CN109015510A - The stringer installation method of sealed compartment time structure Instrumental mounting platform - Google Patents

The stringer installation method of sealed compartment time structure Instrumental mounting platform Download PDF

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Publication number
CN109015510A
CN109015510A CN201810832742.9A CN201810832742A CN109015510A CN 109015510 A CN109015510 A CN 109015510A CN 201810832742 A CN201810832742 A CN 201810832742A CN 109015510 A CN109015510 A CN 109015510A
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China
Prior art keywords
stringer
template
layer
instrument
truss
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CN201810832742.9A
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CN109015510B (en
Inventor
刘菁
江大为
马力源
徐志东
李志明
黄垒
边玉川
王欢
张志龙
李桐
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Beijing Institute of Spacecraft Environment Engineering
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Beijing Institute of Spacecraft Environment Engineering
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a kind of stringer installation methods of sealed compartment time structure Instrumental mounting platform, this method successively installs first, second and third layer of stringer of the instrument mounting platform in sealed compartment in the case where not tightening fixing piece, and the instrument template of each layer is installed, using the direct analog machine installation condition of detection template, truss is directly adjusted in place, it adjusts stringer simultaneously to tighten in place, and successively removes first, second and third layer instrument template, first, second and third layer of stringer instrument of corresponding installation.The direct analog machine installation condition of method application detection template of the invention, truss is directly adjusted in place, ensure that measurement result is correct, effective, truss is avoided to adjust repeatedly, risk caused by equipment repeated disassembled and assembled, it is ensured that while installation accuracy, easy to disassemble, carrying, it realizes that control of product quality is preposition, ensure that going on smoothly for truss installa-tion work.

