A high-pressure turbine blade positioning and inner cavity polishing device

Abstract

The present invention discloses a high-pressure turbine blade positioning and inner cavity polishing device, which belongs to the technical field of high-pressure turbine blade processing, and comprises a mounting portion, wherein a plurality of upper guide cavities and lower guide cavities for mounting high-pressure turbine blades are evenly penetrated in the mounting portion, and a blade body guide cavity is opened at the position of the blade body of the high-pressure turbine blade on the side wall of the upper guide cavity; an upper guide plate is arranged on the top surface of the mounting portion, and a plurality of blade body guide holes for communicating with the blade body guide cavity and a plurality of blade crown guide holes for communicating with the upper guide cavity are opened on the upper guide plate. The present invention can realize bidirectional polishing of the inner cavity of the high-pressure turbine blade after one clamping, thereby improving the polishing efficiency. Two inner cavity channels can be independently polished by one set of tooling, thereby avoiding the use of multiple sets of tooling to realize the polishing of different inner cavity channels. Moreover, the present invention can simultaneously position and polish multiple high-pressure turbine blades at one time, and can also adapt to high-pressure turbine blades of different sizes.

Description

Technical Field

[0001] The invention belongs to the technical field of high-pressure turbine blade processing, and in particular relates to a high-pressure turbine blade positioning and inner cavity polishing device. Background Art

[0002] The inner cavity of the high-pressure turbine blade serves as a flow channel for cooling gas, which plays a key role in reducing the operating temperature of the blade. By enhancing the heat exchange effect, the cooling air can promptly remove the heat absorbed by the blade, thereby increasing the temperature of the gas before the turbine and significantly improving the efficiency and thrust of the gas turbine. The importance of its internal structure to the cooling effect and performance of the blade is self-evident.

[0003] The inner cavity of high-pressure turbine blades is usually obtained by the core-removing process of investment casting. However, the inner cavity produced by this technology has problems such as core-removing residue and rough inner surface. To solve these problems, abrasive flow polishing or water jet polishing technology can be used to polish the inner cavity to improve the smoothness of the inner flow channel surface, reduce the remelting layer, and effectively extend the service life of the blade.

[0004] The internal cavity structure of high-pressure turbine blades is extremely complex, with multiple air inlet and outlet forms, such as air inlet at the bottom of the blade tenon, air inlet at the transition section of the tenon, air outlet at the blade body, and air outlet at the top of the blade crown. The conventional polishing method is to fix a single turbine blade on an abrasive flow polishing device or a water jet polishing device for one-way polishing. This process requires multiple sets of tooling and multiple clamping. Not only is the polishing efficiency low, but the polishing effects for blades of different sizes vary greatly. As the design of the internal cavity of high-pressure turbine blades becomes increasingly complex, the efficiency and effect of conventional polishing methods are getting worse and worse.

[0005] To this end, a high-pressure turbine blade positioning and inner cavity polishing device is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a high-pressure turbine blade positioning and inner cavity polishing device to realize two-way polishing of multiple high-pressure turbine blades at a time, thereby improving the polishing efficiency of the inner cavity of the high-pressure turbine blades and bringing significant changes to the production and manufacturing of high-pressure turbine blades.

[0007] To achieve the above object, the present invention provides a high-pressure turbine blade positioning and inner cavity polishing device, comprising:

[0008] The mounting portion comprises a lower guide column and an upper guide column, wherein a plurality of lower guide cavities are provided in the lower guide column, wherein the blade root of the high-pressure turbine blade is installed in the lower guide cavity, and the edge plate of the high-pressure turbine blade abuts against the top surface of the lower guide column; a plurality of upper guide cavities are provided on the upper guide column, wherein the blade body and blade crown of the high-pressure turbine blade are installed in the upper guide cavity, and a blade body guide cavity is provided on the side wall of the upper guide cavity corresponding to the position of the blade body of the high-pressure turbine blade;

[0009] An upper guide plate is arranged on the top surface of the upper guide column, and is provided with a plurality of blade guide holes for communicating with the blade guide cavity and a plurality of blade crown guide holes for communicating with the upper guide cavity.

[0010] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, the blade body guide hole and the blade crown guide hole are not on the same diameter of the upper guide plate, and there is an angle difference, so that when the blade body guide hole is connected with the blade body guide cavity correspondingly, the top surface of the upper guide cavity is closed, and when the top of the upper guide cavity is connected with the blade crown guide hole correspondingly, the top surface of the blade body guide cavity is closed.

