Tool clamp for rear fuselage of unmanned aerial vehicle

Abstract

The utility model discloses a work fixture for a rear fuselage of an unmanned aerial vehicle, which is used for positioning and assembling a skin, an internal part and a tail part of the rear fuselage, and the internal part is provided with a fastening hole. The tool clamp comprises a base, a framework arranged on the base, a plurality of positioning blocks distributed in the circumferential direction of the framework, a plurality of pre-punching units and a plurality of auxiliary supports, the framework is provided with a step used for supporting an internal part, the step is provided with a positioning unit used for positioning and installing the internal part, and the positioning units are used for positioning and installing the internal part. The multiple positioning blocks are used for circumferentially limiting the skin, the multiple pre-punching units comprise positioning frames and positioning plates arranged on the positioning frames, positioning holes corresponding to the fastening holes are formed in the positioning plates, and the multiple auxiliary supports are used for bearing and positioning the tail part. The problems that the assembling efficiency is low and the assembling precision is poor in the rear fuselage assembling process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle assembly, in particular to a tooling fixture used for a rear fuselage of a unmanned aerial vehicle. Background Art

[0002] Aircraft assembly is the process of accurately positioning each part or assembly according to the product technical requirements and assembling them into components or products using the specified connection method. At present, in the assembly process of the rear fuselage of drones, there are many rear fuselage processing steps, a large number of assembly parts, and they cannot form components with each other, so the assembly is difficult. There are great difficulties in positioning many parts inside the fuselage, so the rear fuselage assembly is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] In view of the defects of the above prior art, the utility model provides a tooling fixture for the rear fuselage of a UAV, so as to improve the assembly efficiency and assembly accuracy of the rear fuselage of the UAV.

[0004] The utility model is implemented by the following technical solutions:

[0005] A tooling fixture for the rear fuselage of an unmanned aerial vehicle is used for positioning and assembling the skin, internal parts and tail parts of the rear fuselage, wherein the internal parts are provided with fastening holes; the tooling fixture comprises: a base, a frame arranged on the base, a plurality of positioning blocks circumferentially distributed around the frame, a plurality of pre-punched units and a plurality of auxiliary brackets, wherein the frame is provided with a step for supporting the internal parts, the step is provided with a positioning unit for positioning and installing the internal parts, the plurality of positioning blocks are used for circumferentially limiting the skin, the plurality of pre-punched units each comprise a positioning frame and a positioning plate arranged on the positioning frame, the positioning plate is provided with positioning holes corresponding to the fastening holes, and the plurality of auxiliary brackets are used for carrying and positioning the tail parts.

[0006] Furthermore, the internal parts include a first bulkhead, a second bulkhead, a first annular frame, a second annular frame and a hanging beam, the steps on the skeleton include a first step for supporting the first bulkhead, a second step for supporting the second bulkhead, a third step for supporting the first annular frame, and a fourth step for supporting the second annular frame, the skeleton is also provided with a positioning groove for positioning the hanging beam, the hanging beam is placed in the positioning groove and is used to connect the first annular frame and the second annular frame, and the positioning unit is provided on the first step, the second step and the fourth step.

[0007] Furthermore, the positioning unit includes a first positioning pin, a second positioning pin and a third positioning pin, and the first bulkhead and the second annular frame of the second bulkhead are respectively provided with through holes adapted to the first positioning pin, the second positioning pin and the third positioning pin.

[0008] Further, the side portions of the first annular frame and the second annular frame are both provided with fastening holes, and two positioning plates are provided, and the positioning hole of each positioning plate is aligned with the corresponding fastening hole.

[0009] Furthermore, the positioning block is provided with a positioning step portion, and the positioning step portion defines a limiting arc surface that can fit with the outer surface of the skin.

[0010] Furthermore, the positioning plate includes a first plate body vertically connected to the positioning frame and a second plate body vertically connected to the first plate body, the second plate body is connected to an end of the first plate body away from the positioning frame, and the positioning hole is opened on the second plate body.

[0011] Furthermore, a bottom plate is provided at the bottom of the positioning frame, and the bottom plate is detachably fixed on the base.

[0012] Furthermore, a slot is provided on the top of the auxiliary bracket, and the slot is tilted downward toward the frame.

