Grinding fixture for basin-side radial surface of guide vane of gas turbine

Abstract

The utility model relates to the technical field of turbine guide vane machining, in particular to a gas turbine guide vane basin side radial face grinding clamp. The device comprises a bottom plate, a first supporting plate and a second supporting plate are arranged on the bottom plate side by side, two first pressing plates are arranged on one side of the first supporting plate side by side and connected with the bottom plate through first bolts, and a pressing plate mounting block is arranged on one side of the second supporting plate and fixed to the bottom plate. The upper end face of the pressing plate mounting block is connected with a second pressing plate through second bolts. A first limiting frame and a second limiting frame are fixed to the bottom plate, the first limiting frame is located on the left side of the first supporting plate, a first supporting inclined face is arranged on the first limiting frame, and a third pressing plate is connected to the first supporting inclined face through a third bolt. The guide vane machining tool can effectively fix the machined guide vane, prevents the guide vane basin side radial face from displacing or loosening in the grinding process, and improves the machining precision and the machining quality of the vane.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine guide vane processing, in particular to a side radial surface grinding fixture for a gas turbine guide vane basin. Background Art

[0002] The structure of the gas turbine guide vane is complex. During the guide vane manufacturing process, the radial surface of the guide vane basin needs to be ground. During the grinding process of the guide vane radial surface, if the blade clamping is unreasonable, it is easy to cause uneven grinding and dimensional tolerance problems, which will affect the quality of the blade. Utility Model Content

[0003] In view of the shortcomings of the above-mentioned existing production technology, the present application provides a gas turbine guide vane basin side radial surface grinding fixture, which can prevent displacement or loosening of the guide vane basin side radial surface during grinding, thereby improving the guide vane processing accuracy and guide vane processing quality.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A side radial surface grinding fixture for a gas turbine guide vane basin comprises a base plate, wherein a first support plate and a second support plate are arranged side by side on the base plate, two first pressure plates are arranged side by side on one side of the first support plate, the two first pressure plates are respectively connected to the base plate by first bolts, a pressure plate mounting block is arranged on one side of the second support plate, the pressure plate mounting block is fixed to the base plate, and the upper end surface of the pressure plate mounting block is connected to the second pressure plate by second bolts; a first limiting frame and a second limiting frame are respectively fixed on the base plate, the first limiting frame is located on the left side of the first support plate, a first supporting inclined surface is arranged on the first limiting frame, the first supporting inclined surface is connected to the third pressure plate by a third bolt, the second limiting frame is located on the left side of the second support plate, a second supporting inclined surface is arranged on the second limiting frame, and the fourth pressure plate is connected to the second supporting inclined surface by a fourth bolt; another two clamping block mounting frames are fixed on the base plate, the two clamping block mounting frames are respectively located on the right sides of the first support plate and the second support plate, and an upper clamping block and a lower clamping block are arranged on the clamping block mounting frames.

[0006] Furthermore, first support blocks protruding upward are respectively provided at both ends of the first support plate, and second support blocks protruding upward are respectively provided at both ends of the second support plate. The first support block and the second support block are used to support and hold up the edge plates on both sides of the guide vane.

[0007] Furthermore, the first pressure plate is an L-shaped structure, one end of the first pressure plate presses the contact edge plate, the other end of the first pressure plate contacts the upper surface of the bottom plate, and an oblong first adjustment hole is set at the position of the first pressure plate connected to the first bolt.

[0008] Furthermore, the second pressure plate is an L-shaped structure, one end of the second pressure plate presses the contact edge plate, the other end of the second pressure plate contacts the upper surface of the bottom plate, and an oblong second adjustment hole is set at the position of the second pressure plate connecting the second bolt.

[0009] Furthermore, two limiting columns are arranged on the first supporting inclined surface.

[0010] Furthermore, the third pressure plate is an L-shaped structure, one end of the third pressure plate is pressed against the edge plate, the other end of the second pressure plate contacts the first supporting inclined surface, and an oblong third adjustment hole is arranged on the third pressure plate at a position where the third bolt is connected.

[0011] Furthermore, the fourth pressure plate is an L-shaped structure, one end of the fourth pressure plate is pressed against the edge plate, the other end of the fourth pressure plate contacts the second supporting slope, and an oblong fourth adjustment hole is arranged on the fourth pressure plate at a position where the fourth bolt is connected.

[0012] Furthermore, one end of the upper clamping block is connected to the upper adjusting rod, and the upper adjusting rod is connected to the clamping block mounting frame through a threaded connection. A T-shaped connector is arranged on the end of the upper adjusting rod facing the upper clamping block, and a T-shaped connecting groove is arranged on the end of the upper clamping block facing the upper adjusting rod. The T-shaped connector of the upper adjusting rod is fitted and connected in the T-shaped connecting groove of the upper clamping block, and the T-shaped connector of the upper adjusting rod can rotate freely in the T-shaped connecting groove of the upper clamping block.

