CN101028870A

CN101028870A - Method for digitally assembling spatial composite angle positioner tool

Info

Publication number: CN101028870A
Application number: CNA2007100109362A
Authority: CN
Inventors: 梁丽岩; 祁华
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2007-04-12
Filing date: 2007-04-12
Publication date: 2007-09-05
Anticipated expiration: 2027-04-12
Also published as: CN100491202C

Abstract

The method for digitally assembling the tool with the space compound angle positioner is characterized in that the space compound angle positioner forming a space compound angle with a tool basic coordinate system is arranged on the digital assembly tool, so that the problem that the difficulty in adjusting the coordinate system value of the positioner is high when the tool with the space compound angle positioner is assembled is solved, and the assembly period of the tool is long; the method comprises the following steps: 1. establishing a self coordinate system of a supporting plate in the tool on a tool mathematical model; 2. measuring a tool ball coordinate system value of a locator on a supporting plate on a tool mathematical model; 3. flatly placing and fixing the supporting plate on the platform; 4. establishing a self coordinate system of the supporting plate according to the three tool balls on the supporting plate by using a laser tracker; 5. preassembling a positioner on a supporting plate by using a laser tracker; 6. the supporting plate preassembled with the positioner is arranged on the tool; the advantages are that: the spatial composite angle positioner eliminates three degrees of freedom in six degrees of freedom of the positioner in a manner of converting a coordinate system, so that the adjustment is visual, the difficulty is reduced, and the adjustment efficiency is improved; the method is used for manufacturing the aircraft tool.

Description

Digitalisation is equipped with the method for space compound angle steady arm frock

Technical field: this method is to be used in to adopt the base coordinate of installing on the digitalization assembly frock with frock to be tied to form space compound angle steady arm.

Background technology: at present, tool structure is to be made of frock basic framework, supporting plate, steady arm; Supporting plate is installed on the frock basic framework, steady arm is installed on the supporting plate, and these supporting plates and steady arm become the space compound angle with the system of axes axle of base coordinate on basic framework system, adopt digitalization assembly frock, normally on the frock basic framework, the appropriate location is provided with four datum target points and sets up base coordinate system for the basis, under this base coordinate system, press each steady arm in the given instrument ball value assembly tooling of frock drawing then, utilize laser tracker to measure the instrument ball X that adjusts each steady arm, Y, the Z value, when adjusting one of them coordinate set occurrence, all the other two values can produce little change thereupon, make the assembling adjustment of steady arm, very difficult, time-consuming, frock is long assembly period.

Summary of the invention: the purpose of the invention provides the steady arm that has the space compound angle in a kind of assembly tooling, mode with system of converted coordinate system, improve and transfer dress efficient, the digitalisation of shortening assembly period is equipped with the method for space compound angle steady arm frock; The purpose of the invention is to realize by following step:

Digitalisation is equipped with the method for space compound angle steady arm frock: its step:

1) set up supporting plate self system of axes in the frock on the frock math modeling: utilizing computing machine is the system of axes that benchmark is set up supporting plate self with three instrument balls on the supporting plate on the math modeling of frock;

2) under the system of axes of supporting plate self, measuring locator tool spherical coordinates value on the supporting plate on the frock math modeling: utilize the measuring tool in the software, under the system of axes of supporting plate self, measuring the instrument spherical coordinates value of each steady arm on the supporting plate on the frock math modeling;

3) supporting plate is kept flat be fixed on the platform;

4) utilize laser tracker to aim at principle with axle and set up supporting plate self system of axes by three instrument balls on the supporting plate;

5) on supporting plate, utilize laser tracker to position the pre-assy of device: according to step 2) utilize the measuring tool in the software to adjust in the instrument spherical coordinates value of under the system of axes of supporting plate self, measuring each steady arm on the supporting plate on the frock math modeling, and make the bolt hole that connects steady arm, pre-assy;

6) the supporting plate general assembly that steady arm will be housed in advance is on the frock: utilize laser tracker with frock on base coordinate system each steady arm is carried out accurate adjustment, make the connection cylinder pin hole, fix with straight pin.

The advantage of the invention: owing to adopted supporting plate self system of axes of on the math modeling of frock, setting up in the frock, and on the frock math modeling, utilize measuring tool in the CATIAV5 software, under the system of axes of supporting plate self, measuring the instrument spherical coordinates value of each steady arm on the supporting plate on the frock math modeling, and utilize laser tracker on supporting plate, set up with math modeling in consistent system of axes and utilize the steady arm coordinate figure that on math modeling, records, on supporting plate, utilize laser tracker to adjust the pre-assy steady arm, carry out the frock general assembly again, to the steady arm accurate adjustment, owing on the frock math modeling, set up the supporting plate system of axes, with converted coordinate is mode, eliminate the three degree of freedom in the steady arm six-freedom degree, it is directly perceived relatively to adjust steady arm with frock base coordinate system, easy operating, difficulty reduces, and efficiency of assembling is improved.

