Adjustable clamp for numerical control machining of helicopter rotor blade ironing

Abstract

The application discloses a kind of adjustable clamps for helicopter rotor blade ironing numerical control processing, it is related to blade ironing processing technical field, including processing base, the upper surface of processing base is provided with processing mechanism, processing mechanism includes clamping assembly and auxiliary assembly, clamping assembly includes main clamping component and auxiliary clamping component, main clamping component includes: lifting carriage, lifting carriage is set to the upper surface of processing base, lifting carriage is provided with main electric rotating shaft at the junction with processing base, auxiliary clamping component includes: sliding rack, sliding rack is set to the side surface of lifting carriage, the bottom surface of sliding rack is provided with auxiliary electric rotating shaft, the upper surface of sliding rack is provided with positioner motor, auxiliary assembly includes: servo motor, servo motor is set to the side surface of processing base, in the scheme, by being provided with processing mechanism, helicopter rotor blade ironing processing can be efficiently completed, guarantee processing quality and stability, improve finished product qualification rate.

Description

Technical Field

[0001] This invention relates to the field of rotor blade cladding machining technology, specifically an adjustable fixture for CNC machining of helicopter rotor blade cladding. Background Technology

[0002] As a crucial piece of equipment for modern air transport and military operations, the performance of a helicopter's rotor system directly determines its flight stability, load capacity, and maneuverability. The rotor blades, as the core component of the rotor system, must withstand complex aerodynamic loads and centrifugal forces. Their structural strength, surface precision, and material uniformity are critical to flight safety. The blade cladding, a key structural component of the blade, is typically made of high-strength alloy materials and covers the leading edge or critical areas of the blade to enhance its impact resistance, wear resistance, and corrosion resistance. Its processing quality directly affects the dynamic balance and service life of the blade. With the continuous improvement of helicopter performance requirements in the aviation industry, the geometry of the blade cladding is becoming increasingly complex, with surface precision requirements reaching the micrometer level, while also meeting the dual standards of lightweighting and high strength. Furthermore, to adapt to the processing needs of different blade models, the dimensions of the cladding are becoming increasingly diverse. CNC machining technology, with its advantages of high precision and high efficiency, has become the mainstream process for manufacturing blade cladding.

[0003] Existing technologies still have many drawbacks. In the glue filling process, due to the lack of effective auxiliary penetration methods, the sealant cannot smoothly and fully penetrate into every hidden corner of the joint area of ​​the parts. This results in a large number of unfilled gaps between the parts. These gaps not only compromise the overall sealing of the assembled parts, making the product susceptible to the intrusion of harmful substances such as dust and moisture during use, affecting the normal operation of internal precision components, but also reduce the stability of the connection between parts. When the product is subjected to external forces or frequent vibrations, it is prone to loosening and displacement, thus disrupting the smoothness of the entire production process and increasing subsequent rework costs and time costs. In addition, during glue filling, the lack of precise and effective temperature control means that if the ambient temperature is too low, the glue will become viscous and have poor fluidity, making it difficult for operators to fill the glue evenly. When fillers are applied too finely to the joint areas, numerous gaps appear between components. This damages the integrity of the cladding structure, reduces overall strength, and creates potential problems for future use. The product is prone to loosening and damage due to external impacts or long-term vibration. Temperature is also crucial when gluing the blade components to the cladding. If the temperature does not reach the appropriate melting range for the adhesive in time, the adhesive cannot melt fully, its fluidity is limited, and the stiff adhesive cannot be evenly spread on the contact surface. The cladding component cannot be tightly and perfectly bonded to the leading edge of the blade component, which greatly reduces the bonding effect. Temperature is even more critical during the adhesive curing stage after the cladding process. If the curing temperature is not suitable, the process will be abnormally slow. Low temperatures cannot provide sufficient energy for curing, and the adhesive will not cure for a long time, significantly extending the product molding time, increasing the production cycle, and reducing efficiency. Incompletely cured products are susceptible to interference from dust, collisions, etc., affecting quality. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable fixture for CNC machining of helicopter rotor blade cladding, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable fixture for CNC machining of helicopter rotor blade cladding, comprising:

[0006] A processing base, the upper surface of which is provided with a processing mechanism, the processing mechanism including a clamping assembly and an auxiliary assembly, the clamping assembly including a main clamping component and a secondary clamping component, the main clamping component including: a lifting slide, the lifting slide being disposed on the upper surface of the processing base, a main electric rotating shaft being disposed at the connection between the lifting slide and the processing base, a bottom electric pressure plate being disposed on one side surface of the main electric rotating shaft, and a sliding side rod being disposed on one side surface of the bottom electric pressure plate;

[0007] The auxiliary clamping component includes: a sliding platform, which is disposed on one side surface of the lifting slide, an auxiliary electric rotating shaft is disposed on the bottom surface of the sliding platform, an adjusting motor is disposed on the upper surface of the sliding platform, a meshing screw is disposed on the output end of the adjusting motor, a connecting meshing block is meshed on the surface of the meshing screw, a connecting rod is disposed on one side surface of the connecting meshing block, and a clamping platform is disposed at the end of the connecting rod.

