Gas turbine blade grinding device

Abstract

The invention relates to the technical field of gas turbine blade machining, in particular to a gas turbine blade grinding device which comprises a workbench and a grinding mechanism, and the workbench is provided with a tenon tooth clamping assembly, a blade body clamping assembly and a blade crown clamping assembly. The tenon tooth clamping assembly, the blade body clamping assembly and the blade crown clamping assembly are arranged side by side, and each of the tenon tooth clamping assembly, the blade body clamping assembly and the blade crown clamping assembly comprises a supporting panel arranged on the workbench and two clamping pieces which are oppositely and movably arranged on the supporting panel; an adjusting mechanism; an airflow generation assembly; and two displacement assemblies. By means of the clamping device, clamping of the tenon tooth part, the blade body part and the blade crown part of the gas turbine blade can be achieved, the stability of blade tenon tooth grinding machining is guaranteed, the machining quality of blade tenon tooth machining is further guaranteed, and the stable clamping requirement of gas turbine blades of multiple specifications is met; and by means of the airflow generating assembly installed at the tenon tooth clamping assembly, the air blowing function and the suction function can be achieved at the same time through one pipe, and operation is easy.

Description

Technical Field

[0001] This invention relates to the field of gas turbine blade processing technology, and in particular to a gas turbine blade grinding device. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] As a core power source, the manufacturing precision of the blades in a gas turbine directly determines the efficiency, lifespan, and reliability of the entire machine. The blades, especially their critical tenon teeth, require high-precision grinding to ensure a seamless fit with the turbine disk.

[0004] Gas turbine blades have complex shapes, typically comprising multiple irregularly shaped parts such as tenons, blade body, and blade crown. Existing clamping techniques often struggle to effectively and securely position and clamp these three critical parts simultaneously. Especially when grinding the tenons, which are subject to significant stress, unstable clamping can easily lead to minute displacements or vibrations (i.e., "tool deflection") during machining. This machining vibration directly results in out-of-tolerance tenon profile accuracy, decreased surface quality, failure to meet high assembly standards, and even scrapping of the workpiece. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a gas turbine blade grinding device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a gas turbine blade grinding device, comprising a workbench for fixing and supporting the blade and a grinding mechanism disposed on one side of the workbench for grinding the tenon teeth. The workbench is respectively provided with a tenon tooth clamping assembly, a blade body clamping assembly and a blade crown clamping assembly. The tenon tooth clamping assembly, the blade body clamping assembly and the blade crown clamping assembly are arranged side by side and each includes a support plate disposed on the workbench and two clamping parts disposed opposite to and movable on the support plate. An adjustment mechanism is provided on the bottom surface of the support panel for adjusting the distance between the two clamping members accordingly; An airflow generating component, located at the installation position of the tenon clamping component, is used to first blow away the adhering debris at the tenon structure of the blade, and then draw in the loose debris under negative pressure. Two displacement components are disposed on the workbench and connected to the blade clamping component and the blade crown clamping component respectively, for adjusting the fixed positions of the blade clamping component and the blade crown clamping component on the horizontal plane where the workbench is located.

[0007] Furthermore, the adjustment mechanism includes two movable blocks that slide on the support panel and are rotatably connected to the clamping member, a bidirectional screw that is adapted to pass through the two movable blocks and is horizontally arranged on the lower side of the support panel, and a drive motor that works in conjunction with the bidirectional screw is provided at one end of the bidirectional screw.

[0008] Furthermore, each of the support panels is provided with a rotating shaft on both sides of the clamping member, and a clamping block is rotatably provided on the rotating shaft for adjusting and pressing to prevent the clamping member from rotating.

[0009] Furthermore, the clamping components respectively employ tenon clamping blocks, blade clamping blocks, and blade crown clamping blocks for the tenon clamping assembly, the blade clamping assembly, and the blade crown clamping assembly; The airflow generating assembly includes an inner cylinder disposed between the two tenon-tooth clamping blocks and correspondingly located on the lower side of the support panel, and a compressed air pipe disposed at the bottom of the inner cylinder and connected to an external air source for outputting airflow. The upper opening of the inner cylinder faces the area between the two tenon-tooth clamping blocks.

