CN100383689C - Method of inscribed circle for testing synthesis precision of numerically controlled machine tool - Google Patents
Method of inscribed circle for testing synthesis precision of numerically controlled machine tool Download PDFInfo
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- CN100383689C CN100383689C CNB2005100401953A CN200510040195A CN100383689C CN 100383689 C CN100383689 C CN 100383689C CN B2005100401953 A CNB2005100401953 A CN B2005100401953A CN 200510040195 A CN200510040195 A CN 200510040195A CN 100383689 C CN100383689 C CN 100383689C
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- regular polygon
- inscribed circle
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- controlled machine
- polygon body
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Abstract
The present invention discloses an inscribed circle testing method for the comprehensive accuracy of a numerical control machine tool, which comprises the following steps: firstly, a regular polygon body is processed on an experiment stock by using an interpolation method; then, an inscribed circle body which is in tangency to the regular polygon body is processed, wherein the nominal size of the inscribed circle body is consistent with the size of an opposite side of the regular polygon body; the comprehensive accuracy of a machine tool can be obtained according to symmetrical situations and tangency situations of the inscribed circle body and the regular polygon body. Compared with the prior art, the actual processing accuracy of a numerical control machine tool can be effectively judged by using a testing method for processing a regular polygon and a tangency circle of the regular polygon, and the present invention has the advantages of simplicity, practicality and effectiveness. The present invention is suitable for the delivery inspection or the user acceptance inspection of fabricating plants of numerical control boring-milling machine tools with the linkage of three shafts to five shafts, and has great practical value and extensive market prospects.
Description
One, technical field
The present invention relates to a kind of method of inspection of lathe synthesis precision, specifically a kind of method of inscribed circle for testing of synthesis precision of numerically controlled machine tool.
Two, background technology
In the plant equipment manufacturing industry, numerically-controlled machine is the last key equipment of processing technology under normal conditions at present.In order to guarantee high-quality processing parts, quite strict requirement has just been proposed for the manufacturing accuracy of numerically-controlled machine itself.Three to the factory inspection of the digital-control boring-milling machine manufacturing works of five-axle linkage or user's acceptance inspeciton, the common method of inspection has following several:
1, geometric accuracy inspection comprises bearing accuracy, repetitive positioning accuracy and interpolation precision of adopting step gage, laser interferometer and feel of the ball instrument etc. to check lathe or the like;
2, cutting precision inspection comprises oblique side of milling round platform and 30 degree or the like, is used to check the actual machining precision of lathe;
The above method of inspection respectively has certain effect, but the many links in machining precision that numerically-controlled machine is final and the machine assembling process are closely related, the existing method of inspection is all less than the ability of the actual machining precision of determination number controlled machine exactly, as the manufacturing accuracy of bearing, bearing seat and the ball-screw of each motion feeding coordinate, nut etc. itself, assembly precision or the like.Thereby often go wrong, cause the user to add the part quality instability in man-hour, particularly in the processed complex curved surface, user's requirement can not obtain satisfying fully.
Three, summary of the invention
The method of inscribed circle for testing that the purpose of this invention is to provide a kind of synthesis precision of numerically controlled machine tool.Its adopt processing regular polygon and with the method for inspection of the tangent circle of this regular polygon, come the interpolation of check number controlled machine to add the error of different motion track in man-hour, can be used for three to the factory inspection of the digital-control boring-milling machine manufacturing works of five-axle linkage or user's acceptance inspeciton, method is simple for this, practical and effective.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of inscribed circle for testing of synthesis precision of numerically controlled machine tool, it is characterized in that it at first processes the regular polygon body on the test material, process a nominal size and regular polygon body opposite side consistent size and the inscribed circle body tangent then with the regular polygon body, and, may further comprise the steps according to the synthesis precision that the symmetric case and the tangent situation of inscribed circle body and regular polygon body obtains lathe:
A) will test material is fixed on the lathe; The test material can be bar.
B) cutter adopts the method for interpolation that the test material is carried out cut, obtains the regular polygon body; The regular polygon body can be the regular hexagon body, also can be square body or positive n limit body.
