Fuel rail positioning tool and method

Abstract

The present application relates to a kind of fuel manifold positioning tool and its method, wherein, fuel manifold positioning tool includes tool unit, tool unit includes base (1) and connecting assembly, connecting assembly is used to be connected with fuel manifold, connecting assembly is installed on base, and the angle and / or height of connecting assembly relative to base (1) is adjustable.Wherein, based on the positioning method of fuel manifold positioning tool includes providing annular positioning piece and multiple tool units, the base (1) of multiple tool units is installed on annular positioning piece along circumference and makes multiple base (1) actual position relative to annular positioning piece and the target position of multiple fuel nozzle mounting seat relative to combustion chamber case one-to-one correspondence, according to the target relative position relationship of fuel nozzle and mounting seat, adjusting the angle and / or height of connecting assembly relative to base (1).

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, and in particular to a fuel manifold positioning tool and a method thereof. BACKGROUND

[0002] The fuel manifold is an important component of an aero-engine and is fixedly connected to a combustion chamber case. The fuel supply of the combustion chamber of the aero-engine needs to be safely delivered through the fuel manifold to ensure the normal operation of the engine, and therefore the machining and installation of the fuel manifold need to have high precision to avoid the situation that the fuel manifold leaks due to unqualified machining or assembly. Therefore, ensuring the connection precision between the fuel manifold and the fuel nozzle is a prerequisite for ensuring the quality of the aero-engine, and therefore a tool needs to be used to position the fuel manifold in the production process of the fuel manifold.

[0003] Since the configurations of the fuel manifolds of different models of aero-engines are different, especially the fuel nozzle joints have great differences, and different models of tools are different and cannot be universal, which further leads to more and more configurations of the fuel manifolds, and therefore the structure forms and the number of the tools are also increasing, and a large amount of manpower and materials are consumed to machine different tools, thereby increasing the manufacturing cost of the tools and causing resource waste.

[0004] It should be noted that the information disclosed in the background section of the present application is only intended to increase the understanding of the overall background of the present application and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0005] The present application provides a fuel manifold positioning tool and a method thereof, and the structure of the tool used to machine the fuel manifold is adjustable to increase the adaptability of the tool to fuel manifolds of different configurations, thereby reducing the manufacturing cost of the fuel manifold and reducing resource waste.

[0006] According to an aspect of the present application, a fuel manifold positioning tool is provided, comprising a tool unit, the tool unit comprising:

[0007] a base; and

[0008] a connecting assembly for connecting with the fuel manifold, the connecting assembly being mounted on the base, and the angle and / or height of the connecting assembly relative to the base being adjustable.

[0009] In some embodiments, the connecting assembly comprises a first support and a first connecting piece, the first support being connected with the base, and the first connecting piece being used to connect with the fuel manifold, and the first support being rotatably connected with the first connecting piece.

[0010] In some embodiments, the first connecting member is provided with a first spherical portion, the first support member is provided with a first recess, the first spherical portion is inserted into the first recess, and the first recess comprises a first recessed portion which matches the shape of the outer contour of the first spherical portion.

[0011] In some embodiments, the connecting assembly further comprises a first limiting assembly configured to keep the first support member and the first connecting member relatively fixed after adjusting the relative angle of the first support member and the first connecting member.

[0012] In some embodiments, the connecting assembly further comprises a second support member and a second connecting member, the second support member is connected to the first connecting member, one end of the second connecting member is rotatably connected to the second support member, and the other end is used to connect to the fuel manifold.

[0013] In some embodiments, the second connecting member is provided with a second spherical portion, the second support member is provided with a second recess, the second spherical portion is inserted into the second recess, and the second recess comprises a second recessed portion which matches the shape of the outer contour of the second spherical portion.

[0014] In some embodiments, the connecting assembly further comprises a second limiting assembly configured to keep the second support member and the second connecting member relatively fixed after adjusting the relative angle of the second support member and the second connecting member.