Description

The stringer installation method of sealed compartment time structure Instrumental mounting platform
Technical field
The invention belongs to truss-like time structure installation dimension field of measuring technique, in particular it relates to a kind of close The installation dimension measurement method of batten down time structure.
Background technique
Instrument mounting platform in usually used sealed compartment is truss structure, and mounting platform is divided into three layers, every layer by Several stringers are formed by overlapping with crossbeam assembly.Hereinafter referred to as one layer of truss, two layers of truss and three layers of truss.Required installation is set Standby quantity is more, density is big, the assembled pitch-row error generated later of several stringers, can directly result in equipment and installation hole location generates partially Difference causes equipment not to be installed in place accurately.
Currently, truss installa-tion dimensional measurement is adjusted centering, and one, two, three layer of truss when mainly equipment being relied on to install Erection sequence is irreversible, needs from bottom to top first to install first layer stringer, the equipment for installing one layer of truss, adjustment stringer installs shape State removes and reassembles equipment, then successively install second after tightening stringer fastener and dynamometry with the equipment of stringer fastener interference Layer, third layer stringer and equipment.It can be followed when due to installation stringer without benchmark, lead to that repeated disassembled and assembled equipment is needed to be adjusted.Specifically Operating procedure such as Fig. 1, the operating process is many and diverse and efficiency is lower, is not able to satisfy the measurement needs of a large amount of sealed compartments time structure.Mesh Before, adoptable measurement method includes device authentication method and pitch-row mensuration, wherein device authentication method is installed in every layer of stringer Afterwards, in the case that fastener is not tightened, all devices on stringer are installed, with the practical hole location of equipment to stringer installation site Carry out inspection calibration.This method mainly includes following problems:
(1) equipment on every layer of crossbeam not can guarantee while deliver in place, can be completed because of large number of equipment and install and tighten Dynamometry, there are deviations for the equipment installation hole location of follow-up delivery installation, and adjustment stringer is related to largely doing over again again;
(2) since stringer just fills hole location deviation when equipment is installed, cause equipment that can not install, stringer position need to be adjusted repeatedly It sets;
(3) it is limited by space, after the calibration of stringer hole location, it may appear that need to remove equipment could tighten stringer fastener The phenomenon that dynamometry;
(4) sealed compartment narrow space, anti-multiplexing equipment cooperation gauge hole is away from bringing operational risk.
Another pitch-row mensuration is surveyed one by one with slide calliper rule to instrument mounting hole spacing on stringer after dress at the beginning of stringer The method of amount.Mainly there are following problems using the general measure method:
(1) three layer of truss instrument installation dimension is more, measures intricate operation;
(2) it is limited by space, many places mounting hole spacing can not measure;
(3) stringer hole location deviation when just filling, need to adjust stringer repeatedly, at adjustment one, between measure qualified size and also can It changes correspondingly;
(4) peripheral equipment mounting hole spacing is needed while measuring, the stringer of active state carrys out difficulty to measurement work belt.
For this purpose, lack the installation dimension measurement method of efficient and accurate measurement sealed compartment time structure in the prior art, with gram Take that conventional method is cumbersome, the big drawback of risk.
Summary of the invention
The measurement of the installation dimension of measurement sealed compartment time structure not applicable efficiently for above-mentioned existing measurement method, accurate needs It asks, the invention proposes a kind of measurement method, that is, analogy aerotriangulations for simulating truss equipment installation dimension, and this method can be by stringer Using equipment opening away from as reference for installation, discovery has installation hole location deviation excessive in simulation process, can not screw in screw, Bian Kezhi The spacing for adjusting corresponding stringer in right amount is connect, until equipment installation hole location and stringer hole location are to just, it is ensured that stringer is once adjusted to Position.
The stringer installation method of sealed compartment time structure Instrumental mounting platform of the invention, comprising the following steps:
The first layer stringer of instrument mounting platform in sealed compartment is installed in the case where not tightening fixing piece, and installs the Truss is directly adjusted in place, while adjusting stringer by one layer of instrument template using the direct analog machine installation condition of detection template It tightens in place;
First layer instrument template is removed, first layer stringer instrument is installed;
Second layer stringer is installed in the case where not tightening fixing piece and second layer instrument template is installed, using detection template Direct analog machine installation condition, truss is directly adjusted in place, while adjusting stringer and tightening in place;
Second layer instrument template is removed, second layer stringer instrument is installed;
Third layer stringer is installed in the case where not tightening fixing piece and third layer instrument template is installed, using detection template Direct analog machine installation condition, truss is directly adjusted in place, while adjusting stringer and tightening in place;
Third layer instrument template is removed, third layer stringer instrument is installed.
Wherein, it is described it is direct simulation be by by equipment opening away from the basis of, the practical footprint shape of analog machine, with detection mould Plate analog machine installation process on every layer of truss, and analog equipment is all installed in place state.
Wherein, detection template is made of antirust aluminum material.
Wherein, detection template with a thickness of 2mm, stencil plane degree is 0.5mm.
Wherein, the template quadrangle of detection template carries out round corner treatment, and radius of corner R is 5mm or so, and four sides carry out unhairing Thorn processing.
Wherein, device identification should be arranged at the center of each detection template to distinguish, while there is the hole equipment R mark in template Know, and be consistent with the hole corresponding equipment R home position, it is ensured that analog machine installation site and direction.
The application of measurement method of the invention solves measurement error caused by measurement result indirectly, using detection template Analogy aerotriangulation can direct analog machine installation condition, truss is directly adjusted in place, it is ensured that measurement result is correct, effectively, keeps away Exempt from truss to adjust repeatedly, risk caused by equipment repeated disassembled and assembled, it is ensured that while installation accuracy, easy to disassemble, carrying is realized and produced Quality control is preposition, ensure that going on smoothly for truss installa-tion work.
Detailed description of the invention
Fig. 1 be in the prior art the stringer installation method of sealed compartment time structure Instrumental mounting platform the step of figure;
The step of Fig. 2 is stringer installation process in sealed compartment of the invention of the invention time structure installation dimension measurement method Figure;
Fig. 3 is that the template of stringer installation process in sealed compartment of the invention time structure installation dimension measurement method uses part Schematic diagram.In Fig. 3,1- stringer, 2- detection template.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments, it should be noted that these are only It is exemplary, it is no intended to which any restrictions are carried out to the scope of the present invention.
