CN109866055B

CN109866055B - Wing rib positioning and drilling clamp and positioning method

Info

Publication number: CN109866055B
Application number: CN201910268466.2A
Authority: CN
Inventors: 王纳新; 孙朝辉; 蔡继钊
Original assignee: Xian Aircraft Industry Group Co Ltd
Current assignee: Xian Aircraft Industry Group Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-12-29
Anticipated expiration: 2039-04-03
Also published as: CN109866055A

Abstract

The invention discloses a wing rib positioning and drilling clamp which comprises a frame, a front beam positioning plate, a rear beam positioning plate, a pressing device and a drilling template, wherein the front beam positioning plate and the rear beam positioning plate are arranged on the frame; the two ends of the framework are provided with finish machining process holes for connecting the drilling template, the front beam positioning plate and the rear beam positioning plate are provided with finish machining positioning holes for positioning and connecting wing ribs and front and rear beams of the wing, the drilling template is provided with connecting holes consistent with the process holes and the positioning holes, the wing ribs are fixed on the drilling fixture through the positioning holes, and the drilling template is fixed on the wing ribs through the process holes and then is drilled and riveted.

Description

Wing rib positioning and drilling clamp and positioning method

Technical Field

The application relates to the technical field of assembly and manufacturing of large-scale aircraft wings, in particular to a wing rib positioning and drilling clamp.

Background

The vertical assembly of the wing box of the airplane wing is the most common assembly and placement posture in the assembly of the wing box of the existing wing. The so-called vertical assembly method, i.e. the plane of the wing chord is placed perpendicular to the ground. The placing method has the advantages that the working space opening is assembled on the wing box of the wings of the medium and small-sized airplanes, and the operation is convenient. However, when a wing box (the wing span of a single side is more than 20 meters, and the maximum chord length is 5-6 meters) of a large aircraft wing is assembled, if vertical assembly is adopted, the height of an assembly tool is too high, and a workshop cannot be accommodated; the deformation of the part under the vertical posture is difficult to control; the vertical assembly is inconsistent with the working state of the wing, and the performance of the wing box in the horizontal posture cannot be accurately reflected. Therefore, horizontal assembly of the wing box of the large-scale wing is one of the main methods for solving the problems, and horizontal assembly tools of the large-scale wing are not circulated in China.

When a large wing box is horizontally assembled, wing ribs of the wings are horizontally arranged due to the change of the placing posture of a product, and the precision requirement of the aerodynamic shape of an airplane cannot be ensured by the traditional method for positioning the appearance of the wing ribs by using a running rule due to the influence of the dead weight of the wing ribs; if the traditional fixed supporting and positioning structure is adopted, the upper and lower wall plates cannot be put on the shelf; if the drilling, positioning and reinforcing structures are separately designed according to the traditional method, the assembly operation space is not opened, and the product assembly work efficiency is low.

In order to solve the problems of rib positioning, hole making and the like during horizontal assembly of a wing box of a wing, a novel airplane rib positioning and drilling device which can conveniently and quickly realize accurate positioning of a rib product, can support and strengthen the rib and simultaneously provides a drilling model needs to be developed.

Disclosure of Invention

The utility model provides an aim at develop one kind can lightly realize rib product accurate positioning fast, can provide the drilling model again, supports the aircraft wing rib location boring grab who strengthens to the rib simultaneously. The device needs to quickly and accurately position and clamp the wing rib, provides an accurate assembly position of the wing rib, and also needs to conveniently clamp and support the wing rib and drill a connecting hole between the wing rib and the front beam and the rear beam.

In order to achieve the above purpose, the following technical scheme is adopted to realize the purpose:

a wing rib positioning and drilling clamp comprises a frame, a front beam positioning plate, a rear beam positioning plate, a pressing device and a drilling template; the two ends of the frame are provided with finish machining process holes for connecting the drilling template and the front and rear beam positioning plates, the distance precision of the process holes is between 0.05mm and 0.1mm, the front and rear beam positioning plates are provided with finish machining positioning holes for positioning and connecting wing ribs and front and rear beams of wings, the distance precision of the positioning holes is between 0.05mm and 0.1mm, the drilling template is provided with connecting holes consistent with the process holes and the positioning holes, the wing ribs are fixed on a drilling fixture through the positioning holes, and the drilling template is drilled and riveted after being fixed on the wing ribs through the process holes. The pressing device comprises a sucker, an arch clamp and a pressing device, the sucker adsorbs the part without holes on the wing rib, the arch clamp is arranged around the operation through holes on the wing rib to clamp and fix the wing rib and the frame, and the pressing device penetrates through the system part through holes on the wing rib to clamp and fix the wing rib and the frame.

The method for positioning by using the wing rib positioning clamp comprises the following steps

1 accurately positioning front and rear beams of wing

2, determining a process hole and a positioning hole on the drilling fixture by using accurate positioning holes on reinforcing ribs of front and rear beams of the wing;

3, mounting the front beam positioning plate and the rear beam positioning plate on the drilling fixture on the frame;

4, fixing the wing ribs of the wings with the drilling fixture through the fabrication holes, the positioning holes and the pressing devices on the frame;

5, connecting the fixed wing ribs of the wings and the drilling clamp with the front and rear beams of the wings through positioning holes on the positioning plates of the front and rear beams;

6, fixing the drilling template on the wing ribs of the wings through the fabrication holes;

7, drilling connecting holes on wing ribs and front and rear beams of the wings through the drilling template.

