CN102519408B - Method for measuring a plurality of parts at one time by three-coordinate measuring machine - Google Patents
Method for measuring a plurality of parts at one time by three-coordinate measuring machine Download PDFInfo
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- CN102519408B CN102519408B CN 201110411651 CN201110411651A CN102519408B CN 102519408 B CN102519408 B CN 102519408B CN 201110411651 CN201110411651 CN 201110411651 CN 201110411651 A CN201110411651 A CN 201110411651A CN 102519408 B CN102519408 B CN 102519408B
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Abstract
The invention provides a method for measuring a plurality of parts at one time by a three-coordinate measuring machine. The method comprises the following steps: performing uniformly-spaced bonding on a plurality of measured parts in the same reference, then regarding a row of measured parts as a whole body, manually measuring locating surface, line and point as needed by using a combined measuring needle, and establishing an initial coordinate system A0 by using a 3-2-1 rule; and then compiling and running a measurement program of a first measured part according to the measurement requirements, taking an average interval of two measured parts as a measuring modulus, copying the measurement program of the first measured part and performing array pasting, and finishing the measurement of asecond measured part and so on until finishing the measurement of all the measured parts. The three-coordinate measuring machine is easy to assemble and clamp, wide in application range, low in cost,convenient to operate and higher in useful value; and the whole measurement process is automatically finished except for manual measurement of initial locating.
Description
Technical field
The invention belongs to the detection method technical field, be specifically related to a kind of method with a plurality of parts of three coordinate measuring machine one-shot measurement.
Background technology
When using the three coordinate measuring engine measurement part, efficient is lower, is generally single-piece and measures, and namely in different ways part is carried out clamping according to the part shape size characteristic, uses the measurement content of finishing part manually or automatically again.Manual measurement is that whole measuring process is manually to finish; Automatically measuring needs the establishment process of measurement, and machine is finished measurement by the operating measurement program then.The general employing automatically of conventional part measured.When part relatively hour, chaining pin is obstructed during for fear of measurement, can not directly part be contained on the scroll chuck, but V shape iron or other auxiliary cushion block are contained on the scroll chuck, with instant drying adhesive part is bonded on V shape iron or other auxiliary clamp again, then part is measured.But since most findings when bonding surface of contact little, need the manual measurement location before the working procedure, part is loosening easily during manual measurement, operability is very poor.When tested part quantity is big, need to measure by part, efficient is low, operability is poor owing to measure, so labour intensity is very big, therefore is necessary to improve.
Summary of the invention
In order to solve problems such as parts measurement efficient is low in batches, operability is poor, personnel labor intensity is big, the invention provides a kind of method with a plurality of parts of three coordinate measuring machine one-shot measurement.
The technical solution used in the present invention: with the method for a plurality of parts of three coordinate measuring machine one-shot measurement, under same benchmark, carry out a plurality of tested parts uniformly-spaced bonding, regard row's tested part as an integral body then, use combination chaining pin manual measurement locating surface, line, point as required, setting up initial coordinate with the 3-2-1 rule is A0.Then according to measuring the process of measurement that requires establishment and move first tested part, get the equispaced of two tested parts again for measuring modulus, process of measurement with first tested part copies and the array stickup again, finish the measurement of second tested part, and the like until the measurement of finishing whole tested parts.
Concrete steps are as described below:
1) will assist block to be placed on the smooth worktable, longer slip gauge will be resisted against auxiliary block side, and the tested part side will be resisted against auxiliary block side and the tested part bottom is fixed on the long slip gauge successively;
2) get scroll chuck and place on the three-dimensional coordinates measurement machine worktable, V shape iron is clamped on the scroll chuck, the long slip gauge that fixes tested part is fixed on the V shape iron upper surface;
3) manual initial alignment, regard row's tested part as an integral body, select for use the combination chaining pin to survey multiple spot at the part upper surface and determine that the plane is reference field, (direction parallel with long slip gauge) and last tested part side (direction parallel with long slip gauge) each survey determines that some line is as datum line in first tested part side, measure any as reference point at first tested part then, setting up initial coordinate according to the 3-2-1 rule is A0;
4) determine to measure modulus, the i.e. centre distance of adjacent two tested parts;
5) according to measuring the process of measurement that requires establishment and move first tested part;
6) process of measurement with first tested part copies, and the measurement modulus of determining in the optional step 4 carries out array to the process of measurement of first tested part and pastes, and can obtain the process of measurement of a plurality of tested parts.
7) start process of measurement, finish the measurement to a plurality of tested parts automatically.
In the above-mentioned steps 1, smear instant drying adhesive in the tested part bottom and also tested part is bonded on the long slip gauge end face successively.
In the above-mentioned steps 2, smear instant drying adhesive in long slip gauge bottom and the V shape iron upper surface is bonding.
In the above-mentioned steps 4, record total distance of first tested part and last tested part, the mean distance of trying to achieve adjacent two tested parts then is the measurement modulus.