Referring to fig. 2, Fig. 2 shows stringer installation steps in sealed compartment of the invention time structure installation dimension measurement method Figure;Wherein, sealed compartment of the invention time structure installation dimension measurement method is not the following steps are included: tightening screw mounts In the case of the first layer stringer of instrument mounting platform in sealed compartment is installed, and the instrument mould of first layer antirust aluminum material is installed Truss is directly adjusted in place, together with a thickness of 2mm using the direct analog machine installation condition of detection template by plate, instrument template When adjustment stringer tighten in place;Due to template analog machine shape, be coupled with stringer, for meet simulation true hole away from Effect, stencil plane degree are 0.5mm.
First layer instrument template is removed, first layer stringer instrument is installed;
Second layer stringer is installed in the case where not tightening screw mounts and the instrument of second layer antirust aluminum material is installed Truss is directly adjusted in place with a thickness of 2mm using the direct analog machine installation condition of detection template by template, instrument template, Stringer is adjusted simultaneously to tighten in place;It due to template analog machine shape, is coupled with stringer, simulates true hole to meet Away from effect, stencil plane degree is that truss is directly adjusted in place by 0.5mm using the direct analog machine installation condition of detection template, Stringer is adjusted simultaneously to tighten in place;
Second layer instrument template is removed, second layer stringer instrument is installed;
Third layer stringer is installed in the case where not tightening screw mounts and the instrument of third layer antirust aluminum material is installed Truss is directly adjusted in place with a thickness of 2mm using the direct analog machine installation condition of detection template by template, instrument template, Stringer is adjusted simultaneously to tighten in place;It due to template analog machine shape, is coupled with stringer, simulates true hole to meet Away from effect, stencil plane degree is that truss is directly adjusted in place by 0.5mm using the direct analog machine installation condition of detection template, Stringer is adjusted simultaneously to tighten in place;
Third layer instrument template is removed, third layer stringer instrument is installed.
In a specific embodiment of the invention, since sealed compartment first layer truss, after this layer of stringer all installation, Stringer fastener is not tightened, and each detection template is placed on stringer according to corresponding equipment actual installation position, checks detection mould Device identification code name and the hole R on plate identify direction, it is ensured that correct, effective analog machine installation condition, installation detects mould one by one Plate fastener, if encountering the case where screw can not screw in, micro adjustment stringer fastener, until this screw can smoothly screw in spiral shell Line.After each detection template is installed in place, the as final installation dimension of truss screws all fasteners of stringer, first layer truss peace Dress dimensional measurement work terminates, and installation condition is end-state to truss at this time, removes this layer of all detection template, can be according to normal Process installs this layer of equipment.According to the analog measurement method, carry out the sealed compartment second layer respectively, third layer truss installa-tion size is surveyed Measure work.
It is that the template of stringer installation process in sealed compartment of the invention time structure installation dimension measurement method makes referring to Fig. 3 Use partial schematic diagram.As shown in the figure by taking one layer of stringer and template are locally coupled as an example, 1 is stringer, and 2 be detection template, Middle detection panel aperture is consistent with corresponding equipment aperture, after the installation of each stringer, by corresponding detection template 2 according to the practical peace of equipment Holding position is placed sequentially on stringer 1, and ensures that 2 placement direction of detection template is correct, so as to effective analog machine installation condition, After being directed at the two mounting hole, detection plate fastener is successively tightened, if encountering the case where screw can not screw in, micro adjustment stringer 1, until this screw can smoothly screw in screw thread, after each detection template 2 is installed in place and each 1 mated condition of stringer is as shown in figure 3, figure Shown in mated condition be the final installation condition of truss at this, i.e., stringer dimensional measurement at this, which works, to be completed.
By adequately analyzing factors such as detection template material, sizes, the actual conditions of bonding apparatus installation, Yi Jimo Plate itself such as specifically installs and uses, stores at the conditions, considers following aspects to the selection of detection template material:
(1) this template is a kind of measurer, in use without undertaking very big intensity;
(2) this template is analog meter outer dimension, and material should be unlikely to deform;
(3) this template should be light and handy as far as possible in carrying and installation process;
(4) this mould material surface should be not easy to corrode, and avoid the installation accuracy for influencing tooling, damage stringer mounting surface.
In summary the considerations of several aspects, and the understanding to detection template surfacing, tooling material is chosen to be anti- Become rusty aluminum material, advantage are as follows: rustproof aluminum alloy material weight is easily portable installation compared with the light many of steel.After its surface carries out antirust It can satisfy naked hand contact surface, or place to weather for a long time and get rusty.Aluminium is cheap, can reduce tooling manufacture at This, is avoided cost from wasting.
Further, since detection template most critical size is to simulate mounting hole aperture and the mounting hole pitch-row of real equipment, Three layers of truss equipment size feature are analyzed, obtain the largest contours of detection template shape analog machine footprint, installation dimension Consistent with equipment installation dimension, reference for installation hole is consistent with equipment datum hole direction.In view of aluminium deflection and weight are dual Factor, template thickness 2mm.By the preliminary sizing to detection template material, size, the process of itself also should be abundant Consider.
(1) it since template selected material is rustproof aluminum alloy, is using, in handling process, is being easy that truss time structure is caused to damage Therefore template quadrangle is carried out round corner treatment by wound, so that operational risk is reduced, radius of corner R:5mm, and while four sides carry out Deburring processing;
(2) due to this template analog machine installation condition, device identification should be added in each template center and is distinguished, simultaneously Should have the hole equipment R mark in template, and be consistent with the hole corresponding equipment R home position, it is ensured that can accurate simulation set Standby installation site and direction;
(3) to be easy to operate, convenient for observation, template identification and the hole R mark should add positive (non-mounting surface) in template;
(4) it to guarantee that mark is high-visible, prevents mark from falling off and causes to load in mixture phenomenon, template identification and the hole R mark are selected Laser processing, and paint color.
Application simulation mensuration of the present invention measures sealed compartment time structure truss installation dimension, can directly simulate and set Stringer installation dimension, is directly once adjusted in place by standby actual installation state, is not necessarily to repeated disassembled and assembled equipment, avoids measuring band indirectly The error come.Due to detection template small volume, installation, convenient in carrying reduce operational risk and difficulty, improve time structure The accuracy and measurement efficiency of truss installa-tion dimensional measurement, simplify origin operation process, and original method truss is adjusted and all installed Time-consuming is at least needed in place 2 days to 3 days, only needed about 3 hours using the adjustment installation that detection template completes truss, substantially increase survey Measure working efficiency.
Although the detailed description and description of the specific embodiments of the present invention are given above, it should be noted that We can carry out various equivalent changes and modification to above embodiment according to the concept of the present invention, and generated function is made It, should all be within protection scope of the present invention when with the spirit still covered without departing from specification and attached drawing.