[0013] Compared with the prior art, the beneficial effects of the present invention include at least:

[0014] The tooling fixture of the utility model positions and assembles the skin, internal parts and tail parts of the rear fuselage through structures such as a skeleton, a positioning unit, a positioning block, a pre-punching unit, and an auxiliary bracket, which can ensure the stability of the clamped parts and achieve a better positioning effect; the structure is simple and the operation is easy, and the rear fuselage of the drone can be assembled more simply and practically, which greatly improves the manufacturing efficiency of the drone and can effectively solve the problems of excessive assembly errors and assembly efficiency during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a tooling fixture for the rear fuselage of a drone according to an embodiment of the utility model;

[0016] Figure 2 This is a top view of a tooling fixture for the rear fuselage of a drone according to an embodiment of the utility model;

[0017] Figure 3 This is one of the schematic diagrams of installing the internal parts of the skin on the fixture according to the embodiment of the utility model;

[0018] Figure 4 This is a second schematic diagram of installing the internal parts of the skin on the fixture according to the embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of installing a skin on a fixture according to an embodiment of the utility model;

[0020] Figure 6 for Figure 5 A cross-sectional view of

[0021] Figure 7 It is a schematic diagram of installing the tail part on the fixture according to an embodiment of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the positioning block of an embodiment of the utility model;

[0023] Fig. 9 This is a schematic structural diagram of a pre-punching auxiliary unit according to an embodiment of the utility model;

[0024] Fig.10 This is a schematic diagram of the structure of an auxiliary bracket according to an embodiment of the utility model;

[0025] In the figure: 1. skin; 2. first bulkhead; 3. second bulkhead; 4. first annular frame; 5. second annular frame; 6. hanging beam; 7. vertical tail assembly; 8. left V-tail assembly; 9. right V-tail assembly; 10. base; 20. skeleton; 21. first step; 22. second step; 23. third step; 24. fourth step; 25. positioning groove; 30. positioning block; 31. positioning step portion; 32. limiting arc surface; 40. pre-punching unit; 41. positioning frame; 42. positioning plate; 420. first plate body; 421. second plate body; 422. positioning hole; 43. bottom plate; 50. auxiliary bracket; 51. slot; 60. first positioning pin; 70. second positioning pin; 80. third positioning pin. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0027] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0028] like Figure 1-10As shown, the utility model provides a tooling fixture for the rear fuselage of an unmanned aerial vehicle, which is used to position and assemble the skin 1, internal parts and tail parts of the rear fuselage, and the internal parts are provided with fastening holes; wherein the tooling fixture comprises: a base 10, a skeleton 20 arranged on the base 10, a plurality of positioning blocks 30 circumferentially distributed around the skeleton 20, a plurality of pre-punched units 40 and a plurality of auxiliary brackets 50, the skeleton 20 is provided with a step for supporting the internal parts, the step is provided with a positioning unit for positioning and installing the internal parts, the plurality of positioning blocks 30 are used for circumferentially limiting the skin 1, the plurality of pre-punched units 40 each comprise a positioning frame 41 and a positioning plate 42 arranged on the positioning frame 41, the positioning plate 42 is provided with positioning holes 422 corresponding to the fastening holes, and the plurality of auxiliary brackets 50 are used for carrying and positioning the tail parts.

[0029] See also Figure 1 , Figure 3 and Figure 4 First, install the internal parts on the step, and position and fix the internal parts through the positioning unit, then assemble the skin 1 on the skeleton 20, and limit the skin 1 circumferentially through the positioning block 30 to prevent the skin 1 from displacement, so as to facilitate the subsequent punching and riveting on the skin 1; then install the pre-punching unit 40 on the base 10 at the target position, at which the positioning hole 422 on the positioning plate 42 is just aligned with the fastening hole of the internal part, so that there is no need to measure or draw lines, and the skin 1 can be quickly punched and riveted to connect the skin 1 and the internal parts, thereby greatly improving the assembly efficiency; finally, the tail part is positioned and installed on the auxiliary bracket 50, and the tail part is positioned on the skin 1, so that the subsequent punching, riveting, bolting and other steps are more convenient.

[0030] The tooling fixture of the utility model positions and assembles the skin 1, internal parts and tail parts of the rear fuselage through structures such as a skeleton 20, a positioning unit, a positioning block 30, a pre-punching unit 40, and an auxiliary bracket 50. It has a simple structure and is easy to operate, and can realize a simpler and more practical assembly of the rear fuselage of the UAV, greatly improving the manufacturing efficiency of the UAV, and can effectively solve the problems of excessive assembly errors and assembly efficiency during assembly.

