A machining inner tooth tool for a steam seal ring

Abstract

The utility model discloses a steam seal circle processing inner tooth frock relates to inner tooth frock technical field, including fixed mounting disc, one side of fixed mounting disc is connected with the rotary mounting disc of rotation, and the one side of rotary mounting disc is provided with six inclined linkage grooves, and the inside of fixed mounting disc and the position of cooperation with inclined linkage groove are fixedly installed with inner sliding groove block, the inside sliding connection of inner sliding groove block has inner sliding block, and one side of inner sliding block is fixedly installed with the mounting post, and the mounting post is connected with inclined linkage groove slidingly, and one side of inclined linkage groove is fixedly installed with first fixed block, and one side of first fixed block is provided with second fixed block, and the utility model has the advantages that: by adopting the fixed structure of side clamp formula, the steam seal circle is clamped from the side of steam seal circle when using, compared with the clamping type structure in the prior art, can effectively avoid the situation that the whole circle is deformed due to the excessive clamping force.

Description

Technical Field

[0001] This utility model relates to the field of internal gear tooling technology, specifically to a tooling for machining internal gears in a gas seal ring. Background Technology

[0002] One type of steam turbine product is a six-lobed circular steam seal ring with a 1mm tooth width. The common machining process for the internal teeth of the steam seal ring involves a centering chuck for whole-ring machining. The outer circle is centered and clamped, the internal teeth are machined according to the drawing, and then the workpiece is clamped and wire-cut into six lobes until completion. However, this machining process has technical drawbacks: excessive clamping force leads to deformation of the entire circle, while insufficient clamping force results in workpiece escape. Therefore, we propose a new tooling for machining the internal teeth of steam seal rings. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a tooling for machining internal teeth of gas seal rings, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tooling for machining internal teeth of a gas seal ring, comprising a fixed mounting plate, a rotating mounting plate rotatably connected to one side of the fixed mounting plate, six oblique linkage slots on one side of the rotating mounting plate, an inner sliding groove block fixedly installed inside the fixed mounting plate at a position cooperating with the oblique linkage slots, an inner sliding block slidably connected inside the inner sliding groove block, a mounting column fixedly installed on one side of the inner sliding block, the mounting column slidably connected to the oblique linkage slots, a first fixing block fixedly installed on one side of the oblique linkage slots, a second fixing block provided on one side of the first fixing block, a plurality of through connecting slots opened inside the rotating mounting plate, a through connecting arc plate fixedly installed on one side of the fixed mounting plate, the through connecting arc plate slidably connected to the through connecting slots, an inner limiting tooth ring fixedly installed on one side of the through connecting slots, an inner rotating plate fixedly installed on one side of the rotating mounting plate inside the plurality of through connecting slots, and a locking mechanism provided inside the inner rotating plate.

[0005] Preferably, a first connecting screw is fixedly installed on one side of the first fixing block, the first connecting screw passes through the second fixing block and is slidably connected to it, and a nut is threaded on the outside of the first connecting screw to facilitate the positioning of the first fixing block and the second fixing block.

[0006] Preferably, the locking mechanism includes two inner mounting slots, which are formed inside the inner rotating disk. A movable slider is slidably connected inside each of the two inner mounting slots. Engaging teeth are fixedly installed on the opposite sides of each movable slider, engaging with an inner limiting gear ring. A spring is fixedly installed on one side of the inner wall of each inner mounting slot, with the end of the spring away from the inner mounting slot fixedly connected to the movable slider. A pressing plate is fixedly installed on one side of each movable slider.

[0007] Preferably, a number of second connecting bolts are fixedly installed on the side of the fixed mounting plate away from the inner limit ring, so as to facilitate fixing the fixed mounting plate to the spindle of the lathe.

[0008] Preferably, the six inclined linkage slots are arranged in a circular array with the center of the rotating mounting plate as the center point, and the inclined linkage slots are inclined relative to the rotating mounting plate to ensure that the six first fixed blocks move synchronously when the inclined linkage slots affect the position of the first fixed block.

[0009] Preferably, a steam seal ring structure is provided between the first fixing block and the second fixing block to facilitate subsequent processing of the steam seal ring.

