CN106875476A - A kind of method for scanning the recasting new process data of mold insert designs - Google Patents
A kind of method for scanning the recasting new process data of mold insert designs Download PDFInfo
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- CN106875476A CN106875476A CN201710156713.0A CN201710156713A CN106875476A CN 106875476 A CN106875476 A CN 106875476A CN 201710156713 A CN201710156713 A CN 201710156713A CN 106875476 A CN106875476 A CN 106875476A
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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Abstract
The invention provides a kind of method for scanning the recasting new process data of mold insert designs, step is as follows:The machining benchmark of die insert to be remake is determined before scanning;The die insert repaired by hand of recasting is treated before scanning;Die insert to be remake after using reparation is scanned the foundation to form cloud data as the new process data design of die insert to be remake in ATOS equipment and three coordinate measuring machine respectively;In ATOS equipment scanning result carried out being calculated tri patch cloud data after the end of scan;Deburring or flange cutting edge contour, aperture and hole position cloud data are obtained in three coordinate measuring machine;After judging that scanning element cloud is up-to-standard, cloud data is superimposed, the whole scanning data of die insert to be remake is obtained, as the new process data design considerations of die insert to be remake;The uniformity of this method strict guarantee die insert to be remake and original mould insert, it is not necessary to debug again, shorten the cycle, it is cost-effective, it is to avoid user's production stops platform wait.
Description
Technical field
The present invention relates to a kind of method for scanning the recasting new process data of mold insert designs, it is adaptable to institute's recasting in need
The mould of insert.
Background technology
In conventional mould production, due to a variety of causes, qualified die insert will be debugged and damaged, or user makes
Worn and torn with rear mold insert, it is desirable to which the spare part of rapid wear die insert is provided, this requires the required die insert of remanufacturing,
Die insert as to be remake.Conventional recasting mode is exactly the process for repeating first round manufacture, i.e.,:Again material is carried to add by theory
Die insert required for the processing of work reprogramming data, ressembles, debugs, and largely takes device resource, lost labor into
This, extends the manufacturing cycle, or even user's production stops production and waits.
The content of the invention
It is an object of the invention to provide it is a kind of scan recasting the new process data of mold insert designs method, its will damage or
Die insert the to be remake scanning generation cloud data of abrasion, by the use of cloud data as theoretical foundation is scanned, enters in software
Row reverse-engineers the new process data of die insert to be remake.
First with a kind of contactless ATOS optical scanning devices of German GOM companies exploitation to treating for being damaged or worn out
Recasting die insert type face and structural plane carry out ATOS optical scanners, right in ATOS optical scanning device systems after the end of scan
Scanning result carries out being calculated tri patch cloud data, file type:Certificate Trust List is .stl forms;Secondly utilize
Three coordinate measuring engine measurement profile, aperture and hole position, form cloud data;Cloud data is scanned using ATOS optical scanning devices
With three coordinate measuring machine scanning cloud data as theoretical foundation, the new of die insert to be remake is carried out in CATIA softwares and is added
Work design data.
Concrete technical scheme of the invention is as follows:
1. it is a kind of scan recasting the new process data of mold insert designs method, it is characterised in that:Comprise the following steps:
The scanning benchmark and machining benchmark of die insert to be remake are determined before step one, scanning;
Recasting die insert repaired by hand is treated before step 2, scanning;
Step 3, by reparation after die insert to be remake respectively on ATOS optical scanning devices and three coordinate measuring machine
Enterprising scanning, forms cloud data, used as the foundation that the new process data of die insert to be remake is designed;
After step 4, the end of scan, scanning result be calculated in ATOS optical scanning device systems and treats weight
The tri patch cloud data of molding jig insert;Obtained in three coordinate measuring machine device systems die insert deburring to be remake or
Flange cutting edge contour, aperture and hole position cloud data;After judging that scanning element cloud is up-to-standard, die insert ATOS to be remake is swept
The cloud data superposition scanned with three coordinates is retouched, the whole scanning data of die insert to be remake is obtained, as mould to be remake
The new process data design considerations of insert;The new process data design work of die insert to be remake includes:Inlayed using mould to be remake
Block ATOS scans cloud data and three coordinates scan cloud data as theoretical foundation, and die insert cloud data to be remake is led
In the CATIA software environments of the original process data where entering die insert to be remake, by scanning after die insert to be remake
Cloud data and original process data aligned in position, process points cloud grid data;Reverse-engineer die insert datum level to be remake;
Treat recasting die insert pincers worker repaired by hand region and carry out transformation compensation, treat recasting die insert point cloud type face and extend and put
Greatly;Treat recasting die insert outline data, hole position, pore size data and extract optimization;Form the novel entities of die insert to be remake
Process data.
Further technical scheme includes:
The detailed process of step one is as follows:
(1) machining benchmark of die insert to be remake uses die insert to be remake in base plate or the mounting structure of installing plate
Face, the mounting structure face of die insert to be remake refers to die insert to be remake in base plate or three sides of being mutually perpendicular to of installing plate
To positioning, mounting plane, the datum clamp face for limiting the free degree of the die insert to be remake on base plate or installing plate;
Die insert to be remake is pulled down from mould, if the original machining benchmark of die insert to be remake is mounting structure face, is checked
The flatness and perpendicularity and surface roughness in mounting structure face, flatness tolerance band tolerance value are controlled in 0.03mm, perpendicularity
Tolerance range tolerance value is controlled in 0.1mm, and surface roughness reaches 1.6, you can be considered as die insert mounting structure face to be remake
It is intact, it is possible to use the original mounting surface benchmark of die insert to be remake as die insert to be remake scanning benchmark and processing base
It is accurate;
(2) mounting surface for being functionally equivalent to die insert the to be remake processing base in the machining benchmark hole of die insert to be remake
Standard, refers to the hole that benchmark is elected to be in hole base system of fits, and the lower deviation in hole is zero, if the machining benchmark of die insert to be remake
It is two datum holes of at least same rectilinear direction, checks that datum hole surface roughness will reach 0.8, squareness tolerance band tolerance
In 0.1mm, hole position allowance control is considered as intact within ± 0.02mm, that is, can be used to detect and processes for value control;
(3) when die insert original structure datum level to be remake or datum hole are damaged or irregular, perpendicularity, flatness,
Surface roughness can not meet the required precision in above-mentioned datum clamp face and machining benchmark hole, it is necessary to heavy on numerically controlled processing equipment
Newly process die insert datum clamp face to be remake or datum hole;Die insert benchmark to be remake of reforming has three kinds of modes:First
It is to re-work out three vertical planes in direction of die insert to be remake to plant die insert benchmark mode to be remake of reforming;Second
Die insert benchmark mode to be remake of reforming is to re-work out die insert bottom surface to be remake, side vertical plane and a hole;
The third die insert benchmark mode to be remake of reforming is to re-work out die insert bottom surface to be remake as two apertures
Hole, described hole is the hole of accurate processing, such as pinhole or punching.