[0010] Furthermore, the inner cylinder adopts a tapered-expanding section structure, and a suction port is provided at the throat of the inner cylinder; The airflow generating assembly also includes an outer cover coaxially disposed outside the inner cylinder and having a jacket space. The lower end of the outer cover is provided with a movable cover that rotates relative to it via an annular guide rail. Inside the movable cover, there is an arc block for opening and closing the suction port via a connecting rod. The top two sides of the jacket space are provided with corresponding air intake ducts connected to the bottom surfaces of the tenon-tooth clamping blocks that are respectively separated on both sides. The tenon-tooth clamping blocks are provided with a suction cavity communicating with the air intake duct in the vertical direction. The clamping end of the tenon-tooth clamping blocks is provided with multiple parallel and spaced slots, and the inner end of each slot is communicating with the suction cavity.

[0011] Furthermore, the exterior of the movable cover is provided with a transmission assembly that cooperates with the movable blocks distributed opposite to each other on both sides; The transmission assembly includes a toothed ring coaxially mounted on the outside of the movable cover, and a rack mounted on the toothed ring and correspondingly connected to the movable block. As the two movable blocks move toward each other, the engagement of the rack and the toothed ring will cause the movable cover to rotate, and cause an arc block welded to the connecting rod inside the movable cover to rotate and close at the suction port. The compressed air pipe will output airflow through the upper opening of the inner cylinder to blow away the adhering debris. As the two movable blocks move apart, the engagement of the rack and the toothed ring drives the movable cover to rotate, causing the arc block welded to the connecting rod inside the movable cover to rotate and open the suction port. The main airflow is output through the compressed air pipe through the upper opening of the inner cylinder, and the strong negative pressure generated at the throat of the inner cylinder will suck in the debris near the clamping end of the tenon clamping block through the suction port, and eject it from the opening along with the main airflow.

[0012] Furthermore, the displacement assembly includes a base plate disposed at the blade clamping block and located below the corresponding support panel, an X-axis guide plate that moves relative to the lower surface of the base plate along the length direction of the base plate, and a Y-axis guide plate that moves relative to the lower surface of the X-axis guide plate along the width direction of the base plate. The Y-axis guide plate is fixed on the workbench, and both ends of the base plate are fixedly connected to the side of the support panel.

[0013] Furthermore, a displacement component with the same structure is provided at the crown clamp and on the lower side of the support panel.

[0014] Furthermore, the blade clamping block and the crown clamping block are provided with through holes on the two support panels, and fastening screws for preventing the support panels from moving are provided at the through holes. There are two through holes, which are symmetrically arranged at both ends of the support panels.

[0015] The beneficial effects of this invention are reflected in: This invention, through the combined action of the adjustment mechanism and the displacement component, enables the clamping of the tenon, blade body, and blade crown of a gas turbine blade, ensuring the stability of the blade tenon grinding process and further guaranteeing the processing quality of the blade tenon, thus meeting the stable clamping requirements of gas turbine blades of various specifications. Furthermore, through the airflow generating component installed at the tenon clamping component, both blowing and suction functions can be achieved using a single pipe, making operation simple. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of an embodiment of the present invention. Figure 2 This is a three-dimensional structural diagram of an embodiment of the present invention from another perspective; Figure 3 An exploded perspective three-dimensional structural view of the structure correspondingly installed at the tenon clamping block according to an embodiment of the present invention; Figure 4 This is a perspective view of the structure corresponding to the tenon clamping block in an embodiment of the present invention. Figure 5 This is a side sectional view of the structure correspondingly installed at the tenon clamping block according to an embodiment of the present invention; Figure 6 This is a view of the movable cover and the inner cylinder connected by an arc block in one embodiment of the present invention.

[0017] In the picture: 1. Workbench; 2. Support panel; 3. Adjustment mechanism; 31. Movable block; 32. Bidirectional screw; 4. Airflow generating assembly; 41. Inner cylinder; 411. Suction port; 42. Compressed air pipe; 43. Outer cover; 44. Movable cover; 45. Arc block; 46. Air inlet duct; 47. Groove; 5. Displacement assembly; 51. Base plate; 52. X-axis guide plate; 53. Y-axis guide plate; 6. Clamping block; 7. Gear ring; 71. Gear rack; 8. Fastening screw. Detailed Implementation

[0018] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0019] Please see Figure 1-6 This invention discloses a grinding device for processing gas turbine blades, including a workbench 1 for fixing and supporting the blades and a grinding mechanism disposed on one side of the workbench 1 for grinding the tenons. The workbench 1 is respectively provided with a tenon clamping assembly, a blade clamping assembly and a blade crown clamping assembly. The tenon clamping assembly, the blade clamping assembly and the blade crown clamping assembly are arranged side by side and each includes a support plate 2 disposed on the workbench 1 and two clamping parts disposed opposite to and movable on the support plate 2. Adjustment mechanism 3 is provided on the bottom surface of the support panel 2 and is used to adjust the distance between the two clamping parts accordingly; Airflow generating component 4 is located at the installation position of the tenon clamping component and is used to first blow away the adhering debris at the tenon structure of the blade, and then suck in the loose debris under negative pressure. Two displacement components 5 are disposed on the workbench 1 and connected to the blade clamping component and the blade crown clamping component respectively, for adjusting the fixed position of the blade clamping component and the blade crown clamping component on the horizontal plane where the workbench 1 is located.

