立臥三面組機(jī)專用夾具設(shè)計(jì)

摘 要

機(jī)械加工夾具是實(shí)現(xiàn)產(chǎn)品設(shè)計(jì)，保證產(chǎn)品質(zhì)量，節(jié)約能源，降低消耗的重要手段，本課題研究立臥三面組合機(jī)床夾具設(shè)計(jì)。本論文是結(jié)合目前實(shí)際生產(chǎn)中，發(fā)現(xiàn)僅用通用夾具不能滿足生產(chǎn)要求，用通用夾具裝夾工件生產(chǎn)效率低勞動(dòng)強(qiáng)大，加工質(zhì)量不高，而且往往需要增加劃線工序，而專門設(shè)計(jì)一種夾具：立臥三面組機(jī)專用夾具，主要包括夾具的定位方案，夾緊方案、導(dǎo)向方案，夾具體與定位鍵的設(shè)計(jì)及加工精度等方面的分析。

夾具設(shè)計(jì)是工藝裝備設(shè)計(jì)中的一個(gè)重要組成部分，在整個(gè)機(jī)械加工過程中，夾具除了夾緊、固定被加工零件外，還要求保證加工零件的形狀、位置精度、尺寸以及加工生產(chǎn)率的提高。本課題在設(shè)計(jì)的過程當(dāng)中，深入生產(chǎn)實(shí)際，進(jìn)行調(diào)查研究，吸取國內(nèi)外先進(jìn)技術(shù)，制定出合理的設(shè)計(jì)方案，再進(jìn)行具體設(shè)計(jì)。本文設(shè)計(jì)的夾具，基本上可以滿足工程需要，本文使用的設(shè)計(jì)方法，也可為同類夾具的設(shè)計(jì)提供參考。

關(guān)鍵詞：機(jī)械加工，組合機(jī)床，專用夾具

Dedicated fixture design of vertical and horizontal three surface combination machine

ABSTRACT

Machining fixture is to achieve product design, product quality, save energy, reduce consumption and an important means of study of this subject dedicated fixture design of vertical and horizontal three surface combination machine.The present paper is combing the actual production at present, which is that either using universal fixture cannot meet only production requirements or using universal fixture clamping work-piece to product is poor efficiency and powerful labor and not high processing quality or often it need to increase crossed process, to specially design one fixture: dedicated fixture design of vertical and horizontal three surface combination machine, mainly including schemes of fixture positioning, clamping and cutter, the design of the concrete and the TAB folder and the analysis of machining precision et al.

The fixture design is the design of process equipment is an important part in the entire machining process, fixtures Chule clamping Gudling processed parts , also sought assurances that the shape of machining parts precision of position, size and productivity improvement process . The issue in the design of the process, in-depth the actual production, conduct research, to learn foreign advanced technology, to develop reasonable design plan, carrying out design of eva luations.This fixture was designed to basically meet the engineering needs of the design used in this method can also be designed for similar reference fixture.

KEY WORDS: Machining fixture，combination machine，dedicated fixture

目　錄

前　言 1

第1章 夾具設(shè)計(jì)要求 3

1.1 鉆鏜孔夾具的方案設(shè)計(jì)要求 3

1.2 夾具總體設(shè)計(jì)的要求 3

第2章 設(shè)計(jì)前的準(zhǔn)備工作 5

2.1工件的生產(chǎn)綱領(lǐng)和生產(chǎn)批量 5

2.2熟悉工件零件圖 6

2.3工件的加工方法 6

第3章 夾具總體方案設(shè)計(jì) 8

3.1 確定夾具的類型 8

3.2 夾具的基本組成與設(shè)計(jì)特點(diǎn) 9

3.3 定位方案設(shè)計(jì) 11

3.3.1 定位方案的確定 11

3.3.2 定位誤差的計(jì)算 13

3.4 夾緊方式及夾緊裝置的確定 14

3.4.1夾具中夾緊方式的設(shè)計(jì) 14

3.4.2夾緊設(shè)計(jì)的基本要求 15

3.4.3夾緊力方向和位置的確定 15

3.4.4夾緊裝置的確定 17

3.4.5夾緊力的計(jì)算 18

3.5 導(dǎo)向裝置的確定 20

3.5.1導(dǎo)向裝置的布置方式 20

3.5.2鏜套的選擇 21

3.5.3 導(dǎo)向裝置的材料及技術(shù)條件 24

3.6 夾具體的設(shè)計(jì) 25

3.6.1 夾具體的作用及基本要求 25

3.6.2 夾具體的設(shè)計(jì) 26

3.7 夾具導(dǎo)軌的設(shè)計(jì) 27

第4章 夾具裝配圖的設(shè)計(jì) 29

4.1 夾具裝配圖設(shè)計(jì)要求 29

4.2 夾具裝配圖比例及字體的選擇 30

4.3 夾具裝配圖的尺寸標(biāo)注及技術(shù)要求 31

4.3.1 裝配圖的尺寸標(biāo)注 31

4.3.2 裝配圖的技術(shù)要求 32

4.4 夾具零件圖的尺寸標(biāo)注及技術(shù)要求 33

4.4.1 夾具零件圖的尺寸標(biāo)注 33

4.4.2 夾具零件圖的技術(shù)要求 34

第5章 夾具設(shè)計(jì)主要零部件材料的選用 35

結(jié)　論 36

謝 辭 37

參考文獻(xiàn) 38

外文資料翻譯 39