[0031] As a preferred embodiment, the internal parts include a first bulkhead 2, a second bulkhead 3, a first annular frame 4, a second annular frame 5 and a hanging beam 6. The steps on the skeleton 20 include a first step 21 for supporting the first bulkhead 2, a second step 22 for supporting the second bulkhead 3, a third step 23 for supporting the first annular frame 4, and a fourth step 24 for supporting the second annular frame 5. The skeleton 20 is also provided with a positioning groove 25 for positioning the hanging beam 6. The hanging beam 6 is placed in the positioning groove 25 and is used to connect the first annular frame 4 and the second annular frame 5. The positioning unit is provided on the first step 21, the second step 22 and the fourth step 24.

[0032] In this embodiment, the first bulkhead 2 and the second bulkhead 3 are respectively assembled on the first step 21 and the second step 22 by means of a positioning unit, so that the degrees of freedom of the first bulkhead 2 and the second bulkhead 3 in the X and Y directions on the fixture are limited. When the skin 1 is to be installed, the outer surfaces of the first bulkhead 2 and the second bulkhead 3 are fitted with the inner surface of the skin 1 to locate the Z direction, thereby facilitating the subsequent punching and riveting with the skin 1 and improving the assembly efficiency; the second annular frame 5 is assembled on the fourth step 24 by means of a positioning unit, so that the degrees of freedom of the second annular frame 5 in the X and Y directions on the fixture are limited. When the skin 1 is to be installed, the first annular frame 4 and the second annular frame 5 are fitted with the inner surface of the skin 1 to locate the Z direction. After being fixed, they are punched and riveted together with the skin 1. This can improve the manufacturing efficiency, reduce the manufacturing and assembly errors, and facilitate the subsequent punching and riveting. The hanging beam 6 is placed in the positioning groove 25 and is used to connect the first annular frame 4 and the second annular frame 5. The Z direction of the hanging beam 6 is positioned by the first annular frame 4 and the second annular frame 5. After the positioning is completed, the hanging beam 6 and the first annular frame 4 and the second annular frame 5 are framed and punched, and fixed with fixing pins to facilitate later riveting.

[0033] As a preferred embodiment, see Figure 1-3 The positioning unit includes a first positioning pin 60, a second positioning pin 70 and a third positioning pin 80, and the first bulkhead 2, the second bulkhead 3 and the second annular frame 5 are respectively provided with through holes adapted to the first positioning pin 60, the second positioning pin 70 and the third positioning pin 80.

[0034] In this embodiment, the through hole of the first bulkhead 2 is inserted into the first positioning pin 60, the through hole of the second bulkhead 3 is inserted into the second positioning pin 70, and the through hole of the second annular frame 5 is inserted into the third positioning pin 80, so that the first bulkhead 2 can be quickly positioned and fixed on the first step 21, the second bulkhead 3 can be positioned and fixed on the second step 22, and the second annular frame 5 can be positioned and fixed on the fourth step 24. The positioning unit adopts a positioning pin structure, which has a simple structure, simple operation, and low manufacturing cost.

[0035] As a preferred embodiment, see Figure 5-6 The first annular frame 4 and the second annular frame 5 are both provided with fastening holes on their sides, and two positioning plates 42 are provided, and the positioning hole 422 of each positioning plate 42 is aligned with the corresponding fastening hole.

[0036] In this embodiment, the positioning frame 41 is provided with two positioning plates 42 in the vertical direction, and the positioning holes 422 of each positioning plate 42 correspond to the fastening holes of the first annular frame 4 and the second annular frame 5 respectively. In this way, after the pre-punching unit 40 is installed on the base 10, the positioning holes 422 are just aligned with the fastening holes. When punching, holes are punched directly from the positioning holes 422, and the skin 1 and the first annular frame 4 and the second annular frame 5 can be punched and fixed without measuring or drawing lines, which greatly improves the assembly efficiency.

[0037] It should be noted that the number of positioning plates 42 is set according to the number of internal parts.

[0038] As a preferred embodiment, see Figure 8 The positioning block 30 is provided with a positioning step portion 31 , and the positioning step portion 31 defines a limiting arc surface 32 that can fit with the outer surface of the skin 1 .

[0039] In this embodiment, after the skin 1 is installed on the frame 20, the lower end surface of the skin 1 abuts against the positioning step 31 of the positioning block 30, and the outer surface of the skin 1 fits with the limiting arc surface 32, which has a better positioning effect.

[0040] As a preferred embodiment, see Fig. 9 The positioning plates 42 include a first plate body 420 vertically connected to the positioning frame 41 and a second plate body 421 vertically connected to the first plate body 420. The second plate body 421 is connected to one end of the first plate body 420 away from the positioning frame 41, and the second plate body 421 is provided with the positioning hole 422.

