CN102556367B - Method for assembling structures of light product platforms - Google Patents
Method for assembling structures of light product platforms Download PDFInfo
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- CN102556367B CN102556367B CN201110362455.4A CN201110362455A CN102556367B CN 102556367 B CN102556367 B CN 102556367B CN 201110362455 A CN201110362455 A CN 201110362455A CN 102556367 B CN102556367 B CN 102556367B
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Abstract
The invention discloses a method for assembling structures of light product platforms, which includes: determining a main datum and an auxiliary datum of a light product platform; processing at least two side plates which are hollowed out into craft side plates, setting positioning pins on the side plates and the craft side plates; leveling a high-precision turntable, fixing a craft matcher on the high-precision turntable, adjusting levelness and coaxiality to serve as the main datum of products, fixing a bottom plate on a craft matcher, locating by means of a datum scale line and the positioning pins, then assembling components of the light production platform from bottom to top by aligning to the datum scale line and correcting accurately during assembling.
Description
Technical field
Product invention relates to a kind of Standard method of certain product platform, and method for product relies on a set of production tooling, is applied to lightness product platform, more specifically, relates to the frock of product platform Standard method, accuracy guarantee method and application thereof.
Background technology
In traditional, large product structure is comprised of center loaded cylinder, laminate, dividing plate, crossbeam, strut, side plate, has higher rigidity and structure precision hold facility; Various actions in product development process is also less on the impact of structure precision, can meet product development requirement.
But in production, process of scientific research, some product has very strict requirement to weight control, need to adopt light structure.Fig. 1 is in an example, a certain STRUCTURE DECOMPOSITION figure that is applied to the typical lightness product platform of satellite, and this product platform comprises the parts such as top board, base plate, central cross dividing plate, la m, side plate, each part adopts light-weight design equally.This rigidity of structure is lower, and precision hold facility is poor, particularly in development process, needs to remove under the state of side plate.
From design angle, in the situation that side plate is arranged on product body, the rigidity of structure of the said goods platform is enough to meet the precision of product.But in development process, because needs carry out operating in a large amount of products, also need on horizontal boring machine, combine processing, these operations all need to remove side plate, two blocks of side plates are even sometimes installed on product body simultaneously and all cannot be guaranteed.When side plate can not be arranged on product body, the rigidity of structure will significantly decline, and the precision of whole product also cannot be guaranteed.For example, product is when housing assembles, and on the top board that side plate dismounting once causes, the sun wing is installed hinge place precision and is changed to 0.3mm, has exceeded manufacture claim, and this can not allow.In addition, product structure is mainly comprised of aluminium honeycomb sandwich construction part, and the planeness precision of aluminium honeycomb sandwich construction part is not high, and the rigidity of single aluminium honeycomb sandwich construction part is general not high yet.This class formation, when light-duty design, easily produces distortion, and is out of shape irregular in fitting process.After this just causes light-duty certain product platform Standard, the accuracy of form and position guarantees difficulty, repeats assembly precision and guarantees difficulty.
Summary of the invention
The object of the invention is to overcome lightweight product structure platform because it is lightweight, rigidity is low, yielding feature makes its precision hold facility, repeat the defect that assembly precision guarantees that ability cannot meet design requirement, thereby provide a set of, the rigidity of structure in product development process and the precision hold facility of structure be can improve, the technique assembling and the method that repeat assembly precision improved.
To achieve these goals, the invention provides a kind of Standard method of lightweight product platform, described lightweight product platform comprises top board, base plate, lower clapboard, upper spacer, la m, side plate; On described base plate, lower clapboard is installed, most la ms are installed on described lower clapboard, described upper spacer is installed on described la m, described top board is installed on described upper spacer again; Described side plate is vertically mounted between described top board and base plate, and is positioned at the outside of described lower clapboard, la m, upper spacer; The method comprises:
Step 1), determine primary standard and the auxiliary base of described lightweight product platform; Described primary standard is four round boss on described base plate reverse side four limits, and described auxiliary base is that described base plate is in two planes of II quadrant both sides;
Step 2), be processed into technique side plate by least two in described side plate, and set up locating dowel pin on described side plate and described technique side plate; Wherein, the side plate that described technique side plate is hollow type;
Step 3), by high precision turntable level-off, process adapter is fixed in described high precision turntable, mix up the primary standard that levelness and right alignment are usingd as product, then described base plate is fixed on described process adapter, utilize benchmark groove and locating dowel pin capturing position, then alignment fiducials groove assembles each zero parts of described lightweight product platform successively from below to up, and in fitting process, carries out precision correction.
In technique scheme, on the side plate described in each or technique side plate, at least set up 5 locating dowel pins, wherein 2 corresponding base plates of locating dowel pin, wherein 1 corresponding la m of locating dowel pin, wherein 2 corresponding top boards of locating dowel pin.
