Gear grinding clamp for turbine blade

Abstract

The utility model discloses a gear grinding clamp of a turbine blade, and relates to the technical field of grinding machining of turbine blades. The device comprises a supporting base, a supporting top plate, a clamping mechanism and a fixing mechanism, a mounting groove is formed in the supporting base, a driving motor is arranged in the mounting groove, the upper surface of the driving motor is rotationally connected with a driving motor shaft, the output end of the driving motor shaft is fixedly connected with a rotating shaft, and the rotating shaft is of a threaded rod structure; the upper end of the rotating shaft penetrates through the upper surface of the supporting base, a plurality of supporting columns are fixedly welded to the upper surface of the supporting base, the number of the supporting columns is two, and the two supporting columns are located on the two sides of the rotating shaft correspondingly. A blade body is placed on the clamping mechanism by a worker to be fixed, then the driving motor is started to drive the supporting plate to ascend and descend, the other end of the blade is stably clamped by the fixing mechanism, and finally the transmission motor is started to drive the stably-clamped blade body to rotate to conduct tooth grinding work.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding processing of turbine blades, in particular to a gear grinding fixture for turbine blades. Background Art

[0002] Turbine blades are an important component of the turbine section in a gas turbine engine. The high-speed rotating blades are responsible for drawing high-temperature and high-pressure airflow into the burner to maintain the operation of the engine. In order to ensure stable and long-term operation under extreme conditions of high temperature and high pressure, turbine blades are often forged with high-temperature alloys and cooled in different ways, such as internal airflow cooling, boundary layer cooling, or thermal barrier coatings to protect blades, to ensure reliability during operation. When grinding the turbine blades, they need to be clamped and fixed by a grinding fixture. Existing grinding fixtures can only clamp blades of a certain length or thickness, cannot be adjusted, and are not very practical. Therefore, a grinding fixture for turbine blades is proposed. Utility Model Content

[0003] The utility model aims to provide a turbine blade grinding fixture, which solves the problem that the existing grinding fixture can only clamp blades of a certain length or thickness, cannot be adjusted, and is not practical.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a gear grinding fixture for turbine blades, comprising a support base, a support top plate, a clamping mechanism and a fixing mechanism. A mounting groove is provided inside the support base, a driving motor is arranged inside the mounting groove, a driving motor shaft is rotatably connected to the upper surface of the driving motor, a rotating shaft is fixedly connected to the output end of the driving motor shaft, the rotating shaft is a threaded rod structure, and the upper end of the rotating shaft passes through the upper surface of the support base;

[0006] In the actual working process, the staff places the blade body on the clamping mechanism and fixes it. Then they start the drive motor to drive the support plate up and down, so that the other end of the blade is firmly clamped by the fixing mechanism. Finally, they start the transmission motor to drive the stably clamped blade body to rotate for gear grinding.

[0007] Furthermore, a plurality of support columns are welded and fixed to the upper surface of the support base, and two support columns are provided. The two support columns are respectively located on both sides of the rotating shaft, and the peripheral side surfaces of the support columns are slidably connected with support plates. The rotating shaft penetrates the support plates, and a transmission motor is installed under the support plate. The upper surface of the transmission motor is rotatably connected with a transmission motor shaft, and the output end of the transmission motor shaft is fixedly connected with a rotating shaft, and the upper surface of the rotating shaft is fixedly connected to the lower surface of the clamping mechanism.

[0008] Furthermore, the lower surface of the support top plate is rotatably connected to the upper surface of the rotating shaft, the support top plate passes through the two support columns, and a fixed block is installed on the upper peripheral side of the support column. Two fixed blocks are provided, and the two fixed blocks are respectively arranged on the upper surface and lower surface of the support top plate. The lower surface of the support bottom plate is rotatably connected to a rotating shaft, and the lower surface of the rotating shaft is fixedly connected to the upper surface of the fixing mechanism.

[0009] Furthermore, the clamping mechanism and the fixing mechanism have the same structure, and the clamping mechanism includes an energy storage box and a plurality of installation boxes. Two installation boxes are provided, and an electromagnet is installed inside the energy storage box. An extrusion tube is installed above the electromagnet. The extrusion tube is a "U-shaped" structure, and a permanent magnet block is slidably connected inside the lower part of the extrusion tube. The two installation boxes are connected through the extrusion tube.