[0015] In some embodiments, the radius of rotation of the second connecting member relative to the second support member is smaller than the radius of rotation of the first connecting member relative to the first support member.

[0016] In some embodiments, in a direction non-parallel to the support surface of the base, the second support member and the first connecting member are connected by a threaded connection, and the length of the threaded connection is adjustable.

[0017] In some embodiments, in a direction non-parallel to the support surface of the base, the first support member and the base are connected by a threaded connection, and the length of the threaded connection is adjustable.

[0018] According to another aspect of the present application, a positioning method based on the above-mentioned fuel manifold positioning tool is provided, comprising:

[0019] providing an annular positioning member and a plurality of tool units;

[0020] mounting the bases of the plurality of tool units on the annular positioning member in a circumferential direction, and making the actual positions of the plurality of bases relative to the annular positioning member correspond one-to-one to the target positions of the mounting seats of the plurality of fuel nozzles relative to the combustion chamber casing;

[0021] adjusting the angle and / or height of the connecting assembly relative to the base according to the target relative position relationship between the fuel nozzles and the mounting seats.

[0022] In some embodiments, the connecting assembly comprises a first connecting piece, a first supporting piece, a first limiting assembly, a second connecting piece, a second supporting piece and a second limiting assembly, the first supporting piece is connected with the base, the first connecting piece is used for connecting with the fuel main pipe, the first supporting piece is rotatably connected with the first connecting piece, the second supporting piece is connected with the first connecting piece, one end of the second connecting piece is rotatably connected with the second supporting piece, and the other end is used for connecting with the fuel main pipe, the operation of adjusting the angle and / or height of the connecting assembly relative to the base comprises:

[0023] adjusting the angle of the first connecting piece relative to the first supporting piece, and then fixing the first supporting piece and the first connecting piece through the first limiting assembly; and / or

[0024] adjusting the angle of the second connecting piece relative to the second supporting piece, and then fixing the second supporting piece and the second connecting piece through the second limiting assembly.

[0025] In some embodiments, the connecting assembly comprises a first supporting piece, a first connecting piece and a second supporting piece, the first supporting piece is connected with the base, the first connecting piece is used for connecting with the fuel main pipe, the first supporting piece is rotatably connected with the first connecting piece, in a direction non-parallel to the supporting surface of the base, the second supporting piece is connected with the first connecting piece through a threaded connection, and the first supporting piece is connected with the base through a threaded connection, the operation of adjusting the angle and / or height of the connecting assembly relative to the base comprises:

[0026] adjusting the length of the threaded connection between the second supporting piece and the first connecting piece; and / or

[0027] adjusting the length of the threaded connection between the first supporting piece and the base.

[0028] Based on the above technical solutions, the present application sets a tooling unit comprising a base and a connecting assembly in the fuel main pipe positioning tooling, and sets the relative angle and / or relative height between the base and the connecting assembly as adjustable, so as to realize the purpose of adjusting the specific structure of the tooling by adjusting the relative angle and / or relative height between the base and the connecting assembly of the tooling unit, so that the structure of the tooling can be adaptively adjusted based on the configuration of different fuel main pipes, thereby greatly increasing the applicability of the tooling and reducing the manufacturing cost of the tooling. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 An assembly drawing of the combustion chamber case, the fuel nozzle and the fuel main pipe is shown;

[0031] Figure 2A structural schematic diagram of one embodiment of the fuel manifold positioning tool of the present application is shown;

[0032] Figure 3 A sectional view of one embodiment of the fuel manifold positioning tool of the present application is shown;

[0033] Figure 4 An exploded view of one embodiment of the fuel manifold positioning tool of the present application is shown.

