Steam seal body chute processing tooling

Abstract

The present invention relates to the technical field of steam seal body processing equipment, and discloses a steam seal body bevel processing tool, including a fixing mechanism, a tilting mechanism and a rotating mechanism; the fixing mechanism includes a chassis, a positioning key is provided at the bottom of the chassis, a column one is welded to one end of the top of the chassis, a pressure cover one is fixed to the top of the column one by screws, a tensioning frame is provided at the end of the top of the chassis away from the column one, the tilting mechanism includes a tray, a transverse axis three, a transverse axis two and a transverse axis one are respectively welded on the tray, a threaded jack is provided at the bottom of the transverse axis three, a threaded rod is provided between the tensioning frame and the transverse axis two, and a turntable is provided on the top of the tray. The steam seal body bevel processing tool can be installed to process exhaust grooves for steam seal bodies within the size range of the turntable, and has strong versatility, solving the problem of "annular bevel processing that is not perpendicular to any three-dimensional vector axis" that cannot be achieved by general-purpose machine tools on the market, and can replace extremely expensive large five-axis machine tools.

Description

Technical Field

[0001] The invention relates to the technical field of steam seal body processing equipment, in particular to a steam seal body inclined groove processing tool. Background Art

[0002] At present, the "exhaust groove" on the "steam seal body", a core component of the turbine body, is a kind of inclined groove that is difficult to process. The method used on the market is to drill the exhaust holes with a "universal radial drill" and then grind it. Another processing method uses a large five-axis machine tool to process this inclined groove, and the equipment cost is extremely high.

[0003] The above processing method has the following display problems:

[0004] 1. Using a "universal radial drill" to drill holes and then grind them, the fan-shaped angle of the bevel relative to the center of the circle cannot be controlled at all and can only be approximate, and the width of the bevel cannot be kept consistent;

[0005] 2. The common gantry milling machines or CNC boring and milling machines with built-in side milling heads on the market cannot realize inclined groove processing. Large five-axis machine tools are not affordable for general companies, and their processing costs are much higher than the "steam seal body" itself.

[0006] Therefore, a steam seal body inclined groove processing tool is proposed to solve the problems mentioned in the above background. Summary of the Invention

[0007] The object of the present invention is to provide a tool for processing the inclined groove of a steam seal body to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a steam seal body chute processing tool, comprising a fixing mechanism, a tilting mechanism and a rotating mechanism;

[0009] The fixing mechanism includes a chassis, a positioning key is provided at the bottom of the chassis, a first column is welded to one end of the top of the chassis, a first gland is fixed to the top of the first column by screws, and a tensioning frame is provided at one end of the top of the chassis away from the first column;

[0010] The tilting mechanism includes a tray, on which a third transverse axis, a second transverse axis, and a first transverse axis are welded, a threaded jack is provided at the bottom of the third transverse axis, a threaded rod is provided between the tensioning frame and the second transverse axis, and a turntable is provided on the top of the tray;

[0011] The cam is secured to the bottom of the cam and is secured to the wheels of the vehicle when the vehicle is in motion.

[0012] A boring machine worktable is set at the bottom of the chassis, and a steam seal body is set at the top of the device. The positioning key of the tooling chassis is inserted into the T-slot of the boring machine worktable to fix the tooling. Then, the threaded rod is removed and the threaded jack is adjusted to make the turntable and pallet of the tooling parallel to the boring machine worktable surface. Next, the steam seal body is placed on the turntable, and the handle is shaken and rotated to adjust the inner circle of the steam seal body to be coaxial with the turntable of the tooling. Finally, the lock pressure plate is used to fix the steam seal body.

[0013] Preferably, the tensioning frame is fixed to the chassis with screws, and the chassis is provided with threaded holes adapted to the screws and equipped with positioning pins.

[0014] Shake the handle to make one of the sector-shaped cutoff points of the exhaust groove of the steam seal body face the main shaft, and use the locking pressure plate to fix the turntable temporarily to prevent it from rotating, and drill a through hole equal to the groove width. Then, drill a through hole at the other sector-shaped cutoff point in the same way. Finally, install the milling cutter on the main shaft, release the locking pressure plate, and by shaking the handle, mill the entire exhaust groove between the two drilled through holes.

[0015] Preferably, the threaded jack is fixedly connected to the top of the chassis, and the output end of the threaded jack is abutted against the horizontal axis.

[0016] By adjusting the threaded jack, the pallet of the tooling and the turntable of the tooling can be tilted to the required angle at the same time, and then the pallet is tightened and fixed by the threaded jack.