The present invention's advantage compared with prior art:
1, the measuring method clamping is simple, widely applicable, cost is low, easy to operate, except the initial alignment manual measurement, whole measuring process is finished automatically;
2, part is difficult for becoming flexible, and is workable, measures the efficient height, and labour intensity is low, and the empirical tests measurement result accurately and reliably;
3, this method practicality is good, is easy to apply, and has big practical value;
When 4, part is bonding on long slip gauge, only need considerably less some instant drying adhesives, after part has been surveyed, only stay the dried glue of very thin one deck, one move to fall gently, be easy to cleaning, can not influence the part outward appearance.
Description of drawings
Fig. 1 measures structural representation for clamping of the present invention;
Fig. 2 is tested part of the present invention and long slip gauge bonded structure front view;
Fig. 3 is tested part of the present invention and long slip gauge bonded structure side view.
Embodiment
Below in conjunction with accompanying drawing 1,2,3 a kind of embodiment of the present invention is described.
Method with a plurality of parts of three coordinate measuring machine one-shot measurement, under same benchmark, carry out a plurality of tested parts 2 uniformly-spaced bonding, regard row's tested part 2 as an integral body then, use combination chaining pin 4 manual measurement locating surface, line, point as required, setting up initial coordinate with the 3-2-1 rule is A0.Then according to measuring the process of measurement that requires establishment and move first tested part 2, get the equispaced of two tested parts 2 again for measuring modulus, process of measurement with first tested part 2 copies and the array stickup again, finish the measurement of second tested part 2, and the like until the measurement of finishing whole tested parts 2.
Be example with 50 tested parts 2 (joint) now, the method for using a plurality of parts of three coordinate measuring machine one-shot measurement be presented below:
1) bonding part: see accompanying drawing 2 and accompanying drawing 3, a long * wide * high auxiliary block 1 in 320 * 20 * 40 is placed on the smooth worktable, again a long * wide * high long slip gauge 3 in 320 * 10 * 30 is resisted against auxiliary block 1 side, be coated with some instant drying adhesives in first joint bottom, against auxiliary block 1 side, the bottom surface of joint is bonded on the long slip gauge 3 with a side of joint; Be coated with some instant drying adhesives second joint bottom again, the joint side is resisted against auxiliary block 1 side and first joint is bonded on the long slip gauge 3 side by side, and the like, 50 parts are bonding;
2) scroll chuck 5 is placed on the three-dimensional coordinates measurement machine worktable, as shown in Figure 1, V shape iron 6 is clamped on the scroll chuck 5, be coated with some glue in V shape iron 6 upper surfaces, the long slip gauge 3 that glues part is clung with V shape iron 6 upper surfaces, will long slip gauge 3 parallel with the instrument Y-direction as far as possible, namely finish the clamping of part;
3) manual initial alignment, regard 50 joints as an integral body, survey 4 definite planes (minimum 3 points) as reference field at the joint upper surface, each is surveyed and determines that some line is as datum line for (direction parallel with long slip gauge 3) and the 50th joint side in first joint side (direction parallel with long slip gauge 3), measure a bit as reference point at first joint, setting up initial coordinate according to the 3-2-1 rule is A0, so-called 3-2-1 rule, namely determine a reference field by 3, determining a datum line at 2, is reference point a bit;
4) determine to measure modulus, the key parameter of modulus is the distance at adjacent two joint centers; Determine method: the total distance that records first 50 joint centers, joint center to the is 322.850mm, equal the mean distance that 6.457mm is two joint centers with 322.850mm divided by 49, be the measurement modulus, average to measuring the positioning error that modulus can disperse joint;
5) selecting for use of chaining pin: because that the combination chaining pin is measured stroke is short, the efficient height, the risk of damaging gauge head is little, so the measurement of this part selects the combination chaining pin for use, selects 3 chaining pins totally 5 chaining pins as required for use;
6) according to measuring the process of measurement that requires establishment and move first joint;
7) process of measurement with first joint copies, and the measurement modulus of determining in the optional step 4 carries out array to the process of measurement of first joint and pastes, and can obtain the process of measurement of a plurality of joints;
8) start process of measurement, finish the measurement to a plurality of joints automatically.
9) measurement result is verified: the measurement result of 50 joints of one-shot measurement is compared with the measurement result of the single joint of each measurement and (is taken out wherein 10 part comparisons, see the following form), maximum differs 1.2um, belongs to the equipment nominal error, and therefore the measurement result of 50 joints accurately and reliably.
10) if when need measuring how same part joint, program can be continued to use, and only need manually finish the initial alignment of next group joint, and machine can be finished measurement automatically.
Above-described embodiment is preferred embodiment of the present invention, is not to limit the scope of the present invention, so all equivalences of being done with the described content of claim of the present invention change, all should be included within the claim scope of the present invention.