[0020] In specific implementation, the tenon clamping assembly, blade clamping assembly and blade crown clamping assembly are installed side by side on the workbench 1, and two clamping parts are installed opposite to each other on the support panel 2 included on the tenon clamping assembly, blade clamping assembly and blade crown clamping assembly. Due to the adjustment mechanism 3 installed on the bottom surface of each support panel 2, the distance between the two clamping parts can be adjusted relative to each other, which is suitable for fixing gas turbine blades of various thicknesses. The airflow generating component 4, which is also installed at the tenon clamping assembly, can achieve both blowing and suction functions using a single tube, making it easy to operate. The displacement components 5 installed on the lower side of the two support panels 2 where the blade clamping assembly and the blade crown clamping assembly are located can perform two-dimensional horizontal adjustment, thereby adjusting the specific clamping position according to the deflection angle of the irregular structure on the gas turbine blade, effectively ensuring the stable clamping effect of the blade, and thus ensuring the stability of the grinding process of the blade.

[0021] It should be noted that a cover plate (not shown in the figure) will be installed on the upper side of the workbench 1 to cover the tenon clamping assembly, the blade clamping assembly and the blade crown clamping assembly. A dust collection bag (not shown in the figure) will be installed on the top surface of the corresponding tenon clamping block on the cover plate to collect debris. The grinding mechanism uses an electric motor-driven grinding roller or grinding wheel, which is currently in use, to grind the tenon teeth of the blade.

[0022] In one embodiment, the adjustment mechanism 3 includes two movable blocks 31 that slide on the support panel 2 and are rotatably connected to the clamping member, and a bidirectional screw 32 adapted to pass through the two movable blocks 31 and horizontally arranged on the lower side of the support panel 2. One end of the bidirectional screw 32 is provided with a drive motor for cooperation. With this design, by slotting a limiting groove in the support panel 2 to accommodate the linear movement of the movable blocks 31, and by horizontally passing through and slotting the bidirectional screw 32 in the movable blocks 31 to accommodate its installation, starting the drive motor drives the bidirectional screw 32 to rotate, causing the movable blocks 31 threaded on both sides of the bidirectional screw 32 to move towards or away from each other.

[0023] It should be noted that the bidirectional screw 32 has two symmetrically machined sections with opposite thread directions; The drive motor can be replaced by a handwheel welded to one end of the bidirectional screw 32 for operation, and manual operation is also possible. The bidirectional screw 32 is equipped with a limit structure for locking the adjusted position.

[0024] In one embodiment, a rotating shaft is provided on each of the support panels 2 and on both sides of the clamping member. A clamping block 6 is rotatably mounted on the rotating shaft to adjust and press the clamping member to prevent rotation. This design, by using the clamping blocks 6 mounted on both sides of the corresponding clamping member on the support panel 2 via the rotating shaft, and in conjunction with the rotational structure between the movable block 31 and the clamping member, allows the clamping blocks 6 to be shifted, causing the horizontal angle of the clamping member on the top surface of the movable block 31 to change. This effectively adjusts and presses the clamping member according to the deflection angle of the gas turbine blades, simplifying operation.

[0025] It should be noted that the outer wall of the rotating shaft is fitted with a rubber sleeve that increases damping performance on the surface that contacts the clamping block 6.

