Special clamp for electrolytic grinding machining of honeycomb sealing ring

Abstract

The invention discloses a special fixture for electrolytic grinding of a honeycomb sealing ring, which comprises a fixing module, a conductive module, an insulating plate, a workbench and a leveling module, and the fixing module comprises a fixing disc, M pressing plates, M fixing screws and 2N adjusting screws. The honeycomb sealing ring is installed in the fixing disc, and axial and radial pressing force is provided for the honeycomb sealing ring through the M pressing plates and the 2N adjusting screws. The fixed disc is connected with an external power supply through the conductive module, and the conductive module and the insulating plate ensure insulation of the workbench and the fixed disc. The problem that the honeycomb sealing ring is stressed and deformed in the existing electrolytic grinding machining process is solved, meanwhile, the clamp and the workbench are insulated, the problem that the workbench is electrified is solved, high-precision electrolytic grinding machining of the honeycomb sealing ring is achieved, and the size error of parts is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical processing and electrochemical processing, and particularly relates to a special fixture for electrolytic grinding processing of a honeycomb sealing ring. BACKGROUND

[0002] The honeycomb sealing ring is a key part related to the sealing performance of an aero-engine, and the excellent air-tight structure of the honeycomb sealing ring can improve the stability of a rotor. Compared with comb seal and smooth seal, the honeycomb seal has the best sealing performance and the smallest leakage. However, due to the small diameter of each regular hexagonal hole of the honeycomb seal and the thin wall of the honeycomb structure, burrs and burrs are easily generated during the manufacturing process, which affects the subsequent use process. The structure of the honeycomb sealing ring makes the manufacturing and processing of the honeycomb seal difficult. At present, the commonly used high-efficiency processing method of the honeycomb sealing ring has been changed from traditional grinding processing to electrolytic grinding processing.

[0003] Electrolytic grinding processing is a combined processing technology combining electrochemical processing and grinding processing. Due to the existence of electrochemical action, the material removal rate of electrolytic grinding processing can be improved compared with grinding processing, and the burrs and burrs on the surface of the honeycomb sealing ring can be reduced.

[0004] However, the wall thickness of the honeycomb sealing ring is small, and the stiffness of the part is low. During electrolytic grinding, the honeycomb sealing ring is prone to radial and axial tool deflection under the action of mechanical grinding force, which finally causes the decline of the processing precision of the honeycomb sealing ring. Therefore, a special fixture needs to be designed for the electrolytic grinding process of the honeycomb sealing ring to provide radial and axial support for its processing to reduce its processing deformation. At the same time, since the electrolytic grinding processing adopts salt solution as the working liquid, it has certain corrosiveness to machine parts. When the workbench is directly connected with the part and the fixture, since the part is connected with the positive electrode of the power supply during the electrolytic grinding process, the workbench and the part and the fixture are positively charged. In the contact area with the electrolyte, the workbench will be subjected to anode corrosion, which reduces its service life. Therefore, a special fixture needs to be designed for the electrolytic grinding process of the honeycomb sealing ring to ensure the insulation of the workbench.

[0005] At present, there are few special fixtures designed for the electrolytic grinding processing of the honeycomb sealing ring, and the problem of improving the processing stiffness of the honeycomb sealing ring to provide radial and axial support for the honeycomb sealing ring to improve the processing precision needs to be solved. SUMMARY

[0006] The technical problem to be solved by the application is to provide a special fixture for electrolytic grinding processing of a honeycomb sealing ring in view of the defects in the background art.