C) in the regular polygon body, process, obtain nominal size and regular polygon body opposite side consistent size and the inscribed circle body tangent with the regular polygon body; Same cutter also adopts the method for interpolation that the test material is carried out cut.
D) synthesis precision that obtains lathe according to the symmetric case and the tangent situation of inscribed circle body and regular polygon body.
Many links in the machining precision that numerically-controlled machine is final and the smooth finish of finished surface and the machine assembling process are closely related, the present invention's method programming with interpolation on a bar mills out a regular polygon body, uses the method programming nominal size of milling of interpolation and the inscribed circle body of regular polygon body opposite side consistent size then on the regular polygon body.Observe the symmetric case of inscribed circle body and regular polygon body, the track of cutter is straight line or oblique line during owing to interpolation processing regular polygon body, sealing at last; And the track of cutter is a full circle during interpolation processing inscribed circle body, so the symcenter of regular polygon body has also just truly reflected machining accuracy of NC machine tool with the degree that overlaps at inscribed circle body center; Again because regular polygon body and inscribed circle body are same nominal size, the degree of this coincidence just is reflected in each limit and the tangent place of inscribed circle body of regular polygon body fully, even error is about 0.01mm, what also can be perfectly clear shows.
Because circular motion and the output of rectilinear motion on numerically-controlled machine have certain systematic error, be inevitable, with bar cutting regular polygon body the time, the round platform at each place, point of contact can be cut off more slightly, check that whether consistent place's round platform cut amount in each point of contact and seldom, if satisfy above-mentioned requirements, then numerically-controlled machine 2 dimension machining precisioies are good.
This principle of the present invention can be used in the combination of square body, regular hexagon body or n limit body and inscribed circle body.
Compared with prior art, the present invention can reflect the interpolation operating accuracy of numerically-controlled machine more accurately, simple and easy to do, the ability of the actual machining precision of determination number controlled machine effectively, the outgoing that guarantees numerically-controlled machine is in a higher level, thereby improves competition capability.
Four, embodiment
A kind of method of inscribed circle for testing of synthesis precision of numerically controlled machine tool of the present invention, at first on bar, process the regular hexagon body, process a nominal size and regular hexagon body opposite side consistent size and the inscribed circle body tangent then with the regular hexagon body, and, may further comprise the steps according to the synthesis precision that the symmetric case and the tangent situation of inscribed circle body and regular hexagon body obtains lathe:
A) will test with bar and be fixed on the lathe;
B) cutter adopts the method for interpolation that bar is carried out cut, obtains the regular hexagon body;
C) adopt the method for interpolation in the regular hexagon body, to carry out cut equally, obtain nominal size and regular hexagon body opposite side consistent size and the inscribed circle body tangent with the regular hexagon body;
D) synthesis precision that obtains lathe according to the symmetric case and the tangent situation of inscribed circle body and regular hexagon body.
Because the track of cutter is straight line or oblique line during interpolation processing regular hexagon body, sealing at last; And the track of cutter is a full circle during interpolation processing inscribed circle body, and therefore, the symcenter of regular hexagon body is good with the degree that overlaps at inscribed circle body center, has also just reflected the machining accuracy of NC machine tool height; Because regular hexagon body and inscribed circle body are same nominal size, each limit of regular hexagon body and inscribed circle body are tangent evenly, then the machining accuracy of NC machine tool height again.
Because circular motion and the output of rectilinear motion on numerically-controlled machine have certain systematic error, be inevitable, with bar cutting regular hexagon body the time, the round platform at each place, point of contact can be cut off more slightly, check that whether consistent place's round platform cut amount in each point of contact and seldom, if satisfy above-mentioned requirements, then numerically-controlled machine 2 dimension machining precisioies are good.Further check if desired, the distance of three groups of opposite side of available miking regular hexagon and the diameter of three respective direction of inscribed circle, error is less than or equal to 0.01mm and then meets the requirements.