[0011] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, an upper slide groove is provided on the top edge of the upper guide column, and a lower slide ring protrudes from the upper guide plate corresponding to the upper slide groove.

[0012] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, a blade crown sealing gasket is fixedly connected in the upper guide cavity, the blade crown sealing gasket abuts against the edge of the blade crown of the high-pressure turbine blade, and the blade crown sealing gasket has a central opening to connect the flow channel opening on the blade crown of the high-pressure turbine blade with the top of the upper guide cavity.

[0013] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, a pressure plate is arranged between the upper guide column and the lower guide column, the blade body and the blade crown of the high-pressure turbine blade pass through the pressure plate, the pressure plate abuts against the outer side of the edge plate of the high-pressure turbine blade, and an edge plate sealing gasket abuts between the edge plate of the high-pressure turbine blade and the top surface of the lower guide column.

[0014] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, a plurality of positioning columns are arranged through the pressure plate, the top end of the positioning column is slidably connected to the bottom end of the upper guide column, and the bottom end of the positioning column is slidably connected to the top end of the lower guide column.

[0015] A high-pressure turbine blade positioning and inner cavity polishing device provided according to the present invention also includes a lower guide plate, and a lower guide hole communicating with the lower guide cavity is formed on the lower guide plate.

[0016] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, a lower sliding groove is provided on the bottom edge of the lower guide column, and an upper sliding ring is protruded from the top edge of the lower guide plate corresponding to the lower sliding groove.

[0017] According to a high-pressure turbine blade positioning and inner cavity polishing device provided by the present invention, the upper guide plate, the lower guide plate, the upper guide column and the lower guide column are all made of plastic.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] 1. The upper guide cavity and the lower guide cavity of the present invention are interconnected, and the abrasive can reciprocate in the upper guide cavity and the lower guide cavity through the upper and lower conveying cylinders of the polishing system, thereby realizing two-way polishing of the inner cavity of the high-pressure turbine blade after one clamping. Compared with the one-way polishing of traditional tooling that cannot recycle abrasives, the present invention can significantly save time.

[0020] 2. The present invention can also adjust the corresponding relationship between the blade guide holes, the blade crown guide holes on the upper guide plate and the top openings of the upper guide cavity and the top openings of the blade guide cavity, so that when the blade guide holes are correspondingly connected with the blade guide cavity, the top surface of the upper guide cavity is closed, and when the top of the upper guide cavity is correspondingly connected with the blade crown guide holes, the top surface of the blade guide cavity is closed, thereby conveniently using a set of tooling to achieve single channel polishing of the inner cavity channel of the blade root-blade body-blade crown or the inner cavity channel of the blade root-blade body-blade body side, avoiding the use of multiple sets of tooling to achieve polishing of different inner cavity channels, being simple and easy to operate, and greatly improving the polishing efficiency.

[0021] 3. The number, size and length of the upper guide cavity, lower guide cavity and blade guide cavity of the present invention can be adjusted according to the size and process of the high-pressure turbine blades, so that the device can position and polish multiple high-pressure turbine blades at the same time, and can also adapt to high-pressure turbine blades of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the high-pressure turbine blade positioning and inner cavity polishing device of the present invention.

[0024] In the figure: 1. high-pressure turbine blade; 10. upper guide plate; 11. blade crown guide hole; 12. blade body guide hole; 13. lower sliding ring; 20. upper guide column; 21. upper guide cavity; 22. blade body guide cavity; 23. blade crown sealing gasket; 24. upper slide groove; 30. pressure plate; 31. positioning column; 32. edge plate sealing gasket; 40. lower guide column; 41. lower guide cavity; 42. lower slide groove; 50. lower guide plate; 51. lower guide hole; 52. upper sliding ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figure 1 As shown, this embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, comprising:

[0028] The mounting portion includes a lower guide column 40 and an upper guide column 20. A plurality of lower guide cavities 41 are provided in the lower guide column 40. The blade root of the high-pressure turbine blade 1 is installed in the lower guide cavity 41. The edge plate of the high-pressure turbine blade 1 abuts against the top surface of the lower guide column 40. A plurality of upper guide cavities 21 are provided on the upper guide column 20. The blade body and blade crown of the high-pressure turbine blade 1 are installed in the upper guide cavity 21. A blade body guide cavity 22 is provided on the side wall of the upper guide cavity 21 at a position corresponding to the blade body of the high-pressure turbine blade 1.