[0041] As a preferred embodiment, see Fig. 9 The bottom of the positioning frame 41 is provided with a bottom plate 43, and the bottom plate 43 is detachably fixed to the base 10. In this embodiment, after the perforation of the skin 1 is completed, the pre-perforating unit 40 is removed from the base 10 to facilitate the subsequent other processes.

[0042] As a preferred embodiment, see Figure 7 and Fig.10 A slot 51 is provided at the top of the auxiliary bracket 50 , and the slot 51 is tilted downward toward the direction of the frame 20 .

[0043] In this embodiment, the tail parts include a vertical tail assembly 7, a left V-tail assembly 8 and a right V-tail assembly 9, and three corresponding auxiliary brackets 50 are provided. The vertical tail assembly 7, the left V-tail assembly 8 and the right V-tail assembly 9 are respectively clamped in the corresponding slots 51 of the auxiliary brackets 50. The arrangement of the slots 51 can improve the stability of the support, improve the positioning effect, and make subsequent punching, riveting, bolting and other steps more convenient.

[0044] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A fixture for the rear fuselage of an unmanned aerial vehicle, used for positioning and assembling the skin (1), internal parts and tail parts of the rear fuselage, wherein the internal parts are provided with fastening holes; characterized in that: include: A base (10), a frame (20) arranged on the base (10), a plurality of positioning blocks (30) circumferentially distributed around the frame (20), a plurality of pre-punching units (40) and a plurality of auxiliary brackets (50), wherein the frame (20) is provided with a step for supporting internal parts, the step is provided with a positioning unit for positioning and installing the internal parts, the plurality of positioning blocks (30) are used for circumferentially limiting the skin (1), the plurality of pre-punching units (40) each include a positioning frame (41) and a positioning plate (42) arranged on the positioning frame (41), the positioning plate (42) is provided with a positioning hole (422) corresponding to the fastening hole, and the plurality of auxiliary brackets (50) are used for carrying and positioning the tail parts.

2. The fixture for the rear fuselage of a drone according to claim 1, characterized in that: The internal parts include a first bulkhead (2), a second bulkhead (3), a first annular frame (4), a second annular frame (5) and a hanging beam (6); the steps on the frame (20) include a first step (21) for supporting the first bulkhead (2), a second step (22) for supporting the second bulkhead (3), a third step (23) for supporting the first annular frame (4), and a fourth step (24) for supporting the second annular frame (5); the frame (20) is also provided with a positioning groove (25) for positioning the hanging beam (6); the hanging beam (6) is placed in the positioning groove (25) and is used to connect the first annular frame (4) and the second annular frame (5); the first step (21), the second step (22) and the fourth step (24) are all provided with the positioning unit.

3. The fixture for the rear fuselage of a drone according to claim 2, characterized in that: The positioning unit comprises a first positioning pin (60), a second positioning pin (70) and a third positioning pin (80); the first bulkhead (2), the second bulkhead (3) and the second annular frame (5) are respectively provided with through holes adapted to the first positioning pin (60), the second positioning pin (70) and the third positioning pin (80).

4. The fixture for the rear fuselage of a drone according to claim 2, characterized in that: The sides of the first annular frame (4) and the second annular frame (5) are both provided with fastening holes, and two positioning plates (42) are provided, and the positioning hole (422) of each positioning plate (42) is aligned with the corresponding fastening hole.

5. The fixture for the rear fuselage of a drone according to claim 1, characterized in that: The positioning block (30) is provided with a positioning step portion (31), and the positioning step portion (31) defines a limiting arc surface (32) that can fit with the outer surface of the skin (1).

6. The fixture for the rear fuselage of a drone according to claim 1, characterized in that: The positioning plate (42) comprises a first plate body (420) vertically connected to the positioning frame (41) and a second plate body (421) vertically connected to the first plate body (420), wherein the second plate body (421) is connected to an end of the first plate body (420) away from the positioning frame (41), and the positioning hole (422) is provided on the second plate body (421).

7. The fixture for the rear fuselage of a drone according to claim 6, characterized in that: A bottom plate (43) is provided at the bottom of the positioning frame (41), and the bottom plate (43) is fixed on the base (10) in a detachable manner.

8. The fixture for the rear fuselage of a drone according to claim 1, characterized in that: A clamping slot (51) is provided on the top of the auxiliary bracket (50), and the clamping slot (51) is arranged to be inclined downward in the direction of the frame (20).

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