CN110006341A - A kind of bracket processing technology out of my cabin based on multimetering feedback - Google Patents

A kind of bracket processing technology out of my cabin based on multimetering feedback Download PDF

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Publication number
CN110006341A
CN110006341A CN201910271689.4A CN201910271689A CN110006341A CN 110006341 A CN110006341 A CN 110006341A CN 201910271689 A CN201910271689 A CN 201910271689A CN 110006341 A CN110006341 A CN 110006341A
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CN
China
Prior art keywords
processed
cabin
bracket
multimetering
tested
Prior art date
Application number
CN201910271689.4A
Other languages
Chinese (zh)
Inventor
仉恒毅
张霞
王天明
刘汉良
高立国
张斌
陈少君
张佳朋
Original Assignee
北京卫星制造厂有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 北京卫星制造厂有限公司 filed Critical 北京卫星制造厂有限公司
Priority to CN201910271689.4A priority Critical patent/CN110006341A/en
Publication of CN110006341A publication Critical patent/CN110006341A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/002Measuring arrangements characterised by the use of optical means for measuring two or more coordinates
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/24Measuring arrangements characterised by the use of optical means for measuring contours or curvatures

Abstract

A kind of bracket processing technology out of my cabin based on multimetering feedback, is related to large-scale section structure bracket positioning process field out of my cabin;Include the following steps: Step 1: pasting 4 targets on the face to be processed of bracket to be processed;Step 2: laser tracker scanning survey obtains spatial position of the face to be processed relative to tested cabin;Obtain coordinate of 4 targets relative to areal coordinate system oxyz to be processed;The processing capacity that machined surface is processed is treated Step 3: obtaining;Step 4: treating machined surface on the basis of coordinate of 4 targets relative to areal coordinate system oxyz to be processed and being processed, the processing capacity determined in step 5 is removed;Step 5: the bracket after processing is reset on tested cabin side wall, calibration detection is carried out to reset after-poppet and normal place comparison using laser tracker;The present invention realizes the amendment for inevitably building up error in welding and assembling process to large-scale cabin outside support, the installation accuracy requirement of the bracket met.

Description

A kind of bracket processing technology out of my cabin based on multimetering feedback

Technical field

The present invention relates to a kind of large-scale section structure, bracket positioning process field, especially one kind are based on multimetering out of my cabin The bracket processing technology out of my cabin of feedback.

Background technique

Processing comprising a variety of brackets assembly large and complex structure when, in particular spacecraft structure when, in order to meet sky Between posture effective control and load normal operation, many equipment parts are proposed linear ruler relevant to whole device coordinate system Very little and morpheme size tolerance.Since overall structure inevitably builds up error, equipment installation in welding and assembling process Part is difficult disposably to reach required precision after mounting, this is just needed after the completion of overall structure assemble welding, then is put It sets and carries out online Combined machining on heavy duty machine tools.However, as the structure size of demand constantly increases, online Combined machining meeting It has the following problems:

(1) need to be equipped with enough strokes and expensive ultra-large type machining center and multiple large-scale toolings;

(2) Large Spacecraft structure carried out on being transported to platen Combined machining process risk factor it is more;

(3) online Combined machining occupies manufacture main line, plays critical impact to life cycle of the product.

Summary of the invention

It is an object of the invention to overcome the above-mentioned deficiency of the prior art, provide it is a kind of based on multimetering feedback out of my cabin Bracket processing technology realizes and inevitably builds up mistake in welding and assembling process to large-scale cabin outside support The amendment of difference, the installation accuracy requirement of the bracket met.

Above-mentioned purpose of the invention is achieved by following technical solution:

A kind of bracket processing technology out of my cabin based on multimetering feedback, includes the following steps:

Step 1: tested cabin is axially placed on the ground vertically;The outer wall in tested cabin is equipped with bracket to be processed;It will swash Optical tracker system is directed at bracket to be processed and is placed on tested ground out of my cabin;

Step 2: pasting 4 targets on the face to be processed of bracket to be processed;

Step 3: the coplane degree of 4 targets of laser tracker scanning survey, enters step four when coplane degree is met the requirements; When coplane degree is unsatisfactory for requiring, target position is finely tuned, until meeting the requirements;

