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外文原文.pdf

車床組合夾具設(shè)計(jì)

一種自動(dòng)化夾具設(shè)計(jì)方法外文翻譯.zip

三通閥.dwg

三通閥零件圖.dwg

中期報(bào)告.doc

壓板.dwg

定位塊2張.dwg

擋鐵.dwg

文件清單.txt

法蘭盤.dwg

螺柱.dwg

裝配圖.dwg

譯文.doc

車床組合夾具的設(shè)計(jì)開題報(bào)告.doc

車床組合夾具的設(shè)計(jì)論文.doc

連接板.dwg

車床組合夾具設(shè)計(jì)

摘  要

根據(jù)六點(diǎn)定位原理和定位基準(zhǔn)的選擇原則，采用長V型塊，支承塊和定位擋鐵定位。長V型塊置于拱形肋板后限制x軸的兩自由度和z軸的兩自由度，擋鐵置于孔端限制繞y軸旋轉(zhuǎn)的自由度，支承塊置于肋板下方限制沿y軸移動(dòng)的自由度。依據(jù)相關(guān)原理計(jì)算定位誤差。根據(jù)夾緊方式的選擇原則，選擇夾緊元件為壓板壓頭和V型塊，然后通過切削力進(jìn)行夾緊力的計(jì)算。夾緊的動(dòng)力裝置選用手動(dòng)壓緊裝置。按照定位元件和夾緊元件設(shè)計(jì)連接件。

以所選元件和裝置為基礎(chǔ)確定夾具總體布局和夾具體的結(jié)構(gòu)形式，并確定好定位元件在夾具體上的位置。繪制夾具方案設(shè)計(jì)，進(jìn)行工序精度分析。對(duì)以上設(shè)計(jì)進(jìn)行審核。最后設(shè)計(jì)夾具總裝配圖。

 關(guān)鍵詞：組合夾具；定位；夾緊；三通接頭

Lathe modular jig and fixture design

Abstract

  According to six localizations principles and selection principle of the localization datum, using the long V block, the supporting block and the localization comes true the hard localization. The long V block putted in the arch ribbed plate to limit two degrees of freedom in the x axis and the z axes two degrees of freedom, the iron putted in the hole end limit to the degree of freedom which circle the y rotation of axis, the supporting block putted under the ribbed plate to limit degree of freedom along the y axis migration. Position error is reckoned by the correlation principle. According to the way of the selection principle, discharge head and V block is selected to clamp the part. Then computation of the strength is achieved by carrying on through the cutting force clamps. The power of clamps is from the hydraulic unit. Design of bridge piece is according to the location part and the clamp part. The guide part designing in this topic is not requested because the cutter bar is short. Other parts and equipment are designed following last process. 

    The jig overall arrangement and concrete structure of the body clamp are determined with the above part and the equipment. The position of the components in the kits specific location must be guaranteed, and then design the jig, carry on the working procedure precision analysis. The design review is following. Finally the jig assembly drawing is achieved.

Keywords: Modular jig and fixture; location; clamp; union tee

目  錄

1緒論…………………………………………………………………………………1

 1.1概述…………………………………………………………………………………1

  1.1.1車床夾具的分類………………………………………………………………1

  1.1.2夾具的組成……………………………………………………………………2

  1.1.3夾具體…………………………………………………………………………3

  1.1.4車床夾具在機(jī)械加工中的作用………………………………………………3

  1.1.5車床夾具在車床中的地位及作用……………………………………………3

  1.1.6國內(nèi)外夾具的發(fā)展與趨勢……………………………………………………4

 1.2夾具研究現(xiàn)狀………………………………………………………………………5

  1.2.1機(jī)床夾具的現(xiàn)狀………………………………………………………………5

  1.2.2現(xiàn)代機(jī)床夾具的發(fā)展方向……………………………………………………6

 1.3國內(nèi)外對(duì)組合夾具的發(fā)展及研究狀況……………………………………………7

  1.3.1國內(nèi)對(duì)組合夾具的發(fā)展?fàn)顩r…………………………………………………7

  1.3.2國外對(duì)組合夾具的發(fā)展?fàn)顩r…………………………………………………8

 1.4本文主要研究內(nèi)容…………………………………………………………………9

2零件分析…………………………………………………………………………10

 2.1零件的選擇與分析………………………………………………………………10

 2.2工藝路線的確定…………………………………………………………………10

 2.3總體設(shè)計(jì)中對(duì)夾具設(shè)計(jì)的重要的參數(shù)………………………………………… 11

3車床組合的夾具設(shè)計(jì)…………………………………………………………  12 

 3.1夾具設(shè)計(jì)要求與選型……………………………………………………………12

  3.1.1夾具設(shè)計(jì)要求…………………………………………………………………12

  3.1.2夾具的選型……………………………………………………………………13

 3.2定位和夾緊方案的確定…………………………………………………………13

  3.2.1定位和夾緊方案的選擇分析…………………………………………………14

 3.3定位元件和夾緊元件的設(shè)計(jì)計(jì)算………………………………………………15

  3.3.1定位元件的設(shè)計(jì)計(jì)算………………………………………………………… 15

  3.3.2夾緊機(jī)構(gòu)的設(shè)計(jì)計(jì)算…………………………………………………………16

 3.4誤差分析計(jì)算……………………………………………………………………17

  3.4.1影響加工精度的因素…………………………………………………………17

  3.4.2誤差的計(jì)算……………………………………………………………………17

 3.4.3保證加工精度………………………………………………………………… 18

 3.5夾具結(jié)構(gòu)的確定…………………………………………………………………19

  3.5.1夾具體的確定…………………………………………………………………19

 3.6夾緊力的確定……………………………………………………………………21

  3.6.1夾緊力的計(jì)算公式……………………………………………………………21

  3.6.2夾緊力的計(jì)算…………………………………………………………………22

4 結(jié)論……………………………………………………………………………… 24

參考文獻(xiàn)……………………………………………………………………………25

致謝……………………………………………………………………………………26