Machining method for improving heat dissipation effect of engine turbine guide blade

Abstract

The invention discloses a machining method for improving the heat dissipation effect of an engine turbine guide blade, and relates to the technical field of universal machine tools. When a cooling groove is machined in the surface of a plate, due to the fact that the plate needs to be bent and shaped subsequently and has the characteristic of being prone to deformation, the plate deforms when the bottom supporting force is insufficient in the machining process of the cooling groove, and the machining position of the cooling groove is dislocated; the friction force between the supporting rod and the bottom of the plate is reduced through contact between the top arc face of the supporting rod and the plate, the position of the plate can be conveniently adjusted in the clamping process, meanwhile, in the machining process, the clamped supporting rod is close to the center position of the bottom of the plate, the plate is supported, and the situation that the plate needs to be bent subsequently and is prone to deformation is avoided. Therefore, the plate is deformed in the processing process, and the processing position of the plate cooling groove is staggered.

Description

Technical Field

[0001] The present invention relates to the technical field of universal machine tools, and specifically to a processing method for improving the heat dissipation effect of engine turbine guide vanes. Background Art

[0002] In high-performance aero-engines, turbine guide vanes are one of the components with the highest thermal loads on the engine. When high-temperature and high-pressure gas flows out of the combustion chamber, it first passes through the turbine guide vanes. These vanes cause the passing air flow to expand, accelerate, and turn, converting the thermal energy of the gas into kinetic energy, providing the appropriate air flow direction and speed for the subsequent working blades, enabling the working blades to more efficiently convert the kinetic energy of the air flow into rotational mechanical kinetic energy. Cracks caused by high-temperature ablation and excessive thermal stress are common damage modes of turbine guide vanes. Therefore, effective cooling measures must be adopted to ensure the reliable operation of the turbine blades in a high-temperature, high-pressure, and high-speed environment. In the prior art, in order to reduce the temperature of the turbine guide vanes, cold air is usually introduced into the interior of the turbine guide vanes, and complex cooling channels are designed inside the turbine guide vanes;

[0003] When processing cooling grooves on the surface of a plate, since the plate needs to be bent and shaped subsequently and has the characteristic of being easily deformed, when the bottom support force is insufficient during the processing of the cooling grooves on the plate, deformation occurs, causing the processing position of the cooling grooves to be misaligned. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0005] A processing method for improving the heat dissipation effect of engine turbine guide vanes, which consists of the following steps:

[0006] Step 1: Input the dimensional data and processing requirement parameters of the guide vane into 3D software to generate a 3D model. Flatten the curved surface through the 3D software to obtain the flattened plane of a single guide vane;

[0007] Step 2: Generate a processing model, and obtain the processing blanking shape and size of the guide vane according to the size of the vane;

[0008] Step 3: Load and unload the flattened plane of the guide vane on a numerical control machine tool according to the production processing model;

[0009] Step 4: Process the cooling grooves. Place the flat plate into the machine tool, and process the cooling grooves on the flattened plane through the machine tool;

[0010] Step 5: Roll the plate with the processed groove lines into the shape required for the guide vane, and process and remove the excess material around the periphery to obtain the guide vane blade body;

[0011] Step Six: Assemble the processed guide vanes between the outer flow path ring and the inner flow path ring of the casing. After fixing with a fixture, weld them into a whole.

[0012] The machine tool in Step Four includes:

[0013] A frame, on the outer side of which first cylinders are symmetrically installed, and a tool mechanism is slidably installed on the inner wall of the frame. The output end of the first cylinder is fixedly connected to the tool mechanism;

[0014] A moving mechanism, which is fixedly installed on the top of the frame and is located below the tool mechanism. A support plate is fixedly installed on the top of the moving mechanism, and a chute plate is fixedly installed on the top of the support plate;

[0015] A clamping mechanism, which is installed on the top of the chute plate and is symmetrically installed along the central axis position of the chute plate;