[0007] The application adopts the following technical solutions to solve the above technical problems: A kind of honeycomb seal ring electrolytic grinding processing special fixture, including fixed module, conductive module, insulating plate, workbench and leveling module; The fixed module includes a fixed disc, M pressing plates, M fixed screws, and 2N adjusting screws, M and N are both natural numbers greater than or equal to 3; The fixed disc is a hollow cylinder with an open upper end, made of conductive material, for fixing the honeycomb seal ring; The upper end surface of the fixed disc is uniformly provided with M fixed thread blind holes corresponding to the fixed screws; The outer wall of the fixed disc is uniformly provided with N groups of adjusting thread through holes;Each group of adjusting thread through holes includes two adjusting thread through holes, and the center line of the two adjusting thread through holes is parallel to the axis of the fixed disc, and the two adjusting thread through holes are equally divided in the direction parallel to the axis of the fixed disc; The outer wall of the fixed disc is also uniformly provided with P leveling grooves, and P is a natural number greater than or equal to 3; The lower end surface of the bottom wall of the fixed disc is provided with a cylindrical positioning pile, and the bottom wall of the fixed disc is uniformly provided with four first conductive through holes passing through the positioning pile;The positioning pile is made of conductive material; The lower end surface of the bottom wall of the fixed disc is uniformly provided with four strip grooves around the positioning pile, pointing from the outer wall of the fixed disc to the center of the bottom wall of the fixed disc, and the bottom wall of the fixed disc is provided with a through hole at one end inside the four strip grooves, forming four channels for electrolyte outflow; The bottom wall of the fixed disc is also uniformly provided with four second conductive through holes around the positioning pile; The M pressing plates are identical in structure and correspond to the M fixed screws, and the center of each pressing plate is provided with a through hole for cooperating with the fixed screw;The M fixed screws are connected with the corresponding fixed thread blind holes in the fixed disc through the through holes in the centers of the corresponding pressing plates, so that the M pressing plates are uniformly pressed on the upper end surface of the honeycomb seal ring to be fixed; The 2N adjusting screws are connected with the 2N adjusting thread through holes one by one, for adjusting and fixing the honeycomb seal ring through the side wall of the fixed disc; The conductive module includes a conductor, a conductive pile, four first conductive bolts, and four second conductive bolts; The conductive pile is a cylinder made of conductive material, one end of which is provided with four first conductive thread blind holes corresponding to the first conductive through holes, and the other end is used for electrical connection with the positive electrode of external voltage; The conductor includes a base, an electric core, four conductive blocks, an insulating sleeve, and four third conductive bolts; The base is made of conductive material and has a circular ring shape with a through hole in the center for the battery cell to pass through, and four third conductive through holes are evenly arranged around the center through hole of the base; The battery cell is a cylinder made of conductive material, passes through the center through hole of the base and is coaxially fixed with the base, and one end of the battery cell is provided with four fourth conductive through holes corresponding to the first conductive through holes; The conductive block is a column made of conductive material and is vertically arranged, with a second conductive threaded blind hole in the center of the upper end face and a third conductive threaded blind hole in the center of the lower end face; The four third conductive bolts are respectively screwed into the third threaded blind holes of the four conductive blocks through the four third conductive through holes of the base, thereby fixing the four conductive blocks on the upper end face of the base; The insulating sleeve is made of insulating material and has a cylindrical shape, with the base, four conductive blocks and battery cell filled inside; the lower end face of the insulating sleeve is flush with the lower end face of the base, the upper end face of the insulating sleeve is flush with the upper end faces of the four conductive blocks, the upper end face of the insulating sleeve is higher than the upper end face of the battery cell, and the center of the upper end face of the insulating sleeve is provided with a cylindrical groove for exposing the upper end face of the battery cell and cooperating with the positioning stake; The four first conductive bolts are respectively screwed into the four first threaded blind holes of the conductive stake through the four first conductive through holes of the fixed disc and the four third conductive through holes of the battery cell, thereby coaxially fixing the positioning stake, battery cell and conductive stake; The four second conductive bolts are respectively screwed into the second threaded blind holes of the four conductive blocks through the four second conductive through holes of the fixed disc, thereby fixing the fixed disc and the four conductive blocks; The insulating plate is arranged on the workbench and is horizontally placed, and the center of the insulating plate and the workbench is provided with a through hole for the lower end of the battery cell and the conductive stake to pass through; The leveling module includes P leveling units; The P leveling units are evenly arranged around the through hole in the center of the insulating plate and each include a first leveling stud, a second leveling stud, a first leveling nut, a second leveling nut and a leveling plate; The lower ends of the first leveling stud and the second leveling stud are perpendicularly fixed to the upper end face of the insulating plate, and the connection line at the connection between the first leveling stud, the second leveling stud and the insulating plate points to the center of the insulating plate; The leveling plate is provided with a first leveling through hole and a second leveling through hole corresponding to the first leveling stud and the second leveling stud, respectively, and the first leveling stud and the second leveling stud are gap-fitted with the leveling plate at the first leveling through hole and the second leveling through hole, respectively, so that the leveling plate can slide up and down along the first leveling stud and the second leveling stud; The first leveling nut and the second leveling nut are respectively screwed to the upper ends of the first leveling stud and the second leveling stud. The inner side of the leveling plate of the P leveling units corresponds to the P leveling grooves extending into the outer wall of the fixed disc, and the fixed disc is leveled by adjusting the first leveling nut and the second leveling nut of the P leveling units.

