CN113478262A - Turbine blade sealing tooth machining clamp and clamping method thereof - Google Patents
Turbine blade sealing tooth machining clamp and clamping method thereof Download PDFInfo
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- CN113478262A CN113478262A CN202110821442.2A CN202110821442A CN113478262A CN 113478262 A CN113478262 A CN 113478262A CN 202110821442 A CN202110821442 A CN 202110821442A CN 113478262 A CN113478262 A CN 113478262A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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Abstract
The invention discloses a turbine blade sealing tooth machining clamp and a clamping method thereof, and belongs to the technical field of aero-engines. A turbine blade obturating tooth machining fixture comprises: the device comprises a base, a tenon clamping component, a blade tip clamping component and a blade crown clamping component; tenon centre gripping subassembly is used for centre gripping turbine blade's tenon position, includes: the positioning ball, the tenon support, the tooth holder and the tooth block; the blade tip clamping assembly is used for clamping a blade tip part close to a blade crown on the turbine blade; the tip shroud holding assembly is for holding a tip shroud portion of a turbine blade. According to the invention, the two ends of the turbine blade are respectively clamped, and the blade tip part close to the sealing tooth is fixed, so that the system rigidity of the workpiece and the fixture is increased, and the high reject ratio caused by vibration and deformation generated during the processing of the sealing tooth is avoided.
Description
Technical Field
The invention relates to the technical field of aero-engines, in particular to a turbine blade sealing tooth machining clamp and a clamping method thereof.
Background
The turbine blade is used as a key part of an aeroengine, directly influences the performance and safety of the engine, and has strict requirements on the size and quality of the blade. A nickel-based high-temperature alloy investment precision casting blank is adopted for a certain type of aeroengine turbine blade, and a complex blade shroud part needs to be machined. The blade body profile of the low-pressure turbine blade is ultrathin, slender and is a difficult-to-machine structure with a special-shaped blade shroud. The special-shaped sealing tooth is of an arc three-tooth thin-wall special-shaped structure, and the minimum thickness of the labyrinth tooth is 1.0 mm. The blade torsion is large, the blade shroud torsion angle is 9 degrees, and the special-shaped sealing tooth is processed into typical slender, thin-wall and cantilever part processing. How to realize the high-precision, high-efficiency and pollution-free processing of the ultrathin, slender and cantilever blade special-shaped sealing teeth is a technical problem which needs to be solved urgently in the industry. The machining of the blade crown special-shaped sealing teeth belongs to the cantilever machining of slender thin-wall parts, machining vibration and deformation are easy to generate, so that the reject ratio is high, and the problem that the machining of the turbine blade sealing teeth is easy to generate vibration and deformation exists in the prior art.
Disclosure of Invention
The invention aims to provide a turbine blade sealing tooth machining clamp and a clamping method thereof, and aims to solve the problem that the existing turbine blade sealing tooth machining is easy to generate vibration and deformation.
The technical scheme for solving the technical problems is as follows:
the utility model provides a turbine blade tooth that obturages adds clamping apparatus which characterized in that includes: the device comprises a base, and a tenon clamping component, a blade tip clamping component and a blade shroud clamping component which are respectively arranged on the base;
tenon centre gripping subassembly is used for centre gripping turbine blade's tenon position, includes: the positioning ball and the tenon support are respectively arranged on the base, the tooth holder is connected with the tenon support, and the tooth block is matched with the tooth holder;
the blade tip clamping assembly is used for clamping a blade tip part close to a blade crown on the turbine blade;
the tip shroud holding assembly is for holding a tip shroud portion of a turbine blade.
The tenon clamping component supports the bottom of the tenon part of the turbine blade through the positioning ball, and the tenon is positioned in the tenon clamping cavity through the tooth seat and the tooth inclined plane on the tooth block which are attached to the tenon teeth, so that the tenon part far away from the sealing tooth is clamped and fixed. The blade tip clamping assembly is used for clamping a blade tip part close to the blade crown on the blade body, and the blade crown clamping assembly is used for clamping a blade crown part where the sealing teeth are located. The two ends of the turbine blade are clamped respectively, and the blade tip part close to the sealing tooth is fixed, so that the system rigidity of the workpiece and the fixture is increased, and high reject ratio caused by vibration and deformation generated during machining of the sealing tooth is avoided.
