Fan impeller processing device

Abstract

The present invention relates to the technical field of fan impeller processing, and specifically to a fan impeller processing device, including a center tube, a clamping mechanism, a torsion angle unit and a placement unit. In the present invention, the deflection angle between the adjustment column and the fixed column is the torsion angle of the profile. The torsion angle of the profile is adjusted by adjusting the spacing between the adjustment column and the fixed column, which is convenient for adapting to the needs of different torsion angles. The rotation range of the torsion angle bar is limited by the adjustment column, which improves the stability of the torsion operation process, ensures that the torsion angle of the profile is the required angle, and performs torsion operations at multiple locations at the same time through the same drive, and the placement and clamping of each profile are also implemented by the same drive, which improves the efficiency of the torsion operation, and reduces the error of the torsion angle between each blade, thereby reducing the error between the torsion processes of each blade, ensuring that the torsion angle of each blade is the same, and multiple profiles are operated at the same time, which improves the overall work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fan impeller processing, and in particular to a fan impeller processing device. Background Art

[0002] The impeller is one of the core components of the fan and has an important impact on the performance and efficiency of the fan. The materials of the blades in the fan impeller are diverse to meet the needs of different application scenarios, including composite materials, aluminum alloys, stainless steel, and magnesium-aluminum alloys. When producing the blades of the fan impeller, the profile needs to be twisted so that the blades have a certain twist angle to improve the dynamic efficiency of the airflow during rotation, so that it can push the air more effectively, improve efficiency, reduce noise, increase output power, and reduce energy consumption.

[0003] At present, in the process of twisting the profile, the two ends of the profile are usually clamped first, and then the two ends of the profile are rotated. The two ends of the profile are subjected to torques in different directions, thereby completing the twisting operation. The current twisting operation process has the following problems: 1. When the profile is twisted, the two ends of the profile are mainly driven by a driving source (such as a hydraulic cylinder, etc.). This twisting operation method has a large error and can easily cause the profile to be twisted too much or too little, which in turn affects the output power of the subsequent fan and increases energy consumption.

[0004] 2. There are multiple blades in the fan impeller, and the torsion angles of multiple blades need to be consistent to ensure that each blade is affected by the airflow to the same extent during operation and to ensure the overall output efficiency. Therefore, the torsion angles of all profiles need to be consistent during the production process. If only a single profile is twisted each time, the clamping and twisting links of multiple profiles need to be performed separately, which may easily lead to large errors in the torsion angles of multiple blades on the same fan impeller, resulting in unsatisfactory output efficiency and high energy consumption of the subsequent fan assembly. Secondly, the efficiency of the single-piece processing method is low and the cost is high. Summary of the invention

[0005] Based on this, it is necessary to provide a fan impeller processing device to solve the above-mentioned problems of the prior art.

[0006] The present application provides a fan impeller processing device, comprising: a center tube, a plurality of circumferentially evenly distributed base plates are fixedly arranged on the circumferential surface of the center tube with an opening at the upper end, two mutually symmetrical side plates are arranged on the upper surface of the base plate for radial sliding along the center tube, clamping mechanisms for clamping profiles are arranged on the corresponding two side plates, and a torsion angle unit for driving the clamping mechanism to perform torsion is arranged on the center tube.

[0007] The clamping mechanism includes a torsion angle shaft, and the side plate is rotatably provided with a torsion angle shaft whose axis extends radially along the center tube, and the opposite surfaces of the two torsion angle shafts are fixedly provided with U-shaped clamping blocks, and the U-shaped area of ​​the clamping block is stepped and the width from the opening of the clamping block to the bottom of its U-shaped area decreases gradually, and the center tube and the base plate are provided with a driving group for driving the corresponding two clamping blocks to clamp, and the base plate is provided with a placement unit for preliminarily placing and clamping the profile.

[0008] The torsion angle unit comprises a torsion angle bar, one end of the torsion angle shaft away from the corresponding clamping block is fixedly sleeved with the torsion angle bar, and the central tube is provided with a driving group for driving two torsion angle bars on the same base plate to rotate synchronously and oppositely.

[0009] According to a favorable embodiment, the clamping mechanism also includes a circular plate, and the upper end surface of the bottom of the inner part of the central tube is provided with a circular plate for sliding up and down through two telescopic rods which are symmetrical left and right and have vertical axes. A lifting plate which corresponds to the base plate one by one and is located directly above the base plate is fixedly provided on the circular plate through an L-shaped connecting frame. The lifting plate slides radially along the central tube and is penetrated by a sliding block which corresponds to the side plate one by one. The lower end surface of the sliding block is fixedly provided with two mutually symmetrical reinforcing rods which have vertical axes through a connecting plate, and the upper end surface of the side plate is provided with a docking groove which corresponds to the reinforcing rod one by one.