[0008] The auxiliary components include: a servo motor, which is disposed on one side surface of the processing base. A threaded rod is disposed on the output end of the servo motor. A sliding plate is engaged with the surface of the threaded rod. A top connecting rod is disposed on the upper surface of the sliding plate. Two fixed frustums are disposed on the upper surface of the top connecting rod.

[0009] Furthermore, the upper surface of the processing base is provided with a main limiting disc, one end of the sliding side rod is provided with a limiting rolling disc, the upper surface of the lifting slide is provided with a drive motor, the output end of the drive motor is provided with a vertical screw, the vertical screw is located inside the lifting slide, the surface of the vertical screw is engaged with a top movable pressure plate, the bottom surface of the top movable pressure plate is provided with a driven disc, the side surface of the driven disc is provided with multiple flip-up brackets, the connection between the flip-up brackets and the driven disc is provided with a small electric shaft, the bottom surface of the bottom electric pressure plate is provided with a fixing block that cooperates with the flip-up brackets, a rotor is held between the top movable pressure plate and the bottom electric pressure plate, and the side surface of the rotor is provided with multiple blades.

[0010] Furthermore, a contact-side annular plate is provided on one side surface of the clamping platform, one end of the sliding side rod penetrates the bottom surface of the clamping platform, a limiting frame plate for limiting the sliding side rod is provided on the upper surface of the processing base, and a secondary limiting disc that cooperates with the clamping platform is also provided on the upper surface of the processing base. A bottom clamping platform is provided on the upper surface of the clamping platform, a sliding groove is provided on the upper surface of the connecting rod, and an adhesive storage tank is provided inside the sliding groove. A side telescopic motor for driving the adhesive storage tank to slide is provided on the side surface of the connecting rod, an additional platform is provided on one side surface of the bottom clamping platform, and a pusher is provided on the upper surface of the additional platform. The electric pole has a top plate at the end of its output shaft, a metal-clad component on the upper surface of its bottom clamping platform, a main lifting motor on one side of the clamping platform, a lifting pressure block at the end of its output shaft, an upper slot on one side of the lifting pressure block, two limiting blocks on the bottom surface of the lifting pressure block, two limiting side plates on the upper surface of the clamping platform, a movable plate between the two limiting side plates, side limiting posts on the side surface of the movable plate, a fixed connecting platform on the upper surface of the clamping platform, and a connecting spring between the movable plate and the fixed connecting platform.

[0011] Furthermore, the two fixed truncated cones are arranged vertically and connected by a top connecting rod. A telescopic motor is provided on the upper surface of each of the two fixed truncated cones. A movable push plate is provided at the end of the output shaft of the telescopic motor. Both sides of the movable push plate are provided with retraction hooks through a small electric turntable. A rotatable rotating collar is fitted on the outer surface of each of the two fixed truncated cones. A connecting vertical rod is provided between the two rotating collars.

[0012] Furthermore, the upper surface of the top connecting rod is also provided with a fixed sliding base plate to facilitate the rotation of the collar for bearing. The upper surface of the fixed truncated cone above is provided with a central fixing frame. The upper surface of the central fixing frame is provided with a top shifting motor. The output shaft end of the top shifting motor is provided with a connecting side support plate. The bottom end of the connecting side support plate is connected to the two side surfaces of the rotating collar.

[0013] Furthermore, each of the two rotating collars has a support platform on both sides. The upper surfaces of the two support platforms on the same layer are respectively provided with a heating box and a cooling box. The two sides of the support platform are also provided with intercepting rotating rods. The upper surface of the support platform is also provided with a rear limiting plate for restricting the movement of the heating box. One side surface of the clamping platform is provided with a lower slot that cooperates with the rotating collar of the lower layer. One side surface of the clamping platform is provided with an electric rotating rod. One side surface of the electric rotating rod is provided with two temperature transfer rotating frames. The upper surface of the temperature transfer rotating frames is also provided with a reserved slot. The two temperature transfer rotating frames cooperate with the upper slot and the lower slot, respectively.

[0014] Furthermore, the processing mechanism also includes an anchoring assembly, which includes: a bottom slide, the bottom slide being disposed on one side surface of the processing base, a hydraulic rod being disposed inside the bottom slide, a connecting slide table being disposed at the end of the hydraulic rod, an anchoring frame strip being disposed on the upper surface of the connecting slide table, a dual-axis motor being disposed at the center of the anchoring frame strip, and push rods being disposed at both ends of the dual-axis motor.

[0015] Furthermore, the anchoring frame strip is provided with a bottom limiting plate and a top limiting plate on both sides inside. Multiple anchoring screws are filled between the bottom limiting plate and the top limiting plate. Anchoring holes are also provided on the bottom surface of both ends of the anchoring frame strip. An anchoring motors are provided on the upper surfaces of both ends of the anchoring frame strip. An anchoring head is provided at the end of the output shaft of the anchoring motor.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this solution, by setting up a clamping assembly, the main clamping component, through a lifting slide, main electric rotating shaft, bottom electric pressure plate, and top movable pressure plate, can not only use the drive motor to drive the vertical screw to achieve precise lifting and lowering of the top movable pressure plate for initial clamping of the rotor, but also through multiple flip-up buckles on the side surface of the driven plate body, which engage with the fixed buckles on the bottom surface of the bottom electric pressure plate under the action of a small electric shaft, forming a unique locking structure, which effectively enhances the clamping stability of the rotor. The auxiliary clamping component, through a sliding platform, auxiliary electric rotating shaft, adjusting motor, and meshing screw, can flexibly adjust its position to achieve precise clamping and movement of the metal-clad part. In the metal-clad process, the main and auxiliary clamping components, together with the main and auxiliary electric rotating shafts, drive the rotor and metal-clad part to shift, causing the glue at the joint to flow inward due to gravity, better filling the gaps, significantly improving the quality and efficiency of the metal-clad process, and solving the problems of poor stability and insufficient glue filling in the clamping of complex workpieces and the metal-clad process of traditional fixtures;