[0029] The upper guide plate 10 is disposed on the top surface of the upper guide column 20 . The upper guide plate 10 is provided with a plurality of blade guide holes 12 for communicating with the blade guide cavity 22 and a plurality of blade crown guide holes 11 for communicating with the upper guide cavity 21 .

[0030] The entire installation part is composed of an upper guide column 20 and a lower guide column 40. After opening, it is convenient to place the high-pressure turbine blade 1 into the upper guide cavity 21 and the lower guide cavity 41. The lower guide cavity 41 of the lower guide column 40 provides a special installation position for the blade root of the high-pressure turbine blade 1, and the upper guide cavity 21 of the upper guide column 20 accommodates the blade body and the blade crown. The cavity formed by the upper guide cavity 21 and the lower guide cavity 41 ensures the precise installation and stable positioning of the blade in the device. This can effectively prevent the blade from offsetting or shaking during the polishing process, ensure the accuracy and consistency of the polishing operation, and thus improve the polishing effect. In addition, the structural design of the lower guide cavity 41 and the upper guide cavity 21 helps to guide the abrasive from the lower guide column 40 into the inner cavity entrance at the bottom of the blade, smoothly enter the corresponding guide hole after polishing, and finally enter the clamping cylinder for abrasive transportation, ensuring the smoothness and orderliness of the abrasive flow, thereby improving the polishing efficiency.

[0031] The entire device of the present application needs to be installed in an abrasive flow polishing system or a water jet polishing system for use. The upper guide chamber 21 and the lower guide chamber 41 are connected vertically, and the abrasive can reciprocate in the upper guide chamber 21 and the lower guide chamber 41 through the upper and lower conveying cylinders of the polishing system, thereby realizing two-way polishing of the inner cavity of the high-pressure turbine blade 1 after one clamping. Compared with the one-way polishing of traditional tooling that cannot recycle abrasives, the present invention can significantly save time.

[0032] The present invention can also adjust the correspondence between the blade guide holes 12 and the blade crown guide holes 11 on the upper guide plate 10 and the top openings of the upper guide cavity 21 and the top openings of the blade guide cavity 22, so that when the blade guide holes 12 and the blade guide cavity 22 are correspondingly connected, the top surface of the upper guide cavity 21 is closed, and when the top of the upper guide cavity 21 is correspondingly connected with the blade crown guide holes 11, the top surface of the blade guide cavity 22 is closed, thereby conveniently using a set of tooling to achieve single channel polishing of the inner cavity channel of the blade root-blade body-blade crown or the inner cavity channel of the blade root-blade body-blade body side, avoiding the use of multiple sets of tooling to achieve polishing of different inner cavity channels, being simple and easy to operate, and greatly improving the polishing efficiency.

[0033] Furthermore, the number, size and length of the upper guide cavity 21, the lower guide cavity 41 and the blade body guide cavity 22 can be adjusted according to the size and process of the blade, so that the device can position and polish multiple blades at the same time and can also adapt to blades of different sizes.

[0034] The present embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, in which the blade body guide hole 12 and the blade crown guide hole 11 are not on the same diameter of the upper guide plate 10, and there is an angle difference, so that when the blade body guide hole 12 is correspondingly connected with the blade body guide cavity 22, the top surface of the upper guide cavity 21 is closed, and when the top of the upper guide cavity 21 is correspondingly connected with the blade crown guide hole 11, the top surface of the blade body guide cavity 22 is closed.

[0035] There is a certain angle difference between the blade crown guide hole 11 and the blade body guide hole 12, and the two are not on the same diameter. The rotation angle can be used to ensure that only one of the blade crown guide hole 11 or the blade body guide hole 12 remains unobstructed and the other remains closed, thereby conveniently realizing the conversion of the inner cavity channel polishing of the blade root-blade body-blade crown or the inner cavity channel polishing of the blade root-blade body-blade body side.

[0036] This embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device. An upper slide groove 24 is provided on the top edge of the upper guide column 20 , and a lower slide ring 13 protrudes from the upper guide plate 10 corresponding to the upper slide groove 24 .