[0010] According to a favorable embodiment, the driving group includes a threaded shaft, and the upper end surface of the lifting plate is rotatably provided with a threaded shaft whose axis extends radially along the center tube through a fixed block, the threaded shaft passes through the corresponding two sliding blocks and is threadedly matched with the sliding blocks, and adjacent ends of multiple threaded shafts are fixedly provided with bevel gear 1, and a transmission shaft with a vertical axis is rotatably provided on the circular plate, and the upper end surface of the transmission shaft is fixedly provided with bevel gear 2 which meshes with bevel gear 1.

[0011] According to a preferred embodiment, the drive group also includes a drive shaft, the lower end surface of the transmission shaft is fixedly provided with the drive shaft through a spring rod, the upper end surface of the bottom of the center tube is fixedly provided with a threaded tube with an upper end opening and coaxial with the drive shaft, and the circumferential surface of the drive shaft is fixedly provided with a drive column that cooperates with the threaded tube thread.

[0012] According to a preferred embodiment, the placement unit includes a clamping bar, and two mutually symmetrical clamping bars are slidably arranged on the base plate, and the sliding direction of the clamping bar is perpendicular to the sliding direction of the corresponding side plate, and the opposite sides of the two relative clamping bars are fixedly provided with a clamping plate through two spring rods, and the opposite back sides of the two clamping plates are provided with two upper and lower symmetrical sliding bars, and two inclined bars are fixedly arranged on the sliding bars, which are respectively located on both sides of the corresponding clamping plates, and the upper inclined bar is inclined from bottom to top in a direction away from the corresponding clamping plate, and the inclined bar on one of the clamping plates on the same base plate is U-shaped, and the inclined bar on the other clamping plate is rectangular, and the relative inclined bars on different clamping plates on the same base plate cooperate with each other.

[0013] According to a preferred embodiment, the placement unit also includes an L-shaped frame, and the lifting plate is fixedly provided with an L-shaped frame corresponding to the clamping strip one by one, and the clamping strip is composed of an inclined section and a vertical section from top to bottom, which are inclined from top to bottom away from the adjacent clamping plate, and the vertical section of the L-shaped frame cooperates with the inclined section of the clamping strip.

[0014] According to a favorable embodiment, the placement unit also includes positioning holes, the sliding bar is slidably arranged on the corresponding clamping plate, and the opposite back surfaces of the two corresponding clamping plates are provided with two groups of holes distributed along the width direction of the clamping plates, and the hole groups include multiple positioning holes arranged equidistantly from top to bottom, and the sliding bar is inserted with positioning pins that cooperate with the positioning holes.

[0015] According to a favorable embodiment, the pushing group includes a rectangular plate, a rectangular plate is fixedly arranged on the base plate, a pushing shaft with an axis perpendicular to the corresponding clamping plate is slidably penetrated on the rectangular plate, a transverse bar is fixedly arranged near the end surface of the corresponding clamping plate, two L-shaped connecting strips are slidably arranged on the transverse bar along its length direction, a pushing strip that cooperates with the corresponding torsion angle strip is fixedly arranged on the horizontal section of the connecting strip, the pushing strip close to the center tube is in opposite directions to the pushing strip away from the center tube, a limiting plate is fixedly arranged on the side plate, and the connecting strip slides through the corresponding limiting plate, and a volute spring for resetting the torsion angle strip is fixedly arranged between the torsion angle strip and the corresponding side plate.

[0016] According to a favorable embodiment, the pushing group further comprises a lower pressing plate, and the L-shaped frame is fixedly provided with a lower pressing plate cooperating with the corresponding pushing shaft, and the lower pressing plate is inclined from bottom to top toward the direction approaching the corresponding L-shaped frame.

[0017] According to a favorable embodiment, the torsion angle bar and the corresponding side plate are jointly provided with an adjustment group, the adjustment group includes an adjustment hole, a plurality of circumferentially evenly distributed adjustment holes are opened on the end face of the side plate facing the corresponding torsion angle bar, two mutually staggered adjustment plates are movably sleeved on the torsion angle shaft, a fixing column is fixedly provided on the adjustment plate close to the torsion angle bar, and an adjustment column is fixedly provided on the adjustment plate away from the torsion angle bar, the fixing column and the adjustment column both cooperate with the adjustment hole, and the adjustment plate corresponding to the fixing column is rotatably sleeved on the torsion angle shaft, and the adjustment plate corresponding to the adjustment column is sleeved on the torsion angle shaft.

