尾座的工藝工裝設(shè)計(jì)與制作

機(jī)電工程學(xué)院 

[摘 要]：尾座體是車(chē)床上的重要的部件之一，是車(chē)床上用以支撐軸類(lèi)零件車(chē)削加工和實(shí)施鉆孔的主要車(chē)床附件。本文針對(duì)給定的車(chē)床尾座體進(jìn)行了加工工藝規(guī)程設(shè)計(jì)與制作及鏜Ф75H6孔夾具的設(shè)計(jì)。首先，對(duì)尾座體的零件結(jié)構(gòu)和尺寸進(jìn)行了分析，根據(jù)其生產(chǎn)類(lèi)型和技術(shù)要求，制定出了針對(duì)此尾座體的合理的機(jī)械加工工藝規(guī)程，并完成了相關(guān)的機(jī)械加工工藝卡片。其次，根據(jù)需要，為尾座體零件機(jī)械加工工藝中的一道鏜孔工序設(shè)計(jì)了專(zhuān)用的鏜孔夾具，其中主要包括定位基準(zhǔn)的選擇，定位元件的選擇，定位誤差的分析與計(jì)算，切削力及夾緊力的計(jì)算等，最后繪制出一整套完整的夾具裝配圖和部分非標(biāo)零件圖，并和小組成員一起完成了夾具的實(shí)物制作。在完成本課題內(nèi)容過(guò)程中充分地利用了所學(xué)理論知識(shí)，在圖書(shū)館和網(wǎng)上查閱了相關(guān)的資料，做出了符合生產(chǎn)需要的設(shè)計(jì)。

[關(guān)鍵詞]：尾座體；    工藝 ；  工裝；  設(shè)計(jì)

Design of Technology and Equipment on The tailstock and Manufacturing of Parts 

Mechanical Design, Manufacturing and Automation Major  LIU Jun-jie

Abstract：Lathe tailstock  is one of the important components is used to support the shaft lathe turning lathe and implementation of major drilling accessories. This lathe tailstock for a given body is a design and production process planning and boring Ф75H6 Kong fixture design. First, the tailstock body parts structure and size were analyzed according to their type of production and technical requirements, develop a rational for this tailstock body machining process planning, and completed the relevant machining process card. Secondly, according to the needs, the tailstock body parts machining process in a boring process design of a dedicated jig boring, which mainly include locating datum selection, positioning component selection, positioning error analysis and calculation of the cutting forces and clamping force calculation, finally draw a complete fixture assembly drawings and some non-standard parts diagram, and finished with team members fixture kind production. Upon completion of the topics to be covered during the full use of the theory of knowledge, in libraries and online access to the relevant information to make the design in line with production needs.

Keywords：tailstock ；   craft ； clamping ；  design

                                                 

目  錄

1. 緒論 5

2. 尾座體的工藝設(shè)計(jì) 6

2.1 機(jī)械加工工藝規(guī)程概述 6

2.1. 1 工藝規(guī)程的作用 7

2.1.2工藝規(guī)程的制定原則 7

2.1.3工藝規(guī)程的制訂步驟 7

2.2工藝分析 8

2.2.1  零件的技術(shù)條件 8

2.2.3 零件的材料 10

2.3毛坯的選擇 10

2.3.1毛坯的種類(lèi) 10

2.3.2毛坯選擇時(shí)應(yīng)考慮的因素 11

2.3.3毛坯的類(lèi)型及制造方法確定 12

2.5 機(jī)械加工工藝路線的擬訂 15

2.5.1表面的加工方法的選擇 15

2.5.2 加工工藝路線的擬訂 17

2.7確定切削用量及基本工時(shí) 20

3 尾座體的工裝設(shè)計(jì) 39

3.1夾具概述 39

3.1.1概述 39

3.1.2  定位方案及定位元件 40

3.1.3.1夾緊裝置的組成 41

3.1.3.3  夾緊力方向與作用點(diǎn)選擇 41

3.1.3.6  標(biāo)注尺寸和公差配合 43

3.2  鏜孔夾具設(shè)計(jì) 43

3.2..1  加工要求 43

3.2.2 定位方案及定位元件的設(shè)計(jì) 44

3.2.2..1 定位方案的選擇 44

3.2.2.2 定位元件的設(shè)計(jì) 45

3.2.4底座和支架設(shè)計(jì) 46

3.2.4.1鏜模支架的確定 46

3.2.5鏜孔夾具的確定 47

4.全文總結(jié) 51

1.本文的主要工作 51

2.畢業(yè)設(shè)計(jì)心得 51

參考文獻(xiàn) 52

致謝 53