Claims (3)
1. the method for inscribed circle for testing of a synthesis precision of numerically controlled machine tool, it is characterized in that it at first processes the regular polygon body on the test material, process a nominal size and regular polygon body opposite side consistent size and the inscribed circle body tangent then with the regular polygon body, and, may further comprise the steps according to the synthesis precision that the symmetric case and the tangent situation of inscribed circle body and regular polygon body obtains lathe:
A) will test material is fixed on the lathe;
B) cutter adopts the method for interpolation that the test material is carried out cut, obtains the regular polygon body;
C) adopt the method for interpolation in the regular polygon body, to process, obtain nominal size and regular polygon body opposite side consistent size and the inscribed circle body tangent with the regular polygon body;
D) synthesis precision that obtains lathe according to the symmetric case and the tangent situation of inscribed circle body and regular polygon body.
2. the method for inscribed circle for testing of synthesis precision of numerically controlled machine tool according to claim 1 is characterized in that: test material steps A) and be bar.
3. the method for inscribed circle for testing of synthesis precision of numerically controlled machine tool according to claim 1, it is characterized in that: the regular polygon body that obtains step B) is the regular hexagon body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100401953A CN100383689C (en) | 2005-05-24 | 2005-05-24 | Method of inscribed circle for testing synthesis precision of numerically controlled machine tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100401953A CN100383689C (en) | 2005-05-24 | 2005-05-24 | Method of inscribed circle for testing synthesis precision of numerically controlled machine tool |
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| CN1696634A CN1696634A (en) | 2005-11-16 |
| CN100383689C true CN100383689C (en) | 2008-04-23 |
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| CNB2005100401953A Expired - Fee Related CN100383689C (en) | 2005-05-24 | 2005-05-24 | Method of inscribed circle for testing synthesis precision of numerically controlled machine tool |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109048496B (en) * | 2018-09-11 | 2020-04-21 | 湖北三江航天红阳机电有限公司 | Pyramid-shaped part for comprehensive test of five-coordinate machine tool and detection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858154A1 (en) * | 1998-12-16 | 2000-06-29 | Fraunhofer Ges Forschung | Method and appliance for calibrating movable devices with at least one partially uncertain geometrical parameter, provides measurement parameters used in control algorithm for numerical control of device |
| WO2000073028A1 (en) * | 1999-05-28 | 2000-12-07 | Bernd Scheibner | Method for measuring a handling device |
| CN1540469A (en) * | 2003-10-28 | 2004-10-27 | 华北电力大学 | Method and device of three coordinate circular interpolations in use for digital control machine tool |
| EP1505464A2 (en) * | 2003-08-07 | 2005-02-09 | Ekkehard Alschweig | Method for self-testing the accuracy of a high-precision machine tool |
-
2005
- 2005-05-24 CN CNB2005100401953A patent/CN100383689C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858154A1 (en) * | 1998-12-16 | 2000-06-29 | Fraunhofer Ges Forschung | Method and appliance for calibrating movable devices with at least one partially uncertain geometrical parameter, provides measurement parameters used in control algorithm for numerical control of device |
| WO2000073028A1 (en) * | 1999-05-28 | 2000-12-07 | Bernd Scheibner | Method for measuring a handling device |
| EP1505464A2 (en) * | 2003-08-07 | 2005-02-09 | Ekkehard Alschweig | Method for self-testing the accuracy of a high-precision machine tool |
| CN1540469A (en) * | 2003-10-28 | 2004-10-27 | 华北电力大学 | Method and device of three coordinate circular interpolations in use for digital control machine tool |
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| CN1696634A (en) | 2005-11-16 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Jingling Machine Tool Manufacturing Co., Ltd. Assignor: Nanjing Sikai Electronic Enterprise Co., Ltd. Contract fulfillment period: 2008.6.20 to 2013.6.19 contract change Contract record no.: 2009340000061 Denomination of invention: Method of inscribed circle for testing synthesis precision of numerically controlled machine tool Granted publication date: 20080423 License type: Exclusive license Record date: 2009.4.23 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.6.20 TO 2013.6.19; CHANGE OF CONTRACT Name of requester: ANHUI JINGLING MACHINE TOOL MANUFACTURING CO., LTD Effective date: 20090423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20140524 |