The positioning and clamping device has the advantages that the rib is positioned and clamped by the aid of the process holes and the positioning holes which are formed in product parts, accuracy of rib positioning, particularly rib appearance positioning, is greatly improved, and the positioning and clamping device is simple and light in structure and convenient to operate; the method realizes the accurate drilling of the connection holes between the wing rib and the front and rear beams and the rigid reinforcement of the thin-wall wing rib to prevent the deformation of the thin-wall wing rib while realizing the positioning of the wing rib. The positioning, drilling and assembling of the horizontal assembling wing rib of the wing have universality.

This application is described in further detail below with reference to the accompanying drawings:

drawings

FIG. 1 is a schematic view of a wing rib positioning and drilling fixture

FIG. 2 is a schematic view of a hole locating hole

FIG. 3 schematic diagram of a wing rib positioning and drilling fixture

The numbering in the figures illustrates: 1. a front beam positioning plate; 2. a back beam positioning plate; 3. drilling a template; 4. a frame; 5. a suction cup; 6. an arcuate clamp; 7. a compactor; 8. a wing front spar; 9. a wing back spar; 10. a wing rib; 11. a fabrication hole; 12. locating hole

Detailed Description

Referring to fig. 1-3, a wing rib positioning and drilling fixture comprises a frame 4, a front beam positioning plate 1, a rear beam positioning plate 2, a pressing device and a drilling template 3; the two ends of the frame 4 are provided with finish machining process holes 11 for connecting the drill plate 3 and the front and rear beam positioning plates, the distance precision of the process holes 11 is between 0.05mm and 0.1mm, the front and rear beam positioning plates are provided with finish machining positioning holes 12 which are in positioning connection with the wing ribs 10, the wing front beams 8 and the wing rear beams 9, the distance precision of the positioning holes 12 is between 0.05mm and 0.1mm, the drill plate 3 is provided with connecting holes which are consistent with the process holes 11 and the positioning holes 12, the wing ribs 10 are fixed on a drilling clamp through the positioning holes 12, and the drill plate 3 is fixed on the wing ribs 10 through the process holes 11 and then is drilled and riveted. The pressing device comprises a sucker 5, an arch clamp 6 and a pressing device 7, wherein the sucker 5 is adsorbed on a part without holes on a wing rib 10, the arch clamp 6 is arranged around an operation through hole on the wing rib 10 to clamp and fix the wing rib 10 and a frame 4, and the pressing device 7 penetrates through a system part through hole on the wing rib 10 to clamp and fix the wing rib 10 and the frame 4.

1 accurately positioning front wing beam 8 and rear wing beam 9

2, determining a process hole 11 and a positioning hole 12 on the drilling fixture by using accurate positioning holes on reinforcing ribs of front and rear beams of the wing;

3, mounting the front beam positioning plate and the rear beam positioning plate on the drilling fixture on the frame 4;

4, fixing the wing ribs 10 of the wings with a drilling clamp through the fabrication holes 11, the positioning holes 12 and the pressing device on the frame 4;

5, connecting the fixed wing ribs 10 and the drilling clamp with the front and rear wing beams through positioning holes 12 on the front and rear beam positioning plates;

6, fixing the drilling template 3 on the wing rib 10 through a fabrication hole 11;

and 7, drilling connecting holes between the wing ribs 10 and the front and rear beams of the wing through the drill plate 3.

Claims

1. A wing rib positioning and drilling clamp is characterized by comprising a frame, a front beam positioning plate, a rear beam positioning plate, a pressing device and a drilling template; the two ends of the framework are provided with finish machining process holes for connecting the drill plate, the front beam positioning plate and the rear beam positioning plate are provided with finish machining positioning holes for positioning and connecting wing ribs and front and rear beams of the wing, the drill plate is provided with connecting holes consistent with the finish machining process holes and the finish machining positioning holes, the wing ribs are fixed on the drilling clamp through the finish machining positioning holes, and the drill plate is fixed on the wing ribs through the finish machining process holes and then is drilled and riveted.

2. The wing rib positioning and drilling fixture of claim 1, wherein the distance precision of the finish machining process hole is between 0.05mm and 0.1 mm.

3. The wing rib positioning and drilling fixture according to claim 1, wherein the distance precision of the finish machining positioning hole is between 0.05mm and 0.1 mm.

4. The wing rib positioning and drilling fixture of claim 1, wherein the pressing device comprises a suction cup, a bow clamp and a pressing device.

5. The wing rib positioning and drilling fixture of claim 4, wherein the suction cup sucks a part of the wing rib without holes.

6. The wing rib positioning and drilling fixture of claim 4, wherein the arch clamp is arranged on the wing rib and is used for operating around the through holes to clamp and fix the wing rib and the frame.

7. A wing rib locating and drilling jig according to claim 4, wherein the packer passes through a system component aperture in the wing rib to clamp the rib to the frame.

8. A method of locating a wing rib, comprising the steps of:

8-1 accurately positioning front and rear beams of the wing;

8-2, determining a process hole and a positioning hole on the drilling fixture by using the accurate positioning holes on the reinforcing ribs of the front and rear beams of the wing;

8-3, mounting a front beam positioning plate and a rear beam positioning plate on the drilling fixture on the frame;

8-4, fixing the wing ribs of the wings with the drilling clamp through the fabrication holes, the positioning holes and the pressing devices on the frame;

8-5, connecting the fixed wing ribs of the wings and the drilling clamp with the front and rear beams of the wings through positioning holes in the positioning plates of the front and rear beams;

8-6, fixing the drilling template on the wing ribs of the wings through the fabrication holes;

8-7, drilling connecting holes on wing ribs and front and rear beams of the wings through a drilling template.