The detailed process of step 2 is as follows:
(1) because mould is in debugging and production and application, repeatedly debugging modification, product modification, matching modification are also carried out,
Some after recasting die insert to experience repeatedly freeze, process after the process such as remitted its fury, cause die insert type face to be remake
And profile freezes the surface defects such as remnants, burr, pincers worker is needed to treat recasting die insert region of problems before scanning
Repaired by hand is carried out, the abrasive machine such as remnants, burr that freezes of die insert to be remake simply is polished removal, make mould to be remake
Tool insert surface levels off to fairing and smooths, it is ensured that cloud is put after scanning, and also fairing is smoothed, with ensure it is reverse after mould remake edge
The new process data type face fairing of block is smooth, continual curvature;
(2) there is the mass defects such as dark hole, sand holes in some die insert type faces to be remake, should be to blemish surface at
Reason, selection putty, resin etc. are easy to the material of filled-type face and easy processing, and the defective position in surface is filled and led up, and are used in combination
Sand paper is ground, and smooths processing region surface smoothing, it is ensured that cloud is put after scanning, and also fairing is smoothed, with waiting after ensureing inversely
The new process data type face fairing of recasting die insert is smoothed, continual curvature.
The detailed process of step 3 is as follows:
(1) be ensure scanning benchmark precision, by reparation after die insert remake be placed on workbench, and put
Die insert bottom surface to be remake is wiped clean clearly when putting, it is ensured that die insert soffit plane degree to be remake will reach 0.04;Treat
The type face of recasting die insert entity, structural plane, profile, pin-and-hole, screw hole carry out ATOS optical scanners;Treat recasting mould edge
During block domain type Surface scan, if punching technology content, should insert corresponding on the punching position of die insert to be remake
Pin, scans and together scans the pin of insertion when recasting die insert type face, to ensure the degree of accuracy of hole position;
(2) die insert to be remake is gone on three-coordinate measuring machine again in a manner described, measured hole side is ensured during measurement
Edge smooths impulse- free robustness, it is to avoid jagged interference effect certainty of measurement during the adapter dome contact testee of measuring machine;To protect
Two kinds of device measuring unifying datums of card, will utilize the benchmark of ATOS optical scanners when being measured on three coordinate measuring machine, measurement is straight
Repair cutting edge, die hole and aperture and hole position and the antirotation keys installation nest of pin-and-hole are installed;If die insert to be remake is wedge
Insert, that is, die insert to be remake is fixed on the Wedge mechanism of mould, for the installation pin-and-hole of die wedge insert to be remake
To be measured from insert bottom surface, it is to avoid the error that hole out of plumb is brought.
The detailed process of step 4 is as follows:
(1) synthesis result scanned according to die insert ATOS to be remake optical scanners and three coordinate measurements, judges to treat weight
Molding jig insert scanning element cloud quality;Judge that content includes:Die insert scanning element cloud type face to be remake whether have loss face,
Whether whether profile point cloud have that interruption is discontinuous, whether entire scan cloud data is complete, lack;Die insert scanning to be remake
Point cloud type face whether rimose defect;Whether die insert scanning cloud data to be remake repaired by hand area before scanning has not
Rule overlaps grid;
(2) judge after recasting die insert scanning element cloud is up-to-standard, proceed by die insert to be remake and newly process
Design data works;When the new process data of die insert of remaking is designed, first by scanning after die insert point cloud to be remake
Data are imported in the original process data environment of CATIA die inserts to be remake, with the original process data position of die insert to be remake
Alignment is put, that is, corresponds to position of the die insert to be remake in unitary mould structure;On the one hand, theory can be compared out to wait to remake
The deviation of the die insert to be remake in die insert process data and actual production, in the new process data of die insert to be remake
The compensation in major tasks region is considered during design, on the other hand, cloud data is scanned as foundation by the use of die insert to be remake,
The design of the new process data of die insert to be remake is carried out, can be made with qualified production is debugged with strict guarantee die insert to be remake
The uniformity of the die insert to be remake in;
(3) using the mode process points cloud grid such as a point cloud desaturation, plug-hole, point cloud be fairing-optimized, and variance analysis is carried out, is had
Body process is as follows:
A. a cloud information is checked, the points of single part, no more than 500,000, type face deviation is carried out within 0.02mm
Desaturation treatment;" curvature segmentation " order is applied to extract die insert scanning element cloud feature to be remake in CATIA environment gentle
Region, the larger position of Curvature varying and R are filtered out, and reapplying " desaturation of point cloud " order carries out a cloud desaturation, selects number
According to desaturation to 20%, data volume is effectively reduced, improve the accuracy of reference vector, reach a cloud normal vector optimization, be conducive to
Ensure surface accuracy;
B. when die insert of remaking is scanned, it is necessary in scanning area spray developing agent, while scanning mould to be remake
Place reference point in tool insert type face region;Die insert type face to be remake is referenced the region a little blocked in cloud data with regard to shape
Into aperture, in the reflective position of developer, aperture is also formed in cloud data, cause the cloud data type face after scanning there are many places
Small opening, middle use plug-hole order, many places small opening and screw and pin-and-hole is filled and led up, during plug-hole in ATOS optical scanning device systems
Ensure the fairness of a cloud, and defective position on a cloud is processed;
C. after the scanning element cloud of recasting die insert is by " curvature segmentation " and " put cloud desaturation ", tackle cloud data and enter
Row is checked, it is ensured that the normal orientation of curved surface is consistent with the scanning direction of point cloud, it is ensured that cloud data and original scan after treatment