[0010] This utility model provides a tooling for machining internal teeth of a gas seal ring, which has the following advantages:

[0011] 1. The internal gear tooling for this steam seal ring uses a six-part fixing structure. During use, the steam seal ring is first cut into six equal parts to release internal stress. The synchronous fixing structure ensures the concentricity of the six parts of the steam seal ring during use, thus guaranteeing the stability of the machining process.

[0012] 2. The internal gear tooling for this steam seal ring uses a side-clamping fixing structure, which clamps the steam seal ring from the side during use. Compared with the clamping structure in the existing technology, this can effectively avoid the deformation of the entire circle caused by excessive clamping force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial unfolded schematic diagram of the present invention;

[0015] Figure 3 This is a partial sectional view of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of the inner rotating disk of this utility model;

[0017] Figure 5 This is a schematic diagram of the rotating mounting disc of this utility model;

[0018] Figure 6 This is a rear view of the mounting plate of this utility model;

[0019] Figure 7 This utility model Figure 2 Enlarged view of point A in the image;

[0020] Figure 8 This utility model Figure 3 Enlarged view of point B in the image.

[0021] In the diagram: 1. Fixed mounting plate; 2. Inner limit ring; 3. Rotating mounting plate; 4. Inclined linkage groove; 5. Inner sliding groove block; 6. Inner sliding block; 7. Mounting column; 8. First fixing block; 9. First connecting screw; 10. Second fixing block; 11. Nut; 12. Through connecting groove; 13. Through connecting arc plate; 14. Inner limit gear ring; 15. Inner rotating plate; 16. Inner mounting groove; 17. Moving slider; 18. Snap-fit ​​teeth; 19. Spring; 20. Second connecting bolt; 21. Press plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 8This utility model provides a technical solution: a tooling for machining the internal teeth of a gas seal ring, including a fixed mounting plate 1. Several second connecting bolts 20 are fixedly installed on the side of the fixed mounting plate 1 away from the inner limit ring 2, facilitating the fixing of the fixed mounting plate 1 onto the spindle of a lathe. A rotating mounting plate 3 is rotatably connected to one side of the fixed mounting plate 1. Six oblique linkage grooves 4 are provided on one side of the rotating mounting plate 3, arranged in a circular array with the center of the rotating mounting plate 3 as the center point. The oblique linkage grooves 4 are obliquely arranged relative to the rotating mounting plate 3, ensuring that the six first fixing blocks 8 move synchronously when the oblique linkage grooves 4 affect the position of the first fixing blocks 8. An inner sliding groove block 5 is fixedly installed inside the fixed mounting plate 1 at a position cooperating with the oblique linkage grooves 4. The inner sliding groove block 5 is slidably connected to... An inner sliding block 6 has a mounting post 7 fixedly installed on one side, which is slidably connected to the inclined linkage groove 4. A first fixing block 8 is fixedly installed on one side of the inclined linkage groove 4, and a second fixing block 10 is provided on one side of the first fixing block 8. A steam seal ring structure is provided between the first fixing block 8 and the second fixing block 10 to facilitate subsequent processing of the steam seal ring. The interior of the rotating mounting plate 3 has several through-connecting grooves 12. A through-connecting arc plate 13 is fixedly installed on one side of the fixed mounting plate 1, which is slidably connected to the through-connecting groove 12. An inner limiting tooth ring 14 is fixedly installed on one side of the through-connecting groove 12. An inner rotating plate 15 is fixedly installed on one side of the rotating mounting plate 3 and inside the several through-connecting grooves 12. A locking mechanism is provided inside the inner rotating plate 15.

[0024] The locking mechanism includes two inner mounting slots 16, which are located inside the inner rotating disk 15. Each inner mounting slot 16 has a sliding slider 17 slidably connected inside it. Each sliding slider 17 has a locking tooth 18 fixedly installed on the side away from each other. The locking tooth 18 meshes with the inner limiting tooth ring 14. A spring 19 is fixedly installed on one side of the inner wall of the inner mounting slot 16. The end of the spring 19 away from the inner mounting slot 16 is fixedly connected to the sliding slider 17. A button plate 21 is fixedly installed on one side of the sliding slider 17.