[0018] 2. In this solution, auxiliary components are used to achieve horizontal movement through servo motors, threaded rods, and sliding plates. A rotating collar and a top-mounted shifting motor are used to switch between the heating and cooling boxes. When the propeller parts are glued to the cladding, the heating box transfers heat to melt the glue, enhancing its fluidity and making it easier for the cladding to deform and cover the leading edge of the propeller parts, thus improving the adhesive effect. After completing multiple propeller part cladding processes, the cooling box transfers low temperatures to quickly cure the glue, reducing the finished product molding time. This rapid temperature switching system, through precise temperature control, effectively ensures the stability of the processing process, improves processing efficiency, and overcomes the problems of long glue curing time and unstable adhesive effects in traditional processing methods.

[0019] 3. In this solution, by setting up an anchoring component and using a dual-axis motor to drive the push rod, in conjunction with the bottom and top limiting plates, the orderly filling and precise pushing of the anchoring screws within the anchoring frame strip is achieved. After the blade and cladding parts are glued together, the hydraulic rod of the bottom slide moves the anchoring frame strip to the designated position. Simultaneously, the dual-axis motor extends its output shaft to push the anchoring screws out of the anchoring holes and through the fixing holes on the surfaces of the cladding parts and blades. The anchoring motor then fixes the anchoring screws, completing further reinforcement. This achieves automated pushing and fixing of the anchoring screws, improving the efficiency and accuracy of the anchoring process and effectively solving the problems of cumbersome operation and unstable reinforcement effect of traditional anchoring methods. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main clamping component of the present invention;

[0022] Figure 3 This is a schematic diagram of the anchoring component structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the secondary clamping component structure of the present invention;

[0024] Figure 5 This is a side view of the secondary clamping component of the present invention.

[0025] Figure 6 This is a schematic diagram of the auxiliary component structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection structure between the rotating collar and the fixed frustum of the present invention;

[0027] Figure 8 This is a schematic diagram of the bottom clamping platform and lifting pressure block structure of the present invention.

[0028] In the diagram: 1. Machining base; 2. Lifting carriage; 3. Top movable pressure plate; 4. Bottom carriage; 5. Anchoring frame bar; 6. Engaging screw; 7. Clamping platform; 8. Restricting frame plate; 9. Engaging sliding plate; 10. Drive motor; 11. Vertical screw; 12. Main electric rotating shaft; 13. Propeller blade; 14. Driven disc; 15. Tilting buckle; 16. Bottom electric pressure plate; 17. Restricting rolling disc; 18. Rotor component; 9. Fixing block; 20. Sliding side rod; 21. Main limiting disc; 22. Dual-axis motor; 23. Bottom limiting plate; 24. Top limiting plate; 25. Anchoring motor; 26. Anchoring hole; 27. Sliding platform; 28. Adjusting motor; 29. ​​Auxiliary electric rotating shaft; 30. Connecting rod; 31. Glue storage tank; 32. Lifting pressure block; 33. Contact side ring plate; 34. Temperature transfer rotating frame; 35. Top slot; 36. Side 37. Telescopic motor; 38. Lower slot; 39. Secondary limiting disc; 40. Electric rotating rod; 41. Reserved slot; 42. Connecting engagement block; 43. Servo motor; 44. Top connecting rod; 45. Fixed sliding base plate; 46. Rotating collar; 47. Fixed truncated cone; 48. Connecting vertical rod; 49. Support platform; 50. Intercepting rotating rod; 51. Heating box; 52. Cooling box; 53. Rear limiting plate; 54. Telescopic 54. Electric motor; 55. Movable push plate; 56. Retraction hook bar; 57. Central fixing frame; 58. Top repositioning motor; 59. Connecting side support plate; 60. Additional platform; 61. Pushing pole; 62. Top position plate; 63. Iron-clad parts; 64. Bottom clamping platform; 65. Main lifting motor; 66. Restricting bottom block; 67. Movable plate; 68. Restricting side plate; 69. Fixed connecting platform; 70. Side restriction post; 71. Connecting spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 8 An adjustable fixture for CNC machining of helicopter rotor blade cladding, comprising,