The overall trend of point cloud is consistent;Curved surface with the original process data of die insert to be remake is reference, scans mould edge to be remake
The point cloud that block is obtained is measurement object, and treating recasting die insert theory state and produce reality state carries out variance analysis,
Variance analysis cloud atlas is generated in CATIA environment, deviation is only applicable to curved surface normal direction;
(4) benchmark is scanned according to die insert to be remake, it is reverse using " point cloud flyback type face " order in CATIA environment
Die insert processing datum to be remake is designed, die insert structure reference dimension to be remake will be scanned and optimized treatment, protected
The perpendicularity of all directions is demonstrate,proved, using die insert processing datum information to be remake after reverse, die insert to be remake is set up and is added
The work frame of reference;
(5) use requirement is disposably reached in order to ensure die insert to be remake, waits to remake being designed according to scan data
During the new process data of die insert, on the one hand to consider to carry out transformation compensation to pincers worker repaired by hand region, it is on the other hand right
Die insert abrasion to be remake carries out dosage compensation than more serious region;Put that cloud surface smoothing is smooth, continual curvature after scanning,
As point cloud quality can meet type face quality requirement, can meet programming process requirements, can directly be processed using point cloud;It is right
When a cloud quality can not meet above-mentioned type face quality requirement, when the new process data of die insert of remaking is designed, will treat
Recasting die insert scanning element cloud, using die insert type face to be remake is reverse-engineered in CATIA, is used as foundation
The gap of die insert dough sheet to be remake exists less than or equal to 0.03mm, type face allowance control after whole of " JION " order inspection is reverse
When within ± 0.02mm, type face quality requirement is as met;To consider that not big enough point cloud supplement type face extends to amplify, typically
Stretch out 15~20mm by theoretical boundary, to ensure that processing is complete, the new face for ultimately forming die insert remake processes
Data;
(6) when the new process data of die insert of remaking is designed, according to cloud data to profile, hole position, hole in CATIA
Footpath data are extracted;For having deburring, flange on the die insert to be remake that scans and rushing circular hole or irregularly-shaped hole cutting edge, repair
Side, flange profile connect into line by scanning element cloud, generate contour line, and light compliance to contour line carries out transformation and optimization treatment;
Original theory numerical value is pressed in punching aperture, and hole position is optimized to one decimal place by scanning element cloud positional precision;Screw hole belonged to
Hole, scan position and theoretical position deviation are within ± 0.3mm, you can utilize theoretical position;To ensure installation accuracy, wait to remake
The installation pin-and-hole of die insert is all using the modification for expanding or changing position, and it is latter that pin-and-hole positional precision is optimized to decimal point
Position, ultimately forms the new contour machining data of die insert to be remake;
(7) according to the new face of die insert to be remake, the new contour machining data, the knot beyond benchmark for reverse-engineering completion
Structure face is re-established in the three-dimensional geometry data of the new process data of die insert to be remake by theoretical X-Y scheme paper, is finally set
Count into die insert novel entities process data to be remake for program processing.
The positive effect of the present invention is, using a kind of method for scanning the recasting new process data of mold insert designs, will to treat weight
Molding jig insert ATOS scanning results and three coordinate scanning results are used as theoretical new with the comparing and reverse engineer of actual product
The foundation of process data, strict guarantee recasting rear mold insert is with the die insert to be remake of original production and application consistent
Property, using the new process data of die insert to be remake by reverse-engineering be programmed the recasting rear mold insert of processing without
Can be direct plungeed into again by debugging the process of advanced study and training again, after digital control processing and used, shorten the manufacturing cycle, it is cost-effective,
Avoid user's production and stop platform wait.
Brief description of the drawings
Fig. 1 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The mounting structure face of insert is used as scanning benchmark and the schematic diagram of machining benchmark;
Fig. 2 be it is of the present invention it is a kind of scan recasting the new process data of mold insert designs method in three coordinates survey
The schematic diagram of the cloud data of profile and hole obtained by amount machine measurement die insert to be remake;
Fig. 3 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data before the segmentation of insert scanning element cloud surface curvature;
Fig. 4 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data after the segmentation of insert scanning element cloud surface curvature;
Fig. 5 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data before insert scanning element cloud type face desaturation;
Fig. 6 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data after insert scanning element cloud type face desaturation;
Fig. 7 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data before insert scanning element cloud plug-hole and fairing processing;
Fig. 8 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data after insert scanning element cloud plug-hole and fairing processing;
Fig. 9 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The variance analysis cloud atlas that insert scanning element cloud is obtained with gross data contrast;
Figure 10 is reverse engineer in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The processing datum of die insert to be remake and the schematic diagram of machining benchmark coordinate system;
Figure 11 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
Has the schematic diagram that the type face of insert stretches out by theoretical boundary;
Figure 12 is reverse engineer in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The new face of die insert to be remake, new contour machining data;
Figure 13 is mould to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
Has the novel entities process data that the final design of insert is completed.
