High-pressure turbine guide blade polishing and repairing device

Abstract

The utility model relates to a high-pressure turbine guide vane polishing and repairing device which comprises a clamp reference table, a first positioning piece, a second positioning piece, a first adjusting piece, a fastening assembly, a third positioning piece and a second adjusting piece. A stand column is arranged at one end of the clamp reference table, and one end of a cantilever is movably connected to the top of the stand column through a cantilever fastening bolt; a first positioning piece and a second positioning piece are sequentially arranged at the end, away from the stand column, of the clamp reference table, the first adjusting piece is arranged between the second positioning piece and the stand column, a moving groove is formed in the reference face of the clamp reference table, the fastening assembly is arranged in the moving groove, and a third positioning piece and a second adjusting piece are sequentially arranged at the position end, away from the stand column, of the cantilever. By means of the structure, the problems that due to the fact that an existing guide blade profile is manually polished and repaired, uncontrollable deviation exists between the manually polished and repaired profile size and a theoretical profile, the consistency is poor, and the scrap risk is likely to happen due to the fact that the profile size is out of tolerance are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine blade manufacturing, in particular to a high-pressure turbine guide blade polishing and repairing device. Background Art

[0002] High-pressure turbine guide blades are important components of aircraft engines and gas turbines. Under a pressure of 20-50 atmospheres, the high-pressure turbine guide blades are block-type double blades. The upper and lower edge plates and blade body are cast separately, and then combined and brazed after machining. This device is specially designed and manufactured for guide blade blades with complex hollow air-cooled structures.

[0003] Among the hot end components of the engine, the working conditions of the high-pressure turbine blades are the most demanding, and the guide vanes, as the stator blades at the front end of the engine, play a role in guiding the airflow to produce an orderly flow direction and reducing the interference between the airflows, so as to improve the turbine efficiency and thus improve the overall performance of the engine. It can be seen that for the high-pressure turbine guide vanes, the surface state, profile characteristics and cooling structure of the flow path surface are the key factors affecting the aerodynamic performance of the blades. The existing guide vane profile is manually polished, and the manually polished profile size has uncontrollable deviations from the theoretical profile, poor consistency, and is prone to the risk of scrapping due to excessive profile size. Utility Model Content

[0004] The utility model provides a high-pressure turbine guide blade polishing device, which solves the problem of the existing manual polishing method, in which the surface size of the manual polishing has uncontrollable deviation from the theoretical surface, poor consistency, and the risk of scrapping due to excessive surface size.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A column is provided at one end of the fixture base, and a cantilever is movably connected to the top of the column through a cantilever fastening bolt, a first positioning member and a second positioning member are sequentially provided at the end of the fixture base away from the column, a first adjusting member is provided between the second positioning member and the column, a movable groove is provided on the reference surface of the fixture base, a fastening assembly is provided in the movable groove, and a third positioning member and a second adjusting member are sequentially provided at the end of the cantilever away from the column.

[0007] The beneficial effect of the utility model is as follows: the bottom of the workpiece is placed on the fixture base table, so that the first positioning member acts on the bottom of the workpiece, and the first positioning member is a C6 positioning pin with fixed axial translation, which can prevent the workpiece from moving up and down. The second positioning member is assembled in the inner cavity at the bottom of the workpiece, and the two sides of the second positioning member are respectively abutted against the inner cavity wall of the workpiece, and then the third positioning member is assembled in the inner cavity at the top of the workpiece. After the second positioning member and the third positioning member are fitted with the inner cavity of the workpiece, the first adjustment member, the second adjustment member and the fastening assembly are adjusted to make the inner cavity of the workpiece fit and fasten with the device, so that the device can control both the horizontal translation and the rotation along the axial and horizontal directions.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the first positioning member is in the shape of a cylindrical protrusion, and the end portion is in the shape of an arc.

[0010] The beneficial effect of adopting the above further solution is that the first positioning member acts on the bottom of the workpiece, which can prevent the workpiece from moving up and down.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, the second positioning member is an adapter member for the inner cavity of the bottom of the blade basin, and an arc is provided between two adjacent side surfaces of the second positioning member.

[0013] The beneficial effect of adopting the above further solution is that the second positioning member is an adapter member for the inner cavity at the bottom of the blade basin, which can prevent the workpiece from moving horizontally. There is an arc between two adjacent side surfaces of the second positioning member, which can prevent the side edge of the second positioning member from damaging the workpiece.