[0037] The upper slide groove 24 cooperates with the lower slide ring 13. On the one hand, the upper guide plate 10 can be tightly connected with the upper guide column 20. During the operation of the device, especially when subjected to external forces such as abrasive flow impact and equipment vibration during polishing, the upper guide plate 10 can be effectively prevented from being displaced or shaken relative to the upper guide column 20. The structural integrity and stability of the entire device are ensured, and a stable mechanical structure foundation is provided for the precise polishing of the high-pressure turbine blades 1, so as to avoid the polishing accuracy and effect being affected by loose components. On the other hand, it helps to maintain the relative position relationship between the blade crown guide hole 11 and the blade body guide hole 12 of the upper guide plate 10 and the upper guide cavity 21 and the blade body guide cavity 22 of the upper guide column 20. During the installation and adjustment process, the concentricity of these guide holes is ensured so that the abrasive can flow smoothly in the device according to the predetermined path, and efficient polishing of the inner cavity of the blade is achieved. If the concentricity deviation of the guide hole is caused by poor fit, it may cause problems such as obstruction of abrasive flow and leakage, reduce polishing efficiency, and even damage the device or blade.

[0038] The present embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, in which a blade crown sealing gasket 23 is fixedly connected to the upper guide cavity 21, and the blade crown sealing gasket 23 abuts against the edge of the blade crown of the high-pressure turbine blade 1. The blade crown sealing gasket 23 has a center opening, so that the flow channel opening on the blade crown of the high-pressure turbine blade 1 is connected to the top of the upper guide cavity 21.

[0039] During the assembly of the device, the blade crown sealing gasket 23 fixes the blade crown of the high-pressure turbine blade 1 in the upper guide column 20, which ensures the stability of the blade position in the device and prevents the blade from being displaced during the polishing operation, thereby ensuring the accuracy and effect of polishing. After the polishing system is started, when the upper clamping cylinder descends to press the entire device, the blade crown sealing gasket 23 just seals the blade crown part of the high-pressure turbine blade 1. This prevents the abrasive from leaking from the blade crown when it enters the blade inner cavity through the lower guide cavity 41, enters the blade crown after polishing, and then enters the upper guide cavity 21 and the blade crown guide hole 11 to enter the abrasive upper conveying cylinder. The sealing of the abrasive flow is guaranteed, so that the polishing process can proceed smoothly, and the polishing efficiency and quality are improved.

[0040] The present embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, wherein a pressure plate 30 is arranged between the upper guide column 20 and the lower guide column 40, and the blade body and blade crown of the high-pressure turbine blade 1 pass through the pressure plate 30, and the pressure plate 30 abuts against the outer side of the edge plate of the high-pressure turbine blade 1, and an edge plate sealing gasket 32 ​​abuts between the edge plate of the high-pressure turbine blade 1 and the top surface of the lower guide column 40.

[0041] The pressure plate 30 can firmly fix the edge plate sealing gasket 32. During the installation of the device, the edge plate sealing gasket 32 ​​plays a key role in sealing the transition section and the root part of the blade. The pressure plate 30 ensures that its position is stable to prevent the edge plate sealing gasket 32 ​​from shifting during the polishing operation, thereby ensuring the reliability of the sealing effect, avoiding abrasive leakage, and allowing the polishing process to proceed smoothly.

[0042] Furthermore, the leaf crown sealing gasket 23 and the edge plate sealing gasket 32 ​​are preferably made of soft sealing materials such as silicone.

[0043] This embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, wherein a plurality of positioning columns 31 are provided through the pressure plate 30, the top end of the positioning column 31 is slidably connected to the bottom of the upper guide column 20, and the bottom end of the positioning column 31 is slidably connected to the top of the lower guide column 40.

[0044] The pressing plate 30 cooperates with the positioning column 31 to fix the relative positions of the lower guide column 40, the pressing plate 30 and the upper guide column 20. During the installation and use of the device, the relative positions of these components are prevented from being offset, the stability of the entire device structure is ensured, and the high-pressure turbine blade 1 is accurately positioned in the device, providing a guarantee for achieving a high-precision polishing effect.

[0045] The present embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, which also includes a lower guide plate 50 , on which a lower guide hole 51 communicating with the lower guide cavity 41 is formed.

[0046] The lower guide plate 50 provides a stable installation foundation for the lower guide column 40. The lower guide holes 51 evenly distributed on the lower guide plate 50 are important channels for the abrasive to enter the device. The abrasive flows into the lower guide cavity 41 of the lower guide column 40 through these lower guide holes 51, and then enters the inner cavity entrance at the bottom of the high-pressure turbine blade 1 to start the polishing process. Its reasonable hole distribution design ensures that the abrasive can enter the inner cavity of multiple blades evenly and smoothly, which plays an indispensable role in improving polishing efficiency and quality.