[0034] In the drawings:

[0035] 1, base; 2, first support; 3, first connecting piece; 4, second support; 5, second connecting piece; 6, first limiting piece; 7, second limiting piece; 8, fuel nozzle; 9, fuel manifold. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0038] As described above, the configurations of fuel manifolds of different models of aero-engines are different, and different tools cannot be used universally between different tools, resulting in the need to use a large number of different specifications of tools for the production of fuel manifolds, thereby causing a great waste of manpower and material resources.

[0039] Therefore, the present application provides a fuel manifold positioning tool and method thereof, which sets the structure of the tool for processing the fuel manifold to be adjustable, so as to increase the adaptability of the tool to fuel manifolds of different configurations.

[0040] It should be noted that the fuel manifold positioning tool and method thereof of the present application are not limited to be applied to the production and manufacturing process of fuel manifolds of aero-engines, but should be applied to heavy gas turbines including ground gas turbines, marine gas turbines, and other combustion chambers and oil supply systems having annular structures and ring pipe structures.

[0041] As shown in Figure 1 the plurality of fuel nozzles 8 are circumferentially distributed outside the combustion chamber casing, and a fuel manifold 9 is installed on the combustion chamber casing and connected with the plurality of fuel nozzles 8. Since the connection between the fuel nozzles 8 and the fuel manifold 9 has high precision requirements, before the fuel nozzles 8 are installed, the fuel manifold 9 is usually positioned by using a tool to facilitate the subsequent accurate connection between the fuel nozzles 8 and the fuel manifold 9.

[0042] In the related art, the tool for positioning the fuel manifold of the engine is usually a tool with a fixed structure, and the parts of the tool are connected by welding, so the structure of the tool cannot be adjusted, and therefore a tool of one type can only be used for an engine fuel manifold of one configuration.

[0043] As shown in Figure 2 in some embodiments of the present application, the fuel manifold positioning tool includes a tool unit, the tool unit includes a base 1 and a connecting assembly, the connecting assembly is used to connect with the fuel manifold, the connecting assembly is installed on the base 1, and the angle and / or height of the connecting assembly relative to the base 1 is adjustable.

[0044] By setting the tool unit to replace the fuel nozzles 8 and the fuel manifold 9 to cooperate, the present application can achieve the purpose of accurately positioning the joint part on the fuel manifold 9 for connecting with the fuel nozzles 8, and by setting the angle and / or height of the connecting assembly relative to the base 1 to be adjustable, the structure of the tool unit can be adjusted, that is, the structure of the tool can be adjusted, so that a tool can be applied to engine fuel manifolds of various configurations.

[0045] As shown in Figure 2 the base 1 includes a support surface for connecting with the combustion chamber casing or the positioning member, so that the tool unit can be installed on the combustion chamber casing or the positioning member through the base 1. When the fuel manifold 9 is positioned, by adjusting the angle and / or height of the connecting assembly relative to the base 1, the relative position of the part on the connecting assembly for connecting with the fuel manifold 9 relative to the combustion chamber casing or the positioning member is consistent with the relative position of the part on the fuel nozzles 8 for connecting with the fuel manifold 9 relative to the combustion chamber casing, and then the fuel manifold 9 can be further positioned based on the adjusted tool unit, so as to ensure that the position accuracy of the joint part on the fuel manifold 9 for connecting with the fuel nozzles 8 is high enough.

[0046] In some embodiments, the connecting assembly includes a first support 2 and a first connecting member 3, the first support 2 is connected with the base 1, the first connecting member 3 is used to connect with the fuel manifold, and the first support 2 is rotatably connected with the first connecting member 3.

[0047] By setting the first support 2 and the first connecting piece 3 in rotatable connection, the angle of the connecting assembly relative to the base 1 can be adjusted, so as to adjust the structure of the tooling unit according to the configuration of different fuel nozzles 8.

[0048] The connecting mode of the first support 2 and the first connecting piece 3 can be various as long as the rotatable connection effect can be achieved.