Claims (5)
1. use the method for a plurality of parts of three coordinate measuring machine one-shot measurement, it is characterized in that: under same benchmark, carry out a plurality of tested parts (2) uniformly-spaced bonding, regard row's tested part (2) as an integral body then, use combination chaining pin (4) manual measurement locating surface as required, line, the point, setting up initial coordinate with the 3-2-1 rule is A0, then according to measuring the process of measurement that requires establishment and move first tested part (2), get the equispaced of two tested parts (2) again for measuring modulus, the process of measurement of first tested part (2) is copied and the array stickup, finish the measurement of second tested part (2), and the like until the measurement of finishing whole tested parts (2).
2. the method with a plurality of parts of three coordinate measuring machine one-shot measurement according to claim 1 is characterized in that comprising the steps:
1) will assist block (1) to be placed on the smooth worktable, again long slip gauge (3) is resisted against auxiliary block (1) side, tested part (2) side is resisted against auxiliary block (1) side and tested part (2) bottom is fixed on the long slip gauge (3) successively;
2) get scroll chuck (5) and place on the three-dimensional coordinates measurement machine worktable, V shape iron (6) is clamped on the scroll chuck (5), the long slip gauge (3) that will fix tested part (2) is fixed on V shape iron (6) upper surface;
3) manual initial alignment, regard row's tested part (2) as an integral body, select for use combination chaining pin (4) to survey multiple spot at the part upper surface and determine that the plane is reference field, determine a bit that in first tested part (2) side and each survey of last tested part (2) side line is as datum line, measure any as reference point at first tested part (2) then, setting up initial coordinate according to the 3-2-1 rule is A0;
4) determine to measure modulus, the i.e. centre distance of adjacent two tested parts;
5) according to measuring the process of measurement that requires establishment and move first tested part;
6) process of measurement with first tested part copies, and the measurement modulus of determining in the optional step 4 carries out array to the process of measurement of first tested part and pastes, and can obtain the process of measurement of a plurality of tested parts;
7) start process of measurement, finish the measurement to a plurality of tested parts automatically.
3. the method with a plurality of parts of three coordinate measuring machine one-shot measurement according to claim 2 is characterized in that: above-mentioned steps 1), smear instant drying adhesive in tested part (2) bottom and also successively tested part (2) is bonded on long slip gauge (3) end face.
4. the method with three coordinate measuring machine one-shot measurement a plurality of parts according to claim 2 is characterized in that: above-mentioned steps 2), smear instant drying adhesive and V shape iron (6) upper surface is bonding bottom long slip gauge (3).
5. according to claim 1 or 2 or 3 or 4 described methods with a plurality of parts of three coordinate measuring machine one-shot measurement, it is characterized in that: above-mentioned steps 4), record total distance of first tested part (2) and last tested part (2), the mean distance of trying to achieve adjacent two tested parts (2) then is the measurement modulus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110411651 CN102519408B (en) | 2011-12-12 | 2011-12-12 | Method for measuring a plurality of parts at one time by three-coordinate measuring machine |
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| CN 201110411651 CN102519408B (en) | 2011-12-12 | 2011-12-12 | Method for measuring a plurality of parts at one time by three-coordinate measuring machine |
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| CN102519408B true CN102519408B (en) | 2013-09-11 |
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| CN108562262A (en) * | 2018-03-06 | 2018-09-21 | 中国航发哈尔滨东安发动机有限公司 | A kind of Gerotor pump divides the measurement method of food tray |
| CN108413909B (en) * | 2018-04-20 | 2024-01-23 | 核工业理化工程研究院 | Positioning adjustment device for measuring long cylinder parts and positioning method thereof |
| CN109631812B (en) * | 2018-12-29 | 2020-12-18 | 哈工精测(岳阳)智能装备有限公司 | Method for automatically measuring size of gear |
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| US7251580B2 (en) * | 2003-10-20 | 2007-07-31 | Mitutoyo Corporation | Method for measuring curved surface of workpiece, program and medium thereof |
| WO2006064445A1 (en) * | 2004-12-16 | 2006-06-22 | Koninklijke Philips Electronics N.V. | Sequential multi-probe method for measurement of the straightness of a straightedge |
| CN201170718Y (en) * | 2008-03-26 | 2008-12-24 | 春兴铸造(苏州工业园区)有限公司 | Measuring apparatus for three coordinates |
| CN201706998U (en) * | 2010-05-13 | 2011-01-12 | 浙江吉利汽车有限公司 | Detector for left suspended support plate of automobile |
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Effective date of registration: 20211220 Address after: 215500 building 3, No.10, Jindu Road, Southeast street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Jingren Optoelectronic Technology (Suzhou) Co.,Ltd. Address before: 721006 No. 70 Qing Jiang Road, Shaanxi, Baoji Patentee before: SHAANXI BAOCHENG AVIATION INSTRUMENT Co.,Ltd. |
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