[0031] The machining base 1, as the core support component of the entire machining system, plays a crucial role in stable load-bearing and precise guidance. It is cast from high-strength alloy material and undergoes precision CNC machining and heat treatment to ensure sufficient rigidity and stability. A machining mechanism is installed on the upper surface of the machining base 1. This mechanism includes clamping components and auxiliary components. The clamping components include a main clamping component and a secondary clamping component. The main clamping component includes a lifting slide 2, which is the main support structure of the main clamping component and is located on the upper surface of the machining base 1. It is made of high-strength aluminum alloy profile, featuring light weight and high strength. A main electric rotating shaft 12 is installed at the connection between the lifting slide 2 and the machining base 1. The main electric rotating shaft 12 is driven by a high-precision servo motor, enabling precise angle adjustment. By controlling the rotation of the main electric rotating shaft 12, the angle of the entire main clamping component can be adjusted. A bottom electric pressure plate 16 is installed on one side surface of the main electric rotating shaft 12. A sliding side rod 20 is provided on one side surface of the pressure plate 16, a main limiting disc 21 is provided on the upper surface of the processing base 1, a limiting rolling disc 17 is provided at one end of the sliding side rod 20, a drive motor 10 is provided on the upper surface of the lifting slide 2, a vertical screw 11 is provided on the output end of the drive motor 10, the vertical screw 11 is located inside the lifting slide 2, and a top movable pressure plate 3 is engaged on the surface of the vertical screw 11. The top movable pressure plate 3 is made of high-strength steel plate, and a driven disc is provided on the bottom surface of the top movable pressure plate 3. The driven disk body 14 has multiple flip-up brackets 15 on its side surface. A small electric shaft is provided at the connection between the flip-up brackets 15 and the driven disk body 14. The bottom surface of the bottom electric pressure plate 16 is provided with a fixing block 19 that cooperates with the flip-up brackets 15. The fixing block 19 is made of high-strength alloy material and its surface has been specially treated to have high friction and wear resistance. The top movable pressure plate 3 and the bottom electric pressure plate 16 hold a rotor 18. The side surface of the rotor 18 is provided with multiple blades 13.

[0032] In this scheme, the equipment uses a clamping assembly to clamp the rotor 18 and the cladding 62, and then assembles them to complete the processing steps. During use, the operator first places the rotor 18 on the upper surface of the bottom electric pressure plate 16. Then, the operator signals the start of the drive motor 10, which drives the vertical screw 11 to rotate. Under the meshing effect, the top movable pressure plate 3 descends, clamping the rotor 18. Subsequently, multiple flip-up latches 15 on the side surface of the driven plate 14 flip downwards under the action of a small electric shaft. Their ends engage with the fixing blocks 19 on the bottom surface of the bottom electric pressure plate 16, locking the rotor 18 in place. The bottom electric pressure plate 16 can then be driven... Rotor 18 rotates, changing the position of multiple blades 13 on its side surface, thus cooperating with the auxiliary clamping component to complete the metal-cladding process. During the metal-cladding process, the main electric shaft 12 and auxiliary electric shaft 29 are driven to rotate by the operator's signal, causing the entire clamping assembly to shift rotor 18 and metal-clad component 62. During this process, the two ends of the sliding side rod 20 slide inside the main limiting disk 21 and auxiliary limiting disk 38, and are restricted and stopped after shifting to a certain angle. By shifting the clamping assembly, when fixing rotor 18 and metal-clad component 62, the glue at the joint can flow inward with gravity, better filling the gap between the two, thus achieving a better bonding effect.

[0033] The auxiliary clamping component, as an indispensable and important part of the machining mechanism, works in conjunction with the main clamping component to achieve stable clamping and precise machining of the workpiece. The auxiliary clamping component includes: a sliding table 27, which is set on one side surface of the lifting slide 2; an auxiliary electric rotating shaft 29 is set on the bottom surface of the sliding table 27, which is driven by a high-performance servo motor and has high-precision angle control capability; an adjusting motor 28 is set on the upper surface of the sliding table 27, and a meshing screw 6 is set on the output end of the adjusting motor 28; a connecting meshing block 41 is engaged on the surface of the meshing screw 6; and a connecting rod body 30 is set on one side surface of the connecting meshing block 41. The upper surface of the connecting rod 30 is provided with a groove, and the inside of the groove is provided with an adhesive storage tank 31. The adhesive storage tank 31 is used to store adhesive that may be used during the processing. It adopts a sealed design to effectively prevent adhesive leakage and evaporation. The side surface of the connecting rod 30 is provided with a side telescopic motor 36 for driving the adhesive storage tank 31 to slide. The end of the connecting rod 30 is provided with a clamping platform 7. The clamping platform 7 is a key part of the auxiliary clamping component that directly contacts and clamps the workpiece. It is made of high-strength alloy material and its surface is precision machined with high flatness and roughness requirements to ensure good contact with the workpiece and provide stable clamping. A certain clamping force is provided. A contact side ring plate 33 is provided on one side surface of the clamping table 7. One end of the sliding side rod 20 penetrates the bottom surface of the clamping table 7. A limiting frame plate 8 for limiting the sliding side rod 20 is provided on the upper surface of the processing base 1. A secondary limiting disc 38 that cooperates with the clamping table 7 is also provided on the upper surface of the processing base 1. A bottom clamping table 63 is provided on the upper surface of the clamping table 7. The bottom clamping table 63 is a base platform for placing workpieces. An auxiliary table 59 is provided on one side surface of the bottom clamping table 63. A push rod 60 is provided on the upper surface of the auxiliary table 59. A top plate 61 is provided at the end of the output shaft of the push rod 60. The upper surface of the bottom clamping table 63... The surface is covered with a metal-clad part 62. A main lifting motor 64 is also provided on one side surface of the clamping platform 7. A lifting pressure block 32 is provided at the end of the output shaft of the main lifting motor 64. Two limiting bottom blocks 65 are provided on the bottom surface of the lifting pressure block 32. Two limiting side plates 67 are also provided on the upper surface of the clamping platform 7. A movable plate 66 is provided between the two limiting side plates 67. A side limiting post 69 is provided on the side surface of the movable plate 66. The function of the side limiting post 69 is to limit the sliding range of the movable plate 66 and prevent it from exceeding the specified position. A fixed connecting platform 68 is provided on the upper surface of the clamping platform 7. A connecting spring 70 is provided between the movable plate 66 and the fixed connecting platform 68.

