CN106441963B - The X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool - Google Patents
The X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool Download PDFInfo
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- CN106441963B CN106441963B CN201610814438.2A CN201610814438A CN106441963B CN 106441963 B CN106441963 B CN 106441963B CN 201610814438 A CN201610814438 A CN 201610814438A CN 106441963 B CN106441963 B CN 106441963B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
The present invention relates to a kind of X-shaped aviation thin-walled standard specimens of comprehensive detection Precision of NC Machine Tool, including X-shaped aviation thin-walled standard specimen, support element, the X-shaped aviation thin-walled standard specimen is composed of " X " the type curved-surface piece and rectangular susceptor of non-homogeneous walled thickness, " X " the type curved-surface piece of the non-homogeneous walled thickness is made of upper and lower two parts, lower part is crossed one another by the petal-like curve in two planes in the projection of rectangular susceptor plane, and is opened and closed angle conversion modalities with being formed by bending four in intersection's conversion variation；The curved surface with symmetrical protrusion and recess that upper part is formed by petal-shaped curve and circular sweep, by the machining accuracy for detecting X-shaped aviation thin-walled standard specimen, judge multi-shaft interlocked precision, the dynamic rate characteristic of lathe, and reflects processing characteristics of the numerically-controlled machine tool to be processed for aviation thin-walled parts.
Description
Technical field
The present invention relates to a kind of test specimen of detection Precision of NC Machine Tool, especially a kind of comprehensive detection Precision of NC Machine Tool boat
Empty thin-walled standard specimen.
Background technology
There are many kinds can be divided into the direct method of measurement and the indirect method of measurement for detection numerical control machine finish method, directly surveys
Amount is to the machining accuracy of lathe directly measure the error of lathe using various measurement accuracy tools；The indirect method of measurement
Substantially it is exactly that lathe is allowed to be processed the mechanical test specimen of standard, whether standard specimen is reached by the machining accuracy of standard specimen
Machining accuracy standard infer whether lathe to be processed reaches required precision, and compared according to specific machining accuracy specific
Machining accuracy standard require judge the specific precision of lathe whether reach standard requirement.Now both at home and abroad for standard specimen
Definition it is different, quote the U.S. add connection database definition, standard specimen is exactly material standard, it is the another kind of standard
Existence form, it is combined with Teletext Standard and constitutes complete standard type.It is most widely used in numerous detection test specimens to be
ISO international standard test specimens.The standard testing part is chiefly used in the detection of three axis machine tool accuracies, can preferably examine the dynamic of lathe translation shaft
State precision, but the dynamic accuracy of gang tool rotation axis can not be evaluated.Therefore, the technical staff of various countries proposes new one after another
Test specimen is detected, the deficiency of the standard specimen is compensated for a certain extent, respectively has spy in terms of gang tool checking of dynamic accuracy
Point.
Current such standard specimen for detecting numerically-controlled machine tool there are many kinds of, be commonly used in the world
Standard specimen be：
Test specimen 1.ISO international standard test specimens：The ISO/TC39 machine tool technologies committee has been formulated in 1988 in processing
The draft internation standard ISO10791 of the heart, wherein the 7th part is finishing part precision test stone, for evaluating cutting for lathe
Cut precision.ISO10791-7 provides two kinds of test specimens of end mill test specimen and contour machining test specimen, and wherein end mill test specimen is for examining essence
The flatness on institute's milling surface when end face milling, does not define specific test specimen shape.
Test specimen 2.NASA979 series standard test specimens：US National Aeronautics and Space Administration (NASA) formulated " general in 1969
Cutting test --- NAS series metals cutting equipment specification ", which contains two test specimens altogether.Wherein, NASA979 test specimens
Mainly for detection of the geometric accuracy and positional precision of three axis lathe translation shafts；NAS979 frustum of a cone test specimens, are mainly used for multiaxis
Linkage machine tool rotation axis accuracy detection.
3. serpentine test specimen of test specimen：Chengdu Aircraft Industry group company invented serpentine detection test specimen, serpentine test specimen and its
Test method is that Chengdu Airplane Industry (Group) Corp., Ltd. invents for five-axis linkage machine tools accuracy test, has been obtained
Obtain Sino-U.S. patent of invention.Carrying out the research of serpentine test specimen helps to understand and grasp the large complicated integral structure component of aircraft
Multi-shaft interlocked high-speed cutting processing technique and its key technology, the technical issues of finding lathe, to promote domestic five axis connection
The manufacture level of motivation bed.The main body of serpentine test specimen is the equal thickness edge strip that the distortion curved surface of a S-shaped trend is formed, edge
The angle consecutive variations of item and coordinate plane, curve form are complicated.Serpentine test specimen has thin-walled feature, it navigates from typical
Hollow structure, machining status can also reflect the characteristics such as the rigidity of lathe, vibration.