Step 4: laser tracker is scanned measurement to tested cabin, face to be processed and 4 targets;Obtain face to be processed Spatial position relative to tested cabin;Areal coordinate system oxyz to be processed is established, obtains 4 targets relative to areal coordinate system to be processed The coordinate of oxyz;

Step 5: spatial position and known process after-poppet machined surface by face to be processed in step 4 relative to tested cabin Relative to the space criteria position versus in tested cabin, the processing capacity that machined surface is processed is treated in acquisition;

Step 6: bracket to be processed is removed from tested wall out of my cabin, with 4 targets relative to areal coordinate system oxyz to be processed Coordinate on the basis of, treat machined surface and processed, remove step 5 in determine processing capacity;

Step 7: the bracket after processing is reset on tested cabin side wall, using laser tracker to reset after-poppet with Normal place comparison carries out calibration detection;

Step 8: when testing result is met the requirements, process finishing;When testing result is unsatisfactory for requiring, step 4 is repeated extremely Step 7, until meeting the requirements.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step one, swash The distance of the tested wall out of my cabin of optical tracker system distance of shaft centers is L;The axial height in tested cabin is h;ThenH > 0;L > 0.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step two, institute The face to be processed for stating bracket to be processed is located at side of the bracket to be processed towards laser tracker.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step two, 4 The paste position of target are as follows: 4 targets are bonded in respectively at 4 arms of angle in face to be processed.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step three, altogether Face degree requirement are as follows: the coplane degree of 4 targets is less than or equal to 0.05mm.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step four, to The method for building up of machined surface coordinate system are as follows:

Using the lower left corner in face to be processed as coordinate origin o, x-axis is directed toward horizontal side, and y-axis is directed toward vertical side, and z-axis is by the right side Hand rule determines.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step four, 4 The coordinate measuring method of target are as follows:

Laser tracker calculates average value to measurement of coordinates 5-7 times of each target.

In a kind of above-mentioned bracket processing technology out of my cabin based on multimetering feedback, the step eight, institute State the requirement of testing result are as follows: reset after-poppet and normal place deviation is less than or equal to 0.1mm.

The invention has the following advantages over the prior art:

(1) present invention successfully solves bracket and the online Combined machining problem of large-scale cabin, using anti-based on multimetering The offline processing technology of feedback, ensure that the required precision of bracket out of my cabin;

(2) present invention carries out the offline Combined machining of multiple spot feedback, the processing of multiple brackets can be carried out simultaneously, to improve Whole cabin assembly efficiency reduces the production cycle;

(3) present invention is fed back using multimetering, can reduce offline Combined machining bring correct error, thus Reduce the subsequent accumulation of error, reduce total deviation, guarantees bracket assembly precision.

Detailed description of the invention

Fig. 1 is bracket flow process chart of the present invention;

Fig. 2 is the tested cabin of the present invention, bracket to be processed and laser tracker position view;

Fig. 3 is 4 target schematic view of the mounting position of the invention.

Specific embodiment

The present invention is described in further detail in the following with reference to the drawings and specific embodiments:

Spacecraft bay section is in large and complex structure of the processing comprising the assembly of a variety of brackets, to pacifying on spacecraft bay section outer wall The docking external equipment bracket of dress proposes linear dimension relevant to whole device coordinate system and morpheme size tolerance, due to whole Body structure inevitably builds up error in welding and assembling process, and equipment installation part is difficult disposably to reach after mounting To required precision;The present invention provide it is a kind of based on multimetering feedback bracket processing technology out of my cabin, use based on branch Frame multiple spot accurate measurement-removal bracket is simultaneously processed-feeds back the offline combination processing technology reassembled, realizes to be processed after welding The face to be processed 21 of bracket 2 is accurately processed and is resetted.

It is as shown in Figure 1 bracket flow process chart, as seen from the figure, a kind of processing of bracket out of my cabin based on multimetering feedback Process includes the following steps:

Step 1: it is illustrated in figure 2 tested cabin, bracket to be processed and laser tracker position view, it as seen from the figure, will Tested cabin 1 is axial to be placed on the ground vertically;The outer wall in tested cabin 1 is equipped with bracket 2 to be processed;Laser tracker 3 is aligned Bracket 2 to be processed is placed on the ground outside tested cabin 1;The distance that 3 distance of shaft centers of laser tracker is tested 1 outer wall of cabin is L;It is tested The axial height in cabin 1 is h;ThenH > 0;L > 0.