[0008] As a further optimization scheme of the special fixture for electrolytic grinding processing of the honeycomb sealing ring, M and N are both 8.

[0009] As a further optimization scheme of the special fixture for electrolytic grinding processing of the honeycomb sealing ring, P is 4.

[0010] As a further optimization scheme of the special fixture for electrolytic grinding processing of the honeycomb sealing ring, the upper end face of the fixed disc is further provided with four U-shaped grooves penetrating through the outer wall of the fixed disc, which are used to release the fixed honeycomb sealing ring.

[0011] Compared with the prior art, the above technical scheme has the following technical effects: 1. The M pressing plates and 2N adjusting screws provide axial and radial pressing force for the honeycomb sealing ring, improve the machining stiffness of the honeycomb sealing ring, reduce the axial and radial tool relief phenomenon of the honeycomb sealing ring during electrolytic grinding processing, and can realize high-precision machining of the honeycomb sealing ring during electrolytic grinding processing.

[0012] 2. The leveling plate provides different pressing force around the honeycomb sealing ring, and adjusts the axial runout of the honeycomb sealing ring clamp and the honeycomb sealing ring mounting surface, further improving the machining precision of the honeycomb sealing ring during electrolytic grinding.

[0013] 3. The conductive element and the insulating support plate insulate the honeycomb sealing ring clamp from the workbench, and the current is directly conducted to the honeycomb sealing ring clamp and the honeycomb sealing ring without passing through the workbench, so that the workbench is not electrified during electrolytic grinding processing, and corrosion and damage of the workbench during processing are avoided. The special fixture has the advantages of simple structure, convenient use, low requirement for the installation environment of the machine tool, high precision of the honeycomb sealing ring after electrolytic grinding processing, and certain application value. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of the fixed honeycomb sealing ring of the present application is shown in the figure; Figure 2 The three-dimensional structure diagram of the fixed disc in the present application is shown in the figure; Figure 3 The bottom surface structure diagram of the fixed disc in the present application is shown in the figure; Figure 4 The structure diagram of the conductive element in the present application is shown in the figure; Figure 5 The cross-sectional view of the present application and the honeycomb sealing ring is shown in the figure.

[0015] In the figure, 1 is a fixed disc, 2 is a honeycomb sealing ring, 3 is a conducting piece, 4 is an insulating plate, 5 is a workbench, 6 is a pressing plate, 7 is a fixing screw, 8 is an adjusting screw, 9 is a fixing threaded blind hole, 10 is an adjusting threaded through hole, 11 is a leveling groove, 12 is a U-shaped groove on the upper end face of the fixed disc, 13 is a positioning pile, 14 is a first conductive through hole, 15 is a strip-shaped groove on the bottom wall of the fixed disc, 16 is a second conductive through hole, 17 is a base, 18 is an electric core, 19 is a fourth conductive through hole, 20 is a conductive block, 21 is a second conductive threaded blind hole, 22 is a third conductive threaded blind hole, 23 is a third conductive bolt, 24 is an insulating sleeve, 25 is a conductive pile, 26 is a first leveling stud, 27 is a second leveling stud, 28 is a leveling plate, 29 is a first leveling nut, and 30 is a second leveling nut. DETAILED DESCRIPTION

[0016] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings: The present application can be implemented in many different forms, and should not be considered limited to the embodiments described herein. On the contrary, these embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present application to those skilled in the art. In the drawings, the components are enlarged for clarity.

[0017] It should be understood that although the terms first, second, third, etc. can be used herein to describe various elements, components and / or parts, these elements, components and / or parts are not limited by these terms. These terms are only used to distinguish one element, component and / or part from another. Therefore, the first element, component and / or part discussed below can become the second element, component or part without departing from the teaching of the present application.