The major defect of the prior art is in summary：
1. the geometric properties and surface-type feature of existing several standard specimens are too single, each test specimen is all to possess alone certainly
Oneself geometrical feature is unable to the most geometric properties of general performance.
2. current several standard specimens not fully have whole features of present aviation thin-walled parts, lack to aviation
The alterable thin-walled of thin-walled parts thin-walled, regularity, cantilevered feature and multiple theoretical researches for being opened and closed the geometric properties such as angles conversion；
3. lacking fully in terms of part geometry construction, numerically-controlled machine tool linkage performance, dynamic rate and processing complexity
Relevant theoretical research.
For disadvantages described above, therefore, summarized from various standard specimens generally used now herein to detection lathe property production
The geometric properties and surface-type feature of raw great function, consider the feature of a large amount of aviation thin-walled parts and feature can embody
Machine tool accuracy characteristic, the lathe property that machine tooling standard specimen to be processed can be judged, the precision to detecting lathe will
Play theoretical research definitely.
Invention content
The present invention is to provide for a kind of X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool, for examining
The precision for surveying numerically-controlled machine tool, can directly detect " X " part walled thickness, according to edge strip top and the bottom, the depth information of different zones,
Analyze and determine five-coordinate linkage precision；Can also by the cutter path of detection " X " part base plane and edge strip binding site with
And the fairing situation in " X " type face, analyze and determine lathe RTCP functions whether meet the requirements, the correctness of post processing program and
The spatial movement precision of lathe.
To achieve the above object, the technical scheme is that：A kind of X-shaped aviation of comprehensive detection Precision of NC Machine Tool
Thin-walled standard specimen, including X-shaped aviation thin-walled standard specimen, support element, it is characterised in that：The X-shaped aviation thin-walled mark
Quasi- test specimen is composed of " X " the type curved-surface piece and rectangular susceptor of non-homogeneous walled thickness, " X " of the non-homogeneous walled thickness
Type curved-surface piece is made of upper and lower two parts, lower part by the petal-like curve in two planes rectangular susceptor plane projection
It crosses one another, and angle conversion modalities is opened and closed with being formed by bending four in intersection's conversion variation；Upper part is by petal-shaped curve
The curved surface with symmetrical protrusion and recess formed with circular sweep, by the processing essence for detecting X-shaped aviation thin-walled standard specimen
Degree, judges multi-shaft interlocked precision, the dynamic rate characteristic of lathe, and reflect numerically-controlled machine tool to be processed for aviation thin-walled zero
The processing characteristics of part.
The support element is placed in X-shaped aviation thin-walled standard specimen in the following, adding for X-shaped aviation thin-walled standard specimen
It plays a supporting role to test specimen during work, prevents the deformation that test specimen is excessive.
Four opening and closing corner shapes of " X " type curved-surface piece lower part of the non-homogeneous walled thickness are examined by being opened and closed angle conversion
Test the multi-shaft interlocked ability of lathe to be processed.
Coaxial round platform and circular hole are processed at the top of " X " type curved-surface piece of the non-homogeneous walled thickness, passes through detection
The concentricity of round platform and circular hole investigates the geometric accuracy and positional precision of the translation shaft of numerically-controlled machine tool.
The end surface up and down of " X " type curved-surface piece of the non-homogeneous walled thickness exchanges processing to test determining for numerically-controlled machine tool
Position precision.
The beneficial effects of the invention are as follows：
The major technical fields of the present invention are the key components such as space flight and aviation, automobile, ship and nuclear power in multi items, small lot
Etc. processed and applieds.The invention is composed of non-homogeneous walled thickness " X " type curved-surface piece and rectangular susceptor, non-homogeneous thin-walled
" X " the type curved-surface piece of thickness is made of upper and lower two parts, lower part by two planes petal-like curve in base plane
Projection cross one another, and with being converted at four opening and closing angles of the open and close corner shape that is formed by bending of intersection's conversion variation；Top
Point it is then that there is symmetrical protrusion and recessed deep curved surface by what petal-shaped curve and circular sweep were formed, it can be for detecting numerically-controlled machine tool
Precision." X " part walled thickness can be directly detected, according to edge strip top and the bottom, the depth information of different zones, analyzes and determines five
Coordinate linkage precision；The cutter path and " X " type face of detection " X " part base plane and edge strip binding site can also be passed through
Fairing situation analyzes and determines whether lathe RTCP functions meet the requirements, the space of the correctness of post processing program and lathe
Kinematic accuracy.
