Processing method for sealing groove of guide vane basin of gas turbine and aircraft engine

Abstract

The present invention belongs to the field of mechanical processing, and specifically relates to a method for processing the basin-shaped sealing groove of the guide vane of a gas turbine and an aircraft engine. The technical scheme is as follows: 1) designing and manufacturing an upper edge plate sealing groove electrode and a lower edge plate sealing groove electrode; 2) designing and manufacturing an electrode fixture; the electrode fixture is provided with an upper edge plate electrode chuck and a lower edge plate electrode chuck; 3) loading the upper edge plate sealing groove electrode into the upper edge plate electrode chuck, and loading the lower edge plate sealing groove electrode into the lower edge plate electrode chuck; 4) installing the blade fixture on the processing table of a three-axis forming machine, clamping the blade to be processed on the blade fixture, and connecting the machine tool connection block of the electrode fixture to the tool holder of the three-axis forming machine; 5) debugging the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode to the accurate position, and implementing basin-shaped sealing groove processing. The present invention reduces the manufacturing cost of the electrode, reduces the number of debugging, and the debugging and processing time, and improves the production efficiency by integrated design and manufacturing of electrodes.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing, and in particular relates to a method for processing a basin-shaped sealing groove of a guide vane of a gas turbine and an aero-engine. Background Art

[0002] The guide vanes of gas turbines and aircraft engines, whose basin-shaped sealing grooves include basin-upper edge plate sealing grooves and basin-lower edge plate sealing grooves; as shown in the attached Fig.10 As shown, the sealing groove of the upper edge plate of the basin includes a transverse sealing groove on the air inlet side of the upper edge plate, a longitudinal sealing groove on the upper edge plate, and a transverse sealing groove on the exhaust side of the upper edge plate, which are connected in sequence; the sealing groove of the lower edge plate of the basin includes a transverse sealing groove on the air inlet side of the lower edge plate, a longitudinal sealing groove on the lower edge plate, and a transverse sealing groove on the exhaust side of the lower edge plate, which are connected in sequence.

[0003] Since the guide vane basin sealing groove is deep and narrow, it is necessary to use electric spark machining. Fig.11 As shown, the existing EDM forming electrode includes a clamping seat and a forming head. The forming electrode is a step-type and can only be manufactured by milling, which has a high manufacturing cost. Six sets of forming electrodes are required during processing, including: upper edge plate air intake side transverse sealing groove electrode, upper edge plate longitudinal sealing groove electrode, upper edge plate exhaust side transverse sealing groove electrode, lower edge plate air intake side transverse sealing groove electrode, lower edge plate longitudinal sealing groove electrode and lower edge plate exhaust side transverse sealing groove electrode; the forming head of each forming electrode has different shapes and sizes, and all need to be designed and manufactured, and the design and manufacturing cycle is long.

[0004] The guide vane basin sealing groove is processed using a three-axis forming machine, which requires six processes, including: process 1, processing the transverse sealing groove on the air intake side of the upper edge plate; process 2, processing the longitudinal sealing groove on the upper edge plate; process 3, processing the transverse sealing groove on the exhaust side of the upper edge plate; process 4, processing the transverse sealing groove on the air intake side of the lower edge plate; process 5, processing the longitudinal sealing groove on the lower edge plate; process 6, processing the transverse sealing groove on the exhaust side of the lower edge plate. During the processing, since the forming electrode is a consumable, it needs to be replaced and clamped many times, the process is cumbersome, the forming electrode needs to be debugged many times and the debugging time is long, and each replacement of the forming electrode requires re-debugging, which reduces production efficiency. Summary of the invention

[0005] The invention provides a method for processing a gas turbine and an aircraft engine guide vane basin sealing groove, which reduces the electrode manufacturing cost, reduces the number of debugging times and the debugging and processing time, and improves production efficiency through integrated design and manufacturing of electrodes.