[0047] This embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, wherein a lower guide column 40 has a bottom edge with a lower sliding groove 42 , and a top edge of a lower guide plate 50 has an upper sliding ring 52 protruding from the top edge corresponding to the lower sliding groove 42 .

[0048] The lower sliding groove 42 and the upper sliding ring 52 cooperate with each other to ensure that the lower guide column 40 is installed accurately and firmly, and prevent the blade positioning and polishing effect from being affected by the displacement of the lower guide column 40 during the polishing process.

[0049] The present embodiment provides a high-pressure turbine blade positioning and inner cavity polishing device, wherein the upper guide plate 10, the lower guide plate 50, the upper guide column 20, and the lower guide column 40 are all made of plastic.

[0050] Nylon material is preferred, which can not only meet the structural and functional requirements of the device, reduce the overall weight of the device, but also reduce processing costs and difficulty.

[0051] Specific working process:

[0052] In specific implementation, the lower guide column 40 is placed in the lower guide plate 50, and the upper sliding ring 52 on the edge of the lower guide plate 50 is exactly matched with the lower groove 42 of the lower guide column 40. Each high-pressure turbine blade 1 is placed in the lower guide cavity 41 of the lower guide column 40, and then the edge plate gasket 32, the positioning column 31 and the pressure plate 30 are placed in sequence to fix the high-pressure turbine blade 1 in the lower guide column 40. The edge plate gasket 32 ​​seals the blade transition section and the blade root part in the lower guide cavity 41. The pressure plate 30 fixes the edge plate gasket 32, and the positioning column 31 fixes the relative positions between the lower guide column 40, the pressure plate 30 and the upper guide column 20 to prevent the relative positions between them from being offset during installation and use. Then put in the upper guide column 20, and fix the blade crown of the high-pressure turbine blade 1 in the upper guide column 20 with the blade crown sealing gasket 23, and then place the upper guide plate 10 on the upper guide column 20, and the lower sliding ring 13 on the edge of the upper guide plate 10 fits perfectly with the upper sliding groove 24 on the edge of the upper guide column 20.

[0053] The assembled device with the high-pressure turbine blade 1 is installed in an abrasive flow polishing system or a water jet polishing system. The device is concentric with the upper and lower clamping cylinders of the polishing system, the lower guide hole 51 is concentric with the outflow hole at the bottom of the lower guide cavity 41, and the upper guide plate 10 is adjusted so that the blade crown guide hole 11 is concentric with the upper guide cavity 21. Since there is an angle difference between the blade body guide hole 12 and the blade crown guide hole 11, the blade body guide hole 12 is just covered by the upper guide plate 10 at this time. Start the polishing system, the upper clamping cylinder descends to clamp the whole device, at this time, the blade crown sealing gasket 23 and the edge plate sealing gasket 32 ​​just seal the blade crown part and the edge plate part of the high-pressure turbine blade 1, open the lower abrasive delivery cylinder, the abrasive will enter through the lower guide hole 51, enter the inner cavity entrance at the bottom of the high-pressure turbine blade 1 through the lower guide cavity 41, flow in the inner cavity and polish the inside before entering the blade crown, and then enter the upper guide cavity 21 and the blade crown guide hole 11 to enter the abrasive upper delivery cylinder. At this time, since the blade body guide hole 12 is blocked by the upper guide plate 10, the abrasive will not flow out through the outlet of the blade body guide hole 12. After all the abrasive enters the abrasive upper delivery cylinder, operate the polishing system, transport the abrasive from the upper delivery cylinder to the lower delivery cylinder, and polish the inner cavity in the reverse direction through the above-mentioned channel. With this reciprocating motion, the inner cavity channel of the blade root-blade body-blade crown can be polished in both directions.

