CN107932189A - Satellite structure dressing process monitoring chatter System and method for - Google Patents

Satellite structure dressing process monitoring chatter System and method for Download PDF

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Publication number
CN107932189A
CN107932189A CN201711208706.7A CN201711208706A CN107932189A CN 107932189 A CN107932189 A CN 107932189A CN 201711208706 A CN201711208706 A CN 201711208706A CN 107932189 A CN107932189 A CN 107932189A
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China
Prior art keywords
vibration
satellite
patch
laser
dressing process
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CN201711208706.7A
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CN107932189B (en
Inventor
刘锦
胡晶晶
周志涛
吴璋
汪超
刘良威
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Shanghai Institute of Satellite Equipment
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Shanghai Institute of Satellite Equipment
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/12Arrangements for observing, indicating or measuring on machine tools for indicating or measuring vibration
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The invention discloses a kind of satellite structure dressing process monitoring chatter system and method, which includes numerical control floor milling machine, numerical control handle of a knife, packaged type turntable, adjustable up-down platform, laser vibration measurer, data collector, the interior industrial computer for being loaded with vibration data processing software;It is characterized in that, the adjustable up-down platform is installed on outside lathe vibration isolation ditch on ground by turntable guide rail, the adjustable up-down platform is slidably mounted on the top of the turntable guide rail, the laser vibration measurer is placed on above the adjustable up-down platform, it is connected by cable with the data collector, the interior industrial computer for being loaded with vibration data processing software, is used for realization the collection and the conversion of A/D signals of vibration data;The numerical control handle of a knife is installed in the main shaft of the numerical control floor milling machine.The present invention can effectively realize monitoring chatter and suppression in satellite structure platform assembling dressing process, improve finishing surface quality, reduce the risk that satellite dressing process flutter causes celestial body to damage.