[0006] The technical solution of the present invention is as follows:

[0007] A method for processing a gas turbine and an aircraft engine guide vane basin sealing groove comprises the following steps:

[0008] 1) Design and manufacture the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode; the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are designed and manufactured by integrated straight-through type; the upper edge plate air intake side transverse sealing groove electrode, the upper edge plate longitudinal sealing groove electrode and the upper edge plate exhaust side transverse sealing groove electrode are integrated into one to form the upper edge plate sealing groove electrode, which adopts straight-through design and does not have a clamping seat; the lower edge plate air intake side transverse sealing groove electrode, the lower edge plate longitudinal sealing groove electrode and the lower edge plate exhaust side transverse sealing groove electrode are integrated into one to form the lower edge plate sealing groove electrode, which adopts straight-through design and does not have a clamping seat; the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are manufactured by wire cutting;

[0009] 2) Design and manufacture the electrode fixture; the electrode fixture is provided with an upper edge plate electrode fixture and a lower edge plate electrode fixture;

[0010] 3) Install the upper edge plate sealing groove electrode into the upper edge plate electrode chuck, and install the lower edge plate sealing groove electrode into the lower edge plate electrode chuck;

[0011] 4) Install the blade fixture on the processing table of the three-axis forming machine, clamp the blade to be processed on the blade fixture, and connect the machine tool connection block of the electrode fixture to the tool holder of the three-axis forming machine;

[0012] 5) Adjust the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode to the accurate position, and carry out basin-shaped sealing groove processing.

[0013] Furthermore, in the processing method of the basin-shaped sealing groove of the guide vane of the gas turbine and aircraft engine, the electrode fixture includes a top plate, a base 1, a base 2, a base connecting screw, an upper edge plate electrode chuck, a lower edge plate electrode chuck, an electrode chuck locking screw 1, an electrode chuck locking screw 2, a machine tool connecting block, a reference process ball, a lateral adjustment limit seat, a longitudinal adjustment limit seat, a lateral base adjustment screw and a longitudinal base adjustment screw, and the base 1 and the base 2 are installed on the lower end surface of the top plate through the base connecting screws; the base 1 is provided with an installation groove 1, the upper edge plate electrode chuck is placed in the installation groove 1, and the electrode chuck locking screw 1 is screwed to the side of the base 1 for fixing and locking the upper Edge plate electrode chuck; Base 2 is provided with mounting groove 2, the lower edge plate electrode chuck is placed in the mounting groove 2, and electrode chuck locking screw 2 is screwed on the side of Base 2 for fixing and locking the lower edge plate electrode chuck; the machine tool connecting block is arranged on the upper end surface of the top plate, and the reference process ball is arranged at the center of the front end surface of the top plate; two transverse adjustment limit seats are respectively fixedly arranged on both sides of the top plate, and the transverse base adjustment screws are screwed on the transverse adjustment limit seats for adjusting the transverse position of Base 1 or Base 2; two longitudinal adjustment limit seats are fixedly arranged on the front end surface of the top plate, and the longitudinal base adjustment screws are screwed on the longitudinal adjustment limit seats for adjusting the longitudinal position of Base 1 or Base 2.

[0014] Furthermore, in the processing method of the gas turbine and aircraft engine guide vane basin sealing groove, the upper edge plate electrode chuck and the lower edge plate electrode chuck are both designed in split type; the upper edge plate electrode chuck includes a left half and a right half, the left half is provided with an upper edge plate sealing groove electrode profiling positioning surface and two positioning protrusions, the right half is provided with an upper edge plate sealing groove electrode profiling positioning surface and two positioning grooves, the two positioning protrusions are installed together with the two positioning grooves, the upper edge plate sealing groove electrode profiling positioning surface and The upper edge plate sealing groove electrode profiling positioning surface 2 is used for positioning and clamping the upper edge plate sealing groove electrode; the lower edge plate electrode chuck includes a left half 2 and a right half 2, the left half 2 is provided with a lower edge plate sealing groove electrode profiling positioning surface 1 and two positioning bosses 2, the right half 2 is provided with a lower edge plate sealing groove electrode profiling positioning surface 2 and two positioning grooves 2, the two positioning bosses 2 are installed together with the two positioning grooves 2, the lower edge plate sealing groove electrode profiling positioning surface 1 and the lower edge plate sealing groove electrode profiling positioning surface 2 are used for positioning and clamping the lower edge plate sealing groove electrode.

[0015] Furthermore, in the processing method of the basin-oriented sealing groove of the guide vane of the gas turbine and aircraft engine, electrode locking screw one is screwed onto the right half of the upper edge plate electrode clamp one for locking the upper edge plate sealing groove electrode, and electrode locking screw two is screwed onto the left half of the lower edge plate electrode clamp two for locking the lower edge plate sealing groove electrode.

[0016] Furthermore, in the method for processing the gas turbine and aircraft engine guide vane basin sealing groove, the side surface of the base one is set as the X-axis zero surface, and the rear end surface of the base one is set as the Y-axis zero surface.

[0017] Furthermore, in the method for processing the basin sealing groove of the guide vane of the gas turbine and aircraft engine, the blade fixture is provided with a reference seat, and the reference seat is provided with an X-direction reference surface and a Y-direction reference surface.

