Tool for milling multi-groove aircraft hinge

Abstract

The invention provides a tool for milling a multi-groove aircraft hinge, and belongs to the technical field of aeronautical manufacturing parts, the tool specifically comprises a symmetrical base body, a presser and a plurality of upper end blocks; the two opposite side faces of the symmetrical base body are provided with abutting-connection molded surfaces, the abutting-connection molded surfaces on the two side faces are symmetrically arranged, the abutting-connection molded surfaces are used for making contact with a to-be-milled hinge web face, the symmetrical base body is provided with an ejector block, and the ejector block is used for being connected with the flat end face of a hinge in an abutting mode; the upper end blocks are installed on the symmetrical base bodies, the two sides of each upper end block are provided with protruding blocks corresponding to the abutting molded surfaces, the protruding blocks are used for abutting against the protruding end faces of the hinge, the multiple upper end blocks are evenly arranged in the length direction of the hinge at intervals, and the space between every two adjacent upper end blocks is used for allowing a milling cutter to move from one abutting molded surface to the other abutting molded surface; the output end of the pressing device is used for being pressed on the back plate face of the hinge. The precision of the special clamp is achieved, and meanwhile the universality and the rapid assembling and disassembling function are considered.

Description

Technical Field

[0001] This application relates to the field of aerospace manufacturing parts, and in particular to a tooling for milling multi-groove aircraft hinges. Background Technology

[0002] Multi-groove hinges are a common type of connecting part in aircraft structures. They are generally made of standard aluminum or steel profiles, with grooves of fixed width milled according to requirements. The currently used process methods include: (1) determining the groove width by scribing, and then milling directly after clamping with a vise. (2) milling after positioning and clamping with a special fixture.

[0003] The above processes have the following drawbacks: The first process has lower manufacturing costs and higher loading and unloading efficiency, but due to factors such as profile deformation, milling accuracy cannot be guaranteed. The second process can effectively guarantee milling accuracy, but each part corresponds to a specific fixture, resulting in higher tooling costs and lower loading and unloading efficiency. Summary of the Invention

[0004] In view of this, this application provides a tooling for milling multi-groove aircraft hinges, which solves the problems in the prior art, achieving both the accuracy guarantee function of a dedicated fixture and the versatility and quick loading and unloading function, thereby reducing tooling costs and improving efficiency.

[0005] The tooling for milling multi-groove aircraft hinges provided in this application adopts the following technical solution: A tooling for milling multi-groove aircraft hinges includes a symmetrical base, a clamping device, and several upper end blocks; The symmetrical base has abutment surfaces on two opposite sides, which are symmetrically arranged. The abutment surfaces are used to contact the web surface of the hinge to be milled. The symmetrical base has a top block, which is used to abut the flat end face of the hinge. An upper block is mounted on the symmetrical base. The upper block has protrusions on both sides corresponding to the abutment surfaces. The protrusions are used to abut the raised end face of the hinge. Several upper blocks are evenly spaced along the length of the hinge. The space between adjacent upper blocks is used for the milling cutter to move from one abutment surface to another. The output end of the clamping device is used to press against the back plate surface of the hinge.

[0006] Optionally, the protrusion of the upper block serves as a positioning reference for the hinge mounting on the symmetrical base; The top block includes a mounting base, a connecting rod, a support rod, a locking assembly, and a slider. Several mounting bases are provided on opposite sides of the symmetrical base. The slider is slidably mounted on the abutment surface, and slides to approach or move away from the protrusion. The sliding direction of the slider is parallel to the abutment surface. The side of the slider facing the protrusion abuts against the flat end face of the hinge. The middle part of the connecting rod is rotatably connected to the mounting base. The pivot of the connecting rod is parallel to the length direction of the hinge. The end of the connecting rod near the symmetrical base is threadedly connected to the support rod. The support rod abuts against the side of the slider facing away from the protrusion. The locking assembly locks the angle of the connecting rod on the mounting base.