[0018] In summary, the present invention includes at least one of the following beneficial effects: 1. In the present invention, the deflection angle between the adjusting column and the fixed column is the torsion angle of the profile. The torsion angle of the profile is adjusted by adjusting the distance between the adjusting column and the fixed column, which is convenient for adapting to the needs of different torsion angles. The rotation range of the torsion angle bar is limited by the adjusting column, which improves the stability of the torsion operation process and ensures that the torsion angle of the profile is the required angle. The torsion operations in multiple places are performed simultaneously by the same drive, which improves the efficiency of the torsion operation and reduces the error of the torsion angle between each blade.

[0019] Second, in the present invention, the profile is initially limited by the clamping plate, and the axis of the torsion axis is located at the center of the profile, thereby ensuring stability during the subsequent torsion process and avoiding the scrapping of the profile due to the misalignment between the center of the profile and the axis of the torsion axis during torsion. At the same time, the stability of the profile clamping is improved by the mutual cooperation of the left and right V-shaped clamping areas.

[0020] 3. The two corresponding clamping blocks in the present invention cooperate with each other to clamp and fix the profile through the internal stepped shape, thereby improving the stability of the subsequent torsion process. Secondly, it is easy to adapt to profiles of different thicknesses. By inserting the reinforcing rod into the docking groove, the lifting plate, the base plate and the two side plates form a rectangular frame together, thereby improving the stability of the profile when subjected to force during the subsequent torsion operation.

[0021] 4. In the present invention, a circular plate is used to drive all lifting plates to move synchronously as the sole drive for twisting all profiles. The cooperation between the lower pressure plate and the corresponding driving shaft enables the corresponding two driving bars to drive the two torsion angle bars on the same base plate to rotate, so that all torsion angle bars are twisted synchronously. All profiles are subjected to the same force and twisted at the same time. The placement and clamping processes of each profile are implemented by the same drive, thereby reducing the error between the twisting processes of each blade, ensuring that the torsion angles of each blade are the same, and multiple profiles are operated at the same time, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a fan impeller processing device provided according to an embodiment of the present invention is shown.

[0024] Figure 2 A schematic diagram of the three-dimensional structure between the central tube, the base plate and the lifting plate provided according to an embodiment of the present invention is shown.

[0025] Figure 3 A schematic diagram of a partial cross-sectional three-dimensional structure between a central tube, a base plate and a lifting plate provided according to an embodiment of the present invention is shown.

[0026] Figure 4 The embodiment of the present invention provides Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 A schematic diagram of the three-dimensional structure between the lifting plate, the base plate and the abutting plate provided according to an embodiment of the present invention is shown.

[0028] Figure 6 A schematic diagram of the three-dimensional structure between the lifting plate, the lower pressing plate and the L-shaped frame provided according to an embodiment of the present invention is shown.

[0029] Figure 7 The embodiment of the present invention provides Figure 6 Enlarged view of point B in the middle.

[0030] Figure 8 A schematic diagram of a partial three-dimensional structure among a lifting plate, a sliding block and a side plate provided according to an embodiment of the present invention is shown.

[0031] The above drawings include the following reference numerals: 1, center tube; 2, base plate; 3, side plate; 4, clamping mechanism; 40, torsion angle shaft; 41, clamping block; 42, circular plate; 420, lifting plate; 421, sliding block; 422, reinforcing rod; 43, driving group; 430, threaded shaft; 431, bevel gear 1; 432, transmission shaft; 433, bevel gear 2; 434, driving shaft; 435, threaded tube; 436, driving column; 44, placement unit; 440, tightening strip; 441. Abutment plate; 442. Sliding bar; 443. Tilt bar; 444. L-shaped frame; 445. Positioning hole; 446. Positioning latch; 5. Torsion unit; 50. Torsion bar; 51. Pushing group; 510. Rectangular plate; 511. Pushing shaft; 512. Connecting bar; 513. Pushing bar; 514. Limiting plate; 515. Volute spring; 516. Pressing plate; 52. Adjusting group; 520. Adjusting hole; 521. Adjusting plate; 522. Fixed column; 523. Adjusting column. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figure 1 and Figure 2 As shown, a fan impeller processing device includes: a center tube 1, a plurality of circumferentially evenly distributed base plates 2 are fixedly arranged on the circumferential surface of the center tube 1 with an opening at the upper end, two mutually symmetrical side plates 3 are arranged on the upper end surface of the base plate 2 for radial sliding along the center tube 1, clamping mechanisms 4 for clamping profiles are arranged on the corresponding two side plates 3, and a torsion angle unit 5 for driving the clamping mechanism 4 to twist is arranged on the center tube 1.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the clamping mechanism 4 includes a torsion angle shaft 40, and the side plate 3 is rotatably provided with a torsion angle shaft 40 whose axis extends radially along the central tube 1, and the opposite surfaces of the two torsion angle shafts 40 are fixedly provided with U-shaped clamping blocks 41, and the U-shaped area of ​​the clamping block 41 is stepped and the width from the opening of the clamping block 41 to the bottom of its U-shaped area decreases gradually, and the central tube 1 and the base plate 2 are provided with a driving group 43 for driving the corresponding two clamping blocks 41 to clamp, and the base plate 2 is provided with a placement unit 44 for preliminarily placing and clamping the profile.