[0016] There is a gap between the support plate and the chute plate, and a second cylinder is fixedly installed at the gap between the support plate and the chute plate. Chutes are symmetrically opened on the top of the chute plate, and the clamping mechanism is slidably installed at the chutes of the chute plate. The output end of the second cylinder is fixedly connected to a connecting plate. Blocks are fixedly installed at the bottoms of the opposite surfaces of the clamping mechanism. The bottoms of the blocks are slidably adapted to the top of the chute plate. A clamping groove is opened on the top of one of the blocks, and a clamping block is arranged on the top of the other block. Connecting blocks are fixedly installed on both sides of the top of the block, and support rods are fixedly installed on the top of the connecting blocks. By cooperating with the blocks through the support rods, when fixing the plate, support is provided for the plate. By using the contact between the arc surface at the top of the support rod and the plate, the friction with the bottom of the plate is reduced, which is convenient for adjusting the position of the plate during the clamping process. At the same time, during the processing, the support rod after clamping is close to the central position at the bottom of the plate to provide support for the plate, avoiding the deformation of the plate itself due to the subsequent bending of the plate, resulting in the dislocation of the processing position of the cooling groove of the plate. The top of the support rod is an arc surface.

[0017] Preferably, the clamping mechanism includes a sliding beam, which is slidably installed at the chute of the chute plate, and the bottom of the sliding beam is fixedly connected to the top of the connecting plate. One end of the baffle is fixedly connected to the opposite surface of the sliding beam. Side clamping blocks are fixedly installed on both sides of the opposite surface of the sliding beam. The side clamping blocks are located above the baffle, and the side away from the sliding beam of the side clamping blocks is an inclined surface. Through the inclined surfaces of the side clamping plates, after the side clamping plates on both sides contact the corners of the plate during the clamping process, position adjustment is performed under the clamping pressure, so that the center position of the plate after clamping corresponds to the center position of the chute plate, realizing the top of the plate and avoiding the deviation of the plate, resulting in incorrect processing positions. A frame groove is formed on the opposite surface of the side clamping block, and an inner sliding plate is slidably installed between the side clamping blocks. The two ends of the inner sliding plate are slidably adapted to the frame grooves of the side clamping blocks. An elastic cushion ring is fixedly installed between the inner sliding plate and the sliding beam. Through the cooperation of the clamping plate and the elastic cushion ring, before the side clamping block contacts the corner position of the plate, it contacts both sides of the plate, so that during the position adjustment of the plate, the plate is restricted to a certain extent, avoiding flying out during the position adjustment process of the plate and causing injury to personnel. A clamping plate is fixedly installed on the side of the inner sliding plate away from the sliding beam, and the bottom of the clamping plate is on the same horizontal plane as the top of the support rod.

[0018] Preferably, the moving mechanism includes a support frame, which is fixedly installed on the top of the machine frame, and a threaded rod is rotatably installed on the inner wall of the support frame. A first motor is fixedly installed on the outside of the support frame, and the output end of the first motor is fixedly connected to one end of the threaded rod. A top plate is slidably installed on the top of the support frame. A threaded sleeve is fixedly installed at the bottom of the top plate, and the inner wall of the threaded sleeve is threadedly connected to the outside of the threaded rod. Guide rails are arranged on both sides of the top of the top plate, and a chute block is slidably installed on the top of the guide rails of the top plate. A third cylinder is fixedly installed on the top of the top plate, and the output end of the third cylinder is fixedly installed with an inner sliding beam. The top of the inner sliding beam and the chute block are both fixedly connected to the bottom of the support plate.