[0018] Furthermore, in the method for processing the basin-toward sealing groove of the guide vane of the gas turbine and aircraft engine, in the step 5), the center of the reference process ball is used as a reference, and the positions of the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are adjusted according to the theoretical positions of the basin-toward upper edge plate sealing groove and the basin-toward lower edge plate sealing groove of the blade to be processed.

[0019] Furthermore, in the processing method of the gas turbine and aircraft engine guide blade basin sealing groove, when the upper edge plate sealing groove electrode needs to be adjusted in position, first loosen the corresponding base connecting screws, and then turn the corresponding transverse base adjustment screws and longitudinal base adjustment screws to adjust the position of base one, and press the dial indicator on the adjusted surface of base one during adjustment, and adjust according to the reading of the dial indicator, and tighten the corresponding base connecting screws after the adjustment is completed; when the lower edge plate sealing groove electrode needs to be adjusted in position, first loosen the corresponding base connecting screws, and then turn the corresponding transverse base adjustment screws and longitudinal base adjustment screws to adjust the position of base two, and press the dial indicator on the adjusted surface of base two during adjustment, and adjust according to the reading of the dial indicator, and tighten the corresponding base connecting screws after the adjustment is completed.

[0020] Furthermore, in the processing method of the basin-oriented sealing groove of the guide vane of the gas turbine and aircraft engine, when the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode need to be adjusted in the height direction, first loosen the electrode locking screw 1 and the electrode locking screw 2, align the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode with the edge plate surface of the blade to be processed, and then lock the electrode locking screw 1 and the electrode locking screw 2.

[0021] Furthermore, the method for processing the basin-shaped sealing groove of the guide vane of the gas turbine and aircraft engine is as follows: moving the tool holder of the three-axis forming machine, aligning the X-axis zeroing surface and the Y-axis zeroing surface of the base one with the X-axis reference surface and the Y-axis reference surface of the reference seat respectively, and then the tool holder of the three-axis forming machine is moved according to the specified X-axis coordinate and Y-axis coordinate, and the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are aligned with the processing position of the blade to be processed, and the processing program is executed to process the basin-shaped sealing groove.

[0022] The beneficial effects of the present invention are:

[0023] 1. The electrode of the present invention is manufactured by integrated design, which reduces the number of electrodes to be manufactured. The electrode is designed to be straight-through and is manufactured by wire cutting, which reduces the manufacturing cost of the electrode.

[0024] 2. The upper plate electrode chuck and the lower plate electrode chuck of the electrode fixture are both split-type designs, and the accuracy of the upper plate electrode chuck and the lower plate electrode chuck is ensured by the positioning bosses and positioning grooves thereon.

[0025] 3. The electrodes of the upper edge plate sealing groove and the lower edge plate sealing groove only need to be debugged once to complete the synchronous processing of the upper edge plate sealing groove and the lower edge plate sealing groove of the basin, which reduces the number of debugging and processing and the processing time of the basin sealing groove, and ensures the consistency of the relative position of the basin sealing groove.

[0026] 4. A reference seat is designed on the blade fixture to quickly determine the position of the basin-shaped sealing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the front view of the electrode fixture;

[0028] Figure 2 It is the left view of the electrode fixture;

[0029] Figure 3 It is a top view of the electrode fixture;

[0030] Figure 4 This is a bottom view of the electrode fixture;

[0031] Figure 5 It is a schematic diagram of the state where the left half 1 and the right half 1 of the upper edge plate electrode clamp are separated;

[0032] Figure 6 It is a schematic diagram of the state where the left half and the right half of the lower edge plate electrode clamp are separated;

[0033] Figure 7 It is a three-dimensional schematic diagram of the lower edge plate sealing slot electrode;

[0034] Figure 8 It is the transverse cross-section of the electrode of the lower edge plate sealing slot;

[0035] Fig. 9 is a schematic diagram of the blade fixture;

[0036] Fig.10 Schematic diagram of the basin-shaped sealing groove of the guide blade; in the figure: 41 is the transverse sealing groove of the upper edge plate air inlet side, 42 is the longitudinal sealing groove of the upper edge plate, 43 is the transverse sealing groove of the upper edge plate exhaust side, 44 is the transverse sealing groove of the lower edge plate air inlet side, 45 is the longitudinal sealing groove of the lower edge plate, and 46 is the transverse sealing groove of the lower edge plate exhaust side;