In technique scheme, in described step 3) in, described process adapter comprises upper and lower two annulus, between two annulus, by cylinder, connects; On described upper and lower annulus, respectively have 4 knock holees, described 4 knock holees become 90 degree symmetric offset spread on annulus, and wherein the circle center line connecting of 2 relative knock holees is by the center of circle of described annulus.
In technique scheme, in described step 3) in, in the process of each zero parts of assembling from below to up described lightweight product platform, the parallelism between described top board, la m, base plate is at least 0.5mm, and position degree is at least 0.5mm.
In technique scheme, in described step 3) in, in fitting process, carry out precision correction and be included in after installation lower clapboard, the lower clapboard top after installing is revised, to guarantee that integral planar degree and the parallelism of described la m is at least 0.2mm.
In technique scheme, also be included in described top board and side sheet room the step of heat insulating mattress is installed, this step comprises: first described heat insulating mattress is sticked on side plate, then carry out trial assembly, according to the natural laminating situation of described heat insulating mattress and described top board, heat insulating mattress is revised, both can well be fitted under state of nature, then with torque spanner, tighten the vertical attaching screw of described top board and described side plate, what make described top board is forced to Deformation control in 0.05mm, and repeatable accuracy is at 0.02mm.
The invention has the advantages that:
The present invention can guarantee the precision of lightweight product structure platform when assembling.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, product invention is described further, wherein:
Accompanying drawing 1 is a certain STRUCTURE DECOMPOSITION figure that is applied to the typical lightness product platform of satellite in an example;
The diagram of circuit that accompanying drawing 2 is assembly method of the present invention;
Accompanying drawing 3 is related process adapter schematic diagram in the present invention;
Accompanying drawing 4 is related technique side plate schematic diagram in the present invention.
The specific embodiment
In the following embodiments, a certain lightness product platform that is applied to satellite of being mentioned take in Fig. 1 is example, and its assembly method is described.
With reference to figure 2, this assembly method comprises:
Primary standard and the auxiliary base of step 1, establishment product platform.
Before product platform is processed, assembled, first need to establish primary standard and the auxiliary base of product platform.Traditional primary standard large-scale, medium-sized product of mentioning in background technology is the annular arrangement joint face of base plate and overskirt, and the top of this primary standard is center loaded cylinder, and below is overskirt, transition phase, uses band to carry out the separation of product arrow.And the product arrow separate mode that the product platform shown in Fig. 1 adopts is not used band, as directly adopting the form of four explosive bolts, product carries out the separation of product arrow, therefore its structure primary standard is four circular small boss on base plate reverse side four limits, for Discrete Plane, completely different from traditional product form, primary standard location, connection difficulty when this makes Standard.
The primary standard base plate of product and the joint face of adapter are comprised of four boss, in order to make this discrete primary standard be convenient to use in product development process, need to adopt the process adapter that has accuracy requirement shown in Fig. 3.This process adapter comprises upper and lower two annulus, between two annulus, by cylinder, connects.On described upper and lower annulus, respectively have 4 knock holees, described 4 knock holees become 90 degree symmetric offset spread on annulus, and wherein the circle center line connecting of 2 relative knock holees is by the center of circle of described annulus.Using this process adapter as the basis of Product Assembly, as long as the Level-adjusting of adapter is put in place, the benchmark of product is also just guaranteed.By benchmark cross groove and locating dowel pin, guarantee again the conformability of benchmark and precision in development process.To the use of this process adapter, will there is corresponding description hereinafter.
After primary standard is established, before product mix processing, according to master coordinate system and benchmark groove, in the II of base plate quadrant both sides, process two facets, just obtained the auxiliary base of product platform.
Step 2, be processed into technique side plate by least two in described side plate, and set up locating dowel pin on described side plate and described technique side plate.
Obtain the lightweight product platform of the present embodiment, need to do assembling and combination processing to its each parts.Described combination processing is last one measure that guarantees product structure precision, in combination, first need in the course of processing to solve be the precision of dismounting side plate reset and development process in the problem of precision maintenance, if this problem cannot be resolved, structure precision has not just been known where to begin yet so, can say this be most important in the assembling of certain product shell be also the problem of tool particularity.Therefore in assembling and combination first being processed, need to adopt the method that locating dowel pin and technique side plate are installed to guarantee reseting precision.