[0034] The auxiliary clamping component is used to clamp the clad iron part 62 and assemble it with the rotor part 18 clamped by the main clamping component to complete the cladding process. In use, the operator places the clad iron part 62 on the upper surface of the auxiliary platform 59, and the main lifting motor 64 is retracted via a signal drive, causing the lifting pressure block 32 to descend and press the clad iron part 62 onto the upper surface of the bottom clamping platform 63 for initial clamping. Subsequently, the push rod 60 is driven by a signal drive, and the top plate 61 pushes the clad iron part 62 to one side on the upper surface of the bottom clamping platform 63. Simultaneously, the adjustment motor 28 is also started, and through the meshing effect of the engagement screw 6 and the connecting engagement block 41, the clamping mechanism is activated. The platform 7 moves closer to the position of the main clamping component. Upon reaching its furthest position, the contact side ring plate 33 engages with the side surface of the bottom electric pressure plate 16. At this point, the adjustment motor 28 stops driving and stops the clamping platform 7 from moving. Subsequently, the side telescopic motor 36 drives the glue storage tank 31 to move towards the position of the clamping platform 7 and sprays glue inside the bottom clamping platform 63. As the top plate 61 pushes, the glue storage tank 31 gradually sprays glue at different positions inside the bottom clamping platform 63. When the top plate 61 pushes the metal-clad part 62 to one side surface of the movable plate 66, it stops due to the restriction effect of the movable plate 66. At this point, the main clamping component drives the rotor 18 to rotate. The main motor 64 rotates one of the blade components 13 on its side surface into the interior of the auxiliary clamping component. During this process, the entire clamping assembly deflects under the action of the main electric rotating shaft 12 and the auxiliary electric rotating shaft 29. After the blade component 13 rotates into the interior of the cladding iron 62, it pushes the movable plate 66 to one side. At this time, the connecting spring 70 is compressed, and the cladding iron 62 is no longer restricted by the movable plate 66. Subsequently, the push rod 60 continues to drive the top plate 61 to push the cladding iron 62 towards the position of the main clamping component until the cladding iron 62 covers the leading edge of the blade component 13. Then, the main lifting motor 64 drives the lifting pressure block 32 to move downward to press the cladding iron 62. The iron part 62 is pressed to deform it and completely cover the surface of the blade part 13. During this process, the auxiliary components are activated to assist in the fixing effect of the blade part 13 and the iron part 62. Then, each component is reset and waits for the bottom electric pressure plate 16 to rotate the rotor part 18 and rotate the next blade part 13 to the working position for the next operation. When the previously assembled rotor part 18 is rotated away, it will be further fixed by the anchoring components. After each blade part 13 on the side surface of the rotor part 18 has completed the fixing work of the iron part 62, the auxiliary components play a role again to make the glue fix more quickly, thereby reducing the molding time and cost.