[0017] Preferably, the distance sleeve and the deep groove ball bearing are positioned by a second pressure cover, and the second pressure cover is fixed by bolts.

[0018] Preferably, a gasket is provided between the key and the top of the rotary shaft, and the key presses the gasket.

[0019] Preferably, the worm gear is arranged below the turntable, and the worm gear is fixed to the lower end of the rotating shaft through a nut.

[0020] Preferably, two second columns are provided, and the two second columns are welded to the tray. Bearing holes are pre-opened on the two second columns, and the second columns are integrally inserted into the bearing holes.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] First, the device provided by the present invention can be installed and processed into exhaust grooves as long as the steam seal body is within the size range of the turntable, and has strong versatility.

[0023] Secondly, the device provided by the present invention solves the problem of annular bevel groove processing "not perpendicular to any three-dimensional vector axis" that cannot be achieved by general machine tools on the market, and can replace extremely expensive large five-axis machine tools.

[0024] Third, the device provided by the present invention is very convenient to maintain and service, and only requires coating the surface with anti-rust oil when not in use.

[0025] Fourthly, the device provided by the present invention is easy to install. During installation, it is only necessary to hoist the entire tooling onto the workbench of a boring machine (or other horizontal spindle machine tool) and then fix it with bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the side structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the top structure of the present invention;

[0028] Figure 3 Schematic diagram of a common steam seal structure in the prior art of the present invention;

[0029] Figure 4 Schematic diagram of the cross-sectional structure of the worm gear of the present invention;

[0030] Figure 5 It is a schematic side cross-sectional view of the structural lock pressing plate of the present invention.

[0031] Among them: 1. Chassis; 2. Positioning key; 3. Column 1; 4. Gland 1; 5. Tensioning frame; 6. Transverse axis 3; 7. Transverse axis 2; 8. Transverse axis 1; 9. Pallet; 10. Threaded jack; 11. Threaded rod; 12. Turntable; 13. Rotary axis; 14. Gland 2; 15. Distance sleeve; 16. Deep groove ball bearing; 17. Thrust bearing; 18. Gasket; 19. Key; 20. Worm gear; 21. Nut; 23. Column 2; 24. Worm; 25. Thrust roller bearing; 26. Gland 3; 27. Tightening block; 28. Locking plate; 29. Spring; 30. Screw 1; 31. Handle; 32. Screw 2. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-5

[0034] Example 1

[0035] This embodiment is a specific implementation of the steam seal body inclined groove processing tooling

[0036] Steam seal body chute processing tooling, including a fixing mechanism, a tilting mechanism and a rotating mechanism;

[0037] The fixing mechanism includes a chassis 1, a positioning key 2 is provided at the bottom of the chassis 1, a column 3 is welded to one end of the top of the chassis 1, a gland 4 is fixed to the top of the column 3 by screws, and a tensioning frame 5 is provided at the end of the top of the chassis 1 away from the column 3;

[0038] The tilting mechanism includes a tray 9, on which are welded transverse axis 3 6, transverse axis 2 7 and transverse axis 1 8, respectively. A threaded jack 10 is provided at the bottom of transverse axis 3 6, a threaded rod 11 is provided between the tensioning frame 5 and transverse axis 2 7, and a turntable 12 is provided on the top of the tray 9;

[0039] The rotary mechanism includes an inner hole opened in the turntable 12, and the inner hole of the turntable 12 is respectively installed with a distance sleeve 15 and a deep groove ball bearing 16. The bottom of the distance sleeve 15 and the deep groove ball bearing 16 is provided with a pressure cover 14. The bearing hole of the turntable 12 is installed with a rotary shaft 13. The top and bottom ends of the rotary shaft 13 are both installed with a key 19. The turntable 12 is connected to the rotary shaft 13 and installed. The lower end of the rotary shaft 13 is installed with a worm gear 20 through the key 19. A column 23 is welded on the tray 9, and a worm is plugged into the column 23. 24, the worm 24 is screwed with the worm wheel 20, and thrust roller bearings 25 are installed at both ends of the worm 24. A pressure cover 3 26 is provided on the outside of the thrust roller bearing 25, and the pressure cover 3 26 is fastened to the column 23 by screws. A handle 31 is installed at one end of the worm 24, and the handle 31 is fixed to the worm 24 by screw 2 32. The rotary mechanism also includes a locking pressure plate 28, and a spring 29 is provided below the locking pressure plate 28. One end of the spring 29 is inserted into the outside of the turntable 12, and the spring 29 is fixed and tightened by screw 1 30.