The present invention is the set feature and surface-type feature of several working standard test specimens more than deep summary, is commonly used from a large amount of
The geometric properties of aviation thin-walled parts concluded with surface-type feature, carried out design and construction again, just had X-shaped new
Type aviation thin-walled standard specimen can preferably judge lathe from the machining accuracy of the novel aviation thin-walled standard specimen of X-shaped
Multi-shaft interlocked precision, dynamic rate characteristic can reflect processing characteristics of the numerically-controlled machine tool to be processed for aviation thin-walled parts.
Description of the drawings
Fig. 1 is the test specimen A three-dimensional axonometric drawings of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Fig. 2 is the three-dimensional axonometric drawing of the test specimen B of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Fig. 3 is the test specimen A vertical views of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Fig. 4 is the test specimen A upward views of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Fig. 5 is tri- sectional views of test specimen A of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Wherein：(a) it is 84 ° of angle of releases；(b) it is 96 ° and closes angle, is (c) 84 ° of angle of releases；
Fig. 6 is the test specimen A left views of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Fig. 7 is the test specimen A right views of the X-shaped aviation thin-walled standard series test specimen of the present invention；
Fig. 8 is the upward view of the test specimen B of the X-shaped aviation thin-walled standard series test specimen of the present invention.
Specific implementation mode
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 8, the X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool of the invention, packet
Include X-shaped aviation thin-walled standard specimen A, support element B.X-shaped aviation thin-walled standard specimen A by non-homogeneous walled thickness " X "
Type curved-surface piece and rectangular susceptor are composed, and " X " the type curved-surface piece of non-homogeneous walled thickness is made of upper and lower two parts, lower part
It is crossed one another in the projection of rectangular susceptor plane by the petal-like curve in two planes, and changed with being converted in intersection
It is formed by bending four opening and closing corner shapes；The song with symmetrical protrusion and recess that upper part is formed by petal-shaped curve and circular sweep
Face.
Support element B is placed in X-shaped aviation thin-walled standard specimen in the following, being used for the processing of X-shaped aviation thin-walled standard specimen
It plays a supporting role in the process to test specimen, prevents the deformation that test specimen is excessive." X " type curved-surface piece lower part of non-homogeneous walled thickness
Four opening and closing corner shapes test the multi-shaft interlocked ability of lathe to be processed by being opened and closed angle conversion.Non-homogeneous walled thickness
Coaxial round platform and circular hole are processed at the top of " X " type curved-surface piece, by detecting the concentricity of round platform and circular hole, investigate numerical control machine
The geometric accuracy and positional precision of the translation shaft of bed.
The end surface up and down of " X " type curved-surface piece of non-homogeneous walled thickness exchanges processing to test the positioning accurate of numerically-controlled machine tool
Degree.
First, X-shaped aviation thin-walled standard specimen A of the invention is main test specimen, and the possessed geometry of test specimen A itself is special
Sign is only with surface-type feature and carries out precision and dynamic rate detection by machine tooling to be processed.Secondly, support element B is standard
Test specimen is assisted, only plays a supporting role to test specimen A in the process of test specimen A, prevents test specimen A from excessive deformation occur.
Test specimen A is divided into the faces a and the faces b when processing, and the faces a are crowning, and the faces b are concave face, and the faces b of first machining blanks wait for that the faces b add
Work finishes, and test specimen A is overturn, and support element B is put into inside test specimen A, repositioned, clamped to test specimen A, to test specimen
The faces a of A are processed.After processing is completed by test specimen A, accuracy detection is carried out, processing machine is treated by the accuracy detection to test specimen A
The characteristics such as precision, multi-shaft interlocked ability and the dynamic rate of bed are analysed scientifically.
The faces a of test specimen A are divided into as upper layer and lower layer, and upper layer is complicated processing region, circle are constructed in upper plane, in lower layer
An X-shaped second order spline curve is built in upper and lower two planes by upper and lower two spline curve construction ruled surfaces then to exist
Curve in upper in two planes carries out the lower layer that three-dimensional sampling can construct the faces a of threedimensional model, the geometry of the faces a lower layer
Feature just will appear opening and closing angle, the conversion of opening and closing angle, the variation of twist angle and curved surface normal direction curvature.
The faces a of test specimen A form the uniform thin-walled feature in part with the faces b on upper layer, are formed between lower layer, lower layer and upper layer
The thin-walled feature of non-uniform change.The thin-walled feature of standard specimen and the thin-walled feature of non-uniform change add by lathe to be processed
Work can detect the multi-shaft interlocked ability and dynamic rate of lathe.
As shown in Figure 1, test specimen A is built between four planes in modeling process, formed between four planes,
In, it is three layers lower, upper layer feature is mainly round platform, plane, circular hole and complicated processing curved surface, and middle level features are predominantly opened and closed angle conversion
Feature, twist angle and normal plane curvature feature, lower layer are pedestal.There is the concentricity of round platform and circular hole on the upper layer of test specimen A, investigates
The geometric accuracy and positional precision of translation shaft.