Step 2: 4 target schematic view of the mounting position are illustrated in figure 3, as seen from the figure, in the to be added of bracket 2 to be processed 4 targets 4 are pasted on work face 21;Wherein, the face to be processed of bracket 2 to be processed is located at bracket 2 to be processed towards laser tracker 3 Side.The paste position of 4 targets 4 are as follows: 4 targets 4 are bonded in respectively at 4 arms of angle in face 21 to be processed.For bracket Accurate measurement, the position selection of 4 targets 4 be located at it is bright and clean, without on machining deformation, the higher burnishing surface of dimension precision requirement, and one As directly select on face to be processed, with reduce discrete point conversion error.Target 4 should cover entire accurate measurement face as far as possible, The distance the remote between target 4 more can be reduced measurement error caused by measuring surface geometric tolerance.

Step 3: the coplane degree of 34 targets 4 of scanning survey of laser tracker, when measurement, using the method for multimetering; Coplane degree requirement are as follows: the coplane degree of 4 targets 4 is less than or equal to 0.05mm.Four are entered step when coplane degree is met the requirements;When coplanar Degree is unsatisfactory for requiring, and finely tunes 4 position of target, until meeting the requirements;

Step 4: laser tracker 3 is scanned measurement to tested cabin 1, face to be processed 21 and 4 target 4;It obtains to be added Spatial position of the work face 21 relative to tested cabin 1;Establish areal coordinate system oxyz to be processed, the method for building up of areal coordinate system to be processed Are as follows:

Using the lower left corner in face 21 to be processed as coordinate origin o, x-axis is directed toward horizontal side, and y-axis is directed toward vertical side, z-axis by The right-hand rule determines.Seat of 4 targets 4 relative to areal coordinate system oxyz to be processed is obtained by 3 scanning survey of laser tracker Mark;

The coordinate measuring method of 4 targets 4 are as follows:

Laser tracker 3 calculates average value to measurement of coordinates 5-7 times of each target 4.

Step 5: the spatial position by face 21 to be processed in step 4 relative to tested cabin 1 adds with known process after-poppet The processing capacity that machined surface 21 is processed is treated in space criteria position versus of the work face relative to tested cabin 1, acquisition;

Step 6: bracket 2 to be processed is removed from tested 1 outer wall of cabin, with 4 targets 4 relative to areal coordinate system to be processed It on the basis of the coordinate of oxyz, treats machined surface 21 and is processed, remove the processing capacity determined in step 5;

Step 7: the bracket after processing is reset on tested 1 side wall of cabin, using 3 pairs of reset after-poppets of laser tracker Calibration detection is carried out with normal place comparison;

Step 8: when testing result is met the requirements, process finishing;When testing result is unsatisfactory for requiring, step 4 is repeated extremely Step 7, until meeting the requirements;The requirement of testing result are as follows: reset after-poppet and normal place deviation is less than or equal to 0.1mm.

The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.

Claims (8)