Description of drawings:

Fig. 1 is that the tool structure and the base coordinate of the tail bone assembling usefulness of aircraft is scheme drawing;

Fig. 2 is supporting plate 2 and supporting plate self the system of axes figure among Fig. 1;

Fig. 3 be among Fig. 1 A to view (steady arm of installing on supporting plate and the supporting plate);

Fig. 4 is the birds-eye view of Fig. 3.

Label 1 among Fig. 1 is four basic target points that are provided with on the frock basic framework, i.e. instrument ball point, and label 2 is a supporting plate, three the instrument ball points of label 10 for being provided with on the supporting plate, label 3 to 9 is steady arms of installing on the supporting plate.

The specific embodiment: the design frock is to use CATIA V5 software to set up the math modeling of frock on computers, the digitalisation frock, be by basic framework, supporting plate, steady arm, and four benchmark instrument ball object points are set at basic framework, at supporting plate, three instrument ball object points are set respectively on the steady arm to be constituted, Fig. 1 is that frock math modeling structure machine and the base coordinate that the frock of the tail bone assembling usefulness of aircraft is set up with CATIAV5 software is scheme drawing, label 1 is four benchmark instrument ball object points on the basic framework, label 10 is three instrument ball object points on the supporting plate, constitutes the space compound angle in supporting plate and the steady arm base coordinate system with four datum target point foundation on the basic framework.3～9 labels are the steady arm with space compound angle among Fig. 1, and supporting plate 2 and steady arm 3 to 9 in assembling aircraft tail bone frock are to adopt following steps, realize the conversion of system of axes, improve and adjust efficient, shorten assembly period.

Digitalisation is equipped with the method for space compound angle steady arm frock: step:

1) set up supporting plate self system of axes in the frock on the frock math modeling: using CATIAV5 software three instrument balls on the supporting plate 2 of the frock math modeling of the tail bone assembling usefulness of aircraft on computers is that benchmark is set up supporting plate self system of axes, be made as initial point with one of them instrument ball, selecting another instrument ball and initial point line is directions X, and the direction of selecting last instrument ball and X-axis is Y direction such as Fig. 2;

2) measuring each locator tool spherical coordinates value on the supporting plate under the system of axes of supporting plate self on the frock math modeling: the aircraft tail bone that utilizes CATIAV5 software to set up on computers assembles on the frock math modeling of usefulness, measures the instrument spherical coordinates value of the steady arm 3 to 9 that is contained on the supporting plate 2 successively at the measuring tool that utilizes CATIAV5 software under the system of axes of supporting plate self;

3) supporting plate is kept flat be fixed on the platform: select the workplatform of hold down groove and connecting element for use, can be fixed on the platform with watering sand;

4) utilize laser tracker to aim at the system of axes that principle is set up supporting plate self with axle by three instrument balls on the supporting plate, this system of axes is consistent with Fig. 2 with newly-established system of axes direction on the frock math modeling, three instrument balls provide when the frock drawing designs, after setting up supporting plate self system of axes, access the Z value of steady arm earlier, mobile locator can access X in the plane that is parallel to the XY plane then, the Y value has promptly been eliminated steady arm Z direction and has been moved, rotate around X-axis, rotate three degree of freedom around Y-axis, make and adjust intuitively, difficulty reduces, install and adjust the efficient height, aiming at principle with axle and set up supporting plate self system of axes, is exactly with some controlling point as system of axes, and another o'clock is with controlling an axle at first o'clock, the face of a bit just can controlling is arranged again, promptly choose any as initial point, a bench mark is a directions X, and another bench mark is the Y direction.

5) on supporting plate, utilize laser tracker to position the pre-assy of device: according to step 2) utilize the measuring tool of CATIAV5 software, adjust in the instrument spherical coordinates set occurrence of under the system of axes of supporting plate self, measuring steady arm 3 to 9 on the supporting plate on the frock math modeling, earlier the Z value of locator tool ball is adjusted out, then steady arm is moved in the plane that is parallel to the XY plane, can adjust X, Y value, in instrument ball value is adjusted to the 0.1mm scope of theoretical tolerance value, make the bolt hole that connects steady arm, pre-assy.

6) the supporting plate general assembly that steady arm will be housed in advance is on frock: the supporting plate that the prepackage steady arm is housed in the frock with aircraft tail bone assembling usefulness, utilize laser tracker with base coordinate system on the frock, each steady arm is carried out accurate adjustment, the data of accurate adjustment are that the designer provides on the frock drawing, the designer is after design frock digital-to-analogue, base coordinate system is set on frock, under base coordinate system, measure each supporting plate, instrument spherical coordinates value on each steady arm, in the frock drawing, provide, as the numerical value of frock assembling.When coordinate figure is adjusted within the theoretical tolerance value, make the connection cylinder pin hole, fix with straight pin.

Claims

1, digitalisation is equipped with the method for space compound angle steady arm frock: its step:

1) set up supporting plate self system of axes in the frock on the frock digital model: utilizing computing machine is the system of axes that benchmark is set up supporting plate self with three instrument balls on the supporting plate on the math modeling of frock;

3) supporting plate is kept flat be fixed on the platform;