[0026] In one embodiment, the clamping component is respectively provided by a tenon clamping block, a blade clamping block, and a crown clamping block for the tenon clamping assembly, the blade clamping assembly, and the crown clamping assembly; The airflow generating assembly 4 includes an inner cylinder 41 disposed between the two tenon-tooth clamping blocks and correspondingly located on the lower side of the support panel 2, and a compressed air pipe 42 disposed at the bottom of the inner cylinder 41 and connected to an external air source for outputting airflow. The upper opening of the inner cylinder 41 faces the area between the two tenon-tooth clamping blocks. With this design, by activating the external air source device through the inner cylinder 41 installed between the tenon-tooth clamping blocks and correspondingly located on the lower side of the support panel 2, and the compressed air pipe 42 connected to the bottom of the inner cylinder 41, compressed airflow is sequentially sprayed through the compressed air pipe 42, the inner cylinder 41, and through the upper opening of the inner cylinder 41 into the clamping area between the two tenon-tooth clamping blocks, "loosening" or even "blowing away" the stuck and jammed debris, causing it to peel off.

[0027] It should be noted that the support panel 2 where the tenon clamping block is located is fixed to one end of the workbench 1 by screws or bolts. External air supply equipment includes, but is not limited to, air compressors and air tanks used for air delivery.

[0028] In one embodiment, the inner cylinder 41 adopts a tapered-expanding section structure, and the throat of the inner cylinder 41 is provided with a suction port 411; The airflow generating assembly 4 also includes an outer cover 43 coaxially disposed outside the inner cylinder 41 and having a jacket space. The lower end of the outer cover 43 is provided with a movable cover 44 that is rotatably disposed relative to it via an annular guide rail. Inside the movable cover 44, there is an arc block 45 for opening and closing the suction port 411 via a connecting rod. The top two sides of the jacket space are provided with corresponding air intake ducts 46 connected to the bottom surfaces of the tenon-tooth clamping blocks that are respectively separated on both sides. The tenon-tooth clamping blocks are provided with a suction cavity communicating with the air intake duct 46 in the vertical direction. The clamping end of the tenon-tooth clamping blocks is provided with a plurality of parallel and spaced slots 47, and the inner end of each slot 47 is communicating with the suction cavity. This design, employing a tapered-expanding inner cylinder 41 and a suction port 411 machined at the throat of the inner cylinder 41, allows for powerful blowing. During blowing, the suction port 411 is closed by an arc block 45 welded inside the movable cover 44, activating the external air source. At this time, compressed air is directly ejected as a high-speed airflow through the inner cylinder 41, achieving strong blowing. During blowing and suction, the suction port 411 of the inner cylinder 41 is opened by the arc block 45 welded inside the movable cover 44. The strong negative pressure generated by the high-speed airflow at the throat draws in nearby debris through the suction port 411, which is then ejected from the outlet along with the main airflow. This achieves simultaneous suction by "generating negative pressure through blowing."

[0029] It should be noted that the "nearby debris" mentioned above refers to the debris located at the multiple slots 47 with parallel grooves on the clamping end of the tenon clamping block. The flow path of the debris will pass through the slots 47, the suction cavity that is connected to the inner end of the slots 47 and is vertically opened in the tenon clamping block, and the air intake duct 46 that is connected to the bottom of the suction cavity, until the lower end of the air intake duct 46 is connected to the jacket space between the inner cylinder 41 and the outer cover 43.

[0030] It should be noted that the corresponding air intake duct 46 connection position on the support panel 2 is provided with a groove, and the air intake duct 46 adopts a flexible hose structure, which can freely extend and retract, and can extend and retract with the movement of the tenon clamping block.

[0031] In one embodiment, the exterior of the movable cover 44 is provided with a transmission assembly that cooperates with the movable blocks 31 distributed opposite to each other on both sides; The transmission assembly includes a toothed ring 7 coaxially mounted on the outside of the movable cover 44, and a rack 71 mounted on the toothed ring 7 and correspondingly connected to the movable block 31. As the two movable blocks 31 move toward each other, the engagement of the rack 71 and the toothed ring 7 will cause the movable cover 44 to rotate, and cause the arc block 45 welded to the connecting rod inside the movable cover 44 to rotate and close at the suction port 411. The compressed air pipe 42 outputs airflow through the upper opening of the inner cylinder 41 to blow away the adhering debris. As the two movable blocks 31 move apart, the engagement of the rack 71 and the toothed ring 7 drives the movable cover 44 to rotate, causing the arc block 45 welded to the connecting rod inside the movable cover 44 to rotate and open the suction port 411. The main airflow is output through the compressed air pipe 42 through the upper opening of the inner cylinder 41, and the strong negative pressure generated at the throat of the inner cylinder 41 will suck in the debris near the clamping end of the tenon tooth clamping block through the suction port 411, and spray it out from the opening along with the main airflow. With this design, the racks 71 welded to the two opposing movable blocks 31 will rotate the meshing toothed ring 7 and the movable cover 44 coaxially fixed to the inner side of the toothed ring 7 as the two movable blocks 31 move towards each other. This will cause the arc block 45 welded to the connecting rod inside the movable cover 44 to rotate circumferentially at the suction port 411, closing the suction port 411. Then, during the tenon grinding process, the external air source equipment is activated, and airflow is ejected through the compressed air pipe 42 connected to the bottom of the inner cylinder 41 to achieve strong blowing, effectively "loosening" or even "blowing away" the stuck and stuck debris, causing it to peel off from the surface. After processing, the two movable blocks 31 move apart, and with the cooperation of the toothed ring 7 and the rack 71, the arc block 45 welded to the inner connecting rod of the movable cover 44 is displaced, opening the suction port 411. Then, the external air source equipment is started, and the main airflow is output through the inner cylinder 41. At this time, the strong negative pressure generated by the main airflow at the throat will suck in the nearby debris through the suction port 411 and spray it out from the outlet (dust collection bag) along with the main airflow, realizing the synchronous suction effect of "using air to generate negative pressure".