Specific embodiment
The present invention is described further with example below in conjunction with the accompanying drawings:Debugging it is qualified after die insert, production and
Worn and torn during use or damaged, it is necessary to remanufacture, die insert as to be remake.To ensure sweeping for die insert to be remake
The quality of data is retouched, it is necessary to die insert to be remake to be carried out the treatment work of the defects such as benchmark, type face, profile before scanning, it
Recycle ATOS optical scanning devices and three coordinate measuring machine to treat recasting die insert afterwards to be scanned, generate mould to be remake
Insert solid type face cloud data and the cloud data in profile and hole.When wait die insert of remaking new process data design, first
The CATIA of the original process data where the cloud data that die insert to be remake obtains imports die insert to be remake will be scanned
In software environment, by the cloud data of die insert to be remake and original process data aligned in position.On the one hand, can compare out
The deviation of the die insert to be remake in theory die insert process data to be remake and actual production, in die insert to be remake
New process data considers the compensation of key area when designing;On the other hand, die insert point cloud number to be remake is scanned using scanning
According to as foundation, the design of the new process data of die insert to be remake is carried out, can be with strict guarantee die insert to be remake and tune
Try the uniformity of the die insert to be remake in qualified production and application.
The specific steps process of this method is as follows:
First, the scanning benchmark and machining benchmark of die insert to be remake are determined before scanning:
(1) machining benchmark of die insert to be remake uses die insert to be remake in base plate or the mounting structure of installing plate
Face, the mounting structure face of die insert to be remake refers to die insert to be remake in base plate or three sides of being mutually perpendicular to of installing plate
To positioning, mounting plane, the datum clamp face for limiting the free degree of the die insert to be remake on base plate or installing plate;
Die insert to be remake is pulled down from mould, if the original machining benchmark of die insert to be remake is mounting structure face, is checked
The flatness and perpendicularity and surface roughness in mounting structure face, flatness tolerance band tolerance value are controlled in 0.03mm, perpendicularity
Tolerance range tolerance value is controlled in 0.1mm, and surface roughness reaches 1.6, you can be considered as die insert mounting structure face to be remake
It is intact, it is possible to use the original mounting surface benchmark of die insert to be remake as die insert to be remake scanning benchmark and processing base
It is accurate.Fig. 1 is die insert to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
Mounting structure face as scanning benchmark and machining benchmark schematic diagram.
(2) mounting surface for being functionally equivalent to die insert the to be remake processing base in the machining benchmark hole of die insert to be remake
Standard, refers to the hole that benchmark is elected to be in hole base system of fits, and the lower deviation in hole is zero, if the machining benchmark of die insert to be remake
It is two datum holes of at least same rectilinear direction, checks that datum hole surface roughness will reach 0.8, squareness tolerance band tolerance
In 0.1mm, hole position allowance control is considered as intact within ± 0.02mm, that is, can be used to detect and processes for value control.
(3) when die insert original structure datum level to be remake or datum hole are damaged or irregular, perpendicularity, flatness,
Surface roughness can not meet the required precision in above-mentioned datum clamp face and machining benchmark hole, it is necessary to heavy on numerically controlled processing equipment
Newly process die insert datum clamp face to be remake or datum hole;Die insert benchmark to be remake of reforming has three kinds of modes:First
It is to re-work out three vertical planes in direction of die insert to be remake to plant die insert benchmark mode to be remake of reforming;Second
Die insert benchmark mode to be remake of reforming is to re-work out die insert bottom surface to be remake, side vertical plane and a hole;
The third die insert benchmark mode to be remake of reforming is to re-work out die insert bottom surface to be remake as two apertures
Hole, described hole is the hole of accurate processing, such as pinhole or punching.
2nd, the die insert repaired by hand of recasting is treated before scanning:
(1) because mould is in debugging and production and application, repeatedly debugging modification, product modification, matching modification are also carried out,
Some after recasting die insert to experience repeatedly freeze, process after the process such as remitted its fury, cause die insert type face to be remake
And profile freezes the surface defects such as remnants, burr, pincers worker is needed to treat recasting die insert region of problems before scanning
Repaired by hand is carried out, the abrasive machine such as remnants, burr that freezes of die insert to be remake simply is polished removal, make mould to be remake
Tool insert surface levels off to fairing and smooths, it is ensured that cloud is put after scanning, and also fairing is smoothed, with ensure it is reverse after mould remake edge
The new process data type face fairing of block is smooth, continual curvature.
(2) there is the mass defects such as dark hole, sand holes in some die insert type faces to be remake, should be to blemish surface at
Reason, selection putty, resin etc. are easy to the material of filled-type face and easy processing, and the defective position in surface is filled and led up, and are used in combination
Sand paper is ground, and smooths processing region surface smoothing, it is ensured that cloud is put after scanning, and also fairing is smoothed, with waiting after ensureing inversely
The new process data type face fairing of recasting die insert is smoothed, continual curvature.
3rd, by reparation after die insert to be remake swept in ATOS equipment and on three coordinate measuring machine respectively
Retouch, form cloud data, as the foundation that the new process data of die insert to be remake is designed:
(1) be ensure scanning benchmark precision, by reparation after die insert remake be placed on workbench, and put
Die insert bottom surface to be remake is wiped clean clearly when putting, it is ensured that die insert soffit plane degree to be remake will reach 0.04;Treat
The type face of recasting die insert entity, structural plane, profile, pin-and-hole, screw hole carry out ATOS optical scanners;Treat recasting mould edge
During block domain type Surface scan, if punching technology content, should insert corresponding on the punching position of die insert to be remake
Pin, scans and together scans the pin of insertion when recasting die insert type face, to ensure the degree of accuracy of hole position.
(2) die insert to be remake is gone on three-coordinate measuring machine again in a manner described, measured hole side is ensured during measurement
Edge smooths impulse- free robustness, it is to avoid jagged interference effect certainty of measurement during the adapter dome contact testee of measuring machine;To protect
Two kinds of device measuring unifying datums of card, will utilize the benchmark of ATOS optical scanners when being measured on three coordinate measuring machine, measurement is straight
Repair cutting edge, die hole and aperture and hole position and the antirotation keys installation nest of pin-and-hole are installed;If die insert to be remake is wedge
Insert, that is, die insert to be remake is fixed on the Wedge mechanism of mould, for the installation pin-and-hole of die wedge insert to be remake
To be measured from insert bottom surface, it is to avoid the error that hole out of plumb is brought.