[0040] According to the above technical solution, a boring machine worktable is set at the bottom of the chassis 1, and a steam seal body is set at the top of the device. The positioning key 2 of the tooling chassis 1 is inserted into the T-slot of the boring machine worktable to fix the tooling. Then, the threaded rod 11 is removed and the threaded jack 10 is adjusted so that the tooling turntable 12 and the tray 9 are parallel to the boring machine worktable. Next, the steam seal body is placed on the turntable 12 and the handle 31 is shaken and rotated to calibrate the inner circle of the steam seal body and the turntable 12 of the tooling to be coaxial. Finally, the locking plate 28 is used to fix the steam seal body.

[0041] Shake the handle 31 to make the positioning point of one of the fan-shaped cutoff points of the exhaust groove of the steam seal body marked in advance face the main shaft, and fix the turntable 12 with the locking pressure plate 28 to temporarily prevent it from rotating, and drill a through hole equal to the groove width. After that, drill a through hole at the other fan-shaped cutoff point in the same way. Finally, install the milling cutter on the main shaft, release the locking pressure plate 28, and mill the entire exhaust groove between the two drilled through holes by shaking the handle 31.

[0042] Specifically, the tensioning frame 5 is fixed to the chassis 1 with screws. The chassis 1 is provided with threaded holes adapted to the screws and is also equipped with positioning pins.

[0043] Specifically, the threaded jack 10 is fixedly connected to the top of the chassis 1 , and the output end of the threaded jack 10 is against the horizontal axis 3 6 .

[0044] Through the above technical solution, by adjusting the threaded jack 10 , the pallet 9 of the tooling and the turntable 12 of the tooling are tilted to the required angle at the same time, and then the pallet 9 is tightened and fixed by the threaded jack 10 .

[0045] Specifically, the distance sleeve 15 and the deep groove ball bearing 16 are positioned by the second pressure cover 14, and the second pressure cover 14 is fixed by bolts.

[0046] Specifically, a gasket 18 is provided between the key 19 and the top of the rotary shaft 13 , and the key 19 is provided to press the gasket 18 .

[0047] Specifically, the worm gear 20 is disposed below the turntable 12 , and is fixed to the lower end of the rotary shaft 13 via a nut 21 .

[0048] Specifically, two second columns 23 are provided, and the two second columns 23 are welded to the tray 9 . Bearing holes are pre-opened on the two second columns 23 , and the second columns 23 are integrally inserted into the bearing holes.

[0049] Example 2

[0050] This embodiment is a specific implementation of the fixing mechanism of the steam seal body inclined groove processing tooling

[0051] The fixing mechanism of the steam seal body chute processing tooling includes a chassis 1, a positioning key 2 is provided at the bottom of the chassis 1, a column 3 is welded to the top end of the chassis 1, a pressure cover 4 is fixed to the top of the column 3 by screws, and a tensioning frame 5 is provided at the end of the top of the chassis 1 away from the column 3.

[0052] Example 3

[0053] This embodiment is a specific implementation of the tilting mechanism of the steam seal body inclined groove processing tool

[0054] The tilting mechanism of the steam seal body chute processing tooling includes a pallet 9, on which transverse axis three 6, transverse axis two 7 and transverse axis one 8 are welded respectively. A threaded jack 10 is provided at the bottom of transverse axis three 6, a threaded rod 11 is provided between the tensioning frame 5 and transverse axis two 7, and a turntable 12 is provided on the top of the pallet 9.

[0055] Example 4

[0056] This embodiment is a specific implementation of the rotary mechanism of the steam seal body inclined groove processing tooling

[0057] The rotary mechanism of the steam seal body chute processing tooling includes an inner hole opened in the turntable 12, a distance sleeve 15 and a deep groove ball bearing 16 are installed in the inner hole of the turntable 12 respectively, and a pressure cover 14 is provided at the bottom of the distance sleeve 15 and the deep groove ball bearing 16. A rotary shaft 13 is installed in the bearing hole of the turntable 12, and a key 19 is installed at the top and bottom of the rotary shaft 13. The turntable 12 is connected to the rotary shaft 13 and installed. A worm gear 20 is installed at the lower end of the rotary shaft 13 through the key 19. A column 23 is welded on the tray 9. The column 22 3 is plugged into a worm 24, which is screwed with the worm wheel 20. Thrust roller bearings 25 are installed at both ends of the worm 24. A pressure cover 3 is provided on the outside of the thrust roller bearing 25. The pressure cover 3 26 is fastened to the column 23 by screws. A handle 31 is installed at one end of the worm 24, and the handle 31 is fixed to the worm 24 by screws 2. The rotary mechanism also includes a locking pressure plate 28, and a spring 29 is provided below the locking pressure plate 28. One end of the spring 29 is inserted into the outside of the turntable 12 and is fixed tightly by screws 1 30.