[0014] On the basis of the above technical solution, the present invention can also be improved as follows.

[0015] Furthermore, the third positioning member is an inner cavity adapter member at the top of the blade basin.

[0016] The beneficial effect of adopting the above further solution is that the third positioning member and the second positioning member simultaneously limit the top and bottom of the blade basin, which can control the horizontal translation of the workpiece and the rotation of the workpiece in the axial and horizontal directions.

[0017] On the basis of the above technical solution, the present invention can also be improved as follows.

[0018] Furthermore, the first adjustment member is a blade back fastener, and the first adjustment member has a first adjustment portion and a second adjustment portion, the first adjustment portion and the second adjustment portion are respectively arranged on two side surfaces of the fixture base platform, and the first adjustment portion and the second adjustment portion can move relative to each other.

[0019] The beneficial effect of adopting the above further solution is that the fixed position of the workpiece is adjusted by the relative movement of the first adjustment part and the second adjustment part, so that the workpiece is adjusted to a more precise position.

[0020] On the basis of the above technical solution, the present invention can also be improved as follows.

[0021] Furthermore, the second adjusting member is an exhaust edge fastener, and an inner groove is formed in the second adjusting member, and a third adjusting portion and a fourth adjusting portion are arranged in the inner groove, and the third adjusting portion and the fourth adjusting portion can move relative to each other.

[0022] The beneficial effect of adopting the above further scheme is that in order to control the wall thickness of the exhaust edge, the exhaust edge is inserted between the third adjustment part and the fourth adjustment part, and a certain position of the workpiece is used as a reference, and the micrometer reading is used to control the micrometer reading to a certain value to achieve a tightening effect.

[0023] On the basis of the above technical solution, the present invention can also be improved as follows.

[0024] Furthermore, the fastening assembly is a blade basin fastener, and the fastening assembly has a moving platform and a screw rod, the moving platform is arranged in the moving groove, and one end of the screw rod passes through a side surface of the clamp base platform and abuts against a surface of the moving platform.

[0025] The beneficial effect of adopting the above further solution is that the screw is rotated so that the screw pushes the movable platform to move in the movable groove, so that the side surface of the movable platform abuts against the surface of the workpiece, thereby tightening the blade basin of the workpiece.

[0026] On the basis of the above technical solution, the present invention can also be improved as follows.

[0027] Furthermore, a plurality of first blind holes 1013 and a threaded hole 1015 are provided at the top of the column 101, and a plurality of second blind holes 1031 and countersunk holes 1033 are provided at the bottom of the cantilever 103. The first blind hole 1013 corresponds to the second blind hole 1031. A cylindrical shaft 1011 is provided in the first blind hole 1013 and the second blind hole 1031. The cylindrical shaft 1011 is matched and connected with the axial holes of the first blind hole 1013 and the second blind hole 1031. The threaded hole 1015 corresponds to the countersunk hole 1033. The cantilever fastening bolt 105 passes through the countersunk hole 1033 and is screwed with the threaded hole 1015.

[0028] The beneficial effect of adopting the above further solution is that the cylindrical shaft 1011 is installed in the first blind hole 1013 and the second blind hole 1031, and the first blind hole 1013 and the second blind hole 1031 are connected through the cylindrical shaft 1011, so that the column 101 and the cantilever 103 form a shaft-hole matching connection. Then, the cantilever fastening bolt 105 passes through the countersunk hole 1033 and is screwed into the threaded hole 1015, so that the column 101 and the cantilever 103 form a detachable connection.

[0029] On the basis of the above technical solution, the present invention can also be improved as follows.

[0030] Furthermore, the column is detachably connected to the fixture base platform.

[0031] The beneficial effect of adopting the above further solution is that the column and the fixture base table can be detachably connected, so that the split design is easy to process and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of a high-pressure turbine guide blade polishing and repairing device of the utility model in operation;

[0033] Figure 2 It is an enlarged structural schematic diagram of the first adjusting member of the utility model;

[0034] Figure 3 It is an enlarged structural schematic diagram of the second adjusting member of the utility model;

[0035] Figure 4 It is a cross-sectional view of the connection between the column and the cantilever of the utility model.