[0018] As Figure 1 shown, the present application discloses a special fixture for electrolytic grinding processing of a honeycomb sealing ring, which comprises a fixed module, a conductive module, an insulating plate, a workbench and a leveling module. The fixed module comprises a fixed disc, M pressing plates, M fixing screws and 2N adjusting screws, and M and N are both natural numbers greater than or equal to 3. As Figure 2 shown, the fixed disc is a hollow cylinder with an open upper end, made of conductive material, used for fixing the honeycomb sealing ring. The upper end face of the fixed disc is uniformly provided with M fixing threaded blind holes corresponding to the fixing screws one by one. The outer wall of the fixed disk is uniformly provided with N sets of adjusting threaded through holes in the circumferential direction; each set of adjusting threaded through holes includes 2 adjusting threaded through holes, the line connecting the centers of these 2 adjusting threaded through holes is parallel to the axis of the fixed disk, and these 2 adjusting threaded through holes divide the fixed disk into three equal parts in the direction parallel to the axis of the fixed disk. The outer wall of the fixed plate is also provided with P leveling grooves evenly distributed in the circumference, where P is a natural number greater than or equal to 3; like Figure 3 As shown, a cylindrical positioning post is provided at the center of the lower end face of the bottom wall of the fixed plate, and four first conductive through holes passing through the positioning post are evenly provided circumferentially on the bottom wall of the fixed plate; the positioning post is made of conductive material. The bottom end face of the fixed plate has four strip-shaped grooves evenly arranged around the positioning pile, pointing from the outer wall of the fixed plate to the center of the bottom wall of the fixed plate. The bottom wall of the fixed plate has a through hole at one end of each of the four strip-shaped grooves, forming four channels for electrolyte to flow out. The bottom wall of the fixed plate is also provided with four second conductive through holes evenly distributed around the positioning pile in a circumferential direction. The M pressure plates have the same structure and correspond one-to-one with the M fixing screws. Each of them has a through hole in the center for engaging with the fixing screw. The M fixing screws pass through the through hole in the center of their corresponding pressure plate and are threaded into the corresponding fixing thread blind hole on the fixing plate, so that the M pressure plates press on the upper end face of the honeycomb sealing ring that needs to be fixed. The 2N adjusting screws are threadedly connected to the 2N adjusting threaded through holes, and are used to adjust and fix the honeycomb sealing ring by passing through the side wall of the fixed plate. The conductive module includes a conductive element, a conductive stake, four first conductive bolts, and four second conductive bolts; The conductive stake is a cylinder made of conductive material. One end is provided with four first conductive thread blind holes that correspond one-to-one with the first conductive through holes, and the other end is used to be electrically connected to the positive terminal of the external voltage. like Figure 4 As shown, the conductive component includes a base, a battery cell, four conductive blocks, an insulating sleeve, and four third conductive bolts; The base is made of conductive material and is in the shape of a ring. It has a through hole in the center for the battery cell to pass through, and four third conductive through holes are evenly arranged around the central through hole. The battery cell is a cylinder made of conductive material, which passes through the central through hole of the base and is coaxially fixed to the base. One end of the battery cell is provided with four fourth conductive through holes that correspond one-to-one with the first conductive through hole. The conductive block is a column made of conductive material, vertically arranged, with a second conductive threaded blind hole at the center of the upper end face and a third conductive threaded blind hole at the center of the lower end face. The four third conductive bolts are respectively connected with the third threaded blind holes of the four conductive blocks through the four third conductive through holes of the base, so that the four conductive blocks are fixed on the upper end surface of the base; The insulating sleeve is made of insulating material, and the base, the four conductive blocks and the battery cell are filled in the insulating sleeve, which is in a cylindrical shape. The lower end surface of the insulating sleeve is flush with the lower end surface of the base, and the upper end surface of the insulating sleeve is flush with the upper end surfaces of the four conductive blocks. The upper end surface of the insulating sleeve is higher than the upper end surface of the battery cell, and a cylindrical groove is arranged at the center of the upper end surface of the insulating sleeve for exposing the upper end surface of the battery cell and cooperating with the positioning pile. The four first conductive bolts are respectively connected with the first threaded blind holes of the four conductive piles through the four first conductive through holes of the fixing disc and the four third conductive through holes of the battery cell, so that the positioning pile, the battery cell and the conductive pile are coaxially fixed and connected. The four second conductive bolts are respectively connected with the second threaded blind holes of the four conductive blocks through the four second conductive through holes of the fixing disc, so that the fixing disc and the four conductive blocks are fixed and connected. The insulating plate is arranged on the workbench and is horizontally placed. The center of the insulating plate and the workbench is provided with a through hole for the lower end of the battery cell and the conductive pile to pass through. The leveling module comprises P leveling units. As shown in Figure 5 The P leveling units are uniformly arranged around the through hole in the center of the insulating plate, and each comprises a first leveling stud, a second leveling stud, a first leveling nut, a second leveling nut and a leveling plate. The lower ends of the first leveling stud and the second leveling stud are perpendicularly fixed to the upper end surface of the insulating plate, and the connecting lines at the connection between the first leveling stud, the second leveling stud and the insulating plate point to the center of the insulating plate. The leveling plate is provided with a first leveling through hole and a second leveling through hole matched with the first leveling stud and the second leveling stud respectively. The first leveling stud and the second leveling stud are gap-fitted with the leveling plate at the first leveling through hole and the second leveling through hole respectively, so that the leveling plate can slide up and down along the first leveling stud and the second leveling stud. The first leveling nut and the second leveling nut are respectively connected with the upper ends of the first leveling stud and the second leveling stud by threads. The inner sides of the leveling plates of the P leveling units correspondingly extend into P leveling grooves in the outer wall of the fixing disc, and the first leveling nuts and the second leveling nuts of the P leveling units are adjusted to make the fixing disc horizontal.