4th, after the end of scan, recasting die insert scanning result is treated in ATOS optical scanning device systems and is counted
Calculation obtains the tri patch cloud data of die insert to be remake;Mould to be remake is obtained in three coordinate measuring machine device systems
The deburring or flange cutting edge contour of insert, aperture and hole position cloud data.Judge that die insert scanning element cloud quality to be remake is closed
After lattice, die insert ATOS to be remake is scanned into cloud data and three coordinate scanning element cloud data investigations, obtain mould to be remake
The whole scanning data of insert, as the new process data design considerations of die insert to be remake.Die insert to be remake newly is processed
Design data work includes:Cloud data is scanned by the use of die insert ATOS to be remake and three coordinates scan cloud data as reason
By foundation, die insert cloud data to be remake is imported the CATIA software environments of the original process data of die insert to be remake
In, by scanning after die insert cloud data to be remake and original process data aligned in position, process points cloud grid data;It is inverse
To designing die insert datum level to be remake;Treating recasting die insert pincers worker repaired by hand region carries out transformation compensation, treats
Recasting die insert point cloud type face extends amplifies;Treat recasting die insert outline data, hole position, pore size data and extract optimization;
Form the novel entities process data of die insert to be remake.
Fig. 2 be it is of the present invention it is a kind of scan recasting the new process data of mold insert designs method in three coordinates survey
The schematic diagram of the cloud data of profile and hole obtained by amount machine measurement die insert to be remake, wherein a waits to remake for the present invention
The deburring of die insert or flange cutting edge contour;B is screw hole, the aperture and hole of column pin hole of present invention die insert to be remake
Position cloud data.
(1) synthesis result scanned according to die insert ATOS to be remake optical scanners and three coordinate measurements, judges to treat weight
Molding jig insert scanning element cloud quality.Judge that content includes:Die insert scanning element cloud type face to be remake whether have loss face,
Whether whether profile point cloud have that interruption is discontinuous, whether entire scan cloud data is complete, lack;Die insert scanning to be remake
Point cloud type face whether rimose defect;Whether die insert scanning cloud data to be remake repaired by hand area before scanning has not
Rule overlaps grid.
(2) judge after recasting die insert scanning element cloud is up-to-standard, proceed by die insert to be remake and newly process
Design data works.When the new process data of die insert of remaking is designed, first by scanning after die insert point cloud to be remake
Data are imported in the original process data environment of CATIA die inserts to be remake, with the original process data position of die insert to be remake
Alignment is put, that is, corresponds to position of the die insert to be remake in unitary mould structure;On the one hand, theory can be compared out to wait to remake
The deviation of the die insert to be remake in die insert process data and actual production, in the new process data of die insert to be remake
The compensation in major tasks region is considered during design, on the other hand, cloud data is scanned as foundation by the use of die insert to be remake,
The design of the new process data of die insert to be remake is carried out, die insert and the qualified production of debugging after being remake with strict guarantee
The uniformity of the die insert to be remake in use.
(3) using the mode process points cloud grid such as a point cloud desaturation, plug-hole, point cloud be fairing-optimized, and variance analysis is carried out.
A. a cloud information is checked, the points of single part, no more than 500,000, type face deviation is entered within 0.02mm
Row desaturation treatment." curvature segmentation " order is applied to extract die insert scanning element cloud feature to be remake in CATIA environment gentle
Region, the larger position of Curvature varying and R are filtered out, reapplying " point cloud desaturation " order carries out a cloud desaturation, and selection will
Data desaturation effectively reduces data volume to 20%, improves the accuracy of reference vector, reaches a cloud normal vector optimization, favorably
In guarantee surface accuracy.Fig. 3 be it is of the present invention it is a kind of scan recasting the new process data of mold insert designs method in treat
The schematic diagram of data before the surface curvature segmentation of recasting die insert scanning element cloud;Fig. 4 is a kind of scanning recasting of the present invention
After the signal of data after the surface curvature segmentation of recasting die insert scanning element cloud in the method for the new process data of mold insert designs
Figure;Fig. 5 is die insert to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data before scanning element cloud type face desaturation;Fig. 6 newly adds for a kind of scanning recasting mold insert designs of the present invention
Wait the schematic diagram of data after die insert scanning element cloud type face desaturation of remaking in the method for number evidence.
B. when die insert of remaking is scanned, it is necessary in scanning area spray developing agent, while scanning mould to be remake
Place reference point in tool insert type face region;Die insert type face to be remake is referenced the region a little blocked in cloud data with regard to shape
Into aperture, in the reflective position of developer, aperture is also formed in cloud data, cause the cloud data type face after scanning there are many places
Small opening, uses plug-hole order in ATOS optical scanning device systems, many places small opening and screw hole and pin-and-hole is filled and led up, during plug-hole
Ensure the fairness of a cloud, it is ensured that with border joint continual curvature.Fig. 7 is a kind of scanning recasting mould of the present invention
Insert designs the schematic diagram of data before die insert scanning element cloud plug-hole to be remake and fairing processing in the method for new process data;
Fig. 8 is die insert scanning to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram of data after point cloud plug-hole and fairing processing.
C. after the scanning element cloud of recasting die insert is by " curvature segmentation " and " put cloud desaturation ", tackle cloud data and enter
Row is checked, it is ensured that the normal orientation of curved surface is consistent with the scanning direction of point cloud, it is ensured that cloud data and original scan after treatment
The overall trend of point cloud is consistent, and the curved surface with the original process data of die insert to be remake is reference, scans mould edge to be remake
The point cloud that block is obtained is measurement object, and treating recasting die insert theory state and produce reality state carries out variance analysis,
Variance analysis cloud atlas is generated in CATIA environment, deviation is only applicable to curved surface normal direction;In variance analysis, type face tolerance is arranged on ±
1mm, the positive direction deviation in type face is set to tetra- sections of 0mm, 0.25mm, 0.5mm, 0.75mm, 1mm, and the negative direction deviation in type face sets
Four sections of 0mm, -0.25mm, -0.5mm, -0.75mm, -1mm is set to, Fig. 9 is a kind of scanning recasting die insert of the present invention
Die insert scanning element cloud to be remake contrasts the variance analysis cloud atlas for obtaining with gross data in designing the method for new process data.
