (423) is fixedly provided with a drive gear (422). The drive gear (422) is connected to the air guide shell (5) through the transmission part (44). The drive shaft (423) is connected to the trigger part (43). When the trigger part (43) moves under the action of the blade, the trigger part (43) drives the drive shaft (423) to rotate, and drives the air guide shell (5) to deflect through the drive gear (422) and the transmission part (44).

5. The machining apparatus for grinding large-diameter impellers with dust removal function as described in claim 3, characterized in that: The triggering part (43) includes a fixed plate (431) fixedly connected to the drive shaft (423). Both sides of the fixed plate (431) along the rotation trajectory of the rotary table (101) are fixedly provided with a synchronous rod (432) with an arc-shaped structure. The end of the synchronous rod (432) away from the fixed plate (431) is rotatably connected to the trigger plate (433). The trigger plate (433) can be reset after rotation. The trigger plate (433) is arranged radially along the installation position of the impeller (103), and a check rod (434) is fixedly provided on the trigger plate (433). The check rod (434) can overlap with the corresponding synchronous rod (432). The trigger plate (433) is used to contact the blades on the impeller (103) and drive the fixed plate (431) and drive shaft (423) to rotate through the synchronizing rod (432).

6. The machining apparatus for grinding large-diameter impellers with dust removal function as described in claim 5, characterized in that: The check rod (434) and the synchronizing rod (432) form a one-way overlapping fit. When the trigger plate (433) moves along the rotation direction of the impeller (103) under the action of the blade, the check rod (434) abuts against the corresponding synchronizing rod (432) so that the trigger plate (433) drives the synchronizing rod (432) to move synchronously. When the trigger plate (433) moves in the opposite direction, the check rod (434) and the synchronizing rod (432) release from abutment, so that the trigger plate (433) can rotate relative to the synchronizing rod (432).

7. The machining apparatus for grinding large-diameter impellers with dust removal function as described in claim 4, characterized in that: The transmission unit (44) includes a self-rotating transmission gear (441), which meshes with the drive gear (422) on the drive unit (42) for transmission connection. The transmission gear (441) is fixedly connected to the air guide shell (5) on one side by a rod.

8. The machining apparatus for grinding large-diameter impellers with dust removal function as described in claim 1, characterized in that: It also includes a bearing ring (1), which is sleeved around the outer periphery of the rotary table (101) and is coaxially arranged with the installation position of the impeller (103). The bearing ring (1) is installed on the outer shell of the rotary table (101). The dust removal mechanism (102) also includes an L-shaped support frame (2), which is fixed on the support ring (1), and the mounting assembly (3) is mounted on the support frame (2); The mounting assembly (3) includes a mounting plate (31) that is inclined toward the mounting position of the impeller (103), and the drive assembly (4) and the air guide shell (5) are both fixed on the mounting plate (31).

9. A machining apparatus with dust removal function for grinding large-diameter impellers as described in claim 8, characterized in that: The mounting plate (31) can be tilted relative to the support frame (2) at an adjustable angle. The two sides of the mounting plate (31) are slidably connected to the vertical and horizontal surfaces of the support frame (2) through sliding parts, so that the mounting plate (31) can be adjusted on the support frame (2) and the tilt posture of the mounting plate (31) relative to the impeller (103) installation position can be changed.

10. A machining apparatus with dust removal function for grinding large-diameter impellers as described in claim 1, characterized in that: The mounting assembly (3) is provided with a drive assembly (4), which is connected to at least two of the multiple air guide shells (5) in a transmission manner. Adjacent air guide shells (5) are fixedly connected by rods so that the multiple air guide shells (5) rotate synchronously. Alternatively, the mounting assembly (3) may be provided with a plurality of drive assemblies (4), each of the drive assemblies (4) being drivenly connected to at least one and at most two air guide shells (5).

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