[0049] In some embodiments, the first connecting piece 3 is provided with a first spherical part, and the first support 2 is provided with a first recess, the first spherical part is inserted into the first recess, and the first recess comprises a first recessed part which is matched with the outer contour shape of the first spherical part.

[0050] By setting the first spherical part and the first recess, the first connecting piece 3 can be rotated by 360° relative to the first support 2, wherein the first spherical part and the first recessed part can be matched by spherical surfaces with equal diameters, or can be matched by a spherical surface with a larger diameter and a circular contour line with a smaller diameter. Specifically, the first recessed part can be a hemispherical surface structure as shown in Figure 3 , can be a partial spherical surface structure such as a 3 / 4 spherical surface, a 1 / 4 spherical surface, etc., and in addition, the first recessed part can be a cylindrical space with a smaller diameter than the first spherical part, etc.

[0051] The shape structure of the first recessed part can be various, as long as the shape of the first recessed part is matched with the outer contour shape of the first spherical part, so that the first spherical part can be matched with the first recessed part and rotated.

[0052] In some embodiments, the connecting assembly further comprises a first limiting assembly configured to keep the first support 2 and the first connecting piece 3 relatively fixed after adjusting the relative angle of the first support 2 and the first connecting piece 3.

[0053] As shown in Figure 2 , the first limiting assembly comprises a first limiting piece 6 and bolts, after adjusting the relative angle of the first support 2 and the first connecting piece 3, the first limiting piece 6 and the first support 2 are fastened by four bolts, so as to compress the first spherical part, to fix the relative position between the first support 2 and the first connecting piece 3.

[0054] In addition, the first limiting assembly can also adopt the form of a limiting piece and a buckle, the limiting piece is connected and fastened with the first support 2 by the buckle; or the first limiting assembly can also adopt the form of a limiting piece and a clamping groove, the clamping groove can be arranged on the limiting piece or the first support 2, and the limiting piece and the clamping groove are matched to limit the rotation of the first connecting piece 3; or the first limiting assembly and the first support 2 can also be arranged in inner and outer thread cooperation.

[0055] No matter what structure form the first limiting assembly adopts, as long as the first limiting assembly can play a role in fixing the relative position between the first support 2 and the first connecting piece 3.

[0056] In some embodiments, the connecting assembly further comprises a second support 4 and a second connecting piece 5, the second support 4 is connected with the first connecting piece 3, one end of the second connecting piece 5 is rotatably connected with the second support 4, and the other end is used for connecting with the fuel oil pipe.

[0057] By setting the rotatably connected second support 4 and second connecting piece 5, the adjusting range of the connecting assembly relative to the base 1 can be further expanded, and the flexibility and adaptability of the adjustment can be improved.

[0058] Among them, the connection mode of the second support 4 and the second connecting piece 5 can have multiple choices, as long as the effect of rotatable connection can be achieved.

[0059] In some embodiments, the second connecting piece 5 is provided with a second spherical part, the second support 4 is provided with a second groove, the second spherical part is inserted into the second groove, and the second groove comprises a second concave part which is matched with the outer contour shape of the second spherical part.

[0060] Through the setting of the second spherical part and the second groove, the second connecting piece 5 can realize 360° rotation relative to the second support 4, wherein the second spherical part and the second concave part can be matched by spherical surface with spherical surface with equal diameter, or by spherical surface with circular contour line with smaller diameter, specifically, that is, the second concave part can be a hemispherical structure as shown in Figure 3 , also can be a partial spherical structure such as 3 / 4 spherical surface, 1 / 4 spherical surface, etc., in addition, the second concave part can also be a cylindrical space with a diameter smaller than that of the second spherical part, etc.

[0061] The shape structure of the second concave part can have multiple settings, as long as the shape of the second concave part is matched with the outer contour shape of the second spherical part, so that the second spherical part can be matched with the second concave part and rotated.

[0062] In some embodiments, the connecting assembly further comprises a second limiting assembly, the second limiting assembly is configured to keep the second support 4 and the second connecting piece 5 relatively fixed after adjusting the relative angle of the second support 4 and the second connecting piece 5.