[0007] Optionally, the clamping device includes a clamping block, a bracket, a clamping bolt, and a rotating block. The bracket is mounted on a mounting base. The shank of the clamping bolt faces the back plate surface of the hinge. The clamping bolt passes through the bracket and is threadedly connected to the bracket. The end of the clamping bolt shank is rotatably connected to the rotating block. The side of the rotating block facing away from the clamping bolt is used to press against the clamping block. The profile of the clamping block away from the rotating block is used to contact the back plate surface of the hinge. The length of the clamping bolt on the bracket facing the back plate surface of the hinge is adjusted so that the rotating block presses the clamping block against the back plate surface of the hinge.

[0008] Optionally, an L-shaped rod is rotatably mounted on the mounting base. The L-shaped rod includes two mutually perpendicular segments, a first segment and a second segment. The middle part of the first segment of the L-shaped rod is rotatably connected to the mounting base and serves as the connecting rod. The second segment of the L-shaped rod serves as a support. The second segment includes a connecting part and a sliding part. The connecting part is connected to the first segment. The sliding part is slidably mounted on the connecting part. The sliding direction of the sliding part extends along the length direction of the second segment. The clamping bolt is mounted on the sliding part. When the clamping bolt drives the rotating block to press the pressure block against the back plate surface of the hinge, the clamping device acts as the locking assembly on the mounting base at an angle of the locking linkage.

[0009] Optionally, the abutting surface is provided with a groove, the depth of which is perpendicular to the abutting surface. A housing is fixed in the groove, and the slider is slidably installed in the housing. The housing has an opening on the side facing away from the protrusion and a through hole on the side facing the protrusion. The slider is provided with a sliding rod passing through the through hole, and the sliding rod abuts against the flat end face of the hinge.

[0010] Optionally, a spring is provided between the slider and the side plate of the housing facing the protrusion, the spring being used to apply a force to the slider away from the protrusion.

[0011] Optionally, the slider has a waist-shaped groove on its side facing away from the bottom of the groove, and the outer shell has a limiting rod that extends into the waist-shaped groove.

[0012] Optionally, the pressure block is rotatably mounted on the abutment surface of the symmetrical base via a hinge seat.

[0013] Optionally, the upper block is positioned and mounted on the symmetrical base by bolts and locating pins.

[0014] Optionally, the upper block is provided with extension rods on both sides, the extension rods extend to the outer side of the abutting surface, and a clamping rod is threadedly connected to the extension rod. One end of the clamping rod is used to press against the back plate of the hinge. The clamping rod and the extension rod are combined to form the clamping device.

[0015] In summary, this application includes the following beneficial technical effects: In this application, the hinge is stably positioned on a symmetrical base by means of an abutment surface, a top block, an upper end block, and a clamping device. Two hinges can be positioned and fixed on the symmetrical base simultaneously, thus allowing for the milling of two hinges in one operation. During machining, the milling cutter cuts the part along the space between adjacent upper end blocks. After milling, the clamping device and the top block or upper end block are released from the hinge, allowing the machined part to be removed, thereby improving the machining efficiency of the hinge. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the tooling used for milling multi-groove aircraft hinges in Embodiment 1; Figure 2 This is a partial structural schematic diagram of the tooling used for milling multi-groove aircraft hinges in Embodiment 1; Figure 3 This is a schematic diagram of the tooling for clamping and positioning hinges used in the milling of multi-groove aircraft hinges, as shown in Example 1. Figure 4 This is a schematic diagram of the tooling used for milling multi-groove aircraft hinges in the semi-open state, as shown in Embodiment 1. Figure 5 This is a schematic diagram of the tooling used for milling multi-groove aircraft hinges in the embodiment.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Symmetrical base; 21. Abutting surface; 3. Clamping device; 31. Clamping block; 32. Clamping bolt; 33. Rotating block; 34. Hinge seat; 4. Upper end block; 41. Protrusion; 5. Top block; 51. Mounting seat; 52. Support rod; 53. Slider; 54. Outer shell; 55. Slide rod; 56. Waist-shaped groove; 57. Limiting rod; 58. Spring; 6. L-shaped rod; 61. First section; 62. Second section; 63. Connecting part; 64. Sliding part; 65. Slide track; 66. Cylindrical rod; 67. Slot; 68. Locking rod; 7. Extension rod; 71. Clamping rod; 8. Hinge. Detailed Implementation

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0024] This application provides a tooling for milling multi-groove aircraft hinges.