[0010] Furthermore, infrared sensors are arranged above the two extrusion tubes, a side surface of the installation box is provided with a plurality of slots, an extrusion block is slidably connected inside the slots, and a silicone pad is welded and fixed to a side surface of a plurality of the extrusion blocks.

[0011] The utility model has the following beneficial effects:

[0012] The utility model can clamp turbine blades of different lengths by starting a driving motor to drive the clamping mechanism to rise and fall, and the staff can put one end of the blade body into the clamping mechanism, and the infrared sensor can sense the object to energize the electromagnet to generate magnetic repulsion to the permanent magnet, so that the permanent magnet block pushes the liquid in the extrusion tube to push the extrusion block outward, and the silicone pad clamps and fixes the blade body, so as to clamp turbine blades of different thicknesses, wherein the silicone pad can increase the friction on the blade and will not cause the blade body to slip or deform; after the blade body is clamped and fixed, the staff can start the transmission motor to rotate the clamping mechanism and the fixing mechanism to drive the blade to perform a gear grinding operation. The device has a simple structure and strong practicality, and greatly improves the working efficiency and the stability of the blade body clamping.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the middle section BB;

[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0020] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1. Support base; 2. Support top plate; 3. Clamping mechanism; 4. Mounting slot; 5. Drive motor; 6. Drive motor shaft; 7. Rotating shaft; 8. Support column; 9. Support plate; 10. Fixing mechanism; 11. Transmission motor; 12. Rotating shaft; 13. Fixed block; 14. Rotating shaft; 15. Energy storage box; 16. Mounting box; 17. Electromagnet; 18. Extrusion tube; 19. Infrared sensor; 20. Extrusion block; 21. Silicone pad; 22. Permanent magnet block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0023] See also Figure 1-Figure 5 As shown, the utility model is a turbine blade grinding fixture, comprising a support base 1, a support top plate 2, a clamping mechanism 3 and a fixing mechanism 10, a mounting groove 4 is provided inside the support base 1, a driving motor 5 is arranged inside the mounting groove 4, a driving motor shaft 6 is rotatably connected to the upper surface of the driving motor 5, a rotating shaft 7 is fixedly connected to the output end of the driving motor shaft 6, the rotating shaft 7 is a threaded rod structure, and the upper end of the rotating shaft 7 passes through the upper surface of the support base 1;

[0024] In the actual working process, the staff places the blade body on the clamping mechanism 3 and fixes it, then starts the drive motor 5 to drive the support plate 9 to move up and down, so that the other end of the blade is firmly clamped by the fixing mechanism 10, and finally starts the transmission motor 11 to drive the stably clamped blade body to rotate for gear grinding.

[0025] Preferably, a plurality of support columns 8 are welded and fixed on the upper surface of the support base 1 and are respectively located on both sides of the rotating shaft 7. A support plate 9 is slidably connected to the side surfaces of the support columns 8. The rotating shaft 7 passes through the support plate 9. A transmission motor 11 is installed under the support plate 9. The upper surface of the transmission motor 11 is rotatably connected to the transmission motor shaft. The output end of the transmission motor shaft is fixedly connected to a rotating shaft 12. The upper surface of the rotating shaft 12 is fixedly connected to the lower surface of the clamping mechanism 3.

[0026] Preferably, the lower surface of the support top plate 2 is rotatably connected to the upper surface of the rotating shaft 7, the support top plate 2 passes through two support columns 8, and a fixed block 13 is installed on the upper peripheral side of the support column 8. Two fixed blocks 13 are provided, and the two fixed blocks 13 are respectively arranged on the upper surface and lower surface of the support top plate 2. The lower surface of the support top plate 2 is rotatably connected to the rotating shaft 14, and the lower surface of the rotating shaft 14 is fixedly connected to the upper surface of the fixing mechanism 10.

[0027] Preferably, the clamping mechanism 3 and the fixing mechanism 10 have the same structure. The clamping mechanism 3 includes an energy storage box 15 and a plurality of installation boxes 16. Two installation boxes 16 are provided. An electromagnet 17 is installed inside the energy storage box 15. An extrusion tube 18 is installed above the electromagnet 17. The extrusion tube 18 is a "U-shaped" structure. A permanent magnet block 22 is slidably connected to the interior below the extrusion tube 18. The two installation boxes 16 are connected through the extrusion tube 18.