[0013] Furthermore, one end of the lower clamping block is connected to the lower adjusting rod, and the lower adjusting rod is connected to the clamping block mounting frame through a threaded connection, a T-shaped connector is arranged on the end of the lower adjusting rod facing the lower clamping block, and a T-shaped connecting groove is arranged on the end of the lower clamping block facing the lower adjusting rod, the T-shaped connector of the lower adjusting rod is fitted and connected in the T-shaped connecting groove of the lower clamping block, and the T-shaped connector of the lower adjusting rod can rotate freely in the T-shaped connecting groove of the lower clamping block.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model can effectively fix the processed guide vane, prevent displacement or loosening during the grinding process of the radial surface of the guide vane basin side, and improve the blade processing accuracy and blade processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first perspective stereogram of the present invention.

[0017] Figure 2 This is a stereoscopic diagram from a second viewing angle of the present invention.

[0018] Figure 3 This is a structural diagram of the first pressing plate of the utility model.

[0019] Figure 4 This is a structural diagram of the second pressing plate of the present utility model.

[0020] Figure 5 This is a structural diagram of the third pressing plate of the present utility model.

[0021] Figure 6 This is a structural diagram of the fourth pressing plate of the present utility model.

[0022] Figure 7 This is a structural diagram of the upper pressing block of the utility model.

[0023] Figure 8 This is a structural diagram of the lower pressing block of the utility model.

[0024] Fig. 9 It is a schematic diagram of the clamping guide vane of the utility model.

[0025] Wherein: 1. bottom plate; 2. first support plate; 3. first support block; 4. first pressure plate; 5. pressure plate mounting block; 6. second pressure plate; 7. first limiting frame; 8. third pressure plate; 9. limiting column; 10. second limiting frame; 11. fourth pressure plate; 12. clamping block mounting frame; 13. upper clamping block; 14. lower clamping block; 15. second support plate; 16. second support block; 17. first adjustment hole; 18. second adjustment hole; 19. first supporting inclined plane; 20. second supporting inclined plane; 21. third adjustment hole; 22. fourth adjustment hole; 23. upper adjustment rod; 24. lower adjustment rod; 25. guide vane. DETAILED DESCRIPTION

[0026] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0027] like Figure 1 and Figure 2 As shown, a gas turbine guide vane basin side radial surface grinding fixture comprises a base plate 1, on which a first support plate 2 and a second support plate 15 are arranged side by side, first support blocks 3 protruding upward are respectively arranged at both ends of the first support plate 2, and second support blocks 16 protruding upward are respectively arranged at both ends of the second support plate 15, and the first support blocks 3 and the second support blocks 16 are used to support and hold up the edge plates on both sides of the guide vane.

[0028] like Figure 1 and Figure 2 As shown, two first pressing plates 4 are arranged side by side on one side of the first support plate 2, and the two first pressing plates 4 are respectively connected to the bottom plate 1 by first bolts, and the two first pressing plates 4 can press the edge plate on one side of the guide vane onto the first support block 3. A pressing plate mounting block 5 is arranged on one side of the second support plate 15, and the pressing plate mounting block 5 is fixed on the bottom plate 1, and the upper end surface of the pressing plate mounting block 5 is connected to the second pressing plate 6 by a second bolt, and the second pressing plate 6 can press the edge plate on the other side of the guide vane onto the second support block 16.

[0029] like Figure 3As shown, the first pressing plate 4 is an L-shaped structure, one end of the first pressing plate 4 is pressed against the edge plate, and the other end of the first pressing plate 4 is in contact with the upper end surface of the bottom plate 1. An oblong first adjusting hole 17 is provided at the position where the first bolt is connected on the first pressing plate 4, and the first bolt can adjust the front and rear position along the first adjusting hole 17.

[0030] like Figure 4 As shown, the second pressing plate 6 is an L-shaped structure, one end of the second pressing plate 6 is pressed against the edge plate, and the other end of the second pressing plate 6 is in contact with the upper end surface of the bottom plate 1. An oblong second adjustment hole 18 is provided at the position where the second bolt is connected on the second pressing plate 6, and the second bolt can adjust the front and rear position along the second adjustment hole 18.