As shown in Fig. 2, the present invention breaks through the present situation of the previous single test specimen of standard specimen, X-shaped it can be seen
Novel aviation thin-walled standard series test specimen includes that the comprehensive of test specimen A and support element B uses.
As shown in figure 3, the faces a of X-shaped test specimen A.As shown in figure 4, the faces b of X-shaped test specimen A, X-shaped aviation thin-walled standard
There is a and changes face processing with the faces b in serial test specimen in the processing through lathe to be processed, test the positioning accuracy of lathe to be processed emphatically.
As shown in figure 5, in X-shaped test specimen A around the middle converting characteristic for forming four opening and closing angles, the conversion test of opening and closing angle
The translation shaft of the lathe to be processed and linkage precision of rotation axis, the tracking error of servo-drive system and lathe pivot angle ability.And from
The uniformity variation of the thin-walled feature, thin-walled non-uniform change and thin-walled of test specimen A, this spy are found out in Fig. 5 (a), 5 (b), 5 (c)
Sign tests emphatically the dynamic rate and rigidity vibration error of lathe.
The scheme geometric properties and machine to be processed that table 1 is the novel aviation thin-walled standard series test specimen A of patent X-shaped of the present invention
The precision mapping relations of bed.
The precision mapping relations of table 1 scheme geometric properties and lathe to be processed
Claims (5)
1. a kind of X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool, including the examination of X-shaped aviation thin-walled standard
Part, support element, it is characterised in that：The X-shaped aviation thin-walled standard specimen by non-homogeneous walled thickness " X " type curved-surface piece and
Rectangular susceptor is composed, and " X " the type curved-surface piece of the non-homogeneous walled thickness is made of upper and lower two parts, and lower part is by two
The petal-like curve of a plane crosses one another in the projection of rectangular susceptor plane, and is bent with variation is converted in intersection
Form four opening and closing angle conversion modalities；The song with symmetrical protrusion and recess that upper part is formed by petal-shaped curve and circular sweep
Face judges that the multi-shaft interlocked precision of lathe, dynamic rate are special by detecting the machining accuracy of X-shaped aviation thin-walled standard specimen
Property, and reflect processing characteristics of the numerically-controlled machine tool to be processed for aviation thin-walled parts.
2. the X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool according to claim 1, feature exist
In：The support element is placed in X-shaped aviation thin-walled standard specimen in the following, for the processed of X-shaped aviation thin-walled standard specimen
It plays a supporting role to test specimen in journey, prevents the deformation that test specimen is excessive.
3. the X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool according to claim 1, feature exist
In：Four opening and closing angle conversion modalities of " X " type curved-surface piece lower part of the non-homogeneous walled thickness are examined by being opened and closed angle conversion
Test the multi-shaft interlocked ability of lathe to be processed.
4. the X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool according to claim 1, feature exist
In：Process coaxial round platform and circular hole at the top of " X " type curved-surface piece of the non-homogeneous walled thickness, by detect round platform with
The concentricity of circular hole investigates the geometric accuracy and positional precision of the translation shaft of numerically-controlled machine tool.
5. the X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool according to claim 1, feature exist
In：The end surface up and down of " X " type curved-surface piece of the non-homogeneous walled thickness exchanges processing to test the positioning accurate of numerically-controlled machine tool
Degree.
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| CN201610814438.2A CN106441963B (en) | 2016-09-09 | 2016-09-09 | The X-shaped aviation thin-walled standard specimen of comprehensive detection Precision of NC Machine Tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109254561B (en) * | 2018-08-01 | 2021-02-26 | 成都飞机工业（集团）有限责任公司 | Testing device and testing method for testing post-processing part |
| CN110370084B (en) * | 2019-07-18 | 2021-02-05 | 珠海艾诚精密模具有限公司 | CNC (computer numerical control) three-axis linkage precision detection method |
| CN111266928B (en) * | 2020-03-16 | 2021-09-21 | 东华大学 | Test piece for detecting machine tool precision and thin-wall part machining capacity and detection method |
| CN113432503B (en) * | 2021-06-07 | 2024-03-08 | 乔锋智能装备股份有限公司 | Comprehensive detection piece and detection method for CNC machining center machine tool machined part |
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| CN100468038C (en) * | 2007-01-16 | 2009-03-11 | 成都飞机工业（集团）有限责任公司 | S-shaped test piece for integrated detecting precision of numerical control milling machine and its detecting method |
| CN102744450B (en) * | 2012-07-30 | 2014-06-18 | 沈阳机床（集团）设计研究院有限公司 | Test member for testing cutting capacity of machine tool and application thereof |
| CN105108580B (en) * | 2015-08-27 | 2017-09-26 | 电子科技大学 | Five-axle number control machine tool is opened and closed angular zone working ability detection method |
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