[0035] As an important supplement to the entire machining system, the auxiliary components undertake several key functions, such as workpiece position adjustment and temperature control. The auxiliary components include a servo motor 42, which is one of the power sources for the entire auxiliary system. The servo motor 42 is located on one side surface of the machining base 1. A threaded rod is provided on the output end of the servo motor 42, and a sliding plate 9 engages with the surface of the threaded rod. A top connecting rod 43 is provided on the upper surface of the sliding plate 9. Two fixed frustums 46 are provided on the upper surface of the top connecting rod 43, arranged vertically and connected by the top connecting rod 43. A telescopic motor 53 is provided on the upper surface of each of the two fixed frustums 46. A movable push plate 54 is provided at the end of the output shaft of the telescopic motor 53. The movable push plate 54 is made of high-strength alloy material and its surface has been specially treated to have high wear resistance and corrosion resistance. Both sides of the movable push plate 54 are provided with retraction hooks 55 via small electric turntables. The outer surfaces of the two fixed truncated cones 46 are fitted with rotatable rotating collars 45. The rotating collars 45 are connected to the fixed truncated cones 46 by high-precision bearings, enabling unobstructed 360-degree rotation. A connecting vertical rod 47 is provided between the two rotating collars 45. The connecting vertical rod 47 is made of high-strength steel and serves to connect and stabilize the two rotating collars 45. The upper surface of the top connecting rod 43 is also provided with a fixed sliding mechanism to facilitate the bearing of the rotating collars 45. The base plate 44 has a central fixing frame 56 on its upper surface of the fixed frustum 46. The central fixing frame 56 adopts a triangular structure design, which has high stability and strength. A top shifting motor 57 is set on the upper surface of the central fixing frame 56. The output shaft of the top shifting motor 57 is provided with a connecting side support plate 58. The bottom end of the connecting side support plate 58 is connected to the two side surfaces of the rotating collar 45. Both side surfaces of the two rotating collars 45 are provided with a bearing platform 48. The bearing platform 48 is made of high-strength aluminum alloy material and the surface has been specially treated to have good thermal conductivity and corrosion resistance. The upper surfaces of the two bearing platforms 48 on the same layer are respectively provided with a heating box 50 and a cooling box 51. The heating box 50 is equipped with a heating box 50. The heating element, i.e., the heating tube, can heat the workpiece. The cooling box 51 is equipped with a cooling device, i.e., a refrigeration compressor, which can cool the workpiece. The two sides of the support platform 48 are also equipped with intercepting rotating rods 49. The upper surface of the support platform 48 is also equipped with a rear limiting plate 52 for restricting the movement of the heating box 50. The rear limiting plate 52 is made of high-strength steel to ensure that the heating box 50 is stably placed on the support platform 48. One side of the clamping platform 7 has a lower slot 37 that mates with the lower rotating collar 45. One side of the lifting pressure block 32 has an upper slot 35 that mates with the upper lower slot 37. One side of the clamping platform 7 is equipped with an electric rotating rod 39.Two temperature-transfer rotating frames 34 are provided on one side surface of the electric rotating rod 39. A pre-reserved slot 40 is also provided on the upper surface of each temperature-transfer rotating frame 34. The two temperature-transfer rotating frames 34 respectively mate with the upper slot 35 and the lower slot 37.

[0036] The auxiliary components are used to ensure the stability of the processing and improve processing efficiency through temperature control. When gluing the paddle part 13 to the iron-clad part 62, the electric rotating rod 39 is driven by the operator's signal to rotate, turning the two temperature-transfer rotating frames 34 out from the upper slot 35 and the lower slot 37 respectively. Then, the servo motor 42 is started, and the meshing effect drives the meshing sliding plate 9 to move towards the position of the clamping platform 7. After reaching the farthest distance, the two intercepting rotating rods 49 rotate downward, so that they no longer block the heating box 50. Then, the telescopic motors 53 on the upper surface of the two fixed round platforms 46 extend, and the movable push plate 54 pushes the heating box 50 forward, moving the two heating boxes... The heating element 50 is pushed into the two heat transfer rotating frames 34. Then, the auxiliary components reset, and the two heat transfer rotating frames 34 return to the upper slot 35 and lower slot 37 via the electric rotating rod 39. The two heating boxes 50 are then activated, generating heat. This heat is transferred to the surface of the cladding part 62 via the lifting pressure block 32 and the bottom clamping platform 63, melting the adhesive inside and increasing its fluidity. This allows the adhesive to better fill the gaps between the cladding part 62 and the paddle part 13, improving the bonding effect. Furthermore, the heating effect, after being transferred to the cladding part 62, makes it easier for it to deform. Under the action of the lifting pressure block 32 and the bottom clamping platform 63, deformation can occur more easily. The rotation is performed so that it covers the leading edge surface of the blade component 13. After multiple blade components 13 on the surface of a rotor component 18 have completed the iron-cladding process with the bottom clamping table 63, another round of rotation will be performed to reinforce the iron-cladding effect on the surface of each blade component 13. Before this, the electric rotating rod 39 is driven to rotate again by the operator's signal to rotate the heat transfer rotating frame 34 out again. Then, the servo motor 42 moves the meshing sliding plate 9 to the designated position again. Then, the telescopic motor 53 extends, and the movable push plate 54 at its end is in contact with one side surface of the heating box 50. The two retraction hooks 55 flip downward and insert their front ends into the reserved slot 40. Then, the telescopic motor 53 is retracted, using two The retraction hook 55 hooks the heating box 50 and pulls it back to the upper surface of the support platform 48. Then, the two intercepting rotating rods 49 reset and restrict the heating box 50. Then, the top shifting motor 57 drives the support platform 48 to rotate, so that the two support platforms 48 change positions. Then, in the same way, the cooling box 51 is pushed into the interior of the temperature transfer rotating frame 34, so that the lifting pressure block 32 and the bottom clamping platform 63 transfer the low temperature. After a paddle 13 re-enters between the lifting pressure block 32 and the bottom clamping platform 63, it is re-clamped by the lifting pressure block 32 and the bottom clamping platform 63, making it more stable and at the same time, the glue inside is quickly cured, reducing the molding time of the finished product.