[0019] M and N are preferably 8, and P is preferably 4. The upper end surface of the fixing disc is further provided with four U-shaped grooves penetrating through the outer wall of the fixing disc, which are used to take out the fixed honeycomb sealing ring.

[0020] The conductive peg is connected to the positive pole of the power supply, so the current can be conducted to the honeycomb sealing ring installed on the fixing disc through the conductive peg. The conducting piece and the insulating plate isolate the fixing disc from the workbench, realizing the insulation of the workbench.

[0021] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with those in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless otherwise defined.

[0022] The above specific embodiments further illustrate the purposes, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A fixture for electrolytic grinding of a honeycomb seal ring, characterized by, The utility model relates to a honeycomb sealing ring fixing device, including fixed module, conductive module, insulating plate, workbench and leveling module; The fixed module includes a fixed disc, M pressing plates, M fixed screws, and 2N adjusting screws, M and N are both natural numbers greater than or equal to 3; The fixed disc is a hollow cylinder with an open upper end, made of conductive material, and used for fixing the honeycomb sealing ring; The upper end surface of the fixed disc is uniformly provided with M fixed thread blind holes corresponding to the fixed screws in a circumferential direction; The outer wall of the fixed disc is uniformly provided with N groups of adjusting thread through holes in a circumferential direction; Each group of adjusting thread through holes includes two adjusting thread through holes, and the center line of the two adjusting thread through holes is parallel to the axis of the fixed disc, and the two adjusting thread through holes are equally divided in the direction parallel to the axis of the fixed disc; The outer wall of the fixed disc is also uniformly provided with P leveling grooves in a circumferential direction, and P is a natural number greater than or equal to 3; The lower end surface of the bottom wall of the fixed disc is provided with a cylindrical positioning pile in the center, and the bottom wall of the fixed disc is uniformly provided with four first conductive through holes passing through the positioning pile in a circumferential direction; The positioning pile is made of conductive material; The lower end surface of the bottom wall of the fixed disc is uniformly provided with four strip grooves pointing from the outer wall of the fixed disc to the center of the bottom wall of the fixed disc in a circumferential direction around the positioning pile, and the bottom wall of the fixed disc is provided with through holes at one end inside the four strip grooves, forming four channels for electrolyte outflow; The bottom wall of the fixed disc is also uniformly provided with four second conductive through holes in a circumferential direction around the positioning pile; The M pressing plates are the same structure, and the center of each pressing plate is provided with a through hole for cooperating with the fixed screw; After the M fixed screws pass through the through hole in the center of the corresponding pressing plate, they are connected with the corresponding fixed thread blind hole on the fixed disc in a threaded manner, so that the M pressing plates are uniformly pressed on the upper end surface of the honeycomb sealing ring to be fixed; The 2N adjusting screws are connected with the 2N adjusting thread through holes in a threaded manner one by one, and are used for adjusting and fixing the honeycomb sealing ring through the side wall of the fixed disc; The conductive module includes a conductor, a conductive pile, four first conductive bolts, and four second conductive bolts; The conductive pile is a cylinder made of conductive material, one end of which is provided with four first conductive thread blind holes corresponding to the first conductive through holes one by one, and the other end is used for electrical connection with the positive electrode of the external voltage; The conductor includes a base, an electric core, four conductive blocks, an insulating sleeve, and four third conductive bolts; The base is made of conductive material and has a circular ring shape, the center of which is provided with a through hole for the electric core to pass through, and the base is uniformly provided with four third conductive through holes in a