Skin framework assembly tool and using method

Abstract

The invention provides a skin framework assembly tool and a using method, and belongs to the technical field of tool fixtures, the skin framework assembly tool comprises an overturning workbench, a framework positioning mechanism is arranged at the upper end of the overturning workbench, and a bottom plate drilling jig mechanism and a partition plate drilling jig mechanism are further arranged at the upper end of the overturning workbench; the bottom plate drilling jig mechanism comprises a plurality of I-shaped switching bases connected with the overturning workbench, the I-shaped switching bases are arranged in a left-right mode and distributed on the front side and the rear side of the framework positioning mechanism, and a bottom plate drilling jig plate is arranged between the upper ends of the left-right adjacent I-shaped switching bases. And the partition plate drilling jig mechanism comprises a plurality of right-angle switching bases connected with the overturning workbench, and the right-angle switching bases are arranged on the left side and the right side of the framework positioning mechanism and distributed on the front side and the rear side of the framework positioning mechanism. And drilling and connection deviations are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft design, and relates to a skin frame assembly tool and a use method. Background Art

[0002] The aircraft skin is surrounded by the aircraft frame structure and fixed on the frame with rivets. It is a component that forms the aerodynamic shape of the aircraft. It is usually necessary to drill holes in the frame before riveting the skin to the frame. The error of drilling holes on the frame cannot be too large, and the connection error between the skin and the frame cannot be too large. For this purpose, an assembly tool is provided to ensure the installation accuracy of the skin and the frame. Summary of the invention

[0003] The purpose of the present invention is to provide a skin frame assembly tool and a use method to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A skin frame assembly tool comprises a turning workbench, a frame positioning mechanism is provided at the upper end of the turning workbench, a bottom plate drilling jig mechanism and a partition plate drilling jig mechanism are also provided at the upper end of the turning workbench, specifically:

[0006] The partition drilling jig mechanism includes a plurality of right-angle transfer bases 5 connected to the turning workbench 1, and the right-angle transfer bases 5 are arranged left and right and distributed on the front and rear sides of the skeleton positioning mechanism; each end of the right-angle transfer base 5 is hinged to a half gantry 6, and the two half gantry 6 connected by the right-angle transfer bases 5 arranged on the left and right sides form a gantry structure after installation;

[0007] The semi-gantry 6 is respectively provided with a first circular arch block 7 and a second circular arch block 8; a hook-shaped screw rod 9 is passed through the first circular arch block 7, and a locking nut 10 is threadedly connected to the upper end of the hook-shaped screw rod 9, and the hook-shaped screw rod 9 and the locking nut 10 play a role in clamping the skin and the frame; a screw tail cone pin 11 with a handle is threadedly connected to the second circular arch block 8, and the second circular arch block 8 and the screw tail cone pin 11 with a handle play a role in positioning the skin; a partition drilling template 12 is provided on the semi-gantry 6.

[0008] Furthermore, the bottom plate drilling template 3 is evenly provided with bottom plate drilling template holes 4 , and the partition plate drilling template 12 is evenly provided with partition plate drilling template holes 13 .

[0009] Furthermore, the skeleton is assembled from a base plate and multiple partitions. The skeleton is positioned and restricted by a skeleton positioning mechanism, the base plate is positioned and guided for drilling by a base plate drilling mechanism, and the partition is positioned and guided for drilling by a partition drilling mechanism. In addition, the partition drilling mechanism also has the function of positioning and fixing the skin.

[0010] Furthermore, the base plate drilling template 3 is detachably connected to the I-shaped adapter base 2; the base plate drilling template holes 4 on the base plate drilling template 3 can guide external drilling equipment to drill holes on the skeleton base plate.

[0011] Furthermore, the semi-gantry 6 is detachably connected to the right-angle adapter base 5; the partition drilling template holes 13 on the partition drilling template 12 can guide external drilling equipment to drill holes on the skeleton partition.

[0012] Furthermore, the skeleton positioning mechanism includes three skeleton support blocks 14, which are arranged left and right and connected to the turning workbench 1, and clamps 15 are provided on the opposite back sides of the skeleton support blocks 14 on the left and right sides; the three skeleton support blocks 14 are fixed to the turning workbench 1, and clamps 15 are fixed on the left and right skeleton support blocks 14, which can clamp and fix the skeleton from the left and right directions.