Description

Satellite structure dressing process monitoring chatter System and method for
Technical field
The present invention relates to machinery manufacturing technology field, and in particular, to a kind of satellite structure dressing process monitoring chatter system System and method.
Background technology
Satellite structure generally uses the repeatable dismounting case structure that cylinder plate and truss are composed, it is necessary to be spaceborne instrument Equipment provides fixed installation interface and keeps certain precision.Since satellite structure is weak rigid thin-walled, truss mostly, combine Process and flutter is easily produced in dressing process, cross conference when amplitude and make it that cutting-in is excessive, the cutting force increase of cutter, this not only can Deteriorate the quality of finished surface, can not ensure the positional precision of mounting surface, or even celestial body structure can be damaged, bring about great losses.
In conventional satellite finishing process, the experience of operating personnel is relied primarily on, according to the chatter mark in cutting face and cutting During sound judge processing whether flutter, can not add in real time and quantitative judgement flutter situation and process risk and difficulty Degree.In view of conventional method there are the shortcomings that, innovative design of the present invention it is a kind of applied to satellite structure platform " satellite structure is repaiied It has suffered journey monitoring chatter System and method for ", the real-time monitoring of flutter in satellite structure platform dressing process is have effectively achieved, and According to monitoring result Optimizing Cutting Conditions, the accuracy of manufacture and quality requirement of satellite structure platform disclosure satisfy that.
Currently without the explanation or report for finding technology similar to the present invention, money similar both at home and abroad is also not yet collected into Material.
The content of the invention
For in the prior art the defects of, the object of the present invention is to provide a kind of satellite structure Platform Satellite improvement of breed mistake Journey monitoring chatter System and method for, solving can not cause with quantitative judgement flutter in real time in conventional satellite finishing process Process there are machined surface quality is poor, celestial body there are the problems such as damage risk, suitable for the assembling system of satellite structure platform Make process.
The present invention is achieved by the following technical solutions:
A kind of satellite structure dressing process monitoring chatter system, including numerical control floor milling machine, numerical control handle of a knife, packaged type turn Platform, adjustable up-down platform, laser vibration measurer, data collector, the interior industrial computer for being loaded with vibration data processing software;Institute State adjustable up-down platform to be installed on outside lathe vibration isolation ditch on ground by turntable guide rail, the adjustable up-down platform slides peace Mounted in the top of the turntable guide rail, the laser vibration measurer is placed on above the adjustable up-down platform, by cable with The data collector, the interior industrial computer for being loaded with vibration data processing software are connected, and are used for realization the collection of vibration data Changed with A/D signals;The numerical control handle of a knife is installed in the main shaft of the numerical control floor milling machine.
Present invention also offers a kind of satellite structure dressing process monitoring chatter method, comprise the following steps:
Step 1:Complete building for satellite structure dressing process monitoring chatter system;
Step 2:Satellite structure is lifted to packaged type turntable, clamping is fixed;
Step 3:Amesdial is installed on lathe, pressure table measures patch on satellite structure top plate, according to measurement data, calculates Patch allowance;
Step 4:Milling cutter is installed on numerical control of machine tools handle of a knife, numerical programming processing program, sets machined parameters, carries out The processing of satellite patch;
Step 5:By rotating or moving packaged type turntable, satellite patch location to be processed is adjusted so that laser Vibration Meter Patch periphery vibration signal can be gathered;
Step 6:Vibration signal is gathered by laser vibration measurer, dressing process flutter situation is monitored according to amplitude, if occurring Flutter then stops cutting, re-optimization machined parameters;
Step:7:Repeat step 5 and step 6, complete all satellite patch processing;
Step 8:Satellite patch composition face precision is measured, if precision is unsatisfactory for requiring, repeat step 5- steps 7, until Precision is met the requirements.
Preferably, the step 1 specifically comprises the following steps:
Step 1.1:Laser vibration measurer (containing stent) is installed on lifting platform;
Step 1.2:Adjust hoistable platform so that laser vibration measurer gauge head is highly higher than satellite structure machined surface;
Step 1.3:Adjust laser vibration measurer gauge head angle so that laser beam can measure satellite structure and be processed patch periphery Structural slab plate surface;
Step 1.4:It is connected by cable by laser vibration measurer is connected with data collector;
Step 1.5:Data acquisition software is set, and sample rate is generally 400Hz 0-5500Hz, time interval 1/ 4000s-1/6000s, frequency resolution are generally chosen for 1Hz-1.5Hz;Input displacement signalling channel, input speed are set respectively Signalling channel;Flutter amplitude is set, generally takes ± 0.01mm.
Preferably, the step 6 specifically comprises the following steps:
Step 6.1:By rotating or moving packaged type turntable, satellite patch location to be processed is adjusted so that laser shakes Instrument can gather patch periphery vibration signal,
Step 6.2:The Laser emission window transmitting laser beam of laser vibration measurer gauge head, is aligned and is processed patch peripheral structure Plate surface;
Step 6.3:Data collector gathers vibration signal, and vibration signal is imported into industry control meter in real time by data-interface In data acquisition software on calculation machine, cutting vibration amplitude is recorded and observes in real time, if vibration amplitude is more than the flutter width set Value, then stop cutting, reset machined parameters.
Preferably, the step 5 specifically comprises the following steps:
Step 5.1:According to processed patch location, mobile or rotating table so that the transmitting of laser vibration measurer gauge head swashs Light beam can monitor patch peripheral structure surface;
Step 5.2:If laser beam can not detect patch, adjustment laser vibration measurer height and angle by machine tool chief axis interference Degree.
Compared with prior art, the present invention has following beneficial effect:Satellite structure dressing process proposed by the present invention Monitoring chatter System and method for, can monitor flutter situation in satellite structure dressing process in real time, be cut according to monitoring result optimization Parameter is cut, celestial body structural damage risk is reduced, disclosure satisfy that the accuracy of manufacture and quality requirement of satellite structure platform;The present invention exists Space industry has a wide range of applications, and the present invention also may extend to the other industry of similar demand, economic benefits.
Brief description of the drawings
Fig. 1 is the overall structure signal under a kind of satellite structure dressing process monitoring chatter working state of system of the present invention Figure.
Fig. 2 is a kind of satellite structure dressing process monitoring chatter system composition figure of the present invention.
Fig. 3 is a kind of step flow chart of satellite structure dressing process monitoring chatter method of the present invention.
In figure:1- numerical control floor milling machines;2- satellite structures;3- satellite structures load installs patch;4- packaged type turntables; 5- turntable guide rails;6- adjustable up-down platforms;7- laser vibration measurers;8- numerical control handle of a knifes;9- laser vibration measurer mounting brackets;10- Data collector;11- contains the industrial computer of vibration data processing software;The laser beam that 12- laser vibration measurers are sent;13- Cable.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiments will be helpful to the technology of this area Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention Protection domain.
As Figure 1-Figure 2, an embodiment of the present invention provides a kind of satellite structure dressing process monitoring chatter system, including Numerical control floor milling machine 1, adjustable up-down platform 6, laser vibration measurer 7, laser vibration measurer mounting bracket 9,10 and of data collector The industrial computer and 11 of vibration data processing software is contained, adjustable up-down platform 6 is fixed on the outer ground of lathe vibration isolation ditch, The laser vibration measurer 7 installs the top for laser vibration measurer mounting bracket 9, being placed on the adjustable up-down platform 6, adjusts The height of adjustable up-down platform and position, it is ensured that laser vibration measurer gauge head is highly higher than satellite structure machined surface and laser beam It can monitor to be processed patch peripheral structure plate surface, the laser vibration measurer 7 is connected reality by cable with data collector 10 The collection of existing vibration data and the conversion of A/D signals, the data collector 10 are connected real by cable 13 with industrial computer 11 Existing vibration data processing, the numerical control handle of a knife 8 are installed in 1 main shaft of numerical control floor milling machine.
As shown in figure 3, the embodiment of the present invention additionally provides a kind of satellite structure dressing process monitoring chatter method, including with Lower step:
Step 1:Building for satellite structure dressing process monitoring chatter system is completed, is specifically included:
Step 1.1:Laser vibration measurer (containing stent) is installed on lifting platform;
Step 1.2:Adjust hoistable platform so that laser vibration measurer gauge head is highly higher than satellite structure machined surface;
Step 1.3:Adjust laser vibration measurer gauge head angle so that laser beam can measure satellite structure and be processed patch periphery Structural slab plate surface;
Step 1.4:It is connected by cable by laser vibration measurer is connected with data collector;
Step 1.5:Data acquisition software is set, and sample rate is to be generally 400Hz 0-5500Hz, time interval 1/ 4000s-1/6000s, frequency resolution are generally chosen for 1Hz-1.5Hz;Input displacement signalling channel, input speed are set respectively Signalling channel;Flutter amplitude is set, generally takes ± 0.01mm.
Step 2:Satellite structure is lifted to packaged type turntable, clamping is fixed;
Step 3:Amesdial is installed on lathe, pressure table measures patch on satellite structure top plate, according to measurement data, calculates Patch allowance;
Step 4:Milling cutter is installed on numerical control of machine tools handle of a knife, numerical programming processing program, sets machined parameters, carries out The processing of satellite patch;
Step 5:By rotating or moving packaged type turntable, satellite patch location to be processed is adjusted so that laser Vibration Meter Patch periphery vibration signal can be gathered;Specifically include
Step 5.1:According to processed patch location, mobile or rotating table so that the transmitting of laser vibration measurer gauge head swashs Light beam can monitor patch peripheral structure surface;
Step 5.2:If laser beam can not detect patch, adjustment laser vibration measurer height and angle by machine tool chief axis interference Degree.
Step 6:Vibration signal is gathered by laser vibration measurer, dressing process flutter situation is monitored according to amplitude, if occurring Flutter then stops cutting, re-optimization machined parameters;Specifically include:
Step 6.1:By rotating or moving packaged type turntable, satellite patch location to be processed is adjusted so that laser shakes Instrument can gather patch periphery vibration signal,
Step 6.2:The Laser emission window transmitting laser beam of laser vibration measurer gauge head, is aligned and is processed patch peripheral structure Plate surface;
Step 6.3:Data collector gathers vibration signal, and vibration signal is imported into industry control meter in real time by data-interface In data acquisition software on calculation machine, cutting vibration amplitude is recorded and observes in real time, if vibration amplitude is more than the flutter width set Value, then stop cutting, reset machined parameters.
Step:7:Repeat step 5 and step 6, complete all satellite patch processing;
Step 8:Satellite patch composition face precision is measured, if precision is unsatisfactory for requiring, repeat step 5- steps 7, until Precision is met the requirements.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow Ring the substantive content of the present invention.