Claims (6)

1. the stringer installation method of sealed compartment time structure Instrumental mounting platform, comprising the following steps:
The first layer stringer of instrument mounting platform in sealed compartment is installed in the case where not tightening fixing piece, and first layer is installed Truss is directly adjusted in place, while adjusting stringer and tightening by instrument template using the direct analog machine installation condition of detection template In place;
First layer instrument template is removed, first layer stringer instrument is installed;
Second layer stringer is installed in the case where not tightening fixing piece and second layer instrument template is installed, it is direct using detection template Truss is directly adjusted in place, while adjusting stringer and tightening in place by analog machine installation condition;
Second layer instrument template is removed, second layer stringer instrument is installed;
Third layer stringer is installed in the case where not tightening fixing piece and third layer instrument template is installed, it is direct using detection template Truss is directly adjusted in place, while adjusting stringer and tightening in place by analog machine installation condition;
Third layer instrument template is removed, third layer stringer instrument is installed.
2. the method for claim 1, wherein it is described it is direct simulation be by by equipment opening away from the basis of, analog machine Practical footprint shape, with detection template on every layer of truss analog machine installation process, and analog machine is all installed in place shape State.
3. the method for claim 1, wherein detection template is made of antirust aluminum material.
4. the method according to claim 1, wherein detection template with a thickness of 2mm, stencil plane degree is 0.5mm。
5. the method according to claim 1, wherein the template quadrangle of detection template carries out round corner treatment, circle Angular radius R is 5mm or so, and four sides carry out deburring processing.
6. the method according to claim 1, wherein device identification should be arranged at the center of each detection template and carry out It distinguishes, while there is the hole equipment R mark, and be consistent in template with the hole corresponding equipment R home position, it is ensured that analog machine Installation site and direction.
CN201810832742.9A 2018-07-26 2018-07-26 Stringer installation method of instrument installation platform in sealed cabin secondary structure Active CN109015510B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113386079A (en) * 2020-03-11 2021-09-14 中国航发商用航空发动机有限责任公司 Mounting method, tool and fastening kit for special-shaped lock ring