[0031] like Figure 1 and Figure 2 As shown, the first limiting frame 7 and the second limiting frame 10 are respectively fixed on the bottom plate 1, the first limiting frame 7 is located on the left side of the first supporting plate 2, the first limiting frame 7 is provided with a first supporting inclined surface 19 for supporting the side of the edge plate, the first supporting inclined surface 19 is connected to the third pressing plate 8 by a third bolt, and the third pressing plate 8 can press the side of the edge plate against the first supporting inclined surface 19. The second limiting frame 10 is located on the left side of the second supporting plate 15, the second limiting frame 10 is provided with a second supporting inclined surface 20 for supporting the side of the edge plate, the second supporting inclined surface 20 is connected to the fourth pressing plate 11 by a fourth bolt, and the fourth pressing plate 11 can press the side of the edge plate against the second supporting inclined surface 20.

[0032] like Figure 1 and Figure 2 As shown, two limiting columns 9 are arranged on the first supporting inclined surface 19 , and the two limiting columns 9 can contact the side edge of the edge plate leaning against the first supporting inclined surface 19 to achieve the limiting of the side edge of the edge plate.

[0033] like Figure 5 As shown, the third pressing plate 8 is an L-shaped structure, one end of the third pressing plate 8 is pressed against the edge plate, and the other end of the second pressing plate 6 is in contact with the first supporting inclined surface 19. An oblong third adjusting hole 21 is provided at the position where the third bolt is connected on the third pressing plate 8, and the third bolt can adjust the front and rear position along the third adjusting hole 21.

[0034] like Figure 6 As shown, the fourth pressure plate 11 is an L-shaped structure, one end of the fourth pressure plate 11 is pressed against the contact edge plate, and the other end of the fourth pressure plate 11 contacts the second supporting slope 20. An oblong fourth adjustment hole 22 is provided on the fourth pressure plate 11 at the position where the fourth bolt is connected, and the fourth bolt can adjust the front and rear positions along the fourth adjustment hole 22.

[0035] like Figure 1 and Figure 2As shown, two other clamping block mounting brackets 12 are fixed on the base plate 1, and the two clamping block mounting brackets 12 are respectively located on the right side of the first support plate 2 and the second support plate 15. The upper clamping block 13 and the lower clamping block 14 are respectively arranged on the clamping block mounting brackets 12, and the upper clamping block 13 and the lower clamping block 14 can clamp the side of the contact edge plate.

[0036] like Figure 7 As shown, one end of the upper clamping block 13 is connected to the upper adjusting rod 23, and the upper adjusting rod 23 is connected to the clamping block mounting frame 12 through a threaded connection. A T-shaped connector is arranged on the end of the upper adjusting rod 23 facing the upper clamping block 13, and a T-shaped connecting groove is arranged on the end of the upper clamping block 13 facing the upper adjusting rod 23. The T-shaped connector of the upper adjusting rod 23 is fitted and connected in the T-shaped connecting groove of the upper clamping block 13, and the T-shaped connector of the upper adjusting rod 23 can rotate freely in the T-shaped connecting groove of the upper clamping block 13.

[0037] like Figure 8 As shown, one end of the lower clamping block 14 is connected to the lower adjusting rod 24, and the lower adjusting rod 24 is connected to the clamping block mounting frame 12 through threads. A T-shaped connector is arranged on the end of the lower adjusting rod 24 facing the lower clamping block 14, and a T-shaped connecting groove is arranged on the end of the lower clamping block 14 facing the lower adjusting rod 24. The T-shaped connector of the lower adjusting rod 24 is fitted and connected in the T-shaped connecting groove of the lower clamping block 14, and the T-shaped connector of the lower adjusting rod 24 can rotate freely in the T-shaped connecting groove of the lower clamping block 14.

[0038] The working principle of the utility model is: Fig. 9 As shown, the two side edge plates of the guide vane 25 to be processed are placed on the first support plate 2 and the second support plate 15, and the first support block 3 and the second support block 16 are used to support and lift the bottom of the edge plates on both sides of the guide vane 25. Then, the left end faces of the two side edge plates of the guide vane 25 are respectively pressed against the first limit frame 7 and the second limit frame 10, and the upper pressing block 13 and the lower pressing block 14 are adjusted to press the right end faces of the two side edge plates of the guide vane 25. Finally, the first pressing plate 4, the second pressing plate 6, the third pressing plate 8 and the fourth pressing plate 11 are adjusted to press the edge plates of the guide vane 25 to achieve stable clamping of the guide vane 25.