[0035] like Figure 1 , Figure 2 and Figure 7 As shown, the torsion unit 5 includes a torsion bar 50, and the torsion bar 50 is fixedly sleeved on one end of the torsion shaft 40 away from the corresponding clamping block 41, and a driving group 51 is provided on the central tube 1 for driving the two torsion bars 50 on the same base plate 2 to rotate synchronously and oppositely.

[0036] In the initial state, the spacing between the two corresponding clamping blocks 41 is greater than the length of the profile. Then the staff places the profile between the two clamping blocks 41, and the placement unit 44 preliminarily supports and positions the profile, so that the upper and lower end surfaces of the profile are symmetrical about the torsion axis 40, which is convenient for subsequent torsion operations. Then the driving group 43 works to make the corresponding two clamping blocks 41 on all base plates 2 approach each other and clamp and fix the profile through their internal steps, thereby improving the stability of the subsequent torsion process. The stepped structure of the clamping block 41 is convenient for adapting to the torsion requirements of profiles of different thicknesses and improving the universality of the device. Then the pushing group 51 works to drive all torsion axes 40 to rotate, and the two torsion axes 40 on the same base plate 2 rotate in opposite directions, so that the corresponding two clamping blocks 41 twist the profile, and the profile is twisted to the required angle to form blades. After completing the torsion operation, all blades are taken out and a new batch of profiles are put in to repeat the above operation.

[0037] like Figure 1 , Figure 3 and Figure 5 As shown, the clamping mechanism 4 also includes a circular plate 42, and the upper end surface of the inner bottom of the central tube 1 is provided with a circular plate 42 which slides up and down through two telescopic rods which are symmetrical and have vertical axes. The circular plate 42 is driven by an external hydraulic cylinder (not shown in the figure) to move up and down, and a lifting plate 420 which corresponds to the base plate 2 one by one and is located directly above the base plate 2 is fixedly provided on the circular plate 42 through an L-shaped connecting frame, and the lifting plate 420 slides radially along the central tube 1 and penetrates a sliding block 421 which corresponds to the side plate 3 one by one, and the lower end surface of the sliding block 421 is fixedly provided with two mutually symmetrical reinforcing rods 422 which have vertical axes through a connecting plate, and the upper end surface of the side plate 3 is provided with a docking groove which corresponds to the reinforcing rod 422 one by one.

[0038] In the initial state, the reinforcing rod 422 is located above the corresponding side panel 3. After the staff places the profile that needs to be twisted between the two clamping blocks 41 on the same base plate 2, the external hydraulic cylinder works to make the circular plate 42 and the lifting plate 420 thereon move downward synchronously. During the downward movement of the lifting plate 420, the driving group 43 drives the corresponding two clamping blocks 41 to approach each other to clamp the profile. At the same time, the lifting plate 420 drives the reinforcing rod 422 thereon to insert into the corresponding docking groove, so that the subsequent sliding block 421 drives the side panel 3 to move synchronously. By inserting the reinforcing rod 422 into the docking groove, the lifting plate 420, the base plate 2 and the two side panels 3 form a rectangular frame together, thereby improving the stability of subsequent twisting operations.

[0039] like Figure 1-Figure 3 As shown, the driving group 43 includes a threaded shaft 430, and the upper end surface of the lifting plate 420 is rotatably provided with a threaded shaft 430 whose axis extends radially along the central tube 1 through a fixed block, and the threaded shaft 430 passes through two corresponding sliding blocks 421 and is threadedly matched with the sliding blocks 421, and adjacent ends of multiple threaded shafts 430 are fixedly provided with a bevel gear 1 431, and a transmission shaft 432 with a vertical axis is rotatably provided on the circular plate 42, and a bevel gear 2 433 meshing with the bevel gear 1 431 is fixedly provided on the upper end surface of the transmission shaft 432.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the driving group 43 also includes a driving shaft 434, the lower end surface of the transmission shaft 432 is fixedly provided with the driving shaft 434 through a spring rod, the upper end surface of the bottom of the center tube 1 is fixedly provided with a threaded tube 435 with an upper end opening and coaxial with the driving shaft 434, and the circumferential surface of the driving shaft 434 is fixedly provided with a driving column 436 threadedly matched with the threaded tube 435.