[0025] In summary, when using this steam seal ring machining internal gear tooling, the steam seal ring to be machined is first placed on one side of several first fixing blocks 8. Before fixing, the position of 8 needs to be adjusted according to the size of the steam seal ring. During adjustment, the pressing plate 21 is pressed inward, so that the locking teeth 18 disengage from the teeth inside the inner limiting tooth ring 14, allowing the inner rotating disk 15 to rotate. When the inner rotating disk 15 rotates, it will drive the rotating mounting disk 3 to rotate synchronously, and then, under the influence of the inclined linkage groove 4, it will drive the mounting column 7 to move, and cause the inner sliding block 6 to slide inside the inner sliding groove block 5, thereby fixing the first fixing block 8. The position is moved. Since the six inclined linkage slots 4 are arranged in a circular array, the positions of the multiple first fixing blocks 8 move synchronously during use. After adjusting the position of the first fixing block 8, the button plate 21 is released. Under the action of the spring 19, the spring 19 is inserted into the teeth inside the inner limit gear ring 14 to fix the position. Then, the second fixing block 10 is put on the outside of the first connecting screw 9, and the first fixing block 8 and the second fixing block 10 are fixed with the nut 11 to fix the steam seal ring. Then, the fixing mounting plate 1 can be installed on the spindle of the lathe using the second connecting bolt 20 for machining.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling for machining internal teeth of a gas seal ring, comprising a fixed mounting plate (1), characterized in that: A rotating mounting plate (3) is rotatably connected to one side of the fixed mounting plate (1). Six inclined linkage slots (4) are provided on one side of the rotating mounting plate (3). An inner sliding groove block (5) is fixedly installed inside the fixed mounting plate (1) and at a position that mates with the inclined linkage slots (4). An inner sliding block (6) is slidably connected inside the inner sliding groove block (5). A mounting column (7) is fixedly installed on one side of the inner sliding block (6). The mounting column (7) is slidably connected to the inclined linkage slot (4). A first fixing block (8) is fixedly installed on one side of the inclined linkage slot (4). A second fixing block (10) is provided on one side of the block (8). Several through-connecting grooves (12) are provided inside the rotating mounting plate (3). A through-connecting arc plate (13) is fixedly installed on one side of the fixed mounting plate (1). The through-connecting arc plate (13) is slidably connected to the through-connecting groove (12). An inner limiting tooth ring (14) is fixedly installed on one side of the through-connecting groove (12). An inner rotating plate (15) is fixedly installed on one side of the rotating mounting plate (3) and inside the several through-connecting grooves (12). A locking mechanism is provided inside the inner rotating plate (15).

2. The tooling for machining internal teeth of a gas seal ring according to claim 1, characterized in that: A first connecting screw (9) is fixedly installed on one side of the first fixing block (8). The first connecting screw (9) passes through the second fixing block (10) and is slidably connected to it. A nut (11) is threadedly connected to the outside of the first connecting screw (9).

3. The tooling for machining internal teeth of a gas seal ring according to claim 1, characterized in that: The locking mechanism includes two inner mounting slots (16), which are located inside the inner rotating disk (15). Each of the two inner mounting slots (16) is slidably connected to a movable slider (17). Each of the two movable sliders (17) is fixedly mounted with a locking tooth (18) on the side away from each other. The locking tooth (18) meshes with the inner limiting tooth ring (14). A spring (19) is fixedly mounted on one side of the inner wall of the inner mounting slot (16). The end of the spring (19) away from the inner mounting slot (16) is fixedly connected to the movable slider (17). A button plate (21) is fixedly mounted on one side of the movable slider (17).

4. The tooling for machining internal teeth of a gas seal ring according to claim 1, characterized in that: Several second connecting bolts (20) are fixedly installed on the side of the fixed mounting plate (1) away from the inner limit ring (2).

5. The tooling for machining internal teeth of a gas seal ring according to claim 1, characterized in that: The six inclined linkage slots (4) are arranged in a circular array with the center of the rotating mounting plate (3) as the center point, and the inclined linkage slots (4) are inclined relative to the rotating mounting plate (3).

6. The tooling for machining internal teeth of a gas seal ring according to claim 1, characterized in that: A steam seal ring structure is provided between the first fixing block (8) and the second fixing block (10).

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