[0063] As shown in Figure 3As shown, the second limiting component includes a second limiting member 7, which has an internal thread, and a second support member 4 has an external thread that mates with the second limiting member 7. After adjusting the relative angle between the second support member 4 and the second connecting member 5, the second limiting member 7 and the second support member 4 are fastened together by the thread, thereby pressing the second spherical part to fix the relative position between the second support member 4 and the second connecting member 5.

[0064] In addition, the second limiting component can also be in the form of a limiting member and a buckle, with the limiting member connected and fastened to the second support member 4 by the buckle; or, the second limiting component can also be in the form of a limiting member and a slot, with the slot being provided on the limiting member or the second support member 4, and the limiting member and the slot cooperating to limit the rotation of the second connecting member 5.

[0065] In some embodiments, the rotation radius of the second connector 5 relative to the second support 4 is smaller than the rotation radius of the first connector 3 relative to the first support 2.

[0066] like Figure 4 As shown in the figure, according to the direction shown in the figure, the rotation radius of the second connector 5 relative to the second support 4 is smaller than the rotation radius of the first connector 3 relative to the first support 2. Specifically, the length of the second connector 5 in the longitudinal direction is smaller than the length of the first connector 3 in the longitudinal direction. Therefore, when adjusting the angle of the connecting assembly relative to the base 1, adjusting the relative position of the first connector 3 relative to the first support 2 can achieve coarse adjustment of the angle, and adjusting the relative position of the second connector 5 relative to the second support 4 can achieve fine adjustment of the angle.

[0067] In some embodiments, in a direction not parallel to the support surface of the base 1, the second support member 4 and the first connector 3 are connected by threads, and the length of the threaded connection is adjustable.

[0068] like Figure 3 As shown, the second support member 4 is provided with an internal thread, and the first connecting member 3 is provided with an external thread that mates with the second support member 4. By adjusting the length of the thread that mates with the first connecting member 3, the height of the second connecting member 5 relative to the base 1 can be adjusted within a certain range.

[0069] In some embodiments, the first support member 2 is threadedly connected to the base 1 in a direction that is not parallel to the support surface of the base 1, and the length of the threaded connection is adjustable.

[0070] like Figure 3 As shown, the first support member 2 is connected to the base 1 by a thread. By adjusting the length of the thread that mates with the base 1, the height of the connecting assembly relative to the base 1 can be adjusted, thereby achieving height adjustment of the tooling unit.

[0071] In some embodiments, the positioning method based on the above fuel manifold positioning tooling includes:

[0072] providing a ring-shaped positioning member and a plurality of tooling units;

[0073] mounting the bases 1 of the plurality of tooling units on the ring-shaped positioning member in a circumferential direction, and making the actual positions of the plurality of bases 1 relative to the ring-shaped positioning member correspond to the target positions of the mounting seats of the plurality of fuel nozzles relative to the combustor casing one by one;

[0074] adjusting the angle and / or height of the connecting assembly relative to the base 1 according to the target relative position relationship between the fuel nozzles and the mounting seats.

[0075] As shown in Figure 1 , the combustor casing is a ring-shaped member, the outside of which is mounted with a plurality of fuel nozzles 8 in a circumferential direction, and a fuel manifold 9 is mounted on the combustor casing and connected with the plurality of fuel nozzles 8.

[0076] When positioning the fuel manifold 9, the combustor casing can be directly used as a ring-shaped positioning member. Before positioning the fuel manifold 9, the plurality of bases 1 need to be mounted on the combustor casing, and after the positioning is completed, the tooling needs to be removed from the combustor casing so as to proceed with the subsequent assembly process of the fuel nozzles 8.