[0037] Fig.11 It is a schematic diagram of an existing electric spark forming electrode; in the figure: 51 is a clamping seat, and 52 is a forming head. Implementation

[0038] like Figure 1-9 As shown, the method for processing the gas turbine and aircraft engine guide vane basin sealing groove comprises the following steps:

[0039] 1) Design and manufacture the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8; the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 are manufactured by integrated straight-through design; the upper edge plate air intake side transverse sealing groove electrode, the upper edge plate longitudinal sealing groove electrode and the upper edge plate exhaust side transverse sealing groove electrode are integrated into one to form the upper edge plate sealing groove electrode 5, which adopts a straight-through design and does not have a clamping seat; the lower edge plate air intake side transverse sealing groove electrode, the lower edge plate longitudinal sealing groove electrode and the lower edge plate exhaust side transverse sealing groove electrode are integrated into one to form the lower edge plate sealing groove electrode 8, which adopts a straight-through design and does not have a clamping seat; the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 are manufactured by wire cutting, and the material is copper;

[0040] 2) Design and manufacture an electrode fixture; the electrode fixture comprises a top plate 1, a base 2, a base 6, a base connecting screw 17, an upper edge plate electrode chuck 3, a lower edge plate electrode chuck 7, an electrode chuck locking screw 14, an electrode chuck locking screw 2 15, a machine tool connecting block 9, a reference process ball 12, a lateral adjustment limit seat 10, a longitudinal adjustment limit seat 11, a lateral base adjustment screw 14 and a longitudinal base adjustment screw 13, the base 2 and the base 2 6 are mounted on the lower end surface of the top plate 1 through the base connecting screw 17; the base 2 is provided with a mounting groove 1, the upper edge plate electrode chuck 3 is placed in the mounting groove 1, and the electrode chuck locking screw 14 is screwed to the side of the base 2 to fix and lock the upper edge plate electrode chuck 3; the outer side surface of the base 2 is set as the X-axis zero surface 18, the base The rear end surface of 2 is set as the Y-axis zero surface 19; the base 2 6 is provided with a mounting groove 2, the lower edge plate electrode chuck 7 is placed in the mounting groove 2, and the electrode chuck locking screw 2 15 is screwed on the side of the base 2 6 to fix and lock the lower edge plate electrode chuck 7; the machine tool connection block 9 is arranged on the upper end surface of the top plate 1, and the reference process ball 12 is arranged at the center of the front end surface of the top plate 1; two transverse adjustment limit seats 10 are respectively fixedly arranged on both sides of the top plate 1, and the transverse base adjustment screw 14 is screwed on the transverse adjustment limit seat 10 to adjust the transverse position of the base 1 2 or the base 2 6; two longitudinal adjustment limit seats 11 are fixedly arranged on the front end surface of the top plate 1, and the longitudinal base adjustment screw 13 is screwed on the longitudinal adjustment limit seat 11 to adjust the longitudinal position of the base 1 2 or the base 2 6;

[0041] 3) Install the upper edge plate sealing groove electrode 5 into the upper edge plate electrode chuck 3, and install the lower edge plate sealing groove electrode 8 into the lower edge plate electrode chuck 7; the upper edge plate electrode chuck 3 and the lower edge plate electrode chuck 7 are both designed in split type; the upper edge plate electrode chuck 3 includes a left half 20 and a right half 21, the left half 20 is provided with an upper edge plate sealing groove electrode profiling positioning surface 24 and two positioning protrusions 25, the right half 21 is provided with an upper edge plate sealing groove electrode profiling positioning surface 26 and two positioning grooves 27, the two positioning protrusions 25 and the two positioning grooves 27 are installed together, the upper edge plate sealing groove electrode profiling positioning surface 124 and the upper edge plate sealing groove electrode profiling positioning surface 26 position and clamp the upper edge plate sealing groove electrode 5; the lower edge plate electrode The pole clamp 7 includes a left half 22 and a right half 23. The left half 22 is provided with a lower edge plate sealing groove electrode profiling positioning surface 1 36 and two positioning protrusions 28. The right half 23 is provided with a lower edge plate sealing groove electrode profiling positioning surface 29 and two positioning grooves 30. The two positioning protrusions 28 are installed together with the two positioning grooves 30. The lower edge plate sealing groove electrode profiling positioning surface 1 36 and the lower edge plate sealing groove electrode profiling positioning surface 29 position and clamp the lower edge plate sealing groove electrode 8. The electrode locking screw 1 is screwed on the right half 21 of the upper edge plate electrode clamp 3 to lock the upper edge plate sealing groove electrode 5. The electrode locking screw 2 16 is screwed on the left half 22 of the lower edge plate electrode clamp 7 to lock the lower edge plate sealing groove electrode 8.