1. a kind of bracket processing technology out of my cabin based on multimetering feedback, characterized by the following steps:
Step 1: tested cabin (1) is axially placed on the ground vertically;The outer wall of tested cabin (1) is equipped with bracket to be processed (2);Laser tracker (3) are directed at bracket (2) to be processed to be placed on the ground of tested cabin (1) outside;
Step 2: pasting 4 targets (4) on the face to be processed (21) of bracket to be processed (2);
Step 3: the coplane degree of 4 targets (4) of laser tracker (3) scanning survey, enters step when coplane degree is met the requirements Four;When coplane degree is unsatisfactory for requiring, target (4) position is finely tuned, until meeting the requirements;
Step 4: laser tracker (3) is scanned measurement to tested cabin (1), face to be processed (21) and 4 targets (4);It obtains Spatial position of the face (21) to be processed relative to tested cabin (1);Areal coordinate system oxyz to be processed is established, 4 target (4) phases are obtained For the coordinate of areal coordinate system oxyz to be processed;
Step 5: the spatial position by face (21) to be processed in step 4 relative to tested cabin (1) adds with known process after-poppet The processing capacity that machined surface (21) is processed is treated in space criteria position versus of the work face relative to tested cabin (1), acquisition;
Step 6: bracket to be processed (2) are removed from tested cabin (1) outer wall, with 4 targets (4) relative to areal coordinate to be processed Be oxyz coordinate on the basis of, treat machined surface (21) and processed, remove step 5 in determine processing capacity;
Step 7: the bracket after processing is reset on tested cabin (1) side wall, using laser tracker (3) to reset after-poppet Calibration detection is carried out with normal place comparison;
Step 8: when testing result is met the requirements, process finishing;When testing result is unsatisfactory for requiring, step 4 is repeated to step Seven, until meeting the requirements.
2. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 1, feature exist In: in the step one, the distance that laser tracker (3) distance of shaft centers is tested cabin (1) outer wall is L;The axial height of tested cabin (1) Degree is h;ThenH > 0;L > 0.
3. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 2, feature exist In: in the step two, the face to be processed of the bracket (2) to be processed is located at bracket to be processed (2) towards laser tracker (3) side.
4. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 3, feature exist In: in the step two, the paste position of 4 targets (4) are as follows: 4 targets (4) are bonded in the 4 of face to be processed (21) respectively At a arm of angle.
5. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 4, feature exist In: in the step three, coplane degree requirement are as follows: the coplane degree of 4 targets (4) is less than or equal to 0.05mm.
6. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 5, feature exist In: in the step four, the method for building up of areal coordinate system to be processed are as follows:
Using the lower left corner of face to be processed (21) as coordinate origin o, x-axis is directed toward horizontal side, and y-axis is directed toward vertical side, and z-axis is by the right side Hand rule determines.
7. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 6, feature exist In: in the step four, the coordinate measuring method of 4 targets (4) are as follows:
Laser tracker (3) calculates average value to measurement of coordinates 5-7 times of each target (4).
8. a kind of bracket processing technology out of my cabin based on multimetering feedback according to claim 7, feature exist In: in the step eight, the requirement of the testing result are as follows: reset after-poppet and normal place deviation is less than or equal to 0.1mm.
CN201910271689.4A 2019-04-04 2019-04-04 A kind of bracket processing technology out of my cabin based on multimetering feedback CN110006341A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10132935A (en) * 1996-11-01 1998-05-22 Nec Corp Missile position measuring equipment
US20070265728A1 (en) * 2006-05-10 2007-11-15 The Boeing Company Merged laser and photogrammetry measurement using precise camera placement
CN101097132A (en) * 2006-06-30 2008-01-02 廊坊智通机器人系统有限公司 Workpieces reference frame marking method based on relative measurement
CN102519441B (en) * 2011-12-06 2013-12-18 南京航空航天大学 Method for measuring positioning points based on laser tracker in docking process of airplane parts
CN203772186U (en) * 2014-04-14 2014-08-13 江西凯马百路佳客车有限公司 Outward swing cabin door calibration examination operating device
CN204358247U (en) * 2014-11-28 2015-05-27 北京卫星制造厂 A kind of astrovehicle pipe-line system is with debuging and testing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10132935A (en) * 1996-11-01 1998-05-22 Nec Corp Missile position measuring equipment
US20070265728A1 (en) * 2006-05-10 2007-11-15 The Boeing Company Merged laser and photogrammetry measurement using precise camera placement
CN101097132A (en) * 2006-06-30 2008-01-02 廊坊智通机器人系统有限公司 Workpieces reference frame marking method based on relative measurement
CN102519441B (en) * 2011-12-06 2013-12-18 南京航空航天大学 Method for measuring positioning points based on laser tracker in docking process of airplane parts
CN203772186U (en) * 2014-04-14 2014-08-13 江西凯马百路佳客车有限公司 Outward swing cabin door calibration examination operating device
CN204358247U (en) * 2014-11-28 2015-05-27 北京卫星制造厂 A kind of astrovehicle pipe-line system is with debuging and testing apparatus

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Title
张霞等: "大型航天器结构离线组合加工误差分析及控制", 《航天制造技术》 *

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