[0028] Preferably, an infrared sensor 19 is provided above the two extrusion tubes 18 , a plurality of slots are provided on one side of the installation box 16 , extrusion blocks 20 are slidably connected inside the slots, and a silicone pad 21 is welded and fixed to one side of the plurality of extrusion blocks 20 .

[0029] Example:

[0030] In the actual working process, the staff places the lower end of the blade body between the infrared sensor 19 and the two mounting boxes 16. The infrared sensor 19 senses the presence of an object, so that the electromagnet 17 is energized to generate a magnetic repulsion force on the permanent magnet block 22, so that the permanent magnet block 22 pushes the liquid in the extrusion tube 18 to push the extrusion block 20 outward, and the silicone pad 21 clamps and fixes the blade body. Then, the drive motor 5 is started to rotate the drive motor shaft 6 to drive the rotating shaft 7 to rotate, and then the support plate 9 is raised and lowered on the support column 8 to adjust the position. After that, the upper end of the blade is clamped firmly by the fixing mechanism 10, and finally the transmission motor 11 is started to rotate the rotating shaft 12, so that the clamping mechanism 3 and the fixing mechanism 10 rotate, and the blade is driven to perform the gear grinding operation.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A turbine blade gear grinding fixture, comprising a support base (1), a support top plate (2), a clamping mechanism (3) and a fixing mechanism (10), characterized in that: The support base (1) is provided with a mounting groove (4) inside, a driving motor (5) is arranged inside the mounting groove (4), the upper surface of the driving motor (5) is rotatably connected to a driving motor shaft (6), the output end of the driving motor shaft (6) is fixedly connected to a rotating shaft (7), the rotating shaft (7) is a threaded rod structure, and the upper end of the rotating shaft (7) passes through the upper surface of the support base (1).

2. A turbine blade gear grinding fixture according to claim 1, characterized in that: A plurality of support columns (8) are welded and fixed on the upper surface of the support base (1) and are respectively located on both sides of the rotating shaft (7); a support plate (9) is slidably connected to the peripheral side surface of the support column (8); the rotating shaft (7) passes through the support plate (9); a transmission motor (11) is installed below the support plate (9); a transmission motor shaft is rotatably connected to the upper surface of the transmission motor (11); a rotating shaft (12) is fixedly connected to the output end of the transmission motor shaft; and the upper surface of the rotating shaft (12) is fixedly connected to the lower surface of the clamping mechanism (3).

3. A turbine blade gear grinding fixture according to claim 2, characterized in that: The lower surface of the support top plate (2) is rotatably connected to the upper surface of the rotating shaft (7); the support top plate (2) passes through the two support columns (8); a fixed block (13) is installed on the upper peripheral side of the support column (8); two fixed blocks (13) are provided; the two fixed blocks (13) are respectively provided on the upper surface and the lower surface of the support top plate (2); the lower surface of the support top plate (2) is rotatably connected to a rotating shaft (14); the lower surface of the rotating shaft (14) is fixedly connected to the upper surface of the fixing mechanism (10).

4. A turbine blade gear grinding fixture according to claim 3, characterized in that: The clamping mechanism (3) and the fixing mechanism (10) have the same structure. The clamping mechanism (3) comprises an energy storage box (15) and a plurality of installation boxes (16). Two installation boxes (16) are provided. An electromagnet (17) is installed inside the energy storage box (15). An extrusion tube (18) is installed above the electromagnet (17). The extrusion tube (18) is a "U-shaped" structure. A permanent magnet block (22) is slidably connected inside the lower part of the extrusion tube (18). The two installation boxes (16) are connected through the extrusion tube (18).

5. A turbine blade gear grinding fixture according to claim 4, characterized in that: An infrared sensor (19) is arranged above the two extrusion tubes (18); a plurality of slots are opened on one side of the installation box (16); extrusion blocks (20) are slidably connected inside the slots; and a silicone pad (21) is welded and fixed to one side of the plurality of extrusion blocks (20).

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