CN104268325A - Automatic modelling method for coordinate measuring machine model - Google Patents
Automatic modelling method for coordinate measuring machine model Download PDFInfo
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- CN104268325A CN104268325A CN201410477021.2A CN201410477021A CN104268325A CN 104268325 A CN104268325 A CN 104268325A CN 201410477021 A CN201410477021 A CN 201410477021A CN 104268325 A CN104268325 A CN 104268325A
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Abstract
The invention provides an automatic modeling method for a coordinate measuring machine model to satisfy intuitive, accurate, convenient and rapid requirements of construction of the coordinate measuring machine model. The automatic modeling method for the coordinate measuring machine model comprises the following steps of decomposing the coordinate measuring machine model into a measuring platform, an indexing base, an indexing rotary ball, an extension rod and a measuring head and accordingly establishing a component model library according to the above category; selecting and configuring models of the components forming into the measuring machine model through a model configuration file and positioning and assembling according to spatial position relationships between the component models. The automatic modeling method for the coordinate measuring machine model has the advantages of achieving automatic modeling of coordinate measuring machine models in different types and with different measuring head sizes, providing detection environment model foundations for route planning, virtual simulation and optimization and automatic programming of product part detection and being convenient to expand the component model library, reasonable in defining and expressing the measuring machine models through the model configuration file and high in automatic modelling efficiency.
Description
The present invention relates to a kind of three coordinate measuring machine model Auto-Modelling Technology, be related specifically to a kind of three coordinate measuring machine model method for automatic modeling.
Background technology
Adopt three coordinate measuring machine when detecting product and parts, all need to set up intuitively and three-dimensional measurement environment, i.e. three coordinate measuring machine model accurately.Three coordinate measuring machine model generally includes measuring table, the gauge head of different size, extension rod, indexing base and fixture etc.Three coordinate measuring machine model be carry out product and parts detect needed for carrying out path planning, virtual emulation checking and optimizing, and the basis of automated programming etc.Obviously, set up three coordinate measuring machine model not only need directly perceived and precisely, also need convenient and quick.
Summary of the invention
Set up three coordinate measuring machine model for meeting not only needs are directly perceived and precisely, also need the demands such as convenient and quick, the present invention proposes a kind of three coordinate measuring machine model method for automatic modeling.Three coordinate measuring machine model decomposition is measuring table, indexing base, calibration screw, extension rod and gauge head five parts by three coordinate measuring machine model method for automatic modeling of the present invention, and classifies with this and set up partial model storehouse; The each partial model of model configuration file to composition measuring machine model is adopted to select and configure, namely system is by reading and analytic model configuration file, from partial model storehouse, automatically select and import each partial model of corresponding composition measuring machine model in CAD system, and position according to the spatial relation between each partial model and assemble.
Further, the spatial relation of three coordinate measuring machine model method for automatic modeling measuring table of the present invention, indexing base, calibration screw, extension rod and gauge head 5 parts is that measuring table end face is parallel with XY plane or overlap, indexing base bottom surface and XY planes overlapping, the centre of sphere of calibration screw overlaps with coordinate origin, the end face of extension rod and XY planes overlapping, gauge head masthead face and XY planes overlapping.
Further, in the partial model storehouse of three coordinate measuring machine model method for automatic modeling composition measuring machine model of the present invention, all parts model all carries out Independent modeling according to physical size, namely sets up the three-dimensional entity model of each building block of three coordinate measuring machine model respectively by physical size; Wherein, measuring table, gauge head and extension rod are provided with the model of more than two or two.
Further, three coordinate measuring machine model method for automatic modeling gauge head pole length of the present invention is defined as the distance of end face to the gauge head centre of sphere.
Further, the model configuration file of three coordinate measuring machine model method for automatic modeling of the present invention comprises measurement model configuration file, and suffix is called CMMF, i.e. the abbreviation of Coordinate Measure Machine File; Extension rod model configuration file, suffix is EXT, i.e. the abbreviation of Extension bar; Gauge head model configuration file, suffix is STYLI, i.e. Styli; Wherein,
Measurement model configuration file, i.e. * .CMMF file, the title of definition measuring machine model and each parts of this measuring machine model of composition, quantity and sequence number, and the model profile name of each parts and spatial positional information; Wherein, the keyword in file describes component names, and keyword character string below describes parts profile name, and character string parameter value below describes the spatial positional information of parts; Solid model title one_to_one corresponding in described component names and partial model storehouse; Described spatial positional information refers to the component of each parts on three coordinates;
Extension rod model configuration file, i.e. * .EXT file, the length of definition extension rod title, bar and diameter; Wherein, extension rod title and model profile name are consistent, and contain the numerical value of pole length and diameter two parameters in file name;
Gauge head model configuration file, i.e. * .STYLI file, the pole length of definition gauge head title, gauge head and diameter, wherein, gauge head title and model profile name are consistent, and contain the numerical value of gauge head pole length and diameter two parameters in file name.
