Laser drilling clamp for turbine moving blade of gas turbine

By designing a laser drilling fixture for turbine driving blades of gas turbines, the problem of inconvenience in laser drilling of turbine driving blades is solved, and a stable and reliable processing process and high-quality finished products are achieved.

CN222569628UActive Publication Date: 2025-03-07江苏源清动力技术有限公司
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Patent Information

Application Number
CN202420633613.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-03-07
Estimated Expiration
2034-03-29

AI Technical Summary

Technical Problem

The turbine driving blades of gas turbines are complex in structure, inconvenient laser drilling and lack of suitable clamping tools, resulting in unstable processing and low quality.

Method used

A laser drilling fixture for turbine driving blades of gas turbines is designed, including a base plate, a movable clamping block and a fixed clamping block, and the stable clamping and positioning of turbine driving blades is achieved through clamping grooves and adjustment rods.

Benefits of technology

It realizes stable and reliable clamping of the turbine driving blades of the gas turbine, ensures the smooth progress of laser holes, and improves work efficiency and processing quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222569628U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of turbine moving blade machining, in particular to a laser drilling clamp for a turbine moving blade of a gas turbine. The clamping device comprises a bottom plate, a movable clamping block mounting frame and a fixed clamping block are fixed to the left side and the right side of the bottom plate respectively, the two movable clamping blocks are arranged on the movable clamping block mounting frame side by side, and a clamping cavity for clamping turbine moving blades is formed between the movable clamping block mounting frame and the fixed clamping block; movable clamping grooves are formed in the ends, facing the fixed clamping block, of the two movable clamping blocks, the movable clamping grooves can be connected with the tenon tooth part of the clamped turbine moving blade in a matched mode, fixed clamping grooves are formed in the ends, facing the two movable clamping blocks, of the fixed clamping block, and the fixed clamping grooves can be connected with the tenon tooth part of the clamped turbine moving blade in a matched mode. The clamping grooves formed in the movable clamping block and the fixed clamping block can stably and reliably clamp the turbine moving blade of the gas turbine, it is guaranteed that laser drilling of the turbine moving blade of the gas turbine is conducted smoothly, and work efficiency and machining quality are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of turbine moving blade processing, in particular to a laser punching fixture for turbine moving blades of a gas turbine. Background Art

[0002] The laser drilling technology for aeroengine blades uses high-energy micro-light to penetrate the material on the circuit board, causing it to strongly absorb the high-energy laser drilling and convert it into heat energy, causing it to melt and burn at high temperature, forming a gaseous state and dispersing to form micropores.

[0003] Due to the complex structure of gas turbine turbine blades, laser drilling on gas turbine turbine blades is very inconvenient. A clamping tool that can realize laser drilling processing of gas turbine turbine blades is needed to ensure that gas turbine blades can be laser drilled stably and reliably. Utility Model Content

[0004] In response to the shortcomings of the above-mentioned existing production technology, the present application provides a gas turbine turbine blade laser drilling fixture, which can achieve stable and reliable clamping of the gas turbine turbine blades, ensure the smooth progress of the laser drilling of the gas turbine turbine blades, and improve work efficiency and processing quality.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A gas turbine turbine blade laser drilling fixture comprises a base plate, on which a movable clamping block mounting frame and a fixed clamping block are respectively fixed on the left and right sides of the base plate, two movable clamping blocks are arranged side by side on the movable clamping block mounting frame, and a clamping cavity for clamping the turbine blade is formed between the movable clamping block mounting frame and the fixed clamping block; movable clamping grooves are arranged on one end of the two movable clamping blocks facing the fixed clamping blocks, and the movable clamping grooves and the tenon teeth of the clamped turbine blades can be matched and connected; fixed clamping grooves are arranged on one end of the fixed clamping blocks facing the two movable clamping blocks, and the fixed clamping grooves and the tenon teeth of the clamped turbine blades can be matched and connected.

[0007] Furthermore, one end of the movable clamping block facing away from the fixed clamping block is connected to a movable clamping block adjusting rod, and the movable clamping block adjusting rod is connected to the movable clamping block mounting frame through threads.

[0008] Furthermore, a first T-shaped slot is provided on one end of the movable clamp block facing the movable clamp block adjustment rod, and a first T-shaped joint is provided on one end of the movable clamp block adjustment rod facing the movable clamp block. The first T-shaped joint is fitted and connected in the first T-shaped slot, and the first T-shaped joint can rotate freely in the first T-shaped slot.

[0009] Furthermore, a first positioning mounting frame and a second positioning mounting frame are fixed on the base plate, a first positioning block is arranged in the first positioning mounting frame, the first positioning block is located above the movable clamping block, and the first positioning block can press against the arc surface on one side of the blade crown of the clamped turbine moving blade, and a second positioning block is arranged in the second positioning mounting frame, the second positioning block is located above the fixed clamping block, and the second positioning block can press against the plane on one side of the blade crown of the turbine moving blade.