[0013] Furthermore, the I-shaped adapter base 2 and the right-angle adapter base 5 are staggered inside and outside.

[0014] Furthermore, an integrated gantry structure is installed between the right-angle transfer bases 5 located at the outermost layer of the entire tooling, and the integrated gantry structures are arranged at intervals in the middle according to the situation; the integrated gantry structure is not provided with a partition drilling template 12, a first round arch block 7 and a second round arch block 8. Furthermore, gaskets are provided on the front and rear opposite surfaces of the semi-gantry frame 6.

[0015] A method for using a skin frame assembly tool comprises the following steps:

[0016] First, a frame consisting of a base plate and a plurality of partitions is placed on a frame support block;

[0017] Then, install the bottom plate drilling template on the I-shaped transfer base, push the frame to the middle through the bottom plate drilling template, and then push and clamp the frame through the clamp on the frame support block to achieve positioning and fixation of the frame; and guide the external drilling equipment to drill holes on the bottom plate of the frame through the bottom plate drilling template holes on the bottom plate drilling template;

[0018] Next, after drilling holes on the skeleton bottom plate, remove the bottom plate drilling template, install the half gantry on the right-angle adapter base, and guide the external drilling equipment to drill holes on the skeleton partition through the partition drilling template holes on the partition drilling template on the middle half gantry;

[0019] Finally, after the drilling on the partition is completed, the semi-gantry with the partition drilling template in the middle will be completely removed, and the skin will be buckled on the frame. The left and right ends of the skin are limited by the cone pins with handles at the screw tail, and the hook-shaped screw is clamped on the skin by turning the locking nut, so that the skin and the frame are aligned; the skin is riveted to the skin through the holes drilled on the frame to achieve the positioning and installation of the skin and the frame; loosen the clamp to remove the semi-gantry frames on both sides, and loosen the hook-shaped screw to remove the installed skin and frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention can push the skeleton to the middle through the installation plate drilling template, and then push and clamp the skeleton through the clamps on the skeleton support block to achieve positioning and fixation of the skeleton, and can guide external drilling equipment to drill holes at specific positions of the skeleton through the drilling template holes on the bottom plate drilling template and the partition drilling template, so that the skin can be restricted and fixed on the left and right semi-gantry frames so that the skin can be aligned with the skeleton, and the holes drilled on the skeleton are used for riveting with the skin, so as to achieve positioning and installation of the skin and the skeleton, ensure the accuracy of the connection between the skin and the skeleton, and reduce drilling and connection deviations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention when installing the bottom plate drilling template mechanism.

[0023] Figure 2 It is a structural schematic diagram of the partition drilling template mechanism when installing the present invention.

[0024] Figure 3 It is a structural schematic diagram of the skeleton positioning mechanism of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the bottom plate drilling template mechanism of the present invention.