[0041] During operation, after the profile is placed between the two clamping blocks 41 and initially clamped by the placement unit 44, the external hydraulic cylinder operates to cause the circular plate 42 and the lifting plate 420 thereon to move downward synchronously. During the downward movement of the circular plate 42, the circular plate 42 drives the driving shaft 434 thereon to move downward into the threaded barrel 435. As the circular plate 42 continues to move downward, the spring rod 1 is compressed. The elastic force generated by the compression of the spring rod 1 causes the driving shaft 434 and the driving shaft 436 to move downward. Through the threaded cooperation between the driving column 436 and the threaded barrel 435, the driving column 436 drives the transmission shaft 432 to rotate synchronously. The transmission shaft 432 drives the bevel gear 2 433 thereon to rotate synchronously, and the meshing between the bevel gear 2 433 and all the bevel gears 1 431 makes all the bevel gears 1 431 drive the corresponding threaded shaft 430 to rotate synchronously, and the threaded cooperation between the threaded shaft 430 and the corresponding two sliding blocks 421 makes the corresponding two sliding blocks 421 approach each other, and the sliding block 421 drives the side plate 3 and the corresponding clamping block 41 to move synchronously through the reinforcing rod 422. Therefore, the two clamping blocks 41 on the same base plate 2 approach each other and clamp the profile to the left and right, which is convenient for subsequent twisting operations.

[0042] like Figure 1 and Figure 5 As shown, the placement unit 44 includes a clamping bar 440, and two mutually symmetrical clamping bars 440 are slidably arranged on the base plate 2, and the sliding direction of the clamping bar 440 is perpendicular to the sliding direction of the corresponding side plate 3, and the opposite sides of the two relative clamping bars 440 are fixedly provided with a clamping plate 441 through two spring rods, and the opposite back sides of the two clamping plates 441 are provided with two upper and lower symmetrical sliding bars 442, and the sliding bars 442 are fixedly provided with two inclined bars 443 respectively located on both sides of the corresponding clamping plates 441, and the upper inclined bar 443 is taken as an example for explanation, the upper inclined bar 443 is inclined from bottom to top in the direction away from the corresponding clamping plate 441, and the inclined bar 443 on one of the clamping plates 441 on the same base plate 2 is U-shaped, and the inclined bar 443 on the other clamping plate 441 is rectangular, and the relative inclined bars 443 on different clamping plates 441 on the same base plate 2 cooperate with each other.

[0043] like Figure 1 and Figure 5 As shown, the placement unit 44 also includes an L-shaped frame 444, and the lifting plate 420 is fixedly provided with an L-shaped frame 444 corresponding to the clamping strip 440 one by one. The clamping strip 440 is composed of an inclined section and a vertical section from top to bottom, which are inclined from top to bottom away from the adjacent clamping plate 441, and the vertical section of the L-shaped frame 444 cooperates with the inclined section of the clamping strip 440.

[0044] In the process of placing the profile, the staff places the profile between the corresponding two clamping blocks 41 from top to bottom. In the process of the lifting plate 420 moving down, the lifting plate 420 drives the L-shaped frame 444 thereon to move down synchronously. In the process of the L-shaped frame 444 moving down, its vertical section squeezes the corresponding tightening strip 440, so that the tightening strip 440 drives the corresponding tightening plate 441 to move synchronously through the spring rod 2, and the tightening plate 441 drives the inclined strip 443 thereon to move synchronously. The two inclined strips 443 located on the upper and lower sides of the corresponding two tightening plates 441 cooperate with each other to form The V-shaped frame provides initial support for the placed profile, and then the lifting plate 420 continues to move downward, and the two clamping plates 441 continue to move until the two clamping plates 441 are in close contact with the profile. As the clamping strip 440 continues to move, the spring rod 2 is compressed, and the elastic force generated by the compression of the spring rod 2 causes the clamping plate 441 to clamp the profile, thereby limiting the position of the profile. After the clamping plate 441 clamps the profile, the clamping operation of the clamping block 41 is performed. By clamping the clamping plate 441 against the profile in advance, the accuracy of the clamping block 41 in clamping the profile is improved.

[0045] In the process of the two clamping plates 441 approaching each other, the clamping plates 441 drive the inclined bars 443 thereon to move synchronously, so that the two corresponding inclined bars 443 on different clamping plates 441 finally cooperate with each other to form a V-shaped clamping area, and the profile is centrally clamped by the two V-shaped clamping areas formed correspondingly above and below, so that the axis of the torsion axis 40 is located in the center of the profile, which ensures the stability in the subsequent torsion process and avoids the center of the profile and the axis of the torsion axis 40 being misaligned during torsion, resulting in the scrapping of the profile. At the same time, the mutual cooperation of the two V-shaped clamping areas improves the clamping stability.

