工程制圖量測(cè)說(shuō)明ppt課件-文庫(kù)吧資料
2024-11-09 20:44本頁(yè)面
【正文】 o datum A Feature axis must lie within the tolerance zone ? 有加注尺寸的位置度公差 A A 90? ?10? (2) 53 有標(biāo)明多個(gè)數(shù)據(jù)的位置度公差 60 ? A B C 20 30 A B C Cylindrical tolerance zone must be perpendicular to datum A and parallel to datum B and C Datum A plane Datum B plane Datum C plane Axis of feature must be within the cylindrical tolerance zone ?10? (2) 54 MMC使用計(jì)算原則 164。 Positional tolerance with datum 164。旋轉(zhuǎn)圓形總體表面 – 選擇正確的斜面 (有角度的 ) ? Runout is the radial deviation of a circular line element or surface from a specified axis ? Runout must always be specified in relation to a datum 軸 46 A1 A2 A Full Indicator Movement must be within runout tolerance of for each circular element (line) Runout of Circular Element 47 A1 A2 A Full Indicator Movement must be within runout tolerance of for the total surface Runout of Total Surface Perform measurement for many circular element and find the lowest and highest reading to get the FIM for the total surface 48 A Tolerance of FIM for each circular element A Tolerance of FIM for each circular element Runout for Circular Element – 傾斜的面 Runout for Circular Element Right Angled Faces 49 公差 指在 FIM for all the circular element bined A 避開(kāi)總體的表面 Right Angled Faces 50 位置度公差 164。旋轉(zhuǎn)圓形總體表面 164。 Parallelism of Axis in Relation to Datum Axis ? Parallelism must be measured in relation to a datum plane or axis 42 A A Tolerance zone formed by 2 planes apart and parallel to Datum A Datum A plane Surface must be within size limits and additionally restricted by the parallelism tolerance Parallelism of a Surface 43 A A tolerance zone formed by 2 planes parallel to datum A plane Datum plane A Axis of the hole must be within the dimensional limit and additionally fall within the planes of the tolerance zone 軸線(xiàn)到一個(gè)基準(zhǔn)面的平行尺寸 44 Datum A Axis Feature Axis must lie within the tolerance zone for the width of the feature cylindrical tolerance zone Parallelism of Axis in Relation to Datum Axis A ? A 45 圓度和圓形度公差 164。 面之間的平行 164。 Perpendicularity of an Axis Determined by 2 Parallel Planes Tolerance Zone 164。 Perpendicularity of a Surface in Relation to a Datum Plane 164。 角的斜面 164。 Profile Unilateral Tolerance 164。 Profile WITH Datum Reference 164。 理論上存在的輪廓 164。 Staging the Part for Flatness Inspection ? 被測(cè)表面必須位于兩個(gè)平行平面之內(nèi) ? 如果只要求要素某ㄧ部分的公差值 ,兩個(gè)平面度公差ㄧ定要注明數(shù)據(jù) 25 max 這個(gè)實(shí)際的表面平坦度公差 是存在于兩個(gè)平行的面之間的 . 平面度的表示 26 Part can be staged using spherical ended pins and the point immediately above it (surface to be checked) is zero. This will enable a zero plane to be established amp。 不能超過(guò)直線(xiàn)度 直線(xiàn)度的方向 ? 22 軸心的直線(xiàn)度 軸線(xiàn)在實(shí)際中的表現(xiàn) 理論上軸線(xiàn)必須在這圓柱體的公差內(nèi)浮動(dòng) 圓柱公差帶 ? ? 4? 23 MMC邊界線(xiàn)在直線(xiàn)度公差的運(yùn)用 ? (12d10) Actual Straightness Size Tolerance . . . 平面到產(chǎn)品的垂直距離 實(shí)際尺寸 MMC邊線(xiàn) 24 平面度公
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