[0058] Example 5

[0059] This embodiment is a specific implementation of an alternative solution for the steam seal body inclined groove processing tooling

[0060] An alternative solution to the steam seal body inclined groove processing tooling is to increase the size and widen the size of all parts in the attached figure so that it can be suitable for larger steam seal bodies. In theory, as long as the tooling can be installed on a larger type of equipment with boring and milling functions, this tooling can cover the processing of all steam seal bodies with inclined exhaust grooves in the steam turbine.

[0061] Example 6

[0062] This embodiment is a specific implementation of an alternative solution for the steam seal body inclined groove processing tooling

[0063] An alternative solution to the steam seal body chute processing tool is to replace the handle 31 in the figure with a "reduction motor", and the "reduction motor" is further equipped with a "start and end point stop" switch to process the steam seal body in a semi-automatic manner.

[0064] Working principle: This tool mainly has a tilting mechanism that can be adjusted to any angle. Its own rotation mechanism is added to this tilting mechanism, so that any coordinate that is "not perpendicular to any three-dimensional vector axis" can be achieved.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Steam seal body chute processing tooling, characterized by: It includes a fixing mechanism, a tilting mechanism and a rotating mechanism; The fixing mechanism comprises a chassis (1), a positioning key (2) is provided at the bottom of the chassis (1), a column (3) is welded to one end of the top of the chassis (1), a pressure cover (4) is fixed to the top of the column (3) by screws, and a tensioning frame (5) is provided at one end of the top of the chassis (1) away from the column (3); The tilting mechanism includes a tray (9), on which a third transverse axis (6), a second transverse axis (7) and a first transverse axis (8) are welded, respectively; a threaded jack (10) is provided at the bottom of the third transverse axis (6); a threaded rod (11) is provided between the tensioning frame (5) and the second transverse axis (7); and a turntable (12) is provided at the top of the tray (9); The rotary mechanism includes an inner hole opened in the turntable (12), a distance sleeve (15) and a deep groove ball bearing (16) are installed in the inner hole of the turntable (12), and a pressure cover (14) is provided at the bottom of the distance sleeve (15) and the deep groove ball bearing (16). A rotary shaft (13) is installed in the bearing hole of the turntable (12), and a key (19) is installed at the top and bottom ends of the rotary shaft (13). The turntable (12) is connected and installed with the rotary shaft (13), and a worm gear (20) is installed at the bottom end of the rotary shaft (13) through the key (19). A column (23) is welded on the tray (9), and a worm (24) is plugged into the column (23). ), the worm (24) is screwed with the worm wheel (20), thrust roller bearings (25) are installed at both ends of the worm (24), a pressure cover three (26) is provided on the outside of the thrust roller bearing (25), the pressure cover three (26) is fastened to the column two (23) by screws, a handle (31) is installed at one end of the worm (24), the handle (31) is fixed to the worm (24) by screw two (32), the rotary mechanism also includes a locking pressure plate (28), a spring (29) is provided below the locking pressure plate (28), one end of the spring (29) is inserted into the outside of the turntable (12), and the spring (29) is fixed and tightened by screw one (30); The tensioning frame (5) is fixed to the chassis (1) with screws, and the chassis (1) is provided with threaded holes adapted to the screws and equipped with positioning pins; The threaded jack (10) is fixedly connected to the top of the chassis (1), and the output end of the threaded jack (10) is against the horizontal axis three (6).

2. The steam seal body inclined groove processing tool according to claim 1, characterized in that: The distance sleeve (15) and the deep groove ball bearing (16) are positioned by a second pressure cover (14), and the second pressure cover (14) is fixed by bolts.

3. The steam seal body inclined groove processing tool according to claim 1, characterized in that: A gasket (18) is provided between the key (19) and the top of the rotary shaft (13), and the key (19) is provided to press the gasket (18).

4. The steam seal body inclined groove processing tool according to claim 1, characterized in that: The worm wheel (20) is arranged below the turntable (12), and the worm wheel (20) is fixed to the lower end of the rotating shaft (13) through a nut (21).

5. The steam seal body inclined groove processing tool according to claim 1, characterized in that: Two of the second columns (23) are provided, and the two second columns (23) are welded to the tray (9). Bearing holes are pre-opened on the two second columns (23), and the second columns (23) are integrally inserted into the bearing holes.

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