Furthermore, the blade tip clamping assembly comprises a guide support connected with the base, a floating support pin arranged on the guide support, and a basin surface movable positioning block and a back surface movable positioning block which are respectively in sliding fit with the guide support, wherein the ends, close to each other, of the basin surface movable positioning block and the back surface movable positioning block are respectively arc-shaped.
The floating support pin can support the bottom of the blade tip, the basin surface movable positioning block and the back surface movable positioning block are matched, and the ends, close to each other, of the basin surface movable positioning block and the back surface movable positioning block are respectively in an arc shape and are used for being respectively contacted with two surfaces of the blade tip so as to clamp and position the blade tip.
Furthermore, a spring is arranged at the bottom of the floating support pin, a floating inclined surface is arranged on the floating support pin, a screw hole is formed in the guide support, and the screw hole is connected with a spiral ejector pin which is in contact with the floating inclined surface.
The spring can provide elastic support for the floating support pin, and the spiral ejector pin can be contacted with different positions of the floating inclined plane by adjusting the meshing depth of the screw hole and the spiral ejector pin, so that the support height of the floating support pin is adjusted, and the position height of the blade tip is convenient to finely adjust.
Furthermore, the guide support is provided with a compression screw which is respectively contacted with the basin surface movable positioning block and the back surface movable positioning block.
The invention is convenient to adjust the gap between the basin surface movable positioning block and the back surface movable positioning block by arranging the compression screw, thereby adjusting the clamping force on the two surfaces of the blade tip.
Further, the blade shroud clamping assembly comprises a blade basin positioning push block and a blade back positioning push block which are respectively connected with the guide support, and the blade basin positioning push block and the blade back positioning push block are respectively in contact with two sides of the blade shroud of the turbine blade.
The blade shroud clamping assembly clamps two sides of a blade shroud through the blade basin positioning push block and the blade back positioning push block respectively, so that the blade shroud is clamped and positioned.
Furthermore, the surfaces of the blade basin positioning push block and the blade back positioning push block, which are close to each other, are respectively in a sawtooth shape matched with the side surface of the blade shroud.
The clamping surfaces of the leaf basin positioning push block and the leaf back positioning push block are respectively in a sawtooth shape and are matched with the shape of the side surface of the leaf shroud, so that the leaf shroud can be conveniently clamped from multiple angles, and the vibration during processing is reduced.
Furthermore, the leaf basin positioning push block and the leaf back positioning push block are respectively provided with an oval hole and an adjusting screw, and the adjusting screw penetrates through the oval hole and is connected with the guide support.
According to the invention, the oval hole is arranged to facilitate horizontal movement of the blade basin positioning push block and the blade back positioning push block, so that the turbine blade is convenient to assemble and disassemble, and the clamping force of the blade crown part can be adjusted.
Furthermore, the tooth seat and the tooth block are connected through a double-end stud, and a nut with a shoulder which is contacted with the tooth block is further connected onto the double-end stud.
The invention can extrude the tooth block by moving the nut with the shoulder, thereby adjusting the gap between the tooth block and the tooth seat and facilitating the assembly and disassembly of the turbine blade.
Furthermore, a positioning circular groove is arranged on the back surface of the base.
The base is placed on the workbench through the positioning circular groove, so that the whole fixture is conveniently connected and fixed.
The clamping method of the turbine blade sealing tooth machining clamp comprises the following steps:
s1: placing the tenon of the turbine blade between the tooth holder and the tooth block;
s2: screwing the nut with the shoulder to enable the tooth block to be close to the tooth seat, and enabling the two teeth to be in contact with the two sides of the tenon respectively;
s3: and the bottom surface of the tenon is contacted with the positioning ball;
s4: attaching the blade tip of the turbine blade to the floating support pin, and screwing the spiral ejector pin;
s5: horizontally pushing the blade basin positioning push block and the blade back positioning push block to be attached to the blade crown sawtooth surface of the turbine blade and tightly driving an adjusting screw;
s6: the basin surface movable positioning block is naturally contacted with the blade tip basin surface of the turbine blade, and the back surface movable positioning block is driven to be contacted with the back surface of the blade tip through the compression screw 35.