[0042] 4) Install the blade fixture 31 on the processing table of the three-axis forming machine, clamp the blade 35 to be processed on the blade fixture 31, and connect the machine tool connecting block 9 of the electrode fixture to the tool holder of the three-axis forming machine; the blade fixture 31 is provided with a reference seat 32, and the reference seat 32 is provided with an X-direction reference surface 34 and a Y-direction reference surface 33;

[0043] 5) Adjust the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 to the accurate position, and adjust the position of the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 according to the theoretical position of the basin-upper edge plate sealing groove and the basin-lower edge plate sealing groove of the blade 35 to be processed, taking the center of the reference process ball 12 as the reference;

[0044] When the upper edge plate sealing groove electrode 5 needs to be adjusted in position, first loosen the corresponding base connection screw 17, then turn the corresponding transverse base adjustment screw 14 and the longitudinal base adjustment screw 13 to adjust the position of the base 1 2. When adjusting, press the dial indicator on the adjusted surface of the base 1 2, adjust according to the reading of the dial indicator, and tighten the corresponding base connection screw 17 after the adjustment is completed; when the lower edge plate sealing groove electrode 8 needs to be adjusted in position, first loosen the corresponding base connection screw 17, then turn the corresponding transverse base adjustment screw 14 and the longitudinal base adjustment screw 13 to adjust the position of the base 2 6. When adjusting, press the dial indicator on the adjusted surface of the base 2 6, adjust according to the reading of the dial indicator, and tighten the corresponding base connection screw 17 after the adjustment is completed;

[0045] When the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 need to be adjusted in height direction, first loosen the electrode locking screw 1 and the electrode locking screw 2 16, align the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 with the edge plate surface of the blade to be processed, and then lock the electrode locking screw 1 and the electrode locking screw 2 16;

[0046] Move the tool holder of the three-axis forming machine, align the X-axis zero surface 18 and the Y-axis zero surface 19 of the base 2 with the X-axis reference surface 34 and the Y-axis reference surface 33 of the reference seat 32 respectively, and then move the tool holder of the three-axis forming machine according to the specified X-axis coordinate and Y-axis coordinate, align the upper edge plate sealing groove electrode 5 and the lower edge plate sealing groove electrode 8 to the processing position of the blade 35 to be processed, and execute the processing program to process the basin sealing groove.