Lightness product platform rigidity under the state that side plate is not installed related in the present embodiment is very poor, the weight of a unit is just enough to laminate is deformed, and the connecting bore position of side plate and laminate is many, each dismounting side plate can not be in same position, laminate also can not be at same state, and these variations are enough to destroy the precision of the precision of precision unit attachment face on la m and I, III quadrant sun wing attachment face.Consider from side plate attachment face, three blocks of laminates are flexible, and side plate is rigidity, therefore can utilize the rigidity of side plate to locate three blocks of laminates, utilize side plate and locating dowel pin to solve the structure precision reset issues of dismounting side plate.The key element that determines product structure precision mainly contains the sun wing hinge position of I, III quadrant top board, the sun wing of base plate compresses backing positions, the precision unit attachment face position of la m and rail control unit installation site.According to above-mentioned analysis result the present embodiment, at I, III quadrant side plate, set up respectively 5 locating dowel pins, base plate is 2,1 of la m, 2, top board.2 locating dowel pins on base plate compress the position of support for guaranteeing 2 sun wings, and 1 locating dowel pin on la m is for guaranteeing the relative position of base plate and la m, and 2 locating dowel pins on top board are for guaranteeing the position of 2 hinges and the relative position of three blocks of laminates.By side plate and laminate, join and beat locating dowel pin, utilize the rigidity of side plate to solve the problem of laminate poor rigidity, utilize side plate and locating dowel pin to guarantee that the precision of laminate resets, such method, both strong solution product body structure poor rigidity easily lose the problem of precision, effectively raise again the precision of sun wing hinge installation site.Can reach in this way reseting precision in 0.03mm left and right.
Owing to can not guarantee to be arranged on product at product development process latus inframedium always, need to product body inside be combined in processing and a large amount of product and be operated, in order to solve in development process and to combine the precision maintenance problem that adds man-hour, taked to utilize the method for technique side plate.Technique side plate is the side plate of hollow type, as shown in Figure 4, by hollow out, guarantees operating position, does not reduce again and being connected of laminate, dividing plate simultaneously, guarantees the precision of structure.So just can guarantee that product has all the time two blocks of side plates or technique side plate to be arranged on product body in development process, strong assurance precision and the precision stability of product structure.In order to make technique side plate can have the fixed effect suitable with formal side plate, also adopt the mode identical with formal side plate to join and beaten locating dowel pin.Can say that technique side plate has played very important effect in the whole development process of product, be one of important base of the assembling of product platform housing related in the present embodiment and precision correction technique.
Step 3, product platform is assembled, and carry out precision correction in fitting process.
The precision of the precision of zero parts, housing assembling will be the strong guarantee that subsequent combination processing realizes product structure precision smoothly.In housing assembling, the precision target of base product is parallelism (0.5mm) and the position degree (0.5mm) of three blocks of laminates (being top board, la m, base plate), need to use high precision turntable and three coordinate measuring machine for this reason.First by high precision turntable level-off, process adapter is fixed on turntable, mixes up levelness and right alignment, as the primary standard of product, base plate is fixed on process adapter, utilizes benchmark groove and locating dowel pin capturing position.Then each zero parts of assembled product from below to up successively, and alignment fiducials groove.
When the zero parts of assembled product platform, need to guarantee the parallelism of three blocks of laminates.Loaded cylinder structure centered by traditional large and medium-sized product described in background technology, laminate is supported by loaded cylinder, so as long as loaded cylinder is adding the parallelism requirement that reaches design man-hour, during assembling, the parallelism of laminate has also just had assurance.But the lightness product platform that will assemble in the present embodiment is cross diaphragm structure, cross dividing plate is comprised of three parts, as the cross dividing plate that is denoted as lower clapboard in Fig. 1 is assembled by three dividing plates, due to after assembling, the height of each dividing plate is difficult to accomplish in full accord, and the top of each dividing plate neither be very flat, this just causes three dividing plates to be assembled together can not have good parallelism and planeness afterwards.In order to address this problem, need to, in the process of assembling, the planeness of la m attachment face and parallelism be revised.Assemble three lower clapboards on base plate after, just formed la m attachment face, existence due to part's machining errors and assembly error, it is not ideal making planeness and the parallelism of this la m attachment face, at this moment just need to this face, carry out local correcting process with parallel degrees of data according to the actual planeness recording, made good integral planar degree and parallelism (0.2mm), thus guarantee la m be in place after parallelism can reach designing requirement.Before being installed, top board also need the mounting of roof plate face to being formed by three upper spacers to carry out same correcting process equally.
There is such a case in lightness product platform related in the present embodiment: the sun wing of satellite need to be arranged on top board in application.Therefore, top board extends and forms all-wing aircraft structure to II, IV quadrant, makes II, IV side plate be connected to vertical connection with the screw of top board, this and conventional level connection joint be very different (I, III side plate and top board be connected to level connection joint).Owing to being vertical connection, and centre also needs sticking glass steel heat insulating mattress, and this makes joint face have gap, can not well fit.Tighten in this case screw, make by force joint face laminating, will cause the distortion that is forced to of top board, destroyed planeness and the parallelism of top board, and exactly the sun wing hinge face on top board there is higher accuracy of form and position requirement.This because the serious problem that has influence on housing assembly precision of the vertical connection mode of screw is also the specific question occurring on this type of product platform.In order to solve this contradiction, just must try every possible means to make the distortion that is forced to of top board to drop to minimum.Taked following measure: first heat insulating mattress is sticked on side plate for this reason, on product body, carry out trial assembly, according to the natural laminating situation of heat insulating mattress and top board, heat insulating mattress is revised, both can well be fitted under state of nature, then with torque spanner, tighten the vertical attaching screw of top board and side plate, thereby guarantee that top board base product is without being forced to distortion.What make in this way top board is forced to Deformation control in 0.05mm, and repeatable accuracy is at 0.02mm.
