摘要

摩托車是一種應用廣泛、快速、經(jīng)濟、舒適的交通工具，它具有自行車的靈活性、輕便性，也有汽車的機動性和高速性。在中小城市，它是一種廣泛應用的交通工具。
本文主要介紹摩托車發(fā)動機殼體零件的機械加工工藝規(guī)程和工藝裝備的設(shè)計過程。機械加工工藝規(guī)程是規(guī)定零件機械加工工藝過程和操作方法等的工藝文件，它是指揮現(xiàn)場生產(chǎn)的依據(jù)，是進行有關(guān)的技術(shù)準備和生產(chǎn)準備的依據(jù)。本文所提的工藝裝備主要是指夾具，它是安裝在機床上用于工件定位和夾緊的工藝裝備。
本次設(shè)計的主要內(nèi)容包括：根據(jù)摩托車發(fā)動機殼體零件技術(shù)要求，確定該零件的生產(chǎn)類型、并對零件進行工藝分析、確定毛坯的制造方式、選擇定位基準并擬訂工藝路線、確定各工序的設(shè)備及工藝裝備、確定重要工序的加工余量和工序尺寸、確定切削用量和工時定額。最后，重點設(shè)計了該殼體零件加工工藝過程中的兩道主要工序的夾具。


關(guān)鍵詞：殼體零件，機械加工工藝規(guī)程，夾具設(shè)計, CAD

ABSTRACT

Motorcycle is a broad, rapid, economic and comfortable means of transport. It has the flexibility of a bike, also has the mobility and high-speed of the car. In the medium and small cities, it is a widely used means of transport.
This article main introducts motorcycle motor body components machine-finishing technological process and craft equipment designing process. The machine-finishing technological process is the document stipulating part machine work procedure and the operating method handicraft. It commands the basis produced live, carries on the basis about preparing and producing and preparing in technology. Craft equipment this text proposed mainly refers to the jig, which is installed in the machine parts used for positioning and clamping the technique and equipment.
The main content of this text includes: According to the motorcycle engine shell part technical requirement, confirm the production type of this part, carry on craft analysis to the part, confirm the manufacture of the blank, choose to orient basis and work out the craft route, confirm every process of apparatus and crafts equip, confirm important processing surplus and process size of process, and confirm that cuts consumption and hour norm, finally, has designed two main jig with emphasis this shell components processing technological process.


Key words：shell components, machine-finishing technological process, jig design, CAD

目 錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
1.1 論文的目的和意義 1
1.2 課題研究的任務 1
1.3 論文的主要工作 1
2 機械加工工藝規(guī)程設(shè)計 2
2.1 零件分析 2
2.1.1零件的結(jié)構(gòu)特點及功用 2
2.1.2零件的主要技術(shù)要求 2
2.1.3零件的結(jié)構(gòu)工藝性分析 4
2.2 零件毛坯選擇 6
2.2.1零件的毛坯材料 6
2.2.2毛坯制造方法 8
2.2.3鑄造方法的特點和適用范圍 10
2.2.4澆注位置的選擇 13
2.2.5毛坯分型面的選擇 13
2.2.6毛坯拔模斜度 14
2.2.7毛坯精度等級和加工余量選擇 14
2.3 機械加工路線的制定 15
2.3.1定位基準的選擇 15
2.3.2加工方法的選擇 17
2.3.3工藝路線的擬定 21
2.4 工序設(shè)計 25
2.4.1加工余量幾及工序尺寸的確定 25
2.4.2確定重要表面加工的工藝裝備、切削時間及工時定額 27
3機床夾具設(shè)計 34
3.1 概述 34
3.2 夾具設(shè)計方法與步驟 34
3.2.1專用夾具設(shè)計概述 34
3.2.2工序15：粗銑A面的專用夾具設(shè)計 37
3.2.3工序45：粗鏜ф40孔的專用夾具設(shè)計 40
4 結(jié)語 44
致謝 45
參考文獻 46