[0032] In one embodiment, the displacement assembly 5 includes a base plate 51 disposed at the blade clamping block and located below the corresponding support panel 2, an X-axis guide rail plate 52 that moves relative to the lower surface of the base plate 51 along the length direction of the base plate 51, and a Y-axis guide rail plate 53 that moves relative to the lower surface of the X-axis guide rail plate 52 along the width direction of the base plate 51. The Y-axis guide rail plate 53 is fixed on the workbench 1, and both ends of the base plate 51 are fixedly connected to the sides of the support panel 2. This design allows for relative movement of the base plate 51 welded to both ends of the support panel 2 where the blade clamping block is located, and the guide rails on the X-axis guide rail plate 52 with slots on their bottom surfaces for screw mounting. Simultaneously, the X-axis guide rail plate 52 also has the same slots on its bottom surface for mounting the guide rails on the Y-axis guide rail plate 53. This enables the blade clamping block to be reliably clamped and fixed at the blade of various gas turbines.

[0033] In one embodiment, a displacement component 5 with the same structure is provided at the blade crown clamping block and on the lower side of the support panel 2. This design allows the displacement component 5 with the same structure installed on the lower side of the support panel 2 where the blade crown clamping block is located to move horizontally and determine the fixed position of the blade crown clamping block according to the adjustment rules of the X-axis guide plate 52 and Y-axis guide plate 53 on the lower side of the blade clamping block, thereby reliably clamping and fixing the blade crowns of various gas turbine blades.

[0034] In one embodiment, through-holes are provided on the two support panels 2 where the blade clamping block and the crown clamping block are located. Fastening screws 8 are provided at the through-holes to prevent the support panels 2 from moving. Two through-holes are provided and symmetrically arranged at both ends of the support panels 2. This design, through the through-holes at both ends of the two support panels 2 where the blade clamping block and the crown clamping block are located, and the internally threaded fastening screws 8 machined within the through-holes, allows the fastening screws 8 to be rotated at one end of the through-hole once the corresponding support panel 2 is positioned. This causes the bottom end of the fastening screw 8 to abut against the surface of the workbench 1, thereby achieving a locking effect on the position of the corresponding support panel 2.

[0035] The electrical components described in this article are controlled automatically by a controller. The controller circuit can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0036] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0038] Additionally, "multiple" refers to two or more.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas turbine blade grinding device, comprising a workbench (1) for fixing and supporting the blade and a grinding mechanism disposed on one side of the workbench (1) for grinding the tenon teeth, characterized in that: The workbench (1) is respectively provided with a tenon clamping assembly, a blade clamping assembly and a crown clamping assembly. The tenon clamping assembly, the blade clamping assembly and the crown clamping assembly are arranged side by side and each includes a support panel (2) provided on the workbench (1) and two clamping parts that are relatively and movable on the support panel (2). An adjustment mechanism (3) is provided on the bottom surface of the support panel (2) for adjusting the distance between the two clamping parts accordingly; The airflow generating component (4) is located at the installation position of the tenon clamping component and is used to first blow away the adhering debris at the tenon structure of the blade, and then suck in the loose debris under negative pressure. Two displacement components (5) are set on the workbench (1) and connected to the blade clamping component and the crown clamping component respectively, for adjusting the fixed position of the blade clamping component and the crown clamping component on the horizontal plane where the workbench (1) is located.