[0037] The processing mechanism also includes an anchoring assembly, which includes: a bottom slide 4, which is disposed on one side surface of the processing base 1; a hydraulic rod is disposed inside the bottom slide 4; a connecting slide table is disposed at the end of the hydraulic rod; an anchoring frame 5 is disposed on the upper surface of the connecting slide table; the anchoring frame 5 is the core component of the anchoring assembly; a dual-axis motor 22 is disposed at the center of the anchoring frame 5; push rods are disposed at both ends of the dual-axis motor 22; and bottom limiting plates 23 are disposed on both sides of the anchoring frame 5. The top limiting plate 24, bottom limiting plate 23 and top limiting plate 24 are all made of high-strength steel plate, and the surface is precision machined to have a high flatness. Multiple anchoring screws are filled between the bottom limiting plate 23 and top limiting plate 24. The surfaces of the blade part 13 and the iron-clad part 62 are provided with corresponding fixing holes. Anchoring holes 26 are also provided on the bottom surface of both ends of the anchoring frame bar 5. An anchoring motor 25 is provided on the upper surface of both ends of the anchoring frame bar 5. An anchoring head is provided at the end of the output shaft of the anchoring motor 25.

[0038] The anchoring assembly further reinforces the cladding 62 and the blade 13. During use, after the blade 13 and the cladding 62 are glued together, the rotor 18 is rotated by the bottom electric pressure plate 16. After the glued blade 13 is moved to the designated position, the anchoring rod 5 is moved towards the rotor 18 via the hydraulic rod inside the bottom slide 4. Before starting the work, multiple anchoring screws are pre-installed inside the anchoring rod 5. After being installed inside the anchoring frame 5, the upper and lower surfaces of its nut will be restricted by the top limiting plate 24 and the bottom limiting plate 23 respectively. Then, when anchoring is required, the two output shafts of the dual-axis motor 22 extend simultaneously to push the anchoring screw to one side, pushing the two anchoring screws down from the anchoring holes 26 at both ends of the anchoring frame 5 and through the fixing holes on the surface of the iron-clad part 62 and the blade part 13. Then, the anchoring motor 25 fixes the anchoring screws, further reinforcing the iron-clad part 62 and the blade part 13.

[0039] The working principle of this invention is:

[0040] During the initial preparation, the staff placed the rotor 18 on the upper surface of the bottom electric pressure plate 16, operated the drive motor 10 to drive the vertical screw 11 to rotate, causing the top movable pressure plate 3 to descend and clamp the rotor 18 together with the bottom electric pressure plate 16. Then, the small electric shaft drove the flipping buckle 15 to flip downward and engage with the fixed buckle 19 to lock the rotor 18. At the same time, the clad iron part 62 was placed on the auxiliary platform 59, and the main lifting motor 64 drove the lifting pressure block 32 to descend and initially clamp the clad iron part 62.

[0041] Then, the iron-cladding process is carried out. The electric pole 60 drives the top plate 61 to push the iron-cladding part 62. The adjustment motor 28 drives the clamping platform 7 to approach the main clamping component. After the contact side ring plate 33 engages with the bottom electric pressure plate 16, it stops. The side telescopic motor 36 drives the glue storage tank 31 to spray glue at different positions inside the bottom clamping platform 63. The main clamping component drives the rotor 18 to rotate, so that the blade 13 enters the auxiliary clamping component. After pushing the movable plate 66, the iron-cladding part 62 continues to be pushed to cover the leading edge of the blade 13. The main lifting motor 64 drives the lifting pressure block 32 again to press the iron-cladding part 62 to deform it.

[0042] Next, the auxiliary components come into play. The electric rotating rod 39 rotates the temperature transfer rotating frame 34, the servo motor 42 drives the meshing sliding plate 9 to move, and the telescopic motor 53 pushes the heating box 50 into the temperature transfer rotating frame 34 to heat and melt the glue, making the iron-clad part 62 easy to deform. After the iron cladding is completed, the cooling box 51 is replaced to quickly cure the glue.