Further, three coordinate measuring machine model method for automatic modeling of the present invention, model configuration file adopts the mutual form of text or the automatic form of program to define its content, edit, check and revise.
Further, three coordinate measuring machine model method for automatic modeling of the present invention, adopts each partial model of model configuration file to composition measuring machine model select and configure, comprises the following steps:
(1) measurement model configuration file is read, i.e. CMMF file, the keyword in extraction document and followed by the character string after keyword, i.e. component files title, and parameter value, i.e. space of components positional information;
(2) resolve the keyword in CMMF file, the solid model title in the component names of reading and partial model storehouse is matched, and extracts corresponding model file name and spatial positional information; If extension rod or gauge head, also need to read respective model configuration file, i.e. * .EXT file or * .STYLI file, and therefrom extraction model profile name and parameter value;
(3) import each component entity model of composition measuring machine model, from partial model storehouse, automatically read this corresponding component entity model file according to component names, and directly import in CAD system;
(4) locus conversion, according to the spatial positional information of these parts read, i.e. the component of these parts on three coordinates, carries out locus conversion and assembling to this component entity model in CAD system;
(5) repeated execution of steps (2) is to (4), until resolved all keywords, finally sets up complete three coordinate measuring machine model.
The Advantageous Effects of three coordinate measuring machine model method for automatic modeling of the present invention is the automatic modeling of three coordinate measuring machine model that can realize different model, different gauge head size, carries out path planning, virtual emulation checking for product component detects and to optimize and automated programming provides testing environment model basis; The expansion of partial model storehouse is convenient, and define with model configuration file and represent that measuring machine model is comparatively reasonable, automatic modeling efficiency is high.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of three coordinate measuring machine model method for automatic modeling measuring machine model of the present invention;
Accompanying drawing 2 is schematic flow sheets of three coordinate measuring machine model method for automatic modeling automatic modeling step of the present invention.
Below in conjunction with the drawings and specific embodiments, three coordinate measuring machine model method for automatic modeling of the present invention is further described.
Embodiment
Accompanying drawing 1 is the structural representation of three coordinate measuring machine model method for automatic modeling measuring machine model of the present invention, and in figure, l is measuring table, and 2 is indexing base, and 3 is calibration screw, and 4 is extension rod, and 5 is side head.As seen from the figure, three coordinate measuring machine model decomposition is measuring table 1, indexing base 2, calibration screw 3, extension rod 4 and gauge head 5 five parts by three coordinate measuring machine model method for automatic modeling of the present invention, and classifies with this and set up partial model storehouse; The each partial model of model configuration file to composition measuring machine model is adopted to select and configure, namely system is by reading and analytic model configuration file, from partial model storehouse, automatically select and import each partial model of corresponding composition measuring machine model in CAD system, and position according to the spatial relation between each partial model and assemble.
For guaranteeing measuring basis, the spatial relation of three coordinate measuring machine model method for automatic modeling measuring table of the present invention, indexing base, calibration screw, extension rod and gauge head 5 parts is that measuring table end face is parallel with XY plane or overlap, indexing base bottom surface and XY planes overlapping, the centre of sphere of calibration screw overlaps with coordinate origin, the end face of extension rod and XY planes overlapping, gauge head masthead face and XY planes overlapping.
For convenience of automatic modeling and the measurement accuracy after setting up measuring machine model, in the partial model storehouse of three coordinate measuring machine model method for automatic modeling composition measuring machine model of the present invention, all parts model all carries out Independent modeling according to physical size, namely sets up the three-dimensional entity model of each building block of three coordinate measuring machine model respectively by physical size; Wherein, measuring table, gauge head and extension rod are provided with the model of more than two or two.Thus, not only facilitate in automatic modeling process and can select all parts solid model easily, and ensure that the solid model selected conforms to the physical size of each parts, ensure measurement accuracy.For avoiding quoting ambiguity and personal error, three coordinate measuring machine model method for automatic modeling gauge head pole length of the present invention is defined as the distance of end face to the gauge head centre of sphere.