[0025] Example 1; like Figures 1 to 4 As shown, a tooling for milling multi-groove aircraft hinges includes a base 1, a symmetrical base 2, a clamping device 3, and several upper end blocks 4.

[0026] The symmetrical base 2 is mounted on the base 1. The two opposite sides of the symmetrical base 2 are provided with abutment surfaces 21, which are symmetrically arranged. The abutment surfaces 21 are used to contact the web surface of the hinge 8 to be milled. The symmetrical base 2 is provided with a top block 5, which is used to abut the flat end face of the hinge 8. The upper end block 4 is mounted on the symmetrical base 2. The two sides of the upper end block 4 are provided with protrusions 41 corresponding to the abutment surfaces 21. The protrusions 41 are used to abut the convex end face of the hinge 8. Several upper end blocks 4 are evenly spaced along the length direction of the hinge 8. The space between adjacent upper end blocks 4 is used for the milling cutter to move from one abutment surface 21 to another abutment surface 21. The output end of the clamping device 3 is used to press against the back plate surface of the hinge 8.

[0027] In this application, the hinge 8 is stably positioned on the symmetrical base 2 by the abutment surface 21, the top block 5, the upper end block 4, and the clamping device 3. Two hinges 8 can be simultaneously positioned and fixed on the symmetrical base 2, thus allowing for the milling of two hinges 8 in one operation. During machining, the milling cutter cuts the part along the space between adjacent upper end blocks 4. After milling, the clamping device 3 and the top block 5 or upper end block 4 are released from the hinge 8, allowing the machined part to be removed, thus improving the machining efficiency of the hinge 8.

[0028] The protrusion 41 of the upper block 4 serves as a positioning reference for the hinge 8 to be installed on the symmetrical base 2.

[0029] The top block 5 is provided in several parts, including a mounting base 51, a connecting rod, a support rod 52, a locking assembly, and a slider 53. Several mounting bases 51 are provided on opposite sides of the symmetrical base. The mounting bases 51 are fixed on the base 1, and the number of mounting bases 51 and top blocks 5 are the same. The slider 53 is slidably mounted on the abutment surface 21, and the slider 53 slides to approach or move away from the protrusion 41. The sliding direction of the slider 53 is parallel to the abutment surface 21. The side of the slider 53 facing the protrusion 41 is used to abut against the flat end face of the hinge 8. The middle part of the connecting rod is rotatably connected to the mounting base 51. The axis of rotation of the connecting rod is parallel to the length direction of the hinge 8. The end of the connecting rod near the symmetrical base 2 is threadedly connected to the support rod 52. The support rod 52 is used to abut against the side of the slider 53 facing away from the protrusion 41. The locking assembly is used to lock the angle of the connecting rod on the mounting base 51.

[0030] The clamping device 3 includes a clamping block 31, a bracket, a clamping bolt 32, and a rotating block 33. The clamping block 31 is rotatably mounted on the abutment surface 21 of the symmetrical base 2 via a hinge seat 34, ensuring that the position of the clamping block 31 in contact with the hinge 8 is fixed each time. The bracket is mounted on the mounting base 51. The shank of the clamping bolt 32 faces the back plate surface of the hinge 8. The clamping bolt 32 passes through the bracket and is threadedly connected to the bracket. The end of the shank of the clamping bolt 32 is rotatably connected to the rotating block 33. The side of the rotating block 33 facing away from the clamping bolt 32 is used to press against the clamping block 31. The profile of the clamping block 31 away from the rotating block 33 is used to contact the back plate surface of the hinge 8. The length of the clamping bolt 32 on the bracket facing the back plate surface of the hinge 8 is adjusted so that the rotating block 33 presses the clamping block 31 tightly against the back plate surface of the hinge 8. Since the rotating block 33 and the clamping bolt 32 are rotatably connected, the rotating block 33 can remain stationary when the clamping bolt 32 is rotated, thus preventing the clamping bolt 32 from directly abutting against the pressure block 31 and causing wear to the pressure block 31.