(4) benchmark is scanned according to die insert to be remake, it is reverse using " point cloud flyback type face " order in CATIA environment
Die insert processing datum to be remake is designed, die insert structure reference dimension to be remake will be scanned and optimized treatment, protected
The perpendicularity of all directions is demonstrate,proved, using die insert processing datum information to be remake after reverse, die insert to be remake is set up and is added
The work frame of reference.Figure 10 is reverse in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The processing datum of design recasting die insert and the schematic diagram of machining benchmark coordinate system, wherein, a is to reverse-engineer mould to be remake
Tool insert X-direction processing datum;B is to reverse-engineer die insert Y-direction processing datum to be remake;C is treated for reverse engineer
Recasting die insert Z-direction processing datum;D is to reverse-engineer the machining benchmark coordinate that die insert to be remake is re-established
System.
(5) use requirement is disposably reached in order to ensure die insert to be remake, waits to remake being designed according to scan data
During the new process data of die insert, on the one hand to consider to carry out transformation compensation to pincers worker repaired by hand region, it is on the other hand right
Die insert abrasion to be remake carries out dosage compensation than more serious region;Put that cloud surface smoothing is smooth, continual curvature after scanning,
As point cloud quality can meet type face quality requirement, can meet programming process requirements, can directly be processed using point cloud;It is right
When a cloud quality can not meet above-mentioned type face quality requirement, when the new process data of die insert of remaking is designed, will treat
Recasting die insert scanning element cloud, using die insert type face to be remake is reverse-engineered in CATIA, is used as foundation
The gap of die insert dough sheet to be remake exists less than or equal to 0.03mm, type face allowance control after whole of " JION " order inspection is reverse
When within ± 0.02mm, type face quality requirement is as met;To consider that not big enough point cloud supplement type face extends to amplify, typically
Stretch out 15~20mm by theoretical boundary, to ensure that processing is complete, the new face for ultimately forming die insert remake processes
Data.Figure 11 is mould edge to be remake in a kind of method for scanning the recasting new process data of mold insert designs of the present invention
The schematic diagram that the type face of block stretches out by theoretical boundary, wherein, a is the theoretical side that die insert to be remake needs processing type face
Boundary;B is the type face that die insert to be remake stretches out by theoretical boundary;Structure beyond the benchmark of c die inserts to be remake
Type face.
(6) when the new process data of die insert of remaking is designed, according to cloud data to profile, hole position, hole in CATIA
Footpath data are extracted.For having deburring, flange on the die insert to be remake that scans and rushing circular hole or irregularly-shaped hole cutting edge, repair
Side, flange profile connect into line by scanning element cloud, generate contour line, and light compliance to contour line carries out transformation and optimization treatment;
Original theory numerical value is pressed in punching aperture, and hole position is optimized to one decimal place by scanning element cloud positional precision;Screw hole belonged to
Hole, scan position and theoretical position deviation are within ± 0.3mm, you can utilize theoretical position;To ensure installation accuracy, wait to remake
The installation pin-and-hole of die insert is all using the modification for expanding or changing position, and it is latter that pin-and-hole positional precision is optimized to decimal point
Position, ultimately forms the new contour machining data of die insert to be remake.
(7) according to the new face of die insert to be remake, the new contour machining data, the knot beyond benchmark for reverse-engineering completion
Structure face is re-established in the three-dimensional geometry data of the new process data of die insert to be remake by theoretical X-Y scheme paper, final design
Complete die insert novel entities process data to be remake for program processing.Figure 12 is a kind of scanning recasting mould of the present invention
The new face of die insert to be remake, new contour machining data are reverse-engineered in the method for the tool insert new process data of design, its
In, a is after the profile after recasting mold insert designs optimization;B is after the point cloud type face after recasting mold insert designs optimization;c
For after recasting die insert in design optimization after point cloud type face on the basis of the type face that extends;D is the spiral shell of die insert to be remake
Nail and pin-and-hole hole position.Figure 13 be it is of the present invention it is a kind of scan recasting the new process data of mold insert designs method in treat
The novel entities process data that the final design of die insert of remaking is completed.
Claims (5)
1. it is a kind of scan recasting the new process data of mold insert designs method, it is characterised in that:Comprise the following steps:
The scanning benchmark and machining benchmark of die insert to be remake are determined before step one, scanning;
Recasting die insert repaired by hand is treated before step 2, scanning;
Step 3, by reparation after die insert to be remake respectively on ATOS optical scanning devices and three coordinate measuring machine is enterprising
Row scanning, forms cloud data, used as the foundation that die insert process data to be remake is designed;
After step 4, the end of scan, scanning result carried out in ATOS optical scanning device systems be calculated mould to be remake
Has the tri patch cloud data of insert;Die insert deburring to be remake or flange are obtained in three coordinate measuring machine device systems
Cutting edge contour, aperture and hole position cloud data;Judge scanning element cloud it is up-to-standard after, by die insert ATOS remake scanning with
The cloud data superposition of three coordinates scanning, obtains the whole scanning data of die insert to be remake, as die insert to be remake
New process data design considerations;The new process data design work of die insert to be remake includes:Using die insert to be remake
ATOS scans cloud data and three coordinates scanning cloud data as theoretical foundation, and die insert cloud data to be remake is imported
In the CATIA software environments of the original process data where die insert to be remake, by scanning after die insert point to be remake
Cloud data and original process data aligned in position, process points cloud grid data;Reverse-engineer die insert datum level to be remake;It is right
Die insert pincers worker repaired by hand region to be remake carries out transformation compensation, treats the extension amplification of recasting die insert point cloud type face;
Treat recasting die insert outline data, hole position, pore size data and extract optimization;Form the novel entities processing of die insert to be remake
Data.