[0036] In the accompanying drawings, the list of parts represented by each number is as follows: 100-fixture base; 101-column; 1011-cylindrical shaft; 1013-first blind hole; 1015-threaded hole; 103-cantilever; 1031-second blind hole; 1033-countersunk hole; 105-cantilever fastening bolt; 107-movable groove; 110-first positioning member; 120-second positioning member; 130-first adjusting member; 131-first adjusting part; 133-second adjusting part; 140-fastening assembly; 141-moving platform; 143-screw; 150-third positioning member; 160-second adjusting member; 161-inner groove; 1611-third adjusting part; 1613-fourth adjusting part. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] Example 1

[0039] like Figure 1-4 As shown, a column 101 is provided at one end of the fixture reference platform 100, and a cantilever 103 is provided on the top of the column 101. One end of the cantilever 103 is movably connected to the top of the column 101 through a cantilever fastening bolt 105. A first positioning member 110 and a second positioning member 120 are sequentially provided at the end of the fixture reference platform 100 away from the column 101, and a first adjusting member 130 is provided between the second positioning member 120 and the column 101. A movable groove 107 is opened on the reference surface of the fixture reference platform 100, and a fastening assembly 140 is provided in the movable groove 107. A third positioning member 150 and a second adjusting member 160 are sequentially provided at the end of the cantilever 103 away from the column 101.

[0040] Specifically, the bottom of the workpiece is placed on the fixture base table 100, so that the first positioning member 110 acts on the bottom of the workpiece. The first positioning member 110 is a C6 positioning pin with fixed axial translation, which can prevent the workpiece from moving up and down. The second positioning member 120 is assembled in the inner cavity at the bottom of the workpiece, and the two sides of the second positioning member 120 are respectively against the inner cavity wall of the workpiece. Then, the third positioning member 150 is assembled in the inner cavity at the top of the workpiece. When the second positioning member 120 and the third positioning member 150 are fitted with the inner cavity of the workpiece, the first adjustment member 130, the second adjustment member 160 and the fastening assembly 140 are adjusted to make the inner cavity of the workpiece fit and fasten the device, so that the device can control the horizontal translation and the rotation in the axial and horizontal directions. At the same time, in order to control the wall thickness of the exhaust side, the sixth split seam of the workpiece is used as the reference position, and the micrometer reading is 1.90 to achieve the fastening effect. Subsequently, the device for assembling the workpiece is subjected to three-coordinate measurement, and the processing program is written and the processing parameters are determined after matching the theoretical model. The clamping of each subsequent workpiece will be based on the first workpiece measured by three-coordinates. There is no need to match the three-coordinate results again, and the processing program after three-coordinate matching can be directly called.

[0041] Among them, the high pressure in the high-pressure turbine guide blades is usually a pressure of 20-50 atmospheres.

[0042] like Figure 1 , Figure 2 As shown, the first positioning member 110 is in the shape of a cylindrical protrusion, and the end portion is in the shape of an arc.

[0043] Specifically, a specific position of the bottom of the workpiece is mounted on the first positioning member 110 .

[0044] like Figure 1 , Figure 2 As shown, the second positioning member 120 is an adapter member for the inner cavity of the bottom of the blade basin, and there is an arc between two adjacent side surfaces of the second positioning member 120.

[0045] Specifically, after the specific bottom position of the workpiece is mounted on the first positioning member 110 , the second positioning member 120 is disposed in the inner cavity of the bottom of the blade, and two adjacent side surfaces of the second positioning member 120 are abutted against the inner cavity wall of the blade.

[0046] like Figure 1 , Figure 3 As shown, the third positioning member 150 is an adapter member for the inner cavity of the top of the blade basin.

[0047] Specifically, after the specific position of the bottom of the workpiece is installed on the first positioning member 110, the second positioning member 120 is set in the inner cavity of the bottom of the blade, and the two adjacent side surfaces of the second positioning member 120 are against the inner cavity wall of the blade. The cantilever 103 is installed on the top of the column 101, and the third positioning member 150 is set in the inner cavity of the top of the blade.

[0048] like Figure 1 , Figure 2 As shown, the first adjustment member 130 is a blade back fastener, and has a first adjustment portion 131 and a second adjustment portion 133 . The first adjustment portion 131 and the second adjustment portion 133 are respectively disposed on two side surfaces of the fixture base 100 , and the first adjustment portion 131 and the second adjustment portion 133 can move relative to each other.