circumferential direction around the center through hole; The electric core is a cylinder made of conductive material, which passes through the center through hole of the base and is coaxially fixed to the base, one end of the electric core is provided with four fourth conductive through holes corresponding to the first conductive through holes one by one; The conductive block is a column made of conductive material, vertically arranged, and provided with a second conductive thread blind hole in the center of the upper end surface and a third conductive thread blind hole in the center of the lower end surface; The four third conductive bolts are connected with the third thread blind holes of the four conductive blocks in a threaded manner after passing through the four third conductive through holes of the base, thereby fixing the four conductive blocks on the upper end surface of the base. The insulating sleeve is made of insulating material, and the base, the four conductive blocks and the battery cell are filled in the insulating sleeve, which is in a cylindrical shape; the lower end surface of the insulating sleeve is flush with the lower end surface of the base, and the upper end surface of the insulating sleeve is flush with the upper end surfaces of the four conductive blocks; the upper end surface of the insulating sleeve is higher than the upper end surface of the battery cell, and a cylindrical groove is arranged at the center of the upper end surface of the insulating sleeve for exposing the upper end surface of the battery cell and cooperating with the positioning stake; The four first conductive bolts are sequentially connected with the four first conductive threaded blind holes of the conductive stake through the four first conductive through holes of the fixed disc and the four third conductive through holes of the battery cell, so as to coaxially fix the positioning stake, the battery cell and the conductive stake; The four second conductive bolts are connected with the second conductive threaded blind holes of the four conductive blocks through the four second conductive through holes of the fixed disc, so as to fix the fixed disc and the four conductive blocks; The insulating plate is arranged on the workbench and is horizontally placed, and the center of the insulating plate and the workbench is provided with a through hole for the lower end of the battery cell and the conductive stake to pass through; The leveling module comprises P leveling units; The P leveling units are uniformly arranged around the through hole in the center of the insulating plate, and each of the P leveling units comprises a first leveling stud, a second leveling stud, a first leveling nut, a second leveling nut and a leveling plate; The lower ends of the first leveling stud and the second leveling stud are perpendicularly fixed to the upper end surface of the insulating plate, and the connection line at the connection between the first leveling stud, the second leveling stud and the insulating plate points to the center of the insulating plate; The leveling plate is provided with a first leveling through hole and a second leveling through hole matched with the first leveling stud and the second leveling stud, respectively, and the first leveling stud and the second leveling stud are gap-fitted with the leveling plate at the first leveling through hole and the second leveling through hole, so that the leveling plate can slide up and down along the first leveling stud and the second leveling stud; The first leveling nut and the second leveling nut are connected with the upper ends of the first leveling stud and the second leveling stud, respectively; The inner sides of the leveling plates of the P leveling units correspondingly extend into P leveling grooves in the outer wall of the fixed disc, and the first leveling nut and the second leveling nut of the P leveling units are adjusted to make the fixed disc horizontal.

2. The honeycomb seal ring electrolytic grinding machining special fixture according to claim 1, characterized in that, M and N are both 8.

3. The honeycomb seal ring electrolytic grinding machining special fixture according to claim 1, characterized in that, P is 4.

4. The honeycomb seal ring electrolytic grinding machining special fixture according to claim 1, characterized in that, The upper end surface of the fixed disc is further provided with four U-shaped grooves penetrating through the outer wall of the fixed disc, which are used for taking out the fixed honeycomb sealing ring.

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