[0019] Preferably, the tool mechanism includes a fixing plate which is fixedly adapted to the inner wall of the machine frame. The output end of the first cylinder is fixedly connected to the outside of the fixing plate. A second motor is fixedly installed on the top of the fixing plate. The output end of the second motor penetrates through the fixing plate and extends to its bottom. A transmission shaft is fixedly installed at the output end of the second motor. A tool cylinder is fixedly connected to the bottom end of the transmission shaft. An inner clamping block is slidably installed on the inner wall of the tool cylinder. The bottom of the outer side of the inner clamping block is a conical surface with a gradually decreasing outer diameter from top to bottom. A screw cylinder is threadedly connected to the inner wall of the tool cylinder. Through the cooperation of the conical surface of the screw cylinder and the conical surface of the inner clamping block, after replacing the tool, by rotating the screw cylinder, the screw cylinder moves upward inside the tool cylinder, contacts the conical surface of the inner clamping block, and drives the inner clamping block inward to fix the tool, enabling the replacement and use of tools of different sizes, improving the practicability of the machine tool. The top of the inner wall of the screw cylinder is a conical surface with a gradually decreasing diameter from top to bottom. A tool is fixedly installed between the inner clamping blocks. A ring groove is formed at the bottom of the inner wall of the screw cylinder, and a rubber gasket ring is fixedly installed at the ring groove of the screw cylinder. An inner top block is slidably installed at the ring groove of the screw cylinder. The inner top block is located inside the rubber gasket ring. Through the cooperation of the inner top block and the rubber gasket ring, by using the contact between the mutually approaching ends of the inner top block and the tool and the rubber deformation characteristic of the rubber gasket ring, deformation adjustment is performed according to the size of the tool. During tool replacement, pre-fixation of the tool is achieved according to the friction between the inner top block and the tool. At the same time, during the process of tool rotation and processing, certain support and limitation are provided for the tool, reducing the vibration of the tool during the processing of the plate, improving the processing accuracy, and the mutually approaching ends of the inner top block are in contact with the outer side of the tool.

[0020] The present invention provides a processing method for improving the heat dissipation effect of engine turbine guide vanes. It has the following beneficial effects:

[0021] First, for this machine tool, through the cooperation of the support rod and the baffle, when fixing the plate, support is provided for the plate. By using the contact between the arc surface at the top of the support rod and the plate, the friction with the bottom of the plate is reduced, facilitating the adjustment of the position of the plate during the clamping process. At the same time, during the processing, the support rod near the center position at the bottom of the plate after clamping provides support for the plate, avoiding the deformation of the plate itself due to subsequent bending, resulting in the dislocation of the processing position of the cooling groove of the plate during the processing.

[0022] Second, for this machine tool, through the inclined surfaces of the side clamping plates, during the clamping process, after the two side clamping plates contact the corners of the plate, position adjustment is performed under the clamping pressure, so that the center position of the plate after clamping corresponds to the center position of the chute plate, achieving the clamping of the top of the plate and preventing the plate from shifting, resulting in incorrect processing positions.

[0023] III. Through the cooperation of the clamping plate and the elastic gasket ring, the machine tool contacts both sides of the plate before the side clamping block touches the corner position of the plate, restricting the plate to a certain extent during the position adjustment of the plate, preventing the plate from flying out during the position adjustment process and causing injury to personnel.

[0024] IV. Through the cooperation of the conical surface of the screw barrel and the conical surface of the inner clamping block, after replacing the tool, by rotating the screw barrel, the screw barrel moves upward inside the tool barrel, contacts the conical surface of the inner clamping block, drives the inner clamping block inward, realizes the fixation of the tool, and enables the replacement and use of tools of different sizes, improving the practicality of the machine tool.

[0025] V. Through the cooperation of the inner top block and the rubber gasket ring, by using the contact between the mutually approaching ends of the inner top blocks and the tool, and in combination with the rubber deformation characteristics of the rubber gasket ring, deformation adjustment is carried out according to the size of the tool. During tool replacement, pre-fixation of the tool is achieved based on the friction between the inner top block and the tool. At the same time, during the process of tool rotation and processing, certain support and restriction are provided for the tool, reducing the vibration of the tool during plate processing and improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the machine tool of the present invention;

[0027] Figure 2 is a side view of the structure of the machine tool of the present invention;

[0028] Figure 3 is a schematic partial structural diagram of the machine tool of the present invention;

[0029] Figure 4 is a side view of the partial structure of the machine tool of the present invention;

[0030] Figure 5 is a schematic structural diagram of the clamping mechanism of the present invention;

[0031] Figure 6 is a schematic structural diagram of the moving mechanism of the present invention;

[0032] Figure 7 is a side view of the structure of the moving mechanism of the present invention;

[0033] Figure 8 is a bottom view of the structure of the moving mechanism of the present invention;

[0034] Figure 9 is a schematic structural diagram of the tool mechanism of the present invention;

[0035] Figure 10 is a partial structural dissection diagram of the tool mechanism of the present invention;

[0036] Figure 11 is a schematic diagram of the processing method of the present invention.