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103985B1 (en) * 2004-12-17 2006-09-12 Roll Forming Corporation Stringer check fixture and method
CN101381003A (en) * 2008-09-19 2009-03-11 航天东方红卫星有限公司 Main load-carrying structure of spacecraft
KR20100002565A (en) * 2008-06-30 2010-01-07 김은하 Method for construction of extension culvert in state guarantying footway and driveway
CN102359271A (en) * 2011-07-22 2012-02-22 杨元东 Composite stringer
CN103537513A (en) * 2013-11-07 2014-01-29 北京星航机电装备有限公司 Stress relaxation correcting method for stringer structure cylindrical piece
CN103963997A (en) * 2014-05-06 2014-08-06 上海卫星工程研究所 Small satellite polygonal force bearing barrel
CN105659745B (en) * 2012-08-03 2014-08-13 北京空间飞行器总体设计部 The lightweight equipment mounting structure of a kind of space capsule inside
CN104878700A (en) * 2015-06-23 2015-09-02 广东省水利水电第三工程局有限公司 Truss and formwork
CN106679512A (en) * 2016-12-28 2017-05-17 中国运载火箭技术研究院 Installing structure of support allowing instruments in cabin to be replaced
CN206926839U (en) * 2017-03-31 2018-01-26 北京蓝箭空间科技有限公司 A kind of instrument cabin structure of vehicle

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103985B1 (en) * 2004-12-17 2006-09-12 Roll Forming Corporation Stringer check fixture and method
KR20100002565A (en) * 2008-06-30 2010-01-07 김은하 Method for construction of extension culvert in state guarantying footway and driveway
CN101381003A (en) * 2008-09-19 2009-03-11 航天东方红卫星有限公司 Main load-carrying structure of spacecraft
CN102359271A (en) * 2011-07-22 2012-02-22 杨元东 Composite stringer
CN105659745B (en) * 2012-08-03 2014-08-13 北京空间飞行器总体设计部 The lightweight equipment mounting structure of a kind of space capsule inside
CN103537513A (en) * 2013-11-07 2014-01-29 北京星航机电装备有限公司 Stress relaxation correcting method for stringer structure cylindrical piece
CN103963997A (en) * 2014-05-06 2014-08-06 上海卫星工程研究所 Small satellite polygonal force bearing barrel
CN104878700A (en) * 2015-06-23 2015-09-02 广东省水利水电第三工程局有限公司 Truss and formwork
CN106679512A (en) * 2016-12-28 2017-05-17 中国运载火箭技术研究院 Installing structure of support allowing instruments in cabin to be replaced
CN206926839U (en) * 2017-03-31 2018-01-26 北京蓝箭空间科技有限公司 A kind of instrument cabin structure of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113386079A (en) * 2020-03-11 2021-09-14 中国航发商用航空发动机有限责任公司 Mounting method, tool and fastening kit for special-shaped lock ring
CN113386079B (en) * 2020-03-11 2022-11-25 中国航发商用航空发动机有限责任公司 Mounting method, tool and fastening kit for special-shaped lock ring

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