For convenience of the amendment or supplementary to each component names and solid model, the model configuration file of three coordinate measuring machine model method for automatic modeling of the present invention adopts the mutual form of text or the automatic form of program to define its content, edit, check and revise.The model configuration file of three coordinate measuring machine model method for automatic modeling of the present invention comprises measurement model configuration file, and suffix is called CMMF, i.e. the abbreviation of Coordinate Measure Machine File; Extension rod model configuration file, suffix is EXT, i.e. the abbreviation of Extension bar; Gauge head model configuration file, suffix is STYLI, i.e. Styli; Wherein,
Measurement model configuration file, i.e. * .CMMF file, the title of definition measuring machine model and each parts of this measuring machine model of composition, quantity and sequence number, and the model profile name of each parts and spatial positional information; Wherein, the keyword in file describes component names, and keyword character string below describes parts profile name, and character string parameter value below describes the spatial positional information of parts; Solid model title one_to_one corresponding in described component names and partial model storehouse; Described spatial positional information refers to the component of each parts on three coordinates.Such as, the definition measuring machine models such as RamHead, RotaryBall, Extension, Styli and CMMPlatform are adopted; Adopt Platform2000_5000_1500.CATPart to define measuring table solid model file, adopt AlphaImage(2000 × 5000 × 1500) and Delta_HA256318(2500 × 6300 × 1800) etc. define measuring table model.
Extension rod model configuration file, i.e. * .EXT file, the length of definition extension rod title, bar and diameter; Wherein, extension rod title and model profile name are consistent, and contain the numerical value of pole length and diameter two parameters in file name; Such as, Extension_60_14 and Extension_170_14 etc., wherein, title first digit below represents length, and second digit represents diameter.
Gauge head model configuration file, i.e. * .STYLI file, the pole length of definition gauge head title, gauge head and diameter, wherein, gauge head title and model profile name are consistent, and contain the numerical value of gauge head pole length and diameter two parameters in file name.Such as, Styli_50_3 and Styli_60_4 etc., wherein, title first digit below represents length, and second digit represents diameter.
Define, edit, check and revise owing to adopting the mutual form of text or the content of the automatic form of program to model configuration file, therefore, it is possible to modify to the parameter of solid model in partial model storehouse or expand easily as required.Such as, expand the Styli_30_2 gauge head that is of a size of 30mm × 2mm, as long as first copy a already present gauge head file being of a size of Styli_50_3 under gauge head file, comprise solid model file Styli_50_3.CATPart and model configuration file Styli_50_3.STYLI, then respectively the length of solid model in these two files is become 30mm and 2mm with diameter modifying, finally, be Styli_30_2.CATPart and Styli_30_2.STYLI by the name modifications of these two files, namely the expansion of the Styli_30_2 gauge head being of a size of 30mm × 2mm is completed.
Accompanying drawing 2 is schematic flow sheets of three coordinate measuring machine model method for automatic modeling automatic modeling step of the present invention, as seen from the figure, three coordinate measuring machine model method for automatic modeling of the present invention, adopt each partial model of model configuration file to composition measuring machine model select and configure, comprise the following steps:
(1) measurement model configuration file is read, i.e. CMMF file, the keyword in extraction document and followed by the character string after keyword, i.e. component files title, and parameter value, i.e. space of components positional information;
(2) resolve the keyword in CMMF file, the solid model title in the component names of reading and partial model storehouse is matched, and extracts corresponding model file name and spatial positional information; If extension rod or gauge head, also need to read respective model configuration file, i.e. * .EXT file or * .STYLI file, and therefrom extraction model profile name and parameter value;
(3) import each component entity model of composition measuring machine model, from partial model storehouse, automatically read this corresponding component entity model file according to component names, and directly import in CAD system;
(4) locus conversion, according to the spatial positional information of these parts read, i.e. the component of these parts on three coordinates, carries out locus conversion and assembling to this component entity model in CAD system;
(5) repeated execution of steps (2) is to (4), until resolved all keywords, finally sets up complete three coordinate measuring machine model.
The Advantageous Effects of three coordinate measuring machine model method for automatic modeling of the present invention is the automatic modeling of three coordinate measuring machine model that can realize different model, different gauge head size, carries out path planning, virtual emulation checking for product component detects and to optimize and automated programming provides testing environment model basis; The expansion of partial model storehouse is convenient, and define with model configuration file and represent that measuring machine model is comparatively reasonable, automatic modeling efficiency is high.