[0037] In the figure: 1, frame; 2, moving mechanism; 3, chute plate; 4, clamping mechanism; 5, tool mechanism; 6, first cylinder; 7, support plate; 8, second cylinder; 9, connecting plate; 10, connecting block; 11, support rod; 12, baffle; 21, support frame; 22, first motor; 23, top plate; 24, third cylinder; 25, inner sliding beam; 26, chute block; 27, threaded sleeve; 28, threaded rod; 41, sliding beam; 42, elastic gasket ring; 43, clamping plate; 44, side clamping block; 45, inner sliding plate; 51, fixing plate; 52, second motor; 53, transmission shaft; 54, tool cylinder; 55, tool; 56, inner clamping block; 57, screw cylinder; 58, rubber gasket ring; 59, inner top block. Specific implementation mode

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] The first embodiment is as Figures 1 to 4 And Figure 11 As shown, the present invention provides a technical solution:

[0040] A processing method for improving the heat dissipation effect of engine turbine guide vanes, which consists of the following steps:

[0041] Step 1: Input the size data and processing requirement parameters of the guide vane in 3D software to generate a 3D model, and flatten the curved surface through the 3D software to obtain the flattened plane of a single guide vane.

[0042] Step 2: Generate a processing model, and obtain the processing blanking shape and size of the guide vane according to the size of the blade.

[0043] Step 3: Feed the material according to the production processing model on the numerical control machine to obtain the flattened plane of the guide vane.

[0044] Step 4: Cooling groove processing, put the flat plate into the machine tool, and process the cooling groove on the flattened plane through the machine tool.

[0045] Step 5: Roll the plate with the processed groove lines into the shape required for the guide vane, and process and remove the excess materials around the periphery to obtain the blade body of the guide vane.

[0046] Step 6: Assemble the processed guide vane between the outer flow passage ring and the inner flow passage ring of the casing, and fix it with a fixture and then weld it into a whole.

[0047] The machine tool in Step 4 includes:

[0048] A frame 1, with first cylinders 6 symmetrically installed on the outer side of the frame 1, and a tool mechanism 5 slidably installed on the inner wall of the frame 1. The output end of the first cylinder 6 is fixedly connected to the tool mechanism 5;

[0049] A moving mechanism 2, fixedly installed on the top of the frame 1, and the moving mechanism 2 is located below the tool mechanism 5. A support plate 7 is fixedly installed on the top of the moving mechanism 2, and a chute plate 3 is fixedly installed on the top of the support plate 7;

[0050] A clamping mechanism 4, installed on the top of the chute plate 3, and the clamping mechanism 4 is symmetrically installed along the axis center position of the chute plate 3;

[0051] There is a gap between the support plate 7 and the chute plate 3, and a second cylinder 8 is fixedly installed at the gap between the support plate 7 and the chute plate 3. Chutes are symmetrically opened on the top of the chute plate 3, and the clamping mechanism 4 is slidably installed at the chutes of the chute plate 3. During the process of fixing the plate, the plate is placed on the top of the chute plate 3, and the arc surface at the top of the support rod 11 is used to support the plate. During the clamping process, the second cylinder 8 drives the connecting plate 9, so that the connecting plate 9 drives the clamping mechanisms 4 to approach each other to clamp and fix both sides of the plate. The output end of the second cylinder 8 is fixedly connected to the connecting plate 9. At the bottom of the opposite surfaces of the clamping mechanisms 4, baffles 12 are fixedly installed, and the bottom of the baffle 12 is slidably adapted to the top of the chute plate 3. A clamping groove is opened at the top of one of the baffles 12, and a clamping block is provided at the top of the other baffle 12. And connecting blocks 10 are fixedly installed on both sides of the top of the baffle 12. During the clamping process, the baffles 12 are driven to approach each other. At the same time, the clamping grooves and the clamping blocks of the two baffles 12 position the clamping direction. At the same time, during the moving process, the two support rods 11 approach each other, approaching the center position at the bottom of the plate to provide support for the plate. During the processing of the plate cooling groove, due to the supporting force of the support rod 11, the plate is prevented from deforming. The top of the connecting block 10 is fixedly installed with a support rod 11, and the top of the support rod 11 is an arc surface.