[0043] Finally, the anchoring process is carried out. The bottom electric pressure plate 16 drives the rotor 18 to rotate, the hydraulic rod inside the bottom slide 4 pushes the anchoring frame 5 to move, the dual-axis motor 22 pushes the anchoring screw through the fixing holes of the iron-clad part 62 and the blade part 13, and the anchoring motor 25 fixes the anchoring screw, completing the further reinforcement.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable fixture for CNC machining of helicopter rotor blade cladding, characterized in that, include: A processing base, the upper surface of which is provided with a processing mechanism, the processing mechanism including a clamping assembly and an auxiliary assembly, the clamping assembly including a main clamping component and a secondary clamping component, the main clamping component including: a lifting slide, the lifting slide being disposed on the upper surface of the processing base, a main electric rotating shaft being disposed at the connection between the lifting slide and the processing base, a bottom electric pressure plate being disposed on one side surface of the main electric rotating shaft, and a sliding side rod being disposed on one side surface of the bottom electric pressure plate; The auxiliary clamping component includes: a sliding platform, which is disposed on one side surface of the lifting slide, an auxiliary electric rotating shaft is disposed on the bottom surface of the sliding platform, an adjusting motor is disposed on the upper surface of the sliding platform, a meshing screw is disposed on the output end of the adjusting motor, a connecting meshing block is meshed on the surface of the meshing screw, a connecting rod is disposed on one side surface of the connecting meshing block, and a clamping platform is disposed at the end of the connecting rod. The auxiliary components include: a servo motor, which is disposed on one side surface of the processing base, and a meshing threaded rod is disposed on the output end of the servo motor. A meshing sliding plate is meshed on the surface of the meshing threaded rod, and a top connecting rod is disposed on the upper surface of the meshing sliding plate. Two fixed frustums are disposed on the upper surface of the top connecting rod. The upper surface of the processing base is provided with a main limiting disc, one end of the sliding side rod is provided with a limiting rolling disc, the upper surface of the lifting slide is provided with a drive motor, the output end of the drive motor is provided with a vertical screw, the vertical screw is located inside the lifting slide, the surface of the vertical screw is engaged with a top movable pressure plate, the bottom surface of the top movable pressure plate is provided with a driven disc, the side surface of the driven disc is provided with multiple flip-up brackets, the connection between the flip-up brackets and the driven disc is provided with a small electric shaft, the bottom surface of the bottom electric pressure plate is provided with a fixing block that cooperates with the flip-up brackets, a rotor is held between the top movable pressure plate and the bottom electric pressure plate, and the side surface of the rotor is provided with multiple blades; A contact-side annular plate is provided on one side surface of the clamping platform. One end of the sliding side rod penetrates the bottom surface of the clamping platform. A limiting frame plate for restricting the sliding side rod is provided on the upper surface of the processing base. A secondary limiting disc that cooperates with the clamping platform is also provided on the upper surface of the processing base. A bottom clamping platform is provided on the upper surface of the clamping platform. A sliding groove is provided on the upper surface of the connecting rod. An adhesive storage tank is provided inside the sliding groove. A side telescopic motor for driving the adhesive storage tank to slide is provided on the side surface of the connecting rod. An additional platform is provided on one side surface of the bottom clamping platform. A push rod is provided on the upper surface of the additional platform. The output shaft of the push pole is provided with a top plate at its end. A metal-clad part is placed on the upper surface of the bottom clamping platform. A main lifting motor is also provided on one side surface of the clamping platform. A lifting pressure block is provided at the output shaft end of the main lifting motor. An upper slot is opened on one side surface of the lifting pressure block. Two limiting bottom blocks are provided on the bottom surface of the lifting pressure block. Two limiting side plates are also provided on the upper surface of the clamping platform. A movable plate is provided between the two limiting side plates. A side limiting post is provided on the side surface of the movable plate. A fixed connecting platform is provided on the upper surface of the clamping platform. A connecting spring is provided between the movable plate and the fixed connecting platform.

2. The adjustable fixture for CNC machining of helicopter rotor blade cladding as described in claim 1, characterized in that: The two fixed truncated cones are arranged vertically and connected by a top connecting rod. A telescopic motor is provided on the upper surface of each fixed truncated cone. A movable push plate is provided at the end of the output shaft of the telescopic motor. Both sides of the movable push plate are provided with retraction hooks through a small electric turntable. A rotatable rotating collar is fitted on the outer surface of each fixed truncated cone. A connecting vertical rod is provided between the two rotating collars.

3. The adjustable fixture for CNC machining of helicopter rotor blade cladding as described in claim 2, characterized in that: The upper surface of the top connecting rod is also provided with a fixed sliding base plate to facilitate the rotation of the collar for bearing. The upper surface of the fixed truncated cone above is provided with a central fixing frame. The upper surface of the central fixing frame is provided with a top shifting motor. The output shaft end of the top shifting motor is provided with a connecting side support plate. The bottom end of the connecting side support plate is connected to the two side surfaces of the rotating collar.

4. The adjustable fixture for CNC machining of helicopter rotor blade cladding as described in claim 3, characterized in that: Both sides of the two rotating collars are provided with a support platform. The upper surfaces of the two support platforms on the same layer are respectively provided with a heating box and a cooling box. The two sides of the support platform are also provided with an intercepting rotating rod. The upper surface of the support platform is also provided with a rear limiting plate for restricting the movement of the heating box. One side of the clamping platform is provided with a lower slot that mates with the rotating collar of the lower layer. One side of the clamping platform is provided with an electric rotating rod. One side of the electric rotating rod is provided with two temperature transfer rotating frames. The upper surface of the temperature transfer rotating frames is also provided with a reserved slot. The two temperature transfer rotating frames mate with the upper slot and the lower slot, respectively.

5. The adjustable fixture for CNC machining of helicopter rotor blade cladding as described in claim 1, characterized in that: The processing mechanism further includes an anchoring assembly, which includes: a bottom slide, which is disposed on one side surface of the processing base, a hydraulic rod is disposed inside the bottom slide, a connecting slide table is disposed at the end of the hydraulic rod, an anchoring frame is disposed on the upper surface of the connecting slide table, a dual-axis motor is disposed at the center of the anchoring frame, and push rods are disposed at both ends of the dual-axis motor.

6. The adjustable fixture for CNC machining of helicopter rotor blade cladding as described in claim 5, characterized in that: The anchoring frame is also provided with a bottom limiting plate and a top limiting plate on both sides inside. Multiple anchoring screws are filled between the bottom limiting plate and the top limiting plate. Anchoring holes are also provided on the bottom surface of both ends of the anchoring frame. An anchoring motors are provided on the upper surface of both ends of the anchoring frame. An anchoring head is provided at the end of the output shaft of the anchoring motor.

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