零件的測繪ppt課件-文庫吧資料
2025-03-28 01:27本頁面
【正文】 結(jié)構(gòu)形狀 :盤形并帶有凸緣和均布的通孔 Machining: The castings made by founding and machining. 加工方法 :該鑄件經(jīng)鑄造后進(jìn)行機(jī)加工 Requirements: Aging treatment and fillet radii R1～ 3. 要求 :需要經(jīng)過時(shí)效處理 ,鑄造圓角半徑為 R1～ 3mm First, one should know the part name, material, function, structure and machining shapes, as well as other requirements. 首先了解零件的名稱、材料、用途及各部分的結(jié)構(gòu)形狀、加工方法和要求等。 2. Map and produce the detail drawing of “ Bracket of grinding wheel” . 測繪并 畫出 “ 砂輪頭架 ” 零件的零件圖。 Measuring methods for dimension 零件尺寸的測量方法 8) Measuring the gear First, measure the diameter of the addendum circle with a vernier caliper, and then calculate the number of teeth and the gear module. 測量齒輪 先用游標(biāo)卡尺測量齒輪的齒頂圓直徑，再數(shù)齒 數(shù)，然后計(jì)算齒輪模數(shù)。 對于外螺紋 ,測 大徑和螺距 。 6) Round measuring Using a fillet gage. Each set of the fillet gage has several slices, the radius of which are different. 測量圓角 用圓角規(guī)測量 , 每套圓 角規(guī)有很多片 , 其圓弧半徑均不同 。 4) Measuring hole pitches Measure related dimensions with external calipers, and calculate hole pitches A=a+d/2+d/2. 測量孔間距 用外卡鉗測量相關(guān)尺寸 ,再進(jìn) 行計(jì)算 ,孔間距 A=a+d/2+d/2。 Measuring methods for dimension 零件尺寸的測量方法 Measuring methods for dimension 零件尺寸的測量方法 2) Measuring the internal (inside) and external (outside) diameters of the revolving body Measure the external diameter with external calipers and the internal diameters with internal calipers. 測量回轉(zhuǎn)體的內(nèi)外徑 測量外徑用外卡鉗 , 測量內(nèi)徑用內(nèi)卡鉗 。 1) Measuring linear dimensions It can be measured directly using a ruler. Sometimes one can measure them by bining a triangular rule with a regular ruler. 測量直線尺寸 一般可用直尺直接測量 , 有時(shí)也可用三角板 與直尺配合進(jìn)行測量。 4) Nonfitting or unimportant dimensions are allowed to be adjusted to integers. 無配合關(guān)系的尺寸或不重要的尺寸 ,允許將測得的尺寸適當(dāng)調(diào)整為整數(shù)。 Remarks on part mapping 零件測繪時(shí)的注意事項(xiàng) 請點(diǎn)擊鼠標(biāo)左鍵顯示后面內(nèi)容 2) The technical structure originated from manufacturing or mounting, such as curving of castings, chamfer, escape, dummy club and recess, should
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