Claims (5)

1. a kind of satellite structure dressing process monitoring chatter system, including numerical control floor milling machine, numerical control handle of a knife, packaged type turn Platform, adjustable up-down platform, laser vibration measurer, data collector, the interior industrial computer for being loaded with vibration data processing software;Its It is characterized in that, the adjustable up-down platform is installed on outside lathe vibration isolation ditch on ground by turntable guide rail, the adjustable liter Drop platform is slidably mounted on the top of the turntable guide rail, and the laser vibration measurer is placed on the adjustable up-down platform Side, is connected with the data collector, the interior industrial computer for being loaded with vibration data processing software by cable, is used for realization and shakes The collection and the conversion of A/D signals of dynamic data;The numerical control handle of a knife is installed in the main shaft of the numerical control floor milling machine.
A kind of 2. satellite structure dressing process monitoring chatter method, it is characterised in that comprise the following steps:
Step 1:Complete building for satellite structure dressing process monitoring chatter system;
Step 2:Satellite structure is lifted to packaged type turntable, clamping is fixed;
Step 3:Amesdial is installed on lathe, pressure table measures patch on satellite structure top plate, according to measurement data, calculates patch Allowance;
Step 4:Milling cutter is installed on numerical control of machine tools handle of a knife, numerical programming processing program, sets machined parameters, carries out satellite The processing of patch;
Step 5:By rotating or mobile packaged type turntable, satellite patch location to be processed is adjusted so that laser Vibration Meter can be with Gather patch periphery vibration signal;
Step 6:Vibration signal is gathered by laser vibration measurer, dressing process flutter situation is monitored according to amplitude, if there is flutter Then stop cutting, re-optimization machined parameters;
Step:7:Repeat step 5 and step 6, complete all satellite patch processing;
Step 8:Measure satellite patch composition face precision, if precision is unsatisfactory for requiring, repeat step 5- steps 7, until precision Meet the requirements.
3. satellite structure dressing process monitoring chatter method according to claim 2, it is characterised in that the step 1 has Body includes the following steps:
Step 1.1:Laser vibration measurer is installed on lifting platform;
Step 1.2:Adjust hoistable platform so that laser vibration measurer gauge head is highly higher than satellite structure machined surface;
Step 1.3:Adjust laser vibration measurer gauge head angle so that laser beam can measure satellite structure and be processed patch peripheral structure Plate plate surface;
Step 1.4:It is connected by cable by laser vibration measurer is connected with data collector;
Step 1.5:Data acquisition software is set, and sample rate is 400Hz 0-5500Hz, time interval 1/4000s-1/ 6000s, frequency resolution are generally chosen for 1Hz-1.5Hz;Input displacement signalling channel, input speed signal is set to lead to respectively Road;Flutter amplitude is set.
4. satellite structure dressing process monitoring chatter method according to claim 2, it is characterised in that the step 6 has Body includes the following steps:
Step 6.1:By rotating or moving packaged type turntable, satellite patch location to be processed is adjusted so that laser Vibration Meter can To gather patch periphery vibration signal,
Step 6.2:The Laser emission window transmitting laser beam of laser vibration measurer gauge head, is aligned and is processed patch peripheral structure plate table Face;
Step 6.3:Data collector gathers vibration signal, and vibration signal is imported into industrial computer in real time by data-interface On data acquisition software in, in real time record and observation cutting vibration amplitude, if vibration amplitude be more than set flutter amplitude, Stop cutting, reset machined parameters.
5. satellite structure dressing process monitoring chatter method according to claim 2, it is characterised in that the step 5 has Body includes the following steps:
Step 5.1:According to processed patch location, mobile or rotating table so that the laser beam of laser vibration measurer gauge head transmitting It can monitor patch peripheral structure surface;
Step 5.2:If laser beam can not detect patch, adjustment laser vibration measurer height and angle by machine tool chief axis interference.
CN201711208706.7A 2017-11-27 2017-11-27 Flutter monitoring method in satellite structure finishing process Active CN107932189B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1352586A (en) * 1999-05-27 2002-06-05 三洋电机株式会社 Method and apparatus for checking cutting tools
CN101913105A (en) * 2010-08-16 2010-12-15 合肥工业大学 Non-contact three-dimensional optical measuring head and method for in-situ measurement of numerical control machine
CN103372787A (en) * 2012-04-28 2013-10-30 台中精机厂股份有限公司 Intelligent adaptive cutting vibration suppression method and system of tool room machine
CN103624633A (en) * 2013-12-09 2014-03-12 大连理工大学 Micro-milling vibration precision measurement system taking laser micro-displacement sensor as measuring element
CN104400086A (en) * 2014-10-10 2015-03-11 南京航空航天大学 Aircraft skin mirror milling method and aircraft skin mirror milling device
CN104842219A (en) * 2015-02-12 2015-08-19 上海卫星装备研究所 Satellite structure platform multi-procedure intensive type repairing system and method
CN105500115A (en) * 2016-02-24 2016-04-20 南京工程学院 Detection system for tool chattering in milling and detection method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1352586A (en) * 1999-05-27 2002-06-05 三洋电机株式会社 Method and apparatus for checking cutting tools
CN101913105A (en) * 2010-08-16 2010-12-15 合肥工业大学 Non-contact three-dimensional optical measuring head and method for in-situ measurement of numerical control machine
CN103372787A (en) * 2012-04-28 2013-10-30 台中精机厂股份有限公司 Intelligent adaptive cutting vibration suppression method and system of tool room machine
CN103624633A (en) * 2013-12-09 2014-03-12 大连理工大学 Micro-milling vibration precision measurement system taking laser micro-displacement sensor as measuring element
CN104400086A (en) * 2014-10-10 2015-03-11 南京航空航天大学 Aircraft skin mirror milling method and aircraft skin mirror milling device
CN104842219A (en) * 2015-02-12 2015-08-19 上海卫星装备研究所 Satellite structure platform multi-procedure intensive type repairing system and method
CN105500115A (en) * 2016-02-24 2016-04-20 南京工程学院 Detection system for tool chattering in milling and detection method thereof

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