S7: fixing the base on the workbench through the positioning circular groove;
s8: and measuring the end face of the blade crown to ensure that the reading difference of the dial indicator is not more than 0.02mm, and then carrying out sealed tooth grinding processing.
According to the invention, the turbine blade is stably fixed on the machining fixture of the obturating tooth through a specific clamping sequence, the tenon clamping component is used for fixing the far end of the machined part, the blade tip clamping component and the blade crown clamping component are used for effectively clamping the near end of the machined part, and the fixing effect is confirmed through the dial indicator, so that the problem of high reject ratio caused by vibration and deformation in the machining process of the obturating tooth is solved.
The invention has the following beneficial effects:
(1) the tenon clamping component supports the bottom of the tenon part of the turbine blade through the positioning ball, and the tenon is positioned in the tenon clamping cavity through the tooth seat and the tooth inclined plane on the tooth block which are attached to the tenon teeth, so that the tenon part far away from the sealing tooth is clamped and fixed. The blade tip clamping assembly is used for clamping a blade tip part close to the blade crown on the blade body, and the blade crown clamping assembly is used for clamping a blade crown part where the sealing teeth are located. The two ends of the turbine blade are clamped respectively, and the blade tip part close to the sealing tooth is fixed, so that the system rigidity of the workpiece and the fixture is increased, and the phenomenon that the sealing tooth is vibrated and deformed during machining is avoided, and the reject ratio is high.
(2) According to the invention, the turbine blade is stably fixed on the machining fixture of the obturating tooth through a specific clamping sequence, the tenon clamping component is used for fixing the far end of the machined part, the blade tip clamping component and the blade crown clamping component are used for effectively clamping the near end of the machined part, and the fixing effect is confirmed through the dial indicator, so that the problem of high reject ratio caused by vibration and deformation in the machining process of the obturating tooth is solved.
Drawings
FIG. 1 is a schematic structural view of a turbine blade sealing tooth machining fixture of the present invention;
FIG. 2 is a front view of the turbine blade sealing tooth machining fixture of the present invention;
FIG. 3 is a schematic view of the position of the positioning groove according to the present invention;
FIG. 4 is a top view of the turbine blade seal tooth machining fixture of the present invention;
FIG. 5 is a cross-sectional view of the position of the floating support pin of the present invention;
FIG. 6 is a schematic view of the operation of the turbine blade sealing tooth machining fixture of the present invention.
In the figure: 10-a base; 11-positioning the circular groove; 20-a tenon clamping assembly; 21-a positioning ball; 22-tenon seat; 23-a tooth socket; 24-a tooth block; 25-tooth slope; 26-a tenon clamping cavity; 27-a shoulder nut; 28-a stud; 30-a tip clamping assembly; 31-a guide support; 32-a floating support pin; 33-a basin surface movable positioning block; 34-a back movable positioning block; 35-a spring; 36-a floating ramp; 37-screw holes; 38-a screw knock pin; 39-compression screws; 40-a tip shroud holding assembly; 41-leaf basin positioning push block; 42-leaf back positioning push block; 43-elliptical hole; 44-adjusting screw.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1, a turbine blade sealing tooth machining clamp and a clamping method thereof comprise the following steps: a base 10, and a tenon clamping assembly 20, a tip clamping assembly 30 and a shroud clamping assembly 40 respectively disposed on the base 10.
Referring to fig. 1 and 4, the base 10 is plate-shaped, and a plurality of screw holes and pin holes are formed in the base 10 to facilitate connection and fixation of each component. And still seted up location circular slot 11 in the bottom surface of base 10, seted up a plurality of fixed orificess in the location circular slot 11, accessible location circular slot 11 conveniently fixes whole anchor clamps on table surface.
