CN-117104523-B - Manufacturing method and device for butt joint hole

CN117104523BCN 117104523 BCN117104523 BCN 117104523BCN-117104523-B

Abstract

The invention provides a manufacturing method and a manufacturing device of a butt joint hole, and relates to the technical field of assembly. The manufacturing method of the butt joint hole comprises the steps of manufacturing a first rough positioning hole and a second rough positioning hole on a butt joint area, providing a drill jig matched with the butt joint area, wherein the drill jig comprises the first positioning hole and the second positioning hole, adjusting the butt joint area and the drill jig to be in a horizontal state, enabling projection of the first positioning hole along the axial direction to cover the first rough positioning hole, taking the first positioning hole as a die hole to manufacture a first fine positioning hole, enabling the second positioning hole to rotate around an axis corresponding to the first fine positioning hole within a first set error range, enabling projection of the second positioning hole along the axial direction to cover the second rough positioning hole, and enabling the second positioning hole to be used as the die hole to manufacture a second fine positioning hole. The distance between the first fine positioning hole and the second fine positioning hole is kept to be certain, the height difference is within the allowable range of the first setting error, and the interchange assembly property of the first component and the second component is ensured.

Inventors

Xie Shaiming
LI JINZHONG
CAI ZHENGLIANG
LI TANG
WANG CHANGYUN
Deng Mouqi
WANG ZEHUA

Assignees

成都沃飞天驭科技有限公司
浙江吉利控股集团有限公司

Dates

Publication Date: 20260512
Application Date: 20230830

Claims (10)

1. A method of manufacturing a mating hole for respectively machining a mating hole in a mating region of a first member and a second member that are mated by four holes, the method comprising: manufacturing a first rough positioning hole and a second rough positioning hole on the butt joint area; providing a jig matched and butted with the butted region, wherein the jig comprises a first positioning hole and a second positioning hole; Adjusting the butt joint area and the drilling jig to be in a horizontal state, wherein the projection of the first positioning hole along the axial direction covers the first rough positioning hole, and a first fine positioning hole is manufactured by taking the first positioning hole as a die hole; Rotating the second positioning hole around the axis corresponding to the first fine positioning hole within a first set error range until the second positioning hole axially projects to cover the second coarse positioning hole, and manufacturing a second fine positioning hole by taking the second positioning hole as a die hole; the obtaining of the jig comprises the steps of manufacturing the jig according to the jig digital-to-analog processing; The jig includes a first component jig and a second component jig, the jig made according to the jig digital-to-analog processing including: Respectively manufacturing a first part drill jig main body and a second part drill jig main body according to the first part drill jig and the second part drill jig; Abutting the first component jig body and the second component jig body according to the combined state of the first component and the second component; A first coordination lining hole and a second coordination lining hole are commonly manufactured on the first part drilling jig main body and the second part drilling jig main body, wherein the second coordination lining hole is an arc-shaped slotted hole taking the circle center of the first coordination lining hole as the circle center; and separating the first part drill jig main body and the second part drill jig main body, and respectively installing bushings in the first coordination bushing hole and the second coordination bushing hole, wherein the bushings in the second coordination bushing hole slide along the second coordination bushing hole.
2. The method of manufacturing a mating hole according to claim 1, further comprising: Providing a positioner matched and butted with the butted region, wherein the positioner comprises a first positioning part and a second positioning part; abutting the first positioning portion with the first coarse positioning hole, and abutting the second positioning portion with the second coarse positioning hole; Fitting a part of the first or second component to the interface region to complete the fitting of the first or second component.
3. The method of manufacturing a mating hole according to claim 2, wherein the obtaining of the locator comprises: Obtaining a digital model of a butt joint area; obtaining a positioner digital model according to the docking area digital model; and D, carrying out digital-analog processing according to the positioner to obtain the positioner.
4. A method of making a mating hole according to claim 3, wherein the locator comprises a first component locator and a second component locator, the locator being made according to digital-to-analog processing of the locator, comprising: producing a first component locator body and a second component locator body from the first component locator digital-analog and the second component locator digital-analog, respectively; Abutting the first component positioner body and the second component positioner body in a state in which the first component and the second component are combined; Commonly forming a first bushing hole and a second bushing hole in the first component locator body and the second component locator body; And separating the first component positioner body from the second component positioner body, and installing bushings in the first bushing hole and the second bushing hole respectively.
5. The method for manufacturing a butt joint hole according to claim 1, wherein the obtaining of the drill modulus includes: Obtaining a digital model of a butt joint area; And obtaining a drilling modulus according to the butt joint region modulus.
6. The method of claim 1, wherein the jig is provided with a level and a scale.
7. The method of claim 1, wherein the first component is a fuselage and the second component is a wing.
8. The method of making a mating hole of claim 7, wherein the mating region comprises: the machine body front frame is arranged on the machine body, and the first fine positioning hole and the second fine positioning hole are formed in the machine body front frame; the machine body rear frame is arranged on the machine body, and the first fine positioning hole and the second fine positioning hole are formed in the machine body rear frame; The wing front beam is arranged on the wing and is configured to be connected with the front frame of the fuselage, and the first fine positioning hole and the second fine positioning hole are formed in the wing front beam; The wing back beam is arranged on the wing and is configured to be connected with the fuselage back frame, and the wing back beam is provided with the first fine positioning hole and the second fine positioning hole; after the machine body and the wing are combined, the first fine positioning holes are coaxial, and the second fine positioning holes are coaxial.
9. A docking method for docking a first member and a second member of a four-hole docking, comprising: the butt joint areas of the first component and the second component are provided with butt joint holes manufactured according to the method of any one of claims 1-8; and connecting the butt joint holes at the corresponding positions of the first component and the second component to realize the butt joint of the fuselage and the wing.
10. A device for manufacturing a butt joint hole, comprising: The drilling jig is provided with a first positioning hole and a second positioning hole, and the second positioning hole rotates around the axis of the first positioning hole within a first set error range; the drilling jig comprises a first part drilling jig and a second part drilling jig, wherein the first positioning holes and the second positioning holes of the first part drilling jig and the second part drilling jig are manufactured together in a butt joint state; wherein the obtaining of the jig comprises manufacturing the jig according to the jig digital-to-analog processing; The manufacturing of the drill jig according to the drill jig digital-to-analog processing comprises: Respectively manufacturing a first part drill jig main body and a second part drill jig main body according to the first part drill jig and the second part drill jig; Abutting the first component jig body and the second component jig body according to the combined state of the first component and the second component; A first coordination lining hole and a second coordination lining hole are commonly manufactured on the first part drilling jig main body and the second part drilling jig main body, wherein the second coordination lining hole is an arc-shaped slotted hole taking the circle center of the first coordination lining hole as the circle center; and separating the first part drill jig main body and the second part drill jig main body, and respectively installing bushings in the first coordination bushing hole and the second coordination bushing hole, wherein the bushings in the second coordination bushing hole slide along the second coordination bushing hole.