[0010] Furthermore, an arc-shaped positioning end face is provided at one end of the first positioning block, and the arc-shaped positioning end face can match and contact the arc surface of one side of the blade crown of the turbine moving blade. The other end of the first positioning block is connected to the first positioning block adjusting rod, and the first positioning block adjusting rod is connected to the first positioning mounting frame through a thread.

[0011] Furthermore, a second T-shaped slot is provided at one end of the first positioning block adjusting rod facing the first positioning block, and a second T-shaped joint is provided at one end of the first positioning block adjusting rod facing the first positioning block. The second T-shaped joint is fitted and connected in the second T-shaped slot, and the second T-shaped joint can rotate freely in the second T-shaped slot.

[0012] Furthermore, one end of the second positioning block is a straight end face, and the straight end face of the second positioning block can match the plane of one side of the blade crown that contacts the turbine blade. The other end of the second positioning block is connected to the second positioning block adjustment rod, and the second positioning block adjustment rod is connected to the second positioning mounting frame through a thread.

[0013] Furthermore, a third T-shaped slot is set on one end of the second positioning block adjusting rod facing the second positioning block, and a third T-shaped joint is set on one end of the second positioning block adjusting rod facing the second positioning block. The third T-shaped joint is fitted and connected in the third T-shaped slot, and the third T-shaped joint can rotate freely in the third T-shaped slot.

[0014] Furthermore, a side limit mounting frame is fixed on the bottom plate, the side limit mounting frame is located on one side of the clamping cavity, and a side limit column is horizontally arranged on the side limit mounting frame, and the side limit column can contact the side of the turbine moving blade.

[0015] Furthermore, hanging rings are respectively arranged at four corners of the bottom plate.

[0016] The beneficial effects of the utility model are as follows:

[0017] The clamping grooves arranged on the movable clamping block and the fixed clamping block of the utility model can realize stable and reliable clamping of the turbine moving blades of the gas turbine, ensure the smooth laser drilling of the turbine moving blades of the gas turbine, and improve the work efficiency and processing quality; the movable clamping block of the utility model can adjust the clamping degree of the turbine moving blades; the utility model realizes the auxiliary positioning of the turbine moving blades of the gas turbine through the first positioning block and the second positioning block, and improves the stability of the clamping of the turbine moving blades of the gas turbine; the first positioning block and the second positioning block of the utility model can adjust the clamping degree of the turbine moving blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model.

[0019] Figure 2 It is a clamping schematic diagram of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the movable clamping block of the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the first positioning block of the utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the second positioning block of the utility model.

[0023] Wherein: 1. bottom plate; 2. movable clamping block mounting frame; 3. fixed clamping block; 4. movable clamping block; 5. movable clamping block adjusting rod; 6. first T-shaped slot; 7. first T-shaped joint; 8. movable clamping slot; 9. fixed clamping slot; 10. first positioning mounting frame; 11. first positioning block; 12. first positioning block adjusting rod; 13. second T-shaped slot; 14. second T-shaped joint; 15. arc-shaped positioning end face; 16. second positioning mounting frame; 17. second positioning block; 18. second positioning block adjusting rod; 19. third T-shaped slot; 20. third T-shaped joint; 21. side limit mounting frame; 22. side limit column; 23. lifting ring; 24. turbine moving blade. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, a gas turbine turbine blade laser drilling fixture includes a base plate 1, on which a movable clamping block mounting frame 2 and a fixed clamping block 3 are respectively fixed on the left and right sides of the base plate 1, two movable clamping blocks 4 are arranged side by side on the movable clamping block mounting frame 2, and a clamping cavity for clamping the turbine blade 24 is formed between the movable clamping block mounting frame 2 and the fixed clamping block 3. When clamping the turbine blade 24, the tenon tooth portion of the turbine blade is placed between two movable clamping blocks 4 and the fixed clamping block 3, and the two movable clamping blocks 4 and the fixed clamping block 3 cooperate to clamp the tenon tooth portion of the turbine blade 24 on the left and right sides.

[0026] like Figure 1 and Figure 2As shown, a movable clamping groove 8 is provided on one end of the two movable clamping blocks 4 facing the fixed clamping block 3, and the movable clamping groove 8 and the tenon portion of the clamped turbine blade 24 can be matched and connected. A fixed clamping groove 9 is provided on one end of the fixed clamping block 3 facing the two movable clamping blocks 4, and the fixed clamping groove 9 and the tenon portion of the clamped turbine blade 24 can be matched and connected, thereby realizing reliable and stable clamping of the tenon portion of the turbine blade 24.