Referring to fig. 1 and 2, the tenon clamping assembly 20 is provided at an end portion of the base 10, and includes a ball 21 and a tenon seat 22 directly coupled to the base 10, a tooth socket 23 coupled to the tenon seat 22, and a tooth block 24 engaged with the tooth socket 23. The positioning ball 21 has a spherical top and a tapered cylindrical bottom, and can contact and support the bottom surface of the tenon of the turbine blade. The tenon seat 22 is in an L shape, the bottom of the tenon seat is a short side and is connected and fixed with the base 10, and the top of the tenon seat is a long side and is used for connecting the fixed tooth seat 23. The tooth socket 23 and the tooth block 24 are respectively connected to a stud 28, which stud 28 is also connected to the tenon holder 22. Tooth inclined planes 25 are respectively arranged on the surfaces, close to the tooth seat 23 and the tooth block 24, of the tooth seat, and the tooth inclined planes 25 are respectively matched with tenon teeth on two sides of the tenon position, so that the tenon can be conveniently clamped. Still be connected with on the stud 28 and take shoulder nut 27, take shoulder nut 27 and tooth piece 24 to keep away from the one side contact of tooth seat 23 to the convenience is spacing to tooth piece 24, avoids tooth piece 24 to remove to the direction of keeping away from tooth seat 23.
Referring to fig. 1 and 4, the tip holding assembly 30 is located at an end of the base 10 away from the tenon holding assembly 20, and the tip holding assembly 30 is used for holding and fixing a tip portion of the blade body of the turbine blade close to the sealing tooth. Tip clamp assembly 30 includes: a guide support 31 connected with the base 10, a floating support pin 32 contacted with the bottom surface of the blade tip, and a basin surface movable positioning block 33 and a back surface movable positioning block 34 respectively matched with the guide support 31 in a sliding way. The guide support 31 is in an inclined 'U' shape, the opening of the guide support is inclined upwards, and through holes are respectively formed in two side edges of the 'U' shaped guide support 31, so that a basin surface movable positioning block 33 and a back surface movable positioning block 34 are conveniently arranged. The ends, close to each other, of the basin surface movable positioning block 33 and the back surface movable positioning block 34 are respectively in an arc shape matched with the arc surface of the blade tip, the inner side surface of the arc shape of the blade tip is in contact with the basin surface movable positioning block 33, and the outer side surface of the arc shape of the blade tip is in contact with the back surface movable positioning block 34. The guide support 31 is further provided with a compression screw 39 which is respectively contacted with the basin surface movable positioning block 33 and the back surface movable positioning block 34, so that the gap between the basin surface movable positioning block 33 and the back surface movable positioning block 34 can be conveniently adjusted, and the clamping force on the two surfaces of the blade tip can be adjusted.
Referring to fig. 5, the bottom of the floating support pin 32 is further provided with a spring 35, the spring 35 can provide a certain elastic support force to the floating support pin 32, and the bottom of the spring 35 limits the position of the floating support pin through a plug. The floating support pin 32 is further provided with a floating inclined surface 36, the guide support 31 is provided with a screw hole 37 communicated with a hole for placing the floating support pin 32, the screw hole 37 is internally threaded with a screw ejector pin 38, the end part of the screw ejector pin 38 is abutted against the floating inclined surface 36, and the height of the floating support pin 32 can be adjusted by adjusting the matching between the screw ejector pin 38 and the floating inclined surface 36. The helical knock pin 38 may be integral or composed of a screw and a knock pin.
Referring to fig. 1 and 6, the tip shroud holding assembly 40 is used for holding the tip shroud portion of the turbine blade, and is disposed at an end of the base 10 away from the tenon holding assembly 20, and includes: the blade basin positioning push block 41 and the blade back positioning push block 42 which are respectively connected with the guide support 31 have the mutually close surfaces in a sawtooth shape, so that the blade basin positioning push block and the blade back positioning push block can be conveniently contacted with two sides of a sawtooth-shaped blade crown.
S1: the tenon of the turbine blade is placed between the tooth socket 23 and the tooth block 24;
s2: screwing the nut 27 with the shoulder to enable the tooth block 24 to be close to the tooth seat 23, and enabling the two tooth inclined surfaces 25 to be respectively contacted with the two sides of the tenon;
s3: and the bottom surface of the tenon is contacted with the positioning ball 21;
s4: fitting the tip of the turbine blade to the floating support pin 32 and tightening the screw knock pin 38;
s5: horizontally pushing the blade basin positioning push block 41 and the blade back positioning push block 42 to be attached to the blade crown sawtooth surface of the turbine blade and driving the blade shroud sawtooth surface into an adjusting screw 44;
s6: the basin surface movable positioning block 33 is naturally contacted with the blade tip basin surface of the turbine blade, and the back surface movable positioning block 34 is driven to be contacted with the back surface of the blade tip through the compression screw 39.