[0077] In addition, the ring-shaped positioning member can also be a special positioning member used instead of the combustor casing, wherein the positioning member can be reused. Compared with directly using the combustor casing to position the fuel manifold 9, using the positioning member can avoid damage to the combustor casing caused by forming or welding and the like during the process of positioning the fuel manifold 9. After the positioning is completed, the fuel manifold 9 needs to be removed from the positioning member so as to be subsequently assembled to the combustor casing.

[0078] In some embodiments, the connecting assembly includes a first connecting member 3, a first support member 2, a first limiting assembly, a second connecting member 5, a second support member 4, and a second limiting assembly, the first support member 2 is connected with the base 1, the first connecting member 3 is used for connecting with the fuel manifold, the first support member 2 is rotatably connected with the first connecting member 3, the second support member 4 is connected with the first connecting member 3, one end of the second connecting member 5 is rotatably connected with the second support member 4, and the other end is used for connecting with the fuel manifold, and the operation of adjusting the angle and / or height of the connecting assembly relative to the base 1 includes:

[0079] adjusting the angle of the first connecting member 3 relative to the first support member 2, and then fixing the first support member 2 and the first connecting member 3 through the first limiting assembly; and / or

[0080] adjusting the angle of the second connecting member 5 relative to the second support member 4, and then fixing the second support member 4 and the second connecting member 5 through the second limiting assembly.

[0081] In some embodiments, the connecting assembly comprises a first support 2 connected with the base 1, a first connecting piece 3 for connecting with the fuel manifold, and a second support 4 threadedly connected with the first connecting piece 3 in a direction non-parallel to the supporting surface of the base 1, and the first support 2 is threadedly connected with the base 1, and the operation of adjusting the angle and / or height of the connecting assembly relative to the base 1 comprises:

[0082] adjusting the length of the thread connection between the second support 4 and the first connecting piece 3; and / or

[0083] adjusting the length of the thread connection between the first support 2 and the base 1.

[0084] The working process of one embodiment of the fuel manifold positioning tool and the method thereof will be described below:

[0085] As shown in Figure 4 , in this embodiment, the fuel manifold positioning tool comprises a base 1, a first support 2, a first connecting piece 3, a second support 4, a second connecting piece 5, a first limiting piece 6, and a second limiting piece 7.

[0086] As shown in Figure 4 , the base 1 comprises a bottom plate and a first connecting part in the shape of a cylinder above the bottom plate, the bottom plate is provided with four bolt holes, and the first connecting part is provided with internal threads; the first support 2 comprises a supporting part in the shape of a flat plate and a second connecting part in the shape of a cylinder below the supporting part, the supporting part is provided with four bolt holes, and the second connecting part is provided with external threads matched with the first connecting part; the first connecting piece 3 comprises a first spherical part and a column structure above the first spherical part, the upper end of the column structure is provided with external threads; the second support 4 is in the shape of a cylinder as a whole, and is provided with threads inside and outside, and the height of the cylinder can be selected according to actual needs; the second connecting piece 5 is in the shape of a gourd as a whole, comprising a second spherical part and a connecting structure above the second spherical part, the connecting structure is used to connect with a corresponding interface on the fuel manifold 9 when the fuel manifold 9 is positioned; the first limiting piece 6 is in the shape of a flat plate as a whole, and is provided with four bolt holes at the four corners respectively matched with the first support 2; the second limiting piece 7 is in the shape of a cylinder as a whole, and is provided with internal threads matched with the external threads of the second support 4.

[0087] As shown in Figure 3 , the interiors of the first connecting piece 3 and the second connecting piece 5 can be hollow, which helps to reduce the weight of the tool unit and facilitate the transportation and installation of the tool.

[0088] In the embodiment, the annular positioning member is used to replace the combustion chamber case to cooperate with the fuel manifold 9 during positioning. The specific steps of positioning the fuel manifold 9 by the fuel manifold positioning tool according to the application are as follows.

[0089] (1) Selecting a proper number of tool units: according to the actual number of fuel nozzles, select tool units equal in number to the fuel nozzles.