2. it is according to claim 1 it is a kind of scan recasting the new process data of mold insert designs method, it is characterised in that
The detailed process of step one is as follows:
(1) machining benchmark of die insert to be remake uses die insert to be remake in base plate or the mounting structure face of installing plate,
The mounting structure face of die insert to be remake refers to die insert to be remake in base plate or three mutually perpendicular directions of installing plate
Positioning, mounting plane, the datum clamp face for limiting the free degree of the die insert to be remake on base plate or installing plate;Will
Die insert to be remake is pulled down from mould, if the original machining benchmark of die insert to be remake is mounting structure face, checks peace
The flatness and perpendicularity and surface roughness in assembling structure face, flatness tolerance band tolerance value are controlled in 0.03mm, and perpendicularity is public
Difference band tolerance value is controlled in 0.1mm, and surface roughness reaches 1.6, you can be considered as die insert mounting structure face to be remake complete
It is good, it is possible to use die insert original mounting surface benchmark remake as die insert remake scanning benchmark with process base
It is accurate;
(2) the mounting surface machining benchmark for being functionally equivalent to die insert to be remake in the machining benchmark hole of die insert to be remake,
Refer to the hole that benchmark is elected to be in hole base system of fits, the lower deviation in hole is zero, if the machining benchmark of die insert to be remake is
Two datum holes of at least same rectilinear direction, check that datum hole surface roughness will reach 0.8, squareness tolerance band tolerance value
In 0.1mm, hole position allowance control is considered as intact within ± 0.02mm, that is, can be used to detect and processes for control;
(3) when die insert original structure datum level to be remake or datum hole are damaged or irregular, perpendicularity, flatness, surface
Roughness can not meet the required precision of above-mentioned datum clamp face and machining benchmark hole, it is necessary to add again on numerically controlled processing equipment
Work die insert datum clamp face to be remake or datum hole;Die insert benchmark to be remake of reforming has three kinds of modes:The first weight
Die insert benchmark mode to be remake is to re-work out three vertical planes in direction of die insert to be remake;Reform for second
Die insert benchmark mode to be remake is to re-work out die insert bottom surface to be remake, side vertical plane and a hole;3rd
It is the hole for re-working out die insert bottom surface to be remake as two apertures to plant die insert benchmark mode to be remake of reforming,
Described hole is the hole of accurate processing, such as pinhole or punching.
3. it is according to claim 1 it is a kind of scan recasting the new process data of mold insert designs method, it is characterised in that
The detailed process of step 2 is as follows:
(1) because mould is in debugging and production and application, repeatedly debugging modification, product modification, matching modification are also carried out, some
After recasting die insert to experience repeatedly freeze, process after the process such as remitted its fury, cause die insert type face to be remake and wheel
Exterior feature is freezed the surface defects such as remnants, burr, and needing pincers worker to treat recasting die insert region of problems before scanning is carried out
Repaired by hand, the abrasive machine such as remnants, burr that freezes of die insert to be remake simply is polished removal, inlays mould to be remake
Block surface levels off to fairing and smooths, it is ensured that cloud is put after scanning, and also fairing is smoothed, with ensure it is reverse after die insert to be remake it is new
The face fairing of process data type is smooth, continual curvature;
(2) there is the mass defects such as dark hole, sand holes in some die insert type faces to be remake, and blemish surface should be processed, and select
The material that putty, resin etc. are easy to filled-type face and easy processing is selected, the defective position in surface is filled and led up, and entered with sand paper
Go and grind, smooth processing region surface smoothing, it is ensured that cloud is put after scanning, and also fairing is smoothed, with the mould to be remake after ensureing inversely
The new process data type face fairing of tool insert is smoothed, continual curvature.
4. it is according to claim 1 it is a kind of scan recasting the new process data of mold insert designs method, it is characterised in that
The detailed process of step 3 is as follows:
(1) be the precision that ensures scanning benchmark, by reparation after die insert to be remake be placed on workbench, and when putting
Die insert bottom surface to be remake is wiped clean clearly, it is ensured that die insert soffit plane degree to be remake will reach 0.04;Treat recasting
The type face of die insert entity, structural plane, profile, pin-and-hole, screw hole carry out ATOS optical scanners;Treat recasting die insert area
During the type Surface scan of domain, if punching technology content, corresponding pin should be inserted on the punching position of die insert to be remake,
Scan and together scan the pin of insertion when recasting die insert type face, to ensure the degree of accuracy of hole position;
(2) die insert to be remake is gone on three-coordinate measuring machine again in a manner described, ensures that tested bore edges are put down during measurement
Sliding impulse- free robustness, it is to avoid jagged interference effect certainty of measurement during the adapter dome contact testee of measuring machine;To ensure two
Device measuring unifying datum is planted, the benchmark of ATOS optical scanners is utilized when being measured on three coordinate measuring machine, measurement directly repair sword
Mouth, the aperture of die hole and installation pin-and-hole and hole position and antirotation keys install nest;If die insert to be remake is wedge insert,
Die insert i.e. to be remake is fixed on the Wedge mechanism of mould, and the installation pin-and-hole for die wedge insert to be remake will be from edge
Block bottom surface measures, it is to avoid the error that hole out of plumb is brought.