[0046] In the above process, the rectangular pressing strip 440 of the two opposite pressing strips 440 on different pressing plates 441 is inserted into the U-shaped area of ​​the other pressing strip 440, which further improves the stability of the clamping process.

[0047] like Figure 1 and Figure 5 As shown, the placement unit 44 also includes a positioning hole 445, and the sliding bar 442 is slidably set on the corresponding clamping plate 441. The opposite back surfaces of the two corresponding clamping plates 441 are provided with two groups of hole groups distributed along the width direction of the clamping plate 441, and the hole group includes a plurality of positioning holes 445 arranged equidistantly from top to bottom, and a positioning pin 446 that cooperates with the positioning hole 445 is inserted on the sliding bar 442.

[0048] Before placing the profile, remove the positioning pin 446 to release the limit on the sliding bar 442, move the sliding bar 442 to the corresponding positioning hole 445 position, so that the upper and lower sliding bars 442 drive the tilting bar 443 thereon to move synchronously, and after inserting the positioning pin 446 into the positioning hole 445 at the corresponding position, re-lock the sliding bar 442 and the tilting bar 443. It should be noted that the two sliding bars 442 on the same clamping plate 441 have the same up and down adjustment distance. The above-mentioned adjustment method of the tilting bar 443 facilitates adaptation to profiles of different sizes and improves the adaptability of the equipment.

[0049] like Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the pushing group 51 includes a rectangular plate 510, and a rectangular plate 510 is fixedly arranged on the base plate 2. A pushing shaft 511 with an axis perpendicular to the corresponding clamping plate 441 slides through the rectangular plate 510, and a transverse bar is fixedly arranged on the end face of the pushing shaft 511 close to the corresponding clamping plate 441. Two L-shaped connecting bars 512 are slidably arranged on the transverse bar along its length direction, and a pushing bar 513 cooperating with the corresponding torsion angle bar 50 is fixedly arranged on the horizontal section of the connecting bar 512. The pushing bar 513 close to the center tube 1 and the pushing bar 513 away from the center tube 1 are in opposite directions. A limiting plate 514 is fixedly arranged on the side plate 3, and the connecting bar 512 slides through the corresponding limiting plate 514. A volute spring 515 for resetting the torsion angle bar 50 is fixedly arranged between the torsion angle bar 50 and the corresponding side plate 3.

[0050] like Figure 2 and Figure 6 As shown, the pushing group 51 also includes a lower pressing plate 516 , and the L-shaped frame 444 is fixedly provided with a lower pressing plate 516 that cooperates with the corresponding pushing shaft 511 , and the lower pressing plate 516 is inclined from bottom to top toward the direction close to the corresponding L-shaped frame 444 .

[0051] like Figure 2 , Figure 6 and Figure 7 As shown, an adjustment group 52 is commonly provided on the torsion angle bar 50 and the corresponding side plate 3, and the adjustment group 52 includes an adjustment hole 520. A plurality of circumferentially evenly distributed adjustment holes 520 are opened on the end surface of the side plate 3 facing the corresponding torsion angle bar 50, and two mutually staggered adjustment plates 521 are movably sleeved on the torsion angle shaft 40. A fixing column 522 is fixedly provided on the adjustment plate 521 close to the torsion angle bar 50, and an adjustment column 523 is fixedly provided on the adjustment plate 521 away from the torsion angle bar 50, and the fixing column 522 and the adjustment column 523 both cooperate with the adjustment hole 520.

[0052] During operation, as the lifting plate 420 moves downward, the profile is first pressed against the clamping plate 441, and then the corresponding two clamping blocks 41 clamp the profile. After the above clamping process is completed, the lifting plate 420 continues to move downward, and the lifting plate 420 drives the lower pressure plate 516 thereon to move downward synchronously. Through the cooperation between the lower pressure plate 516 and the corresponding driving shaft 511, the driving shaft 511 drives the transverse bar thereon to approach the profile, and the transverse bar drives the driving bar 513 to move synchronously through the connecting bar 512 thereon, and the corresponding two driving bars 513 drive the two torsion bars 50 on the same base plate 2 to rotate, and the two torsion bars 50 rotate in opposite directions. The torsion bar 50 drives the corresponding clamping block 41 to rotate synchronously through the torsion shaft 40, and the clamping block 41 twists the corresponding end of the profile.