[0027] like Figure 3 As shown, one end of the movable clamp block 4 facing away from the fixed clamp block 3 is connected to the movable clamp block adjusting rod 5, and the movable clamp block adjusting rod 5 is threadedly connected to the movable clamp block mounting frame 2. Rotating the movable clamp block adjusting rod 5 can drive the movable clamp block 4 to move left and right, thereby adjusting the clamping degree of the tenon tooth part of the turbine moving blade 24.

[0028] like Figure 3 As shown, a first T-shaped slot 6 is provided at one end of the movable clamp 4 facing the movable clamp adjusting rod 5, and a first T-shaped joint 7 is provided at one end of the movable clamp adjusting rod 5 facing the movable clamp 4. The first T-shaped joint 7 is fitted and connected in the first T-shaped slot 6, and the first T-shaped joint 7 can rotate freely in the first T-shaped slot 6.

[0029] like Figure 1 and Figure 2 As shown, a first positioning mounting frame 10 and a second positioning mounting frame 16 are fixed on the bottom plate 1, a first positioning block 11 is arranged in the first positioning mounting frame 10, the first positioning block 11 is located above the movable clamping block 4, and the first positioning block 11 can press against the arc surface on one side of the blade crown of the clamped turbine moving blade 24. A second positioning block 17 is arranged in the second positioning mounting frame 16, the second positioning block 17 is located above the fixed clamping block 3, and the second positioning block 17 can press against the plane on one side of the blade crown of the turbine moving blade 24.

[0030] like Figure 4 As shown, an arc-shaped positioning end face 15 is provided at one end of the first positioning block 11, and the arc-shaped positioning end face 15 can match and contact the arc surface of one side of the blade crown of the turbine moving blade 24, and the other end of the first positioning block 11 is connected to the first positioning block adjustment rod 12, and the first positioning block adjustment rod 12 is connected to the first positioning mounting frame 10 through a thread. Rotating the first positioning block adjustment rod 12 can drive the first positioning block 11 to move left and right, thereby adjusting the degree of tightening of the blade crown of the turbine moving blade 24.

[0031] like Figure 4 As shown, a second T-shaped slot 13 is provided at one end of the first positioning block 11 facing the first positioning block adjusting rod 12, and a second T-shaped joint 14 is provided at one end of the first positioning block adjusting rod 12 facing the first positioning block 11. The second T-shaped joint 14 is fitted and connected in the second T-shaped slot 13, and the second T-shaped joint 14 can rotate freely in the second T-shaped slot 13.

[0032] like Figure 5 As shown, one end of the second positioning block 17 is a straight end surface, and the straight end surface of the second positioning block 17 can match and contact the plane of one side of the blade crown of the turbine moving blade 24, and the other end of the second positioning block 17 is connected to the second positioning block adjustment rod 18, and the second positioning block adjustment rod 18 is connected to the second positioning mounting frame 16 through a thread. Rotating the second positioning block adjustment rod 18 can drive the second positioning block 17 to move left and right, thereby adjusting the degree of tightening of the blade crown of the turbine moving blade 24.

[0033] like Figure 5 As shown, a third T-shaped slot 19 is provided at one end of the second positioning block 17 facing the second positioning block adjusting rod 18, and a third T-shaped joint 20 is provided at one end of the second positioning block adjusting rod 18 facing the second positioning block 17. The third T-shaped joint 20 is fitted and connected in the third T-shaped slot 19, and the third T-shaped joint 20 can rotate freely in the third T-shaped slot 19.

[0034] like Figure 1 As shown, a side limit mounting frame 21 is fixed on the base plate 1, and the side limit mounting frame 21 is located on one side of the clamping cavity. A side limit column 22 is horizontally arranged on the side limit mounting frame 21, and the side limit column 22 can contact the side of the turbine blade 24 to realize the limiting function of the turbine blade 24.

[0035] like Figure 1 As shown, lifting rings 23 are respectively provided at the four corners of the bottom plate 1 , and the entire clamp can be lifted conveniently and quickly through the lifting rings 23 at the four corners of the bottom plate 1 .

[0036] The working principle of the utility model is: Figure 2 As shown, when performing laser drilling of turbine blades of a gas turbine, the tenon tooth portion of the turbine blade 24 is clamped in the clamping cavity formed between the movable clamping block mounting frame 2 and the fixed clamping block 3, and the two movable clamping blocks 4 and the fixed clamping block 3 cooperate to clamp the tenon tooth portion of the turbine blade 24. Then, the first positioning block 11, the second positioning block 17 and the side limit column 22 are adjusted to assist in realizing the reliable positioning of the turbine blade 24, thereby completing the processing and clamping of the turbine blade 24.