[0052] Second Embodiment. On the basis of the First Embodiment, please refer to Figures 5 to 6As shown, the clamping mechanism 4 includes a sliding beam 41. The sliding beam 41 is slidably installed at the chute of the chute plate 3, and the bottom of the sliding beam 41 is fixedly connected to the top of the connecting plate 9. One end of the baffle 12 is fixedly connected to the opposite surface of the sliding beam 41. Side clamping blocks 44 are fixedly installed on both sides of the opposite surface of the sliding beam 41. Through the fixed connection between the sliding beam 41 and the connecting plate 9, the sliding beam 41 is driven by the second cylinder 8 to slide at the chute of the chute plate 3 and approach each other. At the same time, during the approaching process, the side clamping blocks 44 on both sides are driven by the sliding beam 41 to contact the edge position of the plate. Through the inclined surface of the side clamping block 44 away from the sliding beam 41, the side clamping block 44 is located above the baffle 12, and the side of the side clamping block 44 away from the sliding beam 41 is an inclined surface. A frame groove is formed on the opposite surface of the side clamping block 44, and an inner sliding plate 45 is slidably installed between the side clamping blocks 44. The two ends of the inner sliding plate 45 are slidably adapted to the frame grooves of the side clamping blocks 44. An elastic cushion ring 42 is fixedly installed between the inner sliding plate 45 and the sliding beam 41. During the process of contacting the edge position of the plate, the position of the plate is adjusted by pressing the edge position of the plate through the inclined surface, so that the plate is located at the center position of the top of the chute plate 3. At the same time, during the adjustment process, through the cooperation of the clamping plate 43 and the elastic cushion ring 42, during the position adjustment process, the two sides of the plate are contacted by the clamping plate 43 to make the two sides of the plate parallel. At the same time, under the clamping pressure, the contact pressure is transmitted to the elastic cushion ring 42 through the inner sliding plate 45, causing the elastic cushion ring 42 to deform. The inner sliding plate 45 slides between the side clamping blocks 44 to adjust the position of the clamping plate 43. A clamping plate 43 is fixedly installed on the side of the inner sliding plate 45 away from the sliding beam 41. The bottom of the clamping plate 43 is at the same horizontal plane as the top of the support rod 11.

[0053] The moving mechanism 2 includes a support frame 21. The support frame 21 is fixedly installed on the top of the machine frame 1. A threaded rod 28 is rotatably installed on the inner wall of the support frame 21. A first motor 22 is fixedly installed on the outside of the support frame 21. The output end of the first motor 22 is fixedly connected to one end of the threaded rod 28. Through the cooperation of the first motor 22 and the third cylinder 24, the first motor 22 drives the threaded rod 28 to rotate. By utilizing the threaded connection between the threaded rod 28 and the threaded sleeve 27, the top plate 23 is driven to move horizontally on the top of the support frame 21. The third cylinder 24 is fixedly connected to the inner sliding beam 25 through the output end, so that the inner sliding beam 25 drives the support plate 7 to move longitudinally, and the support plate 7 is slidably adapted to the guide rail and the chute block 26 on the top of the top plate 23. The top plate 23 is slidably installed on the top of the support frame 21. A threaded sleeve 27 is fixedly installed at the bottom of the top plate 23. The inner wall of the threaded sleeve 27 is threadedly connected to the outside of the threaded rod 28. Guide rails are provided on both sides of the top of the top plate 23, and chute blocks 26 are slidably installed on the top of the guide rails of the top plate 23. During the processing of the support plate 7, it moves horizontally and longitudinally according to the processing route of the cooling groove, realizing the longitudinal and horizontal movement of the plate, and cooperating with the tool mechanism 5 to process the cooling groove. A third cylinder 24 is fixedly installed on the top of the top plate 23. The output end of the third cylinder 24 is fixedly installed with an inner sliding beam 25. The top of the inner sliding beam 25 and the chute block 26 are both fixedly connected to the bottom of the support plate 7.