[0053] Before the twisting operation, the adjustment plate 521 corresponding to the adjustment column 523 is moved along the axial direction of the torsion angle shaft 40, and the adjustment column 523 on the adjustment plate 521 is moved out of the initially opposite adjustment hole 520, and the adjustment plate 521 is rotated to make the corresponding adjustment column 523 move to be opposite to the other adjustment hole 520, and then the adjustment plate 521 is moved to make the adjustment column 523 inserted into the corresponding adjustment hole 520, and the angle between the adjustment column 523 and the fixed column 522 is adjusted in the above manner. During the twisting operation, the pushing bar 513 pushes the torsion angle bar 50 to rotate, and the torsion angle bar 50 stops moving after rotating to contact with the corresponding adjustment column 523. The deflection angle between the adjustment column 523 and the fixed column 522 is the torsion angle of the profile. The torsion angle of the profile is adjusted through the above operation to adapt to the needs of different torsion angles. Secondly, the rotation range of the torsion angle bar 50 is limited by the adjusting column 523, which improves the accuracy of the twisting operation process and ensures that the torsion angle of the profile is the required angle.

[0054] During the torsion process, the volute spring 515 is deformed. After the torsion is completed, the two side plates 3 are reset and moved, and the blades are removed. The elastic force generated by the deformation of the volute spring 515 resets the torsion angle bar 50, the torsion angle shaft 40 and the clamping block 41. The fixed column 522 blocks the torsion angle bar 50, so that the torsion angle bar 50 and the corresponding clamping block 41 thereon return to their initial state, which is convenient for the subsequent operations of placing the profile, clamping the profile and twisting the profile.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fan impeller processing device, characterized in that: include: A central tube (1), wherein a plurality of circumferentially evenly distributed base plates (2) are fixedly arranged on the circumferential surface of the central tube (1) with an opening at the upper end, two mutually symmetrical side plates (3) are arranged on the upper end surface of the base plate (2) to slide radially along the central tube (1), and clamping mechanisms (4) are arranged on the corresponding two side plates (3), and a torsion angle unit (5) is arranged on the central tube (1); The clamping mechanism (4) comprises a torsion angle shaft (40), the torsion angle shaft (40) having an axis extending radially along the central tube (1) is rotatably arranged on the side plate (3), and U-shaped clamping blocks (41) are fixedly arranged on the opposite surfaces of the two torsion angle shafts (40), and the U-shaped area of ​​the clamping block (41) is stepped and the width of the clamping block (41) decreases from the opening to the bottom of the U-shaped area; The clamping mechanism (4) further comprises a circular plate (42), the upper end surface of the inner bottom of the central tube (1) being provided with a circular plate (42) which is slidably disposed up and down via two telescopic rods which are symmetrical with each other and whose axes are vertical, and a lifting plate (420) which corresponds to the base plate (2) one by one and is located directly above the base plate (2) is fixedly disposed on the circular plate (42) via an L-shaped connecting frame; The central tube (1) and the base plate (2) are provided with a driving group (43) for cooperating with the circular plate (42) to drive the corresponding two clamping blocks (41) to clamp, and the base plate (2) is provided with a placement unit (44) for cooperating with the lifting plate (420) to perform preliminary clamping on the profile; The torsion angle unit (5) comprises a torsion angle bar (50), and the torsion angle bar (50) is fixedly sleeved on one end of the torsion angle shaft (40) away from the corresponding clamping block (41). A driving group (51) is provided on the central tube (1) and cooperates with the lifting plate (420) to drive two torsion angle bars (50) on the same base plate (2) to rotate synchronously and oppositely. The movement of the circular plate (42) and the lifting plate (420) is used as a driving force to achieve multiple clamping and torsion angle operations on the profile.

2. A fan impeller processing device according to claim 1, characterized in that: The lifting plate (420) is radially slidable along the central tube (1) and penetrates a sliding block (421) corresponding to the side plate (3) one by one. The lower end surface of the sliding block (421) is fixedly provided with two mutually symmetrical reinforcing rods (422) with vertical axes through a connecting plate. The upper end surface of the side plate (3) is provided with a docking groove corresponding to the reinforcing rod (422) one by one.

3. A fan impeller processing device according to claim 2, characterized in that: The driving group (43) comprises a threaded shaft (430). The upper end surface of the lifting plate (420) is rotatably provided with a threaded shaft (430) whose axis extends radially along the central tube (1) through a fixed block. The threaded shaft (430) passes through two corresponding sliding blocks (421) and is threadedly matched with the sliding blocks (421). Adjacent ends of the plurality of threaded shafts (430) are fixedly provided with a bevel gear 1 (431). A transmission shaft (432) whose axis is vertical is rotatably provided on the circular plate (42). A bevel gear 2 (433) meshing with the bevel gear 1 (431) is fixedly provided on the upper end surface of the transmission shaft (432).