[0049] Specifically, the positions of the first adjustment part 131 and the second adjustment part 133 with the blade back and the blade basin are adjusted respectively, and then they are tightened to be fixed.

[0050] like Figure 1 , Figure 3 As shown, the second adjustment member 160 is an exhaust edge fastener, and the second adjustment member 160 is provided with an inner groove 161 , and a third adjustment portion 1611 and a fourth adjustment portion 1613 are disposed in the inner groove 161 , and the third adjustment portion 1611 and the fourth adjustment portion 1613 can move relative to each other.

[0051] Specifically, in this embodiment, the exhaust edge is inserted between the third adjustment portion 1611 and the fourth adjustment portion 1613, and the sixth cleavage of the workpiece is used as a reference position. When the dial indicator reading is 1.90, the tightening effect is achieved.

[0052] like Figure 1 , Figure 2 As shown, the fastening assembly 140 is a blade basin fastener, and the fastening assembly 140 has a moving platform 141 and a screw 143. The moving platform 141 is set in the moving groove 107, and one end of the screw 143 passes through a side surface of the fixture base platform 100 and abuts against a surface of the moving platform 141.

[0053] Specifically, the screw rod 143 is rotated to push the movable platform 141 to move in the movable groove 107 until the side surface of the movable platform 141 abuts against the surface of the workpiece, and then the fastening assembly 140 is fixed.

[0054] like Figure 4 As shown, a plurality of first blind holes 1013 and a threaded hole 1015 are provided at the top of the column 101, and a plurality of second blind holes 1031 and countersunk holes 1033 are provided at the bottom of the cantilever 103. The first blind holes 1013 correspond to the second blind holes 1031. A cylindrical shaft 1011 is provided in the first blind hole 1013 and the second blind hole 1031. The cylindrical shaft 1011 is matched and connected with the shaft holes of the first blind hole 1013 and the second blind hole 1031. The threaded hole 1015 corresponds to the countersunk hole 1033. The cantilever fastening bolt 105 passes through the countersunk hole 1033 and is screwed with the threaded hole 1015.

[0055] Specifically, the first blind hole 1013 and the second blind hole 1031 are connected to form an axial hole through the cylindrical shaft 1011, and then the cantilever fastening bolt 105 is passed through the countersunk hole 1033 and screwed with the threaded hole 1015, so that the column 101 and the cantilever 103 form a detachable connection. Before the workpiece is installed, the cantilever 103 and the column 101 can be disassembled first, and after the workpiece is installed on the first positioning member 110 and the second positioning member 120, the cantilever 103 is installed on the column 101. During the installation, the third positioning member 150 is set in the inner cavity at the top of the workpiece, and the exhaust edge of the workpiece is inserted between the third adjustment portion 1611 and the fourth adjustment portion 1613, and then the cantilever fastening bolt 105 is tightened to fix the cantilever 103 on the column 101.

[0056] like Figure 4 As shown, the column 101 is detachably connected to the fixture base platform 100 .

[0057] Specifically, the column 101 and the fixture base 100 are designed in a split type, and the modules are processed and manufactured separately. After the processing is completed, they are combined into a whole, which also facilitates the clamping of the blade.

[0058] The beneficial effect of this embodiment is: the device for assembling workpieces is measured in three coordinates, and after matching the theoretical model, the processing program is written and the processing parameters are determined. After that, the clamping of each workpiece is based on the first workpiece measured by three coordinates. There is no need to match the three coordinate results again. The processing program after three coordinate matching can be directly called. After the automatic polishing device in the present invention performs machine polishing, the degree of automation is high, the labor intensity is greatly reduced, and at the same time, the consistency and stability of the blade body profile of this type of high-pressure turbine guide blade are guaranteed, the difference with the theoretical profile is reduced, the polishing quality of the workpiece is improved, and the aerodynamic efficiency of this type of guide blade is improved. The deviation between the profile size and the theoretical profile is small, the precision is high, and the consistency is better. At the same time, the device adopts a "split" design for the fixture reference positioning module, the main body module, the column 101, the cantilever 103 and the fastening module. Each module is processed and manufactured separately, and then combined into a whole after the processing is completed, which is also convenient for the clamping of the blade.