[0090] (2) Installing the bases of the tool units: install the bases 1 of the selected tool units on the annular positioning member in the circumferential direction, and fix the bases 1 and the annular positioning member by four bolts, so that the actual positions of the bases 1 relative to the annular positioning member correspond to the target positions of the mounting seats of the fuel nozzles relative to the combustion chamber case.

[0091] (3) Installing the remaining parts of the tool units: integrally install the connecting assemblies of the tool units on the installed bases 1, wherein the second connecting part of the first support 2 is connected with the first connecting part of the base 1 by screwing.

[0092] (4) Adjusting the height of the connecting assembly relative to the base 1 according to the target relative position relationship between the fuel nozzle 8 and the mounting seat: if short-distance adjustment is needed, rotate the second support 4 to adjust the length of the screw connection between the second support 4 and the first connecting part 3; if medium-short-distance adjustment is needed, rotate the first support 2 to adjust the length of the screw connection between the first support 2 and the base 1; if long-distance adjustment is needed, rotate the second support 4 and the first support 2 together to adjust the length of the screw connection between the two.

[0093] (5) Coarsely adjusting the angle of the connecting assembly relative to the base 1 according to the target relative position relationship between the fuel nozzle and the mounting seat: slightly loosen the four mounting bolts fixed on the first support 2 and the first limiting part 6, adjust the first connecting part 3 to the appropriate direction, and then tighten the mounting bolts to fix the angle of the first connecting part 3 relative to the first support 2.

[0094] (6) Finely adjusting the angle of the connecting assembly relative to the base 1 according to the target relative position relationship between the fuel nozzle and the mounting seat: loosen the second limiting part 7, adjust the part on the second connecting part 5 for connecting with the fuel manifold 9 to the accurate spatial position of the part on the actual fuel nozzle 8 for connecting with the fuel manifold 9, and then tighten the second limiting part 7 to fix the angle of the second connecting part 5 relative to the second support 4.

[0095] Finally, after the height and angle of all the tool units on the annular positioning member are adjusted according to the above steps (4)-(6), the subsequent steps such as configuration and welding of the fuel manifold 9 can be carried out.

[0096] Through the description of the plurality of embodiments of the fuel oil manifold positioning tool and method thereof, it can be seen that the fuel oil manifold positioning tool and method thereof has at least the following advantages:

[0097] (1) Strong versatility. For fuel oil manifolds of different configurations, the overall structure of the tool can be adaptively adjusted by adjusting the position, angle, and height of the tool unit, or by replacing the components, thereby meeting the assembly requirements of fuel oil manifolds of different configurations.

[0098] (2) Strong adjustability. By adjusting the relative angle of the first connecting piece 3 and the first support piece 2, the second connecting piece 5 and the second support piece 4, and the fitting length of the first support piece 2 and the base 1, the second support piece 4 and the first connecting piece 3, the angle and height of the tool can be adjusted according to the actual assembly requirements, and the tool has strong adjustability.

[0099] (3) Low cost. The configuration form of the fuel oil manifold assembly tool is reduced, and the production cost of the tool is reduced.

[0100] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application and not to limit it; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: without departing from the principles of the present application, the specific embodiments of the present application can still be modified or some technical features can be replaced by equivalent ones, and these modifications and equivalent replacements should be included in the scope of the technical solutions claimed by the present application.

Claims

1. A fuel main pipe positioning fixture, characterized in that, Includes a tooling unit, the tooling unit comprising: Base (1); and A connecting assembly is mounted on the base (1), and the angle and / or height of the connecting assembly relative to the base (1) is adjustable. The connecting assembly includes a first support member (2), a first connector (3), a second support member (4), and a second connector (5). The first support member (2) is connected to the base (1), and the first support member (2) is rotatably connected to the first connector (3). The second support member (4) is connected to the first connector (3). One end of the second connector (5) is rotatably connected to the second support member (4), and the other end of the second connector (5) is used to connect to the fuel main pipe.