[0037] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A gas turbine blade laser drilling fixture, comprising a base plate (1), characterized in that: The bottom plate (1) is divided into left and right sides on which a movable clamping block mounting frame (2) and a fixed clamping block (3) are respectively fixed; two movable clamping blocks (4) are arranged side by side on the movable clamping block mounting frame (2); a clamping cavity for clamping a turbine moving blade (24) is formed between the movable clamping block mounting frame (2) and the fixed clamping block (3); movable clamping grooves (8) are arranged at one end of the two movable clamping blocks (4) facing the fixed clamping block (3); the movable clamping grooves (8) and the tenon teeth of the clamped turbine moving blade (24) can be matched and connected; and a fixed clamping groove (9) is arranged at one end of the fixed clamping block (3) facing the two movable clamping blocks (4); the fixed clamping groove (9) and the tenon teeth of the clamped turbine moving blade (24) can be matched and connected.

2. A gas turbine turbine blade laser drilling fixture as claimed in claim 1, characterized in that: One end of the movable clamp block (4) facing away from the fixed clamp block (3) is connected to a movable clamp block adjustment rod (5), and the movable clamp block adjustment rod (5) is connected to the movable clamp block mounting frame (2) via a thread.

3. A gas turbine turbine blade laser drilling fixture as claimed in claim 2, characterized in that: The movable clamping block (4) is provided with a first T-shaped slot (6) at one end facing the movable clamping block adjustment rod (5), and the movable clamping block adjustment rod (5) is provided with a first T-shaped joint (7) at one end facing the movable clamping block (4); the first T-shaped joint (7) is fitted and connected in the first T-shaped slot (6), and the first T-shaped joint (7) can rotate freely in the first T-shaped slot (6).

4. A gas turbine turbine blade laser drilling fixture as claimed in claim 3, characterized in that: A first positioning mounting frame (10) and a second positioning mounting frame (16) are fixed on the base plate (1); a first positioning block (11) is arranged in the first positioning mounting frame (10); the first positioning block (11) is located above the movable clamping block (4); the first positioning block (11) can press against a curved surface on one side of a blade crown of a clamped turbine moving blade (24); a second positioning block (17) is arranged in the second positioning mounting frame (16); the second positioning block (17) is located above the fixed clamping block (3); the second positioning block (17) can press against a flat surface on one side of a blade crown of the turbine moving blade (24).

5. A gas turbine turbine blade laser drilling fixture as claimed in claim 4, characterized in that: An arc-shaped positioning end surface (15) is provided at one end of the first positioning block (11), and the arc-shaped positioning end surface (15) is capable of matching and contacting a side arc surface of a blade crown of a turbine rotor blade (24). The other end of the first positioning block (11) is connected to a first positioning block adjustment rod (12), and the first positioning block adjustment rod (12) is connected to a first positioning mounting frame (10) via a thread.

6. A gas turbine turbine blade laser drilling fixture as claimed in claim 5, characterized in that: A second T-shaped slot (13) is provided at one end of the first positioning block (11) facing the first positioning block adjustment rod (12), and a second T-shaped joint (14) is provided at one end of the first positioning block adjustment rod (12) facing the first positioning block (11); the second T-shaped joint (14) is fitted and connected in the second T-shaped slot (13), and the second T-shaped joint (14) can rotate freely in the second T-shaped slot (13).

7. A gas turbine blade laser drilling fixture as claimed in claim 6, characterized in that: One end of the second positioning block (17) is a straight end surface, the straight end surface of the second positioning block (17) can match and contact a plane on one side of the blade crown of the turbine moving blade (24), the other end of the second positioning block (17) is connected to a second positioning block adjustment rod (18), and the second positioning block adjustment rod (18) is connected to the second positioning mounting frame (16) via a thread.

8. A gas turbine turbine blade laser drilling fixture as claimed in claim 7, characterized in that: A third T-shaped slot (19) is provided at one end of the second positioning block (17) facing the second positioning block adjustment rod (18), and a third T-shaped connector (20) is provided at one end of the second positioning block adjustment rod (18) facing the second positioning block (17); the third T-shaped connector (20) is fitted and connected in the third T-shaped slot (19), and the third T-shaped connector (20) can rotate freely in the third T-shaped slot (19).

9. A gas turbine turbine blade laser drilling fixture as claimed in claim 8, characterized in that: A side limit mounting frame (21) is fixed on the bottom plate (1), the side limit mounting frame (21) is located on one side of the clamping cavity, and a side limit column (22) is horizontally arranged on the side limit mounting frame (21), the side limit column (22) being able to contact the side of the turbine rotor blade (24).

10. A gas turbine turbine blade laser drilling fixture as claimed in claim 9, characterized in that: Hanging rings (23) are respectively provided at the four corners of the bottom plate (1).