[0059] The working process of this embodiment is as follows: before the workpiece is installed, the cantilever 103 and the column 101 are disassembled first, and then the bottom of the workpiece is placed on the fixture base table 100, so that the first positioning member 110 acts on the bottom of the workpiece. The first positioning member 110 is a C6 positioning pin with fixed axial translation, which can prevent the workpiece from moving up and down. The second positioning member 120 is assembled in the inner cavity at the bottom of the workpiece, and the two sides of the second positioning member 120 are respectively against the inner cavity wall of the workpiece, and then the third positioning member 150 is assembled in the inner cavity at the top of the workpiece. After the second positioning member 120 and the third positioning member 150 are fitted with the inner cavity of the workpiece, then the first adjustment part 131 and the second adjustment part 133 are adjusted to the position of the blade back and the blade basin respectively, and they are tightened to fix them. The exhaust edge is inserted between the third adjustment part 1611 and the fourth adjustment part 1613, and the position of the exhaust edge with the third adjustment part 1611 and the fourth adjustment part 1613 is adjusted. Then, the cantilever fastening bolt 105 is tightened to fix the cantilever 103 on the column 101. Then, the screw 143 is used to push the movable platform 141 to move in the movable groove 107 until the side of the movable platform 141 abuts against the surface of the workpiece, and then the fastening assembly 140 is fixed. Finally, a specific part of the workpiece is used as a reference position, and the dial gauge reading is used to control the dial gauge reading to a certain value to achieve a specific fastening effect.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A high-pressure turbine guide blade polishing and repairing device, characterized in that: The invention comprises a fixture base (100), a first positioning member (110), a second positioning member (120), a first adjusting member (130), a fastening assembly (140), a third positioning member (150) and a second adjusting member (160), wherein a column (101) is arranged at one end of the fixture base (100), a cantilever (103) is movably connected to the top of the column (101) via a cantilever fastening bolt (105), and a cantilever (103) is arranged at one end of the fixture base (100) away from the column (101). The first positioning member (110), the second positioning member (120), and the first adjusting member (130) are arranged between the second positioning member (120) and the column (101); the reference surface of the fixture reference platform (100) is provided with a movable groove (107); the fastening assembly (140) is arranged in the movable groove (107); and the third positioning member (150) and the second adjusting member (160) are arranged at the end of the cantilever (103) away from the column (101).

2. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The first positioning member (110) is in the shape of a cylindrical protrusion, and the end portion is in the shape of an arc.

3. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The second positioning piece (120) is an adapter piece for the inner cavity of the bottom of the blade basin, and an arc is provided between two adjacent side surfaces of the second positioning piece (120).

4. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The third positioning piece (150) is an adapter piece for the inner cavity at the top of the blade basin.

5. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The first adjustment member (130) is a blade back fastener, and the first adjustment member (130) comprises a first adjustment portion (131) and a second adjustment portion (133), the first adjustment portion (131) and the second adjustment portion (133) being respectively arranged on two sides of the top of the fixture base platform (100), and the first adjustment portion (131) and the second adjustment portion (133) are capable of relative movement.

6. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The second adjustment member (160) is an exhaust edge fastener, and the second adjustment member (160) is provided with an inner groove (161), and a third adjustment portion (1611) and a fourth adjustment portion (1613) are arranged in the inner groove (161), and the third adjustment portion (1611) and the fourth adjustment portion (1613) are capable of relative movement.

7. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The fastening assembly (140) is a leaf basin fastener, and the fastening assembly (140) comprises a movable platform (141) and a screw rod (143). The movable platform (141) is arranged in the movable groove (107), and one end of the screw rod (143) passes through a side surface of the clamp base platform (100) and abuts against a surface of the movable platform (141).

8. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: A plurality of first blind holes (1013) and a threaded hole (1015) are provided at the top of the column (101), and a plurality of second blind holes (1031) and countersunk holes (1033) are provided at the bottom of the cantilever (103), wherein the first blind hole (1013) corresponds to the second blind hole (1031), and cylindrical shafts (1011) are provided in the first blind hole (1013) and the second blind hole (1031), and the cylindrical shafts (1011) are matched and connected with the shaft holes of the first blind hole (1013) and the second blind hole (1031), and the threaded hole (1015) corresponds to the countersunk hole (1033), and the cantilever fastening bolt (105) passes through the countersunk hole (1033) and is threadedly connected with the threaded hole (1015).

9. A high-pressure turbine guide blade polishing and repairing device according to claim 1, characterized in that: The upright column (101) is detachably connected to the fixture reference platform (100).

Images