[0026] In the figure: 1 flip workbench; 2 I-shaped transfer base; 3 bottom plate drilling template; 4 bottom plate drilling template holes; 5 right-angle transfer base; 6 half gantry; 7 first round arch block; 8 second round arch block; 9 hook screw; 10 locking nut; 11 taper pin with handle screw tail; 12 partition plate drilling template; 13 partition plate drilling template holes; 14 skeleton support block; 15 clamp. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-4The present invention provides a technical solution: a skin skeleton assembly tool, including a flip workbench 1, the flip workbench 1 can be made of suitable existing technology, and its tabletop can be flipped and fixed to facilitate adjustment of the operating angle, the upper end of the flip workbench 1 is provided with a skeleton positioning mechanism, the upper end of the flip workbench 1 is also provided with a bottom plate drilling jig mechanism and a partition drilling jig mechanism, the skeleton is assembled from a bottom plate and a plurality of partitions, the skeleton is positioned and restricted by the skeleton positioning mechanism, the bottom plate is positioned and guided for drilling by the bottom plate drilling jig mechanism, the partition is positioned and guided for drilling by the partition drilling jig mechanism, and the partition drilling jig mechanism also has the function of positioning and fixing the skin, the bottom plate drilling jig mechanism includes a plurality of I-shaped connecting members connected to the flip workbench 1 An adapter base 2, the I-shaped adapter base 2 is arranged left and right and distributed on the front and rear sides of the skeleton positioning mechanism, a bottom plate drilling template 3 is provided between the upper ends of the left and right adjacent I-shaped adapter bases 2, and bottom plate drilling template holes 4 are evenly opened on the bottom plate drilling template 3. The lower end of the I-shaped adapter base 2 can be fixed on the flip workbench 1 by bolts and nuts. Eight I-shaped adapter bases 2 are symmetrically arranged left and right on the flip workbench 1. Two bends that cooperate with the I-shaped adapter base 2 are formed at the lower end of the bottom plate drilling template 3, which can be detachably connected to the I-shaped adapter base 2 by a screw tail cone pin and a nut. Since the bottom plate drilling template 3 needs to be frequently disassembled and assembled, a handle is added to the screw tail cone pin and a wrench is added to the nut to facilitate the disassembly and assembly between the two. When installing the bottom plate drilling templates 3 on the front and rear sides, the skeleton placed on the skeleton positioning mechanism can be pushed to the middle position in the front and rear directions, and then clamped and fixed from the left and right directions by the skeleton positioning mechanism to achieve positioning and fixing. The bottom plate drilling template holes 4 on the bottom plate drilling template 3 can guide external drilling equipment to drill holes at specific positions on the skeleton bottom plate. The partition drilling template mechanism includes a plurality of right-angle transfer bases 5 connected to the turning workbench 1, and the right-angle transfer bases 5 are arranged left and right and distributed on the front and rear sides of the skeleton positioning mechanism. A semi-gantry 6 is provided at the left end of the right-angle transfer base 5, and the opposite back surfaces of the semi-gantry 6 on the left and right sides are respectively provided with a first round arch block 7 and a second round arch block 8, and a hook-shaped screw is placed through the first round arch block 7. 9, the upper end of the hook-shaped screw 9 is threadedly connected with a locking nut 10, and the second round arch block 8 is threadedly connected with a screw tail cone pin 11 with a handle. The right end of the semi-gantry 6 excluding the remaining on the left and right sides is provided with a partition drilling template 12, and the partition drilling template 12 is evenly provided with partition drilling template holes 13. The lower end of the right-angle transfer base 5 is often fixed on the flip workbench 1 by bolts and nuts. Eighteen right-angle transfer bases 5 are symmetrically arranged on the flip workbench 1. The semi-gantry 6 and the right-angle transfer base 5 also need to be frequently disassembled and assembled. The matching relationship between the semi-gantry 6 and the right-angle transfer base 5 is similar to the matching relationship between the bottom plate drilling template 3 and the I-shaped transfer base 2. Both use screw tail cone pins with handles and nuts with wrenches that are convenient for disassembly and assembly.Some of the semi-gantry frames 6 facing each other in the front and back are connected as a whole to form a complete gantry. The two gantries on the left and right sides are provided with fixtures for positioning and fixing the skin. The remaining semi-gantry frames 6 are fixed with a partition drilling template 12. The partition drilling template holes 13 on the partition drilling template 12 can guide the external drilling equipment to drill holes at specific positions of the skeleton partition. The first round arch block 7 and the second round arch block 8 are fixed on the left and right gantries. The hook-shaped screw rod 9 passes through the first round arch block 7 and has a hook for clamping formed at the lower end. The upper end of the hook-shaped screw rod 9 is threadedly connected to the locking nut 10. The hook-shaped screw rod 9 is clamped to the skin by rotating the locking nut 10. The second round arch block 8 is threadedly connected to the screw tail cone pin 11 with a handle. The screw tail cone pin 11 with a handle also has a handle. The left and right ends of the skin are limited by the screw tail cone pin 11 with a handle so that the skin and the skeleton are aligned.