S7: fixing a base 10 on a workbench through a positioning circular groove 11;
s8: and measuring the end face of the blade crown to ensure that the reading difference of the dial indicator is not more than 0.02mm, and then carrying out sealed tooth grinding processing.
According to the invention, the turbine blade is stably fixed on the machining fixture of the obturating tooth through a specific clamping sequence, the tenon clamping component 20 is used for fixing the far end of the machined part, the blade tip clamping component 30 and the blade crown clamping component 40 are used for effectively clamping the near end of the machined part, and the fixing effect is confirmed through the dial indicator, so that the problem of high reject ratio caused by vibration and deformation in the machining process of the obturating tooth is solved.
The tenon clamping component 20 supports the bottom of the tenon part of the turbine blade through the positioning ball 21, and is attached to the tenon teeth through the tooth seat 23 and the tooth inclined plane 25 on the tooth block 24, so that the tenon is positioned in the tenon clamping cavity 26, and the tenon part far away from the sealing teeth is clamped and fixed. The blade tip clamping assembly 30 is used for clamping the blade tip part close to the blade crown on the blade body, and the blade crown clamping assembly 40 is used for clamping the blade crown part where the sealing teeth are located. The two ends of the turbine blade are clamped respectively, and the blade tip part close to the sealing tooth is fixed, so that the system rigidity of the workpiece and the fixture is increased, and high reject ratio caused by vibration and deformation generated during machining of the sealing tooth is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a turbine blade tooth that obturages adds clamping apparatus which characterized in that includes: the blade tip clamping device comprises a base (10), and a tenon clamping component (20), a blade tip clamping component (30) and a blade crown clamping component (40) which are respectively arranged on the base (10);
the tenon clamping component (20) is used for clamping the tenon part of the turbine blade and comprises: the tenon clamping device comprises a positioning ball (21), a tenon support (22), a tooth holder (23) and a tooth block (24), wherein the positioning ball and the tenon support (22) are respectively arranged on the base (10), the tooth holder (23) is connected with the tenon support (22), the tooth block (24) is matched with the tooth holder (23), tooth inclined planes (25) matched with tenon teeth are respectively arranged on the tooth holder (23) and the tooth block (24), and a tenon clamping cavity (26) is formed between the two tooth inclined planes (25);
the tip clamping assembly (30) is used for clamping a tip part close to a tip shroud on the turbine blade;
the shroud clamping assembly (40) is for clamping a shroud portion of a turbine blade.
2. The turbine blade sealing tooth machining clamp according to claim 1, wherein the blade tip clamping assembly (30) comprises a guide support (31) connected with the base (10), a floating support pin (32) arranged on the guide support (31), and a basin surface movable positioning block (33) and a back surface movable positioning block (34) which are respectively in sliding fit with the guide support (31), wherein the ends, close to each other, of the basin surface movable positioning block (33) and the back surface movable positioning block (34) are respectively arc-shaped.
3. The turbine blade sealing tooth machining clamp as claimed in claim 2, wherein a spring (35) is arranged at the bottom of the floating support pin (32), a floating inclined surface (36) is arranged on the floating support pin (32), a screw hole (37) is formed in the guide support (31), and the screw hole (37) is connected with a spiral ejector pin (38) which is in contact with the floating inclined surface (36).
4. The turbine blade sealing tooth machining fixture according to claim 3, wherein the guide support (31) is provided with a compression screw (39) which is in contact with the basin-surface movable positioning block (33) and the back-surface movable positioning block (34) respectively.
5. The turbine blade seal tooth machining fixture according to claim 4, wherein the shroud clamping assembly (40) comprises a blade basin positioning pushing block (41) and a blade back positioning pushing block (42) which are respectively connected with the guide support (31), and the blade basin positioning pushing block (41) and the blade back positioning pushing block (42) are respectively in contact with two sides of a shroud of a turbine blade.