2. The fuel main pipe positioning fixture according to claim 1, characterized in that, The first connector (3) is provided with a first spherical part, the first support member (2) is provided with a first groove, the first spherical part is inserted into the first groove, and the first groove includes a first recessed part whose shape matches the outer contour shape of the first spherical part.

3. The fuel main pipe positioning fixture according to claim 1, characterized in that, The connecting component further includes a first limiting component, which is configured to keep the first support member (2) and the first connector (3) relatively fixed after adjusting the relative angle between the first support member (2) and the first connector (3).

4. The fuel main pipe positioning fixture according to claim 1, characterized in that, The second connector (5) is provided with a second spherical part, the second support member (4) is provided with a second groove, the second spherical part is inserted into the second groove, and the second groove includes a second recessed part whose shape matches the outer contour shape of the second spherical part.

5. The fuel main pipe positioning fixture according to claim 1, characterized in that, The connecting component further includes a second limiting component, which is configured to keep the second support member (4) and the second connector (5) relatively fixed after adjusting the relative angle between the second support member (4) and the second connector (5).

6. The fuel main pipe positioning fixture according to claim 1, characterized in that, The rotation radius of the second connector (5) relative to the second support (4) is smaller than the rotation radius of the first connector (3) relative to the first support (2).

7. The fuel main pipe positioning fixture according to claim 1, characterized in that, In a direction that is not parallel to the support surface of the base (1), the second support member (4) is connected to the first connector (3) by a thread, and the length of the threaded connection is adjustable.

8. The fuel main pipe positioning fixture according to claim 1, characterized in that, In a direction that is not parallel to the support surface of the base (1), the first support member (2) is connected to the base (1) by a thread, and the length of the threaded connection is adjustable.

9. A positioning method based on the fuel manifold positioning fixture as described in any one of claims 1 to 8, characterized in that, include: Provides an annular positioning element and multiple tooling units; The bases (1) of the multiple tooling units are mounted circumferentially on the annular positioning member, such that the actual positions of the multiple bases (1) relative to the annular positioning member correspond one-to-one with the target positions of the multiple fuel nozzle mounting seats relative to the combustion chamber casing. Adjust the angle and / or height of the connecting assembly relative to the base (1) according to the target relative position relationship between the fuel nozzle and the mounting seat.

10. The positioning method according to claim 9, characterized in that, The connecting assembly includes a first connector (3), a first support (2), a first limiting assembly, a second connector (5), a second support (4), and a second limiting assembly. The first support (2) is connected to the base (1). The first connector (3) is used to connect to the fuel main pipe. The first support (2) is rotatably connected to the first connector (3). The second support (4) is connected to the first connector (3). One end of the second connector (5) is rotatably connected to the second support (4), and the other end is used to connect to the fuel main pipe. Adjusting the angle and / or height of the connecting assembly relative to the base (1) includes: Adjust the angle of the first connector (3) relative to the first support (2), and then fix the first support (2) and the first connector (3) by the first limiting component; and / or Adjust the angle of the second connector (5) relative to the second support (4), and then fix the second support (4) and the second connector (5) by the second limiting component.

11. The positioning method according to claim 9, characterized in that, The connecting assembly includes a first support member (2), a first connector (3), and a second support member (4), wherein the first support member (2) is connected to the base (1), the first connector (3) is used to connect to the fuel main pipe, the first support member (2) and the first connector (3) are rotatably connected, and the second support member (4) is threadedly connected to the first connector (3) in a direction not parallel to the support surface of the base (1), and the first support member (2) is threadedly connected to the base (1). Adjusting the angle and / or height of the connecting assembly relative to the base (1) includes: Adjust the length of the threaded connection between the second support member (4) and the first connector (3); and / or Adjust the length of the threaded connection between the first support member (2) and the base (1).

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