[0054] The third embodiment, on the basis of the first and second embodiments, please refer to Figures 7 to 10As shown in the figure, the tool mechanism 5 includes a fixing plate 51, which is fixedly adapted to the inner wall of the frame 1. The output end of the first cylinder 6 is fixedly connected to the outside of the fixing plate 51. A second motor 52 is fixedly installed on the top of the fixing plate 51. The output end of the second motor 52 penetrates through the fixing plate 51 and extends to its bottom. A transmission shaft 53 is fixedly installed at the output end of the second motor 52. Through the fixed connection between the first cylinder 6 and the fixing plate 51, during the processing, the first cylinder 6 drives the tool 55 to move up and down in the vertical direction. At the same time, during the processing, the second motor 52 drives the transmission shaft 53 to rotate, so that the transmission shaft 53 drives the tool cylinder 54 to rotate. During the rotation, through the cooperation between the screw cylinder 57 and the inner clamping block 56, the inner clamping block 56 clamps and fixes the tool 55, so that the tool 55 rotates at a high speed under the drive. The bottom end of the transmission shaft 53 is fixedly connected to a tool cylinder 54. An inner clamping block 56 is slidably installed on the inner wall of the tool cylinder 54. The bottom of the outer side of the inner clamping block 56 is a conical surface with a gradually decreasing outer diameter from top to bottom. A screw cylinder 57 is threadedly connected to the inner wall of the tool cylinder 54. The top of the inner wall of the screw cylinder 57 is a conical surface that gradually decreases from top to bottom. A tool 55 is fixedly installed between the inner clamping blocks 56. A ring groove is opened at the bottom of the inner wall of the screw cylinder 57. During the process of contacting the plate, the cooling groove is processed according to the movement route. At the same time, during the processing, through the contact between the inner top block 59 and the tool, in cooperation with the clamping and fixing of the tool 55 by the inner clamping block 56, a restriction is provided during the processing of the tool, reducing the vibration during the rotational processing of the tool 55. And a rubber gasket ring 58 is fixedly installed at the ring groove of the screw cylinder 57. An inner top block 59 is slidably installed at the ring groove of the screw cylinder 57. The inner top block 59 is located inside the rubber gasket ring 58, and the mutually approaching ends of the inner top blocks 59 are in contact with the outer side of the tool 55.

[0055] During use, the worker places the plate with the cooling groove to be processed on the top of the chute plate 3 of the machine tool. Then the second cylinder 8 is started, which drives the clamping mechanism 4 through the connecting plate 9 to fix the plate through the clamping mechanism 4. After the plate is fixed, the first cylinder 6 drives the tool mechanism 5 to move vertically, cooperating with the moving mechanism 2 to drive the support plate 7, so that the clamping mechanism 4 drives the plate to move longitudinally and horizontally, and the processing is carried out according to the processing route of the cooling groove.

[0056] During the process of fixing the plate, place the plate on the top of the chute plate 3, and support the plate through the arc surface at the top of the support rod 11. During the clamping process, drive the connecting plate 9 through the second cylinder 8, so that the connecting plate 9 drives the clamping mechanism 4 to approach each other to clamp and fix both sides of the plate. At the same time, during the clamping process, drive the baffles 12 to approach each other. At the same time, the clamping direction is positioned by the clamping grooves and clamping blocks of the two baffles 12. At the same time, during the movement process, make the two support rods 11 approach each other and approach the center position at the bottom of the plate to provide support for the plate. During the processing of the plate cooling groove, prevent the plate from deforming through the supporting force of the support rod 11.

[0057] During the clamping process, due to the fixed connection between the sliding beam 41 and the connecting plate 9, the sliding beam 41 is driven by the second cylinder 8 to slide in the chute of the chute plate 3 and approach each other. At the same time, during the approaching process, drive the side clamping blocks 44 on both sides by the sliding beam 41 to contact the edge position of the plate. Through the inclined surface of the side clamping block 44 away from the sliding beam 41, during the process of contacting the edge position of the plate, press on the edge position of the plate through the inclined surface to adjust the position of the plate so that the plate is at the center position on the top of the chute plate 3. At the same time, during the adjustment process, through the cooperation of the clamping plate 43 and the elastic gasket ring 42, during the process of adjusting the position, contact both sides of the plate through the clamping plate 43 to make both sides of the plate parallel. At the same time, under the clamping pressure, the contact pressure is transmitted to the elastic gasket ring 42 through the inner sliding plate 45, causing the elastic gasket ring 42 to deform, and the inner sliding plate 45 slides between the side clamping blocks 44 to adjust the position of the clamping plate 43.