Claims (6)
1. a Standard method for satellite platform, described satellite platform comprises top board, base plate, lower clapboard, upper spacer, la m, side plate; On described base plate, lower clapboard is installed, most la ms are installed on described lower clapboard, described upper spacer is installed on described la m, described top board is installed on described upper spacer again; Described side plate is vertically mounted between described top board and base plate, and is positioned at the outside of described lower clapboard, la m, upper spacer; The method comprises:
Step 1), determine primary standard and the auxiliary base of described satellite platform; Described primary standard is four round boss on described base plate reverse side four limits, and described auxiliary base is that described base plate is in two planes of II quadrant both sides;
Step 2), be processed into technique side plate by least two in described side plate, and set up locating dowel pin on described side plate and described technique side plate; Wherein, the side plate that described technique side plate is hollow type;
Step 3), by high precision turntable level-off, process adapter is fixed in described high precision turntable, mix up the primary standard that levelness and right alignment are usingd as product, then described base plate is fixed on described process adapter, utilize benchmark groove and locating dowel pin capturing position, then alignment fiducials groove assembles each zero parts of described satellite platform successively from below to up, and in fitting process, carries out precision correction.
2. the Standard method of satellite platform according to claim 1, it is characterized in that, on the side plate described in each or technique side plate, at least set up 5 locating dowel pins, wherein 2 corresponding base plates of locating dowel pin, the wherein corresponding la m of 1 locating dowel pin, wherein 2 corresponding top boards of locating dowel pin.
3. the Standard method of satellite platform according to claim 1, is characterized in that, in described step 3) in, described process adapter comprises upper and lower two annulus, between two annulus, by cylinder, connects; On described upper and lower annulus, respectively have 4 knock holees, described 4 knock holees become 90 degree symmetric offset spread on annulus, and wherein the circle center line connecting of 2 relative knock holees is by the center of circle of described annulus.
4. the Standard method of satellite platform according to claim 1, it is characterized in that, in described step 3) in, in the process of each zero parts of assembling from below to up described satellite platform, parallelism between described top board, la m, base plate is at least 0.5mm, and position degree is at least 0.5mm.
5. the Standard method of satellite platform according to claim 1, it is characterized in that, in described step 3) in, in fitting process, carrying out precision correction is included in after installation lower clapboard, lower clapboard top after installing is revised, to guarantee that integral planar degree and the parallelism of described la m is at least 0.2mm.
6. the Standard method of satellite platform according to claim 1, it is characterized in that, also be included in described top board and side sheet room the step of heat insulating mattress is installed, this step comprises: first described heat insulating mattress is sticked on side plate, then carry out trial assembly, according to the natural laminating situation of described heat insulating mattress and described top board, heat insulating mattress is revised, both can well be fitted under state of nature, then with torque spanner, tighten the vertical attaching screw of described top board and described side plate, what make described top board is forced to Deformation control in 0.05mm, and repeatable accuracy is at 0.02mm.
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| CN103482082B (en) * | 2013-08-12 | 2016-11-23 | 上海卫星工程研究所 | A kind of Modular micro-satellite platform configuration |
| CN105510734B (en) * | 2015-11-26 | 2018-07-24 | 中国空间技术研究院 | A kind of satellite ground systems grade electrical property verification platform |
| CN107738761B (en) * | 2017-09-06 | 2020-11-10 | 上海卫星工程研究所 | Adjustable mounting structure suitable for large-size thin-wall storage box of high-orbit satellite |
| CN112676767B (en) * | 2020-11-16 | 2023-06-23 | 中国航发西安动力控制科技有限公司 | Assembling method of high-precision form and position tolerance quick-change tool with vertical plate |
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| 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 |
| CN102001452A (en) * | 2010-11-08 | 2011-04-06 | 航天东方红卫星有限公司 | Method for realizing integration of energy control and main force bearing plate of satellite |
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| KR101008142B1 (en) * | 2008-08-07 | 2011-01-14 | 한국항공우주연구원 | Advanced Spacecraft Integration Dolly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102001452A (en) * | 2010-11-08 | 2011-04-06 | 航天东方红卫星有限公司 | Method for realizing integration of energy control and main force bearing plate of satellite |
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