[0031] An L-shaped rod 6 is rotatably mounted on the mounting base 51. The L-shaped rod 6 includes two mutually perpendicular segments, a first segment 61 and a second segment 62. The middle part of the first segment 61 of the L-shaped rod 6 is rotatably connected to the mounting base 51 and serves as a connecting rod. The second segment 62 of the L-shaped rod 6 serves as a support. The second segment 62 includes a connecting part 63 and a sliding part 64. The connecting part 63 is connected to the first segment 61, and the sliding part 64 is slidably mounted on the connecting part 63. The sliding direction of the sliding part 64 extends along the length direction of the second segment 62. The clamping bolt 32 is mounted on the sliding part 64. When the clamping bolt 32 drives the rotating block 33 to press the pressure block 31 against the back plate surface of the hinge 8, the clamping device 3 acts as a locking component that locks the angle of the connecting rod on the mounting base 51.

[0032] In this embodiment, the connecting part 63 includes two opposing connecting plates. One end of the connecting plate is fixedly connected to the first segment 61. The sliding part 64 is slidably disposed between the two connecting plates. Moreover, the connecting plate is provided with a slide rail 65. Both sides of the sliding part 64 are provided with cylindrical rods 66 that extend into the slide rail 65 and slide along the slide rail 65. A slot 67 is provided at the end of the connecting plate away from the first segment 61. Both sides of the sliding part 64 are provided with locking rods 68 for cooperating with the slot 67. When the locking rod 68 is located in the slot 67, the cylindrical rod 66 can slide along the slide rail 65. The cylindrical rod 66 is located at the end of the slide rail 65 closer to the first segment 61. When the locking rod 68 is removed from the slot 67, the sliding part 64 can rotate relative to the connecting part 63 under the rotational cooperation of the cylindrical rod 66 and the sliding part 68.

[0033] When installing hinge 8, flip pressure block 31 away from the symmetrical base, and make the distance between slider 53 and protrusion 41 greater than the distance between the protruding end and flat end face of hinge 8. Orient the web surface of hinge 8 toward the abutment surface 21, and fit hinge 8 against abutment surface 21 and slider 53. Flip pressure block 31 so that it fits against hinge 8. Rotate the second section 62 of L-shaped rod 6 to a vertical position, and position locking rod 68 in locking groove 67. Move support rod 52 below slider 53. Adjust support rod 52 to push slider 53 toward protrusion 41 until the protruding end of hinge 8 abuts protrusion 41. Then rotate clamping bolt 32 to make rotating block 33 press pressure block 31 onto hinge 8. At this time, under the action of screw pressing rotating block 33, support rod 52 also abuts slider 53, and connecting rod cannot rotate, thus locking connecting rod.

[0034] When the part needs to be removed after milling, rotate the support rod 52 away from the slider 53, and the slider 53 away from the hinge 8. Rotate the clamping bolt 32 to release the clamping force on the pressure plate. Pull the clamping bolt 32 upward while simultaneously pulling it away from the hinge 8. After the locking rod 68 is removed from the slot 67, the clamping bolt 32 and the rotating block 33 move to the side opposite to the pressure block 31. Then, under the gravity of the clamping bolt 32 and the rotating block 33, the sliding part 64 rotates relative to the connecting part 63. The sliding part 64, the clamping bolt 32, and the rotating block 33... 3. Continue moving away from hinge 8. At the same time, the cylindrical rod 66 of the sliding part 64 will move to the end of the slide 65 away from the first section 61. Under the gravity of the sliding part 64, the clamping bolt 32, and the rotating block 33, the first section 61 and the support rod 52 will be flipped. The support rod 52 will be completely separated from the slider 53. The distance between the slider 53 and the hinge 8 will be further increased. The hinge 8 will also move away from the protrusion 41. After flipping the pressure block 31, the pressure block 31 will move away from the abutting surface 21. The space between the pressure block 31 and the abutting surface 21 is sufficient to remove the hinge 8. The hinge 8 can then be removed. During the above process, the support rod 52 is rotated away from the slider 53, the slider 53 is moved away from the hinge 8, and the clamping bolt 32 is rotated to release the clamping force on the pressure plate. The subsequent operation can instantly complete the flipping operation of the sliding part 64, the clamping bolt 32, the rotating block 33, the connecting part 63, the first section 61 and the support rod 52. Then, the pressure block 31 is flipped to quickly complete the positioning restriction of the tooling on the hinge 8, so as to quickly remove the hinge 8. Moreover, the upper block 4, which serves as the positioning reference, does not need to be disassembled, ensuring the positioning accuracy of the next processing.