4. A fan impeller processing device according to claim 3, characterized in that: The driving group (43) further comprises a driving shaft (434), the lower end surface of the transmission shaft (432) being fixedly provided with the driving shaft (434) via a spring rod, the upper end surface of the bottom of the central tube (1) being fixedly provided with a threaded tube (435) having an upper end opening and being coaxial with the driving shaft (434), and the circumferential surface of the driving shaft (434) being fixedly provided with a driving column (436) threadably matched with the threaded tube (435).

5. A fan impeller processing device according to claim 2, characterized in that: The placement unit (44) comprises a tightening bar (440), two mutually symmetrical tightening bars (440) are slidably arranged on the base plate (2), and the sliding direction of the tightening bars (440) is perpendicular to the sliding direction of the corresponding side plate (3), and tightening plates (441) are fixedly arranged on the opposite sides of the two opposite tightening bars (440) through spring rods, and two upper and lower symmetrical sliding bars (442) are arranged on the opposite back sides of the two tightening plates (441), and the sliding bars (442) are fixed Two inclined strips (443) are provided, respectively located on both sides of the corresponding abutting plates (441); the upper inclined strip (443) is inclined from bottom to top in a direction away from the corresponding abutting plates (441); the inclined strip (443) on one of the abutting plates (441) on the same base plate (2) is U-shaped, the inclined strip (443) on the other abutting plate (441) is rectangular; and the opposite inclined strips (443) on different abutting plates (441) on the same base plate (2) cooperate with each other.

6. A fan impeller processing device according to claim 5, characterized in that: The placement unit (44) further comprises an L-shaped frame (444), and the lifting plate (420) is fixedly provided with an L-shaped frame (444) corresponding to the pressing strips (440) one by one, and the pressing strips (440) are composed of an inclined section and a vertical section from top to bottom, which are inclined from top to bottom in a direction away from the adjacent pressing plate (441), and the vertical section of the L-shaped frame (444) cooperates with the inclined section of the pressing strip (440).

7. A fan impeller processing device according to claim 5, characterized in that: The placement unit (44) further comprises a positioning hole (445), the sliding bar (442) is slidably arranged on the corresponding abutting plate (441), and two groups of hole groups distributed along the width direction of the abutting plate (441) are respectively provided on opposite back surfaces of the two corresponding abutting plates (441), wherein the hole groups comprise a plurality of positioning holes (445) arranged equidistantly from top to bottom, and a positioning pin (446) cooperating with the positioning hole (445) is inserted on the sliding bar (442).

8. The fan impeller processing device according to claim 6, characterized in that: The pushing group (51) comprises a rectangular plate (510), the rectangular plate (510) is fixedly arranged on the base plate (2), a pushing shaft (511) with an axis perpendicular to the corresponding abutting plate (441) is slidably penetrated through the rectangular plate (510), a transverse bar is fixedly arranged on the end surface of the pushing shaft (511) close to the corresponding abutting plate (441), two L-shaped connecting bars (512) are slidably arranged on the transverse bar along its length direction, and a connecting bar (512) is fixedly arranged on the horizontal section A push bar (513) is provided which cooperates with the corresponding torsion angle bar (50); the push bar (513) close to the central tube (1) and the push bar (513) far from the central tube (1) face in opposite directions; a limit plate (514) is fixedly provided on the side plate (3); and the connecting bar (512) slides through the corresponding limit plate (514); and a spiral spring (515) for resetting the torsion angle bar (50) is fixedly provided between the torsion angle bar (50) and the corresponding side plate (3).

9. A fan impeller processing device according to claim 8, characterized in that: The pushing group (51) further comprises a lower pressing plate (516), and a lower pressing plate (516) cooperating with the corresponding pushing shaft (511) is fixedly arranged on the L-shaped frame (444), and the lower pressing plate (516) is inclined from bottom to top in a direction close to the corresponding L-shaped frame (444).

10. The fan impeller processing device according to claim 1, characterized in that: The torsion angle bar (50) and the corresponding side plate (3) are jointly provided with an adjustment group (52), the adjustment group (52) comprising an adjustment hole (520), a plurality of circumferentially evenly distributed adjustment holes (520) are opened on the end surface of the side plate (3) facing the corresponding torsion angle bar (50), two mutually staggered adjustment plates (521) are movably sleeved on the torsion angle shaft (40), a fixing column (522) is fixedly provided on the adjustment plate (521) close to the torsion angle bar (50), and an adjustment column (523) is fixedly provided on the adjustment plate (521) away from the torsion angle bar (50), and the fixing column (522) and the adjustment column (523) are both matched with the adjustment hole (520).

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