[0029] Specifically, the skeleton positioning mechanism includes three skeleton support blocks 14, which are arranged left and right and connected to the turning workbench 1. Clamps 15 are provided on the opposite sides of the skeleton support blocks 14 on the left and right sides. The skeleton positioning mechanism adopts the existing technology. The three skeleton support blocks 14 are fixed to the turning workbench 1. Clamps 15 are fixed on the left and right skeleton support blocks 14, which can clamp and fix the skeleton from the left and right directions.

[0030] Specifically, the I-shaped transfer base 2 and the right-angle transfer base 5 are staggered inside and outside, and both the I-shaped transfer base 2 and the right-angle transfer base 5 are usually fixed on the turning workbench 1 and are staggered with each other.

[0031] Specifically, an integrated gantry structure is installed between the right-angle transfer bases (5) located at the outermost layer of the entire tooling, and the integrated gantry structures are arranged at intervals in the middle according to the situation. Figure 2 As shown, the first, fifth, seventh and ninth pairs of the semi-gantries 6 from left to right are connected front to back, and the two semi-gantries 6 are connected as one to improve stability so as to facilitate clamping and fixing of the skin.

[0032] Specifically, gaskets are provided on the front and rear opposite surfaces of the semi-gantry 6, and the gaskets are fixed on the semi-gantry 6 to facilitate pressing the skin and the skeleton partition.

[0033] A method for using a skin frame assembly tool comprises the following steps:

[0034] The skeleton composed of a bottom plate and a plurality of partitions is placed on the skeleton support block 14, and then the bottom plate drilling template 3 is installed on the I-shaped transfer base 2. The bottom plate drilling template 3 can push the skeleton to the middle, and then the skeleton is pushed and clamped by the clamp 15 on the skeleton support block 14 to realize the positioning and fixation of the skeleton. The bottom plate drilling template hole 4 on the bottom plate drilling template 3 can guide the external drilling equipment to drill holes at specific positions of the skeleton bottom plate. After the drilling of the skeleton bottom plate is completed, the bottom plate drilling template 3 is removed, and then the semi-gantry 6 is installed on the right-angle transfer base 5, and the partition drill on the middle semi-gantry 6 is used. The partition drilling template holes 13 on the template 12 can guide the external drilling equipment to drill holes at specific positions of the skeleton partitions. After the drilling on the partitions is completed, the semi-gantry 6 with the partition drilling template 12 in the middle will be completely removed, and the skin will be buckled on the skeleton. The left and right ends of the skin are limited by the screw tail cone pins 11 with handles, and then the hook-shaped screw 9 is clamped to the skin by rotating the locking nut 10 to align the skin with the skeleton. The holes drilled on the skeleton are used for riveting with the skin to achieve the positioning and installation of the skin and the skeleton, and then the clamps 15 are loosened and the semi-gantry 6 on both sides are removed, and the hook-shaped screws 9 are loosened to remove the installed skin and skeleton.

[0035] The above-described embodiments merely express the implementation methods of the present invention, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A skin frame assembly tool, comprising a turning workbench (1), the table top of which can be turned and fixed, characterized in that: The upper end of the turning workbench (1) is provided with a skeleton positioning mechanism, through which the skeleton is positioned and restricted. The upper end of the turning workbench (1) is also provided with a bottom plate drilling jig mechanism and a partition plate drilling jig mechanism; specifically: The bottom plate drilling template mechanism comprises a plurality of I-shaped transfer bases (2) connected to the turning workbench (1), the I-shaped transfer bases (2) are arranged left and right and distributed on the front and rear sides of the skeleton positioning mechanism, and a bottom plate drilling template (3) is provided between the upper ends of the left and right adjacent I-shaped transfer bases (2); The partition plate drilling template mechanism comprises a plurality of right-angle transfer bases (5) connected to the turning workbench (1), wherein the right-angle transfer bases (5) are arranged left and right and distributed on the front and rear sides of the skeleton positioning mechanism; each end of the right-angle transfer base (5) is hinged to a half-gantry (6), and the two half-gantry (6) connected to the right-angle transfer bases (5) arranged on the left and right sides form a gantry structure after installation; The semi-gantry (6) is respectively provided with a first circular arch block (7) and a second circular arch block (8); a hook-shaped screw rod (9) is inserted through the first circular arch block (7), and a locking nut (10) is threadedly connected to the upper end of the hook-shaped screw rod (9), and the hook-shaped screw rod (9) and the locking nut (10) play a role in clamping the skin and the frame; a screw tail cone pin (11) with a handle is threadedly connected to the second circular arch block (8), and the second circular arch block (8) and the screw tail cone pin (11) with a handle play a role in positioning the skin; the semi-gantry (6) is also provided with a partition drilling template (12).