[0054] After the polishing of the inner cavity channel of the blade root-blade body-blade crown is completed, the clamping cylinder is loosened, and the upper guide plate 10 is rotated to a certain angle to ensure that the blade body guide hole 12 and the blade body guide cavity 22 are concentric. At this time, the blade crown guide hole 11 is just blocked by the upper guide plate 10. Start the polishing system, the upper clamping cylinder descends and presses the entire device. At this time, the blade crown sealing gasket 23 and the edge plate sealing gasket 32 ​​just seal the blade crown part and the edge plate part of the high-pressure turbine blade 1. The lower abrasive delivery cylinder is opened, and the abrasive will enter through the lower guide hole 51, enter the inner cavity inlet at the bottom of the high-pressure turbine blade 1 through the blade root guide cavity, flow in the inner cavity and polish the inside before entering the blade body side outlet, and then enter the blade body guide cavity 22 and the blade body guide hole 12 to enter the upper abrasive delivery cylinder. At this time, since the blade crown guide hole 11 is blocked by the upper guide plate 10, the abrasive will not flow out through the outlet of the blade crown guide hole 11. After all the abrasives have entered the upper abrasive delivery cylinder, the polishing system is operated to deliver the abrasives downward through the upper delivery cylinder, and the inner cavity is polished in the reverse direction through the above-mentioned channel. With this reciprocating motion, the inner cavity channel of the blade root-blade body-blade body side can be polished in two directions.

[0055] After polishing is completed, the high-pressure turbine blades 1 are taken out of the device and placed into the next group of high-pressure turbine blades 1 for processing.

[0056] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0057] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A high-pressure turbine blade positioning and inner cavity polishing device, characterized in that: include: The mounting portion comprises a lower guide column (40) and an upper guide column (20), wherein a plurality of lower guide cavities (41) are provided in the lower guide column (40), the blade root of the high-pressure turbine blade (1) is installed in the lower guide cavity (41), and the edge plate of the high-pressure turbine blade (1) abuts against the top surface of the lower guide column (40); a plurality of upper guide cavities (21) are provided on the upper guide column (20), the blade body and blade crown of the high-pressure turbine blade (1) are installed in the upper guide cavity (21), and a blade body guide cavity (22) is provided on the side wall of the upper guide cavity (21) at a position corresponding to the blade body of the high-pressure turbine blade (1); An upper guide plate (10) is arranged on the top surface of the upper guide column (20), and the upper guide plate (10) is provided with a plurality of blade guide holes (12) for communicating with the blade guide cavity (22) and a plurality of blade crown guide holes (11) for communicating with the upper guide cavity (21).

2. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 1, characterized in that: The blade guide holes (12) and the blade crown guide holes (11) are not on the same diameter of the upper guide plate (10), and there is an angle difference, so that when the blade guide holes (12) are correspondingly connected to the blade guide cavity (22), the top surface of the upper guide cavity (21) is closed, and when the top of the upper guide cavity (21) is correspondingly connected to the blade crown guide holes (11), the top surface of the blade guide cavity (22) is closed.

3. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 1, characterized in that: An upper slide groove (24) is provided on the top edge of the upper guide column (20), and a lower slide ring (13) protrudes from the upper guide plate (10) corresponding to the upper slide groove (24).

4. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 1, characterized in that: A blade crown sealing gasket (23) is fixedly connected in the upper guide cavity (21), the blade crown sealing gasket (23) abuts against the edge of the blade crown of the high-pressure turbine blade (1), and the blade crown sealing gasket (23) has a central opening so that the flow channel opening on the blade crown of the high-pressure turbine blade (1) is connected to the top of the upper guide cavity (21).

5. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 1, characterized in that: A pressure plate (30) is provided between the upper guide column (20) and the lower guide column (40); the blade body and the blade crown of the high-pressure turbine blade (1) pass through the pressure plate (30); the pressure plate (30) abuts against the outer side of the edge plate of the high-pressure turbine blade (1); and an edge plate sealing gasket (32) abuts between the edge plate of the high-pressure turbine blade (1) and the top surface of the lower guide column (40).

6. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 5, characterized in that: A plurality of positioning columns (31) are provided through the pressure plate (30), the top ends of the positioning columns (31) are slidably connected to the bottom ends of the upper flow guide columns (20), and the bottom ends of the positioning columns (31) are slidably connected to the top ends of the lower flow guide columns (40).

7. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 1, characterized in that: It also comprises a lower guide plate (50), on which a lower guide hole (51) communicating with the lower guide cavity (41) is provided.

8. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 7, characterized in that: The bottom edge of the lower guide column (40) is provided with a lower sliding groove (42), and the top edge of the lower guide plate (50) is provided with an upper sliding ring (52) protruding corresponding to the lower sliding groove (42).

9. The high-pressure turbine blade positioning and inner cavity polishing device according to claim 7, characterized in that: The upper guide plate (10), the lower guide plate (50), the upper guide column (20), and the lower guide column (40) are all made of plastic.

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