[0039] 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 guide vane basin radial surface grinding fixture, comprising a base plate (1), characterized in that: A first support plate (2) and a second support plate (15) are arranged side by side on the bottom plate (1); two first pressure plates (4) are arranged side by side on one side of the first support plate (2); the two first pressure plates (4) are respectively connected to the bottom plate (1) via first bolts; a pressure plate mounting block (5) is arranged on one side of the second support plate (15); the pressure plate mounting block (5) is fixed on the bottom plate (1); the upper end surface of the pressure plate mounting block (5) is connected to the second pressure plate (6) via second bolts; a first limiting frame (7) and a second limiting frame (10) are respectively fixed on the bottom plate (1); the first limiting frame (7) is located on the left side of the first support plate (2); the first limiting frame (7) is located on the left side of the first limit plate (2); the first limiting frame (7) is located on the right side of the first limit plate (10); A first supporting inclined surface (19) is arranged on the top, and the third pressing plate (8) is connected to the first supporting inclined surface (19) by a third bolt; the second limiting frame (10) is located on the left side of the second supporting plate (15); a second supporting inclined surface (20) is arranged on the second limiting frame (10), and the fourth pressing plate (11) is connected to the second supporting inclined surface (20) by a fourth bolt; two other pressing block mounting frames (12) are fixed on the bottom plate (1), and the two pressing block mounting frames (12) are respectively located on the right side of the first supporting plate (2) and the second supporting plate (15); an upper pressing block (13) and a lower pressing block (14) are arranged on the pressing block mounting frames (12) in an upper and lower manner.

2. A gas turbine guide vane basin side radial surface grinding fixture according to claim 1, characterized in that: First support blocks (3) protruding upwards are respectively provided at both ends of the first support plate (2), and second support blocks (16) protruding upwards are respectively provided at both ends of the second support plate (15), the first support block (3) and the second support block (16) being used to support and hold up the edge plates on both sides of the guide vane.

3. A gas turbine guide vane basin side radial surface grinding fixture according to claim 2, characterized in that: The first pressing plate (4) is an L-shaped structure, one end of the first pressing plate (4) is pressed against the edge plate, the other end of the first pressing plate (4) is in contact with the upper end surface of the bottom plate (1), and a first oblong adjustment hole (17) is provided on the first pressing plate (4) at a position where the first bolt is connected.

4. A gas turbine guide vane basin side radial surface grinding fixture according to claim 3, characterized in that: The second pressing plate (6) is an L-shaped structure, one end of the second pressing plate (6) is pressed against the edge plate, the other end of the second pressing plate (6) is in contact with the upper end surface of the bottom plate (1), and a second oblong adjustment hole (18) is provided on the second pressing plate (6) at a position where the second bolt is connected.

5. A gas turbine guide vane basin side radial surface grinding fixture according to claim 4, characterized in that: Two limiting columns (9) are arranged on the first supporting inclined surface (19).

6. A gas turbine guide vane basin side radial surface grinding fixture according to claim 5, characterized in that: The third pressing plate (8) is an L-shaped structure, one end of the third pressing plate (8) is pressed against the edge plate, the other end of the second pressing plate (6) is in contact with the first supporting inclined surface (19), and a third oblong adjusting hole (21) is provided on the third pressing plate (8) at a position where the third bolt is connected.

7. A gas turbine guide vane basin side radial surface grinding fixture according to claim 6, characterized in that: The fourth pressing plate (11) is an L-shaped structure, one end of the fourth pressing plate (11) is pressed against the edge plate, the other end of the fourth pressing plate (11) is in contact with the second supporting inclined surface (20), and an oblong fourth adjusting hole (22) is provided on the fourth pressing plate (11) at a position where a fourth bolt is connected.

8. A gas turbine guide vane basin side radial surface grinding fixture according to claim 7, characterized in that: One end of the upper clamping block (13) is connected to the upper adjustment rod (23), and the upper adjustment rod (23) is connected to the clamping block mounting frame (12) through a thread. A T-shaped connector is arranged at one end of the upper adjustment rod (23) facing the upper clamping block (13), and a T-shaped connecting groove is arranged at one end of the upper clamping block (13) facing the upper adjustment rod (23). The T-shaped connector of the upper adjustment rod (23) is fitted and connected in the T-shaped connecting groove of the upper clamping block (13), and the T-shaped connector of the upper adjustment rod (23) can rotate freely in the T-shaped connecting groove of the upper clamping block (13).

9. A gas turbine guide vane basin side radial surface grinding fixture according to claim 8, characterized in that: One end of the lower clamping block (14) is connected to the lower adjustment rod (24), and the lower adjustment rod (24) is connected to the clamping block mounting frame (12) through a thread. A T-shaped connector is provided at one end of the lower adjustment rod (24) facing the lower clamping block (14), and a T-shaped connecting groove is provided at one end of the lower clamping block (14) facing the lower adjustment rod (24). The T-shaped connector of the lower adjustment rod (24) is fitted and connected in the T-shaped connecting groove of the lower clamping block (14), and the T-shaped connector of the lower adjustment rod (24) can rotate freely in the T-shaped connecting groove of the lower clamping block (14).

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