2. The gas turbine blade grinding device according to claim 1, characterized in that: The adjustment mechanism (3) includes two movable blocks (31) that slide on the support panel (2) and are rotatably connected to the clamping member, and a bidirectional screw (32) that is adapted to pass through the two movable blocks (31) and is horizontally arranged on the lower side of the support panel (2). One end of the bidirectional screw (32) is provided with a drive motor for use.

3. The gas turbine blade grinding device according to claim 1, characterized in that: Each of the support panels (2) is provided with a rotating shaft on both sides of the clamping member, and a clamping block (6) is rotatably provided on the rotating shaft for adjusting and pressing to prevent the clamping member from rotating.

4. The gas turbine blade grinding device according to claim 2, characterized in that: The clamping components respectively employ tenon clamping blocks, blade clamping blocks, and crown clamping blocks for the tenon clamping assembly, blade clamping assembly, and crown clamping assembly; The airflow generating assembly (4) includes an inner cylinder (41) disposed between the two tenon clamping blocks and correspondingly located on the lower side of the support panel (2), and a compressed air pipe (42) disposed at the bottom of the inner cylinder (41) and connected to an external air source for outputting airflow. The upper opening of the inner cylinder (41) faces the area between the two tenon clamping blocks.

5. The gas turbine blade grinding device according to claim 4, characterized in that: The inner cylinder (41) adopts a tapered-expanding section structure, and the throat of the inner cylinder (41) is provided with a suction port (411). The airflow generating assembly (4) also includes an outer cover (43) coaxially disposed outside the inner cylinder (41) and having a jacket space. The lower end of the outer cover (43) is provided with a movable cover (44) that rotates relative to it via an annular guide rail. An arc block (45) for opening and closing the suction port (411) is provided inside the movable cover (44) via a connecting rod. The top two sides of the jacket space are provided with corresponding air intake ducts (46) connected to the bottom surfaces of the tenon-tooth clamping blocks that are separated on both sides. The vertical direction of the tenon-tooth clamping block is provided with a suction cavity that communicates with the air intake duct (46). The clamping end of the tenon-tooth clamping block is provided with multiple parallel and spaced slots (47), and the inner end of each slot (47) communicates with the suction cavity.

6. The gas turbine blade grinding device according to claim 5, characterized in that: The exterior of the movable cover (44) is provided with a transmission assembly that works in conjunction with the movable blocks (31) distributed on opposite sides. The transmission assembly includes a toothed ring (7) coaxially mounted on the outside of the movable cover (44) and a rack (71) mounted on the toothed ring (7) and correspondingly connected to the movable block (31). As the two movable blocks (31) move toward each other, the engagement of the rack (71) and the toothed ring (7) will cause the movable cover (44) to rotate, and cause the arc block (45) welded by the connecting rod inside the movable cover (44) to rotate and close at the suction port (411). The compressed air pipe (42) will output airflow through the upper opening of the inner cylinder (41) to blow away the adhering debris. As the two movable blocks (31) move apart, the movable cover (44) is rotated by the meshing of the rack (71) and the toothed ring (7), causing the arc block (45) welded by the connecting rod inside the movable cover (44) to rotate and open the suction port (411). The main airflow is output through the compressed air pipe (42) through the upper opening of the inner cylinder (41), and the strong negative pressure generated at the throat of the inner cylinder (41) will suck in the debris near the clamping end of the tenon tooth clamping block through the suction port (411) and spray it out from the opening along with the main airflow.

7. The gas turbine blade grinding device according to claim 4, characterized in that: The displacement component (5) includes a base plate (51) disposed at the blade clamp and located on the lower side of the corresponding support panel (2), an X-axis guide plate (52) that moves relative to the lower surface of the base plate (51) along the length direction of the base plate (51), and a Y-axis guide plate (53) that moves relative to the lower surface of the X-axis guide plate (52) along the width direction of the base plate (51). The Y-axis guide plate (53) is fixed on the workbench (1), and both ends of the base plate (51) are fixedly connected to the side of the support panel (2).

8. The gas turbine blade grinding apparatus according to claim 7, characterized in that: A displacement component (5) with the same structure is provided at the leaf crown clamp and on the lower side of the support panel (2).

9. The gas turbine blade grinding device according to claim 8, characterized in that: The blade clamping block and the crown clamping block are provided with through holes on the two support panels (2) where they are located. The through holes are provided with fastening screws (8) to prevent the support panels (2) from moving. There are two through holes, which are symmetrically arranged at both ends of the support panels (2).

Images