Description

Manufacturing method and device for butt joint hole Technical Field The invention relates to the technical field of assembly, in particular to a manufacturing method of a butt joint hole, a butt joint method and a manufacturing device. Background In aircraft manufacturing, when parts, assemblies, segments and components of the aircraft have production and use interchangeability, not only can the repair workload during assembly and butt joint be reduced, a large number of working hours are saved, the production cycle is shortened, and the production cost is reduced. The method is favorable for organizing rhythmic mass production, and can avoid the assembly deformation caused by forced assembly and the concentration of assembly residual stress and local stress in the aircraft structure. Meanwhile, when a certain part, assembly, section or component of the aircraft is damaged in use, the spare part can be quickly replaced, and the normal use of the aircraft cannot be influenced due to local damage, so that the service life of the aircraft can be prolonged, and the service performance of the aircraft is ensured. Therefore, the interchangeability of the production and the use of the parts and the components of the aircraft is ensured, and the method has important significance for the manufacture and the use of the aircraft. The aircraft body has complex structure and shape, large number of parts, large size, small rigidity and easy deformation, and has long process flow, various types and number of used process equipment and various links for generating errors in the aircraft manufacturing process. Therefore, many factors affect the exchange and coordination. However, users increasingly require improved product usability, and high accuracy in the coordination and interchange of aircraft structural members is ensured during manufacture. Ensuring interchange and coordination has long become a difficulty in aircraft manufacturing, and is an important point of aircraft manufacturing technology different from general mechanical manufacturing technology, which is the characteristic of aircraft manufacturing technology. Today, the rise of digital assembly coordination technology, computer aided design/computer aided manufacturing CAD/CAM technology is widely used in aircraft manufacturing, whereby the compatibility of mass parts, especially metal parts, manufacturing interchange is resolved. In the assembly process, the assembly is often carried out through four-hole butt joint, namely two parts are respectively provided with two butt joint holes, and the butt joint holes are fixedly connected after corresponding to each other. However, due to errors of the tool, manufacturing errors of the parts, positioning errors and error accumulation of stress release after assembly, the interchange coordination among the components can not be solved. Taking an airplane as an example, in the existing large-scale airplane design, a double-wing design is mostly adopted, left and right wings are respectively in butt joint with a fuselage, and a fork ear joint or a surrounding frame type porous connection mode is adopted for butt joint. To ensure wing body interfacing, two general approaches are used: 1. After the wings and the airframe are independently manufactured, the wings and the airframe are adjusted to the optimal positions on the butt joint platform, and the connecting holes are manufactured together, so that the wings and the airframe are ensured to be in butt joint smoothly. 2. After the wings and the airframe are independently manufactured, the reaming of the finish machining platform is adopted, so that error accumulation in the assembly process of the components is eliminated, and smooth butt joint of the wings and the airframe is ensured. In the first method, although smooth butt joint of the wing body is ensured, mass production is difficult to achieve due to the large amount of work on the butt-joint platform. In addition, the butt joint is coordinated by a hole-sharing mode, so that the interchange cannot be realized. The second mode is suitable for the design of a double-wing structure, and the wing body butt joint adopts fork ear joints or the traditional frame type porous connection, namely the left wing and the right wing are butt jointed at the two sides of the body, so that the mutual influence can not be caused. The application range of the aircraft is expanded to various fields at present in the high-speed development of the aviation industry, and besides the traditional application of the aircraft in national defense and military and high-altitude transportation, the aircraft is gradually used in a large amount in the fields of agriculture, low-altitude transportation, fire protection and the like, the design requirements are different from those of the traditional large-scale airliners and fighters, and the requirements of mass production and production automation are more urgent. Therefore, single wing air