5. it is according to claim 1 it is a kind of scan recasting the new process data of mold insert designs method, it is characterised in that
The detailed process of step 4 is as follows:
(1) synthesis result scanned according to die insert ATOS to be remake optical scanners and three coordinate measurements, judges mould to be remake
Tool insert scanning element cloud quality;Judge that content includes:Whether die insert scanning element cloud type face to be remake has the face of loss, profile
Whether whether point cloud have that interruption is discontinuous, whether entire scan cloud data is complete, lack;Die insert scanning element cloud to be remake
Type face whether rimose defect;Whether die insert scanning cloud data to be remake repaired by hand area before scanning has irregularly
Overlap grid;
(2) judge after recasting die insert scanning element cloud is up-to-standard, proceed by the new process data of die insert to be remake
Design work;When the new process data of die insert of remaking is designed, first by scanning after die insert cloud data to be remake
Import in the original process data environment of CATIA die inserts to be remake, with the original process data position pair of die insert to be remake
Together, that is, position of the die insert to be remake in unitary mould structure is corresponded to;On the one hand, theory mould to be remake can be compared out
The deviation of the die insert to be remake in insert process data and actual production, in the new process data design of die insert to be remake
When consider the compensation in major tasks regions, on the other hand, by the use of die insert remake scanning cloud data as foundation, carry out
The design of the new process data of die insert to be remake, die insert and the qualified production and application of debugging after being remake with strict guarantee
In die insert to be remake uniformity;
(3) using the mode process points cloud grid such as a point cloud desaturation, plug-hole, point cloud be fairing-optimized, and variance analysis is carried out, specific mistake
Journey is as follows:
A. a cloud information is checked, the points of single part, no more than 500,000, type face deviation carries out desaturation within 0.02mm
Treatment;The gentle region of die insert scanning element cloud feature to be remake is extracted using " curvature segmentation " order in CATIA environment,
The larger position of Curvature varying and R are filtered out, reapplying " desaturation of point cloud " order carries out a cloud desaturation, selects data desaturation
To 20%, data volume is effectively reduced, improve the accuracy of reference vector, reach a cloud normal vector optimization, advantageously ensure that song
Face precision;
B. when die insert of remaking is scanned, it is necessary in scanning area spray developing agent, while being inlayed mould remake is being scanned
Place reference point in block type face region;Die insert type face to be remake is referenced the region a little blocked and just forms small in cloud data
Hole, in the reflective position of developer, also forms aperture in cloud data, cause the cloud data type face after scanning to have many places to leak
Hole, uses plug-hole order in ATOS optical scanning device systems, and many places small opening and screw and pin-and-hole are filled and led up, and to be protected during plug-hole
The fairness of card point cloud, and defective position on a cloud is processed;
C. after the scanning element cloud of recasting die insert is by " curvature segmentation " and " put cloud desaturation ", cloud data should be examined
Look into, it is ensured that the normal orientation of curved surface is consistent with the scanning direction of point cloud, it is ensured that cloud data and original scan point cloud after treatment
Overall trend it is consistent;Curved surface with the original process data of die insert to be remake is reference, scans die insert to be remake and obtains
The point cloud for arriving is measurement object, and treating recasting die insert theory state and produce reality state carries out variance analysis, in CATIA
Variance analysis cloud atlas is generated in environment, deviation is only applicable to curved surface normal direction;
(4) benchmark is scanned according to die insert to be remake, is reverse-engineered using " point cloud flyback type face " order in CATIA environment
Die insert processing datum to be remake, will scan die insert structure reference dimension to be remake and optimizes treatment, it is ensured that each
The perpendicularity in direction, using die insert processing datum information remake after reverse, sets up die insert to be remake and processes base
Conventional coordinates;
(5) use requirement is disposably reached in order to ensure die insert to be remake, mould to be remake is being designed according to scan data
During the new process data of insert, on the one hand to consider to carry out transformation compensation to pincers worker repaired by hand region, on the other hand to treat weight
The abrasion of molding jig insert carries out dosage compensation than more serious region;Put that cloud surface smoothing is smooth, continual curvature after scanning, as
Point cloud quality can meet type face quality requirement, can meet programming process requirements, can directly be processed using point cloud;For point
When cloud quality can not meet above-mentioned type face quality requirement, carry out when the new process data of die insert of remaking is designed, to wait to remake
Die insert scanning element cloud, using die insert type face to be remake is reverse-engineered in CATIA, is ordered as foundation using " JION "
The gap of die insert dough sheet to be remake is less than or equal to 0.03mm, type face allowance control in ± 0.02mm after whole of order inspection is reverse
Within when, as meet type face quality requirement;To consider that not big enough point cloud supplement type face extends to amplify, it is general by theoretical side
Boundary stretches out 15~20mm, to ensure that processing is complete, ultimately forms the new face process data of die insert to be remake;
(6) when the new process data of die insert of remaking is designed, according to cloud data to profile, hole position, aperture number in CATIA
According to being extracted;For having deburring, flange on the die insert to be remake that scans and rushing circular hole or irregularly-shaped hole cutting edge, deburring,
Flange profile connects into line by scanning element cloud, generates contour line, and light compliance to contour line carries out transformation and optimization treatment;Punching
Original theory numerical value is pressed in aperture, and hole position is optimized to one decimal place by scanning element cloud positional precision;Screw hole belongs to via, sweeps
Position and theoretical position deviation are retouched within ± 0.3mm, you can utilize theoretical position;To ensure installation accuracy, mould to be remake
All using the modification for expanding or changing position, pin-and-hole positional precision is optimized to one decimal place to the installation pin-and-hole of insert,
Ultimately form the new contour machining data of die insert to be remake;
(7) according to the new face of die insert to be remake, the new contour machining data, the structural plane beyond benchmark for reverse-engineering completion
Re-established in the three-dimensional geometry data of the new process data of die insert to be remake by theoretical X-Y scheme paper, final design is complete
It is used to program into die insert novel entities process data to be remake and processes.
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CN108664750A (en) * | 2018-05-22 | 2018-10-16 | 宿迁学院 | A kind of die face defect digitlization fast repairing method based on reverse-engineering |
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CN117313350A (en) * | 2023-09-23 | 2023-12-29 | 裕克施乐塑料制品(太仓)有限公司 | Precise trimming deformation processing method for die profile |
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