[0035] A groove is provided on the abutting surface 21, the depth of which is perpendicular to the abutting surface 21. A housing 54 is fixed in the groove. The slider 53 is slidably installed in the housing 54. The housing 54 has an opening on the side facing away from the protrusion 41. The slider 53 extends out of the opening to be abutted by the support rod 52. The housing 54 has a through hole on the side facing the protrusion 41. The slider 53 has a sliding rod 55 passing through the through hole. The sliding rod 55 abuts against the flat end face of the hinge 8.

[0036] A spring 58 is provided between the slider 53 and the side plate of the housing 54 facing the protrusion 41. The spring 58 is used to apply a force to the slider 53 away from the protrusion 41. The spring 58 ensures that after the force of the support rod 52 on the slider 53 is removed, the slider 53 can smoothly move away from the protrusion 41.

[0037] The slider 53 has a waist-shaped groove 56 on its side facing away from the bottom of the groove, and the outer shell 54 has a limiting rod 57 that extends into the waist-shaped groove 56. The design of the waist-shaped groove 56 can prevent the slider 53 from coming out of the outer shell 54.

[0038] The upper block 4 is positioned and installed on the symmetrical base 2 by bolts and positioning pins, which makes it convenient to replace different upper blocks 4 according to the specifications of the hinge 8.

[0039] Example 2; The difference from Embodiment 1 lies in the design of the clamping device 3 and the top block 5.

[0040] like Figure 5 As shown, the clamping device 3 can also be designed as follows: Extension rods 7 are provided on both sides of the upper block 4, extending to the outer side of the abutting surface 21. A clamping rod 71 is threaded onto the extension rod 7, and one end of the clamping rod 71 is used to press against the back plate of the hinge 8. The clamping rod 71 and the extension rods 7 combine to form the clamping device 3. When removing the part, the clamping rod 71 needs to be adjusted away from the hinge 8 first, then the upper block 4 can be removed from the symmetrical base, and then the machined hinge 8 can be removed. In this embodiment, the top block 5 can be directly fixed to the symmetrical base 2.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tooling for milling multi-groove aircraft hinges, characterized in that, It includes a symmetrical base (2), a clamping device (3), and several upper end blocks (4); The symmetrical base (2) has abutment surfaces (21) on two opposite sides. The abutment surfaces (21) on the two sides are symmetrically arranged. The abutment surfaces (21) are used to contact the web surface of the hinge (8) to be milled. The symmetrical base (2) has a top block (5) for abutting the flat end face of the hinge (8). The upper end block (4) is installed on the symmetrical base (2). The upper end block (4) has protrusions (41) on both sides corresponding to the abutment surfaces (21). The protrusions (41) are used to abut the convex end face of the hinge (8). Several upper end blocks (4) are evenly spaced along the length direction of the hinge (8). The space between adjacent upper end blocks (4) is used for the milling cutter to move from one abutment surface (21) to another abutment surface (21). The output end of the clamping device (3) is used to press against the back plate surface of the hinge (8).

2. The tooling for milling multi-groove aircraft hinges according to claim 1, characterized in that, The protrusion (41) of the upper block (4) serves as a positioning reference for the hinge (8) to be installed on the symmetrical base (2); The top block (5) includes a mounting base (51), a connecting rod, a support rod (52), a locking assembly, and a slider (53). Several mounting bases (51) are provided on opposite sides of the symmetrical base. The slider (53) is slidably mounted on the abutment surface (21) and slides to approach or move away from the protrusion (41). The sliding direction of the slider (53) is parallel to the abutment surface (21). The side of the slider (53) facing the protrusion (41) is used to abut against the flat end face of the hinge (8). The middle part of the connecting rod is rotatably connected to the mounting base (51). The axis of rotation of the connecting rod is parallel to the length direction of the hinge (8). The end of the connecting rod near the symmetrical base (2) is threadedly connected to the support rod (52). The support rod (52) is used to abut against the side of the slider (53) facing away from the protrusion (41). The locking assembly is used to lock the angle of the connecting rod on the mounting base (51).