Claims

1. A method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine, characterized in that: The steps include: 1) Design and manufacture the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode; the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are designed and manufactured by integrated straight-through type; the upper edge plate air intake side transverse sealing groove electrode, the upper edge plate longitudinal sealing groove electrode and the upper edge plate exhaust side transverse sealing groove electrode are integrated into one to form the upper edge plate sealing groove electrode, which adopts straight-through design and does not have a clamping seat; the lower edge plate air intake side transverse sealing groove electrode, the lower edge plate longitudinal sealing groove electrode and the lower edge plate exhaust side transverse sealing groove electrode are integrated into one to form the lower edge plate sealing groove electrode, which adopts straight-through design and does not have a clamping seat; the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are manufactured by wire cutting; 2) Design and manufacture an electrode fixture; the electrode fixture is provided with an upper edge plate electrode chuck and a lower edge plate electrode chuck; the electrode fixture comprises a top plate, a base 1, a base 2, base connecting screws, an upper edge plate electrode chuck, a lower edge plate electrode chuck, an electrode chuck locking screw 1, an electrode chuck locking screw 2, a machine tool connecting block, a reference process ball, a transverse adjustment limit seat, a longitudinal adjustment limit seat, a transverse base adjustment screw and a longitudinal base adjustment screw, the base 1 and the base 2 are mounted on the lower end surface of the top plate through the base connecting screws; the base 1 is provided with a mounting groove 1, and the upper edge plate electrode chuck is placed In the installation groove one, the electrode chuck locking screw one is screwed on the side of the base one to fix and lock the upper edge plate electrode chuck; the base two is provided with a mounting groove two, the lower edge plate electrode chuck is placed in the mounting groove two, and the electrode chuck locking screw two is screwed on the side of the base two to fix and lock the lower edge plate electrode chuck; the machine tool connection block is arranged on the upper end surface of the top plate, and the reference process ball is arranged at the center of the front end surface of the top plate; two lateral adjustment limit seats are respectively fixed on both sides of the top plate, and the lateral base adjustment screws are screwed on the lateral adjustment limit seats to adjust the base one or the base two. horizontal position; two longitudinal adjustment limit seats are fixedly arranged on the front end surface of the top plate, and the longitudinal base adjustment screw is screwed on the longitudinal adjustment limit seat to adjust the longitudinal position of the base one or the base two; the upper edge plate electrode chuck and the lower edge plate electrode chuck are both split-type designs; the upper edge plate electrode chuck includes a left half one and a right half one, the left half one is provided with an upper edge plate sealing groove electrode profiling positioning surface one and two positioning protrusions one, the right half one is provided with an upper edge plate sealing groove electrode profiling positioning surface two and two positioning grooves one, the two positioning protrusions one and the two positioning grooves one are installed together, The upper edge plate sealing groove electrode profiling positioning surface 1 and the upper edge plate sealing groove electrode profiling positioning surface 2 are used to position and clamp the upper edge plate sealing groove electrode; the lower edge plate electrode clamp includes a left half 2 and a right half 2, the left half 2 is provided with a lower edge plate sealing groove electrode profiling positioning surface 1 and two positioning protrusions 2, the right half 2 is provided with a lower edge plate sealing groove electrode profiling positioning surface 2 and two positioning grooves 2, the two positioning protrusions 2 are installed together with the two positioning grooves 2, the lower edge plate sealing groove electrode profiling positioning surface 1 and the lower edge plate sealing groove electrode profiling positioning surface 2 are used to position and clamp the lower edge plate sealing groove electrode; 3) Install the upper edge plate sealing groove electrode into the upper edge plate electrode chuck, and install the lower edge plate sealing groove electrode into the lower edge plate electrode chuck; 4) Install the blade fixture on the processing table of the three-axis forming machine, clamp the blade to be processed on the blade fixture, and connect the machine tool connection block of the electrode fixture to the tool holder of the three-axis forming machine; 5) Adjust the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode to the accurate position, and carry out basin-shaped sealing groove processing.

2. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 1, characterized in that: Electrode locking screw one is screwed on the right half one of the upper edge plate electrode clamp for locking the upper edge plate sealing groove electrode, and electrode locking screw two is screwed on the left half two of the lower edge plate electrode clamp for locking the lower edge plate sealing groove electrode.

3. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 2, characterized in that: The side surface of the base 1 is set as the zero surface in the X direction, and the rear end surface of the base 1 is set as the zero surface in the Y direction.

4. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 3, characterized in that: The blade fixture is provided with a reference seat, and the reference seat is provided with an X-direction reference surface and a Y-direction reference surface.

5. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 4, characterized in that: In the step 5), the positions of the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode are adjusted based on the center of the reference process ball and the theoretical positions of the basin upper edge plate sealing groove and the basin lower edge plate sealing groove of the blade to be processed.

6. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 5, characterized in that: When the electrode of the upper edge plate sealing groove needs to be adjusted in position, first loosen the corresponding base connecting screws, and then turn the corresponding transverse base adjustment screws and longitudinal base adjustment screws to adjust the position of base one. When adjusting, press the dial indicator on the adjusted surface of base one, and adjust according to the reading of the dial indicator. After the adjustment is completed, tighten the corresponding base connecting screws; when the electrode of the lower edge plate sealing groove needs to be adjusted in position, first loosen the corresponding base connecting screws, and then turn the corresponding transverse base adjustment screws and longitudinal base adjustment screws to adjust the position of base two. When adjusting, press the dial indicator on the adjusted surface of base two, and adjust according to the reading of the dial indicator. After the adjustment is completed, tighten the corresponding base connecting screws.

7. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 6, characterized in that: When the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode need to be adjusted in height direction, first loosen electrode locking screw 1 and electrode locking screw 2, align the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode with the edge plate surface of the blade to be processed, and then lock electrode locking screw 1 and electrode locking screw 2.

8. The method for processing the sealing groove of the guide vane basin of a gas turbine and an aircraft engine according to claim 7, characterized in that: Move the tool holder of the three-axis forming machine, align the X-axis zero surface and the Y-axis zero surface of the base one with the X-axis reference surface and the Y-axis reference surface of the reference seat respectively, and then move the tool holder of the three-axis forming machine according to the specified X-axis coordinate and Y-axis coordinate, align the upper edge plate sealing groove electrode and the lower edge plate sealing groove electrode to the processing position of the blade to be processed, and execute the processing program to process the basin sealing groove.

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