Claims (7)
1. a three coordinate measuring machine model method for automatic modeling, is characterized in that, is measuring table, indexing base, calibration screw, extension rod and gauge head five parts by three coordinate measuring machine model decomposition, and classifies with this and set up partial model storehouse; The each partial model of model configuration file to composition measuring machine model is adopted to select and configure, namely system is by reading and analytic model configuration file, from partial model storehouse, automatically select and import each partial model of corresponding composition measuring machine model in CAD system, and position according to the spatial relation between each partial model and assemble.
2. three coordinate measuring machine model method for automatic modeling according to claim 1, it is characterized in that, the spatial relation of measuring table, indexing base, calibration screw, extension rod and gauge head 5 parts is that measuring table end face is parallel with XY plane or overlap, indexing base bottom surface and XY planes overlapping, the centre of sphere of calibration screw overlaps with coordinate origin, the end face of extension rod and XY planes overlapping, gauge head masthead face and XY planes overlapping.
3. three coordinate measuring machine model method for automatic modeling according to claim 1, it is characterized in that, in partial model storehouse, all parts model all carries out Independent modeling according to physical size, namely sets up the three-dimensional entity model of each building block of three coordinate measuring machine model respectively by physical size; Wherein, measuring table, gauge head and extension rod are provided with the model of more than two or two.
4. three coordinate measuring machine model method for automatic modeling according to claim 1, it is characterized in that, gauge head pole length is defined as the distance of end face to the gauge head centre of sphere.
5. three coordinate measuring machine model method for automatic modeling according to claim 1, it is characterized in that, model configuration file comprises measurement model configuration file, and suffix is called CMMF, i.e. the abbreviation of Coordinate Measure Machine File; Extension rod model configuration file, suffix is EXT, i.e. the abbreviation of Extension bar; Gauge head model configuration file, suffix is STYLI, i.e. Styli; Wherein,
Measurement model configuration file, i.e. * .CMMF file, the title of definition measuring machine model and each parts of this measuring machine model of composition, quantity and sequence number, and the model profile name of each parts and spatial positional information; Wherein, the keyword in file describes component names, and keyword character string below describes parts profile name, and character string parameter value below describes the spatial positional information of parts; Solid model title one_to_one corresponding in described component names and partial model storehouse; Described spatial positional information refers to the component of each parts on three coordinates;
Extension rod model configuration file, i.e. * .EXT file, the length of definition extension rod title, bar and diameter; Wherein, extension rod title and model profile name are consistent, and contain the numerical value of pole length and diameter two parameters in file name;
Gauge head model configuration file, i.e. * .STYLI file, the pole length of definition gauge head title, gauge head and diameter, wherein, gauge head title and model profile name are consistent, and contain the numerical value of gauge head pole length and diameter two parameters in file name.
6. three coordinate measuring machine model method for automatic modeling according to claim 1, is characterized in that, model configuration file adopts the mutual form of text or the automatic form of program to define its content, edit, check and revise.
7. three coordinate measuring machine model method for automatic modeling according to claim 1, is characterized in that, adopts each partial model of model configuration file to composition measuring machine model select and configure, comprises the following steps:
(1) measurement model configuration file is read, i.e. CMMF file, the keyword in extraction document and followed by the character string after keyword, i.e. component files title, and parameter value, i.e. space of components positional information;
(2) resolve the keyword in CMMF file, the solid model title in the component names of reading and partial model storehouse is matched, and extracts corresponding model file name and spatial positional information; If extension rod or gauge head, also need to read respective model configuration file, i.e. * .EXT file or * .STYLI file, and therefrom extraction model profile name and parameter value;
(3) import each component entity model of composition measuring machine model, from partial model storehouse, automatically read this corresponding component entity model file according to component names, and directly import in CAD system;
(4) locus conversion, according to the spatial positional information of these parts read, i.e. the component of these parts on three coordinates, carries out locus conversion and assembling to this component entity model in CAD system;
(5) repeated execution of steps (2) is to (4), until resolved all keywords, finally sets up complete three coordinate measuring machine model.
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| CN110715627B (en) * | 2019-11-14 | 2021-10-29 | 昌河飞机工业（集团）有限责任公司 | Helicopter maneuvering component-oriented three-coordinate measuring method |
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Application publication date: 20150107 |