[0058] During the process of moving the moving mechanism 2, through the cooperation of the first motor 22 and the third cylinder 24, the first motor 22 drives the threaded rod 28 to rotate. Utilizing the threaded connection between the threaded rod 28 and the threaded sleeve 27, drive the top plate 23 to move horizontally on the top of the support frame 21. The third cylinder 24 is fixedly connected to the inner sliding beam 25 through the output end, so that the inner sliding beam 25 drives the support plate 7 to move longitudinally, and the support plate 7 is slidably adapted to the guide rail and the chute block 26 on the top of the top plate 23. During the processing of the support plate 7, move horizontally and longitudinally according to the processing route of the cooling groove to realize the longitudinal and horizontal movement of the plate, and cooperate with the tool mechanism 5 to process the cooling groove.

[0059] In the tool mechanism 5, through the fixed connection between the first cylinder 6 and the fixed plate 51, during the machining process, the first cylinder 6 drives the tool 55 to move up and down in the vertical direction. At the same time, during the machining process, the second motor 52 drives the transmission shaft 53 to rotate, so that the transmission shaft 53 drives the tool cylinder 54 to rotate. During the rotation process, through the cooperation of the screw barrel 57 and the inner clamping block 56, the inner clamping block 56 clamps and fixes the tool 55, so that the tool 55 rotates at high speed under the drive. During the contact with the plate, the cooling groove is machined according to the movement route. At the same time, during the machining process, through the contact between the inner top block 59 and the tool, and in cooperation with the clamping and fixing of the tool 55 by the inner clamping block 56, the tool is restricted during the machining process, reducing the vibration during the rotational machining of the tool 55.

[0060] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0061] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing method for improving the heat dissipation effect of an engine turbine guide blade, characterized in that: It consists of the following steps: Step 1: Input the dimension data and processing requirement parameters of the guide blade into the 3D software to generate a 3D model, flatten the curved surface through the 3D software, and obtain the flattened plane of a single guide blade; Step 2: Generate a processing model and obtain the machining shape and size of the guide blade according to the blade size; Step 3: According to the production and processing model, the CNC machine tool is used to obtain the flattened plane of the guide blade; Step 4: Cooling groove processing: put the flat plate into the machine tool, and use the machine tool to process the cooling groove on the flattened plane; Step 5: Curl the plate with processed groove lines into the required shape of the guide blade, and remove the excess material around the periphery to obtain the guide blade body; Step 6: Assemble the processed guide blades between the outer flow channel ring and the inner flow channel ring of the casing, fix them with a clamp and weld them into a whole.

2. According to the processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 1, the machine tool in step 4 is characterized in that: include: A frame (1), wherein a first cylinder (6) is symmetrically mounted on the outer side of the frame (1), and a tool mechanism (5) is slidably mounted on the inner wall of the frame (1), and an output end of the first cylinder (6) is fixedly connected to the tool mechanism (5); A moving mechanism (2), the moving mechanism (2) being fixedly mounted on the top of the frame (1), and the moving mechanism (2) being located below the tool mechanism (5), a support plate (7) being fixedly mounted on the top of the moving mechanism (2), and a slide plate (3) being fixedly mounted on the top of the support plate (7); A clamping mechanism (4), the clamping mechanism (4) being mounted on the top of the slide plate (3), and the clamping mechanism (4) being mounted symmetrically along the center position of the axis of the slide plate (3); There is a gap between the support plate (7) and the slide plate (3), and a second cylinder (8) is fixedly installed at the gap between the support plate (7) and the slide plate (3), the top of the slide plate (3) is symmetrically provided with slide grooves, the clamping mechanism (4) is slidably installed at the slide groove of the slide plate (3), the output end of the second cylinder (8) is fixedly connected with a connecting plate (9), the bottom of the opposite surface of the clamping mechanism (4) is fixedly installed with a baffle (12), the bottom of the baffle (12) is slidably adapted to the top of the slide plate (3), one of the baffles (12) is provided with a slot at the top, and the other baffle (12) is provided with a block at the top, and connecting blocks (10) are fixedly installed on both sides of the top of the baffle (12), and a support rod (11) is fixedly installed on the top of the connecting block (10), and the top of the support rod (11) is an arc surface.

3. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 2, characterized in that: The clamping mechanism (4) comprises a sliding beam (41), the sliding beam (41) being slidably mounted on the sliding groove of the sliding groove plate (3), the bottom of the sliding beam (41) being fixedly connected to the top of the connecting plate (9), and the opposite surface of the sliding beam (41) being fixedly connected to one end of the baffle plate (12).

4. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 3, characterized in that: Side clamping blocks (44) are fixedly mounted on both sides of the opposite surfaces of the slide beam (41); the side clamping blocks (44) are located above the baffle plate (12); and the side of the side clamping blocks (44) away from the slide beam (41) is an inclined surface; frame grooves are provided on the opposite surfaces of the side clamping blocks (44); and inner slide plates (45) are slidably mounted between the side clamping blocks (44); and the two ends of the inner slide plates (45) are slidably fitted in the frame grooves of the side clamping blocks (44).

5. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 4, characterized in that: An elastic gasket (42) is fixedly mounted between the inner slide plate (45) and the slide beam (41), and a clamping plate (43) is fixedly mounted on a side of the inner slide plate (45) away from the slide beam (41), wherein the bottom of the clamping plate (43) is in the same horizontal plane as the top of the support rod (11).

6. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 5, characterized in that: The moving mechanism (2) comprises a support frame (21), the support frame (21) being fixedly mounted on the top of the frame (1), and a threaded rod (28) being rotatably mounted on the inner wall of the support frame (21), a first motor (22) being fixedly mounted on the outer side of the support frame (21), an output end of the first motor (22) being fixedly connected to one end of the threaded rod (28), a top plate (23) being slidably mounted on the top of the support frame (21), a threaded sleeve (27) being fixedly mounted on the bottom of the top plate (23), and an inner wall of the threaded sleeve (27) being threadably connected to the outer side of the threaded rod (28).

7. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 6, characterized in that: Guide rails are provided on both sides of the top of the top plate (23), and a slide block (26) is slidably mounted on the top of the guide rails of the top plate (23). A third cylinder (24) is fixedly mounted on the top of the top plate (23), and an inner slide beam (25) is fixedly mounted on the output end of the third cylinder (24). The top of the inner slide beam (25) and the slide block (26) are both fixedly connected to the bottom of the support plate (7).

8. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 7, characterized in that: The tool mechanism (5) comprises a fixed plate (51), the fixed plate (51) being fixedly fitted with the inner wall of the frame (1), the output end of the first cylinder (6) being fixedly connected to the outer side of the fixed plate (51), a second motor (52) being fixedly mounted on the top of the fixed plate (51), and the output end of the second motor (52) passing through the fixed plate (51) and extending to the bottom thereof.

9. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 8, characterized in that: A transmission shaft (53) is fixedly mounted on the output end of the second motor (52); a tool barrel (54) is fixedly connected to the bottom end of the transmission shaft (53); an inner clamping block (56) is slidably mounted on the inner wall of the tool barrel (54); the bottom of the outer side of the inner clamping block (56) is a conical surface whose outer diameter gradually decreases from top to bottom; a screw barrel (57) is threadedly connected to the inner wall of the tool barrel (54); and the top of the inner wall of the screw barrel (57) is a conical surface whose outer diameter gradually decreases from top to bottom.

10. A processing method for improving the heat dissipation effect of engine turbine guide blades according to claim 9, characterized in that: A cutter (55) is fixedly mounted between the inner clamping blocks (56); a ring groove is formed at the bottom of the inner wall of the screw barrel (57); a rubber gasket (58) is fixedly mounted at the ring groove of the screw barrel (57); an inner top block (59) is slidably mounted at the ring groove of the screw barrel (57); the inner top block (59) is located on the inner side of the rubber gasket (58); and the ends of the inner top blocks (59) that are close to each other are in contact with the outer side of the cutter (55).

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