2. The skin frame assembly tool according to claim 1, characterized in that: The bottom plate drilling template (3) is evenly provided with bottom plate drilling template holes (4), and the partition plate drilling template (12) is evenly provided with partition plate drilling template holes (13).

3. The skin frame assembly tool according to claim 2, characterized in that: The skeleton is assembled from a base plate and multiple partitions. The skeleton is positioned and restricted by a skeleton positioning mechanism, the base plate is positioned and guided for drilling by a base plate drilling jig mechanism, and the partition is positioned and guided for drilling by a partition drilling jig mechanism. In addition, the partition drilling jig mechanism also has the function of positioning and fixing the skin.

4. The skin frame assembly tool according to claim 3, characterized in that: The base plate drilling template (3) is detachably connected to the I-shaped transfer base (2); the base plate drilling template hole (4) on the base plate drilling template (3) can guide external drilling equipment to drill holes on the skeleton base plate.

5. The skin frame assembly tool according to claim 3, characterized in that: The semi-gantry (6) is detachably connected to the right-angle transfer base (5); the partition drilling template holes (13) on the partition drilling template (12) can guide external drilling equipment to drill holes on the skeleton partition.

6. The skin frame assembly tool according to claim 1, characterized in that: The skeleton positioning mechanism comprises three skeleton support blocks (14), the skeleton support blocks (14) are arranged on the left and right and connected to the turning workbench (1), and the back surfaces of the skeleton support blocks (14) on the left and right sides are provided with clamps (15); the three skeleton support blocks (14) are fixed to the turning workbench (1), and the clamps (15) are fixed on the left and right skeleton support blocks (14) so ​​as to clamp and fix the skeleton from the left and right directions.

7. The skin frame assembly tool according to claim 1, characterized in that: The I-shaped transfer base (2) and the right-angle transfer base (5) are staggered inside and outside.

8. The skin frame assembly tool according to claim 1, characterized in that: An integrated gantry structure is installed between the right-angle transfer bases (5) located at the outermost layer of the entire tooling, and the integrated gantry structures are arranged at intervals in the middle according to the situation.

9. The skin frame assembly tool according to claim 1, characterized in that: Gaskets are provided on the front and rear opposite surfaces of the semi-gantry (6).

10. A method for using the skin frame assembly tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: First, a frame consisting of a bottom plate and a plurality of partitions is placed on a frame support block (14); Then, the bottom plate drilling template (3) is installed on the I-shaped transfer base (2), the frame is pushed to the middle through the bottom plate drilling template (3), and then the frame is pushed and clamped by the clamp (15) on the frame support block (14) to achieve the positioning and fixation of the frame; and the bottom plate drilling template hole (4) on the bottom plate drilling template (3) is used to guide the external drilling equipment to drill holes on the bottom plate of the frame; Once again, after drilling holes on the skeleton bottom plate is completed, the bottom plate drilling template (3) is removed, the semi-gantry (6) is mounted on the right-angle transfer base (5), and the external drilling equipment is guided to drill holes on the skeleton partition through the partition drilling template holes (13) on the partition drilling template (12) on the middle semi-gantry (6); Finally, after the drilling of the holes on the partition is completed, the semi-gantry (6) with the partition drilling template (12) in the middle is completely removed, the skin is buckled on the frame, and the left and right ends of the skin are limited by the screw tail cone pins (11) with handles. The hook screw (9) is clamped on the skin by turning the locking nut (10), so that the skin and the frame are aligned; the skin is riveted to the skin through the holes drilled on the frame to achieve the positioning and installation of the skin and the frame; the clamps (15) are loosened to remove the semi-gantry (6) on both sides, and the hook screw (9) is loosened to remove the installed skin and frame.

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