6. The turbine blade sealing tooth machining fixture and the clamping method thereof as claimed in claim 5, wherein the surfaces of the blade basin positioning push block (41) and the blade back positioning push block (42) close to each other are respectively in a sawtooth shape matched with the side surface of the blade shroud.
7. The turbine blade sealing tooth machining clamp and the clamping method thereof as claimed in claim 6, wherein the blade basin positioning push block (41) and the blade back positioning push block (42) are respectively provided with an elliptical hole (43) and an adjusting screw (44), and the adjusting screw (44) penetrates through the elliptical hole (43) and is connected with the guide support (31).
8. The turbine blade sealing tooth machining clamp and the clamping method thereof as claimed in claim 7, wherein the tooth holder (23) and the tooth block (24) are connected through a stud (28), and a shoulder nut (28) in contact with the tooth block (24) is further connected to the stud (27).
9. The turbine blade sealing tooth machining clamp and the clamping method thereof as claimed in claim 8, wherein a positioning circular groove (11) is formed in one surface, away from the tenon clamping component (20), of the base (10).
10. A clamping method of the turbine blade sealing tooth machining clamp is characterized in that the turbine blade sealing tooth machining clamp of claim 9 is adopted, and the clamping method comprises the following steps:
s1: -placing the tenon of a turbine blade between the block (23) and the block (24);
s2: screwing the shouldered nut (27) to enable the tooth block (24) to be close to the tooth seat (23), and enabling the two tooth inclined planes (25) to be respectively contacted with two sides of the tenon;
s3: and the bottom surface of the tenon is contacted with the positioning ball (21);
s4: fitting the tip of the turbine blade to the floating support pin (32) and tightening the screw knock pin (38);
s5: horizontally pushing the blade basin positioning push block (41) and the blade back positioning push block (42) to be attached to the blade crown sawtooth surface of the turbine blade and tightly driving the adjusting screw (44);
s6: the basin surface movable positioning block (33) is naturally contacted with the blade tip basin surface of the turbine blade, and the back surface movable positioning block (34) is driven to be contacted with the back surface of the blade tip through the compression screw (39);
s7: fixing the base (10) on a workbench through the positioning circular groove (11);
s8: and measuring the end face of the blade crown to ensure that the reading difference of the dial indicator is not more than 0.02mm, and then carrying out sealed tooth grinding processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821442.2A CN113478262A (en) | 2021-07-20 | 2021-07-20 | Turbine blade sealing tooth machining clamp and clamping method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821442.2A CN113478262A (en) | 2021-07-20 | 2021-07-20 | Turbine blade sealing tooth machining clamp and clamping method thereof |
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| CN113478262A true CN113478262A (en) | 2021-10-08 |
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| CN202110821442.2A Pending CN113478262A (en) | 2021-07-20 | 2021-07-20 | Turbine blade sealing tooth machining clamp and clamping method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114102186A (en) * | 2021-12-08 | 2022-03-01 | 中国航发南方工业有限公司 | Machining clamp for turbine blade tenon tooth |
| CN114770163A (en) * | 2022-04-24 | 2022-07-22 | 德阳六合能源材料有限公司 | Fastening mechanism and method for turbine disc blade of aircraft engine |
| CN115056170A (en) * | 2022-06-07 | 2022-09-16 | 中国航发航空科技股份有限公司 | Bow-shaped clamp for integrally assembling engine turbine blade |
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| CN114102186A (en) * | 2021-12-08 | 2022-03-01 | 中国航发南方工业有限公司 | Machining clamp for turbine blade tenon tooth |
| CN114102186B (en) * | 2021-12-08 | 2022-12-09 | 中国航发南方工业有限公司 | Machining clamp for turbine blade tenon tooth |
| CN114770163A (en) * | 2022-04-24 | 2022-07-22 | 德阳六合能源材料有限公司 | Fastening mechanism and method for turbine disc blade of aircraft engine |
| CN114770163B (en) * | 2022-04-24 | 2024-06-14 | 德阳六合能源材料有限公司 | Turbine disc blade fastening mechanism and method for aero-engine |
| CN115056170A (en) * | 2022-06-07 | 2022-09-16 | 中国航发航空科技股份有限公司 | Bow-shaped clamp for integrally assembling engine turbine blade |
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Application publication date: 20211008 |