三坐標(biāo)測(cè)量機(jī)驗(yàn)收辦法
三坐標(biāo)測(cè)量機(jī)驗(yàn)收辦法Acceptance Test for CMM
在用戶現(xiàn)場(chǎng)調(diào)試后的測(cè)量機(jī)驗(yàn)收方法,根據(jù)其配置的不同,分別依據(jù)下列標(biāo)準(zhǔn)執(zhí)行:
GB/T16857.2-2006《坐標(biāo)測(cè)量機(jī)的驗(yàn)收檢測(cè)和復(fù)檢檢測(cè)-第2 部分:用于測(cè)量尺寸的坐標(biāo)測(cè)量機(jī)》(等同ISO 10360-2:2001);
Theacceptance tests on site by customer should follow this standard:
GB/T16857.2-2006, Acceptance and reverification tests for coordinate measuringmachines
part2: CMMs used for measuring size (ISO 10360-2:2001, IDT).
1檢測(cè)項(xiàng)目 Tests Item:
1.1外觀及各部分的相互作用Appearance and function for each section
1.2計(jì)算機(jī)、打印機(jī)及軟件功能 Function of computer, printer and software
1.3探測(cè)誤差(P)Probing Error
1.4示值誤差(E)Error of indication for size measurement
2檢測(cè)方法Tests method:
檢測(cè)前測(cè)量機(jī)應(yīng)通電24 小時(shí)以上。
TheCMM should keep the status of ?power on? over 24 hours.
2.1目測(cè)和操作試驗(yàn)檢查外觀及各部分的相互作用。
Checkby eye to confirm the appearance is OK and operate the CMM to confirm each
sectioncan work well.
2.2用相應(yīng)的診斷程序檢查計(jì)算機(jī)、打印機(jī)及軟件功能。
Checkthe function of computer, printer and software by relevant analytic program.
2.3探測(cè)誤差(P)的檢測(cè) Test Probing Error (P):
在直徑不小于10mm 不大于50mm 的檢測(cè)球上,用長(zhǎng)度符合廠商規(guī)定的探針,隨意選擇探針的方位,觸測(cè)25 個(gè)點(diǎn),各點(diǎn)在半球上的分布盡量均勻,用全部25 個(gè)測(cè)量值計(jì)算出最小二乘球的中心,并計(jì)算出各點(diǎn)的徑向距離,最大徑向距離與最小徑向距離之差即為探測(cè)誤差(P)。應(yīng)滿足給定的MPEP 值。
Aplaced test sphere, which has a diameter not less than 10 mm and not greaterthan 50 mm, is measured with 25 equally distributed points by a tip whoselength is stated by manufacturer. These 25 stochastic points should locate onarbitrary direction. Use all 25 measurements to compute the Least Squareassociated sphere. Calculate the distance between each of the 25 measurementsand the sphere center in the radial direction. The range of the 25 distances isMPEP. The actual measurement on site must be within the stated MPEP.
2.4長(zhǎng)度測(cè)量的示值誤差(E)的檢測(cè)
TestError of indication for size measurement(E):
2.4.1在坐標(biāo)測(cè)量機(jī)的工作空間任選七個(gè)方位,每個(gè)方位測(cè)5 個(gè)尺寸的量塊,每個(gè)尺寸的量塊測(cè)量三次。即35 組測(cè)量長(zhǎng)度總測(cè)量次數(shù)為105 次。計(jì)算105 個(gè)長(zhǎng)度測(cè)量的誤差值△ L,應(yīng)滿足給定的坐標(biāo)測(cè)量機(jī)長(zhǎng)度測(cè)量的示值誤差MPEE值。
Choose7 different positions within the CMM measuring volume and measure a set of 5sizes gauge block at each position. Each size is measured 3 times, so can get atotal of 105 measurements in 35 groups. Calculate △ L-the error of this 105length measurements. All of them must be within the specified MPEE.
2.4.235 組測(cè)量長(zhǎng)度中,允許最多有5 組,其三次重復(fù)測(cè)量中有一次超出規(guī)定的MPEE 值,對(duì)每個(gè)超差的測(cè)量長(zhǎng)度,應(yīng)在相應(yīng)的方位再測(cè)10 次,如10 次復(fù)測(cè)得到的所有長(zhǎng)度測(cè)量的誤差值△ L 均在MPEE 值內(nèi),則示值誤差(E)的檢測(cè)被通過(guò)。
Inthe 35 groups of data, 5 groups of data at most can be permitted to have 1 ofthe 3 measurements over the stated MPEE value. If such case occurs, for eachoversized measurement, it should be measured again at the same position for 10more times. If all of the new 10 measurements? errors of △ L are within MPEEvalue, the verification for E is passed.
2.4.3上述測(cè)量中探針長(zhǎng)度應(yīng)符合廠商規(guī)定,量塊最短長(zhǎng)度不應(yīng)大于30mm;量塊最大長(zhǎng)度至少是坐標(biāo)測(cè)量機(jī)工作空間對(duì)角線最大長(zhǎng)度的66%,如超過(guò)1m 時(shí),則用1m 量塊。
Thelength of probe tip above-mentioned is stated by manufacturer. The minimumlength of gauge block should be shorter than 30mm and the maximum length shouldbe longer than 66% of the maximum cater-corner length of CMM?s working volume.The maximum length of block should be 1m if the value calculated is longer than1m.
3驗(yàn)收交接Acceptance:
3.1以檢測(cè)記錄、裝箱單和合同為準(zhǔn),雙方交接、驗(yàn)收。驗(yàn)收合格,雙方代表在驗(yàn)收?qǐng)?bào)告上簽字。若有異議,協(xié)商解決。遺留問(wèn)題可簽署備忘錄,以便服務(wù)、解決.
Buyershould check and accept the CMM according to the tests report, packing list
andcontract. If tests result is OK, the representatives of both sides should signon the
AcceptanceReport. If disagreements occur, settlement through amicable negotiation
betweenthe two parties is advocated. Any unsettled problem should be recorded in
memorandumto help both sides to look for further settlement.