3. The tooling for milling multi-groove aircraft hinges according to claim 2, characterized in that, The clamping device (3) includes a clamping block (31), a bracket, a clamping bolt (32), and a rotating block (33). The bracket is mounted on a mounting base (51). The shank of the clamping bolt (32) faces the back plate of the hinge (8). The clamping bolt (32) passes through the bracket and is threadedly connected to the bracket. The end of the shank of the clamping bolt (32) is rotatably connected to the rotating block (33). The side of the rotating block (33) facing away from the clamping bolt (32) is used to press against the clamping block (31). The profile of the clamping block (31) away from the rotating block (33) is used to contact the back plate of the hinge (8). The length of the clamping bolt (32) on the bracket facing the back plate of the hinge (8) is adjusted so that the rotating block (33) presses the clamping block (31) against the back plate of the hinge (8).

4. The tooling for milling multi-groove aircraft hinges according to claim 3, characterized in that, An L-shaped rod (6) is rotatably mounted on the mounting base (51). The L-shaped rod (6) includes two mutually perpendicular sections, a first section and a second section (62). The middle part of the first section (61) of the L-shaped rod (6) is rotatably connected to the mounting base (51) and serves as the connecting rod. The second section (62) of the L-shaped rod (6) serves as a support. The second section (62) includes a connecting part (63) and a sliding part (64). The connecting part (63) is connected to the first section (61). The sliding part (64) is slidably mounted on the connecting part (63). The sliding direction of the sliding part (64) extends along the length direction of the second section (62). The clamping bolt (32) is mounted on the sliding part (64). When the clamping bolt (32) drives the rotating block (33) to press the pressure block (31) onto the back plate surface of the hinge (8), the clamping device (3) acts as the locking link on the mounting base (51) as the locking assembly.

5. The tooling for milling multi-groove aircraft hinges according to claim 4, characterized in that, The abutting surface (21) is provided with a groove, the depth of which is perpendicular to the abutting surface (21). A housing (54) is fixed in the groove. The slider (53) is slidably installed in the housing (54). The housing (54) has an opening on the side facing away from the protrusion (41). The housing (54) has a through hole on the side facing the protrusion (41). The slider (53) is provided with a slide rod (55) that passes through the through hole. The slide rod (55) abuts against the flat end face of the hinge (8).

6. The tooling for milling multi-groove aircraft hinges according to claim 5, characterized in that, A spring (58) is provided between the slider (53) and the side plate of the housing (54) facing the protrusion (41), the spring (58) being used to apply a force to the slider (53) away from the protrusion (41).

7. The tooling for milling multi-groove aircraft hinges according to claim 5, characterized in that, The slider (53) has a waist-shaped groove (56) on its side facing away from the bottom of the groove, and the outer shell (54) has a limiting rod (57) that extends into the waist-shaped groove (56).

8. The tooling for milling multi-groove aircraft hinges according to claim 4, characterized in that, The pressure block (31) is rotatably mounted on the abutting surface (21) of the symmetrical base (2) via the hinge seat (34).

9. The tooling for milling multi-groove aircraft hinges according to claim 1, characterized in that, The upper block (4) is positioned and installed on the symmetrical base (2) by bolts and positioning pins.

10. The tooling for milling multi-groove aircraft hinges according to claim 1, characterized in that, The upper block (4) is provided with extension rods (7) on both sides. The extension rods (7) extend to the outside of the abutting surface (21). A clamping rod (71) is threaded onto the extension rod (7). One end of the clamping rod (71) is used to press against the back plate of the hinge (8). The clamping rod (71) and the extension rod (7) are combined to form the clamping device (3).

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